Publications by authors named "Ibrahim Akalın"

Purpose: The MEFV gene encodes pyrin, a protein linked to increased severity of symptoms in Familial Mediterranean Fever (FMF). We consider that inflammation due to MEFV variants would increase eye inflammation and damage aqueous humor regulation. The present study is the first analysis investigating a MEFV (E148Q) variant as a marker protecting from glaucoma.

View Article and Find Full Text PDF

Purpose: The progress of prostate cancer entails complex contemporaneous tumor developmental events in diverse stages that they are still yet to be clarified. miRNAs might accompany to balance between regulatory and cytotoxic T cells in tumors. Here, we investigated miRNAs and Regulatory T cell (Treg) marker FOXP3 expressions within prostate cancer spectrum.

View Article and Find Full Text PDF

Background: The malignancy potential of the laryngeal lesions are one of the major concerns of the surgeons about choosing the treatment options, forming surgical margins, deciding the follow-up periods. Finding a biomarker to overcome these concerns are ongoing challenges and recently microRNAs (miRNAs) are attributed as possible candidates since they can regulate gene expressions in the human genome. The objective of our study was to investigate their capability as a transformation biomarker for malignant laryngeal lesions.

View Article and Find Full Text PDF

Lissencephaly comprises a spectrum of malformations of cortical development. This spectrum includes agyria, pachygyria, and subcortical band heterotopia; each represents anatomical malformations of brain cortical development caused by neuronal migration defects. The molecular etiologies of neuronal migration anomalies are highly enriched for genes encoding microtubules and microtubule-associated proteins, and this enrichment highlights the critical role for these genes in cortical growth and gyrification.

View Article and Find Full Text PDF

Objective: The molecular events underlying ear development involve numerous regulatory molecules; however, the role of microRNAs (miRNAs) has not been explored in patients with ear atresia. Here, we aimed to investigate the expressions of 20-22 nucleotide noncoding RNAs.

Methods: We selected 12 miRNAs that function to control post-transcriptional gene expression in different pathways, including apoptosis, angiogenesis, and chondrogenesis.

View Article and Find Full Text PDF

Besli GE, Yıldırım S, Akalın İ, Ayhan Yİ, Kısıoğlu M, Berdeli A. Fever-induced Brugada syndrome in a 9-year-old boy presenting with acute chest pain. Turk J Pediatr 2018; 60: 571-575.

View Article and Find Full Text PDF

Background: Cilioretinal arteries (CAs) represent enlargements of microscopic and early established collaterals formed via vasculogenesis between choroidal and retinal circulations. We aimed to investigate whether genetic tendency to thrombosis due to well-known gene polymorphisms may induce CA vasculogenesis in embryonic life.

Methods: We assessed plasminogen activator inhibitor-1 (PAI-1) 4G/5G, methylenetetrahydrofolatereductase (MTHFR), FACTOR V LEIDEN and PROTHROMBIN gene polymorphisms on 130 patients [82/48 females/males; Median age: 57 (18-84) with visible CAs and 100 (64/36: female/male; Median age: 55 (19-90)] without visible CAs.

View Article and Find Full Text PDF

Expression levels of several molecules implicated in carcinogenesis were examined by immunohistochemical staining, and the prognostic significance of their expression levels in gastric adenocarcinoma (GA) was evaluated. A total of 115 GA and 20 control gastric tissue samples were evaluated by immunohistochemistry using 33 antibodies targeting molecules known to play a part in the development of various tumors. Overexpression of carbonic anhydrase IX (CAIX) and loss of AT-rich interactive domain-containing protein 1A (ARID1A), aldehyde dehydrogenase 1 (ALDH1), and CD44 expression in GA patients were significantly correlated with lymph node (LN) metastasis, advanced tumor stage, and poor prognosis.

View Article and Find Full Text PDF

Survivin, β-catenin, and p53 are well-known cell-cycle and apoptosis regulators of tumorigenesis. Urothelial carcinomas (UCs) are the most common of the human cancers. Compared to superficial tumors (Ta, CIS, or T1), invasive UCs are important with regard to recurrence, progression, and mortality.

View Article and Find Full Text PDF

Lentiginoses is a clinical feature in which lentigines are remarkably present in large numbers or when they occur in a distinctive distribution on apparently normal skin. This entity may be congenital or acquired and may cover a wide spectrum of diseases ranging from an isolated benign pigmentary disorder to numerous syndromes associated with molecular abnormalities.We present a 59-year-old female patient with multiple lentigines which first emerged 3 y ago concurrently with policytemia vera.

View Article and Find Full Text PDF

Epithelial-stroma interactions in the endometrium are known to be responsible for physiological functions and emergence of several pathologic lesions. Periglandular stromal cells act on endometrial cells in a paracrine manner through sex hormones. In this study, we immunohistochemically evaluated the expression of epithelial-mesenchymal transition regulators (SNAIL/SLUG, TWIST, ZEB1), adhesion molecules (β-catenin and E-cadhenin), estrogen (ER)-progesterone (PR) receptor and their correlation with each other in 30 benign, 148 hyperplastic (EH), and 101 endometrioid-type endometrial carcinoma (EC) endometria.

View Article and Find Full Text PDF

Endometrioid-type endometrial carcinoma (EEC) developing on the ground of endometrial hyperplasia (EH) is amongst the most commonly observed type of cancer in the world. Folate receptor α (FRα) is a vitamin molecule that has a role in cell proliferation. The fact that FRα, which is known to be needed extremely by the cells of malignancies that proliferate rapidly, is present in limited amounts in normal tissues while it is overexpressed in malignant cells of the same tissues makes folate a candidate for target molecular therapy.

View Article and Find Full Text PDF

Molecular studies are ongoing in regards to superficial urothelial carcinoma of the bladder (UCB) either to define targeted therapy or to better select aggressive therapy candidates and also to delineate the outcome of the disease. In this study, we aimed to present the impact of ALDH1 and CD44 as stem cell markers in tumorigenesis and their prognostic value in urothelial carcinoma. We investigated ALDH1 and CD44 immunohistochemically in paraffin-embedded material of 125 non-muscle-invasive (NMI) cases in 163 UCB patients.

View Article and Find Full Text PDF

Objective: This study was designed to compare the oxidative stress parameters of patients with polycythemia vera (PV) to those of healthy volunteers and to investigate the probable relationship between vascular events and parameters of oxidative status such as total oxidative status (TOS), total antioxidant status, oxidative stress index (OSI) and malondialdehyde (MDA) in PV patients.

Material And Methods: Thirty-five PV patients (20 males and 15 females) and 20 healthy volunteers (11 males and 9 females) were enrolled. The oxidative status parameters of the patients were measured by spectrophotometric analyses at the time of diagnosis and at 6 months after treatment which consisted of phlebotomy and 100 mg/day acetyl salicylic acid with or without hydroxyurea for the high- and low-risk disease group, respectively.

View Article and Find Full Text PDF

We report on a girl who presented with distinctive abducted hip and hyperextended knee. Cytogenetic analysis detected an extra derivative chromosome resulting from a balanced translocation in the mother and 3:1 segregation. Using array comparative genomic hybridization (CGH) in combination with conventional high resolution GTG banding, we designate the karyotype as 47, XX, +der(9)t(1;9)(q41;q21.

View Article and Find Full Text PDF