Effect of 30 years of road traffic abandonment on epiphytic moss diversity

Road traffic emits a cocktail of pollutants that can influence the vegetation and plant diversity in neighboring areas. However, the recovery potential of bryophytes after traffic abandonment is still little explored. In addition, the effects of the main pollutants of road verges, such as metals and salinity, on moss flora need to be investigated. In our study, we compared the moss richness and diversity in two closely related veteran tree allees of high conservation importance. The allees in Gryżów and Lubrza, Poland, were chosen because of their similarity in age, geographical location, type of surrounding areas, and tree species. The only difference was that the trees in Gryżów had not been exposed to direct road pollution for almost 30 years. The moss richness and diversity differed significantly between the sites. Altogether, 20 moss species were recorded on 229 trees, 17 species in Gryżów (abandoned road), and 13 in Lubrza (busy road). We found considerable differences between moss cover on the road-facing and opposite sides of tree trunks. In Lubrza, mosses on the road-facing side were very scarce. The moss cover in Gryżów was highly balanced between trunk sides as well as among trunk heights. Typical epiphytic species such as Bryum moravicum, Dicranoweisia cirrata, Leskea polycarpa, and Orthodicranum tauricum preferred the Gryżów tree stands, where they were present in numbers almost twice as high as that at Lubrza. The study shows that constructing a bypass road could be an effective conservation measure for veteran tree protection with their epiphytic moss flora

Sleep duration and cardiovascular outcomes

Cardiovascular diseases (CVD) are the leading cause of death worldwide, causing approximately 17.9 deaths annually. Their risk factors are mainly related to an inappropriate lifestyle and include, among others, low physical activity, obesity, hypertension or type 2 diabetes. Nowadays, there is an increase in the incidence of CVD as well as sleeping disorders, so many studies have focused on finding the connection between these phenomena. The impact of sleep duration on the occurrence of cardiovascular diseases and their risk factors was analyzed based on a systematic analysis of the literature. The review was carried out using keywords, based on data contained in the Google Scholar search engine database, in the PubMed scientific database and medical electronic journals. The analyzed studies indicate that sleep duration, its both excessive shortening and lengthening, as well as poor quality, may be associated with CVD, their risk factors and increased overall mortality. Researchers point to the connection between sleep duration and development of hypertension, obesity and type 2 diabetes, with short sleep identified as a stronger risk factor. In addition long sleep was associated with poor health and overall worse results of the subjects more often than short sleep. This suggests that long sleep may not be the cause, but a consequence of yet undiagnosed, coexisting chronic diseases. The results indicate the need to assess sleep disorders as a goal for primary and secondary prevention of CVD and reduction of their risk factors. The importance of long sleep remains ambiguous, whether it is the reason for health deterioration or results from it and requires further research. Large intervention studies are also still needed to assess whether improvements in sleep duration and its quality can reduce cardiovascular risk and improve long-term health outcomes

The Influence of Biomass Ash on the Migration of Heavy Metals in the Flooded Soil Profile - Model Experiment

Soils that have been exposed to flood waters can be heavily polluted by inorganic and organic compounds. They are mainly compounds which appear in dissolved or suspended form flowing together with heavily laden floodwater, as well as compounds created as a result of reactions in the soil profile, mostly due to anaerobic transformation of organic matter. Heavy metals brought with flood waters are absorbed by the soil and also washed out from flood sediments by precipitation when the flood recedes. This paper presents the results of research on the effects of fertilization with ash from incineration or pyrolysis of biomass on the migration process of heavy metals (Zn, Cu, Cr, Ni, Pb, Cd, Mn) in the arable layer of soil. It has been shown that the metals in the flood sediment migrate actively in the soil profile what leads to the enrichment of the soils, also in the case of the soil fertilization with biomass ash

The Influence of Biomass Ash on the Migration of Heavy Metals in the Flooded Soil Profile - Model Experiment

Soils that have been exposed to flood waters can be heavily polluted by inorganic and organic compounds. They are mainly compounds which appear in dissolved or suspended form flowing together with heavily laden floodwater, as well as compounds created as a result of reactions in the soil profile, mostly due to anaerobic transformation of organic matter. Heavy metals brought with flood waters are absorbed by the soil and also washed out from flood sediments by precipitation when the flood recedes. This paper presents the results of research on the effects of fertilization with ash from incineration or pyrolysis of biomass on the migration process of heavy metals (Zn, Cu, Cr, Ni, Pb, Cd, Mn) in the arable layer of soil. It has been shown that the metals in the flood sediment migrate actively in the soil profile what leads to the enrichment of the soils, also in the case of the soil fertilization with biomass ash

Metallic Orthodontic Materials Induce Gene Expression and Protein Synthesis of Metallothioneins

Background: Due to the long-term contact with metallic elements of orthodontic appliances, the potential influence of released metal ions on living organisms and the type of induced changes was investigated. Materials and Methods: Twenty-four young domestic pigs classified in two groups (experimental and control) were chosen as the object of this study. In the experimental group of animals, two metal plates consisting of orthodontic bands representing the mass of orthodontic appliance were mounted on the internal side of the cheek for six months. The liver, lung, and brain samples were taken post mortem from animals of both groups. The gene expression of two isoforms of metallothionein (MT-1 and MT-2) were investigated using the qPCR technique. Protein expression was confirmed by the Western blot and ELISA techniques. Results: The differences in metallothionein concentrations were observed in the lung and brain in the group of experimental animals, but not in the liver. The expression of MT-1 and MT-2 genes in the experimental vs. control group (respectively) was as follows: lung MT-1 1.04 vs. 1.11, MT-2 0.96 vs. 1.05, liver MT-1 0.89 vs. 0.91 vs. 1.12, MT-2 0.91 vs. 1.05, brain MT-1 1.24 vs. 1.20, and MT-2 0.955 vs. 0.945. These results were confirmed by gene activity, which was tested by qPCR. This increased the activity of metallothionein genes in the lungs and brain as a consequence of the release of metal ions into these tissues. The possible effects of detected change in metallothionein-2 gene expression could be the alteration of physiological functions of lung tissue. Conclusions: The effect of long-term exposure to metal orthodontic appliances on metallothioneins gene expression, as well as the induction of protein synthesis was proved

Synthesis, Immunosuppressive Properties, and Mechanism of Action of a New Isoxazole Derivative

This work describes the synthesis of a new series of isoxazole derivatives, their immunosuppressive properties, and the mechanism of action of a representative compound. A new series of N′-substituted derivatives of 5-amino-N,3-dimethyl-1,2-oxazole-4-carbohydrazide (MM1–MM10) was synthesized in reaction of 5-amino-N,3-dimethyl-1,2-oxazole-4-carbohydrazide with relevant carbonyl compounds. The isoxazole derivatives were tested in several in vitro models using human cells. The compounds inhibited phytohemagglutinin A (PHA)-induced proliferation of peripheral blood mononuclear cells (PBMCs) to various degrees. The toxicity of the compounds with regard to a reference A549 cell line was also differential. 5-amino-N′-(2,4-dihydroxyphenyl)methylidene-N,3-dimethyl-1,2-oxazole-4-carbohydrazide (MM3) compound was selected for further investigation because of its lack of toxicity and because it had the strongest antiproliferative activity. The compound was shown to inhibit lipopolysaccharide (LPS)-induced tumor necrosis factor (TNF α) production in human whole blood cell cultures. In the model of Jurkat cells, MM3 elicited strong increases in the expression of caspases, Fas, and NF-κB1, indicating that a proapoptotic action may account for its immunosuppressive action in the studied models

Human mucosal epithelium involvement in prenatal growth of maxillary sinuses

The mechanism of formation of the maxillary sinuses is not elucidated as yet, although their morphology during embryogenesis is well described. In the prenatal period, the pneumatization hypothesis is not valid. As the molecular approach to this problem is difficult to apply to human samples, we decided to apply immunohistochemical reactions to analyse the synthesis of selected molecules involved in the rebuilding of tissues. Hematoxylin-eosin staining and immunohistochemical reactions for the detection of MMPs (matrix metalloproteinases), one of their inhibitor TIMP 1 (tissue inhibitor of MMPs), BMP 6 (bone morphogenetic protein 6) and TGF-_ (transforming growth factor _) were performed in the epithelium the mucosa of the maxillary sinuses of several human foetuses from the collection of the Anatomical Institute. The age of the foetuses was 8, 11, 15, 16, 17, 18 and 22 weeks. An intense positive reaction for MMPs 1,2 and 3 was found in the mucosal epithelium of developing sinuses in the whole series of foetuses was found. The reaction was more intense in advanced stages of foetal development. Tissue derived inhibitor TIMP was hardly detectable, regardless of the age of samples. However, the intensity of the reaction for TGF ß was strong in both young and more mature sinus epithelium. The presence of BMP 6, a member of the superfamily of TGF ß, was detected although the intensity of this reaction in the epithelium was rather weak. Both TGFß and BMP 6 are well known as regulators of differentiation in the course of organogenesis. Results of the histochemical analysis suggest the possible involvement of the epithelium in the growth and formation of the maxillary sinuses. The main argument for this is intense reaction for MMP proteases which, as in bone, regulate the turnover and rebuilding processes of the extracellular matrix (ECM)

The Influence of human maxillary sinus mucosa on maxillary bone resorption during pneumatisation proces

The aim of this study was an immunohistological investigation of the TGFß (transforming growth factor), BMP6 (bone morphogenetic protein), MMPs 1-3 (metalloproteinases) and TIMP-1 (tissue inhibitors of metalloproteinases) in the following tissue compartments: maxillary sinus epithelium-mucosa - maxillary bone - oral mucosa as well as a radiometric assessment of the anterior and posterior segments of maxillary bone. We were able to confirm the involvement of epithelium- mucosa in the growth and formation of maxillary sinuses and their pneumatisation in physiological conditions as well as in chronic allergic sinusitis. This is connected with the intense synthesis of MMP proteases, which, like in bones, regulates the turnover and rebuilding process of surrounding soft tissues. This is true for the control samples as well as for the samples taken from the cases of allergic maxillary sinusitis during surgery

Sleep duration and cardiovascular outcomes

Cardiovascular diseases (CVD) are the leading cause of death worldwide, causing approximately 17.9 deaths annually. Their risk factors are mainly related to an inappropriate lifestyle and include, among others, low physical activity, obesity, hypertension or type 2 diabetes. Nowadays, there is an increase in the incidence of CVD as well as sleeping disorders, so many studies have focused on finding the connection between these phenomena. The impact of sleep duration on the occurrence of cardiovascular diseases and their risk factors was analyzed based on a systematic analysis of the literature. The review was carried out using keywords, based on data contained in the Google Scholar search engine database, in the PubMed scientific database and medical electronic journals. The analyzed studies indicate that sleep duration, its both excessive shortening and lengthening, as well as poor quality, may be associated with CVD, their risk factors and increased overall mortality. Researchers point to the connection between sleep duration and development of hypertension, obesity and type 2 diabetes, with short sleep identified as a stronger risk factor. In addition long sleep was associated with poor health and overall worse results of the subjects more often than short sleep. This suggests that long sleep may not be the cause, but a consequence of yet undiagnosed, coexisting chronic diseases. The results indicate the need to assess sleep disorders as a goal for primary and secondary prevention of CVD and reduction of their risk factors. The importance of long sleep remains ambiguous, whether it is the reason for health deterioration or results from it and requires further research. Large intervention studies are also still needed to assess whether improvements in sleep duration and its quality can reduce cardiovascular risk and improve long-term health outcomes