Kinetic Resolution of Epimeric Proteins Enables Stereoselective Chemical Mutagenesis.

Chemical mutagenesis via dehydroalanine (Dha) is a powerful method to tailor protein structure and function, allowing the site-specific installation of post-translational modifications and non-natural functional groups. Despite the impressive versatility of this method, applications have been limited, as products are formed as epimeric mixtures, whereby the modified amino acid is present as both the desired l-configuration and a roughly equal amount of the undesired d-isomer. Here, we describe a simple remedy for this issue: removal of the d-isomer via proteolysis using a d-stereoselective peptidase, alkaline d-peptidase (AD-P).

Nanopore sequencing for identification and characterization of antimicrobial-resistant and spp. from tilapia and shrimp sold at wet markets in Dhaka, Bangladesh.

Wet markets in low-and middle-income countries are often reported to have inadequate sanitation resulting in fecal contamination of sold produce. Consumption of contaminated wet market-sourced foods has been linked to individual illness and disease outbreaks. This pilot study, conducted in two major wet markets in Dhaka city, Bangladesh during a 4-month period in 2021 aimed to assess the occurrence and characteristics of and non-typhoidal spp.

Scaling up quality-assured psychotherapy: The role of therapist competence on perinatal depression and anxiety outcomes.

Objectives: To examine: (1) the psychometric properties of two therapist competence measures-multiple choice questionnaire (MCQ) and standardized role-plays; (2) whether therapist competence differed between non-specialist (NSPs) and specialist (SPs) providers; and (3) the relations between therapist competence and patient outcomes among perinatal patients receiving brief psychotherapy.

Methods: This study is embedded within the SUMMIT Trial-a large, ongoing psychotherapy trial for perinatal women with depressive and anxiety symptoms. We assessed the: (1) psychometric properties of therapist competence measures using Cronbach's alpha and inter-class correlation; (2) differences in therapist competence scores between n = 23 NSPs and n = 22 SPs using a two-sample t-test; and (3) relations between therapist competence measures and perinatal patient outcomes through a linear regression model.

Culturally sensitive psychotherapy for perinatal women: A mixed methods study.

Objective: There is a critical need to better understand psychological treatments from a culturally sensitive lens. Using a process-oriented model, we examined treatment satisfaction among perinatal patients who received behavioral activation (BA) within a large psychotherapy trial for perinatal depression and anxiety, and explored how to optimize culturally sensitive delivery through a multistakeholder perspective.

Method: In this mixed methods study, we estimated treatment satisfaction through mean client satisfaction scores (Client Satisfaction Questionnaire [CSQ]-8) among perinatal participants ( = 417) using one-way analysis of variance.

Adapting behavioral activation for perinatal depression and anxiety in response to the COVID-19 pandemic and racial injustice.

Background: We examined the implementation of a brief, behavioural activation (BA) model, via telemedicine, for perinatal populations during a confluence of significant global events in 2020. We conducted a rigorous qualitative study to identify relevant barriers and facilitators from the perspectives of both perinatal participants and treatment providers. We also present two case studies where BA was used and adapted to provide patient-centered care.

Barriers and Facilitators to Resuming In-Person Psychotherapy with Perinatal Patients amid the COVID-19 Pandemic: A Multistakeholder Perspective.

During the COVID-19 pandemic, outpatient psychotherapy transitioned to telemedicine. This study aimed to examine barriers and facilitators to resuming in-person psychotherapy with perinatal patients as the pandemic abates. We conducted focus group and individual interviews with a sample of perinatal participants ( = 23), psychotherapy providers ( = 28), and stakeholders ( = 18) from Canada and the U.

Detection of Antimicrobial and Heavy-Metal Resistance Genes in spp. Isolated from Hard-Shelled Mussel ().

Hard-shelled mussel () is a popular seafood in South Korea because of its delicacy and high nutritional value. Our study aimed to identify antimicrobial and heavy-metal resistance determinants in isolates from marketed hard-shelled mussel in South Korea. A total of 33 species were isolated, and antimicrobial disk diffusion test was done to observe antimicrobial resistance patterns.

Pet-turtles: a potential source of human pathogenic bacteria.

Human infections caused by the bacterial pathogens transmitted from pet-turtles are becoming very common and getting more importance as the turtles are considered unsafe pet animals, mainly for children and immunocompromised people. Pet-turtles are known as the reservoir of different bacterial species as their intestinal microflora. Extrinsic stressors, such as crowding, unhygienic handling, poor water quality, polluted feeding and inadequate nutrition, can predispose pet-turtles to bacterial infections.

The interactive process of negotiating workplace accommodations for employees with mental health conditions.

Background: Implementing workplace accommodations is an effective means of retaining employees with mental health conditions. However, the process is poorly understood and poorly documented.

Objective: The purpose of this research is to explore the interactive process of negotiating workplace accommodations from the perspective of employees with mental health conditions and workplace stakeholders.

Aeromonas spp. Isolated from Pacific Abalone (Haliotis discus hannai) Marketed in Korea: Antimicrobial and Heavy-Metal Resistance Properties.

Antimicrobial and heavy-metal resistance of 29 Aeromonas spp. (Aeromonas hydrophila n = 9, Aeromonas enteropelogenes n = 14, Aeromonas veronii n = 3, Aeromonas salmonicida n = 2, and Aeromonas sobria n = 1) isolated from Pacific abalone marketed in Korea were analyzed. All isolates were found to be resistant against ampicillin.

Phylogenetic characteristics, virulence properties and antibiogram profile of motile Aeromonas spp. isolated from ornamental guppy (Poecilia reticulata).

Aeromonas spp. are opportunistic pathogenic bacteria related to an assembly of infectious diseases in ornamental fish. In the present study, virulence properties and antibiotic susceptibility of 52 guppy-borne Aeromonas spp.

Antimicrobial resistance of pathogenic Aeromonas spp. isolated from marketed Pacific abalone (Haliotis discus hannai) in Korea.

Aims: The object of this study was to identify potential health concerns of the Aeromons spp. isolated from marketed Pacific abalone (Haliotis discus hannai) with respect to their virulence and antimicrobial resistance patterns.

Methods And Results: We identified 29 strains of aeromonads consisting of five species; Aeromonas hydrophila (n = 9), Aeromonas enteropelogenes (n = 14), Aeromonas veronii (n = 3), Aeromonas salmonicida (n = 2) and Aeromonas sobria (n = 1), by employing series of biochemical tests and gene sequencing.

Occurrence of Virulence and Extended-Spectrum β-Lactamase Determinants in spp. Isolated from Marketed Hard-Shelled Mussel ().

This study investigated the occurrence of virulence and antimicrobial resistance properties in spp. isolated from hard-shelled mussel () marketed in Korea. A total of 32 spp.

Frozen White-Leg Shrimp () in Korean Markets as a Source of spp. Harboring Antibiotic and Heavy Metal Resistance Genes.

As the most consumed shrimp variety, white-leg shrimp () owns a high market demand in Korea. This study sought to screen the frozen white-leg shrimp for spp. harboring antimicrobial and heavy metal resistance characteristics.

Distribution of Antimicrobial Resistance Genes and Class 1 Integron Gene Cassette Arrays in Motile Aeromonas spp. Isolated from Goldfish (Carassius auratus).

Aeromonas spp. are opportunistic pathogens related to multiple infectious diseases in ornamental fishes. In the present study, the antimicrobial susceptibility, resistance genes, and integrons of 65 goldfish-borne Aeromonas spp.

Antibacterial activity of essential oil from lavender () against pet turtle-borne pathogenic bacteria.

Pet turtles are well-known to harbor an array of bacterial pathogens which can cause zoonotic infections in humans as well as opportunistic infections in the turtles itself. Essential oils are the natural plant extracts which have been traditionally used for disease treatment. In the present study, the essential oil of lavender (EOL) was examined for its antibacterial activity against thirty-eight strains of turtle-borne pathogenic bacteria belonging to seven species; , , , , , and .

Antimicrobial property of lemongrass () oil against pathogenic bacteria isolated from pet turtles.

The usage of essential oils as antimicrobial agents is gaining attention. Besides, pet turtles were known to harbor a range of pathogenic bacteria while the turtle keeping is a growing trend worldwide.The current study examined the antimicrobial activity of lemon grass oil (LGO) against seven species of Gram negative bacteria namely; , , , , , , and isolated from three popular species of pet turtles.

Quinolone susceptibility and genetic characterization of subsp. isolated from pet turtles.

Turtle-borne owns significance as a leading cause in human salmonellosis. The current study aimed to determine the quinolone susceptibility and the genetic characteristics of 21 strains of subsp. isolated from pet turtles.

Prevalence and characterisation of quinolone resistance genes in Aeromonas spp. isolated from pet turtles in South Korea.

Objectives: The aim of this study was to characterise Aeromonas spp. isolated from popular species of pet turtle to assess the potential risk of pet turtles as a source of target gene alterations in the quinolone resistance-determining region (QRDR) and transferable plasmid-mediated quinolone resistance (PMQR) genes.

Methods: Twenty-five isolates comprising four species, namely Aeromonas enteropelogenes, Aeromonas hydrophila, Aeromonas caviae and Aeromonas veronii, were obtained from healthy pet turtles.

Potential enterotoxicity and antimicrobial resistance pattern of Aeromonas species isolated from pet turtles and their environment.

To investigate the potential enterotoxicity and antimicrobial resistance of aeromonads from pet turtles as a risk for human infection, one hundred and two Aeromonas spp. were isolated from the feces, skin and rearing environments of pet turtles and identified by biochemical and gyrB sequence analyses. Aeromonas enteropelogenes was the predominant species among the isolates (52.

Measurement of free glucocorticoids: quantifying corticosteroid-binding globulin binding affinity and its variation within and among mammalian species.

Plasma glucocorticoids (GCs) are commonly used as measures of stress in wildlife. A great deal of evidence indicates that only free GC (GC not bound by the specific binding protein, corticosteroid-binding globulin, CBG) leaves the circulation and exerts biological effects on GC-sensitive tissues. Free hormone concentrations are difficult to measure directly, so researchers estimate free GC using two measures: the binding affinity and the binding capacity in plasma.