One hundred years of Ecuadorian biomedical scientific output and its association with the main causes of mortality: a bibliometric study.

Introduction: Historically, low-and middle-income countries have been scarce producers of biomedical research; only 2% of the global scientific output is produced by these countries despite accounting for 92% of the global burden of disease. In addition, few low-and middle-income countries have exhaustively mapped and analyzed their scientific production in health and its association with main local burden of disease.

Objective: To evaluate the evolution of biomedical research in Ecuador over the last 100 years and its relationship with the main causes of mortality.

Genetic basis and spatial distribution of glucose-6-phosphate dehydrogenase deficiency in ecuadorian ethnic groups: a malaria perspective.

Background: Glucose-6-phosphate dehydrogenase deficiency (G6PDd) is an X-linked disorder affecting over 400 million people worldwide. Individuals with molecular variants associated with reduced enzymatic activity are susceptible to oxidative stress in red blood cells, thereby increasing the risk of pathophysiological conditions and toxicity to anti-malarial treatments. Globally, the prevalence of G6PDd varies among populations.

CARD10 cleavage by MALT1 restricts lung carcinoma growth in vivo.

CARD-CC complexes involving BCL10 and MALT1 are major cellular signaling hubs. They govern NF-κB activation through their scaffolding properties as well as MALT1 paracaspase function, which cleaves substrates involved in NF-κB regulation. In human lymphocytes, gain-of-function defects in this pathway lead to lymphoproliferative disorders.

Hypercalcemia and acute renal insufficiency following use of a veterinary supplement.

A previously healthy 24 yo male presented with a two-month history of epigastric pain, nausea, vomiting, fatigue and malaise. He reported abuse of different substances, including an injectable veterinary vitamin compound, which contains high doses of vitamin A, D and E, and an oily vehicle that induces local edema and enhances muscle volume. Serum creatinine was 3.

Health-related quality of life in patients with type 1 diabetes mellitus in the different geographical regions of Brazil: data from the Brazilian Type 1 Diabetes Study Group.

Background: In type 1 diabetes mellitus (T1DM) management, enhancing health-related quality of life (HRQoL) is as important as good metabolic control and prevention of secondary complications. This study aims to evaluate possible regional differences in HRQoL, demographic features and clinical characteristics of patients with T1DM in Brazil, a country of continental proportions, as well as investigate which variables could influence the HRQoL of these individuals and contribute to these regional disparities.

Methods: This was a retrospective, cross-sectional, multicenter study performed by the Brazilian Type 1 Diabetes Study Group (BrazDiab1SG), by analyzing EuroQol scores from 3005 participants with T1DM, in 28 public clinics, among all geographical regions of Brazil.

Factors associated with elevated serum alanine aminotransferase in patients with type 1 diabetes mellitus.

Aim: Metabolic syndrome and type 2 diabetes are associated with insulin resistance and hepatic steatosis, which are common causes of alanine aminotransferase (ALT) elevation. This study aims to identify variables associated with altered ALT in type 1 diabetic (DM1) subjects.

Methods: A cross-sectional study conducted in the outpatient endocrinology clinic of a university hospital.

Determinants of intensive insulin therapeutic regimens in patients with type 1 diabetes: data from a nationwide multicenter survey in Brazil.

Background: To evaluate the determinants of intensive insulin regimens (ITs) in patients with type 1 diabetes (T1D).

Methods: This multicenter study was conducted between December 2008 and December 2010 in 28 public clinics in 20 Brazilian cities. Data were obtained from 3,591 patients (56.

Relationship between adherence to diet, glycemic control and cardiovascular risk factors in patients with type 1 diabetes: a nationwide survey in Brazil.

Background: To determine the relationship between adherence to the diet reported by patients with type 1 diabetes under routine clinical care in Brazil, and demographic, socioeconomic status, glycemic control and cardiovascular risk factors.

Methods: This was a cross-sectional, multicenter study conducted between December 2008 and December 2010 in 28 public clinics in 20 Brazilian cities. The data was obtained from 3,180 patients, aged 22 ± 11.

Regional differences in clinical care among patients with type 1 diabetes in Brazil: Brazilian Type 1 Diabetes Study Group.

Background: To determine the characteristics of clinical care offered to type 1 diabetic patients across the four distinct regions of Brazil, with geographic and contrasting socioeconomic differences. Glycemic control, prevalence of cardiovascular risk factors, screening for chronic complications and the frequency that the recommended treatment goals were met using the American Diabetes Association guidelines were evaluated.

Methods: This was a cross-sectional, multicenter study conducted from December 2008 to December 2010 in 28 secondary and tertiary care public clinics in 20 Brazilian cities in north/northeast, mid-west, southeast and south regions.

Perinatal impact of the use of metformin and glyburide for the treatment of gestational diabetes mellitus.

Objective: To evaluate the perinatal impact of metformin and glyburide in the treatment of gestational diabetes mellitus (GDM).

Methods: A randomized clinical trial conducted from July 2008 until September 2010 studied 200 pregnant women with GDM who required adjunctive therapy to diet and physical activity. Patients were randomized to use metformin (n=104) or glyburide (n=96).

Post-mortem examination and laboratory-based analysis for the diagnosis of bovine tuberculosis among dairy cattle in Ecuador.

Veterinary inspection in slaughterhouses allows for the detection of macroscopic lesions reminiscent of bovine tuberculosis, but the presence of Mycobacterium bovis must be confirmed by laboratory methods. This study aimed at comparing the performances of the standard diagnostic tools used to identify M. bovis in tissue specimens sampled from suspicious animals.

[Questionnaire of Diabetes Self-Care Activities: translation, cross-cultural adaptation and evaluation of psychometric properties].

Objectives: To translate into Portuguese, perform cross-cultural adaptation and to evaluate the psychometric properties of the Summary of Diabetes Self-Care Activities Questionnaire - SDSCA.

Materials And Methods: The process followed the international guidelines for the adaptation and evaluation of psychometric properties. The Cronbach's alpha (α) was determined to evaluate the internal consistency (inter-itens correlation) and the reliability (test-retest and inter-evaluator correlation).

[Late evaluation of the pituitary-gonadal axis in survivors of severe traumatic brain injury].

Objective: The purpose of this study is to evaluate pituitary function impairment in order to verify the prevalence of sex hormone deficiency and to analyze the profile of TBI population.

Methods: Thirty patients were studied, 22 were male and 8 were female. All patients had their gonadal function assessed and they were evaluated at a median of 4 years post-trauma.

Evaluation of late-onset hypogonadism (andropause) treatment using three different formulations of injectable testosterone.

Objective: To compare the modalities of treatment for male hypogonadism available in Brazil.

Methods: Thirty-two men with late-onset hypogonadism ('andropause') were followed-up in the Hospital de Guarnição de Florianópolis, in Florianópolis, south Brazil. Clinical diagnosis was established according to AMS questionnaire (positive if equal to or higher than 27 points), and laboratory diagnosis was made through low values of total testosterone (under 300 ng/dL) and/or free calculated testosterone (under 6.

Hypogonadism after traumatic brain injury.

Traumatic brain injury (TBI) is the most common cause of death and disability in young adults. Post-TBI neuroendocrine disorders have been increasingly acknowledged in recent years due to their potential contribution to morbidity and, probably, to mortality after trauma. Marked alterations of the hypothalamic-pituitary axis during the post-TBI acute and chronic phases have been reported.

Potential neoplastic effects of parathion-methyl on rat liver.

The mutagenic and carcinogenic effects of parathion-methyl were examined by bacterial reverse mutation assay and a long-term experiment with wistar rats. The potential mutagenic effect of parathion-methyl in Salmonella typhimurium TA100 bacterial cells was observed without rat liver S9 metabolic activation. Parathion-methyl was further investigated for pathological changes in rat pancreas and liver.

Increase incidence of thyroid cancer in Florianopolis, Brazil: comparative study of diagnosed cases in 2000 and 2005.

Objective: To provide epidemiological information about thyroid cancer (TC) in the Metropolitan area of Florianopolis and investigate some factors that could be associated with this type of cancer.

Method: This study analyzed data of patients who had TC diagnosed and underwent surgical treatment in 2000 and 2005. Epidemiological factors about patients, tumors and surgical procedures were evaluated.

Intravascular brachytherapy for native coronary ostial in-stent restenotic lesions.

Objectives: We analyzed the effects of vascular brachytherapy (VBT) on ostial in-stent restenosis (ISR).

Background: In-stent restenosis has a high recurrence rate after percutaneous reintervention. The recurrence rate of ostial ISR lesions and the impact of VBT remain unknown.