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Free research papers and essays on topics related to: lymph node

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  • Aids - 1,103 words
    Aids Aids Acquired Immune Deficiency Syndrome (AIDS), suppresses the immune system related to infection with the human immunodeficiency virus (HIV). A person infected with HIV gradually loses immune function along with certain immune cells called CD4 T-lymphocytes or CD4 T-cells, causing the infected person to become vulnerable to pneumonia, fungus infections, and other common ailments. With the loss of immune function, a clinical syndrome (a group of various illnesses that together characterize a disease) develops over time and eventually results in death due to opportunistic infections (infections by organisms that do not normally cause disease except in people whose immune systems have be ...
    Related: aids, deficiency syndrome, human immunodeficiency, acquired immune, bacterial
  • Brain Cancer - 635 words
    Brain Cancer The body normally forms new cells only when they are needed to replace old or damaged ones. If something happens to disturb this controlled process, abnormal or excessive cells are produced. When this occurs a tumor is developed. This is known as cancer. When a tumor is developed on the brain, it is called a brain tumor or brain cancer. Brain tumors can be benign or malignant (benign being not cancerous and malignant being cancerous). Both types can be deadly when dealing with the brain. Benign brain tumors consist of very slow growing cells. They have distinct borders and rarely spread to other locations. When viewed under a microscope, the cells of a benign tumor have an almos ...
    Related: brain, brain cancer, brain tumor, cancer, cancer research
  • Breast Cancer - 1,005 words
    Breast Cancer INCIDENCE Breast cancer is the most common malignancy among women and has the highest fatality rate of all cancers affecting this sex. It is the leading cause of death among women aged 35-54. In 1999 an estimated 175,000 women were diagnosed with breast cancer. That is one woman every three minutes. At the same time 43,000 will die, at the rate of one every two minutes. The incidence of men diagnosed with breast cancer is rare, however it does occur. Approximately 1,300 men a year are diagnosed, and 400 die annually due to the disease. A total of 75% of all breast cancers occur in women with no known risk factors. 80% of breast cancers occur in women aged 50 and up. The mortali ...
    Related: breast, breast cancer, cancer, cancer prevention, personal history
  • Hodgkins Disease - 1,393 words
    Hodgkin's Disease Hodgkin's Disease Cancers arising from the lymph nodes or other sites of lymphoid tissue are broadly termed lymphomas. This group of diseases is divided into Hodgkin's disease and non-Hodgkin's lymphoma. In both conditions, there is a replacement of normal lymphatic tissue by collections of abnormal lymphoma cells. The lymphatic system are a complex network of specialised cells and organs that defend the body against infection. Lymphatic organs include the bone marrow, spleen, thymus gland, lymph nodes, tonsils, adenoids, appendix and clumps of tissue in the small bowel. A function of the lymphatic system is to nurture and mature the B and T-lymphocytes (white blood cells v ...
    Related: hodgkin's disease, bone marrow, gastrointestinal tract, white blood cells, compression
  • How Aids Has Affected Our Society - 1,238 words
    How Aids Has Affected Our Society Science - Health How Aids Has Affected Our Society Today more Americans are infected with STD's than at any other time in history. The most serious of these diseases is AIDS. Since the first cases were identified in the United States in 1981, AIDS has touched the lives of millions of American families. This deadly disease is unlike any other in modern history. Changes in social behavior can be directly linked to AIDS. Its overall effect on society has been dramatic. It is unknown whether AIDS and HIV existed and killed in the U.S. and North America before the early 1970s. However in the early 1980s, "deaths by opportunistic infections, previously observed ma ...
    Related: aids, aids epidemic, aids research, society today, social behavior
  • Lymphoma - 648 words
    Lymphoma In this paper you will be informed about the cause, symptoms, and treatment of lymphoma. You will also learn about the lymphatic system and how this cancer affects it. I. Lymphatic system A. Function of the system B. Parts of the system. C. How cancer affects the system II. Types of lymphoma A. Hodgkin's lymphoma B. Non-Hodgkin's lymphoma III. Cause of lymphoma A. HIV B. Organ transplant IV. Treatment A. Radiation B. Chemotherapy C. Bone marrow transplant Lymphoma Lymphoma is cancer of the lymphatic system. "Any group of cancers in which the cells of lymphoid tissues multiply unchecked." Clayman, 657. This is the system which manufactures and circulates lymph throughout the body. Th ...
    Related: lymphoma, immune system, older people, organ transplant, hodgkin
  • Mononucleosis - 793 words
    Mononucleosis Mononucleosis, also known as "Mono," is an illness caused by an infection with a virus. The virus, The Epstein-Barr Virus (EBV) is usually the cause of Mono. Other infectious viruses, like cytomegalovirus (CMV) can also produce illnesses like Mono. Most of the people who get Mono are adolescents and young adults. In developed nations, the majority of the people has been exposed to the Epstein- Barr virus by the age of 18. That means that many adults have had infections as children caused by the Mono virus (which were asymptomatic or mild). Once you get Mono, or the Epstein-Barr virus you are immune to re-infection. Some of the symptoms of Mono are a painful sore throat with ton ...
    Related: mononucleosis, college students, immune system, white blood cells, medicine
  • Orphan Drugs - 1,782 words
    Orphan Drugs The term orphan drug refers to a product that treats a rare disease affecting fewer than 200,000 Americans. Orphan drugs help the companies that manufacture them, under the Orphan drug act. Under the act a small company can pick up a product that would be worth anywhere from $5 million to $20 million a year. The orphan drug act has helped in the development of products to treat drug addiction, leprosy, hemophilia, and rare cancers, as well as diseases most people have never heard of, such as cryptosporidiosis (an infection caused by a protozoan parasite found in animals' intestines that causes diarrhea, fever, weight loss, and lymph node enlargement) and neurocysticerosis. In th ...
    Related: drug addiction, drugs, orphan, lymph node, weight loss
  • Ovarian Cancer - 2,095 words
    ... of segments of chromosomes (particularly 3p and 6q) in some tumors is consistent with a role for loss of tumor suppressor genes. Recently, a genetic linkage study of familial breast/ovary cancer suggested linkage of disease susceptibility with the RH blood group locus on chromosome 1p. Allele loss involving chromosomes 3p and 6q as well as chromosomes 11p, 13q, and 17 have been frequently observed in ovarian cancers. Besides allele loss, point mutations have been identified in the tumor suppressor gene p53 located on chromosome17p13. Deletions of chromosome 17q have been reported in sporadic ovarian tumors suggesting a general involvement of this region in ovarian tumor biology. Allelic ...
    Related: cancer, ovarian, ovarian cancer, lymph node, treatment programs
  • Prostate Cancer - 1,160 words
    Prostate Cancer Prostate Cancer Cancer of the prostate, a common form of cancer, is a disease in which cancer (malignant) cells are found in the prostate. The prostate is on the male sex glands, and is located just below the bladder and in front of the rectum. The size of the prostate is about the size of a walnut. It surrounds the part of the urethra, the tube that carries urine from the bladder to the outside of the body. The prostate makes fluid that becomes part of the semen, which contains sperm. Prostate cancer is most commonly found in older men. As a man gets older, his prostate may get bigger and block the urethra of bladder, which can cause him to have difficulty urinating or even ...
    Related: cancer, prostate, prostate cancer, lymph node, side effects
  • The - 1,929 words
    ... hich are usually non-syncytium-inducing, require the CCR-5 receptor, which is found on both monocytes and T lymphocytes. This illustrates why these isolates can infect monocytes and primary lymphocytes, both of which express CCR-5, but not T-cell lines, which lack this co-receptor. By contrast, T-cell-tropic strains cannot infect monocytes because they lack the CXCR-4 co-receptor. CD8+ T cells are thought to also secrete other soluble factors-as yet unidentified-that suppress HIV replication. The Loss of Cells of the Immune System Researchers around the world are studying how HIV destroys or disables CD4+ T cells, and it is thought that a number of mechanisms may occur simultaneously in ...
    Related: side effects, fatigue syndrome, lymph node, vulnerable
  • Thyroid Cancer - 1,074 words
    ... is inserted through the mouth and into the trachea. A small incision is made in the neck, and either side of the thyroid or the entire lump is removed. The sample is sent to a laboratory to be examined. If thyroid cancer is detected, the thyroid is removed. The incision is then stitched up. A patient who undergoes a thyroid excisional biopsy will experience drowsiness, a mild sore throat, and some discomfort from the incision. The test is highly accurate and costs any where from $300 to $1,000. (Health Answers html) * Laryngoscopy- it is the examination of the interior of the larynx with either the aid of a small mirror held against the back of the palate or a flexible viewing tube call ...
    Related: american cancer, cancer, cancer institute, national cancer, national cancer institute, thyroid
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