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MD Biosciences Blog

Porcine incisional pain model pioneered by MDB scientists referenced in medical research journal

Posted by MD Biosciences on Jul 25, 2018 11:35:15 AM

MD Biosciences recognized in a paper published by Medtronic, a medical research company, to examine the efficacy of a sustained-release clonidine depot, placed in the wound bed, in a pig incisional pain model. To read the full paper, visit Dove Press Journal of Pain Research.

In addition to incisional pain models, other wound healing models offered at MD Biosciences are excisional woundings, heat wounds/burns, UV wounds and post-operative pain wounds. Contact us to discuss study-specific inquiries!

 

preclinical models of wound healing: full-thickness incisional and excisional 

 




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Pig post operative pain model pioneered by our scientists recognized in a scientific publication: Synergistic Effect of Bupivacaine and Meloxicam in Clinical & Animal Studies

Posted by MD Biosciences on Jul 12, 2018 11:45:29 AM

Proud to announce that the pig post operative pain model pioneered by our scientists was used and cited in a clinical study poster publication written by Heron Therapeutics to assess the synergistic effect of Bupivacaine and Meloxicam in HTX-011.

"Meloxicam and Bupivacaine combined in a single extended-release formulation (HTX-011) delivered at the wound site in a preclinical post-surgical pain model in pigs exhibited greater analgesia than either compound delivered alone within the same extended-release formulation; this finding was confirmed in an initial clinical trial in bunionectomy" (Heron Therapeutics, 2018).

To learn more about our rodent and pig post-operative pain models, visit our preclinical pain webpage or view  our datasheet below.

pig post-operative pain (POP) model, preclinical efficacy 

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Topics: Pain, post-operative pain, neuropathic pain, preclinical research

Now Available: Electrophysiology Laboratory Services featuring DANTEC Keypoint Focus

Posted by MD Biosciences on Jul 12, 2018 11:00:00 AM

 MB Biosciences is proud to announce our newly established electrophysiology capabilities suited for preclinical neuropathy research! Our lab has acquired the cutting-edge Dantec KEYPOINT Focus tool utilized to measure electrophysiological action potentials. Our scientists have applied these new capabilities in the assessment of Muscle Action Potential (measuring signals from the nerve to muscle) in rodent models of peripheral nerve injury. Using these capabilities, we can measure nerve regeneration, degeneration and protection in response to various treatments. This technology can be further applied to non-rodent species such are our pig translational pain models. Additionally, we are now offering measurement capabilities for Motor Action Potential with a specialized Renovo Neural paradigm—particularly useful for studies of EAE, MS, spinal cord injuries and CNS pain. Application of these capabilities specifically to EAE and MS models provide valuable insights into multiple areas of compound efficacy. View the graphs below to learn more about the ways in which using intraoperative techniques applied in the brain, peripheral nerve surgeries and spine has led us to developing models for monitoring impairment in neural activity. By empirically evaluating neural diseases and their physiological symptoms, we can effectively offer precise measurements for drug effect and treatment options.


To learn more about how this technology can be applied to specific study needs, please contact us.

 

In-vivo neurophysiology

 

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Figure 1. A) CNS model - Transcranial electric motor evoked potentials (tcMEPs) were recorded from the bilateral tibialis anterior (TA) muscles using paired subdermal needle electrodes. TcMEP stimulating electrodes were placed anterior to the C3 and C4 scalp positions. B) Pain and sensory model - Somatosensory evoked potential (SSEP) - electrodes were placed along the medial aspect of each ankle at the malleoli for bipolar stimulation of the posterior tibial nerves (PTN). Somatosensory evoked potentials (SSEP) were recorded over the cerebral cortex using subdermal needle electrodes placed posterior to the C3 and C4 scalp positions. Recording electrodes were referenced to the FPz position on forehead. C) PNS model - Compound muscle action potential (CMAP) - recorded from the tibialis anterior muscle using paired subdermal needle electrodes. Stimulating electrodes were placed along the sciatic notch. Data were recorded from a Sprague Dawley rat.

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Figure 2: tcMEP Recordings from TA muscle in a multiple sclerosis model. A A healthy potential recorded from naive mouse (C57). B) Desynchronized potential recorded from a mouse treated with MOG demonstrating a clinical paralysis score of 1-2 (mild paralysis). Note multiple picks of potential, late latency for the main potential and extended duration of the total event. C) Small and weak potential recorded from a mouse treated with MOG demonstrating a clinical paralysis score of 3-4 (moderate paralysis).

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Topics: Pain, neuropathic pain, preclinical research, Electrophysiology