Arctic medical research最新文献_第5页

Residents' assessment of a community-based alcohol initiative in the Canadian Arctic. 加拿大北极地区居民对社区酒精倡议的评估。

Arctic medical research Pub Date : 1995-10-01

M Callaway, P Suedfeld

引用次数: 0

Ethical issues in health research among circumpolar indigenous populations. 环极地土著居民健康研究中的伦理问题。

Arctic medical research Pub Date : 1995-07-01

T K Young

引用次数: 0

Influence of a perpetual-daylight Arctic environment on periodicity in human cholesterol synthesis. 北极永久日光环境对人类胆固醇合成周期性的影响。

Arctic medical research Pub Date : 1995-07-01

S Biali, P J Jones, R A Pederson, I Iqbal, P Suedfeld

{"title":"Influence of a perpetual-daylight Arctic environment on periodicity in human cholesterol synthesis.","authors":"S Biali, P J Jones, R A Pederson, I Iqbal, P Suedfeld","doi":"","DOIUrl":"","url":null,"abstract":"To identify factors associated with control of human cholesterol synthesis, periodicity in cholesterogenesis, hormonal levels and food consumption behavior were examined in 5 healthy individuals at the beginning and end of 18 d in a perpetual daylight Arctic environment devoid of time cues. At d 2 (phase I) and d 16 (phase II), cholesterol fractional synthesis rate was determined at 6 h intervals over 30 h as deuterium incorporation into plasma free cholesterol. Total plasma cholesterol, insulin and glucose-dependent insulinotropic polypeptide were also measured at each timepoint. Food intake and sleeping patterns were recorded prior to and during each phase. Cholesterol fractional synthesis rate (FSR) exhibited periodicity in all subjects on each phase, but did not differ between phase I (FSR rate = 0.038 +/- 0.038 pools.d-1) and phase II (FSR rate = 0.037 +/- 0.072 pools.d-1) phases. Phase II FSR period length was associated with both the duration between first and last meals (r2 = 0.81, p = 0.037) and total hours spent awake (r2 = 0.99, p = 0.001). Insulin and glucose-dependent insulinotropic polypeptide levels were not associated with FSR periodicity. These results suggest that meal timing and sleep/wake cycles are more important factors than insulin and glucose-dependent insulinotropic polypeptide in controlling the rhythms of whole body cholesterol synthesis.","PeriodicalId":77012,"journal":{"name":"Arctic medical research","volume":"54 3","pages":"134-44"},"PeriodicalIF":0.0,"publicationDate":"1995-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"18673180","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Arthrosis of the hip and knee: environmental causes in the first year of life? A study of 1405 cases of arthrosis in north Norway 1984-1989. 髋关节和膝关节关节炎:生命第一年的环境原因?1984-1989年挪威北部1405例关节病的研究。

Arctic medical research Pub Date : 1995-07-01

V Fønnebø

引用次数: 0

Factors associated with glycemia and microvascular complications among James Bay Cree Indian diabetics of Quebec. 魁北克詹姆斯湾克里印第安人糖尿病患者的血糖和微血管并发症相关因素

Arctic medical research Pub Date : 1995-07-01

P Brassard, E Robinson

引用次数: 0

Hearing in elementary school children in Nuuk and Sisimiut, Greenland. 格陵兰岛努克和西西缪特小学生的听力。

Arctic medical research Pub Date : 1995-07-01

P Homøe, R B Christensen, P Breatlau

引用次数: 0

Body fat distribution and other cardiac risk factors among circumpolar Inuit and nGanasan. 环极地因纽特人和加纳桑人体内脂肪分布和其他心脏危险因素。

Arctic medical research Pub Date : 1995-07-01

A Rode, R J Shephard

{"title":"Body fat distribution and other cardiac risk factors among circumpolar Inuit and nGanasan.","authors":"A Rode, R J Shephard","doi":"","DOIUrl":"","url":null,"abstract":"Secular trends in skinfold thicknesses and body fat distribution were examined in the adult Inuit of Igloolik, N.W.T. through surveys conducted in 1969/70, 1979/80 and 1989/93. Findings were compared with the nGanasan population of Volochanka (Taimir peninsula, Siberia), who were examined in 1992/3. The skinfold readings of the Inuit have increased over the two decades of observation. Currently, the young male Inuit and nGanasan remain relatively thin, but older Inuit men and the women of both populations are now quite obese relative to subjects from Southern Canada. The male Inuit have also developed a centripetal, coronary-prone pattern of fat distribution, with subscapular/triceps skinfold ratios that now exceed averages for southern Canada. The majority of both Inuit and nGanasan are current smokers and many fail to meet minimal standards of aerobic performance. Plasma cholesterol levels are still not very high, but a substantial proportion of the nGanasan are affected by hypertension; their source of animal protein is reindeer meat rather than the marine mammals eaten in Igloolik. Alcohol consumption is also higher in Volochanka than in Igloolik. Action is needed to control smoking, reduce body fat content and increase physical activity if circumpolar populations are not to experience an epidemic of cardiovascular disease.","PeriodicalId":77012,"journal":{"name":"Arctic medical research","volume":"54 3","pages":"125-33"},"PeriodicalIF":0.0,"publicationDate":"1995-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"18672630","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Mercury, dental amalgam fillings and intellectual abilities in Inuit school children in Greenland. 格陵兰岛因纽特学龄儿童的汞、牙科汞合金填充物和智力。

Arctic medical research Pub Date : 1995-04-01

A V Tulinius

引用次数: 0

Thyroid hormone responses to military winter exercises in the Arctic region. 甲状腺激素对北极地区冬季军事演习的反应。

Arctic medical research Pub Date : 1995-04-01

A C Hackney, J A Hodgdon, R Hesslink, K Trygg

{"title":"Thyroid hormone responses to military winter exercises in the Arctic region.","authors":"A C Hackney, J A Hodgdon, R Hesslink, K Trygg","doi":"","DOIUrl":"","url":null,"abstract":"The effects of military field exercises in the arctic on thyroid hormone concentrations were examined in Norwegian soldiers (n = 35). Originally the soldiers were divided into 4 groups having low (2 h) or high (6 h) levels of daily sleep, and low or high physical work requirements during the field exercises. The operations were three days of stimulated combat scenarios during winter. Day 1 consisted of 30 h without sleep. Sleep was then provided at approximately 18-22 h intervals thereafter. Blood samples were taken immediately prior to the exercises (BASELINE), during the exercises at 24 h, 48 h, and 72 h, and at 24 h and 48 h of recovery from the exercises (REC1, and REC2). Hormonal analysis consisted of total (T) thyroxine (TT4), free (f) T4, total triidothyronine (TT3), fT3, and thyroid stimulating hormone (TSH). No significant group interactions were observed therefore groups were pooled. However, main effects over time (i.e., days) were observed for all hormones (p < 0.001). TSH declined throughout the exercises, as did fT3. TT4, fT4, and TT3 increased in the first 24 to 48 h of the exercises, then progressively declined thought REC1. By REC2, TT4, fT4, and TSH showed trends towards returning to BASELINE levels, although recovery was not complete. The findings from this study demonstrates that thyroid hormone concentrations become reduced with as little as 72 h of military field operations in an arctic winter environment. However, short-term sleep deprivation and differing levels of physical work seem to have no major impact on the magnitude of the hormonal changes.","PeriodicalId":77012,"journal":{"name":"Arctic medical research","volume":"54 2","pages":"82-90"},"PeriodicalIF":0.0,"publicationDate":"1995-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"18646133","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The future of the Nordic Council for Arctic Medical Research. 北欧北极医学研究理事会的未来。

Arctic medical research Pub Date : 1995-04-01

H K Akerblom, M Knip

引用次数: 0