Although still in its infancy in veterinary medicine, targeting neural circuits with electricity offers huge potential to provide focused, personalized treatment for a variety of ailments.
Increasingly, treatment for a host of conditions and ailments is based on electroceuticals rather than pharmaceuticals. Instead of prescriptions for chemical molecules, some doctors are prescribing specific frequencies, waveforms, and amplitudes for their patients. This is not science fiction—it's happening right now.
It’s not really a stretch to see how this can be. Every day, car engines are started and doors are opened from a distance using a fob. This is made possible by matching frequency signals (waves) that are programmed to initiate a ligand—receptor type of reaction, allowing people to enter a warm space and be on their way. Photos and messages are relayed daily by the millions from one phone to another. Images and videos (waves, frequencies) travel through space, not getting crossed with others and reaching their intended destinations intact.
Simply, electroceuticals, which are sometimes called bioelectronics, are electric waveforms that stimulate the nervous system electronically and modify bodily functions. Waveforms, frequencies, and microamperes—collectively called microcurrent electrical therapy (MET) and cranial electrotherapy stimulation (CES)—are being used to stimulate cell regeneration and treat injuries, acute and chronic pain, anxiety, depression, and insomnia.1-6
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MET and CES work because the nervous system and tissues function electrochemically and can be modulated readily by electrical intervention. Low-frequency current effectively targets cell receptors, activating them through frequency matching in a manner similar to that of chemical ligands.
Robert O. Becker, MD, an orthopedic surgeon known as the father of electromedicine and electrochemically induced cellular regeneration, began studying electric current therapy in 1970. Fifteen years later, he demonstrated that electric current is the trigger that stimulates healing, growth, and regeneration in all living organisms. Signals come from an electric control system that he called the current of injury, which is conducted through Schwann cells and the myelin surrounding neurons.7
In 1980, Candace Pert, PhD, published her research on ligand—receptor binding, providing a new understanding of cellular physiology and the connection between mind and body.8 Bjorn Nordenstrom, MD, proposed a model of biologically closed electric circuits analogous to closed circuits in electronic technology. He postulated in 1998 that mechanical blood circulation is closely integrated anatomically and physiologically with a controlling bioelectric system.9
Taking the research findings of these and other pioneers, neurobiologist Daniel L. Kirsch, PhD, DAAPM, FAIS—whose mentor was Dr. Becker—patented a unique waveform. He collaborated with engineer Raymond Chan to design medical devices for implementing pain and stress control technologies into clinical systems. His Alpha-Stim technology was the first dual electromedical device (MET and CES) to be cleared by the Food and Drug Administration to market in 1981. Dr. Kirsch remains at the forefront of research in this field.2 Today, the Alpha-Stim and Fisher Wallace Stimulator (formerly Liss Cranial Stimulator) are the primary electroceutical devices on the market.
Microcurrent electrical therapy on the elbow of a dog with degenerative joint disease.
As for many drugs, early research on MET and CES was conducted using animals. Once safety was established, the focus turned to human studies and clinical trials. Because the current is subsensory, it lends itself well to double-blind placebo-controlled crossover studies.
Animal studies in neurophysiology and electromedicine continue to yield new discoveries on the efficacy of this therapeutic approach. Measurements have shown that CES current across the head sends electric impulses through every area of the brain. CES directly stimulates the brain’s neuromatrix, including the limbic area, or emotion center, of the brain.10,11
Results of an experimental study in rats with CES documented as much as a 3-fold increase in beta-endorphins after only a single CES treatment.12 Results of a double-blind study looking at 33 behavioral traits in horses treated with CES showed that all the changes were highly intercorrelated and strongly indicated a reduction in the horses’ state of arousal following CES treatment that was not noted in the sham treatments (Box).13
Neurosurgeon C. Norman Shealy, MD, assessed beta-endorphin and serotonin levels in plasma and cerebrospinal fluid (CSF) following a 20-minute session of CES and found that beta-endorphins measured 98% higher in plasma and 219% higher in CSF. Serotonin levels were 15% to 40% higher in plasma and 50% to 200% higher in CSF.14
Results from further research have shown the effectiveness of CES in treating fibromyalgia, posttraumatic stress disorder, spinal cord injury, cancer pain, and dental anxiety in humans.15-17 Results of low-resolution electromagnetic tomography and functional magnetic resonance imaging studies have shown that select waveforms can reach most cortical and subcortical areas of the brain, thereby altering the brain’s emotional centers (ie, thalamus, hypothalamus, basal ganglia, reticular activating system, cerebral cortex, and limbic system) where the amygdala controls the strength of emotional responses, especially for fear and anger.11
Cells throughout the body manufacture peptides that act as ligands to surface receptors on other remote cells, communicating via the extracellular fluid and circulatory system. Cells within a specific organ or tissue system communicate through specific frequencies in the microamperage range, activating the current of injury and causing the system to tend toward homeostasis. Neuromodulation imparts an electric signal with a frequency that perfectly matches the receptors in the body to resonate and activate intracellular responses.
MET can act similarly to ligands in activating receptors to send their messages into cells and produce effects resembling a wide range of chemical messengers. MET can be viewed as a catalyst in initiating and sustaining the numerous chemical and electrical reactions that occur in the healing process. An effective biphasic, squared, long-pulse-width waveform in the microamperage range (1000 times less than that of a transcutaneous electrical nerve stimulation device and below sensation threshold) will use resonant frequencies to activate central pain modulatory mechanisms.
The sensation of pain is transmitted through the body along billions of nerve cells that are designed specifically to transmit messages through electrochemical signals. Physics controls chemical reactions in the body, and most bodily functions can be normalized electrically. It is the application protocol that affects the peripheral pain site directly and accesses the central nervous system by directing the current through the spine. Combining MET and CES addresses all 4 pain pathways: transduction, transmission, modulation, and perception.
The resultant central and peripheral effects of CES include calmness, relaxation, reduced agitation and aggression, stabilized mood, improved sleep, and reduced pain. Results will vary with the exact technology used, the pathology of the disease being treated, the overall health and hydration of the patient, and owner compliance. Patient history, prior medical interventions, previous injuries, and surgical scars can affect overall outcome as well.
Waveforms can be used effectively to activate the body’s natural electric impulses.
CES and MET have been used extensively in the clinical setting for nearly 2 decades to initiate cellular regeneration and control not only acute and chronic pain situations, such as arthritis, spinal injury, nerve conduction deficiencies, cancer, sprains, strains, wounds, and surgical pain, but also such stress-related conditions as anxiety, insomnia, cognitive dysfunction states, noise phobia, and depression. Prescription MET and CES devices are long lasting, cumulative, safe, effective, easy to use, portable, and nonaddictive, and have no known tolerance concerns. Adverse effects are minor and self-limiting, primarily consisting of skin irritation.
Treatments can be applied in clinic by the technical team, and devices can be prescribed for use at home with a short in-clinic training session. Initially, the best results will be achieved when treatments are applied twice a day, but in-clinic treatments administered 2 to 3 times per week will also be beneficial. Follow-up patient assessment includes clinical observation, range of motion, change in posture, use of extremities, calmness, improved sleep, appetite, attitude, and behavior.
As an aid to endogenous bioelectric currents, electroceuticals can accomplish miraculous things. They may in fact work better in the absence of any interference from factors based on our previous, limited, chemical-dominant view of physiology. Today and in the future, disorders of both the body and mind might be better treated using a range of frequencies that have the potential to treat a variety of pathologies effectively without the risk of harmful adverse effects.
Dr. Frick is a leading authority in the application of microcurrent therapy for animals. Her focus on physiotherapy has spanned over 20 years and her research has been published in the Journal of Equine Veterinary Science, Innovative Veterinary Care Journal, and the Journal of the American Holistic Veterinary Medical Association.
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