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Related Concept Videos

Hypoglycemia and Glucagon01:15

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Without prolonged fasting, healthy individuals maintain blood glucose levels above 3.5 mM due to a well-adapted neuroendocrine counterregulatory system that effectively prevents acute hypoglycemia, a potentially life-threatening condition. The primary clinical scenarios for hypoglycemia encompass diabetes treatment, inappropriate production of endogenous insulin or insulin-like substances by tumors, and the use of glucose-lowering agents in non-diabetic individuals. Notably, hypoglycemia in the...
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During the initial hours of fasting, the body uses up its glycogen stores as an energy source. Once these glycogen reserves are depleted, the body begins breaking down stored triglycerides and structural proteins. During this stage, glycerol becomes a key substrate for gluconeogenesis, while free fatty acids undergo beta-oxidation to provide energy for tissues, such as skeletal muscle. In the fasting state, the body spares protein breakdown as much as possible to conserve muscle and structural...
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Exercise induces a range of adaptations in muscle tissue, depending on the type and duration of activity. Such physical training can be broadly categorized into two types: endurance exercises and resistance exercises.
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Related Experiment Video

Updated: Apr 5, 2026

Administration of Δ9-Tetrahydrocannabinol (THC) in Adolescent and Adult Mice
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γ-Hydroxybutyrate (GHB) - Effects on Human Performance and Behavior.

F J Couper1, L J Marinetti2,3

  • 1Washington State Toxicology Laboratory, Seattle, WA, USA.

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|August 11, 2015
PubMed
Summary
This summary is machine-generated.

Gamma-hydroxybutyrate (GHB) is a CNS depressant with abuse potential. Its recreational use and that of precursors like GBL can impair cognitive and psychomotor skills.

Keywords:
1,4-ButanediolCNS depressiondrivingimpairmentperformanceγ-butyrolactoneγ-hydroxybutyrate

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Area of Science:

  • Neuroscience
  • Pharmacology
  • Toxicology

Background:

  • Gamma-hydroxybutyrate (GHB) is a naturally occurring CNS depressant.
  • GHB has limited therapeutic use but significant abuse potential.
  • Precursor drugs like GBL and 1,4-butanediol readily convert to GHB in vivo.

Purpose of the Study:

  • To review the chemistry, pharmacology, and toxicology of GHB and its precursors.
  • To discuss medicinal and recreational uses, metabolism, and analytical methods.
  • To examine the effects of GHB on human performance and potential for impairment.

Main Methods:

  • Literature review and synthesis of existing research on GHB.
  • Analysis of pharmacological and pharmacokinetic data.
  • Discussion of analytical challenges and interpretation of results.

Main Results:

  • GHB acts as a CNS depressant, with effects ranging from euphoria to respiratory depression and unconsciousness.
  • Tolerance, physical, and psychological addiction can develop with chronic GHB use.
  • Recreational use of GHB and its precursors can lead to significant psychomotor and cognitive impairment.

Conclusions:

  • GHB and its precursor drugs pose risks due to their CNS depressant effects and abuse potential.
  • Understanding GHB's pharmacology and toxicology is crucial for clinical and forensic contexts.
  • Impairment of human performance is a significant concern with GHB intoxication.