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.
Nadir In cancer treatment, nadir commonly refers to the lowest point that an individual's blood cell count will reach as a side effect of chemotherapy or radiation therapy. The nadir for each blood cell type occurs at different times. The nadir for white blood cells and platelets normally occurs around day seven to 14 following the last day of treatment.