ABSTRACT
The incidence of bleeding during and after child birth has become an issue of concern in maternal health. Prothrombin time and activated partial thromboplastin time in antenatal women in the three trimesters were studied in Southern Nigeria. 120 subjects were recruited for the study, consisting of 30 pregnant women each at first, second and third trimesters and 30 non pregnant women as the control. The tests were carried out using standard techniques. The result of the PT showed no statistically significant (P>0.05) difference in the first and third trimesters except in the second trimester (P<0.05). Activated partial thromboplastin time increased significantly in all the trimesters when compared with the control group. A decrease in coagulation factors of the intrinsic pathway could be responsible for the prolonged APTT in all the trimesters.
ABSTRACT
The objective of the study was to determine the best fixative for tissue sections, which were to be stained with the dye extracts oí Morinda lucida, a stain for collagen fibres and muscle fibres. The effects of 10 percent formalin saline, Carnoy's fluid, Zenker's fluid, Helly's fluid and Bouin's fluid on the staining ability of the dye extracted from Morinda lucida on tissue sections were studied. Human tissues were fixed in the afore mentioned fixatives and the sections stained with acidified alcoholic solution of Morinda lucida extract. No visible difference in the staining reactions was observed when the stained slides from the different fixatives were compared. The colour, staining time and staining intensity were the same in all the sections studied.
El objetivo del estudio fue determinar el mejor fijador para secciones de tejidos, los cuales fueron teñidos con el extracto de Morinda lucida, una tinción para fibras colágenas y musculares. Fueron estudiados los efectos de formalina salina al 10 por ciento, líquido de Carnoy, líquido de Zenker, líquido de Helly y líquido de Bouin en la capacidad de tinción de los extractos de Morinda lucida sobre los tejidos. Fueron fijados tejidos humanos en los fijadores antes mencionados y las secciones teñidas con solución alcohólica acidificada de extracto de Morinda lucida. No se observaron diferencias visibles en las tinciones cuando fueron comparadas con los diferentes fijadores. El color, tiempo de tinción e intensidad de tinción fueron iguales en todas las secciones estudiadas.