Publications by authors named "Marcia C dos Santos"

Background And Aims: Common variants in fat mass and obesity-associated (FTO) gene have been implicated as a susceptibility locus for obesity and type 2 diabetes in different populations. Here, in an indigenous population-based study, we examined whether FTO rs9939609 has a role in susceptibility to glucose intolerance and obesity.

Methods: The study population comprised 949 full Xavante indigenous people (465 men) aged 18-99 years.

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Introduction: While soy is suggested as a possible risk factor, exclusive breastfeeding (EBF) has a likely protective effect in precocious puberty. Our aim was to evaluate the association between both of these variables with central precocious puberty (CPP).

Methods: We performed a retrospective, case-control study.

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Article Synopsis
  • - The study investigated the impact of high-dose vitamin D (VD) supplementation on blood sugar levels in patients with type 1 diabetes (T1DM), finding that overall glycemic control did not improve significantly after the treatment.
  • - Out of 67 patients, only 46 met the study criteria, and while the general results showed no change in HbA1c levels, a subgroup of 13 patients did experience a notable reduction in HbA1c.
  • - The research indicated a correlation between vitamin D levels and both HbA1c and total insulin dosage, suggesting that while VD supplementation isn't universally effective for glycemic control, it may offer benefits for some specific patients.
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Background: Cardiovascular autonomic neuropathy (CAN) is associated with diabetes , increasing morbidity and mortality. Some cross-sectional studies associated CAN with low levels. The aim of our study was to evaluate the effect of high-dose vitamin D (VD) supplementation on CAN in Type 1 Diabetes Mellitus (T1DM) patients.

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Article Synopsis
  • Vitamin D deficiency is linked to various health issues, and its impact on blood pressure in diabetic patients remains debated.
  • This study assessed the effects of high-dose vitamin D supplementation on blood pressure in 35 normotensive patients with Type 1 diabetes over 12 weeks using 24-hour ambulatory blood pressure monitoring.
  • Results indicated a significant reduction in both systolic and diastolic morning blood pressures, suggesting a potential benefit of vitamin D supplementation for managing blood pressure in these patients.
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Serum IGF-1 (Insulin like growth factor 1) and Growth Hormone (GH) provocative tests are reasonable tools for screening and diagnosis of idiopathic GH Deficiency (IGHD). However, the average cut-off points applied on these tests have a lower level of evidence and produce large amounts of false results. The aim of this study is to evaluate the sensitivity, specificity, and accuracy of IGF-1 and GH stimulation tests as diagnostic tools for IGHD, using clinical response to recombinant human GH (rhGH) treatment as diagnostic standard [increase of at least 0.

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Resistance training (RT) is performed at distinct levels of intensity from the beginning to the end of exercise sets, increasing the sensation of effort as the exercise progress to more vigorous levels, commonly leading to changes on the facial expression of RT practitioners. The objective of this study is to evaluate changes in facial expressions using the Facial Action Coding System(FACS) and the activation of facial muscles by surface electromyography(sEMG) at two different levels of effort during resistance exercise and to investigate the correlation between facial expression and exercise intensity and fatigue. Eleven healthy male participants [23±6years; 1.

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Sensorineural hearing impairment has been associated with DM, and it is probably linked to the same pathophysiological mechanisms as well-established in microvascular diabetes complications. The study of otoacoustic emissions (OAEs) is useful to identify subclinical cochlear dysfunction. Therefore, the aim of this study was to evaluate the association between abnormal OAEs responses, diabetic kidney disease (DKD) and diabetic cardiac autonomic neuropathy (CAN).

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Background: Some studies suggest an association between diabetic kidney disease (DKD) and vitamin D (VD), but there is no data about the effect of high dose of VD on DKD in type 1 diabetes mellitus (T1DM). Our pilot study aims to evaluate albuminuria reduction in patients with T1DM supplemented with high dose of VD.

Methods: 22 patients received doses of 4,000 and 10,000 IU/day of cholecalciferol for 12 weeks according to patient's previous VD levels.

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Context: Genetic and environmental factors are involved in the pathogenesis of type 1 diabetes mellitus (T1DM), and vitamin D (VD) deficiency appears as a candidate to risk factor for developing diabetic kidney disease (DKD).

Objective: The purpose of study was to evaluate the existence of an association between low levels of VD and the presence and degree of DKD in T1DM.

Patients And Methods: We performed a cross-sectional study, between November 2014 and December 2015.

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Maternally-inherited diabetes with deafness (MIDD) is a rare form of monogenic diabetes that results, in most cases, from an A-to-G transition at position 3243 of mitochondrial DNA (m.3243A>G) in the mitochondrial-encoded tRNA leucine (UUA/G) gene. As the name suggests, this condition is characterized by maternally-inherited diabetes and bilateral neurosensory hearing impairment.

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