12,364 results match your criteria: "Costa Rica; University of Maryland[Affiliation]"

This case report explores the diagnostic challenges in evaluating first-time seizures by highlighting the importance of differentiating between provoked and unprovoked seizures. The patient, a 65-year-old female, experienced her first seizure during a yoga retreat in Costa Rica, influenced by a perfect storm of overlapping factors such as traveler's diarrhea, alcohol consumption, and THC use. Comprehensive evaluation and laboratory assessments revealed an elevated hematocrit and borderline magnesium deficiency.

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We report on an adult male green turtle () feeding on fallen leaves from a terrestrial tree, frangipani (), in the waters in front of Cabuyal-a known sea turtle nesting beach-on the north Pacific coast of Costa Rica. This observation, in conjunction with similar reports worldwide, corroborates that terrestrial leaves may be a common food item for green turtles in areas near mangrove forests or coastal deciduous trees. Our observation also indicates that male turtles may feed during reproductive periods if food is available.

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Article Synopsis
  • - The European Commission tasked the EFSA Panel on Plant Health with assessing the risk of pests related to unrooted cuttings produced in Costa Rica, focusing on both regulated and non-regulated pests.
  • - A total of 22 regulated pest species were identified, including various viruses affecting plants, and were analyzed for potential entry risks and the effectiveness of Costa Rica's risk mitigation strategies.
  • - The evaluation concluded that while the risk of pest contamination varied among those studied, there is a high likelihood (95% certainty) that most unrooted cuttings would be free of the tomato spotted wilt virus, estimating that 9,927 to 10,000 out of 10,000 bags would not carry this pest. *
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The immunization and industrial bleeding of horses are essential stages for producing snake antivenoms. In Costa Rica, the traditional method involves stimulating the antibody response of horses by periodically injecting venoms, collecting hyperimmune plasma over three consecutive bleeding days, and repeating this process every eight weeks. While this method does not cause major physical or hematological issues in horses, the associated stress has not been evaluated.

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Impact of knowledge of HPV positivity on cervical cytology performance in latin america.

J Natl Cancer Inst

November 2024

Early Detection, Prevention & Infections Branch, International Agency for Research on Cancer, Lyon, France.

Background: Cervical cytology is recommended by WHO as a triage option in HPV-based cervical cancer screening programmes. We assessed the performance of cytology to detect CIN3+ without and with knowledge of HPV positivity.

Methods: Women were screened with cytology and HPV across ESTAMPA study centres in Latin America.

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Diversity pattern and antibiotic activity of microbial communities inhabiting a karst cave from Costa Rica.

Microbiology (Reading)

November 2024

Centro Nacional de Innovaciones Biotecnológicas (CENIBiot), CeNAT-CONARE, 1174-1200, San José, Costa Rica.

The studies of cave bacterial communities worldwide have revealed their potential to produce antibiotic molecules. In Costa Rica, ~400 caves have been identified; however, their microbial diversity and biotechnological potential remain unexplored. In this work, we studied the chemical composition and microbial diversity of a Costa Rican cave (known as the Amblipigida cave) located in Puntarenas, Costa Rica.

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Article Synopsis
  • The study simulated how different HPV vaccination strategies affect cervical cancer cases over 85 years, focusing on switching from a 2-dose to a 1-dose program.
  • It utilized two mathematical models to predict the outcomes based on different scenarios, such as introducing a 1-dose vaccination and varying age groups for vaccination.
  • Results showed that switching to a 2-dose program in 2036 could yield similar health benefits to starting with a 1-dose vaccine with no effectiveness loss, indicating potential efficiency for countries considering the 1-dose option.
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Background: The Costa Rica HPV Vaccine Trial provided initial evidence that 1 dose of the bivalent human papillomavirus (HPV) vaccine induces stabilizing antibody levels that may provide extended protection against HPV-16/18 infections. We report antibody seropositivity and stability 11 to 16 years after vaccination.

Methods: We invited a random subset of Costa Rica HPV Vaccine Trial participants (n = 398) who had received 3 doses and all women (n = 203) who had received 1 dose at 18 to 25 years of age to follow-up visits 11, 14, and 16 years after vaccination.

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Urban environments increase generalization of hummingbird-plant networks across climate gradients.

Proc Natl Acad Sci U S A

November 2024

Instituto de Biologia, Universidade Federal de Uberlândia, Uberlândia 38402-018, Minas Gerais, Brazil.

Article Synopsis
  • * Urban areas displayed increased generalization in species interactions, demonstrating greater overlap and a link between lower rainfall and more generalized interaction networks.
  • * Urban environments also showed reduced functional trait diversity among hummingbirds and a higher presence of nonnative nectar plants, affecting both species composition and the interactions within these ecological communities.
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Background: Giardia lamblia is an intestinal protozoan estimated to cause ~200 million symptomatic infections annually, mainly in children in low- and middle-income countries associated with intestinal damage, increased permeability, and malabsorption.

Methods And Results: We describe here the epidemiology, incidence, clinical characteristics, and risk factors of acute gastroenteritis episodes (AGE) with G. lamblia detection (GAGE) using a birth cohort of 443 Nicaraguan children followed weekly until 36 months of life.

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sp. nov. (Bothriocephalidae Blanchard, 1849), a cestode parasite of the shorthead lizardfish (Synodontidae) from the Pacific coast of Costa Rica.

J Helminthol

November 2024

Center for Research in Tropical Diseases (CIET), Faculty of Microbiology, University of Costa Rica, 11501-2060 San Pedro de Montes de Oca, San José, Costa Rica.

A new species of bothriocephalid cestode in the genus is described from the intestine of the shorthead lizardfish from the north Pacific coast of Costa Rica. The new species is described based on an integrative taxonomic approach that includes the use of light and scanning electron microscopy, 28S rDNA sequencing, and phylogenetic analysis. sp.

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Silicone mammary implants (SMIs) frequently result in capsular fibrosis, which is marked by the overproduction of fibrous tissue surrounding the implant. This review provides a detailed examination of the molecular and immunological mechanisms driving capsular fibrosis, focusing on the role of foreign body responses (FBRs) and microbial biofilm formation. We investigate how microbial adhesion to implant surfaces and biofilm development contribute to persistent inflammation and fibrotic responses.

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Introduction: water is a crucial component of human health useful for various bodily functions. Despite its importance, previous research has largely overlooked hydration in Latin America, focusing instead on regions with greater access to a variety of food sources. Objective: hence, this study provides comprehensive data on water consumption patterns in this region and analyses the hydration profiles of urban Latin American populations, emphasizing the role of pure water in daily intake.

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The role of the cyclooxygenase-2 pathway in tissue ischemia and revascularization following skeletal muscle injury induced by bothropic snake venom.

Microvasc Res

January 2025

Departamento de Farmacologia, Escola Paulista de Medicina, Universidade Federal de São Paulo, SP, Brazil. Electronic address:

Bothrops asper venom (Bav) contains metalloproteinases that disrupt the microvascular system, impairing muscle tissue regeneration after injury. This study investigated the impact of the cyclooxygenase-2 (COX-2) pathway on vascular injury and revascularization in muscle injuries induced by Bav. Mice were injected with Bav into the gastrocnemius muscle and treated with lumiracoxib, a selective COX-2 inhibitor, 30 min, 2 days, and 6 days post-Bav injection.

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Aims/hypothesis: The diagnosis of type 2 diabetes is increasing in young people worldwide. This study evaluated the frequency and clinical characteristics of young people presenting with type 2 diabetes from the multinational SWEET e.V Registry 2012-2021, including the first years of the COVID-19 pandemic.

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Latin American Natural Product Database (LANaPDB): An Update.

J Chem Inf Model

November 2024

DIFACQUIM Research Group, Department of Pharmacy, School of Chemistry, Universidad Nacional Autónoma de México, Avenida Universidad 3000, Mexico City 04510, Mexico.

Natural product (NP) databases are crucial tools in computer-aided drug design (CADD). Over the past decade, there has been a worldwide effort to assemble information regarding natural products (NPs) isolated and characterized in certain geographical regions. In 2023, it was published LANaPDB, and to our knowledge, this is the first attempt to gather and standardize all the NP databases of Latin America.

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Clutch attendance and call parameters are linked to mating success in a glassfrog with paternal care.

Behav Ecol

October 2024

Division of Behavioural Ecology, Institute of Ecology and Evolution, University of Bern, Wohlenstrasse 50a, CH-3032 Hinterkappelen, Switzerland.

Females of some species improve their reproductive success not only by being choosy and selecting males with certain traits, but also by sequentially mating with multiple males within one reproductive season. However, it is relatively unknown whether females also evaluate parental care during mate choice and, if they do, whether males actively communicate their care status to approaching females. We monitored a natural population of the glassfrog , a species with sequential polyandry and paternal care, to assess the role of parental care and advertisement calling on male mating success.

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Circulating microRNAs associated with bronchodilator response in childhood asthma.

BMC Pulm Med

November 2024

Channing Division of Network Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA.

Background: Bronchodilator response (BDR) is a measure of improvement in airway smooth muscle tone, inhibition of liquid accumulation and mucus section into the lumen in response to short-acting beta-2 agonists that varies among asthmatic patients. MicroRNAs (miRNAs) are well-known post-translational regulators. Identifying miRNAs associated with BDR could lead to a better understanding of the underlying complex pathophysiology.

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Evaluation of Conductive Porous Biobased Composites with Tunable Mechanical Properties for Potential Biological Applications.

ACS Omega

October 2024

Centro de Investigación en Servicios Químicos y Microbiológicos (CEQIATEC), Escuela de Química, Instituto Tecnológico de Costa Rica, Cartago 159-7050, Costa Rica.

Article Synopsis
  • Researchers developed starch-based porous cryogels aimed at tissue engineering, combining materials like κ-carrageenan, PVA, and SbQ.
  • They created a conductive version of the cryogel by oxidizing EDOT to enhance electrical properties, utilizing iron(III) p-toluenesulfonate.
  • Tests showed that varying biopolymer content could effectively tune the cryogel's mechanical properties, with κ-carrageenan enhancing stiffness and PVA acting as a plasticizer, while cross-linking with PVA-SBQ further improved these properties.
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Computational identification and characterization of chitinase 1 and chitinase 2 from neotropical isolates of .

Front Bioinform

October 2024

Laboratorio de Bioinformática Aplicada, Escuela de Ciencias Biológicas, Universidad Nacional de Costa Rica, Heredia, Costa Rica.

Article Synopsis
  • - The study focuses on the genetic analysis of chitinase enzymes from neotropical fungal isolates, which are important for agricultural biological control due to their ability to break down chitin, a component of insect exoskeletons and fungal cell walls.
  • - Researchers examined eight genomes, discovering eleven chitinase 1 genes categorized into two types and highlighting variations particularly in chitinase 1, which may indicate different roles in infection and growth processes.
  • - The findings stress the significance of local fungal genomes in understanding pathogen-host interactions and suggest practical agricultural applications, emphasizing the need for more experimental work to validate these computational insights.
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Effective management of emerging diseases relies on timely pathogen identification and monitoring. The emergence of COVID-19 in December 2019, rapidly evolved into a global pandemic, with millions of cases and deaths reported worldwide. The accumulation of SARS-CoV-2 genomes provided unprecedented opportunities for studying the virus's evolutionary dynamics, understanding the impact of mutations, and identifying emerging Variants of Interest (VOIs) and Variants of Concern (VOCs).

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Coupling between microbial assemblages and environmental drivers along a tropical estuarine gradient.

Sci Total Environ

December 2024

Departamento de Biología, Facultad de Ciencias Marinas y Ambientales, Universidad de Cádiz, Pol. Río San Pedro s/n 11510 Puerto Real, Cádiz, Spain; Instituto Universitario de Investigación Marina (INMAR), Campus Universitario de Puerto Real, Universidad de Cádiz, Pol. Río San Pedro s/n 11510 Puerto Real, Cádiz, Spain.

The change in the community structure of phytoplankton and bacterioplankton, and in the degree of coupling between them as well as the environmental conditions, have substantial impacts on the transfer of energy to higher trophic levels and finally on the fate of organic matter. The microbial community structure, usually described only by the abundance of the different taxonomic or functional groups, can be extended to include other levels of descriptors, like physiological state and single-cell properties. These features play a role in the ecological regulation of microbial communities but are not generally studied as additional descriptors of the community structure.

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MiR-107 and Its Association With House Dust Mite Sensitisation: Implications for Asthma.

Clin Exp Allergy

January 2025

Division of Pediatric Respiratory Medicine, Department of Pediatrics, University of California San Diego, La Jolla, California, USA.

Introduction: MicroRNAs (miRNAs) have been linked to allergic diseases but their effects on sensitisation to allergens in individuals with asthma are unknown. We aimed to identify miRNAs associated with house dust mite (HDM) sensitisation in childhood asthma.

Methods: Serum samples from 1126 children with asthma who participated in the Genetics of Asthma in Costa Rica Study (GACRS) were profiled for 304 miRNAs.

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Background: Adaptation of evidence-based interventions (EBIs) often occurs when implemented in new local contexts and settings. It is unclear, however, during which phase of implementation adaptations are most frequently made and how these changes may impact the fidelity, effectiveness, and sustainability of the EBI. Pediatric Early Warning Systems (PEWS) are EBIs for early identification of deterioration in hospitalized children with cancer.

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