1.EFFECT OF TOTAL ARALOSIDES ON PROSTAGLANDINS AND CYCLIC NUCLEOTIDE
Jun REN ; Jinxuan CHENG ; Zhengang WANG ;
Chinese Pharmacological Bulletin 1987;0(03):-
The total aralosides extracted from Aralia elata (Miq) Seem. were studied in mice ( 50 mg/kg/d for 7 d ) to investigate the pharmacological mechanisms on the molecular level.The results showed that aralosides can obviously stimulate the production of PGE2、PGF2, and cAMP but reduce the cGMP level and nave no effect on histamine release.It is suggested that the changes in the level of cyclic nucleotide might be due to the alternations of PGs, which is now been suspected as the "Second Messenger" . These findings could explain in part the pharmacological activities of aralosides on the molecular level.
2.A PRELIMINARY STUDY ON IMMUNE REGULATION OF AMMONIUN GLYCYRRHIZANATE
Ren ZHANG ; Jinxuan CHENG ; Zhengang WANG
Chinese Pharmacological Bulletin 1986;0(06):-
After mice given Ammoniun Glycyrrhizanate orally, the spleen weight, the number of leukocytes in peripheral circulation and carbon particle cleaning index increased significantly. Rat spleen lymphocytes exposed to 8 x10-7M and 8 x10-10M of Ammoniun Glycyrrhizanate produced levels of PGE that were 1 - 2 -fold greater than that of the control lymphocytes cultured in medium alone. We also found that the levels of PGE2 and cAMP in mice spleen increased significantly after P.O. Ammoninn Glycyrrhizanate, which we suggested might be the mechanisms of immane regulatory functions of Ammoniun Glycyr rhizanate.
3.Association between Q-1, T2 locus allele in ADAM33 gene and chronic obstructive pulmonary disease in Xinjiang Kazak, Han population
Shasha WANG ; Jian GUAN ; Shan WANG ; Fangjuan CHENG ; Xia REN
The Journal of Practical Medicine 2016;32(7):1100-1103
Objective To explore the relationship of the ADAM33 gene Q-1,T2 single nucleotide polymorphism (SNP) and suffering from chronic obstructive pulmonary disease (COPD) in Xinjiang Kazakh and Han population. Methods Peripheral blood samples to extract DNA, and the single nucleotide polymorphisms of Q-1 and T2 in ADAM33 gene were detected by SNaPshot SNP genotyping. Results Case group compared with the control group, frequencies of Q-1 locus genotypes and alleles were significant differences in Kazak (P<0.05). In patient group, there were significant differences in ADAM33 gene Q-1 locus genotypes FEV1% predicted, FEV1/FVC of clinical indicators lung function in Kazak, Han(P < 0.05). Kazak Q-1 locus AA genotype,Han GA genotype than GG genotype were significant difference.Compare Kazak AA genotype,Han GA genotype with GG genotype is more likely to cause COPD in Q-1 locus(P<0.05). In the comparison of the case and control group the two ethnic, there was no significant difference between the frequencies of T2 locus genotypes and the frequencies of Q-1,T2 the alleles (P > 0.05). There were no significant differences in T2 locus genotypes and clinical indicators of lung function FEV1% predicted and FEV1/FVC in patient group (P > 0.05). Conclusion The ADAM33 gene Q-1 locus may be related to the COPD susceptibility in Xinjiang Kazak, Han.
4.Preoperative diagnosis of ovarian tumors using Logistic model
Li CHENG ; Cai CHANG ; Yinghua WANG ; Yuqing ZHOU ; Yunyun REN
Chinese Journal of Ultrasonography 2009;18(7):595-597
Objective To assess the diagnostic value of Logistic model in differentiating between malignant and benign ovarian lesions. Methods Thirty-five indexes of clinical and ultrasound data were recorded in 601 ovarian lesions confirmed by surgical pathology. The Logistic model was developed on a training set( n - 400) and tested on a test set( n = 201). Results Variable selection resulted in a set of 10 variables for the models: personal history of ovarian cancer, maximal diameter of the lesion, maximal diameter of the solid component, multilocular-solid tumor, solid tumor, ascites, flow within papillation, irregular walls, very strong intratumoral blood flow (i. e. color score 4) and acoustic shadows. Test set area under the receiver-operating characteristics curve was 0.963 with a sensitivity 93.9% and a specificity 93. 1 %. Conclusions Logistic model can accurately separate malignant from benign ovarian masses.
5.Clinical effects of pedicled omentum covering the intestinal anastomotic stoma in preventing anastomotic fistula
Gangcheng WANG ; Guangsen HAN ; Yingkun REN ; Yong CHENG
Chinese Journal of Digestive Surgery 2013;(7):508-511
Objective To investigate the clinical effects of pedicled omentum covering the intestinal anastomotic stoma in preventing anastomotic fistula.Methods The clinical data of 133 patients with high risk of intestinal anastomotic stoma who were admitted to the Henan Tumor Hospital from May 2009 to May 2012 were retrospectively analyzed.All patients were divided into the improvement group (69 patients) and the control group (64 patients) according to whether the anastomotic stoma was covered by pedicled omentum.All the operations were done by the surgeons in the same group,and the intestinal reconstruction was done by the equipment produced by the same company.All the patients with intestinal tumors received radical resection.The clinical data of the patients in the 2 groups were reviewed and the therapeutic effects of the 2 approaches were compared.All data were analyzed using the chi-square test.Results Three (4.3%) patients had intestinal fistula in the improvement group,including 1 had small bowel anastomotic fistula,1 had small bowel and colonic anastomotic fistula,1 had colonic anastomotic fistula.Eight (12.5%) patients in the control group had intestinal anastomotic fistula,including 1 had duodenal anastomotic fistula,2 had small bowel anastomotic fistula,2 had small bowel and colonic anastomotic fistula,and 3 had colonic anastomotic fistula.There was a significant difference in the incidence of anastomotic fistula between the 2 groups (x2 =5.483,P < 0.05).The highest body temperatures of the 3 patients in the improvement group were under 38.2 ℃,and the mean white blood cell count was 8.4 × 109/L;no peritonitis was detected; turbid drainage was observed in the peritoneal tube around the anastomotic stoma.The results of computed tomography showed local inflammation.The highest body temperatures of the 8 patients in the control group were above 38.5 ℃,and the mean white blood cell count was 14.4 × 109/L; obvious pressing pain and rebound tenderness were detected; intestinal contents were observed in the peritoneal drainage tube.The 3 patients in the improvement group were cured by symptomatic treatment.Of the 8 patients in the control group,7 received two-stage debridement,and 1 received jejunostomy and 3 received ileostomy.The condition of the 7 patients was recovered after operation,and reversion of the ileum at postoperative month 4.One patient died of multiple organs dysfunction syndrome and systemic inflammatory response syndrome.Conclusion Intestinal anastomotic stoma covered by pedicled omentum could effectively decrease the incidence of anastomotic fistula and alleviate systemic inflammatory response syndrome caused by anastomotic fistula.
6.Effect of Balancing Function on Clinical Characteristics of Children with Attention Deficit Hyperactivity Disorder
jia, CHENG ; yu-feng, WANG ; yuan-chun, REN
Journal of Applied Clinical Pediatrics 2004;0(12):-
0.05).The height and weight of the children with good balancing function were weightier and higher than those of poor function children(Pa
7.Detection of Avanafil and Flibanserin in Health Food by HPLC-MS/MS
Yuanyang WU ; Ren WANG ; Minghao ZHOU ; Qiaoyuan CHENG
Herald of Medicine 2017;36(7):783-785
Objective To develop a method for detection of avanafil and flibanserin adulterated in health food by high performance liquid chromatography-tandem mass spectrometry(HPLC-MS/MS).Methods The separation and analysis were performed on an Agilent Eclipse Plus C18 column(2.1 mm×100 mm,1.8 μm),with a mobile phase of acetonitrile and 0.1%acetic acid(containing 20 mmol·L-1 ammonium acetate)(60:40).Electrospray ionization(ESI) source was applied and operated in positive mode.Multiple reaction monitoring(MRM) mode was used to quantify avanafil and flibanserin.Results The assay linearity of avanafil and flibanserin were confirmed in the range of 2-20 ng·mL-1(r2>0.99).The extraction recoveries varied from 94.6% to 110.0%,and the precision of RSD was <5.0%.The limits of detection were 0.21 and 0.42 μg·kg-1 for avanafil and flibanserin,respectively.Conclusion The method was specific,sensitive and accurate.Therefore,it can be used to detect avanafil and flibanserin which were illegally added in health food.
8.Delicacy management practice of NSFC application process in an affiliated hospital of a medical university
Niannian LI ; Heng WANG ; Jiayun ZHAO ; Ren YE ; Mengming CHENG
Chinese Journal of Medical Science Research Management 2017;30(4):278-281
Objective summarize the delicacy management practices through the NSFC application procedures in a university affiliated hospital,to provide further reference for improvement of the NSFC project approvai ratio.Methods To summarize the management experiences by analyzing the approval number,project category and funds of NCFS from 2006 to 2015.Results The delicacy man agement practices include cultivate scientific research atmosphere by strengthen motivation,initiate application as early as possible,enlarging application number by extensive mobilization,improve applica tion quality by massive training,multi-round updates,tutorial,prevent avoidable errors by cross-over review.Conclusions Delicacy management by scientific research management department during the application process is critical to improve the project approval ratio of NCFS in a hospital.
9.Application of MR Fat Saturation Sequence in Acute Spinal Trauma
Guimei WANG ; Ling LI ; Youhua CHENG ; Rui SUN ; He REN
Chinese Medical Equipment Journal 2003;0(10):-
Objective To further study the value of MR T2WI fat saturation sequence in acute Spinal Trauma. Methods 109 cases of acute Spinal Trauma underwent MR imaging were analysed retrospectively. The detection rate of lesions with bone marrow edema, Vertebral fracture and spinal cord injury was compared in T2WI and FS T2WI. Results FS T2WI could detect more lesions of obscure fracture and bone marrow edema than that in T2WI,and it could accurately show the extent and the feature of anatomic structure in acute injury of bone. Conclusion FS T2WI can improve the diagnostic sensition and accuracy in Spinal Trauma, and it should be used as a routine MR sequence for detecting Spinal Trauma.
10.The effects of transcranial magnetic stimulation on motor function in patients with Parkinson's disease: A meta-analysis
Hai YUAN ; Lu JIN ; Xiaotong WANG ; Huiming REN ; Ying CHENG
Chinese Journal of Physical Medicine and Rehabilitation 2010;32(12):932-934
Objective To explore the effects of transcranial magnetic stimulation (TMS) on motor function in patients with Parkinson's disease (PD) using meta-analysis. Methods Eight comparative studies of the effects of TMS were meta-analyzed. Results The combined studies confirmed a significant difference before and after TMS treatment. Between the experimental and control groups the effect was also highly significant. Conclusion TMS may play an active role in the rehabilitation of motor function for patients with Parkinson's disease.