Gut microbiota profile in CDKL5 deficiency disorder patients

Abstract CDKL5 deficiency disorder (CDD) is a neurodevelopmental condition characterized by global developmental delay, early-onset seizures, intellectual disability, visual and motor impairments. Unlike Rett Syndrome (RTT), CDD lacks a clear regression period. Patients with CDD frequently encounter...

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Main Authors: Elisa Borghi, Ornella Xynomilakis, Emerenziana Ottaviano, Camilla Ceccarani, Ilaria Viganò, Paola Tognini, Aglaia Vignoli
Format: Article
Language:English
Published: Nature Portfolio 2024-03-01
Series:Scientific Reports
Subjects:
Online Access:https://doi.org/10.1038/s41598-024-56989-0
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author Elisa Borghi
Ornella Xynomilakis
Emerenziana Ottaviano
Camilla Ceccarani
Ilaria Viganò
Paola Tognini
Aglaia Vignoli
author_facet Elisa Borghi
Ornella Xynomilakis
Emerenziana Ottaviano
Camilla Ceccarani
Ilaria Viganò
Paola Tognini
Aglaia Vignoli
author_sort Elisa Borghi
collection DOAJ
description Abstract CDKL5 deficiency disorder (CDD) is a neurodevelopmental condition characterized by global developmental delay, early-onset seizures, intellectual disability, visual and motor impairments. Unlike Rett Syndrome (RTT), CDD lacks a clear regression period. Patients with CDD frequently encounter gastrointestinal (GI) disturbances and exhibit signs of subclinical immune dysregulation. However, the underlying causes of these conditions remain elusive. Emerging studies indicate a potential connection between neurological disorders and gut microbiota, an area completely unexplored in CDD. We conducted a pioneering study, analyzing fecal microbiota composition in individuals with CDD (n = 17) and their healthy relatives (n = 17). Notably, differences in intestinal bacterial diversity and composition were identified in CDD patients. In particular, at genus level, CDD microbial communities were characterized by an increase in the relative abundance of Clostridium_AQ, Eggerthella, Streptococcus, and Erysipelatoclostridium, and by a decrease in Eubacterium, Dorea, Odoribacter, Intestinomonas, and Gemmiger, pointing toward a dysbiotic profile. We further investigated microbiota changes based on the severity of GI issues, seizure frequency, sleep disorders, food intake type, impairment in neuro-behavioral features and ambulation capacity. Enrichment in Lachnoclostridium and Enterobacteriaceae was observed in the microbiota of patients with more severe GI symptoms, while Clostridiaceae, Peptostreptococcaceae, Coriobacteriaceae, Erysipelotrichaceae, Christensenellaceae, and Ruminococcaceae were enriched in patients experiencing daily epileptic seizures. Our findings suggest a potential connection between CDD, microbiota and symptom severity. This study marks the first exploration of the gut-microbiota-brain axis in subjects with CDD. It adds to the growing body of research emphasizing the role of the gut microbiota in neurodevelopmental disorders and opens doors to potential interventions that target intestinal microbes with the aim of improving the lives of patients with CDD.
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spelling doaj.art-5076cb12f9cd4b8c93cb0121aa6fc6ae2024-03-31T11:17:08ZengNature PortfolioScientific Reports2045-23222024-03-0114111510.1038/s41598-024-56989-0Gut microbiota profile in CDKL5 deficiency disorder patientsElisa Borghi0Ornella Xynomilakis1Emerenziana Ottaviano2Camilla Ceccarani3Ilaria Viganò4Paola Tognini5Aglaia Vignoli6Department of Health Sciences, Università Degli Studi di MilanoDepartment of Health Sciences, Università Degli Studi di MilanoDepartment of Health Sciences, Università Degli Studi di MilanoInstitute of Biomedical Technologies, National Research CouncilEpilepsy Center-Child Neuropsychiatric Unit, ASST Santi Paolo e CarloDepartment of Translational Research and New Technologies in Medicine and Surgery, University of PisaDepartment of Health Sciences, Università Degli Studi di MilanoAbstract CDKL5 deficiency disorder (CDD) is a neurodevelopmental condition characterized by global developmental delay, early-onset seizures, intellectual disability, visual and motor impairments. Unlike Rett Syndrome (RTT), CDD lacks a clear regression period. Patients with CDD frequently encounter gastrointestinal (GI) disturbances and exhibit signs of subclinical immune dysregulation. However, the underlying causes of these conditions remain elusive. Emerging studies indicate a potential connection between neurological disorders and gut microbiota, an area completely unexplored in CDD. We conducted a pioneering study, analyzing fecal microbiota composition in individuals with CDD (n = 17) and their healthy relatives (n = 17). Notably, differences in intestinal bacterial diversity and composition were identified in CDD patients. In particular, at genus level, CDD microbial communities were characterized by an increase in the relative abundance of Clostridium_AQ, Eggerthella, Streptococcus, and Erysipelatoclostridium, and by a decrease in Eubacterium, Dorea, Odoribacter, Intestinomonas, and Gemmiger, pointing toward a dysbiotic profile. We further investigated microbiota changes based on the severity of GI issues, seizure frequency, sleep disorders, food intake type, impairment in neuro-behavioral features and ambulation capacity. Enrichment in Lachnoclostridium and Enterobacteriaceae was observed in the microbiota of patients with more severe GI symptoms, while Clostridiaceae, Peptostreptococcaceae, Coriobacteriaceae, Erysipelotrichaceae, Christensenellaceae, and Ruminococcaceae were enriched in patients experiencing daily epileptic seizures. Our findings suggest a potential connection between CDD, microbiota and symptom severity. This study marks the first exploration of the gut-microbiota-brain axis in subjects with CDD. It adds to the growing body of research emphasizing the role of the gut microbiota in neurodevelopmental disorders and opens doors to potential interventions that target intestinal microbes with the aim of improving the lives of patients with CDD.https://doi.org/10.1038/s41598-024-56989-0CDKL5 deficiency disorderGastrointestinal disturbancesGut microbiotaGut-brain-axis
spellingShingle Elisa Borghi
Ornella Xynomilakis
Emerenziana Ottaviano
Camilla Ceccarani
Ilaria Viganò
Paola Tognini
Aglaia Vignoli
Gut microbiota profile in CDKL5 deficiency disorder patients
Scientific Reports
CDKL5 deficiency disorder
Gastrointestinal disturbances
Gut microbiota
Gut-brain-axis
title Gut microbiota profile in CDKL5 deficiency disorder patients
title_full Gut microbiota profile in CDKL5 deficiency disorder patients
title_fullStr Gut microbiota profile in CDKL5 deficiency disorder patients
title_full_unstemmed Gut microbiota profile in CDKL5 deficiency disorder patients
title_short Gut microbiota profile in CDKL5 deficiency disorder patients
title_sort gut microbiota profile in cdkl5 deficiency disorder patients
topic CDKL5 deficiency disorder
Gastrointestinal disturbances
Gut microbiota
Gut-brain-axis
url https://doi.org/10.1038/s41598-024-56989-0
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