AIM:Todeterminetheeffectofsalviaextractonangiogenesisofthemyocardiumintheratswith myocardial infarction (MI) and to analyze its possible mechanism .METHODS: Left coronary artery of Sprague-Dawley rats was ligated to establish a MI model .The rats were randomly divided into MI model group , 3 different dose groups of salvia (10, 20 and 40 mg? kg-1? d-1), and sham operation group.Each group consisted of 8 rats.The rats in all treat-ment groups were orally administered with the salvia extract , and the rats in MI group and sham operation group were fed with the same volume of saline .The rats were sacrificed 4 weeks later .The hemodynamic changes of the rats were deter-mined , and the segmental heart samples were used for morphological observation by hematoxylin and eosin staining , Masson staining, or electron microscopic analysis.The expression of vascular endothelial growth factor (VEGF) and cluster of dif-ferentiation 34 ( CD34 ) was analyzed according to immunohistochemistry .RESULTS: Compared with sham operation group, the morphological changes of the myocardium in MI group were disordered , part of myocardial cell outline disap-peared , and obvious fibrosis in the necrosis myocardial tissue and fuzzy or disappearing microvascular ultrastructure were al -so observed .Compared with MI group , the number of new microvessels in all the treatment groups increased obviously , and the morphological changes of the endothelial cells were relatively complete according to electron microscopy .Compared with sham operation group , the protein expression of VEGF and CD 34 in the cytoplasm of the myocardial tissues in MI group in-creased only a little .Compared with MI group , the protein expression of VEGF and CD 34 in the cytoplasm of the myocardi-al tissues in all treatment groups increased significantly ( P<0.01 ) .CONCLUSION: Salvia extract obviously promotes angiogenesis of the myocardial tissues in the rats after myocardial infarction .

Objective: To identify the risk of HIV infection among men who have sex with men (MSM) with different sex roles, so as to provide insights into the prevention and control strategies for HIV infection among MSM. Methods: Peer-driven sampling method was employed to recruit MSM in a city in Xinjiang Uygur Autonomous Region in 2022, a questionnaire survey was conducted to collect demographic information and sexual behaviors, and laboratory tests were conducted to detect HIV and syphilis antibodies. The characteristics of sexual behaviors among MSM with different sex roles and prevalence of HIV infection were analyzed, and factors affecting HIV infection among MSM were identified using a multivariable logistic regression model. Results: A total of 666 MSM were investigated, with a mean age of (28.70±8.09) years and 577 local residents (86.64%). There were 166 insertive MSM (24.92%), 179 receptive MSM (26.88%) and 321 both receptive and insertive MSM (48.20%). The HIV infection rate was 8.26%, with 3.61% in insertive MSM, 13.41% in receptive MSM, and 7.79% in both receptive and insertive MSM. Significant differences were seen in age, recruitment route, sexual orientation, age of first homosexual sex, condom use with temporary partners and HIV infection rate among different sex roles (all P<0.05). Multivariable logistic regression analysis showed that insertive MSM had a lower risk of HIV infection than both receptive and insertive MSM (OR=0.513, 95%CI: 0.272-0.969), while there was no significant difference in the risk of HIV infection between receptive MSM and both receptive and insertive MSM (OR=2.088, 95%CI: 0.081-5.380). Conclusions The risk of HIV infection among receptive and both receptive and insertive MSM are higher than that among insertive MSM. Classified measures should be taken to reduce the transmission of HIV in this population.

Objective To evaluate the efficacy and safety of actovegin against acute oral mucositis through a randomized controlled multicenter trial for nasopharyngeal carcinoma(NPC) patients treated by chemo-radiotherapy. Methods From February 2006 to May 2007,a total of 161 patients with newly diagnosed stage Ⅱ-ⅣA(1992 Fuzhou Stage) NPC were randomly assigned to the prevention group,the treatment group and the control group. All patients received current chemo-radiotherapy ± neoadjuvant chemotherapy. Radiation technique and dose were similar among the three groups. Intravenous infusion of aeovegin was started when radiation started in the prevention group and when grade 2 mueositis occurred in the treatment group,which was given 30 ml daily ,5 times per week until the end of radiotherapy. Criteria of NCI CTC 2.0 and VRS were used to evaluate acute oral mueositis and pain degree,respectively. Results 154 patients were eligible for the efficacy analysis,including 49 in the prevention group,53 in the treatment group and 52 in the control group. In the prevention group and the control group, the incidence was 31% and 56% (P=0.011) for grade 3-4 mucositis,59% and 83% (P=0.009) for grade 2-3 pain. In the treatment group and the control group,the corresponding number was 38% and 60% (P=0.023) ,70% and 90%, (P=0.014). The prevention group had a lower incidence(P=0.021) and longer average interval(P=0.009) of grade 2 mucositis when comparing with the control group. No drug-related adverse event was observed. Conclusions Prophylactic or therapeutic use of actovegin by intravenous infusion can significantly reduce the severity of ehemo-radiotherapy induced oral mucositis and pain. The prophylactic use may also postpone and decrease the incidence of grade 2 mucositis,which deserves clinic application.

AIM: To Study the influence of plasma TG level on the contents of serum HDL subpopulations. METHODS: Classified by the contents of serum TG, the serum level of HDL subpopulations in 106 normal TC and 183 high TC subjects were analyzed by two-dimensional gel electrophoresis coupled with immunodection method. RESULTS: The apo-AⅠcontents of per-?_1-HDL, HDL_~3c , HDL_~3b and HDL_~3a were higher in a certain extent in TC high subjects vs corresponding TC desirable subjects. The apo-AⅠ contents of per-?_1-HDL (in borer-line high TG subgroup) and HDL_~3b (in very high TG subgroup) were significantly higher (P

To analyze the relationship between obesity with related measurable indicators and insulin resistance among the residents over 50-year-old in Wuxi area.The questionnaire survey,physical examination,and relevant biochemical measurements as well as gender,age,height,body w eight,waist circumference,and hip circumference were obtained.The prevalence of obesity was 11.95％ of which 57.24％ were with central obesity,and the prevalence in male was higher than that in female(P＜0.05).With inereasing body mass index (BMI) and waist circumference(WC),the prevalence of insulin resistance increased gradually (P ＜ 0.05).Meanwhile,With the increasing HOMA-IR,the prevalence of obesity and central obesity also gradually increased (P＜0.05).BMI,WC,and waist-to-hip ratio can effectively predict insulin resistance.The cut-off point of waist circumference was 87.5 cm for male,and 84 cm for female.At the same level of body mass index,metabolic measurements in central obesity group were higher than those of non-central obesity group with the same body mass index,especially in normal weight group.The related metabolic measurements of metabolic obesity but normal weight group were mostly higher than metabolically healthy but obese group,and there were statistically significant differences in fasting blood glucose,fasting insulin,HOMA-IR and HOMA-β.Obesity,especially central obesity,is closely related to insulin resistance among residents over 50-year-old in Wuxi area.Meanwhile,waist circumference may effectively predict insulin resistance and may serve as a parameter in the occurrence of metabolic syndrome and cardiovascular diseases.

AIM: To detect the change of composition and ratio of serum HDL subclasses and explore the relationship between these changes and the plasma lipid level in patients with hyperlipidemia. METHODS: The components of subclasses of serum HDL in 172 middle and old aged patients with hyperlipidemia and 115 healthy middle and old aged were determined by dimensional gel electrophoresis associated with immuno-blotting method. RESULTS: Compared to the healthy controls, the contents of pre ?_1-HDL, HDL_~3b and HDL_~3a were significantly higher (P

Objective To explore the effect of astragalus extracts on adherence, migration, cell viability, microvascular formation, and eNOS expression in bone marrow-derived endothelial progenitor cells (EPCs) of rats. Methods EPCs were cultured, isolated and identified in vitro and divided into four groups: low titer group (10-4 g/L of astragalus extracts), middle titer group (10-3 g/L of astragalus extracts), high titer group (10-2 g/L of astragalus extracts) and control group. The effects of astragalus extract on adhesion, migration or microvascular formation were observed under the inverted microscope and com?pared between all groups;Cell viability was detected by MTT assay;mRNA transcription and protein expression levels of en?dothelial nitric oxide synthase (eNOS) in EPCs were detected by reverse transcription PCR (RT-PCR) and Western blot re?spectively. Results Compared with the control group, cell adhesion, migration and microvascular formation of EPCs all en?hanced with addition of astragalus extracts in a dose dependent manner (F=15.256, 13.633, 97.549 respectively, and P <0.05 in all cases); Cell vitality of EPCs increased with administration of astragalus extracts in a time and dose dependant manner. (F=9.755 for time and F=10.18 for dose). mRNA transcription and protein expression of eNOS in EPCs were up-reg?ulated with addition of astragalus extracts in a dose dependent manner (F=56.356 and 77.125 respectively, and P<0.05 in both cases). Conclusion Astragalus extracts play important role in angiogenesis in EPCs probably through up-regulating expressions of eNOS.

Objective To analyze and evaluate the current progress of blood transfusion department establishment and clinical blood transfusion management in Hangzhou,China.Methods Questionnaires were sent to 35 medical institutions to gather information regarding blood transfusion department establishment and clinical blood transfusion management in the provincial,municipal and county tier hospitals.The investigated criteria covered the establishment of the hospital blood transfusion management committee,the utilization of software and hardware of the transfusion department,the compatibility status of various software systems in use and performance evaluation of these systems in clinical applications,etc.In addition,tests were also conducted on members of the blood transfusion departments to confirm whether they are properly trained and present adequated knowledge of clinical blood applications Results were then collected for statistical and descriptive analyses.Results The results out of the 35 hospitals surveyed presented no obvious statistical significance.Nevertheless,the average score of these hospitals in different segments helped us to reach the following conclusions:1,Triple-A hospitals scored the highest average score for patient clinical status evaluation pre-transfusion;2.Double-B hospitals came first when it comes to patient clinical status evaluation post transfusion;3.Triple-B hospitals possessed the most thorough clinical records for transfusion treatment.A total of 350 papers were issued and 350 papers were collected,with 327 out of the 350 considered valid.As for the test results regarding the departments members,triple-A,triple-B and double-A hospitals scored significantly higher than double-B and unranked hospitals.(P＜0.05);.350 clinical transfusion records were also collected and 247 of which are considered valid.It appears there are numerous difference in Hb indexes among the tested hospitals and even the departments of internal medicine and surgical presented different takes on the subject as well.Conclusion The clinical blood transfusion management in Zhejiang province and the establishment of blood transfusion departments still need to be improved.A plan to manage clinical blood use need to be carried out ASAP,which would specify evaluation references,standardize personnel training and tech investments.Ultimately,we hope such actions would help to further regulate the clinical blood use in the region.

Aim To explore the effect of protein kinase D1 (PKD1 )on adherence,migration,proliferation, microvascular formation,and eNOS expression in bone marrow-derived endothelial progenitor cells(EPCs)of rats.Method The EPCs were isolated from bone marrow of rats,cultured and detected,the effects of PKD1 and its specific blocking agent CID755673 on adhesion,migration,proliferation,or microvascular formation were observed,as well as mRNA and protein expression of endothelial nitric oxide synthase (eNOS ) in EPCs.Results PKD1 significantly promoted adhe-sion,migration,proliferation and microvascular forma-tion of EPCs,and upregulated the mRNA and protein expression of eNOS in EPCs,according to the cell cul-ture experiments of EPCs in vitro.Conclusion PKD1 has the role of angiogenesis through regulation of EPCs,which might be dependent on eNOS.

Objective To study the phylogenetic evolution and genetic variations of gag gene among the prevalent human immunodeficiency virus (HIV )‐1 strains in Guangxi Zhuang Autonomous Region . Methods Plasma samples of 158 HIV‐1 infected patients in Guangxi area were collected during October 2011 to March 2012 .The gag gene fragments of HIV‐1 were amplified by reverse transcription/nested‐polymerase chain reaction and then sequenced .MEGA 5 .03 was utilized to construct phylogenetic tree and to calculate the genetic distances and selection pressures (globle ω) of gag gene and its coding regions . The comparisons between two groups were tested by Student′s t test ,and the comparisons of multiple groups were tested by one‐way ANOVA .Results A total of 140 amplification products of gag gene were obtained from 158 samples .Four subtypes of HIV‐1 were found ,including CRF01_AE (80 ,57 .1% ) , CRF08_BC (46 ,32 .9% ) ,CRF07_BC (10 ,7 .1% ) ,and subtype B (B′) (4 ,2 .9% ) .The genetic distances of gag gene of the above subtypes were 0 .036 ± 0 .001 ,0 .031 ± 0 .002 ,0 .043 ± 0 .003 and 0 .102 ± 0 .006 ,respectively ,with statistical significance (F=220 .62 ,P<0 .01) .The p17 and p24 coding regions suffered negative selection pressure (globleω<1) .Neither the globle ω in p17 region nor that in p24 region had significant differences among different subtypes (F=0 .761 ,P=0 .469 and F=0 .037 ,P=0 .964 , respectively ) . Conclusion CRF01_AE is the major subtypes of HIV‐1 in Guangxi Zhuang Autonomous Region .The coding regions of gag gene are relatively conserved during evolution .Changes of HIV‐1 prevalence ,however ,may affect the genetic variation of gag gene ,which should be continuously monitored .