1.Insulin resistance in first-degree relatives of patients with Graves disease
Zhengrong XU ; Ming LIU ; Haifeng SUN ; Jun GU ; Li SHI
The Journal of Practical Medicine 2015;(12):1945-1947
Objective To observe insulin resistance in first-degree relatives of patients with Graves disease. Methods All subjects in control group and experiment group including first-degree relatives of GD patients underwent oral glucose tolerance tests (OGTT) and insulin releasing tests then the degree of insulin resistance was analyzed. Results Blood glucose at each point of OGTT, insulin level and insulin resistance index 1 (HOMA-IR) of experiment group were higher than those in control group, while insulin activity index (IAI) and HOMA-βwere significantly lower than those in control group. Conclusion Patients insulin resistance could be found among first-degree relatives of GD patients.
2.Screening and identification of proteins interacting with HCMV UL132 protein
Fei ZOU ; Shuang WANG ; Si WU ; Zhengrong SUN
Journal of Jilin University(Medicine Edition) 2017;43(4):690-693,前插1
Objective:To screen the proteins interacting with the human cytomegalovirus(HCMV)UL132 protein from the human fetus brain cDNA library by using Yeast Two-Hybrid System, and to elucidate the possible mechanism of UL132 protein in congenital cytomegalovirus infection.Methods:The HCMV UL132 fragment was amplified by polymerase chain reaction,the amplified HCMV UL132 fragment and expression vector pGBKT7 were digested and purified,and the HCMV UL132 fragment was linked to the vector pGBKT7.The pGBKT7-UL132 was constructed and transformed to yeast AH109, then the Human Fetal Brain DNA Library DNA was transformed into AH109 yeast.Using HCMV UL132 as abait, a human fetus brain cDNA was screened and the proteins interacting with UL132 protein were searched, the positive clone was sequenced and analyzed by bioinformatics methods.Results:The bait expression vector pGBKT7-UL132 was successfully constructed.The results of double enzyme digestion showed that there were two visible bands of 800 and 7 000 bp, respectively.After transformation of library plasmid, the transformation efficiency was calculated, and the transformation efficiency was 6.6×103 cfu· μg-1.There were 95 blue clones by X-gal coloration reactionsequencing and there were 10 clones interacting with the protein encoded by UL141 protein.The BLAST analysis showed that 7 of them were highly homologous with CAML.Conclusion:CAML might be one interaction protein with HCMV UL132 in Human Fetus Brain cDNA Library,suggesting that the interaction may be associated with the invasion and proliferation of the HCMV.
3.Screening and Analysis of Proteins Interacting with HCMV UL145 from a Human Fetal Brain cDNA Library
Fei ZOU ; Shuang WANG ; Si WU ; Zhengrong SUN
Journal of China Medical University 2017;46(4):309-312
Objective To screen a human fetal brain cDNA library for proteins that can interact with HCMV UL145 using a yeast two-hybrid system.Methods A bait plasmid (pGBKT7-UL145) was constructed.Using HCMV UL145 as bait,a human fetal brain cDNA library was screened and proteins interacting with UL145 were identified using bioinformatic methods to sequence and analyze the positive clones.Results Three clones interacting with HCMV UL145 were found,and identified as FOXG1.Conclusion Several proteins interacting with HCMV UL145 in the human fetal brain cDNA library were identified as FOXG1,indicating that this protein may play an important role in the course of HCMV infection.
4.Cloning and Expression of Heat Shock Protein 60 Gene from Chlamydia trachomatis
Yuzhen LI ; Hong SHANG ; Zhengrong SUN ; Yongjun JIANG ;
Chinese Journal of Dermatology 1995;0(03):-
90%inasinglestep,andtheproteinyieldwas2.5mg/L.ConclusionPurifiedChsp60kDantigenisobtained,andtheantigenmightbeappliedtodetectantibodyinpatientsinfectedwithChlamydialtrachomatis,andwillcontributetostudytheroleofChsp60inimmunopathogenesis.
5.Preparation of Blood-Deficient Model and Effects of Tangkuei Blood-Supplementing Decoction on Hemopoiesis
Ruomin JIN ; Lian NING ; Changxun CHEN ; Zhengrong SUN ; Chengli SUN ; Zhibi HU ;
Chinese Traditional Patent Medicine 1992;0(04):-
Objective: To prepare a blood deficient model and study the effect of Tangkuei Blood Supplementing Decoction on hemopoiesis in this model. Methods: This model was made in mice by i.p. an accumulate doses of 60mg/kg acetylphenylhydrazine (APH) and 160mg/kg cyclophosphamidum (CY). The RBCs, WBCs, reticulocytes and bone marrow nucleated cells (BMNC) were counted, the micro structure of bone marrow was observed. The swimming time, the body temperature and the plasma cAMP, cGMP levels were measured. The effects of Tangkuei Blood Supplementing Decoction by p.o. administration on promoting the hemopioetic function were observed with the model mice. Results: Tangkuei Blood Supplementing Decoction could remarkably increase RBC, WBC, BMNC, improve the proportion of reticulolytes in peripheral blood and the micro struture of bone marrow, prolony the swimming time, raise the body temperature and the specific value of cAMP/cGMP. Conclusion: The model exhibits the main features of blood deficiency, and can be used as one of models of blood deficiency. Tangkuei Blood Supplementing Decoction can obviously improve the dual deficiention of qi and blood of model mice by supplementing qi and blood.
6.Analysis of HTLV infection among voluntary blood donors in Wenzhou
Jie LIN ; Guoyong HUANG ; Yanfei LIU ; Bi LIN ; Peifeng SUN ; Jingjing PAN ; Li CHEN ; Zhengrong YE
Chinese Journal of Blood Transfusion 2017;30(7):794-795
Objective To analysis the human T lymphotropic virus (HTLV) infection status in Wenzhou among voluntaty blood donors.Methods Selected 72 417 voluntary blood donors of Wenzhou from from March,1,2016,to November,30,2016,to screen HTLV-Ⅰ / Ⅱ antibody by ELISA method.The positive samples were reexamined two times,two test results of samples were determined positive by ELISA.HTLV positive samples was confiemed by Western Blotting (WB).Results Screened 23 cases of anti-HTLV positive by ELISA method,then confirmed 9 cases of HTLV positive by Western Blotting (WB).HTLV infection rate of Wenzhou blood donors was 0.01% (9/72 417).Conclusions HTLV infection was found among volunteer blood donors in Wenzhou,but the HTLV infection rate of volunteer blood donors in Wenzhou is still at a relatively low level.
7.Efficacy of transforaminal endoscopic nerve root decompression in the treatment of degenerative lumbar spinal stenosis
Zhengrong YU ; Chunde LI ; Sainan ZHU ; Haolin SUN ; Yao ZHAO ; Longtao QI
Journal of Peking University(Health Sciences) 2017;49(2):252-255
Objective:To evaluate the feasibility of transforaminal endoscopic nerve root decompression for degenerative lumbar spinal stenosis (DLSS).Methods: From July 2011 to April 2016,96 cases of single segment DLSS were involved.All the patients had unilateral lower extremity neurological symptoms,signs,neurogenic intermittent claudication of less than 500 m.Imaging examinations (CT or MRI) or diagnostic nerve root block confirmed single segment degeneration.The mean age was (71.6±5.4) years,male: 55 cases,female: 41 cases.Their intraoperative blood loss,operation time,complications,ambulation time and discharge time were recorded.Leg pain VAS,ODI were used to evaluate the pain and lumbar function of the patients.The clinical efficacy was evaluated by Nakai evaluation.Results: All the patients were performed endoscopic decompression of the lateral recess and nerve root by removing the ventral part of the superior facet joint,the ligamentum flavum and the intervertebral disc.The decompression range was from the inferior edge of the upper pedicle to the superior edge of the lower pedicle.The nerve root was detected to have no compression and the pulse of nerve root returned to normal.The patient got ambulant on the operation day and discharged if he had no discomfort symptom.In the study,68 cases got follow up.The mean follow-up time was 12.1 months (6-63 months).The VAS at dif-ferent follow-up time points was improved relative to the baseline,and the difference was statistically significant (F=491.60,P<0.001).The ODI at different follow-up time points was improved relative to the baseline,and the difference was statistically significant (F=189.91,P<0.001).The excellent and good rates of Nakai evaluation were 79.4% (excellent in 42 cases,good in 12 cases,fair in 10 cases and poor in 4 cases).The mean intraoperative blood loss was (49.29±11.86) mL.The mean operation time was (92.46±21.34) min.The mean ambulation time was 1.8 h.The mean discharge time was 2.3 days.Postoperative epidural hematoma was found in 1 case.Foot drop was found in 1 case.Second stage open surgery was performed in 6 cases.Conclusion: We can apply transforaminal endoscopic decompression for the patients of lumbar spinal stenosis who have unilateral nerve root irritation.Patients with transforaminal endoscopic decompression can get less surgical trauma,quick recovery and obtain good short-term outcome.
8.Study on Dsg3 induced activation of T cells in first degree relatives of patients with pemphigus vulparis
Zhongxiang WEI ; Long GENG ; Jie HU ; Zhengrong SUN ; Shuyan DU ; Yi JIANG
Chinese Journal of Microbiology and Immunology 2009;29(12):1090-1093
Objective To investigate The Th1/Th2 and Tc1/Tc2 polarization in the peripheral blood of first degree relatives of pemphigus vulgaris(PV) and healthy control individuals, and to approach the mechanism of the Dsg3-specific autoimmunity in PV. Methods The peripheral blood mononuclear cells (PBMC) from first degree relatives and healthy control was stimulated for72 h with Dsg3 and without Dsg3. Th1/Th2, Tc1/Tc2 was assessed by four-color flow cytometry. Results The mean frequency of Dsg3-spe-cific Th2 cells for PV antibody positive first degree relatives was 10.13%±3.72%, compared with stimula-tion without antigen 7.28%±3.58%, the difference was significant (P<0.05). The percentage Dsg3-spe-cific Th2 was markedly higher in the PV antibody positive first degree relatives group than that in the control group(10.13%±3.72% vs 6.10%±2.82%, P<0.05) , Tc2 was markedly higher also (20.01%± 10.43% v514.91%±8.06%, 20.01%±10.43% vs 9.58%±5.49%, P<0.05). Conclusion When Dsg3 stimulated PBMC were used to stimulate autologous T cells an increased amount of Th2 and Tc2 was observed, it is implied that the imbalance of Th1/Th2, Tc1/Tc2 might play an important role in the initia-tion of PV.
9.Amino acid sequences analysis of human cytomegalovirus UL149 proteins binding peptides
Yueping WANG ; Qiang RUAN ; Yaohua JI ; Zhengrong SUN ; Rong HE ; Ying QI ; Yanping MA
Chinese Journal of Microbiology and Immunology 2008;28(10):904-908
Objective To identify the peptide that have strong ability binding to HCMV-UL149 encoded protein,and to analyze the characteristics of the amino acid sequence of UL149-binding peptides.Methods Expressed UL149 proteins of three genotypes were used to screen the binding peptide in the random peptide display library,then the encoding sequence of binding peptides in the selected clones were sequenced.The amino acid sequences of the binding peptides were analyzed for their homology,and were com pared with those of the known protein in protein banks.Results The homologous amino acid sequence W/A/F/V-D/E-D/E-G-W/F/I/L were found within the binding peptides selected by proteins of all the three UL149 genotypes proteins,and no difference between three groups was found.The alignment with amino acid sequences of the known proteins in protein banks showed that the binding peptides of UL149 putative protein have homologous amino acid sequences with immunoglobulin heavy chain variable region(IgHV),the serine/threonine protein kinases,compliment factor H,zinc finger protein,MHC Ⅰ molecule,eukaryotic translation initiation factor,nuclear factor and so on.Conclusion The UL149 encoding proteins have binding ability to proteins mentioned above,and might interfere with the immunity responds to HCMV infection through multiple mechanisms.
10.Screening of protein interacting with the transcript of UL128 gene showed two protein patterns by yeast two-hybrid from human fetus brain cDNA library
Gaowei REN ; Xin CUI ; Yanping MA ; Ying QI ; Qiang RUAN ; Zhengrong SUN
Chinese Journal of Microbiology and Immunology 2010;30(8):737-742
Objective Using yeast two-hybrid system to screen the proteins which can interact with the human cytomegalovirus (HCMV) UL128 which have two difference transcription structure from human fetus brain cDNA library, and compare the difference with structure and function of interacting proteins. Methods Two fragments of UL128 were amplified by 3'RACE and 5'RACE technology, the length are 519 bp and 642 bp, respectively. The "bait plasmid" (named as pGBKT7-UL128-519 bp and pGBKT7-UL128-642 bp) was constructed successfully. Using pGBKT7-UL128-519 bp and pGBKT7-UL128-642 bp as a bait, a human fetus brain cDNA was screened and the proteins interacting with UL128-519 bp and UL128-642 bp encoded protein were searched, and the positive clones were sequenced and analyzed by bioinformatic methods. Results EFEMP2 interacting with HCMV UL128-519 bp were identified, THY-1 interacting with HCMV UL128-642 bp were identified. Conclusion EFEMP2 and THY-1 proteins interacting with HCMV UL128-519 bp and UL128-642 bp in human fetus brain cDNA library were successfully screened, but same proteins weren't found from the proteins interacting with UL128-519 bp and UL128-642 bp protein, UL128-519 bp and UL128-642 bp protein may be play an different effect in the process of infect by HCMV.