No abstract available.
Humans ; Male* ; Nervous System*

Although platelet have been implicated in the pathogenesis of the thrombotic disease, the platelet aggregability was not well studied in Korea. Author measured platelet aggregability in 103 clinical cases including 30 healthy volunteers to evaluate the platelet function and the effect of Aspirin and Dipyridamole on aggregability in Korean. 24 patients with cerebral thrombosis, 24 patients with ischemic heart disease and 25 patients with hypercholesterolemia were included for this study. Aggregation tests were performed at three final concentrations of epinephrine(10microM/L) and ADP(4 microM/L, 10 microM/L) with platelet aggregometer which was made by Chrono-Log Corp. in all cases. Platelet aggregations were measured in patients who were treated with Aspirin, Dipyridamole and combined treatment of Aspirin and Dipyridamole respectively. The following results were obtained. 1) The mean maximal platelet aggregability in the normal subjects induced by 10 microM/L epinephrine was 59.3+/-24.26%, 66.6+/-14.00% in Bm and 62.5+/-19.30% in B5 in induction by 4 microM/L ADP, and 77.2+/-8.99% in Bm and 76.6+/-9.83% in B5 in induction by 10microM/L ADP. 2) The mean maximal platelet aggregability in patients with cerebral thrombosis induced by 10 microM/L epinephrine was 89.2+/-7.33%, 78.8+/-9.41% in Bm and 78.5+/-9.93% in B5 in induction by 4 microM/L ADP, and 86.4+/-7.69% in Bm and B5 in induction by 10 microM/L ADP. The results showed significantly elevated platelet aggergability than that of normal subjects(p<0.01). 3) The mean maximal platelet aggregability in patients with ischemic heart disease induced by 10 microM/L epinephrine was 88.1+/-11.99%, 78.2+/-12.50% in Bm and B5 in induction by 10 microM/L ADP. The results showed significantly elevated platelet aggregability than that of normal subjects(P<0.01). 4) The mean maximal platelet aggregability in patients with hypercholesterolemia induced by 10 microM/L epinephrine was 86.8+/-15.99%, 82.7+/-11.19% in Bm and 82.0+/-12.87% in B5 in induction by 4 microM/L ADP, and 88.5+/-11.47% in Bm and B5 in induction by 10 microM/L ADP. The results showed signifcantly elevated platelet aggregability than that of normal subjects(P<0.01). 5) The mean maximal platelet aggregability in patients with thrombotic disease was studied by Dipyridamole administration. The platelet aggregability induced by epinephrine before administration was 90.9+/- 8.52% and after administration it was 78.9+/-15.68%, and the results showed that Dipyidamole lowered aggregability significantly. The platelet aggregability induced by 4 microM/L ADP before administration was 84.0+/-11.90% in Bm and B5 and after administration it was 78.0+/-11.44% in Bm and B5, and the results showed that Dipyridamole lowered aggregability but not significant. The platelet aggregability induced by 10 microM/L ADP before administration was 89.2+/-10.39% in Bm and B5 and after administration it was 80.5+/-8.44% in Bm and B5, and the results showed that Dipyridamole lowered aggregability significantly. 6) The mean maximal platelet aggregability in patients with thrombotic disease was studied by Aspirin administration. The platelet aggregability induced by epinephrine before administration was 91.0+/-4.79% and after administration it was 47.6+/-17.72%. The platelet aggregability induced by 4 microM/L ADP before administration was 84.6+/-10.37% in Bm and B5 and after administration it was 72.6+/-11.85% in Bm and 65.3+/-15.97% in B5. The platelet aggregability induced by 10 microM/L ADP before administration was 84.9+/-6.30% in Bm and B5 and after adminstration it was 77.7+/-8.60% in Bm and 75.0+/-8.89%. The results showed that Aspirin lowered aggregability markedly. 7) The mean maximal platelet aggregability in patients with thrombotic disease was studied by combined administration of Aspirin and Dipyridamole. The platelet aggregability induced by epinephrine before administration was 86.7+/-13.77% and after administration it was 36.7+/-14.01%. The platelet aggregability induced by 4 microM/L ADP before administration was 81.5+/-12.93% in Bm and 80.6+/-14.15% in B5 amd after administration it was 54.7+/-17.27% in Bm and 44.6+/-21.17% in B5. The platelet aggregability induced by 10 microM/L ADP before administration was 87.8+/-10.11% in Bm and B5 and after administration it was 65.7+/-13.59% in Bm and 62.0+/-16.42% in B5. The results showed that combined administration of Aspirin and Dipyridamole lowered aggregability significantly and the results were lower than that of normal subjects. 8) The effects of combined treatment of Aspirin and Dipyridamole showed marked reduction of platelet aggregability than that of single treatment of Aspirin or Dipyridamole in thrombotic disease.
Adenosine Diphosphate ; Aspirin* ; Blood Platelets* ; Dipyridamole* ; Epinephrine ; Healthy Volunteers ; Humans ; Hypercholesterolemia* ; Intracranial Thrombosis ; Korea ; Myocardial Ischemia

No abstract available.

No abstract available.
Erectile Dysfunction* ; Male

No abstract available.

No abstract available.
Animals ; Male ; Penile Erection* ; Rats* ; Saponins*

To investigate role of autonomic nerves on penile erection and to further characterize the laboratory rat as animal model of penile erection, this experiment was performed by means of monitoring intracavernosal pressure following nerve stimulation in 46 rats. The results obtained were summarized as follows: Increased intracavernosal pressure as well as erection was observed following electrical stimulation( 1-10 volt, 0.5-5 Hz) on each autonomic nerve, although the hypogastric nerve required higher intensity of electrical stimuli than the parasympathetic nerve (pelvic or cavervnous nerve) to induce erectile response. Combined stimulation of the pelvic nerve and the hypogastric nerve resulted in synergistic increase of intracavernosal pressure. These results indicate the hypogastric nerve may have a potential role in mediation of penile tumescence as the parasympathetic(pelvic or cavernous) nerve and that this rat model would contribute to the further study of penile erection.
Animals ; Autonomic Nervous System ; Autonomic Pathways* ; Male ; Models, Animal ; Negotiating ; Penile Erection* ; Rats*

During the period of Sep. 1981 to Feb. 1983, a program of measuring the blood gases and pH of 19 varicocele patients was taken. These patients were classified into 2 groups based upon their semen analysis; Group A consisted of 9 patients who demonstrated normal findings and group B consisted of 10 patients who demonstrated seminal stress pattern. The blood pH, PO
Anoxia ; Depression ; Gases* ; Humans ; Hydrogen-Ion Concentration* ; Male* ; Oxygen ; Semen Analysis ; Varicocele* ; Veins*

From October 1981 to August 1982, a program of plasma gonadotropin (FSH & LH) and testosterone measurement was undertaken in 33 cases of prepubertal cryptorchid boys. Radioimmunoassay resulted in the following findings. 1. The mean values of each FSH, LH and testosterone in unilateral prepubertal cryptorchid boys did not show a correlation with chronologic age. 2. There were no differences in the value of FSH and LH between unilateral cryptorchid boys and Canadian healthy boys, except for a decrement in cryptorchid boys in age group from 6 to 8 and from 8 to 10. No differences in the values of testosterone through the whole age group were observed. It seems to be indicated that the study of histopathology of the testis and of pituitary hormones especially via the stimulation test is helpful for further evaluation of pathogenesis of cryptorchidism in hormonal approach.
Cryptorchidism ; Gonadotropins* ; Humans ; Male ; Pituitary Hormones ; Plasma ; Radioimmunoassay ; Testis ; Testosterone*

Nocturnal penile tumescence has been proposed as a source of objective data in the evaluation of erectile capacity and clinically important in differentiating between psychogenic and organic impotence. However, the absence of sleep information and difficult differentiation of movement artifact leads to false positive or false negative reaction when portable home monitor is used. This can be overcome by polysomnographic monitoring. In addition, sleep disorders affecting nocturnal penile tumescence also could be screened. Herein, we conducted a study to investigate the significance of polysomnographic nocturnal penile tumescence monitoring in 45 men with erectile dysfunction. The nocturnal penile tumescence data from polysomnographic method were compared with those from portable method, based on the results from standard method. The results obtained were summarized 1. Polysomnographic method showed higher sensitivity(82%), lower false positive(20%) and false negative rate(16%) than portable method (71%, 30%, 28%, respectively) in the differential diagnosis of impotence. 2. Among 10 patients, with measuring of air flow monitoring and anterior tibialis EMG one patient had periodic leg movement. 3. Statistically, parameters of total REM time, total tumescence time/total sleep time, number of maximum tumescence episodes, amount of maximum tumescence episodes, T-up and T-max phase in maximum tumescence episodes, circumferential changes in maximum tumescence episodes, and rigidity in maximum tumescence episodes were found to be significantly decreased in organic impotence group. These results reflect that polysomnographic NPTM provides more validity than portable NPTM on the outcome of the differential diagnosis of impotence, and it would contribute to screening of occult sleep disorders and to study for their characteristics in association with impotence.
Artifacts ; Diagnosis* ; Diagnosis, Differential ; Erectile Dysfunction* ; False Negative Reactions ; Humans ; Leg ; Male ; Mass Screening ; Penile Erection* ; Sleep Wake Disorders