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Capoferri A, Wiegand A, Hong F, Shao W, Sobolewski M, Kearney M, Hoh R, Deeks S, Coffin J, Mellors J. OP 1.3 – 00017 The fraction of cells with unspliced HIV RNA is not associated with plasma viremia. J Virus Erad 2022. [DOI: 10.1016/j.jve.2022.100098] [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: 12/24/2022] Open
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Sornasse T, Cai F, Hong F, Anyanwu S, Song IH, Bukhari M. POS0541 PREDICTORS OF REMISSION IN RHEUMATOID ARTHRITIS PATIENTS TREATED WITH UPADACITINIB OR ADALIMUMAB IN THE SELECT-COMPARE PHASE 3 STUDY: CLINICAL STATUS AT WEEK 12, BUT NOT STANDARD LABORATORY MEASURES, PROVIDES THE BEST CURRENT PREDICTOR OF REMISSION AT WEEK 26. Ann Rheum Dis 2022. [DOI: 10.1136/annrheumdis-2022-eular.2544] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
BackgroundUpadacitinib (UPA, 15 mg QD), an oral JAK1 selective inhibitor, showed greater efficacy compared to adalimumab (ADA, 40 mg EOW) at week 12 in patients with active rheumatoid arthritis (RA) on background methotrexate (MTX) in the SELECT-COMPARE phase 3 study1. Treatment with UPA compared to ADA resulted in a larger proportion of patients reaching CDAI Remission (REM) at week 26 (23% vs. 14%, p-value ≤ 0.001). Because remission is the goal in managing RA, it is of clinical relevance to identify early during the treatment course who might be able to achieve this state. It has been reported that early response to therapy with UPA was associated with achieving CDAI REM at week 262. In parallel, it has been reported that reduction in monocyte can predict DAS28-ESR REM in RA patients treated with anti-TNF therapy3. However, the relative predictive values of clinical and standard laboratory measures have not been compared side-by-side.ObjectivesTo determine post-hoc the relative predictive values of selected clinical and standard laboratory measures collected at week 12 for identifying RA patients who will be in CDAI REM at week 26 upon treatment with UPA or ADA.MethodsClinical (CDAI, SDAI, and DAS28-CRP) and laboratory data (CRP, ESR, CBC with differential, and Lipids) for all available patients enrolled in the SELECT-COMPARE phase 3 study were included in this post-hoc analysis (UPA: n =623 [CDAI REM at wk26 = 23.8%]; ADA: n = 316 [CDAI REM at wk 26 = 14.2%]). Patients who switched treatment between weeks 14 and 22 due to not reaching at least 20% improvement in tender and swollen joints were classified as non-responders for CDAI REM at week 26. The predictive value of clinical and laboratory endpoints recorded at week 12 for determining CDAI REM status at week 26 was assessed by univariate logistic regression. We report the performance of each model as ROC AUC with a cutoff of 0.75 for meaningful predictive value.ResultsFor both patients treated with UPA and those treated with ADA, clinical disease activity status measures (CDAI, SDAI, and DAS28-CRP) and relative change in disease activity measures (Percent Change [PCHG] in CDAI, PCHG in DAS28-CRP, and PCHG in SDAI) at week 12 resulted in the highest predictive performance for determining CDAI REM status at week 26 (Figure 1). In contrast, none of the selected standard laboratory measures (CRP, ESR, CBC with differential, and Lipids) reached a meaningful predictive value (ROC AUC < 0.75). Of note, cell numbers and changes in cell numbers (including Neutrophils Lymphocytes, Basophils, Eosinophils, and Monocytes) at week 12 had no meaningful predictive value for determining CDAI REM at week 26.Figure 1.Univariate Logistic Models to Predict CDAI REM at Week 26 in Active RA Patients who had an Inadequate Response to MTX: ROC Analysis AUC.Legend: All evaluated parameters were recorded at Week 12; CHG = Change from Baseline to Week 12; PCHG = Percent Change from Baseline to Week 12ConclusionThis analysis suggests that standard laboratory measures (CRP, ESR, CBC with differential, and Cholesterol) at week 12 do not represent useful predictors for REM at week 26 in csDMARD-IR RA patients. In particular, blood cell numbers and the changes in these measures at week 12 do not provide additional predictive value in our analyses, contrasting with the results from Amarnani and colleagues3. Hence, clinical disease activity levels and changes in these measures at week 12 remain adequate predictors of CDAI REM at week 26. Still, the absolute predictive performance of clinical measures remains suboptimal, highlighting the need to dedicate continued efforts to identify and validate improved predictors of long-term REM in RA.References[1]Fleischmann, R. et al. Arth Rheumatol71, 1788-1800 (2019).[2]Kavanaugh, A. et al. J Clin Rheumatol27, S81-S81 (2021).[3]Amarnani, R. et al. Ann Rheum Dis80, 448-449 (2021).AcknowledgementsAbbVie, Inc was the study sponsor, contributed to the study design, data collection, analysis & interpretation, and writing, reviewing, and approval of the final version.Disclosure of InterestsThierry Sornasse Shareholder of: AbbVie, Employee of: AbbVie, Fang Cai Shareholder of: AbbVie, Employee of: AbbVie, Feng Hong Shareholder of: AbbVie, Employee of: AbbVie, Samuel Anyanwu Shareholder of: AbbVie, Employee of: AbbVie, In-Ho Song Shareholder of: AbbVie, Employee of: AbbVie, Marwan Bukhari Speakers bureau: Bristol-Myers Squib, UCB celltech, Roche/Chugai, Pfizer, Abbvie, Merck, Mennarini, Sanofi-aventis, Eli-Lilly, Janssen, Amgen, Novartis and Gilead, Paid instructor for: honoraria from educational groups revalidaid and TREG consultants.
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Zhang X, Hong F, Liu L, Nie F, Du L, Guan H, Wang Z, Zeng Q, Yang J, Wang J, Li X, Zhang J, Luo P. Lipid accumulation product is a reliable indicator for identifying metabolic syndrome: the China Multi-Ethnic Cohort (CMEC) Study. QJM 2022; 115:140-147. [PMID: 33367838 DOI: 10.1093/qjmed/hcaa325] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Revised: 11/13/2020] [Indexed: 12/30/2022] Open
Abstract
BACKGROUND Previous studies have shown that lipid accumulation product (LAP) was associated with the risk of cardiometabolic disease. It is not clear whether LAP could be used as a marker to identify metabolic syndrome (MetS) among Chinese ethnic groups. AIM To assess the reliability of LAP as a maker to identify MetS among Dong adults. DESIGN Population-based cross-sectional study. METHOD We included 6494 Dong individuals (1403 patients) aged 30-79 years from southwest China. MetS was established by Chinese Diabetes Society. Logistic regression model was utilized to calculate odds ratios (ORs) and 95% confidence intervals (CIs). Receiver operating characteristic (ROC) curve was utilized to calculate area under the ROC curve (AUC) and 95% CIs to obtain the identification ability for MetS. RESULTS The risk of MetS was increased with per 5 units increase of LAP (OR 1.37 [95% CI, 1.34-1.39]). Similar results were found in subgroup analyses and sensitivity analyses. Clustered metabolic risk associated with per 5 units increase of LAP was observed for people with 1 (OR 1.59 [95% CI, 1.53-1.65]), 2 (2.15 [2.06-2.24]), 3 (2.59 [2.48-2.71]), 4 (2.81 [2.69-2.95]) and 5 (3.03 [2.87-3.21]) MetS components. LAP presented higher AUC (0.915 [95% CI, 0.907-0.923]) than other included obesity indices (P < 0.05). CONCLUSION These data support evidence that LAP was related to the risk of MetS, had a high AUC and could be a reliable index for identifying MetS patients among Dong adults in Chinese.
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Affiliation(s)
- X Zhang
- School of Public Health, Guizhou Medical University, Dongqing Road, Guiyang, 550025, People's Republic of China
- School of Public Health, the Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Dongqing Road, Guiyang 550025, People's Republic of China
| | - F Hong
- School of Public Health, the Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Dongqing Road, Guiyang 550025, People's Republic of China
| | - L Liu
- School of Public Health, Guizhou Medical University, Dongqing Road, Guiyang, 550025, People's Republic of China
- School of Public Health, the Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Dongqing Road, Guiyang 550025, People's Republic of China
| | - F Nie
- School of Public Health, Guizhou Medical University, Dongqing Road, Guiyang, 550025, People's Republic of China
- School of Public Health, the Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Dongqing Road, Guiyang 550025, People's Republic of China
| | - L Du
- School of Public Health, Guizhou Medical University, Dongqing Road, Guiyang, 550025, People's Republic of China
- School of Public Health, the Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Dongqing Road, Guiyang 550025, People's Republic of China
| | - H Guan
- School of Public Health, the Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Dongqing Road, Guiyang 550025, People's Republic of China
| | - Z Wang
- School of Public Health, the Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Dongqing Road, Guiyang 550025, People's Republic of China
| | - Q Zeng
- School of Public Health, the Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Dongqing Road, Guiyang 550025, People's Republic of China
| | - J Yang
- School of Public Health, the Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Dongqing Road, Guiyang 550025, People's Republic of China
| | - J Wang
- School of Public Health, the Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Dongqing Road, Guiyang 550025, People's Republic of China
| | - X Li
- School of Public Health, the Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Dongqing Road, Guiyang 550025, People's Republic of China
| | - J Zhang
- School of Public Health, Guizhou Medical University, Dongqing Road, Guiyang, 550025, People's Republic of China
- Health Bureau of Yunyan District, Beijing East Road, Guiyang 550003, People's Republic of China
| | - P Luo
- School of Public Health, Guizhou Medical University, Dongqing Road, Guiyang, 550025, People's Republic of China
- School of Public Health, the Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Dongqing Road, Guiyang 550025, People's Republic of China
- State Key Laboratory of Function and Application of Medicinal Plants, Guizhou Medical University, Dongqing Road, Guiyang 550014, People's Republic of China
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Liu L, Han M, Qie R, Li Q, Zhang X, Zhang J, Zhan S, Zhang L, Xu Z, Zhang C, Hong F. A dose-response meta-analysis to evaluate the relationship between high-density lipoprotein cholesterol and all-cause and cardiovascular disease mortality. J Endocrinol Invest 2022; 45:551-562. [PMID: 34676492 DOI: 10.1007/s40618-021-01690-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [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: 06/02/2021] [Accepted: 10/07/2021] [Indexed: 10/20/2022]
Abstract
PURPOSE Previous studies have not fully described the relationship between high-density lipoprotein cholesterol (HDL-C) and death risks from all cause and cardiovascular disease (CVD). This study quantitatively evaluates HDL-C-mortality associations. METHODS Embase and PubMed databases were searched for relevant articles published up to 1 June 2019. Random-effects models were used to pool relative risks (RRs) and 95% confidence intervals (CIs). We used restricted cubic splines to model the dose-response association. RESULTS We identified 32 prospective cohort studies including 369,904 participants and 33,473 total deaths (9426 CVD deaths). Compared to the lowest HDL-C levels, all cause and CVD mortality risks were reduced by 18% (RR 0.82; 95% CI, 0.73-0.93) and 36% (0.64, 0.46-0.89), respectively, for the highest HDL-C levels. All cause and CVD mortality risks were reduced by 15% (0.85, 0.79-0.92) and 23% (0.77, 0.69-0.87), respectively, with each 1 mmol/L increment of HDL-C. We found evidence of nonlinear and negative dose-response associations of HDL-C with all cause and CVD mortality (Pnonlinearity < 0.001), and the lowest death risks from all cause and CVD were observed at approximately 1.34 and 1.55 mmol/L, respectively. CONCLUSION HDL-C is inversely associated with all cause and CVD mortality risks under approximately 2.05 and 2.33 mmol/L, respectively. Optimal doses require investigation via clinical practice or high-quality research.
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Affiliation(s)
- L Liu
- School of Public Health, the Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Dongqing Road, Guian New Area, Guiyang, 550025, Guizhou, People's Republic of China
| | - M Han
- College of Public Health, Zhengzhou University, Zhengzhou, 450000, People's Republic of China
| | - R Qie
- College of Public Health, Zhengzhou University, Zhengzhou, 450000, People's Republic of China
| | - Q Li
- College of Public Health, Zhengzhou University, Zhengzhou, 450000, People's Republic of China
| | - X Zhang
- School of Public Health, the Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Dongqing Road, Guian New Area, Guiyang, 550025, Guizhou, People's Republic of China
- Center for Diseases Control and Prevention of Yunyan District, Guiyang, 550004, People's Republic of China
| | - J Zhang
- School of Public Health, the Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Dongqing Road, Guian New Area, Guiyang, 550025, Guizhou, People's Republic of China
- Guiyang Center for Diseases Control and Prevention, Guiyang, 550001, People's Republic of China
| | - S Zhan
- School of Public Health, the Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Dongqing Road, Guian New Area, Guiyang, 550025, Guizhou, People's Republic of China
- Guizhou Provincial Hospital of Maternal and Child Health Care, Guiyang, 550004, People's Republic of China
| | - L Zhang
- School of Public Health, the Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Dongqing Road, Guian New Area, Guiyang, 550025, Guizhou, People's Republic of China
| | - Z Xu
- School of Public Health, the Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Dongqing Road, Guian New Area, Guiyang, 550025, Guizhou, People's Republic of China
| | - C Zhang
- School of Public Health, the Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Dongqing Road, Guian New Area, Guiyang, 550025, Guizhou, People's Republic of China
| | - F Hong
- School of Public Health, the Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Dongqing Road, Guian New Area, Guiyang, 550025, Guizhou, People's Republic of China.
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Cheng SM, Liu JL, Chen T, Bi YZ, Liu KY, Wang QY, Tang HX, Yang YH, Zhang XB, Hu RR, Liu SQ, Zhang K, Kong LB, Guo DL, Shu ZF, Hong F. [Establishment of human colon cancer transplantation tumor model in normal immune mice]. Zhonghua Zhong Liu Za Zhi 2021; 43:939-943. [PMID: 34530576 DOI: 10.3760/cma.j.cn112152-20190915-00596] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: Establishment of a new model of human primary colon cancer transplantation tumor in normal immune mice and to provide a reliable experimental animal model for studying the pathogenesis of colon cancer under normal immunity. Methods: Human colon cancer cells come from colon cancer patients who underwent surgery in the Affiliated Hospital of Jining Medical College in 2017. The mice in the cell control group were inoculated with phosphate buffered solution (PBS) containing colon cancer cells, the microcarrier control group was inoculated with PBS containing microcarrier 6, and the cell-microcarrier complex group was inoculated with the PBS containing colon cancer cell-microcarrier complex. The cells of each group were inoculated under the skin of the right axilla of mice by subcutaneous injection, and the time, size, tumor formation rate and pathological changes under microscope were recorded. The transplanted tumor tissue was immunohistochemically stained with the EnVisiion two-step method, and the tumor formation rate of the transplanted tumor was judged according to the proportion of positive cells in the visual field. The polymerase chain reaction (PCR) method was used to detect the expression of human-specific Alu sequence in mice tumor tissue. Results: After inoculation with tumor cells, the mice in the cell control group and the microcarrier control group did not die and did not form tumors; the mice in the cell-microcarrier complex group had palpable subcutaneous tumors in the right axillary subcutaneously on the 5th to 7th days after inoculation, and tumor formation rate is 67% (10/15), and the tumor volume can reach about 500 mm(3) 2 to 3 weeks after vaccination. The immunohistochemistry results showed that CK20, CDX-2 and carcinoembryonic antigen were all positively expressed. The PCR results showed that the expression of human-specific Alu sequence can be detected in the transplanted tumor tissue of tumor-bearing mice. Conclusion: Human primary colon cancer cells used microcarrier 6 as a carrier to form tumors in normal immunized mice, and successfully established a new model of human colon cancer transplantation tumor in normal immune mice.
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Affiliation(s)
- S M Cheng
- Jining Medical University Clinical Medical College, Jining 272000, China
| | - J L Liu
- The First Affiliated Hospital of Hebei North University, Cancer Institute, Zhangjiakou 075000, China
| | - T Chen
- Gastrointestinal Surgery, the Third Hospital of Jilin University, Changchun 130000, China
| | - Y Z Bi
- Department of Gastroenterology, Beijing You'an Hospital, Capital Medical University, Beijing 100069, China
| | - K Y Liu
- Jining Medical University Clinical Medical College, Jining 272000, China
| | - Q Y Wang
- Department of Pathology, Affiliated Hospital of Jining Medical College, Jining 272000, China
| | - H X Tang
- Jining Medical University Clinical Medical College, Jining 272000, China
| | - Y H Yang
- Central Laboratory, Affiliated Hospital of Jining Medical College, Jining 272000, China
| | - X B Zhang
- Central Laboratory, Affiliated Hospital of Jining Medical College, Jining 272000, China
| | - R R Hu
- Department of Gastroenterology, Affiliated Hospital of Jining Medical College, Jining 272000, China
| | - S Q Liu
- Department of Gastroenterology, Affiliated Hospital of Jining Medical College, Jining 272000, China
| | - K Zhang
- Department of Gastrointestinal Surgery, the Second Hospital of Jilin University, Changchun 130000, China
| | - L B Kong
- Jining Medical University Clinical Medical College, Jining 272000, China
| | - D L Guo
- Jining Medical University Clinical Medical College, Jining 272000, China
| | - Z F Shu
- Shanghai Meifeng Biotechnology Co., Ltd, Shanghai 201203, China
| | - F Hong
- Central Laboratory, Affiliated Hospital of Jining Medical College, Jining 272000, China
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Cao Y, Hong F, Conlon DM, Sidur L, Smith KM, Fang Y, Cuff CA, Kaymakcalan Z, Ruzek MC. Potential predictive biomarkers of adalimumab response in patients with hidradenitis suppurativa. Br J Dermatol 2021; 185:804-814. [PMID: 33811319 DOI: 10.1111/bjd.20097] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/31/2021] [Indexed: 12/15/2022]
Abstract
BACKGROUND Adalimumab provides significant efficacy for patients with hidradenitis suppurativa (HS), which was demonstrated by at least 50% of patients achieving a clinical response by week 12 that was maintained through to week 168 in the PIONEER trials. OBJECTIVES To identify whether there are biomarkers that could predict adalimumab response, as well as markers that differentially respond to adalimumab in patients with HS. METHODS Baseline and week-12 plasma samples from the PIONEER studies were used to assess the levels of circulating proteins by multiplex and enzyme-linked immunosorbent assays. RESULTS Analyses revealed significantly higher high-sensitivity C-reactive protein (hs-CRP) and chemokine (C-C motif) ligand (CCL) 16 (HCC-4) levels in nonresponders at baseline and identified a multivariate response signature of calprotectin, fractalkine and HCC-4, reaching an 86% predictive accuracy rate for adalimumab response. Additionally, post-treatment reduction of plasma C-X-C motif chemokine ligand (CXCL)9, CXCL8 (interleukin-8) and CCL19 (macrophage inflammatory protein 3β) were greater in adalimumab super-responders than in nonresponders (P = 0·026, P = 0·044 and P = 0·026, respectively). These cytokines are involved in the recruitment of innate and adaptive inflammatory cells, and/or stimulation of certain inflammatory responses, suggesting that these pathways could be disease drivers in adalimumab nonresponders. CONCLUSIONS These initial results suggest HCC-4, calprotectin and fractalkine could be potential predictive biomarkers of adalimumab response in HS and identified possible tumour necrosis factor-independent disease pathways.
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Affiliation(s)
- Y Cao
- Immunology Discovery, AbbVie Bioresearch Center, Worcester, MA, 01605, USA
| | - F Hong
- Discovery and Early Pipeline Statistics, AbbVie Bioresearch Center, Worcester, MA, 01605, USA
| | - D M Conlon
- Translational Research, AbbVie Bioresearch Center, Worcester, MA, 01605, USA
| | - L Sidur
- Translational Research, AbbVie Bioresearch Center, Worcester, MA, 01605, USA
| | - K M Smith
- Immunology Systems Computational Biology, AbbVie Cambridge Research Center, Cambridge, MA, USA
| | - Y Fang
- DMPK-BA, AbbVie Redwood City, CA, USA
| | - C A Cuff
- Translational Research, AbbVie Bioresearch Center, Worcester, MA, 01605, USA
| | - Z Kaymakcalan
- Immunology Discovery, AbbVie Bioresearch Center, Worcester, MA, 01605, USA
| | - M C Ruzek
- Translational Research, AbbVie Bioresearch Center, Worcester, MA, 01605, USA
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Hong F, Salmon S, Ong XY, Liew K, Koh Y, Young A, Ang B, Foo ML, Lee LC, Ling ML, Marimuthu K, Pada S, Poh BF, Thoon KC, Fisher D. Routine antiseptic baths and MRSA decolonization: diverse approaches across Singapore's acute-care hospitals. J Hosp Infect 2021; 112:87-91. [PMID: 33812940 DOI: 10.1016/j.jhin.2021.03.025] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Revised: 03/29/2021] [Accepted: 03/29/2021] [Indexed: 11/28/2022]
Abstract
To determine the variation in practices on meticillin-resistant Staphylococcus aureus (MRSA) surveillance and management of MRSA-colonized patients amongst 17 acute healthcare facilities in Singapore, the Ministry of Health convened a sharing session with Infection Prevention and Control Leads. All hospitals practised close to universal MRSA entry swabbing in keeping with national policy. There were, however, major variations in the response to both positive and negative surveillance swabs across facilities including the role of routine antiseptic bathing and MRSA decolonization. Most undertaking decolonization considered its role to be in 'bioburden reduction' rather than longer-term clearance.
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Affiliation(s)
- F Hong
- Ministry of Health, Singapore
| | - S Salmon
- University of New South Wales, School of Population Health, UNSW Medicine, Australia; Indo-Pacific Centre for Health Security, Department of Foreign Affairs and Trade, Australia
| | - X Y Ong
- Ministry of Health, Singapore
| | - K Liew
- Ministry of Health, Singapore
| | - Y Koh
- Ministry of Health, Singapore
| | - A Young
- Ministry of Health, Singapore
| | - B Ang
- Infectious Diseases, Tan Tock Seng Hospital, Singapore; Infection Prevention and Control, Tan Tock Seng Hospital, Singapore
| | - M L Foo
- Infection Control, Khoo Teck Puat Hospital, Singapore
| | - L C Lee
- Infection Prevention and Epidemiology, Singapore General Hospital, Singapore
| | - M L Ling
- Infection Prevention and Epidemiology, Singapore General Hospital, Singapore
| | - K Marimuthu
- Infectious Diseases, National Centre of Infectious Diseases, Singapore
| | - S Pada
- Infectious Diseases, Ng Teng Fong General Hospital, Singapore
| | - B F Poh
- Infection Prevention and Control, Tan Tock Seng Hospital, Singapore
| | - K C Thoon
- Infectious Diseases, KK Women's and Children's Hospital, Singapore
| | - D Fisher
- Division of Infectious Diseases, National University Hospital, Singapore; Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore.
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Abstract
The pathogenesis of hepatic encephalopathy (HE) has been generally linked to blood ammonia, gamma-aminobutyric acid and serotonin. However, the exact mechanism remains unclear. In the present study, we aimed to explore the role of hippocampal dopamine (DA) and its receptors in the pathogenesis of HE through the use of behavioral testing, western blotting, and immunofluorescence staining in normal rats, HE model rats and rats treated with the DA precursor-levodopa (L-DOPA). HE model rats manifested fibrotic livers and showed serious behavioral disorders. They also had significantly lower hippocampal DA content and increased expression of both D1 and D2 receptors relative to normal rats. After treatment with L-DOPA, the HE model rats showed normal behavior and expression of D1 returned to normal levels. Furthermore, pretreatment with the D1 antagonist SCH23390 blocked the therapeutic effect of L-DOPA on behavior in HE model rats. Taken together, these results clarify that the decrease in hippocampal DA plays a role in the pathogenesis of HE and that this effect is mediated by D1. These findings provide new evidence for the pathogenesis of HE.
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Affiliation(s)
- B Chen
- School of Preclinical Medicine, Wannan Medical College, Wuhu, China.
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Yu ZN, Huang XW, Hong F, Zhang T, Yang JB. [Baraitser-Winter syndrome caused by ACTB gene variation]. Zhonghua Er Ke Za Zhi 2020; 58:333-335. [PMID: 32234145 DOI: 10.3760/cma.j.cn112140-20190825-00535] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Z N Yu
- Department of Genetics and Metabolism, Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou 310052, China
| | - X W Huang
- Department of Genetics and Metabolism, Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou 310052, China
| | - F Hong
- Department of Genetics and Metabolism, Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou 310052, China
| | - T Zhang
- Department of Genetics and Metabolism, Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou 310052, China
| | - J B Yang
- Department of Genetics and Metabolism, Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou 310052, China
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Zhang Z, Liu YY, Liu Y, Li Q, Liang TT, Hong F, Feng L, Sun Y. [The effect of peroxiredoxin 2 on transforming growth factor-β1-induced fibroblast proliferation and collagen synthesis]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2020; 38:7-12. [PMID: 32062888 DOI: 10.3760/cma.j.issn.1001-9391.2020.01.002] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the effect of peroxiredoxin 2 (Prx2) overexpression on fibroblast proliferation and collagen synthesis induced by transforming growth factor-β1 (TGF-β1) . Methods: Fibroblasts were randomly divided into control group (DMEM medium) , TGF-β1 group (5 μg/L TGF-β1) , negative control group (treated with 5 μg/L TGF-β1 and transfected with empty lentiviral vector) , and Prx2 group (treated with 5 μg/L TGF-β1 and transfected with Prx2 overexpression lentiviral vector) . MTT assay was used to measure cell proliferation, immunofluorescence assay was used to measure the expression of 8-OHdG, and Western blot was used to measure the expression of p-JNK, p-P38, collagen type I, collagen type III, and Prx2. SPSS 18.0 was used for statistical analysis. The continuous data were expressed as mean±standard deviation; an analysis of variance was used for comparison between groups, and the least significant difference t-test was used for further comparison between two groups. Results: Lentiviral transfection was performed successfully, and the Prx2 group had a significant increase in the protein expression of Prx2 (P<0.05) . Compared with the control group, the TGF-β1 group had a significant increase in the proliferation ability (P<0.05) , and compared with the TGF-β1 group, the Prx2 group had a significant reduction in the proliferation ability (P<0.05) . Compared with the control group, the TGF-β1 group had significant increases in the expression of 8-OHdG, p-JNK, p-P38, collagen type I, and collagen type III (P<0.05) ; compared with the TGF-β1 group, the negative control group had no significant changes in the expression of 8-OHdG, p-JNK, p-P38, collagen type I, and collagen type III (P>0.05) , while the Prx2 group had significant reductions in the above parameters (P<0.05) . Conclusion: Prx2 overexpression inhibits fibroblast proliferation and collagen synthesis induced by TGF-β1 through inhibiting reactive oxygen species and activating the JNK and P38 pathways.
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Affiliation(s)
- Z Zhang
- Department of Pathology, School of Basic Medical Science, North China University of Science and Technology, Tangshan 063210, China; Department of Respiratory Medicine, Tangshan Works Hospital Affiliated to North China University of Science and Technology, Tangshan 063000, China
| | - Y Y Liu
- Department of Respiratory Medicine, Tangshan Works Hospital Affiliated to North China University of Science and Technology, Tangshan 063000, China
| | - Y Liu
- Department of Pathology, School of Basic Medical Science, North China University of Science and Technology, Tangshan 063210, China
| | - Q Li
- Department of Pathology, School of Basic Medical Science, North China University of Science and Technology, Tangshan 063210, China
| | - T T Liang
- Department of Pathology, School of Basic Medical Science, North China University of Science and Technology, Tangshan 063210, China
| | - F Hong
- Department of Pathology, School of Basic Medical Science, North China University of Science and Technology, Tangshan 063210, China
| | - L Feng
- Department of Pathology, School of Basic Medical Science, North China University of Science and Technology, Tangshan 063210, China
| | - Y Sun
- Department of Pathology, School of Basic Medical Science, North China University of Science and Technology, Tangshan 063210, China; Hebei Chronic Disease Key Laboratory Disease, School of Basic Medical Science, North China University of Science and Technology, Tangshan 063210, China
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11
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Hong F, Song L, Zhu YY, Ji JH, Zhu MJ, Xu M. Cardiac troponin I, myoglobin, and creatine kinase-Mb as new biomarkers for diagnosis of neonatal hypoxic ischemic encephalopathy. J BIOL REG HOMEOS AG 2019; 33:1201-1207. [PMID: 31304730] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Affiliation(s)
- F Hong
- Department of Pediatrics, Affiliated Hospital 2 of Nantong University, Nantong City, Jiangsu Province, China
| | - L Song
- Department of Pediatrics, Affiliated Hospital 2 of Nantong University, Nantong City, Jiangsu Province, China
| | - Y Y Zhu
- Department of Pediatrics, Affiliated Hospital 2 of Nantong University, Nantong City, Jiangsu Province, China
| | - J H Ji
- Department of Pediatrics, Affiliated Hospital 2 of Nantong University, Nantong City, Jiangsu Province, China
| | - M J Zhu
- Department of Pediatrics, Affiliated Hospital 2 of Nantong University, Nantong City, Jiangsu Province, China
| | - M Xu
- Department of Pediatrics, Affiliated Hospital 2 of Nantong University, Nantong City, Jiangsu Province, China
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12
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Diefenbach C, Hong F, Ambinder R, Cohen J, Robertson M, David K, Advani R, Fenske T, Barta S, Palmisano N, Svoboda J, Morgan D, Karmali R, Kahl B, Ansell S. EXTENDED FOLLOW-UP OF A PHASE I TRIAL OF IPILIMUMAB, NIVOLUMAB AND BRENTUXIMAB VEDOTIN IN RELAPSED HODGKIN LYMPHOMA: A TRIAL OF THE ECOG-ACRIN RESEARCH GROUP (E4412). Hematol Oncol 2019. [DOI: 10.1002/hon.83_2629] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- C.S. Diefenbach
- Hematology-Oncology; Perlmutter Cancer Center at NYU Langone Health; New York United States
| | - F. Hong
- ECOG-ACRIN Biostatistics Center; Dana Farber Cancer Institute; Boston United States
| | - R. Ambinder
- Sidney Kimmel Cancer Center; Johns Hopkins University; Baltimore MD United States
| | - J. Cohen
- Winship Cancer Institute; Emory University; Atlanta United States
| | - M. Robertson
- Hematology-Oncology; Indiana Unversity School of Medicine; Indianapolis United States
| | - K. David
- Hematology-Oncology; Rutgers Cancer Institute of New Jersey; New Brunswick United States
| | - R. Advani
- Oncology; Stanford Cancer Institute; San Francisco United States
| | - T. Fenske
- Hematology-Oncology; Froedtert and the Medical College of Wisconsin; Milwaukee United States
| | - S. Barta
- Abramson Cancer Center; University of Pennsylvania; Philadelphia United States
| | - N. Palmisano
- Hematology-Oncology; Thomas Jefferson University Hospital; Philadelphia United States
| | - J. Svoboda
- Abramson Cancer Center; University of Pennsylvania; Philadelphia United States
| | - D. Morgan
- Hematology-Oncology; Vanderbilt Ingram Henry Cancer Center; Nashville United States
| | - R. Karmali
- Feinberg School of Medicine; Northwestern University; Chicago United States
| | - B. Kahl
- Oncology; Washington University School of Medicine; St. Louis United States
| | - S. Ansell
- Hematology-Oncology; Mayo Clinic; Rochester United States
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Nowakowski G, Hong F, Scott D, Macon R, King R, Habermann T, Wagner-Johnston N, Casulo C, Wade J, Nagargoje G, Reynolds C, Cohen J, Khan N, Amengual J, Richards K, Little R, Leonard J, Friedberg J, Kostakoglu L, Kahl B, Witzig T. ADDITION OF LENALIDOMIDE TO R-CHOP (R2CHOP) IMPROVES OUTCOMES IN NEWLY DIAGNOSED DIFFUSE LARGE B-CELL LYMPHOMA (DLBCL): FIRST REPORT OF ECOG-ACRIN1412 A RANDOMIZED PHASE 2 US INTERGROUP STUDY OF R2CHOP VS R-CHOP. Hematol Oncol 2019. [DOI: 10.1002/hon.6_2629] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
| | - F. Hong
- Department of Biostatistics; Dana Farber Cancer Institute; Boston MA USA
| | - D.W. Scott
- British Columbia Cancer Center for Lymphoid Cancer; Vancouver Canada
| | - R. Macon
- Division of Hematopathology; Mayo Clinic Rochester MN; USA
| | - R.L. King
- Division of Hematopathology; Mayo Clinic Rochester MN; USA
| | | | | | | | | | | | | | - J.B. Cohen
- Emory University-Winship Cancer Institute; Atlanta GA USA
| | - N. Khan
- Fox Case Cancer Center; Philadelphia PA USA
| | - J. Amengual
- Columbia University Medical Center; New York NY USA
| | | | | | | | | | - L. Kostakoglu
- Mount Sinai Hospital, New York, NY, USA
; Department of Hematology; Washington University School of Medicine; St. Louis MO USA
| | - B.S. Kahl
- British Columbia Cancer Center for Lymphoid Cancer; Vancouver Canada
| | - T.E. Witzig
- Division of Hematology; Mayo Clinic; Rochester MN USA
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Jin XY, Zhao LJ, Luo DH, Liu L, Dai YD, Hu XX, Wang YY, Lin X, Hong F, Li TC, Zhang SY. Pinopode score around the time of implantation is predictive of successful implantation following frozen embryo transfer in hormone replacement cycles. Hum Reprod 2018; 32:2394-2403. [PMID: 29040606 DOI: 10.1093/humrep/dex312] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2016] [Accepted: 09/27/2017] [Indexed: 01/05/2023] Open
Abstract
STUDY QUESTION Is pinopode measurement of any prognostic value? SUMMARY ANSWER Pinopode expression was significantly associated with the occurrence of pregnancy after frozen embryo transfer. WHAT IS KNOWN ALREADY Pinopodes are expressed in the endometrium during the implantation period. Pinopode measurement has been proposed as a marker of endometrial receptivity. STUDY DESIGN, SIZE, DURATION A prospective cohort study was conducted at the Center of Reproductive Medicine, Sir Run Run Shaw Hospital, between 2014 and 2016, recruiting 172 women with infertility and undergoing frozen embryo transfer following IVF treatment. Among 172 participants, 46 women took part in the first study to quantify the daily changing pattern of pinopodes 3-7 days after the initiation of progesterone therapy in the hormone replacement cycles and the remaining 126 women with infertility participated in a study to examine the relationship between pinopode count and pregnancy outcome following frozen embryo transfer in hormone replacement cycles. PARTICIPANTS/MATERIALS, SETTING, METHODS The mean age of participants was 29 years old. All participants received an artificial hormone replacement protocol capable of supporting successful implantation. Endometrial biopsies from 46 women were obtained 3, 4, 5, 6 and 7 days after the initiation of progesterone therapy (P + 3, n = 6; P + 4, n = 6; P + 5, n = 11; P + 6, n = 13; P + 7, n = 10, respectively). Another 126 endometrial biopsies were obtained precisely 6 days after the initiation of progesterone. Scanning electron microscopy was used to capture the pinopode images, followed by use of the image J program to quantify the count and subtype of the pinopodes. MAIN RESULTS AND THE ROLE OF CHANCE We found that at least 60 microscopic fields were necessary to achieve a reproducible result. An intra-observer variability study showed good agreement between two measurements regarding the developing pinopode (DP) subtype (r = 0.95) and the fully developed pinopode (FDP) subtype (r = 0.86) but not for the regressing (RP) pinopode subtype (r = 0.39). The proportion of DP/total pinopodes (TP) declined rapidly form day P + 4 to a minimum on day P + 6. The percentage of FDP/TP increased rapidly from day P + 4 to reach a peak on day P + 6. On the other hand, the percentage of RP/TP reached a peak on day P + 7. Participants who conceived had a significantly (P = 0.011) higher percentage of FDP/TP on day P + 6 and significantly (P = 0.005) lower percentage of DP/TP on the same day compared with participants who did not become pregnant. Using a scoring system incorporating the percentages of DP and FDP, it was found that the pregnancy rate and the embryo implantation rate of women with a high pinopode score (82.3%; 63.0%) was significantly (P = 0.001; P = 0.046) higher than that of women with a low pinopode score (53.3%; 46.7%), respectively. There remains a possibility that the observations could have arisen due to chance. LIMITATIONS, REASONS FOR CAUTION This study examined pinopode count and subtype in the HRT cycles, and it is uncertain whether the same observations apply to in natural cycles. WIDER IMPLICATIONS OF THE FNDINGS Pinopodes have been questioned as a potential marker of endometrial receptivity for many years. Our results suggested that pinopode measurement may be of value in predicting pregnancy. STUDY FUNDING/COMPETING INTEREST(S) The study was supported by the grants from the general project of medicine and health in Zhejiang Province of China (2015KYA142; 2018KY106), the Key Research and Development Program of Zhejiang Province (2017C03022) and the National Natural Science Foundation of China (81701514).The funders had no role in the study design, data collection and analysis, decision to publish or preparation of the manuscript. We have no competing interests to declare. TRIAL REGISTRATION NUMBER ISRCTN26300668.
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Affiliation(s)
- X Y Jin
- Department of Obstetrics and Gynecology, Assisted Reproduction Unit, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Key Laboratory of Reproductive Dysfunction Management of Zhejiang Province, 3# Qingchun East Road, Hangzhou 310016, PR China
| | - L J Zhao
- Department of Obstetrics and Gynecology, Assisted Reproduction Unit, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Key Laboratory of Reproductive Dysfunction Management of Zhejiang Province, 3# Qingchun East Road, Hangzhou 310016, PR China
| | - D H Luo
- Department of Obstetrics and Gynecology, Assisted Reproduction Unit, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Key Laboratory of Reproductive Dysfunction Management of Zhejiang Province, 3# Qingchun East Road, Hangzhou 310016, PR China
| | - L Liu
- Department of Obstetrics and Gynecology, Assisted Reproduction Unit, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Key Laboratory of Reproductive Dysfunction Management of Zhejiang Province, 3# Qingchun East Road, Hangzhou 310016, PR China
| | - Y D Dai
- Department of Obstetrics and Gynecology, Assisted Reproduction Unit, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Key Laboratory of Reproductive Dysfunction Management of Zhejiang Province, 3# Qingchun East Road, Hangzhou 310016, PR China
| | - X X Hu
- Department of Obstetrics and Gynecology, Assisted Reproduction Unit, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Key Laboratory of Reproductive Dysfunction Management of Zhejiang Province, 3# Qingchun East Road, Hangzhou 310016, PR China
| | - Y Y Wang
- Department of Obstetrics and Gynecology, Assisted Reproduction Unit, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Key Laboratory of Reproductive Dysfunction Management of Zhejiang Province, 3# Qingchun East Road, Hangzhou 310016, PR China
| | - X Lin
- Department of Obstetrics and Gynecology, Assisted Reproduction Unit, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Key Laboratory of Reproductive Dysfunction Management of Zhejiang Province, 3# Qingchun East Road, Hangzhou 310016, PR China
| | - F Hong
- Department of Obstetrics and Gynecology, Assisted Reproduction Unit, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Key Laboratory of Reproductive Dysfunction Management of Zhejiang Province, 3# Qingchun East Road, Hangzhou 310016, PR China
| | - T C Li
- Department of Obstetrics & Gynecology, Chinese University of Hong Kong, Shatin, Hong Kong, PR China
| | - S Y Zhang
- Department of Obstetrics and Gynecology, Assisted Reproduction Unit, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Key Laboratory of Reproductive Dysfunction Management of Zhejiang Province, 3# Qingchun East Road, Hangzhou 310016, PR China
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15
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Sun SH, Gao ZD, Zhao F, Zhang WY, Zhao X, Li YY, Li YM, Hong F, He XX, Zhan SY. [Spatial-temporal analysis on pulmonary tuberculosis in Beijing during 2005-2015]. Zhonghua Liu Xing Bing Xue Za Zhi 2018; 39:816-820. [PMID: 29936753 DOI: 10.3760/cma.j.issn.0254-6450.2018.06.023] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To analyze the spatial distribution and identify the high risk areas of pulmonary tuberculosis at the township level in Beijing during 2005-2015. Methods: Data on pulmonary tuberculosis cases was collected from the tuberculosis information management system. Global autocorrelation analysis, local indicators of spatial association and Kulldorff's Scan Statistics were applied to map the spatial distribution and detect the space-time clusters of the pulmonary tuberculosis cases during 2005-2015. Results: Spatial analysis on the incidence of pulmonary tuberculosis at the township level demonstrated that the spatial autocorrelation was positive during the study period. The values of Moran's I ranged from 0.224 3 to 0.291 8 with all the P values less than 0.05. Hotspots were primarily distributed in 8 towns/streets as follows: Junzhuang, Wangping, Yongding and Tanzhesi in Mentougou district, Yancun in Fangshan district, Wangzuo town in Fengtai district, Tianqiao street in Xicheng district and Tianzhu town in Shunyi district. Spatiotemporal clusters across the entire study period were identified by using Kulldorff's spatiotemporal scan statistic. The primary cluster was located in Chaoyang and Shunyi districts, including 17 towns/streets, as follows: Cuigezhuang, Maizidian, Dongfeng, Taiyanggong, Zuojiazhuang, Hepingjie, Xiaoguan, Xiangheyuan, Dongba, Jiangtai, Wangjing, Jinzhan, Jiuxianqiao, Laiguangying, Sunhe towns/streets in Chaoyang district, Houshayu and Tianzhu town in Shunyi district, during January to December 2005. Conclusion: Incidence rates of pulmonary tuberculosis displayed spatial and temporal clusterings at the township level in Beijing during 2005-2015, with high risk areas relatively concentrated in the central and southern parts of Beijing.
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Affiliation(s)
- S H Sun
- The Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing 100191, China;Beijing Research Institute for Tuberculosis Control, Beijing 100035, China
| | - Z D Gao
- Beijing Research Institute for Tuberculosis Control, Beijing 100035, China
| | - F Zhao
- Beijing Research Institute for Tuberculosis Control, Beijing 100035, China;National Center for Tuberculosis Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - W Y Zhang
- Institute of Disease Control and Prevention of the People's Liberation Army, Beijing 100071, China
| | - X Zhao
- Beijing Research Institute for Tuberculosis Control, Beijing 100035, China
| | - Y Y Li
- Beijing Research Institute for Tuberculosis Control, Beijing 100035, China
| | - Y M Li
- Beijing Research Institute for Tuberculosis Control, Beijing 100035, China
| | - F Hong
- Beijing Research Institute for Tuberculosis Control, Beijing 100035, China
| | - X X He
- Beijing Research Institute for Tuberculosis Control, Beijing 100035, China
| | - S Y Zhan
- The Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing 100191, China
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Diefenbach C, Hong F, David K, Cohen J, Roberston M, Advani R, Palmisano N, Ambinder R, Kahl B, Ansell S. SAFETY AND EFFICACY OF COMBINATION OF BRENTUXIMAB VEDOTIN AND NIVOLUMAB IN RELAPSED / REFRACTORY HODGKIN LYMPHOMA: a TRIAL OF THE ECOG-ACRIN CANCER RESEARCH GROUP (E4412). Hematol Oncol 2017. [DOI: 10.1002/hon.2437_72] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- C.S. Diefenbach
- Hematology-Oncology; NYU Perlmutter Cancer Center; New York USA
| | - F. Hong
- Biostatistics; Dana Farber Cancer Institute; Boston USA
| | - K. David
- Hematology-Oncology; Rutgers the Cancer Institute of New Jersey; New Jersey USA
| | - J. Cohen
- Oncology; Emory University; Georgia USA
| | - M. Roberston
- Hematology-Oncology; Indiana University Hospital; Bloomington USA
| | - R. Advani
- Medicine/Oncology; Stanford University Medical Center; Stanford USA
| | - N. Palmisano
- Hematology-Oncology; Penn State Milton S. Hershey Cancer Institute; Pennsylvania USA
| | - R. Ambinder
- Hematologic Malignances; Johns Hopkins Hospital; Baltimore USA
| | - B. Kahl
- Hematology and Oncology; Washington University School of Medicine in Saint Louis; Saint Louis USA
| | - S. Ansell
- Hematology-Oncology; Mayo Clinic; Rochester USA
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Feng XY, Zhang DN, Wang YA, Fan RF, Hong F, Zhang Y, Li Y, Zhu JX. Dopamine enhances duodenal epithelial permeability via the dopamine D 5 receptor in rodent. Acta Physiol (Oxf) 2017; 220:113-123. [PMID: 27652590 DOI: 10.1111/apha.12806] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2016] [Revised: 04/05/2016] [Accepted: 09/16/2016] [Indexed: 12/24/2022]
Abstract
AIM The intestinal barrier is made up of epithelial cells and intercellular junctional complexes to regulate epithelial ion transport and permeability. Dopamine (DA) is able to promote duodenal epithelial ion transport through D1-like receptors, which includes subtypes of D1 (D1 R) and D5 (D5 R), but whether D1-like receptors influence the duodenal permeability is unclear. METHODS FITC-dextran permeability, short-circuit current (ISC ), Western blot, immunohistochemistry and ELISA were used in human D5 R transgenic mice and hyperendogenous enteric DA (HEnD) rats in this study. RESULTS Dopamine induced a downward deflection in ISC and an increase in FITC-dextran permeability of control rat duodenum, which were inhibited by the D1-like receptor antagonist, SCH-23390. However, DA decreased duodenal transepithelial resistance (TER), an effect also reversed by SCH-23390. A strong immunofluorescence signal for D5 R, but not D1 R, was observed in the duodenum of control rat. In human D5 R knock-in transgenic mice, duodenal mucosa displayed an increased basal ISC with high FITC-dextran permeability and decreased TER with a lowered expression of tight junction proteins, suggesting attenuated duodenal barrier function in these transgenic mice. D5 R knock-down transgenic mice manifested a decreased basal ISC with lowered FITC-dextran permeability. Moreover, an increased FITC-dextran permeability combined with decreased TER and tight junction protein expression in duodenal mucosa were also observed in HEnD rats. CONCLUSION This study demonstrates, for the first time, that DA enhances duodenal permeability of control rat via D5 R, which provides new experimental and theoretical evidence for the influence of DA on duodenal epithelial barrier function.
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Affiliation(s)
- X.-Y. Feng
- Department of Physiology and Pathophysiology; School of Basic Medical Science; Capital Medical University; Beijing China
| | - D.-N. Zhang
- Department of Physiology and Pathophysiology; School of Basic Medical Science; Capital Medical University; Beijing China
| | - Y.-A. Wang
- Department of Physiology and Pathophysiology; School of Basic Medical Science; Capital Medical University; Beijing China
| | - R.-F. Fan
- Department of Physiology and Pathophysiology; School of Basic Medical Science; Capital Medical University; Beijing China
| | - F. Hong
- Department of Physiology and Pathophysiology; School of Basic Medical Science; Capital Medical University; Beijing China
| | - Y. Zhang
- Department of Physiology and Pathophysiology; School of Basic Medical Science; Capital Medical University; Beijing China
| | - Y. Li
- Department of Immunology; School of Basic Medical Science; Capital Medical University; Beijing China
| | - J.-X. Zhu
- Department of Physiology and Pathophysiology; School of Basic Medical Science; Capital Medical University; Beijing China
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Yang RL, Tong F, Hong F, Qian GL, Wu DW, Zhao ZY. [Analysis of newborn screening for galactosemia and genotype-phenotype of confirmed galatosemia cases]. Zhonghua Er Ke Za Zhi 2017; 55:104-109. [PMID: 28173647 DOI: 10.3760/cma.j.issn.0578-1310.2017.02.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Objective: To investigate the prevalence of galactosemia(GAL), and the characteristics of genotype and phenotype of newborns who were confirmed with GAL in newborn screening in Zhejiang province. Method: The number of all live births, newborn screened infants and all clinical data of confirmed newborns with GAL from October 2013 to March 2015 were retrospectively analyzed by reviewing the data of Zhejiang Province screening center database. And the characteristics of genes and the clinical data of GAL cases who were confirmed by correlative gene test and enzyme activity measurement were analyzed. Result: The prevalence of GAL in Zhejiang province was 1/189 857. Among them, there was 1 case confirmed with GAL typeⅠ (prevalence, 1/759 428), with mutations of c. 904+ 1G>T and c. 687G>A, the enzyme activity of galactose-1-phosphate uridyltransferase (GALT) was 56.4% of controls. And there was 1 case of GAL typeⅡ(prevalence, 1/759 428), with mutations of c. 85G>T and c. 502G>A. There were 2 cases confirmed with GAL type Ⅲ(prevalence, 1/379 714), with mutations of c. 505C>T, c. 452G>A, c. 280G>A and c. 925G>A, the enzyme activity of UDP-galactose-4'-epimerase (GALE) were 42% and 38% of controls, respectively. All cases had different abnormal biochemical marks of liver function, and 1 case had combined hyperlactacidemia or hyperammonemia or increase of multiple kinds of amino acids, respectively. The newborn of GAL type Ⅱ had phacoscotasmus before treatment. All the cases were fed with lactose free milk powder, and all the abnormal parameters were improved during following up. Conclusion: The disease of GAL is rare in Zhejiang province, and its genotype distribution is scattered with comparatively mind clinical manifestations, and the cases with early treatment with lactose free milk powder have good prognosis. All cases needed to be treated and followed up for a life-long time. It is recommended that the high risk cases with GAL should be screened as soon as possible.
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Affiliation(s)
- R L Yang
- Department of Genetic and Metabolic diseases, Children's Hospital of Zhejiang University School of Medicine, Hangzhou 310052, China
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Hong F, Fan CM. [Research progress on LEOPARD syndrome]. Zhonghua Xin Xue Guan Bing Za Zhi 2016; 44:1006-1009. [PMID: 28056229 DOI: 10.3760/cma.j.issn.0253-3758.2016.12.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Huang XW, Zhang Y, Yang JB, Hong F, Qian GL, Tong F, Mao HQ, Huang XL, Zhou XL, Yang RL, Zhao ZY. [Clinical, biochemical and gene mutation characteristics of short chain acyl-coenzyme A dehydrogenase deficiency by neonatal screening]. Zhonghua Er Ke Za Zhi 2016; 54:927-930. [PMID: 27938594 DOI: 10.3760/cma.j.issn.0578-1310.2016.12.011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Objective: To investigate the incidence, clinical, biochemical and gene mutation characteristics of short chain acyl-coenzyme A dehydrogenase deficiency (SCADD). Method: From January, 2009 to October, 2015, a retrospective analysis of the urine organic acids and acyl-coenzyme A dehydrogenase (ACADS) gene mutation characteristics of patients diagnosed as SCADD by newborn screening using tandem mass spectrometry in Department of Genetics and Metabolism (Newborn screening Center of Zhejiang Province), Children's Hospital, Zhejiang University School of Medicine. Dietary guidance, life management and supplementation of L-carnitine were conducted, and growth and intelligence development were observed during follow-up among the SCADD patients. Result: A total of 1 430 024 neonates, seventeen cases were diagnosed with SCADD with an incidence of 1/84 117. All patients had no clinical symptoms, and intelligence and physical development were normal. Blood butylacyl-carnitine (C4) levels and the ratios increased, C4 0.713.14 μmol/L(reference value 0.03-0.48 μmol/L), C4/C2 0.07-0.23(reference value 0.01-0.04), C4/C3 0.65-2.04(reference value 0.05-0.39). Thirteen with increased urinary ethyl malonic acid (9.30-90.99 mg/g creatinine (reference value 0-6.20 mg/g creatinine )), one patient was accompanied by increased methyl succinic acid (12.33 mg/g creatinine(reference value 0-6.40 mg/g creatinine)), one subject with increased acetylglycine (3.52 mg/g creatinine(reference value 0-0.70 mg/g creatinine)). A total of 13 known mutations were detected in the ACADS gene, 1 homozygous mutation (c.1031A>G), the others are compound heterozygous mutations. One frameshift mutation (c.508_509delGC) and 12 missense mutations were detected. Common mutation were c. 1031A>G(35.3%), c. 164C>T(20.6%) and c. 991G>A(11.8%). SCADD in newborn screening program had no clinical symptoms and normal growth development after 8-42 months follow-up. Conclusion: Cases with SCADD had no clinical symptoms with an incidence of 1/84117. The c. 164C>T and c. 1031A>G may be the common mutations.
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Affiliation(s)
- X W Huang
- Department of Genetics and Metabolism, Children's Hospital, Zhejiang University School of Medicine, Hangzhou 310052, China
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Fleischmann R, Wagner F, Kivitz A, Mansikka H, Khan N, Liu J, Hong F, Ruzek M, Padley R. FRI0188 Safety, Tolerability, and Pharmacodynamics of ABT-122, A Dual TNF- and IL-17–Targeted Dual Variable Domain (DVD)-IG™ in Patients with Rheumatoid Arthritis. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.3676] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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22
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Tong F, Huang XW, Hong F. [Two cases of UDP-galactose-4'-epimerase deficiency]. Zhonghua Er Ke Za Zhi 2016; 54:299-300. [PMID: 27055432 DOI: 10.3760/cma.j.issn.0578-1310.2016.04.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
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23
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Hong F, Wu N, Ge Y, Zhou Y, Shen T, Qiang Q, Zhang Q, Chen M, Wang Y, Wang L, Hong J. Nanosized titanium dioxide resulted in the activation of TGF-β/Smads/p38MAPK pathway in renal inflammation and fibration of mice. J Biomed Mater Res A 2016; 104:1452-61. [PMID: 26850371 DOI: 10.1002/jbm.a.35678] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2015] [Revised: 12/31/2015] [Accepted: 02/02/2016] [Indexed: 02/04/2023]
Abstract
Titanium dioxide nanoparticles (TiO2 NPs) have been demonstrated to damage the kidneys. However, whether chronic nephritis leads to renal fibration or the fibrosis is associated with the activation of TGF-β/Smads/p38MAPK pathway caused by TiO2 NPs exposure is not well understood. Forty male mice were separately exposed to 0, 2.5, 5, or 10 mg/kg body weight TiO2 NPs for 6 months. Renal biochemical functions and levels of TGF-β/Smads/p38MAPK pathway-related markers and extracellular matrix (ECM) expression in the kidneys were investigated. The findings showed that subchronic TiO2 NPs exposure increased levels of urinary creatisix (Cr), N-acetyl-glucosaminidase, and vanin-1, resulted in severe renal inflammation and fibration. Furthermore, TiO2 NP exposure upregulated expression of transforming growth factor-β1 (TGF-β1, 0.07- to 2.72-fold), Smad2 (0.42- to 1.63-fold), Smad3 (0.02- to 1.94-fold), ECM (0.15- to 2.75-fold), α-smooth muscle actin (0.14- to 3.06-fold), p38 mitogen-activated protein kinase (p38MAPK, 0.11- to 3.78-fold), and nuclear factor-κB (0.4- to 2.27-fold), and downregulated Smad7 (0.05- to 0.61-fold) expression in mouse kidney. Subchronic TiO2 NPs exposure induced changes of renal characteristics towards inflammation and fibration may be mediated via TGF-β/Smads/p38MAPK pathway, and the uses of TiO2 NPs should be carried out cautiously, especially in humans. © 2016 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 104A: 1452-1461, 2016.
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Affiliation(s)
- F Hong
- Jiangsu Collaborative Innovation Center of Regional Modern Agriculture & Environmental Protection, Huaiyin Normal University, Huaian, 223300, China.,Jiangsu Key Laboratory for Eco-Agricultural Biotechnology around Hongze Lake, Huaiyin Normal University, Huaian, 223300, China.,School of Life Sciences, Huaiyin Normal University, Huaian, 223300, China
| | - N Wu
- Jiangsu Collaborative Innovation Center of Regional Modern Agriculture & Environmental Protection, Huaiyin Normal University, Huaian, 223300, China.,Jiangsu Key Laboratory for Eco-Agricultural Biotechnology around Hongze Lake, Huaiyin Normal University, Huaian, 223300, China.,School of Life Sciences, Huaiyin Normal University, Huaian, 223300, China
| | - Y Ge
- Jiangsu Collaborative Innovation Center of Regional Modern Agriculture & Environmental Protection, Huaiyin Normal University, Huaian, 223300, China.,Jiangsu Key Laboratory for Eco-Agricultural Biotechnology around Hongze Lake, Huaiyin Normal University, Huaian, 223300, China.,School of Life Sciences, Huaiyin Normal University, Huaian, 223300, China
| | - Y Zhou
- Jiangsu Collaborative Innovation Center of Regional Modern Agriculture & Environmental Protection, Huaiyin Normal University, Huaian, 223300, China.,Jiangsu Key Laboratory for Eco-Agricultural Biotechnology around Hongze Lake, Huaiyin Normal University, Huaian, 223300, China.,School of Life Sciences, Huaiyin Normal University, Huaian, 223300, China
| | - T Shen
- Jiangsu Collaborative Innovation Center of Regional Modern Agriculture & Environmental Protection, Huaiyin Normal University, Huaian, 223300, China.,Jiangsu Key Laboratory for Eco-Agricultural Biotechnology around Hongze Lake, Huaiyin Normal University, Huaian, 223300, China.,School of Life Sciences, Huaiyin Normal University, Huaian, 223300, China
| | - Q Qiang
- Jiangsu Collaborative Innovation Center of Regional Modern Agriculture & Environmental Protection, Huaiyin Normal University, Huaian, 223300, China.,Jiangsu Key Laboratory for Eco-Agricultural Biotechnology around Hongze Lake, Huaiyin Normal University, Huaian, 223300, China.,School of Life Sciences, Huaiyin Normal University, Huaian, 223300, China
| | - Q Zhang
- Jiangsu Collaborative Innovation Center of Regional Modern Agriculture & Environmental Protection, Huaiyin Normal University, Huaian, 223300, China.,Jiangsu Key Laboratory for Eco-Agricultural Biotechnology around Hongze Lake, Huaiyin Normal University, Huaian, 223300, China.,School of Life Sciences, Huaiyin Normal University, Huaian, 223300, China
| | - M Chen
- Jiangsu Collaborative Innovation Center of Regional Modern Agriculture & Environmental Protection, Huaiyin Normal University, Huaian, 223300, China.,Jiangsu Key Laboratory for Eco-Agricultural Biotechnology around Hongze Lake, Huaiyin Normal University, Huaian, 223300, China.,School of Life Sciences, Huaiyin Normal University, Huaian, 223300, China
| | - Y Wang
- Jiangsu Collaborative Innovation Center of Regional Modern Agriculture & Environmental Protection, Huaiyin Normal University, Huaian, 223300, China.,Jiangsu Key Laboratory for Eco-Agricultural Biotechnology around Hongze Lake, Huaiyin Normal University, Huaian, 223300, China.,School of Life Sciences, Huaiyin Normal University, Huaian, 223300, China
| | - L Wang
- Library of Soochow University, Suzhou, 215123, China
| | - J Hong
- Medical College of Soochow University, Suzhou, 215123, China
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Macatangay B, Blain CK, Hong F, Bui J, Cillo A, Mellors J. Co-expression of multiple inhibitory receptors on CD8 + T cells in viremic and ART-suppressed HIV-1(+) individuals. J Virus Erad 2015. [DOI: 10.1016/s2055-6640(20)31400-x] [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: 10/23/2022] Open
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25
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Wang S, Loebbert R, Sampson E, Saltarelli M, Medema J, Hong F. THU0491 Dual Variable Domain-Immunoglobulin (DVD-IG™) ABT-981 Simultaneously and Dose-Dependently Inhibits Interleukin-1 Alpha and -1 Beta in Subjects with Knee Osteoarthritis. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.5091] [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: 11/04/2022]
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26
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Yang L, Yang J, Zhang T, Weng C, Hong F, Tong F, Yang R, Yin X, Yu P, Huang X, Qi M. Identification of eight novel mutations and transcript analysis of two splicing mutations in Chinese newborns with MCC deficiency. Clin Genet 2014; 88:484-8. [PMID: 25382614 DOI: 10.1111/cge.12535] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2014] [Revised: 11/04/2014] [Accepted: 11/04/2014] [Indexed: 11/26/2022]
Affiliation(s)
- L. Yang
- Department of Genetics and Metabolism; Children's Hospital; School of Medicine Zhejiang University; Hangzhou China
- Department of Cell Biology and Medical Genetics; School of Medicine Zhejiang University; Hangzhou China
| | - J. Yang
- Department of Genetics and Metabolism; Children's Hospital; School of Medicine Zhejiang University; Hangzhou China
| | - T. Zhang
- Department of Genetics and Metabolism; Children's Hospital; School of Medicine Zhejiang University; Hangzhou China
| | - C. Weng
- Department of Cell Biology and Medical Genetics; School of Medicine Zhejiang University; Hangzhou China
| | - F. Hong
- Department of Genetics and Metabolism; Children's Hospital; School of Medicine Zhejiang University; Hangzhou China
| | - F. Tong
- Department of Genetics and Metabolism; Children's Hospital; School of Medicine Zhejiang University; Hangzhou China
| | - R. Yang
- Department of Genetics and Metabolism; Children's Hospital; School of Medicine Zhejiang University; Hangzhou China
| | - X. Yin
- Department of Medicine; School of Medicine Hangzhou Normal University; Hangzhou China
| | - P. Yu
- Department of Cell Biology and Medical Genetics; School of Medicine Zhejiang University; Hangzhou China
| | - X. Huang
- Department of Genetics and Metabolism; Children's Hospital; School of Medicine Zhejiang University; Hangzhou China
| | - M. Qi
- Department of Cell Biology and Medical Genetics; School of Medicine Zhejiang University; Hangzhou China
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Skapenko A, Schulze-Koops H, Devanarayan V, Idler K, Hong F, Smolen J, Kavanaugh A, Kupper H, Waring J. OP0034 Identification of Genetic Variants Associated with Response to Methotrexate in Patients with Early Rheumatoid Arthritis: Results from the Optima Study:. Ann Rheum Dis 2014. [DOI: 10.1136/annrheumdis-2014-eular.1318] [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: 11/03/2022]
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28
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Hong F, Habermann TM, Gordon LI, Hochster H, Gascoyne RD, Morrison VA, Fisher RI, Bartlett NL, Stiff PJ, Cheson BD, Crump M, Horning SJ, Kahl BS. The role of body mass index in survival outcome for lymphoma patients: US intergroup experience. Ann Oncol 2014; 25:669-674. [PMID: 24567515 PMCID: PMC4433526 DOI: 10.1093/annonc/mdt594] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2013] [Accepted: 12/17/2013] [Indexed: 01/21/2023] Open
Abstract
BACKGROUND The role of body mass index (BMI) in survival outcomes is controversial among lymphoma patients. We evaluated the association between BMI at study entry and failure-free survival (FFS) and overall survival (OS) in three phase III clinical trials, among patients with diffuse large B-cell lymphoma (DLBCL), follicular lymphoma (FL) and Hodgkin's lymphoma (HL). PATIENTS AND METHODS A total of 537, 730 and 282 patients with DLBCL, HL and FL were included in the analysis. Baseline patient and clinical characteristics, treatment received and clinical outcomes were compared across BMI categories. RESULTS Among patients with DLBCL, HL and FL, the median age was 70, 33 and 56; 29%, 29% and 37% were obese and 38%, 27% and 37% were overweight, respectively. Age was significantly different among BMI groups in all three studies. Higher BMI groups tended to have more favorable prognosis factors at study entry among DLBCL and HL patients. BMI was not associated with clinical outcome with P-values of 0.89, 0.30 and 0.40 for FFS, and 0.64, 0.67 and 0.09 for OS, for patients with DLBCL, HL and FL, respectively. The association remains non-significant after adjusting for other clinical factors in the Cox model. A subset analysis of males with DLBCL treated on R-CHOP revealed no differences in FFS (P = 0.48) or OS (P = 0.58). CONCLUSION BMI was not significantly associated with clinical outcomes among patients with DLBCL, HD or FL, in three prospective phase III clinical trials. The findings contradict some previous reports of similar investigations. Further work is required to understand the observed discrepancies.
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Affiliation(s)
- F Hong
- Dana Farber Cancer Institute, Boston, MA.
| | | | | | | | - R D Gascoyne
- British Columbia Cancer Agency, Vancouver, Canada
| | - V A Morrison
- University of Minnesota, VA Medical Center, Minneapolis, MN
| | - R I Fisher
- Fox Chase Cancer Center, Philadelphia, PA
| | | | | | - B D Cheson
- Georgetown University Hospital, Washington, DC, USA
| | - M Crump
- Princess Margaret Hospital, Toronto, Ontario, Canada
| | | | - B S Kahl
- University of Wisconsin, Madison, WI, USA
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Mozaffarian N, Smolen JS, Devanarayan V, Hong F, Kavanaugh A. FRI0086 Biomarkers identify radiographic progressors and clinical responders among patients with early rheumatoid arthritis. Ann Rheum Dis 2014. [DOI: 10.1136/annrheumdis-2013-eular.1213] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Erbe AK, Wang W, Grzywacz B, Ranheim EA, Hank JA, Kim K, Carmichael L, Seo S, Mendonca EA, Song Y, Hong F, Gascoyne RD, Paietta E, Horning SH, Kahl B, Sondel PM. Rituximab response in follicular lymphoma: contributions from KIR 2DS1 and HLA-C. J Immunother Cancer 2013. [PMCID: PMC3991291 DOI: 10.1186/2051-1426-1-s1-p243] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022] Open
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Tsui HY, Lau JTF, Feng T, Hong F, Cai Y, Zhou H, Liu X. Sexual dysfunction and unprotected anal intercourse among men who have sex with men in two Chinese cities. J Sex Marital Ther 2013; 40:139-148. [PMID: 23790223 DOI: 10.1080/0092623x.2012.702339] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
This study investigated the associations between sexual dysfunction and unprotected anal intercourse among adult Chinese men who have sex with men; 519 participants who had had anal sex (past 12 months) were recruited from gay venues (Hong Kong and Shenzhen) and from the Internet (Hong Kong). Respectively, 48.9% and 59.6% (p< .05) of the Hong Kong and Shenzhen participants had had at least one type of sexual dysfunction for 3 consecutive months (past 12 months); the difference may be explained by differential income levels or other factors. After adjustment for significant background variables, three variables related to sexual dysfunction (premature ejaculation, erectile dysfunction, and experienced at least one sexual dysfunction) were significantly associated with unprotected anal intercourse in the Hong Kong (adjusted odds ratio = 1.65-2.80) and Shenzhen samples (adjusted odds ratio = 5.46-6.41). Anxiety about sex was significant only in the Shenzhen sample (adjusted odds ratio = 8.67). The associations may be results of coping toward sexual dysfunction. Sexual dysfunction is prevalent and may contribute to unprotected anal intercourse among men who have sex with men in China. Physiological damages of receptive anal sex may contribute to some types of sexual dysfunction. However, one limitation is that participants were not asked about insertion/receptive anal sex. HIV interventions targeting men who have sex with men in China need to take counseling related to sexual dysfunction into account.
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Affiliation(s)
- Hi Yi Tsui
- a Centre for Health Behaviours Research, School of Public Health and Primary Care, Faculty of Medicine , The Chinese University of Hong Kong , Hong Kong , Hong Kong
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Waring JF, Devanarayan V, Idler K, Hong F, Smolen JS, Kavanaugh A, Kupper H, Schulze-Koops H, Skapenko A. FRI0051 Application of a multiplex gene polymorphism assay for variants associated with rheumatoid arthritis susceptibility - results of 168 snps tested in the optima study. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2013-eular.1178] [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: 11/04/2022]
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Hong F, Junling H, Yi S, Chi L, Huan Z, Yu Qing D, Lingxia L, Yang G, Ming L. The effects of angiotensin-converting enzyme-inhibitory peptide LAP on the left common carotid artery remodeling in spontaneously hypertensive rats. Ir J Med Sci 2013; 182:711-8. [PMID: 23661144 DOI: 10.1007/s11845-013-0963-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2012] [Accepted: 04/24/2013] [Indexed: 11/25/2022]
Abstract
OBJECTIVE To investigate the protective effect of angiotensin-converting enzyme (ACE)-inhibitory peptide LAP on the left common carotid artery remodeling in spontaneously hypertensive rats (SHRs). METHODS A cohort of male SHRs were randomly divided into three groups (n = 10 for each group): pseudo-experimental group, enalapril-treated group as a positive control group, ACE-inhibitory peptide LAP-treated group. After the experiment, the left common carotid artery from each rat was removed for morphological evaluation. RESULTS It was observed that the vascular medial thickness, media thickness/lumen diameter, medial cross-sectional area and mean nuclear area of smooth muscle cells of the left common carotid artery in the LAP group or enalapril group were significantly lower than those in the pseudo-experimental group, while there was no significant difference in these parameters observed between the LAP group and enalapril group. Additionally, the vascular area percentage of collagen fibers of the left common carotid artery in the LAP group and enalapril group was significantly lower than that of the pseudo-experimental group. CONCLUSIONS The protective vessel remodeling effect in SHRs was observed with ACE-inhibitory peptide LAP in SHRs by decreasing blood pressure, inhibiting smooth muscle cell hypertrophy and reducing the proliferation of collagen fibers.
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Affiliation(s)
- F Hong
- Department of Cardiology, Tongji Hospital Affiliated to Tongji University, Shanghai, 200065, China
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Giles FJ, Mauro MJ, Hong F, Ortmann CE, McNeill C, Woodman RC, Hochhaus A, le Coutre PD, Saglio G. Rates of peripheral arterial occlusive disease in patients with chronic myeloid leukemia in the chronic phase treated with imatinib, nilotinib, or non-tyrosine kinase therapy: a retrospective cohort analysis. Leukemia 2013; 27:1310-5. [PMID: 23459450 DOI: 10.1038/leu.2013.69] [Citation(s) in RCA: 157] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Peripheral arterial occlusive disease (PAOD) occurs in patients with chronic phase chronic myeloid leukemia (CML-CP) treated with tyrosine kinase inhibitors (TKIs). The risk of developing PAOD on TKI therapy is unknown and causality has not been established. Patients with CML-CP from three randomized phase III studies (IRIS, TOPS and ENESTnd) were divided into three cohorts: no TKI (cohort 1; n=533), nilotinib (cohort 2; n=556) and imatinib (cohort 3; n=1301). Patients with atherosclerotic risk factors were not excluded. Data were queried for terms indicative of PAOD. Overall, 3, 7 and 2 patients in cohorts 1, 2 and 3, respectively, had PAOD; 11/12 patients had baseline PAOD risk factors. Compared with that of cohort 1, exposure-adjusted risks of PAOD for cohorts 2 and 3 were 0.9 (95% CI, 0.2-3.3) and 0.1 (95% CI, 0.0-0.5), respectively. Multivariate logistic regression revealed that nilotinib had no impact on PAOD rates compared with no TKI, whereas imatinib had decreased rates of PAOD compared with no TKI. Nilotinib was associated with higher rates of PAOD versus imatinib. Baseline assessments, preferably within clinical studies, of PAOD and associated risk factors should occur when initiating TKI therapy in CML; patients should receive monitoring and treatment according to the standard of care for these comorbidities.
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Affiliation(s)
- F J Giles
- HRB Clinical Research Facility, National University of Ireland Galway and Trinity College Dublin, Dublin, Ireland.
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Shamba P, Wang JL, Debnath JC, Kennedy SJ, Zeng R, Din MFM, Hong F, Cheng ZX, Studer AJ, Dou SX. The magnetocaloric effect and critical behaviour of the Mn(0.94)Ti(0.06)CoGe alloy. J Phys Condens Matter 2013; 25:056001. [PMID: 23262456 DOI: 10.1088/0953-8984/25/5/056001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Structural, magnetic and magnetocaloric properties of the Mn(0.94)Ti(0.06)CoGe alloy have been investigated using x-ray diffraction, DC magnetization and neutron diffraction measurements. Two phase transitions have been detected, at T(str) = 235 K and T(C) = 270 K. A giant magnetocaloric effect has been obtained at around T(str) associated with a structural phase transition from the low temperature orthorhombic TiNiSi-type structure to the high temperature hexagonal Ni(2)In-type structure, which is confirmed by neutron study. In the vicinity of the structural transition, at T(str), the magnetic entropy change, -ΔS(M) reached a maximum value of 14.8 J kg(-1) K(-1) under a magnetic field of 5 T, which is much higher than that previously reported for the parent compound MnCoGe. To investigate the nature of the magnetic phase transition around T(C) = 270 K from the ferromagnetic to the paramagnetic state, we performed a detailed critical exponent study. The critical components γ, β and δ determined using the Kouvel-Fisher method, the modified Arrott plot and the critical isotherm analysis agree well. The values deduced for the critical exponents are close to the theoretical prediction from the mean-field model, indicating that the magnetic interactions are long range. On the basis of these critical exponents, the magnetization, field and temperature data around T(C) collapse onto two curves obeying the single scaling equation M(H,ε) = ε(β)f ± (H/ε(β+γ)).
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Affiliation(s)
- P Shamba
- Institute for Superconducting and Electronic Materials, University of Wollongong, Wollongong, NSW 2522, Australia
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Zhu P, Guo T, Yu H, Lin F, Hong F, Zhang L. Study on correlation between eGFR and atherosclerosis in patients with non-dialysis chronic kidney disease. Heart 2011. [DOI: 10.1136/heartjnl-2011-300867.710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Wang B, Zhou S, Hong F, Wang J, Liu X, Cai Y, Wang F, Feng T, Ma X. Association Analysis Between the Tag SNP for Sonic Hedgehog rs9333613 Polymorphism and Male Sexual Orientation. ACTA ACUST UNITED AC 2011; 33:951-4. [DOI: 10.2164/jandrol.110.012849] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Evens AM, Hong F, Gordon LI, Fisher RI, Bartlett N, Connors JM, Wagner H, Gospodarowicz MK, Cheson BD, Advani R, Kahl BS, Hoppe RT, Horning SJ. Efficacy and tolerability of ABVD and Stanford V for elderly advanced-stage Hodgkin lymphoma (HL): Analysis from the phase III randomized U.S. Intergroup Trial E2496. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.8035] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Hathaway M, Hatle J, Li S, Ding X, Barry T, Hong F, Wood H, Borst D. Characterization of hexamerin proteins and their mRNAs in the adult lubber grasshopper: The effects of nutrition and juvenile hormone on their levels. Comp Biochem Physiol A Mol Integr Physiol 2009; 154:323-32. [DOI: 10.1016/j.cbpa.2009.06.018] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2009] [Revised: 06/17/2009] [Accepted: 06/18/2009] [Indexed: 10/20/2022]
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Wang X, Lu D, Jönsson LJ, Hong F. Preparation of a PET‐Hydrolyzing Lipase fromAspergillus oryzaeby the Addition of Bis(2‐hydroxyethyl) Terephthalate to the Culture Medium and Enzymatic Modification of PET Fabrics. Eng Life Sci 2008. [DOI: 10.1002/elsc.200700058] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
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Cheon J, Hong F, Hidaka T, Koshikawa H, Tsuno H. Microbial population dynamics in a thermophilic methane digester fed with garbage. Water Sci Technol 2007; 55:175-82. [PMID: 17564383 DOI: 10.2166/wst.2007.320] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
The diversity of microbial communities in three full-scale thermophilic anaerobic digesters which treated garbage, sewage sludge and livestock wastes (hereafter called TGD, TSD and TLD, respectively) was investigated using 16S rDNA clone libraries in triplicate. The population dynamics of TGD were also studied. The purposes were to show the microbial diversity in each reactor and to suggest which key microbes in a thermophilic methane digester fed with garbage, including a check of reproducibility and the suggestion of an error range in this molecular biology method. 736 clones were identified, and the maximum error was estimated to be around +/-10% for the same OTU (operational taxonomic unit) and for most detected OTUs. The most frequently detected OTU shows a close relationship to Uncultured bacterium clone MBA08, Unidentified bacterium clone TUG22 and Uncultured archaeal symbiont PA204 in TGD, TSD and TLD, respectively. The microbial population dynamics in TGD were studied over a period of 90 days, and the occupying ratios of Bacillus infernus and Methanothermobacter wolfeii were shown to change with the change in VFA concentration. From the dynamic change and characteristics of the microbes, it is concluded that Bacillus infernus and Methanothermobacter wolfeii played an important role and were recommended as key microbes in TGD.
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Affiliation(s)
- J Cheon
- Department of Urban & Environmental Engineering, Kyoto University, Kyoto, Japan.
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Fu JF, Liang L, Zou CC, Hong F, Wang CL, Wang XM, Zhao ZY. Prevalence of the metabolic syndrome in Zhejiang Chinese obese children and adolescents and the effect of metformin combined with lifestyle intervention. Int J Obes (Lond) 2006; 31:15-22. [PMID: 16953257 DOI: 10.1038/sj.ijo.0803453] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
OBJECTIVE We aimed to evaluate the prevalence of metabolic syndrome (MS) in a group of obese children and adolescents in Zhejiang in the south of China, and to compare risk factors such as insulin resistance, adiponectin level and impaired glucose tolerance (IGT) etc with that of simple obese group (SOB) and non-obese healthy group, and also to evaluate the effect of metformin and lifestyle intervention in MS group by up to a 3-month follow-up. METHODS Three hundred and forty eight moderately or severely obese adolescents aged between 7 and 16 years were enrolled. Oral glucose tolerance test (OGTT), biochemical indicators, blood pressure and body mass index (BMI) were assessed in all of them. Three subgroups were selected (MS group, SOB and healthy control). Adiponectin levels, Whole body insulin sensitive index (WBISI), homeostasis model of insulin resistance (HOMA-IR), plasma lipid and blood pressure were compared in these three groups. Thirty out of thirty-six MS subjects with age over 10 years received metformin treatment combined with lifestyle modification. RESULTS (1) The prevalence of MS was 10.34% among all obese subjects, which increased with the severity of obesity and reached 22.1% in severely obese children and adolescents. The occurrence of more than one complication reached 72.13%. The incidence of type 2 diabetes and IGT were 1.44 and 1.44% respectively. (2) BMI, waist-to-hip ratio (WHR) and HOMA-IR increased stepwise in the control group, SOB and MS group, whereas serum adiponectin and WBISI decreased stepwise (all P<0.01). Systolic pressure, triglyceride, total cholesterol, low-density lipoprotein cholesterol and postprandial 2-h blood glucose in the MS group increased significantly compared to those in control and SOBs (all P<0.01). A correlation analysis showed that serum levels of adiponectin and WBISI were associated with the components of MS (all P<0.05). (3) After metformin and lifestyle intervention, clinical symptoms were ameliorated, serum adiponectin levels were actually increased and HOMA-IR was dropped in 20/30 MS children who had finished a 3-months follow-up (all P<0.01). CONCLUSION The prevalence of MS in severely obese children and adolescents in Zhejiang area has reached a high level. Insulin resistance and hypoadiponectinemia were found in these MS children. Metformin combined with lifestyle modification was confirmed to be efficient and safe in treating the obese adolescents with MS.
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Affiliation(s)
- J-F Fu
- Department of Endocrinology, the Children's Hospital of Zhejiang University School of Medicine, Hangzhou, China
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Abstract
Time-course studies of gene expression are essential in biomedical research to understand biological phenomena that evolve in a temporal fashion. We introduce a functional hierarchical model for detecting temporally differentially expressed (TDE) genes between two experimental conditions for cross-sectional designs, where the gene expression profiles are treated as functional data and modeled by basis function expansions. A Monte Carlo EM algorithm was developed for estimating both the gene-specific parameters and the hyperparameters in the second level of modeling. We use a direct posterior probability approach to bound the rate of false discovery at a pre-specified level and evaluate the methods by simulations and application to microarray time-course gene expression data on Caenorhabditis elegans developmental processes. Simulation results suggested that the procedure performs better than the two-way ANOVA in identifying TDE genes, resulting in both higher sensitivity and specificity. Genes identified from the C. elegans developmental data set show clear patterns of changes between the two experimental conditions.
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Affiliation(s)
- F Hong
- Plant Biology Laboratory, The Salk Institute, La Jolla, California 92037, USA
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Nordberg GF, Jin T, Hong F, Zhang A, Buchet JP, Bernard A. Biomarkers of cadmium and arsenic interactions. Toxicol Appl Pharmacol 2005; 206:191-7. [PMID: 15967208 DOI: 10.1016/j.taap.2004.11.028] [Citation(s) in RCA: 74] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2004] [Accepted: 11/04/2004] [Indexed: 11/17/2022]
Abstract
Advances in proteomics have led to the identification of sensitive urinary biomarkers of renal dysfunction that are increasingly used in toxicology and epidemiology. Recent animal data show that combined exposure to inorganic arsenic (As) and cadmium (Cd) gives rise to more pronounced renal toxicity than exposure to each of the agents alone. In order to examine if similar interaction occurs in humans, renal dysfunction was studied in population groups (619 persons in total) residing in two metal contaminated areas in China: mainly a Cd contaminated area in Zhejiang province (Z-area) and mainly a As contaminated area in Guizhou province (G-area). Nearby control areas without excessive metal exposure were also included. Measurements of urinary beta(2)-microglobulin (UB2MG), N-acetyl-beta-glucosaminidase (UNAG), retinol binding protein (URBP) and albumin (UALB) were used as markers of renal dysfunction. Urinary Cd (UCd) and total As (UTAs) were analyzed by graphite-furnace atomic absorption spectrometry. Urinary inorganic As and its mono- and di-methylated metabolites (UIAs) were determined by Hydride generation. Results. As expected, the highest UCd values occurred in Z-area (Geometric mean, GM 11.6 microg/g crea) while the highest UTAs values occurred in G-area (GM = 288 microg/g crea). Statistically significant increases compared to the respective control area were present both for UTAs, UCd and for UB2MG, UNAG and UALB in Z-area as well as in G-area. UIAs was determined only in Z area. In G-area, there was a clear dose-response pattern both in relation to UTAs and UCd for each of the biomarkers of renal dysfunction. An interaction effect between As and Cd was demonstrated at higher levels of a combined exposure to As and Cd enhancing the effect on the kidney. In Z-area an increased prevalence of B2MG-uria, NAG-uria and ALB-uria was found in relation to UCd, but no relationship to UTAs was found. A statistically significant relationship between UIAs and UB2MG was found among women in this area and an interaction between As and Cd was indicated for B2MG. Conclusion. The present studies, which employed sensitive biomarkers of renal dysfunction, give support to the idea that human co-exposure to Cd and inorganic arsenic gives rise to more pronounced renal damage than exposure to each of the elements alone, but further studies are needed to establish and clarify this interaction.
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Affiliation(s)
- G F Nordberg
- Environmental Medicine, Umeå University, S-901 87 Umeå, Sweden.
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Hammond PI, Kern C, Hong F, Kollmeyer TM, Pang YP, Brimijoin S. Cholinesterase reactivation in vivo with a novel bis-oxime optimized by computer-aided design. J Pharmacol Exp Ther 2003; 307:190-6. [PMID: 12893843 DOI: 10.1124/jpet.103.053405] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.4] [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: 11/22/2022] Open
Abstract
Recently, several bis-pyridiniumaldoximes linked by a variable-length alkylene chain were rationally designed in our laboratories as cholinesterase reactivators. Extensive in vitro tests of these oximes with acetylcholinesterase inhibited by two different organophosphate agents, echothiophate and diisopropylfluorophosphate, revealed one compound with particularly good reactivation kinetics and affinity for phosphorylated acetylcholinesterase (AChE). This compound, designated "ortho-7", with a heptylene chain bridging two aldoximes ortho to a pyridinium ring nitrogen, was chosen for detailed comparison with the classic reactivator pyridine-2-aldoxime methochloride (2-PAM). In vitro, ortho-7 reactivated AChE selectively, without restoring activity of the related enzyme butyrylcholinesterase (BChE). For in vivo studies, rats were injected with ortho-7 or 2-PAM before or after organophosphate exposure, and the activities of AChE and BChE were determined at multiple intervals in blood and solid tissues. Ortho-7 behaved nearly as well in the animal as in vitro, reactivating AChE to the same extent as 2-PAM in all peripheral tissues studied (serum, red blood cell, and diaphragm), but at doses up to 100-fold smaller. Like other oxime reactivators, ortho-7 did not reactivate brain AChE after systemic administration. Nonetheless, this agent could be useful in combination therapy for organophosphate exposure, and it may provide a platform for development of additional, even more effective reactivators.
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Affiliation(s)
- P I Hammond
- Department of Molecular Pharmacology and Experimental Therapeutics, Mayo Foundation for Medical Education and Research, Rochester, MN 55905, USA
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Hong F, Yang BL, Schwartz LH, Kung HH. Crystallite size effect in the selective oxidation of butene to butadiene on iron oxide. 1. Moessbauer, x-ray and magnetization characterization of the catalysts. ACTA ACUST UNITED AC 2002. [DOI: 10.1021/j150656a019] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Yang BL, Hong F, Kung HH. Crystallite size effect in the selective oxidation of butene to butadiene on iron oxide. 2. Reaction studies. ACTA ACUST UNITED AC 2002. [DOI: 10.1021/j150656a020] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Nilvebrant NO, Reimann A, de Sousa F, Larsson S, Cassland P, Hong F, Jönsson L. Enzymatic degradation of oxalic acid for prevention of scaling. Progress in Biotechnology 2002. [DOI: 10.1016/s0921-0423(02)80025-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Hong F, Win KY, Pehkonen SO. Hydrolysis of terbufos using simulated environmental conditions: rates, mechanisms, and product analysis. J Agric Food Chem 2001; 49:5866-5873. [PMID: 11743776 DOI: 10.1021/jf010339k] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
This study focuses on the hydrolysis of terbufos, an organophosphorus pesticide. Combining GC-MS and wet chemistry methods, di-tert-butyl disulfide and formaldehyde were identified and quantified as major degradation products. Diethyl dithiophosphate was also indirectly identified as a degradation product under alkaline conditions. Hydrolysis rate constants of terbufos under homogeneous conditions were comparable to those of phorate and show relative insensitivity to pH under slightly acidic to neutral pH conditions, as the observed rate constants varied only in the range of (4.5-5.0) x 10(-6) s(-1) between pH 5.7 and 9.4; neutral hydrolysis is thus the most dominant hydrolysis pathway of terbufos in ambient waters. The mechanisms for terbufos hydrolysis and the formation of the major products and their temporal profiles are discussed. To assess the environmental impact of degradation products of this widely used pesticide, Microtox was used to analyze the toxicity of terbufos and two of its degradation products: diethyl dithiophosphate and di-tert-butyl disulfide; the EC(50) of terbufos was found to be >17 microM, whereas the EC(50) of di-tert-butyl disulfide was 1.3 microM.
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Affiliation(s)
- F Hong
- Department of Civil and Environmental Engineering, University of Cincinnati, Cincinnati, Ohio 45221-0071, USA
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