Only show
results for:

Topics related to "thymus"

thymus gland
thymus gland , mass of glandular tissue located in the neck or chest of most vertebrate animals. In humans, the thymus is a soft, flattened, pinkish-gray organ located in the upper chest under the breastbone. It is relatively large in the newborn infant (about the size of the baby's fist), and conti... Read more
sweetbread
sweetbread The thymus gland (known as throat sweetbread) and the pancreas (stomach sweetbread), especially of the calf and lamb (although beef sweetbreads are sometimes eaten), are considered delicacies and are rich in mineral elements and vitamins. The pancreas is generally preferred to the thymus... Read more
thyme
thyme , any species of the genus Thymus, aromatic herbs or shrubby plants of the family Labiatae ( mint family). The common thyme, which is used as a seasoning herb and yields a medicinal essential oil containing thymol, is the Old World T. vulgaris, an erect plant with grayish branches. It is ... Read more
cytosine
cytosine , organic base of the pyrimidine family. It was isolated from the nucleic acid of calf thymus tissue in 1894. A suggested structure for cytosine, published in 1903, was confirmed in the same year when that base was synthesized in the laboratory. Combined with the sugar ribose in glycosi... Read more
thymine
thymine , organic base of the pyrimidine family. Thymine was the first pyrimidine to be purified from a natural source, having been isolated from calf thymus and beef spleen in 1893-4. The accepted structure of the thymine molecule was published in 1900; this structure was confirmed when several i... Read more
endocytosis
endocytosis , in biology, process by which substances are taken into the cell . When the cell membrane comes into contact with a suitable food, a portion of the cell cytoplasm surges forward to meet and surround the material and a depression forms within the cell wall. The depression deepens and ... Read more
immunology
immunology branch of medicine that studies the response of organisms to foreign substances, e.g., viruses , bacteria , and bacterial toxins (see immunity ). Immunologists study the tissues and organs of the immune system (bone marrow, spleen , tonsils , thymus, lymphatic system ), its speci... Read more
endocrine system
endocrine system , body control system composed of a group of glands that maintain a stable internal environment by producing chemical regulatory substances called hormones . The endocrine system includes the pituitary gland , thyroid gland , parathyroid glands , adrenal gland , pancreas , ov... Read more
immunity
immunity ability of an organism to resist disease by identifying and destroying foreign substances or organisms. Although all animals have some immune capabilities, little is known about nonmammalian immunity. Mammals are protected by a variety of preventive mechanisms, some of them nonspecific (e.... Read more

Encyclopedia entries related to "thymus"

thymus
Book article from: The Oxford Companion to the Body thymus The thymus has had a varied history in terms of attribution of function, from at...lymphocytes. Up until the early twentieth century, an excessively large thymus was from time to time held responsible for some unexplained infant deaths... Read more
thymus gland
Book article from: The Columbia Encyclopedia, Sixth Edition ...most vertebrate animals. In humans, the thymus is a soft, flattened, pinkish-gray organ...surrounding tissue. The functions of the thymus were not well understood until the early...Beginning during fetal development, the thymus processes many of the body's lymphocytes... Read more
Thymic Cancer
Encyclopedia entry from: Gale Encyclopedia of Cancer ...types of tumors that have originated within the thymus gland. Description The thymus is located in the upper chest just below the neck...the body's immune system. Once released from the thymus, lymphocytes travel to lymph nodes where they help... Read more
Thymoma
Encyclopedia entry from: Gale Encyclopedia of Cancer ...Definition Thymomas are the most common tumor of the thymus. Description The thymus is located in the upper chest just below the neck...the body's immune system. Once released from the thymus, lymphocytes travel to lymph nodes where they help... Read more
DiGeorge Syndrome
Encyclopedia entry from: Gale Encyclopedia of Children's Health: Infancy through Adolescence ...by absence or underdevelopment of the thymus and parathyroid glands. It is named for...first described it in 1965. Normally the thymus gland is located below the thyroid gland...In children with DiGeorge syndrome, the thymus and parathyroid glands are missing or... Read more
Sudden Infant Death Syndrome
Encyclopedia entry from: Encyclopedia of Children and Childhood in History and Society ...accidental suffocation in a family bed), and thymus death, or status lymphaticus. The reasons...long thought to be due to an enlarged thymus. This was a misunderstanding, but it lasted...modern times. Normal infants have large thymus glands, but most infant deaths occurred... Read more
sweetbread
Book article from: The Columbia Encyclopedia, Sixth Edition The thymus gland (known as throat sweetbread) and the pancreas (stomach sweetbread...mineral elements and vitamins. The pancreas is generally preferred to the thymus. Sweetbreads are highly perishable and, immediately after removal from refrigeration... Read more
T-cell
Book article from: World Encyclopedia T-cell ( Thymus-cell or T-lymphocyte ) Type of lymphocyte (white blood cell) that is the key...infected with a virus. T-cells are produced in the bone marrow and then move to the thymus gland . See also acquired immune deficiency syndrome (AIDS) Read more
Mediastinal Tumors
Encyclopedia entry from: Gale Encyclopedia of Cancer ...separates the lungs and contains the heart, aorta, esophagus, thymus, and trachea. Mediastinal tumors are also known as neoplasms...overlap. The anterosuperior compartment contains a vein and the thymus gland, superior vena cava, aortic arch, and thyroid gland. More... Read more
Thyme
Encyclopedia entry from: Gale Encyclopedia of Alternative Medicine Thyme Description Thyme ( Thymus vulgaris L. ), known as garden thyme, and T. serpyllum , known as creeping thyme, mother of thyme, wild thyme, and mountain thyme... Read more

Dictionary entries related to "thymus"

thymus
Book article from: A Dictionary of Biology thymus An organ, present only in vertebrates, that is concerned...of the lower neck, above and in front of the heart. The thymus undergoes progressive shrinkage (involution) throughout...Haemopoietic stem cells from the bone marrow migrate to the thymus, attracted by chemotactic factors, and begin to ... Read more
chest sweetbread
Book article from: A Dictionary of Food and Nutrition chest sweetbread The thymus of an animal, as distinct from the gut sweetbread (sometimes called simply sweetbread), which is the pancreas . Read more
thyme
Book article from: A Dictionary of Food and Nutrition thyme The aromatic leaves and flowering tops of Thymus spp. used as flavouring in soup, meat, fish, poultry dressing, and sausages. Read more
sweetbread
Book article from: A Dictionary of Food and Nutrition sweetbread Butchers' term for pancreas (gut sweetbread) or thymus (chest sweetbread). Read more
T-cell
Book article from: A Dictionary of Nursing T-cell n. a type of lymphocyte that matures in the thymus and is primarily responsible for cell-mediated immunity. cytotoxic T-c. a T-cell that destroys cancerous cells, virus-infected... Read more
thymocyte
Book article from: A Dictionary of Nursing thymocyte ( th'y -moh-syt) n. a lymphocyte within the thymus. Read more
T cell
Book article from: A Dictionary of Zoology T cell A type of lymphocyte manufactured in the thymus gland (hence the name) that is involved in the cell-mediated response . There are several classes of T cell including: helper T... Read more
thymitis
Book article from: A Dictionary of Nursing thymitis (th'y- my -tis) n. inflammation of the thymus. Read more
status lymphaticus
Book article from: A Dictionary of Nursing status lymphaticus (lim- fat -ik-ŭs) n. enlargement of the thymus gland and other parts of the lymphatic system, formerly believed to be a predisposing cause to sudden death in infancy and childhood. Read more
thymectomy
Book article from: A Dictionary of Nursing thymectomy (th'y- mek -tŏmi) n. surgical removal of the thymus. Read more

Related newspaper, magazine, and trade journal articles from HighBeam Research

Thymus transplant could save babies, study finds.(researchers find that babies born without a thymus might live with transplantation)(Brief Article)
Newspaper article from: Transplant News; 8/11/2003; 158 words ; Babies born without a thymus, an essential component of the immune...the United States each year without a thymus gland, the organ that programs T-cells...France said they implanted discarded thymus tissue in 12 children without thymuses... Read more
Aberrant thymus and parathyroid gland presenting as a recurrent lateral neck mass: a case report.
Magazine article from: Ear, Nose and Throat Journal; 7/1/2006; ; 700+ words ; ...embedded within a histologically normal thymus. The presence of thymic and parathyroid...third branchial pouch gives rise to the thymus and the inferior parathyroid glands, and...tissue embedded within an ectopic cervical thymus. Only a few such cases have been reported... Read more
Transplanting Thymus Tissue May Save Babies Born Without Immune Systems.(Duke University Medical Center )(Brief article)
Newspaper article from: Transplant News; 11/1/2006; 67 words ; ...treated seven of 12 children born without a thymus, the organ that generates immune cells...of Blood, demonstrates that transplanting thymus tissue normally discarded during cardiac...to save the lives of children without a thymus Read more
Adult Ectopic Thymus Adjacent to Thyroid and Parathyroid.
Magazine article from: Archives of Pathology & Laboratory Medicine; 6/1/2001; ; 665 words ; ...unique image of thyroid, parathyroid, and thymus is depicted in one field at X10 magnification...OMITTED] The embryologic development of the thymus originates high in the neck in early fetal...a process of progressive descent. The thymus commonly shares its origins with the inferior... Read more
Kaposiform Hemangioendothelioma of the Thymus.
Magazine article from: Archives of Pathology & Laboratory Medicine; 10/1/2000; ; 700+ words ; ...have an extensive tumor involving the thymus. REPORT OF A CASE An infant was brought...biopsy of the lesion. Intraoperatively, thymus appeared replaced by a tumor that was...evident centrally within lobules. The thymus was depleted of lymphocytes. Although... Read more
Aging gracefully with thymus extract, DHEA, yoga and calorie restriction.(Therapeutic Nutrition)
Magazine article from: Townsend Letter for Doctors and Patients; 12/1/2005; ; 700+ words ; Aging, like the weather, is a subject everyone talks about but no one seems able to do much about. Theories and nostrums abound, from wrinkle creams to hormone supplements, many with compelling evidence in their favor, but none has earned the consensus of the scientific community, save one. There Read more
Stem cells could help rebuild the immune system, repair vocal chords.(Brief Article)
Newspaper article from: Transplant News; 8/12/2002; 276 words ; ...experiments, scientists have used stem cells to grow thymus organs in mice and to repair damaged vocal chords...T-cells, which then generated complete and functional thymus glands. The thymus, a small lymphoid organ situated in the neck, is... Read more
Ectopic Cervical Thymic Tissue: Diagnosis by Fine Needle Aspiration.
Magazine article from: Archives of Pathology & Laboratory Medicine; 2/1/2001; ; 700+ words ; Diagnosis by Fine Needle Aspiration The thymus is a primary lymphoid organ in infancy...cell-mediated immunity. Ectopic cervical thymus is rarely reported, because thymic vestiges...ILLUSTRATION OMITTED] COMMENT The primordial thymus begins to appear early in the sixth week... Read more
Increased apoptosis in a variety of tissues of zinc-deficient rats.(Abstract)
Magazine article from: Alternative Medicine Review; 12/1/2001; 348 words ; ...investigate histopathological changes in thymus, testis, skin, esophagus, kidney and liver...Zn diet. After 4 weeks, atrophy of the thymus was seen. After 5 weeks, oligospemia was...observed in the liver or kidney. In the thymus and testis of rats on the 0% Zn diet... Read more
Cytochroma discovers functional role for an orphan cytochrome P450.(Brief Article)
Newspaper article from: BIOTECH Patent News; 11/1/2001; 425 words ; ...products, of human cytochrome P450TEC (Thymus Expressed Cytochrome) and uncovered its potential role in thymus function. This enzyme was discovered using...tissue expression profile in adult human thymus. Cytochroma demonstrated that P450TEC... Read more