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DEMİRCİ BODUR, ECE

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DEMİRCİ BODUR

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ECE

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Author: YILDIZ, NURDAN × Has files: true ×

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    PublicationOpen Access
    Clinical and genetic characterization of children with cubilin variants
    (2022-09-16) GÖKCE, İBRAHİM; ATA, PINAR; ALPAY, HARİKA; GÜVEN, SERÇİN; ALAVANDA, CEREN; ÇİÇEK DENİZ, NESLİHAN; PUL, SERİM; DEMİRCİ BODUR, ECE; YILDIZ, NURDAN; Cicek N., Alpay H., Guven S., Alavanda C., Türkkan Ö. N. , Pul S., Demirci E., Yıldız N., Ata P., Gokce İ.
    Background Cubilin is one of the receptor proteins responsible for reabsorption of albumin in proximal tubules and is encoded by the CUBN gene. We aimed to evaluate clinical and genetic characterization of six patients with proteinuria who had CUBN mutations. Methods Patients’ characteristics, serum creatinine, albumin, vitamin B12 levels, urine analysis, spot urine protein/creatinine, microalbumin/creatinine, beta-2 microglobulin/creatinine ratios, estimated glomerular fltration rates (eGFR), treatments, kidney biopsies, and genetic analyses were evaluated. Results Six patients (2 female, 4 male) with an incidental finding of proteinuria were evaluated. Mean admission age and follow-up time were 7.3 ± 2.9 and 6.5 ± 5.6 years, respectively. Serum albumin, creatinine, and eGFR were normal; urine analysis revealed no hematuria, and C3, C4, ANA, and anti-DNA were negative; kidney ultrasonography was normal for all patients. Urine protein/creatinine was 0.9± 0.3 mg/mg, and microalbumin was high in all patients. Serum vitamin B12 was low in two patients and normal in four. Kidney biopsy was performed in four patients, three demonstrated normal light microscopy, and there was one focal segmental glomerulosclerosis (FSGS). Genetic tests revealed four homozygous and two compound heterozygous mutations in the C-terminal part of cubilin. All patients had normal eGFR and still had non-nephrotic range proteinuria at last visit. Conclusions CUBN gene mutations should be considered in patients with isolated non-nephrotic range proteinuria and normal kidney function. Diagnosing these patients, who are thought to have a better prognosis, is important in terms of avoiding unnecessary treatment and predicting prognosis. CUBN gene mutations may also present as FSGS which extends the spectrum of renal manifestation of these patients.
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    PublicationOpen Access
    Recurrent acute kıdney ınjury due to thrombosıs of the vena cava ınferıor
    (2022-11-01) DEMİRCİ BODUR, ECE; YILDIZ, NURDAN; TRUE, ÖMER; ALPAY, HARİKA; GÖKCE, İBRAHİM; Turkkan O. N. , GÖKCE İ., Barlas B., Pul S., DEMİRCİ BODUR E., Guven S., Cicek N., YILDIZ N., DOĞRU Ö., ALPAY H.
    Rationale: Acute kidney injury (AKI) is a frequent complication after liver transplantation. In some patients, prompt intervention targeted at a specific etiology is of paramount importance.Presenting concerns of the patients: A 25 years old man with advanced liver cirrhosis caused by sclerosing cholangitis and autoimmune hepatitis underwent orthotopic liver transplantation. One month after surgery, severe AKI developed in conjunction with recurrent ascites and lower extremity edema. Notable clinical findings included a persistently low urinary sodium excretion, a bland urinary sediment, and an abnormally monophasic hepatic vein waveform on Doppler ultrasound.Diagnoses: Inferior vena cava stenosis.Interventions: Angioplasty with stent installation.Outcomes: Rapid improvement of renal function after stent installation.Lessons learned: The following case illustrates the importance of integrating clinical cues, ultrasound features, and laboratory findings. The combination of AKI associated with lower extremity edema, abnormal monophasic hepatic vein flow on Doppler ultrasound, and a low urinary sodium excretion after liver transplantation should evoke the possibility of inferior vena cava stenosis as the etiologic factor.