Publications by authors named "I S Romanova"
The approaches to correct thyroid deficiency include replacement therapy with thyroid hormones (THs), but such therapy causes a number of side effects. A possible alternative is thyroid-stimulating hormone (TSH) receptor activators, including allosteric agonists. The aim of this work was to study the effect of ethyl-2-(4-(4-(5-amino-6-(-butylcarbamoyl)-2-(methylthio)thieno[2,3-d]pyrimidin-4-yl)phenyl)--1,2,3-triazol-1-yl) acetate (TPY3m), a TSH receptor allosteric agonist developed by us, on basal and thyroliberin (TRH)-stimulated TH levels and the hypothalamic-pituitary-thyroid (HPT) axis in male rats with high-fat diet/low-dose streptozotocin-induced type 2 diabetes mellitus (T2DM).
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- RORA is a gene linked to the development and function of the cerebellum, and this study explores the largest group of individuals with RORA-related neurodevelopmental disorders (RORA-NDD).
- The study involved 40 participants with various pathogenic variants of RORA, revealing a range of clinical features including developmental and intellectual disabilities, as well as cerebellar symptoms that can vary in onset and severity.
- Findings indicate that certain missense variants are associated with more severe cerebellar issues, and common elements of RORA-NDD include developmental disabilities, cerebellar symptoms, and different types of myoclonic epilepsy.
In experiments on rats, we studied the effect of 5-day intraperitoneal (15 mg/kg/day) and oral (40 mg/kg/day) administration of compound TPY3m, a stimulator of the production of thyroid hormones by the thyroid gland developed by us, on the blood levels of thyroxine, triiodothyronine, and thyroid-stimulating hormone and on morphology of the thyroid gland. With both routes of administration, TPY3m caused a sustained moderate elevation of thyroid hormones, mainly thyroxine, with little effect on the level of thyroid-stimulating hormone. TPY3m did not reduce the stimulating effect of thyroliberin on the levels of thyroid hormones and had no damaging effect on the thyroid gland.
View Article and Find Full Text PDFMarinobufagenin (MBG) is implicated in chronic kidney disease, where it removes Fli1-induced inhibition of the collagen-1. We hypothesized that (i) in nephrectomized rats, aortic fibrosis develops due to elevated plasma MBG and inhibited Fli1, and (ii) that the antibody to MBG reduces collagen-1 and improves vasodilatation. A partial nephrectomy was performed in male Sprague-Dawley rats.
View Article and Find Full Text PDFThe spin kinetics of adsorbed and liquid He in contact with a mixture of LaF (99.67 %) and DyF (0.33 %) 20 nm powders at temperatures of 1.
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