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Author: Turkmen, AydinPublication Index: Scopus

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    Current Induction Therapy Strategies and Anti-T Lymphocyte Globulin Usage in Kidney Transplantation: Consensus-Based Recommendations by a Turkish Expert Panel
    (Aves, 2024) Çakır, Ülkem; Dinçkan, Ayhan; Karadoğan, Nayim; Keven, Kenan; Koçak, Hüseyin; Koç, Serkan Kubilay; Yıldız, Alaattin; Turkmen, Aydin; Töz, Hüseyin; Sezer, Siren
    This advisory committee convened to review national and global kidney transplantation dynamics and provide recom- mendations on the use of anti-T lymphocyte globulin (ATLG) for prevention and treatment of rejection after allogeneic kidney transplantation. A critical evaluation of 6 relevant articles released up to October 2022 was performed to reveal their importance in clinical practice. Additionally, 27 key questions on the indication, dosage of ATLG, and risk stratification were used for the Delphi technique with 8 members of the Turkish Society of Nephrology including 5 kidney transplanta- tion (KTx) subcommittee members and a surgeon experienced in solid organ transplantation. The committee declared that Türkiye had great potential in KTx; however, increase in transplantation would be possible in the case of raise in the deceased donor transplantation. As a consensus, ATLG was strongly recommended for induction and rejection treatment. Also, committee members recommended the safe dosage range in steroid resistant acute rejection as 2.5-3 mg/kg daily for 5-7 days, and the median of preferred dosage in induction sounded as 2-2.5 mg/kg daily for 3 days in intermediate risk state. Additionally, post-transplant infection and malignancy cases due to immunosuppression were much rarely encoun- tered than they were in the past.
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    The Relationship Between Glomerular Igg Staining and Poor Prognostic Findings in Patients With Iga Nephropathy: the Data From Tsn-Gold Working Group
    (Bmc, 2021) Turgutalp, Kenan; Cebeci, Egemen; Turkmen, Aydin; Derici, Ulver; Seyahi, Nurhan; Eren, Necmi; Ozturk, Savas
    Background Galactose-deficient IgA1 (Gd-IgA1) has an increased tendency to form immunocomplexes with IgG in the serum, contributing to IgAN pathogenesis by accumulating in the glomerular mesangium. Several studies showed that glomerular IgG deposition in IgAN is an important cause of mesangial proliferation and glomerular damage. This study aims to determine the association of the positivity of IgG and the intensity of IgG staining with a poor renal prognosis. Methods A total of 943 IgAN patients were included in the study. Glomerular IgG staining negative and positive patients were compared using Oxford classification scores, histopathological evaluations, proteinuria, eGFR, albumin, blood pressures. IgG positive patients were classified as (+), (++), (+++) based on their staining intensity, and the association with the prognostic criteria was also evaluated. Results 81% (n = 764) of the patients were detected as IgG negative, while 19% (n = 179) were positive. Age, gender, body mass index, blood pressure, proteinuria, eGFR, uric acid values were similar in IgG positive and negative patients who underwent biopsy (p > 0.05). Intensity of glomerular IgG positivity was not found to be associated with diastolic and systolic blood pressure, urea, uric acid, age, eGFR, albumin, proteinuria (p > 0.05 for all, r = - 0.084, r = - 0.102, r = - 0.006, r = 0.062, r = 0.014, r = - 0.044, r = - 0.061, r = - 0.066, r = 0.150, respectively). There was no difference for histopathological findings between IgG (+), IgG (++), IgG (+++) groups (for all, p > 0.05). Conclusion Glomerular IgG negativity and positivity detected by routine IFM in IgAN patients is not associated with poor renal prognostic risk factors.