Differential stress responsiveness determines intraspecies virulence heterogeneity and host adaptation in Listeria monocytogenes.

Microbial pathogenesis is mediated by the expression of virulence genes. However, as microbes with identical virulence gene content can differ in their pathogenic potential, other virulence determinants must be involved. Here, by combining comparative genomics and transcriptomics of a large collection of isolates of the model pathogen Listeria monocytogenes, time-lapse microscopy, in vitro evolution and in vivo experiments, we show that the individual stress responsiveness of L.

X-Band Single Chip Integrated Pulsed Electron Spin Resonance Microsystem.

We report on the design and characterization of a single chip integrated pulsed electron spin resonance detector operating at 9.1 GHz. The microsystem consists of an excitation microcoil, a detection microcoil, a low noise microwave preamplifier, a mixer, and an intermediate frequency (IF) amplifier.

Psychometric properties of the French Infant-Toddler Working Alliance Inventory Short version (IT-WAI-S).

Objective: Therapeutic alliance has been little investigated in infant and toddler therapy, with no tools specifically adapted to this population. However, we have developed the Infant-Toddler Working Alliance Inventory-Short form (IT-WAI-S) which is based on the Working Alliance Inventory. The aim of this study was to assess the psychometric properties of this original French tool, in its two versions: for parent (IT-WAI-SP) and for therapist (IT-WAI-STh).

Analysis of Temporal Artery Biopsy by Provider Across a Large Multi-State Health Care Network.

Temporal artery biopsy (TAB) is the standard test for diagnosing giant cell arteritis. Our objective was to determine which specialists perform TABs and if there is variation across the United States. We performed a cross-sectional analysis in a multi-state health care system, evaluating differences between observed counts of surgical specialty by region, positive diagnoses by region, and positive diagnoses by specialty.

A Case Presentation of Three Polypoid Melanomas With Divergent Features.

Polypoid melanoma, a subtype of nodular melanoma, is classified as the most aggressive and deadly form of cutaneous melanoma. Its rapid vertical growth phase and a wide array of divergent features make clinical diagnosis extremely difficult. This report includes three cases of polypoid melanoma that were all originally thought to be other benign lesions or non-melanoma cancer.

Comparison between computerised lung SPECT-CT and noncontrast thoracic HRCT for quantitative analysis of post-acute COVID-19 pulmonary vascular pruning.

https://bit.ly/3qAQZDW.

Early Effects of the New York City Paid Safe and Sick Leave Law.

Context: Paid sick leave (PSL) is a public health strategy associated with benefits for workers, businesses, and consumers. In the absence of a federal law, in 2014, New York City (NYC) joined other state and municipal governments with local PSL policies.

Objectives: To examine changes in PSL after the implementation of NYC's 2014 Paid Safe and Sick Leave Law and to assess which communities remain less likely to use PSL.

The relationship between neighborhood typologies and self-rated health in Maryland: A latent class analysis.

Despite widespread evidence that neighborhood conditions impact health, few studies apply theory to clarify the physical and social factors in communities that drive health outcomes. Latent class analysis (LCA) addresses such gaps by identifying distinct neighborhood typologies and the joint influence that neighborhood-level factors play in health promotion. In the current study, we conducted a theory-driven investigation to describe Maryland neighborhood typologies and examined differences in area-level self-rated poor mental and physical health across typologies.

Adaptation of the working alliance inventory to therapeutic interventions for early-age regulatory and behavioral symptoms: French versions of the infant-toddler WAI for parents and therapists.

Objectives: The therapeutic alliance, an essential component of the therapeutic process, has been investigated in adult and child therapy, but studies in the context of parent-infant or parent-toddler therapeutic interventions are scarce. This monocentric study aims to produce a French cross-cultural adaptation of a therapeutic alliance scale for the context of early consultations in a child and psychiatry department.

Method: Fifty-five young children aged 3 to 30 months consulting for regulation or behavioral disorders and their mothers were included in the study.

New Preservative-Free Formulation for the Enhanced Ocular Bioavailability of Prostaglandin Analogues in Glaucoma.

Glaucoma is a wide-spread eye disease caused by elevated intraocular pressure. Uncontrolled, this pressure may lead to damages to the optic nerve. Prostaglandin analogues, such as latanoprost and travoprost (which are water-insoluble active substances), are the most used class of active pharmaceutical ingredient.

Predictive factors for the outcome of emotional and/or behavioural disorders in 18- to 48-month-old children after parent-child psychotherapy: Protocol of a European prospective cohort study.

Objectives: Several studies have shown that in young children, behavioural and/or emotional disorders are more difficult to manage than regulatory disorders. Moreover, data are lacking on outcome predictive factors. This article presents a short synthesis of previous research about outcome predictive factors in child psychiatry.

Neonatal Listeriosis Presentation and Outcome: A Prospective Study of 189 Cases.

Background: Listeriosis is caused by the foodborne pathogen Listeria monocytogenes. It can present as a maternal-neonatal infection. We implemented a nationwide prospective cohort and analyzed the features of neonatal listeriosis.

In Situ Gelling Ophthalmic Drug Delivery System for the Optimization of Diagnostic and Preoperative Mydriasis: In Vitro Drug Release, Cytotoxicity and Mydriasis Pharmacodynamics.

Mydriasis is required prior to many eye examinations and ophthalmic surgeries. Nowadays, phenylephrine hydrochloride (PHE) and tropicamide (TPC) are extensively used to induce mydriasis. Several pharmaceutic dosage forms of these two active ingredients have been described.

Outbreak of Listeriosis in South Africa Associated with Processed Meat.

Background: An outbreak of listeriosis was identified in South Africa in 2017. The source was unknown.

Methods: We conducted epidemiologic, trace-back, and environmental investigations and used whole-genome sequencing to type isolates.

Residual Variation Intolerance Score Detects Loci Under Selection in Neuroinvasive .

is a Gram-positive bacterium that can be found in a broad range of environments, including soil, food, animals, and humans. can cause a foodborne disease manifesting as sepsis and meningo-encephalitis. To evaluate signals of selection within the core genome of neuroinvasive strains, we sequenced 122 strains from cerebrospinal fluid (CSF) of Dutch meningitis patients and performed a genome-wide analysis using Tajima's D and ω (dN/dS).

Novel in situ gelling ophthalmic drug delivery system based on gellan gum and hydroxyethylcellulose: Innovative rheological characterization, in vitro and in vivo evidence of a sustained precorneal retention time.

Achieving drug delivery at the ocular level encounters many challenges and obstacles. In situ gelling delivery systems are now widely used for topical ocular administration and recognized as a promising strategy to improve the treatment of a wide range of ocular diseases. The present work describes the formulation and evaluation of a mucoadhesive and ion-activated in situ gelling delivery system based on gellan gum and hydroxyethylcellulose for the delivery of phenylephrine and tropicamide.

Author Correction: Hypervirulent Listeria monocytogenes clones' adaptation to mammalian gut accounts for their association with dairy products.

An amendment to this paper has been published and can be accessed via a link at the top of the paper.

Listeria monocytogenes-associated endovascular infections: A study of 71 consecutive cases.

Background: Listeria monocytogenes-associated endovascular infections are not well characterized.

Methods: Retrospective study of 71 culture-proven cases reported to the French National Reference Center for Listeria from 1993 to 2018.

Results: Seventy-one cases were identified: 42 with vascular aneurysms/prosthetic infections, 27 with endocarditis, 2 with both.

Hypervirulent Listeria monocytogenes clones' adaption to mammalian gut accounts for their association with dairy products.

Listeria monocytogenes (Lm) is a major human and animal foodborne pathogen. Here we show that hypervirulent Lm clones, particularly CC1, are strongly associated with dairy products, whereas hypovirulent clones, CC9 and CC121, are associated with meat products. Clone adaptation to distinct ecological niches and/or different food products contamination routes may account for this uneven distribution.

Listeria monocytogenes-associated respiratory infections: a study of 38 consecutive cases.

Objectives: Listeria monocytogenes (Lm) is a foodborne human pathogen responsible for severe infections, including septicaemia, neurolisteriosis, and maternal-foetal and focal infections. Little is known about Lm-associated respiratory tract or lung infections.

Methods: We conducted a retrospective study of culture-proven cases of Lm pleural infections and pneumonia reported to the French National Reference Centre for Listeria from January 1993 to August 2016.

Workers not Paid for Sick Leave after Implementation of the New York City Paid Sick Leave Law.

This study examined factors associated with being paid for sick leave after implementation of the New York City (NYC) paid sick leave law. A random sample of NYC residents was surveyed by telephone multiple times over a 2-year period. Participants (n = 1195) reported socio-demographics, awareness of the law, income, work hours per week, and payment for sick time off work.

Cross-border outbreak of listeriosis caused by cold-smoked salmon, revealed by integrated surveillance and whole genome sequencing (WGS), Denmark and France, 2015 to 2017.

In August 2017, an outbreak of six listeriosis cases in Denmark was traced to cold-smoked salmon, using epidemiological investigations and whole-genome sequencing (WGS) analyses. Exchange of genome sequences allowed identification in France of a food isolate from a salmon-derived product and a human isolate from 2016 within the same cgMLST cluster as the Danish isolates (L2-SL8-ST8-CT771). The salmon product came from a third European Union country.

MALDI-TOF mass spectrometry-based identification of Listeria species in surveillance: A prospective study.

This study aimed to evaluate MALDI-TOF MS for species discrimination of Listeria in the context of routine surveillance. MALDI-TOF MS yielded 100% accuracy for the identification of L. monocytogenes, L.

Cyanine derivative as a suitable marker for thermosensitive in situ gelling delivery systems: In vitro and in vivo validation of a sustained buccal drug delivery.

Buccal administration route is a promising way for a large number of drugs exhibiting a low oral bioavailability. The present work describes the formulation and evaluation of a mucoadhesive and thermosensitive in situ gelling delivery system based on poloxamer 407, poloxamer 188 and xanthan gum for buccal drug delivery. First, the mucoadhesion properties were evaluated using a tensile test.