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Chen HM, Zhou Q, Huang LJ, Lin J, Liu JF, Huang ZY, Zhang RL, Wang JJ, Zhao Y, Wu YN, Yang XF, Wu WL. Curcumin-mediated photodynamic treatment extends the shelf life of salmon (Salmo salar) sashimi during chilled storage: Comparisons of preservation effects with five natural preservatives. Food Res Int 2023; 173:113325. [PMID: 37803636 DOI: 10.1016/j.foodres.2023.113325] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Revised: 07/24/2023] [Accepted: 07/25/2023] [Indexed: 10/08/2023]
Abstract
The impact of curcumin-mediated photodynamic treatment (PDT) on the microbiological, physicochemical and sensory qualities of salmon sashimi has not been explored. Herein, this study aimed to evaluate the effects of PDT on the shelf-life quality of ready-to-eat salmon fillets during chilled storage (4 °C) in comparison with five widely investigated natural extracts, including cinnamic aldehyde, rosmarinic acid, chlorogenic acid, dihydromyricetin and nisin. From a microbial perspective, PDT exhibited outstanding bacterial inhibition, the results of total viable counts, total coliform bacteria, psychrotrophic bacteria, Pseudomonas spp., Enterobacteriaceae family, and H2S-producing bacteria were notably inactivated (p < 0.05) to meet the acceptable limits by PDT in comparison with those of the control group and natural origin groups, which could extend the shelf-life of salmon fillets from<6 days to 10 days. In the alteration of physicochemical indicators, PDT and natural extracts were able to maintain the pH value and retard lipid oxidation in salmon fillets, while apparently slowing the accumulation (p < 0.05) of total volatile basic nitrogen and biogenic amines, especially the allergen histamine, which contrary to with the variation trend of spoilage microbiota. In parallel, PDT worked effectively (p < 0.05) on the breakdown of adenosine triphosphate and adenosine diphosphate to maintain salmon fillet freshness. Additionally, the physical indicators of texture profile and color did not have obvious changes (p < 0.05) after treated by PDT during the shelf life. Besides, the sensory scores of salmon samples were also significantly improved. In general, PDT not only has a positive effect on organoleptic indicators but is also a potential antimicrobial strategy for improving the quality of salmon sashimi.
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Affiliation(s)
- Hui-Ming Chen
- Food Safety and Health Research Center, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou 510515, PR China
| | - Quan Zhou
- College of Food Science, South China Agricultural University, Guangzhou 510642, PR China
| | - Li-Jun Huang
- Food Safety and Health Research Center, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou 510515, PR China
| | - Jun Lin
- Huadu District Center for Disease Control and Prevention, Guangzhou 510803, PR China
| | - Jia-Fei Liu
- Waters Technologies (Shanghai) Limited, Shanghai 200080, PR China
| | - Zi-Yong Huang
- Waters Technologies (Shanghai) Limited, Shanghai 200080, PR China
| | - Rong-Lin Zhang
- Guangxi-Asean Food Inspection Center, Nanning 530007, PR China
| | - Jing-Jing Wang
- School of Food Science and Engineering, Foshan University, Foshan 528225, PR China
| | - Yong Zhao
- College of Food Sciences & Technology, Shanghai Ocean University, Shanghai 201306, PR China
| | - Yong-Ning Wu
- Food Safety and Health Research Center, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou 510515, PR China; National Center for Food Safety Risk Assessment, Key Laboratory of Food Safety Risk Assessment, Ministry of Health, Beijing 100021, PR China
| | - Xing-Fen Yang
- Food Safety and Health Research Center, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou 510515, PR China.
| | - Wei-Liang Wu
- Food Safety and Health Research Center, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou 510515, PR China.
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Wu WL, Gan XT, Li BC, Zhang YH, Liao YM, Lin WT, Liu XQ, Chen J. [Measuring and analysis of the shoulder circumferences of 840 adults' permanent teeth crown preparations]. Zhonghua Kou Qiang Yi Xue Za Zhi 2023; 58:422-426. [PMID: 37082845 DOI: 10.3760/cma.j.cn112144-20230209-00038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Subscribe] [Scholar Register] [Indexed: 04/22/2023]
Abstract
Objective: To measure and analyze the shoulder circumferences of adults' permanent teeth crown preparations based on data collected through the intraoral scanning, so as to provide dental anatomy data for clinical diagnosis and analysis. Methods: Intraoral scanning data of 840 complete crown preparations were collected, and were entrusted to the World Dental Laboratory Co., Ltd. in Fuzhou between March 2021 and June 2022. Except the data of the third molar, the rest data were categorized in terms of 14 tooth positions in the upper and lower jaw (each category involved 30 samples from male group and 30 samples from female group). Image measurement software was used to measure the shoulder circumferences of permanent teeth crown preparations. And analysis was conducted to reveal the difference of shoulder circumference diameters between male and female groups. And then they were grouped according to the mean value at each tooth position, on the premise that the difference between the maximum and minimum values and the mean value of the entire group was≤±1.00 mm. Analysis were further conducted to determine the differences of shoulder circumference diameters between each dental position and the differences between male and female in the same groups. Results: Bivariate analysis of variance showed that gender had no effect on the shoulder circumference of full crown preparations (F=0.55, P=1.457), while tooth position had a significant impact on the shoulder circumference of full crown preparations (F=273.15, P<0.001). The samples were classified into 5 groups according to the mean values of shoulder circumference diameters relating to each tooth position. Statistical analysis showed that Group 1, covering maxillary lateral incisor, mandibular central incisor and mandibular lateral incisor, had shoulder circumference with diameters of (16.62±2.21) mm; Group 2, consisting of maxillary central incisor, maxillary cusp, mandibular cusp, mandibular first premolar and mandibular second premolar, had diameters of (20.78±2.48) mm; Group 3, consisting of maxillary first premolar and maxillary second premolar, had diamerters of (22.09±2.72) mm; Group 4, covering maxillary first molar, maxillary second molar and mandibular first molar, had diamerters of (30.21±2.67) mm; while group 5, with mandibular second molar alone its member, had diamerters of (31.34±3.18) mm. The difference among the 5 groups was statistically significant (P<0.05). Conclusions: Significant differences of shoulder circumference diameters could be found between different tooth positions, while at the same tooth position, the differences between male and female are not significant. The 14 tooth positions could be grouped into 5 groups according to their shoulder circumference diameters. Future research could take the grouping as reference.
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Affiliation(s)
- W L Wu
- Department of Oral Implantology, School and Hospital of Stomatology, Fujian Medical University & Fujian Key Laboratory of Oral Diseases & Fujian Provincial Engineering Research Center of Oral Biomaterial & Stomatological Key Laboratory of Fujian College and University & Institute of Stomatology, Fujian Medical University & Research Center of Dental and Craniofacial Implants, Fujian Medical University, Fuzhou 350002, China
| | - X T Gan
- School of Stomatology, Fujian Medical University, Fuzhou 350002, China
| | - B C Li
- School of Stomatology, Fujian Medical University, Fuzhou 350002, China
| | - Y H Zhang
- School of Stomatology, Fujian Medical University, Fuzhou 350002, China
| | - Y M Liao
- School of Stomatology, Fujian Medical University, Fuzhou 350002, China
| | - W T Lin
- School of Stomatology, Fujian Medical University, Fuzhou 350002, China
| | - X Q Liu
- Department of Prosthodontics, Peking University School and Hospital of Stomatology & National Center for Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - J Chen
- Department of Oral Implantology, School and Hospital of Stomatology, Fujian Medical University & Fujian Key Laboratory of Oral Diseases & Fujian Provincial Engineering Research Center of Oral Biomaterial & Stomatological Key Laboratory of Fujian College and University & Institute of Stomatology, Fujian Medical University & Research Center of Dental and Craniofacial Implants, Fujian Medical University, Fuzhou 350002, China
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Xiong L, Fan C, Song J, Wan Y, Lin X, Su Z, Qiu J, Wu W, He Z, Wu Y, Yang X. Associations of long-term cadmium exposure with peripheral white blood cell subtype counts and indices in residents of cadmium-polluted areas. Chemosphere 2022; 308:135946. [PMID: 36007735 DOI: 10.1016/j.chemosphere.2022.135946] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Revised: 07/29/2022] [Accepted: 08/01/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND Experimental evidence suggests that exposure to cadmium (Cd) could affect immune cells in vivo and in vitro. However, the associations of long-term Cd exposure with white blood cell (WBC) subtype counts and hemogram-derived indices have been rarely investigated. Therefore, we evaluated these relationships in residents of cadmium-polluted areas. METHODS This cross-sectional study included 431 participants aged 45-75 years without occupational exposure histories from Cd-contaminated areas of southern China. We detected WBC, neutrophil, lymphocyte, and monocyte counts using routine blood tests and calculated neutrophil-lymphocyte ratio (NLR), systemic inflammation response index (SIRI), and lymphocyte-monocyte ratio (LMR). Urinary Cd (U-Cd) was measured with inductively coupled plasma mass spectrometry and adjusted for creatinine. To evaluate the associations of U-Cd with peripheral WBC subtype counts and indices, we performed multivariate linear regression, logistic regression and subgroup analyses using U-Cd categorized into quartiles. RESULTS In models adjusted for all potential confounders, U-Cd was negatively associated with WBC, neutrophil, and monocyte counts in Q2, compared with Q1 of U-Cd (p < 0.05). A similar relationship was observed between U-Cd and NLR and SIRI, whereas the corresponding association for LMR was positive (p < 0.05). In subgroup analyses, U-Cd was negatively associated with neutrophil count, except for never smokers, after full adjustment. CONCLUSIONS U-Cd was negatively associated with WBC count, neutrophil count, monocyte count, NLR, and SIRI, and positively associated with LMR. Therefore, neutrophil count could be a potential indicator of long-term Cd exposure-associated immunosuppressive effect.
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Affiliation(s)
- Lili Xiong
- Food Safety and Health Research Center, Guangdong Provincial Key Laboratory of Tropical Disease Research, Guangdong-Hongkong-Macao Joint Laboratory for Contaminants Exposure and Health, School of Public Health, Southern Medical University, Guangzhou, Guangdong, 510000, China
| | - Cuihua Fan
- Food Safety and Health Research Center, Guangdong Provincial Key Laboratory of Tropical Disease Research, Guangdong-Hongkong-Macao Joint Laboratory for Contaminants Exposure and Health, School of Public Health, Southern Medical University, Guangzhou, Guangdong, 510000, China
| | - Jia Song
- Food Safety and Health Research Center, Guangdong Provincial Key Laboratory of Tropical Disease Research, Guangdong-Hongkong-Macao Joint Laboratory for Contaminants Exposure and Health, School of Public Health, Southern Medical University, Guangzhou, Guangdong, 510000, China
| | - Yu Wan
- Food Safety and Health Research Center, Guangdong Provincial Key Laboratory of Tropical Disease Research, Guangdong-Hongkong-Macao Joint Laboratory for Contaminants Exposure and Health, School of Public Health, Southern Medical University, Guangzhou, Guangdong, 510000, China
| | - Xiuqin Lin
- Food Safety and Health Research Center, Guangdong Provincial Key Laboratory of Tropical Disease Research, Guangdong-Hongkong-Macao Joint Laboratory for Contaminants Exposure and Health, School of Public Health, Southern Medical University, Guangzhou, Guangdong, 510000, China
| | - Zujian Su
- Guangdong Provincial Center for Disease Control and Prevention, Guangzhou, Guangdong, 510000, China
| | - Jianmin Qiu
- The Fifth Affiliated Hospital, Southern Medical University, Guangzhou, Guangdong, 510000, China
| | - WeiLiang Wu
- Food Safety and Health Research Center, Guangdong Provincial Key Laboratory of Tropical Disease Research, Guangdong-Hongkong-Macao Joint Laboratory for Contaminants Exposure and Health, School of Public Health, Southern Medical University, Guangzhou, Guangdong, 510000, China
| | - Zhini He
- Food Safety and Health Research Center, Guangdong Provincial Key Laboratory of Tropical Disease Research, Guangdong-Hongkong-Macao Joint Laboratory for Contaminants Exposure and Health, School of Public Health, Southern Medical University, Guangzhou, Guangdong, 510000, China
| | - Yongning Wu
- Food Safety and Health Research Center, Guangdong Provincial Key Laboratory of Tropical Disease Research, Guangdong-Hongkong-Macao Joint Laboratory for Contaminants Exposure and Health, School of Public Health, Southern Medical University, Guangzhou, Guangdong, 510000, China; NHC Key Laboratory of Food Safety Risk Assessment, Food Safety Research Unit (2019RU014) of Chinese Academy of Medical Science, China National Center for Food Safety Risk Assessment, Beijing, 100021, China.
| | - Xingfen Yang
- Food Safety and Health Research Center, Guangdong Provincial Key Laboratory of Tropical Disease Research, Guangdong-Hongkong-Macao Joint Laboratory for Contaminants Exposure and Health, School of Public Health, Southern Medical University, Guangzhou, Guangdong, 510000, China.
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Liao YT, Chen WX, Zhu HX, Wu WL, Peng BW, Zuo YL, Zhuo MQ, Chen ZZ, Shen HL, Li XJ. [A case of infantile anti-AMPA2 receptor encephalitis]. Zhonghua Er Ke Za Zhi 2022; 60:1207-1209. [PMID: 36319159 DOI: 10.3760/cma.j.cn112140-20220601-00502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Affiliation(s)
- Y T Liao
- Department of Pediatric Neurology, Guangzhou Women and Children's Medical Center, Guangzhou 510120, China
| | - W X Chen
- Department of Pediatric Neurology, Guangzhou Women and Children's Medical Center, Guangzhou 510120, China
| | - H X Zhu
- Department of Pediatric Neurology, Guangzhou Women and Children's Medical Center, Guangzhou 510120, China
| | - W L Wu
- Department of Pediatric Neurology, Guangzhou Women and Children's Medical Center, Guangzhou 510120, China
| | - B W Peng
- Department of Pediatric Neurology, Guangzhou Women and Children's Medical Center, Guangzhou 510120, China
| | - Y L Zuo
- Pediatric Intensive Care Unit, Guangzhou Women and Children's Medical Center, Guangzhou 510120, China
| | - M Q Zhuo
- Department of Pediatric Neurology, Guangzhou Women and Children's Medical Center, Guangzhou 510120, China
| | - Z Z Chen
- Department of Pediatric Neurology, Guangzhou Women and Children's Medical Center, Guangzhou 510120, China
| | - H L Shen
- Department of Pediatric Neurology, Guangzhou Women and Children's Medical Center, Guangzhou 510120, China
| | - X J Li
- Department of Pediatric Neurology, Guangzhou Women and Children's Medical Center, Guangzhou 510120, China
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Wu WL, Shao XB, Shen YG, Chen JS, Shu Q. Sex-specific differences in ossification patterns of the atlas and axis: a computed tomography study. World J Pediatr 2022; 18:263-270. [PMID: 35217985 DOI: 10.1007/s12519-022-00523-7] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Accepted: 01/25/2022] [Indexed: 11/28/2022]
Abstract
BACKGROUND We investigated the sex-specific differences in ossification patterns of the first two cervical vertebrae in Chinese children. METHODS A retrospective computed tomography (CT) study was performed between June 2016 and December 2020. Patients younger than 16 years with cervical CT images acquired ≤ 1.5 mm slice thickness were included. All eligible patients were stratified into 2 sex groups and 16 age groups based on 1-year intervals. The ossification status of each synchondrosis and ossification variants were evaluated. RESULTS A total of 910 subjects (518 males and 392 females) were included in the study. For the C1 vertebra, the neurocentral synchondroses closed at a median age of 8 years in males and 6.3 years in females, and the posterior synchondrosis fused at 5.4 years in males and at 4.4 years in females. Multifocal anterior arch ossification centers were present in 74 of 411 (18%) subjects, whereas posterior arch variants were observed in 18 of 258 (7%) subjects. For the C2 vertebra, the sequence of complete fusion was as follows: posterior synchondrosis, neurocentral synchondroses, and dentoneural synchondrosis. Uniquely, a fusion line was observed in the dentocentral synchondrosis through adolescence. Anterior arch variants of the C2 vertebra occurred in 17 of 248 (6.9%) subjects. There was no significant difference between the sexes in ossification variants. CONCLUSIONS All synchondroses of the first two cervical vertebrae fuse slightly earlier in females. The sequence of fusion follows a posterior-to-anterior and caudal-to-cephalad pattern in both sexes. Congenital variants are not rare and should not be confused with trauma.
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Affiliation(s)
- Wei-Liang Wu
- Department of Orthopedic Surgery, Children's Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Xiao-Bo Shao
- Department of Orthopedic Surgery, Children's Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Yi-Guo Shen
- Department of Orthopedic Surgery, Children's Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Jian-Song Chen
- Department of Orthopedic Surgery, Children's Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Qiang Shu
- Department of Cardiac Surgery, Children's Hospital, Zhejiang University School of Medicine, Administrative Building, No. 3333 Binsheng Road, Hangzhou 310052, China.
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Yan MD, Ou YJ, Lin YJ, Liu RM, Fang Y, Wu WL, Zhou L, Yao X, Chen J. Does the incorporation of strontium into calcium phosphate improve bone repair? A meta-analysis. BMC Oral Health 2022; 22:62. [PMID: 35260122 PMCID: PMC8905839 DOI: 10.1186/s12903-022-02092-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Accepted: 02/21/2022] [Indexed: 12/09/2022] Open
Abstract
Background The application of calcium phosphate (CaP)-based bone substitutes plays an important role in periodontal regeneration, implant dentistry and alveolar bone reconstruction. The incorporation of strontium (Sr) into CaP-based bone substitutes appears to improve their biological properties, but the reported in vivo bone repair performance is inconsistent among studies. Herein, we conducted a systematic review and meta-analysis to investigate the in vivo performance of Sr-doped materials. Methods We searched PubMed, EMBASE (via OVIDSP), and reference lists to identify relevant animal studies. The search, study selection, and data extraction were performed independently by two investigators. Meta-analyses and sub-group analyses were conducted using Revman version 5.4.1. The heterogeneity between studies were assessed by I2. Publication bias was investigated through a funnel plot. Results Thirty-five studies were finally enrolled, of which 16 articles that reported on new bone formation (NBF) were included in the meta-analysis, covering 31 comparisons and 445 defects. The overall effect for NBF was 2.25 (95% CI 1.61–2.90, p < 0.00001, I2 = 80%). Eight comparisons from 6 studies reported the outcomes of bone volume/tissue volume (BV/TV), with an overall effect of 1.42 (95% CI 0.65–2.18, p = 0.0003, I2 = 75%). Fourteen comparisons reported on the material remaining (RM), with the overall effect being -2.26 (95% CI − 4.02 to − 0.50, p = 0.0009, I2 = 86%). Conclusions Our study revealed that Sr-doped calcium phosphate bone substitutes improved in vivo performance of bone repair. However, more studies are also recommended to further verify this conclusion. Supplementary Information The online version contains supplementary material available at 10.1186/s12903-022-02092-7.
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Affiliation(s)
- Ming-Dong Yan
- Fujian Key Laboratory of Oral Diseases and Fujian Provincial Engineering Research Center of Oral Biomaterial and Stomatological Key Laboratory of Fujian College and University, School and Hospital of Stomatology, Fujian Medical University, Fuzhou, 350002, China
| | - Yan-Jing Ou
- Fujian Key Laboratory of Oral Diseases and Fujian Provincial Engineering Research Center of Oral Biomaterial and Stomatological Key Laboratory of Fujian College and University, School and Hospital of Stomatology, Fujian Medical University, Fuzhou, 350002, China.,Department of Oral Implantology, Affiliated Stomatological Hospital of Fujian Medical University, Fuzhou, 350002, China
| | - Yan-Jun Lin
- Fujian Key Laboratory of Oral Diseases and Fujian Provincial Engineering Research Center of Oral Biomaterial and Stomatological Key Laboratory of Fujian College and University, School and Hospital of Stomatology, Fujian Medical University, Fuzhou, 350002, China
| | - Rui-Min Liu
- ORAL Center, Fujian Provincial Governmental Hospital (Affiliated Hospital of Fujian Health College), Fuzhou, 350003, China
| | - Yan Fang
- Fujian Provincial Key Laboratory of Polymer Materials, College of Chemistry and Materials Science, Fujian Normal University, Fuzhou, 350007, China
| | - Wei-Liang Wu
- Fujian Key Laboratory of Oral Diseases and Fujian Provincial Engineering Research Center of Oral Biomaterial and Stomatological Key Laboratory of Fujian College and University, School and Hospital of Stomatology, Fujian Medical University, Fuzhou, 350002, China
| | - Lin Zhou
- Fujian Key Laboratory of Oral Diseases and Fujian Provincial Engineering Research Center of Oral Biomaterial and Stomatological Key Laboratory of Fujian College and University, School and Hospital of Stomatology, Fujian Medical University, Fuzhou, 350002, China
| | - Xiu Yao
- Fujian Key Laboratory of Oral Diseases and Fujian Provincial Engineering Research Center of Oral Biomaterial and Stomatological Key Laboratory of Fujian College and University, School and Hospital of Stomatology, Fujian Medical University, Fuzhou, 350002, China.,Institute of Stomatology and Research Center of Dental and Craniofacial Implants, School and Hospital of Stomatology, Fujian Medical University, Fuzhou, China
| | - Jiang Chen
- Fujian Key Laboratory of Oral Diseases and Fujian Provincial Engineering Research Center of Oral Biomaterial and Stomatological Key Laboratory of Fujian College and University, School and Hospital of Stomatology, Fujian Medical University, Fuzhou, 350002, China.
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Xu FF, Song J, Li YQ, Lai YF, Lin J, Pan JL, Chi HQ, Wang Y, Li ZY, Zhang GQ, Cai ZF, Liang XX, Ma AD, Tan CT, Wu WL, Yang XF. Bioaccessibility and bioavailability adjusted dietary exposure of cadmium for local residents from a high-level environmental cadmium region. J Hazard Mater 2021; 420:126550. [PMID: 34252664 DOI: 10.1016/j.jhazmat.2021.126550] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Revised: 06/13/2021] [Accepted: 06/29/2021] [Indexed: 05/22/2023]
Abstract
The critical health risks caused by cadmium (Cd) via dietary exposure are commonly assessed by detecting Cd concentrations in foods. Differently, in this study, the bioaccessibility and bioavailability of Cd in major local harvests were introduced to assess the dietary exposure of local residents from a high-level environmental Cd region. The results indicated that certain Cd was released into the digestive juice after in vitro digestion with a bioaccessibility of 20-63% for rice and 3-32% for leafy vegetables, and the released portion was partially absorbed by Caco-2 cells with a bioavailability of 2-21% for rice and 0.2-13% for leafy vegetables. The results obtained from the toxicokinetic model revealed that the predicted urinary Cd values from the estimated daily intake (EDI) of Cd, which accounted for bioaccessibility and bioavailability, were consistent with the actual measured values, and the EDIs were considerably lower than the acceptable daily intake. This suggests that the bioaccessibility and bioavailability adjusted dietary Cd exposure should be more precise. The key issues addressed in our study implores that a potential health risk cannot be neglected in people with high consumption of rice from high-level zone.
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Affiliation(s)
- Fei-Fei Xu
- Food Safety and Health Research Center, Guangdong Provincial Key Laboratory of Tropical Disease Research, Guangdong-Hongkong-Macao Joint Laboratory for Contaminants Exposure and Health, School of Public Health, Southern Medical University, Guangzhou 510515, PR China
| | - Jia Song
- Food Safety and Health Research Center, Guangdong Provincial Key Laboratory of Tropical Disease Research, Guangdong-Hongkong-Macao Joint Laboratory for Contaminants Exposure and Health, School of Public Health, Southern Medical University, Guangzhou 510515, PR China
| | - Yue-Qi Li
- Department of Preventive Medicine, Faculty of Medical Science, Jinan University, Guangzhou 510632, PR China
| | - Yue-Fei Lai
- Food Safety and Health Research Center, Guangdong Provincial Key Laboratory of Tropical Disease Research, Guangdong-Hongkong-Macao Joint Laboratory for Contaminants Exposure and Health, School of Public Health, Southern Medical University, Guangzhou 510515, PR China
| | - Jun Lin
- Food Safety and Health Research Center, Guangdong Provincial Key Laboratory of Tropical Disease Research, Guangdong-Hongkong-Macao Joint Laboratory for Contaminants Exposure and Health, School of Public Health, Southern Medical University, Guangzhou 510515, PR China
| | - Jia-Liang Pan
- Hygiene Detection Center, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou 510515, PR China
| | - Hui-Qin Chi
- Food Safety and Health Research Center, Guangdong Provincial Key Laboratory of Tropical Disease Research, Guangdong-Hongkong-Macao Joint Laboratory for Contaminants Exposure and Health, School of Public Health, Southern Medical University, Guangzhou 510515, PR China
| | - Yan Wang
- Department of Preventive Medicine, Faculty of Medical Science, Jinan University, Guangzhou 510632, PR China
| | - Zi-Yin Li
- Food Safety and Health Research Center, Guangdong Provincial Key Laboratory of Tropical Disease Research, Guangdong-Hongkong-Macao Joint Laboratory for Contaminants Exposure and Health, School of Public Health, Southern Medical University, Guangzhou 510515, PR China
| | - Gao-Qiang Zhang
- Department of Preventive Medicine, Faculty of Medical Science, Jinan University, Guangzhou 510632, PR China
| | - Zhan-Fan Cai
- Guangdong Institute of Food Inspection (Guangdong Inspection Center of Wine and Spirits), Guangzhou 510435, PR China
| | - Xu-Xia Liang
- Guangdong Institute of Food Inspection (Guangdong Inspection Center of Wine and Spirits), Guangzhou 510435, PR China
| | - An-De Ma
- Hygiene Detection Center, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou 510515, PR China
| | - Chu-Ting Tan
- Department of Nutrition, The Fifth Affiliated Hospital, Southern Medical University, Guangzhou 510900, PR China
| | - Wei-Liang Wu
- Food Safety and Health Research Center, Guangdong Provincial Key Laboratory of Tropical Disease Research, Guangdong-Hongkong-Macao Joint Laboratory for Contaminants Exposure and Health, School of Public Health, Southern Medical University, Guangzhou 510515, PR China.
| | - Xing-Fen Yang
- Food Safety and Health Research Center, Guangdong Provincial Key Laboratory of Tropical Disease Research, Guangdong-Hongkong-Macao Joint Laboratory for Contaminants Exposure and Health, School of Public Health, Southern Medical University, Guangzhou 510515, PR China.
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Zhou Q, Wu WL, Lin CQ, Liang H, Long CY, Lv F, Pan JL, Liu ZT, Wang BY, Yang XF, Deng XL, Jiang AM. Occurrence and dietary exposure assessment of pentachlorophenol in livestock, poultry, and aquatic foods marketed in Guangdong Province, China: Based on food monitoring data from 2015 to 2018. J Food Sci 2021; 86:1132-1143. [PMID: 33598948 DOI: 10.1111/1750-3841.15653] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [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: 08/16/2020] [Revised: 01/17/2021] [Accepted: 01/21/2021] [Indexed: 11/29/2022]
Abstract
As a persistent organic pollutant, pentachlorophenol (PCP) has serious impacts on human health. However, its presence in animal source food products sold in the Guangdong Province (GD) of China, and the resultant dietary exposure have not been elucidated. To address this gap, 3,100 samples from seven food categories, including beef, pork, mutton, offals, broilers, hen eggs, and farmed freshwater fish, marketed throughout four geographical regions of GD, were collected from 2015 to 2018. Gas chromatography coupled with mass spectrometry was employed to detect PCP levels in these food matrices. PCP was found in all food categories, but the average contamination levels were low, ranging from 0.40 µg/kg wet weight (ww) (hen eggs) to 5.85 µg/kg ww (offals). However, higher concentrations of PCP were detected (P < 0.05) in animal source food from the North region. Additionally, a temporal declining trend was observed in this four-year consecutive survey. The estimated human dietary exposure of PCP to population groups, including the general population and subgroups (male and female, children, and adults), was found to be far below the permissible daily intake (3 µg/kg body weight). Therefore, the health impacts of PCP should be correspondingly low for local residents, based on current toxicological knowledge. Regional exposure patterns varied due to different extents of contamination in the four areas, and pork, broilers, and freshwater fish were the major sources of dietary PCP exposure. PRACTICAL APPLICATION: As a persistent organic pollutant, pentachlorophenol (PCP) has serious impacts on human health. However, its presence in animal source food products sold in Guangdong Province of China, and the resultant dietary exposure have not been elucidated. In this study, we conducted an in-depth investigation on the occurrence of PCP in major foodstuff categories, including beef, pork, mutton, broilers, offals, hen eggs, and farmed freshwater fish, marketed in all 21 prefecture-level divisions of Guangdong Province, in order to provide integral insights for regulatory authorities.
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Affiliation(s)
- Quan Zhou
- College of Food Science, South China Agricultural University, Guangzhou, 510642, P. R. China
| | - Wei-Liang Wu
- Food Safety and Health Research Center, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou, 510515, P. R. China.,Institute of Nutrition and Food Safety, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou, 511430, P. R. China.,Academy of Preventive Medicine, Southern Medical University, Guangzhou, 510515, P. R. China
| | - Chang-Qin Lin
- Testing Department of Chemistry and Light Industry, Zhongshan Supervision Testing Institute of Quality & Metrology, Zhongshan, 528405, P. R. China
| | - Hui Liang
- Institute of Nutrition and Food Safety, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou, 511430, P. R. China.,Academy of Preventive Medicine, Southern Medical University, Guangzhou, 510515, P. R. China
| | - Chao-Yang Long
- Institute of Nutrition and Food Safety, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou, 511430, P. R. China.,Academy of Preventive Medicine, Southern Medical University, Guangzhou, 510515, P. R. China
| | - Fen Lv
- Institute of Nutrition and Food Safety, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou, 511430, P. R. China.,Academy of Preventive Medicine, Southern Medical University, Guangzhou, 510515, P. R. China
| | - Jia-Liang Pan
- Academy of Preventive Medicine, Southern Medical University, Guangzhou, 510515, P. R. China.,Department of Hygiene Detection Center, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou, 510515, P. R. China
| | - Zhi-Ting Liu
- Institute of Nutrition and Food Safety, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou, 511430, P. R. China.,Academy of Preventive Medicine, Southern Medical University, Guangzhou, 510515, P. R. China
| | - Bo-Yuan Wang
- Department of Public Health and Food Hygiene, Zhongshan Center for Disease Control and Prevention, Zhongshan, 528403, P. R. China
| | - Xing-Fen Yang
- Food Safety and Health Research Center, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou, 510515, P. R. China.,Academy of Preventive Medicine, Southern Medical University, Guangzhou, 510515, P. R. China
| | - Xiao-Ling Deng
- Institute of Nutrition and Food Safety, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou, 511430, P. R. China.,Academy of Preventive Medicine, Southern Medical University, Guangzhou, 510515, P. R. China
| | - Ai-Min Jiang
- College of Food Science, South China Agricultural University, Guangzhou, 510642, P. R. China
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Liang WJ, Wu DQ, Lyu ZJ, Hu WX, Wang JJ, Zheng JB, Yan Q, Wu WL, Cai GF, Yao XQ, Li Y. [Application of indocyanine green fluorescence proctoscope in rectal cancer surgery]. Zhonghua Wei Chang Wai Ke Za Zhi 2020; 23:1104-1105. [PMID: 33212561 DOI: 10.3760/cma.j.cn.441530-20191030-00466] [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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10
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Lyu ZJ, Liang WJ, Wu DQ, Hu WX, Wang JJ, Zheng JB, Yan Q, Wu WL, Cai GF, Yao XQ, Li Y. [Safety and feasibility of indocyanine green injection through accessory incision in laparoscopic right hemicolectomy]. Zhonghua Wei Chang Wai Ke Za Zhi 2020; 23:791-794. [PMID: 32810952 DOI: 10.3760/cma.j.cn.441530-20190715-00274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Objective: To explore the safety and feasibility of indocyanine green (ICG) injection through accessory incision in laparoscopic right hemicolectomy. Methods: A descriptive case series study was carried out. Clinicopathological data of 29 patients with colon cancer undergoing right hemicolectomy at Department of General Surgery, Guangdong Provincial People's Hospital were retrospectively analyzed. All the patients received ICG injection through accessory incision at the beginning of operation. Results: Among 29 patients, 13 were male and 16 were female with a mean age of (60.8±7.7) years and mean body mass index of (24.3±2.8) kg/m(2); 3 were stage I, 19 were stage II, 7 were stage III. Pericolic, intermediate and main lymph nodes could be detected under near infrared fluorescence imaging (NIRFI) in all the cases. No.6 lymph nodes were observed in 3 cases, while no lymph nodes around superior mesenteric vein (SMV) were found. The average number of fluorescent lymph node was 14.2±6.1. The average developing time of fluorescence was (36.2±3.7) minutes. The average number of harvested lymph nodes was 22.4±8.2. There was no extravasation of imaging agent during the operation, and there were no intraoperative complications such as allergies, massive abdominal bleeding, peripheral organ damage, etc. Operative time was (113.1±10.7) minutes, blood loss during operation was (22.4±3.9) ml, ambulatory time was (1.2±0.4) days, time to the first flatus was (1.7±0.7) days, time to the first fluid diet was (0.7±0.4) days, and postoperative hospital stay was (5.8±1.5) days. No operation-associated complications such as anastomotic bleeding, anastomotic leakage, peritoneal bleeding, peritoneal infection, incision infection occurred after operation. Conclusion: ICG injection through accessory incision in laparoscopic right hemicolectomy is safe and feasible.
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Affiliation(s)
- Z J Lyu
- Department of General Surgery, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong 510060, China
| | - W J Liang
- Department of General Surgery, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong 510060, China
| | - D Q Wu
- Department of General Surgery, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong 510060, China
| | - W X Hu
- Department of General Surgery, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong 510060, China
| | - J J Wang
- Department of General Surgery, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong 510060, China
| | - J B Zheng
- Department of General Surgery, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong 510060, China
| | - Q Yan
- Department of General Surgery, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong 510060, China
| | - W L Wu
- Department of General Surgery, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong 510060, China
| | - G F Cai
- Department of General Surgery, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong 510060, China
| | - X Q Yao
- Department of General Surgery, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong 510060, China
| | - Y Li
- Department of General Surgery, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong 510060, China
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11
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Yan BY, Lyu JJ, Feng Y, Wu WL, Liu JY, Xu AQ, Zhang L. [Genotype distribution and molecular epidemiology of hepatitis E virus isolated in Shandong Province of China in 2017]. Zhonghua Yu Fang Yi Xue Za Zhi 2020; 54:696-701. [PMID: 32842289 DOI: 10.3760/cma.j.cn112150-20200311-00315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Objective: To understand the genotype distribution and molecular epidemiological characteristics of hepatitis E virus (HEV) isolated in Shandong Province, 2017. Methods: The cases of hepatitis E who were reported to the National Notifiable Disease Reporting System (NNDRS) from January to December 2017 in Shandong Province were chosen as the subjects in the study. Epidemiological information and blood samples were collected from 1 045 participants. Both anti-HEV IgM and anti-HEV IgG were detected using ELISA method. Viral nucleic acids were extracted only from those of anti-HEV IgM positive samples. Nested reverse transcription-polymerase chain reaction was carried out to amplify 644 bp nucleotide sequences within HEV open reading frame (ORF) 2 region. The sample sequences together with reference sequences from GenBank were subjected to phylogenetic analysis. Results: In total, 638 (61.1%) cases were detected positive for anti-HEV IgM. The average age of male was (57.9±12.2) years, and the anti-HEV IgM positive rate was 61.5% (496/807). The average age of female was (58.1±15.0) years, and the anti-HEV IgM positive rate was 59.7% (142/238). A total of 163 HEV strains were detected, and the positive rate was 25.6% (163/638). The positive rate of the eastern, central and western region was 23.0% (71/309), 33.6% (72/214) and 17.4% (20/115), respectively. Phylogenetic tree and homology analysis indicated that all isolates belonged to genotype Ⅳ, clustering into four different subgenotype (4a, 4b, 4d and 4h). Subgenotype 4d was predominant, accounting for 85.9% (140 strains), followed by 4b (7.4%, 12 strains), 4a (3.7%, 6 strains) and 4h (3.1%, 5 strains). The 4a, 4b, and 4h subgenotype were mainly detected in the eastern region, accounting for 3/5, 11/12, and 4/6, respectively. The 4d subgenotype was mainly in the middle region, accounting for 50.0% (70/140). The homology analysis showed that the 163 sequences shared 82.7% to 100.0% nucleotide sequence identity with each other. The 140 sequences of HEV 4d strains showed high similarity with swine-origin HEV(KF176351), cattle-origin HEV(KU904278)and sheep-origin HEV(KU904267)isolated in Shandong Province, and the nucleotide homology was 93.1%-98.3%, 92.7%-97.9% and 92.7%-97.9%, respectively. Conclusion: HEV genotype Ⅳ(4d subgenotype) was dominant in Shandong province. A complicated interspecies transmission might be the main source of human HEV infection in Shandong Province, China.
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Affiliation(s)
- B Y Yan
- Division of Expanded Programme Immunization, Shandong Provincial Center for Disease Control and Prevention/Shandong Provincial Key Laboratory of Infectious Disease Control and Prevention, Jinan 250014, China
| | - J J Lyu
- Division of Expanded Programme Immunization, Shandong Provincial Center for Disease Control and Prevention/Shandong Provincial Key Laboratory of Infectious Disease Control and Prevention, Jinan 250014, China
| | - Y Feng
- Division of Expanded Programme Immunization, Shandong Provincial Center for Disease Control and Prevention/Shandong Provincial Key Laboratory of Infectious Disease Control and Prevention, Jinan 250014, China
| | - W L Wu
- Division of Expanded Programme Immunization, Shandong Provincial Center for Disease Control and Prevention/Shandong Provincial Key Laboratory of Infectious Disease Control and Prevention, Jinan 250014, China
| | - J Y Liu
- Division of Expanded Programme Immunization, Shandong Provincial Center for Disease Control and Prevention/Shandong Provincial Key Laboratory of Infectious Disease Control and Prevention, Jinan 250014, China
| | - A Q Xu
- Division of Expanded Programme Immunization, Shandong Provincial Center for Disease Control and Prevention/Shandong Provincial Key Laboratory of Infectious Disease Control and Prevention, Jinan 250014, China
| | - L Zhang
- Division of Expanded Programme Immunization, Shandong Provincial Center for Disease Control and Prevention/Shandong Provincial Key Laboratory of Infectious Disease Control and Prevention, Jinan 250014, China
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12
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Zeng YR, Li XJ, Peng BW, Liang HC, Chen WX, Wang XY, Zhu HX, Chen LF, Hou C, Wu WL. [FGF12 gene variation in two patients with early infantile epileptic encephalopathy]. Zhonghua Er Ke Za Zhi 2020; 58:326-328. [PMID: 32234142 DOI: 10.3760/cma.j.cn112140-20190807-00496] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Affiliation(s)
- Y R Zeng
- Department of Neurology, Guangzhou Women and Children's Medical Center, Guangzhou 510000, China
| | - X J Li
- Department of Neurology, Guangzhou Women and Children's Medical Center, Guangzhou 510000, China
| | - B W Peng
- Department of Neurology, Guangzhou Women and Children's Medical Center, Guangzhou 510000, China
| | - H C Liang
- Department of Neurology, Guangzhou Women and Children's Medical Center, Guangzhou 510000, China
| | - W X Chen
- Department of Neurology, Guangzhou Women and Children's Medical Center, Guangzhou 510000, China
| | - X Y Wang
- Department of Neurology, Guangzhou Women and Children's Medical Center, Guangzhou 510000, China
| | - H X Zhu
- Department of Neurology, Guangzhou Women and Children's Medical Center, Guangzhou 510000, China
| | - L F Chen
- Department of Neurology, Guangzhou Women and Children's Medical Center, Guangzhou 510000, China
| | - C Hou
- Department of Neurology, Guangzhou Women and Children's Medical Center, Guangzhou 510000, China
| | - W L Wu
- Department of Neurology, Guangzhou Women and Children's Medical Center, Guangzhou 510000, China
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Li XJ, Hou C, Qiu W, Chen LF, Zeng YR, Zhu HX, Tian Y, Peng BW, Wu WL, Gan YY, Liang HC, Chen WX. [Clinical features and prognosis of pediatric myelin oligodendrocyte glycoprotein antibody associated acute disseminated encephalomyelitis]. Zhonghua Yi Xue Za Zhi 2020; 100:339-344. [PMID: 32074776 DOI: 10.3760/cma.j.issn.0376-2491.2020.05.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Objective: To analyze the clinical features, outcome and prognosis of pediatric myelin oligodendrocyte glycoprotein (MOG) antibody associated acute disseminated encephalomyelitis (ADEM), and provide evidence for improving the diagnosis and treatment of this disease. Methods: This study involved 30 MOG antibody-associated ADEM patients in the Department of Neurology, Guangzhou Women and Children's Medical Center. Patients' clinical information were analyzed. Results: The mean onset age was (5.2±3.3) years old, the ration of male to female was 16∶14. Fifty percent of these patients had a history of precede infection or vaccination before onset. Encephalopathy and seizures were the most common clinical manifestations, followed by movement disorder. In addition, some patients had other positive autoantibodies. Brain Magnetic resonance imaging (MRI) showed extensive, asymmetrical, indefinite large patchy lesions in bilateral cortical and subcortical areas and the spinal cord was characterized by long segmental myelitis. In acute attack, the patients had a good response to corticosteroid combined immunoglobulin therapy. Most of these patients had a good prognosis and recurrence rate was about 20%. Conclusions: The onset age of MOG antibody-associated ADEM is around 5 years old. Encephalopathy and seizures were the most common clinical manifestations. Most patients have a good response to corticosteroid combined immunoglobulin therapy. Some patients may have a recurrent disease course.
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Affiliation(s)
- X J Li
- Department of Neurology, Guangzhou Women and Children's Medical Center, Guangzhou 510120, China
| | - C Hou
- Department of Neurology, Guangzhou Women and Children's Medical Center, Guangzhou 510120, China
| | - W Qiu
- Department of Neurology, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou 510630, China
| | - L F Chen
- Department of Neurology, Guangzhou Women and Children's Medical Center, Guangzhou 510120, China
| | - Y R Zeng
- Department of Neurology, Guangzhou Women and Children's Medical Center, Guangzhou 510120, China
| | - H X Zhu
- Department of Neurology, Guangzhou Women and Children's Medical Center, Guangzhou 510120, China
| | - Y Tian
- Department of Neurology, Guangzhou Women and Children's Medical Center, Guangzhou 510120, China
| | - B W Peng
- Department of Neurology, Guangzhou Women and Children's Medical Center, Guangzhou 510120, China
| | - W L Wu
- Department of Neurology, Guangzhou Women and Children's Medical Center, Guangzhou 510120, China
| | - Y Y Gan
- Department of Neurology, Guangzhou Women and Children's Medical Center, Guangzhou 510120, China
| | - H C Liang
- Department of Neurology, Guangzhou Women and Children's Medical Center, Guangzhou 510120, China
| | - W X Chen
- Department of Neurology, Guangzhou Women and Children's Medical Center, Guangzhou 510120, China
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Li XJ, Peng BW, Hou C, Liang HC, Chen LF, Zhu HX, Zeng YR, Wu WL, Chen WX, Long YM. [A child of autoimmune glial fibrillary acidic protein astrocytopathy who had onset with meningitis]. Zhonghua Er Ke Za Zhi 2019; 57:882-884. [PMID: 31665844 DOI: 10.3760/cma.j.issn.0578-1310.2019.11.013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- X J Li
- Department of Neurology, Guangzhou Women and Children's Medical Center, Guangzhou 510623, China
| | - B W Peng
- Department of Neurology, Guangzhou Women and Children's Medical Center, Guangzhou 510623, China
| | - C Hou
- Department of Neurology, Guangzhou Women and Children's Medical Center, Guangzhou 510623, China
| | - H C Liang
- Department of Neurology, Guangzhou Women and Children's Medical Center, Guangzhou 510623, China
| | - L F Chen
- Department of Neurology, Guangzhou Women and Children's Medical Center, Guangzhou 510623, China
| | - H X Zhu
- Department of Neurology, Guangzhou Women and Children's Medical Center, Guangzhou 510623, China
| | - Y R Zeng
- Department of Neurology, Guangzhou Women and Children's Medical Center, Guangzhou 510623, China
| | - W L Wu
- Department of Neurology, Guangzhou Women and Children's Medical Center, Guangzhou 510623, China
| | - W X Chen
- Department of Neurology, Guangzhou Women and Children's Medical Center, Guangzhou 510623, China
| | - Y M Long
- Department of Neurology, the Second Affiliated Hospital of Guangzhou Medical University, Guangzhou 510260, China
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Zhang L, Yan BY, Lyu JJ, Liu JY, Kong Q, Wu WL, Feng Y, Xu AQ. [Persistence of immune memory and its related factors at 12 years after hepatitis B vaccination among adults]. Zhonghua Yu Fang Yi Xue Za Zhi 2019; 53:497-502. [PMID: 31091608 DOI: 10.3760/cma.j.issn.0253-9624.2019.05.012] [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 estimate the immune memory at 12 years after hepatitis B vaccination and its risk factors among adults. Methods: The study was conducted in 20 villages of Qudi town in Jiyang county, Shandong province, China in 2003. Hepatitis B surface antigen (HBsAg), antibody against HBsAg (anti-HBs) and antibody against hepatitis B core antigen (anti-HBc) were tested for all healthy residents aged 15-40 years in these villages. Those who had no history of hepatitis B vaccination and were negative for all three indicators were divided into two groups randomly. Hepatitis B vaccine (HepB) was administrated to them on 0-6 month schedule or 0-1-6 month schedule respectively. Blood samples were obtained at one month after the last dose for each receipt and were quantitatively detected for anti-HBs. Finally a total of 629 participants completed HepB vaccination and anti-HBs testing, including 288 of two-dose group and 341 of three-dose group respectively. In 2015, an additional dose of HepB (challenge dose) was administrated to those who were negative for anti-HBs at follow-up (anti-HBs <10 mIU/ml) to evaluate the immune memory. A total of 93 blood samples, including 50 of two-dose group and 43 of three-dose group respectively, were drawn at 14 days after the challenge dose and anti-HBs was quantitatively detected. The anti-HBs geometric mean concentrations (GMCs) after the challenge dose were compared between the two groups. Multivariate linear regression model was built to find the independent risk factors associated with immune memory response (anti-HBs GMC after the challenge dose). Results: The challenge dose of HepB and post-challenge anti-HBs detection were completed among 93 participants. Totally 92 (98.92%, 92/93) participants were found holding immune memory (anti-HBs after the challenge dose was ≥10 mIU/ml). The immune memory positive rates were 100% (50/50) and 97.67% (42/43) in the two-dose group and three-dose group respectively and the corresponding anti-HBs GMC after challenge dose were 2 684.30 (95%CI: 1 721.71-4 185.08) mIU/ml and 3 527.48 (95%CI: 2 145.15-5 800.58) mIU/ml (P=0.410). The anti-HBs GMC after the challenge dose were 1 908.33 (95%CI: 1 190.01-3 060.27) mIU/ml, 4 004.20 (95%CI: 2 257.90-7 101.12) mIU/ml and 8 682.16 (95%CI: 5 813.94-12 965.36) mIU/ml among the participants whose anti-HBs titer was<4, 4-6 and 7-9 mIU/ml at follow-up, respectively (P=0.002). There was no correlation between immune schedule and anti-HBs GMC after the challenge dose; β (95%CI) was -0.07 (-0.34-0.20), P=0.601. Conclusion: The immune memory after primary hepatitis B vaccination lasted for at least 12 years among adults. The immune memory response was independently associated with ant-HBs titer at follow-up, but might be similar between 0-6 month schedule and 0-1-6 month schedule.
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Affiliation(s)
- L Zhang
- Immunization Department, Shandong Center for Disease Control and Prevention, Jinan 250014, China
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Lyu ZJ, Wu WL, Lin ZB, Liang WJ, Wang JJ, Zheng JB, Feng XY, Cai GF, Wu DQ, Li Y. [Feasibility and safety of the medial approach "four-step method" in the laparoscopic mobilization of splenic flexure]. Zhonghua Wei Chang Wai Ke Za Zhi 2019; 22:668-672. [PMID: 31302966 DOI: 10.3760/cma.j.issn.1671-0274.2019.07.012] [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 feasibility and safety of the medial approach "four-step method" in the laparoscopic mobilization of splenic flexure. Methods: A retrospective cohort study was performed. Clinical data of 157 colorectal cancer patients undergoing the medial approach "four-step method" in the laparoscopic mobilization of splenic flexure at Gastrointestinal Surgical Department of Guangdong Provincial People's Hospital from July 2015 to June 2018 were retrospectively analyzed. Of 157 cases, 17 were transverse colon cancer, 94 were descending colon cancer, 25 were sigmoid cancer and 21 were rectal cancer; 89 were male and 68 were female; mean age was (61.8±10.3) years and mean body mass index was (23.2±3.7) kg/m(2). The medial approach "four-step method" in the laparoscopic mobilization of splenic flexure was performed as follows: (1) The root vessels were treated with the "provocation" technique to expand the Toldt's gap. This expansion was extended from the lateral side to the peritoneum reflex of left colonic sulcus, from the caudal side to the posterior rectal space, and from the cephalad side to the lower edge of pancreas. (2) The left colonic sulcus was mobilized, converging with the posterior Toldt's gap. Mobilization was carried out from cephalad side to descending colon flexure, freeing and cutting phrenicocolic ligament and splenocolic ligament, and from caudal side to peritoneal reflex. (3) Gastrocolic ligament was moblized. Whether to enter the great curvature of stomach omentum arch when the gastrocolic ligament was cut, that was, whether to clean the fourth group of lymph nodes, should be according to the tumor site and whether serosal layer was invaded. (4) Transverse mesocolon was moblized and transected at the lower edge of the pancreatic surface, merging with the posterior Toldt's gap, and from lateral side to lower edge of the pancreatic body, merging with the lateral left paracolonic sulcus. Safety and short-term clinical efficacy of this surgical procedure was summarized. Results: All the patients completed this procedure. During operation, 3 cases were complicated with organ injury, including 1 case of colon injury, 1 case of spleen injury and 1 case of pancreas injury. No operative death and conversion to open surgery was found. The average operation time was (147.5±35.1) minutes, the average intra-operative blood loss was (40.8±32.7) ml and the average number of harvested lymph node was (16.1±5.8), including (4.0±2.3) of positive lymph nodes. The first exhaust time after surgery was (41.3±20.6) hours, the fluid intake time was (1.5±1.3) days, the postoperative hospital stay was (5.2±2.3) days. Eight (5.1%) cases developed postoperative complications, and all were improved and discharged after conservative treatments. According to the TNM classification system, postoperative pathology revealed that 31 patients were stage I, 51 were stage II, 53 were stage III, 22 were stage IV. Conclusion: The medial approach "four-step method" is safe and feasible, which can effectively decrease the operation difficulty of the laparoscopic mobilization of the splenic flexure.
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Affiliation(s)
- Z J Lyu
- Department of General Surgery, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510060, China
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Liang H, Wu WL, Zhang YH, Zhou SJ, Long CY, Wen J, Wang BY, Liu ZT, Zhang CZ, Huang PP, Liu N, Deng XL, Zou F. Levels, temporal trend and health risk assessment of five heavy metals in fresh vegetables marketed in Guangdong Province of China during 2014–2017. Food Control 2018. [DOI: 10.1016/j.foodcont.2018.04.051] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Fu L, Wu W, Zhu J, Qiang S, Chen J. Calycosin regulates glucocorticoid-induced apoptosis via Nrf2/ARE signaling in MC3T3-E1 cells. TROP J PHARM RES 2018. [DOI: 10.4314/tjpr.v17i2.2] [Citation(s) in RCA: 2] [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: 11/17/2022] Open
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He QY, Jin F, Li YY, Wu WL, Long JH, Luo XL, Gong XY, Chen XX, Bi T, Li ZL, Qu B, Jiang H, Zhang PX. Prognostic significance of downregulated BMAL1 and upregulated Ki-67 proteins in nasopharyngeal carcinoma. Chronobiol Int 2018; 35:348-357. [PMID: 29172799 DOI: 10.1080/07420528.2017.1406494] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2017] [Accepted: 11/14/2017] [Indexed: 12/14/2022]
Abstract
This study assessed the prognostic value of BMAL1 and Ki-67 expression in patients with nasopharyngeal carcinoma. Level of BMAL1 mRNA was assessed in tissue specimens from 36 nasopharyngeal carcinomas and 20 nasopharyngeal chronic inflammations using quantitative reverse transcriptase-polymerase chain reaction. Expression of BMAL1 and Ki-67 proteins was analyzed immunohistochemically in 90 paired nasopharyngeal carcinoma and distant normal tissues. The Kaplan-Meier curves and the Log-rank test were used to calculate prognostic significance stratified by BMAL1 and Ki67 protein expression and the COX regression model was to analyze the multivariate prognosis. BMAL1 mRNA was significantly reduced in nasopharyngeal carcinoma (4.67 ± 0.27 versus 6.64 ± 0.51 in chronic inflammation tissues, p = 0.002). Level of BMAL1 mRNA was associated with tumor distant metastasis (3.37 ± 0.66 versus 5.04 ± 0.27 compared with non-metastasis, p = 0.011). Level of BMAL1 protein was also reduced in tumor tissues and BMAL1 expression was associated with better 1-, 3- and 5-year overall survival (OS) of cancer patients (92.6%, 69.2% and 62.3% versus 59.1%, 40.9% and 0% in patients with low BMAL1 expressed tumors; p = 0.000). BMAL1 expression and age were independent prognostic factors for OS (p = 0.032). Furthermore, Ki-67 expression was high in tumor versus normal tissues and associated with poor OS of cancer patients (p = 0.035). The Pearson correlation analysis showed that there was an inverse association between BMAL1 and Ki-67 protein expression (p = 0.021). This study demonstrated that lost BMAL1 and Ki-67 overexpression were associated with poor OS of nasopharyngeal carcinoma patients.
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Affiliation(s)
- Q Y He
- a Department of Head and Neck Oncology , Guizhou Cancer Hospital , Guiyang , PR China
| | - F Jin
- a Department of Head and Neck Oncology , Guizhou Cancer Hospital , Guiyang , PR China
- b Department of Oncology , Affiliated Hospital of Guizhou Medical University , Guiyang , PR China
| | - Y Y Li
- a Department of Head and Neck Oncology , Guizhou Cancer Hospital , Guiyang , PR China
- b Department of Oncology , Affiliated Hospital of Guizhou Medical University , Guiyang , PR China
| | - W L Wu
- a Department of Head and Neck Oncology , Guizhou Cancer Hospital , Guiyang , PR China
- b Department of Oncology , Affiliated Hospital of Guizhou Medical University , Guiyang , PR China
| | - J H Long
- a Department of Head and Neck Oncology , Guizhou Cancer Hospital , Guiyang , PR China
- c Guizhou Medical University , Guiyang , PR China
| | - X L Luo
- a Department of Head and Neck Oncology , Guizhou Cancer Hospital , Guiyang , PR China
- b Department of Oncology , Affiliated Hospital of Guizhou Medical University , Guiyang , PR China
| | - X Y Gong
- a Department of Head and Neck Oncology , Guizhou Cancer Hospital , Guiyang , PR China
| | - X X Chen
- a Department of Head and Neck Oncology , Guizhou Cancer Hospital , Guiyang , PR China
| | - T Bi
- a Department of Head and Neck Oncology , Guizhou Cancer Hospital , Guiyang , PR China
- c Guizhou Medical University , Guiyang , PR China
| | - Z L Li
- a Department of Head and Neck Oncology , Guizhou Cancer Hospital , Guiyang , PR China
- b Department of Oncology , Affiliated Hospital of Guizhou Medical University , Guiyang , PR China
| | - B Qu
- a Department of Head and Neck Oncology , Guizhou Cancer Hospital , Guiyang , PR China
| | - H Jiang
- a Department of Head and Neck Oncology , Guizhou Cancer Hospital , Guiyang , PR China
| | - P X Zhang
- c Guizhou Medical University , Guiyang , PR China
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Wu WL, Deng XL, Zhou SJ, Liang H, Yang XF, Wen J, Li XM, Zhang CZ, Zhang YH, Zou F. Levels, congener profiles, and dietary intake assessment of polychlorinated dibenzo-p-dioxins/dibenzofurans and dioxin-like polychlorinated biphenyls in beef, freshwater fish, and pork marketed in Guangdong Province, China. Sci Total Environ 2018; 615:412-421. [PMID: 28988077 DOI: 10.1016/j.scitotenv.2017.09.273] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2017] [Revised: 09/25/2017] [Accepted: 09/25/2017] [Indexed: 06/07/2023]
Abstract
Persistent organic pollutants such as polychlorinated dibenzo-p-dioxins (PCDDs), polychlorinated dibenzofurans (PCDFs), and dioxin-like polychlorinated biphenyls (DL-PCBs) consisting of non-ortho and mono-ortho PCBs are suggested to be very hazardous and have adverse effects on human health. However, their levels and congener profiles in retail foods marketed in Guangdong Province of China have not been elucidated thus far. Thus, in this study, 226 individual samples of beef, freshwater fish, and pork marketed across four regions of Guangdong Province were randomly collected during 2013-2015 to determine their levels of PCDD/Fs and DL-PCBs. The results showed that the total toxic equivalency quantities (TEQs) of most samples were below the maximum limits except for the 26 samples collected from the vicinities of pollution areas. The median total TEQs of these three categories were 0.174, 0.488, and 0.113pgTEQ/g fw, respectively, which indicated that the contamination status of the studied foods was not serious. For congener profiles, significantly different patterns were observed in three food groups, but with the same major TEQ contributors being 2,3,4,7,8-PeCDF in beef, freshwater fish, and pork. Regional differences of congener profiles in each food group were also found in this study, which might be attributed to the regionally different distributions of PCDD/Fs and DL-PCBs in environment media. The dietary exposures of four population subgroups (girls, boys, male adults, and female adults) to PCDD/Fs and DL-PCBs via three food groups were estimated to assessed the potential risks. They were all lower than the provisional tolerable monthly intake (PTMI, 70pgTEQ/kgbw/month) established by Joint FAO/WHO Expert Committee on Food Additive. In these food categories, the exposure to PCDD/Fs and DL-PCBs via freshwater fish was the highest one, which accounted for about 20% of PTMI, indicating that it was the major route to expose dioxin compounds.
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Affiliation(s)
- Wei-Liang Wu
- Institute of Nutrition and Food Safety, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou 511430, PR China; School of Public Health, Southern Medical University, Guangzhou 510515, PR China; Guangzhou Punuo Environmental Testing and Technology Service Co. Ltd., Guangzhou 510530, PR China
| | - Xiao-Ling Deng
- Institute of Nutrition and Food Safety, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou 511430, PR China
| | - Shao-Jun Zhou
- Institute of Nutrition and Food Safety, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou 511430, PR China
| | - Hui Liang
- Institute of Nutrition and Food Safety, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou 511430, PR China
| | - Xing-Fen Yang
- Institute of Nutrition and Food Safety, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou 511430, PR China
| | - Jian Wen
- Institute of Nutrition and Food Safety, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou 511430, PR China
| | - Xiao-Ming Li
- Guangzhou Punuo Environmental Testing and Technology Service Co. Ltd., Guangzhou 510530, PR China; National Testing Center for Food Quality Supervision (Guangdong), Guangdong Testing Institute of Product Quality Supervision, Foshan 528300, PR China
| | - Chao-Zheng Zhang
- Institute of Nutrition and Food Safety, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou 511430, PR China
| | - Yong-Hui Zhang
- Institute of Nutrition and Food Safety, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou 511430, PR China.
| | - Fei Zou
- School of Public Health, Southern Medical University, Guangzhou 510515, PR China.
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Ai MM, Guo SG, Zhou Q, Wu WL, Jiang AM. The investigation of the changes in physicochemical, texture and rheological characteristics of salted duck egg yolk during salting. Lebensm Wiss Technol 2018. [DOI: 10.1016/j.lwt.2017.10.013] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Yan BY, Zhang L, Lyu JJ, Feng Y, Liu JY, Wu WL, Song LZ, Xu AQ. [A sero-epidemiological study of hepatitis E among general population in Shandong Province of China in 2014]. Zhonghua Yu Fang Yi Xue Za Zhi 2017; 51:587-592. [PMID: 28693081 DOI: 10.3760/cma.j.issn.0253-9624.2017.07.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Objective: To analyze the sero-epidemiological characteristics of hepatitis E virus (HEV) in Shandong province, and thereby to provide evidence for the policy-making of hepatitis E prevention and control. Methods: The inhabitants aged between 1-59 years old were randomly selected to participate in the study by two-stage stratified random sampling method from 12 counties in Shandong province in October, 2014. Firstly two townships were selected from each county by probability proportional to size sampling (PPS) method. A total of 5 229 participants aged 1-59 years old were selected by stratified random sampling method. All the participants finished a questionnaire survey and a venous blood sample (3-5 ml) was collected from each to test anti-HEV IgG by enzyme-linked assay (ELISA). The weighted prevalence of anti-HEV IgG with different demographic characteristics was estimated. The variance of the positive rate of anti-HEV IgG was calculated by Taylor series linearization method, as well as its 95%CI. A statistical test was conducted to compare the rate of its 95%CI, and the results in the present study were compared with those in sero-survey in 2006. Results: A total of 5 229 subjects entered the final analysis in 2014. The overall weighed prevalence of anti-HEV IgG was 9.19% (95%CI: 6.18%-12.20%) among natural population in Shandong province, decreased by 19.88% in comparison with that in 2006 sero-survey (11.47%, 95%CI: 8.92%-14.02%). The prevalence increased with age increasing (χ(2trend)=288.11, P<0.001) in 2014, which was similar to the result in 2006 sero-survey. Except for 1-4 years old group, the prevalence of anti-HEV IgG in the other age groups were lower than it in the corresponding groups in 2006. The prevalence of anti-HEV IgG in urban (8.19%, 95%CI: 0.00-22.23%), rural areas (9.69%, 95%CI: 4.99%-14.38%), eastern areas (12.70%, 95%CI: 0.00-27.72%), central areas (4.74%, 95%CI: 0.00-9.91%) and western areas (9.32%, 95%CI: 0.69%-17.94%) in 2014 were all lower than the corresponding prevalences (11.39%, 95%CI: 8.17%-14.62%; 11.92%, 95%CI: 8.75%-15.08%; 22.77%, 95%CI: 14.99%-30.55%; 7.97%, 95%CI: 4.75%-11.20%; 10.59%, 95%CI: 6.37%-14.82%) in 2006 survey. The prevalence of anti-HEV IgG in coastal areas (16.56%, 95%CI: 12.94%-20.18%) and inland areas (7.63%, 95%CI: 5.16%-10.10%) in 2014 were lower than it in the corresponding areas (28.04%, 95%CI: 20.45%-35.64%; 9.50%, 95%CI: 7.31%-11.70%) in 2006 survey. The prevalence among peasant (11.98%, 95%CI: 8.20%-15.76%), worker (9.68%, 95%CI: 4.48%-14.88%), cadre (13.90%, 95%CI: 7.47%-20.33%), service provider (12.26%, 95%CI: 1.80%-22.73%) in 2014 survey were lower than it among the corresponding populations (13.76%, 95%CI: 10.15%-17.38%; 21.11%, 95%CI: 12.67%-29.55%; 17.81%, 95%CI: 7.63%-28.00%; 21.08%, 95%CI: 0.03%-42.12%) in 2006 survey. Conclusion: The prevalence of anti-HEV IgG has decreased in Shandong province in the recent years, but the epidemiological characteristics found no obvious changes. HEV susceptibility in natural population was generally high. Hepatitis E vaccines were recommended to be used in HEV high-risk population in the province.
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Affiliation(s)
- B Y Yan
- Division of Expanded Programme Immunization, Shandong Provincial Center for Disease Control and Prevention, Shandong Provincial Key Laboratory of Infectious Disease Control and Prevention, Jinan 250014, China
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Ou YE, Lin ZM, Wu WL, Luo Q, Chen RC. Reply to: Non invasive ventilation for relieving dyspnea in severe COPD: Some key practical insights from lung physiology. Respir Med 2017; 127:69-70. [PMID: 28341103 DOI: 10.1016/j.rmed.2017.03.016] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Affiliation(s)
- Yong-Er Ou
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Disease, First Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510120, PR China
| | - Zhi-Min Lin
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Disease, First Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510120, PR China
| | - Wei-Liang Wu
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Disease, First Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510120, PR China
| | - Qun Luo
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Disease, First Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510120, PR China
| | - Rong-Chang Chen
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Disease, First Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510120, PR China.
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Zhang L, Yan BY, Lyu JJ, Liu JY, Feng Y, Wu WL, Cao CZ, Chen SY, Zhou LB, Liang XF, Cui FQ, Wang FZ, Zhang GM, Xu AQ. [Anti-HBs persistence after revaccination with three doses of hepatitis B vaccine among non-responsive adults: a 4-year of follow-up study]. Zhonghua Yu Fang Yi Xue Za Zhi 2017; 50:497-502. [PMID: 27256728 DOI: 10.3760/cma.j.issn.0253-9624.2016.06.005] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE To explore anti-HBs persistence four years after revaccination with hepatitis B vaccine (HepB) among adults who were non-responsive to HepB primary immunization. METHODS A total of 24 237 healthy adults who had no history of hepatitis B infection and hepatitis B vaccination, resided in the local area for more than six months and aged 18-49 years were selected from 79 villages of Zhangqiu County, Shandong Province, China in 2009. Blood samples were obtained and hepatitis B surface antigen (HBsAg), antibody against hepatitis B surface antigen (anti-HBs) and antibody against hepatitis B core antigen (anti-HBc) were detected using ELISA method. A total of 11 590 persons who were negative for all of these indicators were divided into four groups by cluster sampling methods. Each group was vaccinated with one of the following four types of HepB at 0-1-6months schedule: 20 μg HepB derived in Saccharomyces cerevisiae (HepB-SC), 20 μg HepB derived in Chinese hamster ovary cell (HepB-CHO), 10 μg HepB-SC and 10 μg HepB derived in Hansenula polymorpha (HepB-HP). Blood samples were collected one month after the third dose of primary immunization and tested for anti-HBs using chemiluminescence microparticle immunoassay (CMIA). The non-responders were followed up and their basic information and the histories of hepatitis B infection, HepB vaccination, smoking and drinking were investigated. Then they were revaccinated with three doses of HepB with the same schedule as the primary immunization. Blood samples were collected from all of them one month (T1), two years and four years after revaccination and anti-HBs, anti-HBc and HBsAg were detected by CMIA. A total of 356 participants were followed up from 645 low-responders four years after revaccination, and the ratio was 55.2%. The risk factors associated with the positive rate and geometric mean concentration (GMC) of anti-HBs after four years of revaccination were analyzed using multivariate unconditional logistic regression model and multivariate linear regression model, respectively. RESULTS Among 356 participants, 172 (48.3%) were males and 184 (51.7%) were females. The anti-HBs positive rate was 90.4% (322 cases) at T1 and was 55.9% (199 cases) four years after revaccination. The GMC of anti-HBs was 240.5 (95% CI: 186.4-310.4)mU/ml at T1 and decreased to 15.0 (95%CI: 12.2-18.5) mU/ml four years after revaccination. The average annual decreasing rate of GMC was 50.63% from one month after revaccination to four years after revaccination. The corresponding rate was 64.89% in the first two years, which was 2.12 times the rate in the latter two years (30.57%). When compared with those whose anti-HBs titer was less than 99 mU/ml at T1, the significantly higher anti-HBs four years after revaccination was observed in those whose anti-HBs titer at T1 was 100-999 mU/ml and those whose anti-HBs titer at T1 was ≥1 000 mU/ml. The OR (95%CI) was 7.14 (3.90-13.05) and 28.40 (13.16-61.30) respectively. When compared with those whose anti-HBs titer was ≤99 mU/ml at T1, the GMC of anti-HBs four years after revaccination was also significantly higher among those whose anti-HBs titer at T1 was 100-999 mU/ml and those whose anti-HBs titer at T1 was ≥1 000 mU/ml. The b (95%CI) was 1.66 (1.26-2.05) and 3.16 (2.72-3.60), respectively. CONCLUSION The positive rate and GMC of anti-HBs decreased four years after revaccination among non-responsive adults, but still kept anti-HBs above protective level. The immunity durability after revaccination is mainly associated with anti-HBs titer one month after revaccination.
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Affiliation(s)
- L Zhang
- Division of Expanded Immunization Program, Shandong Provincial Center for Disease Control and Prevention, Shandong Provincial Key Laboratory of Infectious Disease Control and Prevention, Jinan 250014, China
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Wu WL, Yan BY, Lyu JJ, Liu JY, Feng Y, Chen SY, Zhou LB, Liang XF, Cui FQ, Wang FZ, Zhang GM, Zhang L, Xu AQ. [Antibody persistence following primary vaccination with hepatitis B vaccine among normal and high-responder adults: a 5-year follow-up study]. Zhonghua Yu Fang Yi Xue Za Zhi 2017; 50:484-90. [PMID: 27256726 DOI: 10.3760/cma.j.issn.0253-9624.2016.06.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE To evaluate the 5-year antibody persistence and the risk factors associated with the persistence after primary vaccination of hepatitis B vaccine (HepB) among normal or high-response adults. METHODS A total of 24 237 healthy adults who had no histories of hepatitis B infection and hepatitis B vaccination, resided in the local area for more than six months and were aged 18-49 years were selected from 79 villages in north of Zhangqiu county, Shandong province, China in 2009. Blood samples were obtained and hepatitis B surface antigen (HBsAg), antibody against hepatitis B surface antigen (anti-HBs) and antibody against hepatitis B core antigen (anti-HBc) were detected using ELISA method. A total of 11 590 persons who were negative for all of these indicators were divided into four groups by cluster sampling methods. Each group was vaccinated with one of the following four types of HepB at 0-1-6 months schedule: 20 μg HepB derived in Saccharomyces cerevisiae (HepB-SC), 20 μg HepB derived in Chinese hamster ovary cell (HepB-CHO), 10 μg HepB-SC and 10 μg HepB derived in Hansenula polymorpha (HepB-HP). The normal and high-responder was followed up and their demographic characteristic (including age, gender), histories of hepatitis B infection, hepatitis B vaccination, smoking, drinking and chronic diseases were investigated. Blood samples were collected one month (T1) and five years (T2) and anti-HBs, anti-HBc and HBsAg (if anti-HBs<10 mU/ml) were detected by CMIA. A total of 1 902 participants were followed up and the risk factors associated with positive rate of anti-HBs and GMC of anti-HBs were identified by multiple logistic regression analysis and multifactor linear regression model analysis, respectively. RESULTS Among 1 902 adults, 824 (43.32%) were male and 1 078 (56.68%) were female. The anti-HBs positive rate was 100% at T1 and it decreased to 73.29% (1 394 cases) at T2. The corresponding GMC was decreased from 1 527.15 (95%CI: 1 437.84-1 622.01) mU/ml at T1 to 35.07 (95%CI: 32.20-38.19) mU/ml at T2. When comparing with those vaccinated 20 μg HepB-SC, the significantly lower positive rate at T2 was observed in those vaccinated 10 μg HepB-SC group and 10 μg HepB-HP group. The OR (95% CI) was 0.41 (0.28-0.61) and 0.27 (0.18-0.39), respectively. The GMC of anti-HBs was also significantly lower among those vaccinated 10 μg HepB-SC and 10 μg HepB-HP. The b (95%CI) was -0.20 (-0.28- -0.12) and -0.36 (-0.44- -0.29) , respectively. When comparing with those occasionally drinking, the significantly lower positive rate at T2 was observed in those regular drinking. The OR(95%CI) was 0.51(0.30-0.87). The GMC of anti-HBs in age group of 18-29 was significantly higher than those in 40-49 age group; the b (95%CI) was -0.10(-0.18- -0.01). When comparing with those whose anti-HBs titer was less than 999 mU/ml at T1, the significantly higher positive rate of anti-HBs at T2 was observed in those whose anti-HBs titer was 1 000-1 999 mU/ml, those whose anti-HBs titer was 2 000-2 999 mU/ml and those whose anti-HBs titer was ≥10 000 mU/ml. The OR (95%CI) was 10.11 (6.90-14.82), 20.42 (13.98-29.82) and 54.58 (22.08-134.92), respectively. When comparing with those whose anti-HBs titer was ≤999 mU/ml at T1, the GMC of anti-HBs at T2 was also significantly higher among those whose anti-HBs titer at T1 was 1 000-1 999 mU/ml, those whose anti-HBs titer at T1 was 2 000-2 999 mU/ml and those whose anti-HBs titer at T1 was ≥10 000 mU/ml. The b (95%CI) was 0.55 (0.47-0.62), 0.94 (0.88-1.00) and 1.63 (1.54-1.72), respectively. Nobody was found positive to HBsAg at T2 and the conversion rate of anti-HBc was 3.89% (74/1 902) at T2. CONCLUSION Anti-HBs GMC decreased rapidly at T2 among normal and high-responder adults, while the positive rate of anti-HBs still kept at a high level. The antibody persistence among normal and high-responder adults at T2 was associated with HepB type, age, history of drinking and GMC of anti-HBs at T1.
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Affiliation(s)
- W L Wu
- Expanded Program Immunization Division, Shandong Provincial Center for Disease Control and Prevention, Shandong Provincial Key Laboratory of Infectious Disease Control and Prevention, Jinan 250014, China
| | - B Y Yan
- Expanded Program Immunization Division, Shandong Provincial Center for Disease Control and Prevention, Shandong Provincial Key Laboratory of Infectious Disease Control and Prevention, Jinan 250014, China
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Lyu JJ, Yin XW, Yan BY, Liu JY, Feng Y, Wu WL, Chen SY, Zhou LB, Liang XF, Cui FQ, Wang FZ, Zhang L, Xu AQ. [Anti-HBs persistence following revaccination with three doses of hepatitis B vaccine among low-responsive adults after primary vaccination: a 4-year follow-up study]. Zhonghua Yu Fang Yi Xue Za Zhi 2017; 50:491-6. [PMID: 27256727 DOI: 10.3760/cma.j.issn.0253-9624.2016.06.004] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE To assess the 4-year anti-HBs persistence after revaccination with 3-dose of hepatitis B vaccine (HepB) among low-responsive adults. METHODS A total of 24 237 healthy adults who had no history of hepatitis B infection and hepatitis B vaccination, resided in the local area for more than six months and were aged 18-49 years were selected from 79 villages of Zhangqiu county, Shandong province, China in 2009. Blood samples were obtained and hepatitis B surface antigen (HBsAg), antibody against hepatitis B surface antigen (anti-HBs) and antibody against hepatitis B core antigen (anti-HBc) were detected using ELISA method. A total of 11 590 persons who were negative for all of these indicators were divided into four groups by cluster sampling method. Each group was vaccinated with one of the following four types of HepB at 0-1-6 months schedule: 20 μg HepB derived in Saccharomyces cerevisiae (HepB-SC), 20 μg HepB derived in Chinese hamster ovary cell (HepB-CHO), 10 μg HepB-SC and 10 μg HepB derived in Hansenula polymorpha (HepB-HP). Blood samples were collected one month after the third dose of primary immunization and tested for anti-HBs using chemiluminescence microparticle immunoassay (CMIA). The 892 low-responders were revaccinated with three doses of HepB at 0-1-6 months schedule and the type of HepB was the same as which was used for primary immunization. During the follow-up to low-responders, the following informations were collected: the demographic characteristics (including age, gender), histories of hepatitis B infection, hepatitis B vaccination, smoking, drinking and chronic diseases. Blood samples were collected one month (T1) and four years after revaccination and anti-HBs, anti-HBc and HBsAg (if anti-HBs <10 mU/ml) were detected by CMIA. The risk factors associated with positive rate of anti-HBs and GMC of anti-HBs were identified by multiple logistic regression analysis and multifactor linear regression model analysis respectively. Anti-HBs titer at T1 was grouped according to the level and was considered as the independent variable in the model analysis. RESULTS A total of 529 participants were identified from 892 low-responders. Among 529 participants, 276 (52.2%) were males and 253 (47.8%) were females. The positive rate was 82.6% (437/529) at T1 and it decreased to 28.2% (149/529) four years after revaccination. The corresponding GMC decreased from 542.06 (95% CI: 466.72-629.56) mU/ml to 27.69 (95% CI: 23.08-33.23) mU/ml. Multivariable analysis showed the positive rate of anti-HBs 4 years after revaccination was independently associated with anti-HBs titer at T1. The positive rate among those whose anti-HBs titer more than 1 000 mU/ml at T1 was significantly higher than those whose anti-HBs titer less than 100 mU/ml. The OR (95%CI) was 39.67 (13.81-114.01). The GMC was associated with HepB type for revaccination and anti-HBs titer at T1. The GMC among those revaccinated 20 μg HepB was significantly higher than those revaccinated 20 μg HepB-CHO, 10 μg HepB-SC and 10 μg HepB-HP. The b (95% CI) was -0.40 (-0.78--0.02), -0.57 (-1.01- -0.15) and -0.63 (-1.03- -0.23), respectively. The GMC among those whose anti-HBs titer 100-999 mU/ml and those whose anti-HBs titer ≥1 000 mU/ml at T1 were higher than those whose anti-HBs titer <100 mU/ml. The b (95% CI) was 0.93 (0.53-1.33) and 3.31 (2.88-3.73) respectively. CONCLUSION Anti-HBs GMC decreased rapidly 4 years after revaccination among low-responsive adults, but still kept good protecion. The anti-HBs persistence after revaccination was associated with HepB type for revaccination and anti-HBs level of titer one month after revaccination.
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Affiliation(s)
- J J Lyu
- Expanded Program Immunization Division, Shandong Provincial Center for Disease Control and Prevention, Shandong Provincial Key Laboratory of Infectious Disease Control and Prevention, Jinan 250014, China
| | - X W Yin
- Expanded Program Immunization Division, Ningyang Center for Disease Control and Prevention, Taian 271400, China
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Hu X, Shin K, Rafailovich M, Sokolov J, Stein R, Chan Y, Wlwu KW, Wu WL, Kolb R. Anomalies in the Optical Index of Refraction of Spun Cast Polystyrene Thin Films. HIGH PERFORM POLYM 2016. [DOI: 10.1088/0954-0083/12/4/318] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
We used x-ray reflectivity in combination with optical ellipsometry to measure the optical index of refraction, n, in thin spun cast polystyrene films. We have found that n is independent of the molecular weight, but is a sharp function of the film thickness for films less than 100 nm. In all cases the deviation from the bulk, Δ n, is negative and varies linearly with wavelength in the visible region. The magnitude of Δ n, was found to be as large as 0.25 for films 7 nm thick. The bulk index of refraction was recovered in all films after annealing for2habove Tg at 160 °C. X-ray reflectivity measurements of the scattering critical angle show minimal density deviations from the bulk (less than 0.5%) between the annealed and unannealed films. Consequently the large molecular-weight-independent value of Δ n is interpreted as being due to a radially symmetric segmental orientation induced by the spinning process.
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Affiliation(s)
| | | | | | - Jonathan Sokolov
- Department of Materials Science and Engineering, State University of New York at Stony Brook, Stony Brook, NY 11794, USA
| | - Richard Stein
- Department of Chemistry and Engineering, University of Massachusetts at Amherst, Amherst, MA 01003, USA
| | - Yee Chan
- Wheatley High School, Old Westbury, NY 11568, USA
| | | | - W L Wu
- National Institute of Standards and Technology, Gaithersburg, MD 20899, USA
| | - Rainer Kolb
- Exxon Mobile Research and Engineering Company, Annandale, NJ 08801, USA
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Chen RC, Li XY, Guan LL, Guo BP, Wu WL, Zhou ZQ, Huo YT, Chen X, Zhou LQ. Effectiveness of neuromuscular electrical stimulation for the rehabilitation of moderate-to-severe COPD: a meta-analysis. Int J Chron Obstruct Pulmon Dis 2016; 11:2965-2975. [PMID: 27932876 PMCID: PMC5135061 DOI: 10.2147/copd.s120555] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
PURPOSE Patients with COPD often experience skeletal muscle dysfunction. For those who are unable or unwilling to undertake physical training, neuromuscular electrical stimulation (NMES) may provide an alternative method of rehabilitation. The purpose of this meta-analysis was to investigate the controversial topic of whether this therapy is effective in patients with moderate-to-severe COPD. PATIENTS AND METHODS We pooled data from nine trials published between January 9, 2002 and January 4, 2016 across PubMed, Embase, Cochrane Central Register of Controlled Trials, Google Scholar, and relevant websites for randomized controlled trials. In these trials, patients with moderate-to-severe COPD were randomly allocated to receive NMES. Primary outcomes were quadricep strength and exercise capacity. The secondary outcome was health-related quality of life. RESULTS We extracted data from 276 patients. NMES contributed to statistically improved quadricep strength (standardized mean difference 1.12, 95% confidence interval [CI] 0.64-1.59, I2=54%; P<0.00001) and exercise capacity, including longer exercise distance (weighted mean difference 51.53, 95% CI 20.13-82.93, I2=90%; P=0.001), and longer exercise endurance (standardized mean difference 1.11, 95% CI 0.14-2.08, I2=85%; P=0.02). There was no significant difference in St George's Respiratory Questionnaire scores (weighted mean difference -0.07, 95% CI -2.44 to 2.30, I2=56%; P=0.95). CONCLUSION NMES appears an effectual means of enhancing quadricep strength and exercise capacity in moderate-to-severe COPD patients. Further research is demanded to clarify its effect on other outcomes and determine the optimal parameters for an NMES program.
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Affiliation(s)
- Rong-Chang Chen
- State Key Laboratory of Respiratory Disease, Guangzhou Institute of Respiratory Disease, First Affiliated Hospital of Guangzhou Medical University
| | - Xiao-Ying Li
- State Key Laboratory of Respiratory Disease, Guangzhou Institute of Respiratory Disease, First Affiliated Hospital of Guangzhou Medical University
| | - Li-Li Guan
- State Key Laboratory of Respiratory Disease, Guangzhou Institute of Respiratory Disease, First Affiliated Hospital of Guangzhou Medical University
| | - Bing-Peng Guo
- State Key Laboratory of Respiratory Disease, Guangzhou Institute of Respiratory Disease, First Affiliated Hospital of Guangzhou Medical University
| | - Wei-Liang Wu
- State Key Laboratory of Respiratory Disease, Guangzhou Institute of Respiratory Disease, First Affiliated Hospital of Guangzhou Medical University
| | - Zi-Qing Zhou
- State Key Laboratory of Respiratory Disease, Guangzhou Institute of Respiratory Disease, First Affiliated Hospital of Guangzhou Medical University
| | - Ya-Ting Huo
- State Key Laboratory of Respiratory Disease, Guangzhou Institute of Respiratory Disease, First Affiliated Hospital of Guangzhou Medical University
| | - Xin Chen
- Zhujiang Hospital of Southern Medical University, Guangzhou, People's Republic of China
| | - Lu-Qian Zhou
- State Key Laboratory of Respiratory Disease, Guangzhou Institute of Respiratory Disease, First Affiliated Hospital of Guangzhou Medical University
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Hu JY, Zheng ZG, Lu HN, Liu N, Wu WL, Li YX, Xiong Y, Wang XN, Chen RC. [The influence of condensate in the piezometric tube on patient ventilator interaction during noninvasive positive pressure ventilation]. Zhonghua Jie He He Hu Xi Za Zhi 2016; 39:704-708. [PMID: 27600420 DOI: 10.3760/cma.j.issn.1001-0939.2016.09.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
OBJECTIVE To study the effects of condensate in the piezometric tube on patient ventilator interaction during noninvasive positive pressure ventilation. METHODS Eleven healthy adults volunteered to receive noninvasive positive pressure ventilation. Different capacity of physiological saline was injected gradually into the piezometric tube until the volunteers could not trigger the ventilator or the total volume of the water reached 1.5 ml. The dynamic changes of the pressure of mask(Pmask), piezometric tube near mask (Ppro), piezometric tube near breathing machine(Pdis), and the flow were observed. RESULTS With increasing volume of saline injected, the trigger time TItri(Pmask) increased from 0.09(0.07-0.11) to 0.31(0.22-0.39)s, the trigger pressure TPtri(Pmask) increased from 0.26(0.15-0.33) to 2.29(1.76-3.09)cmH2O, and the pressure-time product PTP (Pmask) increased from 0.02(0.01-0.03) to 0.55(0.41-0.68) cmH2O·s. Ineffective triggering rate increased from 0 up to 9 times/min, and spurious triggering rate increased from 0 up to 33 times/min. The plateau pressure of Pmask and Ppro exceeded the preset parameters, increased significantly as compared with 0 ml, from (9.74±0.34)to (15.79±3.10) cmH2O and from(9.80±0.31) to(15.44±3.47) cmH2O. The change of plateau pressure of Pdis was not significant [from (9.85±0.29)to (12.58±2.64)cmH2O]. The baseline pressure of Pmask, Ppro and Pdis changed from (3.67±0.36) to (8.40±3.22) cmH2O, from (3.71±0.32) to (8.13±3.55) cmH2O and from( 3.77±0.32) to (5.36±1.25) cmH2O, respectively. The pressure fluctuation of platform of Pmask increased significantly compare with 0 ml, from 0.60(0.48-0.71) to 7.94(7.11-8.63)cmH2O. The frequency of fluctuation of platform increased as many as 7 times during a single respiratory period. The time when the pressure of the Pdis began to change was delayed to Pmask and Ppro, 0.11(0.08-0.12)s compared with 0 ml. CONCLUSION Condensate in the piezometric tube during noninvasive positive pressure ventilation could influence patient-ventilator synchrony. To improve patient ventilator interaction in noninvasive positive pressure ventilation, condensate in the piezometric tube should be avoided.
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Affiliation(s)
- J Y Hu
- The First Affiliated Hospital of Guangzhou Medical University(State Key Laboratory of Respiratory Diseases), Guangzhou Institute of Respiratory Diseases, Guangzhou 510120, China
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Wang XM, Wu WL, Zhang CH, Zhang YP, Li WL, Huang T. Analysis of the genetic diversity of beach plums by simple sequence repeat markers. Genet Mol Res 2015; 14:9693-702. [PMID: 26345902 DOI: 10.4238/2015.august.19.2] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
The purpose of this study was to measure the genetic diversity of wild beach plum and cultivated species, and to determine the species relationships using SSRs markers. An analysis of genetic diversity from ten beach plum germplasms was carried out using 11 simple sequence repeat (SSR) primers selected from 35 primers to generate distinct PCR products. From this plant material, 44 allele variations were detected, with 3-5 alleles identified from each primer. The analysis showed that the genetic similarity coefficient varied from 0.721 ± 0.155 to 0.848 ± 0.136 within each of the ten beach plum germplasms and changed within the range of 0.551 ± 0.084 to 0.695 ± 0.073 between any two pairs of germplasms. According to the genetic dissimilarity coefficient matrix, a cluster analysis of SSRs using the unweighted pair group mean average method in the NTSYSpc 2.10 software revealed that the ten germplasms could be divided into two groups at the dissimilarity coefficient of 0.606. Class I included 77.8, 12.5, 30, and 33.3% of MM, MI, NY, and CM, respectively. Class II contains the remaining 9 beach plum germplasms. The markers generated by 11 SSR primers proved very effective in distinguishing the beach plum germplasm resources. It was clear that the geographical distribution did not correspond with the genetic relationships among the different beach plum strains. This result will be of value to beach plum breeding programs.
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Affiliation(s)
- X M Wang
- Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing, Jiangsu, China
| | - W L Wu
- Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing, Jiangsu, China
| | - C H Zhang
- Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing, Jiangsu, China
| | - Y P Zhang
- College of Horticulture, Anhui Agricultural University, Hefei, Anhui, China
| | - W L Li
- Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing, Jiangsu, China
| | - T Huang
- Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing, Jiangsu, China
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Chen L, Gao L, Wu WL. Correlation of spicule sign on computed tomography scans with peripheral lung cancers associated with interstitial lung disease and chronic obstructive pulmonary disease. Genet Mol Res 2015; 14:2234-40. [PMID: 25867370 DOI: 10.4238/2015.march.27.9] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
The objective of this study was to investigate the correlation between spicular signs on computed tomography (CT) scans and peripheral lung cancer (PLC) that is associated with interstitial lung disease (ILD) and chronic obstructive pulmonary disease (COPD). We analyzed clinical data from 96 PLC cases and grouped patients based on whether they had interstitial pneumonia into either ILD/COPD group or non-ILD/COPD group. The occurrence rate of spicule sign was 90.3% in the ILD/COPD group and 61.8% in the non-ILD/COPD group, respectively. There was a significant difference between these groups (P < 0.05). There were no significant differences in the occurrence rate of spicular signs among patients with different pathological types of PLC. The severity of ILD affected the spicular morphology on CT scans directly. There was a significant correlation between the appearance of spicule sign on CT scans and PLC that was associated with ILD/COPD.
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Affiliation(s)
- L Chen
- Department of Radiology, Longgang Central Hospital of Shenzhen, Shenzhen, Guangdong Province, China
| | - L Gao
- Department of Radiology, Longgang Central Hospital of Shenzhen, Shenzhen, Guangdong Province, China
| | - W L Wu
- Department of Radiology, Longgang Central Hospital of Shenzhen, Shenzhen, Guangdong Province, China
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Zhang Y, Chen LF, Feng C, Wu WL, Yan XW. ASSA14-13-01 Cigarette smoking-induced LDL dysfunction is partially reversible after smoking cessation. Heart 2015. [DOI: 10.1136/heartjnl-2014-307109.107] [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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Wu WL, Huang YD, Hsu KE, Wang YH, Huang HH, Hsiung WC, Chen SM, Chang HS, Chu CP, Chung YJ, Huang YT. A health risk assessment of reclaimed municipal wastewater for industrial and miscellaneous use. Water Sci Technol 2014; 70:750-756. [PMID: 25116508 DOI: 10.2166/wst.2014.291] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
The study evaluated the safety of reclaimed water using health risk assessment and biotoxicity tests. The reclaimed water was produced from reverse osmosis and used in industrial and miscellaneous purposes. The health risk assessment was conducted based on the concentrations of detectable pollutants in reclaimed water in a hypothetical scenario. The estimated carcinogenic and non-carcinogenic risks are lower than the generally accepted level. Biotoxicity evaluation included three genotoxicity tests, a chronic toxicity test using medaka fishes, and a subchronic toxicity test using mice. The reclaimed water is not genetically toxic, and does not cause significant chronic effects on these model organisms. These results confirm the safety of using reclaimed water from municipal wastewater treatment plants.
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Affiliation(s)
- W L Wu
- Environment Engineering Research Center, Sinotech Engineering Consultants, Inc., 6F, 280, Xinhu 2nd Rd., Neihu Dist., Taipei, 114, Taiwan (R.O.C.) E-mail:
| | - Y D Huang
- Environment Engineering Research Center, Sinotech Engineering Consultants, Inc., 6F, 280, Xinhu 2nd Rd., Neihu Dist., Taipei, 114, Taiwan (R.O.C.) E-mail:
| | - K E Hsu
- Environment Engineering Research Center, Sinotech Engineering Consultants, Inc., 6F, 280, Xinhu 2nd Rd., Neihu Dist., Taipei, 114, Taiwan (R.O.C.) E-mail:
| | - Y H Wang
- Environment Engineering Research Center, Sinotech Engineering Consultants, Inc., 6F, 280, Xinhu 2nd Rd., Neihu Dist., Taipei, 114, Taiwan (R.O.C.) E-mail:
| | - H H Huang
- Environment Engineering Research Center, Sinotech Engineering Consultants, Inc., 6F, 280, Xinhu 2nd Rd., Neihu Dist., Taipei, 114, Taiwan (R.O.C.) E-mail:
| | - W C Hsiung
- Department of Aquatic Sciences, National Chiayi University, 300, Syuefu Rd., Chiayi, 600, Taiwan (R.O.C.)
| | - S M Chen
- Department of Aquatic Sciences, National Chiayi University, 300, Syuefu Rd., Chiayi, 600, Taiwan (R.O.C.)
| | - H S Chang
- Program for Translation Medicine, College of Medical Science and Technology, Taipei Medical University, 250 Wu-Hsing Street, Taipei, 110, Taiwan (R.O.C.)
| | - C P Chu
- Environment Engineering Research Center, Sinotech Engineering Consultants, Inc., 6F, 280, Xinhu 2nd Rd., Neihu Dist., Taipei, 114, Taiwan (R.O.C.) E-mail:
| | - Y J Chung
- Environment Engineering Research Center, Sinotech Engineering Consultants, Inc., 6F, 280, Xinhu 2nd Rd., Neihu Dist., Taipei, 114, Taiwan (R.O.C.) E-mail:
| | - Y T Huang
- Water Resource Planning Institute, Water Resource Agency, 1340, Jhong-Jheng Rd., Wu-Fong, Taichung, 413, Taiwan (R.O.C.)
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Han B, Song ZY, Wu JJ, Liu W, Liu BL, Ye XP, Chen X, Pan CM, Xu HY, Li L, Zhu H, Lu YL, Wu WL, Chen MD, Song HD, Qiao J. A novel intronic mutation and a missense mutation of MEN1 identified in two Chinese families with multiple endocrine neoplasia type 1. J Endocrinol Invest 2013; 36:162-7. [PMID: 22522645 DOI: 10.3275/8336] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
BACKGROUND Multiple endocrine neoplasia type 1 (MEN1) caused by MEN1 mutation is widely recognized. To date, 14 novel mutations were reported in Chinese and intronic mutations are getting more attention. AIM To explore clinical features and MEN1 mutations in two Chinese families suffering from MEN1. METHODS Nineteen individuals (10 males and 9 females) from two unrelated families with MEN1 were studied. Mutations of MEN1 were analyzed by direct sequencing of PCR products. In vitro splicing analysis was also performed with minigenes containing both wildtype and novel mutant fragments. Through the RNAstructure program, we analyzed the secondary structure of the wild type MEN1 pre-mRNA and then introduced T>G mutation at +2 donor splice site of intron 7. RESULTS Clinical features of 3 patients in two families were described, and 5 individuals were proven to be carriers of MEN1 mutation without apparent symptoms. A novel splicing site mutation of the intron 7 (IVS7+2 T→G) was identified in the first family. In vitro analysis also verified this mutation caused the aberrant splicing of MEN1 mRNA. With the RNAstructure program, we could figure out that the global secondary structure as well as the number of stems and loops of pre-mRNA greatly changed after this mutation. The mutation c. 1227 C>A (C409X) was identified in another family, which also caused the truncation of menin. CONCLUSION We reported a novel intronic mutation and a missense mutations in two Chinese families suffering from MEN1.
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Affiliation(s)
- B Han
- Department of Endocrinology, Shanghai Ninth People's Hospital, Shanghai, China
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Wu WL, Tan ZQ, Wu GJ, Yuan L, Zhu WL, Bao YL, Pan LY, Yang YJ, Zheng JX. Deacidification of crude low-calorie cocoa butter with liquid–liquid extraction and strong-base anion exchange resin. Sep Purif Technol 2013. [DOI: 10.1016/j.seppur.2012.10.014] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Chen Y, Zheng Q, Yang K, Zeng F, Lau SY, Wu WL, Huang S, Zhang J, Chen H, Xia N. Serological survey of antibodies to influenza A viruses in a group of people without a history of influenza vaccination. Clin Microbiol Infect 2011; 17:1347-9. [PMID: 21749549 DOI: 10.1111/j.1469-0691.2011.03538.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A serological survey for antibodies to influenza viruses was performed in China on a group of people without a history of influenza vaccination. Using the haemagglutination inhibition (HI) assay, we found seropositivity rates for seasonal H3N2 to be significantly higher than those for seasonal H1N1. Samples positive for antibodies to the pandemic (H1N1) 2009 virus increased from 0.6% pre-outbreak to 4.5% (p <0.01) at 1 year post-outbreak. Interestingly, HI and neutralization tests showed that 1.4% of people in the group have antibodies recognizing H9N2 avian influenza viruses, suggesting that infection with this subtype may be more common than previously thought.
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Affiliation(s)
- Y Chen
- National Institute of Diagnostics and Vaccine Development in Infectious Diseases, School of Life Sciences, Xiamen University, Xiamen, Fujian Province, China
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Wu WL, Gan WH, Tong ML, Li XL, Dai JZ, Zhang CM, Guo XR. Over-expression of NYGGF4 (PID1) inhibits glucose transport in skeletal myotubes by blocking the IRS1/PI3K/AKT insulin pathway. Mol Genet Metab 2011; 102:374-7. [PMID: 21185755 DOI: 10.1016/j.ymgme.2010.11.165] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.9] [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: 11/27/2010] [Accepted: 11/28/2010] [Indexed: 11/24/2022]
Abstract
INTRODUCTION Defects in insulin-stimulated glucose uptake in muscle are the important early events in the pathogenesis of insulin resistance. NYGGF4 (also named PID1) is a recently discovered gene which is suggested to be associated with obesity-associated insulin resistance. In this study, we aimed to investigate the effects of NYGGF4 on glucose uptake and insulin signaling in rat skeletal muscle cells. METHODS Rat L6 myoblasts were transfected with either an empty vector or an NYGGF4-expressing vector and induced to differentiate into mature L6 skeletal myotubes. Glucose uptake was determined by measuring uptake of 2-deoxy-d-[(3)H] glucose. Immunoblotting was performed to detect the translocation of insulin-sensitive glucose transporter 4 (GLUT4). Immunoblotting was also used to measure phosphorylation and total protein levels of the insulin signaling proteins including insulin receptor (IR), insulin receptor substrate 1 (IRS1), Akt, extracellular signal-regulated kinase 1 and 2 (ERK1/2), p38, and c-Jun-N-terminal kinase (JNK). RESULTS NYGGF4 over-expression in L6 skeletal myotubes reduced insulin-stimulated glucose uptake and impaired insulin-stimulated GLUT4 translocation. It also diminished insulin-stimulated tyrosine phosphorylation of IRS1 and serine phosphorylation of Akt without affecting the phosphorylation of IR, ERK1/2, p38, or JNK. CONCLUSIONS Over-expression of NYGGF4 inhibits glucose transport in skeletal myotubes by blocking the IRS1/PI3K/AKT insulin pathway. These observations highlight the potential role of NYGGF4 in glucose homeostasis and the development of insulin resistance in obesity.
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Affiliation(s)
- W L Wu
- Department of Pediatrics, Second affiliated Hospital of Nanjing Medical University, Nanjing, China
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Cheng VCC, Chan JFW, Wen X, Wu WL, Que TL, Chen H, Chan KH, Yuen KY. Infection of immunocompromised patients by avian H9N2 influenza A virus. J Infect 2011; 62:394-9. [PMID: 21356238 DOI: 10.1016/j.jinf.2011.02.007] [Citation(s) in RCA: 84] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2010] [Accepted: 02/19/2011] [Indexed: 12/16/2022]
Abstract
Avian influenza A (H9N2) virus is transmitted sporadically from avian species to human causing mild diseases in immunocompetent person. We report two cases of human infection in immunocompromised patients in Hong Kong between 2008 and 2009. One patient had uneventful recovery with viral shedding at day 10 after symptom onset despite her underlying acute lymphoblastic leukaemia. The other patient with post-bone marrow transplant chronic graft-versus-host disease and bronhioltis obliterans went into respiratory failure. Genetic analysis revealed that these cases were caused by different genetic variants which are circulating in poultry in this region. Review of literature identified another 9 human cases reported in Southern China since 1988. It is possible that human infection with H9N2 is more common than what has been recognized. Continuous surveillance of H9N2 influenza virus infection in human is warranted.
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Affiliation(s)
- Vincent C C Cheng
- Department of Microbiology, Queen Mary Hospital, Hong Kong Special Administrative Region, China
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Chang JJ, Tung WL, Wu WL, Su FC. Effect of bilateral reaching on affected arm motor control in stroke – with and without loading on unaffected arm. Disabil Rehabil 2009; 28:1507-16. [PMID: 17178614 DOI: 10.1080/09638280600646060] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
PURPOSE To investigate the effect of bilateral reaching, with/without inertial loading on the unaffected arm, on hemiparetic arm motor control in stroke. METHODS Twenty unilateral stroke patients were recruited. A three-dimensional optical motion capture system was used to measure the movement trajectory of the hemiparetic arm while performing three tasks: affected limb reaching forward; two-limb reaching forward; and two-limb reaching forward with inertia loading of 25% upper limb weight on the unaffected limb, respectively. Kinematical parameters were utilized to quantify the reaching performance of the affected arm. RESULTS No matter whether loading was applied on the unaffected arm or not, the bilateral reaching task did not significantly facilitate smoother and faster movement. Furthermore, during bilateral reaching task with/without loading on the unaffected arm, stroke patients showed slower movement, lower maximal movement velocity, feedback control dominant and discontinuous movements in the affected arm than the same task with unilateral reaching. Subjects showed the greatest active upper extremity range of motion in proximal joints during the bilateral reaching task without unaffected arm loading. The amount of trunk movement also increased during bilateral reaching either with or without loading on the unaffected arm. Patients with moderate upper extremity motor impairment performed more discontinuous movements and less active elbow range of motion during bilateral reaching tasks; however, those with mild upper extremity motor impairment performed smoother movements and demonstrated greater active elbow range of motion during bilateral reaching tasks. CONCLUSIONS Bilateral reaching tasks with/without loading on the unaffected arm could be considered as adding challenges during motor control training. Training with bilateral arm movements may be considered as a treatment strategy, and can be incorporated in stroke rehabilitation to facilitate greater arm active movement and improve motor control performance in the affected arm.
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Affiliation(s)
- J J Chang
- Institute of Biomedical Engineering, National Cheng Kung University, Tainan, Taiwan
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Li S, Yang MH, Zeng CA, Wu WL, Huang XF, Ji Y, Zeng JQ. Association of vitamin D receptor gene polymorphisms in Chinese patients with generalized aggressive periodontitis. J Periodontal Res 2008; 43:360-3. [PMID: 18205735 DOI: 10.1111/j.1600-0765.2007.01044.x] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
BACKGROUND AND OBJECTIVE The clinical features suggest that genetic factors may have a strong influence on susceptibility to aggressive periodontitis. The aim of this study was to investigate the association of vitamin D receptor gene polymorphisms with generalized aggressive periodontitis in Chinese patients. MATERIAL AND METHODS A restriction fragment length polymorphism (RFLP) for 10,438,141 C to T (rs1544410, BsmI), 10,382,063 A to G (rs731236, TaqI), 10,382,143 C to A (rs7975232, ApaI) and 10,416,201 A to G (rs2228570, FokI) of vitamin D receptor gene was analysed by polymerase chain reaction, followed by digestion with restriction enzymes and gel electrophoresis. The genotypes of 51 generalized aggressive periodontitis patients and 53 periodontally healthy control subjects were analysed. The genotypic and allelic frequencies of each polymorphism site for the patients and control subjects were compared. RESULTS The distribution of vitamin D receptor FokI genotypes and alleles between the two groups was significantly different (p = 0.043 and p = 0.012, respectively). The F allele seemed to increase the susceptibility of aggressive periodontitis (odds ratio = 2.02, 95% confidence interval = 1.16-3.50) in Chinese patients. There was no significant difference in the genotype distribution or the allele frequencies of vitamin D receptor BsmI, ApaI and TaqI between two groups. CONCLUSION The study indicates that FokI polymorphism of vitamin D receptor gene might be associated with generalized aggressive periodontitis in Chinese patients. In addition, the carriage of F allele increases the risk of developing generalized aggressive periodontitis.
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Affiliation(s)
- S Li
- Department of Stomatology, Medical School, Jinggangshan University, Ji'an, Jiangxi, China
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Chen X, Smith GJD, Zhou B, Qiu C, Wu WL, Li Y, Lu P, Duan L, Liu S, Yuan J, Yang G, Wang H, Cheng J, Jiang H, Peiris JSM, Chen H, Yuen KY, Zhong N, Guan Y. Avian influenza A (H5N1) infection in a patient in China, 2006. Influenza Other Respir Viruses 2007; 1:207-13. [PMID: 19453428 PMCID: PMC4941883 DOI: 10.1111/j.1750-2659.2007.00032.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
BACKGROUND Highly pathogenic avian influenza H5N1 virus has caused increasing human infection in Eurasia since 2004. So far, H5N1 human infection has been associated with over 50% mortality that is partly because of delay of diagnosis and treatment. OBJECTIVES AND METHODS Here, we report that an H5N1 influenza virus infected a 31-year-old patient in Shenzhen in June 2006. To identify the possible source of the infection, the human isolate and other H5N1 influenza viruses obtained from poultry and wild birds in southern China during the same period of time were characterized. RESULTS Genetic and antigenic analyses revealed that the human H5N1 influenza virus, Shenzhen/406H/06, is of purely avian origin and is most closely related to viruses detected in poultry and wild birds in Hong Kong in early 2006. CONCLUSIONS The findings of the present study suggest that the continued endemicity of H5N1 influenza virus in the poultry in southern China increases the chance for introduction of the virus to humans. This highlights the importance of continued surveillance of poultry and wild birds for determining the source for human H5N1 infection.
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Affiliation(s)
- X Chen
- Shenzhen Donghu Hospital, Shenzhen, China
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Duan L, Campitelli L, Fan XH, Leung YHC, Vijaykrishna D, Zhang JX, Donatelli I, Delogu M, Li KS, Foni E, Chiapponi C, Wu WL, Kai H, Webster RG, Shortridge KF, Peiris JSM, Smith GJD, Chen H, Guan Y. Characterization of low-pathogenic H5 subtype influenza viruses from Eurasia: implications for the origin of highly pathogenic H5N1 viruses. J Virol 2007; 81:7529-39. [PMID: 17507485 PMCID: PMC1933357 DOI: 10.1128/jvi.00327-07] [Citation(s) in RCA: 97] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Highly pathogenic avian influenza (HPAI) H5N1 viruses are now endemic in many Asian countries, resulting in repeated outbreaks in poultry and increased cases of human infection. The immediate precursor of these HPAI viruses is believed to be A/goose/Guangdong/1/96 (Gs/GD)-like H5N1 HPAI viruses first detected in Guangdong, China, in 1996. From 2000 onwards, many novel reassortant H5N1 influenza viruses or genotypes have emerged in southern China. However, precursors of the Gs/GD-like viruses and their subsequent reassortants have not been fully determined. Here we characterize low-pathogenic avian influenza (LPAI) H5 subtype viruses isolated from poultry and migratory birds in southern China and Europe from the 1970s to the 2000s. Phylogenetic analyses revealed that Gs/GD-like virus was likely derived from an LPAI H5 virus in migratory birds. However, its variants arose from multiple reassortments between Gs/GD-like virus and viruses from migratory birds or with those Eurasian viruses isolated in the 1970s. It is of note that unlike HPAI H5N1 viruses, those recent LPAI H5 viruses have not become established in aquatic or terrestrial poultry. Phylogenetic analyses revealed the dynamic nature of the influenza virus gene pool in Eurasia with repeated transmissions between the eastern and western extremities of the continent. The data also show reassortment between influenza viruses from domestic and migratory birds in this region that has contributed to the expanded diversity of the influenza virus gene pool among poultry in Eurasia.
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Affiliation(s)
- L Duan
- State Key Laboratory of Emerging Infectious Disease, Department of Microbiology, The University of Hong Kong, Pokfulam, Hong Kong, SAR, China
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Pu Y, Rafailovich MH, Sokolov J, Gersappe D, Peterson T, Wu WL, Schwarz SA. Mobility of polymer chains confined at a free surface. Phys Rev Lett 2001; 87:206101. [PMID: 11690488 DOI: 10.1103/physrevlett.87.206101] [Citation(s) in RCA: 41] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2001] [Indexed: 05/23/2023]
Abstract
Dynamic secondary ion mass spectrometry was used to investigate the chain mobility of polystyrene (MW ranging from 4.3 to 957 kg/mol) at the free surface. The data show that the diffusion coefficient was reduced relative to the bulk value within a distance, d < or = 4R(g), from the surface and scaled as 1/N(2.5) at fixed d. These results are in excellent agreement with self-consistent field calculations of the surface segmental distribution and provide the first direct confirmation of various theoretical models that predict asymmetric segmental fluctuation which arises from surface induced orientation of polymer chains.
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Affiliation(s)
- Y Pu
- Department of Materials Science and Engineering, State University of New York, Stony Brook, New York 11794-2275, USA
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Juang RS, Wu WL. A simple electrolyte for determination of small cations in natural waters by capillary electrophoresis. J Environ Sci Health A Tox Hazard Subst Environ Eng 2001; 36:935-946. [PMID: 11501316 DOI: 10.1081/ese-100104122] [Citation(s) in RCA: 2] [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] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Three simple electrolyte systems were tested for determination of four alkali and alkaline earth cations (K+, Na+, Ca2+, Mg2+) in aqueous sulfate solutions. The separation was achieved in a system of 5 mM 4-aminopyridine and 5% v/v methanol with indirect UV detection at 214 nm, in which the electrolyte pH was adjusted to be 4.30 by adding 1 M glycolic acid. Four cations were well separated within 5 min at an applied voltage of 15 kV. Linear relationships of the calibration curves were obtained up to 50 ppm for all four cations. To evaluate this electrolyte system, the determination of these cations was also conducted for real rain waters.
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Affiliation(s)
- R S Juang
- Department of Chemical Engineering, Yuan Ze University, Chung-Li 320, Taiwan.
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Abstract
The aim of this study was to develop an empirical model of parameter-based gait data, based on an artificial neural network and a genetic algorithm, for the assessment of patients after ankle arthrodesis. Ground reaction force vectors were measured by force platforms during level walking. Nine force parameters expressed in percentage of body weight and their chronologic incidence of occurrence expressed in percentage of stance phase period were used in modeling. Ten healthy persons and ten patients who had solid arthrodesis of the ankle were recruited in this study for developing the model. By applying the genetic algorithm neural network, the percentage of correct classification was 98.8% and the subset of discriminant parameters was be reduced to 9 out of 18. These key parameters were mainly related to the loading response and propulsive phase. This indicates that there was a reduction in the abilities in cushion impact and push off in the patients after ankle arthrodesis. Finally, the relative distance (Dr) was defined in this study and used in two new patients' examinations to demonstrate its clinical utility.
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Affiliation(s)
- W L Wu
- Department of Physical Therapy, Foo-Yin Institute of Technology, Kaohsiung, Taiwan
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Abstract
BACKGROUND In China the cesarean section rate increased significantly during the past four decades. This study examined the frequency and indications of cesarean birth in Shantou, a southern city in China. METHODS An analysis was conducted of the medical records of 1922 women who had cesarean deliveries at Shantou City 2nd People's Hospital between January 1990 and December 1997. The medical records of 10,490 women who gave birth during this period were examined. RESULTS The average rate of cesarean delivery during the 8-year period was 19.4 +/- 2.3 percent (means +/- standard error). From 1990 to 1997 the cesarean delivery rates ranged from 11.05 to 29.9 percent, respectively, although during this period the total annual number of deliveries decreased significantly from 1683 to 951. The rates of the most common indications per 100 women for cesarean delivery were failure to progress (23%), premature rupture of membranes (20%), fetal distress (19.4%), breech presentation (18.1%), uterine scar (14.6%), and prolonged pregnancy (11.3%). CONCLUSION The cesarean delivery rate in Shantou, China, has increased steadily and significantly between 1990 and 1997, despite a decrease in the total number of births during the same period. This study showed that on an individual basis vaginal delivery was often possible and reduction of the cesarean delivery rate could be achieved safely by paying greater heed to appropriate indications.
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Affiliation(s)
- W L Wu
- Department of Obstetrics and Gynecology, Shantou City 2nd People's Hospital, Guangdong Province, PR China
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Chan HC, Wu WL, So SC, Chung YW, Tsang LL, Wang XF, Yan YC, Luk SC, Siu SS, Tsui SK, Fung KP, Lee CY, Waye MM. Modulation of the Ca(2+)-activated Cl(-) channel by 14-3-3epsilon. Biochem Biophys Res Commun 2000; 270:581-7. [PMID: 10753667 DOI: 10.1006/bbrc.2000.2454] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.9] [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: 02/04/2023]
Abstract
We have previously reported an association of 14-3-3epsilon isoform with calmodulin. Using the voltage-clamp technique, the present study investigated the potential role of 14-3-3 in modulating the Ca(2+)-activated Cl(-) channel (CaCC) endogenously expressed in Xenopus oocytes. Injection of 14-3-3epsilon antisense oligodeoxynucleotides resulted in potentiation of the ionomycin-induced Cl(-) current, while 14-3-3 peptide and calmodulin inhibitor, W13, suppressed the antisense-potentiated current. The data suggest that 14-3-3epsilon plays an inhibitory role in modulating the CaCC by interacting with the calmodulin-dependent pathway. The potential role of 14-3-3epsilon in other tissues and its therapeutic potential for cystic fibrosis are discussed.
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Affiliation(s)
- H C Chan
- Epithelial Cell Biology Research Centre, Department of Physiology, Faculty of Medicine, Chinese University of Hong Kong, Shatin, N.T., Hong Kong, China
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Abstract
The purpose of this study was to employ a computerized motion analysis system to identify the effect of ankle arthrodesis on the three-dimensional kinematic behavior of the rear and fore foot during level walking. A three-segment rigid body model was used to describe the motion of the foot and ankle. The results demonstrated that sagittal plane motion of the hindfoot was significantly decreased in the foot of patients having had ankle arthrodesis compared to normal subjects. The kinematic data indicated a generalized stiffness of the hindfoot on the involved foot in the sagittal plane. Sagittal plane movement in the forefoot and transverse plane movements in the hindfoot and forefoot increased in patients compared to controls.
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Affiliation(s)
- W L Wu
- Institute of Biomedical Engineering, National Cheng Kung University, Tainan, Taiwan
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