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Items: 1 to 50 of 64

1.

Transcriptome analysis reveals a high aerobic capacity in the whale brain.

Krüger A, Fabrizius A, Mikkelsen B, Siebert U, Folkow LP, Burmester T.

Comp Biochem Physiol A Mol Integr Physiol. 2020 Feb;240:110593. doi: 10.1016/j.cbpa.2019.110593. Epub 2019 Oct 30.

PMID:
31676411
2.

Terrestrial locomotion of the Svalbard rock ptarmigan: comparing field and laboratory treadmill studies.

Marmol-Guijarro AC, Nudds RL, Marrin JC, Folkow LP, Codd JR.

Sci Rep. 2019 Aug 7;9(1):11451. doi: 10.1038/s41598-019-47989-6.

3.

Ambient temperature effects on stress-induced hyperthermia in Svalbard ptarmigan.

Nord A, Folkow LP.

Biol Open. 2019 Jun 20;8(6). pii: bio043497. doi: 10.1242/bio.043497.

4.

Seasonal variation in the thermal responses to changing environmental temperature in the world's northernmost land bird.

Nord A, Folkow LP.

J Exp Biol. 2018 Jan 10;221(Pt 1). pii: jeb171124. doi: 10.1242/jeb.171124.

5.

Effects of Polar Bear and Killer Whale Derived Contaminant Cocktails on Marine Mammal Immunity.

Desforges JP, Levin M, Jasperse L, De Guise S, Eulaers I, Letcher RJ, Acquarone M, Nordøy E, Folkow LP, Hammer Jensen T, Grøndahl C, Bertelsen MF, St Leger J, Almunia J, Sonne C, Dietz R.

Environ Sci Technol. 2017 Oct 3;51(19):11431-11439. doi: 10.1021/acs.est.7b03532. Epub 2017 Sep 25.

PMID:
28876915
6.

On the importance of understanding physiology when estimating energetics in cetaceans.

Folkow LP, Blix AS.

Biol Open. 2017 Feb 15;6(2):306. doi: 10.1242/bio.023929. No abstract available.

7.

Transcriptome Analysis Identifies Key Metabolic Changes in the Hooded Seal (Cystophora cristata) Brain in Response to Hypoxia and Reoxygenation.

Hoff ML, Fabrizius A, Czech-Damal NU, Folkow LP, Burmester T.

PLoS One. 2017 Jan 3;12(1):e0169366. doi: 10.1371/journal.pone.0169366. eCollection 2017.

8.

Synaptic transmission despite severe hypoxia in hippocampal slices of the deep-diving hooded seal.

Geiseler SJ, Larson J, Folkow LP.

Neuroscience. 2016 Oct 15;334:39-46. doi: 10.1016/j.neuroscience.2016.07.034. Epub 2016 Jul 30.

PMID:
27480049
9.

When the brain goes diving: transcriptome analysis reveals a reduced aerobic energy metabolism and increased stress proteins in the seal brain.

Fabrizius A, Hoff ML, Engler G, Folkow LP, Burmester T.

BMC Genomics. 2016 Aug 9;17:583. doi: 10.1186/s12864-016-2892-y.

10.

An atypical distribution of lactate dehydrogenase isoenzymes in the hooded seal (Cystophora cristata) brain may reflect a biochemical adaptation to diving.

Hoff ML, Fabrizius A, Folkow LP, Burmester T.

J Comp Physiol B. 2016 Apr;186(3):373-86. doi: 10.1007/s00360-015-0956-y. Epub 2016 Jan 28.

PMID:
26820264
11.

A Comparative Morphometric Analysis of Three Cranial Nerves in Two Phocids: The Hooded Seal (Cystophora cristata) and the Harbor Seal (Phoca vitulina).

Wohlert D, Kröger J, Witt M, Schmitt O, Wree A, Czech-Damal N, Siebert U, Folkow L, Hanke FD.

Anat Rec (Hoboken). 2016 Mar;299(3):370-8. doi: 10.1002/ar.23298. Epub 2015 Dec 21.

12.

The eyes of the deep diving hooded seal (Cystophora cristata) enhance sensitivity to ultraviolet light.

Hogg C, Neveu M, Folkow L, Stokkan KA, Hoh Kam J, Douglas RH, Jeffery G.

Biol Open. 2015 May 11;4(7):812-8. doi: 10.1242/bio.011304.

13.

KATP-channels play a minor role in the protective hypoxic shut-down of cerebellar activity in eider ducks (Somateria mollissima).

Geiseler SJ, Ludvigsen S, Folkow LP.

Neuroscience. 2015 Jan 22;284:751-8. doi: 10.1016/j.neuroscience.2014.10.046. Epub 2014 Nov 4.

PMID:
25451290
14.

The effects of season and sex upon the morphology and material properties of keratin in the Svalbard rock ptarmigan (Lagopus muta hyperborea).

Lees JJ, Folkow LP, Nudds RL, Codd JR.

J Therm Biol. 2014 Aug;44:126-30. doi: 10.1016/j.jtherbio.2014.01.002. Epub 2014 Jan 30.

PMID:
25086983
15.

The role of glycogen, glucose and lactate in neuronal activity during hypoxia in the hooded seal (Cystophora cristata) brain.

Czech-Damal NU, Geiseler SJ, Hoff ML, Schliep R, Ramirez JM, Folkow LP, Burmester T.

Neuroscience. 2014 Sep 5;275:374-83. doi: 10.1016/j.neuroscience.2014.06.024. Epub 2014 Jun 21.

PMID:
24959743
16.

No oxygen? No problem! Intrinsic brain tolerance to hypoxia in vertebrates.

Larson J, Drew KL, Folkow LP, Milton SL, Park TJ.

J Exp Biol. 2014 Apr 1;217(Pt 7):1024-39. doi: 10.1242/jeb.085381. Review.

17.

Seasonal differences in jump performance in the Svalbard rock ptarmigan (Lagopus muta hyperborea).

Lees JJ, Folkow LP, Codd JR, Nudds RL.

Biol Open. 2014 Apr 15;3(4):233-9. doi: 10.1242/bio.20147930.

18.

Shifting mirrors: adaptive changes in retinal reflections to winter darkness in Arctic reindeer.

Stokkan KA, Folkow L, Dukes J, Neveu M, Hogg C, Siefken S, Dakin SC, Jeffery G.

Proc Biol Sci. 2013 Oct 30;280(1773):20132451. doi: 10.1098/rspb.2013.2451. Print 2013 Dec 22.

19.

Probiotic dosing of Ruminococcus flavefaciens affects rumen microbiome structure and function in reindeer.

Præsteng KE, Pope PB, Cann IK, Mackie RI, Mathiesen SD, Folkow LP, Eijsink VG, Sundset MA.

Microb Ecol. 2013 Nov;66(4):840-9.

PMID:
23959114
20.

Rapid postnatal development of myoglobin from large liver iron stores in hooded seals.

Geiseler SJ, Blix AS, Burns JM, Folkow LP.

J Exp Biol. 2013 May 15;216(Pt 10):1793-8. doi: 10.1242/jeb.082099. Epub 2013 Jan 24.

21.

The metabolic cost of incline locomotion in the Svalbard rock ptarmigan (Lagopus muta hyperborea): the effects of incline grade and seasonal fluctuations in body mass.

Lees J, Folkow L, Stokkan KA, Codd J.

J Exp Biol. 2013 Apr 15;216(Pt 8):1355-63. doi: 10.1242/jeb.078709. Epub 2012 Dec 21.

22.

Why Rudolph's nose is red: observational study.

Ince C, van Kuijen AM, Milstein DM, Yürük K, Folkow LP, Fokkens WJ, Blix AS.

BMJ. 2012 Dec 14;345:e8311. doi: 10.1136/bmj.e8311.

23.

Neuroglobin of seals and whales: evidence for a divergent role in the diving brain.

Schneuer M, Flachsbarth S, Czech-Damal NU, Folkow LP, Siebert U, Burmester T.

Neuroscience. 2012 Oct 25;223:35-44. doi: 10.1016/j.neuroscience.2012.07.052. Epub 2012 Aug 3.

PMID:
22864183
24.

Regulation of brain temperature in winter-acclimatized reindeer under heat stress.

Blix AS, Walløe L, Folkow LP.

J Exp Biol. 2011 Nov 15;214(Pt 22):3850-6. doi: 10.1242/jeb.057455.

25.

Understanding sex differences in the cost of terrestrial locomotion.

Lees JJ, Nudds RL, Folkow LP, Stokkan KA, Codd JR.

Proc Biol Sci. 2012 Feb 22;279(1729):826-32. doi: 10.1098/rspb.2011.1334. Epub 2011 Aug 17.

26.

Arctic reindeer extend their visual range into the ultraviolet.

Hogg C, Neveu M, Stokkan KA, Folkow L, Cottrill P, Douglas R, Hunt DM, Jeffery G.

J Exp Biol. 2011 Jun 15;214(Pt 12):2014-9. doi: 10.1242/jeb.053553.

27.

Evidence for energy savings from aerial running in the Svalbard rock ptarmigan (Lagopus muta hyperborea).

Nudds RL, Folkow LP, Lees JJ, Tickle PG, Stokkan KA, Codd JR.

Proc Biol Sci. 2011 Sep 7;278(1718):2654-61. doi: 10.1098/rspb.2010.2742. Epub 2011 Feb 2.

28.

Slow intrinsic oscillations in thick neocortical slices of hypoxia tolerant deep diving seals.

Ramirez JM, Folkow LP, Ludvigsen S, Ramirez PN, Blix AS.

Neuroscience. 2011 Mar 17;177:35-42. doi: 10.1016/j.neuroscience.2010.12.032. Epub 2010 Dec 24.

PMID:
21185914
29.

Reduced metabolic cost of locomotion in Svalbard rock ptarmigan (Lagopus muta hyperborea) during winter.

Lees J, Nudds R, Stokkan KA, Folkow L, Codd J.

PLoS One. 2010 Nov 15;5(11):e15490. doi: 10.1371/journal.pone.0015490.

30.

Selective brain cooling and its vascular basis in diving seals.

Blix AS, Walløe L, Messelt EB, Folkow LP.

J Exp Biol. 2010 Aug 1;213(Pt 15):2610-6. doi: 10.1242/jeb.040345.

31.

Microbial degradation of usnic acid in the reindeer rumen.

Sundset MA, Barboza PS, Green TK, Folkow LP, Blix AS, Mathiesen SD.

Naturwissenschaften. 2010 Mar;97(3):273-8. doi: 10.1007/s00114-009-0639-1. Epub 2009 Dec 23.

PMID:
20033122
32.

Differences in in vitro cerebellar neuronal responses to hypoxia in eider ducks, chicken and rats.

Ludvigsen S, Folkow LP.

J Comp Physiol A Neuroethol Sens Neural Behav Physiol. 2009 Nov;195(11):1021-30. doi: 10.1007/s00359-009-0476-x. Epub 2009 Sep 25.

PMID:
19779726
33.

When the brain goes diving: glial oxidative metabolism may confer hypoxia tolerance to the seal brain.

Mitz SA, Reuss S, Folkow LP, Blix AS, Ramirez JM, Hankeln T, Burmester T.

Neuroscience. 2009 Oct 6;163(2):552-60. doi: 10.1016/j.neuroscience.2009.06.058. Epub 2009 Jul 2.

PMID:
19576963
34.

Development of myoglobin concentration and acid buffering capacity in harp (Pagophilus groenlandicus) and hooded (Cystophora cristata) seals from birth to maturity.

Lestyk KC, Folkow LP, Blix AS, Hammill MO, Burns JM.

J Comp Physiol B. 2009 Nov;179(8):985-96. doi: 10.1007/s00360-009-0378-9. Epub 2009 Jun 30.

PMID:
19565249
35.

Remarkable neuronal hypoxia tolerance in the deep-diving adult hooded seal (Cystophora cristata).

Folkow LP, Ramirez JM, Ludvigsen S, Ramirez N, Blix AS.

Neurosci Lett. 2008 Dec 3;446(2-3):147-50. doi: 10.1016/j.neulet.2008.09.040.

PMID:
18824079
36.

Size and distribution of oxygen stores in harp and hooded seals from birth to maturity.

Burns JM, Lestyk KC, Folkow LP, Hammill MO, Blix AS.

J Comp Physiol B. 2007 Aug;177(6):687-700. Epub 2007 Jun 19.

PMID:
17576570
37.

Where clocks are redundant: weak circadian mechanisms in reindeer living under polar photic conditions.

van Oort BE, Tyler NJ, Gerkema MP, Folkow L, Stokkan KA.

Naturwissenschaften. 2007 Mar;94(3):183-94. Epub 2006 Nov 28.

PMID:
17131139
38.

Hypoxia tolerance in mammals and birds: from the wilderness to the clinic.

Ramirez JM, Folkow LP, Blix AS.

Annu Rev Physiol. 2007;69:113-43. Review.

PMID:
17037981
39.

Circadian organization in reindeer.

van Oort BE, Tyler NJ, Gerkema MP, Folkow L, Blix AS, Stokkan KA.

Nature. 2005 Dec 22;438(7071):1095-6.

PMID:
16371996
40.

Inhibition of shivering in hypothermic seals during diving.

Kvadsheim PH, Folkow LP, Blix AS.

Am J Physiol Regul Integr Comp Physiol. 2005 Aug;289(2):R326-R331. Epub 2005 Mar 10.

41.

Endogenous glycogen prevents Ca2+ overload and hypercontracture in harp seal myocardial cells during simulated ischemia.

Henden T, Aasum E, Folkow L, Mjøs OD, Lathrop DA, Larsen TS.

J Mol Cell Cardiol. 2004 Jul;37(1):43-50.

PMID:
15242734
42.

Click sounds produced by cod (Gadus morhua).

Vester HI, Folkow LP, Blix AS.

J Acoust Soc Am. 2004 Feb;115(2):914-9.

PMID:
15000203
43.
44.

Exostoses and cavernous venous formation in the external auditory canal of the hooded seal as a functional physiological organ.

Stenfors LE, Sade J, Hellström S, Anniko M, Folkow L.

Acta Otolaryngol. 2000 Oct;120(8):940-3.

PMID:
11200588
45.

Cutaneous heat flux models do not reliably predict metabolic rates of marine mammals.

Boily P, Kvadsheim PH, Folkow LP.

J Theor Biol. 2000 Dec 7;207(3):317-23.

PMID:
11082302
46.

Panting in reindeer (Rangifer tarandus).

Aas-Hansen O, Folkow LP, Blix AS.

Am J Physiol Regul Integr Comp Physiol. 2000 Oct;279(4):R1190-5.

47.
48.

Simulations of the effect of currently used grenade harpoons for the killing of whales using a pig-model.

Blix AS, Folkow LP, Sørlie DG.

Acta Vet Scand. 2000;41(3):237-42.

PMID:
11126573
49.

Brain cooling in diving seals.

Odden A, Folkow LP, Caputa M, Hotvedt R, Blix AS.

Acta Physiol Scand. 1999 May;166(1):77-8. No abstract available.

PMID:
10372982
50.

Changes in fibrinolytic activity in diving grey seals.

Lohman S, Folkow LP, Osterud B, Sager G.

Comp Biochem Physiol A Mol Integr Physiol. 1998 Aug;120(4):693-8.

PMID:
9828397

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