1.Mechanism of DJ -1 against oxidative stress and its roles in the pathogenesis of age -related macular degeneration and Fuchs endothelial corneal dystrophy
Ya-Lan, ZHOU ; Jun, ZENG ; Bai-Hua, CHEN
International Eye Science 2016;16(8):1465-1468
?DJ-1 has been reported to act as aredox-activated chaperone and sensor of oxidative stress participated in a variety of activities in cellular, playing an important role in resisting oxidative stress, regulating signaling pathways and gene transcription, and maintaining mitochondria dynamic balance. DJ -1 is closely related to the occurrence and development of various diseases. Recently, the effect of DJ-1 in eye diseases has drawn more attention, and researchers have found its significant role of resistance to oxidative stress in the pathogenesis of Fuchs endothelial corneal dystrophy ( FECD) and age-related macular degeneration ( AMD ) .This review will state the mechanism of DJ-1 against oxidative stress and its role in the development of eye diseases.
2.Research progress on musk secretion mechanism of forest musk deer.
Hang JIE ; Xiao-Lan FENG ; Gui-Jun ZHAO ; De-Jun ZENG ; Cheng-Lu ZHANG ; Qiang CHEN
China Journal of Chinese Materia Medica 2014;39(23):4522-4525
Forest musk deer (Moschus berezovskii), a rare wild medicinal animal, is listed under the category of the state key protected wildlife list of China. Musk, secreted by the musk glands, is with high economic and medicinal value and used as precious traditional medicine in China. In order to meet the needs of musk in Chinese traditional medicine, forest musk deer farming was conducted in 1950s, but the research progress on musk secretion mechanism was slow. Therefore, by reviewing the histological and anatomical structure of forest musk deer musk gland, the relationship between sex hormones and the musk secretion process, and the molecular mechanism of the musk secretion, the existing problems in investigating the musk secretion mechanism were analyzed and the development trends in this field were also discussed, in order to provide a reference for further studies on the musk secretion mechanism and improve musk production of forest musk deer.
Animals
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Deer
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metabolism
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Exocrine Glands
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anatomy & histology
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chemistry
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secretion
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Fatty Acids, Monounsaturated
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chemistry
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metabolism
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Male
3.Analysis of infective status of Clonorchis sinensis in Jiangxi Province
Weiming LAN ; Weisheng JIANG ; Kunjiao DAI ; Chunqin HANG ; Shuying XIE ; Jun GE ; Zhaojun LI ; Xiaojun ZENG
Chinese Journal of Schistosomiasis Control 2017;29(1):44-47
Objective To understand the current prevalence of clonorchiasis in Jiangxi Province. Methods A survey was performed according to the scheme of the 3rd Principal Human Parasites of Jiangxi Province. Based on the ecological regions,a stratified cluster sampling method was applied by the economic and geographic situation. In rural areas,the investigation of C. si?nensis was carried out together with the soil?transmitted helminths investigation,and in the urban areas,the random cluster sam?pling method was applied for the C. sinensis investigation. There were 92 survey sites from 32 counties. The eggs of C. sinensis in stool were examined by Kato?Katz technique,and health knowledge was also investigated by questionnaires in some people at the same time. Results A total of 23 606 sample residents were investigated,and 138 were found infected with C. sinensis, with the infection rate of 0.58%. Light infection was found in most of them. Totally 124 C. sinensis infected persons focused in Xinfeng County,and only a few of infected people scattered in the other counties. In Xinfeng County,851 residents were investi?gated. Among them,the infected people were found in all the age groups except the 0?year age group. The highest infection rate appeared in the 70? years group(24.00%). The male infection rate was 20.29%,which was higher than that of the female (6.25%),showing a statistically significant difference(P<0.01). The infection rate was highest in the population who received high school or technical secondary school education(31.48%). For the occupation distribution,the infection rate was highest in public officers(39.39%). The questionnaire survey showed that the infection rate in the populations in Xinfeng County who had the history of eating raw fish or raw shrimp was 33.15%. Conclusions The distribution of C. sinensis infection presents a region?al aggregation in Xinfeng County,but in other areas,the distribution is sporadic. It is necessary to continue to carry out the para?sitic disease screening,and in Xinfeng County,it is necessary to strengthen the comprehensive prevention and control interven?tion.
4.Effects of five kilometers walking at 3200 m high altitude on acute mountain sickness
Guozhu CHEN ; Jun QIN ; Jie YU ; Wenyun GUO ; Junqing DONG ; Wei LU ; Ying ZENG ; Lan HUANG
Chongqing Medicine 2013;(30):3593-3595,3598
Objective To evaluate the effect of moderate activities at moderate high altitude on acute mountain sickness (AMS) incidence .Methods Ninety-one healthy sea level residents traveled from sea level (345 m) to high altitude city (3200 m) ,by train within 48-hour .They walked 5 kilometers after 2-night stayed ,Lake Louis Score (LLS) Questionnaires ,blood pressure(BP) and oxygen saturation (SpO2 ) was administered before and after walking .Results Seven subjects were excluded because of incomplete data .The incidence of AMS before and after exercise was 20 .24% (n=17/84) and 11 .90% (n=10/84) respectively(P>0 .05) .Af-ter a 5 kilometer walking ,the heart rate increased from (73 .83 ± 9 .96)bpm to(84 .31 ± 12 .55)bpm (P<0 .05) ,Systolic BP and SpO2 level decreased from(128 .86 ± 13 .93)mm Hg to (124 .48 ± 13 .13)mm Hg ,(92 .80 ± 2 .25)% to (89 .94 ± 2 .45)% (P<0 .05) .Headache symptom improved after walking (P<0 .05) .Smoking was negative correlate with LLS score before and after ex-ercise(P<0 .05) .There is no relation between SpO2 and LLS scores .Conclusion Walking five kilometers at 3200 m improve head-ache symptom and tend to decrease AMS .
5.In vitro screening and in vivo identification of rat IκBα-siRNA
Rui, ZENG ; Yu-Qing, LAN ; Hai-Jun, GONG ; Chi, ZHANG ; Jin-Miao, LI
International Eye Science 2014;(6):986-991
AIM: To seek a small interfering RNA ( siRNA ) sequence targeting rat inhibitor of nuclear factor kappa Bα ( IκBα) that can specifically and effectively suppress IκBα mRNA expression of rat ciliary muscles in vivo.METHODS:Three IκBα specific double stranded siRNAs were designed and synthesized. They were transfected into rat A7r5 cells which express IκBα gene. Flow cytometry was used to assess transfected efficiency. The mRNA and protein levels of IκBα were examined by Real Time quantitative polymerase chain reaction ( Real Time-PCR ) and western blot to screen a candidate valid sequence with the highest inhibitory rate. The Cy3 labeled non-specific control siRNA or the candidate valid siRNA was then injected into rat anterior chamber. Distribution of Cy3- siRNA in rat ciliary muscles was viewed by fluorescence microscopy, and the inhibitory effect in vivo of the valid siRNA was identified via Real Time-PCR and immunofluorescence. RESULTS: The suppression effect of the siRNA targeting the CTACGATGACTGTGTGTTT of IκBα gene was most obvious by vitro screening. By anterior chamber injection, this valid siRNA could reach rat ciliary muscles and effectively suppress IκBα gene expression with the highest inhibitory rate of 59. 0% on mRNA level at 24h after RNAi, and 52. 3% on protein level at 72h after RNAi (P<0. 01).CONCLUSION: It proves that the siRNA targeting the CTACGATGACTGTGTGTTT of IκBα gene is the valid sequence to suppress rat IκBα expression of ciliary muscles by RNAi in vivo.
6.Parallel detection of the circulating antigens and antibodies in the diagnosis of schistosomiasis
Weiming LAN ; Honggen CHEN ; Xiaojun ZENG ; Weisheng JIANG ; Jun GE ; Shuying XIE
Chinese Journal of Zoonoses 2009;(12):1218-1221
To determine the diagnostic efficiency of parallel detection of the circulating antigens and antibodies in schistosomiasis, sandwich ELISA and indirect ELISA by using the labeled McAb JPG3 were used to detect the presence of the circulating antigens and the circulating IgG antibodies in serum samples from different kinds of population. and then the sensitivity and specificity of this method of testing as well as the efficiency of the application of this method in heavy endemic area. were determined in comparison with serial test. It was found that the sensitivity and specificity of the parallel test were 97.9% and 92.2% , however, those of the serial test were 76.0% and 99.2% respectively. The positive rates of parallel test and serial test to detect the stool examination-positive for schistosoma eggs in population of the endemic area were 94.6% (35/37) and 67.6% (25/37), while those to detect the stool examination-negative for schitosoma eggs were 69.8% (97/139) and 39.6% (55/139) respectively. It is apparent the parallel test for the detection circulating antigens and antibodies in schistosomiasis shows its high diagnostic efficiency, especially in the heavy endemic area of schitosomiasis.
7.Research progress on molecular genetics of forest musk deer.
Hang JIE ; Cheng-li ZHENG ; Jian-ming WANG ; Xiao-lan FENG ; De-jun ZENG ; Gui-jun ZHAO
China Journal of Chinese Materia Medica 2015;40(22):4319-4323
Forest musk deer is one of the large-scale farming musk deer animals with the largest population at the same time. The male musk deer can secrete valuable medicines, which has high medicinal and economic value. Due to the loss of habitat and indiscriminate hunting, the numbers of wild population specie and the distribution have been drastically reduced. Therefore, in-depth understanding of the molecular genetics progress of forest musk deer will pave a way for musk deer protection and breeding. In this review, the progress associated with the molecular marker, genetic classification, artificial breeding, musk secretion and disease in past decades were reviewed, in order to provide a theoretical basis for subsequent molecular genetic researches in forest musk deer.
Animals
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Breeding
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Deer
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classification
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genetics
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growth & development
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metabolism
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Ecosystem
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Fatty Acids, Monounsaturated
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chemistry
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metabolism
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Female
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Male
8.Application of TLE1 expression and fluorescence in-situ hybridization in diagnosing poorly differentiated synovial sarcoma.
Rong-jun MAO ; Qi-ming LI ; Hui-qiong FANG ; Fu-lan HAN ; Xun-fu HUANG ; Yan-xing WU ; Min ZENG
Chinese Journal of Pathology 2011;40(6):403-405
12E7 Antigen
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Adolescent
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Adult
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Antigens, CD
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metabolism
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Biomarkers, Tumor
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metabolism
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Brain Neoplasms
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secondary
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Cell Adhesion Molecules
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metabolism
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Child
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Child, Preschool
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Diagnosis, Differential
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Extremities
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Female
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Follow-Up Studies
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Humans
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Immunohistochemistry
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In Situ Hybridization, Fluorescence
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Infant
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Ki-67 Antigen
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metabolism
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Male
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Neuroectodermal Tumors, Primitive
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metabolism
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pathology
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Oncogene Proteins, Fusion
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metabolism
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Repressor Proteins
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metabolism
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Sarcoma, Ewing
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metabolism
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pathology
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Sarcoma, Synovial
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diagnosis
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metabolism
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pathology
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surgery
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Soft Tissue Neoplasms
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diagnosis
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metabolism
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pathology
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surgery
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Vimentin
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metabolism
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Young Adult
9.Chemical constituents and cytotoxicity assay research in small polar substances from Vitis thunbergii var. taiwaniana.
Chao JIANG ; Wen-zhu WANG ; Xiao-jun LIAO ; De-quan ZENG ; Ting LING ; Shi-lan XU ; Jin-zhang ZENG ; Hai-feng CHEN
China Journal of Chinese Materia Medica 2015;40(15):2999-3004
This article studied the chemical constituents from the aerial part of Vitis thunbergii var. taiwaniana. The 60% ethanol extract was eluted with 95% ethanol though HP-20 macroporous adsorption resin column. 12 compounds, including (1) betulinic acid, (2)2, 2, 2'-bis (4-hydroxyphenyl) propane bis (2, 3-epoxypropyl) ether, (3) eriodictyol, (4) trans-ε-viniferin, (5) (+)-cis-ε-viniferin, (6) kobophenol A, (7) ampelopsin A, (8) nepalensinol B, (9) cis-miyabenol C, (10) cis-vitisin B, (11) cis-gnetin H and (12) (+)-hopeaphenol, were separated by using normal phase silica gel, ODS, Sephdadex LH-20 column chromatographies and semi-preparative or preparative HPLC. Compounds 2, 5, 6, 8, 9, 10, 11 were separated from the genus Vitis for the first time and compounds 3, 7, 12 were separated from Vitis thunbergii var. taiwaniana for the first time. At a concentration of 50 μmol · L(-1), compound 6, 7 and 11 showed strong cytotoxicity against MCF-7 cell lines with the inhibition rate of 66.58%, 57.16%, 52.84%, respectively.
Antineoplastic Agents, Phytogenic
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pharmacology
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Humans
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MCF-7 Cells
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Plant Extracts
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analysis
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pharmacology
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Vitis
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chemistry
10.An epidemiologic study on Pneumocystis pneumonia in non-HIV infected patients in China
Lan SUN ; Min-Jun HUANG ; Yi-Jun AN ; Zeng-Zhu GUO
Chinese Journal of Epidemiology 2009;30(4):348-351
Objective To analyze the epidemiologic features of Pneumocystis pcumonia (PCP) among non-HIV infected patients in China. Methods Sputum or bronchoalveolar lavage fluid (BALF) specimens obtained from 851 pneumonia patients without HIV infection from Jan. 2006 to Oct. 2008 were detected, using PCR and Gomori' s methenamine silver (GMS) stain for Pneumocystis jirovecii. Results Of the 615 sputum specimens, P.jirovecii positive rates of PCR and GMS stain were 20.3% and 10.2% respectively (P<0.05). Of 236 BALF specimens, P. jirovecii positive rates of PCR and GMS stain were 32.6% and 25.5% respectively (P0.05). Of the total 851 pneumonia cases, 123 (14.5%) were GMS positive for P.jirovecii cyst and 202 cases (23.7%) were PCR positive for P. jirovecii DNA. In those immuno-suppressed patient group including patients with connective tissue diseases, organ transplant recipients, nephrotic, hematologic diseases and malignant tumor, P. jirovecii positive rate appeared the highest, 28.2% for GMS stain and 39.4% for PCR. There were also PCP patients in the immuno-competcnt pneumonia patient groups including senile patients with chronic diseases and patients without clear predisposing immuno-deficiencies. The positive rates of P. jiroveeii GMS were 8.7% and 10.9% , respectively and 17.5% and 19.6% for P. jiroveeii under PCR.Conclusion PCR assay seemed sensitive for the detection of P. jirovecii in the sputum specimens and could be used for screening PCP patients without HIV infection. Our data showed that there was high risk of PCP in non-HIV infected patients in China.