142 results on '"Cheng, N"'
Search Results
2. Cytokine Regulation of Metastasis and Tumorigenicity
- Author
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Yao, M., primary, Brummer, G., additional, Acevedo, D., additional, and Cheng, N., additional
- Published
- 2016
- Full Text
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3. Hepatic Stem Cells: Lineage Biology and Pluripotency
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Cheng, N., primary, Yao, Hsin-lei, additional, and Reid, Lola M., additional
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- 2008
- Full Text
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4. List of Contributors
- Author
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Ahlstrom, Jon D., primary, Ahsan, Taby, additional, Allickson, Julie, additional, Almarza, Alejandro J., additional, Anderson, James M., additional, Andrews, Peter, additional, Aslan, Hadi, additional, Atala, Anthony, additional, Badylak, Stephen F., additional, Batra, Ashok, additional, Baumann, M. Douglas, additional, Bellamkonda, Ravi V., additional, Bergman, Nicole M., additional, Beyhan, Z., additional, Bhatia, Mickie, additional, Bhatia, Sangeeta N., additional, Black, Peter M., additional, Blau, Helen, additional, Boden, Scott D., additional, Brey, Eric M., additional, Brivanlou, Ali H., additional, Brown, Chris R., additional, Bruder, Scott P., additional, Chambers, S.M., additional, Chen, Christopher S., additional, Chen, LiHow, additional, Chen, Mike, additional, Chen, Sulin, additional, Cheng, N., additional, Christ, George J., additional, Chung, Seyung, additional, Cibelli, J.B., additional, Cimini, Massimo, additional, De Coppi, Paolo, additional, Dodla, Mahesh C., additional, Dominguez-Bendala, Juan, additional, Doyle, AM, additional, Durfor, Charles N., additional, Echelard, Yann, additional, Effros, Rita B., additional, Elisseeff, Jennifer, additional, Ellis, Ewa C.S., additional, Emamaullee, Juliet A., additional, Erickson, Carol A., additional, De Filippo, Roger, additional, Fink, Donald, additional, Fissell, William H., additional, Friedlaender, Gary E., additional, Furth, Mark E., additional, Gafni, Yossi, additional, Gage, Keneth, additional, Garcia, Andres, additional, Gavin, William, additional, Gazit, Daniel, additional, Gazit, Zulma, additional, Gemmiti, Christopher S., additional, Gerlach, Jörg C., additional, Gokhale, Paul J., additional, Goodell, M.A., additional, Griffith, May, additional, Guenin, Louis M., additional, Giuliani, Stefano, additional, Guldberg, Robert E., additional, Hacker, M.C., additional, Harrison, Benjamin S., additional, Hartmann, Bernd, additional, Hilbert, Stephen H., additional, Hillel, Alexander, additional, Hipp, Jason, additional, Holcomb, Col. J.B., additional, Hollinger, Jeffrey O., additional, Holy, Chantal E., additional, Hout, Mariah, additional, Hu, Jiang, additional, Huang, George T.-J., additional, Huard, Johnny, additional, Hui, Elliot E., additional, Humes, H. David, additional, Intaglietta, Marcos, additional, Ji, Junfeng, additional, Jiang, Yueha, additional, Johnen, Christa, additional, Johnston, Josephine, additional, Joraku, Akira, additional, Kaplan, David L., additional, Kaplan, David S., additional, Khang, Gilson, additional, Khanzada, Rehan N., additional, Kim, Soon Hee, additional, Kim, Moon Suk, additional, Kimelman, Nadav, additional, Klimanskaya, Irina, additional, Kluge, Jonathan A., additional, Kolambkar, Yash, additional, Koh, Chester J., additional, Komura, Makoto, additional, Kondziolka, Douglas, additional, Konya, Deniz, additional, Kues, Wilfried A., additional, Kwong, Francois Ng kee, additional, Lamba, Deepak, additional, Lee, Hai Bang, additional, Lee, Hyukjin, additional, Leisk, Gary G., additional, Leong, Kam W., additional, Levine, Ariel J., additional, Li, Ren Ke, additional, Li, Wan-Ju, additional, Lim, Grace J., additional, Lin, Yan, additional, Lindblad, William J., additional, Liu, Wendy F., additional, Liu, Xiaohua, additional, Lucas-Hahn, Andrea, additional, Luttun, Aernout, additional, Lynch, Samuel, additional, Ma, Peter X., additional, Maher, Ellen, additional, Martins-Green, Manuela, additional, McClelland, Randall E., additional, McFarland, Richard, additional, McIntire, Larry V., additional, Meade, Harry, additional, Melican, David L., additional, Mikos, A.G., additional, Montoya, Fernando Ulloa, additional, Nerem, Robert M., additional, Niemann, Heiner, additional, Nori, Aparna, additional, Pabst, Patrea L., additional, Park, Kook In, additional, Park, Tae Gwan, additional, Patterson, David P., additional, Pauwelyn, Karen, additional, Pelled, Gadi, additional, Perin, Laura, additional, Petreaca, M., additional, Pileggi, Antonello, additional, Pomerantz, Jason H., additional, Porter, Blaise, additional, Radisic, Milica, additional, Ratner, Buddy D., additional, Reddi, A. Hari, additional, Reh, Thomas A., additional, Reid, Lola M., additional, Ricordi, Camillo, additional, Ross, Jeff, additional, Russell, Alan J., additional, Santos, Filipe N.C., additional, Schmitz, John P., additional, Schuch, Gunter, additional, Sedrakyan, Sargis, additional, Sefton, Michael V., additional, Serafini, Marta, additional, Shah, Paulesh, additional, Shapiro, A.M. James, additional, Sheardown, Heather, additional, Shoichet, Molly S., additional, Siddiqui, M. Minhaj, additional, Sidman, Richard L., additional, Silverman, Ronald, additional, Skuk, Daniel, additional, Snyder, Evan, additional, Soker, Shay, additional, Spector, Myron, additional, Stocum, David L., additional, Strom, Stephen C., additional, Taylor, Doris A., additional, Teng, Yang D., additional, Thomson, James, additional, Tranquillo, Robert T., additional, Tremblay, Jacques P., additional, Tsai, Amy, additional, Tuan, Rocky S., additional, Tubo, Ross S., additional, Van Dyke, Mark, additional, Vavoie, Deborah, additional, Verfaillie, Catherine, additional, Volenec, F. Jerry, additional, Wargo, Sara, additional, Warnwath, Joseph W., additional, Wechsler, Lawrence, additional, Wei, Shen, additional, Weisel, Richard D., additional, West, Jennifer L., additional, Williams, Chrysanthi, additional, Williams, J. Koudy, additional, Witten, Celia, additional, Wolf, Steven E., additional, Woo, Savio L.-Y., additional, Wosnick, Jordan H., additional, Wrenzycki, Christine, additional, Xaymardan, Munira, additional, Yao, Hsin-Lei, additional, Yazdani, Saami K., additional, Yelick, Pamela C., additional, Yoo, James J., additional, Yu, Junying, additional, Zeilinger, Katrin, additional, Zeng, Lepeng, additional, Zenovich, Andrey G., additional, Zhong, Bonan, additional, Ziomek, Carol A., additional, and Zoloth, Laurie, additional
- Published
- 2008
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5. Association between cervical lymph node dissection and dementia: a retrospective analysis.
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Chao S, Kuan C, Huang C, Lin Y, Huang H, Hsieh J, Horng S, Tai H, and Cheng N
- Subjects
- Humans, Male, Female, Retrospective Studies, Aged, Middle Aged, Incidence, Lymph Node Excision methods, Postoperative Complications epidemiology, Postoperative Complications etiology, Risk Factors, Dementia epidemiology, Head and Neck Neoplasms surgery, Head and Neck Neoplasms pathology, Neck Dissection methods
- Abstract
Background: Dementia, characterized by memory loss and cognitive impairment, considerably impacts individuals and society. Our research focused on cervical lymph nodes, crucial for CNS lymphatic drainage, in the context of dementia. We hypothesized that the patients with head and neck cancer (HNC) undergoing cervical lymph node dissection (CLND) may have increased dementia risk due to obstructed lymphatic pathways., Methods: We conducted a retrospective analysis of the electronic medical records from patients over 60 years diagnosed with HNC who underwent CLND between March 2007 and April 2023. We collected demographic data, calculated dementia incidence rates, and compared parameters between patients with and without dementia., Results: Among the 251 patients with HNC who underwent CLND, 234 were men and 17 were women. Nine male patients developed dementia within an average of 50.1 ± 35.3 months post-surgery. The dementia incidence rate was 0.7 per 100 patient-years, with a cumulative incidence of 10.34% over 8.6 years. The CLND patterns were associated with dementia (p = 0.028), with bilateral supraomohyoid neck dissection (SOHND)/modified radical neck dissection (MRND) and unilateral MRND combined with any neck dissection type on the other side presenting higher risks than unilateral MRND/SOHND (p = 0.016)., Conclusion: Patients with HNC undergoing bilateral and comprehensive lymph node dissection showed higher dementia risk, highlighting the importance of the neck's lymphatic role in brain health. These findings may guide future surgical practices., (Copyright © 2024 British Association of Plastic, Reconstructive and Aesthetic Surgeons. Published by Elsevier Ltd. All rights reserved.)
- Published
- 2024
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6. An artificial peptide inhibits autophagy through calcineurin-TFEB pathway.
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Yang Y, Li Y, Shang H, Liu Y, Li W, Chen L, Cheng N, Zhang Y, Zhang N, Yin Y, Tong L, Li Z, Yang J, and Luo J
- Subjects
- Humans, Animals, HEK293 Cells, Mice, Signal Transduction drug effects, Lysosomes metabolism, Calcineurin metabolism, Calcineurin genetics, Autophagy drug effects, Basic Helix-Loop-Helix Leucine Zipper Transcription Factors metabolism, Basic Helix-Loop-Helix Leucine Zipper Transcription Factors genetics, Peptides pharmacology, Peptides metabolism
- Abstract
We previously reported that a bioactive peptide (pep3) can potently inhibit the enzyme activity of purified calcineurin (CN). In this paper, we further demonstrate that transfected pep3 can strongly inhibit CN enzyme activity in HEK293 cells. Transcription factor EB (TFEB) plays an important role in the autophagy-lysosome pathway (ALP) as one of the substrates of CN, so we study the effect of pep3 on the CN-TFEB-ALP pathway. Pep3 can significantly inhibit the mRNA levels of the TFEB downstream genes and the expression of the autophagy-associated proteins, and autophagy flux in HEK293 cells. We also validated the inhibitory effect of pep3 on autophagy in mice. These findings may provide a new idea for discovering more CN inhibitors and autophagy inhibitory drugs., Competing Interests: Declaration of competing interest We confirm that this work is original and not written by AI, nor has it been published elsewhere. All authors have no conflicts of interest that need to be disclosed., (Copyright © 2024 Elsevier B.V. All rights reserved.)
- Published
- 2024
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7. Vertical distribution and migration of heavy metals in soil of green stormwater infrastructure receiving roof runoff.
- Author
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Bao J, Chang Y, Cheng N, Li Y, Chang X, Feng J, Nan X, and Ren H
- Abstract
In order to achieve effective management of urban stormwater runoff, green stormwater infrastructure (GSI) has been widely used worldwide. However, the problem of heavy metal contamination in GSI soils has gradually become a limiting factor for their development. In this paper, concentrations of 6 heavy metals were detected in soils from 0 to 80 cm depth in the GSI receiving roof runoff. The total concentration of the 6 heavy metals in topsoil of the GSI was 395 mg·kg
-1 , which was significantly higher than that of the control site (p < 0.01). Vertically, heavy metal concentrations in GSI soils decreased with depth. The concentrations of As, Cr, Cu, Pb and Zn in the soils at different depths (0-80 cm) of GSI were higher than those in the soils at the corresponding depths at the control site. This suggests that heavy metals may have migrated below 80 cm. The decrease in Zn/Cu ratios with depth indicated that Zn has a higher initial concentration and more of Zn accumulated in upper layer soil than Cu. Finally, we simulated the vertical migration of dissolved heavy metals in GSI soils by the Hydrus-1D model. Heavy metal concentrations in runoff and soil particle size distributions were examined, while adsorption isotherm experiments were conducted to determine input parameters for the model. The simulation results showed that only dissolved Zn would accumulate in the top soil layer. A short time of infiltration (<60 min) may have little effect on the profile shape of dissolved heavy metal levels in the soil. Substantial increases in infiltration may result in the migration of dissolved heavy metals to deeper depths in the soil., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024 Elsevier B.V. All rights reserved.)- Published
- 2024
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8. Optimizing stormwater runoff treatment: The role of two-stage tandem rain gardens.
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Tang S, Song Y, Wang Y, Jia Z, Gao X, Cheng N, and Lu T
- Subjects
- Rain chemistry, Nitrogen analysis, Phosphorus analysis, Water Movements, Water Pollutants, Chemical analysis
- Abstract
Regarded as a superior urban stormwater management solution, rain gardens can effectively store rainfall runoff and purify water quality. However, the efficiency of traditional rain gardens (TRG) in regulating runoff and removing nitrogen and phosphorus varies under different hydrological conditions. In this study, the TRG was retrofitted to construct a two-stage tandem rain garden (TTRG). Based on the experimental monitoring of rain gardens under natural rainfall from 2011 to 2013, results indicated a significantly higher runoff reduction capacity for the TTRG compared to the traditional garden (p < 0.05), with average runoff and peak flow reduction rates increasing by 42.8% and 36.2%, respectively. Rainfall characteristics significantly impacted the runoff reduction of the TRG (p < 0.05), but not the TTRG (p > 0.05), demonstrating the enhanced control and stability of the TTRG in managing rainfall runoff. The concentration removal efficiency of nitrate nitrogen (NO
3 -N) was significantly improved (p < 0.05), whereas the total phosphorus (TP), ammonium nitrogen (NH- -N) and total nitrogen (TN) were not significantly changed (p > 0.05). The first-order kinetic model was used to fit the removal effect of different pollutants before and after retrofitting the rain garden, and the removal of NO3 -N by the TTRG was better than that of the TRG. The TTRG showed significantly higher load removal efficiencies for TP, NO3 -N, and NH- -N compared to TRG (p < 0.05), with average load removal rates increasing by 49.92%, 75.02%, and 14.81%, respectively. The TTRG can regulate urban rainfall runoff more efficiently and stably. By changing the water flow path in the rain garden, the TTRG has a better runoff reduction ability and pollutant purification effect.3 - -N, and NH3 -N compared to TRG (p < 0.05), with average load removal rates increasing by 49.92%, 75.02%, and 14.81%, respectively. The TTRG can regulate urban rainfall runoff more efficiently and stably. By changing the water flow path in the rain garden, the TTRG has a better runoff reduction ability and pollutant purification effect., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024 Elsevier Inc. All rights reserved.)- Published
- 2024
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9. Implementation of a Preoperative Frailty Screening and Optimization Pathway for Vascular Surgery Patients is Associated with Decreased 30-Day Readmission.
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Dossabhoy SS, Manuel SR, Yawary F, Lahiji-Neary T, Cheng N, Cianfichi L, Bagdasarian A, George EL, Marwell JG, Lee JT, Dalman RL, Schmiesing C, and Arya S
- Abstract
Objective: Frailty is characterized by reduced physiologic reserve and vulnerability to adverse events in the presence of a stressor such as surgery. We prospectively implemented a preoperative frailty screening and optimization pathway for vascular surgery patients and assessed its impact on postoperative outcomes., Methods: As part of an ongoing quality improvement initiative, surgical frailty was assessed prospectively in all patients undergoing inpatient surgery using the Risk Analysis Index (RAI). Baseline data were collected from May to July 2022. Frail patients (RAI score ≥ 37) were referred to an anesthesia optimization clinic, nutrition consultation, and case management evaluation in the intervention phase (August 2022 to July 2023). Primary outcomes were postoperative hospital length of stay, 30-day readmission, and 30-day mortality. Secondary outcomes included ICU admission, ICU length of stay, discharge disposition, and non-home discharge. Two-way analyses compared frail vs non-frail patients and pre- vs post-intervention groups using Student t-test or Wilcoxon rank sum test for continuous variables and chi-squared or Fisher's exact test for categorical outcomes., Results: Of all patients scheduled for elective inpatient vascular surgery procedures at a single institution (N=225), 216 completed frailty screening [mean age 72 years, 68.5% male, 54.6% white, mean RAI 28.9, 18.5% frail]. Of these, 15 had surgeries cancelled, and 201 ultimately underwent surgery with 36 (17.9%) identified as frail. Overall, frail patients had significantly longer ICU (median [IQR] 4.0 [2.5, 13.5] vs 2.0 [1, 4] days, P=.001) and hospital length of stay (2.45 [1.51, 5.67] vs 1.23 [1.0, 2.10] days, P=.001), higher non-home discharge (30.6% vs 4.2%, P<.0001), and higher 30-day readmission (22.2% vs 6.7%, P=.009) compared to non-frail patients. Comparing pre- and post-intervention groups, 30-day readmission for the overall cohort declined significantly (22.2% to 7.5%, P=.03). Amongst frail patients, there was a trend to reduced hospital length of stay (4.73 to 2.14 days), non-home discharge (57.1% vs 24.1%), and 30-day readmission (42.9% to 17.2%); however, these did not reach statistical significance. Overall, 30-day mortality was 1.5% with all 3 deaths (2 frail, 1 non-frail) occurring post-intervention (0% pre vs 1.7% post, P=1.0)., Conclusions: Successful implementation of a preoperative frailty screening and optimization pathway for patients undergoing elective vascular surgery led to a significant decrease in overall 30-day readmission and a trend toward reduced hospital length of stay, non-home discharge, and 30-day readmission for frail patients. Further expansion to all surgical clinics has the potential to improve quality metrics for the healthcare system., (Copyright © 2024. Published by Elsevier Inc.)
- Published
- 2024
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10. In vitro comparison of guide planes for removable partial dentures prepared with CAD-CAM-assisted templates, guiding rod templates, and freehand.
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Cheng N, Yu H, Shan W, and Wu J
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- Humans, Dental Abutments, Models, Dental, Computer-Aided Design, Denture, Partial, Removable, Denture Design methods, Printing, Three-Dimensional
- Abstract
Objectives: This study aimed to evaluate the accuracy of computer-aided design and computer-aided manufacturing (CAD-CAM)-assisted templates (CCAT), guiding rod templates (GRT), and freehand (FH) preparation of guide planes., Methods: Forty-five identical maxillary resin casts were divided into three groups, in which the guide planes of the two abutment teeth were prepared using a CCAT (n=15), GRT (n=15), and FH (n=15). The CCAT and GRT were digitally designed on a digital cast of virtually prepared guide planes and fabricated using three-dimensional printing (3DP) technology. To assess the 3D trueness, the prepared guide planes were digitally scanned and compared to the virtually designed guide planes. The angle deviation was measured to assess the trueness of the direction of the guide plane preparation. Shapiro-Wilk and Levene's tests were used to check the normality and equivalence of the variance of the data. The data were compared by using the Kruskal‒Wallis H test (α=0.05)., Results: The CCAT group exhibited significantly better 3D trueness (78.5±19.8 μm) than the GRT group (211.3±42.4 μm, p<0.05) and the FH group (198.9±44.3 μm, p<0.05). Additionally, the CCAT group (1.31±0.50°) showed significantly smaller direction trueness compared to the GRT (4.65±0.72°, p<0.05) and FH (5.64±0.70°, p<0.05) groups., Conclusions: The novel CAD-CAM-assisted template significantly improved the quality of the guide planes compared with the GRT and FH procedures. This enhancement suggests that removable partial dentures can be predictably inserted immediately after guide plane preparation., Clinical Significance: CAD-CAM-assisted templates improve the quality of guide plane preparation., Competing Interests: Declaration of competing interest None., (Copyright © 2024 Elsevier Ltd. All rights reserved.)
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- 2024
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11. Human induced pluripotent stem cell line (FDHSi005-A) derived from a patient with a deep intronic variant in the GNE gene.
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Jiao K, Zhang J, Wang N, Gu X, Chang X, Xia X, Zhu B, Gao M, Cheng N, Zhao C, Xi J, and Zhu W
- Abstract
GlcNAc2-epimerase myopathy is a rare autosomal recessive myopathy characterized by distal involvement in the lower extremities. Our study reprogrammed human-induced pluripotent stem cells from peripheral blood mononuclear cells of a patient with GNE gene deep intronic variant c.862 + 870C>T and c.478C>T compound heterozygous mutations that co-segregated with the disease. The generated iPSCs express pluripotent cell markers with no mycoplasma contamination. Additionally, these iPSCs demonstrated pluripotency, the capacity to differentiate into the three germ layers, and maintained normal karyotypes. Importantly, we identified that these iPSCs possess the same specific mutations as the patient, making them a robust model for studying GNE myopathy and developing potential therapeutic interventions., Competing Interests: Declaration of competing interest The authors declare the following financial interests/personal relationships which may be considered as potential competing interests: Wenhua Zhu reports financial support was provided by National Natural Science Foundation of China (82171398). Jianying Xi reports financial support was provided by National Natural Science Foundation of China (82271437). If there are other authors, they declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024. Published by Elsevier B.V.)
- Published
- 2024
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12. Enhancing cancer immunotherapy: Nanotechnology-mediated immunotherapy overcoming immunosuppression.
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Chen Y, Zhou Q, Jia Z, Cheng N, Zhang S, Chen W, and Wang L
- Abstract
Immunotherapy is an important cancer treatment method that offers hope for curing cancer patients. While immunotherapy has achieved initial success, a major obstacle to its widespread adoption is the inability to benefit the majority of patients. The success or failure of immunotherapy is closely linked to the tumor's immune microenvironment. Recently, there has been significant attention on strategies to regulate the tumor immune microenvironment in order to stimulate anti-tumor immune responses in cancer immunotherapy. The distinctive physical properties and design flexibility of nanomedicines have been extensively utilized to target immune cells (including tumor-associated macrophages (TAMs), T cells, myeloid-derived suppressor cells (MDSCs), and tumor-associated fibroblasts (TAFs)), offering promising advancements in cancer immunotherapy. In this article, we have reviewed treatment strategies aimed at targeting various immune cells to regulate the tumor immune microenvironment. The focus is on cancer immunotherapy models that are based on nanomedicines, with the goal of inducing or enhancing anti-tumor immune responses to improve immunotherapy. It is worth noting that combining cancer immunotherapy with other treatments, such as chemotherapy, radiotherapy, and photodynamic therapy, can maximize the therapeutic effects. Finally, we have identified the challenges that nanotechnology-mediated immunotherapy needs to overcome in order to design more effective nanosystems., Competing Interests: The authors have no conflicts of interest to declare., (© 2024 The Authors.)
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- 2024
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13. A multi-component, multi-target, and multi-pathway prediction method for Chinese medicine based on the combination of mass spectrometry analysis and network analysis: An example using Weifuchun.
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Zhong Y, Wen W, Luo Z, and Cheng N
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- Chromatography, High Pressure Liquid methods, Signal Transduction drug effects, Drugs, Chinese Herbal chemistry, Drugs, Chinese Herbal pharmacology, Mass Spectrometry methods, Molecular Docking Simulation
- Abstract
Weifuchun, a Chinese medicinal prescription made from herbs of natural origin including Hongshen (Ginseng Radix et Rhizoma Rubra), Xiangchacai (Rabdosia Amethystoides), and Zhiqiao (Aurantii Fructus), has attracted increasing attention for clinically treating chronic atrophic gastritis, which is characterized by the chronic inflammation of the gastric mucosa leading to progressive loss of gastric glandular cells. To investigate the active ingredients and potential mechanisms of WFC, it was analyzed using a novel multi-component, multi-target, and multi-pathway prediction method. High/ultra-performance liquid chromatography coupled with quadrupole time-of-flight mass spectrometry (HPLC/UPLC-Q-TOF-MS) was employed to separate and profile the chemical constituents of WFC with high precision and efficiency. Network analysis and molecular docking were used to predict bioactive compounds and their interactions with biological targets. The results highlight 42 significant compounds potentially contributing to the therapeutic effects of WFC by effecting on several key pathways, including proved PI3K/Akt, NF-κB, and JAK/STAT signaling pathways. This study showcases the efficacy of combining advanced chromatographic techniques with computational methods to elucidate the pharmacological mechanisms of complex botanical drugs., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024. Published by Elsevier B.V.)
- Published
- 2024
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14. Bridging papermaking and hydrogel production: Nanoparticle-loaded cellulosic hollow fibers with pitted walls as skeleton materials for multifunctional electromagnetic hydrogels.
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Yuan Z, Cheng N, Li J, Yuan H, Peng J, Qian X, Ni Y, He Z, and Shen J
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- Electric Conductivity, Paper, Electromagnetic Phenomena, Nanoparticles chemistry, Cellulose chemistry, Hydrogels chemistry
- Abstract
Electromagnetic hydrogels have attracted significant attention due to their vast potential in soft robotics, biomedical engineering, and energy harvesting. To facilitate future commercialization via large-scale industrial processes, we present a facile concept that utilizes the specialized knowledge of papermaking to fabricate hydrogels with multifunctional electromagnetic properties. The principles of papermaking wet end chemistry, which involves the handling of interactions among cellulosic fibers, fines, polymeric additives, and other components in aqueous systems, serves as a key foundation for this concept. Notably, based on these principles, the versatile use of chemical additives in combination with cellulosic materials enables the tailored design of various products. Our methodology exploits the unique hierarchically pitted and hollow tube-like structures of papermaking grade cellulosic fibers with discernible pits, enabling the incorporation of magnetite nanoparticles through lumen loading. By combining microscale softwood-derived cellulosic fibers with additives, we achieve dynamic covalent interactions that transform the cellulosic fiber slurry into an impressive hydrogel. The cellulosic fibers act as a skeleton, providing structural support within the hydrogel framework and facilitating the dispersion of nanoparticles. In accordance with our concept, the typical hydrogel exhibits combined attributes, including electrical conductivity, self-healing properties, pH responsiveness, and dynamic rheologic behavior. Our approach not only yields hydrogels with interesting properties but also aligns with the forefront of advanced cellulosic material applications. These materials hold the promise in remote strain sensing devices, electromagnetic navigation systems, contactless toys, and flexible electronic devices. The concept and findings of the current work may shed light on materials innovation based on traditional pulp and paper processes. Furthermore, the facile processes involved in hydrogel formation can serve as valuable tools for chemistry and materials education, providing easy demonstrations of principles for university students at different levels., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024 The Authors. Published by Elsevier B.V. All rights reserved.)
- Published
- 2024
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15. Prediction of the bioaccessibility and accumulation of cadmium in the soil-rice-human system based on optimized DGT and BCR coupled models.
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Chen R, Hu M, Cheng N, Shi R, Ma T, Wang W, and Huang W
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- Humans, Soil chemistry, Environmental Monitoring methods, Risk Assessment, Metals, Heavy analysis, Metals, Heavy metabolism, Oryza metabolism, Oryza chemistry, Cadmium metabolism, Cadmium analysis, Soil Pollutants analysis, Soil Pollutants metabolism, Biological Availability
- Abstract
Cadmium, as a typical heavy metal, has the potential to induce soil pollution and threaten human health through the soil-plant-human pathway. The conventional evaluation method based on the total content in soil cannot accurately represent the content migrated from the food chain to plants and the human body. Previous studies focused on the process of plant enrichment of heavy metals in soil, and very few studies directly predicted human exposure or risk through the labile state of Cd in soil. Hence, a relatively accurate and convenient prediction model of Cd release and translocation in the soil-rice-human system was developed. This model utilizes available Cd and soil parameters to predict the bioavailability of Cd in soil, as well as the in vitro bioaccessibility of Cd in cooked rice. The bioavailability of Cd was determined by the Diffusive Gradients in Thin-films technology and BCR sequential extraction procedure, offering in-situ quantification, which presents a significant advantage over traditional monitoring methods and aligns closely with the actual uptake of heavy metals by plants. The experimental results show that the prediction model based on the concentration of heavy metal forms measured by BCR sequential extraction procedure and diffusive gradients in thin-films technique can accurately predict the Cd uptake in rice grains, gastric and gastrointestinal phase (R
2 =0.712, 0.600 and 0.629). This model accurately predicts Cd bioavailability and bioaccessibility across the soil-rice-human pathway, informing actual human Cd intake, offering scientific support for developing more effective risk assessment methods., Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024 The Authors. Published by Elsevier Inc. All rights reserved.)- Published
- 2024
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16. Serum analysis based on SERS combined with 2D convolutional neural network and Gramian angular field for breast cancer screening.
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Cheng N, Gao Y, Ju S, Kong X, Lyu J, Hou L, Jin L, and Shen B
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- Humans, Female, Spectrum Analysis, Raman, Neural Networks, Computer, Breast, Early Detection of Cancer, Breast Neoplasms diagnosis
- Abstract
Breast cancer is a significant cause of death among women worldwide. It is crucial to quickly and accurately diagnose breast cancer in order to reduce mortality rates. While traditional diagnostic techniques for medical imaging and pathology samples have been commonly used in breast cancer screening, they still have certain limitations. Surface-enhanced Raman spectroscopy (SERS) is a fast, highly sensitive and user-friendly method that is often combined with deep learning techniques like convolutional neural networks. This combination helps identify unique molecular spectral features, also known as "fingerprint", in biological samples such as serum. Ultimately, this approach is able to accurately screen for cancer. The Gramian angular field (GAF) algorithm can convert one-dimensional (1D) time series into two-dimensional (2D) images. These images can be used for data visualization, pattern recognition and machine learning tasks. In this study, 640 serum SERS from breast cancer patients and healthy volunteers were converted into 2D spectral images by Gramian angular field (GAF) technique. These images were then used to train and test a two-dimensional convolutional neural network-GAF (2D-CNN-GAF) model for breast cancer classification. We compared the performance of the 2D-CNN-GAF model with other methods, including one-dimensional convolutional neural network (1D-CNN), support vector machine (SVM), K-nearest neighbor (KNN) and principal component analysis-linear discriminant analysis (PCA-LDA), using various evaluation metrics such as accuracy, precision, sensitivity, F1-score, receiver operating characteristic (ROC) curve and area under curve (AUC) value. The results showed that the 2D-CNN model outperformed the traditional models, achieving an AUC value of 0.9884, an accuracy of 98.13%, sensitivity of 98.65% and specificity of 97.67% for breast cancer classification. In this study, we used conventional nano-silver sol as the SERS-enhanced substrate and a portable laser Raman spectrometer to obtain the serum SERS data. The 2D-CNN-GAF model demonstrated accurate and automatic classification of breast cancer patients and healthy volunteers. The method does not require augmentation and preprocessing of spectral data, simplifying the processing steps of spectral data. This method has great potential for accurate breast cancer screening and also provides a useful reference in more types of cancer classification and automatic screening., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024 Elsevier B.V. All rights reserved.)
- Published
- 2024
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17. Diagnosis of Challenging Spinal Muscular Atrophy Cases with Long-Read Sequencing.
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Wang N, Jiao K, He J, Zhu B, Cheng N, Sun J, Chen L, Chen W, Gong L, Qiao K, Xi J, Wu Q, Zhao C, and Zhu W
- Subjects
- Humans, Mutation, Motor Neurons, Exons genetics, Heterozygote, Survival of Motor Neuron 1 Protein genetics, Muscular Atrophy, Spinal diagnosis, Muscular Atrophy, Spinal genetics
- Abstract
Spinal muscular atrophy (SMA) is an autosomal recessive neuromuscular disorder primarily caused by the deletion or mutation of the survival motor neuron 1 (SMN1) gene. This study assesses the diagnostic potential of long-read sequencing (LRS) in three patients with SMA. For Patient 1, who has a heterozygous SMN1 deletion, LRS unveiled a missense mutation in SMN1 exon 5. In Patient 2, an Alu/Alu-mediated rearrangement covering the SMN1 promoter and exon 1 was identified through a blend of multiplex ligation-dependent probe amplification, LRS, and PCR across the breakpoint. The third patient, born to a consanguineous family, bore four copies of hybrid SMN genes. LRS determined the genomic structures, indicating two distinct hybrids of SMN2 exon 7 and SMN1 exon 8. However, a discrepancy was found between the SMN1/SMN2 ratio interpretations by LRS (0:2) and multiplex ligation-dependent probe amplification (0:4), which suggested a limitation of LRS in SMA diagnosis. In conclusion, this newly adapted long PCR-based third-generation sequencing introduces an additional avenue for SMA diagnosis., Competing Interests: Disclosure Statement None declared., (Copyright © 2024 Association for Molecular Pathology and American Society for Investigative Pathology. Published by Elsevier Inc. All rights reserved.)
- Published
- 2024
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18. Characterisation of the MLP genes in peach postharvest cold storage and the regulatory role of PpMLP10 in the chilling stress response.
- Author
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Ma X, Gong C, An R, Li Y, Cheng N, Chen S, Liu H, and Wang S
- Subjects
- Promoter Regions, Genetic genetics, Arabidopsis genetics, Stress, Physiological genetics, Phylogeny, Prunus persica genetics, Gene Expression Regulation, Plant, Plant Proteins genetics, Plant Proteins metabolism, Cold-Shock Response genetics, Cold Temperature
- Abstract
The major latex proteins/ripening-related proteins are a subfamily of the Bet v 1 protein superfamily and are commonly involved in plant development and responses to various stresses. However, the functions of MLPs in the postharvest cold storage of fruits remain uninvestigated. Herein, we identified 30 MLP genes in the peach (Prunus persica) genome that were clustered into three subgroups. Chromosomal location analysis revealed that the PpMLP genes were unevenly distributed on five of the eight peach chromosomes. Synteny analysis of the MLP genes between peach and seven other plant species (five dicotyledons and two monocotyledons) explored their evolutionary characteristics. Furthermore, the PpMLP promoters contained cis-elements for multiple hormones and stress responses. Gene expression analysis revealed that PpMLPs participated in chilling stress responses. Ectopic expression of PpMLP10 in Arabidopsis improved chilling stress tolerance by decreasing membrane damage and maintaining membrane stability. Additional research confirmed that PpWRKY2 participates in PpMLP10-mediated chilling stress by binding to its promoter. Collectively, these results suggest the role of PpMLP10 in enhancing chilling stress tolerance, which is significant for decreasing chilling injury during the postharvest cold storage of peaches., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024 Elsevier B.V. All rights reserved.)
- Published
- 2024
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19. Recombinant human collagen I/carboxymethyl chitosan hydrogel loaded with long-term released hUCMSCs derived exosomes promotes skin wound repair.
- Author
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Wu Q, Guo Y, Li H, Zhang D, Wang S, Hou J, Cheng N, Huang M, Luo L, Li Y, Zhao Y, Tan H, and Jin C
- Subjects
- Humans, Mice, Animals, Hydrogels pharmacology, Wound Healing, Cross-Sectional Studies, Collagen pharmacology, Disease Models, Animal, Collagen Type I pharmacology, Chitosan pharmacology, Exosomes, Mesenchymal Stem Cells
- Abstract
Background: Stem cell exosomes are beneficial in accelerating wound repair. However, the therapeutic function is limited due to its rapid clearance in vivo. To improve the functionality of exosomes in cutaneous wound healing, a novel hydrogel was designed and fabricated by recombinant human collagen I and carboxymethyl chitosan loaded with exosomes derived from human umbilical cord mesenchymal stem cells (hUCMSCs), named as the rhCol I/CMC-Exos hydrogel., Methods: Exosomes were extracted from hUCMSCs and were characterizated by TEM (Transmission Electron Microscopy), and biomarker detection. The rhCol I hydrogel, rhCol I/carboxymethyl chitosan (rhCol I/CMC) hydrogel and the rhCol I/CMC-Exos hydrogel composites were cross-linked by genipin. These materials were assessed and compared for their physical characteristics, including cross-sectional morphology, porosity, pore distribution, and hydrophilicity. Cell biocompatibility on biomaterials was investigated using scanning electron microscopy and CFDA staining, as well as assessed in vivo through histological examination of major organs in mice. Effects of the hydrogel composite on wound healing were further evaluated by using the full-thickness skin defect mice model., Results: Successful extraction of hUCMSCs-derived exosomes was confirmed by TEM,Western Blotting and flow cytometry. The synthesized rhCol I/CMC-Exos hydrogel composite exhibited cytocompatibility and promoted cell growth in vitro. The rhCol I/CMC-Exos hydrogel showed sustained release of exosomes. In the mice full skin-defects model, the rhCol I/CMC-Exos-treated group showed superior wound healing efficiency, with 15 % faster wound closure compared to controls. Histological examinations revealed thicker dermis formation and more balanced collagen deposition in wounds treated with rhCol I/CMC-Exos hydrogel. Mechanistically, the application of rhCol I/CMC-Exos hydrogel increased fibroblasts proliferation, alleviated inflammation responses as well as promoted angiogenesis, thereby was beneficial in promoting skin wound healing and regeneration., Conclusion: Our study, for the first time, introduced recombinant human Collagen I in fabricating a novel hydrogel loaded with hUCMSCs-derived exosomes, which effectively promoted skin wound closure and regeneration, demonstrating a great potential in severe skin wound healing treatment., Competing Interests: Declaration of competing interest The authors declare no conflict of interest., (Copyright © 2024 Elsevier B.V. All rights reserved.)
- Published
- 2024
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20. Increasing evolution, prevalence, and outbreaks for rift valley fever virus in the process of breaking geographical barriers.
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Wang Z, Pei S, Ye R, Chen J, Cheng N, Zhao M, Cao W, and Jia Z
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- Humans, Animals, Prevalence, Phylogeny, Rift Valley Fever epidemiology, Rift Valley fever virus genetics, Disease Outbreaks
- Abstract
Background: Rift valley fever (RVF) is listed as one of prioritized diseases by WHO. This study aims to describe RVF virus' landscape distribution globally, and to insight dynamics change of its evolution, prevalence, and outbreaks in the process of breaking geographical barriers., Methods: A systematic literature review and meta-analyses was conducted to estimate RVF prevalence by hosts using a random-effect model. Molecular clock-based phylogenetic analyses were performed to estimate RVF virus nucleotide substitution rates using nucleotide sequences in NCBI database. RVF virus prevalence, nucleotide substitution rates, and outbreaks were compared before and after breaking geographical barriers twice, respectively., Results: RVF virus was reported from 26 kinds of hosts covering 48 countries from 1930 to 2022. Since RVF broke geographical barriers, (1) nucleotide substitution rates significantly increased after firstly spreading out of Africa in 2000, (2) prevalence in humans significantly increased from 1.92 % (95 % CI: 0.86-3.25 %) to 3.03 % (95 % CI: 2.09-4.12 %) after it broke Sahara Desert geographical barriers in 1977, and to 5.24 % (95 % CI: 3.81-6.82 %) after 2000, (3) RVF outbreaks in humans and the number of wildlife hosts presented increasing trends. RVF virus spillover may exist between bats and humans, and accelerate viral substitution rates in humans. During outbreaks, the RVF virus substitution rates accelerated in humans. 60.00 % RVF outbreaks occurred 0-2 months after floods and (or) heavy rainfall., Conclusion: RVF has the increasing risk to cause pandemics, and global collaboration on "One Health" is needed to prevent potential pandemics., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024 Elsevier B.V. All rights reserved.)
- Published
- 2024
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21. Executive function measures of participants with mild cognitive impairment: Systematic review and meta-analysis of event-related potential studies.
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Che J, Cheng N, Jiang B, Liu Y, Liu H, Li Y, and Liu H
- Subjects
- Humans, Aged, Evoked Potentials physiology, Executive Function, Cognitive Dysfunction diagnosis
- Abstract
Objective: Objective measurements of executive functions using event-related potential (ERP) may be used as markers for differentiating healthy controls (HC) from patients with mild cognitive impairment (MCI). ERP is non-invasive, cost-effective, and affordable. Older adults with MCI demonstrate deteriorated executive function, serving as a potentially valid neurophysiological marker for identifying MCI. We aimed to review published ERP studies on executive function in older adults with MCI and summarize the performance differences by component between healthy older adults and older adults with MCI., Methods: Eight electronic databases (Web of Science, PubMed, ScienceDirect, American Psychological Association PsycNet, Cochrane Library, Scopus, Embase, and Ovid) were searched for the study. Articles published from January 1 to December 31, 2022, were considered for this review. A random-effects meta-analysis and between-study heterogeneity analysis were conducted using Comprehensive Meta-Analysis V3.0 software., Results: We identified 7829 articles of which 28 met the full inclusion criteria and were included in the systematic review and analyses. Our pooled analysis suggested that participants with MCI can be differentiated from HC by significant P200, P300, and N200 latencies. The P100 and P300 amplitudes were significantly smaller in participants with MCI when compared with those in the HCs, and the patients with MCI showed increased N200 amplitudes. Our findings provide new insights into potential electrophysiological biomarkers for diagnosing MCI., Competing Interests: Declaration of competing interest The authors declare that there are no financial or other relationships that might lead to a conflict of interest regarding the present article. All authors have reviewed the final version of the manuscript and have approved it for publication., (Copyright © 2024 Elsevier B.V. All rights reserved.)
- Published
- 2024
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22. Multifunctional polydopamine/hemin-cyclodextrin reinforced chitosan nanocomposite hydrogel: A synergistic platform for wound healing.
- Author
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Zhang XM, Zhang M, Xu NN, Zheng SJ, and Cheng N
- Subjects
- Humans, Nanogels, Hemin, Anti-Bacterial Agents pharmacology, Arginine, Hydrogels pharmacology, Nitric Oxide, Chitosan, Cyclodextrins, Bacterial Infections, Indoles, Polymers
- Abstract
Chronic cutaneous wounds present a significant challenge for healthcare providers globally, with the risk of bacterial infections emerging as a particularly concerning issue. There is an increasing need to employ a combination of diverse antibacterial strategies to address infections comprehensively in chronic wounds. This study introduces a highly efficient antibacterial platform that encapsulates the NO precursor (BNN6) into β-cyclodextrin-modified hemin-bearing polydopamine nanoparticles called NO/CHPDA. These nanoparticles are seamlessly integrated into a hydrogel composite comprised of L-arginine grafted chitosan (Arg-CS) and oxide dextrans (oDex). The amalgamation of photothermal therapy (PTT), chemodynamic therapy (CDT), and nitric oxide (NO) antibacterial strategies within the NO/CHPDA@Arg-CS/oDex nanocomposite hydrogel demonstrates a synergistic and highly effective capacity to eradicate bacteria and accelerate the wound healing process in vivo. Remarkably, this nanocomposite hydrogel maintains excellent biocompatibility and induces minimal side effects. The resulting nanocomposite hydrogel represents a promising therapeutic solution for treating bacterial infections in wound healing applications., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024. Published by Elsevier B.V.)
- Published
- 2024
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23. Distinguishing characteristics of pediatric patients with primary hyperoxaluria type 1 in PEDSnet.
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Tasian GE, Dickinson K, Park G, Marchesani N, Mittal A, Cheng N, Ching CB, Chu DI, Walton R, Yonekawa K, Gluck C, Muneeruddin S, Kan KM, DeFoor W, Rove K, and Forrest CB
- Subjects
- Adolescent, Humans, Child, Calcium Oxalate metabolism, Case-Control Studies, Nephrocalcinosis diagnosis, Kidney Failure, Chronic etiology, Kidney Calculi etiology, Kidney Calculi complications, Hyperoxaluria, Primary, Nephrolithiasis
- Abstract
Background: Primary hyperoxaluria type 1 (PH1) is an autosomal recessive inborn error of metabolism that causes oxalate deposition, leading to recurrent calcium oxalate kidney stones, chronic kidney disease and systemic oxalosis, which produces a broad range of serious life-threatening complications. Patients with PH1 have delayed diagnosis due to the rarity of the disease and the overlap with early-onset kidney stone disease not due to primary hyperoxaluria., Objective: The objective of this study was to determine the clinical features of individuals <21 years of age with PH1 that precede its diagnosis. We hypothesized that a parsimonious set of features could be identified that differentiate patients with PH1 from patients with non-primary hyperoxaluria-associated causes of early-onset kidney stone disease., Study Design: We determined the association between clinical characteristics and PH1 diagnosis in a case-control study conducted between 2009 and 2021 in PEDSnet, a clinical research network of eight US pediatric health systems. Each patient with genetically confirmed PH1 was matched by sex and PEDSnet institution to up to 4 control patients with kidney stones without PH of any type. We obtained patient characteristics and diagnostic test results occurring before to less than 6 months after study entrance from a centralized database query and from manual chart review. Differences were examined using standardized differences and multivariable regression., Results: The study sample included 37 patients with PH1 and 147 controls. Patients with PH1 were younger at diagnosis (median age of 3 vs 13.5 years); 75 % of children with PH1 were less than 8 years-old. Patients with PH1 were more likely to have combinations of nephrocalcinosis on ultrasound or CT (43 % vs 3 %), lower eGFR at diagnosis (median = 52 mL/min/1.73 m
2 vs 114 mL/min/1.73 m2 ), and have normal mobility. Patients with PH1 had higher proportion of calcium oxalate monohydrate kidney stones than controls (median = 100 % vs 10 %). There were no differences in diagnosis of failure to thrive, stone size, or echocardiography results., Conclusions: Children with PH1 are characterized by presentation before adolescence, nephrocalcinosis, decreased eGFR at diagnosis, and calcium oxalate monohydrate stone composition. If externally validated, these characteristics could facilitate earlier diagnosis and treatment of children with PH1., Competing Interests: Disclosures Gregory Tasian is on the Scientific Advisory Board of, is a consultant for, and receives research funding from NovoNordisk and Alnylam Pharmaceuticals. Akanksha Mittal and Nathan Cheng are employed by Alnylam Pharmaceuticals. Alnylam Pharmaceutics funded this study., (Copyright © 2023 Journal of Pediatric Urology Company. Published by Elsevier Ltd. All rights reserved.)- Published
- 2024
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24. A case report of RRBP1-ALK fusion gene-positive epithelioid inflammatory myofibroblastic sarcoma with collagenous stroma and good prognosis.
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Cheng N and Xue L
- Subjects
- Humans, Myofibroblasts, Prognosis, Receptor Protein-Tyrosine Kinases, Sarcoma diagnosis, Sarcoma genetics, Sarcoma surgery
- Abstract
Competing Interests: Declaration of competing interest All of the authors declare that they have no potential commercial confliflicts of interest relevant to this article.
- Published
- 2024
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25. A meta-analysis of prognostic factors for early recurrence in perihilar cholangiocarcinoma after curative-intent resection.
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Tian Y, Wen N, Li B, Lu J, Wang Y, Wang S, and Cheng N
- Subjects
- Humans, Prognosis, Treatment Outcome, Hepatectomy, Klatskin Tumor surgery, Klatskin Tumor pathology, Bile Duct Neoplasms surgery, Bile Duct Neoplasms pathology, Cholangiocarcinoma surgery, Cholangiocarcinoma pathology
- Abstract
Background: Perihilar cholangiocarcinoma (pCCA) is a type of cancer that has a high rate of recurrence after curative-intent surgery, with about half of all recurrences occurring within the first year. The primary aim of this study was to identify prognostic factors (PFs) for early recurrence (ER, within 12 months) after surgery., Methods: Systematic searching was conducted from database inception to September 28th, 2022, with duplicate independent review and data extraction. Data on eight predefined PFs were collected, and meta-analysis was performed on PFs for ER, summarized using forest plots., Results: The study enrolled 11 studies comprising 2877 patients. In the risk-of-bias assessment, seven studies were rated as low risk and four as moderate risk. More than 34.3% (95% confidence interval [CI], 26.1-42.5%) of the patients experienced ER after curative-intent pCCA resection. Of the PFs, vascular invasion (HR, 2.41; 95% CI, 1.47-3.95; OR, 1.60; 95% CI, 1.17-2.18), lymph node metastases (HR, 2.54; 95% CI, 1.92-3.37; OR, 4.26; 95% CI, 2.40-7.57), and R1 resection (HR, 3.27; 95% CI, 1.81-5.92; OR, 2.40; 95% CI, 1.36-4.22) were associated with an increased hazard for ER. The combined OR values also showed that tumor size, poor tumor differentiation, and perineural invasion were linked to an elevated risk of ER, but all of them had apparent heterogeneity., Conclusion: These findings from the review could be used to plan surveillance of ER and guide post-operative individualized management in pCCA. Furthermore, prospective studies are needed to explore more prognostic factors for ER of pCCA., Competing Interests: Declaration of competing interest We humbly submit our manuscript entitled “A Meta-Analysis of Prognostic Factors for Early Recurrence in Perihilar Cholangiocarcinoma After Curative-Intent Resection” to be considered for publication in EJSO. No conflict of interest exists in the submission of this manuscript, and manuscript is approved by all authors for publication., (© 2023 Published by Elsevier Ltd.)
- Published
- 2023
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26. Adsorption of Pd(II) ions by electrospun fibers with effective adsorption sites constructed by N, O atoms with a particular spatial configuration: Mechanism and practical applications.
- Author
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Li M, Wang M, Zhang L, Fan Y, Xu L, Ma Z, Wen Z, Wang H, and Cheng N
- Abstract
The separation and recovery of palladium from electronic waste (e-waste) are of great significance as they can alleviate environmental pollution and avoid resource loss. Herein, a novel nanofiber modified by 8-hydroxyquinoline (8-HQ-Nanofiber) with adsorption sites co-constructed by N and O atoms of hard bases was fabricated, which has good affinity properties for the Pd(II) ions belonging to soft acid in the leachate of e-waste. The adsorption mechanism of 8-HQ-Nanofiber for Pd(II) ions was revealed from the perspective of molecular level relied on a series of characterizations, such as FT-IR, ss-NMR, Zeta potential, XPS, BET, SEM and DFT. The adsorption of Pd(II) ions on 8-HQ-Nanofiber reached equilibrium within 30 min and the maximum uptake capacity was 281 mg/g at 318.15 K. The adsorption behavior of Pd(II) ions by 8-HQ-Nanofiber was described by the pseudo-second-order and Langmuir isotherm models. The 8-HQ-Nanofiber exhibited relatively good adsorption performance after 15 times of column adsorption. Finally, based on hard and soft acids and bases (HSAB) theory, a strategy to regulate the Lewis alkalinity of adsorption sites by specific spatial structures is proposed, which provides a new direction for the design of adsorption sites., Competing Interests: Declaration of Competing Interest All authors declare no conflicts of interest., (Copyright © 2023 Elsevier B.V. All rights reserved.)
- Published
- 2023
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27. Effects of Fe oxides and their redox cycling on Cd activity in paddy soils: A review.
- Author
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Gao Y, Tong H, Zhao Z, Cheng N, and Wu P
- Abstract
Cadmium (Cd) contamination of soils is a global problem, particularly in paddy soils. Fe oxides, as a key fraction of paddy soils, can significantly affect the environmental behavior of Cd, which is controlled by complicated environmental factors. Therefore, it is necessary to systematically collect and generalize relevant knowledge, which can provide more insight into the migration mechanism of Cd and a theoretical basis for future remediation of Cd contaminated paddy soils. This paper summarized that (1) Fe oxides influence Cd activity through adsorption, complexation, and coprecipitation during transformation; (2) compared with the flooded period, the activity of Cd during the drainage period is stronger in paddy soils, and the affinity of different Fe components for Cd was distinct; (3) Fe plaque reduced Cd activity but was associated with plant Fe
2+ nutritional status; (4) the physicochemical properties of paddy soils have the greatest impact on the interaction between Fe oxides and Cd, especially with pH and water fluctuations., Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2023 Elsevier B.V. All rights reserved.)- Published
- 2023
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28. Discovering the digital biomarker of hepatocellular carcinoma in serum with SERS-based biosensors and intelligence vision.
- Author
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Cheng N, Lou B, and Wang H
- Subjects
- Humans, Biomarkers, Neural Networks, Computer, Biomarkers, Tumor, Carcinoma, Hepatocellular diagnosis, Liver Neoplasms diagnosis, Biosensing Techniques
- Abstract
By its many virtues, non-biomarker-reliant molecular detection has recently shown bright prospects for cancer screening but its clinical application is hindered by the shortage of measurable criteria that are analogous to biomarkers. Here, we report a digital biomarker, as a new-concept serum biomarker, of hepatocellular carcinoma (HCC) found with SERS-based biosensors and a deep neural network "digital retina" for visualizing and explicitly defining spectral fingerprints. We validate the discovered digital biomarker (a collection of 10 characteristic peaks in the serum SERS spectra) with unsupervised clustering of spectra from an independent sample batch comprised normal individuals and HCC cases; the validation results show clustering accuracies of 95.71% and 100.00%, respectively. Furthermore, we find that the digital biomarker of HCC shares a few common peaks with three clinically applied serum biomarkers, which means it could convey essential biomolecular information similar to these biomarkers. Accordingly, we present an intelligent method for early HCC detection that leverages the digital biomarker with similar traits as biomarkers. Employing the digital biomarker, we could accurately stratify HCC, hepatitis B, and normal populations with linear classifiers, exhibiting accuracies over 92% and area under the receiver operating curve values above 0.93. It is anticipated that this non-biomarker-reliant molecular detection method will facilitate mass cancer screening., Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2023 Elsevier B.V. All rights reserved.)
- Published
- 2023
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29. Bilevel positive airway pressure for gastroscopy with sedation in patients at risk of hypoxemia: A prospective randomized controlled study.
- Author
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Wang S, Shen N, Wang Y, Cheng N, Li L, Pan S, Aisan T, Hei Z, Luo G, and Chen C
- Subjects
- Humans, Gastroscopy adverse effects, Overweight complications, Prospective Studies, Hypoxia diagnosis, Hypoxia epidemiology, Hypoxia etiology, Continuous Positive Airway Pressure adverse effects, Sleep Apnea, Obstructive diagnosis, Sleep Apnea, Obstructive therapy, Sleep Apnea, Obstructive complications
- Abstract
Study Objective: Hypoxemia is one of the most frequent adverse events during sedated gastroscopy, and there is still no effective means to prevent and cure it. Therefore, we conducted this randomized trial to confirm our hypothesis that, compared with the nasal cannula group, bilevel positive airway pressure (BPAP) would decrease the incidence of hypoxemia in patients with obstructive sleep apnea (OSA) or overweight status undergoing gastroscopy., Design: In a single-center, prospective, randomized controlled clinical trial, 80 patients aged 18-65 years and with OSA or overweight status who underwent gastroscopy with sedation were randomly assigned to two groups: the nasal cannula and BPAP groups. The primary outcome was the incidence of hypoxemia (75% < peripheral oxygen saturation [SpO2] < 90% for >5 sand <60 s)., Main Results: Compared to the nasal cannula group, BPAP therapy significantly decreased the incidence of hypoxemia from 40.0% to 2.5% (absolute risk difference [ARD], 37.5% [95% confidence interval (CI), 21.6 to 53.4], p < 0.001), decreased subclinical respiratory depression from 52.5% to 22.5% (ARD, 30.0% [95% CI, 9.8 to 50.2], p = 0.006), and decreased severe hypoxemia from 17.5% to 0% (ARD, 17.5% [95% CI, 5.7 to 29.3], p = 0.006). The BPAP intervention also decreased the total propofol dosage and operation time and improved anesthesiologist's satisfaction., Conclusion: BPAP therapy significantly decreased the incidence of hypoxemia in patients with OSA or overweight status who underwent gastroscopy., Competing Interests: Declaration of Competing Interest The authors declare no conflicts of interest., (Copyright © 2022. Published by Elsevier Inc.)
- Published
- 2023
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30. Translation and validation study of the Chinese version of the service user technology acceptability questionnaire.
- Author
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Cheng N, Zhao Y, Li X, He X, and Wang A
- Abstract
Objective: This study aimed to assess the reliability and validity of the translated Chinese version of the Service User Technology Acceptability Questionnaire (C-SUTAQ)., Methods: Patients with cancer ( n = 554) from a tertiary hospital in China completed the C-SUTAQ. Item analysis, content and construct validity test, internal consistency test, and test-retest reliability analysis were conducted on the instrument to test its applicability., Results: The critical ratio of each item of the C-SUTAQ ranged from 11.869 to 29.656; the correlation of each item and subscale ranged from 0.736 to 0.929. The Cronbach's α value for each subscale ranged from 0.659 to 0.941, and the test-retest reliability ranged from 0.859 to 0.966. The content validity index of the scale level and the item level content validity index of the instrument were both 1. Exploratory factor analysis indicated it was reasonable that the C-SUTAQ consists of six subscales after rotation. Confirmatory factor analysis demonstrated good construct validity (χ
2 /df = 2.459, comparative fit index = 0.922, incremental fit index = 0.907, standardized root mean square residual = 0.060, root-mean-square error of approximation = 0.073, goodness of fit index = 0.875, normed fit index = 0.876., Conclusions: The C-SUTAQ had good reliability and validity and may be useful to assess Chinese patients' acceptability of telecare. However, the small sample size limited generalization and there is a need to expand the sample to include persons with other diseases. Further studies are required using the translated questionnaire., (© 2023 The Author(s).)- Published
- 2023
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31. Developmental cascades of behavior problems and cognitive ability from toddlerhood to middle childhood: A 9-year longitudinal study.
- Author
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Zhang Q, Liu S, Wang Z, and Cheng N
- Subjects
- Child, Infant, Humans, Child, Preschool, Longitudinal Studies, Child Development, Parents, Cognition, Problem Behavior psychology, Child Behavior Disorders epidemiology
- Abstract
Little is known about the direction, ordering, and uniqueness of longitudinal associations between behavior problems and cognitive ability, from toddlerhood to middle childhood. A developmental cascade model was tested in the present study to examine the transactional processes in 103 Chinese children at the ages of 1, 2, 7, and 9 years. Behavior problems were assessed using the maternal reported Infant-Toddler Social and Emotional Assessment at the ages of 1, 2 and parental reported Children Behavior Checklist at the ages of 7, 9. Cognitive ability was measured using Bayley Scales of Infant and Toddler Development at the ages of 1, 2 and Wechsler Intelligence Scale for Children at the ages of 7, 9. The results revealed the stability of behavior problems and cognitive ability from age 1 to age 9 years and concurrent associations between externalizing and internalizing problems. Unique longitudinal associations were identified between (1) age 1 cognitive ability and age 2 internalizing problems, (2) age 2 externalizing problems and age 7 internalizing problems, (3) age 2 externalizing problems and age 7 cognitive ability, (4) age 7 cognitive ability and age 9 externalizing problems. The results indicated essential targets for future interventions aimed at reducing children's behavior problems at 2 years old and promoting cognitive ability at 1 year old and 7 years old., Competing Interests: Declaration of competing interest None declared., (Copyright © 2023 Elsevier B.V. All rights reserved.)
- Published
- 2023
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32. Multifunctional chitosan/alginate hydrogel incorporated with bioactive glass nanocomposites enabling photothermal and nitric oxide release activities for bacteria-infected wound healing.
- Author
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Zhang M, Fan Z, Zhang J, Yang Y, Huang C, Zhang W, Ding D, Liu G, and Cheng N
- Subjects
- Mice, Animals, Hydrogels pharmacology, Hydrogels chemistry, Nitric Oxide, Alginates chemistry, Nanogels, Staphylococcus aureus, Wound Healing, Anti-Bacterial Agents pharmacology, Anti-Bacterial Agents chemistry, Chitosan chemistry, Nanocomposites chemistry, Bacterial Infections therapy
- Abstract
It is highly desirable to develop novel multifunctional wound dressing materials capable of delivering active molecules capable of resolving bacterial infections and replenishment of appropriate growth factors for bacteria-infected wound healing. Polysaccharides have numerous biomedical benefits and have been widely used to construct biomaterial scaffolds. Herein, multifunctional chitosan/alginate hydrogel decorated with β-cyclodextrin (β-CD) modified polydopamine (PDA)-bioactive glass (BG) nanoparticles (NPs) integrating photothermal performance and nitric-oxide release activities for the treatment of bacterially infected wounds is presented. As the NO precursor N,N'-di-sec-butyl-N,N'-dinitroso-1,4-phenylenediamine (BNN6) encapsulated into the hydrophobic cavity of β-CD on the PDA-coated BG NPs, the resultant NO@CD-PDA/BG NPs, are imparted with the feature of NIR triggered NO release and desired PTT/NO synergetic antibacterial effects. Furthermore, the release of NO, Ca, and Si ions from the NO@CD-PDA/BG NPs, has the benefit of regulating inflammation, promoting fibroblast proliferation, and stimulating angiogenesis. Besides, the chitosan/alginate hydrogel scaffolds provided a suitable microenvironment to accelerate wound healing. By applying the multifunctional chitosan/alginate nanocomposite hydrogel to S. aureus-infected full-thickness skin defect mouse model, the authors demonstrated that chitosan/alginate nanocomposite hydrogel has multiple functions in preventing bacterial infections, accelerating angiogenesis and wound regeneration, indicating promising application in wound healing., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2023 Elsevier B.V. All rights reserved.)
- Published
- 2023
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33. Liver specific disruption of Glutaredoxin 3 leads to iron accumulation and impaired cellular iron homeostasis.
- Author
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Cheng N, Donelson J, Breton G, and Nakata PA
- Subjects
- Animals, Mice, Homeostasis, Liver metabolism, Iron metabolism, Mammals metabolism, Glutaredoxins genetics, Glutaredoxins metabolism, Abdomen
- Abstract
The role mammalian glutaredoxin 3 (Grx3) plays in iron homeostasis is poorly understood. Here we report the generation and characterization of a Grx3 liver-specific knockout (LKO) mouse strain. Grx3 LKO and WT mice had similar growth however, the LKO mice had elevated iron concentration and ROS production leading to impaired liver function and altered cytosolic and nuclear Fe-S cluster assembly. The expression of hepatic FTH1 and other iron homeostasis genes appeared to correlate with the elevation in iron concentration. Interestingly, this increase in hepatic FTH1 showed an inverse correlation with the abundance of autophagy pathway proteins. These findings suggest a crucial role for Grx3 in regulating hepatocyte iron homeostasis by controlling cellular storage protein turnover and recycling via the autophagy pathway., Competing Interests: Declaration of competing interest The authors have nothing to disclose., (Copyright © 2023 Elsevier Inc. All rights reserved.)
- Published
- 2023
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34. Predictive and estimation model of Cd, Ni, and Zn bioaccumulations in maize based on diffusive gradients in thin films.
- Author
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Chen R, Mu X, Liu J, Cheng N, Shi R, Hu M, Chen Z, and Wang H
- Subjects
- Humans, Cadmium analysis, Zea mays, Bioaccumulation, Environmental Monitoring methods, Zinc analysis, Biological Availability, Soil, Soil Pollutants analysis, Metals, Heavy analysis
- Abstract
Consumption of maize contaminated with heavy metals such as cadmium, nickel, and zinc threaten human health. For situ measuring the bioavailability of heavy metals, the diffusive gradients in thin films (DGT) is superior to other traditional methods. It is also important to find a method for predicting heavy metal enrichment in maize based on the DGT method. In this study, field surveys were conducted in the main maize producing areas of Tianjin, China. Heavy metal concentrations in maize grains were predicted by coupling DGT with traditional extraction methods. The results show that coupling DGT with soil solution can significantly improve prediction accuracy (Cd-R
2 = 0.908, Ni-R2 = 0.903, and Zn-R2 = 0.904). This indicated that DGT and soil solution were feasible predictors of heavy metal concentration in maize. The DGT induced fluxes in soil/sediment (DIFS) model was used to simulate the uptake process of heavy metals by DGT, and better reveal the desorption processes of heavy metals in soils. DIFS-based desorption processes were employed to characterize the resupply ability of heavy metals in soils. The coupling of DGT and DIFS parameters provided the best prediction accuracy in this study (Cd-R2 = 0.920, Ni-R2 = 0.928, and Zn-R2 = 0.908). Predictions are slightly weaker for Zn than for Cd and Ni (Cd-P < 0.01, Ni-P < 0.01, and Zn-P < 0.05). The reason is that the average resupply type of Cd and Ni in soil is partially sustained while Zn is resupplied via diffusion only. The desorption rate k- 1 can excellently improve the prediction accuracy of DGT, which avoids the disadvantage that soil solution does not consider desorption. The coupling of DGT and DIFS parameters provides an accurate and reliable method for predicting heavy metal enrichment in maize., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2022 Elsevier B.V. All rights reserved.)- Published
- 2023
- Full Text
- View/download PDF
35. Prediction of lung cancer metastasis by gene expression.
- Author
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Cheng N, Liu J, Chen C, Zheng T, Li C, and Huang J
- Subjects
- Humans, Neural Networks, Computer, Gene Expression, Lung Neoplasms genetics
- Abstract
Tumor metastasis is the main cause of death in cancer patients. Early prediction of tumor metastasis can allow for timely intervention. At present, research on tumor metastasis mainly focuses on manual diagnosis by imaging or diagnosis by computational methods. With the deterioration of the tumor, gene expression levels in blood change greatly. It is feasible to measure the transcripts of key genes to predict whether cancer will metastasize. Therefore, in this paper, we obtained gene expression data from 226 patients from TCGA. These data included 239,322 transcripts. Background screening and LASSO analysis were used to select 31 transcripts as features. Finally, a deep neural network (DNN) was used to determine whether or not lung cancer would metastasize. We compared our methods with several other methods and found that our method achieved the best precision. In addition, in a previous study, we identified 7 genes that play a vital role in lung cancer. We added those gene transcripts into the DNN and found that the AUC and AUPR of the model were increased., Competing Interests: Declaration of competing interest The authors declare that they have no competing interests., (Copyright © 2023 The Authors. Published by Elsevier Ltd.. All rights reserved.)
- Published
- 2023
- Full Text
- View/download PDF
36. Optimization of the biochemical genetics laboratory rotation using a multidesign approach to curriculum.
- Author
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Bosfield K, Albert J, Cheng N, Swaringer T, Cusmano-Ozog K, and Regier DS
- Subjects
- Infant, Newborn, Humans, Rotation, Molecular Biology, Curriculum, Learning
- Abstract
Purpose: A biochemical genetics laboratory rotation is required for multiple genetics training programs. Traditionally, this rotation has been observational with experience being dependent upon cases released and availability of laboratory director(s), resulting in inconsistent learning opportunities. This curriculum was created to standardize the learning experience., Methods: The revised rotation provides multiple teaching modalities including small group didactic sessions (flipped classroom model), case-based sessions, and hands-on laboratory experience. Trainees prepare a presentation (learning by teaching) and discuss the differential diagnosis, metabolic pathway, newborn screening, treatment, and molecular characteristics of the gene(s) implicated. Learner assessment is performed using pre- and post-tests, learner evaluations, and instructor feedback., Results: Pre- and post-test scores were significantly different (P < .001) for learners from all programs. Participants found the course to be effective, increased their learning, and allowed them to interact with metabolic testing results in helpful ways. Faculty appreciated the use of prerecorded lectures and additional time for in-depth teaching on interesting cases., Conclusion: The revised rotation has been well received by trainees and faculty. Interaction of learners with the laboratory staff was optimized by ensuring all parties were prepared to teach and learn. Future directions include expanding the program to include remote learners from other centers., Competing Interests: Conflict of Interest The authors declare no conflicts of interest., (Copyright © 2022 American College of Medical Genetics and Genomics. Published by Elsevier Inc. All rights reserved.)
- Published
- 2023
- Full Text
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37. Degradation of organic pollutants from water by biochar-assisted advanced oxidation processes: Mechanisms and applications.
- Author
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Jiang T, Wang B, Gao B, Cheng N, Feng Q, Chen M, and Wang S
- Subjects
- Water, Charcoal chemistry, Environmental Pollutants, Environmental Restoration and Remediation, Water Pollutants, Chemical analysis
- Abstract
Biochar has shown large potential in environmental remediation because of its low cost, large specific surface area, porosity, and high conductivity. Biochar-assisted advanced oxidation processes (BC-AOPs) have recently attracted increasing attention to the remediation of organic pollutants from water. However, the effects of biochar properties on catalytic performance need to be further explored. There are still controversial and knowledge gaps in the reaction mechanisms of BC-AOPs, and regeneration methods of biochar catalysts are lacking. Therefore, it is necessary to systematically review the latest research progress of BC-AOPs in the treatment of organic pollutants in water. In this review, first of all, the effects of biochar properties on catalytic activity are summarized. The biochar properties can be optimized by changing the feedstocks, preparation conditions, and modification methods. Secondly, the catalytic active sites and degradation mechanisms are explored in different BC-AOPs. Different influencing factors on the degradation process are analyzed. Then, the applications of BC-AOPs in environmental remediation and regeneration methods of different biochar catalysts are summarized. Finally, the development prospects and challenges of biochar catalysts in environmental remediation are put forward, and some suggestions for future development are proposed., Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2022 Elsevier B.V. All rights reserved.)
- Published
- 2023
- Full Text
- View/download PDF
38. Examining post-concussion white matter change in a pediatric sample.
- Author
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Takagi M, Ball G, Babl FE, Anderson N, Chen J, Clarke C, Davis GA, Hearps SJC, Pascouau R, Cheng N, Rausa VC, Seal M, Shapiro JS, and Anderson V
- Subjects
- Humans, Child, Diffusion, Neuroimaging, White Matter diagnostic imaging, Brain Concussion diagnostic imaging, Post-Concussion Syndrome diagnostic imaging
- Abstract
Diffusion-Weight Imaging (DWI) is increasingly used to explore a range of outcomes in pediatric concussion, particularly the neurobiological underpinnings of symptom recovery. However, the DWI findings within the broader pediatric concussion literature are mixed, which can largely be explained by methodological heterogeneity. To address some of these limitations, the aim of the present study was to utilize internationally- recognized criteria for concussion and a consistent imaging timepoint to conduct a comprehensive, multi-parametric survey of white matter microstructure after concussion. Forty-three children presenting with concussion to the emergency department of a tertiary level pediatric hospital underwent neuroimaging and were classified as either normally recovering (n = 27), or delayed recovering (n = 14) based on their post-concussion symptoms at 2 weeks post-injury.We combined multiple DWI metrics across four modeling approaches using Linked Independent Component Analysis (LICA) to extract several independent patterns of covariation in tissue microstructure present in the study cohort. Our analysis did not identify significant differences between the symptomatic and asymptomatic groups and no component significantly predicted delayed recovery. If white matter microstructure changes are implicated in delayed recovery from concussion, these findings, alongside previous work, suggest that current diffusion techniques are insufficient to detect those changes at this time., Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2023. Published by Elsevier Inc.)
- Published
- 2023
- Full Text
- View/download PDF
39. Hybrid Ag nanoparticles/polyoxometalate-polydopamine nano-flowers loaded chitosan/gelatin hydrogel scaffolds with synergistic photothermal/chemodynamic/Ag + anti-bacterial action for accelerated wound healing.
- Author
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Zhou K, Zhang Z, Xue J, Shang J, Ding D, Zhang W, Liu Z, Yan F, and Cheng N
- Subjects
- Humans, Hydrogels pharmacology, Gelatin pharmacology, Staphylococcus aureus, Escherichia coli, Silver pharmacology, Wound Healing, Anti-Bacterial Agents pharmacology, Anti-Bacterial Agents therapeutic use, Bacteria, Chitosan pharmacology, Metal Nanoparticles, Bacterial Infections drug therapy
- Abstract
Bacterial infections significantly slow the wound healing process, thus severely threatening human health. Furthermore, traditional antibiotics may promote the development of multidrug-resistant bacteria. Therefore, developing novel bactericides and therapeutic strategies for bacterial infections is important to enhance wound healing. Herein, a three-in-one bactericidal flower-like nanocomposite was assembled using Ag nanoparticles/phosphotungstic acid-polydopamine nano-flowers (AgNPs/POM-PDA). The nanocomposite exhibited photothermal therapy (PTT) when exposed to NIR light via photothermal conversion by PDA. The resultant photothermal effect accelerated and controlled the Ag
+ released from AgNPs. The chemodynamic therapy (CDT) was obtained via POM catalytic Fenton-like reaction. The combined PTT/CDT/Ag+ treatment achieved excellent synergistic anti-bacterial activity against both gram-negative E. coli and gram-positive S. aureus. A multifunctional wound dressing was then obtained by embedding the AgNPs/POM-PDA flower-like nanocomposite into the chitosan (CS)/gelatin (GE) biocomposite hydrogel. The synergy of AgNPs/POM-PDA nanocomposites and CS/GE hydrogel remarkably accelerated wound healing in vivo due to the excellent biocompatibility, hydroabsorptivity, and breathability of the hydrogel. In this study, a multifunctional agent was developed to synergistically combat bacterial infections and accelerate wound healing., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2022 Elsevier B.V. All rights reserved.)- Published
- 2022
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40. Human-induced pluripotent stem cell line (FDHSi001-A) derived from a patient with a CGG repeat expansion in the 5'UTR of GIPC1.
- Author
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Jiao K, Yue D, Gu X, Cheng N, Chang X, Zhong H, Huan X, Su M, Zhou Y, Luo S, Zhao C, Xi J, and Zhu W
- Subjects
- Humans, 5' Untranslated Regions, Leukocytes, Mononuclear metabolism, Mutation, Adaptor Proteins, Signal Transducing genetics, Induced Pluripotent Stem Cells metabolism, Muscular Dystrophies genetics
- Abstract
Oculopharyngodistal myopathy (OPDM) is a late-onset degenerative muscle disorder characterized by ptosis and weakening of the facial, pharyngeal, and distal limb muscles. Our study reprogrammed human-induced pluripotent stem cells (iPSC) from the peripheral blood mononuclear cells (PBMCs) of a patient with a CGG repeat expansion in the 5'UTR of GIPC1 gene that co-segregated with the disease. The generated iPSCs express the pluripotent cell markers with no mycoplasma contamination. Besides, it showed normal karyotypes and the capacity to differentiate into three germ layers. We also identified that it had the same specific mutation as the patient did., Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2022 The Authors. Published by Elsevier B.V. All rights reserved.)
- Published
- 2022
- Full Text
- View/download PDF
41. Functional, structural, and molecular characterizations of the leukemogenic driver MEF2D-HNRNPUL1 fusion.
- Author
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Zhang M, Zhang H, Li Z, Bai L, Wang Q, Li J, Jiang M, Xue Q, Cheng N, Zhang W, Mao D, Chen Z, Huang J, Meng G, Chen Z, and Chen SJ
- Subjects
- Animals, Chromatin, DNA metabolism, Histone Deacetylase Inhibitors, MEF2 Transcription Factors genetics, MEF2 Transcription Factors metabolism, Mice, Panobinostat, RNA, Oncogene Proteins, Fusion genetics, Oncogene Proteins, Fusion metabolism, Precursor Cell Lymphoblastic Leukemia-Lymphoma genetics
- Abstract
Recurrent MEF2D fusions with poor prognosis have been identified in B-cell precursor ALL (BCP-ALL). The molecular mechanisms underlying the pathogenic function of MEF2D fusions are poorly understood. Here, we show that MEF2D-HNRNPUL1 (MH) knock-in mice developed a progressive disease from impaired B-cell development at the pre-pro-B stage to pre-leukemia over 10 to 12 months. When cooperating with NRASG12D, MH drove an outbreak of BCP-ALL, with a more aggressive phenotype than the NRASG12D-induced leukemia. RNA-sequencing identified key networks involved in disease mechanisms. In chromatin immunoprecipitation-sequencing experiments, MH acquired increased chromatin-binding ability, mostly through MEF2D-responsive element (MRE) motifs in target genes, compared with wild-type MEF2D. Using X-ray crystallography, the MEF2D-MRE complex was characterized in atomic resolution, whereas disrupting the MH-DNA interaction alleviated the aberrant target gene expression and the B-cell differentiation arrest. The C-terminal moiety (HNRNPUL1 part) of MH was proven to contribute to the fusion protein's trans-regulatory activity, cofactor recruitment, and homodimerization. Furthermore, targeting MH-driven transactivation of the HDAC family by using the histone deacetylase inhibitor panobinostat in combination with chemotherapy improved the overall survival of MH/NRASG12D BCP-ALL mice. Altogether, these results not only highlight MH as an important driver in leukemogenesis but also provoke targeted intervention against BCP-ALL with MEF2D fusions., (© 2022 by The American Society of Hematology.)
- Published
- 2022
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- View/download PDF
42. A composite scaffold fabricated with an acellular matrix and biodegradable polyurethane for the in vivo regeneration of pig bile duct defects.
- Author
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Jiang X, Xiong X, Lin Y, Lu Y, Cheng J, Cheng N, and Zhang J
- Subjects
- Animals, Collagen, Regeneration, Swine, Swine, Miniature, Tissue Engineering methods, Tissue Scaffolds, Bile Ducts, Polyurethanes pharmacology
- Abstract
Bile duct regeneration is urgently needed to restore the normal function of the damaged biliary system. In this study, an artificial bile duct (ABD) was fabricated for extrahepatic bile duct regeneration based on biodegradable polyurethane (BPU) and ureter acellular matrix (UAM) to endow it with favorable biocompatibility and eliminate bile leakage during in vivo bile duct regeneration. The mechanical properties, in vitro simulation of bile flow and cytocompatibility of BPU-UAM ABD were evaluated in vitro, and surgical implantation in the biliary defect site in minipigs was implemented to reveal the in vivo degradation of BPU-UAM and regeneration of the new bile duct. The results indicated that BPU-UAM ABD with a mechanical strength of 11.9 MPa has excellent cytocompatibility to support 3T3 fibroblast survival and proliferation in extraction medium and on the scaffolds. The in vivo implantation of BPU-UAM ABD revealed the change of collagen content throughout the new bile duct regeneration. Biliary epithelial cells were observed at day 70, and continuous biliary epithelial layer formation was observed after 100 days of implantation. Altogether, the BPU-UAM ABD fabricated in this study possesses excellent properties for application study in the regeneration of bile duct. STATEMENT OF SIGNIFICANCE: Extrahepatic bile duct defects carry considerable morbidity and mortality because they are the only pathway for bile to go down into the intestinal tract. At present, no artificial bile duct can promote biliary regeneration. In this study, BPU-UAM ABD was built based on biodegradable polyurethane and ureter acellular matrix to form a continuous compact layer of polyurethane in the internal wall of UAM and avoid bile leakage and experimental failure during in vivo implantation. Our work verified the effectiveness of the synthesized biodegradable polyurethane emulsion-modified urethral acellular matrix in bile regeneration and continuous biliary epithelial layer formation. This study provided a new approach for the curing of bile duct defects and inducing new bile tissue formation., Competing Interests: Declaration of Competing Interest The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (Copyright © 2022. Published by Elsevier Ltd.)
- Published
- 2022
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43. Application of biochar immobilized microorganisms for pollutants removal from wastewater: A review.
- Author
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Li R, Wang B, Niu A, Cheng N, Chen M, Zhang X, Yu Z, and Wang S
- Subjects
- Adsorption, Charcoal, Wastewater, Environmental Pollutants, Water Pollutants, Chemical
- Abstract
Microbial immobilization technology (MIT) has been rapidly developed and used to remove pollutants from water/wastewater in recent years, owing to its high stability, rapid reaction rate, and high activity. Microbial immobilization carrier with low cost and high removal efficiency is the key of MIT. Biochar is considered to be an efficient carrier for microbial immobilization because of its high porosity and good adsorption effect, which can provide a habitat for microorganisms. The use of biochar immobilized microorganisms to treat different pollutants in wastewater is a promising treatment method. Compared with the other biological treatment technology, biochar immobilized microorganisms can improve microbial abundance, repeated utilization ratio, microbial metabolic capacity, etc. However, current research on this method is still in its infancy. Little attention has been paid to the interaction mechanisms between biochar and microorganisms, and many studies are only carried out in the laboratory. There are still problems such as difficult recovery after use and secondary pollution caused by residual pollutants after biochar adsorption, which need further clarification. To have comprehensive digestion and an in-depth understanding of biochar immobilized microorganisms technology in wastewater treatment, the wastewater treatment methods based on biochar are firstly summarized in this review. Then the mechanisms of immobilized microorganisms were explored, and the applications of biochar immobilized microorganisms in wastewater were systematically reviewed. Finally, suggestions and perspectives for future research and practical application are put forward., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2022 Elsevier B.V. All rights reserved.)
- Published
- 2022
- Full Text
- View/download PDF
44. Comparative study of Pd@Pt nanozyme improved colorimetric N-ELISA for the paper-output portable detection of Staphylococcus aureus.
- Author
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Wang X, Zhang M, Pang X, Huang K, Yao Z, Mei X, and Cheng N
- Subjects
- Colorimetry, Enzyme-Linked Immunosorbent Assay, Horseradish Peroxidase, Humans, Nanostructures, Palladium, Platinum, Staphylococcus aureus, Metal Nanoparticles, Staphylococcal Infections
- Abstract
Staphylococcus aureus is a frequent pathogenic bacterium that has a significant detrimental influence on the health of the human body. Therefore, developing a practical and portable detection platform is critical to ensuring food safety. Nanozymes are a kind of engineered nanomaterials with superior enzyme-like activities, providing infinite possibilities for the development of highly sensitive analytical assays. In this study, mesoporous core-shell palladium@platinum (Pd@Pt) nanozymes were synthesized and then applied as a signal amplifier in Staphylococcus aureus colorimetric immunoassay. At the same time, a careful comparative study of the catalytic performance with natural horseradish peroxidase (HRP), Pd@Pt nanozymes and their complexes Pd@Pt-HRP (HRP coupling with Pd@Pt nanozymes) were firstly performed, as well as clever using a colorimeter to achieve portable signal output. Pd@Pt-HRP bioprobes enable remarkable peroxidase-like catalytic activity, resulting in the highest sensitivity with a limit of detection (LOD) improved from 1 × 10
5 to 1 × 103 CFU/mL. In all, this work conducted a valuable comparative study and presented an improved strategy for the portable detection of pathogenic bacteria, which was expected to be used in a wide range of applications in food safety regulation and biomedicals arenas., (Copyright © 2022 Elsevier B.V. All rights reserved.)- Published
- 2022
- Full Text
- View/download PDF
45. Rapid detection of hydrogen sulfide in vegetables and monosodium glutamate based on perylene supramolecular aggregates using an indicator displacement assays strategy.
- Author
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Gao X, Li Y, Zhang J, Cheng N, Zhang L, Zhang Z, and Yao Z
- Subjects
- Fluorescent Dyes chemistry, Humans, Sodium Glutamate, Vegetables, Hydrogen Sulfide, Perylene chemistry
- Abstract
Hydrogen sulfide (H
2 S) has been clearly identified as a hazardous chemical pollutant that seriously affects food safety and human health. In order to develop a rapid, accurate and efficient H2 S tracking method, this work propose a strategy based on indicator displacement assays (IDA). A water-soluble histidine-modified perylene diimide fluorescent probe was synthesized by a one-step method, and the probe can form supramolecular aggregates in the presence of Cd2+ . There will be a fluorescence transformation of probe, caused by the change of the state of aggregation and adjusted by various concentration of S2- , which can achieve the fluorescence detection of S2- . The limit of detection is as low as 0.41 µmol/L. Particularly worth mentioning is that the probe in this work can be recycled for at least 5 times, which is environmentally friendly and economical. Finally, this method was applied in three kinds of vegetables and monosodium glutamate samples., Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2022 Elsevier B.V. All rights reserved.)- Published
- 2022
- Full Text
- View/download PDF
46. Regulation of growth, invasion and metabolism of breast ductal carcinoma through CCL2/CCR2 signaling interactions with MET receptor tyrosine kinases.
- Author
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Acevedo DS, Fang WB, Rao V, Penmetcha V, Leyva H, Acosta G, Cote P, Brodine R, Swerdlow R, Tan L, Lorenzi PL, and Cheng N
- Subjects
- Animals, Cell Line, Tumor, Disease Progression, Female, Humans, Neoplasm Recurrence, Local metabolism, Neoplasm Recurrence, Local pathology, Breast Neoplasms metabolism, Breast Neoplasms pathology, Carcinoma, Ductal, Breast metabolism, Carcinoma, Ductal, Breast pathology, Carcinoma, Intraductal, Noninfiltrating metabolism, Carcinoma, Intraductal, Noninfiltrating pathology, Chemokine CCL2 genetics, Chemokine CCL2 metabolism, Proto-Oncogene Proteins c-met metabolism, Receptors, CCR2 metabolism
- Abstract
With over 60,000 cases diagnosed annually in the US, ductal carcinoma in situ (DCIS) is the most prevalent form of early-stage breast cancer. Because many DCIS cases never progress to invasive ductal carcinomas (IDC), overtreatment remains a significant problem. Up to 20% patients experience disease recurrence, indicating that standard treatments do not effectively treat DCIS for a subset of patients. By understanding the mechanisms of DCIS progression, we can develop new treatment strategies better tailored to patients. The chemokine CCL2 and its receptor CCR2 are known to regulate macrophage recruitment during inflammation and cancer progression. Recent studies indicate that increased CCL2/CCR2 signaling in breast epithelial cells enhance formation of IDC. Here, we characterized the molecular mechanisms important for CCL2/CCR2-mediated DCIS progression. Phospho-protein array profiling revealed that CCL2 stimulated phosphorylation of MET receptor tyrosine kinases in breast cancer cells. Co-immunoprecipitation and proximity ligation assays demonstrated that CCL2-induced MET activity depended on interactions with CCR2 and SRC. Extracellular flux analysis and biochemical assays revealed that CCL2/CCR2 signaling in breast cancer cells enhanced glycolytic enzyme expression and activity. CRISPR knockout and pharmacologic inhibition of MET revealed that CCL2/CCR2-induced breast cancer cell proliferation, survival, migration and glycolysis through MET-dependent mechanisms. In animals, MET inhibitors blocked CCR2-mediated DCIS progression and metabolism. CCR2 and MET were significantly co-expressed in patient DCIS and IDC tissues. In summary, MET receptor activity is an important mechanism for CCL2/CCR2-mediated progression and metabolism of early-stage breast cancer, with important clinical implications., (Copyright © 2022. Published by Elsevier Inc.)
- Published
- 2022
- Full Text
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47. Release characteristics of phosphate from ball-milled biochar and its potential effects on plant growth.
- Author
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Zhao Z, Wang B, Zhang X, Xu H, Cheng N, Feng Q, Zhao R, Gao Y, and Wei M
- Subjects
- Adsorption, Charcoal, Phosphorus, Phosphates, Water Pollutants, Chemical analysis
- Abstract
Ball-milled biochar could potentially supply phosphorus, an essential element for plant growth. To realize resource reuse and phosphorus recovery, three feedstocks (rice straw, distillers grains, and Eupatorium adenophorum) were used to prepare ball-milled biochar to evaluate its release characteristics of phosphorus and potential effects on germination and growth. The results showed that the phosphate release performance of ball-milled distillers grains biochar (DM) at 300 and 600 °C was better than that of other biochars ball-milled for 12 h. The DM prepared at 600 °C and incubated for 12 (DM-12) or 24 h (DM-24) had the best phosphate release capacity. The solution with pH 3.0 was beneficial to the release of phosphate from DM-12. The pseudo-second-order model could better fit the phosphate release of DM-12. A germination and seedling growth experiment suggested that adding 2.5 wt% DM-12 was beneficial to the height of mung beans. This study shows that DM-12 can be used as a slow-release fertilizer for the growth of mung beans, which provides a new way for resource utilization of distillers grains and phosphorus-rich biochar., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2022 Elsevier B.V. All rights reserved.)
- Published
- 2022
- Full Text
- View/download PDF
48. On the Eve of Integration: Community and Affiliated Residency Programs Pave the Way Towards the Assimilation of Osteopathic Surgery Residents.
- Author
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Boyev A, Burke R, Cheng N, Falcone JL, and Lindsey TG 2nd
- Subjects
- Cross-Sectional Studies, Education, Medical, Graduate, Humans, Retrospective Studies, United States, Internship and Residency, Osteopathic Medicine education
- Abstract
Objective: The 2020 match integrated former osteopathic and allopathic residency programs under single Graduate Medical Education accreditation. We describe the composition of general surgery residency programs prior to the 2020 integration and provide a baseline to monitor future progress., Design: Retrospective, cross-sectional data provided by the Association of American Medical Colleges for the 2018 academic year were analyzed. Descriptive analyses were used to summarize the characteristics of residents by program type and program location. Logistic regression was used to estimate factors associated with the presence of osteopathic (DO) residents. An alpha of 0.05 defined statistical significance., Setting: Data were collected and analyzed at a United States osteopathic medical school., Participants: All civilian surgery residencies that approved the 2018 Program Survey., Results: Out of 285 programs, the percentages with at least one DO resident were significantly different among university (44.0%), university-affiliated (62.7%) and community (78.4%) programs (p < 0.001). DO residents made up 41.4% of community residents, 13.3% of university-affiliated residents, and 2.8% of university residents (p < 0.001). A significant regional difference was observed, as DO residents made up 16.9% of residents in the central region, compared to 10.4% in the northeast, 7.0% in the south and 8.9% in the west (p = 0.004). The logistic regression analysis found that the presence of DO residents at a program was significantly related to the type of program (Affiliated vs University OR = 3.1, 95% CI 1.5-6.5; Community vs University OR = 5.2, 95% CI 1.9-14.4) and the presence of DO faculty (OR = 2.7, 95% CI 1.6-4.8) (all p < 0.05)., Conclusions: We observed significant differences in the presence of DO residents in different program types. As surgical education transitions to single accreditation, this study identifies opportunities for greater integration between osteopathic and allopathic surgery training programs., (Published by Elsevier Inc.)
- Published
- 2022
- Full Text
- View/download PDF
49. Long-term association of serum selenium levels and the diabetes risk: Findings from a case-control study nested in the prospective Jinchang Cohort.
- Author
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Cheng Z, Li Y, Young JL, Cheng N, Yang C, Papandonatos GD, Kelsey KT, Wise JP Sr, Shi K, Zheng T, Liu S, and Bai Y
- Subjects
- Case-Control Studies, Child, Preschool, Humans, Odds Ratio, Prospective Studies, Risk Factors, Diabetes Mellitus epidemiology, Selenium
- Abstract
An increasing body of evidence implicates high levels of selenium intake in the development of diabetes, although prospective studies remain sparse. We conducted a nested case-control study of 622 diabetes incident cases and 622-age, sex, and follow-up time-matched controls in the prospective Jinchang cohort of 48,001 participants with a median of 5.8 years of follow-up. Inductively coupled plasma mass spectrometry (ICP-MS) was used to measure all 622 case-control pairs' baseline serum levels of selenium (Se), which were then categorized into quartiles based on the frequency distribution among the controls. Multivariable adjusted conditional logistic regression and restricted cubic splines (RCS) models were applied to evaluate independent odds ratios (OR) as estimates for relative risks (RR) of diabetes according to quartiles (Q) of selenium levels. Compared to the lowest quartile (Q1 as reference), significantly greater diabetes risks (with 95% confidence interval) were observed in Q3 (OR = 1.62, 1.17-2.35) and Q4 (OR = 1.79, 1.21-2.64). Sub-analyses showed these increased risks of diabetes by serum levels of Se. appeared to differ by sex, age, BMI status, history of hypertension, and dyslipidemia. Further, application of RSC models showed that serum Se levels between 95 and 120 μg/L were significantly and positively associated with diabetes risk whereas no apparent relation exists when Se levels were under 95 μg/L in this cohort population., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2021 Elsevier B.V. All rights reserved.)
- Published
- 2022
- Full Text
- View/download PDF
50. S-nitrosoglutathione functionalized polydopamine nanoparticles incorporated into chitosan/gelatin hydrogel films with NIR-controlled photothermal/NO-releasing therapy for enhanced wound healing.
- Author
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Wang W, Sheng H, Cao D, Zhang F, Zhang W, Yan F, Ding D, and Cheng N
- Subjects
- Animals, Mice, Anti-Bacterial Agents pharmacology, Anti-Bacterial Agents chemistry, Hydrogels chemistry, Hydrogels pharmacology, Infrared Rays, Methylgalactosides, Indoles chemistry, Indoles pharmacology, Chitosan chemistry, Wound Healing drug effects, Polymers chemistry, S-Nitrosoglutathione chemistry, S-Nitrosoglutathione pharmacology, Nanoparticles chemistry, Gelatin chemistry, Photothermal Therapy methods, Nitric Oxide
- Abstract
Nitric oxide (NO) has aroused wide interest in the treating infected wounds due to its characteristic functionalities. However, its utilization is limited due to its volatile properties, high reactivity, direct potential toxicity, and byproducts of NO donors limited its application. Herein, endogenously NO donor S-nitrosoglutathione (GSNO) was connected covalently to polydopamine nanoparticles (PDA-GSNO NPs) to minimize the loss of NO in aqueous medium. Meanwhile, near-infrared (NIR)-controlled NO release and photothermal therapy (PTT) was obtained through the photothermal conversion by PDA. Then chitosan (CS)/gelatin (GE) biocomposite hydrogel films with preferable biocompatibility, surface hydrophilicity, hydroabsorptivity, and mechanical adhesive properties were constructed. By embedding PDA-GSNO NPs into the films, a multifunctional wound dressing was fabricated. Under NIR light irradiation, the combination of PTT, NO-releasing, and CS antibacterial agents can strengthen the in vitro antimicrobial efficacy and in vivo wound healing activities. Meanwhile, the obtained wound dressing presented good biocompatibility. This work outlines an approach for combating bacterial infections and demonstrating the possibility for synergistic NO-releasing wound healing., (Copyright © 2021 Elsevier B.V. All rights reserved.)
- Published
- 2022
- Full Text
- View/download PDF
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