R. S. Takeshita, R. Mendonça, F. Bercovitch, M. Huffman
{"title":"Developmental changes in the endocrine stress response in orangutans (Pongo pygmaeus)","authors":"R. S. Takeshita, R. Mendonça, F. Bercovitch, M. Huffman","doi":"10.1007/s00360-019-01235-7","DOIUrl":"https://doi.org/10.1007/s00360-019-01235-7","url":null,"abstract":"","PeriodicalId":15377,"journal":{"name":"Journal of Comparative Physiology B","volume":"6 1","pages":"659 - 672"},"PeriodicalIF":0.0,"publicationDate":"2019-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79687500","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}
{"title":"Pregnancy reduces critical thermal maximum, but not voluntary thermal maximum, in a viviparous skink","authors":"Evelyn Virens, A. Cree","doi":"10.1007/s00360-019-01230-y","DOIUrl":"https://doi.org/10.1007/s00360-019-01230-y","url":null,"abstract":"","PeriodicalId":15377,"journal":{"name":"Journal of Comparative Physiology B","volume":"110 1","pages":"611 - 621"},"PeriodicalIF":0.0,"publicationDate":"2019-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75997046","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}
Kamila Foguesatto, C. Bastos, R. Boyle, L. Nery, M. M. Souza
{"title":"Participation of Na+/K+-ATPase and aquaporins in the uptake of water during moult processes in the shrimp Palaemon argentinus (Nobili, 1901)","authors":"Kamila Foguesatto, C. Bastos, R. Boyle, L. Nery, M. M. Souza","doi":"10.1007/s00360-019-01232-w","DOIUrl":"https://doi.org/10.1007/s00360-019-01232-w","url":null,"abstract":"","PeriodicalId":15377,"journal":{"name":"Journal of Comparative Physiology B","volume":"85 1","pages":"523 - 535"},"PeriodicalIF":0.0,"publicationDate":"2019-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83402861","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}
{"title":"An in vitro analysis of intestinal ammonia transport in fasted and fed freshwater rainbow trout: roles of NKCC, K+ channels, and Na+, K+ ATPase","authors":"J. Rubino, Jonathan M. Wilson, C. Wood","doi":"10.1007/s00360-019-01231-x","DOIUrl":"https://doi.org/10.1007/s00360-019-01231-x","url":null,"abstract":"","PeriodicalId":15377,"journal":{"name":"Journal of Comparative Physiology B","volume":"98 1","pages":"549 - 566"},"PeriodicalIF":0.0,"publicationDate":"2019-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80022433","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}
A. Seale, K. Pavlosky, Fritzie T. Celino-Brady, Y. Yamaguchi, J. Breves, D. Lerner
{"title":"Systemic versus tissue-level prolactin signaling in a teleost during a tidal cycle","authors":"A. Seale, K. Pavlosky, Fritzie T. Celino-Brady, Y. Yamaguchi, J. Breves, D. Lerner","doi":"10.1007/s00360-019-01233-9","DOIUrl":"https://doi.org/10.1007/s00360-019-01233-9","url":null,"abstract":"","PeriodicalId":15377,"journal":{"name":"Journal of Comparative Physiology B","volume":"1 1","pages":"581 - 594"},"PeriodicalIF":0.0,"publicationDate":"2019-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89176479","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}
{"title":"Effects of health status on pressure-induced changes in phocid immune function and implications for dive ability","authors":"L. A. Thompson, T. Romano","doi":"10.1007/s00360-019-01228-6","DOIUrl":"https://doi.org/10.1007/s00360-019-01228-6","url":null,"abstract":"","PeriodicalId":15377,"journal":{"name":"Journal of Comparative Physiology B","volume":"184 1","pages":"637 - 657"},"PeriodicalIF":0.0,"publicationDate":"2019-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75548736","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}
Maria Cartolano, Haley N. Gancel, Joshua Lonthair, Chris M. Wood, Chris M. Wood, M. McDonald
{"title":"Pulsatile urea excretion in Gulf toadfish: the role of circulating serotonin and additional 5-HT receptor subtypes","authors":"Maria Cartolano, Haley N. Gancel, Joshua Lonthair, Chris M. Wood, Chris M. Wood, M. McDonald","doi":"10.1007/s00360-019-01223-x","DOIUrl":"https://doi.org/10.1007/s00360-019-01223-x","url":null,"abstract":"","PeriodicalId":15377,"journal":{"name":"Journal of Comparative Physiology B","volume":"114 1","pages":"537 - 548"},"PeriodicalIF":0.0,"publicationDate":"2019-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77262083","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}
Dalen An, A. Husovic, Laeequa Ali, E. Weddle, Lilian Nagle, G. Ahearn
{"title":"Ocean acidification: synergistic inhibitory effects of protons and heavy metals on 45Ca uptake by lobster branchiostegite membrane vesicles","authors":"Dalen An, A. Husovic, Laeequa Ali, E. Weddle, Lilian Nagle, G. Ahearn","doi":"10.1007/s00360-019-01227-7","DOIUrl":"https://doi.org/10.1007/s00360-019-01227-7","url":null,"abstract":"","PeriodicalId":15377,"journal":{"name":"Journal of Comparative Physiology B","volume":"320 1","pages":"513 - 521"},"PeriodicalIF":0.0,"publicationDate":"2019-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80215995","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}
K S Rigano, J L Gehring, B D Evans Hutzenbiler, A V Chen, O L Nelson, C A Vella, C T Robbins, H T Jansen
{"title":"Life in the fat lane: seasonal regulation of insulin sensitivity, food intake, and adipose biology in brown bears.","authors":"K S Rigano, J L Gehring, B D Evans Hutzenbiler, A V Chen, O L Nelson, C A Vella, C T Robbins, H T Jansen","doi":"10.1007/s00360-016-1050-9","DOIUrl":"10.1007/s00360-016-1050-9","url":null,"abstract":"<p><p>Grizzly bears (Ursus arctos horribilis) have evolved remarkable metabolic adaptations including enormous fat accumulation during the active season followed by fasting during hibernation. However, these fluctuations in body mass do not cause the same harmful effects associated with obesity in humans. To better understand these seasonal transitions, we performed insulin and glucose tolerance tests in captive grizzly bears, characterized the annual profiles of circulating adipokines, and tested the anorectic effects of centrally administered leptin at different times of the year. We also used bear gluteal adipocyte cultures to test insulin and beta-adrenergic sensitivity in vitro. Bears were insulin resistant during hibernation but were sensitive during the spring and fall active periods. Hibernating bears remained euglycemic, possibly due to hyperinsulinemia and hyperglucagonemia. Adipokine concentrations were relatively low throughout the active season but peaked in mid-October prior to hibernation when fat content was greatest. Serum glycerol was highest during hibernation, indicating ongoing lipolysis. Centrally administered leptin reduced food intake in October, but not in August, revealing seasonal variation in the brain's sensitivity to its anorectic effects. This was supported by strong phosphorylated signal transducer and activator of transcription 3 labeling within the hypothalamus of hibernating bears; labeling virtually disappeared in active bears. Adipocytes collected during hibernation were insulin resistant when cultured with hibernation serum but became sensitive when cultured with active season serum. Heat treatment of active serum blocked much of this action. Clarifying the cellular mechanisms responsible for the physiology of hibernating bears may inform new treatments for metabolic disorders.</p>","PeriodicalId":15377,"journal":{"name":"Journal of Comparative Physiology B","volume":"84 1","pages":"649-676"},"PeriodicalIF":0.0,"publicationDate":"2017-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72901551","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}