scholarly journals Comparing the radioactive contamination of marsh Labrador tea (Ledum palustre L.) Over different periods since Chernobyl accident

2020 ◽  
Vol 5 (10 (107)) ◽  
pp. 35-43
Author(s):  
Volodymyr Krasnov ◽  
Oleksandr Orlov ◽  
Oleh Zhukovskyi ◽  
Mariia Korbut ◽  
Iryna Davydova ◽  
...  
Author(s):  
Olga Merzlova

One of the measures to eliminate the consequences of the Chernobyl accident was the exclusion of highly contaminated land from agricultural use. Due to the positive dynamics of the radiation situation, the issue of land return becomes relevant. However, in the period of exclusion of these lands the land clearance degradation processes were developing. The second part of the article is devoted to the issue of economic evaluation of the expediency of land return and the mutual coordination of the results of separate stages of complex ecological and economic evaluation. The research was carried out in Mogilev branch Institute of radiology (Republic of Belarus).


2020 ◽  
Vol 0 (6) ◽  
pp. 24-30
Author(s):  
Olga Merzlova

One of the measures to eliminate the consequences of the Chernobyl accident was the exclusion of highly contaminated land from agricultural use. During the natural decay of radionuclides there is a decrease in the activity of 137Cs and 90Sr in the soil. The issue of land return becomes relevant. The article describes the main stages of formation of the system of criteria and indicators of ecological and economic evaluation of the expediency of land return. The first part of the article is devoted to the issue of radiological evalation.


2013 ◽  
Vol 124 ◽  
pp. 50-56 ◽  
Author(s):  
S.B. Gulin ◽  
N.Yu. Mirzoyeva ◽  
V.N. Egorov ◽  
G.G. Polikarpov ◽  
I.G. Sidorov ◽  
...  

Health of Man ◽  
2021 ◽  
pp. 47-52
Author(s):  
Ihor Gorpynchenko ◽  
Yurii Gurzhenko ◽  
Volodymyr Spyrydonenko ◽  
Yevhen Lytvynets

There are 143 men (group I) with idiopathic infertility in the form of asthenozoospermia of the II degree living in the territories of the Kiev region (Poles’ky, Chernobylsky, Ivan’kovsky, Borodyansky, Vyshgorodsky districts) were investigated in the Department of Sexual Pathology and Andrology of the SI «Institute of Urology of the National Academy of Medical Sciences of Ukraine» and exposed to ionizing radiation due to the Chernobyl accident in 1986. All individuals in the I group were born from parents who were in the accident at the Chernobyl nuclear power station in the area of radioactive contamination and permanently resided in areas with a high level of radioactivity. The control group was made up of persons born and living in the Ivano-Frankivsk region with a similar condition (group II, n=57). The mean age of the studied group I was 28,3±2,4 years, and persons of the II group were 30,1±2,8 years. Diagnosis of II was performed ambulatory in accordance with WHO and Ministry of Health of Ukraine standards. The study was to study and compare spermogram parameters in patients from both groups. It has been established that the reproductive problems of men with idiopathic infertility living in radiation-polluted areas of the Kiev region of Ukraine consist in a significant violation of the quality indicators of ejaculate (mobility by the pool A+B is less than 1,6 times, p<0,05) correlating with modifications of physicochemicals (the average time of liquefaction is 1,4 times greater, p<0,05) and biochemical (decrease of levels of fructose by 2,2 times, citrate – by 1,6 times, p<0,01–0,05) data characterizing the effect of ionizing radiation, as one one of the leading factors of male genital function violation. The study found that the level of general indicators of spermogramm is significantly worse in the regions of Ukraine who were exposed to radioactive contamination due to the Chernobyl accident, in contrast to the indicators of persons from conditionally pure regions.


Molecules ◽  
2021 ◽  
Vol 26 (23) ◽  
pp. 7121
Author(s):  
Risto I. Korpinen ◽  
Anna-Liisa Välimaa ◽  
Jaana Liimatainen ◽  
Susan Kunnas

Traditionally, arctic Finnish Angelica (Angelica archangelica L.), marsh Labrador tea (Rhododendron tomentosum, syn. Ledum palustre) and common tansy (Tanacetum vulgare) have been used as medicinal herbs in folklore medicine. However, these underutilised plants are a source of, e.g., oil-based compounds, which could benefit many modern applications implemented by the green chemistry extraction methods, as well. We extracted Angelica, marsh Labrador tea and common tansy by non-toxic and recyclable extraction methods, i.e., hydrodistillation and supercritical carbon dioxide (scCO2) extraction; characterised the essential oils (EOs) and scCO2 extracts by combination of gas chromatography and mass spectrometry (GC-MS), and in addition, analysed the antimicrobial properties. As expected for Angelica root and common tansy inflorescence, the scCO2 extraction method produced less amount of volatile compounds compared to hydrodistillation. On the other hand, more coumarins, alkanes, fatty alcohols and fatty acids were obtained. Additionally, sesquiterpenoids palustrol and ledol were predominant compounds in both marsh Labrador tea EO and scCO2 extract. According to our results, however, all the EOs and scCO2 extracts showed broad spectrum of antimicrobial activities against the selected microbes, but the effects were extract-specific. The strongest and broadest antimicrobial activities were performed by marsh Labrador tea scCO2 extract, which showed extremely strong effect on Staphylococcusaureus subsp. aureus and strong effect on Candida albicans.


Author(s):  
Bhuwanendra Singh ◽  
Jitendra Gupta ◽  
Rohit Mohan ◽  
Reena Gupta ◽  
Kanchan Pal

The current review article is based on the facts to reveal the biological potentials of the genus ledum, and specie palustre. Although in the article all the species are well described with their distribution in all over the world and their pharmacological activities are also discussed. Rhododendron tomantosum is also known as Marsh Tea or northern Labrador tea, which is an evergreen shrub having the height of about 40 cm and the plant has about ten species in all over the world. Article has very informative aspect regarding Hypouricemic Significance of Ledum palustre (L. palustre), its chemical compounds extracted and analyzed by different spectroscopic and chromatographic techniques to report the active principles from the oil of the Rhododendron tomantosum fresh leaves. The main active compounds were found are given as (41.0–43.4%) ledol (23.3–26.7%) and ascaridole (15.1–4.5%). L. palustre has a very significant role in the gout and arthritis occurs due the presence of high amount of uric acid in the blood plasma. Various dosage forms are mentioned in the review article to explore the potentials of the drug. Hence according to literature if L. palustre is significantly capable to reduce the high level of the uric acid if give in the potency if 30 c (diluted 30 times)) and 1 M ((1000 dilutions) to the patients, and may be a good alternative to the allopurinol. So, this drug is frequently used in the homeopathic system of medicine to get the hypouricemic significance in the human beings.


1989 ◽  
Vol 136 (4) ◽  
pp. 267-273 ◽  
Author(s):  
P. Skende ◽  
Xh. Myteberi ◽  
M. Kedhi ◽  
R. Kushe

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