10 results on '"Chengmei Li"'
Search Results
2. Enhancing HIV Testing and Treatment among Men Who Have Sex with Men in China: A Pilot Model with Two-Rapid Tests, Single Blood Draw Session, and Intensified Case Management in Six Cities in 2013.
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Dapeng Zhang, Hongyan Lu, Minghua Zhuang, Guohui Wu, Hongjing Yan, Jun Xu, Xiaoli Wei, Chengmei Li, Sining Meng, Xiaojing Fu, Jinlei Qi, Peng Wang, Mei Luo, Min Dai, Ray Yip, Jiangping Sun, and Zunyou Wu
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Medicine ,Science - Abstract
To explore models to improve HIV testing, linkage to care and treatment among men who have sex with men (MSM) in cooperation with community-based organizations (CBOs) in China.We introduced a new model for HIV testing services targeting MSM in six cities in 2013.These models introduced provision of rapid HIV testing by CBO staff and streamlined processes for HIV screening, confirmation of initial reactive screening results, and linkage to care among diagnosed people. We monitored attrition along each step of the continuum of care from screening to treatment and compared program performance between 2012 and 2013. According to the providers of two rapid tests (HIV screening), four different services delivery models were examined in 2013: Model A = first screen at CDC, second at CDC (Model A = CDC+CDC), Model B = first and second screens at CBOs (Model B = CBO+CBO), Model C = first screen at CBO, second at Hospital (Model C = CBO+Hosp), and Model D = first screen at CBO, second at CDC (Model D = CBO+CDC). Logistic regressions were performed to assess advantages of different screening models of case finding and case management.Compared to 2012, the number of HIV screening tests performed for MSM increased 35.8% in 2013 (72,577 in 2013 vs. 53,455 in 2012). We observed a 5.6% increase in proportion of cases screened reactive receiving HIV confirmatory tests (93.9% in 2013 vs. 89.2% in 2012, χ2 = 48.52, p
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- 2016
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3. High risks of HIV transmission for men who have sex with men--a comparison of risk factors of HIV infection among MSM associated with recruitment channels in 15 cities of China.
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Jinlei Qi, Dapeng Zhang, Xiaojing Fu, Chengmei Li, Sining Meng, Min Dai, Hui Liu, and Jiangping Sun
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Medicine ,Science - Abstract
While the HIV epidemic varies greatly by region and population group throughout China, the HIV incidence among men who have sex with men (MSM) continues to rise at an alarmingly fast pace. We seek to analyze the risk factors associated with HIV infection among MSM recruited from different channels in large urban centers across China, in an attempt to shed light on the design of future targeted intervention strategies.A total of 33,684 MSM from 14 cities and one province were recruited from July to December 2011. Demographic (e.g. age, marital status, education) and behavioral (e.g. condom use, HIV testing history) data were collected using information collection cards. Blood samples were also collected to test for HIV and Syphilis.Participants were recruited from five different channels, and all demonstrated distinct characteristics. The overall rate of positive HIV screening was 6.27% and the rate of syphilis infection was 6.50%. Participants recruited from bathhouses had the highest HIV (11.80%) and syphilis infection rates (11.20%). Participants who were infected with syphilis had the highest HIV-positive screening rate (13.75%; 95% CI OR, 2.33-3.06). living in the southwest region of the country (11.64%; OR=2.76, 95%CI OR 2.19-3.47), Being >20 years of age (P
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- 2015
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4. Experience of offering HIV rapid testing to at-risk patients in community health centers in eight Chinese cities.
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Dapeng Zhang, Sining Meng, Peng Xu, Hongyan Lu, Minghua Zhuang, Guohui Wu, Yanling Liu, Xiaohong Pan, Hongjing Yan, Xi Chen, Lirui Fan, Chengmei Li, Xiaojing Fu, Jinlei Qi, Lei Han, Fuchang Ma, Fan Lv, and Jiangping Sun
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Medicine ,Science - Abstract
OBJECTIVE: To explore the feasibility of offering HIV counseling and testing in community health centers (CHCs) and to provide evidence for the HIV/AIDS response in China. METHODS: Forty-two CHCs were selected from the eight cities that participated in the study. Rapid testing was mainly provided to: clients seeking HIV testing and counseling (HTC); outpatients with high-risk behavior of contracting HIV; inpatients and outpatients of key departments. Aggregate administrative data were collected in CHCs and general hospitals and differences between the two categories were compared. RESULTS: There were 23,609 patients who underwent HIV testing, accounting for 0.37% of all estimated clinic visits at the 42 sites (0.03%-4.35% by site). Overall, positive screening prevalence was 0.41% (95% confidence interval [CI] 0.33%-0.49%, range 0.00%-0.98%), which is higher than in general hospitals (0.17%). The identification efficiency was 0.22% (95% CI: 0.16%-0.27%) in pilot CHCs, 3.5 times higher than in general hospitals (0.06%) (Chi square test = 95.196, p
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- 2014
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5. Bacterial lysate treatment in allergic disease: A systematic review and meta‐analysis
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Wei Zhang, Datian Che, Chengmei Li, and Hua Zhou
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Cell Extracts ,Allergy ,medicine.medical_specialty ,Immunology ,Eczema ,Disease ,Dermatitis, Atopic ,law.invention ,rhinitis ,Randomized controlled trial ,law ,Internal medicine ,medicine ,Humans ,Immunology and Allergy ,Adverse effect ,bacterial lysate ,Randomized Controlled Trials as Topic ,dermatitis ,Asthma ,treatment ,biology ,business.industry ,Original Articles ,Atopic dermatitis ,asthma ,medicine.disease ,Rhinitis, Allergic ,Others ,Meta-analysis ,Pediatrics, Perinatology and Child Health ,biology.protein ,Original Article ,Antibody ,business - Abstract
Objective The aim of this review was to assess the efficacy of bacterial lysate treatment in patients with allergic disease. Method Randomized controlled trials (RCTs) of bacterial lysate therapy for patients with allergic diseases (asthma, atopic dermatitis, and allergic rhinitis) were searched using PubMed, EMBASE, Cochrane, China National Knowledge Infrastructure, Chinese Biomedical literature, and Wanfang databases up to March 2020. Based on the guidelines of the Cochrane collaboration, risk of bias was assessed. Results This meta‐analysis based on 19 studies comparing bacterial lysate‐treated patients with a control group showed a 24% (RR: 1.24, 95% CI [1.19, 1.30]) increase in improvement of allergy symptom control. In addition, the improvement of asthma symptom control was 22% (RR: 1.22, 95% CI [1.14, 1.26]) higher in the bacterial lysate treatment group. Moreover, the levels of immunoglobulin (IgA and IgG), T lymphocyte subtype (CD3+, CD4+, CD4+/CD8+, Th1), and cytokines (IFN‐γ, IL‐2, and IL‐12) were increased in the treated group compared with controls. There was no significant difference in adverse event rate between the two groups. Conclusion Treatment with bacterial lysate improves symptom control in patients with allergic diseases on the basis of routine therapy. No adverse risk was found in this meta‐analysis.
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- 2021
6. Author response for 'Bacterial lysate treatment in allergic disease: a systematic review and meta‐analysis'
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Wei Zhang, Hua Zhou, Chengmei Li, and Datian Che
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business.industry ,Meta-analysis ,Immunology ,Medicine ,Disease ,Bacterial lysate ,business - Published
- 2021
7. In vivo effects of high dietary copper levels on hepatocellular mitochondrial respiration and electron transport chain enzymes in broilers
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Jiaqiang Pan, Jianying Guo, Zhaoxin Tang, Rongsheng Su, G. Hu, H. Cao, and Chengmei Li
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Male ,0301 basic medicine ,Cellular respiration ,Cell Respiration ,chemistry.chemical_element ,Mitochondrion ,Biology ,Electron Transport ,Random Allocation ,03 medical and health sciences ,Animal science ,Respiration ,medicine ,Animals ,Dry matter ,Dose-Response Relationship, Drug ,Copper toxicity ,0402 animal and dairy science ,Broiler ,04 agricultural and veterinary sciences ,General Medicine ,medicine.disease ,Animal Feed ,040201 dairy & animal science ,Copper ,Diet ,Mitochondria ,030104 developmental biology ,Liver ,Biochemistry ,chemistry ,Dietary Supplements ,Toxicity ,Female ,Animal Science and Zoology ,Chickens ,Food Science - Abstract
The diet of broiler chickens supplemented with increasing concentrations of copper (Cu) was assessed for the effect of Cu on liver mitochondrial function. A total of 160, 1-d-old Cobb 500 broilers (Gallus domesticus) were randomly assigned in equal numbers into 4 groups, which differed in the concentration of copper supplements in the diet; 11 (control), 110, 220 and 330 mg of Cu/kg dry matter. Liver mitochondrial function was recorded at 12, 24, 36, 48 and 60 d of age. Supplementation with 110 mg Cu/kg dry matter enhanced mitochondrial function and activities of complexes I-V, and this was significant at 36 d of age compared with the other diets (P 0.05). Supplementation with 220 mg Cu/kg dry matter and 330 mg Cu/kg dry matter enhanced mitochondrial function and activities of complexes I-V at 12, 24 and 36 d of age, but displayed reduced function (P 0.05) at 48 and 60 d of age except in complex IV (P 0.05). Mitochondrial hydrogen peroxide (H2O2) production was also increased (P 0.05) with an increase of copper supplementation in the diet. The results indicate that appropriate dietary copper supplements are sufficient for improving mitochondrial function and activities of the respiratory complexes. Higher concentrations of copper, on the other hand, lead to copper toxicity by affecting certain respiratory complexes.
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- 2016
8. The Protective Roles of Selenium on Hepatic Tissue Ultrastructure and Mitochondrial Antioxidant Capacity in Copper-Overloaded Rats
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Chengmei Li, Jiaqiang Pan, Yizhou Chen, Rongsheng Su, Zhaoxin Tang, and Huabin Cao
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Male ,medicine.medical_specialty ,Endocrinology, Diabetes and Metabolism ,Clinical Biochemistry ,chemistry.chemical_element ,Mitochondria, Liver ,Mitochondrion ,Biology ,Protective Agents ,Biochemistry ,Antioxidants ,Rats, Sprague-Dawley ,Inorganic Chemistry ,Selenium ,chemistry.chemical_compound ,Sodium Selenite ,Microscopy, Electron, Transmission ,Malondialdehyde ,Internal medicine ,medicine ,Animals ,Melanins ,Glutathione Peroxidase ,Superoxide Dismutase ,Endoplasmic reticulum ,Biochemistry (medical) ,Copper toxicity ,General Medicine ,Catalase ,medicine.disease ,Glutathione Reductase ,medicine.anatomical_structure ,Endocrinology ,Liver ,chemistry ,Hepatocyte ,Toxicity ,Hepatocytes ,Ultrastructure ,Lipid Peroxidation ,Copper - Abstract
The aim of this study was to explore the effects of selenium addition on hepatic tissue ultrastructure and mitochondrial antioxidant capacity in copper-overloaded rats. Eighteen adult male Sprague-Dawley (SD) rats were randomly divided into three groups (n = 6 per group). Each group received 1 mL (intragastrically) of water (control, group I) or water containing copper chloride (CuCl2, 1 mol/L) (group II) or a mixture of CuCl2 (1 mol/L) with sodium selenite (Na2SeO3, 0.05 mol/L) (group III) once daily for 30 days. Histological examination revealed normal hepatocyte structure and no ultrastructural changes in mitochondria in controls. In contrast, group II exhibited severe ultrastructural alterations, fuzzy mitochondrial membranes, irregularly shaped and fragmented rough endoplasmic reticulum (RER), and the high melanin content; group III also exhibited larger amounts of engulfing vesicles (EV) in the cytoplasm. Compared to controls, the CuCl2 treatment lowered (P
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- 2015
9. High copper levels promotes broiler hepatocyte mitochondrial permeability transition in vivo and in vitro
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Lijun Chen, Rongsheng Su, Huabin Cao, Dayou Shi, Jiaqiang Pan, Zhaoxin Tang, Rongmei Wang, and Chengmei Li
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Copper Sulfate ,Endocrinology, Diabetes and Metabolism ,Clinical Biochemistry ,chemistry.chemical_element ,Mitochondria, Liver ,Biochemistry ,Permeability ,Inorganic Chemistry ,chemistry.chemical_compound ,Methionine ,In vivo ,medicine ,Organometallic Compounds ,Animals ,Models, Statistical ,Dose-Response Relationship, Drug ,Chemistry ,Biochemistry (medical) ,Broiler ,Ceruloplasmin ,General Medicine ,Hydrogen Peroxide ,Copper ,Dose–response relationship ,medicine.anatomical_structure ,Mitochondrial permeability transition pore ,Permeability (electromagnetism) ,Hepatocyte ,Hepatocytes ,Indicators and Reagents ,Chickens ,Nuclear chemistry - Abstract
This study was to examine the effects of copper on the mitochondrial non-specific pore. Three hundred sixty, one-day-old, healthy Arbor Acres (AA) broilers were fed with different concentrations (11, 110, 220, and 330 mg/kg) of copper originated from copper sulfate, tribasic copper chloride (TBCC), or copper methionine. At the indicated time point, the mitochondrial permeability transition (MPT) and copper concentration were analyzed. Results showed that under the same copper concentration, the MPT of broilers fed copper methionine was the greatest, followed by TBCC, then copper sulfate. The effects of copper on MPT were time- and dose-dependent. Furthermore, in vitro in the presence of K(+), 5 μM Cu(2+) could cause permeability transition as compared to 10 μM Cu(2+) in buffer without K(+). Taking these results together, we have shown that hepatocellular MPT may be influenced not only by source and concentration of copper or the raising period of broilers, but also by the existence of K(+).
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- 2010
10. The Profile and Bioaccessibility of Phenolic Compounds in Cereals Influenced by Improved Extrusion Cooking Treatment.
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Zicong Zeng, Chengmei Liu, Shunjing Luo, Jun Chen, and Ersheng Gong
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Medicine ,Science - Abstract
The aim of this study was to investigate the effect of Improved Extrusion Cooking Treatment (IECT) on the phenolics and its bioaccessibility in cereals, represented by brown rice, wheat, and oat. Data showed that total phenolic content and total antioxidant activity in free form were significantly decreased, while the bound form was increased after IECT. After IECT, the total free phenolic acids of brown rice and wheat were significantly decreased by 5.88% and 45.66%, respectively, while the total bound phenolic acids of brown rice, wheat, and oat were significantly increased by 6.45%, 8.78%, and 9.10%, respectively. Brown rice provided the most bioaccessible phenolics and antioxidant compounds, followed by oat and wheat. IECT significantly decreased the bioaccessible phenolics of brown rice and oat by 31.09% and 30.95%, while it had minimal effect on the bioaccessible phenolics of wheat. These results showed that IECT greatly affected the phenolics and its bioaccessibiltiy of cereals, with the effect depending on cereal matrix and the sensitivity of free and bound phenolics. Furthermore, bioaccessible phenolic acids of raw and processed cereals were considerably low, and it slightly contributed to the bioaccessible phenolics.
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- 2016
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