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Zhang J, Chen W, Zhai R, Chen H, Shan Z. Application of noise reduction and heat insulation based on controlled-size polystyrene hollow microspheres. J IND ENG CHEM 2022. [DOI: 10.1016/j.jiec.2022.08.034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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2
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Wu T, Dai R, Shan Z, Chen H, Woo MW, Yi J. High efficient crosslinking of gelatin and preparation of its excellent flexible composite film using deep eutectic solvent. Process Biochem 2022. [DOI: 10.1016/j.procbio.2022.04.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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3
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Affiliation(s)
- Peng Liu
- The Key Laboratory of Leather Chemistry and Engineering Sichuan University Ministry of Education & National Engineering Laboratory for Clean Technology of Leather Manufacture College of Biomass Science and Engineering Sichuan University Chengdu 610065 China
| | - Xugang Dang
- Institute for Biomass and Function Materials & National Demonstration Centre for Experimental Light Chemistry Engineering Education College of Bioresources Chemistry and Materials Engineering Shaanxi University of Science and Technology Xi'an 710021 China
| | - Meng Wai Woo
- Department of Chemical & Materials Engineering Faculty of Engineering The University of Auckland New Zealand
| | - Sadaqat Ali Chattha
- Department of Leather & Fiber Technology University of Veterinary & Animal Sciences Lahore 54000 Pakistan
| | - Jingxian An
- Department of Chemical & Materials Engineering Faculty of Engineering The University of Auckland New Zealand
| | - Zhihua Shan
- The Key Laboratory of Leather Chemistry and Engineering Sichuan University Ministry of Education & National Engineering Laboratory for Clean Technology of Leather Manufacture College of Biomass Science and Engineering Sichuan University Chengdu 610065 China
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4
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Ding X, Wei B, Dai R, Chen H, Shan Z. Effect of collagen hydrolysate obtained from leather waste on the setting, hydration and crystallization process of gypsum. J IND ENG CHEM 2022. [DOI: 10.1016/j.jiec.2022.02.047] [Citation(s) in RCA: 1] [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: 10/19/2022]
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5
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Liu D, Zhang J, You C, Chen H, Shan Z. Study on the anhydrous condensation of collagen polypeptide and tricyanogen chloride. RSC Adv 2022; 12:20403-20411. [PMID: 35919613 PMCID: PMC9281489 DOI: 10.1039/d2ra02111k] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Accepted: 06/11/2022] [Indexed: 11/21/2022] Open
Abstract
The molecular weight of collagen-degrading polypeptides (CDPs) extracted using the alkali method from leather scraps must be expanded to improve its utilization effect.
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Affiliation(s)
- Donglei Liu
- National Engineering Laboratory for Clean Technology of Leather Manufacture, Sichuan University, Chengdu 610000, China
| | - Jiaxing Zhang
- National Engineering Laboratory for Clean Technology of Leather Manufacture, Sichuan University, Chengdu 610000, China
| | - Chuanrui You
- National Engineering Laboratory for Clean Technology of Leather Manufacture, Sichuan University, Chengdu 610000, China
| | - Hui Chen
- National Engineering Laboratory for Clean Technology of Leather Manufacture, Sichuan University, Chengdu 610000, China
| | - Zhihua Shan
- National Engineering Laboratory for Clean Technology of Leather Manufacture, Sichuan University, Chengdu 610000, China
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6
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Li J, Chen YL, Chen BH, Gan KF, Liu JH, Shan Z, Zhu R, Fan SW, Zhao FD. [Effects of cortical bone trajectory screw in adjacent-segment disease after posterior lumbar interbody fusion]. Zhonghua Yi Xue Za Zhi 2021; 101:3724-3729. [PMID: 34856700 DOI: 10.3760/cma.j.cn112137-20210416-00919] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the effect of the cortical bone trajectory (CBT) screw fixation combined with midline lumbar fusion (MIDLF) for adjacent spondylopathy after posterior lumbar interbody fusion. Methods: A retrospective analysis was conducted in 16 patients, including 9 males and 7 females, with a mean age of (68±6) years, who underwent revision surgery for adjacent spondylopathy after posterior lumbar fusion surgery using CBT combined with MIDLF technology in Sir Run Run Shaw Hospital, Zhejiang University from May 2013 to August 2019. The reasons for revision were radiculalgia in 4 cases, intermittent claudication in 10 cases and protrusive dissociate in 2 cases. Eleven cases had 1 segment fused in the first operation, while the other 5 cases received fusion in 2 segments. The average interval time between the first operation and the revision operation was (7.5±2.0) years. For the levels underwent revision, 1 case was L2/3, 6 cases were L3/4, 7 cases were L4/5 and 2 cases were L5/S1. Before the operation, all the patients took X-rays scans of the thoracic and lumbar spine. CT and MRI scans were also performed. The operation time, intraoperative bleeding, surgical complications, visual analog scale (VAS) of low back and leg pain before the operation and at each follow-up were all recorded. Oswestry disability index (ODI) questionnaire was used to evaluate the functional improvement of patients after the operation. Results: All operations were completed successfully. The operation time was 120-240 (170±30) mins, intraoperative bleeding was 100-280 (220±45) ml. One case had a slight split in the isthmus, and the screw was inserted smoothly after adjusting the insertion point. In one case, the cerebrospinal fluid leaked during the operation and was successfully treated with conservative methods including no pillow supine treatment and strengthened anti-infection. The average follow-up time was of (19.5±1.3) months. The VAS of low back pain was 2.9±1.7 before the operation and it was 1.8±0.5 at the last follow-up, and the difference was statistically significant (P<0.01). The VAS of leg pain was 5.9±1.5 before the operation and it was 1.5±0.4 at the last the follow-up (P<0.01). The ODI score was 34.5±3.2 preoperatively and it decreased to 12.6±4.2 at the last follow-up, the difference was statistically significant (P<0.01). Conclusion: CBT technique combined with MIDLF for the adjacent-segment disease after posterior lumbar interbody fusion is minimally invasive and convenient, with good clinical effects. This technique can be used as an option for the revision of adjacent spondylopathy.
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Affiliation(s)
- J Li
- Department of Orthopaedic Surgery, Ningbo Medical Center Lihuili Hospital, Ningbo 315000, China
| | - Y L Chen
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, Hangzhou 310016, China
| | - B H Chen
- Department of Orthopaedic Surgery, Ningbo Medical Center Lihuili Hospital, Ningbo 315000, China
| | - K F Gan
- Department of Orthopaedic Surgery, Ningbo Medical Center Lihuili Hospital, Ningbo 315000, China
| | - J H Liu
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, Hangzhou 310016, China
| | - Z Shan
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, Hangzhou 310016, China
| | - R Zhu
- Department of Orthopedics, Yiwu Chouzhou Hospital, Yiwu 322000, China
| | - S W Fan
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, Hangzhou 310016, China
| | - F D Zhao
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, Hangzhou 310016, China
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Zhang J, Cao S, Liu P, Shan Z. Electrochemical Oxidation of Starch Investigated by Single‐Current‐Transition Method. STARCH-STARKE 2021. [DOI: 10.1002/star.202100154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Jiaxing Zhang
- The Key Laboratory of Leather Chemistry and Engineering (Sichuan University) Ministry of Education Chengdu 610065 China
| | - Shengkui Cao
- The Key Laboratory of Leather Chemistry and Engineering (Sichuan University) Ministry of Education Chengdu 610065 China
| | - Peng Liu
- The Key Laboratory of Leather Chemistry and Engineering (Sichuan University) Ministry of Education Chengdu 610065 China
| | - Zhihua Shan
- The Key Laboratory of Leather Chemistry and Engineering (Sichuan University) Ministry of Education Chengdu 610065 China
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8
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Yang W, Shan Z. Application of wool keratin: an anti-ultraviolet wall material in spray drying. J Food Sci Technol 2021; 58:4235-4244. [PMID: 34538906 DOI: 10.1007/s13197-020-04897-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 07/01/2020] [Accepted: 07/08/2020] [Indexed: 11/30/2022]
Abstract
Low-molecular-weight keratin (LMWK) obtained from wool was employed as a wall material for the spray drying encapsulation of fish oil. Microcapsules with different LMWK contents were prepared, and their anti-ultraviolet performance and other features were studied. The results showed that LMWK was able to improve the encapsulation efficiency of fish oil because of its good emulsifying properties. When the LMWK content was increased from 0 to 10, 30 and 50%, the shelf life of the microcapsules under ultraviolet irradiation increased from 48 to 96 h, 144 h and 168 h, respectively. The strongest absorption efficiency of LMWK is shown in the UVc band. The chemical structure of LMWK did not change during an ultraviolet accelerating ageing test.
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Affiliation(s)
- Wenhua Yang
- College of Biomass Science and Engineering, Sichuan University, No.24 South Section 1, Yihuan Road, Chengdu, 610065 China.,National Engineering Laboratory for Clean Technology of Leather Manufacture, Sichuan University, Chengdu, 610065 China
| | - Zhihua Shan
- College of Biomass Science and Engineering, Sichuan University, No.24 South Section 1, Yihuan Road, Chengdu, 610065 China.,National Engineering Laboratory for Clean Technology of Leather Manufacture, Sichuan University, Chengdu, 610065 China
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Zhu Y, Cui Y, Shan Z, Dai R, Shi L, Chen H. Fabrication and characterization of a multi-functional and environmentally-friendly starch/organo-bentonite composite liquid dust suppressant. POWDER TECHNOL 2021. [DOI: 10.1016/j.powtec.2021.06.050] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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10
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Cui Y, Zhu Y, Dai R, Shan Z, Yi J, Chen H. The solubility and interactions of gelatin in “water-in-sodium acetate trihydrate/urea-DES” system. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.126916] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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11
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Zhai R, Chen H, Shan Z. Exploration of collagen cavitation based on peptide electrolysis. Sci Rep 2021; 11:17080. [PMID: 34429475 PMCID: PMC8384864 DOI: 10.1038/s41598-021-96533-y] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Accepted: 08/11/2021] [Indexed: 12/03/2022] Open
Abstract
Electrochemical modification of animal skin is a new material preparation method and new direction of research exploration. In this study, under the action of the electric field using NaCl as the supporting electrolyte, the effect of electrolysis on Glycyl-glycine(GlyGl), gelatin(Gel) and Three-dimensional rawhide collagen(3DC) were determined. The amino group of GlyGl is quickly eliminated within the anode region by electrolysis isolated by an anion exchange membrane. Using the same method, it was found that the molecular weight of Gel and the isoelectric point of the Gel decreased, and the viscosity and transparency of the Gel solution obviously changed. The electrolytic dissolution and structural changes of 3DC were further investigated. The results of TOC and TN showed that the organic matter in 3DC was dissolved by electrolysis, and the tissue cavitation was obvious. A new approach for the preparation of collagen-based multi-pore biomaterials by electrochemical method was explored.
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Affiliation(s)
- Rui Zhai
- The Key Laboratory of Leather Chemistry and Engineering of Ministry of Education, Sichuan University, Chengdu, 610065, China
| | - Hui Chen
- The Key Laboratory of Leather Chemistry and Engineering of Ministry of Education, Sichuan University, Chengdu, 610065, China.
| | - Zhihua Shan
- The Key Laboratory of Leather Chemistry and Engineering of Ministry of Education, Sichuan University, Chengdu, 610065, China.
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12
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Liu P, Woo MW, An J, Razmi R, Dang X, Shan Z. Spray-Drying-Assisted Electrochemical Synthesis: A Facile and Green Strategy for the Fabrication and Functionalization of Cellulose–Gelatin Powders. Ind Eng Chem Res 2021. [DOI: 10.1021/acs.iecr.1c01871] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Peng Liu
- The Key Laboratory of Leather Chemistry and Engineering Ministry of Education & National Engineering Laboratory for Clean Technology of Leather Manufacture, College of Biomass Science and Engineering, Sichuan University, Chengdu 610065, China
| | - Meng Wai Woo
- Department of Chemical & Materials Engineering, Faculty of Engineering, The University of Auckland, Auckland 1010, New Zealand
| | - Jingxian An
- Department of Chemical & Materials Engineering, Faculty of Engineering, The University of Auckland, Auckland 1010, New Zealand
| | - Ramin Razmi
- Department of Chemical & Materials Engineering, Faculty of Engineering, The University of Auckland, Auckland 1010, New Zealand
| | - Xugang Dang
- Institute for Biomass and Function Materials & National Demonstration Centre for Experimental Light Chemistry Engineering Education, College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science and Technology, Xi’an 710021, China
| | - Zhihua Shan
- The Key Laboratory of Leather Chemistry and Engineering Ministry of Education & National Engineering Laboratory for Clean Technology of Leather Manufacture, College of Biomass Science and Engineering, Sichuan University, Chengdu 610065, China
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Guo J, Dai R, Chen H, Liang Y, Shan Z. Research on the composite and functional characteristics of leather fiber mixed with nitrile rubber. J Leather Sci Eng 2021. [DOI: 10.1186/s42825-021-00052-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Abstract
The recycling of leather solid waste not only involves resource utilization and environmental protection but also has important significance for the sustainable development of the leather industry. In this paper, the leather waste was crushed into fibers, which were stabilized and mixed with nitrile-butadiene rubber (NBR). The mixture was milled and vulcanized and a composite NBR-SLF (Stabilized Leather Fiber) is prepared for sealing material. The physical and mechanical properties, water resistance, oil resistance and aging resistance of NBR-SLF were tested and analyzed. It is found that the optimized NBR-SLF not only reduces the cost of raw material, but also changes the physical and mechanical performance of NBR. As a sealing material, it satisfies the substitution of NBR in terms of hardness and thermal stability. Especially the anti-aging ability is better than NBR.
Graphical abstract
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14
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Ding X, Dai R, Chen H, Shan Z. Gelatin as green adhesive for the preparation of a multifunctional biobased cryogel derived from bamboo industrial waste. Carbohydr Polym 2020; 255:117340. [PMID: 33436183 DOI: 10.1016/j.carbpol.2020.117340] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [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: 08/10/2020] [Revised: 10/05/2020] [Accepted: 10/27/2020] [Indexed: 12/28/2022]
Abstract
The effective utilization of bamboo industrial waste to produce value-added products is an important subject. In this paper, a multifunctional biobased cryogel derived from bamboo industrial waste was successfully developed. Bamboo fibres were first extracted from bamboo industrial waste and then dispersed in the gelatin solution to produce bamboo fibres/gelatin cryogels (BFs/G cryogels) by a freeze-drying process. The hydrophobicities of BFs/G cryogels were further improved by modification with methyltrichlorosilane. The prepared BFs/G cryogels possessed low density (23.9-29.5 mg/cm3), high porosity (90.41-95.85%), low thermal conductivity (0.031‒0.047 W/m·K) and excellent sound-insulating performance. The presence of rigid bamboo fibres improved the mechanical performance of the BFs/G cryogel. Furthermore, the BFs/G cryogels exhibited high oil absorption capacities of 23-66 times that of their dry weights. The successful development of this cryogel provides a path for the efficient utilization of bamboo industrial waste as a renewable biomass resource.
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Affiliation(s)
- Xiaoliang Ding
- The Key Laboratory of Leather Chemistry and Engineering of the Ministry of Education, Sichuan University, Chengdu 610065, China
| | - Rui Dai
- The Key Laboratory of Leather Chemistry and Engineering of the Ministry of Education, Sichuan University, Chengdu 610065, China
| | - Hui Chen
- The Key Laboratory of Leather Chemistry and Engineering of the Ministry of Education, Sichuan University, Chengdu 610065, China
| | - Zhihua Shan
- The Key Laboratory of Leather Chemistry and Engineering of the Ministry of Education, Sichuan University, Chengdu 610065, China.
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Chen L, Dai R, Shan Z, Chen H. Fabrication and characterization of one high-hygroscopicity liquid starch-based mulching materials for facilitating the growth of plant. Carbohydr Polym 2020; 230:115582. [PMID: 31887860 DOI: 10.1016/j.carbpol.2019.115582] [Citation(s) in RCA: 9] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Revised: 11/04/2019] [Accepted: 11/06/2019] [Indexed: 11/18/2022]
Abstract
One high-performance liquid starch-based mulching materials (LSMM) was successfully fabricated by grafting polyacrylic acid (PAA) onto starch then crosslinking with N,N'-methylene-bisacrylamide (MBA). The effects of the dosage of acrylic acid on the performances of LSMM film had been explored. The LSMM was characterized by FTIR, solid state 13C NMR, XRD and SEM. Their application performances by spraying the LSMM on the soil surface also had been discussed. The PAA grafted onto starch significantly improved the properties of LSMM film (tensile strength 20.89 MPa, elongation at break 59.19 %, water absorbency 68.58 g/g and solubility in water 4.5 %). The PAA broke the hydrogen bonds and reduced the crystallinity of starch molecule, which can form the compact structure in LSSM film. As a result, the LSMM showed excellent relative hygroscopicity, water retention, degradability (weight loss 72.61 %) and the effect of facilitating the growth and germination ratio (84.00 %) of lettuce.
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Affiliation(s)
- Liwei Chen
- College of Biomass Science and Engineering, Sichuan University, Chengdu, 610065, China; The Key Laboratory of Leather Chemistry and Engineering (Sichuan University), Ministry of Education, Chengdu, 610065, China
| | - Rui Dai
- College of Biomass Science and Engineering, Sichuan University, Chengdu, 610065, China; The Key Laboratory of Leather Chemistry and Engineering (Sichuan University), Ministry of Education, Chengdu, 610065, China
| | - Zhihua Shan
- College of Biomass Science and Engineering, Sichuan University, Chengdu, 610065, China; The Key Laboratory of Leather Chemistry and Engineering (Sichuan University), Ministry of Education, Chengdu, 610065, China
| | - Hui Chen
- College of Biomass Science and Engineering, Sichuan University, Chengdu, 610065, China; The Key Laboratory of Leather Chemistry and Engineering (Sichuan University), Ministry of Education, Chengdu, 610065, China.
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Sun J, Teng D, Li C, Peng S, Mao J, Wang W, Xie X, Fan C, Li C, Meng T, Zhang S, Du J, Gao Z, Shan Z, Teng W. Association between iodine intake and thyroid autoantibodies: a cross-sectional study of 7073 early pregnant women in an iodine-adequate region. J Endocrinol Invest 2020; 43:43-51. [PMID: 31264141 DOI: 10.1007/s40618-019-01070-1] [Citation(s) in RCA: 7] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Accepted: 06/04/2019] [Indexed: 12/13/2022]
Abstract
PURPOSE The association between iodine intake and thyroid autoimmunity has been debated, especially in pregnant women. This study aimed to investigate thyroid autoantibodies and their association with iodine intake and hypothyroidism in early pregnancy. METHODS 7073 early pregnant women from an iodine-sufficient region participated in this study. Urinary iodine concentrations (UICs) were measured using an ammonium persulfate method. Serum thyroid peroxidase antibody (TPOAb), thyroglobulin antibody (TgAb), thyroid-stimulating hormone (TSH), free thyroxine (FT4), and Tg were determined using an electrochemiluminescence immunoassay. RESULTS Iodine deficiency (UIC < 100 μg/L) was associated with higher risks of TPOAb positivity [adjusted odds ratio (aOR) = 1.64, 95% confidence interval [CI] (1.29-2.08)] and TgAb positivity [aOR = 1.44, 95% CI (1.16-1.80)]. Women with isolated TPOAb positivity, isolated TgAb positivity, or both TPOAb and TgAb positivity had a 14.64-fold, 7.83-fold, and 44.69-fold increased risk of overt hypothyroidism, and a 4.36-fold, 2.86-fold, and 6.26-fold increased risk of subclinical hypothyroidism, respectively. Moreover, the risks of overt and subclinical hypothyroidism in women with a high TPOAb titer were 16.99 and 4.80 times that in TPOAb-negative women, respectively. The risk of overt hypothyroidism in women with a high TgAb titer was 6.97 times that in TgAb-negative women. CONCLUSIONS Our work demonstrates that iodine deficiency during early pregnancy is an independent risk factor for both TPOAb positivity and TgAb positivity. Furthermore, positivity for both autoantibodies and a high thyroid autoantibody titer are associated with significantly higher risks of overt and subclinical hypothyroidism.
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Affiliation(s)
- J Sun
- Department of Endocrinology and Metabolism, Institute of Endocrinology, Liaoning Provincial Key Laboratory of Endocrine Diseases, The First Affiliated Hospital of China Medical University, China Medical University, No. 155, North Nanjing Street, Heping District, Shenyang, 110001, China
| | - D Teng
- Department of Endocrinology and Metabolism, Institute of Endocrinology, Liaoning Provincial Key Laboratory of Endocrine Diseases, The First Affiliated Hospital of China Medical University, China Medical University, No. 155, North Nanjing Street, Heping District, Shenyang, 110001, China
| | - C Li
- Department of Endocrinology and Metabolism, Institute of Endocrinology, Liaoning Provincial Key Laboratory of Endocrine Diseases, The First Affiliated Hospital of China Medical University, China Medical University, No. 155, North Nanjing Street, Heping District, Shenyang, 110001, China
| | - S Peng
- Department of Endocrinology and Metabolism, Institute of Endocrinology, Liaoning Provincial Key Laboratory of Endocrine Diseases, The First Affiliated Hospital of China Medical University, China Medical University, No. 155, North Nanjing Street, Heping District, Shenyang, 110001, China
| | - J Mao
- Department of Endocrinology and Metabolism, Institute of Endocrinology, Liaoning Provincial Key Laboratory of Endocrine Diseases, The First Affiliated Hospital of China Medical University, China Medical University, No. 155, North Nanjing Street, Heping District, Shenyang, 110001, China
| | - W Wang
- Department of Endocrinology and Metabolism, Institute of Endocrinology, Liaoning Provincial Key Laboratory of Endocrine Diseases, The First Affiliated Hospital of China Medical University, China Medical University, No. 155, North Nanjing Street, Heping District, Shenyang, 110001, China
| | - X Xie
- Department of Endocrinology and Metabolism, Institute of Endocrinology, Liaoning Provincial Key Laboratory of Endocrine Diseases, The First Affiliated Hospital of China Medical University, China Medical University, No. 155, North Nanjing Street, Heping District, Shenyang, 110001, China
| | - C Fan
- Department of Endocrinology and Metabolism, Institute of Endocrinology, Liaoning Provincial Key Laboratory of Endocrine Diseases, The First Affiliated Hospital of China Medical University, China Medical University, No. 155, North Nanjing Street, Heping District, Shenyang, 110001, China
| | - C Li
- Department of Obstetrics and Gynecology, Shenyang Fifth People's Hospital, Shenyang, 110023, China
| | - T Meng
- Department of Obstetrics and Gynecology, The First Hospital of China Medical University, Shenyang, 110001, China
| | - S Zhang
- Department of Endocrinology, No. 202 Hospital of People's Liberation Army, Shenyang, 110003, China
| | - J Du
- Department of Endocrinology, The First Affiliated Hospital of Dalian Medical University, Dalian, 116044, China
| | - Z Gao
- Department of Endocrinology, Dalian Municipal Central Hospital Affiliated of Dalian Medical University, Dalian, 116033, China
| | - Z Shan
- Department of Endocrinology and Metabolism, Institute of Endocrinology, Liaoning Provincial Key Laboratory of Endocrine Diseases, The First Affiliated Hospital of China Medical University, China Medical University, No. 155, North Nanjing Street, Heping District, Shenyang, 110001, China.
| | - W Teng
- Department of Endocrinology and Metabolism, Institute of Endocrinology, Liaoning Provincial Key Laboratory of Endocrine Diseases, The First Affiliated Hospital of China Medical University, China Medical University, No. 155, North Nanjing Street, Heping District, Shenyang, 110001, China.
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Chen H, Chen L, Dang X, Shan Z, Dai R, Wang Y. The structure and properties of granular cold-water-soluble starch by a NaOH/urea aqueous solution. Int J Biol Macromol 2019; 141:732-737. [DOI: 10.1016/j.ijbiomac.2019.08.226] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2019] [Revised: 08/26/2019] [Accepted: 08/27/2019] [Indexed: 10/26/2022]
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Gong X, Liu A, Li Y, Sun H, Li Y, Li C, Yu X, Fan C, Shan Z, Teng W. The impact of isolated maternal hypothyroxinemia during the first and second trimester of gestation on pregnancy outcomes: an intervention and prospective cohort study in China. J Endocrinol Invest 2019; 42:599-607. [PMID: 30334197 PMCID: PMC6476837 DOI: 10.1007/s40618-018-0960-7] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/12/2018] [Accepted: 09/23/2018] [Indexed: 12/21/2022]
Abstract
OBJECTIVES To explore the effect of isolated maternal hypothyroxinemia (IMH) during the first and second trimester of gestation on pregnancy outcomes. To explore whether levothyroxine (L-T4) treatment of women who had IMH identified in the first trimester improves pregnancy outcomes. METHODS Women in the early pregnancy in the iodine-sufficient area (n = 3398) were recruited to this prospective cohort study (ChiCTR-TRC-12002326). Serum thyroid-stimulating hormone (TSH), free thyroxine (FT4), and thyroid peroxidase antibody (TPOAb) were detected. Women with IMH before 12 weeks chose to receive L-T4 or remain untreated. The L-T4 dose was adjusted to attain a normal FT4 and TSH level. Pregnancy outcomes were evaluated during follow-up. RESULTS IMH in the first trimester was not associated with increased risk of adverse pregnancy outcome compared with controls. The incidence of macrosomia (p = 0.022) and gestational hypertension (p = 0.018) was significantly higher in IMH identified in the second trimester of gestation compared with controls. IMH identified in the second trimester of gestation was a risk factor for macrosomia [adjusted odds ratio (aOR) 1.942, 95% CI 1.076-3.503, p = 0.027] and gestational hypertension (aOR 4.203, 95% CI 1.611-10.968, p < 0.01), when body mass index in the early pregnancy was < 25 kg/m2. CONCLUSIONS IMH in the first trimester did not increase the risk of adverse outcomes irrespective of whether women received L-T4 treatment. However, IMH identified in the second trimester was associated with increased risk of adverse pregnancy outcome. The results suggest that thyroid function follow-up during the second trimester is necessary, even if thyroid function is normal during the first trimester.
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Affiliation(s)
- X Gong
- Department of Endocrinology and Metabolism, Institute of Endocrinology, Liaoning Provincial Key Laboratory of Endocrine Diseases, The First Affiliated Hospital of China Medical University, Shenyang, 110001, People's Republic of China
| | - A Liu
- Department of Endocrinology and Metabolism, Institute of Endocrinology, Liaoning Provincial Key Laboratory of Endocrine Diseases, The First Affiliated Hospital of China Medical University, Shenyang, 110001, People's Republic of China
| | - Y Li
- Department of Endocrinology and Metabolism, Anshan Central Hospital, Anshan, 114001, People's Republic of China
| | - H Sun
- Department of Rheumatism and Hematology, First Hospital of Dandong, Dandong, 118000, People's Republic of China
| | - Y Li
- Department of Endocrinology and Metabolism, Institute of Endocrinology, Liaoning Provincial Key Laboratory of Endocrine Diseases, The First Affiliated Hospital of China Medical University, Shenyang, 110001, People's Republic of China
| | - C Li
- Department of Endocrinology and Metabolism, Institute of Endocrinology, Liaoning Provincial Key Laboratory of Endocrine Diseases, The First Affiliated Hospital of China Medical University, Shenyang, 110001, People's Republic of China
| | - X Yu
- Department of Endocrinology and Metabolism, Institute of Endocrinology, Liaoning Provincial Key Laboratory of Endocrine Diseases, The First Affiliated Hospital of China Medical University, Shenyang, 110001, People's Republic of China
| | - C Fan
- Department of Endocrinology and Metabolism, Institute of Endocrinology, Liaoning Provincial Key Laboratory of Endocrine Diseases, The First Affiliated Hospital of China Medical University, Shenyang, 110001, People's Republic of China
| | - Z Shan
- Department of Endocrinology and Metabolism, Institute of Endocrinology, Liaoning Provincial Key Laboratory of Endocrine Diseases, The First Affiliated Hospital of China Medical University, Shenyang, 110001, People's Republic of China.
| | - W Teng
- Department of Endocrinology and Metabolism, Institute of Endocrinology, Liaoning Provincial Key Laboratory of Endocrine Diseases, The First Affiliated Hospital of China Medical University, Shenyang, 110001, People's Republic of China
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Li R, Ton Loontjens J, Shan Z. The varying mass ratios of soft and hard segments in waterborne polyurethane films: Performances of thermal conductivity and adhesive properties. Eur Polym J 2019. [DOI: 10.1016/j.eurpolymj.2019.01.025] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [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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20
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Yang J, Shan Z, Zhang Y, Chen L. Stabilization and cyclic utilization of chrome leather shavings. Environ Sci Pollut Res Int 2019; 26:4680-4689. [PMID: 30565107 DOI: 10.1007/s11356-018-3687-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [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: 09/14/2018] [Accepted: 11/05/2018] [Indexed: 06/09/2023]
Abstract
For the sake of the safe and efficient cyclic utilization of chrome leather shavings (CLS), the temporary stabilization of CLS during the storage and transport processes was optimized. Afterwards, the large-scale stabilized CLS degradation and collagen degradation product (CDP) extraction were completed. In this research, hydroxyapatite (HAP) and calcium hydroxide (Ca(OH)2) were for the first time used as stabilizers in the stabilization of CLS. The results showed that both Ca(OH)2 and HAP displayed resistance to chrome leaching, but HAP provided better stabilization effect than Ca(OH)2. The optimized stabilization conditions giving lower chromium leaching concentration were selected: 2% HAP, temperature 300 °C, reaction time 60 min, and initially added water contents of 50%. The reason for HAP and Ca(OH)2 stabilization was proved by energy dispersive X-ray spectroscopy (EDS). Subsequently, the exploitation value of the stabilized CLS was described by large-scale experiment. The hydrolysis of stabilized CLS could obtain the collagen degradation product (CDP), which had 3.52% of free amino content and a molecular weight of 3.4~30 kDa. The filter residue was treated by 5% sulfuric acid solution extraction and pressure filtration again. The extraction solution and final filter residue were dried separately to obtain chromium-containing organic compounds (COP) and industrial gypsum. The COP, used as a filling for tannery, contains 9.37% Cr2O3 content and 90.6% organic content. The industrial gypsum contains 68.37% CaSO4, 0.13% Cr2O3, and 31.5% residual organic or inorganic compounds, which can be used in building materials. No waste water or solid waste was discharged in this experiment process.
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Affiliation(s)
- Jiangen Yang
- Key Laboratory of Leather Chemistry and Engineering of the Ministry of Education, Sichuan University, Chengdu, 610065, China
| | - Zhihua Shan
- Key Laboratory of Leather Chemistry and Engineering of the Ministry of Education, Sichuan University, Chengdu, 610065, China.
| | - Yiwei Zhang
- Key Laboratory of Leather Chemistry and Engineering of the Ministry of Education, Sichuan University, Chengdu, 610065, China
| | - Liwei Chen
- Key Laboratory of Leather Chemistry and Engineering of the Ministry of Education, Sichuan University, Chengdu, 610065, China
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21
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Dang X, Chen H, Shan Z, Zhen W, Yang M. The oxidation of potato starch by Electro-Fenton system in the presence of Fe(II) ions. Int J Biol Macromol 2019; 121:113-119. [DOI: 10.1016/j.ijbiomac.2018.10.012] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2018] [Revised: 09/20/2018] [Accepted: 10/01/2018] [Indexed: 11/15/2022]
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22
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Tang X, Allain JP, Wang H, Rong X, Chen J, Huang K, Xu R, Wang M, Huang J, Liao Q, Shan Z, Luo S, Li T, Li C, Fu Y. Incidence of hepatitis B virus infection in young Chinese blood donors born after mandatory implementation of neonatal hepatitis B vaccination nationwide. J Viral Hepat 2018; 25:1008-1016. [PMID: 29624818 DOI: 10.1111/jvh.12901] [Citation(s) in RCA: 20] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/26/2017] [Accepted: 02/16/2018] [Indexed: 01/17/2023]
Abstract
This study was carried out to determine the incidence of hepatitis B virus (HBV) infection in the young generation born after mandatory implementation of hepatitis B vaccination since 1992. Repeat blood donors born between 1992 and 1997 were enrolled, who gave blood at least twice during the past 3 years. Donors were tested for HBV infection markers of HBsAg, anti-HBc, anti-HBs and viral DNA by immunoassays (EIAs) and nucleic acid tests (NAT). A total of 14 937 pre-donation screening qualified young repeat donors aged 18-23 years were tested with 9 (0.06%) being HBsAg by EIA and 10 (1:1494) HBV DNA positive by Ultrio NAT (10.4 IU/mL), respectively. HBV DNA was further detected in 1:192 (9/1732) anti-HBc+ repeat donors with Ultrio Plus NAT (3.4 IU/mL). Most cases were identified as occult HBV infection (OBI). Of 14 937 repeat donors, 20.9% were anti-HBc+ positive, while approximately 50% of 12 024 repeat donors were anti-HBs negative or had levels <100 IU/L. HBsAg+ or OBI strains were classified as wild type of genotype B or genotype C. Incident HBV infection in repeat donors was approximately 1:18.5 person-years (1.1%/year) but significantly less frequent in donors with confirmed HBV vaccination (2.4%-3.3%) than those unsure of vaccination status (10.5%; P = .0023). Hepatitis B virus vaccination appears largely protective of HBV infection, but incidence of infections increases in young adults with mostly undetectable or low anti-HBs or occasionally high anti-HBs. A boost of hepatitis B vaccine for adolescents prior to age 18 years may reduce HBV infection, and implementation of more sensitive NAT in blood donation screening may improve HBV safety in blood transfusion.
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Affiliation(s)
- X Tang
- Department of Transfusion Medicine, School of Laboratory Medicine and Biotechnology, Southern Medical University, Guangzhou, China.,Guangzhou Blood Center, Guangzhou, China
| | - J-P Allain
- Department of Transfusion Medicine, School of Laboratory Medicine and Biotechnology, Southern Medical University, Guangzhou, China.,University of Cambridge, Cambridge, UK
| | - H Wang
- Guangzhou Blood Center, Guangzhou, China
| | - X Rong
- Guangzhou Blood Center, Guangzhou, China
| | - J Chen
- Guangzhou Blood Center, Guangzhou, China
| | - K Huang
- Guangzhou Blood Center, Guangzhou, China
| | - R Xu
- Guangzhou Blood Center, Guangzhou, China
| | - M Wang
- Guangzhou Blood Center, Guangzhou, China
| | - J Huang
- Guangzhou Blood Center, Guangzhou, China
| | - Q Liao
- Guangzhou Blood Center, Guangzhou, China
| | - Z Shan
- Guangzhou Blood Center, Guangzhou, China
| | - S Luo
- Department of Transfusion Medicine, School of Laboratory Medicine and Biotechnology, Southern Medical University, Guangzhou, China
| | - T Li
- Department of Transfusion Medicine, School of Laboratory Medicine and Biotechnology, Southern Medical University, Guangzhou, China
| | - C Li
- Department of Transfusion Medicine, School of Laboratory Medicine and Biotechnology, Southern Medical University, Guangzhou, China.,School of Public Health, Southern Medical University, Guangzhou, China
| | - Y Fu
- Department of Transfusion Medicine, School of Laboratory Medicine and Biotechnology, Southern Medical University, Guangzhou, China.,Guangzhou Blood Center, Guangzhou, China
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23
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Affiliation(s)
- Yiwei Zhang
- Key Laboratory of Leather Chemistry and Engineering, Ministry of Education; Sichuan University; Chengdu 610065 China
| | - Benmin Zhang
- Key Laboratory of Leather Chemistry and Engineering, Ministry of Education; Sichuan University; Chengdu 610065 China
| | - Zhihua Shan
- Key Laboratory of Leather Chemistry and Engineering, Ministry of Education; Sichuan University; Chengdu 610065 China
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24
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Dang X, Chen H, Dai R, Wang Y, Shan Z. Electrochemical-Assisted Synthesis, Spray Granulation and Characterization of Oxidized Corn Starch–Gelatin. Ind Eng Chem Res 2018. [DOI: 10.1021/acs.iecr.8b00665] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Xugang Dang
- The Key Laboratory of Leather Chemistry and Engineering, Sichuan University, Ministry of Education, Chengdu 610065, China
- National Engineering Laboratory for Clean Technology of Leather Manufacture, Sichuan University, Chengdu 610065, China
| | - Hui Chen
- The Key Laboratory of Leather Chemistry and Engineering, Sichuan University, Ministry of Education, Chengdu 610065, China
- National Engineering Laboratory for Clean Technology of Leather Manufacture, Sichuan University, Chengdu 610065, China
| | - Rui Dai
- Sichuan University, Chengdu 610065, China
| | - Yajuan Wang
- School of Materials and Chemical Engineering, Ningbo University of Technology, Ningbo 315016, China
| | - Zhihua Shan
- The Key Laboratory of Leather Chemistry and Engineering, Sichuan University, Ministry of Education, Chengdu 610065, China
- National Engineering Laboratory for Clean Technology of Leather Manufacture, Sichuan University, Chengdu 610065, China
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25
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26
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Dang X, Shan Z, Chen H. Biodegradable films based on gelatin extracted from chrome leather scrap. Int J Biol Macromol 2018; 107:1023-1029. [DOI: 10.1016/j.ijbiomac.2017.09.068] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2016] [Revised: 09/10/2017] [Accepted: 09/18/2017] [Indexed: 10/18/2022]
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27
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Fan Y, Jiang E, Hahka T, Chen QH, Yan J, Shan Z. Orexin A increases sympathetic nerve activity through promoting expression of proinflammatory cytokines in Sprague Dawley rats. Acta Physiol (Oxf) 2018; 222:10.1111/apha.12963. [PMID: 28872777 PMCID: PMC6064186 DOI: 10.1111/apha.12963] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2017] [Revised: 08/28/2017] [Accepted: 08/30/2017] [Indexed: 12/31/2022]
Abstract
AIM Accumulating evidence suggests that orexin signalling is involved in the regulation of blood pressure and cardiovascular function. However, the underlying mechanisms are not clear. Here, we test the hypothesis that upregulated orexin A signalling in the paraventricular nucleus (PVN) increases sympathetic nerve activity (SNA) through stimulating expression of proinflammatory cytokines (PICs). METHODS In vivo sympathetic nerve recordings were performed to test the impact of PVN orexin signalling on sympathetic outflow in Sprague Dawley (SD) rats. Real-time PCR was carried out to assess effects of central administration of orexin A on PVN PICs expression in SD rats. To test whether orexin A-induced increases in PICs were exclusively mediated by orexin receptor 1 (OX1R), OX1R-expressing PC12 (PC12-OX1R) cells were incubated with different dose of orexin A, and then, PICs mRNA and immunoreactivity were measured. RESULTS Orexin A microinjection (25 pmol) into the PVN significantly increased splanchnic SNA (93.5%) and renal SNA (83.3%) in SD rats, and these increases were attenuated by OX1R antagonist SB408124. Intracerebroventricular injection of orexin A (0.2 nmol) into SD rats increased mRNA levels of PICs including IL-1-β (2.7-fold), IL-6 (1.7-fold) and TNF-α (1.5-fold), as well as Fra1 (1.6-fold) in the PVN. Orexin A treatment in PC12-OX1R cells resulted in a dose- and time-dependent increase in the expression of PICs and Fra1, a subunit of AP1 transcriptional factor. The increase in the PICs was blocked by AP1 blocker curcumin. CONCLUSION Paraventricular nucleus orexin system activation is involved in SNA regulation maybe through triggering AP1-PICs pathway.
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Affiliation(s)
- Y Fan
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi, China
- Department of Kinesiology and Integrative Physiology, Michigan Technological University, Houghton, MI, USA
| | - E Jiang
- Department of Kinesiology and Integrative Physiology, Michigan Technological University, Houghton, MI, USA
- College of Nursing and Health, Henan University, Kaifeng, Henan, China
| | - T Hahka
- Department of Kinesiology and Integrative Physiology, Michigan Technological University, Houghton, MI, USA
| | - Q H Chen
- Department of Kinesiology and Integrative Physiology, Michigan Technological University, Houghton, MI, USA
- Biotech Research Center, Michigan Technological University, Houghton, MI, USA
| | - J Yan
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi, China
| | - Z Shan
- Department of Kinesiology and Integrative Physiology, Michigan Technological University, Houghton, MI, USA
- Biotech Research Center, Michigan Technological University, Houghton, MI, USA
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28
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Zhang J, Liao L, Zhu J, Wan X, Xie M, Zhang H, Zhang M, Lu L, Yang H, Jing D, Liu X, Yu S, Lu XL, Chen C, Shan Z, Wang M. Osteochondral Interface Stiffening in Mandibular Condylar Osteoarthritis. J Dent Res 2018; 97:563-570. [PMID: 29298566 DOI: 10.1177/0022034517748562] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
Osteoarthritis (OA) of the temporomandibular joint (TMJ) is associated with dental biomechanics. A major change during OA progression is the ossification of the osteochondral interface. This study investigated the formation, radiological detectability, and mechanical property of the osteochondral interface at an early stage, the pathogenesis significance of which in OA progression is of clinical interest and remains elusive for the TMJ. Unilateral anterior crossbite (UAC) was performed on 6-wk-old rats as we previously reported. TMJs were harvested at 4, 12, and 20 wk. The progression of TMJ OA was evaluated using a modified Osteoarthritis Research Society International (OARSI) score system. Osteochondral interface was investigated by quantifying the thickness via von Kossa staining of histological slices and in vivo calcium deposition by calcein injection. Tissue ossification was imaged by micro-computed tomography (CT). Mechanical properties were measured at nanoscale using dynamic indentation. Time-dependent TMJ cartilage lesions were elicited by UAC treatment. Geometric change of the condyle head and increased value of the OARSI score were evident in UAC TMJs. At the osteochondral interface, there was not only enhanced deep-zone cartilage calcification but also calcium deposition at the osseous boundary. The thickness, density, and stiffness of the osteochondral interface were all significantly increased. The enhanced ossification of the osteochondral interface is a joint outcome of the aberrant deeper cartilage calcification at the superior region and promoted formation of subchondral cortical bone at the inferior region. The micro-CT detectable ossification from an early stage thus is of diagnostic significance. Although the environment of the cartilage and subchondral bone could be changed due to the stiffness of the interface, whether or not the stiffened interface would accelerate OA progress remains to be confirmed. With that evidence, the osteochondral interface could be a new diagnostic and therapeutic target of the mechanically initiated OA in the TMJ.
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Affiliation(s)
- J Zhang
- 1 State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi International Joint Research Center for Oral Diseases, Department of Oral Anatomy and Physiology and TMD, School of Stomatology, the Fourth Military Medical University, Xi'an, China
| | - L Liao
- 1 State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi International Joint Research Center for Oral Diseases, Department of Oral Anatomy and Physiology and TMD, School of Stomatology, the Fourth Military Medical University, Xi'an, China.,2 Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, Department of Implant Dentistry, College of Stomatology, Xi'an Jiaotong University, Xi'an, China
| | - J Zhu
- 3 Center for Advancing Materials Performance from the Nanoscale (CAMP-Nano) & Hysitron Applied Research Center in China (HARCC), State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an, China
| | - X Wan
- 1 State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi International Joint Research Center for Oral Diseases, Department of Oral Anatomy and Physiology and TMD, School of Stomatology, the Fourth Military Medical University, Xi'an, China
| | - M Xie
- 1 State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi International Joint Research Center for Oral Diseases, Department of Oral Anatomy and Physiology and TMD, School of Stomatology, the Fourth Military Medical University, Xi'an, China
| | - H Zhang
- 1 State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi International Joint Research Center for Oral Diseases, Department of Oral Anatomy and Physiology and TMD, School of Stomatology, the Fourth Military Medical University, Xi'an, China
| | - M Zhang
- 1 State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi International Joint Research Center for Oral Diseases, Department of Oral Anatomy and Physiology and TMD, School of Stomatology, the Fourth Military Medical University, Xi'an, China
| | - L Lu
- 1 State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi International Joint Research Center for Oral Diseases, Department of Oral Anatomy and Physiology and TMD, School of Stomatology, the Fourth Military Medical University, Xi'an, China
| | - H Yang
- 1 State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi International Joint Research Center for Oral Diseases, Department of Oral Anatomy and Physiology and TMD, School of Stomatology, the Fourth Military Medical University, Xi'an, China
| | - D Jing
- 4 School of Biomedical Engineering, the Fourth Military Medical University, Xi'an, China
| | - X Liu
- 1 State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi International Joint Research Center for Oral Diseases, Department of Oral Anatomy and Physiology and TMD, School of Stomatology, the Fourth Military Medical University, Xi'an, China
| | - S Yu
- 1 State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi International Joint Research Center for Oral Diseases, Department of Oral Anatomy and Physiology and TMD, School of Stomatology, the Fourth Military Medical University, Xi'an, China
| | - X L Lu
- 5 Department of Mechanical Engineering, University of Delaware, Newark, DE, USA
| | - C Chen
- 6 Department of Health Statistics, the Fourth Military Medical University, Xi'an, China
| | - Z Shan
- 3 Center for Advancing Materials Performance from the Nanoscale (CAMP-Nano) & Hysitron Applied Research Center in China (HARCC), State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an, China
| | - M Wang
- 1 State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi International Joint Research Center for Oral Diseases, Department of Oral Anatomy and Physiology and TMD, School of Stomatology, the Fourth Military Medical University, Xi'an, China
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29
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Xiong H, Rong X, Wang M, Xu R, Huang K, Liao Q, Huang J, Chen J, Li C, Tang X, Shan Z, Zhang M, Nelson K, Fu Y. HBV/HCV co-infection is associated with a high level of HCV spontaneous clearance among drug users and blood donors in China. J Viral Hepat 2017; 24:312-319. [PMID: 27943542 DOI: 10.1111/jvh.12644] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/29/2016] [Accepted: 09/20/2016] [Indexed: 12/11/2022]
Abstract
Understanding the biology of spontaneous clearance of hepatitis C virus (HCV) infection could lead to improved strategies to prevent the sequelae associated with chronic HCV infection. Chronic infections with hepatitis virus are very common in China, but the factors associated with spontaneous clearance of HCV have not been adequately studied. We evaluated the spontaneous clearance of HCV among 1918 drug users and 1526 HCV-seropositive blood donors in Guangzhou, China. Among participants who were co-infected with hepatitis B virus (HBV), 41.38% of drug users and 39.47% of blood donors had cleared their HCV infection without antiviral therapy compared to 9.41% of drug users and 16.73% of blood donors who were mono-infected with a single virus (P<.01). The proportion of subjects who had cleared their HCV infection was significantly greater in the co-infected subjects whose serum HBV DNA was greater than 2000IU/mL than those with lower levels. A multiple logistic regression analysis found female gender, IL28B rs8099917 TT genotype, HBV co-infection and blood donors (vs drug users) associated with increased spontaneous clearance of HCV infection. Although acute HCV infections are common in China, the incidence of chronic HCV may be reduced among the high prevalence of chronic HBV and IL28B genotypes associated with spontaneous clearance of HCV in Chinese populations.
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Affiliation(s)
- H Xiong
- Guangzhou Blood Center, Guangzhou, Guangdong, China
- The Key Medical Disciplines and Specialties Program of Guangzhou, Guangdong, China
| | - X Rong
- Guangzhou Blood Center, Guangzhou, Guangdong, China
- The Key Medical Disciplines and Specialties Program of Guangzhou, Guangdong, China
| | - M Wang
- Guangzhou Blood Center, Guangzhou, Guangdong, China
- The Key Medical Disciplines and Specialties Program of Guangzhou, Guangdong, China
| | - R Xu
- Guangzhou Blood Center, Guangzhou, Guangdong, China
- The Key Medical Disciplines and Specialties Program of Guangzhou, Guangdong, China
| | - K Huang
- Guangzhou Blood Center, Guangzhou, Guangdong, China
- The Key Medical Disciplines and Specialties Program of Guangzhou, Guangdong, China
| | - Q Liao
- Guangzhou Blood Center, Guangzhou, Guangdong, China
- The Key Medical Disciplines and Specialties Program of Guangzhou, Guangdong, China
| | - J Huang
- Guangzhou Blood Center, Guangzhou, Guangdong, China
- The Key Medical Disciplines and Specialties Program of Guangzhou, Guangdong, China
| | - J Chen
- Guangzhou Blood Center, Guangzhou, Guangdong, China
- The Key Medical Disciplines and Specialties Program of Guangzhou, Guangdong, China
| | - C Li
- Department of Transfusion Medicine, School of Biotechnology, Southern Medical University, Guangzhou, Guangdong, China
| | - X Tang
- Department of Transfusion Medicine, School of Biotechnology, Southern Medical University, Guangzhou, Guangdong, China
| | - Z Shan
- Guangzhou Blood Center, Guangzhou, Guangdong, China
- The Key Medical Disciplines and Specialties Program of Guangzhou, Guangdong, China
| | - M Zhang
- Faculty of Infectious Diseases, Department of Epidemiology and Biostatistics, University of Georgia, Athens, GA, USA
| | - K Nelson
- Department of Epidemiology, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD, USA
| | - Y Fu
- Guangzhou Blood Center, Guangzhou, Guangdong, China
- The Key Medical Disciplines and Specialties Program of Guangzhou, Guangdong, China
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30
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Affiliation(s)
- Xugang Dang
- The Key Laboratory of Leather Chemistry and Engineering (Sichuan University), Ministry of Education; Chengdu 610065 China
- National Engineering Laboratory for Clean Technology of Leather Manufacture; Sichuan University; Chengdu 610065 China
| | - Zhihua Shan
- The Key Laboratory of Leather Chemistry and Engineering (Sichuan University), Ministry of Education; Chengdu 610065 China
- National Engineering Laboratory for Clean Technology of Leather Manufacture; Sichuan University; Chengdu 610065 China
| | - Hui Chen
- The Key Laboratory of Leather Chemistry and Engineering (Sichuan University), Ministry of Education; Chengdu 610065 China
- National Engineering Laboratory for Clean Technology of Leather Manufacture; Sichuan University; Chengdu 610065 China
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31
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Jiang F, Liu A, Lai Y, Yu X, Li C, Han C, Zhang Y, Wang X, Wang Z, Bao S, Lv N, Jin M, Yang F, Fan Y, Jin T, Zhao W, Shan Z, Teng W. Change in serum TSH levels within the reference range was associated with variation of future blood pressure: a 5-year follow-up study. J Hum Hypertens 2016; 31:244-247. [PMID: 27557892 DOI: 10.1038/jhh.2016.59] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2015] [Revised: 07/12/2016] [Accepted: 07/15/2016] [Indexed: 11/09/2022]
Abstract
Controversy exists on the relationship between serum thyrotropin (TSH) and blood pressure, and only a few prospective studies are available up to now. The study aimed to investigate the association between serum TSH within the reference range and blood pressure through a 5-year follow-up study. A total of 623 subjects with normal TSH were followed up for 5 years, including the measurement of demographic data, blood pressure, height, weight and serum TSH. Finally, 531 subjects were included in this prospective study. Body mass index (BMI), prevalence of hypertension, and systolic and diastolic blood pressure were all higher at follow-up than at baseline. Adjusted for age, gender, smoking status, BMI and homoeostasis model assessment of insulin resistance (HOMA-IR) at baseline, multiple linear regression analyses found no relationship between serum TSH at baseline and levels of blood pressure at follow-up, but the changes in serum TSH levels during follow-up was positively associated with the changes in systolic blood pressure (B=2.134, P<0.05), which became more significant in women but not significant in men. The change of systolic blood pressure in group of TSH increase >0.5 mIU l-1 was significantly higher than in group of TSH decrease >0.5 mIU l-1 within reference, after adjusting for age, gender, smoking status, BMI and HOMA-IR at baseline. This result became more significant in women, but no statistical significance was observed in men. Co-variation with serum TSH levels and blood pressure was observed during 5-year follow-up among people with normal TSH.
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Affiliation(s)
- F Jiang
- Department of Endocrinology and Metabolism and the Institute of Endocrinology of the First Affiliated Hospital, China Medical University, Shenyang, PR China
| | - A Liu
- Department of Endocrinology and Metabolism and the Institute of Endocrinology of the First Affiliated Hospital, China Medical University, Shenyang, PR China
| | - Y Lai
- Department of Endocrinology and Metabolism and the Institute of Endocrinology of the First Affiliated Hospital, China Medical University, Shenyang, PR China
| | - X Yu
- Department of Endocrinology and Metabolism and the Institute of Endocrinology of the First Affiliated Hospital, China Medical University, Shenyang, PR China
| | - C Li
- Department of Endocrinology and Metabolism and the Institute of Endocrinology of the First Affiliated Hospital, China Medical University, Shenyang, PR China
| | - C Han
- Department of Endocrinology and Metabolism and the Institute of Endocrinology of the First Affiliated Hospital, China Medical University, Shenyang, PR China
| | - Y Zhang
- Department of Endocrinology and Metabolism and the Institute of Endocrinology of the First Affiliated Hospital, China Medical University, Shenyang, PR China
| | - X Wang
- Department of Endocrinology and Metabolism and the Institute of Endocrinology of the First Affiliated Hospital, China Medical University, Shenyang, PR China
| | - Z Wang
- Department of Endocrinology and Metabolism and the Institute of Endocrinology of the First Affiliated Hospital, China Medical University, Shenyang, PR China
| | - S Bao
- Department of Endocrinology and Metabolism and the Institute of Endocrinology of the First Affiliated Hospital, China Medical University, Shenyang, PR China
| | - N Lv
- Department of Endocrinology and Metabolism and the Institute of Endocrinology of the First Affiliated Hospital, China Medical University, Shenyang, PR China
| | - M Jin
- Department of Endocrinology and Metabolism and the Institute of Endocrinology of the First Affiliated Hospital, China Medical University, Shenyang, PR China
| | - F Yang
- Department of Endocrinology and Metabolism and the Institute of Endocrinology of the First Affiliated Hospital, China Medical University, Shenyang, PR China
| | - Y Fan
- Department of Endocrinology and Metabolism and the Institute of Endocrinology of the First Affiliated Hospital, China Medical University, Shenyang, PR China
| | - T Jin
- Department of Endocrinology and Metabolism and the Institute of Endocrinology of the First Affiliated Hospital, China Medical University, Shenyang, PR China
| | - W Zhao
- Department of Endocrinology and Metabolism and the Institute of Endocrinology of the First Affiliated Hospital, China Medical University, Shenyang, PR China
| | - Z Shan
- Department of Endocrinology and Metabolism and the Institute of Endocrinology of the First Affiliated Hospital, China Medical University, Shenyang, PR China
| | - W Teng
- Department of Endocrinology and Metabolism and the Institute of Endocrinology of the First Affiliated Hospital, China Medical University, Shenyang, PR China
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Dang X, Shan Z, Chen H. The Preparation and Applications of One Biodegradable Liquid Film Mulching by Oxidized Corn Starch-Gelatin Composite. Appl Biochem Biotechnol 2016; 180:917-929. [DOI: 10.1007/s12010-016-2142-4] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2016] [Accepted: 05/13/2016] [Indexed: 10/21/2022]
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Ji L, Su Q, Feng B, Shan Z, Hu R, Xing X, Xue Y. Glycemic control and self-monitoring of blood glucose in Chinese patients with type 2 diabetes on insulin: Baseline results from the COMPASS study. Diabetes Res Clin Pract 2016; 112:82-87. [PMID: 26775249 DOI: 10.1016/j.diabres.2015.08.005] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/22/2015] [Revised: 08/10/2015] [Accepted: 08/18/2015] [Indexed: 12/21/2022]
Abstract
AIMS Self monitoring of blood glucose (SMBG) is not widely utilized in insulin-treated patients with type 2 diabetes. In this analysis, we evaluated the current state of SMBG in Chinese adults with type 2 diabetes treated with insulin. METHODS The 2-phase COMPASS study involved 24 centers across 10 provinces and cities in China. In the first phase, a cross sectional survey was carried out in type 2 diabetes patients receiving insulin treatment. The inclusion criteria for the study subjects in the first phase were: type 2 diabetes, insulin treatment for ≥ 3 months, and age ≥ 18 years. Evaluation was made on the status of SMBG and insulin therapy in these patients by a questionnaire. RESULTS A total of 2819 patients (age 58.2 ± 10.8 years; 49.6% females; BMI 24.6 ± 3.4 kg/m(2)) with insulin-treated type 2 diabetes were recruited in phase I of this study. The majority of patients (80.4%) were receiving insulin treatment for at least 6 months. At baseline, the mean HbA1c was 8.5 ± 1.9% and 54.6% of patients had an HbA1c above 8%. 50.4% of the cohort had diabetes for at least 10 years, and fewer of these patients achieved HbA1c <7.0% (53 mmol/mol). At baseline, 65.8% of patients reported that daily SMBG frequency was performed on a random basis. 59.2% of patients reported that they occasionally, rarely or never follow their physician's instructions regarding SMBG. Hypoglycemia occurred in over 50% of patients, although in 71.8% of patients this was a rare occurrence. CONCLUSIONS There is low utilization of SMBG in Chinese adults with insulin-treated type 2 diabetes, with approximately two-thirds of patients reporting irregular use of SMBG. This is in line with an overall poor level of glycemic control.
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Affiliation(s)
- L Ji
- Peking University People's Hospital, Beijing, China.
| | - Q Su
- Xin Hua Hospital, Shanghai, China.
| | - B Feng
- Tongji University Oriental Hospital, Shanghai, China.
| | - Z Shan
- The First Hospital of China Medical University, Shenyang, Liaoning, China.
| | - R Hu
- Huashan Hospital, Shanghai, China.
| | - X Xing
- Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China.
| | - Y Xue
- Nan Fang Hospital, Guangzhou, Guangdong, China.
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Gao L, Ji L, Su Q, Feng B, Shan Z, Hu R, Xing X, Xue Y. Impact of structured self-monitoring of blood glucose on the quality of life of insulin-treated Chinese patients with type 2 diabetes mellitus: Results from the COMPASS study. Diabetes Res Clin Pract 2016; 112:88-93. [PMID: 26774907 DOI: 10.1016/j.diabres.2015.08.004] [Citation(s) in RCA: 8] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/27/2015] [Revised: 06/13/2015] [Accepted: 08/07/2015] [Indexed: 11/22/2022]
Abstract
AIMS To evaluate the effect of structured self-monitoring of blood glucose (SMBG) regimen on quality of life (QoL) in poorly controlled insulin-treated patients with type 2 diabetes. METHODS Phase II of the COMPASS trial was a 6-month, multicenter, prospective, single-arm, interventional study. This study recruited 820 outpatients from 19 clinical sites in China who met the following inclusion criteria: type 2 diabetes, insulin treatment for ≥ 3 months, and age 18-65 years, an HbA1c >8.0% (64 mmol/mol), and willingness to perform SMBG. Subjects were advised to follow a structured SMBG regimen specific to their insulin regimen, and were trained to respond to SMBG readings via lifestyle changes and insulin dose self-adjustment. QoL assessments (SF-36) were performed at baseline and 6 months. RESULTS Patients with a mean age of 55.13 ± 9.77 years had an average diabetes duration of 9.83 ± 7.05 years and had been receiving insulin therapy for a mean of 45.4 ± 46.79 months. All QoL parameters were significantly improved following structured SMBG after 6 months, most notably the physical role functioning (p<0.0001) and emotional role functioning (p<0.0001) component scores. Overall, 40.6% of patients rated their overall QoL as 'a bit' or a lot better' after structured SMBG compared with 16.5% prior to the intervention (p<0.0001). SMBG also improved overall feelings of wellbeing, with 39.13% of patients believing that their health was deteriorating prior to SMBG compared with only 14.4% of patients after the intervention (p<0.0001). CONCLUSIONS The structured SMBG program in insulin-treated Chinese outpatients with type 2 diabetes significantly improved QoL outcomes. Physical and emotional role functioning are the 2 QoL scales that demonstrate the largest improvement with SMBG.
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Affiliation(s)
- L Gao
- Peking University People's Hospital, Beijing, China
| | - L Ji
- Peking University People's Hospital, Beijing, China.
| | - Q Su
- Xin Hua Hospital, Shanghai, China
| | - B Feng
- Tongji University Oriental Hospital, Shanghai, China
| | - Z Shan
- The First Hospital of China Medical University, Liaoning, China
| | - R Hu
- Huashan Hospital, Shanghai, China
| | - X Xing
- Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Y Xue
- Nan Fang Hospital, Guangdong, China
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Xu W, Bi Y, Sun Z, Li J, Guo L, Yang T, Wu G, Shi L, Feng Z, Qiu L, Li Q, Guo X, Luo Z, Lu J, Shan Z, Yang W, Ji Q, Yan L, Li H, Yu X, Li S, Zhou Z, Lv X, Liang Z, Lin S, Zeng L, Yan J, Ji L, Weng J. Comparison of the effects on glycaemic control and β-cell function in newly diagnosed type 2 diabetes patients of treatment with exenatide, insulin or pioglitazone: a multicentre randomized parallel-group trial (the CONFIDENCE study). J Intern Med 2015; 277:137-50. [PMID: 25039675 DOI: 10.1111/joim.12293] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [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] [Indexed: 01/15/2023]
Abstract
OBJECTIVE Progressive β-cell dysfunction hinders the maintenance of glycaemic control in type 2 diabetes, but comparative data on β-cell-protective therapies are lacking in the early stage of type 2 diabetes. Here we evaluated the comparative glycaemic efficacy and impact on β-cell function of three antihyperglycaemic agents that have a β-cell-protective effect, exenatide, insulin and pioglitazone, in newly diagnosed patients with type 2 diabetes. DESIGN AND METHODS In this 48-week, multicentre, parallel-group study, 416 patients newly diagnosed with type 2 diabetes were randomly assigned 1 : 1 : 1 to receive exenatide, insulin or pioglitazone. The primary end-point was the change in glycosylated haemoglobin (HbA1c) from baseline. Secondary end-points included effects on weight, blood pressure, lipid profiles and β-cell function assessed by homeostasis model assessment, fasting proinsulin:insulin (PI/I), disposition index (DI) and acute insulin response (AIR). RESULTS At week 48, mean [95% confidence interval (CI)] HbA1c changes from baseline were -1.8% (-1.55% to -2.05%) with exenatide, -1.7% (-1.52% to -1.96%) with insulin and -1.5% (-1.23% to -1.71%) with pioglitazone. Treatment differences were -0.20% (95% CI -0.46% to 0.06%) for exenatide versus insulin (P = 0.185), and -0.37% (95% CI -0.63% to -0.12%) for exenatide versus pioglitazone (P = 0.002). Significant improvements from baseline in AIR, PI/I and DI were observed with all treatments, with the greatest improvements in DI, as well as weight, blood pressure and lipid profile, observed with exenatide. CONCLUSIONS All three agents showed efficacy regarding glycaemic control and metabolic benefits; however, exenatide showed the greatest efficacy. β-cell function improved in all treatment groups; hence, early initiation of β-cell-protective therapy may halt the decline in β-cell function in type 2 diabetes.
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Affiliation(s)
- W Xu
- Department of Endocrinology and Metabolism, Guangdong Provincial Key Laboratory of Diabetology, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
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Hou Q, Chen K, Shan Z. The construction of cDNA library and the screening of related antigen of ascitic tumor cells of ovarian cancer. EUR J GYNAECOL ONCOL 2015; 36:590-594. [PMID: 26513889] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
OBJECTIVE To construct the cDNA library of the ascites tumor cells of ovarian cancer, which can be used to screen the related antigen for the early diagnosis of ovarian cancer and therapeutic targets of immune treatment. MATERIALS AND METHODS Four cases of ovarian serous cystadenocarcinoma, two cases of ovarian mucinous cystadenocarcinoma, and two cases of ovarian endometrial carcinoma in patients with ascitic tumor cells which were used to construct the cDNA library. To screen the ovarian cancer antigen gene, evaluate the enzyme, and analyze nucleotide sequence, serological analysis of recombinant tumor cDNA expression libraries (SEREX) and suppression subtractive hybridization technique (SSH) techniques were utilized. The detection method of recombinant expression-based serological mini-arrays (SMARTA) was used to detect the ovarian cancer antigen and the positive reaction of 105 cases of ovarian cancer patients and 105 normal women's autoantibodies correspondingly in serum. RESULTS After two rounds of serologic screening and glycosides sequencing analysis, 59 candidates of ovarian cancer antigen gene fragments were finally identified, which corresponded to 50 genes. They were then divided into six categories: (1) the homologous genes which related to the known ovarian cancer genes, such as BARD 1 gene, etc; (2) the homologous genes which were associated with other tumors, such as TM4SFI gene, etc; (3) the genes which were expressed in a special organization, such as ILF3, FXR1 gene, etc; (4) the genes which were the same with some protein genes of special function, such as TIZ, ClD gene; (5) the homologous genes which possessed the same source with embryonic genes, such as PKHD1 gene, etc; (6) the remaining genes were the unknown genes without the homologous sequence in the gene pool, such as OV-189 genes. CONCLUSION SEREX technology combined with SSH method is an effective research strategy which can filter tumor antigen with high specific character; the corresponding autoantibodies of TM4SFl, ClD, TIZ, BARDI, FXRI, and OV-189 gene's recombinant antigen in serum can be regarded as the biomarkers which are used to diagnose ovarian cancer. The combination of multiple antigen detection can improve diagnostic efficiency.
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Zhan M, Cheng Z, Su G, Wang A, Chen H, Yang Z, Shan Z, Huang Q. Genetic relationships analysis of olive cultivars grown in China. Genet Mol Res 2015; 14:5958-69. [DOI: 10.4238/2015.june.1.13] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Zheng JJ, Zhang ZH, Shan Z, Wang WJ, Li XX, Wang SM, Li YX, Cheng GS. Catheter-directed thrombolysis in the treatment of acute deep venous thrombosis: a meta-analysis. Genet Mol Res 2014; 13:5241-9. [PMID: 25078578 DOI: 10.4238/2014.july.24.1] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
We performed a meta-analysis for systematic evaluation of the status quo of catheter thrombolysis for the treatment of acute lower limb deep vein thrombosis in China. We searched the China Biomedical bibliographic database (CBM), China National Knowledge Infrastructure (CNKI), Weipu full-text electronic journals, Wanfang full-text database, and Medline (1990 through June 2011) for clinical randomized controlled trials of catheter-directed thrombolysis and superficial venous thrombolysis to compare their efficacies for the treatment of acute deep vein thrombosis. The results were analyzed by using the Cochrane-recommended RevMan 4.2 software package, and the odds ratio (OR) was used as the combined measure of efficacy. The search retrieved 8 randomized controlled trials, and meta-analysis using the total rate of effective treatment as the clinical observation index found that the combined OR for the catheter thrombolysis group versus the superficial venous thrombolysis group was significant (P < 0.01; OR = 11.78; 95% confidence interval = 6.99-19.87). In conclusion, the meta-analysis indicated that catheter thrombolysis was more effective than superficial venous thrombolysis for the treatment of acute deep vein thrombosis in the lower limb in Chinese individuals. However, the included trials were only of medium quality, so more rational and scientific clinical trials are needed to validate this conclusion.
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Affiliation(s)
- J J Zheng
- Cardiac Surgery, The First Affiliated Hospital of Xi'an Jiaotong University School of Medicine, Xi'an, Shaan Xi, China
| | - Z H Zhang
- Department of Vascular Surgery, The First Affiliated Hospital of Zhongshan University, Guangzhou, Guangdong, China
| | - Z Shan
- Department of Vascular Surgery, The First Affiliated Hospital of Zhongshan University, Guangzhou, Guangdong, China
| | - W J Wang
- Department of Vascular Surgery, The First Affiliated Hospital of Zhongshan University, Guangzhou, Guangdong, China
| | - X X Li
- Department of Vascular Surgery, The First Affiliated Hospital of Zhongshan University, Guangzhou, Guangdong, China
| | - S M Wang
- Department of Vascular Surgery, The First Affiliated Hospital of Zhongshan University, Guangzhou, Guangdong, China
| | - Y-X Li
- Cardiac Surgery, The First Affiliated Hospital of Xi'an Jiaotong University School of Medicine, Xi'an, Shaan Xi, China
| | - G-S Cheng
- Second Department of Cardiology, The First Affiliated Hospital of Xi'an Jiaotong University School of Medicine, Xi'an, Shaan Xi, China
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Guo L, Gao R, Xu J, Jin L, Cotrim AP, Yan X, Zheng C, Goldsmith CM, Shan Z, Hai B, Zhou J, Zhang C, Baum BJ, Wang S. AdLTR2EF1α-FGF2-mediated prevention of fractionated irradiation-induced salivary hypofunction in swine. Gene Ther 2014; 21:866-73. [PMID: 25030610 DOI: 10.1038/gt.2014.63] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2013] [Revised: 04/26/2014] [Accepted: 06/06/2014] [Indexed: 12/16/2022]
Abstract
Patients frequently experience a loss of salivary function following irradiation (IR) for the treatment of an oral cavity and oropharyngeal cancer. Herein, we tested if transfer of fibroblast growth factor-2 (FGF2) cDNA could limit salivary dysfunction after fractionated IR (7.5 or 9 Gy for 5 consecutive days to one parotid gland) in the miniature pig (minipig). Parotid salivary flow rates steadily decreased by 16 weeks post-IR, whereas blood flow in the targeted parotid gland began to decrease ~3 days after beginning IR. By 2 weeks, post-IR salivary blood flow was reduced by 50%, at which point it remained stable for the remainder of the study. The single preadministration of a hybrid serotype 5 adenoviral vector encoding FGF2 (AdLTR2EF1a-FGF2) resulted in the protection of parotid microvascular endothelial cells from IR damage and significantly limited the decline of parotid salivary flow. Our results suggest that a local treatment directed at protecting salivary gland endothelial cells may be beneficial for patients undergoing IR for oral cavity and oropharyngeal cancer.
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Affiliation(s)
- L Guo
- Salivary Gland Disease Center and Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Capital Medical University School of Stomatology, Beijing, People's Republic of China
| | - R Gao
- Salivary Gland Disease Center and Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Capital Medical University School of Stomatology, Beijing, People's Republic of China
| | - J Xu
- Salivary Gland Disease Center and Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Capital Medical University School of Stomatology, Beijing, People's Republic of China
| | - L Jin
- Salivary Gland Disease Center and Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Capital Medical University School of Stomatology, Beijing, People's Republic of China
| | - A P Cotrim
- Molecular Physiology and Therapeutics Branch, National Institute of Dental and Craniofacial Research, NIH, DHHS, Bethesda, MD, USA
| | - X Yan
- Salivary Gland Disease Center and Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Capital Medical University School of Stomatology, Beijing, People's Republic of China
| | - C Zheng
- Molecular Physiology and Therapeutics Branch, National Institute of Dental and Craniofacial Research, NIH, DHHS, Bethesda, MD, USA
| | - C M Goldsmith
- Molecular Physiology and Therapeutics Branch, National Institute of Dental and Craniofacial Research, NIH, DHHS, Bethesda, MD, USA
| | - Z Shan
- Salivary Gland Disease Center and Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Capital Medical University School of Stomatology, Beijing, People's Republic of China
| | - B Hai
- Salivary Gland Disease Center and Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Capital Medical University School of Stomatology, Beijing, People's Republic of China
| | - J Zhou
- Salivary Gland Disease Center and Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Capital Medical University School of Stomatology, Beijing, People's Republic of China
| | - C Zhang
- Salivary Gland Disease Center and Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Capital Medical University School of Stomatology, Beijing, People's Republic of China
| | - B J Baum
- Molecular Physiology and Therapeutics Branch, National Institute of Dental and Craniofacial Research, NIH, DHHS, Bethesda, MD, USA
| | - S Wang
- 1] Salivary Gland Disease Center and Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Capital Medical University School of Stomatology, Beijing, People's Republic of China [2] Department of Biochemistry and Molecular Biology, School of Stomatology, Capital Medical University School of Basic Medical Sciences, Beijing, People's Republic of China
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Shi L, Bi M, Yang R, Zhou J, Zhao S, Fan C, Shan Z, Li Y, Teng W. Defective expression of regulatory B cells in iodine-induced autoimmune thyroiditis in non-obese diabetic H-2(h4) mice. J Endocrinol Invest 2014; 37:43-50. [PMID: 24464449 DOI: 10.1007/s40618-013-0013-1] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/06/2013] [Accepted: 11/18/2013] [Indexed: 11/29/2022]
Abstract
INTRODUCTION The ability of B cells to negatively regulate cellular immune responses and inflammation has been described. The regulatory B (Breg) cells with the unique CD1d(hi)CD5(+)CD19(+) phenotype and the capacity to produce IL-10 are potent negative regulators of inflammation and autoimmunity in several in vivo mouse models of autoimmune disease. AIM To investigate whether Breg cell deficiency participates in autoimmune thyroiditis (AIT) in an animal model. MATERIALS AND METHODS Non-obese diabetic (NOD).H-2(h4) mice at 4 weeks of age were randomly divided into control and iodine-treated groups; the iodine-treated group received sterile water containing 0.005 % NaI for 10 or 20 weeks. The percentage of CD1d(hi)CD5(+)CD19(+) Bregs, CD4(+)CD25(+)FoxP3(+) regulatory T cells (Treg) and CD4(+)IL17(+) T helper 17 cells (Th17) in splenic mononuclear cells was detected by multicolor flow cytometry. The expression of IL-10 mRNA and TGF-β mRNA in splenocytes was measured by real-time RT-PCR. RESULTS NOD.H-2(h4) mice spontaneously develop anti-thyroglobulin autoantibodies and intrathyroidal lymphocyte infiltration when supplied with iodine in drinking water. Mice with AIT had a decreased CD1d(hi)CD5(+)CD19(+) Breg subset and reduced IL-10 mRNA expression in splenocytes compared with controls (p < 0.05) and maintained relatively low levels during the development of thyroiditis. The proportion of Breg cells was negatively correlated with the proportion of Th17 cells, but positively correlated with CD4(+)CD25(+)FoxP3(+) Treg cells in splenocytes (All p < 0.05). CONCLUSIONS The defective expression of Breg cells combined with impaired Treg cells and enhanced Th17 cells might play an important role in the development of iodine-induced AIT in NOD.H-2(h4) mice.
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Affiliation(s)
- L Shi
- Department of Otolaryngology, The First Affiliated Hospital of China Medical University, Shenyang, 110001, People's Republic of China
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Abstract
In this study, we investigated the possibility of using local administration of allogeneic bone marrow mesenchymal stem cells (BMMSCs) to induce tissue regeneration in periodontal defects in a rat model of periodontitis. BMMSCs isolated from rats were mixed with 0.9% NaCl solution and injected into periodontal defects. Control groups were 0.9% NaCl solution or left untreated. The clinical assessments, x-rays, and histological examinations were used to evaluate the effect. At 12 wks post-transplantation, quantitative analysis revealed average probing bone loss values of 1.2 ± 0.19, 1.6 ± 0.2, and 1.7 ± 0.14; the bone regeneration rate was 53%, 45%, and 44% in the BMMSC+NaCl group, NaCl group, and untreated group, respectively. The clinical assessments, x-rays, and histological examinations revealed significant periodontal tissue regeneration in the BMMSC injection group, compared with the control groups. The ELISA results showed that TNFα, IFNγ, and IL1β were 2,674.88 ± 102.77 pg/mL vs. 3,422.1 ± 51.98 pg/mL, 609.85 ± 25.5 pg/mL vs. 803.79 ± 33.85 pg/mL, and 1,038.46 ± 76.29 pg/mL vs. 1,175.26 ± 105.55 pg/mL in the BMMSC+NaCl group and NaCl group, respectively, indicating that BMMSC injection inhibited the inflammatory factors TNFα, IFNγ, and IL1β. Our results indicate that local administration of BMMSCs can repair defects due to periodontitis, exerting anti-inflammatory and immunomodulatory functions.
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Affiliation(s)
- J Du
- Laboratory of Molecular Signaling and Stem Cells Therapy, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Capital Medical University School of Stomatology, Beijing 100050, China
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Xiao J, Weng J, Ji L, Jia W, Lu J, Shan Z, Liu J, Tian H, Ji Q, Yang Z, Yang W. Worse Pancreatic -cell Function and Better Insulin Sensitivity in Older Chinese Without Diabetes. J Gerontol A Biol Sci Med Sci 2013; 69:463-70. [DOI: 10.1093/gerona/glt104] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Yang Z, Xing X, Xiao J, Lu J, Weng J, Jia W, Ji L, Shan Z, Liu J, Tian H, Ji Q, Zhu D, Ge J, Lin L, Chen L, Guo X, Zhao Z, Li Q, Zhou Z, Shan G, Yang W. Prevalence of cardiovascular disease and risk factors in the Chinese population with impaired glucose regulation: the 2007-2008 China national diabetes and metabolic disorders study. Exp Clin Endocrinol Diabetes 2013; 121:372-4. [PMID: 23616189 DOI: 10.1055/s-0033-1341520] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Cardiovascular disease (CVD) is one of the most common chronic diseases in China. This aim of this study is to determine the prevalence of CVDs and risk factors in Chinese impaired glucose regulation subjects.We used a multistage, stratified sampling method to select subjects from the general Chinese population aged 20 years and older. Subjects underwent an oral glucose tolerance test to identify normal glucose tolerance (NGT) and impaired glucose regulation including isolated impaired fasting glucose (i-IFG), impaired glucose tolerance (i-IGT), and combined IFG/IGT and diabetic mellitus (DM). A logistic regression analysis was performed to examine the association between glucose abnormalities and CVD events.We identified that 34 293 subjects had NGT, 1 469 i-IFG, 4 571 i-IGT, 957 IFG/IGT and 4 949 DM. The age-sex standardized prevalence rate of cardiovascular disease was 1.06% (95% CI 0.87-1.28), 1.79% (95% CI 1.37-2.33) and 3.83% (95% CI 2.79-5.24) in NGT, impaired glucose regulation and DM, respectively. Among impaired glucose subjects, prevalence of defined CVD risk factors (smoking, overweight, obesity, hypertension and dyslipidemia) was 29.52% (95% CI: 27.8-31.21), 36.25% (95% CI: 34.29-38.26), 10.05% (95% CI: 8.86-11.37), 36.43% (95% CI: 34.53-38.36) and 69.96% (95% CI: 67.87-71.98), respectively. Compared to 1 risk factor, the odds ratios (ORs) of CVDs with 2, 3 or 4 risk factors were 1.94 (95% CI: 0.74-5.09), 2.76 (95% CI: 1.06-7.21) and 5.84 (95% CI: 1.68-20.26), respectively. Additionally, compared to i-IFGs, ORs of CVDs with i-IGT and IFG/IGT were 2.88 (95%CI 1.36-6.01) and 2.12 (95% CI 0.83-5.44), respectively.The prevalence of cardiovascular risk factors was high in the Chinese impaired glucose regulation population. The postprandial hyperglycemia is more associated with CVD than isolated fasting hyperglycemia.
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Affiliation(s)
- Z Yang
- China-Japan Friendship Hospital, Beijing
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Shan Z, Li S, Liu Y, Yang Z, Yang C, Sha A, Chen H, Chen S, Zhou XA. First Report of Phomopsis Seed Decay of Soybean Caused by Phomopsis longicolla in South China. Plant Dis 2012; 96:1693. [PMID: 30727483 DOI: 10.1094/pdis-04-12-0401-pdn] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Phomopsis seed decay of soybean (Glycine max (L.) Merr.) causes poor seed quality and suppresses yield in most soybean-growing areas in the world. The disease is caused primarily by Phomopsis longicolla Hobbs. During the spring of 2010, soybean seeds without symptoms were planted in the fields but emergence was poor and the emergence rates ranged from 30 to 70% in south China. Approximately 3,000 symptomless seeds were randomly collected from seven fields at three locations in Guangzhou, Nanchang, and Wuhan. Seeds were surface disinfected with 1% sodium hypochlorite for 12 min, rinsed in sterile distilled water three to four times, and placed on 2% agar. Plates were then incubated at 26°C under 16/8-h photoperiod for 3 to 4 days. About 10 to 20% of the seeds produced white hyphae that spread rapidly and covered the whole seed. The hyphae from fungal isolates were transferred to potato dextrose agar (PDA) and incubated at 26°C in the dark. After 3 to 4 weeks, conidia were elliptical with two oil drops at both ends and hyaline (6.2 to 7.2 × 2.6 to 3.2 μm). The cultural and morphological characteristics of the isolates corresponded with the description of P. longicolla (2). Colonies on PDA were floccose, dense, and white. Stromata were large, black, and spreading. To confirm the morphological identification, the ribosomal internal transcribed spacers (ITS1-5.8S-ITS2) from three isolates were sequenced (GenBank Accession Nos. JQ899030, JQ899031, and JQ899032). BLAST analysis indicated that the isolates had 99% nucleotide sequence identity with P. longicolla (GenBank Accession Nos. AY857868.1, EF026104, and HQ130441.1). Pathogenicity tests were conducted on 2-week-old soybean seedlings (3). A mycelial plug (3 mm in diameter) from the margin of 1-week-old PDA culture of the Wuhan isolate was individually placed mycelial side down directly on the top of cut stem 1 to 2 cm above cotyledon node of the soybean seedling. PDA plugs without the fungus was used as the negative control. All seedlings were kept in a growth chamber at 26°C with 92 to 94% relative humidity. After 2 weeks, all inoculated seedlings showed browning, stem wilt, and the lesions were 0.3 to 2.0 cm long. No symptoms were observed in the control plants. P. longicolla was reisolated from the infected seedlings. The pathogenicity test was repeated three times. Soybean stem blight caused by P. longicolla has been reported in northeast China (1). To our knowledge, this is the first report of P. longicolla causing Phomopsis seed decay of soybean in south China. This report will establish a foundation for developing a program for screening germplasm for resistance to this disease in south China. References: (1) Y. L. Cui et al. Plant Pathol. 58:799, 2009. (2) T. W. Hobbs et al. Mycologia 77:535,1985. (3) S. Li et al. Plant Dis. 85:1031, 2001.
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Affiliation(s)
- Z Shan
- Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences and Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture, Wuhan, 430062, China
| | - S Li
- Department of Agriculture-Agricultural Research Service, Crop Genetics Research Unit, Stoneville, MS 38776
| | - Y Liu
- Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences and Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture
| | - Z Yang
- Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences and Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture
| | - C Yang
- South China Agriculture University, Guangzhou, 510642, China
| | - A Sha
- Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences and Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture, Wuhan, 430062, China
| | - H Chen
- Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences and Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture, Wuhan, 430062, China
| | - S Chen
- Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences and Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture, Wuhan, 430062, China
| | - X-A Zhou
- Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences and Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture, Wuhan, 430062, China
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Agassandian K, Shan Z, Raizada M, Sved AF, Card JP. C1 catecholamine neurons form local circuit synaptic connections within the rostroventrolateral medulla of rat. Neuroscience 2012; 227:247-59. [PMID: 23041757 DOI: 10.1016/j.neuroscience.2012.09.049] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2012] [Revised: 09/20/2012] [Accepted: 09/20/2012] [Indexed: 02/07/2023]
Abstract
C1 catecholamine neurons reside within the rostroventrolateral medulla (RVLM), an area that plays an integral role in blood pressure regulation through reticulospinal projections to sympathetic preganglionic neurons in the thoracic spinal cord. In a previous investigation we mapped the efferent projections of C1 neurons, documenting supraspinal projections to cell groups in the preautonomic network that contribute to the control of cardiovascular function. Light microscopic study also revealed putative local circuit connections within RVLM. In this investigation we tested the hypothesis that RVLM C1 neurons elaborate a local circuit synaptic network that permits communication between C1 neurons giving rise to supraspinal and reticulospinal projections. A replication defective lentivirus vector that expresses enhanced green fluorescent protein (EGFP) under the control of a synthetic dopamine beta hydroxylase (DβH) promoter was used to label C1 neurons and their processes. Confocal fluorescence microscopy demonstrated thin varicose axons immunopositive for EGFP and tyrosine hydroxylase that formed close appositions to C1 somata and dendrites throughout the rostrocaudal extent of the C1 area. Dual-labeled electron microscopic analysis revealed axosomatic, axodendritic and axospinous synaptic contacts with C1 and non-C1 neurons with a distribution recapitulating that observed in the light microscopic analysis. Labeled boutons were large, contained light axoplasm, lucent spherical vesicles, and formed asymmetric synaptic contacts. Collectively these data demonstrate that C1 neurons form a synaptic network within the C1 area that may function to coordinate activity among projection-specific subpopulations of neurons. The data also suggest that the boundaries of RVLM should be defined on the basis of function criteria rather than the C1 phenotype of neurons.
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Affiliation(s)
- K Agassandian
- Department of Neuroscience, University of Pittsburgh, Pittsburgh, PA 15260, United States
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Lu L, Yu X, Teng W, Shan Z. Treatment with levothyroxine in pregnant rats with subclinical hypothyroidism improves cell migration in the developing brain of the progeny. J Endocrinol Invest 2012; 35:490-6. [PMID: 22024639 DOI: 10.3275/7967] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [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: 11/17/2022]
Abstract
AIM This study aims to investigate whether maternal subclinical hypothyroidism (SCH) influences the developing brain, and the effect of treatment with levothyroxine (L-T4) in early maternal SCH on the progeny's developing brain. MATERIALS AND METHODS Seventy-five thyroidectomized female Wistar rats were divided randomly into groups of hypothyroidism (CH), SCH, SCH treated with L-T4 from embryonic day (E) 10, E13, and E17 till post-natal day 21. There were 15 sham operated controls. RESULTS Pups from SCH or CH group had significantly lower body weight than euthyroid group. Pups from E10, E13 or E17 groups had normal body weight compared to control pups at P3 and P7. The levels of TSH and total T4 (TT4) of all pups were normal. The mean latencies were longer in pups from CH, SCH, and E17 group than controls. The latencies from E10 and E13 pups were comparable to those from control pups. There were changes in the cytoarchitecture of the barrel cortex and of the hippocampus in CH, SCH, and E17 pups. The barrel cortex of E10 or E13 pups was similar to that of control pups. The distribution of bromodeoxyuridinelabeled cells was more widespread in CH, SCH, and E17 pups than in control, E10, and E13 progeny. CONCLUSIONS Maternal SCH disturbs learning and memory performances in pups, and affects cytoarchitecture and cell migration in the developing brain of the progeny. Treatment with L-T4 in early maternal SCH before E13 improves cell migration in the developing brain, as well as learning and memory function of the progeny.
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Affiliation(s)
- L Lu
- Department of Endocrinology and Metabolism, the First Hospital of China Medical University, No. 155 Nanjing Bei Street, Heping District, Shenyang, 110001 China
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Abstract
Maternal hypothyroidism has adverse effects on neural development in the offspring. The present study aimed to investigate whether maternal subclinical hypothyroidism impairs spatial learning in the offspring, as well as the efficacy and optimal time of levothyroxine (L-T(4)) treatment in pregnancy. Female adult Wistar rats were randomly divided into six groups (n = 10 per group): control, hypothyroid (H), subclinical hypothyroid (SCH) and SCH treated with L-T(4), starting from the tenth, thirteenth and seventeenth gestational day (GD10, GD13 and GD17), respectively, to restore normal thyroid hormone levels. Spatial learning was assessed on progenies by a water maze test, a field excitatory postsynaptic potential (fEPSP) recording, and an long-term potentiation induction assay. Protein levels of early growth response protein 1 (Egr1), activity-regulated cytoskeleton-associated protein (Arc), Ras-proximate-1 (Rap1), p-extracellular signal-regulated kinase (p-ERK) and brain-derived neurotrophic factor (BDNF) were determined by western blotting. Progenies from the SCH and H groups demonstrated significantly longer mean latency in the water maze test and a lower amplification percentage of the amplitude and slope of the fEPSPs compared to offspring of the control group. L-T(4) treatment for the GD10 and GD13 groups significantly shortened mean latency and increased the amplification percentage of the amplitude and slope of the fEPSPs of the progeny of rats with subclinical hypothyroidism. However, L-T(4) treatment for the GD17 group showed only minimal effects on spatial learning in the offspring. Progenies of SCH and H groups had lower levels of Egr1, Arc, p-ERK and BDNF but higher levels of Rap1 compared to those of the controls. L-T(4) treatment ameliorated these protein expression changes in the progeny of rats with subclinical hypothyroidism. Maternal subclinical hypothyroidism impaired spatial learning in the offspring; L-T(4) treatment in early pregnancy recovered this adverse effect, and the optimal time of treatment should start from early pregnancy (GD10 and GD13).
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Affiliation(s)
- S Wang
- Department of Endocrinology and Metabolism, The First Hospital of China Medical University, Shenyang, China
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Jing L, Shan Z, Yongchu H, Xixue C, Xuejun Z. Successful treatment of a paraneoplastic pemphigus in a teenager using plasmapheresis, corticosteroids and tumour resection. Clin Exp Dermatol 2011; 36:752-4. [PMID: 21933232 DOI: 10.1111/j.1365-2230.2011.04081.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Paraneoplastic pemphigus (PNP) is a severe autoimmune blistering disease. Bronchiolitis obliterans (BO) is a common complication of PNP, is the major cause of death. PNP is rarely seen before the age of 18 years, and the prognosis is poor because of BO. We report a 16-year-old girl with the typical findings of PNP associated with Castleman's tumour. She was treated with tumour resection in combination with plasmapheresis and corticosteroids. Fifteen months after the operation, the patient had recovered without the development of BO.
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Affiliation(s)
- L Jing
- Department of Dermatology, Peking University First Hospital, Beijing, China
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Zhao Y, Shan Z, Li Q, Zhou Y, Zeng X, Fan Q, Liao C, Zhu Y, Zhao Y, Lu X, Liu J. Effect of CD4+ Memory T Cells on Rejection Response of Ectopic Heart Transplantation in Mice. Transplant Proc 2011; 43:1989-93. [DOI: 10.1016/j.transproceed.2010.12.054] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2010] [Revised: 11/05/2010] [Accepted: 12/13/2010] [Indexed: 11/29/2022]
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Guan Y, Ren K, Zhang D, Shan Z, Wang Y, Li Y, Guo H, Zhang Y. e0007 The effect of omeprazole on the oxidative stress and acute atrial electrical remodelling in rabbits. Heart 2010. [DOI: 10.1136/hrt.2010.208967.7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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