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Abdelwahab OA, Abdelaziz A, Diab S, Khazragy A, Elboraay T, Fayad T, Diab RA, Negida A. Efficacy of different routes of vitamin B12 supplementation for the treatment of patients with vitamin B12 deficiency: A systematic review and network meta-analysis. Ir J Med Sci 2024; 193:1621-1639. [PMID: 38231320 DOI: 10.1007/s11845-023-03602-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2023] [Accepted: 12/25/2023] [Indexed: 01/18/2024]
Abstract
BACKGROUND This systematic review and network meta-analysis aimed to evaluate the three different administration routes of vitamin B12: oral, intramuscular (IM), and sublingual (SL) routes. METHODS We searched four electronic databases (PubMed, Scopus, Web of Science, and Cochrane CENTRAL Register of Controlled Trials). We included only comparative studies. We performed a frequentist network meta-analysis to measure network estimates for the relative outcomes. Moreover, we conducted a pairwise meta-analysis using a random effect model to obtain direct estimates for outcomes. All outcomes were continuous, and the relative treatment effects were pooled as mean difference (MD) with 95% confidence intervals. RESULTS Thirteen studies were included in the meta-analysis, with a total of 4275 patients. Regarding increasing vitamin B12 levels, the IM route ranked first, followed by the SL route (MD = 94.09 and 43.31 pg/mL, respectively) compared to the oral route. However, these differences did not reach statistical significance owing to the limited number of studies. Regarding the hemoglobin level, the pooled effect sizes showed no difference between all routes of administration that could reach statistical significance. However, the top two ranked administration routes were the oral route (78.3) and the IM route (49.6). CONCLUSION All IM, oral, and SL routes of administration of vitamin B12 can effectively increase the level of vitamin B12 without significant differences between them, as thought previously. However, the IM route was the top-ranked statistically but without clinical significance. We found no significant difference among studied administrated routes in all other CBC parameters and homocysteine levels.
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Affiliation(s)
- Omar Ahmed Abdelwahab
- Medical Research Group of Egypt, Cairo, Egypt.
- Faculty of Medicine, Al-Azhar University, Cairo, Egypt.
| | - Ahmed Abdelaziz
- Medical Research Group of Egypt, Cairo, Egypt
- Faculty of Medicine, Al-Azhar University, Cairo, Egypt
| | - Sherein Diab
- Medical Research Group of Egypt, Cairo, Egypt
- Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Ali Khazragy
- Medical Research Group of Egypt, Cairo, Egypt
- Faculty of Medicine, Alexandria University, Alexandria, Egypt
| | - Toka Elboraay
- Medical Research Group of Egypt, Cairo, Egypt
- Faculty of Medicine, Zagazig University, Zagazig, Egypt
| | - Taha Fayad
- Medical Research Group of Egypt, Cairo, Egypt
- Faculty of Oral and Dental Medicine, Sinai University, Sinai, Egypt
| | - Rehab Adel Diab
- Medical Research Group of Egypt, Cairo, Egypt
- Faculty of Medicine, Al-Azhar University for Girls, Cairo, Egypt
| | - Ahmed Negida
- Medical Research Group of Egypt, Cairo, Egypt
- Faculty of Medicine, Zagazig University, Zagazig, Egypt
- School of Pharmacy and Biomedical Sciences, University of Portsmouth, Portsmount, UK
- Department of Global Health and Social Medicine, Harvard Medical School, Boston, MA, USA
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Kramarz C, Murphy E, Reilly MM, Rossor AM. Nutritional peripheral neuropathies. J Neurol Neurosurg Psychiatry 2023; 95:61-72. [PMID: 37536924 DOI: 10.1136/jnnp-2022-329849] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Accepted: 06/30/2023] [Indexed: 08/05/2023]
Abstract
Nutritional peripheral neuropathies are a global problem, heavily influenced by geopolitical, cultural and socioeconomic factors. Peripheral neuropathy occurs most frequently secondary to B-vitamin deficiencies, which is suspected to increase in years to come due to the popularity of vegan and vegetarian diets and increased use of bariatric surgery.This review will focus on the common B-vitamins for which a causal link to peripheral neuropathy is more established (vitamins B1, B2, B6, B9 and B12). We will review the historical human and animal data on which much of the clinical descriptions of vitamin deficiencies are based and summarise current available tools for accurately diagnosing a nutritional deficiency. We will also review recently described genetic diseases due to pathogenic variants in genes involved in B-vitamin metabolism that have helped to inform the phenotypes and potential causality of certain B-vitamins in peripheral neuropathy (B2 and B9).Endemic outbreaks of peripheral neuropathy over the last two centuries have been linked to food shortages and nutritional deficiency. These include outbreaks in Jamaican sugar plantation workers in the nineteenth century (Strachan's syndrome), World War two prisoners of war, Cuban endemic neuropathy and also Tanzanian endemic optic neuropathy, which remains a significant public health burden today. An improved understanding of lack of which vitamins cause peripheral neuropathy and how to identify specific deficiencies may lead to prevention of significant and irreversible disability in vulnerable populations.
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Affiliation(s)
- Caroline Kramarz
- Department of Neuromuscular Diseases, Queen Square UCL Institute of Neurology and National Hospital for Neurology and Neurosurgery, London, UK
| | - Elaine Murphy
- Charles Dent Metabolic Unit, The National Hospital for Neurology and Neurosurgery, London, UK
| | - Mary M Reilly
- Department of Neuromuscular Diseases, Queen Square UCL Institute of Neurology and National Hospital for Neurology and Neurosurgery, London, UK
| | - Alexander M Rossor
- Department of Neuromuscular Diseases, Queen Square UCL Institute of Neurology and National Hospital for Neurology and Neurosurgery, London, UK
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Zheng J, Wu F, Wang F, Cheng J, Zou H, Li Y, Du J, Kan J. Biomarkers of Micronutrients and Phytonutrients and Their Application in Epidemiological Studies. Nutrients 2023; 15:nu15040970. [PMID: 36839326 PMCID: PMC9959711 DOI: 10.3390/nu15040970] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Revised: 01/21/2023] [Accepted: 02/08/2023] [Indexed: 02/17/2023] Open
Abstract
Nutritional biomarkers can be used as important indicators of nutritional status and play crucial roles in the prevention as well as prognosis optimization of various metabolism-related diseases. Measuring dietary with the deployment of biomarker assessments provides quantitative nutritional information that can better predict the health outcomes. With the increased availability of nutritional biomarkers and the development of assessment tools, the specificity and sensitivity of nutritional biomarkers have been greatly improved. This enables efficient disease surveillance in nutrition research. A wide range of biomarkers have been used in different types of studies, including clinical trials, observational studies, and qualitative studies, to reflect the relationship between diet and health. Through a comprehensive literature search, we reviewed the well-established nutritional biomarkers of vitamins, minerals, and phytonutrients, and their association with epidemiological studies, to better understand the role of nutrition in health and disease.
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Affiliation(s)
- Jianheng Zheng
- Nutrilite Health Institute, 720 Cailun Road, Shanghai 201203, China
| | - Feng Wu
- Sequanta Technologies Co., Ltd., 240 Hedan Road, Shanghai 200131, China
| | - Feijie Wang
- Nutrilite Health Institute, 720 Cailun Road, Shanghai 201203, China
| | - Junrui Cheng
- Department of Molecular and Structural Biochemistry, North Carolina State University, Raleigh, NC 27695, USA
| | - Hong Zou
- Sequanta Technologies Co., Ltd., 240 Hedan Road, Shanghai 200131, China
| | - Yuan Li
- Sequanta Technologies Co., Ltd., 240 Hedan Road, Shanghai 200131, China
| | - Jun Du
- Nutrilite Health Institute, 720 Cailun Road, Shanghai 201203, China
| | - Juntao Kan
- Nutrilite Health Institute, 720 Cailun Road, Shanghai 201203, China
- Correspondence: ; Tel.: +86-21-2305-6982
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Berardi G, Vitiello A, Abu-Abeid A, Schiavone V, Franzese A, Velotti N, Musella M. Micronutrients Deficiencies in Candidates of Bariatric Surgery: Results from a Single Institution over a 1-Year Period. Obes Surg 2023; 33:212-218. [PMID: 36331725 PMCID: PMC9834098 DOI: 10.1007/s11695-022-06355-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Revised: 10/19/2022] [Accepted: 10/25/2022] [Indexed: 11/06/2022]
Abstract
BACKGROUND Micronutrient deficiencies represent a common condition after bariatric surgery (BS). The prevalence of these nutritional disorders before BS is still debated. The aim of our study was to retrospectively evaluate the prevalence of micronutrient deficiencies in candidates for BS. METHODS A prospectively maintained database of our institution was searched to find all patients who underwent surgery between January and December 2021. The following data were collected: age, gender, body mass index (BMI), obesity-associated diseases, and preoperative serum levels of vitamin B12, folate, and vitamin D. RESULTS A total of 174 patients were included in our study. Mean age and BMI were 39.2 ± 11.4 years and 44.3 ± 7.1 kg/m2, respectively. One hundred and thirty-nine patients (79.9%) had at least one preoperative micronutrient disorder, with vitamin D deficiency being the most common (116, 66.7%), followed by a deficit of folate (76, 43.7%) and vitamin B12 (10, 5.7%). Forty-seven (27%) individuals had insufficient levels of vitamin D. Comparison of deficiencies between sexes showed that vitamin B12 < 20 ng/ml was significantly more frequent in women (p = 0.03). DLP showed a mild significant effect on folate levels (p = 0.01), while the association of HNT and T2DM had a mild significant effect on vitamin B12 (p = 0.02). CONCLUSIONS Preoperative micronutrient deficiencies were frequently found in candidates for BS. Approximately 90% of patients had deficient or insufficient serum levels of vitamin D preoperatively. Almost half of the patients had a preoperative deficit of folate, and vitamin B12 deficiency was significantly more frequent in the female population. It is mandatory to screen all patients undergoing BS for vitamin deficiencies before surgery.
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Affiliation(s)
- Giovanna Berardi
- Advanced Biomedical Sciences Department, Naples “Federico II” University, AOU “Federico II”—via S.Pansini, 80131 Naples, Italy
| | - Antonio Vitiello
- Advanced Biomedical Sciences Department, Naples “Federico II” University, AOU “Federico II”—via S.Pansini, 80131 Naples, Italy
| | - Adam Abu-Abeid
- Division of General Surgery, Affiliated to Sackler Faculty of Medicine, Tel Aviv Sourasky Medical Center, Tel Aviv University, 6 Weizman Street, 64230906 Tel Aviv, Israel
| | - Vincenzo Schiavone
- Advanced Biomedical Sciences Department, Naples “Federico II” University, AOU “Federico II”—via S.Pansini, 80131 Naples, Italy
| | - Antonio Franzese
- Advanced Biomedical Sciences Department, Naples “Federico II” University, AOU “Federico II”—via S.Pansini, 80131 Naples, Italy
| | - Nunzio Velotti
- Advanced Biomedical Sciences Department, Naples “Federico II” University, AOU “Federico II”—via S.Pansini, 80131 Naples, Italy
| | - Mario Musella
- Advanced Biomedical Sciences Department, Naples “Federico II” University, AOU “Federico II”—via S.Pansini, 80131 Naples, Italy
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Chen W, Si Z, Bi Y, Yang B. An unusual case of subacute combined degeneration due to nitrous oxide abuse, which relapsed after bariatric surgery: A case report. Medicine (Baltimore) 2022; 101:e30442. [PMID: 36107547 PMCID: PMC9439783 DOI: 10.1097/md.0000000000030442] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
RATIONALE Several studies have reported subacute combined degeneration (SCD) induced by nitrous oxide (N2O) abuse. However, few studies have reported that N2O-induced SCD recurred because of sleeve gastrectomy after neurological symptoms improved. PATIENT CONCERNS We report the case of an 18-year-old woman who developed paresthesia, weakness in 4 limbs, and an unstable gait after frequent, excessive N2O inhalation. DIAGNOSIS The patient was diagnosed as having SCD. INTERVENTIONS AND OUTCOMES Nineteen days after intravenous mecobalamin and supplementation with other kinds of vitamin B, her weakness and paresthesia resolved. However, 7 months after discharge, the patient experienced recurrence following sleeve gastrectomy. Blood biochemistry revealed low vitamin B12 levels. After a 22-day treatment, similar to the first hospitalization, her residual numbness and unsteady gait improved. LESSONS This case highlights that patients, especially those at high risk of vitamin B12 deficiency, undergoing sleeve gastrectomy require careful nutritional follow-up and routine monitoring of micronutrients such as vitamin B12 and homocysteine. Continuous vigilance is essential for patients with common and rare neurological complications.
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Affiliation(s)
- Wei Chen
- Department of Gastroenterology, Shuguang Hospital, Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Zhihua Si
- Department of Neurology, the First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, Shandong, China
| | - Yanping Bi
- Department of Emergency Medicine, First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, PR China
| | - Bing Yang
- Department of Neurology, the First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, Shandong, China
- Shandong Institute of Neuroimmunology, Jinan, Shandong, China
- Shandong Provincial Key Laboratory of Rheumatic Disease and Translational Medicine, Jinan, Shandong, China
- *Correspondence: Bing Yang, Department of Neurology, The First Affiliated Hospital of Shandong First Medical University, No.16766, Jingshi Road, Jinan, Shandong, 250014, China (e-mail: )
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Georgiou K, Belev NA, Koutouratsas T, Katifelis H, Gazouli M. Gut microbiome: Linking together obesity, bariatric surgery and associated clinical outcomes under a single focus. World J Gastrointest Pathophysiol 2022; 13:59-72. [PMID: 35720165 PMCID: PMC9157685 DOI: 10.4291/wjgp.v13.i3.59] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Revised: 12/21/2021] [Accepted: 03/27/2022] [Indexed: 02/06/2023] Open
Abstract
Obesity is increasingly prevalent in the post-industrial era, with increased mortality rates. The gut microbiota has a central role in immunological, nutritional and metabolism mediated functions, and due to its multiplexity, it is considered an independent organ. Modern high-throughput sequencing techniques have allowed phylogenetic exploration and quantitative analyses of gut microbiome and improved our current understanding of the gut microbiota in health and disease. Its role in obesity and its changes following bariatric surgery have been highlighted in several studies. According to current literature, obesity is linked to a particular microbiota profile that grants the host an augmented potential for calorie release, while limited diversity of gut microbiome has also been observed. Moreover, bariatric surgery procedures represent effective interventions for sustained weight loss and restore a healthier microbiota, contributing to the observed fat mass reduction and lean mass increase. However, newer evidence has shown that gut microbiota is only partially recovered following bariatric surgery. Moreover, several targets including FGF15/19 (a gut-derived peptide), could be responsible for the favorable metabolic changes of bariatric surgery. More randomized controlled trials and larger prospective studies that include well-defined cohorts are required to better identify associations between gut microbiota, obesity, and bariatric surgery.
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Affiliation(s)
- Konstantinos Georgiou
- The First Propaedeutic Surgical Unit, Hippocrateion Athens General Hospital, Medical School, National and Kapodistrian University of Athens, Athens 11527, Greece
| | - Nikolay A Belev
- Medical Simulation Training Center, Research Institute of Medical University of Plovdiv, and UMPHAT “Eurohospital”, Medical University of Plovdiv, Plovdiv 4002, Bulgaria
| | - Tilemachos Koutouratsas
- Basic Medical Sciences, Medical School, National and Kapodistrian University of Athens, Athens 11527, Greece
| | - Hector Katifelis
- Basic Medical Sciences, Medical School, National and Kapodistrian University of Athens, Athens 11527, Greece
| | - Maria Gazouli
- Basic Medical Sciences, Medical School, National and Kapodistrian University of Athens, Athens 11527, Greece
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Zhang C, Chen X, Liu S, Liu W, Zhu D, Li X, Qu S, Zhu Z, Zhang J, Zhou Z. Nutritional Status in Chinese Patients with Obesity Following Sleeve Gastrectomy/Roux-en-Y Gastric Bypass: A Retrospective Multicenter Cohort Study. Nutrients 2022; 14:1932. [PMID: 35565899 PMCID: PMC9101375 DOI: 10.3390/nu14091932] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Revised: 04/20/2022] [Accepted: 04/25/2022] [Indexed: 11/16/2022] Open
Abstract
Metabolic surgery (MS) is one of the most effective therapies for treating obesity. Due to the lack of multicenter cohort research on nutritional evaluations after surgery in Chinese patients, we explored the changes in nutritional status following MS in Chinese patients. This was a retrospective study of patients (n = 903) who underwent sleeve gastrectomy (SG) (n = 640) or Roux-en-Y gastric bypass (RYGB) (n = 263) for obesity at five different hospitals in China between 17 February 2011, and 20 December 2019. Major nutrients were evaluated at baseline and 1, 3, 6, and 12 months postoperatively. Hb levels decreased, and anemia prevalence increased at 12 months after MS in the premenopausal female group. Moreover, patients with preoperative anemia had an increased risk of postoperative anemia. The ferritin levels (p < 0.001) decreased and iron deficiency increased (p < 0.001) at 12 months after MS among premenopausal females. No significant changes in folate deficiency and vitamin B12 deficiency were found throughout the study. The bone mineral density (BMD) of the femoral neck, lumbar spine, and total hip significantly decreased from baseline to 12 months after MS; however, no new patients developed osteopenia or osteoporosis after MS. Based on 12 months of follow-up, premenopausal females presented a high incidence of anemia after MS. Although we found no differences in osteopenia and osteoporosis prevalence after MS, the BMD did decrease significantly, which suggests that nutrient supplements and long-term follow-up are especially necessary postoperation.
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Affiliation(s)
- Chunlan Zhang
- National Clinical Research Center for Metabolic Diseases, Metabolic Syndrome Research Center, Key Laboratory of Diabetes Immunology, Ministry of Education, Department of Metabolism and Endocrinology, The Second Xiangya Hospital of Central South University, Changsha 410011, China; (C.Z.); (X.C.); (S.L.)
| | - Xi Chen
- National Clinical Research Center for Metabolic Diseases, Metabolic Syndrome Research Center, Key Laboratory of Diabetes Immunology, Ministry of Education, Department of Metabolism and Endocrinology, The Second Xiangya Hospital of Central South University, Changsha 410011, China; (C.Z.); (X.C.); (S.L.)
| | - Shiping Liu
- National Clinical Research Center for Metabolic Diseases, Metabolic Syndrome Research Center, Key Laboratory of Diabetes Immunology, Ministry of Education, Department of Metabolism and Endocrinology, The Second Xiangya Hospital of Central South University, Changsha 410011, China; (C.Z.); (X.C.); (S.L.)
| | - Wei Liu
- Department of Metabolic Surgery, Department of Biliopancreatic Surgery, The Second Xiangya Hospital, Central South University, Changsha 410011, China;
| | - Dalong Zhu
- Department of Endocrinology, Drum Tower Hospital Affiliated to Nanjing University Medical School, Nanjing 210000, China;
| | - Xiaoying Li
- Department of Endocrinology and Metabolism, Zhongshan Hospital, Fudan University, Shanghai 200000, China;
| | - Shen Qu
- Department of Endocrinology and Metabolism, School of Medicine, Shanghai Tenth People’s Hospital, Tongji University, Shanghai 200000, China;
| | - Zhiming Zhu
- Chongqing Hypertension Institute, Department of Hypertension and Endocrinology, Daping Hospital, The Third Military Medical University, Chongqing 400000, China;
| | - Jingjing Zhang
- National Clinical Research Center for Metabolic Diseases, Metabolic Syndrome Research Center, Key Laboratory of Diabetes Immunology, Ministry of Education, Department of Metabolism and Endocrinology, The Second Xiangya Hospital of Central South University, Changsha 410011, China; (C.Z.); (X.C.); (S.L.)
| | - Zhiguang Zhou
- National Clinical Research Center for Metabolic Diseases, Metabolic Syndrome Research Center, Key Laboratory of Diabetes Immunology, Ministry of Education, Department of Metabolism and Endocrinology, The Second Xiangya Hospital of Central South University, Changsha 410011, China; (C.Z.); (X.C.); (S.L.)
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Guéant JL, Guéant-Rodriguez RM, Alpers DH. Vitamin B12 absorption and malabsorption. VITAMINS AND HORMONES 2022; 119:241-274. [PMID: 35337622 DOI: 10.1016/bs.vh.2022.01.016] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Vitamin B12 is assimilated and transported by complex mechanisms that involve three transport proteins, intrinsic factor (IF), haptocorrin (HC) and transcobalamin (TC) and their respective membrane receptors. Vitamin deficiency is mainly due to inadequate dietary intake in vegans, and B12 malabsorption is related to digestive diseases. This review explores the physiology of vitamin B12 absorption and the mechanisms and diseases that produce malabsorption. In the stomach, B12 is released from food carrier proteins and binds to HC. The degradation of HC by pancreatic proteases and the pH change trigger the transfer of B12 to IF in the duodenum. Cubilin and amnionless are the two components of the receptor that mediates the uptake of B12 in the distal ileum. Part of liver B12 is excreted in bile, and undergoes an enterohepatic circulation. The main causes of B12 malabsorption include inherited disorders (Intrinsic factor deficiency, Imerslund-Gräsbeck disease, Addison's pernicious anemia, obesity, bariatric surgery and gastrectomies. Other causes include pancreatic insufficiency, obstructive Jaundice, tropical sprue and celiac disease, bacterial overgrowth, parasitic infestations, Zollinger-Ellison syndrome, inflammatory bowel diseases, chronic radiation enteritis of the distal ileum and short bowel. The assessment of B12 deficit is recommended in the follow-up of subjects with bariatric surgery. The genetic causes of B12 malabsorption are probably underestimated in adult cases with B12 deficit. Despite its high prevalence in the general population and in the elderly, B12 malabsorption cannot be anymore assessed by the Schilling test, pointing out the urgent need for an equivalent reliable test.
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Affiliation(s)
- Jean-Louis Guéant
- University of Lorraine, INSERM UMR_S 1256, Nutrition, Genetics, and Environmental Risk Exposure (NGERE), Faculty of Medicine of Nancy, Nancy, France; Department of Biochemistry, Molecular Biology, Nutrition, and Metabolism, University Hospital of Nancy, Nancy, France; Department of Hepato-Gastroenterology, University Hospital of Nancy, Nancy, France.
| | - Rosa-Maria Guéant-Rodriguez
- University of Lorraine, INSERM UMR_S 1256, Nutrition, Genetics, and Environmental Risk Exposure (NGERE), Faculty of Medicine of Nancy, Nancy, France; Department of Biochemistry, Molecular Biology, Nutrition, and Metabolism, University Hospital of Nancy, Nancy, France
| | - David H Alpers
- Department of Internal Medicine, Division of Gastroenterology, Washington University School of Medicine, St Louis, MO, United States.
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Gasmi A, Bjørklund G, Mujawdiya PK, Semenova Y, Dosa A, Piscopo S, Pen JJ, Gasmi Benahmed A, Costea DO. Dietary supplements and bariatric surgery. Crit Rev Food Sci Nutr 2022; 63:7477-7488. [PMID: 35426325 DOI: 10.1080/10408398.2022.2046542] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Bariatric surgery or weight loss surgery has been in practice for achieving significant weight loss in patients who have failed to achieve weight loss after pharmacological interventions. The rising cases of obesity are a triggering factor for more bariatric surgeries worldwide. Interestingly, sustained weight loss achieved post-bariatric surgery offers metabolic advantages, and patients show improved glucose and lipid metabolisms. Bariatric surgery is directly linked to higher incidences of vitamin, mineral, and trace element deficiencies, thus making patients susceptible to anemia, osteoporosis, and cardiomyopathy. Reduced nutrient absorption capacity, dietary changes, dietary restriction, and altered gastrointestinal tract morphology are some reasons for nutritional deficiency observed in post-bariatric surgery procedures. Micro-and-macronutrient deficiency observed in patients during the postoperative phase requires continuous monitoring of nutritional parameters. Therefore, adequate multivitamin and mineral supplements become essential to prevent/overcome micronutrient deficiencies. Bariatric surgery also raises the risk of small for gestational age (SGA) babies. Hence, a 12 - 24 months gap is recommended between bariatric surgery and pregnancy to achieve desired weight loss targets. The topic of this review is the impact of bariatric surgery procedures on vitamin and mineral absorption and the role of dietary supplements in maintaining a healthy nutritional balance during the postoperative phase.
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Affiliation(s)
- Amin Gasmi
- Société Francophone de Nutrithérapie et de Nutrigénétique Appliquée, Villeurbanne, France
- Laboratoire Interuniversitaire de Biologie de la Motricité, Université Claude Bernard, Villeurbanne, France
| | - Geir Bjørklund
- Council for Nutritional and Environmental Medicine (CONEM), Mo i Rana, Norway
| | | | - Yuliya Semenova
- Department of Neurology, Ophthalmology, ENT, Semey Medical University, Semey, Kazakhstan
- CONEM Kazakhstan Environmental Health and Safety Research Group, Semey Medical University, Semey, Kazakhstan
| | - Alexandru Dosa
- Medical Faculty, Ovidius University of Constanta, Constanta, Romania
| | - Salva Piscopo
- Société Francophone de Nutrithérapie et de Nutrigénétique Appliquée, Villeurbanne, France
- Department of Nutritional Research and Development, ESE Group, Weiswampach, Luxembourg
| | - Joeri J Pen
- Diabetes Clinic, Department of Internal Medicine, UZ Brussel, Vrije Universiteit Brussel (VUB), Brussels, Belgium
- Department of Nutrition, UZ Brussel, Vrije Universiteit Brussel (VUB), Brussels, Belgium
| | - Asma Gasmi Benahmed
- Académie Internationale de Médecine Dentaire Intégrative, Paris, France
- Université Claude Bernard - Lyon 1, Villeurbanne, France
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Gastrointestinal Cancer Patient Nutritional Management: From Specific Needs to Novel Epigenetic Dietary Approaches. Nutrients 2022; 14:nu14081542. [PMID: 35458104 PMCID: PMC9024975 DOI: 10.3390/nu14081542] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 03/28/2022] [Accepted: 04/05/2022] [Indexed: 02/06/2023] Open
Abstract
Nutritional habits impinge on the health of the gastrointestinal (GI) tract, contributing to GI disorder progression. GI cancer is a widespread and aggressive tumor sensitive to nutritional changes. Indeed, specific nutritional expedients can be adopted to prevent GI cancer onset and to slow down disease activity. Moreover, the patient’s nutritional status impacts prognosis, quality of life, and chemotherapy tolerance. These patients encounter the highest frequency of malnourishment risk, a condition that can progressively evolve into cachexia. Clinical studies dealing with this topic stressed the importance of nutritional counseling and put under the spotlight nutrient delivery, the type of nutrient supplementation, and timing for the start of nutritional management. A medical practitioner well-prepared on the topic of nutrition and cancer should operate in the clinical team dedicated to these oncological patients. This specific expertise needs to be implemented as soon as possible to adopt nutritional interventions and establish a proper patient-tailored dietary regimen. The nutritional gap closure should be prompt during anticancer treatment to stabilize weight loss, improve treatment tolerability, and ameliorate survival rate. Recently, novel nutritional approaches were investigated to target the bidirectional link between epigenetics and metabolism, whose alteration supports the onset, progression, and therapeutic response of GI cancer patients.
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Malafaia AB, Nassif PAN, Lucas RWDC, Garcia RF, Ribeiro JGA, Proença LBDE, Mattos ME, Ariede BL. IS THE WAIST/HEIGHT RATIO A BETTER PARAMETER THAN BMI IN DETERMINING THE CARDIOMETABOLIC RISK PROFILE OF OBESE PEOPLE? ABCD-ARQUIVOS BRASILEIROS DE CIRURGIA DIGESTIVA 2022; 34:e1610. [PMID: 35019122 PMCID: PMC8735133 DOI: 10.1590/0102-672020210003e1610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Accepted: 03/23/2021] [Indexed: 11/22/2022]
Abstract
Background: The increased prevalence of obesity has led to a significant increase in the occurrence of metabolic syndrome, a recognized risk factor for increased morbidity and mortality from cardiovascular diseases. Hyperglycemia or type 2 diabetes mellitus, dyslipidemia and arterial hypertension are its main components. Since 2015, international guidelines have recognized the benefits of bariatric surgery in each isolated factor of this syndrome.
Aim: To evaluate the impact of Roux-en-Y gastric bypass in this syndrome comparing pre- and postoperative periods with laboratory analysis and to compare waist/height ratio and BMI in relation to the determination of the cardiometabolic risk profile.
Methods: A retrospective study was carried out, selecting 80 patients undergoing Roux-en-Y gastric bypass. Total cholesterol, HDL, LDL, triglycerides, fasting glucose, glycated hemoglobin, insulin, body mass index (BMI), vitamin D, vitamin B12, waist circumference and waist/height ratio in three periods were analyzed: the preoperative period from 1 to 6 months, postoperative from 1 to 6 months and postoperative from 1 to 2 years.
Results: There was an improvement in all parameters of the clinical analyses. The preoperative BMI had a mean value of 39.8, in the preoperative period from 1 to 6 months, the values dropped to 33.2 and in the postoperative period of 1 year, the mean was 26. The perimeter mean values of 118.5 preoperatively, 105.2 postoperatively from 1 to 6 months and 90.3 postoperatively from 1 to 2 years. Waist/height ratio was 0.73, 0.65 and 0.56 in pre, post 1 to 6 months and 1 to 2 years respectively.
Conclusion: Roux-en-Y gastric bypass improves metabolic syndrome and waist-to-height ratio is superior to BMI in the assessment of the cardiometabolic risk profile.
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Affiliation(s)
| | - Paulo Afonso Nunes Nassif
- Mackenzie Evangelical Faculty of Paraná, Curitiba, PR, Brazil.,University Evangelical Mackenzie Hospital, Curitiba, PR, Brazil.,Paulo Nassif Institute, Curitiba, PR, Brazil
| | | | - Rodrigo Ferreira Garcia
- University Evangelical Mackenzie Hospital, Curitiba, PR, Brazil.,Paulo Nassif Institute, Curitiba, PR, Brazil
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12
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Micronutrient supplementation in pregnancies following bariatric surgery: a practical review for clinicians. Obes Surg 2021; 31:4542-4554. [PMID: 34304377 DOI: 10.1007/s11695-021-05546-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Revised: 06/15/2021] [Accepted: 06/18/2021] [Indexed: 10/20/2022]
Abstract
Patients who have undergone bariatric surgery are at high risk for nutritional deficiencies before and after surgery if no proper supplementation and close follow-up are maintained. As pregnancies after these surgeries are occurring more frequently, deficiencies imply risks for both mother and child. Nutritional needs for this specific population are different from that of patients with obesity or a non-bariatric population. This review provides a comprehensive summary of the most described vitamins and minerals during pregnancy, after bariatric surgery, and during pregnancy after bariatric surgery in order to summarize their specific needs and possible side effects and to provide a useful guideline to the involved caregivers.
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13
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Sobczyńska-Malefora A, Delvin E, McCaddon A, Ahmadi KR, Harrington DJ. Vitamin B 12 status in health and disease: a critical review. Diagnosis of deficiency and insufficiency - clinical and laboratory pitfalls. Crit Rev Clin Lab Sci 2021; 58:399-429. [PMID: 33881359 DOI: 10.1080/10408363.2021.1885339] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Vitamin B12 (cobalamin) is an essential cofactor for two metabolic pathways. It is obtained principally from food of animal origin. Cobalamin becomes bioavailable through a series of steps pertaining to its release from dietary protein, intrinsic factor-mediated absorption, haptocorrin or transcobalamin-mediated transport, cellular uptake, and two enzymatic conversions (via methionine synthase and methylmalonyl-CoA-mutase) into cofactor forms: methylcobalamin and adenosylcobalamin. Vitamin B12 deficiency can masquerade as a multitude of illnesses, presenting different perspectives from the point of view of the hematologist, neurologist, gastroenterologist, general physician, or dietician. Increased physician vigilance and heightened patient awareness often account for its early presentation, and testing sometimes occurs during a phase of vitamin B12 insufficiency before the main onset of the disease. The chosen test often depends on its availability rather than on the diagnostic performance and sensitivity to irrelevant factors interfering with vitamin B12 markers. Although serum B12 is still the most commonly used and widely available test, diagnostics by holotranscobalamin, serum methylmalonic acid, and plasma homocysteine measurements have grown in the last several years in routine practice. The lack of a robust absorption test, coupled with compromised sensitivity and specificity of other tests (intrinsic factor and gastric parietal cell antibodies), hinders determination of the cause for depleted B12 status. This can lead to incorrect supplementation regimes and uncertainty regarding later treatment. This review discusses currently available knowledge on vitamin B12, informs the reader about the pitfalls of tests for assessing its deficiency, reviews B12 status in various populations at different disease stages, and provides recommendations for interpretation, treatment, and associated risks. Future directions for diagnostics of B12 status and health interventions are also discussed.
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Affiliation(s)
- Agata Sobczyńska-Malefora
- The Nutristasis Unit, Viapath, St. Thomas' Hospital, London, UK.,Faculty of Life Sciences and Medicine, King's College London, London, UK
| | - Edgard Delvin
- Sainte-Justine UHC Research Centre, Montreal, Canada.,Department of Biochemistry and Molecular Medicine, University of Montreal, Montreal, Canada
| | | | - Kourosh R Ahmadi
- Department of Nutrition & Metabolism, School of Biosciences and Medicine, University of Surrey, Guildford, UK
| | - Dominic J Harrington
- The Nutristasis Unit, Viapath, St. Thomas' Hospital, London, UK.,Faculty of Life Sciences and Medicine, King's College London, London, UK
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14
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Al Mansoori A, Shakoor H, Ali HI, Feehan J, Al Dhaheri AS, Cheikh Ismail L, Bosevski M, Apostolopoulos V, Stojanovska L. The Effects of Bariatric Surgery on Vitamin B Status and Mental Health. Nutrients 2021; 13:1383. [PMID: 33923999 PMCID: PMC8073305 DOI: 10.3390/nu13041383] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Revised: 04/16/2021] [Accepted: 04/16/2021] [Indexed: 02/06/2023] Open
Abstract
Diet is a modifiable factor that ensures optimal growth, biochemical performance, improved mood and mental functioning. Lack of nutrients, notably vitamin B, has an impact on human health and wellbeing. The United Arab Emirates is facing a serious problem of micronutrient deficiencies because of the growing trend for bariatric surgery, including Roux-en-Y gastric bypass and sleeve gastrectomy. People undergoing bariatric surgery are at high risk of developing neurological, cognitive, and mental disabilities and cardiovascular disease due to deficiency in vitamin B. Vitamin B is involved in neurotransmitter synthesis, including γ-aminobutyric acid, serotonin, dopamine, and noradrenaline. Deficiency of vitamin B increases the risk of depression, anxiety, dementia and Alzheimer's disease. In addition, vitamin B deficiency can disrupt the methylation of homocysteine, leading to hyperhomocysteinemia. Elevated homocysteine levels are detrimental to human health. Vitamin B deficiency also suppresses immune function, increases the production of pro-inflammatory cytokines and upregulates NF-κB. Considering the important functions of vitamin B and the severe consequences associated with its deficiency following bariatric surgery, proper dietary intervention and administration of adequate supplements should be considered to prevent negative clinical outcomes.
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Affiliation(s)
- Amna Al Mansoori
- Department of Nutrition and Health, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain 15551, United Arab Emirates; (A.A.M.); (H.S.); (H.I.A.); (A.S.A.D.)
| | - Hira Shakoor
- Department of Nutrition and Health, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain 15551, United Arab Emirates; (A.A.M.); (H.S.); (H.I.A.); (A.S.A.D.)
| | - Habiba I. Ali
- Department of Nutrition and Health, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain 15551, United Arab Emirates; (A.A.M.); (H.S.); (H.I.A.); (A.S.A.D.)
| | - Jack Feehan
- Institute for Health and Sport, Victoria University, Melbourne, VIC 8001, Australia; (J.F.); (V.A.)
- Department of Medicine-Western Health, The University of Melbourne, Melbourne, VIC 8001, Australia
| | - Ayesha S. Al Dhaheri
- Department of Nutrition and Health, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain 15551, United Arab Emirates; (A.A.M.); (H.S.); (H.I.A.); (A.S.A.D.)
| | - Leila Cheikh Ismail
- Clinical Nutrition and Dietetics Department, College of Health Sciences, University of Sharjah, Sharjah 27272, United Arab Emirates;
- Nuffield Department of Women’s & Reproductive Health, University of Oxford, Oxford OX1 2JD, UK
| | - Marijan Bosevski
- Faculty of Medicine Skopje, University Clinic of Cardiology, University of Ss. Cyril and Methodius, 1010 Skopje, North Macedonia;
| | - Vasso Apostolopoulos
- Institute for Health and Sport, Victoria University, Melbourne, VIC 8001, Australia; (J.F.); (V.A.)
| | - Lily Stojanovska
- Department of Nutrition and Health, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain 15551, United Arab Emirates; (A.A.M.); (H.S.); (H.I.A.); (A.S.A.D.)
- Institute for Health and Sport, Victoria University, Melbourne, VIC 8001, Australia; (J.F.); (V.A.)
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15
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Quilliot D, Coupaye M, Ciangura C, Czernichow S, Sallé A, Gaborit B, Alligier M, Nguyen-Thi PL, Dargent J, Msika S, Brunaud L. Recommendations for nutritional care after bariatric surgery: Recommendations for best practice and SOFFCO-MM/AFERO/SFNCM/expert consensus. J Visc Surg 2021; 158:51-61. [PMID: 33436155 DOI: 10.1016/j.jviscsurg.2020.10.013] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Nutritional care after bariatric surgery is an issue of major importance, especially insofar as risk of deficiency has been extensively described in the literature. Subsequent to the deliberations carried out by a multidisciplinary working group, we are proposing a series of recommendations elaborated using the Delphi-HAS (official French health authority) method, which facilitates the drawing up of best practice and consensus recommendations based on the data of the literature and on expert opinion. The recommendations in this paper pertain to dietary management and physical activity, multivitamin and trace element supplementation and the prevention and treatment of specific deficiencies in vitamins B1, B9, B12, D and calcium, iron, zinc, vitamins A, E and K, dumping syndrome and reactive hypoglycemia.
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Affiliation(s)
- D Quilliot
- French Speaking Society of Clinical Nutrition and Metabolism (SFNCM), France.
| | - M Coupaye
- French Association for the Study and Research on Obesity (AFERO), France
| | - C Ciangura
- French Association for the Study and Research on Obesity (AFERO), France
| | - S Czernichow
- French Speaking Society of Clinical Nutrition and Metabolism (SFNCM), France
| | - A Sallé
- French Association for the Study and Research on Obesity (AFERO), France
| | - B Gaborit
- French Association for the Study and Research on Obesity (AFERO), France
| | - M Alligier
- French Obesity Research Center of Excellence (FORCE), France
| | - P-L Nguyen-Thi
- Medical Evaluation Department, Department of Clinical Research Support PARC, University of Lorraine, CHRU Nancy, Nancy, France
| | - J Dargent
- French and Francophone Society of Obesity Surgery and Metabolic Disorders (SO.FF.CO.MM), France
| | - S Msika
- French and Francophone Society of Obesity Surgery and Metabolic Disorders (SO.FF.CO.MM), France
| | - L Brunaud
- French and Francophone Society of Obesity Surgery and Metabolic Disorders (SO.FF.CO.MM), France
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16
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Zhang C, Chen X, Li J, Liu Z, Liu W, Zhang J, Zhou Z. Anaemia and Related Nutritional Deficiencies in Chinese Patients with Obesity, 12 Months Following Laparoscopic Sleeve Gastrectomy. Diabetes Metab Syndr Obes 2021; 14:1575-1587. [PMID: 33880047 PMCID: PMC8051959 DOI: 10.2147/dmso.s303320] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Accepted: 03/12/2021] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND Laparoscopic sleeve gastrectomy (LSG) has become a predominant bariatric procedure at present. However, data are scarce regarding the nutritional impact of this procedure on Chinese patients. This study aimed to evaluate the prevalence of nutritional deficiency after LSG in Chinese patients. METHODS Eighty-two patients with obesity were recruited from the Second Xiangya Hospital of Central South University, and all patients underwent LSG and completed the visit. RESULTS Compared with the baseline, the serum albumin levels increased significantly at 1-12 months (P<0.001) after surgery, and the hypoalbuminemia rate decreased from 8.5% to 0% throughout the study (P=0.063). Anaemia was present in 7.3% of all patients before surgery, and its prevalence increased to 11.0% at 12 months post-operation (P=0.109). The anaemia rate of fertile females was higher than that of males (21.4% vs 2.3%, P=0.036). No significant changes were found in vitamin B12 deficiency throughout the study (0% vs 3.8%, P=1.0). The increases in the folate deficiency were only discovered in the female group (3.7% vs 20%, P=0.031) and the obese without type 2 diabetes (T2D) group after LSG (27.3% vs 47.1%, P=0.031). A decrease in the ferritin levels and an increase in iron deficiency at 12 months post-surgery were found among all patients. CONCLUSION Based on 12 months of follow-up, LSG is effective in controlling metabolic syndrome and has a modest effect on nutritional deficiencies, which suggests that LSG is an effective and comparably safe procedure for Chinese patients considering nutritional deficiencies at 12 months post-surgery.
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Affiliation(s)
- Chunlan Zhang
- National Clinical Research Center for Metabolic Diseases, Metabolic Syndrome Research Center, Key Laboratory of Diabetes Immunology, Ministry of Education, Department of Metabolism and Endocrinology, The Second Xiangya Hospital of Central South University, Changsha, Hunan, 410011, People’s Republic of China
| | - Xi Chen
- National Clinical Research Center for Metabolic Diseases, Metabolic Syndrome Research Center, Key Laboratory of Diabetes Immunology, Ministry of Education, Department of Metabolism and Endocrinology, The Second Xiangya Hospital of Central South University, Changsha, Hunan, 410011, People’s Republic of China
| | - Jingping Li
- Department of Metabolic Surgery, Department of Biliopancreatic Surgery, The Second Xiangya Hospital, Central South University, Changsha, Hunan, 410011, People’s Republic of China
| | - Zhenqi Liu
- Division of Endocrinology and Metabolism, Department of Medicine, University of Virginia Health System, Charlottesville, VA, USA
| | - Wei Liu
- Department of Metabolic Surgery, Department of Biliopancreatic Surgery, The Second Xiangya Hospital, Central South University, Changsha, Hunan, 410011, People’s Republic of China
- Wei Liu Department of Metabolic Surgery, Department of Biliopancreatic Surgery, The Second Xiangya Hospital, Central South University, 139 Renmin Middle Road, Changsha, Hunan, People’s Republic of ChinaTel +86 731-85292154 Email
| | - Jingjing Zhang
- National Clinical Research Center for Metabolic Diseases, Metabolic Syndrome Research Center, Key Laboratory of Diabetes Immunology, Ministry of Education, Department of Metabolism and Endocrinology, The Second Xiangya Hospital of Central South University, Changsha, Hunan, 410011, People’s Republic of China
- Correspondence: Jingjing Zhang National Clinical Research Center for Metabolic Diseases, Metabolic Syndrome Research Center, Key Laboratory of Diabetes Immunology, Ministry of Education, Department of Metabolism and Endocrinology, The Second Xiangya Hospital of Central South University, 139 Renmin Middle Road, Changsha, Hunan, People’s Republic of ChinaTel +86 731-85292154 Email
| | - Zhiguang Zhou
- National Clinical Research Center for Metabolic Diseases, Metabolic Syndrome Research Center, Key Laboratory of Diabetes Immunology, Ministry of Education, Department of Metabolism and Endocrinology, The Second Xiangya Hospital of Central South University, Changsha, Hunan, 410011, People’s Republic of China
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17
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Martínez-Ortega AJ, Olveira G, Pereira-Cunill JL, Arraiza-Irigoyen C, García-Almeida JM, Irles Rocamora JA, Molina-Puerta MJ, Molina Soria JB, Rabat-Restrepo JM, Rebollo-Pérez MI, Serrano-Aguayo MP, Tenorio-Jiménez C, Vílches-López FJ, García-Luna PP. Recommendations Based on Evidence by the Andalusian Group for Nutrition Reflection and Investigation (GARIN) for the Pre- and Postoperative Management of Patients Undergoing Obesity Surgery. Nutrients 2020; 12:nu12072002. [PMID: 32640531 PMCID: PMC7400832 DOI: 10.3390/nu12072002] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Revised: 06/24/2020] [Accepted: 07/02/2020] [Indexed: 12/13/2022] Open
Abstract
In order to develop evidence-based recommendations and expert consensus for nutrition management of patients undergoing bariatric surgery and postoperative follow-up, we conducted a systematic literature search using PRISMA methodology plus critical appraisal following the SIGN and AGREE-II procedures. The results were discussed among all members of the GARIN group, and all members answered a Likert scale questionnaire to assess the degree of support for every recommendation. Patients undergoing bariatric surgery should be screened preoperatively for some micronutrient deficiencies and treated accordingly. A VLCD (Very Low-Calorie Diet) should be used for 4–8 weeks prior to surgery. Postoperatively, a liquid diet should be maintained for a month, followed by a semi-solid diet also for one month. Protein requirements (1–1.5 g/kg) should be estimated using adjusted weight. Systematic use of specific multivitamin supplements is encouraged. Calcium citrate and vitamin D supplements should be used at higher doses than are currently recommended. The use of proton-pump inhibitors should be individualised, and vitamin B12 and iron should be supplemented in case of deficit. All patients, especially pregnant women, teenagers, and elderly patients require a multidisciplinary approach and specialised follow-up. These recommendations and suggestions regarding nutrition management when undergoing bariatric surgery and postoperative follow-up have direct clinical applicability.
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Affiliation(s)
- Antonio J. Martínez-Ortega
- Unidad de Gestión Clínica de Endocrinología y Nutrición, Hospital Universitario Virgen del Rocío, 41013 Sevilla, Spain; (A.J.M.-O.); (J.L.P.-C.); (M.P.S.-A.); (P.P.G.-L.)
- Endocrine Diseases Research Group, Institute of Biomedicine of Seville (IBiS), 41007 Sevilla, Spain
| | - Gabriel Olveira
- Unidad de Gestión Clínica de Endocrinología y Nutrición, Hospital Regional Universitario de Málaga/Universidad de Málaga, 29010 Málaga, Spain
- Instituto de Investigación Biomédica de Málaga (IBIMA), 29010 Málaga, Spain;
- CIBERDEM (CB07/08/0019), Instituto de Salud Carlos III, 28029 Madrid, Spain
- Correspondence: ; Tel.: +34-951-29-0343
| | - José L. Pereira-Cunill
- Unidad de Gestión Clínica de Endocrinología y Nutrición, Hospital Universitario Virgen del Rocío, 41013 Sevilla, Spain; (A.J.M.-O.); (J.L.P.-C.); (M.P.S.-A.); (P.P.G.-L.)
- Endocrine Diseases Research Group, Institute of Biomedicine of Seville (IBiS), 41007 Sevilla, Spain
| | | | - José M. García-Almeida
- Instituto de Investigación Biomédica de Málaga (IBIMA), 29010 Málaga, Spain;
- Unidad de gestión Clínica de Endocrinología y Nutrición, Hospital Universitario Virgen de la Victoria, 29010 Málaga, Spain
| | | | - María J. Molina-Puerta
- UGC Endocrinología y Nutrición, Hospital Universitario Reina Sofía, 14004 Córdoba, Spain;
- Instituto Maimónides de Investigación Biomédica de Córdoba (IMIBIC), 14004 Córdoba, Spain
| | | | | | - María I. Rebollo-Pérez
- Servicio de Endocrinología y Nutrición, Hospital Juan Ramón Jiménez, 21005 Huelva, Spain;
| | - María P. Serrano-Aguayo
- Unidad de Gestión Clínica de Endocrinología y Nutrición, Hospital Universitario Virgen del Rocío, 41013 Sevilla, Spain; (A.J.M.-O.); (J.L.P.-C.); (M.P.S.-A.); (P.P.G.-L.)
- Endocrine Diseases Research Group, Institute of Biomedicine of Seville (IBiS), 41007 Sevilla, Spain
| | - Carmen Tenorio-Jiménez
- Endocrinology and Nutrition Clinical Management Unit, University Hospital Virgen de las Nieves, 18014 Granada, Spain;
| | | | - Pedro P. García-Luna
- Unidad de Gestión Clínica de Endocrinología y Nutrición, Hospital Universitario Virgen del Rocío, 41013 Sevilla, Spain; (A.J.M.-O.); (J.L.P.-C.); (M.P.S.-A.); (P.P.G.-L.)
- Endocrine Diseases Research Group, Institute of Biomedicine of Seville (IBiS), 41007 Sevilla, Spain
- GARIN Group Coordinator, 41007 Seville, Spain
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18
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Souza NMM, Santos ACO, Santa-Cruz F, Guimarães H, Silva LML, de-Lima DSC, Ferraz ÁAB, Kreimer F. Nutritional impact of bariatric surgery: a comparative study of Roux-en-Y Gastric Bypass and Sleeve gastrectomy between patients from the public and private health systems. ACTA ACUST UNITED AC 2020; 47:e20202404. [PMID: 32555963 DOI: 10.1590/0100-6991e-20202404] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2019] [Accepted: 02/28/2020] [Indexed: 12/25/2022]
Abstract
PURPOSE To compare the nutritional status follow up of patients who underwent Roux-en-Y gastric bypass (BGYR) and Sleeve gastrectomy (SG) in hospitals of the private and public health systems, in Pernambuco. METHODS This study included patients who underwent bariatric surgery in the public and private health systems, in Pernambuco, from 2008 to 2016. Anthropometric and biochemical (hemoglobin, B12, iron and ferritin) data were evaluated in the preoperative period and at 3, 6 and 12 months after the operation. RESULTS There were no significant difference between patients seen at the two health systems regarding the levels of hemoglobin, iron, anemia and vitamin B12. Patients who underwent the RYGB, presented with iron deficiency which was significantly lower for those in the private system, but only at the 3 month evaluation. Low levels of ferritin were observed at the 6 month evaluation, and patients in the private health system presented with the highest ferritin deficiency. The rate of surgical success was significantly higher in those patients undergoing the RYGB at the private system. CONCLUSIONS After a 12-month bariatric surgery follow-up, there was no statistically significant difference regarding micronutrient deficiency between patients followed up at the private and public health systems.
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Affiliation(s)
- Natália M M Souza
- Universidade Federal de Pernambuco (UFPE), Surgical post-graduation program, Recife, PE, Brasil
| | - Ana Célia O Santos
- Universidade Federal de Pernambuco (UFPE), Nutrition Department, Recife, PE, Brasil
| | - Fernando Santa-Cruz
- Universidade Federal de Pernambuco (UFPE), School of Medicine, Recife, PE, Brasil
| | - Henrique Guimarães
- Universidade Federal de Pernambuco (UFPE), School of Medicine, Recife, PE, Brasil
| | - Lucas M L Silva
- Universidade Federal de Pernambuco (UFPE), Genetics department, Recife, PE, Brasil
| | - Denise Sandrelly C de-Lima
- Hospital das Clínicas, Universidade Federal de Pernambuco (HC/UFPE), Nursing Department, Recife, PE, Brasil
| | - Álvaro A B Ferraz
- Universidade Federal de Pernambuco (UFPE), Department of surgery, Recife, PE, Brasil
| | - Flávio Kreimer
- Universidade Federal de Pernambuco (UFPE), Department of surgery, Recife, PE, Brasil
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Abstract
Nutrition and gastrointestinal cancer are inextricably linked. The metabolic effects of cancer along with changes in dietary intake, the development of cancer cachexia and the presence of sarcopenia can influence changes in body composition. These have a negative impact on quality of life and tolerance to cancer treatment. Treatment for cancer presents some significant nutritional challenges as nutrition impact symptoms may develop, be exacerbated by treatment and may contribute to a worsening in nutritional status. Nutrition screening and assessment should be an integral part of holistic patient care. The provision of appropriate, evidence-based dietary advice should occur before, during and after cancer treatment. Appropriate and timely methods of nutritional support across the spectrum of gastrointestinal cancer are needed to ensure that people are adequately supported during courses of treatment that can span weeks and months. These can range from standard approaches of supplementing oral intake to complex interventions such as managing high output intestinal stomas. The gastrointestinal tract is particularly susceptible to impact from systemic anti-cancer treatments and radiotherapy. Gastrointestinal late effects of cancer treatment are now recognised to present particular challenges in terms of both medical and nutritional management. These late effects have a significant impact on the individual and their quality of life in addition to implications for the health service. Dietary intake following cancer treatment has an impact on quality of life and future research may demonstrate its influence on the risk of recurrence of gastrointestinal cancer.
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20
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Antoine D, Li Z, Quilliot D, Sirveaux MA, Meyre D, Mangeon A, Brunaud L, Guéant JL, Guéant-Rodriguez RM. Medium term post-bariatric surgery deficit of vitamin B12 is predicted by deficit at time of surgery. Clin Nutr 2020; 40:87-93. [PMID: 32444241 DOI: 10.1016/j.clnu.2020.04.029] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2020] [Revised: 04/19/2020] [Accepted: 04/20/2020] [Indexed: 02/07/2023]
Abstract
BACKGROUND Patients with morbid obesity have a high risk of deficits in micronutrients, after bariatric surgery. The reasons why systematic use of multivitamin and trace element supplements cannot prevent all deficits are complex and should deserve more attention. Little is known about the influence of micronutrient deficits at surgery. AIM This present study aimed to explore the deficit in vitamin B12 vs other micronutrients during the follow-up of a French cohort of cases with bariatric surgery under systematic multivitamin/trace elements supplementation and to determine whether it was influenced by clinical, metabolic characteristics at surgery. METHODS We prospectively enrolled obese patients with bariatric surgery (laparoscopic gastric bypass or laparoscopic sleeve gastrectomy) between 2013 and 2018 (OBESEPI/ALDEPI Cohort, NCT02663388). They received a daily multivitamin/micronutrients supplement. Follow-up data at 4 visits, 2, 12, 18 and 24 months after surgery, were collected. RESULTS The highest rate of deficits was observed at visit 1 for vitamin D (35.7%), iron (21.9%) and folate (10.2%). Except B12, the deficits of all micronutrients decreased in later visits. In contrast, cases with vitamin B12 deficit decreased from 13.5% at surgery to 2.0% at visit 1, and increased in later visits, with a maximum of 12.0% at visit 3. Vitamin B12 concentration at surgery was the single predictor of B12 deficit at visit 3. It was also associated with age, and APRI score, an index of nonalcoholic fatty liver disease (NAFLD), in multivariate analysis. CONCLUSIONS The failure of systematic supplementation with multivitamin/trace elements tablets to prevent specific deficits illustrates the need for adapted specific supplementations, in some cases. The worsening of B12 deficit rate in the 18-24 months follow-up depends in part to low B12 at time of surgery. A special consideration should be devoted to this subset of patients. The cohort study was registered at clinicaltrials.gov as NCT02663388.
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Affiliation(s)
- Darlène Antoine
- Inserm UMRS 1256 N-GERE (Nutrition-Genetics-Environmental Risks) - University de Lorraine, Faculty of Medicine, Nancy, France
| | - Zhen Li
- Inserm UMRS 1256 N-GERE (Nutrition-Genetics-Environmental Risks) - University de Lorraine, Faculty of Medicine, Nancy, France; Department of Digestive, Hepato-Biliary and Endocrine Surgery, Regional University Hospital of Nancy (CHRU Nancy), Nancy, France
| | - Didier Quilliot
- Inserm UMRS 1256 N-GERE (Nutrition-Genetics-Environmental Risks) - University de Lorraine, Faculty of Medicine, Nancy, France; Department of Endocrinology Diabetology and Nutrition, Regional University Hospital of Nancy (CHRU Nancy), Nancy, France; Unité Multidisciplinaire de la Chirurgie de l'obésité (UMCO), Regional University Hospital of Nancy (CHRU Nancy), Nancy, France
| | - Marie-Aude Sirveaux
- Department of Endocrinology Diabetology and Nutrition, Regional University Hospital of Nancy (CHRU Nancy), Nancy, France; Unité Multidisciplinaire de la Chirurgie de l'obésité (UMCO), Regional University Hospital of Nancy (CHRU Nancy), Nancy, France
| | - David Meyre
- Inserm UMRS 1256 N-GERE (Nutrition-Genetics-Environmental Risks) - University de Lorraine, Faculty of Medicine, Nancy, France; Department of Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, Canada
| | - Alice Mangeon
- Inserm UMRS 1256 N-GERE (Nutrition-Genetics-Environmental Risks) - University de Lorraine, Faculty of Medicine, Nancy, France
| | - Laurent Brunaud
- Inserm UMRS 1256 N-GERE (Nutrition-Genetics-Environmental Risks) - University de Lorraine, Faculty of Medicine, Nancy, France; Department of Digestive, Hepato-Biliary and Endocrine Surgery, Regional University Hospital of Nancy (CHRU Nancy), Nancy, France; Unité Multidisciplinaire de la Chirurgie de l'obésité (UMCO), Regional University Hospital of Nancy (CHRU Nancy), Nancy, France
| | - Jean-Louis Guéant
- Inserm UMRS 1256 N-GERE (Nutrition-Genetics-Environmental Risks) - University de Lorraine, Faculty of Medicine, Nancy, France; Department of Hepato-Gastroenterology, Regional University Hospital of Nancy (CHRU Nancy), Nancy, France.
| | - Rosa-Maria Guéant-Rodriguez
- Inserm UMRS 1256 N-GERE (Nutrition-Genetics-Environmental Risks) - University de Lorraine, Faculty of Medicine, Nancy, France; Department of Endocrinology Diabetology and Nutrition, Regional University Hospital of Nancy (CHRU Nancy), Nancy, France.
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21
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Nutritional Deficiencies, Bariatric Surgery, and Serum Homocysteine Level: Review of Current Literature. Obes Surg 2020; 29:3735-3742. [PMID: 31471768 DOI: 10.1007/s11695-019-04100-2] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Obesity is currently one of the biggest global health problems. In the case of severe obesity, bariatric surgeries are considered to be the most important method of treatment. The 2 most commonly performed bariatric surgery procedures include Roux-en-Y gastric bypass and sleeve gastrectomy. However, these methods are not free from complications, and the most common ones (moderately long or long term) are micronutrient deficiencies. The deficiency of vitamins B6, B12, and folic acid as cofactors of the folate cycle contributes to the development of hyperhomocysteinemia. It seems that apart from nutritional factors, there are other aspects that have a significant influence on the concentration of homocysteine in blood, such as the type of conducted bariatric surgery, the post-surgical concentration of betaine and creatinine, and the clearance of methionine (i.e., the mutations of the gene that encodes the MTHFR reductase as well as other genes associated with the process of methylation, e.g., methionine synthase). Their presence might be one of the causes of the increased concentration of homocysteine after surgery despite the fact that patients take vitamin-mineral supplementation.
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Role of Functional Biomarkers to Identify Early Vitamin B12 Deficiency in Patients with Sleeve Gastrectomy: A Cross-Sectional Study. ACTA ACUST UNITED AC 2020; 56:medicina56030142. [PMID: 32245061 PMCID: PMC7143905 DOI: 10.3390/medicina56030142] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Revised: 02/20/2020] [Accepted: 02/24/2020] [Indexed: 12/19/2022]
Abstract
Background and objectives: Although laparoscopic sleeve gastrectomy (LSG) is effective for obesity management, postoperative vitamin B12 (B12) deficiency is of major concern. In this cross-sectional study, we assessed the levels of B12 and its related functional biomarkers, namely, total homocysteine (tHcy), methylmalonic acid (MMA), folate, methylcitric acid (MCA), and hemoglobin (Hb), in one-year postoperative LSG patients and matched controls. Materials and Methods: Plasma B12, tHcy, MMA, folate, and MCA were measured in matched controls (n = 66) and patients (n = 71) using validated liquid chromatography-tandem mass spectrometry techniques and protocols in the United Arab Emirates (UAE). Results: The median B12 concentration in patients (177 pmol/L) was significantly lower (p < 0.001) than in the controls (334.7 pmol/L). The tHcy and MMA levels were significantly increased (p < 0.001 and p = 0.011, respectively) and folate levels were significantly decreased (p = 0.001) in the LSG patients compared to the controls. Interestingly, no significant difference in MCA levels were observed between the two groups. The levels of tHcy and MMA were concomitantly increased with the decreased folate levels in postoperative LSG patients when compared with the controls. The Hb levels were significantly lower in males and females in the patient group compared with those in the control group, respectively (p = 0.005 and p = 0.043). Conclusions: This is the first report of serum levels of B12 and its functional biomarkers in postoperative LSG patients among a local population from the UAE. Our findings revealed significant alterations of the B12 biomarkers, total B12, MMA, and tHcy in one-year postoperative LSG patients.
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23
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Ciobârcă D, Cătoi AF, Copăescu C, Miere D, Crișan G. Bariatric Surgery in Obesity: Effects on Gut Microbiota and Micronutrient Status. Nutrients 2020; 12:E235. [PMID: 31963247 PMCID: PMC7019602 DOI: 10.3390/nu12010235] [Citation(s) in RCA: 57] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Revised: 12/30/2019] [Accepted: 01/13/2020] [Indexed: 02/07/2023] Open
Abstract
Obesity is associated with reduced gut microbial diversity and a high rate of micronutrient deficiency. Bariatric surgery, the therapy of choice for severe obesity, produces sustained weight loss and improvements in obesity-related comorbidities. Also, it significantly alters the gut microbiota (GM) composition and function, which might have an important impact on the micronutrient status as GM is able to synthesize certain vitamins, such as riboflavin, folate, B12, or vitamin K2. However, recent data have reported that GM is not fully restored after bariatric surgery; therefore, manipulation of GM through probiotics represents a promising therapeutic approach in bariatric patients. In this review, we discuss the latest evidence concerning the relationship between obesity, GM and micronutrients, the impact of bariatric surgery on GM in relation with micronutrients equilibrium, and the importance of the probiotics' supplementation in obese patients submitted to surgical treatment.
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Affiliation(s)
- Daniela Ciobârcă
- Department of Bromatology, Hygiene, Nutrition, Faculty of Pharmacy, “Iuliu Hatieganu” University of Medicine and Pharmacy, 23 Gheorghe Marinescu Street, 400337 Cluj-Napoca, Romania
| | - Adriana Florinela Cătoi
- Department of Physiopathology, Faculty of Medicine, “Iuliu Hatieganu” University of Medicine and Pharmacy, 3-4 Victor Babes Street, 400012 Cluj-Napoca, Romania
| | - Cătălin Copăescu
- General Surgery Department, Ponderas Hospital, 85A Nicolae G. Caramfil Street, 014142 Bucharest, Romania;
| | - Doina Miere
- Department of Bromatology, Hygiene, Nutrition, Faculty of Pharmacy, “Iuliu Hatieganu” University of Medicine and Pharmacy, 23 Gheorghe Marinescu Street, 400337 Cluj-Napoca, Romania
| | - Gianina Crișan
- Department of Pharmaceutical Botany, Faculty of Pharmacy, “Iuliu Hatieganu” University of Medicine and Pharmacy, 23 Gheorghe Marinescu Street, 400337 Cluj-Napoca, Romania;
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24
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Wolffenbuttel BH, Wouters HJ, Heiner-Fokkema MR, van der Klauw MM. The Many Faces of Cobalamin (Vitamin B 12) Deficiency. Mayo Clin Proc Innov Qual Outcomes 2019; 3:200-214. [PMID: 31193945 PMCID: PMC6543499 DOI: 10.1016/j.mayocpiqo.2019.03.002] [Citation(s) in RCA: 79] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Although cobalamin (vitamin B12) deficiency was described over a century ago, it is still difficult to establish the correct diagnosis and prescribe the right treatment. Symptoms related to vitamin B12 deficiency may be diverse and vary from neurologic to psychiatric. A number of individuals with vitamin B12 deficiency may present with the classic megaloblastic anemia. In clinical practice, many cases of vitamin B12 deficiency are overlooked or sometimes even misdiagnosed. In this review, we describe the heterogeneous disease spectrum of patients with vitamin B12 deficiency in whom the diagnosis was either based on low serum B12 levels, elevated biomarkers like methylmalonic acid and/or homocysteine, or the improvement of clinical symptoms after the institution of parenteral vitamin B12 therapy. We discuss the possible clinical signs and symptoms of patients with B12 deficiency and the various pitfalls of diagnosis and treatment.
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Affiliation(s)
- Bruce H.R. Wolffenbuttel
- Department of Endocrinology, University of Groningen, University Medical Center Groningen, Groningen, NL-9700 RB, The Netherlands
- Correspondence: Address to Bruce H. R. Wolffenbuttel, MD, PhD, Department of Endocrinology, University of Groningen, University Medical Center Groningen, HPC AA31 9700 RB Groningen, The Netherlands
| | - Hanneke J.C.M. Wouters
- Department of Endocrinology, University of Groningen, University Medical Center Groningen, Groningen, NL-9700 RB, The Netherlands
- Department of Haematology, University of Groningen, University Medical Center Groningen, Groningen, NL-9700 RB, The Netherlands
| | - M. Rebecca Heiner-Fokkema
- Department of Laboratory Medicine, University of Groningen, University Medical Center Groningen, Groningen, NL-9700 RB, The Netherlands
| | - Melanie M. van der Klauw
- Department of Endocrinology, University of Groningen, University Medical Center Groningen, Groningen, NL-9700 RB, The Netherlands
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25
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Wang T, Shen Y, Qiao Z, Wang Y, Zhang P, Yu B. Comparison of Diabetes Remission and Micronutrient Deficiency in a Mildly Obese Diabetic Rat Model Undergoing SADI-S Versus RYGB. Obes Surg 2019; 29:1174-1184. [PMID: 30610678 DOI: 10.1007/s11695-018-03630-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
BACKGROUND Single-anastomosis duodeno-ileal bypass with sleeve gastrectomy (SADI-S) has launched a huge challenge to classic Roux-en-Y gastric bypass (RYGB). Our objective was to compare diabetes remission and micronutrient deficiency in a mildly obese diabetic rat model undergoing SADI-S versus RYGB. METHODS Thirty adult male mildly obese diabetic rats were randomly assigned to sham (S), SADI-S, and RYGB groups. Body weight, food intake, fasting plasma glucose (FPG), oral glucose tolerance test (OGTT), plasma insulin, GLP-1, and ghrelin levels were measured at indicated time points. Meanwhile, insulin sensitivity and pancreatic β cell function were assessed during OGTT. Finally, plasma micronutrient evaluation and islet β cell mass analysis were performed after all animals were sacrificed. RESULTS As compared to sham, the SADI-S and RYGB groups achieved almost equivalent efficacy in caloric restriction and FPG control without excessive weight loss. During OGTT, the SADI-S and RYGB groups also provided comparable effects on glycemic excursion, insulin sensitivity, and β cell function; however, only rats in the RYGB group showed significant changes in gut hormones, whereas the three groups were found to exhibit no significant difference in β cell mass. In addition, only vitamin E in the RYGB group was deficient as compared with the SADI-S and S groups. CONCLUSION In mildly obese diabetic rat, SADI-S and RYGB procedures have comparable efficacy in diabetes remission and risk of micronutrient deficiency. These data show that each of the surgery accomplishes diabetes improvements through both overlapping and distinct mechanisms requiring further investigation.
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Affiliation(s)
- Tingfeng Wang
- Center for Metabolic and Bariatric Surgery, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, 2800 Gongwei Road, Pudong, Shanghai, 201399, China
| | - Yunlong Shen
- Center for Metabolic and Bariatric Surgery, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, 2800 Gongwei Road, Pudong, Shanghai, 201399, China
| | - Zhengdong Qiao
- Center for Medical Research and Innovation, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, 2800 Gongwei Road, Pudong, Shanghai, 201399, China
| | - Yueqian Wang
- Center for Medical Research and Innovation, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, 2800 Gongwei Road, Pudong, Shanghai, 201399, China
| | - Peng Zhang
- Center for Metabolic and Bariatric Surgery, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, 2800 Gongwei Road, Pudong, Shanghai, 201399, China. .,Center for Medical Research and Innovation, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, 2800 Gongwei Road, Pudong, Shanghai, 201399, China.
| | - Bo Yu
- Center for Metabolic and Bariatric Surgery, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, 2800 Gongwei Road, Pudong, Shanghai, 201399, China.
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