Tıp Fakültesi / Faculty of Medicine
Permanent URI for this collectionhttps://hdl.handle.net/11727/1403
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Item Endothelial Nitric Oxide Synthase Polymorphism Influences Renal Allograft Outcome(2014) Uyar, Murathan; Sezer, Siren; Ozdemir, Fatma Nurhan; Kulah, Eyup; Arat, Zubeyde; Atac, Fatma Belgin; Haberal, Mehmet; https://orcid.org/0000-0002-7326-8388; https://orcid.org/0000-0002-5682-0943; https://orcid.org/0000-0001-6041-4254; https://orcid.org/0000-0001-6868-2165; https://orcid.org/0000-0002-3462-7632; 24372826; AAK-5313-2021; JYQ-2550-2024; AAK-1697-2021; AAJ-5764-2021; ABG-9966-2020; AAJ-8097-2021BackgroundAtherosclerotic lesions within the graft are considered to be a major cause of interstitial fibrosis/tubular atrophy (IF/TA). We evaluated the factors that influence the development of IF/TA and three- and five-yr graft survival including nitric oxide synthase (eNOS) and angiotensin II type 1 and type 2 receptor gene polymorphism. MethodsSeventy-one male and 35 female patients (age: 34.911.2yr) who underwent living-related renal transplantation were included. Angiotensin type 1 and type 2 receptor gene polymorphisms and eNOS intron 4 gene polymorphism were analyzed. The pre- and post-transplant laboratory data, patient characteristics, acute rejection episodes, and presence of IF/TA were evaluated. ResultsPatients with the bb allele of eNOS gene had a lower prevalence of post-transplant third year (12.6% and 38.5%, p=0.005) and fifth year IF/TA (46.6% and 82.3%, p=0.02) and a lower incidence of five-yr graft failure (35.4% and 55.6%, p<0.005). The eNOS gene polymorphism was independent and was the most prominent factor associated with third and fifth year IF/TA (p=0.01, RR: 29.72, and p=0.03, RR: 4.1, respectively). No significant relationship existed when angiotensin II gene polymorphisms were considered. ConclusionsWe concluded that recipient eNOS gene polymorphism can predict IF/TA, and the presence of the bb allele is associated with better graft outcome.Item Possible Impact of Immunosuppressive Therapy Regimens on Histopathologic Outcomes of Abnormal Uterine Bleeding in Solid-Organ Transplant Recipients(2018) Tohma, Yusuf Aytac; Akilli, Huseyin; Kirnap, Mahir; Haberal, Asuman Nihan; Akyel, Dilan; Zengin, Hatice Yagmur; Zeyneloglu, Hulusi Bulent; Kuscu, Esra; Ayhan, Ali; Haberal, Mehmet; https://orcid.org/0000-0001-9418-4733; https://orcid.org/0000-0002-5240-8441; https://orcid.org/0000-0001-9852-9911; https://orcid.org/0000-0002-9855-2449; https://orcid.org/0000-0002-0289-2642; https://orcid.org/0000-0002-3462-7632; 29851156; AAE-6482-2021; AAX-3230-2020; AAH-9198-2019; AAK-4587-2021; ABA-3224-2021; B-6487-2009; AAJ-8097-2021Background: In this study, we aimed to determine the frequency of histopathologic outcomes of solid-organ transplantation in women with abnormal uterine bleeding (AUB) receiving immunosuppressive therapies. Methods: This is a retrospective study including a single-center experience. Data were extracted from hospital records, and solid-organ transplant recipients who were diagnosed with AUB were included. Results: Fifty-five of these patients were renal transplant recipients (79.7%), and 14 were liver transplant recipients (20.3%). Histopathologic examination showed various histopathologic patterns of endometrium in patients with AUB consisting of normal histopathologic findings of endometrium in 31 patients (48.4%); 29 hormonal imbalance during proliferative and secretory phases of menstrual cycle and two atrophic endometrium. Endometrial hyperplasia without atypia was observed in 11 patients (17.2%). Polyp was seen in 22 patients (34.4%); 21 endometrial polyp and one endocervical polyp. There were significant differences in terms of histopathologic findings among the three groups of patients according to different immunosuppressive regimens (P = .029). There was no endometrial hyperplasia in women receiving sirolimus-based immunosuppressive regimens. Moreover, there was no endometrial hyperplasia in the liver transplant recipient group. Conclusions: Sirolimus-based immunosuppressive regimens may be administered to patients who have risk factors for endometrial precancerous lesions, such as endometrial hyperplasia. However, additional well-designed, large-scale studies are warranted to confirm our findings.Item The Predictive Value of Resistive Index Obtained by Doppler Ultrasonography Early After Renal Transplantation on Long-Term Allograft Function(2017) Melek, Ergin; Baskin, Esra; Gulleroglu, Kaan; Uslu, Nihal; Kirnap, Mahir; Moray, Gokhan; Haberal, Mehmet; https://orcid.org/0000-0003-4361-8508; https://orcid.org/0000-0003-1434-3824; https://orcid.org/0000-0002-6733-8669; https://orcid.org/0000-0003-2498-7287; https://orcid.org/0000-0002-3462-7632; 27900821; B-5785-2018; F-3294-2013; ABC-5258-2020; AAH-9198-2019; AAE-1041-2021; AAJ-8097-2021DUSG is a useful diagnostic tool for the follow- up of renal transplant recipients. The measurement of intrarenal arterial RI by DUSG has been proven to predict short-term AF. The aim of the study was to evaluate the predictive value of DUSG performed during the early after RTx on long-term AF. Seventy patients were enrolled into study. DUSG was performed at third and seventh days after RTx. Patients were divided into two groups according to rate of recovery of graft function as patients with normal graft function and abnormal graft function. Although the RI values were correlated with the AF early after transplantation, they were not correlated with long-term AF. However, the rate of recovery of graft function at early period after RTx was correlated with creatinine level at first year and with glomerular filtration rate at first year and last visit. Although the RI has no predictive value for long-term AF, the rate of recovery of graft function at early post-transplantation period has predictive value for long-term AF; patients with higher RI values early after RTx should be followed carefully for the development of chronic allograft injury.