5,611,150 results match your criteria: "USA; National Institute of Standards and Technology[Affiliation]"

Introduction: Hypoalgesic inflammatory bowel disease (IBD) may provide critical insights into human abdominal pain. This condition was previously associated with homozygosity for a polymorphism (rs6795970, A1073V; 1073 val/val ) related to Na v 1.8, a voltage-gated sodium channel preferentially expressed on nociceptors.

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Purpose: Baseline surveys were conducted in Tigray region, Ethiopia, in 2013. Since then, rounds of azithromycin mass drug administration (MDA) have been delivered in-line with international guidance. The purpose of these surveys was to assess trachomatous inflammation-follicular (TF) prevalence following those treatments to enable the region to plan the next steps towards elimination of trachoma.

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Background: Triple-negative breast cancer (TNBC) is a serious disease with limited treatment options. We explored the significance of androgen receptor (AR) expression and tumor-infiltrating lymphocytes (TILs) in predicting neoadjuvant chemotherapy (NAC) resistance in TNBC, hypothesizing that AR/TIL classification using pretreatment biopsies can identify NAC-resistant subgroups and improve the understanding of apocrine differentiation.

Methods: This retrospective study included 156 consecutive patients with TNBC treated with NAC.

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Retinoblastoma and beyond: pediatric orbital mass lesions.

Neuroradiology

December 2024

Department of Neuroradiology, Istituto Giannina Gaslini, Genoa, Italy.

Various space occupying lesions can arise in the orbit, ranging from developmental anomalies to malignancies, and many of the diseases occurring in children are different from the pathologies in the adult population. As the clinical presentation is frequently nonspecific, radiologic evaluation is essential for lesion detection and characterization as well as patient management. While orbital masses may in some cases involve multiple compartments, a simple compartmental approach is the key for the diagnosis on imaging studies, and MRI is the modality of choice.

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Purpose: Moyamoya disease (MMD) is a rare cerebrovascular disorder characterized by the narrowing of arteries at the brain's base. While cerebral angiography is the gold standard for diagnosis, high-resolution vessel wall magnetic resonance imaging (VW-MRI) has recently emerged as a non-invasive diagnostic tool. This systematic review aims to provide insights into the role of VW-MRI in enhancing the diagnosis and management of MMD.

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Arterial hypertension and increased atherogenic index of plasma (AIP) are strong predictors of cardiovascular risk associated in individuals with obesity both in adults and children. Thus, we aimed to explore the relationship between AIP and systolic ambulatory blood pressure index (sABPI) with left ventricular geometry pattern in obese children. In this cross-sectional study, a total of 129 obese children (BMI greater or equal to the 95th percentile for age and sex) were examined.

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Annotation of RxLR Effectors in Oomycete Genomes.

Methods Mol Biol

January 2025

Horticultural Crops Disease and Pest Management Research Unit, United States Department of Agriculture-Agricultural Research Service, Corvallis, OR, USA.

Pathogens have evolved effector proteins to suppress host immunity and facilitate plant infections. RxLR effectors are small, secreted effector proteins with conserved RxLR and dEER amino acid motifs at the N terminus and highly variable C termini and are commonly found in oomycete species. We provide computational approaches to annotate RxLR candidate effector genes in a genome assembly in FASTA format with an available GFF file.

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Fluorescence In Situ Hybridization Protocol for Visualization of Oomycetes In Vitro and In Planta.

Methods Mol Biol

January 2025

United States Department of Agriculture, Agricultural Research Service, Foreign Disease/Weed Science Research Unit, Frederick, MD, USA.

Fluorescence in situ hybridization enables the visualization of organisms in the environment without having to culture them. Here, we describe a FISH protocol to visualize oomycete structures (mycelia, sporangiophores, sporangia, and oospores) directly as well as from colonized plant material. The protocol utilizes organic compounds with low toxicities and does not require a permeabilization step.

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Molecular genetic tools such as CRISPR-Cas gene editing systems are invaluable for understanding gene and protein function and revealing the details of a pathogen's life and disease cycles. Here we present protocols for genome editing in Phytophthora infestans, an oomycete with global importance as a pathogen of potato and tomato. Using a vector system that expresses variants of Cas12a from Lachnospiraceae bacterium and its guide RNA from a unified transcript, we first present a method for editing genes through the non-homologous end-joining (NHEJ) pathway.

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Transcriptional regulation allows cells to execute developmental programs, maintain homeostasis, and respond to intra- and extracellular signals. Central to these processes are promoters, which in eukaryotes are sequences upstream of genes that bind transcription factors (TFs) and which recruit RNA polymerase to initiate mRNA synthesis. Valuable tools for studying promoters include reporter genes, which can be used to indicate when and where genes are activated.

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Introduction: Medication regimen complexity may be an important risk factor for adverse outcomes in older adults with heart failure. However, increasing complexity is often necessary when prescribing guideline-directed medical therapy at the time of a heart failure hospitalization. We sought to determine whether increased medication regimen complexity following a heart failure hospitalization was associated with worse post-hospitalization outcomes.

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Neuronal traveling waves form preferred pathways using synaptic plasticity.

J Comput Neurosci

December 2024

Department of Physics, Drexel University, 3141 Chestnut Street, Philadelphia, 19104, PA, USA.

Traveling waves of neuronal spiking activity are commonly observed across the brain, but their intrinsic function is still a matter of investigation. Experiments suggest that they may be valuable in the consolidation of memory or learning, indicating that consideration of traveling waves in the presence of plasticity might be important. A possible outcome of this consideration is that the synaptic pathways, necessary for the propagation of these waves, will be modified by the waves themselves.

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Seroprevalence of Naegleria fowleri in the Houston-Galveston Texas Population.

Parasitol Res

December 2024

Department of Clinical Laboratory Sciences, School of Health Professions, Medical Branch, University of Texas, 301 University Blvd, Galveston, TX, 77555-0128, USA.

Naegleria fowleri is a free-living amoeba and the causative agent of Primary Amebic Meningoencephalitis (PAM), a rare yet almost always fatal disease that primarily affects children. While only 431 PAM cases have been reported worldwide, the southern states of the United States, including Texas, report the highest number of cases. Despite the high mortality of the disease, studies have identified antibodies to N.

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Only 25% of adults meet both aerobic and strength training recommendations for physical activity. Contingency management interventions have been used to increase physical activity; however, they may be cost prohibitive. Intermittently provided incentives lower costs and are effective for various health behaviors.

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Tissue engineering and cartilage transplantation constitute an evolving field in the treatment of osteoarthritis, with therapeutic and clinical promise shown in autologous chondrocyte implantation. The aim of this systematic review is to explore current clinical trials that utilized autologous chondrocyte transplantation (ACT) and assess its efficacy in the treatment of osteoarthritis. PubMed, Ovid MEDLINE, and Google-Scholar (pages 1-20) were searched up until February 2023.

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Unlabelled: This study examines how power training affects estimated bone strength, revealing that females benefit more than males, especially in the upper limbs (radius). These findings highlight the importance of designing sex-specific exercise programs to enhance bone health. Further research is needed to optimize training duration and address site-specific differences.

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Should we implement biomedical interventions like psychopharmaceuticals or brain stimulation that aim to improve morality in society? Since 2008, moral bioenhancement (MBE) has received considerable attention in bioethics, generating wide scholarly disagreement. However, reviews on the subject are few and either outdated or not structured in method. This paper addresses this gap by providing a scoping review of the last 15 years of debate on MBE (from 2008 to 2022).

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Sleep problems are common in children with autism spectrum disorder (ASD), with potential repercussions on neurobehavioral functioning exacerbating socio-communicative impairments and aggressive behaviors. Parent reports are the most used method to assess sleep in pediatric populations and a modified 23-item of Children's Sleep Habits Questionnaire (CSHQ) for ASD has been proposed in the United States. The generalizability of the CSHQ for ASD has yet to be validated across countries, including Italy.

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Can We Improve Geriatrics Recruitment? An Analysis of U.S. Geriatrics Fellowship Programs on X.

J Am Geriatr Soc

December 2024

Brookdale Department of Geriatrics and Palliative Medicine, Icahn School of Medicine at Mount Sinai, New York, New York, USA.

Introduction: The COVID-19 pandemic accelerated the shift from in-person to virtual recruitment, prompting residency and fellowship programs to adopt innovative strategies, such as leveraging social media platforms to attract applicants and enhance visibility. Our aim was to identify and describe the presence of U.S.

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Background: Huntington's disease (HD) is a rare neurodegenerative disorder caused by an expansion of the CAG trinucleotide repeat in the huntingtin gene which encodes the mutant huntingtin protein (mHTT) that is associated with HD-related neuropathophysiology. Noninvasive visualization of mHTT aggregates in the brain, with positron emission tomography (PET), will allow to reliably evaluate the efficacy of therapeutic interventions in HD. This study aimed to assess the radiation burden of [F]CHDI-650, a novel fluorinated mHTT radioligand, in humans based on both in vivo and ex vivo biodistribution in mice and subsequent determination of dosimetry for dosing in humans.

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Utilizing Rhythmic Haptic Cueing in Arm Swing Training to Improve Gait Speed Among Older Adults.

Ann Biomed Eng

December 2024

Department of Mechanical Engineering, The Biorobotics and Biomechanics Lab, University of Maine, 168 College Ave, Orono, ME, 04469, USA.

Purpose: Current gait rehabilitation protocols for older adults typically attempt to effect changes in leg movements, while the role of arm movements is often ignored despite evidence of the neurological coupling of the upper and lower extremities. In the present work, we examine the effectiveness of a novel wearable haptic cueing system that targets arm swing to improve various gait parameters in older adults.

Methods: Twenty participants (  years) were recruited to analyze their gait during normal and fast walking without haptic cueing.

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Differences in Blood and Cerebrospinal Fluid Between Parkinson's Disease and Related Diseases.

Cell Mol Neurobiol

December 2024

Department of Neurosurgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.

It is difficult to distinguish Parkinson's disease (PD) in the early stage from those of various disorders including atypical Parkinson's syndrome (APS), vascular parkinsonism (VP), and even essential tremor (ET), because of the overlap of symptoms. Other, more challenging problems will arise when Parkinson's disease develops into Parkinson's disease dementia (PDD) in the middle and late stages. At this time, the differential diagnosis of PDD and DLB becomes thorny.

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Purpose: Forceful coughing is assumed to be an uncommon etiology for lateral abdominal wall hernias. The literature regarding this topic is very limited and there is a lack of consensus in management, both operative and non-operative. We aim to report our center's experience in repair of lateral abdominal wall hernias secondary to vigorous coughing.

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