Efficacy of preheated chelating agents on calcium ion removal from instrumented root canals

The heating of chelating agents such as EDTA increases dentin wettability by decreasing surface tension. However, the calcium ion release effect of preheated chelating agents in instrumented root canals has not yet been mentioned. In this s

Clinical and demographic characteristics of children with familial mediterranean fever in Central Anatolia

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The course of peritoneal membrane transport in patients on long-term peritoneal dialysis: what is it affected by?

BACKGROUND: The aim of this study was to investigate the course of peritoneal membrane transport in patients on long-term peritoneal dialysis (PD) and to identify possible factors affecting its course

Hidrolik kalsiyum silikat içerikli endodontik materyallerin eritrositler ve karaciğerdeki oksidatif stres üzerindeki etkileri

Objective: The aim of this study was to evaluate the effects of hydraulic calcium silicate endodontic cements, MTA Angelus, MTA Fillapex, and Theracal LC, on erythrocyte and liver oxidative stress parameters of rats. Methods: Right upper incisor of each rat was extracted and polyethylene tubes containing the dental cements, or left empty for the control group, were inserted into the extraction socket. Blood and liver samples of each animal were obtained after 7, 30, or 60 days. Thiobarbituric acid reactive substances (TBARS) levels and catalase (CAT), superoxide dismutase (SOD), and glutathione peroxidase (GPx) activities were determined by spectrophotometry. Results: Erythrocyte and liver TBARS levels, and CAT and SOD enzymatic activities were significantly increased in dental cement applied groups compared with controls on day 7. The highest erythrocyte and liver TBARS concentrations were observed in the MTA Angelus group on day 7 of exposure. On day 30, erythrocyte CAT activity remained markedly high, but the other parameters returned to almost normal levels. On day 60, all parameters were similar between the control and the experimental groups. Conclusions: This is the first study to show that TBARS levels and antioxidant enzyme activities are transiently increased as a result of dental cement application.Amaç: Bu çalışmanın amacı, hidrolik kalsiyum silikat içerikli endodontik simanların (MTA Angelus, MTA Fillapex ve Theracal LC), sıçanların eritrositlerinde ve karaciğerlerindeki oksidatif stres parametreleri üzerine etkisini değerlendirmektir. Yöntem: Her sıçanın sağ üst kesici dişi çekildi; diş simanlarını içeren ya da kontrol grubu için boş bırakılan iki ucu açık polietilen tüpler diş çekim soketine yerleştirildi. Her hayvanın kan ve karaciğer örnekleri 7, 30 veya 60 gün sonra elde edildi. Tiobarbitürik asit reaktif maddeler (TBARS) seviyeleri ve katalaz (CAT), süperoksit dismutaz (SOD) ve glutatyon peroksidaz (GPx) aktiviteleri spektrofotometri ile belirlendi. Bulgular: Eritrosit ve karaciğer TBARS seviyeleri ve CAT ve SOD enzim aktiviteleri 7. günde diş simanı uygulanmış gruplarda kontrollere kıyasla anlamlı şekilde artmıştı. En yüksek eritrosit ve karaciğer TBARS konsantrasyonları, maruziyetin 7. gününde MTA Angelus grubunda gözlendi. 30. günde, eritrosit CAT aktivitesi belirgin olarak yüksek kaldı, ancak diğer parametreler neredeyse normal seviyelere döndü. 60. günde, tüm parametreler kontrol grubu ile deney grupları arasında benzerdi. Sonuç: Bu, TBARS düzeyleri ve antioksidan enzim aktivitelerinin, diş simanı uygulamasının bir sonucu olarak geçici olarak arttığını gösteren ilk çalışmadır.Research and Developmen

Relationship of Gamma-glutamyl Transferase Levels at Diagnosis with Clinicopathological Features in idiopathic IgA Nephropathy

© 2022 College of Physicians and Surgeons Pakistan. All rights reserved.Objective: To compare clinicopathologic features of idiopathic IgA nephropathy in terms of serum gamma-glutamyl transferase (GGT) levels. Study Design: Cross-sectional study. Place and Duration of Study: Department of Nephrology and Department of Pathology, Afyonkarahisar Health Sciences University, Afyonkarahisar, Turkey, from January 2010 to January 2021. Methodology: All patients diagnosed with IgA nephropathy were retrospectively evaluated. Patients were divided into quartiles of gamma-glutamyl transferase. Clinical and pathological features were compared between the groups. Results: A total of 69 patients with idiopathic IgA nephropathy were analysed. The GGT quartiles consisted of Q1(GGT ≤14 U/L) in 18 patients, Q2(GGT = 14.01-20 U/L) in 17 patients, Q3(GGT = 20.1-35 U/L) in 18 patients, and Q4(GGT >35 U/L) in 16 patients. The rates of mesangial cellularity, segmental glomerulosclerosis, and tubular atrophy were found to be significantly different among GGT groups (p= 0.024, p= 0.048, and p<0.001 respectively). Serum albumin and 24-hours proteinuria were also significantly different between groups (p<0.001). Conclusion: Gamma-glutamyl transferase may play a role in some clinical and pathological features of IgA nephropathy