Browsing Salud by Title
Now showing items 4012-4026 of 4026
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Walking and cycling as active transportation, and obesity factors in adolescents from eight countries
(2022-08-30)Background: Evidence has shown that active transportation decreases obesity rates, but considering walking or cycling as separate modes could provide additional information on the health benefts in adolescents. This study ... -
Wastewater-based epidemiology of enteric viruses and surveillance of acute gastrointestinal illness outbreaks in a resource-limited region
(2021)Acute gastrointestinal illness (AGI) continues to be an important cause of morbidity and mortality among all ages. This study applied the principles ofwastewater-based epidemiology for the preventive identification of ... -
Welcome to the Atta world: A framework for understanding the effects of leaf‐cutter ants on ecosystem functions
(2019)1. Leaf‐cutter ants are a prominent feature in Neotropical ecosystems, but a comprehensive assessment of their effects on ecosystem functions is lacking. We reviewed the literature and used our own recent findings to ... -
What lies behind the curtain: Cryptic diversity in helminth parasites of human and veterinary importance
(2022)Parasite cryptic species are morphologically indistinguishable but genetically distinct organisms, leading to taxa with unclear species boundaries. Speciation mechanisms such as cospeciation, host colonization, taxon ... -
What’s in a mass
(2021-04)This short essay pretends to make the reader reflect on the concept of biological mass and on the added value that the determination of this molecular property of a protein brings to the interpretation of evolutionary and ... -
Why myotoxin-containing snake venoms possess powerful nucleotidases?
(2013-01-25)The venom of the snake Bothrops asper causes muscle necrosis, pain and inflammation. This venom contains myotoxins which cause an increase in intracellular Ca2+ concentration and release of K+ and ATP from myotubes. ATP ... -
Women's Health in Central America: The Complexity of Issues and the Need to Focus on Indigenous Healthcare
(2013-04)The Central American (CA) isthmus consists of seven countries including Belize, Costa Rica, El Salvador, Guatemala, Honduras, Nicaragua and Panama, some of the poorest countries in the world. Over the past ... -
Women’s participation in pap smear screening in a developing country: evidence for improving health systems
(2021-06-15)Introduction: Every year about 83,000 women are diagnosed with cervical cancer in the Americas. Latin America and the Caribbean (LAC) has one of the highest incidence and mortality rates from cervical cancer in the world. ... -
Wound exudate as a proteomic window to reveal different mechanisms of tissue damage by snake venom toxins
(2009)In light of the complexity of wound tissue, proteomic analysis may not clearly reveal the nature of the wound or the processes involved in healing. However, exudate associated with wounds may provide a “window” on cellular ... -
X-chromosome methylation in manifesting and healthy carriers of dystrophinopathies: concordance of activation ratios among first degree female relatives and skewed inactivation as cause of the affected phenotypes
(1995)The X-chromosome activity states of 11 manifesting carriers of dystrophinopathies, all with normal karyotypes, were estimated by restriction fragment length polymorphism (RFLP)-methylation analysis with the probes M27I3 ... -
X-ray screening seems to reduce gastric cancer mortality by half in a community-controlled trial in Costa Rica
(British Journal of Cancer 97, p. 837 – 843, 2007-10-02)X-ray screening of gastric cancer is broadly used in Japan, although no controlled trial has proved its effectiveness. This study evaluates the impact of an X-ray screening demonstrative intervention to reduce gastric ... -
Zika Virus (ZIKV): A New Emerging Pathogen Transmitted by Aedes Mosquitoes (Diptera: Culicidae) in the Latin American Subcontinent
(2016-03-11)Aedes aegypti and Aedes albopictus (Diptera: Culicidae) are two species of synanthropic mosquitoes that are common in outdoor and indoor domiciliary environments in tropical countries. Their vectorial competence and ... -
Zoonotic Agents in Feral Pigeons (Columba livia) from Costa Rica: Possible Improvements to Diminish Contagion Risks
(2018-01)Most studies on zoonotic agents in pigeons have been conducted in the Palearctic region, but the scarcity of data is notorious in the Neotropical region, where these birds can breed all year around and are in close contact ... -
Zoonotic species of the genus arcobacter in poultry from different regions of Costa Rica
(2015)In recent years, emerging pathogens have received special attention due to their consequences for public health. Given that Arcobacter has been isolated in Costa Rica from commercial meat poultry samples, the aim of this ... -
α-Linolenic acid, Δ6-desaturase gene polymorphism, and the risk of nonfatal myocardial infarction
(2007)Background:Δ6-Desaturase (FADS2) is the rate-limiting step in the polyunsaturated fatty acid (PUFA) biosynthetic pathway. Objective: The aim was to test whether the common deletion [T/-] in the promoter of FADS2 affects ...