A5013060746- Vector-borne infectious diseases
- Bird parasitology and diseases
- Gastrointestinal motility and disorders
- Viral Infections and Vectors
- Parasite Biology and Host Interactions
- Rabies epidemiology and control
- Turtle Biology and Conservation
- Wildlife Ecology and Conservation
- Dermatology and Skin Diseases
- Gut microbiota and health
- Whipple's Disease and Interleukins
- Immune Cell Function and Interaction
- Helicobacter pylori-related gastroenterology studies
- Parasites and Host Interactions
- Employment, Labor, and Gender Studies
- Amphibian and Reptile Biology
- Avian ecology and behavior
- Mosquito-borne diseases and control
- IL-33, ST2, and ILC Pathways
- Plant and animal studies
- Helminth infection and control
- Child Nutrition and Feeding Issues
- Animal Behavior and Welfare Studies
- Scarabaeidae Beetle Taxonomy and Biogeography
- Wildlife-Road Interactions and Conservation
Fundación Universitaria Internacional del Tropico Américano
2021-2025
Research Institute for Nature and Forest
2023
Instituto de Investigación en Recursos Cinegéticos
2006-2020
University of Castilla-La Mancha
2020
Guyra Paraguay
2018-2020
Universidad Americana
2019
Hospital General de México
2013-2017
Universidad Nacional Autónoma de México
2010-2017
Universidad Nacional de Colombia
2000-2014
Consejo Superior de Investigaciones Científicas
2014
The European Observatory of Wildlife (EOW) as part the ENETWILD project, aims to improve capacity for monitoring wildlife populations, implementing international standards data collection, providing guidance on density estimation, and finally, promote collaborative, open networks develop monitoring, initially focusing terrestrial wild mammals. This report presents estimates species that are widely distributed (wild boar (Sus scrofa), roe deer (Capreolus capreolus), red (Cervus elaphus)) by...
Studies suggest that altered immune activation, manifested by an imbalance in anti- and pro-inflammatory cytokine levels, exists a subgroup of irritable bowel syndrome (IBS) patients. However, similar studies have not been conducted Latin populations. The objective this study was to measure serum levels interleukin (IL)-10 tumor necrosis factor (TNF)-α subjects fulfilling symptom criteria for IBS controls.Volunteers (n=178) from university population Mexico City, participated the study. Of...
La región de la Orinoquía alberga una amplia diversidad biológica y ecosistemas extensos, junto con actividades agropecuarias relevantes como los cultivos palma africana plátano, que contribuyen a economía seguridad alimentaria. Los insectos subfamilia Dryophthorinae representan un reto agrícola debido su impacto ecológico económico, lo resalta importancia estudiarlos para diseñar estrategias manejo favorezcan sostenibilidad recursos biológicos. Entre marzo mayo 2023, se realizaron muestreos...
Studies focused on the epidemiological surveillance of arboviruses that cause potentially zoonotic diseases, such as dengue, Zika, or emerging viruses like West Nile virus (WNV), are critical due to their significant impact public health. Although research these infectious agents is increasing in Colombia, regions remain where presence still unknown. To address this knowledge gap, present study aimed investigate current status WNV circulation wildlife two municipalities department Casanare...
The irritable bowel syndrome (IBS) is a complex disorder in which psychosocial, cultural and biological factors, interact.Recent knowledge the pathophysiology of IBS, seem to combine issues such as low grade inflammation or immune activation dysbiosis that can trigger exacerbate IBS.On other hand, stress mediated through hypothalamic-pituitary-adrenal axis produce motility abnormalities modify microbiota well, with subsequent mucosa stimulation nerve terminals, generating symptoms IBS.Also,...
Background: there has been recent evidence of an alteration in irritable bowel syndrome (IBS) immune regulation, as well variations cytokine polymorphisms.Aims: to determine the frequency IL-10 (-1082G/A) and TNF-α (-308G/A) polymorphisms subjects with IBS Mexico.Methods: volunteers answered Rome II Questionnaire were classified (n = 45) controls 92).The then categorized IBS-D: 22.2 %, IBS-C: 28.9 IBS-A/M: 48.9 %.The polymorphism among groups was compared.Results: no differences between vs....
A total of 315 birds representing 75 species (23 families) from Villavicencio and San Miguel (Meta, Colombia) were examined for haematozoa. Fifty (15.9%) harbored blood parasites. Microfilariae the most common haematozoans encountered, followed by genera Haemoproteus, Plasmodium Trypanosoma. This survey included 15 new host-parasite records 8 that haematozoa first time. The prevalence registered in this research was similar to others recorded Neotropical region, but sharp contrast with...
It is well established that malnutrition affects the immune response and increases susceptibility to parasitic infection. In present study we evaluated some aspects of cellular cytokine network regulate IgE responses, which are important components host defence mechanisms against helminthic parasites in children infected with intestinal helminth Ascaris lumbricoides, differing degrees malnutrition. We found a defective T cell malnourished children, as indicated by diminished levels...
The Neotropics are highly diverse in avian species. Neotropical countries contribute a large part of the estimated diversity haemosporidian parasites reported for planet’s tropical zones. However, sampling is limited and biased, illustrated by only 30% genetic records (barcodes) from non-passerines, most them not linked to nominal This paper aimed perform molecular morphological characterization haemosporidians that infect non-passerine birds Colombia deposited biological collection named...
Birds from the high Andes in National Natural Park Chingaza, Colombia, were surveyed for blood parasites April 2002 and March 2003. Of 136 birds examined, representing 40 species of 14 families, 38 infected with parasites. Parasites genera Leucocytozoon (21.3% prevalence), Plasmodium (8.1%), Hepatozoon (2.9%), Microfilariae (2.9%) Haemoproteus (1.5%) recorded. Twenty five avian this survey examined first time 49 new parasite-host associations identified. The most striking observation study...
Abstract Background Immune activation, increased Toll‐like Receptors ( TLR ) expression, and gut epithelial diffusion of bacterial molecules have been reported in irritable bowel syndrome IBS ). Thus, we sought to relate these factors by analyzing homing (integrin α4β7), intestinal recruiting CCR 5) activation CD 28) phenotypes, the cytokines chemokines concentration peripheral blood T‐lymphocytes stimulated with ‐ligands. Methods Twenty‐one ‐Rome II (1 PI ‐ patients 19 controls were...
Blood samples from 159 birds of the New-world family Tyrannidae (the flycatchers) eastern plains Colombia, were examined for haematozoa parasites, in 1999-2000. Haematozoa detected six 20 species. The overall prevalence was 10.1%. most common parasites microfilariae, followed by Trypanosoma and Plasmodium. highest (9.6%) found Ochre-bellied Flycatcher (Mionectes oleaginea). Mixed infections with more than one genus blood parasite rare encountered low intensity. results this study suggest an...
Ectoparasites, such as ticks, modulate host population dynamics by impacting demographic traits. They transmit infectious agents among their hosts, posing a critical threat to animal and public health. This study aimed characterize analyze the Hyalomma aegyptium infestation on one of its main spur-thighed tortoise, effects traits, determine diversity present in both ticks tortoises Maamora forest (northwestern Morocco). Our results show that 100% were parasitized adult spring, an intensity 4...
Abstract AIM: To determine if there are sex- or age-related differences in the increase skinfold thickness response to mitogen phytohaemagglutinin (PHA) red deer. METHODS: One dose of 250 µg PHA was injected intradermally right side neck, and phosphate buffered saline (PBS) at a second site as control, 110 (51 males 59 females) captive Iberian deer (Cervus elaphus hispanicus), ranging age from 21 months a5 years. Skinfold thicknesses were measured immediately before 72 h following injection....
Abnormal immune regulation and increased intestinal permeability augmenting the passage of bacterial molecules that can activate cells, such as monocytes/macrophages, have been reported in irritable bowel syndrome (IBS). The aim was to compare maturation phenotype monocytes/macrophages (CD14+) from IBS patients controls presence or absence Escherichia coli lipopolysaccharides (LPS), vitro.Mononuclear cells were isolated peripheral blood 20 Rome II-IBS 19 cultured with without LPS for 72...
The genus Haemocystidium was described in 1904 by Castellani and Willey. However, several studies considered it a synonym of the genera Plasmodium or Haemoproteus. Recently, molecular evidence has shown existence monophyletic group that corresponds to Haemocystidium. Here, we further explore clade spp. studying parasites from Testudines. A total 193 individuals belonging six families Testudines were analyzed. samples collected five localities Colombia: Casanare, Vichada, Arauca, Antioquia,...
Abstract AIM: To establish the optimal dose of mitogen phytohaem- agglutinin (PHA) and time for measuring increased skin-fold thickness in red deer following intradermal injection, as an indicator cell-mediated immune response. METHODS: Three doses (10, 50 250 µg) PHA were injected intradermally right side neck, phosphate buffered saline (PBS) was at a fourth site control, 20 captive Iberian (Cervus elaphus hispanicus) hinds. Skin-fold thicknesses measured 0, 12, 24, 36, 48, 60, 72, 84 96 h...
SummaryIn a village of 529 inhabitants in southeastern Mexico, mass treatments using piperazine single-dose, repeated monthly, reduced the ascariasis rate from 28% at first treatment to no detectable infection eighth. Mature worms capable contributing infectivity soil were not seen post-treatment stools after sixth month. It is concluded that eradication human by can be achieved, least closed population.