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Wynne-Ellis MM, Mursu JJ, Tuomainen TP, Bertone-Johnson E, Salonen JT, Virtanen JK. Dietary fat quality and serum androgen concentrations in middle-aged men. Eur J Clin Nutr 2024; 78:99-106. [PMID: 37891228 PMCID: PMC10853065 DOI: 10.1038/s41430-023-01358-9] [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: 11/02/2022] [Revised: 10/08/2023] [Accepted: 10/10/2023] [Indexed: 10/29/2023]
Abstract
BACKGROUND/OBJECTIVES Average testosterone concentrations in men have declined over the last few decades. The reasons for this are not fully known, but changes in dietary fat quality have been suggested to have a role. This study aimed to investigate the associations of different dietary fatty acids with serum androgen concentrations. SUBJECTS/METHODS A total of 2546 men with a mean age of 53 from the Kuopio Ischaemic Heart Disease Risk Factor Study were included in this cross-sectional study. Associations between dietary saturated (SFA), monounsaturated (MUFA), polyunsaturated (PUFA) and trans (TFA) fatty acids and concentrations of serum total and free testosterone and steroid hormone binding globulin (SHBG) were analyzed with analysis of covariance and linear regression analysis. Associations of isocaloric replacement of nutrients and androgen concentrations were analyzed with multivariate nutrient-density models. RESULTS After adjustment for age, examination year and energy intake, higher SFA intake was associated with higher serum total and free testosterone and SHBG concentrations, and higher PUFA intake with lower concentrations. However, the associations were attenuated and not statistically significant after further adjustments for potential confounders. MUFA and TFA intakes were not associated with androgen concentrations. In isocaloric substitution models, replacing dietary protein with SFA was associated with higher serum total testosterone and SHBG concentrations. After excluding men with history of CVD or diabetes (n = 1021), no statistically significant associations were found. CONCLUSIONS Dietary fat quality was not independently associated with serum androgen concentrations in middle-aged men. However, replacing protein with SFA may be associated with higher serum androgen concentrations.
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Affiliation(s)
- Miika M Wynne-Ellis
- University of Eastern Finland, Institute of Public Health and Clinical Nutrition, Kuopio, Finland
| | - Jaakko J Mursu
- University of Jyväskylä, Faculty of Sport and Health Sciences, Jyväskylä, Finland
| | - Tomi-Pekka Tuomainen
- University of Eastern Finland, Institute of Public Health and Clinical Nutrition, Kuopio, Finland
| | | | - Jukka T Salonen
- University of Helsinki, Faculty of Medicine, Department of Public Health, Helsinki, Finland
- Metabolic Analytical Services Oy, Helsinki, Finland
| | - Jyrki K Virtanen
- University of Eastern Finland, Institute of Public Health and Clinical Nutrition, Kuopio, Finland.
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Rips L, Toom A, Kuik R, Varblane A, Mölder H, Tammaru M, Kull M, Ööpik V, Kartus JT, Gapeyeva H, Rahu M. Seven-month wintertime supplementation of 1200 IU vitamin D has no effect on hand grip strength in young, physically active males: A randomized, controlled study. J Int Soc Sports Nutr 2022; 19:437-454. [PMID: 35875694 PMCID: PMC9302007 DOI: 10.1080/15502783.2022.2100718] [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] [Indexed: 11/02/2022] Open
Abstract
Background Study Design Methods Results Conclusion
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Affiliation(s)
- Leho Rips
- Tartu University Hospital, Sports Medicine and Rehabilitation Clinic, Tartu, Estonia
- University of Tartu, Department of Sports Medicine and Rehabilitation, Institute of Clinical Medicine, Faculty of Medicine, Tartu, Estonia
| | - Alar Toom
- Central Finland Central Hospital, Department of Orthopaedics, Jyväskylä, Finland
| | - Rein Kuik
- Tartu University Hospital, Sports Medicine and Rehabilitation Clinic, Tartu, Estonia
| | - Ahti Varblane
- Estonian National Defence College, Centre of Military Disaster Medicine, Tartu, Estonia
| | - Hanno Mölder
- Medical Centre of the 2nd Infantry Brigade CSS Battalion, Estonian Defence Forces, Võru, Estonia
| | - Marika Tammaru
- East-Tallinn Central Hospital, Research Department, Tallinn, Estonia
| | - Mart Kull
- Viljandi Hospital, Jämejala Viljandi, Estonia
| | - Vahur Ööpik
- University of Tartu, Institute of Sport Sciences and Physiotherapy, Tartu, Estonia
| | - Jüri-Toomas Kartus
- Tartu University Hospital, Sports Medicine and Rehabilitation Clinic, Tartu, Estonia
- University of Tartu, Department of Sports Medicine and Rehabilitation, Institute of Clinical Medicine, Faculty of Medicine, Tartu, Estonia
- University of Gothenburg, Institute of Clinical Siences, Sahlgrenska Academy, Göteborg, Sweden
| | - Helena Gapeyeva
- University of Tartu, Institute of Sport Sciences and Physiotherapy, Tartu, Estonia
- East-Tallinn Central Hospital, Clinic of Medical Rehabilitation, Tallinn, Estonia
| | - Madis Rahu
- Tartu University Hospital, Sports Medicine and Rehabilitation Clinic, Tartu, Estonia
- University of Tartu, Department of Sports Medicine and Rehabilitation, Institute of Clinical Medicine, Faculty of Medicine, Tartu, Estonia
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Pruszkowska-Przybylska P, Sitek A, Rosset I, Sobalska-Kwapis M, Słomka M, Strapagiel D, Żądzińska E, Morling N. Associations between second to fourth digit ratio, cortisol, vitamin D, and body composition among Polish children. Sci Rep 2021; 11:7029. [PMID: 33782473 PMCID: PMC8007693 DOI: 10.1038/s41598-021-86521-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Accepted: 03/16/2021] [Indexed: 01/17/2023] Open
Abstract
Associations between body characteristics (body composition: fat mass, muscle mass, cell, and water mass as well as body proportion—BMI), the 2D:4D digit ratio, and the concentrations of cortisol and vitamin (25-OH)D among Polish children have not been studied before. A total of 133 (73 girls and 60 boys) healthy Polish children aged 7–11 years were examined. The investigation was divided into three parts: measuring (the length of the second and fourth fingers in both hands, body composition, and body height and mass), questionnaires (socioeconomic status), and laboratory investigations (25-OH vitamin D and cortisol concentrations in saliva measured with ELISA methods). Boys with digit ratios below 1 had lower vitamin D concentration than those with digit ratios equal to or higher than 1 (Z = − 2.33; p = 0.019). Only boys with the male-typical pattern of 2D:4D digit ratio tended to have a lower 25-OH vitamin D concentration in saliva. Thus, it might indicate an effect of prenatal programming on the concentrations of steroid hormones in later life. Neither vitamin D, 2D:4D digit ratio nor the cortisol level was associated with the body components or proportions. More studies are needed to evaluate the molecular and genetic background of this phenomenon.
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Affiliation(s)
| | - Aneta Sitek
- Department of Anthropology, Faculty of Biology and Environmental Protection, University of Lodz, 90-237, Lodz, Poland
| | - Iwona Rosset
- Department of Anthropology, Faculty of Biology and Environmental Protection, University of Lodz, 90-237, Lodz, Poland
| | - Marta Sobalska-Kwapis
- The Biobank Lab, Department of Molecular Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, Lodz, Poland.,BBMRI.Pl Consortium, Wrocław, Poland
| | - Marcin Słomka
- The Biobank Lab, Department of Molecular Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, Lodz, Poland.,BBMRI.Pl Consortium, Wrocław, Poland
| | - Dominik Strapagiel
- The Biobank Lab, Department of Molecular Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, Lodz, Poland.,BBMRI.Pl Consortium, Wrocław, Poland
| | - Elżbieta Żądzińska
- Department of Anthropology, Faculty of Biology and Environmental Protection, University of Lodz, 90-237, Lodz, Poland.,Biological Anthropology and Comparative Anatomy Research Unit, School of Medicine, The University of Adelaide, Adelaide, SA, 5005, Australia
| | - Niels Morling
- Section of Forensic Genetics, Department of Forensic Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Frederik V's Vej 11, 2100, Copenhagen, Denmark
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