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1.
Curr Opin Clin Nutr Metab Care ; 23(2): 138-144, 2020 03.
Artigo em Inglês | MEDLINE | ID: mdl-31977336

RESUMO

PURPOSE OF REVIEW: This is a review of the research on the effectiveness of vitamin supplementation for alcoholism and alcohol-related illnesses. The focus is on research, both clinical and basic on alcohol treatment and nutritional effectiveness of these vital nutrients. RECENT FINDINGS: Most of the research involves basic experiments exploring the impact of vitamin depletion or deficits on physiological systems, especially liver and brain, in rodents. These often include behavioral measures that use cognitive, learning/memory and motivation experiments that model clinical studies. These provide support for hypotheses concerning the impact of such deficiencies in clinical populations. Clinical studies are rare and involve evaluation of the outcome of supplementation usually in the context of a treatment program. Specific vitamins, dosages and treatment programs vary. Deficiencies in retinoids (vitamin A), thiamine (B1) and niacin (B3) are the most frequently investigated. However, there is a greater need for further research on other vitamins, and for more uniform supplementation and treatment procedures. SUMMARY: The literature is primarily basic research on specific vitamins. There are very significant findings with individual vitamin supplementation and combinations that show promise of our understanding of the role of vitamins in the disease of alcoholism and its treatment.


Assuntos
Alcoolismo/terapia , Deficiência de Vitaminas/terapia , Suplementos Nutricionais , Vitaminas/uso terapêutico , Alcoolismo/complicações , Animais , Deficiência de Vitaminas/etiologia , Modelos Animais de Doenças , Humanos , Niacina/uso terapêutico , Estado Nutricional , Tiamina/uso terapêutico , Resultado do Tratamento , Vitamina A/uso terapêutico
2.
Nutr Clin Pract ; 35(1): 50-62, 2020 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-31840874

RESUMO

Micronutrients are essential components of the diet and are required to maintain fundamental bodily functions. Liver disease has a profound effect on nutrient intake, metabolism of nutrients, and nutrition status, often resulting in some degree of malnutrition, including micronutrient deficiency. Vitamin and mineral deficiencies can impair metabolic processes at the cellular and biochemical level even before clinical and physical alterations are seen. It is essential that micronutrient status is evaluated as part of a comprehensive nutrition assessment for all patients with chronic or advanced liver disease. Early intervention to correct suspected or confirmed deficiencies may minimize symptoms and improve clinical outcomes and quality of life. In this narrative review, different types of liver disease and associated micronutrient abnormalities are outlined, and methods of micronutrient assessment and supplementation are discussed.


Assuntos
Hepatopatias/epidemiologia , Hepatopatias/terapia , Micronutrientes/deficiência , Micronutrientes/uso terapêutico , Deficiência de Vitaminas/epidemiologia , Deficiência de Vitaminas/terapia , Dieta , Suplementos Nutricionais , Ingestão de Energia , Humanos , Hepatopatias/fisiopatologia , Desnutrição/epidemiologia , Desnutrição/terapia , Estado Nutricional , Qualidade de Vida , Fatores de Risco , Oligoelementos/deficiência , Vitaminas/uso terapêutico
3.
Curr Neurol Neurosci Rep ; 19(12): 101, 2019 11 26.
Artigo em Inglês | MEDLINE | ID: mdl-31773293

RESUMO

PURPOSE OF REVIEW: The goal of this chapter is to educate clinicians on the neurologic manifestations of certain nutritional deficiencies in order to promptly identify and appropriately treat these patients. RECENT FINDINGS: Many vitamin and nutritional deficiencies have been described dating back to the early days of neurology and medicine. Some are very rare and thus, there are no randomized controlled studies to assess supplementation or dosage; however, there are reviews of case reports that can assist clinicians in choosing treatments. While endemic vitamin and nutritional deficiencies may be rarely encountered in many countries, vulnerable populations continue to be at risk for developing neurologic complications. These populations include those with diseases causing malabsorption, the elderly, chronic alcohol users, as well as pregnant mothers with hyperemesis gravidarum to name a few. It is important to recognize syndromes associated with these nutritional deficiencies, as prompt identification and treatment may prevent permanent neurologic damage.


Assuntos
Doenças do Sistema Nervoso/diagnóstico , Doenças do Sistema Nervoso/epidemiologia , Distúrbios Nutricionais/diagnóstico , Distúrbios Nutricionais/epidemiologia , Deficiência de Vitaminas/diagnóstico , Deficiência de Vitaminas/epidemiologia , Deficiência de Vitaminas/terapia , Humanos , Desnutrição/diagnóstico , Desnutrição/epidemiologia , Desnutrição/terapia , Doenças do Sistema Nervoso/terapia , Neurologia , Distúrbios Nutricionais/terapia
4.
Rev Assoc Med Bras (1992) ; 65(9): 1151-1155, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31618329

RESUMO

This report describes the post-bariatric-surgery evolution of an obese patient who had low adherence to the diet and micronutrient supplementation. Four years after two bariatric surgeries, the patient was admitted due to transient loss of consciousness, slow thinking, anasarca, severe hypoalbuminemia, in addition to vitamin and mineral deficiencies. She had subcutaneous foot abscess but did not present fever. Received antibiotics, vitamins A, D, B12, thiamine, calcium, and parenteral nutrition. After hospitalization (twenty-eight days), there was a significant body weight reduction probably due to the disappearance of clinical anasarca. Parenteral nutrition was suspended after twenty-five days, and the oral diet was kept fractional. After hospitalization (weekly outpatient care), there was a gradual laboratory data improvement, which was now close to the reference values. Such outcome shows the need for specialized care in preventing and treating nutritional complications after bariatric surgeries as well as clinical manifestations of infection in previously undernourished patients.


Assuntos
Cirurgia Bariátrica , Desnutrição Proteico-Calórica/complicações , Infecções Estreptocócicas/complicações , Adulto , Deficiência de Vitaminas/complicações , Deficiência de Vitaminas/terapia , Cirurgia Bariátrica/efeitos adversos , Feminino , Humanos , Nutrição Parenteral , Complicações Pós-Operatórias , Desnutrição Aguda Grave/complicações , Desnutrição Aguda Grave/etiologia , Desnutrição Aguda Grave/terapia , Cooperação e Adesão ao Tratamento
5.
Rev. Assoc. Med. Bras. (1992) ; 65(9): 1151-1155, Sept. 2019. tab, graf
Artigo em Inglês | LILACS | ID: biblio-1041071

RESUMO

SUMMARY This report describes the post-bariatric-surgery evolution of an obese patient who had low adherence to the diet and micronutrient supplementation. Four years after two bariatric surgeries, the patient was admitted due to transient loss of consciousness, slow thinking, anasarca, severe hypoalbuminemia, in addition to vitamin and mineral deficiencies. She had subcutaneous foot abscess but did not present fever. Received antibiotics, vitamins A, D, B12, thiamine, calcium, and parenteral nutrition. After hospitalization (twenty-eight days), there was a significant body weight reduction probably due to the disappearance of clinical anasarca. Parenteral nutrition was suspended after twenty-five days, and the oral diet was kept fractional. After hospitalization (weekly outpatient care), there was a gradual laboratory data improvement, which was now close to the reference values. Such outcome shows the need for specialized care in preventing and treating nutritional complications after bariatric surgeries as well as clinical manifestations of infection in previously undernourished patients.


RESUMO Este relato descreve a evolução pós-cirurgia bariátrica de uma paciente obesa que apresentou baixa adesão à dieta e suplementação de micronutrientes. Quatro anos após duas cirurgias bariátricas, a paciente foi internada por perda transitória de consciência, raciocínio lento, anasarca, hipoalbuminemia grave, além de deficiências vitamínicas e minerais. Apresentava abscesso subcutâneo no pé, mas não apresentava febre. Recebeu antibióticos, vitaminas A, D, B12, tiamina, cálcio e nutrição parenteral. Após a internação (28 dias) houve redução significativa do peso corporal, provavelmente devido ao desaparecimento clínico da anasarca. A nutrição parenteral foi suspensa após 25 dias e a dieta oral foi mantida fracionada. Após a internação (atendimento ambulatorial semanal) houve uma melhora gradativa dos dados laboratoriais, que estavam próximos dos valores de referência. Tal desfecho mostra a necessidade de cuidados especializados na prevenção e tratamento de complicações nutricionais após cirurgias bariátricas, bem como manifestações clínicas de infecção em pacientes previamente desnutridos.


Assuntos
Humanos , Feminino , Adulto , Infecções Estreptocócicas/complicações , Desnutrição Proteico-Calórica/complicações , Cirurgia Bariátrica/efeitos adversos , Complicações Pós-Operatórias , Deficiência de Vitaminas/complicações , Deficiência de Vitaminas/terapia , Nutrição Parenteral , Desnutrição Aguda Grave/complicações , Desnutrição Aguda Grave/etiologia , Desnutrição Aguda Grave/terapia , Cooperação e Adesão ao Tratamento
6.
Pediatr Rev ; 39(4): 161-179, 2018 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-29610425

RESUMO

The published literature supports the high prevalence of supplement use in children and adolescents in the United States. Pediatricians today are faced with questions from parents and patients about the benefits, safety, efficacy, and correct dose of vitamins and minerals. In this article, we review 7 vitamins with the most clinical relevance as judged by abundance in food, risks and symptoms of deficiency, and potential for toxicity. Specifically, we focus on possible clinical scenarios that can be indicative of nutritional deficiency. We synthesize and summarize guidelines from nutrition experts, various medical societies, the World Health Organization, and the American Academy of Pediatrics.


Assuntos
Deficiência de Vitaminas , Vitaminas/efeitos adversos , Adolescente , Deficiência de Vitaminas/diagnóstico , Deficiência de Vitaminas/etiologia , Deficiência de Vitaminas/terapia , Aleitamento Materno , Criança , Dieta/efeitos adversos , Dieta/métodos , Suplementos Nutricionais , Humanos , Lactente , Pediatria , Relações Profissional-Família , Recomendações Nutricionais , Medição de Risco , Fatores de Risco , Vitaminas/uso terapêutico
7.
Obes Surg ; 28(1): 234-241, 2018 01.
Artigo em Inglês | MEDLINE | ID: mdl-28861696

RESUMO

BACKGROUND: Vitamin and mineral deficiencies are a major concern after biliopancreatic diversion (BPD) and BPD with duodenal switch (BPD/DS). Evidence-based guidelines how to prevent or how to treat deficiencies in these patients are currently lacking. The aim of the current study is to give an overview of postsurgical deficiencies and how to prevent and treat these deficiencies. METHODS: Retrospective evaluation of a 1-year structured monitoring and treatment schedule for various deficiencies in 34 patients after BPD or BPD/DS. RESULTS: Patients were introduced into the program 12-90 months after surgery. Vitamin B1, B6, B9, and B12 deficiencies could be prevented by mean daily doses of 2.75 mg, 980 µg, 600 µg, and 350 µg, respectively. However, many patients continued to develop deficiencies of vitamin A, D, iron, calcium, and zinc despite major dose adjustments. Current observations suggest that at least total daily doses of 200 mg Fe in premenopausal women and 100 mg in men, 100 mg of Zinc, 3000 mg of calcium, and weekly doses of at least 50,000 IU solubilized vitamin A and vitamin D are needed to prevent the occurrence of major deficiencies. CONCLUSION: Exceptionally high supplementation doses are needed to prevent and treat vitamin and mineral deficiencies in patients after BPD or BPD/DS. Further refinement and simplification of treatment schedules is needed. Focus on improvement of compliance to treatment is recommended.


Assuntos
Desvio Biliopancreático/efeitos adversos , Desnutrição/etiologia , Desnutrição/terapia , Minerais/metabolismo , Obesidade Mórbida/cirurgia , Adulto , Anastomose Cirúrgica/efeitos adversos , Anastomose Cirúrgica/métodos , Deficiência de Vitaminas/etiologia , Deficiência de Vitaminas/metabolismo , Deficiência de Vitaminas/terapia , Desvio Biliopancreático/métodos , Deficiências Nutricionais/etiologia , Deficiências Nutricionais/terapia , Duodeno/cirurgia , Feminino , Seguimentos , Humanos , Masculino , Desnutrição/metabolismo , Pessoa de Meia-Idade , Estudos Retrospectivos
8.
J Clin Gastroenterol ; 51(10): 878-889, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-28858940

RESUMO

BACKGROUND: Vitamin deficiency is frequently associated with inflammatory bowel disease (IBD). Supplementation of vitamins could thus serve as an adjunctive therapy. The present meta-analysis reviews the deficiencies and alterations in serum fat-soluble vitamins (A, D, E, and K) reported in IBD patients. MATERIALS AND METHODS: PubMed database search was performed to identify all primary studies up to January 2015 that evaluated the serum concentrations of fat-soluble vitamin levels in IBD patients compared with healthy individuals. We estimated pooled mean differences between groups and estimated their relations with some compounding variables (age, disease duration, C-reactive protein, albumin), using a meta-regression analysis. RESULTS: Nineteen case-control studies met selection criteria. In patients with Crohn's disease (CD), vitamin A, D, E, K status was lower than in controls [D=212 µg/L.92; 95% confidence interval (CI), 95.36-330.48 µg/L, P=0.0002; D=6.97 nmol/L, 95% CI, 1.61-12.32 nmol/L, P=0.01; D=4.72 µmol/L, 95% CI, 1.60-7.84 µmol/L, P=0.003; D=1.46 ng/mL, 95% CI, 0.48-2.43 ng/mL, P=0.003, respectively]. Patients with ulcerative colitis had lower levels of vitamin A than controls (D=223.22 µg/L, 95% CI, 44.32-402.12 µg/L, P=0.01). Patients suffering from CD for a longer time had lower levels of vitamins A (95% CI=7.1-67.58 y, P=0.02) and K (95% CI, 0.09-0.71 y, P=0.02). Meta-regression analysis demonstrated statistically significant associations between the levels of inflammatory biomarkers: C-reactive protein (P=0.03, 95% CI, -9.74 to -0.6 mgl/L) and albumin (P=0.0003, 95% CI, 402.76-1361.98 g/dL), and vitamin A status in CD patients. CONCLUSION: Our meta-analysis shows that the levels of fat-soluble vitamins are generally lower in patients with inflammatory bowel diseases and their supplementation is undoubtedly indicated.


Assuntos
Deficiência de Vitaminas/complicações , Colite Ulcerativa/etiologia , Doença de Crohn/etiologia , Deficiência de Vitaminas/terapia , Colite Ulcerativa/sangue , Colite Ulcerativa/terapia , Doença de Crohn/sangue , Doença de Crohn/terapia , Humanos , Vitamina A/administração & dosagem , Vitamina A/sangue , Vitamina D/administração & dosagem , Vitamina D/sangue , Vitamina E/administração & dosagem , Vitamina E/sangue , Vitamina K/administração & dosagem , Vitamina K/sangue
10.
Obes Surg ; 26(10): 2324-30, 2016 10.
Artigo em Inglês | MEDLINE | ID: mdl-26843085

RESUMO

INTRODUCTION: After all bariatric procedures, multivitamin supplements are uniformly prescribed to minimize eventual deficiencies. These supplements are usually maintained long time, even during the whole life after malabsorptive techniques, while these are maintained at least during 1 year after restrictive procedures. Given that sleeve gastrectomy does not alter intestinal absorption, the supplements are possibly unnecessary, once the patient can take an adequate diet. PATIENTS AND METHODS: A prospective randomized study of patients undergoing a laparoscopic sleeve gastrectomy was performed. Patients were randomized into two groups: those patients receiving the multivitamin supplement (Multicentrum, Pfizer, 1 tablet/day) during 3 months (group 1) and those receiving the supplement during 12 months (group 2). Laboratory data were recorded: vitamins (D, B12 and folic acid) and oligoelements (calcium, iron, phosphorus, magnesium and zinc) at 3, 6 and 12 months after surgery. RESULTS: Eighty patients were included, 40 in each group. At 3 months, 7.5 % of the patients presented iron deficiency and 2.5 % ferritin one, similarly in both groups, that was corrected with specific extra iron supplements. At 6 months, one patient (2.5 %) in group 1 presented iron deficiency and one in group 2 vitamin D deficiency (NS). At 12 months, only one patient in group 2 presented vitamin D deficiency, treated with specific supplements. CONCLUSION: The maintenance of multivitamin supplements more than 3 months postoperatively seems to be of no benefit. It is preferable monitoring laboratory values and adding specific supplements when necessary. CLINICALTRIALS. GOV IDENTIFIER: NCT02620137.


Assuntos
Deficiência de Vitaminas/terapia , Suplementos Nutricionais , Gastrectomia/efeitos adversos , Obesidade Mórbida/cirurgia , Vitaminas/administração & dosagem , Adulto , Deficiência de Vitaminas/sangue , Deficiência de Vitaminas/etiologia , Deficiência de Vitaminas/prevenção & controle , Dieta , Feminino , Gastrectomia/métodos , Humanos , Masculino , Pessoa de Meia-Idade , Obesidade Mórbida/sangue , Estudos Prospectivos
11.
Bol Asoc Med P R ; 107(2): 60-6, 2015.
Artigo em Espanhol | MEDLINE | ID: mdl-26434086

RESUMO

Human development and its physiology depends on a number of complex biochemical body processes, many of which are interactive and codependent. The speed and the degree in which many physiological reactions are completed depend on enzyme activity, which in turn depends on the bioavailability of co-factors and micronutrients such as vitamins and minerals. To achieve a healthy physiological state, organism need that biochemical reactions occur in a controlled and specific way at a particular speed and level or grade fully completed. To achieve this, is required an optimal metabolic balance. Factors such as, a particular genetic composition, inadequate dietary consumption patterns, traumas, diseases, toxins and environmental stress all of these factors rising demands for nutrients in order to obtain optimal metabolic balance. Metabolic correction is a biochemical and physiological concept that explains how improvements in cellular biochemistry of an organism can help the body achieve metabolic and physiological optimization. We summarize the contribution of several pioneers in understanding the role of micronutrients in health management. The concept of metabolic correction is becoming a significant term due to the presence of genetic variants that affect the speed of reactions of enzymes, causing metabolic alterations that enhance or promote the state/development of multiple diseases. Decline in the nutritional value of the food we eat, the increase in demand for certain nutrients caused by normal development, diseases and medications induce, usually, nutrients consumption. These nutritional deficiencies and insufficiencies are causing massive economic costs due to increased morbidity and mortality in our society. In summary, metabolic correction improves the enzymatic function, which favors the physiological normal functions, thus, contributing to improving health and the welfare of the human being. The purpose of this paper is to describe and introduce the concept of optimal metabolic correction as a functional cost-effective mechanism against disease, in addition, to contribute to diseases prevention and regeneration of the body and health.


Assuntos
Micronutrientes/fisiologia , Prevenção Primária/métodos , Deficiência de Vitaminas/complicações , Deficiência de Vitaminas/terapia , Coenzimas/deficiência , Coenzimas/fisiologia , Coenzimas/uso terapêutico , Dano ao DNA , Suplementos Nutricionais , Metabolismo Energético , Enzimas/fisiologia , Comportamento Alimentar , Humanos , Desnutrição/complicações , Desnutrição/terapia , Micronutrientes/deficiência , Micronutrientes/uso terapêutico , Minerais/uso terapêutico , Modelos Biológicos , Necessidades Nutricionais , Medicina de Precisão , Estados Unidos , Vitaminas/uso terapêutico
12.
Clin Geriatr Med ; 31(3): 355-66, 2015 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-26195095

RESUMO

Vitamin supplementation is fairly common among the elderly. Supplements are often used to prevent disease and improve health. In the United States, the use of dietary supplements has continued to increase over the last 30 years, and more than half of adults report using one or more dietary supplements. Epidemiologic evidence suggests that a diet rich in fruits and vegetables does have a protective effect on health. However, clinical trials on the use of vitamin supplements for promotion of health and prevention of disease have failed to demonstrate the strong associations seen in observational studies.


Assuntos
Envelhecimento/fisiologia , Deficiência de Vitaminas , Insuficiência de Crescimento/prevenção & controle , Vitaminas , Idoso , Antioxidantes/metabolismo , Deficiência de Vitaminas/complicações , Deficiência de Vitaminas/metabolismo , Deficiência de Vitaminas/fisiopatologia , Deficiência de Vitaminas/terapia , Suplementos Nutricionais , Insuficiência de Crescimento/etiologia , Insuficiência de Crescimento/fisiopatologia , Humanos , Vitaminas/metabolismo , Vitaminas/farmacologia
14.
Nutr Hosp ; 29 Suppl 2: 47-56, 2014.
Artigo em Espanhol | MEDLINE | ID: mdl-25077345

RESUMO

Clinical manifestations accompanying neurological diseases are diverse and affect multiple organs. Nutritional status of patients with certain neurological diseases such as stroke, Alzheimer's disease, Parkinson's disease, Epilepsy and Multiple Sclerosis can be altered because of symptoms associated with disease course, including certain micronutrient deficiency (folic acid, zinc, vitamin B6 and B12, vitamin D, vitamin E and vitamin C), changes in energy expenditure, intake decreased, gastrointestinal disorders and dysfunction of the bone mass. Also, we have to take in account other factors as: advanced age, multiple co morbidities, polypharmacy, the use of herbal products, social habits, diet and pharmacological treatments effect. An assessment of the factors related to neurological treatment that cause alterations in metabolic and nutritional status was performed: side effects of anti-Parkinson drugs, antiepileptic drugs, and multiple sclerosis drugs; drug-nutrient interactions; and nutrient-drug interactions.


Assuntos
Doenças do Sistema Nervoso/tratamento farmacológico , Estado Nutricional , Deficiência de Vitaminas/complicações , Deficiência de Vitaminas/terapia , Interações Medicamentosas , Humanos , Doenças do Sistema Nervoso/complicações
15.
Gastroenterol. latinoam ; 25(supl.1): S70-S73, 2014.
Artigo em Espanhol | LILACS | ID: lil-766746

RESUMO

Bariatric surgery is an effective treatment to reduce obesity by means of procedures aimed at restricting food intake and /or malabsorption. All procedures cause anatomic and functional changes that alter digestive physiology and reduce macro and micronutrients bioavailability. In the long run, surgical, metabolic and nutritional complications might occur. Anemia, vitamins and minerals deficiency are more frequent with malabsorption techniques, but they may also occur with restrictive techniques. Vitamin deficiency can cause neurological, hematologic and bone disorders, some of them with severe clinical manifestation. After bariatric surgery it is recommended to prescribe specific nutritional supplements and control patients periodically for prevention, early diagnosis and treatment of any complications.


La cirugía bariátrica es un efectivo tratamiento para reducir la obesidad mediante técnicas que sólo restringen la ingesta de alimentos y otras que además disminuyen la absorción intestinal. Todos los procedimientos causan cambios anatómicos y funcionales que alteran la fisiología digestiva y disminuyen la biodisponibilidad de macro y micronutrientes. En el largo plazo, pueden ocurrir complicaciones quirúrgicas, metabólicas y nutricionales, entre las que destacan anemia, deficiencia de vitaminas y minerales que son más frecuentes con las técnicas de mala absorción, pero también pueden ocurrir con técnicas restrictivas. La deficiencia de vitaminas produce alteraciones neurológicas, hematológicas y óseas que en algunos casos pueden ser severas. Después de la cirugía bariátrica se recomienda la administración de suplementos nutricionales específicos y controlar periódicamente a los pacientes para prevención, diagnóstico y tratamiento precoz de eventuales complicaciones.


Assuntos
Humanos , Cirurgia Bariátrica/efeitos adversos , Obesidade/cirurgia , Deficiência de Vitaminas/etiologia , Deficiência de Vitaminas/terapia , Ferro/uso terapêutico , Hipoglicemia/etiologia , Hipoglicemia/tratamento farmacológico , Complicações Pós-Operatórias , /uso terapêutico , Vitamina D/uso terapêutico
16.
Rev Prat ; 63(8): 1060-9, 2013 Oct.
Artigo em Francês | MEDLINE | ID: mdl-24298822

RESUMO

In industrialized countries, the major vitamin deficiency syndromes have virtually disappeared. Today they are superseded by marginal deficits, characterized by insufficient vitamins reserves to maintain normal physiologic state. These states strike populations such as infants, pregnant women, alcoholics and the elderly, and may have long-term adverse effects on health. This assumption stems from the analysis of studies that show an increase in the incidence of various diseases such as cancers and cardiovascular, ocular and osteoarticular pathologies in subjects with low vitamin status. Although causal relationships are difficult to establish, a huge scope for public health appears to be open for vitamins, substituting the notion of minimal intake, indispensable to prevent signs of deficiency, to that ensuring optimal health in the medium and long-terms. However, the paradoxical character of the results obtained in several randomized trials should prompt caution in the use of vitamin supplements to prevent chronic diseases.


Assuntos
Vitaminas/administração & dosagem , Vitaminas/fisiologia , Idoso , Idoso de 80 Anos ou mais , Deficiência de Vitaminas/diagnóstico , Deficiência de Vitaminas/terapia , Suplementos Nutricionais/efeitos adversos , Feminino , Humanos , Recém-Nascido , Gravidez , Prática Profissional
17.
Med Monatsschr Pharm ; 36(7): 252-66; quiz 267-8, 2013 Jul.
Artigo em Alemão | MEDLINE | ID: mdl-23898603

RESUMO

Pregnant women are at greater risk of an insufficient vitamin and mineral supply. Based on hemodynamic, endocrine and metabolic changes due to pregnancy, the body weight and blood volume increase. These changes result in an increased requirement of most vitamins and minerals while the energy requirement increases by about 10%. Besides iodine (recommended intake as supplement 150 microg/d), iron (recommended intake 30-40 mg/d), vitamin D (recommended intake as supplement 20-50 microg/d), and docosahexaenoic acid (recommended intake 200 mg/d), folic acid is one of the critical micronutrients during pregnancy. Food folate and synthetic folic acid differ in their bioavailability. About 50% of the food folate is absorbed whereas almost 100% of folic acid from supplements is bioavailable. The contents are thus indicated as folate equivalents. In the form ofTHF, folic acid functions as coenzyme for the transfer of C1 units in the metabolism of amino acids, purines and pyrimidines. Folic acid (isolated or in combination with other vitamins and minerals) reduces the total risk for neural tube defects by 72%. For primary prevention it is recommended that all women who are planning to become pregnant take 400-800 microg synthetic folic acid along with a diet rich in folate. The additional intake should be continued at least until the end of the first trimester. For secondary prevention of neural tube defects an intake of 4 mg/d is recommended.


Assuntos
Suplementos Nutricionais , Gravidez/fisiologia , Adulto , Deficiência de Vitaminas/terapia , Ensaios Clínicos como Assunto , Estudos de Coortes , Suplementos Nutricionais/efeitos adversos , Feminino , Deficiência de Ácido Fólico/prevenção & controle , Deficiência de Ácido Fólico/terapia , Humanos , Minerais , Necessidades Nutricionais , População , Complicações na Gravidez/terapia , Vitaminas/uso terapêutico
18.
Am J Clin Oncol ; 36(6): 637-43, 2013 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-22237148

RESUMO

Concurrent chemotherapy and radiotherapy (chemoradiotherapy) for the management of pancreatic adenocarcinoma in either adjuvant or locally regional advanced settings produces predictable acute toxicities that are proportional in severity to the intensity and type of systemic therapy and to the parameters of radiotherapy. In addition, relevant to the adjuvant setting, surgery for pancreatic cancer often produces physiologic alterations that may impact a patient's ability to tolerate chemoradiotherapy. Failures to anticipate, monitor, and proactively manage the effects of surgery and toxicities of chemoradiotherapy can result in the need for unplanned treatment interruptions and/or inability to complete all planned therapy. In this review, complications of pancreatic cancer itself and of pancreatic resection as well as toxicities of chemoradiotherapy are delineated, and approaches to their management before, during, and after chemoradiotherapy are presented. Planning for the treatment of side effects before the anticancer therapy begins facilitates therapy administration and improves patient tolerance.


Assuntos
Adenocarcinoma/terapia , Quimiorradioterapia/métodos , Neoplasias Pancreáticas/terapia , Adenocarcinoma/patologia , Adenocarcinoma/cirurgia , Anorexia/etiologia , Anorexia/terapia , Antineoplásicos/efeitos adversos , Antineoplásicos/uso terapêutico , Deficiência de Vitaminas/etiologia , Deficiência de Vitaminas/terapia , Quimiorradioterapia/efeitos adversos , Depressão/etiologia , Depressão/terapia , Diarreia/etiologia , Diarreia/terapia , Síndrome de Esvaziamento Rápido/etiologia , Síndrome de Esvaziamento Rápido/terapia , Humanos , Neoplasias Pancreáticas/patologia , Neoplasias Pancreáticas/cirurgia
20.
Int J Eat Disord ; 44(3): 281-3, 2011 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-20186722

RESUMO

OBJECTIVE: To report a case of severe reversible vision loss in a woman with a 7-year history of anorexia nervosa, purging type, alcohol abuse and a severely restricted, vitamin-deficient diet. METHOD: Psychiatric, ophthalmologic, and medical records were reviewed, and a literature search was performed on visual complications associated with anorexia nervosa and malnutrition. DISCUSSION: Ophthalmologic complications of malnutrition are rare but include both oculomotor and visual sensory disturbances. Thiamine deficiency can cause both types of disorders. Vitamin B12 and folate deficiencies are typically associated with optic neuropathy. Clinicians treating eating disorders should be aware of the potential for vitamin deficiencies and associated visual loss in patients with anorexia nervosa. This case highlights the importance of a detailed dietary history to guide vitamin rehabilitation and to minimize or reverse nutritional visual loss.


Assuntos
Alcoolismo/complicações , Anorexia Nervosa/complicações , Cegueira/etiologia , Desnutrição/etiologia , Vômito/complicações , Adulto , Alcoolismo/terapia , Anorexia Nervosa/psicologia , Anorexia Nervosa/terapia , Deficiência de Vitaminas/etiologia , Deficiência de Vitaminas/terapia , Cegueira/terapia , Suplementos Nutricionais , Feminino , Humanos , Desnutrição/terapia , Psicoterapia de Grupo , Resultado do Tratamento
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