OBJECTIVETo learn about the complete genomic sequence of the Seoul virus strain ZT10 isolated from M. fartis.

METHODSThe total RNA was extracted from the infected Vero E6 cells and amplified by RT-PCR. The purified PCR products were cloned into T-vector and sequenced.

RESULTSThe results demonstrated that the complete genome of ZT10 was comprised of L(6530), M(3651) and S(1753) segments which encoded 2151-1133 and 429 amino acids respectively.

CONCLUSIONAnalysis of sequence revealed that the ZT10 belonged to Seoul virus. The nucleotide sequence identity of the M gene with Seoul virus was 84.0%-96.3%. The identity with Hantan vrisu (Prospect Hill virus, Tula virus) isolated from M. fartis was 57.5%-60.9%. The sequence identity of the S gene with Seoul virus was 87.9%-96.0% at nucleotide level and 96.9%-97.9% at amino acid level.

Animals ; Antigens, Viral ; analysis ; Cell Line ; Cloning, Molecular ; DNA, Complementary ; genetics ; DNA, Viral ; genetics ; Fluorescent Antibody Technique, Direct ; Hantavirus ; classification ; genetics ; isolation & purification ; Phylogeny ; Polymerase Chain Reaction ; Sequence Alignment ; Sequence Analysis, DNA

Objective: To understand the prevalence of drug resistance in treatment-naive HIV infected men who have sex with (MSM) in Guangzhou. Methods: HIV-1 RNA were extracted from the serum specimens of the MSM newly confirmed to be HIV-1 positive, living in Guangzhou and receiving no anti-viral therapy from 2008 to 2015. HIV-1 pol gene segments, including full protease and part reverse transcriptase, were amplified by nested reverse transcription polymerase chain reaction (nested-PCR) and sequenced by Sanger. Subsequently, the sequence data were submitted to Stanford University HIV Drug Resistance Database for drug resistance analysis. Results: Among 2 283 HIV infected MSM, HIV-1 pol gene segments were obtained from the serum samples of 1 986 HIV infected MSM aged 16-84 (30.18±8.24) years. Among them, the unmarried accounted for 74.17% (1 473/1 986), those of Han ethnic group accounted for 90.64% (1 800/1 986), those with education level of college or above accounted for 49.65% (986/1 986), those with education level of senior high school or secondary school accounted for 27.14% (539/1 986), those with education level of junior high school or below accounted for 20.89% (415/1 986). The distribution of subtypes was predominated by CRF07_BC (38.22%, 759/1 986) and CRF01_AE (34.49%, 685/1 986). The overall prevalence of drug resistance was 3.32% (66/1 986). The prevalence of resistance to protease inhibitors (PIs), nucleoside reverse transcriptase inhibitors (NRTIs) and non-nucleoside reverse transcriptase inhibitors (NNRTIs) were 1.36%(27/1 986), 0.65% (13/1 986) and 1.61% (32/1 986), respectively. Subtype B had higher resistance to PIs, NRTIs and NNRTIs and subtype CRF55_01B had highest resistance to NNRTIs compared with other subtypes. In subtype B, the resistant rates to D4T, EFV and NVP were highest (all 4.17%, 5/120), followed by those to NFV, AZT and RPV (all 3.33%, 4/120). In subtype CRF55_01B, the resistant rates to EFV and NVP were highest (all 5.50%, 16/291), followed by those to ETR and RPV (all 5.15%, 15/291). Conclusions: The prevalence of drug resistance in treatment-naive HIV infected MSM in Guangzhou remained at low level and current antiretroviral drugs are generally effective. However, subtype B and CRF55_01B have higher drug resistance.
Adolescent ; Adult ; Child ; Drug Resistance, Viral ; Genotype ; HIV Infections/ethnology* ; Homosexuality, Male/statistics & numerical data* ; Humans ; Male ; Phylogeny ; Prevalence ; RNA, Viral/genetics* ; Sexual and Gender Minorities ; Young Adult

Objective: To understand the recent transmission of Mycobacterium tuberculosis (MTB), and to identify the influencing factors of recent transmission among pulmonary tuberculosis (TB) patients in Jing'an district, Shanghai. Methods: The genotypes and drug resistances of MTB isolated from TB patients registered in the TB designated hospitals in Jing'an district during 2010-2015 were analyzed through 12-loci Mycobacterial interspersed repetitive unit-variable number tandem repeat (MIRU-VNTR)(QUB11b, QUB18, Mtub21, Miru26, QUB26, Mtub04, Miru31, Miru40, VNTR2372, VNTR3820, 3232, 4120), and tested for drug susceptibility as well. With the results of field epidemiological investigation, univariate and multivariate analyses were performed to analyze the distribution of the clusters and influencing factors on recent transmission. Results: This study enrolled 80 TB patients, 23 (28.75%) had a resistance to at least one anti-TB drug, and the prevalence of multidrug-resistant tuberculosis (MDR-TB) was 16.25%. A total of 65 genotypes were identified with 58 (72.50%, 58/80) being unique and 7 clusters with 2-10 isolated in each cluster. The proportion of clustering was 27.50% (22/80). Results from the multivariate analysis revealed that multidrug- resistance (OR=35.799, 95%CI: 4.239-302.346) and having comorbidity with TB (OR=7.695, 95%CI: 1.421-41.658) were independently associated with the clustering, which suggesting a recent transmission. The field investigation to the clustered cases proved that the patients in two clusters had epidemiological links, one was between family members, and the other contained 10 MDR-TB patients with 9 knowing each other which have a definite connection and 1 having the possible connection with them. Conclusion: Recent transmission of tuberculosis happened among TB patients in Jing'an district, with high risks among the MDR-TB patients.
China ; Cluster Analysis ; Genotype ; Humans ; Mycobacterium tuberculosis/isolation & purification* ; Tuberculosis ; Tuberculosis, Multidrug-Resistant/transmission* ; Tuberculosis, Pulmonary/transmission*

Humans ; Erdheim-Chester Disease/diagnostic imaging* ; Histiocytosis, Langerhans-Cell/surgery* ; Tomography, X-Ray Computed

Significant evidence supports the role of the vestibular system in the regulation of blood pressure during postural movements. In the present study, the role of the vestibulo-spino-adrenal (VSA) axis in the modulation of blood pressure via the vestibulosympathetic reflex was clarified by immunohistochemical and enzyme immunoassay methods in conscious rats with sinoaortic denervation. Expression of c-Fos protein in the intermediolateral cell column of the middle thoracic spinal regions and blood epinephrine levels were investigated, following microinjection of glutamate receptor agonists or antagonists into the medial vestibular nucleus (MVN) and/or sodium nitroprusside (SNP)-induced hypotension. Both microinjection of glutamate receptor agonists (NMDA and AMPA) into the MVN or rostral ventrolateral medullary nucleus (RVLM) and SNP-induced hypotension led to increased number of c-Fos positive neurons in the intermediolateral cell column of the middle thoracic spinal regions and increased blood epinephrine levels. Pretreatment with microinjection of glutamate receptor antagonists (MK-801 and CNQX) into the MVN or RVLM prevented the increased number of c-Fos positive neurons resulting from SNP-induced hypotension, and reversed the increased blood epinephrine levels. These results indicate that the VSA axis may be a key component of the pathway used by the vestibulosympathetic reflex to maintain blood pressure during postural movements.
Animals ; Axis, Cervical Vertebra* ; Blood Pressure* ; Denervation ; Epinephrine ; Excitatory Amino Acid Antagonists ; Glutamic Acid ; Hypotension ; Immunoenzyme Techniques ; Microinjections ; Neurons ; Nitroprusside ; Rats* ; Receptors, Glutamate ; Reflex* ; Vestibular Nuclei ; Natural Resources

Objective: To quantify the burden of cardiovascular disease (CVD) deaths that attributed to metabolic disorders in population aged ≥25 years in Jiangsu province. Methods: The data we used were from the following three sources: 1) 2015 Jiangsu Chronic Disease Risk Factor and Nutrition Survey, 2) death surveillance, 3) results of the 2016 Global Burden of Disease Study, based on population attributable fractions (PAF), to analyze related parameters as mortality, years of life lost (YLL), life expectancy (LE) and premature mortality. Results: Most people died from ischemic stroke (IS) showed the standard mortality as 87.48/100 000. High SBP appeared as the major cause on CVD deaths. PAF with high cholesterol and high BMI decreased along with the increase of age while high fasting plasma glucose increased. Deaths due to ischemic heart diseases, IS or hemorrhagic stroke that attributed to metabolism disorders would reduce the LE by 1.08, 1.07 or 0.55 years, respectively. Males appeared to have higher YLL than females and were more likely to die from premature CVD, as the consequence of having metabolism disorders. Conclusions: Blood pressure control should be considered an important approach to reduce the burden of CVD. According to the characteristics of gender-related risks and the distinct impact of age-related metabolism disorders on different CVD diseases, stratified strategies should be strengthened for comprehensive prevention and control of CVD, in Jiangsu province.
Adult ; Blood Pressure ; Cardiovascular Diseases/epidemiology* ; Chronic Disease ; Cost of Illness ; Female ; Humans ; Life Expectancy ; Male ; Metabolic Diseases/epidemiology* ; Mortality/trends* ; Mortality, Premature ; Risk Factors

Both the increasing prevalence and growing burden of diabetes mellitus have caused global public health concerns. With the development of bio-psycho-social medical model, the impact of psychosocial factors on diabetes has attracted more attentions among the researchers. This paper summarizes findings from epidemiological studies that focusing on the association between diabetes and related psychosocial risk factors. Foreign studies have shown that psychological factors are closely related to diabetes, but the conclusions on social factors are inconsistent. Domestic studies have only targeted on small-sample-sized and cross-sectional studies. More longitudinal research is needed to confirm the impact of psychosocial factors on the risk of diabetes.
China/epidemiology* ; Cross-Sectional Studies ; Diabetes Mellitus/psychology* ; Humans ; Incidence ; Prevalence ; Risk Factors ; Social Environment ; Social Support

Objective: To understand the awareness of hepatic disease related knowledge among hepatic physicians in poverty-stricken counties in China, assess the effectiveness of training and provide a reference for the training in the future. Methods: The training was conducted in 90 clinical hepatic physicians selected from county hospitals in poverty-stricken counties (or cities) in Shanxi and Shaanxi provinces. An examination was conducted before the training, immediately after the training and at 5(th) month after the training, respectively. One-way analysis of variance and χ(2) test were conducted to evaluate the score and the correct rate. Results: The knowledge score was (42.96±14.02) before the training, (62.86±13.28) immediately after the training and (59.03±17.92) at 5(t)h month after the training, and the differences were significant. After the training, the awareness of all aspects of related knowledge was improved, the difference was significant compared to knowledge score before training, and at 5(th) month after the training, the difference was still significant. Conclusion: After the training, the awareness of liver disease related knowledge of clinical hepatic physicians in poverty-stricken counties (cities) in Shanxi and Shaanxi provinces was improved, and the improvement could be maintained for nearly half a year.
Awareness ; China/epidemiology* ; Clinical Competence ; Female ; Health Knowledge, Attitudes, Practice ; Humans ; Liver Diseases/therapy* ; Physicians ; Poverty Areas ; Program Evaluation ; Staff Development/methods* ; Surveys and Questionnaires

Objective: To understand the characteristics and dynamic of HIV-1 subtype distribution in men who have sex with men (MSM) in Guangzhou between 2008 and 2015. Methods: HIV-1 RNAs were extracted from serum samples of the individuals newly diagnosed with HIV-1 infection among MSM living in Guangzhou between 2008 and 2015. The pol gene segments of HIV-1 genome from these RNA samples were amplified by nested reverse transcription polymerase chain reaction (nested-PCR) and were sequenced. Subsequently, the phylogenetic tree was reconstructed using pol sequences of samples and references together and the subtype of HIV-1 was determined. The distributions of HIV-1 subtypes detected in MSM with different demographic characteristics in different years were compared. Results: A total of 2 210 pol gene segments were successfully obtained from 2 473 serum samples of the MSM. The average age of 2 210 MSM was 30.19 years with standard deviation of 8.22 years, the unmarried MSM and those in Han ethnic group accounted for 73.39% and 90.81%, respectively. The proportion of subtype CRF07_BC (38.10%) was highest, followed by CRF01_AE (34.84%), CRF55_01B (14.62%), B (6.06%), URFs (3.58%), CRF59_01B (2.17%) and other subtypes (0.63%). The annual proportions of subtype B (P=0.000, 99%CI:0.000-0.000), CRF07_BC (χ(2)=14.965, P=0.036), CRF55_01B (χ(2)=18.161, P=0.011) and URFs (P=0.001, 99% CI: 0.000-0.001) were significantly different. The proportion of subtype B showed a gradual decrease from 14.08% to 4.33% (P=0.000, 99%CI: 0.000-0.000), while the proportion of URFs rapidly increased from 0% to 6.40% (P=0.000, 99% CI: 0.000-0.000). The rate of URFs was significantly higher in farmers and migrant workers than in other groups (P=0.017, 99%CI: 0.014- 0.020) and the rate of URFs was higher in individuals who had multi sexual partners (χ(2)=5.733, P=0.017). Conclusions: CRF07_BC and CRF01_AE were the predominant HIV-1 subtypes and multiple subtypes co-circulated among MSM in Guangzhou between 2008 and 2015. The recombinations of HIV-1 continue to occur in MSM. Strengthening behavioral intervention for farmers, migrant workers and individuals who have multi sexual partners has the important epidemiological significance against the emerging and circulating of the novel recombinant virus among MSM in Guangzhou.
China/epidemiology* ; Genes, pol ; Genotype ; HIV Infections/virology* ; HIV Seropositivity/genetics* ; HIV-1/isolation & purification* ; Homosexuality, Male ; Humans ; Male ; Phylogeny ; Polymerase Chain Reaction ; RNA, Viral/blood* ; Sexual Behavior

Objective: To understand the prevalence of drug resistance in treatment-naive injecting drug users (IDUs) infected with HIV-1 in Guangzhou. Methods: HIV-1 RNA were extracted from the serum specimens of the newly confirmed HIV-1 positive IDUs living in Guangzhou, being infected through injecting drug use and receiving no antiretroviral therapy at the time of confirmation during 2008-2015. Full sequence of pol protease (PR) gene and partial sequence of reverse transcriptase (RT) gene were amplified by nested reverse transcription polymerase chain reaction (nested-PCR) and sequenced. After that, data were submitted to the HIV resistance database of Stanford University for drug resistance analysis. Results: Among the 518 HIV-1 infected IDUs, HIV-1pol gene segments were successfully obtained from the serum samples of 407 HIV-1 infected IDUs (78.57%) aged 18-64 (37.44±8.14) years. Among them, males accounted for 89.68% (365/407), those of Han ethnic group accounted for 89.93% (366/407), the unmarried accounted for 55.28% (225/407), and those with education level of junior high school or below accounted for 83.78% (341/407). The distribution of subtypes was predominated by CRF07_BC (47.18%, 192/407), followed by CRF01_AE (23.83%, 97/407), CRF08_BC (22.85%, 93/407), and other subtypes (6.14%, 25/407). The overall prevalence of drug resistance was 3.44% (14/407). The prevalence of drug resistance to protease inhibitors, nucleoside reverse transcriptase inhibitors and non-nucleoside reverse transcriptase inhibitors were 1.47%(6/407), 0.25% (1/407) and 1.72% (7/407) respectively. The mutation rate was 12.29% (50/407). No major drug resistance mutation was detected in protease and nucleoside reverse transcriptase regions. Higher rate of V179E mutation in the non-nucleoside reverse transcriptase region was detected in other subtypes and subtype CRF07_BC. Mutation seemed to have occurred in all 8 cases of subtype CRF55_01B in other subtypes. The highest mutation rate of E138A was detected in subtype CRF08_BC (3.23%). Two cases were resistant to all four drugs of NNRTIs. Conclusions: The prevalence of drug resistance in treatment-naive HIV-1 positive IDUs remained at a relatively low level during 2008-2015, in Guangzhou. Most infections were sensitive to existing antiviral drugs. However, drug resistance surveillance in IDUs infected with HIV should be strengthened to prevent the prevalence of multi-drug resistance and cross drug resistance.
Adolescent ; Adult ; Child ; Drug Resistance, Viral/genetics* ; Drug Users ; Genes, pol/genetics* ; Genotype ; HIV Infections/psychology* ; HIV-1/isolation & purification* ; Humans ; Male ; Mutation ; Prevalence ; RNA, Viral/genetics* ; Young Adult