273 results on '"Kurihara, T"'
Search Results
2. [Strategy for the development of small-molecule antidepressant targeting PAC1 receptor].
- Author
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Takasaki I, Hayata-Takano A, Shintani Y, Kurihara T, and Hashimoto H
- Subjects
- Animals, Humans, Drug Development, Depressive Disorder, Major drug therapy, Depressive Disorder, Major metabolism, Molecular Targeted Therapy, Antidepressive Agents pharmacology, Antidepressive Agents therapeutic use, Receptors, Pituitary Adenylate Cyclase-Activating Polypeptide, Type I metabolism
- Abstract
Major depressive disorder (MDD) is a psychiatric disorder that affects more than 300 million people worldwide and has a serious impact on society. Conventional antidepressants targeting monoamines in the brain based on the monoamine hypothesis are known to take a prolonged time to be effective or less effective in 30% of MDD patients. Hence, there is a need to develop antidepressants that are effective against treatment-resistant depression and have a new mechanism different from the monoamine hypothesis. An increasing number of research groups including us have been establishing that pituitary adenylate cyclase-activating polypeptide (PACAP) and one of its receptors, PAC1 receptor, are closely related to the etiology of stress-related diseases such as MDD. Therefore, it is strongly suggested that the PAC1 receptor is a promising target in the treatment of psychiatric disorders. We developed a novel, non-peptidic, small-molecule, high-affinity PAC1 receptor antagonists and conducted behavioral pharmacology experiments in mice to characterize a novel PAC1 receptor antagonist as a new option for MDD therapy. The results show that our novel PAC1 receptor antagonist has the potential to be a new antidepressant with a high safety profile. In this review, we would like to present the background of developing our novel PAC1 receptor antagonist and its effects on mouse models of acute stress.
- Published
- 2024
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3. [Possible involvement of FFAR1 signaling in mouse emotional behaviors through the regulation of brain monoamine releases].
- Author
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Kurihara T
- Subjects
- Animals, Mice, Brain metabolism, Dopamine, Receptors, G-Protein-Coupled agonists, Serotonin metabolism, Signal Transduction, Cocaine pharmacology, Neuralgia drug therapy, Neuralgia metabolism
- Abstract
The free fatty acid receptor 1 (FFAR1) is suggested to function as a G protein-coupled receptor for medium- to long-chain free fatty acids. We have previously shown that FFAR1 signaling pathway plays an important suppressive role in spinal nociceptive processing after peripheral inflammation and nerve injury, and that FFAR1 agonists might serve as a new class of analgesics for treating inflammatory and neuropathic pain. To further pursue the functional significance of central FFAR1 signaling, we investigated the possible involvement of FFAR1 in endogenous pain modulation, depressive-like behavior, and aberrant behavior induced by addictive drugs using FFAR1 agonist (GW9508), FFAR1 antagonist (GW1100), and FFAR1 gene-deficient mice. As a result, FFAR1-deficient mice were found to exhibit stronger inflammatory and peripheral neuropathic pain-like behavior as well as depressive-like behavior. In particular, we noticed that peripheral nerve injury-induced depressive-like behavior was insensitive to imipramine. Next, we employed in vivo microdialysis to investigate whether FFAR1 is actually involved in the regulation of brain monoamines (dopamine and serotonin) releases. Our findings suggest that FFAR1 indirectly regulates dopamine release by promoting serotonin release. Thus, we are currently investigating how FFAR1 is involved in behavioral changes induced by addictive drugs such as cocaine and morphine. In this review, we briefly discuss about the possible involvement of FFAR1 in cocaine-induced locomotor hyperactivity.
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- 2023
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4. [Multi-Functionality of Eyes: Visual and Non-Visual Roles].
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Tsubota K, Torii H, and Kurihara T
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- Humans, Circadian Rhythm, Retinal Cone Photoreceptor Cells
- Abstract
Humans have nine kinds of photoreceptors, but only four, OPN1 (blue, green and red cone photoreceptors) and OPN2 (rod photoreceptor) are involved in sight. five photoreceptors are non-visual, including OPN4 (melanopsin) which controls circadian rhythm and OPN5 (neuropsin) which is important for myopia prevention. In this article, we explain the importance of the non-visual photoreceptors in the eye.
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- 2021
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5. [Immune Response on Outcomes in Hepatocellular Carcinoma].
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Iseda N, Itoh S, Tomiyama T, Morinaga A, Wang H, Shimagaki T, Kurihara T, Nagao Y, Toshima T, Harada N, Iguchi T, Yoshizumi T, and Mori M
- Subjects
- Bevacizumab, Humans, Sorafenib, Tumor Microenvironment, Carcinoma, Hepatocellular drug therapy, Liver Neoplasms drug therapy, Lung Neoplasms
- Abstract
Recently, immune checkpoint inhibitors(ICI)has been developed considerably. ICI has already been approved for malignant melanoma, lung cancer and renal cancer. We expected ICI to be taken for many cancers in the future. Therefore, the development of biomarker for them are needed. The recent large phase Ⅲ study IMbrave 150 evaluated atezolizumab plus bevacizumab vs sorafenib as the first treatment for patients with unresectable hepatocellular carcinoma(HCC). IMbrave 150 demonstrated statistically significant and clinically meaningful improvements in both OS and RFS for atezolizumab plus bevacizumab compared with sorafenib in HCC patients. A paradigm shift in the treatment of unresectable HCC is about to occur. In this article, we discussed the significance and biomarkers of tumor immunity in HCC microenvironment.
- Published
- 2020
6. [Consciousness Disturbance].
- Author
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Kurihara T
- Subjects
- Diagnosis, Differential, Diagnostic Errors, Humans, Prognosis, Consciousness Disorders diagnosis
- Abstract
Various diseases cause consciousness disturbance, many of which are directly related to life and functional prognosis. As they often affect the respiratory and circulatory functions, differential diagnosis must be considered while stabilizing the patients. Although appropriate treatment should be started promptly after differential diagnosis, preconceptions could lead to misdiagnosis. A detailed medical interview cannot be conducted directly with the patient, which is a significant disadvantage faced by medical professionals in consciousness disturbance cases compared to other neurological disorders. Therefore, careful physical examination and diagnosis are important. At the same time, differential diagnosis may change over time, and follow-up examinations are necessary. Here, we would like to report three emergency cases of consciousness disturbance.
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- 2020
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7. [Rubric Assessment for Pharmacotherapy in Spiral Curriculum: Development and Usefulness Evaluation].
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Handa S, Kohyama N, Kurihara T, Sugiyama E, Tanaka S, Yamamoto H, Miyasaka Y, Kogo M, Kato Y, Nakamura A, and Yamamoto T
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- Humans, Curriculum, Drug Therapy methods, Education, Pharmacy methods, Educational Measurement methods, Students, Pharmacy
- Abstract
A requirement, which students must satisfy, for a diploma at the Showa University School of Pharmacy is the ability to "plan, practice, and assess pharmacotherapy". To continuously assess the ability of students to meet this requirement and to provide patients with proper pharmacotherapy during student clinical rotations, we formulated the "Rubric assessment for pharmacotherapy" and evaluated its usefulness in tutorial learning classes. Clinical pharmacy faculty members created the rubric based on the Subjective, Objective, Assessment, and Plan (SOAP) note guidelines of the university. Third- (2016) and fourth-year students (2017) were required to self-assess their SOAP notes to analyze six clinical cases using the rubric. The rubric consists of three domains: (1) Evaluation of patient condition, (2) Proposal of pharmacotherapy, and (3) Plan for an assessment of pharmacotherapy. The rubric comprises 31 subdomains and is evaluated according to four levels of performance. In this study, 978 rubric sheets that were used by students to evaluate their own SOAP notes were analyzed. We found that the students were able to continuously self-assess their performance using the rubric while continuously improving their achievement level (p<0.05). The results of this study suggest that rubric assessments may be used as a tool for supporting students to plan, practice, and assess pharmacotherapy.
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- 2020
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8. [A case of rectal villous adenoma with electrolyte depletion syndrome treated with surgical resection].
- Author
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Suzuki N, Kajiwara A, Usami T, Nakajima Y, Yamamiya A, Konda K, Shimozuma Y, Uchikoshi M, Kurihara T, and Yoshida H
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- Adenoma, Villous complications, Adenoma, Villous surgery, Aged, Electrolytes, Humans, Male, Precancerous Conditions, Rectal Neoplasms complications, Rectal Neoplasms surgery, Adenoma, Villous diagnosis, Rectal Neoplasms diagnosis, Water-Electrolyte Imbalance diagnosis
- Abstract
A 65-year-old man was previously admitted to our university hospital thrice in the last 2 years because of acute kidney failure. This time he was admitted because of frequent diarrhea, anorexia, exacerbation of renal function, and hyponatremia. Rectal wall thickening was detected on computed tomography. Subsequently, a rectal polyp with mucous secretion was found on colonoscopy, which was further diagnosed as a subcutaneous villous adenoma on biopsy. Thus, electrolyte depletion syndrome associated with the rectal polyp was thought to be the cause of his symptoms. Finally, the patient underwent abdominoperineal resection of the rectum. Histopathologically, the rectal lesion was diagnosed as a villous/tubularadenoma without malignancy, and this is such a rare case to be reported.
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- 2019
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9. [Astrocyte-neuron lactate shuttle, the major effector of astrocytic PACAP signaling for CNS functions].
- Author
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Kambe Y, Kurihara T, and Miyata A
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- Central Nervous System, Lactic Acid, Neurons, Pituitary Adenylate Cyclase-Activating Polypeptide, Receptors, Pituitary Adenylate Cyclase-Activating Polypeptide, Type I, Astrocytes
- Abstract
Transfer of lactate from astrocytes to neurons is activated when synaptic activity is increased, and this mechanism is now known as the astrocyte-neuron lactate shuttle (ANLS), that could account for the coupling between synaptic activity and energy delivery. Many lines of evidence suggested that ANLS contributes to neuronal activation or synaptic plasticity at the cellular level as well as learning/memory and cocaine addiction at the behavioral level. However, the candidate neurotransmitters which evoke ANLS activation are still under discussion. Pituitary adenylate cyclase-activating polypeptide (PACAP) is a neurotransmitter which distributed widely in central nervous system. Since PACAP might activate ANLS from very low concentration in cultured forebrain astrocytes, PACAP might be one of the candidates for the endogenous ANLS activator. In the present study, we investigated the potential relevance of PACAP/ANLS signaling in the learning/memory and spinal nociceptive transmission. In this study, we made the following findings: 1) PACAP could be an endogenous inducer for ANLS activation in central nervous system; 2) ANLS activation by PACAP/PAC1 receptor signaling contributed to learning/memory and induced long-lasting nociceptive behaviors; 3) PKC activation played an important role in the PACAP/PAC1 receptor-evoked ANLS.
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- 2018
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10. [A Cost-effectiveness Analysis of Sunitinib vs. Interferon-alpha in Patient with Advanced Renal Cell Carcinoma in Japan].
- Author
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Tomura K, Naito Y, Sunaga T, Kurihara T, Usuda M, Nagatani A, Ogawa Y, Akiyama N, Sasaki H, Murata T, Sakamaki H, Kogo M, and Sasaki T
- Subjects
- Humans, Japan, Markov Chains, Molecular Targeted Therapy, Monte Carlo Method, Quality-Adjusted Life Years, Sunitinib, Antineoplastic Agents therapeutic use, Carcinoma, Renal Cell drug therapy, Cost-Benefit Analysis, Indoles economics, Indoles therapeutic use, Interferon-alpha economics, Interferon-alpha therapeutic use, Kidney Neoplasms drug therapy, Pyrroles economics, Pyrroles therapeutic use
- Abstract
Sunitinib has been shown to offer clinical benefits during the treatment of advanced renal cell carcinoma. However, molecular targeting drugs are expensive and can have a significant impact on medical expenses. The purpose of this study was to assess the cost-effectiveness of sunitinib as a first-line therapy compared with interferon-alpha (IFN-α) in metastatic renal cell carcinoma patients. A Markov model was used to show the clinical courses of patients with metastatic renal cell carcinoma who received sunitinib or IFN-α. The transition probabilities and utilities employed in this Markov model were derived from two sources. This study focused on the perspective of public healthcare payer, as only direct medical costs were estimated from the treatment schedule for metastatic renal cell cancer. In the cost-effectiveness analysis, outcomes were valued in terms of life years (LYs) and quality-adjusted life years (QALYs). We calculated the incremental cost-effectiveness ratio (ICER) during the cost-effectiveness analysis. The results were tested using Monte Carlo simulations. Sunitinib and IFN-α treatment resulted in LYs of 2.40 years and 2.03 years, QALYs of 1.58 and 1.25, and expected costs of 13,572,629 yen and 6,083,002 yen, respectively. As a result, the ICER associated with replacing IFN-α with sunitinib was 22,695,839 yen/QALYs. Our results suggest that compared with IFN-α, sunitinib prolongs LYs and QALYs, but the increases in quality achieved by sunitinib are more expensive than those produced by IFN-α.
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- 2018
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11. Splenic marginal zone lymphoma uncovered after a 10-year follow up as anemia of unknown cause.
- Author
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Koyama A, Shiotani C, Kurihara T, Mushino T, Okamoto Y, Tamaki T, Ozaki T, Ohshima K, and Tamura S
- Subjects
- Aged, Follow-Up Studies, Humans, Lymphoma, B-Cell, Marginal Zone pathology, Lymphoma, B-Cell, Marginal Zone therapy, Male, Splenic Neoplasms pathology, Splenic Neoplasms therapy, Time Factors, Treatment Outcome, Anemia diagnosis, Diagnosis, Differential, Lymphoma, B-Cell, Marginal Zone diagnosis, Splenic Neoplasms diagnosis
- Abstract
A 75-year-old man was referred to our hospital for evaluation of persistent anemia. Despite repeated diagnostic tests, including bone marrow aspiration, the cause of his anemia remained unknown. On each occasion, computed tomography had revealed neither swollen lymph nodes nor splenomegaly. After a 10-year follow-up period, he was admitted with general fatigue and had developed splenomegaly as well as the anemia. Bone marrow biopsy revealed increased abnormal lymphocytes with short villi that were positive for CD11c, CD19, CD20, and kappa chain, but not for CD5, CD10, CD23, or cyclin D1, according to flow cytometry. The bone marrow biopsy sample showed nodular proliferation of small to medium-sized abnormal lymphocytes. Based on these findings, the patient was diagnosed as having splenic marginal zone lymphoma, a rare indolent B-cell neoplasm. Although his splenomegaly diminished after eight cycles of weekly rituximab monotherapy, the anemia did not improve, and abnormal lymphocytes remained detectable in his bone marrow. The patient was then treated with bendamustine monotherapy for six cycles, after which the anemia resolved, and he has since been in good condition. Although rare, it is important to consider splenic marginal zone lymphoma during the differential diagnosis of patients with a long history of anemia of unknown cause.
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- 2017
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12. Cyclic thrombocytopenia synchronizing with the menstrual cycle showing periodic phases of thrombocytopenia and rebound thrombocytosis.
- Author
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Kurihara T, Sumi M, Kaiume H, Takeda W, Kirihara T, Sato K, Ueki T, Hiroshima Y, and Kobayashi H
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- Adult, Female, Humans, Platelet Count methods, Purpura, Thrombocytopenic, Idiopathic diagnosis, Thrombocytopenia diagnosis, Thrombocytosis diagnosis, Menstrual Cycle drug effects, Prednisolone therapeutic use, Purpura, Thrombocytopenic, Idiopathic drug therapy, Thrombocytopenia drug therapy, Thrombocytosis drug therapy
- Abstract
A 37-year-old woman was admitted to our hospital for purpura involving the extremities and thrombocytopenia. Prednisolone (PSL) was administered based on a diagnosis of idiopathic thrombocytopenic purpura (ITP), but was not effective for maintaining her platelet count within the normal range, which showed cyclic fluctuation corresponding to the menstrual cycle. Therefore, we discontinued PSL, and cyclic thrombocytopenia (CTP) was diagnosed. CTP is a rare disease which is usually treated as ITP but with no response. Although the exact cause of CTP is uncertain, in our case, a hormonal mechanism may be responsible for fluctuating platelet count.
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- 2017
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13. Early diagnosis and successful treatment of disseminated toxoplasmosis after cord blood transplantation.
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Kurihara T, Sumi M, Kaiume H, Takeda W, Kirihara T, Sato K, Ueki T, Hiroshima Y, Ueno M, Ichikawa N, Kaneko Y, Hikosaka K, Norose K, and Kobayashi H
- Subjects
- Aged, Antiprotozoal Agents therapeutic use, Drug Combinations, Early Diagnosis, Female, Humans, Toxoplasma drug effects, Toxoplasmosis diagnosis, Toxoplasmosis etiology, Hematopoietic Stem Cell Transplantation adverse effects, Toxoplasmosis drug therapy
- Abstract
A 66-year-old woman with refractory angioimmunoblastic T-cell lymphoma underwent cord blood transplantation. Prior to transplantation, a serological test for Toxoplasma gondii-specific IgG antibodies was positive. On day 96, she exhibited fever and dry cough. Chest CT showed diffuse centrilobular ground glass opacities in both lungs. The reactivation of T. gondii was identified by the presence of parasite DNA in peripheral blood and bronchoalveolar lavage fluid. Moreover, brain MRI revealed a space occupying lesion in the right occipital lobe. Therefore, disseminated toxoplasmosis was diagnosed. She received pyrimethamine and sulfadiazine from day 99. The lung and brain lesions both showed improvement but the PCR assay for T. gondii DNA in peripheral blood was positive on day 133. On day 146, she developed blurred vision and reduced visual acuity, and a tentative diagnosis of toxoplasmic retinochoroiditis was made based on ophthalmic examination results. As agranulocytosis developed on day 158, we decided to discontinue pyrimethamine and sulfadiazine and the treatment was thus switched to atovaquone. Moreover, we added spiramycin to atovaquone therapy from day 174, and her ocular condition gradually improved. In general, the prognosis of disseminated toxoplasmosis after hematopoietic stem cell transplantation (HSCT) is extremely poor. However, early diagnosis and treatment may contribute to improvement of the fundamentally dismal prognosis of disseminated toxoplasmosis after HSCT.
- Published
- 2016
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14. [USE OF QuantiFERON-TB Gold in Tube AND T-SPOT.TB FOR DIAGNOSING PATIENTS WITH SUSPECTED PULMONARY TUBERCULOSIS].
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Okimoto N, Kurihara T, and Miyashita N
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- Adult, Aged, Aged, 80 and over, Female, Humans, Male, Young Adult, Tuberculin Test, Tuberculosis, Pulmonary diagnosis
- Abstract
Objective: We analyzed the use of QFT-TB Gold in Tube and T-SPOT.TB in diagnosing patients with suspected pulmonary tuberculosis., Subjects and Methods: We evaluated 122 patients with suspected pulmonary tuberculosis (where chest X-ray showed consolidation or. tumor shadow in predilection sites of pulmonary tuberculosis and through contact investigation). QFT-TB Gold and T-SPOT.TB were performed for all the patients. The positive response rate and history of pulmonary tuberculosis in patients who showed positive results for the tests were evaluated., Results: Ninteen patients showed positive results for QFT-TB Gold, and 9, for T-SPOT.TB. Four patients showed positive results for QFT-TB Gold, and 3, for T-SPOT.TB in 4 patients with active tuberculosis. The patients without active tuberculosis whose IGRAs were positive (old pulmonary tuberculosis, Mycobacterium avium cmplex, pneumonia, lung cancer, pulmonary sequestration, bronchiectasis) had a past history of pulmonary tuberculosis., Conclusion: The positive result rate of QFT?-TB Gold was higher than that of T-SPOT.TB in the subjects with suspected pulmonary tuberculosis. We think that QFT-TB Gold reflected the past history of pulmonary tuberculosis.
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- 2016
15. [Discordant lymphoma of duodenal EBV-positive peripheral T-cell lymphoma not otherwise specified and ileal diffuse large B-cell lymphoma].
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Kurihara T, Sumi M, Kaiume H, Takeda W, Kirihara T, Sato K, Ueki T, Hiroshima Y, Ueno M, Ichikawa N, Asano N, Watanabe M, and Kobayashi H
- Subjects
- Aged, Fatal Outcome, Female, Humans, Epstein-Barr Virus Infections complications, Herpesvirus 4, Human, Ileal Neoplasms pathology, Lymphoma, Large B-Cell, Diffuse drug therapy, Lymphoma, Large B-Cell, Diffuse virology, Lymphoma, T-Cell, Peripheral drug therapy, Lymphoma, T-Cell, Peripheral virology, Neoplasms, Multiple Primary virology
- Abstract
A 79-year-old woman was admitted with a 5-kg weight loss and anorexia. Computed tomography showed diffuse lymphadenopathy, and thickening of the duodenal and ileal walls. The patient then underwent biopsy of these sites. Pathological examination revealed duodenal Epstein-Barr virus (EBV)-positive peripheral T cell lymphoma-not otherwise specified (PTCL-NOS) and EBV-negative ileal diffuse large B-cell lymphoma (DLBCL) to be present simultaneously. Combination chemotherapy including rituximab produced a reduction of the duodenal EBV-positive PTCL-NOS lesion, but had no effect on the EBV-negative ileal DLBCL lesion. Thereafter, new lymphadenopathy, high fever, and lactate dehydrogenase (LD) elevation developed, complicated by pneumonia. The patient died due to rapid deterioration of the lymphoma and pneumonia on day 108 after initiation of treatment. EBV-positive PTCL-NOS is reportedly rare and the prognosis is poor. Moreover, EBV-negative ileal DLBCL was diagnosed simultaneously. This case is considered to have had an extremely rare discordant lymphoma, although the exact etiology of its development remains unknown. We speculate that age-related disorders of the immune system and HCV infection may have been associated with the pathogenic mechanism of lymphomagenesis in this case.
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- 2016
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16. [Effects of Constant Intake of Lutein-rich Spinach on Macular Pigment Optical Density: a Pilot Study].
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Ozawa Y, Nagai N, Suzuki M, Kurihara T, Shinoda H, Watanabe M, and Tsubota K
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- Adult, Female, Humans, Male, Middle Aged, Pilot Projects, Surveys and Questionnaires, Young Adult, Eye metabolism, Lutein metabolism, Macular Pigment metabolism, Spinacia oleracea, Visual Acuity physiology
- Abstract
Purpose: Anti-oxidative nutrient supplements, including lutein, are an important preventive approach for age-related macular degeneration (AMD). In this pilot study, we obtained data required for planning a future dietary intervention study investigating the prevention of AMD progression with lutein-rich spinach., Methods: We examined 22 eyes from 11 healthy nonsmokers (ages 21-45 years) who ingested 75 g of frozen spinach containing 10 mg lutein every day for 2 months. Food frequency questionnaire, measurement of macular pigment optical density (MPOD), and eye and blood examinations were performed., Results: Mean lutein ± SD intake from food was 0.87 ± 0.76 mg/1,000 kcal at baseline. Mean MPOD, best corrected visual acuity, and serum lutein concentrations were increased at 1 and 2 months compared with baseline., Conclusion: Constant intake of lutein-rich spinach increased both MPOD and serum lutein concentrations. These data are important for planning of a future interventional study examining the effects of dietary lutein.
- Published
- 2016
17. Gastrointestinal post-transplant lymphoproliferative disorder with rapidly forming characteristic lesions after cord blood transplantation: a report of two cases.
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Sato Y, Sumi M, Ueki T, Kaiume H, Kirihara T, Takeda W, Kurihara T, Sato K, Hiroshima Y, Tokutake K, Kimura T, Watanabe M, and Kobayashi H
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- Adult, Epstein-Barr Virus Infections diagnosis, Gastrointestinal Diseases etiology, Gastrointestinal Diseases virology, Herpesvirus 4, Human, Humans, Leukemia, Myeloid, Acute therapy, Lymphoproliferative Disorders etiology, Lymphoproliferative Disorders virology, Male, Middle Aged, Cord Blood Stem Cell Transplantation adverse effects, Fetal Blood, Gastrointestinal Diseases diagnosis, Lymphoproliferative Disorders diagnosis
- Abstract
Epstein-Barr virus (EBV)-related post-transplant lymphoproliferative disorder (PTLD) frequently involves the gastrointestinal tract, but the endoscopic characteristics of this condition have not been discussed in detail. We report two cases of EBV-related PTLD involving rapidly forming characteristic lesions. Case 1 was a 60-year-old man with acute myeloid leukemia who underwent cord blood transplantation (CBT) after which he initially achieved complete remission (CR). He developed nausea and vomiting on day 99. Gastrointestinal endoscopy showed no tumor-like lesions in his stomach. However, a second endoscopic evaluation, which was performed 7 days after the first, revealed multiple raised lesions in his stomach, and a histopathological examination of the biopsy specimen resulted in a diagnosis of EBV-related PTLD. Case 2 was a 36-year-old man with acute myeloid leukemia who underwent CBT after achieving his second CR. He suffered nausea and pharyngalgia on day 309. Although the initial gastrointestinal endoscopic examination showed only multiple erosive or small ulcerative lesions, a second endoscopic evaluation, which was performed 10 days after the first, revealed a raised lesion with a central ulcer in the duodenum. Histopathological examination of the biopsy specimen yielded a diagnosis of EBV-related PTLD. Both patients were successfully treated by reducing the dose of immunosuppressive agents and administering rituximab.
- Published
- 2016
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18. [Successful long-term control of recurrent primary central nervous system anaplastic large cell lymphoma after autologous hematopoietic stem cell transplantation with concurrent whole brain and spinal cord radiotherapy].
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Hiroshima Y, Kaiume H, Kirihara T, Takeda W, Kurihara T, Sato K, Shimizu I, Ueki T, Sumi M, Ueno M, Ichikawa N, Asano N, Watanabe M, and Kobayashi H
- Subjects
- Antineoplastic Combined Chemotherapy Protocols, Central Nervous System Neoplasms diagnosis, Female, Humans, Lymphoma, Large-Cell, Anaplastic diagnosis, Radiotherapy, Adjuvant, Recurrence, Transplantation, Autologous, Treatment Outcome, Young Adult, Central Nervous System Neoplasms therapy, Hematopoietic Stem Cell Transplantation, Lymphoma, Large-Cell, Anaplastic therapy
- Abstract
A 24-year-old woman was hospitalized with seizures in 2002. Magnetic resonance imaging demonstrated an intraspinal mass and inhomogeneous gadolinium enhancement along the cerebrospinal meninges. Cerebrospinal fluid (CSF) cytology showed large atypical cells expressing CD2, cytoplasmic CD3, CD7, CD13 and CD30. The patient was finally diagnosed with primary central nervous system anaplastic large cell lymphoma (ALCL). She completed 5 courses of methotrexate (MTX)/ procarbazine (PCZ)/ vincristine (VCR) (MPV) chemotherapy, followed by 2 courses of high dose cytarabine (AraC) and achieved a complete remission. In 2003, she suffered from headache. CSF analysis showed atypical lymphoid cells expressing CD 30. First CNS relapse was diagnosed. She then underwent autologous peripheral blood stem cell transplantation (auto-PBSCT) after administration of thiotepa, buslfan, and cyclophosphamide. However, second CNS relapse occurred in 2004. She received 5 courses of MPV chemotherapy followed by 36 Gy of craniospinal irradiation. Although there was no recurrence of the CNS disease, a third relapse was detected in the right breast in 2009. Pathological and immunohistochemistry analysis revealed ALK-1 positive ALCL. She was treated with 6 courses of cyclophosphamide/adriamycin/vincristine/predonine (CHOP) chemotherapy and 30.6 Gy of local radiation therapy. She has remained in remission for 6 years, to date, since the last therapy and has an excellent quality of life.
- Published
- 2015
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19. [Involvement of free fatty acid receptor GPR40/FFAR1 in the regulation of spinal nociceptive transmission].
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Kurihara T and Miyata A
- Subjects
- Animals, Humans, Pain Management, Nociception, Pain, Receptors, G-Protein-Coupled metabolism, Spine metabolism, Synaptic Transmission
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- 2015
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20. [Primary graft failure in a patient with refractory acute myeloid leukemia successfully treated with modified 'one-day'-based preparative regimen followed by cord blood transplantation].
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Kaiume H, Sumi M, Kirihara T, Takeda W, Kurihara T, Sato K, Ueki T, Hiroshima Y, Ueno M, Ichikawa N, Mori Y, and Kobayashi H
- Subjects
- Adult, Drug Combinations, Female, Graft Rejection, Humans, Preoperative Care, Recurrence, Transplantation, Homologous, Treatment Outcome, Fetal Blood transplantation, Leukemia, Myeloid, Acute therapy
- Abstract
A 32-year-old woman with acute myeloid leukemia failed to achieve remission with two courses of induction chemotherapy, and she received cord blood transplantation (CBT) in a non-remission state, using an HLA-matched cord blood (CB) graft after a conditioning regimen of fludarabine (Flu) at 125 mg/m² + melphalan at 140 mg/m² + total body irradiation (TBI) at 4 Gy. Chimerism analysis of the bone marrow (BM) cells performed on day 21 after CBT revealed 99% of these cells to be the recipient type. We diagnosed the patient as having graft failure (GF), and then carried out a second CBT using an HLA-matched male CB graft on day 29 after the first CBT. The conditioning regimen (modified 'one-day'-based regimen) consisted of Flu at 30 mg/m² (3 days) + cyclophosphamide (CY) at 2 g/m² (1 day) + TBI 2 Gy. She achieved neutrophil engraftment on day 18. FISH analysis of BM cells on day 13 showed 96% to be of male origin. She has remained in complete remission for 18 months, to date, since the salvage CBT. This case suggests that salvage CBT following a modified 'one-day'-based regimen may preserve a strong graft versus leukemia effect.
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- 2015
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21. [Chromosomally integrated human herpesvirus-6 requiring differential diagnosis of reactivation after allogeneic hematopoietic stem cell transplantation].
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Sato K, Sumi M, Ueki T, Kaiume H, Kirihara T, Takeda W, Kurihara T, Hiroshima Y, Ueno M, Ichikawa N, Sato T, Ogata M, Fukuda T, and Kobayashi H
- Subjects
- Antiviral Agents therapeutic use, Humans, Japan, Male, Middle Aged, Prevalence, Transplantation, Homologous adverse effects, Virus Activation, Diagnosis, Differential, Hematopoietic Stem Cell Transplantation adverse effects, Herpesvirus 6, Human isolation & purification, Roseolovirus Infections diagnosis, Roseolovirus Infections therapy
- Abstract
Human herpesvirus-6 (HHV-6) is known to cause critical encephalitis, as a central nervous system infection, in some hematopoietic stem cell transplantation (HSCT) recipients. Chromosomally integrated human herpesvirus-6 (CIHHV-6) persistently shows HHV-6 DNA in blood, but this does not necessarily suggest active infection. The true clinical significance in HSCT is not clear. The prevalence of CIHHV-6 in Japan is reportedly 0.21%. We herein report two HSCTs: from a CIHHV-6-positive donor to a negative recipient and from a negative donor to a positive recipient. In the CIHHV-6-positive donor case, the recipient's plasma, which had been negative for HHV-6 before HSCT, became positive after transplantation and the level then remained high, although the subject was asymptomatic. In the CIHHV-6-positive recipient case, the patient's plasma viral load was high just after transplantation, although the subject was asymptomatic, and the load gradually decreased after engraftment. Antivirals had no effect on the viral load in either case. We should consider CIHHV-6 when the HHV-6 DNA load in blood persists asymptomatically after HSCT, to avoid misdiagnosis of reactivated HHV-6 infection and overuse of antivirals. It is also useful to monitor HHV-6 DNA in blood before HSCT, to distinguish HHV-6 reactivation from CIHHV-6.
- Published
- 2015
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22. Successful treatment of chronic disseminated intravascular coagulation using recombinant human soluble thrombomodulin in a dialysis patient with dissecting aortic aneurysm.
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Hayakawa K, Tamura S, Gima H, Hayakawa T, Kurihara T, Ooura M, Nakano Y, Souri M, Ichinose A, and Fujimoto T
- Subjects
- Chronic Disease, Factor XIII Deficiency etiology, Humans, Male, Middle Aged, Polycystic Kidney Diseases complications, Recombinant Proteins therapeutic use, Solubility, Thrombocytopenia complications, Treatment Outcome, Aortic Dissection complications, Aortic Aneurysm complications, Disseminated Intravascular Coagulation drug therapy, Disseminated Intravascular Coagulation etiology, Kidney Failure, Chronic etiology, Kidney Failure, Chronic therapy, Renal Dialysis, Thrombomodulin therapeutic use
- Abstract
A 62-year-old man had a history of acute aortic dissection (Stanford type A) and had been diagnosed with polycystic kidney disease three years earlier, and then developed end-stage renal failure. He was referred with chief complaints of difficult hemostasis and consecutive hemorrhagic episodes at the puncture site of the shunt soon after dialysis introduction. We suspected chronic disseminated intravascular coagulation (DIC) due to mild thrombocytopenia and a fibrinolytic system abnormality. Plasma factor XIII activity was decreased, but no inhibitor was detected. In addition, contrast-enhanced computed tomography showed exacerbation of a dissecting aortic aneurysm. We finally diagnosed chronic DIC and secondary factor XIII deficiency associated with the aortic aneurysm. We selected treatment involving recombinant human soluble thrombomodulin (rTM) because he was on maintenance dialysis and required long-term follow-up bofore the operation. Hemostatic function improved with regular administration of rTM, and was well-controlled preoperatively.
- Published
- 2014
23. [Therapy-related chronic myelogenous leukemia following RFM therapy in a patient with follicular lymphoma].
- Author
-
Shibazaki M, Sumi M, Takeda W, Kirihara T, Kurihara T, Sato K, Ueki T, Hiroshima Y, Ueno M, Ichikawa N, Mori Y, and Kobayashi H
- Subjects
- Antibodies, Monoclonal, Murine-Derived administration & dosage, Antibodies, Monoclonal, Murine-Derived adverse effects, Antineoplastic Combined Chemotherapy Protocols therapeutic use, Female, Humans, Lymphoma, Follicular complications, Lymphoma, Follicular diagnosis, Middle Aged, Mitoxantrone administration & dosage, Mitoxantrone adverse effects, Rituximab, Vidarabine administration & dosage, Vidarabine adverse effects, Vidarabine analogs & derivatives, Antineoplastic Combined Chemotherapy Protocols adverse effects, Leukemia, Myelogenous, Chronic, BCR-ABL Positive chemically induced, Lymphoma, Follicular drug therapy
- Abstract
Therapy-related myelodysplastic syndrome and acute myelogenous leukemia are increasingly being recognized as treatment complications in patients receiving chemotherapy or radiotherapy for previous neoplasms. However, therapy-related chronic myelogenous leukemia is relatively rare. A 61-year-old woman with a history of radiation therapy for breast cancer had previously, in 2007, received 4 courses of chemotherapy (RFM: rituximab, fludarabine, and mitoxantrone) for follicular lymphoma. In 2010, she was diagnosed with chronic-phase chronic myelogenous leukemia (CML) with Philadelphia chromosome but no other cytogenetic anomalies. Although a complete cytogenetic response (CCyR) was achieved with imatinib therapy, she developed leukocytosis with lymphoblasts and lymphoid crisis was diagnosed in January 2013. G-banded karyotyping showed 45, XX, -7, t, (9;22)(q33;q11.2). Unrelated bone marrow stem cell transplantation was performed after she had achieved a CCyR with dasatinib therapy. Polymerase chain reaction detected no major bcr/abl transcript in her bone marrow 42 days after transplantation. The majority of secondary leukemias resulting from the use of cytotoxic drugs can be divided into two well-defined groups depending on whether the patient has received alkylating agents or topoisomerase II inhibitors. However, concerns regarding the leukemogenic potential of fludarabine-based chemotherapy are growing. The potential risk of therapy-related leukemias including CML needs to be considered following fludarabine-based chemotherapy.
- Published
- 2014
24. Congenital dysfibrinogenemia coincidentally diagnosed at the onset of chronic myelogenous leukemia.
- Author
-
Kirihara T, Fujikawa Y, Takeda W, Kurihara T, Sato K, Ueki T, Hiroshima Y, Sumi M, Ueno M, Ichikawa N, Arai S, Soya K, Okumura N, and Kobayashi H
- Subjects
- Adult, Afibrinogenemia diagnosis, Fibrinogen genetics, Humans, Leukemia, Myelogenous, Chronic, BCR-ABL Positive drug therapy, Male, Afibrinogenemia genetics, Genetic Predisposition to Disease genetics, Leukemia, Myelogenous, Chronic, BCR-ABL Positive genetics, Mutation genetics
- Abstract
A 34-year-old man was referred to our hospital for leukocytosis and fundal hemorrhage. Peripheral blood and coagulation tests showed increases in cells at all stages of the neutrophilic series and a low level of fibrinogen (Fbg). Chronic myelogenous leukemia (CML) was diagnosed, and nilotinib was administered. During the clinical course of CML treatment, plasma Fbg levels continued to be low, but the patient showed neither hemorrhagic nor thrombotic complications. Fbg analysis showed normal antigen levels and low activity levels, which indicated dysfibrinogenemia. Genetic analysis revealed a heterozygous gene mutation (γ308AAT→AAG), a mutation which was also found in the patient's mother. Asymptomatic patients with dysfibrinogenemia have a low risk of hemorrhage in daily life and do not require treatment. However, in those undergoing major surgery or in serious accidents, replacement therapy may be required. When the cause of low Fbg levels is unknown, dysfibrinogenemia or fibrinogen deficiency should be considered. Even asymptomatic patients may benefit from more detailed immunologic and genetic analyses.
- Published
- 2014
25. [Fatal bone marrow necrosis and fat embolism following sepsis in a patient with acute lymphoblastic leukemia after consolidation chemotherapy].
- Author
-
Takeda W, Sumi M, Kirihara T, Kurihara T, Sato K, Fujikawa Y, Shimizu I, Ueki T, Hiroshima Y, Ueno M, Ichikawa N, Watanabe M, and Kobayashi H
- Subjects
- Antineoplastic Combined Chemotherapy Protocols administration & dosage, Cyclophosphamide administration & dosage, Cyclophosphamide adverse effects, Dexamethasone administration & dosage, Dexamethasone adverse effects, Doxorubicin administration & dosage, Doxorubicin adverse effects, Fatal Outcome, Herpes Zoster etiology, Humans, Induction Chemotherapy, Male, Middle Aged, Multiple Organ Failure etiology, Necrosis etiology, Vincristine administration & dosage, Vincristine adverse effects, Antineoplastic Combined Chemotherapy Protocols adverse effects, Antineoplastic Combined Chemotherapy Protocols therapeutic use, Bone Marrow pathology, Consolidation Chemotherapy adverse effects, Embolism, Fat etiology, Precursor Cell Lymphoblastic Leukemia-Lymphoma drug therapy, Sepsis etiology, Streptococcal Infections etiology, Streptococcus constellatus
- Abstract
We report a 58-year-old Japanese man with acute lymphoblastic leukemia. On the seventh day of his second course of consolidation therapy, he developed herpes zoster, and on the 17th day, he developed a high fever, dyspnea, and lapsed into a coma. Streptococcus constellatus was isolated from blood culture. Despite intensive therapy, multiple organ failure progressed rapidly, and he died on the 19th day. Pathological examination of autopsy specimens revealed bone marrow necrosis and fat embolism in multiple organs. In this patient, sepsis led to bone marrow necrosis and, subsequently, to fat embolism.
- Published
- 2014
26. [A case of surgical treatment for a bilateral pneumothorax that occurred in a patient with severe asbestosis and advanced emphysema].
- Author
-
Kurihara T, Kawano D, Okamoto T, Fujishita T, Suzuki Y, Kitahara H, Shimamatsu S, Kouno M, Morodomi Y, and Maehara Y
- Subjects
- Aged, Humans, Male, Thoracic Surgery, Video-Assisted, Asbestosis complications, Emphysema complications, Pneumothorax surgery
- Abstract
A 71-year-old male with a history of asbestosis was referred to our department for the treatment of a bilateral pneumothorax. His pulmonary function was severely impaired because of asbestosis and emphysema. Chest computed tomography showed severe emphysema with bilateral multiple bullae. Although chest drainage tubes were placed in the bilateral thorax, the left lung did not completely expand due to a persistent air leak. We performed VATS while retaining the patient's spontaneous respiration under general sedation with regional epidural anesthesia, since one-lung, positive pressure ventilation was considered to be difficult to achieve. After the airway was secured by a laryngeal-mask, the bullae were then thoracoscopically resected. The pneumothorax improved after surgery.
- Published
- 2014
27. [Outcome of schizophrenia in Asia: from the viewpoint of comparison between developed and developing countries].
- Author
-
Kurihara T
- Subjects
- Asia, Humans, Schizophrenia epidemiology, Schizophrenia mortality, Treatment Outcome, World Health Organization, Developed Countries, Developing Countries, Schizophrenia therapy
- Abstract
The majority of the population in Asia lives in developing countries. Large-scale, international outcome studies coordinated by the WHO concluded that outcomes for schizophrenia in developing countries were better than those in developed countries. However, hospital-based outcome studies in Asian countries do not consistently support this finding, illustrating the diversity of outcomes in schizophrenia Moreover, community-based outcome studies in developing Asian countries highlight the fact that there are many individuals with schizophrenia who have never been treated, and that outcomes for this group are poor if they remain untreated. Furthermore, some studies in these countries have reported high mortality rates associated with schizophrenia Future studies in Asian countries should further investigate the relationship of accessibility of mental health services and sociocultural factors to the prognosis of schizophrenia. Research should also explore strategies for providing appropriate treatment for individuals with schizophrenia.
- Published
- 2014
28. [Chemical approach to analyze the physiological function of phospholipids with polyunsaturated fatty acyl chain].
- Author
-
Kurihara T and Kawamoto J
- Subjects
- Animals, Biochemical Phenomena, Cell Division, Cell Membrane metabolism, Fatty Acids, Unsaturated chemistry, Humans, Liposomes chemistry, Phospholipids chemistry, Fatty Acids, Unsaturated metabolism, Phospholipids metabolism
- Abstract
Polyunsaturated fatty acids such as eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) occur in biological membranes as acyl groups of phospholipids and exhibit remarkable physiological activities. In human, they have various beneficial effects on health such as protective effects against cardiovascular disease, inflammation, and cancer. We have been studying their physiological functions in bacteria, which have a much simpler membrane structure than eukaryotes. We found that the cell division of a marine bacterium, Shewanella livingstonensis Ac10, is inhibited and shows growth retardation by disruption of its EPA biosynthesis genes. We synthesized a fluorescent analog of EPA-containing phospholipids (EPA-PLs) as a chemical probe to analyze their subcellular distribution and found that it is localized at the center of the cell undergoing cell division. This localization was shown to depend on the structure of the hydrocarbon chain of the phospholipids. We also examined the effects of EPA-PLs on the folding of Omp74, a major membrane protein of this bacterium, by using liposomes and found that EPA-PLs facilitated the folding process. The results imply that EPA-PLs function as a chemical chaperone in the folding of membrane proteins. These findings would contribute to understanding of the physiological function of phospholipids with polyunsaturated fatty acyl chains in various biological membranes.
- Published
- 2014
- Full Text
- View/download PDF
29. [Accidents during bathing].
- Author
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Hori S, Suzuki M, Ueno K, Sato Y, and Kurihara T
- Subjects
- Age Distribution, Animals, Body Temperature physiology, Death, Sudden etiology, Death, Sudden prevention & control, Humans, Japan, Accidents statistics & numerical data, Baths adverse effects, Hot Temperature adverse effects
- Abstract
Sudden death during bathing accounts for 10 to 15% of all out-of hospital cardiac arrests in Japan. Surveys in Tokyo revealed 1,085 victims of accidents during bathing transported by ambulance from October 1999 to March 2000. 53% of them were cardiac arrest and 25% were those who needed rescue from bath tub because of consciousness disturbance (rescued group). Clinical observation of the rescued group patients indicated they suffered from transient loss of consciousness probably because of elevated body temperature. The current hypothesis of the accidents during bathing is a unique type of heat illness exposed by high water temperature(41-43 degrees C). Geriatric population is vulnerable to the bathing induced heat illness.
- Published
- 2013
30. [Analysis of the risk factors for severe neutropenia in advanced non-small cell lung cancer after the first course of chemotherapy with third-generation agents].
- Author
-
Shibuya M, Kogo M, Kurihara T, Shikama Y, Nakajima H, Yoneyama K, and Kiuchi Y
- Subjects
- Adult, Aged, Aged, 80 and over, Antigens, Neoplasm blood, Biomarkers blood, Female, Humans, Keratin-19 blood, Logistic Models, Male, Middle Aged, Multivariate Analysis, Neutropenia diagnosis, Neutropenia epidemiology, Retrospective Studies, Risk Factors, Severity of Illness Index, Carcinoma, Non-Small-Cell Lung drug therapy, Keratin-19 deficiency, Lung Neoplasms drug therapy, Neutropenia chemically induced, Risk Assessment methods
- Abstract
We retrospectively evaluated clinical data before therapy to determine the risk factors for severe neutropenia in advanced non-small-cell lung cancer (NSCLC) patients treated with third-generation agents. We analyzed 100 patients who received such agents (paclitaxel, docetaxel, gemcitabine, irinotecan, or vinorelbine) for advanced NSCLC. The endpoint of the survey was the occurrence of severe neutropenia (grade 4). Risk factors significantly related to severe neutropenia were identified using logistic regression analysis. Of the 100 patients studied, the median age was 62.0 (32-81 years), and 77 (77.0%) were male. CEA 6.6 (0-2220) ng/dL and cytokeratin 19 fragment 21-1 (CYFRA) 4.8 (0.2-173.8) ng/dL before chemotherapy were higher than normal range. Severe neutropenia occurred in 36.0%, the incidence being highest in the first cycle (61.1%). In the univariate analysis, variables associated with severe neutropenia were sex, chest pain, absolute neutrophil count (ANC), Cr, CRP, and CYFRA. In the multivariate analysis, low CYFRA level was identified as a significant risk factor that contributed independently to chemotherapy-induced severe neutropenia (p<0.05). Our analysis suggests that low CYFRA level is the most important risk factor for severe neutropenia in advanced NSCLC patients after the first course of chemotherapy with third-generation agents.
- Published
- 2013
- Full Text
- View/download PDF
31. [The positive response rate with QuantiFERON-TB GOLD In-Tube in patients with Mycobacterium avium complex].
- Author
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Okimoto N, Nanba F, Kurihara T, and Miyashita N
- Subjects
- Age Factors, Aged, Aged, 80 and over, Female, Humans, Male, Middle Aged, Tuberculosis, Pulmonary complications, Interferon-gamma Release Tests, Mycobacterium avium-intracellulare Infection diagnosis
- Abstract
Objective: We studied the positive response rate with QuantiFERON-TB GOLD In-Tube in patients with Mycobacterium avium complex disease., Materials and Methods: We evaluated 62 subjects with M. avium complex disease. QuantiFERON-TB GOLD In-Tube was performed for all the subjects. The positive response rate with QuantiFERON-TB GOLD In-Tube and the history of pulmonary tuberculosis in patients who showed a positive response were evaluated., Results: Seven patients (11.3%) showed a positive response with QuantiFERON-TB GOLD In-Tube. These patients were elderly (age, 72-87 years) and had a history of pulmonary tuberculosis. Eleven other patients with a history of pulmonary tuberculosis showed a negative response with QuantiFERON-TB GOLD In-Tube., Conclusion: Half or less than half of the elderly patients with M. avium complex disease and a history of pulmonary tuberculosis showed a positive response with QuantiFERON-TB GOLD In-Tube.
- Published
- 2012
32. [Establishing indicators for diagnosis of cholinergic crisis].
- Author
-
Kariyone K, Shimatani Y, Kurihara T, Nagao T, Fujita Y, and Uesugi M
- Subjects
- Cholinesterase Inhibitors blood, Humans, Pyridinium Compounds blood, Cholinesterase Inhibitors poisoning, Cholinesterases blood, Serum Albumin analysis
- Abstract
Cholinergic crisis is an adverse effect of an anticholinesterase agent, which is one of the cholinergic agents. Cholinergic crisis may induce serious conditions such as breathing difficulties. Cholinergic crisis is often diagnosed by an abnormally low level of serum cholinesterase (ChE). However, ChE value is not an appropriate indicator of cholinergic crisis since it has a high inter-individual variation, even though its intra-individual variation is low. Therefore, an indicator with less inter-individual variation capable of preventing the risk of cholinergic crisis was investigated. The results of correlation test between ChE and serum albumin (Alb) showed a strong positive correlation; r = 0.778 in BCG method(Bromo cresol green method) and r = 0.766 in the BCP-improved method for Alb. In addition, the variations of Alb values are much lower than the drastic depression of ChE values in cholinergic crisis. Thus, it is considered that the ratio of ChE and Alb (ChE/Alb) can be a useful indicator of cholinergic crisis. As a result of ROC (Receiver operating characteristic) analysis, the ratios of ChE and Alb values using the BCG method (ChE/Alb (BCG)) were 20.7, 87.0, 156.8 for the Cutoff value, Likelihood ratio and Odds ratio respectively. When using the BCP-improved method for Alb, the ratios of ChE and Alb (ChE/Alb(BCP improved)) were 25.0, 93.7, 180.1 for the Cutoff value, Likelihood ratio and Odds ratio respectively. The ChE/Alb ratio appears to be an excellent indicator of cholinergic crisis diagnosis since it shows a high likelihood ratio as well as a high odds ratio.
- Published
- 2010
33. [Cost-effectiveness analysis of chemotherapy with GEM or S-1 for patients with non-resectable pancreatic cancer].
- Author
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Kurihara T, Kobayashi M, Kogo M, Yoneyama K, Ito N, Sunaga T, Konishi K, Imawari M, Tobe T, and Kiuchi Y
- Subjects
- Antineoplastic Agents therapeutic use, Antineoplastic Combined Chemotherapy Protocols therapeutic use, Cost-Benefit Analysis, Deoxycytidine economics, Deoxycytidine therapeutic use, Drug Combinations, Female, Humans, Male, Middle Aged, Neoplasm Staging, Oxonic Acid therapeutic use, Pancreatic Neoplasms drug therapy, Pancreatic Neoplasms pathology, Tegafur therapeutic use, Gemcitabine, Antineoplastic Agents economics, Antineoplastic Combined Chemotherapy Protocols economics, Deoxycytidine analogs & derivatives, Oxonic Acid economics, Pancreatic Neoplasms economics, Tegafur economics
- Abstract
Objective: To assess the cost-effectiveness of chemotherapy for patients with non-resectable pancreatic cancer, we compared two regimens containing either gemcitabine (GEM) or S-1., Methods: We developed a decision tree that showed the clinical processes of non-resectable pancreatic cancer patients. We calculated the probabilities of endpoint and life months gained (LMG) based on previously reported articles. To estimate the costs, we analyzed medical records of 44 inpatients with non-resectable pancreatic cancer treated with GEM(n=34)or S-1(n=10). Sensitivity analysis was used to check the robustness of the results., Results: In the GEM group and S-1 group, costs were 1,636,393 and 985,042 yen, and LMG was 6. 0 and 9. 0 months, respectively. Thus, the cost-effectiveness ratio(CER)was calculated to be 272,732 and 109,449 yen/LMG, respectively, and the incremental cost effectiveness ratio (ICER) was -217,117 yen/LMG. The sensitivity analysis showed that the result was definitely robust., Conclusion: Our findings suggest that the markedly cost-effective S-1 regimen could prolong LMG with less cost than the GEM regimen.
- Published
- 2010
34. [Biosynthesis and function of long-chain polyunsaturated fatty acids in cold-adapted bacteria].
- Author
-
Kurihara T, Kawamoto J, and Esaki N
- Subjects
- Adaptation, Physiological, Cell Division, Cell Membrane, Cold Temperature, Eicosapentaenoic Acid biosynthesis, Eicosapentaenoic Acid chemistry, Eicosapentaenoic Acid physiology, Fatty Acids, Unsaturated chemistry, Membrane Fluidity, Phospholipids physiology, Shewanella cytology, Fatty Acids, Unsaturated biosynthesis, Fatty Acids, Unsaturated physiology, Seawater microbiology, Shewanella metabolism
- Published
- 2010
35. [Proteins and phospholipids involved in cold-adaptation of psychrotrophic bacteria].
- Author
-
Kurihara T, Kawamoto J, and Esaki N
- Subjects
- Bacterial Proteins biosynthesis, Diffusion, Membrane Fluidity, Shewanella enzymology, Shewanella metabolism, Adaptation, Biological, Bacterial Proteins physiology, Cold Temperature, Phospholipids physiology, Shewanella physiology
- Published
- 2009
36. [Approach to alternative therapies in community pharmacy].
- Author
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Noda T, Takaichi K, Nakamura M, Karasawa H, Okamoto Y, Mizuno S, Kurihara T, Makino T, Hirano T, and Iseki K
- Subjects
- Catechin, Humans, Surveys and Questionnaires, Ubiquinone analogs & derivatives, Community Pharmacy Services, Complementary Therapies, Dietary Supplements, Drug Information Services, Pharmacists
- Abstract
The growth of the dietary supplement in Japanese market suggests that the patient's need for assistance with self-care will also continue to grow. Patients' burgeoning acceptance and use of alternative therapies is another indication that patients seeking more from the health care system. The questionnaire showed that the most of them are expecting the pharmacists to provide their knowledge of dietary supplements. However, only limited amount of information is available. We founded the group Alterna in 2003, that compose the pharmacists working in community pharmacies accompanied with those in pharmaceutical universities. We have published the journal named "Alterna" that includes the information of dietary supplements, and it attained Vol. 9 in 2008. In the past studies, we evaluated the content and solubility of coenzyme Q10 dietary supplements in Japanese markets, some of which showed poor solubility. In others, we had taken up the information about vitamin and minerals, tea catechins, DHA and EPA, cooking oils to reduce body fat, collagen, etc. Findings in these studies present the opportunities for the pharmacists to provide the significant positive impact on health care outcomes and costs to patients.
- Published
- 2009
- Full Text
- View/download PDF
37. [A case of miliary tuberculosis difficult to distinguish from metastatic lung cancer].
- Author
-
Nanba F, Ishiga M, Kishimoto M, Kurihara T, Tamada S, and Okimoto N
- Subjects
- Aged, 80 and over, Diagnosis, Differential, Female, Humans, Lung Neoplasms pathology, Neoplasm Metastasis, Lung Neoplasms complications, Lung Neoplasms diagnosis, Tuberculosis, Miliary complications, Tuberculosis, Miliary diagnosis, Tuberculosis, Pulmonary complications, Tuberculosis, Pulmonary diagnosis
- Abstract
We report a case of the coexistence of pulmonary tuberculosis and lung cancer maked a wrong diagnosis of lung cancer and metastatic lung carcinoma. The patient was a 80-years-old woman who had ascites and anorexia and decreased weight. Chest CT film showed a mass shadow in the right S, and infiltrative shadows on bilateral lung fields. FDG-PET revealed the tumor in the right lower lung field and many infiltrative shadows in all lung fields, and showed that FDG accumulated diffusely along the peritoneum. We made a diagnosis of lung cancer and metastatic lung carcinoma. However we obtained a diagnosis of coexisting of pulmonary tuberclosis and lung cancer autopsy. When the patient has a shadow suggestive of lung tumor shadow with many infiltrative shadows, we tend to make a diagnosis of lung cancer and metastatic lung carcinoma. We saw the importance of a postmortem examination in a new light.
- Published
- 2009
38. [Function of phospholipids containing polyunsaturated fatty acids in cold-adapted bacteria].
- Author
-
Kurihara T
- Subjects
- Eicosapentaenoic Acid biosynthesis, Phospholipids biosynthesis, Shewanella metabolism, Adaptation, Physiological, Cold Temperature, Eicosapentaenoic Acid physiology, Phospholipids physiology, Shewanella physiology
- Published
- 2009
39. [Clinical effects of continuous infusion and intermittent infusion of meropenem on bacterial pneumonia in the elderly].
- Author
-
Okimoto N, Ishiga M, Nanba F, Kibayashi T, Kishimoto M, Kurihara T, Honda Y, Asaoka N, and Tamada S
- Subjects
- Aged, Aged, 80 and over, Community-Acquired Infections drug therapy, Female, Humans, Infusions, Intravenous, Male, Meropenem, Random Allocation, Anti-Bacterial Agents administration & dosage, Pneumonia, Bacterial drug therapy, Thienamycins administration & dosage
- Abstract
We compared the clinical effects of continuous infusion and intermittent infusion of meropenem (MEPM) on bacterial pneumonia in the elderly. The subjects were elderly patients (over 65) with moderate community-acquired bacterial pneumonia whose performance status was 3 or 4. They were randomly divided into an intermittent group (0.5 g MEPM was infused morning and evening) and a continuous infusion group (1.0 g/day over 24 hours was infused continuously), and the clinical effects were reviewed prospectively. Clinical efficacy on the third day was 64.0% in the intermittent infusion group and 72.0% in the continuous infusion group, and the overall clinical efficacy was 76.0% in the intermittent infusion group and 80.0% in the continuous infusion group. Administration periods were 13.2 +/- 5.7 days in the intermittent infusion group and 12.1 +/- 4.5 days in the continuous infusion group. These results show no statistically significant difference, and suggest that continuous infusion of MEPM did not have better clinical effect than intermittent administration twice a day in the treatment of elderly patients with moderate community-acquired bacterial pneumonia.
- Published
- 2009
40. [Q fever in hospital-acquired pneumonia].
- Author
-
Okimoto N, Nanba F, Kibayashi T, Kishimoto M, Yamato K, Kurihara T, Honda Y, Osaki K, and Asaoka N
- Subjects
- Aged, Aged, 80 and over, Female, Humans, Male, Middle Aged, Cross Infection diagnosis, Pneumonia diagnosis, Q Fever diagnosis
- Abstract
We studied the effects of Q fever in hospital-acquired pneumonia. The subjects consisted of 121 cases with hospital-acquired pneumonia treated during the period from December 2004 till June 2007. Q fever was diagnosed using a PanBio Coxiella burnetii ELISA test kit. There were no patients with acute infection by Coxiella burnetii. It is concluded that C. burnetii cannot induce onset of hospital-acquired pneumonia.
- Published
- 2008
41. [Clinical effects of intravenous ciprofloxacin on community-acquired pneumonia with positive Immunocard Mycoplasma test results].
- Author
-
Okimoto N, Nanba F, Kibayashi T, Kishimoto M, Yamato K, Kurihara T, Honda Y, Osaki K, and Asaoka N
- Subjects
- Adult, Aged, Aged, 80 and over, Anti-Infective Agents adverse effects, Biomarkers blood, Ciprofloxacin adverse effects, Female, Humans, Immunoglobulin M blood, Injections, Intravenous, Male, Middle Aged, Mycoplasma immunology, Prospective Studies, Treatment Outcome, Anti-Infective Agents administration & dosage, Ciprofloxacin administration & dosage, Community-Acquired Infections diagnosis, Community-Acquired Infections drug therapy, Immunoenzyme Techniques methods, Mycoplasma Infections diagnosis, Mycoplasma Infections drug therapy, Pneumonia, Bacterial diagnosis, Pneumonia, Bacterial drug therapy
- Abstract
We studied the clinical effects of intravenous ciprofloxacin (CPFX) on community-acquired pneumonia in patients with positive Immunocard Mycoplasma test results. The subjects were 35 patients (59.4 +/- 24.8 years old) with community-acquired pneumonia with positive Immunocard Mycoplasma test results. We infused CPFX 300mg copy intravenously twice daily for 3-14 days. It was effective in 33 of 35 patients, with an efficacy rate of 94.3%. Adverse reactions consisted of itching in 2 patients, malaise in 2 patients, drug eruption in 1 patient, elevation of GPT in 1 patient and elevation of BUN in 1 patient, but all were mild. We conclude that intravenous CPFX is useful for community-acquired pneumonia in case with positive Immunocard Mycoplasma test results.
- Published
- 2008
42. [Study of the cases with multidrug-resistant Pseudomonas aeruginosa by sputum culture].
- Author
-
Okimoto N, Nanba F, Kibayashi T, Kishimoto M, Yamato K, Kurihara T, Honda Y, Osaki K, and Asaoka N
- Subjects
- Adult, Aged, Amikacin pharmacology, Cilastatin pharmacology, Cilastatin, Imipenem Drug Combination, Ciprofloxacin pharmacology, Drug Combinations, Female, Hospitals, University, Humans, Imipenem pharmacology, Japan, Klebsiella pneumoniae isolation & purification, Male, Methicillin Resistance, Middle Aged, Prognosis, Pseudomonas aeruginosa drug effects, Retrospective Studies, Staphylococcus aureus isolation & purification, Time Factors, Drug Resistance, Multiple, Bacterial, Pneumonia, Bacterial microbiology, Pseudomonas aeruginosa isolation & purification, Sputum microbiology
- Abstract
We evaluated the clinical features of multidrug-resistant Pseudomonas aeruginosa cases determined by sputum culture between April, 2005 and December, 2006. The clinical features of most cases were: (1) pneumonia in the elderly with cerebrovascular diseases, (2) previous administration of carbapenems and antipseudomonal cephems, (3) PIPC, CAZ and ISP sensitve MDRP, (4) MRSA was isolated concurrently, (5) not necessary of therapy against MDRP, (6) good outcome.
- Published
- 2007
43. [Positive phase periods of ImmunoCard Mycoplasma tests].
- Author
-
Okimoto N, Kibayashi T, Kishimoto M, Yamato K, Kurihara T, Mimura K, Honda Y, Osaki K, and Asaoka N
- Subjects
- Adolescent, Adult, Aged, Aged, 80 and over, Female, Humans, Male, Middle Aged, Immunoenzyme Techniques, Pneumonia, Mycoplasma immunology
- Abstract
We evaluated the positive phase period of ImmunoCard Mycoplasma tests. The subjects were 74 penumonia patients (male : 38, female : 36, 17-94 years old) with positive ImmunoCard Mycoplasma tests. ImmunoCard Mycoplasma tests were performed every week for 8 weeks later, then every 4 weeks until negative conversion. The positive phase period was within a week in 30 of 74 patients (40.5%) and within 4 weeks in 52 patients (70.3%). In each generation the positive phase period of the most patients was within a week. The positive phase period of the elderly had no tendency to be longer than that of the young patients. These results indicated that about half of the patients with positive ImmunoCard Mycoplasma tests showed Mycoplasma infection which occurred within the past 1 week.
- Published
- 2007
44. [Testing for Mycoplasma pneumonia using the ImmunoCard Mycoplasma rapid test].
- Author
-
Okimoto N, Kibayashi T, Kishimoto M, Yamato K, Kurihara T, Mimura K, Honda Y, Osaki K, and Asaoka N
- Subjects
- Adolescent, Adult, Aged, Aged, 80 and over, Enzyme-Linked Immunosorbent Assay, Humans, Middle Aged, Reagent Kits, Diagnostic, Seasons, Serologic Tests methods, Antibodies, Bacterial blood, Community-Acquired Infections diagnosis, Mycoplasma pneumoniae immunology, Pneumonia, Mycoplasma diagnosis
- Abstract
We evaluated the effectiveness of ImmunoCard Mycoplasma rapid tests in all patients admitted with community-acquired pneumonia (CAP) between January, 2004 and December, 2005. ImmunoCard Mycoplasma rapid tests were performed on the 1st day of admission and we analyzed the frequency of positive cases among CAP cases according to month and age. A total of 82 of 270 (33.7%) and 41 of 257 (16.0%) were positive among CAP cases in 2004 and 2005, respectively. More positive cases were seen between spring and early summer and in cases aged 70 years or more, especially those over 80 years old. These results indicated that further evaluation is required among positive cases in elder group.
- Published
- 2007
45. [Case of submucosal esophageal carcinoma with multiple liver metastasis showing high serum levels of CEA and CA19-9].
- Author
-
Kurihara T, Ishii S, Ozawa T, Tsubo K, Fukushima Y, Funatomi H, Kagaya T, Ohike N, and Takahashi M
- Subjects
- Carcinoma, Squamous Cell diagnosis, Carcinoma, Squamous Cell pathology, Esophageal Neoplasms diagnosis, Fatal Outcome, Humans, Liver Neoplasms diagnosis, Liver Neoplasms pathology, Male, Middle Aged, Neoplasm Staging, Biomarkers, Tumor blood, CA-19-9 Antigen blood, Carcinoembryonic Antigen blood, Carcinoma, Squamous Cell secondary, Esophageal Neoplasms pathology, Liver Neoplasms secondary
- Abstract
A 57-year-old man was admitted because of abdominal fullness. An abdominal ultrasonographic study disclosed multiple space-occupying lesions (SOL) in the liver. On blood examinationC the serum levels of CEA and CA19-9 were significantly high while those of AFP and SCC were within normal ranges. Endoscopically biopsied specimens of the lower esophagus histologically revealed poorly differentiated squamous cell carcinoma. Pathohistologically similar findings were obtained from the needle biopsied specimen of the SOL in the liver. Thus the patient was diagnosed as having squamous cell carcinoma of the esophagus with liver metastasis. On the 41st hospital day the patient died and an autopsy was performed. Although multiple metastases were recognized, cancer cells were limited within the submucosa of the esophagus. Immunostaining of CEA and CA19-9 was positive on the carcinoma cells both in the esophagus and the liver. Thus a relation between the biological malignancy of esophageal cancer and serum levels of CEA and CA19-9 was suggested.
- Published
- 2007
46. [A case of primary HIV infection presenting as mononeuritis multiplex].
- Author
-
Sugimoto H, Konno S, Takamiya K, Nemoto H, Wakata N, and Kurihara T
- Subjects
- Adult, Anti-HIV Agents therapeutic use, HIV Infections drug therapy, Humans, Male, HIV Infections diagnosis, HIV Seropositivity drug therapy, Mononeuropathies diagnosis
- Abstract
A 34-year-old man presented with gait disturbance. He had a low grade fever and diarrhea for a few days prior to admission. Two weeks after he started to have diarrhea, he developed gait disturbance with a left foot drop. The cerebrospinal fluid obtained on admission showed pleocytosis (30/microl) and increased protein. The motor nerve conduction velocities (MCV) of the left peroneal nerve and the tibial nerve were slow, but the right peroneal and tibial MCVs were within normal limits. A test for human immunodeficiency virus (HIV) antibody was positive. The Western blot was positive with bands of gp160 and p24, confirming HIV infection. Seroconversion-related neuropathy of HIV was diagnosed. Acute HIV infection should be included in the differential diagnosis of mononeuritis multiplex. Before full-fledged AIDS development, it is important to find early stage of HIV infection in patients, so that we can treat them more effectively by means of anti-HIV drugs.
- Published
- 2006
47. [Devices for the safe performance of self-injection of interferon therapy for chronic hepatitis C].
- Author
-
Kurihara T, Mikata R, and Yokosuka O
- Subjects
- Antiviral Agents adverse effects, Humans, Injections, Intramuscular, Interferon alpha-2, Interferon-alpha adverse effects, Patient Education as Topic, Polyethylene Glycols adverse effects, Practice Guidelines as Topic, Prognosis, Recombinant Proteins, Self Administration, Antiviral Agents administration & dosage, Hepatitis C, Chronic drug therapy, Interferon-alpha administration & dosage, Polyethylene Glycols administration & dosage
- Abstract
Long-term interferon therapy is an alternative therapy for patients with chronic hepatitis C who can not tolerate to the combination of pegylated interferon and ribavirin. In 2005, self-injection of interferon for chronic hepatitis C was covered by public health insurance in Japan making the long-term interferon therapy easier to perform. For the safe performance of self-injection, education about knowledge on various adverse effects of interferon, training for actual performance of self-injection, and close contact between the patients and doctors are indispensable. In this review, we briefly summarized why self-injection is needed and how the training for safe self-injection of interferon should be performed.
- Published
- 2006
48. [Clinical effect of continuous infusion of meropenem on bacterial pneumonia in the elderly].
- Author
-
Okimoto N, Kibayashi T, Mimura K, Yamato K, Kurihara T, Honda Y, Osaki K, Asaoka N, and Ohba H
- Subjects
- Aged, Aged, 80 and over, Community-Acquired Infections microbiology, Cross Infection drug therapy, Cross Infection microbiology, Drug Administration Schedule, Female, Humans, Infusions, Intravenous, Male, Meropenem, Pneumonia, Bacterial microbiology, Prospective Studies, Community-Acquired Infections drug therapy, Pneumonia, Bacterial drug therapy, Thienamycins administration & dosage
- Abstract
We studied the clinical effect of continuous infusion over 24 hours of meropenem (MEPM) on bacterial pneumonia in the elderly (over 65). The subjects were 26 patients (community-acquired pneumonia: moderate, n = 9; severe, n= 4; hospital-acquired pneumonia: group III, n = 13) whose performance status was 3 or 4. MEPM 1.0g/day was infused continuously for 7-14 days, and its clinical efficacy, bacteriological efficacy, and side effects were examined prospectively. It was effective in 23 of the 26 patients (community-acquired pneumonia: moderate, 8/9; severe, 3/4; hospital-acquired pneumonia: group III, 12/13; efficacy rate: 88.5%). Bactericidal effects were obtained in 3 strains of Klebsiella pneumoniae, 2 strains of Streptococcus pneumoniae, 2 strains of methicillin-sensitive Staphlococcus aureus, 1 strain of Streptococcus agalactiae and 1 strain of Proteus mirabilis, but not in 2 strains of methicillin-resistant S. aureus, 1 strain of Pseudomonas aeruginosa and 1 strain of Serratia marcescens. Mild abnormal laboratory findings were observed in 2 patients: elevation of GPT, gamma-GTP, BUN and elevation of ALP. Based on the above, continuous infusion of MEPM on bacterial pneumonia in the elderly obtained excellent clinical effects. Further study is needed to compare the efficacy of continuous versus intermittent administration of MEPM.
- Published
- 2006
49. [Postgraduate education for neurologists in hospitals authorized by the Japanese Society of Neurology].
- Author
-
Shinohara Y, Hirata K, Kurihara T, Itoyama Y, and Kunimoto M
- Subjects
- Curriculum, Humans, Japan, Education, Medical, Graduate, Hospitals, Teaching standards, Neurology education, Societies, Medical, Surveys and Questionnaires
- Abstract
To evaluate postgraduate education for neurologists, we performed a questionnaire-based investigation in hospitals authorized by the Japanese Society of Neurology. The response rate to the questionnaire was 91%. The number of board-certified neurologists is usually less than 5, even in the authorized teaching hospitals. Most respondents thought that the postgraduate training programs already existing in many teaching hospitals are insufficient, but nevertheless useful. More staff may be needed for postgraduate education in neurology. The respondents considered that neurological education has generally functioned well, except in certain areas such as brain death judgment. On the other hand, the rotation of training in neurosurgery, psychiatry and child neurology is still inadequate. The problem of devising a suitable training rotation system in postgraduate education for neurologists has not yet been solved.
- Published
- 2006
50. [Q fever in acute exacerbation of chronic lower respiratory tract infection].
- Author
-
Okimoto N, Kibayashi T, Mimura K, Yamato K, Kurihara T, Honda Y, Osaki K, Asaoka N, and Ohba H
- Subjects
- Acute Disease, Adult, Aged, Aged, 80 and over, Coxiella burnetii immunology, Enzyme-Linked Immunosorbent Assay, Female, Humans, Immunoglobulin M blood, Male, Middle Aged, Q Fever diagnosis, Respiratory Tract Infections pathology, Q Fever etiology, Respiratory Tract Infections complications
- Abstract
We studied the effect of Q fever in acute exacerbation of chronic lower respiratory tract infection. The subjects consisted of 80 cases with acute exacerbation of chronic lower respiratory tract infection treated during the period from March 2002 till October 2004. Q fever was diagnosed using a PanBio Coxiella burnetii ELISA test kit. Two cases (2.5%) were positive for IgM in the acute stage, and were diagnosed as having acute infection by C. burnetii. They were elderly women with bronchiectasis, aged 76 and 82. They had no history of keeping cats or dogs, but the onset of acute exacerbation of chronic lower respiratory tract infection was June and March which is the breeding seasons for cats and dogs. Acute exacerbation of chronic lower respiratory tract infection were considerd to be a mixed infection with Pseudomonas aeruginosa (the 76-year-case) and Haemophilus influenzae (the 82-year-case). It is concluded that C. burnetii can induce exacerbation of chronic lower respiratory tract infection, their cases were considerd to be mixed infection with C. burnetii and other bacteria.
- Published
- 2005
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