Tuesday, October 9, 2018

Weight Gain Associated with TNBC Risk

In a study of postmenopausal women, participants who lost weight had a lower risk of developing triple-negative breast cancer than those who maintained or gained weight. The research was published online in CANCER, a journal of the American Cancer Society.

The findings suggest that weight loss may help lower postmenopausal women’s breast cancer risk. [NOTE: I was postmenopausal and I lost weight right before I was diagnosed with TNBC—both times.]

Although obesity has been strongly related to breast cancer risk, studies examining whether weight loss might reduce postmenopausal women’s risk have provided mixed results. To examine the issue, Rowan Chlebowski, MD, PhD, of the City of Hope National Medical Center in Duarte, California, and his colleagues analyzed information on 61,335 women participating in the World Health Initiative Observational Study who had no prior breast cancer and had normal mammogram results. The women’s body weight, height, and body mass index were assessed at the start of the study and again 3 years later. 

During an average follow-up of 11.4 years, there were 3,061 new cases of invasive breast cancer diagnosed. Women with weight loss at 5 percent or more had a 12 percent lower breast cancer risk compared with stable weight women, with no interaction by body mass index. Weight gain of 5 percent or more was associated with a 54 percent higher incidence of triple negative breast cancer.

“Our study indicates that moderate, relatively short-term weight reduction was associated with a statistically significant reduction in breast cancer risk for postmenopausal women,” said Dr. Chlebowski. “These are observational results, but they are also supported by randomized clinical trial evidence from the Women's Health Initiative Dietary Modification trial where, in a randomized clinical trial setting, adopting a low-fat dietary pattern that was associated with a similar magnitude of weight loss resulted in a significant improvement in breast cancer overall survival. These findings, taken together, provide strong correlative evidence that a modest weight loss program can impact breast cancer.”

Friday, October 5, 2018

Nanoparticles Improve TNBC treatment

The chemotherapy drug doxorubicin encapsulated in nanoparticles an be especially effective in treating triple-negative breast cancer, according to a study published in Precision Nanomedicine.   
Researchers found that increased cell kill in triple-negative breast cancer cells was associated with the smallest size of nanoparticles and the slowest release of doxorubicin.
"Nanomedicine is a very exciting avenue in modern drug development," said Adam Friedman, MD, director of the Supportive Oncodermatology Clinic at GW Cancer Center, professor of dermatology at the George Washington School of Medicine and Health Sciences, and senior author of the study. "Nanotechnology offers many benefits, including the ability to purposefully customize your drug or diagnostic at the atomic scale, enhancing its ability to interact with its biological target and improve outcomes and potentially safety."
Friedman acknowledges that this study is an initial step, but it "provides clues for new potential strategies utilizing and manipulating nanotechnology to overcome cancer cell drug resistance. We have our work cut out for us, but this study shows that we are moving in the right direction."

Wednesday, October 3, 2018

Eating Bacon Might Increase Your Breast Cancer Risk

A new study in the International Journal of Cancer reviewed previous research on the link between meat consumption and breast cancer risk and concluded that processed meat increases your breast cancer risk significantly. This includes bacon, ham,  sausage, hot dogs, salami, and beef jerky.

Researchers found that eating processed meat was associated with a 9% higher breast cancer risk. Interestingly, they found no significant association between red (unprocessed) meat intake and risk of breast cancer. Risk was increased in both ER-negative and ER-positive cancers. Of the 15 studies, two found a greater link between a diet of processed meat and ER-negative cancers.  

"Cutting down processed meat seems beneficial for the prevention of breast cancer,” said lead author Dr. Maryam Farvid, of the Harvard T.H. Chan School of Public Health.

Monday, June 4, 2018

TNBC patients with high T-cell signatures may have higher survival rates

Here’s one way triple-negative cancer works, according to researchers at the University of Michigan Rogel Cancer Center:
Tumor cells reprogram metabolic pathways to gain control over a type of immune cell that allows cancer growth.
Here’s the technical explanation: Myeloid-derived suppressor cells that live in and around a cancerous tumor encourage a stem cell-like growth that’s linked to TNBC. The more of these suppressor cells a patient has, the worse the outcome. This means the patient’s immune system isn’t strong enough to fight against the tumor.
And when there are a large number of myeloid-derived suppressor cells, immunotherapy treatments tend to be ineffective because the immune T-cells that immunotherapy targets are suppressed.
By looking at triple-negative breast cancer cells, researchers found that the metabolic process by which cells break down glucose also regulates the expression of a specific isoform that in turn causes more suppressor cells to develop. The immune system can’t mount enough of an assault on the tumor cells, which translates to poor outcomes in some TNBC patients. 
“We hope that by understanding the biology better, it may lead to new ways to help these patients,” says Weiping Zou, M.D., Ph.D., the Charles B. de Nancrede Professor of Surgery, Pathology, Immunology and Biology at the University of Michigan.
Looking at samples from 250 triple-negative breast cancer patients, researchers found that when the metabolic pathway for glycolysis was enriched, so were the immune suppressor cells — and this linked with worse overall survival. In contrast, tumors with a high T-cell signature exhibited fewer of these suppressor cells and the patients had better outcomes.
The study is published in Cell Metabolism.

Wednesday, February 21, 2018

What if the news is really bad? What do we want from our doc?

"Doctors still are underprepared for these difficult discussions.
They tend to focus on the disease and not the patient."

Imagine you get the worst news possible: You have late stage cancer. Your doctor lays out the treatment options: chemo, radiation, surgery. You hear lots of numbers, some of them probably related to your prognosis, but you’ve just been told you have cancer. They make no sense. You trust the doc, as do many patients, so you do what the doc tells you. It’s all about a cure.
What if, instead of burying you with data, the doctor instead sat down, looked you in the eye, and clearly and honestly explained your prognosis, then began talking about making you comfortable and giving you the best quality of life possible, but did not promise a cure.
Which doctor would you trust most?  

Monday, January 22, 2018

Breastfeeding Cuts TNBC Risk in Younger Women

Women under the age of 50 who breastfed for at least 24 months over their lifetime had a lower risk of developing triple-negative breast cancer, in a recent large-scale study conducted through multiple breast cancer research organizations. For women with three or more full-term pregnancies, risk increases two-fold if they did not breastfeed or only did so for less than a year. No increase in risk was seen for women who breast-fed for more than a year.  The  study was led by the Cancer Prevention Institute of California and epublished ahead of print on January 13 in the International Journal of Cancer.

None of these associations were observed among women age 50 or older.

So, that's why breastfeeding both my kids did not help me. I was 60 at diagnosis.

The study was based on data from 5,669 women who participated in the San Francisco Bay Area Breast Cancer Study, the Northern California site of the Breast Cancer Family Registry, and the Los Angeles County Asian American Breast Cancer Study. Of these, 558 had TNBC.

Thursday, November 16, 2017

TNBC Tied To Type 2 Diabetes in African-American Women

African-American women with type 2 diabetes had a higher risk of developing estrogen receptor (ER)-negative breast cancer, which includes TNBC, in research published in Cancer Research, a journal of the American Association for Cancer Research.  

Here’s what’s really interesting: The association was observed only among women with BMIs under 30, which could mean that abnormal metabolic status may play a larger role in ER-negative breast cancer than obesity.

The results showed an increased risk of ER-negative breast cancer primarily in black women who had type 2 diabetes for at least five years. Researchers found no association with ER-positive breast cancer in the same group.

African-American women who get breast cancer are more likely to get TNBC than white women, with double the incidence as compared to white women, according to the paper’s author, Julie R. Palmer, ScD, associate director of Boston University’s Slone Epidemiology Center. And type 2 diabetes is also twice as prevalent in African-American women.

“We are still trying to understand the basic biological processes that lead to ER-negative breast cancer. One way to do this is to study factors that are more common in an African-American population,” she said. Several studies suggest that diabetes is a risk factor for breast cancer and insulin resistance is a factor in TNBC.

The study was based on information provided by participants in the Black Women’s Health Study (BWHS, which uses twice-yearly questionnaires from 59,000 African- American women from across the United States.

 “Our findings may account for some of the racial disparity in breast cancer, and could partly explain why mortality from breast cancer is so much higher in black women than white women,” Palmer said. “Women could reduce their chances of getting ER-negative breast cancer if they could avoid developing type 2 diabetes. Monitoring of blood sugar levels to identify pre-diabetes may allow for early interventions to prevent diabetes.”

For more information on TNBC, check out my book, Surviving Triple-Negative Breast Cancer.  And your support of this site is important. Even a small donation keeps me going. Check the "donate" button at the top right of the page. Thanks much.

Wednesday, October 4, 2017

Ten Years After Breast Cancer And Competing In Ironman Triathlon

This coming February will be Julie Desloge’s 10th cancerversary—she had triple-negative—and she’s leading up to the celebration by training for her first full Ironman race. (Shouldn't that be Ironwoman?)  She will swim 2.4 miles, bike 112 miles and run 26.2 miles, all in less than 17 hours.
Julie biking in the Hagg Lake Triathlon in Oregon in July.
            Chew on that a minute. She will be running a marathon plus biking more than a hundred miles and swimming the equivalent of 85 laps in an average swimming pool. If you drove 112 miles in your car at 70 miles per hour, it would take you an hour and 36 minutes. But Julie’s doing it on her bike, plus that marathon and swimming thing. In 17 hours.
            Phew, Julie. Way to kick cancer out of your life.
            We're all doing what we can to recover and maintain our health, but it's nice to have Julie out there overachieving for all of us.
            She also doing it to raise money for The Breast Cancer Research Foundation.  which gets top ratings from Charity Navigator
            You can follow Julie’s blog as she prepares for the race, which is scheduled for April 2018. Julie has been racing since 2010, just two years after her diagnosis. Here’s some of what I wrote about her in my book:
Here’s one way to get over the worries about cancer treatment and the fears of its return: run a triathlon or two. That’s the approach Julie Desloge took—she completed her first sprint triathlon in June 2010, a little more than two years after she was diagnosed with triple-negative.  She participated in two additional races that summer—and her radiation oncologist was her teammate on the third.            On that race, her doctor swam 1.5 kilometers, her husband ran 10 kilometers, and Julie biked 40 kilometers. That translates to slightly less than a mile swim, a 24.8-mile bike ride, and a 6.2-mile run.
            Julie was diagnosed with a 2.6-centimeter tumor in February 2008 when she was 41. She had neoadjuvant chemotherapy—four rounds of Taxotere and Cytoxan—that got rid of all but .3 centimeters of the tumor, a nearly 90 percent reduction.            Easily speaking the jargon on cancer, she says, “No pathologically complete response for me.”  And, while her response was only partial, it nevertheless was significant, offering her a positive prognosis.
            A lumpectomy followed chemo, with radiation after that.
            Risk factors?  She’s negative for the BRCA mutation, but wonders about her reproductive history—she started her periods young, at age 11.  And she’s the mother of three children, who were 11, 9, and 6 at the time of diagnosis, although she breastfed all three for nine to ten months.
            She was about 15 pounds overweight when she was diagnosed; Taxol added another 8 pounds or so.  Her weight continues to be a challenge, even with her high level of exercise.  She now weighs more than she did at diagnosis, although much of that is probably muscle, which weighs more than fat.  I haven't really found the key to unlocking much weight loss,” she says.  Still, we’re talking about being only slightly beyond her ideal—Julie says her BMI is a healthy 24.8.
            She had been exercising regularly before cancer, doing cardio and resistance exercises four to five days a week. But she upped the ante after treatment and hit the triathlon circuit near her Portland, Oregon home.         Cancer, she says, not only gave her motivation to maintain a healthy lifestlye, but it provided a chance to look outside herself at what others are going through. She’s bothered when friends protest that they should not complain about any problems they encounter, given what she faced in cancer treatment.  “Pain is pain,” she says.
             Julie remains grateful for her continued health and her ability to compete, knowing how many other beautiful women have been denied that chance. In a recent post about gratitude, she quoted Psalm 139:14:
“I will give thanks to You, for I am fearfully and wonderfully made; Wonderful are Your works, And my soul knows it very well.” As a breast cancer survivor, I have been in awe about how fragile and strong the human body can be at the same time, affected with disease, yet able to withstand the rigors of cancer treatment. I have always been grateful for that, and grateful to be able to thrive at life now.
Julie is carrying a list of the names of breast cancer survivors in whose honor she competes and a list of the names of those in whose memory she competes. She'll carry the names with her across the finish line. If you want to add a name, let her know.

Thursday, September 14, 2017

Premenopausal Women with Belly Fat More at Risk of TNBC

Me: Normal BMI, but with
tummy fat. I've had
TNBC twice. I'm 11 years
past the first diagnosis.
two years past
the second.
Women whose fat accumulates around their stomachs and internal organs—called visceral fat—are more at risk of estrogen negative breast cancer, including triple-negative, according to research published in the Oncologist. The increased risk comes even if they are not overweight—that is, if they have a normal body mass index (BMI). The risk increases is they are past menopause. [PAT’S NOTE: This is me.]
            By contrast, overweight women whose fat accumulates in the thighs, hips, or buttocks—called subcutaneous fat—are more at risk of estrogen positive breast cancer. In this case, having a high BMI and being premenopausal increases the risk.
            “A possible reason is that subcutaneous fat is involved in estrogen production, which may promote ER+ breast cancer,” says corresponding author Zhigang Yu at the Second Hospital of Shandong University in China. “Visceral fat is more closely related to insulin resistance and may be more likely to promote ER- breast cancer.”
            For the study, researchers recruited 1,316 Han Chinese women between 25 and 70 in Northern and Eastern China who were newly diagnosed with breast cancer and compared their body types to women who had not had breast cancer.
            Asian women tend to be slimmer than their American counterparts, but those who are overweight typically carry visceral fat. Subcutaneous fat is more common in the United States. Could that be why ER+ cancer is more common here?

To sum up: 
• Women with belly fat who are past menopause are at increased risk of TNBC, even if they are not overweight.
• Women who over overweight, with fat in thighs, hips, and buttocks and who are premenopausal are at risk of ER+ breast cancer.

Tuesday, June 27, 2017

Studies Show Obamacare Improves Breast Cancer Prognosis, Cutting Medicaid Puts Women at Risk

Two separate analyses demonstrate that women with access to mammograms 
and other breast cancer screenings are diagnosed at earlier, more treatable, 
and less costly stages.

More women were diagnosed with early stage breast cancer after the Affordable Care Act took effect, according to a study published this month in the journal Cancer Epidemiology.  Equally important, there was a decrease in later stage, and more serious, cancers.

Late-stage breast cancer is more costly to treat and is more likely to be fatal than early-stage cancer.

Increases in early diagnoses were higher among African American and Latina breast cancer patients. 
In the past, the cost of mammograms has prevented many Latinas and African Americans to receive mammograms overall or at recommended intervals.

The Affordable Care Act eliminated copayments and other out-of-pocket costs for 45 preventive care services, including mammograms, making them more affordable and leading to the potential for earlier diagnoses, researchers say. Diagnosing breast cancer when it is still in Stage 1 could improve the prognosis for thousands of women and reduce the need for expensive and invasive treatments such as chemotherapy, wrote lead author Abigail Silva, PhD, MPH, of Loyola University Chicago Stritch School of Medicine.

The study included 470,465 breast cancer patients between the ages of 50 and 74 who were covered by private insurance or Medicare and were newly diagnosed with breast cancer. Researchers examined two time periods: 2007-2009 (before the Affordable Care Act took effect) and 2011-2013 (after the act took effect). They used data from the National Cancer Database, which includes approximately 70 percent of all newly diagnosed cancers in the United States from about 1,500 hospitals.

Overall, the number of breast cancers that were diagnosed at Stage 1 increased 3.6 percent, from 54.4 to 58.0 percent. There was a corresponding decrease in Stage 2 and Stage 3 diagnoses, while the proportion of Stage 4 cancers did not change.

The diagnosis of Stage 1 breast cancer increased by 3.2 percentage points among whites, 4.0 percentage points among African Americans and 4.1 percentage points among Latinas. 

Historically, more white women are diagnosed with Stage 1 breast cancer, while African Americans and Latinas are diagnosed at a higher stage. This disparity decreased following the Affordable Care Act, as minorities saw improvements in Stage 1 diagnoses.

This is especially significant for triple-negative breast cancer, which has been shown to be more prevalent and aggressive among African Americans.

Cutting Medicaid Puts Women At Risk
Tennessee women with breast cancer were more likely to be diagnosed at later, more dangerous, stages after a substantial rollback of Medicaid coverage for adults in the state, with the biggest effects being among women in low-income areas, according to an analysis published in the journal Cancer.

Researchers analyzed Tennessee Cancer Registry data from 2002 to 2008 and compared women 
diagnosed with breast cancer who lived in low-income zip codes with a similar group of women who 
lived in high-income zip codes, before and after Tennessee’s Medicaid restrictions. They found that 
women were not only diagnosed at later stages but also experienced more delays in treatment after 
the restrictions were imposed. Low-income women had a 3.3 percent increase in late-stage diagnosis 
compared to those with higher incomes.

Tennessee restricted Medicaid enrollment in 2005

The findings suggest that women did not get screenings or other essential primary care that may 
have led to an earlier diagnosis, according to team leader Wafa Tarazi, PhD, of Virginia 
Commonwealth University. The reason: lack of affordable care.

“Medicaid rollbacks may contribute to widening disparities in health outcomes between low-income women and their wealthier counterparts,” said team leaders Lindsay Sabik, PhD, of the University of Pittsburgh, another team leader.