AS may be an effective alternative to PFAT in the treatment of dry eye developed during isotretinoin use.

The present study clearly shows that the sebum content on the forehead and skin hydration of the forehead and forearm are significantly decreased in GH deficient patients with Sheehan's syndrome. However 6 months of GHRT significantly increased only the sebum content on the forehead. These data suggest that GH and/or IGF-I may have a modulatory role on several skin characteristics.

GHD results in a decrease in skin capacitance and sebum content indicating that GH and/or insulin-like growth factor-I (IGF-I) have an important role in skin function.

The effect of oral isotretinoin therapy may cause regional thinning in RNFL and macula, directly visible part of central nervous system.

Bu çalışmada, akut kısıtlama stresi ve soğuk kısıtlama stresinin sıçanlarda elektrokardiyografik (EKG) parametreler üzerindeki etkilerini araştırıldı. Toplam 18 adet 8-10 haftalık, ağırlıkları 180-220 g olan erkek Wistar albino rat üç eşit gruba (n=6/grup) ayrıldı. Kontrol grubundaki ratlara stresör uygulanmadı. Kısıtlama grubundaki ratlar 2 saat kısıtlayıcıda tutuldu. Soğuk tutma grubundaki ratlar kısıtlayıcı içinde 2 saat +4°C'de tutuldu. Sıçanlarda Televet II EKG cihazı (Kruuse, Almanya) ile ketamin ve ksilazin anestezisi altında EKG kaydı yapıldı ve derivasyonların analizinde Televet 100 programı (versiyon® 7.0.0, Kruuse, Heusenstamm, Almanya) kullanıldı. PR, QT, QRS intervalleri ve R dalgası amplitüdü analizinde gruplar arasında anlamlı fark yoktu (p >0,05). Ancak, kalp atım hızı soğuk kısıtlama grubunda kontrol grubuna (p

The purpose of this study was to investigate the effects of two different acute stress protocols, such as restraint and cold restraint stress, on coagulation indicators in rats. The study was conducted in 18 male Wistar albino rats aged 8-10 weeks with a body weight of 180-220 g. After a one-week adaptation period, the rats were randomly divided into three groups (n=6/group). The animals in the control group were not exposed to any stress. Rats in the restraint group were housed in restrainer designed for rats, and their movement was restricted for 2 hours at room temperature. Rats in the cold restraint group were kept in the restrainer at +4°C for 2 hours. Blood samples were collected by cardiac puncture under ketamine and xylazine anesthesia in Vacutainer® tubes containing 3.2% sodium citrate (0.109 M trisodium citrate). Coagulation indicators (aPTT, PT, INR, fibrinogen, and D-dimer) were analyzed using an automated analyzer (Roche Cobas t511, Switzerland). Although acute stress (restraint and cold restraint stress) had no effect on aPTT and D-dimer levels (p>0.05), it increased PT and INR values (p