12,147 results match your criteria: "LSU & LSU AgCenter[Affiliation]"

A unique presentation of subcutaneous infection: A case report of a diagnostic challenge.

Med Mycol Case Rep

December 2024

School of Medicine, Universidad San Francisco de Quito, Diego de Robles S/N, Quito, 170901, Ecuador.

Introduction: is a yeast-like anamorphic rare fungus commonly found in tropical areas. This case report is the first one located in South America.

Case Report: A 67-year-old patient presented with a 5-year history of right foot pain attributed to foot trauma while at sea 5 years prior.

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Article Synopsis
  • A new species of smut fungus, Urocystis heteropogonis, was identified in Pakistan, infecting the grass Heteropogon contortus.
  • Morphologically, it has larger spore balls and different infection patterns compared to other Urocystis species, with detailed spore measurements provided.
  • Phylogenetic analyses confirmed its uniqueness, suggesting further research is necessary to understand its ecological and agricultural impacts.
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sp. nov.: a novel yeast isolated from subtropical regions in Japan.

Int J Syst Evol Microbiol

November 2024

Biological Resource Center, National Institute of Technology and Evaluation (NBRC), 2-5-8 Kazusakamatari, Kisarazu, Chiba 292-0818, Japan.

Seven yeast strains, NBRC 11072, NBRC 11076, NBRC 11078, NBRC 11080, NBRC 116645, NBRC 116646 and NBRC 116647, were isolated from the subtropical regions of Japan. The seven strains share identical nucleotide sequences in the D1/D2 domains of the large subunit (LSU) rRNA gene and internal transcribed spacer (ITS) regions. Six strains (NBRC 11072, NBRC 11076, NBRC 11078, NBRC 11080, NBRC 116645 and NBRC 116646) share identical mitochondrial cytochrome c oxidase subunit II (COX II) sequences as well, while NBRC 116647 differs from them by one substitution in this region.

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  • Pulmonary arterial hypertension (PAH) is a severe lung condition increasingly linked to methamphetamine use, and this study investigates trends and demographics of PAH patients with and without the drug.
  • Data from national healthcare databases covering 2008-2020 revealed a notable 9.2-fold rise in hospitalization rates for PAH patients who also used methamphetamine, with a majority being middle-aged male, White, low-income individuals primarily from Western and Southern US regions.
  • The findings indicate a significant correlation between methamphetamine use and increased PAH hospitalizations, with the prevalence among users being 32 times higher than non-users, particularly among males and those aged 41-64.
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  • - A new fungus species, referred to as sp. nov., was discovered on dead palm fruits in Satun Province, southern Thailand, and shows morphological similarities to an existing genus.
  • - The study involved extensive morphological investigations and multigene sequence analyses, including various ribosomal DNA genes, to classify the fungus accurately.
  • - Findings confirmed that sp. nov. belongs to the Morosphaeriaceae family and is closely related to marine species, supporting its classification as a new species based on distinct morphological and molecular characteristics.
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The profile of hypercalcaemia in hospitalized patients in India seems to be changing. However, studies evaluating the profile of hypercalcaemia in hospitalized settings in India are extremely limited. This prospective study aims to evaluate the clinical and biochemical profile of hospitalized patients with hypercalcaemia from a tertiary care centre in north India.

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  • The genus in question contains only one species, characterized by a unique structure with a central axis and peripheral branches covered in a gelatinous coating, but there is limited molecular data on its phylogenetic relationships.
  • A new population of the freshwater alga has been found in the Fenhe River, China, where researchers collected various physical and chemical water data and performed detailed morphological observations.
  • The study constructed a phylogenetic tree showing a close relationship between the Chinese specimen and one from Norway, revealing divergence timelines that enhance our understanding of the genus's evolution and geographical distribution.
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ACSL3 is a promising therapeutic target for alleviating anxiety and depression in Alzheimer's disease.

Geroscience

November 2024

Department of Neurology, Louisiana State University Health, LSU Health Sciences Center Shreveport, 1501 Kings Hwy, Shreveport, LA, 71103-3932, USA.

Alzheimer's disease (AD), the leading cause of dementia, affects over 55 million people worldwide and is often accompanied by depression and anxiety. Both significantly impact patients' quality of life and impose substantial societal and economic burdens on healthcare systems. Identifying the complex regulatory mechanisms that contribute to the psychological and emotional deficits in AD will provide promising therapeutic targets.

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Objectives: Part 1 of the RUBY trial (NCT03981796) demonstrated improved survival in patients with primary advanced or recurrent endometrial cancer (EC) treated with dostarlimab plus carboplatin-paclitaxel versus placebo plus carboplatin-paclitaxel. Here, we examine additional efficacy and safety data from patients with mismatch repair deficient/microsatellite instability-high (dMMR/MSI-H) EC in the RUBY trial.

Methods: Patients were randomized 1:1 to dostarlimab 500 mg or placebo plus carboplatin-paclitaxel every 3 weeks for 6 cycles followed by dostarlimab or placebo every 6 weeks for up to 3 years.

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Individuals with substance misuse and substance use disorder (SUD) experience especially high rates of elevated anxiety, including anxiety disorders, and the co-occurrence of these conditions is related to worse treatment outcomes. Given that these patients may have little motivation to change their substance misuse if they use substances to cope with their chronically elevated anxiety, interventions that include components that target motivation may be especially useful. Thus, this paper reviews the recent extant literature on treatments developed specifically for these high-risk patients that include motivational interviewing (MI) techniques to increase motivation for behavioral change.

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This review discusses findings on the use of behavioral nudges in both the Canadian and U.S. military.

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Rotaxanes equipped with actuators hold great potential for developing highly functional molecular machines. Such systems could significantly enhance our ability to study and manipulate biological and artificial membranes. Here, we introduce a rotaxane with a ring featuring two azobenzene photoswitches, which retain their photoreversibility and can be stochastically shuttled along the axle in solution.

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An in vitro study of orthodontic brackets bonded to transition dental zirconia: Shear bond strength, adhesive remnant index, and surface irregularities.

Int Orthod

November 2024

Department of Orthodontics, Louisiana State University Health-New Orleans, School of Dentistry, 1100 Florida Avenue, 70119 New Orleans, LA, USA. Electronic address:

Purpose: Orthodontic treatment often involves bonding brackets to teeth, and the protocols for natural enamel differ from those for prosthodontically restored teeth. With the rising number of adult orthodontic patients, many present with zirconia crowns. This study aimed to evaluate the shear bond strength (SBS) of ceramic orthodontic brackets bonded to transition dental zirconia, which combines 3Y-TZP and 5Y-TZP powders.

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Lung cancer is a leading cause of cancer-related deaths worldwide. Non-small cell lung cancer (NSCLC) is the most prevalent lung cancer subtype. Ciclopirox olamine (CPX), an off-patent fungicide, has been identified as a new anticancer agent.

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The advanced glycation end products (AGEs) Webinar was co-hosted by Diabetes Technology Society and Kitalys Institute on August 8, 2024, with the goal of reviewing progress made in the measurement and use of AGEs in clinical practice. Meeting topics included (1) AGEs as predictors of diabetic nephropathy (DKD), (2) hemoglobin glycation index (HGI) and the glycation gap (GG), (3) formation and structure of AGEs, (4) AGEs as a risk factor of cardiovascular disease (CVD), and (5) approaches to limit or prevent AGE formation.

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First Report of Leaf Spot Caused by on in Guangdong, China.

Plant Dis

November 2024

Guangzhou University of Chinese Medicine, Research Center of Chinese Herbal Resource Science and Engineering, School of Pharmaceutical Sciences, Guangzhou, Guangdong, China.

Article Synopsis
  • Benth. is an important source of patchouli oil, used in various fields like traditional medicine and cosmetics, but faced a significant leaf spot disease outbreak in Guangdong, China, in 2022, affecting a large area with a high incidence rate.
  • The disease symptoms began with circular spots on leaves, which expanded and merged over time, leading to visible leaf damage and eventual loss.
  • Mycological analysis of infected leaves revealed distinct fungal isolates that were pathogenic, and tests confirmed that the conidia infection method could reproduce the disease in healthy seedlings, indicating the need for monitoring and management strategies.
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Weathering influences the ice nucleation activity of microplastics.

Nat Commun

November 2024

Cain Department of Chemical Engineering, Louisiana State University, Baton Rouge, LA, 70803, USA.

Microplastics are being increasingly detected in the atmosphere at altitudes relevant to mixed-phase cloud formation. However, the extent to which microplastics, along with their dynamic surface properties resulting from environmental weathering, could influence atmospheric microphysical processes remains largely unexplored. Here, through a series of ice nucleation experiments and droplet freezing assays, we highlight the capability of model polyethylene microplastics to induce heterogeneous ice nucleation via immersion freezing under atmospherically relevant conditions.

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  • Children's socioeconomic status (SES) impacts intrinsic resting-state brain function, influencing cognitive processes as children develop.
  • Research using multivariate pattern analysis (MVPA) on resting-state electroencephalography (rsEEG) reveals unique associations between specific neural frequencies and aspects of SES, including income and maternal education, as well as cognitive outcomes like vocabulary and working memory.
  • The findings suggest that alpha, gamma, and theta frequencies are differentially linked to SES factors and cognitive abilities, providing insights into how SES shapes neural and cognitive development in children aged 8-15.
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sp. nov. is described from decaying wood submerged in a freshwater stream in Taiwan.

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Additions to the genus (Dothideomycetes); Three novel species and a new host record, based on morphology and phylogeny.

MycoKeys

October 2024

Engineering and Research Center for Southwest Biopharmaceutical Resource of National Education Ministry of China, Guizhou University, Guiyang, 550025, Guizhou Province, China.

During a survey of microfungi associated with forest plants, four specimens related to were collected from decaying wood in Guizhou, Hainan and Yunnan Provinces, China. species have sexual and asexual forms. They are commonly found as saprophytes on decaying wood and have been reported as disease-causing pathogens in humans as well.

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Establishing an Interactive Sequence Database for Shiitake Cultivar Identification.

J Basic Microbiol

January 2025

Department of Biomedical Science and Environment Biology, Kaohsiung Medical University, Kaohsiung, Taiwan (ROC).

Shiitake mushrooms (Lentinula edodes) hold significant cultural and economic value, particularly in Asia where they are extensively cultivated. The diversification of shiitake cultivars, driven by the need to adapt to various climatic conditions and cultivation methods, has resulted in over 200 distinct cultivars. Reliable identification of these cultivars is crucial for breeding, intellectual property protection, and effective genetic resource management.

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X-ray grating interferometry allows for the simultaneous acquisition of attenuation, differential-phase contrast, and dark-field images, resulting from X-ray attenuation, refraction, and small-angle scattering, respectively. The modulated phase grating (MPG) interferometer is a recently developed grating interferometry system capable of generating a directly resolvable interference pattern using a relatively large period grating envelope function that is sampled at a pitch that is small enough that X-ray spatial coherence can be achieved by using a microfocus X-ray source or G0 grating. We present the theory of the MPG interferometry system for a 2-dimensional staggered grating, derived using Fourier optics, and we compare the theoretical predictions with experiments we have performed with a microfocus X-ray system at Pennington Biomedical Research Center, LSU.

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Article Synopsis
  • * The yeast strains demonstrated resilience, growing in high concentrations of sucrose, salt, and extreme temperatures, and showed significant inhibition of mycotoxigenic species that affect dates, with inhibition percentages between 43.6% and 70.3%.
  • * The strains produced volatile compounds that effectively inhibited fungal growth and sporulation, indicating their potential as a safe and eco-friendly alternative to synthetic fungicides for protecting stored dates.
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During a survey of saprobic fungal niches in Southwestern China, eighteen ascomycetous collections of (Nigrogranaceae, Pleosporales, Dothideomycetes) were found on dead branches of medicinal plants. These taxa were characterized and identified based on morphological and culture characteristics, and phylogenetic analyses of a combined the internal transcribed spacer region of rDNA (ITS), nuclear large subunit rDNA (28S, LSU), RNA polymerase second-largest subunit (rpb2), nuclear small subunit rDNA (18S, SSU), and translation elongation factor 1-alpha () sequence dataset also confirmed their placement. As a result, four novel species, namely , , and were described.

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