Variations in Brain Morphometry Among Healthy Preschoolers Born Very Preterm

AbstractBackgroundPreterm birth is associated with an increased risk of neonatal brain injury, which can lead to alterations in brain maturation. Advances in neonatal care have dramatically reduced the incidence of the most significant medical consequences of preterm birth. Relatively healthy preterm infants remain at increased risk for subtle injuries that impact future neurodevelopmental and functioning.AimsTo investigate the gray matter morphometry measures of cortical thickness, surface area, and sulcal depth in the brain using magnetic resonance imaging at 5 years of age in healthy children born very preterm.Study designCohort studySubjectsParticipants were 52 children born very preterm (VPT; less than 33 weeks gestational age) and 37 children born full term.Outcome measuresCortical segmentation and calculation of morphometry measures were completed using FreeSurfer version 5.3.0 and compared between groups using voxel-wise, surface-based analyses.ResultsThe VPT group had a significantly thinner cortex in temporal and parietal regions as well as thicker gray matter in the occipital and inferior frontal regions. Reduced surface area was found in the fusiform area in the VPT group. Sulcal depth was also lower in the VPT group within the posterior parietal and inferior temporal regions and greater sulcal depth was found in the middle temporal and medial parietal regions. Results in some of these regions were correlated with gestational age at birth in the VPT group.ConclusionsThe most widespread differences between the VPT and FT groups were found in cortical thickness. These findings may represent a combination of delayed maturation and permanent alterations caused by the perinatal processes associated with very preterm birth.

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Association between age of cannabis initiation and gray matter covariance networks in recent onset psychosis

Neuropsychopharmacology ◽

10.1038/s41386-021-00977-9 ◽

2021 ◽

Author(s):

Nora Penzel ◽

◽

Linda A. Antonucci ◽

Linda T. Betz ◽

Rachele Sanfelici ◽

...

Keyword(s):

Gray Matter ◽

Inferior Frontal Gyrus ◽

Brain Networks ◽

Developmental Trajectory ◽

Cannabis Use ◽

Brain Maturation ◽

Confounding Factors ◽

Recent Onset ◽

Increased Risk ◽

Structural Brain

AbstractCannabis use during adolescence is associated with an increased risk of developing psychosis. According to a current hypothesis, this results from detrimental effects of early cannabis use on brain maturation during this vulnerable period. However, studies investigating the interaction between early cannabis use and brain structural alterations hitherto reported inconclusive findings. We investigated effects of age of cannabis initiation on psychosis using data from the multicentric Personalized Prognostic Tools for Early Psychosis Management (PRONIA) and the Cannabis Induced Psychosis (CIP) studies, yielding a total sample of 102 clinically-relevant cannabis users with recent onset psychosis. GM covariance underlies shared maturational processes. Therefore, we performed source-based morphometry analysis with spatial constraints on structural brain networks showing significant alterations in schizophrenia in a previous multisite study, thus testing associations of these networks with the age of cannabis initiation and with confounding factors. Earlier cannabis initiation was associated with more severe positive symptoms in our cohort. Greater gray matter volume (GMV) in the previously identified cerebellar schizophrenia-related network had a significant association with early cannabis use, independent of several possibly confounding factors. Moreover, GMV in the cerebellar network was associated with lower volume in another network previously associated with schizophrenia, comprising the insula, superior temporal, and inferior frontal gyrus. These findings are in line with previous investigations in healthy cannabis users, and suggest that early initiation of cannabis perturbs the developmental trajectory of certain structural brain networks in a manner imparting risk for psychosis later in life.

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Endocrine disrupting chemical-associated hair product use during pregnancy and gestational age at delivery: a pilot study

Environmental Health ◽

10.1186/s12940-021-00772-5 ◽

2021 ◽

Vol 20 (1) ◽

Author(s):

Emma V. Preston ◽

Victoria Fruh ◽

Marlee R. Quinn ◽

Michele R. Hacker ◽

Blair J. Wylie ◽

...

Keyword(s):

Preterm Birth ◽

Black Women ◽

Pilot Study ◽

Gestational Age ◽

Endocrine Disrupting Chemical ◽

Product Use ◽

Frequent Use ◽

Increased Risk ◽

Endocrine Disrupting ◽

Gestational Age At Delivery

Abstract Background Prenatal endocrine disrupting chemical (EDC) exposure has been associated with increased risk of preterm birth. Non-Hispanic Black women have higher incidence of preterm birth compared to other racial/ethnic groups and may be disproportionately exposed to EDCs through EDC-containing hair products. However, research on the use of EDC-associated hair products during pregnancy and risk of preterm birth is lacking. Therefore, the objective of this pilot study was to estimate associations of prenatal hair product use with gestational age at delivery in a Boston, Massachusetts area pregnancy cohort. Methods The study population consisted of a subset of participants enrolled in the Environmental Reproductive and Glucose Outcomes (ERGO) Study between 2018 and 2020. We collected self-reported data on demographics and hair product use using a previously validated questionnaire at four prenatal visits (median: 12, 19, 26, 36 weeks’ gestation) and abstracted gestational age at delivery from medical records. We compared gestational age and hair product use by race/ethnicity and used linear regression to estimate covariate-adjusted associations of product use and frequency of use at each study visit with gestational age at delivery. Primary models were adjusted for maternal age at enrollment and delivery method. Results Of the 154 study participants, 7% delivered preterm. Non-Hispanic Black participants had lower mean gestational age at delivery compared to non-Hispanic White participants (38.2 vs. 39.2 weeks) and were more likely to report ever and more frequent use of hair products. In regression models, participants reporting daily use of hair oils at visit 4 had lower mean gestational age at delivery compared to non-users (β: -8.3 days; 95% confidence interval: -14.9, -1.6). We did not find evidence of associations at earlier visits or with other products. Conclusions Frequent use of hair oils during late pregnancy may be associated with shorter gestational duration. As hair oils are more commonly used by non-Hispanic Black women and represent potentially modifiable EDC exposure sources, this may have important implications for the known racial disparity in preterm birth.

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Renal morphology and glomerular capillarisation in young adult sheep born moderately preterm

Journal of Developmental Origins of Health and Disease ◽

10.1017/s2040174420001208 ◽

2020 ◽

pp. 1-7

Author(s):

Megan R. Sutherland ◽

Waleed Malik ◽

Vivian B. Nguyen ◽

Vivian Tran ◽

Graeme R. Polglase ◽

...

Keyword(s):

Preterm Birth ◽

Surface Area ◽

Early Adulthood ◽

Capillary Length ◽

Renal Corpuscle ◽

Adult Sheep ◽

Glomerular Capillary ◽

Renal Morphology ◽

Increased Risk ◽

Moderately Preterm

Abstract Preterm birth (delivery <37 weeks of gestation) is associated with impaired glomerular capillary growth in neonates; if this persists, it may be a contributing factor in the increased risk of hypertension and chronic kidney disease in people born preterm. Therefore, in this study, we aimed to determine the long-term impact of preterm birth on renal morphology, in adult sheep. Singleton male sheep were delivered moderately preterm at 132 days (~0.9) of gestation (n = 6) or at term (147 days gestation; n = 6) and euthanised at 14.5 months of age (early adulthood). Stereological methods were used to determine mean renal corpuscle and glomerular volumes, and glomerular capillary length and surface area, in the outer, mid and inner regions of the renal cortex. Glomerulosclerosis and interstitial collagen levels were assessed histologically. By 14.5 months of age, there was no difference between the term and preterm sheep in body or kidney weight. Renal corpuscle volume was significantly larger in the preterm sheep than the term sheep, with the preterm sheep exhibiting enlarged Bowman’s spaces; however, there was no difference in glomerular volume between groups, with no impact of preterm birth on capillary length or surface area per glomerulus. There was also no difference in interstitial collagen levels or glomerulosclerosis index between groups. Findings suggest that moderate preterm birth does not adversely affect glomerular structure in early adulthood. The enlarged Bowman’s space in the renal corpuscles of the preterm sheep kidneys, however, is of concern and merits further research into its cause and functional consequences.

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Variability of the paracingulate sulcus and morphometry of the medial frontal cortex: Associations with cortical thickness, surface area, volume, and sulcal depth

Human Brain Mapping ◽

10.1002/hbm.20381 ◽

2008 ◽

Vol 29 (2) ◽

pp. 222-236 ◽

Cited By ~ 71

Author(s):

Alex Fornito ◽

Stephen J. Wood ◽

Sarah Whittle ◽

Jack Fuller ◽

Chris Adamson ◽

...

Keyword(s):

Frontal Cortex ◽

Surface Area ◽

Cortical Thickness ◽

Medial Frontal Cortex ◽

Sulcal Depth

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Perinatal Outcomes of Small for Gestational Age in Twin Pregnancies: Twin vs. Singleton Charts

Journal of Clinical Medicine ◽

10.3390/jcm10040643 ◽

2021 ◽

Vol 10 (4) ◽

pp. 643

Author(s):

Veronica Giorgione ◽

Corey Briffa ◽

Carolina Di Fabrizio ◽

Rohan Bhate ◽

Asma Khalil

Keyword(s):

Birth Weight ◽

Preterm Birth ◽

Gestational Age ◽

Small For Gestational Age ◽

Perinatal Death ◽

Perinatal Outcomes ◽

Adverse Outcomes ◽

Chi Square ◽

Increased Risk ◽

Twin Pregnancies

Twin pregnancies are commonly assessed using singleton growth and birth weight reference charts. This practice has led to a significant number of twins labelled as small for gestational age (SGA), causing unnecessary interventions and increased risk of iatrogenic preterm birth. However, the use of twin-specific charts remains controversial. This study aims to assess whether twin-specific estimated fetal weight (EFW) and birth weight (BW) charts are more predictive of adverse outcomes compared to singleton charts. Centiles of EFW and BW were calculated using previously published singleton and twin charts. Categorical data were compared using Chi-square or McNemar tests. The study included 1740 twin pregnancies, with the following perinatal adverse outcomes recorded: perinatal death, preterm birth <34 weeks, hypertensive disorders of pregnancy (HDP) and admissions to the neonatal unit (NNU). Twin-specific charts identified prenatally and postnatally a smaller proportion of infants as SGA compared to singleton charts. However, twin charts showed a higher percentage of adverse neonatal outcomes in SGA infants than singleton charts. For example, perinatal death (SGA 7.2% vs. appropriate for gestational age (AGA) 2%, p < 0.0001), preterm birth <34 weeks (SGA 42.1% vs. AGA 16.4%, p < 0.0001), HDP (SGA 21.2% vs. AGA 13.5%, p = 0.015) and NNU admissions (SGA 69% vs. AGA 24%, p < 0.0001), when compared to singleton charts (perinatal death: SGA 2% vs. AGA 1%, p = 0.029), preterm birth <34 weeks: (SGA 20.6% vs. AGA 17.4%, p = 0.020), NNU admission: (SGA 34.5% vs. AGA 23.9%, p < 0.000). There was no significant association between HDP and SGA using the singleton charts (p = 0.696). In SGA infants, according to the twin charts, the incidence of abnormal umbilical artery Doppler was significantly more common than in SGA using the singleton chart (27.0% vs. 8.1%, p < 0.001). In conclusion, singleton charts misclassify a large number of twins as at risk of fetal growth restriction. The evidence suggests that the following twin-specific charts could reduce unnecessary medical interventions prenatally and postnatally.

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Maternal Lipidomic Signatures in Relation to Spontaneous Preterm Birth and Large-For-Gestational Age Neonates

10.21203/rs.3.rs-138617/v1 ◽

2021 ◽

Author(s):

Max Aung ◽

Pahriya Ashrap ◽

Deborah Watkins ◽

Bhramar Mukherjee ◽

Zaira Rosario ◽

...

Keyword(s):

Fatty Acids ◽

Preterm Birth ◽

Free Fatty Acids ◽

Gestational Age ◽

Pregnancy Outcomes ◽

Lipid Analysis ◽

Lipid Classes ◽

Large For Gestational Age ◽

Spontaneous Preterm Birth ◽

Increased Risk

Abstract Background: Lipidome-wide metabolites may be useful biomarkers of pregnancy outcomes. We sought to characterize maternal lipidomic signatures associated with preterm birth and neonatal anthropometric parameters. Methods: Plasma samples were collected 24-28 weeks gestation, and lipidomic profiling was quantified using high-performance liquid chromatography tandem mass spectrometry. Lipid metabolites were analyzed individually and as whole lipid classes and subgroups based on degree of hydrocarbon chain saturation. Associations were estimated using linear and logistic regression.Results: After false discovery adjustment (q<0.15), four plasmenyl-phosphatidylethanolamines and three free fatty acids associated with increased risk for spontaneous preterm birth. Five phosphatidylinositols, two phosphatidylglycerols, and one phosphatidic acid were associated with large for gestational age neonates. The saturated plasmenyl-phosphatidylethanolamines held the association with increased risk for spontaneous preterm birth. Both the mono- and poly-unsaturated free fatty acids held the association for increased risk for spontaneous preterm birth. Mono- and poly-unsaturated phosphatidylinositols were associated with large for gestational age neonates. Whole lipid classes (plasmenyl-phophatidylcholines and plasmenyl-phosphatidylethanolamines) were associated with increased risk for large for gestational age at delivery.Conclusions: This study provides evidence that finer omics-scale analysis of the maternal lipidome may be more informative biomarkers of pregnancy outcomes compared to whole class level lipid analysis.

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Pulse Oximetry Values in Very Preterm infants Asymtomatic at 34-36 weeks post menstrual age.

10.22541/au.160726775.54268285/v1 ◽

2020 ◽

Author(s):

Ignacio Oyarzún ◽

Marcela Diaz ◽

Paulina Toso ◽

Alejandra Zamorano ◽

Soledad Montes ◽

...

Keyword(s):

Pulse Oximetry ◽

Preterm Infants ◽

Premature Infants ◽

Gestational Age ◽

Oxygen Therapy ◽

Healthy Children ◽

Multicentric Study ◽

Very Preterm Infants ◽

Very Preterm ◽

Postmenstrual Age

Background: Oxygen supplementation is an important component for preterm infants neonatal care. Pulse oximetry (SpO2) is essential to guide oxygen therapy. Evidence on SpO2 values in premature infants previous to discharge is limited. Objectives: To establish SpO2 values in asymptomatic premature infants at 34, 35, and 36 weeks postmenstrual age (PMA). Methods: Longitudinal, multicentric study. From May 2018 to May 2019 premature infants born ≤32 weeks gestational age, from three level III NICUs in Santiago, Chile (altitude 579mt), were enrolled. Healthy children without current apnea of prematurity were included. Continuous SpO2 was obtained with Masimo-Radical 7/8 (USA), averaging time 2-4 seconds. Results: 101 SpO2 recordings (n = 44, 33 and 24 at 34, 35 and 36 weeks PMA respectively) from 62 infants. Twenty eight (45%) male, median (range) gestational age at birth 30 (26-32) weeks, median (range) birth weight 1480 (785-2700) g. Oximetry variables for total recordings: mean SpO2, median (range) 96.9 (93.3-99.3); minimum SpO2, median (range) 74 (51-89); time of SpO2 <90%, median (range) 2% (0-10.6%); time of SpO2 <80%, median (range) 0.1% (0-1.3%); desaturation event by ≥4% (DI4) ≥ 0 and ≥ 10 seconds per sample hour, median (range) 45.2 (5.2-115) and median (range) 15 (3.5-62.5) respectively; desaturation event <80% (DI80), median (range) 0.58 (0-10.8). We found no differences between SpO2 values at different weeks PMA. Conclusions: We described SpO2 values in very preterm infants, asymptomatic at 34, 35 and 36 weeks PMA. These values could be used as a reference to guide oxygen therapy previous to discharge.

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Prescription opioid use during pregnancy and risk for preterm birth or term low birthweight

Journal of Opioid Management ◽

10.5055/jom.2021.0632 ◽

2021 ◽

Vol 17 (3) ◽

pp. 215-225

Author(s):

Julia D. Interrante, MPH ◽

Stacey L. P. Scroggs, PhD ◽

Carol J. Hogue, PhD ◽

Jan M. Friedman, MD ◽

Jennita Reefhuis, PhD ◽

...

Keyword(s):

Preterm Birth ◽

Gestational Age ◽

Low Birthweight ◽

Opioid Analgesic ◽

Population Based ◽

Prescription Opioid ◽

Opioid Use ◽

Increased Risk ◽

Potential Risks ◽

Prescription Opioid Use

Objective: Examine the relationship between prescription opioid analgesic use during pregnancy and preterm birth or term low birthweight.Design, setting, and participants: We analyzed data from the National Birth Defects Prevention Study, a US multisite, population-based study, for births from 1997 to 2011. We defined exposure as self-reported prescription opioid use between one month before conception and the end of pregnancy, and we dichotomized opioid use duration by ≤7 days and 7 days.Main outcome measures: We examined the association between opioid use and preterm birth (defined as gestational age 37 weeks) and term low birthweight (defined as 2500 g at gestational age ≥37 weeks).Results: Among 10,491 singleton mother/infant pairs, 470 (4.5 percent) reported opioid use. Among women reporting opioid use, 236 (50 percent) used opioids for 7 days; codeine (170, 36 percent) and hydrocodone (163, 35 percent) were the most commonly reported opioids. Opioid use was associated with slightly increased risk for preterm birth [adjusted odds ratio, 1.4; 95 percent confidence interval, 1.0, 1.9], particularly with hydrocodone [1.6; 1.0, 2.6], meperidine [2.5; 1.2, 5.2], or morphine [3.0; 1.5, 6.1] use for any duration; however, opioid use was not significantly associated with term low birthweight.Conclusions: Preterm birth occurred more frequently among infants of women reporting prescription opioid use during pregnancy. However, we could not determine if these risks relate to the drug or to indications for use. Patients who use opioids during pregnancy should be counseled by their practitioners about this and other potential risks associated with opioid use in pregnancy.

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High Fetal Fraction on First Trimester Cell-Free DNA Aneuploidy Screening and Adverse Pregnancy Outcomes

American Journal of Perinatology ◽

10.1055/s-0039-1694005 ◽

2019 ◽

Vol 37 (01) ◽

pp. 008-013 ◽

Cited By ~ 4

Author(s):

Lydia L. Shook ◽

Mark A. Clapp ◽

Penelope S. Roberts ◽

Sarah N. Bernstein ◽

Ilona T. Goldfarb

Keyword(s):

Preterm Birth ◽

Gestational Age ◽

Small For Gestational Age ◽

First Trimester ◽

Hypertensive Disorders Of Pregnancy ◽

Aneuploidy Screening ◽

Hypertensive Disorders ◽

Increased Risk ◽

Adverse Pregnancy ◽

Fetal Fraction

Abstract Objective To test the hypothesis that high fetal fraction (FF) on first trimester cell-free deoxyribonucleic acid (cfDNA) aneuploidy screening is associated with adverse perinatal outcomes. Study Design This is a single-institution retrospective cohort study of women who underwent cfDNA screening at <14 weeks' gestation and delivered a singleton infant between July 2016 and June 2018. Women with abnormal results were excluded. Women with high FF (≥95th percentile) were compared with women with normal FF (5th–95th percentiles). Outcomes investigated were preterm birth, small for gestational age, and hypertensive disorders of pregnancy. Results A total of 2,033 women met inclusion criteria. The mean FF was 10.0%, and FF >16.5% was considered high (n = 102). Women with high FF had a greater chance of delivering a small for gestational age infant <fifth percentile, with an adjusted odds ratio of 2.4 (95% confidence interval: 1.1–4.8, p = 0.039). There was no significant association between high FF and either preterm birth or hypertensive disorders of pregnancy. Conclusion Women with a high FF in the first trimester are at increased risk of delivering a small for gestational age infant <fifth percentile. Further investigation into the clinical implications of a high FF is warranted.

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