Parathyroid hormone is secreted from the four parathyroid glands, which are small glands in the neck, located behind the thyroid gland. Parathyroid hormone regulates calcium levels in the blood, largely by increasing the levels when they are too low. It does this through its actions on the kidneys, bones and intestine:
De novo literally means something akin to from the beginning or anew. Man at Doctor's Visit. Prostate Cancer. The Latin expression de novo literally means something akin to from the beginning or anew. When used in reference to prostate cancer (or any other cancer), it refers to the first occurrence of cancer in the body.
Skin cancer occurs when errors (mutations) occur in the DNA of skin cells. The mutations cause the cells to grow out of control and form a mass of cancer cells. Cells involved in skin cancer. Skin cancer begins in your skin's top layer â the epidermis. The epidermis is a thin layer that provides a protective cover of skin cells that your body continually sheds. The epidermis contains three main types of cells: