autoagglutination

[aw″to-ah-gloo″tĭ-na´shun]

1. clumping or agglutination of an individual's cells by his own serum (containing autoantibody), as in autohemagglutination. Autoagglutination occurring at low temperatures is called cold agglutination.

2. nonspecific clumping or agglutination of particulate antigens that does not involve antibody.

au·to·ag·glu·ti·na·tion

(aw'to-ă-glū'ti-nā'shŭn),

1. Nonspecific agglutination or clumping together of cells (for example, bacteria, erythrocytes) caused by physical or chemical factors.

2. The agglutination of erythrocytes by a specific autoantibody present in one's own serum.

autoagglutination

/au·to·ag·glu·ti·na·tion/ (aw″to-ah-gloo″tĭ-na´shun)

1. clumping or agglutination of an individual's cells by his own serum, as in autohemagglutination.

2. agglutination of particulate antigens, e.g., bacteria, that does not involve antibody.

autoagglutination

[-əglo̅o̅′tənā′shən]

Etymology: Gk, autos, self; L, agglutinare, to glue

1 also called autohemagglutination. The clumping of red blood cells caused by an individual's own serum.

2 the clumping of certain antigens or antigen-bearing cells, such as bacteria.

Autoagglutination

autoagglutination

The aggregation of red blood cells in a person’s own serum, often caused by a cold-reacting antibody, as seen in cold agglutinin disease or other autoimmune haemolytic anaemias.

autoagglutination

Hematology The aggregation of RBCs, often caused by a cold-reacting antibody, as seen in cold agglutinin disease or other autoimmune hemolytic anemias.

au·to·ag·glu·ti·na·tion

(aw'to-ă-glū'ti-nā'shŭn)

1. Nonspecific agglutination or clumping together of cells (e.g., bacteria, erythrocytes) due to physical-chemical factors.

2. The agglutination of red blood cells by specific autoantibody present in one's own serum.

autoagglutination

The spontaneous clumping together of red blood cells. This is a feature of the AUTOIMMUNE DISEASE haemolytic anaemia

autoagglutination

1. clumping or agglutination of an individual's cells by its own serum, usually because of the presence of autoantibodies, as in autohemagglutination. Autoagglutination occurring at low temperatures is called cold agglutination.

2. agglutination of particulate antigens, e.g. bacteria, in the absence of specific antibodies.

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References in periodicals archive ?

Saline controls were included to detect autoagglutination.

Characterization of toxigenic Vibrio cholerae from Haiti, 2010-2011

Moreover, autoagglutination on the peripheral blood film, which disappears on warming the blood sample, suggests a cold antibody.

Mycoplasma pneumoniae associated with severe autoimmune hemolytic anemia: case report and literature review

canis tend to aggregate even in the absence of specific antibodies, a less mucoid variant termed M-, which does not produce autoagglutination is used for serologic diagnosis (3).

Human infection with M- strain of Brucella canis

Some colonies of the O153:H- EHEC strain isolated from the first outbreak of HUS in DB rabbits (6) and a strain of unknown O serotype that showed autoagglutination were sorbitol negative like most O157:H7 EHEC organisms isolated from humans.

The rabbit as a new reservoir host of enterohemorrhagic Escherichia coli

We observed four distinct patterns of adherence: LA occurred when the bacteria attached to localized areas of the HEp-2 cells in culture, forming distinct microcolonies after 3 h of incubation; DA occurred when bacteria adhered to the entire surface of the HEp-2 cells without formation of discrete microcolonies; AA was distinguished by prominent autoagglutination of the bacterial cells to each other on the surface of the cells, as well as those of glass or plastic containers; and LAL pattern, observed only in strains incubated for 6 h, was characterized by the formation of microcolonies or clusters less dense and compact than those displayed by typical LA-positive strains.

HEp-2-adherent Escherichia coli strains associated with acute infantile diarrhea, Sao Paulo, Brazil. (Dispatches)