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Chen H, Yang G, Chen L, Zhao Y, Yao P, Li Y, Tang Y, Li D. Dietary polyunsaturated fatty acids intake is negatively associated with hyperuricemia: The National Health and Nutrition Examination Survey 2003-2015. Nutr Metab Cardiovasc Dis 2024; 34:2203-2216. [PMID: 39003131 DOI: 10.1016/j.numecd.2024.05.026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Revised: 04/29/2024] [Accepted: 05/30/2024] [Indexed: 07/15/2024]
Abstract
BACKGROUND AND AIMS The objective of this research was to explore the associations between dietary PUFAs intake and hyperuricemia risk. METHODS AND RESULTS Based on the National Health and Nutrition Examination Survey (NHANES) 2003-2015, all eligible individuals were divided into hyperuricemia and non-hyperuricemia groups based on diagnostic criteria for hyperuricemia (serum uric acid >420 μmol/L for men and >360 μmol/L for women). Multivariate-adjusted logistic regression was employed to explore the relationship between dietary PUFAs intake and hyperuricemia risk. Total PUFAs and their subtypes were modeled to isocalorically replace saturated fatty acids (SFAs) and monounsaturated fatty acids (MUFAs). Higher intake of n-3 PUFAs, n-6 PUFAs, linoleic acid (LA), alpha-linoleic acid (ALA), and non-marine PUFAs intake correlated with decreased hyperuricemia risk, with adjusted odds ratio (OR) and 95% confidence interval (95%CIs) were 0.77 (0.63, 0.93), 0.75 (0.61, 0.92), 0.75 (0.61, 0.91), 0.69 (0.55, 0.87), and 0.73 (0.59, 0.91), respectively. Replacing 5% of total energy intake from SFAs with isocaloric PUFAs was associated with decreased odds of hyperuricemia in men (0.69 (0.57, 0.84)) and in individuals (0.81 (0.71, 0.92)). Similar trends were observed in the substitution of SFAs with non-marine PUFAs in men (0.87 (0.80, 0.94)) and in all individuals (0.92 (0.88, 0.98)). Sensitivity analyses exhibited consistent results with primary analyses. CONCLUSION Higher dietary intake of n-3 PUFAs, n-6 PUFAs, LA, ALA, and non-marine PUFAs was associated with decreased hyperuricemia risk. These results support the recommendation to substitute SFAs with PUFAs in diet.
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Affiliation(s)
- Huimin Chen
- Department of Nutrition and Food Hygiene, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Guang Yang
- Key Laboratory of Environment & Health (Huazhong University of Science and Technology), Ministry of Education, Wuhan 430030, China
| | - Li Chen
- Department of Nutrition and Food Hygiene, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Ying Zhao
- Department of Nutrition and Food Hygiene, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Ping Yao
- Department of Nutrition and Food Hygiene, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; Key Laboratory of Environment & Health (Huazhong University of Science and Technology), Ministry of Education, Wuhan 430030, China; State Environmental Protection Key Laboratory of Health Effects of Environmental Pollution, China; State Key Laboratory of Environment Health (Incubation), Wuhan 430030, China; Hubei Key Laboratory of Food Nutrition and Safety, Wuhan 430030, China
| | - Yanyan Li
- Shenzhen Center for Chronic Disease Control, 2021 Buxin Road, Shenzhen 518020, China
| | - Yuhan Tang
- Department of Nutrition and Food Hygiene, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; Key Laboratory of Environment & Health (Huazhong University of Science and Technology), Ministry of Education, Wuhan 430030, China; State Environmental Protection Key Laboratory of Health Effects of Environmental Pollution, China; State Key Laboratory of Environment Health (Incubation), Wuhan 430030, China; Hubei Key Laboratory of Food Nutrition and Safety, Wuhan 430030, China.
| | - Dongyan Li
- Department of Pharmacy, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China.
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Paoli A, Campa F. Problems and Opportunities in the use of Bioelectrical Impedance Analysis for Assessing Body Composition During Ketogenic Diets: A Scoping Review. Curr Obes Rep 2024; 13:496-509. [PMID: 38802722 PMCID: PMC11306364 DOI: 10.1007/s13679-024-00573-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 05/13/2024] [Indexed: 05/29/2024]
Abstract
PURPOSE OF THE REVIEW The use of bioelectrical impedance analysis (BIA) for monitoring body composition during the ketogenic diet has experienced a rapid surge. This scoping review aimed to assess the validity of procedures applying BIA in the ketogenic diet and to suggest best practices for optimizing its utilization. RECENT FINDINGS We conducted a systematic scoping review of peer-reviewed literature involving BIA for assessing body composition in individuals adhering to a ketogenic diet. Searches of international databases yielded 1609 unique records, 72 of which met the inclusion criteria and were reviewed. Thirty-five studies used foot-to-hand technology, 34 used standing position technology, while 3 did not declare the technology used. Raw bioelectrical parameters were reported in 21 studies. A total of 196 body mass components were estimated, but predictive equations were reported in only four cases. Most research on BIA during ketogenic diets did not report the equations used for predicting body composition, making it impossible to assess the validity of BIA outputs. Furthermore, the exceedingly low percentage of studies reporting and analyzing raw data makes it challenging to replicate methodologies in future studies, highlighting that BIA is not being utilized to its full potential. There is a need for more precise technology and device characteristics descriptions, full report of raw bioelectrical data, and predictive equations utilized. Moreover, evaluating raw data through vectorial analysis is strongly recommended. Eventually, we suggest best practices to enhance BIA outcomes during ketogenic diets.
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Affiliation(s)
- Antonio Paoli
- Department of Biomedical Sciences, University of Padua, Padua, Italy.
| | - Francesco Campa
- Department of Biomedical Sciences, University of Padua, Padua, Italy
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Fausto LL, Alberti A, Kades G, de Carvalho RPD, Freiberger V, Ventura L, Dias P, Zanoni EM, Soares BH, Dutra ML, Martins DF, Comim CM. Effects of a Ketogenic Diet on the Assessment of Biochemical and Clinical Parameters in Duchenne Muscular Dystrophy: A Preclinical Investigation. Mol Neurobiol 2024:10.1007/s12035-024-04258-6. [PMID: 38816675 DOI: 10.1007/s12035-024-04258-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Accepted: 05/22/2024] [Indexed: 06/01/2024]
Abstract
Duchenne muscular dystrophy (DMD) is an X-linked recessive disorder characterized by progressive skeletal muscle degeneration and systemic effects, including the central nervous system (CNS). This study aimed to assess the impact of a 14-day ketogenic diet (DCet) on biochemical and clinical parameters in a DMD mouse model. Young adult mice (50 days old) were fed DCet, while control groups received a standard diet. On the 14th day, memory and behavior tests were conducted, followed by biochemical evaluations of oxidative stress, inflammatory biomarkers, body weight, feed intake, and brain-derived neurotrophic factor (BDNF) levels. mdx + DCet mice showed reduced mass (0.2 g ± 2.49) and improved memory retention (p < 0.05) compared to controls. Oxidative damage in muscle tissue and CNS decreased, along with a significant cytokine level reduction (p <0.05). The protocol led to an increase in hippocampal BDNF and mitochondrial respiratory complex activity in muscle tissue and the central nervous system (CNS), while also decreasing creatine kinase activity only in the striatum. Overall, a 14-day DCet showed protective effects by improving spatial learning and memory through reductions in oxidative stress and immune response, as well as increases in BDNF levels, consistent with our study's findings.
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Affiliation(s)
- Lilian Leite Fausto
- Research Group in Neurodevelopment of Childhood and Adolescence, Laboratory of Experimental Neuroscience, Postgraduate Program in Health Sciences, University of South Santa Catarina, Avenida Pedra Branca, 25, Pedra Branca, Palhoça, SC, 88137-270, Brazil
| | - Adriano Alberti
- Research Group in Neurodevelopment of Childhood and Adolescence, Laboratory of Experimental Neuroscience, Postgraduate Program in Health Sciences, University of South Santa Catarina, Avenida Pedra Branca, 25, Pedra Branca, Palhoça, SC, 88137-270, Brazil.
| | | | | | - Viviane Freiberger
- Research Group in Neurodevelopment of Childhood and Adolescence, Laboratory of Experimental Neuroscience, Postgraduate Program in Health Sciences, University of South Santa Catarina, Avenida Pedra Branca, 25, Pedra Branca, Palhoça, SC, 88137-270, Brazil
| | - Leticia Ventura
- Research Group in Neurodevelopment of Childhood and Adolescence, Laboratory of Experimental Neuroscience, Postgraduate Program in Health Sciences, University of South Santa Catarina, Avenida Pedra Branca, 25, Pedra Branca, Palhoça, SC, 88137-270, Brazil
| | - Paula Dias
- Research Group in Neurodevelopment of Childhood and Adolescence, Laboratory of Experimental Neuroscience, Postgraduate Program in Health Sciences, University of South Santa Catarina, Avenida Pedra Branca, 25, Pedra Branca, Palhoça, SC, 88137-270, Brazil
| | | | | | - Matheus Luchini Dutra
- Research Group in Neurodevelopment of Childhood and Adolescence, Laboratory of Experimental Neuroscience, Postgraduate Program in Health Sciences, University of South Santa Catarina, Avenida Pedra Branca, 25, Pedra Branca, Palhoça, SC, 88137-270, Brazil
| | - Daniel Fernandes Martins
- Research Group in Neurodevelopment of Childhood and Adolescence, Laboratory of Experimental Neuroscience, Postgraduate Program in Health Sciences, University of South Santa Catarina, Avenida Pedra Branca, 25, Pedra Branca, Palhoça, SC, 88137-270, Brazil
| | - Clarissa Martinelli Comim
- Research Group in Neurodevelopment of Childhood and Adolescence, Laboratory of Experimental Neuroscience, Postgraduate Program in Health Sciences, University of South Santa Catarina, Avenida Pedra Branca, 25, Pedra Branca, Palhoça, SC, 88137-270, Brazil
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Chamorro F, Cassani L, Garcia-Oliveira P, Barral-Martinez M, Jorge AOS, Pereira AG, Otero P, Fraga-Corral M, P. P. Oliveira MB, Prieto MA. Health benefits of bluefin tuna consumption: ( Thunnus thynnus) as a case study. Front Nutr 2024; 11:1340121. [PMID: 38628271 PMCID: PMC11018964 DOI: 10.3389/fnut.2024.1340121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Accepted: 02/21/2024] [Indexed: 04/19/2024] Open
Abstract
Consumers are increasingly interested in food products with high nutritional value and health benefits. For instance, fish consumption is linked with diverse positive health benefits and the prevention of certain widespread disorders, such as obesity, metabolic syndrome, or cardiovascular diseases. These benefits have been attributed to its excellent nutritional value (large amounts of high-quality fatty acids, proteins, vitamins, and minerals) and bioactive compounds, while being relatively low-caloric. Atlantic bluefin tuna (Thunnus tynnus) is one of the most consumed species worldwide, motivated by its good nutritional and organoleptic characteristics. Recently, some organizations have proposed limitations on its consumption due to the presence of contaminants, mainly heavy metals such as mercury. However, several studies have reported that most specimens hold lower levels of contaminants than the established limits and that their richness in selenium effectively limits the contaminants' bioaccessibility in the human body. Considering this situation, this study aims to provide baseline data about the nutritional composition and the latest evidence regarding the beneficial effects of Atlantic bluefin tuna consumption. A review of the risk-benefit ratio was also conducted to evaluate the safety of its consumption, considering the current suggested limitations to this species' consumption.
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Affiliation(s)
- F. Chamorro
- Nutrition and Bromatology Group, Department of Analytical Chemistry and Food Science, Instituto de Agroecoloxía e Alimentación (IAA)-CITEXVI, Universidade de Vigo, Vigo, Spain
| | - L. Cassani
- Nutrition and Bromatology Group, Department of Analytical Chemistry and Food Science, Instituto de Agroecoloxía e Alimentación (IAA)-CITEXVI, Universidade de Vigo, Vigo, Spain
| | - P. Garcia-Oliveira
- Nutrition and Bromatology Group, Department of Analytical Chemistry and Food Science, Instituto de Agroecoloxía e Alimentación (IAA)-CITEXVI, Universidade de Vigo, Vigo, Spain
| | - M. Barral-Martinez
- Nutrition and Bromatology Group, Department of Analytical Chemistry and Food Science, Instituto de Agroecoloxía e Alimentación (IAA)-CITEXVI, Universidade de Vigo, Vigo, Spain
| | - A. O. S. Jorge
- Nutrition and Bromatology Group, Department of Analytical Chemistry and Food Science, Instituto de Agroecoloxía e Alimentación (IAA)-CITEXVI, Universidade de Vigo, Vigo, Spain
- REQUIMTE/Serviço de Bromatologia, Faculdade de Farmácia da Universidade do Porto, Porto, Portugal
| | - A. G. Pereira
- Nutrition and Bromatology Group, Department of Analytical Chemistry and Food Science, Instituto de Agroecoloxía e Alimentación (IAA)-CITEXVI, Universidade de Vigo, Vigo, Spain
| | - Paz Otero
- Nutrition and Bromatology Group, Department of Analytical Chemistry and Food Science, Instituto de Agroecoloxía e Alimentación (IAA)-CITEXVI, Universidade de Vigo, Vigo, Spain
| | - M. Fraga-Corral
- Nutrition and Bromatology Group, Department of Analytical Chemistry and Food Science, Instituto de Agroecoloxía e Alimentación (IAA)-CITEXVI, Universidade de Vigo, Vigo, Spain
| | | | - M. A. Prieto
- Nutrition and Bromatology Group, Department of Analytical Chemistry and Food Science, Instituto de Agroecoloxía e Alimentación (IAA)-CITEXVI, Universidade de Vigo, Vigo, Spain
- LAQV@REQUIMTE, Department of Chemical Sciences, Faculdade de Farmácia, Universidade do Porto, Porto, Portugal
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Paoli A, Cerullo G, Bianco A, Neri M, Gennaro F, Charrier D, Moro T. Not Only Protein: Dietary Supplements to Optimize the Skeletal Muscle Growth Response to Resistance Training: The Current State of Knowledge. J Hum Kinet 2024; 91:225-244. [PMID: 38689582 PMCID: PMC11057611 DOI: 10.5114/jhk/18666] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2024] [Accepted: 03/30/2024] [Indexed: 05/02/2024] Open
Abstract
Regarding skeletal muscle hypertrophy, resistance training and nutrition, the most often discussed and proposed supplements include proteins. Although, the correct amount, quality, and daily distribution of proteins is of paramount importance for skeletal muscle hypertrophy, there are many other nutritional supplements that can help and support the physiological response of skeletal muscle to resistance training in terms of muscle hypertrophy. A healthy muscle environment and a correct whole muscle metabolism response to the stress of training is a prerequisite for the increase in muscle protein synthesis and, therefore, muscle hypertrophy. In this review, we discuss the role of different nutritional supplements such as carbohydrates, vitamins, minerals, creatine, omega-3, polyphenols, and probiotics as a support and complementary factors to the main supplement i.e., protein. The different mechanisms are discussed in the light of recent evidence.
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Affiliation(s)
- Antonio Paoli
- Department of Biomedical Sciences, University of Padova, Padova, Italy
| | - Giuseppe Cerullo
- Department of Biomedical Sciences, University of Padova, Padova, Italy
| | - Antonino Bianco
- Department of Psychology, Educational Science and Human Movement, University of Palermo, Palermo, Italy
| | - Marco Neri
- Italian Fitness Federation, Ravenna, Italy
| | - Federico Gennaro
- Department of Biomedical Sciences, University of Padova, Padova, Italy
| | - Davide Charrier
- Department of Biomedical Sciences, University of Padova, Padova, Italy
| | - Tatiana Moro
- Department of Biomedical Sciences, University of Padova, Padova, Italy
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Zhou X, Wang Z, Yuan K. The effect of diet and nutrition on T cell function in cancer. Int J Cancer 2023; 153:1954-1966. [PMID: 37504380 DOI: 10.1002/ijc.34668] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Revised: 07/03/2023] [Accepted: 07/12/2023] [Indexed: 07/29/2023]
Abstract
Cancer can be considered one of the most threatening diseases to human health, and immunotherapy, especially T-cell immunotherapy, is the most promising treatment for cancers. Diet therapy is widely concerned in cancer because of its safety and fewer side effects. Many studies have shown that both the function of T cells and the progression of cancer can be affected by nutrients in the diet. In fact, it is challenging for T cells to infiltrate and eliminate cancer cells in tumor microenvironment, because of the harsh metabolic condition. The intake of different nutrients has a great influence on the proliferation, activation, differentiation and exhaustion of T cells. In this review, we summarize the effects of typical amino acids, lipids, carbohydrates and other nutritional factors on T cell functions and provide future perspectives for dietary treatment of cancer based on modifications of T cell functions.
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Affiliation(s)
- Xinyi Zhou
- Department of Liver Surgery, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Chengdu, China
- Laboratory of Liver Surgery, West China Hospital, Sichuan University, Chengdu, China
| | - Zhen Wang
- Department of Liver Surgery, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Chengdu, China
- Laboratory of Liver Surgery, West China Hospital, Sichuan University, Chengdu, China
| | - Kefei Yuan
- Department of Liver Surgery, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Chengdu, China
- Laboratory of Liver Surgery, West China Hospital, Sichuan University, Chengdu, China
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Field R, Field T, Pourkazemi F, Rooney K. Low-carbohydrate and ketogenic diets: a scoping review of neurological and inflammatory outcomes in human studies and their relevance to chronic pain. Nutr Res Rev 2023; 36:295-319. [PMID: 35438071 DOI: 10.1017/s0954422422000087] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Dietary restriction of carbohydrate has been demonstrated to be beneficial for nervous system dysfunction in animal models and may be beneficial for human chronic pain. The purpose of this review is to assess the impact of a low-carbohydrate/ketogenic diet on the adult nervous system function and inflammatory biomarkers to inform nutritional research for chronic pain. An electronic database search was carried out in May 2021. Publications were screened for prospective research with dietary carbohydrate intake <130 g per day and duration of ≥2 weeks. Studies were categorised into those reporting adult neurological outcomes to be extracted for analysis and those reporting other adult research outcomes. Both groups were screened again for reported inflammatory biomarkers. From 1548 studies, there were 847 studies included. Sixty-four reported neurological outcomes with 83% showing improvement. Five hundred and twenty-three studies had a different research focus (metabolic n = 394, sport/performance n = 51, cancer n = 33, general n = 30, neurological with non-neuro outcomes n = 12, or gastrointestinal n = 4). The second screen identified sixty-three studies reporting on inflammatory biomarkers, with 71% reporting a reduction in inflammation. The overall results suggest a favourable outcome on the nervous system and inflammatory biomarkers from a reduction in dietary carbohydrates. Both nervous system sensitisation and inflammation occur in chronic pain, and the results from this review indicate it may be improved by low-carbohydrate nutritional therapy. More clinical trials within this population are required to build on the few human trials that have been done.
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Affiliation(s)
- Rowena Field
- Faculty of Medicine and Health, The University of Sydney, Sydney, Australia
| | - Tara Field
- The New South Wales Ministry of Health (NSW Health), Sydney, Australia
| | | | - Kieron Rooney
- Faculty of Medicine and Health, The University of Sydney, Sydney, Australia
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Khandouzi N, Zahedmehr A, Asadian S, Nasrollahzadeh J. Effects of olive oil and flaxseed consumption in a healthy diet on endothelial function, plasma lipids and inflammatory factors of patients with coronary heart disease: a randomized clinical trial. Coron Artery Dis 2023; 34:332-340. [PMID: 37335239 DOI: 10.1097/mca.0000000000001259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/21/2023]
Abstract
OBJECTIVES A healthy lifestyle, including a healthy diet has been associated with an improvement in cardiovascular risk factors. The aim of the present study was to assess the effect of olive oil and flaxseed consumption as part of a healthy diet on endothelial function, plasma inflammatory factors, and lipid profile in patients with coronary heart disease (CHD). METHOD This randomized nonblinded trial was performed on CHD patients. In the control group, participants received general heart-healthy dietary recommendations while in the intervention group, in addition to these recommendations, the participants consumed 25 ml of olive oil and 30 g of flaxseeds daily for 3 months. At baseline and after 3 months, changes in brachial flow-mediated dilation (FMD), plasma asymmetric dimethyl arginine, interleukin-6 (IL-6), IL-10, high-sensitivity C-reactive protein (hs-CRP), tumor necrosis factor-α (TNF-α), monocyte chemoattractant protein-1 (MCP-1), and lipids and lipoproteins were measured. RESULTS A total of 50 patients finished the trial ( n = 24 in the intervention and n = 26 in the control groups). Compared to the control group, consumption of flaxseed and olive oil significantly improved brachial artery FMD%, and reduced plasma IL-6, TNF-α, MCP-1, total cholesterol, and tended to reduce hs-CRP, and non-HDL-cholesterol but the concentration of other study indices were not different between the two groups. CONCLUSION Inclusion of olive oil and flaxseed in the diet of CHD patients may contribute to secondary prevention by improving endothelial function and plasma inflammatory factors.
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Affiliation(s)
- Nafiseh Khandouzi
- Department of Clinical Nutrition and Dietetics, Faculty of Nutrition Sciences and Food Technology, Shahid Beheshti University of Medical Sciences
| | | | - Sanaz Asadian
- Department of Radiology, Rajaie Cardiovascular, Medical & Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Javad Nasrollahzadeh
- Department of Clinical Nutrition and Dietetics, Faculty of Nutrition Sciences and Food Technology, Shahid Beheshti University of Medical Sciences
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Dyńka D, Kowalcze K, Charuta A, Paziewska A. The Ketogenic Diet and Cardiovascular Diseases. Nutrients 2023; 15:3368. [PMID: 37571305 PMCID: PMC10421332 DOI: 10.3390/nu15153368] [Citation(s) in RCA: 19] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Revised: 07/24/2023] [Accepted: 07/27/2023] [Indexed: 08/13/2023] Open
Abstract
The most common and increasing causes of death worldwide are cardiovascular diseases (CVD). Taking into account the fact that diet is a key factor, it is worth exploring this aspect of CVD prevention and therapy. The aim of this article is to assess the potential of the ketogenic diet in the prevention and treatment of CVD. The article is a comprehensive, meticulous analysis of the literature in this area, taking into account the most recent studies currently available. The ketogenic diet has been shown to have a multifaceted effect on the prevention and treatment of CVD. Among other aspects, it has a beneficial effect on the blood lipid profile, even compared to other diets. It shows strong anti-inflammatory and cardioprotective potential, which is due, among other factors, to the anti-inflammatory properties of the state of ketosis, the elimination of simple sugars, the restriction of total carbohydrates and the supply of omega-3 fatty acids. In addition, ketone bodies provide "rescue fuel" for the diseased heart by affecting its metabolism. They also have a beneficial effect on the function of the vascular endothelium, including improving its function and inhibiting premature ageing. The ketogenic diet has a beneficial effect on blood pressure and other CVD risk factors through, among other aspects, weight loss. The evidence cited is often superior to that for standard diets, making it likely that the ketogenic diet shows advantages over other dietary models in the prevention and treatment of cardiovascular diseases. There is a legitimate need for further research in this area.
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Affiliation(s)
| | | | | | - Agnieszka Paziewska
- Institute of Health Sciences, Faculty of Medical and Health Sciences, Siedlce University of Natural Sciences and Humanities, 08-110 Siedlce, Poland; (D.D.); (K.K.); (A.C.)
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Paoli A, Bianco A, Moro T, Mota JF, Coelho-Ravagnani CF. The Effects of Ketogenic Diet on Insulin Sensitivity and Weight Loss, Which Came First: The Chicken or the Egg? Nutrients 2023; 15:3120. [PMID: 37513538 PMCID: PMC10385501 DOI: 10.3390/nu15143120] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Revised: 07/05/2023] [Accepted: 07/06/2023] [Indexed: 07/30/2023] Open
Abstract
The ketogenic diet (KD) is, nowadays, considered an interesting nutritional approach for weight loss and improvement in insulin resistance. Nevertheless, most of the studies available in the literature do not allow a clear distinction between its effects on insulin sensitivity per se, and the effects of weight loss induced by KDs on insulin sensitivity. In this review, we discuss the scientific evidence on the direct and weight loss mediated effects of KDs on glycemic status in humans, describing the KD's biochemical background and the underlying mechanisms.
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Affiliation(s)
- Antonio Paoli
- Department of Biomedical Sciences, University of Padua, 35127 Padua, Italy
- Research Center for High Performance Sport, UCAM, Catholic University of Murcia, 30107 Murcia, Spain
| | - Antonino Bianco
- Sport and Exercise Sciences Research Unit, University of Palermo, 90144 Palermo, Italy
| | - Tatiana Moro
- Department of Biomedical Sciences, University of Padua, 35127 Padua, Italy
| | - Joao Felipe Mota
- School of Nutrition, Federal University of Goiás, Goiânia 74605-080, Brazil
- APC Microbiome Ireland, Department of Medicine, School of Microbiology, University College Cork, T12 YT20 Cork, Ireland
| | - Christianne F Coelho-Ravagnani
- Research in Exercise and Nutrition in Health and Sports Performance-PENSARE, Post-Graduate Program in Movement Sciences, Institute of Health (INISA), Federal University of Mato Grosso do Sul, Campo Grande 79070-900, Brazil
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11
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Qin Y, Bai D, Tang M, Zhang M, Zhao L, Li J, Yang R, Jiang G. Ketogenic Diet Alleviates Brain Iron Deposition and Cognitive Dysfunction via Nrf2-mediated Ferroptosis pathway in APP/PS1 Mouse. Brain Res 2023; 1812:148404. [PMID: 37164173 DOI: 10.1016/j.brainres.2023.148404] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Revised: 04/26/2023] [Accepted: 05/06/2023] [Indexed: 05/12/2023]
Abstract
Progressive cognitive decline and increased brain iron deposition with age are important features of Alzheimer's disease. Previous studies have found that the short-term ketogenic diet has neuroprotective effects in a variety of neurodegenerative diseases, but the effects of an early and long-term ketogenic diet on brain iron content and cognition of Alzheimer's disease have not been reported. In our study, 8-week-old APP/PS1 mice were given a 12-month ketogenic or standard diet, while C57BL/6 mice matched with the age and genetic background of APP/PS1 mice were used as normal controls to be given a standard diet for the same length of time. We found that 12 months of an early ketogenic diet improved the impaired learning and memory ability of APP/PS1 mice. The improvement of cognitive function may be related to the reduction of amyloid-beta deposition and neuronal ferroptosis. The mechanism was achieved by the regulation of ferroptosis-related pathways after activation of nuclear factor erythroid 2-related factor 2 by ketogenic diet-induced elevated β-hydroxybutyrate. In addition, blood biochemical results showed that compared with the standard diet group of the disease, although the early and long-term ketogenic diet increased blood lipids to some extent, it seemed to reduce liver, renal, and myocardial damage caused by genetic differences. This will provide a piece of positive evidence for the early and long-term use of ketogenic diets in people at risk of Alzheimer's disease.
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Affiliation(s)
- Yaya Qin
- Department of Neurology, Affiliated Hospital of North Sichuan Medical College, 1 South Maoyuan Road, Nanchong 637000, Sichuan, China; Institute of Neurological Diseases, North Sichuan Medical College, 234 Fujiang Road, Nanchong, Sichuan, China
| | - Dazhang Bai
- Department of Neurology, Affiliated Hospital of North Sichuan Medical College, 1 South Maoyuan Road, Nanchong 637000, Sichuan, China; Institute of Neurological Diseases, North Sichuan Medical College, 234 Fujiang Road, Nanchong, Sichuan, China
| | - Ming Tang
- Department of Neurology, Affiliated Hospital of North Sichuan Medical College, 1 South Maoyuan Road, Nanchong 637000, Sichuan, China; Institute of Neurological Diseases, North Sichuan Medical College, 234 Fujiang Road, Nanchong, Sichuan, China
| | - Ming Zhang
- Department of Neurology, Affiliated Hospital of North Sichuan Medical College, 1 South Maoyuan Road, Nanchong 637000, Sichuan, China; Institute of Neurological Diseases, North Sichuan Medical College, 234 Fujiang Road, Nanchong, Sichuan, China
| | - Li Zhao
- Department of Neurology, Affiliated Hospital of North Sichuan Medical College, 1 South Maoyuan Road, Nanchong 637000, Sichuan, China; Institute of Neurological Diseases, North Sichuan Medical College, 234 Fujiang Road, Nanchong, Sichuan, China
| | - Jia Li
- Department of Neurology, Affiliated Hospital of North Sichuan Medical College, 1 South Maoyuan Road, Nanchong 637000, Sichuan, China; Institute of Neurological Diseases, North Sichuan Medical College, 234 Fujiang Road, Nanchong, Sichuan, China
| | - Rui Yang
- Department of Neurology, Affiliated Hospital of North Sichuan Medical College, 1 South Maoyuan Road, Nanchong 637000, Sichuan, China; Institute of Neurological Diseases, North Sichuan Medical College, 234 Fujiang Road, Nanchong, Sichuan, China
| | - Guohui Jiang
- Department of Neurology, Affiliated Hospital of North Sichuan Medical College, 1 South Maoyuan Road, Nanchong 637000, Sichuan, China; Institute of Neurological Diseases, North Sichuan Medical College, 234 Fujiang Road, Nanchong, Sichuan, China.
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Kysel P, Haluzíková D, Pleyerová I, Řezníčková K, Laňková I, Lacinová Z, Havrlantová T, Mráz M, Kasperová BJ, Kovářová V, Thieme L, Trnovská J, Svoboda P, Hubáčková SŠ, Vilikus Z, Haluzík M. Different Effects of Cyclical Ketogenic vs. Nutritionally Balanced Reduction Diet on Serum Concentrations of Myokines in Healthy Young Males Undergoing Combined Resistance/Aerobic Training. Nutrients 2023; 15:nu15071720. [PMID: 37049560 PMCID: PMC10096784 DOI: 10.3390/nu15071720] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Revised: 03/21/2023] [Accepted: 03/29/2023] [Indexed: 04/03/2023] Open
Abstract
Myokines represent important regulators of muscle metabolism. Our study aimed to explore the effects of a cyclical ketogenic reduction diet (CKD) vs. a nutritionally balanced reduction diet (RD) combined with regular resistance/aerobic training in healthy young males on serum concentrations of myokines and their potential role in changes in physical fitness. Twenty-five subjects undergoing regular resistance/aerobic training were randomized to the CKD (n = 13) or RD (n = 12) groups. Anthropometric and spiroergometric parameters, muscle strength, biochemical parameters, and serum concentrations of myokines and cytokines were assessed at baseline and after 8 weeks of intervention. Both diets reduced body weight, body fat, and BMI. Muscle strength and endurance performance were improved only by RD. Increased musclin (32.9 pg/mL vs. 74.5 pg/mL, p = 0.028) and decreased osteonectin levels (562 pg/mL vs. 511 pg/mL, p = 0.023) were observed in RD but not in the CKD group. In contrast, decreased levels of FGF21 (181 pg/mL vs. 86.4 pg/mL, p = 0.003) were found in the CKD group only. Other tested myokines and cytokines were not significantly affected by the intervention. Our data suggest that changes in systemic osteonectin and musclin levels could contribute to improved muscle strength and endurance performance and partially explain the differential effects of CKD and RD on physical fitness.
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Affiliation(s)
- Pavel Kysel
- Department of Sports Medicine, First Faculty of Medicine and General University Hospital, 128 08 Prague, Czech Republic
| | - Denisa Haluzíková
- Department of Sports Medicine, First Faculty of Medicine and General University Hospital, 128 08 Prague, Czech Republic
| | - Iveta Pleyerová
- Centre for Experimental Medicine, Institute for Clinical and Experimental Medicine, 140 21 Prague, Czech Republic
| | - Kateřina Řezníčková
- Diabetes Centre, Institute for Clinical and Experimental Medicine, 140 21 Prague, Czech Republic
| | - Ivana Laňková
- Diabetes Centre, Institute for Clinical and Experimental Medicine, 140 21 Prague, Czech Republic
| | - Zdeňka Lacinová
- Centre for Experimental Medicine, Institute for Clinical and Experimental Medicine, 140 21 Prague, Czech Republic
- Institute of Medical Biochemistry and Laboratory Diagnostics, First Faculty of Medicine, Charles University and General University Hospital, 121 11 Prague, Czech Republic
| | - Tereza Havrlantová
- Centre for Experimental Medicine, Institute for Clinical and Experimental Medicine, 140 21 Prague, Czech Republic
| | - Miloš Mráz
- Diabetes Centre, Institute for Clinical and Experimental Medicine, 140 21 Prague, Czech Republic
| | - Barbora Judita Kasperová
- Diabetes Centre, Institute for Clinical and Experimental Medicine, 140 21 Prague, Czech Republic
| | - Viktorie Kovářová
- Diabetes Centre, Institute for Clinical and Experimental Medicine, 140 21 Prague, Czech Republic
| | - Lenka Thieme
- Diabetes Centre, Institute for Clinical and Experimental Medicine, 140 21 Prague, Czech Republic
| | - Jaroslava Trnovská
- Centre for Experimental Medicine, Institute for Clinical and Experimental Medicine, 140 21 Prague, Czech Republic
| | - Petr Svoboda
- Centre for Experimental Medicine, Institute for Clinical and Experimental Medicine, 140 21 Prague, Czech Republic
- Department of Biochemistry and Microbiology, University of Chemistry and Technology Prague, Technicka 5, 166 28 Prague, Czech Republic
| | - Soňa Štemberková Hubáčková
- Centre for Experimental Medicine, Institute for Clinical and Experimental Medicine, 140 21 Prague, Czech Republic
| | - Zdeněk Vilikus
- Department of Sports Medicine, First Faculty of Medicine and General University Hospital, 128 08 Prague, Czech Republic
- Correspondence: (Z.V.); (M.H.)
| | - Martin Haluzík
- Diabetes Centre, Institute for Clinical and Experimental Medicine, 140 21 Prague, Czech Republic
- Institute of Medical Biochemistry and Laboratory Diagnostics, First Faculty of Medicine, Charles University and General University Hospital, 121 11 Prague, Czech Republic
- Correspondence: (Z.V.); (M.H.)
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Small Intestinal Bacterial Overgrowth and Non-Alcoholic Fatty Liver Disease: What Do We Know in 2023? Nutrients 2023; 15:nu15061323. [PMID: 36986052 PMCID: PMC10052062 DOI: 10.3390/nu15061323] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Revised: 02/27/2023] [Accepted: 03/03/2023] [Indexed: 03/11/2023] Open
Abstract
Non-alcoholic fatty liver disease (NAFLD) is a chronic liver disease associated with the pathological accumulation of lipids inside hepatocytes. Untreated NAFL can progress to non-alcoholic hepatitis (NASH), followed by fibrosis, cirrhosis, and hepatocellular carcinoma (HCC). The common denominator of the above-mentioned metabolic disorders seems to be insulin resistance, which occurs in NAFLD patients. Obesity is the greatest risk factor for lipid accumulation inside hepatocytes, but a part of the NAFLD patient population has a normal body weight according to the BMI index. Obese people with or without NAFLD have a higher incidence of small intestinal bacterial overgrowth (SIBO), and those suffering from NAFLD show increased intestinal permeability, including a more frequent presence of bacterial overgrowth in the small intestine (SIBO). The health consequences of SIBO are primarily malabsorption disorders (vitamin B12, iron, choline, fats, carbohydrates and proteins) and bile salt deconjugation. Undetected and untreated SIBO may lead to nutrient and/or energy malnutrition, thus directly impairing liver function (e.g., folic acid and choline deficiency). However, whether SIBO contributes to liver dysfunction, decreased intestinal barrier integrity, increased inflammation, endotoxemia and bacterial translocation is not yet clear. In this review, we focus on gut–liver axis and discuss critical points, novel insights and the role of nutrition, lifestyle, pre- and probiotics, medication and supplements in the therapy and prevention of both SIBO and NAFLD.
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Diet-Induced Microbiome's Impact on Heart Failure: A Double-Edged Sword. Nutrients 2023; 15:nu15051223. [PMID: 36904222 PMCID: PMC10004801 DOI: 10.3390/nu15051223] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 02/24/2023] [Accepted: 02/25/2023] [Indexed: 03/06/2023] Open
Abstract
Heart failure (HF) is a debilitating disease with a significant clinical and economic impact worldwide. Multiple factors seem to increase the risk of developing HF, such as hypertension, obesity and diabetes. Since chronic inflammation plays a significant role in HF pathophysiology and gut dysbiosis is associated with low-grade chronic inflammation, the risk of cardiovascular diseases is likely modulated by the gut microbiome (GM). Considerable progress has been made in HF management. However, there is a need to find new strategies to reduce mortality and increase the quality of life, mainly of HFpEF patients, since its prevalence continues to rise. Recent studies validate that lifestyle changes, such as diet modulation, represent a potential therapeutic approach to improve several cardiometabolic diseases, although their effects on the GM and its indirect cardiac impact still warrant further research. Hence, in this paper, we aim to clarify the link between HF and the human microbiome.
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Du Y, Oh C, No J. Effects of the ketogenic diet on components of the metabolic syndrome: A systematic review and meta-analysis. NUTR CLIN METAB 2023. [DOI: 10.1016/j.nupar.2022.11.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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Mancin L, Amatori S, Caprio M, Sattin E, Bertoldi L, Cenci L, Sisti D, Bianco A, Paoli A. Effect of 30 days of ketogenic Mediterranean diet with phytoextracts on athletes' gut microbiome composition. Front Nutr 2022; 9:979651. [DOI: 10.3389/fnut.2022.979651] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Accepted: 09/21/2022] [Indexed: 11/13/2022] Open
Abstract
BackgroundRecent research suggest that gut microbiome may play a fundamental role in athlete's health and performance. Interestingly, nutrition can affect athletic performance by influencing the gut microbiome composition. Among different dietary patterns, ketogenic diet represents an efficient nutritional approach to get adequate body composition in athletes, however, some concerns have been raised about its potential detrimental effect on gut microbiome. To the best of our knowledge, only one study investigated the effect of ketogenic diet on the gut microbiome in athletes (elite race walkers), whilst no studies are available in a model of mixed endurance/power sport such as soccer. This study aimed to investigate the influence of a ketogenic Mediterranean diet with phytoextracts (KEMEPHY) diet on gut microbiome composition in a cohort of semi-professional soccer players.Methods16 male soccer players were randomly assigned to KEMEPHY diet (KDP n = 8) or western diet (WD n = 8). Body composition, performance measurements and gut microbiome composition were measured before and after 30 days of intervention by 16S rRNA amplicon sequencing. Alpha-diversity measures and PERMANOVA was used to investigate pre-post differences in the relative abundance of all taxonomic levels (from phylum to genus) and Spearman's correlations was used to investigate associations between microbial composition and macronutrient intake. Linear discriminant analysis was also performed at the different taxonomic levels on the post-intervention data.ResultsNo differences were found between pre and post- dietary intervention for microbial community diversity: no significant effects of time (p = 0.056, ES = 0.486 and p = 0.129, ES = 0.388, respectively for OTUs number and Shannon's ENS), group (p = 0.317, ES = 0.180 and p = 0.809, ES = 0.047) or time × group (p = 0.999, ES = 0.01 and p = 0.230, ES = 0.315). Post-hoc paired Wilcoxon test showed a significant time × group effect for Actinobacteriota (p = 0.021, ES = 0.578), which increased in the WD group (median pre: 1.7%; median post: 2.3%) and decreased in the KEMEPHY group (median pre: 4.3%; median post: 1.7%). At genus level, the linear discriminant analysis in the post intervention differentiated the two groups for Bifidobacterium genus (pertaining to the Actinobacteria phylum), Butyricicoccus and Acidaminococcus genera, all more abundant in the WD group, and for Clostridia UCG-014 (order, family, and genus), Butyricimonas, Odoribacterter genera (pertaining to the Marinifilaceae family), and Ruminococcus genus, all more abundant in the KEMEPHY group.ConclusionsOur results demonstrate that 30 days of KEMEPHY intervention, in contrast with previous research on ketogenic diet and gut microbiome, do not modify the overall composition of gut microbiome in a cohort of athletes. KEMEPHY dietary pattern may represent an alternative and safety tool for maintaining and/or regulating the composition of gut microbiome in athletes practicing regular exercise. Due to the fact that not all ketogenic diets are equal, we hypothesized that each version of ketogenic diet, with different kind of nutrients or macronutrients partitioning, may differently affect the human gut microbiome.
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Abstract
Obesity remains a serious relevant public health concern throughout the world despite related countermeasures being well understood (i.e. mainly physical activity and an adjusted diet). Among different nutritional approaches, there is a growing interest in ketogenic diets (KD) to manipulate body mass (BM) and to enhance fat mass loss. KD reduce the daily amount of carbohydrate intake drastically. This results in increased fatty acid utilisation, leading to an increase in blood ketone bodies (acetoacetate, 3-β-hydroxybutyrate and acetone) and therefore metabolic ketosis. For many years, nutritional intervention studies have focused on reducing dietary fat with little or conflicting positive results over the long term. Moreover, current nutritional guidelines for athletes propose carbohydrate-based diets to augment muscular adaptations. This review discusses the physiological basis of KD and their effects on BM reduction and body composition improvements in sedentary individuals combined with different types of exercise (resistance training or endurance training) in individuals with obesity and athletes. Ultimately, we discuss the strengths and the weaknesses of these nutritional interventions together with precautionary measures that should be observed in both individuals with obesity and athletic populations. A literature search from 1921 to April 2021 using Medline, Google Scholar, PubMed, Web of Science, Scopus and Sportdiscus Databases was used to identify relevant studies. In summary, based on the current evidence, KD are an efficient method to reduce BM and body fat in both individuals with obesity and athletes. However, these positive impacts are mainly because of the appetite suppressive effects of KD, which can decrease daily energy intake. Therefore, KD do not have any superior benefits to non-KD in BM and body fat loss in individuals with obesity and athletic populations in an isoenergetic situation. In sedentary individuals with obesity, it seems that fat-free mass (FFM) changes appear to be as great, if not greater, than decreases following a low-fat diet. In terms of lean mass, it seems that following a KD can cause FFM loss in resistance-trained individuals. In contrast, the FFM-preserving effects of KD are more efficient in endurance-trained compared with resistance-trained individuals.
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Fish Oil Enriched n-3 Polyunsaturated Fatty Acids Improve Ketogenic Low-Carbohydrate/High-Fat Diet-Caused Dyslipidemia, Excessive Fat Accumulation, and Weight Control in Rats. Nutrients 2022; 14:nu14091796. [PMID: 35565762 PMCID: PMC9101890 DOI: 10.3390/nu14091796] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Revised: 04/20/2022] [Accepted: 04/25/2022] [Indexed: 02/04/2023] Open
Abstract
Low-carbohydrate and high-fat diets have been used for body weight (BW) control, but their adverse effects on lipid profiles have raised concern. Fish oil (FO), rich in omega-3 polyunsaturated fatty acids, has profound effects on lipid metabolism. We hypothesized that FO supplementation might improve the lipid metabolic disturbance elicited by low-carbohydrate and high-fat diets. Male SD rats were randomized into normal control diet (NC), high-fat diet (HF), and low-carbohydrate/high-fat diet (LC) groups in experiment 1, and NC, LC, LC + 5% FO (5CF), and LC + 10% FO diet (10CF) groups in experiment 2. The experimental duration was 11 weeks. In the LC group, a ketotic state was induced, and food intake was decreased; however, it did not result in BW loss compared to either the HF or NC groups. In the 5CF group, rats lost significant BW. Dyslipidemia, perirenal and epididymal fat accumulation, hepatic steatosis, and increases in triglyceride and plasma leptin levels were observed in the LC group but were attenuated by FO supplementation. These findings suggest that a ketogenic low-carbohydrate/high-fat diet with no favorable effect on body weight causes visceral and liver lipid accumulation. FO supplementation not only aids in body weight control but also improves lipid metabolism in low-carbohydrate/high-fat diet-fed rats.
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Aromatic Acids and Leucine Derivatives Produced from the Deep-Sea Actinomycetes Streptomyceschumphonensis SCSIO15079 with Antihyperlipidemic Activities. Mar Drugs 2022; 20:md20040259. [PMID: 35447932 PMCID: PMC9026450 DOI: 10.3390/md20040259] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Revised: 04/03/2022] [Accepted: 04/05/2022] [Indexed: 02/06/2023] Open
Abstract
Six new aromatic acids (1–6) and three new leucine derivatives containing an unusual oxime moiety (7–9) were isolated and identified from the deep-sea-derived actinomycetes strain Streptomyces chumphonensis SCSIO15079, together with two known compounds (10–11). The structures of 1–9 including absolute configurations were determined by detailed NMR, MS, and experimental and calculated electronic circular dichroism spectroscopic analyses. Compounds 1–9 were evaluated for their antimicrobial and cytotoxicity activities, as well as their effects on intracellular lipid accumulation in HepG2 cells. Compounds 3 and 4, with the most potent inhibitory activity on intracellular lipid accumulation at 10 μM, were revealed with potential antihyperlipidemic effects, although the mechanism needs to be further studied.
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Pak M, Bozkurt S, Pınarbaşı A, Öz Arslan D, Aksungar FB. Effects of Prolonged Intermittent Fasting Model on Energy Metabolism and Mitochondrial Functions in Neurons. Ann Neurosci 2022; 29:21-31. [PMID: 35875426 PMCID: PMC9305913 DOI: 10.1177/09727531211072303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Accepted: 11/29/2021] [Indexed: 11/17/2022] Open
Abstract
Background: Calorie restriction (CR) during daily nutrition has been shown to affect the prognosis of many chronic diseases such as metabolic syndrome, diabetes, and aging. As an alternative nutrition model, prolonged intermittent fasting (PF) in humans is defined by the absence of food for more than 12 h. In our previous human studies, CR and PF models were compared and it was concluded that the two models might have differences in signal transduction mechanisms. We have investigated the effects of these models on neurons at the molecular level in this study. Methods: Neurons (SH-SY5Y) were incubated with normal medium (N), calorie-restricted medium (CR), fasting medium (PF), and glucose-free medium (G0) for 16 h. Simultaneously, ketone (beta-hydroxybutyrate; bOHB) was added to other experiment flasks containing the same media. Concentrations of lactate, lactate dehydrogenase (LDH), bOHB, and glucose were measured to demonstrate the changes in the energy metabolism together with the mitochondrial functions of cells. Citrate synthase activity and flow cytometric mitochondrial functions were investigated. Results: At the end of incubations, lactate and LDH levels were decreased and mitochondrial activity was increased in all ketone-added groups (P < .01) regardless of the glucose concentration in the environment. In the fasting model, these differences were more prominent. Conclusion: Our results demonstrated that neurons use ketones regardless of the amount of glucose, and bOHB-treated cells had positive changes in mitochondrial function. We conclude that the presence of bOHB might reverse neuron damage and that exogenous ketone treatment may be beneficial in the treatment of neurological diseases in the future.
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Affiliation(s)
- Meltem Pak
- Department of Medical Biochemistry, Acıbadem Mehmet Ali Aydınlar University School of Medicine, Istanbul, Turkey
| | - Süleyman Bozkurt
- Department of Biophysics, Acıbadem Mehmet Ali Aydınlar University School of Medicine, Istanbul, Turkey
| | - Arzu Pınarbaşı
- Department of Medical Biochemistry, Acıbadem Mehmet Ali Aydınlar University School of Medicine, Istanbul, Turkey
| | - Devrim Öz Arslan
- Department of Biophysics, Acıbadem Mehmet Ali Aydınlar University School of Medicine, Istanbul, Turkey
| | - Fehime Benli Aksungar
- Department of Medical Biochemistry, Acıbadem Mehmet Ali Aydınlar University School of Medicine, Istanbul, Turkey
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da Mota Santana J, Pereira M, Carvalho GQ, dos Santos DB, Oliveira AM. Long-Chain Polyunsaturated Fatty Acid Concentrations and Association with Weight Gain in Pregnancy. Nutrients 2021; 14:nu14010128. [PMID: 35011002 PMCID: PMC8746780 DOI: 10.3390/nu14010128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Revised: 12/20/2021] [Accepted: 12/25/2021] [Indexed: 12/02/2022] Open
Abstract
Lower concentrations of omega-3 (ω-3) and higher concentrations of omega-6 (ω-6) have been associated with excess weight in adults; however, the information on this relationship in pregnancy remains in its infancy. This study aimed to investigate the association between plasma levels of ω-3 and ω-6 long-chain polyunsaturated fatty acids (PUFAs) and weight gain during the gestational period. This is a prospective cohort study involving 185 pregnant women registered with the prenatal services of a municipality in the northeast of Brazil. The dosage of the serum concentration of fatty acids and the anthropometric measurements were carried out at the baseline, and the women’s weight information in the first, second, and third trimesters was collected from their pregnancy cards. Serum fatty acids were determined with the help of gas chromatography. The response variable of this study is the latent variable weight gain in pregnancy, derived from three variables: gestational weight in the first, second, and third trimesters. The main exposure was the plasma concentrations of PUFAs. Structural equation modeling was used for the data analysis. The mean age of the pregnant women was 26.74 years old (SD: 5.96 years). Most of the women had not completed high school (84%) and had a low income (70.86%). It was observed that the ω-3 PUFAs, represented by ALA plasm (alpha-linolenic acid), DHA (docosahexaenoic acid), and the EPA/ALA ratio (eicosapentaenoic acid to alpha-linolenic acid ratio), were negatively associated with the weight gain during pregnancy construct (−0.20, −0.12, and −0.14, respectively). Meanwhile, the PUFAs represented by the ratio between the ω-6 category acids ARA and LA (arachidonic acid and linoleic acid) had a direct and positive association (0.22) with that construct. Excess maternal weight gain was associated with ω-3 and ω-6 plasma levels. The women with the greatest gestational weight gain were the ones that presented the highest ARA/LA ratio (ω-6) and the lowest plasma concentrations of ALA, DHA, and EPA/ALA ratio (ω-3).
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Affiliation(s)
- Jerusa da Mota Santana
- Center of Health Sciences, Universidade Federal do Recôncavo da Bahia, Avenida Carlos Amaral, R. do Cajueiro, 1015, Santo Antonio de Jesus 44574-490, Brazil;
- Collective Health Institute, Universidade Federal da Bahia, Rua Basílio da Gama, s/n—Canela, Salvador 40110-040, Brazil;
- Correspondence: ; Tel.: +55-(75)-988537636
| | - Marcos Pereira
- Collective Health Institute, Universidade Federal da Bahia, Rua Basílio da Gama, s/n—Canela, Salvador 40110-040, Brazil;
| | - Gisele Queiroz Carvalho
- Campus Avançado de Governador Valadares, Universidade Federal de Juiz de Fora, Governador Valadares 35010-17, Brazil;
| | - Djanilson Barbosa dos Santos
- Center of Health Sciences, Universidade Federal do Recôncavo da Bahia, Avenida Carlos Amaral, R. do Cajueiro, 1015, Santo Antonio de Jesus 44574-490, Brazil;
| | - Ana Marlucia Oliveira
- Collective Health Institute, Universidade Federal da Bahia, Rua Basílio da Gama, s/n—Canela, Salvador 40110-040, Brazil;
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Tzenios N, Lewis ED, Crowley DC, Chahine M, Evans M. Examining the Efficacy of a Very-Low-Carbohydrate Ketogenic Diet on Cardiovascular Health in Adults with Mildly Elevated Low-Density Lipoprotein Cholesterol in an Open-Label Pilot Study. Metab Syndr Relat Disord 2021; 20:94-103. [PMID: 34918971 PMCID: PMC8972001 DOI: 10.1089/met.2021.0042] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Background: The objective of this open-label pilot study was to investigate the efficacy of a very-low-carbohydrate ketogenic diet (VLCKD), known as Nic's Ketogenic Diet, for 140 days on cardiometabolic markers in healthy adults with mildly elevated low-density lipoprotein cholesterol (LDL-C). Methods: Study assessments were conducted at Day 0, 28, 56, 70, 84, 112, and 140, and weight and blood pressure (BP) were measured and fasting blood was collected for analysis of plasma lipids. A DEXA scan was performed and body mass index recorded on Day 0, 70, and 140. Blood glucose, inflammatory, and thyroid markers were measured on Day 0 and 140. Compliance was assessed using weekly 3-day food records and daily blood glucose and ketone monitoring. Results: The results showed that body fat percentage decreased by 2.25% and 4.41% at Day 70 and 140, respectively (P ≤ 0.012). Significant reductions in android, gynoid, and android/gynoid fat ratio and increases in muscle mass occurred by Day 70 and 140. Total cholesterol, LDL-C, and high-density lipoprotein cholesterol were increased and systolic BP and glycated hemoglobin (HbA1c) were decreased at Day 140 (P < 0.05). Following this VLCKD for 140 days was found to be safe and was well tolerated. Conclusion: The VLCKD showed beneficial changes in body composition and cardiometabolic markers in eutrophic and overweight participants in a 140-day study suggesting a future role for this diet in populations at cardiovascular disease risk. Future research with larger sample size in a randomized double blind clinical trial is warranted to confirm these results. Clinical Trial Registration number: NCT04195594.
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Affiliation(s)
- Nikolaos Tzenios
- Public Health and Medical Research, Charisma University, Grace Bay, Turks and Caicos Islands.,Global Clinical Scholars Research Training Program, Department of Postgraduate Medical Education, Harvard Medical School, Boston, Massachusetts, USA
| | | | | | - Mohamad Chahine
- Biological and Chemical Technology, International Medical Institute, Kursk State Medical University, Kursk, Russian Federation
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Santana JDM, Pereira M, Carvalho GQ, Dos Santos DB, de Oliveira AM. Polyunsaturated fatty acid consumption and weight gain during pregnancy: NISAMI Cohort study. Am J Hum Biol 2021; 34:e23687. [PMID: 34636455 DOI: 10.1002/ajhb.23687] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 09/18/2021] [Accepted: 09/20/2021] [Indexed: 12/13/2022] Open
Abstract
OBJECTIVES Few studies have investigated the influence of polyunsaturated fatty acid consumption on excessive weight gain during pregnancy. Thus, we analyzed the association between the intake of polyunsaturated fatty acids (ω-6 and ω-3) and weight gain in women during pregnancy. METHODS This is a cohort study of 250 pregnant women enrolled in municipal pre-natal services. Weight, height, and dietary intake of polyunsaturated fatty acids were evaluated at the baseline. The semi-quantitative food frequency questionnaire was employed to assess the main exposure. Gestational weight was measured in the first, second, and third trimesters. A dietary pattern involving the consumption of fatty acids was identified through factor analysis. A generalized estimating equation was used for the data analysis. RESULTS The prevalence of excessive weight gain at the end of pregnancy was 35.2%. Consumption patterns 1 (salted meats, offal, vegetable oil, snacks, legumes, and oleaginous foods) and 2 (red meat, sausages, butter, margarine, mayonnaise, acarajé, caruru, vatapá, and refined cereals) revealed a risk for the accumulation of excess weight during pregnancy. Women who adhered to consumption patterns 1 (RR: 2.39; 95% CI: 1.44-3.94) and 2 (RR: 2.39; 95% CI: 1.44-3.94) were more susceptible to excess weight gain during pregnancy. CONCLUSIONS Women who adhered to dietary patterns involving foods that are sources of ω-6 fatty acids and saturated fatty acids were more susceptible to gaining weight during pregnancy compared to those who adhered less to these patterns.
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Affiliation(s)
- Jerusa da Mota Santana
- Instituto de Saúde Coletiva, Universidade Federal da Bahia, Salvador, Bahia, Brazil.,Centro de Ciências de Saúde, Universidade Federal do Recôncavo da Bahia, Santo Antônio de Jesus, Bahia, Brazil
| | - Marcos Pereira
- Instituto de Saúde Coletiva, Universidade Federal da Bahia, Salvador, Bahia, Brazil
| | - Gisele Queiroz Carvalho
- Universidade Federal de Juiz de Fora, Campus Avançado de Governador Valadares, Governador Valadares, Minas Gerais, Brazil
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Antonio Paoli A, Mancin L, Caprio M, Monti E, Narici MV, Cenci L, Piccini F, Pincella M, Grigoletto D, Marcolin G. Effects of 30 days of ketogenic diet on body composition, muscle strength, muscle area, metabolism, and performance in semi-professional soccer players. J Int Soc Sports Nutr 2021; 18:62. [PMID: 34530857 PMCID: PMC8447662 DOI: 10.1186/s12970-021-00459-9] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Accepted: 08/25/2021] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND A ketogenic diet (KD) is a nutritional approach, usually adopted for weight loss, that restricts daily carbohydrates under 30 g/day. KD showed contradictory results on sport performance, whilst no data are available on team sports. We sought to investigate the influence of a KD on different parameters in semi-professional soccer players. METHODS Subjects were randomly assigned to a iso-protein (1.8 g/Kg body weight/day) ketogenic diet (KD) or western diet (WD) for 30 days. Body weight and body composition, resting energy expenditure (REE), respiratory exchange ratio (RER), cross sectional area (CSA) and isometric muscle strength of quadriceps, counter movement jump (CMJ) and yoyo intermittent recovery test time were measured. RESULTS There was a significantly higher decrease of body fat (p = 0.0359), visceral adipose tissue (VAT) (p = 0.0018), waist circumference (p = 0.0185) and extra-cellular water (p = 0.0060) in KD compared to WD group. Lean soft tissue, quadriceps muscle area, maximal strength and REE showed no changes in both groups. RER decreased significantly in KD (p = 0.0008). Yo-yo intermittent test improved significantly (p < 0.0001) in both groups without significant differences between groups. CMJ significantly improved (p = 0.0021) only in KD. CONCLUSIONS This is the first study investigating the effects of a KD on semi-professional soccer players. In our study KD athletes lost fat mass without any detrimental effects on strength, power and muscle mass. When the goal is a rapid weight reduction in such athletes, the use of a KD should be taken into account. TRIAL REGISTRATION registered retrospectively on Clinical Trial registration number NCT04078971 .
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Affiliation(s)
- A Antonio Paoli
- Department of Biomedical Sciences, University of Padua, Via Marzolo, 3, 35131, Padua, Italy. .,Research Center for High Performance Sport, UCAM, Catholic University of Murcia, 30107, Murcia, Spain. .,Human Inspired Technology Research Center, University of Padua, Padua, Italy.
| | - Laura Mancin
- Department of Biomedical Sciences, University of Padua, Via Marzolo, 3, 35131, Padua, Italy.,Human Inspired Technology Research Center, University of Padua, Padua, Italy
| | - Massimiliano Caprio
- Department of Human Sciences and Promotion of the Quality of Life, San Raffaele Roma Open University, Rome, Italy
| | - Elena Monti
- Department of Biomedical Sciences, University of Padua, Via Marzolo, 3, 35131, Padua, Italy
| | - Marco V Narici
- Department of Biomedical Sciences, University of Padua, Via Marzolo, 3, 35131, Padua, Italy
| | - Lorenzo Cenci
- Human Inspired Technology Research Center, University of Padua, Padua, Italy
| | | | - Matteo Pincella
- Inter FC., Milan, Italy.,FIGC Federazione Italiana Giuoco Calcio (Italian Football Federation), Rome, Italy
| | - Davide Grigoletto
- Department of Biomedical Sciences, University of Padua, Via Marzolo, 3, 35131, Padua, Italy
| | - Giuseppe Marcolin
- Department of Biomedical Sciences, University of Padua, Via Marzolo, 3, 35131, Padua, Italy
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25
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Melton E, Qiu H. Interleukin-1β in Multifactorial Hypertension: Inflammation, Vascular Smooth Muscle Cell and Extracellular Matrix Remodeling, and Non-Coding RNA Regulation. Int J Mol Sci 2021; 22:8639. [PMID: 34445357 PMCID: PMC8395428 DOI: 10.3390/ijms22168639] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 07/31/2021] [Accepted: 08/07/2021] [Indexed: 12/12/2022] Open
Abstract
The biological activities of interleukins, a group of circulating cytokines, are linked to the immuno-pathways involved in many diseases. Mounting evidence suggests that interleukin-1β (IL-1β) plays a significant role in the pathogenesis of various types of hypertension. In this review, we summarized recent findings linking IL-1β to systemic arterial hypertension, pulmonary hypertension, and gestational hypertension. We also outlined the new progress in elucidating the potential mechanisms of IL-1β in hypertension, focusing on it's regulation in inflammation, vascular smooth muscle cell function, and extracellular remodeling. In addition, we reviewed recent studies that highlight novel findings examining the function of non-coding RNAs in regulating the activity of IL-1β and its associated proteins in the setting of hypertension. The information collected in this review provides new insights into understanding the pathogenesis of hypertension and could lead to the discovery of new anti-hypertensive therapies to combat this highly prevalent disease.
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Affiliation(s)
| | - Hongyu Qiu
- Center for Molecular and Translational Medicine, Institute for Biomedical Sciences, Georgia State University, Atlanta, GA 30303, USA;
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26
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Hirschberger S, Strauß G, Effinger D, Marstaller X, Ferstl A, Müller MB, Wu T, Hübner M, Rahmel T, Mascolo H, Exner N, Heß J, Kreth FW, Unger K, Kreth S. Very-low-carbohydrate diet enhances human T-cell immunity through immunometabolic reprogramming. EMBO Mol Med 2021; 13:e14323. [PMID: 34151532 PMCID: PMC8350890 DOI: 10.15252/emmm.202114323] [Citation(s) in RCA: 49] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Revised: 06/01/2021] [Accepted: 06/02/2021] [Indexed: 12/16/2022] Open
Abstract
Very-low-carbohydrate diet triggers the endogenous production of ketone bodies as alternative energy substrates. There are as yet unproven assumptions that ketone bodies positively affect human immunity. We have investigated this topic in an in vitro model using primary human T cells and in an immuno-nutritional intervention study enrolling healthy volunteers. We show that ketone bodies profoundly impact human T-cell responses. CD4+ , CD8+ , and regulatory T-cell capacity were markedly enhanced, and T memory cell formation was augmented. RNAseq and functional metabolic analyses revealed a fundamental immunometabolic reprogramming in response to ketones favoring mitochondrial oxidative metabolism. This confers superior respiratory reserve, cellular energy supply, and reactive oxygen species signaling. Our data suggest a very-low-carbohydrate diet as a clinical tool to improve human T-cell immunity. Rethinking the value of nutrition and dietary interventions in modern medicine is required.
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Affiliation(s)
- Simon Hirschberger
- Walter Brendel Center of Experimental MedicineLudwig‐Maximilian‐University München (LMU)MunichGermany
- Department of Anaesthesiology and Intensive Care MedicineResearch Unit Molecular MedicineLMU University HospitalLudwig‐Maximilian‐University München (LMU)MunichGermany
| | - Gabriele Strauß
- Walter Brendel Center of Experimental MedicineLudwig‐Maximilian‐University München (LMU)MunichGermany
- Department of Anaesthesiology and Intensive Care MedicineResearch Unit Molecular MedicineLMU University HospitalLudwig‐Maximilian‐University München (LMU)MunichGermany
| | - David Effinger
- Walter Brendel Center of Experimental MedicineLudwig‐Maximilian‐University München (LMU)MunichGermany
- Department of Anaesthesiology and Intensive Care MedicineResearch Unit Molecular MedicineLMU University HospitalLudwig‐Maximilian‐University München (LMU)MunichGermany
| | - Xaver Marstaller
- Walter Brendel Center of Experimental MedicineLudwig‐Maximilian‐University München (LMU)MunichGermany
| | - Alicia Ferstl
- Walter Brendel Center of Experimental MedicineLudwig‐Maximilian‐University München (LMU)MunichGermany
| | - Martin B Müller
- Walter Brendel Center of Experimental MedicineLudwig‐Maximilian‐University München (LMU)MunichGermany
- Department of Anaesthesiology and Intensive Care MedicineResearch Unit Molecular MedicineLMU University HospitalLudwig‐Maximilian‐University München (LMU)MunichGermany
| | - Tingting Wu
- Walter Brendel Center of Experimental MedicineLudwig‐Maximilian‐University München (LMU)MunichGermany
| | - Max Hübner
- Walter Brendel Center of Experimental MedicineLudwig‐Maximilian‐University München (LMU)MunichGermany
- Department of Anaesthesiology and Intensive Care MedicineResearch Unit Molecular MedicineLMU University HospitalLudwig‐Maximilian‐University München (LMU)MunichGermany
| | - Tim Rahmel
- Department of AnesthesiaIntensive Care Medicine and Pain TherapyUniversity Hospital Knappschaftskrankenhaus BochumBochumGermany
| | - Hannah Mascolo
- Walter Brendel Center of Experimental MedicineLudwig‐Maximilian‐University München (LMU)MunichGermany
| | - Nicole Exner
- Metabolic BiochemistryBiomedical Center (BMC)Faculty of MedicineLudwig‐Maximilian‐University München (LMU)MunichGermany
| | - Julia Heß
- Helmholtz Center MunichResearch Unit Radiation CytogeneticsNeuherbergGermany
- Department of Radiation OncologyLMU University HospitalLudwig‐Maximilian‐University München (LMU)MunichGermany
| | - Friedrich W Kreth
- Walter Brendel Center of Experimental MedicineLudwig‐Maximilian‐University München (LMU)MunichGermany
| | - Kristian Unger
- Helmholtz Center MunichResearch Unit Radiation CytogeneticsNeuherbergGermany
- Department of Radiation OncologyLMU University HospitalLudwig‐Maximilian‐University München (LMU)MunichGermany
| | - Simone Kreth
- Walter Brendel Center of Experimental MedicineLudwig‐Maximilian‐University München (LMU)MunichGermany
- Department of Anaesthesiology and Intensive Care MedicineResearch Unit Molecular MedicineLMU University HospitalLudwig‐Maximilian‐University München (LMU)MunichGermany
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27
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López-Seoane J, Martinez-Ferran M, Romero-Morales C, Pareja-Galeano H. N-3 PUFA as an ergogenic supplement modulating muscle hypertrophy and strength: a systematic review. Crit Rev Food Sci Nutr 2021; 62:9000-9020. [PMID: 34128440 DOI: 10.1080/10408398.2021.1939262] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
There is growing evidence that suggests that n-3 polyunsaturated fatty acids (PUFA) may improve physical performance when combined with proper training through modulation of muscle hypertrophy, muscle strength, and delayed onset muscle soreness (DOMS). This systematic review aims to examine the effect and optimal dosage of n-3 PUFA supplementation on muscle hypertrophy, muscle strength, and DOMS when combined with physical exercise. The PubMed, Web of Science, MEDLINE Complete, CINAHL and SPORTDiscus databases were searched following the PRISMA guidelines. Randomized controlled trials performed with healthy humans were considered. Fifteen studies with a total of 461 individuals were included in this systematic review. All of them measured muscle function (short physical performance test, range of motion (ROM), electromechanical delay (EMD), muscle echo intensity or muscle quality) and DOMS. Fourteen studies evaluated muscle strength and only six assessed muscle hypertrophy. Our results demonstrated that n-3 PUFA does not improve muscle hypertrophy, muscle strength or skeletal muscle biomarkers of inflammation and muscle damage beyond the benefits obtained by the training itself. Nevertheless, n-3 PUFA improves DOMS recovery and muscle function (measured by ROM, EMD and muscle quality).
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Affiliation(s)
- Jaime López-Seoane
- ImFINE Research Group, Department of Health and Human Performance, Faculty of Physical Activity and Sport Sciences-INEF, Universidad Politécnica de Madrid, Madrid, Spain
| | | | | | - Helios Pareja-Galeano
- ImFINE Research Group, Department of Health and Human Performance, Faculty of Physical Activity and Sport Sciences-INEF, Universidad Politécnica de Madrid, Madrid, Spain.,Department of Physical Education, Sport and Human Movement, Autonomous University of Madrid, Madrid, Spain
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28
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Sepidarkish M, Rezamand G, Qorbani M, Heydari H, Estêvão MD, Omran D, Morvaridzadeh M, Roffey DM, Farsi F, Ebrahimi S, Shokri F, Heshmati J. Effect of omega-3 fatty acids supplementation on adipokines: a systematic review and meta-analysis of randomized controlled trials. Crit Rev Food Sci Nutr 2021; 62:7561-7575. [PMID: 33998914 DOI: 10.1080/10408398.2021.1915743] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
BACKGROUND Although a large body of literature reported the beneficial effects of omega-3 fatty acids (omega-3 FAs) consumption on adipokines levels, but recent findings from clinical trials are not univocal. The aim of this systematic review and meta-analysis was to evaluate the effect of omega-3 FAs supplements on adipokines. METHODS We searched Medline, Web of Science, Scopus, Embase, and Cochrane Library from inception to August 2020 without any particular language limitations. Outcomes were summarized as standardized mean difference (SMD) with 95% confidence intervals (CIs) estimated from Hedge's g and random effects modeling. RESULTS Fifty-two trials involving 4,568 participants were included. Omega-3 FAs intake was associated with a significant increase in plasma adiponectin levels (n = 43; 3,434 participants; SMD: 0.21, 95% CI: 0.04, 0.37; p = 0.01; I2= 80.14%). This meta-analysis indicates that supplementing participants with omega-3 fatty acids more than 2000 mg daily and more than 10 weeks resulted in a significant and more favorable improvement in plasma adiponectin levels. However, omega-3 FAs intake had no significant effect on leptin levels (SMD: -0.02, 95% CI: -0.20, 0.17, I2= 54.13%). CONCLUSION The evidence supports a beneficial effect of omega-3 FAs intake on serum adiponectin levels but does not appear to impact on leptin concentrations. Larger well-designed RCTs are still required to evaluate the effect of omega-3 FAs on leptin in specific diseases.
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Affiliation(s)
- Mahdi Sepidarkish
- Department of Biostatistics and Epidemiology, School of Public Health, Babol University of Medical Sciences, Babol, Iran
| | - Gholamreza Rezamand
- Colorectal Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Mostafa Qorbani
- Non-communicable Diseases Research Center, Alborz University of Medical Sciences, Karaj, Iran.,Chronic Diseases Research Center, Endocrinology and Metabolism Population Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Hafez Heydari
- Cellular and Molecular Research Center, Sabzevar University of Medical Sciences, Sabzevar, Iran
| | - M Dulce Estêvão
- Universidade do Algarve, Escola Superior de Saúde, Campus de Gambelas, Faro, Portugal
| | - Dalia Omran
- Department of Endemic Medicine and Hepatology, Thabet hospital for Endemic diseases, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Mojgan Morvaridzadeh
- Department of Nutritional Science, School of Nutritional Science and Food Technology, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Darren M Roffey
- Vancouver General Hospital, Vancouver Coastal Health, Vancouver, Canada
| | - Farnaz Farsi
- Student Research Committee, Department of Nutrition, School of Public Health, Iran University of Medical Sciences, Tehran, Iran
| | - Sara Ebrahimi
- Institute for Physical Activity and Nutrition, School of Exercise and Nutrition Sciences, Deakin University, Geelong, Australia
| | - Fatemeh Shokri
- Department of Health Education and Promotion, Iran University of Medical Sciences, Tehran, Iran
| | - Javad Heshmati
- Department of Nutritional Science, School of Nutritional Science and Food Technology, Kermanshah University of Medical Sciences, Kermanshah, Iran
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29
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Morris G, Puri BK, Bortolasci CC, Carvalho A, Berk M, Walder K, Moreira EG, Maes M. The role of high-density lipoprotein cholesterol, apolipoprotein A and paraoxonase-1 in the pathophysiology of neuroprogressive disorders. Neurosci Biobehav Rev 2021; 125:244-263. [PMID: 33657433 DOI: 10.1016/j.neubiorev.2021.02.037] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Revised: 01/29/2021] [Accepted: 02/23/2021] [Indexed: 12/11/2022]
Abstract
Lowered high-density lipoprotein (HDL) cholesterol has been reported in major depressive disorder, bipolar disorder, first episode of psychosis, and schizophrenia. HDL, its major apolipoprotein component, ApoA1, and the antioxidant enzyme paraoxonase (PON)1 (which is normally bound to ApoA1) all have anti-atherogenic, antioxidant, anti-inflammatory, and immunomodulatory roles, which are discussed in this paper. The paper details the pathways mediating the anti-inflammatory effects of HDL, ApoA1 and PON1 and describes the mechanisms leading to compromised HDL and PON1 levels and function in an environment of chronic inflammation. The molecular mechanisms by which changes in HDL, ApoA1 and PON1 might contribute to the pathophysiology of the neuroprogressive disorders are explained. Moreover, the anti-inflammatory actions of ApoM-mediated sphingosine 1-phosphate (S1P) signalling are reviewed as well as the deleterious effects of chronic inflammation and oxidative stress on ApoM/S1P signalling. Finally, therapeutic interventions specifically aimed at improving the levels and function of HDL and PON1 while reducing levels of inflammation and oxidative stress are considered. These include the so-called Mediterranean diet, extra virgin olive oil, polyphenols, flavonoids, isoflavones, pomegranate juice, melatonin and the Mediterranean diet combined with the ketogenic diet.
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Affiliation(s)
- Gerwyn Morris
- Deakin University, IMPACT - The Institute for Mental and Physical Health and Clinical Translation, School of Medicine, Barwon Health, Geelong, Australia
| | | | - Chiara C Bortolasci
- Deakin University, IMPACT - The Institute for Mental and Physical Health and Clinical Translation, School of Medicine, Barwon Health, Geelong, Australia; Deakin University, CMMR Strategic Research Centre, School of Medicine, Geelong, Victoria, Australia.
| | - Andre Carvalho
- Deakin University, IMPACT - The Institute for Mental and Physical Health and Clinical Translation, School of Medicine, Barwon Health, Geelong, Australia; Department of Psychiatry, University of Toronto, Toronto, ON, Canada; Centre for Addiction and Mental Health (CAMH), Toronto, ON, Canada
| | - Michael Berk
- Deakin University, IMPACT - The Institute for Mental and Physical Health and Clinical Translation, School of Medicine, Barwon Health, Geelong, Australia; Orygen, The National Centre of Excellence in Youth Mental Health, The Department of Psychiatry and The Florey Institute for Neuroscience and Mental Health, University of Melbourne, Parkville, Victoria, Australia
| | - Ken Walder
- Deakin University, IMPACT - The Institute for Mental and Physical Health and Clinical Translation, School of Medicine, Barwon Health, Geelong, Australia; Deakin University, CMMR Strategic Research Centre, School of Medicine, Geelong, Victoria, Australia
| | - Estefania G Moreira
- Post-Graduation Program in Health Sciences, State University of Londrina, Londrina, PR, Brazil
| | - Michael Maes
- Deakin University, IMPACT - The Institute for Mental and Physical Health and Clinical Translation, School of Medicine, Barwon Health, Geelong, Australia; Department of Psychiatry, King Chulalongkorn University Hospital, Bangkok, Thailand; Department of Psychiatry, Medical University of Plovdiv, Plovdiv, Bulgaria
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30
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Elisia I, Krystal G. The Pros and Cons of Low Carbohydrate and Ketogenic Diets in the Prevention and Treatment of Cancer. Front Nutr 2021; 8:634845. [PMID: 33718419 PMCID: PMC7946860 DOI: 10.3389/fnut.2021.634845] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2020] [Accepted: 02/05/2021] [Indexed: 02/06/2023] Open
Abstract
Ketogenic diets are low carbohydrate (CHO), high fat diets that are currently very popular for weight loss. Since cancer cells typically consume far more glucose than normal cells, low CHO diets are currently being considered as possible therapeutic regimens to manage cancer. However, our understanding of the safety and efficacy of such CHO-restricted diets in the prevention and treatment of cancer is still in its infancy. In this perspective we provide an overview of the current state of knowledge regarding the use of low CHO diets in the prevention and treatment of cancer. We also highlight the gaps in our knowledge regarding the potential usefulness of low CHO diets in cancer. While pre-clinical rodent studies have provided convincing evidence that CHO restriction may be effective in reducing cancer growth, there has not been sufficient attention given to the effect of these low CHO diets, that are often high in fats and low in soluble fiber, on inflammation. This is important, given that different fats have distinct effects on inflammation. As well, we demonstrate that short chain fatty acids, which are produced via the fermentation of fiber by our gut microbiome, have more anti-inflammatory properties than β-hydroxybutyrate, a ketone body produced during nutritional ketosis that is touted to have anti-inflammatory activity. Since chronic inflammation is strongly associated with cancer formation, defining the type of fats in low CHO diets may contribute to our understanding of whether these diets may work simply by reducing glucose bioavailability, or via modulation of inflammatory responses.
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Affiliation(s)
- Ingrid Elisia
- The Terry Fox Laboratory, BC Cancer, Vancouver, BC, Canada
| | - Gerald Krystal
- The Terry Fox Laboratory, BC Cancer, Vancouver, BC, Canada
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31
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Paoli A, Cenci L, Pompei P, Sahin N, Bianco A, Neri M, Caprio M, Moro T. Effects of Two Months of Very Low Carbohydrate Ketogenic Diet on Body Composition, Muscle Strength, Muscle Area, and Blood Parameters in Competitive Natural Body Builders. Nutrients 2021; 13:nu13020374. [PMID: 33530512 PMCID: PMC7911670 DOI: 10.3390/nu13020374] [Citation(s) in RCA: 55] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Revised: 01/21/2021] [Accepted: 01/22/2021] [Indexed: 12/19/2022] Open
Abstract
Background: Ketogenic diet (KD) is a nutritional approach that restricts daily carbohydrates, replacing most of the reduced energy with fat, while maintaining an adequate quantity of protein. Despite the widespread use of KD in weight loss in athletes, there are still many concerns about its use in sports requiring muscle mass accrual. Thus, the present study sought to investigate the influence of a KD in competitive natural body builders. Methods: Nineteen volunteers (27.4 ± 10.5 years) were randomly assigned to ketogenic diet (KD) or to a western diet (WD). Body composition, muscle strength and basal metabolic rate were measured before and after two months of intervention. Standard blood biochemistry, testosterone, IGF-1, brain-derived neurotrophic factor (BDNF) and inflammatory cytokines (IL6, IL1β, TNFα) were also measured. Results: Body fat significantly decreased in KD (p = 0.030); whilst lean mass increased significantly only in WD (p < 0.001). Maximal strength increased similarly in both groups. KD showed a significant decrease of blood triglycerides (p < 0.001), glucose (p = 0.001), insulin (p < 0.001) and inflammatory cytokines compared to WD whilst BDNF increased in both groups with significant greater changes in KD (p < 0.001). Conclusions: KD may be used during body building preparation for health and leaning purposes but with the caution that hypertrophic muscle response could be blunted.
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Affiliation(s)
- Antonio Paoli
- Department of Biomedical Sciences, University of Padua, 35131 Padua, Italy;
- Research Center for High Performance Sport, UCAM, Catholic University of Murcia, 30107 Murcia, Spain
| | - Lorenzo Cenci
- Brain, Mind and Computer Science Doctoral Program, University of Padua, 35131 Padua, Italy;
| | - PierLuigi Pompei
- Unit of Pharmacology, School of Pharmacy, University of Camerino, 62032 Camerino, Italy;
| | - Nese Sahin
- Faculty of Sport Science, Ankara University, 06830 Ankara, Turkey;
| | - Antonino Bianco
- Department of Psychology, Educational Science and Human Movement, Sport and Exercise Sciences Research Unit, University of Palermo, 90128 Palermo, Italy;
| | - Marco Neri
- Department of Human Sciences and Promotion of the Quality of Life, San Raffaele Roma Open University, 00166 Rome, Italy; (M.N.); (M.C.)
| | - Massimiliano Caprio
- Department of Human Sciences and Promotion of the Quality of Life, San Raffaele Roma Open University, 00166 Rome, Italy; (M.N.); (M.C.)
- Laboratory of Cardiovascular Endocrinology, IRCCS San Raffaele Pisana, 00163 Rome, Italy
| | - Tatiana Moro
- Department of Biomedical Sciences, University of Padua, 35131 Padua, Italy;
- Correspondence: ; Tel.: +39-049-827-5306
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32
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Zhang W, Guo X, Chen L, Chen T, Yu J, Wu C, Zheng J. Ketogenic Diets and Cardio-Metabolic Diseases. Front Endocrinol (Lausanne) 2021; 12:753039. [PMID: 34795641 PMCID: PMC8594484 DOI: 10.3389/fendo.2021.753039] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Accepted: 10/13/2021] [Indexed: 12/31/2022] Open
Abstract
While the prevalence of cardio-metabolic diseases (CMDs) has become a worldwide epidemic, much attention is paid to managing CMDs effectively. A ketogenic diet (KD) constitutes a high-fat and low-carbohydrate diet with appropriate protein content and calories. KD has drawn the interests of clinicians and scientists regarding its application in the management of metabolic diseases and related disorders; thus, the current review aimed to examine the evidences surrounding KD and the CMDs to draw the clinical implications. Overall, KD appears to play a significant role in the therapy of various CMDs, which is manifested by the effects of KDs on cardio-metabolic outcomes. KD therapy is generally promising in obesity, heart failure, and hypertension, though different voices still exist. In diabetes and dyslipidemia, the performance of KD remains controversial. As for cardiovascular complications of metabolic diseases, current evidence suggests that KD is generally protective to obese related cardiovascular disease (CVD), while remaining contradictory to diabetes and other metabolic disorder related CVDs. Various factors might account for the controversies, including genetic background, duration of therapy, food composition, quality, and sources of KDs. Therefore, it's crucial to perform more rigorous researches to focus on clinical safety and appropriate treatment duration and plan of KDs.
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Affiliation(s)
- Weiyue Zhang
- Department of Endocrinology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Provincial Clinical Research Center for Diabetes and Metabolic Disorders, Wuhan, China
| | - Xin Guo
- Department of Nutrition and Food Hygiene, School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Lulu Chen
- Department of Endocrinology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Provincial Clinical Research Center for Diabetes and Metabolic Disorders, Wuhan, China
| | - Ting Chen
- Department of Endocrinology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Provincial Clinical Research Center for Diabetes and Metabolic Disorders, Wuhan, China
| | - Jiayu Yu
- Department of Endocrinology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Provincial Clinical Research Center for Diabetes and Metabolic Disorders, Wuhan, China
| | - Chaodong Wu
- Department of Nutrition, Texas A&M University, College Station, TX, United States
- *Correspondence: Juan Zheng, ; Chaodong Wu,
| | - Juan Zheng
- Department of Endocrinology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Provincial Clinical Research Center for Diabetes and Metabolic Disorders, Wuhan, China
- *Correspondence: Juan Zheng, ; Chaodong Wu,
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33
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Nasser S, Vialichka V, Biesiekierska M, Balcerczyk A, Pirola L. Effects of ketogenic diet and ketone bodies on the cardiovascular system: Concentration matters. World J Diabetes 2020; 11:584-595. [PMID: 33384766 PMCID: PMC7754168 DOI: 10.4239/wjd.v11.i12.584] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Revised: 09/29/2020] [Accepted: 10/19/2020] [Indexed: 02/06/2023] Open
Abstract
Ketone bodies have emerged as central mediators of metabolic health, and multiple beneficial effects of a ketogenic diet, impacting metabolism, neuronal pathologies and, to a certain extent, tumorigenesis, have been reported both in animal models and clinical research. Ketone bodies, endogenously produced by the liver, act pleiotropically as metabolic intermediates, signaling molecules, and epigenetic modifiers. The endothelium and the vascular system are central regulators of the organism’s metabolic state and become dysfunctional in cardiovascular disease, atherosclerosis, and diabetic micro- and macrovascular complications. As physiological circulating ketone bodies can attain millimolar concentrations, the endothelium is the first-line cell lineage exposed to them. While in diabetic ketoacidosis high ketone body concentrations are detrimental to the vasculature, recent research revealed that ketone bodies in the low millimolar range may exert beneficial effects on endothelial cell (EC) functioning by modulating the EC inflammatory status, senescence, and metabolism. Here, we review the long-held evidence of detrimental cardiovascular effects of ketoacidosis as well as the more recent evidence for a positive impact of ketone bodies—at lower concentrations—on the ECs metabolism and vascular physiology and the subjacent cellular and molecular mechanisms. We also explore arising controversies in the field and discuss the importance of ketone body concentrations in relation to their effects. At low concentration, endogenously produced ketone bodies upon uptake of a ketogenic diet or supplemented ketone bodies (or their precursors) may prove beneficial to ameliorate endothelial function and, consequently, pathologies in which endothelial damage occurs.
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Affiliation(s)
- Souad Nasser
- Carmen Laboratory, INSERM Unit 1060—Lyon 1 University, Pierre Benite 69310, France
| | - Varvara Vialichka
- Faculty of Biology and Environmental Protection, Department of Molecular Biophysics, University of Lodz, Lodz 90-236, Poland
- The University of Lodz Doctoral School of Exact and Natural Sciences, Lodz 90-237, Poland
| | - Marta Biesiekierska
- Faculty of Biology and Environmental Protection, Department of Molecular Biophysics, University of Lodz, Lodz 90-236, Poland
| | - Aneta Balcerczyk
- Faculty of Biology and Environmental Protection, Department of Molecular Biophysics, University of Lodz, Lodz 90-236, Poland
| | - Luciano Pirola
- Carmen Laboratory, INSERM Unit 1060—Lyon 1 University, Pierre Benite 69310, France
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Paoli A, Gorini S, Caprio M. The dark side of the spoon - glucose, ketones and COVID-19: a possible role for ketogenic diet? J Transl Med 2020; 18:441. [PMID: 33218357 PMCID: PMC7677746 DOI: 10.1186/s12967-020-02600-9] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2020] [Accepted: 10/30/2020] [Indexed: 02/06/2023] Open
Abstract
The novel coronavirus disease (COVID-19) is posing a serious challenge to the health-care systems worldwide, with an enormous impact on health conditions and loss of lives. Notably, obesity and its related comorbidities are strictly related with worse clinical outcomes of COVID-19 disease. Recently, there is a growing interest in the clinical use of ketogenic diets (KDs), particularly in the context of severe obesity with related metabolic complications. KDs have been proven effective for a rapid reduction of fat mass, preserving lean mass and providing an adequate nutritional status. In particular, the physiological increase in plasma levels of ketone bodies exerts important anti-inflammatory and immunomodulating effects, which may reveal as precious tools to prevent infection and potential adverse outcomes of COVID-19 disease. We discuss here the importance of KDs for a rapid reduction of several critical risk factors for COVID-19, such as obesity, type 2 diabetes and hypertension, based on the known effects of ketone bodies on inflammation, immunity, metabolic profile and cardiovascular function. We do believe that a rapid reduction of all modifiable risk factors, especially obesity with its metabolic complications, should be a pillar of public health policies and interventions, in view of future waves of SARS-CoV-2 infection.
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Affiliation(s)
- Antonio Paoli
- Department of Biomedical Sciences, University of Padua, Padua, Italy
| | - Stefania Gorini
- Laboratory of Cardiovascular Endocrinology, IRCCS San Raffaele Pisana, Via di Val Cannuta, 247, 00166, Rome, Italy
| | - Massimiliano Caprio
- Laboratory of Cardiovascular Endocrinology, IRCCS San Raffaele Pisana, Via di Val Cannuta, 247, 00166, Rome, Italy. .,Department of Human Sciences and Promotion of the Quality of Life, San Raffaele Roma Open University, Via di Val Cannuta, 247, 00166, Rome, Italy.
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35
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Cancer diets for cancer patients: Lessons from mouse studies and new insights from the study of fatty acid metabolism in tumors. Biochimie 2020; 178:56-68. [PMID: 32890677 DOI: 10.1016/j.biochi.2020.08.020] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Revised: 07/29/2020] [Accepted: 08/30/2020] [Indexed: 12/15/2022]
Abstract
Specific diets for cancer patients have the potential to offer an adjuvant modality to conventional anticancer therapy. If the concept of starving cancer cells from nutrients to inhibit tumor growth is quite simple, the translation into the clinics is not straightforward. Several diets have been described including the Calorie-restricted diet based on a reduction in carbohydrate intake and the Ketogenic diet wherein the low carbohydrate content is compensated by a high fat intake. As for other diets that deviate from normal composition only by one or two amino acids, these diets most often revealed a reduction in tumor growth in mice, in particular when associated with chemo- or radiotherapy. By contrast, in cancer patients, the interest of these diets is almost exclusively supported by case reports precluding any conclusions on their real capacity to influence disease outcome. In parallel, the field of tumor lipid metabolism has emerged in the last decade offering a better understanding of how fatty acids are captured, synthesized or stored as lipid droplets in cancers. Fatty acids participate to cancer cell survival in the hypoxic and acidic tumor microenvironment and also support proliferation and invasiveness. Interestingly, while such addiction for fatty acids may account for cancer progression associated with high fat diet, it could also represent an Achilles heel for tumors. In particular n-3 polyunsaturated fatty acids represent a class of lipids that can exert potent cytotoxic effects in tumors and therefore represent an attractive diet supplementation to improve cancer patient outcomes.
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36
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Analysis of the intricate effects of polyunsaturated fatty acids and polyphenols on inflammatory pathways in health and disease. Food Chem Toxicol 2020; 143:111558. [PMID: 32640331 PMCID: PMC7335494 DOI: 10.1016/j.fct.2020.111558] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Revised: 06/16/2020] [Accepted: 06/24/2020] [Indexed: 02/08/2023]
Abstract
Prevention and treatment of non-communicable diseases (NCDs), including cardiovascular disease, diabetes, obesity, cancer, Alzheimer's and Parkinson's disease, arthritis, non-alcoholic fatty liver disease and various infectious diseases; lately most notably COVID-19 have been in the front line of research worldwide. Although targeting different organs, these pathologies have common biochemical impairments - redox disparity and, prominently, dysregulation of the inflammatory pathways. Research data have shown that diet components like polyphenols, poly-unsaturated fatty acids (PUFAs), fibres as well as lifestyle (fasting, physical exercise) are important factors influencing signalling pathways with a significant potential to improve metabolic homeostasis and immune cells' functions. In the present manuscript we have reviewed scientific data from recent publications regarding the beneficial cellular and molecular effects induced by dietary plant products, mainly polyphenolic compounds and PUFAs, and summarize the clinical outcomes expected from these types of interventions, in a search for effective long-term approaches to improve the immune system response.
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Jaggers GK, Watkins BA, Rodriguez RL. COVID-19: repositioning nutrition research for the next pandemic. Nutr Res 2020; 81:1-6. [PMID: 32795724 PMCID: PMC7375285 DOI: 10.1016/j.nutres.2020.07.005] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Revised: 07/16/2020] [Accepted: 07/16/2020] [Indexed: 02/06/2023]
Affiliation(s)
- Grayson K Jaggers
- Department of Biological Sciences, University of Southern California, Los Angeles, CA.
| | - Bruce A Watkins
- Department of Nutrition, University of California, Davis, Davis, CA.
| | - Raymond L Rodriguez
- Department of Department of Molecular and Cellular Biology, University of California Davis, Davis, CA.
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Vargas G, Azarbal J, Tota-Maharaj R. A Comparative Review of Established Diets for Prevention of Cardiovascular Disease and Newer Dietary Strategies. Curr Probl Cardiol 2020; 46:100582. [PMID: 32389436 DOI: 10.1016/j.cpcardiol.2020.100582] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Accepted: 03/11/2020] [Indexed: 12/13/2022]
Abstract
As part of a population-based approach to combating obesity, the American Heart Association has published specific dietary guidelines for the management of obesity and cardiovascular disease prevention. These guidelines give a primary view of healthy dietary changes and goals which may reduce cardiovascular risk. The American Heart Association guideline on Cardiovascular Prevention focuses on the benefits of a Plant-Based Diet and the Mediterranean diet. In addition to these recommendations, several other diets exist with variable long-term cardiovascular outcomes. In recent years, the ketogenic and intermittent fasting diets have been emerging and have garnered their own respective followings as weight loss strategies, and we will include them in our discussion of the potential long-term benefits related to cardiovascular risks. As the guidelines emphasize, all of the diets we will cover throughout this review must be discussed at the level of the individual patient with their primary care provider, and cannot be exercised without informed consent regarding the potential outcomes. Further research is required, and caution is advised before prescribing any of these diets to patients in the long-term, due to the potential to exacerbate cardiovascular risk factors.
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Paoli A, Mancin L, Giacona MC, Bianco A, Caprio M. Effects of a ketogenic diet in overweight women with polycystic ovary syndrome. J Transl Med 2020; 18:104. [PMID: 32103756 PMCID: PMC7045520 DOI: 10.1186/s12967-020-02277-0] [Citation(s) in RCA: 121] [Impact Index Per Article: 30.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2019] [Accepted: 02/19/2020] [Indexed: 02/08/2023] Open
Abstract
Background Polycystic ovary syndrome (PCOS) is the most common endocrine disorder in women during reproductive age. It is characterised clinically by oligo-ovulation or anovulation, hyper-androgenism, and the presence of polycystic ovaries. It is associated with an increased prevalence of metabolic syndrome, cardiovascular disease and type 2 diabetes. The onset of PCOS has been associated to several hereditary and environmental factors, but insulin resistance plays a key pathogenetic role. We sought to investigate the effects of a ketogenic diet (KD) on women of childbearing age with a diagnosis of PCOS. Methods Fourteen overweight women with diagnosis of PCOS underwent to a ketogenic Mediterranean diet with phyoextracts (KEMEPHY) for 12 week. Changes in body weight, body mass index (BMI), fat body mass (FBM), lean body mass (LBM), visceral adipose tissue (VAT), insulin, glucose, HOMA-IR, total cholesterol, low density lipoprotein (LDL), high density lipoprotein (HDL), triglycerides (TGs), total and free testosterone, luteinizing hormone (LH), follicle stimulating hormone (FSH); dehydroepiandrosterone sulfate (DHEAs), estradiol, progesterone, sex hormone binding globulin (SHBG) and Ferriman Gallwey score were evaluated. Results After 12 weeks, anthropometric and body composition measurements revealed a significant reduction of body weight (− 9.43 kg), BMI (− 3.35), FBM (8.29 kg) and VAT. There was a significant, slightly decrease of LBM. A significant decrease in glucose and insulin blood levels were observed, together with a significant improvement of HOMA-IR. A significant decrease of triglycerides, total cholesterol and LDL were observed along with a rise in HDL levels. The LH/FSH ratio, LH total and free testosterone, and DHEAS blood levels were also significantly reduced. Estradiol, progesterone and SHBG increased. The Ferriman Gallwey Score was slightly, although not significantly, reduced. Conclusions Our results suggest that a KD may be considered as a valuable non pharmacological treatment for PCOS. Longer treatment periods should be tested to verify the effect of a KD on the dermatological aspects of PCOS. Trial registration Clinicaltrial.gov, NCT04163120, registrered 10 November 2019, retrospectively registered, https://clinicaltrials.gov.
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Affiliation(s)
- Antonio Paoli
- Department of Biomedical Sciences, University of Padua, Padua, Italy. .,Research Center for High Performance Sport, UCAM, Catholic University of Murcia, Murcia, Spain.
| | - Laura Mancin
- Department of Biomedical Sciences, University of Padua, Padua, Italy.,Human Inspired Technology Research Center HIT, University of Padua, Padua, Italy
| | - Maria Cristina Giacona
- Department of Neuroscience, Biomedicine and Movement Sciences, University of Verona, Verona, Italy
| | - Antonino Bianco
- Department of Psychology, Educational Science and Human Movement, University of Palermo, Palermo, Italy
| | - Massimiliano Caprio
- Laboratory of Cardiovascular Endocrinology, IRCCS San Raffaele Pisana, Rome, Italy.,Department of Human Sciences and Promotion of the Quality of Life, San Raffaele Roma Open University, Rome, Italy
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Caplliure‐Llopis J, Peralta‐Chamba T, Carrera‐Juliá S, Cuerda‐Ballester M, Drehmer‐Rieger E, López‐Rodriguez MM, de la Rubia Ortí JE. Therapeutic alternative of the ketogenic Mediterranean diet to improve mitochondrial activity in Amyotrophic Lateral Sclerosis (ALS): A Comprehensive Review. Food Sci Nutr 2020; 8:23-35. [PMID: 31993129 PMCID: PMC6977418 DOI: 10.1002/fsn3.1324] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2019] [Revised: 10/07/2019] [Accepted: 10/17/2019] [Indexed: 12/11/2022] Open
Abstract
Amyotrophic lateral sclerosis (ALS) is an incurable neurodegenerative disease which is pathogenically based on the mitochondrial alteration of motor neurons, causing progressive neuron death. While ALS is characterized by enormous oxidative stress, the Mediterranean diet has been seen to have high antioxidant power. Therefore, the aim of this study is to determine how the Mediterranean diet can improve mitochondrial activity, establishing the specific nutrients and, in addition, observing the pathogenic mechanisms related to the disease that would achieve this improvement. To this end, a comprehensive review of the literature was performed using PubMed. KBs have been observed to have a neuroprotective effect to improve energy balance, increasing survival and the number of motor neurons. This ketogenesis can be achieved after following a Mediterranean diet which is associated with great benefits in other neurodegenerative diseases such as Alzheimer's disease, Parkinson's disease, and ALS. These benefits are due to the high antioxidant power especially based on polyphenols contained mainly in olive oil, wine, nuts, or berries. In short, KBs could be considered as a promising option to treat ALS, representing an alternative source to glucose in motor neurons by providing neuroprotection. In addition, treatment results can be improved as ketogenesis can be achieved (increase in KBs) by following a Mediterranean diet, thanks to the high antioxidant properties which, at the same time, would improve the high oxidative stress that characterizes the disease.
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Affiliation(s)
- Jordi Caplliure‐Llopis
- Doctoral Degree's SchoolCatholic University of ValenciaValenciaSpain
- University Hospital la RiberaAlziraSpain
| | | | - Sandra Carrera‐Juliá
- Doctoral Degree's SchoolCatholic University of ValenciaValenciaSpain
- Faculty of Medicine and OdontologyCatholic. University of ValenciaValenciaSpain
| | | | - Eraci Drehmer‐Rieger
- Department of Health and Functional ValorizationCatholic University of ValenciaValenciaSpain
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Fila M, Chojnacki C, Chojnacki J, Blasiak J. Is an "Epigenetic Diet" for Migraines Justified? The Case of Folate and DNA Methylation. Nutrients 2019; 11:E2763. [PMID: 31739474 PMCID: PMC6893742 DOI: 10.3390/nu11112763] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Revised: 11/05/2019] [Accepted: 11/12/2019] [Indexed: 12/15/2022] Open
Abstract
Migraines are a common disease with limited treatment options and some dietary factors are recognized to trigger headaches. Although migraine pathogenesis is not completely known, aberrant DNA methylation has been reported to be associated with its occurrence. Folate, an essential micronutrient involved in one-carbon metabolism and DNA methylation, was shown to have beneficial effects on migraines. Moreover, the variability of the methylenetetrahydrofolate reductase gene, important in both folate metabolism and migraine pathogenesis, modulates the beneficial effects of folate for migraines. Therefore, migraine could be targeted by a folate-rich, DNA methylation-directed diet, but there are no data showing that beneficial effects of folate consumption result from its epigenetic action. Furthermore, contrary to epigenetic drugs, epigenetic diets contain many compounds, some yet unidentified, with poorly known or completely unknown potential to interfere with the epigenetic action of the main dietary components. The application of epigenetic diets for migraines and other diseases requires its personalization to the epigenetic profile of a patient, which is largely unknown. Results obtained so far do not warrant the recommendation of any epigenetic diet as effective in migraine prevention and therapy. Further studies including a folate-rich diet fortified with valproic acid, another modifier of epigenetic profile effective in migraine prophylaxis, may help to clarify this issue.
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Affiliation(s)
- Michal Fila
- Department of Neurology, Polish Mother Memorial Hospital, Research Institute, 93-338 Lodz, Poland;
| | - Cezary Chojnacki
- Department of Clinical Nutrition and Gastroenterological Diagnostics, Medical University of Lodz, 90-647 Lodz, Poland; (C.C.); (J.C.)
| | - Jan Chojnacki
- Department of Clinical Nutrition and Gastroenterological Diagnostics, Medical University of Lodz, 90-647 Lodz, Poland; (C.C.); (J.C.)
| | - Janusz Blasiak
- Department of Molecular Genetics, Faculty of Biology and Environmental Protection, University of Lodz, 90-236 Lodz, Poland
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42
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Gupta L, Khandelwal D, Kalra S, Gupta P, Dutta D, Aggarwal S. Ketogenic diet in endocrine disorders: Current perspectives. J Postgrad Med 2019; 63:242-251. [PMID: 29022562 PMCID: PMC5664869 DOI: 10.4103/jpgm.jpgm_16_17] [Citation(s) in RCA: 63] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Ketogenic diet (KD) is a high-fat, adequate-protein, and low-carbohydrate diet that leads to nutritional ketosis, long known for antiepileptic effects and has been used therapeutically to treat refractory epilepsy. This review attempts to summarize the evidence and clinical application of KD in diabetes, obesity, and other endocrine disorders. KD is usually animal protein based. An empiric vegetarian Indian variant of KD has been provided keeping in mind the Indian food habits. KD has beneficial effects on cardiac ischemic preconditioning, improves oxygenation in patients with respiratory failure, improves glycemic control in diabetics, is associated with significant weight loss, and has a beneficial impact on polycystic ovarian syndrome. Multivitamin supplementations are recommended with KD. Recently, ketones are being proposed as super-metabolic fuel; and KD is currently regarded as apt dietary therapy for "diabesity."
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Affiliation(s)
- L Gupta
- Department of Dietetics, Maharaja Agrasen Hospital, New Delhi, India
| | - D Khandelwal
- Department of Endocrinology, Maharaja Agrasen Hospital, New Delhi, India
| | - S Kalra
- Department of Endocrinology, Bharti Hospital and Bharti Research Institute of Diabetes and Endocrinology, Karnal, Haryana, India
| | - P Gupta
- Department of Paediatrics, Maharaja Agrasen Hospital, New Delhi, India
| | - D Dutta
- Department of Endocrinology, Venkateshwar Hospitals, New Delhi, India
| | - S Aggarwal
- Department of Medicine, Division of Endocrinology, Pandit Bhagwat Dayal Sharma Postgraduate Institute of Medical Sciences, Rohtak, Haryana, India
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Abstract
Ketogenic diet (KD) is a nutritional regimen characterized by a high-fat and an adequate protein content and a very low carbohydrate level (less than 20 g per day or 5% of total daily energy intake). The insufficient level of carbohydrates forces the body to primarily use fat instead of sugar as a fuel source. Due to its characteristic, KD has often been used to treat metabolic disorders, obesity, cardiovascular disease, and type 2 diabetes. Skeletal muscle constitutes 40% of total body mass and is one of the major sites of glucose disposal. KD is a well-defined approach to induce weight loss, with its role in muscle adaptation and muscle hypertrophy less understood. Considering this lack of knowledge, the aim of this review was to examine the scientific evidence about the effects of KD on muscle hypertrophy. We first described the mechanisms of muscle hypertrophy per se, and secondly, we discussed the characteristics and the metabolic function of KD. Ultimately, we provided the potential mechanism that could explain the influence of KD on skeletal muscle hypertrophy.
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The Influence of Meal Frequency and Timing on Health in Humans: The Role of Fasting. Nutrients 2019; 11:nu11040719. [PMID: 30925707 PMCID: PMC6520689 DOI: 10.3390/nu11040719] [Citation(s) in RCA: 200] [Impact Index Per Article: 40.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2019] [Revised: 03/19/2019] [Accepted: 03/26/2019] [Indexed: 02/06/2023] Open
Abstract
The influence of meal frequency and timing on health and disease has been a topic of interest for many years. While epidemiological evidence indicates an association between higher meal frequencies and lower disease risk, experimental trials have shown conflicting results. Furthermore, recent prospective research has demonstrated a significant increase in disease risk with a high meal frequency (≥6 meals/day) as compared to a low meal frequency (1⁻2 meals/day). Apart from meal frequency and timing we also have to consider breakfast consumption and the distribution of daily energy intake, caloric restriction, and night-time eating. A central role in this complex scenario is played by the fasting period length between two meals. The physiological underpinning of these interconnected variables may be through internal circadian clocks, and food consumption that is asynchronous with natural circadian rhythms may exert adverse health effects and increase disease risk. Additionally, alterations in meal frequency and meal timing have the potential to influence energy and macronutrient intake.A regular meal pattern including breakfast consumption, consuming a higher proportion of energy early in the day, reduced meal frequency (i.e., 2⁻3 meals/day), and regular fasting periods may provide physiological benefits such as reduced inflammation, improved circadian rhythmicity, increased autophagy and stress resistance, and modulation of the gut microbiota.
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45
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Paoli A. Advances in Sport and Performance Nutrition. Nutrients 2019; 11:nu11030538. [PMID: 30832303 PMCID: PMC6471132 DOI: 10.3390/nu11030538] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2019] [Accepted: 03/01/2019] [Indexed: 12/25/2022] Open
Affiliation(s)
- Antonio Paoli
- Department of Biomedical Sciences, University of Padova, 35131 Padova, Italy.
- Faculty of Sport Sciences, UCAM, Catholic University of Murcia, 30107 Murcia, Spain.
- European Sport Nutrition Society, 43126 Parma, Italy.
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Evidence-based nutritional and pharmacological interventions targeting chronic low-grade inflammation in middle-age and older adults: A systematic review and meta-analysis. Ageing Res Rev 2018; 46:42-59. [PMID: 29803716 DOI: 10.1016/j.arr.2018.05.004] [Citation(s) in RCA: 110] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2018] [Revised: 05/21/2018] [Accepted: 05/21/2018] [Indexed: 12/20/2022]
Abstract
Growing evidence suggests chronic low-grade inflammation (LGI) as a possible mechanism underlying the aging process. Some biological and pharmaceutical compounds may reduce systemic inflammation and potentially avert functional decline occurring with aging. The aim of the present meta-analysis was to examine the association of pre-selected interventions on two established biomarkers of inflammation, interleukin-6 (IL-6), and C-reactive protein (CRP) in middle-age and older adults with chronic LGI. We reviewed the literature on potential anti-inflammatory compounds, selecting them based on safety, tolerability, acceptability, innovation, affordability, and evidence from randomized controlled trials. Six compounds met all five inclusion criteria for our systematic review and meta-analysis: angiotensin II receptor blockers (ARBs), metformin, omega-3, probiotics, resveratrol and vitamin D. We searched in MEDLINE, PubMed and EMBASE database until January 2017. A total of 49 articles fulfilled the selection criteria. Effect size of each study and pooled effect size for each compound were measured by the standardized mean difference. I2 was computed to measure heterogeneity of effects across studies. The following compounds showed a significant small to large effect in reducing IL-6 levels: probiotics (-0.68 pg/ml), ARBs (-0.37 pg/ml) and omega-3 (-0.19 pg/ml). For CRP, a significant small to medium effect was observed with probiotics (-0.43 mg/L), ARBs (-0.2 mg/L), omega-3 (-0.17 mg/L) and metformin (-0.16 mg/L). Resveratrol and vitamin D were not associated with any significant reductions in either biomarker. These results suggest that nutritional and pharmaceutical compounds can significantly reduce established biomarkers of systemic inflammation in middle-age and older adults. The findings should be interpreted with caution, however, due to the evidence of heterogeneity across the studies.
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Albracht-Schulte K, Kalupahana NS, Ramalingam L, Wang S, Rahman SM, Robert-McComb J, Moustaid-Moussa N. Omega-3 fatty acids in obesity and metabolic syndrome: a mechanistic update. J Nutr Biochem 2018; 58:1-16. [PMID: 29621669 DOI: 10.1016/j.jnutbio.2018.02.012] [Citation(s) in RCA: 166] [Impact Index Per Article: 27.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2016] [Revised: 01/24/2018] [Accepted: 02/22/2018] [Indexed: 02/06/2023]
Abstract
Strategies to reduce obesity have become public health priorities as the prevalence of obesity has risen in the United States and around the world. While the anti-inflammatory and hypotriglyceridemic properties of long-chain omega-3 polyunsaturated fatty acids (n-3 PUFAs) are well known, their antiobesity effects and efficacy against metabolic syndrome, especially in humans, are still under debate. In animal models, evidence consistently suggests a role for n-3 PUFAs in reducing fat mass, particularly in the retroperitoneal and epididymal regions. In humans, however, published research suggests that though n-3 PUFAs may not aid weight loss, they may attenuate further weight gain and could be useful in the diet or as a supplement to help maintain weight loss. Proposed mechanisms by which n-3 PUFAs may work to improve body composition and counteract obesity-related metabolic changes include modulating lipid metabolism; regulating adipokines, such as adiponectin and leptin; alleviating adipose tissue inflammation; promoting adipogenesis and altering epigenetic mechanisms.
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Affiliation(s)
- Kembra Albracht-Schulte
- Department of Nutritional Sciences, Texas Tech University, Lubbock, TX, USA; Obesity Research Cluster, Texas Tech University, Lubbock, TX, USA
| | - Nishan Sudheera Kalupahana
- Department of Nutritional Sciences, Texas Tech University, Lubbock, TX, USA; Obesity Research Cluster, Texas Tech University, Lubbock, TX, USA; Department of Physiology, Faculty of Medicine, University of Peradeniya, Peradeniya, Sri Lanka.
| | - Latha Ramalingam
- Department of Nutritional Sciences, Texas Tech University, Lubbock, TX, USA; Obesity Research Cluster, Texas Tech University, Lubbock, TX, USA
| | - Shu Wang
- Department of Nutritional Sciences, Texas Tech University, Lubbock, TX, USA; Obesity Research Cluster, Texas Tech University, Lubbock, TX, USA
| | - Shaikh Mizanoor Rahman
- Department of Nutritional Sciences, Texas Tech University, Lubbock, TX, USA; Obesity Research Cluster, Texas Tech University, Lubbock, TX, USA
| | - Jacalyn Robert-McComb
- Obesity Research Cluster, Texas Tech University, Lubbock, TX, USA; Department of Kinesiology, Texas Tech University, Lubbock, TX, USA
| | - Naima Moustaid-Moussa
- Department of Nutritional Sciences, Texas Tech University, Lubbock, TX, USA; Obesity Research Cluster, Texas Tech University, Lubbock, TX, USA.
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Bosco G, Rizzato A, Quartesan S, Camporesi E, Mangar D, Paganini M, Cenci L, Malacrida S, Mrakic-Sposta S, Moretti S, Paoli A. Effects of the Ketogenic diet in overweight divers breathing Enriched Air Nitrox. Sci Rep 2018; 8:2655. [PMID: 29422679 PMCID: PMC5805750 DOI: 10.1038/s41598-018-20933-w] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2017] [Accepted: 01/25/2018] [Indexed: 02/07/2023] Open
Abstract
Central Nervous System Oxygen Toxicity (CNS-OT) is one of the most harmful effects of Enriched Air Nitrox (EAN) diving. Protective factors of the Ketogenic Diet (KD) are antioxidant activity, the prevention of mitochondrial damage and anti-inflammatory mechanisms. We aimed to investigate if a short-term KD may reduce oxidative stress and inflammation during an hyperoxic dive. Samples from six overweight divers (mean ± SD, age: 55.2 ± 4.96 years; BMI: 26.7 ± 0.86 kg/m2) were obtained a) before and after a dive breathing Enriched Air Nitrox and performing 20-minute mild underwater exercise, b) after a dive (same conditions) performed after 7 days of KD. We measured urinary 8-isoprostane and 8-OH-2-deoxyguanosine and plasmatic IL-1β, IL-6 and TNF-α levels. The KD was successful in causing weight loss (3.20 ± 1.31 Kgs, p < 0.01) and in limiting lipid peroxidation (3.63 ± 1.16 vs. 1.11 ± 0.22; p < 0.01) and inflammatory response (IL-1β = 105.7 ± 25.52 vs. 57.03 ± 16.32, p < 0.05; IL-6 = 28.91 ± 4.351 vs. 14.08 ± 1.74, p < 0.001; TNF-α = 78.01 ± 7.69 vs. 64.68 ± 14.56, p < 0.05). A short-term KD seems to be effective in weight loss, in decreasing inflammation and protective towards lipid peroxidation during hyperoxic diving.
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Affiliation(s)
- Gerardo Bosco
- Environmental physiology & medicine Lab, Department of Biomedical Sciences, University of Padova, Padova, Italy
| | - Alex Rizzato
- Environmental physiology & medicine Lab, Department of Biomedical Sciences, University of Padova, Padova, Italy.
| | - Silvia Quartesan
- Environmental physiology & medicine Lab, Department of Biomedical Sciences, University of Padova, Padova, Italy
| | | | | | - Matteo Paganini
- Emergency Medicine Residency Program, University of Padova, Padova, Italy
| | - Lorenzo Cenci
- Environmental physiology & medicine Lab, Department of Biomedical Sciences, University of Padova, Padova, Italy
| | - Sandro Malacrida
- Environmental physiology & medicine Lab, Department of Biomedical Sciences, University of Padova, Padova, Italy
| | | | - Sara Moretti
- CNR Institute of Bioimaging and Molecular Physiology, Segrate (Milano), Italy
| | - Antonio Paoli
- Environmental physiology & medicine Lab, Department of Biomedical Sciences, University of Padova, Padova, Italy
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Donovan MG, Selmin OI, Doetschman TC, Romagnolo DF. Mediterranean Diet: Prevention of Colorectal Cancer. Front Nutr 2017; 4:59. [PMID: 29259973 PMCID: PMC5723389 DOI: 10.3389/fnut.2017.00059] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2017] [Accepted: 11/20/2017] [Indexed: 12/16/2022] Open
Abstract
Colorectal cancer (CRC) is the third most common cancer diagnosis and the second and third leading cause of cancer mortality in men and women, respectively. However, the majority of CRC cases are the result of sporadic tumorigenesis via the adenoma–carcinoma sequence. This process can take up to 20 years, suggesting an important window of opportunity exists for prevention such as switching toward healthier dietary patterns. The Mediterranean diet (MD) is a dietary pattern associated with various health benefits including protection against cardiovascular disease, diabetes, obesity, and various cancers. In this article, we review publications available in the PubMed database within the last 10 years that report on the impact of a MD eating pattern on prevention of CRC. To assist the reader with interpretation of the results and discussion, we first introduce indexes and scoring systems commonly used to experimentally determine adherence to a MD, followed by a brief introduction of the influence of the MD pattern on inflammatory bowel disease, which predisposes to CRC. Finally, we discuss key biological mechanisms through which specific bioactive food components commonly present in the MD are proposed to prevent or delay the development of CRC. We close with a discussion of future research frontiers in CRC prevention with particular reference to the role of epigenetic mechanisms and microbiome related to the MD eating pattern.
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Affiliation(s)
- Micah G Donovan
- Department of Nutritional Sciences, University of Arizona, Tucson, AZ, United States
| | - Ornella I Selmin
- Department of Nutritional Sciences, University of Arizona, Tucson, AZ, United States.,University of Arizona Cancer Center, Tucson, AZ, United States
| | - Tom C Doetschman
- University of Arizona Cancer Center, Tucson, AZ, United States.,Department of Molecular and Cellular Medicine, University of Arizona, Tucson, AZ, United States
| | - Donato F Romagnolo
- Department of Nutritional Sciences, University of Arizona, Tucson, AZ, United States.,University of Arizona Cancer Center, Tucson, AZ, United States
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Abstract
A large body of research data suggests that traditional dietary habits and lifestyle unique to the Mediterranean region (Mediterranean diet, MD) lower the incidence of chronic diseases and improve longevity. These data contrast with troubling statistics in the United States and other high income countries pointing to an increase in the incidence of chronic diseases and the projected explosion in cost of medical care associated with an aging population. In 2013, the MD was inscribed by UNESCO in the "Representative List of the Intangible Cultural Heritage of Humanity." The 2015-2020 Dietary Guidelines for Americans included the MD as a healthy dietary pattern. Therefore, specific objectives of this article are to provide an overview of the nutritional basis of this healthful diet, its metabolic benefits, and its role in multiple aspects of disease prevention and healthy aging. Whereas recommendations about the MD often focus on specific foods or bioactive compounds, we suggest that the eating pattern as a whole likely contributes to the health promoting effects of the MD.
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Affiliation(s)
- Donato F Romagnolo
- is professor in the Department of Nutritional Sciences and The University of Arizona Cancer Center and co-director of The University of Arizona Mediterranean Diet and Health Study Abroad Program. Dr Romagnolo is a collaborator on various research projects related to nutritional prevention of cancer epigenetics. He is a coeditor of a volume entitled "Mediterranean Diet: Dietary Guidelines and Impact on Health and Disease," which was published as the proceedings of the 2015 Research Frontiers in Nutritional Sciences Conference Series held at The University of Arizona with the grant support of the US Department of Agriculture and is composed of chapter contributions by speakers
| | - Ornella I Selmin
- is professor in the Department of Nutritional Sciences and The University of Arizona Cancer Center and co-director of The University of Arizona Mediterranean Diet and Health Study Abroad Program. Dr Romagnolo is a collaborator on various research projects related to nutritional prevention of cancer epigenetics. He is a coeditor of a volume entitled "Mediterranean Diet: Dietary Guidelines and Impact on Health and Disease," which was published as the proceedings of the 2015 Research Frontiers in Nutritional Sciences Conference Series held at The University of Arizona with the grant support of the US Department of Agriculture and is composed of chapter contributions by speakers
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