Cerebrospinal fluid (CSF) is a complex fluid filling the ventricular system and surrounding the brain and spinal cord. Although the bulk of CSF is created by the choroid plexus, a significant fraction derives from the interstitial fluid in the brain and spinal cord parenchyma. For this reason, CSF can often be used as a source of pharmacodynamic and prognostic biomarkers to reflect biochemical changes occurring within the brain. For instance, CSF biomarkers can be used to diagnose and track progression of disease as well as understand pharmacokinetic and pharmacodynamic relationships in clinical trials. To facilitate the use of these biomarkers in humans, studies in preclinical species are often valuable. This review summarizes methods for preclinical CSF collection for biomarkers from mice, rats, and nonhuman primates. In addition, dosing directly into CSF is increasingly being used to improve drug levels in the brain. Therefore, this review also summarizes the state of the art in CSF dosing in these preclinical species.
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http://dx.doi.org/10.1016/B978-0-12-804279-3.00004-6 | DOI Listing |
J Neurointerv Surg
January 2025
Department of Neuroradiology, Medical Center - University of Freiburg, Freiburg, Germany
Background: Cerebrospinal fluid (CSF) loss in spontaneous intracranial hypotension (SIH) is accompanied by volume shifts between the intracranial compartments. This study investigated tricompartimental and longitudinal volume shifts after closure of a CSF leak.
Methods: Patients with SIH and suitable pre-therapeutic and post-therapeutic imaging for volumetric analysis were identified from our tertiary care center between 2020 and 2023.
BMJ Case Rep
January 2025
Institute of Neurological Sciences, Prince of Wales Hospital and the University of New South Wales, Randwick, Sydney, New South Wales, Australia
Acute cerebellar ataxia is a clinical syndrome that involves loss of balance and coordination, typically within less than 72 hours. It usually presents in children and rarely affect adults. A woman in her early 20s presented with acute onset dizziness, vertigo, truncal ataxia and dysarthria 2 weeks following an acute viral illness.
View Article and Find Full Text PDFBMJ Case Rep
January 2025
General Internal Medicine & Infectious Diseases, Hiroshima Prefectural Hospital, Hiroshima, Japan.
Varicella-zoster virus (VZV) is a known cause of meningoencephalitis, typically in immunocompromised inpatients. We report a case of meningitis caused by VZV in an immunocompetent man in his 20s. Diagnosis was delayed due to the atypical presentation of painless occipital zoster mimicking atopic dermatitis, and the presence of hypoglycorrhachia in his cerebrospinal fluid.
View Article and Find Full Text PDFJ Infect Chemother
January 2025
Department of Hematology and Oncology, Okayama University Hospital, Okayama, Japan; Department of Hematology, Oncology and Respiratory medicine, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan.
Enterovirus A71 (EV-A71) is a major pathogen responsible for hand, foot, and mouth disease (HFMD) in infants and children. EV-A71 infection represents an epidemic in the Asia-Pacific region, and can cause serious central nervous system (CNS) infections in immunocompromised patients that can result in paralysis, disability, or death. There have been few reports in the literature concerning EV-A71 CNS infections after allogeneic hematopoietic stem cell transplantation (allo-HSCT) in adult patients.
View Article and Find Full Text PDFJ Neurosurg Case Lessons
January 2025
The Trauma and Neuroscience Institutes, St. John's Hospital and Medical Center, Tulsa, Oklahoma.
Background: Direct carotid-cavernous fistulas (CCFs) are relatively rare but dangerous complications of penetrating traumatic brain injury or maxillofacial trauma. A variety of clinical signs have been described, including ophthalmological and neurological ones. In some cases, severely altered cerebral blood flow can present as massive life-threatening bleeding through the nose, subarachnoid hemorrhage, and/or intraparenchymal hemorrhage.
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