1.Value of transvaginal ultrasonography in diagnosis of ovarian pregnancy
Xiangying HU ; Weiwen YING ; Mei ZHAO ;
Chinese Journal of Ultrasonography 2003;0(12):-
Objective To evaluate the value of transvaginal ultrasonography in diagnosis of ovarian pregnancy. Methods Ultrasound features of 21 cases of ovarian pregnancy were retrospectively studied in comparison with those of surgery and pathology. Results All the cases were diagnosed extrauterine pregnancy and suggested 3 cases with the lesion localizing inside the ovary,3 cases superficial to the ovary, 1 case unclear localization and 2 cases misdiagnosed as tubal ectopic pregnancy, the correct localization was made in 66.7 % of 9 unruptured cases by endovaginal sonography. Twelve ruptured cases were unclear localization by endovaginal sonography. The sonographical appearance of ovarian pregnancies showed normal or little bigger uterus, empty uterine cavity, a gestational sac or inhomogenous strong echoes interior or superior to the ovary, or complex mass in the adnexal area with abundant free fluid in the pelvic. Conclusions Transvaginal sonography is of diagnostic value in ovarian unruptured pregnancy.
2.Identification and characterization of partner proteins interacting with fatty acid activation enzyme Slr1609 in Synechocystis sp. PCC 6803.
Le XU ; Qin WU ; Hu JIN ; Lei CHEN ; Weiwen ZHANG
Chinese Journal of Biotechnology 2015;31(8):1194-1202
To understand molecular modules related to polyunsaturated fatty acids (PUFA) synthesis and eventually produce PUFA at high efficiency, we developed a protein complex analysis technology in Synechocystis sp. PCC 6803, and applied it to identify possible partner proteins interacting with the key enzymes that catalyze PUFA biosynthesis. We first constructed a recombinant expression of protein of slr1609 encoding the fatty acid activation enzyme, by fusing 3xFLAG tag with the target protein. Then we verified its expression by Western blotting targeting 3xFLAG tag. To maximize purification of Slr1609 protein complex, we optimized the protein expression conditions of Slr1609 in Synechocystis in a 5 L fermenter by monitoring its gene expression using RT-qPCR. The purification of the Slr1609 protein complexes was demonstrated by a Native-PAGE analysis. Finally, LC-MS/MS proteomic analysis allowed identification of the possible partner proteins interacting with Slr1609.
Bacterial Proteins
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chemistry
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Chromatography, Liquid
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Fatty Acid Synthases
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chemistry
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Fatty Acids, Unsaturated
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biosynthesis
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Proteome
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chemistry
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Proteomics
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Synechocystis
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enzymology
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Tandem Mass Spectrometry
3.The Analysis of Psychological Health of College Students with Guarded Experience and Ways to Solve it
Jianghui HU ; Qian LI ; Wenjian ZHAO ; Weiwen LIU ; Mengjuan TANG
Chinese Journal of Medical Education Research 2003;0(04):-
Objective: To know the psychological health status of the college students with guarded experience and to supply reasonable suggestion for psychological health education and consultation.Methods: SCL-90 questionairs were applied to survey the psychological health status of the college students in grade 2 and 3.Results: The psychological characteristic of the students with guarded experience involve.(1) Compared with the national college students norm,the scores of interpersonal sensitivity,depression anxiety and horror are higher(.2) Compared with the college students without guarded experience,the scores of anxiety and horror are higher.(3) Inside the students with guarded experience,the scores of interpersonal sensitivity,depression,anxiety and horror in females are higher than those in males.The above outlined have statistical significance.Conclusion: The guarded experience has positive influence on college students,psychological health,especially on females,We should enforce psychological health education,improve the psychological quality and reduce the psychological disease.
4.The discussing of nurses collocating and training in clinical health education
Rong HU ; Fang SUI ; Jihong ZHONG ; Weiwen WANG ;
Journal of Medical Postgraduates 2003;0(12):-
To find a way to improve the effects of clinical health education,the clinical health education nurses collocating qualifications to hold their posts, job duties, examinations of training, and practical efficacies were recommended. The setup of clinical education nurses had the advantages as follow: First, the clinical health education with high levels and high qualities can effectively strengthen the patients attending consciousness;second,scientific trainings of health education nurses were useful to pre control the qualities of the health education and improve the level; At last, respecting and caring for patients were the key points to make the patients satisfy the health education.
5.Empirical research on the efficacy of medical colleges assessment reform
Chunhui ZHANG ; Geyu CHEN ; Weiwen XI ; Gui HU ; Mingang WEN
Chinese Journal of Medical Education Research 2012;11(4):415-418
Course assessment is the important part of teaching and education.Double effects of improving the teaching and education quality can be achieved through emphasizing assessment methods,separating teaching and testing,building test bank and network exam,offering course of basic clinical skills as well as verified assessment methods,such as stage-based comprehensive exam,unified exam of the course,national entrance exam.The first pass rate of national medical practitioner qualification exam can be guaranteed through implementing these measures.
6.Management of vascular variation in free transplantation of posterior interosseous perforator flap
Haoliang HU ; Zhijun PAN ; Xin WANG ; Hong CHEN ; Weiwen ZHANG
Chinese Journal of Microsurgery 2013;(2):119-122
Objective To discuss the method and treatment outcome of vascular variation in repairing skin defect of the hand by free transplantation of posterior interosseous perforator flap.Methods Eight cases with vascular variation were adjusted flap position,two cases were repaired by single perforator flap,three cases were repaired by cutting perforator and anastomosing perforator after changing the path,three cases were repaired by designing composition leaves flap.Results Seven flaps survived,one flap partly necrosis and healed by skin-grafting,and all of the patients were followed-up 3 to 18 months.The color,texture and thickness of the flaps were satisfactory.The movements of the fingers were satisfactory.According to the hand function evaluation criteria issued by the Hand Surgery Society of the Chinese Medical Association,outcomes were rated excellent in 1 case,good in 5 cases,fair in 2 cases.The excellent and good rate was 75%.Conclusion When finding vascular variation in repairing skin defect of the hand by free transplantation of posterior interosseous perforator flap,adjust flap position,repair by single perforator flap,cutting perforator and anastomosing perforator after changing the path,or designing composition leaves flap is a good treatment option.
7.Treatment of Lithotripsy for Acute Renal Failure Resulting from Upper Urinary Calculi
Xiang HE ; Bing WANG ; Weiwen YU ; Zhenghui HU
Journal of Medical Research 2006;0(02):-
Objective To study and evaluate the therapeutic safety and effect of frequency-doubled-double-pulse laser(FREDDY)lithotripsy for treating upper urinary calculi combined with acute renal failure.Methods The clinical data of 32 cases treated by frequency-doubled-double-pulse laser(FREDDY)lithotripsy were retrospectively analyzed.Results After the operation the serum BUN and Cr levels in the patients got close or returned to normal and the free rate of the stones was up to 90.6%(29/32).Conclusions The ureteroscopic frequency-doubled-double-pulse laser(FREDDY)lithotripsy has the advantage of safety,high efficiency and less trauma for treating the upper urinary tract obstruction combined with acute renal failure.It can also deal with the bilateral ureteral stones at one time.It can be the first choice when the condition is proper.
8.Pharmacological Effect of EPF on Biomechanical Properties among Ovariectomized Rats
Peng CHEN ; Wenhe LIU ; Linlin YAN ; Jiayu CHEN ; Weiwen HU ; Xiwen CAO ; Yang LI
World Science and Technology-Modernization of Traditional Chinese Medicine 2014;(8):1814-1818
This study was aimed to explore pharmacological effects of epimedium pubescen flavonoid (EPF) on biomechanical properties among ovariectomized rats. Sixty female Sprague-Dawley (SD) rats (aged 2-month-old) were randomly divided into six groups (n = 10), which were the sham control group (Group A), the model group (GroupB), the standard group (Group C), the treated 1 group (Group D), the treated 2 group (Group E), and the treated 3 group (Group F). Except the sham control group (Group A), rats in other groups had been ovariectomized. All rats were given the same feedstuff. Meanwhile, Group C was given calcium 75 mg·kg-1 combined with VitD3 21 IU·kg-1 by gastrogavage every day for 4 months; Group D was given EPF 75 mg·kg-1; Group E was given EPF 150 mg·kg-1;Group F was given EPF 300 mg·kg-1. At the end of the 4th month, all rats were sacrificed. Bones, which included tibia, femur and humerus of both sides and all lumbar vertebra bodies, had been taken out. Measurement was made on the elastic modulus, maximum loading capability, maximum stress, potential energy of deformation, and structural rigidity of biomechanical properties of the fourth lumbar vertebra body (LV4); the maximum loading capability, bone break load, potential energy of deformation, structural rigidity of the structural dynamics properties of the femur com-pact bone; the elastic modulus, maximum stress, maximum inherent strain, bone break stress, and bone break strain of the mechanical properties of a material of the femur compact bone in the experimental rats. The results showed that compared with Group B, the elastic modulus, maximum loading capability, maximum stress, potential energy of deformation, and structural rigidity of LV4; the maximum loading capability, bone break load, potential energy of de-formation, structural rigidity of the structural dynamics properties of the femur compact bone; the elastic modulus, maximum stress, maximum inherent strain, and bone break strain of the mechanical properties of a material of the fe-mur compact bone were obviously increased in Group A, D, E and F (P< 0.05). Group C had increasing tendency. There were no statistical differences among Group A, C, D, E and F. Group D, E, and F had increased with EPF dose-dependently. However, there were no statistical differences among them. There were no statistical differences on bone break strain of the mechanical properties of a material of the femur compact bone among Group A, C, D, E, and F. It showed that ovariectomization reduced the biomechanical properties of vertebra bodies, structural dynamics properties of the femur compact bone, and the mechanical properties of a material of the femur compact bone. The application of EPF can effectively prevent and treat the decreasing of biomechanical properties of ovariectomized rats, so as to keep them in a relatively higher level.
9.Comparison of end-to-side and end-to-end microvascular anastomosis in free perforator flap transfer for hand skin and soft tissue defect
Xueyuan LI ; Yangjian WANG ; Weiwen ZHANG ; Haoliang HU ; Xiaoling ZHOU ; Hong CHEN ; Xin WANG
Chinese Journal of Microsurgery 2016;39(1):8-11
Objective To observe the survival rate of free flaps and incidence of vascular crisis following the perforator flap transfer in end-to-side microvascular anastomosis compared with the traditional method and investigate the scientificity and practicability of this scheme.Methods From February, 2012 to October, 2013, 152 cases of free flaps (including superficial illiac circumflex perforator flap, lateral arm flap, peroneal perforator flap, and anterolateral thigh flap) were performed.The end-to-side anastomosis were performed in 72 cases while end-to-end anastomosis in 80 cases;All patients were followed up for 6-24 months.The occurrence of vascular crisis in all cases were observed and recorded.The results of the two groups were conducted statistical analyzed.Results The average anastomosis time for end-to-side anastomosis (21.3 ± 3.8 min) was significantly higher than the end-to-end anastomosis (14.4 ± 3.2 min) (P < 0.05).The incidence of anastomotic vasospasm after end-to-side anastomosis (5.6%) was significantly lower than traditional method (16.3%) (P < 0.05).There was no significant difference in the survival rate of the free flaps between the end-to-side anastomosis group (97.2%) and the traditional group postoperatively (96.3%) (P > 0.05).Conclusion Although anastomosis times were increased in the end-to-side group, this technique showed lower spasm rate and similar flap survival rate.Therefore, this technique is a reliable and technically feasible method and should be considered first as a choice when facing vessel discrepancy and for preserving the recipient artery and vein system.
10.Cloning of human NKX3.1 gene promoter and assay of its promoter activity in different tumor cell lines
Anli JIANG ; Pengju ZHANG ; Xiaoyan HU ; Weiwen CHEN ; Meilan HE ; Feng KONG ; Jianye ZHANG
Chinese Journal of Pathophysiology 2000;0(10):-
AIM: To study the basic mechanism of transcriptional regulation,NKX3.1 gene promoter was cloned and its promoter activities in prostate cancer cell lines and other cancer cell lines were tested.METHODS:(1.04 kb)-promoter fragment of NKX3.1 gene was obtained by PCR and cloned into pGL_3-basic and pEGFP-1 that are promoter-less reporter vectors to examine its promoter activity driving the reporter gene transcription.The promoter activity was determined by dual-luciferase reporter assay and the expression of GFP reporter observed under fluorescence microscope.RESULTS: The sequence of the cloned(1.04 kb) promoter proved to be correct by DNA sequencing.The dual-luciferase reporter assay(M1/M2) showed that the promoter activity in LNCaP cell transfected with pGL_3-(1.04 kb) promoter was about 1.5-fold higher than that of pGL_3-control transfection and 50-fold higher than that of pGL_3-basic transfection.To investigate the 1.04 kb-promoter activity in different tumor cell lines,the constructed pGL_3-(1.04 kb) promoter and pEGFP-1.04 kb promoter were transfected into several cell lines,respectively.The results showed that the activity of(1.04 kb) promoter in LNCaP was highest among the tested cell lines.Multiple consensus sequence elements have been identified within the(1.04 kb) fragment using TRANSFAC database.Further experiments will be done to determine their founctions.CONCLUSION: Cloned 1.04 kb fragment upstream of NKX3.1 gene presented a strong promoter activity and its activity was highest in LNCaP cell among the tested tumor cell lines.