Bone marrow is the soft spongy tissue inside the bones that give rise to stem cells. Stem cells consist of cells that have not differentiated into a "type." As these stem cells mature, they differentiate according to their intended function and...
Hematopoietic stem cells are populations of slowly proliferating stem cells in the bone marrow, found in the center of bones, that give rise to blood cells. The cells are found in compartments called niches, and the interaction between the stem...
Nosebleeds, or epistaxis, is a symptom of many diseases, conditions and disorders ranging from mild to serious and life-threatening. A bloody nose can occur at any age and in conjunction with many other symptoms. Nosebleeds may occur frequently or...
Leukemia is a frightening diagnosis, and until the last few decades it was a disease with few good treatment options. But advances in chemotherapy and other types of treatment have markedly improved the likelihood of achieving remission and...
A bone marrow transplant delivers healthy bone marrow stem cells, the cells that produce all of the blood cells of the body, to a person who needs them. Instead of through a surgical procedure, a bone marrow transplant is done via an IV, sending...
The liver and spleen share common blood circulation pathways. Due to the circulatory link between the liver and spleen, many disease processes affect both organs. Infections, blood cell diseases, liver diseases, cancer and inherited disorders can...
A 2002 report by the Centers for Disease Control indicated that teen smoking was down compared to previous years. However, the statistics are still high regarding the percentage of teens that have tried cigarettes. The online source Teen Help...
Leukemia refers to a group of cancers that arise from the white blood cell-forming tissues of bone marrow. Leukemia develops when the genetic material of this tissue undergoes changes that lead to uncontrolled replication of the cell type...
Lymphoma is a cancer in the lymphatic system. Non-Hodgkin's lymphoma, or NHL, is the most common type of lymphoma. Cells in the lymphatic system become abnormal, divide and spread to other body parts. Conventional treatments for NHL include...
Vitamin B-12 has the most complex chemical structure of all vitamins, according to the Linus Pauling Institute at Oregon State University. It contains a metal ion, cobalt, in its chemical structure. Vitamin B-12 is an essential water-soluble...
Night sweats may be defined as excessive sweating while trying to sleep at night. Commonly, causes of night sweats are due to nonserious causes. However, in combination with other symptoms, night sweats could be due to something more serious, such...
Blood or hematologic cancers describe a large group of cancers that originate in the blood or bone marrow. Leukemias start in blood-forming cells of the bone marrow and are called myeloid leukemias. Lymphomas start in cells that make up the immune...
