REGULATION OF FOOD AND WATER INTAKE IN RATS AS RELATED TO PLASMA OSMOLARITY AND VOLUME

被引:65
作者
GUTMAN, Y
KRAUSZ, M
机构
[1] Department of Pharmacology, The Hebrew University-Hadassah Medical School, Jerusalem
关键词
Drinking; Eating; Food deprivation; Hypovolemia; Plasma osmolarity; Plasma volume; Water deprivation;
D O I
10.1016/0031-9384(69)90181-4
中图分类号
B84 [心理学];
学科分类号
04 ; 0402 ;
摘要
Food intake was suppressed in rats by subcutaneous injection of hypertonic saline while intraperitoneal loading of isotonic saline increased food consumption. Hypovolemia induced by subcutaneous injection of polyethylene glycol (Carbowax, M-20), decreased food intake in rats considerably. Free access to water under food deprivation caused significant dilution of plasma while free access to food under water deprivation resulted in hypertonicity of plasma. Feeding schedules of 23 hr food and 1 hr water vs 23 hr water and 1 hr food, caused plasma osmolarity to change from 286 mOsm/kg to 318 mOsm/kg. These wide variations are discussed in relation to the interaction of plasma osmolarity with food and water intake. © 1969.
引用
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页码:311 / &
相关论文
共 9 条
[1]   RELATIONSHIP BETWEEN WATER AND FOOD INGESTION IN RAT [J].
CIZEK, LJ ;
NOCENTI, MR .
AMERICAN JOURNAL OF PHYSIOLOGY, 1965, 208 (04) :615-&
[2]   SEX DIFFERENCE IN FLUID EXCHANGE DURING FOOD DEPRIVATION IN RABBIT [J].
CIZEK, LJ ;
NOCENTI, MR ;
OPARIL, S .
ENDOCRINOLOGY, 1966, 78 (02) :291-&
[3]   DRINKING BY RATS DEPLETED OF BODY FLUID WITHOUT INCREASE IN OSMOTIC PRESSURE [J].
FITZSIMONS, J .
JOURNAL OF PHYSIOLOGY-LONDON, 1961, 159 (02) :297-&
[4]   EFFECTS OF SLOW INFUSIONS OF HYPERTONIC SOLUTIONS ON DRINKING AND DRINKING THRESHOLDS IN RATS [J].
FITZSIMONS, JT .
JOURNAL OF PHYSIOLOGY-LONDON, 1963, 167 (02) :344-&
[5]   WATER EXCHANGE AND POLYURIA OF RATS DEPRIVED OF FOOD [J].
MORRISON, SD ;
MACKAY, C ;
HURLBRINK, E ;
WIER, JK ;
NICK, MS ;
MILLAR, FK .
QUARTERLY JOURNAL OF EXPERIMENTAL PHYSIOLOGY AND COGNATE MEDICAL SCIENCES, 1967, 52 (01) :51-+
[6]   CHANGES OF BLOOD VOLUME + OSMOTIC PRESSURE IN PRODUCTION OF THIRST [J].
OATLEY, K .
NATURE, 1964, 202 (493) :1341-&
[7]   AN OSMOTIC FACTOR IN THE REGULATION OF FOOD INTAKE IN THE RAT [J].
SCHWARTZBAUM, JS ;
WARD, HP .
JOURNAL OF COMPARATIVE AND PHYSIOLOGICAL PSYCHOLOGY, 1958, 51 (05) :555-560
[8]   EFFECTS OF INTRAVENOUS INJECTIONS ON EATING [J].
SMITH, MH .
JOURNAL OF COMPARATIVE AND PHYSIOLOGICAL PSYCHOLOGY, 1966, 61 (01) :11-&
[9]   EXTRACELLULAR FLUID VOLUME AND THIRST [J].
STRICKER, EM .
AMERICAN JOURNAL OF PHYSIOLOGY, 1966, 211 (01) :232-&