scholarly journals Maternal low protein diet leads to placental angiogenic compensation via dysregulated M1/M2 macrophages and TNFα expression in Sprague‐Dawley rats

2016 ◽  
Vol 30 (S1) ◽  
Author(s):  
Emilie E Vomhof‐Dekrey ◽  
James N Roemmich ◽  
Kate J Claycombe
Keyword(s):  
Protein Diet ◽  
Low Protein Diet ◽  
M2 Macrophages ◽  
Sprague Dawley ◽  
Low Protein ◽  
Sprague Dawley Rats

scholarly journals Maternal low protein diet leads to placental angiogenic compensation via dysregulated M1/M2 macrophages and TNFα expression in Sprague-Dawley rats

2016 ◽  
Vol 118 ◽  
pp. 9-17 ◽  
Author(s):  
Emilie Vomhof-DeKrey ◽  
Diane Darland ◽  
Othman Ghribi ◽  
Amy Bundy ◽  
James Roemmich ◽  
...  
Keyword(s):  
Protein Diet ◽  
Low Protein Diet ◽  
M2 Macrophages ◽  
Sprague Dawley ◽  
Low Protein ◽  
Sprague Dawley Rats

DOMINANT EFFECT OF SUPPLEMENTED-SUCROSE ON THE LOW PROTEIN DIET-INDUCED INCREASE IN BLOOD PRESSURE OF SPRAGUE-DAWLEY RATS

2001 ◽  
Vol 23 (7) ◽  
pp. 569-578
Author(s):  
Michiyo Endoh ◽  
Asako Kunieda ◽  
Takashi Yoneyama ◽  
Kazuhisa Ohishi ◽  
Akira Hishida ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Protein Diet ◽  
Low Protein Diet ◽  
Sprague Dawley ◽  
Dominant Effect ◽  
Low Protein ◽  
Sprague Dawley Rats

A Maternal Low-protein Diet during Gestation Induces Hepatic Autophagy-related Gene Expression in a Sex-specific Manner in Sprague-Dawley Rats

2021 ◽  
pp. 1-29
Author(s):  
Mingzhu Cai ◽  
Jie Zhang ◽  
Hong Chen ◽  
Yuan-Xiang Pan
Keyword(s):  
Gene Expression ◽  
Transcription Factors ◽  
Control Diet ◽  
Protein Diet ◽  
Low Protein Diet ◽  
Related Gene ◽  
Sprague Dawley ◽  
Protein Levels ◽  
Low Protein ◽  
Sprague Dawley Rats

Abstract This study investigates the mechanism by which maternal protein restriction induces hepatic autophagy-related gene expression in the offspring of rats. Pregnant Sprague-Dawley rats were fed either a control diet (C, 18% energy from protein) or a low-protein diet (LP, 8.5% energy from protein) during gestation, followed by the control diet during lactation and post-weaning. Liver tissue was collected from the offspring at postnatal day 38 and divided into four groups according to sex and maternal diet (F-C, F-LP, M-C, and M-LP) for further analysis. Autophagy-related mRNA and protein levels were determined by real-time PCR and Western blotting, respectively. In addition, chromatin immunoprecipitation (ChIP) was performed to investigate the interactions between transcription factors and autophagy-related genes. Protein levels of p-eIF2a and ATF4 were increased only in the female offspring born to dams fed the LP diet. Correlatively, the mRNA expression of hepatic autophagy-related genes including Map1lc3b, P62/Sqstm1, Becn1, Atg3, Atg7, and Atg10 was significantly greater in the F-LP group than in the F-C group. Furthermore, ChIP results showed greater ATF4 and C/EBP homology protein (CHOP) binding at the regions of a set of autophagy-related genes in the F-LP group than in the F-C group. Our data demonstrated that a maternal LP diet transcriptionally programmed hepatic autophagy-related gene expression only in female rat offspring. This transcriptional program involved the activation of the eIF2α/ATF4 pathway and intricate regulation by transcription factors ATF4 and CHOP.

FACTORS IN THE REDUCED SURVIVAL TIME DURING STARVATION IN THE COLD OF RATS PREVIOUSLY FED A LOW-PROTEIN DIET

1964 ◽  
Vol 42 (4) ◽  
pp. 533-545 ◽  
Author(s):  
J. R. Beaton ◽  
V. Feleki ◽  
J. A. F. Stevenson
Keyword(s):  
Oxygen Consumption ◽  
Food Consumption ◽  
Water Loss ◽  
Wistar Rats ◽  
Protein Diet ◽  
Low Protein Diet ◽  
Sprague Dawley ◽  
Low Protein ◽  
Sprague Dawley Rats ◽  
Male Wistar Rats

Male Wistar rats fed a low-protein diet (5% by weight) did not withstand subsequent deprivation of food at 5 °C or 23 °C as long as controls that had been fed a 20% protein diet isocalorically. This was also true in Sprague–Dawley rats which were studied only at 5 °C. This effect of the low-protein diet was not attributable to differences in food consumption, or in "resting" oxygen consumption. The rats fed low-protein had somewhat less fat when deprived of food but, perhaps more importantly, appeared to use less of their reserves of energy during food deprivation. Apparent water loss and thus dehydration appeared to be greater in these animals.

scholarly journals Maternal low-protein diet causes body weight loss in male, neonate Sprague–Dawley rats involving UCP-1-mediated thermogenesis

2015 ◽  
Vol 26 (7) ◽  
pp. 729-735 ◽  
Author(s):  
Kate J. Claycombe ◽  
Emilie E. Vomhof-DeKrey ◽  
James N. Roemmich ◽  
Turk Rhen ◽  
Othman Ghribi
Keyword(s):  
Weight Loss ◽  
Body Weight ◽  
Body Weight Loss ◽  
Protein Diet ◽  
Low Protein Diet ◽  
Sprague Dawley ◽  
Low Protein ◽  
Sprague Dawley Rats ◽  
Male Neonate

Effect of Dietary Protein Restriction on the Development of Renal Failure after Subtotal Nephrectomy in Rats

1983 ◽  
Vol 65 (4) ◽  
pp. 399-406 ◽  
Author(s):  
A. M. El-Nahas ◽  
H. Paraskevakou ◽  
S. Zoob ◽  
A. J. Rees ◽  
D. J. Evans
Keyword(s):  
Renal Failure ◽  
Body Weight ◽  
Dietary Protein ◽  
Normal Diet ◽  
Protein Diet ◽  
Low Protein Diet ◽  
Glomerular Sclerosis ◽  
Sprague Dawley ◽  
Subtotal Nephrectomy ◽  
Low Protein

1. We have examined the effect of a low protein diet on the development of glomerular sclerosis and progressive renal failure after subtotal nephrectomies in rats. 2. Two groups of male Sprague-Dawley rats were studied after five-sixths nephrectomy; group 1 were maintained on a normal diet (13.5 g day−1 kg−1 body weight) and group 2 were fed with a low protein diet (6 g day−1 kg−1 body weight). 3. Rats maintained on a low protein diet survived for longer, and had significantly less glomerular sclerosis and significantly greater glomerular filtration rates when the experiment ended after 7 months. 4. We conclude that dietary protein influences favourably the development of glomerular scarring and renal failure after subtotal nephrectomy in rats.

scholarly journals Calcitropic Hormones and IGF-I Are Influenced by Dietary Protein

Endocrinology ◽  
2011 ◽  
Vol 152 (5) ◽  
pp. 1839-1847 ◽  
Author(s):  
Victor Dubois-Ferrière ◽  
Tara C. Brennan ◽  
Romain Dayer ◽  
René Rizzoli ◽  
Patrick Ammann
Keyword(s):  
Dietary Protein ◽  
Protein Diet ◽  
Female Rats ◽  
Low Protein Diet ◽  
Sprague Dawley ◽  
Trabecular Thickness ◽  
Low Protein ◽  
Calcitropic Hormones ◽  
Maximal Load ◽  
Igf I

Elderly men and women with protein deficiencies have low levels of circulating IGF-I, and it is likely this contributes to reduced bone formation and increased bone resorption. We hypothesized that calcitropic hormones are involved in this effect and are affected by dietary protein. We therefore investigated the influence of a low-protein diet on the PTH-1,25-dihydroxyvitamin D3 [1,25(OH)2D3] axis and IGF-I in rats, using pamidronate to block resorption that normally contributes to mineral homeostasis. We fed 6-month-old Sprague Dawley female rats isocaloric diets containing 2.5% or 15% casein for 2 wk. Pamidronate was then administered sc (0.6 mg/kg/) for 5 d. Blood samples were collected at different time points. Serum 1,25(OH)2D3, IGF-I, PTH, calcium, and phosphorus were determined in all rats; vertebral bone strength and histomorphometric analysis were performed in rats subject to the longest low-protein diets. We found 2 wk of low protein increased PTH levels, decreased 1,25(OH)2D3, calcium, and IGF-I, suggesting that increased PTH compensates for low-protein-induced decreases in 1,25(OH)2D3. Pamidronate augmented the increased PTH after 8 wk of low protein and prevented the 1,25(OH)2D3 decrease. IGF-I remained low. Protein malnutrition induced decreases in relative bone volume and trabecular thickness, which was prevented by pamidronate. Maximal load was reduced by protein restriction, but rescued by pamidronate. In summary, the low protein diet resulted in hyperparathyroidism, a reduction in circulating levels of IGF-I, and reduced 1,25(OH)2D3 despite hyperparathyroidism. Blocking resorption resulted in further increases in PTH and improved microarchitecture and biomechanical properties, irrespective of vitamin D status or protein intake.

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