Scratching up my brain

Scratching on my brain , I'm gonna dig in much deeper.
More than an underdog, you can call me a deep sleeper.
I remember max_a_million came thru & we huffed Ether.
I would crank up hip hop that I played on my computer speakers.
They try to make you weaker, dont let them get you crossed up.
They know your the leader but you never need to floss for what?
I can see the evil in their eyes, I know they're all corrupt.
But never can enhance their mind & take the time to grow up.
Dreams had to cut em up, I woke up to the real world.
I drank too much & got so sick but ain't ashamed i had to hurl.
I had a crush on many girls but only got to fuck a few.
My mom was addicted to this game call it bust_a_move.
Please take the time to choose, the road that you travel next.
I listen to the Wu_Wisdom that I must protect my neck.
Gotta gather all these checks & earn a much higher amount.
Gain what I only need then build my fortress on a mountain

Light touch plays a critical role in everyday tasks, such as picking up a glass or playing a musical instrument. The sensation is also an essential part of the body's protective defense system, alerting us to objects in our environment that could cause us to fall or injure ourselves. In addition, it is part of the detection system that has evolved to protect us from biting insects, such as those that cause malaria and Lyme disease, by eliciting a feeling of an itch when an insect lands on your skin.

Salk researchers have discovered how neurons in the spinal cord help transmit such itch signals to the brain. Published in the journal Cell Reports on July 16, 2019, their findings help contribute to a better understanding of itch and could lead to new drugs to treat chronic itch, which occurs in such conditions as eczema, diabetes and even some cancers.

"The takeaway is that this mechanical itch sensation is distinct from other forms of touch and it has this specialized pathway within the spinal cord," says Salk Professor Martyn Goulding, holder of the Frederick W. and Joanna J. Mitchell Chair and a senior author of the new work.

Goulding and his colleagues had previously discovered a set of inhibitory neurons in the spinal cord that act like cellular brakes, keeping the mechanical itch pathway in the spinal cord turned off most of the time. Without these neurons, which produce the neurotransmitter neuropeptide Y (NPY), the mechanical itch pathway is constantly on, causing chronic itch. What the researchers didn't know was how the itch signal, which under normal circumstances is suppressed by the NPY neurons, is transmitted to the brain to register the itch sensation.

David Acton, a postdoctoral fellow in the Goulding lab, hypothesized that when the NPY inhibitory neurons are missing, neurons in the spinal cord that normally transmit light touch begin to act like an accelerator stuck in the "on" position. Acton then identified a candidate for these "light touch neurons," a population of excitatory neurons in the spinal cord that express the receptor for NPY, the so-called Y1 spinal neurons.

To test whether these neurons were indeed acting like an accelerator, Acton undertook an experiment that involved selectively getting rid of both the NPY "brake" and Y1 "accelerator" neurons. Without Y1 neurons, mice didn't scratch, even in response to light-touch stimuli that normally make them scratch. Moreover, when Acton gave the animals drugs that activated the Y1 neurons, the mice scratched spontaneously even in the absence of any touch stimuli. The Goulding team was then able to show that the NPY neurotransmitter controls the level of Y1 neuron excitability; in other words, NPY signaling acts as a kind of thermostat to control our sensitivity to light touch. Data from other labs has found that some people with psoriasis have lower than average levels of NPY. This may mean their brakes on mechanical itching are less effective than other people's, a potential cause of their itching.

While Y1 neurons transmit the itch signal in the spinal cord, other neurons are thought to be responsible for mediating the final response in the brain but more research is needed to continue mapping out the full pathway, according to the researchers. Understanding this will help suggest targets for drugs to turn down the sensation of itch in people who are overly responsive and could lead to ways to address chronic itch.

"By working out mechanisms by which mechanical itch is signaled under normal circumstances, we might then be able to address what happens in chronic itch," says Acton.

Other researchers on the study were Xiangyu Ren, Stefania Di Costanzo, Antoine Dalet and Steeve Bourane of the Salk Institute; and Ilaria Bertocchi and Carola Eva of the University of Torino.

The study was supported by the National Institutes of Health and the Caterina Foundation.

Nah... when I was in NPP most of topic was neuropathic pain and sleep. Like what are you even doing on here? Yeah my dad did hurt his spine falling but that wasn’t it either. And to the first one Nah it was CREAM on the first time I saw pink skies... I can sing 3/4 of the song protect your neck and like... wu straight (they big as fuck with as many different opinions as I have too) but these “things that just took over my body” like enough is enough for real!

“I grew up on the dime side, on the pretty things you want you climb side” it was one of the first songs I ever wrote/responded to