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Hori H, Fukushima H, Nagayoshi T, Ishikawa R, Zhuo M, Yoshida F, Kunugi H, Okamoto K, Kim Y, Kida S. Fear memory regulation by the cAMP signaling pathway as an index of reexperiencing symptoms in posttraumatic stress disorder. Mol Psychiatry 2024:10.1038/s41380-024-02453-4. [PMID: 38409596 DOI: 10.1038/s41380-024-02453-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 01/11/2024] [Accepted: 01/23/2024] [Indexed: 02/28/2024]
Abstract
Posttraumatic stress disorder (PTSD) is a psychiatric disorder associated with traumatic memory, yet its etiology remains unclear. Reexperiencing symptoms are specific to PTSD compared to other anxiety-related disorders. Importantly, reexperiencing can be mimicked by retrieval-related events of fear memory in animal models of traumatic memory. Recent studies revealed candidate PTSD-associated genes that were related to the cyclic adenosine monophosphate (cAMP) signaling pathway. Here, we demonstrate the tight linkage between facilitated cAMP signaling and PTSD by analyzing loss- and gain-of-cAMP signaling effects on fear memory in mice and the transcriptomes of fear memory-activated mice and female PTSD patients with reexperiencing symptoms. Pharmacological and optogenetic upregulation or downregulation of cAMP signaling transduction enhanced or impaired, respectively, the retrieval and subsequent maintenance of fear memory in mice. In line with these observations, integrative mouse and human transcriptome analysis revealed the reduced mRNA expression of phosphodiesterase 4B (PDE4B), an enzyme that degrades cAMP, in the peripheral blood of PTSD patients showing more severe reexperiencing symptoms and the mouse hippocampus after fear memory retrieval. Importantly, more severe reexperiencing symptoms and lower PDE4B mRNA levels were correlated with decreased DNA methylation of a locus within PDE4B, suggesting the involvement of methylation in the mechanism of PTSD. These findings raise the possibility that the facilitation of cAMP signaling mediating the downregulation of PDE4B expression enhances traumatic memory, thereby playing a key role in the reexperiencing symptoms of PTSD patients as a functional index of these symptoms.
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Affiliation(s)
- Hiroaki Hori
- Department of Behavioral Medicine, National Institute of Mental Health, National Center of Neurology and Psychiatry, Tokyo, 187-8553, Japan.
| | - Hotaka Fukushima
- Department of Bioscience, Graduate School of Life Sciences, Tokyo University of Agriculture, Tokyo, 156-8502, Japan
| | - Taikai Nagayoshi
- Graduate School of Agriculture and Life Sciences, The University of Tokyo, Tokyo, 113-8657, Japan
| | - Rie Ishikawa
- Graduate School of Agriculture and Life Sciences, The University of Tokyo, Tokyo, 113-8657, Japan
| | - Min Zhuo
- Department of Physiology, Faculty of Medicine, University of Toronto, 1 King's College Circle, Toronto, ON, Canada
| | - Fuyuko Yoshida
- Department of Behavioral Medicine, National Institute of Mental Health, National Center of Neurology and Psychiatry, Tokyo, 187-8553, Japan
- Department of Mental Disorder Research, National Institute of Neuroscience, National Center of Neurology and Psychiatry, Tokyo, 187-8502, Japan
| | - Hiroshi Kunugi
- Department of Mental Disorder Research, National Institute of Neuroscience, National Center of Neurology and Psychiatry, Tokyo, 187-8502, Japan
- Department of Psychiatry, Teikyo University School of Medicine, Tokyo, 173-8605, Japan
| | - Kenichi Okamoto
- Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, 600 University Avenue, Toronto, ON, Canada
- Department of Molecular Genetics, Faculty of Medicine, University of Toronto, 1 King's College Circle, Toronto, ON, Canada
| | - Yoshiharu Kim
- Department of Behavioral Medicine, National Institute of Mental Health, National Center of Neurology and Psychiatry, Tokyo, 187-8553, Japan.
| | - Satoshi Kida
- Graduate School of Agriculture and Life Sciences, The University of Tokyo, Tokyo, 113-8657, Japan.
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Nagayoshi T, Ishikawa R, Kida S. Anterior cingulate cortex projections to the dorsal hippocampus positively control the expression of contextual fear generalization. Learn Mem 2022; 29:77-82. [PMID: 35169046 PMCID: PMC8852225 DOI: 10.1101/lm.053440.121] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Accepted: 01/05/2022] [Indexed: 11/25/2022]
Abstract
Fear generalization is one of the main symptoms of posttraumatic stress disorder. In rodents, the anterior cingulate cortex (ACC) and the hippocampus (HPC) control the expression of contextual fear memory generalization. Consistently, ACC projections to the ventral HPC contribute to contextual fear generalization. However, the roles of ACC projections to the dorsal HPC (dHPC) in fear generalization are unclear, although the dHPC is required for the retrieval of recent contextual fear memory. To investigate these roles, we examined the effects of optogenetic silencing and stimulation of these projections in contextual fear generalization at the recent and remote time points. Mice underwent contextual fear conditioning and, at 1 or 28 d later, were tested in the conditioned chamber, a novel context, or a similar context. Optogenetic activation of these projections induced higher freezing in mice in the novel context compared with the control group at a recent (1-d), but not remote (28-d), time point following conditioning, suggesting that activation of this pathway enhances contextual fear generalization. In contrast, optogenetic inactivation of these projections induced lower freezing in the similar context compared with the control group at a recent, but not remote, time point, suggesting that inactivation of this pathway impaired contextual fear generalization. These observations suggest that the ACC to the dHPC projections positively regulate the expression of contextual fear generalization when contextual fear memory is recent.
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Affiliation(s)
- Taikai Nagayoshi
- Graduate School of Agriculture and Life Sciences, The University of Tokyo, Bunkyo-ku, Tokyo 113-8657, Japan
| | - Rie Ishikawa
- Graduate School of Agriculture and Life Sciences, The University of Tokyo, Bunkyo-ku, Tokyo 113-8657, Japan
| | - Satoshi Kida
- Graduate School of Agriculture and Life Sciences, The University of Tokyo, Bunkyo-ku, Tokyo 113-8657, Japan
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3
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Serita T, Miyahara M, Tanimizu T, Takahashi S, Oishi S, Nagayoshi T, Tsuji R, Inoue H, Uehara M, Kida S. Dietary magnesium deficiency impairs hippocampus-dependent memories without changes in the spine density and morphology of hippocampal neurons in mice. Brain Res Bull 2019; 144:149-157. [DOI: 10.1016/j.brainresbull.2018.11.019] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Revised: 11/16/2018] [Accepted: 11/24/2018] [Indexed: 11/26/2022]
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Nagayoshi T, Isoda K, Mamiya N, Kida S. Hippocampal calpain is required for the consolidation and reconsolidation but not extinction of contextual fear memory. Mol Brain 2017; 10:61. [PMID: 29258546 PMCID: PMC5735908 DOI: 10.1186/s13041-017-0341-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2017] [Accepted: 12/04/2017] [Indexed: 11/10/2022] Open
Abstract
Memory consolidation, reconsolidation, and extinction have been shown to share similar molecular signatures, including new gene expression. Calpain is a Ca2+-dependent protease that exerts its effects through the proteolytic cleavage of target proteins. Neuron-specific conditional deletions of calpain 1 and 2 impair long-term potentiation in the hippocampus and spatial learning. Moreover, recent studies have suggested distinct roles of calpain 1 and 2 in synaptic plasticity. However, the role of hippocampal calpain in memory processes, especially memory consolidation, reconsolidation, and extinction, is still unclear. In the current study, we demonstrated the critical roles of hippocampal calpain in the consolidation, reconsolidation, and extinction of contextual fear memory in mice. We examined the effects of pharmacological inhibition of calpain in the hippocampus on these memory processes, using the N-Acetyl-Leu-Leu-norleucinal (ALLN; calpain 1 and 2 inhibitor). Microinfusion of ALLN into the dorsal hippocampus impaired long-term memory (24 h memory) without affecting short-term memory (2 h memory). Similarly, this pharmacological blockade of calpain in the dorsal hippocampus also disrupted reactivated memory but did not affect memory extinction. Importantly, the systemic administration of ALLN inhibited the induction of c-fos in the hippocampus, which is observed when memory is consolidated. Our observations showed that hippocampal calpain is required for the consolidation and reconsolidation of contextual fear memory. Further, the results suggested that calpain contributes to the regulation of new gene expression that is necessary for these memory processes as a regulator of Ca2+-signal transduction pathway.
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Affiliation(s)
- Taikai Nagayoshi
- Department of Bioscience, Faculty of Applied Bioscience, Tokyo University of Agriculture, Tokyo, Japan
| | - Kiichiro Isoda
- Department of Bioscience, Faculty of Applied Bioscience, Tokyo University of Agriculture, Tokyo, Japan
| | - Nori Mamiya
- Department of Bioscience, Faculty of Applied Bioscience, Tokyo University of Agriculture, Tokyo, Japan
| | - Satoshi Kida
- Department of Bioscience, Faculty of Applied Bioscience, Tokyo University of Agriculture, Tokyo, Japan
- Core Research for Evolutional Science and Technology, Japan Science and Technology Agency, Saitama, Japan
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Yabuki A, Endo Y, Sakamoto H, Nagayoshi T, Matsumoto M, Suzuki S. Quantitative assessment of renal cortical echogenicity in clinically normal cats. Anat Histol Embryol 2008; 37:383-6. [PMID: 18513275 DOI: 10.1111/j.1439-0264.2008.00866.x] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
In this study, we assessed the renal cortical echogenicity of clinically normal adult cats by histogram analysis to obtain basic ultrasonographic data. Ultrasound images were taken under the following sets of conditions: (1) high contrast and low gain setting using a convex probe, (2) low contrast and high gain setting using a convex probe, (3) high contrast and low gain setting using a linear probe and (4) low contrast and high gain setting using a linear probe. Echogenicity of the region of interest (ROI) in the right and left renal cortices, liver and spleen was determined by histogram analysis; kidney/spleen (Kid/Sp) and kidney/liver (Kid/Liv) echogenicity ratios were calculated. Kid/Sp and Kid/Liv values varied among different ROI sites in the kidney when obtained using the convex probe, but were constant when obtained using the linear probe. Kid/Sp measured in the middle sites of the kidney showed similar values for the different settings; however, Kid/Liv differed between probes. The present findings suggest that determination of Kid/Sp using a linear probe is a feasible method for quantitative evaluation of renal cortical echogenicity in cats.
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Affiliation(s)
- A Yabuki
- Department of Veterinary Medicine, Kagoshima University, Kagoshima, Japan.
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Noguchi K, Watanabe N, Nagayoshi T, Kanazawa T, Toyoshima S, Shimizu M, Seto H. Role of diffusion-weighted echo-planar MRI in distinguishing between brain brain abscess and tumour: a preliminary report. Neuroradiology 1999; 41:171-4. [PMID: 10206159 DOI: 10.1007/s002340050726] [Citation(s) in RCA: 142] [Impact Index Per Article: 5.7] [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: 12/01/2022]
Abstract
Our purpose was to evaluate diffusion-weighted (DW) echo-planar MRI in differentiating between brain abscess and tumour. We examined two patients with surgically confirmed pyogenic brain abscess and 18 with metastatic brain tumours or high-grade glioma, using a 1.5 T system. The apparent diffusion coefficient (ADC) of each necrotic or solid contrast-enhancing lesion was measured with two different b values (20 and 1200 s/mm2). All capsule-stage brain abscesses (4 lesions) and zones of cerebritis (2 lesions) were identified on high-b-value DWI as markedly high-signal areas of decreased ADC (range, 0.58-0.70 [(10-3 mm2/s; mean, 0.63)]). All cystic or necrotic portions of brain tumours (14 lesions) were identified on high-b-value DWI as low-signal areas of increased ADC (range, 2.20-3.20 [(10-3 mm2/s; mean, 2.70)]). Solid, contrast-enhancing portions of brain tumours (19 lesions) were identified on high-b-value DWI as high-signal areas of sightly decreased or increased ADC (range, 0.77-1.29 [(10-3 mm2/s; mean, 0.94)]). Our preliminary results indicate that DW echo-planar MRI be used for distinguishing between brain abscess and tumour.
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Affiliation(s)
- K Noguchi
- Department of Radiology, Toyama Medical and Pharmaceutical University, Toyama City, Japan
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Noguchi K, Nagayoshi T, Watanabe N, Kanazawa T, Toyoshima S, Morijiri M, Shojaku H, Shimizu M, Seto H. Diffusion-weighted echo-planar MRI of lacunar infarcts. Neuroradiology 1998; 40:448-51. [PMID: 9730345 DOI: 10.1007/s002340050621] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.6] [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: 10/28/2022]
Abstract
We studied 35 patients with lacunar infarcts, using diffusion-weighted echo-planar imaging (DW-EPI) at 1.5 T. The relative apparent diffusion coefficient ratio (ADCR) of each lesion was calculated and lesion conspicuity on DW-EPI was compared to that on images acquired with fast fluid-attenuated inversion recovery and T2-weighted fast spin-echo sequences. Acute small infarcts (within 3 days) were identified with DW-EPI as an area of decreased ADCR (range 0.33-0.87; mean 0.67) and high signal, subacute small infarcts (4-30 days) as a high-signal or isointense areas of decreased or nearly normal ADCR (0.54-0.98; 0.73), and chronic small infarcts (> 30 days) as low- or high-signal areas of nearly normal or increased ADCR (0.97-1.92; 1.32). In three patients, small infarcts of the brain stem in the hyperacute phase (within 6 h) were seen only with DW-EPI. In five patients, fresh small infarcts adjacent to multiple old infarcts could be distinguished only with DW-EPI.
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Affiliation(s)
- K Noguchi
- Department of Radiology, Toyama Medical and Pharmaceutical University, Toyama City, Japan
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Kamisaki Y, Seto H, Nagayoshi T, Kageyama M, Shimizu M, Wu YW, Watanabe N, Kakishita M. Discordant technetium-99m HMPAO and thallium-201 chloride distribution in brain tumors. Radiat Med 1996; 14:155-158. [PMID: 8827811] [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: 05/22/2023]
Abstract
We present four cases of primary brain tumors in which both Tc-99m HMPAO and Tl-201 chloride localized in the tumors, but with discordant distribution. Larger accumulation with Tc-99m HMPAO than Tl-201 chloride was observed in two patients (one astrocytoma and one meningioma). This was related to localization of the tracer in the tumor as well as in the adjacent hyperemic region as compared with the MRI findings. In one patient with pituitary adenoma, Tc-99m HMPAO localized in nearly the entire tumor, similar to the result with Tl-201 chloride. In one patient with astrocytoma, Tc-99m HMPAO showed partial tumor accumulation, less than that shown by Tl-201 chloride. Tc-99m HMPAO uptake by brain tumors does not always reflect the viable tumor burden as compared with the distribution of Tl-201 chloride and MRI or CT findings.
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Affiliation(s)
- Y Kamisaki
- Department of Radiology, Toyama Medical and Pharmaceutical University, Japan
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9
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Nomura K, Seto H, Kamisaki Y, Kageyama M, Nagayoshi T, Kakishita M. Doppler spectral analysis of blood flow velocities in common femoral artery: age-related changes in healthy subjects and characteristics of abnormal hemodynamics in obstructive arterial disease. Radiat Med 1996; 14:13-17. [PMID: 8725372] [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: 05/22/2023]
Abstract
Flow velocity patterns in the common femoral artery were analyzed in 66 lower extremities of 33 healthy subjects and 18 lower extremities of 12 patients with arteriosclerosis obliterans (ASO) by Doppler ultra-sonography. In a phantom study, Doppler flow velocity showed a close correlation with actual flow velocity: y = 1.02x - 1.22 (r = 0.995). In clinical trials, 33 healthy subjects were classified into three groups: group I (20-40 years), group II (41-60 years) and group III (61-80 years). Starting time of acceleration (STA) was shortened as age increased. Peak reverse velocity (PRV), maximum deceleration rate (MDR), and pulsatility index (PI) were significantly decreased in group III as compared with groups I and II. In patients with ASO, STA was prolonged, and PFV, PRV, MAR, MDR, PI, VSA, and FV were significantly decreased (p < 0.001) as compared with healthy control group III. Consequently, marked characteristic changes such as flattening of curves and disappearance of reverse flow in Doppler flow wave-form were observed. These data obtained by Doppler ultrasonography are thought to be useful for the early diagnosis and follow-up of patients with ASO.
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Affiliation(s)
- K Nomura
- Department of Radiology, Toyama Medical and Pharmaceutical University, Japan
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Seto H, Kageyama M, Wu YW, Shimizu M, Nagayoshi T, Watanabe N, Nomura K, Kakishita M. Sequential subtraction scintigraphy with 99mTc-RBC for the early detection of gastrointestinal bleeding. Ann Nucl Med 1995; 9:203-8. [PMID: 8770287 DOI: 10.1007/bf03168402] [Citation(s) in RCA: 6] [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: 02/02/2023]
Abstract
To improve the early detectability of gastrointestinal (GI) bleeding, we have developed a new subtraction scintigraphic technique using in vivo labeled 99mTc red blood cells (RBC). Use of this new sequential subtraction method every 5 min makes it possible to detect early the bleeding site and calculate the bleeding rate. In phantom experiments, focal activity was detected on subtraction images at pump rates of more than 0.20 ml/min at any urethane thickness, but was negative on conventional scintigrams. The calculated pump rate by the subtraction method correlated well with the actual syringe pump rate (y = 1.07x - 0.02, r = 0.99, p < 0.01) in the case of an 8-cm urethane board as an abdominal wall. Twenty-four of 50 patients with suspected GI bleeding were confirmed to be positive within 24 hr. The subtraction method showed 15 true positive and 2 false positive cases within 60 min. On the other hand, the conventional scintigraphic method showed only 7 true positive and 1 false positive cases. Sensitivity of the subtraction method was 62.5%, which was significantly higher (p < 0.05) than that of the conventional scintigraphic method (29.2%). These results suggest that sequential subtraction scintigraphy with 99mTc-RBC is an effective method for the early detection of GI bleeding and shortening the examination time as compared with conventional scintigraphy.
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Affiliation(s)
- H Seto
- Department of Radiology, Toyama Medical and Pharmaceutical University, Japan
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11
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Shimizu M, Seto H, Kageyama M, Wu YW, Nagayoshi T, Kamisaki Y, Morijiri M, Watanabe N, Kakishita M. The value of combined 99mTc-Sn-colloid and 99mTc-RBC scintigraphy in the evaluation of a wandering spleen. Ann Nucl Med 1995; 9:145-7. [PMID: 8534588 DOI: 10.1007/bf03165042] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Wandering spleen is the term commonly applied to splenic hypermobility that results from laxity or maldevelopment of its suspensory ligaments. It comes to medical attention usually as an abdominal mass, or when the spleen undergoes torsion. Diagnosis on clinical grounds alone is rarely made, and ultrasonography, CT and MRI findings have no specific characteristics for this condition. 99mTc-labeled colloid taken up by the spleen may provide a specific diagnosis. We report a case of wandering spleen, in which the preoperative diagnosis was made on the basis of sequential liver-spleen scintigraphy with 99mTc-Sn-colloid and blood-pool scintigraphy with 99mTc-RBC. This is a rare case, in which hypermobility was assessed by sequential 99mTc-Sn-colloid scintigraphy, and to our knowledge, is the first case in which 99mTc-RBC scintigraphy provided useful information on splenic blood volume and its location.
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Affiliation(s)
- M Shimizu
- Department of Radiology, Faculty of Medicine, Toyama Medical and Pharmaceutical University, Japan
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Seto H, Watanabe N, Kageyama M, Shimizu M, Nagayoshi T, Kamisaki Y, Kakishita M. Concurrent detection of cholecystocolic fistula and hepatic abscess by hepatobiliary scintigraphy. Ann Nucl Med 1995; 9:93-5. [PMID: 7662496 DOI: 10.1007/bf03164973] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
We report the case of a 58-year-old male with cholecystocolic fistula and hepatic abscess that were not diagnosed by routine radiologic examinations, but concurrently detected by hepatobiliary scintigraphy with 99mTc-PMT, and confirmed at operation. Hepatobiliary scintigraphy is noninvasive and useful in the detection of a biliary enteric fistula and lesions about related organs. Concurrent detection of cholecystocolic fistula and hepatic abscess on hepatobiliary series is of great clinical value in planning surgical intervention.
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Affiliation(s)
- H Seto
- Department of Radiology, Toyama Medical and Pharmaceutical University, Japan
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Watanabe N, Seto H, Ishiki M, Shimizu M, Kageyama M, Wu YW, Nagayoshi T, Kamisaki Y, Kakishita M. I-123 MIBG imaging of metastatic carcinoid tumor from the rectum. Clin Nucl Med 1995; 20:357-60. [PMID: 7788995 DOI: 10.1097/00003072-199504000-00014] [Citation(s) in RCA: 8] [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: 01/27/2023]
Abstract
I-131 MIBG, a specific radiopharmaceutical agent for scintigraphic imaging and treatment of pheochromocytoma and neuroblastoma may be useful for detection of apudomas. Scintigraphy with I-123 radiolabeled MIBG was performed in a patient with metastatic carcinoid tumor from the rectum. I-123 MIBG scintigraphic findings showed multiple areas of abnormal tumor uptake of hepatic and bone metastases from the rectal carcinoid. Bone scintigraphy demonstrated multiple metastatic lesions. Computed tomography revealed multiple solid tumors of the liver. This report describes accumulation of I-123 MIBG in the liver and bone metastases from the rectal carcinoid. Radioiodine MIBG scintigraphy may be useful for detecting metastatic lesions, for evaluating postoperative recurrence, and also for the treatment of the carcinoid tumor.
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Affiliation(s)
- N Watanabe
- Department of Radiology, Toyama Medical and Pharmaceutical University, Japan
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Wu YW, Seto H, Shimizu M, Kageyama M, Nagayoshi T, Watanabe N, Kakishita M. Renal cell carcinoma extension into the inferior vena cava detected by Ga-67 citrate imaging. Clin Nucl Med 1995; 20:377-8. [PMID: 7789005 DOI: 10.1097/00003072-199504000-00024] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Y W Wu
- Department of Radiology, Toyama Medical and Pharmaceutical University, Japan
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15
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Shimizu M, Seto H, Kageyama M, Wu YW, Nagayoshi T, Kamisaki Y, Morijiri M, Nomura K, Watanabe N, Kakishita M. [Assessment of tumor viability by 201Tl SPECT in VX-2 tumor-bearing rabbits after irradiation: comparison with X-ray CT and pathohistologic findings]. Kaku Igaku 1995; 32:41-9. [PMID: 7897867] [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: 01/27/2023]
Abstract
In order to evaluate 201Tl SPECT for the assessment of tumor viability after radiation therapy. Twenty rabbits were implanted with VX-2 tumor in the left femoral muscles and were classified into four groups as follows: normal control group (N), 20 Gy irradiated response group (A), 20 Gy irradiated non-response group (B), and 40 Gy irradiated group (C). Eight days after implantation, 201Tl SPECT and CT studies were performed to assess the changes in 201Tl uptake and tumor volume at 0, 1, 2, 3, and 4 weeks after single irradiation. Histologic specimens were also taken. In group N tumors continued to increase in volume, but 201Tl uptake showed a steady decrease after 2 weeks. In group A tumors continued to increase in volume, but 201Tl uptake showed a transient decrease at 2 weeks, then a steady increase. In group B tumors showed a transient increase in volume at 2 weeks, then a continuous decrease, but 201Tl uptake showed a continuous decrease throughout the study. In group C there was a continuous decrease both in volume and 201Tl uptake with the later more prominent. 201Tl uptake was decreased earlier than tumor volume both in group B and C, at one week that was significant (p < 0.01). 201Tl uptake by tumor reflects the burden of viable tumor on histology; therefore 201Tl SPECT is of great use in assessing the therapeutic effects on tumors.
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Affiliation(s)
- M Shimizu
- Department of Radiology, Faculty of Medicine, Toyama Medical and Pharmaceutical University
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Seto H, Kageyama M, Shimizu M, Nagayoshi T, Futatsuya R, Kakishita M. Effect of ionic and nonionic contrast media on regional distribution of thallium-201 in rabbits. Radiat Med 1995; 13:19-22. [PMID: 7597199] [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: 01/26/2023]
Abstract
Cardiac output is effectively redistributed to each part of the body by regional changes in vascular resistance. Thallium-201 distribution reflects the fractional distribution of cardiac output and parallels regional blood flow. The side effects of iodinated contrast media in different organs have been well documented in animal experiments and clinical studies. However, no simultaneous assessment of regional blood flow change in each part of the body after the administration of contrast media has been reported. Using a double-dose thallium-201 method, we investigated the effect of contrast media on the regional distribution of thallium-201 in each organ as an estimate of regional blood flow change in rabbits. The distribution of 201T1 and 99mTc-MAA was similar in the heart, spleen, kidneys, and leg muscles in the control animals (r = 0.99). The regional distribution of thallium-201 significantly increased in the heart and leg muscle, but decreased in the liver in the nonionic (Iohexol) and ionic (Iothalamate) contrast medium groups as compared with the control group. There were no significant changes in the kidneys or intestine in these three groups in our study. The intravenous infusion of contrast media in rabbits causes uneven redistribution of regional blood flow in the heart, leg muscle and liver. These changes are more prominent in the ionic contrast medium group.
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Affiliation(s)
- H Seto
- Department of Radiology, Toyama Medical and Pharmaceutical University, Japan
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Morijiri M, Seto H, Kageyama M, Shimizu M, Nagayoshi T, Watanabe N, Kakishita M. Assessment of peanut aspiration by MRI and lung perfusion scintigram. J Comput Assist Tomogr 1994; 18:836-8. [PMID: 8089341 DOI: 10.1097/00004728-199409000-00030] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- M Morijiri
- Department of Radiology, Toyama Medical and Pharmaceutical University, Japan
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18
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Kageyama M, Seto H, Shimizu M, Nagayoshi T, Watanabe N, Kamei T, Kakishita M. Thallium-201 single photon emission computed tomography in the evaluation of thymic carcinoma. Radiat Med 1994; 12:237-9. [PMID: 7863029] [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: 01/27/2023]
Abstract
Thymic carcinoma is a rare mediastinal tumor that is distinguished from malignant thymoma without cytologic atypia. We present two cases of thymic carcinoma with high uptake of Tl-201. Absence of Tl-201 uptake in a residual mass on the CT scan indicated a lack of tumor viability after the completion of therapy, which was verified by sequential needle biopsy. Tl-201 SPECT seems to be useful both in detecting thymic carcinoma and in assessing the therapeutic effect.
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Affiliation(s)
- M Kageyama
- Department of Radiology, Toyama Medical and Pharmaceutical University, Japan
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19
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Humphries M, Nagayoshi T, Sheils D, Humphries P, Uitto J. Human nidogen gene: identification of multiple RFLP and exclusion as candidate gene in a family with epidermolysis bullosa (EBS2) with evidence for linkage to chromosome 1. J Invest Dermatol 1990; 95:568-70. [PMID: 1977802 DOI: 10.1111/1523-1747.ep12505546] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Epidermolysis bullosa (EB) is a group of heritable blistering diseases affecting the dermal-epidermal basement membrane zone. We have recently provided evidence for genetic linkage of the molecular defect in a large family with dominant simplex, generalized (Koebner) type of EB (EBS2) to the long arm of chromosome 1. Because human nidogen gene has been mapped to chromosomal locus 1q43 in the human genome, we examined the possibility that nidogen, an integral component of all basement membranes, would be the candidate gene in this family of EBS2. Restriction fragment-length polymorphism, which was shown with several restriction endonucleases to be present within the nidogen gene, was utilized for linkage analyses. The results using an informative PvuII polymorphism as a marker of allelic inheritance supported exclusion of the EBS2 locus from approximately 10 cM in either side of the nidogen locus, when Lod score of -2.0 was taken as the limit of exclusion. This study demonstrates the feasibility of examining other families with EB for possible linkage to the nidogen locus.
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Affiliation(s)
- M Humphries
- Department of Genetics, Trinity College, Dublin, Ireland
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20
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Abstract
Laminin, an integral component of basement membranes, consists of three subunit polypeptides, A, B1, and B2 chains. We have recently isolated cDNAs corresponding to human laminin A chain. These cDNAs were utilized for chromosomal in situ hybridizations to establish the genomic location of the laminin A chain gene. Metaphase chromosomes of PHA-stimulated human peripheral blood leukocytes were examined by in situ hybridization with 3H-labeled cDNAs, and the chromosomes were identified by R-banding (fluorochrome-photolysis-Giemsa method). The results indicated that the human laminin A chain is at locus 18p11.3. Since human laminin B1 and B2 chain genes have been previously mapped to chromosomes 7 and 1, respectively, the results indicate that genes encoding human laminin chains reside in separate chromosomes.
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Affiliation(s)
- T Nagayoshi
- Department of Dermatology, Jefferson Medical College, Thomas Jefferson University, Philadelphia, Pennsylvania
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21
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Nagayoshi T, Sanborn D, Hickok NJ, Olsen DR, Fazio MJ, Chu ML, Knowlton R, Mann K, Deutzmann R, Timpl R. Human nidogen: complete amino acid sequence and structural domains deduced from cDNAs, and evidence for polymorphism of the gene. DNA 1989; 8:581-94. [PMID: 2574658 DOI: 10.1089/dna.1989.8.581] [Citation(s) in RCA: 48] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Nidogen, a multifunctional glycoprotein, is an integral part of all basement membranes. In this study, human nidogen cDNAs were isolated and characterized from human placental and skin fibroblast cDNA libraries by hybridization with a mouse nidogen cDNA probe. Six overlapping clones covering 4.9 kb were characterized. The composite cDNA contained a 3,741-nucleotide open reading frame which coded for a 1,247-amino-acid peptide that included a hydrophobic signal sequence. The deduced amino acid sequence contains seven epidermal growth factor-like cysteine-rich repeats, one possible tyrosine O-sulfation site, and a possible N-glycosylation site. The tripeptide sequence -Arg-Gly-Asp- (RGD), a potential cell attachment site, was also present. Human and mouse nidogen sequences were 84% homologous at the nucleotide level and 85% homologous at the deduced amino acid level. Southern blotting of human leukocyte DNA from 23 individuals indicated that nidogen probably is a single-copy gene and shows multiple restriction fragment length polymorphisms when cleaved with Eco RI, Pvu II, Taq I, and Msp I. In particular, digestions with Pvu II revealed polymorphism in four discrete DNA fragments, which could be discriminated by hybridizations with nidogen subclones. One of the polymorphisms revealed an allelic frequency of 0.52/0.48. Thus, human nidogen gene displays RFLPs which provide analytical tools to establish genetic linkage between the nidogen gene and a clinical phenotype.
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Affiliation(s)
- T Nagayoshi
- Department of Dermatology, Jefferson Medical College, Thomas Jefferson University, Philadelphia, PA 19107
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22
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Nagayoshi T. [Nursing re-evaluation through records. Extraction of problems in nursing]. Kurinikaru Sutadi 1989; 10:822-5. [PMID: 2634196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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23
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Olsen DR, Nagayoshi T, Fazio M, Mattei MG, Passage E, Weil D, Timpl R, Chu ML, Uitto J. Human nidogen: cDNA cloning, cellular expression, and mapping of the gene to chromosome Iq43. Am J Hum Genet 1989; 44:876-85. [PMID: 2471408 PMCID: PMC1715653] [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] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
A human placental lambda gt11 expression cDNA library was screened for nidogen cDNAs by hybridizations with a heterologous mouse nidogen cDNA. A total of four positive overlapping clones were identified, and the sizes of the inserts were shown to vary from 0.8 to 2.8 kb. Nucleotide sequencing of the human cDNAs revealed that the largest clone, cHPN-16, contained both a 5' open reading frame encoding 582 amino acids and a 3' untranslated region of 1,063 nucleotides. Comparison of human cDNA sequences with mouse nidogen sequences revealed 84% identity on the nucleotide level and 88% identity with the deduced amino acid sequence. The deduced amino acid sequence of the human cDNAs revealed the presence of cysteine-rich epidermal growth factor-like repeats and the sequence Arg-Gly-Asp (RGD), a potential cell binding site, two features previously identified in mouse nidogen. The sequence Asn-Pro-Ser, a consensus sequence for N-linked glycosylation, was also noted. The newly isolated human cDNAs were utilized to analyze the expression of the nidogen gene by cultured human cells. Northern hybridizations revealed a single mRNA transcript of approximately 6.0 kb in human skin fibroblast and in HT 1080 fibrosarcoma cell cultures. However, the human choriocarcinoma cell line JEG-3, which expressed laminin genes, did not contain detectable levels of nidogen mRNAs. Quantitation of the relative nidogen mRNA abundance in HT 1080 fibrosarcoma cells indicated that nidogen mRNA levels were approximately the same as those for the laminin B2 chain. Finally, one of the nidogen cDNAs was used to map the nidogen gene onto locus q43 of chromosome 1.
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Affiliation(s)
- D R Olsen
- Department of Dermatology, Jefferson Medical College, Thomas Jefferson University, Philadelphia, PA 19107
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24
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Olsen D, Nagayoshi T, Fazio M, Peltonen J, Jaakkola S, Sanborn D, Sasaki T, Kuivaniemi H, Chu ML, Deutzmann R. Human laminin: cloning and sequence analysis of cDNAs encoding A, B1 and B2 chains, and expression of the corresponding genes in human skin and cultured cells. J Transl Med 1989; 60:772-82. [PMID: 2733383] [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] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
A human placental lambdagt11 expression cDNA library was probed for laminin cDNAs by a combination of immunoscreening using polyclonal anti-human laminin antibody, and plaque hybridizations using a mouse laminin A chain cDNA. A total of 36 recombinant clones were isolated and characterized. Northern blot hybridizations with poly(A)+RNA, isolated from cultured human skin fibroblasts, revealed hybridization either to (a) a single 10 kb transcript consistent with A chain; (b) a single 5.7 kb transcript consistent with B1 chain; or (c) polymorphic 5.6 and 8.2 kb transcripts consistent with B2 chain of human laminin. Nucleotide sequencing of representative cDNA clones (approximately 2.5 kb in size) confirmed that these three groups of cDNAs encoded C-terminal sequences of laminin A, B1 and B2 chains, respectively. Deduced amino acid sequences for both B1 and B2 chains contained epidermal growth factor-like sequences and alpha-helical heptad repeats, as found previously for mouse laminin. Partial laminin A chain cDNA encoded 680 amino acid residues characterized by several internal repeats. This portion of the peptide accounted for a large part of the globular domain (fragment 3), the whole length of a second (T2) and portions of a third (T1) globular domain. The human A chain also contained an Arg-Gly-Asp sequence, a potential cell-binding site, which is not found in the same segment of mouse laminin. The newly isolated cDNAs were also utilized to analyze expression of laminin mRNAs by cultured human cells and tissues. The results demonstrated that the laminin A, B1, and B2 chain genes were expressed in an uncoordinate manner in both cultured cells and tissues, with a particularly low level of the A chain mRNA being present.
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Affiliation(s)
- D Olsen
- Department of Dermatology, Jefferson Medical College, Philadelphia, Pennsylvania
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25
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Koitabashi K, Nagayoshi T. [Overcoming the shortcomings of nursing records]. Kurinikaru Sutadi 1989; 10:374-5. [PMID: 2761314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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26
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Morito F, Ohta A, Kaneoka H, Nagayoshi T, Hilda M, Yamaguchi M. Genetic analysis of systemic lupus erythematosus: 1. Detection of disease-associated variant proteins by two-dimensional gel electrophoresis. Clin Chem 1988. [DOI: 10.1093/clinchem/34.4.700] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Abstract
Various genetic studies indicate that development of systemic lupus erythematosus (SLE) is regulated by the mode of multifactorial inheritance, i.e., by the overall effect of polygenes and environmental factors. To elucidate some variant genes involved in the polygenic system responsible for onset of SLE, we resolved and measured the protein components of lymphocytes and sera from inactive-SLE patients, their relatives, and normal controls, using two-dimensional gel electrophoresis. Intercomparison of polypeptide patterns between patients and controls revealed three major variations, two detected in lymphocytes and one in sera. These variations were present in 66-82% of the patients, in 20-36% of the control group, and in 41-64% of the relatives. In addition, nearly half of SLE patients, but only one of 19 normal controls, possessed all three SLE-associated traits, suggesting that these variant proteins may reflect in part the genetic factors contributing to development of SLE.
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Affiliation(s)
- F Morito
- Department of Internal Medicine, Saga Medical School, Japan
| | - A Ohta
- Department of Internal Medicine, Saga Medical School, Japan
| | - H Kaneoka
- Department of Internal Medicine, Saga Medical School, Japan
| | - T Nagayoshi
- Department of Internal Medicine, Saga Medical School, Japan
| | - M Hilda
- Department of Internal Medicine, Saga Medical School, Japan
| | - M Yamaguchi
- Department of Internal Medicine, Saga Medical School, Japan
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27
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Morito F, Ohta A, Kaneoka H, Nagayoshi T, Hilda M, Yamaguchi M. Genetic analysis of systemic lupus erythematosus: 1. Detection of disease-associated variant proteins by two-dimensional gel electrophoresis. Clin Chem 1988; 34:700-4. [PMID: 3359604] [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: 01/05/2023]
Abstract
Various genetic studies indicate that development of systemic lupus erythematosus (SLE) is regulated by the mode of multifactorial inheritance, i.e., by the overall effect of polygenes and environmental factors. To elucidate some variant genes involved in the polygenic system responsible for onset of SLE, we resolved and measured the protein components of lymphocytes and sera from inactive-SLE patients, their relatives, and normal controls, using two-dimensional gel electrophoresis. Intercomparison of polypeptide patterns between patients and controls revealed three major variations, two detected in lymphocytes and one in sera. These variations were present in 66-82% of the patients, in 20-36% of the control group, and in 41-64% of the relatives. In addition, nearly half of SLE patients, but only one of 19 normal controls, possessed all three SLE-associated traits, suggesting that these variant proteins may reflect in part the genetic factors contributing to development of SLE.
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Affiliation(s)
- F Morito
- Department of Internal Medicine, Saga Medical School, Japan
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28
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Ohta A, Yamaguchi M, Kaneoka H, Nagayoshi T, Hiida M. Adult Still's disease: review of 228 cases from the literature. J Rheumatol 1987; 14:1139-46. [PMID: 3325642] [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: 01/05/2023]
Abstract
To clarify the clinical pictures of adult Still's disease, 228 cases reported in the past 15 years since Bywaters' first description were reviewed. These included our 9 new cases and an additional 25 cases from the Japanese literature, none of which had been described in previous English reviews. Most of the patients with long followup showed frequent recurrences. About one third developed deforming arthritis with ankylosis. There were 6 deaths. Of interest was the remarkably elevated levels of serum ferritin and prostaglandin E1 in some patients.
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Affiliation(s)
- A Ohta
- Department of Internal Medicine, Saga Medical School, Japan
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29
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Ohta A, Kaneoka H, Nagayoshi T, Hiida M, Sano M, Yoshihara M, Motomura M, Ohmori K, Matsuzaki Y, Matsui Y. [Nine cases of adult-onset Still's disease: diagnostic problem and comparison of clinical features between Japanese and foreign cases]. Nihon Naika Gakkai Zasshi 1987; 76:1825-30. [PMID: 3330121 DOI: 10.2169/naika.76.1825] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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30
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Nagayoshi T, Morito F, Kaneoka H, Yamaguchi M. Some Epstein-Barr virus-transformed B lymphoblastoid cell lines have an altered structure around the mixed lymphocyte culture-inducing domain on DR molecules. Fukuoka Igaku Zasshi 1986; 77:287-92. [PMID: 3017826] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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31
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Nagayoshi T. [Study of functional domain structures on human DR determinants with mouse hybridoma antibody Tyn B1]. Fukuoka Igaku Zasshi 1985; 76:306-16. [PMID: 2414196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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32
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Yoshimoto M, Takayanagi T, Nagayoshi T, Baba T, Tsuji Y. [Case of adrenal insufficiency, nonspecific myopathy, psychomotor retardation and glyceroluria--glycerol kinase deficiency?]. No To Hattatsu 1984; 16:328-9. [PMID: 6091705] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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33
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Nagayoshi T. [Information in nursing care]. Kango 1983; 35:113-33. [PMID: 6563222] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/05/2023]
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34
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Chino S, Kaizuka M, Nagayoshi T. Clinical nursing instruction between basic nursing and nursing of adults. Kango Tenbo 1983; 8:63-9. [PMID: 6556422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/05/2023]
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35
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Chino S, Kaizuke M, Nagayoshi T. [Clinical nursing instruction between basic nursing and adult nursing]. Kango Tenbo 1983; 8:639-49. [PMID: 6557269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/05/2023]
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36
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Nagayoshi T. [Thoughts on the basic theory of nursing]. Kango Kyoiku 1982; 23:172-6. [PMID: 6918587] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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37
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Nagayoshi T. [Suggestion on the nursing study reflected in the current curriculum]. Kango Kyoiku 1977; 18:743-50. [PMID: 244600] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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38
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Nagayoshi T. [Problems in development of nursing education]. Kango 1974; 26:102-7. [PMID: 4498616] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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39
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Anmo T, Hayashi H, Kouchiwa S, Nagayoshi T. [Studies on antifungal substances. IV. Syntheses and antimicrobial effects of 5-methylsulfonyl-2-furaldehyde and its derivatives]. YAKUGAKU ZASSHI 1966; 86:735-7. [PMID: 6010911 DOI: 10.1248/yakushi1947.86.8_735] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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40
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