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LIBRIS Formathandbok  (Information om MARC21)
FältnamnIndikatorerMetadata
00004675naa a2200493 4500
001oai:lup.lub.lu.se:4e7b83ec-1aa9-48c0-93a7-3337a64be500
003SwePub
008160401s2004 | |||||||||||000 ||eng|
024a https://lup.lub.lu.se/record/1275072 URI
024a https://doi.org/10.1210/jc.2004-04272 DOI
040 a (SwePub)lu
041 a engb eng
042 9 SwePub
072 7a art2 swepub-publicationtype
072 7a ref2 swepub-contenttype
100a Malm, Gunillau Lund University,Lunds universitet,Reproduktionsmedicin, Malmö,Forskargrupper vid Lunds universitet,Reproductive medicine, Malmö,Lund University Research Groups4 aut0 (Swepub:lu)kir-gma
2451 0a Reproductive function during summer and winter in Norwegian men living north and south of the Arctic circle.
264 1b The Endocrine Society,c 2004
520 a Seasonal, daylight-dependent variation in human spermatozoa counts, with lowest values during summer, has been suggested. To test this hypothesis, we performed a longitudinal study of semen quality and reproductive hormone levels in Norwegian men living north and south of the Arctic Circle. An ejaculate and a serum specimen were obtained both in summer and in winter from 92 volunteers in Tromsoe (69° north latitude) and 112 in Oslo (60° north latitude). Semen analyses were performed, and serum was assayed for FSH and inhibin B. The median spermatozoa concentration in Tromsoe after adjustment for abstinence period length was 49 × 106/ml in summer and 54 × 106/ml in winter. Corresponding values for Oslo were 59 × 106/ml and 54 × 106/ml. The seasonal differences in spermatozoa concentration were not statistically significant, nor were significant differences observed in median total spermatozoa count, semen volume, percentage progressive motile spermatozoa, or FSH. In Tromsoe, but not Oslo, inhibin B concentration was slightly, but significantly (P = 0.02) higher in winter than summer (229 ng/liter vs. 223 ng/liter).The length of the daylight period may have a slight impact on hormonal markers of spermatogenesis but does not cause substantial changes in spermatozoa numbers and motility.
650 7a MEDICIN OCH HÄLSOVETENSKAPx Klinisk medicinx Reproduktionsmedicin och gynekologi0 (SwePub)302202 hsv//swe
650 7a MEDICAL AND HEALTH SCIENCESx Clinical Medicinex Obstetrics, Gynaecology and Reproductive Medicine0 (SwePub)302202 hsv//eng
650 7a MEDICIN OCH HÄLSOVETENSKAPx Hälsovetenskapx Arbetsmedicin och miljömedicin0 (SwePub)303032 hsv//swe
650 7a MEDICAL AND HEALTH SCIENCESx Health Sciencesx Occupational Health and Environmental Health0 (SwePub)303032 hsv//eng
650 7a MEDICIN OCH HÄLSOVETENSKAPx Medicinska och farmaceutiska grundvetenskaperx Läkemedelskemi0 (SwePub)301032 hsv//swe
650 7a MEDICAL AND HEALTH SCIENCESx Basic Medicinex Medicinal Chemistry0 (SwePub)301032 hsv//eng
700a Haugen, Trine B4 aut
700a Henrichsen, Trine4 aut
700a Bjørsvik, Cathrine4 aut
700a Grotmol, Tom4 aut
700a Saether, Thomas4 aut
700a Malm, Johanu Lund University,Lunds universitet,Klinisk kemi, Malmö,Forskargrupper vid Lunds universitet,Clinical Chemistry, Malmö,Lund University Research Groups4 aut0 (Swepub:lu)klke-jma
700a Figenschau, Yngve4 aut
700a Hagmar, Lars4 aut
700a Rylander, Larsu Lund University,Lunds universitet,Avdelningen för arbets- och miljömedicin,Institutionen för laboratoriemedicin,Medicinska fakulteten,Division of Occupational and Environmental Medicine, Lund University,Department of Laboratory Medicine,Faculty of Medicine4 aut0 (Swepub:lu)ymed-lry
700a Levine, Richard J4 aut
700a Giwercman, Aleksanderu Lund University,Lunds universitet,Reproduktionsmedicin, Malmö,Forskargrupper vid Lunds universitet,Reproductive medicine, Malmö,Lund University Research Groups4 aut0 (Swepub:lu)kir-agi
710a Reproduktionsmedicin, Malmöb Forskargrupper vid Lunds universitet4 org
773t Journal of Clinical Endocrinology and Metabolismd : The Endocrine Societyg 89:9, s. 4397-4402q 89:9<4397-4402x 1945-7197x 0021-972X
856u http://jcem.endojournals.org/cgi/content/full/89/9/4397x freey FULLTEXT
856u http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=15356037&dopt=Abstractx freey FULLTEXT
856u http://dx.doi.org/10.1210/jc.2004-0427y FULLTEXT
856u https://academic.oup.com/jcem/article-pdf/89/9/4397/10771094/jcem4397.pdf
8564 8u https://lup.lub.lu.se/record/127507
8564 8u https://doi.org/10.1210/jc.2004-0427

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