Objective:To study the incidence and risk factors of hyperuricemia in young males who rapid entered into the plateau of 4500 m.Methods:The study contained 390 males aged 18-35 years(21.6±2.5 years),who rapidly en...Objective:To study the incidence and risk factors of hyperuricemia in young males who rapid entered into the plateau of 4500 m.Methods:The study contained 390 males aged 18-35 years(21.6±2.5 years),who rapidly entered the plateau with an altitude of 4500 m.According to their basic level of uric acid(UA),they were divided into two groups,high uric acid(HUA)group and normal uric acid(NUA)group.The characteristics and physiological index,such as the body weight and the height,of them were recorded.For the test of the biochemical indicators,the venous blood samples were collected at the altitude of 4500 m in the morning.The count of blood cells,blood urea nitrogen(BUN),serum creatinine(SCR),lactate dehydrogenase(LDH),total bilirubin(TBIL),direct bilirubin(DBIL)and indirect bilirubin(IDBIL)were compared between the two groups.Results:The incidence of hyperuricemia was 65.1%(254/390)at 4500 m.At the altitude of 4500 m,the mean hemoglobin concentration(MCHC)of red blood cells in the HUA group was significantly lower than that in the NUA group.Hemoglobin(HGB),mean red blood cell volume(MCV),TBIL,IDBIL,BUN,SCR and LDH in the HUA group were significantly higher than those in the NUA group,though without statistically significant differences in the other variables.Meanwhile,multivariate analysis showed at the altitude of 4500 m,the risk of HUA increased by 0.982,1.038 and 1.045 times when MCHC decreased by one unit and TBIL and SCR increased by one unit,respectively.Conclusion:The incidence of hyperuricemia was high of 65.1%rush entry into the plateau of young male.Decreased MCHC and elevated TBIL and SCR were independent risk factors for hyperuricemia when rapid enter into 4500 m.展开更多
Tibet,the only provincial-level impoverished region,is facing great challenges in getting rid of poverty,such as widespread poverty and weak infrastructure.Since 2012,Tibet has launched its "five in one" pro...Tibet,the only provincial-level impoverished region,is facing great challenges in getting rid of poverty,such as widespread poverty and weak infrastructure.Since 2012,Tibet has launched its "five in one" project and has gradually formed a layout for a large poverty-展开更多
Located on the world’s largest plateau, Tibet Autonomous Region in China’s southwest has an average elevation of 4,000 meters. Tibet’s diverse natural landscapes, including snow-capped mountains, vast pastures and ...Located on the world’s largest plateau, Tibet Autonomous Region in China’s southwest has an average elevation of 4,000 meters. Tibet’s diverse natural landscapes, including snow-capped mountains, vast pastures and virgin forests, combined with展开更多
Han Shuli was born in Beijing in 1948 and graduated from the Central Academy of Fine Arts.He has been living and painting in Tibet since 1973 and is now President of the Tibetan Artists’Association.In his work,Han lo...Han Shuli was born in Beijing in 1948 and graduated from the Central Academy of Fine Arts.He has been living and painting in Tibet since 1973 and is now President of the Tibetan Artists’Association.In his work,Han looks to the traditional thangka,using mineral pigments on cloth,to create his own unique展开更多
IN the early 1920s, when Yosif Frantz Rock, an American botanist, traveled to Lugu Lake, he was amazed by its beauty. He said, "It’s the last Place that God creates." Lugu Lake, 2,690 meters above sea level...IN the early 1920s, when Yosif Frantz Rock, an American botanist, traveled to Lugu Lake, he was amazed by its beauty. He said, "It’s the last Place that God creates." Lugu Lake, 2,690 meters above sea level, is situated in Ninglang County, in northwest Yunnan Province. With an area of more than 50 square kilometers, the lake reaches 45 meters deep and is transparent down to 12 meters.展开更多
The Tibetan Plateau has been known for its highest elevation and thickest crust on earth,and become a key region for comprehending the rheology and tectonic evolution of continental plates and associated dynamic proce...The Tibetan Plateau has been known for its highest elevation and thickest crust on earth,and become a key region for comprehending the rheology and tectonic evolution of continental plates and associated dynamic processes.Over the past years,numerous geophysical studies have been conducted to explore the deep structure of the Tibetan Plateau,resulting in significant advancements in understanding the formation and growth of the Plateau.This paper aims to provide a comprehensive summary and discussion of the geophysical observations and underlying mechanisms of the plateau uplift.First,major relevant tectonic models are reviewed,and the corresponding features of crustal structures and related deformation are presented.Then,recent observations,including the identification of a high-velocity layer in the lower crust of the Lhasa block,the spatial distribution of crustal channel flow,and the decoupling of shallow and deep crustal deformation,are synthesized to gain insights into the crustal structures,and multidisciplinary data are integrated to discuss the potential mechanisms of the plateau uplift.Lastly,some pertinent suggestions are put forward for future research on the Tibetan Plateau.展开更多
文摘Objective:To study the incidence and risk factors of hyperuricemia in young males who rapid entered into the plateau of 4500 m.Methods:The study contained 390 males aged 18-35 years(21.6±2.5 years),who rapidly entered the plateau with an altitude of 4500 m.According to their basic level of uric acid(UA),they were divided into two groups,high uric acid(HUA)group and normal uric acid(NUA)group.The characteristics and physiological index,such as the body weight and the height,of them were recorded.For the test of the biochemical indicators,the venous blood samples were collected at the altitude of 4500 m in the morning.The count of blood cells,blood urea nitrogen(BUN),serum creatinine(SCR),lactate dehydrogenase(LDH),total bilirubin(TBIL),direct bilirubin(DBIL)and indirect bilirubin(IDBIL)were compared between the two groups.Results:The incidence of hyperuricemia was 65.1%(254/390)at 4500 m.At the altitude of 4500 m,the mean hemoglobin concentration(MCHC)of red blood cells in the HUA group was significantly lower than that in the NUA group.Hemoglobin(HGB),mean red blood cell volume(MCV),TBIL,IDBIL,BUN,SCR and LDH in the HUA group were significantly higher than those in the NUA group,though without statistically significant differences in the other variables.Meanwhile,multivariate analysis showed at the altitude of 4500 m,the risk of HUA increased by 0.982,1.038 and 1.045 times when MCHC decreased by one unit and TBIL and SCR increased by one unit,respectively.Conclusion:The incidence of hyperuricemia was high of 65.1%rush entry into the plateau of young male.Decreased MCHC and elevated TBIL and SCR were independent risk factors for hyperuricemia when rapid enter into 4500 m.
文摘Tibet,the only provincial-level impoverished region,is facing great challenges in getting rid of poverty,such as widespread poverty and weak infrastructure.Since 2012,Tibet has launched its "five in one" project and has gradually formed a layout for a large poverty-
文摘Located on the world’s largest plateau, Tibet Autonomous Region in China’s southwest has an average elevation of 4,000 meters. Tibet’s diverse natural landscapes, including snow-capped mountains, vast pastures and virgin forests, combined with
文摘Han Shuli was born in Beijing in 1948 and graduated from the Central Academy of Fine Arts.He has been living and painting in Tibet since 1973 and is now President of the Tibetan Artists’Association.In his work,Han looks to the traditional thangka,using mineral pigments on cloth,to create his own unique
文摘IN the early 1920s, when Yosif Frantz Rock, an American botanist, traveled to Lugu Lake, he was amazed by its beauty. He said, "It’s the last Place that God creates." Lugu Lake, 2,690 meters above sea level, is situated in Ninglang County, in northwest Yunnan Province. With an area of more than 50 square kilometers, the lake reaches 45 meters deep and is transparent down to 12 meters.
基金supported by the Supercomputing Laboratory at the Institute of Geology and Geophysics,Chinese Academy of Sciencessupported by the National Natural Science Foundation of China (Grant No.42074067)the Key Research Program of the Institute of Geology and Geophysics,CAS (Grant No.IGGCAS-202204)。
文摘The Tibetan Plateau has been known for its highest elevation and thickest crust on earth,and become a key region for comprehending the rheology and tectonic evolution of continental plates and associated dynamic processes.Over the past years,numerous geophysical studies have been conducted to explore the deep structure of the Tibetan Plateau,resulting in significant advancements in understanding the formation and growth of the Plateau.This paper aims to provide a comprehensive summary and discussion of the geophysical observations and underlying mechanisms of the plateau uplift.First,major relevant tectonic models are reviewed,and the corresponding features of crustal structures and related deformation are presented.Then,recent observations,including the identification of a high-velocity layer in the lower crust of the Lhasa block,the spatial distribution of crustal channel flow,and the decoupling of shallow and deep crustal deformation,are synthesized to gain insights into the crustal structures,and multidisciplinary data are integrated to discuss the potential mechanisms of the plateau uplift.Lastly,some pertinent suggestions are put forward for future research on the Tibetan Plateau.
