Protein and amino acid status before and after bariatric surgery: a 12-month follow-up study
| Autor: | Carla Barbosa Nonino, Julio Sérgio Marchini, José Ernesto dos Santos, Carolina Ferreira Nicoletti, Márcia Varella Morandi Junqueira-Franco, Wilson Salgado Júnior |
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| Rok vydání: | 2012 |
| Předmět: |
Adult
medicine.medical_specialty Time Factors Arginine Gastric Bypass Bariatric Surgery Nutritional Status Phenylalanine Cohort Studies chemistry.chemical_compound Weight loss Valine Preoperative Care Medicine Humans FERRO (DEFICIÊNCIA) Longitudinal Studies Amino Acids chemistry.chemical_classification Postoperative Care Methionine business.industry Albumin Nutritional Requirements Proteins Middle Aged Surgery Amino acid Obesity Morbid chemistry Female Isoleucine medicine.symptom business Energy Intake Follow-Up Studies |
| Zdroj: | Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual) Universidade de São Paulo (USP) instacron:USP |
| ISSN: | 1878-7533 |
| Popis: | Background Patients with obesity submitted to bariatric surgery present altered ingestion of macronutrient and micronutrient levels and nutrients deficiency. The objective of this study was to evaluate the protein and amino acid nutritional status of obese adults before and after bariatric surgery, with emphasis on plasma free amino acids. Methods Thirty obese women were submitted to Roux-en-Y gastric shunt (bariatric surgery). Food and protein intake, anthropometric and bioimpedance data (body composition analysis), and serum total protein, albumin, and plasma amino acids levels were collected before the surgery (preoperative) and 3, 6, and 12 months after the surgical procedure. Results The mean protein intake was 47±2 g/day. The total weight loss during the study period was 39±8 kg; the fat-free mass decreased 7±5 kg. The amino acid profile showed increased concentrations of most amino acids 3 months after surgery; at 6 months, glutamic acid, serine, arginine, alanine, methionine, valine, phenylalanine, isoleucine, and tyrosine concentrations decreased. The total protein and albumin concentrations dropped along the 12-month follow-up. Conclusion The amino acid profile changes after RYGB are evidence that total protein and albumin levels may not be good indicators of protein profile after the surgery. |
| Databáze: | OpenAIRE |
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