How does bone puncture extract bone marrow?

Bone marrow is the hematopoietic tissue of the human body and is located in many bones of the human body. There are two types of bone marrow in adults: red bone marrow and yellow bone marrow. Red bone marrow can make red blood cells, platelets and various white blood cells. Platelets have hemostatic effect, white blood cells can kill and inhibit various pathogens, including bacteria, viruses, etc.; some lymphocytes can produce antibodies. Therefore, the bone marrow is not only a hematopoietic organ, but also an important immune organ. Yellow marrow is primarily adipose tissue, which can be converted into red marrow when the body is anemic. 2. Will donating bone marrow affect the health of the donor? Donating bone marrow will not affect a person's health. Many people think that donating bone marrow is taking the spinal cord, which is a complete misunderstanding. Bone marrow transplantation requires the body's red bone marrow - hematopoietic stem cells. An adult's hematopoietic stem cells are 3 kilograms, and a donor can save a white blood patient with less than 10 grams of bone marrow stem cells, so it will not weaken its immunity and hematopoietic ability. Bone marrow is a highly viable tissue. For healthy donors, the amount of donated stem cells can be replenished in about 10 days. 3. At what age is a healthy person suitable for bone marrow donation? Healthy people between the ages of 18 and 55 can donate bone marrow. 4. What is a bone marrow transplant? Bone marrow transplantation is the transfer of blood-forming stem cells in the bone marrow from one person to another (usually by intravenous infusion). To be precise, bone marrow transplantation is the transplantation of hematopoietic stem cells. 5. Who needs a bone marrow transplant? Serious diseases of the human blood system and immune system, such as leukemia (commonly known as blood cancer). For patients with lymphoma, aplastic anemia, thalassemia, and severe radiation sickness, the hope for continued survival is bone marrow transplantation. In my country, about 4 million patients with various diseases are waiting for bone marrow transplantation every year. In addition to the donor's rest weight, blood pressure and other physical health conditions and blood donation conditions, bone marrow donors are generally required to be over 18 years old and under 45 years old, preferably with experience in donating blood or donating platelets. Once sampling, matching is also required. Those who are more mature in body and mind, in order to treat patients, in a strict sense, donating marrow is actually donating hematopoietic stem cells. The one-time donation is about 20 grams, which has no effect on the body. Citizens can donate blood voluntarily at the same time. Fill in a voluntary marrow donation form, so that the hospital can invite volunteers to rescue the wounded at any time after entering the relevant information into the information database. Donate bone marrow like 1. How to become a voluntary donor? If you are between the ages of 18 and 55 and are in good health, you can call the bone marrow donation hotline of the China Marrow Bank: (Beijing) 010-65126600, (Shanghai) 021-62478117, or register with the Red Cross Society at or above the district or county level. Fill out the volunteer donation form and related forms. 2. What are the steps for donating bone marrow? 1) After registration, the bone marrow bank or the Red Cross will arrange for you to test 5 ml of blood, and store the HLA typing results of the test in the Chinese hematopoietic stem cell donor database for patients to find matching. 2) The donor and the recipient have the same initial matching type. The staff of the bone marrow bank will introduce the donation process to you in detail, and at the same time, please accept the general examination. 3. How to extract bone marrow? There are two methods for extracting bone marrow hematopoietic stem cells: First, the doctor punctures the donor's iliac bone to collect hematopoietic stem cells in the bone marrow. There is some pain within a day or two after the operation, but it can be completely recovered within a week. The second is to use scientific methods to effectively mobilize hematopoietic stem cells from bone marrow and other parts to release a large amount into the peripheral blood, collect them from the arm vein of the donor, and separate the hematopoietic stem cells by machine, and return the remaining blood to the donor. in vivo. 4. Will donating bone marrow affect my health? Many people think that donating bone marrow is taking the spinal cord, which is a complete misunderstanding. Bone marrow transplantation requires the body's red bone marrow - hematopoietic stem cells. An adult's bone marrow weighs 3 kilograms, and a marrow donor provides less than 10 grams of bone marrow hematopoietic stem cells to save the life of a leukemia patient. Bone marrow is a tissue with strong regeneration ability. Generally, healthy people can make up the amount of donated stem cells in about ten days after donating hematopoietic stem cells. Therefore, donating bone marrow will not affect a person's physical health.

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