Cerebrolysin

Potential Benefits of Cerebrolysin

• Boosts cognitive function [1-29]
• Improves mood [30-33]
• Improves symptoms of autism [34-36]
• Improves symptoms of attention deficit hyperactivity disorder (ADHD) [37-38]
• Improves symptoms of cerebral palsy (CP) [39-42]
• Repairs nerve damage [43-49]
• Treats hyperthermia-induced neurotoxicity [50-51]
• Treats morphine withdrawal symptoms [52-54]
• Boosts immune function [55-62]
• Improves eye health [63-64]

What is Cerebrolysin?

Cerebrolysin is a nootropic drug, which means that it has the capacity to enhance a number of cognitive functions such as memory, concentration, and thinking skills. The brain-boosting effects of cerebrolysin may be attributed to the neuropeptides it contains. These neuropeptides are active brain peptides (chains of amino acids) that are used by nerve cells (neurons) to enhance their communication with each other. Cerebrolysin is a natural compound derived from the brains of pigs using a safe and standardized enzymatic process. In order to achieve its therapeutic effect, cerebrolysin needs to be administered in the form of injections.

How Cerebrolysin Works?

Cerebrolysin works by increasing the levels of neurotrophic factors (NFT) and brain-derived neurotrophic factors. This in turn stimulates the formation and repair of neurons (nerve cells) in the brain.

Chemical Structure of Cerebrolysin

Research on Cerebrolysin

Boosts Cognitive Function

There is increasing evidence that cerebrolysin may help improve cognitive function and counter the effects of certain medical conditions that lead to cognitive impairment:

1. In patients with schizophrenia dominated by negative symptoms, administration of cerebrolysin in addition to antipsychotic medication appears to improve cognitive function and memory. [1]
2. In healthy older adults with memory loss, the administration of a derivative of cerebrolysin, N-PEP-12, improved memory. [2]
3. In healthy elderly adults, a single dose of cerebrolysin improved memory performance.[3]
4. In patients with Alzheimer’s disease and dementia, high doses of cerebrolysin reduced psychological symptoms and slowed disease progression. [4]
5. In animals with Alzheimer’s disease, cerebrolysin administration reduced the build-up of brain beta-amyloid plaques, which are sticky proteins known to cause the disease. [5-7]
6. In patients with stroke and traumatic brain injury (TBI), cerebrolysin administration appears to improve cognitive recovery without any adverse side effects. [8-14]
7. In infants with communication defects due to severe brain damage during pregnancy, cerebrolysin treatment for 3 months improved communication and social interaction.[15]
8. In mouse and rat models of Parkinson’s disease, cerebrolysin promoted survival of brain cells, improved motor symptoms, and slowed disease progression. [16-18]
9. The combination of cerebrolysin with recombinant tissue-Plasminogen Activator produced a more favorable response in neurological outcome measures as compared to the placebo group. [19]
10. In patients with stroke who were treated with cerebrolysin (30 mL over seven days followed by 10 mL until day 30) once daily over a period of four weeks, a significant improvement in neurological and global function outcomes was observed compared to the group who received placebo treatment. [20]
11. In dementia models and stroke animal models, cerebrolysin decreased the accumulation of abnormal protein structures in the brain, improved the transmission of signals by the neurons (nerve cells), restored neuron structures, induced restorative processes, decreased infarct volume (dead tissue) and formation of edema (swelling), resulting in improved cognitive and behavioral performance. [21-23]
12. In patients with ischemic stroke (insufficient blood flow to the brain), the administration of cerebrolysin produced significant improvements in motor and cognitive recovery. [24-28]
13. In elderly patients with vascular dementia of mild to moderate severity, cerebrolysin administration produced beneficial effects on general cognitive function as measured by mini-mental state examination (MMSE). [29]

Improves Mood

The brain-boosting effect of cerebrolysin also has a beneficial effect on mood, especially in depressive symptoms. Studies show that administration of cerebrolysin produces an antidepressant effect:

1. In elderly patients with depression, intravenous infusions of cerebrolysin reduced symptoms of depression, anxiety, and apathy (lack of interest, enthusiasm, or concern). [30]
2. In patients with Alzheimer’s disease, cerebrolysin treatment improved scores on the Cornell Depression Scale. [31]
3. In patients with treatment-resistant depression, cerebrolysin therapy improved depressive symptoms without any adverse side effects. [32]
4. In rats, cerebrolysin administration produced an anti-anxiety effect. [33]

Improves Symptoms of Autism

Autism, or autism spectrum disorder (ASD), refers to a wide range of medical conditions that affect social interaction, behavior, speech, and nonverbal communication. Since cerebrolysin has the capacity to enhance a number of cognitive functions, this nootropic drug has also been studied for its beneficial effect on autism:

1. In patients with childhood autism and Asperger’s syndrome (one of the autism spectrum disorders), cerebrolysin therapy improved various areas of cognitive function (expressive and receptive speech, fine motoring, and playing). [34]
2. In children with autism, cerebrolysin therapy improved symptoms and scores on the Childhood Autism Rating Scale (CARS). [35]
3. In a rat model of autism, cerebrolysin therapy improved behavior and brain cell communication. [36]

Improves Symptoms of Attention Deficit Hyperactivity Disorder (ADHD)

ADHD is a mental disorder characterized by hyperactivity, impulsivity, and short attention span. This mental disorder affects children and teens and can transition into adulthood. Studies show that administration of cerebrolysin may help reduce symptoms of ADHD:

1. In children with ADHD, cerebrolysin administration at a dose of 1 ml per 10 kg of weight intramuscularly for 1 month improved the core symptoms of ADHD. [37]
2. In patients with ADHD of unknown cause, cerebrolysin treatment reduced impulsivity and hyperactivity. [38]

Improves Symptoms of Cerebral Palsy (CP)

CP is a developmental disability that affects muscle tone, movement, and motor skills. It is believed that CP is caused by brain damage during pregnancy or birth. Studies show that cerebrolysin administration in patients with CP improves functional outcomes:

1. In patients with CP, intramuscular administration of cerebrolysin as a single daily dose of 0.1 cc/kg for 10 days and then continued weekly for 4 months appears to improve gross motor function. [39]
2. In patients with infantile cerebral paralysis, the administration of cerebrolysin improved symptoms without any adverse side effects. [40]
3. In pediatric patients living with CP, the combination of standard rehabilitation therapy with cerebrolysin improved gross motor skills. [41]
4. In children with traumatic brain injury and cerebral palsy, cerebrolysin therapy induced the repair of nerve cells of the brain. [42]

Repairs Nerve Damage

With nerve damage, there can be a broad range of symptoms depending on the location and types of nerves affected. In addition, chronic nerve damage may impair the sensation or function of the affected body part. Interestingly, numerous studies support the therapeutic benefits of cerebrolysin in different medical conditions associated with nerve damage:

1. In patients with diabetic neuropathy (nerve damage caused by diabetes), daily cerebrolysin infusion over a period of 10 days alleviated pain and tingling sensations. [43]
2. In a mouse model of diabetic neuropathy, the administration of cerebrolysin improved dysfunction of the sciatic nerve (the largest single nerve located on each side of the lower spine going all the way down to the foot). [44]
3. In patients with different nerve injuries, cerebrolysin treatment was associated with rapid neurological recovery after various peripheral nerve lesions than conventional therapies. [45]
4. In aged rats, cerebrolysin treatment ameliorated performance deficits and nerve damage. [46]
5. In mice, low-dose cerebrolysin administration promoted regeneration of injured spinal motor neurons. [47]
6. In animals with nerve injury related to microsurgical suturing, cerebrolysin administration promoted regeneration of the injured peripheral nerve. [48]
7. In patients with various forms of nerve injury, cerebrolysin was more associated with rapid recovery of neurological functions than other therapies such as steroids and supportive therapies such as vitamins and antioxidants. [49]

Treats Hyperthermia-Induced Neurotoxicity

Adverse environmental circumstances such as heat stress related to hot climates can lead to disturbed mental function. This condition is known as hyperthermia-induced neurotoxicity. Researchers suggest that one of the suitable therapeutic strategies to treat heat-induced mental anomalies related to this condition is cerebrolysin administration. Studies show that cerebrolysin exerts its therapeutic effect through the following important mechanisms:

1. In rats exposed to whole body hyperthermia (increased temperature), cerebrolysin administration induced a marked reduction in brain toxicity, thus preventing mental dysfunction related to heat stress. [50]
2. In rats suffering from heat stroke, cerebrolysin exerted superior neuroprotective effects as compared to other neuroprotective agents. [51]

Treats Morphine Withdrawal Symptoms

Prolonged use of morphine changes the way nerve receptors in the brain work. As a result, sudden withdrawal from this drug can lead to debilitating symptoms such as sleep problems, restlessness, anxiety, digestive problems, high blood pressure, rapid heartbeat, and vision problems. Studies suggest that cerebrolysin can be considered a therapeutic option for morphine withdrawal symptoms:

1. A study reported that morphine withdrawal can activate heat shock protein which triggers unpleasant symptoms, suggesting that cerebrolysin can produce beneficial effects through its ability to suppress the activation of these proteins. [52]
2. Rat studies showed that cerebrolysin counteracted the activation of heat shock protein, thus alleviating the negative effects of morphine withdrawal. [53-54]

Boosts Immune Function

There is mounting evidence that cerebrolysin may help heighten the immune response and prevent a wide array of diseases. Studies show that cerebrolysin positively affects the production of different cells of the immune system:

1. In mice, cerebrolysin treatment increased the production of Thy-1 cells. [55]
2. In patients with mental developmental delay, cerebrolysin therapy at a dose of 0.1 mg/1kg of body mass for 42 days improved immune status. [56]
3. In patients with minimal cerebral dysfunction, intrasmuscular cerebrolysin administration at a dose of 1 ml per 10 kg of body weight for 1 month increased the blood levels of CD19(+) and CD16(+) cells with a simultaneous normalization of blood IgG, IgA, and natural killer cell levels. [57]
4. A laboratory study showed that cerebrolysin exerts its immune-boosting properties by increasing the production of T- and B-lymphocytes, and promoting the survival of immunocompetent cells. [58]
5. Studies found that cerebrolysin can help decrease the levels of free radicals, which are unstable molecules that damage cells and impair the function of immune system cells. [59-62]

Improves Eye Health

Cerebrolysin has the capacity to stimulate the regeneration of various nerves and cells in the body. Studies show that this regenerative ability may help maintain visual health:

1. In a rat model of optic nerve crush, the injection of cerebrolysin promoted the survival of retinal cells. [63]
2. In a patient with vision loss in both eyes, intense photophobia (light sensitivity), and eye pain, cerebrolysin administration appears to reduce eye pressure and improve visual acuity. [64]

Associated Side Effects of Cerebrolysin

Cerebrolysin side effects are very uncommon. There have been some side effects associated with the use of this drug wherein the patient had one of the issues listed below at some point while being on cerebrolysin. However, these side effects weren’t confirmed to be associated with the treatment and could have been a coincidence and not related to the use of cerebrolysin. Despite this, it was listed as a side effect associated with cerebrolysin even though these associated side effects are very uncommon.

Side effects associated with cerebrolysin may include the following:

• Agitation
• Changes in blood pressure
• Confusion
• Constipation
• Diarrhea
• Fatigue
• Feeling hot
• Nausea
• Seizure
• Vertigo
• Vomiting

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