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Muñoz-Jurado A, Escribano BM. Presence of melatonin in foods of daily consumption: The benefit of this hormone for health. Food Chem 2024; 458:140172. [PMID: 38943958 DOI: 10.1016/j.foodchem.2024.140172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2024] [Revised: 06/18/2024] [Accepted: 06/19/2024] [Indexed: 07/01/2024]
Abstract
Melatonin (MLT) is a hormone that exists in all living organisms, including bacteria, yeast, fungi, animals, and plants, many of which are ingested daily in the diet. However, the exact concentrations of melatonin in each of the foods and the effect on health of the intake of foods rich in MLT are not known. Therefore, the aim of this review was to gather the available information on the melatonin content of different foods and to evaluate the effect that this hormone has on different pathologies. The amount of MLT may vary depending on the variety, origin, heat treatment, processing, and analysis technique, among other factors. Dietary interventions with foods rich in MLT report health benefits, but there is no evidence that hormone is partially responsible for the clinical improvement. Therefore, it is necessary to evaluate the MLT content in more foods, as well as the effect that cooking/processing has on the amount of MLT, to estimate its total intake in a typical diet and better explore its potential impact on the health.
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Affiliation(s)
- Ana Muñoz-Jurado
- Department of Cell Biology, Physiology and Immunology, Faculty of Veterinary Medicine, University of Cordoba, Spain.; Maimonides Institute for Research in Biomedicine of Cordoba, (IMIBIC), Cordoba, Spain..
| | - Begoña M Escribano
- Department of Cell Biology, Physiology and Immunology, Faculty of Veterinary Medicine, University of Cordoba, Spain.; Maimonides Institute for Research in Biomedicine of Cordoba, (IMIBIC), Cordoba, Spain..
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2
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Barnard J, Roberts S, Kelly M, Lastella M, Aisbett B, Condo D. Alpha-lactalbumin and sleep: A systematic review. J Sleep Res 2024; 33:e14141. [PMID: 38185736 DOI: 10.1111/jsr.14141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 12/17/2023] [Accepted: 12/19/2023] [Indexed: 01/09/2024]
Abstract
Insufficient sleep is a growing global problem, with poor sleep associated with many negative health and performance outcomes. Previous reviews investigating the effect of diet on sleep have highlighted the amino acid tryptophan as a promising sleep-promoting nutrient, with the richest food source of tryptophan, ⍺-lactalbumin, requiring further investigation. Therefore, this systematic review aimed to review the existing evidence of association between ⍺-lactalbumin and sleep. Four electronic databases (CINAHL Complete, Embase, MEDLINE Complete, and SPORTDiscus with Full Text) were searched from database inception to March 2023, with primary research articles included if they contained α-lactalbumin as an independent variable, an outcome measure of sleep or sleepiness, and participants were ≥ 18 years old. Eight studies were reviewed, with four studies recruiting athletic populations (50%) and four recruiting healthy participants (50%). Sleep or sleepiness was measured objectively in six studies (75%), with two studies employing polysomnography and four utilizing actigraphy to assess sleep. Across the studies, 20-60 g of ⍺-lactalbumin was supplemented, with five studies (63%) observing a positive association between α-lactalbumin and sleep. Sleep-onset latency was the primary sleep metric improved following evening supplementation of α-lactalbumin (≤ 3.5 hr pre-sleep), with no studies observing any negative associations with sleep. Data from this review suggest that individuals that have difficulty initiating sleep may benefit most from pre-sleep α-lactalbumin supplementation. Further research is required to establish the effect that α-lactalbumin has on sleep architecture, through the use of more comprehensive sleep analysis tools such as portable electroencephalography or polysomnography, in combination with stringent dietary controls.
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Affiliation(s)
- Jackson Barnard
- Centre for Sport Research (CSR), Deakin University, Burwood, Australia
| | - Spencer Roberts
- Centre for Sport Research (CSR), Deakin University, Burwood, Australia
| | - Monica Kelly
- Centre for Sport Research (CSR), Deakin University, Burwood, Australia
| | - Michele Lastella
- Appleton Institute for Behavioural Science, CQUniversity, Wayville, Australia
| | - Brad Aisbett
- Institute for Physical Activity and Nutrition (IPAN), School of Exercise and Nutrition Sciences, Deakin University, Geelong, Australia
| | - Dominique Condo
- Centre for Sport Research (CSR), Deakin University, Burwood, Australia
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Blank-Landeshammer B, Schwarzinger B, Arnaut V, Gramatte T, Drotarova I, Feichtinger M, Röhrl C, Weghuber J. Targeted and untargeted screening of a plant extract library established from raw materials originating from Upper Austria. Food Chem 2024; 451:139419. [PMID: 38677134 DOI: 10.1016/j.foodchem.2024.139419] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Revised: 04/12/2024] [Accepted: 04/17/2024] [Indexed: 04/29/2024]
Abstract
Plant extracts rich in phytochemicals are known for their health benefits. Plant extract library from edible plants obtained from the region of Upper Austria was prepared. Food grade extraction procedures were applied, and relevant physico-chemical parameters measured. A focus on polyphenolic compounds revealed a significant correlation between the total phenolic content (measured by a colorimetric assay) and the cumulated concentration of main individual polyphenols (measured by HPLC-DAD), demonstrating the comparability of these parameters. Targeted screening was performed by HPLC-FLD and -MS for the presence of phytomelatonin. 20 extracts were identified with concentrations of up to 1.4 µg/mL of this phytochemical, which attracts much attention from the food industry. Finally, chemometric methods were employed to cluster extracts based on their phenolic compound profile. This approach allows for an informed preselection of extracts without the need for comprehensive chemical analysis.
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Affiliation(s)
- Bernhard Blank-Landeshammer
- University of Applied Sciences Upper Austria, Center of Excellence Food Technology and Nutrition, Stelzhamerstraße 23, Wels 4600, Austria; FFoQSI GmbH - Austrian Competence Centre for Feed and Food Quality, Safety and Innovation, Technopark 1D, Tulln 3430, Austria.
| | - Bettina Schwarzinger
- University of Applied Sciences Upper Austria, Center of Excellence Food Technology and Nutrition, Stelzhamerstraße 23, Wels 4600, Austria; FFoQSI GmbH - Austrian Competence Centre for Feed and Food Quality, Safety and Innovation, Technopark 1D, Tulln 3430, Austria.
| | - Verena Arnaut
- University of Applied Sciences Upper Austria, Center of Excellence Food Technology and Nutrition, Stelzhamerstraße 23, Wels 4600, Austria.
| | - Theresa Gramatte
- University of Applied Sciences Upper Austria, Center of Excellence Food Technology and Nutrition, Stelzhamerstraße 23, Wels 4600, Austria.
| | - Ivana Drotarova
- University of Applied Sciences Upper Austria, Center of Excellence Food Technology and Nutrition, Stelzhamerstraße 23, Wels 4600, Austria.
| | - Michaela Feichtinger
- University of Applied Sciences Upper Austria, Center of Excellence Food Technology and Nutrition, Stelzhamerstraße 23, Wels 4600, Austria.
| | - Clemens Röhrl
- University of Applied Sciences Upper Austria, Center of Excellence Food Technology and Nutrition, Stelzhamerstraße 23, Wels 4600, Austria.
| | - Julian Weghuber
- University of Applied Sciences Upper Austria, Center of Excellence Food Technology and Nutrition, Stelzhamerstraße 23, Wels 4600, Austria; FFoQSI GmbH - Austrian Competence Centre for Feed and Food Quality, Safety and Innovation, Technopark 1D, Tulln 3430, Austria.
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4
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Polasek D, Santhi N, Alfonso-Miller P, Walshe IH, Haskell-Ramsay CF, Elder GJ. Nutritional interventions in treating menopause-related sleep disturbances: a systematic review. Nutr Rev 2024; 82:1087-1110. [PMID: 37695299 PMCID: PMC11233886 DOI: 10.1093/nutrit/nuad113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/12/2023] Open
Abstract
CONTEXT Sleep disturbances are a core symptom of menopause, which refers to the permanent cessation of menstrual periods. Nutritional interventions may alleviate menopause-related sleep disturbances, as studies have shown that certain interventions (eg, tart cherry juice, or tryptophan-rich foods) can improve relevant aspects of sleep. OBJECTIVE The aim of this systematic review was to examine the effect of nutritional interventions for menopause-related sleep disturbances, in order to inform the subsequent development of specific interventional trials and assess their potential as a treatment for menopause-related sleep disturbances. DATA SOURCES Published studies in English were located by searching PubMed and PsycArticles databases (until September 15, 2022). DATA EXTRACTION Following full-text review, a final total of 59 articles were included. The search protocol was performed in accordance with PRISMA guidelines. DATA ANALYSIS A total of 37 studies reported that a nutritional intervention improved some aspect of sleep, and 22 studies observed no benefit. Most (n = 24) studies recruited postmenopausal women, 18 recruited menopausal women, 3 recruited perimenopausal women, and 14 recruited women from multiple groups. The majority of the studies were of low methodological quality. Due to the heterogeneity of the studies, a narrative synthesis without meta-analysis is reported. CONCLUSION Despite the large heterogeneity in the studies and choice of intervention, the majority of the identified studies reported that a nutritional intervention did benefit sleep, and that it is mainly subjective sleep that is improved. More high-quality, adequately powered, randomized controlled trials of the identified nutritional interventions are necessary. SYSTEMATIC REVIEW REGISTRATION PROSPERO registration no. CRD42021262367.
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Affiliation(s)
- Dominik Polasek
- Northumbria Sleep Research, Northumbria University, Newcastle upon Tyne, UK
| | - Nayantara Santhi
- Northumbria Sleep Research, Northumbria University, Newcastle upon Tyne, UK
| | | | - Ian H Walshe
- Department of Sport, Exercise and Rehabilitation, Northumbria University, Newcastle, UK
| | - Crystal F Haskell-Ramsay
- Department of Psychology, Faculty of Health and Life Sciences, Northumbria University, Newcastle upon Tyne, UK
| | - Greg J Elder
- Northumbria Sleep Research, Northumbria University, Newcastle upon Tyne, UK
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5
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Yeom JW, Cho CH. Herbal and Natural Supplements for Improving Sleep: A Literature Review. Psychiatry Investig 2024; 21:810-821. [PMID: 39086164 PMCID: PMC11321869 DOI: 10.30773/pi.2024.0121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/08/2024] [Accepted: 05/30/2024] [Indexed: 08/02/2024] Open
Abstract
OBJECTIVE Herbal and natural supplements have gained popularity as alternative treatments to insomnia and sleep disorders due to their perceived safety and potential effectiveness. This literature review summarizes the current evidence on the efficacy, safety, and mechanisms of action of commonly used supplements for sleep, including valerian, hops, kava, German chamomile, cherry, tryptophan, theanine, melatonin, magnesium, and zinc. METHODS We conducted literature review of clinical research on herbal and supplements for sleep reported to date. We summarized key findings and reviewed outcomes related to clinical efficacy and side effects. RESULTS Findings suggest that certain supplements, particularly valerian, hops, and melatonin, could be effective in improving sleep quality and reducing insomnia symptoms through modulation of neurotransmitter systems and regulation of sleep-wake cycles. However, the strength of the evidence varies with unestablished optimal dosages, formulations, and treatment durations. Although generally considered safe, these supplements are not without risks, such as rare but serious adverse effects associated with kava and potential interactions with prescription medications. The quality and purity of supplements also vary widely due to a lack of strict regulations. CONCLUSION Healthcare providers should remain informed about the latest research and work closely with patients to develop personalized treatment plans. Herbal and natural supplements may offer promising alternatives or adjunct treatments for insomnia and sleep disorders, but their use should be guided by the best available evidence and individual patient requirements. Larger, well-designed clinical trials are needed to establish the efficacy and safety of these supplements for clinical decision-making.
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Affiliation(s)
- Ji Won Yeom
- Department of Psychiatry, Korea University College of Medicine, Seoul, Republic of Korea
| | - Chul-Hyun Cho
- Department of Psychiatry, Korea University College of Medicine, Seoul, Republic of Korea
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Asplund CA. The Importance of Sleep for Health and Athletic Performance. Sports Health 2024; 16:499-500. [PMID: 38900136 PMCID: PMC11195859 DOI: 10.1177/19417381241257952] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/21/2024] Open
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Squires E, Walshe IH, Cheung W, Bowerbank SL, Dean JR, Wood J, McHugh MP, Plattner S, Howatson G. Plasma-Induced Changes in the Metabolome Following Vistula Tart Cherry Consumption. Nutrients 2024; 16:1023. [PMID: 38613057 PMCID: PMC11013268 DOI: 10.3390/nu16071023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2024] [Revised: 03/25/2024] [Accepted: 03/26/2024] [Indexed: 04/14/2024] Open
Abstract
Evidence suggests that tart cherry (TC) supplementation has beneficial effects on health indices and recovery following strenuous exercise. However, little is known about the mechanisms and how TC might modulate the human metabolome. The aim of this study was to evaluate the influence of an acute high- and low-dose of Vistula TC supplementation on the metabolomic profile in humans. In a randomised, double-blind, placebo controlled, cross-over design, 12 healthy participants (nine male and three female; mean ± SD age, stature, and mass were 29 ± 7 years old, 1.75 ± 0.1 m, and 77.3 ± 10.5 kg, respectively) visited the laboratory on three separate occasions (high dose; HI, low dose; LO, or placebo), separated by at least seven days. After an overnight fast, a baseline venous blood sample was taken, followed by consumption of a standardised breakfast and dose conditions (HI, LO, or placebo). Subsequent blood draws were taken 1, 2, 3, 5, and 8 h post consumption. Following sample preparation, an untargeted metabolomics approach was adopted, and the extracts analysed by LCMS/MS. When all time points were collated, a principal component analysis showed a significant difference between the conditions (p < 0.05), such that the placebo trial had homogeneity, and HI showed greater heterogeneity. In a sub-group analysis, cyanidine-3-O-glucoside (C3G), cyanidine-3-O-rutinoside (C3R), and vanillic acid (VA) were detected in plasma and showed significant differences (p < 0.05) following acute consumption of Vistula TC, compared to the placebo group. These results provide evidence that phenolics are bioavailable in plasma and induce shifts in the metabolome following acute Vistula TC consumption. These data could be used to inform future intervention studies where changes in physiological outcomes could be influenced by metabolomic shifts following acute supplementation.
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Affiliation(s)
- Emma Squires
- Faculty of Health and Life Sciences, Northumbria University, Newcastle upon Tyne NE1 8ST, UK; (E.S.); (I.H.W.); (W.C.); (S.L.B.); (J.R.D.); (J.W.); (M.P.M.)
| | - Ian H. Walshe
- Faculty of Health and Life Sciences, Northumbria University, Newcastle upon Tyne NE1 8ST, UK; (E.S.); (I.H.W.); (W.C.); (S.L.B.); (J.R.D.); (J.W.); (M.P.M.)
| | - William Cheung
- Faculty of Health and Life Sciences, Northumbria University, Newcastle upon Tyne NE1 8ST, UK; (E.S.); (I.H.W.); (W.C.); (S.L.B.); (J.R.D.); (J.W.); (M.P.M.)
| | - Samantha L. Bowerbank
- Faculty of Health and Life Sciences, Northumbria University, Newcastle upon Tyne NE1 8ST, UK; (E.S.); (I.H.W.); (W.C.); (S.L.B.); (J.R.D.); (J.W.); (M.P.M.)
| | - John R. Dean
- Faculty of Health and Life Sciences, Northumbria University, Newcastle upon Tyne NE1 8ST, UK; (E.S.); (I.H.W.); (W.C.); (S.L.B.); (J.R.D.); (J.W.); (M.P.M.)
| | - Jacob Wood
- Faculty of Health and Life Sciences, Northumbria University, Newcastle upon Tyne NE1 8ST, UK; (E.S.); (I.H.W.); (W.C.); (S.L.B.); (J.R.D.); (J.W.); (M.P.M.)
| | - Malachy P. McHugh
- Faculty of Health and Life Sciences, Northumbria University, Newcastle upon Tyne NE1 8ST, UK; (E.S.); (I.H.W.); (W.C.); (S.L.B.); (J.R.D.); (J.W.); (M.P.M.)
- Nicholas Institute of Sports Medicine and Athletic Trauma, Northwell Health, New York, NY 10065, USA
| | | | - Glyn Howatson
- Faculty of Health and Life Sciences, Northumbria University, Newcastle upon Tyne NE1 8ST, UK; (E.S.); (I.H.W.); (W.C.); (S.L.B.); (J.R.D.); (J.W.); (M.P.M.)
- Water Research Group, North West University, Potchefstroom 2531, South Africa
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Rrucaj E, Carpentieri S, Scognamiglio M, Siano F, Ferrari G, Pataro G. Sustainable Valorization of Industrial Cherry Pomace: A Novel Cascade Approach Using Pulsed Electric Fields and Ultrasound Assisted-Extraction. Foods 2024; 13:1043. [PMID: 38611349 PMCID: PMC11012044 DOI: 10.3390/foods13071043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2024] [Revised: 03/15/2024] [Accepted: 03/26/2024] [Indexed: 04/14/2024] Open
Abstract
In this study, a two-stage cascade extraction process utilizing pulsed electric fields (PEF) (3 kV/cm, 10 kJ/kg) for initial extraction, followed by ultrasound (US) (200 W, 20 min)-assisted extraction (UAE) in a 50% (v/v) ethanol-water mixture (T = 50 °C, t = 60 min), was designed for the efficient release of valuable intracellular compounds from industrial cherry pomace. The extracted compounds were evaluated for total phenolic content (TPC), flavonoid content (FC), total anthocyanin content (TAC), and antioxidant activity (FRAP), and were compared with conventional solid-liquid extraction (SLE). Results showed that the highest release of bioactive compounds occurred in the first stage, which was attributed to the impact of PEF pre-treatment, resulting in significant increases in TPC (79%), FC (79%), TAC (83%), and FRAP values (80%) of the total content observed in the post-cascade PEF-UAE process. The integration of UAE into the cascade process further augmented the extraction efficiency, yielding 21%, 49%, 56%, and 26% increases for TPC, FC, TAC, and FRAP, respectively, as compared to extracts obtained through a second-stage conventional SLE. HPLC analysis identified neochlorogenic acid, 4-p-coumaroylquinic, and cyanidin-3-O-rutinoside as the predominant phenolic compounds in both untreated and cascade-treated cherry pomace extracts, and no degradation of the specific compounds occurred upon PEF and US application. SEM analysis revealed microstructural changes in cherry pomace induced by PEF and UAE treatments, enhancing the porosity and facilitating the extraction process. The study suggests the efficiency of the proposed cascade PEF-UAE extraction approach for phenolic compounds from industrial cherry pomace with potential applications to other plant-based biomasses.
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Affiliation(s)
- Ervehe Rrucaj
- Department of Industrial Engineering, University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, SA, Italy (S.C.); (M.S.); (G.F.)
- ProdAl Scarl, University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, SA, Italy
| | - Serena Carpentieri
- Department of Industrial Engineering, University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, SA, Italy (S.C.); (M.S.); (G.F.)
| | - Mariarosa Scognamiglio
- Department of Industrial Engineering, University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, SA, Italy (S.C.); (M.S.); (G.F.)
| | - Francesco Siano
- Institute of Food Science, National Research Council (CNR), Via Roma 64, 83100 Avellino, AV, Italy;
| | - Giovanna Ferrari
- Department of Industrial Engineering, University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, SA, Italy (S.C.); (M.S.); (G.F.)
- ProdAl Scarl, University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, SA, Italy
| | - Gianpiero Pataro
- Department of Industrial Engineering, University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, SA, Italy (S.C.); (M.S.); (G.F.)
- ProdAl Scarl, University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, SA, Italy
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9
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Vlahoyiannis A, Andreou E, Bargiotas P, Aphamis G, Sakkas GK, Giannaki CD. The effect of chrono-nutritional manipulation of carbohydrate intake on sleep macrostructure: A randomized controlled trial. Clin Nutr 2024; 43:858-868. [PMID: 38367595 DOI: 10.1016/j.clnu.2024.02.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2023] [Revised: 01/08/2024] [Accepted: 02/13/2024] [Indexed: 02/19/2024]
Abstract
BACKGROUND & AIMS Over the years, there is a rapid increase in the prevalence of inadequate sleep and its detrimental consequences. Yet, the impact of prolonged nutritional interventions on sleep optimization remains unexplored. To examine the effect of carbohydrate manipulation combined with exercise training on sleep macro-structure. METHODS Forty-two healthy, trained male volunteers were recruited for this study. The 4-week intervention consisted of three groups: i) Sleep Low-No Carbohydrates (SL-NCHO): participants consumed all their carbohydrate intake at regular intervals prior to evening training, ii) Sleep High-Low Glycemic Index (SH-LGI) and iii) Sleep High-High Glycemic Index (SH-HGI): Carbohydrate intake was spread throughout the day, both prior (60% of total CHO intake) and after evening training (40% of total CHO intake). The SH-LGI and SH-HGI groups differentiated by consuming either LGI or HGI foods in the evening, respectively. Alongside, participants performed a standardized exercise program combining resistance exercise and high-intensity interval training. Participants' sleep macro-structure was assessed with polysomnography, actigraphy, sleep diary, and sleep-wake questionnaires. RESULTS Objective assessments revealed a substantial time-effect on sleep initiation, duration, and continuity. After the intervention, sleep onset latency decreased (p < 0.001), sleep duration was prolonged (p = 0.006), sleep efficiency increased (p < 0.001), and wake after sleep onset decreased (p = 0.035). Sleep macroarchitecture did not significantly change, while the percentage of REM sleep stage to the total sleep time increased over time (p < 0.01). Consistent with the objective findings, subjects reported improved subjective sleep quality (p = 0.043) and reduced daytime sleepiness (p = 0.047). CONCLUSION The combination of a personalized dietary plan with exercise training enhances sleep initiation, sleep continuity, sleep duration, REM and N1 sleep stages, independently of carbohydrate type or timing. Lifestyle interventions should be investigated further to promote sleep quality and recovery. REGISTRATION The trial was registered at clinicaltrials.gov as NCT05464342.
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Affiliation(s)
- Angelos Vlahoyiannis
- Department of Life Sciences, University of Nicosia, Nicosia, Cyprus; Research Centre for Exercise and Nutrition (RECEN), University of Nicosia, Nicosia, Cyprus
| | - Eleni Andreou
- Department of Life Sciences, University of Nicosia, Nicosia, Cyprus; Research Centre for Exercise and Nutrition (RECEN), University of Nicosia, Nicosia, Cyprus
| | | | - George Aphamis
- Department of Life Sciences, University of Nicosia, Nicosia, Cyprus; Research Centre for Exercise and Nutrition (RECEN), University of Nicosia, Nicosia, Cyprus
| | - Giorgos K Sakkas
- Department of Physical Education and Sport Science, University of Thessaly, Trikala, Greece
| | - Christoforos D Giannaki
- Department of Life Sciences, University of Nicosia, Nicosia, Cyprus; Research Centre for Exercise and Nutrition (RECEN), University of Nicosia, Nicosia, Cyprus.
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10
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Thomas C, Kingshott RN, Allott KM, Tang JCY, Dunn R, Fraser WD, Thorley J, Virgilio N, Prawitt J, Hogervorst E, Škarabot J, Clifford T. Collagen peptide supplementation before bedtime reduces sleep fragmentation and improves cognitive function in physically active males with sleep complaints. Eur J Nutr 2024; 63:323-335. [PMID: 37874350 PMCID: PMC10799148 DOI: 10.1007/s00394-023-03267-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Accepted: 10/03/2023] [Indexed: 10/25/2023]
Abstract
PURPOSE The primary aim of this study was to examine whether a glycine-rich collagen peptides (CP) supplement could enhance sleep quality in physically active men with self-reported sleep complaints. METHODS In a randomized, crossover design, 13 athletic males (age: 24 ± 4 years; training volume; 7 ± 3 h·wk1) with sleep complaints (Athens Insomnia Scale, 9 ± 2) consumed CP (15 g·day1) or a placebo control (CON) 1 h before bedtime for 7 nights. Sleep quality was measured with subjective sleep diaries and actigraphy for 7 nights; polysomnographic sleep and core temperature were recorded on night 7. Cognition, inflammation, and endocrine function were measured on night 7 and the following morning. Subjective sleepiness and fatigue were measured on all 7 nights. The intervention trials were separated by ≥ 7 days and preceded by a 7-night familiarisation trial. RESULTS Polysomnography showed less awakenings with CP than CON (21.3 ± 9.7 vs. 29.3 ± 13.8 counts, respectively; P = 0.028). The 7-day average for subjective awakenings were less with CP vs. CON (1.3 ± 1.5 vs. 1.9 ± 0.6 counts, respectively; P = 0.023). The proportion of correct responses on the baseline Stroop cognitive test were higher with CP than CON (1.00 ± 0.00 vs. 0.97 ± 0.05 AU, respectively; P = 0.009) the morning after night 7. There were no trial differences in core temperature, endocrine function, inflammation, subjective sleepiness, fatigue and sleep quality, or other measures of cognitive function or sleep (P > 0.05). CONCLUSION CP supplementation did not influence sleep quantity, latency, or efficiency, but reduced awakenings and improved cognitive function in physically active males with sleep complaints.
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Affiliation(s)
- Craig Thomas
- School of Sport, Exercise and Health Sciences, Loughborough University, Loughborough, Leicestershire, LE11 3TU, UK
| | - Ruth N Kingshott
- Sheffield Children's NHS Foundation Trust, The Sleep House, Sheffield, UK
| | - Kirsty M Allott
- Sheffield Children's NHS Foundation Trust, The Sleep House, Sheffield, UK
| | - Jonathan C Y Tang
- Bioanalytical Facility, Norwich Medical School, University of East Anglia, Norfolk and Norwich University Hospital Norfolk, Norwich, UK
- Clinical Biochemistry, Departments of Laboratory Medicine and Departments of Diabetes and Endocrinology Norfolk, Norwich University Hospital NHS Foundation Trust, Norwich, UK
| | - Rachel Dunn
- Bioanalytical Facility, Norwich Medical School, University of East Anglia, Norfolk and Norwich University Hospital Norfolk, Norwich, UK
- Clinical Biochemistry, Departments of Laboratory Medicine and Departments of Diabetes and Endocrinology Norfolk, Norwich University Hospital NHS Foundation Trust, Norwich, UK
| | - William D Fraser
- Bioanalytical Facility, Norwich Medical School, University of East Anglia, Norfolk and Norwich University Hospital Norfolk, Norwich, UK
- Clinical Biochemistry, Departments of Laboratory Medicine and Departments of Diabetes and Endocrinology Norfolk, Norwich University Hospital NHS Foundation Trust, Norwich, UK
| | - Josh Thorley
- School of Sport, Exercise and Health Sciences, Loughborough University, Loughborough, Leicestershire, LE11 3TU, UK
| | | | | | - Eef Hogervorst
- School of Sport, Exercise and Health Sciences, Loughborough University, Loughborough, Leicestershire, LE11 3TU, UK
| | - Jakob Škarabot
- School of Sport, Exercise and Health Sciences, Loughborough University, Loughborough, Leicestershire, LE11 3TU, UK
| | - Tom Clifford
- School of Sport, Exercise and Health Sciences, Loughborough University, Loughborough, Leicestershire, LE11 3TU, UK.
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11
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Nieman KM, Zhu Y, Tucker M, Koecher K. The Role of Dietary Ingredients in Mental Energy - A Scoping Review of Randomized Controlled Trials. JOURNAL OF THE AMERICAN NUTRITION ASSOCIATION 2024; 43:167-182. [PMID: 37561965 DOI: 10.1080/27697061.2023.2244031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Revised: 06/09/2023] [Accepted: 07/30/2023] [Indexed: 08/12/2023]
Abstract
Low mental energy can contribute to decreased productivity, altered life balance, decreased physical performance, and ultimately affect quality of life. As such, there is a great demand for food and beverage products that positively impact mental energy. Numerous products claim to alter mental energy making continued review of the scientific evidence critical. The objective of this study was to conduct a scoping review of randomized controlled trials to evaluate the effect of 18 dietary ingredients on mental energy outcomes in adults without severe disease. Methods: A literature search, completed using PubMed, resulted in the identification of 2261 articles, 190 of which met eligibility from initial abstract review. Full-text review was completed on the 190 studies which resulted in 101 articles that fully met eligibility for inclusion in this study. The search strategy for two ingredients did not yield any eligible studies, leaving studies for 16 ingredients that were extracted and summarized by reported significantly improved outcomes for cognition, mood and perceived feelings, and sleep assessments. The preliminary results for several dietary ingredients directionally suggested a mental energy benefit (≥20% of outcomes), including ashwagandha, chamomile, dark chocolate, ginseng, green tea, lavender, lion's mane mushroom, maca, tart cherries, turmeric, and valerian root. The results of this scoping review suggest that of the 16 dietary ingredients reviewed, 11 may be promising for further exploration on their potential benefits in supporting mental energy. Given consumer demand and market growth for food and beverage products that positively impact mental energy; continued efforts in assessment method alignment and additional evaluation in well-designed trials is warranted.KEY TEACHING POINTSOf the 16 dietary ingredients reviewed, 11 (ashwagandha, chamomile, dark chocolate, ginseng, green tea, lavender, lion's mane mushroom, maca, melatonin foods, turmeric, and valerian root) may be promising for further exploration on their potential mental energy benefits.Dark chocolate, ginseng, ashwagandha, and lion's mane mushroom were the most promising ingredients for further evaluation in the cognition domain of the ingredients evaluated.Turmeric, maca, lavendar, and ashwagandha were the most promising ingredients for further evaluation in the mood and perceived feelings domain of the ingredients evaluated.Ashwagandha, chamomile, green tea, melatonin foods, valerian root were the most promising ingredients for further evaluation in the sleep domain of the ingredients evaluated.Additional, well-designed, consistent, clinical trials and systematic reviews are warranted as the challenge of heterogeneity in mental energy study design remains.
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Affiliation(s)
| | - Yong Zhu
- Bell Institute of Health and Nutrition, General Mills, Inc, Minneapolis, Minnesota, USA
| | - Michelle Tucker
- Bell Institute of Health and Nutrition, General Mills, Inc, Minneapolis, Minnesota, USA
| | - Katie Koecher
- Bell Institute of Health and Nutrition, General Mills, Inc, Minneapolis, Minnesota, USA
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12
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Mohan ME, Mohan MC, Prabhakaran P, Syam Das S, Krishnakumar IM, Baby Chakrapani PS. Exploring the short-term influence of a proprietary oil extract of black cumin ( Nigella sativa) on non-restorative sleep: a randomized, double-blinded, placebo-controlled actigraphy study. Front Nutr 2024; 10:1200118. [PMID: 38288065 PMCID: PMC10822901 DOI: 10.3389/fnut.2023.1200118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Accepted: 12/27/2023] [Indexed: 01/31/2024] Open
Abstract
Background Nigella sativa (black cumin, or black seed) is popularly known as the seed of blessings in the Arab system of medicine. Though not widely recommended for sleep, a unique proprietary black cumin extract (BlaQmax®/ThymoDream™; BCO-5) has been shown to be helpful in the management of stress and sleep issues. Methods This randomized, double-blind, placebo-controlled trial aimed to investigate the efficacy of BCO-5 on the sleep quality of volunteers characterized with a self-reported non-restorative sleep disorder. Healthy male and female participants (n = 70), aged 18-65 years (BMI 22-28 Kg/m2) were randomized to either placebo or BCO-5 (n = 35/group). Both interventions were supplemented at 200 mg/day for seven days. Actigraphy and a validated restorative sleep questionnaire (RSQ-W) were used to monitor the influence of BCO-5 on sleep. Results Compared to placebo, BCO-5 significantly improved sleep quality, as evidenced by both intra-group and inter-group analyses of the actigraphy data. The relative improvements observed were sleep efficiency (7.8%, p < 0.001), total sleep time (19.1%, p < 0.001), sleep onset latency (35.4%; p < 0.001), and wake-after-sleep-onset (22.5%; p < 0.001) compared with placebo. BCO-5 also improved sleep by 75.3% compared to baseline (p < 0.001) and by 68.9% compared to placebo (p < 0.001), when monitored by RSQ-W. BCO-5 was well-tolerated with no reports of side effects or toxicity. Conclusion BCO-5 significantly improved non-restorative sleep in seven days, indicating its potential role as a natural sleep aid.
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Affiliation(s)
- M. E. Mohan
- Department of General Medicine, BGS Global Institute of Medical Sciences, Kengeri, India
| | - Mohind C. Mohan
- Centre for Neuroscience, Cochin University of Science and Technology, Cochin, Kerala, India
- Department of Biotechnology, Cochin University of Science and Technology, Cochin, Kerala, India
| | | | - S. Syam Das
- R&D Centre, Akay Natural Ingredients, Cochin, Kerala, India
| | | | - P. S. Baby Chakrapani
- Centre for Neuroscience, Cochin University of Science and Technology, Cochin, Kerala, India
- Department of Biotechnology, Cochin University of Science and Technology, Cochin, Kerala, India
- Centre of Excellence in Neurodegeneration and Brain Health, Cochin, Kerala, India
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13
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Norouzzadeh M, Hasan Rashedi M, Shahinfar H, Rahideh ST. Dose-dependent effect of tart cherry on blood pressure and selected inflammation biomarkers: A GRADE-assessed systematic review and meta-analysis of randomized controlled trials. Heliyon 2023; 9:e19987. [PMID: 37809623 PMCID: PMC10559679 DOI: 10.1016/j.heliyon.2023.e19987] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Revised: 07/19/2023] [Accepted: 09/07/2023] [Indexed: 10/10/2023] Open
Abstract
Objectives As a nutritious food, Tart cherries (Prunus cerasus L) benefit cardiovascular health. This study aims to clarify the effectiveness of Tart cherry in controlling blood pressure, heart rate, and inflammatory biomarkers, the appropriate dosage for this effect, and suggest directions for future studies. Methods PubMed, Scopus, and Web of Science were searched (up to May 2022), to identify eligible randomized controlled trials. It measured publication bias and was assessed for all outcomes. Evidence quality was evaluated using the Cochrane risk of bias tool and GRADE (Grades of Recommendations, Assessment, Development, and Evaluations). Results Regarding the 21 included trials, Tart cherry didn't affect blood pressure, heart rate, high-sensitive C-reactive protein, and interleukin-6 (P > 0.05). In contrast, with moderate certainty, it can reduce serum C-reactive protein (WMD: - 0.39 mg/l; 95% CI: - 0.74, - 0.05; P = 0.024) and with very low certainty can decrease tumor necrosis factor-alpha (WMD: - 0.14 pg/ml; 95% CI: - 0.27, - 0.02; P = 0.026). In addition, dose-response analysis implies that with each 30 ml elevation in dose, CRP reduces by 0.19 mg/l (95% CI: - 0.37, - 0.01). Conclusions Tart cherry can control inflammation by administering the proper dose. Even though tart cherry generally doesn't affect blood pressure and heart rate, further high-quality studies are needed to determine its effect.
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Affiliation(s)
- Mostafa Norouzzadeh
- Department of Nutrition, School of Public Health, Iran University of Medical Sciences, Tehran, Iran
- Student Research Committee, Faculty of Public Health Branch, Iran University of Medical Sciences, Tehran, Iran
| | - Minoo Hasan Rashedi
- Department of Nutrition, School of Public Health, Iran University of Medical Sciences, Tehran, Iran
| | - Hossein Shahinfar
- Department of Nutrition, School of Public Health, Iran University of Medical Sciences, Tehran, Iran
- Student Research Committee, Faculty of Public Health Branch, Iran University of Medical Sciences, Tehran, Iran
| | - Seyedeh Tayebeh Rahideh
- Department of Nutrition, School of Public Health, Iran University of Medical Sciences, Tehran, Iran
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Nobari H, Azarian S, Saedmocheshi S, Valdés-Badilla P, García Calvo T. Narrative review: The role of circadian rhythm on sports performance, hormonal regulation, immune system function, and injury prevention in athletes. Heliyon 2023; 9:e19636. [PMID: 37809566 PMCID: PMC10558889 DOI: 10.1016/j.heliyon.2023.e19636] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Revised: 08/21/2023] [Accepted: 08/29/2023] [Indexed: 10/10/2023] Open
Abstract
Objectives This study was a narrative review of the importance of circadian rhythm (CR), describes the underlying mechanisms of CR in sports performance, emphasizes the reciprocal link between CR, endocrine homeostasis and sex differences, and the unique role of the circadian clock in immune system function and coordination. Method As a narrative review study, a comprehensive search was conducted in PubMed, Scopus, and Web of Science (core collection) databases using the keywords "circadian rhythm", "sports performance", "hormonal regulation", "immune system", and "injury prevention". Inclusion criteria were studies published in English and peer-reviewed journals until July 2023. Studies that examined the role of CR in sports performance, hormonal status, immune system function, and injury prevention in athletes were selected for review. Results CR is followed by almost all physiological and biochemical activities in the human body. In humans, the superchiasmatic nucleus controls many daily biorhythms under solar time, including the sleep-wake cycle. A body of literature indicates that the peak performance of essential indicators of sports performance is primarily in the afternoon hours, and the evening of actions occurs roughly at the peak of core body temperature. Recent studies have demonstrated that the time of day that exercise is performed affects the achievement of good physical performance. This review also shows various biomarkers of cellular damage in weariness and the underlying mechanisms of diurnal fluctuations. According to the clock, CR can be synchronized with photonic and non-photonic stimuli (i.e., temperature, physical activity, and food intake), and feeding patterns and diet changes can affect CR and redox markers. It also emphasizes the reciprocal links between CR and endocrine homeostasis, the specific role of the circadian clock in coordinating immune system function, and the relationship between circadian clocks and sex differences. Conclusion The interaction between insufficient sleep and time of day on performance has been established in this study because it is crucial to balance training, recovery, and sleep duration to attain optimal sports performance.
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Affiliation(s)
- Hadi Nobari
- Faculty of Sport Sciences, University of Extremadura, 10003, Cáceres, Spain
- Department of Exercise Physiology, Faculty of Educational Sciences and Psychology, University of Mohaghegh Ardabili, Ardabil, 56199-11367, Iran
| | - Somayeh Azarian
- Department of Exercise Physiology, Faculty of Educational Sciences and Psychology, University of Mohaghegh Ardabili, Ardabil, 56199-11367, Iran
| | - Saber Saedmocheshi
- Department of Physical Education and Sport Sciences, Faculty of Humanities and Social Sciences, University of Kurdistan, Sanandaj, 66177-15175, Iran
| | - Pablo Valdés-Badilla
- Department of Physical Activity Sciences, Faculty of Education Sciences, Universidad Católica del Maule, Talca, 3530000, Chile
- Sports Coach Career, School of Education, Universidad Viña del Mar, Viña del Mar, 2520000, Chile
| | - Tomás García Calvo
- Faculty of Sport Sciences, University of Extremadura, 10003, Cáceres, Spain
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15
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Sinclair J, Dillon S, Allan R, Brooks-Warburton J, Desai T, Lawson C, Bottoms L. Health Benefits of Montmorency Tart Cherry Juice Supplementation in Adults with Mild to Moderate Ulcerative Colitis: A Protocol for a Placebo Randomized Controlled Trial. Methods Protoc 2023; 6:76. [PMID: 37736959 PMCID: PMC10514793 DOI: 10.3390/mps6050076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Revised: 08/18/2023] [Accepted: 08/23/2023] [Indexed: 09/23/2023] Open
Abstract
Ulcerative colitis, characterized by its relapsing and remissive nature, negatively affects perception, body image, and overall quality of life. The associated financial burden underscores the need for alternative treatment approaches with fewer side effects, alongside pharmaceutical interventions. Montmorency tart cherries, rich in anthocyanins, have emerged as a potential natural anti-inflammatory agent for ulcerative colitis. This manuscript outlines the study protocol for a randomized placebo-controlled trial investigating the effects of Montmorency tart cherry in individuals with ulcerative colitis. The trial aims to recruit 40 participants with mild to moderate disease activity randomly assign them to either a Montmorency tart cherry or placebo group. The intervention will span 6 weeks, with baseline and 6-week assessments. The primary outcome measure is the Inflammatory Bowel Disease Quality of Life Questionnaire. Secondary outcomes include other health-related questionnaires and biological indices. Statistical analysis will adhere to an intention-to-treat approach using linear mixed effect models. Ethical approval has been obtained from the University of Hertfordshire (cLMS/SF/UH/05240), and the trial has been registered as a clinical trial (NCT05486507). The trial findings will be disseminated through a peer-reviewed publication in a scientific journal.
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Affiliation(s)
- Jonathan Sinclair
- Research Centre for Applied Sport, Physical Activity and Performance, School of Sport & Health Sciences, Faculty of Allied Health and Wellbeing, University of Central Lancashire, Preston PR1 2HE, UK
| | - Stephanie Dillon
- Research Centre for Applied Sport, Physical Activity and Performance, School of Sport & Health Sciences, Faculty of Allied Health and Wellbeing, University of Central Lancashire, Preston PR1 2HE, UK
| | - Robert Allan
- Research Centre for Applied Sport, Physical Activity and Performance, School of Sport & Health Sciences, Faculty of Allied Health and Wellbeing, University of Central Lancashire, Preston PR1 2HE, UK
| | - Johanne Brooks-Warburton
- Gastroenterology Department, Lister Hospital, Stevenage SG1 4AB, UK
- School of Life and Medical Sciences, University of Hertfordshire, Hatfield, AL10 9AB, UK (L.B.)
| | - Terun Desai
- School of Life and Medical Sciences, University of Hertfordshire, Hatfield, AL10 9AB, UK (L.B.)
| | - Charlotte Lawson
- Department of Comparative Biomedical Sciences, Royal Veterinary College, London NW1 0TU, UK
| | - Lindsay Bottoms
- School of Life and Medical Sciences, University of Hertfordshire, Hatfield, AL10 9AB, UK (L.B.)
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Gangitano E, Baxter M, Voronkov M, Lenzi A, Gnessi L, Ray D. The interplay between macronutrients and sleep: focus on circadian and homeostatic processes. Front Nutr 2023; 10:1166699. [PMID: 37680898 PMCID: PMC10482045 DOI: 10.3389/fnut.2023.1166699] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Accepted: 08/04/2023] [Indexed: 09/09/2023] Open
Abstract
Sleep disturbances are an emerging risk factor for metabolic diseases, for which the burden is particularly worrying worldwide. The importance of sleep for metabolic health is being increasingly recognized, and not only the amount of sleep plays an important role, but also its quality. In this review, we studied the evidence in the literature on macronutrients and their influence on sleep, focusing on the mechanisms that may lay behind this interaction. In particular, we focused on the effects of macronutrients on circadian and homeostatic processes of sleep in preclinical models, and reviewed the evidence of clinical studies in humans. Given the importance of sleep for health, and the role of circadian biology in healthy sleep, it is important to understand how macronutrients regulate circadian clocks and sleep homeostasis.
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Affiliation(s)
- Elena Gangitano
- Oxford Centre for Diabetes, Endocrinology and Metabolism, University of Oxford, Oxford, United Kingdom
- Department of Experimental Medicine, Sapienza University of Rome, Rome, Italy
| | - Matthew Baxter
- Oxford Centre for Diabetes, Endocrinology and Metabolism, University of Oxford, Oxford, United Kingdom
- National Institute for Health Research Oxford Biomedical Research Centre, John Radcliffe Hospital, Oxford, United Kingdom
| | - Maria Voronkov
- Oxford Centre for Diabetes, Endocrinology and Metabolism, University of Oxford, Oxford, United Kingdom
| | - Andrea Lenzi
- Department of Experimental Medicine, Sapienza University of Rome, Rome, Italy
| | - Lucio Gnessi
- Department of Experimental Medicine, Sapienza University of Rome, Rome, Italy
| | - David Ray
- Oxford Centre for Diabetes, Endocrinology and Metabolism, University of Oxford, Oxford, United Kingdom
- National Institute for Health Research Oxford Biomedical Research Centre, John Radcliffe Hospital, Oxford, United Kingdom
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17
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Borisenkov MF, Popov SV, Smirnov VV, Martinson EA, Solovieva SV, Danilova LA, Gubin DG. The Association between Melatonin-Containing Foods Consumption and Students' Sleep-Wake Rhythm, Psychoemotional, and Anthropometric Characteristics: A Semi-Quantitative Analysis and Hypothetical Application. Nutrients 2023; 15:3302. [PMID: 37571240 PMCID: PMC10420797 DOI: 10.3390/nu15153302] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2023] [Revised: 07/22/2023] [Accepted: 07/24/2023] [Indexed: 08/13/2023] Open
Abstract
Food is an important source of melatonin (MT), which belongs to a group known as chronobiotics, a class of substances that affect the circadian system. Currently, no studies have been conducted on how the consumption of foods containing MT (FMT) is associated with indicators characterizing the human circadian system. In this study, we tested the hypothesis that FMT consumption is associated with chronotype and social jetlag. A total of 1277 schoolchildren and university students aged M (SD) 19.9 (4.1) years (range: 16-25 years; girls: 72.8%) participated in a cross-sectional study. Each participant completed an online questionnaire with their personal data (sex, age, height, weight, waist circumference, and academic performance) and a sequence of tests to assess their sleep-wake rhythm (the Munich Chronotype Questionnaire), sleep quality (the Pittsburgh Sleep Quality Index), and depression level (the Zung Self-Rating Depression Scale). Study participants also completed a modified food frequency questionnaire that only included foods containing MT (FMT). They were asked how many foods containing MT (FMT) they had eaten for dinner, constituting their daily serving, in the past month. The consumption of foods containing MT (FMT) during the day (FMTday) and at dinner (FMTdinner) was assessed using this test. Multiple regression analyses were performed to assess the association between the studied indicators. We found that higher FMTday values were associated with early chronotype (β = -0.09) and less social jetlag (β = -0.07), better sleep quality (β = -0.06) and lower levels of depression (β = -0.11), as well as central adiposity (β = -0.08). Higher FMTdinner values were associated with a lower risk of central adiposity (β = -0.08). In conclusion, the data obtained confirm the hypothesis that the consumption of foods containing MT (FMT) is associated with chronotype and social jetlag in adolescents and young adults.
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Affiliation(s)
- Mikhail F. Borisenkov
- Department of Molecular Immunology and Biotechnology, Institute of Physiology of Komi Science Centre of the Ural Branch of the Russian Academy of Sciences, Syktyvkar 167982, Russia; (S.V.P.); (V.V.S.)
| | - Sergey V. Popov
- Department of Molecular Immunology and Biotechnology, Institute of Physiology of Komi Science Centre of the Ural Branch of the Russian Academy of Sciences, Syktyvkar 167982, Russia; (S.V.P.); (V.V.S.)
| | - Vasily V. Smirnov
- Department of Molecular Immunology and Biotechnology, Institute of Physiology of Komi Science Centre of the Ural Branch of the Russian Academy of Sciences, Syktyvkar 167982, Russia; (S.V.P.); (V.V.S.)
| | | | - Svetlana V. Solovieva
- Department of Biology, Tyumen Medical University, Tyumen 625023, Russia; (S.V.S.); (L.A.D.)
| | - Lina A. Danilova
- Department of Biology, Tyumen Medical University, Tyumen 625023, Russia; (S.V.S.); (L.A.D.)
| | - Denis G. Gubin
- Department of Biology, Tyumen Medical University, Tyumen 625023, Russia; (S.V.S.); (L.A.D.)
- Laboratory for Chronobiology and Chronomedicine, Research Institute of Biomedicine and Biomedical Technologies, Tyumen Medical University, Tyumen 625023, Russia
- Tyumen Cardiology Research Centre, Tomsk National Research Medical Center, Russian Academy of Science, Tyumen 119991, Russia
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18
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Ghareghani M, Zibara K, Rivest S. Melatonin and vitamin D, two sides of the same coin, better to land on its edge to improve multiple sclerosis. Proc Natl Acad Sci U S A 2023; 120:e2219334120. [PMID: 36972442 PMCID: PMC10083587 DOI: 10.1073/pnas.2219334120] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/29/2023] Open
Abstract
Previous studies revealed a latitudinal gradient of multiple sclerosis (MS) prevalence, increasing by moving from the equator to the poles. The duration and quality of an individual's exposure to sunlight vary with latitude. Skin exposure to sunlight activates vitamin D synthesis, while light absence, as perceived by the eyes, activates melatonin synthesis in the pineal gland. Vitamin D or melatonin deficiency/insufficiency or overdose can occur at any latitude due to specific lifestyles and diets. Moving away from the equator, especially beyond 37°, decreases vitamin D while raising melatonin. Furthermore, melatonin synthesis increases in cold habitats like northern countries. Since melatonin's beneficial role was shown in MS, it is expected that northern countries whose individuals have higher endogenous melatonin should show a lower MS prevalence; however, these are ranked with the highest scores. In addition, countries like the United States and Canada have uncontrolled over-the-counter usage. In high latitudes, vitamin D deficiency and a higher MS prevalence persist even though vitamin D is typically compensated for by supplementation and not sunlight. Recently, we found that prolonged darkness increased MS melatonin levels, mimicking the long-term increase in northern countries. This caused a reduction in cortisol and increased infiltration, inflammation, and demyelination, which were all rescued by constant light therapy. In this review, we explain melatonin and vitamin D's possible roles in MS prevalence. The possible causes in northern countries are then discussed. Finally, we suggest strategies to treat MS by manipulating vitamin D and melatonin, preferably with sunlight or darkness, not supplements.
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Affiliation(s)
- Majid Ghareghani
- Neuroscience Laboratory, Centre Hospitalier Universitaire de Québec Research Center, Department of Molecular Medicine, Faculty of Medicine, Laval University, Québec City, QCG1V 4G2, Canada
| | - Kazem Zibara
- Platform for Research and Analysis in Environmental Science (PRASE) and Biology Department, Faculty of Sciences - I, Lebanese University, Beirut1003, Lebanon
| | - Serge Rivest
- Neuroscience Laboratory, Centre Hospitalier Universitaire de Québec Research Center, Department of Molecular Medicine, Faculty of Medicine, Laval University, Québec City, QCG1V 4G2, Canada
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19
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Ishihara A, Courville AB, Chen KY. The Complex Effects of Light on Metabolism in Humans. Nutrients 2023; 15:nu15061391. [PMID: 36986120 PMCID: PMC10056135 DOI: 10.3390/nu15061391] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2023] [Revised: 03/08/2023] [Accepted: 03/10/2023] [Indexed: 03/15/2023] Open
Abstract
Light is an essential part of many life forms. The natural light–dark cycle has been the dominant stimulus for circadian rhythms throughout human evolution. Artificial light has restructured human activity and provided opportunities to extend the day without reliance on natural day–night cycles. The increase in light exposure at unwanted times or a reduced dynamic range of light between the daytime and nighttime has introduced negative consequences for human health. Light exposure is closely linked to sleep–wake regulation, activity and eating patterns, body temperature, and energy metabolism. Disruptions to these areas due to light are linked to metabolic abnormalities such as an increased risk of obesity and diabetes. Research has revealed that various properties of light influence metabolism. This review will highlight the complex role of light in human physiology, with a specific emphasis on metabolic regulation from the perspective of four main properties of light (intensity, duration, timing of exposure, and wavelength). We also discuss the potential influence of the key circadian hormone melatonin on sleep and metabolic physiology. We explore the relationship between light and metabolism through circadian physiology in various populations to understand the optimal use of light to mitigate short and long-term health consequences.
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Langan-Evans C, Hearris MA, Gallagher C, Long S, Thomas C, Moss AD, Cheung W, Howatson G, Morton JP. Nutritional Modulation of Sleep Latency, Duration, and Efficiency: A Randomized, Repeated-Measures, Double-Blind Deception Study. Med Sci Sports Exerc 2023; 55:289-300. [PMID: 36094342 DOI: 10.1249/mss.0000000000003040] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
PURPOSE This study aimed to test the hypothesis that a novel nutritional blend composed of tryptophan, glycine, magnesium, tart cherry powder, and l -theanine enhances subjective and objective measures of sleep during free living conditions. METHODS In a randomized, repeated-measures crossover and double-blind deception design, participants ( n = 9 males and 7 females, age = 24 ± 3 yr, body mass = 69.8 ± 11.6 kg, stature = 170.8 ± 9.1 cm) completed a 3-d familiarization period, followed by 3-d intervention and placebo trials. Subjective Pittsburgh Quality Sleep Index, Core Consensus Sleep Diary, and Karolinska Sleepiness Scale survey tools, alongside objective actigraphy measures of sleep, were assessed, with daily nutritional intake, activity, and light exposure standardized between trials. Participants provided daily urine samples for assessment of targeted and untargeted metabolomes. RESULTS The intervention trial reduced sleep onset latency (-24 ± 25 min; P = 0.002), increased total sleep time (22 ± 32 min; P = 0.01), and increased sleep efficiency (2.4% ± 3.9%; P = 0.03), while also reducing morning sleepiness ( P = 0.02). Throughout the study, 75% of participants remained blinded to sleep assessment as a primary outcome measure, with 56% subjectively indicating improved sleep during the intervention trial. Metabolomic analysis highlighted several significantly altered metabolomes related to sleep regulation between trials, inclusive of 6-sulfatoxymelatonin, d -serine, and l -glutamic acid. CONCLUSIONS Data demonstrate that using the proposed blend of novel nutritional ingredients during free living conditions reduced sleep onset latency, increased total sleep duration, and increased sleep efficiency, leading to reduced perceptions of morning sleepiness. These effects may be mediated by the upregulation of key metabolites involved in the neurophysiological modulation of the sleep/wake cycle.
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Affiliation(s)
- Carl Langan-Evans
- Research Institute for Sport and Exercise Sciences, Liverpool John Moores University, Liverpool, UNITED KINGDOM
| | - Mark A Hearris
- Research Institute for Sport and Exercise Sciences, Liverpool John Moores University, Liverpool, UNITED KINGDOM
| | - Chloe Gallagher
- Research Institute for Sport and Exercise Sciences, Liverpool John Moores University, Liverpool, UNITED KINGDOM
| | - Stephen Long
- Research Institute for Sport and Exercise Sciences, Liverpool John Moores University, Liverpool, UNITED KINGDOM
| | - Craig Thomas
- School of Sport, Exercise and Health Sciences (SSEHS) Loughborough University, Loughborough, UNITED KINGDOM
| | - Andrew D Moss
- Research Institute for Sport and Exercise Sciences, Liverpool John Moores University, Liverpool, UNITED KINGDOM
| | - William Cheung
- Department of Sport, Exercise and Rehabilitation and Applied Sciences, Northumbria University, Newcastle upon Tyne, UNITED KINGDOM
| | | | - James P Morton
- Research Institute for Sport and Exercise Sciences, Liverpool John Moores University, Liverpool, UNITED KINGDOM
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21
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Amini MR, Payandeh N, Sheikhhossein F, Shahinfar H, Pourreza S, Hekmatdoost A. Effect of Tart Cherry Juice Consumption on Body Composition and Anthropometric Measures: A Systematic Review and Meta-Analysis of Randomized Controlled Trials. Clin Nutr Res 2023; 12:65-76. [PMID: 36793776 PMCID: PMC9900077 DOI: 10.7762/cnr.2023.12.1.65] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Revised: 01/07/2023] [Accepted: 01/09/2023] [Indexed: 02/04/2023] Open
Abstract
The present systematic review and meta-analysis were accomplished to understand the effects of tart cherry juice consumption on body composition and anthropometric measures. Five databases were searched using relevant keywords from inception to January 2022. All clinical trials investigating the effect of tart cherry juice consumption on body weight (BW), body mass index (BMI), waist circumference (WC), fat mass (FM), fat-free mass (FFM), and percentage body fat (PBF) were included. Out of 441 citations, 6 trials that enrolled 126 subjects were included. Tart cherry juice consumption significantly did not reduce BW (weighted mean difference [WMD], -0.4 kg; 95% confidence interval [CI], -3.25 to 2.46; p = 0.789; GRADE = low), BMI (WMD, -0.07 kg/m2; 95% CI, -0.89 to 0.74; p = 0.857; GRADE = low), FM (WMD, 0.21 kg; 95% CI, -1.83 to 2.25; p = 0.837; GRADE = low), FFM (WMD, -0.12 kg; 95% CI, -2.47 to 2.27; p = 0.919; GRADE = low), WC (WMD, 1.69 cm; 95% CI, -1.88 to 5.27; p = 0.353; GRADE = low), and PBF (WMD, 0.18%; 95% CI, -1.81 to -2.17; p = 0.858; GRADE = low). Overall, these data suggest that tart cherry juice consumption has no significant effect on BW, BMI, FM, FFM, WC, and PBF.
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Affiliation(s)
- Mohammad Reza Amini
- Student Research Committee, Department of Clinical Nutrition and Dietetics, Faculty of Nutrition Sciences and Food Technology, National Nutrition and Food Technology Research Institute, Shahid Beheshti University of Medical Sciences, Tehran 198396-3113, Iran
| | - Nastaran Payandeh
- Department of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences (TUMS), Tehran 14155-6117, Iran
| | - Fatemeh Sheikhhossein
- Department of Clinical Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences (TUMS), Tehran 14155-6117, Iran
| | - Hossein Shahinfar
- Student Research Committee, Department of Clinical Nutrition and Dietetics, Faculty of Nutrition Sciences and Food Technology, National Nutrition and Food Technology Research Institute, Shahid Beheshti University of Medical Sciences, Tehran 198396-3113, Iran
| | - Sanaz Pourreza
- Department of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences (TUMS), Tehran 14155-6117, Iran
| | - Azita Hekmatdoost
- Student Research Committee, Department of Clinical Nutrition and Dietetics, Faculty of Nutrition Sciences and Food Technology, National Nutrition and Food Technology Research Institute, Shahid Beheshti University of Medical Sciences, Tehran 198396-3113, Iran
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22
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Doherty R, Madigan S, Warrington G, Ellis JG. Sleep and Nutrition in Athletes. CURRENT SLEEP MEDICINE REPORTS 2023. [DOI: 10.1007/s40675-022-00244-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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23
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Soltanifar A, Moharreri F, Bakhtiari E, Hosseinpour A. The Effect of Adding Sour Cherry Concentrate to The Usual Treatment of Attention Deficit Hyperactivity Disorder In 6 To 12 Years Old Children. J Atten Disord 2023; 27:214-219. [PMID: 36326299 DOI: 10.1177/10870547221129307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
INTRODUCTION This study aimed to evaluate the efficacy of sour cherry concentrate in symptoms of Attention Deficit Hyperactivity Disorder (ADHD). METHODS In a randomized clinical trial, 70 children with ADHD referred to the psychiatric clinic of Ibn-e-Sina Hospital, Mashhad, Iran, in 2021 were selected. Patients were randomly divided into two groups. The intervention group received 75 ml of sour cherry concentrate twice daily in addition to the routine treatment for 2 weeks. The patients were evaluated using The Conner's Parent Rating Scale (CPRS) before and after the study by a psychiatry resident. RESULTS Based on the findings, no significant differences were observed between the groups in change percent of Cognitive impairments (p = .317), Hyperactivity/impulsivity (p = .525), Oppositional (p = .986), and ADHD index (p = .451). Moreover, 28.6% and 31.4% of children with ADHD consuming the concentrate presented abdominal pain, and asthenia, respectively. CONCLUSION The present study did not indicate a beneficial effect of sour cherry concentrate on symptoms of ADHD.
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Affiliation(s)
- Atefeh Soltanifar
- Mashhad University of Medical Sciences, Mashhad, Razavi Khorasan, Islamic Republic of Iran
| | - Fatemeh Moharreri
- Mashhad University of Medical Sciences, Mashhad, Razavi Khorasan, Islamic Republic of Iran
| | - Elham Bakhtiari
- Mashhad University of Medical Sciences, Mashhad, Razavi Khorasan, Islamic Republic of Iran
| | - Asieh Hosseinpour
- Mashhad University of Medical Sciences, Mashhad, Razavi Khorasan, Islamic Republic of Iran
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24
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Muacevic A, Adler JR, Boike S, Kashyap R, Khan SA, Surani S. Nutritional Elements in Sleep. Cureus 2022; 14:e32803. [PMID: 36694494 PMCID: PMC9859770 DOI: 10.7759/cureus.32803] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/21/2022] [Indexed: 12/24/2022] Open
Abstract
Sleep comprises one-third of our day and plays an integral role in human health and well-being. Many factors influence sleep, with nutrition being a key element that impacts various sleep parameters. Meal-timing through strategies like chrono-nutrition leads to positive sleep outcomes. In addition, consuming a high-protein diet with essential amino acids, low-glycemic-index foods, and certain fruits rich in antioxidants can all contribute to better sleep quality. Other facets of nutrition that can affect sleep outcomes include weight loss and limiting certain nutritional elements such as caffeine, nicotine, and alcohol. In this article, we will shed some light on how some of these factors can play a vital role in sleep quality.
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25
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Yousefzadehfard Y, Wechsler B, DeLorenzo C. Human circadian rhythm studies: Practical guidelines for inclusion/exclusion criteria and protocol. Neurobiol Sleep Circadian Rhythms 2022; 13:100080. [PMID: 35989718 PMCID: PMC9382328 DOI: 10.1016/j.nbscr.2022.100080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Revised: 08/01/2022] [Accepted: 08/02/2022] [Indexed: 11/03/2022] Open
Abstract
As interest in circadian rhythms and their effects continues to grow, there is an increasing need to perform circadian studies in humans. Although the constant routine is the gold standard for these studies, there are advantages to performing more naturalistic studies. Here, a review of protocols for such studies is provided along with sample inclusion and exclusion criteria. Sleep routines, drug use, shift work, and menstrual cycle are addressed as screening considerations. Regarding protocol, best practices for measuring melatonin, including light settings, posture, exercise, and dietary habits are described. The inclusion/exclusion recommendations and protocol guidelines are intended to reduce confounding variables in studies that do not involve the constant routine. Given practical limitations, a range of recommendations is provided from stringent to lenient. The scientific rationale behind these recommendations is discussed. However, where the science is equivocal, recommendations are based on empirical decisions made in previous studies. While not all of the recommendations listed may be practical in all research settings and with limited potential participants, the goal is to allow investigators to make well informed decisions about their screening procedures and protocol techniques and to improve rigor and reproducibility, in line with the objectives of the National Institutes of Health.
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Affiliation(s)
- Yashar Yousefzadehfard
- Center for Understanding Biology Using Imaging Technology, Department of Psychiatry, Stony Brook University, Stony Brook, NY, USA.,Department of Psychiatry, Texas Tech University Health Science Center, Midland, TX, USA
| | - Bennett Wechsler
- Department of Psychiatry, University of Massachusetts Medical School, Worcester, MA, USA
| | - Christine DeLorenzo
- Center for Understanding Biology Using Imaging Technology, Department of Psychiatry, Stony Brook University, Stony Brook, NY, USA
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Chan YM, Shariff ZM, Chin YS, Ghazali SS, Lee PY, Chan KS. Associations of alkaline water with metabolic risks, sleep quality, muscle strength: A cross-sectional study among postmenopausal women. PLoS One 2022; 17:e0275640. [PMID: 36315555 PMCID: PMC9621423 DOI: 10.1371/journal.pone.0275640] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Accepted: 09/20/2022] [Indexed: 11/05/2022] Open
Abstract
Much has been claimed on the health benefits of alkaline water including metabolic syndrome (MetS) and its features with scarcity of scientific evidence. Methods: This cross-sectional comparative study was conducted to determine whether regular consumption of alkaline water confers health advantage on blood metabolites, anthropometric measures, sleep quality and muscle strength among postmenopausal women. A total of 304 community-dwelling postmenopausal women were recruited with comparable proportion of regular drinkers of alkaline water and non-drinkers. Participants were ascertained on dietary intake, lifestyle factors, anthropometric and biochemical measurements. Diagnosis of MetS was made according to Joint Interim Statement definition. A total of 47.7% of the participants met MS criteria, with a significant lower proportion of MetS among the alkaline water drinkers. The observed lower fasting plasma glucose (F(1,294) = 24.20, p = 0.025, partial η2 = 0.435), triglyceride/high-density lipoprotein concentration ratio (F(1,294) = 21.06, p = 0.023, partial η2 = 0.360), diastolic blood pressure (F(1,294) = 7.85, p = 0.046, partial η2 = 0.258) and waist circumference (F(1,294) = 9.261, p = 0.038, partial η2 = 0.263) in the alkaline water drinkers could be considered as favourable outcomes of regular consumption of alkaline water. In addition, water alkalization improved duration of sleep (F(1,294) = 32.05, p = 0.007, partial η2 = 0.451) and handgrip strength F(1,294) = 27.51, p = 0.011, partial η2 = 0.448). Low density lipoprotein cholesterol concentration (F(1,294) = 1.772, p = 0.287, partial η2 = 0.014), body weight (F(1,294) = 1.985, p = 0.145, partial η2 = 0.013) and systolic blood pressure (F(1,294) = 1.656, p = 0.301, partial η2 = 0.010) were comparable between the two different water drinking behaviours. In conclusion, drinking adequate of water is paramount for public health with access to good quality drinking water remains a critical issue. While consumption of alkaline water may be considered as a source of easy-to implement lifestyle to modulate metabolic features, sleep duration and muscle strength, further studies are warranted for unravelling the precise mechanism of alkaline water consumption on the improvement and prevention of MetS and its individual features, muscle strength and sleep duration as well as identification of full spectrum of individuals that could benefit from its consumption.
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Affiliation(s)
- Yoke Mun Chan
- Faculty of Medicine and Health Sciences, Department of Dietetics, Universiti Putra Malaysia (UPM), Serdang, Malaysia
- Faculty of Medicine and Health Sciences, Research Center of Excellence Nutrition and Non-Communicable Diseases, Universiti Putra Malaysia (UPM), Serdang, Malaysia
- Malaysian Research Institute on Ageing, Universiti Putra Malaysia, Serdang, Malaysia
- * E-mail:
| | - Zalilah Mohd Shariff
- Faculty of Medicine and Health Sciences, Department of Nutrition, Universiti Putra Malaysia (UPM), Serdang, Malaysia
| | - Yit Siew Chin
- Faculty of Medicine and Health Sciences, Research Center of Excellence Nutrition and Non-Communicable Diseases, Universiti Putra Malaysia (UPM), Serdang, Malaysia
- Faculty of Medicine and Health Sciences, Department of Nutrition, Universiti Putra Malaysia (UPM), Serdang, Malaysia
| | - Sazlina Shariff Ghazali
- Faculty of Medicine and Health Sciences, Department of Family Medicine, Universiti Putra Malaysia (UPM), Serdang, Malaysia
| | - Ping Yein Lee
- Faculty of Medicine, UMeHealth Unit, Universiti Malaya (UM), Kuala Lumpur, Malaysia
| | - Kai Sze Chan
- Faculty of Medicine and Health Sciences, Department of Dietetics, Universiti Putra Malaysia (UPM), Serdang, Malaysia
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27
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Patniyot I, Qubty W. Headache in Adolescents. Neurol Clin 2022; 41:177-192. [DOI: 10.1016/j.ncl.2022.08.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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28
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Cheon J, Kim M. Comprehensive effects of various nutrients on sleep. Sleep Biol Rhythms 2022; 20:449-458. [PMID: 38468613 PMCID: PMC10899959 DOI: 10.1007/s41105-022-00408-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Accepted: 07/16/2022] [Indexed: 10/16/2022]
Abstract
Sleep problems have become common among people today. Sleep disorders are closely associated with physiological and psychological diseases. Among the ways of improving objective or subjective sleep quality, controlling elements associated with food intake can be more efficient than other methods in terms of time and cost. Therefore, the purpose of this study was to understand the effects of nutrients and natural products on sleep. An extensive literature search was conducted, and related articles were identified through online databases, such as Elsevier, Google Scholar, PubMed, Springer, and Web of Science. Expert opinion, conference abstracts, unpublished studies, and studies published in languages other than English were excluded from this review. The effects of macronutrients and diet adjustment on sleep differed. Although not all nutrients independently affect sleep, they comprehensively affect it through tryptophan metabolism. Furthermore, natural foods related to GABA have an effect on sleep similar to that of sleeping pills. Taken together, our results suggest that humans can control both their objective and subjective sleep quality based on their lifestyle and food consumption. However, until now, direct studies on the relationship between human sleep and nutrition, such as clinical trials, have been insufficient. As both objective and subjective sleep quality are the factors determining the quality of life of individuals, further studies on those are needed to improve it.
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Affiliation(s)
- Jaehwan Cheon
- Department of Chemistry & Life Science, BioScience Research Institute, Sahmyook University, Hwarangro 815, Nowongu, 01795 Seoul, Republic of Korea
| | - Mikyung Kim
- Department of Chemistry & Life Science, BioScience Research Institute, Sahmyook University, Hwarangro 815, Nowongu, 01795 Seoul, Republic of Korea
- Department of Pharmacy, Uimyung Research Institute for Neuroscience, Sahmyook University, Hwarangro 815, Nowongu, Seoul, 01795 Republic of Korea
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Minich DM, Henning M, Darley C, Fahoum M, Schuler CB, Frame J. Is Melatonin the "Next Vitamin D"?: A Review of Emerging Science, Clinical Uses, Safety, and Dietary Supplements. Nutrients 2022; 14:3934. [PMID: 36235587 PMCID: PMC9571539 DOI: 10.3390/nu14193934] [Citation(s) in RCA: 37] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 08/20/2022] [Accepted: 08/22/2022] [Indexed: 11/17/2022] Open
Abstract
Melatonin has become a popular dietary supplement, most known as a chronobiotic, and for establishing healthy sleep. Research over the last decade into cancer, Alzheimer's disease, multiple sclerosis, fertility, PCOS, and many other conditions, combined with the COVID-19 pandemic, has led to greater awareness of melatonin because of its ability to act as a potent antioxidant, immune-active agent, and mitochondrial regulator. There are distinct similarities between melatonin and vitamin D in the depth and breadth of their impact on health. Both act as hormones, affect multiple systems through their immune-modulating, anti-inflammatory functions, are found in the skin, and are responsive to sunlight and darkness. In fact, there may be similarities between the widespread concern about vitamin D deficiency as a "sunlight deficiency" and reduced melatonin secretion as a result of "darkness deficiency" from overexposure to artificial blue light. The trend toward greater use of melatonin supplements has resulted in concern about its safety, especially higher doses, long-term use, and application in certain populations (e.g., children). This review aims to evaluate the recent data on melatonin's mechanisms, its clinical uses beyond sleep, safety concerns, and a thorough summary of therapeutic considerations concerning dietary supplementation, including the different formats available (animal, synthetic, and phytomelatonin), dosing, timing, contraindications, and nutrient combinations.
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Affiliation(s)
- Deanna M. Minich
- Department of Human Nutrition and Functional Medicine, University of Western States, Portland, OR 97213, USA
| | - Melanie Henning
- Department of Sports and Performance Psychology, University of the Rockies, Denver, CO 80202, USA
| | - Catherine Darley
- College of Naturopathic Medicine, National University of Natural Medicine, Portland, OR 97201, USA
| | - Mona Fahoum
- School of Naturopathic Medicine, Bastyr University, Kenmore, WA 98028, USA
| | - Corey B. Schuler
- School of Nutrition, Sonoran University of Health Sciences, Tempe, AZ 85282, USA
- Department of Online Education, Northeast College of Health Sciences, Seneca Falls, NY 13148, USA
| | - James Frame
- Natural Health International Pty., Ltd., Sydney, NSW 2000, Australia
- Symphony Natural Health, Inc., West Valley City, UT 84119, USA
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30
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Benton D, Bloxham A, Gaylor C, Brennan A, Young HA. Carbohydrate and sleep: An evaluation of putative mechanisms. Front Nutr 2022; 9:933898. [PMID: 36211524 PMCID: PMC9532617 DOI: 10.3389/fnut.2022.933898] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2022] [Accepted: 08/29/2022] [Indexed: 11/16/2022] Open
Abstract
Sleep problems are extremely common in industrialized countries and the possibility that diet might be used to improve sleep has been considered. The topic has been reviewed many times, resulting in the frequent suggestion that carbohydrate increases the uptake of tryptophan by the brain, where it is metabolized into serotonin and melatonin, with the suggestion that this improves sleep. An alternative mechanism was proposed based on animal literature that has been largely ignored by those considering diet and sleep. The hypothesis was that, as in the hypothalamus there are glucose-sensing neurons associated with the sleep-wake cycle, we should consider the impact of carbohydrate-induced changes in the level of blood glucose. A meta-analysis found that after consuming a lower amount of carbohydrate, more time was spent in slow-wave sleep (SWS) and less in rapid-eye-movement sleep. As the credibility of alternative mechanisms has tended not to have been critically evaluated, they were considered by examining their biochemical, nutritional, and pharmacological plausibility. Although high carbohydrate consumption can increase the uptake of tryptophan by the brain, it only occurs with such low levels of protein that the mechanism is not relevant to a normal diet. After entering the brain tryptophan is converted to serotonin, a neurotransmitter known to influence so many different aspects of sleep and wakefulness, that it is not reasonable to expect a uniform improvement in sleep. Some serotonin is converted to melatonin, although the exogenous dose of melatonin needed to influence sleep cannot be credibly provided by the diet. This review was registered in the International Prospective Register of Systematic Reviews (CRD42020223560).
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Chung J, Choi M, Lee K. Effects of Short-Term Intake of Montmorency Tart Cherry Juice on Sleep Quality after Intermittent Exercise in Elite Female Field Hockey Players: A Randomized Controlled Trial. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:10272. [PMID: 36011907 PMCID: PMC9408103 DOI: 10.3390/ijerph191610272] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Revised: 08/08/2022] [Accepted: 08/16/2022] [Indexed: 06/15/2023]
Abstract
The purpose of this study was to investigate the effect of short-term consumption of tart cherry juice on levels of cortisol and melatonin and sleep quality after intermittent exhaustion exercise in female elite field hockey players. A total of 19 field hockey players participated in the present study for 5 days. The individuals were divided into the placebo group (PLA, n = 9) and the tart cherry juice group (TCJ, n = 10), respectively. Actigraphy devices were distributed to analyze sleep quality and participants were required to wear the device while sleeping until the study was completed. Participants consumed tart cherry juice or placebo drinks five times in a total of 48 h while double-blinded after intermittent exhaustion exercise. A significant interaction effect (group × time) between PLA and TCJ groups was not observed in the levels of melatonin and cortisol. The variables of sleep quality showed significant interaction effects with regards to the total time in bed (TTB; p = 0.015), wake after sleep onset (WASO; p = 0.044), and movement index (MI; p = 0.031) variables. As a result, our study confirmed the possibility that the short-term intake of tart cherry juice could not change the levels of melatonin and cortisol in elite female hockey players but could help improve their sleep quality.
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Affiliation(s)
- Jinwook Chung
- Department of Sport Culture, Dongguk University, 30, Pildong-ro 1gil, Jung-gu, Seoul 04620, Korea
| | - Minkyung Choi
- Department of Sports Science Convergence, Dongguk University, 30, Pildong-ro 1gil, Jung-gu, Seoul 04620, Korea
| | - Kihyuk Lee
- Department of Sports Science Convergence, Dongguk University, 30, Pildong-ro 1gil, Jung-gu, Seoul 04620, Korea
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The Impact of Dietary Factors on the Sleep of Athletically Trained Populations: A Systematic Review. Nutrients 2022; 14:nu14163271. [PMID: 36014779 PMCID: PMC9414564 DOI: 10.3390/nu14163271] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Revised: 08/08/2022] [Accepted: 08/08/2022] [Indexed: 11/16/2022] Open
Abstract
Many athletic populations report poor sleep, especially during intensive training and competition periods. Recently, diet has been shown to significantly affect sleep in general populations; however, little is known about the effect diet has on the sleep of athletically trained populations. With sleep critical for optimal recovery and sports performance, this systematic review aimed to evaluate the evidence demonstrating that dietary factors influence the sleep of athletically trained populations. Four electronic databases were searched from inception to May 2022, with primary research articles included if they contained a dietary factor(s), an outcome measure of sleep or sleepiness, and participants could be identified as ‘athletically trained’. Thirty-five studies were included, with 21 studies assessed as positive quality, 13 as neutral, and one as negative. Sleep or sleepiness was measured objectively in 46% of studies (n = 16). The review showed that evening (≥5 p.m.) caffeine intakes >2 mg·kg−1 body mass decreased sleep duration and sleep efficiency, and increased sleep latency and wake after sleep onset. Evening consumption of high glycaemic index carbohydrates and protein high in tryptophan may reduce sleep latency. Although promising, more research is required before the impact of probiotics, cherry juice, and beetroot juice on the sleep of athletes can be resolved. Athletic populations experiencing sleep difficulties should be screened for caffeine use and trial dietary strategies (e.g., evening consumption of high GI carbohydrates) to improve sleep.
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Hillman AR, Trickett O, Brodsky C, Chrismas B. Montmorency tart cherry supplementation does not impact sleep, body composition, cellular health, or blood pressure in healthy adults. Nutr Health 2022:2601060221111230. [PMID: 35790450 DOI: 10.1177/02601060221111230] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Background: Sleep disturbances are linked with cardiovascular and metabolic disease as well as poor body composition. Aim: To investigate the use of tart cherry supplements, which are high in antioxidants and may contain melatonin, on parameters of health such as sleep, body composition, cellular health, and blood pressure (BP). Methods: Forty-four participants had completed sleep record data and were included in this analysis. Participants consumed either two 240 ml bottles per day of Montmorency tart cherry (MTC) juice or placebo or two capsules per day of powdered MTC or placebo for 30 days. Participants tracked their sleep daily via questionnaire and completed body composition and BP assessments at baseline, 14 days, and 30 days after supplementation. Results: There were no significant differences in sleep time or quality between groups, though both increased over 30 days. The capsule groups had significantly lower body mass (BM) 14 days versus baseline for placebo group (p = 0.01, mean difference: 0.70 kg) and at 30 days versus 14 days in MTC group (p = 0.02, mean difference: 0.75 kg). No other differences in body composition or cellular health were found. BP was unaffected by MTC supplementation over 30 days. Despite the potential benefits of antioxidants and melatonin, we did not find improvements in sleep time or quality, cellular health or BP in participants consuming MTC for 30 days, though BM decreased in capsule groups. Conclusion: These results conflict with previous data on MTC and sleep and BP, therefore further investigation is warranted.
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Affiliation(s)
- Angela R Hillman
- School of Applied Health Science and Wellness, Division of Exercise Physiology, 1354Ohio University, Athens, OH USA
| | - Olivia Trickett
- School of Applied Health Science and Wellness, Division of Exercise Physiology, 1354Ohio University, Athens, OH USA
| | - Christopher Brodsky
- School of Applied Health Science and Wellness, Division of Exercise Physiology, 1354Ohio University, Athens, OH USA
| | - Bryna Chrismas
- College of Education, Department of Physical Education, 213495Qatar University, Qatar
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Sinclair J, Stainton P, Dillon S, Taylor PJ, Richardson C, Bottoms L, Hobbs SJ, Shadwell G, Liles N, Allan R. The efficacy of a tart cherry drink for the treatment of patellofemoral pain in recreationally active individuals: a placebo randomized control trial. SPORT SCIENCES FOR HEALTH 2022. [DOI: 10.1007/s11332-022-00973-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
Abstract
Purpose
This study aimed to explore the efficacy of U.S. Montmorency tart cherry in treating recreationally active individuals with patellofemoral pain.
Methods
Twenty-four recreationally active participants with patellofemoral pain were randomly separated into either placebo (males N = 8, females N = 4, age = 43.30 ± 7.86 yrs, mass = 72.10 ± 17.89 kg, stature = 171.16 ± 10.17, BMI = 24.31 ± 3.75 kg/m2, symptom duration = 30.18 ± 10.90) or Montmorency tart cherry (males N = 9, females N = 3, age = 41.75 ± 7.52 yrs, mass = 76.96 ± 16.64 kg, stature = 173.05 ± 7.63, BMI = 25.53 ± 4.03 kg/m2, symptom duration = 29.73 ± 11.88) groups. Both groups ingested 60 mL of either Montmorency tart cherry concentrate or taste matched placebo daily for 6 weeks. Measures of self-reported pain (KOOS-PF), psychological wellbeing (COOP WONCA), and sleep quality (PSQI) alongside blood biomarkers (C-reactive protein, uric acid, TNF alpha, creatinine, and total antioxidant capacity) and knee biomechanics were quantified at baseline and 6 weeks. Differences between groups were examined using linear mixed-effects models.
Results
There was 1 withdrawal in the cherry and 0 in the placebo group and no adverse events were noted in either condition. The placebo condition exhibited significant improvements (baseline = 67.90 ± 16.18 & 6 weeks = 78.04 ± 14.83) in KOOS-PF scores compared to the tart cherry group (baseline = 67.28 ± 12.55& 6 weeks = 67.55 ± 20.61). No other statistically significant observations were observed.
Conclusion
Tart cherry supplementation as specifically ingested in the current investigation does not appear to be effective in mediating improvements in patellofemoral pain symptoms in recreationally active individuals.
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Sejbuk M, Mirończuk-Chodakowska I, Witkowska AM. Sleep Quality: A Narrative Review on Nutrition, Stimulants, and Physical Activity as Important Factors. Nutrients 2022; 14:nu14091912. [PMID: 35565879 PMCID: PMC9103473 DOI: 10.3390/nu14091912] [Citation(s) in RCA: 48] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Revised: 04/27/2022] [Accepted: 04/29/2022] [Indexed: 01/10/2023] Open
Abstract
Sleep is a cyclically occurring, transient, and functional state that is controlled primarily by neurobiological processes. Sleep disorders and insomnia are increasingly being diagnosed at all ages. These are risk factors for depression, mental disorders, coronary heart disease, metabolic syndrome, and/or high blood pressure. A number of factors can negatively affect sleep quality, including the use of stimulants, stress, anxiety, and the use of electronic devices before sleep. A growing body of evidence suggests that nutrition, physical activity, and sleep hygiene can significantly affect the quality of sleep. The aim of this review was to discuss the factors that can affect sleep quality, such as nutrition, stimulants, and physical activity.
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Affiliation(s)
- Monika Sejbuk
- Correspondence: ; Tel.: +48-85-686-5088; Fax: +48-85-686-5089
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36
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Sinclair J, Bottoms L, Dillon S, Allan R, Shadwell G, Butters B. Effects of Montmorency Tart Cherry and Blueberry Juice on Cardiometabolic and Other Health-Related Outcomes: A Three-Arm Placebo Randomized Controlled Trial. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19095317. [PMID: 35564709 PMCID: PMC9103925 DOI: 10.3390/ijerph19095317] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Revised: 04/21/2022] [Accepted: 04/24/2022] [Indexed: 12/16/2022]
Abstract
The current study aimed to investigate the influence of tart cherry and blueberry juices on cardiometabolic and other health indices following a 20-day supplementation period. Forty-five adults were randomly assigned to receive tart cherry, blueberry, or a placebo, of which they drank 60 mL per day for 20 days. The primary outcome, which was systolic blood pressure, and secondary measures, including anthropometric, energy expenditure, substrate oxidation, hematological, diastolic blood pressure/resting heart rate, psychological wellbeing, and sleep efficacy, were measured before and after the intervention. There were no statistically significant differences (p > 0.05) for systolic blood pressure; however, total and LDL cholesterol were significantly improved with blueberry intake (pre: total cholesterol = 4.36 mmol/L and LDL cholesterol = 2.71 mmol/L; post: total cholesterol = 3.79 mmol/L and LDL cholesterol = 2.23 mmol/L) compared to placebo (pre: total cholesterol = 4.01 mmol/L and LDL cholesterol = 2.45 mmol/L; post: total cholesterol = 4.34 mmol/L and LDL cholesterol = 2.67 mmol/L). Furthermore, psychological wellbeing indices measured using the Beck Depression Inventory, State Trait Anxiety Inventory, and COOP WONCA improved statistically in the blueberry arm compared to placebo. Given the clear association between lipid concentrations and the risk of cardiovascular disease as well as the importance of psychological wellbeing to health-related quality of life, this investigation indicates that it could be an effective approach to assist in managing cardiometabolic disease.
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Affiliation(s)
- Jonathan Sinclair
- Research Centre for Applied Sport, Physical Activity and Performance, School of Sport & Health Sciences, Faculty of Allied Health and Wellbeing, University of Central Lancashire, Preston PR1 2HE, UK; (S.D.); (R.A.); (G.S.); (B.B.)
- Correspondence:
| | - Lindsay Bottoms
- Centre for Research in Psychology and Sport Sciences, School of Life and Medical Sciences, University of Hertfordshire, Hatfield AL10 9AB, UK;
| | - Stephanie Dillon
- Research Centre for Applied Sport, Physical Activity and Performance, School of Sport & Health Sciences, Faculty of Allied Health and Wellbeing, University of Central Lancashire, Preston PR1 2HE, UK; (S.D.); (R.A.); (G.S.); (B.B.)
| | - Robert Allan
- Research Centre for Applied Sport, Physical Activity and Performance, School of Sport & Health Sciences, Faculty of Allied Health and Wellbeing, University of Central Lancashire, Preston PR1 2HE, UK; (S.D.); (R.A.); (G.S.); (B.B.)
| | - Gareth Shadwell
- Research Centre for Applied Sport, Physical Activity and Performance, School of Sport & Health Sciences, Faculty of Allied Health and Wellbeing, University of Central Lancashire, Preston PR1 2HE, UK; (S.D.); (R.A.); (G.S.); (B.B.)
| | - Bobbie Butters
- Research Centre for Applied Sport, Physical Activity and Performance, School of Sport & Health Sciences, Faculty of Allied Health and Wellbeing, University of Central Lancashire, Preston PR1 2HE, UK; (S.D.); (R.A.); (G.S.); (B.B.)
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Özata Uyar G, Yildiran H. The association among circadian rhythm, circadian genes and chrononutrition, its effect on obesity: a review of current evidence. BIOL RHYTHM RES 2022. [DOI: 10.1080/09291016.2022.2044631] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Affiliation(s)
- Gizem Özata Uyar
- Department of Nutrition and Dietetics, Faculty of Health Sciences, Gazi University, Ankara, Turkey
| | - Hilal Yildiran
- Department of Nutrition and Dietetics, Faculty of Health Sciences, Gazi University, Ankara, Turkey
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38
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Moss K, Zhang Y, Kreutzer A, Graybeal AJ, Porter RR, Braun-Trocchio R, Shah M. The Relationship Between Dietary Intake and Sleep Quality in Endurance Athletes. Front Sports Act Living 2022; 4:810402. [PMID: 35308592 PMCID: PMC8927303 DOI: 10.3389/fspor.2022.810402] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2021] [Accepted: 02/07/2022] [Indexed: 02/04/2023] Open
Abstract
Many endurance athletes have poor sleep quality which may affect performance and health. It is unclear how dietary intake affects sleep quality among athletes. We examined if sleep quality in endurance athletes is associated with consumption of fruit, vegetables, whole grains, dairy milk, and caffeinated beverages. Two hundred thirty-four endurance athletes (39.5 ± 14.1 year) participated in a survey. Participants provided information on demographics, anthropometry, sleep behavior and quality, and dietary intake via questionnaires. Sleep quality was assessed using the Athlete Sleep Screening Questionnaire (ASSQ) with a global score (ASSQ-global) and subscales including sleep difficulty (ASSQ-SD), chronotype (ASSQ-C), and disordered breathing while sleeping (ASSQ-SDB). A general linear model (GLM), adjusted for age, body mass index, sleep discomfort, sleep behavior, gender, race, and ethnicity, showed that higher caffeinated beverage intake was related to poorer global sleep quality (p = 0.01) and increased risk for disordered breathing while sleeping (p = 0.03). Higher whole grain intake was associated with a morning chronotype and lower risk for sleep issues (p = 0.01). The GLM did not reveal a relationship between sleep quality and dairy milk, fruit, and vegetable intake. In conclusion, caffeinated beverages and whole grain intake may influence sleep quality. This relationship needs to be confirmed by further research.
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Affiliation(s)
- Kamiah Moss
- Department of Kinesiology, Texas Christian University, Fort Worth, TX, United States
| | - Yan Zhang
- Harris College of Nursing and Health Sciences, Texas Christian University, Fort Worth, TX, United States
| | - Andreas Kreutzer
- Department of Kinesiology, Texas Christian University, Fort Worth, TX, United States
| | - Austin J. Graybeal
- School of Kinesiology and Nutrition, College of Education and Human Sciences, University of Southern Mississippi, Hattiesburg, MS, United States
| | - Ryan R. Porter
- Department of Kinesiology, Texas Christian University, Fort Worth, TX, United States
| | - Robyn Braun-Trocchio
- Department of Kinesiology, Texas Christian University, Fort Worth, TX, United States
| | - Meena Shah
- Department of Kinesiology, Texas Christian University, Fort Worth, TX, United States
- *Correspondence: Meena Shah
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Kimble R, Keane KM, Lodge JK, Cheung W, Haskell-Ramsay CF, Howatson G. Polyphenol-rich tart cherries ( Prunus Cerasus, cv Montmorency) improve sustained attention, feelings of alertness and mental fatigue and influence the plasma metabolome in middle-aged adults: a randomised, placebo-controlled trial. Br J Nutr 2022; 128:1-12. [PMID: 35109960 PMCID: PMC9723490 DOI: 10.1017/s0007114522000460] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Revised: 12/21/2021] [Accepted: 01/31/2022] [Indexed: 12/14/2022]
Abstract
Tart Montmorency cherries (MC) are a particularly rich source of anthocyanins and other polyphenols that have been shown to elicit antioxidant, anti-inflammatory and vasomodulatory actions. The current study aimed to determine the influence of chronic MC supplementation on cognitive function and mood. In a 3-month double-blinded, placebo-controlled parallel study, middle-aged adults (mean ± sd: 48 ± 6 years) were randomly assigned to either 30 ml twice daily of MC (n 25) or the same amount of an isoenergetic placebo (n 25). Cognitive function and mood were assessed before and after supplementation using a computerised cognitive task battery and visual analogue scales. Cerebral blood flow was also monitored by near-infrared spectroscopy during the task battery, and questionnaires were administered to determine subjective sleep and health status and plasma metabolomics were analysed before and after supplementation. After 3 months, the MC resulted in higher accuracy in digit vigilance (mean difference: 3·3, 95 % CI: 0·2, 6·4 %) with lower number of false alarms (mean difference: -1·2, 95 % CI: -2·0, -0·4) compared with the placebo. There was also a treatment effect for higher alertness (mean difference: 5·9, 95 % CI: 1·3, 10·5 %) and lower mental fatigue ratings (mean difference -9·5, 95 % CI: -16·5, -2·5 %) with MC. Plasma metabolomics revealed an increase in a number of amino acids in response to MC intake, but not placebo. These data suggest an anti-fatiguing effect of MC supplementation as well as the ability to improve sustained attention during times of high cognitive demand, this could be related to changes in amino acid metabolism.
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Affiliation(s)
- Rachel Kimble
- Faculty of Health and Life Sciences, Northumbria University, Newcastle-upon-Tyne, UK
- Population Health Sciences Institute, Newcastle University, Newcastle upon Tyne, UK
| | - Karen M. Keane
- School of Science and Computing, Galway-Mayo Institute of Technology, Galway, Ireland
| | - John K. Lodge
- Faculty of Health and Life Sciences, Northumbria University, Newcastle-upon-Tyne, UK
| | - William Cheung
- Faculty of Health and Life Sciences, Northumbria University, Newcastle-upon-Tyne, UK
| | | | - Glyn Howatson
- Faculty of Health and Life Sciences, Northumbria University, Newcastle-upon-Tyne, UK
- Water Research Group, School of Environmental Sciences and Development, Northwest University, Potchefstroom, South Africa
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40
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Pereira GA, Gomes Domingos AL, Aguiar ASD. Relationship between food consumption and improvements in circulating melatonin in humans: an integrative review. Crit Rev Food Sci Nutr 2022; 62:670-678. [DOI: 10.1080/10408398.2020.1825924] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Gabriela Amorim Pereira
- Faculty of Medicine, Department of Collective Health, Federal University of Juiz de Fora, Juiz de Fora, Brazil
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41
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Osman M, Khaloofi H. The phenomenon of giving hypnotic medications to children without a therapeutic purpose. ASIAN JOURNAL OF PHARMACEUTICAL RESEARCH AND HEALTH CARE 2022. [DOI: 10.4103/ajprhc.ajprhc_53_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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Abstract
Two factors intrinsic to health are diet and sleep. These two behaviors may well influence one another. Indeed, that insufficient sleep adversely impacts dietary intakes is well documented. On the other hand, diet may influence sleep via melatonin and its biosynthesis from tryptophan. Experimental data exist indicating that provision of specific foods rich in tryptophan or melatonin can improve sleep quality. Whole diets rich in fruits, vegetables, legumes, and other sources of dietary tryptophan and melatonin have been shown to predict favorable sleep outcomes. Although clinical trials are needed to confirm a causal impact of dietary patterns on sleep and elucidate underlying mechanisms, available data illustrate a cyclical relation between these lifestyle factors. We recommend adopting a healthful diet to improve sleep, which may further promote sustained favorable dietary practices.
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Affiliation(s)
- Faris M Zuraikat
- Sleep Center of Excellence, Department of Medicine, Columbia University Irving Medical Center, New York, NY 10032, USA; , ,
- Institute of Human Nutrition, Vagelos College of Physicians and Surgeons, Columbia University Irving Medical Center, New York, NY 10032, USA;
| | - Rebecca A Wood
- Institute of Human Nutrition, Vagelos College of Physicians and Surgeons, Columbia University Irving Medical Center, New York, NY 10032, USA;
| | - Rocío Barragán
- Sleep Center of Excellence, Department of Medicine, Columbia University Irving Medical Center, New York, NY 10032, USA; , ,
- Department of Preventive Medicine and Public Health, School of Medicine, University of Valencia, 46010, Valencia, Spain
- CIBER Fisiopatología de la Obesidad y Nutrición, Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Marie-Pierre St-Onge
- Sleep Center of Excellence, Department of Medicine, Columbia University Irving Medical Center, New York, NY 10032, USA; , ,
- Institute of Human Nutrition, Vagelos College of Physicians and Surgeons, Columbia University Irving Medical Center, New York, NY 10032, USA;
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43
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Patel A, Zhou EW, O'Brien M, Wang X, Zhou S. Melatonin in neuroskeletal biology. Curr Opin Pharmacol 2021; 61:42-48. [PMID: 34607253 DOI: 10.1016/j.coph.2021.08.016] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Revised: 08/27/2021] [Accepted: 08/30/2021] [Indexed: 12/17/2022]
Abstract
Osteoporosis and neurodegenerative diseases are common diseases in the aging population. Studies demonstrate the complex communication among skeletal, muscular, and nervous systems and point to the emerging roles of neuromuscular systems in bone homeostasis. The discovery that the nervous system directly regulates bone remodeling implies that osteoporosis is a neuroskeletal disease. Melatonin, a hormone secreted from the pineal gland, is a melatonin receptor 1A (MT1) and 1B (MT2) agonist and influences the function of diverse systems. Melatonin is a pharmaceutical ingredient in numerous medicines, over-the-counter medicines, nutraceuticals, and dietary supplements, which benefit disease prevention and treatment, including osteoporosis and neurodegenerative diseases. This review aims to summarize the recent advances in preventing senile, postmenopausal, and neurodegenerative osteoporosis with melatonin and provide new insights into how neuromuscular systems influence bone homeostasis. More preclinical and clinical studies in neuroskeletal biology will eventually improve the lives of people fighting osteoporosis.
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Affiliation(s)
- Anish Patel
- Skeletal Biology Laboratory, Department of Orthopedic Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Edward W Zhou
- Neuroapoptosis Drug Discovery Laboratory, Department of Neurosurgery, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Morgan O'Brien
- Skeletal Biology Laboratory, Department of Orthopedic Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Xin Wang
- Neuroapoptosis Drug Discovery Laboratory, Department of Neurosurgery, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA.
| | - Shuanhu Zhou
- Skeletal Biology Laboratory, Department of Orthopedic Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA; Harvard Stem Cell Institute, Harvard University, Cambridge, MA, USA.
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44
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Abreu R, Figueiredo P, Beckert P, Marques JP, Amorim S, Caetano C, Carvalho P, Sá C, Cotovio R, Cruz J, Dias T, Fernandes G, Gonçalves E, Leão C, Leitão A, Lopes J, Machado E, Neves M, Oliveira A, Pereira AI, Pereira B, Ribeiro F, Silva LM, Sousa F, Tinoco T, Teixeira VH, Sousa M, Brito J. Portuguese Football Federation consensus statement 2020: nutrition and performance in football. BMJ Open Sport Exerc Med 2021; 7:e001082. [PMID: 34527279 PMCID: PMC8395276 DOI: 10.1136/bmjsem-2021-001082] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/26/2021] [Indexed: 11/04/2022] Open
Abstract
Nutrition is an undeniable part of promoting health and performance among football (soccer) players. Nevertheless, nutritional strategies adopted in elite football can vary significantly depending on culture, habit and practical constraints and might not always be supported by scientific evidence. Therefore, a group of 28 Portuguese experts on sports nutrition, sports science and sports medicine sought to discuss current practices in the elite football landscape and review the existing evidence on nutritional strategies to be applied when supporting football players. Starting from understanding football's physical and physiological demands, five different moments were identified: preparing to play, match-day, recovery after matches, between matches and during injury or rehabilitation periods. When applicable, specificities of nutritional support to young athletes and female players were also addressed. The result is a set of practical recommendations that gathered consensus among involved experts, highlighting carbohydrates periodisation, hydration and conscious use of dietary supplements.
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Affiliation(s)
- Rodrigo Abreu
- Portugal Football School, Portuguese Football Federation, Cruz Quebrada, Portugal.,Universidade do Porto Faculdade de Ciências da Nutrição e Alimentação, Porto, Portugal
| | - Pedro Figueiredo
- Portugal Football School, Portuguese Football Federation, Cruz Quebrada, Portugal.,Research Center in Sports Sciences, Health Sciences and Human Development, CIDESD, University Institute of Maia, ISMAI, Maia, Portugal
| | - Paulo Beckert
- Portugal Football School, Portuguese Football Federation, Cruz Quebrada, Portugal
| | - José P Marques
- Portugal Football School, Portuguese Football Federation, Cruz Quebrada, Portugal
| | | | | | - Pedro Carvalho
- Universidade Catolica Portuguesa Escola Superior de Biotecnologia, Porto, Portugal
| | - Carla Sá
- ISMAI, Castelo da Maia, Porto, Portugal.,Polytechnic Institute of Bragança, Braganca, Portugal
| | | | - Joana Cruz
- Portimonense Futebol SAD, Portimao, Portugal
| | - Tiago Dias
- Clube Desportivo Santa Clara, Ponta Delgada, Portugal
| | | | | | - César Leão
- Instituto Politecnico de Viana do Castelo Escola Superior de Desporto e Lazer, Melgaco, Viana do Castelo, Portugal.,FC Paços de Ferreira, Paços de Ferreira, Portugal
| | | | - João Lopes
- Sporting Clube de Portugal, SAD, Lisboa, Portugal
| | | | - Mónica Neves
- Vitória Futebol Clube, Setúbal, Portugal.,Universidade do Algarve, Faro, Portugal
| | | | | | - Bruno Pereira
- Sports Medicine Control Training Unit, Instituto Portugues do Desporto e Juventude, Lisboa, Portugal
| | - Fernando Ribeiro
- Universidade do Porto Faculdade de Ciências da Nutrição e Alimentação, Porto, Portugal.,Moreirense FC, Moreira, Portugal
| | - Luis M Silva
- Centro de Medicina Desportiva do Porto, Porto, Portugal
| | - Filipe Sousa
- Futebol Clube de Vizela, Vizela, Portugal.,Futbolniy Klub Shakhtar, Shakhtar, Ukraine
| | | | - Vitor H Teixeira
- Universidade do Porto Faculdade de Ciências da Nutrição e Alimentação, Porto, Portugal.,Futebol Clube do Porto SAD, Porto, Portugal
| | - Monica Sousa
- Nutrition and Metabolism, Universidade Nova de Lisboa Faculdade de Ciências Médicas de Lisboa, Lisboa, Portugal.,NOVA Medical School, CINTESIS, Porto, Portugal
| | - João Brito
- Portugal Football School, Portuguese Football Federation, Cruz Quebrada, Portugal
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Sinclair J, Shadwell G, Dillon S, Allan R, Butters B, Bottoms L. Effects of Montmorency Tart Cherry and Blueberry Juice on Cardiometabolic Outcomes in Healthy Individuals: Protocol for a 3-Arm Placebo Randomized Controlled Trial. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph18189759. [PMID: 34574679 PMCID: PMC8466255 DOI: 10.3390/ijerph18189759] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Revised: 09/10/2021] [Accepted: 09/13/2021] [Indexed: 12/17/2022]
Abstract
Cardiometabolic disease is recognized as the predominant cause of global mortality and healthcare expenditure. Whilst pharmaceutical interventions are effective in the short term, their long-term efficacy remain equivocal and their associated side-effects are concerning. Owing to their high levels of anthocyanins, Montmorency tart cherries and blueberries have been cited as potentially important natural treatment/preventative modalities for cardiometabolic disease. This study proposed a randomized controlled trial, aims to test the effects of consumption of Montmorency tart cherry and blueberry juice on cardiometabolic outcomes compared to placebo. This 20-day, parallel, single-blind, randomized, placebo-controlled trial will recruit 45 individuals, who will be assigned to receive 60 mL per day of either Montmorency tart cherry juice, blueberry juice or a cherry/blueberry flavoured placebo. The primary study outcome is the between-group difference in systolic blood pressure from baseline to post-intervention. Secondary outcome measures will be between-group differences in anthropometric, energy expenditure and substrate oxidation (during rest and physical activity), haematological, blood pressure/resting heart rate, psychological wellbeing and sleep efficacy indices. Statistical analysis will be conducted on an intention-to-treat basis. This study has been granted ethical approval by the University of Central Lancashire, Health Research Ethics Committee (ref: HEALTH 0016) and formally registered as a trial. Dissemination of the study findings from this investigation will be through publication in a leading peer-reviewed journal.
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Affiliation(s)
- Jonathan Sinclair
- Research Centre for Applied Sport, Physical Activity and Performance, School of Sport & Health Sciences, Faculty of Allied Health and Wellbeing, University of Central Lancashire, Preston PR1 2HE, UK; (G.S.); (S.D.); (R.A.); (B.B.)
- Correspondence:
| | - Gareth Shadwell
- Research Centre for Applied Sport, Physical Activity and Performance, School of Sport & Health Sciences, Faculty of Allied Health and Wellbeing, University of Central Lancashire, Preston PR1 2HE, UK; (G.S.); (S.D.); (R.A.); (B.B.)
| | - Stephanie Dillon
- Research Centre for Applied Sport, Physical Activity and Performance, School of Sport & Health Sciences, Faculty of Allied Health and Wellbeing, University of Central Lancashire, Preston PR1 2HE, UK; (G.S.); (S.D.); (R.A.); (B.B.)
| | - Robert Allan
- Research Centre for Applied Sport, Physical Activity and Performance, School of Sport & Health Sciences, Faculty of Allied Health and Wellbeing, University of Central Lancashire, Preston PR1 2HE, UK; (G.S.); (S.D.); (R.A.); (B.B.)
| | - Bobbie Butters
- Research Centre for Applied Sport, Physical Activity and Performance, School of Sport & Health Sciences, Faculty of Allied Health and Wellbeing, University of Central Lancashire, Preston PR1 2HE, UK; (G.S.); (S.D.); (R.A.); (B.B.)
| | - Lindsay Bottoms
- Centre for Research in Psychology and Sport Sciences, School of Life and Medical Sciences, University of Hertfordshire, Hatfield AL10 9AB, UK;
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46
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Kimble R, Murray L, Keane KM, Haggerty K, Howatson G, Lodge JK. The influence of tart cherries ( Prunus Cerasus) on vascular function and the urinary metabolome: a randomised placebo-controlled pilot study. J Nutr Sci 2021; 10:e73. [PMID: 34589205 PMCID: PMC8453453 DOI: 10.1017/jns.2021.68] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Revised: 08/11/2021] [Accepted: 08/19/2021] [Indexed: 01/24/2023] Open
Abstract
Montmorency tart cherries (MC) have been found to modulate indices of vascular function with interventions of varying duration. The objective of this preliminary study was to identify the chronic effects of MC supplementation on vascular function and the potential for urinary metabolomics to provide mechanistic evidence. We performed a placebo-controlled, double-blind, randomised study on 23 healthy individuals (18M, 7F) that consumed 30 ml MC or a placebo twice daily for 28 days. Whole body measures of vascular function and spot urine collections were taken at baseline and after supplementation. There were no significant changes to vascular function including blood pressure and arterial stiffness. Urinary metabolite profiling highlighted significant changes (P < 0⋅001) with putative discriminatory metabolites related to tryptophan and histidine metabolism. Overall, MC supplementation for 28 days does not improve indices of vascular function but changes to the urinary metabolome could be suggestive of potential mechanisms.
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Affiliation(s)
- Rachel Kimble
- Department of Sport, Exercise and Rehabilitation, Faculty of Health and Life Sciences, Northumbria University, Newcastle-upon-Tyne, UK
| | - Lucy Murray
- Department of Sport, Exercise and Rehabilitation, Faculty of Health and Life Sciences, Northumbria University, Newcastle-upon-Tyne, UK
| | - Karen M. Keane
- Department of Sport, Exercise and Rehabilitation, Faculty of Health and Life Sciences, Northumbria University, Newcastle-upon-Tyne, UK
| | - Karen Haggerty
- Department of Applied Sciences, Faculty of Health and Life Sciences, Northumbria University, Newcastle-upon-Tyne, UK
| | - Glyn Howatson
- Department of Sport, Exercise and Rehabilitation, Faculty of Health and Life Sciences, Northumbria University, Newcastle-upon-Tyne, UK
| | - John K. Lodge
- Department of Applied Sciences, Faculty of Health and Life Sciences, Northumbria University, Newcastle-upon-Tyne, UK
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47
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Dunican IC, Walsh JH. Comment on Gratwicke et al. Nutritional Interventions to Improve Sleep in Team-Sport Athletes: A Narrative Review. Nutrients 2021, 13, 1586. Nutrients 2021; 13:nu13093103. [PMID: 34578977 PMCID: PMC8470945 DOI: 10.3390/nu13093103] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Accepted: 08/25/2021] [Indexed: 11/16/2022] Open
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Jansen EC, Corcoran K, Perng W, Dunietz GL, Cantoral A, Zhou L, Téllez-Rojo MM, Peterson KE. Relationships of beverage consumption and actigraphy-assessed sleep parameters among urban-dwelling youth from Mexico. Public Health Nutr 2021; 25:1-10. [PMID: 34325765 PMCID: PMC8800947 DOI: 10.1017/s136898002100313x] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Revised: 07/12/2021] [Accepted: 07/27/2021] [Indexed: 02/01/2023]
Abstract
OBJECTIVE To examine whether usual beverage intake was associated with sleep timing, duration and fragmentation among adolescents. DESIGN Usual beverage intake was assessed with a FFQ. Outcomes included sleep duration, midpoint (median of bed and wake times) and fragmentation, assessed with 7-d actigraphy. Sex-stratified linear regression was conducted with sleep characteristics as separate outcomes and quantiles of energy-adjusted beverage intake as exposures, accounting for age, maternal education, physical activity and smoking. SETTING Mexico City. PARTICIPANTS 528 adolescents residing in Mexico City enrolled in a longitudinal cohort. RESULTS The mean age (sd) was 14·4 (2·1) years; 48 % were male. Among males, milk and water consumption were associated with longer weekday sleep duration (25 (95 % CI 1, 48) and 26 (95 % CI 4, 47) more minutes, in the 4th compared to the 1st quartile); and higher 100 % fruit juice consumption was related to earlier weekday sleep timing (-22 (95 % CI -28, 1) minutes in the 1st compared to the last quantile; P = 0·03). Among females, soda was associated with higher sleep fragmentation (1·6 (95 % CI 0·4, 2·8) % in the 4th compared to the 1st), and coffee/tea consumption was related to shorter weekend sleep duration (-23 (95 % CI -44, 2) minutes in the 4th compared to the 1st). CONCLUSIONS Among females, adverse associations with sleep were observed for caffeinated drinks, while males with higher consumption of healthier beverage options (water, milk and 100 % juice) had evidence of longer and earlier-timed sleep. Potential mechanisms involving melatonin and tryptophan should be further investigated.
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Affiliation(s)
- Erica C Jansen
- Department of Nutritional Sciences, University of Michigan School of Public Health, 3863 SPH I, Washington Heights, Ann Arbor, MI48103, USA
- Department of Neurology, Division of Sleep Medicine, Michigan Medicine, Ann Arbor, MI, USA
| | - Kathleen Corcoran
- Department of Nutritional Sciences, University of Michigan School of Public Health, 3863 SPH I, Washington Heights, Ann Arbor, MI48103, USA
| | - Wei Perng
- Department of Epidemiology, Lifecourse Epidemiology of Adiposity and Diabetes (LEAD) Center, Colorado School of Public Health, University of Colorado Denver Anschutz Medical Campus, Aurora, CO, USA
| | - Galit L Dunietz
- Department of Neurology, Division of Sleep Medicine, Michigan Medicine, Ann Arbor, MI, USA
| | | | - Ling Zhou
- Center of Statistical Research and School of Statistics, Southwestern University of Finance and Economics, Chengdu, China
| | - Martha M Téllez-Rojo
- Center for Research on Nutrition and Health, National Institute of Public Health, Cuernavaca, Mexico
| | - Karen E Peterson
- Department of Nutritional Sciences, University of Michigan School of Public Health, 3863 SPH I, Washington Heights, Ann Arbor, MI48103, USA
- Department of Environmental Health Sciences, University of Michigan School of Public Health, Ann Arbor, MI, USA
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Vlahoyiannis A, Aphamis G, Bogdanis GC, Sakkas GK, Andreou E, Giannaki CD. Deconstructing athletes' sleep: A systematic review of the influence of age, sex, athletic expertise, sport type, and season on sleep characteristics. JOURNAL OF SPORT AND HEALTH SCIENCE 2021; 10:387-402. [PMID: 32325024 PMCID: PMC8343120 DOI: 10.1016/j.jshs.2020.03.006] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2019] [Revised: 11/19/2019] [Accepted: 02/14/2020] [Indexed: 05/11/2023]
Abstract
PURPOSE This systematic review aimed to describe objective sleep parameters for athletes under different conditions and address potential sleep issues in this specific population. METHODS PubMed and Scopus were searched from inception to April 2019. Included studies measured sleep only via objective evaluation tools such as polysomnography or actigraphy. The modified version of the Newcastle-Ottawa Scale was used for the quality assessment of the studies. RESULTS Eighty-one studies were included, of which 56 were classified as medium quality, 5 studies as low quality, and 20 studies as high quality. A total of 1830 athletes were monitored over 18,958 nights. Average values for sleep-related parameters were calculated for all athletes according to sex, age, athletic expertise level, training season, and type of sport. Athletes slept on average 7.2 ± 1.1 h/night (mean ± SD), with 86.3% ± 6.8% sleep efficiency (SE). In all datasets, the athletes' mean total sleep time was <8 h. SE was low for young athletes (80.3% ± 8.8%). Reduced SE was attributed to high wake after sleep onset rather than sleep onset latency. During heavy training periods, sleep duration and SE were on average 36 min and 0.8% less compared to pre-season and 42 min and 3.0% less compared to in-season training periods, respectively. CONCLUSION Athletes' sleep duration was found to be short with low SE, in comparison to the general consensus for non-athlete healthy adults. Notable sleep issues were revealed in young athletes. Sleep quality and architecture tend to change across different training periods.
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Affiliation(s)
- Angelos Vlahoyiannis
- Department of Life and Health Sciences, University of Nicosia, Nicosia 1700, Cyprus
| | - George Aphamis
- Department of Life and Health Sciences, University of Nicosia, Nicosia 1700, Cyprus
| | - Gregory C Bogdanis
- School of Physical Education and Sport Science, National and Kapodistrian University of Athens, Athens 17237, Greece
| | - Giorgos K Sakkas
- Department of Physical Education and Sport Science, University of Thessaly, Trikala 42100, Greece; School of Sport and Health Sciences, Cardiff Metropolitan University, Cardiff CF5 2YB, UK
| | - Eleni Andreou
- Department of Life and Health Sciences, University of Nicosia, Nicosia 1700, Cyprus
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Roy P, Tomassoni D, Traini E, Martinelli I, Micioni Di Bonaventura MV, Cifani C, Amenta F, Tayebati SK. Natural Antioxidant Application on Fat Accumulation: Preclinical Evidence. Antioxidants (Basel) 2021; 10:antiox10060858. [PMID: 34071903 PMCID: PMC8227384 DOI: 10.3390/antiox10060858] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Revised: 05/20/2021] [Accepted: 05/24/2021] [Indexed: 12/24/2022] Open
Abstract
Obesity represents one of the most important challenges in the contemporary world that must be overcome. Different pathological consequences of these physical conditions have been studied for more than 30 years. The most nagging effects were found early in the cardiovascular system. However, later, its negative impact was also investigated in several other organs. Damage at cellular structures due to overexpression of reactive oxygen species together with mechanisms that cause under-production of antioxidants leads to the development of obesity-related complications. In this view, the negative results of oxidant molecules due to obesity were studied in various districts of the body. In the last ten years, scientific literature has reported reasonable evidence regarding natural and synthetic compounds' supplementation, which showed benefits in reducing oxidative stress and inflammatory processes in animal models of obesity. This article attempts to clarify the role of oxidative stress due to obesity and the opposing role of antioxidants to counter it, reported in preclinical studies. This analysis aims to clear-up different mechanisms that lead to the build-up of pro-oxidants during obesity and how various molecules of different origins hinder this phenomenon, behaving as antioxidants.
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Affiliation(s)
- Proshanta Roy
- School of Biosciences and Veterinary Medicine, University of Camerino, 62032 Camerino, Italy; (P.R.); (D.T.)
| | - Daniele Tomassoni
- School of Biosciences and Veterinary Medicine, University of Camerino, 62032 Camerino, Italy; (P.R.); (D.T.)
| | - Enea Traini
- School of Pharmacy, University of Camerino, 62032 Camerino, Italy; (E.T.); (I.M.); (M.V.M.D.B.); (C.C.); (F.A.)
| | - Ilenia Martinelli
- School of Pharmacy, University of Camerino, 62032 Camerino, Italy; (E.T.); (I.M.); (M.V.M.D.B.); (C.C.); (F.A.)
| | | | - Carlo Cifani
- School of Pharmacy, University of Camerino, 62032 Camerino, Italy; (E.T.); (I.M.); (M.V.M.D.B.); (C.C.); (F.A.)
| | - Francesco Amenta
- School of Pharmacy, University of Camerino, 62032 Camerino, Italy; (E.T.); (I.M.); (M.V.M.D.B.); (C.C.); (F.A.)
| | - Seyed Khosrow Tayebati
- School of Pharmacy, University of Camerino, 62032 Camerino, Italy; (E.T.); (I.M.); (M.V.M.D.B.); (C.C.); (F.A.)
- Correspondence:
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