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:3/24/2017)... ... March 24, 2017 , ... ... soil, dredged material, and hazardous and non-hazardous materials announced today the acquisition of ... This acquisition will add four additional processing facilities and a vast array of ...
(Date:3/24/2017)... , ... March 24, 2017 , ... ... third world countries to hospitals in the United States, it’s a threat that ... the current obstacles facing infection prevention and offers strategies for the healthcare community ...
(Date:3/24/2017)... ... March 24, 2017 , ... According to a new study by ... it does not obey the rules Congress has directed the CBO to follow. The ... GOP reform would restore. Yet, it estimates a reduction in employer-based coverage due to ...
(Date:3/24/2017)... Lake Orion, MI (PRWEB) , ... March 24, ... ... providing insurance assistance, financial planning, and related services to families and business owners ... charity initiative aimed at feeding regional families struggling with financial difficulties. , The ...
(Date:3/24/2017)... ... March 24, 2017 , ... As ... to create a communications platform that positions them as the go-to thought leader ... reinvented their online publication as an always-on, always-fresh news, views and advocacy engine, ...
Breaking Medicine News(10 mins):
(Date:3/24/2017)... -- HealthMine surveys with 9,250 insured consumers fielded from February ... want help from their plans in five key areas: ... 2) help closing gaps in care, 3) better digital ... relevant, real-time guidance. Meeting these needs is essential to ... A Reason to Stay Engaged in Health ...
(Date:3/23/2017)... Mar 23, 2017 Research and Markets has ... Trends - Industry Forecast to 2025" report to their offering. ... The Global ... 6.9% over the next decade to reach approximately $3.5 billion by ... forecasts for all the given segments on global as well as ...
(Date:3/23/2017)... March 23, 2017 ... created through extensive primary research (inputs from industry ... aims to present the analysis of global heart ... (Replacement and Repair); Replacement Procedure By Technique (Mechanical, ... Technique (Surgical Devices, Balloon Valvuloplasty, Transcatheter Mitral Valve ...
Breaking Medicine Technology: