OBJECTIVES: Chromosomal anomalies are common disease entity among genetic diseases. But there are scanty reports about the status of chromosomal abnormalities in Korean. In addition, the comprehensive multi-center study of chromosomal abnormalities in Korean has never been performed. METHODS: We have collected 1,793 cases (394 abortuses; 198 chorionic villi; 1,060 amniotic fluid cells; 141 fetal blood), which showed abnormal karyotype results from twenty three cytogenetic centers in Korea from the year of 1977 to 1999. RESULTS: In abortuses, numerical chromosomal abnormalities was 85%, and structural abnormalities was 13% and the most frequent anomaly was trisomy 16. In chorionic villi, numerical anomaly was 60.0% and structural anomaly was 31.3% and the most frequent karyotype was Down syndrome. In amniotic fluid cells, structural anomaly exceeded the number of numerical anomaly and the most frequent anomaly was Down syndrome. In fetal blood, numerical anomaly was 63.8% and the most frequent karyotype was trisomy 18 (23.4%) CONCLUSIONS: This may be the first comprehensive and multi-center study in Korea. The proportion of the abnormal karyotypes in each specimens was different from each other. Based on this study, the more comprehensive study should be performed to all the Korean population.
Abnormal Karyotype ; Amniotic Fluid ; Chorion* ; Chorionic Villi* ; Chromosome Aberrations ; Cytogenetics ; Down Syndrome ; Female ; Fetal Blood* ; Karyotype ; Korea ; Trisomy

No abstract available.
Risk Factors*

No abstract available.
Anemia, Hemolytic* ; Child* ; Humans

No abstract available.
Contrast Media* ; Glass* ; Syringes*

No abstract available.
Female ; Humans ; Pregnancy ; Pregnancy Trimester, Second* ; Pregnancy*

BACKGROUND: CD34 is a 115 kD glycoprotein which is expressed on hematopoietic progenitor cells. It is also known as an immunohistochemical marker of endothelial cells. OBJECTIVE: This study was designed to investigate the patterns of CD34 expression on: (1) cutaneous benign and malignant vascular tumors and (2) on the mature and immature vessels of pyogenic grauloma and capillary hemangioma. METHOD: We performed immunoperoxidase staining using a monoclonal anti-CD34 antibody (QBEND/10) on formalin fixed, paraffin-embedded sections of 23 benign and malignant cutaneous vascular tumors. RESULTS: The results are summerized as follows: 1. In 3 cases of nevus flammeus and 6 cases of carvernous hemangioma, vascular endothelial cells of all hemangiomas showed CD34 expressions. In 5 cases of angiokeratoma, endothelial cells of hemangioma, did not express CD34. 2. In all 5 cases of pyogenic granulomas and one case of capillary hemangioma, endothelial cells of mature vessels, endothelial cells near the well-formed lumina and endothelial cells showing intracellular lumina showed strong positivity for CD34, wbile endothelial cells far from the lumina and endothelial cells without lumina formation mostly showed negative staining for CD34. 3. One cese of Kaposis sarcoma showed focall positivity for CD34 both in endothelial cells of the small, well-formed vessels and spindle cells. Two cases of angiosarcoma showed CD34 expression only in endothelial cells of well-formed, normal appearing vessels, whereas atypical endothelial cells of tumor vessels and spindle cells were negative for CD34. CONCLUSION: CD34 could be a marker for endothelium in mature, well-differentiated vascular structures and may serve as a marker of lumen formation or differentiation of endothelial cells.
Angiokeratoma ; Endothelial Cells ; Endothelium ; Formaldehyde ; Glycoproteins ; Granuloma, Pyogenic ; Hemangioma ; Hemangioma, Capillary ; Hemangiosarcoma ; Hematopoietic Stem Cells ; Negative Staining ; Port-Wine Stain ; Sarcoma, Kaposi

In man the epiglottis is a thin lamella of yellow elastic cartilage. The upper part is free and is known asleaf and lower part participates in the formation of the anterior wall of the vestibule of the larynx. Theipithelial covering extends forwards onto the base of the tongue over the medial glossoepiglottic folds. The sidesof epiglottis are connected with the cartilages of Wrisberg and arytenoid cartilage by the aryepiglottic fold. Inview of these anatomical complexities, the function and physiology of the epiglottis have been debated sinceMagendi(1815), who proposed the theory that the epiglottis acts as a flap valve to prevent food entering thewindpipe, and who found that he could remove the free part of the epiglottis in dog without spoiling the dog.Follwoing the introduction of laryngoscopy(Garcia, 1815; Liston, 1840; Czermark, 1861) and modern cineradiographicequipments in 1950's, the anatomy and physiology of epiglottis has become much clearrer. Age as it is seen on thelateral x-ray of the neck. In the present study we have made an attempt to systematically analyze aging changes ofthe epiglottis in the lateral x-ray of the neck in 245 healthy adults. The age ranged from 16 to 65 years old.Based on our observation the epiglottis was classified into type A, B, and C according to their curvatures. Thus,type A represented those with posterior curvature, type B those with straight epiglottis and type C anteriorcurvature. Type C was sudivided into I, II and III according to the degree of curvature. Thus, type C-I, C-II andC-III represented mild, moderated and marked anterior curvature, respectively. Type A epiglottis was found in thesecond, third and fourth decades and type C-III in the older age group. Type A was least comon and type C mostprevalent. It seems that the epiglottis inclines anteriorly with backward curvature with age (p<0.0001).
Adult ; Aging ; Animals ; Arytenoid Cartilage ; Cartilage ; Dogs ; Elastic Cartilage ; Epiglottis ; Humans ; Larynx ; Neck ; Physiology ; Tongue

Epinephrine ; Pulmonary Edema

OBJECTIVE: We have attempted to identify prognostic factors regarding CC/hMG ovarian stimulation and IUI in infertility and to seek factors valuable in planning infertility treatment and predicting the success rate of IUI therapy in individual couples. METHODS: The variables selected for initial analysis were female age, duration of infertility, type and diagnosis of infertility, number of pre-ovulatory follicles (>or=16 mm, >or=18 mm follicles), thickness of the endometrium, number of the treatment cycles, result of semen analysis, ovarian stimulation protocol, number of IUI. A logistic regression method was used to identify significant variables that contribute to the success of CC/hMG/IUI treatment. RESULTS: Logistic regression analysis revealed four predictive variables as regards pregnancy: duration of infertility (p=0.011), infertility etiology (p=0.049), number of IUI (p=0.004), method of ovarian stimulation (p=0.042). A cause of infertility, especially ovarian dysfunction other than tubal factor, a shorter duration of infertility (<6 years) and CC/hMG minimal ovarian stimulation protocol with double IUI resulted in better treatment success in CC/hMG with IUI cycles. CONCLUSION: We concluded that careful patient selection criteria coupled with successful ovarian stimulation and increased sperm count in female reproductive tract is the model for CC/hMG/IUI sucess.
Diagnosis ; Endometrium ; Family Characteristics ; Female ; Humans ; Infertility ; Insemination* ; Logistic Models ; Ovulation Induction* ; Patient Selection ; Pregnancy ; Semen Analysis ; Sperm Count

Serum HBsAg, AntiHBs, HBeAg, AntiHBe, and AntiHBc were detected by radioimmunoassay in 39 patients with acute viral hepatitis, 79 patients with chronic hepatitis, 30 patients with liver cirrhosis, 16 patients with primary hepatocellular carcinoma, 14 patients of HBsAg carriers and 129 cases of controls: 78 cases of normal level of SGOT, SGPT, and 51 cases of elevated level of SGOT, SGPT. Following results were obtained: 1. HBsAg was detected in 66.7% of acute viral hepatitis, 63.3% of chronic hepatitis, 36.7% of liver cirrhosis, 81.3% of primary hepatocellular carcinoma and 27.1% of controls. 2. AntiHBs was positive in 0% of acute viral hepatitis, 21.5% of chronic hepatitis, 36.7% of liver cirrhosis, 31.3% of primary hepatocellular carcinoma, 0% of carrier and 44.2% of controls. 3. HBeAg was detected in 45.6% of chronic hepatitis, 23.3% of liver cirrhosis and 31.3% of primary hepatocellular carcinoma. 4. Among chronic liver diseases, antiHBe was positive in 56.3% of primary hepatocellular carcinoma, 23.3% of liver cirrhosis and 20.3% of chronic hepatitis. 5. AntiHBc was detected in most of all examinees and the significance of presence of AntiHBc does not seem to represent liver disease itself but the evidence of infection of HBV. 6. Among 14 HBV carriers, 6 cases presented with abnormal SGOT, SGPT. 7. All HBV markers were negative in 5.1% of acute viral hepatitis, 5.1% of chronic hepatitis and 14.7% of controls: 17.6% of subjects with abnormal SGOT, SGPT and 12.8% of subjects with normal SGOT, SGPT. 8. Beside of HBV, other causes, such as non A, non B virus, Delta-agent, other viruses or related factors should be excluded among the patients with evidence of HBV infection associated with elevation of SGOT & SGPT.
Alanine Transaminase ; Aspartate Aminotransferases ; Carcinoma, Hepatocellular ; Clinical Study* ; Hepatitis ; Hepatitis B e Antigens ; Hepatitis B Surface Antigens ; Hepatitis, Chronic ; Herpesvirus 1, Cercopithecine ; Humans ; Liver Cirrhosis ; Liver Diseases* ; Liver* ; Radioimmunoassay