2.Autophagy and apoptosis: rivals or mates?
Chinese Journal of Cancer 2013;32(3):103-105
Autophagy, a cellular process of "self-eating" by which intracellular components are degraded within the lysosome, is an evolutionarily conserved response to various stresses. Autophagy is associated with numerous patho-physiological conditions, and dysregulation of autophagy contributes to the pathogenesis of a variety of human diseases including cancer. Depending on context, activation of autophagy may promote either cell survival or death, two major events that determine pathological process of many illnesses. Importantly, the activity of autophagy is often associated with apoptosis, another critical cellular process determining cellular fate. A better understanding of biology of autophagy and its implication in human health and disorder, as well as the relationship between autophagy and apoptosis, has the potential of facilitating the development of autophagy-based therapeutic interventions for human diseases such as cancer.
Apoptosis
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Autophagy
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Cell Death
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Cell Survival
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Humans
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Neoplasms
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pathology
3.Study of intelligence and psychomotor function in children aged 6 - 15 years and born pre and post universal salt iodization in Henan province in 2009
He-ming, ZHENG ; Yu, WANG ; Jin, YANG
Chinese Journal of Endemiology 2010;29(5):553-555
Objective Investigation and analysis of intelligence and psychomotor function in children born after implementingt universal salt iodization(USI). Methods Historical serious illness areas of water iodine below 10μg/L were selected as study sites, water iodine in 50 - 100 μg/L in the historical non-endemic areas were as control points in Henan, 2008. Cluster sampling was used to select children aged 6 - 15 years as observing subjects,IQ were measured with CRT- Man Test(CRT-C2). A "Tianjin Medical psychomotor test battery" (JPB) was carry out to test psychomotor function. Results In IDD regions 230 children were surveyed post-USI and 1284 children preUSI. The IQs post and pre USI were 99.3 and 99.9, respectively, and the proportion of IQ ≤69 were 2.17%(6/230) and 2.80%(36/1284), respectively. In non-IDD regions 650 children were surveyed post-USI and 2079children pre-USI. The IQs post and pre USI were 95.3 and 93.8, respectively, and the proportion of IQ ≤ 69 were 2.31%(15/650) and 3.37%(70/2079), respectively. In IDD regions, the abnormal rate of T scores and damage index post USI were 3.6%(2/56), 5.3%(3/56), respectively, significantly lower than pre USI [18.1%(29/160),18.1%(29/160), x2 = 7.54, 6.86, all P < 0.01]. Conclusions USI could increase the IQs of children and decrease the positive rate of JPB, and significantly improve the quality of whole nation and persistently eliminating IDD.
4.A high-performance liquid chromatography method for detccting indomethacin in human plasma
Ming JIN ; He HUANG ; Delong YANG
Chinese Journal of Forensic Medicine 1987;0(03):-
For the purpose of expanding the analysis scope of medicines,a RPHPLC assay procedure has been established for quantitative analysis of indomethacin in human plasma.Analytical column was YWG C18(?4 6 mm?200mm).Mobile phase was methanol water acetic acid solution(67∶33∶0 1)(v/v) and wavelength of detector was 254nm.The linear relationship,precision,method of extraction and recovery were comparatively investigated by standard blank human plasma spiked with indomethacin.Indomethacin leved in the blood of the healthy volunteers was detected by using this method.The linear range of the method was 0 1~5 0?g?ml -1 .The calibration curve was linear (?=0 9995). The detection limit was 0 02?g?ml -1 (S/N≥3) and the recovery of indomethacin in human blood was between 97 5%~104 2%. Intra and inter day prccision of the mothod were(1 1?0 2)%(n=4) and(2 7?0 6)%(n=4)respectively.The CV% were no more than 3 0% (n=4).The method shows a high sensitivity,precision,fast and excellent selectivity.Thus it is suitable for investigation of the indomethacin in human blood and its toxicological analysis as well as the pharmacokinetic study.
5.The mechanisms of drug resistance in prostate cancer.
Yang HE ; Yang-guang LIU ; Shan CEN ; Jin-ming ZHOU
Acta Pharmaceutica Sinica 2015;50(7):797-801
Drug therapy is one of the efficient methods for prostate cancer treatment. However, drug resistance greatly hindered the treatment of prostate cancer patients. Herein, the mechanisms of drug resistance in prostate cancer have been exhaustively reviewed, and that can provide an alternative strategy and new targets for anti-prostate cancer therapy.
Drug Resistance, Neoplasm
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Humans
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Male
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Prostatic Neoplasms
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drug therapy
6.Reticulate pigmented anomaly of the flexures: a family survey and mutation analysis of KRT5 gene
Jin JI ; Ming LI ; Meiling LAI ; Chengrang LI ; Lijia YANG
Chinese Journal of Dermatology 2012;45(4):272-274
ObjectiveTo observe clinical features and identify causative genes of reticulate pigmented anomaly of the flexures in a pedigree.Methods A survey was conducted in a pedigree with reticulate pigmented anomaly of the flexures.Clinical manifestations were recorded in details for each patient in this pedigree.Tissue specimen was obtained from the proband for histopathological examination and ultrastructural observation.Mutation scanning was carried out by PCR and direct sequencing in 3 patients in the family.ResultsAll the patients in this pedigree presented with reticular pigmentation of the flexures and idiopathic guttate hypomelanosis on the abdomen and back.Histopathological and ultrastructural study revealed epidermal hyperpigmentation with an increase in melanin content in epidermal keratinocytes but no changes in the number of melanocytes.No mutation was found in the KRT5 gene in this family.ConclusionsThis is the first case report of reticulate pigmented anomaly of the flexures associated with idiopathic guttate hypomelanosis.No mutation is identified in the KRT5 gene of patients with reticulate pigmented anomaly of the flexures in this family,indicating the existence of other causative genes.
7.The feasibility of transfection of Sonic hedgehog gene into bone marrow mesenchymal stem cells
Jundong LIU ; Jinfu YANG ; Jianhua TANG ; Ming WU ; Jin SHI
Journal of Chinese Physician 2012;(11):1451-1454
Objective To evaluate the feasibility of transfection of Sonic hedgehog gene (SHH)into bone marrow mesenchymal stem cells(BMMSC).Methods After the SHH gene was transfected into BMMSC by electroporation apparatus,the transfection rate was evaluated by fluorescence inverted microscope.The growth curves of untransfected and transfected BMMSC were drawn,respectively,to observe the influence of transfection on cells.The expression of SHH gene in the BMMSC was detected by PCR,RT-PCR,Western-blot analyses.Results Through fluorescence inverted microscope,the observed transfection rate was appropriately 30%,PCR showed a obvious increase of SHH expression in transfected cells than that in untransfected cells,and it is quantified by qPCR for appropriately 7 times.Western-blot further demonstrated that the SHH protein expression in transfected cells had a distinct increase.However,it was observed that the exponential phase of BMMSCSHH growth curve delayed.The growth curves of both overlap 12 days after transfection.Conclusions This electroporation method can transfect exogenous SHH gene into BMMSC sufficiently with the effective protein expression in BMMSCSHH.It is the foundation of further research of genetic therapy for ischemic heart disease.
8.Study on Bilingual Teaching of Microbiology in Western College of China
Ming-Guo JIANG ; Li-Fang YANG ; Jin-Cai XUAN ;
Microbiology 1992;0(06):-
Bilingual teaching is one of education reform in China.The essay analyzed the necessity of bilingual teaching and clarified the reason why it can procced in microbiology.Search after the way in microbiology course according to the character of college in western China.The practice accumulated experience for bilingual teaching.
9.Effect of endomorphin on colonic electromyography activity in endomorphin cathartic colon rats
Xiang YAN ; Jin-Yang WANG ; Yong-Ming LIU ; Jing WANG ;
Chinese Journal of Geriatrics 2000;0(04):-
Objective To determine the effect of endomorphin (EM) on colonic electromyography activity and investigate the pathogenesis of slow transit constipation (STC). Methods An experimental rat model of slow transit constipation was constructed by contract laxatives mixed with the feed. The changes of colonic electromyography and reaction to endomorphin 1 and endomorphin 2 were examined. Results Compared with the control group, the frequency and amplitude of slow wave in cathartic colon rats were decreased significantly. Endomorphin 1 and endomorphin 2 significantly decreased the amplitudes of slow wave, but did not change the frequencies of slow wave. The effect of endomorphin 1 was more pronounced than that of endomorphin 2, which could be reversed by the morphine antagonist Naloxone in concentration-dependent manner. Endomorphin could not block the stimulating effect of acetylcholine. Conclusions Endomorphin can influence the colonic electromyography activity and intestine motility of cathartic colon rats, and may be involved in the pathologic mechanism of slow transit constipation.
10.Analysis of postoperative complications after ventriculo-peritoneal shunt in children
lian-ping, SUN ; hui-ming, JIN ; bo, YANG
Journal of Shanghai Jiaotong University(Medical Science) 2006;0(03):-
Objective To analyze the curative effects and complications of ventriculo-peritoneal shunt in treating hydrocephalus caused by different diseases in children. Methods The data of 289 children with hydrocephalus who were performed ventriculo-peritoneal shunt were examined and the incidence rate of complications was analyzed. Results Thirty-seven incidences of complications occurred in 24 patients with the total incidence rate of 12.46%.There was obstruction of proximate tube in five cases,distal end in two cases,with the obstruction rate of 2.42%.Postoperative infection happened in nine cases(3.11%).Bacterial culture was positive in three cases,two of which were Staphylococcus epidermidis and Bacillus coli in the other one.Negative results were found in six patients for the bacterial culture.Subdural hematoma occured in one case,and tube break after injury in two cases.Slit ventricle syndrome broke out seven times in three cases,leakage of cerebrospinal fluid in two,exposure of pumps in three,and subcutaneous hydrops in two.Four cases(1.38%)were dead from infection. Conclusion Ventriculo-peritoneal shunt is preferred for hydrocephalus in children if the complications are well prevented and controlled.