Institution
Qinghai University
Education•Xining, China•
About: Qinghai University is a education organization based out in Xining, China. It is known for research contribution in the topics: Population & Adsorption. The organization has 4425 authors who have published 3311 publications receiving 27957 citations. The organization is also known as: QHU.
Papers published on a yearly basis
Papers
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TL;DR: Identifying genes under selection in humans living at high altitudes provides support for previously hypothesized mechanisms of high-altitude adaptation and illuminates the complexity of hypoxia-response pathways in humans.
Abstract: Tibetans have lived at very high altitudes for thousands of years, and they have a distinctive suite of physiological traits that enable them to tolerate environmental hypoxia. These phenotypes are clearly the result of adaptation to this environment, but their genetic basis remains unknown. We report genome-wide scans that reveal positive selection in several regions that contain genes whose products are likely involved in high-altitude adaptation. Positively selected haplotypes of EGLN1 and PPARA were significantly associated with the decreased hemoglobin phenotype that is unique to this highland population. Identification of these genes provides support for previously hypothesized mechanisms of high-altitude adaptation and illuminates the complexity of hypoxia-response pathways in humans.
939 citations
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TL;DR: This review provides a comprehensive update of worldwide waterborne parasitic protozoan outbreaks that occurred with reports published since previous reviews largely between January 2011 and December 2016, and finds developing countries that are probably most affected by such waterborne disease outbreaks still lack reliable surveillance systems.
872 citations
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TL;DR: The Hai River had the highest ecotoxicological risk from antibiotics to algae, invertebrate, fish, and plant among China's major rivers, according to a review of occurrence of 94 antibiotics in water and sediments from seven major rivers and four seas in China during 2005-2016.
321 citations
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University of Utah1, University of Texas MD Anderson Cancer Center2, University of Oulu3, Harvard University4, University of Illinois at Chicago5, Qinghai University6, Icahn School of Medicine at Mount Sinai7, Sher-I-Kashmir Institute of Medical Sciences8, Rutgers University9, Johns Hopkins University10, Howard Hughes Medical Institute11, University of California, San Diego12
TL;DR: The c.[12C>G; 380G>C] mutation abrogates hypoxia-induced and HIF-mediated augmentation of erythropoiesis, which provides a molecular mechanism for the observed protection of Tibetans from polycythemia at high altitude.
Abstract: Tibetans do not exhibit increased hemoglobin concentration at high altitude. We describe a high-frequency missense mutation in the EGLN1 gene, which encodes prolyl hydroxylase 2 (PHD2), that contributes to this adaptive response. We show that a variant in EGLN1, c.[12C>G; 380G>C], contributes functionally to the Tibetan high-altitude phenotype. PHD2 triggers the degradation of hypoxia-inducible factors (HIFs), which mediate many physiological responses to hypoxia, including erythropoiesis. The PHD2 p.[Asp4Glu; Cys127Ser] variant exhibits a lower Km value for oxygen, suggesting that it promotes increased HIF degradation under hypoxic conditions. Whereas hypoxia stimulates the proliferation of wild-type erythroid progenitors, the proliferation of progenitors with the c.[12C>G; 380G>C] mutation in EGLN1 is significantly impaired under hypoxic culture conditions. We show that the c.[12C>G; 380G>C] mutation originated ~8,000 years ago on the same haplotype previously associated with adaptation to high altitude. The c.[12C>G; 380G>C] mutation abrogates hypoxia-induced and HIF-mediated augmentation of erythropoiesis, which provides a molecular mechanism for the observed protection of Tibetans from polycythemia at high altitude.
315 citations
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TL;DR: In this article, the extent and underlying causes of rangeland degradation on the Qinghai-Tibet Plateau in China through a comprehensive review of the literature are evaluated and different measures are proposed to rehabilitate rangelands that have been degraded by different mechanisms.
Abstract: With ever intensifying land use, land degradation is becoming an increasingly important issue around the world, especially in China. This paper evaluates the extent and underlying causes of rangeland degradation on the Qinghai-Tibet Plateau in China through a comprehensive review of the literature. Diverse forms and differing intensities of rangeland degradation have been reported in several regions of the Plateau. Rangeland degradation is particularly severe in South Qinghai, North Tibet and the Qaidam Basin. Anthropogenic activities, especially changing land use practices, are identified as the primary force driving rangeland degradation. Dissimilar to climate change-induced degradation, such anthropogenic degradation is a rather short-term process altering the abiotic properties of the underlying soil. On the basis of these findings, we assessed the prospects of rehabilitating degraded rangeland to productive uses. Different measures are proposed to rehabilitate rangelands that have been degraded by different mechanisms. Reduction in grazing intensity is prescribed to rehabilitate reversibly degraded rangelands. Targeted human intervention in the forms of selective planting of grasses and artificial seeding, in conjunction with ecological and biological control of the plateau rodent population, is recommended to rehabilitate ‘irreversibly’ degraded rangelands. Our studies suggest it is very difficult or even impossible to rehabilitate new assemblage of species which appear as a result of climate change. Copyright © 2011 John Wiley & Sons, Ltd.
294 citations
Authors
Showing all 4460 results
Name | H-index | Papers | Citations |
---|---|---|---|
Bin Wang | 126 | 2226 | 74364 |
Liang Cheng | 116 | 1779 | 65520 |
Kuo Hsiung Lee | 81 | 875 | 29359 |
Shijun Liao | 62 | 233 | 18048 |
Yong Zhang | 61 | 324 | 17883 |
Jinren Ni | 61 | 263 | 12516 |
Wei Wang | 58 | 774 | 15085 |
Ping Xie | 57 | 415 | 12718 |
Yu Liu | 54 | 252 | 11831 |
Ning Li | 51 | 449 | 14228 |
Jinchuan Xing | 48 | 118 | 20479 |
Hong Lin | 46 | 273 | 7335 |
Shengwei Mei | 45 | 428 | 6746 |
Huan Liu | 42 | 145 | 5381 |
Xiaoli Wang | 39 | 184 | 4708 |