11,150 results match your criteria: "Panama; Gorgas Memorial Institute for Health Research[Affiliation]"

Hidden Agony: Foot Pain Linked to Pet Hair Splinter.

Cureus

June 2024

Medicine, Facultad de Medicina, Universidad de Panama, Panama, PAN.

Cutaneous pili migrans is a rare and interesting dermatological condition characterized by embedding a hair or its fragment in the epidermis or superficial dermis, sometimes leading to pain and a serpiginous rash. We present a 28-year-old male who came to the clinic concerned about the sudden onset of pain in his foot over 10 hours. Upon meticulous physical examination, we found a white hair embedded in the skin of the fifth toe of his left foot, which the patient immediately recognized as hair from his dog.

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Article Synopsis
  • Chronic kidney disease (CKD) affects about 1 in 7 adults in the U.S., especially African Americans who are more likely to suffer from it.
  • Scientists discovered that certain changes in DNA can help predict who might get CKD, focusing on specific sites in the DNA.
  • The study created a special score using these DNA changes to see how likely someone is to have CKD and found it works well for African Americans, suggesting it could help in checking kidney health in the future.
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Economic burden of respiratory syncytial virus disease in Latin America: A systematic review.

Hum Vaccin Immunother

December 2024

Health Technology Assessment, Instituto de Efectividad Clínica y Sanitaria (IECS-CONICET), Buenos Aires, Argentina.

This Systematic Review assesses the economic impact of Respiratory Syncytial Virus (RSV) in Latin America and the Caribbean (LAC) in relation to healthcare resource utilization and associated costs. We searched online databases from January 2012 to November 2022 to identify eligible publications. We identified 12 publications that reported direct costs, indirect costs, and resources associated with RSV and its complications.

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A theoretical perspective on grandiose narcissism suggests four forms of it (sanctity, admiration, heroism, rivalry) and states that these forms conduce to different ways of thinking and acting. Guided by this perspective, we examined in a multinational and multicultural study (61 countries; N = 15,039) how narcissism forms are linked to cognitions and behaviors prompted by the COVID-19 pandemic. As expected, differences in cognitions and behaviors across narcissism forms emerged.

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Phylogenetic insights into the Salicaceae: The evolution of willows and beyond.

Mol Phylogenet Evol

October 2024

Biology Centre of the Czech Academy of Sciences, Ceske Budejovice, Czech Republic; Faculty of Science, University of South Bohemia, Ceske Budejovice, Czech Republic.

The Salicaceae includes approximately 54 genera and over 1,400 species with a cosmopolitan distribution. Members of the family are well-known for their diverse secondary plant metabolites, and they play crucial roles in tropical and temperate forest ecosystems. Phylogenetic reconstruction of the Salicaceae has been historically challenging due to the limitations of molecular markers and the extensive history of hybridization and polyploidy within the family.

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The nitrogen isotopes of the organic matter preserved in fossil fish otoliths (ear stones) are a promising tool for reconstructing past environmental changes. We analyzed the N/N ratio (δN) of fossil otolith-bound organic matter in Late Cretaceous fish otoliths (of , and sp.) from three deposits along the US east coast, with two of Campanian (83.

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Isolation of Alpha-Glucosidase Inhibitors from the Panamanian Mangrove Plant (Triana ex Hemsl.) Ducke.

Pharmaceuticals (Basel)

July 2024

Centro de Biodiversidad y Descubrimiento de Drogas, Instituto de Investigaciones Científicas y Servicios de Alta Tecnología (INDICASAT AIP), Edificio 208, Ciudad del Saber, Apartado 0843-01103, Panama.

Panama boasts an expansive mangrove area and stands as one of the most biodiverse countries in America. While mangrove plants have long been utilized in traditional medicine, there are still unstudied species whose potential medicinal applications remain unknown. This study aimed to extract bioactive compounds from (Triana ex Hemsl.

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Epidemiology and Genetic Characterization of RNA Virus in () spp. Isolates from Cutaneous Leishmaniasis Endemic Areas in Panama.

Microorganisms

June 2024

Departamento de Investigación en Parasitología, Instituto de Conmemorativo Gorgas de Estudios de la Salud, Panama 0816-02593, Panama.

Article Synopsis
  • Researchers studied 100 isolates from patients with cutaneous leishmaniasis in Panama collected between 2016 and 2022, identifying multiple Leishmania species and genetic variants present in the samples.
  • The study found the presence of the Leishmania RNA virus 1 (LRV-1) in 9% of the isolates, with specific cases recorded in various locations.
  • Phylogenetic analysis indicated that the LRV-1 isolates were mostly of genotype A, suggesting a connection between the virus's distribution and the geographical areas where the host species are found.
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Phase angle (PhA), a marker of nutritional status obtained by bioelectrical impedance analysis (BIA), is associated with the integrity of cell membranes. Damage to muscle fiber membranes can impact muscle strength, which is related to adverse outcomes in adults with advanced chronic kidney disease (CKD). The main objective of this study was to determine the usefulness of the PhA in identifying muscle weakness in candidates for kidney transplants (KTs).

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: The primary objective of this study was to assess the adherence of Ngäbe-Buglé women to WHO-recommended prenatal practices. The secondary objective was to compare adherence levels between women who received prenatal education from official medical providers and those educated through traditional or community-based sources within Ngäbe-Buglé communities. : An eight-question survey was verbally administered to 137 Ngäbe-Buglé women at clinics set up by the non-profit NGO Floating Doctors in eight communities.

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Article Synopsis
  • * Various reactions led to the development of new structures, including isomerization and rearrangement into longibornane and himachalane derivatives, with the molecular characterization performed using advanced techniques like NMR and mass spectrometry.
  • * The resulting longipinene derivatives displayed moderate to high insecticidal activity against certain insects and showed significant root growth inhibition in certain plants, along with notable ixocidal and nematicidal effects.
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Background: The COVID-19 pandemic has highlighted a correlation between cardiac complications and elevated cardiac biomarkers, which are linked to poorer clinical outcomes.

Objective: This study aims to determine the clinical impact of cardiac biomarkers in COVID-19 patients in Latin America.

Subjects And Methods: The CARDIO COVID 19-20 Registry is a multicenter observational study across 44 hospitals in Latin America and the Caribbean.

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The UPPS-P Impulsive Behavior Model and the various psychometric instruments developed and validated based on this model are well established in clinical and research settings. However, evidence regarding the psychometric validity, reliability, and equivalence across multiple countries of residence, languages, or gender identities, including gender-diverse individuals, is lacking to date. Using data from the International Sex Survey ( = 82,243), confirmatory factor analyses and measurement invariance analyses were performed on the preestablished five-factor structure of the 20-item short version of the UPPS-P Impulsive Behavior Scale to examine whether (a) psychometric validity and reliability and (b) psychometric equivalence hold across 34 country-of-residence-related, 22 language-related, and three gender-identity-related groups.

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Sleep is associated with many costs, but is also important to survival, with a lack of sleep impairing cognitive function and increasing mortality. Sleeping in groups could alleviate sleep-associated costs, or could introduce new costs if social sleeping disrupts sleep. Working with the Jamaican fruit bat (Artibeus jamaicensis), we aimed to: (1) describe sleep architecture, (2) assess how sleeping in groups affects sleep, and (3) quantify total sleep time and identify rapid eye movement (REM) sleep using behavioral indicators that complement physiological evidence of sleep.

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Global atmospheric methane uptake by upland tree woody surfaces.

Nature

July 2024

Environmental Change Institute, School of Geography and the Environment, University of Oxford, Oxford, UK.

Methane is an important greenhouse gas, but the role of trees in the methane budget remains uncertain. Although it has been shown that wetland and some upland trees can emit soil-derived methane at the stem base, it has also been suggested that upland trees can serve as a net sink for atmospheric methane. Here we examine in situ woody surface methane exchange of upland tropical, temperate and boreal forest trees.

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Acute respiratory distress syndrome at high altitude: Considerations for diagnosis and treatment.

Med Intensiva (Engl Ed)

September 2024

Médico Especialista en Medicina Intensiva, Huesca, Spain; Comité de Expertos de Medicina Crítica en la Altitud, Federación Panamericana e Ibérica de Medicina Crítica y Terapia Intensiva (FEPIMCTI), Panama City, Panama. Electronic address:

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Chemical variation is a critical aspect affecting performance among co-occurring plants. High chemical variation in metabolites with direct effects on insect herbivores supports chemical niche partitioning, and it can reduce the number of herbivores shared by co-occurring plant species. In contrast, low intraspecific variation in metabolites with indirect effects, such as induced volatile organic compounds (VOCs), may improve the attraction of specialist predators or parasitoids as they show high specificity to insect herbivores.

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Background: Plasmodium vivax is the main causative agent of malaria in Panama. However, the prevalence of asymptomatic infections in the different endemic regions remains unknown. Understanding the epidemiological behavior of asymptomatic infections is essential for the elimination of malaria.

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Puerto Rico harbors a diverse vertebrate fauna with high levels of endemism. However, while several books for vertebrate diversity and local checklists for birds have been published, checklists of amphibians, reptiles, and bats are lacking or nonexistent at both local and regional scales. In this study, we documented the amphibian, reptile, and bat faunas at Mata de Plátano Field Station and Nature Reserve, in Arecibo, Puerto Rico.

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Article Synopsis
  • Sporotrichosis is a skin infection caused by fungi from the Sporothrix genus, impacting humans and various warm-blooded animals, especially cats.
  • A literature review highlighted the prevalence of sporotrichosis transmitted by cats in Latin America, particularly in Brazil, where the disease is endemic.
  • In Latin America, domestic cats are the primary carriers of sporotrichosis, with notable cases reported across several countries including Argentina, Chile, and Colombia.
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Tropical root responses to global changes: A synthesis.

Glob Chang Biol

July 2024

Department of Ecosystem Science and Sustainability, Colorado State University, Fort Collins, Colorado, USA.

Tropical ecosystems face escalating global change. These shifts can disrupt tropical forests' carbon (C) balance and impact root dynamics. Since roots perform essential functions such as resource acquisition and tissue protection, root responses can inform about the strategies and vulnerabilities of ecosystems facing present and future global changes.

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Multiple factors influence infant and child neurodevelopment in low resource settings. In offspring of participants in the preconception maternal nutrition trial, Women First (WF), we examined the impact of providing a preconception (Arm 1) or prenatal (Arm 2) nutrient supplement (compared to controls, Arm 3) on neurodevelopmental outcomes at 24 months; predictors of neurodevelopment scores; and associations of infant anthropometrics with neurodevelopmental scores. Follow-up visits for anthropometry were conducted at 6-, 12-, 18- and 24-month of age.

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Prey often rely on multiple defences against predators, such as flight speed, attack deflection from vital body parts, or unpleasant taste, but our understanding on how often and why they are co-exhibited remains limited. Eudaminae skipper butterflies use fast flight and mechanical defences (hindwing tails), but whether they use other defences like unpalatability (consumption deterrence) and how these defences interact have not been assessed. We tested the palatability of 12 abundant Eudaminae species in Peru, using training and feeding experiments with domestic chicks.

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  • Nearly all oviparous vertebrates lay eggs in either aquatic or terrestrial environments, each presenting unique challenges and opportunities for embryo development.
  • Research on 13 species of Central and South American treefrogs shows that flexible egg-laying behaviors and the ability for eggs to develop in both environments support the transition from aquatic to terrestrial reproduction.
  • Findings indicate species that reproduce exclusively on land tend to have larger eggs, and behavioral adaptations in egg-laying are likely the first steps toward evolving terrestrial reproduction, rather than changes in egg size.
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Recent genomic analyses have highlighted the prevalence of speciation with gene flow in many taxa and have underscored the importance of accounting for these reticulate evolutionary processes when constructing species trees and generating parameter estimates. This is especially important for deepening our understanding of speciation in the sea where fast-moving ocean currents, expanses of deep water, and periodic episodes of sea level rise and fall act as soft and temporary allopatric barriers that facilitate both divergence and secondary contact. Under these conditions, gene flow is not expected to cease completely while contemporary distributions are expected to differ from historical ones.

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