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Biomedical subjects

K Laake

Publications and source records attributed to K Laake.

At least 91 records · Page 5Linked to original sources

Low incidence of thrombocytopenia during treatment with hog mucosa and beef lung heparin.

129 patients with thrombosis were treated with heparin for 5 d and followed with platelet counts and coagulation examinations. Of 77 patients treated with 2 different brands of hog mucosa heparin, only 1 developed persistent thrombocytopenia below 100 X 10(9)/1. Of 52 patients treated with beef lung heparin, 1 patient developed thrombocytopenia. No patient developed intravascular coagulation or activated fibrinolysis during heparin treatment.

Aged↗

A study of the variable heavy chain (VH) region of membrane-bound Ig on human chronic leukemic lymphocytes.

Lymphocytes from 20 patients with chronic lymphocytic leukemia (CLL) were studied for membrane staining by direct immunofluorescence by employing anti-F(ab')2, anti-VHI, anti-VHII, anti-VHIII subgroup-specific antisera, as well as light chain-specific antisera. Some lymphocyte preparations were also studied in indirect immunofluorescence with an antiserum raised against a fragment (VH) corresponding to the variable region of the heavy chain of a human IgG3 myeloma protein (Kup). Lymphocytes from each CLL patient demonstrated a restriction of VH subgroups expressed on the cell membrane; six were restricted to the VHI subgroup, seven to VHII, and seven to the VHIII subgroup. This restriction gave further evidence for monoclonality of the membrane-bound Ig and the leukemic cell proliferation. Antiserum to the VH fragment stained closely similar percentages of CLL lymphocytes to that obtained with anti-F(ab')2 antiserum. Furthermore, double staining revealed that the same cells were stained with anti-VH antiserum as were stained with anti-F(ab')2 antiserum, i.e., only the B lymphocytes.

Adult↗