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Updated: Jun 26, 2026

A Bioluminescent and Fluorescent Orthotopic Syngeneic Murine Model of Androgen-dependent and Castration-resistant Prostate Cancer
Published on: March 6, 2018
[Effects by androgen suppression with luteinizing hormone on cognitive functions in men treated for cancer of
1Service de neurologie, centre hospitalier de la Rochelle, Poitiers, France.
Objective:
To evaluate secondary effects on cognitive functions as memory and attention impairments in men treated by androgen suppression for cancer of prostate.
Material And Methods:
A prospective study on men treated with luteinizing hormone-realising hormone analogues (LH-RH analogues) for cancer of prostate was designed. Eighteen men were evaluated with cognitive tests as Mini Mental State (MMS), memory evaluation (Grober-Buschke, Rey Test), attention and executive test (Trail Making Test and Montgomery Asberg Depression Rating Scale [MADRS]) before beginning androgen suppression. Base line pretreatment assessments of every patient were compared with similar tests after six and 12 months of hormone therapy.
Results:
On 18 patients, 14 were eligible with pretreatment-median PSA of 22ng/ml (13-659), testosterone of 477ng/dl (398-583), which decreased to 1 and 37ng/dl, respectively. Visual-memory test (Rey test) was significantly improved at M6 (p: 0,001) and M12 (p: 0,02) as was the inversed number-memory test (WAIS) after M6 of androgen suppression and (p: 0,03).
Conclusion:
After 12 months of androgen suppression, global cognitive performances were preserved. Our results failed to observe impairment of cognitive function. This deserves more important prospective study.
Insights
Androgen suppression therapy for prostate cancer did not impair cognitive functions like memory and attention in men. Visual memory and number memory tests showed significant improvements after 12 months of treatment.
Area of Science:
- Oncology
- Neuroscience
- Endocrinology
Background:
- Prostate cancer treatment often involves androgen suppression therapy.
- Potential side effects of androgen suppression on cognitive functions require investigation.
Purpose of the Study:
- To evaluate the impact of androgen suppression on cognitive functions, specifically memory and attention, in men with prostate cancer.
Main Methods:
- A prospective study involving 18 men treated with luteinizing hormone-releasing hormone (LH-RH) analogues for prostate cancer.
- Cognitive assessments including Mini Mental State (MMS), memory tests (Grober-Buschke, Rey Test), and attention/executive tests (Trail Making Test, MADRS) were conducted before and at 6 and 12 months post-treatment.
Main Results:
- 14 patients were eligible for analysis.
- Visual memory (Rey Test) significantly improved at 6 and 12 months (p<0.001, p<0.02).
- Inversed number memory (WAIS) also improved after 6 months (p<0.03).
Conclusions:
- Androgen suppression therapy for prostate cancer did not lead to cognitive impairment over 12 months.
- Global cognitive performance was preserved, with some aspects of memory showing improvement.
- Further larger prospective studies are warranted.
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