OBJECTIVE To explore the suitable hospital infection control measures in health centers of poverty-striken villages,in order to improve the management of hospital infection,decrease hospital infection rate and protect the health of medical staff and patients.METHODS The status quo of hospital infection in health centers of poverty-striken villages,was investigated in 20 small towns health centers with were randomly divided into two groups:test group(n=15)and control group(n=5).The suitable hospital infection control measures were explored from 5 points.The effect of infection control by before-after controlled study of experimental group and randomized controlled study of control group was anal yzed.RESULTS The rate of hospital infection in test group was decreased from 7.60% to 1.98% and at in control group didn't change,the difference was significant.CONCLUSIONS The managements of establishment of the suitable hospital infection control measures in health centers of poverty-striken villages have been put into practice and gained good result.

Objective To explore the medication rules of Professor Gao Zhongying in treatment of chronic atrophic gastritis on basis of his curative prescriptions.Method Prof.Gao Zhongying clinic medical records were used as data resource.Database was built by using Traditional Chinese Medicine Inheritance Support System (Version 2.5).The core combination and assocical rules among the drugs were confirmed by frequency analysis and assocical rules analysis methods.Results We collected 60 clinical formulas including 83 kinds of Chinese herbs.The bighest frequency used simply drugs were Fritilariae Thunbergh Bulbus,Trichosanthis radix,Galli Gigerii Endothelium Corneum and so on.The most frequency drug combination were Fritilariae Thunbergh Bulbus,Trichosanthis radix,Fritilariae Thunbergh Bulbus,Galli Gigerii Endothelium Corneum,Trichosanthis radix,Galli Gigerii Endothelium Corneum,Fritilariae Thunbergh Bulbus,Curcumae Rhizoma and so on.The drug association rules of drug combination were 447 items.Conclusions The medication rules embodied the thoughts of Professor Gao Zhongying of replenishing qi to invigorate the spleen and regulating the stomach to moisten dryness was the main method in treatment of chronic atrophic gastritis and deficiency of spleen and dryness of stomach,which was the key pathogenesis in occurrence and development of chronic atrophic gastritis.

Objective: To explore aspirin resistance (AR) phenomenon in patients with coronary artery disease (CAD) for secondary prevention and to study the relationships between AR and COX1, COX2, TBXA2R gene polymorphisms. Methods: A total of 2881 CAD patients taken aspirin (100 mg/day) in 7 consecutive days were enrolled. Among them, 2 groups were established as AR group, n=166 and Control group, n=200 aspirin sensitive patients. Platelet aggregation function was induced by arachidonic acid (AA), COX1, COX2 and TBXA2R gene polymorphisms were examined by polymerase chain reaction-restricted fragment length polymorphisms (PCR-RFLP) method. Results: The occurrence rate of AR was 5.76% (166/2881). There were 8 tagSNPs locus in 3 genes as in COX1:(rs3842788), (rs4273915), (rs7866582); in: COX2 (rs3218625); in TBXA2R: (rs2238630), (rs2238631), (rs2238633), (rs3786989). The frequencies of wild type, heterozygous genotype and homozygous genotype were similar between 2 groups. Conclusion: The incidence rate of AR is not high in CHD patients with regular aspirin medication; single nucleotide gene polymorphisms of COX1, COX2 and TBXA2R have no obvious correlation to AR.

Harmful substances are produced during the metabolism of alcohol in the human body, which causes liver disease.The mechanism of oxidative stress is the main pathogenesis of alcoholic liver disease, which plays a major role in the occurrence and development of alcoholic liver disease.Alcohol-induced oxidative stress mediated by reactive oxygen species(ROS)/reactive nitrogen species(RNS) brings about liver disease via apoptotic signaling pathway and MAPK signaling pathway, and alleviates liver disease through Nrf2 signaling pathway.In this paper, the studies on the mechanism of oxidative stress in alcoholic liver disease are reviewed.

This paper summarized the development of "Internet + nursing service" in the first six provinces and cities, analyzed its characteristics and advantages, combed the existing problems, so as to further promote and develop "Internet + nursing service", so that the service can truly benefit the people.

Objective:To explore the status and influencing factors of physical activity, sedentary behavior in middle-aged and elderly patients with stable coronary heart disease, and to provide reference for clinical medical staff to formulate targeted intervention measures.Methods:This was a cross-sectional survey. From March to June 2022, a convenience sampling was used to select 378 middle-aged and elderly patients with stable coronary heart disease in the ward and clinic of Department of Cardiology, Jinshan Hospital, Fudan University. The general information questionnaire, the International Physical Activity Questionnaire, the Adult Sedentary Behavior Questionnaire, the Tampa Scale for Kinesiophobia Heart, the Self-efficacy for Chronic Disease Scale and the Social Support Rating Scale were used for investigation.Results:The total metabolic equivalent of physical activity and sedentary time in middle-aged and elderly patients with stable coronary heart disease were 31.40 (21.73, 49.67) MET-h/w and 8(7, 9) h/d respectively. The 39.7% (150/378) patients reached physical activity guidelines recommendations and 61.4% (232/378) patients had a sedentary time ≥ 8 h/d. The 19.0% (72/378) patients were identified as physically active/low sedentary group, 20.6% (78/378) patients were identified as physically active/high sedentary group, 19.6% (74/378) patients were in physically inactive/low sedentary group and 40.7% (154/378) patients were in physically inactive/high sedentary group. The stepwise multiple regression analysis showed that sedentary behavior, working status, kinesiophobia, objective support and disease duration had significant impacts on physical activity ( t values were -9.81-2.67, all P<0.05). The influencing factors of sedentary behavior were physical activity, objective support, support utilization, gender, educational level and kinesiophobia ( t values were -10.77-4.63, all P<0.05). Conclusions:The status of physical activity, sedentary behavior in middle-aged and elderly patients with stable coronary heart disease is not good. Medical staff should intervene corresponding influencing factors to reduce the risk of physical inactivity and high sedentary behavior in this group.

Objective To explore the effect of wind-dispelling drugs and deficiency-tonifying drugs of Hou’s Hei San,a TCMformula used in treatment of apoplexy,on axonal growth inhibitory factors Nogo-A,NgR,RhoA,Rock2 of rats with cerebral ischemia.Methods The model of permanent middle cere-bral artery occlusion (pMCAO)was induced by using Longa method.All rats were randomly divided in-to sham-operation group,model group,wind-dispelling drugs group(7.70 g/kg),deficiency-tonifying drugs group(2.59 g/kg)and combined drugs group(10.50 g/kg).After operation,each 12 h the rats were intragastrically administered for 72 h.Then the rats were sacrificed and their brain tissue were re-sected.The protein expression of Nogo-A,NgR,RhoA and Rock2 in hippocampus CA1 were detected by using Western blot.Results The protein expressions of Nogo-A,NgR,RhoA and Rock2 in model group increased significantly,compared with sham-operation group(P <0.01 ).Compared with model group, the expression of NgR in wind-dispelling drugs group,deficiency-tonifying drugs group and combined drugs group decreased remarkably(P <0.01).The expression of Nogo-A and Rock2 decreased as well, but only combined drugs group showed a statistically difference(P <0.05).Conclusion The effect of wind-dispelling drugs and deficiency-tonifying drugs of Hou’s Hei San against cerebral ischemia damage would be via regulating axonal growth inhibitory signal pathway Nogo-A /RhoA /Rock2 to promote the re-covery of neural function.

Objective:To evaluate the role of nuclear factor E2-related factor 2 (Nrf2)/heme oxidase-1 (HO-1) in reduction of renal ischemia-reperfusion (I/R) injury by the human umbilical cord mesenchymal stem cells (hucMSCs)-derived exosomes (hucMSCs-exo) in mice.Methods:The hucMSCs were cultured, and exosomes were extracted and identified by transmission electron microscopy, nanoparticle tracking analysis and Western blot. Thirty-six male SPF-grade C57BL/6 mice, weighing 20-25 g, were used. Thirty mice were selected and divided into 5 groups ( n=6 each) by a random number table method: sham operation group (Sham group), sham operation + Nrf2 inhibitor ML385 group (Sham + ML385 group), renal I/R group (I/R group), renal I/R + exosome group (I/R+ EXO group), and renal I/R + exosome + Nrf2 inhibitor ML385 group (I/R+ EXO+ ML385 group). A model of renal I/R injury was prepared by clamping the bilateral renal pedicles for 45 min followed by perfusion in anesthetized animals. ML385 30 mg/kg was intraperitoneally injected at 45 min before preparing the model in Sham+ ML385 group and I/R+ EXO+ ML385 group, and hucMSCs-exo 100 μg was injected via the tail vein at 15 min before reperfusion in I/R+ EXO group and I/R+ EXO+ ML385 group. Serum blood urea nitrogen (BUN) and creatinine (Cr) concentrations were detected at 24 h of reperfusion. The renal tissues were obtained for examination of the pathological changes and for determination of contents of interleukin-6 (IL-6), tumor necrosis factor-alpha (TNF-α) and malondialdehyde (MDA), superoxide dismutase (SOD) activity and reactive oxygen species (ROS) levels and expression of Nrf2 and HO-1 protein and mRNA (by Western blot and quantitative real-time polymerase chain reaction). The left 6 mice were allocated to sham operation group (Sham-IM group, n=3) and renal I/R group (I/R-IM group, n=3) by a random number table method for VISQUE in living imaging observation. Results:The exosomes showed a typical cup-shaped morphology with a transmission electron microscope, the nanoparticles tracked and analyzed the average diameter of the exosome, with an average diameter of 96.7 nm, and the positive expression of surface markers CD9, CD63 and TSG101 was detected using Western blot. The renal fluorescence intensity value was significantly increased in I/R-IM group as compared with Sham-IM group ( P<0.05). Compared with Sham group, the serum BUN and Cr concentrations were significantly increased, the contents of IL-6, TNF-α and MDA and ROS levels were increased, the activity of SOD was decreased, the expression of Nrf2 and HO-1 protein and mRNA was down-regulated ( P<0.05), and the pathological changes of renal tissues were aggravated in I/R group, and no significant change was found in serum BUN and Cr concentrations in Sham+ ML385 group ( P>0.05). Compared with I/R group, the serum BUN and Cr concentrations were significantly decreased, the contents of IL-6, TNF-α and MDA and ROS levels were decreased, the activity of SOD was increased, the expression of Nrf2 and HO-1 protein and mRNA was up-regulated ( P<0.05), and the pathological changes of renal tissues were significantly attenuated in I/R+ EXO group. Compared with I/R+ EXO group, the serum BUN and Cr concentrations were significantly increased, the contents of IL-6, TNF-α and MDA and ROS levels were increased, the activity of SOD was decreased, the expression of Nrf2 and HO-1 protein and mRNA was down-regulated ( P<0.05), and the pathological changes of renal tissues were aggravated in I/R+ EXO+ ML385 group. Conclusions:The mechanism by which hucMSCs-exo reduces renal I/R injury may be related to activation of the Nrf2/HO-1 signaling pathway in mice.

Silicosis is a progressive pulmonary fibrosis disease caused by long-term inhalation of a large amount of free crystalline silica, which seriously threatens the health of relevant workers and causes a huge amount of disease burden. The pathogenesis of silicosis is complex and unclear, it has been reported that long non coding RNA (lncRNA) plays an important role in the pathogenesis of silicosis. In order to improve the understanding of the disease and provide directions for the prevention and treatment of silicosis, this article reviewed the mechanism of lncRNA in the pathogenesis and disease progression of silicosis.