scholarly journals Low Phytate Peas (Pisum sativum L.) Improve Iron Status, Gut Microbiome, and Brush Border Membrane Functionality In Vivo (Gallus gallus)

Nutrients ◽  
2020 ◽  
Vol 12 (9) ◽  
pp. 2563 ◽  
Author(s):  
Tom Warkentin ◽  
Nikolai Kolba ◽  
Elad Tako
Keyword(s):  
Iron Deficiency ◽  
Gut Microbiota ◽  
Brush Border ◽  
Brush Border Membrane ◽  
Iron Status ◽  
Gallus Gallus ◽  
Intestinal Microbiome ◽  
Physiological Status ◽  
Dietary Iron

The inclusion of pulses in traditional wheat-based food products is increasing as the food industry and consumers are recognizing the nutritional benefits due to the high protein, antioxidant activity, and good source of dietary fiber of pulses. Iron deficiency is a significant global health challenge, affecting approximately 30% of the world’s population. Dietary iron deficiency is the foremost cause of anemia, a condition that harms cognitive development and increases maternal and infant mortality. This study intended to demonstrate the potential efficacy of low-phytate biofortified pea varieties on dietary iron (Fe) bioavailability, as well as on intestinal microbiome, energetic status, and brush border membrane (BBM) functionality in vivo (Gallus gallus). We hypothesized that the low-phytate biofortified peas would significantly improve Fe bioavailability, BBM functionality, and the prevalence of beneficial bacterial populations. A six-week efficacy feeding (n = 12) was conducted to compare four low-phytate biofortified pea diets with control pea diet (CDC Bronco), as well as a no-pea diet. During the feeding trial, hemoglobin (Hb), body-Hb Fe, feed intake, and body weight were monitored. Upon the completion of the study, hepatic Fe and ferritin, pectoral glycogen, duodenal gene expression, and cecum bacterial population analyses were conducted. The results indicated that certain low-phytate pea varieties provided greater Fe bioavailability and moderately improved Fe status, while they also had significant effects on gut microbiota and duodenal brush border membrane functionality. Our findings provide further evidence that the low-phytate pea varieties appear to improve Fe physiological status and gut microbiota in vivo, and they highlight the likelihood that this strategy can further improve the efficacy and safety of the crop biofortification and mineral bioavailability approach.

scholarly journals Quinoa Fiber and Quercetin Alter the Composition and Function of the Cecal Microbiome and Improve Brush Border Membrane Functionality and Morphology In-Vivo (Gallus gallus)

2021 ◽  
Vol 5 (Supplement_2) ◽  
pp. 292-292
Author(s):  
Nikita Agarwal ◽  
Noa Khen ◽  
Nikolai Kolba ◽  
Elad Tako
Keyword(s):  
Gene Expression ◽  
Brush Border ◽  
Brush Border Membrane ◽  
Iron Status ◽  
Gallus Gallus ◽  
Intestinal Morphology ◽  
Soluble Fiber ◽  
Mineral Solubility ◽  
And Function

Abstract Objectives Assessment and comparison of the effects of various concentrations of soluble extracts of quinoa fiber (Chenopodium quinoa Willd.) and quercetin-3-glucoside on the zinc and iron status, brush border membrane (BBM) functionality, intestinal morphology, and cecal bacterial populations in-vivo (Gallus gallus). Methods The study utilized Gallus gallus intra-amniotic feeding, a clinically validated method to assess the effects of quinoa, quercetin, and control using seven groups (no injection, 18 Ω H2O, 5% inulin, 1% quercetin 3-glucoside, 2.5% quinoa fiber, 5% quinoa fiber, 1% quercetin 3-glucoside + 5% quinoa fiber). Upon hatch, the cecum, duodenum, pectoral muscle, liver, and blood samples were collected for the estimation of the relative abundance of the gut microbiome, mRNA gene expression Zn and Fe-related transporter proteins and brush border membrane functionality and morphology, glycogen, relative expression of lipid-related genes and hemoglobin levels, respectively. Results The results demonstrated an increase (P < 0.05) in villi height, weight, and surface area in the groups administered with quercetin, and a dose-dependent increase was observed with quinoa soluble fiber treatment. Additionally, an increase in ferroportin and duodenal cytochrome B (DcytB) was observed in the group injected with both quinoa and quercetin. Similarly, zinc transporter 7 (ZnT7) and sucrose-isomaltase (SI) gene expression was upregulated in this group. Further, the administration of quinoa soluble fiber altered the composition and function of the cecal microbiome. Conclusions The evidence suggests that quinoa and quercetin have a synergistic effect, together they are found to improve BBM morphology and functionality, affect the intestinal microbiome, increase short-chain fatty acid production, and thereby improving mineral solubility. Quinoa fibers, a polyphenol-rich superfood, may help fight micronutrient deficiencies in target populations. Funding Sources N/A.

scholarly journals Soluble Extracts from Chia Seed (Salvia hispanica L.) Affect Brush Border Membrane Functionality, Morphology and Intestinal Bacterial Populations In Vivo (Gallus gallus)

Nutrients ◽  
2019 ◽  
Vol 11 (10) ◽  
pp. 2457 ◽  
Author(s):  
Pereira da Silva ◽  
Kolba ◽  
Stampini Duarte Martino ◽  
Hart ◽  
Tako
Keyword(s):  
Brush Border ◽  
Brush Border Membrane ◽  
Gallus Gallus ◽  
Intestinal Morphology ◽  
Salvia Hispanica ◽  
Bacterial Populations ◽  
Relative Expression ◽  
Chia Seed ◽  
Salvia Hispanica L

This study assessed and compared the effects of the intra-amniotic administration of various concentrations of soluble extracts from chia seed (Salvia hispanica L.) on the Fe and Zn status, brush border membrane functionality, intestinal morphology, and intestinal bacterial populations, in vivo. The hypothesis was that chia seed soluble extracts will affect the intestinal morphology, functionality and intestinal bacterial populations. By using the Gallus gallus model and the intra-amniotic administration approach, seven treatment groups (non-injected, 18 Ω H2O, 40 mg/mL inulin, non-injected, 5 mg/mL, 10 mg/mL, 25 mg/mL and 50 mg/mL of chia seed soluble extracts) were utilized. At hatch, the cecum, duodenum, liver, pectoral muscle and blood samples were collected for assessment of the relative abundance of the gut microflora, relative expression of Fe- and Zn-related genes and brush border membrane functionality and morphology, relative expression of lipids-related genes, glycogen, and hemoglobin levels, respectively. This study demonstrated that the intra-amniotic administration of chia seed soluble extracts increased (p < 0.05) the villus surface area, villus length, villus width and the number of goblet cells. Further, we observed an increase (p < 0.05) in zinc transporter 1 (ZnT1) and duodenal cytochrome b (Dcytb) proteins gene expression. Our results suggest that the dietary consumption of chia seeds may improve intestinal health and functionality and may indirectly improve iron and zinc intestinal absorption.

scholarly journals Alterations in the Intestinal Morphology, Gut Microbiota, and Trace Mineral Status Following Intraamniotic Administration (Gallus gallus) of Genistein

2021 ◽  
Vol 5 (Supplement_2) ◽  
pp. 307-307
Author(s):  
Jacquelyn Cheng ◽  
Philip Sisser ◽  
Nikolai Kolba ◽  
Elad Tako
Keyword(s):  
Body Weight ◽  
Gut Microbiota ◽  
Physiological Role ◽  
Gallus Gallus ◽  
Intestinal Morphology ◽  
Intestinal Microbiome ◽  
Physiological Status ◽  
Rrna Gene ◽  
Divalent Metal Transporter 1 ◽  
Divalent Metal Transporter

Abstract Objectives Assess the effects of intraamniotic genistein administration on brush border membrane (BBM) functionality, intestinal morphology, cecal microbiome and Fe status in-vivo (Gallus gallus). Methods Broiler chickens (Gallus gallus, n = 39) were injected in ovo (day 17 of embryonic incubation) with varying concentrations of 1 mL pure genistein in 18 Ω H2O. Two treatment groups (1.25, 2.5%), two controls (water and non-injected), and a positive control (5% inulin) were administered. Upon hatch, blood was taken for hemoglobin determination and chicks were then euthanized. Nutritional status was assessed using pectoral muscle glycogen storage and body weight analysis. Duodenal and cecal tissues were excised for BBM morphometric analysis, mRNA gene expression of relevant BBM Fe transporter proteins, and 16S rRNA gene sequencing was done to evaluate gut microbiota modulation in the intestinal cecum. Results Preliminary results reveal significant increase in body weight, decrease of cecum weight, and increase in villus surface area with the higher dose of genistein administration (P &lt; 0.05) compared to controls. Blood hemoglobin was found to be increased in the genistein-treated groups when compared to the controls (P &lt; 0.05). Additionally, genistein administration downregulated the expression of duodenal cytochrome B (DcytB) and divalent metal transporter 1 (DMT1) and upregulated the expression of ferroportin with a dose responsive effect, indicating improved Fe physiological status. Further, administration of genistein altered the composition and function of cecal microbiota. Conclusions Genistein is a compound present in multiple staple food crops, including soybeans and chickpeas, and may be extracted and potentially used to enhance dietary Fe bioavailability and improve Fe deficiency in vulnerable populations. Recent evidence suggests a physiological role for genistein administration in improving the functionality and development of the BBM, improving Fe status, affecting the intestinal microbiome, as well as improving physiological status. Funding Sources N/A.

scholarly journals Duodenal mucosal and plasma ascorbate levels of patients with iron deficiency

2004 ◽  
Vol 23 (3) ◽  
pp. 279-283
Author(s):  
Bisera Atanasova ◽  
Robert Simpson ◽  
Andy Li ◽  
Kamen Tzatchev ◽  
Timothy Peters
Keyword(s):  
Ascorbic Acid ◽  
Iron Deficiency ◽  
Brush Border ◽  
Iron Absorption ◽  
Reductase Activity ◽  
Iron Status ◽  
Normal Subjects ◽  
Dietary Iron ◽  
Metaphosphoric Acid ◽  
Plasma Ascorbate

Iron is a vital element for almost all living organisms. In mammals iron is taken by the intestinal epithelium, primarily in the duodenum. The initial step of absorption involves the reduction of ferric to ferrous iron both in gastric lumen and at the brush-border apical membrane. Reductase activity is increased by factors physiologically stimulating iron absorption, such as iron deficiency and chronic hypoxia. Ascorbic acid (Vitamin C) has long been known to enhance absorption of dietary iron in humans as shown by several nutritional/dietetic studies. This effect has been ascribed to lumenal reduction and solubilization of iron. Recent molecular cloning of the mammalian duodenal brush-border reductase activity has provided evidence that ascorbate may play an intracellular role in determining iron absorption rates. Previously, ascorbate concentrations have been determined in duodenum, but only in normal subjects and there is no evidence on how duodenal ascorbate alters in relation to intestinal iron absorption. The aim of this study is to examine mucosal and plasma levels of ascorbate and dehydroascorbate in normal subjects and patients with iron deficiency that is known to be a stimulator for iron absorption. Duodenal biopsies were homogenized in 5% metaphosphoric acid using single burst homogeniser. Tissue and plasma ascorbate levels were assayed by ferrozine spectrophotometric method. Blood was taken from each subject to assess the iron status. The analyses of human samples revealed increased duodenal (p <0.001, n = 20) and plasma (p <0.001, n = 6) ascorbate levels in patients with iron deficiency. These findings support an important intracellular role of ascorbic acid in human dietary iron absorption.

scholarly journals Effects of Iron and Zinc Biofortified Foods on Gut Microbiota In Vivo (Gallus gallus): A Systematic Review

Nutrients ◽  
2021 ◽  
Vol 13 (1) ◽  
pp. 189
Author(s):  
Mariana Juste Contin Gomes ◽  
Hércia Stampini Duarte Martino ◽  
Elad Tako
Keyword(s):  
Gut Microbiota ◽  
Pathogenic Bacteria ◽  
Experimental Studies ◽  
Gallus Gallus ◽  
Intestinal Microbiome ◽  
Health Concern ◽  
In Vivo Model ◽  
Positive Effects ◽  
Iron And Zinc

Dietary iron and zinc deficiencies are a global health concern. Bacteria that colonize the gastrointestinal tract depend on minerals to maintain their activities; thus, recent evidence suggests that biofortified foods can modulate the host’s beneficial bacterial taxa. The current review analyzed the research data that linked between iron and zinc biofortified foods and gut microbiota modulation. The data analysis was based on the PRISMA guidelines and the data search was performed at PubMed, Web of Science, Science Direct, and Scopus databases for experimental studies published from January 2010 until December 2020. The five selected studies were conducted in an experimental in vivo model (Gallus gallus). The identified and discussed research showed positive effects of biofortified foods on the composition and function of the gut microbiota. Further, an increase in short chain fatty acids producing bacterial populations as Lactobacillus and Ruminococcus, and a decrease in potentially pathogenic bacteria as Streptococcus, Escherichia, and Enterobacter was identified due to the consumption of biofortified foods. In conclusion, biofortified foods may contribute to improved gut health without increasing the colonization of pathogenic bacteria. The dietary inclusion of approximately 50% of iron/zinc biofortified foods has a significant beneficial effect on the gut microbiota. Additional studies in humans and animal models are warranted to further establish the suggested effects on the intestinal microbiome. PROSPERO (CRD42020184221).

Potential differences influence amino acid/Na+ symport rates in larval Manduca sexta midgut brush-border membrane vesicles.

1994 ◽  
Vol 189 (1) ◽  
pp. 55-67
Author(s):  
R Parthasarathy ◽  
W R Harvey
Keyword(s):  
Amino Acids ◽  
Amino Acid ◽  
Manduca Sexta ◽  
Brush Border ◽  
Brush Border Membrane ◽  
Membrane Vesicles ◽  
Brush Border Membrane Vesicles ◽  
Rate Determining Step ◽  
Half Saturation Constant

The time-dependent fluorescence intensity of an intravesicular potential-sensitive dye was used to probe the real-time kinetics of potential difference (PD)-dependent amino acid/Na+ symport at pH9 into brush-border membrane vesicles obtained from larval Manduca sexta midgut. Neutral amino acids (alanine, proline) are symported at higher rates as the vesicles are hyperpolarized. The symport rates of acidic (glutamate) and basic (arginine) amino acids are almost PD-independent. The half-saturation constant of alanine is PD-independent between -108 and -78 mV, although the maximal symport velocity increases by half as the voltage is increased. Amino acid throughput is evidently enhanced as the relatively high transmembrane PDs (&gt; 150 mV, lumen positive) measured in vivo are approached. The half-saturation concentrations of Na+ were in the range 15-40 mmol l-1 for most of the amino acids examined and increased with voltage for alanine. The Vmax observed as a function of cation or amino acid concentration increased as the vesicle was hyperpolarized in the case of leucine and alanine. The data support the hypothesis that carrier and substrates are at equilibrium inasmuch as substrate translocation seems to be the rate-determining step of symport.

Fortification of tempeh with encapsulated iron improves iron status and gut microbiota composition in iron deficiency anemia condition

2018 ◽  
Vol 48 (6) ◽  
pp. 962-972 ◽  
Author(s):  
Rio Jati Kusuma ◽  
Aviria Ermamilia
Keyword(s):  
Iron Deficiency ◽  
Gut Microbiota ◽  
Iron Deficiency Anemia ◽  
Iron Status ◽  
Deficiency Anemia ◽  
Microbiota Composition ◽  
Iron Fortification ◽  
Iron Matrix ◽  
Content Type ◽  
Gut Microbiota Composition

Purpose Iron deficiency anemia (IDA) is one of the most major micronutrient deficiencies worldwide. Food fortification is one strategy for reducing IDA in the population despite concern regarding the gut pathogenic bacteria overgrowth. The purpose of this study was to evaluate the effect of iron encapsulation in banana peel matrix on iron status and gut microbiota composition in iron deficiency anemia. Design/methodology/approach Anemia was induced in 35 male Sprague Dawley rats of age two weeks by the administration of iron-free diet for two weeks. Rats then randomly divided into control, iron-fortified tempeh (temFe) dose 10 and 20 ppm, iron matrix-fortified tempeh dose 10 and 20 ppm and iron matrix fortified tempeh dose 10 and 20 ppm with probiotic mixture. Blood was drawn at Weeks 2 and 6 for hemoglobin and serum iron analysis. Rats were sacrificed at the end of Week 6, and cecal contents were collected for Lactobacillus, Bifidobacteria and Enterobactericeae analysis. Findings Hemoglobin and serum iron were significantly increased (p < 0.05) in all iron-fortified group with the highest value found in iron matrix dose 20 ppm (10.71 ± 0.15 g/dl and 335.83 ± 2.17 µg/dl, respectively). The cecal Lactobacillus and Bifidobacteria did not differ significantly between groups. Cecal Enterobactericeae was significantly different (p < 0.05) among groups with the lowest level in the temFe-20 (2.65 ± 0.78 log CFU) group. Research limitations/implications The use of commercial inoculum instead of pure Rhizopus oligosporus mold for developing the fortified tempeh may impact the effect of product on cecal gut microbiota composition, as different molds and lactic acid bacteria can grow in tempeh when using commercial inoculum. Social implications In Indonesia, iron fortification is conducted primarily in noodles and flour that limits the impact of iron fortification for reducing IDA in population. Iron fortification in food that was daily consumed by people, that is, tempeh, is potential strategy in reducing IDA in population. Originality/value Tempeh fortification using encapsulated iron improved iron status and gut microbiota composition in iron deficiency anemia.

scholarly journals Ferroportin-Hepcidin Axis in Prepubertal Obese Children with Sufficient Daily Iron Intake

2018 ◽  
Vol 15 (10) ◽  
pp. 2156 ◽  
Author(s):  
Joanna Gajewska ◽  
Jadwiga Ambroszkiewicz ◽  
Witold Klemarczyk ◽  
Ewa Głąb-Jabłońska ◽  
Halina Weker ◽  
...  
Keyword(s):  
Iron Deficiency ◽  
Iron Status ◽  
Hematological Parameters ◽  
Daily Intake ◽  
Normal Weight ◽  
Deficiency Anemia ◽  
Dietary Iron ◽  
Iron Intake ◽  
Obese Children ◽  
Iron Concentrations

Iron metabolism may be disrupted in obesity, therefore, the present study assessed the iron status, especially ferroportin and hepcidin concentrations, as well as associations between the ferroportin-hepcidin axis and other iron markers in prepubertal obese children. The following were determined: serum ferroportin, hepcidin, ferritin, soluble transferrin receptor (sTfR), iron concentrations and values of hematological parameters as well as the daily dietary intake in 40 obese and 40 normal-weight children. The ferroportin/hepcidin and ferritin/hepcidin ratios were almost two-fold lower in obese children (p = 0.001; p = 0.026, respectively). Similar iron concentrations (13.2 vs. 15.2 µmol/L, p = 0.324), the sTfR/ferritin index (0.033 vs. 0.041, p = 0.384) and values of hematological parameters were found in obese and control groups, respectively. Iron daily intake in the obese children examined was consistent with recommendations. In this group, the ferroportin/hepcidin ratio positively correlated with energy intake (p = 0.012), dietary iron (p = 0.003) and vitamin B12 (p = 0.024). In the multivariate regression model an association between the ferroportin/hepcidin ratio and the sTfR/ferritin index in obese children (β = 0.399, p = 0.017) was found. These associations did not exist in the controls. The results obtained suggest that in obese children with sufficient iron intake, the altered ferroportin-hepcidin axis may occur without signs of iron deficiency or iron deficiency anemia. The role of other micronutrients, besides dietary iron, may also be considered in the iron status of these children.

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