ArticlePlants (Basel, Switzerland)2023
Seasonal and Geographic Variation in Alkaloid Content of Kratom (
Article in Plants (Basel, Switzerland), 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
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Who cites it
17 citing papers in PubMed, 33 citations in OpenAlex.
- Assessment of Abuse Potential-Related Effects of Oral Dried Kratom Leaf Powder in Healthy Normal Participants Following Single and Multiple Daily Doses.Drug testing and analysis · 2026Trial
- Effects of Botanical Variation, Plant Part, and Extraction Technique on Mitragynine and 7-Hydroxymitragynine in Kratom (Molecules (Basel, Switzerland) · 2026Article
- A review on Mitragyna alkaloids pharmacology, biosynthesis and biotechnological insights.Journal, genetic engineering & biotechnology · 2026Review
- Seasonal and Organ-Specific Variations of Alkaloids inPlants (Basel, Switzerland) · 2026Article
- Optimizing the Soil Calcium:Magnesium Ratio Improves the Mitragynine Yield and Seedling Growth in Kratom (Plants (Basel, Switzerland) · 2026Article
- DNA Barcoding and Chemical Profile Using UHPLC, GC-MS and LC-MS/QTOF ofPlants (Basel, Switzerland) · 2026Article
- Elevated 7-Hydroxymitragynine Levels Found in Products Misbranded as Kratom.Journal of AOAC International · 2026Article
- Comparative analysis of monoterpene indole alkaloid composition and genotypic variation in ThaiFrontiers in plant science · 2026Article
- Observational real-world analysis of dose-dependent effects ofFrontiers in pharmacology · 2026Article
- Seasonal, Organ-, and Location-Dependent Variations in the Alkaloid Content ofPlants (Basel, Switzerland) · 2025Article
- Kratom leaf extracts exert hypolipidaemic effects via the modulation of PCSK9 and LDLR pathways in HepG2 cells.Scientific reports · 2025Article
- Higher accumulation of mitragynine in Mitragyna speciosa (kratom) leaves affected by insect attack.PloS one · 2025Article
- Network Pharmacology, Molecular Docking, and In Vitro Insights into the Potential ofInternational journal of molecular sciences · 2024Article
- Effects of Itraconazole on Pharmacokinetics of Mitragynine and 7-Hydroxymitragynine in Healthy Volunteers.ACS pharmacology & translational science · 2024Article
- Kratom safety and toxicology in the public health context: research needs to better inform regulation.Frontiers in pharmacology · 2024Review
- Translating Kratom-Drug Interactions: From Bedside to Bench and Back.Drug metabolism and disposition: the biological fate of chemicals · 2023Review
- Examining the Psychoactive Differences between Kratom Strains.International journal of environmental research and public health · 2023Article
Corrections and comments
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Authors and funding
10 authors at 2 institutions in 1 country.
Funding
Abstract
The objective of this study was to obtain data on the distribution of alkaloids in kratom plants grown in Thailand. Two collections were performed, covering the southern, central, and northern regions of Thailand and different seasons. The contents of alkaloids, including mitragynine (MG), paynantheine (PAY), and speciogynine (SG), were determined using the validated HPLC method. The 134 samples in the first collection were collected from Nam Phu subdistrict, Ban Na San, Surat Thani, Thailand, during June and October 2019 and January 2020. The maximum mitragynine content was 4.94%
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.