5.Clinical Significance and Influence on Glucocorticoid Receptor Resulted from Tripterygium Wilfordii Hook F for Children with Nephrotic Type of Henoch-Schonlein Purpura Nephritis
tai-guang, ZHOU ; zheng-hua, DENG ; shan-wen, HUANG
Journal of Applied Clinical Pediatrics 2006;0(17):-
Objective To explore the mechanism of tripterygium wilfordii hook f(TWHF)for Henoch-Schonlein purpura nephritis(HSPN,nephrotic type)in children.Methods All the children with HSPN(nephrotic type)were divided into 3 groups casually.Method of radioactive pairs conjugating analysis was used to determine the numbers of glucocorticoid(GC)receptors(GCRs).Results were statistically analysed respectively.Results GCRs tested in all the patients with HSPN(nephrotic type)before treatment were statistically lower than those in control group of normal children;GCRs in all the patients tested after 1 week treatment with GC were lower than before treatment.Three weeks later,GCRs in patients treated with TWHF increased much higher than them without TWHF.Following up the recurring times of all the patients 3 months to 5 years,they were much more in patients treated without TWHF treatment than in patients treated with it.Conclusions TWHF treatment on HSPN(nephrotic type)is obviously effective.It can not only decrease the dosage of GC,but decrease the recurring times.One of the mechanism may be TWHF can resist the down-regulation GC to GCR,and enhance the effect of GC.
7.Development and evaluation of a MAb-based ELISA for detection of Chlamydophila pneumoniae infection with variable domain 2 and 3 of the major outer membrane protein.
Zhou ZHOU ; Yi Mou WU ; Li Li CHEN ; Guang Chao LIU ; Liang Zhuan LIU ; An Wen ZHOU ; Jun Hua ZHANG
Biomedical and Environmental Sciences 2012;25(6):690-696
OBJECTIVEThis paper aims to develop a monoclonal antibodies (MAbs)- based ELISA for detecting Chlamydophila pneumoniae (C. pneumoniae) antigens in humans with the variable domains (VD) 2 and 3 of the major outer membrane protein (MOMPVD2-VD3) and to assess its sensitivity and specificity by comparing with a widely used MAb that is able to recognize the elementary bodies of C. pneumoniae.
METHODSMOMPVD2-VD3 were overexpressed in Escherichia coli and purified by affinity chromatography. Mice were immunized with the recombinant antigen, and hybridomas secreting MAbs were screened. Three stable hybridomas clones were selected and named 5D6, 7G3, and 8C9. The MAbs-based ELISA was scrutinized for species-specific recognition with a number of human throat swab samples from Group I (156 patients with typical respiratory illness clinically confirmed before) and Group II (57 healthy donors).
RESULTSIn Group I, 55 positive cases were detected by anti-EB MAb-based ELISA, 51 cases were positive by MAbs 5D6-based ELISA, and 33 and 38 cases were positive by MAb 8C9 and 7G3-based ELISA respectively. Of the 57 samples from Group II "healthy donors", 5 were positive and 52 were negative with both anti-EB and 5D6-based tests, while 2 and 3 positive cases were identified by the other two MAb-based ELISAs respectively.
CONCLUSIONThe novel MOMPVD2-VD3 MAb-based assay may have higher specificity than the anti-EB MAb, which may possibly be used as an alternative tool for the diagnosis of C. pneumoniae infection.
Animals ; Antibodies, Monoclonal ; Bacterial Outer Membrane Proteins ; immunology ; Chlamydophila Infections ; diagnosis ; microbiology ; Chlamydophila pneumoniae ; isolation & purification ; Enzyme-Linked Immunosorbent Assay ; methods ; Humans ; Mice ; Protein Structure, Tertiary
8.Effects of rosiglitazone on blood glucose, blood lipid and vascular remodeling in rats fed with high-fructose diet
Jinsheng WEN ; Bi HU ; Guang LONG ; Zhiliang DUAN ; Hongyan LING ; Shouhong ZHOU
Chinese Pharmacological Bulletin 1986;0(05):-
AIM To investigate the action of rosiglitazone on blood glucose,blood lipid,and the vascular remodeling in rats fed with high-fructose diet. METHODS After fed with high-fructose diet for one month,rats were randomly divided into two groups:High-fructose diet group that continued feeding with high-fructose diet for another month; High-fructose diet+rosiglitazone group fed with high-fructose diet and rosiglitazone (5 mg?kg -1?d -1, dissolved in water) for one month. At last,one half of each group were anesthetized,and the fasting blood, obtained from heart,was used to detect blood glucose,blood lipid,blood insulin. The aorta and mesenteric artery were gotten from the other half of each group, fixed in formalin,sliced and HE dyed. Pathology analysis system was used to measure the remodeling indexes of aorta and mesenteric artery:Lumen ,media,media/lumen,media cross-section area. RESULTS Comparing high-fructose diet+rosiglitazone group with high-fructose diet group, rosiglitazone decreased blood pressure(16.0 kPa vs 18.0 kPa, P
9.Secretory-expression of Antimicrobial Peptide Bactenecin7 Gene in Lactococcus lactis and Analysis the Bioactivity of Its Expression Products
Pu LI ; Yang-An WEN ; Jin-Bo LIU ; Xi-Mei YANG ; Jin-Jing ZHOU ; Zhi-Guang TU ;
China Biotechnology 2006;0(01):-
To construct a secretory-expression vector of antimicrobial peptide Bactenecin 7(Bac7),and identify the secretory-expression product in L.lactis MG1363 and its bioactivity.The splicing primers of regulation elements and Bac7 gene,which designed according to codon usage preferences of L.lactis MG1363,were chemically synthesized,and the overlap-extension PCR method was used to splice the full length of Bac7 gene.Then the Bac7 gene was linked to expression vector pMG36e to construct pMG36e/Bac7 vector,and pMG36e/Bac7 was transformed into L.lactis MG1363 by electrophoration.RT-PCR and Western blot assays were applied to investigate the expression of the Bac7 gene in L.lactis,and bioactivity of Bac7 in culture supernatant of L.lactis was tested with plate-diffusion method.The results showed that the Bac7 gene and its regulation elements was amplified and cloned in the vector pMG36e successfully,The secretory-expressed Bac7 in L.lactis MG1363 harboring pMG36e/Bac7 was identified by Western blot,and it had high bacteriostatic activity against E.coli.These results indicate that the recombinant L.lactis MG1363 could express bioactive Bac7,which lays a foundation for further study of oral administration of a Bac7-secreting L.lactis to treat intestinal bacteria infection.
10.Prevention and treatment of stricture after esophageal burns in 168 cases
Yao-Guang JIANG ; Ru-Wen WANG ; Jing-Hai ZHOU ; Tai-Qian GONG ; Yun-Ping ZHAO ;
Chinese Journal of Trauma 2003;0(12):-
Objective To summarize our experience in prevention and treatment of stricture after esopageal burns in the past thirty years.Methods There were 168 cases in this series.Of them,158 cases underwent surgical management in this study.Modified intraluminal stenting was used in 34 cases, colon interposition without resection of strictured esophagus in 77 cases,gastric transposion with resection of the stricture in 27,repair of cervical stricture with platysma myocutaneous flap in 22,and miscellane- ous operation in 12.Eleven cases experienced operation twice or more at our department.Results Twenty-nine cases recovered after treatment with intraluminal stenting,and 5 re-experienced stricture after stent removal.One of the 5 cases with failed stent responded to bougienage,and the remaining 4 cases re- quired esophageal reconstruction later.Of the 77 colon interpositions,5 cases died postoperatively,and complications of cervical anastomotic fistula occurred in 14 cases,anastomotic stenosis in 4,and abdomi- nal incision dehiscence in 2 cases.In the 27 cases with gastric transpositions,postoperative complications of anastomotic stricture occurred in 2 cases and empyema in 1 patient.There was a cervical leak in 3 ca- ses of the 22 cases treated with the repair of cervical esopageal or anastomotic stricture with a platysma myocutaneous flap.In the 12 cases treated with miscellaneous operation,one died of intestinal obstruc- tion.All the survivors had regular diet after discharge.Conclusions Intraluminal stenting can prevent the formation of caustic esophageal stricture.The location of the cicatricial esophagus dictates whether to perform concomitant esophagectomy during esophageal reconstruction.Platysma myocutaneous flap repair is an excellent method for the treatment of severe cervical esophageal or anastomotic stricture.