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Peltonen H, Erkkola M, Abdollahi AM, Leppänen MH, Roos E, Sajaniemi N, Pajari AM, Vepsäläinen H. Associations of dietary patterns with common infections and antibiotic use among Finnish preschoolers. Food Nutr Res 2023; 67:8997. [PMID: 37351020 PMCID: PMC10284098 DOI: 10.29219/fnr.v67.8997] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Revised: 03/20/2023] [Accepted: 05/08/2023] [Indexed: 06/24/2023] Open
Abstract
Background Preschoolers suffer frequently from infections. Although nutrition plays a key role in immune function, very little is known about the impact of overall diet on preschoolers' infections. Objective To assess the associations between dietary patterns, common infections and antibiotic use among Finnish preschoolers. Design The study included 721 3-6-year-old preschoolers participating in the cross-sectional DAGIS survey. Parents retrospectively reported the number of common colds, gastroenteritis episodes and antibiotic courses their children had acquired during the past year. Food consumption outside preschool hours was recorded using a food frequency questionnaire. Dietary patterns were derived from the consumption frequencies using principal component analysis. Associations between the thirds of the dietary pattern scores and the outcomes were analysed using logistic and negative binomial regression models. Results Prevalence of common colds was lower in moderate and high adherence to the sweets-and-treats pattern than in low adherence (prevalence ratio [PR]: 0.89, 95% confidence interval [CI]: 0.80-1.00, and PR: 0.88, 95% CI: 0.79-0.99, respectively) and higher in high adherence to the health-conscious pattern than in low adherence (PR: 1.13, 95% CI: 1.01-1.27) after adjusting for age, sex, number of children living in the same household, frequency of preschool attendance, family's highest education and probiotic use. The risk of ≥1 gastroenteritis episode and the prevalence of antibiotic courses were lower in moderate adherence to the sweets-and-treats pattern than in low adherence (odds ratio [OR]: 0.63, 95% CI: 0.44-0.92 and PR: 0.77, 95% CI: 0.59-1.00, respectively). Conclusions The results were unexpected. Parents who were most health-conscious of their children's diet might also have been more aware of their children's illness.
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Affiliation(s)
- Henna Peltonen
- Department of Food and Nutrition, University of Helsinki, Helsinki, Finland
| | - Maijaliisa Erkkola
- Department of Food and Nutrition, University of Helsinki, Helsinki, Finland
| | - Anna M. Abdollahi
- Department of Food and Nutrition, University of Helsinki, Helsinki, Finland
| | - Marja H. Leppänen
- Folkhälsan Research Center, Helsinki, Finland
- Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Eva Roos
- Folkhälsan Research Center, Helsinki, Finland
- Faculty of Medicine, University of Helsinki, Helsinki, Finland
- Department of Food Studies, Nutrition and Dietetics, Uppsala University, Uppsala, Sweden
| | - Nina Sajaniemi
- Philosophical Faculty, School of Applied Educational Science and Teacher Education, University of Eastern Finland, Joensuu, Finland
| | - Anne-Maria Pajari
- Department of Food and Nutrition, University of Helsinki, Helsinki, Finland
| | - Henna Vepsäläinen
- Department of Food and Nutrition, University of Helsinki, Helsinki, Finland
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2
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Hasegawa Y, Bolling BW. Yogurt consumption for improving immune health. Curr Opin Food Sci 2023. [DOI: 10.1016/j.cofs.2023.101017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/13/2023]
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3
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Jańczuk A, Brodziak A, Czernecki T, Król J. Lactoferrin-The Health-Promoting Properties and Contemporary Application with Genetic Aspects. Foods 2022; 12:foods12010070. [PMID: 36613286 PMCID: PMC9818722 DOI: 10.3390/foods12010070] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Revised: 12/19/2022] [Accepted: 12/19/2022] [Indexed: 12/24/2022] Open
Abstract
The aim of the study is to present a review of literature data on lactoferrin's characteristics, applications, and multiple health-promoting properties, with special regard to nutrigenomics and nutrigenetics. The article presents a new approach to food ingredients. Nowadays, lactoferrin is used as an ingredient in food but mainly in pharmaceuticals and cosmetics. In the European Union, bovine lactoferrin has been legally approved for use as a food ingredient since 2012. However, as our research shows, it is not widely used in food production. The major producers of lactoferrin and the few available food products containing it are listed in the article. Due to anti-inflammatory, antibacterial, antiviral, immunomodulatory, antioxidant, and anti-tumour activity, the possibility of lactoferrin use in disease prevention (as a supportive treatment in obesity, diabetes, as well as cardiovascular diseases, including iron deficiency and anaemia) is reported. The possibility of targeted use of lactoferrin is also presented. The use of nutrition genomics, based on the identification of single nucleotide polymorphisms in genes, for example, FTO, PLIN1, TRAP2B, BDNF, SOD2, SLC23A1, LPL, and MTHFR, allows for the effective stratification of people and the selection of the most optimal bioactive nutrients, including lactoferrin, whose bioactive potential cannot be considered without taking into account the group to which they will be given.
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Affiliation(s)
- Anna Jańczuk
- Department of Quality Assessment and Processing of Animal Products, Faculty of Animal Sciences and Bioeconomy, University of Life Sciences in Lublin, Akademicka 13, 20-950 Lublin, Poland
| | - Aneta Brodziak
- Department of Quality Assessment and Processing of Animal Products, Faculty of Animal Sciences and Bioeconomy, University of Life Sciences in Lublin, Akademicka 13, 20-950 Lublin, Poland
- Correspondence: ; Tel.: +48-8-1445-6836
| | - Tomasz Czernecki
- Department of Biotechnology, Microbiology and Human Nutrition, Dietitian Service, Faculty of Food Science and Biotechnology, University of Life Sciences in Lublin, Skromna 8, 20-704 Lublin, Poland
| | - Jolanta Król
- Department of Quality Assessment and Processing of Animal Products, Faculty of Animal Sciences and Bioeconomy, University of Life Sciences in Lublin, Akademicka 13, 20-950 Lublin, Poland
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4
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Einerhand AWC, van Loo-Bouwman CA, Weiss GA, Wang C, Ba G, Fan Q, He B, Smit G. Can Lactoferrin, a Natural Mammalian Milk Protein, Assist in the Battle against COVID-19? Nutrients 2022; 14:nu14245274. [PMID: 36558432 PMCID: PMC9782828 DOI: 10.3390/nu14245274] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 11/30/2022] [Accepted: 12/06/2022] [Indexed: 12/14/2022] Open
Abstract
Notwithstanding mass vaccination against specific SARS-CoV-2 variants, there is still a demand for complementary nutritional intervention strategies to fight COVID-19. The bovine milk protein lactoferrin (LF) has attracted interest of nutraceutical, food and dairy industries for its numerous properties-ranging from anti-viral and anti-microbial to immunological-making it a potential functional ingredient in a wide variety of food applications to maintain health. Importantly, bovine LF was found to exert anti-viral activities against several types of viruses, including certain SARS-CoV-2 variants. LF's potential effect on COVID-19 patients has seen a rapid increase of in vitro and in vivo studies published, resulting in a model on how LF might play a role during different phases of SARS-CoV-2 infection. Aim of this narrative review is two-fold: (1) to highlight the most relevant findings concerning LF's anti-viral, anti-microbial, iron-binding, immunomodulatory, microbiota-modulatory and intestinal barrier properties that support health of the two most affected organs in COVID-19 patients (lungs and gut), and (2) to explore the possible underlying mechanisms governing its mode of action. Thanks to its potential effects on health, bovine LF can be considered a good candidate for nutritional interventions counteracting SARS-CoV-2 infection and related COVID-19 pathogenesis.
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Affiliation(s)
| | | | | | - Caiyun Wang
- Inner Mongolia Dairy Technology Research Institute Co., Ltd., Hohhot 010110, China
| | - Genna Ba
- Inner Mongolia Yili Industrial Group Co., Ltd., Hohhot 010110, China
| | - Qicheng Fan
- Inner Mongolia Yili Industrial Group Co., Ltd., Hohhot 010110, China
| | - Baoping He
- Inner Mongolia Yili Industrial Group Co., Ltd., Hohhot 010110, China
| | - Gerrit Smit
- Yili Innovation Center Europe, 6708 WH Wageningen, The Netherlands
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5
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Miyakawa M, Oda H, Tanaka M. Clinical research review: usefulness of bovine lactoferrin in child health. Biometals 2022; 36:473-489. [PMID: 35941293 PMCID: PMC10182119 DOI: 10.1007/s10534-022-00430-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Accepted: 07/29/2022] [Indexed: 11/28/2022]
Abstract
Lactoferrin (LF) is abundant in human milk and plays an important role in the health of children. Bovine LF (bLF) has high homology with human LF and has been reported to have multiple biological functions. Several clinical studies have been conducted considering these properties, which reported the usefulness of bLF. This review was aimed to provide an overview of the clinical evidence in children. We searched clinical reports investigating the effects of bLF in children and identified 36 studies on the role of bLF in infections, iron metabolism, body growth, cerebral development, and fecal microbiome. Considering the accumulated evidence, bLF may contribute to the child health, particularly by suppressing or alleviating gastrointestinal and respiratory symptoms, and improving the iron status of children with anemia or those at high risk of anemia. The dose of bLF varies depending on the expected effect and target age, but may not necessarily have to be as high as human LF in human milk. Some of the beneficial effects of bLF have not been fully validated due to limited clinical evidence or being observed in the secondary analysis of some studies. Further clinical evidence would add significant value to the use of bLF in child health.
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Affiliation(s)
- Momoko Miyakawa
- Food Ingredients and Technology Institute, R&D Division, Morinaga Milk Industry, Co., Ltd., Zama, Kanagawa, Japan
| | - Hirotsugu Oda
- Food Ingredients and Technology Institute, R&D Division, Morinaga Milk Industry, Co., Ltd., Zama, Kanagawa, Japan.
| | - Miyuki Tanaka
- Food Ingredients and Technology Institute, R&D Division, Morinaga Milk Industry, Co., Ltd., Zama, Kanagawa, Japan
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6
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Darmawan KK, Karagiannis TC, Hughes JG, Small DM, Hung A. Molecular modeling of lactoferrin for food and nutraceutical applications: insights from in silico techniques. Crit Rev Food Sci Nutr 2022; 63:9074-9097. [PMID: 35503258 DOI: 10.1080/10408398.2022.2067824] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Lactoferrin is a protein, primarily found in milk that has attracted the interest of the food industries due to its health properties. Nevertheless, the instability of lactoferrin has limited its commercial application. Recent studies have focused on encapsulation to enhance the stability of lactoferrin. However, the molecular insights underlying the changes of structural properties of lactoferrin and the interaction with protectants remain poorly understood. Computational approaches have proven useful in understanding the structural properties of molecules and the key binding with other constituents. In this review, comprehensive information on the structure and function of lactoferrin and the binding with various molecules for food purposes are reviewed, with a special emphasis on the use of molecular dynamics simulations. The results demonstrate the application of modeling and simulations to determine key residues of lactoferrin responsible for its stability and interactions with other biomolecular components under various conditions, which are also associated with its functional benefits. These have also been extended into the potential creation of enhanced lactoferrin for commercial purposes. This review provides valuable strategies in designing novel nutraceuticals for food science practitioners and those who have interests in acquiring familiarity with the application of computational modeling for food and health purposes.
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Affiliation(s)
- Kevion K Darmawan
- School of Science, STEM College, RMIT University, Melbourne, Australia
| | - Tom C Karagiannis
- Epigenomic Medicine, Department of Diabetes, Central Clinical School, Monash University, Melbourne, Australia
- Department of Clinical Pathology, The University of Melbourne, Melbourne, Australia
| | - Jeff G Hughes
- School of Science, STEM College, RMIT University, Melbourne, Australia
| | - Darryl M Small
- School of Science, STEM College, RMIT University, Melbourne, Australia
| | - Andrew Hung
- School of Science, STEM College, RMIT University, Melbourne, Australia
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7
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Sinopoli A, Isonne C, Santoro MM, Baccolini V. The effects of orally administered lactoferrin in the prevention and management of viral infections: A systematic review. Rev Med Virol 2022; 32:e2261. [PMID: 34133812 PMCID: PMC9286571 DOI: 10.1002/rmv.2261] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Accepted: 05/18/2021] [Indexed: 12/24/2022]
Abstract
It has been demonstrated that lactoferrin (LF) plays a role in host defence, but evidence on its potential antiviral property from clinical studies is fragmented. Our systematic review aimed at identifying the effects of orally administered LF against virus infections. The systematic search was conducted on PubMed, Scopus, Web of Science, BioRxiv.org and ClinicalTrials.gov from database inception to 7th January 2021. Eligible articles investigated any virus family and provided data on the effects of orally administered LF of any origin in the prevention and/or management of confirmed viral infections in people of any age. A narrative synthesis of the results was performed. Quality was assessed with the Cochrane Risk-Of-Bias and ROBINS-1 tools. A total of 27 records were included, nine of which were registered protocols. We found data on Flaviviridae (n = 10), Retroviridae (n = 3), Coronaviridae (n = 2), Reoviridae (n = 2) and Caliciviridae (n = 1). Most published trials were at high risk of bias. The findings were heterogeneous across and within viral families regarding virological, immunological and biological response, with no clear conclusion. Some weak but positive results were reported about decrease of symptom severity and duration, or reduction in viral loads. Despite high tolerability, the effects of LF as oral supplement are still inconsistent, both in preventing and managing viral infections. Small sample sizes, variety in recruitment and treatment protocols, and low study quality may have contributed to such heterogeneity. Better-designed studies are needed to further investigate its potential benefits against viral infections, including SARS-CoV-2.
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Affiliation(s)
- Alessandra Sinopoli
- Department of PreventionLocal Health Unit Roma 1RomeItaly
- Department of Experimental MedicineUniversity of Rome “Tor Vergata”RomeItaly
| | - Claudia Isonne
- Department of Public Health and Infectious DiseasesSapienza University of RomeRomeItaly
| | | | - Valentina Baccolini
- Department of Public Health and Infectious DiseasesSapienza University of RomeRomeItaly
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8
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Presti S, Manti S, Parisi GF, Papale M, Barbagallo IA, Li Volti G, Leonardi S. Lactoferrin: Cytokine Modulation and Application in Clinical Practice. J Clin Med 2021; 10:jcm10235482. [PMID: 34884183 PMCID: PMC8658270 DOI: 10.3390/jcm10235482] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Revised: 11/18/2021] [Accepted: 11/20/2021] [Indexed: 12/26/2022] Open
Abstract
Multiple properties of lactoferrin have been reported in the literature so far. Decades of in vitro and in vivo studies have demonstrated the important antimicrobial, anti-inflammatory, anti-oxidant, and immunomodulating properties. It suggests the use of lactoferrin as an effective and safe option for the treatment of several common disorders. Herein, we show the applications of lactoferrin in clinical practice, highlighting its evidence-based capacities for the treatment of heterogeneous disorders, such as allergic, gastrointestinal, and respiratory diseases, and hematologic, oncologic, gynecologic, dermatologic, and dental disorders. Moreover, the widespread use of lactoferrin in neonatology is summarized here. As a result of its antiviral properties, lactoferrin has also been proposed as a valid option for the treatment for COVID-19 patients. Here, the uses of lactoferrin in clinical practice as a new, safe, and evidence-based treatment for many types of disorders are summarized.
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Affiliation(s)
- Santiago Presti
- Pediatric Pulmonology Unit, Department of Clinical and Experimental Medicine, University of Catania, 95121 Catania, Italy; (S.P.); (S.M.); (G.F.P.); (M.P.); (S.L.)
| | - Sara Manti
- Pediatric Pulmonology Unit, Department of Clinical and Experimental Medicine, University of Catania, 95121 Catania, Italy; (S.P.); (S.M.); (G.F.P.); (M.P.); (S.L.)
| | - Giuseppe Fabio Parisi
- Pediatric Pulmonology Unit, Department of Clinical and Experimental Medicine, University of Catania, 95121 Catania, Italy; (S.P.); (S.M.); (G.F.P.); (M.P.); (S.L.)
| | - Maria Papale
- Pediatric Pulmonology Unit, Department of Clinical and Experimental Medicine, University of Catania, 95121 Catania, Italy; (S.P.); (S.M.); (G.F.P.); (M.P.); (S.L.)
| | | | - Giovanni Li Volti
- Department of Biomedical and Biotechnological Sciences, University of Catania, 95121 Catania, Italy
- Correspondence: ; Tel.: +39-095-4781157
| | - Salvatore Leonardi
- Pediatric Pulmonology Unit, Department of Clinical and Experimental Medicine, University of Catania, 95121 Catania, Italy; (S.P.); (S.M.); (G.F.P.); (M.P.); (S.L.)
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9
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Brink LR, Chichlowski M, Pastor N, Thimmasandra Narayanappa A, Shah N. In the Age of Viral Pandemic, Can Ingredients Inspired by Human Milk and Infant Nutrition Be Repurposed to Support the Immune System? Nutrients 2021; 13:870. [PMID: 33800961 PMCID: PMC7999376 DOI: 10.3390/nu13030870] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2021] [Revised: 02/27/2021] [Accepted: 03/01/2021] [Indexed: 12/14/2022] Open
Abstract
In 2020, with the advent of a pandemic touching all aspects of global life, there is a renewed interest in nutrition solutions to support the immune system. Infants are vulnerable to infection and breastfeeding has been demonstrated to provide protection. As such, human milk is a great model for sources of functional nutrition ingredients, which may play direct roles in protection against viral diseases. This review aims to summarize the literature around human milk (lactoferrin, milk fat globule membrane, osteopontin, glycerol monolaurate and human milk oligosaccharides) and infant nutrition (polyunsaturated fatty acids, probiotics and postbiotics) inspired ingredients for support against viral infections and the immune system more broadly. We believe that the application of these ingredients can span across all life stages and thus apply to both pediatric and adult nutrition. We highlight the opportunities for further research in this field to help provide tangible nutrition solutions to support one's immune system and fight against infections.
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Affiliation(s)
- Lauren R. Brink
- Medical and Scientific Affairs, Nutrition, Reckitt Benckiser, Evansville, IN 47721, USA; (M.C.); (N.P.)
| | - Maciej Chichlowski
- Medical and Scientific Affairs, Nutrition, Reckitt Benckiser, Evansville, IN 47721, USA; (M.C.); (N.P.)
| | - Nitida Pastor
- Medical and Scientific Affairs, Nutrition, Reckitt Benckiser, Evansville, IN 47721, USA; (M.C.); (N.P.)
| | | | - Neil Shah
- Medical and Scientific Affairs, Nutrition, Reckitt Benckiser, Slough SL1 3UH, UK;
- University College London, Great Ormond Street, London WC1N 3JH, UK
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10
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Mizuki M, Tsukahara T, Oda H, Tanaka M, Yamauchi K, Abe F, Nomiyama T. Effects of Lactoferrin on Prevention of Acute Gastrointestinal Symptoms in Winter: A Randomized, Double-Blinded, Placebo-Controlled Trial for Staff of Kindergartens and Nursery Schools in Japan. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:ijerph17249582. [PMID: 33371454 PMCID: PMC7767418 DOI: 10.3390/ijerph17249582] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Revised: 12/16/2020] [Accepted: 12/17/2020] [Indexed: 12/24/2022]
Abstract
This study investigated the preventive effects of lactoferrin (LF) on subjective acute gastrointestinal symptoms during the winter in a randomized, double-blinded, placebo-controlled parallel-group comparative trial. The eligible subjects were healthy adults working at kindergartens and nursery schools. We randomized the subjects to the Placebo group (0 mg/day), the Low LF group (200 mg/day), and the High LF group (600 mg/day) for 12 weeks. The prevalence of acute gastrointestinal symptoms was significantly lower in the High LF (13/112 vs. 26/116; p = 0.030) and the Low LF (13/107 vs. 26/116; p = 0.040) groups than in the Placebo group. The adjusted odds ratio for the prevalence of acute gastrointestinal symptoms was 2.78 (95% CI: 1.19–6.47) in the Placebo group compared with the High LF group. LF is useful to prevent acute gastrointestinal symptoms among childcare workers, who mainly consist of women.
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Affiliation(s)
- Masaru Mizuki
- Department of Occupational Medicine, School of Medicine, Shinshu University, 3-1-1 Asahi, Matsumoto, Nagano 390-8621, Japan; (M.M.); (T.N.)
- Department of Preventive Medicine and Public Health, School of Medicine, Shinshu University, 3-1-1 Asahi, Matsumoto, Nagano 390-8621, Japan
| | - Teruomi Tsukahara
- Department of Occupational Medicine, School of Medicine, Shinshu University, 3-1-1 Asahi, Matsumoto, Nagano 390-8621, Japan; (M.M.); (T.N.)
- Department of Preventive Medicine and Public Health, School of Medicine, Shinshu University, 3-1-1 Asahi, Matsumoto, Nagano 390-8621, Japan
- Correspondence: ; Tel.: +81-263-37-2622; Fax: +81-263-37-3449
| | - Hirotsugu Oda
- Food Ingredients and Technology Institute, R&D Division, Morinaga Milk Industry Co., Ltd., Zama, Kanagawa 252-8583, Japan; (H.O.); (M.T.); (K.Y.); (F.A.)
| | - Miyuki Tanaka
- Food Ingredients and Technology Institute, R&D Division, Morinaga Milk Industry Co., Ltd., Zama, Kanagawa 252-8583, Japan; (H.O.); (M.T.); (K.Y.); (F.A.)
| | - Koji Yamauchi
- Food Ingredients and Technology Institute, R&D Division, Morinaga Milk Industry Co., Ltd., Zama, Kanagawa 252-8583, Japan; (H.O.); (M.T.); (K.Y.); (F.A.)
| | - Fumiaki Abe
- Food Ingredients and Technology Institute, R&D Division, Morinaga Milk Industry Co., Ltd., Zama, Kanagawa 252-8583, Japan; (H.O.); (M.T.); (K.Y.); (F.A.)
| | - Tetsuo Nomiyama
- Department of Occupational Medicine, School of Medicine, Shinshu University, 3-1-1 Asahi, Matsumoto, Nagano 390-8621, Japan; (M.M.); (T.N.)
- Department of Preventive Medicine and Public Health, School of Medicine, Shinshu University, 3-1-1 Asahi, Matsumoto, Nagano 390-8621, Japan
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