5,654 results match your criteria: "" University of Buenos Aires[Affiliation]"

Purpose: Obstructive sleep apnea (OSA) affects up to 936 million adults globally and is linked to significant health risks, including neurocognitive impairment, cardiovascular diseases, and metabolic conditions. Despite its prevalence, OSA remains largely underdiagnosed. This study aimed to enhance OSA awareness and risk assessment using the STOP-Bang questionnaire in a telemedicine format.

View Article and Find Full Text PDF

Functional connectivity holds promise as a biomarker of schizophrenia. Yet, the high dimensionality of predictive models trained on functional connectomes, combined with small sample sizes in clinical research, increases the risk of overfitting. Recently, low-dimensional representations of the connectome such as macroscale cortical gradients and gradient dispersion have been proposed, with studies noting consistent gradient and dispersion differences in psychiatric conditions.

View Article and Find Full Text PDF

Grasslands cover approximately a third of the Earth's land surface and account for about a third of terrestrial carbon storage. Yet, we lack strong predictive models of grassland plant biomass, the primary source of carbon in grasslands. This lack of predictive ability may arise from the assumption of linear relationships between plant biomass and the environment and an underestimation of interactions of environmental variables.

View Article and Find Full Text PDF

Trends in BMI in Latin American Children With New-Onset Type 1 Diabetes Over 3 Years.

Clin Diabetes

August 2024

Pharmacology Department, Instituto Univervistario CEMIC, Buenos Aires, Argentina.

This article reports the trends in BMI score (-BMI) and their correlation with insulin dose and A1C in children with new-onset type 1 diabetes from several Latin American centers. The researchers observed a significant increase in the -BMI from type 1 diabetes onset through the 3-year follow-up, with insulin dose as a significant covariate. Although insulin doses steadily increased, their impact on A1C did not appear to be optimal (mean A1C 8.

View Article and Find Full Text PDF

Background: There is substantial evidence that smokers present a less favorable response following regenerative periodontal surgery. However, there are no reports to date on the response to regenerative procedures in chronic cannabis smokers. In the present case study, we discuss the periodontal outcomes of reparative and regenerative surgical treatment in a cannabis consumer patient with generalized stage III grade C periodontitis.

View Article and Find Full Text PDF

Despite significant progress in understanding the factors influencing cognitive function in Parkinson's disease (PD), there is a notable gap in data representation for the Latinx population. This study aims to evaluate the contributors to and disparities in cognitive performance among Latinx patients with PD. A retrospective analysis was conducted based on cross-sectional data encompassing demographic, environmental, motor, and non-motor disease characteristics from the Latin American Research Consortium on the Genetics of PD (LARGE-PD) and the Parkinson's Progression Markers Initiative (PPMI) cohorts.

View Article and Find Full Text PDF

Background: Lower urinary tract disease is a common clinical condition in dogs, usually presenting with dysuria, pollakiuria and haematuria. Diabetes mellitus is a predisposing factor for urinary tract infection in both humans and dogs and does not necessarily present with clinical signs. In this case report, we describe for the first time a case of cystitis glandularis in a dog with diabetes mellitus, associated with Escherichia coli urinary tract infection.

View Article and Find Full Text PDF

Objective: The purpose of this study was to present a newly designed 3D-printed personalized model (3D PPM) of a radiofrequency needle guide with a maxillary fixation for gasserian ganglion (GG) puncture.

Methods: Implementation of 3D CT-guided radiofrequency therapy of the GG with and without use of 3D PPM was analyzed. The following parameters were assessed: radiation time, dose area product, air kerma reference point, pain severity during the puncture needle insertion, prosopalgia regression degree (according to visual analog scale) and the severity of facial numbness (according to the Barrow Neurological Institute scale) in the early postoperative period, and postpuncture complications.

View Article and Find Full Text PDF

Lack of context modulation in human single neuron responses in the medial temporal lobe.

Cell Rep

January 2025

Centre for Systems Neuroscience, University of Leicester, Leicester, UK; Hospital Del Mar Medical Research Institute (IMIM), Barcelona, Spain; Institució Catalana de Recerca I Estudis Avançats (ICREA), Barcelona, Spain; Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China. Electronic address:

In subjects implanted with intracranial electrodes, we use two different stories involving the same person (or place) to evaluate whether and to what extent context modulates human single-neuron responses. Nearly all neurons (97% during encoding and 100% during recall) initially responding to a person/place do not modulate their response with context. Likewise, nearly none (<1%) of the initially non-responsive neurons show conjunctive coding, responding to particular persons/places in a particular context during the tasks.

View Article and Find Full Text PDF

Background And Objective: Lipedema is a commonly underdiagnosed chronic condition. This study aimed to evaluate liposuction techniques for lipedema by conducting a systematic review and presenting our experience. A case series study and a comprehensive review were conducted.

View Article and Find Full Text PDF

Introduction: During revision surgery for the management of patients presenting with long-bone upper extremity nonunion, it is crucial to rule out fracture-related infection (FRI). This is especially true if there are clinical signs suggestive of FRI, or if there is a history of prior FRI, open wound fracture, or surgery. This study aimed to determine the efficacy of frozen section analysis (FSA) in providing real-time diagnosis of FRI in patients with upper-limb long-bone nonunion undergoing revision surgery.

View Article and Find Full Text PDF

Objective: The goal of a decompressive craniectomy (DC) or a hinge craniotomy (HC), is to treat intracranial hypertension and reduce mortality. Traditionally, the decompression procedure has been performed with cranial bone removal. However, decompression and repositioning the cranial bone, named HC, has been presented as an alternative for certain cases.

View Article and Find Full Text PDF

Background: Stressful life events (SLEs) are associated with increased risk of depression or anxiety. Coping mechanisms may moderate this relationship but little is known on this topic in young people or in Latin America.

Aim: To investigate whether coping strategies predict odds of depression and/or anxiety and moderate the relationship between SLEs and depression and/or anxiety in young people in Peru, Lima and Bogotá.

View Article and Find Full Text PDF

The goal of this paper is to explore a set of epistemological and ontological issues regarding the historical and philosophical role of placebos in the contested history of antidepressants. Starting from an account of the dual nature of the placebo as both an epistemic and a therapeutic tool, and against the background of the heated debates on the efficacy of second-generation antidepressants, I propose two related arguments. First, I argue that placebos as controls played a crucial but paradoxical role in the rise of so-called evidence-based approaches to depression.

View Article and Find Full Text PDF

Dipole Potential of Monolayers with Biologically Relevant Lipid Compositions.

Molecules

December 2024

Coimbra Chemistry Center, Institute of Molecular Sciences (CQC-IMS), University of Coimbra, 3004-535 Coimbra, Portugal.

The membrane dipole potential that arises from the interfacial water and constitutive dipolar groups of lipid molecules modulates the interaction of amphiphiles and proteins with membranes. Consequently, its determination for lipid mixtures resembling the existing diversity in biological membranes is very relevant. In this work, the dipole potentials of monolayers, formed at the air-water interface, from pure or mixed lipids (1-palmitoyl-2-oleoyl--glycero-3-phosphocholine (POPC), 1-palmitoyl-2-oleoyl--glycero-3-phosphoethanolamine (POPE), 1-palmitoyl-2-oleoyl--glycero-3-phosphatidyserine (POPS), sphingomyelin (SpM) and cholesterol) were measured and correlated with the mean area per lipid.

View Article and Find Full Text PDF

Understanding the role of environment in associative learning of nicotine-induced place preference conditioning in zebrafish.

Prog Neuropsychopharmacol Biol Psychiatry

January 2025

Department of Physiology and Institute of Physiology and Biophysics, School of Medicine, University of Buenos Aires, Buenos Aires, Argentina. Electronic address:

Environmental enrichment (EE) is a well-known strategy in animal behavior to improve the welfare and health of animals in captivity. EE provides animals with stimulating and engaging environments that promote natural behaviors, cognitive stimulation and stress reduction. EE turns out to be an important strategy to increase the validity and reproducibility of behavioral data.

View Article and Find Full Text PDF

Thyroid surgery under nerve auto-fluorescence & artificial intelligence tissue identification software guidance.

Langenbecks Arch Surg

January 2025

Department of General Surgery, Sanatorio Otamendi & Miroli (Otamendi & Miroli Hospital), University of Buenos Aires, Buenos Aires, Argentina.

Thyroid cancer is a common malignancy that requires comprehensive clinical evaluation prior to adequate surgical management. Over the last three decades thyroid surgery has tripled and is considered one of the most commonly performed procedures in general surgery. These procedures are associated with potential postoperative complications with significant deterioration in the patient's quality of life.

View Article and Find Full Text PDF

Optical Coherence Tomography Angiography findings in Syphilitic Outer Retinitis.

Retin Cases Brief Rep

December 2024

Department of Ophthalmology, Hospital de Clínicas, University of Buenos Aires, Buenos Aires, Argentina.

Purpose: to report optical coherence tomography angiography findings in syphilitic outer retinopathy, a singular clinical manifestation of ocular syphilis.

Methods: case report.

Results: Multimodal imaging including optical coherence tomography angiography was performed in a patient presenting syphilitic outer retinopathy.

View Article and Find Full Text PDF

Mild therapeutic hypothermia after cardiac arrest: effect on survival with good neurological outcome outside of randomised controlled trials: A registry-based analysis.

Eur J Anaesthesiol

February 2025

From the Department of Neurosurgery, University of Buenos Aires School of Medicine (FZ), Department of Critical Care, Clínica Sagrada Familia (MR) and Department of Critical Care, Hospital Eva Perón de Merlo, Buenos Aires Province, Argentina (FZ, WV).

View Article and Find Full Text PDF

Unveiling Inequities: Racial Disparities in Risk-Reducing Mastectomy for Breast Cancer Prevention.

Clin Breast Cancer

December 2024

Division of Plastic Surgery, Department of Surgery, Yale School of Medicine, New Haven, CT. Electronic address:

Background: Risk-reducing mastectomy (RRM) significantly lowers breast cancer risk as a preventive surgery. While racial disparities in breast cancer treatment are well-documented, research on racial differences in the utilization and outcomes of RRM is limited.

Methods: We retrospectively analyzed the American College of Surgeons National Surgical Quality Improvement Program (2008-2022) to identify women who underwent RRM.

View Article and Find Full Text PDF

Exploring coach and parent transformational leadership and their associations with social identity in adolescents.

Psychol Sport Exerc

December 2024

Department of Social Psychology, Faculty of Psychology and Speech Therapy, University of Valencia, Avd. Blasco Ibañez 21, 46010, Valencia, Spain. Electronic address:

The main objective of this study was to explore the associations between the transformational leadership of coaches and parents and adolescent athletes' social identity and examine the roles of gender and the stage of adolescence in these relationships. Furthermore, this study aimed to provide empirical evidence on measurement invariance across gender and the adolescent stage in the adapted Spanish version of the Social Identity Questionnaire for Sport (SIQS). The sample consisted of 656 athletes (299 males and 357 females) from 12 to 18 years old (M = 15.

View Article and Find Full Text PDF

Background: The aim of this study was to investigate the survival of and in decaying wild boar tissue and assess their freezing tolerance in experimentally infected animals.

Methods: The present study was conducted in Buenos Aires City, Argentina during the 2018-2019 period. Two wild boars were used, one infected with 20,000 muscle larvae (ML) of and the other with .

View Article and Find Full Text PDF

Different whole-brain computational models have been recently developed to investigate hypotheses related to brain mechanisms. Among these, the Dynamic Mean Field (DMF) model is particularly attractive, combining a biophysically realistic model that is scaled up via a mean-field approach and multimodal imaging data. However, an important barrier to the widespread usage of the DMF model is that current implementations are computationally expensive, supporting only simulations on brain parcellations that consider less than 100 brain regions.

View Article and Find Full Text PDF

Structural inequality, the uneven distribution of resources and opportunities, influences health outcomes. However, the biological embedding of structural inequality in aging and dementia, especially among underrepresented populations, is unclear. We examined the association between structural inequality (country-level and state-level Gini indices) and brain volume and connectivity in 2,135 healthy controls, and individuals with Alzheimer's disease and frontotemporal lobe degeneration from Latin America and the United States.

View Article and Find Full Text PDF