Diverse Behavior in 18F-Fluorocholine PET/CT of Brain Tumors in Patients With Neurofibromatosis Type 1

We present three cases of NF1 patients referred for 18F-fluorocholine PET/CT because of suspected glioma in the setting of ongoing FUMEGA (Functional and Metabolic Glioma Analysis) trial. One case turned out to be a WHO grade I ganglioglioma; the second was a high grade glioma; and the last one (negative in PET) a probable low-grade glioma.
Source: Clinical Nuclear Medicine - Category: Nuclear Medicine Tags: Interesting Images Source Type: research

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Publication date: Available online 14 September 2019Source: Colloids and Surfaces B: BiointerfacesAuthor(s): Alexandra A.P. Mansur, Anderson J. Caires, Sandhra M. Carvalho, Nadia S.V. Capanema, Isadora C. Carvalho, Herman S. MansurAbstractGlioblastoma (GBM) is the utmost aggressive and lethal primary brain cancer, which has a poor prognosis and remains virtually incurable. Nanomedicine with emerging disruptive nanotechnology alternatives, including designed supramolecular nanohybrids has excellent potential as multimodal tools against cancer by combining nanomaterials, biomacromolecules, and drugs. Thus, we developed and c...
Source: Colloids and Surfaces B: Biointerfaces - Category: Biochemistry Source Type: research
Authors: Ozaki T, Kinoshita M, Arita H, Kagawa N, Fujimoto Y, Kanemura Y, Sakai M, Watanabe Y, Nakanishi K, Shimosegawa E, Hatazawa J, Kishima H Abstract Brain Tumor Image Analysis (BraTumIA) is a fully automated segmentation tool dedicated to detecting brain tumors imaged by magnetic resonance imaging (MRI). BraTumIA has recently been applied to several clinical investigations; however, the validity of this novel method has not yet been fully examined. The present study was conducted to validate the quality of tumor segmentation with BraTumIA in comparison with results from 11C-methionine positron emission tomogra...
Source: Oncology Letters - Category: Cancer & Oncology Tags: Oncol Lett Source Type: research
Authors: Dong Q, Li Q, Wang M, Hu J, Dai J, Niu L, Yuan G, Pan Y Abstract CD44 is involved in malignant processes including cell motility, tumor growth and angiogenesis. To explore the potential role of CD44 as a prognostic biomarker in low grade gliomas (LGG), the mRNA expression levels of CD44 in tissues from 12 patients with glioma were evaluated by microarray analysis. The mRNA level of CD44 in LGG and glioblastoma multiforme (GBM) were analyzed using datasets downloaded from the publicly available Oncomine database. Reverse transcription-quantitative PCR and western blotting were used to further analyze the CD...
Source: Oncology Letters - Category: Cancer & Oncology Tags: Oncol Lett Source Type: research
Publication date: December 2019Source: Phytochemistry Letters, Volume 34Author(s): Li-Qiu Quan, Huan Liu, Rong-Tao Li, Hong-Mei LiAbstractThree new 3,8-epoxy iridoids, jatamanins V–X (1-3), and three known ones (4-6), were obtained from the roots and rhizomes of Valeriana jatamansi. The structures of 1-3 were determined through their NMR and high-resolution mass spectroscopic analysis. Among them, compounds 1 and 2 were a pair of C-4 diastereomers. Additionally, all compounds were evaluated for their cytotoxic effects against glioma stem cells.Graphical abstract
Source: Phytochemistry Letters - Category: Chemistry Source Type: research
Publication date: October 2019Source: Biomedicine &Pharmacotherapy, Volume 118Author(s): Zhong-Yan Zhou, Wai-Rong Zhao, Jing Zhang, Xin-Lin Chen, Jing-Yi TangAbstractSodium tanshinone IIA sulfonate (STS) is a water-soluble derivate of tanshinone IIA (Tan IIA) which is an active lipophilic constitute of Chinese Materia Medica Salvia miltiorrhiza Bge. (Danshen). STS presents multiple pharmacological activities, including anti-oxidant, anti-inflammation and anti-apoptosis, and has been approved for treatment of cardiovascular diseases by China State Food and Drug Administration (CFDA). In this review, we comprehensively s...
Source: Biomedicine and Pharmacotherapy - Category: Drugs & Pharmacology Source Type: research
Publication date: September 2019Source: Chinese Journal of Natural Medicines, Volume 17, Issue 9Author(s): Cai-Feng DING, Zhi DAI, Hao-Fei YU, Xu-Dong ZHAO, Xiao-Dong LUOAbstractSeven new isoquinoline alkaloids, 9-(2′-formyl-5′, 6′-dimethoxyphenoxy)-1, 2, 3, 10-tetramethoxy dehydroaporphine (1), 9-(2′-formyl-5′, 6′-dimethoxyphenoxy)-1, 2, 3, 10-tetramethoxy oxoaporphine (2), 3-methoxy-2′-formyl oxohernandalin (3), (−)-9-(2′-methoxycarbonyl-5′, 6′-dimethoxyphenoxy)-1, 2, 3, 10-tetramethoxy aporphine (4), (−)-2′-methoxycarbonyl thaliadin (5), (&min...
Source: Chinese Journal of Natural Medicines - Category: Complementary Medicine Source Type: research
Conclusion In patients with newly diagnosed glioma, a combination of MRI and 18F-FLT-PET detects additional tumoral tissue and this may lead to a more complete surgical resection. Also, the addition of a negative PET to a negative MRI increases the negative predictive value. However, 18F-FLT still underestimated the margins of the lesion and did not correlate with histopathological features.
Source: Nuclear Medicine Communications - Category: Nuclear Medicine Tags: Original Articles Source Type: research
We report a case of a sporadic Left optic pathway (nerve/chiasm) glioma treated upfront with Bevacizumab and Vinblastine resulting in significant and sustained recovery of vision. Our patient presented to us with a rapidly increasing lesion arising from the left intracranial optic nerve / chiasm with significant mass effect and peripheral contrast enhancement on serial follow up imaging (MRI). Ophthalmological exam revealed VA of 6/150 (was 6/12) and a 2+ afferent pupillary defect in the left eye. Biopsy of the lesion revealed Pilocytic astrocytoma (WHO Grade-I) which was negative for BRAF (V600E mutation and fusion defect...
Source: Neuro-Oncology - Category: Cancer & Oncology Authors: Tags: CLINICAL TRIALS AND OUTCOMES - PEDIATRICS Source Type: research
Purpose Vinblastine monotherapy has shown promising activity and a low-toxicity profile in patients with pediatric low-grade glioma (PLGG) who experienced treatment failure after initial treatment with chemotherapy and/or radiation. The aim of this study was to assess the activity of vinblastine in therapy-naïve children. Patients and Methods Patients
Source: Journal of Clinical Oncology - Category: Cancer & Oncology Authors: Tags: Brain Tumors, Chemotherapy, CNS Tumors Pediatric Oncology Source Type: research
Although optic pathway gliomas are the most common brain tumors associated with neurofibromatosis type 1 (NF1), extra‐optic gliomas occur and may behave more aggressively with outcomes that differ by age. A retrospective case‐control study was designed to describe the clinical course of adult NF1 patients with progressive extra‐optic pilocytic astrocytomas (PAs) and compare to a pediatric cohort. Data for patients treated at the Johns Hopkins Comprehensive Neurofibromatosis Center from 2003 to 2013 were reviewed to identify cases (adults, age>18) and controls (pediatric, age
Source: American Journal of Medical Genetics Part A - Category: Genetics & Stem Cells Authors: Tags: Original Article Source Type: research
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