1.Effect of allicin on the expression of Bcl-2 and Bax protein in LM-8 cells
Yu HE ; Shuhua YANG ; Gang ZHOU
Chinese Journal of Tissue Engineering Research 2008;12(15):2997-3000
BACKGROUND: Allicin has been proved to influence the proliferation and apoptosis of LM-8 cells.OBJECTIVE: To study the effects of allicin on the expression of apoptosis protein Bcl-2 and Bax in C3H mouse osteosarcoma cell line LM-8, and the correlation of the morphological changes of LM-8 cells with the changes of Bcl-2 and Bax.DESIGN: Randomized grouping, non-blind, cell level, in vitro study.SETTING: The experiment was carded out from September 2006 to May 2007 at the Center Laboratory of Union Hospital,Tongji Medical College, Huazhong University of Science & Technology.MATERIALS: Osteosarcoma cell line LM-8 was purchased from the Animal Center of the Fourth Military Medical University of Chinese PLA. Allicin presented by Wuhan Huihai Co., was a sulphide isolated from garlic corn. Cell Counting Kit-8 (CCK-8) from Dojindo Laboratories; Bcl-2 antibody, Bax antibody and SP immunohistochemistry kit from Fuzhou Maixin Biotech Co.METHODS: LM-8 cells were cultured in RPMI 1640 culture medium, then cell climbing films were made, and SP immunocyte-histochemistry was used to detect the expression of Bcl-2 and Bax protein. Inverted microscope was performed to observe the morphologic changes of LM-8 cells before and after adding with 5.0, 10.0 and 15.0 mg/L allicin. Serial subcultivated LM-8 cells were adjusted to 7.5× 107 L-1 in concentration, added to 96-pore culture plate, and treated with allicin at a serial concentration of 1.0, 5.0, 10.0 and 15.0 mg/L. Additionally blank culture medium pores without cells and allicin and pores without allicin were taken as control groups. The 96-pore culture plate was maintained for 24, 48 and 72 hours, and then fetched. CCK-8 was added to determine the optical density value. The inhibition rate of LM-8 cell growth was also calculated. LM-8 cells were treated with different concentrations of allicin (5.0, 10.0 and 15.0 rag/L) for 24, 48 and72 hours, and then we carried out an apoptosis analysis by flow cytometry.MAIN OUTCOME MEASURES: Expression of Bcl-2 and Bax protein in LM-8 cells; cell morphous, cell proliferation,and cell apoptosis.RESULTS: ①Expression of Bcl-2 and Bax protein: Allicin could lower the expression of Bcl-2 protein and enhance the expression of Bax. The positive expression of Bcl-2, Bax and Bcl-2/Bax expression all showed significant differences compared with control group (P < 0.01).②LM-8 cell morphous: LM-8 Cells treated with allicin presented typical apoptosis changes under microscope.③LM-8 cell proliferation: Allicin could inhibit the growth of osteosarcoma cell line LM-8, when concentration of allicin added from 1.0 mg/L to 15.0 mg/L, the inhibition rate of LM-8 cells at 72 hours increased from (23.87±3.26)% to (58.32±5.38)%, and 50% inhibiting concentration was 11.09 mg/L.④LM-8 cell apoptosis: After 72 hours with treatment of allicin of 5.0, 10.0 and 15.0 mg/L in concentration, apoptosis rate of LM-8 cells revealed a dose-dependent relationship (P < 0.05).CONCLUSION: ①Allicin can inhibit the proliferation of LM-8 cells in a dose-time-dependent manner.②Allicin can induce the apoptosis of LM-8 cells in a dose-dependent manner.③Allicin can inhibit LM-8 cell proliferation and induce LM-8 cell apoptosis, which is related to down-regulate Bcl-2 protein expression and up-regulate Bax protein expression.
2.Problems in the medical professional English teaching and the probable way to resolve
Chinese Journal of Medical Education Research 2005;0(05):-
This article stated the status,major problems and methods in medical professional English teaching.The effective ways might be by means of training teachers,writing suitable textbooks,providing professional English speaking environment and improving model of teaching.
3.Detection of hepatitis B virus YMDD variants using a matrix-assisted laser desorption time of flight mass spectrometric analysis
Wenhui YU ; Xiaomei ZHOU ; Daqiao ZHOU ; Jinsong HE ; Shunmin LI
Journal of Chinese Physician 2008;10(12):1591-1595
Objective To investigate the value of detecting hepatitis B virus (HBV) YMDD variants by matrix-assisted laser de-sorption time of flight mass spectrometry (MALDI-TOF MS). Methods The assay is based on polymerase chain reaction (PCR) amplifica-tion and mass measurement of oligonucleotides containing sites of mutation of the YMDD motif. Result The MALDI-TOF MS-based genoty-ping assay was sufficiently sensitive to detect as few as 100 copies of HBV genome per milliliter of serum, and this method had superior spe-cificity for determining mixtures of wild-type and variant viruses. When sera of 40 patients were analyzed, the MALDI-TOF MS-based assay correctly identified known viral variants and additional viral quasi-species not detected by previous methods, as well as their'relative abun-dance. Conclusion The sensitivity, specificity and amenability to high-throughput analysis make MALDI-TOF MS-based assay suitable for mass screening of HBV infected patients who are receiving lamivudine.
4.Diagnostic Evaluation of X-ray and US Manifestations of Upper Digestive Tract Obstruction in Infant(A Report of 20 Cases)
Mingli HE ; Shaocong YU ; Yan ZHOU ; Yushu CHENG ; Xiaoling ZHOU
Journal of Practical Radiology 1992;0(11):-
Objective To study the evaluation between the X-ray findings and ultrasound(US) manifestations of upper digestiveobstruction in infancy.Methods X-ray and US manifestations of 20 cases of infant with upper digestive obstruction proved by operationwere analysed respectively.Results In 20 cases,12 patients had pyloric stenosis,3 duodenal stresia,3 midgut malformation,2 hiatalhernia.Pyloric stenosis was diagnosed by X-ray in 11 cases,by US in 9,misdiagnosed by US in 1 case.Duodenal stresia was observed by X-ray and US in 2 cases separately,not observed by X-ray and US in 1 case separately.Midgut malformation was demonstrated by X-ray and US in 1 case separately,not demonstrated in 2 cases separately.Hiatal hernia was found by X-ray in 2 cases,misdiagnosed by US in 2 cases.Conclusion The two methods can't substitute with each other but complement.X-ray is better than US in the diagnosis of pyloric stenosis and hiatal hernia.US is better than X-ray in the diagnosis of midgut malformation.
5.Brief discussion on "Sanli acupoint for du-fu diseases".
Li ZHOU ; Quan HE ; Yu XIN ; Hongxing ZHANG
Chinese Acupuncture & Moxibustion 2015;35(7):723-726
The connotations of "du-fu" and "Sanli" in "Sanli acupoint for du-fu diseases" are discussed in this paper, which can provide theoretical foundation for the clinical application of "Sanli acupoint for du-fu diseases". Based on ancient literature combined with related theories in the Huangdi Neijing (Yellow Emperor's Canon of Internal Classic), a deep discussion is performed through the relationship between Zusanli (ST 36) and stomach, indication and mechanism of Zusanli (ST 36) on du-fu diseases and comparison between Zusanli (ST 36) and Shousanli (LI 10). It is believed that "du" should be pronounced as "dŭ", meaning stomach, and it indicates that Zusanli (ST 36) is closely related to stomach and spleen when it is used for du-fu diseases; "fu" means abdomen area, including liver-gallbladder, spleen, stomach-intestine, kidney, uterus, triple energizer; "sanli' means exclusively the acupoint of Zusanli (ST 36).
Abdominal Cavity
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anatomy & histology
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Acupuncture Points
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Acupuncture Therapy
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history
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Books
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history
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China
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History, Ancient
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Humans
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Medicine in Literature
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Meridians
6.Methodology of DNA staining by Azure A.
Jian-yun ZHOU ; Song HE ; Lan YU ; Yan GUO
Chinese Journal of Pathology 2006;35(9):568-569
Azure Stains
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chemistry
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DNA, Neoplasm
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analysis
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chemistry
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Humans
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Rosaniline Dyes
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chemistry
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Staining and Labeling
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economics
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methods
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Stomach Neoplasms
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genetics
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pathology
7.Effects of activation of ALDH2 by ethanol in testis injury of type 2 diabetic rats
Huihui LI ; Ying YU ; Wenxin HE ; Yanmei ZHOU ; Jixia CHAI
Chinese Pharmacological Bulletin 2015;(7):962-966
Aim To observe the effects of activation of aldehyde dehydrogenase 2 ( ALDH2 ) by ethanol on testis injury of type 2 diabetic rats. Methods Type 2 diabetic rats model were established by high-fat diet combined with low-dose streptozotocin ( STZ ) injec-tions. After the success of modeling, the rats were ran-domly divided into 3 groups ( n =6 ): normal control group (NC), type 2 diabetes group (T2DM) and eth-anol+type 2 diabetes group (EtOH+T2DM). Rats of EtOH + T2DM were treated with low-dose ethanol, then rats of NC and T2 DM were given normal diet for 8 weeks. After 8 weeks, the levels of the fasting blood glucose ( FBG ) , glycosylated hemoglobin ( HbA1 c ) and testosterone were tested, and the ratio of testis weight to body weight ( TW/BW ) was calculated. Morphological changes of testis tissue were observed by optical microscope. The levels of ALDH2 mRNA and transforming growth factorβ1 ( TGF-β1 ) mRNA in tes-tis tissue were measured. The expression of TGF-β1 in testis tissue was observed by immunohistochemical stai-ning, then the positive rate of TGF-β1 was calculated. Results Compared with NC, the levels of FBG, HbA1 c and TW/BW increased significantly and the level of testosterone decreased significantly in T2DM. The morphological observation showed that some semi-niferous tubules atrophied, spermatogenic cells de-creased and arrangemented loosely, Leydig cells de-creased in testicular interstitial. The level of ALDH2 mRNA in testis tissue decreased significantly, and the level of TGF-β1 mRNA and the positive rate of TGF-β1 in testis tissue increased significantly. However, compared with T2DM, the levels of FBG, HbA1c and TW/BW decreased, and the level of testosterone in-creased and the damage of testis tissue was attenuated in EtOH+T2DM. The level of ALDH2 mRNA in testis tissue increased significantly, and the level TGF-β1 mRNA and the positive rate of TGF-β1 in testis tissue decreased significantly. Conclusion Activating AL-DH2 can protect testis in type 2 diabetic rats, which may be related to the downregulation of TGF-β1 ex-pression.
8.Clinical effect of transurethral cystitis glandularis electrocision combined with treating the diseases under bladder outlet in female
Yu QIAN ; Yang JIANG ; Enpu ZHOU ; He JIANG ; Dongwei GONG
Chinese Journal of Postgraduates of Medicine 2015;38(5):336-338
Objective To discuss the clinical effect of transurethral cystitis glandularis electrocision combined with treating the diseases under bladder outlet in female.Methods One hundred and two female cases of cystitis glandularis who received transurethral electrical resection of the bladder mucosa combined with treating the diseases under bladder outlet were selected as experimental group,and another 78 female cases were selected as control group,who only received transurethral electrical resection of the bladder mucosa.The visual analogue score (VAS) was observed before and after a 12-week treatment,and the efficacy was evaluated by analysis of non parameter RIDIT.Results The operation time in experimental group and control group were 15-40 (26 ± 13) min and 8-19 (13 ± 5) min,respectively,and there was significant difference between two groups (P < 0.05).Two groups cases urinated smoothly after the removal of catheter,without the occurrences of urinary fistula and incontinence.During the 12-weeks of follow-up,44 cases were cured,31 cases improved,15 cases were effective and 12 cases unimproved in experimental group; 26 cases were cured,21 cases improved,16 cases were effective and 15 cases unimproved in control group.There was significant difference between two groups (R =0.576,95% CI0.519-0.633,P< 0.05).Conclusion Although the operation time is lengthened by transurethral cystitis glandularis electrocision combined with treating the diseases under bladder outlet in female,this method obviously improves curative effect.
9.Effect of apoptosis inducing factor on promoting apoptosis of hypertrophic cardiomyocytes induced by hypoxia/reoxygenation
Xiaobo ZHOU ; Zuoyun HE ; Xuejun YU ; Jun QIN
Medical Journal of Chinese People's Liberation Army 1982;0(03):-
Objective To evaluate the effect and significance of apoptosis inducing factor (AIF) on promoting apoptosis of hypertrophic cardiomyocytes induced by hypoxia/reoxygenation. Methods Cardiomyocytes of neonatal Kunming strain rats were isolated and cultured. Cardiomyocyte hypertrophy was induced by angiotensinⅡ (0.1?mol/L for 12h), and the cells were cultured under the condition of hypoxia and reoxygenation. The cultured cardiomyocytes were then divided into seven groups: hypertrophic cardiomyocyte control (HC) group, hypoxia for 8h (H8h) group, hypoxia for 12h (H12h) group, hypoxia for 8h and reperfusion for 4h (H8h/R) group, hypoxia for 12h and reperfusion for 4h (H12h/R) group, hypoxia for 12h+siRNA transfection (H12h+siRNA) group, and hypoxia for 12h and reperfusion for 4h+siRNA transfection (H12h/R+siRNA) group. Cardiomyocytes were transfected with AIF siRNA. Apoptosis was detected with Hoechst 33258 staining. The AIF mRNA and protein expressions were detected by RT-PCR and Western blotting. Results The levels of AIF mRNA and protein expression were significantly higher in H8h group and H12h group (mRNA: 0.52?0.04, 0.85?0.10, respectively; protein: 2.07?0.15, 3.12?0.19, respectively) compared with that in HC group (mRNA: 0.29?0.08; protein: 1.00?0.04, P0.05). The percentage of apoptosis in H12h/R+siRNA group (24.90%?3.90%) was significant higher than that in H12h/R group (14.50%?1.32%, P
10.Practice of Medication Closed-loop Management Based on Electronic Medical Records in Huangshi Central Hospital
Yulai WANG ; Xiangdong YU ; Lin GAN ; Huadong HE ; Xiaoqing ZHOU
Herald of Medicine 2017;36(6):711-713
Objective To explore the medication closed-loop management of huangshi central hospital based on electronic medical records.Methods Diversified pharmaceutical information platform was constructed.The full coverage of all aspects of medication information,such as ordering/prescribing,transcribing,distributing,preparing,dispensing,administering,documenting,and monitoring was realized.Results The medication management and use had no information gap,and bias could be controlled to form a closed-loop management.Conclusion Application of the new information technology in the field of pharmaceutical care can improve work efficiency,reduce medication errors,broaden the vision of clinical pharmacists and scope of work,and improve the overall level of pharmaceutical care.