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[56] [78] As a result of downregulated signaling through these proteins, opiates cause VTA neuronal hyperexcitability and shrinkage (specifically, the size of the neuronal soma is reduced). [56] It has been shown that when an opiate-naive person begins using opiates in concentrations that induce euphoria, BDNF signaling increases in the VTA. [79]
Opiate overdose symptoms and signs can be referred to as the "opioid toxidrome triad": decreased level of consciousness, pinpoint pupils and respiratory depression. Other symptoms include seizures and muscle spasms. Sometimes an opiate overdose can lead to such a decreased level of consciousness such that the person will not wake up.
A toxidrome (a portmanteau of toxic and syndrome, coined in 1970 by Mofenson and Greensher [2]) is a syndrome caused by a dangerous level of toxins in the body. It is often the consequence of a drug overdose. Common symptoms include dizziness, disorientation, nausea, vomiting and oscillopsia.
The terms 'opioid' and 'opiate' are sometimes used interchangeably, but the term 'opioid' is used to designate all substances, both natural and synthetic, that bind to opioid receptors in the brain. [4] Opiates are alkaloid compounds naturally found in the opium poppy plant Papaver somniferum. [5] [6]
“The brain may get OK with time in some persons. But it’s hard to find a person who has completely normal brain function after a long cycle of opiate addiction, not without specific medication treatment.” An abstinence-only treatment that may have a higher success rate for alcoholics simply fails opiate addicts.
As of 2015, an estimated 17 million people use opiates, of which heroin is the most common, [14] [15] and opioid use resulted in 122,000 deaths; [16] also, as of 2015, the total number of heroin users worldwide is believed to have increased in Africa, the Americas, and Asia since 2000. [17]
A chart outlining the structural features that define opiates and opioids, including distinctions between semi-synthetic and fully synthetic opiate structures. Oxycodone was first made available in the United States in 1939. In the 1970s, the FDA classified oxycodone as a Schedule II drug, indicating a high potential for non-medical use and ...
Technically, anything over 20 years old can be coined "vintage." But when you truly think of items worth this title, your brain doesn't go to Beanie Babies. Instead, it conjures up images of vinyl...