Objective The aim of this study is to investigate the role of angiotensin-converting enzyme (ACE)gene susceptibility to systemic lupus erythematosus(SLE)by familial studies.Methods PCR-based re- striction fragment length polymorphism(RFLP)was applied to genotype single nucleotide polymorphism(SNP) G261T of the ACE gene.A total of 119 patients with SLE from 119 families were recruited.In addition,316 family members of these patients were also genotyped.A family-based association study was carried out to ex- plore the association between gene polymorphism and SLE.We studied the SNP encoding non-synonymous substitution in the ACE gene with respect to genetic susceptibility to SLE.Results Among 119 SLE patients. the frequency of ACEG261TG,T alleles was 44.8%.55.2% respectively,the frequency of ACEG261T GG,GT and TT genotypes was 13.9%,62.0%,24.1% respectively,Univariate(single-marker)family-based association test(FBAT)demonstrated that variant alleles at the SNP,rs4303,exon 5 of ACE gene were significantly asso- ciated with genetic susceptibility to SLE in Additive Model(Z=2.877,P=0.004),Dominant Model(Z=2.557, P=0.011).Recessive Model(Z=2.202,P=0.028).Transmission-disequilibrium test(TDT)and sib transmission -disequilibrium test(STDT)showed an excess of the allele of T from heterozygous parents to affected offspring or higher frequency of the allele of T in the patients than their normal siblings(X~2=11.66,P=0.001).Conclu- sion Our findings suggest that the ACE gene may he the susceptible gene to SLE in Chinese population,and the individuals carrying ACE-261T allele is significantly associated with susceptibility to SLE.

Objective To develop a method for the simultaneous determination of 15mycotoxins in peanuts by ultra high performance liquid chromatography-tandem mass spectrometry with QuEChERS EMR-Lipid approach and stable isotope dilution. Methods The samples were extracted by 2% formic acid acetonitrile-water (50 : 50, V/V) and then purified with QuEChERS EMR-Lipid approach.The mycotoxins were fully separated on a pentafluorophenyl column under a gradient elution with methonal-0.01%formic acid aqueous solution.The mycotoxins were analyzed by UPLC-MS/MS with multiple reaction monitoring (MRM) mode and quantified by isotope internal standard method. Results Fifteen mycotoxins had good linear relationship in the certain correlation ranges with the correlation coefficients all above 0.995 and the detection limits were 0.1－10 μg/kg.The mean recoveries ranged from 81.2% to 115.3% with RSD (n=6) varying from 2.1% to 10.7%. Conclusion The method is simple, highly sensitive, practical, and proves to be suitable for quantitative analysis of 15 mycotoxins in peanuts.

BACKGROUND: Periprosthetic infection after total knee arthroplasty (TKA) has become the most serious complication. However, there is still a lack of clinical study on the distribution of pathogenic bacteria. Therefore, understanding the distribution characteristics of the main pathogenic bacteria is critical for preventing and treating OBJECTIVE: To analyze the bacteriological characteristics in the patients with periprosthetic joint infection following TKA, so as to provide reference for early prevention and treatment. METHODS: CNKI, VIP, WanFang and PubMed databases were retrieved for the literature concerning periprosthetic infection following TKA published before 2016. The incidence of periprosthetic joint infection after TKA was statistically analyzed. RESULTS AND CONCLUSION: (1) 103 articles were included, involving 1 399 patients. (2) The main pathogenic bacteria were Staphylococcus aureus,coagulase negative Staphylococcus aureus,Staphylococcus epidermidis,Escherichia coli, Streptococcus and Enterococcus.There is no significant difference in the distribution of bacteria at home and abroad. Treatment strategies are divided into conservative and surgical treatments. (3) The key for successfully preventing and treating periprosthetic infection after TKA lies in the multiple disciplinary team collaboration, understanding the distribution of bacteria, early diagnosis and active preventive measurements, as well as rational treatment strategies.

BACKGROUND: Unicompartment knee arthroplasty (UKA) is gradually applied in the treatment of knee osteoarthritis, and the management of perioperative blood loss is a hot spot in clinical research. It is very important to control perioperative blood loss and changes in hemoglobin level for postoperative rapid recovery. OBJECTIVE: To investigate the changes in the blood-related indexes during the management of perioperative blood loss in UKA, so as to provide technical reference and data reference for clinical application. METHODS: Clinical data 70 patients undergoing UKA at the Department of Bone and Joint of Guangdong Provincial Hospital of Chinese Medicine from January to December 2015 were analyzed retrospectively, and received the management of perioperative blood loss. The operation time, intraoperative blood loss, postoperative drainage volume, total blood loss and rate of blood transfusion were recorded; the preoperative hemoglobin, albumin, coagulation indexes, D-dimer, erythrocyte sedimentation rate and C-reactive protein were investigated. The effect of operation on the postoperative blood loss and drainage volume was analyzed. RESULTS AND CONCLUSION: (1) The operation time was (89.36±19.89) minutes, intraoperative blood loss was (39.71±23.64) mL, postoperative drainage volume was (56.21±34.21) mL, and rate of autologous blood transfusion was 0. (2) The operation time exerted no effect on the intraoperative blood loss (P=0.685 7), but affected on the postoperative drainage volume (P=0.021 6). (3) The total postoperative blood loss was little, and the blood loss did not differ significantly at 3 hours, 1, 3 and 7 days postoperatively (P > 0.05). (4) There was a slight decline in hemoglobin on days 1-3 after surgery, and then returned slowly; the erythrocyte sedimentation rate and C-reactive protein increased rapidly within 1 day after surgery and declined within 1-3 days; the D-dimer rapidly increased on day 1 after surgery, then rapidly decreased on days 1-3, and then slowly increased on days 3-7; the plasma total protein and albumin were stable and fluctuated in the normal range within 1-3 days. (5) These results suggest that the UKA had short operation time, few total blood loss and slight fluctuation, and the blood-related indexes exhibit different fluctuations. Moreover, the preoperative management of blood loss can reduce the total blood loss and rate of blood transfusion..

OBJECTIVETo evaluate the association of gr/gr deletion in the AZFc region of Y chromosome with idiopathic male infertility using Meta-analysis.

METHODSAll relevant case-control studies addressing the relationship between gr/gr deletion and idiopathic male infertility were identified from PubMed, VIP and CNKI (from January 2003 to August 2010). Statistical analyses were performed with the RevMan4. 2 software.

RESULTSTwenty eligible articles were selected in this study, including 5 246 cases of idiopathic infertility and 4 380 controls. The integrated data from the 20 studies revealed a significantly higher frequency of gr/gr deletion in the patients than in the controls, with an odds ratio (OR) of 1.63 (95% CI: 1.23 -2.44) (P = 0.002). However, when the Meta-analysis was limited to 16 studies with stricter case and control selection criteria, the overall OR increased to 1.84 (95% CI: 1.47 - 2.29) (P < 0.000 01). Thirteen studies showed that oligozoospermia patients had a significantly higher frequency of gr/gr deletion than controls (OR = 2.12, 95% CI: 1.61 - 2.80) (P < 0.000 01). Eight studies showed a significant association between the gr/gr deletion subtype without DAZ1/DAZ2 gene copies and spermatogenic impairment (OR = 1.83, 95% CI: 1.31 - 2.55) (P = 0.000 4), but no statistically significant differences were found in the frequency distribution of the gr/gr deletion subtype missing DAZ3/DAZ4 gene copies between the patients and controls (OR = 1.43, 95% CI: 0.97 -2.11) (P = 0.07).

CONCLUSIONThe present data suggest that gr/gr deletion may be one of the risk factors of male infertility.

Chromosome Deletion ; Chromosomes, Human, Y ; Humans ; Infertility, Male ; genetics ; Male

Objective To study the CT perfusion imaging features of pancreas under liver cirrhosis.Methods 191 cases including 48 normal controls(group A)and 143 patients with liver cirrhosis(group B)were randomly collected according to the inclusion and exclusion criteria.The scope of pancreatic perfusion imaging scan was determined based on conventional plain CT scan of middle and upper abdomen.All patients were injected with contrast agent at the antecubital vein tunnel group and then with normal saline at the same rate.The original perfusion images were transmitted to the workstation and were analyzed by the pancreatic perfusion software package,and the perfusion parameters were recorded for statistical analysis.Results (1)There were statistical differences in pancreatic perfusion parameter values,namely blood flow(BF),blood volume(BV)and mean transit time(MTT),between group A and group B(P<0.05).BF and BV of group B were lower than those of group A but MTT was higher than that of group A,and there was no statistical difference in permeability surface(PS)(P>0.05).(2)For group B,each pancreas part(head,body and tail)had no statistical difference in perfusion parameter values,namely BF,BV,PS and MTT(P>0.05).(3)For group B which was divided into three groups according to Child-Pugh,there were statistical differences in parameter values BF and BV(P<0.05)among the three groups and no statistical differences in BF and BV among any two of the groups(P<0.05);there were no statistical differences in PS and MTT among the three groups.(4)In group B,there was a statistical difference in BF between the subgroup with collateral circulation and the one without collateral circulation(P<0.05),the subgroup with collateral circulation showed lower BF than that of the subgroup without collateral circulation and there were no statistical differences in BV,PS and MTT(P>0.05).Conclusion Liver cirrhosis can result in microcirculation disturbance of pancreas,the change in microcirculation varies depending on the degree of liver cirrhosis, and CT perfusion imaging is helpful to the evaluation of pancreatic microcirculation in the state of liver cirrhosis.

Objective To explore the elastic lamina degradation and the collagen remodeling of aortic artery as well as oxides stress and inflammation of the apolipoprotein ( Apo E) deficient mice with or without experimental hypertension.Methods Eighty male Apo E deficient mice were fed with high-fat diet beginning at six weeks of age.At 8-week old,they were randomly divided into hypertension group and control group (n =40 each ),the mice in hypertension group were subjected the suprarenal aortic constriction operation and then randomly divided into two subgroups:15 weeks age and 30 weeks age groups.At the end of experiment,the vascular elastic lamina degradation and the content of collagen were determined by morphological method,plasma ICAM-1 level was measured by ELISA,and the rennin activity measured by radioimmunoassay,the superoxide anion detected by fluorescence,the MOMA-2 observed by immunofluorescence in all animals.mRNA expression of NF-κB P65 and MMP9 was detected by real-time PCR.Result In 15-week old group,the elastic lamina degradation Grade Ⅱ and the intima-media thickness in the hypertension group were significantly higher than in the control group [ ( 5.4 ± 3.3 ) ％ vs.(8.9±2.5)％,P＜0.05:(98.66 ± 18.90)μm vs.(70.08±11.71)μm,P＜0.05].In 30-week old group,the elastic lamina degradation Grade Ⅲ,the Ⅲ type of collagen and the intima-media thickness were aiso significantly higher than in the control group [ ( 15.2 ±3.7)％ vs.(8.1 ±3.3)％,P ＜0.01 ; (23.00 ±7.73)％ vs.(11.00±3.82)％,P＜0.05:(147.31 ±22.60)μm vs.(i03.98 ± 17.21)μm,P＜0.01].The level of ICAM-1 in hypertension group was significantly higher than that of control group in both 15-week old and in 30-week old mice [ ( 46.3 ± 3.7 ) μg/ml vs.( 40.6 ± 5.7 ) μg/ml,P ＜ 0.05 ; ( 56.0 ± 3.1 )μg/ml vs.(45.2 ± 2.8 ) μg/ml,P ＜ 0.05 ].The superoxide anion,the MOMA-2,mRNA expression of NF-κB P65 and MMP9 in the hypertension group were significantly higher than in the control group in both 15-week old and in the 30-week old mice.The increase in hypertension group was more pronounced in the 30-week old mice than in the 15-week old mice.Conclusion The elastic lamina degradation and the collagen remodeling of aortic artery as well as oxides stress and inflammation are more significant in the Apo E deficient mice with hypertension than in control Apo E deficient mice.

Serum levels of soluble MHC class I-related chain A (sMICA) are related with the prognosis of various types of cancer; however, few studies on the prognostic value of sMICA in hepatocellular carcinoma (HCC) have been reported. In this study, we retrospectively investigated the relationship between sMICA levels and clinical features of advanced HCC, and we assessed the prognostic value of sMICA in advanced HCC. Furthermore, the relationship of serum sMICA levels and natural killer group 2, member D (NKG2D) expression on natural killer (NK) cells was also evaluated. We detected sMICA levels in the serum of 60 advanced HCC patients using enzyme-linked immunosorbent assay (ELISA) and measured expression levels of NKG2D on NK cells using flow cytometry. We found that serum sMICA levels in HCC patients were in the range of 0.10-6.21 ng/mL. Chi-square analyses showed that sMICA level was significantly related with only tumor size. Survival analysis showed that a high sMICA level was significantly related with poor prognosis among HCC patients. Multivariate analyses indicated that sMICA was an independent prognostic factor. In addition, the levels of CD56+NKG2D+ NK cells were within the range of 11.2%-55.4%, and correlation analyses indicated that sMICA level was negatively correlated with the level of NKG2D+ NK cells. Our results suggest that serum sMICA levels may be an independent prognostic factor for advanced HCC.
Adult ; Carcinoma, Hepatocellular ; blood ; immunology ; pathology ; Female ; Histocompatibility Antigens Class I ; blood ; Humans ; Killer Cells, Natural ; immunology ; metabolism ; Liver Neoplasms ; blood ; immunology ; pathology ; Male ; Middle Aged ; Multivariate Analysis ; NK Cell Lectin-Like Receptor Subfamily K ; metabolism ; Neoplasm Staging ; Retrospective Studies ; Survival Rate ; Tumor Burden

OBJECTIVETo study the chemical constituents and the antibacterial activity from n-butanol extract of Sarcandra glabra.

METHODThe compounds were isolated by Diaion HP-20, Sephadex LH-20, MCI CHP-20 and silica gel column chromatographic methods. Their structures were identified on the basis of physicochemical and spectroscopic analysis. The antibacterial effect of the compounds were measured against Staphylococcus aureus by filterpaper slice method, finally the antibacterial ring in each group was recorded after 24 hours.

RESULTSeven constituents were isolated and elucidated as 5, 7, 3', 4'-tetrahydroxy-6-C-beta-D-glucopyranosylflavanone (1), kaempferol-3-O-beta-D-glucuronide (2), fraxidin (3), isofraxidin (4), isofraxidin-7-O-beta-D-glucopyranoside (5), kaempferol (6), pinostrobin (7). Diameters (in mm) of antibacterial ring in the compounds 2, 5, 6 were orderly recorded as follows: 14.67 +/- 0.08, 11.14 +/- 1.06, 8.26 +/- 1.26 and the compound 4 is not effective.

CONCLUSIONCompounds 1-3 and 5 were isolated from S. glabra for the first time.

Anti-Bacterial Agents ; chemistry ; isolation & purification ; pharmacology ; Butanols ; chemistry ; Drugs, Chinese Herbal ; chemistry ; isolation & purification ; pharmacology ; Magnetic Resonance Spectroscopy ; Magnoliopsida ; chemistry ; Staphylococcus aureus ; drug effects

Objective To investigate the clinical effect of endoscopic treatment of carpal tunnel syndrome (CTS) with subsynovial hyperplasia. Methods 37 cases (total 41 wrists) of CTS with subsynovial hyperplasia who accepted endoscopic treatment in our hospital were retrospectively analysised, all the transverse ligament of wrist were cutted off under endoscope and the hyperplastic subsynovial membrane arounding the superficial flexor tendon of finger. The changes of clinical symptoms and signs before and after operation were compared. Results According to Kelly classification, the overall excellent and good rate was 95.12%. After operation, the feel of numb and pain during night disappeared in all patients, the positive rate of Tinel and Phalen sign was both reduced to 2.44% (P < 0.05), and the mean value of two-point discrimination was reduced to (3.5 ± 0.9) mm. No serious complication occurred during treatment. Conclusion For the patients of CTS with subsynovial hyperplasia, to cut the transverse ligament tendon under endoscope and remove the subsynovial around the flexor tendon at the same time is a new and feasible surgical procedure with notable curative effect, which deserves clinical popularization.