19 results on '"Hang Xiang"'
Search Results
2. Resveratrol Reduced Liver Damage After Liver Resection in a Rat Model by Upregulating Sirtuin 1 (SIRT1) and Inhibiting the Acetylation of High Mobility Group Box 1 (HMGB1)
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Jie Zhou, Hang Xiang, Sheng Yu, Xingliang Zhou, Shaoping Wang, and Zhonglin Cui
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Male ,medicine.medical_specialty ,Bilirubin ,Apoptosis ,030204 cardiovascular system & hematology ,Resveratrol ,Rats, Sprague-Dawley ,03 medical and health sciences ,chemistry.chemical_compound ,0302 clinical medicine ,Sirtuin 1 ,Internal medicine ,medicine ,Animals ,Hepatectomy ,Humans ,HMGB1 Protein ,Liver injury ,medicine.diagnostic_test ,biology ,business.industry ,Liver Diseases ,Animal Study ,Liver cell ,Albumin ,Acetylation ,Hep G2 Cells ,General Medicine ,Liver Failure, Acute ,medicine.disease ,Rats ,Up-Regulation ,Disease Models, Animal ,Endocrinology ,Liver ,chemistry ,030220 oncology & carcinogenesis ,Hepatocytes ,biology.protein ,Clinical Medicine ,Liver cancer ,Liver function tests ,business - Abstract
BACKGROUND Liver failure after resection for liver cancer is associated with increased patient mortality. This study aimed to investigate the mechanism of the protective effects of resveratrol, a natural plant-derived compound, on liver injury in a rat model of partial hepatectomy. MATERIAL AND METHODS Adult male Sprague-Dawley (SD) rats (n=60) were divided into the sham group (n=20), the liver resection group (n=20), and the liver resection plus resveratrol-treated group (n=20). Liver resection removed 2/3 of the liver resection; resveratrol was given at a dose of 30 mg/kg/day from one week before surgery until death. Liver injury was assessed by serum liver function tests, including alanine aminotransferase (ALT), aspartate aminotransferase (AST), γ-glutamyl-transferase (γ-GT) and total bilirubin, histological examination of the rat liver, and liver cell apoptosis using the TUNEL assay. High mobility group box 1 (HMGB1) expression was measured by enzyme-linked immunoassay (ELISA). Sirtuin 1 (SIRT1) and acetylated HMGB1 (Ac-HMGB1) expression were detected by Western blot. Normal human liver cells and HepG2 liver cancer cells were incubated with acetylated HMGB1, and albumin production and ammonia elimination assays were performed. RESULTS Resveratrol reduced postoperative liver injury as shown by reduced ALT, AST, γ-GT, and total bilirubin levels, maintained liver structure, and reduced cell apoptosis. Resveratrol treatment reduced the expression and acetylation levels of HMGB1 via the SIRT1 signaling pathway. Resveratrol reversed Ac-HMGB1 induced dysfunction in liver cells cultured in vitro. CONCLUSIONS Resveratrol reduced liver damage after liver resection in a rat model by upregulating SIRT1 and reducing the acetylation of HMGB1.
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- 2019
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3. The distinct clinicopathological and prognostic implications of PIK3CA mutations in breast cancer patients from Central China
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Jing Xie, Wenchu Lin, Haibo Wu, Xiaoli Liu, Jun Du, Liangliang Huang, Hang Xiang, Heng Li, Huogang Wang, Hong Li, and Wei Wang
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0301 basic medicine ,Oncology ,medicine.medical_specialty ,medicine.drug_class ,Central china ,medicine.disease_cause ,DNA sequencing ,03 medical and health sciences ,Exon ,symbols.namesake ,0302 clinical medicine ,Breast cancer ,Internal medicine ,medicine ,neoplasms ,Pathological ,Sanger sequencing ,Mutation ,business.industry ,medicine.disease ,030104 developmental biology ,Estrogen ,030220 oncology & carcinogenesis ,symbols ,business - Abstract
Purpose The mutation status and prognostic value of PIK3CA in breast cancer were widely investigated, which showed significant difference among the patients from vast areas around the world. In this study, the frequency, distribution, bias, and burden of PIK3CA mutations and their relationships with clinicopathologic variables and prognostic significances were investigated in the breast cancer patients from Central China. Materials and methods Somatic mutations in exon 9 and exon 20 of PIK3CA gene were analyzed using Sanger sequencing combining with targeted next generation sequencing in 494 breast cancer patients from Central China. The correlations between PIK3CA mutations and clinicopathological characteristics and the prognostic values of multiple PIK3CA mutation statuses were evaluated. Results PIK3CA mutations were found in 38% of the patients and associated with estrogen receptor-positive, progesterone receptor-positive, low Ki67 labeling index, and luminal/human epidermal growth factor receptor 2-enriched subtypes. Meanwhile, the prognosis of the total patients and the patients in old diagnostic age, progesterone receptor-negative, low Ki67 labeling index, and luminal/human epidermal growth factor receptor 2-enriched subgroups was significantly related to PIK3CA mutations. Most interestingly, the distribution, bias, and burden of PIK3CA mutations were correlated with different clinical, pathological, and molecular features as well as distinct prognostic implications in multiple breast cancer subgroups. Conclusion The frequency, distribution, bias, and burden of PIK3CA mutations were associated with various clinical, pathological, and molecular characteristics in the breast cancer patients from Central China. These different mutation statuses can be used as potential indicators of prognosis in multiple breast cancer subgroups.
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- 2019
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4. A Proteogenomic Atlas of Clear Cell Renal Cell Carcinoma in a Chinese Population
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Jiacheng Lv, Chen Ding, Menghong Sun, Lingling Li, Hualei Gan, Subei Tan, Lingli Zhu, Yang Liu, Xuan Zhang, Hailiang Zhang, Hang Xiang, Ye Dingwei, Xu Wenhao, Jinwen Feng, Yuan-Yuan Qu, Fujiang Xu, Guohai Shi, Hongkai Wang, Xiuping Chen, Jian-Yuan Zhao, Dalong Cao, Lin Bai, Guojian Yang, and Xiaohui Wu
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Clear cell renal cell carcinoma ,Pathology ,medicine.medical_specialty ,Chinese population ,Atlas (topology) ,medicine ,Biology ,medicine.disease - Abstract
Renal cell carcinoma (RCC) is among the top 10 malignant carcinomas1. Clear cell (cc)RCC, accounting for ~ 75% of RCC cases, is an aggressive histological RCC subtype. In the last decade, large-scale multiomics studies have profoundly enhanced our understanding of this disease2,3. However, despite the differences of genomic alterations between Western and Eastern ccRCC4,5, these studies mostly focused on patients in Western populations. Here we conducted a comprehensive proteogenomic analysis of 232 tumor and adjacent non-tumor tissue pairs from Chinese ccRCC patients. Genomic analysis revealed unique genetic features of Chinese ccRCC and distinct mutation patterns associated with copy number alterations. Based on proteomic profiles, ccRCC showed extensive metabolic dysregulation, especially in one-carbon metabolism. We classified ccRCC into three subtypes (GP1–3), among which the most aggressive GP1 exhibited dominant immune response, metastasis, and metabolic imbalance, linking the proteomic features, genomic alterations, and clinical outcomes of ccRCC. Nicotinamide N-methyltransferase (NNMT) and NNMT mediated protein homocysteinylation were identified as a poor prognosis indicator and a drug target for GP1, respectively. We demonstrated that NNMT induces DNA-dependent protein kinase catalytic subunit (DNA-PKcs) homocysteinylation, increases DNA repair, and promotes tumor growth in ccRCC. Treatment of N-acetyl-cysteine (NAC), an inhibitor of homocysteinylation, markedly reduced the NNMT overexpression induced radioresistance of tumor cells. This study provided valuable insights into the biological underpinnings and prognosis assessment of ccRCC, revealing a targetable metabolic vulnerability.
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- 2021
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5. Co-Transplantation of Hypoxia Pretreated Human Adipose Derived Mesenchymal Stem Cells and Cord Blood Mononuclear Cells to Treat Rats With Acute Myocardial Infarction
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Yang Li, Hang Xiang, Tianyuan Xiang, Ann Xu, Matthew John Horwedel, Qiang Zeng, and Hongxia Zhang
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Co transplantation ,Pathology ,medicine.medical_specialty ,endocrine system ,business.industry ,animal diseases ,Mesenchymal stem cell ,Adipose tissue ,hemic and immune systems ,Hypoxia (medical) ,medicine.disease ,Peripheral blood mononuclear cell ,eye diseases ,Cord blood ,Medicine ,Myocardial infarction ,medicine.symptom ,business ,tissues - Abstract
BackgroundHuman adipose derived mesenchymal stem cells (ASCs) are ideal candidates for the treatment of acute myocardial infarction (AMI), due to their favorable availability and regenerative potential. However, in vivo studies showed that ASCs are not resilient at the infarcted area, for a shortage of blood and oxygen supply. Hypoxic pretreatment was proven to be an effective way to enhance cell survival in ischemic atmosphere. Moreover, co-transplantation of stem cells was another promising strategy to improve cardiac function after transplantation. So, we hypothesized that hypoxic pretreated ASCs combined with proangiogenic cord blood mononuclear cells (CBMNCs) would promote treatment efficacy after co-transplantation.MethodsASCs extracted from male volunteer were preconditioned in hypoxic condition (HP-ASC) for 24h, and total RNA were extracted after that. Gene expressions were compared between HP-ASC and ASC. Then, we transplanted stem cells to female Wistar rats which divided into different groups: (1) HP-ASCs group (n=10, 1x106ASCs); (2) HP-ASCs + CBMNCs group (n=10, 0.5×106 ASCs+0.5×106 CBMNCs); (3) CBMNCs group (n=10, 1×106 ASCs); (4) Control group (n=10, 40μL PBS); (5) Sham group (n=10). Echocardiogram was performed before (0d) and after (30d) after cell transplantation. Hearts were harvested at 30d to analyze the infarct size, myocardium apoptosis, stem cells viability and angiogenesis. ResultsIn vitro study showed that HP-ASCs had a wide range of paracrine function, with the incretion growth factors and their receptors, which would support the cell survivals. In addition, HP-ASCs also gained potentials in hypoxic adaptation (increased expression of HO-1 and SDF-1), as well as homing and immigrating abilities (CXCR4, ICAM-1 and ICAM-2). In vivo studies showed that, 30 days after transplantation in AMI rats, the HP-ASCs group had a better improvement in cardiac function; reduction of the infarct size; and decrease of ASCs death than the other groups (HP-ASCs > HP-ASCs + CBMNCs ≧ CBMNCs > PBS) (p CBMNCs > HP-ASCs > PBS) (p ConclusionsHP-ASCs alone had a greater potential in improving cardiac function in AMI rats. However, the combination of HP-ASCs and CBMNCs had a better result in angiogenesis.
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- 2020
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6. The First Report of the Prevalence of COVID-19 in Chronic Myelogenous Leukemia Patients in the Core Epidemic Area of China: A Multicentre, Cross-Sectional Survey
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Shi-Ming Chen, Jie Du, Ya-Ping Wang, Jingming Guo, Qing Li, Zhuangzhi Yang, Li Meng, Yong You, Dao-Zi Jiang, Guolin Yuan, Zhiping Huang, Ying Bao, Youshan Zhang, You-Fang Zhao, Zhe Zhao, Zhichao Chen, Qi-Huan Liu, Hong-Bo Ren, Hong Han, Yun-Hui Wei, Hongxiang Wang, Da-Lin Zhang, Chucheng Wan, Xue-Lan Zuo, Weiming Li, Qing Wu, Hui Cheng, Dan-Yu Wang, Xin-Hua Zhang, Bin Chen, Hang Xiang, Jun Huang, Xiaojian Zhu, and Ren-Ying Ge
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medicine.medical_specialty ,Pediatrics ,Coronavirus disease 2019 (COVID-19) ,Cross-sectional study ,business.industry ,Outbreak ,Pharmacy ,Disease ,medicine.disease ,hemic and lymphatic diseases ,Epidemiology ,medicine ,Observational study ,business ,Chronic myelogenous leukemia - Abstract
Background: Since late December 2019, the outbreak of the novel coronavirus disease, COVID-19, that began in Wuhan, has become endemic in China and more than 100 countries and regions in the world. There is no report about the prevalence of COVID-19 in CML patients untill now. We aimed to describe the clinical course, outcomes of CML patients with COVID-19 and prevalence of COVID-19 in CML patients. Methods: In this multi-center survey, cross-sectional survey, observational study, the clinical data of CML patients with COVID-19 in each center were collected. Simultaneously, an online survey was conducted for information about the CML patients under the management at each center by asking the CML patients to complete a questionnaire,from February 15, 2020 to February 21, 2020. The questionnaire includes demographic data, place of residence, smoking status, CML diagnosis and treatment, comorbidities, combined medications, epidemiological history, symptoms (fever, cough, shortness of breath, etc) during the epidemic. Additional clinical data was collected on respondents suspected or confirmed to have COVID-19. We described and analyzed the prevalence of COVID-19 in CML patients, and focus on the clinical characteristics and outcomes of COVID-19 patients. Data were compared between the CML patients with optimal response and those with non-optimal response. The primary outcome was prevalence of COVID-19 in CML patients, as of Feb 21, 2020. Secondary outcomes included the history of epidemiology of CML patients, the clinical characteristics and outcomes of CML patients with COVID-19. Findings: Of 392 respondents, 223(56.9%) were males, and 240(61.2%) were 50 years or younger. Only 10 patients took drugs irregularly due to the influence of the epidemic because of traffic control, pharmacies unable to operate normally, etc. In the history of epidemiology, there were 4 patients with definite contact with COVID-19, of which 3 were remote contact and 1 was close contact. 12 respondents had fever, cough or shortness of breath during the epidemic, 1 case (common type) was confirmed with COVID-19 and cured after treatment. 1 patient was clinically diagnosed and succumbed. 1 of 299 (0.3%) patients with an optimal response was diagnosed with COVID-19. Of the 50 patients who failed to respond to CML treatment or had a poor response, 1 patient (2%) had a clinical diagnosis of COVID-19. Interpretation: While the 392 CML respondents required regular referrals to hospitals, they did not have much contact with COVID-19 patients during the outbreak. Patients who failed to achieved an optimal response to CML therapy appear more likely to have a symptomatic infection with SARS-CoV-2. Older patients with comorbidities are at increased risk of death. Funding Statement: This work was supported by grants from the National Natural Science Foundation of China(NSFC)(81873440&81700142). Declaration of Interests: All participants have no competing interests. Ethics Approval Statement: The investigation was approved by the ethics committee of the Union hospital of the Tongji Medical College, which is part of the Huazhong University of Science and Technology.
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- 2020
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7. Autologous bone marrow stem cell transplantation for the treatment of ulcerative colitis complicated with herpes zoster: a case report
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Xin Ge, Fan Li, Wanjun Sun, Hang Xiang, Tianyuan Xiang, Wen-Huan Xu, Chao Yang, Haixu Chen, Zheng Wang, Qiang Zeng, Rong Zhang, Ya Qiu, and Xiao-Mei Zhang
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Adult ,Male ,0301 basic medicine ,medicine.medical_specialty ,Colorectal cancer ,Colonoscopy ,Herpes Zoster ,Transplantation, Autologous ,Inflammatory bowel disease ,03 medical and health sciences ,0302 clinical medicine ,Bone Marrow ,medicine ,Humans ,Intestinal Mucosa ,Bone Marrow Transplantation ,Clinical Trials as Topic ,medicine.diagnostic_test ,business.industry ,Remission Induction ,Rectum ,Bone Marrow Stem Cell ,General Medicine ,medicine.disease ,Ulcerative colitis ,Hematochezia ,Surgery ,Transplantation ,030104 developmental biology ,medicine.anatomical_structure ,030220 oncology & carcinogenesis ,Colitis, Ulcerative ,Bone marrow ,medicine.symptom ,business ,Stem Cell Transplantation - Abstract
Ulcerative colitis (UC) is a chronic inflammatory bowel disease with continuous or recurrent symptoms. A 42-year-old male patient with intermittent diarrhea accompanied by bloody mucopurulent stools was admitted to our hospital. The diagnosis of UC was confirmed by a combination of laboratory examination, colonoscopy, and histological assay. The patient developed herpes zoster in the hospital, which challenged traditional treatments. Therefore, we performed an autologous bone marrow cells to modulate the immune system with his permission. Autologous bone marrow mononuclear cells were collected and injected locally into the bowel mucosa, and subsequently injected systemically through a peripheral vein. After the patient underwent auto bone marrow mononuclear cells transplantations twice, the patient's symptoms were alleviated. Furthermore, he recovered from hematochezia, and his hypersensitive C reactive protein decreased. Colonoscopy results showed reduced lesions and decreased areas with bleeding and edema in the sigmoid colon and rectum. No recurrence occurred in the subsequent two years, but long-time monitoring is still necessary for the prophylaxis of colorectal cancer.
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- 2016
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8. Systemic risk factors correlated with hyperhomocysteinemia for specific MTHFR C677T genotypes and sex in the Chinese population
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Muyang Yan, Sheng Yu, Tianyuan Xiang, Yang Li, Hang Xiang, Matthew John Horwedel, and Qiang Zeng
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0301 basic medicine ,Hyperhomocysteinemia ,medicine.medical_specialty ,030109 nutrition & dietetics ,biology ,Homocysteine ,business.industry ,General Medicine ,Disease ,medicine.disease ,Gastroenterology ,03 medical and health sciences ,chemistry.chemical_compound ,0302 clinical medicine ,chemistry ,Methylenetetrahydrofolate reductase ,Internal medicine ,Genotype ,medicine ,biology.protein ,Risk factor ,business ,Genotyping ,Stroke ,030217 neurology & neurosurgery - Abstract
Background Methyltetrahydrofolate reductase (MTHFR) is a main regulatory enzyme in homocysteine (Hcy) metabolism. A common C677T mutation in the MTHFR gene results in decreased enzyme activity, which contributes to hyperhomocysteinemia (HHcy). Previous studies have shown that HHcy was correlated with various systemic diseases, such as cardiovascular disease, stroke, cancer, renal failure and so on. However, we hypothesized that HHcy in different genotype and sex groups may have different risk factors, which would lead to various pathologic states. Therefore, the aim of this study was to explore systemic information that are correlated with HHcy for specific MTHFR C677T genotypes and sex, which might be useful for predicting and preventing systemic diseases. Methods This cross-sectional study was performed through November 2017 to July 2019. A total of 4,534 adults aged 20-75 y were selected for this study. All the participants underwent a physical examination, blood tests and MTHFRC677T genotyping. Multivariable linear regression was performed to explore the risk factors for HHcy for each sex and genotype. Results The average of Hcy level is higher in the TT genotype than CC and CT genotypes (P=0.000). Multiple linear regression analysis identified the common protective factors (folate and Vit B12) and risk factor (Cr) for HHcy. Besides that, each group has its specific risk factors-female-CT (age, SBP, and Hb), female-TT (SBP and AST); male-CC (age, AST and Hb), male-CT (age and AST) and male-TT (SBP, AST, and Hb). Conclusions HHcy was associated with different risk factors for each specific sex and genotype. These risk factors might be useful for predicting and preventing systemic diseases.
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- 2020
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9. Predictive factors for prolonged remission after autologous hematopoietic stem cell transplantation in young patients with type 1 diabetes mellitus
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Zheng Wang, Jing Liu, Qiang Zeng, Lu Hao, Hang Xiang, Yuehan Su, Fei Wang, Fan Li, and Haixu Chen
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Adult ,Male ,Cancer Research ,medicine.medical_specialty ,Transplantation Conditioning ,Adolescent ,medicine.medical_treatment ,Immunology ,Hematopoietic stem cell transplantation ,Logistic regression ,Transplantation, Autologous ,Gastroenterology ,Young Adult ,Predictive Value of Tests ,Internal medicine ,medicine ,Humans ,Immunology and Allergy ,Prospective Studies ,Prospective cohort study ,Genetics (clinical) ,Transplantation ,Type 1 diabetes ,Univariate analysis ,C-Peptide ,Tumor Necrosis Factor-alpha ,business.industry ,Insulin ,Age Factors ,Hematopoietic Stem Cell Transplantation ,Cell Biology ,medicine.disease ,Confidence interval ,Surgery ,Diabetes Mellitus, Type 1 ,Treatment Outcome ,Oncology ,Predictive value of tests ,Multivariate Analysis ,Female ,business ,Biomarkers ,Follow-Up Studies - Abstract
Background aims Autologous hematopoietic stem cell transplantation (auto-HSCT) followed by immunoablation is a promising therapy for type 1 diabetes mellitus (T1DM) treatment due to the immunosuppression and immunomodulation mechanisms. Indeed, a considerable number of patients have been able to discontinue insulin use with this treatment. However, nonresponse and relapse occur after auto-HSCT. It is important to select the patients who can potentially benefit from this treatment, but the factors that might influence the therapeutic outcome are unclear. The objective of this study was to explore the predictors for prolonged remission after auto-HSCT therapy. Methods The data for this study were extracted from an open-label prospective study, which was performed to treat new-onset T1DM patients with auto-HSCT. The 128 patients were categorized into insulin-free (IF) or insulin-dependent (ID) groups according to their response to treatment during the follow-up. We compared the baseline data of the two groups and explored possible prognostic factors and their odd ratios (ORs) with univariate analysis and multivariate logistic regression. Receiver operating characteristic curves (ROC) were performed to test the model discrimination function. Results During a follow-up of 28.5 ± 8.3 months, 71 of 128 patients in the IF group discontinued insulin use, whereas 57 of 128 patients in the ID group did not decrease their insulin dose or resumed insulin treatment after a transient remission. Multivariate logistic regression analysis demonstrated that prolonged remission was positively correlated with fasting C-peptide level (OR = 2.60, 95% confidence interval [CI]: 1.16–5.85) but negatively correlated with onset age (OR = 0.36, 95% CI: 0.14–0.88) and tumor necrosis factor-α levels (OR = 0.32, 95% CI: 0.14–0.73). ROC analysis confirmed the combined predictive function of these three variables (AUC = 0.739, 95% CI: 0.655–0.824). Conclusions Age and fasting C-peptide and tumor necrosis factor-α levels were identified as possible predictors for prolonged remission following auto-HSCT therapy.
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- 2015
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10. Bevacizumab Inhibits Angiogenesis and Inflammation in Rat Filtration Surgery Model
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Jialiang Zhao, Guoxing Yang, Jianmin Ma, Gangwei Cheng, and Hang Xiang
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Vascular Endothelial Growth Factor A ,Oncology ,medicine.medical_specialty ,Pathology ,genetic structures ,Bevacizumab ,Angiogenesis ,Anti-Inflammatory Agents ,Biophysics ,Glaucoma ,Angiogenesis Inhibitors ,Inflammation ,Biochemistry ,Rats, Sprague-Dawley ,Transforming Growth Factor beta1 ,Transforming Growth Factor beta2 ,Postoperative Complications ,Western blot ,Angiogenesis Factor ,Internal medicine ,Animals ,Medicine ,medicine.diagnostic_test ,business.industry ,Cell Biology ,General Medicine ,medicine.disease ,eye diseases ,Rats ,Vascular endothelial growth factor A ,Filtration surgery ,Filtering Surgery ,sense organs ,medicine.symptom ,business ,Biomarkers ,medicine.drug - Abstract
Bevacizumab can be potentially applied in filtration surgery in glaucoma patients. However, its mechanism remains unclear. In order to explore it, here, we established rat filtration surgery model and treat rat with Bevacizumab. At different time points after surgery, filtering blebs were collected and subjected to angiogenesis and inflammation genes analysis. Our results found that Bevacizumab significantly improved the outcome of filtration surgery and reduced complications (P
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- 2015
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11. A Prognostic Biomarker for Gastric Cancer With Lymph Node Metastases
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Xiao-Jie Miao, Yue Wang, Yun-Tao Bi, Chao-Fu Ye, Qi-Xin Linq, Hang Xiang, Cheng-Yu Gong, Xiao-Hong Xu, Mei-Hua Zhang, Shang-Xian Gao, and Mao-Sheng Dong
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Oncology ,medicine.medical_specialty ,Histology ,medicine.diagnostic_test ,business.industry ,Case-control study ,Cancer ,medicine.disease ,Metastasis ,medicine.anatomical_structure ,Internal medicine ,Predictive value of tests ,Biopsy ,medicine ,Biomarker (medicine) ,Anatomy ,business ,Lymph node ,Ecology, Evolution, Behavior and Systematics ,Biotechnology ,Cancer staging - Abstract
Gastric cancer is one of the leading causes of tumor-related deaths in China. The tumor, node, metastasis (TNM) classification system is useful for predicting clinical prognosis of patients with gastric cancer. However, determining the presence of lymph node involvement in the early stages of gastric cancer is difficult without biopsy. Therefore, it is necessary to identify novel serum biomarkers for TNM cancer staging and prognostic follow-up. In this study, we have reported fibrinopeptide-A (FPA) with alanine truncation at the N-terminal as a novel biomarker to differentiate gastric cancer with and without lymph node metastases. We analyzed 369 individual serum samples including gastric cancer patients without lymph node metastases (n = 33), gastric cancer patients with lymph node metastases (n = 157; confirmed by pathology), and age- and sex-matched healthy individuals (n = 179). The data showed that 85.4% of patients with lymph node metastases were positive for FPA with alanine truncation at the N-terminal (degAla-FPA, 1,465.63 Da), as determined by tandem mass spectrometry (MS). Using degAla-FPA as the biomarker, the sensitivity was 85.4% for gastric cancer patients with lymph node metastases, and the specificity was 100% for gastric cancer patients without lymph node metastases. The high sensitivity and specificity achieved with serum degAla-FPA levels indicated that MS technology could facilitate the discovery of a novel and quantitative prognostic biomarker for gastric cancer with lymph node involvement.
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- 2013
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12. Influence of food groups on plasma total homocysteine for specific MTHFR C677T genotypes in Chinese population
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Cong Ma, Tianyuan Xiang, Weimin Wang, Fan Li, Chao Yang, Haixu Chen, Qiang Zeng, and Hang Xiang
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0301 basic medicine ,Vitamin ,Adult ,Male ,medicine.medical_specialty ,Folate ,Homocysteine ,Genotype ,Population ,Biology ,Food group ,03 medical and health sciences ,chemistry.chemical_compound ,0302 clinical medicine ,Folic Acid ,Asian People ,Gene Frequency ,Internal medicine ,medicine ,Humans ,Vitamin B12 ,education ,Allele frequency ,Methylenetetrahydrofolate Reductase (NADPH2) ,Research Articles ,Aged ,education.field_of_study ,030109 nutrition & dietetics ,Middle Aged ,Diet ,Vitamin B 12 ,Hcy ,Endocrinology ,chemistry ,Methylenetetrahydrofolate reductase ,MTHFR ,biology.protein ,Female ,Body mass index ,030217 neurology & neurosurgery ,Food Science ,Biotechnology ,Research Article - Abstract
1 Scope It has been demonstrated that a mutation of MTHFR C677T increases plasma total homocysteine (Hcy) concentration and decreases folate. Natural foods can improve Hcy levels, but the effect of certain foods remains undetermined. The aim of this study was to investigate the association between food groups and Hcy, and to explore the correlations between Hcy and dietary folate/vitamin (Vit) B12 for genotype‐specific population. 2 Methods and results A total of 4507 adults were enrolled in this study, all of whom underwent physical examinations and genotyping. A dietary recall questionnaire, which assessed the frequency (F) and quantity (Q) of food consumption, was completed by all. For the male CC group, after adjustment for age and BMI, fish (F) was negatively correlated with Hcy; for the male CT group, fish (F) and eggs (F) were negatively associated with Hcy, whereas cereal/wheat (Q) were positively correlated with Hcy; for the male TT group, fish (F), meat (Q), milk (F), and fruits/vegetables (Q) were negatively associated with Hcy, whereas sugar (Q) and salt (Q) were positively associated with Hcy. For the female CC group, fruits/vegetables (Q), eggs (F) and meat (F) were negatively correlated with Hcy, but soy (F) was positively correlated with Hcy; for the female CT group, eggs (F) and meat (Q) were negatively correlated with Hcy, whereas soy (F), fried foods (F) and salt (Q) were positively correlated with Hcy; for the female TT group, fish(F), eggs (F), and fruits/vegetables (F) were negatively associated with Hcy. Furthermore, we found that Hcy was more closely correlated with folate than with Vit B12 for males (CC, CT and TT) and female TT genotype. However, the correlation between Hcy and Vit B12 was stronger for the female CT/CC groups. 3 Conclusion Hcy levels were influenced by food groups to varying degrees, which were based on gender and MTHFR C677T genotypes. Hcy levels were more closely correlated with folate for males (CC, CT and TT) and the female TT group, but it was more closely correlated with Vit B12 for the female CT/CC groups.
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- 2016
13. Residual β-Cell Function Predicts Clinical Response After Autologous Hematopoietic Stem Cell Transplantation
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Fan Li, Zheng Wang, Hang Xiang, Xin Ge, Yuehan Su, Qiang Zeng, Xianyong Huang, Tianyuan Xiang, Chao Yang, and Haixu Chen
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0301 basic medicine ,Oncology ,Blood Glucose ,Male ,medicine.medical_specialty ,Time Factors ,Adolescent ,medicine.medical_treatment ,030209 endocrinology & metabolism ,Hematopoietic stem cell transplantation ,Kaplan-Meier Estimate ,Residual ,Transplantation, Autologous ,03 medical and health sciences ,0302 clinical medicine ,Insulin resistance ,Predictive Value of Tests ,Internal medicine ,Insulin-Secreting Cells ,medicine ,Humans ,Insulin ,Child ,Retrospective Studies ,Type 1 diabetes ,business.industry ,Quantitative insulin sensitivity check index ,Area under the curve ,Hematopoietic Stem Cell Transplantation ,Cell Biology ,General Medicine ,Recovery of Function ,medicine.disease ,Clinical trial ,030104 developmental biology ,Diabetes Mellitus, Type 1 ,Treatment Outcome ,Quartile ,ROC Curve ,Area Under Curve ,Immunology ,Linear Models ,Female ,Insulin Resistance ,Standards, Policies, Protocols, and Regulations for Cell-Based Therapies ,business ,Biomarkers ,Developmental Biology - Abstract
New strategies of autologous hematopoietic stem cell transplantation (auto-HSCT) have gained much interest for the treatment of type 1 diabetes mellitus. However, assessing the clinical response and residual β-cell function still has limitations. The aim of the study was to select the optimal quantitative index to assess pre-existing β-cell function and to explore its predictive function for clinical response after auto-HSCT therapy. In this study, all of the patients who had undergone auto-HSCT were clustered into a responder group (Δβ-score > 0) and a nonresponder group (Δβ-score ≤ 0). We compared their quantitative metabolic indexes at baseline and performed receiver-operating characteristic (ROC) analysis to analyze the correlations between the indexes and clinical response. Kaplan-Meier analysis was conducted to compare the cumulative response durations in each quartile of the selected indexes. In an average of 15.13 ± 6.15 months of follow-up, 44 of 112 patients achieved a clinical response. The responder group had lower levels of fasting plasma glucose and quantitative insulin sensitivity check index (QUICKI) but higher levels of fasting C-peptide, fasting insulin, and homeostasis model assessments for insulin resistance (HOMA-IR). ROC analysis showed that HOMA-IR had the largest area under the curve (0.756), which was similar to that of QUICKI. Kaplan-Meier analysis further confirmed that the third quartile (1.3371–1.7018) of HOMA-IR or the second quartile (0.3523–0.3657) of QUICKI was preferential for a prolonged response. In conclusion, HOMA-IR and QUICKI could be optimal measurements for β-cell reserves, and they were predictive for the clinical response after auto-HSCT. Significance The β-score was comprehensive and reliable in evaluating clinical response after autologous hematopoietic stem cell transplantation (HSCT). The homeostasis model assessments for insulin resistance and the quantitative insulin sensitivity check index could serve as precise assessments for residual β-cell function and good predictors of clinical response. They might be used to select optimal clinical trial participants or predict the clinical response after auto-HSCT.
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- 2015
14. Direct Effects of Bevacizumab on Rat Conjunctival Fibroblast
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Hang Xiang, Guoxing Yang, Jianmin Ma, Gangwei Cheng, and Jialiang Zhao
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Vascular Endothelial Growth Factor A ,Pathology ,medicine.medical_specialty ,genetic structures ,Bevacizumab ,medicine.medical_treatment ,Biophysics ,Glaucoma ,Angiogenesis Inhibitors ,Biochemistry ,Rats, Sprague-Dawley ,Transforming Growth Factor beta1 ,chemistry.chemical_compound ,Transforming Growth Factor beta2 ,medicine ,Trabeculectomy ,Animals ,Receptor ,Fibroblast ,Cells, Cultured ,Messenger RNA ,Vascular Endothelial Growth Factor Receptor-1 ,business.industry ,Cell Biology ,General Medicine ,Fibroblasts ,medicine.disease ,eye diseases ,Rats ,Vascular endothelial growth factor ,Real-time polymerase chain reaction ,medicine.anatomical_structure ,chemistry ,Cancer research ,business ,Conjunctiva ,medicine.drug - Abstract
Successful cases of treatment of Bevacizumab for preventing scar after trabeculectomy in glaucoma patients encourage us to explore its mechanism. In this study, we primarily isolated conjunctival fibroblast from rat. RT-PCR analysis for the cells implicated that conjunctival fibroblast expressed vascular endothelial growth factor (VEGF) and its receptors. Immunofluorescence staining also showed positive staining for VEGFR-1. Furthermore, growth of fibroblast was significantly inhibited by Bevacizumab at dose of 2.5 mg/ml. Real time PCR results showed after 48 h intervention of 2.5 mg/ml Bevacizumab, the mRNA expressions of VEGF and its receptors decreased compared to the control group (P
- Published
- 2015
15. GW25-e0513 Impact of obesity on long-term outcomes in patients with acute coronary syndrome and without diabetes
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Qiang Zeng, Man-Liu Wang, Sheng-Yong Dong, and Hang Xiang
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medicine.medical_specialty ,education.field_of_study ,Acute coronary syndrome ,business.industry ,Population ,Type 2 diabetes ,medicine.disease ,Obesity ,Coronary artery disease ,Internal medicine ,Heart failure ,Diabetes mellitus ,medicine ,Cardiology ,In patient ,education ,business ,Cardiology and Cardiovascular Medicine - Abstract
Obesity is associated with an increased cardiovascular events in the general population. However, recent studies have shown a paradoxic relation between obesity and adverse outcomes in patients with type 2 diabetes, coronary artery disease, heart failure, or hypertension. However, whether this
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- 2014
- Full Text
- View/download PDF
16. TLR4 is constitutively expressed in chick thymic epithelial cells
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Quan-Hang Xiang, Huazhen Liu, Le Wen, Ji-Xiang Wang, Xiao-Hong Ge, Abdur Rahman Ansari, Hai-Bo Huang, Hui Wu, and Kemei Peng
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medicine.medical_specialty ,animal structures ,Immunology ,Sus scrofa ,Thymus Gland ,Biology ,Real-Time Polymerase Chain Reaction ,Avian Proteins ,Immune system ,Species Specificity ,Internal medicine ,Keratin ,medicine ,Animals ,RNA, Messenger ,Receptor ,chemistry.chemical_classification ,Messenger RNA ,General Veterinary ,Cell growth ,Gene Expression Regulation, Developmental ,Epithelial Cells ,Molecular biology ,Immunohistochemistry ,Blot ,Toll-Like Receptor 4 ,Endocrinology ,Real-time polymerase chain reaction ,chemistry ,Keratins ,lipids (amino acids, peptides, and proteins) ,Female - Abstract
Toll-like receptor 4 (TLR4) has been suggested to play a regulatory role in immune cell development; however, studies regarding the role of TLR4 in the development of the chick thymus are scarce. In this study, we investigated the distribution and expression pattern of TLR4 in normal chick thymi at different stages of development, in order to better understand the role of TLR4 in chick thymus development. We studied the thymi from 15 chicks, collected at days 7, 21 and 35 of age. The relative change in TLR4 mRNA expression in the chick thymus at different ages was determined by quantitative real-time PCR, and changes in protein expression were analyzed by immunohistochemistry and Western blotting. Furthermore, the distribution of TLR4 in the chick thymus was analyzed by immunohistochemistry, and compared with the distribution of TLR4 expression in juvenile female pigs (gilts). Our results indicated that TLR4 was constitutively expressed in the chick thymus. TLR4 was primarily expressed in the thymic cortico-medullary junction and the medulla, particularly in the epithelial cells of Hassall's corpuscles. The mRNA and protein expression level of TLR4 increased in the thymus with increasing age (p
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- 2013
17. Physiologically tolerable insulin reduces myocardial injury and improves cardiac functional recovery in myocardial ischemic/reperfused dogs
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Shao-Jun Liang, Hang-xiang Zhang, Feng Gao, Qian Fan, Hai-Feng Zhang, Yuemin Wang, Wenyi Guo, Yi-Min Zang, Hai-Chang Wang, and Jian-Hua Huo
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Cardiac function curve ,Blood Glucose ,Male ,medicine.medical_specialty ,Time Factors ,medicine.medical_treatment ,Ischemia ,Myocardial Infarction ,Apoptosis ,Myocardial Reperfusion Injury ,Ventricular Function, Left ,Coronary circulation ,Dogs ,Internal medicine ,Coronary Circulation ,medicine ,In Situ Nick-End Labeling ,Animals ,Hypoglycemic Agents ,Insulin ,Myocytes, Cardiac ,Myocardial infarction ,Infusions, Intravenous ,Reactive hyperemia ,Creatine Kinase ,Pharmacology ,Dose-Response Relationship, Drug ,L-Lactate Dehydrogenase ,business.industry ,Blood flow ,medicine.disease ,medicine.anatomical_structure ,Glucose ,Cardiology ,Potassium ,Female ,Cardiology and Cardiovascular Medicine ,business ,Reperfusion injury - Abstract
This study was designed to examine whether physiologically tolerable insulin, which maintains lower blood glucose, can protect the myocardium against ischemia/reperfusion (I/R) injury in a preclinical large animal model. Adult dogs were subjected to 50 minutes of myocardial ischemia (80% reduction in coronary blood flow) followed by 4 hours of reperfusion and treated with vehicle, glucose-insulin-potassium (GIK; glucose, 250 g/L; insulin, 60 U/L; potassium, 80 mmol/L), GK, or low-dose insulin (30 U/L) 10 minutes before reperfusion. Treatment with GIK exerted significant cardioprotective effects as evidenced by improved cardiac function, improved coronary blood flow, reduced infarct size, and myocardial apoptosis. In contrast, treatment with GK increased blood glucose level and aggravated myocardial I/R injury. It is interesting that treatment with insulin alone at the dose that reduced blood glucose to a clinically tolerable level exerted significant cardioprotective effects that were comparable to that seen in the GIK-treated group. This low-dose insulin had no effect on coronary blood flow after reperfusion but markedly reduced coronary reactive hyperemia and switched myocardial substrate uptake from fat to carbohydrate. Our results suggest that lower glucose supply to the ischemic myocardium at early reperfusion may create a "metabolic postconditioning" and thus reduce myocardial ischemia/reperfusion injury after prolonged reperfusion.
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- 2007
18. Comparison of outcome of allogeneic bone marrow transplantation with and without granulocyte colony-stimulating factor (lenograstim) donor-marrow priming in patients with chronic myelogenous leukemia
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Hang-Xiang Wang, Hong-Ming Yan, Shi-ping Pan, Chang-qing Xun, Shu-Quan Ji, and Hui-Ren Chen
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Adult ,Male ,medicine.medical_specialty ,Platelet Engraftment ,Adolescent ,medicine.medical_treatment ,Graft vs Host Disease ,Hematopoietic stem cell transplantation ,Gastroenterology ,Lenograstim ,Myelogenous ,Internal medicine ,Leukemia, Myelogenous, Chronic, BCR-ABL Positive ,Granulocyte Colony-Stimulating Factor ,medicine ,Humans ,Transplantation, Homologous ,Prospective Studies ,Child ,Bone Marrow Transplantation ,Transplantation ,business.industry ,Graft Survival ,Hematology ,medicine.disease ,Survival Analysis ,Hematopoietic Stem Cell Mobilization ,Recombinant Proteins ,Granulocyte colony-stimulating factor ,Leukemia ,Treatment Outcome ,Immunology ,Female ,business ,Chronic myelogenous leukemia ,Follow-Up Studies - Abstract
To investigate the effect of granulocyte colony-stimulating factor (G-CSF) donor-marrow priming on hematopoietic recovery and clinical outcome after allogeneic hematopoietic stem cell transplantation, we compared HILA-matched related marrow transplantation with and without G-CSF donor priming in a prospective randomized study for a homogeneous group of chronic myelogenous leukemia (CML) patients. Fifty patients (aged 12-41 years) with CML were enrolled in the study. Thirty-two patients (study group) received the marrow grafts primed with G-CSF at 3 to 4 micro/kg per day for 7 days prior to the marrow harvest, and 18 patients (control group) received the marrow grafts without G-CSF priming. All patients received the same graft-versus-host disease (GVHD) prophylaxis (cyclosporine A and methotrexate) and postgraft G-CSF treatment, 3 to 4 micro/kg daily until the absolute neutrophil counts (ANCs) were >10(9)/L. The primary end points were engraftment and incidence of acute GVHD. The secondary end points were the incidence of chronic GVHD, relapse, and overall disease-free survival. The study and control groups were comparable for age, sex, donor selections, conditioning regimens, and disease status. The median times to both neutrophil and platelet engraftment (ANC > 0.5 x 10(9)/L; platelets > 20 x 10(9)/L) were significantly faster in the study group than in the control group, at 15 versus 21 days (P < .001) and 17.5 versus 24 days (P < .001), respectively. G-CSF donor printing yielded significantly higher numbers of total nuclear cells in the marrow grafts compared to the numbers in the control grafts (7.2 versus 2.9 x 10(8)/kg, P < .001). Similar results were seen for CD34+ (6.1versus 2.7 x 10(6)/kg, P < .001) and colony-forming unit-granulocyte/macrophage (CFU-GM) cells (68 versus 16 x 10(4)/kg, P < .001). The incidence of grades II to IV acute GVHD was surprisingly low in the study group: only 2 (6.3%) of 32 transplantation patients in the study group developed grade II acute GVHD, limited to the skin, whereas 5 (27.8%) of 18 patients in the control group developed grades II to IV acute GVHD (P = .032). G-CSF priming did not change the total numbers of CD3+ cells in the marrow grafts but lowered CD4+ cells and increased CD8+ cells, resulting in a significant reduction of CD4:CD8 ratio (P = .018). Six patients in the study group developed chronic GVHD either during or after cyclosporine taper. There were no significant differences in chronic GVHD (24% versus 33.3%), relapse rates (12.5% versus 11.1%), and overall survival rates (78.1% versus 66.7%, P = .32) between the study and control groups during a median follow-up period of 24 months (range, 6-50 months). There was, however, a trend in favor of improved chronic GVHD and disease-free survival in the study group. We conclude that G-CSF donor-marrow priming accelerates both neutrophil and platelet engraftment and is associated with a very low incidence of grades II to IV acute GVHD in CML patients after HLA-matched sibling marrow transplantation.Biol Blood Marrow Transplant 2002;8(5):261-7.
- Published
- 2002
19. Association of EZSCAN Values with Arterial Stiffness in Individuals without Diabetes or Cardiovascular Disease
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Qiang Zeng, Hang Xiang, Sheng-Yong Dong, Xiao-Lan Zhao, and Man-Liu Wang
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Epidemiology ,Population Dynamics ,lcsh:Medicine ,Blood Pressure ,Coronary Artery Disease ,Cardiovascular ,Endocrinology ,Mass Screening ,Medicine ,lcsh:Science ,Pulse wave velocity ,Multidisciplinary ,Postprandial ,Cardiovascular Diseases ,Cardiology ,Research Article ,Test Evaluation ,medicine.medical_specialty ,Clinical Research Design ,Blood sugar ,Pulse Wave Analysis ,Autonomic Nervous System ,Vascular Stiffness ,Diagnostic Medicine ,Predictive Value of Tests ,Diabetes mellitus ,Internal medicine ,Humans ,Ankle Brachial Index ,Biology ,Mass screening ,Glucose Metabolism Disorders ,Diabetic Endocrinology ,Population Biology ,business.industry ,lcsh:R ,Diabetes Mellitus Type 2 ,Atherosclerosis ,medicine.disease ,body regions ,Biomarker Epidemiology ,Blood pressure ,Multivariate Analysis ,Linear Models ,Arterial stiffness ,lcsh:Q ,Blood sugar regulation ,business - Abstract
Background The EZSCAN test was recently developed to screen for early dysglycemia through an assessment of sudomotor function. Given the associations of dysglycemia and autonomic dysfunction with the development of arterial stiffness, EZSCAN may also detect early arterial stiffness. The aim of this study was to investigate the association of EZSCAN with arterial stiffness across blood glucose levels. Methodology and Principal Findings A total of 5532 participants without diabetes or established cardiovascular disease were evaluated with EZSCAN. Their central systolic blood pressure (cSBP), brachial-ankle pulse wave velocity (baPWV), and ankle-brachial index (ABI) were also measured. Multivariate linear regression analyses were used to assess the association between the EZSCAN value and the cSBP, baPWV, and ABI measurements in all of the participants, with additional subgroup analysis that separated participants into a normal glucose tolerance (NGT) group and an impaired glucose regulation (IGR) group. The frequency of the IGRs increased with quartiles of the EZSCAN value (P for trend
- Published
- 2014
- Full Text
- View/download PDF
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