Hematoporphyrin derivative photocytotoxicity of human glioblastoma in cell culture.

Abstract:

:The parameters of hematoporphyrin-derivative (HpD) photocytotoxicity of human glioma cells in cell culture were studied to determine the optimum wavelength and power density of light, to investigate the influence of tissue oxygenation, and to evaluate the role of singlet oxygen and free radicals in producing cell death. Cell survival curves demonstrated a relative killing efficiency of 12:1 for violet compared to red light. Eighty joules of red light were required to produce 100% cell kill at an HpD concentration of 10 micrograms/ml, a level of HpD that has been quantitated in biopsies from patients receiving HpD photoradiation therapy. No difference in cellular killing efficiency was observed for power densities of red light varying from 10 to 100 mW/cm2. Cytotoxicity was directly related to O2 tension from 12 to 490 torr with a slight but consistent increase in cell kill at O2 tensions from 7 to 12 torr. Cytotoxicity was effectively quenched by beta-carotene, whereas mannitol had no effect, indicating that cytotoxicity is probably mediated via a mechanism involving singlet oxygen. This information may serve as a basis for more effective application of HpD photoradiation therapy and for designing protocols to study the efficacy of such therapy.

journal_name

Neurosurgery

journal_title

Neurosurgery

authors

Wharen RE Jr,So S,Anderson RE,Laws ER Jr

doi

10.1227/00006123-198610000-00002

subject

Has Abstract

pub_date

1986-10-01 00:00:00

pages

495-501

issue

4

eissn

0148-396X

issn

1524-4040

journal_volume

19

pub_type

杂志文章
  • Intraoperative optical spectroscopy identifies infiltrating glioma margins with high sensitivity.

    abstract:OBJECTIVE:Adult gliomas have indistinct borders. As the ratio of neoplastic cells to normal cells becomes lower, the ability to detect these cells diminishes. We describe a device designed to augment intraoperative identification of both solid tumor and infiltrating tumor margins. METHODS:A novel, intraoperative, opti...

    journal_title:Neurosurgery

    pub_type: 临床试验,杂志文章

    doi:10.1227/01.neu.000176855.39826.2d

    authors: Toms SA,Lin WC,Weil RJ,Johnson MD,Jansen ED,Mahadevan-Jansen A

    更新日期:2005-10-01 00:00:00

  • Validation of a new technique for measurement of intracranial pressure with a scintillation counter.

    abstract::Intracranial pressure sensors and subdural and subgaleal sensing tambours were used to measure the pressure difference between the intracranial and subgaleal spaces in two monkeys. The pressure differential was transmitted to fluid bathing a piston, to which an isotope source (145Pm) was attached. The radiation signal...

    journal_title:Neurosurgery

    pub_type: 杂志文章

    doi:10.1227/00006123-197801000-00007

    authors: Meyer GA,Millis RM,Budzinski J

    更新日期:1978-01-01 00:00:00

  • Alterations in Cortical Thickness and Subcortical Volume are Associated With Neurological Symptoms and Neck Pain in Patients With Cervical Spondylosis.

    abstract:BACKGROUND:Advanced cervical spondylosis (CS) can cause structural damage to the spinal cord resulting in long-term neurological impairment including neck pain and motor weakness. We hypothesized long-term structural reorganization within the brain in patients with CS. OBJECTIVE:To explore the associations between cor...

    journal_title:Neurosurgery

    pub_type: 杂志文章

    doi:10.1093/neuros/nyy066

    authors: Woodworth DC,Holly LT,Mayer EA,Salamon N,Ellingson BM

    更新日期:2019-03-01 00:00:00

  • Carotid arteriotomy closure using a vascular clip system.

    abstract:PURPOSE:To compare a newly released vascular clip system (Vascular Clip-applier System; Auto Suture Company, Norwalk, CT) designed for sutureless vessel closures and anastomoses with standard suture closure of carotid arteriotomies after carotid endarterectomies. PATIENTS AND METHODS:Sixteen consecutive patients with ...

    journal_title:Neurosurgery

    pub_type: 临床试验,杂志文章,随机对照试验

    doi:10.1097/00006123-199803000-00024

    authors: Findlay JM,Megyesi JF

    更新日期:1998-03-01 00:00:00

  • In-hospital mortality and morbidity after surgical treatment of unruptured intracranial aneurysms in the United States, 1996-2000: the effect of hospital and surgeon volume.

    abstract:OBJECTIVE:We sought to determine the risk of adverse outcome after contemporary surgical treatment of patients with unruptured intracranial aneurysms in the United States. Patient, surgeon, and hospital characteristics were tested as potential outcome predictors, with particular attention to the surgeon's and hospital'...

    journal_title:Neurosurgery

    pub_type: 杂志文章

    doi:

    authors: Barker FG 2nd,Amin-Hanjani S,Butler WE,Ogilvy CS,Carter BS

    更新日期:2003-05-01 00:00:00

  • Morphometric analysis of the foramen magnum: an anatomic study.

    abstract:OBJECTIVE:To further elucidate the importance of anatomic variations in morphology of the foramen magnum and associated clinical implications, we conducted a morphometric study. METHODS:Seventy-two dry skulls were used for this study. Digital images were obtained of the foramen magnum from an inferior view. These imag...

    journal_title:Neurosurgery

    pub_type: 杂志文章

    doi:10.1227/01.NEU.0000363407.78399.BA

    authors: Tubbs RS,Griessenauer CJ,Loukas M,Shoja MM,Cohen-Gadol AA

    更新日期:2010-02-01 00:00:00

  • Anterior cervical microforaminotomy for spondylotic cervical myelopathy: part 2.

    abstract:OBJECTIVE:Anterior microforaminotomy for spondylotic cervical myelopathy is reported with surgical results. METHODS:A retrospective study was performed for 40 patients with spondylotic cervical myelopathy who had been surgically treated with anterior microforaminotomy at the University of Pittsburgh between April 1994...

    journal_title:Neurosurgery

    pub_type: 杂志文章

    doi:

    authors: Jho HD,Kim MH,Kim WK

    更新日期:2002-11-01 00:00:00

  • Resolution of hemifacial spasm after surgical obliteration of a tentorial arteriovenous fistula: case report.

    abstract:OBJECTIVE AND IMPORTANCE:We describe a patient with a tentorial dural arteriovenous fistula who presented with ipsilateral hemifacial spasm. CLINICAL PRESENTATION:A 50-year-old man sought treatment for left facial twitching that worsened over 6 months. Magnetic resonance imaging and catheter angiography demonstrated a...

    journal_title:Neurosurgery

    pub_type: 杂志文章

    doi:10.1227/01.neu.0000192386.89105.82

    authors: Deshmukh VR,Maughan PH,Spetzler RF

    更新日期:2006-01-01 00:00:00

  • Virtual reality cerebral aneurysm clipping simulation with real-time haptic feedback.

    abstract:BACKGROUND:With the decrease in the number of cerebral aneurysms treated surgically and the increase of complexity of those treated surgically, there is a need for simulation-based tools to teach future neurosurgeons the operative techniques of aneurysm clipping. OBJECTIVE:To develop and evaluate the usefulness of a n...

    journal_title:Neurosurgery

    pub_type: 杂志文章

    doi:10.1227/NEU.0000000000000583

    authors: Alaraj A,Luciano CJ,Bailey DP,Elsenousi A,Roitberg BZ,Bernardo A,Banerjee PP,Charbel FT

    更新日期:2015-03-01 00:00:00

  • Perinidal hypervascular network on immediate postoperative angiogram after removal of large arteriovenous malformations located distant from the arterial circle of Willis.

    abstract::Unexplained intraoperative or postoperative hemorrhage occurs in certain cases in the surgery of large arteriovenous malformations (AVMs), which are defined as those with maximal diameter of the nidus larger than 5 cm. Immediate postoperative angiograms were evaluated with reference to whether such hemorrhage could be...

    journal_title:Neurosurgery

    pub_type: 杂志文章

    doi:10.1227/00006123-199309000-00008

    authors: Takemae T,Kobayashi S,Sugita K

    更新日期:1993-09-01 00:00:00

  • Targeting the alpha 1 subunit of the sodium pump to combat glioblastoma cells.

    abstract:OBJECTIVE:Ion transporters play pivotal roles in cancer cell migration in general and in glioblastomas (GBMs) in particular. However, the specific role of Na/K-ATPase (the sodium pump) and, in particular, its alpha1 subunit, has remained unexplored in GBMs. MATERIALS AND METHODS:The expression of Na+/K+ -ATPase alpha1...

    journal_title:Neurosurgery

    pub_type: 杂志文章

    doi:10.1227/01.NEU.0000311080.43024.0E

    authors: Lefranc F,Mijatovic T,Kondo Y,Sauvage S,Roland I,Debeir O,Krstic D,Vasic V,Gailly P,Kondo S,Blanco G,Kiss R

    更新日期:2008-01-01 00:00:00

  • Spontaneous pneumocephalus in the posterior fossa in a patient with a ventriculoperitoneal shunt: case report.

    abstract:OBJECTIVE AND IMPORTANCE:A unique case of spontaneous pneumocephalus is described. It appeared a few years after the uneventful introduction of a cerebrospinal fluid shunt and was probably attributable to a defect of the posterior mastoid plate. CLINICAL PRESENTATION:A 65-year-old man presented with a subacute onset o...

    journal_title:Neurosurgery

    pub_type: 杂志文章

    doi:10.1227/00006123-200004000-00048

    authors: Kanner AA,Nageris BI,Chaimoff M,Rappaport ZH

    更新日期:2000-04-01 00:00:00

  • Myelolipomatous change in an interhemispheric lipoma associated with corpus callosum agenesis: case report.

    abstract:OBJECTIVE:Interhemisperic lipomas are almost always associated with hypogenesis or agenesis of the corpus callosum. These lesions are stable. CLINICAL PRESENTATION:We report a case of an interhemispheric lipoma in a 72-year-old man who had undergone myelolipomatous differentiation. INTERVENTION:Gross total excision o...

    journal_title:Neurosurgery

    pub_type: 杂志文章

    doi:10.1227/01.neu.0000317326.09601.51

    authors: Suri V,Sharma MC,Suri A,Karak AK,Garg A,Sarkar C,Jain D

    更新日期:2008-03-01 00:00:00

  • The Dancing Cord: Inherent Spinal Cord Motion and Its Effect on Cord Dose in Spine Stereotactic Body Radiation Therapy.

    abstract:BACKGROUND:Spinal cord dose limits are critically important for the safe practice of spine stereotactic body radiotherapy (SBRT). However, the effect of inherent spinal cord motion on cord dose in SBRT is unknown. OBJECTIVE:To assess the effects of cord motion on spinal cord dose in SBRT. METHODS:Dynamic balanced fas...

    journal_title:Neurosurgery

    pub_type: 杂志文章

    doi:10.1093/neuros/nyaa202

    authors: Oztek MA,Mayr NA,Mossa-Basha M,Nyflot M,Sponseller PA,Wu W,Hofstetter CP,Saigal R,Bowen SR,Hippe DS,Yuh WTC,Stewart RD,Lo SS

    更新日期:2020-06-04 00:00:00

  • Sacroplasty for cancer-associated insufficiency fractures.

    abstract:BACKGROUND:Tumor-associated sacral insufficiency fractures (SIF) present a significant clinical challenge. As survival increases for many malignancies, sacral fractures associated with metastases, sacral or extended pelvic radiation, and paraneoplastic osteoporosis are increasingly common and yet remain difficult to tr...

    journal_title:Neurosurgery

    pub_type: 杂志文章

    doi:10.1227/NEU.0000000000000658

    authors: Moussazadeh N,Laufer I,Werner T,Krol G,Boland P,Bilsky MH,Lis E

    更新日期:2015-04-01 00:00:00

  • Microdiscectomy versus chemonucleolysis.

    abstract::A retrospective analysis of 50 consecutive patients treated with chemonucleolysis and 50 treated with microlumbar discectomy was carried out. Similar clinical criteria for the diagnosis of "virgin" herniated lumbar discs were used. All patients had low back or radicular pain unrelieved by a minimum of 4 weeks of conse...

    journal_title:Neurosurgery

    pub_type: 杂志文章

    doi:10.1227/00006123-198505000-00010

    authors: Maroon JC,Abla A

    更新日期:1985-05-01 00:00:00

  • Intraoperative computed tomography for complex craniocervical operations and spinal tumor resections.

    abstract:OBJECTIVE:To improve intraoperative observation of unexposed anatomic features and to verify surgical correction, a mobile computed tomographic (CT) scanner has been introduced into the operating room. To date, intraoperative CT scanning has been used predominantly for intracranial procedures. We report on the expanded...

    journal_title:Neurosurgery

    pub_type: 杂志文章

    doi:10.1097/00006123-200008000-00019

    authors: Hum B,Feigenbaum F,Cleary K,Henderson FC

    更新日期:2000-08-01 00:00:00

  • Epithelioid ependymoma: a new variant of ependymoma: report of three cases.

    abstract:OBJECTIVE:To describe the pathological features of three very similar and unusual primary central nervous system tumors that are not readily recognized as conventional ependymomas but which, by ultrastructural examination, have an ependymomatous character. METHODS:Three distinctive tumors were found in a review of our...

    journal_title:Neurosurgery

    pub_type: 杂志文章

    doi:10.1227/01.neu.0000079628.55729.12

    authors: Kleinman GM,Zagzag D,Miller DC

    更新日期:2003-09-01 00:00:00

  • The minipterional craniotomy: technical description and anatomic assessment.

    abstract:OBJECTIVE:To describe a modification of the pterional approach (PT), the minipterional craniotomy (MPT), and compare the anatomic exposure provided by these two approaches. METHODS:The anatomic exposure offered by the MPT and PT were compared in eight sides of cadaver heads using a computerized tracking system, a robo...

    journal_title:Neurosurgery

    pub_type: 杂志文章

    doi:10.1227/01.neu.0000303978.11752.45

    authors: Figueiredo EG,Deshmukh P,Nakaji P,Crusius MU,Crawford N,Spetzler RF,Preul MC

    更新日期:2007-11-01 00:00:00

  • Increased cell opening and prolapse of struts of a neuroform stent in curved vasculature: value of angiographic computed tomography: technical case report.

    abstract:OBJECTIVE AND IMPORTANCE:To describe the use of a new imaging tool, angiographic computed tomography, for visualization of cell opening and strut prolapse of a Neuroform 2 stent (Boston Scientific/Target, Fremont, CA) placed in curved vasculature for treatment of a basilar tip aneurysm. CLINICAL PRESENTATION:A 46-year...

    journal_title:Neurosurgery

    pub_type: 杂志文章

    doi:10.1227/01.NEU.0000205287.06739.E1

    authors: Benndorf G,Claus B,Strother CM,Chang L,Klucznik RP

    更新日期:2006-04-01 00:00:00

  • Of Bubbles and Layers: Which Cerebral Cavernous Malformations are Most Difficult to Dissect From Surrounding Eloquent Brain Tissue?

    abstract:BACKGROUND:Cerebral cavernous malformations (CCM) may lead to repetitive intracerebral hemorrhage. In selected cases, a surgical resection is indicated. OBJECTIVE:To identify magnetic resonance imaging (MRI) features of CCM that correlate with the difficulty of dissection and postoperative outcome. METHODS:This study...

    journal_title:Neurosurgery

    pub_type: 杂志文章

    doi:10.1093/neuros/nyx025

    authors: Dammann P,Wrede K,Jabbarli R,Müller O,Mönninghoff C,Forsting M,Sure U

    更新日期:2017-09-01 00:00:00

  • Techniques of posterior C1-C2 stabilization.

    abstract::Instability of the atlantoaxial complex may result from inflammatory, traumatic, congenital, neoplastic, or degenerative disorders and often requires surgical stabilization. Initial dorsal wiring techniques allow safe fixation but require rigid external immobilization and have been associated with high fusion failure ...

    journal_title:Neurosurgery

    pub_type: 杂志文章,评审

    doi:10.1227/01.NEU.0000249220.50085.E4

    authors: Menendez JA,Wright NM

    更新日期:2007-01-01 00:00:00

  • Combination of functional magnetic resonance imaging-guided neuronavigation and intraoperative cortical brain mapping improves targeting of motor cortex stimulation in neuropathic pain.

    abstract:OBJECTIVE:To evaluate, regardless of the clinical results, the contribution of combining functional magnetic resonance imaging (fMRI) with intraoperative cortical brain mapping (iCM) as functional targeting methods for epidural chronic motor cortex stimulation (MCS) in refractory neuropathic pain. METHODS:Eighteen neu...

    journal_title:Neurosurgery

    pub_type: 杂志文章

    doi:10.1227/01.neu.0000333762.38500.ac

    authors: Pirotte B,Voordecker P,Neugroschl C,Baleriaux D,Wikler D,Metens T,Denolin V,Joffroy A,Massager N,Brotchi J,Levivier M

    更新日期:2008-06-01 00:00:00

  • Temporal lobectomy in acute complicated herpes simplex encephalitis: technical case report.

    abstract:OBJECTIVE:Herpes virus encephalitis is a rare, life-threatening complication of therapy in patients with brain tumors. A surgical therapeutic approach may be needed because the infection can be resistant to acyclovir in immunocompromised patients, and complications and long-term sequelae are frequent. CLINICAL PRESENT...

    journal_title:Neurosurgery

    pub_type: 杂志文章

    doi:10.1227/01.neu.0000325885.00033.c3

    authors: Sánchez-Carpintero R,Aguilera S,Idoate M,Bejarano B

    更新日期:2008-05-01 00:00:00

  • Rapid Stretch Injury to Peripheral Nerves: Biomechanical Results.

    abstract:BACKGROUND:Although most adult brachial plexus injuries result from high-speed mechanisms, no laboratory model has been created to mimic rapid-stretch nerve injuries. Understanding the biomechanical response of nerves to rapid stretch is essential to understanding clinical injury patterns and developing models that mim...

    journal_title:Neurosurgery

    pub_type: 杂志文章

    doi:10.1093/neuros/nyy423

    authors: Mahan MA,Yeoh S,Monson K,Light A

    更新日期:2019-07-01 00:00:00

  • Repeat transsphenoidal surgery for the treatment of remaining or recurring pituitary tumors in acromegaly.

    abstract:BACKGROUND:Acromegaly is a disorder characterized by hypersecretion of growth hormone caused by a growth hormone-secreting pituitary adenoma. OBJECTIVE:To evaluate the long-term efficacy and safety of repeat transsphenoidal surgery for persistent or recurrent acromegaly. METHODS:We retrospectively reviewed records fo...

    journal_title:Neurosurgery

    pub_type: 杂志文章

    doi:10.1227/NEU.0b013e3181ec4379

    authors: Yamada S,Fukuhara N,Oyama K,Takeshita A,Takeuchi Y

    更新日期:2010-10-01 00:00:00

  • Sporadic unilateral vestibular schwannoma with islets of meningioma: case report.

    abstract:OBJECTIVE AND IMPORTANCE:Vestibular schwannomas with meningioma islets have been rarely reported in the literature; they have been observed only among patients with neurofibromatosis Type II. We present a case of a sporadic mixed tumor in a patient without neurofibromatosis Type II that was not suspected before surgery...

    journal_title:Neurosurgery

    pub_type: 杂志文章

    doi:10.1097/00006123-200008000-00037

    authors: Lüdemann W,Stan AC,Tatagiba M,Samii M

    更新日期:2000-08-01 00:00:00

  • Impact of changes in intraoperative somatosensory evoked potentials on stroke rates after clipping of intracranial aneurysms.

    abstract:BACKGROUND:Somatosensory evoked potential (SSEP) monitoring is used during intracranial aneurysm surgery to track the effects of anesthesia, surgical manipulation, and temporary clipping. OBJECTIVE:To present the outcomes of 663 consecutive patients (691 cases) treated surgically for intracranial aneurysms who underwe...

    journal_title:Neurosurgery

    pub_type: 杂志文章

    doi:10.1227/NEU.0b013e31823f5cf7

    authors: Wicks RT,Pradilla G,Raza SM,Hadelsberg U,Coon AL,Huang J,Tamargo RJ

    更新日期:2012-05-01 00:00:00

  • Neurosurgical Practice in Transition: A Review.

    abstract::Neurosurgery is experiencing a period of acute change driven by 2 forces: (1) the perception that the healthcare system in the United States is wasteful and that patients are receiving low "value" care, (2) the belief that quality and long-term outcomes can be measured accurately. We believe 3 important shifts will em...

    journal_title:Neurosurgery

    pub_type: 杂志文章,评审

    doi:10.1093/neuros/nyx008

    authors: Kim DH,Dagi TF,Bean JR

    更新日期:2017-04-01 00:00:00

  • Moderate head injury: completing the clinical spectrum of brain trauma.

    abstract::We have divided head injury into three categories based on the Glasgow Coma Scale (GCS) (severe, 3-8; moderate, 9-12; and minor, 13-15). In a previous report, we described significant disability after minor head injury. The present report describes 199 patients with moderate head injury, 159 of whom underwent follow-u...

    journal_title:Neurosurgery

    pub_type: 杂志文章

    doi:10.1227/00006123-198209000-00002

    authors: Rimel RW,Giordani B,Barth JT,Jane JA

    更新日期:1982-09-01 00:00:00