1.Progress of mitochondrial aldehyde dehydrogenase in cardioprotection
Chinese Pharmacological Bulletin 2009;25(12):1548-1551
Mitochondrial aldehyde dehydrogenase(ALDH2),one of the isoforms of aldehyde dehydrogenase,has multiple enzymatic functions including the activity of dehydrogenase and esterase.The metabolisms of ethanol,amino acids,biogenic amine,vitamin or steroid in the body produce various substances of aldehyde.With the help of co-factor NAD(P)+,ALDH2 can convert aldehydes into corresponding carboxylic acid,which plays a key role in reducing toxic effects of aldehydes on the body.It does not need co-factor when ALDH2 works as esterase.It can convert carboxylic ester or other acids into corresponding carboxylic acids or alcohols.Recently,it has been shown that the decrease of ALDH2 activity exacerbates multiple factors(such as ethanol,ischemia)-induced myocardial injury and accelerates the development of nitroglycerin tolerance.Therefore,the development of specific agonists of ALDH2 may provide a novel approach to the therapy and prevention of heart diseases.
2.STUDY OF SERUM TRAb IN AUTOIMMUNE THYROID DISEASE WITH ABC- ELISA
Journal of Xi'an Jiaotong University(Medical Sciences) 1982;0(01):-
In this paper the investigation of using a new method-ABC-ELISA in assay of Autoimmune Thyroid Disease are presented. The sensitivity of ABC-ELISA is compared with that of standard ELISA; Its reliability is proven by the methods of detecting TSAb with FRTL-5. TRAb is detected by ABC-ELISA in 91% of untreated Graves'. TRAb is detected by Standard ELISA in 70% of untreated Graves'. The results of ABC-ELISA in 26 untreated Graves' are equal to that of the method of detecting TSAb with FRTL-5. Therefore, we consider that ABC-ELISA is a sensitive, reproducible, convenient method applicable to clinical practice.
4.Strategies and techniques for surgical treatment of inflammatory bowel disease
Chinese Journal of Digestive Surgery 2014;13(8):591-595
Surgical treatment is an important method for the treatment of inflammatory bowel disease (IBD) when it is complicated with other intestinal diseases or medical treatment fails.The appropriate timing of surgery can reduce the incidence of postoperative complications and is the key factor for the success of treatment.Excessive emphasis on medication and blindly extending the course of medication in case of invalidation will make patients lose the best opportunity of surgery.Surgeons should master different surgical techniques of acute and selective surgeries for IBD.Multi-disciplinary treatment mode is recommended.Adjustment of the preoperative medication,improvement of the nutritional status and the overall condition of the patients are necessary when surgery is unavoidable.
5.Relationship between Cytosol Estrogen Receptor Level in Uterine Leiomyoma and Sex Steroid Level in Plasma, Leiomyoma and Myometrium
Journal of Third Military Medical University 1983;0(03):-
This study was designed to evaluate the effect of estrogen to the growth of leiomyoma and the mechanism of testosterone propionate action on leiomy-oma.The levels of estrogen receptor in uterine tissud and those of estradiol and progesterone in uterine tissue and plasma were determined in 47 women with leiomyoma.The levels of estrogen receptor and estradiol in leiomyomatous tissues were 37.6?4.0 fmol/mg protein and 401.7?92.6 pg/g tissue,respectively.Both of them were higher than the corresponding levels in normal uterine tissues (P
6.Study on Formulation Process of Tangkening Granule
Journal of Zhejiang Chinese Medical University 2006;0(06):-
[Objective]To ascertain the best formulation process of Tangkening Granule. [Method]By determinating hygroscopicity, granulation and dissolubility, the appropriate recipient and its formula are selected. [Results]The best excipient is 1∶0.5. The made granules have low hygroscopicity and high granulation and high dissolubility. And its critical relative humidity is 70%. [Conclusion]The experimental results provide the basis of the ascertainment of formulation process and the control of product inviroment of Tangkening Granule.
7. Expression of NF-κB subunits P50 and c-Rel protein in primary cortical neurons after oxygen glucose deprivation/reoxygenation
Academic Journal of Second Military Medical University 2010;29(11):1333-1336
Objective: To investigate the expression of nuclear factor-κB (NF-κB) subunits P50 and c-Rel protein in primary cortical neurons of Wistar rats at different time points of oxygen glucose deprivation/ reoxygenation(OGD/R). Methods: The neurons dissociated from the cortex of the neonatal rats were primary cultured and were identified by immunocytochemistry. OGD/R model was established. The study was divided into 6 groups according to different processing methods,including normal group,OGD 4 h treated,OGD 4 h/R 2 h treated,OGD 4 h/R 6 h treated,OGD 4 h/R 12 h treated and OGD 4 h/R 24 h treated groups. The expression of NF-κB P50 and c-Rel protein in neurons was examined by immunocytochemistry method and Western blotting. Results: (1) Immunocytochemistry detection targeting neuron specific enolase (NSE) and beta-III tubulin confirmed that the cultured cells were neurons. (2) The expression of NF-κB P50 protein was significantly higher in OGD 4 h group than in control group(P<0.05); the expression continued to increase in OGD 4 h/R 2 h andOGD 4 h/R 6 h groups, and reached its peak 6 h after reoxygenation (P<0.01),then began to decrease,but the expression in OGD 4 h/R 12 h group was significantly different from that of the control group (P<0.05); there was no significant difference between OGD 4 h/R 24 h group and control group. (3) The expression of NF-κB c-Rel protein was similar between OGD 4 h group and the control group; the expression increased in OGD 4 h/R 2 h and OGD 4 h/R 12 h groups and reached its peak 12 h after reoxygenation(P<0.01),and did not recover to the normal level in OGD 4 h/ R 24 h group (P<0.05). Conclusion: Oxygen glucose deprivation/reoxygenation can activate NF-κB subunits P50 and c-Rel in the primary cortical neurons in rats in a time-associated manner.
8.Expression of promyelocytic leukemia gene in peripheral blood lymphocytes from patients with psoriasis vulgaris
Na LI ; Zulian LAN ; Yanling HE
Chinese Journal of Dermatology 2012;(11):796-798
Objective To detect the expression of promyelocytic leukemia(PML)gene in peripheral blood lymphocytes from patients with psoriasis vulgaris,and to investigate the relationship between PML gene and psoriasis.Methods This study included 50 patients with vulgaris psoriasis who were aged between 18 and 65 years and had never received systemic treatment,as well as 45 healthy controls.Peripheral blood samples were collected from these subjects,and lymphocytes were separated by density-gradient technique.Then,RNA was extracted from the lymphocytes by using RNAprep pure blood kit followed by real time fluorescence-based quantitative reverse transcription-PCR for the detection of PML mRNA expression.Flow cytometry was performed to quantify the expression of PML protein in the lymphocytes.Independent samples t test was carried out to compare the differences in PML expression between the patients and controls.Results The relative quantity (RQ)of PML mRNA was 14.98 ± 3.64 in peripheral blood lymphocytes from the patients,significantly higher than that in the healthy controls(5.50 ± 1.10,t =16.79,P < 0.05).Similarly,a significant increment was observed in the fluorescence intensity of PML protein in peripheral blood lymphocytes from the patients compared with the healthy controls(3.13 ± 0.27 vs.2.43 ± 0.21,t =6.93,P < 0.05).Conclusions PML is overexpressed at the protein and mRNA levels in peripheral blood lymphocytes from patients with psoriasis vulgaris,hinting that PML may play a certain role in the development of psoriasis.
9.Target points: a discussion on acupuncture treatment of primary trigeminal neuralgia.
Lan HE ; Dong LI ; Yingsheng XU
Journal of Integrative Medicine 2012;10(9):961-5
In this paper, issues of acupuncture using target points and depth of needling were discussed based on the theory of traditional Chinese medicine acupoints and combined with anatomical and neurological research of Western medicine. The theoretical evidence of acupuncture on nerve foramen and ganglion and the reasons for being nonstandard operating on acupoints were analyzed. This study summarized the method of using acupuncture at Xiaguan (ST7), Cuanzhu (BL2), Sibai (ST2) and Jiachengjiang acupoints to align with the spheno-palatine ganglion and additional nerve foramen (supraorbital, infraorbital and mental foramina) to treat primary trigeminal neuralgia. This study adhered to the Standards for Reporting Interventions in Clinical Trials of Acupuncture and helped in development of study standardization for acupuncture processes. The authors hoped that should help in significantly diminishing risk and improving therapeutic efficacy in clinic.
10.Quantitative determination of bosentan by proton nuclear magnetic resonance with internal standard method.
Caiyu ZHANG ; Na ZHANG ; Lan HE
Acta Pharmaceutica Sinica 2014;49(2):249-51
The study aims to establish a quantitative nuclear magnetic resonance (QNMR) method for the determination of the absolute content of bosentan. Proton nuclear magnetic resonance spectroscopy [1H NMR] spectra were obtained in CDCl3 with the internal standard dimethyl terephthalate and zg30 pulse sequence by using a Bruker AVANCE II 400 spectrometer. The content of bosentan is determined with QNMR in comparison with the result obtained by mass balance method. The result is 96.25% by QNMR and 96.54% by mass balance method. A rapid and accurate QNMR method has been established for the quantitative determination of the absolute content of bosentan. The study provides a new way for the quality control and calibration of a new reference standard material, it could be the complementary with the mass balance method for the assay of standard reference.