MicroRNA Analysis in Meningiomas with Different Degrees of Tissue Stiffness: A Potential Tool for Effective Preoperative Planning.

Background And Objectives: Meningioma, the most common primary intracranial tumor, presents challenges in surgical treatment because of varying tissue stiffness. This study explores the molecular background of meningioma stiffness, a critical factor in surgical planning and prognosis, focusing on the utility of microRNAs (miRNAs) as diagnostic biomarkers of tissue stiffness.

Methods: Patients with meningiomas treated surgically at the University Hospital Brno were included in this study.

Hydrogen Inhalation Reduces Lung Inflammation and Blood Pressure in the Experimental Model of Pulmonary Hypertension in Rats.

Hydrogen has been shown to exhibit selective antioxidant properties against hydroxyl radicals, and exerts antioxidant and anti-inflammatory effects. The monocrotaline-induced model of pulmonary hypertension is suitable for studying substances with antioxidant activity because oxidative stress is induced by monocrotaline. On day 1, male Wistar rats were subcutaneously injected with a water-alcohol solution of monocrotaline or a control with an only water-alcohol solution.

Smooth Muscle Actin as a Criterion for Gravisensitivity of Stomach and Jejunum in Laboratory Rodents.

Smooth muscle tissue (SMT) is one of the main structural components of visceral organs, acting as a key factor in the development of adaptive and pathological conditions. Despite the crucial part of SMT in the gastrointestinal tract activity, the mechanisms of its gravisensitivity are still insufficiently studied. The study evaluated the content of smooth muscle actin (α-SMA) in the membranes of the gastric fundus and jejunum in C57BL/6N mice (30-day space flight), in Mongolian gerbils (12-day orbital flight) and after anti-orthostatic suspension according to E.

Combined histochemical approach in assessing tryptase expression in the mast cell population.

To increase the efficiency of interpretation of mast cell's contribution to the state of a specific tissue microenvironment, it is necessary to detail the molecular composition of their secretome and analyze the pathways of degranulation. Developed method of combining immunomorphological and histochemical staining protocols contributes to the most objective detection of the integral level of tryptase expression in the intraorgan population of the skin mast cells. Novel technique for tryptase detection expands the possibilities of morphological analysis, provides researchers with additional data on the structure of the mast cell population and helps visualize the processing and cytological features and structural targets of tryptase during the development of adaptive and pathological reactions.

[Hypertensive disease and metabolic syndrome: application of metoprolol].

The aim of this work was to study effects of metoprolol on structural and functional characteristics of left ventricle (LV), cerebral circulation (CC), microcirculation (MC), lipid spectrum, rheologic and viscous properties of blood in patients with grade II-III hypertensive disease (HD) and metabolic syndrome. 65 patients in this condition (ESH/ESC, 2007) were given metoprolol (100-150 mg/d) and indapamide (1.5 mg/d) for 6 months.

[The effect of long-term treatment with nadolol on serum levels of thyroid hormones and thyrotropin in patients with hypertension].

In 20 males with Stage II hypertensive disease, effects of 2-week-, 2-, and 6-month monotherapy with nadolol given in doses 40 to 160 mg daily were examined on the levels of thyroidal hormones (T3 and T4) and thyroid-stimulating hormone. At the all stages of the therapy, the mean values of the examined parameters were significantly unchanged. Nadolol was found to cause a decrease in T3 concentrations at its high baseline values (r = -0.