1
|
Dörner R, Hägele FA, Müller MJ, Seidel U, Rimbach G, Bosy-Westphal A. Effect of exogenous and endogenous ketones on respiratory exchange ratio and glucose metabolism in healthy subjects. Am J Physiol Cell Physiol 2024; 326:C1027-C1033. [PMID: 38314726 DOI: 10.1152/ajpcell.00429.2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Revised: 01/31/2024] [Accepted: 01/31/2024] [Indexed: 02/07/2024]
Abstract
This study examined the effect of exogenous ketone bodies (KB) on oxygen consumption (V̇o2), carbon dioxide production (V̇co2), and glucose metabolism. The data were compared with the effects of endogenous ketonemia during both, a ketogenic diet or fasting. Eight healthy individuals [24.1 ± 2.5 yr, body mass index (BMI) 24.3 ± 3.1 kg/m2] participated in a crossover intervention study and were studied in a whole-room indirect calorimeter (WRIC) to assess macronutrient oxidation following four 24-h interventions: isocaloric controlled mixed diet (ISO), ISO supplemented with ketone salts (38.7 g of β-hydroxybutyrate/day, EXO), isocaloric ketogenic diet (KETO), and total fasting (FAST). A physical activity level of 1.65 was obtained. In addition to plasma KB, 24-h C-peptide and KB excretion rates in the urine and postprandial glucose and insulin levels were measured. Although 24-h KB excretion increased in response to KETO and FAST, there was a modest increase in response to EXO only (P < 0.05). When compared with ISO, V̇o2 significantly increased in KETO (P < 0.01) and EXO (P < 0.001), whereas there was no difference in FAST. V̇co2 increased in EXO but decreased in KETO (both P < 0.01) and FAST (P < 0.001), resulting in 24-h respiratory exchange ratios (RER) of 0.828 ± 0.024 (ISO) and 0.811 ± 0.024 (EXO) (P < 0.05). In response to EXO there were no differences in basal and postprandial glucose and insulin levels, as well as in insulin sensitivity. When compared with ISO, EXO, and KETO, FAST increased homeostatic model assessment β-cell function (HOMA-B) (all P < 0.05). In conclusion, at energy balance exogenous ketone salts decreased respiratory exchange ratio without affecting glucose tolerance.NEW & NOTEWORTHY Our findings revealed that during isocaloric nutrition, additional exogenous ketone salts increased V̇o2 and V̇co2 while lowering the respiratory exchange ratio (RER). Ketone salts had no effect on postprandial glucose metabolism.
Collapse
Affiliation(s)
- Rebecca Dörner
- Department of Human Nutrition, Institute of Human Nutrition and Food Sciences, Kiel University, Kiel, Germany
| | - Franziska A Hägele
- Department of Human Nutrition, Institute of Human Nutrition and Food Sciences, Kiel University, Kiel, Germany
| | - Manfred J Müller
- Department of Human Nutrition, Institute of Human Nutrition and Food Sciences, Kiel University, Kiel, Germany
| | - Ulrike Seidel
- Department of Food Sciences, Institute of Human Nutrition and Food Sciences, Kiel University, Kiel, Germany
| | - Gerald Rimbach
- Department of Food Sciences, Institute of Human Nutrition and Food Sciences, Kiel University, Kiel, Germany
| | - Anja Bosy-Westphal
- Department of Human Nutrition, Institute of Human Nutrition and Food Sciences, Kiel University, Kiel, Germany
| |
Collapse
|
2
|
Jans K, Lüersen K, von Frieling J, Roeder T, Rimbach G. Dietary lithium stimulates female fecundity in Drosophila melanogaster. Biofactors 2024; 50:326-346. [PMID: 37706424 DOI: 10.1002/biof.2007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Accepted: 08/28/2023] [Indexed: 09/15/2023]
Abstract
The trace element lithium exerts a versatile bioactivity in humans, to some extend overlapping with in vivo findings in the model organism Drosophila melanogaster. A potentially essential function of lithium in reproduction has been suggested since the 1980s and multiple studies have since been published postulating a regulatory role of lithium in female gametogenesis. However, the impact of lithium on fruit fly egg production has not been at the center of attention to date. In the present study, we report that dietary lithium (0.1-5.0 mM LiCl) substantially improved life time egg production in D. melanogaster w1118 females, with a maximum increase of plus 45% when supplementing 1.0 mM LiCl. This phenomenon was not observed in the insulin receptor mutant InRE19, indicating a potential involvement of insulin-like signaling in the lithium-mediated fecundity boost. Analysis of the whole-body and ovarian transcriptome revealed that dietary lithium affects the mRNA levels of genes encoding proteins related to processes of follicular maturation. To the best of our knowledge, this is the first report on dietary lithium acting as an in vivo fecundity stimulant in D. melanogaster, further supporting the suggested benefit of the trace element in female reproduction.
Collapse
Affiliation(s)
- Katharina Jans
- Division of Food Science, Institute of Human Nutrition and Food Science, University of Kiel, Kiel, Germany
| | - Kai Lüersen
- Division of Food Science, Institute of Human Nutrition and Food Science, University of Kiel, Kiel, Germany
| | - Jakob von Frieling
- Division of Molecular Physiology, Institute of Zoology, University of Kiel, Kiel, Germany
| | - Thomas Roeder
- Division of Molecular Physiology, Institute of Zoology, University of Kiel, Kiel, Germany
| | - Gerald Rimbach
- Division of Food Science, Institute of Human Nutrition and Food Science, University of Kiel, Kiel, Germany
| |
Collapse
|
3
|
Huebbe P, Bilke S, Rueter J, Schloesser A, Campbel G, Glüer CC, Lucius R, Röcken C, Tholey A, Rimbach G. Human APOE4 Protects High-Fat and High-Sucrose Diet Fed Targeted Replacement Mice against Fatty Liver Disease Compared to APOE3. Aging Dis 2024; 15:259-281. [PMID: 37450924 PMCID: PMC10796091 DOI: 10.14336/ad.2023.0530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Accepted: 05/30/2023] [Indexed: 07/18/2023] Open
Abstract
Recent genome- and exome-wide association studies suggest that the human APOE ε4 allele protects against non-alcoholic fatty liver disease (NAFLD), while ε3 promotes hepatic steatosis and steatohepatitis. The present study aimed at examining the APOE genotype-dependent development of fatty liver disease and its underlying mechanisms in a targeted replacement mouse model. Male mice expressing the human APOE3 or APOE4 protein isoforms on a C57BL/6J background and unmodified C57BL/6J mice were chronically fed a high-fat and high-sucrose diet to induce obesity. After 7 months, body weight gain was more pronounced in human APOE than endogenous APOE expressing mice with elevated plasma biomarkers suggesting aggravated metabolic dysfunction. APOE3 mice exhibited the highest liver weights and, compared to APOE4, massive hepatic steatosis. An untargeted quantitative proteome analysis of the liver identified a high number of proteins differentially abundant in APOE3 versus APOE4 mice. The majority of the higher abundant proteins in APOE3 mice could be grouped to inflammation and damage-associated response, and lipid storage, amongst others. Results of the targeted qRT-PCR and Western blot analyses contribute to the overall finding that APOE3 as opposed to APOE4 promotes hepatic steatosis, inflammatory- and damage-associated response signaling and fibrosis in the liver of obese mice. Our experimental data substantiate the observation of an increased NAFLD-risk associated with the human APOEε3 allele, while APOEε4 appears protective. The underlying mechanisms of the protection possibly involve a higher capacity of nonectopic lipid deposition in subcutaneous adipose tissue and lower hepatic pathogen recognition in the APOE4 mice.
Collapse
Affiliation(s)
- Patricia Huebbe
- Institute of Human Nutrition and Food Science, Kiel University, D-24118 Kiel, Germany.
| | - Stephanie Bilke
- Institute of Experimental Medicine, Proteomics & Bioanalytics, Kiel University, D-24105 Kiel, Germany.
| | - Johanna Rueter
- Institute of Human Nutrition and Food Science, Kiel University, D-24118 Kiel, Germany.
| | - Anke Schloesser
- Institute of Human Nutrition and Food Science, Kiel University, D-24118 Kiel, Germany.
| | - Graeme Campbel
- Section Biomedical Imaging, Department of Radiology and Neuroradiology, Kiel University, D-24118 Kiel, Germany.
| | - Claus-C. Glüer
- Section Biomedical Imaging, Department of Radiology and Neuroradiology, Kiel University, D-24118 Kiel, Germany.
| | - Ralph Lucius
- Anatomical Institute, Kiel University, D-24118 Kiel, Germany.
| | - Christoph Röcken
- Department of Pathology, Kiel University and University Hospital Schleswig-Holstein, Campus Kiel, D-24105 Kiel, Germany.
| | - Andreas Tholey
- Institute of Experimental Medicine, Proteomics & Bioanalytics, Kiel University, D-24105 Kiel, Germany.
| | - Gerald Rimbach
- Institute of Human Nutrition and Food Science, Kiel University, D-24118 Kiel, Germany.
| |
Collapse
|
4
|
Alkaff FF, Kremer D, Niekolaas TM, van den Born J, Rimbach G, Tseng TL, Berger SP, Bakker SJL, de Borst MH. Urinary vanin-1, tubular injury, and graft failure in kidney transplant recipients. Sci Rep 2024; 14:2283. [PMID: 38280883 PMCID: PMC10821939 DOI: 10.1038/s41598-024-52635-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2023] [Accepted: 01/22/2024] [Indexed: 01/29/2024] Open
Abstract
We investigated whether urinary vascular non-inflammatory molecule-1 (vanin-1), a promising early-onset tubular injury marker, correlates with other established tubular injury markers and is associated with graft failure in kidney transplant recipients (KTR). We measured 24 h urinary vanin-1 excretion in 656 KTR (age 53 ± 13 years, 43% female, estimated glomerular filtration rate (eGFR) 53 ± 21 mL/min/1.73 m2) who had undergone kidney transplantation ≥ 1 year. The median 24 h urinary vanin-1 excretion was 145 [51-331] pmol/24 h. 24 h urinary vanin-1 excretion correlated weakly but significantly with other tubular injury markers (ρ = 0.14, p < 0.001 with urinary liver-type fatty acid binding protein, ρ = 0.13, p = 0.001 with urinary post-translationally modified fetuin-A protein, and ρ = 0.10, p = 0.011 with plasma neutrophil gelatinase-associated lipocalin) and with eGFR (ρ = - 0.13, p = 0.001). During a median follow-up of 7.4 [4.9-8.0] years, 94 (14%) KTR developed death-censored graft failure. In multivariable Cox regression analyses, 24 h urinary vanin-1 excretion was not associated with an increased risk of death-censored graft failure (adjusted hazard ratio [95% confidence interval] = 0.96 [0.86-1.07], p = 0.5). In conclusion, our findings do not support the role of urinary vanin-1 as a biomarker of graft failure after kidney transplantation.
Collapse
Affiliation(s)
- Firas F Alkaff
- Division of Nephrology, Department of Internal Medicine, University of Groningen, University Medical Center Groningen, Hanzeplein 1, Groningen, 9713 GZ, The Netherlands.
- Division of Pharmacology and Therapy, Department of Anatomy, Histology, and Pharmacology, Faculty of Medicine Universitas Airlangga, Jl. Mayjen Prof Dr. Moestopo No 47, Surabaya, East Java, 60131, Indonesia.
| | - Daan Kremer
- Division of Nephrology, Department of Internal Medicine, University of Groningen, University Medical Center Groningen, Hanzeplein 1, Groningen, 9713 GZ, The Netherlands
| | - Tessa M Niekolaas
- Division of Transplantation Immunology, Department of Laboratory Medicine, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Jacob van den Born
- Division of Nephrology, Department of Internal Medicine, University of Groningen, University Medical Center Groningen, Hanzeplein 1, Groningen, 9713 GZ, The Netherlands
| | - Gerald Rimbach
- Institute of Human Nutrition and Food Science, University of Kiel, Kiel, Germany
| | | | - Stefan P Berger
- Division of Nephrology, Department of Internal Medicine, University of Groningen, University Medical Center Groningen, Hanzeplein 1, Groningen, 9713 GZ, The Netherlands
| | - Stephan J L Bakker
- Division of Nephrology, Department of Internal Medicine, University of Groningen, University Medical Center Groningen, Hanzeplein 1, Groningen, 9713 GZ, The Netherlands
| | - Martin H de Borst
- Division of Nephrology, Department of Internal Medicine, University of Groningen, University Medical Center Groningen, Hanzeplein 1, Groningen, 9713 GZ, The Netherlands.
| |
Collapse
|
5
|
Lüersen K, Jöckel T, Chin D, Demetrowitsch T, Schwarz K, Rimbach G. Reduced iron and cobalt levels in response to curcumin supplementation are not responsible for the prolonged larval development and do not affect the oxidative stress tolerance and polyamine status of D. melanogaster. Biofactors 2024; 50:161-180. [PMID: 37597249 DOI: 10.1002/biof.2000] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Accepted: 07/23/2023] [Indexed: 08/21/2023]
Abstract
Recent reports indicated that the phytochemical curcumin possesses iron-chelating activity. Here, by employing the fruit fly Drosophila melanogaster, we conducted feeding studies supplementing curcumin or, as a control, the iron chelator bathophenanthroline (BPA). First, the absorption and further metabolization of dietary curcuminoids were proved by metabolomics analyses. Next, we found that 0.2% dietary curcumin, similar to BPA, lowered the iron but also the cobalt content, and to a lesser extent affected the manganese and zinc status. Supplementation during larval stages was required and sufficient for both compounds to elicit these alterations in adult animals. However, curcumin-induced retarded larval development was not attributable to the changed trace metal status. In addition, a reduction in the iron content of up to 70% by curcumin or BPA supplementation did not reduce heme-dependent catalase activity and tolerance toward H2 O2 in D. melanogaster. Moreover, polyamines were not influenced by curcumin treatment and decreased iron levels. This was confirmed for selected organs from 0.2% curcumin-treated mice, except for the spleen. Here, elevated spermidine level and concomitant upregulation of genes involved in polyamine production were associated with a putatively anemia-derived increased spleen mass. Our data underline that the metal-chelating property of curcumin needs to be considered in feeding studies.
Collapse
Affiliation(s)
- Kai Lüersen
- Division of Food Science, Institute of Human Nutrition and Food Science, University of Kiel, Kiel, Germany
| | - Tobias Jöckel
- Division of Food Science, Institute of Human Nutrition and Food Science, University of Kiel, Kiel, Germany
| | - Dawn Chin
- Division of Food Science, Institute of Human Nutrition and Food Science, University of Kiel, Kiel, Germany
| | - Tobias Demetrowitsch
- Division of Food Science, Institute of Human Nutrition and Food Science, University of Kiel, Kiel, Germany
| | - Karin Schwarz
- Division of Food Science, Institute of Human Nutrition and Food Science, University of Kiel, Kiel, Germany
| | - Gerald Rimbach
- Division of Food Science, Institute of Human Nutrition and Food Science, University of Kiel, Kiel, Germany
| |
Collapse
|
6
|
Övermöhle C, Rimbach G, Waniek S, Strathmann EA, Liedtke T, Stürmer P, Both M, Weber KS, Lieb W. Association of Plasma Zinc and Copper with Body Composition, Lipids and Inflammation in a Cross-Sectional General Population Sample from Germany. Nutrients 2023; 15:4460. [PMID: 37892535 PMCID: PMC10609917 DOI: 10.3390/nu15204460] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Revised: 10/15/2023] [Accepted: 10/18/2023] [Indexed: 10/29/2023] Open
Abstract
We aimed to relate circulating plasma zinc and copper to a broad spectrum of adiposity-related traits in a cross-sectional Northern German study (n = 841, 42% female, age: 61 ± 12 years). Zinc and copper were measured by inductively coupled plasma-mass spectrometry. Subcutaneous (SAT) and visceral (VAT) adipose tissue and liver fat were derived from 534 and 538 participants, respectively, via magnet resonance imaging. Associations were assessed using multivariable-adjusted linear regression analysis. An increase per one standard deviation (SD) in zinc was associated with direct linear increases in body mass index (BMI) (1.17%; 95% confidence interval (95%CI) 0.15-2.20%), waist circumference (0.85%; 95%CI 0.04-1.67%) and waist-to-hip ratio (0.64%; 95%CI 0.18-1.09%). A 1-SD increment in copper was directly associated with BMI (1.64%; 0.41-2.88%) and waist circumference (1.22%; 95%CI 0.25-2.20%) but not waist-to-hip ratio. Independent of fat intake, zinc displayed associations with VAT (5.73%; 95%CI 2.04-9.56%) and with liver fat (3.84%; 95%CI 1.49-6.25%), the latter association being also independent of BMI. Copper was directly associated with SAT (4.64%; 95%CI 0.31-9.15%) before accounting for BMI, but showed no association with VAT or liver fat. Observed associations suggest a possible relevance of zinc and copper to adiposity. Particularly zinc displayed associations with traits of abdominal adiposity and liver fat.
Collapse
Affiliation(s)
- Cara Övermöhle
- Institute of Epidemiology, Kiel University, 24105 Kiel, Germany (K.S.W.); (W.L.)
| | - Gerald Rimbach
- Institute of Human Nutrition and Food Science, Kiel University, 24118 Kiel, Germany
| | - Sabina Waniek
- Institute of Epidemiology, Kiel University, 24105 Kiel, Germany (K.S.W.); (W.L.)
| | - Eike A. Strathmann
- Institute of Epidemiology, Kiel University, 24105 Kiel, Germany (K.S.W.); (W.L.)
| | - Tatjana Liedtke
- Institute of Epidemiology, Kiel University, 24105 Kiel, Germany (K.S.W.); (W.L.)
| | - Paula Stürmer
- Institute of Epidemiology, Kiel University, 24105 Kiel, Germany (K.S.W.); (W.L.)
| | - Marcus Both
- Department of Diagnostic Radiology, University Hospital Schleswig-Holstein, 24105 Kiel, Germany
| | - Katharina S. Weber
- Institute of Epidemiology, Kiel University, 24105 Kiel, Germany (K.S.W.); (W.L.)
| | - Wolfgang Lieb
- Institute of Epidemiology, Kiel University, 24105 Kiel, Germany (K.S.W.); (W.L.)
| |
Collapse
|
7
|
Yepes-Calderón M, Kremer D, Post A, Sotomayor CG, Seidel U, Huebbe P, Knobbe TJ, Lüersen K, Eisenga MF, Corpeleijn E, de Borst MH, Navis GJ, Rimbach G, Bakker SJL. Low selenium intake is associated with risk of all-cause mortality in kidney transplant recipients. Nephrol Dial Transplant 2023; 38:2321-2329. [PMID: 36893803 DOI: 10.1093/ndt/gfad046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Indexed: 03/11/2023] Open
Abstract
BACKGROUND Deficiency of the essential trace element selenium is common in kidney transplant recipients (KTR), potentially hampering antioxidant and anti-inflammatory defence. Whether this impacts the long-term outcomes of KTR remains unknown. We investigated the association of urinary selenium excretion, a biomarker of selenium intake, with all-cause mortality; and its dietary determinants. METHODS In this cohort study, outpatient KTR with a functioning graft for longer than 1 year were recruited (2008-11). Baseline 24-h urinary selenium excretion was measured by mass spectrometry. Diet was assessed by a 177-item food frequency questionnaire, and protein intake was calculated by the Maroni equation. Multivariable linear and Cox regression analyses were performed. RESULTS In 693 KTR (43% men, 52 ± 12 years), baseline urinary selenium excretion was 18.8 (interquartile range 15.1-23.4) μg/24-h. During a median follow-up of 8 years, 229 (33%) KTR died. KTR in the first tertile of urinary selenium excretion, compared with those in the third, had over a 2-fold risk of all-cause mortality [hazard ratio 2.36 (95% confidence interval 1.70-3.28); P < .001], independent of multiple potential confounders including time since transplantation and plasma albumin concentration. The most important dietary determinant of urinary selenium excretion was protein intake (Standardized β 0.49, P < .001). CONCLUSIONS Relatively low selenium intake is associated with a higher risk of all-cause mortality in KTR. Dietary protein intake is its most important determinant. Further research is required to evaluate the potential benefit of accounting for selenium intake in the care of KTR, particularly among those with low protein intake.
Collapse
Affiliation(s)
- Manuela Yepes-Calderón
- Department of Internal Medicine, Division of Nephrology, University Medical Center Groningen, Groningen, Groningen, The Netherlands
| | - Daan Kremer
- Department of Internal Medicine, Division of Nephrology, University Medical Center Groningen, Groningen, Groningen, The Netherlands
| | - Adrian Post
- Department of Internal Medicine, Division of Nephrology, University Medical Center Groningen, Groningen, Groningen, The Netherlands
| | - Camilo G Sotomayor
- Department of Internal Medicine, Division of Nephrology, University Medical Center Groningen, Groningen, Groningen, The Netherlands
- Institute of Biomedical Sciences, Faculty of Medicine, University of Chile, Santiago de Chile, Santiago, Chile
| | - Ulrike Seidel
- Institute of Human Nutrition and Food Science, University of Kiel, Kiel, Schleswig-Holstein, Germany
| | - Patricia Huebbe
- Institute of Human Nutrition and Food Science, University of Kiel, Kiel, Schleswig-Holstein, Germany
| | - Tim J Knobbe
- Department of Internal Medicine, Division of Nephrology, University Medical Center Groningen, Groningen, Groningen, The Netherlands
| | - Kai Lüersen
- Institute of Human Nutrition and Food Science, University of Kiel, Kiel, Schleswig-Holstein, Germany
| | - Michele F Eisenga
- Department of Internal Medicine, Division of Nephrology, University Medical Center Groningen, Groningen, Groningen, The Netherlands
| | - Eva Corpeleijn
- Department of Epidemiology, University Medical Center Groningen, Groningen, Groningen, The Netherlands
| | - Martin H de Borst
- Department of Internal Medicine, Division of Nephrology, University Medical Center Groningen, Groningen, Groningen, The Netherlands
| | - Gerjan J Navis
- Department of Internal Medicine, Division of Nephrology, University Medical Center Groningen, Groningen, Groningen, The Netherlands
| | - Gerald Rimbach
- Institute of Human Nutrition and Food Science, University of Kiel, Kiel, Schleswig-Holstein, Germany
| | - Stephan J L Bakker
- Department of Internal Medicine, Division of Nephrology, University Medical Center Groningen, Groningen, Groningen, The Netherlands
| |
Collapse
|
8
|
Rueter J, Rimbach G, Huebbe P. Allelic variation within the major APOE CpG island affects its methylation in the brain of targeted replacement mice expressing human APOE. Biochim Biophys Acta Gene Regul Mech 2023; 1866:194942. [PMID: 37196888 DOI: 10.1016/j.bbagrm.2023.194942] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Revised: 05/07/2023] [Accepted: 05/10/2023] [Indexed: 05/19/2023]
Affiliation(s)
- Johanna Rueter
- Institute of Human Nutrition and Food Science, University of Kiel, Hermann-Rodewald-Strasse 6, D-24118 Kiel, Germany
| | - Gerald Rimbach
- Institute of Human Nutrition and Food Science, University of Kiel, Hermann-Rodewald-Strasse 6, D-24118 Kiel, Germany.
| | - Patricia Huebbe
- Institute of Human Nutrition and Food Science, University of Kiel, Hermann-Rodewald-Strasse 6, D-24118 Kiel, Germany
| |
Collapse
|
9
|
Hägele FA, Dörner R, Koop J, Lübken M, Seidel U, Rimbach G, Müller MJ, Bosy-Westphal A. Impact of one-day fasting, ketogenic diet or exogenous ketones on control of energy balance in healthy participants. Clin Nutr ESPEN 2023; 55:292-299. [PMID: 37202059 DOI: 10.1016/j.clnesp.2023.03.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Revised: 03/02/2023] [Accepted: 03/23/2023] [Indexed: 05/20/2023]
Abstract
BACKGROUND & AIMS Oral ketone supplements may mimic the beneficial effects of endogenous ketones on energy metabolism as β-hydroxybutyrate has been proposed to increase energy expenditure and improve body weight regulation. Therefore, our objective was to compare the effects of a one-day isocaloric ketogenic diet, fasting and supplementation with ketone salts on energy expenditure and appetite perception. METHODS Eight healthy young adults (4 women, 4 men, age 24 ± 3 years, BMI 24.3 ± 3.1 kg/m2) participated in a randomized cross-over trial with four 24 h-interventions in a whole room indirect calorimeter at a physical activity level of 1.65: (i) total fasting (FAST), (ii) isocaloric ketogenic diet (3.1% energy from carbohydrates (CHO), KETO), (iii) isocaloric control diet (47.4% energy from CHO, ISO), and (iv) ISO supplemented with 38.7 g/d ketone salts (exogenous ketones, EXO). Effects on serum ketone levels (15 h-iAUC), energy metabolism (total energy expenditure, TEE; sleeping energy expenditure, SEE; macronutrient oxidation) and subjective appetite were measured. RESULTS Compared to ISO, ketone levels were considerably higher with FAST and KETO and little higher with EXO (all p > 0.05). Total and sleeping energy expenditure did not differ between ISO, FAST and EXO whereas KETO increased TEE (+110 ± 54 kcal/d vs. ISO, p < 0.05) and SEE (+201 ± 90 kcal/d vs. ISO, p < 0.05). CHO oxidation was slightly decreased with EXO compared to ISO (-48 ± 27 g/d, p < 0.05) resulting in a positive CHO balance (p < 0.05). No differences between the interventions were found for subjective appetite ratings (all p > 0.05). CONCLUSION A 24 h-ketogenic diet may contribute to maintain a neutral energy balance by increasing energy expenditure. Exogenous ketones in addition to an isocaloric diet did not improve regulation of energy balance. CLINICAL TRIAL REGISTRATION NCT04490226 https://clinicaltrials.gov/.
Collapse
Affiliation(s)
- Franziska A Hägele
- Department of Human Nutrition, Institute of Human Nutrition and Food Sciences, Kiel University, Düsternbrooker Weg 17, 24105 Kiel, Germany
| | - Rebecca Dörner
- Department of Human Nutrition, Institute of Human Nutrition and Food Sciences, Kiel University, Düsternbrooker Weg 17, 24105 Kiel, Germany
| | - Jana Koop
- Department of Human Nutrition, Institute of Human Nutrition and Food Sciences, Kiel University, Düsternbrooker Weg 17, 24105 Kiel, Germany
| | - Marie Lübken
- Department of Human Nutrition, Institute of Human Nutrition and Food Sciences, Kiel University, Düsternbrooker Weg 17, 24105 Kiel, Germany
| | - Ulrike Seidel
- Department of Food Sciences, Institute of Human Nutrition and Food Sciences, Kiel University, Hermann-Rodewald-Strasse 6, 24098 Kiel, Germany
| | - Gerald Rimbach
- Department of Food Sciences, Institute of Human Nutrition and Food Sciences, Kiel University, Hermann-Rodewald-Strasse 6, 24098 Kiel, Germany
| | - Manfred J Müller
- Department of Human Nutrition, Institute of Human Nutrition and Food Sciences, Kiel University, Düsternbrooker Weg 17, 24105 Kiel, Germany
| | - Anja Bosy-Westphal
- Department of Human Nutrition, Institute of Human Nutrition and Food Sciences, Kiel University, Düsternbrooker Weg 17, 24105 Kiel, Germany.
| |
Collapse
|
10
|
Yepes-Calderón M, Kremer D, Post A, Sotomayor CG, Seidel U, Huebbe P, Knobbe TJ, Lüersen K, Eisenga MF, Corpeleijn E, de Borst MH, Navis GJ, Rimbach G, Bakker SJ. Urinary Copper Excretion Is Associated with Long-Term Graft Failure in Kidney Transplant Recipients. Am J Nephrol 2023; 54:425-433. [PMID: 37231776 PMCID: PMC10687917 DOI: 10.1159/000531147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2023] [Accepted: 04/27/2023] [Indexed: 05/27/2023]
Abstract
INTRODUCTION In chronic kidney disease, proteinuria increases urinary copper excretion, inducing oxidative tubular damage and worsening kidney function. We investigated whether this phenomenon occurred in kidney transplant recipients (KTRs). In addition, we studied the associations of urinary copper excretion with the biomarker of oxidative tubular damage urinary liver-type fatty-acid binding protein (u-LFABP) and death-censored graft failure. METHODS This prospective cohort study was performed in the Netherlands between 2008 and 2017, including outpatient KTR with a functioning graft for longer than 1 year, who were extensively phenotyped at baseline. Twenty-four-hour urinary copper excretion was measured by inductively coupled plasma mass spectrometry. Multivariable linear and Cox regression analyses were performed. RESULTS In 693 KTR (57% men, 53 ± 13 years, estimated glomerular filtration rate [eGFR] 52 ± 20 mL/min/1.73 m2), baseline median urinary copper excretion was 23.6 (interquartile range 11.3-15.9) µg/24 h. Urinary protein excretion was positively associated with urinary copper excretion (standardized β = 0.39, p < 0.001), and urinary copper excretion was positively associated with u-LFABP (standardized β = 0.29, p < 0.001). During a median follow-up of 8 years, 109 (16%) KTR developed graft failure. KTR with relatively high copper excretion were at higher risk of long-term graft failure (hazard ratio [HR]: 1.57, 95% confidence interval [CI]: 1.32-1.86 per log2, p < 0.001), independent of multiple potential confounders like eGFR, urinary protein excretion, and time after transplantation. A dose-response relationship was observed over increasing tertiles of copper excretion (HR: 5.03, 95% CI: 2.75-9.19, tertile 3 vs. 1, p < 0.001). u-LFABP was a significant mediator of this association (74% of indirect effect, p < 0.001). CONCLUSION In KTR, urinary protein excretion is positively correlated with urinary copper excretion. In turn, higher urinary copper excretion is associated with an independent increased risk of kidney graft failure, with a substantial mediating effect through oxidative tubular damage. Further studies are warranted to investigate whether copper excretion-targeted interventions could improve kidney graft survival.
Collapse
Affiliation(s)
- Manuela Yepes-Calderón
- Division of Nephrology, Department of Internal Medicine, University Medical Center Groningen, Groningen, The Netherlands
| | - Daan Kremer
- Division of Nephrology, Department of Internal Medicine, University Medical Center Groningen, Groningen, The Netherlands
| | - Adrian Post
- Division of Nephrology, Department of Internal Medicine, University Medical Center Groningen, Groningen, The Netherlands
| | - Camilo G. Sotomayor
- Division of Nephrology, Department of Internal Medicine, University Medical Center Groningen, Groningen, The Netherlands
- Clinical Hospital University of Chile, Independencia, Chile
| | - Ulrike Seidel
- Institute of Human Nutrition and Food Science, University of Kiel, Kiel, Germany
| | - Patricia Huebbe
- Institute of Human Nutrition and Food Science, University of Kiel, Kiel, Germany
| | - Tim J. Knobbe
- Division of Nephrology, Department of Internal Medicine, University Medical Center Groningen, Groningen, The Netherlands
| | - Kai Lüersen
- Institute of Human Nutrition and Food Science, University of Kiel, Kiel, Germany
| | - Michele F. Eisenga
- Division of Nephrology, Department of Internal Medicine, University Medical Center Groningen, Groningen, The Netherlands
| | - Eva Corpeleijn
- Department of Epidemiology, University Medical Center Groningen, Groningen, The Netherlands
| | - Martin H. de Borst
- Division of Nephrology, Department of Internal Medicine, University Medical Center Groningen, Groningen, The Netherlands
| | - Gerjan J. Navis
- Division of Nephrology, Department of Internal Medicine, University Medical Center Groningen, Groningen, The Netherlands
| | - Gerald Rimbach
- Institute of Human Nutrition and Food Science, University of Kiel, Kiel, Germany
| | - Stephan J.L. Bakker
- Division of Nephrology, Department of Internal Medicine, University Medical Center Groningen, Groningen, The Netherlands
| |
Collapse
|
11
|
Övermöhle C, Waniek S, Rimbach G, Weber KS, Lieb W. Plasma Ferritin Concentrations in the General Population: A Cross-Sectional Analysis of Anthropometric, Metabolic, and Dietary Correlates. J Nutr 2023; 153:1524-1533. [PMID: 36906150 DOI: 10.1016/j.tjnut.2023.03.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Revised: 02/28/2023] [Accepted: 03/07/2023] [Indexed: 03/11/2023] Open
Abstract
BACKGROUND Elevated concentrations of ferritin seem to be detrimental to human health while being quite common in the elderly. Data on dietary, anthropometric, and metabolic correlates of circulating ferritin levels in the elderly are scant. OBJECTIVES We aimed to identify a dietary pattern, anthropometric, and metabolic traits associated with plasma ferritin status in an elderly cohort (n = 460, 57% male, age: 66 ± 12 y) from Northern Germany. METHODS Plasma ferritin levels were measured by immunoturbidimetry. Reduced rank regression (RRR) yielded a dietary pattern explaining 13% of the variation in circulating ferritin concentrations. Cross-sectional associations of anthropometric and metabolic traits with plasma ferritin concentrations were assessed using multivariable-adjusted linear regression analysis. Restricted cubic spline regression was used to identify nonlinear associations. RESULTS The RRR pattern was characterized by a high intake of potatoes, certain vegetables, beef, pork, processed meat, fats (frying and animal fat), and beer and a low intake of snacks, representing elements of the traditional German diet. BMI, waist circumference, and CRP were directly, HDL cholesterol inversely, and age nonlinearly associated with plasma ferritin concentrations (all P < 0.05). After additional adjustment for CRP, only the association of ferritin with age remained statistically significant. CONCLUSION Higher plasma ferritin concentrations were associated with a traditional German dietary pattern. The associations of ferritin with unfavorable anthropometric traits and low HDL cholesterol were rendered statistically nonsignificant upon additional adjustment for chronic systemic inflammation (CRP), suggesting that these associations were largely driven by the proinflammatory role of ferritin (an acute-phase reactant). J Nutr 20xx;x:xx.
Collapse
Affiliation(s)
- Cara Övermöhle
- Institute of Epidemiology, Kiel University, Kiel, Germany
| | - Sabina Waniek
- Institute of Epidemiology, Kiel University, Kiel, Germany
| | - Gerald Rimbach
- Institute of Human Nutrition and Food Science, Kiel University, Kiel, Germany
| | | | - Wolfgang Lieb
- Institute of Epidemiology, Kiel University, Kiel, Germany
| |
Collapse
|
12
|
YEPES-CALDERÓN M, Kremer D, Post A, Seidel U, Huebbe P, Knobbe T, Lüersen K, Eisenga M, Corpeleijn E, de Borst M, Navis G, Rimbach G, Bakker S. WCN23-0124 PLASMA COPPER CONCENTRATION IS ASSOCIATED WITH CARDIOVASCULAR MORTALITY IN MALE KIDNEY TRANSPLANT RECIPIENTS. Kidney Int Rep 2023. [DOI: 10.1016/j.ekir.2023.02.855] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/22/2023] Open
|
13
|
Yepes-Calderón M, Kremer D, Post A, Sotomayor CG, Seidel U, Huebbe P, Knobbe TJ, Lüersen K, Eisenga MF, Corpeleijn E, De Borst MH, Navis GJ, Rimbach G, Bakker SJL. Plasma Copper Concentration Is Associated with Cardiovascular Mortality in Male Kidney Transplant Recipients. Antioxidants (Basel) 2023; 12:antiox12020454. [PMID: 36830012 PMCID: PMC9952822 DOI: 10.3390/antiox12020454] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Revised: 02/02/2023] [Accepted: 02/07/2023] [Indexed: 02/15/2023] Open
Abstract
Kidney transplant recipients (KTR) are at increased risk of cardiovascular mortality. We investigated whether, in KTR, post-transplantation copper status is associated with the risk of cardiovascular mortality and potential effect modification by sex. In this cohort study, plasma copper was measured using mass spectrometry in extensively-phenotyped KTR with a functioning allograft >1-year. Cox regression analyses with the inclusion of multiplicative interaction terms were performed. In 660 KTR (53 ± 13 years old, 56% male), the median baseline plasma copper was 15.42 (IQR 13.53-17.63) µmol/L. During a median follow-up of 5 years, 141 KTR died, 53 (38%) due to cardiovascular causes. Higher plasma copper was associated with an increased risk of cardiovascular mortality in the overall KTR population (HR 1.37; 95% CI, 1.07-1.77 per 1-SD, p = 0.01). Sex was a significant effect modifier of this association (Pinteraction = 0.01). Among male KTR, higher plasma copper concentration was independently associated with a two-fold higher risk of cardiovascular mortality (HR 2.09; 95% CI, 1.42-3.07 per 1-SD, p < 0.001). Among female KTR, this association was absent. This evidence offers a rationale for considering a sex-specific assessment of copper's role in cardiovascular risk evaluation. Further studies are warranted to elucidate whether copper-targeted interventions may decrease cardiovascular mortality in male KTR.
Collapse
Affiliation(s)
- Manuela Yepes-Calderón
- Department of Internal Medicine, Division of Nephrology, University Medical Center Groningen, 9713 GZ Groningen, The Netherlands
- Correspondence: ; Tel.: +31-061-6654-888
| | - Daan Kremer
- Department of Internal Medicine, Division of Nephrology, University Medical Center Groningen, 9713 GZ Groningen, The Netherlands
| | - Adrian Post
- Department of Internal Medicine, Division of Nephrology, University Medical Center Groningen, 9713 GZ Groningen, The Netherlands
| | - Camilo G. Sotomayor
- Department of Internal Medicine, Division of Nephrology, University Medical Center Groningen, 9713 GZ Groningen, The Netherlands
- Clinical Hospital University of Chile, University of Chile, Independencia 8380453, Chile
| | - Ulrike Seidel
- Institute of Human Nutrition and Food Science, University of Kiel, 24118 Kiel, Germany
| | - Patricia Huebbe
- Institute of Human Nutrition and Food Science, University of Kiel, 24118 Kiel, Germany
| | - Tim J. Knobbe
- Department of Internal Medicine, Division of Nephrology, University Medical Center Groningen, 9713 GZ Groningen, The Netherlands
| | - Kai Lüersen
- Institute of Human Nutrition and Food Science, University of Kiel, 24118 Kiel, Germany
| | - Michele F. Eisenga
- Department of Internal Medicine, Division of Nephrology, University Medical Center Groningen, 9713 GZ Groningen, The Netherlands
| | - Eva Corpeleijn
- Department of Epidemiology, University Medical Center Groningen, 9713 GZ Groningen, The Netherlands
| | - Martin H. De Borst
- Department of Internal Medicine, Division of Nephrology, University Medical Center Groningen, 9713 GZ Groningen, The Netherlands
| | - Gerjan J. Navis
- Department of Internal Medicine, Division of Nephrology, University Medical Center Groningen, 9713 GZ Groningen, The Netherlands
| | - Gerald Rimbach
- Institute of Human Nutrition and Food Science, University of Kiel, 24118 Kiel, Germany
| | - Stephan J. L. Bakker
- Department of Internal Medicine, Division of Nephrology, University Medical Center Groningen, 9713 GZ Groningen, The Netherlands
| |
Collapse
|
14
|
Rueter J, Rimbach G, Treitz C, Schloesser A, Lüersen K, Tholey A, Huebbe P. The mitochondrial BCKD complex interacts with hepatic apolipoprotein E in cultured cells in vitro and mouse livers in vivo. Cell Mol Life Sci 2023; 80:59. [PMID: 36749362 PMCID: PMC9905200 DOI: 10.1007/s00018-023-04706-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Revised: 12/22/2022] [Accepted: 01/23/2023] [Indexed: 02/08/2023]
Abstract
BACKGROUND AND AIMS Apolipoprotein E (APOE) is known for its role in lipid metabolism and its association with age-related disease pathology. The aim of the present work was to identify previously unknown functions of APOE based on the detection of novel APOE protein-protein interaction candidates. APPROACH AND RESULTS APOE targeted replacement mice and transfected cultured hepatocytes expressing the human isoforms APOE3 and APOE4 were used. For 7 months, APOE3 and APOE4 mice were fed a high-fat and high-sugar diet to induce obesity, while a subgroup was subjected to 30% dietary restriction. Proteomic analysis of coimmunoprecipitation products from APOE mouse liver extracts revealed 28 APOE-interacting candidate proteins, including branched-chain alpha-keto acid dehydrogenase (BCKD) complex subunit alpha (BCKDHA) and voltage-dependent anion-selective channel 1 (VDAC1). The binding of APOE and BCKDHA was verified in situ by proximity ligation assay in cultured cells. The activity of the BCKD enzyme complex was significantly higher in obese APOE4 mice than in APOE3 mice, while the plasma levels of branched-chain amino acids and mTOR signalling proteins were not different. However, the protein-protein interaction with VDAC1 was strongly induced in APOE3 and APOE4 mice upon dietary restriction, suggesting a prominent role of APOE in mitochondrial function. CONCLUSIONS The protein-protein interactions of APOE with BCKDHA and VDAC1 appear to be of physiological relevance and are modulated upon dietary restriction. Because these are mitochondrial proteins, it may be suggested that APOE is involved in mitochondria-related processes and adaptation to hepatic energy demands.
Collapse
Affiliation(s)
- Johanna Rueter
- Institute of Human Nutrition and Food Science, University of Kiel, Hermann-Rodewald-Strasse 6, 24118, Kiel, Germany
| | - Gerald Rimbach
- Institute of Human Nutrition and Food Science, University of Kiel, Hermann-Rodewald-Strasse 6, 24118, Kiel, Germany.
| | - Christian Treitz
- Institute of Experimental Medicine, University of Kiel, Niemannsweg 11, 24105, Kiel, Germany
| | - Anke Schloesser
- Institute of Human Nutrition and Food Science, University of Kiel, Hermann-Rodewald-Strasse 6, 24118, Kiel, Germany
| | - Kai Lüersen
- Institute of Human Nutrition and Food Science, University of Kiel, Hermann-Rodewald-Strasse 6, 24118, Kiel, Germany
| | - Andreas Tholey
- Institute of Experimental Medicine, University of Kiel, Niemannsweg 11, 24105, Kiel, Germany
| | - Patricia Huebbe
- Institute of Human Nutrition and Food Science, University of Kiel, Hermann-Rodewald-Strasse 6, 24118, Kiel, Germany
| |
Collapse
|
15
|
Bauer I, Rimbach G, Nevermann S, Neuhauser C, Schwarzinger B, Schwarzinger C, Weghuber J, Luersen K. In-vitro antidiabetic activity of a Bistorta officinalis Delarbre root extract can not be confirmed in the in-vivo models hen's egg test and Drosophila melanogaster. J Physiol Pharmacol 2023; 74. [PMID: 37245231 DOI: 10.26402/jpp.2023.10.04] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Accepted: 02/28/2023] [Indexed: 05/30/2023]
Abstract
The potential of plant bioactives for the prevention and therapy of diabetes is increasingly being recognized. In the present study we investigated the antidiabetic properties of an aqueous Bistorta officinalis Delarbre extract (BODE) by employing both in-vitro assays and in-vivo models. Multiple targets in glucose homeostasis which are involved in the regulation of the blood glucose level were affected by BODE in-vitro. The extract exhibited inhibitory activities towards the intestinal carbohydrate-hydrolysing enzymes α-amylase and α-glucosidase with IC50 values of 81.5 μg/mL and 8.4 μg/mL, respectively. Furthermore, moderate reduction of the dipeptidyl peptidase-4 (DPP4) enzyme activity was evident when tested in the presence of 1.0 mg/mL BODE. A significant inhibition of the intestinal glucose transporter sodium-dependent glucose transporter 1 (SGLT1) in response to 1.0 mg/mL BODE was shown for Caco-2 cells mounted in Ussing chambers. High performance liquid chromatography-mass spectrometry analyses of the BODE revealed several plant bioactives including gallotannins, catechins and chlorogenic acid. Although our in-vitro data were promising, BODE-supplementation in the model organism Drosophila melanogaster lacked to confirm the antidiabetic effect of the extract in-vivo. Moreover, BODE failed to reduce blood glucose levels in chicken embryos (in-ovo). Hence, BODE is probably not a suitable candidate for developing a pharmaceutical against diabetes mellitus.
Collapse
Affiliation(s)
- I Bauer
- Institute of Human Nutrition and Food Science, University of Kiel, Germany.
| | - G Rimbach
- Institute of Human Nutrition and Food Science, University of Kiel, Germany
| | - S Nevermann
- Institute of Human Nutrition and Food Science, University of Kiel, Germany
| | - C Neuhauser
- University of Applied Sciences Upper Austria, Wels, Austria
| | - B Schwarzinger
- University of Applied Sciences Upper Austria, Wels, Austria
- FFoQSI - Austrian Competence Centre for Feed and Food Quality, Safety and Innovation, Tulln, Austria
| | - C Schwarzinger
- Institute for Chemical Technology of Organic Materials, Johannes Kepler University, Linz, Austria
| | - J Weghuber
- University of Applied Sciences Upper Austria, Wels, Austria
- FFoQSI - Austrian Competence Centre for Feed and Food Quality, Safety and Innovation, Tulln, Austria
| | - K Luersen
- Institute of Human Nutrition and Food Science, University of Kiel, Germany
| |
Collapse
|
16
|
Bauer I, Rimbach G, Nevermann S, Neuhauser C, Schwarzinger B, Schwarzinger C, Weghuber J, Luersen K. In-vitro antidiabetic activity of a Bistorta officinalis Delarbre root extract can not be confirmed in the in-vivo models hen's egg test and Drosophila melanogaster. J Physiol Pharmacol 2023; 74. [PMID: 37245231 DOI: 10.26402/jpp.2023.1.04] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Accepted: 02/28/2023] [Indexed: 07/13/2023]
Abstract
The potential of plant bioactives for the prevention and therapy of diabetes is increasingly being recognized. In the present study we investigated the antidiabetic properties of an aqueous Bistorta officinalis Delarbre extract (BODE) by employing both in-vitro assays and in-vivo models. Multiple targets in glucose homeostasis which are involved in the regulation of the blood glucose level were affected by BODE in-vitro. The extract exhibited inhibitory activities towards the intestinal carbohydrate-hydrolysing enzymes α-amylase and α-glucosidase with IC50 values of 81.5 μg/mL and 8.4 μg/mL, respectively. Furthermore, moderate reduction of the dipeptidyl peptidase-4 (DPP4) enzyme activity was evident when tested in the presence of 1.0 mg/mL BODE. A significant inhibition of the intestinal glucose transporter sodium-dependent glucose transporter 1 (SGLT1) in response to 1.0 mg/mL BODE was shown for Caco-2 cells mounted in Ussing chambers. High performance liquid chromatography-mass spectrometry analyses of the BODE revealed several plant bioactives including gallotannins, catechins and chlorogenic acid. Although our in-vitro data were promising, BODE-supplementation in the model organism Drosophila melanogaster lacked to confirm the antidiabetic effect of the extract in-vivo. Moreover, BODE failed to reduce blood glucose levels in chicken embryos (in-ovo). Hence, BODE is probably not a suitable candidate for developing a pharmaceutical against diabetes mellitus.
Collapse
Affiliation(s)
- I Bauer
- Institute of Human Nutrition and Food Science, University of Kiel, Germany.
| | - G Rimbach
- Institute of Human Nutrition and Food Science, University of Kiel, Germany
| | - S Nevermann
- Institute of Human Nutrition and Food Science, University of Kiel, Germany
| | - C Neuhauser
- University of Applied Sciences Upper Austria, Wels, Austria
| | - B Schwarzinger
- University of Applied Sciences Upper Austria, Wels, Austria
- FFoQSI - Austrian Competence Centre for Feed and Food Quality, Safety and Innovation, Tulln, Austria
| | - C Schwarzinger
- Institute for Chemical Technology of Organic Materials, Johannes Kepler University, Linz, Austria
| | - J Weghuber
- University of Applied Sciences Upper Austria, Wels, Austria
- FFoQSI - Austrian Competence Centre for Feed and Food Quality, Safety and Innovation, Tulln, Austria
| | - K Luersen
- Institute of Human Nutrition and Food Science, University of Kiel, Germany
| |
Collapse
|
17
|
Post A, Kremer D, Groothof D, Seidel U, Huebbe P, Franssen CFM, Kema IP, Lüersen K, Rimbach G, Bakker SJL. Dietary lithium intake, graft failure and mortality in kidney transplant recipients. Nephrol Dial Transplant 2022:6958828. [PMID: 36564033 PMCID: PMC10387402 DOI: 10.1093/ndt/gfac340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
BACKGROUND & AIMS Long-term high dose lithium therapy in bipolar disorder is known to adversely affect kidney function. However, recent animal studies revealed that low amounts of lithium are beneficial for the kidney when it is damaged by exposure to nephrotoxic compounds, inflammation, or oxidative stress. This study aimed to investigate whether urinary lithium excretion, reflecting dietary lithium intake, is associated with adverse long-term kidney graft outcomes and patient survival. METHODS Urinary lithium concentration was measured using inductively coupled plasma-mass-spectrometry in 642 stable kidney transplant recipients. Graft failure was defined as start of dialysis or re-transplantation, and kidney function decline was defined as doubling of serum creatinine. RESULTS Median [interquartile range] urinary lithium excretion was 3.03 [2.31-4.01] μmol/24 h. Urinary lithium excretion was associated with energy, plant protein and water intake. During a median follow-up of 5.3 [4.5-6.0] years, 79 (12%) KTR developed graft failure and 127 (20%) KTR developed kidney function decline. Higher urinary lithium excretion was associated with lower risk of graft failure (hazard ratio [95% confidence interval]: 0.54 [0.38-0.79] per log2 μmol/24 h) and kidney function decline (HR [95% CI]: 0.73 [0.54-0.99] per log2 μmol/24 h). These associations remained independent of adjustment for potential confounders and in sensitivity analyses. There was significant effect modification by use of proliferation inhibitors (P = 0.05) and baseline eGFR (P < 0.001), with higher urinary lithium excretion being more protective in KTR not using proliferation inhibitors and in KTR with lower baseline eGFR. Furthermore, higher urinary lithium excretion was associated with reduced risk of all-cause mortality (HR [95% CI]: 0.64 [0.49-0.83]; P = 0.001). CONCLUSION Dietary lithium intake may be a potentially modifiable-yet rather overlooked-risk factor for adverse long-term kidney graft outcomes and patient survival.
Collapse
Affiliation(s)
- Adrian Post
- Department of Internal Medicine, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Daan Kremer
- Department of Internal Medicine, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Dion Groothof
- Department of Internal Medicine, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Ulrike Seidel
- Institute of Human Nutrition and Food Science, University of Kiel, Kiel, Germany
| | - Patricia Huebbe
- Institute of Human Nutrition and Food Science, University of Kiel, Kiel, Germany
| | - Casper F M Franssen
- Department of Internal Medicine, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Ido P Kema
- Department of Laboratory Medicine, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Kai Lüersen
- Institute of Human Nutrition and Food Science, University of Kiel, Kiel, Germany
| | - Gerald Rimbach
- Institute of Human Nutrition and Food Science, University of Kiel, Kiel, Germany
| | - Stephan J L Bakker
- Department of Internal Medicine, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands.,Prinicipal Investigator of the TransplantLines cohort studies
| |
Collapse
|
18
|
Schaffer S, Rimbach G, Pieper D, Hommen N, Fischer A, Birringer M, Seidel U. Minerals and Trace Elements in 990 Beverages and Their Contribution to Dietary Reference Values for German Consumers. Nutrients 2022; 14:nu14224899. [PMID: 36432585 PMCID: PMC9697264 DOI: 10.3390/nu14224899] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Revised: 11/10/2022] [Accepted: 11/17/2022] [Indexed: 11/22/2022] Open
Abstract
Beverages are an integral part of human nutrition, yet little is known about their contribution to daily intakes of minerals and trace elements in German consumers. Using inductively coupled plasma-mass spectrometry, we determined the concentration of five minerals and six trace elements in beverage samples (n = 990, assigned to different beverage groups) collected throughout Germany. For a calculation of their relative contribution to the mineral supply, available beverage consumption data was combined with our quantitative analysis to calculate the average contribution of beverage groups to meet the respective dietary reference values currently used in Germany, Austria and Switzerland (D-A-CH region). Based on their presence in beverages and their consumption, the top three minerals are phosphorous, calcium and magnesium, and they, therefore, may reasonably contribute to the reference values. Among the trace elements, beverages mostly contributed to the manganese supply, whereas at the same time, concentrations of iron, cobalt and copper were low across all tested groups. Our study provides an overview of the assumed mineral and trace element intake via beverages in Germany and may, thus, serve as a foundation for a mineral and trace element database of beverages that needs to be expanded in the future.
Collapse
Affiliation(s)
- Sebastian Schaffer
- Institute of Human Nutrition and Food Science, University of Kiel, 24118 Kiel, Germany
| | - Gerald Rimbach
- Institute of Human Nutrition and Food Science, University of Kiel, 24118 Kiel, Germany
| | - David Pieper
- Institute of Human Nutrition and Food Science, University of Kiel, 24118 Kiel, Germany
| | - Niklas Hommen
- Institute of Human Nutrition and Food Science, University of Kiel, 24118 Kiel, Germany
| | - Alexandra Fischer
- Institute of Human Nutrition and Food Science, University of Kiel, 24118 Kiel, Germany
| | - Marc Birringer
- Department of Nutritional, Food and Consumer Sciences, University of Applied Sciences Fulda, 36037 Fulda, Germany
| | - Ulrike Seidel
- Institute of Human Nutrition and Food Science, University of Kiel, 24118 Kiel, Germany
- Correspondence: ; Tel.: +49-431-880-5334
| |
Collapse
|
19
|
Rueter J, Rimbach G, Huebbe P. Functional diversity of apolipoprotein E: from subcellular localization to mitochondrial function. Cell Mol Life Sci 2022; 79:499. [PMID: 36018414 PMCID: PMC9418098 DOI: 10.1007/s00018-022-04516-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Revised: 07/27/2022] [Accepted: 08/07/2022] [Indexed: 11/26/2022]
Abstract
Human apolipoprotein E (APOE), originally known for its role in lipid metabolism, is polymorphic with three major allele forms, namely, APOEε2, APOEε3, and APOEε4, leading to three different human APOE isoforms. The ε4 allele is a genetic risk factor for Alzheimer's disease (AD); therefore, the vast majority of APOE research focuses on its role in AD pathology. However, there is increasing evidence for other functions of APOE through the involvement in other biological processes such as transcriptional regulation, mitochondrial metabolism, immune response, and responsiveness to dietary factors. Therefore, the aim of this review is to provide an overview of the potential novel functions of APOE and their characterization. The detection of APOE in various cell organelles points to previously unrecognized roles in mitochondria and others, although it is actually considered a secretory protein. Furthermore, numerous interactions of APOE with other proteins have been detected, providing indications for new metabolic pathways involving APOE. The present review summarizes the current evidence on APOE beyond its original role in lipid metabolism, to change the perspective and encourage novel approaches to future research on APOE and its isoform-dependent role in the cellular metabolism.
Collapse
Affiliation(s)
- Johanna Rueter
- Devision of Food Science, Institute of Human Nutrition and Food Science, University of Kiel, Hermann-Rodewald-Strasse 6, 24118, Kiel, Germany
| | - Gerald Rimbach
- Devision of Food Science, Institute of Human Nutrition and Food Science, University of Kiel, Hermann-Rodewald-Strasse 6, 24118, Kiel, Germany.
| | - Patricia Huebbe
- Devision of Food Science, Institute of Human Nutrition and Food Science, University of Kiel, Hermann-Rodewald-Strasse 6, 24118, Kiel, Germany
| |
Collapse
|
20
|
Tahanzadeh N, Knop M, Seidler Y, Dirndorfer S, Lürsen K, Bruchhaus I, Lang R, Rimbach G, Roeder T. An aqueous extract of the brown alga Eisenia bicyclis extends lifespan in a sex-specific manner by interfering with the Tor-FoxO axis. Aging (Albany NY) 2022; 14:6427-6448. [PMID: 35980274 PMCID: PMC9467403 DOI: 10.18632/aging.204218] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Accepted: 07/21/2022] [Indexed: 01/24/2023]
Abstract
Food has a decisive influence on our health, to the extent where even lifespan can be directly affected by it. In the present work, we have examined the effects of an aqueous extract of the marine brown alga Eisenia bicyclis in terms of its potential to extend lifespan. For this purpose, we used the fruit fly Drosophila melanogaster as a model. The experiments showed that small amounts of Eisenia extract can extend lifespan by up to 40%. This effect is not only related to the median but also to the maximum lifespan. Interestingly, this life-extending effect is sex-specific, i.e. it occurs exclusively in females. Even under stressful nutritional conditions such as a high sugar diet, this effect is detectable. Mechanistic studies showed that this life-prolonging effect depends on a functional Tor and a functional FoxO signaling pathway. It can be concluded that components of the Eisenia extract prolong lifespan by interacting with the Tor-FoxO axis. This study may serve to stimulate further investigations, which on the one hand show such a life-prolonging effect also in other organisms and on the other hand identify the substances responsible for this effect. Finally, it may also encourage the increased use of arame as a health-promoting food supplement.
Collapse
Affiliation(s)
- Navid Tahanzadeh
- Kiel University, Department Molecular Physiology, Zoology, Kiel, Germany
| | - Mirjam Knop
- Kiel University, Department Molecular Physiology, Zoology, Kiel, Germany
| | - Yvonne Seidler
- Kiel University, Institute of Human Nutrition and Food Science, Kiel, Germany
| | | | - Kai Lürsen
- Kiel University, Institute of Human Nutrition and Food Science, Kiel, Germany
| | - Iris Bruchhaus
- Bernhard-Nocht-Institute for Tropical Medicine, Department Parasitology, Hamburg, Germany
| | - Roman Lang
- Leibniz Institute for Food Systems Biology, TU Munich, Munich, Germany
| | - Gerald Rimbach
- Kiel University, Institute of Human Nutrition and Food Science, Kiel, Germany
| | - Thomas Roeder
- Kiel University, Department Molecular Physiology, Zoology, Kiel, Germany
- DZL, German Center for Lung Research, ARCN, Airway Research Center North, Kiel, Germany
| |
Collapse
|
21
|
Ollinger N, Neuhauser C, Schwarzinger B, Wallner M, Schwarzinger C, Blank-Landeshammer B, Hager R, Sadova N, Drotarova I, Mathmann K, Karamouzi E, Panopoulos P, Rimbach G, Lüersen K, Weghuber J, Röhrl C. Anti-Hyperglycemic Effects of Oils and Extracts Derived from Sea Buckthorn - A Comprehensive Analysis Utilizing In Vitro and In Vivo Models. Mol Nutr Food Res 2022; 66:e2101133. [PMID: 35426970 PMCID: PMC9285508 DOI: 10.1002/mnfr.202101133] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Revised: 03/14/2022] [Indexed: 12/15/2022]
Abstract
SCOPE Sea buckthorn (Hippophaes rhamnoides) is capable of ameliorating disturbed glucose metabolism in animal models and human subjects. Here, the effect of sea buckthorn oil as well as of extracts of fruits, leaves, and press cake on postprandial glucose metabolism is systematically investigated. METHODS AND RESULTS Sea buckthorn did neither exert decisive effects in an in vitro model of intestinal glucose absorption nor did it alter insulin secretion. However, sea buckthorn stimulates GLUT4 translocation to the plasma membrane comparable to insulin, indicative of increased glucose clearance from the circulation. Isorhamnetin is identified in all sea buckthorn samples investigated and is biologically active in triggering GLUT4 cell surface localization. Consistently, sea buckthorn products lower circulating glucose by ≈10% in a chick embryo model. Moreover, sea buckthorn products fully revert hyperglycemia in the nematode Caenorhabditis elegans while they are ineffective in Drosophila melanogaster under euglycemic conditions. CONCLUSION These data indicate that edible sea buckthorn products as well as by-products are promising resources for hypoglycemic nutrient supplements that increase cellular glucose clearance into target tissues.
Collapse
Affiliation(s)
- Nicole Ollinger
- FFoQSI - Austrian Competence Centre for Feed and Food Quality, Safety & Innovation, FFoQSI GmbH, Technopark 1D, Tulln, 3430, Austria
| | - Cathrina Neuhauser
- University of Applied Sciences Upper Austria, Stelzhamerstrasse 23, Wels, 4600, Austria
| | - Bettina Schwarzinger
- FFoQSI - Austrian Competence Centre for Feed and Food Quality, Safety & Innovation, FFoQSI GmbH, Technopark 1D, Tulln, 3430, Austria.,University of Applied Sciences Upper Austria, Stelzhamerstrasse 23, Wels, 4600, Austria
| | - Melanie Wallner
- FFoQSI - Austrian Competence Centre for Feed and Food Quality, Safety & Innovation, FFoQSI GmbH, Technopark 1D, Tulln, 3430, Austria
| | - Clemens Schwarzinger
- Johannes Kepler University, Institute for Chemical Technology of Organic Materials, Linz, 4040, Austria
| | - Bernhard Blank-Landeshammer
- FFoQSI - Austrian Competence Centre for Feed and Food Quality, Safety & Innovation, FFoQSI GmbH, Technopark 1D, Tulln, 3430, Austria
| | - Roland Hager
- University of Applied Sciences Upper Austria, Stelzhamerstrasse 23, Wels, 4600, Austria
| | - Nadiia Sadova
- University of Applied Sciences Upper Austria, Stelzhamerstrasse 23, Wels, 4600, Austria
| | - Ivana Drotarova
- University of Applied Sciences Upper Austria, Stelzhamerstrasse 23, Wels, 4600, Austria
| | - Katrin Mathmann
- University of Applied Sciences Upper Austria, Stelzhamerstrasse 23, Wels, 4600, Austria
| | - Eugenia Karamouzi
- European Research & Development Rezos Brands, 196 New National Road Patras-Athens, Patras, 26443, Greece
| | - Panagiotis Panopoulos
- European Research & Development Rezos Brands, 196 New National Road Patras-Athens, Patras, 26443, Greece
| | - Gerald Rimbach
- Institute of Human Nutrition and Food Science, University of Kiel, Hermann-Rodewald-Strasse 6, Kiel, 24118, Germany
| | - Kai Lüersen
- Institute of Human Nutrition and Food Science, University of Kiel, Hermann-Rodewald-Strasse 6, Kiel, 24118, Germany
| | - Julian Weghuber
- FFoQSI - Austrian Competence Centre for Feed and Food Quality, Safety & Innovation, FFoQSI GmbH, Technopark 1D, Tulln, 3430, Austria.,University of Applied Sciences Upper Austria, Stelzhamerstrasse 23, Wels, 4600, Austria
| | - Clemens Röhrl
- University of Applied Sciences Upper Austria, Stelzhamerstrasse 23, Wels, 4600, Austria
| |
Collapse
|
22
|
Günther I, Rimbach G, Nevermann S, Neuhauser C, Stadlbauer V, Schwarzinger B, Schwarzinger C, Ipharraguerre IR, Weghuber J, Lüersen K. Avens Root ( Geum Urbanum L.) Extract Discovered by Target-Based Screening Exhibits Antidiabetic Activity in the Hen's Egg Test Model and Drosophila melanogaster. Front Pharmacol 2022; 12:794404. [PMID: 34975489 PMCID: PMC8715001 DOI: 10.3389/fphar.2021.794404] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Accepted: 11/29/2021] [Indexed: 01/23/2023] Open
Abstract
Medicinal plant extracts are becoming increasingly important as an alternative for traditional drugs against diabetes mellitus (DM). For this reason, we initialized a target-based screening of 111 root extracts from an open access plant extract library (PECKISH) by ascertaining their in-vitro inhibitory efficacy on α-glucosidase. The two most active extracts Geum urbanum L. (roseroot) and Rhodiola rosea L. (avens root) were further tested for their antidiabetic activities in terms of their impact on different regulatory key points of glucose homeostasis. To this end, various enzyme- and cell culture-based in-vitro assays were employed including the determination of sodium-dependent glucose transporter 1 (SGLT1) activity in Caco-2 monolayers by Ussing chambers and of glucose transporter 4 (GLUT4) translocation in a GFP-reporter cell line. Subsequently, the antidiabetic potential of the root extracts were further evaluated in in-vivo models, namely hen’s eggs test and the fruit fly Drosophila melanogaster. Avens root extract was found to be a more potent inhibitor of the enzymes α-glucosidase and dipeptidyl peptidase-4 (DPP4) than roseroot extract. Most importantly, only avens root extract exhibited antidiabetic activity in the two in-vivo models eliciting a reduced blood glucose level in the in-ovo model and a decline of the triglyceride level in a dietary starch-induced D. melanogaster obesity model. Analyses of the polyphenolic composition of the avens root extract by HPLC revealed a high content of ellagic acid and its derivatives as well as ellagitannins such as pedunculagin, stenophyllanin, stachyurin, casuarinin and gemin A. In conclusion, avens root extract represents a promising medicinal plant that should be considered in further in-vivo studies on hyperglycemia in laboratory rodents and humans.
Collapse
Affiliation(s)
- Ilka Günther
- Institute of Human Nutrition and Food Science, University of Kiel, Kiel, Germany
| | - Gerald Rimbach
- Institute of Human Nutrition and Food Science, University of Kiel, Kiel, Germany
| | - Sandra Nevermann
- Institute of Human Nutrition and Food Science, University of Kiel, Kiel, Germany
| | - Cathrina Neuhauser
- School of Engineering, University of Applied Sciences Upper Austria, Wels, Austria
| | - Verena Stadlbauer
- School of Engineering, University of Applied Sciences Upper Austria, Wels, Austria.,FFoQSI - Austrian Competence Centre for Feed and Food Quality, Safety and Innovation, Tulln, Austria
| | - Bettina Schwarzinger
- School of Engineering, University of Applied Sciences Upper Austria, Wels, Austria
| | - Clemens Schwarzinger
- Institute for Chemical Technology of Organic Materials, Johannes Kepler University, Linz, Austria
| | | | - Julian Weghuber
- School of Engineering, University of Applied Sciences Upper Austria, Wels, Austria.,FFoQSI - Austrian Competence Centre for Feed and Food Quality, Safety and Innovation, Tulln, Austria
| | - Kai Lüersen
- Institute of Human Nutrition and Food Science, University of Kiel, Kiel, Germany
| |
Collapse
|
23
|
Fedde S, Rimbach G, Schwarz K, Bosy-Westphal A. [What is ultra-processed food and how is it related to diet-related diseases?]. Dtsch Med Wochenschr 2021; 147:46-52. [PMID: 34963174 DOI: 10.1055/a-1683-3983] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Ultra-processed food is part of a modern lifestyle and accounts for about 46 % of daily energy intake in Germany. Cross-sectional and cohort studies indicate associations between consumption of ultra-processed food and a range of non-communicable diseases (obesity, diabetes, cancer, cardiovascular disease, and depression). As underlying mechanisms, a high energy density, altered food matrix, an unbalanced nutritional composition, high glycemic index, adverse additives, processing- and packaging contaminants are discussed. In order to understand the role of these potential mechanisms and to provide a scientifically based and risk-associated definition of ultra-processed food it is important to conduct appropriate intervention studies and to improve dietary assessment of processed food in prospective cohort studies.
Collapse
Affiliation(s)
- Svenja Fedde
- Institut für Humanernährung und Lebensmittelkunde, Abteilung Humanernährung, Christian-Albrechts-Universität zu Kiel
| | - Gerald Rimbach
- Institut für Humanernährung und Lebensmittelkunde, Abteilung Lebensmittelwissenschaften, Christian-Albrechts-Universität zu Kiel
| | - Karin Schwarz
- Institut für Humanernährung und Lebensmittelkunde, Abteilung Lebensmitteltechnologie, Christian-Albrechts-Universität zu Kiel
| | - Anja Bosy-Westphal
- Institut für Humanernährung und Lebensmittelkunde, Abteilung Humanernährung, Christian-Albrechts-Universität zu Kiel
| |
Collapse
|
24
|
Kremer D, Post A, Seidel U, Huebbe P, van der Veen Y, Groothof D, Gomes-Neto AW, Knobbe TJ, Lüersen K, Eisenga MF, Navis GJ, Rimbach G, Bakker SJL. Boron Intake and decreased risk of mortality in kidney transplant recipients. Eur J Nutr 2021; 61:973-984. [PMID: 34677681 PMCID: PMC8854244 DOI: 10.1007/s00394-021-02702-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Accepted: 10/06/2021] [Indexed: 12/03/2022]
Abstract
Purpose In a search for potentially modifiable factors to improve long-term outcome among kidney transplant recipients (KTR), we hypothesized that boron exposure is associated with improved long-term outcome in KTR. Methods We determined 24 h urinary boron excretion using inductively coupled plasma mass spectrometry as a measure of boron exposure in 693 stable KTR (57% male, mean age 53y), enrolled in the TransplantLines Food and Nutrition Biobank and Cohort Study. Dietary intake was assessed using validated food-frequency questionnaires. Results Linear regression analyses showed that dietary intake of fruit, wine and nuts were key determinants of boron excretion. In addition, boron excretion was negatively correlated with homocysteine and inflammatory parameters. In total, 73 (32%), 47 (20%) and 30 (13%) KTR died among the lowest, middle and highest tertiles of 24 h urinary boron excretion, respectively (Plog-rank < 0.001). Cox regression analyses showed that high boron excretion was strongly associated with lower risk of mortality, independent of age, sex, estimated glomerular filtration rate and history of cardiovascular disease (HR per doubling: 0.51, 95% CI: 0.40 to 0.66, P < 0.001). Conclusion Boron may be an overlooked target to improve long-term survival among KTR and potentially other patients, likely through pathways other than inflammation or the methionine-homocysteine cycle that were previously suggested. Interventional trials are warranted to confirm the potential of dietary boron supplementation in KTR and other patient populations. Supplementary Information The online version contains supplementary material available at 10.1007/s00394-021-02702-0.
Collapse
Affiliation(s)
- Daan Kremer
- Department of Internal Medicine, Division of Nephrology, University Medical Center Groningen and University of Groningen, Post Box 30.001, 9700 RB, Groningen, The Netherlands.
| | - Adrian Post
- Department of Internal Medicine, Division of Nephrology, University Medical Center Groningen and University of Groningen, Post Box 30.001, 9700 RB, Groningen, The Netherlands
| | - Ulrike Seidel
- Institute of Human Nutrition and Food Science, University of Kiel, Kiel, Germany
| | - Patricia Huebbe
- Institute of Human Nutrition and Food Science, University of Kiel, Kiel, Germany
| | - Yvonne van der Veen
- Department of Internal Medicine, Division of Nephrology, University Medical Center Groningen and University of Groningen, Post Box 30.001, 9700 RB, Groningen, The Netherlands
| | - Dion Groothof
- Department of Internal Medicine, Division of Nephrology, University Medical Center Groningen and University of Groningen, Post Box 30.001, 9700 RB, Groningen, The Netherlands
| | - António W Gomes-Neto
- Department of Internal Medicine, Division of Nephrology, University Medical Center Groningen and University of Groningen, Post Box 30.001, 9700 RB, Groningen, The Netherlands
| | - Tim J Knobbe
- Department of Internal Medicine, Division of Nephrology, University Medical Center Groningen and University of Groningen, Post Box 30.001, 9700 RB, Groningen, The Netherlands
| | - Kai Lüersen
- Institute of Human Nutrition and Food Science, University of Kiel, Kiel, Germany
| | - Michele F Eisenga
- Department of Internal Medicine, Division of Nephrology, University Medical Center Groningen and University of Groningen, Post Box 30.001, 9700 RB, Groningen, The Netherlands
| | - Gerjan J Navis
- Department of Internal Medicine, Division of Nephrology, University Medical Center Groningen and University of Groningen, Post Box 30.001, 9700 RB, Groningen, The Netherlands
| | - Gerald Rimbach
- Institute of Human Nutrition and Food Science, University of Kiel, Kiel, Germany
| | - Stephan J L Bakker
- Department of Internal Medicine, Division of Nephrology, University Medical Center Groningen and University of Groningen, Post Box 30.001, 9700 RB, Groningen, The Netherlands
| | | |
Collapse
|
25
|
Secci R, Hartmann A, Walter M, Grabe HJ, Van der Auwera-Palitschka S, Kowald A, Palmer D, Rimbach G, Fuellen G, Barrantes I. Biomarkers of geroprotection and cardiovascular health: An overview of omics studies and established clinical biomarkers in the context of diet. Crit Rev Food Sci Nutr 2021; 63:2426-2446. [PMID: 34648415 DOI: 10.1080/10408398.2021.1975638] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The slowdown, inhibition, or reversal of age-related decline (as a composite of disease, dysfunction, and, ultimately, death) by diet or natural compounds can be defined as dietary geroprotection. While there is no single reliable biomarker to judge the effects of dietary geroprotection, biomarker signatures based on omics (epigenetics, gene expression, microbiome composition) are promising candidates. Recently, omic biomarkers started to supplement established clinical ones such as lipid profiles and inflammatory cytokines. In this review, we focus on human data. We first summarize the current take on genetic biomarkers based on epidemiological studies. However, most of the remaining biomarkers that we describe, whether omics-based or clinical, are related to intervention studies. Then, because of their promising potential in the context of dietary geroprotection, we focus on the effects of berry-based interventions, which up to now have been mostly described employing clinical markers. We provide an aggregation and tabulation of all the recent systematic reviews and meta-analyses that we could find related to this topic. Finally, we present evidence for the importance of the "nutribiography," that is, the influence that an individual's history of diet and natural compound consumption can have on the effects of dietary geroprotection.
Collapse
Affiliation(s)
- Riccardo Secci
- Junior Research Group Translational Bioinformatics, Institute for Biostatistics and Informatics in Medicine and Ageing Research, Rostock University Medical Center, Rostock, Germany
| | - Alexander Hartmann
- Institute for Clinical Chemistry and Laboratory Medicine, University Medical Center Rostock, University of Rostock, Rostock, Germany
| | - Michael Walter
- Institute for Clinical Chemistry and Laboratory Medicine, University Medical Center Rostock, University of Rostock, Rostock, Germany.,Institute of Laboratory Medicine, Clinical Chemistry, and Pathobiochemistry, Charite University Medical Center, Berlin, Germany
| | - Hans Jörgen Grabe
- Department of Psychiatry and Psychotherapy, University Medicine Greifswald, Greifswald, Germany.,German Centre for Neurodegenerative Diseases (DZNE), Site Rostock/Greifswald, Greifswald, Germany
| | - Sandra Van der Auwera-Palitschka
- Department of Psychiatry and Psychotherapy, University Medicine Greifswald, Greifswald, Germany.,German Centre for Neurodegenerative Diseases (DZNE), Site Rostock/Greifswald, Greifswald, Germany
| | - Axel Kowald
- Institute for Biostatistics and Informatics in Medicine and Aging Research, Rostock University Medical Center, Rostock, Germany
| | - Daniel Palmer
- Institute for Biostatistics and Informatics in Medicine and Aging Research, Rostock University Medical Center, Rostock, Germany
| | - Gerald Rimbach
- Institute of Human Nutrition and Food Science, University of Kiel, Kiel, Germany
| | - Georg Fuellen
- Institute for Biostatistics and Informatics in Medicine and Aging Research, Rostock University Medical Center, Rostock, Germany
| | - Israel Barrantes
- Junior Research Group Translational Bioinformatics, Institute for Biostatistics and Informatics in Medicine and Ageing Research, Rostock University Medical Center, Rostock, Germany
| |
Collapse
|
26
|
Seidel U, Haegele FA, Baumhof E, Jans K, Seidler Y, Kremer D, Bakker SJL, Birringer M, Lüersen K, Bosy-Westphal A, Rimbach G. Boron Contents of German Mineral and Medicinal Waters and Their Bioavailability in Drosophila melanogaster and Humans. Mol Nutr Food Res 2021; 65:e2100345. [PMID: 34061440 DOI: 10.1002/mnfr.202100345] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Revised: 05/17/2021] [Indexed: 11/08/2022]
Abstract
SCOPE Boron is a trace element that naturally occurs in soil, making mineral and medicinal water important contributors to overall intake. Thus, in a systematic screening, the mean boron concentrations of 381 German mineral and medicinal waters are determined. METHODS AND RESULTS Boron concentrations in mineral and medicinal waters are analyzed by inductively coupled mass spectrometry (ICP-MS). Highest boron values find in waters from the southwest of Germany. The boron content of the waters is positively correlated with the concentration of most other analyzed bulk elements, including calcium, potassium, magnesium, and sodium. Mineral waters with either low (7.9 µg L-1 ), medium (113.9 µg L-1 ), or high (2193.3 µg L-1 ) boron content are chosen for boron exposure experiments in fruit flies (Drosophila melanogaster) and humans. In flies, boron-rich mineral water significantly increases boron accumulation, with the accumulation predominantly occurring in the exoskeleton. In humans, serum boron and 24-h urinary boron excretion significantly increase only in response to the intake of boron-rich mineral water. CONCLUSION Overall, the current data demonstrate that mineral and medicinal waters vary substantially in the content of boron and that boron-rich mineral water can be used to elevate the boron status, both in flies and humans.
Collapse
Affiliation(s)
- Ulrike Seidel
- Institute of Human Nutrition and Food Science, University of Kiel, Kiel, Germany
| | - Franziska A Haegele
- Institute of Human Nutrition and Food Science, University of Kiel, Kiel, Germany
| | - Elena Baumhof
- Institute of Human Nutrition and Food Science, University of Kiel, Kiel, Germany
| | - Katharina Jans
- Institute of Human Nutrition and Food Science, University of Kiel, Kiel, Germany
| | - Yvonne Seidler
- Institute of Human Nutrition and Food Science, University of Kiel, Kiel, Germany
| | - Daan Kremer
- Department of Internal Medicine, University of Groningen, Groningen, the Netherlands
| | - Stephan J L Bakker
- Department of Internal Medicine, University of Groningen, Groningen, the Netherlands
| | - Marc Birringer
- Department of Nutritional Food and Consumer Sciences, Fulda University of Applied Sciences, Fulda, Germany
| | - Kai Lüersen
- Institute of Human Nutrition and Food Science, University of Kiel, Kiel, Germany
| | - Anja Bosy-Westphal
- Institute of Human Nutrition and Food Science, University of Kiel, Kiel, Germany
| | - Gerald Rimbach
- Institute of Human Nutrition and Food Science, University of Kiel, Kiel, Germany
| |
Collapse
|
27
|
Kaufman JD, Seidler Y, Bailey HR, Whitacre L, Bargo F, Lüersen K, Rimbach G, Pighetti GM, Ipharraguerre IR, Ríus AG. A postbiotic from Aspergillus oryzae attenuates the impact of heat stress in ectothermic and endothermic organisms. Sci Rep 2021; 11:6407. [PMID: 33742039 PMCID: PMC7979835 DOI: 10.1038/s41598-021-85707-3] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Accepted: 02/28/2021] [Indexed: 01/17/2023] Open
Abstract
Heat stress is detrimental to food-producing animals and animal productivity remains suboptimal despite the use of heat abatement strategies during summer. Global warming and the increase of frequency and intensity of heatwaves are likely to continue and, thus, exacerbate the problem of heat stress. Heat stress leads to the impairment of physiological and cellular functions of ectothermic and endothermic animals. Therefore, it is critical to conceive ways of protecting animals against the pathological effects of heat stress. In experiments with endothermic animals highly sensitive to heat (Bos taurus), we have previously reported that heat-induced systemic inflammation can be ameliorated in part by nutritional interventions. The experiments conducted in this report described molecular and physiological adaptations to heat stress using Drosophila melanogaster and dairy cow models. In this report, we expand previous work by first demonstrating that the addition of a postbiotic from Aspergillus oryzae (AO) into the culture medium of ectothermic animals (Drosophila melanogaster) improved survival to heat stress from 30 to 58%. This response was associated with downregulation of genes involved in the modulation of oxidative stress and immunity, most notably metallothionein B, C, and D. In line with these results, we subsequently showed that the supplementation with the AO postbiotic to lactating dairy cows experiencing heat stress decreased plasma concentrations of serum amyloid A and lipopolysaccharide-binding protein, and the expression of interleukin-6 in white blood cells. These alterations were paralleled by increased synthesis of energy-corrected milk and milk components, suggesting enhanced nutrient partitioning to lactogenesis and increased metabolic efficiency. In summary, this work provides evidence that a postbiotic from AO enhances thermal tolerance likely through a mechanism that entails reduced inflammation.
Collapse
Affiliation(s)
- J D Kaufman
- Department of Animal Science, University of Tennessee, 2506 River Drive, 235 Brehm Animal Science Building, Knoxville, TN, 37996, USA
| | - Y Seidler
- Institute of Human Nutrition and Food Science, University of Kiel, Kiel, Germany
| | - H R Bailey
- Department of Animal Science, University of Tennessee, 2506 River Drive, 235 Brehm Animal Science Building, Knoxville, TN, 37996, USA
| | - L Whitacre
- BioZyme, Inc., St. Joseph, MO, 64504, USA
| | - F Bargo
- Facultad de Agronomía, Universidad de Buenos Aires, Buenos Aires, Argentina
- BioZyme, Inc., St. Joseph, MO, 64504, USA
| | - K Lüersen
- Institute of Human Nutrition and Food Science, University of Kiel, Kiel, Germany
| | - G Rimbach
- Institute of Human Nutrition and Food Science, University of Kiel, Kiel, Germany
| | - G M Pighetti
- Department of Animal Science, University of Tennessee, 2506 River Drive, 235 Brehm Animal Science Building, Knoxville, TN, 37996, USA
| | - I R Ipharraguerre
- Institute of Human Nutrition and Food Science, University of Kiel, Kiel, Germany
| | - A G Ríus
- Department of Animal Science, University of Tennessee, 2506 River Drive, 235 Brehm Animal Science Building, Knoxville, TN, 37996, USA.
| |
Collapse
|
28
|
Wüpper S, Lüersen K, Rimbach G. Cyclodextrins, Natural Compounds, and Plant Bioactives-A Nutritional Perspective. Biomolecules 2021; 11:biom11030401. [PMID: 33803150 PMCID: PMC7998733 DOI: 10.3390/biom11030401] [Citation(s) in RCA: 49] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Revised: 03/03/2021] [Accepted: 03/04/2021] [Indexed: 02/08/2023] Open
Abstract
Cyclodextrins (CDs) are a group of cyclic oligosaccharides produced from starch or starch derivatives. They contain six (αCD), seven (βCD), eight (γCD), or more glucopyranose monomers linked via α-1,4-glycosidic bonds. CDs have a truncated cone shape with a hydrophilic outer wall and a less hydrophilic inner wall, the latter forming a more apolar internal cavity. Because of this special architecture, CDs are soluble in water and can simultaneously host lipophilic guest molecules. The major advantage of inclusion into CDs is increased aqueous solubility of such lipophilic substances. Accordingly, we present studies where the complexation of natural compounds such as propolis and dietary plant bioactives (e.g., tocotrienol, pentacyclic triterpenoids, curcumin) with γCD resulted in improved stability, bioavailability, and bioactivity in various laboratory model organisms and in humans. We also address safety aspects that may arise from increased bioavailability of plant extracts or natural compounds owing to CD complexation. When orally administered, α- and βCD—which are inert to intestinal digestion—are fermented by the human intestinal flora, while γCD is almost completely degraded to glucose units by α-amylase. Hence, recent reports indicate that empty γCD supplementation exhibits metabolic activity on its own, which may provide opportunities for new applications.
Collapse
|
29
|
Pallauf K, Günther I, Kühn G, Chin D, de Pascual-Teresa S, Rimbach G. The Potential of Resveratrol to Act as a Caloric Restriction Mimetic Appears to Be Limited: Insights from Studies in Mice. Adv Nutr 2020; 12:995-1005. [PMID: 33271594 PMCID: PMC8166566 DOI: 10.1093/advances/nmaa148] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2020] [Revised: 07/13/2020] [Accepted: 10/21/2020] [Indexed: 12/14/2022] Open
Abstract
Caloric restriction (CR) has been shown repeatedly to prolong the lifespan in laboratory animals, with its benefits dependent on molecular targets forming part of the nutrient signaling network, including the NAD-dependent deacetylase silent mating type information regulation 2 homologue 1 (SIRT1). It has been hypothesized that the stilbene resveratrol (RSV) may counteract age- and obesity-related diseases similarly to CR. In yeast and worms, RSV-promoted longevity also depended on SIRT1. While it remains unclear whether RSV can prolong lifespans in mammals, some studies in rodents supplemented with RSV have reported lowered body weight (BW) and fat mass, improved insulin sensitivity, lowered cholesterol levels, increased fitness, and mitochondrial biogenesis. Molecular mechanisms possibly leading to such changes include altered gene transcription and activation of SIRT1, AMP-activated kinase (AMPK), and peroxisome proliferator-activated receptor gamma coactivator 1-alpha (PPARGC1A). However, some mouse models did not benefit from RSV treatment to the same extent as others. We conducted a literature search on PubMed (15 April, 2020) for trials directly comparing RSV application to CR feeding in mice. In most studies retrieved by this systematic PubMed search, mice supplemented with RSV did not show significant reductions of BW, glucose, or insulin. Moreover, in some of these studies, RSV and CR treatments affected molecular targets differently and/or findings on RSV and CR impacts varied between trials. We discuss those RSV-induced changes in gene transcription hypothesized to partly counteract age-related alterations. Although there may be a moderate effect of RSV supplementation on parameters such as insulin sensitivity toward a more CR-like profile in mice, data are inconsistent. Likewise, RSV supplementation trials in humans report controversial findings. While we consider that RSV may, under certain circumstances, moderately mimic some aspects of CR, current evidence does not fully support its use to prevent or treat age- or obesity-related diseases.
Collapse
Affiliation(s)
| | - Ilka Günther
- Institute of Human Nutrition and Food Science, University of Kiel, Kiel, Germany
| | - Gianna Kühn
- Institute of Human Nutrition and Food Science, University of Kiel, Kiel, Germany
| | - Dawn Chin
- Institute of Human Nutrition and Food Science, University of Kiel, Kiel, Germany
| | - Sonia de Pascual-Teresa
- Department of Metabolism and Nutrition, Institute of Food Science, Technology and Nutrition (ICTAN-CSIC), Madrid, Spain
| | - Gerald Rimbach
- Institute of Human Nutrition and Food Science, University of Kiel, Kiel, Germany
| |
Collapse
|
30
|
Aeschimann W, Kammer S, Staats S, Schneider P, Schneider G, Rimbach G, Cascella M, Stocker A. Engineering of a functional γ-tocopherol transfer protein. Redox Biol 2020; 38:101773. [PMID: 33197771 PMCID: PMC7677715 DOI: 10.1016/j.redox.2020.101773] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Revised: 10/22/2020] [Accepted: 10/27/2020] [Indexed: 11/28/2022] Open
Abstract
α-tocopherol transfer protein (TTP) was previously reported to self-aggregate into 24-meric spheres (α-TTPS) and to possess transcytotic potency across mono-layers of human umbilical vein endothelial cells (HUVECs). In this work, we describe the characterisation of a functional TTP variant with its vitamer selectivity shifted towards γ-tocopherol. The shift was obtained by introducing an alanine to leucine substitution into the substrate-binding pocket at position 156 through site directed mutagenesis. We report here the X-ray crystal structure of the γ-tocopherol specific particle (γ-TTPS) at 2.24 Å resolution. γ-TTPS features full functionality compared to its α-tocopherol specific parent including self-aggregation potency and transcytotic activity in trans-well experiments using primary HUVEC cells. The impact of the A156L mutation on TTP function is quantified in vitro by measuring the affinity towards γ-tocopherol through micro-differential scanning calorimetry and by determining its ligand-transfer activity. Finally, cell culture experiments using adherently grown HUVEC cells indicate that the protomers of γ-TTP, in contrast to α-TTP, do not counteract cytokine-mediated inflammation at a transcriptional level. Our results suggest that the A156L substitution in TTP is fully functional and has the potential to pave the way for further experiments towards the understanding of α-tocopherol homeostasis in humans.
Collapse
Affiliation(s)
- Walter Aeschimann
- University of Bern, Department of Chemistry and Biochemistry, Bern, 3012, Switzerland
| | - Stephan Kammer
- University of Bern, Department of Chemistry and Biochemistry, Bern, 3012, Switzerland
| | - Stefanie Staats
- University of Kiel, Institute of Human Nutrition and Food Science, Kiel, 24118, Germany
| | - Petra Schneider
- Institute of Pharmaceutical Sciences, ETH Zürich, Vladimir-Prelog-Weg 4, 8093, Zürich, Switzerland
| | - Gisbert Schneider
- Institute of Pharmaceutical Sciences, ETH Zürich, Vladimir-Prelog-Weg 4, 8093, Zürich, Switzerland
| | - Gerald Rimbach
- University of Kiel, Institute of Human Nutrition and Food Science, Kiel, 24118, Germany
| | - Michele Cascella
- University of Oslo, Department of Chemistry and Hylleraas Centre for Quantum Molecular Sciences, PO Box 1033 Blindern, 0315, Oslo, Norway
| | - Achim Stocker
- University of Bern, Department of Chemistry and Biochemistry, Bern, 3012, Switzerland.
| |
Collapse
|
31
|
Wupper S, Fischer A, Luersen K, Ipharraguerre IR, Chikamoto K, Furune T, Ishida Y, Terao K, Rimbach G. Effects of dietary gamma-cyclodextrin on voluntary activity and muscle strength in mice. J Physiol Pharmacol 2020; 71. [PMID: 32991317 DOI: 10.26402/jpp.2020.3.08] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Accepted: 06/30/2020] [Indexed: 11/03/2022]
Abstract
Gamma-cyclodextrin (γCD) is a cyclic oligosaccharide consisting of eight α-(1,4)-linked glucopyranose subunits, which is often used in the food and pharmaceutical industries. However, little is known regarding the metabolic activity of "empty" γCD per se. Therefore, in the present study young C57BL/6 male mice received a control diet (CON) or an experimental diet that was supplemented with 12.88% γCD exchanged against corn starch. After 6 weeks of treatment, the voluntary wheel running activity was monitored and the muscle strength of mice was measured by employing Kondziela's inverted screen test and forelimb grip strength assay. The γCD-treated mice covered a significantly larger distance per night (CON 8.6 km, γCD 12.4 km) and were significantly longer active (CON 340 min, γCD 437 min). Moreover, γCD-treated mice significantly performed better at the inverted screen test indicated by an enhanced Kondziela score (CON 3.10, γCD 4.63). These data suggest that dietary γCD leads to an increased endurance. We also found a slightly anti-glycemic effect of γCD during oral glucose tolerance test. However, our mice from the γCD group exhibited no difference in terms of GLUT2 protein level in ileum tissue nor increased muscle glycogen storage. Furthermore, γCD exhibited no DPP-4 inhibitory activity in vitro. By analysing candidate muscle genes and proteins related to endurance and muscle performance we did not observe any differences in terms of Sirt1, Pgc1α, Cpt1b, Mef2c, Myh1 and Myh2 gene expression levels as well as total oxidative phosphorylation (OXPHOS), mtTFA and GLUT4 protein expression levels in skeletal muscle in response to γCD. We could not fully establish the exact underlying molecular mechanisms of the fitness improvement by dietary γCD which warrants further investigations.
Collapse
Affiliation(s)
- S Wupper
- Institute of Human Nutrition and Food Science, University of Kiel, Kiel, Germany.
| | - A Fischer
- Institute of Human Nutrition and Food Science, University of Kiel, Kiel, Germany
| | - K Luersen
- Institute of Human Nutrition and Food Science, University of Kiel, Kiel, Germany
| | - I R Ipharraguerre
- Institute of Human Nutrition and Food Science, University of Kiel, Kiel, Germany
| | - K Chikamoto
- CycloChem Bio Co., Ltd., 7-4-5 Minatojima-minamimachi, Chuo-ku, Kobe, Japan
| | - T Furune
- CycloChem Bio Co., Ltd., 7-4-5 Minatojima-minamimachi, Chuo-ku, Kobe, Japan
| | - Y Ishida
- CycloChem Bio Co., Ltd., 7-4-5 Minatojima-minamimachi, Chuo-ku, Kobe, Japan
| | - K Terao
- CycloChem Bio Co., Ltd., 7-4-5 Minatojima-minamimachi, Chuo-ku, Kobe, Japan
| | - G Rimbach
- Institute of Human Nutrition and Food Science, University of Kiel, Kiel, Germany
| |
Collapse
|
32
|
Wüpper S, Lüersen K, Rimbach G. Chemical Composition, Bioactivity and Safety Aspects of Kuding Tea-From Beverage to Herbal Extract. Nutrients 2020; 12:E2796. [PMID: 32932672 PMCID: PMC7551553 DOI: 10.3390/nu12092796] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Revised: 09/09/2020] [Accepted: 09/10/2020] [Indexed: 02/07/2023] Open
Abstract
Kuding tea (KT) is a bitter-tasting herbal tea that has been commonly used in traditional Chinese medicine (TCM). The large-leaved Ku-Ding-Cha (Aquifoliaceae) is composed of its representative species Ilex latifolia Thunb and Ilex kudingcha C.J. Tseng. Because of its potential lipid-lowering, body weight-reducing and blood-glucose-lowering properties, KT has increasingly been recognised for its importance over the past several decades. KT is no longer used only as a beverage, and various extraction methods have been applied to obtain aqueous and ethanolic KT extracts (KTE) or their fractions, which could potentially be used as dietary supplements. The major bioactive components of KT are triterpene saponins and polyphenols, but the composition of KT differs substantially between and among the different KT species. This in turn might affect the physiological effects of KT. KT exhibits antiobesity properties, possibly partly by affecting the intestinal microbiota. In addition, KT may mediate putative antioxidative, anti-inflammatory and anticancer activities. However, there is evidence that high KTE supplementation can adversely affect liver metabolism. The physiological relevance of KT in humans remains rather unclear since the potential health benefits of KT and its constituents reviewed here are mainly derived on the basis of in vitro and animal studies.
Collapse
Affiliation(s)
- Svenja Wüpper
- Institute of Human Nutrition and Food Science, University of Kiel, Hermann-Rodewald-Strasse 6, 24118 Kiel, Germany; (K.L.); (G.R.)
| | | | | |
Collapse
|
33
|
Huebbe P, Rimbach G. Historical Reflection of Food Processing and the Role of Legumes as Part of a Healthy Balanced Diet. Foods 2020; 9:E1056. [PMID: 32759873 PMCID: PMC7466326 DOI: 10.3390/foods9081056] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Revised: 07/30/2020] [Accepted: 07/31/2020] [Indexed: 12/22/2022] Open
Abstract
The purpose of food processing has changed over time. High-intensity industrially processed food often exhibits higher concentrations of added sugar, salt, higher energy, and lower micronutrient density than does similar food or meals prepared at home from raw or minimally processed food. Viewing the evolution of food processing from history, one could make out three major transitions related to human socioeconomic changes. The first transition was marked by the change from hunting and gathering to settled societies with agriculture and livestock farming. The second and third transitions were associated with the Industrial Revolution and with market liberalization, global trade and automation, respectively. The next major transition that will influence food processing and shape human nutrition may include the exploitation of sustainable and efficient protein and food sources that will ensure high-quality food production for the growing world population. Apart from novel food sources, traditional food such as legumes and pulses likewise exhibit great potential to contribute to a healthy balanced diet. The promotion of legumes should be intensified in public dietary guidelines because their consumption is rather low in high-income countries and increasingly displaced as a traditional staple by industrially processed food in low- to middle-income countries.
Collapse
Affiliation(s)
- Patricia Huebbe
- Institute of Human Nutrition and Food Science, University of Kiel, 24118 Kiel, Germany;
| | | |
Collapse
|
34
|
Li Y, Romey-Glüsing R, Tahan Zadeh N, von Frieling J, Hoffmann J, Huebbe P, Bruchhaus I, Rimbach G, Fink C, Roeder T. Furbellow (Brown Algae) Extract Increases Lifespan in Drosophila by Interfering with TOR-Signaling. Nutrients 2020; 12:E1172. [PMID: 32331413 PMCID: PMC7230866 DOI: 10.3390/nu12041172] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Revised: 04/17/2020] [Accepted: 04/21/2020] [Indexed: 12/30/2022] Open
Abstract
Algal products are well known for their health promoting effects. Nonetheless, an in depth understanding of the underlying molecular mechanisms is still only fragmentary. Here, we show that aqueous furbelow extracts (brown algae, Saccorhiza polyschides) lengthen the life of both sexes of the fruit fly Drosophila melanogaster substantially, if used as nutritional additives to conventional food. This life prolonging effect became even more pronounced in the presence of stressors, such as high-fat dieting of living under drought conditions. Application of the extracts did not change food intake, excretion, or other major physiological parameters. Nevertheless, effects on the intestinal microbiota were observed, leading to an increased species richness, which is usually associated with healthy conditions. Lifespan extension was not observed in target of rapamycin (TOR)-deficient animals, implying that functional TOR signaling is necessary to unfold the positive effects of brown algae extract (BAE) on this important trait. The lack of life lengthening in animals with deregulated TOR signaling exclusively targeted to body fat showed that this major energy storage organ is instrumental for transmitting these effects. In addition, expression of Imaginal morphogenesis protein-Late 2 (Imp-L2), an effective inhibitor of insulin signaling implies that BAE exerts their positive effects through interaction with the tightly interwoven TOR- and insulin-signaling systems, although insulin levels were not directly affected by this intervention.
Collapse
Affiliation(s)
- Yang Li
- Department of Molecular Physiology, Kiel University, D-24098 Kiel, Germany; (Y.L.); (R.R.-G.); (N.T.Z.); (J.v.F.); (J.H.); (C.F.)
- College of Life Sciences, Qingdao University, Qingdao 266071, China
| | - Renja Romey-Glüsing
- Department of Molecular Physiology, Kiel University, D-24098 Kiel, Germany; (Y.L.); (R.R.-G.); (N.T.Z.); (J.v.F.); (J.H.); (C.F.)
| | - Navid Tahan Zadeh
- Department of Molecular Physiology, Kiel University, D-24098 Kiel, Germany; (Y.L.); (R.R.-G.); (N.T.Z.); (J.v.F.); (J.H.); (C.F.)
| | - Jakob von Frieling
- Department of Molecular Physiology, Kiel University, D-24098 Kiel, Germany; (Y.L.); (R.R.-G.); (N.T.Z.); (J.v.F.); (J.H.); (C.F.)
| | - Julia Hoffmann
- Department of Molecular Physiology, Kiel University, D-24098 Kiel, Germany; (Y.L.); (R.R.-G.); (N.T.Z.); (J.v.F.); (J.H.); (C.F.)
| | - Patricia Huebbe
- Department of Food Sciences, Kiel University, 24098 Kiel, Germany; (P.H.); (G.R.)
| | - Iris Bruchhaus
- Bernhard-Nocht-Institute for Tropical Medicine, D-20359 Hamburg, Germany;
| | - Gerald Rimbach
- Department of Food Sciences, Kiel University, 24098 Kiel, Germany; (P.H.); (G.R.)
| | - Christine Fink
- Department of Molecular Physiology, Kiel University, D-24098 Kiel, Germany; (Y.L.); (R.R.-G.); (N.T.Z.); (J.v.F.); (J.H.); (C.F.)
- DZL, German Center for Lung Research, ARCN, D-24098 Kiel, Germany
| | - Thomas Roeder
- Department of Molecular Physiology, Kiel University, D-24098 Kiel, Germany; (Y.L.); (R.R.-G.); (N.T.Z.); (J.v.F.); (J.H.); (C.F.)
- DZL, German Center for Lung Research, ARCN, D-24098 Kiel, Germany
| |
Collapse
|
35
|
Pallauf K, Günther I, Chin D, Rimbach G. In Contrast to Dietary Restriction, Application of Resveratrol in Mice Does not Alter Mouse Major Urinary Protein Expression. Nutrients 2020; 12:nu12030815. [PMID: 32204477 PMCID: PMC7146287 DOI: 10.3390/nu12030815] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2020] [Revised: 03/16/2020] [Accepted: 03/17/2020] [Indexed: 12/20/2022] Open
Abstract
Resveratrol (RSV) supplementation in mice has been discussed as partly mimicking the beneficial effects of dietary restriction (DR). However, data on putative benefits from resveratrol application in mice and other model organisms including humans is contradictory. Mouse major urinary proteins (MUPs) are a family of proteins that are expressed in rodent liver and secreted via urine. Impacting (mating) behavior and pheromone communication, they are severely down-regulated upon DR. We carried out two studies in C57BL/6Rj mice where RSV was either supplemented via diet or injected intraperitoneally for 8 weeks. Contrary to −40% DR, RSV did not decrease total MUP protein expression or Mup (amongst others Mup3, Mup5, Mup6, Mup15, and Mup20) mRNA levels in mouse liver when compared to ad-libitum (AL)-fed controls. Since inhibitory glucocorticoid response elements can be found in Mup promoters, we also measured glucocorticoid receptor (GR) levels in nuclear hepatic extracts. Consistent with differential MUP expression, we observed more nuclear GR in DR mice than in RSV-supplemented and AL control mice with no difference between RSV and AL. These findings point to the notion that, in mice, RSV does not mimic DR in terms of differential MUP expression.
Collapse
|
36
|
Günther I, Rimbach G, Mack CI, Weinert CH, Danylec N, Lüersen K, Birringer M, Bracher F, Soukup ST, Kulling SE, Pallauf K. The Putative Caloric Restriction Mimetic Resveratrol has Moderate Impact on Insulin Sensitivity, Body Composition, and the Metabolome in Mice. Mol Nutr Food Res 2020; 64:e1901116. [PMID: 31962371 DOI: 10.1002/mnfr.201901116] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2019] [Revised: 12/12/2019] [Indexed: 01/23/2023]
Abstract
SCOPE Data on resveratrol-(trans-3,5,4'-trihydroxystilbene)-induced caloric-restriction-(CR)-mimicking effects in mice receiving a high-fat diet (HFD) are contradictory. It is hypothesized that this can possibly stem from different bioactivities of resveratrol (RSV) microbial metabolites. METHODS AND RESULTS C57BL/6Rj mice are fed an ad-libitum HFD supplemented with RSV or its metabolites, dihydroresveratrol (DHR) and lunularin (LUN) (≈28 mg (dihydro)stilbene kg-1 mouse per day). A 40% CR group was included in the study. While CR mice show robust changes in bodyweight and composition, hormone levels and mRNA expression, slight changes are found (more muscle, less adipose tissue) in body composition, leptin, and insulin levels in RSV-supplemented mice compared to ad libitum controls. LUN hardly and DHR does not change the hormone levels measured. Metabolome analysis of serum shows changes in CR mice but only slight, if any, changes in RSV-, DHR-, or LUN-supplemented mice compared to the controls. Evaluating the capability of RSV and its metabolites to inhibit carbohydrate-hydrolyzing enzymes in vitro, it is found that RSV reduced α-glucosidase activity to a stronger extent than DHR and LUN. CONCLUSION Decelerated carbohydrate breakdown by RSV may have contributed to the moderate impact of dietary RSV on mouse insulin sensitivity (lowered fasting and post-glucose-bolus insulin levels).
Collapse
Affiliation(s)
- Ilka Günther
- Institute of Human Nutrition and Food Science, University of Kiel, Hermann-Rodewald-Straße 6, 24118, Kiel, Germany
| | - Gerald Rimbach
- Institute of Human Nutrition and Food Science, University of Kiel, Hermann-Rodewald-Straße 6, 24118, Kiel, Germany
| | - Carina I Mack
- Max Rubner-Institut, Federal Research Institute of Nutrition and Food, Department of Safety and Quality of Fruit and Vegetables, Haid-und-Neu-Straße 9, 76131, Karlsruhe, Germany
| | - Christoph H Weinert
- Max Rubner-Institut, Federal Research Institute of Nutrition and Food, Department of Safety and Quality of Fruit and Vegetables, Haid-und-Neu-Straße 9, 76131, Karlsruhe, Germany
| | - Nicolas Danylec
- Max Rubner-Institut, Federal Research Institute of Nutrition and Food, Department of Safety and Quality of Fruit and Vegetables, Haid-und-Neu-Straße 9, 76131, Karlsruhe, Germany
| | - Kai Lüersen
- Institute of Human Nutrition and Food Science, University of Kiel, Hermann-Rodewald-Straße 6, 24118, Kiel, Germany
| | - Marc Birringer
- Department of Nutritional, Food and Consumer Sciences, Fulda University of Applied Sciences, Leipziger Straße 123, 36037, Fulda, Germany
| | - Franz Bracher
- Department of Pharmacy, Center for Drug Research, Ludwig-Maximilians University, Butenandtstraße 5-13, 81377, Munich, Germany
| | - Sebastian T Soukup
- Max Rubner-Institut, Federal Research Institute of Nutrition and Food, Department of Safety and Quality of Fruit and Vegetables, Haid-und-Neu-Straße 9, 76131, Karlsruhe, Germany
| | - Sabine E Kulling
- Max Rubner-Institut, Federal Research Institute of Nutrition and Food, Department of Safety and Quality of Fruit and Vegetables, Haid-und-Neu-Straße 9, 76131, Karlsruhe, Germany
| | - Kathrin Pallauf
- Institute of Human Nutrition and Food Science, University of Kiel, Hermann-Rodewald-Straße 6, 24118, Kiel, Germany
| |
Collapse
|
37
|
Wüpper S, Fischer A, Lüersen K, Lucius R, Okamoto H, Ishida Y, Terao K, Rimbach G. High Dietary Kuding Tea Extract Supplementation Induces Hepatic Xenobiotic-Metabolizing Enzymes-A 6-Week Feeding Study in Mice. Nutrients 2019; 12:E40. [PMID: 31877869 PMCID: PMC7019617 DOI: 10.3390/nu12010040] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Revised: 12/13/2019] [Accepted: 12/18/2019] [Indexed: 12/20/2022] Open
Abstract
Kuding tea (KT) is a traditional Chinese beverage rich in plant bioactives that may exhibit various health benefits. However, little is known about the safety of KT extract (KTE) when consumed long term at high doses as a dietary supplement. Therefore, in this study, we investigated aspects of the safety of KTE. Male C57BL/6 mice were fed a high-fat, high-fructose, Western-type diet (control) supplemented with either 12.88% γ-cyclodextrin (γCD), 7.12% KTE (comprising 0.15% ursolic acid, UA) encapsulated in 12.88% γCD (KTE-γCD), or 0.15% UA over a 6-week experimental period. The dietary treatments did not affect food intake, body weight or body composition. However, treatment with KTE-γCD, but not γCD and UA, increased liver weight and hepatic fat accumulation, which was accompanied by increased hepatic PPARγ and CD36 mRNA levels. KTE-γCD treatment elevated plasma cholesterol and CYP7A1 mRNA and protein levels compared to those in control mice. KTE-γCD substantially increased the mRNA and protein levels of hepatic CYP3A and GSTA1, which are central to the detoxification of drugs and xenobiotics. Furthermore, we observed a moderate elevation in hepatic CYP3A (5-fold change) and GSTA1 (1.7-fold change) mRNA levels in UA-fed mice. In vitro data collected in HepG2 cells indicated a dose-dependent increase in hepatic cytotoxicity in response to KTE treatment, which may have been partly mediated by UA. Overall, the present data may contribute to the safety assessment of KTE and suggest that KTE encapsulated in γCD affects liver fat storage and the hepatic phase I and phase II responses in mice.
Collapse
Affiliation(s)
- Svenja Wüpper
- Institute of Human Nutrition and Food Science, University of Kiel, Hermann-Rodewald-Strasse 6, 24118 Kiel, Germany; (A.F.); (K.L.); (G.R.)
| | - Alexandra Fischer
- Institute of Human Nutrition and Food Science, University of Kiel, Hermann-Rodewald-Strasse 6, 24118 Kiel, Germany; (A.F.); (K.L.); (G.R.)
| | - Kai Lüersen
- Institute of Human Nutrition and Food Science, University of Kiel, Hermann-Rodewald-Strasse 6, 24118 Kiel, Germany; (A.F.); (K.L.); (G.R.)
| | - Ralph Lucius
- Anatomical Institute, University of Kiel, Otto-Hahn Platz 8, 24118 Kiel, Germany;
| | - Hinako Okamoto
- CycloChem Bio Co., Ltd., 7-4-5 Minatojima-minamimachi, Chuo-ku, Kobe 650-0047, Japan; (H.O.); (Y.I.); (K.T.)
| | - Yoshiyuki Ishida
- CycloChem Bio Co., Ltd., 7-4-5 Minatojima-minamimachi, Chuo-ku, Kobe 650-0047, Japan; (H.O.); (Y.I.); (K.T.)
| | - Keiji Terao
- CycloChem Bio Co., Ltd., 7-4-5 Minatojima-minamimachi, Chuo-ku, Kobe 650-0047, Japan; (H.O.); (Y.I.); (K.T.)
| | - Gerald Rimbach
- Institute of Human Nutrition and Food Science, University of Kiel, Hermann-Rodewald-Strasse 6, 24118 Kiel, Germany; (A.F.); (K.L.); (G.R.)
| |
Collapse
|
38
|
Aboufarrag HT, Needs PW, Rimbach G, Kroon PA. The Effects of Anthocyanins and Their Microbial Metabolites on the Expression and Enzyme Activities of Paraoxonase 1, an Important Marker of HDL Function. Nutrients 2019; 11:nu11122872. [PMID: 31771252 PMCID: PMC6950676 DOI: 10.3390/nu11122872] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2019] [Revised: 11/19/2019] [Accepted: 11/21/2019] [Indexed: 12/12/2022] Open
Abstract
High circulating HDL concentrations and measures of various HDL functions are inversely associated with cardiovascular disease (CVD) risk. Paraoxonase 1 (PON1) contributes to many of the athero-protective functions of HDL, such as promoting the reverse cholesterol transport process and reducing the levels of oxidized LDL. PON1 activities are influenced by several factors, the most important being diet and genetic polymorphisms. Reported data from randomized controlled trials have shown that anthocyanin consumption increased PON1 activity. However, the underlying molecular mechanisms by which anthocyanins increase PON1 activity are not understood. Therefore, the aim of this research was to investigate the ability of anthocyanins and their metabolites to increase PON1 gene expression and/or enzyme activities as potential mechanisms. The effect of the two predominant dietary anthocyanins and 18 of their recently identified microbial metabolites including their phase-II conjugates on PON1 gene expression was studied using a PON1-Huh7 stably-transfected cell line and reporter gene assay. The effects of these compounds on PON1 arylesterase and lactonase activities were investigated using two isoforms of the PON1 enzyme that are the phenotypes of the 192Q/R polymorphism. None of the compounds caused even modest changes in PON1 promoter activity (p ≥ 0.05). Further, none of the compounds at physiological concentrations caused any significant changes in the arylesterase or lactonase activity of either of the iso-enzymes. Cyanidin reduced the lactonase activity of the PON1-R192R enzyme at high concentrations (−22%, p < 0.001), but not at physiologically achievable concentrations. In conclusion, none of the data reported here support the notion that anthocyanins or their metabolites affect PON1 transactivation or enzyme activities.
Collapse
Affiliation(s)
- Hassan T. Aboufarrag
- Food Innovation & Health, Quadram Institute Bioscience, Norwich Research Park, Norwich, Norfolk NR4 7UA, UK; (H.T.A.); (P.W.N.)
- Food Science and Technology Department, Faculty of Agriculture, Alexandria University, Alexandria 23511, Egypt
| | - Paul W. Needs
- Food Innovation & Health, Quadram Institute Bioscience, Norwich Research Park, Norwich, Norfolk NR4 7UA, UK; (H.T.A.); (P.W.N.)
| | - Gerald Rimbach
- Institute of Human Nutrition and Food Science, Christian-Albrechts-University of Kiel, 24118 Kiel, Germany;
| | - Paul A. Kroon
- Food Innovation & Health, Quadram Institute Bioscience, Norwich Research Park, Norwich, Norfolk NR4 7UA, UK; (H.T.A.); (P.W.N.)
- Correspondence:
| |
Collapse
|
39
|
Fischer A, Lüersen K, Schultheiß G, de Pascual-Teresa S, Mereu A, Ipharraguerre IR, Rimbach G. Supplementation with nitrate only modestly affects lipid and glucose metabolism in genetic and dietary-induced murine models of obesity. J Clin Biochem Nutr 2019; 66:24-35. [PMID: 32001953 PMCID: PMC6983433 DOI: 10.3164/jcbn.19-43] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2019] [Accepted: 09/11/2019] [Indexed: 01/07/2023] Open
Abstract
To gain a better understanding of how nitrate may affect carbohydrate and lipid metabolism, female wild-type mice were fed a high-fat, high-fructose diet supplemented with either 0, 400, or 800 mg nitrate/kg diet for 28 days. Additionally, obese female db/db mice were fed a 5% fat diet supplemented with the same levels and source of nitrate. Nitrate decreased the sodium-dependent uptake of glucose by ileal mucosa in wild-type mice. Moreover, nitrate significantly decreased triglyceride content and mRNA expression levels of Pparγ in liver and Glut4 in skeletal muscle. Oral glucose tolerance as well as plasma cholesterol, triglyceride, insulin, leptin, glucose and the activity of ALT did not significantly differ between experimental groups but was higher in db/db mice than in wild-type mice. Nitrate changed liver fatty acid composition and mRNA levels of Fads only slightly. Further hepatic genes encoding proteins involved in lipid and carbohydrate metabolism were not significantly different between the three groups. Biomarkers of inflammation and autophagy in the liver were not affected by the different dietary treatments. Overall, the present data suggest that short-term dietary supplementation with inorganic nitrate has only modest effects on carbohydrate and lipid metabolism in genetic and dietary-induced mouse models of obesity.
Collapse
Affiliation(s)
- Alexandra Fischer
- Institute of Human Nutrition and Food Science, Food Science, University of Kiel, Hermann-Rodewald-Strasse 6, 24118 Kiel, Germany
| | - Kai Lüersen
- Institute of Human Nutrition and Food Science, Food Science, University of Kiel, Hermann-Rodewald-Strasse 6, 24118 Kiel, Germany
| | - Gerhard Schultheiß
- Animal Welfare Officer, University of Kiel, Hermann-Rodewald-Strasse 12, 24118 Kiel, Germany
| | - Sonia de Pascual-Teresa
- Department of Metabolism and Nutrition, Institute of Food Science, Food Technology and Nutrition (ICTAN-CSIC), José Antonio Novais 10, 28040 Madrid, Spain
| | - Alessandro Mereu
- Yara Iberian, C/ Infanta Mercedes 31 - 2nd floor, 28020 Madrid, Spain
| | - Ignacio R Ipharraguerre
- Institute of Human Nutrition and Food Science, Food Science, University of Kiel, Hermann-Rodewald-Strasse 6, 24118 Kiel, Germany
| | - Gerald Rimbach
- Institute of Human Nutrition and Food Science, Food Science, University of Kiel, Hermann-Rodewald-Strasse 6, 24118 Kiel, Germany
| |
Collapse
|
40
|
Seidel U, Baumhof E, Hägele FA, Bosy-Westphal A, Birringer M, Rimbach G. Lithium-Rich Mineral Water is a Highly Bioavailable Lithium Source for Human Consumption. Mol Nutr Food Res 2019; 63:e1900039. [PMID: 31051049 DOI: 10.1002/mnfr.201900039] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2019] [Revised: 03/27/2019] [Indexed: 01/24/2023]
Abstract
SCOPE Lithium is an important trace element in human nutrition and medicine. Mineral and medicinal waters may represent a significant source of dietary lithium intake. METHODS AND RESULTS The lithium concentration of 360 German mineral and 21 medicinal waters is determined. Based on a systematic screening, three different mineral waters exhibiting low (1.7 µg L-1 ), medium (171 µg L-1 ), and high lithium (1724 µg L-1 ) concentrations are chosen for an acute bioavailability study in male healthy volunteers. In Germany, a north-east to south-west gradient of analyzed lithium concentrations is observed in the 381 tested waters. The lithium concentration in the water is significantly correlated with its sodium (r = 0. 810), potassium (r = 0.716), and magnesium (r = 0.361), but not with its calcium concentration. In a randomized cross-over trial, volunteers (n = 3×10 each) drink 1.5 L of the respective mineral waters, and lithium concentrations in serum and urine are monitored over 24 h. Consumption of the mineral waters with a medium and high lithium content results in a dose-dependent response in serum lithium concentrations and total urinary lithium excretion. CONCLUSION Lithium-rich mineral and medicinal waters may be an important and highly bioavailable lithium source for human consumption.
Collapse
Affiliation(s)
- Ulrike Seidel
- Kiel University, Institute of Human Nutrition and Food Science, Devision of Food Science, 24118, Kiel, Germany
| | - Elena Baumhof
- Kiel University, Institute of Human Nutrition and Food Science, Devision of Food Science, 24118, Kiel, Germany
| | - Franziska A Hägele
- Kiel University, Institute of Human Nutrition and Food Science, Devision of Food Science, 24118, Kiel, Germany
| | - Anja Bosy-Westphal
- Kiel University, Institute of Human Nutrition and Food Science, Devision of Food Science, 24118, Kiel, Germany
| | - Marc Birringer
- Fulda University of Applied Science, Devision of Nutritional, Food and Consumer Science, 36037, Fulda, Germany
| | - Gerald Rimbach
- Kiel University, Institute of Human Nutrition and Food Science, Devision of Food Science, 24118, Kiel, Germany
| |
Collapse
|
41
|
Torno C, Staats S, Fickler A, de Pascual-Teresa S, Soledad Izquierdo M, Rimbach G, Schulz C. Combined effects of nutritional, biochemical and environmental stimuli on growth performance and fatty acid composition of gilthead sea bream (Sparus aurata). PLoS One 2019; 14:e0216611. [PMID: 31086380 PMCID: PMC6516738 DOI: 10.1371/journal.pone.0216611] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2018] [Accepted: 04/24/2019] [Indexed: 01/06/2023] Open
Abstract
The reliance of the aquafeed industry on marine resources has to be reduced by innovative approaches in fish nutrition. Thus, a three-factorial approach (fish oil reduced diet, phytochemical genistein, and temperature reduction) was chosen to investigate the interaction of effects on growth performance and tissue omega-3 long chain polyunsaturated fatty acid (LC-PUFA) levels in juvenile sea bream (Sparus aurata, 12.5 ± 2.2 g). Genistein is a phytoestrogen with estrogen-like activity and thus LC-PUFA increasing potential. A decrease in the rearing temperature was chosen based on the positive effects of low temperature on fish lipid quality. The experimental diets were reduced in marine ingredients and had a fish oil content of either 6% dry matter (DM; F6: positive control) or 2% DM (F2: negative control) and were administered in the plain variant or with inclusion of 0.15% DM genistein (F6 + G and F2 + G). The feeding trial was performed simultaneously at 23°C and 19°C. The results indicated that solely temperature had a significant effect on growth performance and whole body nutrient composition of sea bream. Nevertheless, the interaction of all three factors significantly affected the fatty acid compositions of liver and fillet tissue. Most importantly, they led to a significant increase by 4.3% of fillet LC-PUFA content in sea bream fed with the diet F6 + G in comparison to control fish fed diet F6, when both groups were held at 19°C. It is hypothesized that genistein can act via estrogen-like as well as other mechanisms and that the dietary LC-PUFA content may impact its mode of action. Temperature most likely exhibited its effects indirectly via altered growth rates and metabolism. Although effects of all three factors and of genistein in particular were only marginal, they highlight a possibility to utilize the genetic capacity of sea bream to improve tissue lipid quality.
Collapse
Affiliation(s)
- Claudia Torno
- GMA—Gesellschaft für Marine Aquakultur mbH, Büsum, Germany
- Marine Aquaculture Research Group, Institute of Animal Breeding and Husbandry, Faculty of Agricultural and Nutritional Sciences, University of Kiel, Kiel, Germany
- * E-mail:
| | - Stefanie Staats
- Food Science Research Group, Institute of Human Nutrition and Food Science, Faculty of Agricultural and Nutritional Sciences, University of Kiel, Kiel, Germany
| | - Anna Fickler
- GMA—Gesellschaft für Marine Aquakultur mbH, Büsum, Germany
- Marine Aquaculture Research Group, Institute of Animal Breeding and Husbandry, Faculty of Agricultural and Nutritional Sciences, University of Kiel, Kiel, Germany
| | - Sonia de Pascual-Teresa
- Department of Metabolism and Nutrition, Institute of Food Science, Food Technology and Nutrition (ICTAN–CSIC), Madrid, Spain
| | - María Soledad Izquierdo
- Grupo de Investigación en Acuicultura (GIA), Instituto Universitario Ecoaqua, Universidad de Las Palmas de Gran Canaria, Telde, Las Palmas, Canary Islands, Spain
| | - Gerald Rimbach
- Food Science Research Group, Institute of Human Nutrition and Food Science, Faculty of Agricultural and Nutritional Sciences, University of Kiel, Kiel, Germany
| | - Carsten Schulz
- GMA—Gesellschaft für Marine Aquakultur mbH, Büsum, Germany
- Marine Aquaculture Research Group, Institute of Animal Breeding and Husbandry, Faculty of Agricultural and Nutritional Sciences, University of Kiel, Kiel, Germany
| |
Collapse
|
42
|
Hirose M, Künstner A, Schilf P, Tietjen AK, Jöhren O, Huebbe P, Rimbach G, Rupp J, Schwaninger M, Busch H, Ibrahim SM. A Natural mtDNA Polymorphism in Complex III Is a Modifier of Healthspan in Mice. Int J Mol Sci 2019; 20:E2359. [PMID: 31085998 PMCID: PMC6539666 DOI: 10.3390/ijms20092359] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2019] [Revised: 05/03/2019] [Accepted: 05/09/2019] [Indexed: 02/06/2023] Open
Abstract
In this study, we provide experimental evidence that a maternally inherited polymorphism in the mitochondrial cytochrome b gene (mt-Cytb; m.15124A>G, Ile-Val) in mitochondrial complex III resulted in middle-aged obesity and higher susceptibility to diet-induced obesity, as well as age-related inflammatory disease, e.g., ulcerative dermatitis, in mice. As a consequence of the gene variation, we observed alterations in body composition, metabolism and mitochondrial functions, i.e., increased mitochondrial oxygen consumption rate and higher levels of reactive oxygen species, as well as in the commensal bacterial composition in the gut, with higher abundance of Proteobacteria in mice carrying the variant. These observations are in line with the previously described links of the mitochondrial complex III gene with obesity and metabolic diseases in humans. Given that these functional changes by the G variant at m.15124 in the mt-Cytb are already present in young mice that were kept under normal condition, it is plausible that the m.15124A>G variant is a disease susceptibility modifier to the diseases induced by additional stressors, i.e., dietary and/or aging stress, and that the variant results in the higher incidence of clinical diseases presentation in C57BL/6J-mt129S1/SvlmJ than C57BL/6J mice. Thus, mtDNA variants could be potential biomarkers to evaluate the healthspan.
Collapse
Affiliation(s)
- Misa Hirose
- Luebeck Institute of Experimental Dermatology, University of Luebeck, 23562 Luebeck, Germany.
| | - Axel Künstner
- Luebeck Institute of Experimental Dermatology and Institute for Cardiogenetics, University of Luebeck, 23562 Luebeck, Germany.
| | - Paul Schilf
- Luebeck Institute of Experimental Dermatology, University of Luebeck, 23562 Luebeck, Germany.
| | - Anna Katharina Tietjen
- Luebeck Institute of Experimental Dermatology, University of Luebeck, 23562 Luebeck, Germany.
| | - Olaf Jöhren
- Center of Brain, Behavior & Metabolism, University of Luebeck, 23562 Luebeck, Germany.
| | - Patricia Huebbe
- Institute of Human Nutrition and Food Science, University of Kiel, 24098 Kiel, Germany.
| | - Gerald Rimbach
- Institute of Human Nutrition and Food Science, University of Kiel, 24098 Kiel, Germany.
| | - Jan Rupp
- Department of Infectious Disease and Microbiology, University of Luebeck, 23562 Luebeck, Germany.
| | - Markus Schwaninger
- Institute of Experimental and Clinical Pharmacology and Toxicology, University of Luebeck, 23562 Luebeck, Germany.
| | - Hauke Busch
- Luebeck Institute of Experimental Dermatology, Institute for Cardiogenetics and Center for research of inflammatory skin disease (CRIS), University of Luebeck, 23562 Luebeck, Germany.
| | - Saleh M Ibrahim
- Luebeck Institute of Experimental Dermatology and Center for research of inflammatory skin disease (CRIS), University of Luebeck, 23562 Luebeck, Germany.
| |
Collapse
|
43
|
Pallauf K, Chin D, Günther I, Birringer M, Lüersen K, Schultheiß G, Vieten S, Krauß J, Bracher F, Danylec N, Soukup ST, Kulling SE, Rimbach G. Resveratrol, lunularin and dihydroresveratrol do not act as caloric restriction mimetics when administered intraperitoneally in mice. Sci Rep 2019; 9:4445. [PMID: 30872769 PMCID: PMC6418094 DOI: 10.1038/s41598-019-41050-2] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2018] [Accepted: 01/16/2019] [Indexed: 12/13/2022] Open
Abstract
Resveratrol as well as caloric restriction were shown to extend lifespan in some model organisms and may possibly delay onset of ageing-related diseases in humans. Yet, resveratrol supplementation does not always extend lifespan of animal models or improve health status of humans. Because of interindividual differences in human microbiota, resveratrol metabolite production in the gut differs. While some individuals produce lunularin and dihydroresveratrol in their gut, others produce dihydroresveratrol only. Therefore, we addressed the question whether these metabolites differ in their biological impact on ageing and intraperitoneally injected 13-month-old C57BL/6JRj mice on an ad-libitum (AL) HFD with resveratrol, dihydroresveratrol or lunularin (24 mg/kg bodyweight; 3 times/week). Compared to mice injected with vehicle (AL-control), resveratrol and dihydroresveratrol did not change bodyweight and had no impact on insulin or glucose levels while lunularin slightly reduced feed intake and bodyweight gain. CR-mice showed lowered cholesterol, insulin and leptin levels, elevated adiponectin and phosphorylated AMPK levels in liver as well as increased transcription of Pck1 and Pgc1α when compared to the AL-control. In contrast, injections with the test substances did not change these parameters. We therefore conclude that in our model, resveratrol, lunularin and dihydroresveratrol did not act as CR mimetics.
Collapse
Affiliation(s)
- Kathrin Pallauf
- Institute of Human Nutrition and Food Science, University of Kiel, Hermann-Rodewald-Straße 6, 24118, Kiel, Germany.
| | - Dawn Chin
- Institute of Human Nutrition and Food Science, University of Kiel, Hermann-Rodewald-Straße 6, 24118, Kiel, Germany
| | - Ilka Günther
- Institute of Human Nutrition and Food Science, University of Kiel, Hermann-Rodewald-Straße 6, 24118, Kiel, Germany
| | - Marc Birringer
- Department of Nutritional, Food and Consumer Sciences, Fulda University of Applied Sciences, Leipziger Straße 123, 36037, Fulda, Germany
| | - Kai Lüersen
- Institute of Human Nutrition and Food Science, University of Kiel, Hermann-Rodewald-Straße 6, 24118, Kiel, Germany
| | - Gerald Schultheiß
- Animal welfare office, University of Kiel, Olshausenstraße 40, 24118, Kiel, Germany
| | - Sarah Vieten
- Animal welfare office, University of Kiel, Olshausenstraße 40, 24118, Kiel, Germany
| | - Jürgen Krauß
- Department of Pharmacy, Center for Drug Research, Ludwig-Maximilians University, Butenandtstraße 5-13, 81377, Munich, Germany
| | - Franz Bracher
- Department of Pharmacy, Center for Drug Research, Ludwig-Maximilians University, Butenandtstraße 5-13, 81377, Munich, Germany
| | - Nicolas Danylec
- Max Rubner-Institut, Federal Research Institute of Nutrition and Food, Department of Safety and Quality of Fruit and Vegetables, Haid-und-Neu-Straße 9, 76131, Karlsruhe, Germany
| | - Sebastian T Soukup
- Max Rubner-Institut, Federal Research Institute of Nutrition and Food, Department of Safety and Quality of Fruit and Vegetables, Haid-und-Neu-Straße 9, 76131, Karlsruhe, Germany
| | - Sabine E Kulling
- Max Rubner-Institut, Federal Research Institute of Nutrition and Food, Department of Safety and Quality of Fruit and Vegetables, Haid-und-Neu-Straße 9, 76131, Karlsruhe, Germany
| | - Gerald Rimbach
- Institute of Human Nutrition and Food Science, University of Kiel, Hermann-Rodewald-Straße 6, 24118, Kiel, Germany
| |
Collapse
|
44
|
Staats S, Wagner AE, Lüersen K, Künstner A, Meyer T, Kahns AK, Derer S, Graspeuntner S, Rupp J, Busch H, Sina C, Ipharraguerre IR, Rimbach G. Dietary ursolic acid improves health span and life span in male Drosophila melanogaster. Biofactors 2019; 45:169-186. [PMID: 30496629 DOI: 10.1002/biof.1467] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/04/2018] [Accepted: 09/26/2018] [Indexed: 12/13/2022]
Abstract
The health and life span of Drosophila melanogaster are partly determined by intestinal barrier integrity, metabolic rate as well as stress response and the expression of longevity-associated genes, depending on genetic and dietary factors. Ursolic acid (UA) is a naturally occurring triterpenoid exhibiting potential antimicrobial, anti-inflammatory, and antiobesity activity and counteracting age-related deficits in muscle strength. In this study, UA was dietarily administered to w1118 D. melanogaster which significantly elongated the health and life span of males. Spargel (srl) is the Drosophila orthologue of mammalian peroxisome proliferator-activated receptor-gamma coactivator 1 α(PGC1α), an important regulator of energy homeostasis and mitochondrial function. Our results indicate that the health-promoting effect of UA, demonstrated by a significant increase in climbing activity, occurs via an upregulation of srl expression leading to a metabolic shift in the fly without reducing fecundity or gut integrity. Moreover, UA affected the flies' microbiota in a manner that contributed to life span extension. Srl expression and microbiota both seem to be affected by UA, as we determined by using srl-mutant and axenic flies. © 2018 BioFactors, 45(2):169-186, 2019.
Collapse
Affiliation(s)
- Stefanie Staats
- Institute of Human Nutrition and Food Science, University of Kiel, Kiel, Germany
| | - Anika E Wagner
- Institute of Nutritional Medicine, University of Lübeck, Lübeck, Germany
| | - Kai Lüersen
- Institute of Human Nutrition and Food Science, University of Kiel, Kiel, Germany
| | - Axel Künstner
- Group for Medical Systems Biology, Lübeck Institute of Experimental Dermatology, University of Lübeck, Lübeck, Germany
- Institute for Cardiogenetics, University of Lübeck, Lübeck, Germany
| | - Timo Meyer
- Institute of Human Nutrition and Food Science, University of Kiel, Kiel, Germany
| | - Anna K Kahns
- Institute of Human Nutrition and Food Science, University of Kiel, Kiel, Germany
| | - Stefanie Derer
- Institute of Nutritional Medicine, University of Lübeck, Lübeck, Germany
| | - Simon Graspeuntner
- Department of Infectious Diseases and Microbiology, University of Lübeck, Lübeck, Germany
| | - Jan Rupp
- Department of Infectious Diseases and Microbiology, University of Lübeck, Lübeck, Germany
| | - Hauke Busch
- Group for Medical Systems Biology, Lübeck Institute of Experimental Dermatology, University of Lübeck, Lübeck, Germany
- Institute for Cardiogenetics, University of Lübeck, Lübeck, Germany
| | - Christian Sina
- Institute of Nutritional Medicine, University of Lübeck, Lübeck, Germany
| | | | - Gerald Rimbach
- Institute of Human Nutrition and Food Science, University of Kiel, Kiel, Germany
| |
Collapse
|
45
|
Fickler A, Staats S, Michl SC, Hasler M, Rimbach G, Schulz C. Combination of Dietary Ahiflower Oil and Equol Enhances Long‐Chain Polyunsaturated Fatty Acid Levels in Rainbow Trout Tissues. Lipids 2019; 53:1069-1083. [DOI: 10.1002/lipd.12117] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2018] [Revised: 12/18/2018] [Accepted: 12/18/2018] [Indexed: 11/09/2022]
Affiliation(s)
- Anna Fickler
- GMA ‐ Gesellschaft für Marine Aquakultur mbH Hafentörn 3, 25761, Büsum Germany
- Institute of Animal Breeding and HusbandryKiel University Hermann‐Rodewald‐Str. 6, 24118, Kiel Germany
| | - Stefanie Staats
- Institute of Human Nutrition and Food ScienceKiel University Hermann‐Rodewald‐Str. 6, 24118, Kiel Germany
| | - Stéphanie Céline Michl
- GMA ‐ Gesellschaft für Marine Aquakultur mbH Hafentörn 3, 25761, Büsum Germany
- Institute of Animal Breeding and HusbandryKiel University Hermann‐Rodewald‐Str. 6, 24118, Kiel Germany
| | - Mario Hasler
- Lehrfach VariationsstatistikKiel University Hermann‐ Rodewald‐Str. 9, 24118 Kiel Germany
| | - Gerald Rimbach
- Institute of Human Nutrition and Food ScienceKiel University Hermann‐Rodewald‐Str. 6, 24118, Kiel Germany
| | - Carsten Schulz
- GMA ‐ Gesellschaft für Marine Aquakultur mbH Hafentörn 3, 25761, Büsum Germany
- Institute of Animal Breeding and HusbandryKiel University Hermann‐Rodewald‐Str. 6, 24118, Kiel Germany
| |
Collapse
|
46
|
Lüersen K, Röder T, Rimbach G. Drosophila melanogaster in nutrition research-the importance of standardizing experimental diets. Genes Nutr 2019; 14:3. [PMID: 30766617 PMCID: PMC6359822 DOI: 10.1186/s12263-019-0627-9] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/14/2018] [Accepted: 01/16/2019] [Indexed: 02/07/2023]
Abstract
The fruit fly Drosophila melanogaster has been increasingly recognized as an important model organism in nutrition research. In order to conduct nutritional studies in fruit flies, special attention should be given to the composition of the experimental diets. Besides complex diets, which are often based on maize, yeast, sucrose, and agar, Drosophila can be also fed chemically defined diets. These so-called holidic diets are standardized in terms of their macro- and micronutrient composition although the quantitative nutrient requirements of flies have yet not been fully established and warrant further investigations. For instance, only few studies address the fatty acid, vitamin, mineral, and trace element requirements of fruit flies. D. melanogaster may be also of interest in the field of nutritional medicine. Diet-induced diabetes and obesity models have been established, and in this context, often, the so-called high-fat and high-sugar diets are fed. However, the composition of these diets is not sufficiently defined and varies between studies. A consensus within the scientific community needs to be reached to standardize the exact composition of experimental complex and holidic diets for D. melanogaster in nutrition research. Since D. melanogaster is an established valuable model system for numerous human diseases, standardized diets are also a prerequisite to conduct diet-disease interaction studies. We suggest that a comprehensive approach, which combines deep phenotyping with disease-related Drosophila models under defined dietary conditions, might lead to the foundation of a so-called fly clinic.
Collapse
Affiliation(s)
- Kai Lüersen
- 1Institute of Human Nutrition and Food Science, University of Kiel, 24118 Kiel, Germany
| | - Thomas Röder
- 2Department of Molecular Physiology, Institute of Zoology, Kiel University, Kiel, Germany.,3Airway Research Center North, German Center for Lung Research (DZL), Kiel, Germany
| | - Gerald Rimbach
- 1Institute of Human Nutrition and Food Science, University of Kiel, 24118 Kiel, Germany
| |
Collapse
|
47
|
Fickler A, Staats S, Rimbach G, Schulz C. Screening dietary biochanin A, daidzein, equol and genistein for their potential to increase DHA biosynthesis in rainbow trout (Oncorhynchus mykiss). PLoS One 2019; 14:e0210197. [PMID: 30645603 PMCID: PMC6333376 DOI: 10.1371/journal.pone.0210197] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2018] [Accepted: 12/18/2018] [Indexed: 01/25/2023] Open
Abstract
Plant oil utilization in aquafeeds is still the most practical option, although it decreases the content of the nutritionally highly valuable omega-3 fatty acids eicosapentaenoic acid (20:5n-3, EPA) and docosahexaenoic acid (22:6n-3, DHA) in fish. Phytoestrogens and their metabolites are putatively able to affect genes encoding proteins centrally involved in the biosynthesis of EPA and DHA due to their estrogenic potential. Thus, the aim of the study was to screen the potential of the phytoestrogens to stimulate the biosynthesis of EPA and DHA in rainbow trout (Oncorhynchus mykiss). Additionally, the potential effects on growth performance, nutrient composition and hepatic lipid metabolism in rainbow trout were investigated. For that, a vegetable oil based diet served as a control diet (C) and was supplemented with 15 g/kg dry matter of biochanin A (BA), daidzein (DA), genistein (G) and equol (EQ), respectively. These five diets were fed to rainbow trout (initial body weight 83.3 ± 0.4 g) for 52 days. Growth performance and nutrient composition of whole body homogenates were not affected by the dietary treatments. Furthermore, feeding EQ to rainbow trout significantly increased DHA levels by +8% in whole body homogenates compared to samples of fish fed the diet C. A tendency towards increased DHA levels in whole body homogenates was found for fish fed the diet G. Fish fed diets BA and DA lacked these effects. Moreover, EQ and G fed fish showed significantly decreased hepatic mRNA steady state levels for fatty acyl desaturase 2a (delta-6) (fads2a(d6)). In contrast, carnitine palmitoyl transferases 1 (cpt1) hepatic mRNA steady state levels and hepatic Fads2a(d6) protein contents were not affected by the dietary treatment. In conclusion, when combined with dietary vegetable oils, equol and genistein seem to stimulate the biosynthesis of DHA and thereby increase tissue DHA levels in rainbow trout, however, only to a moderate extent.
Collapse
Affiliation(s)
- Anna Fickler
- GMA—Gesellschaft für Marine Aquakultur mbH, Büsum, Germany
- Institute of Animal Breeding and Husbandry, Kiel University, Kiel, Germany
- * E-mail:
| | - Stefanie Staats
- Institute of Human Nutrition and Food Science, Kiel University, Kiel, Germany
| | - Gerald Rimbach
- Institute of Human Nutrition and Food Science, Kiel University, Kiel, Germany
| | - Carsten Schulz
- GMA—Gesellschaft für Marine Aquakultur mbH, Büsum, Germany
- Institute of Animal Breeding and Husbandry, Kiel University, Kiel, Germany
| |
Collapse
|
48
|
Kühn G, Pallauf K, Schulz C, Birringer M, Diaz-Rica B, de Pascual-Teresa S, Rimbach G. Resveratrol Modulates Desaturase Expression and Fatty Acid Composition of Cultured Hepatocytes. Front Nutr 2018; 5:106. [PMID: 30488034 PMCID: PMC6246710 DOI: 10.3389/fnut.2018.00106] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2018] [Accepted: 10/23/2018] [Indexed: 11/13/2022] Open
Abstract
This study aimed to evaluate whether resveratrol (RSV) and its microbial metabolites dihydro-resveratrol (DHR) and lunularin (LUN) affected fatty acid metabolism and omega-3 polyunsaturated fatty acid (n3-PUFA) synthesis in cultured hepatocytes. To this end, cultured human HepG2 hepatocytes were treated with non-toxic concentrations of these polyphenols (40 μM) and Δ5- and Δ6-desaturase (FADS1 and FADS2, respectively) expression was measured. Resveratrol induced both genes but DHR and LUN showed no effect. Co-incubation of RSV with α-linolenic acid (ALA) also induced FADS1 and FADS2 expression. Moreover, transcription of carnitine palmitoyltransferase 1A and fatty acid synthase expression was increased, indicating induction of β-oxidation and fatty acid synthesis, respectively. Using gas chromatography to measure fatty acid levels, we observed the impact of RSV with and without ALA treatment on fatty acid composition. However, RSV reduced unsaturated while increasing saturated fatty acid levels. We found lower amounts of monounsaturated fatty acids (16:1n-7c, 18:1n-9c, 18:1n7c, and 20:1n-9) and n3-PUFA docosahexaenoic acid whereas unsaturated fatty acid levels, especially of stearic acid, were elevated. Of interest, once we co-incubated the cells with RSV together with bovine serum albumin, we found no differences in gene expression compared to cells without RSV treatment. Although we found no positive effect of RSV on n3-PUFA synthesis, the stilbene could possibly prevent cellular stress by decreasing unsaturated fatty acid levels.
Collapse
Affiliation(s)
- Gianna Kühn
- Institute of Human Nutrition and Food Science, University of Kiel, Kiel, Germany
| | - Kathrin Pallauf
- Institute of Human Nutrition and Food Science, University of Kiel, Kiel, Germany
| | - Carsten Schulz
- Institute of Animal Breeding and Husbandry, University of Kiel, Kiel, Germany.,GMA-Gesellschaft für Marine Aquakultur mbH, Büsum, Germany
| | - Marc Birringer
- Department of Nutritional, Food, and Consumer Sciences, University of Applied Sciences Fulda, Fulda, Germany
| | - Beatriz Diaz-Rica
- Department of Metabolism and Nutrition, Institute of Food Science, Food Technology and Nutrition (ICTAN-CSIC), Madrid, Spain
| | - Sonia de Pascual-Teresa
- Department of Metabolism and Nutrition, Institute of Food Science, Food Technology and Nutrition (ICTAN-CSIC), Madrid, Spain
| | - Gerald Rimbach
- Institute of Human Nutrition and Food Science, University of Kiel, Kiel, Germany
| |
Collapse
|
49
|
Fickler A, Staats S, Hasler M, Rimbach G, Schulz C. Dietary Buglossoides arvensis Oil as a Potential Candidate to Substitute Fish Oil in Rainbow Trout Diets. Lipids 2018; 53:809-823. [PMID: 30334262 DOI: 10.1002/lipd.12092] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2018] [Revised: 08/23/2018] [Accepted: 09/19/2018] [Indexed: 11/11/2022]
Abstract
The utilization of vegetable oils in salmonid diets substantially decreased the body content of omega-3 long-chain polyunsaturated fatty acids (n-3 LC-PUFA), and thus the product quality for human consumption. Therefore, new ingredients for aquaculture feeds are needed that maximize the deposition of health-promoting n-3 LC-PUFA. This study investigated Buglossoides arvensis (Ahiflower) oil, a plant oil rich in alpha-linolenic acid (18:3n-3, ALA) and stearidonic acid (18:4n-3, SDA), as a source of n-3 fatty acids in rainbow trout (Oncorhynchus mykiss) nutrition. Rainbow trout (87.4 ± 0.6 g) were fed for 56 days. The oils of the control diet (FV) were substituted by Ahiflower oil at 33%, 66%, and 100% (A33, A66, A100). Dietary Ahiflower oil increased the final body weights of fish. mRNA steady state levels of fatty acyl desaturase 2a (delta-6) (fads2a(d6)) and 2b (delta-5) (fads2b(d5)) as well as carnitine palmitoyl transferase 1 a (cpt1a) were not altered by dietary treatments. In contrast, cpt1c mRNA steady state levels were significantly downregulated in samples of fish fed A66 and A100. Significantly higher eicosapentaenoic acid (20:5n-3, EPA) and docosahexaenoic acid (22:6n-3, DHA) levels were found in the liver and significantly higher EPA levels in the fillet of rainbow trout of A66 and A100 compared to FV. The content of DHA in fillets of fish fed Ahiflower oil was not significantly different to fish fed FV. Thus, high dietary amounts of Ahiflower oil can compensate for reduced dietary EPA and DHA levels.
Collapse
Affiliation(s)
- Anna Fickler
- GMA-Gesellschaft für Marine Aquakultur mbH, Hafentörn 3, 25761, Büsum, Germany.,Institute of Animal Breeding and Husbandry, Kiel University, Hermann-Rodewald-Str. 6, 24118, Kiel, Germany
| | - Stefanie Staats
- Institute of Human Nutrition and Food Science, Hermann-Rodewald-Str. 6, Kiel University, 24118, Kiel, Germany
| | - Mario Hasler
- Lehrfach Variationsstatistik, Kiel University, Hermann- Rodewald-Str. 9, 24118, Kiel, Germany
| | - Gerald Rimbach
- Institute of Human Nutrition and Food Science, Hermann-Rodewald-Str. 6, Kiel University, 24118, Kiel, Germany
| | - Carsten Schulz
- GMA-Gesellschaft für Marine Aquakultur mbH, Hafentörn 3, 25761, Büsum, Germany.,Institute of Animal Breeding and Husbandry, Kiel University, Hermann-Rodewald-Str. 6, 24118, Kiel, Germany
| |
Collapse
|
50
|
Torno C, Staats S, Michl SC, de Pascual-Teresa S, Izquierdo M, Rimbach G, Schulz C. Fatty Acid Composition and Fatty Acid Associated Gene-Expression in Gilthead Sea Bream ( Sparus aurata) are Affected by Low-Fish Oil Diets, Dietary Resveratrol, and Holding Temperature. Mar Drugs 2018; 16:E379. [PMID: 30309000 PMCID: PMC6213562 DOI: 10.3390/md16100379] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2018] [Revised: 10/03/2018] [Accepted: 10/05/2018] [Indexed: 12/15/2022] Open
Abstract
To sustainably produce marine fish with a high lipid quality rich in omega-3 fatty acids, alternative sources of eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) are being identified. Moreover, the use of bioactive compounds that would stimulate the in vivo fatty acid synthesis, such as resveratrol (RV), would reduce the dependence on fish oil in aquafeeds. Gilthead sea bream (Sparus aurata) were fed four experimental diets combining two fish oil levels (6% dry matter (DM); 2% DM) with or without 0.15% DM resveratrol supplementation (F6, F2, F6 + RV, F2 + RV) for two months. Additionally, the fish were challenged either at 19 °C or 23 °C. A higher water temperature promoted their feed intake and growth, resulting in an increased crude lipid content irrespective of dietary treatment. The fatty acid composition of different tissues was significantly affected by the holding temperature and dietary fish oil level. The dietary RV significantly affected the hepatic EPA and DHA content of fish held at 19 °C. The observed effect of RV may be partly explained by alterations of the mRNA steady-state levels of ∆6-desaturase and β-oxidation-related genes. Besides the relevant results concerning RV-mediated regulation of fatty acid synthesis in marine fish, further studies need to be conducted to clarify the potential value of RV to enhance fillet lipid quality.
Collapse
Affiliation(s)
- Claudia Torno
- GMA⁻Gesellschaft für Marine Aquakultur mbH, Hafentörn 3, 25761 Büsum, Germany.
- Institute of Animal Breeding and Husbandry, University of Kiel, Olshausenstraße 40, 24098 Kiel, Germany.
| | - Stefanie Staats
- Institute of Human Nutrition and Food Science, University of Kiel, Hermann Rodewald Straße 6, 24118 Kiel, Germany.
| | - Stéphanie Céline Michl
- GMA⁻Gesellschaft für Marine Aquakultur mbH, Hafentörn 3, 25761 Büsum, Germany.
- Institute of Animal Breeding and Husbandry, University of Kiel, Olshausenstraße 40, 24098 Kiel, Germany.
| | - Sonia de Pascual-Teresa
- Department of Metabolism and Nutrition, Institute of Food Science, Food Technology and Nutrition (ICTAN⁻CSIC), José Antonio Novais 10, 28040 Madrid, Spain.
| | - Marisol Izquierdo
- Grupo de Investigación en Acuicultura (GIA), Instituto Universitario Ecoaqua, Universidad de Las Palmas de Gran Canaria, Crta. Taliarte s/n, 35214 Telde, Las Palmas, Canary Islands, Spain.
| | - Gerald Rimbach
- Institute of Human Nutrition and Food Science, University of Kiel, Hermann Rodewald Straße 6, 24118 Kiel, Germany.
| | - Carsten Schulz
- GMA⁻Gesellschaft für Marine Aquakultur mbH, Hafentörn 3, 25761 Büsum, Germany.
- Institute of Animal Breeding and Husbandry, University of Kiel, Olshausenstraße 40, 24098 Kiel, Germany.
| |
Collapse
|