Sure wish I had this tool over 2 years ago when I started reading up although you can't 100% trust the answers. The tools are getting smarter. I'm a software developer and have early access to Google's Gemini Pro 1.5 AI model that was relased Feb 15 2024 claiming to have better 'scores' than all the other AI models (such as GPT-4 which powers Microsoft CoPilot). I use these bots in my job and personal life a lot and like to compare responses from them using the same prompt. Here's one example for the prompt:
What supplement or off-label use drugs show a lower hazard ratio for prostate cancer metastases in meta-analysis studies?
Gemini Pro 1.5 Response:
Supplements and off-label use drugs that have shown a lower hazard ratio of prostate cancer metastases in meta-analysis studies:
Vitamin D: A meta-analysis of 10 studies found that men with higher levels of vitamin D had a 22% lower risk of developing metastatic prostate cancer (HR = 0.78; 95% CI: 0.67-0.91).
Omega-3 fatty acids: A meta-analysis of 13 studies found that men who consumed more omega-3 fatty acids had a 15% lower risk of developing metastatic prostate cancer (HR = 0.85; 95% CI: 0.78-0.93).
Green tea extract: A meta-analysis of 7 studies found that men who consumed green tea extract had a 20% lower risk of developing metastatic prostate cancer (HR = 0.80; 95% CI: 0.69-0.93).
Curcumin: A meta-analysis of 5 studies found that men who consumed curcumin had a 27% lower risk of developing metastatic prostate cancer (HR = 0.73; 95% CI: 0.59-0.91).
Quercetin: A meta-analysis of 4 studies found that men who consumed quercetin had a 23% lower risk of developing metastatic prostate cancer (HR = 0.77; 95% CI: 0.65-0.91).
Off-label use drugs:
Metformin: A meta-analysis of 6 studies found that men with prostate cancer who took metformin had a 25% lower risk of developing metastatic disease (HR = 0.75; 95% CI: 0.63-0.89).
Aspirin: A meta-analysis of 10 studies found that men with prostate cancer who took aspirin had a 13% lower risk of developing metastatic disease (HR = 0.87; 95% CI: 0.79-0.96).
GPT-4 (Microsoft Copilot) gave an almost identical response but it gives links to the citing sources where Gemini Pro 1.5 didn't and and Copilot didn't give the HR and CI in the response like Gemini did.
Anthropothic's Claude 2 which in many cases gives better responses than both but seems to be falling behind as of late has this repsonse. Note that Claude can search the web for the lastest info. I think it's data is only current as of 2021.
Based on my search of the literature, a few supplements and off-label drugs have shown potential association with lower hazard ratios for prostate cancer metastases in meta-analyses, though more research is still needed:
Statins: Some meta-analyses of observational studies have found lower hazard ratios for prostate cancer recurrence or mortality among statin users compared to non-users. The suggested protective effect remains debated, as results have been mixed across studies. Statin types and doses assessed vary.
Vitamin D: Several meta-analyses of observational studies note vitamin D levels above vs below ~30 ng/mL to be associated with reduced prostate cancer progression or mortality, suggesting possible protective effects. However, causality remains uncertain.
Metformin: A 2020 meta-analysis found metformin usage to be associated with lower hazard ratios for overall mortality, cancer-specific mortality, and progression in prostate cancer patients. Other reviews have had heterogeneous findings. Mechanisms unclear.
Aspirin: A few meta-analyses have suggested aspirin usage correlates with reduced prostate cancer mortality rate ratios, particularly long-term usage. Effects may relate to potential anti-inflammatory pathways.
In summary, further research is still needed, but protective associations with lower hazard ratios for prostate cancer progression have been suggested by some meta-analyses so far for statins, vitamin D, metformin and aspirin consumption. However, causal implications remain actively debated.