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Level of neurotoxic metals in amyotrophic lateral sclerosis: A population-based case–control study
Abstract
The association between exposure to toxic metals and amyotrophic lateral sclerosis (ALS) was explored in a population-based case-control study in the Sardinia island (Italy), a region characterized by elevated rates of ALS cases. In 34 patients with ALS (mean age, 62 ± 10 years) and 30 controls (mean age, 65 ± 11 years), Al, Cd, Hg, Mn and Pb were determined in blood, hair and urine by sector field inductively coupled mass spectrometry. Results indicated that, in blood, concentrations of Al (p=0.045) and Pb were higher (p=0.026) in ALS patients than in control subjects. In hair, a depletion of Al (p=0.006) and Mn (p=0.032) concentrations in ALS subjects respect to controls was found. In urine, no significant differences between cases and controls were observed. Thus, some metals seemed to be associated with ALS degeneration, but a definitive conclusion is still far considering the multiple risk factors (genetic mutations, environmental toxicants and stressors) involved in the disease. Finally, the interpretation that deregulated metal concentrations can be a consequence of the degenerative process, rather than a cause, is also valid.
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“Also, blood lead levels in ALS patients have been reported to be significantly higher than controls.”
From Risk factors for amyotrophic lateral sclerosis: A regional United States case‐control study (2021) · cites this paper as [33]
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Cited by
Risk factors for amyotrophic lateral sclerosis: A regional United States case‐control study
Andrew, A. S., Bradley, W. G., Peipert, D., Butt, T., Amoako, K., Pioro, E. P., Tandan, R., Novak, J., Quick, A., Pugar, K. D., et al. (2021) · Muscle & Nerve · doi:10.1002/mus.27085 · Cited by 54
Metadata
- Authors
- Bocca, B., Forte, G., Oggiano, R., Clemente, S., Asara, Y., Peruzzu, A., Farace, C., Pala, S., Fois, A. G., Pirina, P., & Madeddu, R.
- Venue
- Journal of the Neurological Sciences
- Publisher
- Elsevier BV
- Published
- 2015-12
- Volume
- 359
- Issue
- 1-2
- Pages
- 11-17
- ISSN
- 0022-510X
- Cited by
- 54
- References
- 88
- Language
- en
- Licence
- www.elsevier.com/tdm/userlicense/1.0/ (tdm)
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