scholarly journals Pamidronate Prevents Bone Loss and Decreased Bone Strength in Adult Female and Male Rats Fed an Isocaloric Low-Protein Diet

2005 ◽  
Vol 20 (8) ◽  
pp. 1365-1371 ◽  
Author(s):  
Samia Mekraldi ◽  
Anne Toromanoff ◽  
René Rizzoli ◽  
Patrick Ammann
Keyword(s):  
Bone Loss ◽  
Bone Strength ◽  
Adult Female ◽  
Protein Diet ◽  
Male Rats ◽  
Low Protein Diet ◽  
Low Protein

THE EFFECT OF PARATHION ON THE LIVER AND KIDNEY CARBOXYLESTERASES AND THE PLASMA ACETYLCHOLINESTERASES OF RATS FED NUTRITIONALLY DEFICIENT DIETS

1966 ◽  
Vol 44 (6) ◽  
pp. 809-817 ◽  
Author(s):  
Sheila I. Read ◽  
E. J. Middleton ◽  
W. P. Mckinley
Keyword(s):  
Control Diet ◽  
Acetylcholinesterase Activity ◽  
Protein Diet ◽  
Female Rats ◽  
Male Rats ◽  
Low Protein Diet ◽  
Male And Female ◽  
Low Protein ◽  
Male And Female Rats ◽  
Liver And Kidney

Female rats were fed diets low in minerals, vitamins, or protein, or a control diet, both alone and supplemented with 10 parts per million (p.p.m.) parathion for 3 weeks. Male and female rats were fed control and tow-vitamin diets both with and without parathion supplementation (0–10 p.p.m.) for 3 weeks. The liver and kidney carboxylesterases (EC 3.1.1.1.), and the plasma acetylcholinesterases (EC 3.1.1.7.) of the male rats, were measured.In the female rats, a low-mineral diet resulted in an increase of carboxylesterases in the liver and kidney; a low-vitamin diet caused a marked increase in liver carboxylesterases but had no effect on the carboxylesterases of the kidney. Parathion at 10 p.p.m. in all diets greatly reduced the liver carboxylesterases but had less effect on kidney carboxylesterases, except in the case of the low-protein diet, for which the reduction was similar to that in the liver. Varying amounts of parathion added to the low-vitamin diet reduced the liver and kidney carboxylesterases, but to a less extent than when added to the control diet.The liver carboxylesterases of male rats were inhibited approximately 50% by 2 p.p.m. parathion in the control diet and by 4 p.p.m. parathion in the low-vitamin diet. However, inhibition of plasma acetylcholinesterase and kidney carboxylesterases was not marked until the 10 p.p.m. parathion level was fed. The acetylcholinesterase activity of the plasma of male rats did not decrease until the level of liver carboxylesterases was very low.

Weanling Rats Exposed to Maternal Low-Protein Diets during Discrete Periods of Gestation Exhibit Differing Severity of Hypertension

1996 ◽  
Vol 91 (5) ◽  
pp. 607-615 ◽  
Author(s):  
Simon C. Langley-Evans ◽  
Simon J. M. Welham ◽  
Rachel C. Sherman ◽  
Alan A. Jackson
Keyword(s):  
Blood Pressure ◽  
Control Diet ◽  
Plasma Renin ◽  
Late Gestation ◽  
Protein Diet ◽  
Male Rats ◽  
Low Protein Diet ◽  
Fetal Exposure ◽  
Low Protein ◽  
Protein Diets

1. In the rat, hypertension is induced by fetal exposure to maternal low-protein diets. The effect on blood pressure of undernutrition before conception and during discrete periods in early, mid or late pregnancy was assessed using an 18% casein (control) diet and a 9% casein diet to apply mild protein restriction. 2. The offspring of rats fed 9% casein developed raised blood pressure by weaning age. Feeding a low-protein diet before conception was not a prerequisite for programming of hypertension. 3. Hypertension was observed in rats exposed to low protein during the following gestational periods: days 0–7, days 8–14 and days 15–22. Blood pressure increases elicited by these discrete periods of undernutrition were lower than those induced by feeding a low-protein diet throughout pregnancy. The effect in early gestation was significant only in male animals. Post-natal growth of male rats exposed to low-protein diets was accelerated, but kidneys were small in relation to body weight. 4. Biochemical indices of glucocorticoid action in liver, hippocampus, hypothalamus and lung were elevated in rats exposed to low-protein diets in utero. The apparent hypersensitivity to glucocorticoids was primarily associated with undernutrition in mid to late gestation. 5. Plasma renin activity was elevated in rats exposed to 9% casein over days 15–22 of gestation. Animals undernourished over days 0–7 and 8–14 produced pups with lower plasma angiotensin II concentrations at weaning. 6. Fetal exposure to maternal low-protein diets for any period in gestation may programme hypertension in the rat. Alterations to renal structure, renal hormone action or the hypothalamic—pituitary-adrenal axis may all play a role in the programming phenomenon, either independently or in concert.

scholarly journals Reduced Endothelial Vascular Function in Adult Female Offspring of Rats Fed with Low Protein Diet During Pregnancy.

2008 ◽  
Vol 78 (Suppl_1) ◽  
pp. 200-200
Author(s):  
Chandrasekhar Yallampalli ◽  
Rebakah Elkins ◽  
Uma Yallampalli ◽  
Kunjureddiar Sathishkumar
Keyword(s):  
Adult Female ◽  
Vascular Function ◽  
Female Offspring ◽  
Protein Diet ◽  
Low Protein Diet ◽  
Low Protein

Low protein diet during gestation and lactation increases food reward seeking but does not modify sucrose taste reactivity in adult female rats

2016 ◽  
Vol 49 (1) ◽  
pp. 50-59 ◽  
Author(s):  
Amanda Alves Marcelino Silva ◽  
Mayara Matias Oliveira ◽  
Taisy Cinthia Ferro Cavalcante ◽  
Larissa Cavalcanti Amaral Almeida ◽  
Julliet Araújo Souza ◽  
...  
Keyword(s):  
Adult Female ◽  
Food Reward ◽  
Protein Diet ◽  
Female Rats ◽  
Low Protein Diet ◽  
Taste Reactivity ◽  
Reward Seeking ◽  
Low Protein

scholarly journals Effect Royal Jelly against Low Protein Diet Induced Hepatic Damage in Male Rats

2019 ◽  
Vol 9 (1) ◽  
pp. 02-06 ◽  
Author(s):  
Roshankhah Shiva ◽  
Arash Ziapoor ◽  
Cyrus Jalili ◽  
Mohammad Reza Salahshoor
Keyword(s):  
Royal Jelly ◽  
Hepatic Damage ◽  
Protein Diet ◽  
Male Rats ◽  
Low Protein Diet ◽  
Low Protein

Factors in the reduced food intake of rats fed a low-protein diet

1968 ◽  
Vol 46 (1) ◽  
pp. 19-23 ◽  
Author(s):  
J. R. Beaton ◽  
V. Feleki ◽  
J. A. F. Stevenson
Keyword(s):  
Food Intake ◽  
Protein Diet ◽  
Male Rats ◽  
Low Protein Diet ◽  
Fasting Period ◽  
Thermostatic Control ◽  
Low Protein ◽  
Wistar Strain ◽  
Glucose Injection ◽  
Colonic Temperature

Male rats of the Wistar strain were fed either a control (20% casein) or a low-protein (5% casein) diet. Following the intraperitoneal injection of glucose solution it was observed from the blood glucose curve that low-protein fed rats had a delayed or impaired utilization of this carbohydrate. Resting oxygen consumption was not significantly different, and after glucose injection the slight increase in both groups was not significant. On refeeding after fasting, the colonic temperature of low-protein fed rats rose to a greater extent than did that of controls. Administration of protamine zinc insulin (PZI) decreased colonic temperature during fasting particularly in low-protein fed animals, and also during refeeding following a brief fasting period. From the results of these several experiments, it would appear that low-protein fed rats may have (a) an impairment in utilization of carbohydrate, and (b) a defect in immediate energy dissipation or an increased rate of energy production from ingested food. These two abnormalities may contribute to the reduced food intake of such animals. The association of a greater increase in colonic temperature on feeding and the hypophagia of rats fed a low-protein diet, as well as the hypothermic effect of PZI associated with an increase in food intake are suggestive of a thermostatic control of food intake in addition to a glucostatic control.

scholarly journals Low protein diet compromises the recovery of lactation-induced bone loss in female mouse dams with no effects on skeletal muscles

Bone Reports ◽  
2020 ◽  
Vol 13 ◽  
pp. 100685
Author(s):  
Ioannis Kanakis ◽  
Moussira Alameddine ◽  
Mattia Scalabrin ◽  
Rob van ’tHof ◽  
Susan Ozanne ◽  
...  
Keyword(s):  
Bone Loss ◽  
Female Mouse ◽  
Skeletal Muscles ◽  
Protein Diet ◽  
Low Protein Diet ◽  
Low Protein

scholarly journals Low-protein diet in puberty impairs testosterone output and energy metabolism in male rats

2018 ◽  
Vol 237 (3) ◽  
pp. 243-254 ◽  
Author(s):  
Júlio Cezar de Oliveira ◽  
Egberto Gaspar de Moura ◽  
Rosiane Aparecida Miranda ◽  
Ana Maria Praxedes de Moraes ◽  
Luiz Felipe Barella ◽  
...  
Keyword(s):  
Pancreatic Islet ◽  
Hpa Axis ◽  
Visceral Fat ◽  
Protein Diet ◽  
Male Rats ◽  
Low Protein Diet ◽  
Low Protein ◽  
Insulin Homeostasis ◽  
Normal Protein Diet

We examined the long-term effects of protein restriction during puberty on the function of hypothalamic–pituitary–adrenal (HPA) and hypothalamic–pituitary–gonadal (HPG) axes in male rats. Male Wistar rats from the age of 30 to 60 days were fed a low-protein diet (4%, LP). A normal-protein diet (20.5%) was reintroduced to rats from the age of 60 to 120 days. Control rats were fed a normal-protein diet throughout life (NP). Rats of 60 or 120 days old were killed. Food consumption, body weight, visceral fat deposits, lipid profile, glycemia, insulinemia, corticosteronemia, adrenocorticotropic hormone (ACTH), testosteronemia and leptinemia were evaluated. Glucose-insulin homeostasis, pancreatic-islet insulinotropic response, testosterone production and hypothalamic protein expression of the androgen receptor (AR), glucocorticoid receptor (GR) and leptin signaling pathway were also determined. LP rats were hypophagic, leaner, hypoglycemic, hypoinsulinemic and hypoleptinemic at the age of 60 days (P < 0.05). These rats exhibited hyperactivity of the HPA axis, hypoactivity of the HPG axis and a weak insulinotropic response (P < 0.01). LP rats at the age of 120 days were hyperphagic and exhibited higher visceral fat accumulation, hyperleptinemia and dyslipidemia; lower blood ACTH, testosterone and testosterone release; and reduced hypothalamic expression of AR, GR and SOCS3, with a higher pSTAT3/STAT3 ratio (P < 0.05). Glucose-insulin homeostasis was disrupted and associated with hyperglycemia, hyperinsulinemia and increased insulinotropic response of the pancreatic islets. The cholinergic and glucose pancreatic-islet responses were small in 60-day-old LP rats but increased in 120-day-old LP rats. The hyperactivity of the HPA axis and the suppression of the HPG axis caused by protein restriction at puberty contributed to energy and metabolic disorders as long-term consequences.

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