Crusted scabies is a severe form of scabies infestation caused by the ectoparasite Sarcoptes scabiei. Risk factors include immunosuppression, neuropathies, and psychiatric disorders. Its management poses important challenges due to its contagius nature.
View Article and Find Full Text PDFBiomol Biomed
March 2024
Marfan syndrome (MFS) is a multisystem genetic disorder with over 3000 mutations described in the fibrillin 1 (FBN1) gene. Like MFS, other connective tissue disorders also require a deeper understanding of the phenotype-genotype relationship due to the complexity of the clinical presentation, where diagnostic criteria often overlap. Our objective was to identify mutations in patients with connective tissue disorders using a genetic multipanel and to analyze the genotype-phenotype associations in a cohort of Mexican patients.
View Article and Find Full Text PDFHigh-density lipoproteins (HDLs) are known to enhance vascular function through different mechanisms, including the delivery of functional lipids to endothelial cells. Therefore, we hypothesized that omega-3 (n-3) eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) content of HDLs would improve the beneficial vascular effects of these lipoproteins. To explore this hypothesis, we performed a placebo-controlled crossover clinical trial in 18 hypertriglyceridemic patients without clinical symptoms of coronary heart disease who received highly purified EPA 460 mg and DHA 380 mg, twice a day for 5 weeks or placebo.
View Article and Find Full Text PDFPharmacogenetic implementation programs are increasingly feasible due to the availability of clinical guidelines for implementation research. The utilization of these resources has been reported with selected drug-gene pairs; however, little is known about how prescribers respond to pharmacogenetic recommendations for statin therapy. We prospectively assessed prescriber interaction with point-of-care clinical decision support (CDS) to guide simvastatin therapy for a diverse cohort of primary care patients enrolled in a clinical pharmacogenetics program.
View Article and Find Full Text PDFIntroduction: About 80-95% of patients infected with the human immunodeficiency virus (HIV) develop skin manifestations, which are markers of the patients’ immune status.
Objective: To describe the dermatologic manifestations and the clinical and sociodemographic factors of hospitalized patients diagnosed with HIV and their correlation with CD4 T-lymphocyte count.
Materials And Methods: We conducted an observational, cross-sectional, and retrospective study of the medical records of 227 adult patients with HIV diagnosis evaluated by dermatology in a hospital in Medellín, Colombia.
Background: In regards to breast cancer (BC), survival or disease-free periods are still compromised mainly in Triple Negative (TN) and HER2 tumors. The participation of estrogen receptor (ER) has been reported as crucial in the signaling pathways, including the NOTCH pathway. The study was aimed to evaluate the expression of NOTCH1 and NOTCH3 in BC and its relationship with the presence of ER, as well as with relapses.
View Article and Find Full Text PDFObjective: Evaluate changes in brain activity of trainees during laparoscopic surgical training from electroencephalographic (EEG) signals in an ecological scenario with few restrictions for the user.
Design: Longitudinal study with two follow-up measurements in the first and last session of a 4-week training with LapSim laparoscopic surgery simulator. Variables analyzed include EEG neuronal activations in theta and alpha bands, tasks performance measures, and subjective measures such as perception of mental workload.
The GreenLight™ MoXy laser fiber has been used since 2010 for benign prostatic hyperplasia procedures. We tested a novel principle to increase the saline irrigation flow rates beyond the current standard of gravity drip (∼22 cc/minutes) within the fiber-attached cooling system to potentially prevent excessive tissue adherence and to eliminate the likelihood of degradation due to abnormal overheating. The objective was to assess differences between the ordinary and active pumping methods with ≥2 times flow rate after conditioning of the laser fiber.
View Article and Find Full Text PDFPolyarteritis nodosa (PAN) is a necrotizing vasculitis. The clinical manifestations are determined by the location of the compromised arteries. Cutaneous PAN can present as nodular lesions similar to erythema nodosum, palpable purpura, livedo reticularis, and ulceration.
View Article and Find Full Text PDFMultiple myeloma can have different clinical manifestations, and not all patients present with classic CRAB component. We describe a 46-year-old woman admitted to our hospital with a complaint of a bluish-to-black discoloration of the second toe that was rapidly progressive and acute kidney injury. We documented a Kappa light chain monoclonal gammopathy, increased presence of plasmacytes in bone marrow aspiration, and multiple lytic bone lesions, which led to a diagnosis of multiple myeloma.
View Article and Find Full Text PDFNutrients
July 2019
(1) Background: the composition of high-density lipoproteins (HDL) becomes altered during the postprandial state, probably affecting their functionality vis-à-vis the endothelium. Since acute coronary syndrome (ACS) in women is frequently associated with endothelial dysfunction, it is likely that HDL are unable to improve artery vasodilation in these patients. Therefore, we characterized HDL from women with ACS in fasting and postprandial conditions.
View Article and Find Full Text PDFMarfan syndrome (MS) is of the most common connective tissue disorders. Although most patients have mutations in the fibrillin-1 gene (FBN1) and more than 1,700 mutations have been described, there are no mutations in less than 10% of patients. Aortic dilation is the most important complication; it involves chronic inflammatory processes and endothelial dysfunction.
View Article and Find Full Text PDFIntroducción. La leishmaniasis cutánea es una enfermedad causada por parásitos del género Leishmania que tiene gran incidencia en Colombia. El diagnóstico y la identificación de la especie infecciosa son factores críticos en el momento de escoger e iniciar el tratamiento.
View Article and Find Full Text PDFBackground: Fresh frozen plasma (FFP) administration may increase the risk of nosocomial infections in parallel with the development of immune modulation. This could be driven by soluble mediators, possibly influencing the in vitro activation of human U937 monocyte cells, in a manner dependent on the age of the donors.
Methods: FFP donors were stratified into groups of 19-30 years, 31-40 years or 41-50 years, and U937 cells were cultured with FFP (alone or plus lipopolysaccharide-LPS) for 24 h.
Introduction: Dengue represents an important public health problem in Colombia. No treatment is available and the vaccine has not been approved in all countries, hence, actions should be strengthened to mitigate its impact through the control of Aedes aegypti, the vector mosquito. In Colombia, surveillance is done using entomological indexes and case notification, which is usually informed late, leading to untimely interventions.
View Article and Find Full Text PDFIntroduction: Subtrochanteric fractures are more difficult to treat than other proximal femoral fractures. The aim of this study was to report the outcomes for patients with subtrochanteric fractures treated using a cephalomedullary nail following open reduction and cerclage wiring versus closed reduction alone, regarding health-related quality of life (HRQoL) and social function.
Materials And Methods: We performed a prospective cohort study including patients aged 60 years or older suffering fragility subtrochanteric fractures of the femur treated with cephalomedullary nails, with a minimum 2-year follow-up.
Despite advances in the management of subtrochanteric fractures, in particular with the use of cephalomedullary nails, outcomes remain worse than other fractures of the proximal femur. Because an anatomic reduction is needed to offer the best results, several methods of reduction, using clamps and wires have been described. Reduction of fractures in elderly patients is especially complicated because of poor bone quality, comorbidities, and unfavorable fracture patterns.
View Article and Find Full Text PDFAccording to architect, Ana Maria Silva Mejia, 'a new era for the design of hospitals in Guatemala has arrived', with a considerable growth in interest around good healthcare facility design. Here, in a slightly adapted version of an article, 'A new methodology for design', first published in the IFHE (International Federation of Hospital Engineering) Digest 2012, she reports on the application of a new methodology designed to optimise efficient use of space, and clinical and other adjacencies, in a district hospital in the City of Zacapa. The system has subsequently been successfully applied to a number of other Guatemalan healthcare facilities.
View Article and Find Full Text PDFBenznidazole is the frontline drug used against Trypanosoma cruzi, the causative agent of Chagas disease. However, treatment failures are often reported. Here, we demonstrate that independently acquired mutations in the gene encoding a mitochondrial nitroreductase (TcNTR) can give rise to distinct drug-resistant clones within a single population.
View Article and Find Full Text PDFObjective: To describe the design of a protocol of intracoronary autologous transplant of bone marrow-derived stem cells for acute ST-elevation myocardial infarction (STEMI) and to report the safety of the procedure in the first patients included.
Methods: The TRACIA study was implemented following predetermined inclusion and exclusion criteria. The protocol includes procedures such as randomization, bone marrow retrieval, stem cells processing, intracoronary infusion of stem cells in the infarct-related artery, preand- post MRI, pre-and-post SPECT with radioisotope ventriculography, and clinical follow-up at 6 months.
Background: Takayasu's arteritis (TA) is an idiopathic chronic inflammatory disease that causes occlusion of large arteries, but little is known about whether affected patients are characterized by endothelial dysfunction, different high-density lipoproteins (HDL) subclasses and paraoxonase-1 (PON1) activity.
Methods And Results: In the present study, 30 patients with TA, 30 age- and gender-matched volunteers (controls) and 15 patients with essential hypertension were studied. Flow-mediated vasodilation (FMD) and maximal blood flow velocity, assessed in the brachial artery by high-resolution ultrasound, were significantly lower in patients.
Introduction: Genetic differences between T. cruzi I and T. cruzi ll may determine differences in their tissue tropism in the vertebrate host and may also be responsible for the differences in clinical manifestations of Chagas disease.
View Article and Find Full Text PDFMem Inst Oswaldo Cruz
April 2005
Iatrogenous transmission of Trypanosoma cruzi by blood transfusion was suggested as a potential risk by Pellegrino (1949). Seropositive blood donors in Mexico were first reported in 1978, however, limited information is available due to small sampling, the use of heterogeneous serologic assays, and geographically limited studies. A wide survey carried out in 18 out of the 32 states of Mexico, showed a national mean of 1.
View Article and Find Full Text PDFBackground: Chagas' disease, caused by Trypanosoma cruzi, has a variable clinical course, ranging from asymptomatic infection to chronic disease. Trypanosoma cruzi has a clonal population structure, although infecting strains are often multiclonal. Genetic variability of T.
View Article and Find Full Text PDFHigh-density lipoproteins (HDL) includes a heterogeneous class of lipoproteins grouped into various subclasses that seem to have different antiatherogenic function. Cholesteryl ester transfer protein (CETP) and lecithin cholesterol acyltransferase (LCAT) play an active role in HDL remodeling. This study was designed to define the role of CETP and LCAT activities on HDL-cholesterol (HDL-C) plasma levels and HDL size distribution, as determined by nondenaturating polyacrylamide gradient gel electrophoresis in 47 clinically healthy Mexican individuals without personal and family history of coronary heart disease.
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