3. Chemical constituents from Origanum vulgare
Chinese Pharmaceutical Journal 2012;47(14):1109-1113
OBJECTIVE: To investigate the chemical constituents of Origanum vulgare L. METHODS: The chemical constituents were isolated by silica gel, ODS, Sephadex LH-20, as well as RP-HPLC column chromatographies. Their structures were elucidated based on their physicochemical properties and spectral data. RESULTS: Thirteen compounds were isolated from O. vulgare. Their structures were identified as 4-(O-β-D-glucopyranosyl)-hydroxy-7-(3', 4'-dihydroxy-benzoyl)-benzyl alcohol(1), 5, 7, 4'-trihy-droxy-8-C-p-hydroxybenzylflavone(2), 6, 7, 4'-trihydroxyflavone(3), 1, 2, 4-benzenetriol(4), methyl 3-(3', 4'-dihydroxyphenyl) lactate (5), (+)-(R)-butyl rosmarinate (6), didymin (7), apigenin (8), apigenin 7-O-β-D-glucoside (9), luteolin (10), ferulaic acid (11), caffeic acid (12) and β-sitosterol(13) Respectively. CONCLUSION: Compounds 1~7 were isolated from O. vulgare for the first time. Copyright 2012 by the Chinese Pharmaceutical Association.
4.Screening of marker gene in Yersinia pestis plasmid
Shan-shan, DONG ; Ying, GUO ; Peng, WANG ; Zhi-zhong, SONG
Chinese Journal of Endemiology 2012;31(5):490-494
Objective To screen the conservative,stable and specific DNA signature sequence in the plasmid of Yersinia pestis.Methods Specific validation trials and stability of the qualification test were carried out to 40 strains of Yersinia pestis,47 strains of non-Yersinia pestis of home and wild types of rodent in Yunnan,by using 32 DNA sequences derived from Yersinia pestis in the plasmid and conventional PCR technology,and Yersinia pestis vaccine strain EV76 as a positive control.Results Four pairs of relatively conservative,stable and specific DNA marker genes were screened:YPMT1.05c,YPMT1.03c,YPMT1.42 and YPMT1.04c.Conclusions The 4 pairs of Yersinia pestis DNA signature sequences can be used for rapid diagnosis of plague.
5.Therapeutic effects of treatment of posterior malleolar fractures with medial-extension type through posterioromedial and posteriorlateral incision.
Shu JIANG ; Shan-Qing YIN ; Xiao-Shan GUO
China Journal of Orthopaedics and Traumatology 2014;27(6):496-499
OBJECTIVETo explore clinical outcomes of posterior malleolar fractures with medial-extension type through posterioromedial and posteriorlateral incision.
METHODSFrom January 2008 to January 2011,25 patients with posterior malleolar fractures with medial-extension type were treated by hollow lag screw. Among them, 15 patients were treated through posteromedial incision,including 9 males and 6 females,aged from 21 to 67 years old with an average of 48.1 +/- 1.3; there were 5 cases with type A, 6 cases with type B and 4 cases with type C,according to Denis-Weber classification. Ten patients were treated by through posterior-lateral incision,including 6 males and 4 females, aged from 23 to 64 years old with an average of 46.9 +/- 1.5; there were 3 cases with type A, 5 cases with type B and 2 cases with type C,according to Denis-Weber classification. Operation time, blood loss, length of incision, times of X-ray exposure and complications of two groups were recorded and compared, Baird-Jackson effective evaluation were applied for evaluate clinical outcomes.
RESULTSAll patients were followed up from 12 to 49 months with an average of 20.6 months. There were significant differences in operation time, blood loss, times of X-ray exposure and complications between two group (P < 0.05). While there was no obvious meaning in clinical outcomes between two groups (P > 0.05).
CONCLUSIONTreating posterior malleolar fractures with medial-extension type through posteromedial approach can expose and fix fracture under direct vision, has advantages of shorter operation time, less X-ray exposure and blood loss, is a good choice of surgical approach.
Adult ; Aged ; Ankle Fractures ; Bone Screws ; Female ; Fracture Fixation, Internal ; instrumentation ; Fractures, Bone ; surgery ; Humans ; Male ; Middle Aged ; Minimally Invasive Surgical Procedures ; methods ; Tarsal Bones ; injuries ; surgery
6.Changes of cytokine levels before and after anti-tuberculosis treatment
GUO Shan-shan ; LI Shu-tao ; YANG He ; KOU Bin
China Tropical Medicine 2022;22(09):806-
Abstract: Objective To analyze the changes of cytokine levels in patients with sensitive pulmonary tuberculosis and drug-resistant pulmonary tuberculosis before and after anti-tuberculosis treatment. Methods The clinical data of 213 pulmonary tuberculosis patients admitted to the Eighth Affiliated Hospital of Xinjiang Medical University from August 2019 to October 2020 were collected, and divided into a sensitive pulmonary tuberculosis group and a drug-resistant pulmonary tuberculosis group, of which 141 were in the sensitive group and 72 in the drug-resistant group , and the pro-inflammatory factors tumor necrosis factor-α (TNF-α), IL-6, IL-17, interferon-γ (IFN-γ) and anti-inflammatory factors IL-10 and IL-4 in plasma before treatment, 3 months and 6 months after treatment were compared. Results Compared with the healthy group, the levels of plasma IL-6 in the sensitive group and the resistant group were significantly increased, difference was statistically significant (P<0.01). The plasma levels of IFN-γ and IL-17 in the sensitive group were increased, and the difference was statistically significant (P<0.05). Compared with before treatment, the levels of IL-6 and IL-4 in the plasma of the sensitive group after 6 months of treatment were lower than those after 3 months of treatment, and the difference was statistically significant (P<0.05), and IFN-γ was significantly decreased (P<0.001). After 6 months of treatment, the IL-10 content was lower than that before treatment, and the difference was statistically significant (P<0.05), and the IFN-γ decreased significantly (P<0.000 1). The levels of IFN-γ at 3 months were higher than those in the resistant group, and the difference was statistically significant (P<0.01). After 6 months of treatment, there was no significant difference in the content of IFN-γ between the sensitive group and the resistant group. The effective rate of CT absorption was 70% in the sensitive group and only 43.33% in the resistant group at 3 months of treatment, and there was no significant difference in the effective rate between the two groups after 6 months of treatment. Conclusions Detection of pro-inflammatory cytokines and anti-inflammatory cytokines in plasma can provide reference for host-directed therapy of pulmonary tuberculosis. Understanding this important feature of cytokines on pathogen-host interactions can provide new insights into the study of virulence mechanisms and may provide new approaches for immune intervention in pulmonary tuberculosis.
7.Development and application of stem cells.
Chinese Medical Journal 2005;118(10):795-798
8.Study on the Breeding of Histidine Producing Mutant and Its Properties
Qing-Shan CHEN ; Wei-Guo ZHANG ;
Microbiology 1992;0(02):-
A L-histidine producing mutant was derived from Corynebacterium glutamicum HZ4221(TRA R DCP R AMT R histidase - )by means of mutagenesis with N-methy-N′-nitro- N-nitrosoguanidine(NTG).Contrast to original strain,the amount of histidine accumulation reached to a level of 5.31g/L in a medium containing 80g/Lglucose and 30g/L ammonium sulfate after cultured for 72 hours; the transketolase activity reduced to a degree of 15.7%.The utilization of the carbon sources,genetic stability,effect of metal ions were also been investigated in this paper.
10.Expression of chemokines and chemokine receptors in organ-graft rejection:recent progress
Liang XIAO ; Hong FU ; Guo-Shan DING ;
Academic Journal of Second Military Medical University 1985;0(06):-
Acute and chronic graft rejection are the major factors leading to graft non-function.There is an active expression of chemokines early after transplantation.They recruit T cells and antigen presenting cells selectively to the graft, leading to inflammatory reaction and finally to graft non-function.Accordingly,monitoring the expression status of chemokines and their receptors regularly may help to the diagnose rejection.To determine one or more chemokines or their receptors as the new targets for anti-rejection therapy will be of great clinical significance.This review focuses on the research progression in the above areas.