Relationship between Body Adiposity Indices and Reversal of Metabolically Unhealthy Obesity 6 Months after Roux-en-Y Gastric Bypass

The factors determining the reversal of metabolically unhealthy obesity (MUO) to metabolically healthy obesity (MHO) after Roux-en-Y gastric bypass (RYGB) are not completely elucidated. The present study aims to evaluate body adiposity and distribution, through different indices, according to metabo...

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Main Authors: Mariana Luna, Silvia Pereira, Carlos Saboya, Andrea Ramalho
Format: Article
Language:English
Published: MDPI AG 2024-09-01
Series:Metabolites
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Online Access:https://www.mdpi.com/2218-1989/14/9/502
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author Mariana Luna
Silvia Pereira
Carlos Saboya
Andrea Ramalho
author_facet Mariana Luna
Silvia Pereira
Carlos Saboya
Andrea Ramalho
author_sort Mariana Luna
collection DOAJ
description The factors determining the reversal of metabolically unhealthy obesity (MUO) to metabolically healthy obesity (MHO) after Roux-en-Y gastric bypass (RYGB) are not completely elucidated. The present study aims to evaluate body adiposity and distribution, through different indices, according to metabolic phenotypes before and 6 months after RYGB, and the relationship between these indices and transition from MUO to MHO. This study reports a prospective longitudinal study on adults with obesity who were evaluated before (T0) and 6 months (T1) after RYGB. Bodyweight, height, waist circumference (WC), BMI, waist-to-height ratio (WHR), total cholesterol (TC), HDL-c, LDL-c, triglycerides, insulin, glucose, HbA1c and HOMA-IR were evaluated. The visceral adiposity index (VAI), the conicity index (CI), the lipid accumulation product (LAP), CUN-BAE and body shape index (ABSI) were calculated. MUO was classified based on insulin resistance. MUO at T0 with transition to MHO at T1 formed the MHO-t group MHO and MUO at both T0 and T1 formed the MHO-m and MUO-m groups, respectively. At T0, 37.3% of the 62 individuals were classified as MHO and 62.7% as MUO. Individuals in the MUO-T0 group had higher blood glucose, HbA1c, HOMA-IR, insulin, TC and LDL-c compared to those in the MHO-T0 group. Both groups showed significant improvement in biochemical and body variables at T1. After RYGB, 89.2% of MUO-T0 became MHO (MHO-t). The MUO-m group presented higher HOMA-IR, insulin and VAI, compared to the MHO-m and MHO-t groups. CI and ABSI at T0 correlated with HOMA-IR at T1 in the MHO-t and MHO-m groups. CI and ABSI, indicators of visceral fat, are promising for predicting post-RYGB metabolic improvement. Additional studies are needed to confirm the sustainability of MUO reversion and its relationship with these indices.
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spelling doaj-art-33af4deb521b4a8bb82bce6ef5b04d1e2025-08-20T01:55:41ZengMDPI AGMetabolites2218-19892024-09-0114950210.3390/metabo14090502Relationship between Body Adiposity Indices and Reversal of Metabolically Unhealthy Obesity 6 Months after Roux-en-Y Gastric BypassMariana Luna0Silvia Pereira1Carlos Saboya2Andrea Ramalho3Postgraduate Program in Internal Medicine, Medical School, Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro 21941-971, BrazilMicronutrients Research Center (NPqM), Institute of Nutrition, Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro 21941-916, BrazilMicronutrients Research Center (NPqM), Institute of Nutrition, Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro 21941-916, BrazilMicronutrients Research Center (NPqM), Institute of Nutrition, Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro 21941-916, BrazilThe factors determining the reversal of metabolically unhealthy obesity (MUO) to metabolically healthy obesity (MHO) after Roux-en-Y gastric bypass (RYGB) are not completely elucidated. The present study aims to evaluate body adiposity and distribution, through different indices, according to metabolic phenotypes before and 6 months after RYGB, and the relationship between these indices and transition from MUO to MHO. This study reports a prospective longitudinal study on adults with obesity who were evaluated before (T0) and 6 months (T1) after RYGB. Bodyweight, height, waist circumference (WC), BMI, waist-to-height ratio (WHR), total cholesterol (TC), HDL-c, LDL-c, triglycerides, insulin, glucose, HbA1c and HOMA-IR were evaluated. The visceral adiposity index (VAI), the conicity index (CI), the lipid accumulation product (LAP), CUN-BAE and body shape index (ABSI) were calculated. MUO was classified based on insulin resistance. MUO at T0 with transition to MHO at T1 formed the MHO-t group MHO and MUO at both T0 and T1 formed the MHO-m and MUO-m groups, respectively. At T0, 37.3% of the 62 individuals were classified as MHO and 62.7% as MUO. Individuals in the MUO-T0 group had higher blood glucose, HbA1c, HOMA-IR, insulin, TC and LDL-c compared to those in the MHO-T0 group. Both groups showed significant improvement in biochemical and body variables at T1. After RYGB, 89.2% of MUO-T0 became MHO (MHO-t). The MUO-m group presented higher HOMA-IR, insulin and VAI, compared to the MHO-m and MHO-t groups. CI and ABSI at T0 correlated with HOMA-IR at T1 in the MHO-t and MHO-m groups. CI and ABSI, indicators of visceral fat, are promising for predicting post-RYGB metabolic improvement. Additional studies are needed to confirm the sustainability of MUO reversion and its relationship with these indices.https://www.mdpi.com/2218-1989/14/9/502metabolically healthy obesitymetabolically unhealthy obesityinsulin resistancevisceral adiposityroux-en-Y gastric bypassbariatric surgery
spellingShingle Mariana Luna
Silvia Pereira
Carlos Saboya
Andrea Ramalho
Relationship between Body Adiposity Indices and Reversal of Metabolically Unhealthy Obesity 6 Months after Roux-en-Y Gastric Bypass
Metabolites
metabolically healthy obesity
metabolically unhealthy obesity
insulin resistance
visceral adiposity
roux-en-Y gastric bypass
bariatric surgery
title Relationship between Body Adiposity Indices and Reversal of Metabolically Unhealthy Obesity 6 Months after Roux-en-Y Gastric Bypass
title_full Relationship between Body Adiposity Indices and Reversal of Metabolically Unhealthy Obesity 6 Months after Roux-en-Y Gastric Bypass
title_fullStr Relationship between Body Adiposity Indices and Reversal of Metabolically Unhealthy Obesity 6 Months after Roux-en-Y Gastric Bypass
title_full_unstemmed Relationship between Body Adiposity Indices and Reversal of Metabolically Unhealthy Obesity 6 Months after Roux-en-Y Gastric Bypass
title_short Relationship between Body Adiposity Indices and Reversal of Metabolically Unhealthy Obesity 6 Months after Roux-en-Y Gastric Bypass
title_sort relationship between body adiposity indices and reversal of metabolically unhealthy obesity 6 months after roux en y gastric bypass
topic metabolically healthy obesity
metabolically unhealthy obesity
insulin resistance
visceral adiposity
roux-en-Y gastric bypass
bariatric surgery
url https://www.mdpi.com/2218-1989/14/9/502
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