Results 21 to 30 of about 13,685 (188)

The miR-139-5p regulates proliferation of supratentorial paediatric low-grade gliomas by targeting the PI3K/AKT/mTORC1 signalling [PDF]

open access: yes, 2018
Paediatric low-grade gliomas (pLGGs) are a heterogeneous group of brain tumours associated with a high overall survival: however, they are prone to recur and supratentorial lesions are difficult to resect, being associated with high percentage of disease
Antonelli, Manila   +19 more
core   +1 more source

Three-Dimensional Pseudo-Continuous Arterial Spin Labeling Parameters Distinguish Pediatric Medulloblastoma and Pilocytic Astrocytoma

open access: yesFrontiers in Pediatrics, 2021
Introduction: Arterial Spin Labeling (ASL), a perfusion assessment without using gadolinium-based contrast agents, is outstandingly advantageous for pediatric patients. The differentiation of medulloblastomas from pilocytic astrocytomas in children plays
Nguyen Minh Duc   +2 more
doaj   +1 more source

Pilocytic Astrocytoma Arising in Ovarian Mature Cystic Teratoma: An Unusual Neuroectodermal Malignant Transformation Occurring in Pregnant Female [PDF]

open access: yesJournal of Clinical and Diagnostic Research, 2023
Mature cystic teratomas are usually benign, however malignant transformation occurs rarely. It is identified in only 0.17-2% of cases. Malignant cells can arise from cell of any type, but most common malignant transformation found to be squamous cell ...
Kalaivani Amitkumar   +4 more
doaj   +1 more source

Concurrent MEK targeted therapy prevents MAPK pathway reactivation during BRAFV600E targeted inhibition in a novel syngeneic murine glioma model. [PDF]

open access: yes, 2016
Inhibitors of BRAFV600E kinase are currently under investigations in preclinical and clinical studies involving BRAFV600E glioma. Studies demonstrated clinical response to such individualized therapy in the majority of patients whereas in some patients ...
Berger, Mitchel S   +12 more
core   +1 more source

Intraorbital ancient pilocytic astrocytoma of the optic nerve in neurofibromatosis type 1 patient presenting with sudden ocular pain

open access: yesSAGE Open Medical Case Reports, 2018
Optic nerve pilocytic astrocytoma is an uncommon but well-known entity; however, intraorbital ancient pilocytic astrocytoma of the optic nerve is extremely rarely reported.
Haesu Lee Motoyama   +4 more
doaj   +1 more source

Molecular analysis of pediatric brain tumors identifies microRNAs in pilocytic astrocytomas that target the MAPK and NF-kappa B pathways [PDF]

open access: yes, 2015
RT-qPCR confirms (a) up-regulation of miR-34a, miR-146a, miR-542-3p and miR-503 in pilocytic astrocytomas. (b) low expression of miR-124*, miR-129 and miR-129* in pilocytic astrocytomas.
A Freund   +51 more
core   +2 more sources

Transcriptional profiles of pilocytic astrocytoma are related to their three different locations, but not to radiological tumor features [PDF]

open access: yes, 2015
List of genes differentiating between pilocytic astrocytomas by different clinical features (DOCX 117 ...
Aleksandra Pfeifer   +6 more
core   +4 more sources

Expression of P53 and Ki-67 in Different Grades of Astrocytomas [PDF]

open access: yesInternational Journal of Medical Arts, 2022
Background: Astrocytomas are considered the most prevalent central nervous system [CNS] tumors. Diffuse astrocytomas are evaluated by a three-tiered system [II, III, and IV] according to the 2007 WHO classification. The WHO grading scheme is based on the
Rania Rifat Abdel-Maqsoud Mohamed   +1 more
doaj   +1 more source

Molecularly defined diffuse leptomeningeal glioneuronal tumor (DLGNT) comprises two subgroups with distinct clinical and genetic features [PDF]

open access: yes, 2018
Diffuse leptomeningeal glioneuronal tumors (DLGNT) represent rare CNS neoplasms which have been included in the 2016 update of the WHO classification. The wide spectrum of histopathological and radiological features can make this enigmatic tumor entity ...
Brandner, Sebastian   +34 more
core   +1 more source

Pathological perspectives in pilocytic astrocytomas: Extent of resection as the sole critical factor for recurrence-free survival, and the challenge of evaluating conclusions derived from limited data

open access: yesFree Neuropathology, 2023
Introduction: Pilocytic astrocytoma (PA) is one of the most common primary intracranial neoplasms in childhood with an overall favorable prognosis. Despite decades of experience, there are still diagnostic and treatment challenges and unresolved issues ...
Ibrahim Kulac   +6 more
doaj   +3 more sources

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