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Gaurav Jain, Marie Starksen, Kashika Singh, Christopher Hoang, Paul Yancey, Charlene McCord, Douglas S. Fudge
J Exp Biol (2019) 222 (22): jeb213793.
Published: 22 November 2019
...Gaurav Jain; Marie Starksen; Kashika Singh; Christopher Hoang; Paul Yancey; Charlene McCord; Douglas S. Fudge ABSTRACT Hagfish defend themselves from fish predators by producing large volumes of gill-clogging slime when they are attacked. The slime consists of seawater and two major components...
J Exp Biol (2019) 222 (14): jeb190470.
Published: 15 July 2019
...Chris N. Glover; Alyssa M. Weinrauch ABSTRACT The hagfishes provide valuable insight into the physiology of feeding, digestion and nutrient absorption by virtue of unusual and unique features of their biology. For example, members of this group undergo long periods of fasting, and are the only...
J Exp Biol (2014) 217 (8): 1263–1268.
Published: 15 April 2014
...Mark A. Bernards, Jr; Isdin Oke; Andreas Heyland; Douglas S. Fudge Hagfishes are known for their ability to rapidly produce vast quantities of slime when provoked. The slime is formed via the interaction between seawater and two components released by the slime glands: mucin vesicles from gland...
Includes: Supplementary data
J Exp Biol (2006) 209 (4): 702–710.
Published: 15 February 2006
...Jeanette Lim; Douglas S. Fudge; Nimrod Levy; John M. Gosline SUMMARY Hagfish are able to produce substantial amounts of slime when harassed, but the precise ecological function of the slime is unclear. One possibility is that the slime acts as a defence against gill-breathing predators, whose gills...
J Exp Biol (2005) 208 (24): 4613–4625.
Published: 15 December 2005
...Douglas S. Fudge; Nimrod Levy; Scott Chiu; John M. Gosline SUMMARY Hagfish slime consists of mucins and protein threads that are released from slime glands and mix with seawater to produce an ephemeral material with intriguing physical properties. We recently characterized the mechanics...
J Exp Biol (2003) 206 (8): 1389–1395.
Published: 15 April 2003
...Gabriele Müller; Angela Fago; Roy E. Weber SUMMARY Hagfish hemoglobin (Hb) is considered to represent a transition stage between invertebrate and vertebrate hemoglobins. The Hb system of Myxine glutinosa consists of three monomeric hemoglobins, which upon deoxygenation associate to form primarily...
J Exp Biol (2002) 205 (24): 3819–3831.
Published: 15 December 2002
...John H. Long, Jr; Magdalena Koob-Emunds; Benjamin Sinwell; Thomas J. Koob SUMMARY To determine the possible locomotor functions of the hagfish notochord, we measured its flexural stiffness EI (N m -2 ) and flexural damping C (kg m 3 s -1 ), under in vitro conditions that mimicked the body curvature...
In collection:Cardiology Research
J Exp Biol (2002) 205 (22): 3535–3541.
Published: 15 November 2002
...Isao Inoue; Izuo Tsutsui; Quentin Bone SUMMARY Hagfishes are regarded as the most primitive living craniates. Excitation—contraction (E—C) coupling mechanisms were studied in skeletal and caudal heart muscle fibres of the hagfish Eptatretus burgeri . In white (fast) skeletal muscle fibres from...
J Exp Biol (2001) 204 (11): 2029–2033.
Published: 1 June 2001
...Frank B. Jensen SUMMARY Autoxidation of oxyhaemoglobin (oxyHb) to methaemoglobin was measured at different temperatures in haemoglobin solutions from Atlantic hagfish, river lamprey, common carp, yellowfin tuna and pig. The aims were to evaluate the impact of the absent distal histidine in hagfish...
J Exp Biol (1999) 202 (14): 1963–1968.
Published: 15 July 1999
...Frank B. Jensen ABSTRACT Agnathans, comprising lamprey and hagfish species, have been reported to be practically devoid of HCO 3 − /Cl − exchange across the red blood cell membrane. This suggests that the capacity of their haemoglobin (Hb) to remove H + is essential for obtaining a high CO 2...
J Exp Biol (1999) 202 (8): 947–955.
Published: 15 April 1999
...J. A. Riegel ABSTRACT Adrenaline and noradrenaline increased the perfusion pressure ( P perf ) and single glomerulus filtration rate (SGFR) of perfused hagfish glomeruli. Small amounts (0.1 % or 0.5 %) of bovine serum albumin (BSA) in perfusion fluids containing Ficoll 70 did not diminish the loss...
J Exp Biol (1996) 199 (11): 2485–2497.
Published: 1 November 1996
...Nicholas J. Bernier; Steve F. Perry ABSTRACT An in situ saline-perfused systemic heart/posterior cardinal vein preparation of the Atlantic hagfish ( Myxine glutinosa ) was used to assess (1) the ability of the chromaffin tissue to release catecholamines in response to adrenocorticotropic hormone...
J Exp Biol (1996) 199 (9): 1999–2009.
Published: 1 September 1996
... from the SR. This apparent difference in myocardial excitation–contraction (E–C) coupling was investigated further by determining DHPR and RyR densities in ventricular homogenate preparations from rat, trout, dogfish and hagfish. DHPR B max values (means ± S.E.M.) were highest in rat (0.30±0.01 pmol mg...
In collection:Cardiology Research
J Exp Biol (1996) 199 (6): 1429–1434.
Published: 1 June 1996
...Marianne Johnsson; Michael Axelsson ABSTRACT The effects of preload and afterload on the performance of the systemic heart of the hagfish Myxine glutinosa were investigated before and during sotalol treatment using an in situ perfusion technique. Elevation of input pressure (preload) increased flow...
J Exp Biol (1995) 198 (10): 2185–2196.
Published: 1 October 1995
... . Inflation experiments were also performed on the aortae of two species of primitive vertebrates, the sea lamprey Petromyzon marinus and the Atlantic hagfish Myxine glutinosa . The inflation experiments demonstrated similar overall biomechanical properties in each case, despite the existence of differences...
J Exp Biol (1995) 198 (9): 1875–1882.
Published: 1 September 1995
...Tes Toop; John A. Donald; David H. Evans ABSTRACT The character of natriuretic peptide receptors (NPRs) in the kidney and aortae of the Atlantic hagfish Myxine glutinosa was determined and compared with that of NPRs in hagfish gills. The relationship of hagfish kidney and aortic NPRs with NPRs from...
J Exp Biol (1995) 198 (1): 117–126.
Published: 1 January 1995
...Tes Toop; John A. Donald; David H. Evans ABSTRACT Specific binding of iodinated natriuretic peptides 125 I-ANP and 125 I-CNP was examined in the gill of the Atlantic hagfish Myxine glutinosa by tissue section autoradiography, saturation and competition analysis of binding to membrane preparations...
J Exp Biol (1994) 190 (1): 281–286.
Published: 1 May 1994
...L. Sundin; M. Axelsson; S. Nilsson; W. Davison; M. E. Forster ABSTRACT Of the extant vertebrate animals, the hagfishes are generally considered to be the group which diverged first from the ancestral vertebrate lineage, although molecular sequence analysis has recently suggested that they form...
J Exp Biol (1991) 161 (1): 201–215.
Published: 1 November 1991
...D. G. Mcdonald; V. Cavdek; L. Calvert; C. L. Milligan ABSTRACT Blood acid-base status and net transfers of acidic equivalents to the external environment were studied in hagfish, Myxine glutinosa , infused with ammonium sulphate (4mequivkg −1 NFL + ) or with sulphuric acid (3mequivkg −1 H...
J Exp Biol (1991) 157 (1): 551–555.
Published: 1 May 1991
... 1991 dogfish shark hagfish atriopeptin ventral aorta vasodilation Squalus acanthias Myxine glutinosa Most studies on the presence and function of AP in fishes have dealt with teleosts, but a limited data base indicates that AP probably plays some physiological role(s) in the two...