1.Inhibition of mitochondrial permeability transition pore opening reduced Aβ-mediated inflammatory effects on the apoptosis of neural stem cell
Qingzhuang CHEN ; Ning ZHU ; Jizhong LIN ; Yan WAN ; Kewan WANG ; Yong WANG
The Journal of Practical Medicine 2014;(9):1380-1384
Objective The aim of this study is to investigate the protective effect of inhibiting the open of mitochondrial permeability transition pore on neural stem cells. Methods In present study, four groups were set up, such as control, conditioned medium control group, Aβ1-42 group and CsA group. The levels of inflammatory mediators were detected by LiquiChip technique. The apoptotic rate of neural stem cells was detected by flow cytometry and the expression of caspase-3 was confirmed by western blotting. Results The levels of IL-6 and TNF-αwere 7.92 and 1.22 times higher than those in control group after Aβ1-42 acting on microglia for 96 h. After being exposed to inflammatory media, the apoptotic rate of neural stem cells reached 41.17%, these was significant increase compared to control (P<0.001);while the apoptotic rate were decrease significantly if the open of the mitochondrial permeability transition pore was inhibited. In the meantime, the activation of caspase-3 was reduced obviously. Conclution Inhibiting the open of mitochondrial permeability transition pore can markedly reduced the apoptotic rate of neural stem cells , and dramatically impaired the effect of inflammatory on the apoptosis of neural stem cells , suggesting that inhibiting the opening of the mitochondrial permeability transition pore have protective effect on neural stem cells.
2.Chemical constituents from Rehmannia glutinosa.
Xingnuo LI ; Mengyu ZHOU ; Peiqiang SHEN ; Jianbing ZHANG ; Chu CHU ; Zhiwei GE ; Jizhong YAN
China Journal of Chinese Materia Medica 2011;36(22):3125-3129
OBJECTIVETo study the chemical constituents from the roots of Rehmannia glutinosa.
METHODThe compounds were isolated by various chromatographic methods and identified by spectroscopic analysis.
RESULTTwelve compounds were isolated and their structures were identified as 5-hydroxymethyl-pyrrole-2-carbaldehyde (1), 5-hydroxymethyl furfural (2), tyrosol (3), 5,6-dihydroxy-beta-ionone (4), 6-O-E-feruloyl ajugol (5), acteoside (6), leucosceptoside A (7), martynoside (8), isomartynoside (9), purpureaside C (10), jionoside A1 (11), and jionoside B1 (12).
CONCLUSIONCompounds 1, 3 and 9 were isolated from the genus Rehmannia for the first time.
Glycosides ; analysis ; Rehmannia ; chemistry
3.Gene mutation analysis of 19 Uighur families with aortic disease in Kashgar, China.
Changjiang YU ; Ying LI ; Abuduresuli ADILIJANG ; Jizhong YAN ; Arkin GUZALNUR ; Abudula ABUDUSHALAMU ; Yimamu AIMIRELA ; Ruixin FAN
Journal of Southern Medical University 2020;40(11):1607-1614
OBJECTIVE:
To explore genetic mutation types and their correlation with clinical phenotypes in Uighur patients with aortic disease in Kashgar (Xinjiang Uighur Autonomous Region, China).
METHODS:
We examined 37 pathogenic genes in 19 Uighur families with aortic diseases including Marfan syndrome from Kashgar using next generation sequencing, and the results were confirmed by Sanger sequence in the first relatives.
RESULTS:
This study included 19 families with aortic diseases, in whom a total of 23 variants were identified, and 11 (57.89%) probands had one or more variants. Among them, definite pathogenic mutation was detected in one patient (5.26%), variants of uncertain significance (VUS) were found in 8 (42.11%), and benign/likely benign variants were detected in 7 (36.84%). The 23 variants identified included one (5.26%) pathogenic variant, 14 (60.87%) VUS, and 8 (34.78%) benign/likely benign variants. The 14 VUS were analyzed by prediction with SIFT and Polyphen2 HDIV, which identified 6 (42.86%) variants as deleterious/possibly damaging; all the 8 benign/likely benign variants were predicted to be deleterious/possibly damaging.
CONCLUSIONS
We detected 23 genetic variants in the 19 Uighur families with aortic diseases, and 22 of these variants remain to be verified by more patient data in future studies.
Aortic Diseases
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China
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Genetic Predisposition to Disease/genetics*
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High-Throughput Nucleotide Sequencing
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Humans
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Mutation
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Phenotype
4.Salivary mycobiome dysbiosis and its potential impact on bacteriome shifts and host immunity in oral lichen planus.
Yan LI ; Kun WANG ; Bo ZHANG ; Qichao TU ; Yufei YAO ; Bomiao CUI ; Biao REN ; Jinzhi HE ; Xin SHEN ; Joy D VAN NOSTRAND ; Jizhong ZHOU ; Wenyuan SHI ; Liying XIAO ; Changqing LU ; Xuedong ZHOU
International Journal of Oral Science 2019;11(2):13-13
The biodiversity of the mycobiome, an important component of the oral microbial community, and the roles of fungal-bacterial and fungal-immune system interactions in the pathogenesis of oral lichen planus (OLP) remain largely uncharacterized. In this study, we sequenced the salivary mycobiome and bacteriome associated with OLP. First, we described the dysbiosis of the microbiome in OLP patients, which exhibits lower levels of fungi and higher levels of bacteria. Significantly higher abundances of the fungi Candida and Aspergillus in patients with reticular OLP and of Alternaria and Sclerotiniaceae_unidentified in patients with erosive OLP were observed compared to the healthy controls. Aspergillus was identified as an "OLP-associated" fungus because of its detection at a higher frequency than in the healthy controls. Second, the co-occurrence patterns of the salivary mycobiome-bacteriome demonstrated negative associations between specific fungal and bacterial taxa identified in the healthy controls, which diminished in the reticular OLP group and even became positive in the erosive OLP group. Moreover, the oral cavities of OLP patients were colonized by dysbiotic oral flora with lower ecological network complexity and decreased fungal-Firmicutes and increased fungal-Bacteroidetes sub-networks. Third, several keystone fungal genera (Bovista, Erysiphe, Psathyrella, etc.) demonstrated significant correlations with clinical scores and IL-17 levels. Thus, we established that fungal dysbiosis is associated with the aggravation of OLP. Fungal dysbiosis could alter the salivary bacteriome or may reflect a direct effect of host immunity, which participates in OLP pathogenesis.
Adult
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Bacteria
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isolation & purification
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Case-Control Studies
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Dysbiosis
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complications
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microbiology
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Female
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Humans
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Lichen Planus, Oral
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complications
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microbiology
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Male
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Microbiota
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Middle Aged
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Mouth Mucosa
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microbiology
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Mycobiome
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Saliva
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microbiology