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Q
Q10
A substance found in most tissues in the body and in many
foods. It can also be made in the laboratory. It is used by
the body to produce energy for cells, and as an antioxidant.
It is being studied in the treatment of cancer and in the
relief of side effects caused by some cancer treatments.
Also called coenzyme Q10, CoQ10, vitamin Q10 and ubiquinone.
qi
In traditional Chinese medicine, vital energy or life force
that keeps a person’s spiritual, emotional, mental and
physical health in balance.
qigong
A form of traditional Chinese mind/body exercise and
meditation that uses slow and precise body movements with
controlled breathing and mental focusing to improve balance,
flexibility, muscle strength and overall health.
QS21
A substance from plants that is being studied together with
vaccine therapy for its ability to improve the way the
immune system responds to disease. It belongs to the family
of drugs called saponin adjuvants.
Quadramet
A drug used to treat pain caused by bone cancer and other
cancers that have spread to the bones. Quadramet belongs to
the family of drugs called radiopharmaceuticals. Also called
samarium Sm 153 lexidronam pentasodium.
quadrantectomy
Surgical removal of the region of the breast (approximately
one quarter) containing cancer.
quality of life
The overall enjoyment of life. Many clinical trials assess
the effects of cancer and its treatment on the quality of
life. These studies measure aspects of an individual’s sense
of well-being and ability to carry out various activities.
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