chaso36 speaks almost exactly for my statistics. Mine stayed between 3.8 and 4.2 for probably 10 years, before jumping to 7.6 in 4 months. With now a history of prostate cancer in the family (you), it is even more likely that he is susceptile to it. My doc said if mine were biopsied 2 years ago, most likely it would have come back negative. I would recommend your brother get to a regular Urologist, if he hasn't and get some good numbers from a credible lab to check...With your cancer the odds have greathly increased his susceptability to it, along with anyone else in the family.
4/19/07 PSA 7.6 , referred to Urologist
4/26/07 Urologist prescribes 3 weeks of antibiotics/anti-inflam. due to past history of Prostatis. DRE- nothing detected but 'gross enlargement"
6/5/07 Recheck of PSA: 6.7, biopsy scheduled.
7/11/07 Biopsy- 16 core samples, ultrasound size of gland around 76 cc.
7/17/07 Pathlogy report: 3 of 16 cancerous/ 5% involved, left lobe top, center, bottom, Gleason 3/3:6.
8/3/07 Decision made for conventional RP surgery, scheduled for Sept. 24.
9/24/07 Conventional open surgery performed, awaiting Pathology report. and 10 days for cathater removal