High risk of drug-resistant tuberculosis in IGRA-negative contacts: should preventive treatment be considered?

Purpose: Deciding whether to provide preventive treatment to contacts of individuals with multidrug-resistant (MDR) tuberculosis is complex.

Methods: We present the diagnostic pathways, clinical course and outcome of tuberculosis treatment in eight siblings from a single family. Tuberculosis disease was diagnosed by Mycobacterium tuberculosis culture and molecular detection of M.

Lateral hypothalamic area high-frequency deep brain stimulation rescues memory decline in aged rat: behavioral, molecular, and electrophysiological study.

To examine the effect of DBS of the lateral hypothalamic area (LHA) on age-related memory changes, neuronal firing from CA1, oxidative stress, and the expression of Hsp70, BDNF, and synaptophysin. 72 male rats were randomly allocated into 6 equal groups: a) normal young group (8 W), b) sham young group, c) DBS young group, d) normal old group (24 months), e) sham old group and f) DBS old group. Memory tests (passive avoidance and Y maze), oxidative stress markers (MDA, catalase, and GSH) and expression of Nrf2, HO-1, Hsp70, BDNF, and synaptophysin were measured by the end of the experiment.

"Update on pediatric primary liver tumors".

Liver masses are common in children, however primary malignant neoplasms are rare, representing only 1% of all pediatric cancers. Hepatocellular neoplasms are the most common primary liver malignancies and hepatoblastoma (HB) is the most frequently diagnosed. The incidence of HB, which is increasing, is approximately of 2 cases per million in the United States, followed by hepatocellular carcinoma (HCC).

Perceived Burnout Among Underrepresented Minority Physician Assistant/Associate Educators in the United States.

Introduction: There is a keen interest regarding burnout in academic medicine with an existing need for more studies. The priority population were underrepresented physician assistant/associate (PA) educators in the United States. The purpose was to determine external/internal contributors leading to perceived burnout; investigate whether primary/secondary appraisal inform coping strategies; and determine whether there was an existing relationship between demographic factors and emotional exhaustion (EE).

Bone-Induced Her2 Promotes Secondary Metastasis in HR+/Her2- Breast Cancer.

Bone metastases can disseminate to secondary sites and promote breast cancer progression creating additional clinical challenges. The mechanisms contributing to secondary metastasis are barely understood. Here, we evaluate the prediction power of Her2-expressing (Her2E) circulating tumor cells (CTCs) after analyzing over 13,000 CTCs from a cohort of 137 metastatic breast cancer (MBC) patients with initial HR+/Her2- status and employ preclinical models of bone metastasis (BM) to validate the role of Her2E CTCs in multi-organ metastases.

Coping with cognitive decline in older adults with mild cognitive impairment or mild dementia: a scoping review.

Objectives: This scoping review aims to map out the coping strategies among Persons with Mild Cognitive Impairment (PwMCI) and Persons with Mild Dementia (PwMD), identifying the facilitators and the barriers to the use of the strategies.

Method: We conducted a systematic search of peer-reviewed studies in PubMed, CINAHL, EMBASE, and PsycINFO. Under the guidance of the Coping Circumflex Model, we identified coping strategies and then conducted thematic synthesis.

Age-associated alterations in immune and inflammatory responses in captive olive baboons ().

Introduction: Advanced age is a primary risk factor for many chronic diseases and conditions; however, age-related immune dysregulation is not well understood. Animal models, particularly those that resemble human age-related physiological changes, are needed to better understand immunosenescence and to improve health outcomes. Here, we explore the utility of the olive baboon (Papio anubis) in studying age-related changes to the immune system and understanding mechanisms of immunosenescence.

Gameplay and physical activity behaviors in adult video game players.

Introduction: Since the early 2000s, the video game industry has seen extraordinary booms in product development and market growth, with the total number of video game players globally reaching 2.69 billion by the end of 2020. Despite the rapid growth of the industry, there is little recent data investigating the time adult video game players spend sedentary playing video games and the time they spent engaged in physical activity.

Bone measurements interact with phenotypic measures in canine Duchenne muscular dystrophy.

Duchenne muscular dystrophy (DMD) is an X-linked muscle disease with weakness, loss of ambulation, and premature death. DMD patients have reduced bone health, including decreased femur length (FL), density, and fractures. The mouse model has paradoxically greater FL, density, and strength, positively correlating with muscle mass.

Education Research: Trends of Neurology Clerkships in the United States Amidst a Global Pandemic.

Background And Objectives: To report a 2022 survey of US medical school neurology clerkship directors (CDs) and to compare the results with those of similar surveys conducted in 2005, 2012, and 2017.

Methods: An American Academy of Neurology (AAN) Consortium of Neurology Clerkship Directors (CNCD) workgroup developed the survey sent to all neurology CDs listed in the AAN CNCD database. Comparisons were made with 2005, 2012, and 2017 surveys.

Elucidating early proton irradiation effects in metal halide perovskites via photoluminescence spectroscopy.

Metal halide perovskite (MHP) solar cells are promising aerospace power sources given their potential as inexpensive, lightweight, and resilient solar electricity generators. Herein, the intrinsic radiation tolerance of unencapsulated methylammonium lead iodide/chloride (CHNHPbICl) films was isolated. Spatially resolved photoluminescence (PL) spectroscopy and confocal microscopy revealed the fundamental defect physics through optical changes as films were irradiated with 4.

Revisiting phosphoregulation of Cdc25C during M-phase induction.

Cdc25C undergoes a sudden and substantial gel mobility shift at M-phase onset, correlating with abrupt activation of both Cdc25C and Cdk1 activities. A positive feedback loop between Cdk1 and Cdc25C has been used to explain this hallmark phenomenon. Here, we demonstrate that the M-phase supershift and robust activation of Cdc25C are due to the site-comprehensive phosphorylation of its long intrinsically disordered regulatory domain without requiring Cdk1 or other major mitotic kinase activities.

Immune-checkpoint-inhibitor therapy directed against PD-L1 is tolerated in the heart without manifestation of cardiac inflammation in a preclinical reversible melanoma mouse model.

Immune-checkpoint-inhibitors (ICI) target key regulators of the immune system expressed by cancer cells that mask those from recognition by the immune system. They have improved the outcome for patients with various cancer types, such as melanoma. ICI-based therapy is frequently accompanied by immune-related adverse side effects (IRAEs).

A unique case of extranodal marginal zone lymphoma with synchronous pulmonary and dermatologic manifestations.

An 89-year-old male with a medical history of non-ischemic cardiomyopathy was initially admitted with acute hypoxic respiratory failure attributed to heart failure exacerbation. Aside from progressive dyspnea, a non-pruritic, non-painful rash and constitutional symptoms were reported. Initial work-up was remarkable for normocytic anemia, lymphopenia, mild hypercalcemia, and elevated inflammatory markers.

An agent-based model facilitating stakeholder engagement in management of estuaries along the Texas Gulf Coast (USA).

We describe an agent-based model purposed for social learning, which was developed by stakeholders, with the technical assistance of professional modelers, to facilitate stakeholder involvement in modeling issues related to the development of an adaptive environmental management plan for the Texas Gulf Coast (USA) estuaries. Stakeholders developed the model during six workshops that spanned a three-year period, and used the model to simulate the population dynamics (recruitment, growth, movement, and mortality) of blue crabs () in the Aransas and Copano Bays in response to various freshwater inflow and harvest scenarios. Results of scenarios representing normal, low, and high harvest levels indicated little effect on blue crab abundances, but harvests increased ≈75 % when harvest level was doubled and decreased ≈50 % harvest level was halved.

Rapid Manufacturing Method of Cardiovascular Models for Experimental Flow Analysis.

Physical anatomical models constructed from medical images are valuable research tools for evaluating patient-specific clinical circumstances. For example, 3D models replicating a patient's internal anatomy in the cardiovascular system can be used to validate Computational Fluid Dynamics (CFD) models, which can then be used to identify potential hemodynamic consequences of surgical decisions by providing insight into how blood and vascular tissue mechanics may contribute to disease progression and post-operative complications. Patient-specific models have been described in the literature; however, rapid prototyping models that achieve anatomical accuracy, optical transparency, and thin-walled compliance in a cost and time-effective approach have proven challenging.

Branched-Chain Amino Acid Supplements for Sarcopenia in Liver Cirrhosis: A Systematic Review and Meta-analysis.

Background: Sarcopenia, a key aspect of malnutrition in liver cirrhosis (LC), affects 30-70% of LC patients. Given the inconsistent results from RCTs on branched-chain amino acids (BCAAs) for treating sarcopenia in LC, we conducted a systematic review and meta-analysis to assess the efficacy and safety of BCAAs for sarcopenia management in LC patients.

Methods: A systematic review and meta-analysis synthesizing evidence from RCTs obtained from PubMed, Embase, Cochrane, Scopus, and Web of Science from inception to April 2024.

Insights from social media into public perspectives on investigative genetic genealogy.

Social media sites like X (formerly Twitter) increasingly serve as spaces for the public to discuss controversial topics. Social media can spark extreme viewpoints and spread biased or inaccurate information while simultaneously allowing for debate around policy-relevant topics. The arrest of Joseph J.

Intranasal delivery of metformin using metal-organic framework (MOF)-74-Mg nanocarriers.

Dosage tolerance is one of the translational challenges of using metformin (Met) in brain therapeutics. This paper presents metal-organic framework (MOF)-74-Mg nanocarriers (NCs) for intranasal (IN) delivery of brain-specific agents with a prolonged release time. We confirmed their excellent biocompatibility (5 mg/mL) and intrinsic fluorescence properties (370/500 nm excitation/emission peak) in Neuro-2A cells.

Multidrug-resistant ST11-KL64 hypervirulent with multiple genes isolated from children's blood.

Introduction: Hypervirulent carbapenem-resistant Klebsiella pneumoniae (hv-CRKP) poses an increasing public health risk due to its high treatment difficulty and associated mortality, especially in bone marrow transplant (BMT) patients. The emergence of strains with multiple resistance mechanisms further complicates the management of these infections.

Methods: We isolated and characterized a novel ST11-KL64 hv-CRKP strain from a pediatric bone marrow transplantation patient.