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1.
Rheumatology (Oxford) ; 63(4): 1030-1038, 2024 Apr 02.
Artigo em Inglês | MEDLINE | ID: mdl-37294733

RESUMO

OBJECTIVES: Cardiovascular disease is a major cause of morbidity and mortality in Antiphospholipid syndrome (APS). Arterial stiffness (ArS) has emerged as a predictor of future cardiovascular events in the general population. We aimed to assess ArS in patients with thrombotic APS versus diabetes mellitus (DM) and healthy controls (HC) and identify predictors of increased ArS in APS. METHODS: ArS was evaluated by carotid-femoral pulse wave velocity (cfPWV) and augmentation index normalized to 75 beats/min (AIx@75) using the SphygmoCor device. Participants also underwent carotid/femoral ultrasound for atherosclerotic plaque detection. We used linear regression to compare ArS measures among groups and assess ArS determinants in the APS group. RESULTS: We included 110 patients with APS (70.9% female, mean age 45.4 years), 110 DM patients and 110 HC, all age/sex matched. After adjustment for age, sex, cardiovascular risk factors and plaque presence, APS patients exhibited similar cfPWV [ß = -0.142 (95% CI -0.514, 0.230), p = 0.454] but increased AIx@75 [ß = 4.525 (95% CI 1.372, 7.677), p = 0.005] compared with HC and lower cfPWV (p < 0.001) but similar AIx@75 (p = 0.193) versus DM patients. In the APS group, cfPWV was independently associated with age [ß = 0.056 (95% CI 0.034, 0.078), p < 0.001], mean arterial pressure (MAP) [ß = 0.070 (95% CI 0.043, 0.097), p < 0.001], atherosclerotic femoral plaques [ß = 0.732 (95% CI 0.053, 1.411), p = 0.035] and anti-ß2-glycoprotein I IgM positivity [ß = 0.696 (95% CI 0.201, 1.191), p = 0.006]. AIx@75 was associated with age [ß = 0.334 (95% CI 0.117, 0.551), p = 0.003], female sex [ß = 7.447 (95% CI 2.312, 12.581), p = 0.005] and MAP [ß = 0.425 (95% CI 0.187, 0.663), p = 0.001]. CONCLUSION: APS patients exhibit elevated AIx@75 vs HC and similar to DM patients, indicating enhanced arterial stiffening in APS. Given its prognostic value, ArS evaluation may help to improve cardiovascular risk stratification in APS.


Assuntos
Síndrome Antifosfolipídica , Doenças Cardiovasculares , Placa Aterosclerótica , Rigidez Vascular , Humanos , Feminino , Pessoa de Meia-Idade , Masculino , Análise de Onda de Pulso , Doenças Cardiovasculares/etiologia , Fatores de Risco , Síndrome Antifosfolipídica/complicações , Fatores de Risco de Doenças Cardíacas , Pressão Sanguínea
2.
Artigo em Inglês | MEDLINE | ID: mdl-38321577

RESUMO

OBJECTIVES: Patients with antiphospholipid syndrome (APS) carry a substantial burden of cardiovascular disease and subclinical atherosclerosis. We aimed to assess a 7-year follow-up atherosclerotic plaque progression in APS patients vs diabetes mellitus (DM) and healthy controls (HC). METHODS: Eighty-six patients with thrombotic APS, 86 with DM and 86 HC (all age- and sex-matched) who underwent a baseline ultrasound of carotid and femoral arteries were invited for a 7-year follow-up ultrasonography examination. We compared atherosclerosis progression among the three groups and examined determinants of plaque progression in APS patients. RESULTS: Sixty-four APS patients (75% females, 43.8% with primary APS), 58 patients with DM and 66 HC were included in the 7-year ultrasound re-evaluation. New plaque was detected in 51.6%, 36.2% and 25.8% of APS, DM and HC subjects, respectively. After adjusting for traditional cardiovascular risk factors (CVRFs) and baseline plaque presence, APS patients showed a 3-fold (OR = 3.07, p= 0.007) higher risk for atherosclerosis progression vs HC and 2-fold (OR = 2.25, p= 0.047) higher risk than DM patients. In multivariate analysis in the APS group, plaque progression was independently associated with systemic lupus erythematosus (SLE) co-existence (OR = 7.78, p= 0.005) and number of CVRFs (OR = 3.02, p= 0.002), after adjusting for disease-related parameters and CVRF-related medications. Sustained low-density lipoprotein target attainment reduced plaque progression risk (OR = 0.34, p= 0.021). CONCLUSION: Half of APS patients develop new atherosclerotic plaques over a 7-year follow-up, having a three-times higher risk vs HC. Concomitant SLE and number of traditional CVRFs are associated with plaque progression, supporting the need for thorough CVRF assessment and control.

3.
Liver Int ; 44(4): 884-893, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-38293770

RESUMO

Type 2 diabetes mellitus (T2DM) and liver cirrhosis are clinical entities that frequently coexist, but glucose-lowering medication options are limited in cirrhotic patients. Sodium-glucose linked transporter 2 (SGLT2) inhibitors are a class of glucose-lowering medication that act independently of insulin, by causing glycosuria in the proximal convoluted tubule. In this review, we aimed to briefly present the main data and to provide insight into the pathophysiology and potential usefulness of SGLT2 inhibitors in cirrhotic patients with or without T2DM. SGLT2 inhibitors have been proven useful as antidiabetic treatment in patients with metabolic liver disease, with most robust data from patients with metabolic dysfunction-associated steatotic liver disease (MASLD), where they also showed improvement in liver function parameters. Moreover, it has been suggested that SGLT2 inhibitors may have effects beyond their antidiabetic action. Accordingly, they have exhibited cardioprotective effects, expanding their indication in patients with heart failure without T2DM. Since decompensated liver cirrhosis and congestive heart failure share common pathophysiological features, namely renin-angiotensin-aldosterone axis and sympathetic nervous system activation as well as vasopressin secretion, SGLT2 inhibitors could also be beneficial in patients with decompensated cirrhosis, even in the absence of T2DM.


Assuntos
Diabetes Mellitus Tipo 2 , Insuficiência Cardíaca , Inibidores do Transportador 2 de Sódio-Glicose , Humanos , Inibidores do Transportador 2 de Sódio-Glicose/uso terapêutico , Inibidores do Transportador 2 de Sódio-Glicose/farmacologia , Hipoglicemiantes/uso terapêutico , Diabetes Mellitus Tipo 2/complicações , Diabetes Mellitus Tipo 2/tratamento farmacológico , Canagliflozina/uso terapêutico , Glucosídeos/farmacologia , Glucosídeos/uso terapêutico , Glucose/metabolismo , Cirrose Hepática/complicações , Cirrose Hepática/tratamento farmacológico , Sódio
4.
Eur J Nutr ; 62(5): 2165-2176, 2023 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-37017765

RESUMO

PURPOSE: The aim of the present study was to assess the impact of the daily consumption of bread enriched with hydroxytyrosol on HbA1c and blood lipid levels, inflammatory markers and weight loss. METHODS: Sixty adults with overweight/obesity and type 2 diabetes mellitus (29 male, 31 female) participated in a 12-week dietary intervention based on the Mediterranean diet and consumed daily 60 g of conventional whole wheat bread (WWB) or whole wheat bread enriched with hydroxytyrosol (HTB). Anthropometric characteristics were measured and venous blood samples were collected at baseline and at the end of the intervention. RESULTS: Both groups experienced significant weight loss, body fat and waist circumference decrease (p < 0.001). Nonetheless, a greater body fat mass decrease was observed in the HTB group compared to the WWB group (14.4 ± 1.6 vs 10.2 ± 1.1%, p = 0.038). Significant reductions were also reported in fasting glucose, HbA1c and blood pressure in both groups (p < 0.05). Regarding glucose and HbA1c, greater decreases were observed in the intervention group (101.4 ± 19.9 vs. 123.2 ± 43.4 mg/dL, p = 0.015 and 6.0 ± 0.6 vs. 6.4 ± 0.9%, p = 0.093, respectively). At HTB group, significant reductions in blood lipid, insulin, TNF-αand adiponectin levels (p < 0.05) and a marginally significant reduction in leptin levels (p = 0.081) were also reported. CONCLUSION: Enrichment of bread with HT resulted in significant body fat mass reduction and positive effects on fasting glucose, insulin and HbA1c levels. It also contributed to reductions in inflammatory markers and blood lipid levels. Incorporation of HT in staple foods, like bread, may improve their nutritional profile and, in terms of a balanced diet, may contribute to the management of chronic diseases. TRIAL REGISTRATION: The study was prospectively registered in clinicaltrials.gov (24th May 2021). CLINICALTRIALS: gov Identifier: NCT04899791.


Assuntos
Diabetes Mellitus Tipo 2 , Sobrepeso , Adulto , Humanos , Masculino , Feminino , Triticum/metabolismo , Pão , Glicemia/metabolismo , Obesidade , Peso Corporal , Redução de Peso , Insulina , Lipídeos , Inflamação
5.
Int J Mol Sci ; 24(15)2023 Jul 27.
Artigo em Inglês | MEDLINE | ID: mdl-37569420

RESUMO

Familial partial lipodystrophy (FPLD) is a rare syndrome in which a patient's phenotype is not merely dependent on the specific genetic mutation, but it is also defined by a combination of other demographic, environmental and genetic factors. In this prospective observational study in a Greek referral center, we enrolled 39 patients who fulfilled the clinical criteria of FPLD. A genetic analysis was conducted, which included sequence and deletion/duplication analyses of the LMNA and PPRARG genes, along with anthropometric and metabolic parameters. The treatment responses of patients who were eligible for treatment with metreleptin were evaluated at 3 and 12 months. In most of the patients, no significant changes were detected at the exon level, and any mutations that led to changes at the protein level were not associated with the lipodystrophic phenotype. On the contrary, various changes were detected at the intron level, especially in introns 7 and 10, whose clinical significance is considered unknown. In addition, treatment with metreleptin in specific FPLD patients significantly improved glycemic and lipidemic control, an effect which was sustained at the 12-month follow-up. More large-scale studies are necessary to clarify the genetic and allelic heterogeneity of the disease, along with other parameters which could predict treatment response.


Assuntos
Lipodistrofia Parcial Familiar , Humanos , Lipodistrofia Parcial Familiar/genética , Grécia , Lamina Tipo A/genética , Mutação , Fenótipo
6.
Rheumatology (Oxford) ; 61(8): 3408-3413, 2022 08 03.
Artigo em Inglês | MEDLINE | ID: mdl-34850863

RESUMO

BACKGROUND: Antiphospholipid syndrome (APS) is an autoimmune thrombophilia leading to life-threatening cardiovascular events. Cross-sectional data support that APS is associated with accelerated atherosclerosis, but this has not been confirmed in prospective studies. We aimed to compare the rate of atherosclerosis progression over a 3 year period between patients with APS, diabetes mellitus (DM) and healthy controls (HCs). METHODS: Eighty-six patients with APS [43 with primary APS (PAPS), 43 with SLE-related APS (SLE-APS)] and an equal number of age- and sex-matched patients with DM and HCs who underwent a baseline US of the carotid and femoral arteries were invited for a 3 year follow-up evaluation for atherosclerotic plaque progression. Multivariate analysis was performed for the assessment of determinants of plaque progression after adjustment for disease-related and traditional cardiovascular risk factors. RESULTS: Seventy-four APS patients (74.3% female, 38 with PAPS), 58 DM patients and 73 HCs were included. APS patients exhibited a 3.3-fold higher risk of new atherosclerotic plaque formation compared with HCs (P = 0.031), similar to that in DM [odds ratio (OR) 3.45, P = 0.028]. In APS patients, plaque development risk was higher in SLE-APS vs PAPS (OR 7.75, P = 0.038) and was independently associated with the presence of traditional cardiovascular risk factors as expressed by the Systematic Coronary Risk Evaluation risk (OR 2.31, P = 0.008). CONCLUSION: APS is characterized by accelerated rates of subclinical atherosclerosis to a degree comparable to DM, which is more pronounced in SLE-APS patients. Traditional cardiovascular risk factors are major determinants of this risk, warranting aggressive management as in other disorders with high cardiovascular risk.


Assuntos
Síndrome Antifosfolipídica , Aterosclerose , Diabetes Mellitus , Lúpus Eritematoso Sistêmico , Placa Aterosclerótica , Síndrome Antifosfolipídica/complicações , Aterosclerose/complicações , Aterosclerose/etiologia , Estudos Transversais , Feminino , Humanos , Lúpus Eritematoso Sistêmico/complicações , Masculino , Placa Aterosclerótica/complicações , Estudos Prospectivos , Fatores de Risco
7.
Cardiovasc Diabetol ; 21(1): 171, 2022 09 01.
Artigo em Inglês | MEDLINE | ID: mdl-36050687

RESUMO

BACKGROUND: Osteoprotegerin (OPG) and osteopontin (OPN) are vascular calcification inhibitors with a known role in the atherosclerotic and inflammatory process. We investigated their relationship with adverse outcomes (restenosis/adverse cardiovascular events) after endovascular revascularisation of patients with peripheral arterial disease (PAD). METHODS: 203 consecutive patients were enrolled in the PAD group (PADG) and 78 age and sex-matched subjects with less than two cardiovascular risk factors served as control group (COG). PADG underwent standard medical assessment at baseline and 12 months after the procedure. During follow up major adverse cardiovascular events (MACEs) including arterial restenosis with need for reintervention were documented and the PADG was divided accordingly into two subgroups. RESULTS: During 12-month follow-up, 82 MACE were recorded (MACE subgroup). The rest of 124 PAD patients remained free of MACE (non-MACE subgroup). At baseline, OPG (9.89 ± 2.85 ng/ml vs 3.47 ± 1.95 ng/ml, p < 0.001) and OPN (79.99 ± 38.29 ng/ml vs 35.21 ± 14.84 ng/ml, p < 0.001) levels were significantly higher in PADG compared to COG, as well as in MACE subgroup compared to non-MACE subgroup (13.29 ± 3.23 ng/ml vs 10.86 ± 3 ng/ml and 96.45 ± 40.12 ng/ml vs 78.1 ± 38.29 ng/ml, respectively). An independent association of PAD with OPG and OPN was found in the whole patient cohort. Although OPG and OPN were significantly related to MACE incidence in the univariate analysis, multiple logistic regression analysis failed to detect any independent predictor of MACE within the PADG. CONCLUSION: Baseline high OPG and OPN levels were independently associated with PAD presence. Even higher levels of those biomarkers were detected among PAD patients with MACE, however, their prognostic role should be further clarified.


Assuntos
Doença Arterial Periférica , Calcificação Vascular , Biomarcadores , Humanos , Osteopontina , Osteoprotegerina , Doença Arterial Periférica/diagnóstico , Doença Arterial Periférica/terapia , Fatores de Risco
8.
Diabetes Metab Res Rev ; 38(4): e3517, 2022 05.
Artigo em Inglês | MEDLINE | ID: mdl-34965318

RESUMO

AIMS: The aim of this systematic review and meta-analysis was to investigate the effect of vitamin D supplementation on mortality and admission to intensive care unit (ICU) of COVID-19 patients. METHODS: A systematic search of PubMed, Google Scholar, Embase, Web of Science and medRxiv with terms relative to vitamin D supplementation and COVID-19 was conducted on 26 March 2021. Comprehensive Meta-Analysis software was used for the quantitative assessment of data and random-effects model was applied. To investigate the association between the dose of vitamin D and the outcomes of interest, meta-regression analysis was performed. RESULTS: Two thousand and seventy-eight patients from nine studies with data on mortality were included (583 received vitamin D supplementation, while 1495 did not). Sixty-one (10.46%) individuals in the treated group died, compared to 386 (25.81%) in the non-treated group (odds ratio [OR]: 0.597; 95% CI: 0.318-1.121; p = 0.109). Eight hundred and sixty patients from six studies with data on ICU admission were included (369 received vitamin D supplementation, while 491 did not). Forty-five (12.19%) individuals in the treated group were admitted to ICU, compared to 129 (26.27%) in the non-treated group (OR: 0.326; 95% CI: 0.149-0.712; p = 0.005). No significant linear relationship between vitamin D dose and log OR of mortality or log OR of ICU admission was observed. CONCLUSION: This meta-analysis indicates a beneficial role of vitamin D supplementation on ICU admission, but not on mortality, of COVID-19 patients. Further research is urgently needed to understand the benefit of vitamin D in COVID-19.


Assuntos
COVID-19 , Deficiência de Vitamina D , Suplementos Nutricionais , Humanos , Unidades de Terapia Intensiva , Vitamina D/uso terapêutico , Deficiência de Vitamina D/tratamento farmacológico , Vitaminas/uso terapêutico
9.
Eur J Nutr ; 61(7): 3809-3819, 2022 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-35668121

RESUMO

PURPOSE: Enrichment of wheat bread with either α-cyclodextrin (α-CD) or an inclusion complex of hydroxytyrosol (HT) and α-CD was performed to examine potential postprandial benefits. METHODS: Ten healthy normoglycaemic adults were provided with either a glucose solution (reference food, GS), white wheat bread (WB), wheat bread enriched with α-CD (α-CDB) or wheat bread enriched with HT/α-CD complex ((HT + α-CD)B), with 1-week intervals in amounts that yielded 50 g of available carbohydrates. Venous blood samples were collected before consumption and at 15, 30, 45, 60, 90, 120 and 180 min, postprandially. Glycaemic, insulinaemic and appetite hormone responses as well as glycaemic index (GI) and subjective appetite ratings were evaluated. RESULTS: Both enriched breads were characterized as low GI foods (α-CDB:49.7, (HT + α-CD)B:40.0) and presented similar reduction in glucose, insulin and GLP-1 responses. Significant differences were found in glucose values 45 min after (HT + α-CD)B consumption compared to α-CDB (P < 0.05) as well as in serum ghrelin, 120 min postprandially, between (HT + α-CD)B and WB in (- 90.55 ± 29.17 and 16.53 ± 21.78 pg/dL, respectively, P < 0.05). Neither of the enriched breads prevailed regarding the induced self-reported satiety. However, their consumption led to a lower desire for the next meal compared to WB. CONCLUSION: Enrichment of bread with α-CD resulted in positive effects on postprandial glycaemia and induced satiety. Incorporation of encapsulated HT offered similar overall acceptability, due to the bitter taste-masking effect provided by α-CD, and a slightly additional positive effect in postprandial glycaemia and satiety. The development of foods with favorable metabolic effects is of great importance for the prevention of chronic diseases. The study was prospectively registered in clinicaltrials.gov (NCT04725955, date: 27th January 2021).


Assuntos
Pão , alfa-Ciclodextrinas , Adulto , Apetite , Glicemia/metabolismo , Estudos Cross-Over , Glucose , Humanos , Insulina , Álcool Feniletílico/análogos & derivados , Período Pós-Prandial/fisiologia , Triticum/metabolismo , alfa-Ciclodextrinas/farmacologia
10.
J Biochem Mol Toxicol ; 36(8): e23099, 2022 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-35593412

RESUMO

Τhe natural history of type 2 diabetes mellitus is characterized by a progressive loss of pancreatic beta cell function and insulin resistance. Bisphenol A (BPA) is an endocrine-disrupting chemical that is used widely in industry; people are exposed to BPA and its products daily. Studies have delineated that BPA alters the function of pancreatic beta cells. Herein, we examined the effect of low doses of BPA on pancreatic beta cell viability and apoptosis and we tried to elucidate the mechanisms involved in these processes. Beta-TC-6 (ATCC® CRL-11506™) cells were cultured with a medium containing the following dilutions of BPA: 0.002, 0.02, 0.1, 0.2, 2 µΜ up to 72 h. We examined the viability and adenosine triphosphate (ATP) levels of cells. Then, we measured apoptosis, cell cycle, and insulin levels. We quantified the levels of proteins implicated in the mitochondrial pathway of apoptosis; and finally, we quantified the intracellular reactive oxygen species and mitochondrial superoxide. We found that the exposure of Beta-TC-6 cells to BPA results in a decrease in cell viability, ATP levels, and an increase in insulin levels. We found an increase in apoptosis levels and a decrease in cell cycle levels. In addition, we provide evidence of the levels of apoptotic proteins. Finally, we found an increase in the cellular reactive oxygen species and mitochondrial superoxide production. Exposure to low concentrations of BPA triggers the mitochondrial pathway of apoptosis via the generation of intracellular reactive oxygen species and mitochondrial superoxide on Beta-TC-6 cells in a dose-dependent way.


Assuntos
Diabetes Mellitus Tipo 2 , Células Secretoras de Insulina , Insulinas , Trifosfato de Adenosina/metabolismo , Apoptose , Compostos Benzidrílicos/toxicidade , Humanos , Células Secretoras de Insulina/metabolismo , Insulinas/farmacologia , Fenóis , Espécies Reativas de Oxigênio/metabolismo , Superóxidos
11.
Eur J Clin Invest ; 51(2): e13380, 2021 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-33368197

RESUMO

BACKGROUND: The clustering of arterial stiffness with microvascular disease (MD) and their effects on the clinical outcome of patients with type 2 diabetes (T2D) remains not fully clarified. METHODS: In a prospective study of 414 patients with T2D, we investigated the prognostic value of arterial stiffness and MD for clinical outcomes. Participants were assessed for the presence of MD (ie diabetic retinopathy, nephropathy and neuropathy) and arterial stiffness by pulse wave velocity (PWV) and followed-up for a median of 30 (range 1-60) months. The primary endpoint of the study was the composite endpoint of major adverse cardiovascular events, that is, cardiovascular and non-cardiovascular mortality and non-fatal myocardial infarction/stroke. RESULTS: A total of 146 (35.3%) patients had evidence of MD at baseline. In cox regression models, MD and PWV were independently associated with the composite clinical endpoint; for MD hazard ratio (HR), 3.24, 95%CI, 1.10-9.54, P=.032, and for PWV HR, 1.20, 95%CI, 1.06-1.36, P=.004) after adjustment for traditional risk factors, and enhanced risk discrimination and reclassification. The subgroup of patients with MD and high PWV was associated with increased incidence of the composite clinical endpoint (20.9% vs 1.8% in those with no MD & low PWV, P=.001). Importantly, absence of MD at baseline was associated with no mortality events during the follow-up period. PWV at baseline was not associated with MD progression during follow-up. CONCLUSIONS: These findings support that screening for arterial stiffness and MD in the routine clinical assessment of patients with T2D may enhance prognostication and cardiovascular risk reclassification.


Assuntos
Diabetes Mellitus Tipo 2/fisiopatologia , Nefropatias Diabéticas/fisiopatologia , Neuropatias Diabéticas/fisiopatologia , Retinopatia Diabética/fisiopatologia , Rigidez Vascular/fisiologia , Idoso , Doenças Cardiovasculares/mortalidade , Diabetes Mellitus Tipo 2/complicações , Diabetes Mellitus Tipo 2/epidemiologia , Nefropatias Diabéticas/epidemiologia , Nefropatias Diabéticas/etiologia , Neuropatias Diabéticas/epidemiologia , Neuropatias Diabéticas/etiologia , Retinopatia Diabética/epidemiologia , Retinopatia Diabética/etiologia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Mortalidade , Infarto do Miocárdio/epidemiologia , Modelos de Riscos Proporcionais , Estudos Prospectivos , Análise de Onda de Pulso , Acidente Vascular Cerebral/epidemiologia
12.
Eur J Nutr ; 60(1): 455-464, 2021 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-32385687

RESUMO

PURPOSE: ß-Glucans (ßG) and resistant starch (RS) are known for their effects on the improvement of glucose tolerance and enhancement of insulin sensitivity. Enrichment of bread with ßG or RS was performed to examine potential postprandial benefits regarding gastrointestinal hormone responses. METHODS: Ten healthy normoglycaemic adults participated in the study and were provided with either a glucose solution (reference food, GS) or bread enriched with ß-glucans (ßGB) (3.6 g/30 g available CHO) or bread enriched with resistant starch (RSB) (15% of total starch), with 1-week intervals in amounts that yielded 50 g of available carbohydrates. Venous blood samples were collected before consumption and at 15, 30, 45, 60, 90, 120 and 180 min postprandially. Glucose, insulin, ghrelin, glucagon-like peptide-1 (GLP-1) and peptide YY (PYY) responses as well as glycaemic index (GI) and subjective appetite ratings were evaluated. RESULTS: Ingestion of ßGB and RSB elicited lower incremental area under the curve (iAUC) for glycaemic response compared to GS (P < 0.05). Both breads demonstrated a low GI (ßGB: 48, RSB: 40). There were no significant differences in insulin response, ghrelin, GLP-1 or PYY between the two breads. A significantly lower desire to eat and higher fullness were detected 15 min after ßGB and RSB consumption and until 180 min (P < 0.05 compared to GS). CONCLUSION: Enrichment of bread with either ßG or RS produced a low GI product but the two breads were not significantly different in relation to insulin, ghrelin, GLP-1 and PYY responses. The development of bread products which cause improved metabolic effects is of great importance for the promotion of public health.


Assuntos
Pão , beta-Glucanas , Adulto , Apetite , Glicemia , Estudos Cross-Over , Fibras na Dieta , Glucose , Humanos , Insulina , Período Pós-Prandial , Amido Resistente , Amido
13.
Crit Rev Clin Lab Sci ; 57(2): 114-125, 2020 03.
Artigo em Inglês | MEDLINE | ID: mdl-31663791

RESUMO

Growth differentiation factor-15 (GDF-15), also known as macrophage inhibitory cytokine-1 (MIC-1) or non-steroidal anti-inflammatory drug-activated gene (NAG-1) has been identified as a biomarker of response to treatment and prognosis in cardiovascular diseases. GDF-15 is a member of the transforming growth factor-ß superfamily and is involved in several pathological conditions such as inflammation, cancer, cardiovascular, pulmonary and renal diseases. Cardiac myocytes produce and secrete GDF-15 in response to oxidative stress, stimulation with angiotensin II or proinflammatory cytokines, ischemia, and mechanical stretch. Other cellular sources of GDF-15 production are macrophages, vascular smooth muscle cells, endothelial cells, and adipocytes, which secrete GDF-15 in response to oxidative or metabolic stress or stimulation of proinflammatory cytokines. GDF-15 is induced in hypertrophic and dilated cardiomyopathy after volume overload, ischemia, and heart failure. GDF-15 can be used as a marker of prognosis in patients with cardiovascular disorders, in combination with conventional prognostic factors, such as N-terminal pro B-type natriuretic peptide (NT-proBNP) and high-sensitivity troponin T (hs-TnT).


Assuntos
Fator 15 de Diferenciação de Crescimento/metabolismo , Fator 15 de Diferenciação de Crescimento/fisiologia , Cardiopatias/metabolismo , Miócitos Cardíacos/metabolismo , Biomarcadores , Doenças Cardiovasculares/metabolismo , Doenças Cardiovasculares/fisiopatologia , Citocinas/imunologia , Cardiopatias/fisiopatologia , Insuficiência Cardíaca/metabolismo , Insuficiência Cardíaca/fisiopatologia , Humanos , Inflamação/imunologia , Miócitos Cardíacos/fisiologia , Estresse Oxidativo/fisiologia , Valor Preditivo dos Testes , Prognóstico , Fatores de Risco
14.
Diabetes Metab Res Rev ; 36(5): e3297, 2020 07.
Artigo em Inglês | MEDLINE | ID: mdl-32026536

RESUMO

OBJECTIVE: Follistatin binds and inactivates activins, which are potent inhibitors of muscle growth and metabolism and are currently being developed for the treatment of obesity and type 2 diabetes (T2D). We have recently reported that follistatin is regulated by glucose (and not lipids) and can prospectively predict the metabolic improvements observed after bariatric surgery. We utilized novel assays herein to investigate whether activins are regulated by glucose or lipids, whether their circulating levels change after bariatric surgery and whether these changes are predictors of metabolic outcomes up to 12 months later. DESIGN AND METHODS: Activin A, B, AB and their ratios to follistatin were measured in (a) healthy humans (n = 32) undergoing oral or intravenous lipid or glucose intake over 6 h, (b) morbidly obese individuals with or without type 2 diabetes undergoing three different types of bariatric surgery (gastric banding, Roux-en-Y bypass or sleeve gastrectomy) in two clinical studies (n = 14 for the first and n = 27 for the second study). RESULTS: Glucose intake downregulates circulating activin A, B and AB, indicating the presence of a feedback loop. Activin A decreases (~30%), activin AB increases (~25%) and activin B does not change after bariatric surgery. The changes in activin AB and its ratio to follistatin 3 months after bariatric surgery can predict the BMI reduction and the improvement in insulin and HOMA-IR observed 6 months postoperatively. CONCLUSION: Activins are implicated in glucose regulation in humans as part of a feedback loop with glucose or insulin and predict metabolic outcomes prospectively after bariatric surgery.


Assuntos
Ativinas/metabolismo , Cirurgia Bariátrica/métodos , Diabetes Mellitus Tipo 2/prevenção & controle , Resistência à Insulina , Obesidade Mórbida/cirurgia , Redução de Peso , Biomarcadores/análise , Glicemia/análise , Estudos de Casos e Controles , Diabetes Mellitus Tipo 2/metabolismo , Diabetes Mellitus Tipo 2/patologia , Feminino , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Obesidade Mórbida/metabolismo , Obesidade Mórbida/patologia , Prognóstico
15.
Wound Repair Regen ; 28(2): 234-241, 2020 03.
Artigo em Inglês | MEDLINE | ID: mdl-31618498

RESUMO

Diabetic foot ulceration is a common and severe complication of diabetes, causing substantial social, medical, and economic burdens. Treatment of foot ulcers remains challenging, thus requiring increasing awareness and more efficient management. This study investigates the efficacy of ointments, containing as main active ingredient the olive oil extract of the marine isopod Ceratothoa oestroides, in the treatment of patients with diabetic foot ulcers. Fifty-two patients were allocated into four treatment groups either receiving therapy with an ointment containing extract of C. oestroides or extract of C. oestroides and eosin or extract of C. oestroides and cefaclor or no treatment. Patients were monitored for a period of 135 days by evaluation of transepidermal water loss, skin hydration, planimetry, photo-documentation, and clinical condition. Treatment with the extract of C. oestroides demonstrated significant healing properties that became evident after 45 days of treatment and resulted in complete ulcer healing in 61% of the patients. A significant improvement in transepidermal water loss (p < 0.001), skin hydration levels (p < 0.001), and wound area (p < 0.001) was observed in all patients. Similar efficacy was demonstrated for the combination of C. oestroides extract with eosin treatment (p < 0.001). On the contrary, the combination of C. oestroides extract with cefaclor antibiotic agent completely inhibited the healing properties of the isopod extract and did not improve water loss, skin hydration, or wound area. An important factor for C. oestroides extract healing properties is its selective activity against Gram negative bacteria. Ointments containing C. oestroides extract alone or combined with the antimicrobial agent eosin emerges as an effective regimen for the treatment of diabetic foot ulcers.


Assuntos
Antibacterianos/uso terapêutico , Cefaclor/uso terapêutico , Pé Diabético/tratamento farmacológico , Amarelo de Eosina-(YS)/uso terapêutico , Isópodes , Pomadas/uso terapêutico , Extratos de Tecidos/uso terapêutico , Cicatrização , Idoso , Animais , Diabetes Mellitus Tipo 1/complicações , Diabetes Mellitus Tipo 1/metabolismo , Diabetes Mellitus Tipo 2/complicações , Diabetes Mellitus Tipo 2/metabolismo , Pé Diabético/etiologia , Escherichia coli/efeitos dos fármacos , Feminino , Humanos , Klebsiella pneumoniae/efeitos dos fármacos , Masculino , Pessoa de Meia-Idade , Azeite de Oliva , Staphylococcus aureus/efeitos dos fármacos , Extratos de Tecidos/farmacologia , Resultado do Tratamento , Perda Insensível de Água
16.
BMC Endocr Disord ; 20(1): 16, 2020 Jan 28.
Artigo em Inglês | MEDLINE | ID: mdl-31992275

RESUMO

BACKGROUND: Strict glycaemic control early in the treatment process has been shown to reduce the occurrence of micro- and macro- vascular complications of diabetes in the long-term. Thus, treatment guidelines advise early intensification of treatment to achieve glycaemic control goals. However, evidence in Greece suggests that, despite guideline recommendations, glycaemic control among patients with T2DM remains challenging. This study presents the demographic and clinical characteristics of patients with T2DM in Greece using data from an electronic registry designed specifically for this treatment category and investigates the factors that are independently associated with glycaemic control. METHODS: This is a multi-center, observational, cross-sectional study to investigate epidemiological and clinical factors affecting glycaemic control among patients with T2DM in Greece. Data was collected via a web-based disease registry, the Diabetes Registry, which operated from January 1st to December 31st, 2017. Five large specialized diabetes centers operating in Greek hospitals participated in the study. RESULTS: Data for 1141 patients were retrieved (aged 63.02 ± 12.65 years, 56.9% male). Glycaemic control (Hb1Ac < 7%) was not achieved in 57.1% of patients. Factors independently associated with poor glycaemic control were: family history of diabetes [OR: 1.53, 95% CI: 1.06-2.23], BMI score between 25 to 30 [OR: 2.08, 95% CI: 1.05-4.13] or over 30 [OR: 2.12, 95% CI 1.12-4.07], elevated LDL levels [OR: 1.53, 95% 1.06-2.21] and low HDL levels [OR: 2.12, 95% CI: 1.44-3.12]. Lastly, use of injectable antidiabetic agents (in monotherapy or in combination) was less likely to be associated with poor glycaemic control versus treatment with combination of oral and injectable agents [OR: 0.50, 95% CI: 0.24-1.01]. This association was found to be marginally statistically significant. CONCLUSION: Inadequate lipid control, family history of diabetes and presence of obesity (ΒΜΙ ≥ 30 kg/m2) were associated with poor glycaemic control among study sample, whereas use of injectable antidiabetic agents was less likely to be associated with poor glycaemic control. These findings indicate how complex optimal glycaemic control is, highlighting the need for tailored interventions in high-risk subpopulations with T2DM.


Assuntos
Biomarcadores/análise , Diabetes Mellitus Tipo 2/tratamento farmacológico , Hiperglicemia/prevenção & controle , Hipoglicemia/prevenção & controle , Hipoglicemiantes/uso terapêutico , Glicemia/análise , Estudos Transversais , Feminino , Seguimentos , Hemoglobinas Glicadas/análise , Humanos , Hiperglicemia/patologia , Hipoglicemia/patologia , Masculino , Pessoa de Meia-Idade , Prognóstico , Sistema de Registros
17.
Eur J Clin Invest ; 49(10): e13164, 2019 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-31421060

RESUMO

BACKGROUND: Over the past decades, the prevalence of obesity has markedly increased worldwide. Stress is recognized as a substantial contributor to increased body weight; therefore, stress management interventions, especially cognitive behavioural, are becoming increasingly popular. The impact of stress management on stress- and obesity-related biomarkers (eg blood lipid profile, HBA1c, inflammatory biomarkers, such as CRP) has been scarcely studied. The aim of this study was to assess the effect of a novel cognitive behavioural stress management intervention, called 'Pythagorean Self-Awareness Intervention' (PSAI), in overweight/obese adults. MATERIALS AND METHODS: This was a two-armed 1:1 randomized, nonblind controlled study including overweight/obese individuals. The control group followed a personalized Mediterranean low-calorie diet, and the intervention group followed the same diet in addition to the PSAI intervention for 8 weeks. Measurements included demographic, anthropometric (ie BMI, waist-to-hip ratio), stress (ie perceived stress, salivary cortisol), dietary behaviour (ie emotional eating) and metabolic parameters (ie blood lipid profile, HBA1c, CRP, body composition in fat and water). Outcome per-protocol analysis was performed using mixed linear models adjusted for age and gender. RESULTS: A total of 49 of 62 eligible adults were analysed in the study (there were three dropouts in the intervention group and 10 dropouts in the control group); 28 were assigned to the intervention group (mean age 54.7 ± 11.9 years) and 21 to the control group (mean age 51.8 ± 11.9 years). The intervention group showed a statistically significant decrease in perceived stress, cortisol concentrations 30 minutes after awakening, cortisol's area under the curve, BMI, waist-to-hip ratio, restrained, emotional and external eating behaviour, fasting glucose, LDL, triglycerides, HbA1c and body and trunk fat, compared with the control group. Based on the observed effect sizes, clinically meaningful changes may be more evident in stress perception, restrained and external eating behaviour, Hb1ac and trunk fat. The compliance to the PSAI intervention reached 100%, and there were no adverse effects. CONCLUSIONS: The PSAI technique may be an effective stress management method for overweight/obese adults. Future and larger randomized controlled studies are needed to allow generalization of these findings.


Assuntos
Restrição Calórica , Terapia Cognitivo-Comportamental/métodos , Dieta Mediterrânea , Comportamento Alimentar/psicologia , Obesidade/terapia , Estresse Psicológico/terapia , Tecido Adiposo , Adulto , Idoso , Composição Corporal , Índice de Massa Corporal , Proteína C-Reativa/metabolismo , HDL-Colesterol/metabolismo , LDL-Colesterol/metabolismo , Feminino , Hemoglobinas Glicadas/metabolismo , Humanos , Hidrocortisona/metabolismo , Masculino , Pessoa de Meia-Idade , Obesidade/metabolismo , Obesidade/psicologia , Sobrepeso/metabolismo , Saliva/química , Estresse Psicológico/metabolismo , Estresse Psicológico/psicologia , Triglicerídeos/metabolismo , Relação Cintura-Quadril
18.
Diabetes Obes Metab ; 21(6): 1506-1512, 2019 06.
Artigo em Inglês | MEDLINE | ID: mdl-30785655

RESUMO

In this post hoc analysis we investigated the effects of insulin degludec/liraglutide fixed-ratio combination (IDegLira) versus comparators on cardiovascular (CV) risk markers in participants in the DUAL II (vs. insulin degludec), DUAL V (vs. insulin glargine 100 units/mL) and DUAL VII (vs. basal-bolus therapy) trials, grouped by sex, age (<65 years, ≥65 years) and diabetes duration (<10 years, ≥10 years). Treatment contrasts were in favour of IDegLira in many subgroups for changes from baseline in glycated haemoblogin (DUAL II, DUAL V), body weight (all three trials), systolic blood pressure (BP; all three trials), HDL cholesterol (DUAL VII) and LDL cholesterol (DUAL II, DUAL V). Higher heart rates were seen with IDegLira versus comparators (all three trials) plus significantly higher diastolic BP in men (DUAL V). Differences in treatment effect were seen between sexes in waist circumference (DUAL II), systolic BP (DUAL II, DUAL V) and triglycerides (DUAL VII), and between diabetes durations in LDL cholesterol (DUAL V). In conclusion, IDegLira is associated with a general improvement in CV risk markers compared with basal insulin or basal-bolus therapy after 26 weeks of treatment.


Assuntos
Doenças Cardiovasculares/complicações , Diabetes Mellitus Tipo 2 , Hipoglicemiantes/uso terapêutico , Insulina de Ação Prolongada/uso terapêutico , Liraglutida/uso terapêutico , Idoso , Pressão Sanguínea , Diabetes Mellitus Tipo 2/complicações , Diabetes Mellitus Tipo 2/tratamento farmacológico , Combinação de Medicamentos , Feminino , Humanos , Hipoglicemiantes/administração & dosagem , Insulina de Ação Prolongada/administração & dosagem , Liraglutida/administração & dosagem , Masculino , Pessoa de Meia-Idade , Fatores de Risco , Circunferência da Cintura
19.
Diabetes Obes Metab ; 21(12): 2643-2650, 2019 12.
Artigo em Inglês | MEDLINE | ID: mdl-31385425

RESUMO

AIMS: Basal-bolus therapy is associated with greater treatment burden and lower adherence compared with more simplified regimens. This post hoc analysis studied the difference between insulin degludec/liraglutide (IDegLira) and basal-bolus therapy on number of injections, dose adjustments and patient outcomes in the DUAL VII trial. MATERIALS AND METHODS: DUAL VII was a 26-week, open-label trial in which patients with uncontrolled type 2 diabetes who were using metformin and insulin glargine 100 units/mL (20-50 U) were randomized 1:1 to IDegLira (N = 252) or basal-bolus (insulin glargine U100 + insulin aspart ≤4 times/day) (N = 254). This post hoc analysis reports the observed mean number of injections and cumulative dose adjustments during 26 weeks of treatment. Patient-reported outcomes (Treatment-Related Impact Measure - Diabetes [TRIM-D] and Short Form-36 Health Survey version 2 [SF-36v2]) were collected at scheduled visits and change from baseline scores calculated. RESULTS: The clinical benefits (non-inferior HbA1c reductions, weight benefit, less hypoglycaemia) of IDegLira vs basal-bolus therapy were achieved with fewer cumulative dose adjustments (16.6 vs 217.2, respectively) and fewer injections (1 vs ≥3 per day, respectively). Patients treated with IDegLira experienced significant improvements across all TRIM-D domains compared with those undergoing basal-bolus therapy. The SF-36v2 showed improvements in both treatment arms with no significant difference between arms in the physical component summary, but there was a significant improvement in patients treated with IDegLira in the mental component summary (P = .0228). CONCLUSIONS: These findings, combined with the DUAL VII results, suggest that IDegLira, through a more simplified regimen versus basal-bolus therapy, may help improve patient adherence and improve patient outcomes related to diabetes management, treatment burden and mental health, which in turn may assist in the timely achievement of glycaemic control in clinical practice.


Assuntos
Diabetes Mellitus Tipo 2/tratamento farmacológico , Hipoglicemiantes/administração & dosagem , Insulina de Ação Prolongada/administração & dosagem , Liraglutida/administração & dosagem , Combinação de Medicamentos , Humanos , Hipoglicemiantes/uso terapêutico , Injeções , Insulina de Ação Prolongada/uso terapêutico , Liraglutida/uso terapêutico , Medidas de Resultados Relatados pelo Paciente
20.
Diabetes Obes Metab ; 21(3): 517-524, 2019 03.
Artigo em Inglês | MEDLINE | ID: mdl-30242948

RESUMO

AIMS: To assess the effect of liraglutide on 24-hour ambulatory blood pressure and heart rate in patients with hypertension (pre- and stage 1 hypertension) and inadequately controlled Type 2 diabetes (glycated haemoglobin 7%-10% [53-86 mmol/mol]). MATERIALS AND METHODS: Eligible patients for this investigator-initiated, parallel-group, randomized, double-blind trial were on stable background antihyperglycaemic therapy excluding insulin, glucagon-like peptide-1 receptor agonists and dipeptidyl-peptidase-4 inhibitors. Participants were centrally randomized in a 1:1 ratio to daily liraglutide 0.6 mg, titrated to 1.2 mg after the first week, or placebo for 5 weeks. The primary outcome was change in 24-hour ambulatory systolic blood pressure (SBP), and secondary outcomes included change in ambulatory diastolic blood pressure (DBP) and heart rate. We also assessed renal sodium handling. RESULTS: Of 87 patients assessed for eligibility, 62 (66.1% men) with a mean age of 60.2 years were randomized to liraglutide (n = 31) or placebo (n = 31). All participants received background therapy with metformin, whilst 35.5% were treated concomitantly with sulphonylureas and 14.5% with pioglitazone. Compared with placebo, liraglutide reduced 24-hour SBP by -5.73 mm Hg (95% confidence interval [CI] -9.81 to -1.65) and had a neutral effect on 24-hour DBP (mean difference - 1.42 mm Hg; 95% CI -4.25 to 1.40), whilst increasing 24-hour heart rate by 6.16 beats/min (95% CI 3.25 to 9.07). Findings were consistent for daytime and night-time measurements. Liraglutide did not increase urine sodium excretion. CONCLUSION: Based on 24-hour ambulatory measurements, short-term treatment with liraglutide had a favourable effect on SBP whilst increasing heart rate.


Assuntos
Pressão Sanguínea/efeitos dos fármacos , Diabetes Mellitus Tipo 2/tratamento farmacológico , Hipertensão/tratamento farmacológico , Liraglutida/uso terapêutico , Idoso , Glicemia/efeitos dos fármacos , Monitorização Ambulatorial da Pressão Arterial , Diabetes Mellitus Tipo 2/sangue , Diabetes Mellitus Tipo 2/complicações , Diabetes Mellitus Tipo 2/fisiopatologia , Método Duplo-Cego , Feminino , Frequência Cardíaca/efeitos dos fármacos , Humanos , Hipertensão/sangue , Hipertensão/complicações , Lipídeos/sangue , Liraglutida/farmacologia , Masculino , Pessoa de Meia-Idade , Placebos
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