3.Effectiveness and Safety of Rivaroxaban in Prevention of Deep Vein Thrombosis after Major Orthopedic Surgery
Deqiang CHEN ; Shikong JIA ; Hong WANG
Tianjin Medical Journal 2014;(2):176-178
Objective To evaluate the effectiveness and safety of rivaroxaban or enoxaparin in preventing deep vein thrombosis(DVT) and pulmonary embolism (PE) after major orthopedic surgery. Methods A total of 278 patients underwent major orthopedic surgery, from September 2009 to May 2012, were included in this study. One hundred and forty patients (the average age was 72.7 years, 42.8% were male) were treated with oral rivaroxaban, 10 mg/d. One hundred and thirty-eight patients (the average age was 69.9 years, 39.1%were male) were treated with subcutaneous enoxaparin,40 mg/d. Data were compared between two groups. The ending events included venous thrombosis VTE(DVT and PE), wound complica-tions, re-admission,need for blood transfusion,big and minor bleeding events and death. Results There were no signifi-cant differences in the incidence of VTE, blood transfusions and re- admission rates between two groups. The incidence rates of minor bleeding were 2.1%and 5.8%in two groups. There were no pulmonary embolism, severe bleeding or death in two groups of patients.Conclusion There were no significant differences in the incidence rates of VTE or major bleeding areas in patients with oral treatment of rivaroxaban and enoxaparin.Rivaroxaban was safer with a slightly decrease in minor bleeding and wound complications.
4.A meta-analysis on smoking and pulmonary tuberculosis incidence in Chinese people
Chongqing Medicine 2017;46(16):2224-2227,2232
Objective To study the relationship between smoking and the incidence of pulmonary tuberculosis(TB) in Chinese people.Methods The Pubmed database and three Chinese databases such as Wanfang Data,Veipu data(VIP) and China national knowledge infrastructure database (CNKI) were retrieved.The literatures on the relationship between smoking and pulmonary TB incidence in Chinese people published before April 2016 were analyzed.Results Fifteen studies were included,after excluding 1 low quality study,the rest had no statistical heterogeneity.The merged odd ratio (OR) was 1.71,95 % confidence interval (CI) 1.51-1.90.Two studies observed the relationship between the amount of cigarettes and TB pathogenesis,but there was heterogeneity and could not be further merged the OR value for conducting analysis.No subgroup analysis of gender was performed in all studies.Conclusion The risk suffering from pulmonary TB in Chinese smokers is 1.71 fold of non-smokers,and smoking increases the risk of pulmonary TB onset.
5.Protective effects of hyperbaric oxygen in secondary spinal cord injury
Fang LIU ; Hong CHEN ; Hua SU ; Jia CHEN
Chinese Journal of Physical Medicine and Rehabilitation 2010;32(9):649-652
Objective To investigate the mechanism underlying the protective effect of hyperbaric oxygen (HBO) in secondary spinal cord injury (SCI). Methods Models of acute SCI were established in 96 SpragueDawley rats using Allen's dropping weight technique. The rats were then divided into a HBO group, a high pressure nitrogen normal oxygen group, a normal pressure oxygen group and a normal pressure air group. The injured spinal cords were sampled for morphological studies at the 1 st, 3rd, 7th and 14th day after injury. Apoptotic cells were labeled using the TUNEL technique, and the expression of caspase-3 was detected. The neurological functionality of the spinal cord was assessed by open field locomotor evaluation ( the BBB score). Results The expression of caspase3 in the HBO group decreased significantly more than in the other groups after injury. The number of TUNEL-positive cells was significantly lower in the HBO group as well. Neurological function improved significantly after HBO therapy. Conclusions HBO can down-regulate the expression of caspase-3 and inhibit cell apoptosis in rats after SCI.The protective effect of HBO was related with the oxygen level.
7.Prostatic inflammation-induced chronic pelvic pain: Roles of substance P and c-fos in the spinal cord.
Ying-jia LIU ; Guo-hong SONG ; Chen ZHANG
National Journal of Andrology 2015;21(8):681-686
OBJECTIVETo explore the possible pain mechanism of chronic prostatitis/chronic pelvic pain syndrome (CP/CPPS).
METHODSThe models of CP/CPPS were established in male Wistar rats by the autoimmune method. The paw withdrawal threshold (PWT) was detected using Von Frey filament. The expressions of the substance P and c-fos in the prostate and spinal L5-S2 segments were determined by immunohistochemistry followed by analysis of their correlation with CP/CPPS.
RESULTSCompared with the control rats, the CP/CPPS models showed significantly decreased PWT (P < 0.05), remarkable prostatic inflammation, enlarged scope of lesions, and obvious interstitial lymphocytic infiltration (P < 0.05). Both the expressions of substance P and c-fos were markedly elevated in the prostate and spinal dorsal horn (L5-S2) of the rat models (P < 0.05), but the expression of substance P in the prostate exhibited no correlation with that in the spinal cord (r = 0.099, P = 0.338), nor did that of c-fos (r = 0.027, P = 0.454).
CONCLUSIONThe upregulated expressions of substance P and c-fos in the spinal cord L5-S2 sections may be associated with the pain mechanism of CP/CPPS.
Animals ; Chronic Disease ; Immunohistochemistry ; Male ; Pelvic Pain ; etiology ; metabolism ; Prostate ; metabolism ; Prostatitis ; complications ; metabolism ; Proto-Oncogene Proteins c-fos ; metabolism ; Rats ; Rats, Wistar ; Spinal Cord ; metabolism ; Substance P ; metabolism ; Syndrome ; Up-Regulation
8.Immune Protection against H9N2 Provided by H1N1 Pre-infection in Pigs.
Jia WANG ; Maocai WU ; Wenshan HONG ; Zuoyi ZHENG ; Rirong CHEN
Chinese Journal of Virology 2015;31(4):357-362
To explore the impact of the history of infection by the influenza A virus subtype H1N1 on secondary infection by the influenza A virus subtype H9N2, pigs non-infected and pre-infected with H1N1 were inoculated with H9N2 in parallel to compare nasal shedding and seroconversion patterns. Unlike pigs without a background of H1N1 infection, nasal shedding was not detected in pigs pre-infected with H1N1. Both groups generated antibodies against H9N2. However, levels of H1N1 antibodies in pigs pre-infected with H1N1 increased quickly and dramatically after challenge with H9N2. Cross-reaction was not observed between H1N1 antibodies and H9N2 viruses. These findings suggest that circulation of the H1N1 virus might be a barrier to the introduction and transmission of the avian H9N2 virus, thereby delaying its adaptation in pigs.
Animals
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Antibodies, Viral
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immunology
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Cross Reactions
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Immune Sera
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immunology
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Influenza A Virus, H1N1 Subtype
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immunology
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physiology
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Influenza A Virus, H9N2 Subtype
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immunology
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Orthomyxoviridae Infections
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blood
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immunology
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Species Specificity
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Swine
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immunology
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virology
10.Optimal concentration of sodium taurocholate inducing acute necrosis pancreatitis in a rat
Jiahua QIU ; Yijin CHEN ; Lin JIA ; Yaoxing HUANG ; Hong DU
Chinese Journal of Pancreatology 2010;10(2):120-123
Objective To explore the dose-effect relationship and optimal concentration of sodium taurocholate (NaTc) to establish acute necrosis pancreatitis (ANP) complicating MODS in a rat. Methods 280 SD rats were randomly divided into control group (n =40) and 3.5%, 4%, 4.5%, 5% ANP group (n = 60, respectively). ANP groups were induced by retrograde injection of NaTc solution into the pancreatic duct of rats. Rats in each model group were sacrificed at 1, 3, 6, 12 and 24 h after the model induction. Serum amylase, serum total bilirubin, creatinine, blood gas analysis, and pathological changes of pancreas were determined. Survival rate at 24 h after the model induction was observed in other 20 ANP rats in each group. Results In each groups, the serum amylase level, creatinine, blood gas analysis and pathological changes all increased corresponding to the increase of NaTc, and there was significant dose-effect relationship and time-effect. In 4.5% group, the dysfunction of liver and kidney reached the peak at 6 h,while the respiratory dysfunction reached its peak at 12 h. Its incidence of MODS was 52.5%, which was significantly higher than those in 3.5%, 4.0% group (15.0% and 37.5%) ;and 24 h survival rate of 4.5% group was 65%, which was significantly higher than that in 5% group (30%). Conclusions 4.5% NaTc solution may be the optimal concentration to establish the ANP model, which had higher incidence of MODS and 24 h survival rate.