Assessing the potential of native copepods in Guatemala for Aedes vector control.

Background: In this study we examine the feeding efficiency of copepods locally found in Guatemala on first instar Aedes aegypti larvae. Copepods are a potential tool for Aedes vector control that has shown promising results in the laboratory and in community-based field trials.

Methods: Four different copepod species from different habitat types were included in the laboratory assays of this study.

Validation of the Dominican system for measuring early childhood development.

Background: The purpose of the study was to determine the psychometric properties of the Dominican System for Measuring Early Childhood Development (SIMEDID, for its Spanish acronym), to adjust the sequence of item presentation, and to provide age-standardized norms for each item, to enable policy and program managers to make decisions based on specific and structured data.

Methods: After approval from an ethics committee, a total of 948 children from 0 to 60 months participated in this study. Participants were evaluated on four early childhood development domains (gross motor, fine motor, language development, and socio-emotional development).

Acute toxicity and quality of life in prostate cancer patients treated with definitive hypofractionated pelvic radiation therapy: a single-center report.

Background: The objective was to report acute toxicity and quality of life in prostate cancer patients treated with definitive hypofractionated pelvic radiation therapy.

Materials And Methods: Patients were designated candidates for hypofractionated pelvic radiation therapy if biopsy or imaging studies evidenced unfavorable intermediate-risk, high-risk or node-positive disease. Patients were treated using a regimen of 44 Gy to the nodal areas and simultaneous integrated boost of 60 Gy to the prostate in 20 fractions with CBCT-based imaging and volumetric arc therapy (VMAT).

Murine leukemia virus (MLV) P50 protein induces cell transformation via transcriptional regulatory function.

Background: The murine leukemia virus (MLV) has been a powerful model of pathogenesis for the discovery of genes involved in cancer. Its splice donor (SD')-associated retroelement (SDARE) is important for infectivity and tumorigenesis, but the mechanism remains poorly characterized. Here, we show for the first time that P50 protein, which is produced from SDARE, acts as an accessory protein that transregulates transcription and induces cell transformation.

2021 clinical practice guideline for the early detection, diagnosis, treatment, and monitoring of patients with axial spondyloarthritis. Colombian Association of Rheumatology.

Background: Axial Spondyloarthritis is a rheumatic condition affecting young patients with social and occupational consequences. Diagnosis delay is associated with functional impairment and impact on quality of life, requiring a multidisciplinary approach.

Objective: To develop a set of recommendations based on the best available evidence for early detection, diagnosis, treatment and monitoring adult patients with axial spondyloarthritis.

2021 clinical practice guidelines for the diagnosis, treatment, and follow-up of patients with peripheral spondyloarthritis. Colombian Association of Rheumatology.

Background: Peripheral spondyloarthritis is a chronic inflammatory disease in which clinical presentation is related to the presence of arthritis, enthesitis and/or dactylitis. This term is used interchangeably with some of its subtypes such as psoriatic arthritis, reactive arthritis, and undifferentiated spondyloarthritis.

Objective: To develop and formulate a set of specific recommendations based on the best available evidence for the diagnosis, treatment and monitoring of adult patients with peripheral spondyloarthritis.

Long-term testosterone treatment during pregnancy does not alter insulin or glucose profile in a sheep model of polycystic ovary syndrome.

The administration of testosterone to pregnant sheep to resemble fetal programming of the polycystic ovary syndrome could alter other hormones/factors of maternal origin with known effects on fetal growth. Hence, we studied the weekly profile of insulin, progesterone and glucose during a treatment with testosterone propionate given biweekly from weeks 5 to 17 of pregnancy (term at 21 weeks) and checked the outcome of their fetuses at 17 weeks of gestation after C-section. Control dams were only exposed to the vehicle of the hormone.

Microsatellite loci-based distribution of Trypanosoma cruzi genotypes from Chilean chronic Chagas disease patients and Triatoma infestans is concordant with a specific host-parasite association hypothesis.

The objective of this study was to investigate if there is specific host-parasite association in Chilean populations of Trypanosoma cruzi. For this purpose, two groups of parasites were analyzed, one from chronic chagasic patients, and the other from Triatoma infestans triatomines in three regions of the country. The first group consisted of four types of samples: parasites from peripheral blood of non-cardiopathic T.