There is considerable experimental evidence to indicate that tumor growth is dependent on angiogenesis. However, we do not understand how the angiogenic activity is initiated by a given tumor. There is a clear distinction between a stage without neovascularization, which correlates with a paucity of metastases, and a stage in which increasing neovascularization correlates with a rising rate of metastasis. The authors therefore asked whether the extent of angiogenesis in human prostatic carcinoma is correlated with the tumor grades or some growth factors. To investigate how tumor angiogenesis correlates with tumor aggressiveness, the authors counted microvessels within the various grades of invasive prostatic carcinomas of 44 patients and the nodular hyperplasias of 10 patients. Highlighting of the vessels by immunohistochemical staining for factor VIII-related antigen and assessment of the tumor aggressiveness by the degree of expression of some growth factors(transforming growth factor-alpha, and beta, epidermal growth factor), tumor necrosis factor-alpha and tumor grading(Gleason's score) were done. As a result, both microvessel counts and the expression of growth factors and tumor necrosis factor correlated with tumor grades. In conclusion, the number of microvessels per 200 X fields in the areas of most intense neovascularization in a prostatic carcinoma may be a predictor of the patient's prognosis. Therefore, assessment of tumor angiogenesis may prove valuable in selecting patients with prostatic carcinoma, especially small needle biopsy, for aggressive therapy.
Humans ; Tumor Necrosis Factor-alpha

PURPOSE: Prolonged fetal hypoxia stimulates erythropoiesis in fetal life and induces increased nucleated erythrocytes(NRBC) counts at the early newborn period. To evaluate the relationship between prolonged fetal hypoxia and neonatal intraventricular hemorrhage (IVH), and the prediction of neonatal IVH by neonatal NRBC. METHODS: We compared the daily courses of the absolute NRBC count in preterm new- boms at 34 weeks' gestation or earlier with(n=17) and without(n=20) IVH for 7 days of life. RESULTS: Absolute NRBC counts at birth were higher in neonates with IVH than in control neonates(2,499/mm3+/-3,748 and 412/mm3+/-272, respectively, P=0.0022). The cut-off value of 1,000/mm3 for absolute NRBC counts at birth showed the best parameter estimate of the predictive model for IVH at early newborn period with 100% of positive predictive value and 74.1% of negative predictive value. CONCLUSION: Prolonged fetal hypoxia inducing fetal erythropoiesis near labor is closely related to IVH at early newborn period. Thabsolute NRBC counts at birth is the very important predictable marker for the condition.
Erythroblasts* ; Erythropoiesis ; Fetal Hypoxia ; Hemorrhage* ; Humans ; Infant, Newborn* ; Parturition ; Pregnancy

The paratertiary butylphenol formaldehyde resin (PTBP-FR) is commonly used as a shoe adhesives because it sticks rapidly, is durable and pliable, and maintains good bond strength at raised temperature. We report two cases of allergic contact dermatitis due to PTBP-FR-containing shoes. Two women visited our department because of the skin rash on their .
Adhesives ; Dermatitis, Allergic Contact* ; Exanthema ; Female ; Formaldehyde* ; Humans ; Shoes*

In situ hybridization (ISH) is a standard method for localizing DNA or RNA sequences in tissue or cell preperation. The technique was developed at the electron-microscopic level, and enables the precise subcellular localization. A method was developed for detection of specific viral DNA. We have tested various methods and technique to detect specific viral DNA through ISH at the electron microscopic level. Postembedding method of ultrastructural ISH was developed and successfully applied for the detection of human papillomavirus type 16 in squamous cell carcinoma of the uterine cervix and Epstein-Barr virus in EBV-infected leukemia cell line. The following results are made. The best results were obtained using 0.2% glutaraldehyde and 4% paraformaldehyde fixed tissue or cell block. The labelling was best observed on Unicryl resin and Lowicryl K4M resin sections. Epon sections showed no reactivity. Thin sections of Unicryl resin were more easier than Lowicryl K4M resin. Enzymatic predigestion with proteinase K, pepsin and trypsind gave good results. However, high concentration of these produce poor results due to excessive destruction of the cellular components. Alkali treatment with 0.5N sodium hydroxide produced successful results in denaturation of target DNA. The labelling density of gold particles was independent of incubation time or temperature in hybridization step. The viral DNA labelling was localized mainly within the nucleus, both within and at the edge of electron dense regions, and below the nuclear membrane. And the labelling was seen in the form of a dense, roughly spherical shape. In conclusion, the best results are obtained by the conditions that tissue fixed by 0.2% glutaraldehyde and 4% paraformaldehyde solution, embedded with Unicryl resin, protein denaturation by 0.1ul/ml proteinase K, DNA denaturation by 0.5N sodium hydroxide, and reaction with DNA probe.
Humans

No abstract available.
Yersinia enterocolitica* ; Yersinia*

OBJECTIVE: The purpose of this study is to investigate the effect of chronic deprivation of estradiol on the serotonin level in Sprague-Dawley rat's cerebral cortex and hippocampus. METHODS: One hundred of female Sprague-Dawley rats were taken care for seven to eight weeks, then they were randomly assigned into two group; fifty rats underwent bilateral oophorectomy & the remaining rats were the control group. Six months after oophorectomy, brain tissue was extracted from cerebral cortex and hippocampus and then homogenated: this was done in the both groups. The upper layer of the homogenated substance was taken and frozen and finally dried up. The next process was marking with PITC, quantification through HPLC and comparing with authentic serotonin. Protein quantity was measured by using Bradford method. RESULTS: Comparison between the bilateral oophorectomy group and the control group for serotonin content in the cerebral cortex was 134.2+/-14.3 nmol/mg protein(mean+/-SEM) and 122.5+/-11.6 nmol/mg protein in each group. As for the serotonin content in the hippocampus was 148.8+/-13.9 nmol/mg protein and 132.9+/-13.7 nmol/mg protein in each group. It shows that, there was no significant difference in the serotonin level, in the two areas mentioned above. CONCLUSION: The effect of estradiol on the serotonin level may be dependent on the hormonal change duration. Chronic effect of hypoestrogenism might have no effect on tryptophan hydroxylase and monoamine oxidase, thus not changin the serotonin level. These data supported the previous findings that chronic hypoestrogenism had no effect on serotonin level.
Animals ; Brain ; Cerebral Cortex* ; Chromatography, High Pressure Liquid ; Estradiol ; Female ; Female* ; Hippocampus* ; Humans ; Monoamine Oxidase ; Ovariectomy* ; Rats* ; Rats, Sprague-Dawley* ; Serotonin* ; Tryptophan Hydroxylase

No abstract available.
Vulva*

The cystic lesions within the knee joint are rare, contrary to those located around the knee. They usually are eniscal or ganglion cyst, reported in association with the joint capsule of the knee or the menisci and close to the peroneal tendons. The intraarticular ganglion cyst arising from the cruciate ligaments are rare and cause pain, effusion and limitation of the knee joint. We report (he case of a patient with right knee joint pain caused hy an intraarticular ganglion cyst arising from the posterior cruciate ligament with review of reference.
Ganglion Cysts* ; Humans ; Joint Capsule ; Knee ; Knee Joint ; Ligaments ; Posterior Cruciate Ligament* ; Tendons

The etiology of spontaneous hemarthrosis of the knee joint in elderly pattents is still unknown. This report discusses seven spontaneous hernarthroses, three that were managed witla conservative measures such as aspiration, rest and knee immobilization because of poor general condition and four in which arthroscopic evaluation and treatment were performed. These patients were elderly indi.viduals without an obvious history of trauma. The roentgenograms of each involved knee demonstrated degenerative osteoarthritic changes of knee joint. Arthroscopic examination revealed denuded articular cartilage and subchondral bone exposure in four operative cases and degenerative meniscal tear in one case of four. These patients underwent mthroscopic debridement and did not experience recurrenees of the hemarthrosis. We think that the origin of the bleeding was most likely from the subchondral cancellous bone which was exposed due to degenerative change of the knee joint and the senile changes of the vessels around the knee joint with aging process may contribute the spontaneous bleeding into the knee joints.
Aged* ; Aging ; Cartilage, Articular ; Debridement ; Hemarthrosis* ; Hemorrhage ; Humans ; Immobilization ; Knee Joint ; Knee*

No abstract available.
Knee*