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The transition to adult health care (HCT, Health Care Transition), is the purposeful, planned movement of patients from paediatric to adult services. For the adolescent living with obesity (ALwO), the HCT represents a crucial window for effective intervention that can help improve body weight, adiposopathy, and metabolic complications. Nevertheless, no transition guidelines, models, and tools have been developed for these patients. The present statement of the Italian Society of Obesity examines the critical transition of ALwO from paediatric to adult healthcare. It synthesises current knowledge and identifies gaps in HCT of ALwO. Drawing on successful practices and evidence-based interventions worldwide, the paper explores challenges, including disparities and barriers, while advocating for patient and family involvement. Additionally, it discusses barriers and perspectives within the Italian health care scenario. The need for specialised training for healthcare providers and the impact of transition on healthcare policies are also addressed. The conclusions underscore the significance of well-managed transitions. The SIO recognises that without proper support during this transition, ALwOs risk facing a gap in healthcare delivery, exacerbating their condition, and increasing the likelihood of complications. Addressing this gap requires concerted efforts to develop effective transition models, enhance healthcare provider awareness, and ensure equitable access to care for all individuals affected by obesity. The document concludes by outlining avenues for future research and improvement.
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Obesidad , Transición a la Atención de Adultos , Humanos , Adolescente , Transición a la Atención de Adultos/normas , Italia , Adulto Joven , Obesidad/terapia , Atención a la Salud/normas , Adulto , Obesidad Infantil/terapiaRESUMEN
The main advantage of the laparo-assisted transanal endorectal pull-through technique (LA - TERPT) for Hirschsprung Disease (HD) is the respect to the rectal-anal anatomy. Postoperative complications have been observed recently. The present study aims to determine how often these postoperative complications occur in these patients. From January 2009 to December 2018, a retrospective analysis was conducted on 36 children (25 males) with HD who underwent LA-TERPT. Data were collected on the age of diagnosis and surgery, sex, the presence of other pathologies, and cases of enterocolitis. In all cases, anorectal manometry (ARM) was performed to evaluate the anal tone. The median age at diagnosis was 2 months and the mean age at surgery was 5 months. Nine related pathologies were identified: five cases of Down syndrome, one case of hypertrophic stenosis of the pylorus, atresia of the esophagus, polydactyly, and anorectal malformation. A patient with total colonic aganglionosis was identified through laparoscopic serummuscular biopsies. Enterocolitis was diagnosed in 7 cases before and 6 after surgery. At follow-up, the complications recorded were: 5 cases of constipation (treated with fecal softeners), one case of anal stenosis (patient with anorectal malformation), 16 cases of soiling (treated with enemas) and 1 child with fecal incontinence (treated with a transanal irrigation system). The ARM was performed in all 36 cases and showed normal anal tone, except for one case with anal hypotonia. LA-TERPT is an important surgical technique for HD. According to the literature, soiling is the most main complication after HD surgery, probably due to "pseudo-incontinence" with normal anal sphincter tone.
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Canal Anal , Enfermedad de Hirschsprung , Manometría , Complicaciones Posoperatorias , Humanos , Enfermedad de Hirschsprung/cirugía , Masculino , Femenino , Estudios Retrospectivos , Canal Anal/cirugía , Lactante , Complicaciones Posoperatorias/etiología , Manometría/métodos , Laparoscopía/métodos , Laparoscopía/efectos adversos , Enterocolitis/etiología , Enterocolitis/diagnóstico , Recto/cirugíaRESUMEN
The aim of the study was to investigate how obesity can influence sleep respiratory parameters in obstructive sleep apnea syndrome (OSAS) in children. METHODS: The study analyzes 56 Caucasian children and adolescents aged 11 ± 2.79 years with a BMI > 5th percentiles and a PSQ value ≥ 0.33. Children were divided into Obesity Group (OG) with BMI ≥ 95th and Control Group (CG) with 5th < BMI > 95th percentile. All selected children underwent PG. Respiratory parameters AHI (Apnea-Hypopnea Index), SaO2 (Saturation of Oxygen), ODI (Oxygen Desaturation Index), and Nadir (the lowest value of SaO2 registered during PG) were extracted from the PG. AHI was used to divide the severity of OSAS into four levels: snoring (AHI ≤ 1), mild (AHI > 1 and ≤5), moderate (AHI > 5 and <10), and severe (AHI ≥ 10). RESULTS: The comparison analysis between the OG and CG showed a statistical significance only for ODI (p = 0.02). A statistically significant correlation between BMI and AHI (r = 0.02), SaO2 (r = 0.01), and Nadir O2 (r = 0.02) was found. CONCLUSIONS: There was no strong correlation between obesity and OSAS, but a positive association was found between BMI and AHI severity.
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Coronavirus disease of 2019 (COVID-19), caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), may be complicated by life-threatening interstitial pneumonia. SARS-CoV-2 infection may also damage several tissues and/or organs beyond the lungs, including the liver. However, controversy still exists as to whether SARS-CoV-2-induced liver alterations can have an impact on the outcome of COVID-19. The aim of this study was therefore to assess whether SARS-CoV-2-infected patients with liver abnormalities at the time of hospital referral had a worse outcome with respect to patients with no liver biochemistry alterations. To this end, the medical records of 123 patients admitted to our COVID center between the end of 2020 and spring 2021 were retrospectively reviewed. Patients were divided into two groups: those with normal liver biochemistries (group 1, 77 patients) and those with altered liver function tests (group 2, 46 patients). Serum levels of aminotransferases (AST and ALT) and bile duct cell injury markers (γ-GT and ALP) were used to dichotomize patients. A higher percentage of patients with liver enzyme alterations were found to develop COVID-19 pneumonia with respect to group 1 patients (74% vs. 65%); moreover, they needed more days of respiratory support and, more importantly, more intensive administration of supplemental oxygen. A statistically significant correlation was also found between aminotransferase levels and duration of respiratory support. The mortality rate was not superior in group 2 vs. group 1 patients. In conclusion, liver abnormalities on admission predisposed COVID-19 patients to development of more severe interstitial pneumonia, because of a longer requirement for supplemental oxygen and a more intensive respiratory support, indicative of a worse disease evolution in these patients.
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COVID-19 , Hepatopatías , Humanos , COVID-19/complicaciones , SARS-CoV-2 , Estudios Retrospectivos , Alanina Transaminasa , OxígenoRESUMEN
BACKGROUND: Obesity and kidney damage have been closely linked in adults, but little is still known in childhood. OBJECTIVE: To identify predictors of kidney damage in children with metabolically healthy (MHO) and metabolically unhealthy (MUO) obesity phenotypes. METHODS: We retrospectively examined 396 children with obesity (mean age 10.72 ± 2.71 years, body mass index-standard deviation score, BMI-SDS, 2.23 ± 0.57) stratified according to metabolic phenotypes. Kidney damage was defined as the presence of reduced estimated glomerular filtration rate (eGFR < 90 mL/min/1.73m2) and/or albuminuria (≥ 30 mg/g urinary creatinine). RESULTS: Kidney damage was found in 20.9% of the study population. Children with kidney damage had higher BMI-SDS, homeostasis model assessment of insulin resistance (HOMA-IR), and inflammation markers levels and increased prevalence of non-alcoholic fatty liver disease (NAFLD) than those without kidney damage (all p < 0.005). MUO and MHO subjects had respectively an odds ratio (OR) to show kidney damage of of 1.92 (95%CI:1.22-3.01; p = 0.005) and 1.05 (95%CI:1.00-1.09; p = 0.028) after adjustments. Moreover, we found that only HOMA-IR was closely associated to kidney damage in MUO group (OR = 2.07;95%CI:1.20-3.57; p = 0.007), while HOMA-IR (OR = 1.15;95%CI:1.02-1.29; p = 0.011) and uric acid (OR = 1.15;95% CI:1.02-1.30; p = 0.010) were the only significant risk factors for kidney damage in MHO group. CONCLUSION: An increased risk of kidney damage has been observed in children with obesity and in particular in those with MUO phenotype. As their role on kidney function, HOMA-IR should be monitored in MUO children and both HOMA-IR and uric acid in MHO children.
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Enfermedades Renales , Síndrome Metabólico , Adulto , Humanos , Niño , Adolescente , Estudios Retrospectivos , Ácido Úrico , Obesidad/complicaciones , Obesidad/epidemiología , Factores de Riesgo , Índice de Masa Corporal , Fenotipo , Riñón , Síndrome Metabólico/epidemiologíaRESUMEN
BACKGROUND: Dupilumab is a new biological drug approved for the treatment of type 2 inflammatory diseases, such as asthma. Dupilumab is a fully humanized monoclonal antibody that acts against both interleukin-4 and interleukin-13 receptors. This study evaluated the time--dependent effect of dupilumab on asthma exacerbations and quality of life in adolescents with uncontrolled severe asthma. MATERIALS AND METHODS: Five adolescents suffering from uncontrolled severe asthma and treated with dupilumab were recruited. All subjects were evaluated for 4, 12, and 24 weeks after the first dose of dupilumab. Outcome measures included lung function, fractional exhaled nitric oxide, asthma control and quality of life assessed by validated questionnaires (Asthma Control Test and Asthma Control Questionnaire). RESULTS: The quality of life improved quickly after 4 weeks of treatment and 80% of adolescents halved the dose of inhaled corticosteroids necessary to control asthma symptoms. These results were still maintained for 24 weeks after start of the therapy. None of the patients had any asthma exacerbation during the study period. CONCLUSION: Results of this study demonstrated that dupilumab was quickly effective to reduce asthma exacerbation and ameliorate quality of life in severe asthmatic adolescents.
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Asma , Calidad de Vida , Humanos , Adolescente , Proyectos Piloto , Anticuerpos Monoclonales Humanizados/uso terapéutico , Asma/tratamiento farmacológicoRESUMEN
Limited data are available on outcomes among COVID-19 patients beyond the acute phase of the disease. All-cause mortality among our COVID-19 patients one year after hospital discharge and factors/conditions associated with death were evaluated. All patients discharged from our COVID center were periodically evaluated by clinical assessment and by digital healthcare registry consultation. All findings acquired on discharge day represented the baseline data and were utilized for statistics. Of the 208 patients admitted, 187 patients were discharged. Among these, 17 patients died within 12 months (non-survivors). Compared to survivors, non-survivor patients were significantly (p < 0.05) older, exhibited significantly greater comorbidities and prevalence of active malignancy, heart failure, and arrhythmias, and showed significantly higher circulating levels of B-type natriuretic peptide, troponin, C-reactive protein, and d-dimer, as well as a longer heart-rate-corrected QT interval and significantly lower values for the glomerular filtration rate. Following multivariate analysis, cancer, arrhythmias, and high C-reactive protein levels were found to be factors independently associated with death. At the one-year follow-up, about 9% of patients discharged from our COVID center had a fatal outcome. Ageing, myocardial injury, impaired renal function, and, in particular, cancer, hyperinflammation, and arrhythmias represented strong predictors of the worst long-term outcome among COVID-19 patients.
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Background: Dupilumab is a new biological drug approved for the treatment of type 2 inflammatory diseases, such as asthma. Dupilumab is a fully humanized monoclonal antibody that acts against both interleukin-4 and interleukin-13 receptors. This study evaluated the time--dependent effect of dupilumab on asthma exacerbations and quality of life in adolescents with uncontrolled severe asthma. Materials and Methods: Five adolescents suffering from uncontrolled severe asthma and treated with dupilumab were recruited. All subjects were evaluated for 4, 12, and 24 weeks after the first dose of dupilumab. Outcome measures included lung function, fractional exhaled nitric oxide, asthma control and quality of life assessed by validated questionnaires (Asthma Control Test and Asthma Control Questionnaire). Results: The quality of life improved quickly after 4 weeks of treatment and 80% of adolescents halved the dose of inhaled corticosteroids necessary to control asthma symptoms. These results were still maintained for 24 weeks after start of the therapy. None of the patients had any asthma exacerbation during the study period. Conclusion: Results of this study demonstrated that dupilumab was quickly effective to reduce asthma exacerbation and ameliorate quality of life in severe asthmatic adolescents (AU)
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Humanos , Masculino , Femenino , Niño , Adolescente , Anticuerpos Monoclonales Humanizados/uso terapéutico , Asma/tratamiento farmacológico , Índice de Severidad de la Enfermedad , Resultado del Tratamiento , Proyectos PilotoRESUMEN
Childhood obesity and its related comorbidities have become major health issues over the last century. Among these comorbidities, cardiovascular diseases, especially hypertension, are the most significant. Recently, a polymorphism affecting the activity of lanosterol synthase has been associated with an increased risk of hypertension in adolescents. In this study, we aimed to investigate the effect of LSS rs2254524 polymorphism on blood pressure in children and adolescents with obesity. We enrolled 828 obese children aged 6-17 years. Subjects carrying the A allele showed higher rates of systolic and diastolic stage I hypertension and stage II hypertension. Carriers of the A allele showed a 2.4-fold (95% C.I. 1.5-4.7, p = 0.01) higher risk for stage II hypertension and a 1.9-fold higher risk for stage I hypertension (95% C.I. 1.4-2.6, p < 0.0001). The risk was independent of confounding factors. In conclusion, LSS rs2254524 worsens the cardiovascular health of children and adolescents with obesity, increasing their blood pressure.
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Enfermedades Cardiovasculares , Hipertensión , Obesidad Infantil , Niño , Adolescente , Humanos , Obesidad Infantil/complicaciones , Obesidad Infantil/epidemiología , Obesidad Infantil/genética , Hipertensión/epidemiología , Hipertensión/genética , Presión Sanguínea/genética , AlelosRESUMEN
OBJECTIVE: Leptin plays a key role in the regulation of body weight and other endocrine systems. Recently, impairment of leptin gene transcription due to genetic variations in a long noncoding RNA (lncOb) has been described. This retrospective study aims to characterize the clinical and metabolic phenotype of children and adolescents with obesity who were homozygous for the lncOb rs10487505 leptin lowering allele. METHODS: Enrolled children underwent an anthropometrical evaluation, biochemical assessment, and genotyping for lncOb rs10487505. Plasma leptin levels were assessed in 150 participants. A total of 434 patients were included and divided into two groups according to rs10487505 recessive inheritance (CC vs. GG/GC). RESULTS: Children who were homozygous for the C allele showed higher fasting insulin (p = 0.01), homeostasis model assessment of insulin resistance (p = 0.01), lower whole-body insulin sensitivity index (p = 0.02), and lower disposition index (p = 0.03). Moreover, CC patients presented with a higher prevalence of prediabetes (9.3% vs. 3.4%, p = 0.04) and a 2.9-fold (95% CI: 1.1-7.9, p = 0.04) higher risk of prediabetes compared with G-carriers independently from confounders. Leptin plasma levels were significantly lower in the CC group (p = 0.002). Hormone levels correlated with BMI z score (r = 0.19, p = 0.04), fasting insulin (r = -0.34, p < 0.0001), homeostasis model assessment of insulin resistance (r = -0.33, p < 0.0001), and disposition index (r = 0.20, p = 0.04). CONCLUSIONS: The lncOb rs10487505 polymorphism affects leptin circulating levels, worsens insulin resistance, and heightens the risk of prediabetes in children and adolescents with obesity.
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Resistencia a la Insulina , Obesidad Infantil , Estado Prediabético , Humanos , Índice de Masa Corporal , Glucosa , Insulina , Resistencia a la Insulina/genética , Leptina/genética , Obesidad Infantil/genética , Estado Prediabético/genética , Estudios Retrospectivos , Niño , AdolescenteRESUMEN
INTRODUCTION: Recent studies show that neuropsychiatric disorders are the most frequent sequelae of COVID-19 in children. PURPOSE: Our work aimed to evaluate the impact of SARS-CoV-2 infection on behavior and sleep in children and adolescents. MATERIALS AND METHODS: We enrolled 107 patients aged 1.5-18 years who contracted COVID-19 between one year and one month prior to data collection, referred to the University of Campania Luigi Vanvitelli in Italy. We asked their parents to complete two standardized questionnaires for the assessment of behavior (Child Behavior CheckList (CBCL)) and sleep (Sleep Disturbance Scale for Children (SLDS)). We analysed and compared the results with a control group (pre-COVID-19 pandemic). RESULTS: In the COVID-19 group, the major results were found for sleep breathing disorders, sleep-wake transition disorders and disorders of initiating and maintaining sleep for the SDSC questionnaire, and internalizing scale, total scale and anxiety/depression for the CBCL questionnaire. The comparison of the CBCL results of the cases with the controls revealed statistically significant differences for the following items: internalizing scale, externalizing scale, somatic complaints, total score, thought problems [(p < 0.01)], anxious/depressed problems and withdrawn [(p < 0.001)]. CONCLUSIONS: COVID-19 has impacted children's and adolescents' mental health. Adolescents were the most affected patient group for internalizing problems, including anxiety and depression.
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This Position Statement updates the different components of the therapy of obesity (lifestyle intervention, drugs, and surgery) in children and adolescents, previously reported in the consensus position statement on pediatric obesity of the Italian Society of Pediatric Endocrinology and Diabetology and the Italian Society of Pediatrics. Lifestyle intervention is the first step of treatment. In children older than 12 years, pharmacotherapy is the second step, and bariatric surgery is the third one, in selected cases. Novelties are available in the field of the medical treatment of obesity. In particular, new drugs demonstrated their efficacy and safety and have been approved in adolescents. Moreover, several randomized control trials with other drugs are in process and it is likely that some of them will become available in the future. The increase of the portfolio of treatment options for obesity in children and adolescents is promising for a more effective treatment of this disorder.
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Obesidad Infantil , Pediatría , Niño , Humanos , Adolescente , Obesidad Infantil/cirugía , Consenso , Sociedades Médicas , ItaliaRESUMEN
Importance: Pediatric obesity is a growing health care burden. Understanding how the metabolic phenotype of youth with obesity may modify the effect of intestinal fermentation on human metabolism is key to designing early intervention. Objective: To assess whether adiposity and insulin resistance in youth may be associated with colonic fermentation of dietary fibers and its production of acetate, gut-derived hormone secretion, and adipose tissue lipolysis. Design, Setting, and Participants: Cross-sectional study of youths aged 15 to 22 years with body mass index in the 25th to 75th percentile or higher than the 85th percentile for age and sex throughout the New Haven County community in Connecticut. Recruitment, studies, and data collection occurred from June 2018 to September 2021. Youths were assigned to a lean, obese insulin sensitive (OIS), or obese insulin resistant (OIR) group. Data were analyzed from April 2022 to September 2022. Exposure: Participants consumed 20 g of lactulose during a continuous 10-hour sodium d3-acetate intravenous infusion to measure the rate of appearance of acetate in plasma. Main Outcomes and Measures: Plasma was obtained hourly to measure acetate turnover, peptide tyrosine tyrosine (PYY), ghrelin, active glucagon-like peptide 1 (GLP-1), and free fatty acids (FFA). Results: A total of 44 youths participated in the study (median [IQR] age, 17.5 [16.0-19.3] years; 25 [56.8%] were female; 23 [52.3%] were White). Consequent to lactulose ingestion, there was a reduction of plasma FFA, an improvement of adipose tissue insulin sensitivity index, an increase in colonic acetate synthesis, and an anorexigenic response characterized by an increased plasma concentration of PYY and active GLP-1 and a reduction of ghrelin in the subgroups. Compared with the lean and OIS groups, the OIR group showed a less marked median (IQR) rate of acetate appearance (OIR: 2.00 [-0.86 to 2.69] µmol × kg-1 × min-1; lean: 5.69 [3.04 to 9.77] µmol × kg-1 × min-1; lean vs OIR P = .004; OIS: 2.63 [1.22 to 4.52] µmol × kg-1 × min-1; OIS vs OIR P = .09), a blunted median (IQR) improvement of adipose insulin sensitivity index (OIR: 0.043 [ 0.006 to 0.155]; lean: 0.277 [0.220 to 0.446]; lean vs OIR P = .002; OIS: 0.340 [0.048 to 0.491]; OIS vs OIR P = .08), and a reduced median (IQR) PYY response (OIR: 25.4 [14.8 to 36.4] pg/mL; lean: 51.3 [31.6 to 83.3] pg/mL; lean vs OIR P = .002; OIS: 54.3 [39.3 to 77.2] pg/mL; OIS vs OIR P = .011). Conclusions and Relevance: In this cross-sectional study, lean, OIS, and OIR youth demonstrated different associations between colonic fermentation of indigestible dietary carbohydrates and the metabolic response, with OIR youth showing minimal metabolic modifications as compared with the other 2 groups. Trial Registration: ClinicalTrials.gov Identifier: NCT03454828.
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Resistencia a la Insulina , Obesidad Infantil , Niño , Adolescente , Femenino , Humanos , Masculino , Fermentación , Ghrelina , Estudios Transversales , Lactulosa , Insulina , Insulina Regular Humana , TirosinaRESUMEN
Background: Food allergy is common in the Mediterranean, especially concerning lipid transfer proteins (LTPs) allergy. LTPs are widespread plant food allergens in fruits, vegetables, nuts, pollen, and latex. Also, LTPs are prevalent food allergens in the Mediterranean area. They can sensitize via the gastrointestinal tract and cause a wide range of conditions: from mild reactions, such as oral allergy syndrome, to severe reactions, such as anaphylaxis. LTP allergy in the adult population is well described in the literature, concerning both the prevalence and clinical characteristics. However, there is poor knowledge about its prevalence and clinical manifestation in children living in the Mediterranean. Materials and Methods: This study, including 800 children aged from 1 to 18 years, investigated the prevalence of 8 different molecules of nonspecific LTP over time in an Italian pediatric population visited over the last 11 years. Results: About 52% of the test population was sensitized to at least one LTP molecule. For all the LTPs analyzed, sensitization increased over time. In particular, using the years 2010 through 2020 as a comparison, the major increases were observed for the LTPs of the English walnut Jug r 3, the peanut Ara h 9, and the plane tree Pla a 3 (about 50%); the increase of the LTP of the Hazelnut Cor a 8 was about 36%, and that of the LTP of the artemisia Art v 3 was approximately 30%. Conclusions: The latest evidence in the literature indicates an increase in food allergy prevalence in the general population, including children. Therefore, the present survey represents an interesting perspective about the pediatric population of the Mediterranean area, exploring the trend of LTP allergy.
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Hipersensibilidad a los Alimentos , Proteínas de Plantas , Adulto , Humanos , Niño , Estudios Retrospectivos , Hipersensibilidad a los Alimentos/epidemiología , Alérgenos , Italia/epidemiología , Reacciones Cruzadas , Antígenos de PlantasRESUMEN
Pediatric obesity has become in the last forty years the most common metabolic disease in children and adolescents affecting about 25% of the pediatric population in the western world. As obesity worsens, a whole-body insulin resistance (IR) occurs. This phenomenon is more pronounced during adolescence, when youth experience a high degree of insulin resistance due the production of growth hormone. As IR progresses, the blunted control of insulin on adipose tissue lipolysis causes an increased flux of fatty acids with FFA deposition in ectopic tissues and organs such as the liver, leading to the development of NAFLD. In this brief review, we will discuss the clinical implications of IR and NAFLD in the context of pediatric obesity. We will review the pathogenesis and the link between these two entities, the major pathophysiologic underpinnings, including the role of genetics and metagenomics, how these two entities lead to the development of type 2 diabetes, and which are the therapeutic options for NAFLD in youth.
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Diabetes Mellitus Tipo 2 , Resistencia a la Insulina , Enfermedad del Hígado Graso no Alcohólico , Obesidad Infantil , Niño , Humanos , Adolescente , Enfermedad del Hígado Graso no Alcohólico/complicaciones , Enfermedad del Hígado Graso no Alcohólico/epidemiología , Diabetes Mellitus Tipo 2/epidemiología , Obesidad Infantil/complicacionesRESUMEN
The definition of metabolic syndrome (MetS) in childhood is controversial. Recently, a modified version of the International Diabetes Federation (IDF) definition was proposed using reference data from an international population for high waist circumference (WC) and blood pressure (BP), while the fixed cutoffs for lipids and glucose were not changed. We analyzed MetS prevalence using this modified definition (MetS-IDFm) and its association with non-alcoholic fatty liver disease (NAFLD) in 1057 youths (age 6-17 years) with overweight/obesity (OW/OB). A comparison with another modified definition of MetS according to the Adult Treatment Panel III (MetS-ATPIIIm) was performed. The prevalence of MetS-IDFm was 27.8% and 28.9% by MetS-ATPIIIm. The Odds (95% Confidence Intervals) of NAFLD was 2.70 (1.30-5.60) (p = 0.008) for high WC, 1.68 (1.25-2.26)(p = 0.001) for MetS, 1.54 (1.12-2.11)(p = 0.007) for low HDL-Cholesterol, 1.49 (1.04-2.13)(p = 0.032) for high triglycerides and 1.37 (1.03-1.82)(p = 0.033) for high BP. No substantial difference was found in the prevalence of MetS-IDFm and frequency of NAFLD compared to Mets-ATPIIIm definition. Our data demonstrate that one third of youths with OW/OB have MetS, whichever was the criterion. Neither definition was superior to some of their components in identifying youths with OW/OB at risk for NAFLD.
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BACKGROUND: The main purpose of the study is to assess the association between obstructive sleep apnea (OSA) and insulin secretion in children with obesity. METHODS: We enrolled children and adolescents who attended our pediatric clinic because of obesity and OSA. Glucose homeostasis was assessed through standard 2-h oral glucose tolerance test (OGTT). Nocturnal cardio-respiratory polygraphy was performed for OSA diagnosis. Twenty-two patients underwent a 3-h OGTT to investigate insulin secretion and sensitivity through the oral-minimal model. RESULTS: seventy-seven children and adolescents were included in the study. Based on OSA severity, the cohort was divided into three groups (29 mild, 29 moderate, and 19 severe OSA). The group with mild OSA showed lower levels of 30-min glucose (p = 0.01) and 60-min glucose (p = 0.03), and lower prevalence of elevated 1-h glucose (10.4% versus 44.8% in moderate and 31.6% in severe OSA, p = 0.01). The odds for elevated 1-h plasma glucose was 6.2-fold (95%CI 1.6-23.4) higher in subjects with moderate and severe OSA compared to mild OSA (p = 0.007) independent of confounders. Spearman correlation test revealed a positive correlation between 30-min plasma glucose and apnea-hypopnea index (AHI, r = 0.31, p = 0.01), oxygen desaturation index (ODI, r = 0.31, p = 0.009), and mean desaturation (r = 0.25, p = 0.04). The 3-h OGTT study included 22 participants (7 mild, 9 moderate, and 6 severe OSA). The group with mild OSA showed a higher dynamic, static, and total insulin secretion compared to those with moderate and severe OSA (p < 0.0001, p = 0.007, p = 0.007, respectively). AHI was significantly correlated to dynamic insulin secretion (r = -0.48, p = 0.02). CONCLUSIONS: OSA might impair beta-cell function reducing the pool of promptly releasable insulin in children and adolescents with obesity, in the absence of an effect on insulin sensitivity.
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Células Secretoras de Insulina , Obesidad Infantil , Apnea Obstructiva del Sueño , Adolescente , Niño , Femenino , Humanos , Masculino , Glucemia/metabolismo , Células Secretoras de Insulina/patología , Obesidad Infantil/complicaciones , Apnea Obstructiva del Sueño/complicaciones , Apnea Obstructiva del Sueño/fisiopatología , Prueba de Tolerancia a la GlucosaRESUMEN
Introduction: DLK1 gene is considered a molecular gatekeeper of adipogenesis. DLK1 mutations have been reported as a cause of central precocious puberty associated with obesity and metabolic syndrome with undetectable DLK1 serum levels. We investigated the association between DLK1 circulating levels with clinical and biochemical parameters in obese adolescents and healthy controls. Methods: Sixty-five obese adolescents and 40 controls were enrolled and underwent a complete clinical examination and biochemical assessment for glucose homeostasis and DLK1 plasma levels. Results: We observed lower DLK1 levels in cases compared to controls. Moreover, we found a negative correlation between DLK1 and HOMA-IR and a direct correlation with insulin-sensitivity index. Discussion: Our findings suggest that DLK1 might be involved in metabolic derangement in obese children.