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$alt_texts= array ('Benign prostatic hyperplasia, or BPH for short, is the enlargement of the prostate gland. It is caused by excess growth of cells in the prostate. This condition is not the same as prostate cancer','Alternate Names : Dysmenorrhea. Menstrual cramps are the pain and cramping some women experience during their monthly periods. The term dysmenorrhea usually refers to pain and cramps severe enough to prevent normal activity','An ectopic pregnancy occurs when a fertilized egg implants outside of the uterus. The most common site is within a fallopian tube. More rarely an embryo may implant within an ovary, in the cervix, or on the abdominal wall','Pregnancy is the period from conception to birth. A pregnancy may be complicated by health problems or lifestyle issues known as risk factors. These risk factors can affect the mother or fetus, or both','Topiramate (toe-PYRE-a-mate) is used to help control some types of seizures in the treatment of epilepsy. This medicine cannot cure epilepsy and will only work to help control seizures for as long as you continue to take it.','Irritable bowel syndrome, or IBS, is a condition characterized by abdominal cramping, bloating, gas, and other changes in the bowels','Depression is a medical condition that leads to intense feelings of sadness or despair. These feelings don\'t go away on their own. They are not necessarily related to a particular life event','Tacrolimus ( ta-KROE-li-mus) ointment is used for moderate to severe atopic dermatitis. This is a skin condition where there is itching, redness and inflammation, much like an allergic reaction','Type 2 diabetes mellitus, more often known as type 2 diabetes, is the most common type of diabetes','Personality disorders are chronic mental disorders','Presbyopia is an eye condition in which the lens loses the ability to focus over time');
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Cancer cells usually live in an environment with limited supplies of the nutrients they need to proliferate — most notably, oxygen and glucose. However, they are still able to divide uncontrollably, producing new cancer cells.
A new study from researchers at MIT and the Massachusetts General Hospital (MGH) Cancer Center helps to explain how this is possible. The researchers found that when deprived of oxygen, cancer cells (and many other mammalian cells) can engage an alternate metabolic pathway that allows them to use glutamine, a plentiful amino acid, as the starting material for synthesizing fatty molecules known as lipids. These lipids are essential components of many cell structures, including cell membranes.
The finding, reported in the Nov. 20 online edition of Nature, challenges the long-held belief that cells synthesize most of their lipids from glucose, and raises the possibility of developing drugs that starve tumor cells by cutting off this alternate pathway.
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