Parkinson’s disease (PD) is the second most common neurodegenerative disease. Much data has linked the etiology of PD to a variety of environmental factors.
The majority of cases are thought to arise from a combination of genetic susceptibility and environmental factors. Chronic exposures to dietary factors, including meat, have been identified as potential risk factors.
Although heterocyclic amines that are produced during high-temperature meat cooking are known to be carcinogenic, their effect on the nervous system has yet to be studied in depth. In this study, we investigated neurotoxic effects of 2-amino-1-methyl-6-phenylimidazo[4,5-b]pyridine (PhIP), a highly abundant heterocyclic amine in cooked meat, in vitro. We tested toxicity of PhIP and the two major phase I metabolites, N-OH-PhIP and 4′-OH-PhIP, using primary mesencephalic cultures from rat embryos. This culture system contains both dopaminergic and nondopaminergic neurons, which allows specificity of neurotoxicity to be readily examined.
We find that exposure to PhIP or N-OH-PhIP is selectively toxic to dopaminergic neurons in primary cultures, resulting in a decreased percentage of dopaminergic neurons. Neurite length is decreased in surviving dopaminergic neurons. Exposure to 4′-OH-PhIP did not produce significant neurotoxicity.
PhIP treatment also increased formation of oxidative damage markers, 4-hydroxy-2-nonenal (HNE) and 3-nitrotyrosine in dopaminergic neurons.
Pretreatment with N-acetylcysteine was protective. Finally, treatment with blueberry extract, a dietary factor with known antioxidant and other protective mechanisms, prevented PhIP-induced toxicity. Collectively, our study suggests, for the first time, that PhIP is selectively toxic to dopaminergic neurons likely through inducing oxidative stress.
http://toxsci.oxfordjournals.org/content/early/2014/04/25/toxsci.kfu060.abstract.html?papetoc
Published by connie dello buono
Connie Dello Buono is based in Sunnyvale California. Her first ebook is about women's health, Birthing Ways Healing Ways and her recent one is about cancer prevention, Curated Healing Ways. She had helped women have holistic childbirth as childbirth educator, founded Motherhealth, to serve seniors in the bay area with holistic caregivers and blogs at www.clubalthea.com with more than 10,000 health and finance related posts.
Connie trains her own caregivers, which are the favorites of most bay area seniors who are home bound and alone.
She is active in the rehab and nursing facilities, volunteering on music and movement for seniors.
She is a member of Lion's club and offered scholarships to students in the Philippines.
She is active at churchinsunnyvale.us and has Fridays Bible home study in Sunnyvale using the recovery version of the Bible , free at biblesforamerica.us
She loves dancing and teaching and her courses can be found at
https://teachclub.com/@thriveafter60
She is California Life Insurance licensed providing life insurance for older adults with health issues and helping women retire safely with income for life.
at menloassetca.com , she helps with 401k rollover.
3 Benefit plans
- Mortgage protection using term life insurance to pay for mortgage balance in event of death
- Final Expense plan using Single Issue Whole Life Insurance, with cash back, disability benefit and guaranteed in the presence of health issues
- Fixed Index Annuity retirement plan for safe, accessibility, less fees, less taxes, avoids probate as it goes directly to beneficiaries, rate of return with no downside market participation.
She brings compassion and understanding to the needs of her clients, bringing holistic approach in health and life insurance. Her goal is to free families from worries especially during covid with caregivers and life insurance in the presence of health issues, especially for women.
She can be reached at 408-854-1883 , motherhealth@gmail.com
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