scispace - formally typeset
Search or ask a question

Can I combine zinc and retinol? 

Answers from top 8 papers

More filters
Papers (8)Insight
Thus it could be hypothesized that retinol is either a proximate teratogen or a coteratogen with all -trans retinoic acid.
This may provide a possible explanation for the documented nutritional interactions between zinc and retinol.
While lack of response in serum retinol may be explained by generally adequate status, the lack of impact on zinc status requires further exploration.
Thus, the reductions in plasma retinol observed in Zn deficiency are in part a direct consequence of the deficiency.
Therefore, the observed change in mRNA for serum retinol-binding protein was apparently at least in part due to the inanition that accompanies zinc deficiency.
The findings demonstrate that low zinc intake or marginal zinc deficiency significantly lowers the absorption of beta-carotene as estimated by lymphatic retinol output.
The use of water-miscible, emulsified, and solid preparations of retinol should therefore be carefully considered before being used in supplements and fortifications.
The developed procedures were found to be simple, accurate and precise and can be used for the determination of retinol in presence of its degradation products.

See what other people are reading

Does Nutrition education in low income setting improved maternal nutritional status, birth outcome, and child growth?
5 answers
Nutrition education interventions in low-income settings have shown positive impacts on maternal nutritional status, birth outcomes, and child growth. These interventions have led to improvements in maternal nutritional knowledge, resulting in better dietary practices during pregnancy. Additionally, such programs have been associated with increased birth weights, reduced incidence of low birth weight infants, and improved child growth. Furthermore, nutrition education based on models like the transtheoretical model has been effective in enhancing food security, anthropometry, and body composition among women in low-income settings. Overall, these findings emphasize the importance of implementing comprehensive nutrition education initiatives to enhance maternal and child health outcomes in resource-constrained environments.
What are some recommended supplements for a healthy pregnancy?
5 answers
During pregnancy, recommended supplements for a healthy pregnancy include folic acid, iron, calcium, vitamin D, omega-3 fatty acids, and multiple micronutrients. Folic acid is crucial for maternal and fetal health, aiding in the prevention of birth defects. Iron supplementation is essential to prevent anemia and support optimal fetal development. Additionally, omega-3 fatty acids, particularly eicosapentaenoic acid and docosahexaenoic acid, are favored for high-risk pregnancies. Vitamin D is vital for immune function and bone health, while calcium supports bone development in the fetus. Multiple micronutrient supplementation has shown significant effects on maternal and fetal health, potentially impacting clinical practice positively. Ensuring adequate intake of these supplements can reduce the risk of pregnancy complications and promote overall maternal and fetal well-being.
Why does undernutrition among adolescents occur?
5 answers
Undernutrition among adolescents occurs due to various factors such as inappropriate eating behaviors, socioeconomic status, hygiene practices, and early maternal age. Adolescents often consume poor-quality diets with insufficient nutrients, influenced by individual, social, and environmental determinants of behavior and health. Factors like low dietary diversity, poor hygiene behavior compliance, and poverty contribute to undernutrition, particularly stunting and thinness, in adolescents. Adolescent pregnancy is associated with increased risk of childhood underweight and wasting, highlighting the intergenerational impact of malnutrition. Additionally, studies show that factors like pre-mensuration status, household food insecurity, and specific food choices are significantly associated with thinness among female adolescents. Addressing these multifaceted issues through improved nutrition, hygiene practices, and targeted interventions is crucial to combat undernutrition among adolescents and break the cycle of malnutrition.
Which heavy metals does EDTA remove from waste water using solvent extraction?
5 answers
Ethylenediaminetetraacetic acid (EDTA) is utilized for removing heavy metals from wastewater through solvent extraction. Studies show that EDTA can effectively extract metals like copper and mercury from polluted water, with varying efficiencies based on the chelating agent used and operating parameters. Additionally, EDTA-functionalized magnetic nanocomposites have been developed for the removal of heavy metals such as lead and arsenic from aqueous solutions, showcasing high removal efficiency and reusability. Furthermore, a recycling method involving the synthesis of a heavy metals capturing agent, TEPA-DTC, allows for the regeneration of EDTA during soil washing processes, effectively removing divalent heavy metals like lead, cadmium, and copper. Therefore, EDTA demonstrates a versatile capability in extracting a range of heavy metals from wastewater through various innovative approaches.
How does antihypertensive treatment impact women during pregnancy?
4 answers
Antihypertensive treatment during pregnancy has varying impacts on women. Studies show that treating mild to moderate hypertension can lead to better outcomes, including reduced risks of severe hypertension, preeclampsia, placental abruption, renal impairment, and neonatal mortality. However, chronic hypertension still poses risks, with higher odds of adverse outcomes like preeclampsia, preterm birth, and fetal growth restriction, even with treatment. The use of antihypertensive medications in pregnancy requires caution due to potential harm to the fetus, although some medications like methyldopa, hydralazine, labetalol, and nifedipine are commonly used. Early exposure to antihypertensive drugs in the first 20 weeks of gestation has been associated with increased risks of preeclampsia, low birth weight, and preterm birth.
What is the prevalence of teenage pregnancy?
4 answers
The prevalence of teenage pregnancy varies globally, with developing countries contributing to about 90% of teenage pregnancies worldwide. Studies conducted in different regions report varying prevalence rates. In Indian rural and semi-urban populations, the incidence of teenage pregnancy was found to be 12.6%. Similarly, research in a tertiary care hospital revealed a prevalence of 5.3% teenage pregnancies. Furthermore, a comparative study showed that teenage mothers had a higher prevalence of complications like premature delivery, maternal malnutrition, and postpartum hemorrhage compared to adult mothers, indicating the challenges associated with teenage pregnancies. These findings underscore the importance of addressing teenage pregnancy as a significant public health concern due to its impact on maternal and neonatal health outcomes.
How does riboflavin treat migraines?
5 answers
Riboflavin is increasingly recognized for its potential in treating migraines due to its role in reducing inflammation, oxidative stress, and mitochondrial dysfunction, all of which are implicated in migraine pathogenesis. Clinical studies have shown that supplemental riboflavin is an effective and low-risk prophylactic treatment for migraines in adults. In adults, riboflavin at doses up to 400 mg daily can reduce migraine frequency by over 50% and is comparable in efficacy to other migraine medications but with fewer side effects. While the evidence for riboflavin's efficacy in pediatric migraines is not as solid, it is increasingly being considered as a preventive therapy due to its safety profile and potential effectiveness. Further research is needed to solidify the role of riboflavin in treating migraines, particularly in children and adolescents.
What specific nutritional components in Iberian pig contribute to these health benefits?
4 answers
The health benefits observed in Iberian pigs can be attributed to specific nutritional components present in their diet. Studies have shown that dietary supplementation with vitamin D3 metabolite-rich plant extracts, particularly 1,25 dihydroxyvitamin D (1,25(OH)2D), can improve innate antimicrobial responses and intestinal mucosal barrier integrity, leading to enhanced growth performance and immune function. Additionally, feeding Iberian pigs legume-based diets, such as lupin or chickpea seed meals, can positively influence the composition of intestinal microbiota, promoting beneficial bacteria like Bacteroides and reducing harmful bacteria like Escherichia/Shigella, potentially enhancing the overall health of the pigs. These nutritional interventions play a crucial role in supporting the health and well-being of Iberian pigs.
How to prevent teenage pregnancy?
4 answers
To prevent teenage pregnancy, comprehensive strategies are essential. Programs focusing on skill-building, peer-led initiatives, and abstinence have shown effectiveness in reducing adolescent pregnancy rates. Encouraging participation in comprehensive prevention programs, providing reproductive health information, and maintaining positive family relationships are crucial. Health professionals play a pivotal role by improving access to family planning, offering sexuality education, and supporting pregnant adolescents in decision-making. Additionally, involving parents in communication and monitoring can significantly impact sexual health discussions and behaviors among adolescents, emphasizing the importance of parental involvement in prevention efforts. Integrated sexuality education, access to contraception, and informed decision-making through parental support are key components in preventing adolescent pregnancies.
What is t-test?
5 answers
The t-test is a widely used statistical method for comparing sample means to determine if they come from the same population. It was first derived as a posterior distribution in 1876 by Helmert and Lüroth. While the traditional t-test is popular, its validity can be limited due to assumptions about the distribution of the t-statistic not always holding true, especially in the presence of bounded distributions, leading to potential errors. William S. Gosset's development of the t-test, also known as Student's t-test, allows researchers to compare sample means easily using basic tools like paper, pen, and a calculator, although its simplicity can sometimes lead to misuse. The t-test's utility extends to predicting obstetric complications in pregnant women who had hepatitis before pregnancy, showcasing its versatility in various fields of research.
What is meant by antinutrients in calcium absorption?
5 answers
Antinutrients are naturally occurring compounds in food that hinder the absorption of essential nutrients like calcium. They are present in various plant-based foods and can have both negative and positive effects on health depending on their concentration and interactions with other dietary components. Examples of antinutrients that affect calcium absorption include phytates, tannins, oxalates, and saponins. These compounds bind to calcium and inhibit its absorption, leading to potential mineral deficiencies and micronutrient malnutrition in individuals. However, some antinutrients like phytate, lectins, tannins, saponins, amylase inhibitors, and protease inhibitors may also have health benefits at low concentrations, such as reducing blood glucose levels and cholesterol responses. Various processing techniques like soaking, germination, and cooking can help reduce the levels of antinutrients in foods, thereby improving calcium bioavailability.