ArticleAmerican journal of physiology. Regulatory, integrative and comparative physiology2014
Pharmacologically induced hypothermia via TRPV1 channel agonism provides neuroprotection following ischemic stroke when initiated 90 min after reperfusion.
Article in American journal of physiology. Regulatory, integrative and comparative physiology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 42 papers.
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Who cites it
42 citing papers in PubMed, 74 citations in OpenAlex.
- Peritoneal delivery of capsinoids, nonpungent TRPV1 agonists, induces mild hypothermia in conscious mice through TRPV1 activation of visceral vagal afferents.Scientific reports · 2025Article
- Dual Role of TRPV1 Channels in Cerebral Stroke: An Exploration from a Mechanistic and Therapeutic Perspective.Molecular neurobiology · 2024Review
- TRP Channels in Stroke.Neuroscience bulletin · 2024Review
- Capsaicin, The Vanilloid Receptor TRPV1 Agonist in Neuroprotection: Mechanisms Involved and Significance.Neurochemical research · 2023Review
- Natural product P57 induces hypothermia through targeting pyridoxal kinase.Nature communications · 2023Article
- Pathophysiological Roles of Transient Receptor Potential (Trp) Channels and Zinc Toxicity in Brain Disease.International journal of molecular sciences · 2023Review
- Activation of TRPV1 receptor facilitates myelin repair following demyelination via the regulation of microglial function.Acta pharmacologica Sinica · 2023Article
- Transient receptor potential ion channels and cerebral stroke.Brain and behavior · 2023Review
- Activation of Meningeal Afferents Relevant to Trigeminal Headache Pain after Photothrombotic Stroke Lesion: A Pilot Study in Mice.International journal of molecular sciences · 2022Article
- Neuroprotective Effects of Pharmacological Hypothermia on Hyperglycolysis and Gluconeogenesis in Rats after Ischemic Stroke.Biomolecules · 2022Article
- A Direct Comparison of Physical Versus Dihydrocapsaicin-Induced Hypothermia in a Rat Model of Traumatic Spinal Cord Injury.Therapeutic hypothermia and temperature management · 2022Article
- Anti-Inflammatory Effect of Beta-Caryophyllene Mediated by the Involvement of TRPV1, BDNF and trkB in the Rat Cerebral Cortex after Hypoperfusion/Reperfusion.International journal of molecular sciences · 2022Article
- Eugenol improves high-fat diet/streptomycin-induced type 2 diabetes mellitus (T2DM) mice muscle dysfunction by alleviating inflammation and increasing muscle glucose uptake.Frontiers in nutrition · 2022Article
- Selective Brain Cooling: A New Horizon of Neuroprotection.Frontiers in neurology · 2022Review
- Transcutaneous Auricular Vagus Nerve Stimulation Promotes White Matter Repair and Improves Dysphagia Symptoms in Cerebral Ischemia Model Rats.Frontiers in behavioral neuroscience · 2022Article
- Hypothermia Induced by Oxcarbazepine after Transient Forebrain Ischemia Exerts Therapeutic Neuroprotection through Transient Receptor Potential Vanilloid Type 1 and 4 in Gerbils.International journal of molecular sciences · 2021Article
- Advancement in research on the role of the transient receptor potential vanilloid channel in cerebral ischemic injury (Review).Experimental and therapeutic medicine · 2021Review
- A low-cost mouse cage warming system provides improved intra-ischemic and post-ischemic body temperature control - Application for reducing variability in experimental stroke studies.Journal of neuroscience methods · 2021Article
- Neuroprotective Phytochemicals in Experimental Ischemic Stroke: Mechanisms and Potential Clinical Applications.Oxidative medicine and cellular longevity · 2021Review
- Neuroprotective Effects of Early Hypothermia Induced by Phenothiazines and DHC in Ischemic Stroke.Evidence-based complementary and alternative medicine : eCAM · 2021Article
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Authors and funding
3 authors at 1 institution in 1 country.
Funding
Abstract
Traditional methods of therapeutic hypothermia show promise for neuroprotection against cerebral ischemia-reperfusion (I/R), however, with limitations. We examined effectiveness and specificity of pharmacological hypothermia (PH) by transient receptor potential vanilloid 1 (TRPV1) channel agonism in the treatment of focal cerebral I/R. Core temperature (T(core)) was measured after subcutaneous infusion of TRPV1 agonist dihydrocapsaicin (DHC) in conscious C57BL/6 WT and TRPV1 knockout (KO) mice. Acute measurements of heart rate (HR), mean arterial pressure (MAP), and cerebral perfusion were measured before and after DHC treatment. Focal cerebral I/R (1 h ischemia + 24 h reperfusion) was induced by distal middle cerebral artery occlusion. Hypothermia (>8 h) was initiated 90 min after start of reperfusion by DHC infusion (osmotic pump). Neurofunction (behavioral testing) and infarct volume (TTC staining) were measured at 24 h. DHC (1.25 mg/kg) produced a stable drop in T(core) (33°C) in naive and I/R mouse models but not in TRPV1 KO mice. DHC (1.25 mg/kg) had no measurable effect on HR and cerebral perfusion but produced a slight transient drop in MAP (<6 mmHg). In stroke mice, DHC infusion produced hypothermia, decreased infarct volume by 87%, and improved neurofunctional score. The hypothermic and neuroprotective effects of DHC were absent in TRPV1 KO mice or mice maintained normothermic with heat support. PH via TRPV1 agonist appears to be a well-tolerated and effective method for promoting mild hypothermia in the conscious mouse. Furthermore, TRPV1 agonism produces effective hypothermia in I/R mice and significantly improves outcome when initiated 90 min after start of reperfusion.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.