Featured Research

from universities, journals, and other organizations

Cancer therapies affect cognitive functioning among breast cancer survivors

Date:
April 20, 2012
Source:
H. Lee Moffitt Cancer Center & Research Institute
Summary:
Researchers have found that breast cancer survivors who have had chemotherapy, radiation or both do not perform as well on some cognitive tests as women who have not had cancer.

Researchers at Moffitt Cancer Center and colleagues at the University of South Florida and University of Kentucky have found that breast cancer survivors who have had chemotherapy, radiation or both do not perform as well on some cognitive tests as women who have not had cancer.

They published their study in the April 1 issue of Cancer.

"Survivors of breast cancer are living longer, so there is a need to better understand the long-term effects of cancer therapies, such as chemotherapy and radiation," said study lead author Paul B. Jacobsen, Ph.D., associate center director for Population Sciences.

To carry out their study, the researchers recruited 313 women being treated by either chemotherapy or radiotherapy for early stage breast cancer at Moffitt Cancer Center and the University of Kentucky Chandler Medical Center. Those who had undergone treatment for cancer were tested six months after treatment and then tested again 36 months after having completed treatment.

They also recruited a control group of women who did not have cancer. These participants were also tested at six months and 36 months.

Participants in all groups were within five years of age, and breast cancer patients were matched with non-cancer patients who lived in their same ZIP codes. Participants were tested cognitively with respect to processing speed (quick task completion under pressure), executive functioning (ability to shift cognitive sets and solve novel problems), the two domains expected to be most affected by chemotherapy. They were also tested with regard to verbal abilities.

"Our findings were partially consistent with prior research," explained Jacobsen. "We found that chemotherapy-treated patients performed worse than non-cancer controls in processing speed, executive functioning and verbal ability. These domains may be the domains most affected by chemotherapy."

The also found test results for the radiotherapy group to be similar to the results of those in the chemotherapy group. Additionally, they discovered that the non-cancer group improved in these cognitive abilities over time while the chemotherapy and radiotherapy groups did not. There were no differences in performance between the radiotherapy and chemotherapy groups, noted the researchers.

The researchers commented that they were fortunate for having included the radiotherapy groups because their results were so similar to the chemotherapy group. Had that group not been included, conclusions could have been drawn to suggest that the cognitive differences between the non-cancer group and the chemotherapy group were specific to chemotherapy.

"Since patients report cognitive problems that interfere with their daily activities, early workups should include tests to determine cognitive functioning prior to treatment," concluded Jacobsen. "Future research also needs to investigate factors that may affect both chemotherapy patients and those receiving radiotherapy. Providers may wish to communicate that such effects can accompany chemotherapy and radiation therapy."


Story Source:

The above story is based on materials provided by H. Lee Moffitt Cancer Center & Research Institute. Note: Materials may be edited for content and length.


Journal Reference:

  1. Kristin M. Phillips, Heather S. Jim, Brent J. Small, Christine Laronga, Michael A. Andrykowski, Paul B. Jacobsen. Cognitive functioning after cancer treatment. Cancer, 2012; 118 (7): 1925 DOI: 10.1002/cncr.26432

Cite This Page:

H. Lee Moffitt Cancer Center & Research Institute. "Cancer therapies affect cognitive functioning among breast cancer survivors." ScienceDaily. ScienceDaily, 20 April 2012. <www.sciencedaily.com/releases/2012/04/120420105946.htm>.
H. Lee Moffitt Cancer Center & Research Institute. (2012, April 20). Cancer therapies affect cognitive functioning among breast cancer survivors. ScienceDaily. Retrieved July 28, 2014 from www.sciencedaily.com/releases/2012/04/120420105946.htm
H. Lee Moffitt Cancer Center & Research Institute. "Cancer therapies affect cognitive functioning among breast cancer survivors." ScienceDaily. www.sciencedaily.com/releases/2012/04/120420105946.htm (accessed July 28, 2014).

Share This




More Health & Medicine News

Monday, July 28, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

$15B Deal on Vets' Health Care Reached

$15B Deal on Vets' Health Care Reached

AP (July 28, 2014) A bipartisan deal to improve veterans health care would authorize at least $15 billion in emergency spending to fix a veterans program scandalized by long patient wait times and falsified records. (July 28) Video provided by AP
Powered by NewsLook.com
Traditional African Dishes Teach Healthy Eating

Traditional African Dishes Teach Healthy Eating

AP (July 28, 2014) Classes are being offered nationwide to encourage African Americans to learn about cooking fresh foods based on traditional African cuisine. The program is trying to combat obesity, heart disease and other ailments often linked to diet. (July 28) Video provided by AP
Powered by NewsLook.com
West Africa Gripped by Deadly Ebola Outbreak

West Africa Gripped by Deadly Ebola Outbreak

AFP (July 28, 2014) The worst-ever outbreak of the deadly Ebola epidemic grips west Africa, killing hundreds. Duration: 00:48 Video provided by AFP
Powered by NewsLook.com
Trees Could Save More Than 850 Lives Each Year

Trees Could Save More Than 850 Lives Each Year

Newsy (July 27, 2014) A national study conducted by the USDA Forest Service found that trees collectively save more than 850 lives on an annual basis. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins