1.Heat shock protein and atherosclerosis
Chinese Journal of Pathophysiology 1986;0(01):-
Studying of atherosclerosis is more than a hundred year.There are many theories about this disease,but now most of us seems to agree with the stress-reponse theory.Heat shock proteins are the products produced at the first stage of atherosclerosis.And someone think that it may have something to do with atherosclerosis.This paper discussed the heat shock proteins and atherosclerosis respectively,and emphasized the relationship between them.
2.Changes and Mechanism of Colon Motility of the Rats in Multiple Organ Dysfunction Syndrome Induced by Bacterial Peritonitis
Zheyu CHEN ; Qinghui QI ; Lnan YAN
Chinese Journal of Bases and Clinics in General Surgery 2003;0(03):-
Objective To explore the changes of colon motility of the rats in multiple organ dysfunction syndrome (MODS) induced bacterial peritonitis and the effects of IL-6, TNF-? and induce nitricoxide synthase (iNOS) on colon motility. Methods Wistar rats were divided into two groups, which were the control group and the MODS group. The number of stool, the amplitude changes of circular smooth muscle strip, the length of smooth muscle cell, and the changes of serum NO in two groups were observed. The expressions of IL-6, TNF-? and iNOS protein and IL-6 mRNA, TNF-? mRNA and iNOS mRNA in distal colon were investigated by using immunohistochemical methods and RT-PCR. Results The numbers of stool and the amplitude in the MODS group were lower than those of the control group (P
3.Laparoscopic appendectomy in children: A report of 52 cases
Xianfeng YANG ; Qi CHEN ; Yan HUANG
Chinese Journal of Minimally Invasive Surgery 2001;0(06):-
Objective To explore the value of laparoscopic appendectomy (LA) in children. Methods A total of 52 children underwent laparoscopic appendectomy by using the 3-port technique from October 2002 to December 2004. Results The operations were performed smoothly in all the 52 cases. The operating time was 20~50 min (mean, 30 min). The patients were discharged from hospital at 2~4 postoperative days. Peri-port subcutaneous emphysema occurred in 2 cases. No other complications were found. Follow-up checkups for 3~29 months (mean, 14 months) in 49 cases found no intestinal obstruction or abdominal residual infection. Conclusions Laparoscopic appendectomy in children is safe, effective and minimally invasive.
4.The mechanism of tenuigenin for eliminating waste product accumulation in cerebral neurons of Alzheimer's disease rats via ubiquitin-proteasome pathway.
Qin CHEN ; Yi-Qing CHEN ; Hai-Yan YE ; Jain-Qi YU ; Qi-Quan SHI ; Yan HUANG
Chinese Journal of Integrated Traditional and Western Medicine 2015;35(3):327-332
OBJECTIVETo explore the scavenging action of tenuigenin (TEN) on intracerebral amyloid β protein (Aβ) aggregation and the abnormal phosphorylated tau protein and its mechanism in Alzheimer's disease (AD) rats' brain.
METHODSAβ1-40 was injected into the right CA1 region hippocampus to establish the AD model. Successfully modeled rats were divided into the model group, the low, middle, high TEN group. Rats were administered with TEN (18.5, 37.0, 74.0 mg/kg) by gastrogavage. Besides, a sham-operation group was set up. Expression levels of Aβ1-40 and Tau p-Ser262 were detected by immunohistochemistry. Expression levels of ubiquitin (Ub) and Ub-protein ligase E3 were measured by Western blotting.The content of 26S proteasome was detected by ELISA.
RESULTSImmunohistochemical results showed that the number of Aβ and Tau p-Ser262 positively reacted neurons significantly increased in model group, when compared with the sham-operation group (P < 0.01). Results of Western blot showed expression levels of ubiquitinated protein were up-regulated and those of Ub-protein ligase E3 were down-regulated in the model group (P < 0.01). ELISA results showed that the content of 26S proteasome significantly decreased in AD rats' brain (P < 0.01). Compared with the model group, expression levels of Aβ1-40, Tau p-Ser262, and Ub significantly decreased; expression levels of Ub-protein ligase E3 apparently increased; the content of 26S proteasome significantly increased in each TEN treatment group (P < 0.05, P < 0.01). Best effect was shown in 37.0 mg/kg and 74.0 mg/kg TEN groups.
CONCLUSIONSUb proteasome pathway (UPP) participated in the occurrence of AD. TEN could obviously reduce intracere- bral Aβ1-40 accumulation and abnormal tau phosphorylation.
Alzheimer Disease ; metabolism ; Amyloid beta-Peptides ; Animals ; Drugs, Chinese Herbal ; pharmacology ; Hippocampus ; metabolism ; Neurons ; metabolism ; Phosphorylation ; Proteasome Endopeptidase Complex ; metabolism ; Rats ; Ubiquitin-Protein Ligases ; metabolism ; Ubiquitins
5.Effect of fibrinolytic enzyme FⅡ from agkistrodon acutus venom on LPS-induced renal microvascular thrombosis
Xi LIN ; Jiashu CHEN ; Qi CHEN ; Pengxin QIU ; Guangmei YAN
Chinese Pharmacological Bulletin 1987;0(03):-
Aim To evaluate the effects of fibrinolytic enzyme FⅡ from agkistrodon acutus venom on an experimental model of kidney thrombus induced by lipopolysaccharide(LPS). Methods The model of microvascular thrombosis in the rabbits kidney was performed by the method of Hermida, which was induced by infusing LPS. Treatments were begun simultaneously with LPS infusion, through the contralateral marginal ear vein. Six different groups were established: NS 10 ml?h~-1 was infused as the negative control group, urokinase ~20 000 IU?kg~-1 ?h~-1 as positive control group, FⅡwas infused with the dosage of 0.1(Low-dose), 0.3 (medium-dose),0.6 (high-dose) mg?kg~-1 ?h~-1 . The further rabbits, which were given neither LPS nor FⅡ, were infused with saline solution through both marginal ear veins. Kinney sections were examined for the presence of fibrin microthrombi. The measurement of FDP concentrations was used to assess the degradation of microvascular thrombosis. Results Intense fibrin deposition was also detected and FDP concentrations were (78.21?4.79)% and (84.27?6.21)% at 2 and 6 hours after LPS administration in LPS-control group. Little fibrin deposition was detected and FDP concentration also increased in urokinase control group. A lot of fibrin deposition was detected in Low-dose FⅡ group,little fibrin deposition was detected in medium-dose FⅡ group, and no fibrin deposition was detected in high-dose FⅡ group. Additional all doses of FⅡ led to a significant increase in FDP concentration as compared with LPS-control group (P
6.Analysis the epidemiological features of 3,258 patients with allergic rhinitis in Yichang City.
Bo CHEN ; Zhimao ZHANG ; Zhi PEI ; Shihan CHEN ; Zhimei DU ; Yan LAN ; Bei HAN ; Qi QI
Journal of Clinical Otorhinolaryngology Head and Neck Surgery 2015;29(3):264-266
OBJECTIVE:
To investigate the epidemiological features in patients with allergic rhinitis (AR) in Yichang city, and put forward effective prevention and control measures.
METHOD:
Collecting the data of allergic rhinitis in city proper from 2010 to 2013, input the data into the database and used statistical analysis.
RESULT:
In recent years, the AR patients in this area increased year by year. The spring and the winter were the peak season of onset. The patients was constituted by young men. There was statistically significant difference between the age, the area,and the gender (P < 0.01). The history of allergy and the diseases related to the gender composition had statistical significance difference (P < 0.05). The allergens and the positive degree in gender, age structure had statistically significant difference (P < 0.01).
CONCLUSION
Need to conduct the healthy propaganda and education, optimizing the environment, change the bad habits, timely medical treatment, standard treatment.
Allergens
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China
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epidemiology
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Female
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Humans
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Male
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Rhinitis, Allergic
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epidemiology
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Seasons
7.Serological prenatal screening results of sIUFD when twin pregnancy
Danyan ZHUANG ; Zhiyang CHEN ; Qi YU ; Weihua YAN
Chinese Journal of Laboratory Medicine 2015;(10):705-708
Objective To study whether there was significant difference between pregnant women , data and the results of prenatal screening of single intrauterine fetal death ( sIUFD) when twin pregnancy and singleton pregnancy for guiding the clinical prenatal screening and risk consulting .Methods By comparative study, 56 cases of sIUFD when twin pregnancy were recorded from 2011 to 2014 in Ningbo Prenatal Diagnosis Center , all were natural pregnancy , the sistens gestational weeks were less than 14 weeks , and 4 993 natural singleton pregnancy .The pregnant women , data and the results of serological prenatal screening between sIUFD and singleton pregnancy were analyzed by t-test and rank sum test .Separately , the 56 cases of prenatal screening , risk value was calculated according to the twins and singleton , then the difference were analyzed combined with the results of follow-up.Results Pregnant women , data of two groups were analyzed, there were no statistically significant difference between sIUFD and singleton pregnancy .The age of sIUFD and singleton was (27 ±3)year-old and (27 ±3)year-old respectively, t=2.56, P>0.05; the weight of sIUFD and singleton was (55.2 ±10.23 ) kg and (56 ±10.34) kg, t=4.268, P>0.05.The gestational weeks of sIUFD and singleton were (39.21 ±0.78)weeks and (39.1 ±0.91) weeks, t=1.3, P>0.05;the weight of newborn was (3.38 ±0.41) kg and (3.31 ±0.43) kg, t=1.9, P>0.05.The AFP multiple of median (AFPMOM) of sIUFD and singleton was 1.41(0.99,1.83) and 1.02(0.84,1.24), Z=5.337, P<0.05.Free human chorionic gonadotropin beta multiple of median of sIUFD was 1.04(0.62, 1.64) and 0.99(0.67,1.51), Z=0.275, P>0.05;unconjugated estriol multiple of median of sIUFD and singleton was 1(0.79,1.16) and 1.01(0.85,1.21), Z=1.334, P>0.05.Trisomy 21 risk of sIUFD and singleton was 7 750(2 200,28 000) and 5 300(2 000,12 000), Z=2.093, P<0.05, that had significant difference.The 56 cases of prenatal screening risk value was calculated according to the twins and singleton , among whom 42 cases had the same conclusion , 14 cases had the different conclusion .Among them, according to singleton calculation , 3 cases for high risk, according to the twin calculation of high risk for 17 cases,χ2 =12.1, P <0.05.According to follow-up, all newborns were normal.Conclusions For the natural pregnancy , sIUFD when twin pregnancy , if the sistens gestational weeks less than 14 weeks, the risk of prenatal screening results calculated according to singleton will be more reasonable , as for the prenatal screening for twin pregnancy , the method needs further exploration .
8.Expression of CXC chemokine receptor 7 in atherosclerotic ApoE-defi-cient mice and therapeutic impact by atorvastatin
Xiaoli TU ; Qi CHEN ; Hongzhou ZHANG ; Ruijuan YAN ; Yanqing WU
Chinese Journal of Pathophysiology 2015;(12):2209-2215
AIM:To evaluate the expression level of CXC chemokine receptor 7 (CXCR7) in atherosclerotic apolipoprotein E-deficient ( ApoE-/-) mice induced by high-fat diet ( HFD) and the effects of atorvastatin on it .METH-ODS:ApoE-/-male mice (8-week-old) were used and were randomly divided into 3 groups following 1-week normal ro-dent diet:normal diet control (NDC) group , HFD group and HFD+statins (HFD+Sat) group.HE staining and oil red O staining were used to observe the atherosclerotic lesion burdens in the aortas .The expression of CXCR7 on the aortas was detected by Western blot and immunohistochemistry .The expression of Akt and endothelial nitric oxide synthase ( eNOS) in the aorta was determined by Western blot .RESULTS: Few lesions were found in the aortas in NDC group .Apparent atherosclerotic plaque burdens were seen in HFD group and HFD +Sat group, while the atherosclerotic plaque burdens in HFD+Sat group were notably reduced compared with HFD group .The protein levels of CXCR7, eNOS and Akt in aorta in HFD group and HFD+Sat group were significantly decreased compared with NDC group , while those in HFD+Sat group were increased compared with HFD group .The protein level of p-eNOS in the aorta and the concentration of NO in the plas-ma in HFD group were decreased compared with NDC group and HFD +Sat group.CONCLUSION: In ApoE-/-mice, HFD increases the lipid level and promotes the development of atherosclerosis by downregulating the expression of CXCR 7, Akt and eNOS.Atorvastatin reverses the above effect of hypercholesterolemia on the expression of CXCR 7, Akt and eNOS, thus playing the role in treating atherosclerosis .
9.Application of execution sheet for health education among heart failure patients
Lihua CHEN ; Juan WU ; Xiaoxia SHEN ; Qi LU ; Hai'ou YAN ;
Modern Clinical Nursing 2017;16(6):53-56
Objective To explore the effect of execution sheet for health education in chronic heart failure (CHF) patients. Methods About 50 CHF patients hospitalized from October 2015 to December 2015 were assigned as the control group and another 50 CHF patients hospitalized from January to March 2016 were set up as the experiment groups. The control group was instructed by the regular health education and the experiment group was instructed by the execution sheet for health education. Results The executive ability in the experiment group were stronger than that of control group (P<0.01). The level of self management among the patients in the experiment group was higher than those of the that control group. Conclusions The health education execution sheet increase the patients' self-management and strengthen nursing ability for discharged patients. It is worthy of popularization in clinical practice.
10.Observation of Differential Protein of Hypothalamus in the Hyperthyroidlsm Rats with Hyperactivity of Liver-Yang
Ling-Yan ZHOU ; Ze-Qi CHEN ; Wei LI ;
Chinese Journal of Information on Traditional Chinese Medicine 2006;0(05):-
Objective Utilization of proteome method,by observing differences on protein expression of hypothalamus in the hyperthyroidism rats with hyperactivity of liver-yang and normal rats,to search the differential protein.Methods Models of animal were prepared by ip L-T4 and Fuzi Decoction.Both the quantitative and qualitative changes of the protein expression were compared between model group and treated group by protein technique.Results Proteins were mainly displayed at range of pI 3~8,Mr(14.4~75)kD.18 protein increased and 24 protein decreased in model group compared with treated group, included Thioredoxin,Ubiquitin carboxyl-terminal hydrolase isozyme L1,Platelet-activating factor acetylhydrolase IB gamma subunit,glutamate dehydrogenase,dihydropyrimidinase-related protein 2, NSFL1 cofactor p47,Tubulin beta 5.Conc(?)sion There were 18 spots high expressed and 24 spots low expressed in the hyperthyroidism with hyperactivity of liver-yang,that maybe related with the develepment of the hyperthyroidism with hyperactivity of liver-yang.