scholarly journals Hepatic structural alteration in adult programmed offspring (severe maternal protein restriction) is aggravated by post-weaning high-fat diet

2007 ◽  
Vol 98 (6) ◽  
pp. 1159-1169 ◽  
Author(s):  
Vanessa Souza-Mello ◽  
Carlos A. Mandarim-de-Lacerda ◽  
Márcia B. Aguila

The present study aimed to evaluate the effects of a post-weaning high-fat (HF) diet upon hepatic morphology in rats subjected to perinatal protein restriction. Pregnant Wistar rats were assigned to a normal-protein diet (NP; with 19 % of protein) or a low-protein (LP) diet (with 5 % of protein). At weaning, the following groups were formed: NP and NP-HF, males and females, which were fed standard chow and an HF diet, respectively. Likewise, LP rat dams originated LP and LP-HF offspring, both sexes. Euthanasia was performed at 6 months of age. Three-way ANOVA disclosed a three-factor interaction among sex, perinatal diet and HF diet in relation to body mass, retroperitoneal fat pad, liver mass:tibia length ratio, binucleation rate and hepatocyte area at 6 months old (P < 0·05). The high-fat diet intensified the effects of perinatal protein restriction concerning systolic blood pressure, genital fat pad and hepatocyte number (P < 0·05; two-way ANOVA). Furthermore, higher steatosis rates and insulin and leptin concentrations were found in males fed on the HF diet, indicating a sex–post-weaning diet interaction (P < 0·05; two-way ANOVA). Fetal programming and HF diet as a single stimulus caused mild hypertension at 3 months, an important reduction in hepatocyte number as well as stage 1 steatosis at 6 months. However, hypertension and hepatocyte number deficit were worsened and grade 2 steatosis occurred after exposure to the HF diet. All of these serve to highlight the paramount importance of intra-uterine conditions and postnatal diet quality when it comes to the pathogenesis of chronic diseases.

2017 ◽  
Vol 2017 ◽  
pp. 1-7 ◽  
Author(s):  
Camila Lubaczeuski ◽  
Luciana Mateus Gonçalves ◽  
Jean Franciesco Vettorazzi ◽  
Mirian Ayumi Kurauti ◽  
Junia Carolina Santos-Silva ◽  
...  

The aim of this study was to investigate the effect of subdiaphragmatic vagotomy on insulin sensitivity, secretion, and degradation in metabolic programmed mice, induced by a low-protein diet early in life, followed by exposure to a high-fat diet in adulthood. Weaned 30-day-old C57Bl/6 mice were submitted to a low-protein diet (6% protein). After 4 weeks, the mice were distributed into three groups: LP group, which continued receiving a low-protein diet; LP + HF group, which started to receive a high-fat diet; and LP + HFvag group, which underwent vagotomy and also was kept at a high-fat diet. Glucose-stimulated insulin secretion (GSIS) in isolated islets, ipGTT, ipITT, in vivo insulin clearance, and liver expression of the insulin-degrading enzyme (IDE) was accessed. Vagotomy improved glucose tolerance and reduced insulin secretion but did not alter adiposity and insulin sensitivity in the LP + HFvag, compared with the LP + HF group. Improvement in glucose tolerance was accompanied by increased insulinemia, probably due to a diminished insulin clearance, as judged by the lower C-peptide : insulin ratio, during the ipGTT. Finally, vagotomy also reduced liver IDE expression in this group. In conclusion, when submitted to vagotomy, the metabolic programmed mice showed improved glucose tolerance, associated with an increase of plasma insulin concentration as a result of insulin clearance reduction, a phenomenon probably due to diminished liver IDE expression.


Author(s):  
Athesh K ◽  
Joshi G

Objective: To study the anti-obesity potential of aqueous rhizome extract of Acoruscalamus Linn. (AREAC)in high fat diet fed obese rats.Methods: Adult strain male Wistar rats used in this study were fed with High Fat Diet (HFD) for 60 days. For the treatment groups,AREAC was administered in a dose levels of100, 200 and 300 mg/kgbw, orally once a day along with HFD. Rats fed with normal pellet chow were served as normal control. The effect of AREAC on physical parameterssuch as body weight, organ weight, fat pad weights and various biochemical parameterslike serum glucose, insulin, leptin,lipid profile, liver markers, kidney markers and oxidative stress markers were analysed.In-vitro pancreatic lipase inhibition assay of AREAC was also studied.Results: Data of in-vivo studies revealedsignificant (p<0.05) reduction in percentage body weight gain, organ weights, fat pad weights and levels of serum glucose, insulin and leptin after treatment with AREAC in a dose dependent manner. Also, administration of AREAC significantly inhibited the increases in the concentrations of triglycerides, total cholesterol, LDL-cholesterol, VLDL-cholesterol, free-fatty acid and phospholipids in a dose dependent manner whereas, the level of HDL-cholesterol was found to be elevated on treatment. Moreover, on treatment with test drug,the elevated levels of serum liver and kidney markerssuch as AST, ALT, ALP, urea, creatinine were also brought back to near normalcy. Antioxidant status was found to be enhanced in liver tissues after treatment.In-vitro studies showed significant inhibition in the activity of pancreatic lipaseby AREAC.Conclusion: The data of the results obtained clearly depicted that AREAC was found to have pronounced anti-obesity activity particularly at the dose levels of 300 mg/kg bw.Key Words: Obesity, High Fat Diet, Leptin, AcoruscalamusLinn., Orlistat.  


2019 ◽  
Vol 47 (3) ◽  
pp. 412-421
Author(s):  
Sávio dos Santos Barbosa ◽  
Ana Paula da Fonseca Arcoverde Cabr Mello ◽  
Viviane de Oliveira Nogueira ◽  
Ially Fabiane da Silva ◽  
Palloma Emanuelle Dornelas de Melo ◽  
...  

2019 ◽  
Vol 3 (Supplement_1) ◽  
Author(s):  
Jihye Lee ◽  
Seong-Ho Lee

Abstract Objectives Patchouli alcohol is a sesquiterpene alcohol found in Pogostemon cablin. Recently, we observed that patchouli alcohol reduced lipid accumulation in differentiated 3T3-L1 adipocytes and increased glucose uptake in differentiated C2C12 myocytes. This study was designed to investigate anti-obese and anti-diabetic activities of patchouli alcohol using high fat diet-induced obese mouse model. Methods Forty-eight 5-week old C57BL/6 J male mice were assigned into four groups and fed with 1) normal diet (control), 2) high fat diet, 3) high fat diet with gavaging 25 mg of patchouli alcohol/kg body weight and 4) high fat diet with gavaging 50 mg of patchouli alcohol/kg body weight. High fat diet or control diets were provided to each treatment group for four weeks and then different doses of patchouli alcohol (0, 25 or 50 mg/kg body weight) was orally administered for following 8 weeks with the diet. At age of week 17, all animals were sacrificed, fat tissues were collected, and tissue weight was measured. In addition, twenty C57BL/6 J male mice were assigned into the same treatment groups above. At the end of the 8 weeks (age of week 17), the mice were fasted for 12 h and the oral glucose tolerance test was performed after intraperitoneal injection of 2 g of anhydrous glucose/kg body weight. The blood was collected from tail at 0, 15, 30, 90 and 120 min after injection and blood glucose level was analyzed using glucose meter. Results Treatment of patchouli alcohol (50 mg/kg body weight) significantly reduced body weight and accumulation of body fat pads which was highly induced by feeding of high fat diet. An analysis of individual fat pad weights (expressed as mg weight of fat pad/g body weight) revealed a significant decrease of epididymal and retroperitoneal fat pad in patchouli alcohol-treated mice whereas brown adipose tissue were not significantly altered. And, slightly improved glucose tolerance was observed at 90 and 120 minutes after glucose injection in mice treated with patchouli alcohol (50 mg/kg body weight) compared to those fed with high fat diet alone. Conclusions We propose a potential use of patchouli alcohol as an anti-obesity compound in obese population. Funding Sources NIFA Hatch grant. Supporting Tables, Images and/or Graphs


1999 ◽  
Vol 86 (4) ◽  
pp. 1374-1380 ◽  
Author(s):  
Deborah A. Podolin ◽  
Yuren Wei ◽  
Michael J. Pagliassotti

The purpose of the present study was to determine the effects of diet composition and exercise on glycerol and glucose appearance rate (Ra) and on nonglycerol gluconeogenesis (Gneo) in vivo. Male Wistar rats were fed a high-starch diet (St, 68% of energy as cornstarch, 12% corn oil) for a 2-wk baseline period and then were randomly assigned to one of four experimental groups: St ( n = 7), high-fat (HF; 35% cornstarch, 45% corn oil; n = 8), St with free access to exercise wheels (StEx; n = 7), and HF with free access to exercise wheels (HFEx; n = 7). After 8 wk, glucose Rawhen using [3-3H]glucose, glycerol Rawhen using [2H5]glycerol (estimate of whole body lipolysis), and [3-13C]alanine incorporation into glucose (estimate of alanine Gneo) were determined. Body weight and fat pad mass were significantly ( P < 0.05) decreased in exercise vs. sedentary animals only. The average amount of exercise was not significantly different between StEx (3,212 ± 659 m/day) and HFEx (3,581 ± 765 m/day). The ratio of glucose to alanine enrichment and absolute glycerol Ra(μmol/min) were higher ( P < 0.05) in HF and HFEx compared with St and StEx rats. In separate experiments, the ratio of3H in C-2 to C-6 of glucose from3H2O (estimate of Gneo from pyruvate) was also higher ( P < 0.05) in HF ( n = 5) and HFEx ( n = 5), compared with St ( n = 5) and StEx ( n = 5) rats. Voluntary wheel running did not significantly increase estimated alanine or pyruvate Gneo or absolute glycerol Ra. Voluntary wheel running increased ( P< 0.05) glycerol Rawhen normalized to fat pad mass. These data suggest that a high-fat diet can increase in vivo Gneo from precursors that pass through pyruvate. They also suggest that changes in the absolute rate of glycerol Ramay contribute to the high-fat diet-induced increase in Gneo.


2015 ◽  
Vol 4 ◽  
Author(s):  
S. Ware ◽  
J.-P. Voigt ◽  
S. C. Langley-Evans

AbstractFetal exposure to maternal undernutrition has lifelong consequences for physiological and metabolic function. Maternal low-protein diet is associated with an age-related phenotype in rats, characterised by a period of resistance to development of obesity in early adulthood, giving way to an obesity-prone, insulin-resistant state in later adulthood. Offspring of rats fed a control (18 % casein) or low-protein (9 % casein; LP) diet in pregnancy were challenged with a high-fat diet at 9 months of age. To assess whether other maternal factors modulated the programming effects of nutrition, offspring were studied from young (2–4 months old) and older (6–9 months old) mothers. Weight gain with a high-fat diet was attenuated in male offspring of older mothers fed LP (interaction of maternal age and diet; P = 0·011) and adipose tissue deposition was lower with LP feeding in both males and females (P < 0·05). Although the resistance to weight gain and adiposity was partially explained by lower energy intake in offspring of LP mothers (P < 0·001 males only), it was apparent that energy expenditure must be influenced by maternal diet and age. Assessment of locomotor activity indicated that energy expenditure associated with physical activity was unlikely to explain resistance to weight gain, but showed that offspring of older mothers were more anxious than those of younger mothers, with more rearing observed in a novel environment and on the elevated plus-maze. The data showed that in addition to maternal undernutrition, greater maternal age may influence development and long-term body composition in the rat.


1942 ◽  
Vol 75 (2) ◽  
pp. 179-189 ◽  
Author(s):  
David P. Earle ◽  
Joseph Victor

1. The effect of 9 different diets on the liver lesions resulting from excess dietary cystine has been studied in 130 rats. 2. The incidence and severity of each of the following liver lesions were varied by changes in the composition of diets containing 5 or 10 per cent cystine: (a) Hemorrhage was least severe with low fat diets. (b) Necrosis was most severe with synthetic diets. (c) Cirrhosis was delayed by a diet high in lard, 20 per cent, and cod liver oil, 5 per cent, but not by a diet high in butter, 25 per cent. (d) Fatty infiltration was found consistently only with low protein, high fat diets. In other words, the pathogenesis of the liver lesion due to excess dietary cystine can be modified by diet. 3. In the presence of cystine as 5 per cent of a low protein, high fat diet, 1 per cent choline inhibited fatty infiltration but did not protect the liver against damage by cystine. 4. In these experiments there was no apparent correlation between fatty infiltration of the liver and the incidence or degree of cirrhosis.


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