37 results on '"Dongxue Zhang"'
Search Results
2. Role of LncRNA score and PVT1 in primary hyperparathyroidism-- a preliminary study
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Long Li, Xiaoai Yao, Dongxue Zhang, Yuyan Sun, Bojun Wei, Xin Liu, and Tao Jiang
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Adult ,Male ,medicine.medical_specialty ,RD1-811 ,chemistry.chemical_element ,030209 endocrinology & metabolism ,LncRNA score ,Calcium ,Gastroenterology ,Water ingestion ,Sensitivity and Specificity ,03 medical and health sciences ,0302 clinical medicine ,Internal medicine ,medicine ,Humans ,Original Research Article ,Risk factor ,PVT1 ,Parathyroid cancer ,Parathyroid adenoma ,Aged ,Aged, 80 and over ,Hyperparathyroidism ,business.industry ,Reverse Transcriptase Polymerase Chain Reaction ,Cancer ,Middle Aged ,medicine.disease ,Hyperparathyroidism, Primary ,Up-Regulation ,Otorhinolaryngology ,chemistry ,Gene Expression Regulation ,030220 oncology & carcinogenesis ,Hypercalcemia ,Female ,RNA, Long Noncoding ,Surgery ,business ,Primary hyperparathyroidism ,Biomarkers - Abstract
Background Dysregulated lncRNA score and PVT1 expression may be involved in cancer. However, relationships of lncRNAs with hyperparathyroidism and parathyroid cancer (PC) diagnosis remain mysterious. Methods Using quantitative real-time polymerase chain reaction (RT-qPCR), expression profile of PVT1 was evaluated in 57 patients with primary hyperparathyroidism, including 11 with parathyroid cancer (PC) and 46 with parathyroid adenoma (PA). Results Higher levels of lncRNA score and PVT1 expression were associated with increased serum calcium level after water ingestion and PC risk (P P P = 0.010). Conclusion Increased lncRNA score is correlated with an elevated level of serum calcium, which may serve as a potential biomarker for PC diagnosis, especially with hypercalcemia. Graphical abstract
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- 2021
3. Computed Tomography-Estimated Pancreatic Steatosis is Associated with Carotid Plaque in Type 2 Diabetes Mellitus Patients: A Cross-Sectional Study from China
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Chunzhi Fan, Tongwei Chu, Xiaoli Sun, Dongxue Zhang, Xuechao Du, Pengtao Sun, and Rengui Wang
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Cross-sectional study ,030209 endocrinology & metabolism ,Computed tomography ,030204 cardiovascular system & hematology ,pancreatic steatosis ,03 medical and health sciences ,0302 clinical medicine ,Diabetes mellitus ,Internal Medicine ,medicine ,Targets and Therapy [Diabetes, Metabolic Syndrome and Obesity] ,Original Research ,Pharmacology ,Receiver operating characteristic ,medicine.diagnostic_test ,business.industry ,Ultrasound ,Type 2 Diabetes Mellitus ,computed tomography ,medicine.disease ,medicine.anatomical_structure ,diabetes mellitus ,atherosclerosis ,Steatosis ,Nuclear medicine ,business ,Pancreas - Abstract
Pengtao Sun,1,* Chunzhi Fan,2,* Rengui Wang,1 Tongwei Chu,3 Xiaoli Sun,1 Dongxue Zhang,4 Xuechao Du5 1Department of Radiology, Beijing Shijitan Hospital, Capital Medical University, Beijing, 100038, People’s Republic of China; 2Department of Ultrasound Medicine, Beijing Chaoyang Hospital, Capital Medical University, Beijing, 100020, People’s Republic of China; 3Department of Ultrasound, Beijing Shijitan Hospital, Capital Medical University, Beijing, 100038, People’s Republic of China; 4Department of Endocrinology, Beijing Shijitan Hospital, Capital Medical University, Beijing, 100038, People’s Republic of China; 5Department of Radiology, Beijing Chaoyang Hospital, Capital Medical University, Beijing, 100043, People’s Republic of China*These authors contributed equally to this workCorrespondence: Xuechao DuDepartment of Radiology, Beijing Chaoyang Hospital, Capital Medical University, 5 Jingyuan Road, Shijingshan District, Beijing, 100043, People’s Republic of ChinaTel +86 13552588221Email duxuechao@ccmu.edu.cnObjective: To explore potential effects of pancreatic fat content measured by computed tomography (CT) on carotid plaque in patients with type 2 diabetes mellitus (T2DM).Methods: T2DM patients who underwent an un-enhanced CT scan of the upper abdomen and ultrasound of the carotid artery were enrolled. The patients were divided into a non-plaque group and a plaque group (including hypoechoic plaque subgroup and non-hypoechoic plaque subgroup). The CT attenuation of pancreas and spleen were measured. Pancreas-to-spleen attenuation ratio (P/S) and the difference between pancreatic and splenic attenuation (P-S) were calculated. The cutoff values of P/S and P-S were obtained using receiver operating characteristic curves. Logistic regression models were used to evaluate association of P/S or P-S with carotid plaque or hypoechoic plaque.Results: 337 patients were enrolled, including 101 cases in the non-plaque group, 146 cases in the hypoechoic plaque subgroup, and 90 cases in the non-hypoechoic plaque subgroup. P/S and P-S in hypoechoic plaque group were lower than those in non-plaque group, with a cutoff value of P/S and P-S as 0.72 and − 13.33, respectively. After adjusting for risk factors, P/S and P-S correlated with carotid plaque [for low P/S: OR (95% CI): 3.15 (1.47– 6.73), P = 0.0031; for low P-S: OR (95% CI): 2.84 (1.42– 5.66), P = 0.0031] as well as carotid hypoechoic plaque [for low P/S: OR (95% CI): 1.82 (1.07– 3.08), P = 0.0259; for low P-S: OR (95% CI): 1.82 (1.09– 3.02), P = 0.021].Conclusion: T2DM patients with hypoechoic carotid plaque have higher pancreatic fat content than those without. Pancreatic steatosis correlates with carotid plaque and hypoechoic plaque in T2DM patients.Keywords: atherosclerosis, computed tomography, diabetes mellitus, pancreatic steatosis
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- 2021
4. Association of six-minute walk distance with subsequent lower extremity events in peripheral artery disease
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Michael H. Criqui, Lihui Zhao, Lingyu Li, Luigi Ferrucci, Dongxue Zhang, Pooja Nayak, Lu Tian, Melina R. Kibbe, Jack M. Guralnik, Mary M. McDermott, and Tamar S. Polonsky
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Male ,Longitudinal study ,medicine.medical_specialty ,Time Factors ,Critical Illness ,medicine.medical_treatment ,Walk Test ,Disease ,Severity of Illness Index ,Amputation, Surgical ,Peripheral Arterial Disease ,Ischemia ,Predictive Value of Tests ,Risk Factors ,Internal medicine ,medicine ,Humans ,Ankle Brachial Index ,Longitudinal Studies ,Peripheral artery disease (PAD) ,Adverse effect ,Aged ,Aged, 80 and over ,Exercise Tolerance ,business.industry ,Medical record ,Confounding ,Critical limb ischemia ,Middle Aged ,Prognosis ,medicine.disease ,Lower Extremity ,Amputation ,Disease Progression ,Cardiology ,Female ,medicine.symptom ,Cardiology and Cardiovascular Medicine ,business ,Vascular Surgical Procedures ,human activities - Abstract
The prognostic significance of the six-minute walk distance for lower extremity events in people with peripheral artery disease (PAD) is unknown. This longitudinal study assessed whether a poorer six-minute walk distance at baseline was associated with higher rates of subsequent lower extremity atherosclerotic disease events in PAD. A total of 369 patients (mean age 69.4 ± 10.0 years; mean ankle–brachial index (ABI) 0.67 ± 0.17; 31% women; 30% black individuals) from Chicago-area medical centers with PAD were enrolled. Participants underwent baseline six-minute walk testing and returned for annual study visits. Lower extremity events consisted of one or more of the following: ABI decline greater than 15% or medical record adjudicated lower extremity revascularization, critical limb ischemia, or amputation. At a mean follow-up of 33.3 months, lower extremity events occurred in 66/123 (53.7%) people in the first (worst) tertile of six-minute walk performance, 55/124 (44.4%) in the second tertile, and 56/122 (45.9%) in the third (best) tertile. After adjusting for age, sex, race, ABI, comorbidities, and other confounders, participants in the first (worst) tertile of six-minute walk distance at baseline had higher rates of lower extremity events during follow-up, compared to those in the best tertile at baseline (HR = 1.74, 95% CI 1.17–2.60, p = 0.0067). Among people with PAD, a poorer six-minute walk distance was associated with higher rates of subsequent lower extremity PAD-related events after adjusting for confounders. Further study is needed to determine whether interventions that improve six-minute walk distance can reduce lower extremity adverse events in people with PAD.
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- 2020
5. DNMT3A regulates differentiation of osteoblast and autophagy of vascular smooth muscle cells in vascular medial calcification induced by high phosphorus through ERK1/2 signaling
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Wei Zhou, Yaling Bai, Huiran Zhang, Xiaoying Ma, Jingjing Jin, Shenglei Zhang, Lei He, Dongxue Zhang, Jinsheng Xu, and Meijuan Cheng
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medicine.medical_specialty ,autophagy ,Vascular smooth muscle ,Cell ,chemistry.chemical_element ,Calcium ,End stage renal disease ,Internal medicine ,medicine ,T1-995 ,TX341-641 ,medial vascular calcification ,Von Kossa stain ,Technology (General) ,ERK1/2 ,Nutrition. Foods and food supply ,Chemistry ,Osteoblast ,medicine.disease ,RUNX2 ,medicine.anatomical_structure ,Endocrinology ,osteoblast differentiation ,embryonic structures ,DNMT3A ,Food Science ,Biotechnology ,Calcification - Abstract
To investigate the effect of DNMT3A in vascular calcification (VC) induced by high phosphorus. The arterial tissues of 12 patients with end stage renal disease (ESRD) and VC and 12 patients with ESRD without VC were collected. Rat vascular smooth muscle cells (VSMCs) were divided into control group, high phosphorus (P) group, P + DMSO group, p-ERK1/2 inhibitor group, DNMT3A group and DNMT3A + P group and P + shRNA-DNMT3A group. Vascular calcification was evaluated by von kossa staining. Cell calcification was evaluated by alizarin red staining. The calcium content was assessed by calcium determination kit. The levels of DNMT3A, Runx2, LC3 and p-ERK1/2 were significantly up-regulated in CKD patients with VC in comparison with those in CKD patients without VC(p
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- 2022
6. Multiparameter MRI Model With DCE-MRI, DWI, and Synthetic MRI Improves the Diagnostic Performance of BI-RADS 4 Lesions
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Lisha Nie, Dongxue Zhang, Chengde Liao, Zhuolin Li, Yifan Liu, Jia Zhang, Shi Yun Sun, and Yingying Ding
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Cancer Research ,medicine.diagnostic_test ,business.industry ,Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,Magnetic resonance imaging ,BI-RADS ,Logistic regression ,medicine.disease ,synthetic magnetic resonance imaging (syMRI) ,Breast cancer ,breast cancer ,Oncology ,Region of interest ,quantitative imaging ,Biopsy ,Medicine ,Effective diffusion coefficient ,mapping ,business ,Nuclear medicine ,relaxation time ,RC254-282 ,Original Research ,Diffusion MRI - Abstract
ObjectivesTo evaluate the value of synthetic magnetic resonance imaging (syMRI), diffusion-weighted imaging (DWI), DCE-MRI, and clinical features in breast imaging–reporting and data system (BI-RADS) 4 lesions, and develop an efficient method to help patients avoid unnecessary biopsy.MethodsA total of 75 patients with breast diseases classified as BI-RADS 4 (45 with malignant lesions and 30 with benign lesions) were prospectively enrolled in this study. T1-weighted imaging (T1WI), T2WI, DWI, and syMRI were performed at 3.0 T. Relaxation time (T1 and T2), apparent diffusion coefficient (ADC), conventional MRI features, and clinical features were assessed. “T” represents the relaxation time value of the region of interest pre-contrast scanning, and “T+” represents the value post-contrast scanning. The rate of change in the T value between pre- and post-contrast scanning was represented by ΔT%.ResultsΔT1%, T2, ADC, age, body mass index (BMI), menopause, irregular margins, and heterogeneous internal enhancement pattern were significantly associated with a breast cancer diagnosis in the multivariable logistic regression analysis. Based on the above parameters, four models were established: model 1 (BI-RADS model, including all conventional MRI features recommended by BI-RADS lexicon), model 2 (relaxation time model, including ΔT1% and T2), model 3 [multi-parameter (mp)MRI model, including ΔT1%, T2, ADC, margin, and internal enhancement pattern], and model 4 (combined image and clinical model, including ΔT1%, T2, ADC, margin, internal enhancement pattern, age, BMI, and menopausal state). Among these, model 4 has the best diagnostic performance, followed by models 3, 2, and 1.ConclusionsThe mpMRI model with DCE-MRI, DWI, and syMRI is a robust tool for evaluating the malignancies in BI-RADS 4 lesions. The clinical features could further improve the diagnostic performance of the model.
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- 2021
7. MicroRNA-103a regulates the calcification of vascular smooth muscle cells by targeting runt-related transcription factor 2 in high phosphorus conditions
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Jinsheng Xu, Huiran Zhang, Wei Zhou, Lu Zhang, Yaling Bai, Meijuan Cheng, Shenglei Zhang, Dongxue Zhang, and Lei He
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Regulation of gene expression ,Cancer Research ,Vascular smooth muscle ,Oncogene ,β-glycerophosphate ,Transdifferentiation ,General Medicine ,Articles ,Biology ,medicine.disease ,runt-related transcription factor 2 ,microRNAs ,RUNX2 ,calcification ,Immunology and Microbiology (miscellaneous) ,Downregulation and upregulation ,microRNA ,Cancer research ,medicine ,vascular smooth muscle cells ,chronic kidney disease ,Calcification - Abstract
Vascular calcification, such as atherosclerosis, is a serious complication of chronic kidney disease that is characterized by tunica media calcification, and has gained increasing attention from researchers. The commonly observed association between vascular calcification and osteoporosis suggests a link between bone and vascular disorders. As microRNAs (miRNAs) have a wide range of gene regulation functions, such as cell proliferation, apoptosis, stress and transdifferentiation, the current study aimed to determine whether miRNAs play a vital role in the calcification and osteoblastic differentiation of rat thoracic aorta vascular smooth muscle cells (VSMCs). Gene expression analysis was performed on seven miRNAs (miR-29a, -30b, -103a, -125b, -133a, -143 and -211) that maybe potentially involved in the differentiation of smooth muscle cells into osteoblastic cells. The results showed that the levels of miR-29a, -30b, -103a, -125b and -143 were markedly reduced in the VSMC calcification model, particularly miR-103a, whereas runt-related transcription factor 2 (RUNX2) expression was increased. Furthermore, it was found that the expression of RUNX2 was significantly decreased following the upregulation of miR-103a, and that the expression of RUNX2 was significantly increased by downregulating miR-103a in VSMCs. Therefore, it was concluded that miR-103a plays a notable role in the transdifferentiation of the VSMCs in high phosphorus-induced calcification by targeting the regulation of RUNX2, and may therefore constitute a new target for the diagnosis and treatment of vascular calcification.
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- 2021
8. Chronic Periodontitis is a Risk Factor of Renal Dysfunction in Patients with Type 2 Diabetes
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Ran Miao, Dongxue Zhang, Yufeng Li, Lei Wang, Zuomin Wang, Xuan Zhou, Haiyan Wang, and Wenyan Liu
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Adult ,Male ,medicine.medical_specialty ,Endocrinology, Diabetes and Metabolism ,Type 2 diabetes ,Severe periodontitis ,Gastroenterology ,Diabetic nephropathy ,03 medical and health sciences ,0302 clinical medicine ,Endocrinology ,Risk Factors ,Internal medicine ,Internal Medicine ,medicine ,Humans ,Diabetic Nephropathies ,In patient ,030212 general & internal medicine ,Risk factor ,Aged ,Glycated Hemoglobin ,Periodontitis ,business.industry ,Type 2 Diabetes Mellitus ,030206 dentistry ,General Medicine ,Middle Aged ,medicine.disease ,Chronic periodontitis ,Diabetes Mellitus, Type 2 ,Chronic Periodontitis ,Female ,business - Abstract
Background This study explores the association between chronic periodontitis and renal dysfunction in type 2 diabetic mellitus (T2DM) patients. Methods An observational study was conducted in 169 T2DM patients with chronic periodontitis. Patients were divided into 2 groups according to presence of normal renal function (n=111) and renal dysfunction (n=58), and oral health behavior-related variables were obtained by questionnaire. Periodontal status was examined, and pocket probing depth (PD), clinical attachment level (CAL), and bleeding index (BI) were measured. Results The severe periodontitis group had a significant higher HbA1c level (8.53 ± 1.61%) as compared with the mild and moderate periodontitis groups (7.68±1.58%) and (7.35±1.45%), P=0.001. Compared with patients with normal renal function, patients with renal dysfunction had a higher PD value, higher CAL value, fewer remaining teeth, and were less likely to have remaining teeth ≥20. The percentage of sites with PD ≥4 mm (52.8% vs. 41.67%) was significantly greater in patients with renal dysfunction. There was no difference in the scores of oral health knowledge assessment between the 2 groups. After adjustment by gender, age, BMI, smoking, hypertension, and HbA1c, the percentage of the sites with PD≥4 mm was an independent risk factor of renal dysfunction in T2DM patients. Conclusion In patients with T2DM, those with periodontitis may be more susceptible to decreased kidney function.
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- 2019
9. Abstract P144: One-year Change In Walking Performance And Mobility Loss In People With Peripheral Artery Disease: The Walking And Leg Circulation Study (walcs)
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Lu Tian, Michael M Hammond, Mary M. McDermott, Lihui Zhao, and Dongxue Zhang
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education.field_of_study ,medicine.medical_specialty ,business.industry ,Arterial disease ,Population ,Disease ,medicine.disease ,Physiology (medical) ,Internal medicine ,Cardiology ,Medicine ,Circulation (currency) ,Peripheral artery disease (PAD) ,Cardiology and Cardiovascular Medicine ,business ,education ,human activities - Abstract
Introduction: Peripheral artery disease (PAD) affects 10-15% of people age 65 and older, and the prevalence is expected to rise as the population ages. People with PAD have greater functional impairment and faster decline in walking performance than people without PAD. Objectives: To determine the association between 1-year change in walking performance and mobility loss. We hypothesized that greater declines in walking performance over one year would be associated with higher rates of mobility loss. Methods: Participants underwent measurement of 6-minute walk and 4-meter walking velocity at baseline, and returned yearly for repeat measurement of walking performance and assessment of mobility. Participants were categorized into tertiles based on their 1-year change in walking performance (Tertile 1: greatest decline). Mobility loss was defined as becoming newly unable to walk one-quarter mile or walk up and down 1 flight of stairs without assistance after the 1-year follow-up. We used Cox proportional hazards models to examine the association between 1-year change in walking performance and mobility loss, adjusting for potential confounders. Results: 907 participants with PAD (mean age 71 +/- 9 years, 40% female, 23% black) were included. Median follow-up time was 38 months. Participants in Tertile 1 were older (mean 73 ± 9 years compared to 71 ± 9 in Tertile 2, and 70 ± 9 in Tertile 3; p=0.0004), had lower ABI (p=0.001), and included a higher prevalence of female (42% vs. 40% in Tertile 2, and 37% in Tertile 3; p=0.36). Participants with greater decline in 6-minute walk at 1-year follow-up had higher rates of mobility loss than participants with less decline. No significant associations of change in 4-meter walking speed and mobility loss were observed (Table). Conclusion: Among people with PAD, greater 1-year declines in six-minute walk distance are associated with higher rates of mobility loss. Further study is needed to determine whether interventions that prevent decline in six-minute walk can also prevent mobility loss.
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- 2021
10. Sustained physical activity in peripheral artery disease: Associations with disease severity, functional performance, health-related quality of life, and subsequent serious adverse events in the LITE randomized clinical trial
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Diane Treat-Jacobson, Melina R. Kibbe, Lihui Zhao, Christiaan Leeuwenburgh, Mary M. McDermott, Jack M. Guralnik, Dongxue Zhang, Bonnie Spring, Tamar S. Polonsky, Todd M. Manini, Lu Tian, Lydia A. Bazzano, Robert L. Sufit, Daniel E. Forman, Michael H. Criqui, Joshua T. Slysz, W. Jack Rejeski, and Luigi Ferrucci
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medicine.medical_specialty ,Arterial disease ,Physical activity ,Disease ,Walking ,Severity of Illness Index ,law.invention ,Peripheral Arterial Disease ,Randomized controlled trial ,law ,Internal medicine ,medicine ,Humans ,Ankle Brachial Index ,Peripheral artery disease (PAD) ,Adverse effect ,Exercise ,Health related quality of life ,business.industry ,Physical Functional Performance ,medicine.disease ,Clinical trial ,Cross-Sectional Studies ,Quality of Life ,Cardiology and Cardiovascular Medicine ,business - Abstract
This study investigated cross-sectional associations of peripheral artery disease (PAD) severity (defined by the ankle–brachial index (ABI)) and amounts of daily sustained physical activity (PA) (defined as > 100 activity counts per minute lasting 5 consecutive minutes or more). This study also investigated associations of amounts of daily sustained PA with 6-minute walk (6MW) distance and the Short Form-36 physical functioning domain (SF-36 PF) score in cross-sectional analyses and with serious adverse events (SAEs) in longitudinal analyses of people with PAD. PA was measured continuously for 10 days using a tri-axial accelerometer at baseline in 277 participants with PAD randomized to the LITE clinical trial. In regression analyses, each 0.15 lower ABI value was associated with a 5.67% decrease in the number of daily bouts of sustained PA (95% CI: 3.85–6.54; p < 0.001). Every additional bout of sustained PA per day was associated with a 4.56-meter greater 6MW distance (95% CI: 2.67–6.46; p < 0.0001), and a 0.81-point improvement in SF-36 PF score (95% CI: 0.34–1.28; p < 0.001). Participants with values of daily bouts of sustained PA below the median had higher rates of SAEs during follow-up, compared to participants above the median (41% vs 24%; p = 0.002). In conclusion, among participants with PAD, lower ABI values were associated with fewer bouts of daily sustained PA. A greater number of bouts of daily sustained PA were associated with better 6MW performance and SF-36 PF score, and, in longitudinal analyses, lower rates of SAEs. Clinicaltrials.gov ID: NCT02538900.
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- 2021
11. Computed Tomography-Estimated Pancreatic Steatosis is a Risk Factor for Carotid Plaque in Type 2 Diabetes Mellitus Patients: A Cross-Sectional Study
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Rengui Wang, Dongxue Zhang, Chunzhi Fan, Xiaoli Sun, Tongwei Chu, Pengtao Sun, and Xuechao Du
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medicine.medical_specialty ,medicine.diagnostic_test ,business.industry ,Cross-sectional study ,Internal medicine ,medicine ,Type 2 Diabetes Mellitus ,Computed tomography ,Steatosis ,Risk factor ,medicine.disease ,business ,Gastroenterology - Abstract
Background Pancreatic steatosis correlates with the thickness of arterial intima. However, the correlation between pancreatic steatosis and carotid atherosclerosis plaque, which better predict the prognosis of cardiovascular disease, is unclear. We aimed to explore potential effects of pancreatic fat content measured by computer tomography (CT) on carotid plaque in patients with type 2 diabetes mellitus (T2DM).Methods Patients with T2DM who underwent CT scan of the upper abdomen and ultrasound of the carotid artery were consecutively enrolled. Based on ultrasound results, the patients were divided into non-plaque group and plaque group, and the latter was categorized into hypoechoic plaque subgroup and non-hypoechoic plaque subgroup. The CT attenuation of pancreas and spleen were measured. Pancreas-to-spleen attenuation ratio (P/S) and difference between pancreatic and splenic attenuation (P-S) were calculated. The cut-off values of P/S and P-S were obtained using receiver operating characteristic (ROC) curves. Logistic regression models were used to evaluate association of P/S or P-S with carotid plaque or hypoechoic plaque.Results A total of 337 patients with T2DM were enrolled, including 101 cases (30.0%) in the non-plaque group, 146 cases (43.3%) in the hypoechoic plaque subgroup, and 90 cases (26.7%) in the non-hypoechoic plaque subgroup. P/S and P-S in plaque group were lower than those in non-plaque group, with a cut-off value of P/S and P-S as 0.72 and -13.33, respectively. After adjusting for risk factors, P/S and P-S correlated with carotid plaque [for low P/S: OR (95% CI): 3.15 (1.47-6.73), P=0.0031; for low P-S: OR (95% CI): 2.84 (1.42-5.66), P=0.0031] as well as carotid hypoechoic plaque [for low P/S: OR (95% CI): 1.82 (1.07-3.08), P=0.0259; for low P-S: OR (95% CI): 1.82 (1.09-3.02), P=0.021].Conclusions T2DM patients with carotid plaque have higher pancreatic fat content than those without. Pancreatic steatosis correlates with carotid plaque and hypoechoic plaque in T2DM patients.
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- 2020
12. Identification of a genome-wide serum microRNA expression profile as potential noninvasive biomarkers for chronic kidney disease using next-generation sequencing
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Lei He, Jinsheng Xu, Weijie Wang, Xinying Liu, Huiran Zhang, Shenglei Zhang, Dongxue Zhang, Wei Zhou, and Yaling Bai
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0301 basic medicine ,Medicine (General) ,Bioinformatics ,Biochemistry ,Genome ,DNA sequencing ,Pre-Clinical Research Report ,03 medical and health sciences ,R5-920 ,0302 clinical medicine ,Chronic kidney disease ,noninvasive ,microRNA ,medicine ,Biomarkers, Tumor ,Humans ,Renal Insufficiency, Chronic ,Serum microrna ,Noninvasive biomarkers ,business.industry ,Gene Expression Profiling ,Biochemistry (medical) ,High-Throughput Nucleotide Sequencing ,Cell Biology ,General Medicine ,primary glomerulonephritis ,medicine.disease ,Serum samples ,MicroRNAs ,030104 developmental biology ,030220 oncology & carcinogenesis ,Biomarker (medicine) ,biomarker ,next-generation sequencing ,business ,Biomarkers ,Kidney disease - Abstract
Objective To identify serum microRNAs (miRNAs) as potential non-invasive biomarkers for patients with chronic kidney disease (CKD). Methods We collected serum samples from healthy controls, CKD stage 1 (CKD1), and stage 5 (CKD5) patients with primary glomerulonephritis (GN), screened differentially expressed miRNAs (DEMs) using next-generation sequencing (NGS), and confirmed the sequencing data using quantitative reverse transcriptase polymerase chain reaction (qRT-PCR). Results We identified 20 and 42 DEMs in the CKD1 and CKD5 patients compared with the controls, respectively, and 70 DEMs in the CKD5 compared with the CKD1 patients. The qRT-PCR results showed that miR-483-5p was up-regulated in the CKD1 and CKD5 patients compared with controls (fold change = 2.56 and 18.77, respectively). miR-363-3p was down-regulated in the CKD5 patients compared with the controls and CKD1 patients (fold change = 0.27 and 0.48, respectively). Conclusion We identified a genome-wide serum miRNA expression profile in CKD patients, and serum miR-483-5p and miR-363-3p may act as potential diagnostic biomarkers for CKD.
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- 2020
13. Microfluidic filter device coupled mass spectrometry for rapid bacterial antimicrobial resistance analysis
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Fan Yin, Yijie Zhang, Baohong Liu, Hongyan Bi, Dongxue Zhang, Liang Qiao, and Qin Qin
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Time Factors ,medicine.drug_class ,Cephalosporin ,Antibiotics ,Drug resistance ,Microbial Sensitivity Tests ,medicine.disease_cause ,Biochemistry ,Mass Spectrometry ,Analytical Chemistry ,Microbiology ,03 medical and health sciences ,Antibiotic resistance ,Ampicillin ,Lab-On-A-Chip Devices ,Drug Resistance, Bacterial ,Electrochemistry ,medicine ,Escherichia coli ,Environmental Chemistry ,Spectroscopy ,030304 developmental biology ,0303 health sciences ,biology ,030306 microbiology ,Chemistry ,biology.organism_classification ,Anti-Bacterial Agents ,Ceftriaxone ,Bacteria ,medicine.drug - Abstract
The problem of antimicrobial resistance (AMR) is becoming increasingly serious. Bacteria producing extended spectrum beta-lactamase (ESBL), which can hydrolyze beta-lactam antibiotics, are among the most important drug resistant bacteria. Rapid AMR analysis methods are essential for identifying antibiotic resistant bacteria, which is of significant positive value to the clinical therapy of infectious disease. We developed a platform which integrates a sandwich microfluidic filter device with electrospray ionization mass spectrometry (ESI-MS). Bacterial cells were loaded in the sandwich microfluidic chip and antibiotic drugs were injected to pass through the blocked bacterial cells. By online ESI-MS analysis of the antibiotic drugs and their hydrolysis products, the AMR of the bacteria can be assessed within 30 minutes. Four Escherichia coli strains, namely two ESBL-positive and two ESBL-negative, were successfully discriminated using ampicillin and the third generation cephalosporin ceftriaxone. Considering the simplicity and high efficiency of the assay, the microfluidic chip integrated online ESI-MS system is promising in the rapid clinical diagnosis of ESBL-producing bacteria.
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- 2020
14. Effectiveness of a Home-Based Exercise Program on Walking Ability in Patients With Peripheral Artery Disease—The HONOR Trial
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Elizabeth A. Hahn, Michael H. Criqui, Heather L. Gornik, Jeffrey S. Berger, Christopher L. Skelly, Jack M. Guralnik, Tamar S. Polonsky, Dongxue Zhang, Mary M. McDermott, Lu Tian, Donald M. Lloyd-Jones, Lingyu Li, Michael S. Conte, Bonnie Spring, Mark A. Creager, W. Jack Rejeski, Walter J. McCarthy, Peter K. Henke, Debra Kohlman-Trigoboff, Lihui Zhao, Luigi Ferrucci, Diane Treat-Jacobson, and Melina Kibbe
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medicine.medical_specialty ,business.industry ,Arterial disease ,Honor ,Physical therapy ,Medicine ,In patient ,Disease ,business ,Home based exercise - Published
- 2020
15. Comparing 6-minute walk versus treadmill walking distance as outcomes in randomized trials of peripheral artery disease
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Kathryn Domanchuk, Lu Tian, Dongxue Zhang, Robert L. Sufit, Michael S. Conte, Melina R. Kibbe, Jack M. Guralnik, Mary M. McDermott, Michael H. Criqui, Lihui Zhao, Tamar S. Polonsky, Lingyu Li, Luigi Ferrucci, and Christiaan Leeuwenburgh
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Male ,medicine.medical_specialty ,Arterial disease ,Clinical Trials and Supportive Activities ,6-Minute walk ,Walk Test ,030204 cardiovascular system & hematology ,Placebo ,Cardiovascular ,Treadmill walking ,Medical and Health Sciences ,Article ,law.invention ,03 medical and health sciences ,Peripheral Arterial Disease ,0302 clinical medicine ,Physical medicine and rehabilitation ,Clinical trials ,Randomized controlled trial ,law ,Clinical Research ,Medicine ,Humans ,030212 general & internal medicine ,Aged ,Randomized Controlled Trials as Topic ,Disability ,Peripheral artery disease ,business.industry ,Rehabilitation ,Functional status ,Confidence interval ,Intermittent claudication ,6 minute walk ,Clinical trial ,Cardiovascular System & Hematology ,Exercise Test ,Surgery ,Female ,medicine.symptom ,Cardiology and Cardiovascular Medicine ,business ,human activities - Abstract
BackgroundRandomized trials of people with peripheral artery disease (PAD) and intermittent claudication have traditionally used maximal treadmill walking distance as the primary outcome, but the 6-minute walk test is increasingly used as a primary outcome in randomized trials of PAD. This study compared relative changes in maximal treadmill walking distance versus 6-minute walk distance in response to a therapeutic intervention or control in randomized trials of participants with PAD.MethodsData from four randomized trials of therapeutic interventions in participants with PAD that measured both 6-minute walk and treadmill walking performance at baseline and the 6-month follow-up were combined. Two trials studied supervised treadmill exercise, one studied home-based walking exercise, and one studied resveratrol.ResultsOf 467 participants (mean age, 69.8; standard deviation, 9.7), the mean ankle-brachial index was 0.66 (standard deviation, 0.17). At the 6-month follow-up, participants with PAD randomized to control or placebo significantly declined in 6-minute walk distance (-10.2m; 95% confidence interval, -18.2 to -2.2; P= .013), but improved maximal treadmill walking distance (+25.7m; 95% CI,+6.0 to+45.3m; P= .010; difference between change in 6-minute walk versus maximal treadmill walking distance: -37.3m; 95% CI, -56.4 to -18.2; P< .001). Home-based exercise improved the 6-minute walk distance by 43.2m (95% CI,+28.4 to+57.9), and supervised treadmill exercise improved the 6-minute walk distance by 25.0m (95% CI,+14.7 to+35.2; mean difference,+18.2m favoring home-based exercise [95% CI,+0.2 to+36.2m; P= .048]). Among all participants, the presence (vs absence) of treadmill exercise training was associated with a 141.3-m greater improvement in maximal treadmill walking distance compared to 6-minute walk distance (95% CI, 88.2-194.4; P< .001), suggesting a benefit from treadmill training on the treadmill outcome.ConclusionsMaximal treadmill walking distance and the 6-minute walk distance are not interchangeable outcomes in participants with PAD. Participants with PAD randomized to control groups improved treadmill walking distance but simultaneously meaningfully declined in 6-minute walk distance. Supervised treadmill exercise training amplified improvement in treadmill walking distance because of a training to the outcome measure phenomenon.
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- 2020
16. Cocoa to Improve Walking Performance in Older People With Peripheral Artery Disease: The COCOA-PAD Pilot Randomized Clinical Trial
- Author
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Charlotte A. Peterson, Mary M. McDermott, Christiaan Leeuwenburgh, Tamar S. Polonsky, Kate Kosmac, Luigi Ferrucci, Melina R. Kibbe, James H. Stein, Jack M. Guralnik, Dongxue Zhang, Robert L. Sufit, Michael H. Criqui, Christopher M. Kramer, Linda Van Horn, Lihui Zhao, Kathryn Domanchuk, Donald M. Lloyd-Jones, Francisco Villarreal, Lu Tian, and Lingyu Li
- Subjects
Male ,Physiology ,Arterial disease ,Disease ,Walking ,Cardiorespiratory Medicine and Haematology ,Cardiovascular ,Catechin ,law.invention ,Randomized controlled trial ,law ,80 and over ,Chocolate ,Aged, 80 and over ,clinical trial ,Skeletal ,intermittent claudication ,mitochondria ,6.1 Pharmaceuticals ,Cardiology ,Muscle ,Female ,muscles ,medicine.symptom ,Cardiology and Cardiovascular Medicine ,medicine.medical_specialty ,Clinical Trials and Supportive Activities ,Clinical Sciences ,peripheral artery disease ,Electron Transport Complex IV ,Beverages ,Peripheral Arterial Disease ,Double-Blind Method ,Clinical Research ,Internal medicine ,Complementary and Integrative Health ,Limb perfusion ,medicine ,Humans ,Muscle, Skeletal ,Aged ,business.industry ,Prevention ,Evaluation of treatments and therapeutic interventions ,Intermittent claudication ,Clinical trial ,Cardiovascular System & Hematology ,Calf muscle ,Regional Blood Flow ,Older people ,business - Abstract
Rationale: Cocoa and its major flavanol component, epicatechin, have therapeutic properties that may improve limb perfusion and increase calf muscle mitochondrial activity in people with lower extremity peripheral artery disease (PAD). Objective: In a phase II randomized clinical trial, to assess whether 6 months of cocoa improved walking performance in people with PAD, compared with placebo. Methods and Results: Six-month double-blind, randomized clinical trial in which participants with PAD were randomized to either cocoa beverage versus placebo beverage. The cocoa beverage contained 15 g of cocoa and 75 mg of epicatechin daily. The identical appearing placebo contained neither cocoa nor epicatechin. The 2 primary outcomes were 6-month change in 6-minute walk distance measured 2.5 hours after a study beverage at 6-month follow-up and 24 hours after a study beverage at 6-month follow-up, respectively. A 1-sided P P =0.005) at 2.5 hours after a final study beverage and by 18.0 m ([90% CI, −1.7 to +∞] P =0.12) at 24 hours after a study beverage, compared with placebo. In calf muscle biopsies, cocoa improved mitochondrial COX (cytochrome c oxidase) activity ( P =0.013), increased capillary density ( P =0.014), improved calf muscle perfusion ( P =0.098), and reduced central nuclei ( P =0.033), compared with placebo. Conclusions: These preliminary results suggest a therapeutic effect of cocoa on walking performance in people with PAD. Further study is needed to definitively determine whether cocoa significantly improves walking performance in people with PAD. Clinical Trial Registration: URL: http://www.clinicaltrials.gov . Unique identifier: NCT02876887. Visual Overview: An online visual overview is available for this article.
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- 2020
17. Decision-Making-Based Modeling of Auxiliary Diagnosis of Ischemic Stroke in Recovery Period
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Xiaomin Zhu, Dongxue Zhang, Zhihui Huang, and Hui Wang
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Rehabilitation hospital ,medicine.medical_specialty ,business.industry ,Medical record ,Encephalopathy ,Traditional Chinese medicine ,medicine.disease ,Recovery period ,Clinical diagnosis ,Emergency medicine ,Ischemic stroke ,medicine ,cardiovascular diseases ,business ,Stroke - Abstract
Objective: In this study, the clinical case data of patients with ischemic stroke in the recovery period are established to establish a clinical Chinese medicine clinical diagnosis model of ischemic stroke. Screening data of 654 effective medical records from the recovery period of ischemic stroke in a department of encephalopathy in a rehabilitation hospital in Fujian, constructing a decision tree-assisted diagnosis model of the recovery period of ischemic stroke, and improving the accuracy of clinical diagnosis of recovery period of ischemic stroke.
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- 2020
18. Application of health quotient to enhance chronic periodontitis treatments
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Dongxue Zhang, Ruijuan Bai, Zhaoxia Zhang, Dong Zhao, Mei Lin, Zuomin Wang, and Jing Fan
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medicine.medical_specialty ,Test group ,Medicine (miscellaneous) ,Health knowledge ,Oral health ,health quotient ,03 medical and health sciences ,0302 clinical medicine ,Internal medicine ,HQ ,Medicine ,030212 general & internal medicine ,Pharmacology, Toxicology and Pharmaceutics (miscellaneous) ,Original Research ,systemic inflammation ,business.industry ,Health Policy ,chronic periodontitis ,030206 dentistry ,medicine.disease ,Mental health ,Chronic periodontitis ,Patient Preference and Adherence ,oral health ,business ,Social Sciences (miscellaneous) - Abstract
Zhaoxia Zhang,* Dong Zhao,* Mei Lin, Dongxue Zhang, Ruijuan Bai, Jing Fan, Zuomin Wang Department of Stomatology, Beijing Chaoyang Hospital, Capital Medical University, Beijing, People’s Republic of China *These authors contributed equally to this work Objectives: Based on the concept of health quotient (HQ), we designed and facilitated personalized plans to improve patients’ compliance and oral health. The study aims to increase HQ level of patients with chronic periodontitis from four aspects, namely self-care, health knowledge, lifestyle, and mental health, and evaluate the effects of HQ training in maintaining oral health.Method: In total, 105 patients with chronic periodontitis were recruited from Capital Medical University-Affiliated Beijing Chaoyang Hospital from January 2015 to January 2017. The patients were randomly split into two groups (control versus test). All the patients received standard periodontal treatments. In addition, patients in the control group received conventional oral health instructions, and patients in the test group received the HQ training. At the end of the training, oral health status of both groups was evaluated and recorded.Results: The oral health status and the HQ scores were significantly better in the test group than the control group (P
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- 2018
19. The incessant increase curve during oral glucose tolerance tests in Chinese adults with type 2 diabetes and its association with gut hormone levels
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Zhen Wen, Yuyan Sun, Dongxue Zhang, and Tao Jiang
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Adult ,Male ,medicine.medical_specialty ,Physiology ,medicine.medical_treatment ,030209 endocrinology & metabolism ,Gastric Inhibitory Polypeptide ,Type 2 diabetes ,Biochemistry ,Gastrointestinal Hormones ,03 medical and health sciences ,Cellular and Molecular Neuroscience ,0302 clinical medicine ,Endocrinology ,Asian People ,Glucagon-Like Peptide 1 ,Diabetes mellitus ,Internal medicine ,medicine ,Humans ,Oral glucose tolerance ,Aged ,business.industry ,Insulin ,Area under the curve ,Chinese adults ,Glucose Tolerance Test ,Middle Aged ,medicine.disease ,Ghrelin ,Diabetes Mellitus, Type 2 ,Female ,Insulin Resistance ,business ,030217 neurology & neurosurgery ,Hormone - Abstract
Glucose curve shapes during oral glucose tolerance tests (OGTTs) are mainly classified as incessant increase, monophasic and biphasic. Youth with an incessant increase curve have worse β-cell function. The aim of this paper was to investigate the incessant increase curve in Chinese adults with type 2 diabetes (T2DM), and its association with β-cell function and gut hormone levels. Eighty-nine Chinese patients (59 males and 30 females) were included in this study with a mean age of 50.56 ± 16.00 years. They were all recently diagnosed with T2DM and underwent 180-min OGTTs. Data on demographics, β-cell function, and insulin sensitivity were also collected. Gut hormones, including glucagon-like peptide-1 (GLP-1), glucose-dependent insulinotropic polypeptide (GIP), and ghrelin, were also detected during the OGTT. A total of 39.3 % of subjects had an incessant increase in the glucose response curve, while 59.6 % had a monophasic curve. Because only one curve was classified as biphasic, patients with a biphasic curve were omitted from further research. Lower plasma C-peptide, HOMA2-β, area under the curve (AUC) of C-peptide, and ratio of AUC of insulin to AUC of glucose were found in patients with incessant increase curves compared to those with monophasic curves (P0.05). Higher glycated hemoglobin (HbA
- Published
- 2021
20. Effect of Low-Intensity vs High-Intensity Walking Exercise on Walk Distance in Patients With Peripheral Artery Disease—Reply
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Dongxue Zhang and Mary M. McDermott
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medicine.medical_specialty ,Exercise Tolerance ,Arterial disease ,business.industry ,Walk distance ,High intensity ,Walk Test ,Walking ,General Medicine ,Disease ,Intensity (physics) ,Peripheral Arterial Disease ,Walk test ,Internal medicine ,Cardiology ,medicine ,Humans ,In patient ,business - Published
- 2021
21. Comparison of a Single-Session Pain Management Skills Intervention With a Single-Session Health Education Intervention and 8 Sessions of Cognitive Behavioral Therapy in Adults With Chronic Low Back Pain
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Ming-Chih J. Kao, Kate Lorig, Sean Mackey, Kristen Slater, Dokyoung S. You, Lu Tian, Maisa S. Ziadni, Abby L Chen, Beth D. Darnall, Karon F. Cook, Heather Poupore-King, Dongxue Zhang, Anuradha Roy, Ryan T Keane, Ian G Mackey, and Juliette Hong
- Subjects
Male ,medicine.medical_specialty ,medicine.medical_treatment ,Psychological intervention ,law.invention ,Patient Education as Topic ,Randomized controlled trial ,law ,medicine ,Humans ,Pain Management ,Pain Measurement ,Sleep disorder ,Cognitive Behavioral Therapy ,business.industry ,Catastrophization ,Chronic pain ,General Medicine ,Middle Aged ,medicine.disease ,Intention to Treat Analysis ,Cognitive behavioral therapy ,Treatment Outcome ,Physical therapy ,Anxiety ,Empowerment ,Female ,Pain catastrophizing ,Health education ,Chronic Pain ,medicine.symptom ,business ,Low Back Pain - Abstract
Importance Chronic low back pain (CLBP), the most prevalent chronic pain condition, imparts substantial disability and discomfort. Cognitive behavioral therapy (CBT) reduces the effect of CLBP, but access is limited. Objective To determine whether a single class in evidence-based pain management skills (empowered relief) is noninferior to 8-session CBT and superior to health education at 3 months after treatment for improving pain catastrophizing, pain intensity, pain interference, and other secondary outcomes. Design, Setting, and Participants This 3-arm randomized clinical trial collected data from May 24, 2017, to March 3, 2020. Participants included individuals in the community with self-reported CLBP for 6 months or more and an average pain intensity of at least 4 (range, 0-10, with 10 indicating worst pain imaginable). Data were analyzed using intention-to-treat and per-protocol approaches. Interventions Participants were randomized to (1) empowered relief, (2) health education (matched to empowered relief for duration and format), or (3) 8-session CBT. Self-reported data were collected at baseline, before treatment, and at posttreatment months 1, 2, and 3. Main Outcomes and Measures Group differences in Pain Catastrophizing Scale scores and secondary outcomes at month 3 after treatment. Pain intensity and pain interference were priority secondary outcomes. Results A total of 263 participants were included in the analysis (131 women [49.8%], 130 men [49.4%], and 2 other [0.8%]; mean [SD] age, 47.9 [13.8] years) and were randomized into 3 groups: empowered relief (n = 87), CBT (n = 88), and health education (n = 88). Empowered relief was noninferior to CBT for pain catastrophizing scores at 3 months (difference from CBT, 1.39 [97.5% CI, -∞ to 4.24]). Empowered relief and CBT were superior to health education for pain catastrophizing scores (empowered relief difference from health education, -5.90 [95% CI, -8.78 to -3.01; P
- Published
- 2021
22. Type 2 diabetes mellitus is more prevalent among patients with thyroid carcinoma and influences overall survival: a propensity score matching analysis
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Tao Jiang, Xiao Zheng, Zhen Wen, Guo-Liang Qiao, and Dongxue Zhang
- Subjects
medicine.medical_specialty ,endocrine system diseases ,overall survival ,Prevalence ,T2DM ,030209 endocrinology & metabolism ,Thyroid carcinoma ,03 medical and health sciences ,0302 clinical medicine ,Beijing ,Internal medicine ,medicine ,030212 general & internal medicine ,business.industry ,PSM ,Thyroid ,nutritional and metabolic diseases ,Type 2 Diabetes Mellitus ,Cancer ,medicine.disease ,Surgery ,medicine.anatomical_structure ,Oncology ,Propensity score matching ,Cohort ,business ,TC ,Research Paper - Abstract
// Tao Jiang 1 , Guoliang Qiao 2 , Xiao Zheng 1 , Zhen Wen 1 and Dongxue Zhang 1 1 Department of Endocrinology, Beijing Shijitan Hospital, Capital Medical University, Beijing 100038, China 2 Department of Medical Oncology, Beijing Key Laboratory for Therapeutic Cancer Vaccines, Capital Medical University Cancer Center, Beijing Shijitan Hospital, Capital Medical University, Beijing 100038, China Correspondence to: Guoliang Qiao, email: qiaoguoliang611@sina.com Keywords: T2DM; overall survival; PSM; TC Received: June 20, 2017 Accepted: August 26, 2017 Published: October 31, 2017 ABSTRACT The relationship between Type 2 Diabetes Mellitus(T2DM) and cancer risk has been investigated for more than a decade. Many types of cancer were confirmed to be related with T2DM. The aim of this study is to identify the relationship between T2DM and the prevalence and long-term survivals of Thyroid Carcinoma(TC) using propensity score matching. In present study, 1658 thyroid nodule patients who were diagnosis in Beijing Shijitan hospital were divided into two groups: the TC group (N = 455, 27.4%), and the benign thyroid nodule(BTN) group (N = 1203, 73.6%). Propensity scores analyses were used to compare the overall survival (OS) and recurrence-free survival (RFS) between patients with or without T2DM. After propensity scores analyses, the prevalance of T2DM was significantly increased in the TC group compared with BTN group. Of the 455 TC patients, with T2DM in thyroid carcinoma was associated with increasing 1-, 3-, 5-year OS rates from 98.8, 76.5, and 70.9% to 99.7, 92.2, and 82.7%, respectively (P=0.017). While the 1-, 3-, and 5-year RFS rates in the group with T2DM were 92.3, 69.5, and 58.3%, which were significantly lower than those in the group without T2DM (97.6, 82.7, and 72.4%, P=0.009). After propensity scores analyses, with T2DM was significantly associated with increased risks of OS and RFS in the entire TC cohort.
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- 2017
23. Sevoflurane pre-conditioning increases phosphorylation of Erk1/2 and HO-1 expression via inhibition of mPTP in primary rat cortical neurons exposed to OGD/R
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Dongxue Zhang, Wen-Bo Sun, Limin Zhang, Xiao-Chun Zhao, and Xiao-Jing Jiang
- Subjects
Methyl Ethers ,MAP Kinase Signaling System ,Drug Evaluation, Preclinical ,Apoptosis ,Atractyloside ,Pharmacology ,medicine.disease_cause ,Mitochondrial Membrane Transport Proteins ,Neuroprotection ,Sevoflurane ,Rats, Sprague-Dawley ,Superoxide dismutase ,03 medical and health sciences ,chemistry.chemical_compound ,0302 clinical medicine ,030202 anesthesiology ,medicine ,Animals ,Enzyme Inhibitors ,Phosphorylation ,Cells, Cultured ,Cerebral Cortex ,Flavonoids ,Mitogen-Activated Protein Kinase 1 ,Neurons ,Mitogen-Activated Protein Kinase 3 ,biology ,Mitochondrial Permeability Transition Pore ,MPTP ,Cell Hypoxia ,Heme oxygenase ,Disease Models, Animal ,Glucose ,Neuroprotective Agents ,nervous system ,Neurology ,chemistry ,Mitochondrial permeability transition pore ,Anesthesia ,Heme Oxygenase (Decyclizing) ,Anesthetic ,Cyclosporine ,biology.protein ,Neurology (clinical) ,030217 neurology & neurosurgery ,Oxidative stress ,medicine.drug - Abstract
Background As an indispensable clinical inhalation anesthetic, sevoflurane is widely used for peri-operative sedation. The neuroprotective effect of sevoflurane pre-conditioning against cerebral ischemia/reperfusion has been gradually realized, but the underlying mechanism during the early reperfusion period has not been established. Method Primary cultured cortical neurons were treated with 2% sevoflurane pre-conditioning for 30 min, exposed to oxygen-glucose deprivation for 90 min, and followed by 60 min of reperfusion (OGD/R). Additionally, neuronal cells were treated with an inhibitor of extracellular signal–related kinases 1 and 2 (Erk1/2) phosphorylation (PD98059), a mPTP opener (atractyloside), or a mPTP opening inhibitor (cyclosporine A) before sevoflurane pre-conditioning. Result Sevoflurane pre-conditioning decreased neuronal apoptosis (assessed by TUNEL), oxidative stress (assessed by malondialdehyde [MDA], superoxide dismutase [SOD], and heme oxygenase [HO]-1), and opening of mitochondrial permeability transition pores [mPTPs] (assessed by calcein-cobalt), but increased neuronal viability (assessed by MTT) and mitochondrial membrane potential (assessed by JC-1) after OGD/R exposure compared with OGD/R treatment alone. Pre-treatment with the mPTP opener and inhibitor of Erk1/2 phosphorylation abolished the protective effect induced by sevoflurane pre-conditioning. Pre-treatment with the mPTP opener attenuated the phosphorylation of Erk1/2 in mitochondria of neuronal cultures exposed to OGD/R induced by sevoflurane pre-conditioning. The mPTP opening inhibitor, like sevoflurane pre-conditioning, increased phosphorylation of Erk1/2 after OGD/R exposure, while PD98059 failed to reverse inhibition of mPTP opening in cultures exposed to OGD/R induced by sevoflurane pre-conditioning. Conclusion The neuroprotective mechanism of sevoflurane pre-conditioning might be associated with increased Erk1/2 phosphorylation in mitochondria via inhibition of mPTP opening in the early reperfusion period.
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- 2017
24. Clinical characteristics and response to supervised exercise therapy of people with lower extremity peripheral artery disease
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Robert L. Sufit, Jack M. Guralnik, Lu Tian, Mary M. McDermott, Lihui Zhao, Christiaan Leeuwenburgh, Melina R. Kibbe, Michael H. Criqui, Kruti Patel, Tamar S. Polonsky, Luigi Ferrucci, and Dongxue Zhang
- Subjects
Male ,medicine.medical_specialty ,Time Factors ,Arterial disease ,Walk Test ,Disease ,030204 cardiovascular system & hematology ,law.invention ,03 medical and health sciences ,Peripheral Arterial Disease ,0302 clinical medicine ,Randomized controlled trial ,law ,Diabetes mellitus ,medicine ,Humans ,030212 general & internal medicine ,Set (psychology) ,Supervised exercise ,Aged ,Randomized Controlled Trials as Topic ,Exercise Tolerance ,business.industry ,Recovery of Function ,Middle Aged ,medicine.disease ,Confidence interval ,Intermittent claudication ,Exercise Therapy ,Treatment Outcome ,Lower Extremity ,Physical therapy ,Surgery ,Female ,medicine.symptom ,Cardiology and Cardiovascular Medicine ,business - Abstract
Among people with lower extremity peripheral artery disease (PAD), little is known about variation in response to supervised exercise therapy (SET). Clinical characteristics associated with greater responsiveness to SET have not been identified.Data from participants with PAD in two randomized clinical trials comparing SET vs nonexercising control were combined. The exercise intervention consisted of three times weekly supervised treadmill exercise. The control groups received lectures on health-related topics.Of 309 unique participants randomized (mean age, 67.9 years [standard deviation, 9.3 years]; 132 [42.7%] women; 185 [59.9%] black), 285 (92%) completed 6-month follow-up. Compared with control, those randomized to SET improved 6-minute walk distance by 35.6 meters (95% confidence interval, 21.4-49.8; P .001). In the 95 (62.1%) participants who attended at least 70% of SET sessions, change in 6-minute walk distance varied from -149.4 to +356.0 meters. Thirty-four (35.8%) had no 6-minute walk distance improvement. Among all participants, age, sex, race, body mass index, prior lower extremity revascularization, and other clinical characteristics did not affect the degree of improvement in 6-minute walk distance after SET relative to the control group. Participants with 6-minute walk distance less than the median of 334 meters at baseline had greater percentage improvement in 6-minute walk distance compared with those with baseline 6-minute walk distance above the median (+20.5% vs +5.3%; P for interaction = .0107).Among people with PAD, substantial variability exists in walking improvement after SET. Shorter 6-minute walk distance at baseline was associated with greater improvement after SET, but other clinical characteristics, including age, sex, prior lower extremity revascularization, and disease severity, did not affect responsiveness to exercise therapy.
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- 2019
25. Emerging Research Trends and Development of Alcoholic Liver Disease Based on Bibliometrics and Visualizaed Analysis
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Xinyue Hao, Dongxue Zhang, and Zhihui Huang
- Subjects
0301 basic medicine ,Alcoholic liver disease ,Research areas ,Bibliometrics ,medicine.disease ,Data science ,03 medical and health sciences ,Liver disease ,030104 developmental biology ,0302 clinical medicine ,Geography ,medicine ,030211 gastroenterology & hepatology ,Cluster analysis ,Citation ,Visual methods - Abstract
We conduct a scientometric study on the literature of the liver disease caused by alcohol from 2009 to 2019. Four related data sets of publications relevant to the liver disease caused by alcohol are constructed through four different topic searches and citation expansion to ensure adequate coverage of the field. Based on a combined data set of 5,257 articles published between 2009 and the first five months of 2019, networks of co-cited references repre-senting the literature of the liver disease caused by alcohol are constructed and visualized. Structure and temporal dynamics are identified in terms of the most active topical areas and cited references. We also discover new developments which are identified in terms of newly emerged clusters and research areas. Through the literature coupling analysis and clustering analysis, we further explore the major and young research clusters in the field. With CiteSpace, through a series of visual methods for information measurement, we will explore the emerging trends and developments in the field.
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- 2019
26. Study on Classification Model of Traditional Chinese Medicine Syndrome Types of Stroke Patients in Convalescent Stage Based on Support Vector Machine
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Dongxue Zhang, Zhihui Huang, and Gan Zhichao
- Subjects
medicine.medical_specialty ,Stroke patient ,business.industry ,medicine.medical_treatment ,Traditional Chinese medicine ,Blood stasis ,medicine.disease ,Clinical decision support system ,Support vector machine ,Medicine ,Stage (cooking) ,business ,Intensive care medicine ,Stroke recovery ,Stroke - Abstract
Objective: The purpose of this study is to construct a classification diagnosis model for different syndrome types in stroke recovery period, to provide clinical decision support for syndrome diagnosis of stroke recovery period, and to further improve clinical diagnosis efficiency and diagnostic accuracy. Method: We collected a lot of representative medical samples from medical institutions and divided them into training dataset, validating dataset and testing dataset in a 7:2:1 ratio. According to the standards of the National Administration of Traditional Chinese Medicine, we use the clinical risk characterization of common Traditional Chinese Medicine in the stroke recovery period as the input variable, and the Traditional Chinese Medicine syndrome type as the output variable. Further, we construct three diagnostic models based on Support Vector Machine for the three types of syndromes: Qi deficiency and blood stasis syndrome, phlegmstasis in channels, and wind formation from yin deficiency syndrome. To evaluate our solution, we propose to use the TS score as a measure of our models. Results: We achieved a high classification accuracy rate of stroke syndrome: 99.54% for qi deficiency and blood stasis syndrome, 92.06% for phlegm-stasis in channels, and 85.24% for wind formation from yin deficiency syndrome. Conclusion:This diagnostic model of Support Vector Machine has a high accuracy rate. Therefore, our solution has great potential in helping clinical decision making for stroke syndrome.
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- 2019
27. Associations of Weight Change With Changes in Calf Muscle Characteristics and Functional Decline in Peripheral Artery Disease
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Lu Tian, Tamar S. Polonsky, Robert L. Sufit, Dongxue Zhang, Mary M. McDermott, Luigi Ferrucci, Michael H. Criqui, Melina R. Kibbe, Christiaan Leeuwenburgh, Lydia A. Bazzano, and Jack M. Guralnik
- Subjects
Male ,obesity ,Aging ,Cardiorespiratory Medicine and Haematology ,030204 cardiovascular system & hematology ,Weight Gain ,law.invention ,0302 clinical medicine ,Randomized controlled trial ,physical exercise ,law ,Weight loss ,80 and over ,030212 general & internal medicine ,10. No inequality ,Tomography ,2. Zero hunger ,Confounding ,Skeletal ,Organ Size ,Physical Functional Performance ,X-Ray Computed ,Cardiology ,Muscle ,Female ,medicine.symptom ,Cardiology and Cardiovascular Medicine ,medicine.medical_specialty ,Clinical Trials and Supportive Activities ,Walk Test ,Physical exercise ,peripheral artery disease ,Peripheral Arterial Disease ,03 medical and health sciences ,Clinical Research ,Internal medicine ,Weight Loss ,medicine ,Humans ,Ankle Brachial Index ,Muscle Strength ,observational studies ,Aged ,Nutrition ,Leg ,business.industry ,Prevention ,Weight change ,Overweight ,medicine.disease ,Obesity ,business ,Weight gain ,Body mass index - Abstract
Background Among people with lower extremity peripheral artery disease, obesity is associated with faster functional decline than normal weight. The association of weight loss with functional decline in peripheral artery disease is unknown. Methods and Results Adults with an ankle‐brachial index 2 . Over 3.23±1.37 years, muscle area declined more in adults with intentional weight loss versus stable or gain (pair‐wise comparisons, P P =0.003). Conclusions Despite a greater loss of calf muscle area, adults with peripheral artery disease who intentionally lost ≥5 pounds experienced less functional decline than those who gained weight. A randomized trial is needed to establish whether benefits of weight loss in peripheral artery disease outweigh potential adverse effects.
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- 2019
28. MALDI-TOF Characterization of Protein Expression Mutation During Morphological Changes of Bacteria Under the Impact of Antibiotics
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Liang Qiao, Bing Wang, Baohong Liu, Qin Qin, Weijia Zhang, Juan Xu, Jianwei Chen, Yang Yi, and Dongxue Zhang
- Subjects
Proteomics ,Microfluidics ,010402 general chemistry ,Mass spectrometry ,Tandem mass spectrometry ,medicine.disease_cause ,01 natural sciences ,Analytical Chemistry ,Bacterial Proteins ,Ribosomal protein ,Liquid chromatography–mass spectrometry ,Tandem Mass Spectrometry ,Lab-On-A-Chip Devices ,Gram-Negative Bacteria ,medicine ,Escherichia coli ,biology ,Chemistry ,Pseudomonas aeruginosa ,010401 analytical chemistry ,biology.organism_classification ,0104 chemical sciences ,Anti-Bacterial Agents ,Biochemistry ,Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization ,Mutation ,Bacteria ,Chromatography, Liquid - Abstract
Antimicrobial resistance (AMR) is one of the most serious problems affecting public health and safety. When treated by antibiotics, bacteria usually experience changes in morphology that can lead to the development of AMR. In this work, we propose a strategy to study mutation in protein expression during morphological changes of bacteria under the impact of antibiotics. The study is focused on small proteins that can be detected by matrix assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS), which is nowadays widely used in hospitals for bacterial identification. We used a gradient microfluidic chip to observe the morphological changes of various bacteria under the impact of antibiotics. Differential peaks related to the morphological changes were first figured out by MALDI-TOF MS, then identified by considering the molecular weight of both candidate proteins and their tryptic digested peptides, and further validated by a liquid chromatography tandem mass spectrometry (LC-MS/MS) based label-free quantitative proteomic method. Specifically, carbapenem-resistant Klebsiella pneumoniae (CR-KP), super extended spectrum β-lactamases Escherichia coli, Vibrio parahemolyticus from South America prawns, and carbapenem-resistant Pseudomonas aeruginosa were used as model samples to illustrate the strategy. Eight proteins closely correlated with its morphological change were identified for CR-KP. Among the eight proteins, three, i.e., fimbrial subunit type 3, penicillin-binding protein activator LpoB, and 30S ribosomal protein S14, were further verified at the transcriptome level.
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- 2019
29. Genome-wide analysis of differentially expressed lncRNA in sporadic parathyroid tumors
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Tao Jiang, Bojun Wei, Lin Li, Zhenwen Chen, Xiaomeng Liu, X Y Du, Guo-Liang Qiao, Dongxue Zhang, and Xiaoai Yao
- Subjects
0301 basic medicine ,Adenoma ,Adult ,Male ,Microarray ,Endocrinology, Diabetes and Metabolism ,030209 endocrinology & metabolism ,Real-Time Polymerase Chain Reaction ,Diagnosis, Differential ,03 medical and health sciences ,0302 clinical medicine ,Medicine ,Humans ,RNA, Messenger ,RNA, Neoplasm ,Aged ,Hyperparathyroidism ,business.industry ,Parathyroid neoplasm ,Microarray analysis techniques ,Gene Expression Profiling ,Carcinoma ,Cancer ,Middle Aged ,medicine.disease ,Hyperparathyroidism, Primary ,Fold change ,Gene Expression Regulation, Neoplastic ,Parathyroid Neoplasms ,Parathyroid carcinoma ,Cancer research ,Female ,RNA, Long Noncoding ,030101 anatomy & morphology ,business ,Genome-Wide Association Study - Abstract
Diagnosis of parathyroid carcinoma on histological examination is challenging. Thousands of differentially expressed lncRNAs were identified on the microarray data between parathyroid cancer and adenoma samples. Four lncRNAs were significantly dysregulated in further validation. The “lncRNA score” calculated from these lncRNAs differentiated parathyroid carcinomas from adenomas. LncRNAs serve as biomarkers for parathyroid cancer diagnosis. Diagnosis of parathyroid carcinoma (PC) on histological examination is challenging. LncRNA profile study was conducted to find diagnostic biomarkers for PC. LncRNA arrays containing 91,007 lncRNAs as well as 29,857 mRNAs were used to assess parathyroid specimen (5 carcinomas and 6 adenomas). Bioinformatics analyses were also conducted to compare the microarray results between parathyroid carcinomas and adenomas (PAs). Differentially expressed lncRNAs of 11 PCs and 31 PAs were validated by real-time quantitative PCR. On the microarray data between PC and PA samples (fold change ≥ 2, P
- Published
- 2018
30. Effect of Low-Intensity vs High-Intensity Home-Based Walking Exercise on Walk Distance in Patients With Peripheral Artery Disease
- Author
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Christiaan Leeuwenburgh, Michael H. Criqui, Bonnie Spring, Robert L. Sufit, Luigi Ferrucci, Melina R. Kibbe, Al Rego, Lydia A. Bazzano, Todd M. Manini, Kathryn Domanchuk, Jack M. Guralnik, Diane Treat-Jacobson, Donald M. Lloyd-Jones, Brittany Smith, Mary M. McDermott, Tamar S. Polonsky, Daniel E. Forman, Lu Tian, Dongxue Zhang, Lihui Zhao, and W. Jack Rejeski
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Male ,medicine.medical_specialty ,Arterial disease ,Biopsy ,Psychological intervention ,Walk Test ,Walking ,Disease ,01 natural sciences ,law.invention ,Peripheral Arterial Disease ,03 medical and health sciences ,0302 clinical medicine ,Randomized controlled trial ,Ischemia ,law ,Humans ,Medicine ,In patient ,030212 general & internal medicine ,0101 mathematics ,Muscle, Skeletal ,Aged ,Original Investigation ,business.industry ,Walk distance ,010102 general mathematics ,General Medicine ,Exercise Therapy ,Intensity (physics) ,Lower Extremity ,Exercise intensity ,Physical therapy ,Female ,business - Abstract
IMPORTANCE: Supervised high-intensity walking exercise that induces ischemic leg symptoms is the first-line therapy for people with lower-extremity peripheral artery disease (PAD), but adherence is poor. OBJECTIVE: To determine whether low-intensity home-based walking exercise at a comfortable pace significantly improves walking ability in people with PAD vs high-intensity home-based walking exercise that induces ischemic leg symptoms and vs a nonexercise control. DESIGN, SETTING, AND PARTICIPANTS: Multicenter randomized clinical trial conducted at 4 US centers and including 305 participants. Enrollment occurred between September 25, 2015, and December 11, 2019; final follow-up was October 7, 2020. INTERVENTIONS: Participants with PAD were randomized to low-intensity walking exercise (n = 116), high-intensity walking exercise (n = 124), or nonexercise control (n = 65) for 12 months. Both exercise groups were asked to walk for exercise in an unsupervised setting 5 times per week for up to 50 minutes per session wearing an accelerometer to document exercise intensity and time. The low-intensity group walked at a pace without ischemic leg symptoms. The high-intensity group walked at a pace eliciting moderate to severe ischemic leg symptoms. Accelerometer data were viewable to a coach who telephoned participants weekly for 12 months and helped them adhere to their prescribed exercise. The nonexercise control group received weekly educational telephone calls for 12 months. MAIN OUTCOMES AND MEASURES: The primary outcome was mean change in 6-minute walk distance at 12 months (minimum clinically important difference, 8-20 m). RESULTS: Among 305 randomized patients (mean age, 69.3 [SD, 9.5] years, 146 [47.9%] women, 181 [59.3%] Black patients), 250 (82%) completed 12-month follow-up. The 6-minute walk distance changed from 332.1 m at baseline to 327.5 m at 12-month follow-up in the low-intensity exercise group (within-group mean change, −6.4 m [95% CI, −21.5 to 8.8 m]; P = .34) and from 338.1 m to 371.2 m in the high-intensity exercise group (within-group mean change, 34.5 m [95% CI, 20.1 to 48.9 m]; P
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- 2021
31. Study on the design of Traditional Chinese Medicine apoplexy screening and early warning information system
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Gan Zhichao, Dongxue Zhang, and Zhihui Huang
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Warning system ,business.industry ,020208 electrical & electronic engineering ,High mortality ,02 engineering and technology ,Traditional Chinese medicine ,medicine.disease ,020202 computer hardware & architecture ,High morbidity ,Intervention (counseling) ,0202 electrical engineering, electronic engineering, information engineering ,Information system ,Medicine ,Medical emergency ,business ,Interface design ,Computer technology - Abstract
Object the purpose of this study is to use modern computer technology to design a system for screening and early warning of apoplexy in the Traditional Chinese Medicine and to establish relevant data to improve the information level of the Traditional Chinese Medicine diagnosis and treatment, and to provide a new way for prevention and treatment of apoplexy in the Traditional Chinese Medicine. Method the Chinese Medicine apoplexy screening and early warning information system takes ZK as the development framework, uses MySQL as the background database, and uses ZK user-interfaces Markup language as the interface design language. Results to realize the design and development of the Traditional Chinese Medicine apoplexy screening and early warning information system, basically meet the needs of system use. Conclusion Apoplexy in the Traditional Chinese Medicine has five characteristics of high morbidity, high mortality, high disability rate, high recurrence rate and high economic burden, which seriously threatens people’s health. Early screening and early warning can be used in the timely intervention before the onset of apoplexy to reduce the incidence of apoplexy, and thus reduce the economic burden of disease.
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- 2018
32. Detection of Pathogenic Microorganisms by Microfluidics Based Analytical Methods
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Liang Qiao, Baohong Liu, Dongxue Zhang, and Hongyan Bi
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Bacteria ,Chemistry ,Microorganism ,010401 analytical chemistry ,Microfluidics ,Pathogenic bacteria ,02 engineering and technology ,Biosensing Techniques ,Microfluidic Analytical Techniques ,021001 nanoscience & nanotechnology ,medicine.disease_cause ,01 natural sciences ,0104 chemical sciences ,Analytical Chemistry ,Clinical diagnosis ,Viruses ,medicine ,Animals ,Humans ,Biochemical engineering ,0210 nano-technology - Abstract
Microfluidics based biochemical analysis shows distinctive advantages for fast detection of pathogenic microorganisms. This Feature summarizes the progress in the past decade on microfluidic methods for purification and detection of pathogenic bacteria and viruses as well as their applications in food safety control, environmental monitoring, and clinical diagnosis.
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- 2018
33. A Preliminary Study on Discriminant Analysis of Syndrome Types in the Recovery Period of Stroke in Traditional Chinese Medicine
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Gan Zhichao, Dongxue Zhang, Zhihui Huang, and Lanrong Chen
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Adult ,Male ,medicine.medical_specialty ,Adolescent ,Article Subject ,Youden's J statistic ,MEDLINE ,lcsh:Medicine ,030204 cardiovascular system & hematology ,Logistic regression ,Likelihood ratios in diagnostic testing ,General Biochemistry, Genetics and Molecular Biology ,03 medical and health sciences ,0302 clinical medicine ,Internal medicine ,medicine ,Humans ,Stroke ,Aged ,General Immunology and Microbiology ,business.industry ,lcsh:R ,Syndrome ,General Medicine ,Middle Aged ,Linear discriminant analysis ,medicine.disease ,Clinical trial ,Clinical research ,Female ,business ,030217 neurology & neurosurgery ,Research Article - Abstract
Objective. The purpose of this study is to understand the distribution of syndrome types, the data of four diagnostic information variables, and the correlative degree and diagnostic value of four diagnosis indexes and syndromes in patients with the recovery period of ischemic stroke through clinical case data. Methods. This study developed a unified clinical case collection table, following the clinical research design, measurement, and evaluation methods, using Chi-Square test, logistic regression analysis, and diagnostic test evaluation methods for data screening, analysis, and testing. Results. According to the comprehensive comparison, analysis, and evaluation, the study concluded that the specificity, sensitivity, positive likelihood ratio, positive predictive value, negative predictive value, accuracy, and Youden index of “thick fur, slippery pulse” was the highest. Conclusion. “thick fur, slippery pulse” is the best combination to diagnose the phlegm-stasis in channels during the recovery period of ischemic stroke.
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- 2018
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34. Plasma lncRNA GAS8-AS1 as a Potential Biomarker of Papillary Thyroid Carcinoma in Chinese Patients
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Guo-Liang Qiao, Bojun Wei, Zhenwen Chen, Xin Liu, Tao Jiang, and Dongxue Zhang
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0301 basic medicine ,Pathology ,medicine.medical_specialty ,Goiter ,endocrine system diseases ,Article Subject ,Endocrinology, Diabetes and Metabolism ,Lymph node metastasis ,lcsh:Diseases of the endocrine glands. Clinical endocrinology ,Papillary thyroid cancer ,Thyroid carcinoma ,03 medical and health sciences ,0302 clinical medicine ,Endocrinology ,medicine ,In patient ,lcsh:RC648-665 ,Receiver operating characteristic ,Endocrine and Autonomic Systems ,business.industry ,medicine.disease ,030104 developmental biology ,030220 oncology & carcinogenesis ,Potential biomarkers ,Nodular goiters ,business ,Research Article - Abstract
Background. Long noncoding RNAs (lncRNAs) were recently shown to have potential in the diagnosis and prognosis for numerous cancers. lncRNA GAS8-AS1 is decreased in papillary thyroid cancer (PTC) tissue, but its plasma expression and clinical value in patients with PTC remain unknown. Materials and Methods. We investigated the expression profile of plasma GAS8-AS1 in 97 patients with PTC and 39 patients with nodular goiter by quantitative real-time polymerase chain reaction. Results. GAS8-AS1 expression in plasma was downregulated in patients with PTC in comparison with those in nodular goiters (P<0.001). A low level of plasma GAS8-AS1 expression was correlated with lymph node metastasis (LNM) (P<0.001). Multivariate analysis showed that a reduced GAS8-AS1 level in plasma was associated with LNM (P<0.05). The area under the receiver operating characteristic curve for GAS8-AS1 was 0.746 in LNM prediction (P<0.001). Conclusion. The present study indicates that circulating GAS8-AS1 is a potential biomarker for PTC diagnosis and LNM prediction.
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- 2017
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35. Neuroprotective effects of erythropoietin against sevoflurane-induced neuronal apoptosis in primary rat cortical neurons involving the EPOR-Erk1/2-Nrf2/Bach1 signal pathway
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Xiao-Chun Zhao, Dongxue Zhang, Wenbo Sun, and Li-Min Zhang
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0301 basic medicine ,MAPK/ERK pathway ,Methyl Ethers ,Cell Survival ,MAP Kinase Signaling System ,NF-E2-Related Factor 2 ,Apoptosis ,Biology ,Pharmacology ,medicine.disease_cause ,Neuroprotection ,Rats, Sprague-Dawley ,03 medical and health sciences ,chemistry.chemical_compound ,Sevoflurane ,0302 clinical medicine ,medicine ,Receptors, Erythropoietin ,Animals ,Propidium iodide ,Erythropoietin ,Cells, Cultured ,Cerebral Cortex ,Neurons ,Dose-Response Relationship, Drug ,Neurotoxicity ,General Medicine ,medicine.disease ,Molecular biology ,Erythropoietin receptor ,Rats ,030104 developmental biology ,Basic-Leucine Zipper Transcription Factors ,Neuroprotective Agents ,chemistry ,Animals, Newborn ,030217 neurology & neurosurgery ,Oxidative stress ,medicine.drug - Abstract
Erythropoietin (EPO)-induced activation of the EPO receptor (EPOR) against sevoflurane-induced neuronal apoptosis is an effective intervention, but the underlying mechanism is poorly understood. Previous studies have shown that alteration of the nuclear factor erythroid 2-related factor (Nrf2)/BTB-to-CNC homology 1 (Bach1) ratio by extracellular signal-related kinases (Erk) 1/2 ameliorates the oxidative stress which occurs in human macrophages. In this study, we determined whether or not EPO attenuates sevoflurane-induced neuronal apoptosis via the EPOR-Erk1/2-Nrf2/Bach1 signal pathway.Primary rat cortical neurons were exposed to 4% sevoflurane for 6h. Neuronal viability, injury, apoptosis, and oxidative stress were assessed using 3-(4, 5-dimethylthiazol-2-yl)-2, 5-diphenyltetrazolium bromide (MTT), lactate dehydrogenase (LDH), propidium iodide uptake (PI), malondialdehyde (MDA), and superoxide dismutase (SOD) assays. A real-time PCR assay was used to measure EPOR expression. Western blotting was used to assess Nrf2, Bach1, and heme oxygenase-1 (HO-1) expression.Sevoflurane exposure increased cell apoptosis, injury, and MDA (P0.05), but decreased cell viability and the Nrf2:Bach1 ratio (P0.05), and down-regulated superoxide dismutase (SOD; P0.05), while EPO partially rescued the neurotoxicity induced by sevoflurane (P0.05). Inhibition of EPOR via EPO-specific monoclonal antibody or Erk1/2 phosphorylation via PD98059 reversed the protective effect of EPO (P0.05).The neuroprotective effects of EPO against sevoflurane-induced neuronal apoptosis in primary rat cortical neurons involves the EPOR-Erk1/2-Nrf2/Bach1 signal pathway.
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- 2016
36. Effect of a Home-Based Exercise Intervention of Wearable Technology and Telephone Coaching on Walking Performance in Peripheral Artery Disease
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Tamar S. Polonsky, Jeffrey S. Berger, W. Jack Rejeski, Heather L. Gornik, Jack M. Guralnik, Bonnie Spring, Diane Treat-Jacobson, Donald M. Lloyd-Jones, Luigi Ferrucci, Walter J. McCarthy, Dongxue Zhang, Michael H. Criqui, Melina R. Kibbe, Mark A. Creager, Christopher L. Skelly, Mary M. McDermott, Lingyu Li, Peter K. Henke, Debra Kohlman-Trighoff, Lihui Zhao, Lu Tian, Michael S. Conte, and Elizabeth A. Hahn
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Telemedicine ,medicine.medical_specialty ,business.industry ,Minimal clinically important difference ,Psychological intervention ,General Medicine ,030204 cardiovascular system & hematology ,Coaching ,law.invention ,03 medical and health sciences ,0302 clinical medicine ,Randomized controlled trial ,Telephone counseling ,law ,Intervention (counseling) ,Physical therapy ,Medicine ,030212 general & internal medicine ,business ,Wearable technology - Abstract
Importance Clinical practice guidelines support home-based exercise for patients with peripheral artery disease (PAD), but no randomized trials have tested whether an exercise intervention without periodic medical center visits improves walking performance. Objective To determine whether a home-based exercise intervention consisting of a wearable activity monitor and telephone coaching improves walking ability over 9 months in patients with PAD. Design, Setting, and Participants Randomized clinical trial conducted at 3 US medical centers. Patients with PAD were randomized between June 18, 2015, and April 4, 2017, to home-based exercise vs usual care for 9 months. Final follow-up was on December 5, 2017. Interventions The exercise intervention group (n = 99) received 4 weekly medical center visits during the first month followed by 8 months of a wearable activity monitor and telephone coaching. The usual care group (n = 101) received no onsite sessions, active exercise, or coaching intervention. Main Outcomes and Measures The primary outcome was change in 6-minute walk distance at 9-month follow-up (minimal clinically important difference [MCID], 20 m). Secondary outcomes included 9-month change in subcomponents of the Walking Impairment Questionnaire (WIQ) (0-100 score; 100, best), SF-36 physical functioning score, Patient-Reported Outcomes Measurement Information System (PROMIS) mobility questionnaire (higher = better; MCID, 2 points), PROMIS satisfaction with social roles questionnaire, PROMIS pain interference questionnaire (lower = better; MCID range, 3.5-4.5 points), and objectively measured physical activity. Results Among 200 randomized participants (mean [SD] age, 70.2 [10.4] years; 105 [52.5%] women), 182 (91%) completed 9-month follow-up. The mean change from baseline to 9-month follow-up in the 6-minute walk distance was 5.5 m in the intervention group vs 14.4 m in the usual care group (difference, −8.9 m; 95% CI, −26.0 to 8.2 m; P = .31). The exercise intervention worsened the PROMIS pain interference score, mean change from baseline to 9 months was 0.7 in the intervention group vs −2.8 in the usual care group (difference, 3.5; 95% CI, 1.3 to 5.8; P = .002). There were no significant between-group differences in the WIQ score, the SF-36 physical functioning score, or the PROMIS mobility or satisfaction with social roles scores. Conclusions and Relevance Among patients with PAD, a home-based exercise intervention consisting of a wearable activity monitor and telephone coaching, compared with usual care, did not improve walking performance at 9-month follow-up. These results do not support home-based exercise interventions of wearable devices and telephone counseling without periodic onsite visits to improve walking performance in patients with PAD. Trial Registration clinicaltrials.gov Identifier:NCT02462824
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- 2018
37. RETRACTED ARTICLE: Erythropoietin Rescues Primary Rat Cortical Neurons by Altering the Nrf2:Bach1 Ratio: Roles of Extracellular Signal-Regulated Kinase 1/2
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Dongxue Zhang, Limin Zhang, Wenbo Sun, and Xiao-Chun Zhao
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0301 basic medicine ,MAPK/ERK pathway ,Programmed cell death ,Kinase ,Neurotoxicity ,General Medicine ,Biology ,Pharmacology ,medicine.disease ,Biochemistry ,Sevoflurane ,Superoxide dismutase ,03 medical and health sciences ,Cellular and Molecular Neuroscience ,030104 developmental biology ,0302 clinical medicine ,Erythropoietin ,biology.protein ,medicine ,Extracellular ,030217 neurology & neurosurgery ,medicine.drug - Abstract
While inhalation anesthetics are indispensable, and generally considered safe and effective, there is growing concern about the selective neurotoxicity of these agents, especially sevoflurane. Erythropoetin (EPO)-induced protection against sevoflurane-induced neuronal death is an effective intervention, but the underlying mechanism is poorly understood. Extracellular signal-related kinases (Erk) 1/2 plays a pivotal role in cell growth and proliferation. Alteration of the nuclear factor erythroid 2-related factor (Nrf2)/BTB-to-CNC homology 1 (Bach1) ratio by Erk1/2 ameliorates the oxidative stress which occurs in human macrophages. Primary cortical neuron cultures exposed to sevoflurane were assessed for Nrf2, Bach1, total Erk1/2, and phosphorylated Erk1/2 with the following: 3-(4, 5-dimethylthiazol-2-yl)-2, 5-diphenyltetrazolium bromide; propidium iodide uptake; lactate dehydrogenase; malondialdehyde (MDA); superoxide dismutase (SOD); and Western blot. Sevoflurane exposure increased cell death, injury, and MDA (n = 9, P < 0.05), but decreased cell viability and the Nrf2:Bach1 ratio (n = 9, P < 0.05) and down-regulated SOD (n = 9, P < 0.05), while EPO partially rescued the neurotoxicity induced by sevoflurane (n = 9, P < 0.05). Inhibition of Erk1/2 phosphorylation via PD98059 reversed the protective effect of EPO (n = 9, P < 0.05). Thus, protection of EPO markedly attenuated death of neurons exposed to sevoflurane by altering the Nrf2:Bach1 ratio mediated by phosphorylation and activation of Erk1/2.
- Published
- 2017
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