1.Study on correlation between intestinal flora characteristic and insulin resistance
Qing XIONG ; Xuejun YANG ; Xi REN ; Hui LIN
Chongqing Medicine 2016;45(33):4658-4660
Objective To explore the correlation between the change of intestinal flora and insulin resistance in pre-diabetes population,and the role of intestinal flora in the occurrence and development in the pre-diabetes population.Methods two hundreds and fifty cases of pre-diabetes in our hospital were selected and divided into the group A(pre-diabetes intervention group)and B(prediabetes non-treatment group).Fifty cases of diabetes(positive control group)served as the group C.The cohort study was adopted.The follow-up intervention lasted for two years.The intestinal flora and blood biochemical indicators were detected in different groups and at different time periods.The insulin resistance index was calculated.Results The total bacterial count before intervention in the group A and B was significantly higher than that in the group C;Enterococcus genus in the group C was significantly higher than that in the group A and B;the proteus and lactobacillus content in the group A and B was higher than that in the group C,but the difference was not significant;Bifidobacterium genus in the group C was higher than that in the group A and B.After intervention,the total bacterial amount in the group Awas significantly higher than the group B and C,but there was no statistical difference between the group B and C;enterococcus genus in the group C was significantly higher than that in the group A and B,enterococcus genus after intervention in the group A was reduced and which in the group B was increased,the difference had statistical significance;the proteus and lactobacillus content in the group A and B was higher than that in the group C,but the difference was not significant;bifidobacterium genus in the group C was higher than that in the group A and B,moreover which after intervention in the group B was increased,the difference was statistically significant.The insulin resistance before processing had no statistical difference between the groups A and B,which in the group C was higher than the group A and B,the insulin resistance after intervention in the group A was decreased,the difference was statistically significant.The total bacterial count,enterococcus and bifidobacterium were positively correlated with insulin resistance,and bacteroides,proteus and lactobacillus had no significant correlation with insulin resistance.Conclusion Intestinal flora has correlation with insulin resistance,and serves as a marker of pre-diabetes development,implementing the probiotics adjustment combined the quantization aerobic muscular movement can realize the adjustment of insulin sensitivity and improves the diabetic development in the prediabetic population.
2.Potential in for PKC inhibitor Rottlerin in murine experimental model of asthma
Jianyong SONG ; Yuxiang REN ; Hui LIN ; Xiaomin ZHANG ; Jianxun SONG ;
Journal of Third Military Medical University 2003;0(16):-
Objective To study the potential role of PKC inhibitor Rottlerin in the treatment of asthma. Methods Balb/c mice were sensitized and challenged with ovalbumin(OVA) protein to construct murine experimental model of asthma. Then the mice were treated by means of injection of Rottlerin or phosphate buffered saline (PBS) into the abdominal cavity. Changes of the total serum IgE, pulmonary eosinophils, cytokines and pulmonary inflammation were investigated. Results Injection of Rottlerin at the dose 0.3 mg/kg into the murine abdominal cavity could inhibit the infiltration of pulmonary eosinophils and pulmonary inflammation and significantly decrease the production of total serum IgE and Th 2 cytokines as well. Conclusion Rottlerin can inhibit murine experimental asthma.
3.Content Determination of Trigonelline in Wild and Cultivated Himalaica Mirabilis of Different Districts
Hui LIN ; Ting ZHAO ; Qingjia REN ; Huiqin ZOU ; Zhiyu REN ; Jiahui LI ; Lian PENG ; Yonghong YAN
Chinese Journal of Information on Traditional Chinese Medicine 2014;(12):76-78,79
Objective To compare differences and similarities of the content of trigonelline in Himalaica mirabilis of either wild or cultivated materials from different places. Methods An HPLC method was established to determine the content of trigonelline in Himalaica mirabilis. ZORBAX XDB-CN column (4.6 mm×250 mm, 5 μm) was used, with mobile phase of acetonitrile-0.03%acetic acid (85∶15), flow rate of 0.8 mL/min, detection wavelength of 265 nm, determination wavelength of 360 nm, and column temperature of 30 ℃. Results Regression calculation was made on peak area with the reference solution concentration, and then got the regression equation A=23.409C-26.398, r=0.999 8. Trigonelline showed good linear relation with peak area among the range of 2.004-200.400 μg/mL. The average recovery of trigonelline was 99.57%, RSD=1.11%. Conclusion There was no significant difference in the content of trigonelline of either wild or cultivated materials from different places. This study laid the foundation of application of the cultivated Himalaica mirabilis.
4.Methodological Research on TLC Identification of Radix Mirabilis himalaica
Hui LIN ; Ting ZHAO ; Qingjia REN ; Huiqin ZOU ; Jiahui LI ; Lian PENG ; Zhiyu REN ; Yonghong YAN
World Science and Technology-Modernization of Traditional Chinese Medicine 2014;(12):2725-2730
This study was aimed to establish the TLC identification method of Radix Mirab ilis himalaic a. The β-sitosterol and daucosterol were used as the reference substances. The single-factor test was used. A variety of factors which affected TLC were systematically investigated to filter out the best TLC conditions for identification of different batches of medicines. The results showed that the best TLC conditions were as follows: silica gel G plates, extraction solvent (methanol), reagent (5% sulfuric acid in ethanol), extraction method (ultrasonic extraction with methanol), ex-tracted time (30 min), the agent (petroleum ether-ethyl acetate-acetone (5:2:1)) and sample volume (6 μL). It was concluded that the method, which had high separation degree, was reproducible and simple. It can be used as the quality control of Radix Mirab ilis himalaic a.
5.Correlations between Fetal Congenital Cardiovascular Anomalies and Chromosomal karotypes
Hui GUO ; Linhua LIN ; Jinhui REN ; Qiyun LI ; Xiuhua LIN ; Jun ZENG ; Zhuojian LIANG
Chinese Journal of Postgraduates of Medicine 2014;37(z1):58-60
Objective To investigate the distribution of congenital cardiovascular malformations in fetuses with chromosomal abnormalities.Method Congenital cardiovascular malformations of fetuses were diagnosed by prenatal ultrasonic cardiography from Jan 2011 to Sep 2013,and whose chromosomal karotype were tested by amniocentesis or cordocentesis.The association between chromosomal karyotypes and distribution of congenital cardiovascular malformations was analyzed.Result In 173 Fetuses with chromosomal abnormalities,20(11.56%) cases had congenital cardiovascular malformations,including seven 21-trisomies,eight 18-trisomies,three 13-trisomies and two 45,X.64% (16/25) fetuses with congenital cardiovascular malformations accompanied with other malformations had chromosomal abnormalities.Only 1.87% (52/4379) fetuses with normal karotype had congenital cardiovascular malformations.Conclusion Chromosomal abnormality is the most reason of complicate CHD.Chromosomal karotype test should be detected in fetus with complicate CHD.
6.Identification of Bupleurum chinense and B. longiradiatum based on ITS2 barcode.
Jun-Lin YU ; Sha ZHAO ; Ming-Bo REN ; Qi-Ni QIAN ; Xiao-Hui PANG
China Journal of Chinese Materia Medica 2014;39(12):2160-2163
In this study, ITS2 barcode was used to identify Bupleurum chinense and B. longiradiatum. The ITS2 regions of 48 samples were amplified and sequenced. The sequences obtained above were aligned and the K2P distances were calculated. We used three methods, BLAST1, nearest distance and phylogenetic tree (NJ-tree), to test the identification ability. The results showed that the maximum intraspecific genetic distance of B. chinense was 0.013, and the minimum interspecific genetic distance between B. chinense and B. longiradiatum was 0.049. The NJ-tree can easily identify B. chinense and B. longiradiatum. Therefore, the ITS2 barcode is suitable to identify B. chinense and B. longiradiatum.
Bupleurum
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classification
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genetics
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DNA Barcoding, Taxonomic
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methods
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DNA, Plant
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genetics
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DNA, Ribosomal Spacer
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genetics
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Drugs, Chinese Herbal
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chemistry
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classification
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Molecular Sequence Data
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Phylogeny
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Quality Control
8.A calculational method of the three-parameter for blood electrical impedance
Hui ZHANG ; Haibin HUANG ; Yan WANG ; Guojing LIN ; Chaoshi REN ; Jianxin HAN ; Xuemin WANG
Chinese Journal of Medical Physics 2000;17(4):254-256
According to the three-parameter expression of blood , the dual-frequency complex impedance information is selected as the known quantity. In this paper , the particular solution process of three-parameter is introduced. A calculational method to obtain basic quantity and pulsatile quantity of three-parameter of blood electrical impedance is established.
9.Association of CMTM5 gene expression with the risk of in-stent restenosis in patients with coronary artery disease after drug-eluting stent implantation and the effects and mechanisms of CMTM5 on human vascular endothelial cells.
Teng Fei LIU ; Tao LIN ; Li Hui REN ; Guang Ping LI ; Jian Jun PENG
Journal of Peking University(Health Sciences) 2020;52(5):856-862
OBJECTIVE:
To elucidate the correlation between CKLF-like marvel transmembrane domain containing member (CMTM5) gene and the risk of in-stent restenosis (ISR) with coronary artery disease (CAD) patients and to detect the effects and mechanisms of CMTM5-stimulated genes on human vascular endothelial cells (ECs) proliferation and migration.
METHODS:
A total of 124 hospitalized patients in Shijitan Hospital were enrolled in this study. All the CAD patients were detected with platelet reactivity and grouped into two groups according to platelet reactivity; ISR was conformed by coronary angiography; RT-PCR method was used to detect CMTM5 gene expression; The CMTM5 over expression, reduction and control EC lines were established; Cell count, MTT, Brdu and flow cytometry methods were used to detect the proliferation of ECs, scratch and transwell experiments to test the migration of ECs, Western blot was used to detect signal path expressions.
RESULTS:
CMTM5 gene expression in HAPR (High on aspirin platelet reactivity) group was 1.72 times compared with No-HAPR group, which was significantly higher than No-HAPR group. HAPR group ISR rate was 25.8% (8 cases), the incidence of No-HAPR ISR group was 9.7% (9 cases), and the results showed that in HAPR group, the incidence of ISR was significantly higher than that in No-HAPR group (P=0.04, OR=0.04, 95%CI=1.16-7.52), which showed that CMTM5 gene was significantly correlated with the risk of ISR. In HAPR group ISR rate was 25.8% (8 cases), the incidence of ISR in No-HAPR group was 9.7% (9 cases), and the results showed that the risk of ISR in HAPR group was significantly higher than that in No-HAPR group. All the results showed that CMTM5 was significantly correlated with the risk of ISR in CAD patients (P < 0.05). CMTM5 overexpression inhibited the proliferation and migration ability of ECs (P < 0.05), PI3K/Akt signaling pathways were involved in the role of regulation on ECs.
CONCLUSION
Our results revealed that CMTM5 gene was closely related with ISR, CMTM5 overexpression may repress ECs proliferation and migration through regulating PI3K-Akt signaling.
Chemokines
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Coronary Artery Disease/surgery*
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Coronary Restenosis
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Drug-Eluting Stents/adverse effects*
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Endothelial Cells
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Humans
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MARVEL Domain-Containing Proteins
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Phosphatidylinositol 3-Kinases
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Tumor Suppressor Proteins
10.Association between CMTM5 gene and coronary artery disease and the relative mechanism.
Teng Fei LIU ; Tao LIN ; Li Hui REN ; Guang Ping LI ; Jian Jun PENG
Journal of Peking University(Health Sciences) 2020;52(6):1082-1087
OBJECTIVE:
To elucidate the correlation between CKLF-like MARVEL transmembrane domain containing member 5 (CMTM5) gene and the risk of coronary artery disease (CAD), and to detect the effects of CMTM5 gene expression changes on the ability of adhesion and migration of THP-1 cells.
METHODS:
Using case-control method, a total of 700 hospitalized patients in Shijitan Hospital were enrolled in this study. CAD were diagnosed by coronary angiography, which was defined as at least one blood vessel diameter stenosis ≥50% according to the result of coronary angiography. Reverse transcription-polymerase chain reaction (RT-PCR) method was used to detect CMTM5 gene expression; enzyme linked immunosorbent assay (ELISA) method to detect the plasma level of CMTM5; and Logistic regression to analyze CMTM5 genes and the risk of CAD. Human vascular endothelial cells (ECs) and THP-1 cells were cultivated, adhesion and Transwells experiments were used to evaluate the chemotactic capabi-lity of CMTM5 gene on THP-1 cells.
RESULTS:
In this study, 350 CAD patients matched with 350 control patients were included. RT-PCR results revealed CMTM5 mRNA expression in CAD group was 3.45 times compared with control group, which was significantly higher than that in control group (P < 0.05). The levels of CMTM5 plasma protein in CAD group was (206.1±26.9) μg/L, which was significantly higher than that in control group (125.3±15.2) μg/L (P < 0.05). After adjusted for the risk factors of age, gender, BMI, smoking, hypertension, diabetes and hyperlipidemia, Logistic regression analysis results indicated that CMTM5 was the susceptibility factors of CAD, which still had significant correlation with CAD (P < 0.05). Adhesion and Transwells experiments results revealed that the numbers of adhesion and migration of THP-1 cells in CMTM5 overexpression ECs group (EO group) were significantly higher than that in lenti-mock infected ECs group (EO-MOCK group), non-infected ECs group (EN group), lenti-mock infected ECs group (ES-MOCK group), and CMTM5 suppression ECs group (ES group). On the contrary, the numbers of adhesion and migration of THP-1 cells in ES group were significantly lower than that in the other four groups (P < 0.01).
CONCLUSION
CMTM5 gene was closely related to the development of CAD. CMTM5 overexpression promoted the adhesion and migration of THP-1, which might play a part in the mechanisms of atherosclerosis and CAD.
Chemokines
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Coronary Angiography
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Coronary Artery Disease/genetics*
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Endothelial Cells
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Humans
;
MARVEL Domain-Containing Proteins
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Tumor Suppressor Proteins