Results 1 to 10 of about 21,476 (202)

Positive selection in the genomes of two Papua New Guinean populations at distinct altitude levels [PDF]

open access: yesNature Communications
Highlanders and lowlanders of Papua New Guinea have faced distinct environmental stress, such as hypoxia and environment-specific pathogen exposure, respectively.
Mathilde André   +19 more
doaj   +2 more sources

Sex differences in genotype frequency and the risk of polycythemia associated with rs13419896 and rs2790859 among Tibetan highlanders living in Tsarang, Mustang, Nepal [PDF]

open access: yesJournal of Physiological Anthropology
Background Tibetan highlanders have adapted to hypoxic environments through genetic mechanisms that avoid hemoglobin concentration increases and prevent polycythemia.
Hiroaki Arima   +8 more
doaj   +2 more sources

Gut microbiome alterations in pulmonary hypertension in highlanders and lowlanders

open access: yesERJ Open Research, 2023
Background Alterations in the gut microbiota have been observed in patients with pulmonary hypertension (PH), though whether the roles of the gut microbiota in PH at different altitudes are the same is unknown.
Wenxue Dong   +14 more
doaj   +1 more source

Pulmonary haemodynamic response to exercise in highlanders versus lowlanders

open access: yesERJ Open Research, 2021
The aim of the study was to investigate the pulmonary haemodynamic response to exercise in Central Asian high- and lowlanders. This was a cross-sectional study in Central Asian highlanders (living >2500 m) compared with lowlanders (living
Silvia Ulrich   +11 more
doaj   +1 more source

Circulating Microparticles Are Differentially Increased in Lowlanders and Highlanders with High Altitude Induced Pulmonary Hypertension during the Cold Season

open access: yesCells, 2022
The role of microparticles (MPs) and cold in high altitude pulmonary hypertension (HAPH) remains unexplored. We investigated the impact of long-term cold exposure on the pulmonary circulation in lowlanders and high-altitude natives and the role of MPs ...
Akylbek Sydykov   +26 more
doaj   +1 more source

Distinguishing feature of gut microbiota in Tibetan highland coronary artery disease patients and its link with diet

open access: yesScientific Reports, 2021
The prevalence of coronary artery disease (CAD) in Tibetan Highlanders is lower than that in plain-living individuals, but the mechanism still unclear. Gut microbiota (GM) disorder is considered one of the potential factors involved in the pathogenesis ...
Yulan Ma   +8 more
doaj   +1 more source

Phenotypic differences between highlanders and lowlanders in Papua New Guinea.

open access: yesPLoS ONE, 2021
ObjectivesAltitude is one of the most demanding environmental pressures for human populations. Highlanders from Asia, America and Africa have been shown to exhibit different biological adaptations, but Oceanian populations remain understudied [Woolcock ...
Mathilde André   +8 more
doaj   +1 more source

Spirometry in Central Asian Lowlanders and Highlanders, a Population Based Study

open access: yesFrontiers in Medicine, 2020
Introduction: The purpose of the study was to establish spirometric reference values for a Central Asian population of highlanders and lowlanders.Methods: Spirometries from a population-based cross-sectional study performed in 2013 in rural areas of ...
Stefanie Ulrich   +8 more
doaj   +1 more source

Unique hemoglobin dynamics in female Tibetan highlanders

open access: yesTropical Medicine and Health, 2021
Background Tibetan highlanders have adapted to hypoxic environments through the development of unique mechanisms that suppress an increase in hemoglobin (Hb) concentration even in high-altitude areas.
Hiroaki Arima   +7 more
doaj   +1 more source

«Those fleeing from the cruelty of the owners should be taken under the protection of…»: prisoners and fugitives on the Kuban border in the 20s of the xix century (according to the State archive of Krasnodar region)

open access: yesГуманитарные и юридические исследования, 2022
The geopolitical realities that developed as a result of the victory of the Russian Empire in the war against Turkey in 1787 – 1791 carried new challenges for St. Petersburg related to the arrangement of the border along the Kuban River.
N. S. Tkalenko
doaj   +1 more source

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