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1.
Clin Nutr ESPEN ; 58: 270-276, 2023 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-38057017

RESUMO

BACKGROUND & AIMS: Short bowel syndrome (SBS) is the leading cause of chronic intestinal failure. The duration of parenteral support (PS) and the long-term micronutrient needs in children with SBS vary, based on their clinical and anatomical characteristics. Our study aimed to review the clinical course and identify high risk patient groups for prolonged PS and long-term micronutrient supplementation. METHODS: A retrospective review was conducted on electronic medical records of children with SBS and chronic intestinal failure who were enrolled in the multidisciplinary intestinal rehabilitation program at Manchester Children's Hospital, UK. Children were included in the review if they required PN for more than 60 days out of 74 consecutive days and had at least 3 years of follow-up. Statistical analysis was performed using IBM SPSS Statistics 24.0. RESULTS: 40 children with SBS achieved enteral autonomy (EA) and 14 remained dependent on PS after 36 months of follow up. Necrotizing enterocolitis was the most common cause for intestinal resection (38.9%) followed by gastroschisis (22.2%), malrotation with volvulus (20.4%), segmental volvulus (9.3%) and long segment Hirschsprung disease (1.9%). Those who achieved EA had significantly longer intestinal length 27.5% (15.0-39.3) than those who remained on PS 6.0% (1.5-12.5) (p < 0.001). Type I SBS was only found in the PS cohort. Median PN dependence was 10.82 months [IQR 5.73-20.78]. Congenital diagnosis was associated with longer PN dependence (21.0 ± 20.0) than acquired (8.7 ± 7.8 months), (p = 0.02). The need for micronutrient supplementation was assessed after the transition to EA; 87.5% children had at least one micronutrient depletion, most commonly Vitamin D (64.1%), followed by iron (48.7%), Vitamin B12 (34.2%), and vitamin E (28.6%). Iron deficiency and vitamin A depletion were correlated with longer PS after multivariate analysis (OR: 1.103, 1.006-1.210, p = 0.037 and OR: 1.048, 0.998-1.102, p = 0.062 respectively). CONCLUSION: In our cohort, small bowel length was the main predictor for EA. Children on longer PS, had more often a congenital cause of resection and were at risk for micronutrient deficiencies in EA.


Assuntos
Insuficiência Intestinal , Micronutrientes , Nutrição Parenteral , Síndrome do Intestino Curto , Oligoelementos , Criança , Humanos , Recém-Nascido , Enteropatias/etiologia , Enteropatias/terapia , Insuficiência Intestinal/etiologia , Insuficiência Intestinal/terapia , Volvo Intestinal/complicações , Micronutrientes/administração & dosagem , Micronutrientes/deficiência , Micronutrientes/uso terapêutico , Estudos Retrospectivos , Síndrome do Intestino Curto/etiologia , Síndrome do Intestino Curto/terapia , Oligoelementos/administração & dosagem , Oligoelementos/deficiência , Oligoelementos/uso terapêutico , Nutrição Parenteral/métodos
2.
Arch Gynecol Obstet ; 308(4): 1165-1173, 2023 10.
Artigo em Inglês | MEDLINE | ID: mdl-36107229

RESUMO

PURPOSE: To compare the efficacy of intravenous (IV) iron (ferric derisomaltose) with oral iron (ferrous fumarate) in women 14-21 weeks pregnant with persistent iron deficiency (ferritin < 30 µg/L). METHODS: In a single-centre, open-label, randomised controlled trial at a Danish hospital, women with persistent iron deficiency after routine oral iron treatment were allocated to receive 1000 mg IV iron (single-dose) or 100 mg elemental oral iron daily. Outcomes were assessed during an 18-week follow-up period. The primary endpoint was the proportion of non-anaemic (haemoglobin [Hb] ≥ 11 g/dL) women throughout follow-up. Other outcomes included changes in haematological parameters, patient-reported fatigue, and quality of life (QoL). Safety was assessed by recording adverse events. RESULTS: From July 2017 to February 2020, 100 women were randomised to IV iron and 101 to oral iron. Throughout follow-up, 91% of women were non-anaemic in the IV iron group compared with 73% in the oral iron group (18% difference [95% confidence interval 0.10-0.25]; p < 0.001). The mean Hb increase was significantly greater with IV iron versus oral iron at Weeks 6 (0.4 versus - 0.2 g/dL; p < 0.001), 12 (0.5 versus 0.1 g/dL; p < 0.001), and 18 (0.8 versus 0.5 g/dL; p = 0.01). Improvements in fatigue and QoL were greater with IV iron versus oral iron at Weeks 3 and 6. The incidence of treatment-related adverse events was comparable between treatment groups. CONCLUSION: IV iron was superior in preventing anaemia compared with oral iron in pregnant women with persistent iron deficiency; biochemical superiority was accompanied by improved fatigue and QoL. CLINICAL TRIAL REGISTRATION: European Clinical Trials Database: EudraCT no.: 2017-000776-29 (3 May 2017); ClinicalTrials.gov: NCT03188445 (13 June 2017). The trial protocol has been published: https://dx.doi.org/10.1186%2Fs13063-020-04637-z .


Assuntos
Anemia Ferropriva , Compostos Férricos , Oligoelementos , Humanos , Feminino , Gravidez , Compostos Férricos/administração & dosagem , Compostos Férricos/uso terapêutico , Anemia Ferropriva/tratamento farmacológico , Administração Oral , Administração Intravenosa , Oligoelementos/administração & dosagem , Oligoelementos/uso terapêutico , Segundo Trimestre da Gravidez , Dinamarca , Resultado do Tratamento , Adulto
3.
Animal ; 16(8): 100598, 2022 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-35952480

RESUMO

Currently, the authorisation procedure of trace elements as feed additives in the European Union according to Regulation (EC) No. 1831/2003 does not consider the bioavailability of trace element sources. This manuscript provides framework conditions for in vivo experiments that aim to estimate differences in the relative bioavailability between supplements of essential trace elements. Framework conditions encompass necessary technical information on the test substance, the experimental design and diet composition as well as the suitability of status parameters that allow for relative comparisons of regression variables. This manuscript evolves recommendations for researchers to conduct solid and reliable experiments on the matter as well as decision makers to interpret the value of studies submitted with authorisation applications regarding a certain trace element supplement.


Assuntos
Animais Domésticos/metabolismo , Dieta/veterinária , Oligoelementos/metabolismo , Animais , Disponibilidade Biológica , Suplementos Nutricionais , União Europeia , Legislação sobre Alimentos , Oligoelementos/administração & dosagem , Oligoelementos/normas
4.
Nutrients ; 14(2)2022 Jan 14.
Artigo em Inglês | MEDLINE | ID: mdl-35057521

RESUMO

This study aimed to assess current evidence regarding the effect of selenium (Se) supplementation on the prognosis in patients sustaining trauma. MEDLINE, Embase, and Web of Science databases were searched with the following terms: "trace element", "selenium", "copper", "zinc", "injury", and "trauma". Seven studies were included in the meta-analysis. The pooled results showed that Se supplementation was associated with a lower mortality rate (OR 0.733, 95% CI: 0.586, 0.918, p = 0.007; heterogeneity, I2 = 0%). Regarding the incidence of infectious complications, there was no statistically significant benefit after analyzing the four studies (OR 0.942, 95% CI: 0.695, 1.277, p = 0.702; heterogeneity, I2 = 14.343%). The patients with Se supplementation had a reduced ICU length of stay (standard difference in means (SMD): -0.324, 95% CI: -0.382, -0.265, p < 0.001; heterogeneity, I2 = 0%) and lesser hospital length of stay (SMD: -0.243, 95% CI: -0.474, -0.012, p < 0.001; heterogeneity, I2 = 45.496%). Se supplementation after trauma confers positive effects in decreasing the mortality and length of ICU and hospital stay.


Assuntos
Suplementos Nutricionais , Selênio/administração & dosagem , Oligoelementos/administração & dosagem , Ferimentos e Lesões/mortalidade , Ferimentos e Lesões/terapia , Adulto , Ensaios Clínicos como Assunto , Cuidados Críticos/estatística & dados numéricos , Resultados de Cuidados Críticos , Feminino , Humanos , Unidades de Terapia Intensiva/estatística & dados numéricos , Tempo de Internação , Masculino , Pessoa de Meia-Idade , Prognóstico , Resultado do Tratamento
5.
Nutrients ; 14(2)2022 Jan 15.
Artigo em Inglês | MEDLINE | ID: mdl-35057548

RESUMO

Maternal dietary micronutrients and omega-3 fatty acids support development of the fetal and neonatal immune system. Whether supplementation is similarly beneficial for the mother during gestation has received limited attention. A scoping review of human trials was conducted looking for evidence of biochemical, genomic, and clinical effects of supplementation on the maternal immune system. The authors explored the literature on PubMed, Cochrane Library, and Web of Science databases from 2010 to the present day using PRISMA-ScR methodology. Full-length human trials in English were searched for using general terms and vitamin A, B12, C, D, and E; choline; iodine; iron; selenium; zinc; and docosahexaenoic/eicosapentaenoic acid. Of 1391 unique articles, 36 were eligible for inclusion. Diverse biochemical and epigenomic effects of supplementation were identified that may influence innate and adaptive immunity. Possible clinical benefits were encountered in malaria, HIV infections, anemia, Type 1 diabetes mellitus, and preventing preterm delivery. Only limited publications were identified that directly explored maternal immunity in pregnancy and the effects of micronutrients. None provided a holistic perspective. It is concluded that supplementation may influence biochemical aspects of the maternal immune response and some clinical outcomes, but the evidence from this review is not sufficient to justify changes to current guidelines.


Assuntos
Ácidos Graxos Ômega-3/administração & dosagem , Sistema Imunitário/efeitos dos fármacos , Saúde Materna , Micronutrientes/administração & dosagem , Fenômenos Fisiológicos da Nutrição Pré-Natal , Adulto , Anemia/imunologia , Colina/administração & dosagem , Diabetes Mellitus Tipo 1/imunologia , Suplementos Nutricionais , Feminino , Infecções por HIV/imunologia , Humanos , Iodo/administração & dosagem , Ferro/administração & dosagem , Mães , Gravidez , Selênio/administração & dosagem , Oligoelementos/administração & dosagem , Vitaminas/administração & dosagem , Zinco/administração & dosagem
6.
Behav Brain Res ; 419: 113701, 2022 02 15.
Artigo em Inglês | MEDLINE | ID: mdl-34863808

RESUMO

Exposure to the metal vanadium, in both animals and humans has been linked to various physiological consequences including respiratory and gastrointestinal conditions. Research on the neurobehavioral effects of vanadium exposure is limited. Hence, the purpose of the current study was to examine the effects of chronic low-dose vanadium administration (0.04 mg/week) on the behavior of young male rats. Four weeks following the administration of vanadium, rats were tested on the open field, object recognition, and Morris Water maze tasks. Vanadium did not affect exploration, locomotion, or anxiety-like behavior as measured by the open field task. Vanadium administration affected novel object recognition performance. Intriguingly, rats exposed to vanadium exhibited lower latency times on day 2 of the Morris Water maze. These findings suggest that vanadium's behavioral effects are complex and warrant further investigation to better understand the potential benefits and consequences of its exposure.


Assuntos
Comportamento Animal/efeitos dos fármacos , Aprendizagem/efeitos dos fármacos , Locomoção/efeitos dos fármacos , Oligoelementos/farmacologia , Vanádio/farmacologia , Fatores Etários , Animais , Masculino , Ratos , Ratos Sprague-Dawley , Oligoelementos/administração & dosagem , Vanádio/administração & dosagem
7.
J Clin Endocrinol Metab ; 107(2): e815-e824, 2022 01 18.
Artigo em Inglês | MEDLINE | ID: mdl-34448874

RESUMO

AIMS: We aimed to investigate the relationship of dietary zinc intake with new-onset diabetes among Chinese adults. MATERIALS AND METHODS: A total of 16 257 participants who were free of diabetes at baseline from the China Health and Nutrition Survey were included. Dietary intake was measured by 3 consecutive 24-hour dietary recalls combined with a household food inventory. Participants with self-reported physician-diagnosed diabetes, or fasting glucose ≥ 7.0 mmol/L, or glycated hemoglobin ≥ 6.5% during the follow-up were defined as having new-onset diabetes. RESULTS: A total of 1097 participants developed new-onset diabetes during a median follow-up duration of 9.0 years. Overall, the association between dietary zinc intake and new-onset diabetes followed a U-shape (P for nonlinearity < 0.001). The risk of new-onset diabetes was significantly lower in participants with zinc intake < 9.1 mg/day (per mg/day: hazard ratio [HR], 0.73; 95% CI, 0.60-0.88), and higher in those with zinc intake ≥ 9.1 mg/day (per mg/day: HR, 1.10; 95% CI, 1.07-1.13). Consistently, when dietary zinc intake was assessed as deciles, compared with those in deciles 2-8 (8.9 -<12.2 mg/day), the risk of new-onset diabetes was higher for decile 1 (<8.9 mg/day: HR, 1.29; 95% CI, 1.04-1.62), and deciles 9 to 10 (≥12.2 mg/day: HR, 1.62; 95% CI, 1.38-1.90). Similar U-shaped relations were found for plant-derived or animal-derived zinc intake with new-onset diabetes (all P for nonlinearity < 0.001). CONCLUSIONS: There was a U-shaped association between dietary zinc intake and new-onset diabetes in general Chinese adults, with an inflection point at about 9.1 mg/day.


Assuntos
Diabetes Mellitus/epidemiologia , Inquéritos sobre Dietas/estatística & dados numéricos , Oligoelementos/administração & dosagem , Zinco/administração & dosagem , Adulto , China/epidemiologia , Diabetes Mellitus/diagnóstico , Diabetes Mellitus/prevenção & controle , Feminino , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Fatores de Proteção , Fatores de Risco , Autorrelato/estatística & dados numéricos , Oligoelementos/efeitos adversos , Zinco/efeitos adversos
8.
J Acad Nutr Diet ; 122(3): 525-532, 2022 03.
Artigo em Inglês | MEDLINE | ID: mdl-34687947

RESUMO

BACKGROUND: Nearly a third of young US children take multivitamin/mineral (MVM) dietary supplements, yet it is unclear how formulations compare with requirements. OBJECTIVE: Describe the number and amounts of micronutrients contained in MVMs for young children and compare suggested amounts on product labels to micronutrient requirements. DESIGN: Cross-sectional. SETTING: All 288 MVMs on the market in the United States in the National Institutes of Health's Dietary Supplement Label Database in 2018 labeled for children 1 to <4 years old. MAIN OUTCOME MEASURES: Number of MVM products and amounts per day of micronutrients in each product suggested on labels compared with requirements represented by age-appropriate Daily Values (DV). Micronutrients of public health concern identified by the Dietary Guidelines for Americans (DGA) 2015-2020 (DGA 2015) and DGA 2020-2025 (DGA 2020) or those of concern for exceeding the upper tolerable intake levels. STATISTICAL ANALYSES: Number of products and percent DV per day provided by each micronutrient in each product. RESULTS: The 288 MVMs contained a mean of 10.1 ± 2.27 vitamins and 4.59 ± 2.27 minerals. The most common were, in rank order, vitamins C, A, D, E, B6, B12; zinc, biotin, pantothenic acid, iodine, and folic acid. For micronutrients denoted by the DGA 2015 and DGA 2020 of public health concern, 56% of the 281 products containing vitamin D, 4% of the 144 with calcium, and none of the 60 containing potassium provided at least half of the DV. The upper tolerable intake level was exceeded by 49% of 197 products with folic acid, 17% of 283 with vitamin A, and 14% of 264 with zinc. Most MVMs contained many of 16 other vitamins and minerals identified in national surveys as already abundant in children's diets. CONCLUSIONS: A reexamination of the amounts and types of micronutrients in MVMs might consider formulations that better fill critical gaps in intakes and avoid excess.


Assuntos
Suplementos Nutricionais , Micronutrientes/administração & dosagem , Necessidades Nutricionais , Oligoelementos/administração & dosagem , Vitaminas/administração & dosagem , Pré-Escolar , Estudos Transversais , Bases de Dados como Assunto , Rotulagem de Alimentos , Humanos , Lactente , Política Nutricional , Estado Nutricional , Recomendações Nutricionais , Estados Unidos
9.
J Clin Endocrinol Metab ; 107(2): e604-e611, 2022 01 18.
Artigo em Inglês | MEDLINE | ID: mdl-34534327

RESUMO

CONTEXT: No consensus exists about the optimal duration of the low-iodine diet (LID) in the preparation of 131I therapy in differentiated thyroid cancer (DTC) patients. OBJECTIVE: This work aimed to investigate if a LID of 4 days is enough to achieve adequate iodine depletion in preparation for 131I therapy. In addition, the nutritional status of the LID was evaluated. METHODS: In this prospective study, 65 DTC patients treated at 2 university medical centers were included between 2018 and 2021. The patients collected 24-hour urine on days 4 and 7 of the LID and kept a food diary before and during the LID. The primary outcome was the difference between the 24-hour urinary iodine excretion (UIE) on both days. RESULTS: The median 24-hour UIE on days 4 and 7 of the LID were not significantly different (36.1 mcg [interquartile range, 25.4-51.2 mcg] and 36.5 mcg [interquartile range, 23.9-47.7 mcg], respectively, P = .43). On day 4 of the LID, 72.1% of the DTC patients were adequately prepared (24-hour UIE < 50 mcg), and 82.0% of the DTC patients on day 7 (P = .18). Compared to the self-reported regular diet, DTC patients showed a significantly (P < .01) lower percentage of nutrient intake (calories, protein, calcium, iodine, and water) during the LID. CONCLUSION: The 24-hour UIE on day 4 of the LID did not differ from day 7, and therefore shortening the LID from 7 to 4 days seems justified to prepare DTC patients for 131I therapy in areas with sufficient iodine intake and may be beneficial to maintain a sufficient nutritional intake during DTC treatment.


Assuntos
Dieta , Radioisótopos do Iodo/administração & dosagem , Iodo/administração & dosagem , Neoplasias da Glândula Tireoide/radioterapia , Oligoelementos/administração & dosagem , Adulto , Idoso , Registros de Dieta , Feminino , Humanos , Iodo/urina , Masculino , Pessoa de Meia-Idade , Estado Nutricional , Estudos Prospectivos , Neoplasias da Glândula Tireoide/urina , Oligoelementos/urina
10.
Braz. arch. biol. technol ; 65: e22200702, 2022. tab, graf
Artigo em Inglês | LILACS | ID: biblio-1364476

RESUMO

Abstract: Boron is one of the most important micronutrients for plants. Plants may suffer from deficiency or with boron toxicity. Boron plays a role in significant physiological and biochemical events in plants such as synthesis of the cell wall, membrane integrity, antioxidation, transport of photosynthesis products to other organs of the plant. The enzyme activities of ascorbate peroxidase (APX), catalase (CAT), glutathione reductase (GR) and superoxide dismutase (SOD) in three different safflower cultivars (Balcı, Dinçer and Remzibey) subjected to different boric acid concentrations (0, 5, 10, 15 mM) were measured spectrophotometrically, and the changes in the expression levels of the genes that encode these enzymes were obtained by quantitative RT-qPCR. When both the spectrophotometric measurements and the mRNA values were evaluated together, both the activity and mRNA values of APX and GR enzymes were found to be the highest in the Dinçer cultivar among the varieties treated with 15 mM boric acid, while the lowest values of these enzymes were determined in the Remzibey cultivar. According to the RT-qPCR results, the lowest SOD and CAT values were determined in Remzibey. The Dinçer cultivar was found to have the highest antioxidant capacity (APX, GR) to cope with oxidative stress caused by boric acid application at high concentrations. The sensitive Remzibey cultivar was found to have the lowest antioxidant capacity to cope with such oxidative stress. Balcı was found to be closer to Dinçer than to Remzibey in terms of boron tolerance. As a result, the boron-sensitive cultivar had low antioxidant activity.


Assuntos
Oligoelementos/administração & dosagem , Boro/administração & dosagem , Produção Agrícola , Carthamus tinctorius/metabolismo , Antioxidantes/metabolismo , Oligoelementos/toxicidade , Boro/toxicidade , Expressão Gênica/efeitos dos fármacos , Estresse Oxidativo/efeitos dos fármacos , Carthamus tinctorius/enzimologia , Carthamus tinctorius/genética
11.
Nutrients ; 13(11)2021 Oct 25.
Artigo em Inglês | MEDLINE | ID: mdl-34836027

RESUMO

Selenium and iodine are the two central trace elements for the homeostasis of thyroid hormones but additional trace elements such as iron, zinc, and copper are also involved. To compare the primary effects of inadequate intake of selenium and iodine on the thyroid gland, as well as the target organs of thyroid hormones such as liver and kidney, mice were subjected to an eight-week dietary intervention with low versus adequate selenium and iodine supply. Analysis of trace element levels in serum, liver, and kidney demonstrated a successful intervention. Markers of the selenium status were unaffected by the iodine supply. The thyroid gland was able to maintain serum thyroxine levels even under selenium-deficient conditions, despite reduced selenoprotein expression in liver and kidney, including deiodinase type 1. Thyroid hormone target genes responded to the altered selenium and iodine supply, whereas the iron, zinc, and copper homeostasis remained unaffected. There was a notable interaction between thyroid hormones and copper, which requires further clarification. Overall, the effects of an altered selenium and iodine supply were pronounced in thyroid hormone target tissues, but not in the thyroid gland.


Assuntos
Homeostase/efeitos dos fármacos , Iodo/administração & dosagem , Selênio/administração & dosagem , Hormônios Tireóideos/metabolismo , Oligoelementos/administração & dosagem , Animais , Modelos Animais de Doenças , Iodo/deficiência , Rim/metabolismo , Fígado/metabolismo , Camundongos , Estado Nutricional , Selênio/deficiência , Selenoproteínas/metabolismo , Glândula Tireoide/metabolismo , Tiroxina/sangue , Oligoelementos/deficiência
12.
Nutrients ; 13(11)2021 Nov 06.
Artigo em Inglês | MEDLINE | ID: mdl-34836217

RESUMO

The aim of the present study was to examine differences and correlations in nutrient intakes and serum parameters related to nutrient intake (lipid profile, vitamins, and trace elements) in 200 lifelong Christian Orthodox Church (COC) fasters with periodic abstinence from certain foods (predominantly of animal origin) for approximately half of the year and 200 non-fasting controls, all of whom did not take dietary supplements. Nutrient intakes were assessed through three-day dietary recalls. Blood samples were drawn for the analysis of potential biomarkers of nutrient intake. Fasters had lower energy intake, due to lower fat and protein intake, compared to non-fasters (p < 0.05). Fasters also had lower intakes of vitamins A, B1, B2, B6, B12, D, folate, pantothenate, sodium, calcium, zinc, and phosphorus. Most participants (in both groups) did not meet the recommended dietary allowances of most vitamins and elements. Most serum biochemical parameters did not reflect the differences in nutrient intakes between groups, and none exhibited a correlation coefficient above 0.5 with nutrient intakes. Our findings suggest that COC fasting is associated with reduced intake of many nutrients, although this does not seem to have an impact on the blood biochemical profile.


Assuntos
Ingestão de Energia , Jejum , Lipídeos/sangue , Religião , Oligoelementos/sangue , Vitaminas/sangue , Adulto , Biomarcadores/sangue , Estudos Transversais , Dieta , Suplementos Nutricionais , Ingestão de Alimentos , Feminino , Humanos , Lipídeos/administração & dosagem , Masculino , Pessoa de Meia-Idade , Nutrientes/administração & dosagem , Recomendações Nutricionais , Oligoelementos/administração & dosagem , Vitaminas/administração & dosagem , Adulto Jovem
13.
Int J Mol Sci ; 22(19)2021 Sep 30.
Artigo em Inglês | MEDLINE | ID: mdl-34638987

RESUMO

Glioblastoma (GBM) is the most aggressive malignant glioma, with a very poor prognosis; as such, efforts to explore new treatments and GBM's etiology are a priority. We previously described human GBM cells (R2J-GS) as exhibiting the properties of cancer stem cells (growing in serum-free medium and proliferating into nude mice when orthotopically grafted). Sodium selenite (SS)-an in vitro attractive agent for cancer therapy against GBM-was evaluated in R2J-GS cells. To go further, we launched a preclinical study: SS was given orally, in an escalation-dose study (2.25 to 10.125 mg/kg/day, 5 days on, 2 days off, and 5 days on), to evaluate (1) the absorption of selenium in plasma and organs (brain, kidney, liver, and lung) and (2) the SS toxicity. A 6.75 mg/kg SS dose was chosen to perform a tumor regression assay, followed by MRI, in R2J-GS cells orthotopically implanted in nude mice, as this dose was nontoxic and increased brain selenium concentration. A group receiving TMZ (5 mg/kg) was led in parallel. Although not reaching statistical significance, the group of mice treated with SS showed a slower tumor growth vs. the control group (p = 0.08). No difference was observed between the TMZ and control groups. We provide new insights of the mechanisms of SS and its possible use in chemotherapy.


Assuntos
Neoplasias Encefálicas/tratamento farmacológico , Corpo Estriado/cirurgia , Glioblastoma/tratamento farmacológico , Células-Tronco Neoplásicas/transplante , Selenito de Sódio/efeitos adversos , Oligoelementos/efeitos adversos , Carga Tumoral/efeitos dos fármacos , Ensaios Antitumorais Modelo de Xenoenxerto/métodos , Animais , Apoptose/efeitos dos fármacos , Neoplasias Encefálicas/patologia , Pontos de Checagem do Ciclo Celular/efeitos dos fármacos , Linhagem Celular Tumoral , Proliferação de Células/efeitos dos fármacos , Corpo Estriado/metabolismo , Glioblastoma/patologia , Humanos , Masculino , Camundongos , Camundongos Endogâmicos BALB C , Camundongos Nus , Selênio/metabolismo , Selenito de Sódio/administração & dosagem , Temozolomida/administração & dosagem , Oligoelementos/administração & dosagem , Resultado do Tratamento
14.
Int J Mol Sci ; 22(19)2021 Sep 30.
Artigo em Inglês | MEDLINE | ID: mdl-34638991

RESUMO

Selenoproteins play important roles in many cellular functions and biochemical pathways in mammals. Our previous study showed that the deficiency of the 15 kDa selenoprotein (Selenof) significantly reduced the formation of aberrant crypt foci (ACF) in a mouse model of azoxymethane (AOM)-induced colon carcinogenesis. The objective of this study was to examine the effects of Selenof on inflammatory tumorigenesis, and whether dietary selenium modified these effects. For 20 weeks post-weaning, Selenof-knockout (KO) mice and littermate controls were fed diets that were either deficient, adequate or high in sodium selenite. Colon tumors were induced with AOM and dextran sulfate sodium. Surprisingly, KO mice had drastically fewer ACF but developed a similar number of tumors as their littermate controls. Expression of genes important in inflammatory colorectal cancer and those relevant to epithelial barrier function was assessed, in addition to structural differences via tissue histology. Our findings point to Selenof's potential role in intestinal barrier integrity and structural changes in glandular and mucin-producing goblet cells in the mucosa and submucosa, which may determine the type of tumor developing.


Assuntos
Focos de Criptas Aberrantes/dietoterapia , Focos de Criptas Aberrantes/metabolismo , Carcinogênese/efeitos dos fármacos , Neoplasias do Colo/sangue , Neoplasias do Colo/dietoterapia , Mucosa Intestinal/metabolismo , Selenoproteínas/metabolismo , Selenito de Sódio/administração & dosagem , Oligoelementos/administração & dosagem , Focos de Criptas Aberrantes/genética , Animais , Azoximetano/efeitos adversos , Carcinogênese/genética , Neoplasias do Colo/induzido quimicamente , Neoplasias do Colo/genética , Citocinas/sangue , Sulfato de Dextrana/efeitos adversos , Dieta/métodos , Modelos Animais de Doenças , Regulação Neoplásica da Expressão Gênica/efeitos dos fármacos , Mucosa Intestinal/efeitos dos fármacos , Masculino , Camundongos , Camundongos Knockout , Selenoproteínas/genética , Transdução de Sinais/efeitos dos fármacos , Transdução de Sinais/genética
15.
Nutrients ; 13(10)2021 Sep 25.
Artigo em Inglês | MEDLINE | ID: mdl-34684363

RESUMO

Food supplements (FS) are a concentrated source of vitamins, minerals, or other ingredients with nutritional or other physiological effects. Due to their easy availability, widespread advertising, and sometimes low price, increased consumption of this group of preparations has been observed. Therefore, the aim of the study was to assess the knowledge and intake of FS during the COVID-19 pandemic in Poland, with particular reference to FS containing zinc and vitamin D. It was noted that both of the above ingredients were used significantly more often by people with higher education (59.0%), with a medical background or related working in the medical field (54.5%), and/or exercising at home (60.1%). Preparations containing vitamin D were used by 22.8% of the respondents in the first wave, 37.6% in the second wave, and 32.9% in the third wave. To sum up, we showed the highest consumption of vitamin and mineral supplements, and preparations containing zinc and vitamin D were taken significantly more often by people with higher medical and related education. This indicates a high awareness of health aspects and the need for preventive measures in these groups.


Assuntos
COVID-19/imunologia , Suplementos Nutricionais/estatística & dados numéricos , Comportamentos Relacionados com a Saúde , Vitamina D/administração & dosagem , Zinco/administração & dosagem , Adulto , Feminino , Humanos , Masculino , Polônia , SARS-CoV-2 , Oligoelementos/administração & dosagem , Oligoelementos/imunologia , Vitamina D/imunologia , Vitaminas/administração & dosagem , Vitaminas/imunologia , Zinco/imunologia
16.
Reprod Biol ; 21(3): 100533, 2021 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-34280724

RESUMO

The present study aimed to determine the differential protein profile of seminal plasma proteins of bucks supplemented with trace minerals. Forty bucks of uniform size and body weight were assigned as ten groups (n = 4). The control group (T1) was fed with the control diet (concentration mixture and roughages) whereas the remaining groups were supplemented the control diet with Zn20 mg (T2), Zn40 mg (T3), Zn60 mg (T4), Cu12.5 mg (T5), Cu25 mg (T6), Cu37.5 mg (T7), Zn20 mg + Cu12.5 mg (T8), Zn40 mg + Cu25 mg (T9), and Zn60 mg + Cu37.5 mg (T10) for eight months. Seminal plasma proteins from each group were subjected to two-dimensional electrophoresis and fifteen differential proteins were selected based on differential expression, subjected to identification using Nano-LC-MS/MS (LTQ-Qrbitrap-MS). The identified proteins were Triacylglycerol lipase, EGF like repeats and discoidin domains 3, Lipocalin, Iodothyronine deiodinase, Transcription factor AP2-delta, 60S ribosomal protein L13, IST1 factor associated with ESCRT-III, Lysozyme, Uncharacterized protein (BRI3-binding protein), Uncharacterized protein, Histone deacetylase 11, General transcription factor IIF subunit 2, Nudix hydrolase 6, Protein kinase cAMP-activated catalytic subunit beta and Elongin C. The organic Cu supplemented group is the better than the organic Zn and organic Zn + Cu supplemented groups.


Assuntos
Cobre/administração & dosagem , Regulação da Expressão Gênica/efeitos dos fármacos , Cabras/fisiologia , Minerais/administração & dosagem , Zinco/administração & dosagem , Ração Animal , Fenômenos Fisiológicos da Nutrição Animal , Animais , Dieta/veterinária , Suplementos Nutricionais , Relação Dose-Resposta a Droga , Masculino , Oligoelementos/administração & dosagem
17.
Plast Reconstr Surg ; 148(1): 226-238, 2021 Jul 01.
Artigo em Inglês | MEDLINE | ID: mdl-34181622

RESUMO

BACKGROUND: The role of nutritional intervention in wound care has been a topic of controversy. Although the efficacy of macronutrient supplementation has been well described, there is a paucity of evidence and no official recommendation regarding the use of vitamins and minerals to optimize wound healing. This is the first review of vitamin and mineral wound intervention that systematically summarizes the literature using Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines and distills the evidence by wound type. METHODS: In this comprehensive review, the authors outline the nutrients and delivery methods used in the identified studies, analyze reported treatment outcomes, summarize nutrient effectiveness, and propose evidence-based conclusions to improve wound healing outcomes and enhance the consistency of nutritional intervention in wound care. RESULTS: Thirty-six studies with a combined total of 2339 patients investigated the use of oral, topical, or intravenous vitamin and/or mineral supplementation for treatment of the following wound types: burn wounds (n = 3), pressure ulcers (n = 7), diabetic ulcers (n = 4), venous ulcers (n = 7), digital ulcers (n = 1), skin incisions (n = 9), hypertrophic scars (n = 4), and sinonasal wounds (n = 1). Improved outcomes were reported in patients with burn wounds receiving vitamins A, B1, B6, B12, D, and E and zinc, calcium, copper, magnesium, selenium, and zinc; patients with pressure ulcers receiving vitamin C and zinc; patients with diabetic ulcers receiving vitamin A, B9, D, and E; patients with venous ulcers receiving zinc; and patients with hypertrophic scars receiving vitamin E. CONCLUSIONS: Based on the high-level data provided in this review, the use of specific nutritional interventions may improve the outcome of certain wound types. Further investigation is warranted to draw definitive conclusions.


Assuntos
Queimaduras/terapia , Cicatriz Hipertrófica/terapia , Apoio Nutricional/métodos , Seios Paranasais/lesões , Úlcera Cutânea/terapia , Humanos , Oligoelementos/administração & dosagem , Resultado do Tratamento , Vitaminas/administração & dosagem , Cicatrização
18.
Nutrients ; 13(6)2021 May 22.
Artigo em Inglês | MEDLINE | ID: mdl-34067320

RESUMO

Iron deficiency anemia (IDA) is a common manifestation of Inflammatory Bowel Disease (IBD). Oral iron supplements are the treatment of choice, but are not always well tolerated. Sucrosomial® iron (SI) may represent an alternative. This prospective study assessed the tolerability and effectiveness of SI, and quality of life (QoL) of IDA-IBD patients who were intolerant to oral iron salts. The study included 52 individuals treated with 1 capsule/day for 12 weeks. Tolerability was assessed through a gastrointestinal symptom severity questionnaire. Hemoglobin (Hb) levels and clinical symptoms of IDA were analyzed. QoL was assessed using IBDQ-9 and EuroQoL questionnaires. The percentage of patients with excellent/good health increased from 42.9% to 94.3%. Mean Hb concentration significantly increased at all follow-up visits (p < 0.05). Almost all participants (96.9%) were adherent to the study medication. Patients' QoL improved (IBDQ-9: from 60.9 to 65.5). Patients also improved in mobility (71.8% to 78.1%), usual activities (51.3% to 68.7%), pain/discomfort (41.0% to 53.1%), and extreme depression/anxiety problems (7.7% to 3.2%); they worsened in self-care (100% to 90.6%), but perceived an enhancement in their global health [EQ-VAS score: 61.9 (±26.1) to 66.9 (±20.3)]. SI was well tolerated and improved IDA symptoms, IBD activity, and patients' QoL. In conclusion, SI should be considered in IDA-IBD patients.


Assuntos
Anemia Ferropriva/tratamento farmacológico , Doenças Inflamatórias Intestinais/tratamento farmacológico , Ferro/administração & dosagem , Qualidade de Vida , Administração Oral , Adulto , Idoso , Idoso de 80 Anos ou mais , Anemia Ferropriva/complicações , Suplementos Nutricionais , Feminino , Compostos Férricos , Hemoglobinas/análise , Humanos , Doenças Inflamatórias Intestinais/complicações , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Inquéritos e Questionários , Oligoelementos/administração & dosagem , Resultado do Tratamento , Adulto Jovem
19.
Nutrients ; 13(4)2021 Apr 12.
Artigo em Inglês | MEDLINE | ID: mdl-33921297

RESUMO

More than one year has passed since the first cases of coronavirus disease 2019 (COVID-19) caused by severe acute respiratory syndrome (SARS)-CoV-2 coronavirus were reported in Wuhan (China), rapidly evolving into a global pandemic. This infectious disease has become a major public health challenge in the world. Unfortunately, to date, no specific antivirals have been proven to be effective against COVID-19, and although a few vaccines are available, the mortality rate is not decreasing but is still increasing. One therapeutic strategy has been focused on infection prevention and control measures. In this regard, the use of nutraceutical supports may play a role against some aspect of the infection, particularly the inflammatory state and the immune system function of patients, thus representing a strategy to control the worst outcomes of this pandemic. For this reason, we performed an overview including meta-analyses and systematic reviews to assess the association among melatonin, vitamin C, vitamin D, zinc supplementation and inflammatory markers using three databases, namely, MEDLINE, PubMed Central and the Cochrane Library of Systematic Reviews. According to the evidence available, an intake of 50,000 IU/month of vitamin D showed efficacy in CRP. An amount of 1 to 2 g per day of vitamin C demonstrated efficacy both in CRP and endothelial function, and a dosage of melatonin ranging from 5 to 25 mg /day showed good evidence of efficacy in CRP, TNF and IL6. A dose of 50 mg/day of elemental zinc supplementation showed positive results in CRP. Based on the data reported in this review, the public health system could consider whether it is possible to supplement the current limited preventive measures through targeted nutraceutical large-scale administration.


Assuntos
Ácido Ascórbico/administração & dosagem , Tratamento Farmacológico da COVID-19 , Suplementos Nutricionais , Melatonina/administração & dosagem , Vitamina D/administração & dosagem , Zinco/administração & dosagem , Proteína C-Reativa/análise , COVID-19/prevenção & controle , Humanos , Sistema Imunitário/efeitos dos fármacos , Inflamação/tratamento farmacológico , Metanálise como Assunto , SARS-CoV-2 , Oligoelementos/administração & dosagem , Vitaminas/administração & dosagem
20.
Nutrients ; 13(3)2021 Mar 16.
Artigo em Inglês | MEDLINE | ID: mdl-33809457

RESUMO

The study objective was to identify determinants of essential elements and vitamins intake, and microelements and vitamins concentration in blood among pregnant women from Poland. Based on the data from food frequency questionnaires and information about supplements taken (n = 1252), daily supply of six elements (calcium, magnesium, iron, zinc, copper, selenium) and nine vitamins (folate, vitamins A, E, C, B1, B2, B3, B6, B12) was calculated. Zinc, copper, selenium (n = 340), vitamin A and E (n = 358) concentration was determined in blood collected during pregnancy. Most of the women did not meet the demand for essential elements and vitamins with a diet. About 94% of the respondents declared supplements use. The women with higher education, indicating leisure-time, physical activity and multiparity had a higher chance of meeting the average demand for the majority of the analyzed nutrients. On the other hand, factors such as BMI < 18.5kg/m2, a higher level of stress, and late first medical-care visit were associated with a lower chance of meeting the recommendations. Higher socio-economic status was a determinant of a higher selenium concentration in plasma (ß = 3.1; 95%CI: 0.2-5.9), whereas BMI ≥ 25 kg/m2, and multiparity of a higher copper concentration in plasma (ß = 0.2; 95%CI: 0.03-0.4; ß = 0.2; 95%CI: 0.1-0.4). Higher plasma concentration of vitamin E was noted among women older than 30 years of age comparing to those who were 30 or younger (ß = 1.5; 95%CI: 0.6-2.4). Although more studies are required, especially such based on laboratory measures, our results indicate target groups for dietary interventions during pregnancy for children's optimal health and development.


Assuntos
Fenômenos Fisiológicos da Nutrição Materna/fisiologia , Gravidez/fisiologia , Oligoelementos/administração & dosagem , Vitaminas/administração & dosagem , Adolescente , Adulto , Estudos de Coortes , Dieta , Inquéritos sobre Dietas , Suplementos Nutricionais , Feminino , Humanos , Estado Nutricional , Polônia , Gravidez/metabolismo , Inquéritos e Questionários , Oligoelementos/metabolismo , Vitaminas/metabolismo , Adulto Jovem
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