Acanthocephalans as pollutant sinks? Higher pollutant accumulation in parasites may relieve their crustacean host.

Increasing chemical pollution calls for a closer look at ecologically highly relevant host-parasite interactions to understand the persistence of organisms and populations in a polluted environment. The impact of chemical exposure within the host-parasite interactions - particularly the distinctive bioaccumulation behavior of organic micropollutants - can substantially influence the persistence of a species. This significance has been emphasized by previous research showing a higher tolerance of Gammarus roeselii (Amphipoda, Crustacea) infected with acanthocephalans during acute exposure to a pyrethroid.

Phage susceptibility testing methods or 'phagograms': where do we stand and where should we go?

Phage therapy is a highly promising approach to address the challenge that is presented by the global burden of antimicrobial resistance. Given the natural specificity of phages, phage susceptibility testing (PST) is a prerequisite for successful personalized therapy, allowing the selection of active phages from large and diverse collections. However, the issue of an easy-to-use and standardized technique remains.

Cryptic species complex shows population-dependent, rather than lineage-dependent tolerance to a neonicotinoid.

Cryptic species are rarely considered in ecotoxicology, resulting in misleading outcomes when using a single morphospecies that encompasses multiple cryptic species. This oversight contributes to the lack of reproducibility in ecotoxicological experiments and promotes unreliable extrapolations. The important question of ecological differentiation and the sensitivity of cryptic species is rarely tackled, leaving a substantial knowledge gap regarding the vulnerability of individual cryptic species within species complexes.

Syphilis Should not be Overlooked in any Individual, Irrespective of their Condition.

Introduction: Syphilis remains a significant challenge in public health, largely because of its diverse clinical manifestations, often resulting in underdiagnosis especially among patients with neurogenic disability.

Case Description: We present a case of neurosyphilis in a 63-year-old patient with a spinal cord injury. Despite syphilis being a well-established sexually transmitted infection, the exacerbation of neurological and dermatological symptoms during physical examination prompted an investigation into alternative causes beyond the patient's pre-existing paraparesis, ultimately resulting in the diagnosis of neurosyphilis.

One like all? Behavioral response range of native and invasive amphipods to neonicotinoid exposure.

Native and invasive species often occupy similar ecological niches and environments where they face comparable risks from chemical exposure. Sometimes, invasive species are phylogenetically related to native species, e.g.

[Ileo-colic intussusception in adult secondary to a large neoplasia of the lower caecal fundus].

Intussusception is rare in adults, accounting for 1 to 5 % of mechanical bowel obstructions. It is due to pathologic lead point within the bowel which is malignant in up to 77 % of cases. Benign lesions may also be responsible for intussusception (polyp, Meckel diverticulum).

Ecologically and medically important black flies of the genus Simulium: Identification of biogeographical groups according to similar larval niches.

The black fly genus Simulium includes medically and ecologically important species, characterized by a wide variation of ecological niches largely determining their distributional patterns. In a rapidly changing environment, species-specific niche characteristics determine whether a species benefits or not. With aquatic egg, larval and pupal stages followed by a terrestrial adult phase, their spatial arrangements depend upon the interplay of aquatic conditions and climatic-landscape parameters in the terrestrial realm.

Rapid development of increased neonicotinoid tolerance in non-target freshwater amphipods.

The comprehensive assessment of the long-term impacts of constant exposure to pollutants on wildlife populations remains a relatively unexplored area of ecological risk assessment. Empirical evidence to suggest that multigenerational exposure affects the susceptibility of organisms is scarce, and the underlying mechanisms in the natural environment have yet to be fully understood. In this study, we first examined the arthropod candidate species, Gammarus roeselii that - unlike closely related species - commonly occurs in many contaminated river systems of Central Europe.

A Biomimetic Multiparametric Assay to Characterise Anti-Amyloid Drugs.

Alzheimer's disease (AD) is the most widespread form of senile dementia worldwide and represents a leading socioeconomic problem in healthcare. Although it is widely debated, the aggregation of the amyloid β peptide (Aβ) is linked to the onset and progression of this neurodegenerative disease. Molecules capable of interfering with specific steps in the fibrillation process remain of pharmacological interest.

Kinetic study of rare earth elements extraction from decrepitated magnet powder using liquid magnesium.

This study presents a comprehensive investigation of neodymium extraction from decrepitated magnet powder using liquid magnesium. Neodymium extraction from the decrepitated magnet into the liquid magnesium was assessed between 700 and 900 °C by measuring the average length of the diffusion zone in sintered samples of 3 mm-thickness. Experiments were conducted in a reactor which a design allows a homogeneous distribution of magnesium with efficient agitation.

Uncovering the Grinnellian niche space of the cryptic species complex .

Background: The discovery of cryptic species complexes within morphologically established species comes with challenges in the classification and handling of these species. We hardly know to what extent species within a species complex differ ecologically. Such knowledge is essential to assess the vulnerability of individual genetic lineages in the face of global change.

A novel approach for the assessment of invertebrate behavior and its use in behavioral ecotoxicology.

Sublethal effects are becoming more relevant in ecotoxicological test methods due to their higher sensitivity compared to lethal endpoints and their preventive nature. Such a promising sublethal endpoint is the movement behavior of invertebrates which is associated with the direct maintenance of various ecosystem processes, hence being of special interest for ecotoxicology. Disturbed movement behavior is often related to neurotoxicity and can affect drift, mate-finding, predator avoidance, and therefore population dynamics.

Acute colonic pseudo-obstruction syndrome in patients with severe COVID-19 in Buenos Aires, Argentina.

Background: Several gastrointestinal complications have been reported in patients with COVID-19, including motility disorders, such as acute colonic pseudo-obstruction (ACPO). This affection is characterized by colonic distention in the absence of mechanical obstruction. ACPO in the context of severe COVID-19 may be related to neurotropism and direct damage of SARS-CoV-2 in enterocytes.

Cryptic Species in Ecotoxicology.

The advent of genetic methods has led to the discovery of an increasing number of species that previously could not be distinguished from each other on the basis of morphological characteristics. Even though there has been an exponential growth of publications on cryptic species, such species are rarely considered in ecotoxicology. Thus, the particular question of ecological differentiation and the sensitivity of closely related cryptic species is rarely addressed.

FRENCH versus ESI: comparison between two nurse triage emergency scales with referent scenarios.

Objectives: Acute triage is needed to prioritize care and achieve optimal resource allocation in busy emergency departments. The main objective is to compare the FRench Emergency Nurse Classification in Hospital scale (FRENCH) to the American scale Emergency Severity Index (ESI). Secondary objectives are to compare for each scale the over and under-triage, the triage matching to the gold standard and the inter-individual sorting reproducibility between the nurses.

Global Size Pattern in a Group of Important Ecological Indicators (Diptera, Chironomidae) Is Driven by Latitudinal Temperature Gradients.

Size is one of the most outwardly obvious characteristics of animals, determined by multiple phylogenetic and environmental variables. Numerous hypotheses have been suggested to explain the relationship between the body size of animals and their geographic latitude. Bergmann's Rule, describing a positive relationship between the body size of endothermic animals and their geographic latitude, is especially well known.

Connexin 43 confers chemoresistance through activating PI3K.

Circumventing chemoresistance is crucial for effectively treating cancer including glioblastoma, a lethal brain cancer. The gap junction protein connexin 43 (Cx43) renders glioblastoma resistant to chemotherapy; however, targeting Cx43 is difficult because mechanisms underlying Cx43-mediated chemoresistance remain elusive. Here we report that Cx43, but not other connexins, is highly expressed in a subpopulation of glioblastoma and Cx43 mRNA levels strongly correlate with poor prognosis and chemoresistance in this population, making Cx43 the prime therapeutic target among all connexins.

Off to new shores: Climate niche expansion in invasive mosquitofish ( spp.).

Aim: Formerly introduced for their presumed value in controlling mosquito-borne diseases, the two mosquitofish and . (Poeciliidae) are now among the world's most widespread invasive alien species, negatively impacting aquatic ecosystems around the world. These inconspicuous freshwater fish are, once their presence is noticed, difficult to eradicate.

The Occurrence of Intersex in Different Populations of the Marine Amphipod in North-West Brittany - A Longterm-Study.

In the past two decades, an increasing body of studies has been published on the intersex phenomenon in separate-sexed crustaceans from marine and freshwater ecosystems. Various causes are being considered that could have an influence on the occurrence of intersex. Besides genetic factors, environmental conditions such as photoperiodicity, temperature, salinity and parasitism, but also environmental pollution with endocrine disrupting chemicals (EDCs) are discussed.

Invasive fish retain plasticity of naturally selected, but diverge in sexually selected traits.

Invasive alien species (IAS) have become a major threat to ecosystems worldwide. From an evolutionary ecological perspective, they allow teasing apart the relative contributions of plasticity and evolutionary divergence in driving rapid phenotypic diversification. When IAS spread across extensive geographic ranges, climatic variation may represent a source of strong natural selection through overwinter mortality and summer heat stress.