260,936 results match your criteria maryland


FAT4 identified as a potential modifier of orofacial cleft laterality.

Genet Epidemiol 2021 Jun 15. Epub 2021 Jun 15.

Department of Human Genetics, Emory University, Atlanta, Georgia, USA.

Orofacial clefts (OFCs) are common (1 in 700 births) congenital malformations that include a cleft lip (CL) and cleft lip and palate (CLP). These OFC subtypes are also heterogeneous themselves, with the CL occurring on the left, right, or both sides of the upper lip. Unilateral CL and CLP have a 2:1 bias towards left-sided clefts, suggesting a nonrandom process. Read More

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Toward a Liver Cell Atlas: Understanding Liver Biology in Health and Disease at Single-Cell Resolution.

Semin Liver Dis 2021 Jun 15. Epub 2021 Jun 15.

Laboratory of Human Carcinogenesis, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland.

Single-cell technologies are revolutionizing our understanding of cellular heterogeneity and functional diversity in health and disease. Here, we review the current knowledge and advances in liver biology using single-cell approaches. We focus on the landscape of the composition and the function of cells in a healthy liver in the context of its spatial organization. Read More

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Incidence and Outcomes of Acute Kidney Injury in COVID-19: A Systematic Review.

Blood Purif 2021 Jun 15:1-14. Epub 2021 Jun 15.

Division of Nephrology, Bone and Mineral Metabolism, University of Kentucky Medical Center, Lexington, Kentucky, USA.

Background And Objectives: The recent worldwide pandemic of COVID-19 has been a serious, multidimensional problem that has left a detrimental worldwide impact on individuals of all ages and several organ systems. The typical manifestation of kidney involvement is acute kidney injury (AKI); however, there is a lack of consensus data regarding AKI epidemiology in COVID-19. This systematic literature review aims to bridge this knowledge gap. Read More

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The inter-agency committee on radiation safety - 30 years of international coordination of radiation protection and safety matters.

J Radiol Prot 2021 Jun 15. Epub 2021 Jun 15.

World Health Organization, Geneve, GE, SWITZERLAND.

The Inter-Agency Committee on Radiation Safety (IACRS) was constituted in 1990, as a forum for collaboration and coordination between international bodies with regards to radiation safety. It consists today of representatives of eight intergovernmental member organizations (EC, FAO, IAEA, ILO, OECD/NEA, PAHO, UNSCEAR and WHO) and five observer non-governmental organizations (ICRP, ICRU, IEC, IRPA and ISO). The IACRS provides a platform for interaction between these relevant international bodies to contribute to a common understanding of the scientific basis and legal framework for the application of the system of radiation protection, towards global harmonization of radiation safety standards. Read More

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Stimulus-Induced Rhythmic or Periodic Intermittent Discharges (SIRPIDs) in patients with triphasic waves and Creutzfeldt-Jakob disease.

Clin Neurophysiol 2021 May 20;132(8):1757-1769. Epub 2021 May 20.

Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA.

Since the term Stimulus-Induced Rhythmic, Periodic, or Ictal Discharges (SIRPIDs) was introduced into the vocabulary of electrophysiologists/neurologists, there has been an ongoing debate about its significance, as well as its correlation with outcomes. SIRPIDs are frequently seen in patients who are critically ill from various causes. The literature reflects the findings of triphasic morphology, with the generalized periodic discharge (GPD) classification in many patients with SIRPIDs: toxic/metabolic encephalopathies, septic, and hypoxemic/hypercapnic encephalopathies, but also sharp periodic complexes in Creutzfeldt-Jakob disease and advanced Alzheimer's disease. Read More

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Basement Membrane Extracellular Matrix Proteins in Pulmonary Vascular and Right Ventricular Remodeling in Pulmonary Hypertension.

Am J Respir Cell Mol Biol 2021 Jun 15. Epub 2021 Jun 15.

Johns Hopkins University School of Medicine, 1500, Division of Pulmonary and Critical Care Medicine, Baltimore, Maryland, United States;

The extracellular matrix (ECM), a highly organized network of structural and non-structural proteins, plays a pivotal role in cellular and tissue homeostasis. Changes in the ECM are critical for normal tissue repair, while dysregulation contributes to aberrant tissue remodeling. Pulmonary arterial hypertension (PAH) is a severe disorder of the pulmonary vasculature characterized by pathologic remodeling of the pulmonary vasculature and right ventricle (RV), increased production and deposition of structural and non-structural proteins, and altered expression of ECM growth factors and proteases. Read More

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Visible-Light Photocatalytic Oxidation of DMSO for RAFT Polymerization.

Photochem Photobiol 2021 Jun 15. Epub 2021 Jun 15.

University of Maryland, Department of Chemistry and Biochemistry, College Park, MD, USA, 20942.

The solvent is an important, yet often forgotten part of a reaction mechanism. Many photochemical polymerizations are carried out using dimethyl sulfoxide (DMSO) as a way to promote the solubility of both the reactants and products, but its reactivity is rarely considered when initiation mechanisms are proposed. Herein, the oxidation of DMSO by an excited state quinone is used to form initiating radicals resulting in the polymerization of methacrylate monomers, and the polymerization can be controlled with the addition of a chain transfer agent. Read More

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Association of cigarette and electronic nicotine delivery systems use with internalizing and externalizing problems among US adults: Findings from wave 3 (2015-2016) of the PATH study.

PLoS One 2021 15;16(6):e0253061. Epub 2021 Jun 15.

Institute for Global Tobacco Control, Department of Health, Behavior and Society, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, United States of America.

Aims: Electronic Nicotine Delivery System (ENDS) use is increasing among US adults. While existing research has demonstrated higher cigarette smoking rates among people with mental health conditions, there is sparse information on the association between ENDS use and mental health such as internalizing and externalizing problems. The aim of this study was to evaluate associations between internalizing and externalizing problems for cigarette only, ENDS only, and dual users, as well as changes in mental health among those groups. Read More

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Covid-19 in end-stage renal disease patients with renal replacement therapies: A systematic review and meta-analysis.

PLoS Negl Trop Dis 2021 Jun 15;15(6):e0009156. Epub 2021 Jun 15.

Department of Preventive and Social Medicine, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand.

Background: The novel coronavirus (COVID-19), caused by SARS-CoV-2, showed various prevalence and case-fatality rates (CFR) among patients with different pre-existing chronic conditions. End-stage renal disease (ESRD) patients with renal replacement therapy (RRT) might have a higher prevalence and CFR due to reduced immune function from uremia and kidney tropism of SARS-CoV-2, but there was a lack of systematic study on the infection and mortality of the SARS-CoV-2 infection in ESRD patients with various RRT.

Methodology/principal Findings: We searched five electronic databases and performed a systematic review and meta-analysis up to June 30, 2020, to evaluate the prevalence and case fatality rate (CFR) of the COVID-19 infection among ESRD patients with RRT. Read More

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Correlation between reported dengue illness history and seropositivity in rural Thailand.

PLoS Negl Trop Dis 2021 Jun 15;15(6):e0009459. Epub 2021 Jun 15.

State University of New York Upstate Medical University, Syracuse, New York, United States of America.

In the latest World Health Organization (WHO) recommendation for Dengvaxia implementation, either serological testing or a person's history of prior dengue illness may be used as supporting evidence to identify dengue virus (DENV)-immune individuals eligible for vaccination, in areas with limited capacity for laboratory confirmation. This analysis aimed to estimate the concordance between self-reported dengue illness histories and seropositivity in a prospective cohort study for dengue virus infection in Kamphaeng Phet province, a dengue-endemic area in northern Thailand. The study enrolled 2,076 subjects from 516 multigenerational families, with a median age of 30. Read More

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Defining Death: Reasonableness and Legitimacy.

J Clin Ethics 2021 ;32(2):109-113

Neurocritical Care, Departments of Neurology/Neurosurgery, MacLean Center for Clinical Ethics, University of Chicago, 5841 S. Maryland Ave|MC 2030, Chicago, Illinois 60637 USA.

The recently published World Brain Death Project aims in alleviating inconsistencies in clinical guidelines and practice in the determination of death by neurologic criteria. However, critics have taken issue with a number of epistemic and metaphysical assertions that critics argue are either false, ad hoc, or confused. In this commentary, I discuss the nature of a definition of death; the plausibility of neurologic criteria as a sensible social, medical, and legal policy; and within a Rawlsian liberal framework, reasons for personal choice or accommodation among neurologic and circulatory definitions. Read More

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January 2021

Seven "Between-the-Lines" Questions All Ethics Consultants Should Continue to Ask.

Authors:
Edmund G Howe

J Clin Ethics 2021 ;32(2):87-96

Programs in Medical Ethics, Uniformed Services University of the Health Sciences, 4301 Jones Bridge Road, Bethesda, Maryland 20814 USA.

Clinical ethics consultants (CECs) must know key moral principles and have adequate psychosocial skills. This is, though, not enough. They must also have and hone "between-the-lines" skills that will change over time. Read More

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January 2021

A Resident-Led Intervention to Increase Initiation of Buprenorphine Maintenance for Hospitalized Patients With Opioid Use Disorder.

J Hosp Med 2021 Jun;16(6):339-344

Department of Pediatrics, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland.

Background: Hospitalized patients with opioid use disorder (OUD) are rarely started on buprenorphine or methadone maintenance despite evidence that these medications reduce all-cause mortality, overdoses, and hospital readmissions.

Objective: To assess whether clinician education and a team of residents and hospitalist attendings waivered to prescribe buprenorphine increased the rate of starting patients with OUD on buprenorphine maintenance.

Design, Setting, And Participants: Quality improvement study conducted at a large, urban, academic hospital in Maryland involving hospitalized patients with OUD on internal medicine resident services. Read More

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Philadelphia Prostate Cancer Genetic Consensus Conference 2019 and implications for military medicine.

Can J Urol 2021 Jun;28(3):10659-10667

Edward Hebert School of Medicine, Uniformed Services University of the Health Sciences, Bethesda, Maryland, USA.

INTRODUCTION The objective of our review is to summarize the 2019 Philadelphia Prostate Cancer Genetic Consensus recommendations and discuss their implications to the US Military Health System.

Materials And Methods: Literature review.

Results: Our fighting force and retired service members will significantly benefit from the Philadelphia Prostate Cancer Genetic Consensus recommendations. Read More

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All For One, Though Not One For All: Team Players In Normal Tissue Radiobiology.

Int J Radiat Biol 2021 Jun 15:1-61. Epub 2021 Jun 15.

Department of Environmental Medicine, University of Rochester Medical Center, 601 Elmwood Avenue, Box EHSC, Rochester NY 14642.

: As part of the special issue on 'Women in Science', this review offers a perspective on past and ongoing work in the field of normal (non-cancer) tissue radiation biology, highlighting the work of many of the leading contributors to this field of research. We discuss some of the hypotheses that have guided investigations, with a focus on some of the critical organs considered dose-limiting with respect to radiation therapy, and speculate on where the field needs to go in the future.: The scope of work that makes up normal tissue radiation biology has and continues to play a pivotal role in the radiation sciences, ensuring the most effective application of radiation in imaging and therapy, as well as contributing to radiation protection efforts. Read More

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Factors Driving Rapid Adoption of Telemedicine in an Academic Orthopedic Surgery Department.

Telemed J E Health 2021 Jun 15. Epub 2021 Jun 15.

Department of Orthopedic Surgery, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA.

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Electronic Health Record-Based Risk Stratification: A Potential Key Ingredient to Achieving Value-Based Care.

Popul Health Manag 2021 Jun 14. Epub 2021 Jun 14.

Department of Health Policy and Management, Center for Population Health IT, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA.

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Photoacid Generators Activated through Sequential Two-Photon Excitation: 1-Sulfonatoxy-2-alkoxyanthraquinone Derivatives.

J Phys Chem A 2021 Jun 15. Epub 2021 Jun 15.

Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland 20742, United States.

Two sulfonate ester derivatives of anthraquinone, 1-tosyloxy-2-methoxy-9,10-anthraquinone () and 1-trifluoromethylsulfonoxy-2-methoxy-9,10-anthraquinone (), were prepared and their ability to produce strong acids upon photoexcitation was examined. It is shown that these compounds generate acid with a yield that increases with light intensity when the applied photon dose is held constant. Additional experiments show that the rate of acid generation increases fourfold when visible light (532 nm) laser pulses are combined with ultraviolet (355 nm) compared with ultraviolet alone. Read More

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Amphiphilic Near-IR-Emitting 3,5-(2-Pyrrolylethenyl)BODIPY Derivatives: Synthesis, Characterization, and Comparison with Other (Hetero)Arylethenyl-Substituted BODIPYs.

J Org Chem 2021 Jun 15. Epub 2021 Jun 15.

Department of Chemistry and Biochemistry, University of Maryland, Baltimore County, 1000 Hilltop Circle, Baltimore 21250, Maryland, United States.

A series of 3,5-(hetero)arylethenyl-substituted BODIPY derivatives have been prepared by Knoevenagel-type condensation of alkyl-substituted BODIPY with the corresponding aldehydes. 2-Pyrrolylethenyl-substituted derivatives feature near-IR emission (λ > 700 nm) with a high fluorescence quantum yield. Both the emission maxima and fluorescence quantum yields are relatively insensitive to solvent polarity, contrary to the corresponding near-IR-emitting 4-(,-dimethylaminophenyl)ethenyl derivatives. Read More

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Association of a Sweetened Beverage Tax With Purchases of Beverages and High-Sugar Foods at Independent Stores in Philadelphia.

JAMA Netw Open 2021 Jun 1;4(6):e2113527. Epub 2021 Jun 1.

Department of Medical Ethics and Health Policy, University of Pennsylvania Perelman School of Medicine, Philadelphia.

Importance: The relationship between a sweetened beverage tax and changes in the prices and purchases of beverages and high-sugar food is understudied in the long term and in small independent food retail stores where sugar-sweetened beverages are among the most commonly purchased items.

Objective: To examine whether a 1.5 cent-per-fluid-ounce excise tax on sugar- and artificially sweetened beverages Philadelphia, Pennsylvania, was associated with sustained changes in beverage prices and purchases, as well as calories purchased from beverages and high-sugar foods, over 2 years at small independent stores. Read More

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Sexual selection and introgression in avian hybrid zones: Spotlight on Manacus.

Integr Comp Biol 2021 Jun 15. Epub 2021 Jun 15.

Behavior, Ecology, Evolution, and Systematics Program, University of Maryland, College Park, MD, USA.

Hybrid zones offer a window into the processes and outcomes of evolution, from species formation or fusion to genomic underpinnings of specific traits and isolating mechanisms. Sexual selection is believed to be an important factor in speciation processes, and hybrid zones present special opportunities to probe its impact. The manakins (Aves, Pipridae) are a promising group in which to study the interplay of sexual selection and natural hybridization: they show substantial variation across the family in the strength of sexual selection they experience, they readily hybridize within and between genera, and they appear to have formed hybrid species, a rare event in birds. Read More

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Mild to moderate COVID-19 illness in adult outpatients: Characteristics, symptoms, and outcomes in the first 4 weeks of illness.

Medicine (Baltimore) 2021 Jun;100(24):e26371

Division of Infectious Diseases.

Abstract: Most patients with coronavirus disease 2019 (COVID-19) have mild to moderate illness not requiring hospitalization. However, no study has detailed the evolution of symptoms in the first month of illness.At our institution, we conducted remote (telephone and video) visits for all adult outpatients diagnosed with COVID-19 within 24 h of a positive nasopharyngeal polymerase chain test for SARS-CoV-2. Read More

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Antibody Levels to Plasmodium falciparum Erythrocyte Membrane Protein 1-DBLγ11 and DBLδ-1 Predict Reduction in Parasite Density.

mSystems 2021 Jun 15:e0034721. Epub 2021 Jun 15.

Molecular and Pathogenesis Biomarkers Section, Laboratory of Malaria Immunology and Vaccinology (LMIV), National Institute of Allergy and Infectious Diseases, National Institutes of Health (NIH), Bethesda, Maryland, USA.

Plasmodium falciparum erythrocyte membrane protein 1 (PfEMP1) is a variant surface antigen family expressed on infected red blood cells that plays a role in immune evasion and mediates adhesion to vascular endothelium. PfEMP1s are potential targets of protective antibodies as suggested by previous seroepidemiology studies. Here, we used previously reported proteomic analyses of PfEMP1s of clinical parasite isolates collected from Malian children to identify targets of immunity. Read More

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Word selection and weight bias.

Obesity (Silver Spring) 2021 Jun 14. Epub 2021 Jun 14.

Center for Human Nutrition, Washington University School of Medicine, St. Louis, Missouri, USA.

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Epilepsy surgery in infants up to 3 months of age: Safety, feasibility, and outcomes: A multicenter, multinational study.

Epilepsia 2021 Jun 14. Epub 2021 Jun 14.

Department of Neurosurgery, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA.

Objective: Drug-resistant epilepsy (DRE) during the first few months of life is challenging and necessitates aggressive treatment, including surgery. Because the most common causes of DRE in infancy are related to extensive developmental anomalies, surgery often entails extensive tissue resections or disconnection. The literature on "ultra-early" epilepsy surgery is sparse, with limited data concerning efficacy controlling the seizures, and safety. Read More

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aPelvic Ring Injury Mortality: Are We Getting Better?

J Orthop Trauma 2021 Jun 14. Epub 2021 Jun 14.

R Adams Cowley Shock Trauma Center, Department of Orthopaedics, University of Maryland School of Medicine, Baltimore, MD, USA University of British Columbia, Department of Orthopaedic Surgery, Vancouver, BC, Canada.

Objectives: To determine if changes in pelvic trauma care and treatment protocols has affected overall mortality rates after pelvic ring injury.

Design: Retrospective chart review.

Setting: Level I trauma center. Read More

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HIF-1α and HIF-2α redundantly promote retinal neovascularization in patients with ischemic retinal disease.

J Clin Invest 2021 Jun;131(12)

Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA.

Therapies targeting VEGF have proven only modestly effective for the treatment of proliferative sickle cell retinopathy (PSR), the leading cause of blindness in patients with sickle cell disease. Here, we shift our attention upstream from the genes that promote retinal neovascularization (NV) to the transcription factors that regulate their expression. We demonstrated increased expression of HIF-1α and HIF-2α in the ischemic inner retina of PSR eyes. Read More

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Brain-gut axis dysfunction in the pathogenesis of traumatic brain injury.

J Clin Invest 2021 Jun;131(12)

Division of Digestive Diseases and Nutrition, National Institute of Diabetes and Digestive and Kidney Diseases, NIH, Bethesda, Maryland, USA.

Traumatic brain injury (TBI) is a chronic and progressive disease, and management requires an understanding of both the primary neurological injury and the secondary sequelae that affect peripheral organs, including the gastrointestinal (GI) tract. The brain-gut axis is composed of bidirectional pathways through which TBI-induced neuroinflammation and neurodegeneration impact gut function. The resulting TBI-induced dysautonomia and systemic inflammation contribute to the secondary GI events, including dysmotility and increased mucosal permeability. Read More

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Novel DIO1 gene mutation acting as phenotype modifier for novel compound heterozygous TPO gene mutations causing congenital hypothyroidism.

Thyroid 2021 Jun 15. Epub 2021 Jun 15.

University of Miami School of Medicine, 12235, Medicine, 1120 NW 14th St, Suite 310F, Miami, Florida, United States, 33136-1015;

A family with congenital hypothyroidism was identified with 2 novel deleterious compound heterozygous thyroid peroxidase (TPO) mutations (c.962C>A, and c.1577C>T). Read More

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Never quit on hills: John M. Graham, Jr. MD, ScD, as mentor.

Am J Med Genet A 2021 Jun 15. Epub 2021 Jun 15.

Medical Genetics Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, Maryland, USA.

John M. Graham, Jr. MD, ScD, pediatrician, Clinical Geneticist and Dysmorphologist, fellow of David Weyhe Smith, one of the founding members of the American College of Medical Genetics, father, grandfather, and perpetually optimistic Dodgers fan, has launched many careers. Read More

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