Tail hair as an indicator of environmental exposure of cows to lead and cadmium in different industrial areas

2007 ◽  
Vol 66 (1) ◽  
pp. 127-131 ◽  
Author(s):  
R.C. Patra ◽  
D. Swarup ◽  
Ram Naresh ◽  
Puneet Kumar ◽  
D. Nandi ◽  
...  
1988 ◽  
Vol 78 ◽  
pp. 127-129 ◽  
Author(s):  
J Staessen ◽  
P Bruaux ◽  
F Claeys-Thoreau ◽  
P DePlaen ◽  
G Ducoffre ◽  
...  

2018 ◽  
Vol 23 (5) ◽  
pp. 259-269 ◽  
Author(s):  
Da-An Huh ◽  
Yun-Hee Choi ◽  
Myung Sun Ji ◽  
Kyong Whan Moon ◽  
Seok J. Yoon ◽  
...  

Previous studies have reported that exposure to lead and cadmium can damage the inner ear receptor, which perceives high-frequency sounds. However, few studies have used the pure-tone average (PTA), including high-frequency ranges, for the estimation of hearing loss caused by lead and cadmium exposure. We estimated hearing loss using the PTA test, in low-frequency, speech frequency, and high-frequency ranges and compared the differences in the results using 3 PTA calculation methods. We analyzed the data of 2,387 participants, between the ages of 19 and 85 years, that were obtained from the Korea National Health and Nutrition Examination Survey (KNHANES) of 2010–2012. A dose-response relationship between hearing loss and heavy metal exposure was observed in the high-frequency method after adjustment for confounding factors. When using the high-frequency PTA, it was found that doubling of the levels of lead and cadmium in the blood was associated with a 1.88- (95% CI 1.11–3.17) and 1.89-fold (95% CI 1.02–3.50) increase in the OR for hearing loss. In the case of the low-frequency and speech frequency PTA, however, there were no significant relationships between hearing loss and the concentrations of lead and cadmium in the blood. The outcomes of the present study suggest that the estimation of hearing loss caused by environmental exposure to lead and cadmium is affected by the frequencies used in the PTA calculation.


2014 ◽  
Vol 2014 (1) ◽  
pp. 2271
Author(s):  
José A. Menezes-Filho* ◽  
Lorena S. Nunes ◽  
Diego A. Andrade ◽  
Júnia R. D. Ferreira ◽  
Gustavo S. Viana ◽  
...  

2016 ◽  
Vol 145 ◽  
pp. 1-8 ◽  
Author(s):  
Azusa Hara ◽  
Wen-Yi Yang ◽  
Thibault Petit ◽  
Zhen-Yu Zhang ◽  
Yu-Mei Gu ◽  
...  

2019 ◽  
Vol 15 (1) ◽  
pp. 33-37 ◽  
Author(s):  
Вера Молвинских ◽  
Vera Molvinskikh ◽  
Надежда Белоконова ◽  
Nadezhda Belokonova ◽  
Татьяна Еловикова ◽  
...  

The inhabitants of industrial areas are influenced by anthropogenic factors. Harmful chemicals enter the body from the air, drinking water, food and are found in the oral fluid, hard tooth tissues, dental deposits, biopsy of tissue structures and contribute to the development of caries and inflammatory periodontal diseases. Toothpastes and mouthwashes are used for prevention of major dental diseases. The toothpastes contain a variety of abrasives: silicon dioxide, calcium carbonate, titanium dioxide, calcium bicarbonate, hydroxyapatite, which can act as adsorbents of heavy metal compounds. Biomonitoring using inductively coupled plasma mass spectrometry (ICP-MS) allows to determine the micro-quantities of metals in blood, urine, human milk, hair and oral fluid. The study of oral hygiene products showed that toothpastes and mouthwashes, used by patients for prevention and treatment of inflammatory periodontal diseases, have an adsorption activity for metal ions. The article evaluates the adsorption efficiency of medical and preventive toothpaste relative to the metal ions (chromium, manganese, cadmium, lead, etc.) in the oral fluid of the inhabitants of industrial areas. The use of adsorption-effective toothpaste twice a day for two weeks showed a significant decrease in the concentration of metal ions in the mixed saliva of the inhabitants which are under the influence of unfavorable environmental factors. When using a toothpaste containing silicon and titanium oxides, the concentration of manganese, chromium, arsenic, lead and cadmium ions in the oral fluid decreases within 2 weeks. The modern method of ISP-MS is advisable to use for high-precision monitoring of the oral fluid ion composition in patients living in the industrial areas.


1996 ◽  
Vol 88 ◽  
pp. 60
Author(s):  
Antonio J. García-Fernández ◽  
Pedro María ◽  
Miguel Motas-Guzmán ◽  
Isabel Navas ◽  
Isabella Riboni ◽  
...  

2016 ◽  
Vol 31 (4) ◽  
pp. 489 ◽  
Author(s):  
Yong-Dae Kim ◽  
Sang-Yong Eom ◽  
Dong-Hyuk Yim ◽  
In-Soo Kim ◽  
Hee-Kwan Won ◽  
...  

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