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991.
OBJECTIVE: To investigate whether the S + G2/M fraction (proliferative index) is a prognostic determinant in breast cancers classified as Auer IV. STUDY DESIGN: Prognostic evaluation of Auer IV DNA histograms with respect to the high versus low S + G2/M fraction, obtained by image cytometry on consecutive breast cancer imprint preparations. RESULTS: When studying recurrence-free survival (n = 136), the prognostic value of S + G2/M was found to vary with time: it was negligible before the median time to relapse (1.5 years) but thereafter statistically significant, in both univariate and multivariate analysis. The same pattern was found when overall survival was used as the end point; the effect was delayed to about the median time until death (three years). Tumors with a low S + G2/M fraction were smaller and more often estrogen receptor- and progesterone receptor-positive than those with a high S + G2/M fraction. CONCLUSION: According to ICM-DNA values corresponding to the S + G2/M region, patients with breast cancers classified as Auer IV can be divided into subgroups with different tumor characteristics and prognoses. 相似文献
992.
JJ Claus I de Koning F van Harskamp MM Breteler B Voet H Gutzmann F Dahlke T van der Cammen A Hofman 《Canadian Metallurgical Quarterly》1998,21(3):190-195
The approach to nasal bone classic corrective rhinoplasty is an almost-blind technique, where the results depends on feeling by the surgeon's hand. To overcome these drawbacks, endoscopic-assisted corrective rhinoplasty and septoplasty were performed for 16 cases of deviated noses between January 1995 and May 1997. The average follow-up period was 18 months. All patients were evaluated by symmetrical nasal pyramid, recurrence of the bony deflection, and septal deviation. The postoperative courses were satisfactory in most cases, with few complications. Compared with 28 cases of classic rhinoplasty, the patient satisfaction rate was high (87.5% in endoscopic-assisted rhinoplasty, 71.4% in classic rhinoplasty), and the complication and revision rate was low (0% in endoscopic-assisted rhinoplasty, 14.3 and 7.1% in classic rhinoplasty). But extra time (about 40 min) and greater expense were required for endoscopic-assisted rhinoplasty. It appeared to us that endoscopic control during corrective rhinoplasty and septoplasty is a big step toward obtaining better results in bony and cartilage resection with extreme precision under monitor control and magnification. This technique is not an open approach but permits one to see more of the nasal skeleton and bony septum, the cause of the deformity, and the immediate effect of the corrective measures used. The use of an endoscope in corrective rhinoplasty for deviated noses provides an expanded field of vision, direct manipulation of lesions, and better aesthetic and functional results. 相似文献
993.
MM Henriksson MJ Marttunen ET Isomets? ME Heikkinen HM Aro KI Kuoppasalmi JK L?nnqvist 《Canadian Metallurgical Quarterly》1995,7(2):275-286
The purpose of this study was to investigate the prevalence and comorbidity of current mental disorders defined by DSM-III-R among elderly suicide victims and to compare them with the mental disorders among younger victims. Using a psychological autopsy method, we collected comprehensive data on all suicides in Finland during 1 year. Retrospective Axis I-III consensus diagnoses were assigned to a random sample consisting of 43 victims aged 60 years or over and 186 victims aged under 60 from the nationwide suicide population. At least one Axis I diagnosis was made for 91% of the elderly victims. Major depression as the principal diagnosis was more common among the elderly victims. Almost all elderly female victims were major depressives. Psychiatric comorbidity was more common among elderly male than among elderly female victims. More of the elderly victims (88%) than the younger (36%) received Axis III diagnoses. Suicide among the elderly without a diagnosable mental disorder and somatopsychiatric comorbidity seems to be rare. 相似文献
994.
VP Barkhatova ZA Suslina VG Ionova IA Chudakova OE Mel''kina MM Tanashian OIu Rebrova 《Canadian Metallurgical Quarterly》1998,98(8):34-38
Contents of lipids (cholesterol CS, triglycerides) as well as levels of CS of lipoproteins of different density and of apolipoproteins A1 and B were measured in blood serum of 31 patients in different periods after of ischemic stroke. The majority of the indices studied were significantly decreased in men in acute periods of the stroke, especially in 8-21 days after the stroke development. Meanwhile, the levels of lipids, CS lipoproteins of both low and very low densities were increased later. Contents of CS of antiatherogenic lipoproteins of high density (HDLP) was low in different periods after the development of disorders of cerebral circulation. This confirms the concept that low level of HDLP is one of the risk factors of ischemic stroke. Decrease of the levels of both lipids and CS of lipoproteins of different density was more pronounced in patients with more severe atherosclerotic damages of the main cerebral arteries. Disorders of metabolism of lipoproteins in ischemic disorders of cerebral circulation are discussed with reference to literary data taking into consideration their heterogeneity. Genetically determined pathology of certain apolipoproteins plays a key role factor in the development of early atherosclerosis and in the elucidation of biochemical markers of the primary damages of cerebral vessels. 相似文献
995.
B Sammak B Yousef M Abd El Bagi M Al Karawi A Mohamed M Gali M Al Shahed 《Canadian Metallurgical Quarterly》1998,45(22):1097-1099
We report two cases of needle track seeding in the subcutaneous tissue and intercostal muscles following percutaneous ethanol injection for the treatment of hepatocellular carcinoma. In one patient, tumor seeding was observed 11 months after a total of 12 alcohol injections, and in the other patient, tumor seeding was observed 30 months after a total of 18 alcohol injections. The cases reported in the literature are discussed. 相似文献
996.
M Wilk M Rietschel J K?rner HJ M?ller MM N?then R Bauer HW Kreysel 《Canadian Metallurgical Quarterly》1994,45(5):313-317
We raised an anti-glioma monoclonal antibody, named G-22, that specifically recognizes a human glioma-associated surface antigen. Proven to be useful for target imaging of malignant gliomas after radioisotope labeling and cerebrospinal fluid diagnosis by enzyme-linked immunospecific assay, G-22 was found to immunoprecipitate an 85-kDa glycoprotein of the human glioma U-251MG cell. We purified this antigen by G-22-coupled cyanogenbromide-activated Sepharose affinity chromatography, and sequence analysis demonstrated that the 54 amino acid residues were identical to positions 55-108 of human CD44. The results show that the smallest spliced form (85 kDa) of CD44 is strongly expressed in glioma cells. 相似文献
997.
MM Matzuk L Dionne Q Guo TR Kumar RM Lebovitz 《Canadian Metallurgical Quarterly》1998,139(9):4008-4011
Copper/zinc superoxide dismutase (SOD1) and manganese superoxide dismutase (SOD2) are the two major intracellular enzymes which inactivate superoxide radicals. SOD1 is present in both cytoplasmic and nuclear compartments whereas SOD2 is localized to mitochondria. Both enzymes are expressed in multiple tissues as well as ovaries of several species including humans and rodents. Dominant mutations in SOD1 are associated with amyotrophic lateral sclerosis. We have previously demonstrated that SOD2-deficient mice die within three weeks of birth due to oxidative mitochondrial injury in central nervous system neurons and cardiac myocytes. In this report, we demonstrate that female homozygous mutant mice lacking SOD1 can survive to the adult stage but are subfertile. Whereas breeding of 5 SOD1 heterozygote females produced an average of 1.0 litter/month with 8.6 offspring/litter (n = 31 litters), only 11 of 16 SOD1 homozygote mice over a 2-6 month period became pregnant averaging 0.23 litters/month with an average litter size of 2.7 (n = 21 litters). Histological analysis of the ovaries from SOD1-deficient mice often reveals many primary and small antral follicles but few corpora lutea. In addition, ovaries from postnatal SOD2-deficient mice, transplanted to the bursa of wild-type hosts, show all stages of folliculogenesis including corpora lutea and can give rise to viable offspring. These studies support an important role of SOD1 in female reproductive function and suggest that SOD2 is not essential for ovarian function. 相似文献
998.
999.
1000.
MM Brueren HJ Schouten PW de Leeuw GA van Montfrans JW van Ree 《Canadian Metallurgical Quarterly》1998,48(434):1585-1589
BACKGROUND: Several studies have reported overdiagnosis and overtreatment of hypertensive patients, especially in borderline hypertensives. AIM: To find a blood pressure measurement procedure that reduces the risk of misclassification to an acceptable level. METHOD: Comparative, prospective study over seven months of primary care patients with elevated initial blood pressures. Blood pressure measurements made by general practitioners (GPs), practice nurses, and patients were compared with ambulatory blood pressure measurements. RESULTS: Ninety-nine patients completed the study. Mean differences (systolic blood pressure) between different measurement procedures and ambulatory measurement ranged from +10 mmHg (doctor) to -1 mmHg (patient), and (diastolic) from +4 mmHg (doctor) to -2 mmHg (patient). Standard deviations of mean differences ranged from 12 mmHg (doctor/systolic) to 10 mmHg (patient/systolic), and from 8 mmHg (doctor/diastolic) to 7 mmHg (patient/diastolic). CONCLUSION: Self-measurements by the patient appear to be a reliable alternative to ambulatory blood pressure measurement. In diagnosing and managing mild hypertension, we recommend the use of a valid self-measuring device. 相似文献