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https://www.readbyqxmd.com/read/28647971/-association-between-body-fat-percentage-visceral-fat-index-and-cardiometabolic-risk-factor-clustering-among-population-aged-35-year-old-or-over-in-tibet-autonomous-region-and-xinjiang-uygur-autonomous-region
#1
J L Wang, Z Chen, L F Zhang, X Wang, Y Dong, J Y Nie, C Y Zheng, L Shao, Y Tian, Z W Wang
Objective: To investigate the association between body fat percentage (BFP), visceral fat index (VFI) and Cardiometabolic Risk Factor Clustering (CRFC), among population aged 35 or older in Tibet and Xinjiang areas. Methods: Using the stratified multi-stage random sampling method, 7 571 residents aged 35 or above were examined with international standardized examination between 2015 and 2016. Of the eligible 5 643 participants, association of BFP and VFI with CRFC was defined as having two or more of the four risk factors: hypertension, diabetes mellitus, high TG and low HDL-C, at the same time...
June 10, 2017: Zhonghua Liu Xing Bing Xue za Zhi, Zhonghua Liuxingbingxue Zazhi
https://www.readbyqxmd.com/read/28647970/-association-between-the-types-of-obesity-and-the-10-year-coronary-heart-disease-risk-in-tibet-autonomous-region-and-xinjiang-uygur-autonomous-region
#2
C Y Zheng, Z W Wang, Z Chen, L F Zhang, X Wang, Y Dong, J Y Nie, J L Wang, L Shao, Y Tian
Objective: To investigate the association between types of obesity and the 10-year-coronary heart disease risk in Tibet and Xinjiang of China. Methods: Using the multi-stage random sampling method, 7 631 participants aged 35 or older were examined under the International Standardized Examination process but with only 5 802 were eligible for analysis, in the 2015-2016 season. Results: The prevalence rates of general obesity, central obesity, visceral obesity and compound obesity were 0.53%, 12.62%, 10.08% and 42...
June 10, 2017: Zhonghua Liu Xing Bing Xue za Zhi, Zhonghua Liuxingbingxue Zazhi
https://www.readbyqxmd.com/read/28646198/spatiotemporal-dynamics-of-grassland-aboveground-biomass-on-the-qinghai-tibet-plateau-based-on-validated-modis-ndvi
#3
Shiliang Liu, Fangyan Cheng, Shikui Dong, Haidi Zhao, Xiaoyun Hou, Xue Wu
Spatiotemporal dynamics of aboveground biomass (AGB) is a fundamental problem for grassland environmental management on the Qinghai-Tibet Plateau (QTP). Moderate Resolution Imaging Spectroradiometer (MODIS) Normalized Difference Vegetation Index (NDVI) data can feasibly be used to estimate AGB at large scales, and their precise validation is necessary to utilize them effectively. In our study, the clip-harvest method was used at 64 plots in QTP grasslands to obtain actual AGB values, and a handheld hyperspectral spectrometer was used to calculate field-measured NDVI to validate MODIS NDVI...
June 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28630484/simulated-responses-of-permafrost-distribution-to-climate-change-on-the-qinghai-tibet-plateau
#4
Qing Lu, Dongsheng Zhao, Shaohong Wu
Climate warming causes changes in permafrost distribution, which affects the surface energy balance, hydrologic cycle and carbon flux in cold regions. In this study, the Surface Frost Number model was applied to examine permafrost distribution on the Qinghai-Tibet Plateau (QTP) under the four RCPs (RCP2.6, RCP4.5, RCP6.0, and RCP8.5). The Kappa statistic was used to evaluate model results by comparing simulations of baseline permafrost distribution (1981-2010) with the existing frozen soil maps. The comparison shows that the Surface Frost Number model is suitable for simulating the general characteristics of permafrost distribution on the QTP...
June 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28629509/actinomyces-vulturis-sp-nov-isolated-from-gyps-himalayensis
#5
Xiangli Meng, Shan Lu, Yiting Wang, Xin-He Lai, Yumeng Wen, Dong Jin, Jing Yang, Xiangning Bai, Gui Zhang, Ji Pu, Riuting Lan, Jianguo Xu
Two strains of Gram-stain-positive, facultatively anaerobic, non-spore-forming short rods (VUL7T and VUL8) were isolated from rectal swabs of Old World vultures, namely Gyps himalayensis, in Tibet-Qinghai Plateau, China. Optimal growth occurred at 37 °C, pH 6-7, with 1 % (w/v) NaCl. Phylogenetic analysis based on 16S rRNA gene sequences classified the two strains to the genus Actinomyces, with highest 16S rRNA gene sequence similarity (95 %) to type strains of Actinomyces haliotis, Actinomyces radicidentis and Actinomyces urogenitalis...
June 20, 2017: International Journal of Systematic and Evolutionary Microbiology
https://www.readbyqxmd.com/read/28629506/actinomyces-liubingyangii-sp-nov-isolated-from-the-vulture-gypaetus-barbatus
#6
Xiangli Meng, Shan Lu, Xin-He Lai, Yiting Wang, Yumeng Wen, Dong Jin, Jing Yang, Jianguo Xu
Two strains (VUL4_1T and VUL4_2) of Gram-staining-positive, catalase-negative, non-spore-forming short rods were isolated from rectal swabs of Old World vultures (Gypaetus barbatus) in the Tibet-Qinghai Plateau, China. Analysis of morphological characteristics and biochemical tests indicated that the two strains closely resembled each other but were distinct from other species of the genus Actinomyces previously described. Based on the results of 16S rRNA gene sequence comparison and genome analysis, strains were determined to be members of the genus Actinomyces, closely related to the type strains of Actinomyces marimammalium (96...
June 20, 2017: International Journal of Systematic and Evolutionary Microbiology
https://www.readbyqxmd.com/read/28624927/seroprevalence-and-risk-factors-for-bovine-brucellosis-in-domestic-yaks-bos-grunniens-in-tibet-china
#7
Jiangyong Zeng, Ciren Duoji, Zhenjie Yuan, Silang Yuzhen, Weixing Fan, Lili Tian, Chang Cai, Ian Robertson
A cross-sectional study was conducted in three counties (Damxung, Maizhokunggar and Yadong) in Tibet in April and May 2015. A total of 1,523 yaks owned by 181 herders were randomly selected and blood sampled. Sera were tested using the rose bengal test (RBT) and a competitive immune-enzymatic assay (C-ELISA) and the test results interpreted in parallel. The individual yak prevalence was 2.8% (95% CI 2.0-3.7) with a herd prevalence of 18.2% (95% CI 12.9-24.6). At the individual level, two predictor variables, age and production system, were significantly associated with seropositivity by a binary logistic regression analysis...
June 17, 2017: Tropical Animal Health and Production
https://www.readbyqxmd.com/read/28619099/differentiated-demographic-histories-and-local-adaptations-between-sherpas-and-tibetans
#8
Chao Zhang, Yan Lu, Qidi Feng, Xiaoji Wang, Haiyi Lou, Jiaojiao Liu, Zhilin Ning, Kai Yuan, Yuchen Wang, Ying Zhou, Lian Deng, Lijun Liu, Yajun Yang, Shilin Li, Lifeng Ma, Zhiying Zhang, Li Jin, Bing Su, Longli Kang, Shuhua Xu
BACKGROUND: The genetic relationships reported by recent studies between Sherpas and Tibetans are controversial. To gain insights into the population history and the genetic basis of high-altitude adaptation of the two groups, we analyzed genome-wide data in 111 Sherpas (Tibet and Nepal) and 177 Tibetans (Tibet and Qinghai), together with available data from present-day human populations. RESULTS: Sherpas and Tibetans show considerable genetic differences and can be distinguished as two distinct groups, even though the divergence between them (~3200-11,300 years ago) is much later than that between Han Chinese and either of the two groups (~6200-16,000 years ago)...
June 15, 2017: Genome Biology
https://www.readbyqxmd.com/read/28617973/hepatitis-b-virus-infection-in-preconception-period-among-women-of-reproductive-age-in-rural-china-a-nationwide-study
#9
Qiongjie Zhou, Xiaotian Li, Qiaomei Wang, Haiping Shen, Yiping Zhang, Shikun Zhang, Ganesh Acharya
BACKGROUND: Hepatitis B virus (HBV) infection during pregnancy is associated with perinatal complications and poor maternal and fetal outcomes. There is a lack of reports on HBV infection screening, prophylaxis, and/or treatment in preconception period among women planning a pregnancy. This study is to investigate the prevalence and demographic characteristics of HBV infection among rural women of reproductive age planning pregnancy within 6 months, in different geographical regions of China...
June 15, 2017: Paediatric and Perinatal Epidemiology
https://www.readbyqxmd.com/read/28612235/bio-logging-new-technologies-to-study-conservation-physiology-on-the-move-a-case-study-on-annual-survival-of-himalayan-vultures
#10
Sherub Sherub, Wolfgang Fiedler, Olivier Duriez, Martin Wikelski
Bio-logging, the on-animal deployment of miniaturised electronic data recorders, allows for the study of location, body position, and physiology of individuals throughout their ontogeny. For terrestrial animals, 1 Hz GPS-position, 3D-body acceleration, and ambient temperature provide standard data to link to the physiology of life histories. Environmental context is added at ever finer scales using remote sensing earth observation data. Here we showcase the use of such bio-logging approaches in a conservation physiology study on endangered Himalayan vultures (Gyps himalayensis)...
June 13, 2017: Journal of Comparative Physiology. A, Neuroethology, Sensory, Neural, and Behavioral Physiology
https://www.readbyqxmd.com/read/28610377/two-new-synonyms-from-tibet-diptera-empididae-clinocerinae
#11
Bradley J Sinclair
The subfamily Clinocerinae (Empididae, Diptera) are aquatic dance flies, most commonly encountered in fast flowing rocky streams and creeks. The adults often rest on emergent rocks and are rather common in temperate regions.
May 16, 2017: Zootaxa
https://www.readbyqxmd.com/read/28610055/two-new-species-of-i-amphinemura-i-plecoptera-nemouridae-from-tibet
#12
Weihai Li, Ying Wang, Ding Yang
Two new species of the nemourid genus Amphinemura are described based on recent material collected from the Tibet Autonomous Region of China. The new taxa include A. chayuensis sp. nov. and A. hexalobata sp. nov., the latter species is respresented by both sexes. The new species are compared to related taxa.
March 28, 2017: Zootaxa
https://www.readbyqxmd.com/read/28607936/epidemiological-survey-and-phylogenetic-characterization-of-cysticercus-tenuicollis-isolated-from-tibetan-pigs-in-tibet-china
#13
Houqiang Luo, Hui Zhang, Kun Li, Mujeeb Ur Rehman, Khalid Mehmood, Yanfang Lan, Shucheng Huang, Jiakui Li
Cysticercus tenuicollis, commonly known as "water bell," is a larva of Taenia hydatigena, which is the most significant parasite of pigs. However, until now very few information is available regarding the prevalence and genetic characterization of the Cysticercus tenuicollis in Tibetan pigs. Therefore, the aim of this study was to investigate the prevalence and phylogenetic analysis of Cysticercus tenuicollis in Tibetan pigs. For this purpose, the COX2 gene of Cysticercus tenuicollis was amplified and sequenced for the first time in Tibetan pigs...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28607451/vertical-crustal-motions-across-eastern-tibet-revealed-by-topography-dependent-seismic-tomography
#14
Xinyan Zhang, Yanghua Wang, Rui Gao, Tao Xu, Zhiming Bai, Xiaobo Tian, Qiusheng Li
Using a topography-dependent tomographic scheme, the seismic velocity structure of the Eastern Tibetan Plateau, including the uplifted Longmenshan (LMS) orogenic belt, is accurately imaged in spite of the extreme topographic relief in the LMS region and thick sedimentary covers in the neighbouring Sichuan Basin. The obtained image shows a high-resolution upper crustal structure on a 500 km-long profile that is perpendicular to the LMS. The image clearly shows that the crystalline basement was uplifted within the LMS orogenic belt, and that the neighbouring Songpan-Ganzi Terrane was covered by a thick flysch belt, with evidence of near-surface thrust faults caused by convergence between Eastern Tibet and the Sichuan Basin...
June 12, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28607415/molecular-phylogenies-indicate-a-paleo-tibetan-origin-of-himalayan-lazy-toads-scutiger
#15
Sylvia Hofmann, Matthias Stöck, Yuchi Zheng, Francesco G Ficetola, Jia-Tang Li, Ulrich Scheidt, Joachim Schmidt
The Himalaya presents an outstanding geologically active orogen and biodiversity hotspot. However, our understanding of the historical biogeography of its fauna is far from comprehensive. Many taxa are commonly assumed to have originated from China-Indochina and dispersed westward along the Himalayan chain. Alternatively, the "Tibetan-origin hypothesis" suggests primary diversification of lineages in Paleo-Tibet, and secondary diversification along the slopes of the later uplifted Greater Himalaya. We test these hypotheses in high-mountain megophryid anurans (Scutiger)...
June 12, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28605857/effects-of-warming-and-nitrogen-fertilization-on-ghg-flux-in-an-alpine-swamp-meadow-of-a-permafrost-region
#16
Xiaopeng Chen, Genxu Wang, Tao Zhang, Tianxu Mao, Da Wei, Chunlin Song, Zhaoyong Hu, Kewei Huang
Uncertainties in the seasonal changes of greenhouse gases (GHG) fluxes in wetlands limit our accurate understanding of the responses of permafrost ecosystems to future warming and increased nitrogen (N) deposition. Therefore, in an alpine swamp meadow in the hinterland of the Qinghai-Tibet Plateau, a simulated warming with N fertilization experiment was conducted to investigate the key GHG fluxes (ecosystem respiration [Re], CH4 and N2O) in the early (EG), mid (MG) and late (LG) growing seasons. Results showed that warming (6...
June 8, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28605854/central-tibetan-plateau-atmospheric-trace-metals-contamination-a-500-year-record-from-the-puruogangri-ice-core
#17
Emilie Beaudon, Paolo Gabrielli, M Roxana Sierra-Hernández, Anna Wegner, Lonnie G Thompson
A ~500-year section of ice core (1497-1992) from the Puruogangri ice cap has been analyzed at high resolution for 28 trace elements (TEs: Ag, Al, As, Ba, Bi, Cd, Co, Cr, Cs, Cu, Fe, Ga, Li, Mg, Mn, Na, Nb, Ni, Pb, Rb, Sb, Sn, Sr, Ti, Tl, U, V and Zn) to assess different atmospheric contributions to the ice and provide a temporal perspective on the diverse atmospheric influences over the central Tibetan Plateau (TP). At least two volcanic depositions have significantly impacted the central TP over the past 500years, possibly originating from the Billy Mitchell (1580, Papua New Guinea) and the Parker Peak (1641, Philippines) eruptions...
June 7, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28598318/paracoccus-hibisci-sp-nov-isolated-from-the-rhizosphere-of-hibiscus-syriacus-l-mugunghwa-flower
#18
Zheng-Fei Yan, Gabriela Moya, Pei Lin, Kyung-Hwa Won, Jung-Eun Yang, Chang-Tian Li, MooChang Kook, Qi-Jun Wang, Tae-Hoo Yi
A Gram-stain-negative, aerobic, short-rod-shaped bacterium, motile by means of one flagellum (THG-T2.8T), was isolated from the rhizosphere of Mugunghwa flower. Growth occurred at 10-37 °C (optimum 28 °C), at pH 6-8 (optimum 7) and with 0-5 % NaCl (optimum 1 %). The major quinone was ubiquinone-10 (Q-10). The major fatty acids were C10 : 0 3-OH, C16 : 0, C18 : 0 and C18 : 1ω7c. The polar lipids were diphosphatidylglycerol, phosphatidylmethylethanolamine, phosphatidylethanolamine, phosphatidylglycerol, one unidentified aminolipid, two unknown phospholipids, one unknown glycolipid and one unidentified lipid...
June 9, 2017: International Journal of Systematic and Evolutionary Microbiology
https://www.readbyqxmd.com/read/28597045/biocontrol-activity-of-a-cold-adapted-yeast-from-tibet-against-gray-mold-in-cherry-tomato-and-its-action-mechanism
#19
Hao Hu, Michael E Wisniewski, Ahmed Abdelfattah, Xiaodong Zheng
Cold-adapted biocontrol yeast was selected from four yeast isolates from Tibet against gray mold of cherry tomato in cold storage. The strain numbered LB2 showed the best biocontrol activity and identified as Cryptococcus laurentii. Competition for nutrient, space, and induced fruit resistance was also its antagonistic mechanism. Compared with C. laurentii from sea-level place, the reason why LB2 had a better biocontrol activity was studied. More trehalose and proline in cell of LB2 made it exhibit a better cellular activity at low temperature, such as higher population dynamics in the wounds of cherry tomato and more biocontrol-related enzyme secretion, chitinase and β-glucanase...
July 2017: Extremophiles: Life Under Extreme Conditions
https://www.readbyqxmd.com/read/28596609/land-use-alters-arbuscular-mycorrhizal-fungal-communities-and-their-potential-role-in-carbon-sequestration-on-the-tibetan-plateau
#20
Meng Xu, Xiaoliang Li, Xiaobu Cai, Xiaolin Li, Peter Christie, Junling Zhang
Loss of belowground biodiversity by land-use change can have a great impact on ecosystem functions, yet appropriate investigations remain rare in high-elevation Tibetan ecosystems. We compared arbuscular mycorrhizal (AM) fungal communities in arable soils with those in native forest and grassland in southeast Tibet and investigated their potential contribution to carbon sequestration. The AM fungi were abundant and diverse. AM fungal diversity was significantly higher in grassland than in forest or arable land...
June 8, 2017: Scientific Reports
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