1.Determination of Low-concentration Clenbuterol in Edible Meat Using High Performance Liquid Chromatography-tandem Mass Spectrometry
Zhanliang WANG ; Jianli ZHANG ; Yu ZHAO ; Yinong ZHANG
Chinese Journal of Sports Medicine 2017;36(5):429-433
Objective To determine low-concentration clenbuterol in edible meat based on the solidphase extraction coupled with high performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS).Method The homogenated sample was acidized to remove proteins,and purified using the liquid-liquid extraction and MCX Oasis solid prepared extraction column,then further treated with gradient elution with the mobile phase of ammonium formate (10 mmol/L and pH 3.5) and acetonitrile.The clenbuterol was completely separated on Eclipse C18 (1.8 μm,4.6×100 mm) column and detected in multiple reaction monitoring (MRM) mode.Results A good linearity was achieved for clenbuterol in the arrange of 0.01~0.2 μg/kg based on the internal standard calibration of D9-clenbuterol,with the linearity correlation coefficient greater than 0.99 and the detection limit of 0.005 μg/kg.The relative recovery of target compounds spiked in blank sample at three levels ranging from 78.8 to 114.8%,with the relative standard deviations less than 10%.Conclusion The method in this research is simple,rapid,reliable and suitable to confirm low-concentration clenbuterol in edible meat.
2.Comparison of tensionfree herniorrhaphy with conventional herniorrhaphy for inguinal hernia
Jiye LI ; Qun DENG ; Xinkui ZHANG ; Tao LI ; Shibin WANG ; Huabo JIAO ; Zhanliang LI
Chinese Journal of General Surgery 2001;0(08):-
ObjectiveTo evaluate the value of tensionfree herniorrhaphy for inguinal hernia. Methods(1)Comparison was made in operating time, early postoperative response, hospitalization time, postoperative complications and recurrence rate between the two herniorrhaphy groups.In tensionfree herniorrhaphy group( n=137),hernias were repaired with polypropylene mesh plug or mesh patch.(2)In conventional herniorrhaphy group (n=98 ) ,hernias were repaired with Bassini operation. Mean Follow up time was 22 month in the 2 groups. Results The operating time, analgesic use, early response and hospitaliz ation time in tensionfree herniorrhaphy group were significantly lower than those in conventional herniorrhaphy group(P
3.Surgical vascular anatomy basis for duodenum-preserving resection of pancreatic head
Deen HAN ; Qingfeng SUN ; Zhanliang HU ; Zhaoyang LU ; Xiangyu ZHONG ; Yulan LI ; Zhidong WANG
Chinese Journal of General Surgery 1993;0(03):-
Objective To study vascular anatomy between the pancreatic head and duodenum,providing anatomy basis for performing surgery of pancreatic head,duodenum and distal common bile duct in surgical practice. Methods Anatomy study was performed in 30 formaldehyde fixed and 10 fresh bodies in reference to blood supply to duodenum,the distal common bile and Vater ampulla. Results The anterior and posterior pancreaticoduodenal arterial arcade gives off branches to descending and horizontal portion of the duodenum. The posterior superior pancreaticoduodenal artery goes to distal common bile duct. The papilla artery arising from the posterior superior pancreaticoduodenal artery goes to Vater ampulla. Conclusions The pancreaticoduodenal anterior and posterior arterial arcades are main arteries that give off branches to the descending and horizontal portion of the duodenum,distal common bile duct and the Vater ampulla,hence should be carefully protected in duodenum-preserving resection of the pancreatic head.
4.Correlation between IQQA(R)-Liver system in planning liver resection with the actual operation
Zhanliang SU ; Qian JI ; Hao WANG ; Shuai HAN ; Jing YU ; Wen SHEN
Chinese Journal of Hepatobiliary Surgery 2014;20(4):294-298
Objective To correlate between the IQQA(R)-Liver system in planning liver resection and the actual operation performed by surgeons.Methods The data on 65 patients were retrospectively studied.Their preoperative enhanced CT images were analyzed by the IQQA(R)-Liver system to determine the operative plan (Group Q) including the operative technique,the major vessels which required to be transected and the virtual liver resection volume.The above results and the corresponding data collected from the actual operation (Group S) were statistically analyzed to find out whether there was any correlation between them,thus determining the clinical significance of the IQQA(R)-Liver system in preoperative evaluation.Results Group Q and Group S had good correlation in the operative techniques (O) and in the major vessels that required to be transected (A) (uO =0.835,uA =0.893) with no statistical difference between the 2 groups (PO =0.494,PA =0.331).The virtual liver resection volume was 633.96 ± 512.06 (78.30 ~2 559.38)cm3.Conclusion Preoperative evaluation by the IQQA(R)-Liver system had significance in planning partial hepatectomy.
5.Effects of Shenfu Injection on the Damage of Kidney with Acute Pan-creatitis in Rats
Yunhai CHU ; Yi WANG ; Zhanliang HU
China Modern Doctor 2009;47(18):41-42,45,封3
Objective To investigate the protective effects of ShenFu injection on kidney of experimental acute pancreatitis in mrs. Methods Twenty and one Wister rats were randomized into the sham-operated group,AP group and Shenfu group. The plasma level of MDA,MPO,SOD,TNF-α and the kidney level of MDA、ON、SOD and historical scores was determined. Results The values of plasma SOD、MDA、MPO、TNF-α and the kidney of MDA、ON and historical scores in Shenfu-gronp were higher than that in the sham-operated group but lower than that in AP group. The values of SOD of plasma and kidney in Shenfu group is higher than that in AP but lower than that in the sharm-operated group. Coneluion Shenfu injection can protect the early injure of kidney of severe acute panereatitis,which mechanism may be to improve the kidney microcirculation,to reduce the production of TNF-α,to decrease the inflammation of plasma and kidney and to decrease the injure of oxygen free radicals.
6.Clinicopathological Characteristics and Prognosis Analysis of 39 Patients with Pulmonary Sarcomatoid Carcinoma
CHEN CEN ; REN ZHANLIANG ; DONG YUJIE ; WANG YING ; GAO YUAN ; LI HONGXIA ; ZHANG TONGMEI
Chinese Journal of Lung Cancer 2024;27(7):514-522
Background and objective Pulmonary sarcomatoid carcinoma(PSC)is a rare subtype of non-small cell lung cancer(NSCLC),which is featured by low incidence,high malignancy rate,robust aggressive behavior and inferior prognosis.To date,there is no standardized treatment.The aim of this study is to better understand and accumulate more clini-cal experience of the disease by summarizing the clinicopathological features,diagnosis methods,therapeutic regimen and prognostic factors of PSC.Methods A total of 39 patients with PSC who diagnosed and received treatment in Beijing Chest Hospital from December 2013 to December 2023 were retrospectively recruited,and information including demographic char-acteristics,clinicopathological features,tumor-node-metastasis(TNM)stage,diagnosis method and therapeutic regimen were carefully collected.Meanwhile,follow-up was conducted.Kaplan-Meier method was used to analyze the prognostic factors of the disease.Results The PSC patients in this study ranged in age from 45 to 76 years old,including 35 males and 4 females.There were no specific clinical manifestations of PSC at initial diagnosis.Among the 39 patients,20 underwent surgical resec-tion and 19 received palliative chemoradiation or symptomatic supportive treatment.The 1-year and 5-year survival rates were 61.90%and 35.20%respectively.Univariate analysis indicated that family history of carcinoma,primary tumor site,TNM stage,lymph node metastasis,distant metastasis,whether or not received surgical resection,surgical method,treatment regimens,tumor tissue programmed cell death ligand 1(PD-L1)expression>1%and mesenchymal-epithelial transition factor(MET)pathway abnormalities were correlated with the overall survival(OS)of patients(P<0.05).In the subsequent multivariate analysis,lymph node metastasis emerged as the only independent prognosticator in predicting inferior OS(P=0.037).Conclu-sion PSC is rarely seen in clinical practice and commonly occurs in elder men with smoking history.Tumor tissue PD-L1 ex-pression>1%and MET abnormalities may predict inferior prognosis of PSC and lymph node metastasis was determined as the independent prognosticator of PSC.Surgical resection along with adjuvant medical treatment is the cornerstone for early and locally advanced patients,and the clinical utility of molecular targeting therapy and immunotherapy in PSC needs to be further investigated.
7.Cefoperazone/sulbactam in Treatment of Biliary Tract Infections:A Prospective Multicenter Clinical Trial
Zhanliang LI ; Tonglin ZHANG ; Zhi XU ; Lei YANG ; Jiafeng LIU ; Lijian LIANG ; Jiaming LAI ; Ping ZHANG ; Chenghong PENG ; Hao CHEN ; Zhiwei QUAN ; Shenglai ZHANG ; Tingbo LIANG ; Weilin WANG ; Feizhao JIANG ; Zhiwei ZHANG ; Bixiang ZHANG ; Naiqiang CUI ; Qiang FU ; Qiang LI ; Min XIE
Chinese Journal of Nosocomiology 1994;0(04):-
OBJECTIVE To evaluate the safety and clinical efficacy of cefoperazone/sulbactam in the treatment of biliary tract infections.METHODS In this prospective multicenter study,159 hospitalized patients with biliary tract infections received cefoperazone/sulbactam,and the clinical and bacteriological efficacy as well as the side effects were evaluated.RESULTS The clinical effective rate of cefoperazone/sulbactam in the treatment of biliary tract infections was 86.78%.After treatment,the body temperature reduced to normal rapidly,the average time of defervescence was 3.09?1.81 days.Pathogen eradication rate was 85.71%.No adverse reactions were reported during the study period.CONCLUSIONS Cefoperazone/sulbactam can be used as one of antibiotics of choice in the initial empirical therapy for biliary tract infections.
8.A survey on the knowledge of Helicobacter pylori infection diagnosis and treatment among medical staff from general hospitals in Hainan Province
Hui ZHOU ; Guoning CHEN ; Yang GUO ; Yan TAN ; Cheng LAN ; Donghan WU ; Zhanliang MA ; Peng CHENG ; Cuiyi MO ; Ming WANG ; Peiyuan LI ; Ya LIN ; Yongqiang YANG ; Junling HAN ; Zhai CHEN ; Changling LIN ; Zhaona WU ; Shengxiong CHEN ; Zhengyi CHEN ; Xiaoxi HUANG
Chinese Journal of Digestion 2024;44(4):223-233
Objective:To investigate the knowledge of Sixth Chinese national consensus report on the management of Helicobacter pylori infection ( treatment excluded) (hereinafter referred to as sixth national consensus) and 2022 Chinese national clinical practice guideline on Helicobacter pylori eradication treatment (hereinafter referred to as the guideline)among medical staff from general hospitals in Hainan. Methods:From February 20 to May 7, 2023, a questionnaire survey on the diagnosis and treatment of Helicobacter pylori ( H. pylori) infection was conducted among 1 463 medical staff from 15 general hospitals in Hainan Province. The questionnaire was drawn up according to the sixth national consensus and the guideline, covering knowledge of 6 sections, induding H. pylori related diseases, detection of H. pylori, eradication, prevention and influence factors of eradication of H. pylori, etc. Chi-square test was used for statistical analysis. Results:A total of 1 463 valid questionnaires were collected with the effective responsive rate of 100.00%.The 1 463 subjects included 225 gastroenterologists and 1 238 other medical staff(including 503 physicians from other departments, 264 surgeons and 471 medical technologists and pharmacists). About 78.67%(177/225)of gastroenterologists agreed that the overall infection rate of H. pylori in China was more than 20%, the awareness rate was higher than that of other medical staff (physicians from other departments 65.41%(329/503), surgeons 61.74%(163/264), medical technologists and pharmacists 60.30%(284/471); the following datas were sorted by this position), and the difference was statistically significant ( χ2=30.97, P<0.001). About 51.11%(115/225) of gastroenterologists considered that H. pylori serological antibody test could not be used as a diagnostic method for current infection, the awareness rate was higher than that of other medical staff(22.07%(111/503), 14.02%(37/264), 12.31%(58/471)), and the difference was statistically significant( χ2 =152.66, P<0.001). Proton pump inhibitor and potassium-competitive acid blocker should be discontinued for 2 weeks, and antibiotics and bismuth should be discontinued for 4 weeks before urea breath test, and the awareness rates of gastroenterologists were higher than those of other medical staff (38.67%(87/225) vs. 23.26%(117/503), 19.70%(52/264), 18.47%(87/471); 60.89%(137/225) vs. 26.64%(134/503), 25.76%(68/264), 23.78%(112/471)), and the differences were statistically significant ( χ2 =133.70 and 165.51, both P<0.001). For refractory H. pylori infection, 98.67%(222/225)of gastroenterologists agreed with the individualized diagnosis and treatment of H. pylori infection should be guided by bacterial culture, antibiotic susceptibility test or drug resistance gene test, and the awareness rate was higher than that of other medical staff (91.85%(462/503), 93.56%(247/264), 93.21%(439/471)), and the difference was statistically significant( χ2=20.55, P=0.002). About 70.67% (159/225) of gastroenterologists recommended a bismuth containing quadruple regimen, 80.44% (181/225) supported a 10 to 14 day H. pylori eradication course, and the awareness rates were higher than other medical staff (46.92%(236/503), 33.33%(88/264), 32.91%(155/471); 67.20%(338/503), 59.09%(156/264), 53.93%(254/471)), and the differences were statistically significant ( χ2=111.25 and 59.99, both P<0.001). The understanding rates of the sixth national consensus and the guideline in gastroenterologists was 85.33% (192/225), which was higher than that of other medical staff (64.21%(323/503), 66.67%(176/264), 57.96%(273/471)), and the difference was statistically significant ( χ2=85.47, P<0.001). Conclusions:Gastroenterologists from general hospitals in Hainan Province have a better understanding of the sixth national consensus and the guideline than other medical staff. However, there is still a lack of deep understanding of the sixth national consensus and the guideline, and it is necessary to further strengthen the learning and application of the sixth national consensus and the guideline.