Friday, November 27, 2009

Androgens and other hormones in CPPS

As earlier mentioned good studies are lacking, but there is agreement that total/free testosterone levels are lower than in comparable healthy men. There is little data but Dimitrakov et al.(1) measured levels of various hormones and androgens in a small study (27 patients, 29 controls). The data was pretty disparate but the following was found (unless otherwise noted all values are medians):

Progesterone (ref 13-97) varied greatly between individuals with a median value of 26 ng/dl (controls were <3).

Corticosterone (ref 100-700) was significantly lower. 40 ng/dl with 75% <75 (yes it is a correct transcription). Controls 141.

Aldosterone (ref 20-90) was also significantly lower. 18 pg/ml with 75% <64. Controls 61. It did also correlate with NIH-CPSI pain scores.

11-deoxycortisol (20-130) was lower. 12 ng/dl, although controls also were pretty low at 31.

Androstenedione (50-250) was higher. 126 ng/dl vs. 73.

Total testosterone (260-1000) was low. 60 ng/dl (25-75 percentile was 37 and 79) as has previously been reported.

Unfortunately no free testosterone and SHBG is given so we do not know if free testosterone also is low. The control group was hypogonadal unless the reported median (8, 25 percentile 1!! and 75th percentile 402) is wrong. The authors then draw an unwarranted conclusion that the testosterone value is significantly higher, which gives the wrong impression that it is normal instead of hypogonadal. The problem is their controls, why have some almost zero testosterone? Did some have prostate cancer?

Other measured hormones show no difference (DHEA, DHEAS, estradiol, cortisol, 17-dehydrocortisol). LH, FSH, SHBG, prolactin were not measured. Although a new study show blunted adrenocorticotropin response compared with controls.(2) The authors suggest the values indicate reduced activity of CYP21A2 (p450c21) and non-classical congenital adrenal hyperplasia. It would surely be very interesting if they also tested the subjects genes for CYP21 polymorphisms.(5) (Is acne more common in CPPS sufferers? A possible but controversial causality has been suggested.(4))

Regarding cortisol levels another small study showed small differences in awakening response between CPPS patients and controls. CPPS patients had a slightly slower drop-off -- lesser slope and thus a greater area under the curve from the awakening peak until about three hours after. Increased cortisol is associated with pain (or stress) so this may just indicate that the CPPS patients have pain, are stressed in general by the condition or by some incidental cause (e.g. social situation or undiagnosed rheumatic condition). As patients and controls were not fully comparable in education and socioeconomic status (e.g. 5 controls out of 20 had never married vs 18 CPPS, 1 control was divorced vs 5 CPPS, 1 control was on disability or unemployed and not student vs 7 CPPS) the finding may have been spurious and not related to CPPS as the authors concluded.(3)

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(1) Dimitrakov J, Joffe HV, Soldin SJ, Bolus R, Buffington CA, Nickel JC. Adrenocortical hormone abnormalities in men with chronic prostatitis/chronic pelvic pain syndrome. Urology 71(2):261-266, 2008.
(2) Anderson RU, Orenberg EK, Morey A, Chavez N, Chan CA. Stress induced HPA axis responses and disturbances in psychological profiles in men with CP/CPPS. J Urol, Sep 15, 2009 epub ahead of print.
(3) Anderson RU, Orenberg EK, Chan CA, Morey A, Flores V. Psychometric profiles and HPA axis function in men with CP/CPPS. J Urol 179:956-960, 2008.
(4) Thalmann S, Meier CA. Acne and ‘Mild’ Adrenal Hyperplasia. Dermatology 213:277-278, 2006.
(5) Admoni O, Israel S, Lavi I, Gur M, Tenenbaum-Rakover Y. Hyperandrogenism in carriers of CYP21 mutations: the role of genotype. Clin Endocrinol (Oxf). 64(6):645-51, 2006.
NCAH review: Speiser PW. Nonclassic adrenal hyperplasia. Rev Endocr Metab Disord. 2009 Mar;10(1):77-82.

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