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Keywords: hepatopancreas
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Journal Articles
J Exp Biol (2010) 213 (5): 769–774.
Published: 1 March 2010
... cation antiporter and a low affinity, high capacity organic anion exchanger. Together these two systems have the potential to regulate cytoplasmic metals over a wide concentration range. The crustacean hepatopancreas is a multifunctional organ that is composed of hundreds of blind-ending tubules lined...
Journal Articles
Journal Articles
J Exp Biol (2007) 210 (10): 1813–1824.
Published: 15 May 2007
... in hepatopancreas, expression in gill was 10-fold greater and expression was highest in antennal gland (15-fold greater than in hepatopancreas). Compared with baseline expression levels in intermolt stage,expression of ECaC in antennal gland increased 7.4- and 23.8-fold,respectively, in pre- and postmolt stages...
Journal Articles
J Exp Biol (2006) 209 (4): 677–688.
Published: 15 February 2006
... membrane Na + /K + -ATPase is a potentially key target for regulation during estivation. Na + /K + -ATPase was investigated in foot muscle and hepatopancreas of the land snail Otala lactea , comparing active and estivating states. In both tissues enzyme properties changed significantly during estivation...
Journal Articles
J Exp Biol (2005) 208 (10): 1887–1894.
Published: 15 May 2005
... was recorded for Buthidae following severe desiccation. When desiccated, scorpions lose water primarily from the hepatopancreas, while haemolymph volume is more tightly regulated. However,the haemolymph volume of Scorpionidae decreases as a result of depletion of hepatopancreas water stores following severe...
Journal Articles
J Exp Biol (2004) 207 (4): 571–578.
Published: 1 February 2004
...George A. Gerencser; Frank Robbins; Jianliang Zhang; Gregory A. Ahearn SUMMARY The transport of [ 14 C]oxalate (Ox 2–) by epithelial brush-border membrane vesicles (BBMV) of lobster (Homarus americanus) hepatopancreas, formed by a magnesium precipitation technique, was stimulated by an outward Cl...
Journal Articles
J Exp Biol (2002) 205 (3): 405–413.
Published: 1 February 2002
...Pamela Chavez-Crooker; Nestor Garrido; Gregory A. Ahearn SUMMARY Mechanisms of copper transport into purified mitochondrial suspensions prepared from the hepatopancreas of the Atlantic lobster Homarus americanus were investigated. Mitochondria were purified by combining methods of differential...
Journal Articles
Journal Articles
J Exp Biol (2000) 203 (23): 3603–3612.
Published: 1 December 2000
...T. Bishop; M. D. Brand ABSTRACT Cells isolated from the hepatopancreas of the land snail Helix aspersa strongly depress respiration both immediately in response to lowered (oxygen conformation) and, in the longer term, during aestivation. These phenomena were analysed by dividing cellular...
Journal Articles
J Exp Biol (2000) 203 (9): 1497–1502.
Published: 1 May 2000
... © 2000 by Company of Biologists 2000 sulphate/oxalate exchange hepatopancreas binding constant Atlantic lobster Homarus americanus Gastrointestinal and renal transport of the divalent anion sulfate across epithelial apical membranes has been investigated in various vertebrate...
Journal Articles
J Exp Biol (1999) 202 (21): 3003–3010.
Published: 1 November 1999
...Mahealani K. Monteilh-Zoller; Vincenzo Zonno; Carlo Storelli; Gregory A. Ahearn ABSTRACT Epithelial brush-border membrane vesicles (BBMVs) from the hepatopancreas of the lobster Homarus americanus were prepared using a magnesium precipitation technique and employed in transport experiments designed...
Journal Articles
Journal Articles
J Exp Biol (1998) 201 (2): 211–220.
Published: 15 January 1998
... of crustacean antennal glands . Am. J. Physiol. 264 , R1206 – R1213 . Ahearn , G. A. , Grover , M. L. , Tsuji , R. T. and Clay , L. P. (1987). Proton-stimulated Cl–HCO3 antiport by basolateral membrane vesicles of lobster hepatopancreas . Am. J. Physiol. 252 , R859 – R870...
Journal Articles
J Exp Biol (1996) 199 (5): 1195–1208.
Published: 1 May 1996
... was subtracted from total uptake at selected exposure intervals to provide estimates of transport activity alone. Fig. 1. The effect of a transmembrane osmotic gradient on equilibrium uptake of 45 Ca 2+ by brush-border membrane vesicles (BBMVs) from lobster hepatopancreas. Vesicles were loaded with 200...
Journal Articles
J Exp Biol (1996) 199 (3): 635–641.
Published: 1 March 1996
...M. Thamotharan; G. A. Ahearn ABSTRACT Epithelial brush-border membrane vesicles (BBMVs) of lobster (Homarus americanus) hepatopancreas were formed by a Mg 2+ precipitation technique. In these BBMVs, [ 14 C]glycylsarcosine ([ 14 C]Gly-Sar) uptake was stimulated by a transmembrane proton gradient...
Journal Articles
J Exp Biol (1994) 196 (1): 319–335.
Published: 1 November 1994
... 2Na/1H antiport in crustacean hepatopancreas . Am. J. Physiol . 257 , R484 – R493 . Ahearn , G. A. and Franco , P. (1990). Na and Ca share the electrogenic 2Na/1H antiporter in crustacean antennal glands . Am. J. Physiol . 259 , F758 – F767 . Ahearn , G...
Journal Articles
J Exp Biol (1994) 189 (1): 85–104.
Published: 1 April 1994
... of the invertebrate electrogenic cation exchanger, may be diverse. References Ahearn , G. A. and Clay , L. P. (1989). Kinetic analysis of electrogenic 2Na + /1H + antiport in crustacean hepatopancreas . Am. J. Physiol . 257 , R484 – R493 . Ahearn , G. A. and Franco , P. (1990...
Journal Articles
J Exp Biol (1988) 140 (1): 107–121.
Published: 1 November 1988
...Teva Siu; Gregory A. Ahearn ABSTRACT The mechanism of [ 3 H]myo-inositol transport by the lobster hepatopancreas was examined using purified brush-border membrane vesicles. Transport was stimulated by a 100 mmol 1 −1 inward Na + gradient, but other cation gradients were ineffective, suggesting a Na...
Journal Articles
J Exp Biol (1988) 136 (1): 363–381.
Published: 1 May 1988
... from diffusion, was Na + -and Cl − -independent, and was cis-inhibited by more polar amino acids such as lysine, hydroxyproline, MeAIB, alanine and glutamate. These results suggest that brush-border leucine transport in lobster hepatopancreas at acidic pH may occur by a combination of a modified L...
Journal Articles
J Exp Biol (1987) 130 (1): 175–191.
Published: 1 July 1987
... gastrointestinal physiology Homarus americanus hepatopancreas Amino acid transport across epithelial membranes occurs by a variety of carrier processes that illustrate various degrees of substrate specificity and are either sodiumdependent or sodium-independent (Stevens, Ross & Wright, 1982). While...