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Jeong H, Park YS, Yoon SS. A2 milk consumption and its health benefits: an update. Food Sci Biotechnol 2024; 33:491-503. [PMID: 38274187 PMCID: PMC10806982 DOI: 10.1007/s10068-023-01428-5] [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: 07/05/2023] [Revised: 08/26/2023] [Accepted: 08/30/2023] [Indexed: 01/27/2024] Open
Abstract
Milk is a widely consumed nutrient-rich food containing protein variants such as casein A2 and A1. A1 differs from A2 in an amino acid at position 67 (Pro67 to His67). The breakdown of β-casein yields β-casomorphins (BCM), among which BCM-7 is extensively studied for its effects on the human body. Animal studies have shown that A1 β-casein milk increases digestive transit time and enhances myeloperoxidase activity. Individuals with lactose intolerance prefer A2 milk to conventional A1 milk, as BCM-7 in A1 milk can lead to inflammation and discomfort in sensitive individuals. A2 milk, which contains A2 β-casein, is believed to be more easily digestible than A1 β-casein. Its popularity has grown owing to reports linking A1 casein to diseases such as type 1 diabetes, heart disease, and autism. A2 milk has gained popularity as an alternative to A1 milk, primarily because of its potential benefits for individuals with certain diseases. This review aims to provide an updated understanding of A2 milk consumption and its health benefits. This review aims to provide an updated understanding of A2 milk consumption and its health benefits.
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Affiliation(s)
- Huijin Jeong
- Department of Food Science and Biotechnology, Gachon University, Seongnam, 13120 Republic of Korea
| | - Young-Seo Park
- Department of Food Science and Biotechnology, Gachon University, Seongnam, 13120 Republic of Korea
| | - Sung-Sik Yoon
- Division of Biological Science and Technology, Yonsei University, Wonju, 26493 Republic of Korea
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2
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Casini F, Scaltrito F, Grimaldi MT, Pop TL, Calcaterra V, Zuccotti GV, Pettoello-Mantovani M, Ferrara P, Corsello G, Fabiano V. Use of complementary and alternative medicine in children affected by oncologic, neurologic and liver diseases: a narrative review. Ital J Pediatr 2023; 49:152. [PMID: 37968663 PMCID: PMC10647067 DOI: 10.1186/s13052-023-01554-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Accepted: 10/20/2023] [Indexed: 11/17/2023] Open
Abstract
Complementary and alternative medicine (CAM) consist of a broad group of restorative resources often linked to existing local cultures and established health care systems and are also increasingly used in children with some serious illnesses. In this narrative review, we examine the epidemiology of the use, efficacy, and safety of complementary and alternative medicine in pediatric oncology, neurology, and hepatology. We searched for relevant articles published in Pubmed evaluating CAM use and its efficacy in safety in children affected by oncologic, neurologic and liver diseases. CAM is used to improve the success of conventional therapies, but also to alleviate the pain, discomfort, and suffering resulting from the diseases and their treatment, which are often associated with a significant burden of adverse effects. CAM use must be evaluated in children with neurological, oncological and liver diseases.
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Affiliation(s)
- Francesca Casini
- Pediatric Department, University of Milan, "V. Buzzi" Children's Hospital, 20154, Milan, Italy
| | - Francesca Scaltrito
- Department of Medical and Surgical Sciences, University of Foggia, Foggia, Italy
| | | | - Tudor Lucian Pop
- 2Nd Pediatric Discipline, Department of Mother and Child, Center of Expertise in Pediatric Liver Rare Diseases, Iuliu Hatieganu University of Medicine and Pharmacy2Nd Pediatric ClinicEmergency Clinical Hospital for Children Cluj-Napoca, Cluj-Napoca, Romania
- European Pediatric Association-Union of National European Pediatric Societies and Associations, Berlin, Germany
| | - Valeria Calcaterra
- Pediatric Department, University of Milan, "V. Buzzi" Children's Hospital, 20154, Milan, Italy
- Department of Internal Medicine, University of Pavia, 27100, Pavia, Italy
| | - Gian Vincenzo Zuccotti
- Pediatric Department, University of Milan, "V. Buzzi" Children's Hospital, 20154, Milan, Italy
- Department of Biomedical and Clinical Sciences, University of Milan, 20157, Milan, Italy
| | - Massimo Pettoello-Mantovani
- Department of Medical and Surgical Sciences, University of Foggia, Foggia, Italy
- European Pediatric Association-Union of National European Pediatric Societies and Associations, Berlin, Germany
| | - Pietro Ferrara
- Department of Medicine and Surgery, University Campus Bio-Medico, Rome, Italy
- Operative Research Unit of Pediatrics, Fondazione Policlinico Universitario Campus Bio-Medico, Rome, Italy
| | | | - Valentina Fabiano
- Pediatric Department, University of Milan, "V. Buzzi" Children's Hospital, 20154, Milan, Italy.
- Department of Biomedical and Clinical Sciences, University of Milan, 20157, Milan, Italy.
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de Vasconcelos ML, Oliveira LMFS, Hill JP, Vidal AMC. Difficulties in Establishing the Adverse Effects of β-Casomorphin-7 Released from β-Casein Variants-A Review. Foods 2023; 12:3151. [PMID: 37685085 PMCID: PMC10486734 DOI: 10.3390/foods12173151] [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: 07/14/2023] [Revised: 08/04/2023] [Accepted: 08/16/2023] [Indexed: 09/10/2023] Open
Abstract
β-Casomorphin-7 (BCM-7) is a peptide released through the proteolysis of β-casein (β-CN), which is considered a bioactive peptide displaying evidence of promoting the binding and activation of the μ-opioid receptor located in various body parts, such as the gastrointestinal tract, the immune system and potentially the central nervous system. The possible effects of BCM-7 on health are a theme rising in popularity due to evidence found in several studies on the modulation of gastrointestinal proinflammatory responses that can trigger digestive symptoms, such as abdominal discomfort. With the advancement of studies, the hypothesis that there is a correlation of the possible effects of BCM-7 with the microbiota-gut-brain axis has been established. However, some studies have suggested the possibility that these adverse effects are restricted to a portion of the population, and the topic is controversial due to the small number of in vivo studies, which makes it difficult to obtain more conclusive results. In addition, a threshold of exposure to BCM-7 has not yet been established to clarify the potential of this peptide to trigger physiological responses at gastrointestinal and systemic levels. The proportion of the population that can be considered more susceptible to the effects of BCM-7 are evidenced in the literature review. The challenges of establishing the adverse effects of BCM-7 are discussed, including the importance of quantifying the BCM-7 release in the different β-CN genotypes. In summary, the reviewed literature provides plausible indications of the hypothesis of a relationship between β-CN A1/BCM-7 and adverse health effects; however, there is need for further, especially in vivo studies, to better understand and confirm the physiological effects of this peptide.
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Affiliation(s)
- Marta Liliane de Vasconcelos
- Department of Veterinary Medicine, Faculty of Animal Science and Food Engineering, University of São Paulo, Pirassununga 13635-900, SP, Brazil; (M.L.d.V.); (L.M.F.S.O.)
| | - Luisa Maria F. S. Oliveira
- Department of Veterinary Medicine, Faculty of Animal Science and Food Engineering, University of São Paulo, Pirassununga 13635-900, SP, Brazil; (M.L.d.V.); (L.M.F.S.O.)
| | - Jeremy Paul Hill
- Department Sustainable Nutrition Initiative, Riddet Institute, Palmerston North, New Zealand, and Fonterra Research & Development Centre, Palmerston North 4472, New Zealand;
| | - Ana Maria Centola Vidal
- Department of Veterinary Medicine, Faculty of Animal Science and Food Engineering, University of São Paulo, Pirassununga 13635-900, SP, Brazil; (M.L.d.V.); (L.M.F.S.O.)
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Cieślińska A, Fiedorowicz E, Rozmus D, Sienkiewicz-Szłapka E, Jarmołowska B, Kamiński S. Does a Little Difference Make a Big Difference? Bovine β-Casein A1 and A2 Variants and Human Health-An Update. Int J Mol Sci 2022; 23:15637. [PMID: 36555278 PMCID: PMC9779325 DOI: 10.3390/ijms232415637] [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: 11/12/2022] [Revised: 12/01/2022] [Accepted: 12/05/2022] [Indexed: 12/14/2022] Open
Abstract
For over 20 years, bovine beta-casein has been a subject of increasing scientific interest because its genetic A1 variant during gastrointestinal digestion releases opioid-like peptide β-casomorphin-7 (β-CM-7). Since β-CM-7 is involved in the dysregulation of many physiological processes, there is a growing discussion of whether the consumption of the β-casein A1 variant has an influence on human health. In the last decade, the number of papers dealing with this problem has substantially increased. The newest clinical studies on humans showed a negative effect of variant A1 on serum glutathione level, digestive well-being, cognitive performance score in children, and mood score in women. Scientific reports in this field can affect the policies of dairy cattle breeders and the milk industry, leading to the elimination of allele A1 in dairy cattle populations and promoting milk products based on milk from cows with the A2A2 genotype. More scientific proof, especially in well-designed clinical studies, is necessary to determine whether a little difference in the β-casein amino acid sequence negatively affects the health of milk consumers.
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Affiliation(s)
- Anna Cieślińska
- Department of Biochemistry, Faculty of Biology and Biotechnology, University of Warmia and Mazury, 10-719 Olsztyn, Poland
| | - Ewa Fiedorowicz
- Department of Biochemistry, Faculty of Biology and Biotechnology, University of Warmia and Mazury, 10-719 Olsztyn, Poland
| | - Dominika Rozmus
- Department of Biochemistry, Faculty of Biology and Biotechnology, University of Warmia and Mazury, 10-719 Olsztyn, Poland
| | - Edyta Sienkiewicz-Szłapka
- Department of Biochemistry, Faculty of Biology and Biotechnology, University of Warmia and Mazury, 10-719 Olsztyn, Poland
| | - Beata Jarmołowska
- Department of Biochemistry, Faculty of Biology and Biotechnology, University of Warmia and Mazury, 10-719 Olsztyn, Poland
| | - Stanisław Kamiński
- Department of Animal Genetics, University of Warmia and Mazury, 10-719 Olsztyn, Poland
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de Vitte K, Kerziene S, Klementavičiūtė J, de Vitte M, Dilbiene V, Stankevičius R. Relationship between β-casein genotypes (A1A1, A1A2, and A2A2) and coagulation properties of milk and the fatty acid composition and sensory characteristics of dairy products (soft cheese, sour cream, and butter). ACTA AGR SCAND A-AN 2022. [DOI: 10.1080/09064702.2022.2141308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Kristina de Vitte
- Gyvūnų mitybos katedra, Faculty of Animal Science, Lithuanian University of Health Sciences, Kaunas, Lithuania
| | - Sigita Kerziene
- Gyvūnų mitybos katedra, Faculty of Animal Science, Lithuanian University of Health Sciences, Kaunas, Lithuania
| | - Jolita Klementavičiūtė
- Gyvūnų auginimo technologijos institutas, Faculty of Animal Science, Lithuanian University of Health Sciences, Kaunas, Lithuania
| | | | - Vaida Dilbiene
- Gyvūnų mitybos katedra, Faculty of Animal Science, Lithuanian University of Health Sciences, Kaunas, Lithuania
| | - Rolandas Stankevičius
- Gyvūnų mitybos katedra, Faculty of Animal Science, Lithuanian University of Health Sciences, Kaunas, Lithuania
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6
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How to adjust α-lactalbumin and β-casein ratio in milk protein formula to give a similar digestion pattern to human milk? J Food Compost Anal 2022. [DOI: 10.1016/j.jfca.2022.104536] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Parashar A, Bhushan V, Mahanandia NC, Kumar S, Mohanty AK. Non-SELEX method for aptamer selection against β-casomorphin-7 peptide. J Dairy Sci 2022; 105:5545-5560. [DOI: 10.3168/jds.2021-21569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Accepted: 03/09/2022] [Indexed: 11/19/2022]
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8
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A Narrative Review about Autism Spectrum Disorders and Exclusion of Gluten and Casein from the Diet. Nutrients 2022; 14:nu14091797. [PMID: 35565765 PMCID: PMC9102850 DOI: 10.3390/nu14091797] [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: 03/09/2022] [Revised: 04/13/2022] [Accepted: 04/22/2022] [Indexed: 11/17/2022] Open
Abstract
Objective: Autism spectrum disorders (ASDs) appear in the early stages of neurodevelopment, and they remain constant throughout life. Currently, due to limitations in ASDs treatment, alternative approaches, such as nutritional interventions, have frequently been implemented. The aim of this narrative review is to gather the most relevant and updated studies about dietary interventions related to ASDs etiopathogenesis. Results: Our literature search focused on the gluten- and casein-free (GFCF) diet. The literature found shows the inexistence of enough scientific evidence to support a general recommendation of dietary intervention in children with ASD. Protocols and procedures for assessing risk and safety are also needed. Future lines: Prospective and controlled research studies with larger sample sizes and longer follow-up times are scarce and needed. In addition, studies considering an assessment of intestinal permeability, bacterial population, enzymatic, and inflammatory gastrointestinal activity are interesting to identify possible responders. Besides brain imaging techniques, genetic tests can also contribute as markers to evaluate the comorbidity of gastrointestinal symptoms.
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9
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Tarnowska K, Gruczyńska-Sękowska E, Kowalska D, Majewska E, Kozłowska M, Winkler R. The opioid excess theory in autism spectrum disorders - is it worth investigating further? Crit Rev Food Sci Nutr 2021:1-14. [PMID: 34702104 DOI: 10.1080/10408398.2021.1996329] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Autism spectrum disorders (ASD) are defined as neurodevelopmental disorders, which are highly variable in nature and do not form a uniform picture, either in terms of symptomatology or depth of the disturbance. Diagnosis of ASD is made for children who show signs of impairment in social interaction, communication and cognitive skills. The exact cause of autism spectrum disorders has not been determined to date. Although there is no cure for ASD, a variety interventions have been proposed. The most commonly used restrictive dietary intervention is the gluten-free casein-free diet (GFCF), which is based on the opioid excess theory. This paper summarizes and discusses research on the core elements of the opioid excess theory in ASD: increased levels of opioid peptides in body fluids in ASD patients, increased intestinal permeability, altered peptidase activity and the effectiveness of GFCF diet in alleviating symptoms of ASD. Furthermore, we discuss the difficulties and their causes in conducting research with ASD patients. The assumptions of the opioid excess theory have neither been definitively confirmed nor disproved. Research in this area should continue, taking into account the highest possible quality standards and the specific needs and abilities of patients with ASD and their families.
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Affiliation(s)
- Katarzyna Tarnowska
- Department of Chemistry, Institute of Food Sciences, Warsaw University of Life Sciences, Warsaw, Poland
| | - Eliza Gruczyńska-Sękowska
- Department of Chemistry, Institute of Food Sciences, Warsaw University of Life Sciences, Warsaw, Poland
| | - Dorota Kowalska
- Department of Chemistry, Institute of Food Sciences, Warsaw University of Life Sciences, Warsaw, Poland
| | - Ewa Majewska
- Department of Chemistry, Institute of Food Sciences, Warsaw University of Life Sciences, Warsaw, Poland
| | - Mariola Kozłowska
- Department of Chemistry, Institute of Food Sciences, Warsaw University of Life Sciences, Warsaw, Poland
| | - Renata Winkler
- Department of Organizational Behaviors, Cracow University of Economics, Cracow, Poland
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10
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Gai N, Uniacke-Lowe T, O’Regan J, Faulkner H, Kelly AL. Effect of Protein Genotypes on Physicochemical Properties and Protein Functionality of Bovine Milk: A Review. Foods 2021; 10:2409. [PMID: 34681458 PMCID: PMC8535582 DOI: 10.3390/foods10102409] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Revised: 09/29/2021] [Accepted: 09/30/2021] [Indexed: 12/05/2022] Open
Abstract
Milk protein comprises caseins (CNs) and whey proteins, each of which has different genetic variants. Several studies have reported the frequencies of these genetic variants and the effects of variants on milk physicochemical properties and functionality. For example, the C variant and the BC haplotype of αS1-casein (αS1-CN), β-casein (β-CN) B and A1 variants, and κ-casein (κ-CN) B variant, are favourable for rennet coagulation, as well as the B variant of β-lactoglobulin (β-lg). κ-CN is reported to be the only protein influencing acid gel formation, with the AA variant contributing to a firmer acid curd. For heat stability, κ-CN B variant improves the heat resistance of milk at natural pH, and the order of heat stability between phenotypes is BB > AB > AA. The A2 variant of β-CN is more efficient in emulsion formation, but the emulsion stability is lower than the A1 and B variants. Foaming properties of milk with β-lg variant B are better than A, but the differences between β-CN A1 and A2 variants are controversial. Genetic variants of milk proteins also influence milk yield, composition, quality and processability; thus, study of such relationships offers guidance for the selection of targeted genetic variants.
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Affiliation(s)
- Nan Gai
- School of Food and Nutritional Sciences, University College Cork, T12 YN60 Cork, Ireland; (N.G.); (T.U.-L.)
| | - Therese Uniacke-Lowe
- School of Food and Nutritional Sciences, University College Cork, T12 YN60 Cork, Ireland; (N.G.); (T.U.-L.)
| | - Jonathan O’Regan
- Nestlé Development Centre Nutrition, Wyeth Nutritionals Ireland, Askeaton, Co., V94 E7P9 Limerick, Ireland; (J.O.); (H.F.)
| | - Hope Faulkner
- Nestlé Development Centre Nutrition, Wyeth Nutritionals Ireland, Askeaton, Co., V94 E7P9 Limerick, Ireland; (J.O.); (H.F.)
| | - Alan L. Kelly
- School of Food and Nutritional Sciences, University College Cork, T12 YN60 Cork, Ireland; (N.G.); (T.U.-L.)
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Bovine β-Casomorphins: Friends or Foes? A comprehensive assessment of evidence from in vitro and ex vivo studies. Trends Food Sci Technol 2021. [DOI: 10.1016/j.tifs.2021.08.003] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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12
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Mori S, Fujiwara-Tani R, Kishi S, Sasaki T, Ohmori H, Goto K, Nakashima C, Nishiguchi Y, Kawahara I, Luo Y, Kuniyasu H. Enhancement of Anti-Tumoral Immunity by β-Casomorphin-7 Inhibits Cancer Development and Metastasis of Colorectal Cancer. Int J Mol Sci 2021; 22:ijms22158232. [PMID: 34360996 PMCID: PMC8348766 DOI: 10.3390/ijms22158232] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Revised: 07/14/2021] [Accepted: 07/28/2021] [Indexed: 01/24/2023] Open
Abstract
β-Casomorphin-7 (BCM) is a degradation product of β-casein, a milk component, and has been suggested to affect the immune system. However, its effect on mucosal immunity, especially anti-tumor immunity, in cancer-bearing individuals is not clear. We investigated the effects of BCM on lymphocytes using an in vitro system comprising mouse splenocytes, a mouse colorectal carcinogenesis model, and a mouse orthotopic colorectal cancer model. Treatment of mouse splenocytes with BCM in vitro reduced numbers of cluster of differentiation (CD) 20+ B cells, CD4+ T cells, and regulatory T cells (Tregs), and increased CD8+ T cells. Administration of BCM and the CD10 inhibitor thiorphan (TOP) to mice resulted in similar alterations in the lymphocyte subsets in the spleen and intestinal mucosa. BCM was degraded in a concentration- and time-dependent manner by the neutral endopeptidase CD10, and the formed BCM degradation product did not affect the lymphocyte counts. Furthermore, degradation was completely suppressed by TOP. In the azoxymethane mouse colorectal carcinogenesis model, the incidence of aberrant crypt foci, adenoma, and adenocarcinoma was reduced by co-treatment with BCM and TOP. Furthermore, when CT26 mouse colon cancer cells were inoculated into the cecum of syngeneic BALB/c mice and concurrently treated with BCM and TOP, infiltration of CD8+ T cells was promoted, and tumor growth and liver metastasis were suppressed. These results suggest that by suppressing the BCM degradation system, the anti-tumor effect of BCM is enhanced and it can suppress the development and progression of colorectal cancer.
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Affiliation(s)
- Shiori Mori
- Department of Molecular Pathology, Nara Medical University, 840 Shijo-cho, Kashihara 634-8521, Japan; (S.M.); (R.F.-T.); (S.K.); (T.S.); (H.O.); (K.G.); (C.N.); (Y.N.); (I.K.)
| | - Rina Fujiwara-Tani
- Department of Molecular Pathology, Nara Medical University, 840 Shijo-cho, Kashihara 634-8521, Japan; (S.M.); (R.F.-T.); (S.K.); (T.S.); (H.O.); (K.G.); (C.N.); (Y.N.); (I.K.)
| | - Shingo Kishi
- Department of Molecular Pathology, Nara Medical University, 840 Shijo-cho, Kashihara 634-8521, Japan; (S.M.); (R.F.-T.); (S.K.); (T.S.); (H.O.); (K.G.); (C.N.); (Y.N.); (I.K.)
| | - Takamitsu Sasaki
- Department of Molecular Pathology, Nara Medical University, 840 Shijo-cho, Kashihara 634-8521, Japan; (S.M.); (R.F.-T.); (S.K.); (T.S.); (H.O.); (K.G.); (C.N.); (Y.N.); (I.K.)
| | - Hitoshi Ohmori
- Department of Molecular Pathology, Nara Medical University, 840 Shijo-cho, Kashihara 634-8521, Japan; (S.M.); (R.F.-T.); (S.K.); (T.S.); (H.O.); (K.G.); (C.N.); (Y.N.); (I.K.)
| | - Kei Goto
- Department of Molecular Pathology, Nara Medical University, 840 Shijo-cho, Kashihara 634-8521, Japan; (S.M.); (R.F.-T.); (S.K.); (T.S.); (H.O.); (K.G.); (C.N.); (Y.N.); (I.K.)
| | - Chie Nakashima
- Department of Molecular Pathology, Nara Medical University, 840 Shijo-cho, Kashihara 634-8521, Japan; (S.M.); (R.F.-T.); (S.K.); (T.S.); (H.O.); (K.G.); (C.N.); (Y.N.); (I.K.)
| | - Yukiko Nishiguchi
- Department of Molecular Pathology, Nara Medical University, 840 Shijo-cho, Kashihara 634-8521, Japan; (S.M.); (R.F.-T.); (S.K.); (T.S.); (H.O.); (K.G.); (C.N.); (Y.N.); (I.K.)
| | - Isao Kawahara
- Department of Molecular Pathology, Nara Medical University, 840 Shijo-cho, Kashihara 634-8521, Japan; (S.M.); (R.F.-T.); (S.K.); (T.S.); (H.O.); (K.G.); (C.N.); (Y.N.); (I.K.)
| | - Yi Luo
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong 226001, China
- Correspondence: (Y.L.); (H.K.)
| | - Hiroki Kuniyasu
- Department of Molecular Pathology, Nara Medical University, 840 Shijo-cho, Kashihara 634-8521, Japan; (S.M.); (R.F.-T.); (S.K.); (T.S.); (H.O.); (K.G.); (C.N.); (Y.N.); (I.K.)
- Correspondence: (Y.L.); (H.K.)
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13
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Baspinar B, Yardimci H. Gluten-Free Casein-Free Diet for Autism Spectrum Disorders: Can It Be Effective in Solving Behavioural and Gastrointestinal Problems? Eurasian J Med 2020; 52:292-297. [PMID: 33209084 PMCID: PMC7651765 DOI: 10.5152/eurasianjmed.2020.19230] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2019] [Accepted: 01/23/2019] [Indexed: 12/11/2022] Open
Abstract
Autism spectrum disorder [ASD] is characterized by deficits in communication and social interactions combined with repetitive and restricted patterns of behaviors. Bidirectional changes in brain-gut microbiota are known to be responsible for the pathophysiology of many brain-related disorders, such as autism, as well as well-known gastrointestinal diseases, including gut disorders. Imbalance in the composition of gut microbiota is frequently observed in individuals with ASD. It is therefore believed that this imbalance is significant in the frequent occurrence of gastrointestinal symptoms. The integrity of the intestinal barrier and the blood-brain barrier [BBB] in individuals with ASD is affected. Incompletely digested peptides, toxins, and proinflammatory cytokines cross the BBB by entering the bloodstream and reach the central nervous system. As a result of the accumulation of these elements, brain function is adversely affected. It is hypothesized that incompletely digested peptides acting as opioid agonists reduce pain sensitivity and increase the severity of autism-specific behaviors. However, it is not known exactly how opioid peptides trigger ASD symptoms after they reach the brain. Diet therapies, especially elimination diets, are considered to be an alternative treatment to prevent this condition. Gluten-free casein-free [GFCF] diet is an elimination diet that involves the removal of certain proteins from the normal diet, such as gluten and casein. However, studies that demonstrate the beneficial effects of the GFCF diet on ASD patients and explain its mechanism is limited, which supports the opioid theory. This review aims to investigate the gastrointestinal and behavioral problems that are frequently observed in ASD, the possible action mechanisms of GFCF diets, and the efficacy of these elimination diets.
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Affiliation(s)
- Busra Baspinar
- Department of Nutrition and Dietetics, Ankara University Faculty of Health Sciences, Ankara, Turkey
| | - Hulya Yardimci
- Department of Nutrition and Dietetics, Ankara University Faculty of Health Sciences, Ankara, Turkey
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14
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González-Domenech PJ, Díaz Atienza F, García Pablos C, Fernández Soto ML, Martínez-Ortega JM, Gutiérrez-Rojas L. Influence of a Combined Gluten-Free and Casein-Free Diet on Behavior Disorders in Children and Adolescents Diagnosed with Autism Spectrum Disorder: A 12-Month Follow-Up Clinical Trial. J Autism Dev Disord 2020; 50:935-948. [PMID: 31813108 DOI: 10.1007/s10803-019-04333-1] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The use of alternative interventions, such as gluten-free and casein-free (GFCF) diets, is frequent due to limited therapies for Autism Spectrum Disorder (ASD). Our aims were to determine the influence of a GFCF diet on behavior disorders in children and adolescents diagnosed with ASD and the potential association with urinary beta-casomorphin concentrations. Thirty-seven patients were recruited for this crossover trial. Each patient consumed a normal diet (including gluten and casein) for 6 months and a GFCF diet for another 6 months. The order of the intervention (beginning with normal diet or with GFCF diet) was assigned randomly. Patients were evaluated at three time-points (at the beginning of the study, after normal diet and after GFCF diet). Questionnaires regarding behavior and autism and dietary adherence were completed and urinary beta-casomorphin concentrations were determined at each time-point. No significant behavioral changes and no association with urinary beta-casomorphin concentrations were found after GFCF diet. A 6-month GFCF diet do not induce significant changes in behavioral symptoms of autism and urinary beta-casomorphin concentrations. Further studies with a long follow-up period similar to ours and including placebo and blinding elements are needed to identify better those respondents to GFCF diets.
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Affiliation(s)
- Pablo José González-Domenech
- Child and Adolescent Mental Health Unit, Virgen de las Nieves University Hospital, Granada, Spain.,Department of Psychiatry, University of Granada, Granada, Spain
| | - Francisco Díaz Atienza
- Child and Adolescent Mental Health Unit, Virgen de las Nieves University Hospital, Granada, Spain
| | - Carlos García Pablos
- Child and Adolescent Mental Health Unit, Virgen de las Nieves University Hospital, Granada, Spain
| | | | | | - Luis Gutiérrez-Rojas
- Department of Psychiatry, University of Granada, Granada, Spain. .,Psychiatry Service, Hospital Clínico San Cecilio, Granada, Spain. .,CTS-549 Research Group, Institute of Neuroscience, Granada, Spain.
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15
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Summer A, Di Frangia F, Ajmone Marsan P, De Noni I, Malacarne M. Occurrence, biological properties and potential effects on human health of β-casomorphin 7: Current knowledge and concerns. Crit Rev Food Sci Nutr 2020; 60:3705-3723. [PMID: 32033519 DOI: 10.1080/10408398.2019.1707157] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The genetic variant A1 of bovine β-casein (β-Cn) presents a His residue at a position 67 of the mature protein. This feature makes the Ile66-His67 bond more vulnerable to enzymatic cleavage, determining the release of the peptide β-Cn f(60-66), named β-casomorphin 7 (BCM7). BCM7 is an opioid-agonist for μ receptors, and it has been hypothesized to be involved in the development of different non-transmissible diseases in humans. In the last decade, studies have provided additional results on the potential health impact of β-Cn A1 and BCM7. These studies, here reviewed, highlighted a relation between the consumption of β-Cn A1 (and its derivative BCM7) and the increase of inflammatory response as well as discomfort at the gastrointestinal level. Conversely, the role of BCM7 and the effects of ingestion of β-Cn A1 on the onset or worsening of other non-transmissible diseases as caused or favored by still need proof of evidence. Overall, the reviewed literature demonstrates that the "β-Cn A1/BCM7 issue" remains an intriguing but not exhaustively explained topic in human nutrition. On this basis, policies in favor of breeding for β-Cn variants not releasing BCM7 and consumption of "A1-like" milk appear not yet sound for a healthier and safer nutrition.
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Affiliation(s)
- Andrea Summer
- Department of Veterinary Sciences, Università di Parma, Parma, Italy
| | | | - Paolo Ajmone Marsan
- Department of Animal Science, Food and Nutrition (DIANA) and Nutrigenomics and Proteomics Research Center (PRONUTRIGEN), Università Cattolica del Sacro Cuore, Piacenza, Italy
| | - Ivano De Noni
- Department of Food, Environmental and Nutritional Sciences (DeFENS), Università degli Studi di Milano, Milan, Italy
| | - Massimo Malacarne
- Department of Veterinary Sciences, Università di Parma, Parma, Italy
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16
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Frequencies Evaluation of β-Casein Gene Polymorphisms in Dairy Cows Reared in Central Italy. Animals (Basel) 2020; 10:ani10020252. [PMID: 32033348 PMCID: PMC7070732 DOI: 10.3390/ani10020252] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Revised: 01/27/2020] [Accepted: 02/01/2020] [Indexed: 01/03/2023] Open
Abstract
Simple Summary Bovine milk contains several β-casein variants, with the A1 and A2 variants occurring most frequently. The presence of some variants, such as A1, B, and C, is considered a risk factor for disease in humans who consume milk. These variants are probably involved in intolerance to milk and some human diseases due to the production of a bioactive peptide with opioid activity during digestion, β-casomorphin 7 (BCM-7). In contrast, the A2 variant is not involved in pathogenetic mechanisms; thus, its presence in milk is a desirable feature. The difference between the A1 and A2 variants is a mutation at position 67 of the β-casein gene (CSN2), which causes an amino acid to change from histidine (in the A1, B, and C variants) to proline (in the A2 variant). To select dairy cows on the basis of the presence of the β-casein variant A2, allele frequencies of CSN2 variants were evaluated in Italian dairy cows reared in central Italy. The results of this study may help with the selection of animals with the β-casein gene variant A2 to produce a more digestible milk that only contains the β-casein variant A2. Abstract The majority of proteins in cow’s milk are caseins, which occur in four groups (α-s1, α-s2, β, and k) encoded by different genes (CSN1S1, CSN1S2, CSN2, and CSN3, respectively). In this study, we focused on the β-casein allele variants A1 and A2 due to their influence on milk’s technological characteristics and human health. Digestion of the β-casein variant A1 leads to the formation of β-casomorphin 7 (BCM-7), a bioactive peptide that has been suggested to be a possible cause of various human diseases and associated with low milk digestibility. The potential negative role of the β-casein variant A1 in human health has stimulated the planning of cattle breeding programs based on genetic selection to increase the frequency of the A2 variant, which is associated with increased milk digestibility. The aim of this work was to evaluate the frequencies of the different β-casein variants in Italian Holstein Friesian dairy cows from cattle farms located in central Italy to select a population of A2 homozygous animals. β-casein genotypes were identified by evaluating the presence of single nucleotide polymorphisms (SNPs) of the CSN2 gene using PCR and sequencing analysis. The frequency of the desirable β-casein variant A2 in the studied bovine population was 0.61. The frequency of the undesirable A1 variant in the studied bovine population was 0.30. The frequency of the A2 allele was higher than expected for the breed; therefore, genetic selection for the A2 variant in these animals could be achieved in a fairly short time using A2 homozygous bulls.
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Shahdost-Fard F, Roushani M. Designing of an ultrasensitive BCM-7 aptasensor based on an SPCE modified with AuNR for promising distinguishing of autism disorder. Talanta 2019; 209:120506. [PMID: 31892084 DOI: 10.1016/j.talanta.2019.120506] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2019] [Revised: 10/25/2019] [Accepted: 10/26/2019] [Indexed: 10/25/2022]
Abstract
Abstractly, in this study, an aptasensor is introduced based on a platform consisting of the gold nanorod (AuNR) on a screen printed carbon electrode (SPCE) surface. The aptasensor is applied for detection of the β-casomorphin (BCM-7) as a promising biomarker of autism disorder. The NH2-Apt sequence is directly immobilized onto the AuNR/SPCE surface by formation of a chemisorption bond between the amine-Au groups. By incubation of the BCM-7 onto the aptasensor surface, the aptasensor directed against BCM-7 and cleverly formed a target/Apt complex to produce a measurable electrical current change. The aptasensor shows linearity over the range of 1 fmol L-1 to 25 nmol L-1 with a limit of detection (LOD) of 334 amol L-1. Furthermore, the function of the aptasensor in real samples such as human urine and plasma samples is evaluated. The achieved satisfactory results are mainly due to three main reasons including (1) the large specific surface area of the AuNR which forms a 3D network on the SPCE surface to capture more Apt sequences at the sensing interface, (2) utilizing Apt as the BCM-7 receptor with inherent unique properties to produce a synergetic effect with the AuNR, and finally, (3) effective using screen printing technology with the fantastic capability to less cost of the aptasensor preparation. There is hope that miniaturization of the proposed aptasensor may aid future efforts to detect autism symptoms as early as infancy under clinical conditions in real-world.
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Affiliation(s)
- Faezeh Shahdost-Fard
- Department of Chemistry, Faculty of Sciences, Ilam University, Ilam, P. O. BOX, 69315-516, Iran
| | - Mahmoud Roushani
- Department of Chemistry, Faculty of Sciences, Ilam University, Ilam, P. O. BOX, 69315-516, Iran.
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Mobasheri L, Moossavi SZ, Esmaeili A, Mohammadoo-Khorasani M, Sarab GA. Association between vitamin D receptor gene FokI and TaqI variants with autism spectrum disorder predisposition in Iranian population. Gene 2019; 723:144133. [PMID: 31589956 DOI: 10.1016/j.gene.2019.144133] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2019] [Revised: 09/12/2019] [Accepted: 09/16/2019] [Indexed: 01/18/2023]
Abstract
BACKGROUND AND AIM Autism spectrum disorder (ASD) is one of the neurodevelopmental and cognitive conditions that involves 1 in 160 children around the world. Several studies showed that there is a relationship between vitamin D receptor (VDR) gene polymorphisms with the neurodevelopmental behavioral disorders. In the current study, we aimed to highlight the association of VDR gene polymorphisms (FokI and TaqI) with the risk of autism in Birjand population. MATERIAL AND METHODS In this case-control study eighty-one patients recognized with ASD and one hundred-eight healthy controls were recruited to the study from 2017 to 2018. Genotyping was carried out by polymerase chain reaction followed by restriction fragment length polymorphism (PCR-RFLP) technique for all subjects. RESULTS Calculated odds ratio and P-value for the alleles of VDR gene FokI and TaqI variants between autistic patients and controls did not show a significant difference (P > 0.05). However, calculated homozygous recessive (tt) for TaqI polymorphism was statistically significant (P = 0.015) in control group and there was also statistically meaningful difference in both case and control groups in ft haplotype (P = 0.04). CONCLUSION These results provide preliminary evidence that genetic variants of the VDR gene (FokI and TaqI) might have a possible reduced risk of ASD occurrence in children. The additional examination is needed to acquire more decisive and precise results in this area.
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Affiliation(s)
- Leila Mobasheri
- Student Research Committee, Birjand University of Medical Sciences, Birjand, Iran; Department of Medical Immunology, Faculty of Medicine, Birjand University of Medical Sciences, Birjand, Iran
| | | | - Aliakbar Esmaeili
- Psychiatry and Behavioral Science Research Center, Birjand University of Medical Sciences, Birjand, Iran
| | - Milad Mohammadoo-Khorasani
- Department of Clinical Biochemistry, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Gholamreza Anani Sarab
- Cellular and Molecular Research Center, Birjand University of Medical Sciences, Birjand, Iran; Department of Medical Immunology, Faculty of Medicine, Birjand University of Medical Sciences, Birjand, Iran.
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Cieślińska A, Fiedorowicz E, Zwierzchowski G, Kordulewska N, Jarmołowska B, Kostyra E. Genetic Polymorphism of β-Casein Gene in Polish Red Cattle-Preliminary Study of A1 and A2 Frequency in Genetic Conservation Herd. Animals (Basel) 2019; 9:E377. [PMID: 31226807 PMCID: PMC6616616 DOI: 10.3390/ani9060377] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2019] [Revised: 06/07/2019] [Accepted: 06/18/2019] [Indexed: 11/19/2022] Open
Abstract
Although there is growing interest in Red cow's milk in Poland, to date there are few reports investigating the characteristics of milk components in the studied population. Particular emphasis on milk proteins is advised, since β-casein is a source of bioactive peptides named β-casomorphins. β-casomorphin 7, which originates mostly from β-casein variants A1, may be a significant risk factor in human ischemic heart disease, arteriosclerosis, type I diabetes, sudden infant death syndrome, and autism. The aim of the present study was to identify CSN2 polymorphism gene in exon 7 using the genomic sequence from GenBank (M55158), g.8101C>A, (codon 67). Blood samples were collected from 201 Polish Red cattle (24 males and 177 females). The genotype of β-casein was determined using PCR-ACRS. The frequency of β-casein A2 in Polish Red population was 0.47. β-casein A2 frequency in Polish Red bulls and in cows was 0.58 and 0.37, respectively.
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Affiliation(s)
- Anna Cieślińska
- Department of Biochemistry, Faculty of Biology and Biotechnology, University of Warmia and Mazury in Olsztyn, Oczapowskiego 1A, 10-719 Olsztyn, Poland.
| | - Ewa Fiedorowicz
- Department of Biochemistry, Faculty of Biology and Biotechnology, University of Warmia and Mazury in Olsztyn, Oczapowskiego 1A, 10-719 Olsztyn, Poland.
| | - Grzegorz Zwierzchowski
- Department of Biochemistry, Faculty of Biology and Biotechnology, University of Warmia and Mazury in Olsztyn, Oczapowskiego 1A, 10-719 Olsztyn, Poland.
| | - Natalia Kordulewska
- Department of Biochemistry, Faculty of Biology and Biotechnology, University of Warmia and Mazury in Olsztyn, Oczapowskiego 1A, 10-719 Olsztyn, Poland.
| | - Beata Jarmołowska
- Department of Biochemistry, Faculty of Biology and Biotechnology, University of Warmia and Mazury in Olsztyn, Oczapowskiego 1A, 10-719 Olsztyn, Poland.
| | - Elżbieta Kostyra
- Department of Biochemistry, Faculty of Biology and Biotechnology, University of Warmia and Mazury in Olsztyn, Oczapowskiego 1A, 10-719 Olsztyn, Poland.
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20
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Kordulewska NK, Kostyra E, Chwała B, Moszyńska M, Cieślińska A, Fiedorowicz E, Jarmołowska B. A novel concept of immunological and allergy interactions in autism spectrum disorders: Molecular, anti-inflammatory effect of osthole. Int Immunopharmacol 2019; 72:1-11. [PMID: 30953868 DOI: 10.1016/j.intimp.2019.01.058] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2018] [Revised: 01/16/2019] [Accepted: 01/17/2019] [Indexed: 02/07/2023]
Abstract
BACKGROUND Autism spectrum disorder (ASD) is a neurodevelopmental disorder defined by Diagnosis and Statistic Manual 5 (DSM-5) as persistent social interaction and communication deficient across multiple contexts. Various immunological findings have been reported in children with ASD, and co-existing allergic problems have been recorded in children diagnosed with ASD. Osthole, the effective component of Chinese traditional medicine, is reported to have anti-inflammatory effects. This study assessed the anti-inflammatory effect of osthole on the histamine-induced inflammatory responses in PBMC cells. METHODS Peripheral blood mononuclear cells (PBMC's) from children with: (1) ASD group with co-existing allergies/asthma (n = 29); (2) ASD group without allergy/asthma (n = 29); (3) Allergy group (n = 30) and from typically developing age-matched control subjects (n = 28) were stimulated with either histamine, FXF, osthole or mixture of this substances. mRNA COX-2 gene expression, COX-2 production and inhibitory effect of tested substances on COX-2 were assessed after stimulation. RESULTS Children with ASD may show either an innate proinflammatory response or increased activity of COX-2 which could display more impaired behavioral profile than children with non-inflamed. This study indicated that COX-2 may be involved in pathogenesis of ASD and/or allergy, and osthole could be used to decrease the effects of COX-2 in inflammation and ASD development. High incidence of allergy in ASD patients may indicate immune dysregulation that could be of relevance to the pathophysiology, symptomatology or neuroimmunology of ASD. CONCLUSIONS This study shows that fexofenadine (FXF - antihistamine drug) and osthole exhibit selective COX-2 enzyme inhibitory activity. The selective COX-2 activity of osthole may explain further the anti-inflammatory properties of osthole in relieving congestion in allergic rhinitis, and as distinctive effects between FXF and osthole were observed, individual antihistamines may have different modes of action via the COX enzyme system.
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Affiliation(s)
- Natalia Karolina Kordulewska
- Department of Biology and Biotechnology, University of Warmia and Mazury, Oczapowskiego 1A Street, 10-719 Olsztyn, Poland
| | - Elżbieta Kostyra
- Department of Biology and Biotechnology, University of Warmia and Mazury, Oczapowskiego 1A Street, 10-719 Olsztyn, Poland.
| | - Barbara Chwała
- Regional Children's Hospital in Olsztyn, Zolnierska 18 A Street, 10-561 Olsztyn, Poland
| | - Małgorzata Moszyńska
- Center for Diagnosis, Treatment and Therapy of Autism at the Regional Children's Hospital in Olsztyn, Zolnierska 18 A Street, 10-561 Olsztyn, Poland
| | - Anna Cieślińska
- Department of Biology and Biotechnology, University of Warmia and Mazury, Oczapowskiego 1A Street, 10-719 Olsztyn, Poland
| | - Ewa Fiedorowicz
- Department of Biology and Biotechnology, University of Warmia and Mazury, Oczapowskiego 1A Street, 10-719 Olsztyn, Poland
| | - Beata Jarmołowska
- Department of Biology and Biotechnology, University of Warmia and Mazury, Oczapowskiego 1A Street, 10-719 Olsztyn, Poland
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21
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Jarmołowska B, Bukało M, Fiedorowicz E, Cieślińska A, Kordulewska NK, Moszyńska M, Świątecki A, Kostyra E. Role of Milk-Derived Opioid Peptides and Proline Dipeptidyl Peptidase-4 in Autism Spectrum Disorders. Nutrients 2019; 11:nu11010087. [PMID: 30621149 PMCID: PMC6356206 DOI: 10.3390/nu11010087] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2018] [Revised: 12/11/2018] [Accepted: 12/28/2018] [Indexed: 01/08/2023] Open
Abstract
Opioid peptides released during digestion of dietary proteins such as casein, were suggested to contribute to autism development, leading to the announcement of opioid excess hypothesis of autism. This paper examines role of enzyme proline dipeptidyl peptidase-4 (DPPIV; EC 3.4.14.5) and it is exogenous substrate, β-casomorphin-7 (BCM7) in autism etiology. Our study included measurements of DPPIV and BCM7 concentrations in serum and urine, which were analyzed with ELISA assays and activity of DPPIV was measured by colorimetric test. The effect of opioid peptides from hydrolysed bovine milk on DPPIV gene expression in peripheral blood mononuclear cells (PBMC) in autistic and healthy children was determined using the Real-Time PCR (Polymerase Chain Reaction) method. Our research included 51 healthy children and 86 children diagnosed with autism spectrum disorder (ASD, ICDF84). We determined that the concentration of BCM7 in serum was significantly, 1.6-fold, higher in the ASD group than in controls (p < 0.0001). Concentration of DPPIV was found to also be significantly higher in serum from ASD children compared to the control group (p < 0.01), while we did not notice significant difference in enzymatic activity of serum DPPIV between the two study groups. We confirmed correlation according to the gender between analyzed parameters. The inspiration for this study emanated from clinical experience of the daily diet role in relieving the symptoms of autism. Despite this, we have concluded that milk-derived opioid peptides and DPPIV are potentially factors in determining the pathogenesis of autism; conducted studies are still limited and require further research.
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Affiliation(s)
- Beata Jarmołowska
- Department of Biochemistry, Faculty of Biology and Biotechnology, University of Warmia and Mazury, Oczapowskiego 1A Street, 10-19 Olsztyn, Poland.
| | - Marta Bukało
- Department of Biochemistry, Faculty of Biology and Biotechnology, University of Warmia and Mazury, Oczapowskiego 1A Street, 10-19 Olsztyn, Poland.
| | - Ewa Fiedorowicz
- Department of Biochemistry, Faculty of Biology and Biotechnology, University of Warmia and Mazury, Oczapowskiego 1A Street, 10-19 Olsztyn, Poland.
| | - Anna Cieślińska
- Department of Biochemistry, Faculty of Biology and Biotechnology, University of Warmia and Mazury, Oczapowskiego 1A Street, 10-19 Olsztyn, Poland.
| | - Natalia Karolina Kordulewska
- Department of Biochemistry, Faculty of Biology and Biotechnology, University of Warmia and Mazury, Oczapowskiego 1A Street, 10-19 Olsztyn, Poland.
| | - Małgorzata Moszyńska
- Center for Diagnosis, Treatment and Therapy of Autism at the Regional Children's Hospital in Olsztyn, Zolnierska 18 A Street, 10-561 Olsztyn, Poland.
| | - Aleksander Świątecki
- Faculty of Biology and Biotechnology, Department of Microbiology and Mycology, University of Warmia and Mazury, Oczapowskiego 1A Street, 10-19 Olsztyn, Poland.
| | - Elżbieta Kostyra
- Department of Biochemistry, Faculty of Biology and Biotechnology, University of Warmia and Mazury, Oczapowskiego 1A Street, 10-19 Olsztyn, Poland.
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Liu Z, Udenigwe CC. Role of food-derived opioid peptides in the central nervous and gastrointestinal systems. J Food Biochem 2019; 43:e12629. [PMID: 31353498 DOI: 10.1111/jfbc.12629] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2018] [Revised: 05/16/2018] [Accepted: 06/27/2018] [Indexed: 12/20/2022]
Abstract
Opioid receptors are widely distributed in central nervous system and peripheral tissues. Endogenous opioid receptor ligands are involved in many physiological processes. Exogenous peptides, derived from food proteins with gastrointestinal proteases, also exert opioid-like activities, and they include gluten exorphins (wheat), casomorphins (milk), rubiscolins (spinach), and soymorphins (soybean). Milk-derived opioid peptides play both agonistic and antagonistic roles, and most of the opioid peptides exert regulatory functions in the central nervous system, related to nociception, emotion and memory after oral, intracerebroventricular, or intraperitoneal administration. This indicates that the peptides may have crossed the blood-brain barrier or acted peripherally. Furthermore, some food-derived opioid peptides influence gastrointestinal functions such as gut motility, hormone release, appetite, mucus production, and local immunity. In healthy states, food-derived opioid peptides could benefit both the nervous and digestive systems, whereas in pathological conditions, the gastrointestinal permeability change and opioid excess may contribute to pathogenesis of some disorders. PRACTICAL APPLICATIONS: Opioid receptors are important biological targets for the treatment of multiple diseases. Traditional opiate compounds, such as alkaloids, are demonstrated to exert numerous side effects, thereby limiting their clinical effectiveness. It is thought that food-derived opioid peptides may be safer than the alkaloids, and therefore can be applied in functional food development. In this review, we summarized the already discovered food opioid peptides from different sources, and elaborated their physiological functions on the central nervous and gastrointestinal systems. These effects support further exploration of the opioid peptides as therapeutic agents or as functional food ingredient for human health promotion.
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Affiliation(s)
- Zhenze Liu
- School of Life Science and Technology, Tongji University, Shanghai, China
| | - Chibuike C Udenigwe
- School of Nutrition Sciences, University of Ottawa, Ottawa, Ontario, Canada
- Department of Chemistry and Biomolecular Sciences, University of Ottawa, Ottawa, Ontario, Canada
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Esteban-Figuerola P, Canals J, Fernández-Cao JC, Arija Val V. Differences in food consumption and nutritional intake between children with autism spectrum disorders and typically developing children: A meta-analysis. AUTISM : THE INTERNATIONAL JOURNAL OF RESEARCH AND PRACTICE 2018; 23:1079-1095. [DOI: 10.1177/1362361318794179] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Patricia Esteban-Figuerola
- Nutrition and Mental Health Research Group (NUTRISAM)., Rovira i Virgili University (URV)., Tarragona, Spain
- Research Centre for Behavioral Assessment (CRAMC), Department of Psychology, URV., Tarragona, Spain
- Institut d’Investigació Sanitaria Pere Virgili (IISPV), URV., Tarragona, Spain
| | - Josefa Canals
- Nutrition and Mental Health Research Group (NUTRISAM)., Rovira i Virgili University (URV)., Tarragona, Spain
- Research Centre for Behavioral Assessment (CRAMC), Department of Psychology, URV., Tarragona, Spain
- Institut d’Investigació Sanitaria Pere Virgili (IISPV), URV., Tarragona, Spain
| | - José Cándido Fernández-Cao
- Nutrition and Mental Health Research Group (NUTRISAM)., Rovira i Virgili University (URV)., Tarragona, Spain
- Departamento de Nutrición y Dietética, Facultad de Ciencias de la Salud, Universidad de Atacama, Copiapó, Chile
| | - Victoria Arija Val
- Nutrition and Mental Health Research Group (NUTRISAM)., Rovira i Virgili University (URV)., Tarragona, Spain
- Institut d’Investigació Sanitaria Pere Virgili (IISPV), URV., Tarragona, Spain
- Institut d’Investigació en Atenció Primària IDIAP Jordi Gol., Barcelona, Spain
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Arısoy S, Üstün-Aytekin Ö. Hydrolysis of food-derived opioids by dipeptidyl peptidase IV from Lactococcus lactis spp. lactis. Food Res Int 2018; 111:574-581. [DOI: 10.1016/j.foodres.2018.05.068] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Revised: 05/10/2018] [Accepted: 05/29/2018] [Indexed: 12/12/2022]
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26
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Vitamin D Receptor Gene Polymorphisms Associated with Childhood Autism. Brain Sci 2017; 7:brainsci7090115. [PMID: 28891930 PMCID: PMC5615256 DOI: 10.3390/brainsci7090115] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2017] [Revised: 09/02/2017] [Accepted: 09/06/2017] [Indexed: 02/06/2023] Open
Abstract
Background: Autism spectrum disorder (ASD) is a group of heterogeneous, behaviorally defined disorders whereby currently no biological markers are common to all affected individuals. A deregulated immune response may be contributing to the etiology of ASD. The active metabolite of vitamin D3 has an immunoregulatory role mediated by binding to the vitamin D receptor (VDR) in monocyte, macrophages, and lymphocytes. The effects of vitamin D and interaction with the VDR may be influenced by polymorphism in the VDR gene. Methods: Genetic association of four different VDR polymorphisms (Apa-I, Bsm-I, Taq-I, Fok-I) associated with susceptibility to the development of autism in children was investigated. Results: We uniquely found an association between the presence of the T allele at position Taq-I and presence of the a allele at position Apa-I of the VDR gene with decreased ASD incidence. There was also an association between female gender and the presence of the T allele. We found no statistical significant correlation between VDR single nucleotide polymorphisms (SNPs) and vitamin D3 concentration in serum of ASD children. Conclusion: Genetic polymorphism in two SNP in VDR may be correlated with development of ASD symptoms by influencing functionality of vitamin D3 metabolism, while vitamin D3 levels were not significantly different between ASD and non-ASD children.
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Candidate Genes for Inherited Autism Susceptibility in the Lebanese Population. Sci Rep 2017; 7:45336. [PMID: 28358038 PMCID: PMC5372175 DOI: 10.1038/srep45336] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2016] [Accepted: 02/22/2017] [Indexed: 12/19/2022] Open
Abstract
Autism spectrum disorder (ASD) is characterized by ritualistic-repetitive behaviors and impaired verbal/non-verbal communication. Many ASD susceptibility genes implicated in neuronal pathways/brain development have been identified. The Lebanese population is ideal for uncovering recessive genes because of shared ancestry and a high rate of consanguineous marriages. Aims here are to analyze for published ASD genes and uncover novel inherited ASD susceptibility genes specific to the Lebanese. We recruited 36 ASD families (ASD: 37, unaffected parents: 36, unaffected siblings: 33) and 100 unaffected Lebanese controls. Cytogenetics 2.7 M Microarrays/CytoScan™ HD arrays allowed mapping of homozygous regions of the genome. The CNTNAP2 gene was screened by Sanger sequencing. Homozygosity mapping uncovered DPP4, TRHR, and MLF1 as novel candidate susceptibility genes for ASD in the Lebanese. Sequencing of hot spot exons in CNTNAP2 led to discovery of a 5 bp insertion in 23/37 ASD patients. This mutation was present in unaffected family members and unaffected Lebanese controls. Although a slight increase in number was observed in ASD patients and family members compared to controls, there were no significant differences in allele frequencies between affecteds and controls (C/TTCTG: γ2 value = 0.014; p = 0.904). The CNTNAP2 polymorphism identified in this population, hence, is not linked to the ASD phenotype.
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28
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Abstract
This paper is the thirty-eighth consecutive installment of the annual review of research concerning the endogenous opioid system. It summarizes papers published during 2015 that studied the behavioral effects of molecular, pharmacological and genetic manipulation of opioid peptides, opioid receptors, opioid agonists and opioid antagonists. The particular topics that continue to be covered include the molecular-biochemical effects and neurochemical localization studies of endogenous opioids and their receptors related to behavior, and the roles of these opioid peptides and receptors in pain and analgesia, stress and social status, tolerance and dependence, learning and memory, eating and drinking, drug abuse and alcohol, sexual activity and hormones, pregnancy, development and endocrinology, mental illness and mood, seizures and neurologic disorders, electrical-related activity and neurophysiology, general activity and locomotion, gastrointestinal, renal and hepatic functions, cardiovascular responses, respiration and thermoregulation, and immunological responses.
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Affiliation(s)
- Richard J Bodnar
- Department of Psychology and Neuropsychology Doctoral Sub-Program, Queens College, City University of New York, Flushing, NY 11367, United States.
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29
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Deth R, Clarke A, Ni J, Trivedi M. Clinical evaluation of glutathione concentrations after consumption of milk containing different subtypes of β-casein: results from a randomized, cross-over clinical trial. Nutr J 2016; 15:82. [PMID: 27680716 PMCID: PMC5041571 DOI: 10.1186/s12937-016-0201-x] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2016] [Accepted: 09/15/2016] [Indexed: 12/17/2022] Open
Abstract
Abstract This study reports the plasma glutathione concentrations in a double-blind, randomized, controlled, 2 × 2 cross-over study in which healthy participants consumed conventional milk (2 × 250 mL per day) containing both A1 and A2 types of β-casein, or milk containing only A2 type β-casein. Beta-casomorphin-7 (BCM-7), a peptide uniquely derived from the A1 type of β-casein, was previously reported to downregulate glutathione expression in human gut epithelial and neuronal cell lines by limiting cysteine uptake. The current human study demonstrates that consumption of milk containing only A2 β-casein was associated with a greater increase in plasma glutathione concentrations compared with the consumption of milk containing both β-casein types, and did not increase plasma BCM-7 concentrations compared with the washout diet in the study participants. Thus, milk containing only A2 β-casein and not A1 β-casein has the potential to promote the production of the antioxidant glutathione in humans. Clinical Trial Registration ClinicalTrials.gov; identifier: NCT02406469 Electronic supplementary material The online version of this article (doi:10.1186/s12937-016-0201-x) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Richard Deth
- Department of Pharmaceutical Sciences, College of Pharmacy, Nova Southeastern University, Rm # 1382, Terry Building, Fort Lauderdale, FL, 33317, USA
| | | | - Jiayi Ni
- S.P.R.I.M. China (Shanghai) Consulting Co., Ltd., Shanghai, China
| | - Malav Trivedi
- Department of Pharmaceutical Sciences, College of Pharmacy, Nova Southeastern University, Rm # 1382, Terry Building, Fort Lauderdale, FL, 33317, USA.
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30
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Lázaro CP, Pondé MP, Rodrigues LEA. Opioid peptides and gastrointestinal symptoms in autism spectrum disorders. ACTA ACUST UNITED AC 2016; 38:243-6. [PMID: 27304256 PMCID: PMC7194264 DOI: 10.1590/1516-4446-2015-1777] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2015] [Accepted: 01/24/2016] [Indexed: 12/26/2022]
Abstract
Autism spectrum disorders (ASDs) are characterized by deficits in the individual's ability to socialize, communicate, and use the imagination, in addition to stereotyped behaviors. These disorders have a heterogenous phenotype, both in relation to symptoms and regarding severity. Organic problems related to the gastrointestinal tract are often associated with ASD, including dysbiosis, inflammatory bowel disease, exocrine pancreatic insufficiency, celiac disease, indigestion, malabsorption, food intolerance, and food allergies, leading to vitamin deficiencies and malnutrition. In an attempt to explain the pathophysiology involved in autism, a theory founded on opioid excess has been the focus of various investigations, since it partially explains the symptomatology of the disorder. Another hypothesis has been put forward whereby the probable triggers of ASDs would be related to the presence of bacteria in the bowel, oxidative stress, and intestinal permeability. The present update reviews these hypotheses.
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Affiliation(s)
- Cristiane P Lázaro
- Escola Bahiana de Medicina e Saúde Pública (BAHIANA), Salvador, BA, Brazil.,Laboratório Interdisciplinar de Pesquisa em Autismo (LABIRINTO), Salvador, BA, Brazil
| | - Milena P Pondé
- Escola Bahiana de Medicina e Saúde Pública (BAHIANA), Salvador, BA, Brazil.,Laboratório Interdisciplinar de Pesquisa em Autismo (LABIRINTO), Salvador, BA, Brazil
| | - Luiz E A Rodrigues
- Escola Bahiana de Medicina e Saúde Pública (BAHIANA), Salvador, BA, Brazil.,Laboratório Interdisciplinar de Pesquisa em Autismo (LABIRINTO), Salvador, BA, Brazil.,Departamento de Bioquímica, Laboratório de Pesquisas Básicas, BAHIANA, Salvador, BA, Brazil
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31
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Measurement in saliva from neurotypical adults of biomarkers pertinent to autism spectrum disorders. Future Sci OA 2015; 1:FSO70. [PMID: 28031921 PMCID: PMC5137858 DOI: 10.4155/fso.15.70] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Aim: Measure biomarkers pertinent to autism in saliva from humans. Materials & methods: At 7:30 PM (reading instructions) and 8:30 PM (hearing instructions), neurotypical adults (6 M, 6 F) each spat into tubes containing protease inhibitors. Cells were counted, samples aliquoted, frozen and thawed. Rationale was given for choice of biomarkers. ELISA: CD26, IL-12, carnitine, C4B, GSH, GSSG, MT-2, testosterone, IFN-γ. Mass spectrometry: cystine, glutamine, glutamic acid, GABA, serotonin. Electrochemiluminescentimmunoassay: cortisol. Radioimmunoassay: melatonin. Results: Cells averaged 2.16 × 106/ml. M > F: CD-26, C4B, MT-2. Testosterone, cortisol. Glutamine, glutamic acid, IFN-γ, melatonin and GSSG were measurable. Remaining biomarkers were measured in <50% of samples. Concentrations were equal at both times. Conclusion: Saliva can be collected by literate individuals without added instruction. Ten biomarkers were measurable.
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32
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Wasilewska J, Klukowski M. Gastrointestinal symptoms and autism spectrum disorder: links and risks - a possible new overlap syndrome. Pediatric Health Med Ther 2015; 6:153-166. [PMID: 29388597 PMCID: PMC5683266 DOI: 10.2147/phmt.s85717] [Citation(s) in RCA: 81] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Autism spectrum disorder (ASD) is a genetically determined neurodevelopmental brain disorder presenting with restricted, repetitive patterns of behaviors, interests, and activities, or persistent deficits in social communication and social interaction. ASD is characterized by many different clinical endophenotypes and is potentially linked with certain comorbidities. According to current recommendations, children with ASD are at risk of having alimentary tract disorders - mainly, they are at a greater risk of general gastrointestinal (GI) concerns, constipation, diarrhea, and abdominal pain. GI symptoms may overlap with ASD core symptoms through different mechanisms. These mechanisms include multilevel pathways in the gut-brain axis contributing to alterations in behavior and cognition. Shared pathogenetic factors and pathophysiological mechanisms possibly linking ASD and GI disturbances, as shown by most recent studies, include intestinal inflammation with or without autoimmunity, immunoglobulin E-mediated and/or cell-mediated GI food allergies as well as gluten-related disorders (celiac disease, wheat allergy, non-celiac gluten sensitivity), visceral hypersensitivity linked with functional abdominal pain, and dysautonomia linked with GI dysmotility and gastroesophageal reflux. Dysregulation of the gut microbiome has also been shown to be involved in modulating GI functions with the ability to affect intestinal permeability, mucosal immune function, and intestinal motility and sensitivity. Metabolic activity of the microbiome and dietary components are currently suspected to be associated with alterations in behavior and cognition also in patients with other neurodegenerative diseases. All the above-listed GI factors may contribute to brain dysfunction and neuroinflammation depending upon an individual patient's genetic vulnerability. Due to a possible clinical endophenotype presenting as comorbidity of ASD and GI disorders, we propose treating this situation as an "overlap syndrome". Practical use of the concept of an overlap syndrome of ASD and GI disorders may help in identifying those children with ASD who suffer from an alimentary tract disease. Unexplained worsening of nonverbal behaviors (agitation, anxiety, aggression, self-injury, sleep deprivation) should alert professionals about this possibility. This may shorten the time to diagnosis and treatment commencement, and thereby alleviate both GI and ASD symptoms through reducing pain, stress, or discomfort. Furthermore, this may also protect children against unnecessary dietary experiments and restrictions that have no medical indications. A personalized approach to each patient is necessary. Our understanding of ASDs has come a long way, but further studies and more systematic research are warranted.
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Affiliation(s)
- Jolanta Wasilewska
- Department of Pediatrics, Gastroenterology and Allergology, Medical University of Bialystok, Bialystok, Poland
| | - Mark Klukowski
- Department of Pediatrics, Gastroenterology and Allergology, Medical University of Bialystok, Bialystok, Poland
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