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Liu L, Xiang M, Cai X, Wu B, Chen C, Cai N, Ao D. Multi-omics analyses of gut microbiota via 16S rRNA gene sequencing, LC-MS/MS and diffusion tension imaging reveal aberrant microbiota-gut-brain axis in very low or extremely low birth weight infants with white matter injury. BMC Microbiol 2023; 23:387. [PMID: 38057706 DOI: 10.1186/s12866-023-03103-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2023] [Accepted: 11/02/2023] [Indexed: 12/08/2023] Open
Abstract
OBJECTIVE The goal of this study was to comprehensively investigate the characteristics of gut microbiota dysbiosis and metabolites levels in very low or extremely low birth weight (VLBW/ELBW) infants with white matter injury (WMI). METHODS In this prospective cohort study, preterm infants with gestational age < 32 weeks and weight < 1.5 kg were investigated. Additionally, fecal samples were collected on days zero, 14d and 28d after admission to the intensive care unit. All subjects underwent brain scan via MRI and DTI at a corrected gestational age of 37 ~ 40 weeks. Based on the results of MRI examination, the VLBW/ELBW infants were divided into two groups: WMI and non-WMI. Finally, based on a multi-omics approach, we performed 16S rRNA gene sequencing, LC-MS/MS, and diffusion tension imaging to identify quantifiable and informative biomarkers for WMI. RESULT We enrolled 23 patients with and 48 patients without WMI. The results of 16S RNA sequencing revealed an increase in the number of Staphylococcus and Acinetobacter species in the fecal samples of infants with WMI, as well as increasing levels of S. caprae and A._johnsonii. LEfSe analysis (LDA ≥ 4) showed that the WMI group carried an abundance of Staphylococcus species including S. caprae, members of the phyla Bacteroidota and Actinobacteriota, and Acinetobacter species. A total of 139 metabolic markers were significantly and differentially expressed between WMI and nWMI. KEGG pathway enrichment analysis revealed that the WMI group showed significant downregulation of 17 metabolic pathways including biosynthesis of arginine and primary bile acids. The WMI group showed delayed brain myelination, especially in the paraventricular white matter and splenium of corpus callosum. Staphylococcus species may affect WMI by downregulating metabolites such as cholic acid, allocholic acid, and 1,3-butadiene. Gut microbiota such as Acinetobacter and Bacteroidetes may alter white matter structurally by upregulating metabolites such as cinobufagin. CONCLUSION Based on 16S RNA sequencing results, severe gut microbiota dysbiosis was observed in the WMI group. The results might reveal damage to potential signaling pathways of microbiota-gut-brain axis in gut microbiota. The mechanism was mediated via downregulation of the bile acid biosynthetic pathway.
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Affiliation(s)
- Ling Liu
- Department of Pediatrics, Affiliated Hospital of Guangdong Medical University, Zhanjiang, 524000, Guangdong, China
| | - Min Xiang
- Department of Orthopedics, Affiliated Hospital of Guangdong Medical University, Zhanjiang, 524001, China
| | - Xiangsheng Cai
- Guangzhou Cadre Health Management Center, Guangzhou Eleventh People's Hospital, Guangzhou, 510000, Guangdong, China
| | - Benqing Wu
- University of the Chinese Academy of Science-Shenzhen Hospital, Shenzhen, 518000, Guangdong, China
| | - Chaohong Chen
- Department of Pediatrics, Affiliated Hospital of Guangdong Medical University, Zhanjiang, 524000, Guangdong, China
| | - Nali Cai
- Department of Pediatrics, Affiliated Hospital of Guangdong Medical University, Zhanjiang, 524000, Guangdong, China
| | - Dang Ao
- Department of Pediatrics, Affiliated Hospital of Guangdong Medical University, Zhanjiang, 524000, Guangdong, China.
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Liu MX, Li HF, Wu MQ, Geng SS, Ke L, Lou BW, Du W, Hua J. Associations of preterm and early-term birth with suspected developmental coordination disorder: a national retrospective cohort study in children aged 3-10 years. World J Pediatr 2023; 19:261-272. [PMID: 36469242 PMCID: PMC9974676 DOI: 10.1007/s12519-022-00648-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Accepted: 10/26/2022] [Indexed: 12/11/2022]
Abstract
BACKGROUND This study analyzed the motor development and suspected developmental coordination disorder of very and moderately preterm (< 34+0 gestational age), late preterm (34+0-36+6 gestational week), and early-term (37+0-38+6 gestational week) children compared to their full-term peers with a national population-based sample in China. METHODS A total of 1673 children (799 girls, 874 boys) aged 3-10 years old were individually assessed with the Movement Assessment Battery for Children-second edition (MABC-2). The association between gestational age and motor performance of children was analyzed using a multilevel regression model. RESULTS The global motor performance [β = - 5.111, 95% confidence interval (CI) = - 9.200 to - 1.022; P = 0.015] and balance (β = - 5.182, 95% CI = - 5.055 to - 1.158; P = 0.003) for very and moderately preterm children aged 3-6 years old were significantly lower than their full-term peers when adjusting for confounders. Late preterm and early-term children showed no difference. Moreover, very and moderately preterm children aged 3-6 years had a higher risk of suspected developmental coordination disorder (DCD) (≤ 5 percentile of MABC-2 score) when adjusting for potential confounders [odds ratio (OR) = 2.931, 95% CI = 1.067-8.054; P = 0.038]. Late preterm and early-term children showed no difference in motor performance from their full-term peers (each P > 0.05). CONCLUSIONS Our findings have important implications for understanding motor impairment in children born at different gestational ages. Very and moderately preterm preschoolers have an increased risk of DCD, and long-term follow-up should be provided for early detection and intervention.
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Affiliation(s)
- Ming-Xia Liu
- The Women's and Children's Department, Shanghai First Maternity and Infant Hospital, School of Medicine, Tongji University, Shanghai, China
- Shanghai Key Laboratory of Maternal Fetal Medicine, Shanghai First Maternity and Infant Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Hai-Feng Li
- Department of Rehabilitation, Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, China
| | - Mei-Qin Wu
- The Women's and Children's Department, Shanghai First Maternity and Infant Hospital, School of Medicine, Tongji University, Shanghai, China
- Shanghai Key Laboratory of Maternal Fetal Medicine, Shanghai First Maternity and Infant Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Shan-Shan Geng
- The Women's and Children's Department, Shanghai First Maternity and Infant Hospital, School of Medicine, Tongji University, Shanghai, China
- Shanghai Key Laboratory of Maternal Fetal Medicine, Shanghai First Maternity and Infant Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Li Ke
- State Key Laboratory of Cognitive Neuroscience and Learning, Beijing Normal University, Beijing, China
| | - Bi-Wen Lou
- Leitontech Research Institution, Suzhou, China
| | - Wenchong Du
- Department of Psychology, NTU Psychology, Nottingham Trent University, Nottingham, UK.
| | - Jing Hua
- The Women's and Children's Department, Shanghai First Maternity and Infant Hospital, School of Medicine, Tongji University, Shanghai, China.
- Shanghai Key Laboratory of Maternal Fetal Medicine, Shanghai First Maternity and Infant Hospital, School of Medicine, Tongji University, Shanghai, China.
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Su X, Ying J, Xiao D, Qiu X, Li S, Zhao F, Tang J. Activin A rescues preterm brain injury through a novel Noggin/BMP4/Id2 signaling pathway. Int J Mol Med 2022; 51:12. [PMID: 36524372 PMCID: PMC9848437 DOI: 10.3892/ijmm.2022.5215] [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: 10/14/2022] [Accepted: 12/07/2022] [Indexed: 12/15/2022] Open
Abstract
Activin A (Act A) has been reported to promote oligodendrocyte progenitor cell (OPC) differentiation in vitro and improve neurological outcomes in adult mice. However, the roles and mechanisms of action of Act A in preterm brain injury are unknown. In the present study, P5 rats were subjected to hypoxia‑ischemia to establish a neonatal white matter injury (WMI) model and Act A was injected via the lateral ventricle. Pathological characteristics, OPC differentiation, myelination, and neurological performance were analyzed. Further, the involvement of the Noggin/BMP4/Id2 signaling pathway in the roles of Act A in WMI was explored. Act A attenuated pathological damage, promoted OPC differentiation, enhanced myelin sheath and myelinated axon formation, and improved neurological performance of WMI rats. Moreover, Act A enhanced noggin expression, which, in turn, inhibited the expression of bone morphogenetic protein 4 (BMP4) and inhibitor of DNA binding 2 (Id2). Furthermore, upregulation of Id2 completely abolished the rescue effects of Act A in WMI rats. In conclusion, the present findings suggested that Act A rescues preterm brain injury via targeting a novel Noggin/BMP4/Id2 signaling pathway.
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Affiliation(s)
| | | | | | | | | | | | - Jun Tang
- Correspondence to: Professor Jun Tang, Department of Pediatrics/Key Laboratory of Birth Defects and Related Diseases of Women and Children (Ministry of Education), West China Second University Hospital, Sichuan University, Section 3, 20 South Renmin Road, Chengdu, Sichuan 610041, P.R. China, E-mail:
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4
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van 't Westende C, Steggerda SJ, Jansen L, van den Berg-Huysmans AA, van de Pol LA, Wiggers-de Bruine FT, Stam CJ, Peeters-Scholte CMPCD. Combining advanced MRI and EEG techniques better explains long-term motor outcome after very preterm birth. Pediatr Res 2022; 91:1874-1881. [PMID: 34031571 DOI: 10.1038/s41390-021-01571-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Revised: 02/20/2021] [Accepted: 04/26/2021] [Indexed: 02/04/2023]
Abstract
BACKGROUND Preterm born children are at high risk for adverse motor neurodevelopment. The aim of this study was to establish the relationship between motor outcome and advanced magnetic resonance imaging (MRI) and electroencephalography (EEG) measures. METHODS In a prospective cohort study of 64 very preterm born children, the motor outcome was assessed at 9.83 (SD 0.70) years. Volumetric MRI, diffusion tensor imaging (DTI), and EEG were acquired at 10.85 (SD 0.49) years. We investigated associations between motor outcome and brain volumes (white matter, deep gray matter, cerebellum, and ventricles), white matter integrity (fractional anisotropy and mean, axial and radial diffusivity), and brain activity (upper alpha (A2) functional connectivity and relative A2 power). The independence of associations with motor outcome was investigated with a final model. For each technique, the measure with the strongest association was selected to avoid multicollinearity. RESULTS Ventricular volume, radial diffusivity, mean diffusivity, relative A2 power, and A2 functional connectivity were significantly correlated to motor outcome. The final model showed that ventricular volume and relative A2 power were independently associated with motor outcome (B = -9.42 × 10-5, p = 0.027 and B = 28.9, p = 0.007, respectively). CONCLUSIONS This study suggests that a lasting interplay exists between brain structure and function that might underlie motor outcome at school age. IMPACT This is the first study that investigates the relationships between motor outcome and brain volumes, DTI, and brain function in preterm born children at school age. Ventricular volume and relative upper alpha power on EEG have an independent relation with motor outcome in preterm born children at school age. This suggests that there is a lasting interplay between structure and function that underlies adverse motor outcome.
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Affiliation(s)
- Charlotte van 't Westende
- Department of Child Neurology, Amsterdam University Medical Centers, AMC Site, Amsterdam, The Netherlands. .,Department of Neonatology, Leiden University Medical Center, Leiden, The Netherlands.
| | - Sylke J Steggerda
- Department of Neonatology, Leiden University Medical Center, Leiden, The Netherlands
| | - Lisette Jansen
- Department of Psychology, Leiden University Medical Center, Leiden, The Netherlands
| | | | - Laura A van de Pol
- Department of Child Neurology, Amsterdam University Medical Centers, AMC Site, Amsterdam, The Netherlands
| | | | - Cornelis J Stam
- Department of Clinical Neurophysiology, Amsterdam University Medical Centers, VUmc Site, Amsterdam, The Netherlands
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Abstract
Faces hold a substantial value for effective social interactions and sharing. Covering faces with masks, due to COVID-19 regulations, may lead to difficulties in using social signals, in particular, in individuals with neurodevelopmental conditions. Daily-life social participation of individuals who were born preterm is of immense importance for their quality of life. Here we examined face tuning in individuals (aged 12.79 ± 1.89 years) who were born preterm and exhibited signs of periventricular leukomalacia (PVL), a dominant form of brain injury in preterm birth survivors. For assessing the face sensitivity in this population, we implemented a recently developed experimental tool, a set of Face-n-Food images bordering on the style of Giuseppe Arcimboldo. The key benefit of these images is that single components do not trigger face processing. Although a coarse face schema is thought to be hardwired in the brain, former preterms exhibit substantial shortages in the face tuning not only compared with typically developing controls but also with individuals with autistic spectrum disorders. The lack of correlations between the face sensitivity and other cognitive abilities indicates that these deficits are domain-specific. This underscores impact of preterm birth sequelae for social functioning at large. Comparison of the findings with data in individuals with other neurodevelopmental and neuropsychiatric conditions provides novel insights into the origins of deficient face processing.
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Qin M, Liu Y, Sun M, Li X, Xu J, Zhang L, Jiang H. Protective effects of melatonin on the white matter damage of neonatal rats by regulating NLRP3 inflammasome activity. Neuroreport 2021; 32:739-747. [PMID: 33994520 DOI: 10.1097/wnr.0000000000001642] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVE The aim of the study was to investigate the protective effects and relevant mechanisms of melatonin on the white matter damage (WMD) caused by endotoxin and ischemic hypoxia in neonatal rats. METHODS Seventy-two female neonatal rats (postnatal day 3) were randomly divided into the sham, melatonin-treated, and control groups (n = 24 for each group). The periventricular white matter was collected to evaluate the WMD and apoptosis. In addition, the reactive oxygen species (ROS) level was measured. The expression levels of nucleotide-binding domain-like receptor protein 3 (NLRP3), interleukin (IL)-1β, IL-18, pink1, parkin, Toll-like receptor (TLR)-4, and nuclear factor (NF)-κB were detected. RESULTS Hematoxylin and eosin and terminal-deoxynucleoitidyl transferase mediated nick end labeling staining showed that the WMD, as well as cell degeneration, necrosis, and apoptosis in the control group, were more severe than those in the melatonin-treated group. Endotoxin and ischemic hypoxia upregulated the expression of NLRP3 and downstream inflammatory factors such as IL-1β and IL-18, which could be reversed by melatonin treatment. Melatonin increased mitochondrial autophagy marker (pink1 and parkin) expression in the white matter and reduced ROS production. Moreover, melatonin-reduced TLR4 and NF-κB expression. CONCLUSIONS Melatonin can inhibit the hyperactivity of NLRP3 inflammasomes by enhancing mitochondrial autophagy and inhibiting TLR4/NF-κB pathway activity. Thus, melatonin may be a promising treatment for alleviating the WMD caused by endotoxin and ischemic hypoxia in neonatal rats.
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Affiliation(s)
- Miao Qin
- Department of Neonatology, Affiliated Hospital of Qingdao University, Qingdao, China
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Diao S, Xiao M, Chen C. The role of hyaluronan in myelination and remyelination after white matter injury. Brain Res 2021; 1766:147522. [PMID: 34010609 DOI: 10.1016/j.brainres.2021.147522] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Revised: 04/28/2021] [Accepted: 05/11/2021] [Indexed: 12/19/2022]
Abstract
Hyaluronan is one of the major components of the neural extracellular matrix (ECM) and provides structural support in physiological conditions. Altered hyaluronan regulation is implicated in the pathogenesis of white matter injury (WMI), such as perinatal WMI, multiple sclerosis (MS), traumatic brain injury (TBI). Early research reported diverse central nervous system (CNS) insults led to accumulated high-molecular-weight (HMW) hyaluronan in hypomyelinating/demyelinating lesions. Furthermore, recent findings have shown an elevated production of hyaluronan fragments in WMI, possibly resulting from HMW hyaluronan degradation. Subsequent in vitro studies identified bioactive hyaluronan fragments with a specific molecular weight (around 2x105 Da) regulating oligodendrocyte precursor cells (OPCs) maturation and myelination/remyelination in WMI. However, it is unclear about the effective hyaluronidases in generating bioactive hyaluronan fragments. Several hyaluronidases are proposed recently. Although PH20 is shown to block OPCs maturation by generating bioactive hyaluronan fragments in vitro, it seems unlikely to play a primary role in WMI with negligible expression levels in vivo. The role of other hyaluronidases on OPCs maturation and myelination/remyelination is still unknown. Other than hyaluronidases, CD44 and Toll-like receptors 2 (TLR2) are also implicated in HMW hyaluronan degradation in WMI. Moreover, recent studies elucidated bioactive hyaluronan fragments interact with TLR4, initiating signaling cascades to mediate myelin basic protein (MBP) transcription. Identifying key factors in hyaluronan actions may provide novel therapeutic targets to promote OPCs maturation and myelination/remyelination in WMI.
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Affiliation(s)
- Sihao Diao
- Department of Neonatology, Children's Hospital of Fudan University, Shanghai 201102, China; Key Laboratory of Neonatal Diseases, National Health Commission, China
| | - Mili Xiao
- Department of Neonatology, Children's Hospital of Fudan University, Shanghai 201102, China; Key Laboratory of Neonatal Diseases, National Health Commission, China
| | - Chao Chen
- Department of Neonatology, Children's Hospital of Fudan University, Shanghai 201102, China; Key Laboratory of Neonatal Diseases, National Health Commission, China.
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Wendel K, Pfeiffer HCV, Fugelseth DM, Nestaas E, Domellöf M, Skålhegg BS, Elgstøen KBP, Rootwelt H, Pettersen RD, Pripp AH, Stiris T, Moltu SJ. Effects of nutrition therapy on growth, inflammation and metabolism in immature infants: a study protocol of a double-blind randomized controlled trial (ImNuT). BMC Pediatr 2021; 21:19. [PMID: 33407269 PMCID: PMC7789285 DOI: 10.1186/s12887-020-02425-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Accepted: 11/10/2020] [Indexed: 12/19/2022] Open
Abstract
Background Current nutritional management of infants born very preterm results in significant deficiency of the essential fatty acids (FAs) arachidonic acid (ARA) and docosahexaenoic acid (DHA). The impact of this deficit on brain maturation and inflammation mediated neonatal morbidities are unknown. The aim of this study is to determine whether early supply of ARA and DHA improves brain maturation and neonatal outcomes in infants born before 29 weeks of gestation. Methods Infants born at Oslo University Hospital are eligible to participate in this double-blind randomized controlled trial. Study participants are randomized to receive an enteral FA supplement of either 0.4 ml/kg MCT-oil™ (medium chain triglycerides) or 0.4 ml/kg Formulaid™ (100 mg/kg of ARA and 50 mg/kg of DHA). The FA supplement is given from the second day of life to 36 weeks’ postmenstrual age (PMA). The primary outcome is brain maturation assessed by Magnetic Resonance Imaging (MRI) at term equivalent age. Secondary outcomes include quality of growth, incidence of neonatal morbidities, cardiovascular health and neuro-development. Target sample size is 120 infants (60 per group), this will provide 80% power to detect a 0.04 difference in mean diffusivity (MD, mm2/sec) in major white matter tracts on MRI. Discussion Supplementation of ARA and DHA has the potential to improve brain maturation and reduce inflammation related diseases. This study is expected to provide valuable information for future nutritional guidelines for preterm infants. Trial registration Clinicaltrials.gov ID: NCT03555019. Registered 4 October 2018- Retrospectively registered.
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Affiliation(s)
- Kristina Wendel
- Department of Neonatal Intensive Care, Oslo University Hospital, Oslo, Norway.
| | - Helle Cecilie Viekilde Pfeiffer
- Department of Neonatal Intensive Care, Oslo University Hospital, Oslo, Norway.,Department of Pediatric Neurology, Oslo University Hospital, Oslo, Norway
| | - Drude Merete Fugelseth
- Department of Neonatal Intensive Care, Oslo University Hospital, Oslo, Norway.,Institute of Clinical Medicine, University of Oslo, Oslo, Norway
| | - Eirik Nestaas
- Department of Neonatal Intensive Care, Oslo University Hospital, Oslo, Norway.,Department of Pediatrics, Vestfold Hospital Trust, Tønsberg, Norway
| | - Magnus Domellöf
- Department of Clinical Sciences, Pediatrics, Umea University, Umea, Sweden
| | - Bjorn Steen Skålhegg
- Division of Molecular Nutrition, Department of Nutrition, University of Oslo, Oslo, Norway
| | | | - Helge Rootwelt
- Department of Medical Biochemistry, Oslo University Hospital, Oslo, Norway
| | - Rolf Dagfinn Pettersen
- Norwegian National Unit for Newborn Screening, Division of Pediatric and Adolescent Medicine, Oslo University Hospital, Oslo, Norway
| | - Are Hugo Pripp
- Oslo Centre of Biostatistics and Epidemiology, Oslo University Hospital, Oslo, Norway
| | - Tom Stiris
- Department of Neonatal Intensive Care, Oslo University Hospital, Oslo, Norway.,Institute of Clinical Medicine, University of Oslo, Oslo, Norway
| | - Sissel J Moltu
- Department of Neonatal Intensive Care, Oslo University Hospital, Oslo, Norway
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DeLisi LE. What a Clinician Should Know About the Neurobiology of Schizophrenia: A Historical Perspective to Current Understanding. FOCUS (AMERICAN PSYCHIATRIC PUBLISHING) 2020; 18:368-374. [PMID: 33343248 PMCID: PMC7725146 DOI: 10.1176/appi.focus.20200022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The brain is no doubt the "organ" of psychiatry; yet, over the years, few evidence-based classifications of psychiatric disorders have been based on brain mechanisms. The National Institute of Mental Health notably proposed one such system, known as Research Domain Criteria, although it has not yet influenced any changes in the DSM. Of all the major psychiatric disorders, the brain has been studied most extensively in schizophrenia, with its speculative pathology first documented by Emil Kraepelin as early as the beginning of the 20th century. Subsequently, the revolution in technology over the past 50 years has changed how investigators are able to view the brain before death without performing biopsies. Schizophrenia is thus found to have both structural and functional widespread brain anomalies that likely lead to its clinical deterioration. At the onset of illness, acquiring an MRI scan could be part of the routine evaluation to determine how progressive the disease has so far been. However, this practice is not yet recognized by the American Psychiatric Association in any of its guidelines on the treatment of schizophrenia.
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Affiliation(s)
- Lynn E DeLisi
- Department of Psychiatry, Harvard Medical School, Boston, and Cambridge Health Alliance, Cambridge Hospital, Cambridge, Massachusetts
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Wang D, Ye X, Xie H, Liu Y, Xu Y, Wang Y, Zhou Y, Zhou N, Wang J. Profiling analysis reveals the potential contribution of long non-coding RNAs to preterm white matter injury. Life Sci 2020; 255:117815. [PMID: 32442450 DOI: 10.1016/j.lfs.2020.117815] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2019] [Revised: 05/09/2020] [Accepted: 05/15/2020] [Indexed: 12/15/2022]
Abstract
AIMS The aim of this study was to investigate the molecular mechanism underlying preterm white matter injury (WMI) via the identification and functional analysis of differentially expressed long non-coding RNAs (lncRNAs) and mRNAs. MAIN METHODS A neonatal rat model of preterm WMI was established by ligating the common carotid artery and hypoxia induction. RNA sequencing was performed to analyze gene expression profiles of brain samples. Gene Ontology (GO) and Kyoto Encyclopedia of Genes (KEGG) analyses were performed to evaluate functions of target mRNAs. A co-expression network was generated to explore regulatory mechanisms. KEY FINDINGS In total, 210 lncRNAs and 619 mRNAs were differentially expressed between the preterm WMI group and the sham group. Based on GO and KEGG analyses, enriched pathways included the apoptotic signaling pathway, vascular endothelial growth factor (VEGF) signaling pathway, natural killer cell-mediated cytotoxicity pathway, and the autophagy pathway. SIGNIFICANCE Differentially expressed lncRNAs and mRNAs in the brain tissues of preterm WMI model were identified, and the biological processes were closely associated with the development of preterm WMI, thus being considered potential targets for future studies.
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Affiliation(s)
- Dayu Wang
- The Affiliated Hospital of Xuzhou Medical University, Xuzhou 221000, China
| | - Xiaoyan Ye
- The Affiliated Hospital of Xuzhou Medical University, Xuzhou 221000, China
| | - Hanying Xie
- The Affiliated Hospital of Xuzhou Medical University, Xuzhou 221000, China
| | - Yiwen Liu
- The Affiliated Hospital of Xuzhou Medical University, Xuzhou 221000, China
| | - Yan Xu
- The Affiliated Hospital of Xuzhou Medical University, Xuzhou 221000, China
| | - Yao Wang
- The Affiliated Hospital of Xuzhou Medical University, Xuzhou 221000, China
| | - Yang Zhou
- The Affiliated Hospital of Xuzhou Medical University, Xuzhou 221000, China
| | - Ning Zhou
- Xuzhou Medical University, Xuzhou 221000, China
| | - Jun Wang
- The Affiliated Hospital of Xuzhou Medical University, Xuzhou 221000, China.
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Barbosa VM, Powlesland J. Behavioral Organization in Infants with Intraventricular Hemorrhage: Characteristics and Clinical Implications. Neonatal Netw 2018; 37:310-318. [PMID: 30567813 DOI: 10.1891/0730-0832.37.5.310] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
PURPOSE This study examined the neurobehavioral functioning in preterm infants diagnosed with intraventricular hemorrhage (IVH) grades III and IV, using the Assessment of Preterm Infants' Behavior (APIB). DESIGN AND SAMPLE The APIB was completed on nine infants with IVH III/IV at 36 and 40weeks postmenstrual age to determine the effects of IVH on the neurobehavioral functioning and maturation over time. The APIB neurobehavioral scores (i.e., physiologic, motor, state, attention/interaction, regulatory, and examiner facilitation subsystem scores) were examined in relation to the two different testing times and to infants without lesion. RESULTS APIB scores at 36weeks suggested easily disorganized and poorly modulated behavioral regulation and low threshold of disorganization and stress. At 40 weeks, poor overall behavioral regulation persisted; only motor differences statistically improved between the two ages. Neurobehavior was significantly poor in all but state subsystems when tested at both ages in infants with a brain lesion.
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MESH Headings
- Cerebral Intraventricular Hemorrhage/complications
- Cerebral Intraventricular Hemorrhage/diagnosis
- Cerebral Intraventricular Hemorrhage/therapy
- Female
- Humans
- Illinois
- Infant
- Infant Behavior/physiology
- Infant, Low Birth Weight
- Infant, Newborn
- Infant, Newborn, Diseases/diagnosis
- Infant, Newborn, Diseases/therapy
- Infant, Premature
- Infant, Premature, Diseases/diagnosis
- Infant, Premature, Diseases/therapy
- Male
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