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High Altitude Medicine & Biology

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https://www.readbyqxmd.com/read/29131669/research-in-high-altitude-and-mountain-emergency-medicine-is-methodology-key
#1
Hermann Brugger, Matiram Pun, Erik R Swenson, Markus Falk
No abstract text is available yet for this article.
November 13, 2017: High Altitude Medicine & Biology
https://www.readbyqxmd.com/read/29125907/risk-of-type-2-diabetes-mellitus-development-in-the-native-population-of-low-and-high-altitude-regions-of-kyrgyzstan-finnish-diabetes-risc-score-questionnaire-results
#2
Marina S Moldobaeva, Anastasiya V Vinogradova, Marina K Esenamanova
Moldobaeva, Marina S., Anastasiya V. Vinogradova, and Marina K. Esenamanova. Risk of type 2 diabetes mellitus development in the native population of low- and high-altitude regions of Kyrgyzstan: Finnish Diabetes Risc Score questionnaire results. High Alt Med Biol. 00:000-000, 2017. OBJECTIVE: The number of patients with diabetes is steadily growing, but likely only half of all cases are ever identified. The Kyrgyz, native inhabitants of Central Asia, live in the mountainous area and have a particular lifestyle and nutrition...
November 10, 2017: High Altitude Medicine & Biology
https://www.readbyqxmd.com/read/29112466/the-effect-of-inspiratory-resistance-on-exercise-performance-and-perception-in-moderate-normobaric-hypoxia
#3
Yongsuk Seo, Jeremiah Vaughan, Tyler D Quinn, Brittany Followay, Raymond Roberge, Ellen L Glickman, Jung-Hyun Kim
Seo, Yongsuk, Jeremiah Vaughan, Tyler D. Quinn, Brittany Followay, Raymond Roberge, Ellen L. Glickman, and Jung-Hyun Kim. The effect of inspiratory resistance on exercise performance and perception in moderate normobaric hypoxia. High Alt Med Biol. 00:000-000, 2017. PURPOSE: Respirators are simple and efficient in protecting workers against toxic airborne substances; however, their use may limit the physical performance of workers. The purpose of this study was to determine the effect of inspiratory resistance on physical performance and breathing perception in normobaric hypoxia...
November 7, 2017: High Altitude Medicine & Biology
https://www.readbyqxmd.com/read/29077517/therapeutic-efficacy-of-methazolamide-against-intermittent-hypoxia-induced-excessive-erythrocytosis-in-rats
#4
Zhiqing Zhang, Zhonghai Xiao, Bingnan Deng, Xiaohua Liu, Wei Liu, Hongjing Nie, Xi Li, Zhaoli Chen, Danfeng Yang, Ruifeng Duan
Zhang, Zhiqing, Zhonghai Xiao, Bingnan Deng, Xiaohua Liu, Wei Liu, Hongjing Nie, Xi Li, Zhaoli Chen, Danfeng Yang, and Ruifeng Duan. Therapeutic efficacy of methazolamide against intermittent hypoxia-induced excessive erythrocytosis in rats. High Alt Med Biol 00:000-000, 2017.-This study aimed to determine whether methazolamide is effective for the treatment of chronic mountain sickness. Forty-eight male Wistar rats were randomly divided into eight groups: normoxia control, hypoxia control, hypoxia + acetazolamide (30 mg·kg(-1)·d(-1)), and five hypoxia + methazolamide groups (5, 10, 30, 90, and 120 mg·kg(-1)·d(-1))...
October 27, 2017: High Altitude Medicine & Biology
https://www.readbyqxmd.com/read/29064292/psychophysiological-response-and-fine-motor-skills-in-high-altitude-parachute-jumps
#5
Vicente Javier Clemente-Suárez, José Juan Robles-Pérez, Ketty Herrera-Mendoza, Beliña Herrera-Tapias, Jesús Fernández-Lucas
Clemente-Suárez, Vicente Javier, José Juan Robles-Pérez, Ketty Herrera-Mendoza, Beliña Herrera-Tapias, and Jesús Fernández-Lucas. Psychophysiological response and fine motor skills in high-altitude parachute jumps. High Alt Med Biol 00:000-000, 2017.-We analyzed the psychophysiological response and specific fine motor skill of an experienced jumper in HALO (high altitude low opening) and HAHO (high altitude high opening) parachute jumps. Eight HALO and eight HAHO jumpers were analyzed. They jumped at 5500 m, HALO jumpers opened the parachute at 500 m and HAHO jumpers at 4300 m of altitude...
October 24, 2017: High Altitude Medicine & Biology
https://www.readbyqxmd.com/read/29035594/total-body-water-dynamics-estimated-with-bioelectrical-impedance-vector-analysis-and-b-type-natriuretic-peptide-after-exposure-to-hypobaric-hypoxia-a-field-study
#6
Giacomo Strapazzon, Matiram Pun, Tomas Dal Cappello, Emily Procter, Piergiorgio Lochner, Hermann Brugger, Antonio Piccoli
Strapazzon, Giacomo, Matiram Pun, Tomas Dal Cappello, Emily Procter, Piergiorgio Lochner, Hermann Brugger, and Antonio Piccoli. Total body water dynamics estimated with bioelectrical impedance vector analysis and B-type natriuretic peptide after exposure to hypobaric hypoxia: A field study. High Alt Med Biol. 18:000-000, 2017.-The relationship between total body water (TBW) dynamics and N-terminal pro-B-type natriuretic peptide (NT-proBNP), a stable metabolite of B-type natriuretic peptide, during acute high altitude exposure is not known...
October 16, 2017: High Altitude Medicine & Biology
https://www.readbyqxmd.com/read/29035586/hemoconcentration-during-maximum-exercise-in-miners-with-chronic-intermittent-exposure-to-hypobaric-hypoxia-3800%C3%A2-m
#7
Fernando A Moraga, Jorge Osorio, Rodrigo Calderón-Jofré, Andrés Pedreros
Moraga, Fernando A., Jorge Osorio, Rodrigo Calderón-Jofré, and Andrés Pedreros. Hemoconcentration during maximum exercise in miners with chronic intermittent exposure to hypobaric hypoxia (3800 m). High Alt Med Biol. 16:000-000, 2017. OBJECTIVE: To evaluate the effect of maximum exercise on hemoconcentration in miners with chronic intermittent hypobaric hypoxia (CIHH) at 3800 m. MATERIALS AND METHODS: Sixteen miners with CIHH at high altitude (3800 m) were subjected to maximum exercise levels on a cycle ergometer, increasing exercise load by 50 W every 3 minutes at sea level and high altitude (3800 m)...
October 16, 2017: High Altitude Medicine & Biology
https://www.readbyqxmd.com/read/28981369/the-elusive-path-of-brain-tissue-oxygenation-and-cerebral-perfusion-in-harness-hang-syncope-in-mountain-climbers
#8
Francesca Lanfranconi, Luca Pollastri, Giovanni Corna, Manuela Bartesaghi, Massimiliano Novarina, Alessandra Ferri, Giuseppe Andrea Miserocchi
Lanfranconi, Francesca, Luca Pollastri, Giovanni Corna, Manuela Bartesaghi, Massimiliano Novarina, Alessandra Ferri, and Giuseppe Andrea Miserocchi. The elusive path of brain tissue oxygenation and cerebral perfusion in harness hang syncope in mountain climbers. High Alt Med Biol. 18:000-000, 2017. AIM: Harness hang syncope (HHS) is a risk that specifically affects wide ranges of situations requiring safety harnesses in mountains. An irreversible orthostatic stasis could lead to death if a prompt rescue is not performed...
October 5, 2017: High Altitude Medicine & Biology
https://www.readbyqxmd.com/read/28968162/severe-hypothermia-management-in-mountain-rescue-a-survey-study
#9
Paweł Podsiadło, Tomasz Darocha, Sylweriusz Kosiński, Kinga Sałapa, Mirosław Ziętkiewicz, Tomasz Sanak, Rachel Turner, Hermann Brugger
Podsiadło, Paweł, Tomasz Darocha, Sylweriusz Kosiński, Kinga Sałapa, Mirosław Ziętkiewicz, Tomasz Sanak, Rachel Turner, and Hermann Brugger. Severe hypothermia management in mountain rescue: a survey study. High Alt Med Biol 00:000-000, 2017. INTRODUCTION: Severe hypothermia is a rare but demanding medical emergency. Although mortality is high, if well managed, the neurological outcome of survivors can be excellent. The aim of the study was to assess whether mountain rescue teams (MRTs) are able to meet the guidelines in the management of severe hypothermia, regarding their equipment and procedures...
October 2, 2017: High Altitude Medicine & Biology
https://www.readbyqxmd.com/read/28953422/indications-and-outcomes-of-helicopter-rescue-missions-in-alpine-mountain-huts-a-retrospective-study
#10
Mathieu Pasquier, Louis Marxer, Hervé Duplain, Vincent Frochaux, Florence Selz, Pierre Métrailler, Grégoire Zen Ruffinen, Olivier Hugli
Pasquier, Mathieu, Louis Marxer, Hervé Duplain, Vincent Frochaux, Florence Selz, Pierre Métrailler, Grégoire Zen Ruffinen, and Olivier Hugli. Indications and outcomes of helicopter rescue missions in alpine mountain huts: a retrospective study. High Alt Med Biol 00:000-000, 2017. AIMS: This retrospective study describes the rescue indications and outcome of patients rescued by helicopter from mountain huts in the Swiss Alps. The hospital course and operational data were also studied...
September 27, 2017: High Altitude Medicine & Biology
https://www.readbyqxmd.com/read/28949829/performance-mood-and-anxiety-during-a-climb-of-mount-everest
#11
Heikki M Karinen, Martti T Tuomisto
Karinen, Heikki M., and Martti T. Tuomisto. Performance, mood, and anxiety during a climb of Mount Everest. High Alt Med Biol. 16:000-000, 2017. BACKGROUND: Various studies have shown the deleterious effects of high-altitude hypoxia on visual, motor, somatosensory, cognitive, and emotional function and also in intelligence tests, reaction time, speech comprehension, hand steadiness, visual contrast discrimination, and word association tests. Because optimal cognitive abilities may be crucial for mountain climbers' safety, this study was intended to evaluate the changes in cognitive performance, mood, and anxiety during an Everest expedition lasting almost 3 months...
September 26, 2017: High Altitude Medicine & Biology
https://www.readbyqxmd.com/read/28945137/exercise-capacity-of-amateur-mountain-runners-and-ski-mountaineers
#12
Johannes Burtscher, Hannes Gatterer, Martin Faulhaber, Martin Burtscher
No abstract text is available yet for this article.
September 25, 2017: High Altitude Medicine & Biology
https://www.readbyqxmd.com/read/28910201/reentry-high-altitude-pulmonary-edema-in-the-himalayas
#13
Santosh Baniya, Christopher Holden, Buddha Basnyat
Baniya, Santosh, Christopher Holden, and Buddha Basnyat. Reentry high altitude pulmonary edema in the Himalayas. High Alt Med Biol. 16:000-000, 2017.-Reentry high altitude pulmonary edema (HAPE), a subset of HAPE, is a well recognized, life-threatening illness documented almost exclusively in the North and South Americans, who live at high altitude (>2500 m) and return to their homes after a brief sojourn of days to months at lower altitude. This phenomenon has not been reported in Sherpas or other people of Tibetan origin in Nepal or India...
September 14, 2017: High Altitude Medicine & Biology
https://www.readbyqxmd.com/read/28876128/influence-of-inhaled-amiloride-on-lung-fluid-clearance-in-response-to-normobaric-hypoxia-in-healthy-individuals
#14
Courtney M Wheatley, Sarah E Baker, Bryan J Taylor, Manda L Keller-Ross, Steven C Chase, Alex R Carlson, Robert J Wentz, Eric M Snyder, Bruce D Johnson
Wheatley, Courtney M., Sarah E. Baker, Bryan J. Taylor, Manda L. Keller-Ross, Steven C. Chase, Alex R. Carlson, Robert J. Wentz, Eric M. Snyder, and Bruce D. Johnson. Influence of inhaled amiloride on lung fluid clearance in response to normobaric hypoxia in healthy individuals. High Alt Med Biol 00:000-000, 2017. AIM: To investigate the role of epithelial sodium channels (ENaC) on lung fluid clearance in response to normobaric hypoxia, 20 healthy subjects were exposed to 15 hours of hypoxia (fraction of inspired oxygen [FiO2] = 12...
September 6, 2017: High Altitude Medicine & Biology
https://www.readbyqxmd.com/read/28846046/the-use-of-simulated-altitude-techniques-for-beneficial-cardiovascular-health-outcomes-in-nonathletic-sedentary-and-clinical-populations-a-literature-review
#15
Catherine A Lizamore, Michael J Hamlin
Lizamore, Catherine A., and Michael J. Hamlin. The use of simulated altitude techniques for beneficial cardiovascular health outcomes in nonathletic, sedentary, and clinical populations: A literature review. High Alt Med Biol 00:000-000, 2017. BACKGROUND: The reportedly beneficial improvements in an athlete's physical performance following altitude training may have merit for individuals struggling to meet physical activity guidelines. AIM: To review the effectiveness of simulated altitude training methodologies at improving cardiovascular health in sedentary and clinical cohorts...
August 28, 2017: High Altitude Medicine & Biology
https://www.readbyqxmd.com/read/28846044/red-maca-lepidium-meyenii-a-plant-from-the-peruvian-highlands-promotes-skin-wound-healing-at-sea-level-and-at-high-altitude-in-adult-male-mice
#16
Denisse Nuñez, Paola Olavegoya, Gustavo F Gonzales, Cynthia Gonzales-Castañeda
Nuñez, Denisse, Paola Olavegoya, Gustavo F. Gonzales, and Cynthia Gonzales-Castañeda. Red maca (Lepidium meyenii), a plant from the Peruvian highlands, promotes skin wound healing at sea level and at high altitude in adult male mice. High Alt Med Biol 00:000-000, 2015.-Wound healing consists of three simultaneous phases: inflammation, proliferation, and remodeling. Previous studies suggest that there is a delay in the healing process in high altitude, mainly due to alterations in the inflammatory phase. Maca (Lepidium meyenii) is a Peruvian plant with diverse biological properties, such as the ability to protect the skin from inflammatory lesions caused by ultraviolet radiation, as well as its antioxidant and immunomodulatory properties...
August 28, 2017: High Altitude Medicine & Biology
https://www.readbyqxmd.com/read/28876136/electron-microscopy-observation-of-human-pulmonary-ultrastructure-in-two-patients-with-high-altitude-pulmonary-edema
#17
Yunden Droma, Akane Kato, Takashi Ichiyama, Nobumitsu Kobayashi, Takayuki Honda, Takeshi Uehara, Masayuki Hanaoka
We examined the pulmonary ultrastructure in tissue from two patients with high-altitude pulmonary edema (HAPE) by electron microscopy. In one case, we found that neutrophils were trapped in pulmonary capillary lumen of alveolar-capillary wall and part of the cytoplasm of a neutrophil protruded and adhered to the capillary endothelium. There were several degranulated vacuoles in the cytoplasm of the neutrophil. The pulmonary capillary wall was deformed, thickened, and swollen and there was evidence of degeneration...
September 2017: High Altitude Medicine & Biology
https://www.readbyqxmd.com/read/28876129/relationship-between-occupational-physical-activity-and-subclinical-vascular-damage-in-moderate-altitude-dwellers
#18
Kristian Ujka, Rosa Maria Bruno, Luca Bastiani, Eva Bernardi, Paolo Sdringola, Nenad Dikic, Bikash Basyal, Sanjeeb Sundarshan Bhandari, Buddha Basnyat, Annalisa Cogo, Lorenza Pratali
Ujka, Kristian, Rosa Maria Bruno, Luca Bastiani, Eva Bernardi, Paolo Sdringola, Nenad Dikic, Bikash Basyal, Sanjeeb Sundarshan Bhandari, Buddha Basnyat, Annalisa Cogo, and Lorenza Pratali. Relationship between occupational physical activity and subclinical vascular damage in moderate-altitude dwellers. High Alt Med Biol. 18:249-257, 2017. BACKGROUND: Occupational physical activity (OPA) has been associated with increased cardiovascular (CV) events. The aim of this study was to investigate the association between OPA and markers of subclinical vascular damage among a moderate-altitude population living in the rural village of Chaurikharka (Nepal; 2600 m sea level)...
September 2017: High Altitude Medicine & Biology
https://www.readbyqxmd.com/read/28850251/systemic-hypoxia-increases-circulating-concentration-of-apelin-in-humans
#19
Ilkka Heinonen, Olli Vuolteenaho, Juha Koskenvuo, Olli Arjamaa, Mikko Nikinmaa
Heinonen, Ilkka, Olli Vuolteenaho, Juha Koskenvuo, Olli Arjamaa, and Mikko Nikinmaa. Systemic hypoxia increases circulating concentration of apelin in humans. High Alt Med Biol. 18:292-295, 2017. BACKGROUND: Apelin is a hormone that regulates cardiovascular function, and its concentration is increased by hypoxia based on cell culture and animal studies. As it remains unknown as to whether hypoxia could affect apelin levels in humans, we investigated whether breathing normobaric hypoxic gas mixture increases the circulating apelin concentration in healthy male subjects...
September 2017: High Altitude Medicine & Biology
https://www.readbyqxmd.com/read/28846035/high-altitude-pulmonary-edema-in-mountain-community-residents
#20
Christine Ebert-Santos
Ebert-Santos, Christine. High-altitude pulmonary edema in mountain community residents. High Alt Med Biol. 18:278-284, 2017.-High-altitude pulmonary edema (HAPE) affects lowlanders ascending quickly to elevations above 2440 m. Mountain resident children with no travel can sometimes develop HAPE as was observed over 30 years ago (Fasules et al., 1985). This is not well known and children instead are diagnosed as having pneumonia or asthma. In our clinic at 2800 m, we see children presenting with severe hypoxemia, clinical, and radiographic findings consistent with HAPE despite no recent travel...
September 2017: High Altitude Medicine & Biology
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