1.Performance verification of nucleic acid testing project based on ISO 15189
Xiaoyan HAN ; Maili ZHANG ; Xu FENG ; Miaomiao XU
Chinese Journal of Blood Transfusion 2022;35(1):95-98
【Objective】 To explore the performance verification of NAT and its procedures for HBV DNA, HCV RNA and HIV RNA-1 using PCR-fluorescence via Cobas s201 automatic NAT system and supporting MPX V2.0 reagents that applied in the laboratories of blood stations, in order to satisfy ISO 15189 accreditation requirements and ensure the accuracy of NAT results. 【Methods】 Samples used in external quality assessment(EQA) of year 2020 were taken to verify the concordance, Performance evaluation panel and sensitivity verification panel of Roche second-generation NAT system were used to verify the sensitivity/ specificity and the lower limit of detection, respectively.And HBV DNA, HCV RNA and HIV RNA-1 quality control products were used to verify the anti-interference ability. 【Results】 The concordance rate of 40 EQA, samples was 100%. The sensitivity and specificity of Cobas s201 automatic NAT system and supporting MPX V2.0 reagents in detecting HBV DNA, HCV RNA and HIV RNA-1 were all 100%. The lower detection limit for HBV DNA, HCV RNA and HIV RNA-1 all met the requirements of reagent instructions. The yielding of HBV DNA, HCV RNA and HIV RNA-1 were affected little with hemolysis at 500 mg/dL but interfered seriously as lipemia reached 3 300 mg/dL. 【Conclusion】 The concordance rate, sensitivity, specificity and lower detection limit of the Cobas s201 fully-automatic NAT system and MPX V2.0 reagents by PCR-fluorescence method all met the requirements of reagent instructions. The verification of anti-interference ability demonstrated the requirements of ISO 15189 and the needs of blood station laboratories could be satisfied, and the detection methods and procedures can ensure the accuracy of NAT results.
2.Clicinal analysis of 21cases with thyroid nodule associated with thyroid cancer
Qin ZHANG ; Qiang ZHANG ; Weinan CHEN
Chinese Journal of Primary Medicine and Pharmacy 2015;(8):1170-1172
Objective To analyze the clinical manifestation of thyroid carcinoma in patient with nodular goiter,and explore the effective diagnosis and treatment method.Methods Retrospective analysis was made on patients operated upon for nodular goiter with coexisting diffetentiated thyroid carcinoma.Results Tiny papillary car-cinoma 9 cases,papillary carcinoma 1 1 cases,and follicular carcinoma 1 case.Four Chad cervical lymph node involve-ment,2 cases in the cervical compartment and 2 cases in the central area.We followed up for 10 months to 10 years, all of the patients were survival.Conclusion Early diagnosis can provide scientific basis for surgical treatment.Oper-ation should master the indication and scope,to ensure the satety,impove survival rate.
3.A SCANNING ELECTRON MICROSCOPY OBSERVATION OF CHOROID PLEXUS IN CATS, RABBITS AND RATS
Chuen MA ; Li ZHANG ; Deheng CAI ; Mingxuan ZHANG ; Weinan FANG
Acta Anatomica Sinica 1957;0(04):-
The choroid plexus of the cat, rabbit and rat have been investigated by means of scanning elecron microscopy. The surface appearance of choroid plexus of these animals exhibited pleomorphism. The free surface of epithelial cells are covered with dense microvilli, single long cilium, clusters of cilia, bulbous protrusions and flower-like structure. They are scattered throughout the ventricular surface of the choroid plexus. High magnification scanning electron microscopy reveals that the population of microvilli consist of slender finger-like microvilli and microvilli with the bleb-like protrusion. Flower-like structure is the clusters of microvilli. On the surface of the choroid plexus of these animals, the Kolmer cells were observed. According to the number of processes, the Kolmer cells of cat, rabbit and rat may be divided into four main types. The ultra-architectural organization of choroid plexus of the cat, rabbit and rat is quite similar, but the number of bulbous protrusions in the cat and clusters of cilia in the rat occurs more.
4.Effect of social medical treatment in improving the quality of life for patients with nasopharyngeal carcinoma
Hong JIN ; Jiaoyuan XU ; Weinan CHEN ; Qiang ZHANG ; Lifang DENG ; Biyu LI ; Ling GUO ; Yanqun XIANG
Chinese Journal of Primary Medicine and Pharmacy 2010;17(11):1451-1452
Objective To explore the effect of social medical treatment in improving the quality of life for patients with nasopharyngeal carcinoma.Methods 32 patients with nasopharyngeal carcinoma were mentioned with social medical treatment (including psychological treatment,family visit,family tend,social healing service,etc).The result was measured by using the SQOL-NPC.and the different stages of the results were compared.Results All the patients were tracked in 2 years.All the scores were mark down in a table.Conclusion After analyzing the results,it was found that social medical treatment played an important role in improving the quality of life for patients with nasopharyngeal carcinoma.
5.Determination of the Main Content and Entrapment Efficiency in the Brucine Nanostructured Lipid Carrier by HPLC
Qingxia GUAN ; Xiaodan HUA ; Xiwu ZHANG ; Qiuhong LI ; Weinan LI ; Yuwei ZHAO
China Pharmacy 2015;(21):2983-2985,2986
OBJECTIVE:To establish a method for determining the main contents and entrapment efficiency in the bruc-ine nanostructured lipid carrier(NLC). METHODS:HPLC was adopted to determine the main content,sephadex gel filtration meth-od was employed to separate free drug in brucine NLC to determine the entrapment efficiency. The column was Dikma C18 with the mobile phase of mobile phase A(methanol)-mobile phase B [water-acetic acid-triethylamine(230∶2.4∶0.3,V/V/V)](30∶70,V/V)at the flow rate of 1 ml/min,the detection wavelength was 265 nm,volume was 10 μl and temperature was 30 ℃. RESULTS:The linear range of brucine was 4.00-80.00μg/ml(r=0.999 9);RSDs of precision,stability and reproducibility tests were≤1.67%;av-erage recoveries of content determination and sephadex gel filtration method were respectively 99.66%(RSD=0.45%,n=9) and 99.75%(RSD=1.74%,n=9);and the average entrapment efficiency was 69.92%. CONCLUSIONS:The method is simple,re-producible and efficient,and can be used for the determination of main contents and entrapment efficiency in brucine NLC.
6.The expression and prognostic significance of tumor suppressor gene ING1 in colorectal cancer
Weinan XUE ; Gan ZHANG ; Yanmei YANG ; Yuyan MA ; Gen SUN ; Binbin CUI
Practical Oncology Journal 2014;(5):385-390
Objective Inhibitor of growth 1 ( ING1 ) gene has been identified as a novel candidate of tumor suppressor gene .Over-expression of ING1 plays well-established roles in numerous cell processes ,inclu-ding DNA repair and cell apoptosis .Our study is to investigate the clinical significances of expression of ING 1 in colorectal cancer ( CRC) .Methods The mRNA level of ING1 in 82 matched samples comprising primary CRC and paired non-cancerous mucosa were detected and compared by quantitative RT -PCR.Then the correlations of mRNA level of ING1 with the clinicopathological characteristics and prognosis of patients with CRC were ana -lyzed.Results (1)In the same matched tissues,the expression level of ING1 was significantly higher in normal tissues than that in cancer tissues.(2)mRNA expression of ING1 was associated with certain clinical -pathologic variables such as tumor infiltrating level ,lymphatic metastasis,distant metastasis and advancing TNM stage .(3) We obtained the expression levels ratio of cancer tissue and normal tissue and found the lower ratio has a lower Disease-Free Survival(DFS)(P<0.0001).(4)ING1,as a candidate of tumor suppressor gene ,remained a sta-tistically-significant prognostic marker in the Cox regression analysis .Conclusion Down-regulation of ING1 may be correlated tightly with the occurrence and progression of sporadic colorectal cancer .Its expression level can be used to predict prognosis of CRC .
7.Clinical Study of Bacillus Coagulans Tablets Combined with Minus Xiaoyaosan Powder, Nifuratel nystatin Soft Capsule in Treatment of VVC
Xinru ZHAI ; Sufang LIU ; Xinshu LIU ; Wei CHEN ; Weiqian ZHANG ; Xiuhong ZHAO ; Weinan GUO
Journal of Kunming Medical University 2016;37(6):97-100
Objective To observe the effect of Bacillus coagulans tablets Combined with minus Xiaoyao powder, Nifuratel nystatin soft capsule in treatment of VVC. Methods A total of 108 cases of VVC. patients were randomly divided into 2 groups:observation group and control group. In the observation group (n=54), patients were given vaginal placement of Nifuratel nystatin soft capsule, 1 capsule daily, for 6 days;oral administration of minus Xiaoyao powder, 1 agent daily, for 7 days; and oral administration of Bacillus coagulans tablets, 3 tablets one time, 3 times a day, for 14 days, double dose at first. In control group (54 cases), patients were given vaginal placement of Nifuratel nystatin soft capsule, 1 capsule daily, for 6 days;and oral placement of vitamin C tablet, 1 tablet one time, 3 times a day,for 14 days. The short-term effect and the long-term recurrence of were observed 3-7 days, 1 months, 3 months, 6 months after stopping drug treatment. Results 3 days after stopping drugs, the effective rate in the observation group and the control group was 92.59%and 81.48%, respectively, the difference between the two groups was statistically significant (P<0.05) . 6 months after stopping drugs, the recurrence rate was 9.26% in the observation group, and 20.37% in the control group, the difference was statistically significant (P<0.05) . Conclusion For Vaginal candidiasis, on the basis of antifungal therapy, giving Bacillus coagulans tablets for regulation of intestinal micro ecological environment, and traditional Chinese medicine minus Xiaoyao powder for clearing heat and removing dampness, soothing the liver, can significantly improve the short term and long term curative effects,and reduce the recurrence rate.
8.Prevalence of depression and its risk factors in type2 diabetes mellitus
Juan ZHANG ; Yan BI ; Shahmei SHEN ; Guoyu TONG ; Shiwei CUI ; Weinan YU ; Dalong ZHU
Chinese Journal of Endocrinology and Metabolism 2011;27(10):796-799
Objective To investigate the prevalence of depression and its risk factors in type 2 diabetes mellitus.Methods Beck Depression Inventory (BDI) was used to evaluate depression in 2 966 type 2 diabetes mellitus patients [ male 1 463,female 1 503,age ( 56.4 ± 11.2 ) years,diabetes duration ( 6.3 ± 5.7 ) years ].Depression criteria:≤4 points,no depression group; 5-13 points,mild depression group; 14-20 points,moderate depression group; 21 points or higher,severe depression group.Meanwhile,the demographic and metabolic data and diabetes-related health behaviors were also investigated.The risk factors associated with depression were screened by logistic regression.Results 51% patients had depression,including 38% with mild,8% with moderate,and 5% with severe depression.Compared with no depression group,depression was correlated with female sex,low-annual income,diabetes education,diabetes treatment,with insulin and peripheral neuropathy( P<0.01 ).More smoking and younger age were found in severe depression( P<0.05 ).Partial correlation analysis showed that depression in type 2 diabetes mellitus was positively correlated with female sex,diabetes education,and peripheral neuropathy ; and negatively correlated with age (P<0.05).Conditional logistic regression equation showed that gender( OR =1.37 ),age ( 20-40 years,OR =1.52 ),diabetes education ( OR =1.51 ),and peripheral neuropathy ( OR =1.87 ) were risk factors for depression.Conclusion Depression is common in type 2 diabetes mellitus.More attention should be paid to screening depression in clinical practice.
9.Clinical application of pudendal thigh flaps in repairing skin and soft-tissue defects in the female urogenital triangle after excision of malignant tumors
Weinan WANG ; Jian ZHANG ; Yudan BAI
Chinese Journal of Dermatology 2020;53(10):816-817
Objective:To investigate clinical application of pudendal thigh flaps in repairing skin and soft tissue defects in the female urogenital triangle after excision of malignant tumors.Methods:From January 2015 to December 2017, 10 female patients with malignant tumors of the urogenital triangle (7 cases of extramammary eczematoid carcinoma and 3 of squamous cell carcinoma) received peripheral Mohs micrographic surgery in Department of Dermatologic Surgery, The Seventh People′s Hospital of Shenyang. During the surgery, the perforator flaps pedicled on the internal pudendal artery were used to repair vulvar defects in 8 patients with unilateral defects and 2 with bilateral defects.Results:Among the 10 patients, all the 12 flaps survived; 2 patients developed surgical wound infections, but experienced complete healing after wound dressing change, and the other 8 patients all experienced primary healing of incisions. After 6 months to 1 year of follow-up, the vulvas were plump and highly elastic in all the patients, with no narrowing of the vaginal opening, obvious contractures of scars, or recurrence of tumors.Conclusion:The pudendal thigh flaps pedicled on the internal pudendal artery is markedly effective for repairing skin and soft tissue defects in the female urogenital triangle.
10.Comparison of the clinical efficacy of thoracoscopic combined with laparoscopic esophagectomy(TLE) in the middle and lower stages of esophageal cancer patients between Mongolian and Han nationalities in Inner Mongolia
Zhipan HONG ; Renquan ZHANG ; Wenqiang YAN ; Feng GUO ; Weinan LIU ; Jingyi WANG ; Xuezhi WANG
Chinese Journal of Primary Medicine and Pharmacy 2018;25(5):587-591
Objective To prospectively study the clinical diversity of the middle and lower segment of stage of esophageal cancer patients who accepted the thoracoscopic combined with laparoscopic esophagectomy ( TLE) between Mongolian and Han nationalities in Inner Mongolia , to further clarity the feasibility of TLE.Methods 92 consecutive cases of middle and lower segment of stage of esophageal cancer patients of Mongolian and Han were selected,and the patients accepted the TLE ,including 41 cases of Mongolian and 51 cases of Han.The postoperative pain was evaluated with the visual analog scale (VAS) at 1-14d after operation,and the postoperative complication , the hospitalization of postoperation and the postoperative pathological situation were compared .Results Compared with the Han patients,the postoperative pain of Mongolian significantly reduced ,duration of postoperative of pain significantly shorter in the 1-5 d after surgery(P <0.05).Mongolian patients turned to mild pain in the second day of the postoperative period,and Han turned to mild pain in the fourth day after surgery .The postoperative pain in the 6-14 d after surgery of the Mongolian was not significantly different from Han (P >0.05).The Mongolian had lower incidence rate of postoperative complication compared with Han (9.8% vs.27.5%,χ2 =4.522,P <0.05).For example,the incidence rates of respiratory complications in Mongolian patients ,such as pulmonary infection,atelectasis and the occurrence of pleural effusion that need to be treated were significantly lower than those in Han (7.3% vs. 23.5%,2.4% vs.15.7%,4.9% vs.19.6%,P <0.05).There was no statistically significant difference in the incidence of other complications(P >0.05).The postoperative hospitalization of Mongolian was significantly shorter than that of Han[(11.9 ±1.2) d vs.(15.5 ±1.0) d,t =-15.811,P <0.05].No significant difference in the total number of cases of lymph node dissection ,the abdominal lymph node dissection and the chest lymph node dissection . The number of the regional lymph nodes metastasis of Mongolian was higher than that of Han [(3.9 ±0.7) vs. (1.8 ±0.7),t =13.460,P <0.05],most of which were poorly differentiated (6 /25/10 vs 20 /20 /11,χ2 =7.139, P <0.05).Meanwhile,the incidence rates of cancer embolus in the vasculature and nerve invasion of Mongolian were higher than those of Han(75.6% vs.47.1%,70.7% vs.17.6%,χ2 =7.706,26.418,all P <0.05).Conclusion The Mongolian were more easily tolerant to the TLE,which has the advantages of reducing pain ,trauma,rapid recovery, satisfactory curative effect and the lesser postoperative complications .The degree of the malignancy of esophageal cancer of Mongolian was higher than Han .Mongolian who suffered from esophageal cancer needed earlier discovery , earlier treatment and further research of the causes of difference .