Search results for: Human PSA-total ELISA ELISA
#16140116 // To Up
Serum levels of vascular endothelial growth factor in patients undergoing prostate biopsy for suspicion of prostate cancer.
To analyze the correlation between serum levels of vascular endothelial growth factor (VEGF) and biopsy findings in patients with a suspicion of prostate cancer.Michaël Peyromaure, Claire Goulvestre, Yvonne Fulla, Sophie Grabar, Bernard Debré, Anh Tuan Dinh-Xuan
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#15228865 // To Up
Free and total prostate specific antigen in benign prostate hyperplasia and prostate cancer.
To record the levels of PSA in the sera of prostate cancer (CaP) and benign prostatic hyperplasia (BPH) cases. Free PSA/total PSA as percentage was also calculated in order to evaluate its utility in differentially diagnosing BPH and CaP.Saima Naz, Sarah Ahmad, Farkhanda Ghafoor, Nadeem Shafique Butt, M Waheed Akhtar
2059 related Products with: Free and total prostate specific antigen in benign prostate hyperplasia and prostate cancer.
25 ml Ready-to-useRelated Pathways
#11295072 // To Up
Progression of prostate cancer: diagnostic and prognostic utility of prostate-specific antigen, alpha2-macroglobulin, and their complexes.
We previously reported cases of advanced prostate cancer (PCa) in which serum alpha2-macroglobulin (alpha2M) levels were markedly decreased to less than approximately 50 mg/dl whereas serum prostate-specific antigen (PSA) levels were remarkably increased. These cases were not complicated with disseminated intravascular coagulation (DIC). In this study, we measured serum PSA and alpha2M in 108 patients with either benign prostatic hyperplasia (BPH) or PCa to elucidate the relationship between PSA, i.e. the serum protease derived from the prostatic tissue, and alpha2M, i.e. the protease inhibitor that was the most abundantly contained in serum. alpha2M was determined by ELISA, total PSA and PSA-alpha1-antichymotrypsin (PSA-ACT) by EIA, and free-PSA by RIA in 44 patients with untreated BPH and 64 patients with untreated PCa. The ready association of alpha2M and PSA was assessed using Western blotting to identify complexes of the two. Levels of total serum PSA correlated positively with those of PSA-ACT in PCa (r = 0.99, p < 0.001), and both levels increased with advancing stage of disease. In contrast, the serum-free PSA/total PSA ratio (free/total PSA) and alpha2M levels decreased as the disease progressed. However, only the free/total PSA ratio attained significant difference for localized cancer in stage T1,2 versus BPH (p < 0.05). In stage M1b PCa, in which serum PSA levels were very high, there was a negative correlation between the total PSA and alpha2M values (r = -0.57, p < 0.05). In addition, serum alpha2M levels tended to decrease with progression of PCa. Serum total PSA levels correlated tightly with serum PSA-ACT levels. It is suggested that PSA is usually complexed with ACT in the serum. Free/total PSA was useful for differential diagnosis between early cancer and BPH. Levels of serum alpha2M of less than 50 mg/dl in PCa patients may indicate a possibility of bone metastases.Y Kanoh, N Ohtani, T Ohara, T Mashiko, S Ohtani, S Egawa, S Baba, H Ohtani
2294 related Products with: Progression of prostate cancer: diagnostic and prognostic utility of prostate-specific antigen, alpha2-macroglobulin, and their complexes.
25 ml Ready-to-use 25 ml Ready-to-use 6 ml Ready-to-use 100 6 ml Ready-to-use 2 ml Ready-to-use 0.05 mg1 kit(96 Wells) 2 ml Ready-to-useRelated Pathways
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