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Barsukov I, Lee HK, Jara AA, Chen YJ, Gonçalves AM, Sha C, Katine JA, Arias RE, Ivanov BA, Krivorotov IN. Giant nonlinear damping in nanoscale ferromagnets. Sci Adv 2019; 5:eaav6943. [PMID: 31692831 PMCID: PMC6814369 DOI: 10.1126/sciadv.aav6943] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/24/2019] [Accepted: 09/13/2019] [Indexed: 06/10/2023]
Abstract
Magnetic damping is a key metric for emerging technologies based on magnetic nanoparticles, such as spin torque memory and high-resolution biomagnetic imaging. Despite its importance, understanding of magnetic dissipation in nanoscale ferromagnets remains elusive, and the damping is often treated as a phenomenological constant. Here, we report the discovery of a giant frequency-dependent nonlinear damping that strongly alters the response of a nanoscale ferromagnet to spin torque and microwave magnetic field. This damping mechanism originates from three-magnon scattering that is strongly enhanced by geometric confinement of magnons in the nanomagnet. We show that the giant nonlinear damping can invert the effect of spin torque on a nanomagnet, leading to an unexpected current-induced enhancement of damping by an antidamping torque. Our work advances the understanding of magnetic dynamics in nanoscale ferromagnets and spin torque devices.
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Affiliation(s)
- I. Barsukov
- Physics and Astronomy, University of California, Irvine, CA 92697, USA
- Physics and Astronomy, University of California, Riverside, CA 92521, USA
| | - H. K. Lee
- Physics and Astronomy, University of California, Irvine, CA 92697, USA
| | - A. A. Jara
- Physics and Astronomy, University of California, Irvine, CA 92697, USA
| | - Y.-J. Chen
- Physics and Astronomy, University of California, Irvine, CA 92697, USA
| | - A. M. Gonçalves
- Physics and Astronomy, University of California, Irvine, CA 92697, USA
| | - C. Sha
- Physics and Astronomy, University of California, Irvine, CA 92697, USA
| | - J. A. Katine
- Western Digital, 5600 Great Oaks Parkway, San Jose, CA 95119, USA
| | - R. E. Arias
- Departamento de Física, CEDENNA, FCFM, Universidad de Chile, Santiago, Chile
| | - B. A. Ivanov
- Institute of Magnetism, National Academy of Sciences of Ukraine, Vernadsky Avenue 36B, Kyiv 03142, Ukraine
- National University of Science and Technology MISiS, Moscow 119049, Russian Federation
| | - I. N. Krivorotov
- Physics and Astronomy, University of California, Irvine, CA 92697, USA
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Barrans S, Painter D, van Hoppe S, Smith A, Sha C, Cucco F, Du M, Westhead D, Davies A, Johnson P, Roman E, Burton C. DEFINING BURKITT-LIKE LYMPHOMA WITH 11Q ABERRATION IN A SPECIALISED UK HAEMATOPATHOLOGY DIAGNOSTIC SERVICE. Hematol Oncol 2019. [DOI: 10.1002/hon.101_2629] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- S. Barrans
- HMDS; Leeds Cancer Centre; Leeds United Kingdom
| | - D. Painter
- ECSG; Health Sciences, University of York; York United Kingdom
| | | | - A. Smith
- ECSG; Health Sciences, University of York; York United Kingdom
| | - C. Sha
- School of Molecular and Cellular Biology (Faculty of Biological Sciences); University of Leeds; Leeds United Kingdom
| | - F. Cucco
- Department of Pathology; University of Cambridge; Cambridge United Kingdom
| | - M. Du
- Department of Pathology; University of Cambridge; Cambridge United Kingdom
| | - D. Westhead
- School of Molecular and Cellular Biology (Faculty of Biological Sciences); University of Leeds; Leeds United Kingdom
| | - A. Davies
- Faculty of Medicine; University of Southampton; Southampton United Kingdom
| | - P. Johnson
- Faculty of Medicine; University of Southampton; Southampton United Kingdom
| | - E. Roman
- ECSG; Health Sciences, University of York; York United Kingdom
| | - C. Burton
- HMDS; Leeds Cancer Centre; Leeds United Kingdom
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3
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Cummin T, Cox K, Murray T, Barrans S, Sha C, Westhead D, Burton C, Davies A, Cragg M, Johnson P, Carter M. HIGH EXPRESSION OF BCL-2 AND BCL-XL IN DIFFUSE LARGE B-CELL LYMPHOMA CONFER POOR PROGNOSIS BUT MAY BE REVERSIBLE BY COMBINED INHIBITION WITH BET INHIBITORS AND BH3 MIMETICS. Hematol Oncol 2019. [DOI: 10.1002/hon.84_2629] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- T.E. Cummin
- Cancer Sciences; University of Southampton; Southampton United Kingdom
| | - K. Cox
- Cancer Sciences; University of Southampton; Southampton United Kingdom
| | - T. Murray
- Cancer Sciences; University of Southampton; Southampton United Kingdom
| | - S. Barrans
- Haematalogical Malignancies Diagnostic Service; University of Leeds; Leeds United Kingdom
| | - C. Sha
- Faculty of Biological Sciences; University of Leeds; Leeds United Kingdom
| | - D. Westhead
- Faculty of Biological Sciences; University of Leeds; Leeds United Kingdom
| | - C. Burton
- Haematalogical Malignancies Diagnostic Service; University of Leeds; Leeds United Kingdom
| | - A. Davies
- Southampton Clinical Trials Unit; University of Southampton; Southampton United Kingdom
| | - M. Cragg
- Cancer Sciences; University of Southampton; Southampton United Kingdom
| | - P. Johnson
- Cancer Sciences; University of Southampton; Southampton United Kingdom
| | - M. Carter
- Cancer Sciences; University of Southampton; Southampton United Kingdom
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Korfi K, Araf S, Bewicke-Copley F, Kumar E, Cummin T, Ashton-Key M, Barrans S, Van Hoppe S, Burton C, Elshiekh M, Rule S, Crosbie N, Clear A, Calaminici M, Menon G, Sha C, Bentley M, Nagano A, Davies A, Painter D, Smith A, Okosun J, Gribben J, Naresh K, Westhead D, Wang J, Johnson P, Fitzgibbon J. LONGITUDINAL ANALYSES OF DIAGNOSTIC-RELAPSE BIOPSIES OF DIFFUSE LARGE B CELL LYMPHOMA SUGGEST THAT RELAPSE IS MEDIATED BY DISTINCT MECHANISMS IN ABC AND GCB LYMPHOMA. Hematol Oncol 2019. [DOI: 10.1002/hon.100_2629] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- K. Korfi
- Centre for Haemato-Oncology; Barts Cancer Institute; London United Kingdom
| | - S. Araf
- Centre for Haemato-Oncology; Barts Cancer Institute; London United Kingdom
| | - F. Bewicke-Copley
- Centre for Molecular Oncology; Barts Cancer Institute; London United Kingdom
| | - E. Kumar
- Centre for Haemato-Oncology; Barts Cancer Institute; London United Kingdom
| | - T. Cummin
- Cancer Research UK Centre; University of Southampton; Southampton United Kingdom
| | - M. Ashton-Key
- Cellular Pathology; University Hospital Southampton NHS Foundation Trust; Southampton United Kingdom
| | - S. Barrans
- HMDS; Leeds Teaching Hospitals NHS Trust; Leeds United Kingdom
| | - S. Van Hoppe
- HMDS; Leeds Teaching Hospitals NHS Trust; Leeds United Kingdom
| | - C. Burton
- HMDS; Leeds Teaching Hospitals NHS Trust; Leeds United Kingdom
| | - M. Elshiekh
- Cellular & Molecular Pathology; Imperial College NHS Trust & Imperial College London; London United Kingdom
| | - S. Rule
- Department of Haematology; Derriford Hospital, University of Plymouth; Plymouth United Kingdom
| | - N. Crosbie
- Department of Haematology; University Hospitals Plymouth NHS Trust; Plymouth United Kingdom
| | - A. Clear
- Centre for Haemato-Oncology; Barts Cancer Institute; London United Kingdom
| | - M. Calaminici
- Centre for Haemato-Oncology; Barts Cancer Institute; London United Kingdom
| | - G. Menon
- Haemato-Oncology Diagnostic Service; Liverpool Clinical Laboratories; Liverpool United Kingdom
| | - C. Sha
- School of Molecular and Cellular Biology; University of Leeds; Leeds United Kingdom
| | - M. Bentley
- School of Molecular and Cellular Biology; University of Leeds; Leeds United Kingdom
| | - A. Nagano
- Centre for Molecular Oncology; Barts Cancer Institute; London United Kingdom
| | - A. Davies
- Cancer Research UK Centre; University of Southampton; Southampton United Kingdom
| | - D. Painter
- Epidemiology and Cancer Statistics Group; University of York; York United Kingdom
| | - A. Smith
- Epidemiology and Cancer Statistics Group; University of York; York United Kingdom
| | - J. Okosun
- Centre for Haemato-Oncology; Barts Cancer Institute; London United Kingdom
| | - J. Gribben
- Centre for Haemato-Oncology; Barts Cancer Institute; London United Kingdom
| | - K.N. Naresh
- Cellular & Molecular Pathology; Imperial College NHS Trust & Imperial College London; London United Kingdom
| | - D. Westhead
- School of Molecular and Cellular Biology; University of Leeds; Leeds United Kingdom
| | - J. Wang
- Centre for Molecular Oncology; Barts Cancer Institute; London United Kingdom
| | - P. Johnson
- Cancer Research UK Centre; University of Southampton; Southampton United Kingdom
| | - J. Fitzgibbon
- Centre for Haemato-Oncology; Barts Cancer Institute; London United Kingdom
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Yang YM, Cui Z, Wang ZW, Yuan QG, Sha C, Wang DM. [Sinus pericranii in adults: clinical features and therapeutic management (13 cases report)]. Zhonghua Yi Xue Za Zhi 2017; 97:2124-2127. [PMID: 28763888 DOI: 10.3760/cma.j.issn.0376-2491.2017.27.010] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To study the character of sinus pericranii in the adults and enhance the levels of the diagnosis and treatment of sinus pericranii. Methods: The clinical data of 13 adult patients with sinuses pericranii undergoing surgery in Beijing Hospital from 1992 to 2016 were analyzed retrospectively, including clinical manifestations, imaging data, surgical results. Results: Each of the patients presented with a nonpulsatile and soft tissue mass in their heads.Their ages ranged from 18 to 48 years (mean, 26 years). The diagnosis of the sinus pericranii was made by the clinical manifestations combined with CT and/or MRI examinations.The sinus pericranii did not play the main role in the drainage of the cerebral vein blood.All the patients were cured.The follow up time was from 6 months to 20 years with no sinus pericranii recurrence in all the patients. Conclusions: The analysis of the drainage pattern of sinus pericranii was necessary before surgery in order to get a safe and good operation.The curative effect of the surgery on the sinus pericranii in adult was reliable.
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Affiliation(s)
- Y M Yang
- Department of Neurosurgery, Beijing Hospital, National Center of Gerontology, Beijing 100730, China
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Davies A, Barrans S, Maishman T, Cummin T, Bentley M, Mamot C, Novak U, Caddy J, Hamid D, Kazmi-Stokes S, Mcmillan A, Fields P, Pocock C, Kruger A, Collins G, Sha C, Clipson A, Wang M, Tooze R, Care M, Griffiths G, Du M, Westhead D, Burton C, Jack A, Johnson P. DIFFERENTIAL EFFICACY OF BORTEZOMIB IN SUBTYPES OF DIFFUSE LARGE B-CELL LYMPHOMA (DLBL): a PROSPECTIVE RANDOMISED STUDY STRATIFIED BY TRANSCRIPTOME PROFILING: REMODL-B. Hematol Oncol 2017. [DOI: 10.1002/hon.2437_120] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- A.J. Davies
- Cancer Research UK Centre; University of Southampton (PMAL Consortium); Southampton UK
| | - S. Barrans
- Haematological Malignancy Diagnostic Service, Haematological Malignancy Diagnostic Service; St. James's Institute of Oncology, Leeds; Leeds UK
| | - T. Maishman
- Southampton Clinical Trials Unit; University of Southampton; Southampton UK
| | - T.E. Cummin
- Cancer Research UK Centre; University of Southampton (PMAL Consortium); Southampton UK
| | - M. Bentley
- School of Molecular and Cellular Biology; University of Leeds; Leeds UK
| | - C. Mamot
- Swiss Group for Clinical Cancer Research (SAKK); Kantonsspital Aarau; Bern Switzerland
| | - U. Novak
- Swiss Group for Clinical Cancer Research (SAKK); Inselspital / Bern University Hospital; Bern Switzerland
| | - J. Caddy
- Cancer Research UK Centre; University of Southampton (PMAL Consortium); Southampton UK
| | - D. Hamid
- Southampton Clinical Trials Unit; University of Southampton; Southampton UK
| | - S.H. Kazmi-Stokes
- Cancer Research UK Centre; University of Southampton (PMAL Consortium); Southampton UK
| | - A. Mcmillan
- Haematology; Nottingham City Hospital; Nottingham UK
| | - P.A. Fields
- Haematology; Guy's and St Thomas' and King's College Hospitals; London UK
| | - C. Pocock
- Haematology; East Kent Hospitals University NHS Trust; Canterbury UK
| | - A. Kruger
- Haematology; Royal Cornwall Hospital; Truro UK
| | - G. Collins
- Clinical Haematology; Churchill Hospital; Oxford UK
| | - C. Sha
- Bioinformatics group, IMCB; University of Leeds; Leeds UK
| | - A. Clipson
- Division of Molecular Histopathology; University of Cambridge; Cambridge UK
| | - M. Wang
- Division of Molecular Histopathology; University of Cambridge; Cambridge UK
| | - R.M. Tooze
- Faculty of Medicine and Health; University of Leeds; Leeds UK
| | - M.A. Care
- Faculty of Medicine and Health; University of Leeds; Leeds UK
| | - G.O. Griffiths
- Southampton Clinical Trials Unit; University of Southampton; Southampton UK
| | - M. Du
- Division of Molecular Histopathology; University of Cambridge; Cambridge UK
| | - D.R. Westhead
- School of Molecular and Cellular Biology; University of Leeds; Leeds UK
| | - C. Burton
- Haematological Malignancy Diagnostic Service, Haematological Malignancy Diagnostic Service; St. James's Institute of Oncology, Leeds; Leeds UK
| | - A. Jack
- Haematological Malignancy Diagnostic Service, Haematological Malignancy Diagnostic Service; St. James's Institute of Oncology, Leeds; Leeds UK
| | - P.W. Johnson
- Cancer Research UK Centre; University of Southampton (PMAL Consortium); Southampton UK
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Burton C, Barrans S, Van Hoppe S, Sha C, Taylor J, Evans P, Painter D, Smith A, Crouch S, Goodlad J, Roman E, Westhead D, Davies A, Johnson P. GENE EXPRESSION PROFILING AND MUTATION ANALYSIS CAN AID TREATMENT DECISION MAKING IN AGGRESSIVE B CELL LYMPHOMA PATIENTS. Hematol Oncol 2017. [DOI: 10.1002/hon.2438_10] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
| | | | | | - C. Sha
- School of Molecular and Cellular Biology; University of Leeds; Leeds UK
| | | | - P. Evans
- HMDS; Leeds Cancer Centre; Leeds UK
| | - D. Painter
- Epidemiology & Cancer Statistics Group; University of York; York UK
| | - A. Smith
- Epidemiology & Cancer Statistics Group; University of York; York UK
| | - S. Crouch
- Epidemiology & Cancer Statistics Group; University of York; York UK
| | | | - E. Roman
- Epidemiology & Cancer Statistics Group; University of York; York UK
| | - D. Westhead
- School of Molecular and Cellular Biology; University of Leeds; Leeds UK
| | - A. Davies
- Cancer Research UK Centre; University of Southampton; Southampton UK
| | - P.W. Johnson
- Cancer Research UK Centre; University of Southampton; Southampton UK
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Bentley M, Barrans S, Ahmed S, Taylor J, Burton C, Care M, Sha C, Westhead D. Pan-lymphoma classification. Hematol Oncol 2017. [DOI: 10.1002/hon.2439_31] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- M.A. Bentley
- Institute of Molecular and Cellular Biology; University of Leeds; Leeds UK
| | - S. Barrans
- PNH National Service; Haematology Malignancy Diagnostic Service; Leeds UK
| | - S.M. Ahmed
- PNH National Service; Haematology Malignancy Diagnostic Service; Leeds UK
| | - J. Taylor
- PNH National Service; Haematology Malignancy Diagnostic Service; Leeds UK
| | - C. Burton
- PNH National Service; Haematology Malignancy Diagnostic Service; Leeds UK
| | - M.A. Care
- Institute of Molecular and Cellular Biology; University of Leeds; Leeds UK
| | - C. Sha
- Institute of Molecular and Cellular Biology; University of Leeds; Leeds UK
| | - D. Westhead
- Institute of Molecular and Cellular Biology; University of Leeds; Leeds UK
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Burton C, Sha C, Barrans S, Jack A, Painter D, Smith A, Roman E, Crouch S, Care M, Tooze R, Westhead D. A category-free approach to prognostic modelling in aggressive non-Hodgkin B cell lymphomas based on large patient databases. Hematol Oncol 2017. [DOI: 10.1002/hon.2439_70] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- C. Burton
- Leeds Cancer Centre; Haematology Malignancy Diagnostic Service; Leeds UK
| | - C. Sha
- University of Leeds; Institute of Molecular and Cellular Biology; Leeds UK
| | - S. Barrans
- Leeds Cancer Centre; Haematology Malignancy Diagnostic Service; Leeds UK
| | - A. Jack
- Leeds Cancer Centre; Haematology Malignancy Diagnostic Service; Leeds UK
| | - D. Painter
- University of York; Epidemiology and Cancer Statistics Group; York UK
| | - A. Smith
- University of York; Epidemiology and Cancer Statistics Group; York UK
| | - E. Roman
- University of York; Epidemiology and Cancer Statistics Group; York UK
| | - S. Crouch
- University of York; Epidemiology and Cancer Statistics Group; York UK
| | - M. Care
- University of Leeds; Leeds Institute of Cancer and Pathology; Leeds UK
| | - R. Tooze
- University of Leeds; Leeds Institute of Cancer and Pathology; Leeds UK
| | - D. Westhead
- University of Leeds; Institute of Molecular and Cellular Biology; Leeds UK
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Yang YM, Wang ZW, Cui Z, Jiang HZ, Sha C, Yuan QG, Xie HW, Wang DM. [Anatomy and management of superior petrosal vein in microvascular decompression for trigeminal neuralgia]. Zhonghua Yi Xue Za Zhi 2017; 97:522-524. [PMID: 28260292 DOI: 10.3760/cma.j.issn.0376-2491.2017.07.010] [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] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the characteristics of superior petrosal vein (SPV) and its influence on the surgical field in microvascular decompression (MVD) for trigeminal neuralgia (TN), and to analyze the effect of the surgical treatment of SPV on the surgical approach, indication and prognosis. Methods: The clinical data of 280 patients with trigeminal neuralgia between Jan. 2013 and Jun. 2016 were collected, including the trunks and the branches of SPV, intraoperative electrocoagulation status, the surgery outcome and complications. Results: The petrosal vein during the operation was fully preserved in 152 cases (54.29%). The SPV were completely sectioned in 25 cases (8.92%), while some branches of SPV were sectioned in 103 cases (36.79%). We found that SPV have 1 to 3 trunks, accounted for 67 cases (23.90%), 168 cases (60%), and 45 cases (16.10%), while the SPV with 1 to 4 branches accounted for 17 cases (6.07%), 112 cases (40%), 136 cases (48.57%), and 15 cases (5.36%). The SPV was identified as offending vessel in 17 cases (6.07%). One patient with cutoff SPV trunk encountered cerebellar infarction and recovered completely at 2 weeks after MVD by using intravenous medication. Conclusions: MVD is the recommended treatment method for PTN, mostly SPV is unnecessary to be sectioned completely and small branches of SPV could be sacrificed. Very few patients may develop cerebellar infarction or hematoma.
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Affiliation(s)
- Y M Yang
- Department of Neurosurgery, Beijing Hospital, National Center of Gerontology, Beijing 100730, China
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Xiang D, Yue J, Lan Y, Sha C, Ren S, Li Y, Li M, Wang C. Evaluation of Mindray BC-5000 hematology analyzer: a new miniature 5-part WBC differential instrument. Int J Lab Hematol 2015; 37:597-605. [PMID: 25944368 DOI: 10.1111/ijlh.12370] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2014] [Accepted: 02/17/2015] [Indexed: 11/29/2022]
Affiliation(s)
- D. Xiang
- Department of Clinical Laboratory; Chinese People's Liberation Army General Hospital; Beijing China
| | - J. Yue
- Department of Clinical Laboratory; Chinese People's Liberation Army General Hospital; Beijing China
| | - Y. Lan
- Department of Clinical Laboratory; Chinese People's Liberation Army General Hospital; Beijing China
| | - C. Sha
- Department of Clinical Laboratory; Chinese People's Liberation Army General Hospital; Beijing China
| | - S. Ren
- Department of Clinical Laboratory; Chinese People's Liberation Army General Hospital; Beijing China
| | - Y. Li
- Department of Clinical Laboratory; Chinese People's Liberation Army General Hospital; Beijing China
| | - M. Li
- Department of Clinical Laboratory; Chinese People's Liberation Army General Hospital; Beijing China
| | - C. Wang
- Department of Clinical Laboratory; Chinese People's Liberation Army General Hospital; Beijing China
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Beitsch P, Vicini F, Keisch M, Goyal S, Khan A, Lyden M, Sha C, Haffty B. The American Society of Breast Surgery MammoSite Registry: Factors Associated with Optimal Long-term Cosmetic Results. Int J Radiat Oncol Biol Phys 2011. [DOI: 10.1016/j.ijrobp.2011.06.426] [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: 10/16/2022]
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Sha C, Xie H, Yang Y. [Microsurgical treatment of apical region by combined orbital pterygoid approach]. Zhonghua Wai Ke Za Zhi 2001; 39:855-7. [PMID: 11930741] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
Abstract
OBJECTIVE To study microsurgical treatment of orbital apical region tumor by combined orbital pterygoid approach. METHOD In 21 cases, manifestations and surgical methods were analyzed retrospectively. The surgical approach and procedure were discussed. RESULTS All the 21 cases were treated by combined orbital pterygoid approach. The tumors were removed completely in 18 cases, and partially resected in 3. There was no death. CONCLUSIONS This kind of mass is difficult to explore by either transorbital or transcranial approach because of its position. Combined orbital pterygoid approach provides better access and exploration. Appropriate surgical approach, hemostasis and gentle microsurgical manipulation are the key to reducing postoperative complications.
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Affiliation(s)
- C Sha
- Department of Neurosurgery, Beijing Hospital, Beijing 100730, China
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14
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Yang Y, Liu S, Jiang H, Sha C, Yuan Q. [Transoral microsurgical treatment of craniocervical malformation]. Zhonghua Wai Ke Za Zhi 2000; 38:114-5. [PMID: 11832004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/23/2023]
Abstract
OBJECTIVE To discuss transoral microcervical treatment of 16 patients with craniocervical malformation. METHODS Perioperative treatment including antibiotics, tracheotomy, intravenous nutrition was used in 16 patients. RESULTS Eight patients had basilar impressions, 3 chronic atlantoaxial dislocation and 2 odontoid fracture, 2 lower clivus chordoma, and 1 granuloma in the ventral part of the medulla oblongata. Three patients received bone graft. Follow-up for 6 - 36 months showed that 14 patients resumed normal life but 1 died. CONCLUSIONS Pre-craniocervical malformation can be treated by transoral approach microsurgically. Understanding microanatomy of this approach can reduce postoperative morbidity and complications. Perioperative treatment can prevent incision infection. Prevention of intraoperative CSF leakage must be emphasized.Bone graft can make craniocervical spine stable.
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Affiliation(s)
- Y Yang
- Department of Neurosurgery, Beijing Hospital, Beijing 100730, China
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15
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Zhang J, Yu D, Sha C, Xi X, Peng W, Tang W, Chen Y. Studies on biosensor to determine diacetyl. Chin J Biotechnol 1999; 15:183-8. [PMID: 10935166] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/15/2023]
Abstract
We studied the purification of diacetyl reductase, the preparation of a biosensor, and its performance. With diacetyl reductase and reduced coenzyme I (NADH) co-immobilized as working membrane, NAD+/NADH produced in the course of diacetyl reduction was connected with Fe2+/Fe to build a biosensor. The biosensor could be used to determine diacetyl concentration within the range from 0.1 microgram/mL to 0.5 microgram/mL and the response time was less than two minutes, and its performance was stable within 9 days. The experiments showed that typical metal ions and organics in nominal concentration did not affect the performance of the biosensor, meanwhile, the interference of dissolved oxygen on the performance of biosensor and regeneration of coenzyme I (NADH) were solved to some extent.
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Affiliation(s)
- J Zhang
- Institute of Applied Microbiology, Heilongjiang Academy of Science, Harbin, China
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