9,953 results match your criteria: "Louisiana State University System; ursula.white@pbrc.edu.[Affiliation]"

Hereditary multiple exostoses (HME) is a genetic disorder defined by the formation of benign bone tumors known as exostoses, which can lead to chronic pain and functional impairment. This case report details a 57-year-old man with a long-standing history of severe diffuse bone pain attributed to HME. Despite various treatments, his pain remained poorly controlled until an intrathecal pump with fentanyl was implanted.

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Analyzing sorbitol biosynthesis using a metabolic network flux model of a lichenized strain of the green microalga .

Microbiol Spectr

January 2025

Australian National Herbarium, National Research Collections Australia, NCMI, CSIRO, Canberra, Australia.

a unicellular terrestrial microalga found either free-living or in association with lichenized fungi, protects itself from desiccation by synthesizing and accumulating low-molecular-weight carbohydrates such as sorbitol. The metabolism of this algal species and the interplay of sorbitol biosynthesis with its growth, light absorption, and carbon dioxide fixation are poorly understood. Here, we used a recently available genome assembly for to develop a metabolic flux model and analyze the alga's metabolic capabilities, particularly, for sorbitol biosynthesis.

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colonizes a majority of the human population worldwide and can trigger development of a variety of gastric diseases. Since the bacterium is classified as a carcinogen, elucidation of the characteristics of that influence gastric carcinogenesis is a high priority. To this end, the Mongolian gerbil infection model has proven to be an important tool to study gastric cancer progression.

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Background: Memorizing mounds of facts without having an effective conceptual framework to store them is often an unsuccessful learning style because memory frequently fails without understanding. To accomplish this goal, we offer a framework of ideas called "concept maps". Of the many strategies for metacognition (that is, thinking about thinking), concept mapping is proven to improve meaningful and independent learning.

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Data mining redefines the timeline and geographic spread of cotton leafroll dwarf virus.

Plant Dis

December 2024

USDA Agricultural Research Service, Emerging Pests and Pathogens Research Unit, Ithaca, New York, United States.

Cotton leafroll dwarf virus (CLRDV), a threat to the cotton industry, was first reported in the United States (US) as an emergent pathogen in 2017. Phylogenetic analysis supports the hypothesis that US CLRDV strains are genetically distinct from strains in South America and elsewhere, which is not consistent with the hypothesis that the virus is newly introduced into the country. Using database mining, we evaluated the timeline and geographic distribution of CLRDV in the country.

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Multicenter Clinical Performance Evaluation of the NeuMoDx™ CT/NG Assay 2.0.

Sex Transm Dis

December 2024

QIAGEN Ltd, Hathersage Road, Manchester, M13 0BH, UK.

Background: Given the continued increases in rates of both Chlamydia trachomatis (CT) and Neisseria gonorrhoeae (NG) infection, additional diagnostic assays may be useful in increasing access to testing for these sexually transmitted infections. We evaluated the performance of the NeuMoDx™ CT/NG Assay 2.0 on the NeuMoDx-96 and NeuMoDx-288 Molecular Systems.

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Article Synopsis
  • Atrial fibrillation (AF) is a common heart condition linked to serious complications like stroke and heart failure, and recent studies suggest that an imbalance in gut bacteria may play a significant role, especially in older adults.
  • The review explores how gut microbiota and their byproducts might trigger AF and stresses the need for more research on the connection between gut health and heart function, which is often overlooked.
  • Future studies should focus on the gut microbiome's impact on AF and consider using probiotics or prebiotics as part of treatment, potentially leading to innovative ways to improve patient care by connecting heart and gut health.
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The mediating role of accelerated biological aging in the association between household air pollution from solid cooking fuels and neuropsychiatric disorders.

Ecotoxicol Environ Saf

January 2025

Department of Pathology, Yaan People's Hospital (Yaan Hospital of West China Hospital of Sichuan University), Yaan 625000, China; Department of Pathology, The Affiliated Hospital, Southwest Medical University, Luzhou 646000, China; Precision Medicine Center, Yaan People's Hospital (Yaan Hospital of West China Hospital of Sichuan University), Yaan 625000, China. Electronic address:

Article Synopsis
  • A nationwide cohort study involving 8,550 participants aged 45-80 examined the impact of household air pollution (HAP) from cooking fuels on biological aging and neuropsychiatric diseases over a span of nine years.
  • The study found that consistent use of solid fuels led to a notable increase in biological aging and a higher risk of neurological (25%) and psychiatric disorders (34%).
  • Additionally, leisure activities were found to help reduce the negative effects of biological aging associated with solid fuel use, emphasizing the importance of cleaner fuels and engaging activities for better health outcomes.
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Objective: Smartphone applications (apps) with optical imaging capabilities are transforming the field of physical anthropometry; digital measurements of body size and shape in clinical settings are increasingly feasible. Currently available apps are usually designed around the capture of two-dimensional images that are then transformed with app software to three-dimensional (3D) avatars that can be used for digital anthropometry. The aim of the current study was to compare waist circumference (WC), hip circumference (HC), four other circumferences (right/left upper arm, thigh) and WC/HC evaluated with a novel high-precision 3D smartphone app to ground-truth measurements made with a flexible tape by a trained anthropometrist.

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  • Weedy rice, a close relative of cultivated rice, infests fields globally and reduces crop yields, prompting US farmers to adopt herbicide-resistant (HR) rice varieties to combat this issue.
  • The introduction of HR and hybrid rice cultivars changed the dynamics of crop-weed hybridization, allowing for adaptive introgression and altering selective pressures.
  • A study analyzing 178 weedy rice samples showed geographical shifts and genetic mechanisms in response to herbicide selection, revealing the adaptation of weedy rice through diverse genetic pathways.
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The marine cyanobacterium Synecococcus sp. (CCMP 1334) was grown in a continuous culture system on a 12:12 h light:dark cycle at all combinations of low and high pCO (400 and 1000 ppmv, respectively), nutrient availability (nitrate-limited and nutrient-replete conditions), and temperatures of 21, 24, 28, 32, and 35°C. The maximum nutrient-replete growth rate was ~1.

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Article Synopsis
  • The CAMP study is an ongoing research project aiming to assess the mid- and long-term effects of myocarditis and pericarditis following the Pfizer-BioNTech COVID-19 vaccine in patients under 21.
  • It involves a cohort of at least 200 vaccinated patients and a comparison group of 100 patients with COVID-19 related myocarditis, collecting data over a 5-year span to track health outcomes and complications.
  • As of October 16, 2024, the study has enrolled 273 participants, focusing on heart function, complications, and overall quality of life post-illness.
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Multiple viruses that are highly pathogenic in humans are known to have evolved in bats. How bats tolerate infection with these viruses, however, is poorly understood. As viruses engage in a wide range of interactions with their hosts, it is essential to study bat viruses in a system that resembles their natural environment like bat-derived cellular models.

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Twice-Yearly Lenacapavir for HIV Prevention in Men and Gender-Diverse Persons.

N Engl J Med

November 2024

From the Hope Clinic of the Emory University School of Medicine, Decatur (C.F.K.), and Grady Health System (C.F.K.), and the Division of Infectious Diseases, Emory University-Ponce de Leon Center Clinical Research Site, HIV/AIDS Clinical Trials Unit (V.D.C.), Atlanta - all in Georgia; the Divisions of Pediatric and Adult Infectious Diseases, Johns Hopkins University School of Medicine, Baltimore (A.L.A.); Be Well Medical Center, Berkley, MI (P.B.); the Department of Medicine, University of California, San Diego, San Diego (J.B.), the Department of Medicine, University of California, Los Angeles (J.C.), Ruane Clinical Research (P.J.R.), and Drew Center for AIDS Research, Education, and Services, Charles R. Drew University (L.Y.S.), Los Angeles, Optimus Medical Group/StudyOps, San Francisco (S.H.), Mills Clinical Research, West Hollywood (A.M.), Bios Clinical Research, Palm Springs (P.S.), and Gilead Sciences, Foster City (S.C., R.E., P.W., R.S., L.B.B., C.C.C., M.D., J.M.B.) - all in California; Central Texas Clinical Research, Austin (C. Brinson), and Crofoot MD Clinic and Research Center, Houston (G.C.) - both in Texas; the Department of Infectious Diseases, Louisiana State University Health Sciences Center-New Orleans, New Orleans (M.C.); Howard Brown Health (C.C.) and the Division of Infectious Diseases, University of Illinois Health Sciences (R.M.N.) - both in Chicago; the Division of Infectious Diseases, University of Miami Miller School of Medicine, Miami (S.D.-L.), Therafirst Medical Center, Fort Lauderdale (A.L.), Midway Immunology and Research Center, Fort Pierce (M.R.), and CAN Community Health, Sarasota (T.S.) - all in Florida; the Department of Infectious Diseases, St. Jude Children's Research Hospital, Memphis, TN (A.G.); Washington Health Institute, Washington, DC (T.H.); Fenway Health Medical Clinic, Boston (K.H.M.); Philadelphia FIGHT Community Health Centers-Jonathan Lax Treatment Center, Philadelphia (K.M.); the Department of Medicine, Division of Infectious Diseases, University of Alabama at Birmingham, Birmingham (O.T.V.G.); the Section of Infectious Diseases, Yale School of Medicine, New Haven, CT (O.O.); Centro Ararat, San Juan, Puerto Rico (M.A.-Q.); the HIV Netherlands Australia Thailand Research Collaboration, Thai Red Cross AIDS Research Center and Center of Excellence in Tuberculosis, Faculty of Medicine, Chulalongkorn University (A.A.), and the Institute of HIV Research and Innovation-Pribta Tangerine Clinic (N.P.) - both in Bangkok; Complexo Hospitalar Universitário Professor Edgard Santos, Salvador (C. Brites), Universidade Federal de São Paulo (R.S.D.), Centro de Referência e Treinamento DST/AIDS-SP (J.V.M.), and Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo (R.V.), São Paulo, Fundação Oswaldo Cruz-Instituto Nacional de Infectologia Evandro Chagas, Rio de Janeiro (B.G.), Fundação de Medicina Tropical Doutor Heitor Vieira Dourado, Manaus (M.L.), and the Infectious Diseases Service, Hospital Nossa Senhora da Conceição, Porto Alegre (B.S.) - all in Brazil; Fundación Huésped (P.C.) and Hospital General de Agudos José María Ramos Mejía (M.H.L.) - both in Buenos Aires; Centro de Investigaciones Tecnológicas, Biomédicas y Medioambientales, Universidad Nacional Mayor de San Marcos (J.A.G.-C., J.S.) and Via Libre (J.G.V.), Lima, and Asociación Civil Selva Amazónica, Iquitos (J.C.H.) - all in Peru; Desmond Tutu Health Foundation, Cape Town (R.K.), Wits Reproductive Health and HIV Institute, Faculty of Health Sciences, School of Public Health, University of the Witwatersrand, Johannesburg (N.N.), and the Aurum Institute-Pretoria Clinical Research Site, Pretoria (Z.Z.) - all in South Africa; Centro de Investigacion Farmaceutica Especializada de Occidente, Guadalajara, Mexico (A.P.R.); and Gilead Sciences, Cambridge, United Kingdom (C.D.).

Background: Twice-yearly subcutaneous lenacapavir has been shown to be efficacious for prevention of HIV infection in cisgender women. The efficacy of lenacapavir for preexposure prophylaxis (PrEP) in cisgender men, transgender women, transgender men, and gender-nonbinary persons is unclear.

Methods: In this phase 3, double-blind, randomized, active-controlled trial, we randomly assigned participants in a 2:1 ratio to receive subcutaneous lenacapavir every 26 weeks or daily oral emtricitabine-tenofovir disoproxil fumarate (F/TDF).

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UBR1 Promotes Sex-Dependent ACE2 Ubiquitination in Hypertension.

Hypertension

January 2025

Cardiovascular Center of Excellence (M.E., N.L., C.B., U.P.M., A.N., L.R., A.M., A.S., J.J.G., S.S., J.X., X.Y., C.M.F., E.L.), New Orleans, LA.

Background: Ang-II (angiotensin II) impairs the function of the antihypertensive enzyme ACE2 (angiotensin-converting enzyme 2) by promoting its internalization, ubiquitination, and degradation, thus contributing to hypertension. However, few ACE2 ubiquitination partners have been identified, and their role in hypertension remains unknown.

Methods: Proteomics and bioinformatic analyses were used to identify ACE2 ubiquitination partners in the brain, heart, and kidney of hypertensive C57BL6/J mice of both sexes.

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Article Synopsis
  • Heat stress in poultry affects their ability to manage body temperature, but pequi oil's antioxidant properties may help alleviate these effects.
  • This study examined the impact of pequi oil on laying hens under heat stress by analyzing plasma proteins after feeding two different diets over 84 days.
  • Key proteins linked to inflammation, immune response, and heat adaptation were found to be enhanced in hens fed with pequi oil, suggesting it could improve resilience to heat stress and boost egg production.
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Soil carbon in the world's tidal marshes.

Nat Commun

November 2024

Conservation Science Group, Department of Zoology, University of Cambridge, Cambridge, UK.

Tidal marshes are threatened coastal ecosystems known for their capacity to store large amounts of carbon in their water-logged soils. Accurate quantification and mapping of global tidal marshes soil organic carbon (SOC) stocks is of considerable value to conservation efforts. Here, we used training data from 3710 unique locations, landscape-level environmental drivers and a global tidal marsh extent map to produce a global, spatially explicit map of SOC storage in tidal marshes at 30 m resolution.

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Generalized representative structures for atomistic systems.

J Phys Condens Matter

December 2024

Center for Computing Research, Sandia National Laboratories, Albuquerque, NM 87185, United States of America.

A new method is presented to generate atomic structures that reproduce the essential characteristics of arbitrary material systems, phases, or ensembles. Previous methods allow one to reproduce the essential characteristics (e.g.

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Although immune checkpoint inhibitors (ICIs) have become predominant therapies for cancer, the safety and efficacy of combining ICIs with vaccinations remain areas of needed investigation. As ICIs gain broader clinical application, the relevance of current vaccination guidelines for cancer patients-largely developed in the context of cytotoxic therapies-becomes increasingly uncertain. Although data support the safety of combining inactivated influenza and mRNA SARS-CoV-2 vaccines with ICI therapy, comprehensive data on other infectious disease vaccines remain scarce.

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Despite the revolutionary achievements of chimeric antigen receptor (CAR) T cell therapy in treating cancers, especially leukemia, several key challenges still limit its therapeutic efficacy. Of particular relevance is the relapse of cancer in large part, as a result of exhaustion and short persistence of CAR-T cells in vivo. IL-2-inducible T cell kinase (ITK) is a critical modulator of the strength of T-cell receptor (TCR) signaling, while its role in CAR signaling is unknown.

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Introduction: Barrett esophagus (BE) is the precursor to esophageal adenocarcinoma (EAC). We aimed to assess performance, safety, and tolerability of the EsoGuard (EG) assay on samples collected nonendoscopically with the EsoCheck (EC) device (EG/EC) for BE detection in the intended-use population meeting American College of Gastroenterology guideline criteria (chronic gastroesophageal reflux disease and 3+ additional risk factors).

Methods: We performed a prospective, multicenter study (NCT04293458) to assess EG performance (primary endpoint) on cells collected with EC, for detection of BE and EAC using esophagogastroduodenoscopy (EGD) and biopsies as the comparator.

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Identifying the state of the colloidal self-assembly process is critical to monitoring and controlling the system into desired configurations. Recent application of convolutional neural networks with unsupervised clustering has shown a comparable performance to conventional approaches, in representing and classifying the states of a simulated 2D colloidal batch assembly system. Despite the early success, capturing the subtle differences among similar configurations still presents a challenge.

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