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DHEA AND BPH

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https://www.readbyqxmd.com/read/26516352/metabolic-syndrome-and-benign-prostatic-hyperplasia-association-or-coincidence
#1
Aleksandra Rył, Iwona Rotter, Tomasz Miazgowski, Marcin Słojewski, Barbara Dołęgowska, Anna Lubkowska, Maria Laszczyńska
BACKGROUND: It has been suggested that individuals with metabolic syndrome (MetS) may be prone to developing benign prostatic hyperplasia (BPH), but the direction of causality remains uncertain. The objective of this cross-sectional study was to evaluate the association between BPH and MetS in men who were referred to surgery for BPH. We were interested in identifying the anthropometric, metabolic, and hormonal factors that potentially influence the risk of both conditions. METHODS: The study was conducted on 128 males with BPH and 141 without BPH (the control group)...
2015: Diabetology & Metabolic Syndrome
https://www.readbyqxmd.com/read/26400665/hormone-concentration-metabolic-disorders-and-immunoexpression-of-androgen-and-estrogen-alpha-receptors-in-men-with-benign-prostatic-hyperplasia-and-testosterone-deficiency-syndrome
#2
Aleksandra Ryl, Iwona Rotter, Marcin Slojewski, Barbara Dolegowska, Marta Grabowska, Irena Baranowska-Bosiacka, Maria Laszczynska
INTRODUCTION: A slight decrease in blood testosterone level in men is a physiological state associated with the aging. The aim of our study was to evaluate the occurrence of hormone and metabolic disorders, as well as the immunolocalization and immunoexpression of androgen receptors (AR) and estrogen-alpha receptors (ERa) in the prostates of men with benign prostatic hyperplasia (BPH) and coexisting testosterone deficiency syndrome (TDS). MATERIAL AND METHODS: The study involved 150 men, diagnosed with and receiving pharmacological treatment for BPH...
2015: Folia Histochemica et Cytobiologica
https://www.readbyqxmd.com/read/25939591/resveratrol-reduces-the-levels-of-circulating-androgen-precursors-but-has-no-effect-on-testosterone-dihydrotestosterone-psa-levels-or-prostate-volume-a-4-month-randomised-trial-in-middle-aged-men
#3
RANDOMIZED CONTROLLED TRIAL
Thomas Nordstrøm Kjaer, Marie Juul Ornstrup, Morten Møller Poulsen, Jens Otto Lunde Jørgensen, David Michael Hougaard, Arieh Sierra Cohen, Shadman Neghabat, Bjørn Richelsen, Steen Bønløkke Pedersen
BACKGROUND: Resveratrol is a naturally occurring polyphenol with purported inhibitory effects on prostate growth and cancer development. A number of studies have demonstrated that resveratrol reduces prostate growth in animal models and reduces prostate cell growth in vitro. Based on these pre-clinical findings, interest in resveratrol is increasing in relation to the management of benign prostate hyperplasia (BPH) and prostate cancer. So far, no human trials have evaluated the effects of resveratrol on circulating androgens, prostate size, or biochemical markers of prostate size...
September 2015: Prostate
https://www.readbyqxmd.com/read/24780080/inhibition-of-cox-2-mediated-eicosanoid-production-plays-a-major-role-in-the-anti-inflammatory-effects-of-the-endocannabinoid-n-docosahexaenoylethanolamine-dhea-in-macrophages
#4
Jocelijn Meijerink, Mieke Poland, Michiel G J Balvers, Pierluigi Plastina, Carolien Lute, Jvalini Dwarkasing, Klaske van Norren, Renger F Witkamp
BACKGROUND AND PURPOSE: N-docosahexaenoylethanolamine (DHEA) is the ethanolamine conjugate of the long-chain polyunsaturated n-3 fatty acid docosahexaenoic (DHA; 22: 6n-3). Its concentration in animal tissues and human plasma increases when diets rich in fish or krill oil are consumed. DHEA displays anti-inflammatory properties in vitro and was found to be released during an inflammatory response in mice. Here, we further examine possible targets involved in the immune-modulating effects of DHEA...
January 2015: British Journal of Pharmacology
https://www.readbyqxmd.com/read/16651392/expression-of-enzymes-involved-in-estrogen-metabolism-in-human-prostate
#5
Yasukazu Takase, Marie-Hélène Lévesque, Van Luu-The, Mohamed El-Alfy, Fernand Labrie, Georges Pelletier
There is evidence that estrogens can directly modulate human prostate cell activity. It has also been shown that cultured human prostate cancer LNCaP can synthesize the active estrogen estradiol (E2). To elucidate the metabolism of estrogens in the human prostate, we have studied the expression of enzymes involved in the formation and inactivation of estrogens at the cellular level. 17beta-Hydroxysteroid dehydrogenase (17beta-HSD) types 1, 2, 4, 7, and 12, as well as aromatase mRNA and protein expressions, were studied in benign prostatic hyperplasia (BPH) specimens using in situ hybridization and immunohistochemistry...
August 2006: Journal of Histochemistry and Cytochemistry: Official Journal of the Histochemistry Society
https://www.readbyqxmd.com/read/16502050/prostate-cancer-risk-the-significance-of-differences-in-age-related-changes-in-serum-conjugated-and-unconjugated-steroid-hormone-concentrations-between-arab-and-caucasian-men
#6
E O Kehinde, A O Akanji, A Memon, A A Bashir, A S Daar, K A Al-Awadi, T Fatinikun
INTRODUCTION: Factors responsible for the low incidence of clinical prostate cancer (3-8/100,000 men/year) in the Arab population remain unclear, but may be related to changes in steroid hormone metabolism. We compared the levels of serum conjugated and unconjugated steroids between Arab and Caucasian populations, to determine if these can provide a rational explanation for differences in incidence of prostate cancer between the two populations. PATIENTS/METHOD: Venous blood samples were obtained from 329 unselected apparently healthy indigenous Arab men (Kuwaitis and Omanis) aged 15-80 years...
2006: International Urology and Nephrology
https://www.readbyqxmd.com/read/14534735/in-vitro-evaluation-of-chemopreventive-agents-using-cultured-human-prostate-epithelial-cells
#7
X Steven Wan, Zhoazong Zhou, Ann R Kennedy, Levy Kopelovich
The effects of nine potential cancer chemopreventive agents on cell growth or clonogenic survival were evaluated in normal human prostate epithelial cells, an immortalized but non-tumorigenic human prostate epithelial cell line (267B1), a human benign prostatic hyperplasia (BPH) cell line (BRF-55T), and a human prostate cancer cell line (267B1/Ki-ras). Of the nine agents tested, 9-cis retinoic acid, liarozole fumarate, phenylenebis(methylene)-selenocyanate (p-XSC), and L-selenomethionine demonstrated much stronger growth inhibitory effects on prostate cancer cells than on the normal prostate epithelial cells, suggesting that these agents may be useful as prostate cancer chemopreventive agents...
November 2003: Oncology Reports
https://www.readbyqxmd.com/read/12088188/the-ageing-male
#8
REVIEW
C Schulman, B Lunenfeld
With prolonged life expectancy, men and women can expect to live one-third of their lives with some form of hormone deficiency. The ageing male, in particular, has the added problem of developing urological diseases, such as benign prostatic hyperplasia (BPH), prostate cancer, continence disorders and erectile dysfunction. When discussing age-related problems, it is often difficult to separate and to distinguish between the natural ageing process, ageing amplifiers and an acute or chronic illness, or inter-current diseases...
May 2002: World Journal of Urology
https://www.readbyqxmd.com/read/10906738/endocrine-patterns-in-patients-with-benign-and-malignant-prostatic-diseases
#9
G Schatzl, W J Reiter, T Thürridl, J Waldmüller, M Roden, S Söregi, S Madersbacher
BACKGROUND: The known importance of the endocrine system, particularly of steroid hormones, for development of the prostate gland and the fact that steroid hormones act as immunmodulators prompted us to compare hypophyseal, adrenal, and gonadal hormones, including cortisol, in patients with benign and malignant prostatic diseases. METHODS: Patients with newly diagnosed, untreated prostate cancer (PC) (n = 75) and, as a control population, those with untreated lower urinary tract symptoms (LUTS) due to benign prostatic hyperplasia (BPH) (n = 159) entered this prospective study...
August 1, 2000: Prostate
https://www.readbyqxmd.com/read/10067877/localization-of-type-5-17beta-hydroxysteroid-dehydrogenase-3beta-hydroxysteroid-dehydrogenase-and-androgen-receptor-in-the-human-prostate-by-in-situ-hybridization-and-immunocytochemistry
#10
M El-Alfy, V Luu-The, X F Huang, L Berger, F Labrie, G Pelletier
An important source of androgens in the human prostate are those synthesized locally from the inactive adrenal precursor dehydroepiandrosterone (DHEA) and its sulfated derivative DHEA-S. Three beta-HSD (hydroxysteroid dehydrogenase) converts DHEA into androstenedione (4-dione), whereas type 5 17beta-HSD catalyzes the reduction of 4-dione into testosterone in the human prostate and other peripheral intracrine tissues. In the present study, we have used two complementary approaches, namely in situ hybridization and immunocytochemistry, to identify the cells that contain the type 5 17beta-HSD messenger RNA and enzyme in human benign prostatic hyperplasia (BPH)...
March 1999: Endocrinology
https://www.readbyqxmd.com/read/9933837/effects-of-transurethral-prostate-resection-and-transurethral-laser-prostatectomy-on-plasma-hormone-levels
#11
COMPARATIVE STUDY
K Türkölmez, M Bozlu, K Sarica, H Gemalmaz, E Ozdiler, O Gögüş
OBJECTIVE: The short and long-term effects of two common transurethral procedures (TURP and TULP, transurethral prostatic resection and laser prostatectomy, respectively) on plasma hormone levels in patients with benign prostatic hyperplasia (BPH) have been evaluated. PATIENTS AND METHODS: Totally 57 patients with histologically proven BPH (age range 54-81 years, mean 62.5 years) were included into the study program. Of these 57 patients, 44 underwent TURP and 13 underwent TULP for treatment of their bladder outlet obstructions...
1998: Urologia Internationalis
https://www.readbyqxmd.com/read/9394847/serum-steroids-in-relation-to-benign-prostatic-hyperplasia
#12
P Lagiou, C S Mantzoros, A Tzonou, L B Signorello, L Lipworth, D Trichopoulos
In order to investigate the endocrine etiology of benign prostatic hyperplasia (BPH), we conducted a case-control study in Athens, Greece using 52 patients with histologically confirmed BPH and 52 healthy controls matched according to age and town of residence. Blood samples were collected from all participants and analyzed blindly in Boston, Mass. regarding testosterone (T), dihydrotestosterone, estradiol (E2), sex hormone-binding globulin, and dehydroepiandrosterone sulfate (DHEAS). Results from logistic regression models, adjusting for age, height, body mass index, years of schooling, and mutually among the measured hormones, indicate that DHEAS is significantly positively associated with the risk of BPH [odds ratio = 3...
November 1997: Oncology
https://www.readbyqxmd.com/read/9284188/the-role-of-cigarette-smoking-in-prostatic-enlargement
#13
B Küpeli, T Soygür, K Aydos, E Ozdiler, S Küpeli
OBJECTIVE: To investigate the association between cigarette smoking and sex hormone concentrations in men with benign prostatic hyperplasia (BPH) and thus provide some understanding of the underlying mechanism of the effects of cigarette smoking on prostatic enlargement. PATIENTS AND METHODS: The association between cigarette smoking and prostatic volume was investigated in 68 men with BPH (mean age 59 years, range 52-74) by assessing changes in serum levels of oestradiol, testosterone, dihydroepiandrosterone (DHEA) and dihydroepiandrosterone sulphate (DHEA-S)...
August 1997: British Journal of Urology
https://www.readbyqxmd.com/read/2807964/-the-effect-of-aminoglutethimide-on-steroid-synthesis-of-the-adrenal-gland-and-its-use-in-prostate-cancer
#14
H Knönagel, D Hauri
Following the hypothesis of depressing adrenal androgens in patients with relapsed prostatic carcinoma using Aminoglutethimide (AG), we performed a prospective study during three years, beginning in 1983. Twenty orchiectomized men aged 61-83 (mean 77) with progressive prostate carcinoma stage D2 (T0-4 Nx M1) were included. They received 4 x 250 mg AG and 50 mg cortisone daily. Overall response, according to NPCP-criteria, was 30% after 3 months (1 patient with partial remission and 5 patients stable), and at the end of trial 1 patient (5%) remained stable and 7 (65%) had progression...
August 1989: Helvetica Chirurgica Acta
https://www.readbyqxmd.com/read/2441144/17-beta-hydroxysteroid-dehydrogenase-in-the-human-prostate-properties-and-distribution-between-epithelium-and-stroma-in-benign-hyperplastic-tissue
#15
W Bartsch, J Greeve, K D Voigt
In order to delineate differences in the mechanism of androgen action in epithelium (E) and stroma (S) of the human prostate, we studied the 17 beta-hydroxysteroid dehydrogenase (17 beta-HSDH) in these tissues of benign prostatic hyperplasia (BPH). Tissue was obtained by suprapubic prostatectomy. E and S were separated; samples were homogenized in buffer and incubated with [3H] steroids (4-androstenedione (Ae), estrone (E1), or dehydroepiandrosterone (DHEA] and NADH (4.2 mmol/l) as cosubstrate for 60 min at 37 degrees C...
July 1987: Journal of Steroid Biochemistry
https://www.readbyqxmd.com/read/2418430/concentrations-of-3-beta-hydroxy-androgens-in-epithelium-and-stroma-of-benign-hyperplastic-and-normal-human-prostate
#16
W Bartsch, I Kozák, P Gorenflos, H Becker, K D Voigt
Androgen metabolites with 3 beta-hydroxy configuration--ie, dehydroepiandrosterone (3 beta-hydroxy-5-androsten-17-one, DHEA), 5-androstene-3 beta-17 beta-diol (A-Diol), and 5 alpha-androstane-3 beta, 17 beta-diol (3 beta-Diol)--were measured by radioimmunoassay in the homogenate, in the mechanically separated epithelium and stroma, and in the nuclear fractions of epithelium and stroma of benign hyperplastic (BPH) and normal human prostatic tissue, in muscle homogenates and in plasma. The main results were: 1) Mean prostatic DHEA, A-Diol and 3 beta-Diol were 6-7 times as high as plasma values (1 g = 1 ml)...
1986: Prostate
https://www.readbyqxmd.com/read/63468/androgens-in-patients-with-benign-prostatic-hyperplasia-before-and-after-prostatectomy
#17
A Vermeulen, W De Sy
Plasma androgens [testosterone (T), 17beta-hydroxy-5alpha-androstan-3-one (DHT), androst-4-en-3,17 dione(A), and dehydroepiandrosterone (DHEA)] as well as 17 hydroxyprogesterone were measured in a group of patients (age 60-80 yrs.) with benign prostatic hyperplasia (BPH) just before prostatectomy and compared to values obtained in subjects of similar age without signs of BPH. The most important difference was observed in the mean DHT level which was significantly (P less than 0.025) higher than in the control group; mean T and free testosterone levels in BPH patients were slightly higher (P less than 0...
December 1976: Journal of Clinical Endocrinology and Metabolism
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