Laser application in neurosurgery.

Conclusion: Despite controversy over the use of lasers for treatment, the surgical application of lasers for minimally invasive procedures shows promising results and merits further investigation. Laser-based microscopy imaging devices have been developed and miniaturized to be used intraoperatively for rapid pathological diagnosis. The multitude of ways that lasers are used in neurosurgery and in related neuroclinical situations is a testament to the technological advancements and practicality of laser science. PMID: 29204309 [PubMed]
Source: Surgical Neurology International - Category: Neurosurgery Tags: Surg Neurol Int Source Type: research

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This study shows that CA are released from periventricular and subpial regions to the cerebrospinal fluid and are present in the cervical lymph nodes, into which cerebrospinal fluid drains through the meningeal lymphatic system. We also show that CA can be phagocytosed by macrophages. We conclude that CA can act as containers that remove waste products from the brain and may be involved in a mechanism that cleans the brain. Moreover, we postulate that CA may contribute in some autoimmune brain diseases, exporting brain substances that interact with the immune system, and hypothesize that CA may contain brain markers that m...
Source: Fight Aging! - Category: Research Authors: Tags: Newsletters Source Type: blogs
Conclusions: Both WBRT and SRS are appropriate for the treatment of BM in patients with ALK-rearranged NSCLC. The incidence of BM in the hippocampus and peri-hippocampus region is low in our radiological data. Nearly 80% of patients with metachronous BM have oligo-metastatic lesions, indicating that SRS is the preferred therapy while PCI is not indicated.
Source: Journal of Cancer - Category: Cancer & Oncology Authors: Tags: Research Paper Source Type: research
Abstract Glioblastoma (GBM) is the most common and malignant type of primary brain tumor, showing rapid development and resistance to therapies. On average, patients survive 14.6 months after diagnosis and less than 5% survive five years or more. Several pieces of evidence have suggested that the DNA damage signaling and repair activities are directly correlated with GBM phenotype and exhibit opposite functions in cancer establishment and progression. The functions of these pathways appear to present a dual role in tumorigenesis and cancer progression. Activation and/or overexpression of ATRX, ATM and RAD51 genes were exte...
Source: Genetics and Molecular Biology - Category: Genetics & Stem Cells Source Type: research
This article gives an overview of the current results of PET with radiolabelled amino acids in therapy monitoring of standard therapy as well as various innovative approaches in the treatment of patients with cerebral gliomas.Expert opinion: Amino acid PET has proven to be helpful in therapy monitoring of gliomas, the costs are low in relation to the costs of therapy and the clinical benefit, and a widespread clinical use is highly desirable. PMID: 31829748 [PubMed - as supplied by publisher]
Source: Expert Review of Neurotherapeutics - Category: Neurology Tags: Expert Rev Neurother Source Type: research
Contributors : Daniel Picard ; Viktoria Marquardt ; Marc RemkeSeries Type : Expression profiling by high throughput sequencingOrganism : Homo sapiensAberrant oncogenic activation of MYC drives tumorigenesis in the most aggressive subset of medulloblastoma, the most common malignant brain tumor in childhood. Metastatic dissemination at diagnosis and at recurrence is commonly observed in MYC-driven medulloblastomas. Since these tumors display remarkable resistance to standard multimodal therapeutic approaches, epigenetic modulators commonly altered in these tumors are highly promising targets for novel therapeutic approaches...
Source: GEO: Gene Expression Omnibus - Category: Genetics & Stem Cells Tags: Expression profiling by high throughput sequencing Homo sapiens Source Type: research
Conclusions: Raman spectroscopy and imaging have the potential to be used as screening functional assays to detect phosphorylated target proteins and will help researchers to understand the role of phosphorylation in cellular processes and cancer progression. The abnormal and excessive high level of tyrosine phosphorylation in cancer samples compared with normal samples was found in the cancerous human tissue of breasts, small intestines and brain tumours, as well as in the mitochondria and lipid droplets of the glioblastoma U-87 MG cell line. Detailed insights are presented into the intracellular oncogenic metabolic pathw...
Source: Cancers - Category: Cancer & Oncology Authors: Tags: Article Source Type: research
Abstract In recent years, the roles of astrocytes of the central nervous system in brain function and neurological disease have drawn increasing attention. As a member of the N-myc downstream-regulated gene (NDRG) family, NDRG2 is principally expressed in astrocytes of the central nervous system. NDRG2, which is involved in cell proliferation and differentiation, is commonly regarded as a tumor suppressor. In astrocytes, NDRG2 affects the regulation of apoptosis, astrogliosis, blood-brain barrier integrity, and glutamate clearance. Several preclinical studies have revealed that NDRG2 is implicated in the pathogene...
Source: Cellular and Molecular Life Sciences : CMLS - Category: Cytology Authors: Tags: Cell Mol Life Sci Source Type: research
(Northwestern University) A potent drug for glioblastoma can't be used in patients. It can't reach its target because it's blocked by the blood-brain barrier, and the conventional formulation for this drug is toxic to the brain. But now scientists have used a novel technology for opening the blood-brain barrier with an implantable ultrasound, and delivered the powerful drug to the tumor in mice. Scientists also identified why drug is toxic and tested a new formulation not harmful to the brain.
Source: EurekAlert! - Cancer - Category: Cancer & Oncology Source Type: news
ConclusionsOur data suggest that the investigated brain tumors had an intact BBTB, which is impermeable to anticancer drugs, which are dual ABCB1/ABCG2 substrates. Therefore, effective drugs for antitumor treatment should have high passive permeability and lack ABCB1/ABCG2 substrate affinity.Trial registrationEuropean Union Drug Regulating Authorities Clinical Trials Database (EUDRACT), 2011-004189-13. Registered on 23 February 2012,https://www.clinicaltrialsregister.eu/ctr-search/search?query=2011-004189-13.
Source: EJNMMI Research - Category: Radiology Source Type: research
This study highlights the continued need for robust pre-clinical assessment of promising treatment approaches using clinically relevant models.
Source: Cancers - Category: Cancer & Oncology Authors: Tags: Article Source Type: research
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