Systematic characterization of human prostatic fluid proteins with two-dimensional electrophoresis.

1984 ◽  
Vol 30 (12) ◽  
pp. 2026-2030 ◽  
Author(s):  
Y C Tsai ◽  
H H Harrison ◽  
C Lee ◽  
J A Daufeldt ◽  
L Oliver ◽  
...  
Keyword(s):  
Benign Prostatic Hyperplasia ◽  
Serum Proteins ◽  
Prostatic Hyperplasia ◽  
Affinity Column ◽  
Two Dimensional ◽  
Differential Analysis ◽  
Protein Patterns ◽  
Prostatic Fluid ◽  
Serum Components

Abstract We present a systematic analysis of human prostatic fluid with two-dimensional gel electrophoresis (the ISO-DALT system) and a characterization of normal and disease-related protein patterns. A reference map for prostatic fluid proteins was established by analysis of pooled prostatic fluids from 80 men (age less than or equal to 50 years) without prostatic lesions. Proteins in prostatic fluid that share immunogenicity with serum proteins were identified by use of antibody to whole human-serum protein in an affinity-column fractionation of a reference pool and differential analysis of the absorbed (serum components) and unabsorbed (non-serum components) fractions. Individual prostatic fluids from 30 patients (eight with prostatic cancer, 10 with prostatitis and benign prostatic hyperplasia, six with benign prostatic hyperplasia alone, and six with asymptomatic chronic prostatitis) were scored qualitatively with respect to the presence or absence of 57 major prostatic fluid proteins. Statistically significant, disease-correlated alterations were observed for at least eight of the proteins so scored.

Enhancement techniques for detecting trace and fluid-specific components in two-dimensional electrophoresis patterns.

1982 ◽  
Vol 28 (4) ◽  
pp. 759-765 ◽  
Author(s):  
G B Dermer ◽  
L M Silverman ◽  
J F Chapman
Keyword(s):  
Cerebrospinal Fluid ◽  
Serum Proteins ◽  
Prostatic Acid Phosphatase ◽  
Two Dimensional ◽  
Cibacron Blue ◽  
Two Dimensional Electrophoresis ◽  
Prostatic Fluid ◽  
Creatine Kinase B ◽  
Malignant Effusions ◽  
Dimensional Electrophoresis

Abstract Albumin and other serum-derived proteins were removed from several types of body fluids by affinity chromatography, to facilitate detection of trace or non-serum-derived proteins in two-dimensional electrophoresis patterns. Albumin was removed by the dye Cibacron Blue F3G-A coupled to Sepharose. Two-dimensional patterns of albumin-depleted serum lack the large albumin spot, and several families of spots become visible that ordinarily are partly or totally hidden by it. However, other proteins also bind to Cibacron Blue. Most serum proteins, including albumin, were effectively removed by anti-human serum antibodies coupled to Sepharose. Two-dimensional patterns of serum-depleted cerebrospinal fluid exhibit five clusters of probable nervous-system protein families not detected in serum. One additional family, probably antigenically related to transferrin, was removed by the affinity step. Two-dimensional patterns of serum-depleted prostatic fluid exhibit five major non-serum families, two of which may be creatine kinase B subunits and prostatic acid phosphatase. Two-dimensional patterns of serum-depleted malignant effusions exhibit one or more of three proteins that possibly are tumor products. Pattern matching suggests the presence of one non-serum-derived protein family common to cerebrospinal fluid, prostatic fluid, and malignant effusions. Prostatic fluid and malignant effusions have in common as many as three non-serum families of proteins.

scholarly journals Reproductive and endocrinological effects of Benign Prostatic Hyperplasia and finasteride therapy in dogs

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Daniel S. R. Angrimani ◽  
Maíra M. Brito ◽  
Bruno R. Rui ◽  
Marcílio Nichi ◽  
Camila I. Vannucchi
Keyword(s):  
Benign Prostatic Hyperplasia ◽  
Semen Quality ◽  
Clinical Signs ◽  
Negative Influence ◽  
Prostatic Hyperplasia ◽  
Reproductive Disorders ◽  
Short Term ◽  
Prostatic Fluid ◽  
Therapeutic Measures ◽  
Breeding Soundness

Abstract Benign prostatic hyperplasia (BPH) is one of the most important reproductive disorders in aging dogs. Therapeutic measures include orchiectomy and pharmacological treatment, leading to reduction of prostate volume and clinical signs. One of the most common drugs used in BPH treatment is finasteride, but data regarding its possible side effects are scarce. Thus, the aim of this study was to evaluate the effects of BPH and short-term (2 months) finasteride therapy on clinical, endocrinological, and reproductive parameters in dogs. Dogs were allocated into four experimental groups: Non-affected (n = 5), BPH (n = 5), Non-Affected-Finasteride (n = 5) and BPH-Finasteride (n = 5) groups. Dogs were evaluated monthly during 2 months by a complete breeding soundness examination, B-mode ultrasound and Doppler ultrasonography of the testicular artery, hormonal profile (testosterone, estrogen and dihydrotestosterone) and oxidative profile of the prostatic fluid. After 2 months, dogs were gonadectomized and testicles were subjected to histologic analysis. Finasteride treatment reduced dihydrotestosterone concentrations, without negative influence on semen quality and also reverted testicular hemodynamics changes of BPH. On the other hand, BPH was accompanied by significant changes in testosterone and estrogen concentrations and semen quality, mainly related to sperm kinetics alterations. In conclusion, BPH dogs have important hormonal and sperm alterations, however, short-term finasteride treatment (2 months) was able to reduce overall effects of BPH, thus representing a method of therapy for BPH treatment.

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