Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 29
Filtrar
1.
Nutr Metab Cardiovasc Dis ; 34(3): 763-770, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38161118

RESUMO

BACKGROUND AND AIMS: Type 2 Diabetes Mellitus (T2D) has heterogeneous clinical phenotypes related to different risk of developing diabetes complications. We investigated the correlation between generalized and abdominal adiposity and the prevalence of both micro- and macrovascular complications in Caucasian patients with T2D. METHODS AND RESULTS: We evaluated 769 individuals with T2D consecutively referred to our diabetes center. Body mass index (BMI), waist circumference (WC), waist to hip (W/H) ratio, glycated hemoglobin (HbA1c), systolic and diastolic blood pressure, lipid profile, smoking habit, diabetes therapy, and micro- and macrovascular complications were recorded. Patients were divided into three groups based on BMI and WC: non-obese with normal WC (nWC, n = 220), non-obese with excess of abdominal fat (AF, n = 260) and obese (Ob, n = 289). We found that nWC, compared with AF and Ob individuals, were predominantly males (p<0.01), had lower HbA1c (p<0.01), diastolic blood pressure (p<0.01), triglycerides (p<0.01), and showed a significantly lower prevalence of diabetic retinopathy (DR) (p = 0.01). The rate of proliferative DR was significantly higher in Ob (13.2 %) compared to the other groups (p = 0.03). Multivariate analyses showed a significantly decreased prevalence of DR in nWC compared to both AF (OR 0.58, 95 CI 0.34-0.96; p = 0.03) and Ob (OR 0.57, 95 CI 0.33-0.98; p = 0.04) individuals. Conversely, DR was associated, mainly in women, to higher WC and W/H ratio. The prevalence of the other diabetes-related complications was similar among the studied groups. CONCLUSIONS: In our population, nWC subjects showed a lower prevalence of DR. An increased generalized and abdominal adiposity was associated to a higher prevalence of DR, especially among females.


Assuntos
Diabetes Mellitus Tipo 2 , Retinopatia Diabética , Masculino , Humanos , Feminino , Diabetes Mellitus Tipo 2/diagnóstico , Diabetes Mellitus Tipo 2/epidemiologia , Diabetes Mellitus Tipo 2/complicações , Retinopatia Diabética/diagnóstico , Retinopatia Diabética/epidemiologia , Adiposidade , Hemoglobinas Glicadas , Prevalência , Obesidade Abdominal/diagnóstico , Obesidade Abdominal/epidemiologia , Obesidade Abdominal/complicações
3.
Nutr Metab Cardiovasc Dis ; 32(7): 1635-1641, 2022 07.
Artigo em Inglês | MEDLINE | ID: mdl-35508458

RESUMO

BACKGROUND AND AIMS: Remdesivir (GS-5734), an inhibitor of the viral RNA-dependent, RNA polymerase was early identified as a promising therapeutic candidate against COVID-19. Our aim was to evaluate the impact of several metabolic parameters on Remdesivir effectiveness among hospitalized COVID-19 patients. METHODS AND RESULTS: We conducted an observational study on patients with SARS-CoV-2-related pneumonia admitted between May 2020 and September 2021 to the COVID-19 Units of Internal Medicine, Pneumology and Intensive Care of Garibaldi Hospital, Catania, Italy, and treated with Remdesivir. The "Ordinal Scale For Clinical Improvement" was used to assess patients' clinical improvement within 28 days of hospitalization. Short-term mortality rate was also evaluated. A total of 142 patients with SARS-CoV-2-related pneumonia were studied. The prevalence of obesity (20.7% vs. 41.9%, p = 0.03), the average BMI (27.1 ± 4.4 vs. 31.1 ± 6.1, p < 0.01) and the mean LDL-C levels (78 ± 19 mg/dl vs. 103 ± 18 mg/dl, p = 0.03) were significantly lower in early-improved (EI) compared to not-improved (NI) individuals. Obesity was negatively associated to clinical improvement after Remdesivir (OR 0.48, 95%CI 0.17-0.97, p = 0.04). Both obesity (OR 2.82, 95% CI 1.05-7.71, p = 0.04) and dyslipidemia (OR 2.78, 95%CI 1.17-7.16, p = 0.03) were significantly related to patients' mortality. Dyslipidemic subjects experienced a slower clinical improvement than non-dyslipidemic ones (Long-Rank p = 0.04). CONCLUSION: Our study showed that unfavorable metabolic conditions such as obesity and dyslipidemia could predict a worse clinical response to Remdesivir as well as the mortality in hospitalized COVID-19 patients. Further prospective and larger-scale studies are needed to confirm these preliminary findings.


Assuntos
Tratamento Farmacológico da COVID-19 , Dislipidemias , Monofosfato de Adenosina/análogos & derivados , Alanina/análogos & derivados , Antivirais/efeitos adversos , Dislipidemias/diagnóstico , Dislipidemias/tratamento farmacológico , Dislipidemias/epidemiologia , Humanos , Obesidade/diagnóstico , Obesidade/tratamento farmacológico , SARS-CoV-2
4.
Nutr Metab Cardiovasc Dis ; 31(6): 1851-1859, 2021 06 07.
Artigo em Inglês | MEDLINE | ID: mdl-33975741

RESUMO

BACKGROUND AND AIMS: Good glycemic control is crucial to reduce the risk of adverse pregnancy outcomes. Our aim was to evaluate the efficacy of Flash Glucose Monitoring (FGM) on glucose control in women with pregestational diabetes. METHODS AND RESULTS: Forty women with inadequately controlled type 1 (T1D, n = 34) and type 2 (T2D, n = 6) diabetes at conception were randomly assigned to two arms: the Flash Glucose group (FG, n = 21) using FGM, and the control group (CG, n = 19) using self-monitoring of blood glucose (SMBG). Glycated hemoglobin (HbA1c, %), time in (TIR), below (TBR) and above (TAR) range, glucose variability as well as the occurrence of maternal and neonatal adverse outcomes, were evaluated. HbA1c decreased significantly (p < 0.01) and similarly (-0.65 ± 0.7 vs. -0.67 ± 0.8 for FG and CG, respectively; p = 0.89) in both groups during pregnancy. HbA1c reduction was positively associated with the number of daily FGM scans (p < 0.01). TBR (12.1 ± 2.0% vs. 19.6 ± 3.9%, p = 0.04) and the mean of the daily serum glucose difference (MODD) index (59.1 ± 5.4 vs. 77.7 ± 4.6, p = 0.02) were significantly lower in FG at second trimester. The rates of perinatal adverse outcomes were not different in the two studied groups. CONCLUSIONS: In women with pregestational diabetes, FGM and SMBG had similar efficacy on glucose control during pregnancy. FGM showed additional advantages in terms of TBR and glucose variability. Achievement of good metabolic results depended on the adequate use of glucose sensor. REGISTRATION: At ClinicalTrials.gov as NCT04666818 on December 14, 2020.


Assuntos
Automonitorização da Glicemia/instrumentação , Glicemia/efeitos dos fármacos , Diabetes Mellitus Tipo 1/tratamento farmacológico , Diabetes Mellitus Tipo 2/tratamento farmacológico , Controle Glicêmico/instrumentação , Hipoglicemiantes/uso terapêutico , Gravidez em Diabéticas , Adulto , Biomarcadores/sangue , Glicemia/metabolismo , Diabetes Mellitus Tipo 1/sangue , Diabetes Mellitus Tipo 1/diagnóstico , Diabetes Mellitus Tipo 2/sangue , Diabetes Mellitus Tipo 2/diagnóstico , Feminino , Humanos , Hipoglicemia/sangue , Hipoglicemia/induzido quimicamente , Hipoglicemia/prevenção & controle , Hipoglicemiantes/efeitos adversos , Itália , Projetos Piloto , Valor Preditivo dos Testes , Gravidez , Estudos Prospectivos , Resultado do Tratamento
5.
Endocr Pract ; 27(2): 110-117, 2021 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-33616044

RESUMO

OBJECTIVE: Type 1 diabetes (T1D) is frequently associated with other autoimmune diseases (AIDs). Although most of T1D patients are sporadic cases (S-T1D), 10% to 15% have a familial form (F-T1D) involving 2 or more first-degree relatives. This study evaluated the effect of T1D family aggregation and age onset on AIDs occurrence. METHODS: In this observational, cross-sectional, case-control, single center study, we enrolled 115 F-T1D and 115 S-T1D patients matched for gender, age, T1D age onset, and duration. With respect to T1D age onset (before or after 18 years), both groups were further subdivided into young- or adult-onset F-T1D and young- or adult-onset S-T1D. The presence of organ-specific antibodies and/or overt AIDs was evaluated. RESULTS: The F-T1D group had a higher percentage of AIDs (29.8% vs 18.4%, P = .04) and a significant earlier onset of AIDs at Cox regression analysis (P = .04) than the S-T1D group. Based on multivariate analysis, the adult-onset F-T1D subgroup had the highest prevalence of both additional organ-specific antibodies (60.5%) and overt AIDs (34.9%), whereas the adult S-T1D subgroup was the least frequently involved (29.1% and 12.7%, respectively). In F-T1D patients, offsprings develop T1D and AIDs earlier than their parents do. CONCLUSIONS: In T1D patients, familial aggregation and adult-onset of T1D increase the risk for coexistent AIDs. These clinical predictors could guide clinicians to address T1D patients for the screening of T1D-related AIDs.


Assuntos
Doenças Autoimunes , Diabetes Mellitus Tipo 1 , Diabetes Mellitus Tipo 2 , Adolescente , Adulto , Estudos de Casos e Controles , Estudos Transversais , Diabetes Mellitus Tipo 1/complicações , Diabetes Mellitus Tipo 1/epidemiologia , Diabetes Mellitus Tipo 1/genética , Humanos , Lactente
7.
Nutr Metab Cardiovasc Dis ; 30(9): 1520-1524, 2020 08 28.
Artigo em Inglês | MEDLINE | ID: mdl-32665208

RESUMO

BACKGROUND AND AIMS: Despite evidence that pregnancy planning improves outcomes, in Italy, as in many other countries worldwide, <50% of women with diabetes prepare their pregnancy. The aim of this study was to document training and knowledge on diabetes and pregnancy (D&P) among diabetes professionals. METHODS AND RESULTS: We administered an anonymous online questionnaire, focused on diabetes and pregnancy planning, to diabetes team members. Between Nov-2017 and Jul-2018, n = 395 professionals (60% diabetes/endocrinology/internal medicine specialists, 28% fellows) completed the survey. Fifty-nine percent of the specialists, mainly (78%) those completing their fellowship after 2006, reported having received training on D&P during fellowship. Considering specialists reporting training, 43% correctly identified fetal risks of inadequate preconceptional glucose control and 55% maternal risks, 38% identified risks associated with overweight/obesity, and 39% would prescribe hormonal contraception to women with diabetes only if glucose control is good. CONCLUSIONS: The results of our survey suggest the need to improve training and awareness of professionals in the area of diabetes and pregnancy.


Assuntos
Endocrinologistas/psicologia , Conhecimentos, Atitudes e Prática em Saúde , Medicina Interna , Complicações na Gravidez/prevenção & controle , Gravidez em Diabéticas/terapia , Adulto , Anticoncepção , Educação de Pós-Graduação em Medicina , Endocrinologistas/educação , Serviços de Planejamento Familiar , Bolsas de Estudo , Feminino , Humanos , Medicina Interna/educação , Internato e Residência , Masculino , Saúde Materna , Pessoa de Meia-Idade , Gravidez , Complicações na Gravidez/diagnóstico , Complicações na Gravidez/fisiopatologia , Resultado da Gravidez , Gravidez em Diabéticas/diagnóstico , Gravidez em Diabéticas/fisiopatologia , Gravidez não Planejada , Medição de Risco , Fatores de Risco , Especialização , Inquéritos e Questionários
8.
Diabetes Metab Res Rev ; 35(8): e3199, 2019 11.
Artigo em Inglês | MEDLINE | ID: mdl-31257680

RESUMO

BACKGROUND: Childhood obesity is encouraged by low physical activity (PA), time spent using screens (screen time, ST), and by sugar-sweetened beverage consumption (SSBc). It is also influenced by unfavorable parents' characteristics, such as a high body mass index (BMI) and low education level (EL). Our aim was to evaluate the overall and specific influence of these factors on childhood adiposity. MATERIAL AND METHODS: Anthropometric parameters including BMI z-score, waist circumference (WC), waist to height ratio (WtHR), and fat mass were measured in a cohort of 1702 schoolchildren (6.0-14.5 years, mean 10.7 ± 1.8) and questionnaires concerning children's PA, ST, and SSBc, and parent's BMI and EL were administered to parents. RESULTS: Overweight/obesity prevalence was higher (P < .0001) in males (57%) than in females (43%). Less physically active children (28.9%) had a higher prevalence of overweight/obesity and higher BMI z-score, WC, WtHR, and fat mass relative to more physically active children (P < .05). PA was negatively associated with the BMI z-score (r = 0.18, P < .0001) and fat mass percentage (r = 0.18, P < .0001). Children with more ST had higher WC and WtHR than non-ST viewers (P < .05) but not BMI. Moreover, SSBc did not influence the anthropometric parameters. At multivariate analysis, male gender, less PA, and parental risk factors (parent's overweight/obesity and low/medium EL) were independently associated with overweight and obesity among childhood with a progressively increasing odds ratio (1.65, 1.40, and 1.80, respectively). CONCLUSIONS: Male gender, behavioral risk factors (particularly low PA), and parent's characteristics are important correlates of obesity in children.


Assuntos
Adiposidade , Bebidas Gaseificadas/estatística & dados numéricos , Dieta/efeitos adversos , Exercício Físico , Sobrepeso/epidemiologia , Pais , Obesidade Infantil/epidemiologia , Adolescente , Antropometria , Índice de Massa Corporal , Criança , Estudos de Coortes , Estudos Transversais , Feminino , Seguimentos , Comportamentos Relacionados com a Saúde , Humanos , Masculino , Sobrepeso/etiologia , Obesidade Infantil/etiologia , Prevalência , Prognóstico , Fatores de Risco , Sicília/epidemiologia , Fatores Socioeconômicos , Inquéritos e Questionários , Circunferência da Cintura
9.
Int J Mol Sci ; 20(12)2019 Jun 12.
Artigo em Inglês | MEDLINE | ID: mdl-31212761

RESUMO

Adipose tissue has been recognized as a complex organ with endocrine and metabolic roles. The excess of fat mass, as occurs during overweight and obesity states, alters the regulation of adipose tissue, contributing to the development of obesity-related disorders. In this regard, many epidemiological studies shown an association between obesity and numerous types of malignancies, comprising those linked to the endocrine system (e.g., breast, endometrial, ovarian, thyroid and prostate cancers). Multiple factors may contribute to this phenomenon, such as hyperinsulinemia, dyslipidemia, oxidative stress, inflammation, abnormal adipokines secretion and metabolism. Among adipokines, growing interest has been placed in recent years on adiponectin (APN) and on its role in carcinogenesis. APN is secreted by adipose tissue and exerts both anti-inflammatory and anti-proliferative actions. It has been demonstrated that APN is drastically decreased in obese individuals and that it can play a crucial role in tumor growth. Although literature data on the impact of APN on carcinogenesis are sometimes conflicting, the most accredited hypothesis is that it has a protective action, preventing cancer development and progression. The aim of the present review is to summarize the currently available evidence on the involvement of APN and its signaling in the etiology of cancer, focusing on endocrine malignancies.


Assuntos
Adiponectina/metabolismo , Tecido Adiposo/metabolismo , Neoplasias das Glândulas Endócrinas/etiologia , Obesidade/complicações , Obesidade/metabolismo , Adiponectina/química , Adiponectina/genética , Animais , Biomarcadores , Transformação Celular Neoplásica/genética , Transformação Celular Neoplásica/metabolismo , Neoplasias das Glândulas Endócrinas/diagnóstico , Neoplasias das Glândulas Endócrinas/metabolismo , Neoplasias das Glândulas Endócrinas/terapia , Humanos , Insulina/metabolismo , Modelos Biológicos , Metástase Neoplásica , Comunicação Parácrina , Ligação Proteica , Receptores de Adiponectina/genética , Receptores de Adiponectina/metabolismo , Risco , Medição de Risco , Relação Estrutura-Atividade
10.
Int J Mol Sci ; 19(11)2018 Oct 24.
Artigo em Inglês | MEDLINE | ID: mdl-30355995

RESUMO

In the last two decades, numerous in vitro studies demonstrated that insulin receptors and theirs downstream pathways are widely distributed throughout the brain. This evidence has proven that; at variance with previous believes; insulin/insulin-like-growth-factor (IGF) signalling plays a crucial role in the regulation of different central nervous system (CNS) tasks. The most important of these functions include: synaptic formation; neuronal plasticity; learning; memory; neuronal stem cell activation; neurite growth and repair. Therefore; dysfunction at different levels of insulin signalling and metabolism can contribute to the development of a number of brain disorders. Growing evidences demonstrate a close relationship between Type 2 Diabetes Mellitus (T2DM) and neurodegenerative disorders such as Alzheimer's disease. They, in fact, share many pathophysiological characteristics comprising impaired insulin sensitivity, amyloid ß accumulation, tau hyper-phosphorylation, brain vasculopathy, inflammation and oxidative stress. In this article, we will review the clinical and experimental evidences linking insulin resistance, T2DM and neurodegeneration, with the objective to specifically focus on insulin signalling-related mechanisms. We will also evaluate the pharmacological strategies targeting T2DM as potential therapeutic tools in patients with cognitive impairment.


Assuntos
Doença de Alzheimer/metabolismo , Diabetes Mellitus Tipo 2/metabolismo , Insulina/metabolismo , Transdução de Sinais , Doença de Alzheimer/tratamento farmacológico , Animais , Diabetes Mellitus Tipo 2/tratamento farmacológico , Humanos , Hipoglicemiantes/uso terapêutico , Receptor de Insulina/metabolismo
11.
Diabetes Metab Res Rev ; 31(1): 61-8, 2015 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-24816997

RESUMO

BACKGROUND: The aim of this study was to determine the efficacy of real-time continuous glucose monitoring in T1D patients treated with insulin pump therapy or multiple daily insulin therapy. METHODS: Twenty adult patients (ten insulin pump therapy and ten multiple daily insulin) with poor glycaemic control (HbA1c > 8.0%) were randomized into two groups for 6 months: the continuous glucose monitoring arm (using real-time continuous glucose monitoring) and the SMBG arm. After 2 months of wash-out, the participants crossed over. The primary outcome was HbA1c reduction. The secondary outcomes were hypoglycaemia and hyperglycaemia risk assessment (area under the curve < 70 mg/dL/day and AUC > 200 mg/dL/day, respectively) and glucose variability. RESULTS: Fourteen patients (eight multiple daily insulin, six insulin pump therapy) used continuous glucose monitoring appropriately (at least 40% of the time). In these patients, the improvement in glycaemic control was more evident during the real-time continuous glucose monitoring period (7.76% ± 0.4 vs 8.54% ± 0.4, p < 0.05) than during the self-monitoring of blood glucose period (8.42% ± 0.4 vs 8.56% ± 0.5, p = 0.2). Better results with continuous glucose monitoring were observed in patients using multiple daily insulin with greater improvement in both glycaemic control (7.71% ± 0.2 vs 8.58% ± 0.2, p < 0.05) and glucose variability and with a marked reduction in the risk of both hypoglycaemia and hyperglycaemia. CONCLUSIONS: Appropriate use of real-time continuous glucose monitoring improved glycometabolic control in T1D patients. The effects of continuous glucose monitoring were more evident in patients under multiple daily insulin treatment, compared with insulin pump therapy. Glucose variability, in addition to glycaemic control, was improved in compliant diabetic patients.


Assuntos
Glicemia/análise , Diabetes Mellitus Tipo 1/sangue , Diabetes Mellitus Tipo 1/tratamento farmacológico , Insulina/administração & dosagem , Adolescente , Adulto , Glicemia/metabolismo , Automonitorização da Glicemia/métodos , Estudos Cross-Over , Feminino , Humanos , Injeções Subcutâneas , Insulina/efeitos adversos , Sistemas de Infusão de Insulina , Masculino , Pessoa de Meia-Idade , Resultado do Tratamento , Adulto Jovem
12.
Front Endocrinol (Lausanne) ; 14: 1200372, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37554764

RESUMO

Background: Hashimoto's thyroiditis (HT) is the most common autoimmune disease. HT may be associated with nonthyroidal autoimmune diseases, including celiac disease (CD) or other gluten-related conditions (GRC). In the last years, interest about gluten-free diet (GFD) has increased for its supposed extraintestinal anti-inflammatory effect; thus, many patients with HT initiate GFD on their own. Objectives: The aim of this meta-analysis is to examine all available data in literature about the effect of a GFD on TgAb, TPOAb, TSH, FT4, and FT3 levels in patients with HT and no symptoms or histology of CD. Methods: The study was conducted according to MOOSE (Meta-analysis Of Observational Studies in Epidemiology). The search was performed on databases PubMed and Scopus. The last search was performed on 7 February 2023. Quality assessment was performed. Meta-analyses were performed using the random-effect model. Hedges' g was used to measure the effect size (ES). Statistical analyses were performed using StataSE 17. Results: The online search retrieved 409 articles, and 4 studies with a total of 87 patients were finally included for quantitative analysis. The risk of bias was generally low. The mean period of GFD was almost 6 months. The meta-analyses showed reduction in antibody levels with ES: -0.39 for TgAb (95% CI: -0.81 to +0.02; p = 0.06; I² = 46.98%) and -0.40 for TPOAb (95% CI: -0.82 to +0.03; p = 0.07; I² = 47.58%). TSH showed a reduction with ES: -0.35 (95% CI: -0.64 to -0.05; p = 0.02; I² = 0%) and FT4 showed an increase with ES: +0.35% (95% CI: 0.06 to 0.64; p = 0.02; I² = 0%). FT3 did not display variations (ES: 0.05; 95% CI: -0.38 to +0.48; p = 0.82; I² = 51%). The heterogeneity of TgAb, TPOAb, and FT3 data was solved performing sub-analyses between patients with or without GRC (TgAb p = 0.02; TPOAb p = 0.02; FT3 p = 0.04) and only for FT3, performing a sub-analysis between patients taking and not taking LT4 (p = 0.03). Conclusion: This is the first meta-analysis investigating the effect of GFD on HT. Our results seem to indicate a positive effect of the gluten deprivation on thyroid function and its inflammation, particularly in patients with HT and GRC. However, current lines of evidence are not yet sufficient to recommend this dietary approach to all patients with a diagnosis of HT.


Assuntos
Doença Celíaca , Doença de Hashimoto , Tireoidite Autoimune , Humanos , Dieta Livre de Glúten , Autoanticorpos , Doença de Hashimoto/diagnóstico , Tireotropina
13.
Diabetes Res Clin Pract ; 188: 109911, 2022 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-35537521

RESUMO

AIMS: To assess the GDM recurrence rate in a cohort of pregnant women with prior GDM, to compare two consecutive pregnancies complicated by GDM, to compare women with nonrecurrent and recurrent GDM and to stratify the latter in women with early and late recurrent GDM. METHODS: Retrospective study including 113 women with GDM in an index pregnancy (G1), at least a postindex pregnancy (G2) and normal glucose tolerance in between. The GDM recurrence rate was assessed, and maternal and neonatal outcomes and pancreatic beta cell function of the index pregnancy were compared with those of the postindex pregnancy (G1 vs. G2). Women with nonrecurrent GDM were compared with those with recurrent GDM. RESULTS: The GDM recurrence rate was 83.2% and the minimum prevalence of early recurrent GDM was 43,4%. The pregravid BMI of women with recurrent GDM increased between the two pregnancies (27.3 ± 5.98 vs. 28.1 ± 6.19 kg/m2, p < 0.05). Women with recurrent GDM had a higher prepregnancy BMI than those with nonrecurrent GDM either at the index (27.3 ± 5.98 vs. 23.1 ± 4.78 kg/m2, p < 0.05) or the postindex pregnancy (27 ± 6vs.24 ± 4,4 kg/m2, p < 0.05). CONCLUSIONS: GDM shows a high recurrence rate in our cohort of slightly overweight women, with an early GDM minimum prevalence of 43.4%.


Assuntos
Diabetes Gestacional , Índice de Massa Corporal , Diabetes Gestacional/epidemiologia , Diabetes Gestacional/etiologia , Feminino , Humanos , Recém-Nascido , Masculino , Gravidez , Prevalência , Estudos Retrospectivos , Fatores de Risco
14.
Prim Care Diabetes ; 15(2): 283-288, 2021 04.
Artigo em Inglês | MEDLINE | ID: mdl-33129749

RESUMO

AIMS: To evaluate efficacy, renal safety and tolerability of sodium-glucose cotransporter 2 inhibitors (SGLT2i) in a cohort of patients with type 2 diabetes (T2DM) aged ≥65 years. METHODS: We retrospectively evaluated 364 elderly individuals with T2DM starting SGLT2i from June 2015 to June 2018. Patients were divided into 2 subgroups based on median age (70 years). Linear mixed effect models were used to estimate changes in glycated hemoglobin (HbA1c), body mass index (BMI), and glomerular filtration rate (eGFR). SGLT2i discontinuation rate and causes of treatment interruption were also recorded. RESULTS: A significantly higher percentage of patients achieved HbA1c <7.5% (46.7% vs. 31.6%, p < 0.01) and <8.0% (68.9% vs. 47.2%, p < 0.01) compared to baseline. Each year of therapy was associated with an average HbA1c decrease of 0.34% (p < 0.01) and BMI loss of 0.71 kg/m2 (p < 0.01), without significant interaction across age classes. In the younger group eGFR increased by 1.02 ml/min/year, while in the older group it declined by 0.42 ml/min/year (p = 0.08). Overall discontinuation rate during the follow-up period was similar across age groups (34.2% vs. 36.1%, long-rank p = 0.26). Genitourinary infections were the most frequent cause of treatment interruption (15.8% vs. 17.2%, p = 0.69) in both study groups, while persistent eGFR decline (4.4%) and orthostatic hypotension (1.7%) were only present in older age class. CONCLUSIONS: Efficacy, renal safety and tolerability of SGLT2i were similar in people >70 compared to 65-70 years of age, suggesting that a wider use should not be worried even in the elderly. However, some caution must be paid to the occurrence of persistent eGFR decline and orthostatic hypotension, especially in patients >70 years old.


Assuntos
Diabetes Mellitus Tipo 2 , Inibidores do Transportador 2 de Sódio-Glicose , Idoso , Diabetes Mellitus Tipo 2/diagnóstico , Diabetes Mellitus Tipo 2/tratamento farmacológico , Glucose , Humanos , Estudos Retrospectivos , Sódio , Inibidores do Transportador 2 de Sódio-Glicose/efeitos adversos
15.
Front Endocrinol (Lausanne) ; 12: 621680, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-33776919

RESUMO

Background: Maternal high blood glucose during pregnancy increases the risk for both maternal and fetal adverse outcomes. The mechanisms underlying the regulator effects of hyperglycemia on placental development and growth have not been fully illustrated yet. The placenta expresses high amounts of both insulin receptor (IR) and insulin-like growth factor receptor (IGF-1R). It has been reported that the placenta of diabetic women has structural and functional alterations and the insulin/IGF system is likely to play a role in these changes. The aim of the present study was to measure the content of IR and IGF-1R and their phosphorylation in the placenta of women with type 1 diabetes mellitus (T1D) or with gestational diabetes mellitus (GDM) compared to women with normal glucose tolerance (NGT) during pregnancy. Methods: Placental tissues were obtained from 80 Caucasian women with a singleton pregnancy. In particular, we collected placenta samples from 20 T1D patients, 20 GDM patients and 40 NGT women during pregnancy. Clinical characteristics and anthropometric measures of all women as well as delivery and newborn characteristics were recorded. Patients were also subdivided on the basis of peripartum glycemia either ≥90 mg/dl or <90 mg/dl, regardless of the diagnosis. Results: In T1D patients, a higher rate of adverse outcomes was observed. Compared to the GDM women, the T1D group showed significantly higher average capillary blood glucose levels at the third trimester of pregnancy and at peripartum, and higher third-trimester HbA1c values. In both T1D and GDM women, HbA1c values during pregnancy correlated with glucose values in the peripartum period (R-squared 0.14, p=0.02). A positive correlation was observed between phosphorylation of placental IR and the glucose levels during the third trimester of GDM and T1D pregnancy (R-squared 0.21, p=0.003). In the placenta of T1D patients, IGF-1R phosphorylation and IR isoform A (IR-A) expression were significantly increased (p=0.006 and p=0.040, respectively), compared to the NGT women. Moreover, IGF-1R phosphorylation was significantly increased (p<0.0001) in the placenta of patients with peripartum glucose >90 mg/dl, while IR-A expression was increased in those with peripartum blood glucose higher than 120 mg/dl (p=0.046). Conclusions: To the best of our knowledge, our study represents the first one in which an increased maternal blood glucose level during pregnancy is associated with an increased IGF-1R phosphorylation and IR-A expression in the placenta. Both these mechanisms can promote an excessive fetal growth.


Assuntos
Diabetes Mellitus Tipo 1/metabolismo , Diabetes Gestacional/metabolismo , Placenta/metabolismo , Gravidez em Diabéticas/metabolismo , Receptor IGF Tipo 1/metabolismo , Receptor de Insulina/metabolismo , Adulto , Glicemia/metabolismo , Feminino , Humanos , Gravidez , Transdução de Sinais/fisiologia , Adulto Jovem
16.
Diabetes Ther ; 12(5): 1313-1324, 2021 May.
Artigo em Inglês | MEDLINE | ID: mdl-33725276

RESUMO

INTRODUCTION: In persons with type 1 diabetes (T1D) insulin dosing can be adjusted based on trend arrows derived from continuous glucose monitoring (CGM). We propose a slide rule with narrower blood glucose intervals and more classes of insulin sensitivity than are available in current models. METHODS: The slide rule was tested in silico, in which a meal was simulated in 100 virtual subjects and the insulin bolus was calculated either in the standard way based on the insulin-to-carbohydrate ratio and the correction factor or according to the slide rule, following which the percentage time spent in range (70-180 mg/dl; %TIR), hypoglycemia (< 70 mg/dl; %THYPO), and hyperglycemia (> 180 mg/dl; %THYPER) was compared between the methods during the 4 h after the meal. Slide rule performance was also tested in real life by analyzing the same variables at during the 4 h postprandial period in 27 individuals with T1D. Only meals starting while the rate of change was at least 1 mg/dl per minute (increasing or decreasing) were considered for analysis. RESULTS: In silico, when the preprandial trend arrow was increasing, our slide rule reduced %THYPER and increased %TIR (p < 0.05), whereas when the preprandial trend arrow was decreasing, it reduced %THYPO and slightly increased %THYPER (p < 0.05). In real life, our slide rule kept subjects on target for 70.8 and 91.6% of postprandial time when preprandial trend arrows were increasing or decreasing, respectively. CONCLUSION: The proposed slide rule performed well both in silico and in real life, suggesting that it could be safely adopted by individuals with T1D to improve glucose control.

17.
Acta Diabetol ; 58(9): 1187-1197, 2021 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-33842997

RESUMO

AIMS: To assess the proportion of women with gestational diabetes (GDM) by performing postpartum Oral Glucose Tolerance Test (OGTT) and to identify GDM phenotypes at high-risk of postpartum dysglycemia (PPD). METHODS: Observational, retrospective, multicenter study involving consecutive GDM women. Recursive partitioning (RECPAM) analysis was used to identify distinct and homogeneous subgroups of women at different PPD risk. RESULTS: From a sample of 2,736 women, OGTT was performed in 941 (34.4%) women, of whom 217 (23.0%) developed PPD. Insulin-treated women having family history of diabetes represented the subgroup with the highest PPD risk (OR 5.57, 95% CI 3.60-8.63) compared to the reference class (women on diet with pre-pregnancy BMI < = 28.1 kg/m2). Insulin-treated women without family diabetes history and women on diet with pre-pregnancy BMI > 28.1 kg/m2 showed a two-fold PPD risk. Previous GDM and socioeconomic status represent additional predictors. Fasting more than post-prandial glycemia plays a predictive role, with values of 81-87 mg/dl (4.5-4.8 mmol/l) (lower than the current diagnostic GDM threshold) being associated with PPD risk. CONCLUSIONS: Increasing compliance to postpartum OGTT to prevent/delay PPD is a priority. Easily available characteristics identify subgroups of women more likely to benefit from preventive strategies. Fasting BG values during pregnancy lower than those usually considered deserve attention.


Assuntos
Diabetes Gestacional , Adulto , Glicemia , Diabetes Gestacional/diagnóstico , Diabetes Gestacional/epidemiologia , Feminino , Teste de Tolerância a Glucose , Humanos , Período Pós-Parto , Gravidez , Estudos Retrospectivos , Fatores de Risco
18.
Nutrients ; 12(4)2020 Apr 08.
Artigo em Inglês | MEDLINE | ID: mdl-32276339

RESUMO

Alzheimer's disease (AD) is the most common form of senile dementia, accounting for up to 70% of dementia cases. AD is a slowly progressive disease, which causes global mental deterioration by affecting various cognitive areas. A growing body of evidence has demonstrated that lifestyle habits and nutritional patterns could delay the natural course of the neurodegeneration process. There is no single dietary pattern unequivocally proven to prevent AD. Nevertheless, epidemiological data suggest that by adopting several dietary habits, especially if accompanied with a healthy lifestyle, the negative consequences of AD could potentially be delayed. Alongside with others, two specific eating patterns have been well investigated concerning their potential beneficial effect on cognitive status: the Mediterranean diet (MedDi) and the Ketogenic Diet (KD). Despite the different underlying mechanisms, both of them have demonstrated a fairly profitable role in reducing or delaying cognitive impairment. The aim of the present narrative review is to overview the existing research on the efficacy of MedDi and KD against AD-related cognitive decline, focusing on the proposed protective mechanisms of action. Although the current knowledge on this complex topic does not allow us, at this point, to make exhaustive conclusions, this information could be of help in order to better characterize the possible role of MedDi and KD as nonpharmacological therapies in the treatment of AD and, more generically, of neurodegenerative disorders.


Assuntos
Doença de Alzheimer/prevenção & controle , Disfunção Cognitiva/prevenção & controle , Dieta Cetogênica/métodos , Dieta Mediterrânea , Idoso , Idoso de 80 Anos ou mais , Doença de Alzheimer/etiologia , Cognição/fisiologia , Disfunção Cognitiva/etiologia , Fenômenos Fisiológicos da Nutrição do Idoso , Feminino , Humanos , Masculino , Pessoa de Meia-Idade
19.
Prim Care Diabetes ; 14(6): 639-644, 2020 12.
Artigo em Inglês | MEDLINE | ID: mdl-32527663

RESUMO

AIMS: To estimate the prevalence of chronic kidney disease (CKD) in patients with type 2 diabetes (T2D) in Finnish primary healthcare, and to evaluate the screening for CKD and the proportions of patients receiving antihyperglycemic and cardiovascular preventive medication. MATERIAL AND METHODS: T2D patients treated at the Rovaniemi Health Center, Finland during the years 2015-2019. Data included patient characteristics, blood pressure, HbA1c, lipid levels, kidney function and albuminuria, and medications prescribed. CKD was defined as estimated glomerular filtration rate (eGFR) <60 ml/min/1.72 m2 and/or albuminuria. RESULTS: The study population comprised of 5112 T2D patients with a mean (SD) age of 66.7 (13.0) years. Of these, 60.2% were screened for CKD with both eGFR and albuminuria, and 30.1% of these patients had CKD. The prevalence of moderately increased and severely increased albuminuria was 19.6% and 3.2%, respectively. A total of 57.0% of the study population received angiotensin-converting enzyme (ACE) inhibitors or angiotensin receptor blockers (ARB). CONCLUSIONS: Screening for CKD with both recommended measures (eGFR and albuminuria) was insufficiently performed among this T2D population. Additionally, just over half of the study population had been prescribed ACE inhibitors or ARB. These results suggest an incongruity between the gold standard of diabetes care and real-world clinical practice.


Assuntos
Antagonistas de Receptores de Angiotensina , Inibidores da Enzima Conversora de Angiotensina , Diabetes Mellitus Tipo 2 , Insuficiência Renal Crônica , Idoso , Albuminúria/diagnóstico , Albuminúria/epidemiologia , Inibidores da Enzima Conversora de Angiotensina/efeitos adversos , Diabetes Mellitus Tipo 2/diagnóstico , Diabetes Mellitus Tipo 2/tratamento farmacológico , Diabetes Mellitus Tipo 2/epidemiologia , Finlândia/epidemiologia , Taxa de Filtração Glomerular , Humanos , Rim/fisiologia , Prevalência , Atenção Primária à Saúde , Insuficiência Renal Crônica/diagnóstico , Insuficiência Renal Crônica/epidemiologia
20.
Life (Basel) ; 10(8)2020 Jul 28.
Artigo em Inglês | MEDLINE | ID: mdl-32731619

RESUMO

Obesity represents a major risk factor for metabolic disorders, but some individuals, "metabolically healthy" (MHO), show less clinical evidence of these complications, in contrast to "metabolically unhealthy" (MUO) individuals. The aim of this cross-sectional study is to assess the prevalence of the MHO phenotype in a cohort of 246 overweight/obese Italian children and adolescents, and to evaluate their characteristics and the role of insulin resistance. Homeostasis model assessment-insulin resistance (HOMA-IR), insulin sensitivity index (ISI), insulinogenic index (IGI) and disposition index (DI) were all calculated from the Oral Glucose Tolerance Test (OGTT). MHO was defined by either: (1) HOMA-IR < 2.5 (MHO-IRes), or (2) absence of the criteria for metabolic syndrome (MHO-MetS). The MHO prevalence, according to MHO-MetS or MHO-IRes criteria, was 37.4% and 15.8%, respectively. ISI was the strongest predictor of the MHO phenotype, independently associated with both MHO-IRes and MHO-MetS. The MHO-MetS group was further subdivided into insulin sensitive or insulin resistant on the basis of HOMA-IR (either < or ≥ 2.5). Insulin sensitive MHO-MetS patients had a better metabolic profile compared to both insulin resistant MHO-MetS and MUO-MetS individuals. These data underscore the relevance of insulin sensitivity to identifying, among young individuals with overweight/obesity, the ones who have a more favorable metabolic phenotype.

SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA