The haemoglobin concentration and the total surface area of erythrocytes in the unit of blood volume decreased with similar intensity with the increase of body mass in 23 species of studied birds, weighing from 6 g to 170 g. Hence the amount of Hb per unit of the erythrocyte surface did not depend on the body mass of birds. Species of a greater body mass had smaller total surface area of erythrocytes in 1 mm³ of blood, as they had a smaller number of larger red blood cells. The changes in number and size of erythrocytes with the increase of the body mass occurred in such a way that, as a result, the value of haematocrit remained statistically the same in the studied birds.
Авторы исследовали реакцией агглютинации сыворотки 1687 голов здорового крупного рогатого скота, применяя антиген изготовленный из штаммов Listeria monocytogenes № 1, 2, 3, 4а и 4b (Seeliger). Исследование дало отрицательный результат у 98,18%, сомнительный — у 1,6% и положительный (1 :160 — 1 : 320) у 0,22% исследуемых животных При исследовании у тех же коров сывороток крови и молока авторы установили немного меньший титр сыворотки молока.
TPP enhanced the ability of nonactivated human mononuclear leucocytes (MNC) derived from the blood of young and aged donors, patients with coronary artery disease and patients with oral candidiasis, to induce neovascularization in the local graft versus host (GvH) reaction (H-LIA assay), diminished high activity of lymphocytes from rheumatoid artritic patients, but not influence the response of MNC of diabetic patients with proliferative retinopathy. Various fractions of mononuclear leucocytes were grafted intradermally into immunosuppressed (with cyclophosphamide) Balb/c mice. Recipients were then treated with PTT or saline. After 3 days the local GvH reaction was evaluated as the mean number of newly formed blood vessels surrounding the cell graft sites. CD4+ and CD8+ theophylline sensitive Fcy+ lymphocytes and monocytes responded to PTT by significant enhancement of their angiogenic activity.