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1.
China Pharmacy ; (12): 452-457, 2022.
Article in Chinese | WPRIM | ID: wpr-920462

ABSTRACT

OBJECTIVE To establish the fing erprint of Temurin- 5 powder,conduct chemical pattern recognition analysis ,and determine the contents of 4 components simultaneously. METHODS The fingerprints of 10 batches of Temurin- 5 powder were established and similarity evaluation was performed by using high performance liquid chromatography (HPLC)combined with the Similarity Evaluation System of Chromatographic Fingerprints of Traditional Chinese Medicine (2012 edition);common peaks were identified by comparing with mixed substance control. The common peaks were analyzed by systematic cluster analysis and principal component analysis with SPSS 26.0 software. The HPLC method was used to determine the contents of gallic acid , geniposide,chlorogenic acid and ellagic acid in 10 batches of samples. RESULTS A total of 15 common peaks were identified from the fingerprints of 10 batches of Temurin-5 powder,and the similarity was 0.997-0.999. It was identified that peak 1 was gallic acid ,peak 3 was geniposide ,peak 5 was chlorogenic acid and peak 12 was ellagic acid. Among the 10 batches of samples , S4 and S 9 were grouped into one category ,S6-S8 were grouped into one category ,and the other batches of samples were grouped into one category. The accumulative variance contribution rate of first three principal components was 89.245%. The linear ranges of gallic acid ,geniposide,chlorogenic acid and ellagic acid were 5.55-177.5,15.98-511.5,2.56-82.0 and 13.48-431.5 μg/mL, respectively. RSDs of precision ,stability(24 h)and repeatability tests were all less than 2%(n=6 or n=7). The average recoveries were 101.56%,102.21%,98.60% and 96.62%,respectively,RSDs were 1.90%,1.61%,1.58% and 1.73%(n=6). Average contents of above components were 5.03-5.64,10.38-12.16,1.40-1.69,6.47-7.11 mg/g,respectively. CONCLUSIONS The established fingerprint is stable and feasible ,and the content determination method meets the relevant regulations. Combined with chemical pattern recognition analysis ,it can be used for the quality control of Temurin- 5 powder.

2.
Article in Chinese | WPRIM | ID: wpr-912895

ABSTRACT

Objective: To observe the clinical efficacy of combining auricular point sticking and a healthy diet to treat simple obesity in children aged 6-9 years old.Methods: A total of 190 eligible obese kids were divided into an observation group and a control group using the random number table method, with 95 cases in each group. The observation group was intervened by auricular point sticking plus guide on a healthy diet, while the control group was only provided with the guide on a healthy diet. The therapeutic efficacy was observed after intervention for three consecutive months, as well as the changes in body mass (BM), body mass index (BMI), waist circumference (WC), hip circumference (HC), and subcutaneous fat thickness. Results: After the 3-month intervention, the total effective rate was 91.6% in the observation group, versus 74.7% in the control group, and the between-group difference was statistically significant (P<0.01); in both groups, the BM, BMI, WC, HC, and subcutaneous fat thickness all decreased significantly (P<0.05), and were lower in the observation group than in the control group, showing statistical significance (P<0.05). Conclusion: Auricular point sticking plus a healthy diet is safe and effective in treating simple obesity in children, producing more significant efficacy than healthy diet intervention alone.

3.
Article in Chinese | WPRIM | ID: wpr-912719

ABSTRACT

With the continuous development of Internet related technology in recent years and the improvement of infrastructure such as software and hardware, Internet plus medical service has developed rapidly under the dual development dividends of market demand and national policy incentives. The authors analyzed the current situation and problems in the development of public hospitals′ Internet plus medical services, and explored how public hospitals combine the opportunity of " the 14th five-year plan" to achieve the optimization of Internet plus medical treatment through 4 aspects: system construction, information construction, hierarchical diagnosis and treatment, and new technology application.

4.
Article in Chinese | WPRIM | ID: wpr-910372

ABSTRACT

Objective:To compare the differences in the delineation of the gross tumor volume (GTV) and lymph nodes of nasopharyngeal carcinoma (NPC) patients using computerized tomography (CT), magnetic resonance imaging (MRI), and 18F-fluorodeoxyglucose positron emission tomography/computed tomography ( 18F-FDG PET/CT), and to investigate the optimal standard uptake value (SUV; relative to the MRI-based delineation) for the automatic delineation of GTV using PET. Methods:A total of 53 NPC patients proposing to receive radiotherapy were selected for this study. The CT, MRI, and PET images of each patient were obtained before radiotherapy. Then GTV and positive lymph nodes were delineated on these three types of images. They were individually named GTV MRI, GTV CT, GTV PET2.5 (SUV=2.5), Lymph MRI, Lymph CT, and Lymph PET2.5 and compared. The GTV ∩2.5 (overlapped GTV) was obtained through the alignment of MRI and PET/CT images. Meanwhile, GTV was delineated on PET images using thresholds of SUV=4.0, 4.5, 5.0, and 5.6, obtaining GTV PET4.0, GTV PET4.5, GTV PET5.0, and GTV PET5.6. Then their volume and Dice similarity coefficients (DSCs) were compared. Results:Compared to GTV MRI, GTV CT decreased by 1.73% ( P>0.05) and GTV PET2.5 increased by 21.34% ( t=-3.52, P < 0.05) in the three types of images. The volume of Lymph PET2.5 was 1.61 and 1.87 times the volume of Lymph MRI and Lymph CT, respectively ( t=-4.12, -5.18; P< 0.05). The volume of high-SUV lymph nodes was 4.07 times the volume of lymph nodes with low SUVs or SUV=0 ( t=5.50, P< 0.05) on PET images. The DSC between GTV PET4.0and GTV MRI was 0.78 ± 0.27, which was lower than that between GTV PET2.5 and GTV MRI (0.84 ± 0.18). However, GTV PET4.0 approximated to GTV ∩2.5 ( P>0.05). Conclusions:Compared to CT and 18F-FDG PET/CT, MRI shows more accurate boundaries of GTV and lymph nodes. When 18F-FDG PET/CT was adopted to automatically delineate GTV, the GTV delineated using SUV=4.0 was closer to GTV MRI.

5.
Article in Chinese | WPRIM | ID: wpr-908118

ABSTRACT

Objective:To investigate the relationships of expectation gap of postpartum support with perceived stress and postpartum depression, and the mediating role of the former in the association between the latter two.Methods:A total of 278 convenient sample of puerperas at 6-8 weeks after delivery from June to August in 2019 in Shenzhen Hospital of Southern Medical University were investigated with the Perceived Stress Scale, the Chinese version of the Postpartum Social Support Questionnaire, and the Edinburgh Postnatal Depression Scale. Structure equation model was established and Bootstrap method was used to explore the direct and indirect effects of these variables.Results:The perceived stress score, and expectation gap of postpartum support score were (26.50±2.50), (25.30±5.79), respectively; and the postpartum depression score was (14.60±2.10). The incidence of postpartum depression(defined as postpartum depression score ≥10) was 37.4%(104/278). Path analysis showed that the model was well fitted (χ 2/ df was 0.265, Tucker-Lewis index was 1.0, comparative fit index was 1.0,root mean square of approximate error was 0, root mean square of standard deviation and residual error was 0.04). Perceived stress positively correlated with expectation gap of postpartum support, and postpartum depression ( P<0.05). Expectation gap of postpartum support positively correlated with postpartum depression ( P<0.05). The effect of perceived stress on postpartum depression was partially mediated by expectation gap of postpartum support (Estimate was 0.285, 95% CI 0.197-0.352). Conclusions:Perceived stress had direct or indirect effect via expectation gap of postpartum support on postpartum depression. This indicated that the medical staff can build a comprehensive support system, reduce the experience of perceived stress among puerperas, improve social support satisfaction, and thus reduce the incidence of postpartum depression.

6.
Journal of Clinical Hepatology ; (12): 2951-2956, 2021.
Article in Chinese | WPRIM | ID: wpr-906897

ABSTRACT

Nonalcoholic fatty liver disease (NAFLD) is a multifactorial pathological disease. Although the molecular mechanism of the onset of NAFLD has not been fully elucidated, oxidative stress is believed to play a key role in this process and can affect a variety of physiological functions. In recent years, the use of active components of traditional Chinese medicine in the prevention and treatment of NAFLD has become a research hotspot. This article summarizes the role of active components of traditional Chinese medicine in the treatment of NAFLD from the perspective of anti-oxidative stress effect, so as to provide a scientific basis for the prevention and treatment of NAFLD.

7.
Article in Chinese | WPRIM | ID: wpr-906304

ABSTRACT

Objective:To observe the clinical efficacy and mechanism of Shugan Bushen Huoxue decoction in the treatment of perimenopausal perio syndrome (PPS) with kidney deficiency, liver depression and blood stasis syndrome. Method:One hundred and twelve patients were randomly divided into control group and observation group according to random number table. Both groups took Remifemin orally, 1 tablet/time, by swallowing in the morning and evening. The patients in control group additionally took Fuke Yangrong capsules, 4 capsules/time, 3 times/day. The patients in observation group additionally took Shugan Bushen Huoxue decoction, 1 dose/day. The course of treatment was 12 weeks in both groups. Before and after treatment, scores were graded for modified Kupperman index (KI), traditional Chinese medicine (TCM) syndromes, menopausal quality of life scale (MENQOL), self-rating depression scale (SDS) and self-rating anxiety scale (SAS). Follicle stimulating hormone (FSH),luteinizing hormone (LH),serum estrogen (E<sub>2</sub>), 5-hydroxytryptamine (5-HT), dopamine (DA), norepinephrine (NE), 5-hydroxyindole acetic acid (5-HIAA), endothelin (ET), and nitric oxide (NO) levels were detected before and after therapy. Result:In the observation group, scores of KI, TCM syndrome, SDS and SAS were lower than those in the control group (<italic>P</italic><0.01). All dimensions of MENQOL scores in the observation group were lower than those in the control group (<italic>P</italic><0.01). FSH and LH levels in the observation group were lower than those in the control group, and the E<sub>2</sub> level was higher than that of the control group (<italic>P</italic><0.01). The levels of 5-HT, 5-HIAA, DA and NE in the observation group were higher than those in the control group (<italic>P</italic><0.01). The ET level in the observation group was lower than that in the control group, and the NO level was higher than that of the control group (<italic>P</italic><0.01). In observation group,the clinical efficacy was superior to that in control group (<italic>Z</italic>=2.073<italic>,P</italic><0.05), and the efficacy of TCM syndromes was also superior to that in control group (<italic>Z</italic>=2.086<italic>,P</italic><0.05). Conclusion:Shugan Bushen Huoxue decoction in the treatment of PPS in patients with kidney deficiency and liver depression and blood stasis can significantly reduce clinical symptoms, depression and anxiety, regulate the sex hormones, vasomotor factors and monoamine neurotransmitters levels, and improve the quality of life, with obvious clinical efficacy and high safety, so it is worthy of clinical use.

8.
Article in English | WPRIM | ID: wpr-922768

ABSTRACT

Chansu has demonstrated adverse reactions in clinical settings, which is associated with its toxicity and limits its clinical applications. But there are methodological limitations for drug safety evaluation. In the current study, ultra-high performance liquid chromatography, lipidomic profiling, and molecular docking were used to systemically assess Chansu-induced acute inflammatory irritation and further identify the underlying drug targets. Compared with the EtOAc extract, Chansu water fraction containing indolealkylamines caused acute inflammatory irritation in rats, including acute pain (spontaneous raising foot reaction), and inflammation (paw edema). At the molecular level, lipids analysis revealed significantly higher levels of pro-inflammatory mediators of the COX and LOX pathways. However, anti-inflammatory mediators from the CYP 450, ALA, and DHA pathways markedly decreased after exposure to Chansu water fraction. Moreover, four indolealkylamines from Chansu showed a high theoretical affinity to a known irritation target, 5-HT


Subject(s)
Animals , Bufanolides , Edema/drug therapy , Inflammation , Lipidomics , Molecular Docking Simulation , Rats , Water
9.
Article in Chinese | WPRIM | ID: wpr-921808

ABSTRACT

Traditional Chinese Medicine Systems Pharmacology Database and Analysis Platform(TCMSP) and Bioinformatics Analysis Tool for Molecular Mechanism of Traditional Chinese Medicine(BATMAN-TCM) were searched for the effective components and targets of Shaofu Zhuyu Decoction. The relevant targets for endometriosis(EMT) and dysmenorrhea were retrieved from the Comparative Toxicogenomics Database(CTD), Therapeutic Target Database(TTD), GeneCards, and DisGeNET with the terms of "endometriosis" and "dysmenorrhea". Cytoscape 3.8.0 was employed to construct the drug-active component-therapeutic target network. A protein-protein interaction(PPI) network was established by STRING 11.0. Analyze Network, the plug-in in the Cytoscape 3.8.0, was used to calculate the topological parameters of the nodes and screen out the critical proteins in the network. The potential therapeutic targets were imported into RStudio and subjected to Gene Ontology(GO) and Kyoto Encyclopedia of Genes and Genomes(KEGG) enrichment analyses with clusterProfiler package. Finally, the AutoDock Vina(Vina) platform was used for molecular docking to predict the binding degree of the main active components of Shaofu Zhuyu Decoction to key targets. As revealed by the screening results, 136 active components and 380 targets of Shaofu Zhuyu Decoction were obtained. Additionally, there were 1 627 targets related to EMT and 142 targets related to dysmenorrhea with 107 common targets, and 42 potential therapeutic targets of Shaofu Zhuyu Decoction for the treatment of EMT-induced dysmenorrhea. The targets such as interleukin 6(IL6) and prostaglandi-nendoperoxide synthase-2(PTGS2) were pivotal in the biological network of Shaofu Zhuyu Decoction intervention in EMT-induced dysmenorrhea, which involved multiple signaling pathways, including inflammation, hormones, and those promoted cell proliferation [e.g., mitogen-activated protein kinase(MAPK) and phosphatidylinositol-3 kinase(PI3 K)-protein kinase B(AKT)]. The results of molecular docking showed that the active components of Shaofu Zhuyu Decoction had good binding capacities to key targets such as IL6 and PTGS2. The findings of this study demonstrated that Shaofu Zhuyu Decoction could treat EMT-induced dysmenorrhea through multiple targets and multiple pathways, which could provide new ideas for investigating the underlying mechanism of Shaofu Zhuyu Decoction in the treatment of EMT-induced dysmenorrhea.


Subject(s)
Drugs, Chinese Herbal , Dysmenorrhea/genetics , Female , Humans , Medicine, Chinese Traditional , Molecular Docking Simulation
10.
Acta Pharmaceutica Sinica B ; (6): 2900-2913, 2021.
Article in English | WPRIM | ID: wpr-888893

ABSTRACT

Malaria still threatens global health seriously today. While the current discoveries of antimalarials are almost totally focused on single mode-of-action inhibitors, multi-targeting inhibitors are highly desired to overcome the increasingly serious drug resistance. Here, we performed a structure-based drug design on mitochondrial respiratory chain of

11.
Article in Chinese | WPRIM | ID: wpr-878702

ABSTRACT

Objective To investigate the nutritional literacy levels of the takeaway platform practitioners in Chengdu,the takeaway food nutrients,and the correlation between them.Methods We employed a multi-stage random sampling method to investigate the nutritional literacy levels of 100 takeaway platform restaurants in the main urban area of Chengdu and examined the nutritional components of hot set meals in each restaurant.A questionnaire survey was conducted on the nutritional literacy levels of chefs and food matching staff.The correlations of nutrient energy supply rationality with nutritional literacy level and set meal price were then analyzed.Results The total pass rate of nutrition knowledge of chefs/food matching staff was 61.0%.Only 2.0% of the set meals had reasonable total energy supply.The set meals with reasonable energy supply of available carbohydrate,protein,and fat accounted for 3.0%,62.0%,and 21.0%,and those with over energy supply accounted for 97.0%,26.0%,and 73.0%,respectively.The rest set meals provided insufficient energy.There was a positive correlation between the nutritional literacy level and the rationality of protein energy supply(r=0.414,P=0.003).Conclusions The nutritional literacy levels of chefs/food matching staff of takeaway food restaurants in Chengdu are moderate.The hot set meals on the takeaway platform have the problem of excess energy supply.The nutrition knowledge of chefs/food matching staff cannot effectively satisfy rational nutrition matching.The nutritional literacy levels of chefs/food matching staff showed no significant correlation with the rationality of nutrient energy supply.


Subject(s)
Fast Foods , Humans , Literacy , Meals , Nutrients , Restaurants
12.
Article in Chinese | WPRIM | ID: wpr-878701

ABSTRACT

Objective To investigate the current status of nutritional knowledge and skills of fast-food takeout practitioners in Chengdu City,so as to provide evidence for nutritional literacy education among takeout practitioners.Methods A questionnaire survey was conducted among 832 employees of fast-food takeout restaurants in Chengdu from April to September in 2019 through a multi-stage random sampling strategy.Results The awareness rate of nutritional knowledge of fast-food takeout practitioners in Chengdu was 77.28%,and the correct rates of answers to daily oil intake for adults,daily drinking water for adults and daily salt intake for adults in the Dietary Guidelines for Chinese Residents were respectively 17.43%,22.60% and 25.36%.In addition,the proportion of practitioners with the ability to estimate the recommended intake of food for a meal,the ability to estimate condiments intake and the ability to interpret nutrition labels were 8.77%,8.77% and 15.02%,respectively.The awareness rate of nutritional knowledge was the lowest(71.47%)in the practitioners aged≤25 and the highest(84.53%)in those aged 26-39,and the difference was statistically significant(χ


Subject(s)
Adult , Feeding Behavior , Humans , Nutritional Status , Restaurants , Surveys and Questionnaires
13.
Chinese Journal of Lung Cancer ; (12): 557-566, 2021.
Article in Chinese | WPRIM | ID: wpr-888589

ABSTRACT

BACKGROUND@#Autophagy related genes (ARGs) regulate lysosomal degradation to induce autophagy, and are involved in the occurrence and development of a variety of cancers. The expression of ARGs in tumor tissues has a great prospect in predicting the survival of patients. The aim of this study was to construct a prognostic risk score model for lung adenocarcinoma (LUAD) based on ARGs.@*METHODS@#5,786 ARGs were obtained from GeneCards database. Gene expression profiles and clinical data of 395 LUAD patients were collected from The Cancer Genome Atlas (TCGA) database. All ARGs expression data were extracted, and The ARGs differentially expressed were identified by R software. Survival analysis of differentially expressed ARGs was performed to screen for ARGs with prognostic value, and functional enrichment analysis was performed. The least absolute selection operator (LASSO) regression and Cox regression model were used to construct a prognostic risk scoring model for ARGs. The receiver operating characteristic (ROC) curve was drawn to obtain the optimal cut-off value of risk score. According to the cut-off value, the patients were divided into high-risk group and low-risk group. The area under curve (AUC) and the Kaplan-Meier survival curve was plotted to evaluate the model performance, which was verified in external data sets. Finally, univariate and multivariate Cox regression analysis was applied to evaluate the independent prognostic value of the model, and its clinical relevance was analyzed.@*RESULTS@#Survival analysis, Lasso regression and Cox regression analysis were used to construct a LUAD prognostic risk score model with five ARGs (ADAM12, CAMP, DKK1, STRIP2 and TFAP2A). The survival time of patients with low-risk score in this model was significantly better than that of patients with high-risk score (P<0.001). The model showed good prediction performance for LUAD in both the training set (AUCmax=0.78) and two external validation sets (AUCmax=0.88). Risk score was significantly associated with the prognosis of LUAD patients in univariate and multivariate Cox regression analyses, suggested that risk score could be a potential independent prognostic factor for LUAD. Correlation analysis of clinical characteristic showed that high risk score was closely associated with high T stage, high tumor stage and poor prognosis.@*CONCLUSIONS@#We constructed a LUAD risk score model consisting of five ARGs, which can provide a reference for predicting the prognosis of LUAD patients, and may be used in combination with tumor node metastasis (TNM) staging for prognosis prediction of LUAD patients in the future.

14.
Article in Chinese | WPRIM | ID: wpr-887892

ABSTRACT

Objective To investigate the knowledge about human papillomavirus(HPV)and its vaccines,HPV vaccination status,and vaccination willingness among the freshmen majoring in liberal arts,sciences,and medicine in western China,so as to provide evidence-based suggestions for health education among university students and to increase their vaccination. Methods By convenience sampling,stratified sampling,and cluster sampling,an online questionnaire survey was conducted among freshmen in a comprehensive university in Chengdu.The differences among the groups were compared by


Subject(s)
Alphapapillomavirus , China , Cross-Sectional Studies , Female , Health Knowledge, Attitudes, Practice , Humans , Male , Papillomaviridae , Papillomavirus Infections/prevention & control , Papillomavirus Vaccines , Students , Surveys and Questionnaires , Universities , Uterine Cervical Neoplasms , Vaccination
15.
Article in Chinese | WPRIM | ID: wpr-886103

ABSTRACT

Objective To explore the current status and relevance of job burnout and social support among medical staff in the community of Hospitals under the control of Epidemic prevention and control and to provide scientific basis for targeted intervention measures. Methods The job burnout scale and social support scale were used to investigate and analyze the job burnout and social support of medical staff in Dongxihu District, Wuhan. Results Among 294 medical staff, 163 cases (55.44%) had occupational burnout, among which, mild to moderate and severe occupational burnout accounted for 46.26% and 9.18% respectively. The results of partial correlation analysis showed that the total score and various dimensions of the subject's job burnout were negatively correlated with the total score of the subject's social support, subjective support, and support utilization ( P<0.05). Conclusion In the context of normalized epidemic prevention and control of Epidemic prevention and control, medical staff suffered from severe job burnout; the social support of medical staff may affect their job burnout.

16.
Article in Chinese | WPRIM | ID: wpr-885977

ABSTRACT

Objective: To explore the effect of herb-partitioned moxibustion (HPM) on tight junctions (TJs) of intestinal epithelial cells in Crohn disease (CD) mediated by tumor necrosis factor-α (TNF-α)-nuclear factor kappa B (NF-κB)-myosin-light- chain kinase (MLCK) pathway. Methods: Forty-eight male Sprague-Dawley rats were randomly divided into a normal control (NC) group, a model control (MC) group, an HPM group and a mesalazine (MESA) group, with 12 rats in each group. Trinitrobenzene sulfonic acid (TNBS) was administered to establish CD models. When the model was confirmed a success, the HPM group rats were treated with HPM at Tianshu (ST 25) and Qihai (CV 6), while the MESA group rats were given MESA solution by lavage. When the intervention finished, the colonic epithelial tissues were separated, purified and cultured in each group to establish the intestinal epithelial barrier model in vitro, and TNF-α was added (100 ng/mL) in the culture medium and maintained for 24 h to establish an increased epithelial permeability model. Transepithelial electrical resistance (TEER) was used to examine the permeability of the barrier; Western blot was used to observe the expressions of the proteins related to TJs of intestinal epithelial cells mediated by TNF-α-NF-κB-MLCK pathway; immunofluorescence staining was used to observe the expressions and distributions of tight junction proteins in the intestinal epithelium. Results: After TNF-α induction, compared with the MC+TNF-α group, the TEER value increased significantly in the HPM+TNF-α and MESA+TNF-α groups (both P<0.001); the expressions of nuclear factor kappa B (NF-κB) p65, MLCK, myosin light chain (MLC), tumor necrosis factor receptor-associated factor 6 (TRAF6) and receptor interaction protein-1 (RIP1) decreased significantly (P<0.01 or P<0.05), and the expression of zinc finger protein A20 (A20) increased significantly (P<0.01); the expressions of occludin, claudin-1, zonula occludens protein 1 (ZO-1) and F-actin also increased significantly (all P<0.01). Compared with the MESA+TNF-α group, the expressions of MLC, occludin, claudin-1, ZO-1 and F-actin increased significantly in the HPM+TNF-α group (P<0.01 or P<0.05). Conclusion: HPM can protect or repair the damage of intestinal epithelial barrier in CD rats, which may be achieved through modulating the abnormal TJs in intestinal epithelium mediated by TNF-α-NF-κB-MLCK pathway.

17.
Article in Chinese | WPRIM | ID: wpr-885575

ABSTRACT

A 44-year-old pregnant woman (G5P3) who had delivered two children with DMD was admitted and underwent prenatal diagnosis at Peking Union Medical College Hospital in 2019. (1) The karyotype of the fetus in 2019 was 47,XXY. The fluorescence in situ hybridization (FISH) result showed a nucish(CSPX×2, CSPY×1)[100] and multiplex ligation-dependent probe amplification (MLPA) suggested sex chromosome abnormality. Based on the above results, the fetus was diagnosed with Klinefelter syndrome. Fetal short tandem repeat (STR) linkage analysis and Sanger sequencing indicated a heterozygous mutation of c.9543delG(p.Trp3181CysfsTer2). (2) Sanger sequencing of the proband found a novel frameshift mutation of c.9543delG(p.Trp3181CysfsTer2 ) in exon 65 of the DMD gene. (3) The male fetus performing prenatal diagnosis in 2008 was found to have the same maternal gene markers as the proband with the same genotype. While the genotype of the fetus in 2009 obtained a different maternal gene marker from the proband and did not detect the same DMD gene mutation. This fetus was delivered at full term and was good during follow-up. (4) The elder brother and cousin of the proband had the same frameshift mutation in exon 65 of the DMD gene as the proband. The mother of the proband was a heterozygous carrier of the mutation.

18.
Article in Chinese | WPRIM | ID: wpr-885269

ABSTRACT

Objective:To observe the expression patterns of miR-195 and DLL4 in colorectal cancer, and to explore the relationship between miR-195 and DLL4 and clinicopathological parameters and prognosis of patients with colorectal cancer.Methods:The relative expression of miR-195 in 56 colorectal cancer tissues was detected by real-time fluorescent quantitative PCR the expression of DLL4 protein and tumor microvessel density (MVD) were detected by bloting and immunohistochemistry. Colon cancer cell line SW480 was treated with miR-195. The expression of DLL4, Jagged1, (the intracellular domain of notch, NICD), CyclinD1, Hes1, Bcl-2 and NF-kB were detected by bloting.Results:The expression level of DLL4 protein in colorectal cancer tissues was significantly higher than that in normal intestinal mucosa (30/56 vs.16/56, t=5.323, P=0.018). The expression level of miR-195 was significantly lower than that in normal intestinal mucosa (36/56 vs.20/56, t=2.371, P=0.008). The expression of DLL4 was negatively correlated with the expression of miR-195 ( r=- 0.881, P=0.015) , which was closely related to the differentiation degree, lymph node metastasis and TNM stage . The prognosis of patients with high expression of DLL4 was significantly worse than that with low expression of DLL4 ( P=0.013). The prognosis of patients with low expression of miR-195 was worse than that with high expression of miR-195 ( P=0.009) . Conclusion:The antagonistic expression of miR-195 and Notch might be closely related to the occurrence and development of colorectal cancer, which can be used as a new reference index for prognosis of colorectal cancer.

19.
Article in English | WPRIM | ID: wpr-878338

ABSTRACT

Objective@#Exposure to microgravity results in postflight cardiovascular deconditioning in astronauts. Vascular oxidative stress injury and mitochondrial dysfunction have been reported during this process. To elucidate the mechanism for this condition, we investigated whether mitochondrial oxidative stress regulates calcium homeostasis and vasoconstriction in hindlimb unweighted (HU) rat cerebral arteries.@*Methods@#Three-week HU was used to simulate microgravity in rats. The contractile responses to vasoconstrictors, mitochondrial fission/fusion, Ca @*Results@#An increase of cytoplasmic Ca @*Conclusion@#The present results suggest that mitochondrial oxidative stress enhances cerebral vasoconstriction by regulating calcium homeostasis during simulated microgravity.


Subject(s)
Animals , Calcium/metabolism , Cerebral Arteries , Homeostasis , Male , Mitochondria/physiology , Myocytes, Smooth Muscle/physiology , Oxidative Stress , Rats , Rats, Sprague-Dawley , Vasoconstriction/physiology , Weightlessness Simulation
20.
Acta Physiologica Sinica ; (6): 160-174, 2021.
Article in Chinese | WPRIM | ID: wpr-878245

ABSTRACT

Vascular smooth muscle cell (vSMC) is the predominant cell type in the blood vessel wall and is constantly subjected to a complex extracellular microenvironment. Mechanical forces that are conveyed by changes in stiffness/elasticity, geometry and topology of the extracellular matrix have been indicated by experimental studies to affect the phenotype and function of vSMCs. vSMCs perceive the mechanical stimuli from matrix via specialized mechanosensors, translate these stimuli into biochemical signals controlling gene expression and activation, with the consequent modulation in controlling various aspects of SMC behaviors. Changes in vSMC behaviors may further cause disruption of vascular homeostasis and then lead to vascular remodeling. A better understanding of how SMC senses and transduces mechanical forces and how the extracellular mechano-microenvironments regulate SMC phenotype and function may contribute to the development of new therapeutics for vascular diseases.


Subject(s)
Biophysics , Cells, Cultured , Extracellular Matrix , Humans , Muscle, Smooth, Vascular , Myocytes, Smooth Muscle , Phenotype , Vascular Remodeling
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