Cancer

From Wikipedia, the free encyclopedia

Cancer Classification and external resources
A coronal CT scan showing malignant cancer of the lung sac. Legend: → tumor ←, ★ central pleural effusion, 1&3 lungs, 2 spine, 4 ribs, 5 aorta, 6 spleen, 7&8 kidneys, 9 liver.
DiseasesDB	28843
MedlinePlus	001289
MeSH	D009369

Cancer (medical term: malignant neoplasm) is a class of diseases in which a group of cells display uncontrolled growth (division beyond the normal limits), invasion (intrusion on and destruction of adjacent tissues), and sometimes metastasis (spread to other locations in the body via lymph or blood). These three malignant properties of cancers differentiate them from benign tumors, which are self-limited, do not invade or metastasize. Most cancers form a tumor but some, like leukemia, do not. The branch of medicine concerned with the study, diagnosis, treatment, and prevention of cancer is oncology.

Cancer may affect people at all ages, even fetuses, but the risk for most varieties increases with age.^[1] Cancer causes about 13% of all deaths.^[2] According to the American Cancer Society, 7.6 million people died from cancer in the world during 2007.^[3] Cancers can affect all animals.

Nearly all cancers are caused by abnormalities in the genetic material of the transformed cells^{[citation needed]}. These abnormalities may be due to the effects of carcinogens, such as tobacco smoke, radiation, chemicals, or infectious agents. Other cancer-promoting genetic abnormalities may be randomly acquired through errors in DNA replication, or are inherited, and thus present in all cells from birth. The heritability of cancers are usually affected by complex interactions between carcinogens and the host's genome. New aspects of the genetics of cancer pathogenesis, such as DNA methylation, and microRNAs are increasingly recognized as important.

Genetic abnormalities found in cancer typically affect two general classes of genes. Cancer-promoting oncogenes are typically activated in cancer cells, giving those cells new properties, such as hyperactive growth and division, protection against programmed cell death, loss of respect for normal tissue boundaries, and the ability to become established in diverse tissue environments. Tumor suppressor genes are then inactivated in cancer cells, resulting in the loss of normal functions in those cells, such as accurate DNA replication, control over the cell cycle, orientation and adhesion within tissues, and interaction with protective cells of the immune system.

Diagnosis usually requires the histologic examination of a tissue biopsy specimen by a pathologist, although the initial indication of malignancy can be symptoms or radiographic imaging abnormalities. Most cancers can be treated and some cured, depending on the specific type, location, and stage. Once diagnosed, cancer is usually treated with a combination of surgery, chemotherapy and radiotherapy. As research develops, treatments are becoming more specific for different varieties of cancer. There has been significant progress in the development of targeted therapy drugs that act specifically on detectable molecular abnormalities in certain tumors, and which minimize damage to normal cells. The prognosis of cancer patients is most influenced by the type of cancer, as well as the stage, or extent of the disease. In addition, histologic grading and the presence of specific molecular markers can also be useful in establishing prognosis, as well as in determining individual treatments.

What 's Omega-3 fish oil

Omega-3 Fish Oil

Omega fish oil is oil that comes from the tissues of fatty fish. Omega fish oil contains Omega 3 fatty acids. These fatty acids are good fats that your body needs in order to function properly.

"Your body cannot create Omega 3 fatty acids on its own so you must consume Omega fish oil in order to get the Omega 3 fatty acids you need."

Where Omega-3 Fish Oil is

You can find Omega fish oil in fatty fish such as Hoki, Salmon and tuna. However, some of the fish that Omega fish oil is found in contains toxins such as mercury and dioxin. Because of this, many health professionals advise that you don’t eat too much fish each week.

Besides eating fish, you can get Omega fish oil in the form of fish oil pills. These pills are created using the Omega fish oil in order to give you the Omega 3 fatty acids your body needs.

Pure Omega Fish Oil

It’s important to understand that just because your Omega fish oil is coming in pill form, doesn’t mean it’s free of toxins and good for you. Pharmaceutical grade fish oil, such as the fish oil pills available at Welcome to cheap & Discount Coromega Omega-3 Fish oil
can provide you with the Omega 3 fish oil you need without causing you to ingest harmful toxins and chemicals.

Who Should Take It?

If you’re not taking an Omega fish oil supplement, chances are you should be. From young to old, Omega fish oil has been helping people with numerous health issues. And not only does Omega fish oil help with treating health issues, it also prevents health complications from arising.

Omega fish oil is good for your heart, your mind, and your joints. It has been used to treat everything from arthritis to eczema and studies indicate it can even prevent certain types of cancer.