ADVERTISEMENT
2 /3 FREE ARTICLES LEFT THIS MONTH Remaining
Chemistry matters. Join us to get the news you need.

If you have an ACS member number, please enter it here so we can link this account to your membership. (optional)

ACS values your privacy. By submitting your information, you are gaining access to C&EN and subscribing to our weekly newsletter. We use the information you provide to make your reading experience better, and we will never sell your data to third party members.

ENJOY UNLIMITED ACCES TO C&EN

Biological Chemistry

Understanding ‘chemo brain’

Cancer drug carboplatin impairs neurotransmitter release in rats, a possible cause of cognitive decline after chemotherapy

by Michael Torrice
May 23, 2016 | APPEARED IN VOLUME 94, ISSUE 21

About 30% of cancer patients who receive chemotherapy later suffer from so-called chemo brain, a condition characterized by memory loss, attention deficits, and decreased problem-solving abilities. Scientists know little about how anticancer drugs lead to this cognitive decline. But a new study reports that treating rats with the drug carboplatin impairs the release of dopamine and serotonin, which are neurotransmitters that play key roles in many cognitive functions affected by chemo brain (ACS Chem. Neurosci. 2016, DOI: 10.1021/acschemneuro.5b00029). Michael A. Johnsonof the University of Kansas and colleagues observed that rats receiving carboplatin injections for four weeks performed slightly worse in a test of spatial memory than did animals receiving just saline solution. When the team studied brain slices from the carboplatin-treated rats, they found that dopamine and serotonin release had decreased by 42% and 55%, respectively, compared with slices from the animals getting saline. However, the total amount of dopamine and serotonin within neurons did not differ, suggesting that carboplatin treatment didn’t alter production of the neurotransmitters but instead affected the ability to release the neurotransmitters into synapses, Johnson says.

X

Article:

This article has been sent to the following recipient:

Leave A Comment

*Required to comment