Antioxidants are known to restrains various tissue damage caused by the administration of carbon tetrachloride (CCl4). This study examined whether melatonin (MEL), a molecule known to have antioxidant properties, has a protective effect on the rat soleus muscle, where toxic damage is caused by the application of CCl4. In the study, eighteen albino-type male Wistar rats were used and divided into three groups as Control Group (group 1), CCl4 group (group 2) and CCl4 + MEL group (group 3). End of the 12 weeks, blood samples were taken as intracardiac from the rats under ketamine/rompun anesthesia, and the soleus muscles of the rats were removed. Tissue samples were subjected to routine preparation procedures for light microscopy. Sections 5 µm thick taken and stained with hematoxylin-eosin (HE) for histopathological examinations and Masson’s Trichrome stain for fibrosis formations. In conclusion, the CCl4 group displayed muscular hypertrophy, fiber orientation dysfunction and atrophy in some areas. In addition, fibrosis was spotted around the venous and nerve plexuses. In contrast to the CCl4 group, the melatonin group displayed no fibrosis and maintained tissue integrity. Therefore, when comparing CCl4+MEL and CCl4 groups, it was observed that melatonin had a stabilizing or even curative effect on the injuries.
Muscardinus avellanarius, one of the thirty species of the Gliridae family, is found in areas covered with deciduous forests, with a range stretching from Bursa (Uludağ) to Trabzon in Türkiye. Hazel Dormouse, classified as an endangered species and characterized by their deep hibernation patterns, possess significant value as bioindicators of environmental change. In this study, a macro-anatomical evaluation of the skeletal structure of forty-six specimens collected from the Eastern and Western Black Sea Regions between 1979 and 1983 were conducted. The evaluation revealed that the whole skeleton of Muscardinus avellanarius consisted of 225 bones. The morphometric variances and variations between the Eastern Black Sea and Western Black Sea specimens were detected by defining the skull and baculum bones that hold taxonomic value.
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