The two land snail species Trochulus striolatus (C. Pfeiffer, 1828) and Xerocampylaea erjaveci (Brusina, 1870) are distantly-related within the Hygromiidae, and while geographically separated, have similar habitats. They are conchologically very similar in their shape. The growth, reproductive strategies and life histories of these species reared under constant laboratory conditions were studied in order to detect any similarities and differences between the species. In both species, isolated individuals did not reproduce; thus, uniparental reproduction appears not to occur. While morphological characteristics, such as the egg size and number of whorls at hatching and at sexual maturity, were relatively constant and similar in both species, there were differences in terms of the growth rate, age at first reproduction, output of eggs over the lifespan and in the pattern of mortality. While the range of variation within species was much greater in relation to these traits, it appears that X. erjaveci grows faster than T. striolatus: they become adults earlier; they have a shorter lifespan as adults, but less juvenile mortality; and individuals lay many more clutches, over a similar time span, laying more than five times as many eggs as T. striolatus over the course of the experiment. Under these admittedly artificial conditions, the individuals of both species (although more so in X. erjaveci) can lay more than one clutch over a period of more than two years, in an environment where no winter conditions were imposed. These results, which can also be compared with similar data for Trochulus hispidus, a species closely-related to T. striolatus, emphasise the fact that life histories, even among species of a similar size and habitat, may differ considerably. They also illustrate the difficulties inherent in laboratory studies of life histories.

We present the first record of Milnesium guanyinensis in the Palearctic region (S Poland), along with two other Milnesium species (M. berladnicorum and M. inceptum) that are reported as new for Poland. While recent studies have provided empirical evidence that tardigrades belonging to the genus Milnesium exhibit zoogeographical patterns, and only some taxa are recognised as truly cosmopolitan, all of the species re- ported in our study have broad distribution ranges. We contextualise our findings within the current under - standing of tardigrade phylogeography and discuss the potential for anthropogenic long-distance dispersal. The current study increases the number of known Milnesium species in Poland from four to seven and raises the total number of tardigrades in Poland to 118. All of the observations are based on an integrative taxonomy approach, which combines a morphological analysis with DNA barcoding.

In this study, the effects of Genomic Best Linear Unbiased Prediction (GBLUP) and Bayesian alphabet methods (A, B, C and Cp) were investigated on genomic predictions and indirect estimations in the Polish Holstein Friesian (PHF) dairy cattle population. The study analysed the milk yield data (MY, kg/lactation) and 13,481 single nucleotide polymorphism (SNP) genotype records from 534 Polish Holstein Friesian (PHF) dairy cattle raised on private farms in Poland. The quality control of the genotypic data included the removal of monomorphic loci and the exclusion of samples with SNP missing rates exceeding 10%. After the quality control, 493 animals and 13,250 SNPs were retained for the genomic prediction. Marker effects and genomic breeding values (GEBVs) were calculated using the Bayesian alphabet and GBLUP. The results indicated that, for the milk yield of PHF cows, the Bayes C method outperformed other approaches. This method achieved the highest prediction accuracy among the evaluated methods. Additionally, the Bayes C method required the shortest computational time, underscoring its efficiency.

Coronary heart disease (CHD) is one of the most commonly seen cardiovascular conditions across the globe. Junctional cadherin 5 associated (JCAD) protein is found in the intercellular junctions of endothelial cells and linked to cardiovascular diseases. Nonetheless, the influence of JCAD on cardiomyocyte injury caused by CHD is unclear. A model of H2O2-induced H9c2 cell injury was constructed, and JCAD mRNA and protein levels were assessed by qRT-PCR and Western blot. The impacts of JCAD on the proliferation or apoptosis of H9c2 cells were explored by CCK-8 assay, Western blot and TUNEL staining. The effect of JCAD on the inflammatory response and vascular endothelial function of H9c2 cells was detected using ELISA kits. The levels of Wnt/β-catenin pathway-related proteins were assessed by Western blot. H2O2 treatment led to a rise in the levels of JCAD in H9c2 cells. Over-expression of JCAD promoted H2O2-induced cellular injury, leading to notably elevated contents of inflammatory factors, along with vascular endothelial dysfunction. In contrast to over-expression of JCAD, silencing of JCAD attenuated H2O2-induced cellular injury and inhibited apoptosis, inflammatory response and vascular endothelial dysfunction. Notably, JCAD could regulate the Wnt/β-catenin pathway, while DKK-1, Wnt/β-catenin pathway antagonist, counteracted the enhancing impact of JCAD over-expression on H2O2-induced H9c2 cell injury, further confirming that JCAD acts by regulating the Wnt/β-catenin pathway. In summary, over-expression of JCAD promoted H2O2-induced H9c2 cell injury by activating the Wnt/β-catenin pathway, while silencing of JCAD attenuated the H2O2-induced cell injury.

Chlamydia psittaci pneumonia (CPP) is a lung disease caused by the infection with the Chla-mydia psittaci bacterium, which can lead to severe acute respiratory distress syndrome and systemic symptoms. This study explored the specific mechanisms underlying the impact of reactive oxygen species (ROS) on the Th17/Treg balance in CPP. The levels of ROS and the differentiation ratio of Th17/Treg in the peripheral blood of healthy individuals and CPP patients were measured using ELISA and flow cytometry, respectively. The association between the ROS levels and Th17/Treg was assessed using Pearson correlation analysis. The ROS levels and the Th17/Treg ratio were measured in CD4+ T cells following H2O2 treatment and NLRP3 inhibition. The effects of H2O2 treatment and NLRP3 inhibition on the NLRP3/IL-1β/caspase-1 pathway were observed using immunoblotting. Compared to the healthy group, the CPP group exhibited increased levels of ROS in the peripheral blood, an elevated ratio of Th17 differentiation, and a decreased ratio of Treg differentiation. ROS levels were positively correlated with the Th17 cell proportion but negatively correlated with the Treg cell proportion. The ROS levels and NLRP3/IL-1β/caspase-1 expression were up-regulated in CD4+ T cells after H2O2 treatment. Furthermore, there was an increase in Th17 differentiation and a decrease in Treg differentiation. Conversely, the NLRP3/IL-1β/caspase-1 pathway inhibition reversed the effects of H2O2 treatment, with no significant change in the ROS levels. ROS regulates the Th17/Treg balance in CPP, possibly through the NLRP3/IL-1β/caspase-1 pathway. This study provides a new perspective on the development of immunotherapy for CPP.

Non-small cell lung carcinoma (NSCLC) represents the majority of lung cancer cases, comprising approximately 85 % of the total. The five-year survival rate for NSCLC patients remains discouragingly low. Recently, immunotherapy has emerged as a promising approach. Nevertheless, only a minority of patients experience considerable benefits from these treatments. This highlights the critical need for effective biomarkers that can predict both patient prognosis and response to immunotherapy. CD8+ T cells play a crucial role in cancer immunotherapy. Their presence within tumours is generally indicative of a favourable prognosis and increased efficacy of immunotherapy. This study was undertaken to identify and authenticate a novel biomarker signature based on CD8+ T-cell marker genes, to prognosticate therapeutic responses in individuals afflicted with NSCLC. This in-depth study was based on a total of 1,200 samples, which included four NSCLC specimens analysed through single-cell RNA sequencing (scRNA-seq), 1,000 NSCLC samples obtained from The Cancer Genome Atlas (TCGA) and 196 NSCLC specimens collected from the GSE37745 cohort. In patients with NSCLC, those presenting a favourable risk profile demonstrated notable elevations in specific immune cells while concurrently exhibiting reductions in other types. CD8+ T cells, with their established role in inducing apoptosis in cancer cells, have emerged as crucial predictors and modulators of treatment strategies for NSCLC patients. The combination of single-cell and bulk RNA sequencing has produced a biomarker signature, emphasizing the CD8+ T cells' crucial role in NSCLC prognosis and treatment.

Herbicides (weed control agents) are used in crops on a massive scale. MCPA (2-methyl-4-chlorophen- oxyacetic acid) is a herbicide used to control weeds in cereals and other crops. The aim of this study was to investigate the toxic effects of an MCPA-based herbicide formulation (Chwastox Extra® 300 SL) in the common carp (Cyprinus carpio). The fish were exposed for 10 days, to a concentration which corresponded to 1 mg/l or 5 mg/l of MCPA. Our analysis showed fluctuations of the haematological parameters during the treatment. Plasma biochemical changes that were statistically significant, i.e.a decrease of the total protein concentration and alanine aminotransferase activity, were observed after 1 day of exposure. No histopathological lesions in the gills, trunk kidney and liver were identified. The results of the present study indicate that Chwastox Extra® 300 SL has a relatively low toxicity for the common carp. It was also observed that the blood indices were more sensitive to the tested herbicide formulation than the microstructure of the selected organs. Further research aimed at studying the effects of Chwastox on water invertebrates and fish of other taxa is recommended.

The aim of the study was to evaluate the differentiation among three goat breeds ? the autochthonous Carpathian goat and the cosmopolitan Alpine and Anglo-Nubian breeds – based on information from microsatellite markers. Blood samples of 64 goats were collected from three farms located in southern Poland. The population structure of the collected goats was investigated using the Bayesian approach, implemented in STRUCTURE 2.3.4. The Pairwise Population Fst analysis revealed that the largest genetic distinction was between the Anglo-Nubian and the Alpine breeds. In each of the analyses carried out, it was observed that the Carpathian breed is genetically more similar to the Alpine breed, while the Anglo-Nubian breed is a separate, much more distinct cluster. It therefore seems reasonable to carry out further research in the context of the genetic relationship between the two goat breeds (Carpathian and Alpine) adapted to the harsh conditions of mountainous areas.

The genusDrepanaphisdel Guercio currently includes 16 species, all of which are found in North America. Representatives of this genus are narrow oligophages associated mainly with plants of the genusAcer.Previous studies have focused only on the morphology of selected species, while not considering their geographical distribution. Among all species, the painted maple aphidDrepanaphis acerifoliaedeserves particular attention, because it represents the broadest range in North America and is the only species of this genus to be found outside of its natural range, i.e. in Europe. Thanks to suitable niche modelling based on a maximum entropy model, we were able to present maps with the potential distribution ofD.acerifoliaein its natural range. In North America, its distribution coincides with the natural range of the host plants (native to the eastern part), as well as the areas where they are planted (the western part). An extrapolation of these results to the area of Europe allowed for the designation of places where the aphids can find suitable climatic conditions for developing and expanding their spatial distribution. The model indicated the Mediterranean basin, almost all of Italy, excluding mountainous areas, Spain, Portugal, France, Belgium, the Netherlands, the western part of Germany, the southeast and central part of Great Britain, Hungary and the Balkan Peninsula. In a more continental view, the model pointed to areas stretching from the middle of eastern Ukraine, including Crimea, through Russia, to northern parts of Kazakhstan along the border with Russia. Additionally, the impact of climate change on the spread of the species within the next 80 years was analysed, both in North America and Europe. Models considering the potential future climate changes indicate thatD.acerifoliaemay find suitable niches further north of its current ranges. In North America, this is mostly areas of eastern Canada, while in Europe it includes the central and eastern part and the Asian part of Russia.

Domestic pigs and wild boars have undergone frequent interspecies crossbreeding; therefore, the presence of hybrids makes it challenging to find genetic markers that distinguish both subspecies. The aim of this research is to identify the DNA regions that underwent strong selection during the domestication of the pig and to give an insight into the genetic diversity of the Polish wild boar and domestic pigs by implementing the genotyping-by-sequencing (GBS) technique. We studied two groups of animals: one consisted of domestic pigs (Landrace, Large White, Duroc, Puławska and Pietrain), while the second group included wild boars from Poland. The filtered single nucleotide polymorphisms (SNP) panel used in this study included 7,298 markers that were spread across 18 porcine autosomes and unmapped contigs. The maximum-likelihood phylogenetic trees and multidimensional scaling (MDS) clearly separated the populations of pigs from the wild boars. We also detected genome regions that demonstrated the most significant genetic differences between the domestic pigs and wild boars. These regions were distributed on eight different autosomes and overlapped with 48 different pig RefSeq genes. The KEGG pathway, Reactome and GO terms were further used to assign a functional significance to the identified genes that were associated with inter alia muscle development (MYOG, MEOX2), pre-weaning mortality stress (MYO7A) and sensory perception (TAS1R3).