BLOOD COAGULATION IN ARTHROPODS. III. REACTIONS OF INSECT HEMOLYMPH TO COAGULATION INHIBITORS OF VERTEBRATE BLOOD

Blood coagulation in arthropods. II. Phase contrast microscopic observations on hemolymph coagulation in sixty-one species of insects.

II i-lAS BEEN SI-1O\VN elsewheu’e (Gn’ goin’e aunt! Florkins,#{176} r ) that tine type of hemolymph ot)agulatiOns ins tine house -n’icket (Gryilulus (lomesticus) anod inn tise Sti(’k inssect (Cai’ausiris inorosiis), as stuttied by pinase o’ountrast microscopy, simO)iVs tO si rikinsg ausalogy siitin tine pn’ooess of o’oagulations tlestrii)ed inn cn’usta(’eanl blood, espe(’ially ivitin type (1 of...

Immune Reactions and Blood Coagulation

The prominence of thrombosis in the pathogenesis of the Arthns phenomenon (1, 2), the alterations in the clotting mechanism seen in experimental anaphylaxis (3), and the occurrence of "fibrinoid" in lesions generally considered to be due to hypersensit ivity suggest tha t the interaction of antigen and antibody in vivo may in some manner init iate coagulation. Experiments to be reported here in...

Blood Coagulation

INTRODUCTION This section covers the means, as far as we now know them, by which components of the blood plasma produce an insoluble protein meshwork, or gel, at a site of blood-vessel damage. The plasma is normally completely fluid, containing all its proteins in soluble form. When the clotting system is activated at a site of blood-vessel damage, a series of proteolytic reactions is set going...

Step-by-step evolution of vertebrate blood coagulation.

The availability of whole-genome sequences for a variety of vertebrates is making it possible to reconstruct the step-by-step evolution of complex phenomena such as blood coagulation, an event that in mammals involves the interplay of more than two dozen genetically encoded factors. Gene inventories for different organisms are revealing when during vertebrate evolution certain factors first mad...

Changes in blood coagulation.