Related Experiment Video
Updated: Aug 8, 2026

10:14
Synthesis and Purification of Iodoaziridines Involving Quantitative Selection of the Optimal Stationary Phase for Chromatography
Published on: May 16, 2014
[Iodine deficiency in the Russian Federation]
Vestnik Rossiiskoi Akademii Meditsinskikh Nauk
|August 24, 2001
Summary
Iodine deficiency (ID) surveys in Russia revealed lower iodine levels in rural areas and East Russia, correlating with increased goiter and hypothyroidism. Dietary iodine intake was below recommended levels, prompting the testing of preventive measures.
Area of Science:
- Endocrinology
- Public Health
- Epidemiology
Background:
- Iodine deficiency (ID) poses significant public health challenges, particularly in developing regions.
- Assessing ID prevalence and severity requires standardized methods and indicators.
Purpose of the Study:
- To conduct epidemiological surveys on iodine deficiency in Russia between 1992-1999.
- To evaluate the prevalence and severity of ID and related conditions like goiter, hypothyroidism, and endemic cretinism.
- To analyze dietary and water iodine intake and test preventive strategies.
Main Methods:
- Epidemiological surveys conducted in 30 Russian regions from 1992 to 1999.
- Examination of 40,999 individuals aged 7-17 years.
- Application of WHO standards for estimating ID prevalence and severity.
Main Results:
- Lower iodine concentrations were observed in rural dwellers compared to urban populations in Central Russia.
- ID was more pronounced in East Russia, with some areas experiencing severe deficiency (median 16-20 µg/l).
- Goiter prevalence was higher in rural children and East Russia, with some discrepancies between ID levels and goiter incidence.
Conclusions:
- Dietary and water iodine intake in most Russian regions was below recommended levels.
- Increased ID severity correlated with higher incidences of goiter, hypothyroidism, and endemic cretinism.
- Preventive measures using iodinated foodstuffs and medicaments were tested to combat ID-related diseases.
Related Concept Videos
Oogenesis
In human women, oogenesis produces one mature egg cell or ovum for every precursor cell that enters meiosis. This process differs in two unique ways from the equivalent procedure of spermatogenesis in males. First, meiotic divisions during oogenesis are asymmetric, meaning that a large oocyte (containing most of the cytoplasm) and minor polar body are produced as a result of meiosis I, and again following meiosis II. Since only oocytes will go on to form embryos if fertilized, this unequal...
Aryldiazonium Salts to Azo Dyes: Diazo Coupling
The reaction of weakly electrophilic aryldiazonium (also called arenediazonium) salts with highly activated aromatic compounds leads to the formation of products with an —N=N— link, called an azo linkage. This reaction, presented in Figure 1, is known as diazo coupling and occurs without the loss of the nitrogen atoms of the aryldiazonium salt. Highly activated aromatic compounds such as phenols or arylamines favor the diazo coupling reaction. The coupling generally occurs at the para position.
Electrophilic Aromatic Substitution: Fluorination and Iodination of Benzene
Bromination and chlorination of aromatic rings by electrophilic aromatic substitution reactions are easily achieved, but fluorination and iodination are difficult to achieve. Fluorine is so reactive that its reaction with benzene is difficult to control, resulting in poor yields of monofluoroaromatic products. To address this, Selectfluor reagent is used as a fluorine source in which a fluorine atom is bonded to a positively charged nitrogen.
Redox Titration: Iodimetry and Iodometry
Iodometry and iodimetry are analytical methods used to determine the concentration of oxidizing or reducing agents using iodine. In iodometric titrations, the oxidizing analyte solution is usually acidified and treated with an excess of iodide ions, which generates an equivalent amount of iodine in equilibrium with triiodide. The released iodine is subsequently titrated directly against a standardized reducing agent. As the dilute iodine color becomes pale yellow, a few drops of freshly...
Vitamins
Vitamins, derived from the Latin word for life, are essential organic substances required in small quantities for optimal growth and overall well-being. Unlike other organic nutrients, vitamins don't act as sources of energy or building materials but rather facilitate these nutrients' utilization by the body. Vitamins are predominantly coenzymes, assisting enzymes in specific chemical actions, like the oxidation of glucose for energy involving B vitamins. Most vitamins are not produced in our...
Minerals
Minerals are essential nutrients that the human body needs in small amounts to work properly. They play a vital role in many bodily functions, such as building strong bones and transmitting nerve impulses. Some minerals are needed for hormone production or to maintain a normal heartbeat. Major minerals include calcium, phosphorus, potassium, sulfur, sodium, chlorine, and magnesium, while trace minerals include iron, manganese, copper, iodine, zinc, cobalt, fluoride, and selenium.

