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Öğe Cutaneous Ciliated Cyst in an Unusual Location: Between Two Scapulas(Hindawi Ltd, 2018) Doğan, Gül; İpek, Hülya; Metin, Mehmet; Özkayar, Özgür; Afşarlar, Çağatay EvrimCutaneous ciliated cyst is defined as a rare, painless lesion frequently encountered on the lower extremities of young girls after puberty. The cyst is surrounded by the columnar ciliary epithelium. Apart from the lower extremities of girls, they may be localized on the scalp, scapula, thumb, abdomen, umbilicus, thigh, heel, knee, and gluteal region. There are two theories to explain this localization. The first is that they are mullerian heterotrophy, while the other is that they are ciliated metaplasia of eccrine glands. In this paper, we described a cutaneous ciliated cyst, which was observed with a previously undescribed localization on the back of a 13-year-old female patient.Öğe Investigating AXIN1 gene polymorphisms in Turkish children with cryptorchidism: A pilot study(ELSEVIER SCI LTD, 2024) Doğan, Gül; Yılmaz, Akın; İpek, Hülya; Metin, Mehmet; Peltek Kendirci, Havva Nur; Afşarlar, Çağatay EvrimIntroduction Cryptorchidism is one of the most common congenital anomalies in male children, occurring in 2e5% of full-term male infants. Both genetic and environmental factors are observed to play a role in its etiology. A study conducted in Japan identified the AXIN1 gene as being associated with cryptorchidism. Objective We aimed to conduct a pilot study on AXIN1 gene polymorphism in Turkish children with cryptorchidism, and whether AXIN1 gene polymorphism is a risk factor for cryptorchidism. Study design Between January 2023 and December 2023, we have planned a prospective controlled study including 84 boys operated for cryptorchidism as study group, and 96 boys operated for circumcision as control group. The remaining blood samples of preoperative laboratory tests in ethylenediamine tetraacetic acid (EDTA) tubes were kept at 20 Co freezer for genomic studies. Patient demographics, physical examination and operative findings were recorded, study patients were grouped according to testis localization. After collecting all samples, genomic DNA isolation procedure was done, and analysis of the 3 polymorphisms (rs12921862, rs1805105 and rs370681) of AXIN1 gene was performed using conventional Polymerase Chain Reaction Restriction Fragment Length Polymorphism (PCR-RFLP) method. Genotype and allele frequencies of each group was analyzed and compared. Results The most common location of cryptorchid testis was proximal inguinal (53%), followed by distal inguinal (25.3%), bilateral (13.3%), and intra-abdominal (8.4%). Regarding the 3 polymorphisms of AXIN1 gene, there was no significant difference between study and control groups, in terms of genotype and allele frequencies (P > 0.05). Eight haplotype blocks were estimated for 3 polymorphisms of AXIN1. However, no significant difference was observed between study and control groups regarding haplotype distributions (P > 0.05). In addition, the comparison of the localization of testis with AXIN1 gene polymorphism did not show any significant difference among cryptorchid testis groups (P > 0.05). Discussion The AXIN1 gene is located on chromosome 16p and its polymorphisms have been associated with various diseases. In a Chinese study, the rs370681 polymorphism was found to be associated with cryptorchidism. However, our results showed no association between the AXIN1 gene haplotypes for the studied polymorphisms and cryptorchidism. Conclusion In this study we have investigated the AXIN1 gene polymorphism in Turkish children with cryptorchidism as a pilot study. Although we could not identify any difference as compared to control group, further research is necessary to uncover the underlying molecular mechanisms contributing to the development of cryptorchidism.Öğe Is the presence of echo-rich periportal cuffing in the liver indicator for abdominal inflammation in pediatric patients?(Soc Romana Ultrasonografe Medicina Biologie-Srumb, 2019) Fidan, Nurdan; Yetis, Esra Ummuhan Mermi; Murat, Muammer; Yucesoy, Cuneyt; Turgal, Ebru; Metin, MehmetAims: Hyperechoic/echo-rich periportal cuffing (ErPC) is defined as an increase in echogenicity relative to the adjacent liver parenchyma. Thickening in the periportal area may occur with proliferation of bile ducts, hemorrhage, oedema, fibrosis, inflammatory changes or a combination of these. The aim of this study is to determine which intraabdominal inflammatory diseases arc associated with the presence of ErPC in the pediatric population and to calculate the sensitivity and specificity of this finding. Material and methods: In this prospective study 200 consecutive children who underwent abdominal ultrasonography (US) were included: group 1, the patient group (100 children with appendicitis, gastroenteritis, mesenteric lymphadenitis, intestinal infection, terminal ileitis and imagination as cause of intra-abdominal inflanunation) and group 2, the control group (100 children). Results: The ErPC was positive in 74 (74%) cases in the patient group and in 3 (3%) in the control group. According to final diagnoses, we found ErPC in most of patients with gastroenteritis (16/17), perforated appendicitis (10/11), mesenteric lymphadenitis (5/6) and acute appendicitis (27/37). The sensitivity of ErPC in indicating intra-abdominal inflammation was 0.80 and its specificity was 0.87. No significant correlation between ErPC and age, gender and CRP was found but a moderate and significant positive correlation between ErPC and WBC (p=0.010; r=0.255) was detected. Very good concordance between observers in terms of the presence of ErPC on abdominal US was found (concordance 97% and kappa 0.93). Conclusions: We consider that the presence of ErPC in pediatric patients, when evaluated alongside clinical and laboratory findings, has a high sensitivity and specificity for inflammatory intra-abdominal pathology.Öğe The effect of probiotics on intestinal motility in an experimental short bowel model(Acta Cirurgica Brasileira, 2020) Metin, Mehmet; Altun, Ahmet; Koyluoglu, GokhanPurpose: To investigate the effect of probiotics on spontaneous contractions of smooth muscle isolated from jejunum and ileum of rat model. Methods: Four rat groups were created (n=8, in each) including control (Group 1), control+probiotic (Group 2), short bowel (Group 3), and short bowel+probiotic (Group 4). Groups 1 and 2 underwent sham operation, Groups 3 and 4 underwent massive bowel resection. Bifidobacterium Lactis was administered in Groups 2 and 4 daily (P.O.) for three weeks. On postoperative week 3, rats were sacrificed, and jejunum and ileum smooth muscle were isolated for organ bath. Muscle contraction changes were analyzed before and after addition of antagonists. Results: Short bowel group exhibited increased amplitude and frequency of spontaneous contractions. The addition of probiotics significantly decreased enhanced amplitude and frequency of bowel contraction in short bowel group and returned to control values. L-NNA increased amplitude and frequency of contractions in all groups. While indomethacin and nimesulide increased the amplitude in all groups, the frequency was only increased in jejunum. Hexamethonium and tetrodotoxin did not change the contraction characteristics in all groups. Conclusion: We suggest that early use of probiotics may significantly regulate bowel motility, and accordingly improve absorption of nutrients in short bowel syndrome.
