No abstract available.
Osteochondritis Dissecans* ; Osteochondritis*

Breast cancer is one of the leading causes of death attributable to cancer in women. In view of the limitations of conventional predictable factors of the breast cancer, additional second-generation parameters would be valuable in selecting the patients who would be most likely to be beneficial from adjuvant therapy and breast reconstruction. The author investigated the HER2/neu gene amplification and the number of chromosome 17 in 39 cases of paraffin embedded breast cancer tissues, 20 cases without lymph node metastasis and 19 cases with lymph node metastasis, using fluorescent in situ hybridization(FISH) and compared the results with HER2/neu and p 53 protein expression detected by immunohistochemical method. Eleven cases fibroadenoma were used as benign tumor control. Numerical aberrations of chromosome 17 were found in 17 out 39 breast cancer cases (44%)(monosomy in 10 cases, 26%; trisomy in 3 cases, 8%; tetrasomy in 3 cases, 8%; polysomy in 1 case ,3%), and the frequency of each type aberration was not significantly different between the negative and positive groups in lymph node metastasis. Monosomy of chromosome 17 was found in 2 out of 11(12%) fibroadenoma cases. HER2/neu gene amplification was found in 8 out of 39 cases (19%) and other 2 cases revealed HER2/neu gene amplification in lymph node metastatic tumor only, not in original tumor. Fourteen out of 19 cases of breast cancer with lymph metastasis showed HER2/neu protein expression both in original and metastatic tumors. All of the six cases showing HER2/neu gene amplification in original and/or metastatic tumor revealed HER2/neu protein expression. The frequency of HER2/neu gene amplification in the 39 breast cancer cases was not different between metastatic and non-metastatic groups(p= 0.284). However, HER2/neu protein expression was increased significantly in the metastatic group(p=0.028). None of the 11 fibroadenoma cases revealed HER2/neu gene amplification or HER2/ neu protein expression. Nine out of 19 cases of breast cancer with lymph node metastasis showed p 53 protein accumulation in original tumor(47%), but 3 of them revealed p 53 protein accumulation only in original tumor. The frequency of p 53 protein accumulation was not significantly different between metastatic and non-metastatic groups. None of the 11 fibroadenoma cases revealed p 53 protein accumulation. In conclusion, there are no differences between the lymph node metastatic group and non-metastatic groups in numerical aberrations of the chromosome 17 , amplification of the HER2/neu gene expression and accumulation of the p 53 protein in breast cancer. However, the HER2/neu protein expression was increased significantly in lymph node metastatic group, so it could be one of the predictors of the metastasis in breast cancer.
Breast Neoplasms* ; Breast* ; Cause of Death ; Chromosomes, Human, Pair 17* ; Female ; Fibroadenoma ; Gene Amplification* ; Gene Expression ; Humans ; Lymph Nodes ; Mammaplasty ; Monosomy ; Neoplasm Metastasis ; Paraffin ; Tetrasomy ; Trisomy

In order to understand the role of mec regulator genes in the evolution of methicillin-resistant S. aureus (MRSA), the distribution of the mec regulator genes among the 66 clinical isolates of MRSA was analysed. And also the correlation between gene mutation and degree of phenotypic expression of resistance was studied. Fifty strains carried whole mec regulator region, while the mecI gene and nearly half of the 3'-end of the mecR#l gene were deleted in fifteen strains. The mecRl MS gene was detected among all of the mecA carried strains, but the mecRl PB gene was carried by 77% of the MRSA strains. At least a portion of the 5'-end region of the mecRl gene was carried by all MRSA strains tested. Forty-seven strains were finally confirmed to have mecI gene and each mecI gene of above strains was sequenced for identification of the relationship between repressor function of mecI gene on mecA transcription and MIC level of methicillin. Point mutations were detected in 11 strains of 47 strains. In 8 strains, there was one nucleotide substitution (C to T at position 202) that produced a new termination codon at position 201. In 3 strains, one nucleotide substitution from G to T at position 43 caused an amino acid substitution from Val to Phe. The MIC of methicillin of strains carrying mutated mecI genes ranged 256 ug/ ml to 1024 ug/ml. Transcription level of amplified cDNA corresponding to mecA was determined by the method of RT-PCR of extracted RNA. Total RNA was extracted from two strains with mutated mecI gene and a strain with intact mecI gene. Deletional loss or the mutational inactivation of the mecI gene did not affect the level of mecA transcription. Role of mecI gene as a strong repressor function on mecA gene seemed to be skeptical.
Amino Acid Substitution ; Codon, Terminator ; DNA, Complementary ; Genes, Regulator* ; Methicillin Resistance ; Methicillin* ; Methicillin-Resistant Staphylococcus aureus ; Point Mutation ; RNA

No abstract available.
Frontal Sinus*

Six cases of a rare variant of endocervieal adenocarcinoma (Adenoma maligum, AM) were collected for clinicopethologic analysis. The everage age of six patients was 49.3 years, and their chief com plaints were persis(ent mucid or watery discharge and intermittent vaginal spotting, The clinical im presaion was carcioma of The uterine cervix in faur out, of six cases. All except one were pathologically confirmed by initia1 biupey. two cases by colposcopic biopsies, two by cone biopsies, one by cone biopsy after suggested AM in calposcopic hiopsy. One case was incidentally found from hysterectnmised speeimen, which waas suspected as adennmyosis. On gross examination, the cervix usualty appeared either firm or indurated with thickening af the wall excepl one which was presented es a fungnting mass. The characteristic histologic feetures were ext,ensive arborizing endeervical glands with marked variation in size and shape, and the glands lined by mucin conyaining columnar epithelial cells with basal bland looking nuclei but with occasional cytologic atypia and rare mitose. The nenplasi.ic glands were characterized by deep stronml invasion be yond normal enddcervical glands, assosiated with loose edematous periglandular desmaplastic stromal reaction in moat cases. Immunohistochemical stainnings for carcinoembryonie antigen (CEA) revealed ey- toplasmic positivity in five cases. The clinical stage for all exeept one incidental case were : four Ib and one II b. In three cases, the radical hysterectomy with unilateral salpingooophorectomy plus dissection of bilateral pelvic and paraaortic lymph nodes was performed, and in one case radiotherapy was done prior to radical hysterectomy with bilateral salpingoophorectomy plus the dissection of left pelvic lymph nodes followed by chemotherapy. Total abdominal hysterectomy with bilateral salpingooophorectomy plus Burch's operation followed by radiation therapy was performed in on case. The remaining one case was treated with radiation therapy. Metastasis to the left obturator lymph node was discovered in one case with state IIb, and the patient expired 29 months after the radiotherapy. The remaining five cases are being carefully followed up. From our experience, we conclude that the early diagnosis of AM can be made based on comprehensive analysis concerning the clinical features, histopathological and immunohistochemical findings. The early diagnosis and proper therapy can lead to the better prognosis.
Adenocarcinoma ; Adenoma* ; Biopsy ; Cervix Uteri* ; Drug Therapy ; Early Diagnosis ; Epithelial Cells ; Female ; Humans ; Hysterectomy ; Lymph Nodes ; Metrorrhagia ; Mucins ; Neoplasm Metastasis ; Prognosis ; Radiotherapy

The use of intravitreal corticosteroids in the management of endophthalmitis remains controversial. This study was performed to evaluate the effectiveness of dexamethasone(DXM) in Candida endophthalmitis. In rabbits, Candida albicans(3,000 blastospore: Group A, 30,000 blastopore: Group B) was inoculated intrabitreally. At 24, 48, and 72 hours postinoculation, single intravitreal dose of amphotericin B(AMP, 5microgram/0.1ml) with DXM(400microgram/0.1ml) or AMP alone was given. Clinical examination, protein analysis, electrophysiological and histopathologic measures were utilized to rate DXM effectiveness. Dosage of 5microgram AMP resulted in no culture in both Group A and B, On examinations including the electrophysiologic and histopathologic studies, eyes treated with AMP and DXM did not differ from eyes treated with AMP alone in the Group A(p>0.05). On protein analysis for vitreous in the Group B, however, eyes treated with AMP alone at 24 and 48 hours postinoculation(p<0.05). On electrophysiologic study the decrease rate of the amplitude showed the difference between at 24 hours postinoculation and at 48 or 72 hours postinoculation(p<0.05). Histologic preparations showed a mild or moderate cellular infilteration in the vitreous and swelling in the sensory retina, but small abscess in the vitreous observed when treatment was delayed more than 72 hours following inoculation in both Group A and B. DXM in the experimental Candida endophthalmitis had the beneficial effect in eyes with 30,000 blastspore inoculation and in eyes treated with AMP and DXM at 24 hours postinoculation.
Abscess ; Adrenal Cortex Hormones ; Amphotericin B ; Candida* ; Dexamethasone* ; Endophthalmitis* ; Gastrula ; Intravitreal Injections ; Rabbits ; Retina

No abstract available.
Animals ; Burns* ; Rats*

The purpose of the study is to evaluate the induced astigmatism after spherical LASIK operations. A total of 36 eyes of 33 patients were treated with a Automated keratome and VISX 20/20 excimer laser. The postoperative 1 month, 3 months, and 6 months astigmatic refractive outcomes were compared with the initial refraction by vector analysis (Alpins and Holladay method). Subjective astigmatic refraction reduced from a mean of 0.48D+/-SD 0.49D(range, 0 to 1.75D) to 0.34D+/-SD 0.54D(range, 0 to 2.0D) at postoperative 6 months.Surgically induced astigmatism(SIA) had a mean of 0.53+/-0.69D(range: 0~2.49D) at 1 month, 0.49+/-0.61D(range: 0~2.79D) at 3 months, 0.62+/-0.72D(range: 0~3.14D) at 6 months follow-up. Mean SIA increased with increasing preoperative astigmatism by 0.45D SIA for every 0.5D of preoperative cylinder(Correlation coefficient: 0.618). The authors show that spherical LASIK corrections can induce significant astigmatic change, particularly if a large amount of preoperative astigmatism is present.
Astigmatism* ; Follow-Up Studies ; Humans ; Keratomileusis, Laser In Situ* ; Lasers, Excimer

We implanted aniridia intraocular lenses (aniridia IOL) on three cases with complaint of glare caused by traumatic or congenital aniridias combined with cataract or aphakia. Aniridia IOLs were fixed by scleral fixation on one aphakia with traumatic aniridia, and at the ciliary sulcus on one aphakia with traumatic aniridia and one congenital aniridia with cataract. After follow-up of at least 2 months, visual improvement, absence of glare and cosmetic acceptance was observed without any complication in all cases.
Aniridia* ; Aphakia ; Cataract ; Follow-Up Studies ; Glare ; Lenses, Intraocular*

No abstract available.
Adult ; Autoantibodies/*blood ; Gangliosides/blood/*immunology ; Humans ; Male ; Ophthalmoplegia/blood/*diagnosis/immunology ; Recurrence ; Syndrome