1.Clinical Research of Sexual Hormone Level of Vascular Dementia
Xiaodong SHEN ; Shuanghong SHEN
Chinese Journal of Information on Traditional Chinese Medicine 2006;0(09):-
Objectives To investigate the relations between serum E2,T level and vascular dementia (VD) and therapy effect of Chinese medicine.Methods Seventy patients were selected and randomly divided into two groups:experimental group,which was treated with Chinese medicine and control group with western medicine.Results There was marked difference in E2 of female patient and E2,E2/T and T of male patient between experimental group and control group (P
2.Research on Molecular Biological Characteristics of Proto-oncogene pim-2.
Journal of Biomedical Engineering 2015;32(2):405-411
The purpose of this paper is to present the research on the molecular biological characteristics of proto-oncogene pim-2 and to analyze the related mechanism. Proto-oncogene pim-2 was studied and analyzed by the bioinformatics method and technology. With an online server, the chromosomal localization of pim-2 gene was analyzed, and the exon, open reading frame, CpG island and miRNAs complementary fragments and the like were predicted. With bioinformatics software, the physicochemical property of transcription protein of proto-oncogene pim-2 and various modification sites of protein sequence, such as ubiquitination and glycosylation, were predicted, the antigenic index was calculated, and the spatial structural was modeled. The research findings showed that the proto-oncogene pim-2 comprised six exons, the CDS (coding sequence) transcribed a section of peptide chain including 311 amino acids, a gene promoter has a CpG island, and the 3'UTR region contains an miRNA gene. The molecular weight of the Pim-2 protein was 34,188. 47, the isoelectric point was 5.78, the instability index was 45.87, and the extinction coefficient was 279nm. A plurality of covalent modification sites, two ubiquitination sites, four glycosylation sites, an SUMO sumoylation site, a nitrosation site, two palmitoylation sites and sixteen regions with higher antigenic index were distributed in the protein sequence. This research showed that the related regions and modification sites distributed on the sequence of proto-oncogene pim-2 were closely related to the carcinogenic effect thereof.
Amino Acid Sequence
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CpG Islands
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Exons
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Open Reading Frames
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Protein-Serine-Threonine Kinases
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genetics
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Proto-Oncogene Proteins
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genetics
3.Recent advance in treatment and prognosis of gastrointestinal stromal tumors
International Journal of Surgery 2008;35(11):774-777
Gastrointestinal stromal tumor(GIST) ,a kind of rare tumor,takes 1%~3% of all tumors in digestive tract,but are the most common in mesenehymal neoplasm.At present,the primal treatment of GIST is surgical operation,standard and rationality of surgery is the significant fatter that affects its curative effect.While imatinib is the main therapeutic tool for GIST that can' t benn resected or recurrence after operation.There is no definite circumscription between optimum and malignancy,there are many factors that influence the prognosis of GIST.We commonly apply Fletcher grading to evaluate the risk of GIST.
4.Wide surgical excision combined with low-dose adjuvant interferon-alpha 2b for the treatment of invasive cutaneous malignant melanoma: 32 case reports
Xiaodong CHEN ; Lixiong GU ; Xiaoyan WU ; Congcong SHEN ; Xiaodong YAO
Chinese Journal of Dermatology 2011;44(10):724-726
Objective To retrospectively analyze the therapeutic effect of wide surgical excision combined with low-dose adjuvant interferon-alpha 2b on cutaneous malignant melanoma.Methods A total of 32 patients with cutaneous malignant melanoma received wide surgical excision after preoperative examination and staging.The excisions were performed with a margin measuring 1-2 cm from the visible lesions or biopsy scars.Surgical modalities included direct suture after excision(4 patients),dactylolysis or toe amputation(6 patients),free skin grafting(15 patients),random skin flap transfer(3 patients)and pedicle skin flap transfer(4 patients).Lymph nodes were selectively dissected in 9 patients with regional transfer of lymph nodes,and inguinal lymph nodes were cleared away in 2 patients.One week after the operation,patients received adjuvant therapy with subcutaneous injection of interferon-alpha 2b(3 million IU,thrice per week)for one to three years.Results Preoperative tumor staging revealed 21 cases of cutaneous malignant melanoma at stage Ⅱ,and 11 cases at stage Ⅲ.The excisions healed by the first stage in all the patients.Up to June 2011,2 patients had been lost to follow up,5 patients with stage Ⅲ melanoma had died.Survival was observed in all of the 4 patients receiving 1-year follow up,12 of 13 patients receiving 1-3 year follow up,5 of 7 patients receiving 3-5 year follow up,and 4 of 6 receiving 5-year follow up.Of the 25 surviving patients,regional lymph node metastasis was observed in 8 patients,which developed within 2 years after the operation in 2 patients.The adjuvant therapy with interferon-alpha 2b lasted 3 years in 8 patients,and more than 1 year in 11 patients.Side effects were mild.Conclusion Wide surgical excision plus low-dose interferon-alpha 2b is effective for the treatment of stage Ⅱ and Ⅲ cutaneous malignant melanoma with lower local recurrence and higher survival rate.
5.Recent advance in transplantation tolerance induced by apoptosis of T lymphocyte
Xiaodong SHEN ; Jianbin XIANG ; Zongyou CHEN
International Journal of Surgery 2008;35(7):471-474
Apoptosis is great advancement in sphere of biology,it is characteristic death form at physiological state.Rencent researchs discover that apoptosis take important role in transplantation immunity.That graft is rejected is the major obstruction in transplantation.Allogeneic transplantation rejection is because of immune response that is mediated by T lymphocyte and aimed directly at allogenic antigen.Apoptosis of activated T lymphocyte through some pathways can induce immune tolerance.Some immune suppressant produce effect just by cell apoptosis.This review mainly presents recent advance in transplantation tolerance induced by apoptosis of T lymphocyte.
6.Validity and reliability of chinese version quality of life questionnaire for teenagers epilepsy patients
Hongliang DENG ; Xiaodong YUAN ; Jian SHEN
Chinese Journal of Behavioral Medicine and Brain Science 2012;21(2):181-183
ObjectiveTo evaluate validity,reliability and sensitivity of Chinese version quality of life in epilepsy inventory for adolescents (QOLIE-AD-48).Methods 143 cases of young epilepsy patients were tested with QOLIE-AD-48 and analyze validity,reliability and sensitivity of the scale.ResultsPolymerization/discriminant validity showed that there was correlation above 0.4 about each question within the subscale and its component table.Structural validity showed that all of the component list was significantly associated with total score (P < 0.01 ).The cronbach's α coefficient of the scale was 0.92,and 0.62 ~ 0.90 of the subscale,and ICC was 0.81.Good sensitivity was the total score decline with the increase of seriousness.ConclusionChinese version QOLIEAD-48 has good validity and reliability and sensitivity.
7.Experimental identification of endonuclease activity of the putative gene tls from phage PaP3
Xiaodong SHEN ; Fuquan HU ; Ming LI
Medical Journal of Chinese People's Liberation Army 1982;0(03):-
Objective To experimentally verify the putative function of gene tls from Pseudomonas aeruginosa phage PaP3. Methods The gene tls was amplified from the genome of phage PaP3 by PCR and subcloned into pMD18-T vector. Then the gene tls cut down from the vector was inserted into the plasmid pQE31, which could give the 6-His tag at the N' side of the expressed protein. The recombinant vector pQE-tls was transformed to E. coli JM109. After induction with IPTG, the expressed bacteria was resuspended and sonicated, then the inclusion body was obtained after centrifugalization. The inclusion body was then dissolved with lysis buffer. The inclusion body solution, which has the target protein, was then purified by affinity chromatography and renatured by dialysis. Finally the nuclease activity of the fusion protein H6-TLS was tested on the plasmid pMD-cos which contains the cutting site of terminase large subunit. Results The expression plasmid pQE31-tls was successfully constructed, and the target protein yield was up to 30% of the total bacterial proteins. Meanwhile the substrate vector pMD-cos was also successfully constructed. After purification and renaturation, the fusion protein H6-TLS could partially cut the substrate vector pMD-cos. Conclusion The fusion protein H6-TLS was successfully expressed, purified and renatured, and it was shown to possess nuclease function. The experiment lays the foundation for further research of the gene tls.
8.Determination of dynamic parameters of interaction between methotrexate enantiomer and dihydrofolate reductase by affinity capillary electrophoresis
Xin JIN ; Zuojun SHEN ; Xiaodong HE
Chinese Journal of Laboratory Medicine 2008;31(3):317-321
Objective To develop a method for the determination of the dynamic parameters of interaction between methotrexate(MTX)enantiomer and dihydrofolate reductase(DHFR).Methods An affinity capillary electrophoresis(ACE)method was adopted.Using bare fused-silica capillary,the electrophoresis buffer was 50 mmoL/L sodium tetraborate with 0.2%Brij-35,pH 9.50.The temperature of separation was controlled at 25℃ and a voltage of 25 kV was applied.The separation of the reaction mixture was performed at a wavelength of 254 nm.The difference of peak areas about the product was used to calculate the inhibitory rate and IC50 values.Results We establish the detection method for the dynamic parameters of interaction between MTX enantioner and DHFR.The separation of the reaction mixture could be achieved within 30 min.The IC50 value of D-(-)-MTX and L-(+)-MTX were 3.17×10-7 and 2.48×10-8mol/L,respective.The IC50 value of the D-(-)-MTX was 31.67×10-8mol/L,the L-(+)-MTX was2.48×10-8mol/L.The IC50 value of the D-(-)-MTX was about 13 times higher than that of the L-(+)-MTX.Conclusions ACE is a rapid.simple and accurate method that can be used to monitor DHFRdynamic reaction.The IC50 values of MTX enantiomer were quite different.The result first indicated that reaction between MTX enantiomer and DHFR had three-dimensional selection.
9.EVALUATION OF RENIN-ANGIOTENSIN SYSTEM IN DIAGNOSIS AND TREATMENT OF CONGENITAL ADRENAL HYPERPLASIA——AN ANALYSIS OF 22 CASES
Jun YE ; Xiaodong HUANG ; Yongnian SHEN
Chinese Journal of Endocrinology and Metabolism 1985;0(02):-
Eleven salt-losers (SL group) and eleven non-salt-losers (NSL group) of congenital a-drenal hyperplasia due to 21-hydroxylase deficiency (21-OHD) were evaluated for sodium status under routine regimen of glucocorticoid (4 salt-losers with mineralocorticoid at the same time). Venous samples were collected for the measurement of plasma renin activity (PRA), aldosterone (Aldo) , and a-drenocorticotropin (ACTH), and for serum cortisol (F), 17-OH progesterone (17-OHP), and testosterone (T). Urine samples were collected for 17-ketosteroid (17-KS). 10 age-matched normal children were chosen as control. The results showed that concentration of PRA, Aldo, 17-OHP, and T, were higher in both groups than in normal subjects (P
10.Discussion and Analysis of Mechanism on Method of Promoting Blood Circulation and Removing Blood Stasis in Ischemic Stroke
Siyu SHEN ; Xiaodong FU ; Wei SHANG
Journal of Zhejiang Chinese Medical University 2006;0(04):-
Ischemic stroke is a critical society-medicine-economy problem,and effective therapy is rather insufficient.Nowadays,method of promoting blood circulation and removing blood stasis was popularly adopted,but only enjoyed limited curative effect in segmental stage of illness in patients.In this article,we analyzed and discussed mainly concept and viewpoint on blood stasis syndrome in Traditional Chinese Medicine,moreover,and provided advanced data for experimental and clinical research in the future.