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Hematopoiesis↗
Biomedical subjects
B Jaksić
Publications and source records attributed to B Jaksić.
[Analysis of the use of blood and blood components at the Dr. O. Novosel Internal Medicine Clinic in Zagreb].
The use of blood and components was analysed during the period of two years in the Dept. of Med. "O. Novosel", Med. Fak. of Zagreb. The blood use factors were compared with those from other hospitals and hospital staff's transfusion practice was judged by them. The use of blood was higher than in the compared hospitals due to the extremly high use in the Dept. of Haematology. This department is highly specialised with predominancy of patients with haematologycal malignancies. The blood factors of other departaments compare well with these from other hospitals. Blood component therapy in an accepted principle and is fully practiced. 77% of all transfusons were given as PRC. Difficulity in management of haemotherapy is clearly seen by the fact that only 72% of reqested doses were supplied by Blood Transfusion Service. For each Rhesus positive received dose of blood it was neccessary to order 1,4 doses and for each A Rhesus negative dose, 2 doses. The worst situation was with B and AB Rhesus negative blood. For one received dose it was neccessary to order 2.9 and 2,8 doses respectively. Similar situation was with blood components. Only 64% of requested platelet concentrates and less than 42% of granulocyte concentrates were obtained. The shortage of blood and blood components is a serious hindrance to the optimal treatment of patients.
Blood Transfusion↗
Acute graft-versus-host reaction in mice. I. Cellular events.
Cellular events in the spleen during the development of acute GvH reaction in lethally irradiated recipients of allogeneic lymphocytes may be divided into 6 interrelated processes: (1) entering and lodging in the spleen of about 17% of inoculated cells which forms the compartment of potentially reactive cells; (2) transformation (recruitment) of about 30% of cells lodged in the spleen into large pyroninophilic cells (LPC), a process lasting about 12-16 hr; (3) proliferation of recruited LPC by five successive divisions with a Tc of about 12 hr; (4) transformation of LPC into non-LPC; (5) proliferation of non-LPC by one division, with a Tc of about 8 hr; and (6) migration of mature immunologically active cells from the spleen. The last process correlates well with the concomitant appearance of lymphocytes in the peripheral blood (killer cells) and with the time of acute death among inoculated mice.
Animals↗