Cancer Blog: From Medicineworld.org
Do you read all of the blogs published by medicineworld.org? Many of our bloggers are busy keeping you updated on the various health related topics. We publish the following blogs at this time.
Cancer blog: I manage the cancer blog with lots of help and support form other bloggers. Through this cancer blog my friends and I try to bring stories of hope for patients with cancer. The cancer blog often republishes important blog posts from other cancer related blogs at Medicineworld.org. If you are searching for a blog that covers wide variety of cancer topics, this may be the one for you.
Breast cancer blog: Breast cancer blog is run by Emily and other bloggers and they bring you the latest stories, news and events that are related to breast cancer. Increasing awareness about breast cancer among women and in the general population is the main goal of this breast cancer blog.
Lung cancer blog: Lung cancer blog is managed by Scott with the help of other bloggers. Through this blog Scott and his friends constantly remind the readers about the dangers of smoking. It's a never-ending struggle against this miserable disease with which a social stigma of smoking is associated.
Colon cancer blog: Colon cancer blog is run by Sue and other bloggers. Sue brings a personal touch to the colon cancer blog since her mother died of colon cancer few years ago. She writes about stories, research news and advances in treatment related to colon cancer.
Prostate cancer blog: Prostate cancer is the most common cancer among American men. American Cancer Society estimates that over 230,000 new cases of prostate cancer occur in the United state every year. This important blog about prostate cancer is run by Mark and other bloggers. This blog brings news, stories, and other personal observations related to prostate cancer.
Medicineworld.org publishes a diabetes watch blog and this blog is run by JoAnn other bloggers. This diabetes watch blog brings you the latest in the field of diabetes. This includes personal stories, advances in diagnosis and treatment, and other observations about diabetes. Improving awareness about diabetes is an important mission of this group.
"Don't count me out, brother," Rawls said late last week from his room at Cedars-Sinai Medical Center.
The lung cancer was diagnosed a year ago and the brain cancer in May, his estranged wife, Nina, said during a marriage annulment hearing Thursday in Arizona.
Rawls has released more than 70 albums, been in movies, television shows and voiced-over many cartoons.
A high school classmate of soul giant Sam Cooke, Rawls sang with Cooke in the Teenage Kings of Harmony, a 50's gospel group. Rawls enlisted in the US Army as a paratrooper in the 82nd Airborne Division in 1955. He would leave the "All-Americans" three years later as a Sergeant and hook up with a group he had sang with before enlisting, the Pilgrim Travelers. In 1958, while touring the South with the Travelers and Sam Cooke, Rawls was in a serious car crash which claimed the life of one person. Rawls was actually pronounced dead before getting to the hospital where he stayed in a coma for 5 1/2 days. It took him months to regain his memory and a year to fully recuperate. Rawls considered the event life-changing.
Rawls, 70, is trying to annul his two-year marriage and protect hundreds of thousands of dollars of assets his wife "absconded with." She says she transferred nearly $350,000 to prevent one of Rawls' two adult daughters from seizing it.
Cervical cancer vaccine manufactured by GlaxoSmithKline targets two viruses responsible for 70 percent of uterine cancer cases triggers twice the immune response in girls aged 10 to 14 than in those aged 15 to 24, the British pharmaceutical firm said.
The results of phase 3 clinical trials were presented at an annual conference on infectious diseases under way this weekend in Washington.
They indicate that the vaccine Cervarix could offer more durable and efficient protection, if it is given to the young, well ahead of their becoming sexually active.
"Vaccination of pre-teen/adolescent girls against cancer-causing HPV (Human Papillomavirus) before onset of sexual activity will be an important part of the overall strategy for cervical cancer prevention," said Anna-Barbara Moscicki, a pediatrics professor from the University of California.
The clinical trials conducted by Glaxo in Europe and Russia involved 158 girls aged between 10 and 14 and 458 women aged between 15 and 25. Each of them received three doses of the vaccine over a period of six months.
This new vaccine is called Cervarix, but this has not been introduced to the market yet.
American pharmaceutical company Merck is waiting for FDA approval to to start marketing its own vaccine called Gardasil.
This morning I was reading a new study, which showed that persisting fatigue after chemotherapy is rare. In this study only one in five women showed persistent fatigue after chemotherapy, regardless of the type of chemotherapy used. Some of these women had received regular chemotherapy while some other had received high dose chemotherapy.
This study comes from Dr. Elisabeth G. E. de Vries and colleagues at University Medical Center Groningen, the Netherlands. They evaluated the effects of standard and high dose chemotherapy on factors such as fatigue, and hemoglobin level in 403 women who were disease free after treatment. These women were evaluated at four different time periods.
More than 60 percent of women did not complain of any fatigue during the four follow up points, while only 3 percent reported fatigue at all four points. Twenty percent of women have reported fatigue once during the follow up.
The mean hemoglobin level was slightly low in women who received high dose chemotherapy compared to women who received standard dose chemotherapy, but there was no correlation between hemoglobin level and fatigue.
This discovery may help identify subsets of high-risk cancer patients who are prone to distant metastases. Those patients would likely benefit from a more aggressive adjuvant therapy to prevent cancer relapse.
The researchers, led by David Lyden and Shahin Rafii , published their findings in a January issue of the journal Nature. Lyden and his colleagues are at Memorial Sloan-Kettering Cancer Center and the Weill Medical College. Shahin Rafii is an investigator at Howard Hughes Medical Institute at weill Medical college of Cornell University.
Rafii and Lyden's group had established that a specific subset of bone marrow derived cells (BMDCs ) - involving hematopoietic progenitor cells capable of dividing and forming colonies- are recruited by tumors to help the growth of new blood vessels.
In experiments with mice that had been implanted with highly metastatic lung cancers or melanoma cells, the scientists discovered that BMDCs did, indeed, arrive at the pre-metastatic sites before the arrival of cancer cells.
The researchers showed that there was a significant decrease in succeeding tumor metastasis by the intervention with the mobilization of VEGFR1-positive cells from the bone marrow and incorporation into the pre-metastatic niche.
A number of regulatory molecules were identified by the researcher, including the adhesion molecule VLA4 and the protease MMP-9, which were necessary for BMDCs to establish the pre-metastatic niches in target organs and for tumor cells to find and attach to those niches.
The idea is this: you can download a small program and install it on your computer and then forget about it. The researchers would use that extra computing power on your computer, to expand the capabilities of their super computer.
The report says that, modern computers are incredibly powerful machines whose processing abilities are seldom used to their full abilities. Regardless of how hard you push it, you're probably not using as much of the computer's power as you think.
Is it safe, that's the next question?
With widespread reports of Internet virus attacks, worms, Trojan horses, spyware and identity theft, some might fear that participating in a grid will make them more vulnerable to becoming a virtual victim.
"We are comfortable saying that on any computer you're willing to browse, you should be comfortable putting our client on," said Armentrout of his company's grid software. "We say it's safer than surfing."
Litow said that IBM is also committed to keeping participants safe, and that in the year IBM's World Community Grid has been in existence - a network of humanitarian grid projects - there hasn't been a single problem.
You may read the whole story here
To come to this conclusion, researchers analyzed 78 clinical trials in a process called meta-analysis and showed that use of post-operative radiation therapy decreases five year recurrence rate of breast cancer from 26 percent to 7 percent. The researchers also demonstrated for the first time a survival advantage with post-operative radiation therapy by showing the odds of dying from the disease decreases from 36 percent to 31 percent with the use of radiation therapy.
Patients who had mastectomy, also benefited from post-operative radiation therapy. Radiation therapy is usually given to patients with mastectomy only if they are high risk of recurrence of breast cancer due to involvement of multiple lymph nodes.
"This study provides the first really definite evidence that, for women who've had breast-conserving surgery and for women whose cancer has spread to the armpit, radiotherapy reduces the long-term risk of dying from the disease," said Dr Richard Peto, a co-author of the report.
These research findings appeared in the latest issue of the medical journal Lancet.
Researchers reviewed data from more than 68,000 women to come to this conclusion. The found that those who consumed at least two servings of mostly low-fat dairy products a day had up to a 20 percent less risk of postmenopausal breast cancer than women who ate the least amount of dairy products.
"Our findings suggest that dairy products, composed mainly of low-fat sources, or some component within these foods are associated with a small but significantly lower risk of breast cancer in postmenopausal women," study leader Marji McCullough, a senior epidemiologist with the American Cancer Society, said in a prepared statement.
"Work is still needed to more clearly identify what may be the responsible factors. And while we controlled to the best of our ability for other possible explanations, it's certainly possible women who consume low-fat dairy products have other health-related behaviors that could also lower the risk," McCullough said.
She also cautioned women to be careful about how they interpret the study's findings.
"It is important to keep in mind that some dairy products, like whole milk and many types of cheese, have a lot of saturated fat, which we know can increase the risk of heart disease and possibly other cancers. Also, many diary products have growth factors such as insulin-like growth factor I, which have been shown to promote breast cancer cell growth," McCullough said.
"It was a natural progression of the work that had already been done linking estrogen and lung cancer," said Olga Weinberg, who delayed her fourth year at Vanderbilt University School of Medicine to work on the project.
"We followed one of the clues as to why this is happening, namely that estrogen drives the growth of certain types of lung cancer in women." said senior author Richard Pietras, Weinberg's research mentor at the University of California at Los Angeles.
"The production of estrogen takes several steps, and aromatase is the key to the process," said Weinberg. "Without aromatase, you don't get estrogen."
To confirm that lung cancer needs aromatase, the team first searched for the enzyme in laboratory-grown lung cancer cells. After finding it there, they also searched 53 non-small cell lung tumor samples from patients Using an antibody specific for aromatase and immunohistochemistry techniques, they found that 88 percent of the specimens from women and 86 percent from men contained high levels of the enzyme.
"Once we saw that aromatase was active, we wanted to see if we could inhibit it with the same drugs they use for breast cancer," said Weinberg. The team treated their cells with the drug anastrozole for 48 hours, finding that it did in fact shut down aromatase activity and retard tumor growth in the lab.
"We found that tumors with both high and low levels of aromatase were sensitive to the drug," said Pietras.
Finally, the team grafted human lung tumors onto mice. One group of mice received anastrozole for 21 days, while a second group did not. The tumors in the mice taking the drug grew 90 percent slower than the tumors in the untreated mice.
Dietary fiber has been hypothesized to reduce the risk of colorectal cancer, according to background information in the article. However, the results of numerous epidemiological studies have been inconsistent. Ecological correlation studies and many case-control studies have found an inverse association between dietary fiber intake and risk of colorectal cancer. But most prospective cohort studies have found no association between dietary fiber intake and risk of colorectal cancer or adenomas (precursors of colorectal cancer), and randomized clinical trials of dietary fiber supplementation have failed to show reductions in the recurrence of colorectal adenomas.
Yikyung Park, Sc.D., of the Harvard School of Public Health, Boston, and colleagues evaluated the association between dietary fiber intake and risk of colorectal cancer by reanalyzing the primary data from 13 prospective cohort studies (Pooling Project of Prospective Studies of Diet and Cancer). The pooled analysis included 725,628 men and women who were followed-up for 6 to 20 years across studies.
During the follow-up, 8,081 colorectal cancer cases were identified. Among the studies, median (midpoint) energy-adjusted dietary fiber intake ranged from 14 to 28 g/d in men and from 13 to 24 g/d in women. The major source of dietary fiber varied across studies with cereals as a major contributor to dietary fiber intake in the European studies, and fruits and vegetables as the main sources in the North American studies.
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Cancer is a very common disease, approximately one out of every two American men and one out of every three American women will have some type of cancer at some point during the course of their life. Cancer is more common in the elderly and 77 percent of cancers occur in people above age 55 or older. Cancer is also common in children. Cancer incidence is said to have two peaks once during early childhood and then during late years in life. No age period is completely exempted from development of cancers. Some cancers occur predominantly in the elderly, other types occur in children, Cancer occurs in all ethnic races, however the cancer rates and rates of specific cancer types may vary from group to group. Late stages of cancer may be incurable in most cases, but with the advancement of medicine, more and more cancers are becoming curable.
Cancer Blog: From Medicineworld.org
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