April 17, 1998 |
They're critical building blocks of the body. They can restore a damaged blood-forming system and create the white and red blood cells and platelets that help the body heal, carry oxygen to tissues and fight off infections. They may be the key to treating leukemia, Hodgkin's disease, lymphoma and Fanconi's anemia. But the usual source of the so-called stem cells has been the bone marrow - and obtaining them requires expensive bone-marrow transplants, an exact donor match, and willing donors for a painful operation.
December 26, 2011 |
Question: Can you explain acute myelogenous leukemia? Someone we know was recently diagnosed with it, and two weeks later he was dead. What makes it so deadly? Answer: Acute myelogenous leukemia, or AML, is a cancer of the blood in which immature, abnormal white blood cells grow rapidly and uncontrollably in the bone marrow and interfere with its ability to produce red blood cells, healthy white blood cells, and platelets. It's a fairly rare cancer, with men affected more often than women.
January 11, 2011 |
Jock Davis smiled and sat up on his bed at Pennsylvania Hospital last week, looking more like a guy on vacation than on high-dose chemotherapy for a blood cancer called multiple myeloma. He had come all the way from Rochester, N.Y., for a stem cell transplant because Patricia Ford, the doctor directing his care, was willing to withhold a standard part of the multi-week treatment: a blood transfusion. As a Jehovah's Witness, Davis, 48, has religious objections to receiving blood, including his own. Ford, director of the hospital's Center for Bloodless Medicine and Surgery, performed the world's first no-transfusion stem cell transplant more than 15 years ago. While most centers still consider it too risky to attempt, Ford keeps making history.
April 2, 2012 |
Question: I am a virile, sexually active, middle-aged male. Prior to engaging in sex, my partner and I enjoy imbibing alcoholic beverages to loosen up/set the mood. How is it that alcohol has a positive effect on achieving an erection? Would testosterone supplements help? ?Answer: Alcohol, in moderate quantities, helps to reduce anxiety, stress, and inhibition through its role as a central nervous suppressor. Psychological impotence and performance anxiety can be helped by a modest amount of alcohol before initiating sex. It can slow the heart rate and increase the activity of the parasympathetic nervous system - the nerves that regulate digestion, slow down the heart rate, and increase the flow of blood into the penis and clitoris.
December 17, 1987 |
A naturally occurring protein that could "revolutionize" cancer treatment produced promising results in the first test on patients with malfunctioning bone marrow, researchers reported yesterday. "We're very, very encouraged," said Jordan U. Gutterman, chairman of the department of clinical immunology and biological therapy at the M. D. Anderson Hospital and Tumor Institute in Houston, who headed the study published in this week's New England Journal of Medicine. "I think this is going to revolutionize chemotherapy and radiation therapy.
November 20, 2012 |
Is there donor DNA in transfused blood? Q: Since our DNA can be detected from our blood, do we also pick up a blood donor's DNA when we receive a blood transfusion? A: The short answer is no. When we receive blood, we are not usually receiving a blood donor's whole blood; rather, only the red blood cells. The DNA resides in a cell's nucleus, and since mature red blood cells don't have a nucleus they don't have any DNA material. Whole blood contains not only red blood cells, but also other components like serum, white blood cells, platelets, and antibodies.
July 16, 1989 |
Competitive athletes always seem to look for the winning edge, that special ingredient to help them run faster or jump higher than their opponents. Some training methods, such as strength building or nutritional planning, legitimately help mold men and women into superior competitors and make them better contenders than the next athlete. Other elements include steroids, which are illegal, synthetic stimulants that temporarily provide athletes with an artificial means of improving their performances.
January 22, 2007 |
Charlotte Weiner Yudis, 67, a printmaker and museum guide from Moorestown, died of lung cancer Jan. 9 at the Hospital of the University of Pennsylvania. Mrs. Yudis studied art while volunteering as a guide at the Philadelphia Museum of Art, and in 1990 took a printmaking class at the Fleisher Art Memorial in South Philadelphia. She had medical laboratory experience and began using human blood cells to create art in a way "no one else had ever done," said her husband, Charles.
April 3, 1991 |
Q: A few months ago, I had a bone marrow exam that revealed I have myelophthisic anemia. I'm wondering if there is any way at all to combat this syndrome, which I understand is rare? A: Myelophthisic anemia is due to failure of the bone marrow to produce enough blood cells. This occurs when the blood-forming cells in the marrow are replaced by other tissue. For instance, cancer cells that spread to the bone marrow (from distant sites) will eventually crowd out marrow cells, leading to anemia and - sometimes - to a platelet deficiency and abnormal white blood cells.
December 11, 1991 |
Q: What is the cause of sleepwalking? Who does it usually affect? What are some of the symptoms. And is there a cure for this condition? A: Sleepwalking (somnambulism) is a poorly understood and relatively rare disorder, most common in children and marked by the performance of complex acts during what appears to be deep sleep. The patient seems to be out of contact with the environment while experiencing a vivid, hallucinatory drama. The eyes are usually open and the patient may mumble repetitiously, walk about and engage in a variety of activities.