Results 21 to 30 of about 2,942 (230)

In Vitro Pharmacology of Mitragynine at α-Adrenoceptors. [PDF]

open access: yesACS Chem Neurosci
Mitragynine is a psychoactive alkaloid in Mitragyna speciosa with unique polypharmacology at G protein-coupled receptors. In addition to its well-known partial agonist activity at opioid receptors, mitragynine is an antagonist at human α2A-adrenoceptors (
Chen Y   +10 more
europepmc   +2 more sources

Comparison of Extraction Variations on Mitragynine Level of Three Variants of Kratom Leaves (Mitragyna speciosa Korth)

open access: yesEduChemia, 2023
Kratom leaves are known as traditional medicine with various benefits, such as antibacterial, antimicrobial, and antioxidant properties. These benefits are attributed to the presence of secondary metabolites, particularly mitragynine.
Syrifah Nur Intan Mutiara   +4 more
doaj   +1 more source

Directed Biosynthesis of Mitragynine Stereoisomers

open access: yesJournal of the American Chemical Society, 2022
ABSTRACTMitragyna speciosa(“Kratom”) is used as a natural remedy for pain and management of opioid dependence. The pharmacological properties of Kratom have been linked to a complex mixture of monoterpene indole alkaloids, most notably mitragynine. Here, we report the central biosynthetic steps responsible for the scaffold formation of mitragynine and ...
Carsten Schotte   +9 more
openaire   +3 more sources

The cellular toxicology of mitragynine, the dominant alkaloid of the narcotic-like herb, Mitragyna speciosa Korth [PDF]

open access: yes, 2015
Mitragyna speciosa Korth (Kratom), a herb of the Rubiaceae family is indigenous in southeast Asia mainly in Malaysia and Thailand. It is used as an opium substitute and has been increasingly abused by drug addicts in Malaysia.
Gooderham, NJ   +3 more
core   +5 more sources

Adolescent kratom exposure affects cognitive behaviours and brain metabolite profiles in Sprague-Dawley rats

open access: yesFrontiers in Pharmacology, 2022
Adolescence is a critical developmental period during which exposure to psychoactive substances like kratom (Mitragyna speciosa) can cause long-lasting deleterious effects.
Aiman Nadhirah Zul Aznal   +7 more
doaj   +1 more source

The Chemical and Pharmacological Properties of Mitragynine and Its Diastereomers: An Insight Review

open access: yesFrontiers in Pharmacology, 2022
Mitragynine, is a naturally occurring indole alkaloid that can be isolated from the leaves of a psychoactive medicinal plant. Mitragyna speciosa, also known as kratom, is found to possess promising analgesic effects on mediating the opioid receptors such
Thiruventhan Karunakaran   +6 more
doaj   +1 more source

Total Synthesis and Structural Plasticity of Kratom Pseudoindoxyl Metabolites**

open access: yesAngewandte Chemie, Volume 135, Issue 35, August 28, 2023., 2023
Although opioids have been used in the treatment of pain for centuries, they cause various adverse effects and addiction. Recently, kratom alkaloids emerged as promising analgesic alternatives for pain management with considerably fewer side effects. The first scalable total synthesis of mitragynine pseudoindoxyl, the most potent atypical opioid kratom
Péter Angyal   +9 more
wiley   +2 more sources

Evaluation of the cardiotoxicity of mitragynine and its analogues using human induced pluripotent stem cell-derived cardiomyocytes. [PDF]

open access: yesPLoS ONE, 2014
INTRODUCTION:Mitragynine is a major bioactive compound of Kratom, which is derived from the leave extracts of Mitragyna speciosa Korth or Mitragyna speciosa (M. speciosa), a medicinal plant from South East Asia used legally in many countries as stimulant
Jun Lu   +7 more
doaj   +1 more source

Mitragynine (Kratom)-Induced Cognitive Impairments in Mice Resemble Δ9-THC and Morphine Effects: Reversal by Cannabinoid CB1 Receptor Antagonism

open access: yesFrontiers in Pharmacology, 2021
Kratom is a widely abused plant-based drug preparation with a global interest in recent years, well beyond its native grounds in Southeast Asia. Mitragynine, its major psychoactive constituent is known to exhibit opioid-like behavioral effects with ...
Ismail Nurul Iman   +10 more
doaj   +1 more source

RP-HPLC-DAD Analysis of Mitragynine Content in Mitragyna speciosa Korth. (Ketum) Leaf Extracts Prepared Using Ultrasound Assisted Extraction Technique and Their Cytotoxicity

open access: yesSeparations, 2022
Mitragynine and its congeners are one of the major phytoconstituents present in Mitragyna speciosa Korth. (ketum) leaves and a well-known factor that contributes to ketum’s pharmacological activities.
Thiruventhan Karunakaran   +5 more
doaj   +1 more source

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