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Titolo:
EFFECT OF CHOLESTEROL CONTENT IN DIET ON CAPILLARY-FLOW OF RAT ERYTHROCYTES - PART I - GEOMETRIC AND FLOW CHARACTERISTICS
Autore:
ABUGO OO; PEDDADA RR; KELLY JF; ROTH GS; RIFKIND JM;
Indirizzi:
NIA,CELLULAR & MOL BIOL LAB,CTR GERONTOL RES,4940 EASTERN AVE BALTIMORE MD 21224 NIA,CELLULAR & MOL BIOL LAB,CTR GERONTOL RES BALTIMORE MD 21224 UNIV MARYLAND,SCH MED BALTIMORE MD 21201
Titolo Testata:
Clinical hemorheology and microcirculation
fascicolo: 6, volume: 17, anno: 1997,
pagine: 437 - 443
SICI:
1386-0291(1997)17:6<437:EOCCID>2.0.ZU;2-A
Fonte:
ISI
Lingua:
ENG
Soggetto:
RED-CELL MEMBRANES; PERMEABILITY;
Keywords:
ERYTHROCYTES; DEFORMABILITY; HIGH CHOLESTEROL DIET; CAPILLARY FLOW; CELL GEOMETRY; MECHANICAL PROPERTIES;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
19
Recensione:
Indirizzi per estratti:
Citazione:
O.O. Abugo et al., "EFFECT OF CHOLESTEROL CONTENT IN DIET ON CAPILLARY-FLOW OF RAT ERYTHROCYTES - PART I - GEOMETRIC AND FLOW CHARACTERISTICS", Clinical hemorheology and microcirculation, 17(6), 1997, pp. 437-443

Abstract

Four different groups of male Fisher rats were placed on one of the following diets for a period of one month: normal (control) diet, high cholesterol (HC) diet, high saturated fat (HF) diet and low fat (LF) diet. Subsequently, blood samples were drawn and washed in phosphate buffered saline (PBS), and the red cells were resuspended in the same buffer. These samples were introduced into a polycarbonate capillary flow system and their how characteristics observed. In addition, the meancell volumes (MCV) in isotonic PBS and the maximum swollen cell volume (MCVmax) in hypotonic PBS were determined using a Coulter counter. From these, the mean surface area (MSA) and the excess surface area (ESA) were calculated. It was found that rats on a high cholesterol diet develop erythrocyte geometric characteristics which should contribute to improved capillary flow, namely, a decreased mean cell volume and an increased excess surface area. Nevertheless, in these rats a decreased capillary flow was observed as indicated by an increase in mean cell transit time, MCTT, and an appreciable drop in the number of cells per second passing through the capillary flow system. The flow and geometric properties of the high saturated fat and low fat fed rats did not differ significantly from those of the control group.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 28/11/20 alle ore 00:17:49