title: Relationship of the nutritional status of vitamin A and the regression of hepatic steatosis after Roux-en-Y gastric bypass surgery for treatment of class III obesity.
abstract: BACKGROUND
  Vitamin A participates in several essentials functions in the human body and their serum concentrations may be decreased in non-transmissible diseases.
  
  
  OBJECTIVE
  To assess the relationship of the nutritional status of Vitamin A through the serum concentrations of retinol and beta carotene, with regression of hepatic steatosis in individuals who undergone Roux-en-Y gastric bypass surgery for treatment of class III obesity.
  
  
  METHODS
  Were included 30 individuals, male and female, submitted to Roux-en-Y gastric bypass for treatment of class III obesity, who were diagnosed through an abdominal ultrasonography as presenting hepatic steatosis. From the result of an ultrasonography screened six months after the surgical procedure those subjects were divided into two groups: group 1 - patients with steatosis detected in the ultrasonography (16 subjects) and group 2 - patients without steatosis detected in the ultrasonography (14 subjects). Before and six months after the surgery, were carried out anthropometrical analyses and biochemical exams (basal insulin, glicemy, Homeostasis Model Assessment Index (HOMA IR), cholesterol, HDL, LDL, triglycerides, AST, ALT, Gamma-GT, albumin, total bilirubin, retinol, and beta carotene.
  
  
  RESULTS
  The individuals presented an average weight loss of 35.05 + 10.47 (p<0.01) and a decrease in the Body Mass Index (BMI) of 11.6 + 4.99 Kg/m² (p<0.01). After six months, all the biochemical exams presented a significant decrease in their basal concentrations (p<0.05). In the post-operative period the group 2 (without steatosis) presented concentrations significantly lower (p<0.05) in the following variables: weight, BMI, AST, ALT, Gamma-GT, HOMA IR, basal insulin. The albumin serum concentrations presented close average values, with no significant difference in the two periods evaluated. In the assessment of retinol and beta carotene, higher serum concentrations and a small decrease in relation to the concentrations of the pre-operative period in the group without steatosis were observed, however, no statistical difference was found.
  
  
  CONCLUSIONS
  An adequate nutritional status of vitamin A might contribute in the improvement of the hepatic esteatosis after Roux-en-Y gastric bypass for class III obesity treatment.
authors: Instituto de Nutrição Josué de Castro, Universidade Federal do Rio de Janeiro, RJ, Brazil.
authors: Luiz Gustavo de
authors: LG
authors: Oliveira e Silva
authors: José Eduardo Ferreira
authors: JE
authors: Manso
authors: Rejane Andréa Ramalho Nunes da
authors: RA
authors: Silva
authors: Silvia Elaine
authors: SE
authors: Pereira
authors: Carlos José
authors: CJ
authors: Saboya Sobrinho
authors: Cesar Wakoff
authors: CW
authors: Rangel
mesh_terms: D000328:Adult; D005234:Fatty Liver / Q000097:blood* / Q000209:etiology; D005260:Female; D015390:Gastric Bypass; D006801:Humans; D008297:Male; D008875:Middle Aged; D009752:Nutritional Status; D009767:Obesity, Morbid / Q000097:blood* / Q000150:complications / Q000601:surgery*; D012074:Remission Induction; D014801:Vitamin A / Q000097:blood*; D055815:Young Adult
chemical_list: D014801:Vitamin A