Abstract:
OBJECTIVES:We set out to find out in which way seasonal changes of environmental luminosity could affect melatonin secretion in humans. STUDY DESIGN:For an entire year we collected every two months nocturnal urine samples from 20 male outdoor workers who lived and worked in an area of the circumpolar region from which exact data solar irradiance and temperature were available. METHODS:Melatonin secretion rates were assessed with our melatonin-specific radioimmunoassay. RESULTS:Melatonin secretion was twice as high in December as in April, 0.88 +/- 16 nmol/12 h (mean +/- SE) vs. 0.43 +/- 9 nmol/12 h, p < 0.05. Regression analyses showed that melatonin values best correlated inversely with weeks before the urine samplings were collected was associated with a ca. 50% reduction in melatonin secretion. The association with global irradiance was weaker and none existed with temperature or other environmental variables. DISCUSSION:Light reaching the eyes via the snow or other reflecting involved in certain biological phenomena that exhibit seasonal variations such as reproductive and self-destructive behaviours.
journal_name
Int J Circumpolar Healthjournal_title
International journal of circumpolar healthauthors
Leppäluoto J,Sikkilä K,Meyer-Rochow VB,Hassi Jdoi
10.3402/ijch.v63i0.17888subject
Has Abstractpub_date
2004-01-01 00:00:00pages
161-3eissn
1239-9736issn
2242-3982journal_volume
63 Suppl 2pub_type
杂志文章abstract::Subsistence food preparations may lead to human illnesses caused by pathogenic bacteria and viruses. Little is known about the incidence of food-borne illnesses other than botulism in circumpolar indigenous populations. Lack of documentation for other pathogens may be related to the sparsely populated communities invo...
journal_title:International journal of circumpolar health
pub_type: 杂志文章,评审
doi:
更新日期:1998-01-01 00:00:00
abstract:OBJECTIVES:To compare European (ECSC) and Finnish reference values for single-breath diffusing capacity for carbon monoxide (DL(CO)). STUDY DESIGN:Finnish reference values for DL(CO), specific diffusing capacity (DL(CO)/VA) and total lung capacity (TLC) were compared with ECSC reference values calculated for different...
journal_title:International journal of circumpolar health
pub_type: 杂志文章
doi:10.3402/ijch.v66i5.18316
更新日期:2007-12-01 00:00:00
abstract::The goal of this cross-sectional qualitative study was to assess the impact of climate change on Sámi youth health, health care access, and health-seeking behaviour. Indigenous research methodology served as the basis of the investigation which utilised focus groups of youths and one-on-one interviews of adult communi...
journal_title:International journal of circumpolar health
pub_type: 杂志文章
doi:10.1080/22423982.2018.1454785
更新日期:2018-12-01 00:00:00
abstract::The Eeyouch are a First Nations (Cree) population that live above 49.6°N latitude in Eeyou Istchee in northern Quebec. Eeyouch rely on traditional foods (TF) hunted, fished or gathered from the land. The overarching aim of this study was to achieve an understanding of the factors associated with TF intake among Eeyouc...
journal_title:International journal of circumpolar health
pub_type: 杂志文章
doi:10.1080/22423982.2018.1536251
更新日期:2018-12-01 00:00:00
abstract:OBJECTIVES:The first aim was to study how oral health care delivery was organized in member countries and to determine whether there were differences across the Barents region. The second aim was to assess the performance of the care provision systems. The Barents region is one of the largest hinterlands in northern Eu...
journal_title:International journal of circumpolar health
pub_type: 杂志文章
doi:10.3402/ijch.v69i5.17693
更新日期:2010-12-01 00:00:00
abstract:UNLABELLED:In an eight years period new peptic ulcer was diagnosed in 127 Inuit patients at the Central Hospital, Dronning Ingrids Hospital, Nuuk/Godthåb. The ratios: duodenal ulcers (DU): prepyloric ulcers (PPU): gastric ulcers (GU) were 17:22:88. The male:female ratio was 2:1. 46 of the patients were living permanent...
journal_title:International journal of circumpolar health
pub_type: 杂志文章
doi:
更新日期:1997-07-01 00:00:00
abstract:OBJECTIVES:To test the hypothesis that the unexpectedly low prevalence of winter depression in Iceland is explained by Icelanders enjoying more daylight, during the winter months, than allocated to them by latitude. METHODS:A conventional photometer was applied to measure illuminance on a horizontal surface at 64 degr...
journal_title:International journal of circumpolar health
pub_type: 杂志文章
doi:10.3402/ijch.v63i3.17736
更新日期:2004-09-01 00:00:00
abstract:STUDY OBJECTIVE:To survey snowmobile injury events treated in Longyearbyen hospital, Svalbard and to report the injury distribution and characteristics for Svalbard residents and visitors driving snowmobiles. DESIGN:Prospective injury recording. SETTING:The Norwegian arctic archipelago, Svalbard during three years fr...
journal_title:International journal of circumpolar health
pub_type: 杂志文章
doi:
更新日期:2001-11-01 00:00:00
abstract:OBJECTIVES:The aim of the study was to describe adherence to health regimens and the factors associated with it among adult frequent attenders (FAs). DESIGN:This was a cross-sectional study. The study sample consisted of 462 healthcare FAs in 7 municipal health centres in northern Finland. An FA is a person who has ha...
journal_title:International journal of circumpolar health
pub_type: 杂志文章
doi:10.3402/ijch.v75.30726
更新日期:2016-03-18 00:00:00
abstract:BACKGROUND:In preparation for the initial offering of the University of Alaska Fairbanks (UAF), Interior-Aleutians Campus Rural Nutrition Services (RNS) program, a literature review was conducted to establish the need for the proposed program and to substantiate the methodology for delivering integrated, culturally tai...
journal_title:International journal of circumpolar health
pub_type: 杂志文章,评审
doi:10.3402/ijch.v72i0.21144
更新日期:2013-08-05 00:00:00
abstract:OBJECTIVE:To evaluate the rate and causes of preterm (before 37 weeks gestation) and very preterm (before 32 weeks gestation) delivery among a population of Inuit living in Canada. STUDY DESIGN:Three-year retrospective cross-sectional review of charts for patients delivering in the Baffin Region of Canada. RESULTS:Th...
journal_title:International journal of circumpolar health
pub_type: 杂志文章
doi:10.3402/ijch.v63i0.17910
更新日期:2004-01-01 00:00:00
abstract::The relationship between cell-mediated immunity and alcohol intake was studied in an Antarctic wintering group. Cell-mediated immune responses have previously been shown to be significantly lowered on the Antarctic Continent. The cause for this is yet to be elucidated. The cutaneous CMI Multitest was used to assess ce...
journal_title:International journal of circumpolar health
pub_type: 杂志文章
doi:10.3402/ijch.v61i3.17454
更新日期:2002-08-01 00:00:00
abstract:OBJECTIVES:To evaluate NicAlert immunoassay test strips and liquid chromatography atmospheric-pressure ionization tandem mass spectrometry (LC/MS/MS) for the measurement of saliva cotinine levels in pregnant Alaska Native women. STUDY DESIGN:Cross-sectional study. METHODS:Pregnant women completed a questionnaire abou...
journal_title:International journal of circumpolar health
pub_type: 杂志文章
doi:
更新日期:2007-01-01 00:00:00
abstract::In this article we review the thirty-year-old person from the viewpoint of the development psychology, life span, physical health and family life. In his psychological development a person has at this stage become adult, but he still uses some psychic mechanisms and coping strategies which are typical for the adolesce...
journal_title:International journal of circumpolar health
pub_type: 杂志文章,评审
doi:
更新日期:1998-07-01 00:00:00
abstract::Problems with alcohol, marijuana and gambling are major public health challenges in Greenland but their prevalence in a hospital setting has not been explored. Healthcare facilities play a significant role in Greenland. One important aspect is their provision of both primary and secondary healthcare services to a smal...
journal_title:International journal of circumpolar health
pub_type: 杂志文章
doi:10.1080/22423982.2020.1771950
更新日期:2020-01-01 00:00:00
abstract:BACKGROUND:Primary care in remote communities in northern Canada is delivered primarily by nurses who receive clinical support from physicians in regional centres and the patient transportation system. To improve continuity, quality and access to care in remote northern communities, it is important to understand the pe...
journal_title:International journal of circumpolar health
pub_type: 杂志文章
doi:10.3402/ijch.v75.32159
更新日期:2016-09-14 00:00:00
abstract:OBJECTIVES:This article is part of an ethnographic study that aims to describe and understand health as a phenomenon of the Sami culture. STUDY DESIGN:The article is based on literature concerning the northern environment and the Sami culture, which is analysed from the point of view of health culture. RESULTS:From t...
journal_title:International journal of circumpolar health
pub_type: 杂志文章
doi:10.3402/ijch.v62i2.17556
更新日期:2003-05-01 00:00:00
abstract:BACKGROUND:Serum thyroid hormones, plasma catecholamines and mood were examined in 10 male members of the 16th Chinese Antarctic Expedition who spent the 2000 austral winter at Great Wall Station. STUDY DESIGN:Samples were taken prior to deployment to Antarctica (December, 1999) and upon return to China 54 weeks later...
journal_title:International journal of circumpolar health
pub_type: 杂志文章
doi:10.3402/ijch.v62i3.17562
更新日期:2003-09-01 00:00:00
abstract::Various types of system reactions of men's organism to industrial migrations (Tyumen--in latitude 57 degrees north and Kharasavey in latitude 71 degrees north) and the influence of climate stress are determined. Type I reaction is characterised by a moderate increase of the watch and its subsequent normalisation. Thus...
journal_title:International journal of circumpolar health
pub_type: 杂志文章
doi:
更新日期:2001-11-01 00:00:00
abstract:OBJECTIVES:To understand the knowledge levels, attitudes and perceptions of Alaska Native adolescent girls about cervical cancer, HPV, genital warts and the HPV vaccine. STUDY DESIGN:A qualitative study. METHODS:Seventy-nine in-depth interviews were conducted with adolescent females aged 11 through 18 years in 4 comm...
journal_title:International journal of circumpolar health
pub_type: 杂志文章
doi:10.3402/ijch.v70i3.17829
更新日期:2011-06-01 00:00:00
abstract::The purpose of this study is to review the current literatures on breast cancer (BC) in the Arctic, especially the trends in incidence during the last decades and the possible explanations. The design of this study is a literature review. The scientific literature concerning BC were reviewed, especially focusing on th...
journal_title:International journal of circumpolar health
pub_type: 杂志文章,评审
doi:10.3402/ijch.v71i0.19155
更新日期:2012-08-16 00:00:00
abstract::Anglican Church of Canada burial records from 1851-1964 for the Moose Factory First Nation are analysed for mortality seasonality. The 113-year study period is subdivided into three death cohorts (1851-1906, 1914-1945 and 1946-1964) that broadly reflect the late 19th century, early 20th century, and the post-WWII peri...
journal_title:International journal of circumpolar health
pub_type: 历史文章,杂志文章
doi:
更新日期:1997-10-01 00:00:00
abstract:OBJECTIVES:To review the current status of health care access and utilization among Indigenous people in the North America, Australia and New Zealand. STUDY DESIGN:Literature review. METHODS:A systematic search and critical review of relevant studies using online searches of electronic databases (PubMed, PsychINFO, M...
journal_title:International journal of circumpolar health
pub_type: 杂志文章,评审
doi:10.3402/ijch.v66i3.18254
更新日期:2007-06-01 00:00:00
abstract:OBJECTIVES:Experiences in one's family of origin, especially the relationship to one's parents, supposedly form the basis of relationships in adulthood. The connection between traumatic childhood events and later life has been studied intensively, whereas average childhood growth experiences have been given less attent...
journal_title:International journal of circumpolar health
pub_type: 杂志文章
doi:10.3402/ijch.v70i2.17805
更新日期:2011-04-01 00:00:00
abstract:BACKGROUND:Rickets was first described in the 17th century and vitamin D deficiency was recognized as the underlying cause in the early 1900s. Despite this long history, vitamin D deficiency remains a significant health concern. Currently, vitamin D supplementation is recommended in Canada for breast fed infants. There...
journal_title:International journal of circumpolar health
pub_type: 杂志文章
doi:10.3402/ijch.v72i0.20244
更新日期:2013-04-16 00:00:00
abstract:OBJECTIVES:To estimate the age- and gender-specific consultation rates of patients who availed primary health care service in Greenland and to analyse contact patterns among patients in Nuuk. DESIGN:Observational and cross-sectional register study using data captured from the medical records. MATERIALS AND METHODS:Th...
journal_title:International journal of circumpolar health
pub_type: 杂志文章
doi:10.3402/ijch.v71i0.18431
更新日期:2012-07-24 00:00:00
abstract:OBJECTIVE:To assess changes in plasma 25-hydroxy vitamin D (25(OH)D) concentrations after ingestion of
journal_title:International journal of circumpolar health
pub_type: 临床试验,杂志文章
doi:10.3402/ijch.v62i1.17527
更新日期:2003-03-01 00:00:00
abstract:OBJECTIVES:The Alaska Native Medical Center diabetes program analysed Diabetes Care and Outcomes Audit data from 1994-2004 to evaluate the impact of the Special Diabetes Program for Indians (SDPI) funding on process and intermediate outcomes. STUDY DESIGN:We conducted a retrospective analysis of data from standardized...
journal_title:International journal of circumpolar health
pub_type: 杂志文章
doi:10.3402/ijch.v67i2-3.18271
更新日期:2008-06-01 00:00:00
abstract:OBJECTIVES:To compare 3 questionnaires used to evaluate early developmental problems, emotional disturbances and competence in 18-month-old infants. STUDY DESIGN:A follow-up study with parents of infants 8 to 36 months of age who responded to a developmental questionnaire. METHODS:Fifty infants (18 months of age) wer...
journal_title:International journal of circumpolar health
pub_type: 杂志文章
doi:10.3402/ijch.v68i4.17365
更新日期:2009-09-01 00:00:00
abstract:BACKGROUND:Community-acquired methicillin-resistant Staphylococcus aureus and methicillin-sensitive S. aureus infections are common to south-western Alaska and have been associated with traditional steambaths. More than a decade ago, recommendations were made to affected communities that included preventive skin care, ...
journal_title:International journal of circumpolar health
pub_type: 杂志文章
doi:10.3402/ijch.v75.30603
更新日期:2016-02-23 00:00:00