Iron Bioavailability from Diets Consumed by Different Socioeconomic Strata of the Venezuelan Population

1995 ◽  
Vol 125 (7) ◽  
pp. 1860-1868 ◽  
Author(s):  
Peter G. Taylor ◽  
Hernán Méndez-Castellanos ◽  
Carlos Martínez-Torres ◽  
Werner Jaffe ◽  
Mercedes López de Blanco ◽  
...  
2018 ◽  
Vol 15 (2) ◽  
pp. 105-120
Author(s):  
Cecilia Villegas ◽  
Carlos Flores-Angulo ◽  
Jose A. Martínez ◽  
Flor Herrera ◽  
Nancy Moreno

Infancy ◽  
2020 ◽  
Vol 26 (1) ◽  
pp. 123-147
Author(s):  
Lillian R. Masek ◽  
Sarah J. Paterson ◽  
Roberta Michnick Golinkoff ◽  
Roger Bakeman ◽  
Lauren B. Adamson ◽  
...  
Keyword(s):  

2021 ◽  
pp. 002073142110192
Author(s):  
Rekha M. Ravindran ◽  
R. Anjali Krishnan ◽  
P.S. Kiran ◽  
Bindhu Mohan ◽  
K.S. Shinu

Globally, the coronavirus disease 2019 (COVID-19) pandemic has resulted in several psychosocial manifestations across all socioeconomic strata. This study attempted to explore the details of a psychosocial support system implemented in Kerala, India, to address psychosocial issues during this pandemic. It employed a descriptive approach using qualitative and quantitative methods. The results can be summarized into 4 overarching themes: (1) process of implementation, (2) issues addressed, (3) experiences, and (4) success stories. This intervention targeted the whole population, with a specific focus on quarantined/isolated individuals and selected vulnerable groups. COVID pandemic has sowed several negative emotions, such as anxiety; and stigma and fearful thoughts, including suicidal ideations; trepidation regarding family members; and misinfodemics in general. Social and religious corollaries of the pandemic have intensified the psychological agony. The study provides an overview of the psychosocial intervention adopted by the state during the pandemic, which has helped both the beneficiaries and the providers. It has also helped to promote positive thinking and change the attitude toward the disease among the beneficiaries. It is highly commendable that timely intervention could obviate quite a few psychiatric emergencies, including suicides and aggressive behaviors. Considering its efficiency, flexibility, and sustainability, this model can be replicated in any setting.


2020 ◽  
Vol 16 (S3) ◽  
Author(s):  
Yvette Wilda Jyrwa ◽  
Ravindranadh Palika ◽  
Swetha Boddula ◽  
Naveen Kumar Boiroju ◽  
Radhika Madhari ◽  
...  

Molecules ◽  
2021 ◽  
Vol 26 (13) ◽  
pp. 3833
Author(s):  
Fatma M. Elessawy ◽  
Albert Vandenberg ◽  
Anas El-Aneed ◽  
Randy W. Purves

Pulse crop seed coats are a sustainable source of antioxidant polyphenols, but are typically treated as low-value products, partly because some polyphenols reduce iron bioavailability in humans. This study correlates antioxidant/iron chelation capabilities of diverse seed coat types from five major pulse crops (common bean, lentil, pea, chickpea and faba bean) with polyphenol composition using mass spectrometry. Untargeted metabolomics was used to identify key differences and a hierarchical analysis revealed that common beans had the most diverse polyphenol profiles among these pulse crops. The highest antioxidant capacities were found in seed coats of black bean and all tannin lentils, followed by maple pea, however, tannin lentils showed much lower iron chelation among these seed coats. Thus, tannin lentils are more desirable sources as natural antioxidants in food applications, whereas black bean and maple pea are more suitable sources for industrial applications. Regardless of pulse crop, proanthocyanidins were primary contributors to antioxidant capacity, and to a lesser extent, anthocyanins and flavan-3-ols, whereas glycosylated flavonols contributed minimally. Higher iron chelation was primarily attributed to proanthocyanidin composition, and also myricetin 3-O-glucoside in black bean. Seed coats having proanthocyanidins that are primarily prodelphinidins show higher iron chelation compared with those containing procyanidins and/or propelargonidins.


Genes ◽  
2021 ◽  
Vol 12 (8) ◽  
pp. 1120
Author(s):  
Raquel Sorribes-Dauden ◽  
María Teresa Martínez-Pastor ◽  
Sergi Puig

Iron is an essential micronutrient for all eukaryotic organisms because it participates as a redox cofactor in multiple metabolic processes. Iron bioavailability is highly restricted due to the low solubility of its oxidized form, frequently leading to iron deficiency anemia. The baker’s yeast Saccharomyces cerevisiae is used as a model organism for iron homeostasis studies, but also as a food supplement and fermentative microorganism in the food industry. Yeast cells use the vacuolar Ccc1 transporter to detoxify and store excess iron in the vacuoles. Here, we modulate CCC1 expression and properties to increase iron extraction from the environment. We show that constitutive expression of full-length CCC1 is toxic, whereas deletion of its cytosolic amino-terminal (Nt) domain (NtDCCC1) rescues this phenotype. Toxicity is exacerbated in cells lacking AFT1 transcription factor. Further characterization of NtDCcc1 protein suggests that it is a partially functional protein. Western blot analyses indicate that deletion of Ccc1 Nt domain does not significantly alter GFP-Ccc1 protein stability. A functional full-length GFP-Ccc1 protein localized to particular regions of the vacuolar membrane, whereas GFP-NtDCcc1 protein was evenly distributed throughout this endogenous membrane. Interestingly, expression of NtDCCC1 increased the accumulation of endogenous iron in cells cultivated under iron-sufficient conditions, a strategy that could be used to extract iron from media that are not rich in iron.


2021 ◽  
Author(s):  
Lauren E. Manck ◽  
Jiwoon Park ◽  
Benjamin J. Tully ◽  
Alfonso M. Poire ◽  
Randelle M. Bundy ◽  
...  

AbstractIt is now widely accepted that siderophores play a role in marine iron biogeochemical cycling. However, the mechanisms by which siderophores affect the availability of iron from specific sources and the resulting significance of these processes on iron biogeochemical cycling as a whole have remained largely untested. In this study, we develop a model system for testing the effects of siderophore production on iron bioavailability using the marine copiotroph Alteromonas macleodii ATCC 27126. Through the generation of the knockout cell line ΔasbB::kmr, which lacks siderophore biosynthetic capabilities, we demonstrate that the production of the siderophore petrobactin enables the acquisition of iron from mineral sources and weaker iron-ligand complexes. Notably, the utilization of lithogenic iron, such as that from atmospheric dust, indicates a significant role for siderophores in the incorporation of new iron into marine systems. We have also detected petrobactin, a photoreactive siderophore, directly from seawater in the mid-latitudes of the North Pacific and have identified the biosynthetic pathway for petrobactin in bacterial metagenome-assembled genomes widely distributed across the global ocean. Together, these results improve our mechanistic understanding of the role of siderophore production in iron biogeochemical cycling in the marine environment wherein iron speciation, bioavailability, and residence time can be directly influenced by microbial activities.


2016 ◽  
Vol 63 (9) ◽  
pp. 1255-1266 ◽  
Author(s):  
Pia Muhammad Adnan Ramzani ◽  
Muhammad Khalid ◽  
Shazia Anjum ◽  
Waqas-ud-Din Khan ◽  
Muhammad Iqbal ◽  
...  

2011 ◽  
Vol 26 (S2) ◽  
pp. 1893-1893
Author(s):  
I. Manor ◽  
G. Yazpan

ADHD is a well-known, chronic disorder that persists in adulthood. During the past 20 years its existence in adults is becoming clearer, yet its dynamic aspects are rarely discussed. The treatment of adults is vital, as much as that of children; however the literature discussing it, especially its non-pharmacological aspect, is scarce.We describe the results of our treatment with drama-therapy of two groups of adults with ADHD. These groups included 11 adults (from both groups), men and women, from most socioeconomic strata, aged ≥ 60 yrs., who were diagnosed as suffering from ADHD and were treated for it for the first time in their life. Drama-therapy was selected as we believed it to be a useful method with associative, distracted ADHD patients, since it enabled the use of transitional space through non-verbal images and acts.This presentation discusses the basic themes with which patients began therapy. Interestingly, all patients, however different, shared the same themes that were built on self doubt and the pre-presumption of disappointment. The impairment related to ADHD, that was felt, but not understood, led to a strong experience of heavy losses, which we tried to define separately: of a clear path, of control, of the inner perception of borders and of the loss of an integrative inner self. All these losses were accumulated in the transitional space in a place we named “Nowhere land”.We would like to present these themes of losses and of becoming lost and to discuss their meaning.


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