Objective To investigate the surgical method,safety,and clinical effect of laparoscopic left lateral hepatectomy in the treatment of intrahepatic bile duct stones.Methods A total of 30 patients with intrahepatic bile duct stones who were admitted to our hospital from January 2015 to December 2016 were enrolled,and according to the surgical procedure,these patients were divided into conventional group (15 patients) and laparoscopic group (15 patients).The patients in the conventional group were treated with open left lateral hepatectomy,and those in the laparoscopic group were treated with minimally invasive laparoscopic left lateral hepatectomy.Surgical indices were observed,and postoperative complications and liver function parameters were compared between the two groups.The t-test was used for comparison of normally distributed continuous data,and the Wilcoxon rank sum test was used for comparison of non-normally distributed continuous data.The chi-square test was used for comparison of categorical data.Results The laparoscopic group had significant reductions in the time to passage of gas by anus (1.02 ± 0.51 d vs 1.98 ± 0.36 d,t =5.956,P ＜0.001) and length of postoperative hospital stay (8.83 ±0.81 d vs 11.83 ± 0.42 d,t =5.830,P ＜ 0.001) compared with the conventional group.Compared with the conventional group,the laparoscopic group had a significantly lower alanine aminotransferase level (125.8 ± 91.9 U/L vs 214.1 ± 99.6 U/L,t =2.52,P =0.02) and a significantly higher serum albumin level (33.2 ± 3.7 g/L vs 28.9 ± 4.3 g/L,t =2.94,P =0.01) at 5 days after surgery.Conclusion Compared with conventional open surgery,laparoscopic left lateral hepatectomy has the features of litde trauma,rapid postoperative recovery,and little influence on liver function in the treatment of intrahepatic bile duct stones and has a marked clinical effect.Therefore,it holds promise for clinical application.

Objective To assess the relationship between the serum IgG antibody titer of pregnant women and the hemolytic dis‐ease of newborn(HDN) .Methods Using microcolumn gel coombs card assay method to determine titer of 255 cases of couples an‐tenatal serum IgG antibody and ABO blood group .Results with 195 cases of ABO‐incompatible couples ,the positive rate of abnor‐mal serum IgG antibody(≥64)was 93 .8% .The titer of anti‐A/B IgG :in 12(6 .2% ) cases was <64;in 12(6 .2% )cases was 64;in 60(30 .8% )cases was 128 ;in 39(20% )cases was 256 ;in 45(23 .0% )cases was 512 ;in 27(13 .8% ) cases was 1 024 .There were no statistical differences between IgG anti‐A(B) titers distribution between A/O blood group matching and B/O blood group matching (χ2 =4 .361 ,P=0 .499) ,IgG anti‐A( B) titers was higher in AB/O blood group matching .Conclusion we can take early and effec‐tive prevention ,treatment ,reducing the incidence of HDN by the determination of prenatal serum IgG antibody titers in ABO‐in‐compatible couples ,which is important for the population of eugenics .

BACKGROUND:Superior lower limb mobility is regarded as one of the prerequisites for winning competitions.Wearable resistance training can effectively overcome the deficiency in the transfer efficiency of traditional strength training in enhancing lower limb mobility.Considering that the impact of wearable resistance training based on different body parts on lower limb mobility may have significant differentiated characteristics,it is particularly important to review and summarize the specific application strategies and acute and chronic intervention effects. OBJECTIVE:To comb and analyze acute and chronic intervention effects of wearable resistance training based on different body parts on lower limb mobility,in order to provide insightful and methodological references for optimizing application strategies for lower limb movement ability. METHODS:A literature search was conducted in CNKI,Wanfang,VIP,Web of Science,Medline,SPORTDiscus,and PubMed databases for publications up to October 2023.Chinese and English search terms were"arm,forearm,limb,leg,lower extremity,vest,trunk,resist,weight,load,sprint,agility,change of direction".A total of 60 articles were ultimately included for review after screening the retrieval results. RESULTS AND CONCLUSION:(1)Trunk loading of 6-20%of body mass is suitable for optimizing acceleration in sprinting,while trunk loading of≤6%body mass is suitable for optimizing high-speed running.A trunk load of 5%body mass is applicable for optimizing change-of-direction movement;forearm,calf,or thigh loading often uses 1%or 2%body mass.(2)Trunk loading optimizes the functional performance of the lower limb stretch-shortening cycle by increasing vertical load.This enhances the efficiency of ground reaction force utilization and strengthens the coordinated stability control of the whole body musculature.Forearm loading effectively enhances the driving force of the upper limb swing,improves the propulsive force of the lower limb sprint,and optimizes the efficiency of inter-limb coordination.Calf loading can impose restrictions on the function of the hip joint,thereby leading to localized load stimulation and compensatory functional enhancement in the knee or ankle joint.Thigh loading partially restricts the peak extension angle and speed of the knee joint,creates specific load stimulation at the hip joint,and significantly improves its rotational kinetic energy output.(3)During larger-angle change-of-direction movements,the impact of calf loading is more significant than thigh loading.Thigh loading stimulation helps to enhance power output,while calf loading stimulation aids in improving stability control and directional change.(4)Currently,wearable resistance training has been proven to be an effective way to improve sprint and change-of-direction performance.The methodological strategies to improve sprint performance are relatively mature,but the optimal application scheme to improve change-of-direction performance needs to be further refined and optimized.Further research is recommended to supplement this area.

OBJECTIVETo evaluate the effectiveness of small interfering RNA (siRNA) on inhibiting severe acute respiratory syndrome (SARS)-associated coronavirus replication, and to lay bases for the future clinical application of siRNA for the treatment of viral infectious diseases.

METHODSVero-E6 cells was transfected with siRNA before SARS virus infection, and the effectiveness of siRNA interference was evaluated by observing the cytopathic effect (CPE) on Vero-E6 cells.

RESULTSFive pairs of siRNA showed ability to reduce CPE dose dependently, and two of them had the best effect.

CONCLUSIONsiRNA may be effective in inhibiting SARS-associated coronavirus replication.

Animals ; Cercopithecus aethiops ; RNA, Small Interfering ; pharmacology ; SARS Virus ; drug effects ; Transfection ; Vero Cells ; Virus Replication ; drug effects