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Normal ambulatory blood pressure in young adults with 21-hydroxylase enzyme deficiency undergoing glucocorticoid replacement therapy
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Borges, Juliano Henrique

; Camargo, Daniela Albiero

; Sewaybricker, Leticia Esposito

; Santoro, Renata Isa

; Oliveira, Daniel Minutti de

; Lemos-Marini, Sofia Helena Valente de

; Geloneze, Bruno

; Guerra-Júnior, Gil

; Gonçalves, Ezequiel Moreira

Archives of Endocrinology and Metabolism

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feb 2023, Volume 67 N. 1 Pages 64 - 72

Abstract: En | Text: En | PDF: En

ABSTRACT Objective: Herein, we compared ambulatory blood pressure (ABP) between young adults with congenital adrenal hyperplasia (CAH) due to 21-hydroxylase enzyme (21OHase) deficiency and a control group. Additionally, we analyzed correlations between the glucocorticoid dose and androgen levels and ABP parameters. Subjects and methods: This case-control study included 18 patients (6 males and 12 females) and 19 controls (8 males and 11 females) matched by age (18-31 years). ABP monitoring was used to estimate blood pressure (BP) over a 24-h period. Results: No difference was noted between patients and controls in terms of systolic BP (males, 115.5 ± 5.6 vs. 117.0 ± 9.3, P = 0.733; and females, 106.4 ± 7.9 vs. 108.4 ± 7.6, P = 0.556, respectively) and diastolic BP during 24 h (males, 62.8 ± 7.5 vs. 66.2 ± 5.6, P = 0.349; and females, 62.7 ± 4.9 vs. 62.3 ± 4.9, P = 0.818, respectively). Systolic and diastolic BP and pulse pressure during daytime and nocturnal periods were similar between patients and controls. Furthermore, no differences were detected in the percentage of load and impaired nocturnal dipping of systolic and diastolic BP between patients and controls during the 24-h period. Additionally, the glucocorticoid dose (varying between r = −0.24 to 0.13, P > 0.05) and androgens levels (varying between r = 0.01 to 0.14, P > 0.05) were not associated with ABP parameters. Conclusion: No signs of an elevated risk for hypertension were observed based on ABP monitoring in young adults with CAH attributed to 21OHase deficiency undergoing glucocorticoid replacement therapy.

https://doi.org/10.20945/2359-3997000000504

The threshold value for identifying insulin resistance (HOMA-IR) in an admixed adolescent population: A hyperglycemic clamp validated study
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Silva, Cleliani de Cassia da

; Zambon, Mariana Porto

; Vasques, Ana Carolina Junqueira

; Camilo, Daniella Fernandes

; Antonio, Maria Ângela Reis de Góes Monteiro

; Geloneze, Bruno

Archives of Endocrinology and Metabolism

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feb 2023, Volume 67 N. 1 Pages 119 - 125

Abstract: En | Text: En | PDF: En

ABSTRACT Objectives: To validate the homeostasis model assessment (HOMA) of insulin resistance (IR) as a surrogate to the hyperglycemic clamp to measure IR in both pubertal and postpubertal adolescents, and determine the HOMA-IR cutoff values for detecting IR in both pubertal stages. Subjects and methods: The study sample comprised 80 adolescents of both sexes (aged 10-18 years; 37 pubertal), in which IR was assessed with the HOMA-IR and the hyperglycemic clamp. Results: In the multivariable linear regression analysis, adjusted for sex, age, and waist circumference, the HOMA-IR was independently and negatively associated with the clamp-derived insulin sensitivity index in both pubertal (unstandardized coefficient – B = −0.087, 95% confidence interval [CI] = −0.135 to −0.040) and postpubertal (B = −0.101, 95% CI, −0.145 to −0.058) adolescents. Bland-Altman plots showed agreement between the predicted insulin sensitivity index and measured clamp-derived insulin sensitivity index in both pubertal stages (mean = −0.00 for pubertal and postpubertal); all P > 0.05. The HOMA-IR showed a good discriminatory power for detecting IR with an area under the receiver operator characteristic curve of 0.870 (95% CI, 0.718-0.957) in pubertal and 0.861 (95% CI, 0.721-0.947) in postpubertal adolescents; all P < 0.001. The optimal cutoff values of the HOMA-IR for detecting IR were > 3.22 (sensitivity, 85.7; 95% CI, 57.2-98.2; specificity, 82.6; 95% CI, 61.2-95.0) for pubertal and > 2.91 (sensitivity, 63.6; 95% CI, 30.8-89.1, specificity, 93.7; 95%CI, 79.2-99.2) for postpubertal adolescents. Conclusion: The threshold value of the HOMA-IR for identifying insulin resistance was > 3.22 for pubertal and > 2.91 for postpubertal adolescents.

https://doi.org/10.20945/2359-3997000000533

Parental body mass index and maternal gestational weight gain associations with offspring body composition in young women from the Nutritionists’ Health Study
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Freitas, Renata Germano Borges de Oliveira Nascimento

; Vasques, Ana Carolina Junqueira

; Ribeiro, Francieli Barreiro

; Solar, Isabela

; Hanada, Alfredo Shigueo

; Barbosa, Marina Gomes

; Valente, Angélica Marques Martins

; Pititto, Bianca de Almeida

; Eshriqui, Ilana

; Lopes, Tito Lívio da Cunha

; Geloneze, Bruno

; Ferreira, Sandra Roberta Gouvea

Archives of Endocrinology and Metabolism

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feb 2023, Volume 67 N. 1 Pages 101 - 110

Abstract: En | Text: En | PDF: En

ABSTRACT Objective: Intrauterine environment can induce fetal metabolic programming that predisposes to adiposity-related chronic diseases in its lifespan. We examined the associations of parental nutritional status and gestational weight gain with offspring body composition in early adulthood. Materials and methods: This is cross-sectional analysis of female participants of the NutriHS who were submitted to questionnaires, clinical examinations and body composition assessed by DXA. Association of pre-conception parental BMI and maternal gestational weight gain (exposures) with body composition measurements (outcomes) were analyzed using multiple linear models adjusted for Directed Acyclic Graphs-based covariables (maternal and paternal educational level, maternal age, and tobacco, alcohol and/or drugs use). The sample included 124 women (median 28 (24-31) years) with a mean BMI of 25.4 ± 4.7 kg/m2. Results: No association between previous paternal BMI and offspring’s body composition was detected. In the fully adjusted linear regression model, maternal BMI was associated with offspring’s total lean mass (β = 0.66, p = 0.001), appendicular skeletal muscle mass index (ASMI) (β = 0.11, p = 0.003) and fat mass index (FMI) (β = 0.03, p = 0.039). Gestational weight gain was associated with increased offspring’s BMI (OR 1.12 [95% CI 1.02-1.20], p = 0.01). The linear regression model adjusted for maternal age and maternal and paternal education levels showed associations of gestational weight gain with offspring’s ASMI (β = 0.42, p = 0.046), FMI (β = 0.22, p = 0.005) and android-to-gynoid fat ratio (β = 0.09, p = 0.035). Conclusion: Our findings suggest that preconception maternal BMI could influence lean mass and general adiposity of young adult female offspring and that gestational weight gain could be useful for predicting centrally distributed adiposity.

https://doi.org/10.20945/2359-3997000000516

Posicionamento sobre o Consumo de Gorduras e Saúde Cardiovascular – 2021
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Izar, Maria Cristina de Oliveira

; Lottenberg, Ana Maria

; Giraldez, Viviane Zorzanelli Rocha

; Santos Filho, Raul Dias dos

; Machado, Roberta Marcondes

; Bertolami, Adriana

; Assad, Marcelo Heitor Vieira

; Saraiva, José Francisco Kerr

; Faludi, André Arpad

; Moreira, Annie Seixas Bello

; Geloneze, Bruno

; Magnoni, Carlos Daniel

; Scherr, Carlos

; Amaral, Cristiane Kovacs

; Araújo, Daniel Branco de

; Cintra, Dennys Esper Corrêa

; Nakandakare, Edna Regina

; Fonseca, Francisco Antonio Helfenstein

; Mota, Isabela Cardoso Pimentel

; Santos, José Ernesto dos

; Kato, Juliana Tieko

; Beda, Lis Mie Masuzawa

; Vieira, Lis Proença

; Bertolami, Marcelo Chiara

; Rogero, Marcelo Macedo

; Lavrador, Maria Silvia Ferrari

; Nakasato, Miyoko

; Damasceno, Nagila Raquel Teixeira

; Alves, Renato Jorge

; Roberta Soares, Lara

; Costa, Rosana Perim

; Machado, Valéria Arruda

Arquivos Brasileiros de Cardiologia

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jan 2021, Volume 116 N. 1 Pages 160 - 212

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

https://doi.org/10.36660/abc.20201340 9969 downloads

Effect of biliopancreatic diversion on sleep quality and daytime sleepiness in patients with obesity and type 2 diabetes
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Mello, Mayra

; Vasques, Ana Carolina J.

; Pareja, José C.

; Oliveira, Maria da S. de

; Novaes, Fernanda S.

; Chaim, Élinton A.

; Geloneze, Bruno

Archives of Endocrinology and Metabolism

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dec 2017, Volume 61 N. 6 Pages 623 - 627

Abstract: En | Text: En | PDF: En

ABSTRACT Objective: The poor quality of sleep and the deprivation thereof have been associated with disruption of metabolic homeostasis, favoring the development of obesity and type 2 diabetes (T2DM). We aimed to evaluate the influence of biliopancreatic diversion (BPD) surgery on sleep quality and excessive daytime sleepiness of obese patients with T2DM, comparing them with two control groups consisting of obese and normal weight individuals, both normal glucose tolerant. Subjects and methods: Forty-two women were divided into three groups: LeanControl (n = 11), ObeseControl (n = 13), and ObeseT2DM (n = 18). The LeanC and ObeseC groups underwent all tests and evaluations once. The ObeseT2DM underwent BPD and were reassessed after 12 months. Pittsburgh Sleep Quality Index (PSQI) and Epworth Sleepiness Scale (ESS) were applied before and 12 months after BPD. Results: Before surgery, there was less daytime sleepiness in LeanC group (p = 0.013) compared with ObeseC and T2DMObese groups. The two obese groups did not differ regarding daytime sleepiness, demonstrating that the presence of T2DM had no influence on daytime sleepiness. After surgery, the daytime sleepiness (p = 0.002) and the sleep quality (p = 0.033) improved. The score for daytime sleepiness of operated T2DMObese group became similar to LeanC and lower than ObeseC (p = 0.047). Conclusion: BPD surgery has positively influenced daytime sleepiness and sleep quality of obese patients with T2DM, leading to normalization of daytime sleepiness 12 months after surgery. These results reinforce previously identified associations between sleep, obesity and T2DM in view of the importance of sleep in metabolic homeostasis, quality of life and health.

https://doi.org/10.1590/2359-3997000000314 959 downloads

CORRELATION BETWEEN PRE AND POSTOPERATIVE LEVELS OF GLP-1/GLP-2 AND WEIGHT LOSS AFTER ROUX-EN-Y GASTRIC BYPASS: A PROSPECTIVE STUDY
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CAZZO, Everton

; GESTIC, Martinho Antonio

; UTRINI, Murillo Pimentel

; PAREJA, José Carlos

; CHAIM, Elinton Adami

; GELONEZE, Bruno

; BARRETO, Maria Rita Lazzarini

; MAGRO, Daniéla Oliveira

ABCD. Arquivos Brasileiros de Cirurgia Digestiva (São Paulo)

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dec 2016, Volume 29 N. 4 Pages 257 - 259

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

RESUMO Racional: O papel de hormônios gastrointestinais sobre a homeostase glicêmica e a obtenção e manutenção da perda de peso após a cirurgia bariátrica parece ser elemento fundamental na compreensão dos benefícios observados após estes procedimentos. Objetivo: Determinar se há correlação entre os níveis pré e pós-operatórios de GLP-1 e GLP-2 com a perda do excesso de peso após o bypass gástrico em Y-de-Roux. Métodos: Estudo prospectivo exploratório que envolveu 11 indivíduos submetidos ao bypass gástrico, acompanhados por 12 meses. Os níveis GLP-1 e GLP-2 após um teste de refeição padrão foram determinados antes e 12 meses após a operação e então foram correlacionados com o percentual de perda do excesso de peso. Resultados: Houve aumento significativo da área sob a curva do GLP-2 após a operação (945,3±449,1 vs. 1787,9±602,7; p=0,0037); a área sob a curva do GLP-1 apresentou tendência não-significativa à elevação após o procedimento (709,6±320,4 vs. 1026,5±714,3; p=0,3808). O percentual médio de perda de peso foi 66,7±12,2%. Conclusão: Não houve nenhuma correlação significativa entre os níveis pré e pós-operatórios das áreas sob as curvas de GLP-1 e GLP-2 com o percentual de perda de peso atingido após um ano.

ABSTRACT Background: The role of gut hormones in glucose homeostasis and weight loss achievement and maintenance after bariatric surgery appears to be a key point in the understanding of the beneficial effects observed following these procedures. Aim: To determine whether there is a correlation between the pre and postoperative levels of both GLP-1 and GLP-2 and the excess weight loss after Roux-en-Y gastric bypass (RYGB). Methods: An exploratory prospective study which enrolled 11 individuals who underwent RYGB and were followed-up for 12 months. GLP-1 and GLP-2 after standard meal tolerance test (MTT) were determined before and after surgery and then correlated with the percentage of excess loss (%EWL). Results: GLP-2 AUC presented a significant postoperative increase (945.3±449.1 vs.1787.9±602.7; p=0.0037); GLP-1 AUC presented a non-significant trend towards increase after RYGB (709.6±320.4 vs. 1026.5±714.3; p=0.3808). Mean %EWL was 66.7±12.2%. There was not any significant correlation between both the pre and postoperative GLP-1 AUCs and GLP-2 AUCs and the %EWL achieved after one year. Conclusion: There was no significant correlation between the pre and postoperative levels of the areas under the GLP-1 and GLP-2 curves with the percentage of weight loss reached after one year.

https://doi.org/10.1590/0102-6720201600040010 2107 downloads

GLP-2: A POORLY UNDERSTOOD MEDIATOR ENROLLED IN VARIOUS BARIATRIC/METABOLIC SURGERY-RELATED PATHOPHYSIOLOGIC MECHANISMS
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CAZZO, Everton

; GESTIC, Martinho Antonio

; UTRINI, Murillo Pimentel

; CHAIM, Felipe David Mendonça

; GELONEZE, Bruno

; PAREJA, José Carlos

; CHAIM, Elinton Adami

; MAGRO, Daniéla Oliveira

ABCD. Arquivos Brasileiros de Cirurgia Digestiva (São Paulo)

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dec 2016, Volume 29 N. 4 Pages 272 - 275

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

RESUMO Introdução: O peptídeo semelhante ao glucagon-2 (GLP-2) é hormônio gastrointestinal com efeitos predominantemente tróficos sobre a mucosa intestinal. Objetivo: Avaliar criticamente a literatura atual a respeito da cirurgia bariátrica/metabólica sobre os níveis de GLP-2 e suas potenciais implicações clínicas. Métodos: Revisão narrativa realizada através de pesquisa on-line nas bases de dados Medline e LILACS. Foram selecionados seis estudos prospectivos em humanos, dois transversais em humanos e três experimentais em animais. Resultados: Existem evidências demonstrando aumento significativo nos níveis de GLP-2 após o bypass gástrico, a operação de Scopinaro e a gastrectomia vertical. Não foram observadas diferenças entre o bypass gástrico e a gastrectomia vertical em relação ao aumento do GLP-2. Não há correlação entre os níveis de GLP-2 e a ocorrência de perda de peso pós-operatória adequada ou insuficiente. Conclusão: O GLP-2 desempenha importantes papel sobre a regulação da absorção de nutrientes, permeabilidade da mucosa intestinal, controle da reabsorção óssea e regulação da saciedade. O impacto combinado destes efeitos potencialmente exerce efeito adaptativo ou compensatório importante no contexto das diferentes técnicas bariátricas.

ABSTRACT Introduction: Glucagon-like peptide-2 (GLP-2) is a gastrointestinal hormone whose effects are predominantly trophic on the intestinal mucosa. Aim: Critically evaluate the current literature on the influence of bariatric/metabolic surgery on the levels of GLP-2 and its potential clinical implications. Method s: Narrative review through online research on the databases Medline and Lilacs. There were six prospective human studies, two cross-sectional human studies, and three experimental animal studies selected. Results: There is evidence demonstrating significant increase in the levels of GLP-2 following gastric bypass, Scopinaro operation, and sleeve gastrectomy. There are no differences between gastric bypass and sleeve gastrectomy in regards to the increase in the GLP-2 levels. There is no correlation between the postoperative levels of GLP-2 and the occurrence of adequate or insufficient postoperative weight loss. Conclusion: GLP-2 plays significant roles on the regulation of nutrient absorption, permeability of gut mucosa, control of bone resorption, and regulation of satiety. The overall impact of these effects potentially exerts a significant adaptive or compensatory effect within the context of varied bariatric surgical techniques.

https://doi.org/10.1590/0102-6720201600040014 2980 downloads

Serum levels of retinol binding protein 4 in women with different levels of adiposity and glucose tolerance
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Comucci, Eleonora Beltrame

; Vasques, Ana Carolina Junqueira

; Geloneze, Bruno

; Calixto, Antonio Ramos

; Pareja, José Carlos

; Tambascia, Marcos Antonio

Arquivos Brasileiros de Endocrinologia & Metabologia

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oct 2014, Volume 58 N. 7 Pages 709 - 714

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

Objetivo A proteína carreadora do retinol 4 (RBP4) é uma adipocina responsável pelo transporte de vitamina A (retinol). Estudos associam os níveis aumentados de RBP4 com a gravidade do diabetes melito tipo 2 (DM2) e resistência à insulina (RI). O objetivo deste estudo foi investigar como esses níveis se comportam em mulheres com ampla variação do índice de massa corporal (IMC) e tolerância à glicose. Sujeitos e métodos: Estudo transversal realizado com 139 mulheres, divididas em três grupos: Grupo 1 (controles-magras; n = 45) e Grupo 2 (obesas; n = 53), com tolerância normal à glicose; Grupo 3 (obesas DM2; n = 41), denominados G1, G2 e G3. Foram avaliados parâmetros clínicos, bioquímicos, antropométricos e composição corporal. Resultados De acordo com a análise dos dados, obtivemos em G1 maiores níveis de RBP4 (104,8 ± 76,8 ng/mL) em comparação ao G2 (87,9 ± 38 ng/mL) e G3 (72,2 ± 15,6 ng/mL). Também foram encontradas correlações positivas entre RBP4 e IMC (r = 0,253), hemoglobina glicada (r = 0,378) e insulinemia de jejum (r = 0,336); em G2 com hemoglobina glicada (r = 0,489); G3 com hemoglobina glicada (r = 0,330), insulinemia de jejum (r = 0,463) e HOMA-IR (r = 0,481). Conclusões Embora a RBP4 tenha apresentado níveis menores em pacientes diabéticas e obesas, a forte correlação com o índice HOMA-IR deixa claro que, em nosso estudo, há crescente RI quando os níveis dessa proteína também são crescentes.

Objective Retinol-binding protein 4 (RBP4) is an adipokine responsible for vitamin A (retinol) transportation. Studies associated RBP4 increased levels with severity of type 2 diabetes mellitus (T2DM) and insulin resistance (IR). The study aimed to quantify RBP4 serum standards in women with a wide range of body mass index (BMI) and glucose tolerance level. Subjects and methods: Cross-sectional study was performed with 139 women divided into three groups: Group 1 (lean-control, n = 45) and Group 2 (obese, n = 53) with normal glucose tolerance and group 3 (obese with T2DM, n = 41), called G1, G2 and G3. Were assessed clinical, biochemical, anthropometric and body composition parameters. Results According to data analysis, we obtained in G1 higher RBP4 levels (104.8 ± 76.8 ng/mL) when compared to G2 (87.9 ± 38 ng/mL) and G3 (72.2 ± 15.6 ng/mL) levels. Also, were found: in G1 positive correlations of RBP4 with BMI (r = 0.253), glycated hemoglobin (r = 0.378) and fasting insulin (r = 0.336); in G2 with glycated hemoglobin (r = 0.489); in G3 with glycated hemoglobin (r = 0.330), fasting glucose (r = 0.463), HOMA-IR (r = 0.481). Conclusions Although RBP4 have shown lower levels in diabetic and obese, a strong correlation with HOMA-IR index highlights that, in our study, there is growing IR when there is an increasing in RBP4 levels.

https://doi.org/10.1590/0004-2730000002431 2462 downloads

Neck circumference as a new anthropometric indicator for prediction of insulin resistance and components of metabolic syndrome in adolescents: Brazilian Metabolic Syndrome Study
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Silva, Cleliani de Cassia da

; Zambon, Mariana Porto

; Vasques, Ana Carolina J.

; Rodrigues, Ana Maria de B.

; Camilo, Daniella Fernandes

; Antonio, Maria Ângela R. de G. M.

; Cassani, Roberta Soares L.

; Geloneze, Bruno

Revista Paulista de Pediatria

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jun 2014, Volume 32 N. 2 Pages 221 - 229

Abstract: Pt En Es | Text: Pt En Es | PDF: Pt | PDF: En | PDF: Es

OBJETIVO: Avaliar a correlação da circunferência do pescoço com resistência à insulina e com os componentes da síndrome metabólica em adolescentes com diferentes níveis de adiposidade e estadios puberais, bem como determinar a utilidade da circunferência do pescoço como um parâmetro na predição de resistência à insulina em adolescentes.MÉTODOS:Estudo transversal no qual se avaliaram 388 adolescentes de ambos os sexos, de dez a 19 anos. Os adolescentes foram submetidos à avaliação antropométrica e de composição corporal, incluindo circunferências do pescoço e da cintura, e a avaliação bioquímica. O estadio puberal foi obtido por meio de autoavaliação e a pressão arterial, pelo método auscultatório. Analisou-se a resistência à insulina pelo Homeostasis Model Assessment-Insulin Resistance. A correlação entre duas variáveis foi verificada com o coeficiente de correlação parcial ajustado para o percentual de gordura corporal e o estadio puberal. O desempenho da circunferência do pescoço para identificar resistência à insulina foi testado pela Receiver Operating Characteristic Curve.RESULTADOS: Após ajuste para o percentual de gordura corporal e estadio puberal, a circunferência do pescoço correlacionou-se com circunferência da cintura, pressão arterial, triglicérides e marcadores de resistência à insulina em ambos os sexos.CONCLUSÕES:Os resultados demonstraram que a circunferência do pescoço é uma ferramenta útil para detectar a resistência à insulina e a alteração nos indicadores de síndrome metabólica em adolescentes. A facilidade de aplicação e o baixo custo podem viabilizar sua utilização em serviços de Saúde Pública.

OBJECTIVE: To evaluate the correlation between neck circumference and insulin resistance and components of metabolic syndrome in adolescents with different adiposity levels and pubertal stages, as well as to determine the usefulness of neck circumference to predict insulin resistance in adolescents.METHODS:Cross-sectional study with 388 adolescents of both genders from ten to 19 years old. The adolescents underwent anthropometric and body composition assessment, including neck and waist circumferences, and biochemical evaluation. The pubertal stage was obtained by self-assessment, and the blood pressure, by auscultation. Insulin resistance was evaluated by the Homeostasis Model Assessment-Insulin Resistance. The correlation between two variables was evaluated by partial correlation coefficient adjusted for the percentage of body fat and pubertal stage. The performance of neck circumference to identify insulin resistance was tested by Receiver Operating Characteristic Curve.RESULTS: After the adjustment for percentage body fat and pubertal stage, neck circumference correlated with waist circumference, blood pressure, triglycerides and markers of insulin resistance in both genders.CONCLUSIONS: The results showed that the neck circumference is a useful tool for the detection of insulin resistance and changes in the indicators of metabolic syndrome in adolescents. The easiness of application and low cost of this measure may allow its use in Public Health services.

OBJETIVO:Evaluar la correlación de la circunferencia del cuello con resistencia a la insulina y con los componentes del síndrome metabólico en adolescentes con distintos niveles de adiposidad y estadios puberales, así como determinar la utilidad de la circunferencia del cuello como un parámetro en la predicción de resistencia a la insulina en adolescentes.MÉTODOS: Estudio transversal en el que se evaluó a 388 adolescentes de ambos sexos, de los 10 a los 19 años. Los adolescentes fueron sometidos a evaluación antropométrica y de composición corporal, incluyendo circunferencias del cuello y de la cintura, y la evaluación bioquímica. El estadio puberal se obtuvo mediante autoevaluación y la presión arterial, por el método de ausculta. Se evaluó la resistencia a la insulina por el Homeostasis Model Assessment-Insulin Resistence. La correlación entre dos variables fue evaluada con el coeficiente de corrrelación parcial ajustado para el porcentaje de grasa corporal y el estadio puberal. El desempeño de la circunferencia del cuello para identificar resistencia a la insulina fue evaluado por la Receiver Operating Characteristic Curve y se consideró p<0,05.RESULTADOS: Después del ajuste para el porcentaje de grasa corporal y estadio puberal, la circunferencia del cuello se correlacionó con la circunferencia de la cintura, presión arterial, triglicéridos y marcadores de resistencia a la insulina en ambos sexos.CONCLUSIONES: Los resultados demostraron que la circunferencia del cuello es una herramienta útil para detectar la resistencia a la insulina y la alteración en los indicadores de síndrome metabólico en adolescentes. La facilidad de aplicación y el bajo costo pueden hacer su uso viable en servicios de Salud Pública.

https://doi.org/10.1590/0103-0582201432210713 23282 downloads

10.

Association of insulin resistance and GLP-2 secretion in obesity: a pilot study
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Geloneze, Bruno

; Lima, Marcelo Miranda de Oliveira

; Pareja, José Carlos

; Barreto, Maria Rita Lazzarini

; Magro, Daniéla Oliveira

Arquivos Brasileiros de Endocrinologia & Metabologia

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nov 2013, Volume 57 N. 8 Pages 632 - 635

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

OBJETIVO: O objetivo deste estudo piloto foi determinar a relação entre a secreção de glugagon like peptide 2 (GLP-2) e a sensibilidade insulínica (SI) em indivíduos obesos. SUJEITOS E MÉTODOS: Vinte e quatro indivíduos obesos [IMC 40.0 ± 3.0 kg/m² (média ± desvio-padrão)] foram incluídos no estudo, sendo 9 homens, com idade de 43 ± 8 anos. Do total, 12 indivíduos tinham diabetes tipo 2, todos tratados somente com antidiabéticos orais. Os sujeitos foram submetidos ao teste de refeição padrão (MTT) para dosagens das curvas: glicose, insulina e GLP-2. A sensibilidade insulínica foi mensurada pelos HOMA-IR e OGIS, obtidos pelos valores do MTT. As correlações lineares e correlações parciais foram obtidas. RESULTADOS: Observou-se uma relação inversa entre a secreção de GLP-2 e SI: HOMA-IR correlacionou-se com GLP-2 AUC (R = 0,504; p = 0,012) e OGIS correlacionou-se com GLP-2 incremental AUC (R = -0,54; p = 0,054). A correlação persistiu controlando o IMC. CONCLUSÃO: Encontramos uma associação entre a secreção de GLP-2 e a resistência insulínica. A compreensão desses mecanismos poderá direcionar o futuro farmacológico da manipulação de incretinas no tratamento da obesidade e das desordens metabólicas.

OBJECTIVE: The objective of this pilot study was to determine whether glugagon-like peptide 2 (GLP-2) secretion relates to insulin sensitivity (IS) in obese subjects. SUBJECTS AND METHODS: Twenty four obese subjects [body mass index (BMI) 40.0 ± 3.0 kg/m² (mean ± standard deviation)] were included, nine of which were male, age 43 ± 8 years. Twelve subjects had type 2 diabetes, all treated with oral anti-diabetic agents only. The subjects were submitted to standard meal tolerance test (MTT) for dosage of the curves: glucose, insulin, and GLP-2. Insulin sensitivity was measured by HOMA-IR, and OGIS was derived from the MTT. Spearman linear correlations and partial correlations were obtained. RESULTS: There was an inverse relationship between the GLP-2 secretion and IS: HOMA-IR correlated with GLP-2 AUC (R = 0.504; p = 0.012), and OGIS correlated with GLP-2 incremental AUC (R = -0.54; p = 0.054). The correlation persisted after controlling for BMI. CONCLUSION: We found an association of GLP-2 secretion and insulin resistance (IR). The understanding of the underlying mechanisms may provide future directions in the pharmacological manipulation of incretins, and in the treatment of obesity and related metabolic disorders.

3714 downloads Cited 1 time in SciELO

11.

A chemometric model applied to fatty acid determination in blood
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Lopes, Thiago I. B.

; Rimland, Casey A.

; Nagassaki, Sabrina

; Geloneze, Bruno

; Marsaioli, Anita J.

Journal of the Brazilian Chemical Society

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oct 2013, Volume 24 N. 10 Pages 1599 - 1605

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

Mudanças no perfil de ácidos graxos têm sido associadas a vários processos patofisiológicos. Dados obtidos por cromatografia gasosa-espectrometria de massas (GC-MS) usando monitoramento seletivo de íons foram empregados para revelarem, após análise por análise de componentes principais (PCA), um conjunto relevante de íons para quantificação e caracterização de ácidos graxos. Este protocolo foi aplicado com sucesso na análise de ácidos graxos presentes em diversas frações lipídicas de sangue, permitindo a quantificação de diversos ácidos graxos e revelando seus números de insaturações. Adicionalmente, a presença de contaminantes, artefatos e co-eluições no cromatograma também foram reveladas sem análises adicionais. Por fim, ácidos graxos presentes em triacilglicerídeos, fosfolipídios e ésteres de colesterol presentes em plasma e membrana de eritrócitos foram determinados com exatidão adequada, repetibilidade e baixos limites de detecção e de quantificação.

Changes in fatty acid profiles have been associated with several pathophysiological processes. Gas chromatography-mass spectrometry (GC-MS) data monitoring of selected ions was used with principal components analysis (PCA), revealing a set of relevant ions for quantification and characterization of fatty acids. This protocol was successfully applied to the analyses of fatty acids in different human blood lipids, allowing the quantification of several fatty acids and revealing their unsaturation numbers. Moreover the presences of contaminants, artifacts and co-eluitions in the chromatogram were also revealed without any additional analyses. Thus, fatty acid constituents of triglycerides, phospholipids and esters of cholesterol present in plasma and erythrocyte membranes were accurately determined, with repeatability, low limits of determination and of quantification.

https://doi.org/10.5935/0103-5053.20130201 2749 downloads

12.

Diabetologia intervencional: uma nova abordagem para o tratamento cirúrgico do diabetes tipo 2
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Geloneze, Bruno

Arquivos Brasileiros de Endocrinologia & Metabologia

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aug 2011, Volume 55 N. 6 Pages 357 - 358

Abstract: Pt | Text: Pt | PDF: Pt

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13.

Indicadores antropométricos de resistência à insulina
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Vasques, Ana Carolina

; Rosado, Lina

; Rosado, Gilberto

; Ribeiro, Rita de Cassia

; Franceschini, Sylvia

; Geloneze, Bruno

Arquivos Brasileiros de Cardiologia

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jul 2010, Volume 95 N. 1 Pages e14 - e23

Abstract: Pt En Es | Text: Pt En Es | PDF: Pt | PDF: En | PDF: Es

Alguns estudos têm analisado a eficiência de indicadores antropométricos em predizer resistência à insulina (RI), por serem mais econômicos e acessíveis. Neste estudo, objetivou-se discutir sobre as medidas e índices antropométricos que têm sido associados à RI. Realizou-se um levantamento bibliográfico nas bases Scielo, Science Direct e Pubmed. Dentre os estudos analisados, perímetro da cintura e diâmetro abdominal sagital apresentaram melhor capacidade preditiva para RI, com resultados mais consistentes. As relações cintura/coxa, cintura/estatura, pescoço/coxa, o índice de conicidade e o índice sagital demonstraram resultados positivos, contudo mais estudos são necessários para consolidá-los como preditores de RI. Os resultados obtidos com o uso do índice de massa corporal e da relação cintura/quadril foram mais inconsistentes. Sugere-se a realização de estudos avaliando o desempenho desses indicadores em predizer RI na população brasileira, pois resultados de estudos feitos com outras populações muitas vezes não são aplicáveis à nossa, devido às diferenças étnicas resultantes da grande miscigenação no País.

Some studies have analyzed the efficacy of anthropometric indicators in predicting insulin resistance (IR), for they are more economic and accessible. In this study, the objective was to discuss the measures and anthropometric indices that have been associated with IR. A bibliographic review was done, based on Scielo, Science Direct and Pubmed. Among these studies, waist and sagittal abdominal diameter presented better predictive capacity for IR, with more consistent results. The waist-to-thigh, waist-to-size, neck-to-thigh ratios, the conicity and the sagittal index have showed positive results; nevertheless, more studies are necessary to consolidate them as predictors to IR. The obtained results, with the use of body mass index and of the waist-to-hip ratio, were inconsistent. In the Brazilian population, the realization of studies evaluating the performance of these indicators in predicting IR is suggested, since the results of the studies conducted in other populations are not always applicable to ours, due to ethnical differences resulting from the great miscegenation in the country.

Algunos estudios han analizado la eficiencia de indicadores antropométricos para predecir resistencia a la insulina (RI), por ser más económicos y accesibles. En este estudio, se buscó discutir sobre las medidas e índices antropométricos que han sido asociados a la RI. Se realizó un levantamiento bibliográfico en las bases Scielo, Science Direct y Pubmed. Entre los estudios analizados, perímetro de la cintura y diámetro abdominal sagital presentaron mejor capacidad predictiva para RI, con resultados más consistentes. Las relaciones cintura/muslo, cintura/estatura, cuello/muslo, el índice de conicidad y el índice sagital demostraron resultados positivos, con todo son necesarios más estudios para consolidarlos como predictores de RI. Los resultados obtenidos con el uso del índice de masa corporal y de la relación cintura/cadera fueron más inconsistentes. Se sugiere la realización de estudios evaluando el desempeño de esos indicadores para predecir RI en la población brasileña, pues resultados de estudios hechos con otras poblaciones muchas veces no son aplicables a la nuestra, debido a las diferencias étnicas resultantes de la gran mezcla de razas en el País.

38795 downloads Cited 2 times in SciELO

14.

Diferentes aferições do diâmetro abdominal sagital e do perímetro da cintura na predição do HOMA-IR
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Vasques, Ana Carolina Junqueira

; Rosado, Lina Enriqueta Frandsen Paez de Lima

; Rosado, Gilberto Paixão

; Ribeiro, Rita de Cassia Lanes

; Franceschini, Sylvia do Carmo Castro

; Geloneze, Bruno

; Priore, Silvia Eloiza

; Oliveira, Dirce Ribeiro de

Arquivos Brasileiros de Cardiologia

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nov 2009, Volume 93 N. 5 Pages 511 - 518

Abstract: Pt En Es | Text: Pt En Es | PDF: Pt | PDF: En | PDF: Es

FUNDAMENTO: A correlação entre aumento de gordura visceral e de resistência à insulina coloca o diâmetro abdominal sagital e o perímetro da cintura como instrumentos potenciais para a predição de resistência à insulina. OBJETIVO: Avaliar a reprodutibilidade de diferentes aferições do diâmetro abdominal sagital e do perímetro da cintura e analisar o poder discriminante dos mesmos para predizer resistência à insulina. MÉTODOS: Foram avaliados 190 homens adultos. O diâmetro abdominal sagital (menor cintura, maior diâmetro abdominal, nível umbilical e ponto médio entre as cristas ilíacas) e o perímetro da cintura (nível umbilical, menor cintura, imediatamente acima da crista ilíaca e ponto médio entre a crista ilíaca e a última costela) foram aferidos em quatro locais diferentes. A resistência à insulina foi avaliada pelo índice HOMA-IR. RESULTADOS: Todas as medidas apresentaram correlação intraclasse de 0,986-0,999. Tanto o diâmetro abdominal sagital aferido na menor cintura (r=0,482 e AUC=0,739±0,049) como o perímetro da cintura aferido no ponto médio entre a última costela e a crista ilíaca (r=0,464 e AUC=0,746±0,05) apresentaram maiores correlações com o HOMA-IR, bem como um melhor poder discriminante para o HOMA-IR segundo a análise ROC (p<0,001). CONCLUSÃO: O diâmetro abdominal sagital e o perímetro da cintura mostraram-se altamente reprodutíveis. O diâmetro abdominal sagital (menor cintura) e o perímetro da cintura (ponto médio crista ilíaca e última costela) apresentaram melhor desempenho em predizer o HOMA-IR. Investigações em outros grupos da população brasileira devem ser realizadas para viabilizar a utilização desses indicadores de resistência à insulina na população como um todo de forma padronizada.

BACKGROUND: The correlation between the increase in visceral fat and insulin resistance makes the sagittal abdominal diameter and the waist perimeter as potential tools for the prediction of insulin resistance. OBJECTIVE: To assess the reproducibility of different measurements of the sagittal abdominal diameter and the waist perimeter and analyze the discriminating power of the measurements when predicting insulin resistance. METHODS: A total of 190 adult males were studied. The sagittal abdominal diameter (smallest girth, larger abdominal diameter, umbilical level and midpoint between the iliac crests) and the waist perimeter (umbilical level, smallest girth, immediately above the iliac crest and midpoint between the iliac crest and the last rib) were measured at four different sites. Insulin resistance was assessed by the homeostasis model of assessment-insulin resistance (HOMA-IR) index. RESULTS: All measurements presented an intraclass correlation of 0.986-0.999. The sagittal abdominal diameter measured at the smallest girth (r=0.482 and AUC=0.739±0.049) and the waist perimeter measured at the midpoint between the last rib and the iliac crest (r=0.464 and AUC=0.746±0.05) presented the highest correlations with the HOMA-IR and the best discriminating power for HOMA-IR according to the ROC analysis (p<0.001). CONCLUSION: The sagittal abdominal diameter and waist perimeter showed to be highly reproducible and the sagittal abdominal diameter (smallest girth) and waist perimeter (midpoint between the iliac crest and the last rib) presented the best performance when predicting HOMA-IR. Further studies in other groups of the Brazilian population must be carried out to allow the use of these indicators of insulin resistance in the population as a whole, following standardized procedures.

FUNDAMENTO: La correlación entre aumento de la grasa visceral y de la resistencia a la insulina pone el diámetro abdominal sagital y el perímetro de la cintura como los instrumentos potenciales para la predicción de resistencia a la insulina. OBJETIVO: Evaluar la reproductibilidad de distintas mediciones del diámetro abdominal sagital y del perímetro de la cintura y analizar el poder discriminante de las mismas para predecir resistencia a la insulina. MÉTODOS: Se evaluaron a 190 varones adultos. El diámetro abdominal sagital (menor cintura, mayor diámetro abdominal, nivel umbilical y punto promedio entre las crestas ilíacas) y el perímetro de la cintura (nivel umbilical, menor cintura, inmediatamente superior a la cresta ilíaca y punto promedio entre la cresta ilíaca y la última costilla) se calcularon en cuatro locales diferentes. La resistencia a la insulina se evaluó por el índice HOMA-IR. RESULTADOS: Todas las mediciones presentaron correlación intraclase de 0,986-0,999. Tanto el diámetro abdominal sagital calculado en la menor cintura (r=0,482 y AUC=0,739±0,049) como el perímetro de la cintura calculado en el punto promedio entre la última costilla y la cresta ilíaca (r=0,464 e AUC=0,746±0,05) presentaron mayores correlaciones con el HOMA-IR, así como un mejor poder discriminante para el HOMA-IR según el análisis ROC (p<0,001). CONCLUSIONES: El diámetro abdominal sagital y el perímetro de la cintura se evidenciaron altamente reproductibles. El diámetro abdominal sagital (menor cintura) y el perímetro de la cintura (punto promedio la cresta ilíaca y última costilla) presentaron mejor desempeño en predecir el HOMA-IR. Investigaciones en otros grupos de la población brasileña se deben realizar para viabilizar la utilización de estos indicadores de resistencia a la insulina en la población como un todo de forma estandarizada.

15957 downloads

15.

Overcoming metabolic syndrome in severe obesity: adiponectin as a marker of insulin sensitivity and HDL-cholesterol improvements after gastric bypass
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Geloneze, Bruno

; Pereira, Juliano Alves

; Pareja, José Carlos

; Lima, Marcelo Miranda de Oliveira

; Lazarin, Mary Aparecida Carvalho Tavares

; Souza, Iara Chaves Pereira de

; Tambascia, Marcos Antonio

; Chaim, Elinton

; Muscelli, Elza

Arquivos Brasileiros de Endocrinologia & Metabologia

Journal Metrics
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mar 2009, Volume 53 N. 2 Pages 293 - 300

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

OBJETIVO: Identificar a relação entre adiponectina e parâmetros metabólicos em mulheres obesas mórbidas durante o emagrecimento por bypass gástrico. MÉTODOS: Dezenove magras (CT - IMC: 21,2 ± 0,3 kg/m²), 14 com sobrepeso/obesidade classe II (OB/OW - IMC: 29,7 ± 0,7 kg/m²) e oito obesas classe III (OBIII - IMC:56,4 ± 3,6 kg/m²) foram avaliadas pelo clamp euglicêmico-hiperinsulinêmico, adiponectina e lípides. OBIII submeteram-se aos mesmos testes no quinto e décimo-sexto mês pós-operatório. RESULTADOS: comparados a CT, os grupos obesos tiveram menor adiponectinemia (OB/OW: 9,4 ± 0,9, OBIII: 7,1 ± 1,3 versus 12,2 ± 0,9 ng/dL; p < 0,01), menor HDL-colesterol (OB/OW: 1,05 ± 0,05, OBIII: 0,88 ± 0,04 versus 1,22 ± 0,07 mmol/L; p < 0,01) e resistência insulínica - RI (captação de glicose, M - OB/OW:43,6 ± 2,7, OBIII:32,4 ± 3,2 versus 20,0 ± 1,8 umol/kgFFM.min; p < 0,001). Analisando todos os voluntários: adiponectina correlacionou-se negativamente com IMC, circunferência da cintura e positivamente ao M-clamp e HDL-colesterol (p < 0,01). No emagrecimento, houve melhora da RI (Estudo III:36,1 ± 3,9 umol/kgFFM.min, p < 0,0001), adiponectina (11,8 ± 1,4 ng/dL, p = 0,006) e HDL-colesterol (1,10 ± 0,04 mmol/L, p = 0,007). Aumentos do HDL-colesterol foram significativa e independentemente relacionados às variações da adiponectina e IMC (r² = 0,86; p < 0,0002). CONCLUSÕES: A melhora da RI e adiponectina no emagrecimento induzido por bypass gástrico sugerem um importante papel da adiponectina na regulação do HDL-colesterol.

OBJECTIVE: To assess the relationship between adiponectin and metabolic parameters in severely obese women during surgical-induced weight loss. METHODS: Nineteen lean (CT - BMI:21.2 ± 0.3 kg.m²), 14 overweight/class II obese (OB/OW - BMI: 29.7 ± 0.7 kg/m²) and 8 morbidly obese (OBIII - BMI: 56.4 ± 3.6 kg/m²) were evaluated by hyperinsulinemic-euglycemic clamp, adiponectin, and lipids. OBIII were evaluated at 5th and 16th month post-operatively. RESULTS: Compared to lean, obese groups had lower adiponectin (OB/OW: 9.4 ± 0.9, OBIII: 7.1 ± 1.3 versus 12.2 ± 0.9 ng/dL; p < 0.01), lower HDL-cholesterol (OB/OW:1.05 ± 0.05, OBIII: 0.88 ± 0.04 versus 1.22 ± 0.07 mmol/L; p < 0.01) and insulin resistance-IR (glucose uptake, M-value - OB/OW: 43.6 ± 2.7, OBIII: 32.4 ± 3.2 versus 20.0 ± 1.8 umol/kgFFM.min; p < 0.001). Considering all subjects, adiponectin levels were inversely correlated to BMI and waist circumference, and directly to M-value and HDL-cholesterol (p < 0.01). During weight loss, improvements in IR (Study III: 36.1 ± 3.9 umol/kg/FFM.min, p < 0.0001), adiponectin (11.8 ± 1.4 ng/dL, p = 0.006) and HDL-cholesterol were observed (1.10 ± 0.04 mmol/L, p = 0.007). Moreover, HDL-cholesterol improvement was significantly and independently related to variations of adiponectin and BMI (r² = 0.86; p < 0.0002). CONCLUSIONS: The improvements of IR and adiponectin were related to surgical-induced weight loss, suggesting an important role of adiponectin in HDL-cholesterol regulation.

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