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Pengfei Fan, Yang Liu, Zhechun Zhang, Chao Zhao, Cheng Li, Wulin Liu, Zhijin Liu, Ming Li
The white-cheeked macaque Macaca leucogenys is a recently described species that was only diagnosed based on photos, without any specimen measurements or molecular genetic diagnosis. Using extracted DNA from four newly collected skin specimens, we studied the genetic diversity and phylogenetic position of M. leucogenys using multilocus sequence data, including mitochondrial and Y chromosomal genes. Skin measurements of four individuals showed that the white-cheeked macaque is robust and larger than M. assamensis but is similar in body size to M...
October 18, 2016: Molecular Phylogenetics and Evolution
Khursheed Ahmad, Ved P Kumar, Bheem Dutt Joshi, Mohamed Raza, Parag Nigam, Anzara Anjum Khan, Surendra P Goyal
BACKGROUND: The Tibetan antelope (Pantholops hodgsonii), or chiru, is an endangered antelope, distributed in China [Xinjiang, Xizang, Qinghai, Zhuolaihu Lake (Breeding habitat)], and India (Aksai Chin and Ladakh). There is a global demand for the species prized wool, which is used in weaving shahtoosh shawls. Over the years, the population of the Tibetan antelope has drastically declined from more than a million to a few thousand individuals, mainly due to poaching. Field studies undertaken in Ladakh, India also indicated winter migration of the population to Tibet...
October 21, 2016: BMC Research Notes
K Bień, S Lewicki, R Zdanowski, E Skopinska-Różewska, M Krzyżowska
Plants belonging to Rhodiola kirilowii species, members of Rhodiola genus and Crassulaceae family, grow wildly in Tibet, Mongolia and China mountains and are traditionally used as adaptogens, antidepressants and anti-inflammatory remedies. Nowadays, R. kirilowii is cultivated in some countries, also in Poland. In our previous papers we reported immuno- and angio-modulatory effects of aqueous and hydro-alcoholic extracts of radix and rhizome of this plant in non-pregnant and pregnant mice. The aim of the present study was to evaluate the effect of feeding pregnant and further lactating mice these extracts on selected thymus function parameters in adult progeny...
September 1, 2016: Polish Journal of Veterinary Sciences
Burcu Örmeci, Egemen Avcı, Çigdem Kaspar, Özlem Eranıl Terim, Tibet Erdoğru, A Emre Öge
OBJECTIVES: To examine the diagnostic value of pudendal somatosensory evoked potentials (SEP) in pudendal nerve entrapment neuropaty (PNE) by stimulating the two sides separately after provocation by a standard sitting position. Routine pudendal SEPs performed in the supine position with bilateral simultaneous stimulation may fail to show the abnormality because the complaints of PNE appear or worsen in the sitting position. METHODS: Forty-nine patients with PNE and 16 controls were included...
October 7, 2016: Urology
Dongyu Liu, Kun Li, Lihong Zhang, Yanfang Lan, Xiaoqiang Wang, Hui Zhang, Lei Wang, Rui Gui, Zhaoqing Han, Wenteng Jang, Suolang Sizhu, Jiakui Li
Bovine ephemeral fever (BEF) is caused by the arthropod-borne bovine ephemeral fever virus (BEFV), which is classified in family Rhabdoviridae and genus Ephemerovirus. However, it is still unclear whether yaks from the Tibetan plateau of China are exposed to BEFV. It is the first time that a survey was conducted to investigate the seroprevalence of BEFV infection in yaks (Bos grunniens) on the Tibetan Plateau of China. A total of 1123 serum samples were collected randomly from yaks from 2012 to 2015 and were assayed for BEFV antibodies by enzyme-linked immunosorbent assay (ELISA)...
October 8, 2016: Tropical Animal Health and Production
Nathan S Bertelsen, Elizabeth Selden, Polina Krass, Eva S Keatley, Allen Keller
Effective screening in primary care among asylum-seekers in the US is critical as this population grows. This study aimed to evaluate disease prevalence and screening methods in this high-risk group. Two hundred ten new clients from 51 countries, plus Tibet, who were accepted into a program for asylum seekers from 2012 to 2014 were included. Screening rates and outcomes for infectious, non-communicable, and mental illnesses were evaluated. Screening rates were highest for PTSD, depression, hepatitis B, and latent tuberculosis...
October 4, 2016: Journal of Immigrant and Minority Health
Xiangyang Sun, Genxu Wang, Mei Huang, Ruiying Chang, Fei Ran
Tibet's forests, in contrast to China's other forests, are characterized by primary forests, high carbon (C) density and less anthropogenic disturbance, and they function as an important carbon pool in China. Using the biomass C density data from 413 forest inventory sites and a spatial forest age map, we developed an allometric equation for the forest biomass C density and forest age to assess the spatial biomass C stocks and variation in Tibet's forests from 2001 to 2050. The results indicated that the forest biomass C stock would increase from 831...
October 5, 2016: Scientific Reports
Tingting Dong, Guo Zheng, Zhiyuan Yao, Shuqiang Li
Thirteen new species from four species groups of the genus Pholcus Walckenaer, 1805 are described from China: Pholcus yanjinensis sp. nov. (male & female, Yunnan) from the P. bidentatus species group; P. jingyangensis sp. nov. (male & female, Shaanxi), P. langensis sp. nov. (male & female, Henan) and P. longus sp. nov. (male & female, Beijing) from the P. crypticolens species group; P. huoxiaerensis sp. nov. (male, Xinjiang) from the P. ponticus species group; P. difengensis sp. nov. (male, Chongqing), P. gonggarensis sp...
September 22, 2016: Zootaxa
Jing Chen, Liyun Jiang, Gexia Qiao
Hybothoracaphis gen. nov. with one new species Hybothoracaphis laevigata sp. nov. on Quercus aquifolioides from Tibet, China is described and illustrated in the aphid tribe Nipponaphidini. The phylogenetic position of the new genus within Nipponaphidini is investigated using multiple genes, and a key to Hybothoracaphis and allied genera is provided.
September 23, 2016: Zootaxa
Wenyan Zhu, Jinzhou Wang, Zhenhua Zhang, Fei Ren, Litong Chen, Jin-Sheng He
The effects of nitrogen (N) and phosphorus (P) addition on litter decomposition are poorly understood in Tibetan alpine meadows. Leaf litter was collected from plots within a factorial N × P addition experiment and allowed to decompose over 708 days in an unfertilized plot to determine the effects of N and/or P addition on litter decomposition. Results showed that nutrient addition significantly affected initial P and P-related biochemical properties of litter from all four species. However, the responses of litter N and N-related biochemical properties to nutrient addition were quite species-specific...
October 3, 2016: Scientific Reports
Weihua Wang, Feng Liu, Zhicheng Zhang, Yi Zhang, Xiaojing Fan, Ruru Liu, Shaonong Dang
Studies on growth pattern of Tibetan infants and the difference from other child groups were limited due to its special living environment and unique customs. In this study, 253 Tibetan infants were followed-up from their birth to 12(th) month in rural Tibet. Five visits were conducted and weight and length were measured at each visit. Mixed model was employed to analyze the growth pattern of Tibetan infants and its comparison to the Han infants. Propensity Scores (PS) technique was adopted to control for the potential confounding factors...
October 3, 2016: Scientific Reports
Jun Wu, Jian Lu, Yongming Luo, Dongping Duan, Zhenhua Zhang, Xiaohu Wen, Xiuyun Min, Xiaoying Guo, Brian J Boman
The Qinghai-Tibet Plateau plays an important role in the ecological safety and human health of the surroundings due to its unique geographical position and function. Therefore, it is necessary to study the pollution status and potential risk in this area. This study summarizes the distribution of different organic pollutants in biota and environmental media of the Qinghai-Tibet Plateau. Moreover, it also pays attention to the potential health risks of these organic pollutants. Organochlorine pesticides (OCPs), polycyclic aromatic hydrocarbons (PAHs), polychlorinated biphenyls (PCBs), and polybrominated diphenyl ethers (PBDEs) were the most frequently detected in different matrices...
September 29, 2016: Environment International
Ji Chen, Jinqiang Li, Qiaoqing Han, Jianzhong Lin, Tianhe Yang, Ziqian Chen, Jiaxing Zhang
BACKGROUND: Structural and functional networks can be reorganized to adjust to environmental pressures and physiologic changes in the adult brain, but such processes remain unclear in prolonged adaptation to high-altitude (HA) hypoxia. This study aimed to characterize the interhemispheric functionally and structurally coupled modifications in the brains of adult HA immigrants. METHODS: We performed resting-state functional magnetic resonance imaging (fMRI) and diffusion tensor imaging (DTI) in 16 adults who had immigrated to the Qinghai-Tibet Plateau (2300-4400 m) for 2 years and in 16 age-matched sea-level (SL) controls...
September 2016: Brain and Behavior
Quanjun Hu, Huichao Peng, Hao Bi, Zhiqiang Lu, Dongshi Wan, Qian Wang, Kangshan Mao
Interspecific hybridization and introgression can lead to partial genetic homogenization at certain neutral loci between morphologically distinct species and may obscure the species delimitation using nuclear genes. In this study, we investigated this phenomenon through population genetic survey of two alpine plants (Gentiana siphonantha and G. straminea) in the Qinghai-Tibet Plateau, where the distributions of two species are partly overlapped. We identified two clusters of chloroplast DNA haplotypes which correspond to the two species, and three clusters of ITS ribotypes...
September 30, 2016: Scientific Reports
Jing Zhang, Kai Han, Chun-Hui Wang, Ping-Jiao Chen, Yan Gao, Qi Wang, Meng-Lei Wang, Shan-Shan Wei, Zheng-Hui Yang, Zhi-Li Hu, Mei Zeng, Kang Zeng
OBJECTIVE: To assess the distribution and systemic toxicity of podophyllotoxin-loaded nanostructured lipid carriers (POD-NLC) after topical application on the cervical mucosa in Tibet minipigs. METHODS: Twelve Tibet mini-pigs were randomized into test group and control group to receive topical application of 0.5% POD-NLC and 0.5% POD tincture, respectively, on the cervical mucosa. Cervical mucosal irritation, targeted distribution and systemic absorption of POD were observed at different time points within 24 h after the drug application...
August 20, 2016: Nan Fang Yi Ke da Xue Xue Bao, Journal of Southern Medical University
Lixin Lyu, Xu Deng, Qi-Bin Zhang
It is generally expected that inter-annual changes in radial growth among trees would be similar to the increase in altitude due to the limitation of increasingly harsher climatic factors. Here, we examine whether this pattern exists in alpine forests on the southeastern Tibetan Plateau. Increment cores were collected from mature trees at the lower, middle and upper limits of balfour spruce (Picea likiangensis var. balfouriana (Rehd. et Wils.) Hillier ex Slsvin) forests at the Buze and Yela Mountains in Basu County, Changdu Prefecture of Tibet, China...
2016: PloS One
Fujun Niu, Guodong Cheng, Yonghong Niu, Mingyi Zhang, Jing Luo, Zhanju Lin
Permafrost is determined to a large extent by the Earth's surface temperature, therefore it distributes mainly in high altitude and latitude regions. However, stable, warm (about -1 °C) permafrost occurs within a scree slope in northern China that is more than 600 km south of the southernmost limit of latitudinal permafrost on the Eurasian Continent. It is at an elevation of only 900 m above sea level (ASL). The area has a mean annual air temperature (MAAT) of 6 to 8 °C. Thermal processes of the scree slope, investigated through field monitoring and numerical simulation, showed that the permafrost is caused by winter air convection within the porous rock deposits and is stable as air convection does not occur in summer time...
September 29, 2016: Scientific Reports
Zeyong Gao, Fujun Niu, Yibo Wang, Jing Luo, Zhanju Lin
The formation of thermokarst lakes can degrade alpine meadow ecosystems through changes in soil water and heat properties, which might have an effect on the regional surface water and groundwater processes. In this study, a typical thermokarst lake was selected in the Qinghai-Tibet Plateau (QTP), and the ecological index (SL) was used to divide the affected areas into extremely affected, severely affected, medium-affected, lightly affected, and non-affected areas, and soil hydrological properties, including saturated hydraulic conductivity and soil water-holding capacity, were investigated...
September 21, 2016: Science of the Total Environment
Zhen Ye, Pingping Chen, Wenjun Bu
This study investigated the influences of geographic isolation and climate fluctuation on the genetic diversity, speciation, and biogeography of the genus Pseudovelia (Hemiptera: Veliidae) in subtropical China and tropic Indo-China Peninsula. Species nucleotide and haplotype diversities decreased with reduction in species distribution limits. The gene tree was congruent with the taxonomy of monophyly, except for four species, P. contorta, P. extensa, P. tibialis tibialis, and P. vittiformis. The conflicts between the genes and species tree could be due to long-term isolation and incomplete lineage sorting...
2016: Scientific Reports
Xuzhen Wang, Xiaoni Gan, Junbing Li, Yiyu Chen, Shunping He
Origin and diversification of the Tibetan polyploid cyprinids (schizothoracins) may help us to explore relationships between diversification of the cyprinids and the Tibetan Plateau uplift. Cyprininae phylogeny was analyzed using mitochondrial and nuclear DNA sequences to trace origins of polyploidy and diversifications of schizothoracins. Ancestral states reconstruction for ploidy levels indicated that the Cyprininae was diploid origin and the schizothoracin clades tetraploid origins. There were two diversification rate shifts along with diversification of the cyprinine fishes in response to the Tibetan uplift...
September 20, 2016: Science China. Life Sciences
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