7,527 results match your criteria: "Vitamin A Deficiency"

Food fortification is an effective strategy to combat vitamin A deficiency. Gari, a cassava-based West African food product, is an interesting product to fortify with vitamin A, but the low stability of vitamin A poses a challenge. We showed that toasted wheat bran can stabilise vitamin A as retinyl palmitate (RP) during storage of RP-fortified gari to a limited extent.

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Prevalence of ocular manifestations of vitamin A deficiency in children: A systematic review.

Arch Soc Esp Oftalmol (Engl Ed)

December 2024

Facultad de Medicina, Universidad El Bosque, Bogotá, Colombia. Electronic address:

Objective: Identify the prevalence of ocular manifestations due to vitamin A in children.

Methods: The systematic search was carried out in September 2022. Observational studies with populations between 0-18 years old, who had ocular manifestations due to vitamin A deficiency, were included.

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Vitamin A deficiency (VAD) and iron deficiency anemia coexist around the world, particularly in children and women of reproductive age in low- and middle-income countries. Within this scenario, there is a known interaction between vitamin A and iron, and it has been postulated that lack of vitamin A impairs iron metabolism, leading to vitamin A deficiency anemia (VADA). Current animal, epidemiological, and clinical studies support this notion.

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Multifaceted determinants of micronutrient status in early childhood in Iran : National food and nutrition surveillance.

Eur J Nutr

December 2024

Department of Nutrition Research, National Nutrition and Food Technology Research Institute, Faculty of Nutrition Sciences and Food Technology, Shahid Beheshti University of Medical Sciences, Tehran, Iran.

Purpose: This study examined the status and determinants of key micronutrients among 24-60 month children in underprivileged provinces of Iran, highlighting ongoing challenges despite intervention efforts.

Methods: This study analyzed data from the National Food and Nutrition Surveillance program. A multistage cluster sampling method was used, recruiting 280 children per province from Khuzestan, Kerman, Ilam, Bushehr, Hormozgan, Kohgiluyeh va Boyerahmad, Sistan va Baluchestan and South Khorasan.

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Distribution of risk factors for cardiovascular diseases has been changing globally, which may account for the discrepant temporal trends of ischemic heart disease (IHD) and stroke. To test the hypothesis and identify potential contributing factors, we designed an ecological study based on the GDB-2019 data and extracted age-standardized incidence rates (ASIRs) of IHD and stroke, and summary exposure values (SEVs) of 87 attributable factors. A declining trend was observed for ASIRs of stroke (globally from 181.

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Article Synopsis
  • - The study aimed to explore how certain immune system markers before surgery relate to the chances of esophageal squamous cell carcinoma (ESCC) returning within three years after patients undergo immunotherapy and chemotherapy.
  • - Researchers analyzed 348 ESCC patients, comparing those who experienced recurrence to those who did not, looking at various immunological factors and lifestyle choices that could impact recurrence risk.
  • - Key findings indicated that higher levels of CD8+ and Perforin+ cells were linked to a lower recurrence risk, while certain proteins (like EGFR and PD-L1) correlated with a higher risk; a predictive model showed high accuracy for assessing recurrence based on these markers.
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The presentation of vitamin A deficiency (VAD)-induced ocular complications can be challenging to diagnose in elderly patients, particularly due to the overlap with age-related macular degeneration (AMD) symptoms. This case report details the presentation, diagnosis, and management of an 88-year-old female with vision loss, highlighting the ocular manifestations of presumed VAD. Despite vitamin A levels being at the lower end of the normal range, the patient's symptoms and spectral domain optical coherence tomography (SD-OCT) findings suggested insufficient levels, leading to thinning of the outer nuclear layer.

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Article Synopsis
  • The meta-analysis aims to explore the link between vitamin A (VA) levels and type 1 diabetes mellitus (T1DM) patients by comparing case-control studies.
  • After reviewing eight studies with a total of 689 participants, the analysis indicated a significant reduction in serum VA levels in T1DM patients compared to control groups.
  • The findings suggest that further research is needed to better understand this relationship, considering factors like geographical differences and testing methods.
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Background: Despite many measures taken by the government, still the problem of Vitamin A deficiency and anaemia exists among children. This study focuses on coverage of iron and folic acid and Vitamin A supplementation among children aged between 9 months and 5 years and to find out the barriers in administrating these supplements to children.

Methods: An explanatory sequential mixed methodology was conducted in the field practice area of Thirubuvanai primary health centre.

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Urethral keratosis caused by vitamin A deficiency: two case reports.

BMC Pediatr

October 2024

Department of Pediatric Urology, Saitama Children's Medical Center, 1-2, Shintoshin, Chuo- ku, Saitama, 330-8777, Japan.

Background: Dysuria in children can have various etiologies, including ureteric stones, phimosis, congenital obstructive posterior urethral membrane, and neurogenic bladders. However, there have been no reports of vitamin A deficiency (VAD) causing dysuria due to urethral keratosis. Here, we report two cases of urethral keratosis caused by a VAD.

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This study systematically analyzes the relationship of vitamin A on the neonatal respiratory diseases. An extensive literature search for relevant studies was conducted on PubMed, Web of Science, and so on. After screening in strict accordance with the inclusion and exclusion criteria, 12 articles on vitamin A deficiency and 12 articles on vitamin A supplementation were included.

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Objective: To conduct a systematic review of the published peer-reviewed articles on the biochemical assessment of nutritional status of South African infants, children and adolescents in 1997-2022.

Design: Online databases (Pubmed, CINAHL, EbscoHost and SAePublications) were used to identify thirty-nine papers.

Setting: South Africa, 1997-2022.

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Pregnant women and children are vulnerable to vitamin A deficiency (VAD), which is often compounded by concurrent deficiencies in other micronutrients, particularly iron and zinc, in developing countries. The study investigated the effects of early-life VAD on motor and cognitive development and trace mineral status in a mouse model. C57BL/6J dams were fed either a vitamin A-adequate (VR) or -deficient (VD) diet across two consecutive gestations and lactations.

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Childhood vitamin A deficiency leads to increased morbidity and mortality. Human milk is the only source of vitamin A for exclusively breastfed infants. Dried leaf powder (moringa) is a good food source of provitamin A and other carotenoids.

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Article Synopsis
  • Vitamin A deficiency can lead to serious eye problems and is often linked to selective eating habits in children with autism spectrum disorder (ASD).
  • A study involving 13 children showed that many had significant neurological issues and obesity-related conditions due to low Vitamin A levels, with 61.5% of them also diagnosed with ASD.
  • Early identification of nutrient deficiencies through examining food intake is crucial for neuro-diverse children, as timely Vitamin A treatment can prevent long-term damage, including severe vision loss.
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  • Moderate vitamin A levels during pregnancy are crucial for normal embryonic development, while both deficiency and excess can lead to urinary tract abnormalities in offspring.
  • Using mouse models, the study showed that prenatal vitamin A deficiency led to increased rates of urinary tract malformations due to issues with ureteral bud and key developmental molecules.
  • Administering normal vitamin A diets during pregnancy can potentially reduce the harmful effects of prior vitamin A deficiency and help correct developmental issues in the offspring.
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Effect of orange-fleshed sweet potato (Ipomoea batatas)-Bambara groundnut (Vigna subterranea) composite flour on quality properties of pasta.

J Food Sci

November 2024

Plant Breeding Agro-processing Unit, Agricultural Research Council-Vegetable, Industrial and Medicinal Plants, Pretoria, South Africa.

Article Synopsis
  • * The study found that a 50% wheat, 25% OFSP, and 25% BG blend resulted in pasta with higher protein, fiber, and mineral content compared to traditional wheat pasta, while consumer preference leaned towards a mix of 70% wheat, 15% OFSP, and 15% BG.
  • * This research emphasizes the potential benefits of using OFSP and BG for pasta production, aiming to address nutritional deficiencies, support local economies, and enhance
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  • * A study involving 596 schoolchildren aged 8-12 years revealed a high prevalence of xerophthalmia (48.8%), primarily identified by conjunctival xerosis, and linked to factors like malnutrition and socio-demographic status.
  • * Boys and indigenous Orang Asli children showed a higher risk for xerophthalmia, while overweight/obese children had a lower risk, highlighting the need for targeted interventions to address VAD and its related health issues in these communities.
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  • The study focuses on the histological findings and AS-OCT results in patients suffering from severe keratomalacia and corneal perforation due to vitamin A deficiency (VAD).
  • Four patients were examined, with most showing severe VAD and evidence of corneal damage, including perforation in three cases.
  • The findings highlight a correlation between AS-OCT imaging and histological results, demonstrating that keratomalacia, while rare, can still occur in well-nourished populations, showcasing symptoms such as Bitot's spots in one patient.
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