Patterns of avian tree usage in the primeval temperate forests of Białowieża National Park.

Species distribution and resource utilization are a fundamental aspect of ecology. By analyzing the tree space usage by birds and determining the species composition of birds across different parts of trees, our study could shed light on the mechanisms shaping co-occurrence patterns in bird communities. Therefore, our study aimed to determine the species composition of birds across different parts of trees.

EXPERIMENTAL STUDY OF BONE DENSITY IN PATIENTS WITH CONGENITAL PSEUDOARTHROSIS OF THE TIBIA BEFORE AND AFTER SURGERY.

Objective: The aim: Determine the changes in bone density that occur in the cortical layer of the tibia in patients with CPT after surgical treatment due to radiography data.

Patients And Methods: Materials and methods: The study was performed on X-rays of the tibia of three patients with CPT, aged 5 to 7 years. X-rays were taken before surgery and 1 year after surgery.

[THE INFLUENCE OF VARUS DEFORMITY ATMIDDLE THIRD OF FEMURON THE STRENGTH OF THE LOWER LIMB MUSCLES].

Treatment of post-traumatic deformities is a separate task of orthopedics and traumatology, because for the normalization of injured limb function requires more than realignment of bone fragments followed with their stable fixation. The analysis of post-traumatic deformities pays attention mostly to their influence on the joints. The functional state of the muscles of the damaged segment and limb, in general, is analyzed very seldom and not taken into consideration in the planning of treatment.

First microsatellite markers for the European Robin (Erithacus rubecula) and their application in analysis of parentage and genetic diversity.

The European Robin is a small passerine bird associated with woodlands of Eurasia and North Africa. Despite being relatively widespread and common, little is known of the species' breeding biology and genetic diversity. We used Next Generation Sequencing (NGS) to develop and characterize microsatellite markers for the European Robin, designing three multiplex panels to amplify 14 microsatellite loci.

Osseointegration of porous titanium and tantalum implants in ovariectomized rabbits: A biomechanical study.

Background: Today, biological fixation of uncemented press-fit acetabular components plays an important role in total hip arthroplasty. Long-term stable fixation of these implants depends on the osseointegration of the acetabular cup bone tissue into the acetabular cup implant, and their ability to withstand functional loads.

Aim: To compare the strength of bone-implant osseointegration of four types of porous metal implants in normal and osteoporotic bone in rabbits.

[INFLUENCE OF HIP JOINT CONTRACTS FOR HIPS MUSCULAR].

Objective - to study the effect of hip contractures on the strength of the thigh muscles. Gait analysis was performed in the OpenSim 4.0 program, gait2394 was taken as the basis.

Mechanisms of l-alpha-lysophosphatidylinositol-induced relaxation in human pulmonary arteries.

Aims: l-Alpha-lysophosphatidylinositol (LPI) is an endogenous agonist of G protein-coupled receptor 55 (GPR55) which relaxes mesenteric arteries on activation. The aim of the present study was to determine the influence and underlying mechanisms of LPI-induced relaxation in human pulmonary arteries (hPAs).

Main Methods: Functional studies were performed in isolated hPAs using organ bath technique.

Endocannabinoids modulate G protein-coupled receptor agonist-induced vasoconstriction via a negative feedback mechanism.

Objectives: The endocannabinoid (eCB) system centrally and peripherally regulates cardiovascular parameters, including blood pressure, in health and disease. The relationship between G protein-coupled receptor activation, regulation of eCBs release (mainly 2-arachidonoylglycerol) and subsequent CB receptor activation was initially observed in the central nervous system. Here, we review the latest findings from systemic physiological studies which include for the first time data from pulmonary arteries.

The influence of DOCA-salt hypertension and chronic administration of the FAAH inhibitor URB597 on K2.3/K3.1-EDH-type relaxation in rat small mesenteric arteries.

The aim of this study was to examine the influence of deoxycorticosterone acetate-salt (DOCA-salt) hypertension and chronic treatment with the fatty acid amide hydrolase inhibitor, URB597, on small and intermediate conductance calcium-activated potassium channels and endothelium-dependent hyperpolarization (K2.3/K3.1-EDH) in rat small mesenteric arteries (sMAs).

Activation of CB receptors by 2-arachidonoylglycerol attenuates vasoconstriction induced by U46619 and angiotensin II in human and rat pulmonary arteries.

Recent evidence suggests that endocannabinoids acting via cannabinoid CB receptors may modulate vascular responses of various vasoconstrictors in the rodent systemic vasculature. The aim of the study was to investigate whether endocannabinoids modulate the contractile responses evoked by a thromboxane A analog (U46619), angiotensin II (ANG II), serotonin (5-HT), and phenylephrine, which stimulate distinct G protein-coupled receptors (thromboxane, ANG II type 1, 5-HT, and α-adrenergic receptors) in isolated endothelium-intact human and rat pulmonary arteries (hPAs and rPAs, respectively). The CB receptor antagonist AM251 (1 μM) and diacylglycerol lipase (2-arachidonoylglycerol synthesis enzyme) inhibitor RHC80267 (40 μM) enhanced contractions induced by U46619 in hPAs and rPAs and by ANG II in rPAs in an endothelium-dependent manner.

Protective role of cannabinoid CB1 receptors and vascular effects of chronic administration of FAAH inhibitor URB597 in DOCA-salt hypertensive rats.

Aims: This study examined whether the fall in blood pressure (BP) induced by the chronic inhibition of fatty acid amide hydrolase (FAAH) by URB597 in deoxycorticosterone acetate (DOCA-salt) hypertensive rats correlates with endocannabinoid-mediated vascular changes.

Main Methods: Functional studies were performed in isolated endothelium-intact aortas and small mesenteric arteries (sMAs) using organ bath technique and wire myography, respectively.

Key Findings: In the DOCA-salt rats, methanandamide-stimulated relaxation was enhanced in sMAs or diminished in aortas.