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1.
Acta Endocrinol (Buchar) ; 16(1): 9-14, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32685032

RESUMO

Objective: To observe the impact of quercetin and isoquercitrin on gluconeogenesis in hepatocytes. Methods: Mouse primary hepatocytes were cultured with lactic acid and pyruvic acid. After treatment with quercetin and isoquercitrin for 24 hours, the glucose concentration in the culture supernatant was determined. RT-PCR was used to detect the mRNAs of PEPCK, G6Pase, LKB1, and AMPKα. Protein levels of LKB1, AMPKα, and Thr172 phosphorylation were evaluated by Western blot. Results: The glucose concentration in the gluconeogenesis group (GN) was significantly higher than in the control group (C), but the glucose concentrations in the high level quercetin(group 80Q) and high level isoquercitrin (group 80I) were significantly lower than in the group GN, P<0.01. In the group 80Q, and group 80I, the mRNA levels of PEPCK and LKB1were significantly lower than in the group GN (P<0.01), and the G6Pase mRNA were significantly lower than in the group GN (P<0.05). The protein levels of LKB1 and the phosphorylation of AMPKα Thr172 in the group 80Q, group 40I, and group 80I were higher than in the group GN. The effects of quercetin and isoquercitrin on LKB1 and AMPKα were similar to those of metformin. Conclusions: Quercetin and isoquercitrin inhibit gluconeogenesis in hepatocytes, which may be related to the LKB1 upregulation and phosphorylation of AMPKα.

2.
Zhonghua Liu Xing Bing Xue Za Zhi ; 41(4): 542-546, 2020 Apr 10.
Artigo em Chinês | MEDLINE | ID: mdl-32344479

RESUMO

Objective: To analyze data gathered from the laboratory records related to imported Dengue cases in Henan province in 2018. Methods: Suspected Dengue cases were found out through the Dengue fever surveillance network from the National infectious Disease reporting management information system. Serum samples of suspected Dengue cases were collected while case study and tested for Dengue NS1 antigen, IgM, IgG antibodies and Dengue RNA in Henan province in 2018. According to the standardized Dengue diagnosis criteria, confirmed cases were identified under the results of testing. Dengue RNA was checked by Real-time PCR genotyping and amplification of E gene in the samples being tested, before the PCR products were sequenced and analyses of homological and phylogenetic were performed. Results: In 2018, a total of 29 cases of Dengue fever was reported in Henan province, with all of which were imported cases, mainly from Southeast Asian countries and Africa. Majority of the cases were young and middle-aged farmers under 45 years old, and the number of males was significantly higher than that of females. The imported cases were dispersed in time and space. Among the 29 Dengue reported cases, 22 cases were with NS1 antigen and/or IgM positive through testing, while 6 cases were positive by detection of the Dengue virus RNA. These 6 samples with Dengue RNA were genotyped successfully, including 3 cases of Dengue virus type 1 and 3 cases of type 2. One of the Maldives import Dengue virus type 2 samples was sequenced. Result showed that the sequence belonged to the Asian Ⅰ genotype, which was most consistently similar to the Cambodia's Dengue virus type 2 JF730046, identified in 2008. Conclusions: The incidence of imported Dengue fever cases increased significantly in Henan province in 2018, compared to that in 2017, but fortunately did not cause any local epidemics.


Assuntos
Vírus da Dengue/genética , Vírus da Dengue/patogenicidade , Dengue/epidemiologia , Dengue/virologia , Vigilância de Evento Sentinela , Adulto , Distribuição por Idade , China/epidemiologia , Vírus da Dengue/isolamento & purificação , Feminino , Genótipo , Humanos , Masculino , Pessoa de Meia-Idade , Filogenia , Reação em Cadeia da Polimerase
3.
Zhonghua Liu Xing Bing Xue Za Zhi ; 41(4): 494-497, 2020 Apr 10.
Artigo em Chinês | MEDLINE | ID: mdl-32133831

RESUMO

Objective: To understand the possible transmission route of a family cluster of COVID-19 in Zhengzhou and the potential infectivity of COVID-19 in incubation period, and provide scientific evidence for the timely control of infectious source and curb the spread of the epidemic. Methods: Epidemiological investigation was conducted for a family cluster of COVID-19 (8 cases) with descriptive epidemiological method, and respiratory tract samples of the cases were collected for the nucleic acid detection of virus by RT-PCR. Results: Two primary cases, which occurred on 31 January and 1 February, 2020, respectively, had a common exposure history in Wuhan. The other six family members had onsets on 30 January, 31 January, 1 February (three cases) and 3 February, 2020. Conclusions: In this family cluster of COVID-19, six family members were infected through common family exposure to the 2 primary cases. Five secondary cases had onsets earlier than or on the same day as the primary cases, indicating that COVID-19 is contagious in incubation period, and the home isolation in the early phase of the epidemic might lead to the risk of family cluster of COVID-19.


Assuntos
Infecções por Coronavirus/epidemiologia , Saúde da Família , Pneumonia Viral/epidemiologia , Betacoronavirus , China/epidemiologia , Infecções por Coronavirus/transmissão , Humanos , Período de Incubação de Doenças Infecciosas , Pandemias , Pneumonia Viral/transmissão
4.
Eur Rev Med Pharmacol Sci ; 24(1): 362-368, 2020 01.
Artigo em Inglês | MEDLINE | ID: mdl-31957850

RESUMO

OBJECTIVE: The aim of this study was to clarify the role of long non-coding RNA (lncRNA) HOXA-AS2 in influencing the proliferative, migratory and apoptotic abilities of human aortic vascular smooth muscle cells (HA-VSMCs) by absorbing microRNA-877-3p (miRNA-877-3p). MATERIALS AND METHODS: HOXA-AS2 level in HA-VSMCs treated with different doses of oxidized low-density lipoprotein (ox-LDL) and for different time points was determined by quantitative Real Time-Polymerase Chain Reaction (qRT-PCR). After transfection of si-HOXA-AS2 in HA-VSMCs undergoing ox-LDL treatment, the viability, apoptotic rate and migration of cells were detected, respectively. Meanwhile, the subcellular distribution of HOXA-AS2 was analyzed. The Dual-Luciferase reporter gene assay was applied to verify the binding relationship between HOXA-AS2 and miRNA-877-3p. MiRNA-877-3p level in HA-VSMCs treated with different doses of ox-LDL was determined as well. Furthermore, the regulatory effects of HOXA-AS2/miRNA-877-3p axis on cellular behaviors of HA-VSMCs were determined. RESULTS: HOXA-AS2 expression was upregulated by ox-LDL treatment in a time- and dose-dependent manner. After being treated with 100 mg/L ox-LDL for 48 h, the proliferative and migratory abilities of HA-VSMCs were significantly enhanced, while apoptosis was inhibited. Conversely, these changes were reversed by transfection of si-HOXA-AS2. HOXA-AS2 was mainly distributed in the nuclear fraction. Dual-Luciferase reporter gene assay confirmed the direct binding relationship between HOXA-AS2 and miRNA-877-3p. Moreover, miRNA-877-3p was markedly downregulated after transfection of si-HOXA-AS2. MiRNA-877-3p expression decreased gradually with an increased dose of ox-LDL. In addition, knockdown of miRNA-877-3p could reverse the regulatory effects of HOXA-AS2 on proliferative, migratory and apoptotic abilities of HA-VSMCs. CONCLUSIONS: HOXA-AS2 is upregulated after HA-VSMCs injury, which accelerates the proliferative and migratory abilities, and inhibits the apoptosis of vascular smooth muscle cells by absorbing miRNA-877-3p.

5.
Eur Rev Med Pharmacol Sci ; 23(20): 9025-9032, 2019 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-31696492

RESUMO

OBJECTIVE: To uncover the involvement of long non-coding RNA (lncRNA) MALAT1 in the proliferation and apoptosis of vascular smooth muscle cells (VSMCs), and the underlying mechanism. MATERIALS AND METHODS: Relative levels of MALAT1, microRNA-124-3p (miRNA-124-3p) and peroxisome proliferator-activated receptor alpha (PPARα) in VSMCs treated with different doses of oxidized low-density lipoprotein (ox-LDL) for different time points were determined by quantitative Real Time-Polymerase Chain Reaction (qRT-PCR). Proliferative and apoptotic changes of VSMCs overexpressing MALAT1 were assessed. Subcellular distribution of MALAT1 was analyzed. The potential binding among MALAT1, miRNA-124-3p and PPARα was determined by dual-luciferase reporter gene assay, and their interaction was determined as well. Finally, the influences of MALAT1/miRNA-124-3p/PPARα regulatory loop on the proliferative and apoptotic abilities of VSMCs were examined. RESULTS: MALAT1 and PPARα were dose-dependently downregulated in ox-LDL-treated VSMCs, whereas miRNA-124-3p was gradually upregulated. Overexpression of MALAT1 attenuated viability and induced apoptosis in ox-LDL-treated VSMCs. Moreover, MALAT1 was mainly distributed in the nucleus. Dual-luciferase reporter gene assay verified that MALAT1 could sponge miRNA-124-3p, and moreover, PPARα was the direct target of miRNA-124-3p. MALAT1 negatively regulated miRNA-124-3p level and miRNA-124-3p negatively regulated PPARα level as well. Finally, MALAT1/miRNA-124-3p/PPARα regulatory loop was identified to regulate the viability and apoptosis of ox-LDL-treated VSMCs. CONCLUSIONS: LncRNA MALAT1 mediates proliferation and apoptosis of VSMCs by sponging miRNA-124-3p to positively regulate PPARα level.


Assuntos
MicroRNAs/genética , Músculo Liso Vascular/citologia , PPAR alfa/genética , PPAR alfa/metabolismo , RNA Longo não Codificante/genética , Regiões 3' não Traduzidas , Apoptose , Proliferação de Células/efeitos dos fármacos , Células Cultivadas , Regulação para Baixo , Humanos , Lipoproteínas LDL/farmacologia , Músculo Liso Vascular/efeitos dos fármacos , Músculo Liso Vascular/metabolismo , Miócitos de Músculo Liso/citologia , Miócitos de Músculo Liso/efeitos dos fármacos , Miócitos de Músculo Liso/metabolismo
6.
Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi ; 31(5): 491-497, 2019 Oct 12.
Artigo em Chinês | MEDLINE | ID: mdl-31713377

RESUMO

OBJECTIVE: To understand the epidemic status and influencing factors of intestinal parasitic diseases among rural children in Henan Province. METHODS: According to the Scheme for The National Survey on Current Status of Major Human Parasitic Diseases in China, the survey counties were selected based on the ecological zones and economic levels in Henan Province between 2014 and 2015. Then, the included counties were stratified according to the topography and economic levels. A township was randomly sampled from each stratum, and a village was randomly sampled from each township as the study site. Finally, a total of 104 study sites from 35 counties were enrolled for the survey of intestinal parasitic diseases in children. At least 250 fresh stool samples were collected from each study site for detection of intestinal helminth eggs with the Kato-Katz technique, for the identification of Necator americanus and Ancylostoma duodenale with the fecal culture method, and for the detection of intestinal protozoa trophozoite and cyst with the physiological saline smear and iodine staining techniques. In addition, the Enterobius vermicularis and tapeworm eggs were detected in children aged 3 to 6 years using the adhesive cellophane-tape perianal swab method. RESULTS: The overall prevalence of intestinal parasitic infections was 3.21% (214/6 671) among rural children in Henan Province, and the prevalence of intestinal helminthes (2.62%, 175/6 671) was higher than that of intestinal protozoa (0.60%, 40/6 671). A total of 12 species of intestinal parasites were found, including 4 nematodes species, one trematode species, and 7 protozoa species, and the highest infection was seen in E. vermicularis (2.47%, 161/6 671). Among the four ecological zones in Henan Province, the greatest prevalence of intestinal parasitic infections was detected among children in the Qinba Mountain Ecological Zone (5.85%, 90/1 538). There was no gender-specific difference in the prevalence of intestinal parasitic infections in children (P > 0.05); however, there were age- (χ2 = 32.762, P < 0.05) and education level-specific differences in the prevalence of intestinal parasitic infections in children (χ2 = 67.507, P < 0.05), with the greatest prevalence of E. vermicularis infection seen in all species of intestinal parasites in children at all age groups. Multivariate non-conditional logistic regression analysis showed that high education level, high coverage of harmless toilets, drinking tap water and deworming were protective factors for intestinal parasitic infections in children in Henan Province. The overall prevalence of intestinal parasitic infections appeared a tendency towards a gradual decline among children in Henan Province as compared to the previous two surveys. CONCLUSIONS: The overall prevalence of intestinal parasitic infections shows a tendency towards a remarkable decline among children in Henan Province. E. vermicularis infection should be given a priority for future parasitic disease control activities among rural children in Henan Province.


Assuntos
Enteropatias Parasitárias , Animais , Criança , Pré-Escolar , China/epidemiologia , Fezes/parasitologia , Feminino , Humanos , Enteropatias Parasitárias/epidemiologia , Masculino , Prevalência , Infecções por Protozoários/epidemiologia , População Rural/estatística & dados numéricos
7.
Eur Rev Med Pharmacol Sci ; 23(16): 6878-6887, 2019 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-31486487

RESUMO

OBJECTIVE: Renal carcinoma is the second most common cancer in the urinary system with an increasing trend. The major treatment for renal carcinoma is surgery, which results in unfavorable prognosis at times. As a tissue-specific marker for tumor, microRNA (miR) exerts its functions via facilitating oncogenic gene expression or suppressing tumor suppressor gene. MiR-184 is known to be abnormally expressed in various tumors. There are few studies about the lack of miR-184 expression in renal carcinoma. PATIENTS AND METHODS: Real time-Polymerase Chain Reaction (PCR) was used to measure the expression of miR-184 in 38 renal carcinoma and adjacent tissues. The in vitro cultured renal carcinoma cell line ACHN was transfected with miR-184 mimic or inhibitor. The expression of miR-184 was measured by real time-PCR, and the cell proliferation was measured by MTT assay. The cell colony formation was examined, and the cell invasion potency was assessed by transwell assay. The apoptotic activity was measured by flow cytometry, and the Western blot detected protein expression change of ß-catenin/TCF3 pathway. RESULTS: Compared to tumor-adjacent tissues, miR-184 and ß-catenin/TCF3 showed an elevated expression in renal carcinoma tissues which were further increased with elevated RC stages (p<0.05). The transfection of miR-184 mimic into ACHN cells increased its expression, enhanced ACHN cell proliferation, colony formation, inhibited apoptosis, promoted tumor cell invasion, and increased the expression of ß-catenin and TCF4 proteins (p<0.05 compared to NC control group). CONCLUSIONS: MiR-184 is up-regulated in renal carcinoma tissues. The downregulation of miR-184 in renal carcinoma cells could facilitate cell apoptosis and inhibited tumor proliferation or invasion possibly via modulating ß-catenin/TCF4 pathway.


Assuntos
Apoptose/genética , Carcinoma de Células Renais/genética , Proliferação de Células/genética , Neoplasias Renais/genética , MicroRNAs/genética , Actinas/genética , Adulto , Idoso , Carcinoma de Células Renais/patologia , Linhagem Celular Tumoral , Regulação Neoplásica da Expressão Gênica , Humanos , Neoplasias Renais/patologia , Pessoa de Meia-Idade , Invasividade Neoplásica , Fator de Transcrição 4/genética , Regulação para Cima , beta Catenina/genética
8.
Zhonghua Yi Xue Za Zhi ; 99(22): 1712-1716, 2019 Jun 11.
Artigo em Chinês | MEDLINE | ID: mdl-31216817

RESUMO

Objective: To evaluate the correlation between single nucleotide polymorphisms (SNPs) of rs4778137 located in OCA2 gene and clinical response of breast cancer patients receiving neoadjuvant chemotherapy. Methods: A total of 140 breast cancer patients receiving neoadjuvant chemotherapy were enrolled to detect DNA in blood sample by DNA extraction kit and the rs4778137 polymorphism by sequenom. The relationship between SNPs of rs4778137 and pathologic complete response (pCR) were analyzed. Results: The frequency of CC, GC and GG genetype of rs4778137 was 48.6%, 31.4% and 20.0%,respectively. Thirty cases (21.4%) achieved pCR with CC allele in 9 cases(13.2%),GC allele in 10 cases (22.7%) and GG allele in 11 cases (39.3%),respectively,with a statistically significant difference(P<0.05). When conducting stratified analysis in accordance with the estrogen receptor (ER) status,only in ER negative group pCR was significantly associated with SNPs of rs4778137 (P<0.05). SNPs of Rs4778137, targeted therapy,subtypes,tumor stage were independent predictors of pCR in multivariate logistic regression analysis (P<0.05),and SNPs of rs4778137 was an independent predictors of pCR in ER negative group (P<0.05), but not in ER positive group group (P>0.05). Conclusion: SNPs of rs4778137 was associated with pCR only in ER negative patients receiving neoadjuvant therapy, and breast cancer patients with the GG allele were more likely to achieve pCR.


Assuntos
Neoplasias da Mama , Proteínas de Membrana Transportadoras/genética , Alelos , Protocolos de Quimioterapia Combinada Antineoplásica , Neoplasias da Mama/genética , Neoplasias da Mama/terapia , Humanos , Terapia Neoadjuvante , Polimorfismo de Nucleotídeo Único , Receptor ErbB-2 , Resultado do Tratamento
9.
Zhonghua Xin Xue Guan Bing Za Zhi ; 47(4): 305-310, 2019 Apr 24.
Artigo em Chinês | MEDLINE | ID: mdl-31060190

RESUMO

Objective: Previous cross-sectional studies suggested that elevated levels of total cholesterol content of erythrocyte membrane (CEM) could significantly increase the risk of acute coronary syndrome (ACS). The purpose of the present study was to assess the predictive value of baseline CEM levels for the risk of clinical endpoint events in patients with ACS through prospective follow-up studies. Methods: This study is a prospective follow-up study, which consisted of 859 patients with first ACS (698 patients with unstable angina pectoris and 161 patients with acute myocardial infarction), diagnosed and hospitalized in the First and Second Affiliated Hospital of Anhui Medical University. The routine blood lipid levels and CEM were measured. Patients were divided into two groups according to the median of baseline CEM: CEM≤131.56 µg/mg group (n=430) and CEM>131.56 µg/mg group (n=429). Patients were followed up at 6 months interval. The clinical endpoints were nonfatal myocardial infarction, nonfatal stroke, all-cause mortality, all-cause mortality, heart failure requiring hospitalization, and coronary artery revascularization. Kaplan-Meier curve analysis and Cox proportional hazard model were used to analyze the impact of elevated CEM on the occurrence of clinical end-point events. HR values and 95%CI of each variable were obtained. Cox regression analysis of all-cause mortality was performed according to whether patients had risk factors for coronary heart disease (hypertension, diabetes, smoking and elevated LDL-C) and whether they were treated with PCI. Results: The follow-up time was 1 640 (1 380, 2 189) days. Cox analysis after adjustment showed that an elevated baseline of CEM (>131.56 µg/mg) was associated with an increased risk of all-cause mortality (HR=1.690, 95%CI 1.041-2.742, P=0.034), but had no significant predictive effect on the other clinical endpoints. Subgroup analysis showed that elevated baseline CEM levels in ACS patients with LDL-C>1.8 mmol/L (HR=1.687, 95%CI 1.026-2.774, P=0.039), receiving in-hospital PCI (HR=2.365, 95%CI 1.054-5.307, P=0.037), or male (HR=1.794, 95%CI 1.010-3.186, P=0.046) were associated with an increased risk of all-cause mortality. Conclusion: The results showed that elevated CEM levels can increase the risk of all-cause mortality in ACS patients.


Assuntos
Síndrome Coronariana Aguda , Colesterol , Intervenção Coronária Percutânea , Síndrome Coronariana Aguda/sangue , Síndrome Coronariana Aguda/diagnóstico , Colesterol/sangue , Estudos Transversais , Membrana Eritrocítica , Feminino , Seguimentos , Humanos , Masculino , Prognóstico , Modelos de Riscos Proporcionais , Estudos Prospectivos , Fatores de Risco
10.
Zhonghua Yu Fang Yi Xue Za Zhi ; 53(4): 415-418, 2019 Apr 06.
Artigo em Chinês | MEDLINE | ID: mdl-30982279

RESUMO

To study the epidemiology and etiology characteristics of first imported Chikungunya fever case in Henan province, China, 2017. The patient was confirmed by Chikungunya virus (CHIKV) infected as CHIKV ribonucleotide was continuously detected in his serum specimens. BHK-21 cell line was used for virus isolation, the strain was named CHIKV/Henan001/2017. CHIKV/Henan001/2017 belonged to genotype ECSA. The highest ribonucleotide homology sequence of highly conserved region E1 with CHIKV/Henan001/2017 was hk02 strain (99.8%), who was an imported strain to Hong Kong, China, 2016. Epidemiological information and laboratory testing confirmed it was an imported Chikungunya fever case in Henan province, 2017. No secondary case has been reported.


Assuntos
Febre de Chikungunya/epidemiologia , Vírus Chikungunya/genética , Vírus Chikungunya/isolamento & purificação , RNA Viral/genética , Febre de Chikungunya/diagnóstico , Vírus Chikungunya/classificação , China/epidemiologia , Genótipo , Humanos , Epidemiologia Molecular , Dados de Sequência Molecular , Filogenia , Viagem , Proteínas Virais/genética
11.
Zhonghua Yu Fang Yi Xue Za Zhi ; 52(11): 1164-1167, 2018 Nov 06.
Artigo em Chinês | MEDLINE | ID: mdl-30419702

RESUMO

Objective: To confirm the laboratory diagnosis of dengue bordline cases reported in Henan Province and trace its origin from molecular level in 2017. Methods: The study samples were blood samples (3-5 ml), which came from 8 suspected cases of dengue fever reported in the 2017 direct reporting system of Henan provincial infectious disease monitoring network. Meanwhile, case investigation was conducted according to National dengue fever surveillance programme. Serum were separated from blood samples and tested for Dengue NS1 antigen, IgM & IgG antibodies, and dengue RNA. According to dengue diagnosis criteria, confirmed cases were identified by testing results. Samples carried dengue RNA performed for real-time PCR genotyping and amplification of E gene. Then, the amplicons were sequenced and homological and phylogenetic analyses were constructed. Results: 8 serum samples of suspected dengue cases were collected in Henan Province, 2017. Six of them were diagnosed as dengue confirmed cases. All the dengue confirmed cases belonged to outside imported cases, 5 of them were positive by dengue RNA testing. Genotyping results showed there were 1 DENV1 case, 2 DENV2 cases and 2 DENV3 cases. A DENV2 case and a DENV3 case of this study were traced its origin successfully. The sequence of Pakistan imported DENV2 case belongs to cosmopolitan genotype, which was the most consistent with Pakistan's DENV2 KJ010186 in 2013 (identity 99.0%). The sequence of Malaysia imported DENV3 case belongs to genotype I, which was the most consistent with Singapore's DENV3 KX224276 in 2014(identity 99.0%). Conclusion: The laboratory diagnosis and molecular traceability of dengue cases in Henan Province in 2017 confirmed that all cases were imported and did not cause local epidemics.


Assuntos
Vírus da Dengue/genética , Dengue/diagnóstico , Técnicas de Laboratório Clínico , Vírus da Dengue/isolamento & purificação , Genótipo , Humanos , Filogenia
13.
Zhonghua Yu Fang Yi Xue Za Zhi ; 52(9): 936-940, 2018 Sep 06.
Artigo em Chinês | MEDLINE | ID: mdl-30196642

RESUMO

Objective: To analyze the etiological characteristics of infectious diarrhea among people under 5 years old in Dongcheng District, Beijing. Methods: The age, time of infection, clinical symptoms and laboratory test results of the cases who didn't used antibiotics within 3 days in the second maternal and child health care hospital were collected from 2012 to 2015, through the information management system of infectious disease monitoring technology platform. To compare the detection rate of virus and bacteria in children with different sex, time and age,and the difference of clinical characteristics between virus detection group and bacteria detection group by chi square test. Results: 1 977 cases of infectious diarrhea were collected, the median of the month age (P(25), P(75)) was 14.19 (8.31, 23.15) months. The virus detection rate was 34.3% (679 cases); the bacterial detection rate was 14.6% (288 cases). The difference of virus detection rate in children with different months was statistically significant (χ(2)=72.38, P<0.001), the virus detection rate of 24-60 months (40.9% (188/460)) was the hightest, and the detection rate of 0-5 months (15.3% (48/314)) was the lowest. The difference of bacteria detection rate was also statistically significant (χ(2)=32.67, P<0.001), and the detection rate of 12-17 months (19.0% (81/426)) was the highest, the detection rate of 0-5 months (6.7% (21/314)) was the lowest. The proportion of vomit and water sample in the virus detection group was 22.2% (136 cases) and 73.3% (449 cases), respectively, which were higher than those in bacteria detection group (8.1% (18 cases) and 57.2% (127 cases)), the difference was statistically significant (χ(2) values were 125.92 and 19.60; P values were both<0.001); the proportion of mucus stool and fever was 0.8% (5 cases) and 14.0% (86 cases), respectively, which were lower than those in bacterial detection group (4.1% (9 cases) and 18.5% (41 cases)), and the difference was statistically significant (χ(2) values were 8.50 and 23.01; P values were 0.004 and <0.001). Conclusion: The virus detection rate of infantile infective diarrhea is higher than that of bacteria in Dongcheng district of Beijing, and the clinical characteristics are significantly different.


Assuntos
Disenteria/etiologia , Pequim , Pré-Escolar , Feminino , Humanos , Lactente , Masculino
14.
Zhonghua Liu Xing Bing Xue Za Zhi ; 39(3): 322-328, 2018 Mar 10.
Artigo em Chinês | MEDLINE | ID: mdl-29609247

RESUMO

Objective: To understand the prevalence of major human parasitic diseases and related factors in Henan province. Methods: This stratified sampling survey was carried out according to the requirement of national survey protocol of major human parasitic diseases, 2014-2015. The prevalence of soil-transmitted helminths infection, taeniasis and intestinal protozoiasis were surveyed in 104 sites selected from 35 counties (districts) and the prevalence of clonorchiasis was surveyed in 62 sites selected from 37 townships. In each survey spot, 250 persons were surveyed. A total of 26 866 persons and 15 893 persons were surveyed. Modified Kato-Katz thick smear was used to detect the eggs of intestinal helminthes. Tube fecal culture was used to identify the species of hookworm. The Enterobius eggs were detected in children aged 3 to 6 years by using adhesive tape. The cyst and trophozoite of intestinal protozoa were examined with physiological saline direct smear method and iodine stain method. Results: The overall infestation rate of intestinal parasites was2.02% in Henan, and the worm infection rate was higher than protozoa infection rate. Fourteen kinds of intestinal parasites were found, including nematode (5 species), trematode (2 species), and protozoan (7 species). The infection rate of Enterobius vermicularis was highest, and Qinba Mountain ecological area had the highest infestation rate of intestinal parasites in 4 ecological areas of Henan. There was no significant difference in intestinal parasite infection rate between males and females (χ(2)=3.630, P=0.057), and the differences in intestinal parasite infection rate among different age groups had significance (χ(2)=124.783, P=0.000 1). The infection rate reached the peak in age group ≤9 years and the major parasite was Enterobius vermicularis. Furthermore the overall human infection rate of parasite showed a downward trend with the increase of educational level of the people (χ(2)=70.969, P=0.000 1), the differences had significance (χ(2)=120.118, P=0.000 1). For different populations, the infection rate of intestinal parasites was highest among preschool children. The infection of intestinal helminth was mainly mild, only 2 severe cases were detected. The infection rate of Clonorchis sinensis in urban residents was only 0.006%. Logistic regression analysis showed that being preschool children (χ(2)=15.765, P=0.000 1) and drinking well water (χ(2)=45.589, P=0.000 1) were the risk factors for intestinal parasite infection, and annual income per capita of farmers was the protective factor against intestinal parasite infection. The infection rates of protozoa and intestinal parasites decreased sharply compared with the results of previous two surveys, and the rate of intestinal helminth infection also dropped sharply compared with the second survey. The numbers of protozoa, helminth and intestinal parasites detected in this survey were all less than the numbers found in the previous two surveys. Conclusions: Compared the results of three surveys in Henan, the infection rate of protozoa and intestinal parasites showed a downward trend. The prevention and treatment of Enterobius vermicularis infection in children should be the key point of parasitic disease control in the future.


Assuntos
Fezes/parasitologia , Enteropatias Parasitárias/etnologia , Infecções por Trematódeos/etnologia , Animais , Criança , Pré-Escolar , Clonorquíase/epidemiologia , Fazendeiros , Feminino , Helmintíase/epidemiologia , Helmintos , Humanos , Enteropatias Parasitárias/epidemiologia , Enteropatias Parasitárias/parasitologia , Masculino , Prevalência , Fatores de Proteção , Fatores de Risco , População Rural , Microbiologia do Solo , Inquéritos e Questionários , Teníase/epidemiologia , Infecções por Trematódeos/parasitologia , População Urbana , Poços de Água
15.
Zhonghua Yu Fang Yi Xue Za Zhi ; 51(10): 881-885, 2017 Oct 06.
Artigo em Chinês | MEDLINE | ID: mdl-29036988

RESUMO

Objective: To investigate the antimicrobial resistance and pulsed field gel electrophoresis (PFGE) patterns of S.paratyphi A strains in Zhengzhou city isolated from sentinel hospitals in 2013-2015. Methods: According to Salmonella molecular typing and K-B drug susceptibility testing method published by international PulseNet bacterial infectious disease monitoring network and USA Clinical and Laboratory Standards Institute (CLSI2015), we analyzed drug sensitivity and PFGE molecular characteristics of 67 S.paratyphi A strains(11 strains in 2013, 7 strains in 2014, 49 strains in 2015) isolated from blood and stool samples in two sentinel hospitals of fever with rash syndrome surveillance system established in Zhengzhou city in 2013-2015. Results: The results showed 67 strains of S.paratyphi A had different levels of resistance to 13 kinds of antibiotics, 65 strains were multi-drug resistant strains (97.0%), 5 isolates were resistant to 2-3 kinds of antibiotics (7.5%), 41 isolates were resistant to 5-8 kinds of antibiotics (61.2%),11 isolates were resistant to 9-10 kinds of antibiotics(16.4%),8 isolates were resistant to 11-12 kinds of antibiotics(11.9%). 67 strains of S.paratyphi A were divided into 10 molecular patterns(PTYA1-PTYA10) by digestion with XbaⅠ restriction endonuclease and pulsed field gel electrophoresis, each pattern contains 1-48 strains with similarity ranged from 94.31%-100%. PTYA3 contained 48 strains, which was predominant band type; PTYA1, 9 contained 6 strains; PTYA 2, 4, 5, 6, 7, 8, 10 contained 1 strains among them. Conclusion: The status of drug resistance of clinical isolates of S.paratyphi A in Zhengzhou city was rather serious, PFGE patterns showed diversity and dominant characteristics. The PFGE patterns of partial strains and its corresponding anti-drug spectrum have certain relevance and cluster relationship.


Assuntos
Farmacorresistência Bacteriana/genética , Salmonella paratyphi A/efeitos dos fármacos , Salmonella paratyphi A/genética , Antibacterianos/farmacologia , Eletroforese em Gel de Campo Pulsado , Humanos , Testes de Sensibilidade Microbiana , Tipagem Molecular , Salmonella paratyphi A/isolamento & purificação
16.
Zhonghua Liu Xing Bing Xue Za Zhi ; 38(10): 1386-1389, 2017 Oct 10.
Artigo em Chinês | MEDLINE | ID: mdl-29060985

RESUMO

Objective: To explore the characteristics regarding temporal, spatial and spatiotemporal distribution on severe fever with thrombocytopenia syndrome (SFTS) in Henan province. Methods: Surveillance data related to SFTS was collected in Henan province, from year 2014 to 2016. Descriptive method was used to analyze the distribution of SFTS. 1.7.0 software related to the Public health geographic information system (PHGIS), was applied to draw the spatial distribution map of SFTS. Chi-square test was used to compare the different incidence rates. Results: A total of 2 781 SFTS cases, including 34 deaths, were reported in Henan province from 2014 to 2016, with an average annual fatality rate as 1.22%. There were statistically significant differences for the incidence rates of SFTS between different years (P<0.01). Cases were mainly concentrated from April to October, which accounted for 96.66% of the total number, with the incidence peak seen in May. Incidence rates of SFTS in spring, summer, autumn were higher than that in winter. The cases were scattering around in 26 counties of 8 cities. Xinyang city reported 2 714 cases, accounting for 97.59% of the total number of cases in the province. The average annual incidence rate in Xinyang city was 17.22 per 100 000, much higher than that for the whole Henan province (0.98 per 100 000), with statistically significant difference (P<0.01). Six counties reported having death cases, that accounted for 23.08% of the total number of counties, reported to have death cases. Two kinds of incidence patterns of SFTS were noticed in Henan province, with aggregation in some local regions or sporadic in individual counties. The number of counties with reporting cases increased annually. The epidemic area was expanding and gradually spreading from south to north areas of the province. Conclusions: SFTS was characterized with both temporal and spatial clusters in Henan province. Effective prevention and control measures should be made in accordance with the spatiotemporal distribution and the trend on SFTS.


Assuntos
Febre/epidemiologia , Sistemas de Informação Geográfica , Saúde Pública , Trombocitopenia/epidemiologia , China/epidemiologia , Cidades , Epidemias , Febre/diagnóstico , Humanos , Incidência , Phlebovirus , Vigilância da População , Estações do Ano , Índice de Gravidade de Doença , Trombocitopenia/diagnóstico
17.
Zhonghua Yu Fang Yi Xue Za Zhi ; 51(2): 150-153, 2017 Feb 06.
Artigo em Chinês | MEDLINE | ID: mdl-28219154

RESUMO

Objective: To investigate human enterovirus (HEV) infection and clinical characteristics of viral encephalitis patients in Pingdingshan, Henan Province. Methods: Cerebrospinal fluid specimens and epidemiological information were collected from 274 viral encephalitis patients in the departments of pediatrics and neurology in hospitals in Pingdingshan, Henan Province, from April 2011 to August 2012. Patients with bacterial infections were excluded from the study. Demographic information was collected by questionnaires and clinical information was mainly obtained from hospital examinations. Viral RNA was extracted using magnetic bead extraction. Real-time RT-PCR was then performed for HEV, CV-A16, and EV-A71 testing. SPSS statistical software was statistical analyses. Significant differences were determined using the chi-squared test (P<0.05). Results: Among 274 cases of viral encephalitis, 180 cases (65.7%) were male and 94 cases were female (34.3%). The median age was 2.17 years. Approximately 61.3% (168) of patients were younger than 3 years of age. A total of 107 (39.1%), 2 (0.7%), and 42 (15.3%) cases were positive for HEV, CV-A16, and EV-A71, respectively. Eleven patients were younger than 6 months of age and one patient was co-infected with HEV and EV-A71. In the<3, 3-5, 6-15, and>15 years old age groups, HEV infections comprised 31.5% (53/168), 52.9% (18/34), 53.0% (35/66), and 16.7% (1/6) (χ(2)=13.10, P=0.003), respectively. The EV-A71 infection rates were 17.9% (30/168), 23.5% (8/34), 6.1% (4/66), and 0 (χ(2)=8.04, P=0.045), respectively. The other enterovirus (OEV) infection rates were 12.5% (21/168), 29.4% (10/34), 48.5% (32/66), and 16.7% (1/6) (χ(2)=35.19, P<0.001), respectively. The rate of vomiting in OEV and EV-A71 infected patients was 73% (44/60) and 26% (11/42), respectively, while the frequency of skin rash in OEV and EV-A71 infected patients was 32% (19/60) and 79% (33/42), respectively. Approximately 95% (99/104) of patients infected with HEV had a fever, and the breathing rhythm change rate was 19% (20/104), which was lower than that of patients without HEV infection (36.8% (60/163)) (χ(2)=9.35, P=0.002). Conclusion: In Pingdingshan, HEV was a major causative agent of viral encephalitis and the rate of OEV infection was high, especially in children aged 3-15 years old. Fever was a common clinical symptom of patients infected with HEV. Patients infected with OEV primarily exhibited vomiting symptoms and EV-A71 infected patients showed skin rash.


Assuntos
Encefalite Viral/líquido cefalorraquidiano , Infecções por Enterovirus/epidemiologia , Enterovirus/isolamento & purificação , Adolescente , Criança , Pré-Escolar , China/epidemiologia , Coinfecção/epidemiologia , Encefalite Viral/epidemiologia , Enterovirus/genética , Enterovirus Humano A , Infecções por Enterovirus/diagnóstico , Feminino , Humanos , Lactente , Masculino , RNA Viral/genética , Reação em Cadeia da Polimerase em Tempo Real
18.
Zhonghua Yu Fang Yi Xue Za Zhi ; 51(1): 82-86, 2017 Jan 06.
Artigo em Chinês | MEDLINE | ID: mdl-28056276

RESUMO

Objective: To investigate the infectious status, gene type transition and epidemiological features of rotavirus A isolated from infants and children (<59 months-of-age) in sentinel hospitals from 2008 to 2015 in Henan province, China. Methods: In total, 2 541 stool samples (each 3- 5 ml) were collected from infants and children aged less than five years in two sentinel hospitals and group A rotavirus was detected by a double antibody sandwich ELISA. Viral RNA was extracted from positive samples and G/P gene typing was performed using a two-step nested multiplex RT-PCR. Epidemiological information (including demographic information such as age, sex and clinical symptoms) was also collected from the patients and analyzed. Results: Group A rotavirus was detected in 30.9% (785/2 541) of diarrhea samples from children. The detection rate was higher in October (54.8%, 345/629) and lower in July (5%, 5/101) each year from 2008 to 2015. The group A rotavirus infection rate was higher in boys (30.6%, 451/1 476) than in girls (31.4%, 334/1 065) (χ2=0.18, P=0.664). Infection mainly occurred in 4-12 months old patients (61.3%, 481/785) (χ2=196.69, P<0.001), and the infection rate was lower in cities (26%, 258/992) compared with rural areas (34.0%, 527/1 549) (χ2=18.19, P<0.001). G typing of 785 strains of group A rotavirus revealed the following types: G1 (13.5%, 106 strains), G2 (11.1%, 87 strains), G3 (29.7%, 233 strains), and G9 (57.5%, 451 strains); P typing revealed the predominance of P[4] (11.3%, 89 strains) and P[8] (84.7%, 665 strains); gene type combinations comprised mainly G9P[8], G2P[4], G3P[8], G1P[8], respectively accounted for 52.9% (415), 9.7% (76), 17.3% (136), 11.3% (89). Gene type combinations G1 [8] and G3P[8] have been decreasing in prevalence since 2008 and G9P[8] has become the dominant gene type of group A rotavirus in Henan province. Among the group A rotavirus infection samples, the male:female infection ratio was 1.4∶1 (451/334), with no significant difference in the infection rate (χ2=0.18, P=0.664); the infection rate was higher in 4- 12 months old patients (61.3%, 481/785), with a significant difference detected between age groups (χ2=196.69, P<0.001). The rate of detection was lower in cities (26.0%, 258/992) than in rural areas (34.0%, 527/1 549) (χ2=18.19, P<0.001). Clinical analysis revealed a body temperature of below 37 degrees in 75.7% of positive cases (594 patients), 37.0- 37.5 degrees in 17.2% of cases (135 patients), 37.6-38.0 degrees in 2.0% of cases (16 patients), and above 38 degrees in 5.1% of cases (40 patients), with most cases showing no fever or a mild fever. The frequency of episodes of diarrhea among the patients was 0- 3 times (21.1%, 166 cases), 4- 6 times (65.6%, 515 cases), 7- 9 times (8.0%, 63 cases), or 10- 15 times (5.2%, 41 cases), mainly showing mild and moderate diarrhea. Vomiting also varied in frequency among the patients from no vomiting (86.9%, 682 cases), 1-2 times (11.8%, 92 cases), 3 times (6.0%, 47 cases), and more than 3 times (0.4%, 3 cases). The occurrence of dehydration varied from no dehydration (86.9%, 682 cases), mild dehydration of 1%- 5% (12.1%, 95 cases), to severe dehydration of ≥5% (1.0%, 8 cases). Conclusion: A higher infection rate of group A rotavirus was detected in children younger than five years of age with acute diarrhea in sentinel hospitals in Henan province, including part-mixed infection cases. A predominance of cases was detected in the autumn, and secondly the spring of each year. Gene type G9P[8] was most frequently isolated. The majority of patients displayed no fever, vomiting or dehydration. The cases with clinical symptoms of fever, diarrhea, vomiting and dehydration often showed mild disease.


Assuntos
Infecções por Rotavirus/diagnóstico , Infecções por Rotavirus/virologia , Rotavirus/classificação , Rotavirus/genética , Pré-Escolar , China/epidemiologia , Coinfecção , Diarreia/complicações , Diarreia/epidemiologia , Diarreia/patologia , Diarreia/virologia , Ensaio de Imunoadsorção Enzimática , Fezes/virologia , Feminino , Febre/etiologia , Gastroenterite/complicações , Genótipo , Hospitais , Humanos , Lactente , Masculino , Epidemiologia Molecular , Prevalência , RNA Viral/genética , Reação em Cadeia da Polimerase Via Transcriptase Reversa , Rotavirus/isolamento & purificação , Infecções por Rotavirus/epidemiologia , Estações do Ano , Vigilância de Evento Sentinela
19.
Zhonghua Liu Xing Bing Xue Za Zhi ; 37(10): 1392-1396, 2016 Oct 10.
Artigo em Chinês | MEDLINE | ID: mdl-27765132

RESUMO

Objective: To investigate the infection status of human rotavirus, calicivirus, astrovirus and enteric adenovirus in children aged <5 years in disease surveillance areas in Henan province from 2013 to 2015. Methods: A total of 880 stool samples were collected from four sentinel hospitals and group A rotavirus was detected by ELISA and group A rotavirus G/P genotyping was performed with nested multiplex RT-PCR, while rotavirus (group B, C), calicivirus and astrovirus were detected by two-step multiplex RT-PCR and adenovirus were detected by PCR. The epidemiological data of positive cases were statistically analyzed. Results: A total of 594 positive samples were detected, including 24 mixed infection samples, 370 rotavirus positive samples (42.0%); 162 calicivirus positive samples (18.4%); 69 astrovirus positive samples (7.8%) and 17 enteric adenovirus positive samples (1.9%). The overall positive rate of four viruses was significantly higher in urban area than in rural area, but the positive rate of rotavirus was higher in males than in females and in younger age group than in older age group. G9P [8] was the major genotype of group A rotavirus, there were two seasonal infection peaks in autumn and spring. Norovirus Ⅱ was the predominant type of calicivirus and the infection peak was in spring. Viral diarrhea cases were distributed in different age groups, mainly in age groups 0-12 months (rotavirus) and 3-5 years (calicivirus). The main clinical symptoms included fever, diarrhea and vomiting. The etiological characteristics differed with gender and area. Conclusions: The infection rate of diarrheal viruses was higher in young children <5 years old in disease surveillance areas. The epidemiological and clinical features varied with the type of pathogen.


Assuntos
Diarreia/virologia , Viroses/epidemiologia , Adenoviridae , Caliciviridae , Criança , Pré-Escolar , China , Coinfecção , Infecções por Enterovirus , Ensaio de Imunoadsorção Enzimática , Fezes , Feminino , Genótipo , Humanos , Lactente , Masculino , Mamastrovirus , Norovirus , Rotavirus , Infecções por Rotavirus
20.
Zhonghua Liu Xing Bing Xue Za Zhi ; 37(10): 1404-1408, 2016 Oct 10.
Artigo em Chinês | MEDLINE | ID: mdl-27765134

RESUMO

Objective: To understand the distribution of Salmonella in external environment in Henan province, and explore the distribution of different serotypes of the Salmonella and their homology. Methods: A total of 4 488 samples were collected form animal dung, meat products and kitchen utensils, and identified by biochemical tests and serotyped by serum agglutination reaction. The predominant serotypes were further typed by PFGE. Results: A total of 324 Salmonella strains were detected in these samples, the detection rate was 7.21%. The 324 Salmonella isolates belonged to 39 serotypes, S. enteritidis (24.07%, 78/324) and S. derby (20.37%, 66/324) were predominant. Forty six strains of S. enteritidis and 30 strains of S. derby were divided into 12 and 17 molecular patterns by digestion with Xba Ⅰ, while chicken and swine were the predominant animal hosts. Conclusions: Serotyping of external environment Salmonella were phenotypically diverse and the serotype of Salmonella from different sources were different. The same clone was prevalent in same area. It is necessary to strengthen supervision and surveillance to ensure food safety.


Assuntos
Salmonelose Animal , Salmonella/genética , Animais , Galinhas , Fezes , Contaminação de Alimentos , Humanos , Prevalência , Salmonella/isolamento & purificação , Sorotipagem , Suínos
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