Objective To investigate the lung protection of remifentanil in rats with acute severe hemorrhagic shock (ASHS).Methods A total of 50 healthy adult SD rats were selected and randomly divided into model group,sham-operation group and low,middle,high dose test groups,10 rats in each group.Model group were ASHS model rats.Other groups were intravenous given injection with loading-dose of remifentanil 1 μg · kg-1,then low,middle and high dose test groups were intravenous infusion with 0.2,0.6,1.2 μg · kg-1 · min-1 remifentanil.The lung hilus in model group and sham-operation group were dissociate without blockage,while model group and sham-operation group were infused with 0.9％ NaC1 as the same dose of high-dose test group.The injuries of lung tissues in rats were judged by pathological examination.The wet to dry weight ratio (W/D) of lung tissue,malondialdehyde (MDA),activity of superoxide dismutase (SOD),content of nitrogen oxide (NO) were detected in each group.Results The W/D,MDA,SOD,NO in model group were 2.97 ± 0.17,(3.45 ± 1.48) nmol · mg-1 prot,(11.73 ± 1.78)U · mg-1 prot,(0.13 ±0.03)μmol · mg-1 prot,had no significant difference with those in low dose test group,which were 2.71 ± 0.12,(2.90 ± 1.03) nmol · mg-1 prot,(14.44 ± 1.55) U · mg-1 prot,(0.16 ± 0.05) μmol · mg-1 prot (all P ＞ 0.05).The W/D,MDA,SOD,NO in middle-dose test group were 2.33 ±0.16,(2.29 ±0.72) nmol · mg-1 prot,(15.59 ± 1.80)U · mg-1prot,(0.19 ±0.05) μmol· mg-1prot,and those in high-dose test group were 2.08 ± 0.07,(1.81 ± 0.64)nmol · mg-1 prot,(17.47 ± 1.10)U · mg-1prot,(0.26 ±0.08) μmol · mg-1prot,these indexes in middle-dose and high-dose test groups had significant difference with model group (all P ＜ 0.05).Conclusion Remifentanil can inhibit lipid peroxidation,reduce injury of lung tissue,so as to protect the lung of ASHS rats.

OBJECTIVETo identify the gene causing hereditary multiple exostoses in a Chinese pedigree.

METHODSLinkage analysis was carried out in the family using microsatellite markers on chromosome 8, 11 and 19 respectively. To detect the mutation, the whole coding sequence and the intron-exon boundaries of the candidate gene were amplified and sequenced. The reverse transcriptase-polymerase chain reaction (RT-PCR) was performed to amplify the mutated mRNA.

RESULTSThe disease-causing gene of the family was linked to the EXT2 locus on chromosome 11. A mutation IVS2+1G>A was detected in EXT2 and resulting in 221 bp deletion from 316 to 536 of coding sequence(CDS), which was co-segregated with the disease phenotype. This change led to deletion from codon 106 to codon 178 and subsequent 2 nucleotides, producing a frameshift and truncated protein of 125 aa.

CONCLUSIONThe mutation IVS2+1G>A is the disease-causing mutation in the Chinese pedigree with hereditary multiple exostoses.

Exostoses, Multiple Hereditary ; genetics ; Female ; Genes, Tumor Suppressor ; Genetic Linkage ; Humans ; Male ; Mutation ; N-Acetylglucosaminyltransferases ; genetics ; Reverse Transcriptase Polymerase Chain Reaction

Objective To investigate the iodine nourishment in women of child-beating age in high risk region of iodine deficiency disorders (IDD) in Qinghai Province. Methods According to The Notice to Launch a Reinforced Survey on IDD in High Risk Region issued by The Ministry of Public Health, 17 counties in 6 districts were selected as investigated area in Qinghai Province in 2007, using two stage cluster sampling and combining The National IDD Preliminary Surveillance Scheme, 30 women aged from 18 to 40 years were selected in each village, 1 or 2 villages in each town, 3 to 5 towns in each county, who were divided into newly wedding, pregnant, lactation and other women of child-bearing age. Iodine concentration in urine was detected by the method of As3+-Ce4+catalytic spectrophotometry. Results One thousand six hundreds and four urine iodine samples were analyzed. The median was 93.3 μg/L,52.1%(836/1604),31.8%(510/1604) and 12.4%(199/1604) was lower than 100,50 and 20 μg/L, respectively. It was 70.5%(527/747) and 43.0%(128/298) of women in Yushu and Haixi that had urinary iodine lower than 100 μg/L, respectively, while it was 50% of women in the 6 districts, to be specific, 88.3%(91/103) in Nangqian, 83.8% (62/74) in Zaduo and 70.7%(118/167) in Zhiduo Counties respectively. The median of urinary iodine in women who were not lactating and not pregnant was only 88.6 μg/L, of whom 53.9% (763/1415) lower than 100 μg/L. Conclusions The women of reproductive age in high risk region of IDD are deficient of iodine in Qinghai Province.

Objective To explore the current prevalence of human echinococcosis in Qinghai Province and to lay the basis for establishing the preventing and controlling strategies.Methods Clustered random sampling was performed in selected survey spots.The enzyme-linked immunosorbent assay(ELISA)and ultrasound techniques were used for detecting human echinococcosis.Results 95 out of 5274 hydatid cases were found from 6 counties of Qinghai Province,with a prevalence of 1.80%.The immunological postitive rates examined by ELISA were 12.01%(198/1649)and 16.37%(383/2340)in male and female,respectively.The positive rate in female was significantly higher than that in male(χ2=14.78,P＜0.01).The infection and prevalence 1evels were generally increased among Tibetan[18.54%(446/2405),2.54%(78/3070)],herders[24.97%(239/957),4.78%(50/1046)]and people aged 60～＜70 years old[15.8l%(34/215),6.52%(18/276)],and were higher in Gonghe County[24.44%(240/982),3.95%(41/1037)]and Yushu County[20.59%(161/782),2.99%(32/1070)].Conclusions Echinococcosis was found in any surveyed area in Qinghai Province.The echinococcosis was severe in the pastoral areas such as the south plateau of Qinghai and places around Qinghai-lake. It is suggested that a strengthened control program should be conducted in the pastoral areas in Qinghai Province,targeting at females,Tibetan and herders people.

Objective To systemically evaluate the different on the incidence of cardiovascular events of platelet aggregation inhibitors ticagrelor and clopidogrel for acute coronary syndrome (ACS),so provide cardiovascular event reference for the selection ofACS platelet inhibitors.Methods Articles were collected according to the inclusion criteria from the database CNKI,Chongqing VIP,Taylor & Francis Open Access Journals,Wanfang,Cochrane Library,SinoMed,EMbase and PubMed from Jan.2000 to May 2017.Review Manager 5.3 was used for data analysis to get the odds ratio (OR) as final effect value.Publication bias of the literatures and the sensitivity of the study were also analyzed with the software.Results A total of 12 articles involving 86 849 patients were included,i.e.,8 random controlled trials,2 case control studies and 2 cohort studies.Quality assessment with Cochrane handbook for systematic reviews shows that,most studies gave low risks in 7 bias aspects.Jadad score assessment was employed in 8 random controlled trials,with 4 studies getting 3 points,3 getting 4 points and 1 getting 5 points,implying the significant quality of the included studies.Meta-analysis showed that compared with clopidogrel,significantly lower cardiovascular mortality (OR=0.80,95％CI:0.72-0.89,P＜0.01) and incidence of myocardial infarction (OR=0.78,95％CI:0.61-0.99,P＜0.05)were with ticagrelor.Conclusion Compared to clopidogrel,ticagrelor may lead to lower cardiovascular mortality and incidence of myocardial infarction in treatment of ACS.

BACKGROUND: Previous Caucasian studies have described venous thromboembolism in pregnancy; however, little is known about its incidence during pregnancy and early postpartum period in the Chinese population. We investigated the risk of venous thromboembolism in a “real-world” cohort of pregnant Chinese women with no prior history of venous thromboembolism. METHODS: In this observational study, 15,325 pregnancies were identified in 14,162 Chinese women at Queen Mary Hospital, Hong Kong between January 2004 and September 2016. Demographic data, obstetric information, and laboratory and imaging data were retrieved and reviewed. RESULTS: The mean age at pregnancy was 32.4±5.3 years, and the median age was 33 years (interquartile range, 29–36 yr). Pre-existing or newly diagnosed diabetes mellitus was present in 627 women (4.1%); 359 (0.7%) women had pre-existing or newly detected hypertension. There was a small number of women with pre-existing heart disease and/or rheumatic conditions. Most deliveries (86.0%) were normal vaginal; the remaining were Cesarean section 2,146 (14.0%). The incidence of venous thromboembolism was 0.4 per 1,000 pregnancies, of which 83.3% were deep vein thrombosis and 16.7% were pulmonary embolism. In contrast to previous studies, 66.7% of venous thrombosis occurred in the first trimester. CONCLUSION: Chinese women had a substantially lower risk of venous thromboembolism during pregnancy and the postpartum period compared to that of Caucasians. The occurrence of pregnancy-related venous thromboembolism was largely confined to the early pregnancy period, probably related to the adoption of thromboprophylaxis, a lower rate of Cesarean section, and early mobilization.
Asian Continental Ancestry Group ; Cesarean Section ; Cohort Studies ; Diabetes Mellitus ; Early Ambulation ; Female ; Heart Diseases ; Hong Kong ; Humans ; Hypertension ; Incidence ; Observational Study ; Postpartum Period ; Pregnancy ; Pregnancy Trimester, First ; Pregnant Women ; Pulmonary Embolism ; Venous Thromboembolism ; Venous Thrombosis