1
|
Gao HT, Cheng WZ, Xu Q, Shao LX. Dietary restriction reduces blood lipids and ameliorates liver function of mice with hyperlipidemia. ACTA ACUST UNITED AC 2017; 37:79-86. [DOI: 10.1007/s11596-017-1698-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2016] [Revised: 11/15/2016] [Indexed: 10/18/2022]
|
2
|
Devassy JG, Wojcik JL, Ibrahim NHM, Zahradka P, Taylor CG, Aukema HM. Mixed compared with single-source proteins in high-protein diets affect kidney structure and function differentially in obese fa/fa Zucker rats. Appl Physiol Nutr Metab 2017; 42:135-141. [PMID: 28079397 DOI: 10.1139/apnm-2016-0301] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2023]
Abstract
Questions remain regarding the potential negative effects of dietary high protein (HP) on kidney health, particularly in the context of obesity in which the risk for renal disease is already increased. To examine whether some of the variability in HP effects on kidney health may be due to source of protein, obese fa/fa Zucker rats were given HP (35% of energy from protein) diets containing either casein, soy protein, or a mixed source of animal and plant proteins for 12 weeks. Control lean and obese rats were given diets containing casein at normal protein (15% of energy from protein) levels. Body weight and blood pressure were measured, and markers of renal structural changes, damage, and function were assessed. Obesity alone resulted in mild renal changes, as evidenced by higher kidney weights, proteinuria, and glomerular volumes. In obese rats, increasing the protein level using the single, but not mixed, protein sources resulted in higher renal fibrosis compared with the lean rats. The mixed-protein HP group also had lower levels of serum monocyte chemoattractant protein-1, even though this diet further increased kidney and glomerular size. Soy and mixed-protein HP diets also resulted in a small number of damaged glomeruli, while soy compared with mixed-protein HP diet delayed the increase in blood pressure over time. Since obesity itself confers added risk of renal disease, an HP diet from mixed-protein sources that enables weight loss but has fewer risks to renal health may be advantageous.
Collapse
Affiliation(s)
- Jessay G Devassy
- a Department of Human Nutritional Sciences, University of Manitoba, Winnipeg, MB R3T 2N2, Canada
- b Canadian Centre for Agri-Food Research in Health and Medicine, Winnipeg, MB R2H 2A6, Canada
| | - Jennifer L Wojcik
- a Department of Human Nutritional Sciences, University of Manitoba, Winnipeg, MB R3T 2N2, Canada
- b Canadian Centre for Agri-Food Research in Health and Medicine, Winnipeg, MB R2H 2A6, Canada
| | - Naser H M Ibrahim
- a Department of Human Nutritional Sciences, University of Manitoba, Winnipeg, MB R3T 2N2, Canada
- b Canadian Centre for Agri-Food Research in Health and Medicine, Winnipeg, MB R2H 2A6, Canada
| | - Peter Zahradka
- a Department of Human Nutritional Sciences, University of Manitoba, Winnipeg, MB R3T 2N2, Canada
- b Canadian Centre for Agri-Food Research in Health and Medicine, Winnipeg, MB R2H 2A6, Canada
- c Department of Physiology and Pathophysiology, University of Manitoba, Winnipeg, MB R3E 0J9, Canada
| | - Carla G Taylor
- a Department of Human Nutritional Sciences, University of Manitoba, Winnipeg, MB R3T 2N2, Canada
- b Canadian Centre for Agri-Food Research in Health and Medicine, Winnipeg, MB R2H 2A6, Canada
- c Department of Physiology and Pathophysiology, University of Manitoba, Winnipeg, MB R3E 0J9, Canada
- d Children's Hospital Research Institute of Manitoba, Winnipeg, MB R3E 3P4, Canada
| | - Harold M Aukema
- a Department of Human Nutritional Sciences, University of Manitoba, Winnipeg, MB R3T 2N2, Canada
- c Department of Physiology and Pathophysiology, University of Manitoba, Winnipeg, MB R3E 0J9, Canada
- d Children's Hospital Research Institute of Manitoba, Winnipeg, MB R3E 3P4, Canada
| |
Collapse
|
3
|
Wang Y, Dellatore P, Douard V, Qin L, Watford M, Ferraris RP, Lin T, Shapses SA. High fat diet enriched with saturated, but not monounsaturated fatty acids adversely affects femur, and both diets increase calcium absorption in older female mice. Nutr Res 2016; 36:742-50. [PMID: 27262536 PMCID: PMC4919156 DOI: 10.1016/j.nutres.2016.03.002] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2015] [Revised: 02/28/2016] [Accepted: 03/01/2016] [Indexed: 02/06/2023]
Abstract
Diet induced obesity has been shown to reduce bone mineral density (BMD) and Ca absorption. However, previous experiments have not examined the effect of high fat diet (HFD) in the absence of obesity or addressed the type of dietary fatty acids. The primary objective of this study was to determine the effects of different types of high fat feeding, without obesity, on fractional calcium absorption (FCA) and bone health. It was hypothesized that dietary fat would increase FCA and reduce BMD. Mature 8-month-old female C57BL/6J mice were fed one of three diets: a HFD (45% fat) enriched either with monounsaturated fatty acids (MUFAs) or with saturated fatty acids (SFAs), and a normal fat diet (NFD; 10% fat). Food consumption was controlled to achieve a similar body weight gain in all groups. After 8wk, total body bone mineral content and BMD as well as femur total and cortical volumetric BMD were lower in SFA compared with NFD groups (P<.05). In contrast, femoral trabecular bone was not affected by the SFAs, whereas MUFAs increased trabecular volume fraction and thickness. The rise over time in FCA was greater in mice fed HFD than NFD and final FCA was higher with HFD (P<.05). Intestinal calbindin-D9k gene and hepatic cytochrome P450 2r1 protein levels were higher with the MUFA than the NFD diet (P<.05). In conclusion, HFDs elevated FCA overtime; however, an adverse effect of HFD on bone was only observed in the SFA group, while MUFAs show neutral or beneficial effects.
Collapse
Affiliation(s)
- Yang Wang
- Department of Nutritional Sciences, Rutgers University, New Brunswick, NJ, USA
| | - Peter Dellatore
- Department of Nutritional Sciences, Rutgers University, New Brunswick, NJ, USA
| | - Veronique Douard
- Department of Pharmacology and Physiology, Rutgers-New Jersey Medical School, Newark, USA
| | - Ling Qin
- Department of Orthopaedic Surgery, University of Pennsylvania, Philadelphia, PA, USA
| | - Malcolm Watford
- Department of Nutritional Sciences, Rutgers University, New Brunswick, NJ, USA
| | - Ronaldo P Ferraris
- Department of Pharmacology and Physiology, Rutgers-New Jersey Medical School, Newark, USA
| | - Tiao Lin
- Department of Orthopaedic Surgery, University of Pennsylvania, Philadelphia, PA, USA; Department of Orthopedic Surgery, First Affiliated Hospital of Sun Yat-sen University, No,58 Zhongshan 2nd Road, Guangzhou 510080, China
| | - Sue A Shapses
- Department of Nutritional Sciences, Rutgers University, New Brunswick, NJ, USA.
| |
Collapse
|