Title : Behavioral profiling of ultra-high dilution cuprum metallicum using hole board test and hind limb tonic extension in a seizure-induced murine model
Abstract:
Background: Cuprum metallicum is a classical homeopathic remedy traditionally indicated for convulsive states and neuromuscular disturbances. Despite extensive clinical use, systematic preclinical behavioral evaluation of its effects in experimental epilepsy models remains limited. The present study aimed to assess the influence of Cuprum metallicum on exploratory behavior and seizure-associated neuromuscular manifestations.
Methods: Swiss albino mice were subjected to a pentylenetetrazol (PTZ)–induced seizure model to simulate neuro-excitatory stress. Animals were divided into control, PTZ control, standard drug, and Cuprum metallicum–treated groups. Behavioral assessment was conducted using the Hole Board Test to evaluate exploratory activity and anxiety-related behavior. Seizure severity and neuromuscular rigidity were assessed using the Hind Limb Tonic Extension (HLTE) parameter, recorded following PTZ administration. Behavioral observations were documented using standardized scoring criteria.
Results: PTZ administration resulted in marked suppression of exploratory behavior and pronounced hind limb tonic extension, indicating increased seizure severity and neuromuscular involvement. Treatment with Cuprum metallicum demonstrated improvement in exploratory behavior, reflected by increased head-dipping activity in the Hole Board Test compared to seizure controls. A reduction in HLTE intensity was observed in treated groups, suggesting attenuation of seizure-associated tonic motor manifestations. Higher dilutions showed comparatively greater normalization of behavioral responses.
Conclusion: Cuprum metallicum exhibited measurable modulatory effects on exploratory behavior and hind limb tonic extension in a PTZ-induced seizure model. The combined use of Hole Board Test and HLTE provides a relevant behavioral framework to evaluate seizure-related neurobehavioral outcomes and supports further preclinical exploration of homeopathic metal-based preparations.
Keywords: Cuprum metallicum, PTZ-induced epilepsy, Hole Board Test, Hind Limb Tonic Extension, behavioral assessment.
