Health Buzz: Noninvasive Stool Test Could Detect Colon Cancer

A reliable, at-home colon cancer screening test that identifies DNA mutations in stool samples could soon supplement the dreaded colonoscopy. Exact Sciences Corp.'s noninvasive tool is far more predictive of colon cancer than the standard stool blood test because it screens for mutations associated with the presence of tumors. In a study of more than 1,000 patients, the test detected 85 percent of colon cancers, 64 percent of precancerous polyps, and 90 percent of healthy samples, researchers said Thursday at an American Association for Cancer Research conference. About 150,000 people are diagnosed with colon cancer each year, and 50,000 die from the disease annually. Often, that's because people shy away from invasive and somewhat risky colonoscopies until they have symptoms—indicating that the disease may already be advanced, The Wall Street Journal reports. "The noninvasive test we have developed is simple for patients, involves no diet or medication restriction, no unpleasant bowel preparation, and no lost work time, as it can be done from home," David Ahlquist, a Mayo Clinic researcher who helped develop the test, said at the conference. "Positive tests would be followed up with colonoscopy." The tool requires at least another year of development before it's ready for clinical use, researchers said.

Nutriate Food

Fruit normally means the fleshy seed-associated structure of certain plants that are sweet and not poisonous in the raw state, such as apples, oranges, grapes, strawberries, juniper berries and bananas, or the similar-looking structures in other plants, even if they are non-edible or non-sweet in the raw state, such as lemons and olives. Seed-associated structures that do not fit these unperturbed criteria are usually called by other names, such as vegetables, pods, nut, ears and cones.

A"fruit" is a part of a flowering plant that derives from specific tissues of the flower, mainly one or more ovaries. Taken strictly, this definition excludes many structures that are "fruits" in the common sense of the term, such as those produced by non-flowering plants and fleshy fruit-like growths that develop from other plant tissues close to the such as cashew fruits. Often the botanical fruit is only part of the common fruit, or is merely adjacent to it

A fruit results from maturation of one or more flowers, and the gynoecium of the flower(s) forms all or part of the fruit. There are three general modes of fruit development:
• Apocarpous fruits develop from a single flower having one or more split carpels, and they are the simplest fruits.
• Syncarpous fruits increase from a single gynoecium having two or more carpels fused together.
• Multiple fruits form from many different flowers.

The plant hormone ethylene causes ripening of many (but not all) types of fruit. Maintaining fruits in an efficient cold chain is optimal for post harvest storage. The aim is to extend and ensure shelf life. All fruits benefit from proper post harvest care.

cancer due to mobile

Cancer is a class of diseases in which a collection of cells display uncontrolled growth, invasion and sometimes metastasis. These three hateful properties of cancers discriminate them from benign tumors, which are self-limited, and do not etastasize. Most cancers form a tumor but some, like leukemia, do not. The branch of medicine anxious with the study, diagnosis, treatment, and avoidance of cancer is oncology.

Cancer affects people at all ages with the risk for most types increasing with age. Cancer caused about 13% of all human deaths in 2007

Cancers are caused by abnormality in the genetic material of the transformed cells. These abnormality may be due to the effects of carcinogens, such as tobacco smoke, radiation, chemicals, or infectious agents. Other cancer-promoting genetic abnormalities may haphazardly occur through errors in DNA replication, or are inherited, and thus present in all cells from birth. The heritability of cancers is usually affected by complex exchanges between carcinogens and the host's genome.

Systemic symptoms: weight loss, poor appetite, fatigue and cachexia ,sweating, anemia and specific paraneoplastic phenomena, i.e. specific conditions that are due to an active cancer, such as thrombosis or hormonal changes. Some cancers can be caused by infection. This is especially true in animals such as birds, but also in humans, with viruses responsible for up to 20% of human cancers worldwide.

Low calorie diet can cut cancer risk

Low calorie diet can cut cancer risk

Foodies, beware! Cancer could be just approximately the corner if you don’t watch not only what you put in your mouth but also how much.Being a small eater can aid you live longer, show studies on fruit flies and animals. But a new study finds it can also help you avoid malignancies and even heart disease.

Researchers from University of Alabama grow precancerous lung cells in a laboratory and then exposed the cells to glucose, a common component of human being diet. The team varied the level of exposure of the cells to glucose. Theresearchers then grew the cells for a few weeks.

After some time, they noticed that healthy lung cells that were bare to lower levels of glucose lived longer than those to usual levels.The precancerous cells died in large numbers when their glucose contact was limited.

The researchers speculate that this is because lower glucose levels decrease the activity of enzyme telomerase, which is involved in division of cells, and increased that of P16, a protein that suppresses tumour formation.

Trygve Tollefsbol, lead author of the study, said, “We were able to track the cells’ ability to divide while also monitoring the number of surviving cells. The mold that was revealed to us showed that restricted glucose levels led the healthy cells to grow longer than is typical and caused theprecancerous cells to die off in large numbers. These consequences further verify the potential health benefits of controlling calorie intake.”

In a report in the Journal of the Federation of American Societies for Experimental Biology, the researchers wrote, “Collectively, these results provide new insights into the gene mechanisms of a nutrient control strategy that may donate to cancer therapy as well as anti-aging approaches.”

Moral of the story – exercise may keep your weight down despite binges on calorie bombs. But to ditch the big C, start counting the small C’s.