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Related Concept Videos

Review and Preview01:10

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In statistics, several tools are used to interpret the data. Measures of central tendency represent the characteristics of the data, such as mean, median, and mode. Additionally, measures of variance like standard deviation and range are used to find the spread of data from the mean. Relative standing measures the distance between data locations. Commonly used measures of relative standings are percentile, z score, and quartiles.
Percentiles are a type of fractile that partition data into...
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Review and Preview01:13

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Data are individual items of information obtained from a population or sample. Data may be classified as qualitative (categorical), quantitative continuous, or quantitative discrete. Because it is not practical to measure the entire population in a study, researchers use samples to represent the population. A random sample is a representative group from the population chosen by using a method that gives each individual in the population an equal chance of being included in the sample. Random...
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Random and Systematic Errors01:20

Random and Systematic Errors

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Scientists always try their best to record measurements with the utmost accuracy and precision. However, sometimes errors do occur. These errors can be random or systematic. Random errors are observed due to the inconsistency or fluctuation in the measurement process, or variations in the quantity itself that is being measured. Such errors fluctuate from being greater than or less than the true value in repeated measurements. Consider a scientist measuring the length of an earthworm using a...
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Systematic Sampling Method01:17

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Sampling is a technique to select a portion (or subset) of the larger population and study that portion (the sample) to gain information about the population. Data are the result of sampling from a population. The sampling method ensures that samples are drawn without bias and accurately represent the population. Because measuring the entire population in a study is not practical, researchers use samples to represent the population of interest.
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The atomic mass of an element varies due to the relative ratio of its isotopes. A sample's relative proportion of oxygen isotopes influences its average atomic mass. For instance, if we were to measure the atomic mass of oxygen from a sample, the mass would be a weighted average of the isotopic masses of oxygen in that sample. Since a single sample is not likely to perfectly reflect the true atomic mass of oxygen for all the molecules of oxygen on Earth, the mass we obtain from this...
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In the case of systematic errors, the sources can be identified, and the errors can be subsequently minimized by addressing these sources. According to the source, systematic errors can be divided into sampling, instrumental, methodological, and personal errors.
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Micronutrients in Atopic Dermatitis: A Systematic Review.

Alexandra R Vaughn1, Negar Foolad2, Melody Maarouf3

  • 11 Department of Dermatology, University of California-Davis, Sacramento, CA.

Journal of Alternative and Complementary Medicine (New York, N.Y.)
|March 27, 2019
PubMed
Summary

Micronutrients like vitamin D may benefit atopic dermatitis (AD) patients, while deficiencies in selenium and zinc could worsen AD. More research is needed to confirm the role of other nutrients in managing this skin condition.

Keywords:
atopic dermatitiseczemamicronutrientsmineralsvitamins

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Area of Science:

  • Dermatology
  • Immunology
  • Nutritional Science

Background:

  • Atopic dermatitis (AD) pathophysiology involves immune dysfunction, genetics, and environment.
  • Nutritional status is crucial for immune function, prompting investigation into dietary factors in AD.
  • While food allergies are studied, the impact of micronutrients on AD risk and severity is less understood.

Purpose of the Study:

  • To systematically review the evidence on the association between oral micronutrients and atopic dermatitis.
  • To evaluate how various micronutrients influence AD risk and symptom severity.
  • To assess the impact of micronutrient supplementation on AD severity.

Main Methods:

  • Systematic literature search to identify studies on oral micronutrients and AD.
  • Review of 49 relevant studies.
  • Analysis of evidence for vitamins (C, E, D) and trace minerals (zinc, selenium, iron, copper, magnesium, strontium).

Main Results:

  • Weak associations found between vitamins C or E and AD.
  • Sufficient evidence suggests vitamin D supplementation benefits AD patients.
  • Selenium and zinc deficiencies may exacerbate AD symptoms.
  • Insufficient data exists for other vitamins and trace minerals' roles in AD.

Conclusions:

  • Oral micronutrients may play a role in atopic dermatitis management.
  • Current literature is limited, highlighting a need for more comprehensive randomized controlled trials (RCTs).
  • Further research is required to definitively establish the relationship between oral micronutrients and AD.