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Keywords: cholesterol
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Journal Articles
J Exp Biol (2016) 219 (1): 17–25.
Published: 1 January 2016
... gradually returned to initial values. However, pH reached its peak value following 1 week at −20°C, but decreased after longer periods of freezing. During cold acclimation, cholesterol levels decreased in the hemolymph and the membrane fraction of fat body but not in other tissues. Lethal freezing at −80°C...
Journal Articles
J Exp Biol (2009) 212 (19): 3051–3059.
Published: 1 October 2009
... are required by the crustaceans to form the membrane component cholesterol, which in turn plays a role in thermal adaptation. Here, we determined the influence of temperature on growth,reproduction and the allocation of dietary sterol into somatic tissues and eggs of the keystone species Daphnia magna raised...
Journal Articles
J Exp Biol (2009) 212 (1): 71–77.
Published: 1 January 2009
...R. Patrick Hassett; Elizabeth L. Crockett SUMMARY Effects of habitat and acclimation temperature on cholesterol contents were examined in oceanic and inshore species of copepods. The cholesterol content of five species of thermally acclimated copepods was determined, and nine species (representing...
Journal Articles
J Exp Biol (2005) 208 (22): 4283–4290.
Published: 15 November 2005
...John K. Zehmer; Jeffrey R. Hazel SUMMARY In poikilotherms, increases in plasma membrane (PM) cholesterol and an increase in the degree of lipid acyl chain saturation commonly accompany an increase in growth temperature. This has typically been interpreted in terms of membrane fluidity/order...
Includes: Supplementary data
Journal Articles
J Exp Biol (2005) 208 (10): 1895–1904.
Published: 15 May 2005
... for 40 days at -20°C, individual organ function was retained to a limited extent. Through the autumn, cholesterol concentrations in the hemolymph increased nearly fourfold. In contrast, the ratio of cholesterol to protein content (nmol mg l -1 ) in the MT membrane remained relatively constant (22∼24 nmol...
Journal Articles
J Exp Biol (2005) 208 (2): 371–381.
Published: 15 January 2005
...- 6) as well as high levels of cholesterol. These results are discussed in relation to neurological function and the emerging field of membrane lipid rafts. Smaller species had relatively larger brains, particularly in the birds where the brain represented 3.3% of body mass in the zebra finch...
Journal Articles
J Exp Biol (2004) 207 (5): 787–801.
Published: 15 February 2004
...), the skin supported only a very small flux of NH 3 (0.0095 μmol cm -2 min -1 ). Cholesterol content (4.5 μmol g -1 ) in the skin was high, which suggests low membrane fluidity. Phosphatidylcholine, which has a stabilizing effect on membranes, constituted almost 50% of the skin phospholipids...
Journal Articles
J Exp Biol (2003) 206 (10): 1657–1667.
Published: 15 May 2003
...John K. Zehmer; Jeffrey R. Hazel SUMMARY Rafts are cholesterol- and sphingolipid-enriched microdomains of the plasma membrane (PM) that organize many signal transduction pathways. Interactions between cholesterol and saturated lipids lead to patches of liquid-ordered membrane (rafts) phase...
Journal Articles
J Exp Biol (2002) 205 (3): 415–425.
Published: 1 February 2002
..., coincident with the onset of breathing. The DSP/PL ratio increased after pipping, whereas cholesterol levels (Chol) increased prior to pipping. This resulted in a decrease in the Chol/PL and Chol/DSP ratios after pipping. Thus, TTF-1 and SP-B appear to be highly conserved within the vertebrates. Maturation...