Intrathecal Administration
Intrathecal Administration - Related Videos
05:04
Intrathecal Delivery of a Test Compound to the Rat Central Nervous System
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2025
Source: Chen, Y., et al. Intrathecal Delivery of Antisense Oligonucleotides in the Rat Central Nervous System. J. Vis. Exp. (2019)This video demonstrates the delivery of a test compound into the cerebrospinal fluid (CSF) through a catheter implanted in the lumbar spinal column of a rat model. The compound circulates along the CSF to the brain and spinal cord, enters neurons, and offers therapeutic potential.
05:24
In Vivo SiRNA Transfection and Gene Knockdown in Spinal Cord via Rapid Noninvasive Lumbar Intrathecal Injections in Mice
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Cited by 57 •
2014
This report describes a simple and rapid technique of intrathecal needle puncture for a localized transfection of siRNA in the lumbar spinal cord in mouse under short lasting light anesthesia.
04:41
Lumbar Intrathecal Injection of SOD1-ASOs for Precise CNS Targeting and Predictive Efficacy in Human SOD1-G93A ALS Mice
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2026
This article details intrathecal delivery methods for CNS-targeted therapeutics in adult mice, focusing on protocol precision and enabling repeated injection. It includes findings from a validation study where antisense oligonucleotides reduced mutant SOD1 expression in SOD1-ALS model mice, supporting the utility of the approach in preclinical research on neurodegenerative diseases.
03:33
Intrathecal Delivery of Viruses in a Mouse Model for Treating Central Nervous System Diseases
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2025
Source: Li, D., et al. Direct Intrathecal Injection of Recombinant Adeno-associated Viruses in Adult Mice. J. Vis. Exp. (2019)This video demonstrates the procedure for the intrathecal injection of adeno-associated viruses (AAV) into the cerebrospinal fluid (CSF) of an awake mouse, covering syringe preparation, spinal alignment, and precise needle insertion. This method validates targeted gene delivery, supporting its potential for CNS therapies.
09:29
Self-administration Studies
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2023
Behavioral reinforcement induced by the rewarding feelings following substance use sometimes leads to addiction, which is demonstrated by increased self-administration. Drug self-administration studies in rodents model human behavior during drug abuse. These models are useful in understanding the neurobiological behavior of addiction in order to help scientists discover new treatments for drug dependence. This video reviews the concepts underlying self-administration studies. A general...
FAQs
Placing a medication in CSF positions it close to the spinal cord and brain, so the drug can act within the central nervous system without relying entirely on systemic delivery to achieve nervous-system exposure. By bypassing much of the blood-brain barrier, this route may be useful when treatment delivered through the circulation does not provide sufficient access.
Drug distribution after administration depends on the dose, the movement and handling of CSF, and the injection technique. These factors influence how broadly the medication reaches relevant regions and how effectively it produces a central nervous system effect. Consequently, successful pharmacologic use requires attention not only to the drug selected, but also to delivery conditions.
Systemic delivery depends on distribution through the circulation before a medication reaches nervous-system targets, whereas intrathecal administration places it directly in CSF. This difference can improve access when systemic treatment produces insufficient nervous-system exposure. The comparison is therefore less about drug identity alone and more about the route’s effect on central nervous system availability.
Medications can reach the CSF through a lumbar puncture or an implanted catheter. These approaches provide the physical access needed for intrathecal delivery, while the resulting pharmacologic effect still depends on dose, distribution, CSF dynamics, and injection technique. The access approach is therefore part of controlling how treatment is delivered.
The route is used for spinal anesthetics and analgesics, as well as selected anti-infective and anticancer agents. These examples reflect different therapeutic goals, but they share a need for activity within the central nervous system. Intrathecal treatment becomes especially relevant when systemic therapy does not produce adequate nervous-system exposure for the intended effect.
Injection technique is one of the factors that can influence drug distribution and effectiveness in CSF. Poorly controlled delivery could therefore alter where the medication reaches or how well it acts within the central nervous system. In pharmacology, careful technique is important because the intended dose alone does not fully determine the treatment outcome.