The platelet counts documented in most of the studies using the fully automated hematology analyzer XE-5000 are values measured by impedance technology (PLT-I). If blood specimens showing an anomalous particle-size distribution curve in the area where platelet counts are low are used (exceptionally low platelet count samples), the counting method is automatically switched over to an optical method (PLT-O). In the present study, we examined the usefulness of the XE-5000 by comparing PLT-I with PLT-O, using blood samples with low platelet counts collected from patients who visited our hospital between January 1 and March 31, 2012. Dilution linearity left nothing to be desired in either of the two, but simultaneous reproducibility was higher in PLT-O than in PLT-I. The correlations of PLT-I and PLT-O with visual counts were high, working out at r＝0.889～0.984. In the exceptionally low platelet count samples, the correlation coefficient was high in PLT-O than in PLT-I. The cases showing low platelet counts frequently presented giant platelets and/or red cell fragments. Therefore, measuring the samples with low platelet counts requires a high degree of precision. In the samples with exceptionally low platelet counts, PLT-O exceeded PLT-I in simultaneous reproducibility and correlation with visual counts. Thus, our study demonstrated the usefulness of the XE-5000 that could enumerate PLT-O automatically and speedily.

  Generic drugs have received much attention especially from an economic point of view.  In Japan, the form of medical prescriptions has been revised twice in recent two years to disseminate generic drugs in recent two years.  The pharmacists are irresistibly required the detail knowledge of various generic drugs.  However, sufficient information on generic drugs has not always been provided in comparison with the original drugs.  This study intends to reveal such problems with the generic drugs.  Glibenclamide and gliclazide were selected as the model drugs for this study because these two drugs are often taken together with supplements.  Two approaches were used to compare the original drug and the corresponding generic drugs.  The first approach concerns the amount of information as well as the quality of the information that is provided from manufacturers.  The second approach concerns the physicochemical properties, dissolution test and hardness test.  Regarding the pharmacokinetic information in the package insert of glibenclamide, six generic drugs among eleven samples provided sufficient information while four samples seemed insufficient.  As for gliclazide, three samples among eight did not provide AUC and the time dependence of the blood concentration curve.  The results of the dissolution test revealed that all generic drugs satisfied most of the equivalence to the original drug except for one generic glibenclamide.  On the other hand, different behaviors in the swelling property and the time required to completely disperse were observed.  Two samples for glibenclamide and four samples for gliclazide required a fairly long time to completely disperse.  Irregular and significant variations were observed in the hardness test.  The difference in the dissolution process and hardness test suggested the different drug formulations among manufacturers.

Objective: This study aimed to investigate the validity and reliability of the Japanese version of the Rathus assertiveness schedule (J-RAS) in psychiatric day care users with schizophrenia.Subjects and Methods: We examined 715 psychiatric day care users with schizophrenia by conducting the test twice between September 2007 and February 2008 using a questionnaire-based survey. We examined construct validity and used the internal reliability test, split-half method, and test–retest method to examine reliability. The questionnaires were distributed and collected by post via the director of each facility.Results: Of the 1272 psychiatric day care users, 715 users (56.2%) were enrolled in the study. Seven factors were extracted for construct validity. The cumulative contribution rate of these factors was 49.4% and the internal consistency of 30 items of the J-RAS was α = 0.72. The split-half method revealed a significant correlation between the total scores of the odd- and even-numbered items (r = 0.64, p < 0.01). The test–retest method revealed a significant difference between the total scores of the first and second tests of the 30 items of the J-RAS (r = 0.73, P < 0.01).Conclusion: We confirmed the validity and reliability of the J-RAS in psychiatric day care users with schizophrenia and demonstrated its efficacy in evaluating psychiatric day care users.

OBJECTIVE: To investigate the clinical feasibility of dual energy subtraction (DES) imaging to improve the delineation of the vocal cord and diagnostic accuracy of vocal cord paralysis as compared with the anterior-posterior view of flat panel detector (FPD) neck radiography. MATERIALS AND METHODS: For 122 consecutive patients who underwent both a flexible laryngoscopy and conventional/DES FPD radiography, three blinded readers retrospectively graded the radiographs during phonation and inspiration on a scale of 1 (poor) to 5 (excellent) for the delineation of the vocal cord, and in consensus, reviewed the diagnostic accuracy of vocal cord paralysis employing the laryngoscopy as the reference. We compared vocal cord delineation scores and accuracy of vocal cord paralysis diagnosis by both conventional and DES techniques using kappa statistics and assessing the area under the receiver operating characteristic curve (AUC). RESULTS: Vocal cord delineation scores by DES (mean, 4.2 +/- 0.4) were significantly higher than those by conventional imaging (mean, 3.3 +/- 0.5) (p < 0.0001). Sensitivity for diagnosing vocal cord paralysis by the conventional technique was 25%, whereas the specificity was 94%. Sensitivity by DES was 75%, whereas the specificity was 96%. The diagnostic accuracy by DES was significantly superior (kappa = 0.60, AUC = 0.909) to that by conventional technique (kappa = 0.18, AUC = 0.852) (p = 0.038). CONCLUSION: Dual energy subtraction is a superior method compared to the conventional FPD radiography for delineating the vocal cord and accurately diagnosing vocal cord paralysis.
Absorptiometry, Photon/*instrumentation/*methods ; Adolescent ; Adult ; Aged ; Aged, 80 and over ; Child ; Child, Preschool ; Feasibility Studies ; Female ; Humans ; Male ; Middle Aged ; Observer Variation ; Reproducibility of Results ; Sensitivity and Specificity ; Subtraction Technique ; Vocal Cord Paralysis/*radiography ; Vocal Cords/radiography ; *X-Ray Intensifying Screens ; Young Adult

OBJECTIVE: This study was conducted to examine the effects of front-line chemotherapy on overall survival (OS) and postrecurrence survival (PRS) of patients with recurrent ovarian cancer, when stratifying the histologic type. METHODS: Five hundred and seventy-four patients with recurrent ovarian cancer with sufficient clinical information, including front-line chemotherapy, were analyzed. The pathologic slides were evaluated by central pathologic review. The patients were divided into two groups: group A (n=261), who underwent taxane plus platinum, and group B (n=313), who underwent conventional platinum-based chemotherapy without taxanes. RESULTS: The median age was 54 years (range, 14 to 89 years). Group A had significantly better median OS (45.0 months vs. 30.3 months, p<0.001) and PRS (23.0 months vs. 13.0 months, p<0.001) compared to group B. The OS and PRS were similar between the groups in patients with clear cell or mucinous histology. In contrast, among patients with non-clear cell, non-mucinous histologies, the OS and PRS of group A were significantly better than those of group B (OS, p<0.001; PRS, p<0.001). Multivariable analyses revealed that, among patients with non-clear cell, non-mucinous histologies, chemotherapy including taxane and platinum was an independent predictor of favorable survival outcomes. Conversely, in patients with clear cell or mucinous histology, taxane-including platinum-based combination chemotherapy did not improve the OS and PRS compared to a conventional platinum-based regimen which did not include taxanes. CONCLUSION: Since the emergence of taxane plus platinum, the prognosis of patients with recurrent ovarian cancer has improved. However, we here demonstrate that this improvement is limited to patients with non-clear cell, non-mucinous histologies.
Drug Therapy ; Drug Therapy, Combination ; Humans ; Mucins ; Ovarian Neoplasms* ; Platinum* ; Prognosis ; Taxoids