Imbalance of Myoinositol and D-Chiro-Inositol in Saliva of Children With Type-1 Diabetes Mellitus: A Cross-Sectional Study.

Objective: Earlier work suggests Myoinositol (MI) and D-chiro- inositol (DCI) imbalance in urine and plasma of diabetic patients, and their potential for monitoring insulin resistance. This study aimed to assess levels of Myoinositol (MI) and D-chiro- inositol (DCI) in saliva of children with type 1 diabetes mellitus (DM-1) and controls, to verify if concentrations of MI and DCI are similarly altered in saliva, exploring their potential for monitoring DM-1.

Design, Patients And Measurements: This cross-sectional clinical study enroled 45 patients (DM-1, n = 25; Controls, n = 20).

Morningness/eveningness in gestational diabetes mellitus: clinical characteristics and maternal-neonatal outcomes.

Objective: This study aims to evaluate the impact of morning-evening preference in pregnancy outcomes in gestational diabetes mellitus (GDM).

Methods: This is a prospective cohort study of 2nd-3rd trimester GDM outpatient care in Fortaleza, Brazil (2018-2020). Eveningness was defined by the Horne-Östberg Morningness-Eveningness-Questionnaire (MEQ ≤ 41).

Portuguese-Brazilian evidence-based guideline on the management of hyperglycemia in type 2 diabetes mellitus.

Background: In current management of type 2 diabetes (T2DM), cardiovascular and renal prevention have become important targets to be achieved. In this context, a joint panel of four endocrinology societies from Brazil and Portugal was established to develop an evidence-based guideline for treatment of hyperglycemia in T2DM.

Methods: MEDLINE (via PubMed) was searched for randomized clinical trials, meta-analyses, and observational studies related to diabetes treatment.

Lifestyle INtervention for Diabetes prevention After pregnancy (LINDA-Brasil): study protocol for a multicenter randomized controlled trial.

Background: Gestational diabetes mellitus (GDM), a hyperglycemic state detected during pregnancy, is an established risk factor for diabetes. However, treatment during pregnancy in and of itself is not able to eliminate this risk, and a considerable fraction of women with GDM will develop frank diabetes in the decade following pregnancy. Our aim is to conduct a multicenter randomized controlled trial to investigate the effectiveness of a lifestyle intervention program implemented after a pregnancy complicated by GDM in delaying or preventing the development of type 2 diabetes.

Baseline characteristics and risk factors for ulcer, amputation and severe neuropathy in diabetic foot at risk: the BRAZUPA study.

Background: Studies on diabetic foot and its complications involving a significant and representative sample of patients in South American countries are scarce. The main objective of this study was to acquire clinical and epidemiological data on a large cohort of diabetic patients from 19 centers from Brazil and focus on factors that could be associated with the risk of ulcer and amputation.

Methods: This study presents cross sectional, baseline results of the BRAZUPA Study.

Initial impact and cost of a nationwide population screening campaign for diabetes in Brazil: a follow up study.

Background: In 2001 Brazilian citizens aged 40 or older were invited to participate in a nationwide population screening program for diabetes. Capillary glucose screening tests and procedures for diagnostic confirmation were offered through the national healthcare system, diagnostic priority being given according to the severity of screening results. The objective of this study is to evaluate the initial impact of the program.

Free radical scavengers improve the impaired endothelium-dependent responses in aorta and kidneys of diabetic rabbits.

The effects of two endogenous antioxidants, alpha-lipoic acid and reduced gluthathione (GSH), were evaluated in the response of the renal vasculature and aortic rings ex vivo of 4-week alloxan-diabetic rabbits to the endothelium-dependent agonists bradykinin (BK) and acetylcholine (Ach) or to the endothelium-independent agonist sodium nitroprusside (SNP) and compared with age and sex-matched euglycemic rabbits. The maximal decrease in perfusion pressure (R(max)) after BK infusion in the renal vasculature from diabetic rabbits was 5.4+/-1.

Capture-recapture method to estimate lower extremity amputation rates in Rio de Janeiro, Brazil.

Objective: To estimate rates of lower extremity amputations (LEAs) in persons with peripheral vascular disease, diabetes mellitus, trauma, neoplasm, osteomyelitis, or emphysematous gangrene.

Methods: Regional amputee registries were used to estimate the rate of lower extremity amputations with the capture-recapture (CR) technique. Data were extracted from three amputee registries in Rio de Janeiro: source 1, with 1,191 cases from 23 hospitals; source 2, with 157 cases from a limb-fitting center; and source 3, with 34 cases from a rehabilitation center.

Gestational diabetes mellitus diagnosed with a 2-h 75-g oral glucose tolerance test and adverse pregnancy outcomes.

Objective: To evaluate American Diabetes Association (ADA) and World Health Organization (WHO) diagnostic criteria for gestational diabetes mellitus (GDM) against pregnancy outcomes.

Research Design And Methods: This cohort study consecutively enrolled Brazilian adult women attending general prenatal clinics. All women were requested to undertake a standardized 2-h 75-g oral glucose tolerance test (OGTT) between their estimated 24th and 28th gestational weeks and were then followed to delivery.

Decreased endothelium dependent relaxation (nitric oxide) in diabetic kidneys.

To evaluate the endothelium-dependent vasodilatation in diabetic kidneys, we have perfused rabbit kidneys at 30 degrees C with Krebs-Henseleit solution in a non-recirculated perfusion system. To increase vascular tonus, we infused norepinephrine (NOR) (10(-6)M) into the renal artery. After the vasoconstriction reached steady state conditions, a dose-response study was performed with acetylcholine (Ach) and bradykinin (Bk).

Effect of insulin on renal vascular escape in normal and diabetic kidney.

Renal Vascular Escape was studied in the isolated perfused kidney harvested from diabetic and normal rabbits. Diabetes was induced 3-4 weeks earlier by injecting the animals with 150 mg/kg alloxan IP. To induce vasoconstriction, norepinephrine (10(-6) M) (NOR) was infused to the renal artery for 20 min, during 3 cycles, with intervals of 10 min for drug wash out, with a total duration of 90 min of observation.

Alloxan diabetes blocks noradrenergic tachyphylaxis in the isolated rabbit kidney--effects of insulin.

Normal and alloxan treated diabetic rabbit kidneys were perfused with Krebs-Henseleit solution in a non-recirculating system and the effects of norepinephrine (NOR) 10(-6)M were tested by infusion of this drug for three subsequent periods of 20 min each, with an interval of 10 min for drug wash-out. In the control kidneys the infusion of NOR promoted an intense vasoconstriction, which was less intense during the second and the third periods. This was known as tachyphylaxis.

Insulin blockade of norepinephrine tachyphylaxis in the perfused kidney.

Tachyphylaxis to norepinephrine (NOR) was determined in the rabbit kidney perfused with Krebs-Henseleit solution by using different calcium concentrations (2.5 mM; 5 mM; 12.5 mM) in the perfusate.

An alpha-adrenotropic study of the normal and diabetic rabbit kidney.

Rabbit kidneys from normal and alloxan-treated animals were isolated and perfused at 30 degrees C, with Krebs-Henseleit solution. Norepinephrine (NOR), 1 microgram/min, promoted an increase in perfusion pressure which was blocked by phentolamine. In diabetic kidneys NOR induced a sluggish increase in perfusion pressure and resistance, showing a decrease in sensitivity of the adrenergic receptors to the drug.