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 mondofacto - Online Medical Dictionary
Category: Health and Medicine > Medical Dictionary
Date & country: 26/01/2008, UK
Words: 116197


haemolysinogen
The antigenic material in red blood cells that stimulates the formation of haemolysin. ... (05 Mar 2000) ...

haemolysins
Substances, usually of biological origin, that destroy blood cells; they may be antibodies or other immunologic factors, toxins, enzymes, etc.; haemotoxins are toxic to blood in general, including the clotting mechanism; haematotoxins may refer to the haematopoietic system. ... (12 Dec 1998) ...

haemolysis
<haematology> Disruption of the integrity of the red cell membrane causing release of haemoglobin. ... Haemolysis may be caused by bacterial haemolysins, by antibodies that cause complement dependent lysis, by placing red cells in a hypotonic solution or by defects in the red cell membrane. ... Origin: Gr. Lysis = dissolution ... (18 Nov 1997)
haemolytic
Destructive to blood cells, resulting in liberation of haemoglobin. ... Synonym: haematolytic, haemotoxic, haematotoxic, haematoxic. ... (05 Mar 2000) ...

haemolytic anaemia
<disease, haematology> Anaemia resulting from reduced red cell survival time and haemolysis, either due to an intrinsic defect in the erythrocyte (hereditary spherocytosis or ellipsocytosis, enzyme defects, haemoglobinopathy) or an extrinsic damaging agent. ... For example autoantibody (autoimmune haemolytic anaemia), iso antibody, parasitic i …

haemolytic anaemia of newborn
Synonym for erythroblastosis foetalis ... <haematology> A condition which develops in the foetus due to an incompatibility between the mother's blood type (RH factor) and the baby's. Maternal antibodies, which enter the foetal circulation during delivery attack the baby's red blood cells leading to haemolysis (rupture of the cells). ... Symptom …

haemolytic chain
The haemolysis that occurs when complement is activated by the previously formed union of erythrocytes and specific antibody. ... (05 Mar 2000) ...

haemolytic disease of newborn
Synonym for erythroblastosis foetalis ... <haematology> A condition which develops in the foetus due to an incompatibility between the mother's blood type (RH factor) and the baby's. Maternal antibodies, which enter the foetal circulation during delivery attack the baby's red blood cells leading to haemolysis (rupture of the cells). ... Symptom …

haemolytic disease of the newborn
Abnormal breakup of red blood cells in the foetus or newborn. This is usually due to antibodies made by the mother directed against the baby's red cells. It is typically caused by rh incompatibility, that is differences between the mother and baby uinvolving the rh blood group. ... (12 Dec 1998) ...

haemolytic gas
A poisonous gas, such as arsine, inhalation of which causes haemolysis with haemoglobinuria, jaundice, gastroenteritis, and nephritis. ... (05 Mar 2000) ...

haemolytic jaundice
<haematology> Haemolytic jaundice is a type of jaundice, where the skin takes on a yellowish hue, which occurs when red blood cells have been destroyed (by haemolysis). ... (09 Oct 1997) ...

haemolytic plaque assay
<investigation> A haemolytic plaque assay is a lab technique used to show that certain antibodies are secreted by antibody-making cells when these cells are mixed with red blood cells. ... The mixture is spread onto a plate of agar, if a plaque appears, it means that the red blood cells have been destroyed (by haemolysis) by the antibodies. …

haemolytic splenomegaly
Splenomegaly associated with congenital haemolytic jaundice. ... (05 Mar 2000) ...

haemolytic streptococci
Synonym for beta-haemolytic streptococci ... Those that produce active haemolysins (O and S) which cause a zone of clear haemolysis on the blood agar medium in the area of the colony; beta-haemolytic streptococci are divided into groups (A to O) on the basis of cell wall C carbohydrate (see Lancefield classification); Group A (in the strains pathoge …

haemolytic system
<haematology> A haemolytic system is composed of red blood cells covered with antibodies which are genetically identical to the surface proteins (antigens) of the red blood cells. ... It is used to measure how much complement is left after a round of complement fixation. ... (09 Oct 1997) ...

haemolytic unit
The smallest quantity (highest dilution) of inactivated immune serum (haemolysin) that will sensitise the standard suspension of erythrocytes so that the standard complement will cause complete haemolysis. ... Synonym: amboceptor unit. ... (05 Mar 2000) ...

haemolytic uraemic syndrome
<haematology, syndrome> A pathologic condition with involves the rupture (haemolysis) of red blood cells, subsequent anaemia, low platelet count and kidney failure. ... It is a syndrome of haemolytic anaemia, thrombocytopenia, and acute renal failure, with pathological finding of thrombotic microangiopathy in kidney and renal cortical necrosis …

haemolyzation
The production or occurrence of haemolysis. ... (05 Mar 2000) ...

haemolyze
To produce haemolysis or liberation of the haemoglobin from red blood cells. ... (05 Mar 2000) ...

haemomanometer
haemadynamometer ...

haemomediastinum
Blood in the mediastinum. ... (05 Mar 2000) ...

haemometer
haemadynamometer ...

haemometra
Synonym for haematometra ... <gynaecology> A collection of blood and other menstrual fluid within the uterus which causes the uterus to distend (bulge outward). ... (09 Oct 1997) ...

haemometry
Synonym for haematometry ... Examination of the blood in order to determine any or all of the following: 1) the total number, types, and relative proportions of various blood cells; 2) the number or proportion of other formed elements; 3) the percentage of haemoglobin. In some instances, haematometry is used to include a determination of blood press …

haemomonochorial placenta
<obstetrics> A haemomonochorial placenta is a type of haemochorial placenta (placenta where the chorion, or membrane enclosing the foetus, comes in direct contact with the mother's blood) where a single layer of trophoblast tissue separates the mother's blood from the blood capillaries of the foetus. ... (09 Oct 1997) ...

haemonchiasis
Infection with nematodes of the genus haemonchus, characterised by digestive abnormalities and anaemia similar to that from hookworm infestation. ... (12 Dec 1998) ...

haemonchosis
Infection of sheep or other ruminants with the nematode Haemonchus contortus. ... (05 Mar 2000) ...

haemonchus
A genus of parasitic nematode worms which infest the duodenum and stomach of domestic and wild herbivores, which ingest it with the grasses they eat. Infestation of man is accidental. ... (12 Dec 1998) ...

haemonectin
<protein> A 60 kD protein found in the bone marrow matrix of mice specifically aiding adhesion of granulocyte lineage cells. ... (18 Nov 1997) ...

haemonephrosis
An obsolete term for blood in the pelvis of the kidney. ... Origin: haemo-+ G. Nephros, kidney ... (05 Mar 2000) ...

haemoparasite
<microbiology> A haemoparasite is a parasite that lives within its (animal) hosts bloodstream. ... (09 Oct 1997) ...

haemopathology
<study> Haemopathology is the scientific study of blood diseases. ... Origin: Gr. Pathos = disease ... (09 Oct 1997) ...

haemopathy
<haematology> Any disease of the blood. ... Origin: Gr. Pathos = disease ... (18 Nov 1997) ...

haemoperfusion
<physiology> The act of pouring over or through, especially the passage of blood through the vessels of a specific organ. ... (18 Nov 1997) ...

haemopericardium
<cardiology> A collection of blood in the pericardial sac surrounding the heart. ... (27 Sep 1997) ...

haemoperitoneum
An effusion of blood in the peritoneal cavity. ... (12 Dec 1998) ...

haemopexin
<protein> Single chain haem binding plasma _1 glycoprotein (57 kD) unlike haptoglobin does not bind haemoglobin. ... Present at around 1mg/ml in plasma. Responsible for transporting haem groups to the liver for breakdown. Structurally related to vitronectin and some collagenases. ... (18 Nov 1997) ...

haemophagia
Synonym: haematophagia. ... Origin: haemo-+ G. Phagein, to eat ... (05 Mar 2000) ...

haemophagocyte
<haematology> A phagocyte which destroys blood cells. ... (16 Dec 1997) ...

haemophagocytosis
The process of engulfment (and usually destruction) of blood cells by the various types of phagocytic cells; used especially with reference to the engulfment of erythrocytes and others of the erythroid series. ... (05 Mar 2000) ...

haemophil
<microbiology> A microorganism growing preferably in media containing blood. ... Origin: haemo-+ G. Philos, fond ... (05 Mar 2000) ...

haemophilia
<disease, haematology> A haemorrhagic diathesis occurring in two main forms: ... 1. Haemophilia A (classic haemophilia, factor VIII deficiency), an X linked disorder due to deficiency of coagulation factor VIII. ... 2. Haemophilia B (factor IX deficiency, Christmas disease), also X linked, due to deficiency of coagulation factor IX. ... Both for …

haemophilia A
<haematology> A sex-linked genetic disease affecting males that results from a deficiency of clotting factor VIII, a protein factor that is required for normal blood coagulation. ... Symptoms include easy bruising, bleeding gums, nosebleeds and bleeding into muscle tissue (haematoma) or a joint space (haemarthrosis). ... Treatment includes the …

haemophilia B
<haematology> A form of haemophilia in males that results from a deficiency of clotting factor IX, transmitted as a X-linked trait. ... Symptoms include easy bruising, nosebleeds, bleeding gums and bleeding into muscle tissue (haematoma) or a joint space (haemarthrosis). ... Treatment includes the infusion of factor IX concentrates to normalize …

haemophiliac
<haematology> A patient afflicted with a sex-linked genetic disease affecting males that results from a deficiency of a specific protein factor that is required for normal blood coagulation. ... See: haemophilia A and haemophilia B. ... (27 Sep 1997) ...

haemophilic
Relating to haemophilia. ... (05 Mar 2000) ...

haemophilic arthritis
<orthopaedics, rheumatology> Joint disease resulting from haemophilic bleeding into a joint. ... (05 Mar 2000) ...

haemophilic bacteria
<microbiology> Haemophilic bacteria are bacteria which thrive in the presence of blood. ... These bacteria all belong to the taxonomic genera of Haemophilus, Bordetella, and Moraxella. They are rod-shaped, gram-negative, nonmotile parasites. ... (09 Oct 1997) ...

haemophilic joint
<orthopaedics> Chronic arthroplasty due to repeated haemarthrosis in a haemophiliac. ... (05 Mar 2000) ...

haemophilioid
<haematology> Haemophilioid refers to any disease which resembles haemophilia but is not the sole result of abnormal blood clotting. These diseases can be inherited or acquired. ... (09 Oct 1997) ...

haemophilosis
<microbiology> Any disease caused by bacteria of the genus Haemophilus. ... (05 Mar 2000) ...

haemophilus
<bacteria> A genus of pasteurellaceae that consists of several species occurring in animals and humans. Its organisms are described as gram-negative, facultatively anaerobic, coccobacillus or rod-shaped, and nonmotile. ... (12 Dec 1998) ...

Haemophilus actinomycetemcomitans
Synonym for actinobacillus actinomycetemcomitans ... A species of gram-negative, facultatively anaerobic spherical or rod-shaped bacteria that associates with species of actinomyces in actinomycotic lesions. ... (12 Dec 1998) ...

Haemophilus aegypticus
<bacteria> A species that causes acute or subacute infectious conjunctivitis in warm climates. ... (05 Mar 2000) ...

Haemophilus aphrophilus
<bacteria> A species found in the blood and, rarely, on the heart valve as a cause of endocarditis. ... (05 Mar 2000) ...

haemophilus ducreyi
<bacteria> A species of haemophilus that appears to be the pathogen or causative agent of the sexually transmitted disease, chancroid. ... (12 Dec 1998) ...

Haemophilus gallinarum
<bacteria> Former name for Haemophilus paragallinarum. ... (05 Mar 2000) ...

Haemophilus haemoglobinophilus
<bacteria> A species which occurs in large numbers in preputial secretions of dogs. ... (05 Mar 2000) ...

Haemophilus haemolyticus
<bacteria> A species which is usually nonpathogenic but which, on rare occasions, causes subacute endocarditis. ... (05 Mar 2000) ...

haemophilus infections
<microbiology> Infections with bacteria of the genus haemophilus. ... (12 Dec 1998) ...

Haemophilus influenza
<bacteria> A gram-negative bacteria that is a common cause for epiglottitis, meningitis, conjunctivitis, sepsis and respiratory infections. ... Haemophilus influenza type b is a gram-negative bacteria that is responsible for a significant percentage of bacterial sepsis (blood-borne infection) cases in infants under 4 months of age (pneumonia, …

Haemophilus influenza b vaccine
<virology> A vaccination that is given to infants to protect against infection with haemophilus influenza b, an important cause of neonatal sepsis. ... Typically administered at 2, 4, 6 and 15 months. Children who are aged 15 months to 5 years, who have not received the vaccine, should be given a single injection of haemophilus b conjugate vac …

Haemophilus influenza meningitis
<disease> A form of meningitis caused by the bacterium haemophilus influenza. ... Inflammation of the membranes (meninges) covering the brain and spinal cord can result after infection with this organism. Influenza meningitis occurs most frequently in children under 5 years old. Onset may be sudden or occur more slowly after an upper respirato …

Haemophilus influenzae
<bacteria> Bacterium sometimes associated with influenza virus infections, causes pneumonia and meningitis. ... (18 Nov 1997) ...

haemophilus influenzae type b
The majority of type b isolates are from biotype I. The organism can cause life-threatening meningitis, primarily in children 6-12 months of age. Children with underlying disease or immunodeficiency are also at high risk for infection. A vaccine is available and recommended for children under 5 years of age. ... (12 Dec 1998) ...

Haemophilus paragallinarum
<bacteria> A species that causes infectious coryza in chickens and other birds. ... (05 Mar 2000) ...

Haemophilus parahaemolyticus
<bacteria> A species found in the upper respiratory tract and associated frequently with pharyngitis; occasionally causes subacute endocarditis. ... (05 Mar 2000) ...

Haemophilus parainfluenzae
<bacteria> A species which is usually nonpathogenic but which occasionally causes subacute endocarditis. ... (05 Mar 2000) ...

Haemophilus parasuis
<bacteria> A species causing Glasser's disease in pigs. ... (05 Mar 2000) ...

Haemophilus somnus
<bacteria> A species causing thromboembolic meningoencephalitis in cattle. ... (05 Mar 2000) ...

Haemophilus suis
<bacteria> A species, related to Haemophilus influenzae, found in swine and associated with influenza virus in the pneumonia of swine influenza. ... (05 Mar 2000) ...

haemophilus vaccines
Vaccines or candidate vaccines containing antigenic polysaccharides from haemophilus influenzae and designed to prevent infection. The vaccine can contain the polysaccharides alone or more frequently polysaccharides conjugated to carrier molecules. It is also seen as a combined vaccine with diphtheria-tetanus-pertussis vaccine. ... (12 Dec 1998) ...

haemophobia
<psychology> Morbid fear of blood or of bleeding. ... Origin: haemo-+ G. Phobos, fear ... (05 Mar 2000) ...

haemophoresis
Blood convection or irrigation of tissues. ... Origin: haemo-+ G. Phoreo, to bear ... (05 Mar 2000) ...

haemophthalmia
A blood-filled eye. ... Synonym: haematopsia, haemophthalmus. ... Origin: haemo-+ G. Ophthalmos, eye ... (05 Mar 2000) ...

haemophthisis
<haematology> Anaemia resulting from abnormal degeneration or destruction, or a deficiency in the formation of red blood cells. ... Origin: haemo-+ G. Phthisis, a wasting away ... (05 Mar 2000) ...

haemoplasty
<haematology> Formation or elaboration of blood by the haemopoietic tissues. ... Origin: haemo-+ G. Plasso, to form ... (05 Mar 2000) ...

haemopneumopericardium
The occurrence of blood and air in the pericardium. ... Synonym: pneumohemopericardium. ... Origin: haemo-+ G. Pneuma, air, + pericardium ... (05 Mar 2000) ...

haemopneumothorax
<chest medicine> Accumulation of air and blood in the pleural cavity. ... (12 Dec 1998) ...

haemopoiesis
<haematology> The formation and development of blood cells involving both proliferation and differentiation from stem cells. In adult mammals usually occurs in bone marrow. ... (18 Nov 1997) ...

haemopoietic
<pharmacology> Refers to an agent or process that affects or promotes the formation of blood cells. ... (09 Oct 1997) ...

haemopoietic stem cell
<haematology> Cell that gives rise to distinct daughter cells, one a replica of the stem cell, one a cell that will further proliferate and differentiate into a mature blood cell. ... Pluripotent stem cells can give rise to all lineages, committed stem cells (derived from the pluripotent stem cell) only to some. ... (18 Nov 1997) ...

haemopoietic tissue
<haematology> A reticulated tissue which produces blood. An example of such a tissue is bone marrow. ... (09 Oct 1997) ...

haemopoietin
<growth factor> A glycoprotein (protein with a sugar attached to it) produced by the kidneys which stimulates the making of new red blood cells. ... (09 Oct 1997) ...

haemoporphyrin
Synonym for haematoporphyrin ... <protein> A type of artificial porphyrin which forms when sulphuric acid is added to haemoglobin in vitro. It has the chemical formula of C34H38N4O6 and is not found naturally. ... (09 Oct 1997) ...

haemoprecipitin
An antibody that combines with and precipitates soluble antigenic material from erythrocytes. ... (05 Mar 2000) ...

haemoprotein
Protein linked to a metal-porphyrin compound (e.g., cytochromes, myoglobin, catalase). ... (05 Mar 2000) ...

Haemoproteus
A genus of sporozoa (suborder Haemosporina) parasitic in birds and reptiles, combined with Leucocytozoon, Hepatocystis, and other genera in the family Haemoproteidae. Schizogony occurs in endothelial cells of blood vessels, especially in the lungs of the host, while halter-shaped gametocytes are found in the red blood cells. Infection is transmitte …

haemoptysis
<symptom> The expectoration of blood or of blood stained sputum. ... Origin: Gr. Ptyein = to spit ... (18 Nov 1997) ...

haemopyelectasia
Dilation of the pelvis of the kidney with blood and urine. ... Origin: haemo-+ pyelectasia ... (05 Mar 2000) ...

haemorepellant
1. A substance or surface that discourages the adherence of blood. ... 2. Having such an action. ... (05 Mar 2000) ...

haemorheology
The scientific study of the deformation and flow properties of cellular and plasmatic components of blood in macroscopic, microscopic, and submicroscopic dimensions, and the rheological properties of vessel structure with which the blood comes in direct contact. ... (12 Dec 1998) ...

haemorrhachis
Synonym for haematorrhachis ... A spinal haemorrhage. ... Synonym: haemorrhachis. ... Origin: haemato-+ G. Rhachis, spine ... Haematorrhachis externa, haemorrhage into the spinal canal external to the cord, either within or outside the dura. ... Synonym: extradural haematorrhachis, subdural haematorrhachis. ... (05 Mar 2000) ...

haemorrhage
<physiology> The escape of blood from the vessels, bleeding. ... Small haemorrhages are classified according to size as petechiae (very small), purpura (up to 1 cm) and ecchymoses (larger). The massive accumulation of blood within a tissue is called a haematoma. ... Origin: Gr. Rhegnynai = to burst forth ... (18 Nov 1997) ...

haemorrhage per rhexis
Haemorrhage due to the rupture of a blood vessel. ... (05 Mar 2000) ...

haemorrhagic
<haematology> Relating to bleeding and haemorrhage. ... (09 Oct 1997) ...

haemorrhagic anaemia
Anaemia resulting directly from loss of blood. ... (05 Mar 2000) ...

haemorrhagic ascites
Bloody or blood-stained serous fluid, frequently resulting from metastatic carcinoma, in the peritoneal cavity. ... (05 Mar 2000) ...

haemorrhagic bacteraemia
Any of several diseases usually caused by pasteurella multocida, marked by the presence of haemorrhagic areas in the subcutaneous tissues, serous membranes, muscles, lymph glands, and throughout the internal organs. ... (12 Dec 1998) ...

haemorrhagic brain metastases
<radiology> Intratumoural haemorrhage most likely to be high-density, well circumscribed mass, melanoma, thyroid carcinoma, renal carcinoma, choriocarcinoma ... (12 Dec 1998) ...