Sugammadex is a new generation drug that has led to significant changes in the practice of anesthesia. However, its effects on fetal development are not yet fully known. The aim of this study is to investigate the teratogenic effects of sugammadex on neural tube and embryonic development in early chick embryos. In this study, 50 0-day fertile specific non-pathogenic (SPF) eggs were used. Fifty eggs were divided into 5 different groups, each consisting of 10 pieces. While no substance was given to the control group at the 28th hour of the study, 4 different doses of sugammadex were administered to the experimental groups, respectively 2, 4, 8, 16 mg/kg. Cranio-caudal lengths of embryos, somite numbers, average number of argyrophilic nucleolar regulatory regions (AgNOR) per nucleus, total AgNOR area/total nuclear area (TAA/NA) ratios, Caspase-3 H-Score results, and presence of neural tube defect were compared among the groups. While the mean cranio-caudal lengths, somite counts, TAA/NA ratios and AgNOR counts of the embryos were found to be statistically significantly lower than the control group, Caspase-3 H-Score mean results were found to be significantly higher (p < .05). In addition, it was observed that there was an increase in neural tube patency and developmental delay. As a result, sugammadex crossing the placenta was revealed to increase the release of proapopitotic molecules and disrupt the developmental stages of embryos. Thus, it was determined that sugammadex in increased developmental delay and incidence of neural tube defects in early chick embryos with increased dose dependent. Despite these results, the effects of sugammadex on fetal development in in vivo and in vitro environments should be studied with further studies.

Introduction: The therapeutic effect of different doses of the traditional aqueous extract of dried leaves of yerba mate (Ilex paraguariensis A. St.-Hil.) was investigated in an experimental cataract model in chicken embryos. Methods and Results: LC-MS/MS analysis allowed the identification and quantification of 53 metabolites. In the hydrocortisone-induced cataract model, lenses were examined morphologically after treatment and parameters related to oxidative stress (total antioxidant/oxidant status (TAS/TOS), glutathione (GSH), and malondialdehyde (MDA)) were evaluated. Antiproliferative cell nuclear antigen (PCNA) and caspase-3 H-scores were determined and crystallin alpha A (CRYAA) gene expression in the lenses was measured by RT-PCR. The degree of cataract decreased in all treatment groups. While there was no significant difference in TAS levels compared to the negative control, TOS, GSH, and MDA levels were dose-dependently regulated. Treatment groups other than the high-dose group regulated the decrease in PCNA and the increase in caspase-3. CRYAA gene expression increased significantly only at the lowest dose. Conclusion: YM, which is becoming increasingly popular as a traditional tea, showed a therapeutic effect on hydrocortisone-induced cataracts in chicken embryos at relatively low doses.

Amaç: Bu çalışmada dimenhidrinat’ın erken dönem civciv embriyo modelinde nöral tüp gelişimi üzerindeki etkilerinin araştırılması amaçlanmıştır. Gereç ve Yöntem: Çalışmada 32 fertil, spesifik patojen olmayan yumurta kullanıldı. Tüm yumurtalar her bir grupta 8 adet olacak şekilde dört gruba ayrıldı. İnkübasyonun 28. saatinde deney gruplarına üç farklı dozda (0,7, 1,4, 2,1 mg/kg) dimenhidrinat ve kontrol grubuna serum fizyolojik enjekte edildi. İnkübasyonun 48. saatinde tüm embriyolar diseke edildi ve ışık mikroskobu altında histolojik olarak değerlendirildi. Bulgular: Kontrol, düşük, orta ve yüksek doz grubu embriyoları morfolojik olarak değerlendirildiğinde, kraniokaudal uzunluk ortalamaları sırasıyla; 8493,73±1342,90 µm, 5743,61±770,3 µm, 5572,62±315,32 µm, 5306,55±1135,99 µm, somit sayıları ortalamaları sırasıyla; 15,91±1,62, 15,38±1,19, 15,13±0,83, 10,63±5,15‘dir. Dimenhidrinat dozundaki artışa bağlı olarak kraniokaudal uzunluklarının ve somit sayılarının azaldığı tespit edildi. Dimenhidrinat doz artışına bağlı olarak nöral tüp açıklığının arttığı belirlendi . Sonuç: Bu çalışmada, erken dönem civciv embriyo modelinde dimenhidrinat uygulanan gruplarda doz artışına bağlı olarak nörogenezisin ve morfolojik gelişimin olumsuz etkilendiği görüldü.

Objective: Neural tube defects are one of the congenital malformations of the central nervous system. Although the factors that cause the development of neural tube defects and their mechanisms of action are still not clearly explained, genetic predisposition, drug use and some environmental factors are thought to play a role. In this study, it was aimed to investigate the effects of zuclopenthixol acetate (ZA) on neural tube development in a chick embryo model. Methods: Fourty specific pathogen-free (SPF) eggs were used in the study. The eggs were incubated for 28 hours and divided into four groups of 10 eggs each. At the end of the 28th hours, saline was injected to the control group, while ZA was administered subblastodermically to the experimental groups in 3 different doses (0.7, 1.4, 2.1 mg/kg). At the end of the 48th hours, all the eggs were opened and the embryos were dissected from the embryonic membranes and evaluated morphologically and histopathologically. Results: When the study groups were evaluated according to the neural tube positions (open or closed), it was found that the neural tube patency increased depending on the ZA dose, which was statistically significant (p < 0.05). In addition, morphological developments of embryos were evaluated. Compared to the control group, a statistically significant decrease was observed in the mean somite numbers in all ZA-treated groups, while a significant decrease was found in the mean cranio-caudal length only in the high-dose group. Conclusion: In this study, it was observed that neural tube and morphological development were adversely affected in the groups treated with ZA in the chick embryo model. It was shown that neural tube closure defects in embryos increased in direct proportion with ZA doses. However, we believe that it will not be possible to fully adapt the results of this study, which was carried out in the chick embryo model, to humans and that more comprehensive research should be conducted.

The use of three-dimensional (3D) models, created using data obtained from radiological images, has significantly increased in recent years across the fields of medicine and health. The digitization of these models primarily utilizes open-source or commercial software. However, while the use of commercial software presents a significant economic burden, questions remain regarding model accuracy and output quality in open-source solutions. Therefore, this study aims to evaluate the morphometric accuracy of 3D radius models created using open-source medical software (InVesalius®, ITK-SNAP®, Seg3D®, and 3D Slicer®) by comparing them with gold standard (dry bone) measurements. Computed Tomography images of 15 dry human radius bones were used to generate the 3D digital models. These images were used to obtain 3D digital models via four different open-source software programs. Model lengths were calculated using MeshLab®, and volumes were calculated using Mimics® software. For gold standard comparison, the actual bone lengths were measured using digital calipers, and volumes were measured based on the Archimedes Principle.As a result, successful 3D digital radius models were created with all four programs. When the obtained measurements were compared with the gold standard values, no statistically significant difference was found between the programs (p > 0.05). Nevertheless, only the 3D Slicer® software demonstrated a high level of agreement in volume measurements (Cronbach's Alpha: 0.996; 95% CI: 0.988–0.999), standing out among the open-source medical software options.