Orcee

Archive for the ‘Cancer’ Category

When harmful chemicals enter our cells, the cellular response is to try to change them into harmless substances and eliminate them from the body. The chemicals which are highly poisonous or toxic are very reactive and immediately react with the key molecules in the cell causing death of the cell. This may damage the organ and perhaps kill the person as well.

The amount of any carcinogen we are exposed to at a given time, is too small to cause such a drastic effect. The cells then try to convert the tiny amounts of these chemicals, in a step-wise manner to less harmful substances.

Risk of Cancer

A number of enzymes called detoxifying enzymes carry out this job. A substance entering the cells may be carcinogenic by itself and react with the molecules in the cells.

It is also possible that this substance may not be a carcinogen but may be converted into a carcinogen by detoxifying enzymes before it is made harmless. If this reaction occurs slowly, the carcinogenic substance will remain in the cell for a longer time and will have better chance to react with cellular molecules. In a large number of cases, these carcinogens react with the cell’s DNA and get attached to it. These molecules attached to the DNA form, what are called, ‘DNA adducts’ and damage the DNA. The cells normally have machinery to repair damage to DNA. There are a number of repair systems which carry out this work. Some remove the adducts. The repair system also removes a part of that strand of DNA which has been damaged. Then it uses a mechanism similar to that used in DNA replication to repair the breach. But such a system is prone to making mistakes. If a wrong base is put in the DNA during repair, it may change the code just like a mutation would. Thus, mutations get introduced during repair of damage caused Continue reading “Risk of Cancer” »

Non-melanoma skin cancers are a lot more general but fewer dangerous than malignant melanoma and hardly ever fatal. Non-melanoma skin cancer first and foremost compromises of two types of cancer: basal cell carcinoma and squamous cell carcinoma. Basal cell carcinoma and squamous cell carcinoma normally appear on sun-exposed skin after several years of exposure and also causes early ageing of the skin.

Non-malignant skin cancers are simply cured by minor surgery.

Non-melanoma skin cancers

If non-melanoma skin cancers not treated timely this will raise and damage – as a result before time treatment is suggested. The dilemma of basal cell carcinoma usually uses to take place in those persons who bring into play to rendering their body to the fiber glass dust and dry cleaning. The x-ray cure for treating this dilemma will be reasonably helpful however these treatment procedures do not totally take out this disease. The possibility of basal cell carcinoma also uses to occur with a union between the cumulative ultraviolet exposures. The cumulative sun exposure of a person body in middle age also shows the symptoms of the basal cell carcinoma.

The other non ultraviolet exposure also uses to add to the whole danger of arising of the basal cell carcinoma disease in the body. Other sources of the basal cell carcinoma are the ionizing radiation as well as high nutritional energy and the low ingestion of the vitamins along with the ingestion of chemicals dirt.

Another thing is exposure to arsenic affect to multiple basal cell carcinomas. It is very necessary for the victim of the similar problem to be familiar with this rigorous problem at once and has to choose the proper Continue reading “Non-melanoma skin cancers” »

Malignant melanoma is the uncommon, however most serious form of skin cancer and affects the melanocytes which is pigment-producing cells establish in the skin and can come into view as a fresh mole, or take place from an existing mole on the skin. Cancer is a state in which one type of cell grows with no limit in a higgledy-piggledy fashion, disorderly and replacing normal tissues and their functions, a lot like wild plants over-growing a garden.

Normal melanocytes exist in in the external layer of the skin and make a brown pigment called melanin, which is in charge for skin color. Melanoma takes place when melanocytes become cancerous,

Malignant melanoma skin cancer

grow, and attack other tissues. Malignant melanoma has the latent to multiply to other sites or organs contained by the body but are treatable if care for early.

Melanoma skin cancer establishes in the melanocyte cells of the skin which protects our body from warmth, infection, injury, water loss and sunlight. Its outmost layer is called the epidermis, which includes flat, scaly squamous cells. Squamous cells hold a protein that makes the skin strong, although flexible. Basal cells and melanocytes which are in charge of the skin color lie deeper in the epidermis. Under the epidermis is the dermis that has nerves, lymphatic vessels, blood vessels, oil glands, sweat glands, and hair follicles.

Malignant melanoma is becoming more familiar, probably since of the increasing number of people from hot climates that are uncovered to direct sunlight. Cases of malignant melanoma have twice every ten years for the past fortyyears. This is almost positively as holidays in sun-drenched climates have turned out Continue reading “Malignant melanoma skin cancer” »