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Shiraishi W, Tsujimoto Y, Matsuyoshi A, Hashimoto T. Case of elderly onset possible neuro-Behçet's disease with HLA-B51 homozygosity. BMJ Case Rep 2023; 16:16/6/e252033. [PMID: 37263675 DOI: 10.1136/bcr-2022-252033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023] Open
Abstract
Behçet's disease commonly affects 20-40-year-old men and shows ophthalmo-dermatological manifestations. Here, we report a man in his 70s with acute onset of dysarthria, dysphagia and hemiplegia showing brainstem and subcortical lesions, which responded to steroid and colchicine therapy. He had a history of uveitis and was homozygous for the human leucocyte antigen-B51 allele, and we clinically diagnosed him with acute neuro-Behçet's disease. Old-age onset neuro-Behçet's disease is uncommon, and as far as we know, this is the oldest case of the first attack of neuro-Behçet's disease. Clinicians should consider Behçet's disease even for elderly patients.
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Affiliation(s)
- Wataru Shiraishi
- Depaartment of Neurology, Kokura Memorial Hospital, Kitakyushu, Japan
| | | | - Ayano Matsuyoshi
- Depaartment of Neurology, Kokura Memorial Hospital, Kitakyushu, Japan
| | - Tetsuya Hashimoto
- Depaartment of Neurology, Kokura Memorial Hospital, Kitakyushu, Japan
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Kanematsu R, Hanakita J, Takahashi T, Minami M, Suda I, Nakamura S, Takeuchi S, Tsujimoto Y. Retro-odontoid pseudotumor presenting double layer on MRI: A case report. Surg Neurol Int 2022; 13:446. [DOI: 10.25259/sni_756_2022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Accepted: 09/10/2022] [Indexed: 11/04/2022] Open
Abstract
Background:
Retro-odontoid pseudotumors (ROPs) typically present as a single mass posterior to the odontoid ranging from isointense to hypointense relative on T1-weighted magnetic resonance (MR) imaging (MRI T1WI). Here, a patient with ROP exhibited the double-layer sign on the MRI T1WI characterized by an initial ventral layer posterior to the odontoid process followed by a secondary dorsal layer.
Case Description:
An 84-year-old male presented with cervical myelopathy attributed to ROP resulting in atlantoaxial instability on dynamic X-ray studies, and the double-layer sign on the T1 MR accompanied by a cystic component. MR following C1–C2 posterior fusion, the patient’s myelopathy resolved and both layers spontaneously regressed on the follow-up MR studies.
Conclusion:
The MR-documented double layer sign with ROP, likely attributable to reactive hypertrophy of the transverse ligament with cystic components, may demonstrate spontaneous MR regression with symptom resolution following a C1–C2 posterior fusion.
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Sano N, Ikeda H, Tsujimoto Y, Hayase M, Torikoshi S, Morikawa T, Okoshi T, Nishimura M, Toda H. Ruptured fungal mycotic internal carotid artery aneurysm successfully treated with stent-assisted coil embolization: A case report. Surg Neurol Int 2022; 13:392. [PMID: 36128098 PMCID: PMC9479563 DOI: 10.25259/sni_567_2022] [Citation(s) in RCA: 0] [Impact Index Per Article: 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: 06/21/2022] [Accepted: 08/18/2022] [Indexed: 11/04/2022] Open
Abstract
Background:
Ruptured intracranial fungal mycotic aneurysms have a high mortality rate. It has been reported that the number of opportunistic infections has increased. Here, we report the first case of a patient in which a ruptured fungal carotid artery aneurysm was successfully treated by stent-assisted coil embolization.
Case Description:
A 76-year-old male receiving dual antiplatelet therapy due to a recent percutaneous transluminal angioplasty presented with blurred vision of the right eye and diplopia. Magnetic resonance imaging revealed a fungal mass in the sphenoid sinus, and the patient was pathologically diagnosed with invasive aspergillosis. After receiving oral voriconazole for 4 weeks, he was admitted to the hospital with hemorrhagic shock from epistaxis. The right internal carotid artery angiography revealed a de novo irregularly shaped aneurysm at the cavernous portion, projecting into the sphenoid sinus, which was considered to be the source of bleeding. Due to the lack of ischemic tolerance and urgent demand for hemostasis, we performed a stent-assisted coil embolization of the aneurysm without interrupting the blood flow. Postoperatively, the patient had no neurological deficit, and treatment with voriconazole was continued for 12 months without rebleeding.
Conclusion:
Stent-assisted coil embolization without parent artery occlusion might be a promising option for the urgent treatment of ruptured fungal mycotic aneurysms. Long-term administration of voriconazole might be continued for 12 months for such patients.
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Affiliation(s)
- Noritaka Sano
- Department of Neurousurgery, Japanese Red Cross Fukui Hospital, Fukui,
- Department of Neurosurgery, Kyoto University Graduate School of Medicine, Kyoto,
| | - Hiroyuki Ikeda
- Department of Neurousurgery, Japanese Red Cross Fukui Hospital, Fukui,
| | | | - Makoto Hayase
- Department of Neurousurgery, Japanese Red Cross Fukui Hospital, Fukui,
| | | | - Taiyo Morikawa
- Department of Otorhinolaryngology, Japanese Red Cross Fukui Hospital, Fukui, Japan,
| | - Tadakazu Okoshi
- Department of Pathology, Japanese Red Cross Fukui Hospital, Fukui, Japan
| | - Masaki Nishimura
- Department of Neurousurgery, Japanese Red Cross Fukui Hospital, Fukui,
| | - Hiroki Toda
- Department of Neurousurgery, Japanese Red Cross Fukui Hospital, Fukui,
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Tomoyose R, Miyata T, Shiraishi W, Ogura T, Koga N, Agawa Y, Umemura T, Tsujimoto Y, Nakajima H, Sakamoto H, Wakabayashi T, Nakazawa Y, Hatano T. Gadolinium-enhanced MR improved motion sensitized driven equilibrium (iMSDE) for intracranial vessel imaging in giant cell arteritis. J Stroke Cerebrovasc Dis 2022; 31:106697. [PMID: 35939958 DOI: 10.1016/j.jstrokecerebrovasdis.2022.106697] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2022] [Revised: 07/23/2022] [Accepted: 07/29/2022] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND Giant cell arteritis (GCA) generally affects extracranial large and medium-sized vessels. It rarely causes intracranial vessel stenosis, presenting as cerebral infarction (CI). Consequently, accurate diagnosis of CI induced by GCA is often challenging. Improved motion-sensitized driven-equilibrium (iMSDE) is one of the advanced high-resolution magnetic resonance (MR) vessel wall imaging techniques that enables direct visualization of the vessel wall because of a strong reduction in blood flow artifacts, leading to higher quality images. Herein, we effectively used gadolinium-enhanced MR iMSDE imaging to diagnose a patient presenting with recurrent CI due to right intracranial internal carotid artery (ICA) stenosis as GCA. CASE DESCRIPTION A 64-year-old man with polymyalgia rheumatica for several years and who had experienced CI due to moderate intracranial ICA stenosis one year ago, presented to the emergency room with dysarthria and left hemiparesis. Diffusion-weighted MR imaging showed high signals in the right centrum ovale, and MR angiography revealed severe stenosis of the right intracranial ICA. Gadolinium-enhanced MR iMSDE imaging showed marked concentric enhancement in the vessel wall of the right stenosed ICA, which led to a definitive diagnosis of GCA via biopsy from the right superficial temporal artery. The patient's symptoms gradually improved after initiation of steroid treatment. Three months later, gadolinium-enhanced MR iMSDE imaging revealed improvement in the contrast enhancement in the vessel wall and vascular stenosis. CONCLUSION Gadolinium-enhanced MR iMSDE imaging is useful to diagnose and evaluate GCA with intracranial vessel involvement.
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Affiliation(s)
- Ryuta Tomoyose
- Department of Neurosurgery, Kokura Memorial Hospital, 3-2-1 Asano, Kokurakita-ku, Kitakyusyu-City, Fukuoka 802-0001, Japan.
| | - Takeshi Miyata
- Department of Neurology, Kokura Memorial Hospital, Fukuoka, Japan
| | - Wataru Shiraishi
- Department of Neurology, Kokura Memorial Hospital, Fukuoka, Japan
| | - Takenori Ogura
- Department of Neurology, Kokura Memorial Hospital, Fukuoka, Japan
| | - Noriyuki Koga
- Department of Neurology, Kokura Memorial Hospital, Fukuoka, Japan
| | - Yuji Agawa
- Department of Neurology, Kokura Memorial Hospital, Fukuoka, Japan
| | - Takeru Umemura
- Department of Neurology, Kokura Memorial Hospital, Fukuoka, Japan
| | | | | | - Hiroki Sakamoto
- Department of Neurology, Kokura Memorial Hospital, Fukuoka, Japan
| | | | - Yusuke Nakazawa
- Department of Neurology, Kokura Memorial Hospital, Fukuoka, Japan
| | - Taketo Hatano
- Department of Neurology, Kokura Memorial Hospital, Fukuoka, Japan
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Inoue T, Taguchi S, Uemura M, Tsujimoto Y, Yamashita Y. P-185 The migration speed of nucleolar precursor bodies in pronuclei affects in vitro fertilization-derived human embryo ploidy status. Hum Reprod 2022. [DOI: 10.1093/humrep/deac107.178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Study question
Does the migration speed of nucleolar precursor bodies (NPBs) in male and female pronuclei (mPN and fPN) affect in vitro fertilization (IVF)-derived embryo ploidy status?
Summary answer
The NPB migration speed in mPN impacts the IVF-derived human embryo ploidy status and this indicator could be an attractive marker for noninvasive embryo selection.
What is known already
NPBs are not considered as simple nucleolar components transmitted from an oocyte to an embryo, and they could participate in genome remodeling during embryo development. NPBs are essential only shortly after fertilization, suggesting that they may actively participate in centromeric chromatin establishment. A previous study demonstrated that NPBs migrated faster in intracytoplasmic sperm injection-derived zygotes having the potential to develop into a blastocyst and eventually into a baby (Inoue et al., 2021). However, the relationship between NPB migration speed and IVF-derived embryo ploidy status is unclear.
Study design, size, duration
The relationship between the NPB migration speed and embryo ploidy status was retrospectively analyzed in patients with recurrent assisted reproductive technology failure (euploid n =18; aneuploid n =19; and total = 219 NPBs). Archived time-lapse videos (images were recorded every 5 min; Geri+) from incubation after IVF were retrieved after the patients were identified for the study, and the NPB migration speed was analyzed. The retrospective analyses were performed with the patient’s identities masked.
Participants/materials, setting, methods
mPN and fPN were identified by appearance location in a zygote (fPN appearance is just below the polar bodies). The mPN, fPN, and 2–3 NPBs/PN central coordinates were measured by Kinovea (motion capture software). Their central coordinates were confirmed/revised every image and were decided. The migration distance of NPBs between two sequential images was calculated as the standard of the central PN coordinates. Thereafter, the migration speed of NPBs was calculated.
Main results and the role of chance
Both NPB speeds were significantly faster in the euploid than in the aneuploid groups (mPN: 4.08±0.61 vs. 3.54±0.54 µm/h, P =0.003, power [1-β]: 0.999, fPN: 4.03±0.89 vs. 3.26±0.45 µm/h, P <0.003, 1-β: 0.987). The NPB speed in mPN was correlated with that in fPN (rs =0.523, P =0.001). The ploidy status was related to the NPB speeds in mPN and fPN (P <0.05) in univariate logistic analysis including male/female ages, ICM/TE grades, and 29 morphokinetic parameters. The factors associated with ploidy status were the NPB speed in mPN (odds ratio [OR], 10.2; 95% confidence interval [CI], 1.90–54.90; P =0.007) and female age (OR, 0.8; 95%CI, 0.64–0.98; P =0.03) in multivariate logistic analysis. The cutoff value for the NPB speeds in mPN and fPN were 3.65 μm/h (specificity, 73.7%; sensitivity, 77.8%; AUC, 0.78; 95%CI, 0.62–0.93) and 3.77 μm/h (specificity, 89.5%; sensitivity, 66.7%; AUC, 0.78; 95%CI, 0.62–0.94). When the zygotes were categorized by their cutoff values, the euploid rate in zygotes with NPB speeds greater than the cutoff value was significantly higher than that in zygotes with the speeds less than the cutoff value (mPN = 73.7% vs. 22.2% [P =0.003]; fPN = 85.7% vs. 26.1% [P <0.001]).
Limitations, reasons for caution
The NPB migration in the z-axis direction could not be analyzed. NPB tracking could not be performed when NPBs were large in number or drastically moved. Our findings should help in elucidating the relationship, although they did not completely explain the relationship between NPB migration and embryo development.
Wider implications of the findings
The migration speed of NPBs impacts human embryo ploidy status. NPB migration speed may add clinical value for embryo selection, which may be associated with live birth, and consequently, the time of the live birth could be shorter. The indicator could be an attractive marker for noninvasive embryo selection.
Trial registration number
Not applicable
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Affiliation(s)
- T Inoue
- Umeda Fertility Clinic, Department of Gynecology , Osaka, Japan
- Hyogo College of Medicine, Department of Emergency- Disaster and Critical Care Medicine , Nishinomiya, Japan
| | - S Taguchi
- Umeda Fertility Clinic, Department of Gynecology , Osaka, Japan
| | - M Uemura
- Kansai University of Welfare Sciences, Department of Rehabilitation- Faculty of Health Science , Osaka, Japan
| | - Y Tsujimoto
- Umeda Fertility Clinic, Department of Gynecology , Osaka, Japan
| | - Y Yamashita
- Umeda Fertility Clinic, Department of Gynecology , Osaka, Japan
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Umemura T, Hatano T, Ogura T, Miyata T, Agawa Y, Nakajima H, Tomoyose R, Sakamoto H, Tsujimoto Y, Nakazawa Y, Wakabayashi T, Hashimoto T, Fujiki R, Shiraishi W, Nagata I. ADC Level is Related to DWI Reversal in Patients Undergoing Mechanical Thrombectomy: A Retrospective Cohort Study. AJNR Am J Neuroradiol 2022; 43:893-898. [PMID: 35550283 DOI: 10.3174/ajnr.a7510] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Accepted: 03/17/2022] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE In patients with ischemic stroke, DWI lesions can occasionally be reversed by reperfusion therapy. This study aimed to ascertain the relationship between ADC levels and DWI reversal in patients with acute ischemic stroke who underwent recanalization treatment. MATERIALS AND METHODS We conducted a retrospective cohort study in patients with acute ischemic stroke who underwent endovascular mechanical thrombectomy with successful recanalization between April 2017 and March 2021. DWI reversal was assessed through follow-up MR imaging approximately 24 hours after treatment. RESULTS In total, 118 patients were included. DWI reversal was confirmed in 42 patients. The ADC level in patients with reversal was significantly higher than that in patients without reversal. Eighty-three percent of patients with DWI reversal areas had mean ADC levels of ≥520 × 10-6 mm2/s, and 71% of patients without DWI reversal areas had mean ADC levels of <520 × 10-6 mm2/s. The mean ADC threshold was 520 × 10-6 mm2/s with a sensitivity and specificity of 71% and 83%, respectively. In multivariate analysis, the mean ADC level (OR, 1.023; 95% CI, 1.013-1.033; P < .0001) was independently associated with DWI reversal. Patients with DWI reversal areas had earlier neurologic improvement (NIHSS at 7 days) than patients without reversal areas (P < .0001). CONCLUSIONS In acute ischemic stroke, the ADC value is independently associated with DWI reversal. Lesions with a mean ADC of ≥520 × 10-6 mm2/s are salvageable by mechanical thrombectomy, and DWI reversal areas regain neurologic function. The ADC value is easily assessed and is a useful tool to predict viable lesions.
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Affiliation(s)
- T Umemura
- From the Department of Neurosurgery (T.U., T.H., T.O., T.M., Y.A., N.H., R.T., H.S., Y.T., Y.N., T.W., I.N.), Stroke Center, Kokura Memorial Hospital, Kitakyushu City, Japan
| | - T Hatano
- From the Department of Neurosurgery (T.U., T.H., T.O., T.M., Y.A., N.H., R.T., H.S., Y.T., Y.N., T.W., I.N.), Stroke Center, Kokura Memorial Hospital, Kitakyushu City, Japan
| | - T Ogura
- From the Department of Neurosurgery (T.U., T.H., T.O., T.M., Y.A., N.H., R.T., H.S., Y.T., Y.N., T.W., I.N.), Stroke Center, Kokura Memorial Hospital, Kitakyushu City, Japan
| | - T Miyata
- From the Department of Neurosurgery (T.U., T.H., T.O., T.M., Y.A., N.H., R.T., H.S., Y.T., Y.N., T.W., I.N.), Stroke Center, Kokura Memorial Hospital, Kitakyushu City, Japan
| | - Y Agawa
- From the Department of Neurosurgery (T.U., T.H., T.O., T.M., Y.A., N.H., R.T., H.S., Y.T., Y.N., T.W., I.N.), Stroke Center, Kokura Memorial Hospital, Kitakyushu City, Japan
| | - H Nakajima
- From the Department of Neurosurgery (T.U., T.H., T.O., T.M., Y.A., N.H., R.T., H.S., Y.T., Y.N., T.W., I.N.), Stroke Center, Kokura Memorial Hospital, Kitakyushu City, Japan
| | - R Tomoyose
- From the Department of Neurosurgery (T.U., T.H., T.O., T.M., Y.A., N.H., R.T., H.S., Y.T., Y.N., T.W., I.N.), Stroke Center, Kokura Memorial Hospital, Kitakyushu City, Japan
| | - H Sakamoto
- From the Department of Neurosurgery (T.U., T.H., T.O., T.M., Y.A., N.H., R.T., H.S., Y.T., Y.N., T.W., I.N.), Stroke Center, Kokura Memorial Hospital, Kitakyushu City, Japan
| | - Y Tsujimoto
- From the Department of Neurosurgery (T.U., T.H., T.O., T.M., Y.A., N.H., R.T., H.S., Y.T., Y.N., T.W., I.N.), Stroke Center, Kokura Memorial Hospital, Kitakyushu City, Japan
| | - Y Nakazawa
- From the Department of Neurosurgery (T.U., T.H., T.O., T.M., Y.A., N.H., R.T., H.S., Y.T., Y.N., T.W., I.N.), Stroke Center, Kokura Memorial Hospital, Kitakyushu City, Japan
| | - T Wakabayashi
- From the Department of Neurosurgery (T.U., T.H., T.O., T.M., Y.A., N.H., R.T., H.S., Y.T., Y.N., T.W., I.N.), Stroke Center, Kokura Memorial Hospital, Kitakyushu City, Japan
| | - T Hashimoto
- Department of Neurology (T.H., R.F., W.B.), Stroke Center, Kokura Memorial Hospital, Kitakyushu City, Japan
| | - R Fujiki
- Department of Neurology (T.H., R.F., W.B.), Stroke Center, Kokura Memorial Hospital, Kitakyushu City, Japan
| | - W Shiraishi
- Department of Neurology (T.H., R.F., W.B.), Stroke Center, Kokura Memorial Hospital, Kitakyushu City, Japan
| | - I Nagata
- From the Department of Neurosurgery (T.U., T.H., T.O., T.M., Y.A., N.H., R.T., H.S., Y.T., Y.N., T.W., I.N.), Stroke Center, Kokura Memorial Hospital, Kitakyushu City, Japan
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Shiraishi W, Tsujimoto Y, Shiraishi T. Pathological findings of hypertrophic pachymeningitis associated with eosinophilic granulomatosis with polyangiitis. BMJ Case Rep 2021; 14:14/9/e243395. [PMID: 34544704 PMCID: PMC8454454 DOI: 10.1136/bcr-2021-243395] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
The most common neurological manifestation of eosinophilic granulomatosis with polyangiitis (EGPA), formerly called Churg-Strauss syndrome, is mononeuritis multiplex caused by small-vessel vasculitis. In contrast, central nervous system involvement is rare. Among EGPA-associated central nervous system disorders, there are only a few reported cases of hypertrophic pachymeningitis (HP). Here, we report a patient with EGPA with headache and ophthalmoplegia who presented with HP and had a dural biopsy. The biopsy specimen showed lymphocytic inflammatory cell infiltration without EGPA-specific findings, that is, eosinophilic infiltration, granuloma or angiitis. To the best of our knowledge, there are no previous reports of EGPA-associated HP pathology. Here, we report the first case presentation of a patient with EGPA-associated HP with pathological findings.
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Affiliation(s)
- Wataru Shiraishi
- Department of Neurology, Kokura Memorial Hospital, Kitakyushu, Japan
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Torikoshi S, Ikeda H, Otsuka R, Tsujimoto Y, Sano N, Hayase M, Nishimura M, Toda H. Case of a Stuck Coil in the Final Stage of Stent-Assisted Coil Embolization. J Neuroendovasc Ther 2021; 15:659-664. [PMID: 37502368 PMCID: PMC10370563 DOI: 10.5797/jnet.cr.2020-0123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Accepted: 12/21/2020] [Indexed: 07/29/2023]
Abstract
Objective We report a case in which two coils became stuck in a microcatheter at the end of coil embolization for a cerebral aneurysm. Case Presentation Two coils became stuck in the microcatheter at the final stage of stent-assisted coil embolization for an unruptured anterior communicating artery aneurysm. The rear end of a detached coil was near the tip of the microcatheter. The coil inserted next was pushed out of the microcatheter and pulled back into the microcatheter. Then, the rear end of the detached coil and the retracted coil meshed into the microcatheter, and became immobile. The microcatheter and these two coils were removed simultaneously, and coil embolization was finished. Conclusion At the end of coil embolization, the filling rate is relatively high. Insertion of another coil and traction may cause the coils to become stuck in the microcatheter.
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Affiliation(s)
- Sadaharu Torikoshi
- Department of Neurosurgery, Fukui Red Cross Hospital, Fukui, Fukui, Japan
| | - Hiroyuki Ikeda
- Department of Neurosurgery, Fukui Red Cross Hospital, Fukui, Fukui, Japan
- Department of Neurosurgery, Kurashiki Central Hospital, Kurashiki, Okayama, Japan
| | - Ryotaro Otsuka
- Department of Neurosurgery, Fukui Red Cross Hospital, Fukui, Fukui, Japan
| | | | - Noritaka Sano
- Department of Neurosurgery, Fukui Red Cross Hospital, Fukui, Fukui, Japan
| | - Makoto Hayase
- Department of Neurosurgery, Fukui Red Cross Hospital, Fukui, Fukui, Japan
| | - Masaki Nishimura
- Department of Neurosurgery, Fukui Red Cross Hospital, Fukui, Fukui, Japan
| | - Hiroki Toda
- Department of Neurosurgery, Fukui Red Cross Hospital, Fukui, Fukui, Japan
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Tsujimoto Y, Ikeda H, Otsuka R, Kawauchi T, Sano N, Hayase M, Toda H. Two Patients Who Underwent Emergency Stenting for Iatrogenic Cervical Internal Carotid Artery Dissection during Thrombectomy. J Neuroendovasc Ther 2020; 14:222-230. [PMID: 37501697 PMCID: PMC10370654 DOI: 10.5797/jnet.cr.2019-0062] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Accepted: 03/03/2020] [Indexed: 07/29/2023]
Abstract
Objective Iatrogenic artery dissection during reperfusion therapy is one of the complications causing a poor prognosis. We report two cases of emergent stent placement for iatrogenic cervical carotid artery dissection during reperfusion therapy for acute ischemic stroke. Case Presentation Two patients, a 77-year-old woman and a 77-year-old man, were diagnosed with acute major cerebral artery occlusion, and underwent reperfusion therapy. The iatrogenic internal carotid artery dissection was caused by derivation of a 6-Fr catheter and 0.014-inch wire in the tortuous cervical internal carotid artery, and emergent stent placement was performed. Recanalization was confirmed and no deterioration caused by the iatrogenic dissection was found. Conclusion In patients in whom cerebral infarction is localized on MRI, additional stent placement may be effective for preventing adverse events caused by iatrogenic cervical internal carotid artery dissection during reperfusion therapy for intracranial cerebral artery occlusion related to atherosclerotic change.
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Affiliation(s)
| | - Hiroyuki Ikeda
- Department of Neurosurgery, Fukui Red Cross Hospital, Fukui, Japan
| | - Ryotaro Otsuka
- Department of Neurosurgery, Fukui Red Cross Hospital, Fukui, Japan
| | - Takeshi Kawauchi
- Department of Neurosurgery, Fukui Red Cross Hospital, Fukui, Japan
| | - Noritaka Sano
- Department of Neurosurgery, Fukui Red Cross Hospital, Fukui, Japan
| | - Makoto Hayase
- Department of Neurosurgery, Fukui Red Cross Hospital, Fukui, Japan
| | - Hiroki Toda
- Department of Neurosurgery, Fukui Red Cross Hospital, Fukui, Japan
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Tsujimoto Y, Ikeda H, Otsuka R, Kawauchi T, Sano N, Hayase M, Toda H. A Survived Case of Acute Bilateral Internal Carotid Artery Occlusion Treated by Mechanical Thrombectomy. J Neuroendovasc Ther 2020; 14:195-201. [PMID: 37502691 PMCID: PMC10370676 DOI: 10.5797/jnet.cr.2019-0091] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2019] [Accepted: 02/28/2020] [Indexed: 07/29/2023]
Abstract
OBJECTIVE We report a survived case of acute bilateral internal carotid artery occlusion successfully treated by mechanical thrombectomy. CASE PRESENTATION The patient was an 82-year-old right-handed man. Sudden consciousness disturbance and aphasia appeared, and cranial magnetic resonance angiography (MRA) revealed bilateral internal carotid artery occlusion. Cerebral angiography demonstrated occlusion between the cervical and cavernous portions of the bilateral internal carotid artery, and the growth of collateral circulation to the areas where the bilateral internal carotid artery perfused. We performed mechanical thrombectomy first on the left side, which was the main cause of his symptoms and relatively wide ischemic penumbra, and achieved recanalization of the bilateral internal carotid artery and suppressed extensive enlargement of the infarction. CONCLUSION Acute bilateral internal carotid artery occlusion requires an optimal treatment strategy based on the clinical symptoms and preoperative imaging.
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Affiliation(s)
| | - Hiroyuki Ikeda
- Department of Neurosurgery, Fukui Red Cross Hospital, Fukui, Fukui, Japan
| | - Ryotaro Otsuka
- Department of Neurosurgery, Fukui Red Cross Hospital, Fukui, Fukui, Japan
| | - Takeshi Kawauchi
- Department of Neurosurgery, Fukui Red Cross Hospital, Fukui, Fukui, Japan
| | - Noritaka Sano
- Department of Neurosurgery, Fukui Red Cross Hospital, Fukui, Fukui, Japan
| | - Makoto Hayase
- Department of Neurosurgery, Fukui Red Cross Hospital, Fukui, Fukui, Japan
| | - Hiroki Toda
- Department of Neurosurgery, Fukui Red Cross Hospital, Fukui, Fukui, Japan
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Kirubakaran R, Hanakita J, Takahashi T, Minami M, Tsujimoto Y, Kanematsu R. Posterior Arch Screw for Type II Odontoid Fracture: An Alternative Procedure. World Neurosurg 2020; 138:e106-e111. [PMID: 32061955 DOI: 10.1016/j.wneu.2020.02.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2019] [Revised: 02/02/2020] [Accepted: 02/03/2020] [Indexed: 11/30/2022]
Abstract
BACKGROUND/OBJECTIVE Atlantoaxial fusion procedures may be difficult in situations such as high-riding vertebral artery, a narrow C2 pedicle, and the presence of ponticulus posticus-arcuate foramen. With respect to vertebral artery (VA) anomalies, persistent first intersegmental artery, extracranial origin of the posterior inferior cerebellar artery at the C1-C2 level, and fenestration of the VA are all major risk factors for VA injury in C1-C2 fusion surgeries. METHODS To safeguard the VA, we designed the unilateral fusion procedure (all screws lie in the ipsilateral side, either the right side or left side): a unilateral transarticular screw combined with an ipsilateral-side C1 posterior arch screw and a C2 laminar screw (LS), with both C1-C2 screws inserted from opposite side, although the trajectory will be on the same side. In addition to atlantoaxial stabilization with screws and rod, autograft bony fusion was performed on the same side as modified Brook's procedure and augmented with sublaminar tapping. RESULTS We present a series of 3 cases operated for odontoid fracture with associated high risk for fusion on one side alone. The fact that the chance of VA injury is high in transarticular screw, in lateral mass screw, less in pars screw, and pedicle screw is well known. Alternate screw placement to avoid VA injury would be a posterior arch screw for C1 and laminar screw for C2, which was adopted in our technique. CONCLUSIONS We combined a unilateral transarticular screw and modified Brook's procedure with sublaminar tapping for additional augmentation of fusion. We would like to highlight this C1 posterior arch screw as an alternative procedure for atlantoaxial fusion.
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Affiliation(s)
| | - Junya Hanakita
- Spinal Disorders Center, Fujieda Heisei Memorial Hospital, Fujieda City, Japan
| | - Toshiyuki Takahashi
- Spinal Disorders Center, Fujieda Heisei Memorial Hospital, Fujieda City, Japan
| | - Manabu Minami
- Spinal Disorders Center, Fujieda Heisei Memorial Hospital, Fujieda City, Japan
| | - Yoshitaka Tsujimoto
- Spinal Disorders Center, Fujieda Heisei Memorial Hospital, Fujieda City, Japan
| | - Ryo Kanematsu
- Spinal Disorders Center, Fujieda Heisei Memorial Hospital, Fujieda City, Japan
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Ikeda H, Sano N, Torikoshi S, Otsuka R, Tsujimoto Y, Yamashita T, Hayase M, Toda H. Dissection of the Vertebral Artery Fenestration Limb Presenting with Occlusion After Rupture. World Neurosurg 2020; 135:324-329. [PMID: 31901498 DOI: 10.1016/j.wneu.2019.12.133] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Accepted: 12/21/2019] [Indexed: 11/20/2022]
Abstract
BACKGROUND Dissection of a vertebral artery (VA) fenestration is extremely rare. We herein present the first case of a patient who presented with the dissection of a VA fenestration limb accompanied by occlusion after rupture, who was treated with internal trapping of the dissected limb and the parent artery proximal to the fenestration. CASE DESCRIPTION A 55-year-old man presented with sudden headache and altered consciousness. Computed tomography at admission showed subarachnoid hemorrhage. Angiography showed occlusion of the inner limb of the vertebrobasilar junction fenestration, and the occluded ends had a tapered shape, suggesting the occlusion of the dissection of the inner limb after rupture. Angiography immediately before embolization revealed inner limb recanalization with an irregular string sign; thus only the inner limb was embolized. Angiography after embolization showed near-complete suppression of the blood flow in the inner limb; however, a slight antegrade flow through the coil mass was observed in the late phase. The procedure was finished with the expectation of complete occlusion over time with natural heparin reversal. Angiography 8 days after embolization revealed a significant increase in antegrade blood flow through the coil mass within the inner limb. Therefore additional embolization of the parent artery proximal to the fenestration was performed, which achieved complete occlusion. CONCLUSIONS The embolization length was limited and the antegrade blood flow through the other limb remained during internal trapping for the dissected VA fenestration limb; therefore careful observation of the blood flow to the dissected segment after embolization is necessary.
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Affiliation(s)
- Hiroyuki Ikeda
- Department of Neurosurgery, Fukui Red Cross Hospital, Fukui, Japan.
| | - Noritaka Sano
- Department of Neurosurgery, Fukui Red Cross Hospital, Fukui, Japan
| | | | - Ryotaro Otsuka
- Department of Neurosurgery, Fukui Red Cross Hospital, Fukui, Japan
| | | | | | - Makoto Hayase
- Department of Neurosurgery, Fukui Red Cross Hospital, Fukui, Japan
| | - Hiroki Toda
- Department of Neurosurgery, Fukui Red Cross Hospital, Fukui, Japan
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Ragurajaprakash K, Hanakita J, Takahashi T, Ueno M, Minami M, Tomita Y, Tsujimoto Y, Kanematsu R. Giant Invasive Sacral Schwannoma with Aortic Bifurcation Compression and Hydronephrosis. World Neurosurg 2019; 135:267-272. [PMID: 31883482 DOI: 10.1016/j.wneu.2019.12.088] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Accepted: 12/15/2019] [Indexed: 11/18/2022]
Abstract
BACKGROUND Sacral schwannomas are rare tumors arising from nerve sheath Schwann cells. They are classified into 3 types: first type schwannoma arising from the sacrum, second type schwannoma eroding the sacrum, and third type schwannoma extending extensively, involving anterior, posterior, and retroperitoneal space. Among these type 2 sacral tumors, according to Klimo's classification, an eroding sacrum extending all over posteriorly, anteriorly, and laterally is still rarer. Only 38 cases have been reported in literature reviews. Only 6 cases of giant tumors of >10 cm in any 1 dimension have been reported. CASE DESCRIPTION We present such a giant sacral schwannoma, with invasiveness eroding the sacrum; compressing the ureters, aortic bifurcation, bladder, and bowel; and presenting as lower abdominal pain, hydronephrosis, dysuria, and constipation. This is the first case reported in the literature that has described a large retroperitoneal tumor compressing retroperitoneal structures-aortic bifurcation vascular compression and ureter compression causing hydronephrosis. CONCLUSIONS Though complete resection, which caused various severe postoperative complications in the reported cases, is the best option, a less morbid procedure would be appropriate; hence we underwent subtotal excision of the tumor, with complete recovery of our patient's symptoms without neurologic deficit.
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Affiliation(s)
| | - Junya Hanakita
- Spinal Disorders Center, Fujieda Heisei Memorial Hospital, Fujieda City, Shizuoka, Japan
| | - Toshiyuki Takahashi
- Spinal Disorders Center, Fujieda Heisei Memorial Hospital, Fujieda City, Shizuoka, Japan
| | - Manabu Ueno
- Department of Urology, Fujieda Heisei Memorial Hospital, Fujieda City, Shizuoka, Japan
| | - Manabu Minami
- Spinal Disorders Center, Fujieda Heisei Memorial Hospital, Fujieda City, Shizuoka, Japan
| | - Yosuke Tomita
- Spinal Disorders Center, Fujieda Heisei Memorial Hospital, Fujieda City, Shizuoka, Japan
| | - Yoshitaka Tsujimoto
- Spinal Disorders Center, Fujieda Heisei Memorial Hospital, Fujieda City, Shizuoka, Japan
| | - Ryo Kanematsu
- Spinal Disorders Center, Fujieda Heisei Memorial Hospital, Fujieda City, Shizuoka, Japan
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Oichi Y, Toda H, Yamagishi K, Tsujimoto Y. Multiple Spinal Chronic Subdural Hematomas Associated with Thoracic Hematomyelia: A Case Report and Literature Review. World Neurosurg 2019; 131:95-103. [PMID: 31394354 DOI: 10.1016/j.wneu.2019.07.209] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2019] [Revised: 07/28/2019] [Accepted: 07/29/2019] [Indexed: 11/19/2022]
Abstract
BACKGROUND Chronic subdural hematoma (CSDH) is uncommon in the spine. Most spinal CSDHs occur as solitary lesions in the lumbosacral region. We report a rare case of multiple spinal CSDHs associated with hematomyelia. The diagnostic and therapeutic management of these complex spinal CSDHs is reviewed as well as the pertinent literature. CASE DESCRIPTION A 79-year-old woman on warfarin therapy presented with lower back pain and progressive lower extremity weakness that had developed in the previous 2 weeks. She subsequently developed paraplegia and urinary incontinence. Thoracolumbar magnetic resonance imaging showed a CSDH from T12-L3 compressing the cauda equina. Single-shot whole-spine magnetic resonance imaging showed another CSDH and hematomyelia at T2-3. She underwent L2-3 hemilaminectomy, which revealed a liquefied subdural hematoma. Delayed T2 laminectomy exposed an organized subdural hematoma and xanthochromic hematomyelia. After each surgery, the patient showed significant motor recovery. Finally, the patient could walk, and the urinary catheter was removed. CONCLUSIONS Spinal CSDH may occur in multiple regions and may be associated with hematomyelia. Whole-spine magnetic resonance imaging is useful to examine the entire spine for CSDH accurately and thoroughly. Comprehensive surgical exploration of all symptomatic hematomas may restore neurologic functions even with delayed surgery.
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MESH Headings
- Aged
- Female
- Hematoma, Subdural, Chronic/complications
- Hematoma, Subdural, Chronic/diagnostic imaging
- Hematoma, Subdural, Chronic/surgery
- Hematoma, Subdural, Spinal/complications
- Hematoma, Subdural, Spinal/diagnostic imaging
- Hematoma, Subdural, Spinal/surgery
- Humans
- Laminectomy
- Lumbar Vertebrae/diagnostic imaging
- Lumbar Vertebrae/surgery
- Magnetic Resonance Imaging
- Paraplegia/etiology
- Spinal Cord Vascular Diseases/diagnostic imaging
- Spinal Cord Vascular Diseases/etiology
- Thoracic Vertebrae/diagnostic imaging
- Thoracic Vertebrae/surgery
- Urinary Retention/etiology
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Affiliation(s)
- Yuki Oichi
- Department of Neurosurgery, Fukui Red Cross Hospital, Fukui, Japan
| | - Hiroki Toda
- Department of Neurosurgery, Fukui Red Cross Hospital, Fukui, Japan.
| | - Koji Yamagishi
- Department of Rehabilitation, Fukui Red Cross Hospital, Fukui, Japan
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Shoji T, Okute Y, Tsujimoto Y, Nakatani S, Mori K, Fukumoto S, Emoto M, Inaba M. SUN-054 ALTERED BIOMARKER PROFILE OF CHOLESTEROL ABSORPTION IN ASSOCIATION WITH RISK OF FUTURE CARDIOVASCULAR EVENTS AND MORTALOTY IN A HEMODIALYSIS COHORT. Kidney Int Rep 2019. [DOI: 10.1016/j.ekir.2019.05.450] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Takemura T, Kataoka Y, Uneno Y, Otoshi T, Matsumoto H, Tsutsumi Y, Tsujimoto Y, Yuasa M, Yoshioka T, Wada H. The reporting quality of prediction models in oncology journals: A systematic review. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy433.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Vale JG, Calder S, Donnerer C, Pincini D, Shi YG, Tsujimoto Y, Yamaura K, Sala MM, van den Brink J, Christianson AD, McMorrow DF. Evolution of the Magnetic Excitations in NaOsO_{3} through its Metal-Insulator Transition. Phys Rev Lett 2018; 120:227203. [PMID: 29906188 DOI: 10.1103/physrevlett.120.227203] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2017] [Indexed: 06/08/2023]
Abstract
The temperature dependence of the excitation spectrum in NaOsO_{3} through its metal-to-insulator transition (MIT) at 410 K has been investigated using resonant inelastic x-ray scattering at the Os L_{3} edge. High-resolution (ΔE∼56 meV) measurements show that the well-defined, low-energy magnons in the insulating state weaken and dampen upon approaching the metallic state. Concomitantly, a broad continuum of excitations develops which is well described by the magnetic fluctuations of a nearly antiferromagnetic Fermi liquid. By revealing the continuous evolution of the magnetic quasiparticle spectrum as it changes its character from itinerant to localized, our results provide unprecedented insight into the nature of the MIT in NaOsO_{3} [J. G. Vale, S. Calder, C. Donnerer, D. Pincini, Y. G. Shi, Y. Tsujimoto, K. Yamaura, M. M. Sala, J. van den Brink, A. D. Christianson, and D. F. McMorrow, Phys. Rev. B 97, 184429 (2018)PRBMDO2469-995010.1103/PhysRevB.97.184429].
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Affiliation(s)
- J G Vale
- London Centre for Nanotechnology and Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT, United Kingdom
- Laboratory for Quantum Magnetism, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne CH-1015, Switzerland
| | - S Calder
- Neutron Scattering Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
| | - C Donnerer
- London Centre for Nanotechnology and Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT, United Kingdom
| | - D Pincini
- London Centre for Nanotechnology and Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT, United Kingdom
- Diamond Light Source, Harwell Science and Innovation Campus, Didcot, Oxfordshire OX11 0DE, United Kingdom
| | - Y G Shi
- Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
- Research Center for Functional Materials, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
| | - Y Tsujimoto
- Research Center for Functional Materials, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
| | - K Yamaura
- Research Center for Functional Materials, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
- Graduate School of Chemical Sciences and Engineering, Hokkaido University, North 10 West 8, Kita-ku, Sapporo, Hokkaido 060-0810, Japan
| | - M Moretti Sala
- ESRF, The European Synchrotron, 71 Avenue des Martyrs, 38043 Grenoble, France
| | - J van den Brink
- Institute for Theoretical Solid State Physics, IFW Dresden, D01171 Dresden, Germany
| | - A D Christianson
- Neutron Scattering Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
- Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37996, USA
| | - D F McMorrow
- London Centre for Nanotechnology and Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT, United Kingdom
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Yoshida K, Yamazaki H, Takenaka T, Kotsuma T, Masui K, Komori T, Shimbo T, Yoshikawa N, Yoshioka H, Uesugi Y, Hamada T, Nakata M, Matsutani H, Ueda M, Tsujimoto Y, Tanaka E, Narumi Y. PO-0937: HDR image-guided interstitial brachytherapy for postoperative local recurrent uterine cancer. Radiother Oncol 2017. [DOI: 10.1016/s0167-8140(17)31374-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Kanegi R, Hatoya S, Tsujimoto Y, Takenaka S, Nishimura T, Wijewardana V, Sugiura K, Takahashi M, Kawate N, Tamada H, Inaba T. Production of feline leukemia inhibitory factor with biological activity in Escherichia coli. Theriogenology 2016; 86:604-11. [DOI: 10.1016/j.theriogenology.2016.02.013] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2015] [Revised: 02/11/2016] [Accepted: 02/17/2016] [Indexed: 11/16/2022]
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Saito N, Sugiyama K, Ohnuma T, Kanemura T, Nasu M, Yoshidomi Y, Adachi H, Koami H, Tsujimoto Y, Tochiki A, Wagatsuma Y, Myumi T. Effectiveness of polymyxin b immobilized fiber hemoperfusion in patients with septic shock due to Gram-negative bacillus infection: the PMXHP study. Crit Care 2015. [PMCID: PMC4472831 DOI: 10.1186/cc14211] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
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Galluzzi L, Bravo-San Pedro JM, Vitale I, Aaronson SA, Abrams JM, Adam D, Alnemri ES, Altucci L, Andrews D, Annicchiarico-Petruzzelli M, Baehrecke EH, Bazan NG, Bertrand MJ, Bianchi K, Blagosklonny MV, Blomgren K, Borner C, Bredesen DE, Brenner C, Campanella M, Candi E, Cecconi F, Chan FK, Chandel NS, Cheng EH, Chipuk JE, Cidlowski JA, Ciechanover A, Dawson TM, Dawson VL, De Laurenzi V, De Maria R, Debatin KM, Di Daniele N, Dixit VM, Dynlacht BD, El-Deiry WS, Fimia GM, Flavell RA, Fulda S, Garrido C, Gougeon ML, Green DR, Gronemeyer H, Hajnoczky G, Hardwick JM, Hengartner MO, Ichijo H, Joseph B, Jost PJ, Kaufmann T, Kepp O, Klionsky DJ, Knight RA, Kumar S, Lemasters JJ, Levine B, Linkermann A, Lipton SA, Lockshin RA, López-Otín C, Lugli E, Madeo F, Malorni W, Marine JC, Martin SJ, Martinou JC, Medema JP, Meier P, Melino S, Mizushima N, Moll U, Muñoz-Pinedo C, Nuñez G, Oberst A, Panaretakis T, Penninger JM, Peter ME, Piacentini M, Pinton P, Prehn JH, Puthalakath H, Rabinovich GA, Ravichandran KS, Rizzuto R, Rodrigues CM, Rubinsztein DC, Rudel T, Shi Y, Simon HU, Stockwell BR, Szabadkai G, Tait SW, Tang HL, Tavernarakis N, Tsujimoto Y, Vanden Berghe T, Vandenabeele P, Villunger A, Wagner EF, Walczak H, White E, Wood WG, Yuan J, Zakeri Z, Zhivotovsky B, Melino G, Kroemer G. Essential versus accessory aspects of cell death: recommendations of the NCCD 2015. Cell Death Differ 2014; 22:58-73. [PMID: 25236395 PMCID: PMC4262782 DOI: 10.1038/cdd.2014.137] [Citation(s) in RCA: 664] [Impact Index Per Article: 66.4] [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: 07/23/2014] [Accepted: 07/30/2014] [Indexed: 02/07/2023] Open
Abstract
Cells exposed to extreme physicochemical or mechanical stimuli die in an uncontrollable manner, as a result of their immediate structural breakdown. Such an unavoidable variant of cellular demise is generally referred to as ‘accidental cell death' (ACD). In most settings, however, cell death is initiated by a genetically encoded apparatus, correlating with the fact that its course can be altered by pharmacologic or genetic interventions. ‘Regulated cell death' (RCD) can occur as part of physiologic programs or can be activated once adaptive responses to perturbations of the extracellular or intracellular microenvironment fail. The biochemical phenomena that accompany RCD may be harnessed to classify it into a few subtypes, which often (but not always) exhibit stereotyped morphologic features. Nonetheless, efficiently inhibiting the processes that are commonly thought to cause RCD, such as the activation of executioner caspases in the course of apoptosis, does not exert true cytoprotective effects in the mammalian system, but simply alters the kinetics of cellular demise as it shifts its morphologic and biochemical correlates. Conversely, bona fide cytoprotection can be achieved by inhibiting the transduction of lethal signals in the early phases of the process, when adaptive responses are still operational. Thus, the mechanisms that truly execute RCD may be less understood, less inhibitable and perhaps more homogeneous than previously thought. Here, the Nomenclature Committee on Cell Death formulates a set of recommendations to help scientists and researchers to discriminate between essential and accessory aspects of cell death.
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Affiliation(s)
- L Galluzzi
- 1] Gustave Roussy Cancer Center, Villejuif, France [2] Equipe 11 labellisée par la Ligue Nationale contre le Cancer, Centre de Recherche des Cordeliers, Paris, France [3] Université Paris Descartes/Paris V, Sorbonne Paris Cité, Paris, France
| | - J M Bravo-San Pedro
- 1] Gustave Roussy Cancer Center, Villejuif, France [2] Equipe 11 labellisée par la Ligue Nationale contre le Cancer, Centre de Recherche des Cordeliers, Paris, France [3] INSERM, U1138, Gustave Roussy, Paris, France
| | - I Vitale
- Regina Elena National Cancer Institute, Rome, Italy
| | - S A Aaronson
- Department of Oncological Sciences, The Tisch Cancer Institute, Ichan School of Medicine at Mount Sinai, New York, NY, USA
| | - J M Abrams
- Department of Cell Biology, UT Southwestern Medical Center, Dallas, TX, USA
| | - D Adam
- Institute of Immunology, Christian-Albrechts University, Kiel, Germany
| | - E S Alnemri
- Department of Biochemistry and Molecular Biology, Thomas Jefferson University, Philadelphia, PA, USA
| | - L Altucci
- Dipartimento di Biochimica, Biofisica e Patologia Generale, Seconda Università degli Studi di Napoli, Napoli, Italy
| | - D Andrews
- Department of Biochemistry and Medical Biophysics, University of Toronto, Toronto, ON, Canada
| | - M Annicchiarico-Petruzzelli
- Biochemistry Laboratory, Istituto Dermopatico dell'Immacolata - Istituto Ricovero Cura Carattere Scientifico (IDI-IRCCS), Rome, Italy
| | - E H Baehrecke
- Department of Cancer Biology, University of Massachusetts Medical School, Worcester, MA, USA
| | - N G Bazan
- Neuroscience Center of Excellence, School of Medicine, New Orleans, LA, USA
| | - M J Bertrand
- 1] VIB Inflammation Research Center, Ghent, Belgium [2] Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - K Bianchi
- 1] Barts Cancer Institute, Cancer Research UK Centre of Excellence, London, UK [2] Queen Mary University of London, John Vane Science Centre, London, UK
| | - M V Blagosklonny
- Department of Cell Stress Biology, Roswell Park Cancer Institute, Buffalo, NY, USA
| | - K Blomgren
- Karolinska University Hospital, Karolinska Institute, Stockholm, Sweden
| | - C Borner
- Institute of Molecular Medicine and Spemann Graduate School of Biology and Medicine, Albert-Ludwigs University, Freiburg, Germany
| | - D E Bredesen
- 1] Buck Institute for Research on Aging, Novato, CA, USA [2] Department of Neurology, University of California, San Francisco (UCSF), San Francisco, CA, USA
| | - C Brenner
- 1] INSERM, UMRS769, Châtenay Malabry, France [2] LabEx LERMIT, Châtenay Malabry, France [3] Université Paris Sud/Paris XI, Orsay, France
| | - M Campanella
- Department of Comparative Biomedical Sciences and Consortium for Mitochondrial Research, University College London (UCL), London, UK
| | - E Candi
- Department of Experimental Medicine and Surgery, University of Rome Tor Vergata, Rome, Italy
| | - F Cecconi
- 1] Laboratory of Molecular Neuroembryology, IRCCS Fondazione Santa Lucia, Rome, Italy [2] Department of Biology, University of Rome Tor Vergata; Rome, Italy [3] Unit of Cell Stress and Survival, Danish Cancer Society Research Center, Copenhagen, Denmark
| | - F K Chan
- Department of Pathology, University of Massachusetts Medical School, Worcester, MA, USA
| | - N S Chandel
- Department of Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - E H Cheng
- Human Oncology and Pathogenesis Program and Department of Pathology, Memorial Sloan Kettering Cancer Center (MSKCC), New York, NY, USA
| | - J E Chipuk
- Department of Oncological Sciences, The Tisch Cancer Institute, Ichan School of Medicine at Mount Sinai, New York, NY, USA
| | - J A Cidlowski
- Laboratory of Signal Transduction, National Institute of Environmental Health Sciences (NIEHS), National Institute of Health (NIH), North Carolina, NC, USA
| | - A Ciechanover
- Tumor and Vascular Biology Research Center, The Rappaport Faculty of Medicine and Research Institute, Technion Israel Institute of Technology, Haifa, Israel
| | - T M Dawson
- 1] Neuroregeneration and Stem Cell Programs, Institute for Cell Engineering (ICE), Departments of Neurology, Pharmacology and Molecular Sciences, Solomon H Snyder Department of Neuroscience, Johns Hopkins University School of Medicine, Baltimore, MD, USA [2] Adrienne Helis Malvin Medical Research Foundation, New Orleans, LA, USA
| | - V L Dawson
- 1] Neuroregeneration and Stem Cell Programs, Institute for Cell Engineering (ICE), Departments of Neurology, Pharmacology and Molecular Sciences, Solomon H Snyder Department of Neuroscience, Johns Hopkins University School of Medicine, Baltimore, MD, USA [2] Adrienne Helis Malvin Medical Research Foundation, New Orleans, LA, USA
| | - V De Laurenzi
- Department of Experimental and Clinical Sciences, Gabriele d'Annunzio University, Chieti, Italy
| | - R De Maria
- Regina Elena National Cancer Institute, Rome, Italy
| | - K-M Debatin
- Department of Pediatrics and Adolescent Medicine, Ulm University Medical Center, Ulm, Germany
| | - N Di Daniele
- Department of Systems Medicine, University of Rome Tor Vergata, Rome, Italy
| | - V M Dixit
- Department of Physiological Chemistry, Genentech, South San Francisco, CA, USA
| | - B D Dynlacht
- Department of Pathology and Cancer Institute, Smilow Research Center, New York University School of Medicine, New York, NY, USA
| | - W S El-Deiry
- Laboratory of Translational Oncology and Experimental Cancer Therapeutics, Department of Medicine (Hematology/Oncology), Penn State Hershey Cancer Institute, Penn State College of Medicine, Hershey, PA, USA
| | - G M Fimia
- 1] Department of Biological and Environmental Sciences and Technologies (DiSTeBA), University of Salento, Lecce, Italy [2] Department of Epidemiology and Preclinical Research, National Institute for Infectious Diseases Lazzaro Spallanzani, Istituto Ricovero Cura Carattere Scientifico (IRCCS), Rome, Italy
| | - R A Flavell
- Department of Immunobiology, Yale School of Medicine, New Haven, CT, USA
| | - S Fulda
- Institute for Experimental Cancer Research in Pediatrics, Goethe University, Frankfurt, Germany
| | - C Garrido
- 1] INSERM, U866, Dijon, France [2] Faculty of Medicine, University of Burgundy, Dijon, France
| | - M-L Gougeon
- Antiviral Immunity, Biotherapy and Vaccine Unit, Infection and Epidemiology Department, Institut Pasteur, Paris, France
| | - D R Green
- Department of Immunology, St Jude's Children's Research Hospital, Memphis, TN, USA
| | - H Gronemeyer
- Department of Functional Genomics and Cancer, Institut de Génétique et de Biologie Moléculaire et Cellulaire (IGBMC), Illkirch, France
| | - G Hajnoczky
- Department of Pathology, Anatomy and Cell Biology, Thomas Jefferson University, Philadelphia, PA, USA
| | - J M Hardwick
- W Harry Feinstone Department of Molecular Microbiology and Immunology, Johns Hopkins University, Baltimore, MD, USA
| | - M O Hengartner
- Institute of Molecular Life Sciences, University of Zurich, Zurich, Switzerland
| | - H Ichijo
- Laboratory of Cell Signaling, Graduate School of Pharmaceutical Sciences, University of Tokyo, Tokyo, Japan
| | - B Joseph
- Department of Oncology-Pathology, Cancer Centrum Karolinska (CCK), Karolinska Institute, Stockholm, Sweden
| | - P J Jost
- Medical Department for Hematology, Technical University of Munich, Munich, Germany
| | - T Kaufmann
- Institute of Pharmacology, Medical Faculty, University of Bern, Bern, Switzerland
| | - O Kepp
- 1] Equipe 11 labellisée par la Ligue Nationale contre le Cancer, Centre de Recherche des Cordeliers, Paris, France [2] INSERM, U1138, Gustave Roussy, Paris, France [3] Metabolomics and Cell Biology Platforms, Gustave Roussy Cancer Center, Villejuif, France
| | - D J Klionsky
- Life Sciences Institute, University of Michigan, Ann Arbor, MI, USA
| | - R A Knight
- 1] Medical Molecular Biology Unit, Institute of Child Health, University College London (UCL), London, UK [2] Medical Research Council Toxicology Unit, Leicester, UK
| | - S Kumar
- 1] Centre for Cancer Biology, University of South Australia, Adelaide, SA, Australia [2] School of Medicine and School of Molecular and Biomedical Science, University of Adelaide, Adelaide, SA, Australia
| | - J J Lemasters
- Departments of Drug Discovery and Biomedical Sciences and Biochemistry and Molecular Biology, Medical University of South Carolina, Charleston, SC, USA
| | - B Levine
- 1] Center for Autophagy Research, University of Texas, Southwestern Medical Center, Dallas, TX, USA [2] Howard Hughes Medical Institute (HHMI), Chevy Chase, MD, USA
| | - A Linkermann
- Division of Nephrology and Hypertension, Christian-Albrechts University, Kiel, Germany
| | - S A Lipton
- 1] The Scripps Research Institute, La Jolla, CA, USA [2] Sanford-Burnham Center for Neuroscience, Aging, and Stem Cell Research, La Jolla, CA, USA [3] Salk Institute for Biological Studies, La Jolla, CA, USA [4] University of California, San Diego (UCSD), San Diego, CA, USA
| | - R A Lockshin
- Department of Biological Sciences, St. John's University, Queens, NY, USA
| | - C López-Otín
- Department of Biochemistry and Molecular Biology, Faculty of Medecine, Instituto Universitario de Oncología (IUOPA), University of Oviedo, Oviedo, Spain
| | - E Lugli
- Unit of Clinical and Experimental Immunology, Humanitas Clinical and Research Center, Milan, Italy
| | - F Madeo
- Institute of Molecular Biosciences, University of Graz, Graz, Austria
| | - W Malorni
- 1] Department of Therapeutic Research and Medicine Evaluation, Istituto Superiore di Sanita (ISS), Roma, Italy [2] San Raffaele Institute, Sulmona, Italy
| | - J-C Marine
- 1] Laboratory for Molecular Cancer Biology, Center for the Biology of Disease, Leuven, Belgium [2] Laboratory for Molecular Cancer Biology, Center of Human Genetics, Leuven, Belgium
| | - S J Martin
- Department of Genetics, The Smurfit Institute, Trinity College, Dublin, Ireland
| | - J-C Martinou
- Department of Cell Biology, University of Geneva, Geneva, Switzerland
| | - J P Medema
- Laboratory for Experiments Oncology and Radiobiology (LEXOR), Academic Medical Center (AMC), Amsterdam, The Netherlands
| | - P Meier
- Institute of Cancer Research, The Breakthrough Toby Robins Breast Cancer Research Centre, London, UK
| | - S Melino
- Department of Chemical Sciences and Technologies, University of Rome Tor Vergata, Rome, Italy
| | - N Mizushima
- Graduate School and Faculty of Medicine, University of Tokyo, Tokyo, Japan
| | - U Moll
- Department of Pathology, Stony Brook University, Stony Brook, NY, USA
| | - C Muñoz-Pinedo
- Cell Death Regulation Group, Bellvitge Biomedical Research Institute (IDIBELL), Barcelona, Spain
| | - G Nuñez
- Department of Pathology and Comprehensive Cancer Center, University of Michigan Medical School, Ann Arbor, MI, USA
| | - A Oberst
- Department of Immunology, University of Washington, Seattle, WA, USA
| | - T Panaretakis
- Department of Oncology-Pathology, Cancer Centrum Karolinska (CCK), Karolinska Institute, Stockholm, Sweden
| | - J M Penninger
- Institute of Molecular Biotechnology of the Austrian Academy of Sciences, Vienna, Austria
| | - M E Peter
- Department of Hematology/Oncology, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - M Piacentini
- 1] Department of Biology, University of Rome Tor Vergata; Rome, Italy [2] Department of Epidemiology and Preclinical Research, National Institute for Infectious Diseases Lazzaro Spallanzani, Istituto Ricovero Cura Carattere Scientifico (IRCCS), Rome, Italy
| | - P Pinton
- Department of Morphology, Surgery and Experimental Medicine, Section of Pathology, Oncology and Experimental Biology and LTTA Center, University of Ferrara, Ferrara, Italy
| | - J H Prehn
- Department of Physiology and Medical Physics, Royal College of Surgeons, Dublin, Ireland
| | - H Puthalakath
- Department of Biochemistry, La Trobe Institute of Molecular Science, La Trobe University, Melbourne, Australia
| | - G A Rabinovich
- Laboratory of Immunopathology, Instituto de Biología y Medicina Experimental (IBYME), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
| | - K S Ravichandran
- Department of Microbiology, Immunology and Cancer Biology, University of Virginia, Charlottesville, VA, USA
| | - R Rizzuto
- Department Biomedical Sciences, University of Padova, Padova, Italy
| | - C M Rodrigues
- Research Institute for Medicines, Faculty of Pharmacy, University of Lisbon, Lisbon, Portugal
| | - D C Rubinsztein
- Department of Medical Genetics, Cambridge Institute for Medical Research, University of Cambridge School of Clinical Medicine, Cambridge, UK
| | - T Rudel
- Department of Microbiology, University of Würzburg; Würzburg, Germany
| | - Y Shi
- Soochow Institute for Translational Medicine, Soochow University, Suzhou, China
| | - H-U Simon
- Institute of Pharmacology, University of Bern, Bern, Switzerland
| | - B R Stockwell
- 1] Howard Hughes Medical Institute (HHMI), Chevy Chase, MD, USA [2] Departments of Biological Sciences and Chemistry, Columbia University, New York, NY, USA
| | - G Szabadkai
- 1] Department Biomedical Sciences, University of Padova, Padova, Italy [2] Department of Cell and Developmental Biology and Consortium for Mitochondrial Research, University College London (UCL), London, UK
| | - S W Tait
- 1] Cancer Research UK Beatson Institute, Glasgow, UK [2] Institute of Cancer Sciences, University of Glasgow, Glasgow, UK
| | - H L Tang
- W Harry Feinstone Department of Molecular Microbiology and Immunology, Johns Hopkins University, Baltimore, MD, USA
| | - N Tavernarakis
- 1] Institute of Molecular Biology and Biotechnology, Foundation for Research and Technology-Hellas, Heraklion, Crete, Greece [2] Department of Basic Sciences, Faculty of Medicine, University of Crete, Heraklion, Crete, Greece
| | - Y Tsujimoto
- Osaka Medical Center for Cancer and Cardiovascular Diseases, Osaka, Japan
| | - T Vanden Berghe
- 1] VIB Inflammation Research Center, Ghent, Belgium [2] Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - P Vandenabeele
- 1] VIB Inflammation Research Center, Ghent, Belgium [2] Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium [3] Methusalem Program, Ghent University, Ghent, Belgium
| | - A Villunger
- Division of Developmental Immunology, Biocenter, Medical University Innsbruck, Innsbruck, Austria
| | - E F Wagner
- Cancer Cell Biology Program, Spanish National Cancer Research Centre (CNIO), Madrid, Spain
| | - H Walczak
- Centre for Cell Death, Cancer and Inflammation (CCCI), UCL Cancer Institute, University College London (UCL), London, UK
| | - E White
- Rutgers Cancer Institute of New Jersey, New Brunswick, NJ, USA
| | - W G Wood
- 1] Department of Pharmacology, University of Minnesota School of Medicine, Minneapolis, MN, USA [2] Geriatric Research, Education and Clinical Center, VA Medical Center, Minneapolis, MN, USA
| | - J Yuan
- Department of Cell Biology, Harvard Medical School, Boston, MA, USA
| | - Z Zakeri
- 1] Department of Biology, Queens College, Queens, NY, USA [2] Graduate Center, City University of New York (CUNY), Queens, NY, USA
| | - B Zhivotovsky
- 1] Division of Toxicology, Institute of Environmental Medicine, Karolinska Institute, Stockholm, Sweden [2] Faculty of Fundamental Medicine, Lomonosov Moscow State University, Moscow, Russia
| | - G Melino
- 1] Department of Experimental Medicine and Surgery, University of Rome Tor Vergata, Rome, Italy [2] Medical Research Council Toxicology Unit, Leicester, UK
| | - G Kroemer
- 1] Equipe 11 labellisée par la Ligue Nationale contre le Cancer, Centre de Recherche des Cordeliers, Paris, France [2] Université Paris Descartes/Paris V, Sorbonne Paris Cité, Paris, France [3] INSERM, U1138, Gustave Roussy, Paris, France [4] Metabolomics and Cell Biology Platforms, Gustave Roussy Cancer Center, Villejuif, France [5] Pôle de Biologie, Hôpital Européen Georges Pompidou, AP-HP, Paris, France
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Rothuizen TC, Ocak G, Verschuren JJ, Dekker FW, Rabelink TJ, Jukema JW, Rotmans JI, Silva V, Raimann JG, Grassmann A, Marcelli D, Usvyat L, Canaud B, Kotanko P, Pecoits-Filho R, Consortium M, Strippoli GF, Sue YM, Tang CH, Chen TH, Hong CY, Ochi A, Ishimura E, Masuda M, Tsujimoto Y, Okuno S, Tabata T, Nishizawa Y, Inaba M, Moon Ki H, Do Hyoung K, Min Jee H, Hyun K, Wang Soo L, Su-Hyun K, Selim G, Stojceva-Taneva O, Tozija L, Dzekova-Vidimliski P, Trajceska L, Gelev S, Amitov V, Petronievic Z, Sikole A, Kee YK, Kim YL, Han JH, Oh HJ, Park JT, Han SH, Yoo TH, Kang SW, Okute Y, Shoji T, Sonoda M, Kuwamura Y, Tsujimoto Y, Tabata T, Shioi A, Tahara H, Emoto M, Inaba M, El Amrani M, Asserraji M, Benyahia M, Galloway PA, Yiu V, Hiemstra TF, Nilssen C, Zannad F, Jardine A, Schmieder R, Fellstrom B, Holdaas H, Mjoen G, Eftimovska - Otovic N, Babalj - Banskolieva E, Bogdanoska - Kostadinoska S, Grozdanovski R, Silva BC, Freitas GR, Silva VB, Abensur H, Luders C, Pereira BJ, Castro MC, Oliveira RB, Moyses RM, Elias RM, Perez De Jose A, Abad S, Vega A, Reque J, Quiroga B, Lopez-Gomez JM, Sasaki K, Yamguchi K, Hesaka A, Iwahashi E, Sakai S, Fujimoto T, Minami S, Fujita Y, Yokoyama K, Kidir V, Ersoy I, Altuntas A, Inal S, Do an A, Sezer MT, Azar H, Chacra D, Dabar G, Chelala D, Zhao L, Huang S, Liang T, Tang H, Turkmen K, Demirtas L, Akbas EM, Buyuklu M, Bakirci E, Kocyigit I, Ozcelik O, Guney I, Mumajesi S, Velaj A, Idrizi A, Pasko N, Cadri V, Barbullushi M, Bolleku E, Strakosh A, Cenaj A, Kacori V, Zekollari E, Rista E, Dusha D, Belba A, Thereska N, Gelev S, Toshev S, Trajceska L, Pavleska S, Selim G, Dzekova P, Shikole A, Naess H, Fellstrom B, Jardine AG, Schmieder RE, Zannad F, Holdaas H, Mjoen G, Sasaki K, Yamguchi S, Hesaka A, Iwahashi E, Sakai S, Fujimoto T, Minami S, Fujita Y, Yokoyama K, Bilevich O, Bunova S, Semchenko S, Schwermer K, Hoppe K, Klysz P, Baum E, Sikorska D, Radziszewska D, Sawatiuk P, Olejniczak P, Pawlaczyk K, Lindholm B, Oko A, El Amrani M, Asserraji M, Rbaibi A, El Kharass A, Benyahia M, Rroji ( Molla) M, Seferi S, Cafka M, Spahia N, Likaj E, Thereska N, Barbullushi M, Pelletier CC, Jolivot A, Kalbacher E, Panaye M, Bureau Du Colombier P, Juillard L, Burmeister JE, Mosmann CB, Bastos JP, Burmeister BO, Munaro G, Pereira JD, Youssef DW, Rosito GA. DIALYSIS CARDIOVASCULAR COMPLICATIONS 2. Nephrol Dial Transplant 2014. [DOI: 10.1093/ndt/gfu175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Tsujimoto Y, Sathish CI, Matsushita Y, Yamaura K, Uchikoshi T. New members of layered oxychloride perovskites with square planar coordination: Sr2MO2Cl2 (M = Mn, Ni) and Ba2PdO2Cl2. Chem Commun (Camb) 2014; 50:5915-8. [DOI: 10.1039/c4cc01422g] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We have demonstrated high-pressure syntheses of Ruddlesden–Popper type layered oxychloride perovskites, Sr2MnO2Cl2, Sr2NiO2Cl2 and Ba2PdO2Cl2, with a square planar coordination around the transition metal centres.
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Affiliation(s)
- Y. Tsujimoto
- Materials Processing Unit
- National Institute for Materials Science (NIMS)
- Tsukuba, Japan
| | | | | | - K. Yamaura
- Superconducting Properties Unit
- NIMS
- Tsukuba, Japan
| | - T. Uchikoshi
- Materials Processing Unit
- National Institute for Materials Science (NIMS)
- Tsukuba, Japan
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Tsujimoto Y, Kobayashi M, Adachi Y. Viscosity of dilute Na-montmorillonite suspensions in electrostatically stable condition under low shear stress. Colloids Surf A Physicochem Eng Asp 2014. [DOI: 10.1016/j.colsurfa.2012.11.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Tsujimoto Y, Chassagne C, Adachi Y. Comparison between the electrokinetic properties of kaolinite and montmorillonite suspensions at different volume fractions. J Colloid Interface Sci 2013; 407:109-15. [DOI: 10.1016/j.jcis.2013.05.080] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2013] [Revised: 05/24/2013] [Accepted: 05/28/2013] [Indexed: 10/26/2022]
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Tsujimoto Y, Chassagne C, Adachi Y. Dielectric and electrophoretic response of montmorillonite particles as function of ionic strength. J Colloid Interface Sci 2013; 404:72-9. [DOI: 10.1016/j.jcis.2013.03.033] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2013] [Accepted: 03/25/2013] [Indexed: 10/27/2022]
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Gelev S, Toshev S, Trajceska L, Pavleska S, Selim G, Dzekova P, Shikole A, Gelev S, Toshev S, Trajceska L, Pavleska S, Selim G, Dzekova P, Shikole A, Ulu SM, Yilmaz F, Ahsen A, Akci A, Yuksel S, Mihaescu A, Olariu N, Avram C, Schiller O, Schiller A, Xiao DM, Niu JY, Gu Y, Drechsler C, van den Broek H, Vervloet M, Hoekstra T, Dekker F, Ketteler M, Brandenburg V, Turkvatan A, Kirkpantur A, Mandiroglu S, Afsar B, Seloglu B, Alkis M, Erkula S, GURBUZ H, Serin M, CALIK Y, Mandiroglu F, Balci M, Choi BS, Choi SR, Park HS, Hong YA, Chung BH, Kim YS, Yang CW, Kim YS, Park CW, Jung JY, Sung JY, Kim AJ, Kim HS, Lee C, Ro H, Chang JH, Lee HH, Chung W, Sezer S, Bal Z, Tutal E, Bal U, Erkmen Uyar M, Ozdemir Acar N, Karakas Y, Sahin G, Urfali F, Bal C, Akcar Degirmenci N, Sirmagul B, Janda K, Krzanowski M, Dumnicka P, Kusnierz-Cabala B, Sulowicz W, Balci M, Kirkpantur A, Mandiroglu S, Afsar B, Seloglu B, Alkis M, Serin M, CALIK Y, Erkula S, GURBUZ H, Mandiroglu F, Turkvatan A, Valtuille RA, Gonzalez MS, Casos ME, Yoshida T, Yamashita M, Hayashi M, Raikou VD, Tentolouris N, Makropoulos I, Kaisidis P, Boletis JN, Abdalla AA, Roche D, Forbes JF, Hannigan A, Hegarty A, Cronin CJ, Casserly LF, Stack AG, Guinsburg A, Raimann JG, Usvyat L, Kooman J, Marelli C, Etter M, Marcelli D, Levin NW, Kotanko P, Kim CS, Choi JS, Bae EH, Ma SK, Kim SW, Ryu JH, Lee S, Ryu DR, Kim SJ, Kang DH, Choi KB, Shoji T, Tsuchikura S, Shimomura N, Kakiya R, Tsujimoto Y, Tabata T, Emoto M, Nishizawa Y, Inaba M, Selim G, Stojceva-Taneva O, Tozija L, Georgievska-Ismail L, Gelev S, Dzekova-Vidimliski P, Trajceska L, Petronievic Z, Sikole A, Wu CJ, Pan CF, Chen HH, Lin CJ, Kim Y, Kim JK, Song YR, Kim SG, Kim HJ, Kuwahara M, Bannai K, Kikuchi K, Yamato H, Segawa H, Miyamoto KI, De Mauri A, Chiarinotti D, Ruva CE, David P, Capurro F, De Leo M, Han JH, Kim HR, Ko KI, Kim CH, Koo HM, Doh FM, Lee MJ, Oh HJ, Han SH, Yoo TH, Choi KH, Kang SW, Shibata K, Sohara H, Kuji T, Kawata S, Kogudhi N, Nishihara M, Satta H, Jung JY, Ro H, Lee C, Kim SM, Kim AJ, Kim HS, Chang JH, Lee HH, Chung W, Kramann R, Erpenbeck J, Becker M, Brandenburg V, Kruger T, Marx N, Floege J, Schlieper G, Power A, Fogarty D, Wheeler D, Kerschbaum J, Schwarz CP, Mayer G, Prajitno CW, Matsuzawa R, Matsunaga A, Ishii A, Abe Y, Yoneki K, Harada M, Takagi Y, Yoshida A, Takahira N, Sirch J, Pfeiffer S, Fischlein T, El-Nahid MS, Issac MS, Bal Z, Tutal E, Bal U, Erkmen Uyar M, Guliyev O, Sayin B, Sezer S, Bajari T, Hermann M, Gmeiner B, Regele H, Aumayr K, Gensberger ET, Scharrer S, Sengoge G, Novo A, Tania S, Anes E, Domingues A, Mendes E, Batista G, Viana J, Rroji M, Cafka M, Seferi S, Seiti J, Petrela E, Likaj E, Thereska N, Selim G, Stojceva-Taneva O, Tozija L, Georgievska-Ismail L, Gelev S, Dzekova-Vidimliski P, Trajceska L, Petronievic Z, Sikole A, Turkmen K, Ozcicek F, Erdur F, Turk S, Yeksan M, Tonbul H, Castellano S, Palomares I, Merello JI, Mandiroglu S, Torkvatan A, Balci M, Seloglu B, Alkis M, Serin M, Erkula S, Gurbuz H, Calik Y, Afsar B, Mandiroglu F, Kirkpantur A, Ulusal Okyay G, Okyay K, Polattas Solak E, Sahinaslan A, Pasaoglu O, Ayerden Ebinc F, Boztepe Derici U, Sindel S, Arinsoy T, Lee YK, Son SY, Choi MJ, Lee SM, Yoon JW, Koo JR, Noh JW, Vaziri ND, Matias P, Amaral T, Ferreira AC, Mendes M, Azevedo A, Jorge C, Aires I, Gil C, Ferreira A, Carretero Dios D, Merello Godino JI, Moran Risco JE, Castellano Gasch S, Schwermer K, Hoppe K, Klysz P, Radziszewska D, Sikorska D, Nealis J, Polcyn-Adamczak M, Zaremba-Drobnik D, Pawlaczyk K, Oko A, Mentese A, Yavuz A, Karahan C, Sumer A, Ozkan G, Ulusoy S, Yildiz G, Duman A, Aydin H, Yilmaz A, Hur E, Magden K, Cetin G, Candan F, Franczyk-Skora B, Gluba A, Kowalczyk M, Banach M, Rysz J, Novo A, Domingues A, Preto L, Sousa T, Mendes E, Batista G, Vaz J, Oue M, Kuragano T, Hamahata S, Fukao W, Toyoda K, Nakanishi T, Otsubo S, Tsuchiya K, Akiba T, Nitta K, Afsar B, Saglam M, Yuceturk C, Agca E, Tosic J, Djuric Z, Popovic J, Buzadzic I, Djuric P, Jankovic A, Dimkovic N, Simone S, Dell'Oglio MP, Ciccone M, Castellano G, Corciulo R, Balestra C, Giangrande M, Gigante M, Grandaliano G, Gesualdo L, Pertosa GP, Mohamed EA, Marouane B, Mohamed Reda EF, Aziz R, Hicham B, Youssef B, Abdennasser EK, Salaheddine T, Mohammed A, Hwang JC, Jiang MY, Lu YH, Wang CT, Grzegorzewska A, Cieszynski K, Niepolski L, Sowinska A, Abdallah E, Al-Helal B, Waked E, Abdel-Khalik A, Nabil M, El-Shanawany F, Tekce H, Kursat S, Bahadir Colak H, Aktas G, Ozcicek A, Turkmen K, Ozcicek F, Akbas E, Demirtas L, Ozbicer A, Cetinkay R, Capoglu I, Valocikova I, Valocik G, Vachalcova M, Kolesarova E, Nowak A, Friedrich B, Artunc F, Serra A, Breidthardt T, Twerenbold R, Peter M, Potocki M, Muller C. Cardiovascular complications in CKD 5D. Nephrol Dial Transplant 2013. [DOI: 10.1093/ndt/gft147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Calder S, Garlea VO, McMorrow DF, Lumsden MD, Stone MB, Lang JC, Kim JW, Schlueter JA, Shi YG, Yamaura K, Sun YS, Tsujimoto Y, Christianson AD. Magnetically driven metal-insulator transition in NaOsO3. Phys Rev Lett 2012; 108:257209. [PMID: 23004655 DOI: 10.1103/physrevlett.108.257209] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2012] [Revised: 03/21/2012] [Indexed: 05/13/2023]
Abstract
The metal-insulator transition (MIT) is one of the most dramatic manifestations of electron correlations in materials. Various mechanisms producing MITs have been extensively considered, including the Mott (electron localization via Coulomb repulsion), Anderson (localization via disorder), and Peierls (localization via distortion of a periodic one-dimensional lattice) mechanisms. One additional route to a MIT proposed by Slater, in which long-range magnetic order in a three dimensional system drives the MIT, has received relatively little attention. Using neutron and x-ray scattering we show that the MIT in NaOsO(3) is coincident with the onset of long-range commensurate three dimensional magnetic order. While candidate materials have been suggested, our experimental methodology allows the first definitive demonstration of the long predicted Slater MIT.
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Affiliation(s)
- S Calder
- Quantum Condensed Matter Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA.
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Coentrao L, Ribeiro C, Santos-Araujo C, Neto R, Pestana M, Kleophas W, Kleophas W, Karaboyas A, LI Y, Bommer J, Pisoni R, Robinson B, Port F, Celik G, Burcak Annagur B, Yilmaz M, Demir T, Kara F, Trigka K, Dousdampanis P, Vaitsis N, Aggelakou-Vaitsi S, Turkmen K, Guney I, Turgut F, Altintepe L, Tonbul HZ, Abdel-Rahman E, Sclauzero P, Galli G, Barbati G, Carraro M, Panzetta GO, Van Diepen M, Schroijen M, Dekkers O, Dekker F, Sikole A, Severova- Andreevska G, Trajceska L, Gelev S, Amitov V, Pavleska- Kuzmanovska S, Karaboyas A, Rayner H, LI Y, Vanholder R, Pisoni R, Robinson B, Port F, Hecking M, Jung B, Leung M, Huynh F, Chung T, Marchuk S, Kiaii M, Er L, Werb R, Chan-Yan C, Beaulieu M, Malindretos P, Makri P, Zagkotsis G, Koutroumbas G, Loukas G, Nikolaou E, Pavlou M, Gourgoulianni E, Paparizou M, Markou M, Syrgani E, Syrganis C, Raimann J, Usvyat LA, Bhalani V, Levin NW, Kotanko P, Huang X, Stenvinkel P, Qureshi AR, Riserus U, Cederholm T, Barany P, Heimburger O, Lindholm B, Carrero JJ, Chang JH, Sung JY, Jung JY, Lee HH, Chung W, Kim S, Han JS, Kim S, Chang JH, Jung JY, Chung W, Na KY, Raimann J, Usvyat LA, Kotanko P, Levin NW, Fragoso A, Pinho A, Malho A, Silva AP, Morgado E, Leao Neves P, Joki N, Tanaka Y, Iwasaki M, Kubo S, Hayashi T, Takahashi Y, Hirahata K, Imamura Y, Hase H, Castledine C, Gilg J, Rogers C, Ben-Shlomo Y, Caskey F, Na KY, Kim S, Chung W, Jung JY, Chang JH, Lee HH, Sandhu JS, Bajwa GS, Kansal S, Sandhu J, Jayanti A, Nikam M, Ebah L, Summers A, Mitra S, Agar J, Perkins A, Simmonds R, Tjipto A, Amet S, Launay-Vacher V, Laville M, Tricotel A, Frances C, Stengel B, Gauvrit JY, Grenier N, Reinhardt G, Clement O, Janus N, Rouillon L, Choukroun G, Deray G, Bernasconi A, Waisman R, Montoya AP, Liste AA, Hermes R, Muguerza G, Heguilen R, Iliescu EL, Martina V, Rizzo MA, Magenta P, Lubatti L, Rombola G, Gallieni M, Loirat C, Loirat C, Mellerio H, Labeguerie M, Andriss B, Savoye E, Lassale M, Jacquelinet C, Alberti C, Aggarwal Y, Baharani J, Tabrizian S, Ossareh S, Zebarjadi M, Azevedo P, Travassos F, Frade I, Almeida M, Queiros J, Silva F, Cabrita A, Rodrigues R, Couchoud C, Kitty J, Benedicte S, Fergus C, Cecile C, Couchoud C, Sahar B, Emmanuel V, Christian J, Rene E, Barahimi H, Mahdavi-Mazdeh M, Nafar M, Petruzzi M, De Benedittis M, Sciancalepore M, Gargano L, Natale P, Vecchio MC, Saglimbene V, Pellegrini F, Gentile G, Stroumza P, Frantzen L, Leal M, Torok M, Bednarek A, Dulawa J, Celia E, Gelfman R, Hegbrant J, Wollheim C, Palmer S, Johnson DW, Ford PJ, Craig JC, Strippoli GF, Ruospo M, El Hayek B, Hayek B, Baamonde E, Bosch E, Ramirez JI, Perez G, Ramirez A, Toledo A, Lago MM, Garcia-Canton C, Checa MD, Canaud B, Canaud B, Lantz B, Pisoni R, Granger-Vallee A, Lertdumrongluk P, Molinari N, Ethier J, Jadoul M, Gillespie B, Port F, Bond C, Wang S, Alfieri T, Braunhofer P, Newsome B, Wang M, Bieber B, Guidinger M, Bieber B, Wang M, Zuo L, Pisoni R, Yu X, Yang X, Qian J, Chen N, Albert J, Yan Y, Ramirez S, Bernasconi A, Waisman R, Beresan M, Lapidus A, Canteli M, Heguilen R, Tong A, Palmer S, Manns B, Craig J, Ruospo M, Gargano L, Strippoli G, Mortazavi M, Vahdatpour B, Shahidi S, Ghasempour A, Taheri D, Dolatkhah S, Emami Naieni A, Ghassami M, Khan M, Abdulnabi K, Pai P, Ruospo M, Petruzzi M, De Benedittis M, Sciancalepore M, Gargano L, Vecchio M, Saglimbene V, Natale P, Pellegrini F, Gentile G, Stroumza P, Frantzen L, Leal M, Torok M, Bednarek A, Dulawa J, Celia E, Gelfman R, Hegbrant J, Wollheim C, Palmer S, Johnson DW, Ford PJ, Craig JC, Strippoli GF, Muqueet MA, Muqueet MA, Hasan MJ, Kashem MA, Dutta PK, Liu FX, Noe L, Quock T, Neil N, Inglese G, Qian J, Bieber B, Guidinger M, Bieber B, Chen N, Yan Y, Pisoni R, Wang M, Zuo L, Yu X, Yang X, Wang M, Albert J, Ramirez S, Ossareh S, Motamed Najjar M, Bahmani B, Shafiabadi A, Helve J, Haapio M, Groop PH, Gronhagen-Riska C, Finne P, Helve J, Haapio M, Sund R, Groop PH, Gronhagen-Riska C, Finne P, Cai M, Baweja S, Clements A, Kent A, Reilly R, Taylor N, Holt S, Mcmahon L, Usvyat LA, Carter M, Van der Sande FM, Kooman J, Raimann J, Levin NW, Kotanko P, Usvyat LA, Malhotra R, Ouellet G, Penne EL, Raimann J, Thijssen S, Levin NW, Kotanko P, Etter M, Tashman A, Guinsburg A, Grassmann A, Barth C, Marelli C, Marcelli D, Van der Sande FM, Von Gersdorff G, Bayh I, Kooman J, Scatizzi L, Lam M, Schaller M, Thijssen S, Toffelmire T, Wang Y, Sheppard P, Usvyat LA, Levin NW, Kotanko P, Neri L, Andreucci VA, Rocca-Rey LA, Bertoli SV, Brancaccio D, Tjipto A, Simmonds R, Agar J, Huang X, Stenvinkel P, Qureshi AR, Riserus U, Cederholm T, Barany P, Heimburger O, Lindholm B, Carrero JJ, Vecchio M, Palmer S, De Berardis G, Craig J, Lucisano G, Johnson D, Pellegrini F, Nicolucci A, Sciancalepore M, Saglimbene V, Gargano L, Bonifati C, Ruospo M, Navaneethan SD, Montinaro V, Stroumza P, Zsom M, Torok M, Celia E, Gelfman R, Bednarek-Skublewska A, Dulawa J, Graziano G, Gentile G, Ferrari JN, Santoro A, Zucchelli A, Triolo G, Maffei S, Hegbrant J, Wollheim C, De Cosmo S, Manfreda VM, Strippoli GF, Janus N, Janus N, Launay-Vacher V, Juillard L, Rousset A, Butel F, Girardot-Seguin S, Deray G, Hannedouche T, Isnard M, Berland Y, Vanhille P, Ortiz JP, Janin G, Nicoud P, Touam M, Bruce E, Rouillon L, Laville M, Janus N, Juillard L, Rousset A, Butel F, Girardot-Seguin S, Deray G, Hannedouche T, Isnard M, Berland Y, Vanhille P, Ortiz JP, Janin G, Nicoud P, Touam M, Bruce E, Rouillon L, Laville M, Janus N, Launay-Vacher V, Juillard L, Rousset A, Butel F, Girardot-Seguin S, Deray G, Hannedouche T, Isnard M, Berland Y, Vanhille P, Ortiz JP, Janin G, Nicoud P, Touam M, Bruce E, Rouillon L, Laville M, Grace B, Clayton P, Cass A, Mcdonald S, Baharani J, Furumatsu Y, Kitamura T, Fujii N, Ogata S, Nakamoto H, Iseki K, Tsubakihara Y, Chien CC, Wang JJ, Hwang JC, Wang HY, Kan WC, Kuster N, Kuster N, Patrier L, Bargnoux AS, Morena M, Dupuy AM, Badiou S, Canaud B, Cristol JP, Desmet JM, Fernandes V, Collart F, Spinogatti N, Pochet JM, Dratwa M, Goffin E, Nortier J, Zilisteanu DS, Voiculescu M, Rusu E, Achim C, Bobeica R, Balanica S, Atasie T, Florence S, Anne-Marie S, Michel L, Cyrille C, Emmanuel V, Strakosha A, Strakosha A, Pasko N, Kodra S, Thereska N, Lowney A, Lowney E, Grant R, Murphy M, Casserly L, O' Brien T, Plant WD, Radic J, Radic J, Ljutic D, Kovacic V, Radic M, Dodig-Curkovic K, Sain M, Jelicic I, Fujii N, Hamano T, Nakano C, Yonemoto S, Okuno A, Katayama M, Isaka Y, Nordio M, Limido A, Postorino M, Nichelatti M, Khil M, Dudar I, Khil V, Shifris I, Momtaz M, Soliman AR, El Lawindi MI, Dzekova-Vidimliski P, Pavleska-Kuzmanovska S, Trajceska L, Nikolov I, Selim G, Gelev S, Amitov V, Sikole A, Shoji T, Kakiya R, Hayashi T, Tatsumi-Shimomura N, Tsujimoto Y, Tabata T, Shima H, Mori K, Fukumoto S, Tahara H, Koyama H, Emoto M, Ishimura E, Nishizawa Y, Inaba M. Epidemiology and outcome research in CKD 5D. Nephrol Dial Transplant 2012. [DOI: 10.1093/ndt/gfs227] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Morino K, Kobayashi M, Yamada Y, Yamanouchi S, Tsujimoto Y, Takeda K, Sato S, Kimura S, Mita N, Sato M, Kushimoto S, Endo S. Cases of tetanus after the Japan crisis 2011. Crit Care 2012. [PMCID: PMC3363480 DOI: 10.1186/cc10669] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Kitada A, Tsujimoto Y, Yamamoto T, Kobayashi Y, Narumi Y, Kindo K, Aczel A, Luke G, Uemura Y, Kiuchi Y, Ueda Y, Yoshimura K, Ajiro Y, Kageyama H. Quadruple-layered perovskite (CuCl)Ca2NaNb4O13. J SOLID STATE CHEM 2012. [DOI: 10.1016/j.jssc.2011.10.038] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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Konda R, Osawa T, Nozawa T, Sugimura J, Fujioka T, Ishimoto Y, Ohki T, Uchida L, Kotera N, Tanaka M, Tanaka S, Sugimoto T, Mise N, Wu HY, Ko MJ, Yang JY, Hu FC, Chen SI, Jee SH, Chiu HC, Zumrutdal A, Hur E, Toz H, Ozkahya M, Usta M, Kayikcioglu LM, Sezis M, Asci G, Kahvecioglu S, Duman S, Ok E, Sakaguchi Y, Sonoda M, Kawabata H, Niihata K, Suzuki A, Shoji T, Tsubakihara Y, Emami Naini A, Moradi M, Mortazavi M, Shirani F, Gholamrezaei A, Demir S, San M, Koken T, Seok SJ, Gil HW, Yang JO, Lee EY, Hong SY, Stavroulopoulos A, Kossivakis A, Aresti V, Stamogiannos G, Kalliaropoulos A, Mentis A, Azak A, Huddam B, Kocak G, Altas AB, Sakaci M, Yalcin F, Ortabozkoyun L, Duranay M, Korukluoglu G, Eitner F, Scheithauer S, Mankartz J, Haefner H, Nowicki K, Floege J, Lemmen S, Hara S, Tanaka K, Suwabe T, Ubara Y, Takaichi K, Deleuze S, Bargnoux AS, Rivory JP, Rouanet C, Maurice F, Selcer I, Cristol JP, Dou Y, Thijssen S, Ouellet G, Kruse A, Rosales L, Kotanto P, Levin NW, Shahidi S, Sajjadieh S, Gholamrezaei A, Scholmann T, Straub M, Wagner D, Fliser D, Sester M, Sester U, Sikole A, Trajceska L, Selim G, Gelev S, Dzekova P, Amitov V, Arsov S, Strempska B, Bilinska M, Weyde W, Koszewicz M, Madziarska K, Golebiowski T, Klinger M, Ochi A, Ishimura E, Tsujimoto Y, Kakiya R, Tabata T, Mori K, Shoji T, Yasuda H, Nishizawa Y, Inaba M, Ezeonyeji A, Borg F, Harnett P, Dasgupta B, Raikou VD, Kyriaki D, Zeggos N, Skalioti C, Tzanatou H, Boletis JN, Viaene L, Meijers B, Bammens B, Vanrenterghem Y, Vanderschueren D, Evenepoel P, Ryu DR, An HR, Ryu JH, Yu M, Kim SJ, Kang DH, Choi KB, Miyamoto T, Rashid Qureshi A, Anderstam B, Yamamoto T, Alvestrand A, Stenvinkel P, Lindholm B, Axelsson J, Zitt E, Manamley N, Vervloet M, Georgianos P, Sarafidis P, Kanaki A, Divani M, Haidich AB, Sioulis A, Liakopoulos V, Papagianni A, Nikolaidis P, Lasaridis A, Morgado E, Pinho A, Guedes A, Guerreiro R, Mendes P, Bexiga I, Silva A, Marques J, Neves P. Pathophysiology and clinical studies in CKD 5D. Clin Kidney J 2011. [DOI: 10.1093/ndtplus/4.s2.57] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Hamada Y, Tsujimoto Y. P121. Role of non-apoptotic cell death during mouse placental vasculogenesis. Differentiation 2010. [DOI: 10.1016/j.diff.2010.09.127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Shimizu S, Konishi A, Nishida Y, Mizuta T, Nishina H, Yamamoto A, Tsujimoto Y. Involvement of JNK in the regulation of autophagic cell death. Oncogene 2010; 29:2070-82. [PMID: 20101227 DOI: 10.1038/onc.2009.487] [Citation(s) in RCA: 133] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Programmed cell death is a crucial process in the normal development and physiology of metazoans, and it can be divided into several categories that include type I death (apoptosis) and type II death (autophagic cell death). The Bcl-2 family proteins are well-characterized regulators of apoptosis, among which multidomain pro-apoptotic members (such as Bax and Bak) function as a mitochondrial gateway at which various apoptotic signals converge. Although embryonic fibroblasts from Bax/Bak double-knockout (DKO) mice are resistant to apoptosis, we have previously reported that these cells still die by autophagy in response to various death stimuli. In this study, we found that jun N-terminal kinase (JNK) was activated in etoposide- and staurosporine-treated, but not serum-starved, Bax/Bak DKO cells, and that autophagic cell death was suppressed by the addition of a JNK inhibitor and by a dominant-negative mutant of JNK. Studies with sek1(-/-)mkk7(-/-) cells revealed that disruption of JNK prevented the induction of autophagic cell death. Co-activation of JNK and autophagy induced autophagic cell death. Activation of JNK occurred downstream of the induction of autophagy, and was dependent on the autophagic process. These results indicate that JNK activation is crucial for the autophagic death of Bax/Bak DKO cells.
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Affiliation(s)
- S Shimizu
- Department of Medical Genetics, Osaka University Medical School,Yamada-oka, Suita, Osaka, Japan.
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Kamiya I, Fukuda I, Kitai Y, Tsujimoto Y, Matsuda H, Kazama T. [Epidural anesthesia for five caesarian sections in patients with placenta previa percreta combined with placenta accreta]. Masui 2009; 58:1261-1265. [PMID: 19860229] [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: 05/28/2023]
Abstract
We gave anesthesia for five cases of caesarian section in patients with placenta previa percreta combined with placenta accreta. Five caesarian sections were performed under epidural anesthesia and placentae remained in the uterus. After surgery, they were transferred to the angiography room and received uterine arterial embolization (UAE). They were given the diagnosis of the placenta accreta. However, during anesthesia in patients with placenta accreta, incomplete separation of the placenta causes atonic bleeding. And, uncleanliness of the abrasive degree may lead to difficulty in a prediction of bleeding, and control of hemodynamics is difficult. In the caesarian section of the placenta accreta, UAE prevents excessive bleeding during the operation and FloTrac monitor makes it easy to control hemodynamics.
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Affiliation(s)
- Ichiro Kamiya
- Department of Anesthesia, National Defense Medical College Hospital, Tokorozawa 359-8513
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Araki Y, Fukuda I, Kamiya I, Tsujimoto Y, Sugahara S, Kazama T. [Case of caesarean section using Cell Savers5+ in a patient with the placenta accreta associated with massive hemorrhage]. Masui 2009; 58:499-502. [PMID: 19364021] [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: 05/27/2023]
Abstract
Placenta accreta which occurs as a complication of total placenta previa is comparatively rare. And the diagnosis of placenta accreta before the caesarean section (C-section) is difficult. We experienced an extremely difficult anesthesia management of placenta accrete because of critical hemorrhage during C-section. We used self-blood collection device Cell Saver5+ (Haemonetics Japan Ltd, Tokyo) for the massive bleeding of 25,500 ml. The Cell Saver could be used to treat life threatening bleeding in C-section without any side effects, although it is thought that the use of the self-blood collection device during C-section had the danger of the amniotic fluid embolism and fetal red cell ontamination. It is necessary to consider using the Cell Saver in the obstetrical operation for life-saving medical treatment in response to unexpected massive bleeding.
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Affiliation(s)
- Yoshiyuki Araki
- Department of Anesthesiology, National Defense Medical College, Tokorozawa 359-0042
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Abstract
The main metabolites of o-xylene in urine are o-methylhippuric acid, o-toluic acid, o-toluic acid glucuronide, 3,4-dimethylphenol, 3,4-dimethylphenol conjugates and o-xylylmercapturic acid. The urinary excretion of o-toluic acid, o-toluic acid conjugates and o-xylene were increased by the prior administration of sodium benzoate. Conversely, the amounts of o-methylhippuric acid, 3,4-dimethylphenol conjugates and o-xylylmercapturic acid decreased by sodium benzoate pretreatment. In addition, the urinary excretion of o-methylhippuric acid was delayed by the pretreatment. The percentages of urinary excretion of the o-xylene metabolites were substantially changed by the pretreatment with sodium benzoate. These results therefore highlight a potential interaction of an air pollutant with a food additive, an interaction that remains to be established in man.
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Affiliation(s)
- H Moriwaki
- Osaka City Institute of Public Health and Environmental Sciences, Osaka, Japan
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Tsujimoto Y, Tanaka H, Takemura R, Yokogawa T, Shimonaka A, Matsui H, Kashiwabara SI, Watanabe K, Suzuki Y. Molecular Determinants of Substrate Recognition in Thermostable -glucosidases Belonging to Glycoside Hydrolase. J Biochem 2007. [DOI: 10.1093/jb/mvm167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Kakiya R, Shoji T, Tsujimoto Y, Tatsumi N, Hatsuda S, Shinohara K, Kimoto E, Tahara H, Koyama H, Emoto M, Ishimura E, Miki T, Tabata T, Nishizawa Y. Body fat mass and lean mass as predictors of survival in hemodialysis patients. Kidney Int 2006; 70:549-56. [PMID: 16788699 DOI: 10.1038/sj.ki.5000331] [Citation(s) in RCA: 119] [Impact Index Per Article: 6.6] [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: 11/08/2022]
Abstract
A higher body mass index (BMI) is a predictor of better survival in hemodialysis patients, although the relative importance of body fat and lean mass has not been examined in the dialysis population. We performed an observational cohort study in 808 patients with end-stage renal disease on maintenance hemodialysis. At baseline, fat mass was measured by dual-energy X-ray absorptiometry and expressed as fat mass index (FMI; kg/m2). Lean mass index (LMI) was defined as BMI minus FMI. During the mean follow-up period of 53 months, 147 deaths, including 62 cardiovascular (CV) and 85 non-CV fatal events, were recorded. In univariate analysis, LMI was not significantly associated with CV or non-CV death, whereas a higher FMI was predictive of lower risk for non-CV death. Analyses with multivariate Cox models, which took other confounding variables as covariates, indicated the independent associations between a higher LMI and a lower risk of CV death, as well as between a higher FMI and a lower risk of non-CV death. These results indicate that increased fat mass and lean mass were both conditions associated with better outcomes in the dialysis population.
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Affiliation(s)
- R Kakiya
- Division of Internal Medicine, Inoue Hospital, Suita, Japan
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Ito K, Oji Y, Tatsumi N, Shimizu S, Kanai Y, Nakazawa T, Asada M, Jomgeow T, Aoyagi S, Nakano Y, Tamaki H, Sakaguchi N, Shirakata T, Nishida S, Kawakami M, Tsuboi A, Oka Y, Tsujimoto Y, Sugiyama H. Antiapoptotic function of 17AA(+)WT1 (Wilms' tumor gene) isoforms on the intrinsic apoptosis pathway. Oncogene 2006; 25:4217-29. [PMID: 16518414 DOI: 10.1038/sj.onc.1209455] [Citation(s) in RCA: 75] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The WT1 gene is overexpressed in human primary leukemia and a wide variety of solid cancers. The WT1 gene is alternatively spliced at two sites, yielding four isoforms: 17AA(+)KTS(+), 17AA(+)KTS(-), 17AA(-)KTS(+), and 17AA(-)KTS(-). Here, we showed that 17AA(+)WT1-specific siRNA induced apoptosis in three WT1-expressing leukemia cell lines (K562, HL-60, and Kasumi-1), but not in WT1-non-expressing lymphoma cell line (Daudi). 17AA(+)WT1-specific siRNA activated caspase-3 and -9 in the intrinsic apoptosis pathway but not caspase-8 in the extrinsic one. On the other hand, 17AA(-)WT1-specific siRNA did not induce apoptosis in the three WT1-expressing cell lines. The apoptosis was associated with activation of proapoptotic Bax, which was activated upstream of the mitochondria. Constitutive expression of 17AA(+)WT1 isoforms inhibited apoptosis of K562 leukemia cells induced by apoptosis-inducing agents, etoposide and doxorubicin, through the protection of mitochondrial membrane damages, and DNA-binding zinc-finger region of 17AA(+)WT1 isoform was essential for the antiapoptotic functions. We further studied the gene(s) whose expression was altered by the expression of 17AA(+)WT1 isoforms and showed that the expression of proapoptotic Bak was decreased by the expression of 17AA(+)KTS(-)WT1 isoform. Taken together, these results indicated that 17AA(+)WT1 isoforms played antiapoptotic roles at some points upstream of the mitochondria in the intrinsic apoptosis pathway.
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Affiliation(s)
- K Ito
- Department of Functional Diagnostic Science, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
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Takahashi T, Honda H, Hirai H, Tsujimoto Y. Overexpressed Bcl-x(L) prevents bacterial superantigen-induced apoptosis of thymocytes in vitro. Cell Death Differ 2006; 4:159-65. [PMID: 16465222 DOI: 10.1038/sj.cdd.4400214] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/1999] [Revised: 09/30/1999] [Accepted: 10/04/1999] [Indexed: 11/09/2022] Open
Abstract
bcl-x, a homologous gene of bcl-2, has an anti-apoptotic function and appears to play a critical role in the development of lymphoid systems. To investigate the effect of overexpressed Bcl-x(L) on the development of T lymphocytes, we established two lines of transgenic mice by using Emu-chicken bcl-x(L) (cbcl-x(L)) transgene, where the cBcl-x(L) protein was expressed mainly in lymphoid cells. Although thymocytes and splenocytes from cbcl-x(L) transgenic mice are resistant to apoptosis in vitro, clonal deletion of thymocytes, recognizing endogenous self-superantigens in the thymus, still normally proceeded and no self-reactive T cells were found in the spleen of the transgenic mice. To dissect clonal deletion, we utilized two in vitro models, thymocytes/antigen presenting cells co-culture system and fetal thymus organ culture system. In both, bacterial superantigen staphylococcus aureus enterotoxin B (SEB) induces apoptosis of T cells with Vbeta8+ T cell receptor (TCR) reacting to SEB, which mimics clonal deletion of self-reactive thymocytes in vivo. SEB-induced depletion of Vbeta8+ T cells from thymocytes when taken from the transgenic mice was effectively inhibited. The data might raise the possibility that cell death process involved in clonal deletion in the thymus is a form of apoptosis inhibited by Bcl-x(L).
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Affiliation(s)
- T Takahashi
- Department of Medical Genetics, Biomedical Research Center, Osaka University Medical School, 2-2 Yamadaoka, Suita, Osaka 565, Japan
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Elinder F, Akanda N, Tofighi R, Shimizu S, Tsujimoto Y, Orrenius S, Ceccatelli S. Opening of plasma membrane voltage-dependent anion channels (VDAC) precedes caspase activation in neuronal apoptosis induced by toxic stimuli. Cell Death Differ 2005; 12:1134-40. [PMID: 15861186 DOI: 10.1038/sj.cdd.4401646] [Citation(s) in RCA: 90] [Impact Index Per Article: 4.7] [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: 11/09/2022] Open
Abstract
Apoptotic cell death is an essential process in the development of the central nervous system and in the pathogenesis of its degenerative diseases. Efflux of K(+) and Cl(-) ions leads to the shrinkage of the apoptotic cell and facilitates the activation of caspases. Here, we present electrophysiological and immunocytochemical evidences for the activation of a voltage-dependent anion channel (VDAC) in the plasma membrane of neurons undergoing apoptosis. Anti-VDAC antibodies blocked the channel and inhibited the apoptotic process. In nonapoptotic cells, plasma membrane VDAC1 protein can function as a NADH (-ferricyanide) reductase. Opening of VDAC channels in apoptotic cells was associated with an increase in this activity, which was partly blocked by VDAC antibodies. Hence, it appears that there might be a dual role for this protein in the plasma membrane: (1) maintenance of redox homeostasis in normal cells and (2) promotion of anion efflux in apoptotic cells.
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Affiliation(s)
- F Elinder
- Department of Biomedicine and Surgery, Division of Cell Biology, Linköpings Universitet, Linköping SE-581 85, Sweden.
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Hirata K, Tsujimoto Y, Namba T, Ohta T, Hirayanagi N, Miyasaka H, Zenk MH, Miyamoto K. Strong induction of phytochelatin synthesis by zinc in marine green alga, Dunaliella tertiolecta. J Biosci Bioeng 2005; 92:24-9. [PMID: 16233052 DOI: 10.1263/jbb.92.24] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2000] [Accepted: 04/04/2001] [Indexed: 11/17/2022]
Abstract
Synthesis of phytochelatins (PCs), heavy-metal-sequestering peptides, in the marine green alga, Dunaliella tertiolecta, was evaluated under various conditions of exposure to heavy metals. To investigate the effect of heavy metals on both PC synthesis and their upstream biosynthetic reactions, an ion-pair-HPLC system was developed in this study, by which PCs and their biosynthetic intermediates, cysteine (Cys), gamma-glutamylcysteine (gammaEC) and glutathione (GSH), could be determined simultaneously with high sensitivity. When the cells were exposed to Zn2+, the level of PCs was maximal at 200 microM and significantly higher than that obtained after exposure to 400 microM Cd2+, which is the strongest inducer of PC synthesis in higher plants in vivo and in vitro as well as in microalgae. The predominant PC subtype was PC4, followed by PC3 and PC5, whereas PC2, which is generally abundant in higher plants, has the lowest level among PC2 to PC5. These results suggest that the characteristics of PC synthase in D. tertiolecta including the requirement of heavy metals for its catalysis and substrate specificity towards GSH and PC(n) are considerably different from those in higher plants and other algae. While PC synthesis proceeded in the heavy-metal-treated cells, the level of GSH did not appreciably change. To maintain the same size of the GSH pool, GSH must be newly synthesized to balance the amount consumed for PC synthesis.
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Affiliation(s)
- K Hirata
- Environmental Bioengineering Laboratory, Graduate School of Pharmaceutical Sciences, Osaka University, 1-6 Yamada-oka, Suita, Osaka 565-0871, Japan.
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Abstract
Programmed cell death (PCD) is one of the important terminal paths for the cells of metazoans, and is involved in a variety of biological events that include morphogenesis, maintenance of tissue homeostasis, and elimination of harmful cells. Dysfunction of PCD leads to various diseases in humans, including cancer and several degenerative diseases. Apoptosis is not the only form of PCD. Recent studies have provided evidence that there is another mechanism of PCD, which is associated with the appearance of autophagosomes and depends on autophagy proteins. This form of cell death most likely corresponds to a process that has been morphologically defined as autophagic PCD. The present review summarizes recent experimental evidence about autophagic PCD and discusses some aspects of this form of cell death, including the mechanisms that may distinguish autophagic death from the process of autophagy involved in cell survival.
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Affiliation(s)
- Y Tsujimoto
- Laboratory of Molecular Genetics, Department of Medical Genetics, Osaka University Medical School, 2-2 Yamadaoka, Suita, Osaka 565-0871, Japan.
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Tsujimoto Y, Tsutsui M, Kazama T, Ogura T, Fukuda I. [Comparison of cardiac output measured by pulseCO and that by vigilance during inferior vena cava clamping]. Masui 2005; 54:1138-42. [PMID: 16231769] [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: 05/04/2023]
Abstract
BACKGROUND PulseCO is a low invasive apparatus to measure cardiac output continuously from arterial pulse waveform (PulseCCO). It is thought that the accuracy of PulseCCO measurement is clinically acceptable with stable hemodynamics. We measured and evaluated PulseCCO during inferior vena cava clamp (IVC clamp). METHODS Anesthesia was induced with propofol and vecuronium. After induction, an arterial catheter and a pulmonary artery catheter were inserted, and anesthesia was maintained with general anesthesia and continuous epidural anesthesia. At first IVC was clamped for five minutes and after an interval of five minutes IVC was clamped again. During IVC clamp maneuver, we measured PulseCCO and continuous cardiac output with Vigilance (VigilanceCCO). RESULTS At the time of the first IVC clamp and declamp, VigilanceCCO was unchanged, but Pulse CCO showed a marked change. After the second IVC clamp, both PulseCCO and VigilanceCCO decreased, but the change was slower with VigilanceCCO. CONCLUSIONS With IVC clamp maneuver which is thought to cause rapid change of cardiac output, PulseCCO showed more rapid change in comparison with VigilanceCCO. In the state where hemodynamics change rapidly, PulseCO can be a more useful monitor.
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Shinohara K, Shoji T, Tsujimoto Y, Kimoto E, Hatsuda S, Tahara H, Koyama H, Emoto M, Ishimura E, Tabata T, Nishizawa Y. T04-P-040 Effects of uremia and hemodialysis onregional arterial stiffness. ATHEROSCLEROSIS SUPP 2005. [DOI: 10.1016/s1567-5688(05)80631-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Abstract
Nitrous oxide (N2O) is a trace gas contributing to stratospheric ozone depletion and global warming. Although a large quantity of information exists about N2O emissions from various ecosystems, this study was initiated to demonstrate the features of N2O emissions from sea-based waste disposal sites in Osaka City in relation to CH4 emissions. Average N2O emissions at an active landfill (S-Site) were several times higher than those at a closed landfill (N-Site). Average CH4 emissions were also much greater at the S-Site. Regarding the nature of N2O emissions, remarkable emissions often were observed with aerobic waste layers at the N-Site, suggesting almost inversely related N2O emissions with CH4 production at the N-Site. However, at the S-Site a few exceptionally high N2O emissions were noted in cases of high CH4 emissions.
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Affiliation(s)
- Y Tsujimoto
- Division of Environmental Engineering, Osaka City Institute of Public Health and Environmental Sciences, Osaka, Japan
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Cadden IS, Johnston BT, Connolly R, Gates D, Tsujimoto Y, Eguchi Y, McGinty A. An investigation into the role of Bcl-2 in neuroendocrine differentiation. Biochem Biophys Res Commun 2005; 326:442-8. [PMID: 15582597 DOI: 10.1016/j.bbrc.2004.11.046] [Citation(s) in RCA: 1] [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] [Received: 11/05/2004] [Indexed: 11/26/2022]
Abstract
INTRODUCTION In addition to its role in apoptosis suppression, Bcl-2 has been reported to be co-expressed with neuroendocrine markers in several tissues, leading to speculation that this oncoprotein may promote neuroendocrine differentiation. AIM This study investigated whether Bcl-2 modulated neuroendocrine biopeptide expression. METHODS Levels of chromogranin A, neurone specific enolase, protein gene peptide 9.5, pancreatic polypeptide, and the chromogranin-derived peptides, intervening peptide and vasostatin-1 were examined by immunocytochemistry in rat phaeochromocytoma (PC12) cell lines genetically engineered to over-express Bcl-2 and their mock-transfected controls. Intensity of fluorescence was graded using a semi-quantitative scale from (-) indicating negative expression to (+++) indicating intense positivity. RESULTS Mann-Whitney U analysis indicated that no significant differences in expression existed between control and Bcl2 over-expressing cell lines for any of the six peptides examined. CONCLUSIONS The results of this study do not support the hypothesis that Bcl-2 promotes the acquisition of a neuroendocrine phenotype.
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Affiliation(s)
- I S Cadden
- Department of Medicine, Queen's University Belfast, Mulhouse Building, RGH, Belfast BT12 6BJ, N. Ireland, UK
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Murai A, Tsujimoto Y, Matsui H, Watanabe K. An Aneurinibacillus sp. strain AM-1 produces a proline-specific aminopeptidase useful for collagen degradation. J Appl Microbiol 2004; 96:810-8. [PMID: 15012820 DOI: 10.1111/j.1365-2672.2004.02210.x] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
AIMS We have been for a species of thermophilic bacteria that can effectively decompose collagen and collagen peptides that tend to be hard-to-degrade proteins because of their high content of proline residues. This study focused upon the enzymatic degradation of prolyl peptides by thermophilic bacteria. METHODS AND RESULTS A strain, AM-1, producing a proline-specific aminopeptidase was isolated using a medium containing gelatin that was taken from soil samples collected at Arima Hot Spring located near Kobe, Japan. The strain showed the strongest level of hydrolysing activity toward prolyl-p-nitroanilide, and the activity proved to be thermostable. Phylogenetic analysis based on 16S rDNA sequences revealed that the isolated strain AM-1 was closest to Aneurinibacillus thermoaerophilus DSM10154T in its characteristics. Analysis of the purified proline-specific aminopeptidase suggested that the enzyme is an aminopeptidase containing metal that includes important disulphide bond(s). The strain AM-1 aminopeptidase has more similarities with leucyl aminopeptidases, but its activity level differs greatly with prolyl peptides. CONCLUSIONS The proline-specific aminopeptidase from strain AM-1 is the first from the genus Aneurinibacillus and may be a new type of aminopeptidase for hydrolysing prolyl peptide. This enzyme also contributed to the degradation of collagen when used in combination with another collagenolytic protease. SIGNIFICANCE AND IMPACT OF THE STUDY The proline-specific aminopeptidase obtained from strain AM-1 may be used in the treatment of wastewater containing collagen that is encountered in the meat industries, and for decreasing bitter peptides in milk products.
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Affiliation(s)
- A Murai
- Department of Applied Biochemistry, Kyoto Prefectural University, Shimogamo, Sakyo, Kyoto, Japan
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