1. The coupling mechanism of connexin 43 and aquaporin 4 together inducing brain edema formation in glioma
Tumor 2013;33(10):849-854
Objective: To search for the coupling mechanism of connexin 43 (CX43) and aquaporin 4 (AQP4) together inducing brain edema formation in glioma. Methods: Intracranial C6 glioma xenograft models were established in the rats, then magnetic resonance imaging detection was used to find the tumor and brain edema, and immunofluorescence and Western blotting method were used to detect CX43 and AQP4 expressions in both intratumoral and peritumoral tissues. C6 glioma cells and normal glial cells were cultured in hypotonic medium, then RT-PCR (reverse transcription-PCR) was used to detect and compare CX43 and AQP4 mRNA expression trends. AQP4 or CX43 expression was silenced in C6 glioma cells and normal glial cells by siRNA (small interference RNA) technology, then the other genetic change was detected by RT-PCR. Results: In C6 glioma xenograft models, CX43 expression was missed and AQP4 expression was slightly elevated in the intratumoral tissues. But in the peritumoral tissues, CX43 expression was slightly elevated and AQP4 expression was significantly increased. In vitro, the hypotonic environment induced elevation of AQP4 and CX43 mRNA levels with time-varying degrees in both normal glial cells and C6 glioma cells, but the change degree of normal glial cells was significantly lower than that of tumor cells, and the time window of CX43 changes was backward of AQP4. The elevated degree of CX43 was significantly decreased when AQP4 expression was silenced by siRNA in C6 cells (P < 0.05), while the AQP4 expression was not affected by CX43 expression silencing in normal cells (P > 0.05). Conclusion: There are two different mechanisms of AQP4 and CX43 inducing brain edema formation intratumorally and in the edge of glioma. CX43 may be one of the potential downstream regulatory factors of AQP4. Copyright © 2013 by TUMOR.
2.Expression of Apoptosis Associated Proteins Survivin and Fas in Nephroblastoma and Their Clinical Significance
zhong, JIANG ; chuan-min, YANG ; bu-xian, JIANG
Journal of Applied Clinical Pediatrics 2004;0(11):-
Objective To explore the role of Survivin and Fas in the tumor cells′ invasion and metastasis and to evaluate whether they can be used as a reliable predictor for diagnosis and a new treatment pattern for therapy.Methods Thirty paraffin-embeded material of nephroblastoma were collected.The control group was composed of 15 specimens of normal kidney tissue acquired from paratumor region of the material.Immunohistochemistry methods was used to detect the stain of Survivin and Fas proteins in normal kidney and nephroblastoma specimens,compared them with clinical stage,pathology type and the outcome.Results Positive expression rate of Survivin in tumor specimens and significantly higher than that in control group(53.3% vs 0,P
3.Experience in the teaching of child neurologic training doctors
Min ZHONG ; Mei LI ; Min CHENG ; Siqi HONG ; Li JIANG
Chinese Journal of Medical Education Research 2011;10(7):891-893
Based on their own characteristics and learning purposes of the child neurologic training doctors and to full use of the advantage of our hospital in faculties, facilities and patients, the plan was designed and focused on better understanding of clinical related basic theoretical knowledge, improving the ability of clinical research and thesis writing, strengthening communication skills between patients and doctors, and medical ethics training and health regulations learning. The training doctors achieved good results in the aspects of medical skills, research ability and comprehensive professional quality.
5.Investigation of properties of the resveratrol-beta-cyclodextrin inclusion complex by drug-protein interaction spectra and molecular modeling.
Ming GUO ; Min-Zhong ZHAN ; Yan-Ke JIANG
Acta Pharmaceutica Sinica 2014;49(5):726-733
The supramolecular inclusion properties of beta-cyclodextrin (beta-CD) and resveratrol (Res) were investigated using drug-protein interaction spectroscopy method. The differences between the results of interaction spectroscopy method and the results of classical method were compared. The total energy of the stable inclusion of cyclodextrin-resveratrol was calculated by Gaussian theory calculation. The stable inclusions in the process of interaction between resveratrol/inclusion complex and bovine lactgoferrin (BLF) were studied by molecular modeling. The results showed that the interaction spectroscopy method could explain the property of the inclusion in a more sensitive manner, it also interpreted the conveying mechanism of BLF binding with inclusion complex. The molecular modeling result showed consistent results with Gaussian theory calculation; both of the two methods obtained the stable configuration of beta-CD-Res inclusion. The relevant result provided an experimental consequence for the pharmacology research of beta-cyclodextrin-resveratrol inclusion complex as well as offering a new reference to the future research of supramolecular inclusion compound.
Animals
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Cattle
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Lactoferrin
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chemistry
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Magnetic Resonance Spectroscopy
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Models, Molecular
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Stilbenes
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chemistry
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beta-Cyclodextrins
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chemistry
6.LONGITUDINAL EVALUATION OF EFFICACY ON CONTROL OF SCHISTOSOMIASIS JAPONICA BY ENVIRONMENTAL MODIFICATION IN JIJIABA VILLAGE, ANHUI PROVINCE
Qingwu JIANG ; Hongchang YUAN ; Dumin ZHONG ; Min CHEN
Chinese Journal of Schistosomiasis Control 1989;0(02):-
A preliminary survey was done in 1980 in Jijiaba Village before the dike was built . The dike of 2. 5 km in length and 4m high was built along Baiyang River by the end of 1980 . The molluscicide NaPCP was used for snail control from 1981 to 1984 . After the entire control measures were completed in 1984, a follow-up survey was conducted as to measure the impact of control measures on prevalence of schistosomiasis and population of snail from 1985 to 1989 . All of the results suggested that these control measures were very successful. The transmission of schistosomiasis in this area has been prevented since 1984 .
7.The application of array comparative genomic hybridization for the detection of chromosomal defects in newborns
Min JIANG ; Yan ZHONG ; Yujie QI ; Yajuan WANG ; Caiyun YANG
Chinese Journal of Neonatology 2017;32(2):119-122
Objective To study the application of the array comparative genomic hybridization (Array-CGH) for the detection of chromosomal disorders in newborns.Method The Array-CGH technique was used to analyze the whole genome of the patients who were suspected of chromosomal disease in neonatal ward of our hospital from January to December in 2014,and further verification in genomic unbalanced ectopia was carried out by FISH (fluorescence in situ hybridization,FISH).Result Among 514 patients,104 were found carrying chromosomal abnormalities with a detection rate of 20.2%.The most common chromosomal disease is the Down syndrome syndrome (24 cases),followed by the chubby Willy and Angel syndrome(17 cases),while the Wolf-Hirschhorn syndrome in 5 cases,Williams syndrome in 5 cases and the Criduchat syndrone in 5 cases.The results of FISH were consistent with Array-CGH.Conclusion The technique of Array-CGH can be used to scan the whole genome of children with unknown disease.As a high-throughput and rapid research method,this technique has important clinical significance in the screening of chromosomal diseases.
8.Study of central venous oxygen saturation monitoring applicated in fluid resuscitation of patients with severe sepsis and septic shock
Jianping JIANG ; Yifu SI ; Min WANG ; Lin ZHONG
Chinese Journal of Primary Medicine and Pharmacy 2017;24(12):1790-1792
Objective To guide the fluid resuscitation in patients with severe sepsis and septic shock by monitoring the central venous oxygen saturation(ScvO2),and to improve the rescue success rate and prognosis of patients with sepsis.Methods Based on the standard of ScvO2 of 6h,45 patients with severe sepsis and septic shock were divided into two groups:observation group(n=28) and control group(n=17).The ScvO2,mean arterial pressure(MAP) and central venous pressure(CVP) levels were measured in the two groups after fluid resuscitation,and then the mortality,MAP compliance rate and CVP compliance rate were compared between the two groups.Results Compared with mortality in the control group(52.94%),the mortality in the observation group(14.29%) was significantly lower,the difference was significant (x2=5.927,P=0.015),but after 6h's fluid resuscitation,the MAP and CVP standard number in the two groups did not exist significant difference(x2=1.182,P>0.05).Conclusion ScvO2 with or without reaching the standard level(more than 65%) was positively correlated with the severity of the disease after fluid resuscitation in patients with severe sepsis and septic shock.Therefore,the monitoring of ScvO2 plays an important role in guiding the treatment of fluid resuscitation and judging the prognosis.
9.IEC material development for malaria control by working with target populations
Jianwei XU ; Min XIA ; Petlueng PRICHA ; Xianhua WU ; Hong TAO ; Yanchun ZHONG ; Hong JIANG ; Kaihong LI
Chinese Journal of Schistosomiasis Control 2006;18(1):56-59
Objective To develop user-friendly information education-communication (IEC)materials and guidelines of malaria control for various target groups. Methods The participatory methods were used to make sure participation of target groups at each stages of IEC material development. Results A package consisted of interactive video, 2 posters for primary groups, sto ry booklet for students, manual for activities of "buddy system" for teachers, flipcharts for health staff at grass-root levels, guidelines on communication skill and how to use the first 5kinds of materials, was developed. Conclusion A set of user-friendly IEC materials and guidelines of malaria control has successfully been developed with sufficient participation of target groups.
10.Correlation research on contents of podophyllotoxin and total lignans in Sinopodophyllum hexandrum and ecological factors.
Min LI ; Guo-yue ZHONG ; Ao-lin WU ; Shou-wen ZHANG ; Wei JIANG ; Jian LIANG
China Journal of Chinese Materia Medica 2015;40(9):1831-1836
To explore the correlation between the ecological factors and the contents of podophyllotoxin and total lignans in root and rhizome of Sinopodophyllum hexandrum, podophyllotoxin in 87 samples (from 5 provinces) was determined by HPLC and total lignans by UV. A correlation and regression analysis was made by software SPSS 16.0 in combination with ecological factors (terrain, soil and climate). The content determination results showed a great difference between podophyllotoxin and total lignans, attaining 1.001%-6.230% and 5.350%-16.34%, respective. The correlation and regression analysis by SPSS showed a positive linear correlation between their contents, strong positive correlation between their contents, latitude and annual average rainfall within the sampling area, weak negative correlation with pH value and organic material in soil, weaker and stronger positive correlations with soil potassium, weak negative correlation with slope and annual average temperature and weaker positive correlation between the podophyllotoxin content and soil potassium.
Berberidaceae
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chemistry
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China
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Chromatography, High Pressure Liquid
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Climate
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Drugs, Chinese Herbal
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chemistry
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isolation & purification
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Ecosystem
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Lignans
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chemistry
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isolation & purification
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Podophyllotoxin
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chemistry
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isolation & purification
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Soil
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chemistry
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Temperature