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1.
J Pediatr ; 253: 18-24.e2, 2023 02.
Artigo em Inglês | MEDLINE | ID: mdl-36049522

RESUMO

OBJECTIVE: To identify childhood and parental factors associated with initiation of statin therapy in children with heterozygous familial hypercholesterolemia (HeFH), including underlying genetic diagnosis or parental premature atherosclerotic cardiovascular disease (ASCVD). STUDY DESIGN: This multicenter cohort study included 245 HeFH child-parent pairs from the REFERCHOL national register (2014-2020). Demographic and clinical characteristics at the last visit were collected. Vascular disease in parents was defined as a history of ASCVD, and/or a coronary artery calcium score >100, and/or stenosis of >50% in at least carotid artery. Statistical analyses included descriptive analysis, logistic regression for univariate and multivariate effects of statins, and a sensitivity analysis combining the characteristics of children and parents. RESULTS: Among the 245 children in the study cohort, 135 (58%), with a mean age of 14 ± 3 years, were treated with a statin. In multivariable analysis, the predictive childhood factors associated with statin treatment were genetic diagnosis (OR, 2.5; 95% CI, 1.3 to 4.9; P = .01), older age (OR, 4.4; 95% CI, 1.8-10.6; P = .01), more than 2 visits (OR, 2.36; 95% CI, 1.18-4.73; P = .015), and longer duration of follow-up (OR, 1.3; 95% CI, 1.1-1.6; P < .001). The predictive parental factor associated with childhood treatment was the presence of vascular disease (OR, 2.4; 95% CI, 1.0-5.7; P = .04). CONCLUSIONS: HeFH confirmed by DNA testing during childhood and a history of vascular disease in parents were independently associated with statin treatment in children with HeFH. Genetic diagnosis may be useful for cardiovascular prevention in children.


Assuntos
Aterosclerose , Inibidores de Hidroximetilglutaril-CoA Redutases , Hipercolesterolemia , Hiperlipoproteinemia Tipo II , Humanos , Criança , Adolescente , Inibidores de Hidroximetilglutaril-CoA Redutases/uso terapêutico , Estudos de Coortes , LDL-Colesterol , Hiperlipoproteinemia Tipo II/diagnóstico , Hiperlipoproteinemia Tipo II/tratamento farmacológico , Hiperlipoproteinemia Tipo II/genética , Hipercolesterolemia/complicações , Aterosclerose/etiologia , Aterosclerose/genética
2.
Int J Mol Sci ; 24(2)2023 Jan 11.
Artigo em Inglês | MEDLINE | ID: mdl-36674971

RESUMO

Polycyclic aromatic hydrocarbons (PAHs) are one of the most prevalent classes of environmental pollutants. Some evidence shows that PAHs could be involved in human obesity. However, little is known about the distribution patterns of PAHs in human adipose tissue (AT) and the role of PAHs on adipogenesis/lipogenesis. The aims of this pilot study were to determine concentrations of 16 PAHs defined as high-priority pollutants in the plasma and adipose tissue of French and Polish bariatric patients, as well as their correlation with body mass index (BMI), plasma and AT adipokines expression levels. We finally investigated the role of naphthalene on cell proliferation, viability, and differentiation in 3T3-L1 preadipocytes. The concentration of most PAHs was similar in the three types of AT and it was significantly higher in AT as compared to plasma, suggesting bioaccumulation. Polish patients had higher PAH levels in AT than French ones. Only the concentration of naphthalene in AT was positively correlated with the BMI and serum or adipose chemerin, adiponectin and resistin expression, in French but not in Polish patients, who had significantly higher BMIs. Moreover, naphthalene exposure increased the cell proliferation of 3T3-L1 preadipocytes and lipogenesis, and increased the expression of genes involved in adipogenesis after cell differentiation. Taken together, PAHs and more particularly naphthalene could be an obesogenic molecule and increase the risk of obesity.


Assuntos
Poluentes Ambientais , Hidrocarbonetos Policíclicos Aromáticos , Animais , Camundongos , Humanos , Hidrocarbonetos Policíclicos Aromáticos/metabolismo , Células 3T3-L1 , Adipogenia , Projetos Piloto , Naftalenos/farmacologia , Naftalenos/metabolismo , Tecido Adiposo/metabolismo , Poluentes Ambientais/metabolismo , Obesidade/metabolismo
3.
Cardiovasc Diabetol ; 20(1): 24, 2021 01 22.
Artigo em Inglês | MEDLINE | ID: mdl-33482830

RESUMO

BACKGROUND: There remain uncertainties regarding diabetes mellitus and the incidence of atrial fibrillation (AF), in relation to type of diabetes, and the interactions with sex and age. We investigated whether diabetes confers higher relative rates of AF in women compared to men, and whether these sex-differences depend on type of diabetes and age. METHODS: All patients aged ≥ 18 seen in French hospitals in 2013 with at least 5 years of follow-up without a history of AF were identified and categorized by their diabetes status. We calculated overall and age-dependent incidence rates, hazard ratios, and women-to-men ratios for incidence of AF in patients with type 1 and type 2 diabetes (compared to no diabetes). RESULTS: In 2,921,407 patients with no history of AF (55% women), 45,389 had prevalent type 1 diabetes and 345,499 had prevalent type 2 diabetes. The incidence rates (IRs) of AF were higher in type 1 or type 2 diabetic patients than in non-diabetics, and increased with advancing age. Among individuals with diabetes, the absolute rate of AF was higher in men than in women. When comparing individuals with and without diabetes, women had a higher adjusted hazard ratio (HR) of AF than men: adjusted HR 1.32 (95% confidence interval 1.27-1.37) in women vs. 1.12(1.08-1.16) in men for type 1 diabetes, adjusted HR 1.17(1.16-1.19) in women vs. 1.10(1.09-1.12) in men for type 2 diabetes. CONCLUSION: Although men have higher absolute rates for incidence of AF, the relative rates of incident AF associated with diabetes are higher in women than in men for both type 1 and type 2 diabetes.


Assuntos
Fibrilação Atrial/epidemiologia , Diabetes Mellitus Tipo 1/epidemiologia , Diabetes Mellitus Tipo 2/epidemiologia , Adulto , Fatores Etários , Idoso , Fibrilação Atrial/diagnóstico , Bases de Dados Factuais , Diabetes Mellitus Tipo 1/diagnóstico , Diabetes Mellitus Tipo 2/diagnóstico , Feminino , França/epidemiologia , Humanos , Incidência , Estudos Longitudinais , Masculino , Pessoa de Meia-Idade , Prevalência , Estudos Retrospectivos , Medição de Risco , Fatores de Risco , Fatores Sexuais
4.
Diabetes Obes Metab ; 23(11): 2492-2501, 2021 11.
Artigo em Inglês | MEDLINE | ID: mdl-34251088

RESUMO

AIM: To evaluate the associations between metabolically healthy obesity (MHO) and different types of incident cardiovascular events in a contemporary population. MATERIALS AND METHODS: All patients discharged from French hospitals in 2013 with at least 5 years of follow-up and without a history of major adverse cardiovascular event (MACE; myocardial infarction, heart failure [HF], ischaemic stroke or cardiovascular death [MACE-HF]) or underweight/malnutrition were identified. They were categorized by phenotypes defined by obesity and three metabolic abnormalities (diabetes, hypertension and hyperlipidaemia). Hazard ratios (HRs) for cardiovascular events during follow-up were adjusted on age, sex and smoking status at baseline. RESULTS: In total, 2 873 039 individuals were included in the analysis, among whom 272 838 (9.5%) had obesity. During a mean follow-up of 4.9 years, when pooling men and women, individuals with MHO had a higher risk of MACE-HF (multivariate-adjusted HR 1.22, 95% confidence interval [CI]: 1.19-1.24), new-onset HF (HR 1.34, 95% CI 1.31-1.37) and atrial fibrillation (AF; HR 1.33, 95% CI 1.30-1.37) compared with individuals with no obesity and zero metabolic abnormalities. By contrast, risks were not higher for myocardial infarction (HR 0.92, 95% CI 0.87-0.98), ischaemic stroke (HR 0.93, 95% CI 0.88-0.98) and cardiovascular death (HR 0.99, 95% CI 0.93-1.04). MHO in men was associated with a higher risk of clinical events compared with metabolically healthy men of normal weight (HR 1.12-1.80), while women with MHO had a lower risk for most events than metabolically healthy women of normal weight (HR 0.49-0.99). CONCLUSIONS: In a large and contemporary analysis of patients seen in French hospitals, individuals with MHO did not have a higher risk of myocardial infarction, ischaemic stroke or cardiovascular death than metabolically healthy individuals with no obesity. By contrast, they had a higher risk of new-onset HF and new-onset AF. However, notable differences were observed in men and women in the sex-stratified analysis.


Assuntos
Isquemia Encefálica , Obesidade Metabolicamente Benigna , Acidente Vascular Cerebral , Estudos de Coortes , Feminino , Humanos , Masculino , Obesidade/complicações , Obesidade/epidemiologia , Obesidade Metabolicamente Benigna/complicações , Obesidade Metabolicamente Benigna/epidemiologia , Fatores de Risco , Acidente Vascular Cerebral/epidemiologia , Acidente Vascular Cerebral/etiologia
5.
Appetite ; 136: 25-32, 2019 05 01.
Artigo em Inglês | MEDLINE | ID: mdl-30641157

RESUMO

INTRODUCTION: The exact mechanisms underlying the established association between ADHD and obesity remain unclear. Food addiction and binge eating may contribute to this link. We examined for the first time the association between childhood/adult ADHD and food addiction/binge eating in patients with obesity, as well as the association between ADHD and sleep apnea syndrome. METHODS: We included 105 obese patients from the Nutrition Department of the University Hospital of Tours (France) between January and December 2014. We assessed categorical diagnoses of childhood/adulthood ADHD (semi-structured interview DIVA 2.0), food addiction (Yale Food Addiction Scale 2.0), binge eating (Binge Eating Scale), obstructive sleep apnea (clinical assessment), and BMI (clinical assessment). RESULTS: Patients with adult ADHD were at significantly higher risk of food addiction than patients without adult ADHD (28.6% vs. 9.1%; p = .016). Adult and childhood ADHD were significantly associated with self-reported food addiction, food addiction scores and binge eating scores, with a larger effect size for adult (ORs: 4.00 [1.29-12.40], 1.37 [1.14-1.65] and 1.08 [1.03-1.14], respectively) than childhood (ORs: 3.32 [1.08-10.23], 1.29 [1.08-1.55] and 1.06 [1.01-1.11], respectively) ADHD. ADHD diagnosis was not significantly correlated to obstructive sleep apnea. Mean age of onset of ADHD preceded mean age of onset of obesity. CONCLUSION: ADHD diagnosis is associated with food addiction and binge eating, with a larger effect size for adult than childhood ADHD. Our results provide a strong rationale for further longitudinal research on the link between ADHD, food addiction, binge eating and obesity, paving the way for evidence-based therapeutic interventions for these patients.


Assuntos
Transtorno do Deficit de Atenção com Hiperatividade/epidemiologia , Bulimia/epidemiologia , Dependência de Alimentos/epidemiologia , Obesidade/epidemiologia , Síndromes da Apneia do Sono/epidemiologia , Adulto , Idade de Início , Idoso , Comorbidade , Estudos Transversais , Feminino , França/epidemiologia , Humanos , Masculino , Pessoa de Meia-Idade
6.
Int J Mol Sci ; 20(18)2019 Sep 09.
Artigo em Inglês | MEDLINE | ID: mdl-31505789

RESUMO

It is well known that adipokines are endocrine factors that are mainly secreted by white adipose tissue. Their central role in energy metabolism is currently accepted. More recently, their involvement in fertility regulation and the development of some reproductive disorders has been suggested. Data concerning the role of leptin and adiponectin, the two most studied adipokines, in the control of the reproductive axis are consistent. In recent years, interest has grown about some novel adipokines, chemerin, visfatin, resistin and apelin, which have been found to be strongly associated with obesity and insulin-resistance. Here, we will review their expression and role in male and female reproduction in humans and animal models. According to accumulating evidence, they could regulate the secretion of GnRH (Gonadotropin-Releasing Hormone), gonadotropins and steroids. Furthermore, their expression and that of their receptors (if known), has been demonstrated in the human and animal hypothalamo-pituitary-gonadal axis. Like leptin and adiponectin, these novel adipokines could thus represent metabolic sensors that are able to regulate reproductive functions according to energy balance changes. Therefore, after investigating their role in normal fertility, we will also discuss their possible involvement in some reproductive troubles known to be associated with features of metabolic syndrome, such as polycystic ovary syndrome, gestational diabetes mellitus, preeclampsia and intra-uterine growth retardation in women, and sperm abnormalities and testicular pathologies in men.


Assuntos
Apelina/metabolismo , Quimiocinas/metabolismo , Citocinas/metabolismo , Diabetes Gestacional/metabolismo , Retardo do Crescimento Fetal/metabolismo , Nicotinamida Fosforribosiltransferase/metabolismo , Síndrome do Ovário Policístico/metabolismo , Pré-Eclâmpsia/metabolismo , Resistina/metabolismo , Doenças Testiculares/metabolismo , Animais , Modelos Animais de Doenças , Feminino , Humanos , Resistência à Insulina , Masculino , Obesidade/metabolismo , Gravidez
7.
Eur Respir J ; 51(6)2018 06.
Artigo em Inglês | MEDLINE | ID: mdl-29880653

RESUMO

The goal of this study was to assess the relationship between the severity of obstructive sleep apnoea (OSA) and liver stiffness measurement (LSM), one of the most accurate noninvasive screening tools for liver fibrosis in nonalcoholic fatty liver disease.The study included 147 patients with at least one criterion for the metabolic syndrome, assessed by polysomnography for suspected OSA. LSM was performed using transient elastography (FibroScan). Significant liver disease and advanced liver fibrosis were defined as LSM ≥7.3 and ≥9.6 kPa, respectively.23 patients were excluded because of unreliable LSM. Among 124 patients, 34 (27.4%) had mild OSA, 38 (30.6%) had moderate OSA and 52 (42.0%) had severe OSA. LSM values were 7.3- <9.6 kPa in 18 (14.5%) patients and ≥9.6 kPa in 15 (12.1%) patients. A dose-response relationship was observed between OSA severity and LSM values (p=0.004). After adjustment for age, sex, metabolic syndrome and insulin resistance, severe OSA was associated with an increased risk of LSM ≥7.3 kPa (OR 7.17, 95% CI 2.51-20.50) and LSM ≥9.6 kPa (OR 4.73, 95% CI 1.25-17.88).In patients with metabolic comorbidities, severe OSA is independently associated with increased liver stiffness, which may predispose to a higher risk of significant liver disease and poorer prognosis.


Assuntos
Cirrose Hepática/diagnóstico por imagem , Cirrose Hepática/epidemiologia , Fígado/fisiopatologia , Hepatopatia Gordurosa não Alcoólica/complicações , Síndromes da Apneia do Sono/epidemiologia , Adulto , Comorbidade , Técnicas de Imagem por Elasticidade , Feminino , França/epidemiologia , Humanos , Modelos Logísticos , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Curva ROC , Índice de Gravidade de Doença
8.
Subst Use Misuse ; 53(11): 1919-1923, 2018 09 19.
Artigo em Inglês | MEDLINE | ID: mdl-29452044

RESUMO

BACKGROUND: The "food addiction" phenotype identifies a subpopulation of individuals experiencing substance-dependence symptoms toward specific foods. In the current debate on whether the "food addiction" phenotype should be considered as an addictive disorder, assessment of the personality traits associated with this phenotype would provide arguments for or against the "food addiction" phenotype and its inclusion in the "substance-related and addictive disorder" category. OBJECTIVES: To assess the personality characteristics associated with the "food addiction" phenotype in obesity surgery candidates (i.e., big five personality dimensions, alexithymia and impulsivity). METHODS: We assessed food addiction (Yale Food Addiction Scale), personality dimensions (Big Fig Inventory), impulsivity (Barratt Impulsiveness Scale-11th version) and alexithymia (Toronto Alexithymia Scale-20 items) in 188 bariatric surgery candidates recruited between July 2013 and November 2015 in the Nutrition Department of the University Hospital of Tours. We used chi-squared tests and Student's tests or Mann-Whitney-U-tests to determine the factors associated with food addiction. RESULTS: Prevalence of current food addiction was 16.5%. Patients with (vs. without) food addiction had lower conscientiousness (p = .047), higher neuroticism and lower extraversion (ps < 0.001), but there was no difference in terms of agreeableness (p = 0.42) or openness (p = 0.16). They were more frequently single (p = .021) and reported higher alexithymia (ps < .001) and higher impulsivity sub-scores (ps<.05). Conclusions/Importance: Food addiction shares personality traits with substance-related disorders (regarding neuroticism, conscientiousness, impulsivity, alexithymia), and one distinctive trait (low extraversion). This study provides additional data that enrich the discussion on whether the "food addiction" phenotype should be included or not in the "substance-related and addictive disorder" category.


Assuntos
Cirurgia Bariátrica , Consciência , Extroversão Psicológica , Dependência de Alimentos/epidemiologia , Dependência de Alimentos/psicologia , Comportamento Impulsivo , Neuroticismo , Obesidade/psicologia , Adulto , Cirurgia Bariátrica/psicologia , Estudos de Casos e Controles , Estudos Transversais , Feminino , França/epidemiologia , Humanos , Masculino , Obesidade/complicações , Obesidade/cirurgia , Personalidade , Inventário de Personalidade , Prevalência , Fatores de Risco , Adulto Jovem
9.
Cardiovasc Diabetol ; 16(1): 39, 2017 03 21.
Artigo em Inglês | MEDLINE | ID: mdl-28327146

RESUMO

BACKGROUND: Obstructive sleep apnea (OSA) and type 2 diabetes (T2D) are associated with endothelial dysfunction a main predictor of late cardiovascular (CV) events. Despite the high prevalence of OSA in patients with T2D, the impact of OSA severity on endothelial function has not been clearly elucidated. The aim of this cross-sectional study was to determine whether increasing OSA severity is associated with poorer endothelial function in patients with T2D. METHODS: 140 patients with T2D and no overt CV disease underwent polysomnography, peripheral arterial tonometry, clinic blood pressure (BP) measurement, biological assessment for CV risk factors, daytime sleepiness and health related quality of life (HRQL) questionnaires. The following commonly used cut-offs for apnea-hypopnea index (AHI) were used to define 3 categories of disease severity: AHI < 15 (no OSA or mild OSA), 15 ≤ AHI < 30 (moderate OSA), and AHI ≥ 30 (severe OSA). The primary outcome was the reactive hyperemia index (RHI), a validated assessment of endothelial function. RESULTS: 21.4% of patients had moderate OSA and 47.6% had severe OSA. Increasing OSA severity and nocturnal hypoxemia were not associated with a significant decrease in RHI. Endothelial dysfunction (RHI < 1.67) was found in 47.1, 44.4 and 39.2% of patients with no OSA or mild OSA, moderate OSA and severe OSA, respectively (p = 0.76). After adjustment for confounders including body mass index, increasing OSA severity was associated with higher systolic BP (p = 0.03), lower circulating levels of adiponectin (p = 0.0009), higher levels of sP-selectin (p = 0.03), lower scores in 3 domains of HRQL including energy/vitality (p = 0.02), role functioning (p = 0.01), and social functioning (p = 0.04). CONCLUSIONS: Moderate to severe OSA is very common but has no impact on digital micro-vascular endothelial function in patients with T2D.


Assuntos
Diabetes Mellitus Tipo 2/epidemiologia , Diabetes Mellitus Tipo 2/fisiopatologia , Endotélio Vascular/fisiopatologia , Índice de Gravidade de Doença , Apneia Obstrutiva do Sono/epidemiologia , Apneia Obstrutiva do Sono/fisiopatologia , Idoso , Estudos Transversais , Diabetes Mellitus Tipo 2/diagnóstico , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Polissonografia/métodos , Apneia Obstrutiva do Sono/diagnóstico
11.
BMC Public Health ; 16(1): 1021, 2016 Sep 29.
Artigo em Inglês | MEDLINE | ID: mdl-27682602

RESUMO

BACKGROUND: The incidence of childhood type 1 diabetes (T1D) incidence is rising in many countries, supposedly because of changing environmental factors, which are yet largely unknown. The purpose of the study was to unravel environmental markers associated with T1D. METHODS: Cases were children with T1D from the French Isis-Diab cohort. Controls were schoolmates or friends of the patients. Parents were asked to fill a 845-item questionnaire investigating the child's environment before diagnosis. The analysis took into account the matching between cases and controls. A second analysis used propensity score methods. RESULTS: We found a negative association of several lifestyle variables, gastroenteritis episodes, dental hygiene, hazelnut cocoa spread consumption, wasp and bee stings with T1D, consumption of vegetables from a farm and death of a pet by old age. CONCLUSIONS: The found statistical association of new environmental markers with T1D calls for replication in other cohorts and investigation of new environmental areas. TRIAL REGISTRATION: Clinical-Trial.gov NCT02212522 . Registered August 6, 2014.

13.
J Sleep Res ; 24(4): 425-31, 2015 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-25703309

RESUMO

The purpose of this study was to determine whether the association between obstructive sleep apnea severity and glucose control differs between patients with newly diagnosed and untreated type 2 diabetes, and patients with known and treated type 2 diabetes. This multicentre cross-sectional study included 762 patients investigated by sleep recording for suspected obstructive sleep apnea, 497 of whom were previously diagnosed and treated for type 2 diabetes (treated diabetic patients), while 265 had no medical history of diabetes but had fasting blood glucose ≥126 mg dL(-1) and/or glycated haemoglobin (HbA1c ) ≥6.5% consistent with newly diagnosed type 2 diabetes (untreated diabetic patients). Multivariate regression analyses were performed to evaluate the independent association between HbA1c and obstructive sleep apnea severity in treated and untreated patients with diabetes. In untreated diabetic patients, HbA1c was positively associated with apnea-hypopnea index (P = 0.0007) and 3% oxygen desaturation index (P = 0.0016) after adjustment for age, gender, body mass index, alcohol habits, metabolic dyslipidaemia, hypertension, statin use and study site. The adjusted mean value of HbA1c increased from 6.68% in the lowest quartile of the apnea-hypopnea index (<17) to 7.20% in the highest quartile of the apnea-hypopnea index (>61; P = 0.033 for linear trend). In treated patients with diabetes, HbA1c was associated with non-sleep variables, including age, metabolic dyslipidaemia and insulin use, but not with obstructive sleep apnea severity. Obstructive sleep apnea may adversely affect glucose control in patients with newly diagnosed and untreated type 2 diabetes, but may have a limited impact in patients with overt type 2 diabetes receiving anti-diabetic medications.


Assuntos
Glicemia/metabolismo , Diabetes Mellitus Tipo 2/complicações , Diabetes Mellitus Tipo 2/terapia , Apneia Obstrutiva do Sono/complicações , Apneia Obstrutiva do Sono/fisiopatologia , Glicemia/análise , Estudos Transversais , Diabetes Mellitus Tipo 2/diagnóstico , Diabetes Mellitus Tipo 2/tratamento farmacológico , Feminino , Hemoglobinas Glicadas/análise , Humanos , Hipoglicemiantes/uso terapêutico , Masculino , Pessoa de Meia-Idade , Oxigênio/sangue , Polissonografia , Índice de Gravidade de Doença , Sono
14.
Arterioscler Thromb Vasc Biol ; 33(9): 2162-71, 2013 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-23846499

RESUMO

OBJECTIVE: Some mutations in LMNA, encoding A-type lamins, are responsible for Dunnigan-type-familial partial lipodystrophy (FPLD2), with altered fat distribution and metabolism. The high prevalence of early and severe cardiovascular outcomes in these patients suggests that, in addition to metabolic risk factors, FPLD2-associated LMNA mutations could have a direct role on the vascular wall cells. APPROACH AND RESULTS: We analyzed the cardiovascular phenotype of 19 FPLD2 patients aged >30 years with LMNA p.R482 heterozygous substitutions, and the effects of p.R482W-prelamin-A overexpression in human coronary artery endothelial cells. In 68% of FPLD2 patients, early atherosclerosis was attested by clinical cardiovascular events, occurring before the age of 45 in most cases. In transduced endothelial cells, exogenous wild-type-prelamin-A was correctly processed and localized, whereas p.R482W-prelamin-A accumulated abnormally at the nuclear envelope. Patients' fibroblasts also showed a predominant nuclear envelope distribution with a decreased rate of prelamin-A maturation. Only p.R482W-prelamin-A induced endothelial dysfunction, with decreased production of NO, increased endothelial adhesion of peripheral blood mononuclear cells, and cellular senescence. p.R482W-prelamin-A also induced oxidative stress, DNA damages, and inflammation. These alterations were prevented by treatment of endothelial cells with pravastatin, which inhibits prelamin-A farnesylation, or with antioxidants. In addition, pravastatin allowed the correct relocalization of p.R482W-prelamin-A within the endothelial cell nucleus. These data suggest that farnesylated p.R482W-prelamin-A accumulation at the nuclear envelope is a toxic event, leading to cellular oxidative stress and endothelial dysfunction. CONCLUSIONS: LMNA p.R482 mutations, responsible for FPLD2, exert a direct proatherogenic effect in endothelial cells, which could contribute to patients' early atherosclerosis.


Assuntos
Aterosclerose/genética , Células Endoteliais/metabolismo , Lamina Tipo A/genética , Lamina Tipo A/metabolismo , Lipodistrofia Parcial Familiar/genética , Mutação , Adulto , Idade de Início , Antioxidantes/farmacologia , Aterosclerose/epidemiologia , Aterosclerose/metabolismo , Aterosclerose/patologia , Adesão Celular , Senescência Celular , Técnicas de Cocultura , Dano ao DNA , Células Endoteliais/efeitos dos fármacos , Células Endoteliais/patologia , Feminino , Fibroblastos/metabolismo , Predisposição Genética para Doença , Células HEK293 , Heterozigoto , Humanos , Inibidores de Hidroximetilglutaril-CoA Redutases/farmacologia , Lipodistrofia Parcial Familiar/epidemiologia , Lipodistrofia Parcial Familiar/metabolismo , Lipodistrofia Parcial Familiar/patologia , Masculino , Pessoa de Meia-Idade , Óxido Nítrico/metabolismo , Membrana Nuclear/metabolismo , Proteínas Nucleares/genética , Proteínas Nucleares/metabolismo , Estresse Oxidativo , Fenótipo , Prenilação , Precursores de Proteínas/genética , Precursores de Proteínas/metabolismo , Processamento de Proteína Pós-Traducional , Transdução Genética , Transfecção
15.
Clin Endocrinol (Oxf) ; 78(3): 373-8, 2013 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-22469460

RESUMO

CONTEXT: In men, obesity and the metabolic syndrome are accompanied by decreased testosterone levels, but little is known about the associations between visceral adipose tissue (VAT), VAT-related inflammation and sex steroids. OBJECTIVE: To examine the relative impact of VAT, abdominal subcutaneous adipose tissue (SAT) and interleukin 6 (IL-6), a marker of VAT-induced inflammation, on testosterone (T) and 17ß-oestradiol (E2) levels in dysmetabolic men. METHODS: We study the NUMEVOX cohort of 229 men, aged 27-77 years, who all had at least one metabolic syndrome criterion (on average three). IL-6, C-reactive protein, Homeostasis Model Assessment of (HOMA) insulin resistance index (HOMA-IR), liver enzymes, E2, LH, sex hormone-binding globulin (SHBG), T, waist circumference and body mass index (BMI) were measured; bioavailable testosterone (BT) was calculated from T and SHBG; MRI-assessed VAT and SAT were analysed in 109 of these men. RESULTS: Visceral adipose tissue was strongly correlated with E2 (Spearman r = 0.38, P < 0.001) and with BT/E2 ratio (r = -0.42, P < 0.001), while SAT was not correlated with either. IL-6 was correlated with E2 (r = 0.19, P = 0.007), BT (r = -0.19, P = 0.006) and BT/E2 ratio (r = -0.30 P < 0.001). In multivariate linear analysis, the relation between VAT and E2 was independent of age, BMI (P = 0.008), leptin (P < 0.001), T and SHBG. Log(IL-6) was significantly inversely related with log(BT) (P = 0.032) independently of age, VAT, leptin and HOMA-IR. CONCLUSIONS: 17ß-oestradiol levels were positively associated with VAT, but not with SAT, while T and BT were negatively and independently associated with IL-6. The significant inverse association between IL-6 and T suggests an important role of low-grade visceral fat inflammation in the central hypogonadism associated with the metabolic syndrome.


Assuntos
Inflamação/metabolismo , Gordura Intra-Abdominal/metabolismo , Esteroides/sangue , Adulto , Idoso , Estradiol/sangue , Humanos , Inflamação/sangue , Interleucina-6/sangue , Masculino , Pessoa de Meia-Idade , Testosterona/sangue
16.
Clin Endocrinol (Oxf) ; 79(4): 517-22, 2013 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-23121021

RESUMO

BACKGROUND: SHBG and liver enzymes levels are both associated with the risk of type 2 diabetes. However, the relationship between SHBG with liver enzymes and intrahepatic fat content remain poorly understood. OBJECTIVE: To investigate whether SHBG is correlated with glucose and lipids levels and whether this association depends on fatty liver content, liver enzymes or sex hormone concentrations. DESIGN AND PATIENTS: We studied 233 dysmetabolic men with measures of plasma SHBG, total testosterone, 17ß-oestradiol, glucose, adiponectin, liver enzymes and hepatokines. Intrahepatic liver fat and visceral fat contents were measured by magnetic resonance imaging in 108 of these individuals. RESULTS: After adjustment for age, SHBG concentration was inversely correlated with fasting glucose (ßstandardized  = -0·21, P = 0·0007), HbA1c (ßstandardized  = -0·27, P < 0·0001), triglycerides (ßstandardized  = -0·19, P = 0·003) and positively correlated with HDL-Cholesterol (ßstandardized  = 0·14, P = 0·03). These correlations persisted after adjustment for either total testosterone or 17ß-oestradiol levels. SHBG was not related to either fetuin A or FGF 21 concentrations. The inverse association of SHBG with HbA1c and glycaemia was not altered after adjusting for liver markers but was no longer significant after adjustment for hepatic fat content. CONCLUSION: The significant association between SHBG and fasting glycaemia, HbA1c and lipid levels in dysmetabolic men was not related to either sex hormones or markers of liver function, but was dependent on intrahepatic fat. This suggests that intrahepatic fat, but not alterations in liver function markers, may be involved in the association between SHBG and glucose and lipid metabolism.


Assuntos
Tecido Adiposo/metabolismo , Hormônios Esteroides Gonadais/sangue , Fígado/metabolismo , Globulina de Ligação a Hormônio Sexual/metabolismo , Adiponectina/sangue , Adulto , Idoso , Análise de Variância , Glicemia/metabolismo , HDL-Colesterol/sangue , LDL-Colesterol/sangue , Jejum/sangue , Gorduras/metabolismo , Hemoglobinas Glicadas/metabolismo , Humanos , Insulina/sangue , Gordura Intra-Abdominal/metabolismo , Fígado/enzimologia , Masculino , Pessoa de Meia-Idade , Testosterona/sangue , Triglicerídeos/sangue
17.
Diabetes Metab ; 49(3): 101429, 2023 05.
Artigo em Inglês | MEDLINE | ID: mdl-36736892

RESUMO

BACKGROUND: Type 1 diabetes mellitus (T1DM) and type 2 diabetes mellitus (T2DM) increase risks of cardiovascular (CV) and renal disease compared with diabetes-free populations. There are only a few studies comparing T1DM and T2DM for the relative risk of these clinical events. METHODS: All adult patients hospitalized in French hospitals in 2013 with at least 5 years of follow-up were identified and categorized by their diabetes status. A total of 50,623 patients with T1DM (age 61.4 ± 18.6, 53% male) and 425,207 patients with T2DM (age 68.6 ± 14.3, 55% male) were followed over a median period of 5.3 years (interquartile range: 2.8 - 5.8 years). Prevalence and event rates of myocardial infarction (MI), heart failure (HF), ischemic stroke, chronic kidney disease (CKD), all-cause death and CV death were assessed with age stratification of 10-year intervals. For clinical events during follow-up, we report hazard ratios (HRs) in T1DM relative to T2DM. RESULTS: The age and sex-adjusted prevalence of CV diseases was higher in T2DM for ages above 40 years whereas the prevalence of CKD was more common in T1DM between ages 18 and 70 years. During 2,033,239 person-years of follow-up, age and sex-adjusted HR event rates comparing T1DM, versus T2DM as reference, showed that MI and HF relative risks were increased above 60 years (1.2 and 1.4 -fold). HR of ischemic stroke did not markedly differ between T1DM and T2DM. Risk of incident CKD was 2.4-fold higher in T1DM above 60 years. All-cause death HR risk was 1.1-fold higher in T1DM after 60 years and the CV death risk was 1.15-fold higher in T1DM between 60 and 69 years compared to T2DM. CONCLUSIONS: Although the crude prevalent burden of CV diseases may be lower in T1DM than in T2DM, patients with T1DM may have a higher risk of incident MI, HF, all-cause death and CV death above 60 years of age, highlighting the need for improved prevention in this population.


Assuntos
Doenças Cardiovasculares , Diabetes Mellitus Tipo 1 , Diabetes Mellitus Tipo 2 , Insuficiência Cardíaca , AVC Isquêmico , Infarto do Miocárdio , Insuficiência Renal Crônica , Adulto , Humanos , Masculino , Pessoa de Meia-Idade , Idoso , Idoso de 80 Anos ou mais , Pré-Escolar , Feminino , Diabetes Mellitus Tipo 2/complicações , Diabetes Mellitus Tipo 2/epidemiologia , Diabetes Mellitus Tipo 1/complicações , Diabetes Mellitus Tipo 1/epidemiologia , Incidência , Prevalência , Doenças Cardiovasculares/epidemiologia , Doenças Cardiovasculares/etiologia , Insuficiência Cardíaca/epidemiologia , Insuficiência Cardíaca/complicações , Infarto do Miocárdio/epidemiologia , Infarto do Miocárdio/complicações , Insuficiência Renal Crônica/complicações , Fatores de Risco
18.
Obes Surg ; 33(8): 2468-2474, 2023 08.
Artigo em Inglês | MEDLINE | ID: mdl-37391682

RESUMO

PURPOSE: The association between bariatric surgery outcome and blood levels of fibroblast growth factor 21 (FGF21) remains controversial. Many patients displayed stable or decreased FGF21 one year after bariatric surgery. Nevertheless, there is often an early increase FGF21 concentration in the post-surgery period. The aim of this study was to investigate the relationship between 3-month FGF21 response and percentage total weight loss at one year after bariatric surgery. MATERIALS AND METHODS: In this prospective monocentric study, a total of 144 patients with obesity grade 2-3 were included; 61% of them underwent a sleeve gastrectomy and 39% a Roux-en-Y gastric bypass. Data analysis was carried out to determine the relation between 3-month plasma FGF21 response and weight loss one year after bariatric surgery. Multiple adjustments were done including degree of weight loss after 3 months. RESULTS: FGF21 significantly increased between baseline and Month 3 (n = 144, p < 10-3), then decreased between Month 3 and Month 6 (n = 142, p = 0.047) and was not different from baseline at Month 12 (n = 142, p = 0.86). The 3-month-FGF21 response adjusted to body weight loss was not different between types of bariatric surgery. The 3-month-FGF21 response was associated to body weight loss at Month 6 (r = -0.19, p = 0.02) and Month 12 (r = -0.34, p < 10-4). After multiple regression analysis, only Month 12 body weight loss remained associated to 3-month FGF21 response (r = -0.3, p = 0.02). CONCLUSION: This study showed that the magnitude of changes in FGF21 at 3 months after bariatric surgery emerged as an independent predictor of one-year body weight loss irrespective of the type of surgery.


Assuntos
Cirurgia Bariátrica , Derivação Gástrica , Obesidade Mórbida , Humanos , Obesidade Mórbida/cirurgia , Estudos Prospectivos , Obesidade/cirurgia , Redução de Peso/fisiologia , Gastrectomia , Resultado do Tratamento , Estudos Retrospectivos
19.
Clin Res Cardiol ; 2023 Dec 04.
Artigo em Inglês | MEDLINE | ID: mdl-38047924

RESUMO

BACKGROUND: Non-obese patients with diabetes mellitus (DM) are becoming more prevalent, but their cardiovascular risk (CV) especially when accompanied with cardio-renal-metabolic co-morbidities (hypertension, chronic kidney disease, hyperlipidemia) is not well characterised. The aim of the study was to assess the CV risk among patients with DM in relation to obesity and cardio-renal-metabolic co-morbidities. MATERIALS AND METHODS: This was a cohort study of all patients with DM without a history of major adverse cardiovascular event who were hospitalized for any reason in France in 2013 with at least 5 years of follow-up. They were categorized by the presence of obesity vs no obesity, as well as three cardio-renal-metabolic co-morbidities: hypertension, chronic kidney disease, hyperlipidemia. 'Extremely unhealthy' patients with DM were defined as those having all 3 co-morbidities. RESULTS: There were 196,112 patients (mean age 65.7 (SD 13.7) years; 54.3% males) included into the analysis. During a mean follow-up of 4.69 ± 1.79 years, when adjusted for multiple covariates, the non-obese and 'extremely unhealthy' obese patients had the highest risk of CV death [aHR 1.40 (95% CI, 1.22-1.61) and 1.48 (95% CI, 1.25-1.75), respectively]. The 'extremely unhealthy' obese had the highest risk of MACE-HF [aHR 1.84 (95% CI, 1.72-1.97)] and new-onset AF [aHR 1.64 (95% CI, 1.47-1.83)]. CONCLUSION: Both non-obese and obese patients with DM with associated cardio-renal-metabolic co-morbidities are an 'extremely unhealthy' phenotype with the highest risk of CV death and CV events.

20.
Diabetes Metab ; 49(3): 101441, 2023 05.
Artigo em Inglês | MEDLINE | ID: mdl-36931430

RESUMO

AIM: Type 2 diabetes mellitus (T2DM) is a risk factor for cardiac and renal complications; its effect on cardiorenal syndromes is unknown. METHODS: In a French nationwide cohort of 5,123,193 patients hospitalized in 2012 with ≥5 years of follow-up, we assessed the effect of T2DM on cardiorenal syndrome (CRS) (using cardiorenal, renocardiac, and simultaneous subtypes) incidence and outcomes using 1:1 propensity matching. RESULTS: Among 4,605,236 adults without cardiorenal syndrome, 380,581 (8.5%) with T2DM were matched to 380,581 adults without T2DM. During follow-up, CRS occurred in 104,788 patients: simultaneous n = 25,225 (24.0%); cardiorenal n = 51,745 (49.4%); renocardiac n = 27,818 (26.5%). T2DM doubled the risk of incident CRS (1.30% versus 0.65%/year; adjusted hazard ratio (HR) for any cardiorenal syndrome: 2.14 [95% confidence interval 2.10;2.19]; renocardiac: 2.43 [2.34;2.53]; cardiorenal: 2.09 [2.03;2.15]; simultaneous: 1.94 [1.86;2.03]. Among the 26,396 adults with CRS in 2012, 11,355 (43.0%) had T2DM and were younger than non-diabetic adults (77.4 ± 9.5 versus 82.3 ± 10.0); 8,314 patients with T2DM were matched to 8,314 patients without. T2DM increased risk of: end-stage kidney disease, adjusted HR 1.50 [1.39;1.62]; myocardial infarction 1.35 [1.19;1.53]; cardiovascular death 1.20 [1.13;1.27]; heart failure 1.17 [1.12;1.21]; and all-cause death 1.09 [1.06;1.13], but not ischemic stroke. CONCLUSION: Patients with T2DM represent almost half of patients with CRS and are younger than their non-diabetic counterparts. T2DM doubles the risk of CRS and increases the risk of death, cardiovascular outcome, and end-stage kidney disease but not ischemic stroke after CRS.


Assuntos
Síndrome Cardiorrenal , Diabetes Mellitus Tipo 2 , Falência Renal Crônica , Acidente Vascular Cerebral , Adulto , Humanos , Diabetes Mellitus Tipo 2/complicações , Diabetes Mellitus Tipo 2/epidemiologia , Síndrome Cardiorrenal/epidemiologia , Síndrome Cardiorrenal/complicações , Estudos de Coortes , Hospitais , Acidente Vascular Cerebral/complicações
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