1.Effects of antibiotics on energy metabolism and adipose tissue function in high-fat diet-induced obese mice
Yuanjie CUI ; Xinwen BI ; Fan BU ; Jia CUI ; Qiuxian LU ; Fang HE ; Hua YANG ; Ming LI
Journal of Public Health and Preventive Medicine 2024;35(6):6-10
Objective To study the effects of antibiotics and high-fat diet on energy metabolism and the browning of white adipose tissue (WAT) and brown adipose tissue (BAT) in mice, so as to provide new ideas for the possible mechanism of adipose tissue in the prevention and treatment of obesity. Methods A total of 80 10-week-old C57BL/6 male mice were fed with normal diet in the early stage, and the antibiotic gavage group (AG) and antibiotic high-fat group (AFG) were given mixed antibiotics by gavage. The blank group (BG) and the high-fat diet group (FG) were given normal saline intragastric solution for 2 weeks, and after the gavage operation, the FG group and the AFG group were given high-fat diet for obesity modeling, and the BG group and AG group continued to be fed with normal diet for 8 weeks (N=20). After the experiment, each group was injected with β3-adrenergic receptor agonists for 5 days, and the high-fat/ordinary diet remained unchanged. At the end of the experiment, basal metabolic rate (BMR), fasting blood glucose (FBG) and rectal temperature were measured, and feces, blood, subcutaneous white fat, epididymis and brown adipose tissue in the scapular area of mice were collected. The automatic biochemical analyzer was used to determine the blood biochemical indexes; reverse transcription polymerase chain reaction (RT-qPCR) was used to measure the expression of genes related to browning of WAT and BAT adipose tissue, respectively. Real-time quantitative polymerase chain reaction (qPCR) was used to determine the expression of WAT mitochondrial DNA (mt DNA). Results From the 4th week to the end of the experiment, the weight of the AFG group was significantly higher than that of the AG group and significantly lower than that of the FG group (P<0.05). The body weight, organ coefficient, serum TC level, rectal temperature and WAT cell diameter in the AFG group were significantly higher than those in the AG group. The serum levels of FBG, TC and LDL in the AFG group were significantly lower than those in the FG group (P<0.05). The overall BMR(mlO2/h) FG group was significantly higher than that of BG group, and the AFG group was significantly higher than that of AG. BMR per unit body weight (mlO2/h/g) AFG was significantly higher than that of FG group (P<0.05). The expressions of RIP140, PPAR-γ and UCP-1 in BAT in the AFG group were significantly higher than those in the FG group, and the mt DNA copy number of WAT in the AFG group was significantly higher than that in the FG group (P<0.05). Conclusion Antibiotic intervention can up-regulate the expression of brown fat-related genes in high-fat diet mice, increase brown fat activity, increase the relative mitochondrial number of white fat, increase the level of browning of white fat, promote thermogenesis, increase the BMR per unit body weight of adult obese mice, and then improve the overall energy metabolism of the body, and slow down the weight gain induced by high-fat diet to a certain extent.
2.An experimental study on the biological characteristics of SDF-1/CS/β-GP composite bio-membrane in vitro
Kaiqi ZHANG ; Jianyong DONG ; Yajie ZHANG ; Yanting HE ; Yuanyuan HUO ; Zhaoyuan LI ; Jun CUI
STOMATOLOGY 2023;43(3):212-217
Objective:
To prepare a composite membrane by chitosan/β-sodium glycerophosphate(CS/β-GP) thermosensitive hydrogel combined with stromal cell derived factor-1(SDF-1) and observe its biological characteristics in vitro.
Methods:
Different doses of SDF-1 were added into CS/β-GP solution and then the thermosensitive gel time was measured. The SDF-1/CS/β-GP solution was membrane paved and dried to prepare composite membranes. The morphological characteristics were observed by scanning electron microscope(SEM). Composite membranes were placed into cell culture medium, and the supernatant(n=3) was extracted after standing at 6, 12, 24, 36, 48, 60 h, respectively. The concentration of SDF-1 in the solution was measured. Bone mesenchymal stem cells(BMSCs) were cultured in the Transwell room, and the composite membranes containing different concentrations of SDF-1 were placed in the lower chamber. There were four groups(n=3): Group M0 used CS/β-GP membrane(control group), Group M1, M2, M3 used SDF-1/CS/β-GP membrane(SDF-1 was 100, 200, 400 ng/mL respectively). After culture for 6, 12 and 24 h, the cells under the membrane were preserved and Giemsa stained and counted. The absorbance(OD) value was measured by MTT method to calculate the cell proliferation rate. SPSS 19.0 was used for multi-factor analysis of variance.
Results :
After adding a certain amount of SDF-1 into CS/β-GP solution, the gel time did not change significantly(P>0.05). The SDF-1/CS/β-GP membrane was translucent and porous at 37 ℃. In this experiment, the volumic mass of SDF-1 released by SDF-1/CS/β-GP composite membrane increased gradually with the experimental time(P<0.01). Transwell cell chemotaxis test showed that the number of BMSCs cells with directional migration increased with the prolongation of observation time(P<0.01) and the increase of SDF-1 volumic mass(P<0.01). In MTT test, the OD value of migration cell solution increased with the prolongation of time(P<0.01) and the increase of SDF-1 volumic mass(P<0.01).
Conclusion
The SDF-1/CS/β-GP composite membrane has a porous structure and biological activity of chemotactic BMSCs directional migration. It is a potential membrane for guided tissue regeneration.
3.Effect of small nuclear ribonucleoprotein polypeptide A on the malignant biological behavior of hepatocellular carcinoma cells and its mechanism
YAO Menglin ; WANG Ruhua ; CUI Xiaomeng ; CHEN Yifei ; GUO Dan ; HE Shuixiang ; LI Yarui
Chinese Journal of Cancer Biotherapy 2023;30(12):1074-1081
[摘 要] 目的:探究小核核糖核蛋白多肽A(SNRPA)在肝细胞癌(HCC)组织和细胞中的表达及其调控HCC细胞HepG2和Hep3B恶性生物学行为的作用及其机制。方法: 数据库分析SNRPA在泛癌组织中的表达及其与病理分期、HCC患者预后的相关性。常规培养HepG2和Hep3B细胞,将si-NC,si-SNRPA#1、si-SNRPA#2转染HepG2和Hep3B细胞,实验分为si-NC组、si-SNRPA#1组和si-SNRPA#2组;将SNRPA-vector和SNRPA-oe载体转染LO2细胞,分为SNRPA-vector组和SNRPA-oe组。qPCR法检测正常肝细胞和肝癌细胞以及转染各组HepG2和Hep3B细胞中SNRPA mRNA的表达,MTT法、Transwell法和WB法分别检测转染后各组HepG2和Hep3B细胞的增殖、迁移和侵袭能力以及EMT相关蛋白表达的变化。结果: 数据库分析显示,SNRPA mRNA在多数肿瘤组织中均呈高表达(均P<0.001)且与病理分期有关联(P<0.05或P<0.01)。SNRPA在HCC组织和细胞中均呈高表达(P<0.05或P<0.01),且与HCC患者的预后有关联(P<0.01)。敲减SNRPA表达明显抑制HepG2和Hep3B细胞增殖(P<0.05或P<0.01)而过表达SNRPA则能促进LO2细胞增殖(P<0.01),敲减SNRPA表达明显抑制HepG2和Hep3B细胞的迁移和侵袭能力(均P<0.01),明显促进E-cadherin的表达上调(P<0.01),而抑制N-cadherin、vimentin的表达(P<0.01)。结论: SNRPA在HCC组织及细胞中呈明显高表达,其可能通过调控上皮间质转化(EMT)进程进而促进HepG2和Hep3B细胞的增殖、迁移和侵袭。
4.Preliminary study on the expression and function of bone morphogenetics protein 7 in ESCC
Mengfei Sun ; Hongfang Huang ; Yuhang Dong ; Huakun Zhang ; Ziru Zhou ; Qi Sun ; Wenyan Guan ; Linyue Zhao ; Xiaobin Cui ; Yunzhao Chen ; Feng Li
Acta Universitatis Medicinalis Anhui 2023;58(6):995-1000,1010
Objective :
To analyze the expression and immune infiltration levels of the BMP7 gene ( BMP7) in e- sophageal squamous cell carcinoma(ESCC) .
Methods :
Initially,in 274 cases of ESCC and 242 cases of normal tissues,the level of BMP7 was verified by immunohistochemistry ,and the relationship between the expression difference and the survival cycle and clinical pathological characteristics of patients with ESCC was explored,and BMP7 overexpression plasmid transfection of ESCC cells was established,and the effect of BMP7 on the biological behavior of ESCC cells was examined by CCK-8,Clone,and Transwell.
Results :
BMP7 expression in normal e- sophageal tissues was higher than that of ESCC(P<0. 001) ,the expression level of BMP7 was correlated with the degree of differentiation of patients(P = 0. 006) and TNM staging(P <0. 001) ,and the survival of patients with high expression of BMP7 exceeded that of patients with low BMP7 (P = 0. 041) ,and the experiments of CCK-8 and Clone showed that the proliferation effect of cells in the overexpressed BMP7 group was lower than that of the control group.Transwell experiments confirmed that the cell invasion migration capacity of the overexpressed BMP7 group was less than that of the control one.The immune infiltration results showed that BMP7 was positively correlated with macrophages(P = 0. 008) and negatively correlated with γ-δT cells(P = 0. 028) .
Conclusion
BMP7 is low in ESCC and associated with poor prognosis and immune infiltration levels in patients.
5.Study on the Pharmacodynamic Substances and Quality Control of Shenfukang II Capsules Based on Fingerprint and Network Pharmacology
YIN Jiyao ; HU Jing ; SHEN Xia ; CUI Xiaomin ; REN Hui ; QU Tong ; LI Ning ; LU Wenjin ; CHEN Zhiyong
Chinese Journal of Modern Applied Pharmacy 2023;40(13):1765-1774
OBJECTIVE To establish the fingerprint of Shenfukang Ⅱ capsule(SC-Ⅱ), and to screen out its indicative compounds for quality control combined with chemometrics methods and network pharmacology. METHODS The HPLC fingerprint of 10 batches of SC-Ⅱ was established, and similarity evaluation was analyzed by Similarity Evaluation System for Chromatographic Fingerprint of TCM(2012 A Edition) to determine common peaks; common peaks were identified through standard comparison. Chemometrics methods was used to evaluate quality of 10 batches of SC-Ⅱ, and network pharmacology was used to screen out core targets and pathways of SC-Ⅱ. Combined with the above results, indicative compounds for quality control of SC-Ⅱ were screened out. RESULTS A total of 37 common peaks were obtained in the HPLC fingerprint, the similarity of samples was greater than 0.97. Twenty compounds were identified as morroniside, loganin, paeoniflorin and et al. The samples were divided into two categories by chemical pattern recognition, salvianolic acid B, morroniside, salvianolic acid A and paeoniflorin were differential marker compounds for SC-Ⅱ. Network pharmacology predicted that active compounds such as salvianolic acid B, paeoniflorin and morroniside might exert pharmacological effects through 45 core targets and 15 main pathways. The research preliminary preliminarily predicted that morroniside, paeoniflorin and salvianolic acid B were quality control index components for SC-II. CONCLUSION The established HPLC fingerprint method is simple and good repeatability. The quality control indicative compounds of SC-Ⅱ can provide a basis for its quality control.
6.lncRNA SNHG10 promotes the invasion and migration of colorectal cancer SW620 cells by targeting miR-532-3p
LI Suzhena ; ZHAO Weifengb ; CUI Facaia ; ZHENG Peiminga
Chinese Journal of Cancer Biotherapy 2022;29(2):93-100
[Abstract] Objective: To investigate the expression of long non-coding RNA (lncRNA) small nucleolar RNA host gene 10 (SNHG10) in colorectal cancer tissues and cells and its effect on the invasion and migration of colorectal cancer cells and the underlying mechanism. Methods: From January 2018 to December 2019, 78 pairs of colorectal cancer tissue and para-cancerous tissues from the patients who had radical colorectal cancer resection in Henan Provincial People39;s Hospital were collected. Quantitative PCR (qPCR) was performed to quantify the levels of lncRNA SNHG10 and miR-532-3p in colorectal cancer tissues, colorectal cancer cell lines (SW480, SW620, HT-29 and LoVo) and human normal colorectal mucosal FHC cells; and their correlations with the clinicopathological features of colorectal cancer patients were further analyzed. Dual-luciferase reporter gene assay was used to validate the targeted relationship between lncRNA SNHG10 and miR-532-3p. After transfection with si-SNHG10 or miR-532-3p mimic or co-transfection of si-SNHG10 and miR-532-3p inhibitor, the invasion and migration of SW620 cells were detected by Transwell assay, and the protein expression of E-cadherin, N-cadherin and vimentin were detected by WB. Results: SNHG10 was highly expressed in colorectal cancer tissues and cells (all P<0.05), and its expression was related to TNM stage and distant metastasis (all P<0.05). miR-532-3p was lowly expressed in colorectal cancer tissues and cells, and its expression was correlated with TNM stage, lymphonode metastasis and distant metastasis (all P<0.05). The expression of SNHG10 and miR-532-3p in colorectal cancer tissues was negatively correlated (r=-0.225, P=0.048). Dual-luciferase reporter gene assay confirmed that SNHG10 targetedly regulated miR-532-3p. Both down-regulation of SNHG10 and up-regulation of miR-532-3p significantly inhibited the invasion and migration of SW620 cells (all P<0.05), up-regulated the expression of E-cadherin (P<0.05), while down-regulated the expression of N-cadherin and vimentin (all P<0.05). After transfection with miR-532-3p inhibitor, the inhibitory effect of knocking down the expression of lncRNA SNHG10 on the invasion and migration of colorectal cancer cells was reversed (all P<0.05). Conclusions: LncRNA SNHG10 is highly expressed in colorectal cancer and is associated with TNM stage and distant metastasis. LncRNA SNHG10 affects the invasion and metastasis of colorectal cancer cells by targeting miR-532-3p and regulating EMT.
7.International and domestic researches about neurogenic bladder: a visualized analysis
Xiangzhi MENG ; Shenhong CUI ; Xiaoqian HOU ; Benyuan LI ; Xinru ZHANG ; Ping ZHANG ; Yunbo HAN ; Jun LENG
Chinese Journal of Rehabilitation Theory and Practice 2022;28(4):439-446
Objective To evaluate the development, hot spots and trends of the fields of neurogenic bladder.Methods The relevant articles of neurogenic bladder from January, 2000 to June, 2021 in CNKI and Web of Science were retrieved.The countries, authors, institutions, cited reference and keywords were extracted with CiteSpace to draw knowledge mapping. Results and Conclusion A total of 5 064 articles were enrolled. At present, the research on the field of neurogenic bladder is in a stable period of development, and this field has been widely concerned by scholars at home and abroad. The cooperation between domestic authors and institutions is not close enough compared with foreign countries, and domestic cooperation is more between medical schools and their respective affiliated hospitals. In the future, China can further strengthen cross-regional and cross-agency cooperation. Low-frequency electrical stimulation and sacral nerve regulation are seem to be research hotspots, and children39;s neurogenic bladder and robot-assisted technologies are also needed more attention.
8.Water Orientation Test of Alyn 2 (Chinese) and Its Reliability and Validity in Patients with Spinal Cord Injury
Yao CUI ; Fang CONG ; Jianjun LI ; Ailing ZHU ; Ming ZENG ; Long JIN ; Fengshan SI ; Bin YAO ; Wei JIA ; Dunwu XIAO ; Dongyang LI ; Kai ZHANG
Chinese Journal of Rehabilitation Theory and Practice 2018;24(11):1302-1308
Objective To translate the Water Orientation Test of Alyn 2 (WOTA2) into Chinese, and to study its reliability and validity for patients with spinal cord injury. Methods After authorizing, the English version WOTA2 scale and its training package were translated into Chinese. From January to September, 2018, 137 patients with spinal cord injury were evaluated with the Chinese version WOTA2 by two evaluators independently, and evaluated again three days later by one of the evaluators. The Cronbach39;s α, Spearman-Brown coefficient, intra-group correlation coefficient (ICC) and Kappa coefficient were calculated to evaluate the reliability. Content Validity Index (CVI) of items (I-CVI) and scale (S-CVI) were used to evaluate the content validity, and factors analysis was used to evaluate the structure validity. Results The Cronbach39;s α was 0.947 in all items of the scale, 0.890 in mental adjustment items and 0.954 in aquatic skills items. Pearson correlation coefficient of the half scales separated by odd and even items was 0.948, and the Spearman-Brown coefficient was 0.973. The ICC of test-retest was 0.965 in total score, 0.965 in centesimal system total score, 0.847 in mental adjustment score and 0.970 in aquatic skills score. The ICC of inter-testers was 0.964 in total score, 0.965 in centesimal system total score, 0.847 in mental adjustment score and 0.970 in aquatic skills score. The Kappa coefficient was 0.528 to 0.927 in test-retest and 0.528 to 0.927 in inter-testers. The I-CVI was 0.8 to 1.0 and S-CVI was 0.63. Factors analysis extracted four factors, which met the theory, and contributed 67% of cumulative variance. Conclusion The Chinese version WOTA2 is good in reliability and validity for patients with spinal cord injury, and can be used in the clinical practice of aquatic therapeutic exercise in China.
9.Application of the cystotome-assisted prechop technique performed in hard nuclear cataract phacoemulsification
International Eye Science 2017;17(3):474-477
AIM: To discuss the effect of the cystotome-assisted prechop technique performed in hard nuclear cataract phacoemulsification.
METHODS: One hundred and twenty-six patients(158 eyes)of age-related cataracts with nucleus density at grade Ⅲ-Ⅳ were randomly divided into two groups. Group A was performed a manual prechop technique using a surgeon-bent cystotome after the capsulorhexis, while group B was performed traditional phaco-chop without prechop technique. The average power(AP), actual ultrasonic time(U/S time), accumulated energy complex parameter(AECP)of machine, average density of endothelial cells, endothelial cells loss, uncorrected visual acuity(UCVA), corneal edema and intraoperative complications were compared between groups.
RESULTS: The AP, U/S time and AECP of Group A were significantly lower than that of Group B(P<0.05). At postoperative day 1, the corneal edema of Group A was slighter than the control with significant difference(P<0.05), so was the UCVA. While there was no significant difference of UCVA between groups at postoperative 1wk. The average corneal endothelium density of Group B was significantly lower than that of Group A at postoperative 1wk, and the average cell loss was higher than that of Group A. Two eyes of group A had posterior capsular rupture compared to 4 eyes of Group B.
CONCLUSION: Compared with traditional phaco-chop, the cystotome-assisted prechop technique presents shorter intraoperative ultrasound time and lower energy, while contributes to less corneal endothelial cell loss and better early postoperative UCVA.
10.Effects of Traditional Chinese Medicine Bubble Bath on Spastic Diplegia Cerebral Palsy
Dunwu XIAO ; Fang CONG ; Long JIN ; Weihong WU ; Yanli ZHANG ; Fengshan SI ; Bin YAO ; Wei JIA ; Rao CUI ; Youlin LI
Chinese Journal of Rehabilitation Theory and Practice 2014;(3):262-265
Objective To observe the effects of Traditional Chinese Medicine bubble bath on the children with spastic diplegia cerebral palsy. Methods 13 children with spastic diplegia cerebral palsy received routine rehabilitation and bubble bath (control group), while 14 children received routine rehabilitation and Traditional Chinese Medicine bubble bath (experimental group). All the children were assessed with Gross Motor Function Measure (GMFM-66) and Modified Ashworth Scale (MAS) of triceps surae muscle before and 10 weeks after treatment.Results The total score of GMFM-66 increased (P<0.001) and the MAS score decreased in both groups (P<0.01) after treatment. The dimensions B, D, and E of GMFM-66 only increased in the experimental group (P<0.05). The MAS score decreased more in the experimental group than in the control group after treatment (P<0.05). Conclusion Traditional Chinese Medicine bubble bath can improve gross motor function and reduce triceps surae muscle tension of the children with spastic diplegia cerebral palsy.


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