1.The expression and significance of unfolded protein response-related gene in synovial fluid macrophages in patients with spondyloarthritis and other arthritis
Ling LI ; Jian ZHU ; Feng HUANG
Chinese Journal of Internal Medicine 2013;(7):574-577
Objective To investigate whether unfolded protein response (UPR) plays a role in the pathogenesis of spondyloarthritis (SpA),and to assess UPR-related gene expression in SpA and other arthritis patients.Methods Eighteen patients with SpA,12 with rheumatoid arthritis (RA) and 6 with osteoarthritis (OA) were recruited.Macrophages were isolated from synovial fluid samples by immunomagnetic separation.The expression of UPR-regulated genes,including binding immunoglobulin protein (BiP),glucose-regulated protein 94 (GRP94),C/EBP homologous protein (CHOP),growth arrested and DNA damage-inducible 34 (GADD34),X-box binding protein 1 (XBP-1) and endoplasmic reticulum DnaJ homolog 4 (ERdj4),was tested by real time polymerase chain reaction (PCR).Results Compared with macrophages in OA patients,the expression of BiP and GRP94 mRNA [(6.06 ± 2.08) × 10-2 vs (1.11 ±0.72) × 10-2 for BiP mRNA,11.80(7.30-38.40) × 10-3 vs 1.27(1.02-4.18) × 10-3 for GRP94 mRNA,both P values <0.01] was significantly increased in macrophages in SpA patients.XBP1 mRNA was up-regulated [(12.70 ± 5.20) × 10-3 vs (4.14 ± 2.56) × 10-3,p < 0.01] in SpA group as well.UPR-regulated gene expression in SpA patients with HLA-B27 positive or HLA-B27 negative was similar.However,none of UPR-regulated genes showed different expression between the SpA group and RA group except for GADD34 mRNA [7.30 (5.56-15.40) × 10-3 vs 21.30 (12.20-27.60) × 10-3,P =0.009].Conclusions Our data suggest that UPR possibly participates in the pathogenesis of SpA,although the relationship between HLA-B27 and UPR still needs further investigation.
2.The Impact of Hospital Distance on the Chinese Inpatient Service Demand in Rural Areas:The Application of Discrete ;Choice Model
Ling LI ; Jian WANG ; Jia YUAN
Chinese Health Economics 2014;(1):11-13
It is always an important academic and policy issue to understand the impact of hospital distance on Chinese inpatient service demand in rural areas. It employs household survey data collected from 97 villages in Shandong in 2006 and 2008, and investigates the influences of hospital distance on the demand of famars in rural areas. The discrete choice model is constructed to estimate the inpatient service demand function for patients in rural areas. The empirical analysis finds that the hospital distance is significantly affecting Chinese inpatient service demand in the rural areas. The longer the distance increases, the lower the visiting rate drops. In addition, the impact changes with the changes of hospital level; the lower the primary hospital is, the higher the impact would be. It paper provides new evidence for the understanding of the geographical characteristics of medical health care.
3.Application of an improved skin prick test in chronic urticaria
Liming WU ; Li ZHU ; Ming SU ; Jian CHEN ; Ling LI
Chinese Journal of Dermatology 2011;44(12):887-888
Objective To evaluate the performance of an improved skin prick test in the screening for allergens.Methods A total of 475 patients with chronic urticaria who aged from 3 to 81 years were enrolled in this study,and classified into the control group (n =235) and research group (n =240).Traditional and improved skin prick test were conducted in the control and research group respectively.The allergen detection rate was compared between the two test methods.Results The allergen detection rate was 65.4% and 67.2% respectively for the improved and traditional skin prick test,respectively (P > 0.05).House dust mites were the most common sensitizing agent.Conclusion The improved skin prick test can offer reliable evidence for chnical diagnosis with a relatively convenient and safe procedure.
4.Spatio-temporal clustering analysis of mumps in Wenzhou City from 2010 to 2023
LI Ling ; WEI Jingjiao ; PAN Qiongjiao ; LI Wancang ; WANG Jian
Journal of Preventive Medicine 2025;37(3):284-287
Objective:
To identify the spatio-temporal clustering analysis of mumps in Wenzhou City, Zhejiang Province from 2010 to 2023, so as to provide the basis for improving mumps prevention and control strategies.
Methods:
Data of mumps cases in Wenzhou City from 2010 to 2023 were collected from the Monitoring and Reporting Management System of Chinese Disease Prevention and Control Information System. The spatio-temporal clustering characteristics of mumps incidence were identified using spatial autocorrelation analysis and spatio-temporal scan analysis.
Results:
A total of 20 455 mumps cases were reported in Wenzhou City from 2010 to 2023, with an average annual incidence of 17.54/105. There were 12 919 male and 7 536 female cases, with a male-to-female ratio of 1.71∶1. The children aged 5-<10 years had the highest incidence of mumps at 135.29/105. The incidence of mumps showed a downward trend from 46.82/105 in 2010 to 3.59/105 in 2023 (P<0.05). The incidence of mumps peaked from May to July and from November to January during 2010 and 2012, the winter peak became less evident after 2013, and no seasonal trends were observed after 2020. Spatial autocorrelation analysis showed there was a positive spatial correlation of mumps of other years, with the exception of 2018 (all Moran's I >0, all P<0.05). Lucheng District, Longwan District, Ouhai District, Cangnan County and Rui'an City were high-high clustering sites. Spatio-temporal scan analysis showed that the primary clustering area was centered in Nanbaixiang Street, Ouhai District, covering 50 towns (streets), with the clustering time from April 2010 to August 2013; the secondary clustering area was centered in Zaoxi Town, Cangnan County, covering 24 towns (streets), with the clustering time from January 2010 to June 2013.
Conclusions
The incidence of mumps in Wenzhou City from 2010 to 2023 showed a downward trend. The urban areas, Cangnan County and Rui'an City were the clustering areas.
5.Results of electronic bronchoscopy for cooks with lung cancer.
Feng-Ling LI ; Jian-Zhang HU ; Guo-Qing ZHANG
Chinese Journal of Industrial Hygiene and Occupational Diseases 2007;25(1):44-45
Adenocarcinoma
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diagnosis
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pathology
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Adult
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Aged
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Bronchoscopy
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methods
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Cooking
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Humans
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Lung Neoplasms
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diagnosis
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pathology
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Male
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Middle Aged
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Occupational Exposure
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Retrospective Studies
6.L-carnitine and cardiac metabolism and remodeling indices in alcoholic cardiomyopathy
Ling JING ; Weimin LI ; Lijun ZHOU ; Jian SONG
Chinese Journal of Internal Medicine 2008;47(11):934-937
Objective To observe the preventive and therapeutic effects of L-carnitine on the metabolic disorder and cardiac remodeling in alcoholic cardiomyopathy. Methods Experimental animals were divided into three groups: alcohol-fed group(A), an alcohol/L-carnitine fed group(B) and a control group(C). Free fatty acid(FFA) and earnitine were detected in the blood serum at different time. mRNA and protein expressions of peroxisome proliferator-activated receptors (PPARα and PPARγ), retinoic acid receptor retinoid X receptor alpha (RXRα), earnitine palmitoyl transferase isoform and medium-chain acyl-CoA dehydrogenase (MCAD) were observed with RT-PCR and Western blotting methods. Results (1) When group A and B were compared with group C, FFA was increased and carnitine was decreased;mRNA and protein expressions of PPARα, RXRα, CPT-Ⅰ and MCAD were decreased with the development of alcoholic cardiomyopathy (ACM), being more significantly in group A than group B (P < 0.05). (2) mRNA and protein expressions of PPARγ had no statistical significance between these three groups at the end of 2 and 4 months(P>0.05), but after 6 months, they were increased in group B and decreased in group A (A vs. C,P<0.01;B vs. C,P<0.05). Conclusion Metabolic disorder and cardiac remodeling occur in the development process of ACM; they are partly prevented by L-carnitine through downregulating mRNA and protein expressions of PPARct, RXRα, CPT-Ⅰ, MCAD and PPARγ.
7.Effects of lactobacillus complex capsules in patients with acute exacerbation of chronic obstructive pulmonary disease
Jian LI ; Jinping CHEN ; Ling PENG ; Daying LIU
The Journal of Practical Medicine 2015;(17):2886-2889
Objective To observe the effects of lactobacillus complex capsules in patients with acute exacerbation of chronic obstructive pulmonary disease (AECOPD). Methods A hundred AECOPD patients were divided into 2 groups: the therapy group(n = 50) with conventional and lactobacillus complex capsules therapy, and the control group with conventional therapy only. Parameters before and after therapy were compared, which included length of hospital stay, arterial blood gases, dyspnea grade, respiratory function test, markers of inflammation, anorexia score, diarrhea, fungi infection, breathing rate, death rate and side-effects of lactobacillus complex capsules. Results After 7 days of treatment, the blood leukocyte count and neutrophil ratio in the therapy group were lower than that of the control group (P < 0.05). The rate of anorexia score ≤ 2 in the therapy group was higher than that of the control group (P < 0.05). There were no differences in the rest parameters among the two groups(P > 0.05). There were no side-effects, such as skin rash and diarrhea, to be observed in the therapy group. Conclusion Oral lactobacillus complex capsule can be safe, anti-infective and improve appetite in patients with AECOPD.
8.Effect of TPh on cell HepG-2 cell cycle, apoptosis and related gene expression of hepatocellular carcinoma
Ruonan JIAN ; Lei FAN ; Lijuan LIU ; Chen MA ; Ling LI
Chinese Journal of Biochemical Pharmaceutics 2017;37(2):15-19
Objective To investigate the effect of different concentrations of TPh on hepatoma cells , cell viability and and its possible mechanisms of anti-tumor.Methods The inhibitory rate of hepatoma cells and cell viability on different concentrations of TPh and time were measured by MTT assay;The morphological changes of apoptosis were observed by Hoechst 33258 straining; Cell cycle distribution was evaluated by flow cytometry (FCM).The protein expression of Bcl-2 and Bax were detected by Western blot analysis.Results MTT assay showed that TPh inhibited the proliferation of HepG-2 cells in a dose-dependent manner, and the inhibitory rate increased with the increase of concentration.The inhibitory rate was 50.9% (P<0.01).The results of Hoechst 33258 staining showed that the fluorescence intensity of hepatocellular carcinoma cells was light blue in fluorescence microscopy and bright blue fluorescence in apoptotic hepatocarcinoma cells, and the apoptosis of hepatocarcinoma cells increased with the increase of drug concentration.The percentage of cells in G0/G1 phase increased with the increase of cell cycle, and the ratio of cells in S phase was decreased in G2/M phase compared with blank control group (P<0.05);Western blot results showed that compared with the blank control group, TPh inhibited the proliferation of Bcl-2 cells in a concentration-dependent manner ( P <0.05 ) , and the number of apoptotic cells increased with the increase of drug concentration (P<0.05), and the ratio of Bcl-2/Bax in the TPh group decreased significantly (P<0.05), and the expression of Bax gene increased. Conclusion TPh inhibits cell proliferation, promotes apoptosis and induces HepG-2 to block G0/G1 phase.Its mechanism may increase the expression of Bax and decrease Bcl-2 protein expression.
9.Effects of lactobacillus complex capsules in patients with acute exacerbation of chronic obstructive pulmonary disease and different degrees anorexia
Jian LI ; Jinping CHEN ; Ling PENG ; Daying LIU
The Journal of Practical Medicine 2016;32(3):392-395
Objective To observe the effects of lactobacillus complex capsules in patients with acute exacerbation of chronic obstructive pulmonary disease (AECOPD) and different degrees anorexia. Methods 100 anorexia score 1 and 100 anorexia score 2-5 AECOPD patients were divided into 4 groups: the therapy group 1 (anorexia score 1,n = 50) and the therapy group 2 (anorexia score 2-5,n = 50) with conventional and lactobacillus complex capsules therapy, the control group 1 (anorexia score 1, n = 50) and the control group 2 (anorexia score 2-5,n = 50) with conventional therapy. Parameters were recorded, which include length of hospital stay , markers of inflammation , arterial blood gases , lung function , clinical symptoms , death rate and side-effects of lactobacillus complex capsules. Results After treatment, WBC, trophil ratio, length of hospital stay in the therapy group 2 were lower than the control group 2(P < 0.05). The PCO2 in the therapy group 1 was lower than the control group 1 (P < 0.05). There were no differences in the rest parameters between the two control groups and the two therapy groups (P > 0.05). No side-effects like rashes, diarrhea, were observed in the two therapy groups. Conclusion For anorexia patients with AECOPD, oral lactobacillus complex capsules can safely control infection and reduce length of hospital stay.
10.Preliminary clinical oberservation on treatment of frozhen shoulder with local analgesic influsion equipment after arthroscopic arthrolysis
Sunyu CHEN ; Jian LI ; Zhanhao XIAO ; Ling PAN
The Journal of Practical Medicine 2016;32(3):444-446
Objective To observe the clinical efficacies of local analgesic influsion equipment after arthroscopic arthrolysis in treating frozen shoulder. Methods 84 patients suffered from frozen shoulder were randomly divided into two groups from February 2012 to July 2014 , Group one was treated with local analgesic influsion equipment, another group was not treated with it. both groups received arthroscopic arthrolysis The mean duration of follow-up was 11.2 months after operation.The range of shoulder motion , VAS and ASES scores were recorded before the operation and one week, one month, three months after the operation. Results All patients were involved , the range of shoulder motion , VAS and ASES scores improved significantly after operation(P < 0.05). The differences of the range shoulder motion, ASES score after operation,the patients with local analgesic equipment improved significantly (P < 0.05),but there were no significant difference of VAS scores between two groups at 3months after operation (P > 0.05). Conclusion Local analgesic equipment could alleviate the pain of patients with frozen shoulder earlier and more effectively , promote recovery quickly , achieve expected effects.