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Fang S, Liu Z, Qiu Q, Tang Z, Yang Y, Kuang Z, Du X, Xiao S, Liu Y, Luo Y, Gu L, Tian L, Liang X, Fan G, Zhang Y, Zhang P, Zhou W, Liu X, Tian J, Wei W. Diagnosing and grading gastric atrophy and intestinal metaplasia using semi-supervised deep learning on pathological images: development and validation study. Gastric Cancer 2024; 27:343-354. [PMID: 38095766 PMCID: PMC10896941 DOI: 10.1007/s10120-023-01451-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Accepted: 11/09/2023] [Indexed: 02/28/2024]
Abstract
OBJECTIVE Patients with gastric atrophy and intestinal metaplasia (IM) were at risk for gastric cancer, necessitating an accurate risk assessment. We aimed to establish and validate a diagnostic approach for gastric biopsy specimens using deep learning and OLGA/OLGIM for individual gastric cancer risk classification. METHODS In this study, we prospectively enrolled 545 patients suspected of atrophic gastritis during endoscopy from 13 tertiary hospitals between December 22, 2017, to September 25, 2020, with a total of 2725 whole-slide images (WSIs). Patients were randomly divided into a training set (n = 349), an internal validation set (n = 87), and an external validation set (n = 109). Sixty patients from the external validation set were randomly selected and divided into two groups for an observer study, one with the assistance of algorithm results and the other without. We proposed a semi-supervised deep learning algorithm to diagnose and grade IM and atrophy, and we compared it with the assessments of 10 pathologists. The model's performance was evaluated based on the area under the curve (AUC), sensitivity, specificity, and weighted kappa value. RESULTS The algorithm, named GasMIL, was established and demonstrated encouraging performance in diagnosing IM (AUC 0.884, 95% CI 0.862-0.902) and atrophy (AUC 0.877, 95% CI 0.855-0.897) in the external test set. In the observer study, GasMIL achieved an 80% sensitivity, 85% specificity, a weighted kappa value of 0.61, and an AUC of 0.953, surpassing the performance of all ten pathologists in diagnosing atrophy. Among the 10 pathologists, GasMIL's AUC ranked second in OLGA (0.729, 95% CI 0.625-0.833) and fifth in OLGIM (0.792, 95% CI 0.688-0.896). With the assistance of GasMIL, pathologists demonstrated improved AUC (p = 0.013), sensitivity (p = 0.014), and weighted kappa (p = 0.016) in diagnosing IM, and improved specificity (p = 0.007) in diagnosing atrophy compared to pathologists working alone. CONCLUSION GasMIL shows the best overall performance in diagnosing IM and atrophy when compared to pathologists, significantly enhancing their diagnostic capabilities.
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Affiliation(s)
- Shuangshuang Fang
- Beijing Key Laboratory of Functional Gastrointestinal Disorders Diagnosis and Treatment of Traditional Chinese Medicine; Department of Gastroenterology, Wangjing Hospital, China Academy of Chinese Medical Sciences, No. 6, Zhonghuan South Road, Wangjing, Beijing, 100102, China
| | - Zhenyu Liu
- CAS Key Laboratory of Molecular Imaging, Institute of Automation, Chinese Academy of Sciences, Beijing, 100190, China
- School of Artificial Intelligence, University of Chinese Academy of Science, Beijing, 100190, China
| | - Qi Qiu
- CAS Key Laboratory of Molecular Imaging, Institute of Automation, Chinese Academy of Sciences, Beijing, 100190, China
- School of Artificial Intelligence, University of Chinese Academy of Science, Beijing, 100190, China
| | - Zhenchao Tang
- Beijing Advanced Innovation Center for Big Data-Based Precision Medicine, School of Engineering Medicine, Beihang University, Beijing, 100191, China
| | - Yang Yang
- Beijing Key Laboratory of Functional Gastrointestinal Disorders Diagnosis and Treatment of Traditional Chinese Medicine; Department of Gastroenterology, Wangjing Hospital, China Academy of Chinese Medical Sciences, No. 6, Zhonghuan South Road, Wangjing, Beijing, 100102, China
| | - Zhongsheng Kuang
- Department of Pathology, The First Affiliated Hospital of Guangdong University of Traditional Chinese Medicine, Guangzhou, 510405, China
| | - Xiaohua Du
- Department of Pathology, Guangdong Provincial Hospital of Traditional Chinese Medicine, Guangzhou, 510120, China
| | - Shanshan Xiao
- Department of Pathology, The First Affiliated Hospital of Guangdong University of Traditional Chinese Medicine, Guangzhou, 510405, China
| | - Yanyan Liu
- Department of Pathology, The First Affiliated Hospital of Guangdong University of Traditional Chinese Medicine, Guangzhou, 510405, China
| | - Yuanbin Luo
- Department of Pathology, Gansu Provincial Hospital of Traditional Chinese Medicine, Lanzhou, 730050, China
| | - Liping Gu
- Department of Pathology, Gansu Provincial Hospital of Traditional Chinese Medicine, Lanzhou, 730050, China
| | - Li Tian
- Department of Pathology, Gansu Provincial Hospital of Traditional Chinese Medicine, Lanzhou, 730050, China
| | - Xiaoxia Liang
- Department of Pathology, Shanxi Provincial Hospital of Traditional Chinese Medicine, Taiyuan, 030012, China
| | - Guiling Fan
- Department of Pathology, Shanxi Provincial Hospital of Traditional Chinese Medicine, Taiyuan, 030012, China
| | - Yu Zhang
- Department of Pathology, Shanxi Provincial Hospital of Traditional Chinese Medicine, Taiyuan, 030012, China
| | - Ping Zhang
- Department of Pathology, Wangjing Hospital, China Academy of Chinese Medical Sciences, Beijing, 100102, China
| | - Weixun Zhou
- Department of Pathology, Peking Union Medical College Hospital, Beijing, 100730, China
| | - Xiuli Liu
- Department of Pathology and Immunology, Washington University, St. Louis, MO, 98195, USA
| | - Jie Tian
- CAS Key Laboratory of Molecular Imaging, Institute of Automation, Chinese Academy of Sciences, Beijing, 100190, China
- School of Artificial Intelligence, University of Chinese Academy of Science, Beijing, 100190, China
- Beijing Advanced Innovation Center for Big Data-Based Precision Medicine, School of Engineering Medicine, Beihang University, Beijing, 100191, China
- Engineering Research Center of Molecular and Neuro Imaging of Ministry of Education, School of Life Science and Technology, Xidian University, Xi'an, 710126, Shaanxi, China
| | - Wei Wei
- Beijing Key Laboratory of Functional Gastrointestinal Disorders Diagnosis and Treatment of Traditional Chinese Medicine; Department of Gastroenterology, Wangjing Hospital, China Academy of Chinese Medical Sciences, No. 6, Zhonghuan South Road, Wangjing, Beijing, 100102, China.
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Xiao S, Lin Y, Fu J, Weng X, Cao Q, Kuang Z, Yun J, Zhang M, Huang Y. Epstein-Barr Virus-Positive Plasma Cell Neoplasms in Immunocompetent Patients: A Clinicopathological Study of 15 Cases from South China and Literature Review. Am J Surg Pathol 2024; 48:16-26. [PMID: 38117285 DOI: 10.1097/pas.0000000000002140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2023]
Abstract
Epstein-Barr virus (EBV)-positive plasma cell neoplasms (PCNs) in immunocompetent patients are a rare entity, the clinicopathological and prognostic features of which have not been well characterized. Fifteen cases of EBV-positive PCN arising in immunocompetent patients from south China were retrospectively analyzed, and an additional 44 cases from the literature were reviewed. The overall EBV-positive rate defined by EBV-encoded small RNAs (EBERs) in-situ hybridization of PCNs was 12.3% (15/122), and it was significantly higher in plasmacytoma (17.1%, 13/76) than in plasma cell myeloma/multiple myeloma (4.3%, 2/46; P=0.031). The age of the patients ranged from 17 to 79 years, with a median age of 56 years. There was a large preponderance of men, with a male-to-female ratio of 4:1. Solitary plasmacytoma of bone (23.8%, 5/21) had comparable EBV-encoded small RNAs-positive rates with extramedullary plasmacytoma arising in the upper respiratory tract (19.5%, 8/41; P=0.949). Anaplastic and classic cytologic appearance was observed in 61.5% (8/13) and 38.5% (5/13) of EBV-positive plasmacytomas, respectively. Cases with an anaplastic cytologic appearance had a significantly higher Ki-67 proliferation index than those with a classic cytologic appearance (median: 55% vs. 10%, P=0.001). In the combined cohorts, anaplastic/plasmablastic cytologic appearance was significantly more common in extramedullary plasmacytoma arising in the upper respiratory tract (72.0%, 18/25) than outside the upper respiratory tract (11.1%, 1/9; P=0.006). Among the 59 cases of EBV-positive PCN, survival data of 34 cases were available for analysis, including 30 cases of plasmacytoma and 4 cases of plasma cell myeloma/multiple myeloma. There was no statistically significant difference in overall survival between patients with EBV-positive plasmacytomas in the combined cohorts and EBV-negative plasmacytomas in the present cohort. The prevalence of EBV in PCN in immunocompetent patients varies according to histologic subtype and tumor location. Compared with EBV-negative cases, EBV-positive plasmacytomas tend to have an anaplastic/plasmablastic cytologic appearance. No significant impact of EBV infection on clinical outcomes is observed in the limited number of reported cases.
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Affiliation(s)
- Shanshan Xiao
- Department of Pathology, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine; Sun Yat-sen University Cancer Center
- Department of Pathology, First Affiliated Hospital of Guangzhou University of Chinese Medicine
| | - Yansong Lin
- Department of Pathology, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine; Sun Yat-sen University Cancer Center
| | - Jia Fu
- Department of Pathology, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine; Sun Yat-sen University Cancer Center
| | - Xin Weng
- Department of Pathology, Shenzhen Second People's Hospital, Shenzhen University First Affiliated Hospital, Shenzhen, Guangdong, China
| | - Qinghua Cao
- Department of Pathology, First Affiliated Hospital of Sun Yat-sen University
| | - Zhongsheng Kuang
- Department of Pathology, First Affiliated Hospital of Guangzhou University of Chinese Medicine
| | - Jingping Yun
- Department of Pathology, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine; Sun Yat-sen University Cancer Center
| | - Meifang Zhang
- Department of Pathology, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine; Sun Yat-sen University Cancer Center
| | - Yuhua Huang
- Department of Pathology, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine; Sun Yat-sen University Cancer Center
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Zhang JH, Zhou SJ, Kuang Z, Qin ZH, Tan LW, Shao YT. [Expression profile of circular RNA in inflammatory response in human bronchial epithelial cells induced by carbon black nanoparticles]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2023; 41:576-581. [PMID: 37667152 DOI: 10.3760/cma.j.cn121094-20220501-00251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 09/06/2023]
Abstract
Objective: To explore the toxic effect of carbon black nanoparticles on human bronchial epithelial cells, and identify the differentially expressed circular RNA based on the full transcriptome high-throughput sequencing, so as to provide evidence for the development of biomarkers exposed to carbon black nanoparticles and their application on epigenetic toxicology. Methods: In June 2020, 16 HBE cells were treated with carbon black nanoparticles at concentrations of 20, 40 and 80 μg/ml, and 16 HBE cells without any intervention were used as the control group. The cytotoxicity of carbon black nanoparticles was detected by CCK8 and LDH experiments. Real-time quantitative fluorescent PCR (qRT-PCR) and ELISA were used to detect the changes of interleukin-6 (IL-6) and interleukin-8 (IL-6, IL-8) mRNA and protein levels of carbon black nanoparticles with concentration gradient after 72 h exposure. Western blot analysis was conducted to detect the expression levels of toll-like receptor 4 (TLR4), phosphorylated nuclear factor-κB (P-NF-κB), apoptosis-related speckled protein (ASC) and Caspase-1 associated with nuclear factor-κB. According to high-throughput sequencing results, differentially expressed Circrnas were screened and identified by qRT-PCR, and those with stable differentially expressed circrnas and the strongest association with the NF-κB pathway were selected for ring performance identification. Results: After being exposed to carbon black nanoparticles for 72 h, the activity of 16HBE cells decreased significantly (P<0.05), and the release of lactate dehydrogenase increased significantly (P<0.05). Compared with control group, mRNA expression levels of IL-6 and IL-8, protein levels of IL-6 and IL-8 were increased, and protein levels of TLR4, p-NF-κB, ASC and Caspase-1 were significantly up-regulated in 16 HBE cells of different concentrations, with statistical significance (P<0.05). Compared with the control group, a total of 492 differentially expressed circular Rnas (|log2 FC|>1) were detected. Among the 5 differentially expressed (P<0.05) circular Rnas, circ_002642 was selected as the object of subsequent research on circular Rnas, affter 72 hours of exposure to 80 μg/ml CBNPs, 16HBE cells showed signlficantly higher expression of circ_002642 (P<0.05) . Conclusion: Carbon black nanoparticles can induce differentially expressed circular RNAs associated with inflammatory response in human bronchial epithelial cells.
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Affiliation(s)
- J H Zhang
- School of Public Health, Guangzhou Medical University, Guangzhou 511436, China
| | - S J Zhou
- School of Public Health, Guangzhou Medical University, Guangzhou 511436, China
| | - Z Kuang
- School of Public Health, Guangzhou Medical University, Guangzhou 511436, China
| | - Z H Qin
- School of Public Health, Guangzhou Medical University, Guangzhou 511436, China
| | - L W Tan
- School of Public Health, Guangzhou Medical University, Guangzhou 511436, China
| | - Y T Shao
- School of Public Health, Guangzhou Medical University, Guangzhou 511436, China
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Liu M, Cai R, Wang T, Yang X, Wang M, Kuang Z, Xie Y, Zhang J, Zheng Y. LAMC2 promotes the proliferation of cancer cells and induce infiltration of macrophages in non-small cell lung cancer. Ann Transl Med 2021; 9:1392. [PMID: 34733944 PMCID: PMC8506528 DOI: 10.21037/atm-21-4507] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Accepted: 09/08/2021] [Indexed: 12/12/2022]
Abstract
Background Non-small-cell lung cancer (NSCLC) is the most prevalent cancer worldwide. Tumor microenvironment (TME) plays a very important role in the cancer development. Thus, it is urgent to find the change of TME that contributes to NSCLC carcinogenesis and progression. Methods The bioinformatics analysis approach was applied to evaluate the change of TME and screen the differentially immune cells in NSCLC tissue based on The Cancer Genome Atlas (TCGA) data. Meanwhile, the association of differentially immune cells with tumor stage and prognosis of NSCLC was evaluated. Then, we screen the different expression genes between macrophages infiltration high group and low group. After that, the expression of LAMC2 was detected in 48 cases of NSCLC tissues and paired normal tissues. The function of LAMC2 was detected through cell experiments in vitro. Immunohistochemistry assay was used to detect the correlation between LAMC2 expression and macrophages infiltration in NSCLC tissue. LAMC2-related pathways were identified by gene set enrichment analysis. Results Compared with early stage, middle-advanced stage of NSCLC exhibited lower immune score. Macrophages were the main component of different immune cells and correlated with poor outcome. The results of immunohistochemistry indicated that the expression of LAMC2 in NSCLC tissues was higher than paired normal tissues. Down-regulation of LAMC2 inhibited the proliferation, migration and invasion of NSCLC cells in vitro. Overexpression of LAMC2 was positively associated with macrophages infiltration in NSCLC tissues. Inhibition of LAMC2 expression in NSCLC cells could reduce THP-1 infiltration, and LAMC2 protein could promote the infiltration of THP-1. The Gene Set Enrichment Analysis results showed that high expression of LAMC2 was correlated with focal adhesion and extracellular matrix receptor interaction. Conclusions Immune suppression and macrophages infiltration were correlated with poor outcomes in NSCLC. LAMC2 promoted macrophages infiltration and extracellular matrix remolding in NSCLC. Our studies suggested an oncogenic role of LAMC2 in NSCLC progression and it perhaps serve as a potential immune therapy target for NSCLC.
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Affiliation(s)
- Meiyuan Liu
- Department of Oncology, Zhujiang Hospital of Southern Medical University, Guangzhou, China.,Department of Medical Oncology, Affiliated Cancer Hospital & Institute of Guangzhou Medical University, Guangzhou, China
| | - Rui Cai
- Department of Medical Oncology, Affiliated Cancer Hospital & Institute of Guangzhou Medical University, Guangzhou, China
| | - Tian Wang
- Department of Oncology, Zhujiang Hospital of Southern Medical University, Guangzhou, China
| | - Xia Yang
- Department of Medical Oncology, Affiliated Cancer Hospital & Institute of Guangzhou Medical University, Guangzhou, China
| | - Meng Wang
- Department of Medical Oncology, Affiliated Cancer Hospital & Institute of Guangzhou Medical University, Guangzhou, China
| | - Zhongsheng Kuang
- Department of Pathology, The First Affiliated Hospital of Guangzhou Traditional Chinese Medicine University, Guangzhou, China
| | - Yuhui Xie
- Department of Pathology, The First Affiliated Hospital of Guangzhou Traditional Chinese Medicine University, Guangzhou, China
| | - Jiren Zhang
- Department of Oncology, Zhujiang Hospital of Southern Medical University, Guangzhou, China
| | - Yanfang Zheng
- Department of Medical Oncology, Affiliated Cancer Hospital & Institute of Guangzhou Medical University, Guangzhou, China
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Li Z, Ma J, Kuang Z, Jiang Y. β-Asarone Attenuates Aβ-Induced Neuronal Damage in PC12 Cells Overexpressing APPswe by Restoring Autophagic Flux. Front Pharmacol 2021; 12:701635. [PMID: 34393783 PMCID: PMC8355419 DOI: 10.3389/fphar.2021.701635] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Accepted: 07/19/2021] [Indexed: 11/29/2022] Open
Abstract
Alzheimer’s disease (AD) is a neurodegenerative disorder characterized by progressive memory damage and cognitive dysfunction. Studies have shown that defective autophagic flux is associated with neuronal dysfunction. Modulating autophagic activity represents a potential method of combating AD. In Chinese medicine, Acori Tatarinowii Rhizoma is used to treat dementia and amnesia. β-Asarone, an active component of this rhizome can protect PC12 cells from Aβ-induced injury and modulate expression of autophagy factors. However, its cytoprotective mechanisms have yet to be discerned. It is unclear whether β-asarone affects autophagic flux and, if it does, whether this effect can alleviate Aβ cell damage. In the present study, we constructed APPswe-overexpressing PC12 cell line as a cell model of Aβ-induced damage and assessed expression of autophagic flux-related proteins as well as the number and morphology of autophagosomes and autolysosomes. Our results show that β-asarone decreases the expression levels of Beclin-1, p62, LC3-Ⅱ, and Aβ1-42. β-Asarone reduced the number of autophagosomes and increased the number of autolysosomes, as determined by confocal laser scanning microscopy and transmission electron microscopy. Our results suggest that β-asarone can protect PC12 cells from Aβ-induced damage by promoting autophagic flux, which may be achieved by enhancing autophagosome-lysosome fusion and/or lysosome function.
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Affiliation(s)
- Zhenwan Li
- The First Clinical Medical College, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Jin Ma
- The First Clinical Medical College, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Zhongsheng Kuang
- The First Clinical Medical College, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Yong Jiang
- The First Clinical Medical College, Guangzhou University of Chinese Medicine, Guangzhou, China
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Geng S, Kuang Z, Peissig PL, Page D, Maursetter L, Hansen KE. Parathyroid hormone independently predicts fracture, vascular events, and death in patients with stage 3 and 4 chronic kidney disease. Osteoporos Int 2019; 30:2019-2025. [PMID: 31190122 DOI: 10.1007/s00198-019-05033-3] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/13/2019] [Accepted: 05/22/2019] [Indexed: 12/18/2022]
Abstract
UNLABELLED Doctors do not know whether treatment of high parathyroid hormone levels is linked to better outcomes in their patients with kidney disease. In this study, lower parathyroid hormone levels at baseline were linked to lower risk of fracture, vascular events, and death in people with kidney disease. PURPOSE Chronic kidney disease (CKD) affects ~ 20% of older adults, and secondary hyperparathyroidism (HPT) is a common condition in these patients. To what degree HPT predicts fractures, vascular events, and mortality in pre-dialysis CKD patients is debated. In stage 3 and 4 CKD patients, we assessed relationships between baseline serum PTH levels and subsequent 10-year probabilities of clinical fractures, vascular events, and death. METHODS We used Marshfield Clinic Health System electronic health records to analyze data from adult CKD patients receiving care between 1985 and 2013, and whose PTH was measured using a second-generation assay. Covariates included PTH, age, gender, tobacco use, vascular disease, diabetes, hypertension, hyperlipidemia, obesity, GFR, and use of osteoporosis medications. RESULTS Five thousand one hundred eight subjects had a mean age of 68 ± 17 years, 48% were men, and mean follow-up was 23 ± 10 years. Fractures, vascular events, and death occurred in 18%, 71%, and 56% of the cohort, respectively. In univariate and multivariate models, PTH was an independent predictor of fracture, vascular events, and death. The hazards of fracture, vascular events and death were minimized at a baseline PTH of 0, 69, and 58 pg/mL, respectively. CONCLUSIONS We found that among individuals with stage 3 and 4 CKD, PTH was an independent predictor of fractures, vascular events, and death. Additional epidemiologic studies are needed to confirm these findings. If a target PTH range can be confirmed, then randomized placebo-controlled trials will be needed to confirm that treating HPT reduces the risk of fracture, vascular events, and death.
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Affiliation(s)
- S Geng
- Department of Computer Science, Princeton University, Princeton, NJ, USA
| | - Z Kuang
- Computer Science Department, Stanford University, Stanford, CA, USA
| | - P L Peissig
- Center for Computational and Biomedical Informatics, Marshfield Clinic Research Institute, Marshfield, WI, USA
| | - D Page
- Department of Biostatistics and Medical Informatics, Department of Computer Sciences, University of Wisconsin-Madison, Madison, WI, USA
| | - L Maursetter
- Department of Medicine, University of Wisconsin School of Medicine & Public Health, Mailbox 4124, Medical Foundation Centennial Building, 1685 Highland Avenue, Madison, WI, 53705-2281, USA
| | - K E Hansen
- Department of Medicine, University of Wisconsin School of Medicine & Public Health, Mailbox 4124, Medical Foundation Centennial Building, 1685 Highland Avenue, Madison, WI, 53705-2281, USA.
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Gao H, Kuang Z, Zhong CX, Liang XE, Fan R, Wang KF, Lin WY, Hou JL, Sun J. [Prevalence and risk factors of nonalcoholic fatty liver disease in patients with chronic hepatitis B receiving antiviral therapy]. Zhonghua Gan Zang Bing Za Zhi 2019; 27:347-351. [PMID: 31177658 DOI: 10.3760/cma.j.issn.1007-3418.2019.05.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the prevalence and risk factors of non-alcoholic fatty liver disease(NAFLD) in patients with chronic hepatitis B(CHB) receiving antiviral treatment. Methods: The cross-sectional study included 3 477 cases with CHB who received antiviral therapy. The prevalence of NAFLD was investigated, and then the risk factors were screened and analyzed by stepwise regression method in CHB patients with NAFLD as the dependent variable and the related influencing factors as independent variables. Results: The prevalence of NAFLD was 24.1% in CHB patients who received antiviral therapy. After adjusting for age and gender, central obesity (OR: 7.44, 95%CI: 6.06 ~ 9.14), hypertension (OR: 1.74, 95%CI: 1.51 ~ 2.20), and triglyceride (OR: 1.52, 95%CI: 1.18 ~ 1.96) were positively associated with NAFLD, and cirrhosis was negatively associated with NAFLD (OR: 0.42, 95%CI: 0.34 ~ 0.53). Patients with long-term antiviral therapy had increased risk of NAFLD. Conclusion: A significant proportion of CHB patients receiving antiviral therapy have suffered from NAFLD. Therefore, CHB patients receiving long-term antiviral treatment should pay more attention to the prevalence of NAFLD.
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Affiliation(s)
- H Gao
- State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Viral Hepatitis Research, Department of Infectious Diseases, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
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Harris-Tryon T, Gattu S, Propheter D, Kuang Z, Bel S, Ruhn K, Jo J, Zouboulis C, Kong H, Segre J, Hooper L. 945 Resistin-like molecule α provides vitamin A-dependent antimicrobial protection of the skin. J Invest Dermatol 2018. [DOI: 10.1016/j.jid.2018.03.957] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Affiliation(s)
- I. Pázsit
- Chalmers University of Technology, Department of Reactor Physics SE-412 96 Göteborg, Sweden
| | - M. Ceder
- Chalmers University of Technology, Department of Reactor Physics SE-412 96 Göteborg, Sweden
| | - Z. Kuang
- Chalmers University of Technology, Department of Reactor Physics SE-412 96 Göteborg, Sweden
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Notholt J, Kuang Z, Rinsland CP, Toon GC, Rex M, Jones N, Albrecht T, Deckelmann H, Krieg J, Weinzierl C, Bingemer H, Weller R, Schrems O. Enhanced upper tropical tropospheric COS: impact on the stratospheric aerosol layer. Science 2003; 300:307-10. [PMID: 12690193 DOI: 10.1126/science.1080320] [Citation(s) in RCA: 88] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
Carbonyl sulfide (COS) is considered to be a major source of the stratospheric sulfate aerosol during periods of volcanic quiescence. We measured COS at the tropical tropopause and find mixing ratios to be 20 to 50% larger than are assumed in models. The enhanced COS levels are correlated with high concentrations of biomass-burning pollutants like carbon monoxide (CO) and hydrogen cyanide (HCN). The analysis of backward trajectories and global maps of fire statistics suggest that biomass-burning emissions transported upward by deep convection are the source of the enhanced COS in the upper tropical troposphere.
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Affiliation(s)
- J Notholt
- University of Bremen, D-28334 Bremen, Germany.
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Zhang Q, Li S, Guo X, Guo L, Xiao X, Jia X, Kuang Z. Screening for CRX gene mutations in Chinese patients with Leber congenital amaurosis and mutational phenotype. Ophthalmic Genet 2001; 22:89-96. [PMID: 11449318 DOI: 10.1076/opge.22.2.89.2227] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
PURPOSE To screen for possible disease-causing mutations in the CRX gene in Chinese patients with Leber congenital amaurosis (LCA) and to enrich the understanding of its mutational phenotype. METHODS Genomic DNA was collected from 27 patients with LCA. The coding sequences of the CRX gene were analyzed using the PCR-heteroduplex-SSCP method. Mutations were confirmed by DNA sequencing. RESULTS We identified two heterozygous variations in the CRX gene in two patients with LCA. One was a deletion (GCC-->-CC, A181D1bp) leading to a frameshift and protein truncation. This mutation was present in a patient with LCA, but not in his healthy parents. The ocular manifestations of this A181Delta1bp mutation are described. An intronic variation (IVS1-13G-->C) was found in a patient with LCA as well as in his healthy father. CONCLUSION A heterozygous A181D1bp mutation in the CRX gene caused an LCA phenotype in a Chinese patient.
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Affiliation(s)
- Q Zhang
- Ocular Genetics and Molecular Biology, Zhongshan Ophthalmic Center, Sun Yat-sen University of Medical Sciences, Guangzhou, China.
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Shen H, Zhang Q, Kuang Z, Xiao X, Li R. [Cloning the differentially expressed genes in the retina of rds mouse during the development of retinitis pigmentosa]. Zhonghua Yi Xue Yi Chuan Xue Za Zhi 2001; 18:114-7. [PMID: 11295129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
Abstract
OBJECTIVE To clone the differentially expressed genes in the retina of rds mouse (the animal model of congenital retinitis pigmentosa) during the disease development. METHODS The retinal mRNA of rds mouse during the development of retinitis pigmentosa was analyzed by the mRNA differential display. The differentially expressed mRNA fragments were cloned and sequenced. RESULTS There was obvious difference of gene expression between rds mouse and the control during the development of retinitis pigmentosa. Five differentially expressed bands were cloned and sequenced. One of those had 86% identity (132/154) with the sequence of the human cDNA DKFZp434D1227 from adult testis in GenBank, which was submitted lately (15-Oct-1999) and without much information. The other had lower identity with the sequences in GenBank. A highly expressed clone in the rds mouse on postnatal day 25 had the same length as another clone in the normal on postnatal day 37, which was not expressed in the rds mouse on day 37. The sequences of the two clones were identical in all but two base pairs. CONCLUSION These results indicate that there are a lot of novel differentially expressed genes in the chronic processing diseases, such as retinitis pigmentosa.
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Affiliation(s)
- H Shen
- Zhongshan Ophthalmic Center, Sun Yat-Sen University of Medical Sciences, Guangzhou, Guangdong 510060 P. R. China.
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Zhang J, Kuang Z. [Changes in blood constitutive equation parameters during shock in rabbits]. Sheng Wu Yi Xue Gong Cheng Xue Za Zhi 1998; 15:356-9. [PMID: 12552779] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/28/2023]
Abstract
Based on the method which can more precisely obtain the constitutive parameters, we studied the changes of hemorphelogical characteristics of rabbits during shock and the effect of MN9200, a king of calcium channel anatogist injected into the veins of the rabbits. The results showed that shock induced a significant change in hemorheological index and NM9202 improved the condition.
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Affiliation(s)
- J Zhang
- Dept. of Physics, Fourth Military Medical University, Xi'an 710032
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14
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Liao D, Han H, Kuang Z. [Finite element analysis of human tibia in vitro]. Sheng Wu Yi Xue Gong Cheng Xue Za Zhi 1998; 15:53-7. [PMID: 12549355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/28/2023]
Abstract
This investigation was aimed at the fatigue fracture of tibia that often occurs in soldiers, as well as in dancers and athletes. The data of ground reaction force(GRF) of soldiers were measured using a force platform in three common gaits: marching, parading and running. The stress distribution in tibia under these GRFs were analyzed with a FE model. The results showed that the smallest GRF(744.8N) is in quick marching, the next (1156.4N) in parading and the largest (1391.6N) in running. The stress distribution under GRF was mot uniform in the tibia. The maximum stresses occurred at a site 1/3 tibia length below the knee where tibia fracture is often seen clinically. The maximum stresses were 110 MPa and 115 MPa in parading and running respectively. This means that the tibial tractures in soldiers are mostly associated with stress, i.e. the greater the stress is, the higher the incidence of stress fracture comes about.
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Affiliation(s)
- D Liao
- Department of Engneering Mechanics, Xi'an Jiaotong University, Xi'an 710049
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15
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Kuang Z, Zhuang Y. A study on the stage of contraction in Chinese family life cycle. Chin J Popul Sci 1992; 4:127-37. [PMID: 12317918] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/19/2023]
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