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DiPiero MA, Rodrigues PG, Justman M, Roche S, Bond E, Gonzalez JG, Davidson RJ, Planalp EM, Dean DC. Gray matter based spatial statistics framework in the 1-month brain: insights into gray matter microstructure in infancy. Brain Struct Funct 2024:10.1007/s00429-024-02853-w. [PMID: 39313671 DOI: 10.1007/s00429-024-02853-w] [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: 04/17/2024] [Accepted: 08/27/2024] [Indexed: 09/25/2024]
Abstract
The neurodevelopmental epoch from fetal stages to early life embodies a critical window of peak growth and plasticity in which differences believed to be associated with many neurodevelopmental and psychiatric disorders first emerge. Obtaining a detailed understanding of the developmental trajectories of the cortical gray matter microstructure is necessary to characterize differential patterns of neurodevelopment that may subserve future intellectual, behavioral, and psychiatric challenges. The neurite orientation dispersion density imaging (NODDI) Gray-Matter Based Spatial Statistics (GBSS) framework leverages information from the NODDI model to enable sensitive characterization of the gray matter microstructure while limiting partial volume contamination and misregistration errors between images collected in different spaces. However, limited contrast of the underdeveloped brain poses challenges for implementing this framework with infant diffusion MRI (dMRI) data. In this work, we aim to examine the development of cortical microstructure in infants. We utilize the NODDI GBSS framework and propose refinements to the original framework that aim to improve the delineation and characterization of gray matter in the infant brain. Taking this approach, we cross-sectionally investigate age relationships in the developing gray matter microstructural organization in infants within the first month of life and reveal widespread relationships with the gray matter architecture.
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Affiliation(s)
- Marissa A DiPiero
- Waisman Center, University of Wisconsin-Madison, Madison, 53705, WI, USA
- Department of Medical Physics, University of Wisconsin-Madison, Madison, WI, USA
- Department of Pediatrics, University of Wisconsin-Madison, Madison, WI, USA
| | | | - McKaylie Justman
- Waisman Center, University of Wisconsin-Madison, Madison, 53705, WI, USA
| | - Sophia Roche
- Waisman Center, University of Wisconsin-Madison, Madison, 53705, WI, USA
| | - Elizabeth Bond
- Waisman Center, University of Wisconsin-Madison, Madison, 53705, WI, USA
| | - Jose Guerrero Gonzalez
- Waisman Center, University of Wisconsin-Madison, Madison, 53705, WI, USA
- Department of Medical Physics, University of Wisconsin-Madison, Madison, WI, USA
| | - Richard J Davidson
- Waisman Center, University of Wisconsin-Madison, Madison, 53705, WI, USA
- Department of Psychology, University of Wisconsin-Madison, Madison, WI, USA
- Center for Healthy Minds, University of Wisconsin-Madison, Madison, WI, USA
- Department of Psychiatry, University of Wisconsin-Madison, Madison, WI, USA
| | - Elizabeth M Planalp
- Wisconsin Alzheimer's Disease Research Center, University of Wisconsin-Madison School of Medicine and Public Health, Madison, WI, USA
| | - Douglas C Dean
- Waisman Center, University of Wisconsin-Madison, Madison, 53705, WI, USA.
- Department of Medical Physics, University of Wisconsin-Madison, Madison, WI, USA.
- Department of Pediatrics, University of Wisconsin-Madison, Madison, WI, USA.
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Biouss G, Antounians L, Aguet J, Kopcalic K, Fakhari N, Baranger J, Mertens L, Villemain O, Zani A. The brain of fetuses with congenital diaphragmatic hernia shows signs of hypoxic injury with loss of progenitor cells, neurons, and oligodendrocytes. Sci Rep 2024; 14:13680. [PMID: 38871804 DOI: 10.1038/s41598-024-64412-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2024] [Accepted: 06/08/2024] [Indexed: 06/15/2024] Open
Abstract
Congenital diaphragmatic hernia (CDH) is a birth defect characterized by incomplete closure of the diaphragm, herniation of abdominal organs into the chest, and compression of the lungs and the heart. Besides complications related to pulmonary hypoplasia, 1 in 4 survivors develop neurodevelopmental impairment, whose etiology remains unclear. Using a fetal rat model of CDH, we demonstrated that the compression exerted by herniated organs on the mediastinal structures results in decreased brain perfusion on ultrafast ultrasound, cerebral hypoxia with compensatory angiogenesis, mature neuron and oligodendrocyte loss, and activated microglia. In CDH fetuses, apoptosis was prominent in the subventricular and subgranular zones, areas that are key for neurogenesis. We validated these findings in the autopsy samples of four human fetuses with CDH compared to age- and sex-matched controls. This study reveals the molecular mechanisms and cellular changes that occur in the brain of fetuses with CDH and creates opportunities for therapeutic targets.
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Affiliation(s)
- George Biouss
- Developmental and Stem Cell Biology Program, Peter Gilgan Centre for Research and Learning, The Hospital for Sick Children, 686 Bay Street, Toronto, ON, M5G 0A4, Canada
- Division of General and Thoracic Surgery, The Hospital for Sick Children, 555 University Avenue, Toronto, ON, M5G 1X8, Canada
| | - Lina Antounians
- Developmental and Stem Cell Biology Program, Peter Gilgan Centre for Research and Learning, The Hospital for Sick Children, 686 Bay Street, Toronto, ON, M5G 0A4, Canada
- Division of General and Thoracic Surgery, The Hospital for Sick Children, 555 University Avenue, Toronto, ON, M5G 1X8, Canada
| | - Julien Aguet
- Department of Diagnostic Imaging, The Hospital for Sick Children, 555 University Avenue, Toronto, ON, M5G 1X8, Canada
- Department of Medical Imaging, University of Toronto, 263 McCaul Street, Toronto, ON, M5T 1W7, Canada
| | - Katarina Kopcalic
- Developmental and Stem Cell Biology Program, Peter Gilgan Centre for Research and Learning, The Hospital for Sick Children, 686 Bay Street, Toronto, ON, M5G 0A4, Canada
- Division of General and Thoracic Surgery, The Hospital for Sick Children, 555 University Avenue, Toronto, ON, M5G 1X8, Canada
| | - Nikan Fakhari
- Translation Medicine, Peter Gilgan Centre for Research and Learning, The Hospital for Sick Children, 686 Bay Street, Toronto, ON, M5G 0A4, Canada
| | - Jerome Baranger
- Translation Medicine, Peter Gilgan Centre for Research and Learning, The Hospital for Sick Children, 686 Bay Street, Toronto, ON, M5G 0A4, Canada
- Department of Pediatrics, Labatt Family Heart Centre, The Hospital for Sick Children, 555 University Avenue, Toronto, ON, M5G 1X8, Canada
| | - Luc Mertens
- Translation Medicine, Peter Gilgan Centre for Research and Learning, The Hospital for Sick Children, 686 Bay Street, Toronto, ON, M5G 0A4, Canada
- Department of Pediatrics, Labatt Family Heart Centre, The Hospital for Sick Children, 555 University Avenue, Toronto, ON, M5G 1X8, Canada
| | - Olivier Villemain
- Translation Medicine, Peter Gilgan Centre for Research and Learning, The Hospital for Sick Children, 686 Bay Street, Toronto, ON, M5G 0A4, Canada
- Department of Pediatrics, Labatt Family Heart Centre, The Hospital for Sick Children, 555 University Avenue, Toronto, ON, M5G 1X8, Canada
- Department of Medical Biophysics, University of Toronto, 101 College Street, Toronto, ON, M5G 1L7, Canada
| | - Augusto Zani
- Developmental and Stem Cell Biology Program, Peter Gilgan Centre for Research and Learning, The Hospital for Sick Children, 686 Bay Street, Toronto, ON, M5G 0A4, Canada.
- Division of General and Thoracic Surgery, The Hospital for Sick Children, 555 University Avenue, Toronto, ON, M5G 1X8, Canada.
- Department of Surgery, University of Toronto, 200 Elizabeth Street, Toronto, ON, M5G 2C4, Canada.
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Dutton A, Patel CD, Taylor SA, Garland CR, Turnbaugh EM, Alers-Velazquez R, Mehrbach J, Nautiyal KM, Leib DA. Asymptomatic neonatal herpes simplex virus infection in mice leads to long-term cognitive impairment. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.04.22.590596. [PMID: 38712140 PMCID: PMC11071430 DOI: 10.1101/2024.04.22.590596] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2024]
Abstract
Neonatal herpes simplex virus (nHSV) is a devastating infection impacting approximately 14,000 newborns globally each year. Infection is associated with high neurologic morbidity and mortality, making early intervention and treatment critical. Clinical outcomes of symptomatic nHSV infections are well-studied, but little is known about the frequency of, or outcomes following, sub-clinical or asymptomatic nHSV. Given the ubiquitous nature of HSV infection and frequency of asymptomatic shedding in adults, subclinical infections are underreported, yet could contribute to long-term neurological damage. To assess potential neurological morbidity associated with subclinical nHSV infection, we developed a low-dose (100 PFU) HSV infection protocol in neonatal C57BL/6 mice. At this dose, HSV DNA was detected in the brain by PCR but was not associated with acute clinical symptoms. However, months after initial inoculation with 100 PFU of HSV, we observed impaired mouse performance on a range of cognitive and memory performance tasks. Memory impairment was induced by infection with either HSV-1 or HSV-2 wild-type viruses, but not by a viral mutant lacking the autophagy-modulating Beclin-binding domain of the neurovirulence gene γ34.5. Retroviral expression of wild type γ34.5 gene led to behavioral pathology in mice, suggesting that γ34.5 expression may be sufficient to cause cognitive impairment. Maternal immunization and HSV-specific antibody treatment prevented offspring from developing neurological sequelae following nHSV-1 infection. Altogether, these results support the idea that subclinical neonatal infections may lead to cognitive decline in adulthood, with possible profound implications for research on human neurodegenerative disorders such as Alzheimer's Disease.
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Gan H, Xing Y, Tong J, Lu M, Yan S, Huang K, Wu X, Tao S, Gao H, Pan Y, Dai J, Tao F. Impact of Gestational Exposure to Individual and Combined Per- and Polyfluoroalkyl Substances on a Placental Structure and Efficiency: Findings from the Ma'anshan Birth Cohort. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2024; 58:6117-6127. [PMID: 38525964 DOI: 10.1021/acs.est.3c09611] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/26/2024]
Abstract
Prenatal exposure to perfluoroalkyl and polyfluoroalkyl substances (PFASs) is inevitable among pregnant women. Nevertheless, there is a scarcity of research investigating the connections between prenatal PFAS exposure and the placental structure and efficiency. Based on 712 maternal-fetal dyads in the Ma'anshan Birth Cohort, we analyzed associations between individual and mixed PFAS exposure and placental measures. We repeatedly measured 12 PFAS in the maternal serum during pregnancy. Placental weight, scaling exponent, chorionic disc area, and disc eccentricity were used as the outcome variables. Upon adjusting for confounders and implementing corrections for multiple comparisons, we identified positive associations between branched perfluorohexane sulfonate (br-PFHxS) and 6:2 chlorinated polyfluorinated ether sulfonate (6:2 Cl-PFESA) with placental weight. Additionally, a positive association was observed between br-PFHxS and the scaling exponent, where a higher scaling exponent signified reduced placental efficiency. Based on neonatal sex stratification, female infants were found to be more susceptible to the adverse effects of PFAS exposure. Mixed exposure modeling revealed that mixed PFAS exposure was positively associated with placental weight and scaling exponent, particularly during the second and third trimesters. Furthermore, br-PFHxS and 6:2 Cl-PFESA played major roles in the placental measures. This study provides the first epidemiological evidence of the relationship between prenatal PFAS exposure and placental measures.
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Affiliation(s)
- Hong Gan
- Department of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University, No 81 Meishan Road, Hefei 230032 Anhui, China
- Key Laboratory of Population Health Across Life Cycle (Anhui Medical University), Ministry of Education of the People's Republic of China, No 81 Meishan Road, Hefei 230032 Anhui, China
- Anhui Provincial Key Laboratory of Population Health and Aristogenics, Anhui Medical University, No 81 Meishan Road, Hefei 230032 Anhui, China
| | - Yanan Xing
- State Environmental Protection Key Laboratory of Environmental Health Impact Assessment of Emerging Contaminants, School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Juan Tong
- Department of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University, No 81 Meishan Road, Hefei 230032 Anhui, China
- Key Laboratory of Population Health Across Life Cycle (Anhui Medical University), Ministry of Education of the People's Republic of China, No 81 Meishan Road, Hefei 230032 Anhui, China
- Anhui Provincial Key Laboratory of Population Health and Aristogenics, Anhui Medical University, No 81 Meishan Road, Hefei 230032 Anhui, China
| | - Mengjuan Lu
- Department of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University, No 81 Meishan Road, Hefei 230032 Anhui, China
- Key Laboratory of Population Health Across Life Cycle (Anhui Medical University), Ministry of Education of the People's Republic of China, No 81 Meishan Road, Hefei 230032 Anhui, China
- Anhui Provincial Key Laboratory of Population Health and Aristogenics, Anhui Medical University, No 81 Meishan Road, Hefei 230032 Anhui, China
| | - Shuangqin Yan
- Ma'anshan Maternal and Child Health Care Hospital, Ma'anshan 243011 Anhui, China
| | - Kun Huang
- Department of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University, No 81 Meishan Road, Hefei 230032 Anhui, China
- Key Laboratory of Population Health Across Life Cycle (Anhui Medical University), Ministry of Education of the People's Republic of China, No 81 Meishan Road, Hefei 230032 Anhui, China
- Anhui Provincial Key Laboratory of Population Health and Aristogenics, Anhui Medical University, No 81 Meishan Road, Hefei 230032 Anhui, China
| | - Xiaoyan Wu
- Department of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University, No 81 Meishan Road, Hefei 230032 Anhui, China
- Key Laboratory of Population Health Across Life Cycle (Anhui Medical University), Ministry of Education of the People's Republic of China, No 81 Meishan Road, Hefei 230032 Anhui, China
- Anhui Provincial Key Laboratory of Population Health and Aristogenics, Anhui Medical University, No 81 Meishan Road, Hefei 230032 Anhui, China
| | - Shuman Tao
- Department of Ophthalmology, The Second Affiliated Hospital of Anhui Medical University, Hefei 230022, China
| | - Hui Gao
- Department of Pediatrics, The First Affiliated Hospital of Anhui Medical University, Hefei 230022 Anhui, China
| | - Yitao Pan
- State Environmental Protection Key Laboratory of Environmental Health Impact Assessment of Emerging Contaminants, School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Jiayin Dai
- State Environmental Protection Key Laboratory of Environmental Health Impact Assessment of Emerging Contaminants, School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Fangbiao Tao
- Department of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University, No 81 Meishan Road, Hefei 230032 Anhui, China
- Key Laboratory of Population Health Across Life Cycle (Anhui Medical University), Ministry of Education of the People's Republic of China, No 81 Meishan Road, Hefei 230032 Anhui, China
- Anhui Provincial Key Laboratory of Population Health and Aristogenics, Anhui Medical University, No 81 Meishan Road, Hefei 230032 Anhui, China
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Hendrikx D, Caicedo Dorado A, Van Huffel S, Naulaers G, Wolfsberger C, Urlesberger B, Pichler G. Coupling between Regional Oxygen Saturation of the Brain and Vital Signs during Immediate Transition after Birth. Neonatology 2024; 121:421-430. [PMID: 38588640 DOI: 10.1159/000534524] [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: 03/26/2023] [Accepted: 10/05/2023] [Indexed: 04/10/2024]
Abstract
INTRODUCTION The primary aim was to analyze any coupling of heart rate (HR)/arterial oxygen saturation (SpO2) and regional cerebral oxygen saturation (rScO2) and regional cerebral fractional tissue oxygen extraction (cFTOE) during immediate transition after birth in term and preterm neonates to gain more insight into interactions. METHODS The present study is a post hoc analysis of data from 106 neonates, obtained from a prospective, observational study. Measurements of HR, SpO2, rScO2, and cFTOE were performed during the first 15 min after birth. The linear and nonlinear correlation were computed between these parameters in a sliding window. The resulting coupling curves were clustered. After clustering, demographic data of the clusters were de-blinded and compared. RESULTS Due to missing data, 58 out of 106 eligible patients were excluded. Two clusters were obtained: cluster 1 (N = 39) and cluster 2 (N = 9). SpO2 had linear and nonlinear correlations with rScO2 and cFTOE, whereby the correlations with rScO2 were more pronounced in cluster 2. HR-rScO2 and HR-cFTOE demonstrated a nonlinear correlation in both clusters, again being more pronounced in cluster 2, whereby linear correlations were mainly absent. After de-blinding, the demographic data revealed that the neonates in cluster 2 had significantly lower gestational age (mainly preterm) compared to cluster 1 (mainly term). DISCUSSION Besides SpO2, also HR demonstrated a nonlinear correlation with rScO2 and cFTOE in term and preterm neonates during immediate transition after birth. In addition, the coupling of SpO2 and HR with cerebral oxygenation was more pronounced in neonates with a lower gestational age.
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Affiliation(s)
- Dries Hendrikx
- Department of Electrical Engineering (ESAT), STADIUS Center for Dynamical Systems, Signal Processing and Data Analytics, KU Leuven, Leuven, Belgium
| | | | - Sabine Van Huffel
- Department of Electrical Engineering (ESAT), STADIUS Center for Dynamical Systems, Signal Processing and Data Analytics, KU Leuven, Leuven, Belgium
| | - Gunnar Naulaers
- Department of Development and Regeneration, KU Leuven, Leuven, Belgium
- Neonatal Intensive Care Unit, University Hospitals Leuven, Leuven, Belgium
| | - Christina Wolfsberger
- Department of Pediatrics, Medical University of Graz, Graz, Austria
- Research Unit of Micro- and Macrocirculation of the Neonate, Medical University of Graz, Graz, Austria
| | | | - Gerhard Pichler
- Department of Pediatrics, Medical University of Graz, Graz, Austria
- Research Unit of Micro- and Macrocirculation of the Neonate, Medical University of Graz, Graz, Austria
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Ertekin O, Buyuktiryaki M, Isik S, Okur N, Oguz SS. Evaluation of cerebral autoregulation of oxygen by NIRS method during postnatal transition period in term and late preterm newborns without resuscitation requirement. J Trop Pediatr 2024; 70:fmae004. [PMID: 38490241 DOI: 10.1093/tropej/fmae004] [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] [Indexed: 03/17/2024]
Abstract
BACKGROUND Pulse oximetry is commonly used to monitor arterial oxygen saturation and heart rate during the transition period and reference intervals have been determined. However, the effect of the change in arterial oxygen saturation on tissue oxygenation does not seem to be the same. So, a non-invasive method for monitoring cerebral or regional tissue oxygenation will be potentially useful for vulnerable infants. This study aims to evaluate the effectiveness of cerebral autoregulation in the first 10 min after delivery in term and late preterm newborns without resuscitation requirement. METHODS Cerebral tissue oxygen saturation was measured in the first 10 min after birth with near-infrared spectroscopy (NIRS) from the left forehead. Peripheral oxygen saturation was measured with pulse oximetry from the right hand and cerebral fractional tissue oxygen extraction was calculated. RESULTS Nineteen late preterms and 20 term infants were included in the study. There was no statistically significant difference between median cerebral tissue oxygen saturation and cerebral fractional tissue oxygen extraction values of late preterm and term infants (p < 0.001). There was a strong inverse relationship between cerebral tissue oxygen saturation and cerebral fractional tissue oxygen extraction (p < 0.001). CONCLUSIONS In late preterm infants similar to term infants, arterial oxygen saturation and cerebral tissue oxygen saturation increased with time, but inverse reduction of cerebral fractional tissue oxygen extraction showed the presence of an active autoregulation in the brain. This can be interpreted as the ability of the brain to protect itself from hypoxia by regulating oxygen uptake during normal fetal-neonatal transition process. A larger scale multi-center randomized control trial is now needed to further inform practice.
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Affiliation(s)
- Omer Ertekin
- Neonatology Unit, Health Sciences University, Ankara Bilkent City Hospital, Çankaya, Ankara 06800, Turkey
| | - Mehmet Buyuktiryaki
- Neonatology Unit, Health Sciences University, Ankara Bilkent City Hospital, Çankaya, Ankara 06800, Turkey
| | - Sehribanu Isik
- Neonatology Unit, Health Sciences University, Ankara Bilkent City Hospital, Çankaya, Ankara 06800, Turkey
| | - Nilufer Okur
- Neonatology Unit, Health Sciences University, Ankara Bilkent City Hospital, Çankaya, Ankara 06800, Turkey
| | - Serife Suna Oguz
- Neonatology Unit, Health Sciences University, Ankara Bilkent City Hospital, Çankaya, Ankara 06800, Turkey
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Cao M, Kuthiala S, Jean KJ, Liu HL, Courchesne M, Nygard K, Burns P, Desrochers A, Fecteau G, Faure C, Frasch MG. The Vagus Nerve Regulates Immunometabolic Homeostasis in the Ovine Fetus near Term: The Impact on Terminal Ileum. BIOLOGY 2024; 13:38. [PMID: 38248469 PMCID: PMC10812930 DOI: 10.3390/biology13010038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Revised: 01/04/2024] [Accepted: 01/05/2024] [Indexed: 01/23/2024]
Abstract
BACKGROUND Glucosensing elements are widely distributed throughout the body and relay information about circulating glucose levels to the brain via the vagus nerve. However, while anatomical wiring has been established, little is known about the physiological role of the vagus nerve in glucosensing. The contribution of the vagus nerve to inflammation in the fetus is poorly understood. Increased glucose levels and inflammation act synergistically when causing organ injury, but their interplay remains incompletely understood. We hypothesized that vagotomy (Vx) will trigger a rise in systemic glucose levels and this will be enhanced during systemic and organ-specific inflammation. Efferent vagus nerve stimulation (VNS) should reverse this phenotype. METHODS Near-term fetal sheep (n = 57) were surgically prepared using vascular catheters and ECG electrodes as the control and treatment groups (lipopolysaccharide (LPS), Vx + LPS, Vx + LPS + selective efferent VNS). The experiment was started 72 h postoperatively to allow for post-surgical recovery. Inflammation was induced with LPS bolus intravenously (LPS group, 400 ng/fetus/day for 2 days; n = 23). For the Vx + LPS group (n = 11), a bilateral cervical vagotomy was performed during surgery; of these n = 5 received double the LPS dose, LPS800. The Vx + LPS + efferent VNS group (n = 8) received cervical VNS probes bilaterally distal from Vx in eight animals. Efferent VNS was administered for 20 min on days 1 and 2 +/10 min around the LPS bolus. Fetal arterial blood samples were drawn on each postoperative day of recovery (-72 h, -48 h, and -24 h) as well as at the baseline and seven selected time points (3-54 h) to profile inflammation (ELISA IL-6, pg/mL), insulin (ELISA), blood gas, and metabolism (glucose). At 54 h post-LPS, a necropsy was performed, and the terminal ileum macrophages' CD11c (M1 phenotype) immunofluorescence was quantified to detect inflammation. The results are reported for p < 0.05 and for Spearman R2 > 0.1. The results are presented as the median (IQR). RESULTS Across the treatment groups, blood gas and cardiovascular changes indicated mild septicemia. At 3 h in the LPS group, IL-6 peaked. That peak was decreased in the Vx + LPS400 group and doubled in the Vx + LPS800 group. The efferent VNS sped up the reduction in the inflammatory response profile over 54 h. The M1 macrophage activity was increased in the LPS and Vx + LPS800 groups only. The glucose and insulin concentrations in the Vx + LPS group were, respectively, 1.3-fold (throughout the experiment) and 2.3-fold higher vs. control (at 3 h). The efferent VNS normalized the glucose concentrations. CONCLUSIONS The complete withdrawal of vagal innervation resulted in a 72-h delayed onset of a sustained increase in glucose for at least 54 h and intermittent hyperinsulinemia. Under the conditions of moderate fetal inflammation, this was related to higher levels of gut inflammation. The efferent VNS reduced the systemic inflammatory response as well as restored both the concentrations of glucose and the degree of terminal ileum inflammation, but not the insulin concentrations. Supporting our hypothesis, these findings revealed a novel regulatory, hormetic, role of the vagus nerve in the immunometabolic response to endotoxin in near-term fetuses.
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Affiliation(s)
- Mingju Cao
- Department of Obstetrics and Gynaecology and Department of Neurosciences, CHU Ste-Justine Research Centre, Université de Montréal, Montréal, QC H3T 1C5, Canada; (M.C.)
| | - Shikha Kuthiala
- Department of Obstetrics and Gynaecology and Department of Neurosciences, CHU Ste-Justine Research Centre, Université de Montréal, Montréal, QC H3T 1C5, Canada; (M.C.)
| | - Keven Jason Jean
- Department of Obstetrics and Gynaecology and Department of Neurosciences, CHU Ste-Justine Research Centre, Université de Montréal, Montréal, QC H3T 1C5, Canada; (M.C.)
| | - Hai Lun Liu
- Department of Obstetrics and Gynaecology and Department of Neurosciences, CHU Ste-Justine Research Centre, Université de Montréal, Montréal, QC H3T 1C5, Canada; (M.C.)
| | - Marc Courchesne
- Biotron Microscopy, Western University, London, ON N6A 3K7, Canada
| | - Karen Nygard
- Biotron Microscopy, Western University, London, ON N6A 3K7, Canada
| | - Patrick Burns
- Clinical Sciences, CHUV, Université de Montréal, St-Hyacinthe, QC J2S 2M2, Canada (A.D.)
| | - André Desrochers
- Clinical Sciences, CHUV, Université de Montréal, St-Hyacinthe, QC J2S 2M2, Canada (A.D.)
| | - Gilles Fecteau
- Clinical Sciences, CHUV, Université de Montréal, St-Hyacinthe, QC J2S 2M2, Canada (A.D.)
| | - Christophe Faure
- Department of Pediatrics, CHU Ste-Justine Research Centre, Université de Montréal, Montréal, QC H3T 1C5, Canada
| | - Martin G. Frasch
- Department of Obstetrics and Gynaecology and Department of Neurosciences, CHU Ste-Justine Research Centre, Université de Montréal, Montréal, QC H3T 1C5, Canada; (M.C.)
- Centre de Recherche en Reproduction Animale, l’Université de Montréal, St-Hyacinthe, QC H3T 1J4, Canada
- Department of Obstetrics and Gynecology and Institute on Human Development and Disability, School of Medicine, University of Washington, 1959 NE Pacific St Box 356460, Seattle, WA 98195, USA
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Zheng X, Ma W, Wang Y, Wu C, Wang J, Ma Z, Wei Y, Cui C, Zhang S, Guan W, Chen F. Heat Stress-Induced Fetal Intrauterine Growth Restriction Is Associated with Elevated LPS Levels Along the Maternal Intestine-Placenta-Fetus Axis in Pregnant Mice. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:19592-19609. [PMID: 38018895 DOI: 10.1021/acs.jafc.3c07058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2023]
Abstract
The exacerbation of the greenhouse effect has made heat stress (HS) an important risk factor for the occurrence of intrauterine growth restriction (IUGR). The experiment aims to uncover the effects of maternal HS on IUGR and its mechanisms. The results showed that HS leads to decreased maternal and fetal birth weights, accompanied by increased serum oxidative stress and cortisol levels. Moreover, HS inflicted significant damage to both the intestinal and placental barriers, altering maternal gut microbiota and increasing intestinal LPS levels. As a result, LPS levels increased in maternal serum, placenta, and fetus. Furthermore, HS damaged the intestinal structure, intensifying inflammation and disrupting the redox balance. The placenta exposed to HS exhibited changes in the placental structure along with disrupted angiogenesis and decreased levels of nutritional transporters. Additionally, the leakage of LPS triggered placental JNK and ERK phosphorylation, ultimately inducing severe placental inflammation and oxidative stress. This study suggests that LPS translocation from the maternal intestine to the fetus, due to a disrupted gut microbiota balance and compromised intestinal and placental barrier integrity, may be the primary cause of HS-induced IUGR. Furthermore, increased LPS leakage leads to placental inflammation, redox imbalance, and impaired nutrient transport, further restricting fetal growth.
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Affiliation(s)
- Xiaoyu Zheng
- College of Animal Science, South China Agricultural University, Guangdong Province, Guangzhou 510642, China
| | - Wen Ma
- College of Animal Science, South China Agricultural University, Guangdong Province, Guangzhou 510642, China
| | - Yibo Wang
- College of Animal Science, South China Agricultural University, Guangdong Province, Guangzhou 510642, China
| | - Caichi Wu
- College of Animal Science, South China Agricultural University, Guangdong Province, Guangzhou 510642, China
| | - Jun Wang
- College of Animal Science, South China Agricultural University, Guangdong Province, Guangzhou 510642, China
| | - Ziwei Ma
- College of Animal Science, South China Agricultural University, Guangdong Province, Guangzhou 510642, China
| | - Yulong Wei
- College of Animal Science, South China Agricultural University, Guangdong Province, Guangzhou 510642, China
| | - Chang Cui
- College of Animal Science, South China Agricultural University, Guangdong Province, Guangzhou 510642, China
| | - Shihai Zhang
- College of Animal Science, South China Agricultural University, Guangdong Province, Guangzhou 510642, China
- College of Animal Science and National Engineering Research Center for Pig Breeding Industry, South China Agricultural University, Guangzhou, Guangdong Province 510642, China
- Guangdong Laboratory of Modern Agriculture in Lingnan, Guangzhou, Guangdong Province 510642, China
| | - Wutai Guan
- College of Animal Science, South China Agricultural University, Guangdong Province, Guangzhou 510642, China
- College of Animal Science and National Engineering Research Center for Pig Breeding Industry, South China Agricultural University, Guangzhou, Guangdong Province 510642, China
- Guangdong Laboratory of Modern Agriculture in Lingnan, Guangzhou, Guangdong Province 510642, China
| | - Fang Chen
- College of Animal Science, South China Agricultural University, Guangdong Province, Guangzhou 510642, China
- College of Animal Science and National Engineering Research Center for Pig Breeding Industry, South China Agricultural University, Guangzhou, Guangdong Province 510642, China
- Guangdong Laboratory of Modern Agriculture in Lingnan, Guangzhou, Guangdong Province 510642, China
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9
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Dehner LP. The Placenta and Neonatal Encephalopathy with a Focus on Hypoxic-Ischemic Encephalopathy. Fetal Pediatr Pathol 2023; 42:950-971. [PMID: 37766587 DOI: 10.1080/15513815.2023.2261051] [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: 06/30/2023] [Accepted: 09/15/2023] [Indexed: 09/29/2023]
Abstract
Background: Placental examination is important for its diagnostic immediacy to correlate with maternal and/or fetal complications and parturitional difficulties. In a broader context, clinicopathologic studies of the placenta have addressed a range of pathogenetic questions that have led to conclusive and inconclusive results and interpretations. Methods: Recent standardized morphologic criteria and terminology of placental lesions have facilitated the ability to compare findings from studies that have focused on complications and outcomes of pregnancy. This review is an evaluation of recent studies on placental lesions associated with hypoxic-ischemic encephalopathy (HIE). Conclusion: No apparent consensus exists on whether it is fetal inflammation with the release of cytokines or chronic maternal and/or fetal vascular malperfusion is responsible for HIE with a lowering of the threshold for hypoxic ischemia. The counter argument is that HIE occurs solely as an intrapartum event. Additional investigation is necessary.
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Affiliation(s)
- Louis P Dehner
- Lauren V. Ackerman Laboratory of Surgical Pathology, Barnes-Jewish and St. Louis Children's Hospitals, State of Washington University in St. Louis Medical Center, St. Louis, MO, USA
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10
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Herrera CL, Kim MJ, Do QN, Owen DM, Fei B, Twickler DM, Spong CY. The human placenta project: Funded studies, imaging technologies, and future directions. Placenta 2023; 142:27-35. [PMID: 37634371 PMCID: PMC11257151 DOI: 10.1016/j.placenta.2023.08.067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Revised: 08/16/2023] [Accepted: 08/19/2023] [Indexed: 08/29/2023]
Abstract
The placenta plays a critical role in fetal development. It serves as a multi-functional organ that protects and nurtures the fetus during pregnancy. However, despite its importance, the intricacies of placental structure and function in normal and diseased states have remained largely unexplored. Thus, in 2014, the National Institute of Child Health and Human Development launched the Human Placenta Project (HPP). As of May 2023, the HPP has awarded over $101 million in research funds, resulting in 41 funded studies and 459 publications. We conducted a comprehensive review of these studies and publications to identify areas of funded research, advances in those areas, limitations of current research, and continued areas of need. This paper will specifically review the funded studies by the HPP, followed by an in-depth discussion on advances and gaps within placental-focused imaging. We highlight the progress within magnetic reasonance imaging and ultrasound, including development of tools for the assessment of placental function and structure.
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Affiliation(s)
- Christina L Herrera
- Department of Obstetrics and Gynecology, UT Southwestern Medical Center, and Parkland Health Dallas, Texas, USA; Green Center for Reproductive Biology Sciences, UT Southwestern Medical Center, Dallas, TX, USA.
| | - Meredith J Kim
- University of Texas Southwestern Medical School, Dallas, TX, USA
| | - Quyen N Do
- Department of Radiology, UT Southwestern Medical Center, Dallas, TX, USA
| | - David M Owen
- Department of Obstetrics and Gynecology, UT Southwestern Medical Center, and Parkland Health Dallas, Texas, USA; Green Center for Reproductive Biology Sciences, UT Southwestern Medical Center, Dallas, TX, USA
| | - Baowei Fei
- Department of Radiology, UT Southwestern Medical Center, Dallas, TX, USA; Advanced Imaging Research Center, UT Southwestern Medical Center, Dallas, TX, USA; Department of Bioengineering, University of Texas at Dallas, Dallas, TX, USA
| | - Diane M Twickler
- Department of Obstetrics and Gynecology, UT Southwestern Medical Center, and Parkland Health Dallas, Texas, USA; Department of Radiology, UT Southwestern Medical Center, Dallas, TX, USA
| | - Catherine Y Spong
- Department of Obstetrics and Gynecology, UT Southwestern Medical Center, and Parkland Health Dallas, Texas, USA
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11
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Jiang ZD, Wang C, Ping LL, Yin R. Altered maturation in brainstem neural conduction in very premature babies with fetal growth restriction. Pediatr Res 2023; 94:1472-1479. [PMID: 36966269 DOI: 10.1038/s41390-023-02565-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Revised: 01/31/2023] [Accepted: 02/27/2023] [Indexed: 03/27/2023]
Abstract
BACKGROUND Using maximum length sequence brainstem auditory evoked response (MLS BAER) to study brainstem neural conduction and maturation in fetal growth restriction (FGR) babies born very prematurely and assess the effect of FGR on brainstem neural maturation. METHODS MLS BAER was recorded and analyzed at a mean 40 week postmenstrual age in babies born at 27-32 week gestation without other major perinatal conditions or problems. The data were compared between babies with FGR (n = 30) and age-matched babies without FGR (n = 34) to define any differences. RESULTS A notable difference in MLS BAER was found in interpeak intervals between the babies with FGR and those without FGR. The FGR babies manifested significantly shortened I-III interval, moderately prolonged III-V interval, and significantly decreased III-V/I-III interval ratio. The slope of the I-III interval-rate function in FGR babies was moderately decreased, relative to that in the babies without FGR. CONCLUSION FGR babies born very prematurely are associated with accelerated or precocial neural maturation at caudal brainstem regions, but moderately delayed maturation at rostral brainstem regions. The altered brainstem neural maturation is different from previously reported mildly delayed maturation in FGR babies born less prematurely, and may have important implication for neurodevelopmental outcome. IMPACT This first MLS BAER study in FGR found that brainstem neural maturation in very premature FGR babies differed from age-matched non-FGR babies. Neural maturation in very premature FGR babies is accelerated or precocial at caudal brainstem regions but moderately delayed at rostral brainstem regions. The altered maturation is different from previously reported mild delay in brainstem neural maturation in FGR babies born less prematurely. FGR exerts a major and differential effect on brainstem neural maturation in babies born very prematurely. This alteration in very premature FGR babies may have important implication for their neurodevelopment.
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Affiliation(s)
- Ze Dong Jiang
- Division of Neonatology, Children's Hospital of Fudan University, Shanghai, China.
| | - Cui Wang
- Division of Neonatology, Children's Hospital of Fudan University, Shanghai, China
| | - Li Li Ping
- Division of Neonatology, Children's Hospital of Fudan University, Shanghai, China
| | - Rong Yin
- Division of Neonatology, Children's Hospital of Fudan University, Shanghai, China
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12
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Fabres RB, Cardoso DS, Aragón BA, Arruda BP, Martins PP, Ikebara JM, Drobyshevsky A, Kihara AH, de Fraga LS, Netto CA, Takada SH. Consequences of oxygen deprivation on myelination and sex-dependent alterations. Mol Cell Neurosci 2023; 126:103864. [PMID: 37268283 DOI: 10.1016/j.mcn.2023.103864] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Revised: 05/07/2023] [Accepted: 05/25/2023] [Indexed: 06/04/2023] Open
Abstract
Oxygen deprivation is one of the main causes of morbidity and mortality in newborns, occurring with a higher prevalence in preterm infants, reaching 20 % to 50 % mortality in newborns in the perinatal period. When they survive, 25 % exhibit neuropsychological pathologies, such as learning difficulties, epilepsy, and cerebral palsy. White matter injury is one of the main features found in oxygen deprivation injury, which can lead to long-term functional impairments, including cognitive delay and motor deficits. The myelin sheath accounts for much of the white matter in the brain by surrounding axons and enabling the efficient conduction of action potentials. Mature oligodendrocytes, which synthesize and maintain myelination, also comprise a significant proportion of the brain's white matter. In recent years, oligodendrocytes and the myelination process have become potential therapeutic targets to minimize the effects of oxygen deprivation on the central nervous system. Moreover, evidence indicate that neuroinflammation and apoptotic pathways activated during oxygen deprivation may be influenced by sexual dimorphism. To summarize the most recent research about the impact of sexual dimorphism on the neuroinflammatory state and white matter injury after oxygen deprivation, this review presents an overview of the oligodendrocyte lineage development and myelination, the impact of oxygen deprivation and neuroinflammation on oligodendrocytes in neurodevelopmental disorders, and recent reports about sexual dimorphism regarding the neuroinflammation and white matter injury after neonatal oxygen deprivation.
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Affiliation(s)
- Rafael Bandeira Fabres
- Departamento de Bioquímica, Universidade Federal do Rio Grande do Sul (UFRGS), Ramiro Barcelos, 2600, Porto Alegre 90035-003, Brazil
| | - Débora Sterzeck Cardoso
- Neurogenetics Laboratory, Universidade Federal do ABC, Alameda da Universidade, s/n, São Bernardo do Campo 09606-045, Brazil
| | | | - Bruna Petrucelli Arruda
- Neurogenetics Laboratory, Universidade Federal do ABC, Alameda da Universidade, s/n, São Bernardo do Campo 09606-045, Brazil
| | - Pamela Pinheiro Martins
- Neurogenetics Laboratory, Universidade Federal do ABC, Alameda da Universidade, s/n, São Bernardo do Campo 09606-045, Brazil
| | - Juliane Midori Ikebara
- Neurogenetics Laboratory, Universidade Federal do ABC, Alameda da Universidade, s/n, São Bernardo do Campo 09606-045, Brazil
| | | | - Alexandre Hiroaki Kihara
- Neurogenetics Laboratory, Universidade Federal do ABC, Alameda da Universidade, s/n, São Bernardo do Campo 09606-045, Brazil
| | - Luciano Stürmer de Fraga
- Departamento de Fisiologia, Universidade Federal do Rio Grande do Sul (UFRGS), Sarmento Leite, 500, Porto Alegre 90050-170, Brazil
| | - Carlos Alexandre Netto
- Departamento de Bioquímica, Universidade Federal do Rio Grande do Sul (UFRGS), Ramiro Barcelos, 2600, Porto Alegre 90035-003, Brazil
| | - Silvia Honda Takada
- Neurogenetics Laboratory, Universidade Federal do ABC, Alameda da Universidade, s/n, São Bernardo do Campo 09606-045, Brazil.
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13
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Leming MJ, Bron EE, Bruffaerts R, Ou Y, Iglesias JE, Gollub RL, Im H. Challenges of implementing computer-aided diagnostic models for neuroimages in a clinical setting. NPJ Digit Med 2023; 6:129. [PMID: 37443276 DOI: 10.1038/s41746-023-00868-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Accepted: 06/26/2023] [Indexed: 07/15/2023] Open
Abstract
Advances in artificial intelligence have cultivated a strong interest in developing and validating the clinical utilities of computer-aided diagnostic models. Machine learning for diagnostic neuroimaging has often been applied to detect psychological and neurological disorders, typically on small-scale datasets or data collected in a research setting. With the collection and collation of an ever-growing number of public datasets that researchers can freely access, much work has been done in adapting machine learning models to classify these neuroimages by diseases such as Alzheimer's, ADHD, autism, bipolar disorder, and so on. These studies often come with the promise of being implemented clinically, but despite intense interest in this topic in the laboratory, limited progress has been made in clinical implementation. In this review, we analyze challenges specific to the clinical implementation of diagnostic AI models for neuroimaging data, looking at the differences between laboratory and clinical settings, the inherent limitations of diagnostic AI, and the different incentives and skill sets between research institutions, technology companies, and hospitals. These complexities need to be recognized in the translation of diagnostic AI for neuroimaging from the laboratory to the clinic.
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Affiliation(s)
- Matthew J Leming
- Center for Systems Biology, Massachusetts General Hospital, Boston, MA, USA.
- Massachusetts Alzheimer's Disease Research Center, Charlestown, MA, USA.
| | - Esther E Bron
- Department of Radiology and Nuclear Medicine, Erasmus MC, Rotterdam, The Netherlands
| | - Rose Bruffaerts
- Computational Neurology, Experimental Neurobiology Unit (ENU), Department of Biomedical Sciences, University of Antwerp, Antwerp, Belgium
- Biomedical Research Institute, Hasselt University, Diepenbeek, Belgium
| | - Yangming Ou
- Boston Children's Hospital, 300 Longwood Ave, Boston, MA, USA
| | - Juan Eugenio Iglesias
- Center for Medical Image Computing, University College London, London, UK
- Martinos Center for Biomedical Imaging, Harvard Medical School, Boston, MA, USA
- Computer Science and Artificial Intelligence Laboratory, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Randy L Gollub
- Department of Psychiatry, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Hyungsoon Im
- Center for Systems Biology, Massachusetts General Hospital, Boston, MA, USA.
- Massachusetts Alzheimer's Disease Research Center, Charlestown, MA, USA.
- Department of Radiology, Massachusetts General Hospital, Boston, MA, USA.
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14
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DiPiero M, Rodrigues PG, Gromala A, Dean DC. Applications of advanced diffusion MRI in early brain development: a comprehensive review. Brain Struct Funct 2023; 228:367-392. [PMID: 36585970 PMCID: PMC9974794 DOI: 10.1007/s00429-022-02605-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Accepted: 12/21/2022] [Indexed: 01/01/2023]
Abstract
Brain development follows a protracted developmental timeline with foundational processes of neurodevelopment occurring from the third trimester of gestation into the first decade of life. Defining structural maturational patterns of early brain development is a critical step in detecting divergent developmental trajectories associated with neurodevelopmental and psychiatric disorders that arise later in life. While considerable advancements have already been made in diffusion magnetic resonance imaging (dMRI) for pediatric research over the past three decades, the field of neurodevelopment is still in its infancy with remarkable scientific and clinical potential. This comprehensive review evaluates the application, findings, and limitations of advanced dMRI methods beyond diffusion tensor imaging, including diffusion kurtosis imaging (DKI), constrained spherical deconvolution (CSD), neurite orientation dispersion and density imaging (NODDI) and composite hindered and restricted model of diffusion (CHARMED) to quantify the rapid and dynamic changes supporting the underlying microstructural architectural foundations of the brain in early life.
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Affiliation(s)
- Marissa DiPiero
- Department of Neuroscience Training Program, University of Wisconsin-Madison, Madison, WI, 53705, USA
- Waisman Center, University of Wisconsin-Madison, Madison, WI, 53705, USA
| | | | - Alyssa Gromala
- Waisman Center, University of Wisconsin-Madison, Madison, WI, 53705, USA
| | - Douglas C Dean
- Waisman Center, University of Wisconsin-Madison, Madison, WI, 53705, USA.
- Department of Pediatrics, University of Wisconsin-Madison, Madison, WI, 53705, USA.
- Department of Medical Physics, University of Wisconsin-Madison, Madison, WI, 53705, USA.
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15
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Huang J, Shahedi M, Do QN, Xi Y, Lewis MA, Herrera CL, Owen D, Spong CY, Madhuranthakam AJ, Twickler DM, Fei B. Topography-based feature extraction of the human placenta from prenatal MR images. PROCEEDINGS OF SPIE--THE INTERNATIONAL SOCIETY FOR OPTICAL ENGINEERING 2023; 12464:1246420. [PMID: 38501056 PMCID: PMC10947417 DOI: 10.1117/12.2653663] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/20/2024]
Abstract
Magnetic resonance imaging (MRI) has gained popularity in the field of prenatal imaging due to the ability to provide high quality images of soft tissue. In this paper, we presented a novel method for extracting different textural and morphological features of the placenta from MRI volumes using topographical mapping. We proposed polar and planar topographical mapping methods to produce common placental features from a unique point of observation. The features extracted from the images included the entire placenta surface, as well as the thickness, intensity, and entropy maps displayed in a convenient two-dimensional format. The topography-based images may be useful for clinical placental assessments as well as computer-assisted diagnosis, and prediction of potential pregnancy complications.
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Affiliation(s)
- James Huang
- Department of Bioengineering, The University of Texas at Dallas, TX
- Center for Imaging and Surgical Innovation, The University of Texas at Dallas, TX
| | - Maysam Shahedi
- Department of Bioengineering, The University of Texas at Dallas, TX
- Center for Imaging and Surgical Innovation, The University of Texas at Dallas, TX
| | - Quyen N. Do
- Department of Radiology, The University of Texas Southwestern Medical Center, Dallas, TX
| | - Yin Xi
- Department of Radiology, The University of Texas Southwestern Medical Center, Dallas, TX
- Department of Population and Data Sciences, The University of Texas Southwestern Medical Center, Dallas, TX
| | - Matthew A. Lewis
- Department of Radiology, The University of Texas Southwestern Medical Center, Dallas, TX
| | - Christina L. Herrera
- Department of Obstetrics and Gynecology, The University of Texas Southwestern Medical Center, Dallas, TX
| | - David Owen
- Department of Obstetrics and Gynecology, The University of Texas Southwestern Medical Center, Dallas, TX
| | - Catherine Y. Spong
- Department of Obstetrics and Gynecology, The University of Texas Southwestern Medical Center, Dallas, TX
| | | | - Diane M. Twickler
- Department of Radiology, The University of Texas Southwestern Medical Center, Dallas, TX
- Department of Obstetrics and Gynecology, The University of Texas Southwestern Medical Center, Dallas, TX
| | - Baowei Fei
- Department of Bioengineering, The University of Texas at Dallas, TX
- Center for Imaging and Surgical Innovation, The University of Texas at Dallas, TX
- Department of Radiology, The University of Texas Southwestern Medical Center, Dallas, TX
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16
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Dexmedetomidine Pre-Treatment of Neonatal Rats Prevents Sevoflurane-Induced Deficits in Learning and Memory in the Adult Animals. Biomedicines 2023; 11:biomedicines11020391. [PMID: 36830927 PMCID: PMC9953733 DOI: 10.3390/biomedicines11020391] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Revised: 01/25/2023] [Accepted: 01/26/2023] [Indexed: 02/01/2023] Open
Abstract
Anesthetics have been shown to cause cytotoxicity, cell death, affect neuronal growth and connectivity in animal models; however, their effects on learning and memory remain to be fully defined. Here, we examined the effects of the inhalation anesthetic sevoflurane (SEV)-both in vivo by examining learning and memory in freely behaving animals, and in vitro using cultured neurons to assess its impact on viability, mitochondrial structure, and function. We demonstrate here that neonatal exposure to sub-clinically used concentrations of SEV results in significant, albeit subtle and previously unreported, learning and memory deficits in adult animals. These deficits involve neuronal cell death, as observed in cell culture, and are likely mediated through perturbed mitochondrial structure and function. Parenthetically, both behavioural deficits and cell death were prevented when the animals and cultured neurons were pre-treated with the anesthetic adjuvant Dexmedetomidine (DEX). Taken together, our data provide direct evidence for sevoflurane-induced cytotoxic effects at the neuronal level while perturbing learning and memory at the behavioural level. In addition, our data underscore the importance of adjuvant agents such as DEX that could potentially counter the harmful effects of commonly used anesthetic agents for better clinical outcomes.
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17
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Chen G, Li F, Du J. Change of gut microbiome structure in preterm infants with hypoxic ischemic encephalopathy induced by apnea. Pediatr Neonatol 2023:S1875-9572(23)00022-0. [PMID: 36842907 DOI: 10.1016/j.pedneo.2022.11.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Revised: 10/18/2022] [Accepted: 11/21/2022] [Indexed: 01/26/2023] Open
Abstract
BACKGROUND Since a high incidence of mortality and morbidity is induced by preterm birth, it is important to understand how hypoxic ischemic encephalopathy (HIE) in preterm infants alters gut microbiota development. METHODS We analyzed 89 stools from 30 term newborns (NNG), 30 preterm infants without apnea (PG) and 29 preterm infants with definite diagnosis of apnea (PAG) by 16S rRNA gene sequencing in this study. RESULTS The data showed that species richness and diversity in PG and PAG were significantly lower compared with NNG. This study investigated the difference in bacteria and relative abundance between NNG, PG and PAG. The abundance of Klebsiella and Streptococcus strains were markedly increased, while Clostridium was significantly decreased in PAG compared with PG. The most notable exceptions included Klebsiella pneumoniae and Escherichia coli, which were markedly increased in PG and PAG, and these provide the main bacterial source of dopamine and serotonin production. This study also revealed that Lactobacillus and Bifidobacterium were markedly increased in PG and PAG, and these are the main source of GABA production for bacteria. CONCLUSION The present study confirmed that apnea had a uniform effect on species richness and diversity. However, it cannot be established whether the abundance and difference of these bacterial genera and species directly affect the occurrence and development of preterm infants with HIE by secreting intestinal neurotransmitters.
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Affiliation(s)
- Guang Chen
- Department of Basic Medical Sciences, Taizhou University, No 1139 Shifu Road, Jiaojiang District, Taizhou 318000, China
| | - Fengdan Li
- Nursing Department, Xiang'An Hospital, Xiamen University, Xiamen, 361005, China
| | - Jiwei Du
- Nursing Department, Xiang'An Hospital, Xiamen University, Xiamen, 361005, China.
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18
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Wakefield C, Cao M, Burns P, Fecteau G, Desrochers A, Frasch MG. Factors Determining the Success of the Chronically Instrumented Non-anesthetized Fetal Sheep Model of Human Development: A Retrospective Cohort Study. Cureus 2022; 14:e32632. [PMID: 36660509 PMCID: PMC9845535 DOI: 10.7759/cureus.32632] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/16/2022] [Indexed: 12/23/2022] Open
Abstract
Background The chronically instrumented non-anesthetized fetal sheep (CINAFS) model has been a mainstay of human fetal development research for the past 60 years. As a large "two for one" animal model, involving the instrumentation of the ewe and her fetus, the model poses challenges to implement de novo and maintain overtime at the highest standards of operating procedures to ensure ongoing performance. A common yet conventionally underreported issue researchers face is a high rate of animal loss. Here, we investigate what determines the success of the CINAFS model of human development. Methods We conducted a retrospective cohort analysis consisting of 82 experiments spanning the course of six years. Our team identified 10 variables that we anticipated were likely to influence the experimental outcome, such as the time of year, animal size, and surgical complexity. To evaluate the role of each variable in contributing to the success of the model, a binary logit regression analysis with a Fisher scoring optimization was fit to the data (SAS, V9 engine, release 3.8, SAS Institute, Cary, NC, USA). A higher predictive probability indicates a larger impact by the given variable on the outcome of the experiment. A Wald chi-squared analysis was run on the data to control for confounders and determine significance. Results The single variable identified in this study as determining the success of experiment outcomes using the CINAFS model is the experience level of the team. Conclusion The CINAFS model offers enormous potential to further our understanding of human fetal development and create interventional technologies related to fetal health. However, to improve experimental outcomes using the CINAFS model, stronger communication and training are needed. We discuss the implications of our findings for the successful implementation of this challenging yet scientifically advantageous animal model of human physiology.
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Affiliation(s)
- Colin Wakefield
- Department of Obstetrics and Gynecology, Drexel College of Medicine, Philadelphia, USA
| | - Mingju Cao
- Department of Obstetrics and Gynecology, Centre Hospitalier Universitaire (CHU) Sainte-Justine Research Center, Montreal, CAN
| | - Patrick Burns
- Department of Clinical Sciences, University of Montreal School of Veterinary Medicine, Saint-Hyacinthe, CAN
| | - Gilles Fecteau
- Department of Clinical Sciences, University of Montreal School of Veterinary Medicine, Saint-Hyacinthe, CAN
| | - Andre Desrochers
- Department of Clinical Sciences, University of Montreal School of Veterinary Medicine, Saint-Hyacinthe, CAN
| | - Martin G Frasch
- Department of Obstetrics and Gynecology, Center on Human Development and Disability (CHDD), University of Washington School of Medicine, Seattle, USA
- Department of Obstetrics and Gynecology, Centre Hospitalier Universitaire (CHU) Sainte-Justine Research Center, Montreal, CAN
- Department of Clinical Sciences and Centre de Recherche en Reproduction Animale (CRRA), University of Montreal School of Veterinary Medicine, Saint-Hyacinthe, CAN
- Department of Obstetrics and Gynecology and Department of Neurosciences, University of Montreal Health Centre (CHUM), Montreal, CAN
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19
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Interventions for the prevention or treatment of epidural-related maternal fever: a systematic review and meta-analysis. Br J Anaesth 2022; 129:567-580. [PMID: 35934529 PMCID: PMC9575042 DOI: 10.1016/j.bja.2022.06.022] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Revised: 05/18/2022] [Accepted: 06/16/2022] [Indexed: 11/28/2022] Open
Abstract
Background Epidural-related maternal fever in women in labour has consequences for the mother and neonate. There has been no systematic review of preventive strategies. Methods RCTs evaluating methods of preventing or treating epidural-related maternal fever in women in active labour were eligible. We searched MEDLINE, EMBASE, CINAHL, Web of Science, CENTRAL, and grey literature sources were searched from inception to April 2021. Two review authors independently undertook study selection. Data extraction and quality assessment was performed by a single author and checked by a second. The Cochrane Risk of Bias 2 tool was used. Meta-analyses for the primary outcome, incidence of intrapartum fever, were performed using the DerSimonian and Laird random effects model to produce summary risk ratios (RRs) with 95% confidence intervals (95% CIs). Results Forty-two records, representing 34 studies, were included. Methods of reduced dose epidural reduced the incidence of intrapartum fever, but this was not statistically significant when six trials at high risk of bias were removed (seven trials; 857 participants; RR=0.83; 95% CI, 0.41–1.67). Alternative methods of analgesia and high-dose prophylactic systemic steroids reduced the risk of intrapartum fever compared with epidural analgesia. Prophylactic paracetamol was not effective. Conclusions There is no clear evidence to support the use of any individual preventative or therapeutic intervention for epidural-related maternal fever. Further research should focus on understanding the mechanism of fever development to enable RCTs of potential interventions to reduce the incidence of intrapartum fever development and the subsequent disease burden felt by the neonate. Clinical trial registration CRD42021246929.
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20
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Osborne B, Oltean I, Sucha E, Mitsakakis N, Barrowman N, Bainbridge S, El Demellawy D. Association of distinct features of villitis of unknown etiology histopathology and fetal growth restriction diagnosis in a retrospective cohort from Eastern Ontario. Placenta 2022; 128:83-90. [DOI: 10.1016/j.placenta.2022.08.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Accepted: 08/24/2022] [Indexed: 11/29/2022]
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21
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Sensory-based interventions in the NICU: systematic review of effects on preterm brain development. Pediatr Res 2022; 92:47-60. [PMID: 34508227 DOI: 10.1038/s41390-021-01718-w] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Revised: 07/12/2021] [Accepted: 08/17/2021] [Indexed: 11/08/2022]
Abstract
BACKGROUND Infants born preterm are known to be at risk for abnormal brain development and adverse neurobehavioral outcomes. To improve early neurodevelopment, several non-pharmacological interventions have been developed and implemented in the neonatal intensive care unit (NICU). Sensory-based interventions seem to improve short-term neurodevelopmental outcomes in the inherently stressful NICU environment. However, how this type of intervention affects brain development in the preterm population remains unclear. METHODS A systematic review of the literature was conducted for published studies in the past 20 years reporting the effects of early, non-pharmacological, sensory-based interventions on the neonatal brain after preterm birth. RESULTS Twelve randomized controlled trials (RCT) reporting short-term effects of auditory, tactile, and multisensory interventions were included after the screening of 1202 articles. Large heterogeneity was identified among studies in relation to both types of intervention and outcomes. Three areas of focus for sensory interventions were identified: auditory-based, tactile-based, and multisensory interventions. CONCLUSIONS Diversity in interventions and outcome measures challenges the possibility to perform an integrative synthesis of results and to translate these for evidence-based clinical practice. This review identifies gaps in the literature and methodological challenges for the implementation of RCTs of sensory interventions in the NICU. IMPACT This paper represents the first systematic review to investigate the effect of non-pharmacological, sensory-based interventions in the NICU on neonatal brain development. Although reviewed RCTs present evidence on the impact of such interventions on the neonatal brain following preterm birth, it is not yet possible to formulate clear guidelines for clinical practice. This review integrates existing literature on the effect of sensory-based interventions on the brain after preterm birth and identifies methodological challenges for the conduction of high-quality RCTs.
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22
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Wortinger LA, Engen K, Barth C, Andreassen OA, Nordbø Jørgensen K, Agartz I. Asphyxia at birth affects brain structure in patients on the schizophrenia-bipolar disorder spectrum and healthy participants. Psychol Med 2022; 52:1050-1059. [PMID: 32772969 PMCID: PMC9069351 DOI: 10.1017/s0033291720002779] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Revised: 06/05/2020] [Accepted: 07/16/2020] [Indexed: 12/24/2022]
Abstract
BACKGROUND Uncertainty exists about what causes brain structure alterations associated with schizophrenia (SZ) and bipolar disorder (BD). Whether a history of asphyxia-related obstetric complication (ASP) - a common but harmful condition for neural tissue - contributes to variations in adult brain structure is unclear. We investigated ASP and its relationship to intracranial (ICV), global brain volumes and regional cortical and subcortical structures. METHODS A total of 311 patients on the SZ - BD spectrum and 218 healthy control (HC) participants underwent structural magnetic resonance imaging. They were evaluated for ASP using prospective information obtained from the Medical Birth Registry of Norway. RESULTS In all groups, ASP was related to smaller ICV, total brain, white and gray matter volumes and total surface area, but not to cortical thickness. Smaller cortical surface areas were found across frontal, parietal, occipital, temporal and insular regions. Smaller hippocampal, amygdala, thalamus, caudate and putamen volumes were reported for all ASP subgroups. ASP effects did not survive ICV correction, except in the caudate, which remained significantly smaller in both patient ASP subgroups, but not in the HC. CONCLUSIONS Since ASP was associated with smaller brain volumes in all groups, the genetic risk of developing a severe mental illness, alone, cannot easily explain the smaller ICV. Only the smaller caudate volumes of ASP patients specifically suggest that injury from ASP can be related to disease development. Our findings give support for the ICV as a marker of aberrant neurodevelopment and ASP in the etiology of brain development in BD and SZ.
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Affiliation(s)
- Laura Anne Wortinger
- Department of Psychiatric Research, Diakonhjemmet Hospital, Oslo, Norway
- NORMENT, Institute of Clinical Medicine, University of Oslo, Oslo, Norway
| | - Kristine Engen
- Department of Psychiatric Research, Diakonhjemmet Hospital, Oslo, Norway
- NORMENT, Institute of Clinical Medicine, University of Oslo, Oslo, Norway
| | - Claudia Barth
- NORMENT, Institute of Clinical Medicine, University of Oslo, Oslo, Norway
| | - Ole A. Andreassen
- NORMENT, Institute of Clinical Medicine, University of Oslo, Oslo, Norway
- Division of Mental Health and Addiction, NORMENT, Oslo University Hospital, Oslo, Norway
| | - Kjetil Nordbø Jørgensen
- Department of Psychiatric Research, Diakonhjemmet Hospital, Oslo, Norway
- NORMENT, Institute of Clinical Medicine, University of Oslo, Oslo, Norway
| | - Ingrid Agartz
- Department of Psychiatric Research, Diakonhjemmet Hospital, Oslo, Norway
- NORMENT, Institute of Clinical Medicine, University of Oslo, Oslo, Norway
- Department of Clinical Neuroscience, Centre for Psychiatric Research, Karolinska Institute, Stockholm, Sweden
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23
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Remote and at-home data collection: Considerations for the NIH HEALthy Brain and Cognitive Development (HBCD) study. Dev Cogn Neurosci 2022; 54:101059. [PMID: 35033972 PMCID: PMC8762360 DOI: 10.1016/j.dcn.2022.101059] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Revised: 12/11/2021] [Accepted: 01/05/2022] [Indexed: 11/24/2022] Open
Abstract
The NIH HEALthy Brain and Cognitive Development (HBCD) study aims to characterize the impact of in utero exposure to substances, and related environmental exposures on child neurodevelopment and health outcomes. A key focus of HBCD is opioid exposure, which has disproportionately affected rural areas. While most opioid use and neonatal abstinence syndrome has been reported outside of large cities, rural communities are often under-represented in large-scale clinical research studies that involve neuroimaging, in-person assessments, or bio-specimen collections. Thus, there exists a likely mismatch between the communities that are the focus of HBCD and those that can participate. Even geographically proximal participants, however, are likely to bias towards higher socioeconomic status given the anticipated study burden and visit frequency. Wearables, ‘nearables’, and other consumer biosensors, however, are increasingly capable of collecting continuous physiologic and environmental exposure data, facilitating remote assessment. We review the potential of these technologies for remote in situ data collection, and the ability to engage rural, affected communities. While not necessarily a replacement, these technologies offer a compelling complement to traditional ‘gold standard’ lab-based methods, with significant potential to expand the study’s reach and importance.
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24
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Zhu G, Zhou S, Xu Y, Gao R, Li H, Su W, Han G, Wang R. Mendelian randomization study on the causal effects of COVID-19 on childhood intelligence. J Med Virol 2022; 94:3233-3239. [PMID: 35322423 PMCID: PMC9088592 DOI: 10.1002/jmv.27736] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Revised: 03/17/2022] [Accepted: 03/21/2022] [Indexed: 11/17/2022]
Abstract
Although individuals with coronavirus disease 2019 (COVID‐19) are known to be at increased risk for other conditions resulting from pathogenic changes (including metaplastic or anaplastic) in the lungs and other organs and organ systems, it is still unknown whether COVID‐19 affects childhood intelligence. The present two‐sample Mendelian randomization study aims to identify the genetic causal link between COVID‐19 and childhood intelligence. Four COVID‐19 genetic instrumental variants (IVs) were chosen from the largest genome‐wide association studies (GWAS) for COVID‐19 (hospitalized vs. population) (6406 cases and 902 088 controls of European ancestry). The largest childhood intelligence GWAS (n = 12 441 individuals of European ancestry) was used to evaluate the effect of the identified COVID‐19‐associated genetic IVs on childhood intelligence. We found that as the genetic susceptibility to COVID‐19 increased, childhood intelligence followed a decreasing trend, according to mr_egger (β = −0.156; p = 0.601; odds ratio [OR] = 0.856; 95% confidence interval [CI]: 0.522–1.405), simple mode (β = −0.126; p = 0.240; OR = 0.882; 95% CI: 0.745–1.044), and weighted mode (β = −0.121; p = 0.226; OR = 0.886; 95% CI: 0.758–1.036) analyses. This trend was further demonstrated by the weighted median (β = −0.134; p = 0.031; OR = 0.875; 95% CI: 0.774–0.988) and the inverse variance weighted (β = −0.152; p = 0.004; OR = 0.859; 95% CI: 0.776–0.952). Our analysis suggests a causal link between genetically increased COVID‐19 and decreased childhood intelligence. Thus, COVID‐19 may be a risk factor for declines in childhood intelligence.
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Affiliation(s)
- Gaizhi Zhu
- Beijing Institute of Brain Disorders, Laboratory of Brain Disorders, Ministry of Science and Technology, Collaborative Innovation Center for Brain DisordersCapital Medical UniversityBeijingChina
| | - Shan Zhou
- Beijing Institute of Brain Disorders, Laboratory of Brain Disorders, Ministry of Science and Technology, Collaborative Innovation Center for Brain DisordersCapital Medical UniversityBeijingChina
| | - Yaqi Xu
- Beijing Institute of Brain Disorders, Laboratory of Brain Disorders, Ministry of Science and Technology, Collaborative Innovation Center for Brain DisordersCapital Medical UniversityBeijingChina
| | - Ran Gao
- Beijing Institute of Brain Disorders, Laboratory of Brain Disorders, Ministry of Science and Technology, Collaborative Innovation Center for Brain DisordersCapital Medical UniversityBeijingChina
| | - Huan Li
- Beijing Institute of Brain Disorders, Laboratory of Brain Disorders, Ministry of Science and Technology, Collaborative Innovation Center for Brain DisordersCapital Medical UniversityBeijingChina
| | - Wenting Su
- Beijing Institute of Brain Disorders, Laboratory of Brain Disorders, Ministry of Science and Technology, Collaborative Innovation Center for Brain DisordersCapital Medical UniversityBeijingChina
| | - Gencheng Han
- Beijing Institute of Basic Medical SciencesBeijingChina
| | - Renxi Wang
- Beijing Institute of Brain Disorders, Laboratory of Brain Disorders, Ministry of Science and Technology, Collaborative Innovation Center for Brain DisordersCapital Medical UniversityBeijingChina
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Joglekar R, Cauley M, Lipsich T, Corcoran DL, Patisaul HB, Levin ED, Meyer JN, McCarthy MM, Murphy SK. Developmental nicotine exposure and masculinization of the rat preoptic area. Neurotoxicology 2022; 89:41-54. [PMID: 35026373 PMCID: PMC8917982 DOI: 10.1016/j.neuro.2022.01.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2021] [Revised: 12/22/2021] [Accepted: 01/06/2022] [Indexed: 11/24/2022]
Abstract
Nicotine is a neuroteratogenic component of tobacco smoke, e-cigarettes, and other products and can exert sex-specific effects in the developing brain, likely mediated through sex hormones. Estradiol modulates expression of nicotinic acetylcholine receptors in rats, and plays critical roles in neurodevelopmental processes, including sexual differentiation of the brain. Here, we examined the effects of developmental nicotine exposure on the sexual differentiation of the preoptic area (POA), a brain region that normally displays robust structural sexual dimorphisms and controls adult mating behavior in rodents. Using a rat model of gestational exposure, developing pups were exposed to nicotine (2 mg/kg/day) via maternal osmotic minipump (subcutaneously, sc) throughout the critical window for brain sexual differentiation. At postnatal day (PND) 4, a subset of offspring was analyzed for epigenetic effects in the POA. At PND40, all offspring were gonadectomized, implanted with a testosterone-releasing capsule (sc), and assessed for male sexual behavior at PND60. Following sexual behavior assessment, the area of the sexually dimorphic nucleus of the POA (SDN-POA) was measured using immunofluorescent staining techniques. In adults, normal sex differences in male sexual behavior and in the SDN-POA area were eliminated in nicotine-treated animals. Using novel analytical approaches to evaluate overall masculinization of the adult POA, we identified significant masculinization of the nicotine-treated female POA. In neonates (PND4), nicotine exposure induced trending alterations in methylation-dependent masculinizing gene expression and DNA methylation levels at sexually-dimorphic differentially methylated regions, suggesting that developmental nicotine exposure is capable of triggering masculinization of the rat POA via epigenetic mechanisms.
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Affiliation(s)
- Rashmi Joglekar
- Duke University Nicholas School of the Environment, Durham, NC 27708 USA
| | - Marty Cauley
- Duke University Medical Center, Department of Psychiatry and Behavioral Sciences, Durham, NC 27708 USA
| | - Taylor Lipsich
- Duke University Medical Center, Department of Obstetrics & Gynecology, Durham, NC 27708 USA
| | - David L. Corcoran
- Duke Center for Genomic and Computational Biology, Durham, NC 27708 USA
| | - Heather B. Patisaul
- North Carolina State University, Department of Biological Sciences, Raleigh, NC 27695 USA
| | - Edward D. Levin
- Duke University Medical Center, Department of Psychiatry and Behavioral Sciences, Durham, NC 27708 USA
| | - Joel N. Meyer
- Duke University Nicholas School of the Environment, Durham, NC 27708 USA
| | - Margaret M. McCarthy
- University of Maryland School of Medicine, Department of Pharmacology, Baltimore, MD 21201 USA
| | - Susan K. Murphy
- Duke University Medical Center, Department of Obstetrics & Gynecology, Durham, NC 27708 USA
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de Groot E, Bik A, Sam C, Wang X, Shellhaas R, Austin T, Tataranno M, Benders M, van den Hoogen A, Dudink J. Creating an optimal observational sleep stage classification system for very and extremely preterm infants. Sleep Med 2022; 90:167-175. [DOI: 10.1016/j.sleep.2022.01.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Revised: 01/18/2022] [Accepted: 01/22/2022] [Indexed: 10/19/2022]
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27
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Yarnykh VL, Korostyshevskaya AM, Savelov AA, Isaeva YO, Gornostaeva AM, Tulupov AA, Sagdeev RZ. Macromolecular proton fraction mapping in magnetic resonance imaging: physicochemical principles and biomedical applications. Russ Chem Bull 2022. [DOI: 10.1007/s11172-021-3343-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Muk T, Stensballe A, Dmytriyeva O, Brunse A, Jiang PP, Thymann T, Sangild PT, Pankratova S. Differential Brain and Cerebrospinal Fluid Proteomic Responses to Acute Prenatal Endotoxin Exposure. Mol Neurobiol 2022; 59:2204-2218. [PMID: 35064541 DOI: 10.1007/s12035-022-02753-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Accepted: 01/17/2022] [Indexed: 12/12/2022]
Abstract
Chorioamnionitis (CA) is a risk factor for preterm birth and is associated with neurodevelopmental delay and cognitive disorders. Prenatal inflammation-induced brain injury may resolve during the immediate postnatal period when rapid brain remodeling occurs. Cerebrospinal fluid (CSF) collected at birth may be a critical source of predictive biomarkers. Using pigs as a model of preterm infants exposed to CA, we hypothesized that prenatal lipopolysaccharide (LPS) exposure induces proteome changes in the CSF and brain at birth and postnatally. Fetal piglets (103 days gestation of full-term at 117 days) were administered intra-amniotic (IA) lipopolysaccharide (LPS) 3 days before preterm delivery by caesarian section. CSF and brain tissue were collected on postnatal Days 1 and 5 (P1 and P5). CSF and hippocampal proteins were profiled by LC-MS-based quantitative proteomics. Neuroinflammatory responses in the cerebral cortex, periventricular white matter and hippocampus were evaluated by immunohistochemistry, and gene expression was evaluated by qPCR. Pigs exposed to LPS in utero showed changes in CSF protein levels at birth but not at P5. Complement protein C3, hemopexin, vasoactive intestinal peptide, carboxypeptidase N subunit 2, ITIH1, and plasminogen expression were upregulated in the CSF, while proteins associated with axon growth and synaptic functions (FGFR1, BASP1, HSPD1, UBER2N, and RCN2), adhesion (talin1), and neuronal survival (Atox1) were downregulated. Microglia, but not astrocytes, were activated by LPS at P5 in the hippocampus but not in other brain regions. At this time, marginal increases in complement protein C3, LBP, HIF1a, Basp1, Minpp1, and FGFR1 transcription indicated hippocampal proinflammatory responses. In conclusion, few days exposure to endotoxin prenatally induce proteome changes in the CSF and brain at birth, but most changes resolve a few days later. The developing hippocampus has high neuronal plasticity in response to perinatal inflammation. Changes in CSF protein expression at birth may predict later structural brain damage in preterm infants exposed to variable types and durations of CA-related inflammation in utero.
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Affiliation(s)
- Tik Muk
- Section of Comparative Pediatrics and Nutrition, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Allan Stensballe
- Department of Health Science and Technology, Aalborg University, Aalborg, Denmark
| | - Oksana Dmytriyeva
- Faculty of Health and Medical Sciences, Novo Nordisk Foundation Center for Basic Metabolic Research, University of Copenhagen, Copenhagen, Denmark
| | - Anders Brunse
- Section of Comparative Pediatrics and Nutrition, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Ping-Ping Jiang
- Section of Comparative Pediatrics and Nutrition, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Thomas Thymann
- Section of Comparative Pediatrics and Nutrition, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Per Torp Sangild
- Section of Comparative Pediatrics and Nutrition, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.,Department of Pediatrics and Adolescent Medicine, Rigshospitalet, Copenhagen, Denmark.,Department of Paediatrics, Odense University Hospital, Odense, Denmark
| | - Stanislava Pankratova
- Section of Comparative Pediatrics and Nutrition, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark. .,Comparative Pediatrics and Nutrition, Department of Veterinary and Animal Sciences, University of Copenhagen, 1870, Frederiksberg C, Denmark.
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29
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Ståhlberg T, Upadhyaya S, Polo-Kantola P, Khanal P, Luntamo T, Hinkka-Yli-Salomäki S, Sourander A. Associations Between Delivery Modes, Birth Outcomes and Offspring Anxiety Disorders in a Population-Based Birth Cohort of Children and Adolescents. Front Psychiatry 2022; 13:917299. [PMID: 35911234 PMCID: PMC9326080 DOI: 10.3389/fpsyt.2022.917299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Accepted: 06/06/2022] [Indexed: 11/13/2022] Open
Abstract
OBJECTIVE Mode of delivery and well-being markers for newborn infants have been associated with later psychiatric problems in children and adolescents. However, only few studies have examined the association between birth outcomes and anxiety disorders and the results have been contradictory. METHODS This study was a Finnish population-based register study, which comprised 22,181 children and adolescents with anxiety disorders and 74,726 controls. Three national registers were used to collect the data on exposures, confounders and outcomes. Mode of delivery, the 1-min Apgar score, umbilical artery pH and neonatal monitoring were studied as exposure variables for anxiety disorders and for specific anxiety disorders. Conditional logistic regression was used to examine these associations. RESULTS Unplanned and planned cesarean sections increased the odds for anxiety disorders in children and adolescents (adjusted OR 1.08, 95% CI 1.02-1.15 and aOR 1.12, 95% CI 1.05-1.19, respectively). After an additional adjustment for maternal diagnoses, unplanned cesarean sections remained statistically significant (aOR 1.11, 95% CI 1.04-1.18). For specific anxiety disorders, planned cesarean sections and the need for neonatal monitoring increased the odds for specific phobia (aOR 1.21, 95% CI 1.01-1.44 and aOR 1.28, 95% CI 1.07-1.52, respectively). CONCLUSIONS Birth by cesarean section increased the odds for later anxiety disorders in children and adolescents and unplanned cesarean sections showed an independent association. Further studies are needed to examine the mechanisms behind these associations.
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Affiliation(s)
- Tiia Ståhlberg
- Research Center for Child Psychiatry, INVEST Flagship, University of Turku, Turku, Finland
| | - Subina Upadhyaya
- Research Center for Child Psychiatry, INVEST Flagship, University of Turku, Turku, Finland
| | - Päivi Polo-Kantola
- Department of Obstetrics and Gynecology, Turku University Hospital and University of Turku, Turku, Finland
| | - Prakash Khanal
- Research Center for Child Psychiatry, INVEST Flagship, University of Turku, Turku, Finland
| | - Terhi Luntamo
- Research Center for Child Psychiatry, INVEST Flagship, University of Turku, Turku, Finland.,Department of Child Psychiatry, Turku University Hospital, Turku, Finland
| | | | - Andre Sourander
- Research Center for Child Psychiatry, INVEST Flagship, University of Turku, Turku, Finland.,Department of Child Psychiatry, Turku University Hospital, Turku, Finland
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30
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Olutoye OA, Style C, Menchaca A. Neurocognitive Effects of Fetal Exposure to Anesthesia. Anesthesiol Clin 2021; 39:851-869. [PMID: 34776113 DOI: 10.1016/j.anclin.2021.08.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Surgery during pregnancy occurs when maternal or fetal needs outweigh the status quo, yet much uncertainty remains regarding the effects of anesthesia and surgery on fetal neurodevelopment. This article will review common maternal and fetal indications for invasive procedures, along with contemporary research on fetal neurodevelopment following anesthesia and surgery, focusing on future areas of investigation.
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Affiliation(s)
- Olutoyin A Olutoye
- Department of Anesthesiology, Perioperative and Pain Medicine, Texas Children's Hospital, Baylor College of Medicine, 6621 Fannin Street, Suite A-3300, Houston, TX 77030, USA.
| | - Candace Style
- Abigail Wexner Research Institute, Center for Regenerative Medicine, Nationwide Children's Hospital, 575 Children's Crossroad, Columbus, OH 43205, USA
| | - Alicia Menchaca
- Abigail Wexner Research Institute, Center for Regenerative Medicine, Nationwide Children's Hospital, 575 Children's Crossroad, Columbus, OH 43205, USA
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Alpha lipoic acid ameliorates detrimental effects of maternal lipopolysaccharides exposure on prefrontal white matter in adult male offspring rats. J Chem Neuroanat 2021; 118:102038. [PMID: 34610418 DOI: 10.1016/j.jchemneu.2021.102038] [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: 08/07/2021] [Revised: 09/30/2021] [Accepted: 09/30/2021] [Indexed: 11/21/2022]
Abstract
BACKGROUND Activation of the maternal immune system by lipopolysaccharide (LPS) increases the production of proinflammatory cytokines, free radicals, and reactive oxygen species (ROS), all of which play a significant role in the pathogenesis of many offspring neurodevelopmental disorders. Alpha Lipoic Acid (ALA) is a natural compound that has anti-inflammatory and antioxidant properties. This study was performed to assess the effect of prenatal exposure to LPS on the prefrontal white matter of rat offspring and evaluate the potential protective effects of ALA co-administration during pregnancy. METHODS Pregnant Wistar rats were randomly divided into six groups (n = 6 each group): (1) control, (2) received LPS (100 μg/kg, intraperitoneally (IP) on gestational day 9.5 (GD 9.5), (3) received ALA (20 mg/kg) from GD1 to GD11, (4) LPS+ALA received LPS on GD9.5 and ALA from GD1 to GD11, (5 and 6) received LPS and ALA vehicle respectively. In each group, 21-day old male offspring (2 male pups from each mother) was harvested, and then their prefrontal white matter was separated and prepared for the ultrastructural, stereological, and molecular assays. RESULTS In utero exposure to LPS led to a significant decrease in nerve cell counts, ultrastructural alterations in myelinated axons, and abnormal changes in genes expression of Sox10,Olig1,yrf,Wnt in the prefrontal of the rat offspring. Co-administration of ALA resulted in amelioration of those abnormal changes in the LPS rat offspring. CONCLUSION The findings of our preclinical study, explore that prenatal ALA treatment efficiently protects the nervous system against LPS induced abnormal changes in the offspring.
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Vassoler FM, Wimmer ME. Consequences of Parental Opioid Exposure on Neurophysiology, Behavior, and Health in the Next Generations. Cold Spring Harb Perspect Med 2021; 11:a040436. [PMID: 32601130 PMCID: PMC8485740 DOI: 10.1101/cshperspect.a040436] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Substance abuse and the ongoing opioid epidemic represents a large societal burden. This review will consider the long-term impact of opioid exposure on future generations. Prenatal, perinatal, and preconception exposure are reviewed with discussion of both maternal and paternal influences. Opioid exposure can have long-lasting effects on reproductive function, gametogenesis, and germline epigenetic programming, which can influence embryogenesis and alter the developmental trajectory of progeny. The potential mechanisms by which preconception maternal and paternal opioid exposure produce deleterious consequences on the health, behavior, and physiology of offspring that have been identified by clinical and animal studies will be discussed. The timing, nature, dosing, and duration of prenatal opioid exposure combined with other important environmental considerations influence the extent to which these manipulations affect parents and their progeny. Epigenetic inheritance refers to the transmission of environmental insults across generations via mechanisms independent of the DNA sequence. This topic will be further explored in the context of prenatal, perinatal, and preconception opioid exposure for both the maternal and paternal lineage.
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Affiliation(s)
- Fair M Vassoler
- Tufts University, Cummings School of Veterinary Medicine, Grafton, Massachusetts 01536, USA
| | - Mathieu E Wimmer
- Department of Psychology and Program in Neuroscience, Temple University, Philadelphia, Pennsylvania 19122, USA
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Avian A, Mattersberger C, Schober L, Martensen J, Wolf M, Kamo W, Pichler G, Schwaberger B, Urlesberger B. Precision of time-resolved near-infrared spectroscopy-based measurements of cerebral oxygenation in preterm infants. NEUROPHOTONICS 2021; 8:045001. [PMID: 34703847 PMCID: PMC8536243 DOI: 10.1117/1.nph.8.4.045001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Accepted: 08/10/2021] [Indexed: 06/13/2023]
Abstract
Significance: Time-resolved near-infrared spectroscopy (t-NIRS) is a new technology; at the moment, data on its precision in preterm infants are rare. Aim: Therefore, the aim of this study was to analyze the precision of t-NIRS-based measurements of the cerebral oxygenation in preterm infants. Approach: In 70 neonates [age: 4.7 ± 2.0 days, sex (f/m): 33/37], cerebral oxygenation ( t - rSO 2 ) was measured with an optode placed over the left frontotemporal lobe on the head, measurement duration was 1 min, and a reapplication was done for four further times (five applications). Results: Overall mean for t - rSO 2 values was 62.2 % ± 4.1 % . We found a within-patient variation for t - rSO 2 of 2.6%. Furthermore, 95% of all observed values were within a range of ± 5 % from the mean when looking on several reapplications and ± 2 % when looking within one application. Most of the variation in t - rSO 2 (60.4%) contributed to differences between patients. The remaining 39.6% of the variation was due to measurement errors and real changes of the measured signal within the neonates. Conclusions: Since within-patient variation of t - rSO 2 measures were below a clinical meaningful threshold of 5%, the measurement can be denoted as precise.
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Affiliation(s)
- Alexander Avian
- Medical University of Graz, Institute for Medical Informatics, Statistics, and Documentation, Graz, Austria
| | - Christian Mattersberger
- Medical University of Graz, Division of Neonatology, Graz, Austria
- Medical University of Graz, Research Unit for Neonatal Macro- and Microcirculation, Graz, Austria
| | - Lukas Schober
- Medical University of Graz, Division of Neonatology, Graz, Austria
- Medical University of Graz, Research Unit for Cerebral Development and Oximetry Research, Graz, Austria
| | - Johann Martensen
- Medical University of Graz, Division of Neonatology, Graz, Austria
| | - Martin Wolf
- University of Zurich, University Hospital Zurich, Department of Neonatology, Biomedical Optics Research Laboratory, Zurich, Switzerland
| | - Wataru Kamo
- Hamamatsu Photonics K.K., Systems Division, Hamamatsu, Japan
| | - Gerhard Pichler
- Medical University of Graz, Division of Neonatology, Graz, Austria
- Medical University of Graz, Research Unit for Neonatal Macro- and Microcirculation, Graz, Austria
| | | | - Berndt Urlesberger
- Medical University of Graz, Division of Neonatology, Graz, Austria
- Medical University of Graz, Research Unit for Cerebral Development and Oximetry Research, Graz, Austria
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Zhao Y, Zhang H, Chen Y, Wu T, Zhang J. Choosing placental hypoxic-ischemic measures that have clinical implications in child development and diseases. J Matern Fetal Neonatal Med 2021; 35:7238-7247. [PMID: 34525890 DOI: 10.1080/14767058.2021.1946782] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
PURPOSE Placental hypoxic-ischemic pathology is one of the common causes for adverse outcomes. But there is no commonly accepted evaluation system on specific morphological and histopathological measures of the placenta. OBJECTIVE This study aims to systematically select several core placental hypoxic-ischemic measures that have a high prognostic relevance to child health. METHODS We used data from the Collaborative Perinatal Project, a multicenter prospective cohort study that recruited over 55,000 pregnant women and followed their offspring to 7 years old. Women who had information on placental pathology and child outcomes were included. 57 placental measures considered to be relevant to hypoxia-ischemia were selected. Apgar score, intelligence quotient, preeclampsia, birth weight and subclinical neurology injuries were chosen as outcomes. The least absolute shrinkage and selection operator (LASSO) procedure as well as training and testing methods were used to select a more efficient and simpler placental hypoxic-ischemic measures that may have clinical implications. RESULTS Of the 57 measures, 7 were selected as candidates by LASSO. Based on the training and testing methods, we retained placental measures with a higher odds ratio of child morbidity. We further narrowed down to four measures that had the highest prognostic relevance. They were: short cord length (ΣOR = 8.51), calcification of cut surface (ΣOR = 8.31), opaque membranes (ΣOR = 5.26), Hofbauer cells in terminal villi (ΣOR = 4.69). CONCLUSIONS Our four-measure system is relatively simple and closely related to the child health. It may be used as a novel placental hypoxic-ischemic evaluation criterion, and function as the first line tool for future research.
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Affiliation(s)
- Yanjun Zhao
- Department of Child Health Care, Shanghai Children's Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Huijuan Zhang
- Departments of Pathology and Bio-Bank, the International Peace Maternity and Child Health Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yan Chen
- Ministry of Education-Shanghai Key Laboratory of Children's Environmental Health, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Ting Wu
- Ministry of Education-Shanghai Key Laboratory of Children's Environmental Health, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jun Zhang
- Ministry of Education-Shanghai Key Laboratory of Children's Environmental Health, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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Ogawa S, Hagiwara M, Misumi S, Tajiri N, Shimizu T, Ishida A, Suzumori N, Sugiura-Ogasawara M, Hida H. Transplanted Oligodendrocyte Progenitor Cells Survive in the Brain of a Rat Neonatal White Matter Injury Model but Less Mature in Comparison with the Normal Brain. Cell Transplant 2021; 29:963689720946092. [PMID: 32757665 PMCID: PMC7563029 DOI: 10.1177/0963689720946092] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Preterm infants have a high risk of neonatal white matter injury (WMI) caused by hypoxia-ischemia. Cell-based therapies are promising strategies for neonatal WMI by providing trophic substances and replacing lost cells. Using a rat model of neonatal WMI in which oligodendrocyte progenitors (OPCs) are predominantly damaged, we investigated whether insulin-like growth factor 2 (IGF2) has trophic effects on OPCs in vitro and whether OPC transplantation has potential as a cell replacement therapy. Enhanced expression of Igf2 mRNA was first confirmed in the brain of P5 model rats by real-time polymerase chain reaction. Immunostaining for IGF2 and its receptor IGF2 R revealed that both proteins were co-expressed in OLIG2-positive and GFAP-positive cells in the corpus callosum (CC), indicating autocrine and paracrine effects of IGF2. To investigate the in vitro effect of IGF2 on OPCs, IGF2 (100 ng/ml) was added to the differentiation medium containing ciliary neurotrophic factor (10 ng/ml) and triiodothyronine (20 ng/ml), and IGF2 promoted the differentiation of OPCs into mature oligodendrocytes. We next transplanted rat-derived OPCs that express green fluorescent protein into the CC of neonatal WMI model rats without immunosuppression and investigated the survival of grafted cells for 8 weeks. Although many OPCs survived for at least 8 weeks, the number of mature oligodendrocytes was unexpectedly small in the CC of the model compared with that in the sham-operated control. These findings suggest that the mechanism in the brain that inhibits differentiation should be solved in cell replacement therapy for neonatal WMI as same as trophic support from IGF2.
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Affiliation(s)
- Shino Ogawa
- Departments of Neurophysiology and Brain Science, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan.,Obstetrics and Gynecology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, Japan
| | - Mutsumi Hagiwara
- Departments of Neurophysiology and Brain Science, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Sachiyo Misumi
- Departments of Neurophysiology and Brain Science, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Naoki Tajiri
- Departments of Neurophysiology and Brain Science, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Takeshi Shimizu
- Departments of Neurophysiology and Brain Science, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Akimasa Ishida
- Departments of Neurophysiology and Brain Science, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Nobuhiro Suzumori
- Obstetrics and Gynecology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, Japan
| | - Mayumi Sugiura-Ogasawara
- Obstetrics and Gynecology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, Japan
| | - Hideki Hida
- Departments of Neurophysiology and Brain Science, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
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Ramirez JSB, Graham AM, Thompson JR, Zhu JY, Sturgeon D, Bagley JL, Thomas E, Papadakis S, Bah M, Perrone A, Earl E, Miranda-Dominguez O, Feczko E, Fombonne EJ, Amaral DG, Nigg JT, Sullivan EL, Fair DA. Maternal Interleukin-6 Is Associated With Macaque Offspring Amygdala Development and Behavior. Cereb Cortex 2021; 30:1573-1585. [PMID: 31665252 DOI: 10.1093/cercor/bhz188] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2018] [Revised: 07/11/2019] [Accepted: 07/16/2019] [Indexed: 12/20/2022] Open
Abstract
Human and animal cross-sectional studies have shown that maternal levels of the inflammatory cytokine interleukin-6 (IL-6) may compromise brain phenotypes assessed at single time points. However, how maternal IL-6 associates with the trajectory of brain development remains unclear. We investigated whether maternal IL-6 levels during pregnancy relate to offspring amygdala volume development and anxiety-like behavior in Japanese macaques. Magnetic resonance imaging (MRI) was administered to 39 Japanese macaque offspring (Female: 18), providing at least one or more time points at 4, 11, 21, and 36 months of age with a behavioral assessment at 11 months of age. Increased maternal third trimester plasma IL-6 levels were associated with offspring's smaller left amygdala volume at 4 months, but with more rapid amygdala growth from 4 to 36 months. Maternal IL-6 predicted offspring anxiety-like behavior at 11 months, which was mediated by reduced amygdala volumes in the model's intercept (i.e., 4 months). The results increase our understanding of the role of maternal inflammation in the development of neurobehavioral disorders by detailing the associations of a commonly examined inflammatory indicator, IL-6, on amygdala volume growth over time, and anxiety-like behavior.
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Affiliation(s)
- Julian S B Ramirez
- Department of Behavioral Neuroscience, Oregon Health & Science University, Portland OR, USA
| | - Alice M Graham
- Department of Behavioral Neuroscience, Oregon Health & Science University, Portland OR, USA
| | - Jacqueline R Thompson
- Divisions of Neuroscience and Cardiometabolic Health, Oregon National Primate Research Center, Beaverton OR, USA
| | - Jennifer Y Zhu
- Department of Behavioral Neuroscience, Oregon Health & Science University, Portland OR, USA
| | - Darrick Sturgeon
- Department of Behavioral Neuroscience, Oregon Health & Science University, Portland OR, USA
| | - Jennifer L Bagley
- Divisions of Neuroscience and Cardiometabolic Health, Oregon National Primate Research Center, Beaverton OR, USA
| | - Elina Thomas
- Department of Behavioral Neuroscience, Oregon Health & Science University, Portland OR, USA
| | - Samantha Papadakis
- Neuroscience Graduate Program, Oregon Health & Science University, Portland OR, USA
| | - Muhammed Bah
- Department of Behavioral Neuroscience, Oregon Health & Science University, Portland OR, USA
| | - Anders Perrone
- Department of Behavioral Neuroscience, Oregon Health & Science University, Portland OR, USA
| | - Eric Earl
- Department of Behavioral Neuroscience, Oregon Health & Science University, Portland OR, USA
| | | | - Eric Feczko
- Department of Behavioral Neuroscience, Oregon Health & Science University, Portland OR, USA.,Department of Medical Informatics and Clinical Epidemiology, Oregon Health & Science University, Portland OR, USA
| | - Eric J Fombonne
- Department of Psychiatry, Oregon Health & Science University, Portland OR, USA.,Department of Pediatrics, Oregon Health & Science University, Portland OR, USA.,Institute for Development & Disability, Oregon Health & Science University, Portland OR, USA
| | - David G Amaral
- MIND Institute, University of California Davis, Davis CA, USA.,Department of Psychiatry and Behavioral Sciences, and Center for Neuroscience, University of California Davis, Davis CA, USA.,California National Primate Research Center, University of California Davis, Davis CA, USA
| | - Joel T Nigg
- Department of Behavioral Neuroscience, Oregon Health & Science University, Portland OR, USA.,Department of Psychiatry, Oregon Health & Science University, Portland OR, USA
| | - Elinor L Sullivan
- Divisions of Neuroscience and Cardiometabolic Health, Oregon National Primate Research Center, Beaverton OR, USA.,Department of Psychiatry, Oregon Health & Science University, Portland OR, USA.,Department of Human Physiology, University of Oregon, Eugene OR, USA
| | - Damien A Fair
- Department of Behavioral Neuroscience, Oregon Health & Science University, Portland OR, USA.,Neuroscience Graduate Program, Oregon Health & Science University, Portland OR, USA.,Department of Psychiatry, Oregon Health & Science University, Portland OR, USA.,Advance Imaging Research Center, Oregon Health & Science University, Portland OR, USA
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Tichelman E, Warmink-Perdijk W, Henrichs J, Peters L, Schellevis FG, Berger MY, Burger H. Intrapartum synthetic oxytocin, behavioral and emotional problems in children, and the role of postnatal depressive symptoms, postnatal anxiety and mother-to-infant bonding: A Dutch prospective cohort study. Midwifery 2021; 100:103045. [PMID: 34077815 DOI: 10.1016/j.midw.2021.103045] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Revised: 02/22/2021] [Accepted: 05/13/2021] [Indexed: 11/20/2022]
Abstract
OBJECTIVE To examine the association between intrapartum synthetic oxytocin and child behavioral and emotional problems and to assess if maternal depressive or anxious symptoms or mother-to-infant bonding play a mediating role in this association. DESIGN Prospective cohort study. SETTING Population-based Pregnancy Anxiety and Depression Study. PARTICIPANTS Pregnant women in their first trimester of pregnancy visiting a total of 109 primary and nine secondary obstetric care centers in the Netherlands between 2010 and 2014 were invited to participate. Follow-up measures used for the present study were collected from May 2010 to January 2019. Women with multiple gestations and with a preterm birth were excluded. MEASUREMENTS Intrapartum synthetic oxytocin exposure status was based on medical birth records and was defined as its administration (Yes/No), either for labour induction or augmentation. Child behavioral and emotional problems were measured with the Child Behavior Checklist at up to 60 months postpartum. Maternal depressive symptoms, anxiety and mother-to infant bonding were measured with the Edinburgh Postnatal Depression Scale, State Trait Anxiety Inventory and the Mother-to-Infant Bonding Scale from 6 months postpartum. We used multivariable linear regression models to estimate standardized beta coefficients and unique variance explained. FINDINGS 1,528 women responded. In total 607 women received intrapartum synthetic oxytocin. Intrapartum synthetic oxytocin administration was not associated with child behavioral and emotional problems, mother-to-infant bonding nor with postnatal anxiety. Intrapartum synthetic oxytocin was however significantly but weakly associated with more postnatal depressive symptoms (β=0.17, 95%CI of 0.03 to 0.30) explaining 0.6% of unique variance. Maternal postnatal depressive symptoms, postnatal anxiety symptoms and suboptimal mother-to-infant bonding were positively associated with child behavioral and emotional problems. KEY CONCLUSIONS AND IMPLICATIONS FOR PRACTICE We found no evidence that intrapartum synthetic oxytocin is associated with child behavioral and emotional problems, mother-to-infant bonding, or with postnatal anxiety symptoms. Because there was no association between intrapartum synthetic oxytocin and behavioral and emotional problems in children no mediation analysis was carried out. However, intrapartum synthetic oxytocin was positively but weakly associated with postnatal depressive symptoms. The clinical relevance of this finding is negligible in the general population, but unknown in a population with a high risk of depression.
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Affiliation(s)
- Elke Tichelman
- Amsterdam UMC, Vrije Universiteit Amsterdam, Department of Midwifery Science, AVAG, Amsterdam Public, Health research institute, Amsterdam, the Netherlands; University of Groningen, University Medical Centre Groningen, Department of General Practice and Elderly Care Medicine, the Netherlands.
| | - Willemijn Warmink-Perdijk
- Amsterdam UMC, Vrije Universiteit Amsterdam, Department of Midwifery Science, AVAG, Amsterdam Public, Health research institute, Amsterdam, the Netherlands; University of Groningen, University Medical Centre Groningen, Department of General Practice and Elderly Care Medicine, the Netherlands
| | - Jens Henrichs
- Amsterdam UMC, Vrije Universiteit Amsterdam, Department of Midwifery Science, AVAG, Amsterdam Public, Health research institute, Amsterdam, the Netherlands
| | - Lillian Peters
- Amsterdam UMC, Vrije Universiteit Amsterdam, Department of Midwifery Science, AVAG, Amsterdam Public, Health research institute, Amsterdam, the Netherlands; University of Groningen, University Medical Centre Groningen, Department of General Practice and Elderly Care Medicine, the Netherlands
| | - Francois G Schellevis
- Amsterdam UMC, Vrije Universiteit Amsterdam, Department of General Practice and Elderly Care Medicine, Amsterdam Public Health Research Institute, Amsterdam, the Netherlands; NIVEL, Netherlands Institute for Health Services Research, Utrecht, the Netherlands
| | - Marjolein Y Berger
- University of Groningen, University Medical Centre Groningen, Department of General Practice and Elderly Care Medicine, the Netherlands
| | - Huibert Burger
- University of Groningen, University Medical Centre Groningen, Department of General Practice and Elderly Care Medicine, the Netherlands
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Gold N, Herry CL, Wang X, Frasch MG. Fetal Cardiovascular Decompensation During Labor Predicted From the Individual Heart Rate Tracing: A Machine Learning Approach in Near-Term Fetal Sheep Model. Front Pediatr 2021; 9:593889. [PMID: 34026680 PMCID: PMC8132964 DOI: 10.3389/fped.2021.593889] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Accepted: 03/31/2021] [Indexed: 12/26/2022] Open
Abstract
Background: When exposed to repetitive umbilical cord occlusions (UCO) with worsening acidemia, fetuses eventually develop cardiovascular decompensation manifesting as pathological hypotensive arterial blood pressure (ABP) responses to fetal heart rate (FHR) decelerations. Failure to maintain cardiac output during labor is a key event leading up to brain injury. We reported that the timing of the event when a fetus begins to exhibit this cardiovascular phenotype is highly individual and was impossible to predict. Objective: We hypothesized that this phenotype would be reflected in the individual behavior of heart rate variability (HRV) as measured by root mean square of successive differences of R-R intervals (RMSSD), a measure of vagal modulation of HRV, which is known to increase with worsening acidemia. This is clinically relevant because HRV can be computed in real-time intrapartum. Consequently, we aimed to predict the individual timing of the event when a hypotensive ABP pattern would emerge in a fetus from a series of continuous RMSSD data. Study Design: Fourteen near-term fetal sheep were chronically instrumented with vascular catheters to record fetal arterial blood pressure, umbilical cord occluder to mimic uterine contractions occurring during human labor and ECG electrodes to compute the ECG-derived HRV measure RMSSD. All animals were studied over a ~6 h period. After a 1-2 h baseline control period, the animals underwent mild, moderate, and severe series of repetitive UCO. We applied the recently developed machine learning algorithm to detect physiologically meaningful changes in RMSSD dynamics with worsening acidemia and hypotensive responses to FHR decelerations. To mimic clinical scenarios using an ultrasound-based 4 Hz FHR sampling rate, we recomputed RMSSD from FHR sampled at 4 Hz and compared the performance of our algorithm under both conditions (1,000 Hz vs. 4 Hz). Results: The RMSSD values were highly non-stationary, with four different regimes and three regime changes, corresponding to a baseline period followed by mild, moderate, and severe UCO series. Each time series was characterized by seemingly randomly occurring (in terms of timing of the individual onset) increase in RMSSD values at different time points during the moderate UCO series and at the start of the severe UCO series. This event manifested as an increasing trend in RMSSD values, which counter-intuitively emerged as a period of relative stationarity for the time series. Our algorithm identified these change points as the individual time points of cardiovascular decompensation with 92% sensitivity, 86% accuracy and 92% precision which corresponded to 14 ± 21 min before the visual identification. In the 4 Hz RMSSD time series, the algorithm detected the event with 3 times earlier detection times than at 1,000 Hz, i.e., producing false positive alarms with 50% sensitivity, 21% accuracy, and 27% precision. We identified the overestimation of baseline FHR variability by RMSSD at a 4 Hz sampling rate to be the cause of this phenomenon. Conclusions: The key finding is demonstration of FHR monitoring to detect fetal cardiovascular decompensation during labor. This validates the hypothesis that our HRV-based algorithm identifies individual time points of ABP responses to UCO with worsening acidemia by extracting change point information from the physiologically related fluctuations in the RMSSD signal. This performance depends on the acquisition accuracy of beat to beat fluctuations achieved in trans-abdominal ECG devices and fails at the sampling rate used clinically in ultrasound-based systems. This has implications for implementing such an approach in clinical practice.
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Affiliation(s)
- Nathan Gold
- Department of Mathematics and Statistics, York University, Toronto, ON, Canada
- Centre for Quantitative Analysis and Modelling, Fields Institute for Research in Mathematical Science, Toronto, ON, Canada
| | - Christophe L. Herry
- Dynamical Analysis Laboratory, Clinical Epidemiology Program, Ottawa Hospital Research Institute, Ottawa, ON, Canada
| | - Xiaogang Wang
- Department of Mathematics and Statistics, York University, Toronto, ON, Canada
- Institute of Big Data, Qing Hua University, Beijing, China
| | - Martin G. Frasch
- Department of Obstetrics and Gynecology and Center on Human Development and Disability, University of Washington, Seattle, WA, United States
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Zhang W, Ge F, Lian C, Xia R, Zhang B. A Single-Center Observational Clinical Study on Factors Associated with Regional Cerebral Oxygen Saturation in Full-Term Newborn Infants During Birth Transition. Med Sci Monit 2021; 27:e928750. [PMID: 33746201 PMCID: PMC7995919 DOI: 10.12659/msm.928750] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
Background Hypoxic hypoperfusion injury in the brain is a cause of potential injury and even death in the growth period of newborns. Therefore, monitoring regional cerebral oxygen saturation (CrSO2) during this period is particularly important. This observational clinical study from a single center aimed to investigate the factors associated with CrSO2 in full-term newborn infants during birth transition. Material/Methods We enrolled 84 full-term newborn infants delivered by cesarean section. We started the stopwatch with the obstetrician clamping the newborns’ umbilical cords and recorded the values of newborns’ CrSO2, pulse oxygen saturation (SpO2), pulse rate (PR), end-tidal carbon dioxide (EtCO2), and respiratory rate (RR) at 2 min, 5 min, and 10 min. We weighed the newborns before they left the operating room and used statistical methods to compare the correlation between each observation factor. Results Pearson correlation coefficients between CrSO2 and SpO2 measured at 2 min, 5 min, and 10 min were 0.491, 0.599, and 0.587, respectively (P<0.01). Pearson correlation coefficients between CrSO2 and EtCO2 measured at 2 min, 5 min, and 10 min were −0.304, −0.443, and −0.243, respectively (P<0.05). Regardless of a newborn’s weight, PR, or RR, the correlation between any of those factors and the value of CrSO2 measured at the corresponding time point had no significance (P>0.05). Conclusions This study showed a correlation between CrSO2 and SpO2 and CrSO2 and EtCO2 during birth transition of full-term infants delivered by elective cesarean section, but CrSO2 had no significant correlation with neonatal weight, PR, or RR.
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Affiliation(s)
- Weiqiao Zhang
- Department of Anesthesiology, Zhejiang Provincial Hospital of Traditional Chinese Medicine, Hangzhou, Zhejiang, China (mainland)
| | - Fei Ge
- Department of Anesthesiology, Sir Run Run Shaw Hospital, Medical College of Zhejiang University, Hangzhou, Zhejiang, China (mainland)
| | - Chaohui Lian
- Department of Anesthesiology and Perioperative Medicine, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China (mainland)
| | - Ruiqiang Xia
- Department of Anesthesiology and Perioperative Medicine, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China (mainland)
| | - Bing Zhang
- Department of Anesthesiology and Perioperative Medicine, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China (mainland)
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40
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Shaw JC, Crombie GK, Palliser HK, Hirst JJ. Impaired Oligodendrocyte Development Following Preterm Birth: Promoting GABAergic Action to Improve Outcomes. Front Pediatr 2021; 9:618052. [PMID: 33634057 PMCID: PMC7901941 DOI: 10.3389/fped.2021.618052] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Accepted: 01/12/2021] [Indexed: 11/21/2022] Open
Abstract
Preterm birth is associated with poor long-term neurodevelopmental and behavioral outcomes, even in the absence of obvious brain injury at the time of birth. In particular, behavioral disorders characterized by inattention, social difficulties and anxiety are common among children and adolescents who were born moderately to late preterm (32-37 weeks' gestation). Diffuse deficits in white matter microstructure are thought to play a role in these poor outcomes with evidence suggesting that a failure of oligodendrocytes to mature and myelinate axons is responsible. However, there remains a major knowledge gap over the mechanisms by which preterm birth interrupts normal oligodendrocyte development. In utero neurodevelopment occurs in an inhibitory-dominant environment due to the action of placentally derived neurosteroids on the GABAA receptor, thus promoting GABAergic inhibitory activity and maintaining the fetal behavioral state. Following preterm birth, and the subsequent premature exposure to the ex utero environment, this action of neurosteroids on GABAA receptors is greatly reduced. Coinciding with a reduction in GABAergic inhibition, the preterm neonatal brain is also exposed to ex utero environmental insults such as periods of hypoxia and excessive glucocorticoid concentrations. Together, these insults may increase levels of the excitatory neurotransmitter glutamate in the developing brain and result in a shift in the balance of inhibitory: excitatory activity toward excitatory. This review will outline the normal development of oligodendrocytes, how it is disrupted under excitation-dominated conditions and highlight how shifting the balance back toward an inhibitory-dominated environment may improve outcomes.
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Affiliation(s)
- Julia C Shaw
- School of Biomedical Sciences and Pharmacy, University of Newcastle, Newcastle, NSW, Australia.,Mothers and Babies Research Centre, Hunter Medical Research Institute, New Lambton Heights, NSW, Australia
| | - Gabrielle K Crombie
- School of Biomedical Sciences and Pharmacy, University of Newcastle, Newcastle, NSW, Australia.,Mothers and Babies Research Centre, Hunter Medical Research Institute, New Lambton Heights, NSW, Australia
| | - Hannah K Palliser
- School of Biomedical Sciences and Pharmacy, University of Newcastle, Newcastle, NSW, Australia.,Mothers and Babies Research Centre, Hunter Medical Research Institute, New Lambton Heights, NSW, Australia
| | - Jonathan J Hirst
- School of Biomedical Sciences and Pharmacy, University of Newcastle, Newcastle, NSW, Australia.,Mothers and Babies Research Centre, Hunter Medical Research Institute, New Lambton Heights, NSW, Australia
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41
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Morozova AY, Arutyunyan AV, Morozova PY, Kozina LS, Zhuravin IA, Nalivaeva NN. Effect of Prenatal Hypoxia on Activity
of the Soluble Forms of Cholinesterases in Rat Brain Structures
during Early Postnatal Ontogenesis. J EVOL BIOCHEM PHYS+ 2020. [DOI: 10.1134/s002209302006006x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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42
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The Effects of an Infant Formula Enriched with Milk Fat Globule Membrane, Long-Chain Polyunsaturated Fatty Acids and Synbiotics on Child Behavior up to 2.5 Years Old: The COGNIS Study. Nutrients 2020; 12:nu12123825. [PMID: 33333767 PMCID: PMC7765166 DOI: 10.3390/nu12123825] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Revised: 12/10/2020] [Accepted: 12/14/2020] [Indexed: 01/10/2023] Open
Abstract
Although early life nutrition influences brain development and mental health, the long-term effects of supplemented infant formula on children´s behavior remain unclear. We analyzed the effects of a bioactive nutrients-enriched-infant formula on children’s behavior up to 2.5 years, compared to a standard infant formula or breastfeeding. Current analysis involved 70 children who were fed a standard infant formula (SF, n = 29) or a bioactive compounds enriched-infant formula (EF, n = 41), during their first 18 months of life, and 33 breastfed (BF) children (reference group) participating in the COGNIS study. Behavioral problems were evaluated using the Child Behavior Checklist at 18 months and 2.5 years. Different statistical analyses were performed using SPSS. EF children aged 2.5 years presented fewer pathological affective problems than SF children. Besides, SF children were classified more frequently as bordering on internalizing problems than BF children. Rates of externalizing problems were increased in SF infants compared to EF and BF infants. Higher maternal IQ was found to have beneficial effects on internalizing and total problem rate in their offspring at 18 months of life; finally, higher maternal educational level was related with fewer ADHD problems in children at 18 months, as well as internalizing, externalizing, total and anxiety problems in children aged 2.5 years. Our analysis suggests that enriched infant formula fed infants seem to show fewer behavioral problems up to 2.5 years compared to a standard infant formula-fed infants. In addition to type of early feeding, maternal IQ and educational level seem to play a key role on children behavioral development.
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Sainz JA, Carrera J, Borrero C, García-Mejido JA, Fernández-Palacín A, Robles A, Sosa F, Arroyo E. Study of the Development of Placental Microvascularity by Doppler SMI (Superb Microvascular Imaging): A Reality Today. ULTRASOUND IN MEDICINE & BIOLOGY 2020; 46:3257-3267. [PMID: 32928602 DOI: 10.1016/j.ultrasmedbio.2020.08.017] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Revised: 08/03/2020] [Accepted: 08/13/2020] [Indexed: 06/11/2023]
Abstract
Our objective was to evaluate the development of placental vascularization in normal gestation by using Doppler superb microvascular imaging (SMI). The fetal and maternal parameters of 20 pregnant women without pathology were evaluated at weeks 12, 16, 20-22, 24-26, 28-30, 32-34, 36-38 and 40-42. Doppler SMI was used to evaluate the placental vascularization (pulsatile index and peak systolic velocity) of the primary, secondary and tertiary (third) villi, and qualitative placental descriptions and anatomic-pathologic studies of these placentas were performed. The number of cotyledons identified by Doppler SMI increased from two between weeks 16 and 18 to 24 between weeks 28 and 38. The secondary and tertiary villi began developing at 20 wk of gestation. The pulsatile index of the primary villi remained constant (0.8-0.9 in all pregnancies). The pulsatile index of the secondary and tertiary villi increased from 1.1 to 1.53 and from 1.4 to 1.68, respectively. The peak systolic velocity underwent a significant increase throughout gestation in the secondary and tertiary villi (9.2 to 34.9 cm/s and 7.5 to 52.9 cm/s, respectively). We evaluated the development of placental microvascularization using Doppler SMI in pregnancies without pathology and describe normal placental Doppler SMI findings.
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Affiliation(s)
- José Antonio Sainz
- Department of Obstetrics and Gynecology, Valme University Hospital, Seville, Spain; Department of Obstetrics and Gynecology, University of Seville, Spain.
| | - Jara Carrera
- Department of Obstetrics and Gynecology, Valme University Hospital, Seville, Spain
| | - Carlota Borrero
- Department of Obstetrics and Gynecology, Valme University Hospital, Seville, Spain; Department of Obstetrics and Gynecology, University of Seville, Spain
| | - José Antonio García-Mejido
- Department of Obstetrics and Gynecology, Valme University Hospital, Seville, Spain; Department of Obstetrics and Gynecology, University of Seville, Spain
| | - Ana Fernández-Palacín
- Biostatistics Unit, Department of Preventive Medicine and Public Health, University of Seville, Spain
| | - Antonio Robles
- Department of Pathology, Valme University Hospital, Seville, Spain
| | - Francisco Sosa
- Department of Pathology, Valme University Hospital, Seville, Spain
| | - Eva Arroyo
- Department of Obstetrics and Gynecology, Valme University Hospital, Seville, Spain
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44
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Epidural analgesia, intrapartum hyperthermia, and neonatal brain injury: a systematic review and meta-analysis. Br J Anaesth 2020; 126:500-515. [PMID: 33218673 DOI: 10.1016/j.bja.2020.09.046] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Revised: 09/21/2020] [Accepted: 09/23/2020] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Epidural analgesia is associated with intrapartum hyperthermia, and chorioamnionitis is associated with neonatal brain injury. However, it is not known if epidural hyperthermia is associated with neonatal brain injury. This systematic review and meta-analysis investigated three questions: (1) does epidural analgesia cause intrapartum hyperthermia, (2) is intrapartum hyperthermia associated with neonatal brain injury, and (3) is epidural-induced hyperthermia associated with neonatal brain injury? METHODS PubMed, ISI Web of Knowledge, The Cochrane Library, and Embase were searched from inception to January 2020 using Medical Subject Headings (MeSH) terms relating to epidural analgesia, hyperthermia, labour, and neonatal brain injury. Studies were reviewed independently for inclusion and quality by two authors (Grading of Recommendations, Assessment, Development and Evaluation (GRADE) approach). Two meta-analyses were performed using the Mantel-Haenszel fixed effect method to generate odds ratios (ORs) and 95% confidence intervals (CIs). RESULTS Forty-one studies were included for Question 1 (646 296 participants), 36 for Question 2 (11 866 021 participants), and two studies for Question 3 (297 113 participants). When the mode of analgesia was randomised, epidural analgesia was associated with intrapartum hyperthermia (OR: 4.21; 95% CI: 3.48-5.09). There was an association between intrapartum hyperthermia and neonatal brain injury (OR: 2.79; 95% CI: 2.54-2.3.06). It was not possible to quantify the association between epidural-induced hyperthermia and neonatal brain injury. CONCLUSIONS Epidural analgesia is a cause of intrapartum hyperthermia, and intrapartum hyperthermia of any cause is associated with neonatal brain injury. Further work is required to establish if epidural-induced hyperthermia is a cause of neonatal brain injury.
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45
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Shayganfard M. Molecular and biological functions of resveratrol in psychiatric disorders: a review of recent evidence. Cell Biosci 2020; 10:128. [PMID: 33292508 PMCID: PMC7648996 DOI: 10.1186/s13578-020-00491-3] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2020] [Accepted: 10/29/2020] [Indexed: 12/20/2022] Open
Abstract
Mental disorders including depression, anxiety, schizophrenia, autism spectrum disorders, bipolar and etc. have a considerable proportion of global disorder burden. Many nutritional psychiatry investigations have been conducted to evaluate the relationship between several individual nutrients such as herbal compounds with mental health. Resveratrol, a famous polyphenol compound, is known as an antioxidant, anti-inflammatory, anti-apoptotic, and neuroprotective agent regulating the function of brain and improves the behavioral factors associated with learning, anxiety, depression, and memory. In addition, this natural compound can cross the blood–brain barrier representing neurological influences. The pharmacological interest of utilizing resveratrol in mental disorders is due to its anti-inflammatory and antioxidant features. The aim of this paper was to review the studies evaluated the potential effects of resveratrol on mental disorders.
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Affiliation(s)
- Mehran Shayganfard
- Department of Psychiatry, Arak University of Medical Sciences, Arak, Iran.
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Wagner JB, Jabès A, Norwood A, Nelson CA. Attentional Measures of Memory in Typically Developing and Hypoxic-Ischemic Injured Infants. Brain Sci 2020; 10:brainsci10110823. [PMID: 33172071 PMCID: PMC7694651 DOI: 10.3390/brainsci10110823] [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: 08/22/2020] [Revised: 10/08/2020] [Accepted: 10/14/2020] [Indexed: 11/16/2022] Open
Abstract
Hypoxic–ischemic injury (HII) at birth has been found to relate to differences in development, including decreased memory performance. The current study assessed recognition memory in 6- and 12-month-old HII infants and typically developing (TD) infants using two eye-tracking paradigms well suited to explore explicit memory processes early in life: visual paired comparison (VPC) and relational memory (RM). During the VPC, infants were familiarized to a face and then tested for their novelty preference immediately and after a two-minute delay. At 6 months, neither HII nor TD showed a VPC novelty preference at immediate delay, but at 12 months, both groups did; after the two-minute delay, no group showed a novelty preference. During RM, infants were presented with blocks containing a learning phase with three different scene–face pairs, and a test phase with one of the three scenes and all three faces appearing simultaneously. When there was no interference from other scene–face pairs between learning and test, 6-month-old TD showed evidence of an early novelty preference, but when there was interference, they revealed an early familiarity preference. For 12-month-old TD, some evidence for a novelty preference during RM was seen regardless of interference. Although HII and TD showed similar recognition memory on the VPC, when looking at RM, HII infants showed subtle differences in their attention to the familiar and novel faces as compared to their TD peers, suggesting that there might be subtle differences in the underlying memory processing mechanisms between HII and TD. More work is needed to understand how these attentional patterns might be predictive of later memory outcomes.
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Affiliation(s)
- Jennifer B. Wagner
- Department of Psychology, College of Staten Island, City University of New York, Staten Island, NY 10314, USA
- Department of Psychology, The Graduate Center, City University of New York, New York, NY 10016, USA
- Correspondence: ; Tel.: +1-718-982-4092; Fax: +1-718-982-4114
| | - Adeline Jabès
- Institute of Psychology, University of Lausanne, 1015 Lausanne, Switzerland;
| | - Agatha Norwood
- Pediatric Medical Group of New Mexico, Presbyterian Hospital, Albuquerque, NM 87106, USA;
| | - Charles A. Nelson
- Division of Developmental Medicine, Boston Children’s Hospital, Harvard Medical School, Boston, MA 02215, USA;
- Harvard Graduate School of Education, Harvard University, Cambridge, MA 02138, USA
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47
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Morozova AY, Arutjunyan AV, Milyutina YP, Morozova PY, Kozina LS, Zhuravin IA. Influence of Prenatal Hypoxia on the Content of Neuron Specific Enolase in the Structures of the Brain and Blood Serum of Rats in Early Ontogeny. NEUROCHEM J+ 2020. [DOI: 10.1134/s1819712420030083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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48
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Miao J, Ren Z, Rao Y, Xia X, Wang J, Xu F, Zhang X, Yang J. Pathological staging of chorioamnionitis contributes to complications in preterm infants. Ital J Pediatr 2020; 46:127. [PMID: 32917243 PMCID: PMC7488745 DOI: 10.1186/s13052-020-00895-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Accepted: 09/02/2020] [Indexed: 11/22/2022] Open
Abstract
Objective To investigate the effect of pathological staging of chorioamnionitis (CA) on complications in preterm infants; Methods A single-center, retrospective study was conducted to choose singleton preterm infants (gestational age < 37 weeks) from the Department of Obstetrics and Gynecology in our hospital from December 2016 to December 2017. The basic data and placental pathological results were retrospectively collected. According to the placental pathological results of whether inflammation infiltrating amnion, CA 0/I phase was classified into non-amnionitis group, CA II/III phase was classified into amnionitis group, the incidence of common complications in preterm infants was compared. Further, logistic regression was used to analyze the effects of amnionitis on complications after being adjusted to gestational age, birth weight and thrombocytopenia. Results A total of 221 preterm infants were enrolled, including 186 cases in non-amnionitis group and 35 cases in amnionitis group. The gestational age of amnionitis group (32.00 ± 2.71 weeks) was significantly lower than non-amnionitis group (34.14 ± 2.06 weeks), birth weight (1.93 ± 0.64 kg) was significantly lower than that of non-amnionitis group (2.26 ± 0.58 kg), and the hospital stay in amnionitis group was significantly longer (25.71 ± 19.23 days), all of the difference above was statistically significant(P < 0.05). The incidence of intraventricular hemorrhage (IVH) in amnionitis group (37.14%) was significantly higher than that in non-amnionitis group (13.98%) (P = 0.002), and the risk of IVH was significantly increased by amnionitis (OR = 3.636, 95%CI: 1.632–8.102); after correction of gestational age, birth weight and thrombocytopenia, the risk of IVH was still significantly increased (OR = 2.471, P = 0.046, 95% CI: 1.015–6.015). And the late-onset IVH was more common (P = 0.009). Conclusion Amnionitis leads to a significant reduction in gestational age and birth weight in preterm infants, and it is an independent risk factor for IVH.
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Affiliation(s)
- Jiayu Miao
- Department of Neonatology, Guangdong Women and Children Hospital, Guangzhou, China
| | - Zhuxiao Ren
- Department of Neonatology, Guangdong Women and Children Hospital, Guangzhou, China
| | - Yunbei Rao
- Department of Neonatology, Guangzhou Medical University Second Affiliated Hospital, Guangzhou, China
| | - Xin Xia
- Department of Neonatology, Guangdong Women and Children Hospital, Guangzhou, China
| | - Jianlan Wang
- Department of Neonatology, Guangdong Women and Children Hospital, Guangzhou, China
| | - Fang Xu
- Department of Neonatology, Guangdong Women and Children Hospital, Guangzhou, China
| | - Xiaoling Zhang
- Department of Neonatology, Guangdong Women and Children Hospital, Guangzhou, China
| | - Jie Yang
- Department of Neonatology, Guangdong Women and Children Hospital, Guangzhou, China.
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Chan KYY, Miller SL, Schmölzer GM, Stojanovska V, Polglase GR. Respiratory Support of the Preterm Neonate: Lessons About Ventilation-Induced Brain Injury From Large Animal Models. Front Neurol 2020; 11:862. [PMID: 32922358 PMCID: PMC7456830 DOI: 10.3389/fneur.2020.00862] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2020] [Accepted: 07/07/2020] [Indexed: 11/25/2022] Open
Abstract
Many preterm neonates require mechanical ventilation which increases the risk of cerebral inflammation and white matter injury in the immature brain. In this review, we discuss the links between ventilation and brain injury with a focus on the immediate period after birth, incorporating respiratory support in the delivery room and subsequent mechanical ventilation in the neonatal intensive care unit. This review collates insight from large animal models in which acute injurious ventilation and prolonged periods of ventilation have been used to create clinically relevant brain injury patterns. These models are valuable resources in investigating the pathophysiology of ventilation-induced brain injury and have important translational implications. We discuss the challenges of reconciling lung and brain maturation in commonly used large animal models. A comprehensive understanding of ventilation-induced brain injury is necessary to guide the way we care for preterm neonates, with the goal to improve their neurodevelopmental outcomes.
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Affiliation(s)
- Kyra Y. Y. Chan
- The Ritchie Centre, Hudson Institute of Medical Research, Clayton, VIC, Australia
- Department of Obstetrics and Gynecology, Monash University, Clayton, VIC, Australia
| | - Suzanne L. Miller
- The Ritchie Centre, Hudson Institute of Medical Research, Clayton, VIC, Australia
- Department of Obstetrics and Gynecology, Monash University, Clayton, VIC, Australia
| | - Georg M. Schmölzer
- Neonatal Research Unit, Centre for the Studies of Asphyxia and Resuscitation, Royal Alexandra Hospital, Edmonton, AB, Canada
- Department of Pediatrics, University of Alberta, Edmonton, AB, Canada
| | - Vanesa Stojanovska
- The Ritchie Centre, Hudson Institute of Medical Research, Clayton, VIC, Australia
- Department of Obstetrics and Gynecology, Monash University, Clayton, VIC, Australia
| | - Graeme R. Polglase
- The Ritchie Centre, Hudson Institute of Medical Research, Clayton, VIC, Australia
- Department of Obstetrics and Gynecology, Monash University, Clayton, VIC, Australia
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50
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Ophelders DR, Gussenhoven R, Klein L, Jellema RK, Westerlaken RJ, Hütten MC, Vermeulen J, Wassink G, Gunn AJ, Wolfs TG. Preterm Brain Injury, Antenatal Triggers, and Therapeutics: Timing Is Key. Cells 2020; 9:E1871. [PMID: 32785181 PMCID: PMC7464163 DOI: 10.3390/cells9081871] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Revised: 07/31/2020] [Accepted: 08/05/2020] [Indexed: 02/08/2023] Open
Abstract
With a worldwide incidence of 15 million cases, preterm birth is a major contributor to neonatal mortality and morbidity, and concomitant social and economic burden Preterm infants are predisposed to life-long neurological disorders due to the immaturity of the brain. The risks are inversely proportional to maturity at birth. In the majority of extremely preterm infants (<28 weeks' gestation), perinatal brain injury is associated with exposure to multiple inflammatory perinatal triggers that include antenatal infection (i.e., chorioamnionitis), hypoxia-ischemia, and various postnatal injurious triggers (i.e., oxidative stress, sepsis, mechanical ventilation, hemodynamic instability). These perinatal insults cause a self-perpetuating cascade of peripheral and cerebral inflammation that plays a critical role in the etiology of diffuse white and grey matter injuries that underlies a spectrum of connectivity deficits in survivors from extremely preterm birth. This review focuses on chorioamnionitis and hypoxia-ischemia, which are two important antenatal risk factors for preterm brain injury, and highlights the latest insights on its pathophysiology, potential treatment, and future perspectives to narrow the translational gap between preclinical research and clinical applications.
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Affiliation(s)
- Daan R.M.G. Ophelders
- Department of Pediatrics, Maastricht University Medical Center, 6202 AZ Maastricht, The Netherlands; (D.R.M.G.O.); (R.G.); (L.K.); (R.K.J.); (R.J.J.W.); (M.C.H.)
- School for Oncology and Developmental Biology (GROW), Maastricht University, 6229 ER Maastricht, The Netherlands
| | - Ruth Gussenhoven
- Department of Pediatrics, Maastricht University Medical Center, 6202 AZ Maastricht, The Netherlands; (D.R.M.G.O.); (R.G.); (L.K.); (R.K.J.); (R.J.J.W.); (M.C.H.)
| | - Luise Klein
- Department of Pediatrics, Maastricht University Medical Center, 6202 AZ Maastricht, The Netherlands; (D.R.M.G.O.); (R.G.); (L.K.); (R.K.J.); (R.J.J.W.); (M.C.H.)
- School for Mental Health and Neuroscience (MHeNS), Maastricht University, 6229 ER Maastricht, The Netherlands
| | - Reint K. Jellema
- Department of Pediatrics, Maastricht University Medical Center, 6202 AZ Maastricht, The Netherlands; (D.R.M.G.O.); (R.G.); (L.K.); (R.K.J.); (R.J.J.W.); (M.C.H.)
| | - Rob J.J. Westerlaken
- Department of Pediatrics, Maastricht University Medical Center, 6202 AZ Maastricht, The Netherlands; (D.R.M.G.O.); (R.G.); (L.K.); (R.K.J.); (R.J.J.W.); (M.C.H.)
- School for Oncology and Developmental Biology (GROW), Maastricht University, 6229 ER Maastricht, The Netherlands
| | - Matthias C. Hütten
- Department of Pediatrics, Maastricht University Medical Center, 6202 AZ Maastricht, The Netherlands; (D.R.M.G.O.); (R.G.); (L.K.); (R.K.J.); (R.J.J.W.); (M.C.H.)
- School for Oncology and Developmental Biology (GROW), Maastricht University, 6229 ER Maastricht, The Netherlands
| | - Jeroen Vermeulen
- Department of Pediatric Neurology, Maastricht University Medical Center, 6202 AZ Maastricht, The Netherlands;
| | - Guido Wassink
- Department of Physiology, Faculty of Medical and Health Sciences, University of Auckland, Private bag 92019, Auckland 1023, New Zealand; (G.W.); (A.J.G.)
| | - Alistair J. Gunn
- Department of Physiology, Faculty of Medical and Health Sciences, University of Auckland, Private bag 92019, Auckland 1023, New Zealand; (G.W.); (A.J.G.)
| | - Tim G.A.M. Wolfs
- Department of Pediatrics, Maastricht University Medical Center, 6202 AZ Maastricht, The Netherlands; (D.R.M.G.O.); (R.G.); (L.K.); (R.K.J.); (R.J.J.W.); (M.C.H.)
- School for Oncology and Developmental Biology (GROW), Maastricht University, 6229 ER Maastricht, The Netherlands
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