No abstract available.
Pancytopenia* ; Pneumonia*

Epithelial cadherin (E-cadherin) is a Ca2+ -dependent cell-cell adhesion molecule that connects cells via homotypic interactions. Its function is critical in the induction and maintenance of cell polarity and differentiation, and its loss is associated with an invasive and poorly differentiated phenotype in a wide range of tumors. Formalin-fixed, paraffin-embedded tissue sections from 36 cases of cervical intraepithelial neoplasia (CIN) and 14 cervical squamous cell carcinomas were investigated for the expression of E-cadherin immunohistochemically. While E-cadherin expression was usually restricted on the cell membrane of basal and parabasal cells in normal cervix, the presence of cytoplasmic E-cadherin was found to be associated with its grade in CIN lesions. Also, marked cytoplasmic staining was commonly revealed in poorly differentiated ones than well-differentiated squamous cell carcinomas. More intense reactivity of cytoplasmic E-cadherin was frequently seen in the foci of invasion than adjacent carcinoma in situ, and in its periphery than the center of tumor islands. In addition, DNA ploidy and S-phase fraction of squamous cell carcinomas were analyzed and compared with those of CIN lesion. We found that invasive squamous cell carcinomas more frequently disclosed DNA aneuploidy than CIN lesions, and there was correlation between cytoplasmic E-cadherin expression and DNA aneuploidy. Also, cytoplasmic E-cadherin-reactive cervical neoplasms had a higher rate of cell proliferation than that of membranous E-cadherin-reactive cases. These data suggest that the increased cytoplasmic E-cadherin expression may represent one of the abnormalities underlying the loss of polarity and invasiveness of cancer cells, and the abnormal E-cadherin expression combined with/without DNA ploidy or S-phase fraction may serve as a prognostic indicator.
Aneuploidy ; Cadherins* ; Carcinoma in Situ ; Carcinoma, Squamous Cell* ; Cell Membrane ; Cell Polarity ; Cell Proliferation ; Cervical Intraepithelial Neoplasia ; Cervix Uteri* ; Cytoplasm ; DNA* ; Female ; Islands ; Phenotype ; Ploidies* ; Uterine Cervical Neoplasms

PURPOSE: The purpose of this study was 1) analyze the current state of Sanhojoriwon; and 2) to suggest the new model for the community based mother infants health care delivery system: strategies of TMIC are related to Public Health policy, cost-effectiveness, mother infant care provision of medical professionalism, and so on. METHOD: Forty-seven workers from seventeen Sanhojoriwon participated to analyze several aspects of Sanhojoriwon. Using a questionnaire developed at Korean Sanhojori Research Forum (KSARF), such as the traditional and medical concept of the Sanhojori, postpartum care, Korean traditional postpartum care, job description on women and infant care at Sanhojoriwon, professional management, health care policy and the educational need. RESULTS: Based on the descriptive study results, the TMIC, the community based transitional mother infants care center was suggested as a new model for the cyclic public health care system related on the reproductive health, using an already existing related center, Sanhojoriwon. Also, several strategies were presented on the TMIC.
Delivery of Health Care ; Female ; Humans ; Infant ; Infant Care* ; Infant* ; Infant, Newborn ; Job Description ; Mothers* ; Postnatal Care ; Public Health ; Surveys and Questionnaires ; Reproductive Health ; Women's Health

OBJECT: This study was carried out to investigate the effect of pentoxifylline on in vitro fertillization and developmen of preimplantation stage of mouse embryos. MATERIAL AND METHODS:F1 hybrid mice was superovulated with PMSG/hCG and mouse oocytes were recruited. After the normal sperms were incubated with PTX before in vitro fertilization, it was observed whether the fertilization and embryo development was affected or not by the sperm preparation(washing, dilution and no washing or no dilution). And after 1-cell and 2-cell stage of mouse embryos were incubated with PTX, the development to hatching blastocyst was also observed. RESULTS: When in vitro fertilization was revealed by using the washed normal sperms after 0, 3.6 and 7.2 mM PTX incubation, the fertilization rates were 92.5%, 48.8%, 36.8%, respectively. So 3.6 and 7.2 mM groups presented significantly low fertilizatin rate, but the development rates were 93.9%, 85.0%, 95.2%, respectively. Therefore, there were no significant difference between each group. When in vitro fertilization was revealed by using the diluted normal sperms after 0, 3.6, and 7.2 mM PTX incubation, the fertilization rates were 58.6%, 5.4%, 9.4%, respectively. So 3.6 and 7.2 mM groups presented significantly low fertilization rate. The developmental rates were 88.2%, 100%, 100%. And there were no significant difference between each group. When in vitro fertilization was revealed by using the not washed and not diluted normal sperms after 0, 3.6 and 7.2 mM PTX incubation, the fertilizatin rates were 61.2%, 5.7%, 3.8%, respectively. 3.6 and 7.2 mM group presented significantly low fertilization rate. The development rates were 73.3%, 0%, 0%, respectively. So 3.6, 7.2 mM group presented significantly low developmental rate. After 1-cell stage of mouse embryos were incubated in 0, 5, 10, 50 nM of PTX, the development rates were not significantly different among them. After 2-cell stage of mouse embryos were incubated in 0, 5, 10, 50 nM of PTX, the development rates were not significantly different among them. CONCLUSION: In conclusion, when PTX is used in in vitro fertilization program with normal sperms, it may affect the fertilization and embryo development in high concentration. And if PTX concentration is very low, the developmental rate would not be affected. So PTX must not be used to normal sperms and where use of PTX is indicated, it is recommended that remainder PTX must be removed as completely as possible.
Animals ; Blastocyst ; Embryonic Development ; Embryonic Structures ; Female ; Fertilization ; Fertilization in Vitro* ; Mice* ; Oocytes ; Pentoxifylline* ; Pregnancy ; Spermatozoa*

BACKGROUND: Trisomy 16 in mice is considered to be an animal model for Down's syndrome in human. We studied the morphologic characteristics of the heart and the edema, and their significance to the teratogenesis in this animal model. METHODS: A total of 30 dams were sacrificed to bear 125 (61.9%) normal fetuses 35 (17.3%) abnormal fetuses and 42 (20.8%) resorptions. Cytogenetic study and morphological examination were performed using microdissection agar-mount sectioning histologic examination and scanning electron microscope. RESULTS: The crown-rump length was significantly shorter in abnormal (trisomic fetuses) than the normal (eusomic) fetuses. Trisomic fetuses showed massive edema at the back from the vertex to the lumbar area. Four-chamber view section of the agar-mount and histologic section showed a common atrioventricular valve bridging the left and the right atrioventricular junction. Scanning electron microscopic examination on atrioventricular valves showed three types of atrioventricular valves:five cases with common atrioventricular orifice, three cases with partitioned atrioventricular orifice and two cases with atresia of the right atrioventricular orifice. CONCLUSION: This study confirmed the presence of massive edema and cardiac anomalies in the mouse with trisomy 16. But there was morphologic diversity of cardiac anomaly in this model.
Animals ; Crown-Rump Length ; Cytogenetics ; Down Syndrome ; Edema* ; Endocardial Cushion Defects ; Fetus* ; Heart ; Humans ; Hydrops Fetalis ; Mice ; Microdissection ; Models, Animal ; Pathology* ; Teratogenesis ; Trisomy*

The significance of cervical erosion with benign cellular change on Papanicolaou smear has not been evaluated. A retrospective review of 430 coloscopically directed punch biopsies performed over 15 months revealed 206 cases who had a benign cellular change on cytologic smear. Of these 206 smears, 48(23%) had clear cervix without erosion, 99(48%) had mild erosion on cervix, 41(20%) had moderate cervical erosion and 18(9%) had severe cervical erosion. The false negative rate that revealed more than mild dysplasia on histologic diagnosis was 2% in patients without cervical erosion, 3% in patients with mild cervical erosion, 5 % in patients with moderate cervical erosion, and 11% in patients with severe cervical er- osion. Koilocytotic change that suggested human papilloma virus infection was 17% in each group regardless cervical erosion. In conclusion, benign cellular change on Pap smears in patients with severe cervical erosion may be associated with significant cervical cancer pathology.
Biopsy ; Cervix Uteri ; Diagnosis ; Female ; Humans ; Papanicolaou Test* ; Papilloma ; Pathology ; Retrospective Studies ; Uterine Cervical Neoplasms

PURPOSE: We performed this study to describe the findings of MR Myelography(MRM) of herniated disc disease, spinal stenosis and spinal tumor and to evaluate the usefulness of the MRM in comparison to MRI. MATERIALS AND METHODS: MRI and MRM were performed in 31 patients with herniated disc disease(12 patients), spinal stenosis(11 patients) and spinal tumor(8 patients). MRI and MRM were done with 1.5-T Signa MR, using fat suppressed heavily T2-weighted fast spin echo technique. We retrospectively analyzed MRM images about the thecal sac indentation, compression or displacement of the nerve root, extent and degree of narrowing of spinal canal, relationship between spinal tumor and spinal cord. MRM findings were compared with MRI in all cases. RESULTS: In 18 herniated disc cases of 12 patients, focal filling defect with cutoff or displacement of the nerve root in eight cases of paracentral herniated disc was seen. Cutoff and displacement of the nerve root were more clearly delineated on MRM than rvlRI. In the patients of spinal stenosis(11 cases), hourglass deformity of the thecal sac or complete spinal block of the subarachnoid space was clearly demonstrated. The extent and severity of spinal stenosis were more accurately evaluated on MRM than MRI. MRM finding of intramedullary tumor(3 cases) was enlargement of spinal cord. Five cases of intradural extramedullary tumor showed intradural filling defect, which caused contralateral displacement of the spinal cord with meniscus sign on inferior margin of the mass. CONCLUSION: MRM shows characteristic findings of herniated disc disease, spinal stenosis and spinal tumor. MRM yields excellent definition of the thecal sac, nerve roots and nerve root sleeves in relation to herniated disc and may be more accurate in evaluation of the degree and extent of spinal stenosis than MRI.
Congenital Abnormalities ; Constriction, Pathologic ; Humans ; Intervertebral Disc Displacement ; Magnetic Resonance Imaging ; Myelography* ; Retrospective Studies ; Spinal Canal ; Spinal Cord ; Spinal Diseases ; Spinal Stenosis ; Subarachnoid Space

This is a retrospective study of 161 ovarian neoplasms, all of which were surgically removed and had preoperative sonographic examinations. They were evaluated respect to age, tumor size and its echogenicity. The results were as follows: 1. Of all 161 tumors, physiologic lesions were 67 cases (41.6%), germ cell tumors were 28 cases (17.4%) and serous tumors were 19 cases (11.8%). 2. Of all 161 tumors, right ovarian lesions were 82 cases (50.9%), left were 59 cases (36.7%), and bilateral lesions were 20 cases(12.4%). 3. The most characteristic findings of tumors were as follows: 1) Physiologic tumors were 2-9cm sized (88.1%), anechoice-5% echogenic (79.1%), and developed during 4th & 5th decades (91.0%). 2) Inflammatory tumors were 2-9cm sized (94.1%), 50%-totally echogenic (76.5%), and during 4th & 5th decades (94.1%). 3) Serous tumors were 2-9cm sized (60.3%), anechoic-5% echogenic (89.5%), and during 3rd & 4th decades (84.2%). 4) Mucinous tumors were 5-19 cm sized (77.8%), anechoic-5% echogenic (77.8%), during 2nd-8th decades with diffuse distribution. 5) Endometrioid tumors were 5-14cm sized (100.0%), variable echogenic, and during 3rd & 4th decades (90.9%). 6) Germ cell tumors were 5-14cm sized (75.0%), variable echogenic, during 3rd & 4th decades (82.1%). 7) Parovarian cysts were 2-14cm sized (90.0%), anechoic-5% echogenic (100.0%), with diffuse age distribution. 4. The malignant and borderline malignant tumors were 9 caseswith more than 10cm sized (77.8%), and developed during older than 4th decade (100.0%). Anechoic 3 cases, 1-5% echogenic 2 cases, and totally echogenic 4 cases were found.
Age Distribution ; Female ; Mucins ; Neoplasms, Germ Cell and Embryonal ; Ovarian Neoplasms ; Parovarian Cyst ; Retrospective Studies ; Ultrasonography

No abstract available.
Child* ; Humans

Background: The impact of coronavirus disease 2019 (COVID-19) has profoundly affected education, with most universities changing face-to-face classes to online formats. To adapt to the COVID-19 pandemic situation, we adopted a blended learning approach to anatomy instruction that included online lectures, pre-recorded laboratory dissection videos, and 3D anatomy applications, with condensed offline cadaver dissection. Methods: We aimed to examine the learning outcomes of a newly adopted anatomy educational approach by 1) comparing academic achievement between the blended learning group (the 2020 class, 108 students) and the traditional classroom learning group (the 2019 class, 104 students), and 2) an online questionnaire survey on student preference on the learning method and reasons of preference. Results: The average anatomy examination scores of the 2020 class, who took online lectures and blended dissection laboratories, were significantly higher than those of the 2019 class, who participated in an offline lecture and dissection laboratories. The questionnaire survey revealed that students preferred online lectures over traditional large group lecture-based teaching because it allowed them to acquire increased self-study time, study according to their individual learning styles, and repeatedly review lecture videos. Conclusion This study suggests that a blended learning approach is an effective method for anatomy learning, and the advantage may result from increased self-directed study through online learning.