Synthetic Cannabinoid JWH-018 Damaged Sperm in Rats, but Recovery Occurred by 45 Days
The synthetic cannabinoid JWH-018 caused significant sperm damage, reduced testosterone, and testicular tissue degeneration in rats within days, but spermatogenesis partially recovered 45 days after cessation.
Quick Facts
What This Study Found
JWH-018 (0.3 mg/kg for 9 days) caused significantly decreased sperm concentration, motility, and membrane integrity, reduced testosterone, increased abnormal sperm morphology, and seminiferous tubule degeneration. At 45 days post-treatment, sperm concentration, motility, and testosterone increased, suggesting partial recovery of spermatogenesis.
Key Numbers
30 rats; 0.3 mg/kg JWH-018 for 9 days; decreased sperm concentration, motility, and testosterone at day 2; partial recovery at day 45; increased oxidative stress markers
How They Did This
30 male CD-1 rats in 6 groups: control, ethanol vehicle, and JWH-018, each evaluated at 2 days or 45 days after the last injection. Sperm parameters, testosterone, oxidative stress markers, and testicular histopathology assessed.
Why This Research Matters
Synthetic cannabinoids are widely used by young adults. This study provides evidence that JWH-018 damages male reproductive function but, reassuringly, that some recovery occurs after cessation.
The Bigger Picture
As synthetic cannabinoid use continues, understanding reproductive effects is important for young men. The recovery finding is somewhat reassuring but the extent of permanent damage remains unclear.
What This Study Doesn't Tell Us
Animal study with a single JWH-018 dose for 9 days. Human use patterns may differ significantly. Only 5 rats per group limits statistical power. Recovery at 45 days may be partial, not complete.
Questions This Raises
- ?Does longer or higher-dose JWH-018 exposure cause irreversible damage?
- ?Do other synthetic cannabinoids produce similar reproductive effects?
Trust & Context
- Key Stat:
- Sperm damage occurred in days; partial recovery by day 45
- Evidence Grade:
- Small animal study (5 per group) with clear results but limited by sample size and single dose/duration.
- Study Age:
- Published in 2022
- Original Title:
- Effects of synthetic (JWH-018) cannabinoids treatment on spermatogenesis and sperm function.
- Published In:
- Drug and chemical toxicology, 45(1), 215-222 (2022)
- Database ID:
- RTHC-04090
Evidence Hierarchy
Tests effects in animals (usually mice or rats), not humans.
What do these levels mean? →Frequently Asked Questions
Do synthetic cannabinoids affect male fertility?
In rats, JWH-018 significantly reduced sperm concentration, motility, and testosterone while causing testicular tissue damage. Some recovery occurred 45 days after stopping the drug.
Is the sperm damage permanent?
This study found partial recovery of sperm parameters and testosterone levels 45 days after stopping JWH-018 treatment, suggesting some damage is reversible. However, the extent of permanent effects is unclear.
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Cite This Study
https://rethinkthc.com/research/RTHC-04090APA
Mutluay, Duygu; Güngör, Şükrü; Tenekeci, Gözde Yücel; Köksoy, Serkan; Çoban, Cennet Sinem. (2022). Effects of synthetic (JWH-018) cannabinoids treatment on spermatogenesis and sperm function.. Drug and chemical toxicology, 45(1), 215-222. https://doi.org/10.1080/01480545.2019.1680686
MLA
Mutluay, Duygu, et al. "Effects of synthetic (JWH-018) cannabinoids treatment on spermatogenesis and sperm function.." Drug and chemical toxicology, 2022. https://doi.org/10.1080/01480545.2019.1680686
RethinkTHC
RethinkTHC Research Database. "Effects of synthetic (JWH-018) cannabinoids treatment on spe..." RTHC-04090. Retrieved from https://rethinkthc.com/research/mutluay-2022-effects-of-synthetic-jwh018
Access the Original Study
Study data sourced from PubMed, a service of the U.S. National Library of Medicine, National Institutes of Health.
This study breakdown was produced by the RethinkTHC research team. We analyze and report published research findings without making health recommendations. All interpretations are based solely on the published abstract and study data.