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Titolo:
EFFECT OF NEUTRAL LIPIDS ON FLUIDITY OF CORPORA-LUTEA PLASMA-MEMBRANES AND THE ACCESSIBILITY OF LH HCG RECEPTOR/
Autore:
SCSUKOVA S; KOLENA J;
Indirizzi:
SLOVAK ACAD SCI,INST EXPTL ENDOCRINOL,VLARSKA 3 BRATISLAVA 83306 SLOVAKIA
Titolo Testata:
General physiology and biophysics
fascicolo: 6, volume: 14, anno: 1995,
pagine: 503 - 513
SICI:
0231-5882(1995)14:6<503:EONLOF>2.0.ZU;2-N
Fonte:
ISI
Lingua:
ENG
Soggetto:
VENTRAL PROSTATIC MEMBRANES; BINDING-SITES INVITRO; MODULATION; MICROVISCOSITY; CHOLESTEROL; TRANSPORT; CYCLASE;
Keywords:
MEMBRANE FLUIDITY; LIPIDS; CHOLESTEROL; LH/HCG RECEPTOR;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
26
Recensione:
Indirizzi per estratti:
Citazione:
S. Scsukova e J. Kolena, "EFFECT OF NEUTRAL LIPIDS ON FLUIDITY OF CORPORA-LUTEA PLASMA-MEMBRANES AND THE ACCESSIBILITY OF LH HCG RECEPTOR/", General physiology and biophysics, 14(6), 1995, pp. 503-513

Abstract

Porcine corpora lutea plasma membranes were treated with neutral lipids from hen egg yolk and a special mixture consisting of 70% neutral lipids, 20% phosphatidylcholine and 10% phosphatidylethanolamine. Membrane fluidity, as determined by fluorescence polarization of DPH, significantly increased already after 30 min of incubation of the membraneswith Lipids. The fluidization effect of neutral lipids increased withthe increasing concentration of lipids up to a concentration of 1 mg.ml(-1). In experiments with plasma membranes labelled with [H-3]cholesterol the increase in membrane fluidity was found to be partially due to a decrease of membrane cholesterol concentration. The most potent concentration of neutral lipids in extracting cholesterol was 2 mg.ml(-1). The increase in fluidity of plasma membranes caused by neutral lipids and lipid mixture decreased the accessibility of the LH/hCG receptor.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 19/01/20 alle ore 00:48:11