65 results on '"Tahmasebi S"'
Search Results
2. Prognostic Role of Lymphovascular Invasion in Patients with Early Breast Cancer
- Author
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Akrami, M., Meshksar, A., Ghoddusi, Johari M., Safarpour, M. M., Tahmasebi, S., Zangouri, V., and Talei, A.
- Published
- 2021
- Full Text
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3. Study of the role of Zinc Finger transcription factor of Arabidopsis thaliana 6 (ZAT6) in forage turnip (Brassica rapa L.) salinity tolerance.
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Shamloo-Dashtpagerdi, R. and Tahmasebi, S.
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ZINC-finger proteins ,TRANSCRIPTION factors ,BRASSICA ,TURNIPS ,ARABIDOPSIS thaliana ,SALINITY ,CHINESE cabbage - Published
- 2023
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4. On Past Extropy and Negative Cumulative Extropy Properties of Ranked Set Sampling and Maximum Ranked Set Sampling with Unequal Samples.
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Irshad, M. R., Maya, R., Archana, K., and Tahmasebi, S.
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STATISTICAL sampling ,INFORMATION measurement - Abstract
Ranked set sampling is considered as an alternative to simple random sampling and maximum ranked set sampling is a very useful modification of ranked set sampling. In this paper we focused on information content of ranked set sampling and maximum ranked set sampling with unequal samples in terms of past extropy measure and also considered the information content of negative cumulative extropy and its dynamic version based on maximum ranked set sampling and simple random sampling designs. We also compare ranked set sampling data, maximum ranked set sampling data with simple random sampling and with each other. Also here we obtained a new discrimination information measure among simple random sampling data, ranked set sampling data and maximum ranked set sampling data for past extropy measure. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
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5. On weighted cumulative residual extropy: characterization, estimation and testing
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Hashempour, M., primary, Kazemi, M. R., additional, and Tahmasebi, S., additional
- Published
- 2022
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6. General results on bivariate extended Weibull Morgenstern family and concomitants of its generalized order statistics
- Author
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Jafari, A. A., primary, Almaspoor, Z., additional, and Tahmasebi, S., additional
- Published
- 2021
- Full Text
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7. Anti-aging natural supplements: the main players in promoting healthy lifespan.
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Izadi M, Sadri N, Abdi A, Raeis Zadeh MM, Jalaei D, Ghazimoradi MM, Shouri S, and Tahmasebi S
- Abstract
Aging is an inevitable biological process accompanied by various physiological changes, and researchers have long sought interventions to promote healthy aging. This article explores the effects of four natural compounds-Omega-3 fatty acids, Coenzyme Q10, Gingerol, and Curcumin-on the aging process. We delve into the scientific literature to examine the potential benefits and mechanisms behind these substances in mitigating age-related conditions. Omega-3's anti-inflammatory properties, Coenzyme Q10's cellular energy support, Gingerol's antioxidant effects, and Curcumin's anti-aging properties are all discussed. By shedding light on the impact of these compounds, this review aims to contribute to a better understanding of how natural substances may play a role in promoting longevity and enhancing the quality of life during the aging journey.
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- 2024
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8. The Assessment of Anti-SARS-CoV-2 Antibodies in Different Vaccine Platforms: A Systematic Review and Meta-Analysis of COVID-19 Vaccine Clinical Trial Studies.
- Author
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Mirzakhani M, Bayat M, Dashti M, Tahmasebi S, Rostamtabar M, Esmaeili Gouvarchin Ghaleh H, and Amani J
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- Humans, Seroconversion, Antibodies, Neutralizing blood, Antibodies, Neutralizing immunology, Vaccination methods, Vaccines, Inactivated immunology, Vaccines, Inactivated administration & dosage, Vaccines, Inactivated adverse effects, COVID-19 Vaccines immunology, COVID-19 Vaccines administration & dosage, COVID-19 Vaccines adverse effects, Antibodies, Viral immunology, Antibodies, Viral blood, COVID-19 prevention & control, COVID-19 immunology, SARS-CoV-2 immunology, Clinical Trials as Topic
- Abstract
Background and Objective: The COVID-19 pandemic spread rapidly throughout the world and caused millions of deaths globally. Several vaccines have been developed to control the COVID-19 pandemic and reduce the burden it placed on public health. This study aimed to assess the efficacy of different vaccine platforms in inducing potent antibody responses. Moreover, the seroconversion rate and common side effects of vaccine platforms were evaluated., Methods: This meta-analysis included clinical trials of COVID-19 vaccines that met the eligibility criteria. Electronic databases (including PubMed, Scopus, and Web of Science) and Google Scholar search engine were searched for eligible studies. Regarding the methodological heterogeneity between the included studies, we selected a random-effects model. The geometric mean ratio (GMR) was chosen as the effect size for this meta-analysis., Results: Of the 1838 records identified through screening and after removing duplicate records, the full texts of 1076 records were assessed for eligibility. After the full-text assessment, 56 records were eligible and included in the study. Overall, vaccinated participants had a 150.8-fold increased rate of anti-spike IgG titres compared with the placebo group (GMR = 150.8; 95% CI, 95.9-237.1; I
2 = 100%). Moreover, vaccinated participants had a 37.3-fold increased rate of neutralising antibody titres compared with the placebo group (GMR = 37.3; 95% CI, 28.5-48.7; I2 = 99%). The mRNA platform showed a higher rate of anti-spike IgG (GMR = 1263.5; 95% CI, 431.1-3702.8; I2 = 99%), while neutralising antibody titres were higher in the subunit platform (GMR = 53.4; 95% CI, 32.8-87.1; I2 = 99%) than in other platforms. Different vaccine platforms showed different rates of both anti-spike IgG and neutralising antibody titres with interesting results. The seroconversion rate of anti-spike IgG and neutralising antibody titres was more than 98% in the vaccinated participants., Conclusion: Inactivated and subunit vaccines produced a high percentage of neutralising antibodies and had a low common adverse reaction rate compared to other platforms. In this regard, subunit and inactivated vaccines can still be used as the main vaccine platforms for effectively controlling infections with high transmission rates., (© 2024 John Wiley & Sons Ltd.)- Published
- 2024
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9. Th17 cell function in cancers: immunosuppressive agents or anti-tumor allies?
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Anvar MT, Rashidan K, Arsam N, Rasouli-Saravani A, Yadegari H, Ahmadi A, Asgari Z, Vanan AG, Ghorbaninezhad F, and Tahmasebi S
- Abstract
T helper (Th) 17 cells, a distinct subset of Th lymphocytes, are known for their prominent interleukin (IL)-17 production and other pro-inflammatory cytokines. These cells exhibit remarkable plasticity, allowing them to exhibit different phenotypes in the cancer microenvironment. This adaptability enables Th17 cells to promote tumor progression by immunosuppressive activities and angiogenesis, but also mediate anti-tumor immune responses through employing immune cells in tumor setting or even by directly converting toward Th1 phenotype and producing interferon-gamma (IFN-γ). This dual role of Th17 cells in cancer makes it a double-edged sword in encountering cancer. In this review, we aim to elucidate the complexities of Th17 cell function in cancer by summarizing recent studies and, ultimately, to design novel therapeutic strategies, especially targeting Th17 cells in the tumor milieu, which could pave the way for more effective cancer treatments., (© 2024. The Author(s).)
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- 2024
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10. Bioinformatic and experimental analyses of GATA3 and its regulatory miRNAs in breast Cancer.
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Roohy F, Moghanibashi M, and Tahmasebi S
- Abstract
Background: GATA binding protein 3 (GATA3) is a transcription factor that plays a critical role in the differentiation and function of luminal epithelial cells in the breast. MicroRNAs (miRNAs) are small non-coding RNAs that modulate gene expression and their dysregulation has been implicated in cancer. The purpose of this study was to investigate the expression of GATA3 and its corresponding targeting miRNAs in breast cancer., Materials and Methods: In this study, we used bioinformatic tools, including the miRWalk database and RNA Hybrid online tool, to identify potential miRNAs that target the GATA3 mRNA. Then, we collected frozen tissue specimens from 67 breast cancer patients and 67 adjacent normal breast tissue samples and evaluated the expression levels of GATA3, hsa-miR-433-3p, and hsa-miR-144-3p using quantitative RT-PCR., Results: We found that hsa-miR-433-3p and hsa-miR-144-3p are potential miRNAs that target the GATA3 mRNA, and we found that both were significantly downregulated in breast cancer tissues relative to adjacent normal breast tissues (P < 0.0001). We also observed a significant upregulation of the GATA3 mRNA in breast cancer tissues (P < 0.0001). Additionally, we found that their dysregulation was associated with clinicopathological features such as invasive carcinoma and carcinoma in situ subtypes, tumor grade, estrogen receptor status, progesterone receptor status, and HER2 status., Conclusions: Our study represents the first attempt to investigate the expression of GATA3 and its targeting miRNAs simultaneously in breast cancer. Our findings suggest that dysregulation of these genes may contribute to breast cancer development and progression., (© 2024. The Author(s).)
- Published
- 2024
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11. Preventive impact of probiotic supplements on heart injury and inflammatory indices in a rat model of myocardial infarction: histopathological and gene expression evaluation.
- Author
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Bonab SF, Tahmasebi S, Ghafouri-Fard S, and Eslami S
- Abstract
Although there is a bulk of evidence on the favorable effect of probiotics on the cardiac system, their role in the management of myocardial infarction is not clear. Three viable probiotic bacterial strains, namely Lactobacillus reuteri, Bifidobacterium longum, and Bifidobacterium lactis, were gavaged to the rats daily for 28 days prior to the induction of myocardial injury. Myocardial injury was induced by the use of isoproterenol (ISO) in the probiotics, control and sham groups. The heart tissues were catheterized to evaluate the histopathological parameters and measure the expression of genes related to inflammation. Treatment with ISO caused subendocardial necrosis and rupture of cardiac myofibrils. Pretreatment with probiotics reduced the size of myocardial infarction caused by ISO. Also, in the probiotic group, a relative decrease in the amount of tissue fibrosis and rupture of cardiomyocytes fibers was seen. Pretreatment with probiotics partially ameliorated myocardial necrosis, edema and leukocyte infiltration. Also, a remarkable decrease was detected in the expression of tissue proinflammatory genes in the pretreated group with probiotics. Thus, viable probiotic supplementation may ameliorate or prevent cardiac injury. Additional preclinical and clinical studies are required to clarify the impact of probiotics in the prevention and management of cardiovascular disease., (© 2024 Scandinavian Societies for Pathology, Medical Microbiology and Immunology.)
- Published
- 2024
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12. Epigenetic biomarkers in aging and longevity: Current and future application.
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Izadi M, Sadri N, Abdi A, Serajian S, Jalalei D, and Tahmasebi S
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- Humans, Animals, DNA Methylation, Epigenomics methods, Longevity genetics, Epigenesis, Genetic, Aging genetics, Biomarkers metabolism
- Abstract
The aging process has been one of the most necessary research fields in the current century, and knowing different theories of aging and the role of different genetic, epigenetic, molecular, and environmental modulating factors in increasing the knowledge of aging mechanisms and developing appropriate diagnostic, therapeutic, and preventive ways would be helpful. One of the most conserved signs of aging is epigenetic changes, including DNA methylation, histone modifications, chromatin remodeling, noncoding RNAs, and extracellular RNAs. Numerous biological processes and hallmarks are vital in aging development, but epigenomic alterations are especially notable because of their importance in gene regulation and cellular identity. The mounting evidence points to a possible interaction between age-related epigenomic alterations and other aging hallmarks, like genome instability. To extend a healthy lifespan and possibly reverse some facets of aging and aging-related diseases, it will be crucial to comprehend global and locus-specific epigenomic modifications and recognize corresponding regulators of health and longevity. In the current study, we will aim to discuss the role of epigenomic mechanisms in aging and the most recent developments in epigenetic diagnostic biomarkers, which have the potential to focus efforts on reversing the destructive signs of aging and extending the lifespan., Competing Interests: Declaration of competing interest The authors declare that they have no competing interests., (Copyright © 2024 Elsevier Inc. All rights reserved.)
- Published
- 2024
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13. Effect of genetic profiling on surgical decisions at hereditary colorectal cancer syndromes.
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Goudarzi Y, Monirvaghefi K, Aghaei S, Amiri SS, Rezaei M, Dehghanitafti A, Azarpey A, Azani A, Pakmehr S, Eftekhari HR, Tahmasebi S, Zohourian Shahzadi S, and Rajabivahid M
- Abstract
Hereditary colorectal cancer syndromes, such as Lynch syndrome and familial adenomatous polyposis (FAP), present significant clinical challenges due to the heightened cancer risks associated with these genetic conditions. This review explores genetic profiling impact on surgical decisions for hereditary colorectal cancer (HCRC), assessing options, timing, and outcomes. Genotypes of different HCRCs are discussed, revealing a connection between genetic profiles, disease severity, and outcomes. For Lynch syndrome, mutations in the MLH1, MSH2, MSH6, and PMS2 genes guide the choice of surgery. Subtotal colectomy is recommended for patients with mutations in MLH1 and MSH2, while segmental colectomy is preferred for those with MSH6 and PMS2 mutations. In cases of metachronous colon cancer after segmental colectomy, subtotal colectomy with ileorectal anastomosis is advised for all mutations. Surgical strategies for primary rectal cancer include anterior resection or abdominoperineal resection (APR), irrespective of the specific mutation. For rectal cancer occurring after a previous segmental colectomy, proctocolectomy with ileal pouch-anal anastomosis (IPAA) or APR with a permanent ileostomy is recommended. In FAP, surgical decisions are based on genotype-phenotype correlations. The risk of desmoid tumors post-surgery supports a single-stage approach, particularly for certain APC gene variants. Juvenile Polyposis Syndrome (JPS) surgical decisions involve genetic testing, polyp characteristics with attention to vascular lesions in SMAD4 mutation carriers. However, genetic profiling does not directly dictate the specific surgical approach for JPS. In conclusion this review highlights the critical role of personalized surgical plans based on genetic profiles to optimize patient outcomes and reduce cancer risk. Further research is needed to refine these strategies and enhance clinical guidelines., Competing Interests: 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., (© 2024 Published by Elsevier Ltd.)
- Published
- 2024
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14. Association of imaging and pathological findings of breast cancer in very young women: Report of a twenty-year retrospective study.
- Author
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Sefidbakht S, Beizavi Z, Kanaani Nejad F, Pishdad P, Sadighi N, Ghoddusi Johari M, Bijan B, and Tahmasebi S
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- Humans, Female, Retrospective Studies, Adult, Iran epidemiology, Young Adult, Breast diagnostic imaging, Breast pathology, Neoplasm Staging, Breast Neoplasms diagnostic imaging, Breast Neoplasms pathology, Mammography methods, Ultrasonography, Mammary methods
- Abstract
Purpose: In this study, we aimed to assess the new trends in characteristics, molecular subtypes, and imaging findings of breast cancer in very young women., Methods: We retrospectively reviewed the database of a primary breast cancer referral center in southern Iran in 342 cases of 30-year-old or younger women from 2001 to 2020. Pathologic data, including nuclear subtype and grade, tumor stage, presence of in situ cancer, imaging data including lesion type in mammogram and ultrasound, and treatment data were recorded. Descriptive statistics were applied. Differences between categorical values between groups were compared using Pearson's Chi-square test., Results: The mean age was 27.89 years. The tumor type was invasive ductal carcinoma in 82 % of cases. Fourteen patients (4.4 %) had only in situ cancer, and 170 patients had in situ components (49.7 %). Molecular subtypes were available in 278 patients, including 117 (42.1 %) Luminal A, 64 (23.0 %) Luminal B, 58 (20.9 %) triple negative, and 39 (14 %) HER2 Enriched. In those with mammograms available, 63 (30.1 %) had no findings, 53 (25.3 %) had mass, 27 (12.9 %) had asymmetry, whether focal or global, 21 (10 %) had microcalcifications solely, and 45 (21.5 %) had more than one finding. Microcalcifications were significantly more common in Luminal cancers than HER2 and triple-negative cancers (p = 0.041)., Conclusion: Our study shows the most common subtype to be Luminal A cancer, with 74 % of the tumors being larger than 2 cm at the time of diagnosis. Irregular masses with non-circumscribed margins were the most common imaging findings., Competing Interests: Declaration of competing interest None., (Copyright © 2024. Published by Elsevier Inc.)
- Published
- 2024
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15. Longevity and anti-aging effects of curcumin supplementation.
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Izadi M, Sadri N, Abdi A, Zadeh MMR, Jalaei D, Ghazimoradi MM, Shouri S, and Tahmasebi S
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- Humans, Longevity, Aging, Dietary Supplements, Curcumin pharmacology
- Abstract
Aging is a gradual and irreversible process that is accompanied by an overall decline in cellular function and a significant increase in the risk of age-associated disorders. Generally, delaying aging is a more effective method than treating diseases associated with aging. Currently, researchers are focused on natural compounds and their therapeutic and health benefits. Curcumin is the main active substance that is present in turmeric, a spice that is made up of the roots and rhizomes of the Curcuma longa plant. Curcumin demonstrated a positive impact on slowing down the aging process by postponing age-related changes. This compound may have anti-aging properties by changing levels of proteins involved in the aging process, such as sirtuins and AMPK, and inhibiting pro-aging proteins, such as NF-κB and mTOR. In clinical research, this herbal compound has been extensively examined in terms of safety, efficacy, and pharmacokinetics. There are numerous effects of curcumin on mechanisms related to aging and human diseases, so we discuss many of them in detail in this review., (© 2024. The Author(s), under exclusive licence to American Aging Association.)
- Published
- 2024
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16. Digital Screen Time and the Risk of Female Breast Cancer: A Retrospective Matched Case-Control Study.
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Mortazavi SAR, Tahmasebi S, Lech JC, Welsh JS, Taleie A, Rezaianzadeh A, Zamani A, Mega K, Nematollahi S, Zamani A, Mortazavi SMJ, and Sihver L
- Abstract
Background: As the use of electronic devices such as mobile phones, tablets, and computers continues to rise globally, concerns have been raised about their potential impact on human health. Exposure to high energy visible (HEV) blue light, emitted from digital screens, particularly the so-called artificial light at night (ALAN), has been associated with adverse health effects, ranging from disruption of circadian rhythms to cancer. Breast cancer incidence rates are also increasing worldwide., Objective: This study aimed at finding a correlation between breast cancer and exposure to blue light from mobile phone., Material and Methods: In this retrospective matched case-control study, we aimed to investigate whether exposure to blue light from mobile phone screens is associated with an increased risk of female breast cancer. We interviewed 301 breast cancer patients (cases) and 294 controls using a standard questionnaire and performed multivariate analysis, chi-square, and Fisher's exact tests for data analysis., Results: Although heavy users in the case group of our study had a statistically significant higher mean 10-year cumulative exposure to digital screens compared to the control group (7089±14985 vs 4052±12515 hours, respectively, P =0.038), our study did not find a strong relationship between exposure to HEV and development of breast cancer., Conclusion: Our findings suggest that heavy exposure to HEV blue light emitted from mobile phone screens at night might constitute a risk factor for promoting the development of breast cancer, but further large-scale cohort studies are warranted., Competing Interests: None, (Copyright: © Journal of Biomedical Physics and Engineering.)
- Published
- 2024
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17. Natural killer cell subsets and their functional molecules in peripheral blood of the patients with breast cancer.
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Darvishvand R, Rezaeifard S, Kiani R, Tahmasebi S, Faghih Z, and Erfani N
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- Humans, Female, Middle Aged, Adult, Aged, Flow Cytometry, Immunophenotyping, Lymphocyte Subsets immunology, Lymphocyte Subsets metabolism, Granzymes blood, Antigens, CD blood, Antigens, CD immunology, Breast Neoplasms immunology, Breast Neoplasms blood, Killer Cells, Natural immunology, Killer Cells, Natural metabolism
- Abstract
Background: Natural killer (NK) cells, CD3
- lymphocytes, are critical players in cancer immune surveillance. This study aimed to assess two types of CD3- NK cell classifications (subsets), that is, convectional subsets (based on CD56 and CD16 expression) and new subsets (based on CD56, CD27, and CD11b expression), and their functional molecules in the peripheral blood of patients with breast cancer (BC) in comparison with healthy donors (HDs)., Methods: Thirty untreated females with BC and 20 age-matched healthy women were enrolled. Peripheral blood samples were collected and directly incubated with fluorochrome-conjugated antibodies against CD3, CD56, CD16, CD27, CD11b, CD96, NKG2C, NKG2D, NKp44, CXCR3, perforin, and granzyme B. Red blood cells were then lysed using lysing solution, and the stained cells were acquired on four-color flow cytometer., Result: Our results indicated 15% of lymphocytes in peripheral blood of patients with BC and HDs had NK cells phenotype. However, the frequency of total NK cells (CD3- CD56+ ), and NK subsets (based on conventional and new classifications) was not significantly different between patients and HDs. We observed mean fluorescent intensity (MFI) of CXCR3 in total NK cells (p = .02) and the conventional cytotoxic (CD3- CD56dim CD16+ ) NK cells (p = .03) were significantly elevated in the patients with BC compared to HDs. Despite this, the MFI of granzyme B expression in conventional regulatory (CD3- CD56bright CD16- /+ ) NK cells and CD3- CD56- CD16+ NK cells (p = .03 and p = .004, respectively) in the patients was lower than healthy subjects., Conclusion: The higher expression of chemokine receptor CXCR3 on total NK cells in patients with BC may be associated with increased chemotaxis-related NK cell infiltration. However, lower expression of granzyme B in conventional regulatory NK cells and CD3- CD56- CD16+ NK cells in the patients compared to HDs suggests reduced cytotoxic activity of the NK cells in BC. These results might demonstrate accumulating NK subsets with a dysfunctional phenotype in the peripheral blood of patients with BC., (© 2024 The Authors. Immunity, Inflammation and Disease published by John Wiley & Sons Ltd.)- Published
- 2024
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18. Strategies to Promote Empowerment Status of Breast Cancer Women.
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Bahrami MA, Tabari S, Tahmasebi S, Zangouri V, and Ravangard R
- Abstract
Background: As the second leading cause of death in women in the world, breast cancer has several physical and psychological effects. Nowadays, nonclinical approaches such as patient empowerment have been considered by physicians along with clinical care. Given the increasing number of breast cancer women worldwide, promoting the empowerment of these patients is one of the key factors affecting their survival and quality of life. Therefore, because of no comprehensive research on the empowerment needs and related improvement strategies, this study is aimed at determining the empowerment status of breast cancer patients referred to the Shahid Motahari Breast Cancer Clinic in Iran, Shiraz, and at providing strategies to improve their empowerment in 2021., Methods: This applied study was conducted in two phases. In the quantitative phase, 310 Cancer-Related Patient Empowerment Scale questionnaires (Persian format) were distributed among the studied patients selected through the random sampling method in the clinic, and the items with "unacceptable status" became the basis for determining the empowerment strategies through the scoping review and semistructured interviews with 22 medical staff and patients through the thematic analysis. The collected data were analyzed using the SPSS 20.0 and MAXQDA10 software., Results: The mean score of the participants' empowerment strategies was 3.58. The results showed that trust in the physician, family support, and spiritual beliefs could affect the empowerment of the studied patients. Moreover, the participants needed empowerment strategies in 11 scale items with unacceptable status, for which 46 strategies were determined in the scoping review and interview phase., Conclusion: The results of this study provided useful strategies for empowering breast cancer patients, the most important of which were classified into five categories of financial support, informational support, interaction with the physician, occupational support, and complementary therapies, the use of which by the stakeholders could help to improve the patients' quality of life while improving their empowerment., Competing Interests: The authors declare that they have no competing interests., (Copyright © 2024 Mohammad Amin Bahrami et al.)
- Published
- 2024
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19. Impact of eIF2α phosphorylation on the translational landscape of mouse embryonic stem cells.
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Amiri M, Kiniry SJ, Possemato AP, Mahmood N, Basiri T, Dufour CR, Tabatabaei N, Deng Q, Bellucci MA, Harwalkar K, Stokes MP, Giguère V, Kaufman RJ, Yamanaka Y, Baranov PV, Tahmasebi S, and Sonenberg N
- Subjects
- Animals, Mice, Embryonic Stem Cells metabolism, Phosphorylation, RNA, Messenger metabolism, Eukaryotic Initiation Factor-2 metabolism, Mouse Embryonic Stem Cells metabolism, Pluripotent Stem Cells metabolism
- Abstract
The integrated stress response (ISR) is critical for cell survival under stress. In response to diverse environmental cues, eIF2α becomes phosphorylated, engendering a dramatic change in mRNA translation. The activation of ISR plays a pivotal role in the early embryogenesis, but the eIF2-dependent translational landscape in pluripotent embryonic stem cells (ESCs) is largely unexplored. We employ a multi-omics approach consisting of ribosome profiling, proteomics, and metabolomics in wild-type (eIF2α
+/+ ) and phosphorylation-deficient mutant eIF2α (eIF2αA/A ) mouse ESCs (mESCs) to investigate phosphorylated (p)-eIF2α-dependent translational control of naive pluripotency. We show a transient increase in p-eIF2α in the naive epiblast layer of E4.5 embryos. Absence of eIF2α phosphorylation engenders an exit from naive pluripotency following 2i (two chemical inhibitors of MEK1/2 and GSK3α/β) withdrawal. p-eIF2α controls translation of mRNAs encoding proteins that govern pluripotency, chromatin organization, and glutathione synthesis. Thus, p-eIF2α acts as a key regulator of the naive pluripotency gene regulatory network., Competing Interests: Declaration of interests The authors declare no competing interests., (Copyright © 2023 The Authors. Published by Elsevier Inc. All rights reserved.)- Published
- 2024
- Full Text
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20. Jasmonic acid improves barley photosynthetic efficiency through a possible regulatory module, MYC2-RcaA, under combined drought and salinity stress.
- Author
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Aliakbari M, Tahmasebi S, and Sisakht JN
- Subjects
- Ribulose-Bisphosphate Carboxylase metabolism, Tissue Plasminogen Activator metabolism, Tissue Plasminogen Activator pharmacology, Droughts, Photosynthesis genetics, Salt Stress, Stress, Physiological, Water metabolism, Salinity, Hordeum genetics, Hordeum metabolism, Cyclopentanes, Oxylipins
- Abstract
The combined stress of drought and salinity is prevalent in various regions of the world, affects several physiological and biochemical processes in crops, and causes their yield to decrease. Photosynthesis is one of the main processes that are disturbed by combined stress. Therefore, improving the photosynthetic efficiency of crops is one of the most promising strategies to overcome environmental stresses, making studying the molecular basis of regulation of photosynthesis a necessity. In this study, we sought a potential mechanism that regulated a major component of the combined stress response in the important crop barley (Hordeum vulgare L.), namely the Rubisco activase A (RcaA) gene. Promoter analysis of the RcaA gene led to identifying Jasmonic acid (JA)-responsive elements with a high occurrence. Specifically, a Myelocytomatosis oncogenes 2 (MYC2) transcription factor binding site was highlighted as a plausible functional promoter motif. We conducted a controlled greenhouse experiment with an abiotic stress-susceptible barley genotype and evaluated expression profiling of the RcaA and MYC2 genes, photosynthetic parameters, plant water status, and cell membrane damages under JA, combined drought and salinity stress (CS) and JA + CS treatments. Our results showed that applying JA enhances barley's photosynthetic efficiency and water relations and considerably compensates for the adverse effects of combined stress. Significant association was observed among gene expression profiles and evaluated physiochemical characteristics. The results showed a plausible regulatory route through the JA-dependent MYC2-RcaA module involved in photosynthesis regulation and combined stress tolerance. These findings provide valuable knowledge for further functional studies of the regulation of photosynthesis under abiotic stresses toward the development of multiple-stress-tolerant crops., (© 2024. The Author(s), under exclusive licence to Springer Nature B.V.)
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- 2024
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21. Mirror therapy effect on shoulder pain and disability and quality of life of mastectomy women: a randomized clinical trial.
- Author
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Roustaee S, Roudi Rashtabadi O, Tirgari B, Jahani Y, and Tahmasebi S
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- Humans, Female, Shoulder Pain etiology, Quality of Life, Mirror Movement Therapy, Treatment Outcome, Mastectomy adverse effects, Breast Neoplasms surgery, Breast Neoplasms complications
- Abstract
Purpose: To investigate mirror therapy (MT) influence on shoulder pain/disability and quality of life in mastectomy women., Materials and Methods: Sixty unilateral mastectomy women were recruited and randomly assigned to an MT group ( N = 30) or a sham therapy (ST) ( N = 30). Women in the MT and ST group attended a nurse-led, unsupervised, 30 min a day, five days a week, and at home training program for three weeks with and without a mirror, respectively. Shoulder pain and disability scale and QOL outcomes were assessed at baseline and 3 months after intervention., Results: Shoulder pain and disability were significantly improved in the MT group but there was not meaningful difference between groups in the EORTC-QOL scales except for some functional scores of QLQ-BR23 scale in the MT group after 3 months follow-up., Conclusions: Nurses should instruct MT as a rehabilitation program to mastectomy patients during or after hospitalization to reduce their post-op shoulder pain and disability. This intervention may have also positive impact on their self-care outcomes. It is recommended that further studies should be performed with nurse-supervised exercises, a validated tool for measuring QOL for a long period after surgery, and a longer follow-up period at least for 6 months.Implication for rehabilitationThis study aimed to investigate whether an unsupervised, nurse-led mirror therapy (MT) can alleviate shoulder pain and disability of mastectomy patients and improve their quality of life.Our findings indicated that nurse-led MT as a novel rehabilitation option for mastectomy patients, may reduce shoulder pain and disability even after long period after the surgery.Rehabilitation centers can equip rooms for MT so breast cancer women can use it immediately after mastectomy.Mirror therapy can be used as a rehabilitation method for mastectomy patients because it is easy-to-use, inexpensive, and without the need to attend a rehabilitation center.Rehabilitation centers can provide mirrors along with nursing instructions to women who want to use this method at home.
- Published
- 2023
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22. The Effects of the Fraction Isolated from Iranian Buthotus shach Scorpion Venom on Synaptic Plasticity, Learning, Memory, and Seizure Susceptibility.
- Author
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Heidarli E, Vatanpour H, Nasri Nasrabadi N, Soltani M, Tahmasebi S, and Faizi M
- Abstract
Epilepsy, as a neurological disease, can be defined as frequent seizure attacks. Further, it affects many other aspects of patients' mental activities, such as learning and memory. Scorpion venoms have gained notice as compounds with potential antiepileptic properties. Among them, Buthotus schach (BS) is one of the Iranian scorpions studied by Aboutorabi et al., who fractionated, characterized, and tested this compound using electrophysiological techniques in brain slices (patch-clamp recording). In the present study, the fraction obtained from gel electrophoresis was investigated through behavioral and electrophysiological assays. At first, ventricular cannulation was performed in rats, and then the active fraction (i.e., F3), carbamazepine, and the vehicle were microinjected into the brain before seizure induction by the subcutaneous (SC) injection of pentylenetetrazol (PTZ). Seizure behaviors were scaled according to Racine stages. Memory and learning were evaluated using the Y-maze and passive avoidance tests. Other groups entered evoked field potential recording after microinjection and seizure induction. Population spike (PS) and field excitatory postsynaptic potential (fEPSP) were measured. The F3 fraction could prevent the fifth stage and postpone the third stage of seizure compared to the control (carbamazepine) group. There was no significant improvement in memory and learning in the group treated with the F3 fraction. Also, PS amplitude and fEPSP slope increased significantly, and long-term potentiation was successfully formed after the high-frequency stimulation of the performant pathway. Our results support the antiepileptic effects of the F3 fraction of BS venom, evidenced by behavioral and electrophysiological studies. However, the effects of this fraction on memory and learning were not in the same direction, suggesting the involvement of two different pathways., Competing Interests: There is no conflict of interests., (Copyright © 2023, Heidarli et al.)
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- 2023
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23. RNA-based translation activators for targeted gene upregulation.
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Cao Y, Liu H, Lu SS, Jones KA, Govind AP, Jeyifous O, Simmons CQ, Tabatabaei N, Green WN, Holder JL Jr, Tahmasebi S, George AL Jr, and Dickinson BC
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- Animals, Mice, Humans, Up-Regulation, RNA, Messenger genetics, RNA, Messenger metabolism, Internal Ribosome Entry Sites, Mammals genetics, Protein Biosynthesis, Gene Expression Regulation
- Abstract
Technologies capable of programmable translation activation offer strategies to develop therapeutics for diseases caused by insufficient gene expression. Here, we present "translation-activating RNAs" (taRNAs), a bifunctional RNA-based molecular technology that binds to a specific mRNA of interest and directly upregulates its translation. taRNAs are constructed from a variety of viral or mammalian RNA internal ribosome entry sites (IRESs) and upregulate translation for a suite of target mRNAs. We minimize the taRNA scaffold to 94 nucleotides, identify two translation initiation factor proteins responsible for taRNA activity, and validate the technology by amplifying SYNGAP1 expression, a haploinsufficiency disease target, in patient-derived cells. Finally, taRNAs are suitable for delivery as RNA molecules by lipid nanoparticles (LNPs) to cell lines, primary neurons, and mouse liver in vivo. taRNAs provide a general and compact nucleic acid-based technology to upregulate protein production from endogenous mRNAs, and may open up possibilities for therapeutic RNA research., (© 2023. The Author(s).)
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- 2023
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24. Recent advances in non-small cell lung cancer targeted therapy; an update review.
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Araghi M, Mannani R, Heidarnejad Maleki A, Hamidi A, Rostami S, Safa SH, Faramarzi F, Khorasani S, Alimohammadi M, Tahmasebi S, and Akhavan-Sigari R
- Abstract
Lung cancer continues to be the leading cause of cancer-related death worldwide. In the last decade, significant advancements in the diagnosis and treatment of lung cancer, particularly NSCLC, have been achieved with the help of molecular translational research. Among the hopeful breakthroughs in therapeutic approaches, advances in targeted therapy have brought the most successful outcomes in NSCLC treatment. In targeted therapy, antagonists target the specific genes, proteins, or the microenvironment of tumors supporting cancer growth and survival. Indeed, cancer can be managed by blocking the target genes related to tumor cell progression without causing noticeable damage to normal cells. Currently, efforts have been focused on improving the targeted therapy aspects regarding the encouraging outcomes in cancer treatment and the quality of life of patients. Treatment with targeted therapy for NSCLC is changing rapidly due to the pace of scientific research. Accordingly, this updated study aimed to discuss the tumor target antigens comprehensively and targeted therapy-related agents in NSCLC. The current study also summarized the available clinical trial studies for NSCLC patients., (© 2023. BioMed Central Ltd., part of Springer Nature.)
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- 2023
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25. The effects of methotrexate on the immune responses to the COVID-19 vaccines in the patients with immune-mediated inflammatory disease: A systematic review of clinical evidence.
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Al-Haideri MT, Mannani R, Kaboli R, Gharebakhshi F, Darvishzadehdeldari S, Tahmasebi S, Faramarzi F, Cotrina-Aliaga JC, Khorasani S, Alimohammadi M, Darvishi M, and Akhavan-Sigari R
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- Humans, Infant, Newborn, Middle Aged, Methotrexate therapeutic use, Immunomodulating Agents, Immunoglobulin G, Antibodies, Viral, Immunity, Cellular, COVID-19 Vaccines therapeutic use, COVID-19
- Abstract
COVID-19 vaccines exhibit high levels of immunogenicity in the overall population. Data on the effects of immunomodulators on the consequences of COVID-19 in patients with Immune-mediated inflammatory diseases (IMIDs) remains scarce. This systematic review aimed to evaluate the immune responses to the COVID-19 vaccines in IMID patients receiving methotrexate (MTX) compared to healthy individuals. A comprehensive literature search was carried out using electronic databases such as PubMed, Web of Science, Scopus, Google Scholar, and Embase up to August 2022 to identify eligible RCTs evaluating the effect of MTX on immune responses in patients with COVID-19. The PRISMA checklist protocol was applied for the quality assessment of the selected trials. Our findings demonstrated that MTX lowered the responses of T cells and antibodies in IMID patients compared to healthy controls. We also discovered that young age (<60 years) was the main parameter influencing the antibody response after vaccination, while MTX had little effect. Following vaccination, MTX-hold and age were considered the main factors influencing the antibody response. In patients older than 60 years of age, the time point of 10 days of MTX discontinuation was critical to boosting the humoral response to anti-SARS-CoV-2 IgG. Because many IMID patients did not have adequate humoral and cellular responses, our findings highlighted the importance of second or booster doses of vaccine and temporary MTX discontinuation. As a result, it implies that individuals with IMIDs should be subjected to more research, particularly humoral and cellular immunity efficiency trials after COVID-19 vaccination, until credible information is achieved., Competing Interests: Declaration of Competing Interest The authors declared that they have no competing interests., (Copyright © 2023 Elsevier B.V. All rights reserved.)
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- 2023
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26. Scoping Review on Interventions, Actions, and Policies Affecting Return to School and Preventing School Dropout in Primary School.
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Eslamian A, Arshi M, Tahmasebi S, Alipour F, and Rafiey H
- Abstract
Background: Dropout is one of the most important social problems in the world and especially in low- and middle-income countries. Efforts to prevent dropouts require giving due attention to different perspectives for applying them. The present study aims to identify the policies and interventions made in previous studies because reviewing evidence-based interventions and learning from their strengths and weaknesses is likely to play an effective role in preventing students from leaving school and returning them to school., Methods: This scoping review study conducted on all available studies and documents related to students' dropout. The study population includes articles searched in electronic sources that contain information related to the subject of dropout and out-of-school in primary schools. Appropriate keywords were extracted based on Mesh term and EMTREE and their synonyms and searched by a medical librarian. scientific sources and Gray literature published in Persian and English based on PRISMA standard criteria were reviewed., Results: A review of studies indicated that various interventions such as student interaction with school, educational interventions on students and teachers, family and local community cooperation, free nutrition, behavioral interventions, financial aid, and free education had positive effects on reducing dropout, absenteeism and encouraging students to return to schools. effect size was not reported for school dropout intervention., Conclusions: The findings have indicated that intervention with a combination of global and targeted strategies can affect dropout in developing countries. However, to confirm the effectiveness of this type of intervention, further research is required to be conducted in different countries and with different cultures., Competing Interests: There are no conflicts of interest., (Copyright: © 2023 International Journal of Preventive Medicine.)
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- 2023
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27. Immunogenicity of COVID-19 vaccines in adult patients with autoimmune inflammatory rheumatic diseases: A systematic review and meta-analysis.
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Al-Haideri M, Mohammad TAM, Darvishzadehdeldari S, Karbasi Z, Alimohammadi M, Faramarzi F, Khorasani S, Rasouli A, Tahmasebi S, Darvishi M, and Akhavan-Sigari R
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- Adult, Humans, Randomized Controlled Trials as Topic, Antirheumatic Agents adverse effects, Arthritis, Rheumatoid drug therapy, Autoimmune Diseases diagnosis, Autoimmune Diseases drug therapy, COVID-19 prevention & control, COVID-19 Vaccines adverse effects, Rheumatic Diseases diagnosis, Rheumatic Diseases drug therapy
- Abstract
COVID-19 vaccines approved by the Food and Drug Administration have been studied mainly in healthy individuals and there is limited information on their immunogenicity in patients with autoimmune diseases. Therefore, the current systematic review and meta-analysis study, aimed to comprehensively investigate the immunogenicity of these vaccines in patients with autoimmune inflammatory rheumatoid diseases (AIRDs). A comprehensive literature search was performed on various databases, including Google Scholar, PubMed, Web of Science, EMBASE, and Cochrane Library, to select cohort and randomized clinical trial (RCT) studies up to January 2022. Also, the Preferred Reporting Items for Systematic Reviews and Meta-Analyses checklist protocol and the I
2 statistic were used for quality assessment and heterogeneity tests of the selected studies. Fixed and random-effects models were estimated based on the heterogeneity tests, and pooled data were determined as the ratio of mean (ROM) with a 95% confidence interval (CI). As a result, we found that vaccines can cause favorable immunogenicity and antibody response in vaccinated AIRD patients; however, older age and the concomitant consumption of conventional synthetic disease-modifying anti-rheumatic drugs (csDMARDs) and biologic DMARDs (bDMARDs) could significantly reduce the vaccine immunogenicity. Consequently, our findings revealed significant humoral responses (seropositive) in AIRD patients following the administration of COVID-19 vaccines., (© 2023 Asia Pacific League of Associations for Rheumatology and John Wiley & Sons Australia, Ltd.)- Published
- 2023
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28. Understanding dropout stabilization and the factors affecting the return to primary school: a qualitative study.
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Eslamian A, Arshi M, Tahmasebi S, Alipour F, Rafiey H, and Karimijavan G
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- Adult, Child, Humans, Students, Educational Status, Qualitative Research, Student Dropouts, Schools
- Abstract
This study aimed to understand dropout stabilization and the factors affecting the return to primary school using a qualitative approach. Data were collected from 47 semi-structured interviews with dropouts, their parents, children who returned to school, social facilitators, school teachers, local community religious leaders, and education activists. Following Graneheim and Lundman's method, thematic data analysis revealed two main categories: "dropout stabilization facilitators" and "dropout stabilization inhibitors", with 10 subcategories. Dropout stabilization facilitators included the 7 subcategories of perceiving academic decline, inhibitory effects of shame, barriers to re-enrollment, relief from educational pressures and norms, the transformed value system, family satisfaction, and the inefficiency of the formal care system. On the other hand, dropout stabilization inhibitors included the three subcategories of sensitivity to the informal care system, financial incentives, and intensive and flexible training. Some events after dropping out of school resulted in stabilized and definite dropouts. Children at primary schools do not have a clear understanding of the importance of achievements and the effects of education, perceiving dropout as an escape from educational norms and associated hardships. Transitioning into adult roles, such as marriage, motherhood, and assuming responsibilities for siblings, often leads individuals to prioritize other aspects of life over educational achievements. Barriers, such as age limits for being admitted to schools and lack of mechanisms for compensating tuition fees, lead to family dissatisfaction and further reinforce the decision to withdraw their children from school. Factors such as timely actions and follow-ups by schools, financial incentives, and brief interventions provided by the informal network are likely to prevent students from dropping out of school., Competing Interests: The authors declare no conflict of interest., (©2023 JOURNAL of MEDICINE and LIFE.)
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- 2023
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29. CAR-NKT cell therapy: a new promising paradigm of cancer immunotherapy.
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Hadiloo K, Tahmasebi S, and Esmaeilzadeh A
- Abstract
Today, cancer treatment is one of the fundamental problems facing clinicians and researchers worldwide. Efforts to find an excellent way to treat this illness continue, and new therapeutic strategies are developed quickly. Adoptive cell therapy (ACT) is a practical approach that has been emerged to improve clinical outcomes in cancer patients. In the ACT, one of the best ways to arm the immune cells against tumors is by employing chimeric antigen receptors (CARs) via genetic engineering. CAR equips cells to target specific antigens on tumor cells and selectively eradicate them. Researchers have achieved promising preclinical and clinical outcomes with different cells by using CARs. One of the potent immune cells that seems to be a good candidate for CAR-immune cell therapy is the Natural Killer-T (NKT) cell. NKT cells have multiple features that make them potent cells against tumors and would be a powerful replacement for T cells and natural killer (NK) cells. NKT cells are cytotoxic immune cells with various capabilities and no notable side effects on normal cells. The current study aimed to comprehensively provide the latest advances in CAR-NKT cell therapy for cancers., (© 2023. The Author(s).)
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- 2023
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30. CAR-modified immune cells as a rapidly evolving approach in the context of cancer immunotherapies.
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Faeq MH, Al-Haideri M, Mohammad TAM, Gharebakhshi F, Marofi F, Tahmasebi S, and Modaresahmadi S
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- Humans, Immunotherapy, Adoptive methods, T-Lymphocytes, Cytotoxic, Antigens, Neoplasm, Tumor Microenvironment, Immunotherapy methods, Neoplasms therapy
- Abstract
Nowadays, one of the main challenges clinicians face is malignancies. Through the progression of technology in recent years, tumor nature and tumor microenvironment (TME) can be better understood. Because of immune system involvement in tumorigenesis and immune cell dysfunction in the tumor microenvironment, clinicians encounter significant challenges in patient treatment and normal function recovery. The tumor microenvironment can stop the development of tumor antigen-specific helper and cytotoxic T cells in the tumor invasion process. Tumors stimulate the production of proinflammatory and immunosuppressive factors and cells that inhibit immune responses. Despite the more successful outcomes, the current cancer therapeutic approaches, including surgery, chemotherapy, and radiotherapy, have not been effective enough for tumor eradication. Hence, developing new treatment strategies such as monoclonal antibodies, adaptive cell therapies, cancer vaccines, checkpoint inhibitors, and cytokines helps improve cancer treatment. Among adoptive cell therapies, the interaction between the immune system and malignancies and using molecular biology led to the development of chimeric antigen receptor (CAR) T cell therapy. CAR-modified immune cells are one of the modern cancer therapeutic methods with encouraging outcomes in most hematological and solid cancers. The current study aimed to discuss the structure, formation, subtypes, and application of CAR immune cells in hematologic malignancies and solid tumors., (© 2023. The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.)
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- 2023
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31. Maternal and postweaning probiotic administration alleviated footshock-induced anxiety in both sexes of adolescent Balb/c mice.
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Sarikhani A, Vosoughi Zadeh S, Tahmasebi S, Farahani BK, Heydari Nik M, and Mohajerani HR
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- Pregnancy, Humans, Mice, Animals, Male, Female, Progesterone, Anxiety Disorders, Anxiety prevention & control, Prenatal Exposure Delayed Effects, Probiotics therapeutic use
- Abstract
Aim : Effects of maternal probiotics administered during pregnancy as well as consumption by offspring in the post-weaning period on anxiety behavior were examined. Methods : In addition to anxiety levels measured by EPM and OFT, the expression level of the hippocampal genes, and serum sex hormones in male and female mice that received foot shock stress were assayed in the pubertal period. Results : The results of this study showed that consumption of probiotics in the foot shock-stressed offspring in both sexes could significantly increase the length of stay in the EPM open arm compared to the control group, however, the offspring of the probiotic-treated dam did not. Consumption of probiotics by the pro-off group caused remarkable high expression of the 5HT
2AC receptor gene. In the pro-off group, consumption of probiotics led to a significant decrease in 5HT1 receptor expression. Expression of GABRA2 was increased in probiotics-treated groups, thus the pro-off and the pro-dam group had a significant difference from the control group. Feeding offspring with probiotics by significantly increased progesterone concentrations compared to the control group, and maternal consumption of probiotics during pregnancy and lactation had no reducing effect on progesterone concentrations. This is due to electric shock stress. The consumption of probiotics by mice during infancy was shown to compensate for the decrease in progesterone concentration in them. Maternal use of probiotics during pregnancy and lactation did not affect this concentration. Conclusions : It is concluded that probiotics can protect against foot shock stress-induced anxiety, progesterone disturbance, and dysregulation of expression of some anxiety-related genes.- Published
- 2023
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32. Using empirical negative cumulative extropy and image quality assessment to determine the accumulation of elements in marine organisms.
- Author
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Bibak M, Tahmasebi S, and Sattari M
- Subjects
- Animals, Aquatic Organisms, Geologic Sediments, Seawater, Fishes, Environmental Monitoring methods, Metals, Heavy analysis, Water Pollutants, Chemical analysis
- Abstract
In this study, the assessment of metals absorption capacity by macroalgae using image analysis was investigated for the first time and compared with fish bioaccumulatio. Empirical cumulative entropy (ECE), and also empirical negative cumulative extropy (ENCEX) were used as a newly introduced (information-based) indices. The regression equation was obtained between fish tissue-seawater in muscle of Sphyraena putnamiae (ENCEX=0.2001BAF; R
2 =0.96); In the case of muscle of Liza subviridis, the regression model was as (ENCEX=0.1950BAF; R2 =0.93). The regression equation was obtained between algae-sediment (ENCEXH. hamulosa =0.2695BAF; R2 =0.97). The studied indices showed a high accumulation of Hypnea hamulosa compared to the other algae (ECE=0.2601; ENCEX=0.3995). IQA method showed the same result exhibiting that the algae can be evaluated as a bio-indicator of element accumulation using image analysis. Image analysis can help us find macro algae with high absorption capacity without laboratory examinations., 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 Ltd. All rights reserved.)- Published
- 2023
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33. The simultaneous changes in motor performance and EEG patterns in beta band during learning dart throwing skill in dominant and non-dominant hand.
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Khanjari Y, Arabameri E, Shahbazi M, Tahmasebi S, Bahrami F, and Mobaien A
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- Humans, Young Adult, Adult, Learning, Brain, Electroencephalography, Motor Skills, Sports
- Abstract
Background: Although changes in performance during the learning of various sports skills have been studied, however, how these changes at the brain level is still unknown. The aim of this study was to investigate simultaneous changes in motor performance and EEG patterns in beta band during learning dart throwing skill in dominant and non-dominant hand. Methodology: The samples consisted of 14 non-athlete students with an average age of 23 ± 2.5, which were divided into two group dominant hand (7) and non-dominant hand (7). Repeated measures ANOVA were used to measure data at the execution level and changes in EEG activity. Results: The results of this study at the performance level showed a significant reduction in the absolute error of dart throwing and at the same time at the brain level increased EEG activity in frontal and parietal-posterior regions along with decreased central area activity in acquisition and retention stages in both groups (P<.05). Also, there was a significant difference between the activity of EEG pattern in the dominant and non-dominant hand groups except for two channels AF3 and PO4 (P<.05). Conclusion: In general, the results of this study showed that along with relatively constant changes in performance during dart skill learning, relatively constant changes in EEG activity pattern occur, so that the concept of motor learning is also visible at the brain level. Also, the results of this study supported the existence of the different motor program for dominant and non-dominant hand control in the conditions of bilateral transfer control.
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- 2023
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34. Exosome engineering in cell therapy and drug delivery.
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Sadeghi S, Tehrani FR, Tahmasebi S, Shafiee A, and Hashemi SM
- Subjects
- Drug Delivery Systems methods, Pharmaceutical Preparations, Exosomes
- Abstract
Cell-derived exosomes have opened new horizons in modern therapy for advanced drug delivery and therapeutic applications, due to their key features such as low immunogenicity, high physicochemical stability, capacity to penetrate into tissues, and the innate capacity to communicate with other cells over long distances. Exosome-based liquid biopsy has been potentially used for the diagnosis and prognosis of a range of disorders. Exosomes deliver therapeutic agents, including immunological modulators, therapeutic drugs, and antisense oligonucleotides to certain targets, and can be used as vaccines, though their clinical application is still far from reality. Producing exosomes on a large-scale is restricted to their low circulation lifetime, weak targeting capacity, and inappropriate controls, which need to be refined before being implemented in practice. Several bioengineering methods have been used for refining therapeutic applications of exosomes and promoting their effectiveness, on the one hand, and addressing the existing challenges, on the other. In the short run, new diagnostic platforms and emerging therapeutic strategies will further develop exosome engineering and therapeutic potential. This requires a thorough analysis of exosome engineering approaches along with their merits and drawbacks, as outlined in this paper. The present study is a comprehensive review of novel techniques for exosome development in terms of circulation time in the body, targeting capacity, and higher drug loading/delivery efficacies., (© 2023. The Author(s), under exclusive licence to Springer Nature Switzerland AG.)
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- 2023
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35. Correction: Effect of green cardamom on the expression of genes implicated in obesity and diabetes among obese women with polycystic ovary syndrome: a double blind randomized controlled trial.
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Cheshmeh S, Elahi N, Ghayyem M, Mosaieby E, Moradi S, Pasdar Y, Tahmasebi S, and Moradinazar M
- Published
- 2023
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36. Optimization of Sound Coding Strategies to Make Singing Music More Accessible for Cochlear Implant Users.
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Tahmasebi S, Segovia-Martinez M, and Nogueira W
- Subjects
- Humans, Auditory Perception physiology, Cochlear Implants, Music, Singing, Cochlear Implantation methods, Speech Perception
- Abstract
Cochlear implants (CIs) are implantable medical devices that can partially restore hearing to people suffering from profound sensorineural hearing loss. While these devices provide good speech understanding in quiet, many CI users face difficulties when listening to music. Reasons include poor spatial specificity of electric stimulation, limited transmission of spectral and temporal fine structure of acoustic signals, and restrictions in the dynamic range that can be conveyed via electric stimulation of the auditory nerve. The coding strategies currently used in CIs are typically designed for speech rather than music. This work investigates the optimization of CI coding strategies to make singing music more accessible to CI users. The aim is to reduce the spectral complexity of music by selecting fewer bands for stimulation, attenuating the background instruments by strengthening a noise reduction algorithm, and optimizing the electric dynamic range through a back-end compressor. The optimizations were evaluated through both objective and perceptual measures of speech understanding and melody identification of singing voice with and without background instruments, as well as music appreciation questionnaires. Consistent with the objective measures, results gathered from the perceptual evaluations indicated that reducing the number of selected bands and optimizing the electric dynamic range significantly improved speech understanding in music. Moreover, results obtained from questionnaires show that the new music back-end compressor significantly improved music enjoyment. These results have potential as a new CI program for improved singing music perception.
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- 2023
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37. Mesenchymal stem cell-based therapy as a new therapeutic approach for acute inflammation.
- Author
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Abdolmohammadi K, Mahmoudi T, Alimohammadi M, Tahmasebi S, Zavvar M, and Hashemi SM
- Subjects
- Humans, Inflammation therapy, Mesenchymal Stem Cell Transplantation methods, Mesenchymal Stem Cells, Acute Lung Injury therapy, Spinal Cord Injuries
- Abstract
Acute inflammatory diseases such as acute colitis, kidney injury, liver failure, lung injury, myocardial infarction, pancreatitis, septic shock, and spinal cord injury are significant causes of death worldwide. Despite advances in the understanding of its pathophysiology, there are many restrictions in the treatment of these diseases, and new therapeutic approaches are required. Mesenchymal stem cell-based therapy due to immunomodulatory and regenerative properties is a promising candidate for acute inflammatory disease management. Based on preclinical results, mesenchymal stem cells and their-derived secretome improved immunological and clinical parameters. Furthermore, many clinical trials of acute kidney, liver, lung, myocardial, and spinal cord injury have yielded promising results. In this review, we try to provide a comprehensive view of mesenchymal stem cell-based therapy in acute inflammatory diseases as a new treatment approach., Competing Interests: Declaration of competing interest The authors declare that they have no competing interests. This review has not been published previously and it is not under consideration for publication elsewhere., (Copyright © 2022 Elsevier Inc. All rights reserved.)
- Published
- 2023
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38. Effect of green cardamom on the expression of genes implicated in obesity and diabetes among obese women with polycystic ovary syndrome: a double blind randomized controlled trial.
- Author
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Cheshmeh S, Elahi N, Ghayyem M, Mosaieby E, Moradi S, Pasdar Y, Tahmasebi S, and Moradinazar M
- Abstract
Background: Polycystic ovary syndrome (PCOS) is an endocrine disease in which related to obesity, metabolic disorders and is considered as one of the main causes of infertility in women. This trial was investigated the effects of green cardamom on the expression of genes implicated in obesity and diabetes among obese women with PCOS., Methods: One hundred ninety-four PCOS women were randomly divided two groups: intervention (n = 99; 3 g/day green cardamom) and control groups (n = 95). All of them were given low calorie diet. Anthropometric, glycemic and androgen hormones were assessed before and after 16-week intervention. The reverse transcription-polymerase chain reaction (RT-PCR) method was used to measure fat mass and obesity-associated (FTO), peroxisome proliferative activating receptor- (PPAR-), carnitine palmitoyltransferase 1A (CPT1A), acetyl-CoA carboxylase beta (ACAB), leptin receptor (LEPR), ghrelin, and lamin A/C (LAMIN) genes expression in each group., Results: Anthropometric indices were significantly decreased after intervention in both two studied groups. Glycemic indices and androgen hormones were significantly improved in the intervention group compared to the control group. The expression levels of FTO, CPT1A, LEPR, and LAMIN were significantly downregulated compared to control group (P < 0.001), as well as, PPAR-y was significantly upregulated in the intervention group after intervention with green cardamom compared to control group (P < 0.001)., Conclusion: This current study showed that the administration of green cardamom is a beneficial approach for improving anthropometric, glycemic, and androgen hormones, as well as obesity and diabetes genes expression in PCOS women under the low-calorie diet., Trial Registration: This trial was registered with the Iranian Clinical Trials Registry (registration number: IRCT20200608047697N1). 1 August, 2020; https://www.irct.ir/trial/48748., (© 2022. The Author(s).)
- Published
- 2022
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39. Comparison of volatile/inhalational and IV anesthesia in long-term survival of patients with breast cancer: a retrospective study.
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Karami MY, Dehghanpisheh L, Karami A, Sabzloun Z, Niazkar HR, Mojarad N, Panah A, Talei A, and Tahmasebi S
- Subjects
- Humans, Female, Retrospective Studies, Disease-Free Survival, Breast Neoplasms surgery, Anesthesia, Isoflurane
- Abstract
Objective: Breast cancer is a worldwide health concern, and surgical removal has remained the preferred therapeutic option in most patients. Furthermore, the current study was designed to investigate the disease-free survival and overall survival in breast cancer patients, who receive either propofol or isoflurane during operation., Method: This retrospective study was conducted on 994 patients (IV group, n = 530; volatile/inhalational group, n = 464) who underwent breast cancer operation from January 2006 to December 2016 at Faghihi Hospital, Shiraz, Iran. All studied patients were followed up till 2020. Patients are classified into two groups, IV and volatile/inhalational, according to the received anesthesia. For statistical analysis, The Cox regression test was conducted to investigate the association between factors affecting the recurrence of the disease and the Log Rank test was utilized to assess the patients' survival. Finally, to reduce the effect of confounding factors, all patients were matched according to age, tumor size and tumor grade., Results: Based on results from the log-rank test, the volatile/inhalational group had a better recurrence-free survival (P = 0.039) compared to the total IV group. However, the overall survival was not considerably different (P = 0.520)., Conclusion: The current study showed that although 2-year disease-free survival is higher in the volatile/inhalational group, there is no meaningful association between the 5-year overall survival and anesthesia technique., (© 2022. The Author(s).)
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- 2022
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40. Machine Learning Models for Predicting Breast Cancer Risk in Women Exposed to Blue Light from Digital Screens.
- Author
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Mortazavi SAR, Tahmasebi S, Parsaei H, Taleie A, Faraz M, Rezaianzadeh A, Zamani A, Zamani A, and Mortazavi SMJ
- Abstract
Background: Nowadays, there is a growing global concern over rapidly increasing screen time (smartphones, tablets, and computers). An accumulating body of evidence indicates that prolonged exposure to short-wavelength visible light (blue component) emitted from digital screens may cause cancer. The application of machine learning (ML) methods has significantly improved the accuracy of predictions in fields such as cancer susceptibility, recurrence, and survival., Objective: To develop an ML model for predicting the risk of breast cancer in women via several parameters related to exposure to ionizing and non-ionizing radiation., Material and Methods: In this analytical study, three ML models Random Forest (RF), Support Vector Machine (SVM), and Multi-Layer Perceptron Neural Network (MLPNN) were used to analyze data collected from 603 cases, including 309 breast cancer cases and 294 gender and age-matched controls. Standard face-to-face interviews were performed using a standard questionnaire for data collection., Results: The examined models RF, SVM, and MLPNN performed well for correctly classifying cases with breast cancer and the healthy ones (mean sensitivity> 97.2%, mean specificity >96.4%, and average accuracy >97.1%)., Conclusion: Machine learning models can be used to effectively predict the risk of breast cancer via the history of exposure to ionizing and non-ionizing radiation (including blue light and screen time issues) parameters. The performance of the developed methods is encouraging; nevertheless, further investigation is required to confirm that machine learning techniques can diagnose breast cancer with relatively high accuracies automatically., Competing Interests: None, (Copyright: © Journal of Biomedical Physics and Engineering.)
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- 2022
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41. Study of immunomodulatory effects of mesenchymal stem cell-derived exosomes in a mouse model of LPS induced systemic inflammation.
- Author
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Eshghi F, Tahmasebi S, Alimohammadi M, Soudi S, Khaligh SG, Khosrojerdi A, Heidari N, and Hashemi SM
- Subjects
- Mice, Animals, Lipopolysaccharides toxicity, Mice, Inbred C57BL, Inflammation, Disease Models, Animal, Exosomes, Mesenchymal Stem Cells, Sepsis chemically induced, Sepsis therapy
- Abstract
Background: Sepsis is a debilitating systemic inflammation that resulted from infection or injury. Despite many advances in treatment, the resulting mortality rate has remained high due to increasing antibiotic resistance and aging communities. The present study investigated the effects of stem cell-derived exosomes in a mouse model of LPS-induced systemic inflammation., Materials and Methods: To induce sepsis, the LPS model was used. Mice were divided into three groups: normal, patient group (LPS + PBS), and treatment group (LPS + exosome). The treatment group received an intravenous exosome 1 h after induction of the model. Patient and treatment groups were sacrificed at 4, 6, 24, and 48 h after induction of the model, and their tissues were isolated. Blood samples were taken from animal hearts to perform biochemical and immunological tests. The study results were analyzed using Graph Pad Prism software version 9., Results: Mesenchymal stem cell-derived exosomes decreased serum levels of ALT and AST liver enzymes, decreased neutrophil to lymphocyte ratio (NLR), and improved kidney, liver, and lung tissue damage at 4, 6, and 24 h after model induction. At 24 h, the exosomes were able to reduce serum urea levels. This study revealed decreased levels of inflammatory cytokines such as IL-6, IL-1β, and TNF-α after exosome injection., Conclusion: Our findings suggest that treating mice with stem cell-derived exosomes can ameliorate the destructive effects of inflammation caused by sepsis by reducing inflammatory factors and tissue damage., 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 Inc. All rights reserved.)
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- 2022
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42. Cost-Effectiveness of Breast Cancer Screening in Shiraz, Iran.
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Askarian M, Dianat S, Tahmasebi S, Jafari A, and Hatam N
- Abstract
Background: Breast cancer is the most common cancer in the world, which accounts for 21.4% of all kinds of cancers for women in Iran. However, the treatment of breast cancer is costly and given that the budget devoted to the healthcare sector is limited, the present study aimed to investigate the cost-effectiveness of breast cancer screening for women, who referred to breast clinic located in Shahid Motahari clinic affiliated to Shiraz University of Medical Sciences, Shiraz city, Iran in 2017-2018., Methods: This study is a cross-sectional study analyzing the cost-effectiveness of breast cancer screening versus no screening. The study was conducted on 3500 women, who referred to the breast clinic in Motahari clinic, at 2017-2018 in Shiraz, Iran. The patients were identified and direct costs, which were correlated to cancer breast screening, were calculated based on the patients' records with public tariff per person. Tree age pro 2011 used to analyze cost effectiveness., Results: Based on the results obtained, the expected cost of screening and no screening were 7556 $ppp and 7840 $ppp, respectively. Given their difference in effectiveness (16%), screening was dominant (less costly and more effective) compared to no screening. Tornado diagram showed that the results had the maximum sensitivity to the increase in screening cost., Conclusions: In general, according to the results obtained from the current study, the screening was more cost effective compared with no screening., Competing Interests: There are no conflicts of interest., (Copyright: © 2022 International Journal of Preventive Medicine.)
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- 2022
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43. CAR-T cell combination therapy: the next revolution in cancer treatment.
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Al-Haideri M, Tondok SB, Safa SH, Maleki AH, Rostami S, Jalil AT, Al-Gazally ME, Alsaikhan F, Rizaev JA, Mohammad TAM, and Tahmasebi S
- Abstract
In recent decades, the advent of immune-based therapies, most notably Chimeric antigen receptor (CAR)-T cell therapy has revolutionized cancer treatment. The promising results of numerous studies indicate that CAR-T cell therapy has had a remarkable ability and successful performance in treating blood cancers. However, the heterogeneity and immunosuppressive tumor microenvironment (TME) of solid tumors have challenged the effectiveness of these anti-tumor fighters by creating various barriers. Despite the promising results of this therapeutic approach, including tumor degradation and patient improvement, there are some concerns about the efficacy and safety of the widespread use of this treatment in the clinic. Complex and suppressing tumor microenvironment, tumor antigen heterogeneity, the difficulty of cell trafficking, CAR-T cell exhaustion, and reduced cytotoxicity in the tumor site limit the applicability of CAR-T cell therapy and highlights the requiring to improve the performance of this treatment. With this in mind, in the last decade, many efforts have been made to use other treatments for cancer in combination with tuberculosis to increase the effectiveness of CAR-T cell therapy, especially in solid tumors. The combination therapy results have promising consequences for tumor regression and better cancer control compared to single therapies. Therefore, this study aimed to comprehensively discuss different cancer treatment methods in combination with CAR-T cell therapy and their therapeutic outcomes, which can be a helpful perspective for improving cancer treatment in the near future., (© 2022. The Author(s).)
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- 2022
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44. Immunomodulatory role of Nanocurcumin in COVID-19 patients with dropped natural killer cells frequency and function.
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Abbaspour-Aghdam S, Hazrati A, Abdolmohammadi-Vahid S, Tahmasebi S, Mohseni J, Valizadeh H, Nadiri M, Mikaeili H, Sadeghi A, Yousefi M, Roshangar L, Nikzad B, Jadidi-Niaragh F, Kafil HS, Malekpour K, and Ahmadi M
- Subjects
- Case-Control Studies, Chemotactic Factors pharmacology, Cytokines metabolism, Humans, Immunity, Inflammation Mediators pharmacology, Interleukin-6, Killer Cells, Natural, Pandemics, Tumor Necrosis Factor-alpha metabolism, COVID-19 Drug Treatment
- Abstract
The ongoing COVID-19 pandemic is still a challenging problem in the case of infection treatment. The immunomodulatory effect of Nanocurcumin was investigated in the present study in an attempt to counterbalance the immune response and improve the patients' clinical symptoms. 60 confirmed COVID-19 patients and 60 healthy controls enrolled in the study. COVID-19 patients were divided into Nanocurcumin and placebo received groups. Due to the importance of the role of NK cells in this disease, the frequency, cytotoxicity, receptor gene expression of NK cells, and serum secretion levels of inflammatory cytokines IL-1β, IL-6, TNF-α, as well as circulating C5a as a chemotactic factor an inflammatory mediator was evaluated by flow cytometry, real-time PCR and enzyme-linked immunosorbent assay in both experimental groups before and after the intervention. Given the role of measured factors in the progression and pathogenesis of COVID-19 disease, the results can help find appropriate treatments. The results of this study indicated that the Nanocurcumin could significantly increase the frequency and function of NK cells compared to the placebo-treated group. As an immunomodulatory agent, Nanocurcumin may be a helpful choice to improve NK cell function in COVID-19 patients and improve the clinical outcome of patients., 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 considered as a potential conflict of interest., (Copyright © 2022. Published by Elsevier B.V.)
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- 2022
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45. Evidence that miR168a contributes to salinity tolerance of Brassica rapa L. via mediating melatonin biosynthesis.
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Shamloo-Dashtpagerdi R, Lindlöf A, and Tahmasebi S
- Subjects
- Salt Tolerance genetics, Gene Expression Regulation, Plant, Antioxidants metabolism, Methyltransferases genetics, Brassica rapa physiology, Melatonin, MicroRNAs genetics, MicroRNAs metabolism
- Abstract
Melatonin is a master regulator of diverse biological processes, including plant's abiotic stress responses and tolerance. Despite the extensive information on the role of melatonin in response to abiotic stress, how plants regulate endogenous melatonin content under stressful conditions remains largely unknown. In this study, we computationally mined Expressed Sequence Tag (EST) libraries of salinity-exposed Chinese cabbage (Brassica rapa) to identify the most reliable differentially expressed miRNA and its target gene(s). In light of these analyses, we found that miR168a potentially targets a key melatonin biosynthesis gene, namely O-METHYLTRANSFERASE 1 (OMT1). Accordingly, molecular and physiochemical evaluations were performed in a separate salinity experiment using contrasting B. rapa genotypes. Then, the association between B. rapa salinity tolerance and changes in measured molecular and physiochemical characteristics was determined. Results indicated that the expression profiles of miR168a and OMT1 significantly differed between B. rapa genotypes. Moreover, the expression profiles of miR168a and OMT1 significantly correlated with more melatonin content, robust antioxidant activities, and better ion homeostasis during salinity stress. Our results suggest that miR168a plausibly mediates melatonin biosynthesis, mainly through the OMT1 gene, under salinity conditions and thereby contributes to the salinity tolerance of B. rapa. To our knowledge, this is the first report on the role of miR168a and OMT1 in B. rapa salinity response., (© 2022 Scandinavian Plant Physiology Society.)
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- 2022
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46. The amino acid sensor GCN2 suppresses terminal oligopyrimidine (TOP) mRNA translation via La-related protein 1 (LARP1).
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Farooq Z, Kusuma F, Burke P, Dufour CR, Lee D, Tabatabaei N, Toboz P, Radovani E, Greenblatt JF, Rehman J, Class J, Khoutorsky A, Fonseca BD, Richner JM, Mercier E, Bourque G, Giguère V, Subramaniam AR, Han J, and Tahmasebi S
- Subjects
- Activating Transcription Factor 4 genetics, Activating Transcription Factor 4 metabolism, Animals, Cell Culture Techniques, Chromatin Immunoprecipitation, Eukaryotic Initiation Factor-4E metabolism, Fibroblasts, Mechanistic Target of Rapamycin Complex 1 metabolism, Mice, Mice, Knockout, Amino Acids metabolism, Protein Biosynthesis, Protein Serine-Threonine Kinases genetics, Protein Serine-Threonine Kinases metabolism, RNA 5' Terminal Oligopyrimidine Sequence, RNA, Messenger genetics, RNA, Messenger metabolism, RNA-Binding Proteins genetics, RNA-Binding Proteins metabolism
- Abstract
La-related protein 1 (LARP1) has been identified as a key translational inhibitor of terminal oligopyrimidine (TOP) mRNAs downstream of the nutrient sensing protein kinase complex, mTORC1. LARP1 exerts this inhibitory effect on TOP mRNA translation by binding to the mRNA cap and the adjacent 5'TOP motif, resulting in the displacement of the cap-binding protein eIF4E from TOP mRNAs. However, the involvement of additional signaling pathway in regulating LARP1-mediated inhibition of TOP mRNA translation is largely unexplored. In the present study, we identify a second nutrient sensing kinase GCN2 that converges on LARP1 to control TOP mRNA translation. Using chromatin-immunoprecipitation followed by massive parallel sequencing (ChIP-seq) analysis of activating transcription factor 4 (ATF4), an effector of GCN2 in nutrient stress conditions, in WT and GCN2 KO mouse embryonic fibroblasts, we determined that LARP1 is a GCN2-dependent transcriptional target of ATF4. Moreover, we identified GCN1, a GCN2 activator, participates in a complex with LARP1 on stalled ribosomes, suggesting a role for GCN1 in LARP1-mediated translation inhibition in response to ribosome stalling. Therefore, our data suggest that the GCN2 pathway controls LARP1 activity via two mechanisms: ATF4-dependent transcriptional induction of LARP1 mRNA and GCN1-mediated recruitment of LARP1 to stalled ribosomes., Competing Interests: Conflict of interest The authors declare that they have no conflicts of interest with the contents of this article., (Copyright © 2022 The Authors. Published by Elsevier Inc. All rights reserved.)
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- 2022
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47. The amino acid sensor GCN2 controls red blood cell clearance and iron metabolism through regulation of liver macrophages.
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Toboz P, Amiri M, Tabatabaei N, Dufour CR, Kim SH, Fillebeen C, Ayemoba CE, Khoutorsky A, Nairz M, Shao L, Pajcini KV, Kim KW, Giguère V, Oliveira RL, Constante M, Santos MM, Morales CR, Pantopoulos K, Sonenberg N, Pinho S, and Tahmasebi S
- Subjects
- Activating Transcription Factor 4 metabolism, Anemia metabolism, Animals, Cytophagocytosis, Gene Deletion, Hemolysis, Hypoxia metabolism, Lysosomes metabolism, Mice, Mice, Knockout, NF-E2-Related Factor 2 metabolism, Stress, Physiological, Amino Acids deficiency, Amino Acids metabolism, Erythrocytes metabolism, Iron metabolism, Liver cytology, Macrophages metabolism, Protein Serine-Threonine Kinases deficiency, Protein Serine-Threonine Kinases genetics, Protein Serine-Threonine Kinases metabolism
- Abstract
GCN2 (general control nonderepressible 2) is a serine/threonine-protein kinase that controls messenger RNA translation in response to amino acid availability and ribosome stalling. Here, we show that GCN2 controls erythrocyte clearance and iron recycling during stress. Our data highlight the importance of liver macrophages as the primary cell type mediating these effects. During different stress conditions, such as hemolysis, amino acid deficiency or hypoxia, GCN2 knockout ( GCN2
-/- ) mice displayed resistance to anemia compared with wild-type ( GCN2+/+ ) mice. GCN2-/- liver macrophages exhibited defective erythrophagocytosis and lysosome maturation. Molecular analysis of GCN2-/- cells demonstrated that the ATF4-NRF2 pathway is a critical downstream mediator of GCN2 in regulating red blood cell clearance and iron recycling.- Published
- 2022
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48. Pseudoangiomatous stromal hyperplasia of the breast: A case report.
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Tahmasebi S, Khorsand Rahim Zadeh A, Zangouri V, Akrami M, Ghoddusi Johari M, and Talei A
- Abstract
Pseudoangiomatous stromal hyperplasia (PASH) is a rare benign breast entity scarcely reported in the medical literature. Its pathogenesis, etiology, and optimal treatment are still unknown. PASH tumors have a broad spectrum of clinical presentations and might be mistaken for malignancies. The authors present six patients diagnosed with PASH., Competing Interests: All authors declare that they have no conflict of interest., (© 2022 The Authors. Clinical Case Reports published by John Wiley & Sons Ltd.)
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- 2022
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49. The Effect of an Earthquake Experienced During Pregnancy on Maternal Health and Birth Outcomes.
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Amarpoor Mesrkanlou H, Ghaemmaghami Hezaveh SJ, Tahmasebi S, Nikniaz Z, and Nikniaz L
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- Pregnancy, Infant, Newborn, Humans, Female, Retrospective Studies, Maternal Health, Hemoglobins, Earthquakes, Gestational Weight Gain, Premature Birth
- Abstract
Objective: Maternal health in pregnancy and birth outcomes were compared between pre- and post-Varzaghan earthquake., Methods: In this retrospective descriptive study, before and after the earthquake, 550 and 450 women were enrolled respectively. Neonatal weight, height, and head circumference, as well as maternal weight gain and hemoglobin (Hb) levels were obtained using medical records at health centers. Chi-square test and Independent t-test were used to analyze differences in pregnancy outcomes. A P -value less than 0.05 was considered significant., Results: A significant increase in inadequate gestational weight gain (44.1% vs 58.9%) was observed ( P = 0.043) before and after the earthquake. The mean hemoglobin level in the first trimester before the earthquake was significantly higher than after the earthquake ( P = 0.001). Before-after earthquake comparisons showed that the mean birth weight, birth height, and birth head circumference were decreased significantly ( P < 0.05). In addition, the rates of preterm birth (18.91% vs 10.90%), abortion (17.11% vs 10.54%), and stillbirth (3.78% vs 1.82%) were increased significantly after the earthquake ( P < 0.05)., Conclusions: Earthquake causes inadequate gestational weight gain and decreased hemoglobin levels, which lead to adverse birth outcomes. More longitudinal and well-designed studies are desired to investigate the longitudinal consequences of disasters on susceptible groups.
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- 2022
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50. Cellular and biological factors involved in healing wounds and burns and treatment options in tissue engineering.
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Yeganeh PM, Tahmasebi S, and Esmaeilzadeh A
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- Humans, Intercellular Signaling Peptides and Proteins metabolism, Intercellular Signaling Peptides and Proteins pharmacology, Skin injuries, Skin metabolism, Skin Transplantation, Biological Factors metabolism, Biological Factors pharmacology, Burns physiopathology, Burns therapy, Tissue Engineering, Wound Healing physiology
- Abstract
Severe traumatic wounds and burns have a high chance of mortality and can leave survivors with many functional disabilities and cosmetic problems, including scars. The healing process requires a harmonious interplay of various cells and growth factors. Different structures of the skin house numerous cells, matrix components and growth factors. Any disturbance in the balance between these components can impair the healing process. The function of cells and growth factors can be manipulated and facilitated to aid tissue repair. In the current review, the authors focus on the importance of the skin microenvironment, the pathophysiology of various types of burns, mechanisms and factors involved in skin repair and wound healing and regeneration of the skin using tissue engineering approaches.
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- 2022
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