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Calcium Imaging of Neuronal Activity in Stroke

Calcium imaging is the gold standard for assessing neuronal activity and investigating neuronal networks due to the robust relationship between neuronal activity and intracellular calcium fluctuations. In stroke, disruption of calcium homeostasis leads to the activation of deleterious pathways, including excitotoxicity, mitochondrial dysfunction, and cell death mechanisms, thereby exacerbating neuronal damage. Monitoring calcium signaling during stroke helps to elucidate the timing and extent of neuronal damage and provides potential targets for therapeutic intervention to mitigate injury and preserve brain function.

Fig. 1. Calcium signaling fluctuations in the brain during ischemia.Fig. 1 Waves of calcium activity in the ischemic brain. (Liu, et al., 2021)

Our Calcium Imaging Services

At Ace Therapeutics, we specialize in providing calcium imaging services to help our clients study neuronal activity in animal models of stroke. Our advanced imaging technology and expertise allows us to measure neuronal activity in specific brain regions at the cellular level, providing valuable insight into investigating the mechanisms of ischemic brain injury and evaluating the efficacy of stroke therapies.

  • Two-photon calcium imaging: Two-photon electron microscopy combined with calcium indicators (e.g., the genetically encoded GCaMP) allows us to monitor and visualize calcium dynamics in specific brain regions of living animals, including the sensorimotor, visual, or prefrontal cortex, and hippocampus.
  • Longitudinal studies: We can track and analyze changes in neuronal activity and functional recovery within the same animal over extended periods of time, ranging from weeks to months.
  • Comprehensive readouts: By integrating calcium imaging with behavioral assessments, we provide correlations between neuronal activity patterns and functional outcomes.

Applications of Calcium Imaging in Stroke Research

Our calcium imaging services are designed to to help clients address key questions in stroke research, including:

  • Studying calcium dysregulation and excitotoxicity during ischemic events.
  • Evaluating the effect of stroke drugs on calcium homeostasis and neuronal recovery.
  • Investigating how the brain restores neuronal network connectivity after stroke.

Calcium Imaging Service Process

  • Model Selection

    Assist in selecting the appropriate stroke model, calcium indicator (e.g., GCaMP), and imaging modality.

  • Data Analysis

    Provide detailed analysis of calcium signaling dynamics and neuronal activity.

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  • Consultation

    Begin with an in-depth discussion to understand your research goals and design a tailored proposal for calcium imaging.

  • Experimental Execution

    Conduct calcium imaging studies in live animals.

At Ace Therapeutics, we are committed to advancing stroke research through in vivo two-photon calcium imaging technologies. Whether you are investigating the mechanisms of neuronal damage, evaluating neuroprotective therapies, or exploring network reorganization after stroke, our team is here to support your research. Contact us today to learn how our calcium imaging services can enhance your stroke research and accelerate the development of stroke therapies.

Reference
  1. Liu, L., et al. (2021). Microglial calcium waves during the hyperacute phase of ischemic stroke. Stroke, 52(1), 274-283.
All of our services are intended for preclinical research use only and cannot be used to diagnose, treat or manage patients.
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