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Posts with tag estrogen

Recurrence patterns different for women with triple-negative breast cancer

Triple-negative breast cancer means that the pathology report has shown the cancer to be estrogen receptor negative, progesterone receptor negative, and HER2 negative.

Results published in Clinical Cancer Research found that women with triple negative breast cancer have an increased risk of metastatic disease and death during the first few years after diagnoses, but not after that time period.

A study was conducted among 1,601 breast cancer patients. One hundred and eighty women (11.2%) had triple negative breast cancer.

The results of the study:

Continue reading Recurrence patterns different for women with triple-negative breast cancer

Sex difference in lung cancer treatment

Women with advanced lung cancer have a better survival rate than men, but this is only true for women over the age of 60. For women under the age of 60, the survival rate is the same as men's.

"We don't know why, but the hypothesis is that age is acting as a surrogate for lower estrogen levels and those lower levels of estrogen may affect the metabolism of chemotherapy agents," said Regina Vidaver, Ph.D., executive director of the National Lung Cancer Partnership based in Madison, Wisc.

These findings were presented at the 2007 Annual Meeting of the American Society for Clinical Oncology (ASCO).

At the meeting, researchers showed data that indicated that pre-menopausal estrogen levels were associated with a higher death rate among women receiving chemotherapy for advanced non-small cell lung cancer (NSCLC), which makes up about 85 percent of all lung cancer cases.

In addition, women who have never smoked are more at risk for lung cancer than men who never smoked, with some research indicating that estrogen is again involved.

Femara results in fewer recurrences than Tamoxifen

Femara (letrozole) is an aromatase inhibitor that works by suppressing the production of estrogen. In postmenopausal women estrogen is still produced in the body by the adrenal gland. Decreasing this production is a way of decreasing the risk of recurrence.

Tamoxifen on the other hand works by blocking the estrogen receptors on the cancer cell itself resulting in slower growth of the cell or cell death. Tamoxifen can be given to post or premenopausal women but Femara would only be prescribed to women that are postmenopausal. The reason being, is that a premenopausal women will still have estrogen produced by the ovaries. Femara would not be effective in this instance.

A Phase III clinical trial that is ongoing shows preliminary results that Femara is superior than Tamoxifen in women with early stage disease that are postmenopausal. The results of the study were published in the Annals of Oncology.

Continue reading Femara results in fewer recurrences than Tamoxifen

Recipe for Healthy Living: Get up, grab some grain

I'm no cook. And I'll never claim a recipe is my own. Anyone who likes my taco salad should thank my friend Kim and her mom Kathy. My turkey meatballs: all credit goes to my brother-in-law's mom. The brownies I once whipped up and now have given up: kudos to Betty Crocker. And this recipe I'm about to share comes straight from the pages of the May 2007 issue of Family Circle magazine. It's such a simple recipe -- takes five minutes tops. I probably could have invented it on my own. But I didn't.

Go With The Grain

Top 1 cup whole-grain cereal with:

2 tablespoons ground flaxseed
1/2 cup each strawberries and raspberries
1 cup 1% milk

Continue reading Recipe for Healthy Living: Get up, grab some grain

Cisplatin works for triple-negative breast cancer

It's called triple-negative breast cancer and it manifests itself in the lack of expression of two cell surface proteins -- estrogen and progesterone receptors -- and also the protein HER2.

It's a disease that does not typically respond to treatment with standard chemotherapy drugs and therefore, diagnosis can come with a poor prognosis. But a new study out of Massachusetts General Hospital Cancer Center in Boston indicates this type of disease is sensitive to the drug cisplatin.

The study, appearing online in the April 19 Journal of Clinical Investigation and in the journal's May print issue, shows that triple-negative breast cancer expresses larger amounts of two proteins, delta-Np63 and TAp73. Delta-Np63 binds to TAp73 and prevents it from killing cancerous cells. Cisplatin does the trick, though, and releases TAp73 from delta-Np63. This causes the cells to die and offers hope for a sometimes hopeless disease.

Chemo plus tamoxifen a go, ovary suppression a no

Results of two studies, sponsored by the Adjuvant Breast Cancer (ABC) Trials Collaborative Group, conclude that adding chemotherapy to the estrogen-blocking drug tamoxifen improves survival for those with early-stage breast cancer. The same studies reveal preventing the secretion of estrogen from the ovaries does not offer much benefit for most women.

Researchers studied 1991 patients, ages 28 to 81. All had received five years worth of treatment with tamoxifen therapy with or without standard chemotherapy. Some premenopausal women were also treated with ovarian removal (ablation) or suppression, a technique used to stop the glands from secreting hormones.

While early results, appearing in the Journal of the National Cancer Institute, fell short of statistical significance, chemotherapy still reduced the overall risk of death by 17 percent, mostly for women younger than 50 and especially for premenopausal women not treated with ovarian ablation or suppression.

Low-dose birth control pills cut ovarian cancer risk

Newer versions of oral contraceptives -- with lower levels of estrogen and progestin -- reduce the risk of ovarian cancer more than older concoctions of birth control pills

Researchers at the University of Hawaii in Honolulu, whose work is published in the Journal of Obstetrics & Gynecology, say birth control pills have long decreased the risk of ovarian cancer. But over the years, doses of hormones in these pills have been decreased to reduce side effects -- and this seems to have an even stronger protective effect against the disease.

Studies show for women who had used any oral contraceptive a 50 percent reduction in risk of developing ovarian cancer compared to women who had never taken the pills. This risk was reduced by 38 percent
for women who took high estrogen and high progestin pills and by 81 percent for those taking pills with low levels of these hormones.

"Up to 42 percent of ovarian cancers might have been avoided if all women used some form of combined oral contraceptive pills," say researchers.

"An estimated 73 percent of ovarian cancers might have been avoided if all women used oral contraceptive pill formulation of low estrogen and low progestin."

Strenuous exercise a must for breast cancer prevention

Regular. Strenuous. Exercise. Memorize these three words. Live these three words. And abandon all thoughts of a fitness routine that is easy, moderate, or periodic.

Brisk walking, golf, and volleyball are considered moderate forms of exercise. Swimming laps, aerobics, and running are considered strenuous. And these are the activities we should be taking part in -- for the rest of our lives -- if we really truly wish to prevent breast cancer.

A new study, published in the February 26 issue of the Archives of Internal Medicine, shows women with a long-term history of engaging in strenuous exercise for more than five hours per week were 20 percent less likely to develop invasive breast cancer and 31 percent less likely to develop in situ breast cancer than those logging less than 30 minutes of strenuous exercise per week.

It seems strenuous exercise most affects estrogen-receptor negative breast cancer. But clearly, everyone can benefit from vigorous fitness training -- the American Cancer Society recommends moderate to strenuous exercise five days per week for at least 30 minutes each day -- and this is exactly why I am headed out for a run. Today!

Recipe for Healthy Living: Vegan chocolate cheesecake

Tofu is rich in high-quality protein. It is also a good source of B-vitamins and iron. When the curdling agent used to make tofu is calcium salt, the tofu is an excellent source of calcium. While 50% of the calories in tofu come from fat, a 4-ounce serving of tofu contains just 6 grams of fat. It is low in saturated fat and contains no cholesterol. Generally, the softer the tofu, the lower the fat. Many women fear soy foods if they have estrogen-receptor positive cancers. There is NO good research showing soy FOODS are bad for you if you have estrogen-receptor positive cancer. Soy FOODS seem to contain things that slow down cancer cells. Soy FOODS may even make cancer cells less aggressive. If you have estrogen-receptor positive cancer, DO NOT USE SOY SUPPLEMENTS.


Vicki's Vegan chocolate cheesecake

1 pound extra firm tofu
1 cup honey
1 cup cocoa
1/2 teaspoon cinnamon
2 tablespoons liquid espresso or strong coffee
1 pre-made pie crust

Blend ingredients until smooth. Pour into crust. Bake
at 350 degrees for 30 minutes. Chill for minimum 2 hours before slicing.

Tamoxifen halts long-term breast cancer risk

Breast cancer drug tamoxifen, designed to cut recurrence in women with estrogen-receptor positive disease, has been shown to continue working long after women stop taking the drug. And two studies suggest it might also offer long-term protection for healthy women with high risk of developing breast cancer.

One such study found the drug decreases risk of hormone-sensitive breast cancer by 39 percent over 20 years. Another shows a 34 percent decrease for up to eight years after the therapy concludes.

Published in the Journal of the National Cancer Institute, one study -- the International Breast Cancer Intervention Study, or IBIS -- looked at 7,145 women at high risk of breast cancer. And for the first time, clear evidence has surfaced in support of the merits of tamoxifen after the completion of treatment.

IBIS study participants took either a daily dose of tamoxifen or a placebo for five years. At the eight-year mark, 87 women who took the actual drug were diagnosed with estrogen-receptor positive breast cancer. And 129 women in the placebo group were diagnosed with the same disease.

In the second study, researchers from the Royal Marsden Hospital in London investigated 20-year data on 2,471 healthy women at high risk of breast cancer who took tamoxifen for six or seven years. Similar results were found.

Despite the benefits of tamoxifen as a preventative treatment, the drug is not currently approved for this use in the UK, where breast cancer is the most common form of female cancer.

Triple-negative breast cancer and prognostic markers

I blogged about Diagnosis of triple-negative breast cancer back in November. This topic seemed to get many responses from women who fit into this breast cancer 'category'.

I read a report today that discussed new data that can add to the traditional pathology testing, tumor size and lymph node status to name a few, for women with triple negative disease. This would not be a new treatment for triple negative breast cancer, but I believe this information found to be very important for future discoveries that might lead to more options for triple negative breast cancer patients.

What was discussed was the assessment of basal cytokeratins and androgen receptors in patients with triple negative breast cancer. The researchers are trying to identify prognostic markers that might signal more aggressive behavior of these specific tumors.

The only thing this seems to be able to help with at the moment is getting physicians to understand if you have a triple negative breast cancer that is more aggressive, thus warranting more aggressive treatment.

For those with triple negative disease this might not seem that great, however they are studying what makes these tumors tick and I think this will eventually evolve into new targeted treatments.

Switching drugs may help breast cancer patients survive

According to the results of an international study, postmenopausal women who have taken tamoxifen for early stage estrogen-receptor positive breast cancer for two to three years might increase their chances of survival by switching to newer breast cancer drugs called aromatase inhibitors.

Study researchers found this drug switch-up reduced the number of events linked to poor survival by 32 percent -- although no difference has been found in overall survival at this early point in the trial.

"These findings provide some limited evidence to advise all women being administered tamoxifen to switch, even though this approach is not devoid of potentially serious side effects," say experts at the National Cancer Institute.

Side effects appear to be minimal, however, and the up side of treatment with aromatase inhibitors is the fact that they don't seem to carry the risk of death from other causes like with tamoxifen, which can cause stroke or endometrial cancer.

This study is expected to be published in the March 15 issue of the journal Cancer.

A study in mouthwash

A lab in Oklahoma is studying genes for combinations that predict breast cancer risk. A look into the 100 genes gathered from each woman -- via mouthwash -- allows researchers to categorize women with standard, moderate, or high risks of developing the disease.

The study begins with a lengthy questionnaire about medical history and leads to the collection of a DNA sample. Women simply rinse their mouths with a standard mouthwash and wait for results.

Geneticist Dr. Kara Casas says she hopes that regardless of results, women will choose a healthy lifestyle with a diet low in fat and alcohol consumption and with lots of exercise too. But those in the moderate and high-risk groupings will be advised to make other lifestyle changes to help decrease their chances of getting breast cancer. They may be asked to regulate estrogen levels, for example, and to report regularly for mammograms at an earlier age.

Casas says all women have some risk of developing breast cancer. But knowing what these risks are can help them better protect themselves -- which makes tests like this so important.

A total of 12,000 samples will collected for an FDA trial. For more information about this study in mouthwash, call 903-510-1173.

Woman claims drug caused breast cancer, wins $1 million

An Arkansas woman claiming the hormone replacement drug Prempro caused her breast cancer just won her legal battle against Wyeth, the maker of the drug.

Mary Daniel was awarded $1 million in compensatory damages thanks to a Philadelphia jury decision stating Wyeth acted with malice or reckless disregard for selling Prempro -- the drug Daniels took for 16 months to relieve hot flashes. The next step for Daniels, whose husband will receive $500,000, is a hearing to consider punitive damages.

Wyeth's lawyer argues that Prempro -- a combination of estrogen and progestin -- is still prescribed to women and suggests Daniel's breast cancer was caused by other risk factors, such as family history of the disease.

One step closer to uncertain survival

It's an unsettling journey -- the pursuit of the five-year cancer survival mark. Some say each year of cancer survival makes the future more of a sure thing. And so surviving five years -- the traditional landmark of real remission -- is a big accomplishment. But then there's the perspective of numbers that for me say I have a 93 percent chance of surviving breast cancer for five years. After that, though, there's no telling what will happen. So I am eagerly awaiting the moment when I cross the five-year finish line as I anxiously realize this very same moment may also signal a more dismal outlook.

The paradox hit me straight in the face yesterday as I was waiting for my radiation oncologist to give me another six-month all clear announcement. I was reading the January/February 2007 issue of Coping magazine while I waited. And as I flipped through the pages, I landed right at these words:

Studies show that half of all breast cancer recurrences occur after completion of five years of standard tamoxifen therapy. Additionally, a third of women with estrogen receptor-positive early breast cancer experience a recurrence, and more of half of these recurrences occur more than five years after surgery.

Now this doesn't apply directly to me. My breast cancer was estrogen receptor-negative which makes me a non-candidate for tamoxifen. And this is what scares me. My tumor was aggressive and while my treatment was also aggressive, I don't get the extra five-year protection from hormone therapy. If women taking this drug can have recurrences after completing the therapy, I wonder what's in store for me having not had it.

Maybe I'm making comparisons that don't amount to any real conclusions. Perhaps my type of disease allows for a more secure future. Or perhaps it places me on shaky ground. I don't know for sure. And I don't think I'll dive any deeper into research than I already have. Instead, I will live for today -- while enjoying the announcement my oncologist shared with me yesterday. All clear!

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