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1.
Eur J Intern Med ; 2024 Jun 05.
Artículo en Inglés | MEDLINE | ID: mdl-38845288

RESUMEN

AIMS: To assess whether and to what extent excess risk of all-cause death is reduced in individuals with type 2 diabetes by achieving optimal control of traditional cardiovascular risk factors. METHODS: This observational, prospective, cohort study enrolled 15,773 Caucasian patients in 19 Italian centres in 2006-2008. Participants were stratified according to the number of the following risk factors outside target: haemoglobin A1c, blood pressure, micro/macroalbuminuria, current smoking, LDL cholesterol, and triglycerides. All-cause mortality was retrieved for 15,656 patients (99.3 %) on 31 October 2015. RESULTS: Age-adjusted mortality rates and hazard ratios were significantly higher in the whole RIACE cohort (by ∼20 %) and in patients with (by ∼100 %) but not in those without prior cardiovascular disease (CVD), as compared with the coeval Italian general population. In all patients and in those without prior CVD, the relationship with mortality according to the number of risk factors outside target was J-shaped, an effect that was attenuated after either excluding "overtreated " patients, i.e., those with haemoglobin A1c ≤6.0 % on anti-hyperglycaemic agents causing hypoglycaemia and/or systolic blood pressure ≤120 mmHg on anti-hypertensive agents, or adjusting for "overtreatment". Conversely, in patients with prior CVD, mortality remained higher than in the general population in all categories and increased progressively from +70 % to +314 %, without J-effect. CONCLUSIONS: In patients with type 2 diabetes, optimal treatment of traditional cardiovascular risk factors completely eliminated the excess mortality risk versus the general population, provided that they were not "overtreated". However, this effect was observed only in participants without history of CVD. TRIAL REGISTRATION: ClinicalTrials.gov, NCT00715481, retrospectively registered 15 July 2008.

2.
Acta Diabetol ; 2024 May 07.
Artículo en Inglés | MEDLINE | ID: mdl-38714557

RESUMEN

AIMS: It is unclear whether type 2 diabetes diagnosed in young adulthood is associated with increased severity than that occurring later in life beyond longer lifetime exposure to hyperglycemia. This study aimed at assessing the independent association of age at type 2 diabetes diagnosis with all-cause mortality. METHODS: This prospective cohort study enrolled 15,773 Caucasian patients with type 2 diabetes in 19 Italian centers in 2006-2008. Cardiometabolic risk profile and presence of complications and comorbidities were assessed at baseline and participants were stratified by quartiles of age at diabetes diagnosis. All-cause mortality was verified on 31 October 2015. RESULTS: Valid information on vital status was retrieved for 15,656 participants (99.3%). Patients in the lowest quartile had the longest diabetes duration, the worst glycemic control and the highest prevalence of insulin treatment, obesity, atherogenic dyslipidemia, and smoking habits. All complications were inversely associated with age at diabetes diagnosis after adjustment for age and sex, but not after further adjustment for diabetes duration. Percentages of death, Kaplan-Meier estimates, and unadjusted hazard ratios and mortality rates increased from the lowest to the highest quartile. In contrast, when adjusting for age and sex, participants falling in the lowest quartile, showed the highest mortality risk [hazard ratio 1.321 (95% confidence interval 1.196-1.460), P < 0.0001]. However, differences among quartiles disappeared after adjustment for diabetes duration, complications/comorbidities, or other cardiovascular risk factors. CONCLUSIONS: Type 2 diabetes onset in young adulthood is associated with increased mortality that is mainly driven by longer diabetes duration favoring the development of complications. TRIAL REGISTRATION: ClinicalTrials.gov, NCT00715481, retrospectively registered 15 July, 2008.

3.
QJM ; 2024 Jan 10.
Artículo en Inglés | MEDLINE | ID: mdl-38200621

RESUMEN

BACKGROUND: Estimated pulse wave velocity (ePWV), a surrogate measure of arterial stiffness, was shown to independently predict morbidity and mortality from cardiovascular disease and other causes in both the general population and high-risk individuals. However, in people with type 2 diabetes, it is unknown whether ePWV adds prognostic information beyond the parameters used for calculating it. AIMS: To assess the independent association of ePWV with all-cause mortality in individuals with type 2 diabetes. DESIGN: Prospective cohort study that enrolled 15,773 patients in 19 Italian centres in 2006-2008. METHODS: ePWV was calculated from a regression equation using age and mean blood pressure (BP). All-cause mortality was retrieved for 15,656 patients in 2015. RESULTS: Percentage and rate of deaths, Kaplan-Meier estimates, and unadjusted hazard ratios increased from quartile I to quartile IV of ePWV. After adjustment for age, sex, BP levels and anti-hypertensive treatment, the strength of association decreased but mortality risk remained significantly higher for quartiles II (+34%), III (+82%), and IV (+181%) versus quartile I and was virtually unchanged when further adjusting for other cardiovascular risk factors and complications/comorbidities. Each m·s - 1 increase in ePWV was associated with an increased adjusted risk of death in the whole cohort (+53%) and in participants with (+52%) and without (+65%) cardiorenal complications. Moreover, ePWV significantly improved prediction of mortality risk over cardiovascular risk factors and complications/comorbidities, though the net increase was modest. CONCLUSIONS: These findings suggest that ePWV may represent a simple and inexpensive tool for providing prognostic information beyond traditional cardiovascular risk factors. TRIAL REGISTRATION: ClinicalTrials.gov, NCT00715481, https://clinicaltrials.gov/ct2/show/NCT00715481.

4.
Cardiovasc Diabetol ; 23(1): 34, 2024 01 13.
Artículo en Inglés | MEDLINE | ID: mdl-38218843

RESUMEN

BACKGROUND: Foot ulcers and/or infections are common long-term complications of diabetes and are associated with increased mortality, especially from cardiovascular disease, though only a few studies have investigated the independent contribution of these events to risk of death. This study aimed at assessing the association of history of diabetic foot with all-cause mortality in individuals with type 2 diabetes, independent of cardiovascular risk factors, other complications, and comorbidities. METHODS: This prospective cohort study enrolled 15,773 Caucasian patients in 19 Italian centers in the years 2006-2008. Prior lower extremity, coronary, and cerebrovascular events and major comorbidities were ascertained by medical records, diabetic retinopathy by fundoscopy, diabetic kidney disease by albuminuria and estimated glomerular filtration rate, cardiovascular risk factors by standard methods. All-cause mortality was retrieved for 15,656 patients on 31 October 2015. RESULTS: At baseline, 892 patients (5.7%) had a history of diabetic foot, including ulcer/gangrene and/or amputation (n = 565; 3.58%), with (n = 126; 0.80%) or without (n = 439; 2.78%) lower limb revascularization, and revascularization alone (n = 330; 2.09%). History of diabetic foot was associated with all-cause death over a 7.42-year follow-up (adjusted hazard ratio, 1.502 [95% confidence interval, 1.346-1.676], p < 0.0001), independent of confounders, among which age, male sex, smoking, hemoglobin A1c, current treatments, other complications, comorbidities and, inversely, physical activity level and total and HDL cholesterol were correlated independently with mortality. Both ulcer/gangrene and amputation alone were independently associated with death, with a higher strength of association for amputation than for ulcer/gangrene (1.874 [1.144-3.070], p = 0.013 vs. 1.567 [1.353-1.814], p < 0.0001). Both ulcer/gangrene/amputation and lower limb revascularization alone were independently associated with death; mortality risk was much higher for ulcer/gangrene/amputation than for revascularization (1.641 [1.420-1.895], p < 0.0001 vs. 1.229 [1.024-1.475], p = 0.018) and further increased only slightly for combined ulcer/gangrene/amputation and revascularization (1.733 [1.368-2.196], p < 0.0001). CONCLUSIONS: In patients with type 2 diabetes, an history of diabetic foot event, including ulcer/gangrene, amputation, and lower limb revascularization, was associated with a ~ 50% increased risk of subsequent death, independent of cardiovascular risk factors, other complications and severe comorbidities, which were also significantly associated with mortality. The association with mortality was greatest for amputation, whereas that for revascularization alone was relatively modest. TRIAL REGISTRATION: ClinicalTrials.gov, NCT00715481, retrospectively registered 15 July, 2008.


Asunto(s)
Enfermedades Cardiovasculares , Diabetes Mellitus Tipo 2 , Pie Diabético , Insuficiencia Renal , Humanos , Masculino , Enfermedades Cardiovasculares/diagnóstico , Enfermedades Cardiovasculares/terapia , Enfermedades Cardiovasculares/complicaciones , Pie Diabético/diagnóstico , Pie Diabético/epidemiología , Pie Diabético/terapia , Gangrena/complicaciones , Italia/epidemiología , Estudios Prospectivos , Factores de Riesgo , Úlcera/complicaciones , Femenino
5.
Sensors (Basel) ; 23(19)2023 Sep 23.
Artículo en Inglés | MEDLINE | ID: mdl-37836872

RESUMEN

Patients affected with type 1 diabetes and a non-negligible number of patients with type 2 diabetes are insulin dependent. Both the injection technique and the choice of the most suitable needle are fundamental for allowing them to have a good injection experience. The needles may differ in several parameters, from the length and diameter, up to the forces required to perform the injection and to some geometrical parameters of the needle tip (e.g., number of facets or bevels). The aim of the research is to investigate whether an increased number of bevels could decrease forces and energy involved in the insertion-extraction cycle, thus potentially allowing patients to experience lower pain. Two needle variants, namely, 31 G × 5 mm and 32 G × 4 mm, are considered, and experimental tests are carried out to compare 3-bevels with 5-bevels needles for both the variants. The analysis of the forces and energy for both variants show that the needles with 5 bevels require a statistically significant lower drag or sliding force (p-value = 0.040 for the 31 G × 5 mm needle and p-value < 0.001 for 32 G × 4 mm), extraction force (p-value < 0.001 for both variants), and energy (p-value < 0.001 for both variants) during the insertion-extraction cycle. As a result, 3-bevels needles do not have the same functionality of 5-bevels needles, show lower capacity of drag and extraction, and can potentially be related to more painful injection experience for patients.


Asunto(s)
Diabetes Mellitus Tipo 1 , Diabetes Mellitus Tipo 2 , Humanos , Diabetes Mellitus Tipo 2/tratamiento farmacológico , Inyecciones Subcutáneas , Diabetes Mellitus Tipo 1/tratamiento farmacológico , Insulina , Dolor , Agujas
6.
Diabetes Obes Metab ; 25(9): 2650-2658, 2023 09.
Artículo en Inglés | MEDLINE | ID: mdl-37334519

RESUMEN

AIM: To evaluate the relationship of genetic variability of adiponectin (ADIPOQ), leptin (LEP) and leptin receptor (LEPR) genes with glucose-insulin system and markers of subclinical atherosclerosis (ATS) in patients with newly diagnosed type 2 diabetes. MATERIALS AND METHODS: In 794 subjects we performed: 1) euglycemic hyperinsulinemic clamp to assess insulin sensitivity; 2) mathematical modelling of a 5h-OGTT to estimate ß-cell function; 3) resting ECG; 4) carotid artery and lower limb artery eco-doppler sonography to identify ATS; 5) genotyping of tag-SNPs within ADIPOQ, LEP and LEPR gene. RESULTS: Regression analyses showed: 1) adiponectin levels were negatively associated with BMI, waist-to-hip ratio and triglycerides and positively with HDL and insulin sensitivity (p-all<0.03); 2) leptin levels were positively associated with BMI, HDL-cholesterol and plasma triglycerides and negatively with insulin sensitivity (p-all<0.001). Two SNPs (rs1501299 and rs2241767) within ADIPOQ gene were associated with circulating levels of adiponectin. The ADIPOQ-GAACA haplotype was associated with plasma adiponectin (p=0.034; ß=-0.24), ECG abnormalities (p=0.012; OR=2.76), carotid ATS (p=0.025; OR=2.00) and peripheral limb artery ATS (p=0.032; OR=1.90). The LEP-CTA haplotype showed an association with ischemic ECG abnormalities (p=0.017; OR=2.24). Finally, LEPR-GAACGG was associated with circulating leptin (p=0.005; ß=-0.31) and worst ß-cell function (p=0.023; ß=-15.10). Omnibus haplotype analysis showed that ADIPOQ haplotypes were associated with levels of adiponectin and common carotid artery ATS, LEP with peripheral limb artery ATS, whereas LEPR haplotypes influenced circulating levels of leptin. CONCLUSIONS: Results of this study reinforce knowledge on adipokines' role in regulating glucose metabolism; in particular highlighted the potential atherogenic role of leptin and the anti atherogenic role of adiponectin.


Asunto(s)
Aterosclerosis , Diabetes Mellitus Tipo 2 , Resistencia a la Insulina , Insulinas , Humanos , Leptina/genética , Adiponectina/genética , Diabetes Mellitus Tipo 2/complicaciones , Diabetes Mellitus Tipo 2/genética , Resistencia a la Insulina/genética , Aterosclerosis/diagnóstico , Aterosclerosis/genética , Triglicéridos , Glucosa
8.
Cardiovasc Diabetol ; 22(1): 105, 2023 05 04.
Artículo en Inglés | MEDLINE | ID: mdl-37143089

RESUMEN

OBJECTIVE: We investigated, using population-based data, whether worse autonomic function, estimated from lower 24-hour heart rate variability (HRV), was associated with beta cell function, assessed from beta cell response during an oral glucose tolerance test (OGTT). RESEARCH DESIGN AND METHODS: We used cross-sectional data from The Maastricht Study, a population-based cohort study (N = 2,007; age, mean ± SD:60 ± 8 years; 52% men; and 24% with type 2 diabetes). We used linear regression analyses with adjustment for potential confounders (demographic, cardiovascular, and lifestyle factors) to study the associations of time- and frequency-domain HRV (composite scores) with overall beta cell response (estimated from a composite score calculated from: C-peptidogenic index, overall insulin secretion, beta cell glucose sensitivity, beta cell potentiation factor, and beta cell rate sensitivity). In addition, we tested for interaction by sex and glucose metabolism status. RESULTS: After full adjustment, lower time- and frequency-domain HRV was significantly associated with lower overall beta cell response composite score (standardized beta, -0.055 [-0.098; -0.011] and - 0.051 [-0.095; -0.007], respectively). These associations were not modified by sex and there was no consistent pattern of interaction by glucose metabolism status. CONCLUSION: The present etiological study found that worse autonomic function, estimated from lower HRV, was associated with worse beta cell function, estimated from a composite score in a population-based sample which covered the entire spectrum of glucose metabolism. Hence, autonomic dysfunction may contribute to beta cell dysfunction and, ultimately, to the alteration of glucose metabolism status from normal glucose metabolism to prediabetes and type 2 diabetes.


Asunto(s)
Diabetes Mellitus Tipo 2 , Carga Glucémica , Masculino , Humanos , Persona de Mediana Edad , Anciano , Femenino , Diabetes Mellitus Tipo 2/diagnóstico , Glucemia/metabolismo , Frecuencia Cardíaca , Estudios de Cohortes , Estudios Transversales , Glucosa
9.
Diabetes Metab ; 49(2): 101413, 2023 03.
Artículo en Inglés | MEDLINE | ID: mdl-36460217

RESUMEN

AIMS: To assess whether the presence and grade of diabetic retinopathy (DR) predict all-cause mortality, independent of risk factors for cardiovascular disease (CVD) and other complications, including diabetes-related kidney disease (DKD) and CVD, in individuals with type 2 diabetes mellitus. METHODS: Prospective cohort study that enroled 15,773 patients in 19 Italian centers in 2006-2008. DR ascertained by fundoscopy, DKD by albuminuria and estimated glomerular filtration rate, and prior CVD by hospital discharge records. All-cause mortality retrieved for 15,656 patients on 31 October 2015. RESULTS: The adjusted risk of death was increased in patients with any DR (hazard ratio, 1.136 [95% confidence interval, 1.054;1.224] P < 0.0001), advanced DR, including severe non-proliferative and proliferative DR and diabetic macula edema (1.213 [1.097;1.340] P < 0.0001), and especially proliferative DR alone (1.381 [1.207;1.580] P < 0.0001), compared with those without DR. The impact of DR was more evident in patients without than in those with DKD or CVD. Mortality risk was increased in participants with DR alone, though much less than in those with DKD or CVD alone and particularly in those with both DR and DKD or CVD. DR grade was related to mortality in individuals without DKD or CVD, whereas it conferred no additional risk to those with albuminuric or nonalbuminuric DKD or established CVD. CONCLUSIONS: In patients with type 2 diabetes mellitus, the excess mortality risk conferred by DR is relatively small and higher in those without DKD and CVD, suggesting that it may be mediated by the concurrent presence of these complications, even at a subclinical level.


Asunto(s)
Enfermedades Cardiovasculares , Diabetes Mellitus Tipo 2 , Nefropatías Diabéticas , Retinopatía Diabética , Humanos , Diabetes Mellitus Tipo 2/complicaciones , Estudios Prospectivos , Factores de Riesgo , Retinopatía Diabética/etiología , Enfermedades Cardiovasculares/etiología
10.
Diabetologia ; 66(4): 610-613, 2023 04.
Artículo en Inglés | MEDLINE | ID: mdl-36547691

RESUMEN

An overwhelming number of meta-analyses and reviews are published by scientific journals. In part this may reflect some preference of editors and publishers for these types of papers, which are more frequently cited and can increase the impact factor of their journals. Meta-analyses and reviews are also attractive for investigators looking for a greater chance of having successful publications with several citations, and therefore an improved personal h-index. This greater 'promise of success' might have a deleterious effect on the intellectual maturation of investigators, particularly early career investigators, who might neglect original research and concentrate their efforts on meta-analyses and reviews. However, while meta-analyses and reviews are useful for emphasising data and disseminating concepts, progress in science requires original ideas, original experiments and original papers. 'Analysts' and 'novelists' are welcome, but 'scientists' are indispensable.


Asunto(s)
Benchmarking , Cognición , Literatura de Revisión como Asunto , Metaanálisis como Asunto
11.
Cardiovasc Diabetol ; 21(1): 266, 2022 12 02.
Artículo en Inglés | MEDLINE | ID: mdl-36461034

RESUMEN

BACKGROUND: An "obesity paradox" for mortality has been shown in chronic disorders such as diabetes, and attributed to methodological bias, including the use of body mass index (BMI) for obesity definition. This analysis investigated the independent association of BMI versus surrogate measures of central adiposity with all-cause mortality in individuals with type 2 diabetes. METHODS: The Renal Insufficiency And Cardiovascular Events Italian Multicentre Study is a prospective cohort study that enrolled 15,773 patients in 19 Italian centres in 2006-2008. Exposures were BMI and the surrogate measures of central adiposity waist circumference (WC), waist-to-height ratio (WHtR), and A Body Shape Index (ABSI). Vital status was retrieved on 31 October 2015 for 15,656 patients (99.3%), RESULTS: Age- and sex-adjusted hazard ratios and 95% confidence intervals were significantly higher in BMI-based underweight (1.729 [1.193-2.505), P = 0.004), moderately obese (1.214 [1.058-1.392), P = 0.006) and severely obese (1.703 [1.402-2.068), P < 0.0001), lower in overweight (0.842 [0.775-0.915), P < 0.0001) and similar in mildly obese (0.950 [0.864-1.045), P = 0.292), compared to normal-weight individuals. When further adjusting for smoking, physical activity (PA), and comorbidities, risk was lower also in mildly obese versus normal-weight patients. The BMI-mortality relationship did not change after sequentially excluding ever smokers, individuals with comorbidities, and those died within two years from enrollment and when analyzing separately participants below and above the median age. Conversely, a paradox relationship was observed among inactive/moderately inactive, but not moderately/highly active patients. Mortality risk adjusted for age, gender, smoking, PA and comorbidities was significantly higher in the highest tertile of WC (1.279 [1.089-1.501], P = 0.003), WHtR (1.372 [1.165-1.615], P < 0.0001), and ABSI (1.263 [1.067-1.495], P = 0.007) versus the lowest tertile. However, risk was lower in the intermediate versus lowest tertile for WC (0.823 [0.693-0.979], P = 0.028), similar for WHtR, and higher, though not significantly, for ABSI. CONCLUSIONS: An "overweight paradox" remained after controlling for age, smoking, and comorbidities, arguing against a collider bias or reverse causation. However, it could be partly explained by confounding from PA level, possibly through its impact on lean mass and cardiorespiratory fitness. No obesity paradox was observed with WHtR and especially ABSI, which predicted mortality risk associated with central adiposity better than WC. Trial registration ClinicalTrials.gov, NCT00715481, 15 July, 2008.


Asunto(s)
Diabetes Mellitus Tipo 2 , Humanos , Índice de Masa Corporal , Diabetes Mellitus Tipo 2/diagnóstico , Sobrepeso , Adiposidad , Estudios Prospectivos , Obesidad Abdominal/diagnóstico , Obesidad/diagnóstico
12.
Diabetes Res Clin Pract ; 190: 109984, 2022 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-35803315

RESUMEN

AIMS: The aim of this study is to assess the role of diabetes as a cause of death through different epidemic waves of COVID-19. METHODS: The annual percentage change in age-standardized rates (APC) was estimated for diabetes as the underlying (UCOD) and as multiple causes of death (MCOD) in 2008-2019. Diabetes-related deaths in 2020 were compared to the 2018-2019 average. SARIMA models were applied to monthly excess in mortality considering seasonality and long-term trends. RESULTS: 2018-2019-Age-standardized mortality rates decreased, especially among females (MCOD: APC -2.49, 95%CI -3.01/-1.97%). In 2020, deaths increased by 19% (95%CI 13-25%) for UCOD, and by 27% (95%CI 24-30%) for MCOD. Diabetes and COVID-19 accounted for 74% of such excess. During the first epidemic wave, the increase in observed rates vs predicted by the model was larger in males (March +39%, April +46%) than in females (+30% and +32%). In the second wave, a huge excess of similar magnitude was observed in the two sexes; rates in December exceeded those predicted by more than 100%. CONCLUSIONS: The COVID-19 pandemic abruptly interrupted a long-term declining trend in mortality associated to diabetes. MCOD analyses are warranted to fully estimate the impact of epidemic waves on diabetes-related mortality.


Asunto(s)
COVID-19 , Diabetes Mellitus , COVID-19/epidemiología , Causas de Muerte , Diabetes Mellitus/epidemiología , Femenino , Humanos , Masculino , Mortalidad , Pandemias
13.
Acta Diabetol ; 59(10): 1369-1381, 2022 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-35902419

RESUMEN

AIMS: The 2019 and 2021 European Society of Cardiology (ESC) classifications stratified patients with type 2 diabetes into three categories according to the 10-year risk of death from atherosclerotic cardiovascular disease (ASCVD). The very high-risk category included individuals with established ASCVD, target organ damage (TOD), and/or, in the 2019 classification only, ≥ 3 additional ASCVD risk factors. We assessed risk of all-cause mortality according to the two ESC classifications in the Renal Insufficiency And Cardiovascular Events cohort. METHODS: Participants (n = 15,773) were stratified based on the presence of ASCVD, TOD, and ASCVD risk factors at baseline (2006-2008). Vital status was retrieved in 2015. RESULTS: Less than 1% of participants fell in the moderate-risk category. According to the 2019 classification, ~ 1/3 fell in the high-risk and ~ 2/3 in the very high-risk category, whereas the opposite occurred with the 2021 classification. Mortality risk increased across categories according to both classifications. Among very high-risk patients, mortality was much lower in those with ≥ 3 additional ASCVD risk factors and almost equal in those with TOD and ASCVD ± TOD, using the 2019 classification, whereas it was much higher in those with ASCVD + TOD and, to a lesser extent, TOD only than in those with ASCVD only, using the 2021 classification. CONCLUSIONS: The negligible number of moderate-risk patients suggests that these classifications might overestimate risk of ASCVD death. Downgrading patients with ≥ 3 additional ASCVD risk factors to the high-risk category is consistent with mortality data. Risk of death is very high in the presence of TOD irrespective of established ASCVD. TRIAL REGISTRATION: ClinicalTrials.gov, NCT00715481.


Asunto(s)
Cardiología , Enfermedades Cardiovasculares , Diabetes Mellitus Tipo 2 , Insuficiencia Renal , Enfermedades Cardiovasculares/epidemiología , Enfermedades Cardiovasculares/etiología , Diabetes Mellitus Tipo 2/complicaciones , Humanos , Italia/epidemiología , Insuficiencia Renal/complicaciones , Insuficiencia Renal/epidemiología , Medición de Riesgo , Factores de Riesgo
14.
Diabetes Metab Res Rev ; 38(7): e3558, 2022 10.
Artículo en Inglés | MEDLINE | ID: mdl-35717608

RESUMEN

AIMS: We investigated quantitative expression, mutual aggregation and relation with hyperglycemia of insulin resistance (IR) and beta-cell dysfunction (BCD) in newly diagnosed type 2 diabetes. METHODS: We assessed IR with euglycemic hyperinsulinemic clamp and BCD with modelled glucose/C-peptide response to oral glucose in 729 mostly drug-naïve patients. We measured glycated hemoglobin, pre-prandial, post-prandial and meal-related excursion of blood glucose. RESULTS: IR was found in 87.8% [95% confidence intervals 85.4-90.2] and BCD in 90.0% [87.8-92.2] of subjects, ranging from mild to moderate or severe. Approximately 20% of subjects had solely one defect: BCD 10.8% [8.6-13.1] or IR 8.6% [6.6-10.7]. Insulin resistance and BCD aggregated in most subjects (79.1% [76.2-82.1]). We arbitrarily set nine possible combinations of mild, moderate or severe IR and mild, moderate or severe BCD, finding that each had a similar frequency (∼10%). In multiple regression analyses parameters of glucose control were related more strongly with BCD than with IR. CONCLUSIONS: In newly-diagnosed type 2 diabetes, IR and BCD are very common with a wide range of expression but no specific pattern of aggregation. Beta-cell dysfunction is likely to play a greater quantitative role than IR in causing/sustaining hyperglycemia in newly-diagnosed type 2 diabetes.


Asunto(s)
Diabetes Mellitus Tipo 2 , Hiperglucemia , Resistencia a la Insulina , Glucemia/análisis , Péptido C , Glucosa , Hemoglobina Glucada/análisis , Humanos , Insulina , Resistencia a la Insulina/fisiología
15.
Artículo en Inglés | MEDLINE | ID: mdl-35538810

RESUMEN

BACKGROUND: Prader-Willi syndrome is the most frequent genetic cause of obesity and is often complicated by glucose metabolism alterations. Conventional therapies prescribed for type 2 diabetes frequently failed to achieve adequate glycemic control in patients with Prader-Willi syndrome. Beneficial effects of glucagon like peptide-1 receptor agonists exenatide and liraglutide have been reported for the management of type 2 diabetes in Prader-Willi syndrome, but no data are currently available in this population on the use of semaglutide. CASE PRESENTATION: We report for the first time the use of semaglutide 1 mg per week in a 33-yearold man with Prader-Will syndrome complicated by poorly controlled diabetes and severe obesity. After 12 months of semaglutide treatment, we observed an important reduction in glycated hemoglobin levels (11.1% to 7.2%) and body weight (99.5 kg to 94.3 kg), with a notable decrease in fat mass and insulin requirements. Interestingly, our patient had already tried liraglutide therapy in adjunction to metformin and insulin therapy, reporting no substantial efficacy. CONCLUSION: The beneficial effects of semaglutide on glycemic control and weight reduction provide a promising treatment for diabetes and obesity in Prader-Willi syndrome, even where other glucagons like peptide-1 receptor agonists have failed. Further studies are required to confirm the efficacy and safety of semaglutide in patients with Prader-Willi syndrome.


Asunto(s)
Diabetes Mellitus Tipo 2 , Síndrome de Prader-Willi , Adulto , Diabetes Mellitus Tipo 2/complicaciones , Diabetes Mellitus Tipo 2/tratamiento farmacológico , Péptidos Similares al Glucagón/farmacología , Péptidos Similares al Glucagón/uso terapéutico , Control Glucémico , Humanos , Hipoglucemiantes/farmacología , Insulina , Liraglutida/efectos adversos , Masculino , Obesidad/complicaciones , Obesidad/tratamiento farmacológico , Síndrome de Prader-Willi/complicaciones , Síndrome de Prader-Willi/tratamiento farmacológico , Síndrome de Prader-Willi/metabolismo , Pérdida de Peso
17.
Diabet Med ; 39(4): e14719, 2022 04.
Artículo en Inglés | MEDLINE | ID: mdl-34657317

RESUMEN

AIM: Transition from paediatric to adult care is a critical step in life of emerging adults with type 1 diabetes. We assessed, according to indicators established by panel of experts, clinical, socio-demographic and psychosocial factors in young adults with type 1 diabetes throughout structured transition to investigate the associations, if any, with HbA1c value at time of transition. METHODS: The "Verona Diabetes Transition Project" started in January 2009: a structured transition program, shared between paediatric and adult clinic, was organised with a multi-disciplinary team. All young adults underwent a semi-structured interview by a psychologist, before transition. Minimum age for transition was 18 years. RESULTS: 222 (M/F = 113/109) young adults moved to adult care from January 2009 to March 2020. The mean time between the last paediatric visit and the first adult visit ranged from 13.6 ± 6.1 months at the beginning of the project to 3.6 ± 11.5 months over the following years. At first adult clinic attendance, women showed higher HbA1c values (70 ± 11 mmol/mol vs. 65 ± 7 mmol/mol or 8.57% ± 1.51% vs. 8.14% ± 0.98%, p = 0.01), higher frequency of disorders of eating behaviours (15.6% vs. 0%, p < 0.001) and poor diabetes acceptance (23.9% vs. 9.7%, p < 0.001) than men. Mediation analyses showed a significant mediating role of glucose control 2 years before transition in the relationship between poor diabetes acceptance and glucose control at transition. CONCLUSIONS: This study demonstrated a delay reduction in establishing care with an adult provider and suggested the potential role of low diabetes acceptance on glycemic control at transition. Further studies are needed to confirm and expand these data.


Asunto(s)
Diabetes Mellitus Tipo 1 , Transición a la Atención de Adultos , Adolescente , Glucemia , Niño , Diabetes Mellitus Tipo 1/epidemiología , Diabetes Mellitus Tipo 1/psicología , Diabetes Mellitus Tipo 1/terapia , Femenino , Hemoglobina Glucada/análisis , Humanos , Masculino , Adulto Joven
18.
J Clin Endocrinol Metab ; 107(5): e2047-e2055, 2022 04 19.
Artículo en Inglés | MEDLINE | ID: mdl-34951635

RESUMEN

CONTEXT: Recent data suggested that 11-oxygenated androgens may be the preponderant circulating androgens in women with PCOS. However, the pathophysiological significance of these hormones remains unclear. OBJECTIVE: The aim of this study was to evaluate the relationships between serum 11-OH testosterone (11-OHT) and 11-keto testosterone (11-KetoT) and clinical and biochemical hyperandrogenism, as well as the metabolic parameters, in women with PCOS. METHODS: The main classic and 11-oxygenated androgens were measured by LC-MS/MS and direct equilibrium dialysis in 123 women with PCOS, diagnosed according to the Rotterdam criteria, and 38 healthy controls. Insulin sensitivity was assessed by hyperinsulinemic euglycemic clamp. RESULTS: Serum 11-oxygenated androgens were higher in women with PCOS than in controls. Elevated levels of 11-OHT and 11-KetoT were found in 28.5% and 30.1% of PCOS women, respectively, whereas free testosterone (FT) was increased in 61.0% of them. Serum 11-oxygenated androgens showed a limited performance in recognizing women with classically defined hyperandrogenism. Unlike FT, 11-oxygenated androgens did not show significant relationships with anthropometric and metabolic parameters, except for a direct association with insulin sensitivity. In multivariable analysis, 11-OHT and 11-KetoT, directly, and FT, inversely, remained significant independent predictors of insulin sensitivity. CONCLUSIONS: Serum levels of 11-oxygenated androgens are higher in women with PCOS than in controls. However, these hormones show a poor performance in recognizing women with hyperandrogenism, as currently defined. The relationships of these androgens with insulin sensitivity strongly differ from that of FT, suggesting a different role of classic and 11-oxygenated androgens in the pathophysiology of PCOS.


Asunto(s)
Hiperandrogenismo , Resistencia a la Insulina , Síndrome del Ovario Poliquístico , Andrógenos , Cromatografía Liquida , Femenino , Humanos , Masculino , Síndrome del Ovario Poliquístico/complicaciones , Espectrometría de Masas en Tándem , Testosterona
19.
Diabetes Ther ; 12(10): 2783-2794, 2021 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-34514554

RESUMEN

BACKGROUND: Gastrointestinal (GI) events are the most frequent treatment-emergent adverse events (TEAEs) reported for glucagon-like peptide-1 receptor agonist therapies. This post hoc analysis of the AWARD-11 phase 3 trial assessed the GI tolerability of dulaglutide at once-weekly doses of 1.5, 3.0, and 4.5 mg. METHODS: The AWARD-11 trial randomized patients to once-weekly dulaglutide 1.5 mg (n = 612), 3.0 mg (n = 616), or 4.5 mg (n = 614) for 52 weeks. Patients started on dulaglutide 0.75 mg for 4 weeks before escalating stepwise every 4 weeks until the final randomized dose was reached. This study analyzes the onsets, incidences, prevalences, and severities of nausea, vomiting, and diarrhea events reported through 52 weeks. RESULTS: The highest incidences of nausea (≤ 8%), vomiting (≤ 2%), and diarrhea (≤ 4%) were primarily observed soon after the initiation of dulaglutide treatment at 0.75 mg. Incidence then declined throughout the remainder of the study, even with dose escalation to 1.5, 3.0, and 4.5 mg. Most of these GI TEAEs were mild to moderate in severity, with severe nausea, vomiting, or diarrhea events occurring in ≤ 0.6% of patients. Treatment discontinuation due to nausea was low across treatment groups (≤ 1.5%). CONCLUSIONS: The tolerability profiles of dulaglutide 3.0 mg and 4.5 mg were consistent with that of the 1.5-mg dose. Patients experiencing GI events were most likely to do so within 2 weeks of treatment initiation, and few patients experienced a new GI event after escalating to the 3.0-mg or 4.5-mg dose. Severe events were infrequent, and when they did occur, no relationship with dose at time of event was observed. Supplementary file1 (MP4 33880 kb).


Dulaglutide is a glucagon-like peptide 1 receptor agonist (GLP-1 RA) prescribed for the treatment of type 2 diabetes (T2D). The most frequently reported side effects of GLP-1 RAs are nausea, vomiting, or diarrhea. This analysis of a 52-week study in adult patients with T2D details the tolerability of dulaglutide injected once weekly at a dose of 1.5 mg, 3 mg, or 4.5 mg, as assessed by looking at the nausea, vomiting, and diarrhea events reported during the study. All patients started dulaglutide at 0.75 mg before escalating to 1.5 mg after 4 weeks. Depending on the group they were randomly assigned to, the patients then either remained on the 1.5-mg dose, escalated to 3 mg after another 4 weeks and remained on this dose, or escalated further to 4.5 mg after another 4 weeks. The minority of patients who experienced nausea, vomiting, or diarrhea events (less than 16% of patients in each case) generally did so at the beginning of treatment, when all groups were taking the same dose (0.75 mg). Episodes of nausea, vomiting, or diarrhea then became less frequent, even as patients escalated to each of the higher doses. Most of these events were mild to moderate in severity, and most did not cause patients to stop taking the treatment. In general, this analysis shows that, for the minority of patients who experienced nausea, vomiting, or diarrhea, these events were most likely to happen shortly after starting treatment and lessened over time, even as patients escalated to higher dulaglutide doses.

20.
Nutr Metab Cardiovasc Dis ; 31(9): 2612-2618, 2021 08 26.
Artículo en Inglés | MEDLINE | ID: mdl-34348880

RESUMEN

BACKGROUND AND AIMS: Diabetes conveys an increased risk of infectious diseases and related mortality. We investigated risk of ascertained SARS-CoV-2 infection in diabetes subjects from the Veneto Region, Northeastern Italy, as well as the risk of being admitted to hospital or intensive care unit (ICU), or mortality for COVID-19. METHODS AND RESULTS: Diabetic subjects were identified by linkage of multiple health archives. The rest of the population served as reference. Information on ascertained infection by SARS-CoV-2, admission to hospital, admission to ICU and mortality in the period from February 21 to July 31, 2020 were retrieved from the regional registry of COVID-19. Subjects with ascertained diabetes were 269,830 (55.2% men; median age 72 years). Reference subjects were 4,681,239 (men 48.6%, median age 46 years). Ratios of age- and gender-standardized rates (RR) [95% CI] for ascertained infection, admission to hospital, admission to ICU and disease-related death in diabetic subjects were 1.31 [1.19-1.45], 2.11 [1.83-2.44], 2.45 [1.96-3.07], 1.87 [1.68-2.09], all p < 0.001. The highest RR of ascertained infection was observed in diabetic men aged 20-39 years: 1.90 [1.04-3.21]. The highest RR of ICU admission and death were observed in diabetic men aged 40-59 years: 3.47 [2.00-5.70] and 5.54 [2.23-12.1], respectively. CONCLUSIONS: These data, observed in a large population of ∼5 million people of whom ∼250,000 with diabetes, show that diabetes not only conveys a poorer outcome in COVID-19 but also confers an increased risk of ascertained infection from SARS-CoV-2. Men of young or mature age have the highest relative risks.


Asunto(s)
COVID-19/etiología , Complicaciones de la Diabetes/etiología , SARS-CoV-2 , Adulto , Factores de Edad , Anciano , Femenino , Hospitalización , Humanos , Unidades de Cuidados Intensivos , Masculino , Persona de Mediana Edad , Adulto Joven
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