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Hiroe T, Moriya S, Kobayashi S, Nishijima Y, Watanabe A, Shirabe K, Ikota H, Yokoo H, Saio M. Negative correlation between the nuclear size and nuclear Lamina component Lamin A in intraductal papillary mucinous neoplasms of the pancreas. Pathol Oncol Res 2022; 28:1610684. [PMID: 36561231 PMCID: PMC9764245 DOI: 10.3389/pore.2022.1610684] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/02/2022] [Accepted: 11/23/2022] [Indexed: 12/12/2022]
Abstract
Background: The nuclear laminar protein Lamin A and inner nuclear membrane protein Emerin plays important role in sustaining nuclear structure. However, They have not investigated the significance of these proteins for development of pancreatic intraductal papillary mucinous neoplasm (IPMN). Methods: We examined pancreatic IPMN specimens for nuclear morphology and nuclear protein expression pattern of Lamin A and Emerin. Forty-two IPMN specimens were included, with 30 classified as intraductal papillary mucinous adenoma (IPMA) and 12 as intraductal papillary mucinous carcinoma (IPMC). Results: Classification according to histological subtype revealed that 26 specimens were of the gastric subtype (1 IPMC case), 8 were pancreatobiliary (6 IPMC cases), 6 were intestinal (3 IPMC cases), and 2 were oncocytic (all cases were IPMC). The frequency of IPMN subtypes in this study seemed to agree with those in previous reports. We analyzed Feulgen staining sections for nuclear morphological analysis using computer-assisted image analysis. Nuclear area and perimeter were significantly larger in IPMC than in IPMA. Finally, we examined the positive ratios of Lamin A and Emerin in immunohistochemical staining sections by image analysis. We found a negative correlation between the nuclear size and Lamin A-positive ratio, which was significantly lower in IPMC than that in IPMA. However, no significant correlation was observed between nuclear size and Emerin expression was observed, and no differences were found in the Emerin-positive ratio between IPMA and IPMC. Conclusion: Our results suggest that a decreased Lamin A positive ratio induces nuclear enlargement in adenomas, which thereby induce promotion to carcinomas. Furthermore, Lamin A expression can be a reliable biomarker for distinguishing between IPMC and IPMA.
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Affiliation(s)
- Tamaki Hiroe
- Laboratory of Histopathology and Cytopathology, Department of Laboratory Sciences, Graduate School of Health Sciences, Gunma University, Maebashi, Gunma, Japan
| | - Shunichi Moriya
- Laboratory of Histopathology and Cytopathology, Department of Laboratory Sciences, Graduate School of Health Sciences, Gunma University, Maebashi, Gunma, Japan
| | - Sayaka Kobayashi
- Laboratory of Histopathology and Cytopathology, Department of Laboratory Sciences, Graduate School of Health Sciences, Gunma University, Maebashi, Gunma, Japan
| | - Yoshimi Nishijima
- Laboratory of Histopathology and Cytopathology, Department of Laboratory Sciences, Graduate School of Health Sciences, Gunma University, Maebashi, Gunma, Japan
| | - Akira Watanabe
- Department of Hepatobiliary and Pancreatic Surgery, Graduate School of Medicine, Gunma University, Maebashi, Gunma, Japan
| | - Ken Shirabe
- Department of Hepatobiliary and Pancreatic Surgery, Graduate School of Medicine, Gunma University, Maebashi, Gunma, Japan
| | - Hayato Ikota
- Clinical Department of Pathology, Gunma University Hospital, Maebashi, Gunma, Japan
| | - Hideaki Yokoo
- Department of Human Pathology, Graduate School of Medicine, Gunma University, Maebashi, Gunma, Japan
| | - Masanao Saio
- Laboratory of Histopathology and Cytopathology, Department of Laboratory Sciences, Graduate School of Health Sciences, Gunma University, Maebashi, Gunma, Japan,*Correspondence: Masanao Saio,
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Koizumi T, Katsutoshi T, Ikuko M, Hiroe T, Okihiro O, Kazuya I, Tetsuo N, Masaki T, Toshiki M. Quantitative analysis of magnetic resonance images during white matter lesion formation in chronic hypertensive model rat. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.1728] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Gotoh N, Manova K, Tanaka S, Murohashi M, Hadari Y, Lee A, Hamada Y, Hiroe T, Ito M, Kurihara T, Nakazato H, Shibuya M, Lax I, Lacy E, Schlessinger J. The docking protein FRS2alpha is an essential component of multiple fibroblast growth factor responses during early mouse development. Mol Cell Biol 2005; 25:4105-16. [PMID: 15870281 PMCID: PMC1087717 DOI: 10.1128/mcb.25.10.4105-4116.2005] [Citation(s) in RCA: 71] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2004] [Revised: 11/23/2004] [Accepted: 12/28/2004] [Indexed: 11/20/2022] Open
Abstract
The docking protein FRS2alpha is a major mediator of fibroblast growth factor (FGF) signaling. However, the physiological role of FRS2alpha in vivo remains unknown. In this report, we show that Frs2alpha-null mouse embryos have a defect in anterior-posterior (A-P) axis formation and are developmentally retarded, resulting in embryonic lethality by embryonic day 8. We demonstrate that FRS2alpha is essential for the maintenance of self-renewing trophoblast stem (TS) cells in response to FGF4 in the extraembryonic ectoderm (ExE) that gives rise to tissues of the placenta. By analyzing chimeric embryos, we found that FRS2alpha also plays a role in cell movement through the primitive streak during gastrulation. In addition, experiments are presented demonstrating that Bmp4 expression in TS cells is controlled by mitogen-activated protein kinase-dependent FGF4 stimulation. Moreover, both the expression of Bmp4 in ExE and activation of Smad1/5 in epiblasts are reduced in Frs2alpha-null embryos. These experiments underscore the critical role of FRS2alpha in mediating multiple processes during embryonic development and reveal a potential new link between FGF and Bmp4 signaling pathways in early embryogenesis.
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Affiliation(s)
- N Gotoh
- Department of Pharmacology, Yale University School of Medicine, 333 Cedar Street, New Haven, CT 06520, USA
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Tachibana M, Hiroe T, Kanaoka Y, Ohgi S. Quantitative air-plethysmographic venous function and ambulatory venous pressure in patients with primary varicose vein. INT ANGIOL 2004; 23:213-7. [PMID: 15765035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
AIM The purpose of this study was to investigate the relationship between air-plethysmographic volume parameters under standard exercise loading and foot venous pressure parameters under ideal exercise loading in patients with primary varicose veins. METHODS Seventy-one lower limbs in 39 patients with primary varicose veins and 8 lower limbs in 4 healthy controls were examined. The patients included 12 males and 27 females, ranging in age from 36 to 79 years. Eighteen limbs were asymptomatic (class 0) limbs, 28 limbs had symptoms of swelling or heaviness (class 1), and 25 had skin lesions (class 2+3). The patients and controls were examined with duplex scanning, air-plethysmography, and ambulatory foot venous pressure measurement. RESULTS The mean ambulatory venous pressure (AVP) was significantly higher in the class 2+3 limbs than in the other classes, but it was not significantly higher in class 1 than in class 0. There were no significant differences between the class 2+3 limbs and class 1 limbs in any of the air-plethysmographic parameters. However, the VFI in the class 0 limbs was significantly different from that in the other 2 groups. Among all parameters examined, the venous filling index (VFI) was the most closely correlated with the AVP. All air-plethysmographic parameters were negatively correlated with the VRT. CONCLUSIONS Among non-invasive air-plethysmographic volume parameters, VFI is the most reliable indicator for quantitative evaluation of calf pump function.
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Affiliation(s)
- M Tachibana
- Division of Organ Regeneration Surgery, Department of Surgery, Tottori University Faculty of Medicine, Tottori, Japan
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Ohashi F, Hiroe T, Fujiwara K, Matsuo H. Strain-rate and temperature effects on the deformation of polypropylene and its simulation under monotonic compression and bending. POLYM ENG SCI 2004. [DOI: 10.1002/pen.11011] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Saiki M, Nakashima H, Maeda T, Tamai N, Hiroe T, Kanaoka Y, Ohgi S. Common hepatic artery aneurysm branching from the superior mesenteric artery. Report of a case. J Cardiovasc Surg (Torino) 2004; 45:59-62. [PMID: 15041939] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
Abstract
A 58-year-old man was notified as having a mass in the head of the pancreas at medical checkup on September 26, 2000. He was admitted to our department after being diagnosed as having an aneurysm in the common hepatic artery, branching from the superior mesenteric artery (SMA), based on selective SMA angiography. From an abdominal midline incision, we were able to reach his common hepatic artery aneurysm (CHAA) by mobilizing the pancreas through the route lateral to the greater curvature of the stomach. This aneurysm arose in the common hepatic artery immediately after branching from the SMA. After proximal and distal control of the SMA and common hepatic artery, the aneurysm was incised and the distal hepatic artery was anastomosed end to side to the SMA. The patient had an uneventful postoperative course.
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Affiliation(s)
- M Saiki
- Second Department of Surgery, Tottori University Faculty of Medicine, Yonago, Japan.
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Nishimura K, Maeda T, Hiroe T, Honda T, Kamihira S, Kanaoka Y, Ohgi S. Left renal artery aneurysm with left accessory renal arteries. A case report. INT ANGIOL 2002; 21:103-6. [PMID: 11941283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
Abstract
A 57-year-old man was suspected of having a left renal artery aneurysm on enhanced computed tomography (CT) findings. Aortic angiography showed 3 left renal arteries with an aneurysm of the distal main renal artery. A 3 mm upper pole renal artery which crossed near the aneurysm was preserved. Dissection of the aneurysm was followed by arterial reconstruction with end-to-end anastomosis.
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Affiliation(s)
- K Nishimura
- Second Department of Surgery, Faculty of Medicine, Tottori University, Yonogo, Japan
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Furuya S, Hiroe T, Ogiso N, Ozaki T, Hori S. Localization of endothelin-A and -B receptors during the postnatal development of rat cerebellum. Cell Tissue Res 2001; 305:307-24. [PMID: 11572084 DOI: 10.1007/s004410100386] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Intense expression of mRNA of endothelin-B receptor (ETBR) has been detected in the Bergmann glia of cerebellum by in situ hybridization, but the intracellular localization has not been reported because of the absence of a useful antibody for immunohistochemical investigations. We made polyclonal antibodies against the carboxyl terminus of human ETBR (420-442) and ETAR (403-427), and performed light- and electron-microscopic immunohistochemistry of the wild-type and ETBR-deficient (sl/sl) rat cerebella. Localization of ETBR during postnatal development was examined by double-staining immunofluorescence using antibodies against ETBR and S-100 beta. In the wild-type rats, ETBR immunoreactivity appeared from postnatal day 5 (P5) and was distributed diffusely in the processes and cell bodies of S-100 beta-positive glial cells. By P14, ETBR immunoreactivity was concentrated in the Golgi apparatus of Bergmann glial cell soma and the plasma membrane of its processes. The ETBR-positive astrocytes in the granular layer decreased in number during P7-14 and had disappeared by week 3. At 3 weeks, ETBR immunoreactivity was restricted to the Golgi apparatus of Bergmann glia. In the sl/sl rats, ETBR immunoreactivity was not observed at all. In contrast to ETBR, ETAR immunoreactivity appeared transiently in the cytoplasm of all astrocytes (Bergmann glia and astrocytes in the granular layer) in the 9- to 14-day-old wild rats and 7- to 14-day-old sl/sl rats, and disappeared within 3 weeks in both. Granule cells did not express immunoreactivity for ETBR and ETAR from the neonatal stage to adulthood. Changes in the intracellular localization of ETBR and transient expression of ETAR may be correlated with the changes of glial functions and proliferation during postnatal development of rat cerebellum.
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Affiliation(s)
- S Furuya
- National Institute for Physiological Sciences, Myodaiji, Okazaki 444-8585, Japan.
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Abstract
OBJECTIVE To determine whether social functional recovery precedes, runs in parallel with, or lags behind symptomatic recovery from major depressive episodes. METHOD Psychiatric out-patients or in-patients aged 18 years or over, diagnosed with unipolar major depressive disorder according to DSM-IV, and who had received no antidepressant medication in the preceding 3 months were identified at 23 collaborating centres from all over Japan (n=95). They were rated with the 17-item Hamilton Rating Scale for Depression (HRSD) and the Global Assessment Scale (GAS) monthly, and with the Social Adjustment Scale-Self Report (SAS-SR) 6-monthly. Remission was defined as 7 or less on the HRSD and recovery as 2 or more consecutive months of remission. RESULTS The GAS ratings showed continuous amelioration from baseline to remission, remission to recovery, and after sustained recovery. The same trends were observed for SAS-SR scores. CONCLUSION We can expect further amelioration in social adjustment after symptomatic remission and recovery of major depressive episodes.
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Affiliation(s)
- T A Furukawa
- Department of Psychiatry, Nagoya City University Medical School, Nagoya, Japan
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Furuya S, Hiroe T, Ozaki T, Takimoto M, Hori S. Localization of endothelin A receptors in the rat pituitary TSH cells: light- and electron-microscopic immunohistochemical studies. Cell Tissue Res 2000; 302:85-94. [PMID: 11079719 DOI: 10.1007/s004419900169] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Endothelins modulate hormonal secretion in the pituitary gland. Intense signaling of endothelin A receptors (ET(A)R) has been detected by in situ hybridization, binding assay and receptor autoradiography. We used light- and electron-microscopic immunohistochemistry of ET(A)R with polyclonal antibody against a synthetic peptide corresponding to the carboxyl terminus (403-427) of human ET(A)R. Immunoreactivity was observed in 6-8% of anterior pituitary cells, which were rather large polygonal or stellate cells. These cells were often clustered. Double-staining immunofluorescence showed that the ET(A)R-positive cells immunoreacted with antibody against the beta-subunit of thyroid-stimulating hormone (TSH), but not adrenocorticotropic hormone (ACTH) or lutenizing hormone beta (LHbeta). Pre- and postembedding electron-microscopic immunohistochemistry showed that ET(A)R-positive cells had vacuolated or parallel-lined rough endoplasmic reticulum (rER) and numerous round granules in their periphery and the elongated processes. By pre-embedding immunohistochemistry, diaminobenzidine tetrahydrochloride (DAB) products were shown to be mostly located around the granules and occasionally underneath the plasma membrane. By postembedding immunohistochemistry, granules in the ET(A)R-positive cells were 90-150 nm in diameter, and colloidal gold particles due to ET(A)R were associated with about 10% of these granules. These results indicate that ET(A) receptors are associated mostly with the secretory granules of TSH cells.
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Affiliation(s)
- S Furuya
- National Institute for Physiological Sciences, Myodaiji, Okazaki, Japan.
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Nishimura K, Kanaoka Y, Ikebuchi M, Hiroe T, Tachibana M, Ishiguro S, Ohgi S. Percutaneous balloon fenestration in a case of traumatic abdominal aortic dissection with lower extremity ischemia. J Vasc Surg 2000; 32:616-8. [PMID: 10957673 DOI: 10.1067/mva.2000.106956] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
A 38-year-old man was involved in a traffic accident and experienced a heavy blow to the abdomen. He had traumatic abdominal aortic dissection with right lower extremity ischemia. He underwent percutaneous balloon fenestration, which is safe and minimally invasive, for relief of right lower extremity ischemia. He has been working for 2 years without any signs of vascular compromise. Percutaneous balloon fenestration is one of the few treatments for traumatic abdominal aortic dissection.
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Affiliation(s)
- K Nishimura
- Second Department of Surgery, Tottori University, Faculty of Medicine, Yonago, Japan
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Furukawa TA, Anraku K, Hiroe T, Takahashi K, Yoshimura R, Hirai T, Kitamura T, Takahashi K. A polydiagnostic study of depressive disorders according to DSM-IV and 23 classical diagnostic systems. Psychiatry Clin Neurosci 1999; 53:387-96. [PMID: 10459741 DOI: 10.1046/j.1440-1819.1999.00562.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
The classification of mood disorders is one of the most highly debated topics in modern psychiatry. The introduction of DSM-III (and its followers) has set a new standard in this controversy but little empirical evidence is available as to how the various classical diagnostic categories of mood disorders by Kraepelin, Schneider, Leonhard, Hamilton, Kielholz, Winokur and others compare with this new standard. The Intensive Prospective Study arm of the Group for Longitudinal Affective Disorders Study has studied a broad spectrum of mood disorders in 23 participating centres from all over Japan with a polydiagnostic semistructured interview called Comprehensive Assessment List of Affective disorders. In this paper we examined how the various classical diagnostic systems of depressive disorders correspond to the DSM-IV diagnoses, and found the following: (1) The classical 'neurotic' or 'psychogenic' depressions are diagnosed as major depression and not as dysthymia in DSM-IV; although dysthymia was dubbed as 'depressive neurosis' in DSM-III, its criteria were not true to the traditional usage of the term. Viewed from the other side of the coin, DSM-IV can be said to stand in the unitary tradition. (2) Some of the classical diagnostic categories such as Schneider's depressive psychopathy and Klein's acute dysphoria as well as modern ones such as Akiskal's subaffective dysthymia and Angst's recurrent brief depression were rarely seen in traditional psychiatric treatment settings. (3) Comparisons of the unique diagnostic systems such as those by Leonhard, Winokur and Berner warrant further studies on their validity.
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Affiliation(s)
- T A Furukawa
- Department of Psychiatry, Nagoya City University Medical School, Japan.
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Fukino S, Fukata T, Nakamura Y, Hiroe T, Nitta S, Morio S. [Giant localized fibrous pleural mesothelioma accompanying lung metastasis--a case report]. Nihon Kyobu Geka Gakkai Zasshi 1997; 45:882-7. [PMID: 9217389] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
We experienced a case of giant localized fibrous pleural mesothelioma accompanying lung metastasis. The patient was a 26-year-old woman, who was pointed out elevation of the left diaphragma by the chest roentgenogram in 1992 but left it as it was. In 1995, a giant tumor occupying 1/2 or more of the left thoracic cavity was detected by chest CT and MRI. A giant localized pleural mesothelioma was suspected since there was no accumulation in Ga scintigram and an operation was performed. The tumor originated without pedicle and with invasion of the lung from the pleura of the left S8 and it was excised by separating the left lower lobe at 7-cm distance from the tumor. The tumor was 20 x 12 x 11 cm in size weighing 1700 g and the histopathological diagnosis was localized fibrous pleural mesothelioma. A lung metastasis of 1.0 cm in size was found in a part of the left lower lobe resected at the same time. The postoperative course has been satisfactory and there is no sign of recurrence at present. There are occasional cases of recurrence associated with a localized fibrous pleural mesothelioma even though it is judged benign. In the present case, a metastatic focus was already present at the time of initial surgery and is considered a valuable case.
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Affiliation(s)
- S Fukino
- Department of Surgery, Tottori Prefecture Kousei Hospital, Kurayoshi, Japan
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Furukawa T, Anraku K, Hiroe T, Takahashi K, Kitamura T, Hirai T, Takahashi K, Iida M. Screening for depression among first-visit psychiatric patients: comparison of different scoring methods for the Center for Epidemiologic Studies Depression Scale using receiver operating characteristic analyses. Psychiatry Clin Neurosci 1997; 51:71-8. [PMID: 9141144 DOI: 10.1111/j.1440-1819.1997.tb02910.x] [Citation(s) in RCA: 24] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
The present paper aims to compare the ability of eight scoring methods for the Center for Epidemiologic Studies Depression Scale (CES-D), one of the most widely used self-report inventories for depression, to screen for a major depressive episode. The subjects were 591 patients who constituted representative samples of the first-visit patients to 23 psychiatric hospitals and clinics all over Japan. The criterion diagnoses were given by a semi-structured interview with established inter-rater reliability. The eight alternative scoring methods included the conventional Likert method, which gives the weights 0, 1, 2 and 3 to the four anchor points of the CES-D; the presence method, which gives the weights 0, 1, 1 and 1, respectively; the GHQ method, which gives the weights 0, 0, 1 and 1, respectively; the persistence method, which gives the weights 0, 0, 0 and 1, respectively; 10-item version, 5-item version, single-item version and the algorithmic method. On the basis of the receiver operating characteristic (ROC) analyses, it was found that the traditional Likert scoring method of the full CES-D performed best in detecting major depressive episodes among first-visit psychiatric patients. The presence method, the GHQ method and the 10-item version appeared to have a similar ability. The persistence method, the 5-item version and the single-item version resulted in significantly worse performance.
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Affiliation(s)
- T Furukawa
- Department of Psychiatry, Nagoya City University School of Medicine, Japan
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Nishimura M, Kumamoto Y, Koroku M, Tsunekawa T, Hiroe T, Hayashi K, Matsukawa M, Nishijima N, Minami K, Yoshio H. [Epidemiological study on Chlamydia trachomatis infection in pregnant housewives and investigation on its influence on outcome of pregnancy and on their newborns]. Kansenshogaku Zasshi 1990; 64:179-87. [PMID: 2338504 DOI: 10.11150/kansenshogakuzasshi1970.64.179] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
We surveyed Chlamydial infection with Chlamydiazyme for 3010 pregnant housewives in Hokkaido. Four hundred and fourty six out of the 3010 pregnant housewives were also be retrospectively investigated for the influence of C. trachomatis on outcome of pregnancy and on their newborns. The results were as follows. 1) Of the 3010 pregnant housewives, 217 (7.2%) were C. trachomatis-antigen positive, when their endocervical specimens were tested. There was no difference in the positive rate of C. trachomatis among the six cities where our investigation was performed. 2) A high C. trachomatis-positive rate (21.9%) was achieved in the pregnant teen-aged housewives with a significant decrease as age increased. 3) As for placenta previa, threatened abortion, preterm delivery and small for date infants, the incidence was higher in the untreated C. trachomatis positive group than in the C. trachomatis negative group. 4) The weeks of gestation and birth weight of newborns in the untreated C. trachomatis positive group were significantly lower than those of the C. trachomatis negative group. 5) No statistical significance was found in the incidence of premature rupture of membrane, fatal distress, spontaneous abortion nor postpartum fever between the C. trachomatis negative group and the untreated C. trachomatis positive group. These results suggest that Chlamydial infection in pregnant housewives is widely spread in Hokkaido and gives some disadvantage to pregnancy outcome and newborns. Consequently, Chlamydial infection in pregnant women must be appropriately diagnosed and treated in the early stage of pregnancy.
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Affiliation(s)
- M Nishimura
- Department of Urology, Sapporo Medical College
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Hiroe T, Krempl E. The viscoplasticity theory based on overstress applied to the analysis of beams under monotonic and cyclic creep loading. Nuclear Engineering and Design 1984. [DOI: 10.1016/0029-5493(84)90174-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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