Saratov JOURNAL of Medical and Scientific Research

immunohistochemistry

The peculiarities of morphological differential diagnostics of intradural tumor localized at the level of medullary cone and cauda equina roots

Year: 2018, volume 14 Issue: №3 Pages: 567-570
Heading: Traumatology and Orthopedics Article type: Case report
Authors: Matveeva O.V., Bazhanov S.P., Ponomareva Е.Е., Tolkachev V.S.
Organization: Penza Regional Oncology Centre
Summary:

Aim: to demonstrate the necessity of modern methods of morphological verification in the differential diagnostics of primary and secondary neoplastic lesion of spinal cord. It is shown that histogenesis of tumor cells should be regarded from the viewpoint of comparative assessment of traditional and complementary methods of morphological verification that outlines the necessity of complex differential morphological diagnostics with apparent priority of immunohisto-chemical methods for the verification of final diagnosis of metastatic lesion in a rarely seen localization.

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Identification of risk factors of prostate adenocarcinoma recurrence after HIFU therapy using immunohistochemical markers

Year: 2014, volume 10 Issue: №4 Pages: 654-658
Heading: Urology Article type: Original article
Authors: Popkov V.M., Maslyakova G.N., Voronin E.S., Fomkin R.N.
Organization: Saratov State Medical University
Summary:

The purpose of this study was to identify risk factors for recurrence of prostate adenocarcinoma after HIFU therapy. Material and methods: Material for the study was obtained from patients diagnosed with adenocarcinoma before and after HIFU treatment. Morphological study was conducted using a standard staining, and immunohistochemical markers: PCNA, Amacr, E-cadherin, Bel2, Andr, Estr, VEGF, P53, PCNA. Results: After treatment in 89% of patients with initial prostate volume greater than 50 cc the signs of recurrence of adenocarcinoma were showed. At low risk for D'Amico after treatment the expression of proliferation markers, VEGF, Amacr significantly decreased. With a high degree of risk — increased expression of Bel2. After treatment the expression of the following markers: PCNA, Amacr, VEGF significantly increased in the group of patients with the presence of invasion. Conclusion: Patients with initial prostate volume less than 50 cc, low risk to D'Amico, the lack of perineural and perivascular invasion have a low risk of recurrence after HIFU therapy; patients at high risk for D'Amico, the presence of perineural and perivascular invasion initial and prostate volume greater than 50 cc, low-grade cribriform form of adenocarcinoma have a high risk of recurrence of adenocarcinoma. Recurrence of adenocarcinoma develops independently of the period after HIFU therapy.

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Clinical and morphological characteristics of chronic duodenitis in children

Year: 2012, volume 8 Issue: №3 Pages: 799-803
Heading: Pediatrics Article type: Original article
Authors: Tishchenko D.V., Matveeva O.V., Chernenkov Yu.V., Maslyakova G.N., Bucharskaya A.B.
Organization: Saratov State Medical University, Engels City Polyclinic №3
Summary:

The research goal is to determine clinical, endoscopic and morphological signs of chronic duodenitis in children. Materials and methods: The diagnostic value of molecular markers has been revealed by immunohistochemical research of biopsy. It has been received from endoscopic examination of 32 children aged from 3 to 17 years old with chronic duodenitis. Morphometric investigation of markers expression has been carried out by means of analyzing system of digital images of Mikrovizor medical uVizo-103. Results: The index of proliferation has been higher in cells of cover epithelium than in glands. The inductor expression of apoptosis Bax has been poorly expressed in both groups of patients. It has been proved that proliferative processes are predominant in this pathology. Conclusion: It has been found out that proliferation of significant activity in the cover epithelium accompanies the development of preatrophic processes in children with chronic duodenitis. The greater degree of regeneration has been marked in crypts.

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Application of automated morphometric method of estimation of expression of immunohistochemical markers in diagnostics of prostate and bladder cancer

Year: 2010, volume 6 Issue: №4 Pages: 845-849
Heading: Urology Article type: Original article
Authors: Popkov V.M., Ponukalin A.N., Maslyakova G.N., Tsmokalyuk E.N., Bucharskaya A.B., Shirokov A.A., Burov A.M.
Organization: Saratov State Medical University, Institute of Biochemistry and Physiology of Plants and Microorganisms of Russian Academy of Sciences
Summary:

The diagnostic significance of molecular markers was evaluated by immunohistochemical research of surgical and biopsy material of 106 patients with diseases of bladder and 57 patients with diseases of prostate. They received treatment at Scientific Research Institute of Fundamental and Clinical Uronephrology with monoclonal antibodies: Ki-67, PCNA, p63 (markers of proliferative activity), p53 (suppressor of tumor growth), Bcl-2, Bax (markers of apoptosis), EGFR (receptor of epidermal growth factors), PSA, PSMA, AMACR (prostate-specific antigens) and cytokeratin profile. The morphometric research was conducted on the basis of automated analysis system of digital images Ariol SL50 (Genetix)

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