The nucleolus of human cell is a morphologically well recognizable nuclear organelle and the argyrophilic NORs (AgNORs) are nucleic acid-argyrophilic nonhistone protein complex in the nucleoli and the silver staining allows their identification and enumeration at the light microscopic level. The AgNOR counts are in parallel with mitotic activity and vary in different phase of cell cycle. It has been reported that human cells have one AgNOR during interphase and S-phase. However, the correlation between the number of AgNORs and S-phase markers is still controversial and they have never been studied simultaneously. In this study, AgNOR and PCNA were stained simultaneously to find out the relationship of AgNOR counts with cell cycle (S-phase) in human palatine tonsil, gastric carcinoma, liver and brain tissues. S-phase cells (PCNA-positive) were found predominantly in lymphoid follicles in palatine tonsil but gastric carcinoma showed diffuse immunoreactivity for PCNA. The AgNOR counts varied according to the type and locus of tissue. More than one AgNOR were identified in S-phase cells and some of hepatocytes and neurons in the brain which were not in S-phase contained two or more AgNORs. The above results suggest that the number of AgNOR is a characteristic feature of each type of cells and can be more than one even in S-phase.
Brain ; Cell Cycle ; Hepatocytes ; Humans* ; Interphase ; Liver ; Neurons ; Organelles ; Palatine Tonsil ; Proliferating Cell Nuclear Antigen ; Silver Staining

No abstract available.
Amenorrhea* ; Cytogenetics* ; Female

No abstract available.
Amenorrhea* ; Cytogenetics* ; Female

Macroglossia can cause dentomusculoskeletal deformities, instability of orthodontic and orthognathic surgical treatment, and create masticatory, speech and airway management problems. To determine whether a reduction glossectomy is necessary, it will important to identify the signs and symptoms of macroglossia. Development of dentoskeletal changes directly related with tongue size, such as an anterior open bite or a Angle Class III malocclusion tendency, would indicate that reduction glossectomy may be beneficial. For reduction glossectomy, several techniques have been reported. However, in most techniques the tip of tongue is removed. So its excision causes the loss of most mobile and sensitive portion of the tongue, and creates ankylosed, globular tongue. To avoid such problems, central tongue reduction technique have been proposed. This article will introduce central tongue reduction for anterior openbite case associated with macroglossia.
Airway Management ; Congenital Abnormalities ; Glossectomy ; Macroglossia* ; Malocclusion ; Malocclusion, Angle Class III ; Open Bite ; Tongue*

BACKGROUND: The 5α-reductase inhibitor finasteride blocks the conversion of testosterone to dihydrotestosterone(DHT), the androgen responsible for androgen- etic alopecia in genetically predisposed men. OBJECTIVE: The purpose of this study was to determine the efficacy of finaster- ide treatment according to the type of androgenetic alopecia in Korea. METHODS: 196 patients with finasteride(1.25mg/day) were registered in this study and 68 patients were followed over 8 months. Efficacy was evaluated by globa1 photographs, investigator assessment of clinical change,and patients' self assessment via self administered hair growth questionnaire. RESULTS: Patients' self-assessment demonstrated that finasteride treatment slowed hair loss, increased hair growth, and improved appearance of hair. These improvements were corroborated by objective assessments after 4 months of treatment. Adverse effects such as sexual dysfunction were minimal. CONCLUSION: Oral finasteride 1.25mg/day slowed the progression of hair loss and increased hair growth in clinical tria1s of men with androgenetic alopecia over 8 months. With its generally good tolerability profile, finasteride is a new approach to the management of this condition, for which treatment options are few.
Alopecia* ; Finasteride* ; Hair ; Humans ; Korea ; Male ; Research Personnel ; Self-Assessment ; Testosterone

Gastric lesion in familial polyposis coli is commonly presented with fundic gland hyperplastic polyps, but duodenal and gastric adenomas together with their carcinomatous transformation have been rarely described in familial polyposis coli mostly by case reports. We present three cases of gastric adenomas in familial polyposis coli with one in synchronous development of gastric adenocarcinoma in Korea. All three cases had the family history related to familial polyosis coli and received proctocolectomy because of synchronous development of colonic adenocarcinoma. One patient developed gastric polyposis and adenocarcinoma 8 years after colectomy, and the remaining two presented with multiple polyps either in the stomach or duodenum synchronously at the time of the diagnosis of familial polyposis coli with colonic adenocarcinoma. None disclosed any evidence of Gardner's syndrome. We conclude that association of gastric adenomas in familial oplyposis coli is not uncommon and gastric adenoma-carcinoma sequence is an another important participating mechanism to understand the histogenesis of gastric carcinoma in Korea.
Adenocarcinoma ; Adenoma

The concurrence of typical carcinoid admixed with adenocarcinoma of the gastrointestinal tract is a well known but unusual phenomenom that has been reported in the esophagus, stomach, gall bladder, colon and appendix. The amine precursor uptake and decarboxylation (APUD) concept included the idea that neuroendocrine cells of the gastrointestinal tract were dervied from the neural crest by a process of migration during embryogenesis. However the intimate admixture of cells which have morphologic and immunocytochemical properties of both carcinoid tumors and adenocarcinoma suggests that these tumors are derived from a multipotential stem cell showing bidirectional differentiation rather than from unrelated cell lines. The term composite carcinoma-carcinoid tumor is therefore an appropriate designation for these neoplasms. We report a case of composite carcinoma-carcinoid tumor of the stomach in a 38 year-old female with brief review of literature.
Female ; Humans ; Adenocarcinoma

BACKGROUND: Combined spinal epidural anesthesia (CSE) is used for obtaining adventages of both spinal and epidural anesthesia. But it might be suspected that epidural volume load affect spinal sensory blockade level during CSE. METHODS: Eighty patients undergoing lower abdominal and lower extremity operation were involved in our study. Subarachnoid block with 12mg of tetracaine was established in all patients. Four groups were studied. Group 1 (n=20), the control, received only spinal anesthesia. Group 2 (n=20), group 3 (n=20) and group 4 (n=20) received 10, 15 and 20 ml of epidural saline immediately after spinal anesthetic administration. Sensory blockade level was checked by pinprick test at 5, 10, 15, 20, 25, 30, 40, 60 and 90 minutes. Blood pressure, heart rate and incidence of complications such as hypotension, bradycardia, nausea and high block were measured. RESULTS: The sensory blockade level of groups 3 and 4 was higher than group 1 (p<0.05). Blood pressure and heart rate were not different compared with each other. The incidence of complications, except that higher block above T4 in group 4 was more than in group 1 (p<0.05), were not different when compared with each other. CONCLUSIONS: Epidural saline above 15 ml may affect sensory blockade level of spinal anesthesia during CSE.
Anesthesia, Epidural* ; Anesthesia, Spinal ; Blood Pressure ; Bradycardia ; Heart Rate ; Humans ; Hypotension ; Incidence ; Lower Extremity ; Nausea ; Tetracaine

No abstract available.
Embryonic Structures* ; Humans* ; Somites*

No abstract available.
Chorea* ; Humans