1.Networked health information on diabetes: layer analysis
Mengmeng WEI ; Jingdong MA ; Chenxi XIA
Chinese Journal of Health Management 2013;7(6):394-397
Objective Networked health information on diabetes updated by some websites was evaluated to provide evidence for its improvement.Methods Twenty-four domestic diabetes-related websites were identified,and primary index (media index,health information index and diabetes information index) and secondary index (practicability index and novelty index) were evaluated by using hierarchal analysis method.Results Of three primary index,compared with media and health information index,diabetes information index showed higher scores.Moreover,health information and diabetes information had strong causality.For the secondary index,practicability and novelty got relatively lower scores.The website Diabetic Club and Health for All got the highest (3.2) and the slowest scores (1.7),respectively.Conclusion At present,domestic diabetes-related websites may be far from satisfaction and need improvement in technology and human resources and more inputs.
2.Pharmacokinetic behaviors of total flavonoids from Epimedii Folium in osteoporotic rats in vivo
Congyan LIU ; Xia GAO ; Yan CHEN ; Mengmeng HUANG ; Ding QU
Chinese Traditional Patent Medicine 2017;39(8):1595-1600
AIM To investigate the pharmacokinetic behaviors of total flavonoids from Epimedii Folium in osteoporotic rats in vivo.METHODS Twelve rats were divided into model group and sham group,after which the osteoporotic rat model was established by removing bilateral ovaries.After intragastric administration with total flavonoids (500 mg/kg),HPLC-DAD was applied to detecting the plasma concentrations of total flavonoids' prototype glycosides (epimedin A,epimedin B,epimedin C,icariin) and their metabolites (sagittatoside A,sagittatoside B,2-O-rhamnosylicariside Ⅱ,baohuoside Ⅰ,icaritin) at thirteen time points (0.083,0.25,0.5,0.75,1,2,3,4,6,8,12,24 and 48 h),then the plasma concentration-time curves were drawn,followed by the calculation of pharmacokinetic parameters.RESULTS Doubled peaks were observed in the plasma concentration-time curves of total flavonoids' prototype glycosides and their metabolites in both groups.Compared with the sham group,the integrated AUC and Cmax in the model group were significantly decreased (P < 0.01),as well as the prolonged t1/2 (P < 0.01).CONCLUSION The in vivo absorption and metabolism of total flavonoids from Epimedii Folium are much slower in the state of osteoporosis,thus affects the efficacy.
3.Study of Abnormal Heart Rate Variability and Its Acupuncture Intervention in Anxiety Disorder
Xia XIAO ; Wei HE ; Yanfei JIA ; Mengmeng YANG ; Jingjin WEI ; Hong YAO ; Qizhi ZHOU
Shanghai Journal of Acupuncture and Moxibustion 2015;(6):592-594
Heart rate variability (HRV) is a reliable, innocuous and sensitive new index to measure cardiac autonomic nervous function. Anxiety disorder is often accompanied by autonomic nerve dysfunction and its main sign is abnormal HRV. Acupuncture can affect HRV indices, correct abnormal HRV and improve cardiac autonomic nerve dysfunction to relieve anxiety. This article sorts out and analyzes recent years’ studies on abnormal HRV in anxiety disorder, the effect of acupuncture on HRV and acupuncture regulation of abnormal HRV in anxiety disorder to provide a therapeutic basis for clinical acupuncture intervention in abnormal HRV in anxiety disorder.
4.Total Flavone of Hawthorn Leaf inhibits neuronal apoptosis in brain tissue of rat models of chronic cerebral ischemia
Rongfang TAN ; Aihua XIA ; Xiaoguang WU ; Nana CAO ; Mengmeng LI ; Tiange ZHANG ; Yiru WANG ; Zhiling YUE
Chinese Journal of Tissue Engineering Research 2014;(49):7879-7883
BACKGROUND: Cerebrovascular disease often causes dysfunction of the brain nerve, and nerve cel apoptosis is the important factor of cerebral nerve dysfunction. The excessive expression of c-fos can block the transduction of intracelular signal so that producing some apoptosis-promoting factors, which involve in nerve cel apoptosis process after ischemia injury of brain. Bcl-2 is an inhibited factor. It might to be the key to treat ischemic cerebrovascular disease by inhibiting or reducing the apoptosis of nerve cels after ischemia injury. OBJECTIVE: To investigate the therapeutic effect and mechanism of the Total Flavone of Hawthorn Leaf on chronic cerebral ischemia rats. METHODS: A total of 72 healthy male Sprague-Dawley rats were randomly divided into sham surgery group, model group, Total Flavone of Hawthorn Leaf group and ginkgo leaf group. Permanent bilateral carotid artery ligation was used to prepare chronic cerebral ischemia model in the model group, Total Flavone of Hawthorn Leaf group and ginkgo leaf group. Total Flavone of Hawthorn Leaf group and ginkgo leaf group respectively received 140 mg/kg Total Flavone of Hawthorn Leaf and 12.3 mg/kg ginkgo leaf intragastricaly for 36 days from 36 days after model induction. Model group and sham surgery group received 3.5 mL/kg physiological saline intragastricaly. RESULTS AND CONCLUSION: Compared with the model group, the expression of c-fos protein significantly deceased in the Total Flavone of Hawthorn Leaf group (P < 0.01), Bcl-2 expression levels significantly increased (P < 0.01), and Ca2+ content decreased (P < 0.05). Moreover, no significant difference in above indexes was detected between Total Flavone of Hawthorn Leaf group and ginkgo leaf group (P> 0.05). These data indicated that the protective effect of Total Flavone of Hawthorn Leaf on chronic cerebral ischemia was associated with its inhibition of neuronal apoptosis. Its mechanism of anti-apoptosis might be associated with up-regulating expression of Bcl-2, down-regulating expression of c-fos and decreasing Ca2+ content in brain.
5. The application of checklist for nursing handover in emergency department
Xia SHEN ; Yueguang DAI ; Nannan ZHANG ; Lei WANG ; Mengmeng FANG ; Lulu XIU
Chinese Journal of Practical Nursing 2019;35(18):1416-1419
Objective:
To explore the effects of checklist for nursing handover in emergency department.
Methods:
A total of 48 emergency department nurses were recruited by convenient sampling method. We implemented nursing bedside handover checklist four months, the quality of the nursing handover and nurses′ mastery of the patients′ condition and the patients′ satisfaction were compared before and after the implementation.
Results:
After four
6.Expression of miR-4695-5p in the serum of colorectal cancer patients and the mechanism of its effect on the proliferation and invasion of colorectal cancer cells
Mengmeng CAI ; Zhanhui WANG ; Zongbin SUN ; Xiao HAN ; Bi WANG ; Tianming XIA
International Journal of Surgery 2022;49(9):593-597,C1
Objective:To explore the expression of microRNA-4695-5p in the serum of colorectal cancer patients and its effect on the proliferation and invasion of colorectal cancer CACO-2 cells.Methods:A total of 43 serum samples of colorectal cancer patients who were admitted to the Department of Gastrointestinal Surgery, Luoyang Central Hospital Affiliated to Zhengzhou University from March 2018 to November 2021 were selected, and serum samples of 43 healthy people who underwent outpatient physical examination were used as controls. Real-time quantitative polymerase chain reaction (qRT-PCR) was used to detect the relative expression levels in the serum of colorectal cancer patients and those of healthy individuals. The miR-4695-5p overexpression plasmid or the negative control plasmid were transfected into CACO-2 cells, namely the miR-4695-5p group and the control group, and the transfection efficiency was verified by qRT-PCR. CCK8 method and Transwell experiment were used to detect the effect of overexpression of miR-4695-5p on the proliferation and invasion of CACO-2 cells. The dual luciferase reporter gene experiment was used to verify the targeted binding relationship between miR-4695-5p and Ras-related C3 botulinum toxin substrate 1 (RAC1). qRT-PCR and Western blot were used to detect the effect of overexpression of miR-4695-5p on the expression of RAC1 gene and Wnt/β-Catenin signaling pathway protein.The software of SPSS28.0 was used to conduct data analysis. The measurement data of normal distribution were espressed by Mean±SD. The t-test was used to compare the means between two groups, and the one-way analysis of variance was used to compare the means of multiple groups. Results:The expression level of miR-4695-5p in the serum of patients with colorectal cancer was significantly lower than that of healthy individuals ( P<0.01). The relative expression levels of miR-4695-5p in the control group and miR-4695-5p group were 1.09 ± 0.65 and 8.83±2.03, respectively. The expression level of miR-4695-5p in CACO-2 cells in the miR-4695-5p group was 8.10 times that of the control group, and CACO-2 cells overexpressing miR-4695-5p were successfully constructed ( P<0.01). Compared with the control group, the proliferation ability of CACO-2 cells in the miR-4695-5p group was significantly reduced ( P<0.05), and the invasion ability of CACO-2 cells was significantly reduced ( P<0.01). Bioinformatics tools and dual luciferase reporter gene experiments confirmed that miR-4695-5p can target and bind RAC1 ( P<0.01). Compared with the control group, the expression of RAC1 gene in the miR-4695-5p group was significantly decreased ( P<0.01), and the expression of Wnt/β-Catenin signaling pathway proteins Wnt3a, β-catenin, and c-MYC decreased significantly. Conclusions:miR-4695-5p is lowly expressed in the serum of colorectal cancer patients. miR-4695-5p inhibits the proliferation and invasion of colorectal cancer CACO-2 cells by targeting the inhibition of RAC1 gene expression and down-regulating the activity of the Wnt/β-Catenin signaling pathway.
7.Relationship between human papillomavirus genotypes in and clinical characteristics of adult plantar warts
Qiang DONG ; Fan YANG ; Yingyun REN ; Tianbao XIA ; Mengmeng YIN ; Zekun WANG ; Xia MI ; Junlian LIU ; Xiaojia CAO
Chinese Journal of Dermatology 2017;50(10):748-750
Objective To investigate human papillomavirus (HPV) genotypes in adult patients with plantar warts,and to explore their relationship with clinical features of adult plantar warts.Methods PCR,gene sequencing and TA-cloning technique were performed to detect HPV types in 221 patients with plantar warts.Meanwhile,clinical data were recorded,including patients' age,disease duration,symptoms and number of warts.Results Of 221 specimens,HPV DNA was detected in 215,with the HPV-positive rate being 97%.Single HPV infections were detected in 206 specimens (96%,206/215),among which,HPV types included HPV-27 (44.7%,92/206),-2 (12.1%,25/206),-57 (7.3%,15/206),-7 (Alpha genus;0.5%,1/206),-65 (Gamma genus;0.5%,1/206),-1 (33.5%,69/206) and-63 (Mu genus;1.5%,3/206).There were no significant differences in age,disease duration,number of warts,incidence of pain and gender among patients with HPV-27,-2 or-57 infections.Compared with patients with HPV-27 infection,patients with HPV-1 infection were more related to age ≤ 30 years,disease duration ≤ 1 year,number of warts ≤ 2 and high incidence of pain.Conclusion HPV-27,-2,-57 and-1 are the main types in adult patients with plantar warts,and HPV types are correlated with clinical features of adult plantar warts.
8.Alterations in antioxidant function and cell apoptosis in duck spleen exposed to molybdenum and/or cadmium.
Mengmeng ZHANG ; Junrong LUO ; Caiying ZHANG ; Huabin CAO ; Bing XIA ; Guoliang HU
Journal of Veterinary Science 2017;18(2):193-200
To investigate the effects of molybdenum (Mo) and/or cadmium (Cd) on antioxidant function and the apoptosis-related genes in duck spleens. Sixty healthy 11-day-old ducks were randomly divided into six groups of 10 ducks (control, low Mo group, high Mo, Cd, low Mo + Cd, and high Mo + Cd groups). All were fed a basal diet containing low or high dietary doses of Mo and/or Cd. Relative spleen weight, antioxidant indices, apoptosis-related gene mRNA expression levels, and ultrastructural changes were evaluated after 120 days. The results showed that the relative spleen weight decreased significantly in the high Mo + Cd treatment group which compared with control group. Malondialdehyde levels increased and xanthine oxidase and catalase activities decreased in the Mo and/or Cd groups compared with levels in the control group. Bak-1 and Caspase-3 expressions were upregulated in the high Mo + Cd group, while Bcl-2 was downregulated. In addition, mitochondrial crest fracture, swelling, vacuolation, deformed nuclei, and karyopyknosis in both Mo + Cd treated groups were more severe than in the other groups. The results suggest that Mo and/or Cd can induce oxidative stress and apoptosis of spleen via effects on the mitochondrial intrinsic pathway. Moreover, the results indicate the two elements have a possible synergistic relationship.
Apoptosis*
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Cadmium*
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Caspase 3
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Catalase
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Diet
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Ducks*
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Malondialdehyde
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Molybdenum*
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Oxidative Stress
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RNA, Messenger
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Spleen*
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Xanthine Oxidase
9.Analysis of molecular epidemic characteristics of H3N2 influenza viruses in Guangzhou City during the COVID-19 pandemic
Lan CAO ; Tengfei ZHOU ; Yiyun CHEN ; Mengmeng MA ; Dan XIA ; Yanhui LIU ; Kuibiao LI ; Biao DI ; Pengzhe QIN ; Zhoubin ZHANG
Chinese Journal of Preventive Medicine 2024;58(3):351-357
To monitor and analyze the molecular variation of the H3N2 influenza virus in Guangzhou during the COVID-19 pandemic, respiratory samples of influenza-like cases from influenza monitoring sentinel hospitals were collected from influenza monitoring sentinel hospitals for virus isolation and whole genome sequencing. The results showed that during COVID-19, there was only one peak of H3N2 influenza in the second quarter of 2022 in Guangzhou (the positive rate was 52.23%), and the epidemic intensity and duration were both higher than those in 2019. The HA gene and NA gene of the epidemic strain in Guangzhou in 2022 belonged to the 3C.2a1b. 2a. 1a. 1 branch, which had a good antigenic site matching with the vaccine strain (A/Cambodia/e0826360/2020) from 2021 to 2022 and had no antigen drift. In 2022 strains, the variation of antigen determinant mainly occurred in the I48T of C region, while no variation occurred in the A, B, D, and E regions. The binding site of the HA protein receptor was consistent with the vaccine strain (A/Cambodia/e0826360/2020). Most of the strains in 2022 carried 13 glycosylation sites on the HA protein, but an outbreak of strains caused a loss of glycosylation sites at 24-NST. In conclusion, the strains that caused the epidemic of H3N2 influenza in Guangzhou in 2022 were not evolved or transmitted from the local strains in 2019 during the COVID-19 pandemic.
10.Research advances in TET enzyme and its intermediate product 5hmC.
Jingni WU ; Xiaoling FANG ; Xiaomeng XIA ; Mengmeng ZHANG
Journal of Central South University(Medical Sciences) 2019;44(4):449-454
DNA methylation is a significant epigenetic modification mode, which plays an important role in embryo reprogramming, stem cell differentiation and tumor occurrence. The ten-eleven translocation (TET) enzyme is a crucial demethylation enzyme, which can catalyze 5-methylcytosine(5mC) to 5-hydroxymethylcytosine(5hmC), 5-formylcytosine (5fC), and 5-carboxylcytosine(5caC). These bases represent the epigenetic modifications of DNA and regulate the process of DNA methylation. Understanding the role of TET enzyme in regulating the DNA methylation modification and gene expression can help us to gain the knowledge for the normal growth development and epigenetic regulation in human diseases.
5-Methylcytosine
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metabolism
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Cell Differentiation
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DNA
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DNA Methylation
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DNA-Binding Proteins
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Epigenesis, Genetic
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Humans