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Ji T, Fang B, Wu F, Liu Y, Cheng L, Li Y, Wang R, Zhu L. Diet Change Improves Obesity and Lipid Deposition in High-Fat Diet-Induced Mice. Nutrients 2023; 15:4978. [PMID: 38068835 PMCID: PMC10708053 DOI: 10.3390/nu15234978] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2023] [Revised: 11/14/2023] [Accepted: 11/27/2023] [Indexed: 12/18/2023] Open
Abstract
The number of obese people is increasing dramatically worldwide, and one of the major causes of obesity is excess energy due to high-fat diets. Several studies have shown that reducing food and energy intake represents a key intervention or treatment to combat overweight/obesity. Here, we conducted a 12-week energy-restricted dietary intervention for high-fat diet-induced obese mice (C57BL/6J) to investigate the effectiveness of diet change in improving obesity. The results revealed that the diet change from HFD to NFD significantly reduced weight gain and subcutaneous adipose tissue weight in high-fat diet-induced obese mice, providing scientific evidence for the effectiveness of diet change in improving body weight and fat deposition in obese individuals. Regarding the potential explanations for these observations, weight reduction may be attributed to the excessive enlargement of adipocytes in the white adipose tissue of obese mice that were inhibited. Diet change significantly promoted lipolysis in the adipose tissue (eWAT: Adrb3, Plin1, HSL, and CPTA1a; ingWAT: CPT1a) and liver (reduced content of nonesterified fatty acids), and reduced lipogenesis in ingWAT (Dgat2). Moreover, the proportion of proliferative stem cells in vWAT and sWAT changed dramatically with diet change. Overall, our study reveals the phenotypic, structural, and metabolic diversity of multiple tissues (vWAT and sWAT) in response to diet change and identifies a role for adipocyte stem cells in the tissue specificity of diet change.
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Affiliation(s)
| | - Bing Fang
- Key Laboratory of Precision Nutrition and Food Quality, Department of Nutrition and Health, China Agricultural University, Beijing 100193, China
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Bonfiglio C, Cuccaro F, Campanella A, Rosso N, Tatoli R, Giannelli G, Donghia R. Effect of Intake of Extra Virgin Olive Oil on Mortality in a South Italian Cohort with and without NAFLD. Nutrients 2023; 15:4593. [PMID: 37960246 PMCID: PMC10649270 DOI: 10.3390/nu15214593] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Revised: 10/20/2023] [Accepted: 10/27/2023] [Indexed: 11/15/2023] Open
Abstract
BACKGROUND Extra-virgin olive oil (EVOO) is the main source of seasoning fat in the Mediterranean diet and it is one of the components with known protective factors on chronic-degenerative disease. We aimed to evaluate the effect of a medium-high level of oil consumption on mortality in a cohort with good adherence to the Mediterranean diet. METHODS A total of 2754 subjects who had completed the food questionnaire in the Multicenter Italian study on Cholelithiasis (MICOL) cohort were included in the study. EVOO consumption was categorized in four levels (<20 g/die, 21-30 g/die, 31-40 g/die, >40 g/die). We performed a flexible parametric survival model to assess mortality by EVOO consumption level adjusted for some covariates. We also performed the analysis on subjects with and without non-alcoholic fatty liver disease (NAFLD) to evaluate the effects of oil in this more fragile sub-cohort. RESULTS We found a statistically significant negative effect on mortality for the whole sample when EVOO consumption was used, both as a continuous variable and when categorized. The protective effect was stronger in the sub-cohort with NAFLD, especially for the highest levels of EVOO consumption (HR = 0.58 with p < 0.05). CONCLUSIONS Our study has shown a protective effect of EVOO consumption towards all causes of mortality. Despite the higher caloric intake, the protective power is greater for a consumption >40 g/day in both the overall cohort and the sub-cohorts with and without NAFLD.
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Affiliation(s)
- Caterina Bonfiglio
- National Institute of Gastroenterology—IRCCS “Saverio de Bellis”, 70013 Castellana Grotte, Italy; (A.C.); (R.T.); (G.G.)
| | | | - Angelo Campanella
- National Institute of Gastroenterology—IRCCS “Saverio de Bellis”, 70013 Castellana Grotte, Italy; (A.C.); (R.T.); (G.G.)
| | - Natalia Rosso
- Fondazione Italiana Fegato, AREA Sciegce Park, Basovizza, 34149 Trieste, Italy;
| | - Rossella Tatoli
- National Institute of Gastroenterology—IRCCS “Saverio de Bellis”, 70013 Castellana Grotte, Italy; (A.C.); (R.T.); (G.G.)
| | - Gianluigi Giannelli
- National Institute of Gastroenterology—IRCCS “Saverio de Bellis”, 70013 Castellana Grotte, Italy; (A.C.); (R.T.); (G.G.)
| | - Rossella Donghia
- National Institute of Gastroenterology—IRCCS “Saverio de Bellis”, 70013 Castellana Grotte, Italy; (A.C.); (R.T.); (G.G.)
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Boccardi V, Pigliautile M, Guazzarini AG, Mecocci P. The Potential of Fasting-Mimicking Diet as a Preventive and Curative Strategy for Alzheimer's Disease. Biomolecules 2023; 13:1133. [PMID: 37509169 PMCID: PMC10377404 DOI: 10.3390/biom13071133] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Revised: 07/05/2023] [Accepted: 07/13/2023] [Indexed: 07/30/2023] Open
Abstract
This review examines the potential of fasting-mimicking diets (FMDs) in preventing and treating Alzheimer's disease (AD). FMDs are low-calorie diets that mimic the physiological and metabolic effects of fasting, including the activation of cellular stress response pathways and autophagy. Recent studies have shown that FMDs can reduce amyloid-beta accumulation, tau phosphorylation, and inflammation, as well as improve cognitive function in animal models of AD. Human studies have also reported improvements in AD biomarkers, cognitive functions, and subjective well-being measures following FMDs. However, the optimal duration and frequency of FMDs and their long-term safety and efficacy remain to be determined. Despite these uncertainties, FMDs hold promise as a non-pharmacological approach to AD prevention and treatment, and further research in this area is warranted.
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Affiliation(s)
- Virginia Boccardi
- Department of Medicine and Surgery, Institute of Gerontology and Geriatrics, University of Perugia, Piazzale Gambuli 1, 06132 Perugia, Italy
| | - Martina Pigliautile
- Department of Medicine and Surgery, Institute of Gerontology and Geriatrics, University of Perugia, Piazzale Gambuli 1, 06132 Perugia, Italy
| | - Anna Giulia Guazzarini
- Department of Medicine and Surgery, Institute of Gerontology and Geriatrics, University of Perugia, Piazzale Gambuli 1, 06132 Perugia, Italy
| | - Patrizia Mecocci
- Department of Medicine and Surgery, Institute of Gerontology and Geriatrics, University of Perugia, Piazzale Gambuli 1, 06132 Perugia, Italy
- Division of Clinical Geriatrics, NVS Department, Karolinska Institutet, 17177 Stockholm, Sweden
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Cramer H, Hohmann C, Lauche R, Choi KE(A, Schneider N, Steckhan N, Rathjens F, Anheyer D, Paul A, von Scheidt C, Ostermann T, Schneider E, Koppold-Liebscher DA, Kessler CS, Dobos G, Michalsen A, Jeitler M. Effects of Fasting and Lifestyle Modification in Patients with Metabolic Syndrome: A Randomized Controlled Trial. J Clin Med 2022; 11:jcm11164751. [PMID: 36012990 PMCID: PMC9410059 DOI: 10.3390/jcm11164751] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Revised: 08/09/2022] [Accepted: 08/10/2022] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND Lifestyle interventions, such as fasting, diet, and exercise, are increasingly used as a treatment option for patients with metabolic syndrome (MS). This study assesses the efficacy and safety of fasting followed by lifestyle modification in patients with MS compared to lifestyle modification only. METHODS Single-blind, multicenter, parallel, randomized controlled trial in two German tertiary referral hospitals in metropolitan areas. INTERVENTIONS (a) 5-day fasting followed by 10 weeks of lifestyle modification (modified DASH diet, exercise, mindfulness; n = 73); (b) 10 weeks of lifestyle modification only (n = 72). MAIN OUTCOMES AND MEASURES Co-primary outcomes were ambulatory systolic blood pressure and the homeostasis model assessment (HOMA) index at week 12. Further outcomes included anthropometric, laboratory parameters, and the PROCAM score at weeks 1, 12, and 24. RESULTS A total of 145 patients with metabolic syndrome (62.8% women; 59.7 ± 9.3 years) were included. No significant group differences occurred for the co-primary outcomes at week 12. However, compared to lifestyle modification only, fasting significantly reduced HOMA index (Δ = -0.8; 95% confidence interval [CI] = -1.7, -0.1), diastolic blood pressure (Δ = -4.8; 95% CI = -5.5, -4.1), BMI (Δ = -1.7; 95% CI = -2.0, -1.4), weight (Δ = -1.7; 95% CI = -2.0, -1.4), waist circumference (Δ = -2.6; 95% CI = -5.0, -0.2), glucose (Δ = -10.3; 95% CI = -19.0, -1.6), insulin (Δ = -2.9; 95% CI = -5.3, -0.4), HbA1c (Δ = -0.2; 95% CI = -0.4, -0.05;), triglycerides (Δ = -48.9; 95% CI = -81.0, -16.9), IL-6 (Δ = -1.2; 95% CI = -2.5, -0.005), and the 10-year risk of acute coronary events (Δ = -4.9; 95% CI = -9.5, -0.4) after week 1. Fasting increased uric acid levels (Δ = 1.0; 95% CI = 0.1, 1.9) and slightly reduced eGRF (Δ = -11.9; 95% CI = -21.8, -2.0). Group differences at week 24 were found for weight (Δ = -2, 7; 95% CI = -4.8, -0.5), BMI (Δ = -1.0; 95% CI = -1.8, -0.3), glucose (Δ = -7.7; 95% CI = -13.5, -1.8), HDL (Δ = 5.1; 95% CI = 1.5, 8.8), and CRP (Δ = 0.2; 95% CI = 0.03, 0.4). No serious adverse events occurred. CONCLUSIONS A beneficial effect at week 24 was found on weight; fasting also induced various positive short-term effects in patients with MS. Fasting can thus be considered a treatment for initializing lifestyle modification for this patient group; however, it remains to be investigated whether and how the multilayered effects of fasting can be maintained in the medium and longer term.
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Affiliation(s)
- Holger Cramer
- Department of Internal and Integrative Medicine, Evangelische Kliniken Essen-Mitte, University of Duisburg-Essen, 45276 Essen, Germany
- Institute for General Practice and Interprofessional Care, University Hospital Tuebingen, 72076 Tuebingen, Germany
- Bosch Health Campus, 70376 Stuttgart, Germany
- National Centre for Naturopathic Medicine, Southern Cross University, Lismore 2480, Australia
| | - Christoph Hohmann
- Institute of Social Medicine, Epidemiology and Health Economics, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, 10117 Berlin, Germany
| | - Romy Lauche
- National Centre for Naturopathic Medicine, Southern Cross University, Lismore 2480, Australia
| | - Kyung-Eun (Anna) Choi
- Center for Health Services Research, Brandenburg Medical School Theodor Fontane, 16816 Neuruppin, Germany
| | - Nadia Schneider
- Department of Internal and Integrative Medicine, Evangelische Kliniken Essen-Mitte, University of Duisburg-Essen, 45276 Essen, Germany
| | - Nico Steckhan
- Institute of Social Medicine, Epidemiology and Health Economics, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, 10117 Berlin, Germany
- Digital Health Center, Hasso Plattner Institute, University of Potsdam, 14469 Potsdam, Germany
| | - Florian Rathjens
- Department of Internal and Integrative Medicine, Evangelische Kliniken Essen-Mitte, University of Duisburg-Essen, 45276 Essen, Germany
| | - Dennis Anheyer
- Department of Internal and Integrative Medicine, Evangelische Kliniken Essen-Mitte, University of Duisburg-Essen, 45276 Essen, Germany
- National Centre for Naturopathic Medicine, Southern Cross University, Lismore 2480, Australia
| | - Anna Paul
- Department of Internal and Integrative Medicine, Evangelische Kliniken Essen-Mitte, University of Duisburg-Essen, 45276 Essen, Germany
| | - Christel von Scheidt
- Department of Internal and Integrative Medicine, Immanuel Hospital Berlin, 14109 Berlin, Germany
| | - Thomas Ostermann
- Department of Psychology and Psychotherapy, Witten/Herdecke University, 58455 Witten, Germany
| | - Elisabeth Schneider
- Institute of Social Medicine, Epidemiology and Health Economics, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, 10117 Berlin, Germany
| | - Daniela A. Koppold-Liebscher
- Institute of Social Medicine, Epidemiology and Health Economics, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, 10117 Berlin, Germany
- Department of Internal and Integrative Medicine, Immanuel Hospital Berlin, 14109 Berlin, Germany
| | - Christian S. Kessler
- Institute of Social Medicine, Epidemiology and Health Economics, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, 10117 Berlin, Germany
- Center for Health Services Research, Brandenburg Medical School Theodor Fontane, 16816 Neuruppin, Germany
| | - Gustav Dobos
- Department of Internal and Integrative Medicine, Evangelische Kliniken Essen-Mitte, University of Duisburg-Essen, 45276 Essen, Germany
| | - Andreas Michalsen
- Institute of Social Medicine, Epidemiology and Health Economics, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, 10117 Berlin, Germany
- Department of Internal and Integrative Medicine, Immanuel Hospital Berlin, 14109 Berlin, Germany
| | - Michael Jeitler
- Institute of Social Medicine, Epidemiology and Health Economics, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, 10117 Berlin, Germany
- Department of Internal and Integrative Medicine, Immanuel Hospital Berlin, 14109 Berlin, Germany
- Correspondence:
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Smith DL, Orlandella RM, Allison DB, Norian LA. Diabetes medications as potential calorie restriction mimetics-a focus on the alpha-glucosidase inhibitor acarbose. GeroScience 2021; 43:1123-1133. [PMID: 33006707 PMCID: PMC8190416 DOI: 10.1007/s11357-020-00278-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Accepted: 09/22/2020] [Indexed: 02/07/2023] Open
Abstract
The field of aging research has grown rapidly over the last half-century, with advancement of scientific technologies to interrogate mechanisms underlying the benefit of life-extending interventions like calorie restriction (CR). Coincident with this increase in knowledge has been the rise of obesity and type 2 diabetes (T2D), both associated with increased morbidity and mortality. Given the difficulty in practicing long-term CR, a search for compounds (CR mimetics) which could recapitulate the health and longevity benefits without requiring food intake reductions was proposed. Alpha-glucosidase inhibitors (AGIs) are compounds that function predominantly within the gastrointestinal tract to inhibit α-glucosidase and α-amylase enzymatic digestion of complex carbohydrates, delaying and decreasing monosaccharide uptake from the gut in the treatment of T2D. Acarbose, an AGI, has been shown in pre-clinical models to increase lifespan (greater longevity benefits in males), with decreased body weight gain independent of calorie intake reduction. The CR mimetic benefits of acarbose are further supported by clinical findings beyond T2D including the risk for other age-related diseases (e.g., cancer, cardiovascular). Open questions remain regarding the exclusivity of acarbose relative to other AGIs, potential off-target effects, and combination with other therapies for healthy aging and longevity extension. Given the promising results in pre-clinical models (even in the absence of T2D), a unique mechanism of action and multiple age-related reduced disease risks that have been reported with acarbose, support for clinical trials with acarbose focusing on aging-related outcomes and incorporating biological sex, age at treatment initiation, and T2D-dependence within the design is warranted.
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Affiliation(s)
- Daniel L Smith
- Department of Nutrition Sciences, University of Alabama at Birmingham, 1720 2nd Avenue S, Webb 423, Birmingham, AL, 35294-3360, USA.
- Nutrition Obesity Research Center, University of Alabama at Birmingham, Birmingham, AL, USA.
- Integrative Center for Aging Research, University of Alabama at Birmingham, Birmingham, AL, USA.
- Nathan Shock Center of Excellence in the Biology of Aging, University of Alabama at Birmingham, Birmingham, AL, USA.
- Diabetes Research Center, University of Alabama at Birmingham, Birmingham, AL, USA.
| | - Rachael M Orlandella
- Graduate Biomedical Sciences, University of Alabama at Birmingham, Birmingham, AL, USA
| | - David B Allison
- School of Public Health, Indiana University - Bloomington, Bloomington, IN, USA
| | - Lyse A Norian
- Department of Nutrition Sciences, University of Alabama at Birmingham, 1720 2nd Avenue S, Webb 423, Birmingham, AL, 35294-3360, USA
- Nutrition Obesity Research Center, University of Alabama at Birmingham, Birmingham, AL, USA
- O'Neal Comprehensive Cancer Center, University of Alabama at Birmingham, Birmingham, AL, USA
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Stadler JT, Marsche G. Obesity-Related Changes in High-Density Lipoprotein Metabolism and Function. Int J Mol Sci 2020; 21:E8985. [PMID: 33256096 PMCID: PMC7731239 DOI: 10.3390/ijms21238985] [Citation(s) in RCA: 69] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Revised: 11/23/2020] [Accepted: 11/24/2020] [Indexed: 02/07/2023] Open
Abstract
In obese individuals, atherogenic dyslipidemia is a very common and important factor in the increased risk of cardiovascular disease. Adiposity-associated dyslipidemia is characterized by low high-density lipoprotein cholesterol (HDL-C) levels and an increase in triglyceride-rich lipoproteins. Several factors and mechanisms are involved in lowering HDL-C levels in the obese state and HDL quantity and quality is closely related to adiponectin levels and the bioactive lipid sphingosine-1-phosphate. Recent studies have shown that obesity profoundly alters HDL metabolism, resulting in altered HDL subclass distribution, composition, and function. Importantly, weight loss through gastric bypass surgery and Mediterranean diet, especially when enriched with virgin olive oil, is associated with increased HDL-C levels and significantly improved metrics of HDL function. A thorough understanding of the underlying mechanisms is crucial for a better understanding of the impact of obesity on lipoprotein metabolism and for the development of appropriate therapeutic approaches. The objective of this review article was to summarize the newly identified changes in the metabolism, composition, and function of HDL in obesity and to discuss possible pathophysiological consequences.
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Affiliation(s)
- Julia T. Stadler
- Otto Loewi Research Center, Division of Pharmacology, Medical University of Graz, 8010 Graz, Austria
| | - Gunther Marsche
- Otto Loewi Research Center, Division of Pharmacology, Medical University of Graz, 8010 Graz, Austria
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Impact of Lifestyles (Diet and Exercise) on Vascular Health: Oxidative Stress and Endothelial Function. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2020; 2020:1496462. [PMID: 33062134 PMCID: PMC7533760 DOI: 10.1155/2020/1496462] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Revised: 08/25/2020] [Accepted: 08/28/2020] [Indexed: 02/07/2023]
Abstract
Healthy lifestyle and diet are associated with significant reduction in risk of obesity, type 2 diabetes, and cardiovascular diseases. Oxidative stress and the imbalance between prooxidants and antioxidants are linked to cardiovascular and metabolic diseases. Changes in antioxidant capacity of the body may lead to oxidative stress and vascular dysfunction. Diet is an important source of antioxidants, while exercise offers many health benefits as well. Recent findings have evidenced that diet and physical factors are correlated to oxidative stress. Diet and physical factors have debatable roles in modulating oxidative stress and effects on the endothelium. Since endothelium and oxidative stress play critical roles in cardiovascular and metabolic diseases, dietary and physical factors could have significant implications on prevention of the diseases. This review is aimed at summarizing the current knowledge on the impact of diet manipulation and physical factors on endothelium and oxidative stress, focusing on cardiovascular and metabolic diseases. We discuss the friend-and-foe role of dietary modification (including different diet styles, calorie restriction, and nutrient supplementation) on endothelium and oxidative stress, as well as the potential benefits and concerns of physical activity and exercise on endothelium and oxidative stress. A fine balance between oxidative stress and antioxidants is important for normal functions in the cells and interfering with this balance may lead to unfavorable effects. Further studies are needed to identify the best diet composition and exercise intensity.
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Di W, Lv Y, Xia F, Sheng Y, Liu J, Ding G. Improvement of intestinal stem cells and barrier function via energy restriction in middle-aged C57BL/6 mice. Nutr Res 2020; 81:47-57. [PMID: 32877836 DOI: 10.1016/j.nutres.2020.06.015] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2019] [Revised: 05/14/2020] [Accepted: 06/22/2020] [Indexed: 01/21/2023]
Abstract
This study aimed to reveal the impact of energy restriction on the intestine via structural and molecular changes in terms of intestinal stem cell (ISC) function, ISC niche, intestinal epithelial barrier function, and intestinal immune function. Female C57BL/6J mice, aged 12 months, fed a commercial chow were used in this study. The ISC function, ISC niche, intestinal epithelial barrier function, and intestinal immune function were assessed. Energy restriction reversed aging-induced intestinal shortening and made the crypts shallower. The intestinal epithelial cells isolated from the intestine showed a significant increase in the expression levels of stem cell-associated genes in small intestinal epithelial cells as detected by flow cytometry. Despite the increase in the number of stem cells and the expression levels of markers, no increase or decrease was found in the enteroid complexity of the small intestine and colonic enteroid formation in vitro. The colonic mucous layer was measured in mice of the energy restricted (ER)-treated group to investigate the epithelial barrier function in the colon. The results revealed that the barrier was more complete. The fluorescence intensity of tight junction markers claudin-2 and zonula occludens-1 increased and the mRNA expression profiles of monocyte chemotactic protein 1 and interleukin-6 decreased in the colon of mice in the ER-treated group. The beneficial effects of ER on the colon in terms of the integrity of the mucosal barrier and alleviation of inflammation were confirmed, thus highlighting the importance of modulating the intestinal function in developing effective antiaging dietary interventions.
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Affiliation(s)
- Wenjuan Di
- Department of Geriatrics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Yifan Lv
- Department of Geriatrics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Fan Xia
- Department of Geriatrics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Yunlu Sheng
- Department of Geriatrics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Juan Liu
- Department of Geriatrics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Guoxian Ding
- Department of Geriatrics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China.
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Boucher JM, Ryzhova L, Harrington A, Davis-Knowlton J, Turner JE, Cooper E, Maridas D, Ryzhov S, Rosen CJ, Vary CPH, Liaw L. Pathological Conversion of Mouse Perivascular Adipose Tissue by Notch Activation. Arterioscler Thromb Vasc Biol 2020; 40:2227-2243. [PMID: 32640901 DOI: 10.1161/atvbaha.120.314731] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
OBJECTIVE Perivascular adipose tissue (PVAT) surrounding arteries supports healthy vascular function. During obesity, PVAT loses its vasoprotective effect. We study pathological conversion of PVAT, which involves molecular changes in protein profiles and functional changes in adipocytes. Approach and Results: C57BL6/J mice were fed a 60% high-fat diet for 12 weeks or a cardioprotective 30% calorie-restricted diet for 5 weeks. Proteomic analysis identified PVAT as a molecularly distinct adipose depot, and novel markers for thermogenic adipocytes, such as GRP75 (stress-70 protein, mitochondrial), were identified. High-fat diet increased the similarity of protein signatures in PVAT and brown adipose, suggesting activation of a conserved whitening pathway. The whitening phenotype was characterized by suppression of UCP1 (uncoupling protein 1) and increased lipid deposition, leptin, and inflammation, and specifically in PVAT, elevated Notch signaling. Conversely, PVAT from calorie-restricted mice had decreased Notch signaling and less lipid. Using the Adipoq-Cre strain, we constitutively activated Notch1 signaling in adipocytes, which phenocopied the changes in PVAT caused by a high-fat diet, even on a standard diet. Preadipocytes from mouse PVAT expressed Sca1, CD140a, Notch1, and Notch2, but not CD105, showing differences compared with preadipocytes from other depots. Inhibition of Notch signaling during differentiation of PVAT-derived preadipocytes reduced lipid deposition and adipocyte marker expression. CONCLUSIONS PVAT shares features with other adipose depots, but has a unique protein signature that is regulated by dietary stress. Increased Notch signaling in PVAT is sufficient to initiate the pathological conversion of PVAT by promoting adipogenesis and lipid accumulation and may thus prime the microenvironment for vascular disease.
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Affiliation(s)
- Joshua M Boucher
- From the Center for Molecular Medicine, Maine Medical Center Research Institute, Scarborough
| | - Larisa Ryzhova
- From the Center for Molecular Medicine, Maine Medical Center Research Institute, Scarborough
| | - Anne Harrington
- From the Center for Molecular Medicine, Maine Medical Center Research Institute, Scarborough
| | - Jessica Davis-Knowlton
- From the Center for Molecular Medicine, Maine Medical Center Research Institute, Scarborough
| | - Jacqueline E Turner
- From the Center for Molecular Medicine, Maine Medical Center Research Institute, Scarborough
| | - Emily Cooper
- From the Center for Molecular Medicine, Maine Medical Center Research Institute, Scarborough
| | - David Maridas
- From the Center for Molecular Medicine, Maine Medical Center Research Institute, Scarborough
| | - Sergey Ryzhov
- From the Center for Molecular Medicine, Maine Medical Center Research Institute, Scarborough
| | - Clifford J Rosen
- From the Center for Molecular Medicine, Maine Medical Center Research Institute, Scarborough
| | - Calvin P H Vary
- From the Center for Molecular Medicine, Maine Medical Center Research Institute, Scarborough
| | - Lucy Liaw
- From the Center for Molecular Medicine, Maine Medical Center Research Institute, Scarborough
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10
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Bhatti GK, Reddy AP, Reddy PH, Bhatti JS. Lifestyle Modifications and Nutritional Interventions in Aging-Associated Cognitive Decline and Alzheimer's Disease. Front Aging Neurosci 2020; 11:369. [PMID: 31998117 PMCID: PMC6966236 DOI: 10.3389/fnagi.2019.00369] [Citation(s) in RCA: 65] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Accepted: 12/16/2019] [Indexed: 12/13/2022] Open
Abstract
Alzheimer's disease (AD) is a type of incurable neurodegenerative disease that is characterized by the accumulation of amyloid-β (Aβ; plaques) and tau hyperphosphorylation as neurofibrillary tangles (NFTs) in the brain followed by neuronal death, cognitive decline, and memory loss. The high prevalence of AD in the developed world has become a major public health challenge associated with social and economic burdens on individuals and society. Due to there being limited options for early diagnosis and determining the exact pathophysiology of AD, finding effective therapeutic strategies has become a great challenge. Several possible risk factors associated with AD pathology have been identified; however, their roles are still inconclusive. Recent clinical trials of the drugs targeting Aβ and tau have failed to find a cure for the AD pathology. Therefore, effective preventive strategies should be followed to reduce the exponential increase in the prevalence of cognitive decline and dementia, especially AD. Although the search for new therapeutic targets is a great challenge for the scientific community, the roles of lifestyle interventions and nutraceuticals in the prevention of many metabolic and neurodegenerative diseases are highly appreciated in the literature. In this article, we summarize the molecular mechanisms involved in AD pathology and the possible ameliorative action of lifestyle and nutritional interventions including diet, exercise, Calorie restriction (CR), and various bioactive compounds on cognitive decline and dementia. This article will provide insights into the role of non-pharmacologic interventions in the modulation of AD pathology, which may offer the benefit of improving quality of life by reducing cognitive decline and incident AD.
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Affiliation(s)
- Gurjit Kaur Bhatti
- Department of Medical Lab Technology, University Institute of Applied Health Sciences, Chandigarh University, Mohali, India
| | - Arubala P. Reddy
- Department of Pharmacology and Neuroscience, Texas Tech University Health Sciences Center, Lubbock, TX, United States
| | - P. Hemachandra Reddy
- Internal Medicine, Texas Tech University Health Sciences Center, Lubbock, TX, United States
- Neuroscience and Pharmacology, Texas Tech University Health Sciences Center, Lubbock, TX, United States
- Neurology, Departments of School of Medicine, Texas Tech University Health Sciences Center, Lubbock, TX, United States
- Public Health Department of Graduate School of Biomedical Sciences, Texas Tech University Health Sciences Center, Lubbock, TX, United States
- Speech, Language and Hearing Sciences Department, School Health Professions, Texas Tech University Health Sciences Center, Lubbock, TX, United States
| | - Jasvinder Singh Bhatti
- Department of Biotechnology and Microbial Biotechnology, Sri Guru Gobind Singh College, Chandigarh, India
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11
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Song SB, Park JS, Chung GJ, Lee IH, Hwang ES. Diverse therapeutic efficacies and more diverse mechanisms of nicotinamide. Metabolomics 2019; 15:137. [PMID: 31587111 DOI: 10.1007/s11306-019-1604-4] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/17/2019] [Accepted: 09/30/2019] [Indexed: 11/30/2022]
Abstract
BACKGROUND Nicotinamide (NAM) is a form of vitamin B3 that, when administered at near-gram doses, has been shown or suggested to be therapeutically effective against many diseases and conditions. The target conditions are incredibly diverse ranging from skin disorders such as bullous pemphigoid to schizophrenia and depression and even AIDS. Similar diversity is expected for the underlying mechanisms. In a large portion of the conditions, NAM conversion to nicotinamide adenine dinucleotide (NAD+) may be a major factor in its efficacy. The augmentation of cellular NAD+ level not only modulates mitochondrial production of ATP and superoxide, but also activates many enzymes. Activated sirtuin proteins, a family of NAD+-dependent deacetylases, play important roles in many of NAM's effects such as an increase in mitochondrial quality and cell viability countering neuronal damages and metabolic diseases. Meanwhile, certain observed effects are mediated by NAM itself. However, our understanding on the mechanisms of NAM's effects is limited to those involving certain key proteins and may even be inaccurate in some proposed cases. AIM OF REVIEW This review details the conditions that NAM has been shown to or is expected to effectively treat in humans and animals and evaluates the proposed underlying molecular mechanisms, with the intention of promoting wider, safe therapeutic application of NAM. KEY SCIENTIFIC CONCEPTS OF REVIEW NAM, by itself or through altering metabolic balance of NAD+ and tryptophan, modulates mitochondrial function and activities of many molecules and thereby positively affects cell viability and metabolic functions. And, NAM administration appears to be quite safe with limited possibility of side effects which are related to NAM's metabolites.
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Affiliation(s)
- Seon Beom Song
- Department of Life Science, University of Seoul, Dongdaemun-gu, Seoulsiripdae-ro 163, Seoul, Republic of Korea
| | - Jin Sung Park
- Department of Life Science, University of Seoul, Dongdaemun-gu, Seoulsiripdae-ro 163, Seoul, Republic of Korea
| | - Gu June Chung
- Department of Life Science, University of Seoul, Dongdaemun-gu, Seoulsiripdae-ro 163, Seoul, Republic of Korea
| | - In Hye Lee
- Department of Life Science, Ewha Womans University, Ewhayeodae-gil 52, Seoul, Republic of Korea
| | - Eun Seong Hwang
- Department of Life Science, University of Seoul, Dongdaemun-gu, Seoulsiripdae-ro 163, Seoul, Republic of Korea.
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12
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Hausmann J, Waechtershaeuser A, Behnken I, Aksan A, Blumenstein I, Brenner M, Loitsch SM, Stein J. The role of adipokines in the improvement of diabetic and cardiovascular risk factors within a 52-week weight-loss programme for obesity. Obes Res Clin Pract 2019; 13:440-447. [PMID: 31591082 DOI: 10.1016/j.orcp.2019.09.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/11/2019] [Revised: 09/17/2019] [Accepted: 09/23/2019] [Indexed: 01/01/2023]
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13
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Badimon L, Bugiardini R, Cenko E, Cubedo J, Dorobantu M, Duncker DJ, Estruch R, Milicic D, Tousoulis D, Vasiljevic Z, Vilahur G, de Wit C, Koller A. Position paper of the European Society of Cardiology-working group of coronary pathophysiology and microcirculation: obesity and heart disease. Eur Heart J 2019; 38:1951-1958. [PMID: 28873951 DOI: 10.1093/eurheartj/ehx181] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/18/2016] [Accepted: 04/28/2017] [Indexed: 12/15/2022] Open
Affiliation(s)
- Lina Badimon
- Cardiovascular Research Center (CSIC-ICCC), CIBERCV, and Biomedical Research Institute Sant Pau (IIB-Sant Pau), c/Sant Antoni M Claret 167, 08025 Barcelona, Spain.,Cardiovascular Research Chair UAB, Barcelona, Spain
| | - Raffaele Bugiardini
- Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Via Giuseppe Massarenti 9, 40138 Bologna, Italy
| | - Edina Cenko
- Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Via Giuseppe Massarenti 9, 40138 Bologna, Italy
| | - Judit Cubedo
- Cardiovascular Research Center (CSIC-ICCC), CIBERCV, and Biomedical Research Institute Sant Pau (IIB-Sant Pau), c/Sant Antoni MaClaret 167, 08025 Barcelona, Spain
| | - Maria Dorobantu
- Cardiology Department, University of Medicine and Pharmacy "Carol Davila" of Bucharest, Emergency Clinical Hospital of Bucharest, 8, Calea Floreasca, Sector 1, 014461 Bucuresti, Romania
| | - Dirk J Duncker
- Division of Experimental Cardiology, Department of Cardiology, Thoraxcenter, Cardiovascular Research Institute COEUR, Erasmus University Medical Center, PO Box 1738, 3000 DR, Rotterdam, The Netherlands
| | - Ramón Estruch
- Department of Internal Medicine, Hospital Clinic, IDIBAPS, University of Barcelona, Villarroel, 170, 08036 Barcelona, Spain.,CIBER Obesity and Nutrition, Instituto de Salud Carlos III, Spain
| | - Davor Milicic
- Department for Cardiovascular Diseases, University Hospital Center Zagreb, University of Zagreb, Kispaticeva 12, HR-10000 Zagreb, Croatia
| | - Dimitris Tousoulis
- First Department of Cardiology, Hippokration Hospital, University of Athens Medical School, Vasilissis Sofias 114, TK 115 28 Athens, Greece
| | - Zorana Vasiljevic
- Clinical Center of Serbia, University of Belgrade, Pasterova 2, 11000 Belgrade, Serbia
| | - Gemma Vilahur
- Cardiovascular Research Center (CSIC-ICCC), CIBERCV, and Biomedical Research Institute Sant Pau (IIB-Sant Pau), c/Sant Antoni MaClaret 167, 08025 Barcelona, Spain
| | - Cor de Wit
- Institut für Physiologie, Universität zu Lübeck and Deutsches Zentrumfür Herz-Kreislauf-Forschung (DZHK) e.V., partner site: Hamburg/Kiel/Lübeck, Ratzeburger Allee 160, 23538 Lübeck, Germany
| | - Akos Koller
- Institute of Natural Sciences, University of Physical Education, Alkotas street, 44, 1123 Budapest, Hungary.,Department of Physiology, New York Medical College, Valhalla, NY 10595, USA
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14
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de Lucia C, Gambino G, Petraglia L, Elia A, Komici K, Femminella GD, D'Amico ML, Formisano R, Borghetti G, Liccardo D, Nolano M, Houser SR, Leosco D, Ferrara N, Koch WJ, Rengo G. Long-Term Caloric Restriction Improves Cardiac Function, Remodeling, Adrenergic Responsiveness, and Sympathetic Innervation in a Model of Postischemic Heart Failure. Circ Heart Fail 2019. [PMID: 29535114 DOI: 10.1161/circheartfailure.117.004153] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
BACKGROUND Caloric restriction (CR) has been described to have cardioprotective effects and improve functional outcomes in animal models and humans. Chronic ischemic heart failure (HF) is associated with reduced cardiac sympathetic innervation, dysfunctional β-adrenergic receptor signaling, and decreased cardiac inotropic reserve. We tested the effects of a long-term CR diet, started late after myocardial infarction on cardiac function, sympathetic innervation, and β-adrenergic receptor responsiveness in a rat model of postischemic HF. METHODS AND RESULTS Adult male rats were randomly assigned to myocardial infarction or sham operation and 4 weeks later were further randomized to a 1-year CR or normal diet. One year of CR resulted in a significant reduction in body weight, heart weight, and heart weight/tibia length ratio when compared with normal diet in HF groups. At the end of the study period, echocardiography and histology revealed that HF animals under the CR diet had ameliorated left ventricular remodeling compared with HF rats fed with normal diet. Invasive hemodynamic showed a significant improvement of cardiac inotropic reserve in CR HF rats compared with HF-normal diet animals. Importantly, CR dietary regimen was associated with a significant increase of cardiac sympathetic innervation and with normalized cardiac β-adrenergic receptor levels in HF rats when compared with HF rats on the standard diet. CONCLUSIONS We demonstrate, for the first time, that chronic CR, when started after HF established, can ameliorate cardiac dysfunction and improve inotropic reserve. At the molecular level, we find that chronic CR diet significantly improves sympathetic cardiac innervation and β-adrenergic receptor levels in failing myocardium.
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Affiliation(s)
- Claudio de Lucia
- From the Division of Geriatrics, Department of Translational Medical Sciences, Federico II University of Naples, Italy (C.d.L., G.G., L.P., A.E., K.K., G.D.F., M.L.D., R.F., D. Liccardo, D. Leosco, N.F., G.R.); Center for Translational Medicine (C.d.L., D. Liccardo, W.J.K.), Department of Pharmacology (C.d.L., D. Liccardo, W.J.K.) and Cardiovascular Research Center (G.B., S.R.H.), Lewis Katz School of Medicine, Temple University, Philadelphia, PA; Salvatore Maugeri Foundation, IRCCS, Scientific Institute of Telese Terme (BN), Italy (G.G., A.E., M.L.D., M.N., N.F., G.R.); and Neurology Imaging Unit, Imperial College London, United Kingdom (G.D.F.)
| | - Giuseppina Gambino
- From the Division of Geriatrics, Department of Translational Medical Sciences, Federico II University of Naples, Italy (C.d.L., G.G., L.P., A.E., K.K., G.D.F., M.L.D., R.F., D. Liccardo, D. Leosco, N.F., G.R.); Center for Translational Medicine (C.d.L., D. Liccardo, W.J.K.), Department of Pharmacology (C.d.L., D. Liccardo, W.J.K.) and Cardiovascular Research Center (G.B., S.R.H.), Lewis Katz School of Medicine, Temple University, Philadelphia, PA; Salvatore Maugeri Foundation, IRCCS, Scientific Institute of Telese Terme (BN), Italy (G.G., A.E., M.L.D., M.N., N.F., G.R.); and Neurology Imaging Unit, Imperial College London, United Kingdom (G.D.F.)
| | - Laura Petraglia
- From the Division of Geriatrics, Department of Translational Medical Sciences, Federico II University of Naples, Italy (C.d.L., G.G., L.P., A.E., K.K., G.D.F., M.L.D., R.F., D. Liccardo, D. Leosco, N.F., G.R.); Center for Translational Medicine (C.d.L., D. Liccardo, W.J.K.), Department of Pharmacology (C.d.L., D. Liccardo, W.J.K.) and Cardiovascular Research Center (G.B., S.R.H.), Lewis Katz School of Medicine, Temple University, Philadelphia, PA; Salvatore Maugeri Foundation, IRCCS, Scientific Institute of Telese Terme (BN), Italy (G.G., A.E., M.L.D., M.N., N.F., G.R.); and Neurology Imaging Unit, Imperial College London, United Kingdom (G.D.F.)
| | - Andrea Elia
- From the Division of Geriatrics, Department of Translational Medical Sciences, Federico II University of Naples, Italy (C.d.L., G.G., L.P., A.E., K.K., G.D.F., M.L.D., R.F., D. Liccardo, D. Leosco, N.F., G.R.); Center for Translational Medicine (C.d.L., D. Liccardo, W.J.K.), Department of Pharmacology (C.d.L., D. Liccardo, W.J.K.) and Cardiovascular Research Center (G.B., S.R.H.), Lewis Katz School of Medicine, Temple University, Philadelphia, PA; Salvatore Maugeri Foundation, IRCCS, Scientific Institute of Telese Terme (BN), Italy (G.G., A.E., M.L.D., M.N., N.F., G.R.); and Neurology Imaging Unit, Imperial College London, United Kingdom (G.D.F.)
| | - Klara Komici
- From the Division of Geriatrics, Department of Translational Medical Sciences, Federico II University of Naples, Italy (C.d.L., G.G., L.P., A.E., K.K., G.D.F., M.L.D., R.F., D. Liccardo, D. Leosco, N.F., G.R.); Center for Translational Medicine (C.d.L., D. Liccardo, W.J.K.), Department of Pharmacology (C.d.L., D. Liccardo, W.J.K.) and Cardiovascular Research Center (G.B., S.R.H.), Lewis Katz School of Medicine, Temple University, Philadelphia, PA; Salvatore Maugeri Foundation, IRCCS, Scientific Institute of Telese Terme (BN), Italy (G.G., A.E., M.L.D., M.N., N.F., G.R.); and Neurology Imaging Unit, Imperial College London, United Kingdom (G.D.F.)
| | - Grazia Daniela Femminella
- From the Division of Geriatrics, Department of Translational Medical Sciences, Federico II University of Naples, Italy (C.d.L., G.G., L.P., A.E., K.K., G.D.F., M.L.D., R.F., D. Liccardo, D. Leosco, N.F., G.R.); Center for Translational Medicine (C.d.L., D. Liccardo, W.J.K.), Department of Pharmacology (C.d.L., D. Liccardo, W.J.K.) and Cardiovascular Research Center (G.B., S.R.H.), Lewis Katz School of Medicine, Temple University, Philadelphia, PA; Salvatore Maugeri Foundation, IRCCS, Scientific Institute of Telese Terme (BN), Italy (G.G., A.E., M.L.D., M.N., N.F., G.R.); and Neurology Imaging Unit, Imperial College London, United Kingdom (G.D.F.)
| | - Maria Loreta D'Amico
- From the Division of Geriatrics, Department of Translational Medical Sciences, Federico II University of Naples, Italy (C.d.L., G.G., L.P., A.E., K.K., G.D.F., M.L.D., R.F., D. Liccardo, D. Leosco, N.F., G.R.); Center for Translational Medicine (C.d.L., D. Liccardo, W.J.K.), Department of Pharmacology (C.d.L., D. Liccardo, W.J.K.) and Cardiovascular Research Center (G.B., S.R.H.), Lewis Katz School of Medicine, Temple University, Philadelphia, PA; Salvatore Maugeri Foundation, IRCCS, Scientific Institute of Telese Terme (BN), Italy (G.G., A.E., M.L.D., M.N., N.F., G.R.); and Neurology Imaging Unit, Imperial College London, United Kingdom (G.D.F.)
| | - Roberto Formisano
- From the Division of Geriatrics, Department of Translational Medical Sciences, Federico II University of Naples, Italy (C.d.L., G.G., L.P., A.E., K.K., G.D.F., M.L.D., R.F., D. Liccardo, D. Leosco, N.F., G.R.); Center for Translational Medicine (C.d.L., D. Liccardo, W.J.K.), Department of Pharmacology (C.d.L., D. Liccardo, W.J.K.) and Cardiovascular Research Center (G.B., S.R.H.), Lewis Katz School of Medicine, Temple University, Philadelphia, PA; Salvatore Maugeri Foundation, IRCCS, Scientific Institute of Telese Terme (BN), Italy (G.G., A.E., M.L.D., M.N., N.F., G.R.); and Neurology Imaging Unit, Imperial College London, United Kingdom (G.D.F.)
| | - Giulia Borghetti
- From the Division of Geriatrics, Department of Translational Medical Sciences, Federico II University of Naples, Italy (C.d.L., G.G., L.P., A.E., K.K., G.D.F., M.L.D., R.F., D. Liccardo, D. Leosco, N.F., G.R.); Center for Translational Medicine (C.d.L., D. Liccardo, W.J.K.), Department of Pharmacology (C.d.L., D. Liccardo, W.J.K.) and Cardiovascular Research Center (G.B., S.R.H.), Lewis Katz School of Medicine, Temple University, Philadelphia, PA; Salvatore Maugeri Foundation, IRCCS, Scientific Institute of Telese Terme (BN), Italy (G.G., A.E., M.L.D., M.N., N.F., G.R.); and Neurology Imaging Unit, Imperial College London, United Kingdom (G.D.F.)
| | - Daniela Liccardo
- From the Division of Geriatrics, Department of Translational Medical Sciences, Federico II University of Naples, Italy (C.d.L., G.G., L.P., A.E., K.K., G.D.F., M.L.D., R.F., D. Liccardo, D. Leosco, N.F., G.R.); Center for Translational Medicine (C.d.L., D. Liccardo, W.J.K.), Department of Pharmacology (C.d.L., D. Liccardo, W.J.K.) and Cardiovascular Research Center (G.B., S.R.H.), Lewis Katz School of Medicine, Temple University, Philadelphia, PA; Salvatore Maugeri Foundation, IRCCS, Scientific Institute of Telese Terme (BN), Italy (G.G., A.E., M.L.D., M.N., N.F., G.R.); and Neurology Imaging Unit, Imperial College London, United Kingdom (G.D.F.)
| | - Maria Nolano
- From the Division of Geriatrics, Department of Translational Medical Sciences, Federico II University of Naples, Italy (C.d.L., G.G., L.P., A.E., K.K., G.D.F., M.L.D., R.F., D. Liccardo, D. Leosco, N.F., G.R.); Center for Translational Medicine (C.d.L., D. Liccardo, W.J.K.), Department of Pharmacology (C.d.L., D. Liccardo, W.J.K.) and Cardiovascular Research Center (G.B., S.R.H.), Lewis Katz School of Medicine, Temple University, Philadelphia, PA; Salvatore Maugeri Foundation, IRCCS, Scientific Institute of Telese Terme (BN), Italy (G.G., A.E., M.L.D., M.N., N.F., G.R.); and Neurology Imaging Unit, Imperial College London, United Kingdom (G.D.F.)
| | - Steven R Houser
- From the Division of Geriatrics, Department of Translational Medical Sciences, Federico II University of Naples, Italy (C.d.L., G.G., L.P., A.E., K.K., G.D.F., M.L.D., R.F., D. Liccardo, D. Leosco, N.F., G.R.); Center for Translational Medicine (C.d.L., D. Liccardo, W.J.K.), Department of Pharmacology (C.d.L., D. Liccardo, W.J.K.) and Cardiovascular Research Center (G.B., S.R.H.), Lewis Katz School of Medicine, Temple University, Philadelphia, PA; Salvatore Maugeri Foundation, IRCCS, Scientific Institute of Telese Terme (BN), Italy (G.G., A.E., M.L.D., M.N., N.F., G.R.); and Neurology Imaging Unit, Imperial College London, United Kingdom (G.D.F.)
| | - Dario Leosco
- From the Division of Geriatrics, Department of Translational Medical Sciences, Federico II University of Naples, Italy (C.d.L., G.G., L.P., A.E., K.K., G.D.F., M.L.D., R.F., D. Liccardo, D. Leosco, N.F., G.R.); Center for Translational Medicine (C.d.L., D. Liccardo, W.J.K.), Department of Pharmacology (C.d.L., D. Liccardo, W.J.K.) and Cardiovascular Research Center (G.B., S.R.H.), Lewis Katz School of Medicine, Temple University, Philadelphia, PA; Salvatore Maugeri Foundation, IRCCS, Scientific Institute of Telese Terme (BN), Italy (G.G., A.E., M.L.D., M.N., N.F., G.R.); and Neurology Imaging Unit, Imperial College London, United Kingdom (G.D.F.)
| | - Nicola Ferrara
- From the Division of Geriatrics, Department of Translational Medical Sciences, Federico II University of Naples, Italy (C.d.L., G.G., L.P., A.E., K.K., G.D.F., M.L.D., R.F., D. Liccardo, D. Leosco, N.F., G.R.); Center for Translational Medicine (C.d.L., D. Liccardo, W.J.K.), Department of Pharmacology (C.d.L., D. Liccardo, W.J.K.) and Cardiovascular Research Center (G.B., S.R.H.), Lewis Katz School of Medicine, Temple University, Philadelphia, PA; Salvatore Maugeri Foundation, IRCCS, Scientific Institute of Telese Terme (BN), Italy (G.G., A.E., M.L.D., M.N., N.F., G.R.); and Neurology Imaging Unit, Imperial College London, United Kingdom (G.D.F.)
| | - Walter J Koch
- From the Division of Geriatrics, Department of Translational Medical Sciences, Federico II University of Naples, Italy (C.d.L., G.G., L.P., A.E., K.K., G.D.F., M.L.D., R.F., D. Liccardo, D. Leosco, N.F., G.R.); Center for Translational Medicine (C.d.L., D. Liccardo, W.J.K.), Department of Pharmacology (C.d.L., D. Liccardo, W.J.K.) and Cardiovascular Research Center (G.B., S.R.H.), Lewis Katz School of Medicine, Temple University, Philadelphia, PA; Salvatore Maugeri Foundation, IRCCS, Scientific Institute of Telese Terme (BN), Italy (G.G., A.E., M.L.D., M.N., N.F., G.R.); and Neurology Imaging Unit, Imperial College London, United Kingdom (G.D.F.).
| | - Giuseppe Rengo
- From the Division of Geriatrics, Department of Translational Medical Sciences, Federico II University of Naples, Italy (C.d.L., G.G., L.P., A.E., K.K., G.D.F., M.L.D., R.F., D. Liccardo, D. Leosco, N.F., G.R.); Center for Translational Medicine (C.d.L., D. Liccardo, W.J.K.), Department of Pharmacology (C.d.L., D. Liccardo, W.J.K.) and Cardiovascular Research Center (G.B., S.R.H.), Lewis Katz School of Medicine, Temple University, Philadelphia, PA; Salvatore Maugeri Foundation, IRCCS, Scientific Institute of Telese Terme (BN), Italy (G.G., A.E., M.L.D., M.N., N.F., G.R.); and Neurology Imaging Unit, Imperial College London, United Kingdom (G.D.F.).
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15
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Avoiding holiday seasonal weight gain with nutrient-supported intermittent energy restriction: a pilot study. J Nutr Sci 2019; 8:e11. [PMID: 30931109 PMCID: PMC6436006 DOI: 10.1017/jns.2019.8] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2018] [Revised: 02/12/2019] [Accepted: 02/25/2019] [Indexed: 12/26/2022] Open
Abstract
This pilot randomised controlled study evaluated the effects of a nutrient-supported intermittent energy restriction nutrition programme to prevent weight gain in healthy overweight adults during the 6-week winter holiday period between Thanksgiving and New Year. For 52 d, twenty-two overweight adults (mean age 41·0 years, BMI 27·3 kg/m2) were assigned to either the nutrition programme (n 10; two fasting days of 730 kcal/d (3050 kJ/d) of balanced shake and dietary supplements to support weight management efforts, followed by 5 d of habitual diet) or a control group (n 12; habitual diet). A significant weight loss from baseline (pre-holiday 10 d before Thanksgiving) to day 52 (post-holiday 3 January) was observed in the nutrition programme (75·0 (sd 9·8) v. 76·3 (sd 9·8) kg; P < 0·05). Body weight did not significantly change in the control group and there was no between-group difference. Increases from baseline in fasting insulin (42·9 %; P = 0·0256), updated homoeostasis model assessment (HOMA2) (43 %; P = 0·025), LDL-cholesterol (8·4 %; P = 0·0426) and total cholesterol (7·1 %; P = 0·0154) levels were also reported in the control group. In the nutrition programme group, baseline HDL-cholesterol and TAG levels measured after two fasting days increased (13 %; P = 0·0245) and decreased (22·8 %; P = 0·0416), respectively. There was no significant change in HOMA2. Between-group differences in changes in insulin levels (P = 0·0227), total cholesterol:HDL-cholesterol ratio (P = 0·0419) and HOMA2 (P = 0·0210) were significant. Overall compliance rate was 98 % and no severe adverse events were reported. These preliminary findings suggest that this intermittent energy restriction intervention might support weight management efforts and help promote metabolic health during the winter holiday season.
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El Ghoch M, Calugi S, Dalle Grave R. Weight cycling in adults with severe obesity: A longitudinal study. Nutr Diet 2017; 75:256-262. [PMID: 29114979 DOI: 10.1111/1747-0080.12387] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2017] [Revised: 06/12/2017] [Accepted: 08/29/2017] [Indexed: 11/28/2022]
Abstract
AIM Although weight cycling is a common phenomenon in treatment-seeking patients with obesity, its consequences on health outcomes have not yet been completely clarified. We therefore aimed to investigate the effect of one cycle of intentional weight loss and regain on energy expenditure, body composition, cardiovascular risk factors and psychosocial variables in patients with severe obesity. METHODS Clinical and psychosocial variables were measured in 38 adult patients with severe obesity (body mass index (BMI): 43.5 ± 7.2 kg/m2 ) consecutively readmitted to rehabilitative residential treatment (T1) for severe obesity after a cycle of weight loss (16.7 ±7.7 kg) and regain (15.1 ±11.3 kg), and compared with those recorded at a prior admission (T0). RESULTS No significant differences were found between T0 and T1 values for weight, BMI, waist circumference, total body fat percentage, fat-free mass percentage, respiratory quotient, measured or predicted resting energy expenditure, metabolic adaptation, cardiovascular risk factors or psychosocial variables. However, younger patients (r = -0.38, P = 0.023) and those with higher historical weight (r = 0.43, P = 0.010) tended to regain more weight. CONCLUSIONS The absence of negative physical and psychological effects of weight cycling indicates that the risk of weight regain should not be a barrier to encouraging weight loss efforts in patients with severe obesity.
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Affiliation(s)
- Marwan El Ghoch
- Department of Eating and Weight Disorders, Villa Garda Hospital, Garda, Verona, Italy
| | - Simona Calugi
- Department of Eating and Weight Disorders, Villa Garda Hospital, Garda, Verona, Italy
| | - Riccardo Dalle Grave
- Department of Eating and Weight Disorders, Villa Garda Hospital, Garda, Verona, Italy
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17
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Lambert EA, Sari CI, Eikelis N, Phillips SE, Grima M, Straznicky NE, Dixon JB, Esler M, Schlaich MP, Head GA, Lambert GW. Effects of Moxonidine and Low-Calorie Diet: Cardiometabolic Benefits from Combination of Both Therapies. Obesity (Silver Spring) 2017; 25:1894-1902. [PMID: 28865109 DOI: 10.1002/oby.21962] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/22/2017] [Revised: 06/28/2017] [Accepted: 07/20/2017] [Indexed: 11/10/2022]
Abstract
OBJECTIVE Because sympathetic nervous system activity plays a detrimental role in metabolic and cardiovascular health, this study compared the effects of a centrally acting sympatholytic agent, the effects of a weight loss (WL) program using a low-calorie diet, and the effects of a combination of both. METHODS Young (18-30 years) male subjects with overweight (BMI > 25 kg/m2 ) were allocated to a WL program (n = 10), a moxonidine treatment course (M; n = 10, 0.4 mg/d), a combination of both (WL + M; n = 11), or to a control (C) group (n = 6) for 6 months. Muscle sympathetic nerve activity (MSNA), endothelial function, renal function (Cockcroft-Gault formula), and the metabolic profile were assessed before and after intervention. RESULTS WL occurred in the WL and WL + M groups (-7.6 ± 1.9 kg, P < 0.001 in both). MSNA and systolic blood pressure decreased similarly in the WL, M, and WL + M groups (by ∼10 bursts/min, P < 0.001, and by ∼9 mm Hg, P < 0.05). All other parameters for the WL, C, and M groups remained unchanged. In the WL + M group, decreased total cholesterol (-0.78 ± 0.23 mmol/L, P < 0.001), decreased low-density lipoprotein cholesterol (-0.49 ± 0.16 mmol/L, P < 0.01), decreased insulin (-6.5 ± 2.8 mmol/L, P < 0.05), and attenuated glomerular hyperfiltration (-19 ± 5 mL/min, P < 0.01) occurred. CONCLUSIONS The combination of moxonidine with a WL program has beneficial effects on aspects of the metabolic profile and end organ damage in young males with overweight.
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Affiliation(s)
- Elisabeth A Lambert
- Human Neurotransmitters Laboratory, Baker Heart and Diabetes Institute, Melbourne, Victoria, Australia
- Faculty of Health, Arts and Design, Iverson Health Innovation Research Institute, Swinburne University of Technology, Hawthorn, Victoria, Australia
| | - Carolina I Sari
- Human Neurotransmitters Laboratory, Baker Heart and Diabetes Institute, Melbourne, Victoria, Australia
| | - Nina Eikelis
- Human Neurotransmitters Laboratory, Baker Heart and Diabetes Institute, Melbourne, Victoria, Australia
- Faculty of Health, Arts and Design, Iverson Health Innovation Research Institute, Swinburne University of Technology, Hawthorn, Victoria, Australia
| | - Sarah E Phillips
- Human Neurotransmitters Laboratory, Baker Heart and Diabetes Institute, Melbourne, Victoria, Australia
- Faculty of Health, Arts and Design, Iverson Health Innovation Research Institute, Swinburne University of Technology, Hawthorn, Victoria, Australia
| | - Mariee Grima
- Human Neurotransmitters Laboratory, Baker Heart and Diabetes Institute, Melbourne, Victoria, Australia
| | - Nora E Straznicky
- Human Neurotransmitters Laboratory, Baker Heart and Diabetes Institute, Melbourne, Victoria, Australia
| | - John B Dixon
- Clinical Obesity Research Laboratory, Baker Heart and Diabetes Institute, Melbourne, Victoria, Australia
- Department of General Practice, Monash University, Clayton, Victoria, Australia
| | - Murray Esler
- Human Neurotransmitters Laboratory, Baker Heart and Diabetes Institute, Melbourne, Victoria, Australia
| | - Markus P Schlaich
- Dobney Hypertension Centre, School of Medicine, Royal Perth Hospital Unit, University of Western Australia, Perth, Western Australia, Australia
| | - Geoffrey A Head
- Neuropharmacology Laboratory, Baker Heart and Diabetes Institute, Melbourne, Victoria, Australia
| | - Gavin W Lambert
- Human Neurotransmitters Laboratory, Baker Heart and Diabetes Institute, Melbourne, Victoria, Australia
- Faculty of Health, Arts and Design, Iverson Health Innovation Research Institute, Swinburne University of Technology, Hawthorn, Victoria, Australia
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18
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Sheng Y, Lv S, Huang M, Lv Y, Yu J, Liu J, Tang T, Qi H, Di W, Ding G. Opposing effects on cardiac function by calorie restriction in different-aged mice. Aging Cell 2017; 16:1155-1167. [PMID: 28799249 PMCID: PMC5595678 DOI: 10.1111/acel.12652] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/24/2017] [Indexed: 12/25/2022] Open
Abstract
Calorie restriction (CR) increases average and maximum lifespan and exhibits an apparent beneficial impact on age‐related diseases. Several studies have shown that CR initiated either in middle or old age could improve ischemic tolerance and rejuvenate the aging heart; however, the data are not uniform when initiated in young. The accurate time to initiate CR providing maximum benefits for cardiac remodeling and function during aging remains unclear. Thus, whether a similar degree of CR initiated in mice of different ages could exert a similar effect on myocardial protection was investigated in this study. C57BL/6 mice were subjected to a calorically restricted diet (40% less than the ad libitum diet) for 3 months initiated in 3, 12, and 19 months. It was found that CR significantly reversed the aging phenotypes of middle‐aged and old mice including cardiac remodeling (cardiomyocyte hypertrophy and cardiac fibrosis), inflammation, mitochondrial damage, telomere shortening, as well as senescence‐associated markers but accelerated in young mice. Furthermore, whole‐genome microarray demonstrated that the AMP‐activated protein kinase (AMPK)–Forkhead box subgroup ‘O’ (FOXO) pathway might be a major contributor to contrasting regulation by CR initiated in different ages; thus, increased autophagy was seen in middle‐aged and old mice but decreased in young mice. Together, the findings demonstrated promising myocardial protection by 40% CR should be initiated in middle or old age that may have vital implications for the practical nutritional regimen.
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Affiliation(s)
- Yunlu Sheng
- Department of Geratology; The First Hospital Affiliated to Nanjing Medical University; 300 Guangzhou Road Nanjing 210029 China
| | - Shan Lv
- Department of Geratology; The First Hospital Affiliated to Nanjing Medical University; 300 Guangzhou Road Nanjing 210029 China
| | - Min Huang
- Department of Geratology; The First Hospital Affiliated to Nanjing Medical University; 300 Guangzhou Road Nanjing 210029 China
| | - Yifan Lv
- Department of Geratology; The First Hospital Affiliated to Nanjing Medical University; 300 Guangzhou Road Nanjing 210029 China
| | - Jing Yu
- Department of Geratology; The First Hospital Affiliated to Nanjing Medical University; 300 Guangzhou Road Nanjing 210029 China
| | - Juan Liu
- Department of Geratology; The First Hospital Affiliated to Nanjing Medical University; 300 Guangzhou Road Nanjing 210029 China
| | - Tingting Tang
- Department of Geratology; The First Hospital Affiliated to Nanjing Medical University; 300 Guangzhou Road Nanjing 210029 China
| | - Hanmei Qi
- Department of Geratology; The First Hospital Affiliated to Nanjing Medical University; 300 Guangzhou Road Nanjing 210029 China
| | - Wenjuan Di
- Department of Geratology; The First Hospital Affiliated to Nanjing Medical University; 300 Guangzhou Road Nanjing 210029 China
| | - Guoxian Ding
- Department of Geratology; The First Hospital Affiliated to Nanjing Medical University; 300 Guangzhou Road Nanjing 210029 China
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19
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Mazor R, Schmid-Schönbein GW. Proteolytic receptor cleavage in the pathogenesis of blood rheology and co-morbidities in metabolic syndrome. Early forms of autodigestion. Biorheology 2016; 52:337-52. [PMID: 26600265 DOI: 10.3233/bir-15045] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Abnormal blood rheological properties seldom occur in isolation and instead are accompanied by other complications, often designated as co-morbidities. In the metabolic syndrome with complications like hypertension, diabetes and lack of normal microvascular blood flow, the underlying molecular mechanisms that simultaneously lead to elevated blood pressure and diabetes as well as abnormal microvascular rheology and other cell dysfunctions have remained largely unknown. In this review, we propose a new hypothesis for the origin of abnormal cell functions as well as multiple co-morbidities. Utilizing experimental models for the metabolic disease with diverse co-morbidities we summarize evidence for the presence of an uncontrolled extracellular proteolytic activity that causes ectodomain receptor cleavage and loss of their associated cell function. We summarize evidence for unchecked degrading proteinase activity, e.g. due to matrix metalloproteases, in patients with hypertension, Type II diabetes and obesity, in addition to evidence for receptor cleavage in the form of receptor fragments and decreased extracellular membrane expression levels. The evidence suggest that a shift in blood rheological properties and other co-morbidities may in fact be derived from a common mechanism that is due to uncontrolled proteolytic activity, i.e. an early form of autodigestion. Identification of the particular proteases involved and the mechanisms of their activation may open the door to treatment that simultaneously targets multiple co-morbidities in the metabolic syndrome.
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Affiliation(s)
- Rafi Mazor
- Department of Bioengineering, Institute of Engineering in Medicine, University of California, San Diego, La Jolla, CA, USA
| | - Geert W Schmid-Schönbein
- Department of Bioengineering, Institute of Engineering in Medicine, University of California, San Diego, La Jolla, CA, USA
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20
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Simons CCJM, Schouten LJ, Godschalk RW, van Engeland M, van den Brandt PA, van Schooten FJ, Weijenberg MP. Energy restriction at young age, genetic variants in the insulin-like growth factor pathway and colorectal cancer risk in the Netherlands Cohort Study. Int J Cancer 2016; 140:272-284. [PMID: 27649841 DOI: 10.1002/ijc.30439] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2016] [Revised: 08/08/2016] [Accepted: 08/18/2016] [Indexed: 12/16/2022]
Abstract
The energy restriction (ER)-colorectal cancer (CRC) association is inconsistent in literature. To strengthen the biological plausibility of the ER-CRC association, we investigated whether genetic variation in the insulin-like growth factor (IGF) pathway, a putative underlying mechanism, modulated this association in the Netherlands Cohort Study. Participants completed a questionnaire (n = 120,852) and provided toenail clippings for DNA (∼75%) at baseline. Individuals living in a Western city during the Hunger Winter (1944-45) or Western rural versus non-Western area were exposed to (severe) ER at young age. Genotyping was performed for 3,768 subcohort members and 2,580 CRC cases (case-cohort with 16.3 years follow-up). Cox hazard ratios for CRC were estimated across combined categories of ER and a genetic sum score of unfavorable alleles based on 18 single nucleotide polymorphisms in IGF-related genes and ER and an IGF1 19-CA repeat polymorphism. The reference included ER exposed individuals, so that increased hazard ratios were expected in higher combined categories for calculating relative excess risks due to interaction (additive interactions). Wald tests for multiplicative interactions were also performed. Multiplicative and additive interactions were nonsignificant. Combined ER-genetic sum score categories showed increasing CRC risks in men, but confidence intervals were wide. Women carrying two variant IGF1 19-CA repeat alleles versus those carrying two wild type IGF1 19-CA repeat alleles were at an ∼50% decreased CRC risk, irrespective of ER exposure. In conclusion, data indicate that the IGF pathway might be involved in the ER-CRC association in men, but not women, although interactions were nonsignificant, hampering definite conclusions.
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Affiliation(s)
- Colinda C J M Simons
- Department of Epidemiology, GROW-School for Oncology and Developmental Biology, Maastricht University, Maastricht, the Netherlands
| | - Leo J Schouten
- Department of Epidemiology, GROW-School for Oncology and Developmental Biology, Maastricht University, Maastricht, the Netherlands
| | - Roger W Godschalk
- Department of Toxicology, NUTRIM-School for Nutrition and Translational Research on Metabolism, Maastricht University, Maastricht, the Netherlands
| | - Manon van Engeland
- Department of Pathology, GROW-School for Oncology and Developmental Biology, Maastricht University Medical Center, Maastricht, the Netherlands
| | - Piet A van den Brandt
- Department of Epidemiology, GROW-School for Oncology and Developmental Biology, Maastricht University, Maastricht, the Netherlands
| | - Frederik J van Schooten
- Department of Toxicology, NUTRIM-School for Nutrition and Translational Research on Metabolism, Maastricht University, Maastricht, the Netherlands
| | - Matty P Weijenberg
- Department of Epidemiology, GROW-School for Oncology and Developmental Biology, Maastricht University, Maastricht, the Netherlands
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21
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Glycine supplementation during calorie restriction accelerates fat loss and protects against further muscle loss in obese mice. Clin Nutr 2016; 35:1118-26. [DOI: 10.1016/j.clnu.2015.08.013] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2015] [Revised: 07/16/2015] [Accepted: 08/27/2015] [Indexed: 12/19/2022]
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22
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Bocci V, Valacchi G. Nrf2 activation as target to implement therapeutic treatments. Front Chem 2015; 3:4. [PMID: 25699252 PMCID: PMC4313773 DOI: 10.3389/fchem.2015.00004] [Citation(s) in RCA: 77] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2014] [Accepted: 01/12/2015] [Indexed: 12/30/2022] Open
Abstract
A chronic increase of oxidative stress is typical of serious pathologies such as myocardial infarction, stroke, chronic limb ischemia, chronic obstructive pulmonary disease (COPD), type II-diabetes, age-related macular degeneration leads to an epic increase of morbidity and mortality in all countries of the world. The initial inflammation followed by an excessive release of reactive oxygen species (ROS) implies a diffused cellular injury that needs to be corrected by an inducible expression of the innate detoxifying and antioxidant system. The transcription factor Nrf2, when properly activated, is able to restore a redox homeostasis and possibly improve human health.
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Affiliation(s)
- Velio Bocci
- Department of Biotechnologies, Chemistry and Pharmacy, University of Siena Siena, Italy
| | - Giuseppe Valacchi
- Department of Life Sciences and Biotechnology, University of Ferrara Ferrara, Italy
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23
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Albadah MS, Dekhil H, Shaik SA, Alsaif MA, Shogair M, Nawaz S, Alfadda AA. Effect of weight loss on serum osteocalcin and its association with serum adipokines. Int J Endocrinol 2015; 2015:508532. [PMID: 25784935 PMCID: PMC4345075 DOI: 10.1155/2015/508532] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/27/2014] [Revised: 01/30/2015] [Accepted: 01/30/2015] [Indexed: 01/13/2023] Open
Abstract
Studies have suggested that osteocalcin, a bone formation marker, is related to body metabolism and insulin sensitivity. Whether this relation is mediated through an interaction with adipokines remains unclear. The aim of this study was to assess the effect of weight loss on serum osteocalcin and its relation with three adipokines, adiponectin, chemerin, and resistin. Forty-nine obese nondiabetic males completed a four-month dietary program. Body mass index (BMI) decreased significantly from 39.7 ± 7.6 to 37.8 ± 7.6 (P < 0.001). This was associated with significant reduction in waist circumference, fasting blood glucose, HOMA-IR, total and LDL-cholesterol, bone-specific alkaline phosphatase (BAP), and resistin (P < 0.05). There was significant increase in serum adiponectin and undercarboxylated osteocalcin (uOC) (P < 0.001). The changes in uOC levels were negatively correlated with changes in serum triglycerides (r = -0.51, P < 0.001) and positively correlated with changes in BAP (r = 0.52, P < 0.001). In contrast, the changes in uOC were not correlated with changes in BMI, waist circumference, fasting blood glucose, HOMA-IR, total and LDL-cholesterol, hsCRP, vitamin D, and circulating adipokines. We concluded that the increase in serum uOC following weight loss is not related to the changes in circulating adipokines levels.
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Affiliation(s)
- Mohammed S. Albadah
- Obesity Research Center, College of Medicine, King Saud University, P.O. Box 2925 (98), Riyadh 11461, Saudi Arabia
- Department of Clinical Nutrition, King Khalid University Hospital, King Saud University, P.O. Box 7805 (104), Riyadh 11472, Saudi Arabia
| | - Hafedh Dekhil
- Obesity Research Center, College of Medicine, King Saud University, P.O. Box 2925 (98), Riyadh 11461, Saudi Arabia
| | - Shaffi Ahamed Shaik
- Department of Family and Community Medicine, College of Medicine, King Saud University, P.O. Box 2925, Riyadh 11461, Saudi Arabia
| | - Mohammed A. Alsaif
- Department of Community Health Sciences, College of Applied Medical Sciences, King Saud University, P.O. Box 10219, Riyadh 11433, Saudi Arabia
| | - Mustafa Shogair
- Obesity Research Center, College of Medicine, King Saud University, P.O. Box 2925 (98), Riyadh 11461, Saudi Arabia
| | - Shahid Nawaz
- Obesity Research Center, College of Medicine, King Saud University, P.O. Box 2925 (98), Riyadh 11461, Saudi Arabia
| | - Assim A. Alfadda
- Obesity Research Center, College of Medicine, King Saud University, P.O. Box 2925 (98), Riyadh 11461, Saudi Arabia
- Department of Medicine, College of Medicine, King Saud University, P.O. Box 2925 (38), Riyadh 11461, Saudi Arabia
- *Assim A. Alfadda:
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24
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Loffredo FS, Nikolova AP, Pancoast JR, Lee RT. Heart failure with preserved ejection fraction: molecular pathways of the aging myocardium. Circ Res 2014; 115:97-107. [PMID: 24951760 DOI: 10.1161/circresaha.115.302929] [Citation(s) in RCA: 134] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Age-related diastolic dysfunction is a major factor in the epidemic of heart failure. In patients hospitalized with heart failure, HFpEF is now as common as heart failure with reduced ejection fraction. We now have many successful treatments for heart failure with reduced ejection fraction, while specific treatment options for HFpEF patients remain elusive. The lack of treatments for HFpEF reflects our very incomplete understanding of this constellation of diseases. There are many pathophysiological factors in HFpEF, but aging appears to play an important role. Here, we propose that aging of the myocardium is itself a specific pathophysiological process. New insights into the aging heart, including hormonal controls and specific molecular pathways, such as microRNAs, are pointing to myocardial aging as a potentially reversible process. While the overall process of aging remains mysterious, understanding the molecular pathways of myocardial aging has never been more important. Unraveling these pathways could lead to new therapies for the enormous and growing problem of HFpEF.
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Affiliation(s)
- Francesco S Loffredo
- From the Department of Stem Cell and Regenerative Biology, Harvard University, Brigham Regenerative Medicine Center, Cambridge, MA; Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA; and Harvard Stem Cell Institute, Cambridge, MA
| | - Andriana P Nikolova
- From the Department of Stem Cell and Regenerative Biology, Harvard University, Brigham Regenerative Medicine Center, Cambridge, MA; Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA; and Harvard Stem Cell Institute, Cambridge, MA
| | - James R Pancoast
- From the Department of Stem Cell and Regenerative Biology, Harvard University, Brigham Regenerative Medicine Center, Cambridge, MA; Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA; and Harvard Stem Cell Institute, Cambridge, MA
| | - Richard T Lee
- From the Department of Stem Cell and Regenerative Biology, Harvard University, Brigham Regenerative Medicine Center, Cambridge, MA; Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA; and Harvard Stem Cell Institute, Cambridge, MA.
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25
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Luo XY, Qu SL, Tang ZH, Zhang Y, Liu MH, Peng J, Tang H, Yu KL, Zhang C, Ren Z, Jiang ZS. SIRT1 in cardiovascular aging. Clin Chim Acta 2014; 437:106-14. [PMID: 25063737 DOI: 10.1016/j.cca.2014.07.019] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2014] [Revised: 07/14/2014] [Accepted: 07/15/2014] [Indexed: 12/21/2022]
Abstract
Cardiovascular disease (CVD) is the leading cause of death worldwide, with aging as the key independent risk factor. Effective interventions are necessary to delay aging. Sirtuin1 (SIRT1), a NAD(+)-dependent histone deacetylase, is closely related to lifespan extension. SIRT1 exerts beneficial effects on aging and age-related diseases, such as atherosclerosis. In this review, we summarize the current knowledge on the functions of SIRT1 in cardiovascular aging, focusing on the underlying molecular mechanisms, including inhibition of oxidative stress and inflammation, and induction of autophagy. We also demonstrate that moderate up-regulation or activation of SIRT1 in cardiovascular aging and age-related CVD may confer important application values.
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Affiliation(s)
- Xin-Yuan Luo
- Institute of Cardiovascular Disease, Key Lab for Arteriosclerology of Hunan Province, University of South China, Hengyang City 421001, Hunan Province, China
| | - Shun-Lin Qu
- Institute of Cardiovascular Disease, Key Lab for Arteriosclerology of Hunan Province, University of South China, Hengyang City 421001, Hunan Province, China
| | - Zhi-Han Tang
- Institute of Cardiovascular Disease, Key Lab for Arteriosclerology of Hunan Province, University of South China, Hengyang City 421001, Hunan Province, China
| | - Yuan Zhang
- Institute of Cardiovascular Disease, Key Lab for Arteriosclerology of Hunan Province, University of South China, Hengyang City 421001, Hunan Province, China
| | - Mi-Hua Liu
- Institute of Cardiovascular Disease, Key Lab for Arteriosclerology of Hunan Province, University of South China, Hengyang City 421001, Hunan Province, China
| | - Juan Peng
- Institute of Cardiovascular Disease, Key Lab for Arteriosclerology of Hunan Province, University of South China, Hengyang City 421001, Hunan Province, China
| | - Hui Tang
- Institute of Cardiovascular Disease, Key Lab for Arteriosclerology of Hunan Province, University of South China, Hengyang City 421001, Hunan Province, China
| | - Kang-Lun Yu
- Institute of Cardiovascular Disease, Key Lab for Arteriosclerology of Hunan Province, University of South China, Hengyang City 421001, Hunan Province, China
| | - Chi Zhang
- Institute of Cardiovascular Disease, Key Lab for Arteriosclerology of Hunan Province, University of South China, Hengyang City 421001, Hunan Province, China
| | - Zhong Ren
- Institute of Cardiovascular Disease, Key Lab for Arteriosclerology of Hunan Province, University of South China, Hengyang City 421001, Hunan Province, China
| | - Zhi-Sheng Jiang
- Institute of Cardiovascular Disease, Key Lab for Arteriosclerology of Hunan Province, University of South China, Hengyang City 421001, Hunan Province, China.
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26
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Mantis JG, Meidenbauer JJ, Zimick NC, Centeno NA, Seyfried TN. Glucose reduces the anticonvulsant effects of the ketogenic diet in EL mice. Epilepsy Res 2014; 108:1137-44. [PMID: 24938543 DOI: 10.1016/j.eplepsyres.2014.05.010] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2013] [Revised: 03/14/2014] [Accepted: 05/19/2014] [Indexed: 01/24/2023]
Abstract
The ketogenic diet (KD) is known to be anticonvulsant and anti-epileptogenic. While the mechanism behind this therapeutic benefit is unclear, a reduction of circulating glucose levels through calorie restriction (CR) has been implicated. Foods or drinks that elevate blood glucose are known to compromise the therapeutic benefit of the KD in some children with epilepsy. We therefore evaluated the effect of a calorie restricted KD (KD-R) with supplementation of glucose in the drinking water of EL mice, a natural model of idiopathic generalized epilepsy, prior to seizure testing to assess the effect of glucose on seizure generation. Mice were fed either a standard diet or the KD unrestricted (SD-UR and KD-UR, respectively), or the KD restricted (KD-R). d-Glucose (25 mM) was supplemented in the drinking water of KD-R fed mice for 0.5h or for 2.5h prior to seizure testing. Each restricted mouse served as its own body weight control to achieve a 15-18% body weight reduction. Seizure susceptibility, body weights, and plasma glucose and β-hydroxybutyrate levels were measured over a nine-week treatment period. Body weights and glucose levels remained high over the testing period in both the SD-UR and the KD-UR groups, but were significantly reduced in all R-fed groups. A significant increase in β-hydroxybutyrate levels was observed in all KD groups. Seizure susceptibility remained highest in the SD-UR group, was slightly reduced in the KD-UR group, and was significantly reduced after three weeks in all R-fed groups. Supplementation of glucose prior to seizure testing resulted in a decrease of seizure threshold for R-fed mice, but did not alter bodyweight or circulating glucose levels. The KD has both an anticonvulsant and antiepileptogenic effect in EL mice. Here we confirm that CR enhances the anticonvulsant action of the KD in EL mice. Additionally, we show for the first time that supplementation of glucose decreases the anticonvulsant action of the KD, which further supports the hypothesis that CR works through transitioning metabolism from glucose to ketone utilization for energy.
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Affiliation(s)
- John G Mantis
- Biology Department, Boston College, Chestnut Hill, MA, USA
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27
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Abstract
PURPOSE While the impact of caloric restriction on human health is not fully understood, there is strong evidence to support further studies of its influence on cardiovascular health. The purpose of this review was to update the state of the science by examining the relevant literature regarding calorie-restriction effects on aging and cardiovascular health and to discuss the possible role(s) of calorie restriction in preserving cardiovascular function in humans. METHODS For purpose of this review, we have defined calorie restriction as a reduction in energy intake well below the amount of calories that would be consumed ad libitum (≥10% in humans, ≥20% in animals). We examined the relevant literature on calorie-restriction effects on longevity and cardiovascular health, with an emphasis on the state of the science regarding calorie restriction in humans. We have emphasized the importance of the preliminary and expected findings from the Comprehensive Assessment of the Long-term Effect of Reducing Intake of Energy trial. RESULTS Evidence from animal studies and a limited number of human trials indicates that calorie restriction has the potential to both delay cardiac aging and help prevent atherosclerotic cardiovascular disease via beneficial effects on blood pressure, lipids, inflammatory processes, and potentially other mechanisms. CONCLUSIONS On the basis of its known benefits to cardiometabolic health, including modest calorie restriction in a combined lifestyle program is likely to improve heart health and prevent subsequent cardiovascular events in overweight and obese individuals. Additional study is needed to further illuminate its long-term applicability for older adults and for those with significant comorbidities, such as heart failure.
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Kroeger CM, Hoddy KK, Varady KA. Impact of weight regain on metabolic disease risk: a review of human trials. J Obes 2014; 2014:614519. [PMID: 25197563 PMCID: PMC4147362 DOI: 10.1155/2014/614519] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/04/2014] [Revised: 07/15/2014] [Accepted: 08/04/2014] [Indexed: 02/07/2023] Open
Abstract
Dietary restriction interventions are effective for weight loss and reduction of chronic disease risk. Unfortunately, most people tend to regain much of this lost weight within one year after intervention. While some studies suggest that minor degrees of weight regain have no effect on metabolic disease risk parameters, other studies demonstrate a complete reversal in metabolic benefits. In light of these conflicting findings, it is of interest to determine how complete weight maintenance versus mild weight regain affects key risk parameters. These findings would have important clinical implications, as they could help identify a weight regain threshold that could preserve the metabolic benefits of weight loss. Accordingly, this review examined the impact of no weight regain versus mild regain on various metabolic disease risk parameters, including plasma lipids, blood pressure, glucose, and insulin concentrations, in adult subjects.
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Affiliation(s)
- Cynthia M. Kroeger
- Department of Kinesiology and Nutrition, University of Illinois at Chicago, 1919 West Taylor Street, Room 506F, Chicago, IL 60612, USA
| | - Kristin K. Hoddy
- Department of Kinesiology and Nutrition, University of Illinois at Chicago, 1919 West Taylor Street, Room 506F, Chicago, IL 60612, USA
| | - Krista A. Varady
- Department of Kinesiology and Nutrition, University of Illinois at Chicago, 1919 West Taylor Street, Room 506F, Chicago, IL 60612, USA
- *Krista A. Varady:
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29
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Huang CJ, Zourdos MC, Jo E, Ormsbee MJ. Influence of physical activity and nutrition on obesity-related immune function. ScientificWorldJournal 2013; 2013:752071. [PMID: 24324381 PMCID: PMC3842061 DOI: 10.1155/2013/752071] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2013] [Accepted: 09/19/2013] [Indexed: 12/17/2022] Open
Abstract
Research examining immune function during obesity suggests that excessive adiposity is linked to impaired immune responses leading to pathology. The deleterious effects of obesity on immunity have been associated with the systemic proinflammatory profile generated by the secretory molecules derived from adipose cells. These include inflammatory peptides, such as TNF- α , CRP, and IL-6. Consequently, obesity is now characterized as a state of chronic low-grade systemic inflammation, a condition considerably linked to the development of comorbidity. Given the critical role of adipose tissue in the inflammatory process, especially in obese individuals, it becomes an important clinical objective to identify lifestyle factors that may affect the obesity-immune system relationship. For instance, stress, physical activity, and nutrition have each shown to be a significant lifestyle factor influencing the inflammatory profile associated with the state of obesity. Therefore, the purpose of this review is to comprehensively evaluate the impact of lifestyle factors, in particular psychological stress, physical activity, and nutrition, on obesity-related immune function with specific focus on inflammation.
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Affiliation(s)
- Chun-Jung Huang
- Department of Exercise Science and Health Promotion, Florida Atlantic University, 777 Glades Road, FH11A-126B, Boca Raton, FL 33431, USA
| | - Michael C. Zourdos
- Department of Exercise Science and Health Promotion, Florida Atlantic University, 777 Glades Road, FH11A-126B, Boca Raton, FL 33431, USA
| | - Edward Jo
- Department of Kinesiology and Health Promotion, California State Polytechnic University, Pomona, Pomona, CA, USA
- Department of Nutrition, Food and Exercise Sciences, The Florida State University, Tallahassee, FL, USA
| | - Michael J. Ormsbee
- Department of Nutrition, Food and Exercise Sciences, The Florida State University, Tallahassee, FL, USA
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Effects of calorie restriction and IGF-1 receptor blockade on the progression of 22Rv1 prostate cancer xenografts. Int J Mol Sci 2013; 14:13782-95. [PMID: 23823800 PMCID: PMC3742217 DOI: 10.3390/ijms140713782] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2013] [Revised: 05/22/2013] [Accepted: 06/21/2013] [Indexed: 11/30/2022] Open
Abstract
Calorie restriction (CR) inhibits prostate cancer progression, partially through modulation of the IGF axis. IGF-1 receptor (IGF-1R) blockade reduces prostate cancer xenograft growth. We hypothesized that combining calorie restriction with IGF-1R blockade would have an additive effect on prostate cancer growth. Severe combined immunodeficient mice were subcutaneously injected with 22Rv1 cells and randomized to: (1) Ad libitum feeding/intraperitoneal saline (Ad-lib); (2) Ad-lib/20 mg/kg twice weekly, intraperitoneal ganitumab [anti-IGF-1R antibody (Ad-lib/Ab)]; (3) 40% calorie restriction/intraperitoneal saline (CR); (4) CR/ intraperitoneal ganitumab, (CR/Ab). CR and ganitumab treatment were initiated one week after tumor injection. Euthanasia occurred 19 days post treatment. Results showed that CR alone decreased final tumor weight, plasma insulin and IGF-1 levels, and increased apoptosis. Ganitumab therapy alone reduced tumor growth but had no effect on final tumor weight. The combination therapy (CR/Ab) further decreased final tumor weight and proliferation, increased apoptosis in comparison to the Ad-lib group, and lowered plasma insulin levels relative to the Ad-lib and Ad-lib/Ab groups. Tumor AKT activation directly correlated with plasma IGF-1 levels. In conclusion, whereas ganitumab therapy modestly affected 22Rv1 tumor growth, combining IGF-1R blockade with calorie restriction resulted in a significant decrease in final tumor weight and improved metabolic profile.
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Sung MMY, Dyck JRB. Age-related cardiovascular disease and the beneficial effects of calorie restriction. Heart Fail Rev 2013; 17:707-19. [PMID: 22095297 DOI: 10.1007/s10741-011-9293-8] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Aging is a well-recognized risk factor in the development of cardiovascular disease, which is the primary cause of death and disability in the elderly population. The normal process of aging is associated with progressive deterioration in structure and function of the heart and vasculature. These age-related changes likely act as both a catalyst and accelerator in the development of cardiovascular disease. Since the aging population is one of the fastest growing segments of the population, it is of vital importance that we have a thorough understanding of the physiological changes that occur with aging that contribute to the high incidence of cardiovascular disease in this population. This insight will allow for the development of more targeted therapies that can prevent and treat these conditions. One such anti-aging strategy that has received considerable attention as of late is calorie restriction. Calorie restriction has emerged as one of the most effective and reproducible interventions for extending lifespan, as well as protecting against obesity, metabolic disorders, and cardiovascular disease. Herein, we review the multiple beneficial effects that calorie restriction and resveratrol exert on the cardiovascular system with a particular focus on aging. Although calorie restriction and resveratrol have proven to be very effective in preventing and treating the development of cardiovascular disease in animal models, studies continue as to whether these profound beneficial effects can translate to humans to improve cardiovascular health.
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Affiliation(s)
- Miranda M Y Sung
- Department of Pediatrics, Cardiovascular Research Centre, Mazankowski Alberta Heart Institute, University of Alberta, Edmonton, AB, Canada
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Mercken EM, Carboneau BA, Krzysik-Walker SM, de Cabo R. Of mice and men: the benefits of caloric restriction, exercise, and mimetics. Ageing Res Rev 2012; 11:390-8. [PMID: 22210414 DOI: 10.1016/j.arr.2011.11.005] [Citation(s) in RCA: 212] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2011] [Revised: 11/09/2011] [Accepted: 11/18/2011] [Indexed: 12/25/2022]
Abstract
During aging there is an increasing imbalance of energy intake and expenditure resulting in obesity, frailty, and metabolic disorders. For decades, research has shown that caloric restriction (CR) and exercise can postpone detrimental aspects of aging. These two interventions invoke a similar physiological signature involving pathways associated with stress responses and mitochondrial homeostasis. Nonetheless, CR is able to delay aging processes that result in an increase of both mean and maximum lifespan, whereas exercise primarily increases healthspan. Due to the strict dietary regime necessary to achieve the beneficial effects of CR, most studies to date have focused on rodents and non-human primates. As a consequence, there is vast interest in the development of compounds such as resveratrol, metformin and rapamycin that would activate the same metabolic- and stress-response pathways induced by these interventions without actually restricting caloric intake. Therefore the scope of this review is to (i) describe the benefits of CR and exercise in healthy individuals, (ii) discuss the role of these interventions in the diseased state, and (iii) examine some of the promising pharmacological alternatives such as CR- and exercise-mimetics.
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Calorie restriction and resveratrol in cardiovascular health and disease. Biochim Biophys Acta Mol Basis Dis 2011; 1812:1477-89. [PMID: 21749920 DOI: 10.1016/j.bbadis.2011.06.010] [Citation(s) in RCA: 120] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2011] [Revised: 06/05/2011] [Accepted: 06/24/2011] [Indexed: 11/24/2022]
Abstract
Calorie restriction is one of the most effective nutritional interventions that reproducibly protects against obesity, diabetes and cardiovascular disease. Recent evidence suggests that even when implemented over a short period, calorie restriction is a safe and effective treatment for cardiovascular disease. Herein, we review the effects of calorie restriction on the cardiovascular system as well as the biological effects of resveratrol, the most widely studied molecule that appears to mimic calorie restriction. An overview of microarray data reveals that the myocardial transcriptional effects of calorie restriction overlap with the transcriptional responses to resveratrol treatment. In addition, calorie restriction and resveratrol modulate similar pathways to improve mitochondrial function, reduce oxidative stress and increase nitric oxide production that are involved in atherosclerosis prevention, blood pressure reduction, attenuation of left-ventricular hypertrophy, resistance to myocardial ischemic injury and heart failure prevention. We also review the data that suggest that the effects of calorie restriction and resveratrol on the cardiovascular system may involve signaling through the silent information regulator of transcription (SIRT), Akt and the AMP-activated protein kinase (AMPK) pathways. While accumulating data demonstrate the health benefits of calorie restriction and resveratrol in experimental animal models, whether these interventions translate to patients with cardiovascular disease remains to be determined.
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Beneficial effects of alternate dietary regimen on liver inflammation, atherosclerosis and renal activation. PLoS One 2011; 6:e18432. [PMID: 21483792 PMCID: PMC3069095 DOI: 10.1371/journal.pone.0018432] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2010] [Accepted: 03/04/2011] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Alternate day calorie restriction (CR) has been shown to be almost as beneficial as daily CR. The question arises whether this concept is also applicable to alternating dietary composition. OBJECTIVE To seek evidence that alternating high cholesterol (HC)-cholesterol-free (CON) Western diet can effectively diminish hepatic and renal inflammation and cardiovascular risk factors as compared with daily HC-supplemented Western diet. DESIGN Four groups of ApoE*3Leiden mice, a humanized model for atherosclerosis, were subjected to different feeding treatments for 16 weeks. Mice were fed CON diet; CON diet with 1% w/w cholesterol (HC); alternate (ALT) diet regimen of CON (4 days) and HC (3 days); or CON diet supplemented with 0.43% (w/w) cholesterol (MC), with overall dietary cholesterol intake equal to ALT. Plasma was analyzed for cardiovascular risk factors, aorta for atherosclerotic lesion formation, and liver and kidney for inflammation. RESULTS ALT diet but not MC was almost as effective as daily CON feeding in preventing disease development. Compared to HC, the ALT group showed 62% lower hepatic nuclear factor kappa B (NF-κB) activity (P<0.001), a reduction of the circulating inflammatory markers E-selectin (-20%; P<0.05), vascular cell adhesion molecule 1 (VCAM-1; -15%; P<0.05) and Serum Amyloid A (SAA; -31%; P<0.05), smaller atherosclerotic lesion sizes (-51%; 46497±10791 µm2 vs. 94664±16470 µm2; P<0.05) and diminished renal expression of specific inflammation and activation markers (VCAM-1, -27%; P<0.05; monocyte chemotactic protein-1 (MCP-1); -37%; P<0.01). CONCLUSION Alternate HC-CON feeding reproduced most of the beneficial effects of daily cholesterol-free diet, including strongly diminished hepatic, vascular and renal activation and inflammation; also atherosclerosis was reduced by half as compared to HC, albeit still higher compared to the CON group.
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Fitzgerald V, Mensack M, Wolfe P, Thompson H. A transfer-less, multi-well liquid culture feeding system for screening small molecules that affect the longevity of Caenorhabditis elegans. Biotechniques 2011; 47:ix-xv. [PMID: 20041852 DOI: 10.2144/000113277] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Agricultural sciences rely almost entirely on chemical assays to screen the thousands of crop cultivars generated in a crop improvement program for potential human health benefits. This situation exists in part because most animal models are expensive to implement, utilize large amounts of plant material, and require specialized facilities and technical training. A cost-effective, high-throughput animal model to screen crop extracts for small molecules with biological activity related to human health benefits would provide a much-needed resource. Here we introduce a new, relatively high-throughput method incorporating the microscopic Caenorhabditis elegans nematode, which is suitable for screening chemical extracts for bioactivity without the need for robotics. This system was chosen because longevity extension in C. elegans has been previously associated with human health benefits. Through the use of cell culture inserts, C. elegans can be exposed to fresh crop extracts daily throughout their lifespan without mechanical manipulation of the worm, thus minimizing stress and creating an environment suitable for experiments measuring longevity. Additionally, the duration of longevity experiments can be reduced by using type II right censoring in experimental design and survival analyses.
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Affiliation(s)
- Vanessa Fitzgerald
- Cancer Prevention Laboratory, Colorado State University, Fort Collins, CO 80523, USA
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Delano FA, Chen AY, Wu KIS, Tran ED, Rodrigues SF, Schmid-Schönbein GW. THE AUTODIGESTION HYPOTHESIS AND RECEPTOR CLEAVAGE IN DIABETES AND HYPERTENSION. ACTA ACUST UNITED AC 2011; 8:37-46. [PMID: 22081770 DOI: 10.1016/j.ddmod.2011.05.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
One of the key features of cardiovascular complications, such as hypertension or diabetes, is that they often appear at the same time in the same individual together with other forms of co-morbidities. While clinically a recognized phenomenon, no molecular mechanism for such co-morbidities has received universal acceptance. We propose a new hypothesis that provides a molecular basis for co-morbidities in hypertension due to unchecked proteolytic activity and receptor destruction. Testing of the hypothesis in the spontaneously hypertensive rat reveals an unchecked matrix metalloproteinase and serine protease activity in plasma and on several cardiovascular and parenchymal cells. The elevated proteolytic activity causes extracellular cleavage of multiple receptor types, such that cleavage of one receptor type leads to loss of the function carried out by this receptor. Proteolytic cleavage of the extracellular domain of the β(2) adrenergic receptor in arteries and arterioles causes vasoconstriction and elevation of the central blood pressure while cleavage of the extracellular domain of the insulin receptor leads to insulin resistance and lack of transmembrane glucose transport. A diverse set of cell dysfunctions in the spontaneously hypertensive rat are accompanied by cleavage of the membrane receptors that are involved in these functions. Chronic inhibition of the unchecked protease activity in the spontaneously hypertensive rat serves to restore the extracellular receptor density and alleviates the corresponding cell dysfunctions. The mild unchecked proteolytic activity in the spontaneously hypertensive rat points towards a chronic autodigestion process as a contributor to the end organ injury encountered in this rat strain. The presence of various soluble receptors, which consist of extracellular fragments of membrane receptors, in the plasma of hypertensive and diabetic patients suggest that the autodigestion process may also be present in man.
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Affiliation(s)
- F A Delano
- Department of Bioengineering, Institute for Engineering in Medicine, University of California San Diego, La Jolla, CA 92093 - 0412
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Cesar L, Suarez SV, Adi J, Adi N, Vazquez-Padron R, Yu H, Ma Q, Goldschmidt-Clermont PJ, Agatston A, Kurlansky P, Webster KA. An essential role for diet in exercise-mediated protection against dyslipidemia, inflammation and atherosclerosis in ApoE⁻/⁻ mice. PLoS One 2011; 6:e17263. [PMID: 21359188 PMCID: PMC3040230 DOI: 10.1371/journal.pone.0017263] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2010] [Accepted: 01/27/2011] [Indexed: 01/28/2023] Open
Abstract
BACKGROUND Diet and exercise promote cardiovascular health but their relative contributions to atherosclerosis are not fully known. The transition from a sedentary to active lifestyle requires increased caloric intake to achieve energy balance. Using atherosclerosis-prone ApoE-null mice we sought to determine whether the benefits of exercise for arterial disease are dependent on the food source of the additional calories. METHODS AND RESULTS Mice were fed a high-fat diet (HF) for 4.5 months to initiate atherosclerosis after which time half were continued on HF while the other half were switched to a high protein/fish oil diet (HP). Half of each group underwent voluntary running. Food intake, running distance, body weight, lipids, inflammation markers, and atherosclerotic plaque were quantified. Two-way ANOVA tests were used to assess differences and interactions between groups. Exercised mice ran approximately 6-km per day with no difference between groups. Both groups increased food intake during exercise and there was a significant main effect of exercise F((1,44) = 9.86, p<0.01) without interaction. Diet or exercise produced significant independent effects on body weight (diet: F(1,52) = 6.85, p = 0.012; exercise: F(1,52) = 9.52, p<0.01) with no significant interaction. The combination of HP diet and exercise produced a greater decrease in total cholesterol (F(1, 46) = 7.9, p<0.01) and LDL (F(1, 46) = 7.33, p<0.01) with a large effect on the size of the interaction. HP diet and exercise independently reduced TGL and VLDL (p<0.05 and 0.001 respectively). Interleukin 6 and C-reactive protein were highest in the HF-sedentary group and were significantly reduced by exercise only in this group. Plaque accumulation in the aortic arch, a marker of cardiovascular events was reduced by the HP diet and the effect was significantly potentiated by exercise only in this group resulting in significant plaque regression (F1, 49 = 4.77, p<0.05). CONCLUSION In this model exercise is beneficial to combat dyslipidemia and protect from atherosclerosis only when combined with diet.
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Affiliation(s)
- Liliana Cesar
- Department of Molecular and Cellular Pharmacology and the Vascular Biology Institute, University of Miami Miller School of Medicine, Miami, Florida, United States of America
| | - Samuel Vasallo Suarez
- Department of Molecular and Cellular Pharmacology and the Vascular Biology Institute, University of Miami Miller School of Medicine, Miami, Florida, United States of America
| | - Jennipher Adi
- Department of Molecular and Cellular Pharmacology and the Vascular Biology Institute, University of Miami Miller School of Medicine, Miami, Florida, United States of America
| | - Nikhil Adi
- Department of Molecular and Cellular Pharmacology and the Vascular Biology Institute, University of Miami Miller School of Medicine, Miami, Florida, United States of America
| | - Roberto Vazquez-Padron
- Department of Molecular and Cellular Pharmacology and the Vascular Biology Institute, University of Miami Miller School of Medicine, Miami, Florida, United States of America
| | - Hong Yu
- Department of Molecular and Cellular Pharmacology and the Vascular Biology Institute, University of Miami Miller School of Medicine, Miami, Florida, United States of America
| | - Qi Ma
- Department of Molecular and Cellular Pharmacology and the Vascular Biology Institute, University of Miami Miller School of Medicine, Miami, Florida, United States of America
| | - Pascal J. Goldschmidt-Clermont
- Department of Molecular and Cellular Pharmacology and the Vascular Biology Institute, University of Miami Miller School of Medicine, Miami, Florida, United States of America
| | - Arthur Agatston
- Agatston Research Institute, Miami Beach, Florida, United States of America
| | - Paul Kurlansky
- Florida Heart Research Institute, Miami Beach, Florida, United States of America
| | - Keith A. Webster
- Department of Molecular and Cellular Pharmacology and the Vascular Biology Institute, University of Miami Miller School of Medicine, Miami, Florida, United States of America
- * E-mail:
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Klempel MC, Varady KA. Reliability of leptin, but not adiponectin, as a biomarker for diet-induced weight loss in humans. Nutr Rev 2011; 69:145-54. [PMID: 21348878 DOI: 10.1111/j.1753-4887.2011.00373.x] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
Calorie restriction (CR)-induced weight loss has been shown to lower the risk of chronic disease in obese individuals. Although the mechanisms that link weight loss to disease risk reduction remain unclear, evidence suggests adipokines may play a role. What has yet to be determined, however, is the dose-response effect of body weight loss and visceral fat mass loss on adipokines. Accordingly, this review examines how varying degrees of CR-induced weight loss (i.e., >10%, 5-10%, and <5% from baseline) impact plasma levels and expression of adiponectin, leptin, resistin, interleukin 6 (IL-6), interleukin 8 (IL-8), monocyte chemotactic protein 1 (MCP-1), and retinol-binding protein 4 (RBP-4). The dose-response relationship between visceral fat mass loss and adipokine profile improvement will also be explored. Results from this review demonstrate that even mild weight loss induced by CR may have beneficial effects on leptin levels, but it has no clear impact on adiponectin, resistin, IL-6, IL-8, MCP-1, or RBP-4 concentrations.
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Affiliation(s)
- Monica C Klempel
- Department of Kinesiology and Nutrition, University of Illinois at Chicago, Chicago, Illinois 60612, USA.
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Lu J, E L, Wang W, Frontera J, Zhu H, Wang WT, Lee P, Choi IY, Brooks WM, Burns JM, Aires D, Swerdlow RH. Alternate day fasting impacts the brain insulin-signaling pathway of young adult male C57BL/6 mice. J Neurochem 2011; 117:154-63. [PMID: 21244426 DOI: 10.1111/j.1471-4159.2011.07184.x] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Dietary restriction (DR) has recognized health benefits that may extend to brain. We examined how DR affects bioenergetics-relevant enzymes and signaling pathways in the brains of C57BL/6 mice. Five-month-old male mice were placed in ad libitum or one of two repeated fasting and refeeding (RFR) groups, an alternate day (intermittent fed; IF) or alternate day plus antioxidants (blueberry, pomegranate, and green tea extracts) (IF + AO) fed group. During the 24-h fast blood glucose levels initially fell but stabilized within 6 h of starting the fast, thus avoiding frank hypoglycemia. DR in general appeared to enhance insulin sensitivity. After six weeks brain AKT and glycogen synthase kinase 3 beta phosphorylation were lower in the RFR mice, suggesting RFR reduced brain insulin-signaling pathway activity. Pathways that mediate mitochondrial biogenesis were not activated; AMP kinase phosphorylation, silent information regulator 2 phosphorylation, peroxisomal proliferator-activated receptor-gamma coactivator 1 alpha levels, and cytochrome oxidase subunit 4 levels did not change. ATP levels also did not decline, which suggests the RFR protocols did not directly impact brain bioenergetics. Antioxidant supplementation did not affect the brain parameters we evaluated. Our data indicate in young adult male C57BL/6 mice, RFR primarily affects brain energy metabolism by reducing brain insulin signaling, which potentially results indirectly as a consequence of reduced peripheral insulin production.
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Affiliation(s)
- Jianghua Lu
- Department of Neurology, University of Kansas Medical Center, Kansas City, Kansas, USA
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Odetti P, Bergamini E. Biogerontology in Italy. Biogerontology 2010; 12:61-9. [PMID: 21153704 DOI: 10.1007/s10522-010-9312-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2010] [Accepted: 11/29/2010] [Indexed: 10/18/2022]
Abstract
In this paper experimental gerontology in Italy is reviewed on the basis of research developed in Academic and non Academic Centres. There are several groups across Italy working actively on basic science of aging producing high impact papers with a significant contribution to biogerontology. Some distinguished Italian scientist working abroad is also mentioned. Interesting issues on longevity and interventions on aging (including caloric restriction) and on aging brain are quoted. Relevant studies encompass the (glyco-)oxidative stress as direct damage mechanism and main process of theory of aging, other research lines include IGF-1, mitochondria DNA, obesity/sarcopenia and exercise and also an animal model for aging studies is reported. Notwithstanding financial restrictions and structure deficit the biogerontology research in Italy could be judged as good, but additional resources are necessary to keep this good rank.
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Affiliation(s)
- Patrizio Odetti
- Department of Internal Medicine and Medical Specialties-Section of Geriatrics, University of Genova, Genoa, Italy.
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Bhutani S, Klempel MC, Berger RA, Varady KA. Improvements in coronary heart disease risk indicators by alternate-day fasting involve adipose tissue modulations. Obesity (Silver Spring) 2010; 18:2152-9. [PMID: 20300080 DOI: 10.1038/oby.2010.54] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The ability of alternate-day fasting (ADF) to modulate adipocyte parameters in a way that is protective against coronary heart disease (CHD) has yet to be tested. Accordingly, we examined the effects of ADF on adipokine profile, body composition, and CHD risk indicators in obese adults. Sixteen obese subjects (12 women/4 men) participated in a 10-week trial with three consecutive dietary intervention phases: (i) 2-week baseline control phase, (ii) 4-week ADF controlled feeding phase, and (iii) 4-week ADF self-selected feeding phase. After 8 weeks of treatment, body weight and waist circumference were reduced (P < 0.05) by 5.7 ± 0.9 kg, and 4.0 ± 0.9 cm, respectively. Fat mass decreased (P < 0.05) by 5.4 ± 0.8 kg, whereas fat-free mass did not change. Plasma adiponectin was augmented (P < 0.05) by 30% from baseline. Leptin and resistin concentrations were reduced (P < 0.05) by 21 and 23%, respectively, post treatment. Low-density lipoprotein cholesterol (LDL-C) and triacylglycerol concentrations were 25% and 32% lower (P < 0.05), respectively, after 8 weeks of ADF. High-density lipoprotein cholesterol (HDL-C), C-reactive protein, and homocysteine concentrations did not change. Decreases in LDL-C were related to increased adiponectin (r = -0.61, P = 0.01) and reduced waist circumference (r = 0.39, P = 0.04). Lower triacylglycerol concentrations were associated with augmented adiponectin (r = -0.39, P = 0.04) and reduced leptin concentrations (r = 0.45, P = 0.03) post-treatment. These findings suggest that adipose tissue parameters may play an important role in mediating the cardioprotective effects of ADF in obese humans.
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Affiliation(s)
- Surabhi Bhutani
- Department of Kinesiology and Nutrition, University of Illinois at Chicago, Chicago, Illinois, USA
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Abstract
One of the many debated topics in ageing research is whether progeroid syndromes are really accelerated forms of human ageing. The answer requires a better understanding of the normal ageing process and the molecular pathology underlying these rare diseases. Exciting recent findings regarding a severe human progeria, Hutchinson-Gilford progeria syndrome, have implicated molecular changes that are also linked to normal ageing, such as genome instability, telomere attrition, premature senescence and defective stem cell homeostasis in disease development. These observations, coupled with genetic studies of longevity, lead to a hypothesis whereby progeria syndromes accelerate a subset of the pathological changes that together drive the normal ageing process.
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Egger G, Dixon J. Inflammatory effects of nutritional stimuli: further support for the need for a big picture approach to tackling obesity and chronic disease. Obes Rev 2010; 11:137-49. [PMID: 19656309 DOI: 10.1111/j.1467-789x.2009.00644.x] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The discovery of a form of low-grade systemic inflammation (called 'metaflammation'), and the close evolutionary link between the immune and metabolic systems, poses questions about the supposed antigens (inducers) of such an immune reaction. Initially, this was thought to be mediated through obesity. However, we have identified a number of lifestyle or environmentally related inducers that may cause metaflammation, even in the absence of obesity. In this paper, the third of a series linking obesity with broad environmental and evolutionary factors, we identify nutritional stimuli with evidence of an involvement in metaflammation. From this we propose that components of certain foods and beverages with which humans have not evolved, are more often the inducers of an inflammatory effect in the body than those with which humans have become more familiar, and to which a neutral, or anti-inflammatory response may be expected to have developed. The implications of such a finding are considered in relation to broader aspects of the environment, economic growth, policy change and current global financial issues.
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Affiliation(s)
- G Egger
- Health and Applied Sciences, Southern Cross University, Lismore, NSW, Australia.
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Mattson MP. Perspective: Does brown fat protect against diseases of aging? Ageing Res Rev 2010; 9:69-76. [PMID: 19969105 DOI: 10.1016/j.arr.2009.11.004] [Citation(s) in RCA: 84] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2009] [Accepted: 11/30/2009] [Indexed: 01/01/2023]
Abstract
The most commonly studied laboratory rodents possess a specialized form of fat called brown adipose tissue (BAT) that generates heat to help maintain body temperature in cold environments. In humans, BAT is abundant during embryonic and early postnatal development, but is absent or present in relatively small amounts in adults where it is located in paracervical and supraclavicular regions. BAT cells can 'burn' fatty acid energy substrates to generate heat because they possess large numbers of mitochondria in which oxidative phosphorylation is uncoupled from ATP production as a result of a transmembrane proton leak mediated by uncoupling protein 1 (UCP1). Studies of rodents in which BAT levels are either increased or decreased have revealed a role for BAT in protection against diet-induced obesity. Data suggest that individuals with low levels of BAT are prone to obesity, insulin resistance and cardiovascular disease, whereas those with higher levels of BAT maintain lower body weights and exhibit superior health as they age. BAT levels decrease during aging, and dietary energy restriction increases BAT activity and protects multiple organ systems including the nervous system against age-related dysfunction and degeneration. Future studies in which the effects of specific manipulations of BAT levels and thermogenic activity on disease processes in animal models (diabetes, cardiovascular disease, cancers, neurodegenerative diseases) are determined will establish if and how BAT affects the development and progression of age-related diseases. Data from animal studies suggest that BAT and mitochondrial uncoupling can be targeted for interventions to prevent and treat obesity and age-related diseases. Examples include: diet and lifestyle changes; specific regimens of mild intermittent stress; drugs that stimulate BAT formation and activity; induction of brown adipose cell progenitors in muscle and other tissues; and transplantation of brown adipose cells.
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Varady KA, Bhutani S, Church EC, Klempel MC. Short-term modified alternate-day fasting: a novel dietary strategy for weight loss and cardioprotection in obese adults. Am J Clin Nutr 2009; 90:1138-43. [PMID: 19793855 DOI: 10.3945/ajcn.2009.28380] [Citation(s) in RCA: 231] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
BACKGROUND The ability of modified alternate-day fasting (ADF; ie, consuming 25% of energy needs on the fast day and ad libitum food intake on the following day) to facilitate weight loss and lower vascular disease risk in obese individuals remains unknown. OBJECTIVE This study examined the effects of ADF that is administered under controlled compared with self-implemented conditions on body weight and coronary artery disease (CAD) risk indicators in obese adults. DESIGN Sixteen obese subjects (12 women, 4 men) completed a 10-wk trial, which consisted of 3 phases: 1) a 2-wk control phase, 2) a 4-wk weight loss/ADF controlled food intake phase, and 3) a 4-wk weight loss/ADF self-selected food intake phase. RESULTS Dietary adherence remained high throughout the controlled food intake phase (days adherent: 86%) and the self-selected food intake phase (days adherent: 89%). The rate of weight loss remained constant during controlled food intake (0.67 +/- 0.1 kg/wk) and self-selected food intake phases (0.68 +/- 0.1 kg/wk). Body weight decreased (P < 0.001) by 5.6 +/- 1.0 kg (5.8 +/- 1.1%) after 8 wk of diet. Percentage body fat decreased (P < 0.01) from 45 +/- 2% to 42 +/- 2%. Total cholesterol, LDL cholesterol, and triacylglycerol concentrations decreased (P < 0.01) by 21 +/- 4%, 25 +/- 10%, and 32 +/- 6%, respectively, after 8 wk of ADF, whereas HDL cholesterol remained unchanged. Systolic blood pressure decreased (P < 0.05) from 124 +/- 5 to 116 +/- 3 mm Hg. CONCLUSION These findings suggest that ADF is a viable diet option to help obese individuals lose weight and decrease CAD risk. This trial was registered at clinicaltrials.gov as UIC-004-2009.
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Affiliation(s)
- Krista A Varady
- Department of Kinesiology and Nutrition, University of Illinois at Chicago, Chicago, IL 60612, USA.
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Bouwman FG, Claessens M, van Baak MA, Noben JP, Wang P, Saris WHM, Mariman ECM. The Physiologic Effects of Caloric Restriction Are Reflected in the in Vivo Adipocyte-Enriched Proteome of Overweight/Obese Subjects. J Proteome Res 2009; 8:5532-40. [DOI: 10.1021/pr900606m] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Freek G. Bouwman
- NUTRIM School for Nutrition, Toxicology and Metabolism, Department of Human Biology, Maastricht University Medical Centre+, P.O. Box 616, NL-6200MD Maastricht, The Netherlands, and Hasselt University, Biomedical Research Institute and Transnational University Limburg, School of Life Sciences, Diepenbeek, Belgium
| | - Mandy Claessens
- NUTRIM School for Nutrition, Toxicology and Metabolism, Department of Human Biology, Maastricht University Medical Centre+, P.O. Box 616, NL-6200MD Maastricht, The Netherlands, and Hasselt University, Biomedical Research Institute and Transnational University Limburg, School of Life Sciences, Diepenbeek, Belgium
| | - Marleen A. van Baak
- NUTRIM School for Nutrition, Toxicology and Metabolism, Department of Human Biology, Maastricht University Medical Centre+, P.O. Box 616, NL-6200MD Maastricht, The Netherlands, and Hasselt University, Biomedical Research Institute and Transnational University Limburg, School of Life Sciences, Diepenbeek, Belgium
| | - Jean-Paul Noben
- NUTRIM School for Nutrition, Toxicology and Metabolism, Department of Human Biology, Maastricht University Medical Centre+, P.O. Box 616, NL-6200MD Maastricht, The Netherlands, and Hasselt University, Biomedical Research Institute and Transnational University Limburg, School of Life Sciences, Diepenbeek, Belgium
| | - Ping Wang
- NUTRIM School for Nutrition, Toxicology and Metabolism, Department of Human Biology, Maastricht University Medical Centre+, P.O. Box 616, NL-6200MD Maastricht, The Netherlands, and Hasselt University, Biomedical Research Institute and Transnational University Limburg, School of Life Sciences, Diepenbeek, Belgium
| | - Wim H. M. Saris
- NUTRIM School for Nutrition, Toxicology and Metabolism, Department of Human Biology, Maastricht University Medical Centre+, P.O. Box 616, NL-6200MD Maastricht, The Netherlands, and Hasselt University, Biomedical Research Institute and Transnational University Limburg, School of Life Sciences, Diepenbeek, Belgium
| | - Edwin C. M. Mariman
- NUTRIM School for Nutrition, Toxicology and Metabolism, Department of Human Biology, Maastricht University Medical Centre+, P.O. Box 616, NL-6200MD Maastricht, The Netherlands, and Hasselt University, Biomedical Research Institute and Transnational University Limburg, School of Life Sciences, Diepenbeek, Belgium
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Akinpelu AO, Akinola OT, Gbiri CA. Adiposity and quality of life: a case study from an urban center in Nigeria. JOURNAL OF NUTRITION EDUCATION AND BEHAVIOR 2009; 41:347-352. [PMID: 19717118 DOI: 10.1016/j.jneb.2009.01.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2008] [Revised: 01/27/2009] [Accepted: 01/30/2009] [Indexed: 05/28/2023]
Abstract
OBJECTIVE To determine relationship between adiposity indices and quality of life (QOL) of residents of a housing estate in Lagos, Nigeria. DESIGN Cross-sectional survey employing multistep random sampling method. SETTING Urban residential estate. PARTICIPANTS This study involved 900 randomly selected residents of Abesan Housing Estate, Lagos, Nigeria. MAIN OUTCOME MEASURES Body mass index (BMI); waist circumference (WC); waist-to-hip ratio (WHR); triceps skin-fold thickness (TSFT); and abdominal skin-fold thickness (ASFT) were measured using International Standard of Anthropometric Assessment methods. QOL was assessed using Short Form-20. ANALYSIS Data were analyzed using the Pearson product moment correlation coefficient and multiple regression analysis. RESULT The mean age of participants was 37.7 +/- 14.3 years, with a range of 20 to 80 years. The mean values of adiposity indices were 24.1 +/- 4.3 kg/m(2) (BMI), 11.5 +/- 5.3 mm (TSFT), 18.5 +/- 6.2 mm (ASFT), 81.8 +/- 11.2 cm (WC), and 0.89 +/- 0.1 (WHR). Although the overall mean QOL score was 72.02 +/- 11.9, women had significantly (P < .05) lower scores (70.1 +/- 5.2) than men (73.5 +/- 11.3). There was inverse correlation between QOL and each of the age and adiposity indices. CONCLUSION AND IMPLICATIONS Quality of life of the urban-dweller Nigerians decreased with increasing body adiposity and age. This finding suggests the need to further educate the Nigerian public on the association between high body fat and poor health.
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Affiliation(s)
- Aderonke O Akinpelu
- Department of Physiotherapy, College of Medicine, University of Ibadan, Nigeria.
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Hannan JL, Maio MT, Komolova M, Adams MA. Beneficial impact of exercise and obesity interventions on erectile function and its risk factors. J Sex Med 2009; 6 Suppl 3:254-61. [PMID: 19170860 DOI: 10.1111/j.1743-6109.2008.01143.x] [Citation(s) in RCA: 70] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
INTRODUCTION Erectile dysfunction (ED) is a multifaceted disease involving cardiovascular, metabolic, and hormonal factors and affects over 100 million men worldwide. ED has been shown to be a harbinger of underlying cardiovascular diseases (CVD), as there are common risk factors (aging, hypertension, obesity) and mechanistic basis. AIM To provide an update on clinical and experimental evidence regarding the impact of lifestyle modifications, such as exercise and diet, with respect to changes in erectile function. MAIN OUTCOME MEASURES Published evidence regarding the impact of aging, hypertension, and obesity on ED and CVD, as well as new experimental data linking obesity and diminished erectile responses. METHODS We reviewed the literature regarding common risk factors of ED and CVD, particularly involving obesity, as well as performed new analysis on the findings of other experimental studies involving diet and exercise interventions. RESULTS Physical inactivity negatively impacts on erectile function, and experimental and clinical exercise interventions have been shown to improve sexual responses and overall cardiovascular health. Mediterranean-style diets and a reduction in caloric intake have been found to improve erectile function in men with the aspects of the metabolic syndrome. In addition, both clinical and experimental studies have confirmed that combining the two interventions provides additional benefit to erectile function, likely via reduced metabolic disturbances (e.g., inflammatory markers, insulin resistance), decreased visceral adipose tissue, and improvement in vascular function (e.g., increased endothelial function). CONCLUSIONS Lifestyle modifications provide significant benefits to vascular health and erectile function in a population that is increasingly aged and more obese.
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Affiliation(s)
- Johanna L Hannan
- Department of Pharmacology and Toxicology, Queen's University, Kingston, Ontario, Canada
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Cocores JA, Gold MS. The Salted Food Addiction Hypothesis may explain overeating and the obesity epidemic. Med Hypotheses 2009; 73:892-9. [PMID: 19643550 DOI: 10.1016/j.mehy.2009.06.049] [Citation(s) in RCA: 96] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2009] [Accepted: 06/28/2009] [Indexed: 11/19/2022]
Abstract
UNLABELLED One plausible explanation for the controversy that surrounds the causes and clinical management of obesity is the notion that overeating and obesity may only be a couple of "symptoms" associated with a yet to be discovered medical disorder. OBJECTIVES To introduce the Salted Food Addition Hypothesis. This theory proposes that salted food acts in the brain like an opiate agonist, producing a hedonic reward which has been perceived as being only peripherally "flavorful", "tasty" or "delicious". The Salted Food Addition Hypothesis also proposes that opiate receptor withdrawal has been perceived as "preference," "urges," "craving" or "hunger" for salted food. METHODS The Salted Food Addiction Hypothesis is made manifest by individually presenting a basic review of its primary coexisting components; the Neurological Component and the Psychosocial Component. We also designed a prospective study in order to test our hypothesis that opiate dependent subjects increase their consumption of salted food during opiate withdrawal. RESULTS The neuropsychiatric evidence integrated here suggests that salted food acts like an, albeit mild, opiate agonist which drives overeating and weight gain. The opiate dependent group studied (N=27) developed a 6.6% increase in weight during opiate withdrawal. CONCLUSIONS Salted Food may be an addictive substance that stimulates opiate and dopamine receptors in the brain's reward and pleasure center more than it is "tasty", while salted food preference, urge, craving and hunger may be manifestations of opiate withdrawal. Salted food and opiate withdrawal stimulate appetite, increases calorie consumption, augments the incidence of overeating, overweight, obesity and related illnesses. Obesity and related illnesses may be symptoms of Salted Food Addiction.
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Affiliation(s)
- James A Cocores
- Department of Psychiatry, University of Florida College of Medicine & McKnight Brain Institute, Gainesville, FL, USA.
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