Composition of the polysaccharide from Bupleurum scorzonerifolium Willd. was studiedby high resolution capillary gas chromatography after hydrolysis and followed by acetylation and esterifica-tion of the hydrolysate. The results showed that it is composed of arabinose, ribose, D-xylose, D-man-nose, D-glucose and D-galactose, with a molar ratio of 0. 106 : 2. 652 : 4. 070: 0. 519 : 0. 930 : 2. 518.

Objective To investigate the effect of secondary transurethral electrocision for recurrent superficial bladder cancer.Methods One hundred and twenty patients with recurrent superficial bladder cancer were divided into experiment group and control group by random mechanical sampling method with 60 cases of each.Experiment group underwent secondary transurethral electrocision at 4 weeks after initial transurethral electrocision and received mitomycin bladder perfusion chemotherapy,control group patients underwent initial transurethral electrocision and received mitomycin bladder perfusion chemotherapy.The two groups' follow-up cystoscopy at 3-month intervals,the follow-up time was 6-34 (18.6 ± 6.5) months,the recurrence was compared between each other.Results Within the follow-up period,the recurrence rate in experiment group was significantly lower than that in control group [21.7％(13/60) vs.63.3％(38/60),P＜0.01].Of all the recurrent patients,high grade rumor (G2 and G3 grade) was mainly,the recurrence rate of high grade tumor in experiment group was significantly lower than that in control group [26.2％ (11/42) vs.70.0％(35/50),P ＜ 0.01].Conclusions Secondary transurethral electrocision can reduce the recurrence rate of superficial bladder cancer (especially for the high grade tumor),it can exactly make the classification of malignant tumors and find residual tumor.So it is valuable in the clinical treatment.

Objective To explore the brain function changes in cirrhotic patients with normal blood ammonia and high in direct bilirubin with regional homogeneity (ReHo) of resting-state functional MRI (rs-fMRI).Methods Fifty-three cirrhotic patients with normal blood ammonia and high indirect bilirubin (cirrhosis group) and 60 healthy volunteers (control group) performed rs-fMRI scans.ReHo values in different brain areas of the two groups were acquired and compared.The correlation between the ReHo values of different brain regions in both groups and the indirect bilirubin concentrations was analyzed.Results Compared with control group,cirrhosis group showed that ReHo values increased in left dorsal-lateral frontal gyrus,left orbital superior frontal gyrus,left top edge of angular gyrus,left precentral gyrus,right caudate,right putamen,right insula,right olfactory cortex (all P＜0.001),and decreased in left superior occipital gyrus,left middle occipital gyrus,left cuneus,left orbital inferior frontal gyrus,right paracentral lobule,right precuneus,right middle occipital gyrus,bilateral lingual gyrus and bilateral cerebellum (all P＜0.001).ReHo values in right insula and right putamen in cirrhotic patients positively correlated with indirect bilirubin (r=0.32,P=0.021).Conclusion The resting state brain function increases and decreases in some brain regions of cirrhotic patients with normal blood ammonia and high indirect bilirubin.Indirect bilirubin level correlates with function of some brain regions,which has certain effect on brain function of adult.

Objective To observe the effect of acupuncture, neuromuscular electrical stimulation and swallowing training on acute stroke patients with dysphagia and the incidence of post-stroke pneumonia (PSP). Methods Acute stroke patients with dysphagia were divided into 3 groups. Routine group (n=188) received routine swallowing training. Stimulation group (n=196) received routine swallowing training and neuromuscular electrical stimulation. Acupuncture group (n=112) received routine swallowing training, neuromuscular electrical stimulation, and acupuncture. The incidence of improvment of dysphagia and PSP, and the improvement of National Institutes of Health Stroke Scale (NIHSS) within 3 weeks were compared. They were followed up for 3 months for the incidence of PSP. Results The incidence of improvment of dysphagia was the most in the acupuncture group (P<0.05), while the incidence of PSP was the least (P<0.05). The improvement of NIHSS was the most in the acupuncture group (P<0.05). The incidence of PSP was not significantly different (P>0.05) within 3 months followed up. Conclusion The acupuncture, neuromuscular electrical stimulation and swallowing training combination can improve the swallowing function and decrease the incidence of PSP in stroke patients with dysphagia.

Gastric cancer is a common cancer in digestive system in China. It′s in the forefront of cancer in terms of morbidity and case fatality, posing a great threat to people′s health. With the advent of the era of precision medicine, the treatment of each patient with gastric cancer must follow the principle of individualization. However, individualized treatment is based on the development of biomarkers. Liquid biopsy has been reported to be a biomarker capable of detecting information about tumorigenesis and progression, and has been suggested as a useful tool for personalized treatment. Compared with traditional "tissue biopsy" , liquid biopsy has significant advantages because it is noninvasive and painless, reduces cost and time for diagnosis, and could be used for diagnosis, prognosis, prediction of disease progression, or as a surrogate marker of response to treatment.For this purpose, the author will review the related detection techniques of liquid biopsy and its role in early screening, efficacy evaluation and recurrence monitoring of gastric cancer.

Postoperative complications of colorectal cancer (CRC) are the main cause of postoperative death and seriously affect the quality of life and survival time of patients. The application of a clinical prediction model for postoperative complications of CRC can help promptly identify high-risk patients. Accordingly, reasonable intervention measures can be actively taken to reduce the incidence of postoperative complications of CRC. A scientific basis can also be provided to improve the prognosis of patients. In this work, literature on the risk-factor analysis and prediction-model construction of postoperative complications of CRC at home and abroad in recent years was collected and reviewed. The evaluation content and efficiency of the clinical prediction models in postoperative complications of CRC were summarized. Their advantages and disadvantages were also analyzed. The purpose of this study was to provide a reference for the subsequent optimization of such models and the development of a strong, clinically practical, and universal risk-screening tool for postoperative complications of CRC.

Objective To compare the clinical efficacy and safety between recombinant human parathyroid hormone ( rhPTH) ( 1 -34) and elcatonin in the treatment of postmenopausal women with osteoporosis in China.Methods This 6 month, multicenter, randomized and controlled study enrolled 205 postmenopausal women with osteoporosis.They were randomized to receive either rhPTH (1 -34) 20 μg (200 U) daily or elcatonin 20 U weekly.Lumbar spine (L1-4 ) and femoral neck bone mineral density (BMD) and biochemical markers of bone turnover were measured. In the meantime adverse events were recorded. Results The results showed that both rhPTH ( 1 -34) and elcatonin increased L1-4 BMD significantly at the endpoint of the study, but femoral neck BMD did not change significantly.From baseline to endpoint, BMD of L1-4 and femoral neck in the rhPTH( 1-34) group increased by 5.51% (P <0.01) and 0.65% (P >0.05), but BMD of L1-4 and femoral neck in elcatonin group increased by 1.55% (P <0.05) and 0.11% (P>0.05).Moreover, the rhPTH(1-34) group had better improvement in L1-4 BMD than the elcatonin group at 3, 6 months, but there was no difference of BMD in these two groups with regard to femoral neck.There were greater mean increases of the bone markers in the rhPTH( 1-34) group than those in the elcatonin group at 3, 6 months [serum bone-specific alkaline phosphatase ( BSAP) 36.79% vs 0.31% ; 92.42% vs -0.17% ; the ratio of urine N-telopeptide of type I collagen and creatinine (NTX/Cr) 48.91% vs -5.32% ; 68.82% vs - 10.86%].Both kinds of treatment were well tolerated and there were no differences between the two groups in the rates of adverse events and serious adverse events.Conclusion It is concluded that rhPTH (1 -34) has more positive effects on bone formation than elcatonin as shown by the greater increments of L1-4 BMD and bone formation markers and the less occurrence of adverse events as well as no significant change in hepatic, renal or hemopoietic function.

Objective To investigate the characteristics of serum lipid levels in centenarians in Hainan province.Methods A total of 899 centenarians were enrolled.Fasting venous blood samples were collected,and serum levels of total cholesterol (TC),triglyceride (TG),low-density lipoprotein cholesterol(LDL-C),high-density lipoprotein cholesterol (HDL-C),apolipoprotein A-1 (Apo A1),apolipoprotein B(Apo B) and lipoprotein (a) [Lp (a)] were determined.Characteristics of serum lipid levels in centenarians with different age and gender were analyzed.Results The ratio of male to female in this study was 1 ∶ 4,101 years of age comprised the largest proportion(20.4 ％,183 cases),and the highest age was 109 years old for men and 116 years old for women.People aged 102 years had the highest levels of TC,TG,LDL-C and Apo B,and also had the lowest levels of HDL-C and Apo A1.Serum levels of TC and LDL-C reached the peak at the age of 102 years and showed downward trends year by year.Serum levels of TC,TG,LDL-C,Apo A1 and Apo B were lower in males than in females(P＜0.01),and HDL-C had no significant difference between males and females(P ＞0.05).The detection rates for abnormal serum lipid levels were higher in females than in males(P＜0.01).Serum Lp(a) level was higher in females than in males.Conclusions Serum lipid levels show a peak expression at a certain age in centenarians of Hainan,and the types and ratio of abnormal blood lipids are higher in female centenarians than in male centenarians.