In the study with experimental animals in vitro conditions, the aim of the research was to examine the effect of verapamil on the even brawniness of the isolated organ of the respiratory ways (tracheas) in guinea-pigs on acetylcholine and histamine, and in that way, to examine local mechanisms of smooth muscle system but also to exclude the rest of the neurohumoral influences. The guinea-pigs of both sexes (average weight of 500-700 gr), were used for this experiment. 10 guinea-pigs were included in the experimental research; the trachea was taken from them after the immolation. The preparations of isolated organs of trachea were divided into two groups (A and B). The previous incubation of trachea -5 isolated by verapamil (1 minute) in concentration 10 M significantly reduced the contraction caused by acetylcholine -4 (ascent 21.49±9.63, r=0.97, p<0.05). Concentration of verapamil 10 M also caused significant fall of contraction (ascent -5 21.3±12.63, r=0.95, p<0.05). Verapamil in concentration 10 M significantly reduces the response of isolated trachea cau- -6 -5 -4 sed by histamine in concentrations 10 M and 10 M (slope 21.3±10.6, r=0.96, p<0.05).Concentration of verapamil 10 M significantly reduced the contraction of smooth muscles of isolated trachea caused by histamine (slope 15.46±10.47, r= 0.94, p < 0.05).

Transition of xenobiotics from blood into brain tissue is limited by the blood-brain barrier (BBB), a very selective functional barrier that excludes penetration of various substances, while allowing essential nutrients to enter into CNS. Transport of drugs through the intact BBB depends of their physico-chemical characteristics, the way of drug application and of anatomical and functional integrity of the barrier. The aim of this work was to examine penetration of quinine and lysinacetylsalicilate in vivo through the rat BBB, after the intraarterial injection via the a. axillaris in the course to CNS. The
experiment was done on anaesthetized Wistar rats, body weight 200-300 g. Test animals received injection of quinine (25 mg/kg) or LAS (90 mg/kg). Blood from the left jugular vein and brain samples (brain stem, cerebellum, right and left cerebral hemispheres) were taken in four minutes period. Quinine concentrations in rat brain were higher than in blood (ratio between blood/brain concentration was <1) while LAS concentrations in blood were permanently higher, according to their liposolubility. Maximal concentration in the brain tissue of both drugs are time dependent which indicated the useness of an active transport

The purpose of this study was to evaluate the effect of aspirin and ticlopidine, administered alone and in combination, on liver function parameters. The experiment was conducted on white laboratory rats, type Wistar. Thirty-two rats were divided in four groups and they recived one of the following treatments for 4 days: group I, control, saline (1 ml/kg, i.p.); group II, aspirin (50 mg/kg/day i.p.); group III, ticlopidine (125 mg/kg/day i.p.) and group IV, aspirin+ticlopidine combination (50 mg/kg/day+125 mg/kg/day i.p.). After the treatment the animals were anaesthetised with ether and blood for further analyses was taken by cardiopunction. The total cholesterol serum level was significantly increased only in ticlopidine group in comparison to control (p<0.01).Also, the serum activity of alkaline phosphatase and total bilirubin concentration were significantly elevated only in ticlopidine treated group (p<0.001). Serum AST and ALT activities were not significantly elevated in all treating groups. On basis of the obtained results it can be noticed that the values of liver function parameters are greater in group treated with ticlopidine than in group treated with ticlopidine and aspirin combination.

Scientific research of effects of glucagon on the cardiovascular system have shown that glucagon has some
cardiostimulatory potential. The very interesting fact is that glucagon shows its cardiostimulatory effects by activating its
own, higly specific glucagonic receptors. That is way we wanted to research not only the effects of glucagon on the C.V.S.
but also its effects during the depression of the C.V.S. with high dosses of beta blocators (presolol) expecting a good
hemodinamic response. The experiment has been performed on two groups of 6 dogs. The first group of animal was treated
with i.v. bolus injections of glucagon and other group with presolol (15 mg/kg b.w.) i.v., and after that with i.v. bolus
injection of glucagon. Hemodinamic variables (mean arterial pressure, central venal pressure and hearth frequency) were
registred at the 1-st, 2-nd, 3-rd, 10-th, 20-th, 30-th and 40-th minute. The hearth frequency was registred by continous
monitoring, mean arterial pressure was registred with cateter in the arterial femoralis, while the central venal pressure was
registred over central venal cateter in v. femoralis. After the i.v. bolus injection glukagon shows higly positive effects,
followed by short-term increase of the mean arterial pressure, while the c.v.p. considerably falls. During the administration
of presolol the hearth frequency and mean arterial pressure fall considerably and progressively, while the c.v.p. rises
considerably. Glucagon, in conditions of c.v.s. depresion by high doses of presolol (15 mg /kg b.w.) considerably increases
hearth frequency and mean arterial pressure, while the c.v.p. falls considerably.

With this work we intended to examine antipyretical effect of different extracts from the leaf. The following extracts were examined: etherical chloroformic The experiments were conducted on white laboratory mice, type BALB/C. Mice were divided in 5 groups, where each group received the appropriate extract. Rectal temperature was measured by "Termistorowy" termometer. After the temperatures were measured, for each of examined group we defined area under the curve. The area values were later used to determine statistically significant differences between them. Examination results of antipyretic effects of different extracts ( ) from the leaf, i parsley (Et O), (CHCl ), ethyl-acetic (EtOAC), n-bhutanolic (nBuOH), aquae- 2 3 ous (H O). 2 etherical (Et O), chloroformic (CHCl ), ethyl-acetic (EtOAC), n-bhutanolic (nBuOH), aquaeous (H O) parsley 2 3 2 n experiment with mice, show that all the extracts mentioned above, decreased (annuled) pyrogenic effect of 12% yeast suspension.