21 results match your criteria: "University of Texas Health at Houston.[Affiliation]"

Structural birth defects affect 3-4% of all live births and, depending on the type, tend to manifest in a sex-biased manner. Orofacial clefts (OFCs) are the most common craniofacial structural birth defects and are often divided into cleft lip with or without cleft palate (CL/P) and cleft palate only (CP). Previous studies have found sex-specific risks for CL/P, but these risks have yet to be evaluated in CP.

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The purpose of this scoping review is to review the extant literature regarding perinatal health outcomes for women on community supervision in the United States. PubMed, CINAHL, Scopus, PsycINFO, and Public Health were searched for peer-reviewed articles published in the United States from January 1, 1970, to March 7, 2023. After removal of duplicates and review of 1,412 article titles and abstracts, 19 articles were retrieved for full-text review; this yielded 4 studies for inclusion.

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Several studies suggest that crack cocaine users exhibit higher prevalence of both psychiatric and psychosocial problems, with an aggressive pattern of drug use. Nevertheless, few experimental studies attempted to verify the neurotoxicity after crack cocaine exposure, especially when compared with other routes of cocaine administration. This systematic review aimed to verify whether in vitro and/or in vivo crack cocaine exposure is more neurotoxic than cocaine exposure (snorted or injected).

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Background:  Blood transfusions have been associated with surgical complications; however, these studies are not specific to lower extremity (LE) reconstruction. We evaluated the effect of perioperative packed red blood cell (PRBC) transfusions on LE free flap outcomes in trauma patients.

Methods:  Patients undergoing LE free flap reconstruction following acute injuries from 2016 to 2021 were retrospectively analyzed.

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Article Synopsis
  • Long non-coding RNAs (lncRNAs) play crucial roles in regulating lipid metabolism and have been studied in relation to genetic variants and complex traits.
  • This research utilized high-coverage whole-genome sequencing of over 66,000 diverse participants to assess how rare variants in lncRNA genes affect blood lipid levels, using a statistical framework to analyze the associations.
  • The study found 83 lncRNA variants significantly linked to lipid levels, with many being independent of common genetic variations, and replicated a majority of these findings with data from another large cohort.
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Cleft palate (CP) is one of the most common craniofacial birth defects; however, there are relatively few established genetic risk factors associated with its occurrence despite high heritability. Historically, CP has been studied as a single phenotype, although it manifests across a spectrum of defects involving the hard and/or soft palate. We performed a genome-wide association study using transmission disequilibrium tests of 435 case-parent trios to evaluate broad risks for any cleft palate (ACP) (n = 435), and subtype-specific risks for any cleft soft palate (CSP), (n = 259) and any cleft hard palate (CHP) (n = 125).

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Though threat-extinction models continue to inform scientific study of traumatic stress, knowledge of learning and extinction as mechanisms linking exposure to psychopathology remains critically limited among youth. This proof-of-concept study advances the study of threat-extinction in youth by determining feasibility of electrodermal stimulation (EDS), vicarious extinction learning via their parent, and social threat learning in pediatric PTSD (pPTSD). Typically developing (TD) and PTSD-diagnosed youth in 45 mother-child dyads completed an extinction learning paradigm.

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Marginalized communities have been disproportionately affected by COVID-19, including both racial/ethnic minority and sexual minority populations. To date, there has been little research examining the impact of the COVID-19 pandemic at the intersections of marginalized identities. Furthermore, available national data on COVID-19 outcomes may obscure our understanding of region-specific outcomes, particularly in the U.

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Article Synopsis
  • Long non-coding RNAs (lncRNAs) play key roles in regulating biological functions, and new genomic studies allow researchers to explore their connection to complex traits, like blood lipid levels.
  • This research involved high-coverage whole genome sequencing from over 66,000 participants, focusing on the influence of rare variants in 165,375 lncRNA genes on lipid variability.
  • The study found 83 rare lncRNA variant sets linked to blood lipid levels, with many of these associations being independent of common variants, suggesting potential new avenues for therapeutic interventions.
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Article Synopsis
  • - The study investigates how exonic variants (genetic changes within coding regions) are linked to traits (phenotypes) but can show variable effects (penetrance) among different individuals.
  • - Researchers found that mRNA splicing influenced by genetic factors affects the harmfulness of these exonic variants, showing a depletion of pathogenic alleles in highly expressed exons.
  • - By analyzing data from large genomic studies, the authors suggest that certain genetic variants might help mitigate the impact of rare harmful variants, particularly in relation to autism risk.
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Orofacial clefts (OFCs) are the most common craniofacial birth defects and are often categorized into two etiologically distinct groups: cleft lip with or without cleft palate (CL/P) and isolated cleft palate (CP). CP is highly heritable, but there are still relatively few established genetic risk factors associated with its occurrence compared to CL/P. Historically, CP has been studied as a single phenotype despite manifesting across a spectrum of defects involving the hard and/or soft palate.

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Mutations in a diverse set of driver genes increase the fitness of haematopoietic stem cells (HSCs), leading to clonal haematopoiesis. These lesions are precursors for blood cancers, but the basis of their fitness advantage remains largely unknown, partly owing to a paucity of large cohorts in which the clonal expansion rate has been assessed by longitudinal sampling. Here, to circumvent this limitation, we developed a method to infer the expansion rate from data from a single time point.

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Maternal fever in labor: etiologies, consequences, and clinical management.

Am J Obstet Gynecol

May 2023

Department of Obstetrics, Gynecology and Reproductive Sciences, McGovern Medical School, University of Texas Health at Houston, Houston, TX. Electronic address:

Intrapartum fever is common and presents diagnostic and treatment dilemmas for the clinician. True maternal sepsis is rare; only an estimated 1.4% of women with clinical chorioamnionitis at term develop severe sepsis.

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Article Synopsis
  • - Exonic variants are strongly associated with traits, but their harmful effects can vary between individuals, a phenomenon called variable penetrance.
  • - The study suggests that the way mRNA is spliced—controlled by genetic factors—can influence the pathogenic impact of these exonic variants.
  • - Analysis of data shows that common genetic variants affecting splicing may help mitigate the negative effects of rare pathogenic variants, particularly in the context of conditions like autism.
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Urinothorax: an under-reported cause of pleural effusions.

QJM

December 2022

Department of Internal Medicine, Divisions of Pulmonary, Critical Care and Sleep Medicine, McGovern Medical School, The University of Texas Health at Houston, Houston, TX 77030, USA.

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Testicular Germ Cell Tumors: Classification, Pathologic Features, Imaging Findings, and Management.

Radiographics

October 2021

From the Departments of Radiology (V.S.K., D.V.Z., R.A.M.) and Pathology (A.N.), University of Texas Health at San Antonio, 7703 Floyd Curl Dr, San Antonio, TX 78229; Department of Radiology, University of Texas M. D. Anderson Cancer Center, Houston, Tex (D.G., S.R.P.); and Department of Radiology, University of Texas Health at Houston, Houston, Tex (V.T.).

Testicular germ cell tumors (TGCTs) demonstrate a wide variety of histopathologic, genetic, pathogenetic, and immunocytochemical characteristics and various clinical-biologic profiles and prognoses. Most TGCTs arise from an intratubular precursor cell referred to as germ cell neoplasia in situ (GCNIS), which is an embryonic germ cell with the potential to differentiate into a plethora of embryonic and extraembryonic lineages. Advances in pathologic examination and genetics paved the way for the 2016 World Health Organization (WHO) classification system, which recognizes two pathogenetically distinct groups of TGCTs.

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The Impact of Psychiatric Symptoms on Tuberous Sclerosis Complex and Utilization of Mental Health Treatment.

Pediatr Neurol

February 2019

Department of Pediatrics, Division of Medical Genetics, McGovern Medical School, University of Texas Health at Houston, Houston, Texas; University of Texas MD Anderson Cancer Center UTHealth Graduate School of Biomedical Sciences, Houston, Texas. Electronic address:

Background: Tuberous sclerosis complex (TSC) is a multisystem, neurocutaneous disorder with a spectrum of TSC-associated neuropsychiatric disorders. The most common neuropsychiatric manifestations in the pediatric and adult populations are cognitive concerns, depression, and anxiety. Previous research suggests that while 90% of individuals with TSC have some TSC-associated neuropsychiatric disorders features, only 20% receive treatment, leading to a 70% treatment gap.

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The nitric oxide (NO)-cyclic GMP pathway contributes to human stem cell differentiation, but NO free radical production can also damage DNA, necessitating a robust DNA damage response (DDR) to ensure cell survival. How the DDR is affected by differentiation is unclear. Differentiation of stem cells, either inducible pluripotent or embryonic derived, increased residual DNA damage as determined by γ-H2AX and 53BP1 foci, with increased S-phase-specific chromosomal aberration after exposure to DNA-damaging agents, suggesting reduced homologous recombination (HR) repair as supported by the observation of decreased HR-related repair factor foci formation (RAD51 and BRCA1).

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Systematic Review and Meta-Analysis of Bone Marrow-Derived Mononuclear Cells in Animal Models of Ischemic Stroke.

Stroke

June 2016

From the Department of Neurology, McGovern Medical School (F.S.V., A.B.B., S.I.S.), Department of Epidemiology, Human Genetics and Environmental Sciences (M.H.R.), Department of Biostatistics (H.Z.), and Department of Management, Policy and Community Health (P.J.R.), School of Public Health, University of Texas Health at Houston.

Background And Purpose: Bone marrow-derived mononuclear cells (BMMNCs) offer the promise of augmenting poststroke recovery. There is mounting evidence of safety and efficacy of BMMNCs from preclinical studies of ischemic stroke; however, their pooled effects have not been described.

Methods: Using Preferred Reporting Items for Systematic Review and Meta-Analysis guidelines, we conducted a systematic review of preclinical literature for intravenous use of BMMNCs followed by meta-analyses of histological and behavioral outcomes.

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Background: The analysis of circulating microparticles in pregnancy is of revolutionary potential because it represents an in vivo biopsy of active gestational tissues.

Objective: We hypothesized that circulating microparticle signaling will differ in pregnancies that experience spontaneous preterm birth from those delivering at term and that these differences will be evident many weeks in advance of clinical presentation.

Study Design: Utilizing plasma specimens obtained between 10 and 12 weeks' gestation as part of a prospectively collected birth cohort in which pregnancy outcomes are independently validated by 2 board-certified maternal-fetal medicine physicians, 25 singleton cases of spontaneous preterm birth ≤ 34 weeks were matched by maternal age, race, and gestational age of sampling (±2 weeks) with 50 uncomplicated term deliveries.

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The psychostimulant methylphenidate (MPD) is currently the most prescribed drug therapy for attention deficit hyperactivity disorder (ADHD) and is used by students as a cognitive enhancer. The caudate nucleus (CN) is a structure within the motive circuit where MPD exerts its effects, it is known to contain high levels of dopaminergic cells and directly influence motor activity. The objective of this study was to understand the role of CN in response to acute and chronic administration of MPD.

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