Navigation Links
Dad's Family History of Breast, Ovarian Cancer Matters, Too
Date:10/30/2010

By Kathleen Doheny
HealthDay Reporter

THURSDAY, October 28 (HealthDay News) -- Women with female relatives who have had breast or ovarian cancer are often acutely aware of their own increased risk and may seek genetic counseling.

But they should also pay attention to their father's family history, one genetic counselor warns.

The inherited genetic predisposition to breast and ovarian cancer is mostly caused by a mutation in one or both of the BRCA1 or BRCA2 tumor suppressor genes, said Jeanna McCuaig, a genetic counselor at Princess Margaret Hospital in Toronto. And, she pointed out, "if your mom or your dad has a BRCA1 or BRCA2 mutation, you would have a 50 percent chance of inheriting it from either one."

That explains why a father's family history is as important to consider as a mother's, she said.

"Anecdotally, I've had patients come in and say, 'I never thought about my dad's side,'" McCuaig said. She decided to do some research into the implications of that statement. "We took two years of patient charts referred to our clinic, referred as new patients, and looked to see how many had relatives [with breast or ovarian cancers] on the mom's side versus the dad," she said.

She found that patients who came to her Familial Breast and Ovarian Cancer Clinic at the hospital were more than five times more likely to be referred with a maternal family history of breast or ovarian cancer than a paternal history of such cancers.

To get the word out, she wrote a commentary on the subject, published online in The Lancet Oncology.

The lack of awareness that women may inherit a mutated gene from their fathers is also present among many health-care providers, McCuaig suspects. This is problematic, she noted in her study, because they often serve as gatekeepers for referrals to specialized clinics, including those that do genetic testing.

If a woman tests positive for a BRCA1 or BRCA2 mutation, she has about a 50 percent to 85 percent risk of breast cancer in her lifetime, said McCuaig, citing various studies, and about a 20 percent to 44 percent risk of ovarian cancer.

In contrast, the lifetime risk of developing ovarian cancer in the general population is 1.4 percent, according to the National Cancer Institute, which also states that women who inherit a BRCA1 or BRCA2 mutation are about five times as likely to develop breast cancer as women without such a mutation.

Men with the BRCA 2 mutation have a 6 percent risk of breast cancer, McCuaig said, compared to less than 1 percent in the general male population. Men with BRCA1 or BRCA2 mutation also have a higher prostate cancer risk than other men, she said.

According to the study, about 20 percent to 30 percent of the more than 690,000 women diagnosed with breast cancer and nearly 190,000 diagnosed with ovarian cancer in developed countries have a family history of cancer, the study noted, and between 5 percent and 10 percent are due mostly to an inherited mutation in one of the BRCA1 and BRCA2 genes.

Women and men should take into account the cancer history on both their parents' sides of the family, McCuaig said, and health-care providers should ask about both sides when taking a medical history.

"It's an important point," said Dr. Len Lichtenfeld, deputy chief medical officer for the American Cancer Society. "For those of us in cancer treatment, it's not new information, but it's very important for patients and family to be aware of this and not forget" to consider the father's history.

"The bottom line? The family history [of breast and ovarian cancer] in the women in your father's family is every bit as important as the family history of the women on your mother's side," he said.

More information

To learn about BRCA1 and BRCA2 mutations, visit the U.S. National Cancer Institute.

SOURCES: Jeanna McCuaig, M.Sc., genetic counselor, Familial Breast and Ovarian Cancer Clinic, Princess Margaret Hospital, Toronto; Len Lichtenfeld, M.D., deputy medical officer, American Cancer Society, Atlanta; Oct. 24, 2010, The Lancet Oncology
'/>"/>

Copyright©2010 ScoutNews,LLC.
All rights reserved  

Related medicine news :

1. Postpartum Depression Can Strike New Dads
2. AskDads.com Launches the First Social Networking Site Exclusively for Dads
3. Even women with a family history can control breast cancer risk
4. University of Miami receives grant to increase the number of family nurse practitioners
5. Anorexic Teens May Gain From Whole-Family Treatment
6. Friends, family detect early Alzheimers signs better than traditional tests
7. McGill to host inter-university Family Medicine Student Symposium
8. Progress against child deaths will lag until family, community care prioritized
9. Male breast cancer in family leads to high perception of risk, low likelihood of genetic counseling
10. Guided Care improves physician satisfaction with patient/family communications
11. Trek Introduces All New 2011 Madone Family of Road Bikes
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Dad's Family History of Breast, Ovarian Cancer Matters, Too
(Date:10/13/2017)... (PRWEB) , ... October 13, 2017 , ... Apple ... care services, staged a mock evacuation of the facility as part of a disaster ... Fire Department, Echo Hose EMS and Shelton City Emergency Manager, as well as the ...
(Date:10/13/2017)... , ... October 13, 2017 , ... Global Healthcare Management’s ... Alexandria Park in Milford, NJ. This free event, sponsored by Global Healthcare Management’s ... The fun run is geared towards children of all ages; it is a ...
(Date:10/13/2017)... ... October 13, 2017 , ... “The Journey: From the ... danger possible to save lost souls in the Philippines. “The Journey: From the Mountains ... a dedicated teacher of the Bible. She has taught all ages and currently teaches ...
(Date:10/12/2017)... ... October 12, 2017 , ... Planet Fitness, one of the largest and ... plans to open a flagship location in Covington, LA at 401 N. U.S. Highway ... store next to Office Depot in the Holiday Square shopping center. Its location allows ...
(Date:10/12/2017)... ... 2017 , ... Asante, a nationally recognized health system in ... existing home health joint venture through an agreement, effective October 1, 2017, to ... home health company with Asante, delivering clinically integrated care, for the past eight ...
Breaking Medicine News(10 mins):
(Date:10/10/2017)... -- NDS received FDA 510(k) clearance in May 2017 for its highly ... designed for endoscopy environments. An innovative secondary monitor solution, ZeroWire ... support the improvement of patient outcomes, procedural efficiency, and the lowering ... ... ...
(Date:10/4/2017)... 4, 2017  South Korean-based healthcare product Development Company ... "cprCUBE" on Kickstarter. The device will educate the user ... with better efficiency compared to the dated and pricey ... on efficacy of the compression for a more informed ... goal to raise $5,000. ...
(Date:10/2/2017)... 2017  Eli Lilly and Company (NYSE: ... third quarter of 2017 on Tuesday, October 24, 2017. ... day with the investment community and media to further ... call will begin at 9 a.m. Eastern time. Investors, ... webcast of the conference call through a link that ...
Breaking Medicine Technology: