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[4th International Symposium on arctic medicine]

https://arctichealth.org/en/permalink/ahliterature4380
Source
Gig Tr Prof Zabol. 1979 Feb;(2):60
Publication Type
Conference/Meeting Material
Date
Feb-1979

Acclimation of a non-indigenous sub-Arctic population: seasonal variation in thyroid function in interior Alaska.

https://arctichealth.org/en/permalink/ahliterature214965
Source
Comp Biochem Physiol A Physiol. 1995 Jun;111(2):209-14
Publication Type
Article
Date
Jun-1995
Author
M. Levine
L. Duffy
D C Moore
L A Matej
Author Affiliation
Department of Psychiatry, Brooke Army Medical Center, Fort Sam Houston, TX 78234, USA.
Source
Comp Biochem Physiol A Physiol. 1995 Jun;111(2):209-14
Date
Jun-1995
Language
English
Publication Type
Article
Keywords
Acclimatization - physiology
Adolescent
Adult
Alaska - ethnology
Arctic regions - ethnology
Body Weight
Humans
Male
Military Personnel
Pineal Gland - physiology
Seasons
Thyroid Gland - physiology
Thyroxine - blood
Triiodothyronine - blood
Weight Gain
Abstract
Total, as well as free, T4 and T3 levels were obtained over four seasons for young male infantry soldiers assigned to interior Alaska. Significant seasonal variations were found in both T3 and T4. Total T4 and T3 levels were highest in winter, while free T4 and T3 levels were highest in early spring. Correlations with melatonin levels from a concurrent study showed an association between late day (17.00) mean spot melatonin levels during the preceding summer and T3 levels in winter and spring. Differences in seasonal T4 and T3 levels between indigenous and newly arrived people in the sub-Arctic may be related not only to cold acclimation but also to light.
PubMed ID
7788348 View in PubMed
Less detail

Acclimation of Swedish and Italian ecotypes of Arabidopsis thaliana to light intensity.

https://arctichealth.org/en/permalink/ahliterature292238
Source
Photosynth Res. 2017 Nov; 134(2):215-229
Publication Type
Journal Article
Date
Nov-2017
Author
Jared J Stewart
Stephanie K Polutchko
William W Adams
Barbara Demmig-Adams
Author Affiliation
Department of Ecology and Evolutionary Biology, University of Colorado, Boulder, CO, 80309-0334, USA.
Source
Photosynth Res. 2017 Nov; 134(2):215-229
Date
Nov-2017
Language
English
Publication Type
Journal Article
Keywords
Acclimatization
Arabidopsis - anatomy & histology - classification - physiology
Carbon Dioxide - metabolism
Italy
Light
Photosynthesis - physiology - radiation effects
Plant Leaves - anatomy & histology - physiology - radiation effects
Sweden
Abstract
This study addressed whether ecotypes of Arabidopsis thaliana from Sweden and Italy exhibited differences in foliar acclimation to high versus low growth light intensity, and compared CO2 uptake under growth conditions with light- and CO2-saturated intrinsic photosynthetic capacity and leaf morphological and vascular features. Differential responses between ecotypes occurred mainly at the scale of leaf architecture, with thicker leaves with higher intrinsic photosynthetic capacities and chlorophyll contents per leaf area, but no difference in photosynthetic capacity on a chlorophyll basis, in high light-grown leaves of the Swedish versus the Italian ecotype. Greater intrinsic photosynthetic capacity per leaf area in the Swedish ecotype was accompanied by a greater capacity of vascular infrastructure for sugar and water transport, but this was not associated with greater CO2 uptake rates under growth conditions. The Swedish ecotype with its thick leaves is thus constructed for high intrinsic photosynthetic and vascular flux capacity even under growth chamber conditions that may not permit full utilization of this potential. Conversely, the Swedish ecotype was less tolerant of low growth light intensity than the Italian ecotype, with smaller rosette areas and lesser aboveground biomass accumulation in low light-grown plants. Foliar vein density and stomatal density were both enhanced by high growth light intensity with no significant difference between ecotypes, and the ratio of water to sugar conduits was also similar between the two ecotypes during light acclimation. These findings add to the understanding of the foliar vasculature's role in plant photosynthetic acclimation and adaptation.
Notes
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PubMed ID
28861679 View in PubMed
Less detail

[Acclimatization and clinical peculiarities of some internal diseases in the Arctic].

https://arctichealth.org/en/permalink/ahliterature110106
Source
Klin Med (Mosk). 1969 May;47(5):10-3
Publication Type
Article
Date
May-1969

[Acclimatization of man in the Polar regions].

https://arctichealth.org/en/permalink/ahliterature248107
Source
Voen Med Zh. 1978 Nov;(11):92-3
Publication Type
Article
Date
Nov-1978
Author
N I Bobrov
V P Tikhomirov
O P Lomov
Source
Voen Med Zh. 1978 Nov;(11):92-3
Date
Nov-1978
Language
Russian
Publication Type
Article
Keywords
Acclimatization
Antarctic Regions
Arctic Regions
Cold Climate
Humans
Siberia
PubMed ID
734949 View in PubMed
Less detail

Acclimatization to cold in man induced by frequent scuba diving in cold water.

https://arctichealth.org/en/permalink/ahliterature293858
Source
Journal of Applied Physiology. 1968 Feb;24(2):177-81.
Publication Type
Article
Date
1968
Source
American Journal of Physiology. 1947 Jul 1; 150(1):99-108.
Publication Type
Article
Date
1947
Author
Horvath, S.M.
Freedman, A.
Golden, H.
Source
American Journal of Physiology. 1947 Jul 1; 150(1):99-108.
Date
1947
Language
English
Publication Type
Article
Keywords
Acclimatization
Cold Temperature
Extreme Cold
Humans
PubMed ID
20252832 View in PubMed
Less detail
Source
Journal of Physiology. 1949 Dec;110(3-4):330-7.
Publication Type
Article
Date
1949
Author
Glaser, E.M.
Source
Journal of Physiology. 1949 Dec;110(3-4):330-7.
Date
1949
Language
English
Publication Type
Article
Keywords
Acclimatization
Cold Temperature
Hot Temperature
Humans
PubMed ID
15406433 View in PubMed
Less detail

Activation of flavonoid biosynthesis by solar radiation in bilberry ( Vaccinium myrtillus L) leaves.

https://arctichealth.org/en/permalink/ahliterature9570
Source
Planta. 2004 Mar;218(5):721-8
Publication Type
Article
Date
Mar-2004
Author
Laura Jaakola
Kaisu Määttä-Riihinen
Sirpa Kärenlampi
Anja Hohtola
Author Affiliation
Department of Biology/Botany, University of Oulu, POB 3000, 90014, Oulu, Finland. laura.jaakola@oulu.fi
Source
Planta. 2004 Mar;218(5):721-8
Date
Mar-2004
Language
English
Publication Type
Article
Keywords
Acclimatization - physiology - radiation effects
Acyltransferases - genetics - metabolism
Alcohol Oxidoreductases - genetics - metabolism
Flavonoids - biosynthesis - radiation effects
Fruit - metabolism - radiation effects
Gene Expression Regulation, Enzymologic - radiation effects
Gene Expression Regulation, Plant - radiation effects
Mixed Function Oxygenases - genetics - metabolism
Oxygenases - genetics - metabolism
Phenylalanine Ammonia-Lyase - genetics - metabolism
Plant Leaves - metabolism - radiation effects
Research Support, Non-U.S. Gov't
Sunlight
Vaccinium myrtillus - genetics - metabolism - radiation effects
Abstract
The effect of solar radiation on flavonoid biosynthesis was studied in bilberry ( Vaccinium myrtillus L.) leaves. Expression of flavonoid pathway genes of bilberry was studied in the upper leaves of bilberry, exposed to direct sunlight, in the shaded leaves growing lower in the same plants and in fruits. Bilberry-specific digoxigenin-dUTP-labeled cDNA fragments of five genes from the general phenylpropanoid pathway coding phenylalanine ammonia-lyase and from the flavonoid pathway coding chalcone synthase, flavanone 3-hydroxylase, dihydroflavonol 4-reductase, and anthocyanidin synthase were used as probes in gene expression analysis. Anthocyanins, catechins, proanthocyanidins, flavonols and hydroxycinnamic acids from the leaves and fruits were identified and quantified using high-performance liquid chromatography combined with a diode array detector. An increase in the expression of the studied flavonoid pathway genes was observed in leaves growing under direct sun exposure. Also, the concentrations of anthocyanins, catechins, flavonols and hydroxycinnamic acids were higher in the leaves exposed to direct sunlight. However, the concentration of polymeric procyanidins was lower in sun-exposed leaves, whereas that of prodelphinidins was slightly increased. The results give further support for the protective role of flavonoids and hydroxy cinnamic acids against high solar radiation in plants. Also, the roles of different flavonoid compounds as a defense against stress caused by sun exposure is discussed.
PubMed ID
14666422 View in PubMed
Less detail

[Adaptation of children to the climate of the polar region and its effect]

https://arctichealth.org/en/permalink/ahliterature43221
Source
Pediatriia. 1973 Oct;52(10):68-9
Publication Type
Article
Date
Oct-1973
Author
T N Saribekova
Source
Pediatriia. 1973 Oct;52(10):68-9
Date
Oct-1973
Language
Russian
Publication Type
Article
Keywords
Acclimatization
Adaptation, Physiological
Child
Cold Climate
Humans
USSR
Urban Population
PubMed ID
4786407 View in PubMed
Less detail

333 records – page 1 of 34.