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https://www.readbyqxmd.com/read/29792868/ah6809-decreases-production-of-inflammatory-mediators-by-pge-2-ep2-camp-signaling-pathway-in-an-experimentally-induced-pure-cerebral-concussion-in-rats
#1
Ping Li, Hongyan Jiang, Haiying Wu, Deye Wu, Hengxi Li, Jianyun Yu, Jianghua Lai
Increasing evidence suggests that PGE2 metabolic pathway is involved in pathological changes of the secondary brain injury after traumatic brain injury. However, the underlying mechanisms, in particular, the correlation between various key enzymes and the brain injury, has remained to be fully explored. More specifically, it remains to be ascertained whether AH6809 (an EP2 receptor antagonist) would interfere with the downstream of the PGE2 , regulate the inflammatory mediators and improve neuronal damage in the hippocampus by PGE2 - EP2 - cAMP signaling pathway...
May 21, 2018: Brain Research
https://www.readbyqxmd.com/read/29790976/cancer-dissemination-hydrocephalus-and-survival-after-cerebral-ventricular-entry-during-high-grade-glioma-surgery-a-meta-analysis
#2
Akshitkumar M Mistry, Patrick D Kelly, Reid C Thompson, Lola B Chambless
BACKGROUND: The consequences of ventricular entry during resection of high-grade gliomas (HGG) are uncertain and often not detectable clinically. OBJECTIVE: To reveal odds of tumor dissemination, hydrocephalus, and mortality in adult patients who had ventricular entry during surgical resection of HGG. METHODS: Titles and abstracts of published journals in the NCBI/NLM PubMed and OVID EMBASE databases were searched without language restriction and systematically screened...
May 22, 2018: Neurosurgery
https://www.readbyqxmd.com/read/29790725/the-utilization-of-fluorescein-in-brain-tumor-surgery-a-systematic-review
#3
Claudio Cavallo, Camilla De Laurentis, Ignazio G Vetrano, Jacopo Falco, Morgan Broggi, Marco Schiariti, Paolo Ferroli, Francesco Acerbi
INTRODUCTION: Sodium Fluorescein (SF) is a green, water-soluble dye with the capacity to accumulate in cerebral areas as a result of damaged blood-brain barrier (BBB); this property allows SF to concentrate specifically at the tumor site of various types of brain neoplasms, making the tumor tissue more clearly visible. EVIDENCE ACQUISITION: A literature search (1947-2018) was conducted with the keywords "fluorescein neurosurgery", "YELLOW neurosurgery", "fluorescein brain tumor", "YELLOW brain tumor"...
May 22, 2018: Journal of Neurosurgical Sciences
https://www.readbyqxmd.com/read/29790314/superselective-intraarterial-cerebral-infusion-of-cetuximab-with-blood-brain-barrier-disruption-combined-with-stupp-protocol-for-newly-diagnosed-glioblastoma
#4
Kay O Kulason, Julia R Schneider, Shamik Chakraborty, Christopher G Filippi, Bidyut Pramanik, Tamika Wong, Sherese Fralin, Karissa Tan, Ashley Ray, Rachel A Alter, Rafael Ortiz, Alexis Demopoulos, David J Langer, John A Boockvar
We describe the first case of a novel treatment for a newly diagnosed glioblastoma (GBM) using superselective intraarterial cerebral infusion (SIACI) of cetuximab after osmotic disruption of the blood-brain barrier (BBB) with mannitol. A 51year-old female underwent craniotomy for removal of a right frontal GBM. Pathology confirmed EGFR amplification, and she underwent three treatments of SIACI of cetuximab to the tumor site. The first treatment was given within a week of starting standard of care chemoradiation (Stupp protocol), which is a combination of radiation treatment (2 Gy per/ day x 30 days, total of 60 Gy) and oral temozolomide (75 mg/m2 )...
May 2018: Journal of Experimental Therapeutics & Oncology
https://www.readbyqxmd.com/read/29789639/fludarabine-and-neurotoxicity-in-engineered-t-cell-therapy
#5
Kate L Lowe, Crystal L Mackall, Elliot Norry, Rafael Amado, Bent K Jakobsen, Gwendolyn Binder
Adoptive T-cell therapy, incorporating engineered T cell receptors (TCRs) or chimeric antigen receptors (CARs), target tumor antigens with high affinity and specificity. To increase the potency of adoptively transferred T cells, patients are conditioned with lymphodepleting chemotherapy regimens prior to adoptive T-cell transfer (ACT), and data suggest that fludarabine is an important component of an effective regimen. In a recent clinical trial using CAR-T cells engineered to target the CD19 B-cell antigen to treat acute lymphoblastic leukemia, JCAR-015 (NCT02535364), two patient deaths due to cerebral edema led to trial suspension...
May 7, 2018: Gene Therapy
https://www.readbyqxmd.com/read/29789530/efficient-blood-brain-barrier-opening-in-primates-with-neuronavigation-guided-ultrasound-and-real-time-acoustic-mapping
#6
Shih-Ying Wu, Christian Aurup, Carlos Sierra Sanchez, Julien Grondin, Wenlan Zheng, Hermes Kamimura, Vincent P Ferrera, Elisa E Konofagou
Brain diseases including neurological disorders and tumors remain under treated due to the challenge to access the brain, and blood-brain barrier (BBB) restricting drug delivery which, also profoundly limits the development of pharmacological treatment. Focused ultrasound (FUS) with microbubbles is the sole method to open the BBB noninvasively, locally, and transiently and facilitate drug delivery, while translation to the clinic is challenging due to long procedure, targeting limitations, or invasiveness of current systems...
May 22, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29789115/hints-on-diagnosing-and-treating-headache
#7
Arne May
BACKGROUND: Headache, like dizziness, is one of the more common presenting complaints in outpatient care and in the emergency room. More than 200 varieties of headache have been described, and the false impression may arise that the diagnosis and treatment of these syndromes is a highly challenging task. METHODS: This review is based on pertinent articles retrieved by a selective search in PubMed. RESULTS: In primary headache, the headache is not a symptom but a disease in its own right...
April 27, 2018: Deutsches Ärzteblatt International
https://www.readbyqxmd.com/read/29788497/a-study-of-the-focal-adhesion-kinase-inhibitor-gsk2256098-in-patients-with-recurrent-glioblastoma-with-evaluation-of-tumor-penetration-of-11c-gsk2256098
#8
Nicholas F Brown, Matthew Williams, Hendrik-Tobias Arkenau, Ronald A Fleming, Jerry Tolson, Li Yan, Jianping Zhang, Lisa Swartz, Rajendra Singh, Kurt R Auger, Laurie Lenox, David Cox, Yvonne Lewis, Christophe Plisson, Graham Searle, Azeem Saleem, Sarah Blagden, Paul Mulholland
Background: GSK2256098 is a novel oral focal adhesion kinase inhibitor. Preclinical studies demonstrate growth inhibition in glioblastoma cell lines. However, rodent studies indicate limited blood-brain barrier penetration. In this expansion cohort within a phase I study, the safety, tolerability, pharmacokinetics and clinical activity of GSK2256098 were evaluated in patients with recurrent glioblastoma. Biodistribution and kinetics of [11C]GSK2256098 were assessed in a sub-study using positron-emission tomography (PET)...
May 17, 2018: Neuro-oncology
https://www.readbyqxmd.com/read/29781194/paraneoplastic-autoimmune-encephalitis-associated-with-pleomorphic-lung-carcinoma-an-autopsy-case-report
#9
Takashi Ando, Yoji Goto, Kazuo Mano, Fumio Nomura, Masako Kurashige, Masafumi Ito, Maya Mimuro, Yasushi Iwasaki, Masahisa Katsuno, Mari Yoshida
A 64-year-old man was admitted with acute onset disturbed consciousness. Cerebrospinal fluid analysis revealed pleocytosis and elevated protein, with negative cultures and PCR. Serum antibodies for autoimmune encephalitis were also negative. Brain magnetic resonance imaging (MRI) was unremarkable, but whole-body CT scan showed a tumor in the left lower lung lobe. Bronchial brush cytology demonstrated clusters of malignant cells, and 18 F-fluorodeoxyglucose positron emission tomography showed multiple lesions and increased uptake in the lung tumor...
May 20, 2018: Neuropathology: Official Journal of the Japanese Society of Neuropathology
https://www.readbyqxmd.com/read/29780229/long-term-follow-up-of-motor-function-deterioration-following-microsurgical-resection-of-middle-third-parasagittal-and-falx-meningioma
#10
Ashraf Ahmad Elzarief, Mohamed Fouad Ibrahim
Background: Incidence of parasagittal meningioma varies in literature; it ranges from 16.8% to 25.6% of intracranial meningioma. Parafalcine meningioma accounts for about 8.5% of intracranial meningioma. Based on their relation to the superior Sagittal sinus and falx, these tumors had been classified into 3 groups; anterior third located between crista galli and coronal suture, middle third located between coronal and lambdoid sutures, and posterior third located posterior to lambdoid suture...
2018: The Egyptian journal of neurology, psychiatry and neurosurgery
https://www.readbyqxmd.com/read/29777731/tumor-necrosis-factor-receptor-2-is-required-for-ischemic-preconditioning-mediated-neuroprotection-in-the-hippocampus-following-a-subsequent-longer-transient-cerebral-ischemia
#11
Jae-Chul Lee, Chan Woo Park, Myoung Cheol Shin, Jun Hwi Cho, Hyang-Ah Lee, Young-Myeong Kim, Joon Ha Park, Ji Hyeon Ahn, Jeong Hwi Cho, Hyun-Jin Tae, In Koo Hwang, Tae-Kyeong Lee, Moo-Ho Won, Il Jun Kang
Tumor Necrosis Factor-α (TNF-α) is a proinflammatory cytokine implicated in neuronal damage in response to cerebral ischemia. Ischemic preconditioning (IPC) provides neuroprotection against a subsequent severer or longer transient ischemia by ischemic tolerance. Here, we focused on the role of TNF-α in IPC-mediated neuroprotection against neuronal death following a subsequent longer transient cerebral ischemia (TCI). Gerbils used in this study were randomly assigned to eight groups; sham group, TCI operated group, IPC plus (+) sham group, IPC + TCI operated group, sham + etanercept (an inhibitor of TNF-a) group, TCI + etanercept group, IPC + sham + etanercept group, and IPC + TCI + etanercept group...
May 16, 2018: Neurochemistry International
https://www.readbyqxmd.com/read/29775151/selection-of-endoscopic-or-transcranial-surgery-for-tuberculum-sellae-meningiomas-according-to-specific-anatomical-features-a-retrospective-multicenter-analysis-kosen-002
#12
Doo-Sik Kong, Chang-Ki Hong, Sang Duk Hong, Do-Hyun Nam, Jung-Il Lee, Ho Jun Seol, Jiwoong Oh, Dong Gyu Kim, Yong Hwy Kim
OBJECTIVE The endoscopic endonasal approach (EEA) and the transcranial approach (TCA) are good options for the treatment of tuberculum sellae (TS) meningiomas. The objective of this study was to identify the key anatomical features in TS meningiomas and compare the two surgical approaches. METHODS The authors retrospectively reviewed clinical data in 178 patients with TS meningiomas treated at 3 institutions between January 2010 and July 2016. Patients with tumors encasing the internal carotid artery or anterior cerebral artery or involving the anterior clinoid process or cavernous sinus were excluded...
May 18, 2018: Journal of Neurosurgery
https://www.readbyqxmd.com/read/29773433/-cerebral-and-pulmonary-nocardiosis-to-nocardia-abscessus-in-an-immunocompetent-algerian-patient
#13
D Arrache, H Zait, V Rodriguez-Nava, E Bergeron, T Durand, M Yahiaoui, F Grenouillet, A Amrane, F Chaouche, A Baiod, K Madani, B Hamrioui
Nocardial brain abscess is often occurring in immunocompromised patients. It is uncommon in immunocompetent individuals. Here, the authors describe a case of cerebral and pulmonary nocardiosis mimicking a metastatic tumor in an apparently health 40-year-old Algerian male. The patient presented multiple brain abscess revealed by inaugural epileptic seizure. He was afebrile and presented with left hemiparesis. Staging imaging showed a nodular lung lesion in the apical segment of the right lower lobe. The patient underwent double craniotomy for resection of the lesion...
May 14, 2018: Journal de Mycologie Médicale
https://www.readbyqxmd.com/read/29772805/ethyl-acetate-fraction-from-persimmon-diospyros-kaki-ameliorates-cerebral-neuronal-loss-and-cognitive-deficit-via-the-jnk-akt-pathway-in-tmt-induced-mice
#14
Jong Min Kim, Seon Kyeong Park, Jin Yong Kang, Su Bin Park, Seul Ki Yoo, Hye Ju Han, Chul-Woo Kim, Uk Lee, Sea-Hyun Kim, Ho Jin Heo
This study was conducted to assess the antioxidant capacity and protective effect of the ethyl acetate fraction from persimmon ( Diospyros kaki ) (EFDK) on H₂O₂-induced hippocampal HT22 cells and trimethyltin chloride (TMT)-induced Institute of Cancer Research (ICR) mice. EFDK had high antioxidant activities and neuroprotective effects in HT22 cells. EFDK ameliorated behavioral and memory deficits in Y-maze, passive avoidance and Morris water maze tests. Also, EFDK restored the antioxidant system by regulating malondialdehyde (MDA), superoxide dismutase (SOD) and reduced gluthathione (GSH), and the cholinergic system by controlling the acetylcholine (ACh) level and acetylcholinesterase (AChE) activity and expression...
May 17, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29772362/ventriculocisternal-shunt-redivivus-third-ventricle-cisterna-magna-intradural-shunt-a-technical-note-and-case-report
#15
Ioan Tefan Florian, Cristina Caterina Aldea
OBJECTIVE: To present a hitherto unreported modification of the classic Torkildsen procedure: passing a catheter intracranially, between the third ventricle and cisterna magna. METHODS: We applied our technique to a 56-year-old male who presented to our department for treatment of a pineal region mass. RESULTS: The patient was placed in sitting position and the mass was gross totally removed through a supracerebellar infratentorial approach...
May 14, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29772244/gender-difference-in-the-effect-of-progesterone-on-neonatal-hypoxic-ischemic-brain-injury-in-mouse
#16
Shuyu Dong, Qian Zhang, Delian Kong, Chao Zhou, Jie Zhou, Jingjing Han, Yan Zhou, Guoliang Jin, Xiaodong Hua, Jun Wang, Fang Hua
This study was to investigate the effects of progesterone (PROG) on neonatal hypoxic/ischemic (NHI) brain injury, the differences in effects between genders, and the underlying mechanisms. NHI brain injury was established in both male and female neonatal mice induced by occlusion of the left common carotid artery followed by hypoxia. The mice were treated with PROG or vehicle. Fluoro-Jade B staining (F-JB), long term behavior testing, and brain magnetic resonance image (MRI) were applied to evaluate neuronal death, neurological function, and brain damage...
May 14, 2018: Experimental Neurology
https://www.readbyqxmd.com/read/29770486/direct-estimation-of-17-o-mr-images-diesis-for-quantification-of-oxygen-metabolism-in-the-human-brain-with-partial-volume-correction
#17
Dmitry Kurzhunov, Robert Borowiak, Marco Reisert, Ali Caglar Özen, Michael Bock
PURPOSE: To provide a data post-processing method that corrects for partial volume effects (PVE) and fast T2* decay in dynamic 17 O MRI for the mapping of cerebral metabolic rates of oxygen consumption (CMRO2 ). METHODS: CMRO2 is altered in neurodegenerative diseases and tumors and can be measured after 17 O gas inhalation using dynamic 17 O MRI. CMRO2 quantification is difficult because of PVE. To correct for PVE, a direct estimation of the MR images (DIESIS) method is proposed and used in 4 dynamic 17 O MRI data sets of a healthy volunteer acquired on a 3T MRI system...
May 16, 2018: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
https://www.readbyqxmd.com/read/29770250/the-usefulness-of-indocyanine-green-during-surgery-for-hypervascular-posterior-fossa-tumors
#18
Takahiro Shinya, Hideki Nagamine, Ken-Ichi Sugawara, Shogo Ishiuchi
Background: Cerebral hemangioblastomas are benign tumors with abundant blood flow that occur mainly in the posterior fossa. Tumor removal en bloc is important in surgical treatment because of the risk of bleeding; however, it is actually rather difficult in practice. Therefore, we propose a surgical strategy for visualizing hypervascular tumors of the posterior fossa utilizing indocyanine green (ICG). Case Description: Case 1 involved a 48-year-old male with a history of von Hippel-Lindau (VHL) disease...
2018: Surgical Neurology International
https://www.readbyqxmd.com/read/29765819/complications-in-salvage-surgery-for-nasal-and-paranasal-malignant-tumors-involving-the-skull-base
#19
Masanori Teshima, Hirotaka Shinomiya, Naoki Otsuki, Hidehito Kimura, Masaaki Taniguchi, Kazunobu Hashikawa, Eiji Kohmura, Ken-Ichi Nibu
Objective  Nasal and paranasal malignant tumors invading the skull base are rare and poorly studied. We evaluated postoperative complications in patients undergoing salvage surgery for such tumors. Design  Retrospective study. Setting  Kobe University Hospital. Participants  Among 48 patients who underwent surgery for tumors involving the skull base between 1993 and 2015, 21 patients had squamous cell carcinoma, 13 had olfactory neuroblastoma, 5 had adenocarcinoma, 2 had sarcoma, 2 had adenoid cystic carcinoma, and 1 each had malignant melanoma, poorly differentiated carcinoma, undifferentiated carcinoma, myoepithelial carcinoma, and malignant peripheral nerve sheath tumor...
June 2018: Journal of Neurological Surgery. Part B, Skull Base
https://www.readbyqxmd.com/read/29765562/a-myriad-of-roles-of-mir-25-in-health-and-disease
#20
REVIEW
Márta Sárközy, Zsuzsanna Kahán, Tamás Csont
Small non-coding RNAs including microRNAs (miRNAs) have been recently recognized as important regulators of gene expression. MicroRNAs play myriads of roles in physiological processes as well as in the pathogenesis of a number of diseases by translational repression or mRNA destabilization of numerous target genes. The miR-106b-25 cluster is highly conserved in vertebrates and consists of three members including miR-106b, miR-93 and miR-25. MiR-106b and miR-93 share the same seed sequences; however, miR-25 has only a similar seed sequence resulting in different predicted target mRNAs...
April 20, 2018: Oncotarget
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