@article{5a2a159715294205805adb96983bfb2c,
title = "Endocrine response to acute cold exposure by lactating and non-lactating norway rats",
abstract = "Plasma levels of corticosterone, prolactin and thyroxine (T4) were measured in lactating and non-lactating Norway rats at 22°C and 4°C. Acute cold exposure increased corticosterone secretion in all groups, although non-lactating female levels rose higher than those of mother rats. While prolactin levels are unaffected by acute cold exposure in non-lactating females, mothers with their litters had lower prolactin levels in the cold. T4 levels increased during cold exposure in lactating females, suggesting that the low T4 levels observed during lactation may not be due to lactational competition for available iodine.",
keywords = "Corticosterone, Lactation, Mother-young interactions, Prolactin, Thermoregulation, Thyroxine",
author = "Adels, {Lori E.} and Michael Leon and Wiener, {Sandra G.} and Smith, {M. Susan}",
note = "Funding Information: Mothers may avoid some of the thermal consequences of being in the cold if they are able to huddle with their litter and thereby insulate themselves from such environmental contingencies. Pups also may modify maternal secretion of prolactin, corticosterone or T4 during cold exposure by their suckling-induced changes in these secretions. We therefore studied the role that pups play in modifying the endocrine and thermal responses of mothers in the cold. We also recorded the temperatures of all female rats before and after 1This research was supported by NIMH grant MH-39260 to M.L. who holds Research Scientist Development Award MH00731 from NIMH, research grant HD-14643 from NICHD to M.S.S. and HD02881 from NICHD to Seymore Levine. L.E.A. was supported by predoctoral fellowship MH-08966 from NIMH. 2Requests for reprints should be addressed to M. Leon.",
year = "1986",
month = jan,
doi = "10.1016/0031-9384(86)90093-4",
language = "English (US)",
volume = "36",
pages = "179--181",
journal = "Physiology and Behavior",
issn = "0031-9384",
publisher = "Elsevier Inc.",
number = "1",
}