Publications by authors named "D A Velazquez-Ramirez"
Article Synopsis
- - Trachoma is the leading cause of infectious blindness worldwide, particularly affecting indigenous Mayan populations in Chiapas, Mexico, and is linked to genetic factors that may increase the risk of developing severe cases.
- - A study involving 51 individuals with late-stage trachoma and 102 controls identified specific genetic polymorphisms (SNPs) related to inflammation, particularly in genes like BIRC3 and ABCG2, that correlate with heightened risk of the disease.
- - Key findings indicate that certain alleles, specifically the T allele of rs11807619, the C allele of rs932335, and the D allele of rs4340 in the ACE gene, are significantly associated with increased risk of late-stage tr
Article Synopsis
- Chagas disease is caused by a parasite and is transmitted by triatomine bugs; it poses a significant risk to humans, especially in countries like Mexico where domestic animals, like dogs, can be a source of infection.
- A study tested 296 dogs in two Mexican cities for Chagas disease using methods like quantitative PCR and antibody assays, revealing a low prevalence of infection among dogs (3.4% positivity, with only 0.7% found through DNA testing).
- The findings highlight the importance of dogs in monitoring the disease and the need for better diagnostic tools and surveillance in households to manage Chagas disease effectively.
Introduction: Extrapulmonary tuberculosis (EPTB) is a disease that can affect any organ or tissue. Due to its potential to cause more dangerous sequelae and the barriers to its timely diagnosis, greater clinical awareness of this disease is crucial. This study aimed to identify the factors associated with EPTB in the population of Oaxaca, Mexico.
View Article and Find Full Text PDFFirst report of mixed Trypanosoma cruzi discrete typing units infection in Triatoma phyllosoma in the peri-urban environment of Oaxaca, Mexico.
Rev Soc Bras Med Trop
March 2024
Background: Chagas disease, a zoonosis transmitted mainly by hematophagous insects of the subfamily Triatominae, is caused by Trypanosoma cruzi, classified into six discrete typing units (DTUs: TcI-TcVI and Tcbat).
Methods: Insect vectors were collected from 84 human dwellings in the municipality of Santo Domingo Tehuantepec, Oaxaca, Mexico; 4.76% were infested.
Triatomine bugs are natural vectors of , which causes Chagas disease or American trypanosomiasis. The role of sylvatic triatomine species as vectors of . in Mexico remains to be fully understood.
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