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  • Brain-Derived Neurotrophic Factor

Brain-Derived Neurotrophic Factor

November 28, 2016

Brain-Derived Neurotrophic Factor and How to Use It to Win the Space Race

Inside every brain,
be it that of a communist revolutionary or a bourgeois swine,
there exist a class of proteins called the neurotrophic factors.

These are a group of peptides and small proteins that moderate the
birth, survival, function, and death of neurons.

Within this group are the neurotrophins, of which
Neural Growth Factor (NGF) and Brain-Derived Neurotrophic Factor (BDNF) are the most important.
Both of these compounds are involved in

NeuroGenesis
the creation of new neurons
the creation of new dendrites
(the “tentacles” of neurons that make connections with new neurons),
AND
Neuronal Differentiation

(deciding where the dendrites go).

NGF is extremely expensive to create in a lab,
and is therefore significantly under-researched
(thanks, ethical capitalism).

There are, however, dozens of ways to increase BDNF safely and effectively.

What does BDNF do?

bdnf

What does BDNF do for me?

Plenty, tovarisch!

BDNF streamlines the reward pathways responsible for pleasure, which in turn increases the ability to focus and attenuates ADHD.
Low levels of BDNF, which are completely normal in the later stages of life, are associated with dementia, Alzheimer’s, schizophrenia, depression, anorexia, and bulimia.

What this means is that BDNF is neuroprotective against cognitive decline, and is able to attenuate the effects of the aforementioned mental illnesses.

Is there such a thing as too much BDNF?

Maybe

When the infrastructure of the reward system becomes too integrated, drug-seeking behavior increases in rats exposed to opioids. Interestingly, when rats are exposed to opioids, they see an increase in BDNF as well.

What compounds increase BDNF?

1. Curcumin


This pigment that makes ginger and turmeric yellow is famous for being a strong anti-inflammatory that breaks the neurological positive-feedback loop of stress, inflammation, and low BDNF. In other words, BDNF is usually not created in the presence of stress as much as it would have been at baseline levels, but when curcumin is present, BDNF is created at the baseline quantity. Curcumin must be taken with piperine or black pepper in order to ease absorption.

 

DID YOU KNOW? The two most important actions of BDNF after adolescence are dendritogenesis, the creation of new dendrites, and synaptogenesis, the creation of new connections between dendrites. This is achieved when BDNF binds to a specific “Tyrosine Kinase” receptor, i.e. a receptor that requires two BDNF molecules to be present to activate, called TrKb. The binding of two BDNF proteins to a TrKb allows the entire skeleton of the neuron to change shape, which results in new dendrites. These new dendrites form tight junctions called synapses with the axon terminals of other neurons. Molecules called neurotransmitters to flow through this synapse and allow the two neurons to communicate, just how cosmonauts like yourself communicate with Korolyov through radio signals. This means that the infant and toddler years of the human life cycle are like adorable little five-year plans for the creation of a communicative infrastructure in the human brain.

2. Semax


Originally developed to help stroke and cognitive disorders, Semax is a post-Soviet Union peptide that “rapidly” increases the levels of BDNF throughout the brain, as well as the reward system. Because Semax activates the reward system, it should be taken in the morning and not at night, as it may cause insomnia. Interestingly, BDNF’s receptor TrKb is not downregulated (i.e. does not appear less throughout the brain after administration) by Semax but is upregulated, which means that Semax does not form a tolerance. Instead, Semax may form a reverse-tolerance, which means that less Semax will be required to reach the same effects over time. It is a stimulant, anxiolytic, and antidepressant. Semax increases BDNF in the hippocampus and the frontal cortex.

 

3. Selank


The sister-compound to Semax, Selank is another post-Soviet Union peptide that increases BDNF in just the hippocampus. Unlike Semax, Selank is primarily an anxiolytic compound with strong anti-depressant effects. Selank’s antidepressant effects have to do with the ability to increase serotonin and dopamine throughout the brain rapidly after administration. This is possibly secondary to its inhibition of the degradation of endogenous opioid peptides. The increase in BDNF may be secondary to the increase in the quantity of endogenous opioids as well.

 

4. Cerebrolysin


One of the most rudimentary nootropics, Cerebrolysin actually contains BDNF inside of it, as well as the aforementioned Nerve Growth Factor (NGF). Cerebrolysin is made out of peptides extracted from the brains of pigs. While under-researched in relation to its nootropic effects, Cerebrolysin has been found to be an effective treatment for stroke and dementia. Unlike Semax, Selank, and Curcumin, it does not have anxiolytic or antidepressant effects.

 

5.Noopept


Closely related to the
racetams group of nootropics, Noopept is another post-Soviet invention. Noopept is metabolized into the chemical cycloprolylglycine, which is an endogenous peptide with strong anxiolytic effects at the GABA receptor, which is the main site for benzodiazepines and alcohol. Noopept, like Cerebrolysin, increases dendritic proliferation via both BDNF and NGF. It’s the strongest effect, though, is its short-term cognitive enhancement effects by way of AMPA glutamate receptor modulation.



See you in space cosmonauts.

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2268201

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2913611

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