scholarly journals SERUM PROSTATE SPECIFIC ANTIGEN (PSA);

2012 ◽  
Vol 20 (01) ◽  
pp. 017-022
Author(s):  
ZEHRA NAZ ◽  
SAADIA ANJUM, ◽  
MEHDI RAZA
Keyword(s):  
Prostate Specific Antigen ◽  
Specific Antigen ◽  
Age Groups ◽  
Normal Subjects ◽  
Serum Prostate Specific Antigen ◽  
Reductase Inhibitors ◽  
Carcinoma Prostate ◽  
Significant Difference ◽  
Data Source ◽  
Total Psa

ABSTRACT… Objective: To study correlation between age-linked serum prostate specific antigen (PSA) levels in normal subjects andpatients of benign prostatic hyperplasia (BPH) and carcinoma prostate (CaP). Data source: OPDs. Study design: Case-control study.Setting: SIUT; Karachi Study duration: Six months. Methodology: 250 subjects were enrolled for the study and 93 were finally selected(31 each, representing the normal, BPH and CaP groups). Subjects 40 years of age and above were included and those with any urinarytract disorder or those under treatment with 5-á-reductase inhibitors were excluded. Each group was divided into four sub-groups of ages40 – 49, 50 – 59, 60 – 69 and 70 and above years. AxSYM total PSA (tPSA) assay® was used for serum PSA estimation. Values wereexpressed as mean and standard error of mean and Fischer’s test, students’ t test and correlation coefficient were used to determinesignificance and for comparison of data. Results: There was a no significant difference in PSA levels in all age groups when normals werecompared with BPH cases. PSA levels were significant in normal as compared to CaP cases and BPH as compared to CaP. Conclusions:No significant correlation between age-linked serum PSA levels in normal subjects and patients of BPH and CaP could be established. Thestudy, however, found a trend of declining PSA levels at the age of 70 years and above.

scholarly journals Role of Serum Total PSA (Prostate Specific Antigen) and Free to Total PSA Ratio in the Diagnosis of Carcinoma Prostate

2013 ◽  
Vol 4 (1) ◽  
pp. 21-26
Author(s):  
S Ferdousi ◽  
MA Alim ◽  
Z Ferdous ◽  
A Khatun ◽  
N Sultana ◽  
...  
Keyword(s):  
Prostate Specific Antigen ◽  
Prostatic Carcinoma ◽  
Specific Antigen ◽  
Total Serum ◽  
Serum Prostate Specific Antigen ◽  
Medical College ◽  
Carcinoma Prostate ◽  
Total Psa ◽  
Total Ratio

The objective of the study was to evaluate and compare the role of total and free/total ratio of serum prostate specific antigen level in diagnosing carcinoma prostate. A cross sectional study was conducted at the Department of Biochemistry, Dhaka Medical College (DMC) with collaboration of the Department of Urology, Dhaka Medical College Hospital (DMCH), Dhaka from July 2008 to June 2009. This study was carried out on 60 patients above 50 years of age who attended the Department of Urology, Dhaka Medical College Hospital, complaining of irritative or obstructive lower urinary tract symptoms (LUTS) suspected as clinically benign prostatic hyperplasia (BPH) or cancer prostate. It was aimed to assess the role of total and free/total ratio of serum PSA in diagnosis of BPH and carcinoma prostate with reference to histological diagnosis. All the cases were evaluated by history, physical examination including digital rectal examination, serum prostate specific antigen level, transabdominal/ trans-rectal ultra- sonogram. From all patients, blood sample were collected before digital rectal examination or any per urethral manipulation. Final diagnosis was obtained by histo-pathological examination, specimen being obtained by perrectal biopsy with biopsy-gun. Histopathological examination detected prostate cancer in 20 out of 60 patient and 17 of these Cap 20 have a total PSA ? 4 ng/ml and only 3 have total PSA ? 4 ng/ml. 18 of these 20 have free to total ratio ?0.16 and 02 have f/t ratio ?0.16. Among 60 patients, 40 patients were detected BPH on histopathological diagnosis. 20 of these BPH patient have tPSA ? 4 ng/ml and 20 of BPH have tPSA ? 4 ng/ml. 38 of 40 BPH patient have f/t ratio >0.16 and 2 of 40 patient are f/t ratio ?0.16. Receiver operating characteristic analysis indicated a threshold f/t ratio ? 0.16 was optimum discriminatory level. The sensitivity of total serum PSA (at cut off value of >4 ng/ml) in correctly differentiating prostatic carcinoma of those who have the condition is 85%, while the specificity of the test in correctly detecting those who do not have the disease is 50%. The PPV is 45.9%, NPV is 87% and accuracy is 61.7%. The sensitivity of free/total serum PSA (at cut off value of 0.16 ng/ml) in correctly differentiating prostatic carcinoma from BPH is 90%, while the specificity of the test in correctly detecting those who do not have prostatic carcinoma is 95%. The PPV of the test is 90% and the NPV of the test is 95%. The overall accuracy of the test is 93.3%. This study showed significant difference of total and free/total ratio of serum prostate specific antigen (PSA) in differentiating benign prostatic hyperplasia (BPH) from carcinoma prostate. Receiver operating characteristic curves showed advantage for the f/t PSA ratio when compared with total PSA in detecting prostate cancer. From the study it may be concluded that total and f/t ratio of prostate specific antigen (PSA) is a useful marker in diagnosis of carcinoma prostate. Free/total ratio is more accurate than total PSA. DOI: http://dx.doi.org/10.3329/bjmb.v4i1.13778 Bangladesh J Med Biochem 2011; 4(1): 21-26

scholarly journals Age-specific serum prostate-specific antigen references range among healthy men in Port Harcourt, Nigeria: a retrospective hospital-based study

2018 ◽  
Vol 6 (2) ◽  
pp. 417
Author(s):  
Collins Amadi ◽  
Ehimen P. Odum
Keyword(s):  
Prostate Specific Antigen ◽  
Reference Range ◽  
Specific Antigen ◽  
Age Groups ◽  
Specific Reference ◽  
P Value ◽  
Healthy Men ◽  
Port Harcourt ◽  
Prostatic Diseases ◽  
Total Psa

Background: Total prostate-specific antigen (PSA) levels increase with advancing age. Its age-specific ranges are being advocated to increase its sensitivity and specificity. This study was aimed to examine the relationship between total PSA levels and age, and to determine the age-specific ranges among healthy men without prostatic diseases in our environment.Methods: In this retrospective hospital-based study, records of men without prostatic diseases who had visited University of Port Harcourt Teaching Hospital for routine screening for prostate cancer using serum total PSA between 1st January 2012 and 31st December 2016 were retrieved and analyzed using descriptive statistics and Spearman’s correlation test. A p-value < 0.05 was considered significant.Results: Records of 476 men aged 38 to 86 years were recruited for the study. The age-specific total PSA reference range using the 95th percentile total PSA concentration values in each 10year groups were 0-1.60, 0-4.93, 0-6.93, 0-7.80, 0-9.65, and 0-13.30 for the age groups 30-39, 40-49, 50-59, 60-69, 70-79 and >80years respectively. There was a positive correlation between serum PSA concentration and age (rs = 0.395; p<0.001).Conclusions: Total PSA increases with advancing age and its age-specific reference range in this study are similar to findings in our environment but higher than the values found in other parts of the world. We suggest serum PSA normal reference values should be characterized by age and race in our environment.

Lack of Effect of a Low-Fat, High-Fruit, -Vegetable, and -Fiber Diet on Serum Prostate-Specific Antigen of Men Without Prostate Cancer: Results From a Randomized Trial

2002 ◽  
Vol 20 (17) ◽  
pp. 3592-3598 ◽  
Author(s):  
Moshe Shike ◽  
Lianne Latkany ◽  
Elyn Riedel ◽  
Martin Fleisher ◽  
Arthur Schatzkin ◽  
...  
Keyword(s):  
Prostate Cancer ◽  
Prostate Specific Antigen ◽  
Fruits And Vegetables ◽  
Dietary Intervention ◽  
Specific Antigen ◽  
Intervention Group ◽  
Control Group ◽  
Serum Prostate Specific Antigen ◽  
Significant Difference ◽  
The Individual

PURPOSE: To determine whether a diet low in fat and high in fruits, vegetables, and fiber may be protective against prostate cancer by having an impact on serial levels of serum prostate-specific antigen (PSA). METHODS: Six hundred eighty-nine men were randomized to the intervention arm and 661 to the control arm. The intervention group received intensive counseling to consume a diet low in fat and high in fiber, fruits, and vegetables. The control group received a standard brochure on a healthy diet. PSA in serum was measured at baseline and annually thereafter for 4 years, and newly diagnosed prostate cancers were recorded. RESULTS: The individual PSA slope for each participant was calculated, and the distributions of slopes were compared between the two groups. There was no significant difference in distributions of the slopes (P = .99). The two groups were identical in the proportions of participants with elevated PSA at each time point. There was no difference in the PSA slopes between the two groups (P = .34) and in the frequencies of elevated PSA values for those with elevated PSA at baseline. Incidence of prostate cancer during the 4 years was similar in the two groups (19 and 22 in the control and intervention arms, respectively). CONCLUSION: Dietary intervention over a 4-year period with reduced fat and increased consumption of fruits, vegetables, and fiber has no impact on serum PSA levels in men. The study also offers no evidence that this dietary intervention over a 4-year period affects the incidence of prostate cancer during the 4 years.

The Interpretation of Serum Prostate Specific Antigen in Men Receiving 5α-Reductase Inhibitors: A Review and Clinical Recommendations

2006 ◽  
Vol 176 (3) ◽  
pp. 868-874 ◽  
Author(s):  
Leonard S. Marks ◽  
Gerald L. Andriole ◽  
John M. Fitzpatrick ◽  
Claude C. Schulman ◽  
Claus G. Roehrborn
Keyword(s):  
Prostate Specific Antigen ◽  
Specific Antigen ◽  
Clinical Recommendations ◽  
Serum Prostate Specific Antigen ◽  
Reductase Inhibitors

Correlation of serum prostate specific antigen levels and bone scintigraphy in carcinoma prostate

1994 ◽  
Vol 67 (797) ◽  
pp. 469-471 ◽  
Author(s):  
R Oommen ◽  
F S Geethanjali ◽  
G Gopalakrishnan ◽  
N Chacko ◽  
S John ◽  
...  
Keyword(s):  
Prostate Specific Antigen ◽  
Bone Scintigraphy ◽  
Specific Antigen ◽  
Serum Prostate Specific Antigen ◽  
Carcinoma Prostate

scholarly journals A STUDY ON CORRELATION OF SERUM PROSTATE SPECIFIC ANTIGEN WITH CLINICAL AND PATHOLOGICAL VARIABLES IN PATIENTS OF PROSTATOMEGALY

2021 ◽  
Vol 5 (10) ◽  
Author(s):  
Sanjay Patidar ◽  
Kritika Kamal ◽  
Jaydip Sinh Kathota ◽  
Sudhanshu Tiwari ◽  
Prashant Nakrani
Keyword(s):  
Prostate Cancer ◽  
Prostate Specific Antigen ◽  
Cancer Detection ◽  
Specific Antigen ◽  
Digital Rectal Examination ◽  
Age Group ◽  
Rectal Examination ◽  
Carcinoma Prostate ◽  
Total Psa ◽  
Prostate Diseases

Background: In clinical practice, biopsies are generally performed only when the results ofprostate specific antigen (PSA) test or digital rectal examination (DRE) are abnormal. This leads to misdiagnosis of most small prostatic cancers present in many older men. Patients with lower urinary tract infection (LUTS) who have serum PSA levels higher than 4ng/ml are primarily advised to undergo prostate biopsy to rule out cancer. However, PSA is organ specific not disease specific, so the presence of other prostate diseases such as benign prostatic hyperplasia (BPH) and prostatitis may influence its effectiveness for cancer detection. Hence, the PSA based prostate cancer detection is fraught with high false positive rate. Aim:To evaluate the utility of PSA assay as a method of investigation in diagnosis of prostatic lesion. Objectives: The use of Serum PSA levels for the early detection of prostate cancer and evaluate its role with other modalities for diagnosis of prostate cancer and to diagnose different diseases of prostate, i.e. prostatitis, BPH in prostatomegaly, and its correlation with Serum PSA levels. Materials and Methods: This prospective descriptive study was conducted in Index Medical College, Hospital & Research Centre, Indore, M.P,India in the period of August 2019 to July 2021. The patients were selected from the outdoor Department of General Surgery. Results: A total of 80 male patients presenting with LUTS were included. Their mean age was 68.66 years. The majority i.e. 41 of the study group were in the age group of 61-70 years. 42 of patients had Serum PSA < 4ng/ml. Biopsy proven adenocarcinoma cases 34% of the cases are in the age group of 61-70 years. Out of the biopsy proven adenocarcinoma cases, DRE was suspicious of malignancy in 89%. Conclusion: Serum PSA levels have a significant correlation with the age group, with the increase in age there is rise in Serum PSA levels. Transabdominal ultrasound, DRE and Serum PSA has high sensitivity in diagnosis of prostatomegaly but it was found that none of the screening tool has got much efficacy in differentiating carcinoma prostate from benign hypertrophy, but the combination of DRE and Serum total PSA or DRE, Serum total PSA and ultrasound abdomen showed higher efficacy in diagnosis of carcinoma prostate. Increase in Serum PSA is directly related to carcinoma, but there is no absolute cut-off for Serum PSAfor diagnosis of carcinoma. Key-Words: Prostate specific antigen, Prostatomegaly, Benign Prostatic Hypertrophy, Digital Rectal Examination, International Prostate Severity Score, Carcinoma Prostate.

scholarly journals The effects of cigarette smoking on prostate-specific antigen in two different age groups

2013 ◽  
Vol 7 (11-12) ◽  
pp. 704 ◽  
Author(s):  
Gokhan Koc ◽  
Korhan Akgul ◽  
Yuksel Yilmaz ◽  
Alper Dirik
Keyword(s):  
Cigarette Smoking ◽  
Prostate Specific Antigen ◽  
Specific Antigen ◽  
Age Groups ◽  
Group 4 ◽  
Significant Difference ◽  
Group 3 ◽  
Group 2 ◽  
Age Range ◽  
Group 1

Background: We investigate the effects of cigarette smoking on prostate-specific antigen (PSA) using 2 different age groups.Methods: The study was carried out between January 2007 and October 2011 with men; the 2 sets of age groups were: 25 to 35 years and 50 to 70 years old. The participants were divided into 4 groups. Of the 25 to 35 age range, smokers were Group 1, and non-smokers were Group 2; of the 50 to 70 age range, smokers were Group 3 and non-smokers Group 4. In addition, for the 50 to 70 age group, the International Prostate Symptom Score was completed, digital rectal examination was performed, and transabdominal prostate volume was measured. We wanted to see whether prostate-specific antigen (PSA) levels showed a difference between the 2 age groups.Results: There were 114 patients in Group 1, 82 in Group 2,90 in Group 3, and 102 in Group 4. The mean PSA level was 0.7 ± 0.28 ng/mL for Group 1, and 0.6 ± 0.27 ng/mL for Group 2 (p = 0.27), and there was no statistically significant difference between the 2 groups. The mean PSA was 2.5 ± 1.8 ng/mL for Group 3, and 2.1 ± 2.0 ng/mL (p = 0.59) for Group 4, and there was no statistically significant difference between the these 2 age groups.Interpretation: Cigarette smoking effects various hormone levels. Different from previous studies, the PSA level was higher in smokers compared to nonsmokers, although it was not statistically significant. Our study is limited by the small numbers in our study groups and the lack of PSA velocity data.

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