Exploring Future Horizons in Osteoarthritis Relief: Unveiling the Potential of Slow-Acting Drugs and Innovative Medications

Introduction:  The existing treatment options for osteoarthritis (OA) fall short of addressing the significant challenges this disease imposes on patients in today's society. It markedly diminishes the quality of life of those affected and is one of the leading causes of disability. While conventional pharmacological interventions such as non-steroidal anti-inflammatory drugs (NSAIDs) and opioids effectively address pain, they are not intended to halt disease progression and are associated with potential health risks. Symptomatic Slow-Acting Drugs for Osteoarthritis (SYSADOA) and innovative medications, rooted in our expanding understanding of OA pathogenesis, offer promising prospects for discovering improved treatment modalities.   State of knowledge:  The evolving understanding of OA's etiology highlights the necessity for tailored treatments that consider distinct disease phenotypes. This review critically examines SYSADOA, specifically focusing on chondroitin sulfate, glucosamine, and avocado-soybean unsaponifiables, as agents designed to address the underlying pathology of OA. Chondroitin sulfate demonstrates potential disease-modifying effects, however with conflicting study results that underscore the extent of its efficacy. Glucosamine exhibits varying disease-modifying effects, with short-term trials demonstrating more promising outcomes in pain reduction. Avocado-soybean unsaponifiables show promise in alleviating knee OA pain, yet their impact on hip OA symptoms remains inconclusive. The review extends its scope to novel drugs with potential disease-modifying effects, exploring proteinase inhibitors, fibroblast growth factors, Wnt-signaling pathway inhibitors, senolytic agents, anti-nerve growth factor agents, and transforming growth factor-β.   Conclusions:  Although preliminary studies indicate potential for certain novel agents, challenges and adverse effects necessitate further investigation through rigorous, high-quality research

Selenium-induced improvements in the ornamental value and salt stress resistance of Plectranthus scutellarioides (L.) R. Br.

Ornamental plants growing in urban areas are often exposed to salt stress that negatively affects their decorative value. Enhancement of their salt resistance to retain a high decorative value despite salt stress has therefore high practical importance. In our study, the exposure of Plectranthus scutellarioides (L.) R. Br. to NaCl-induced moderate (40 mM) or severe salt stress (80 mM) resulted in a number of stress responses including reduced growth parameters, decreased concentration of photosynthetic pigments, and an increase in the accumulation of anthocyanins and free proline. These changes were partially compensated for by the application of selenium (5 µM as Na2SeO4) to the growth medium. However, the beneficial effect of selenium on the growth and physiological parameters of P. scutellarioides was manifested only at the moderate level of salt stress. Under the severe salt stress, the application of selenium was not able to alleviate the phytotoxic effect of NaCl

Connection between gut microbiota and Anorexia Nervosa. Literature review

Introduction: Anorexia Nervosa (AN) stands as a severe mental disorder characterized by the highest mortality rate within the realm of psychiatric conditions. Its etiology encompasses genetic, neurobiological, environmental, and developmental factors. Recent investigations have shed light on the potential impact of the gut microbiota on the genesis and progression of AN. Aim of the Study: The aim of this paper is to provide a comprehensive review of the existing findings on relationship between gut dysbiosis and AN. The intention is to present new perspectives that contribute to a more detailed understanding of the multifaceted nature of this serious disorder. Description of the State of Knowledge: The gut microbiota takes a central role in modulating various physiological processes. Dysbiosis, which refers to an imbalance in gut microbiota composition, has recently drawn attention because of its association with several mental disorders. In the context of AN, studies have shown reduced microbial diversity and notable changes in specific bacterial populations. The influence of the gut microbiota on AN includes disturbances in the digestive system, changes in eating behaviours, and associations with related conditions such as anxiety and depression. Mechanisms such as the gut-brain axis, hormonal regulation and molecular mimicry contribute to these associations. Conclusions: Recognition of the pivotal role played by the gut microbiota in AN opens up avenues for potential therapeutic interventions. Pro- and prebiotics, along with fecal transplantation, emerge as promising modalities in the treatment of AN. Ongoing research is essential to further elucidate this evolving field, ultimately facilitating the development of targeted interventions for individuals with AN

Metis: the Solar Orbiter visible light and ultraviolet coronal imager

Aims. Metis is the first solar coronagraph designed for a space mission and is capable of performing simultaneous imaging of the off-limb solar corona in both visible and UV light. The observations obtained with Metis aboard the Solar Orbiter ESA-NASA observatory will enable us to diagnose, with unprecedented temporal coverage and spatial resolution, the structures and dynamics of the full corona in a square field of view (FoV) of ±2.9° in width, with an inner circular FoV at 1.6°, thus spanning the solar atmosphere from 1.7 R⊙ to about 9 R⊙, owing to the eccentricity of the spacecraft orbit. Due to the uniqueness of the Solar Orbiter mission profile, Metis will be able to observe the solar corona from a close (0.28 AU, at the closest perihelion) vantage point, achieving increasing out-of-ecliptic views with the increase of the orbit inclination over time. Moreover, observations near perihelion, during the phase of lower rotational velocity of the solar surface relative to the spacecraft, allow longer-term studies of the off-limb coronal features, thus finally disentangling their intrinsic evolution from effects due to solar rotation. Methods. Thanks to a novel occultation design and a combination of a UV interference coating of the mirrors and a spectral bandpass filter, Metis images the solar corona simultaneously in the visible light band, between 580 and 640 nm, and in the UV H