Genomic Evidence for Cryptic Speciation in Tree Frogs From the Apennine Peninsula, With Description of Hyla perrini sp. nov

Despite increasing appreciation of the speciation continuum, delimiting and describing new species is a major yet necessary challenge of modern phylogeography to help optimize conservation efforts. In amphibians, the lack of phenotypic differences between closely-related taxa, their complex, sometimes unresolved phylogenetic relationships, and their potential to hybridize all act to blur taxonomic boundaries. Here we implement a multi-disciplinary approach to evaluate the nature of two deeply-diverged mitochondrial lineages previously documented in Italian tree frogs (Hyla intermedia s. l.), distributed north and south of the Northern Apennine Mountains. Based on evidence from mitochondrial phylogenetics, nuclear phylogenomics, hybrid zone population genomics, niche modeling analyses, and biometric assessments, we propose that these lineages be considered distinct, cryptic species. Both mitochondrial and nuclear data affirm that they belong to two monophyletic clades of Pliocene divergence (~3.5 My), only admixing over a relatively narrow contact zone restricted to the southeast of the Po Plain (50–100 km). These characteristics are comparable to similarly-studied parapatric amphibians bearing a specific status. Inferred from their current geographic distribution, the two Italian tree frogs feature distinct ecological niches (<15% of niche overlap), raising questions regarding potential adaptive components contributing to their incipient speciation. However, we found no diagnostic morphological and bioacoustic differences between them. This system illustrates the speciation continuum of Western-Palearctic tree frogs and identifies additional cryptic lineages of similar divergence to be treated as separate species (H. cf. meridionalis). We recommend combined approaches using genomic data as applied here for the future taxonomic assessment of cryptic diversity in alloparapatric radiations of terrestrial vertebrates, especially in controversial taxa. Finally, we formally described the northern Italian tree frogs as a new species, Hyla perrini sp. nov

Les anticoagulants inhibiteurs directs du facteur Xa administrés par voie orale (état des lieux en 2011)

LYON1-BU Santé (693882101) / SudocSudocFranceF

Early life maltreatment and resting-state heart rate variability: A systematic review and meta-analysis

Recent focus on the consequences of early life adversity (ELA) in neurobiological research led to a variety of findings suggesting alterations in several physiological systems, such as the cardiovascular system. In this systematic review and meta-analysis, we focused on the relationship between early life maltreatment (ELM), one form of ELA, and resting vagal activity indexed by resting-state heart rate variability (HRV). A systematic search of the literature yielded 1'264 hits, of which 32 studies reporting data for group comparisons or correlations were included. By quantitative synthesis of existing studies using random-effect models, we found no evidence for a relationship between ELM exposure and resting vagal activity in principal. Conducting meta-regression analyses, however, we found the relationship between ELM and resting vagal activity to significantly vary as a function of both age and the presence of psychopathology. In light of the current multitude of vastly unclear pathways linking ELM to the onset of disease, we emphasize the need for further research and outline several aspects to consider in future studies

Associations between different measures of personality pathology and resting-state autonomic function among adolescents.

Borderline personality disorder (BPD) has been associated with a reduced functional flexibility of the autonomic nervous system (ANS), indexed by decreased vagally mediated heart rate variability (vmHRV). Employing a comprehensive Section II-based assessment approach and a partial Section III-based assessment approach (including Criterion A of the alternative model of personality disorders [AMPD]), the present study investigates how different conceptualizations of personality disorders (PDs) according to the Diagnostic and Statistical Manual for Mental Disorders, 5th edition relate to ANS function. Using the BPD section of the Structured Clinical Interview for DSM-IV Axis II Disorders (SCID-II, a Section II-based assessment approach) and the Semistructured Interview for Personality Functioning DSM-5 (STiP-5.1, a Section III-based assessment approach), we conducted linear regression analyses to examine how categorical (BPD diagnosis) and dimensional (severity and domain) measures of PD are associated with ANS activity among adolescent psychiatric patients (N = 147, Mage = 15.25 years). Replicating earlier findings, analyses revealed a statistically significant positive association between the SCID-II measures of BPD and heart rate (HR), b = 0.43, t(59) = 3.57, p = .001, f = .57, as well as a statistically significant negative association between the SCID-II measures of BPD and vmHRV, b = -0.34, t(59) = -2.74, p = .008, f = .47. Neither the STiP-5.1 total score nor the subscales of the Level of Personality Functioning Scale (LPFS) were associated with HR or vmHRV. The present findings indicate that the SCID-II may capture features of PD that are more informative of variance in physiological function than the STiP-5.1. (PsycInfo Database Record (c) 2023 APA, all rights reserved)