scholarly journals The effect of moderately increased intakes of complex carbohydrates (cereals, vegetables and fruit) for 12 weeks on iron and zinc metabolism

1990 ◽  
Vol 63 (3) ◽  
pp. 597-611 ◽  
Author(s):  
Pamela M. Manson ◽  
Patricia A. Judd ◽  
Susan J. Fairweather-Tait ◽  
John Eagles ◽  
Margret J. Minski
Keyword(s):  
Adverse Effect ◽  
Bowel Function ◽  
Zinc Metabolism ◽  
Moderate Increase ◽  
Adult Women ◽  
Zinc Absorption ◽  
Zn Nutrition ◽  
Iron And Zinc ◽  
Complex Carbohydrates ◽  
Zn Status

Fifteen adult women were given diets in which the intake of complex carbohydrates was increased from 20 to 30 g over a 12 week period. Metabolic balances were carried out, iron and zinc absorption tests performed using stable isotopes, and Fe and Zn status monitored. Although effects on bowel function were observed, the changed diet had no influence on any of the previously described variables. It was concluded that a moderate increase in cereals, fruit and vegetables did not have an adverse effect on Fe or Zn nutrition.

scholarly journals Nitrogen, Iron and Zinc Acquisition: Key Nutrients to Aspergillus fumigatus Virulence

2021 ◽  
Vol 7 (7) ◽  
pp. 518
Author(s):  
Uxue Perez-Cuesta ◽  
Xabier Guruceaga ◽  
Saioa Cendon-Sanchez ◽  
Eduardo Pelegri-Martinez ◽  
Fernando L. Hernando ◽  
...  
Keyword(s):  
Aspergillus Fumigatus ◽  
Opportunistic Pathogen ◽  
Zinc Metabolism ◽  
Wide Field ◽  
Regulation Process ◽  
Number Of Genes ◽  
Iron And Zinc ◽  
Fungal Nutrition

Aspergillus fumigatus is a ubiquitous soil decomposer and an opportunistic pathogen that is characterized by its large metabolic machinery for acquiring nutrients from media. Lately, an ever-increasing number of genes involved in fungal nutrition has been associated with its virulence. Of these, nitrogen, iron, and zinc metabolism-related genes are particularly noteworthy, since 78% of them have a direct implication in virulence. In this review, we describe the sensing, uptake and regulation process of the acquisition of these nutrients, the connections between pathways and the virulence-implicated genes. Nevertheless, only 40% of the genes mentioned in this review have been assayed for roles in virulence, leaving a wide field of knowledge that remains uncertain and might offer new therapeutic and diagnostic targets.

The interplay between iron and zinc metabolism in Aspergillus fumigatus

2009 ◽  
Vol 46 (9) ◽  
pp. 707-713 ◽  
Author(s):  
Sabiha Yasmin ◽  
Beate Abt ◽  
Markus Schrettl ◽  
Tarek A.A. Moussa ◽  
Ernst R. Werner ◽  
...  
Keyword(s):  
Aspergillus Fumigatus ◽  
Zinc Metabolism ◽  
Iron And Zinc

scholarly journals Adverse Effect of Pregnancy on High Density Lipoprotein (HDL) Cholesterol in Young Adult Women: The CARDIA Study

1996 ◽  
Vol 144 (3) ◽  
pp. 247-254 ◽  
Author(s):  
C. E. Lewis ◽  
E. Funkhouser ◽  
J. M. Raczynski ◽  
S. Sidney ◽  
D. E. Bild ◽  
...  
Keyword(s):  
Adverse Effect ◽  
Young Adult ◽  
High Density Lipoprotein ◽  
Density Lipoprotein ◽  
Hdl Cholesterol ◽  
High Density ◽  
Adult Women ◽  
Young Adult Women

Effect of meat intake on zinc absorption, iron and zinc balance and indices of iron status

1994 ◽  
Vol 94 (9) ◽  
pp. A31
Author(s):  
J.R Hunt ◽  
B.S Hoverson ◽  
S.K Gallagher ◽  
L.K Johnson ◽  
G.I Lykken
Keyword(s):  
Iron Status ◽  
Zinc Absorption ◽  
Meat Intake ◽  
Iron And Zinc ◽  
Zinc Balance

Effect of Intestinal Microflora on Iron and Zinc Metabolism, and on Activities of Metalloenzymes in Rats

1972 ◽  
Vol 102 (1) ◽  
pp. 101-107 ◽  
Author(s):  
Bandaru S. Reddy ◽  
Julian R. Pleasants ◽  
Bernard S. Wostmann
Keyword(s):  
Intestinal Microflora ◽  
Zinc Metabolism ◽  
Iron And Zinc

Production of impure prebiotic galacto-oligosaccharides and their effect on calcium, magnesium, iron and zinc absorption in Sprague-Dawley rats

2016 ◽  
Vol 4 (4) ◽  
pp. 154-160 ◽  
Author(s):  
Kaleemullah Maawia ◽  
Sanaullah Iqbal ◽  
Tahir Rasool Qamar ◽  
Pakeeza Rafiq ◽  
Azmat ullah ◽  
...  
Keyword(s):  
Zinc Absorption ◽  
Sprague Dawley ◽  
Sprague Dawley Rats ◽  
Iron And Zinc ◽  
Calcium Magnesium

scholarly journals Promoters effectiveness in the improvement in iron and zinc absorption from the rice and bean

2020 ◽  
Vol 40 (suppl 1) ◽  
pp. 363-368
Author(s):  
Larissa Catelli Rocha TORRES ◽  
José Eduardo Pedroso Gomes do AMARAL ◽  
Solange Guidolin Canniatti-Brazaca
Keyword(s):  
Zinc Absorption ◽  
Iron And Zinc

Algorithms for Iron and Zinc Bioavailability: Are they Accurate?

2010 ◽  
Vol 80 (45) ◽  
pp. 257-262 ◽  
Author(s):  
Janet R. Hunt
Keyword(s):  
Iron Absorption ◽  
Iron Status ◽  
Large Data ◽  
Iron Bioavailability ◽  
Dietary Factors ◽  
Current Evidence ◽  
Zinc Absorption ◽  
Data Set ◽  
Zinc Bioavailability ◽  
Iron And Zinc

Several bioavailability algorithms have been proposed for iron and zinc, confirming the need for these tools while emphasizing the challenge of deriving algorithms with accepted accuracy. This manuscript briefly reviews current evidence on the accuracy of proposed algorithms. Iron absorption is strongly influenced by both body iron status and dietary availability, and most evidence suggests that these do not interact. There is considerable evidence of a logarithmic relationship between percent iron absorption and serum ferritin that allows a simple and accurate computation of how human iron status affects absorption (in the absence of inflammation). Computing the effect of dietary variation on nonheme iron absorption has been challenging because of multiple influential dietary factors and incomplete knowledge of their chemical characteristics, food composition, interactions, and dose-response relationships. At present there is no fully validated algorithm for dietary iron bioavailability. Predicting zinc absorption is less complex. Fractional zinc absorption is substantially influenced by the amount of zinc consumed, and this factor, together with ingested phytic acid, account for a considerable degree of the variance. A multivariate saturation model based on these two variables has been derived using data from multiple studies and independently validated with a single large data set.

scholarly journals Zinc absorption in the rat

1981 ◽  
Vol 46 (1) ◽  
pp. 15-27 ◽  
Author(s):  
M. J. Jackson ◽  
D. A. Jones ◽  
R. H. T. Edwards
Keyword(s):  
Intestinal Wall ◽  
The Other ◽  
Zinc Absorption ◽  
Normal Range ◽  
Stomach Tube ◽  
Additional Mechanism ◽  
Zn Content ◽  
Zn Homeostasis ◽  
Small Intestinal ◽  
Zn Status

1. A method of studying zinc absorption in rats has been developed in which binding of radioactive Zn to the intestinal mucosa and absorption into the carcass was determined at different times after administration by stomach tube.2. This technique has been used to evaluate different hypotheses concerning the control of Zn absorption and to examine the processes by which this occurs.3. The proportion of radioactive Zn absorbed into the carcass was found to be dependent on the Zn status of the animals but that found within the small intestinal wall was independent of this, indicating the existence of two mechanisms of Zn absorption.4. One of these two mechanisms has been shown to be induced by a low dietary Zn content while the other was shown to be insensitive to this. This latter mechanism predominated in rats of normal dietary Zn status and a study of the characteristics of this process indicated that the quantity of Zn absorbed was proportional to the dietary Zn content over the normal range of intake. This implies that normally Zn homeostasis in rats is achieved through variations in Zn excretion. The additional mechanism of Zn absorption only becomes fully active at levels of dietary Zn below 0.24 μmol/g diet.

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