A novel multiplex fluorescent-labeling method for the visualization of mixed-species biofilms .

In nature, bacteria usually exist as mixed-species biofilms, where they engage in a range of synergistic and antagonistic interactions that increase their resistance to environmental challenges. Biofilms are a major cause of persistent infections, and dispersal from initial foci can cause new infections at distal sites thus warranting further investigation. Studies of development and spatial interactions in mixed-species biofilms can be challenging due to difficulties in identifying the different bacterial species .

Efficacy and Imaging-Enabled Pharmacodynamic Profiling of KRAS G12C Inhibitors in Xenograft and Genetically Engineered Mouse Models of Cancer.

KRAS is one of the most commonly mutated oncogenes in lung, colorectal, and pancreatic cancers. Recent clinical trials directly targeting KRAS G12C presented encouraging results for a large population of non-small cell lung cancer (NSCLC), but resistance to treatment is a concern. Continued exploration of new inhibitors and preclinical models is needed to address resistance mechanisms and improve duration of patient responses.

Thickness-Dependent Interface Polarity in Infinite-Layer Nickelate Superlattices.

The interface polarity plays a vital role in the physical properties of oxide heterointerfaces because it can cause specific modifications of the electronic and atomic structure. Reconstruction due to the strong polarity of the NdNiO/SrTiO interface in recently discovered superconducting nickelate films may play an important role, as no superconductivity has been observed in the bulk. By employing four-dimensional scanning transmission electron microscopy and electron energy-loss spectroscopy, we studied effects of oxygen distribution, polyhedral distortion, elemental intermixing, and dimensionality in NdNiO/SrTiO superlattices grown on SrTiO (001) substrates.

Sustained Virologic Suppression With Dolutegravir/Lamivudine in a Test-and-Treat Setting Through 48 Weeks.

Background: We assessed the efficacy and safety of dolutegravir/lamivudine (DTG/3TC) in a US test-and-treat setting at a secondary 48-week time point of the multicenter, single-arm, phase IIIb STAT study.

Methods: Participants were eligible adults newly diagnosed with human immunodeficiency virus (HIV)-1 and had started once-daily DTG/3TC within 14 days of diagnosis, before laboratory results were available. Antiretroviral therapy (ART) was modified if baseline testing indicated DTG or 3TC resistance, hepatitis B virus (HBV) coinfection, or creatinine clearance <30 mL/min per 1.

Population Genetics and Anastomosis Group's Geographical Distribution of Associated with Soybean.

is a species complex composed of many genetically diverse anastomosis groups (AG) and their subgroups. It causes economically important diseases of soybean worldwide. However, the global genetic diversity and distribution of AG associated with soybean are unknown to date.

Effects of stabilized hypochlorous acid on oral biofilm bacteria.

Background: Caries and periodontitis are amongst the most prevalent diseases worldwide, leading to pain and loss of oral function for those affected. Prevention relies heavily on mechanical removal of dental plaque biofilms but for populations where this is not achievable, alternative plaque control methods are required. With concerns over undesirable side-effects and potential bacterial resistance due to the use of chlorhexidine gluconate (CHX), new antimicrobial substances for oral use are greatly needed.

Three-year durable efficacy of dolutegravir plus lamivudine in antiretroviral therapy - naive adults with HIV-1 infection.

Objective: To assess efficacy and safety of dolutegravir (DTG) + lamivudine (3TC) vs. DTG + tenofovir disoproxil fumarate/emtricitabine (TDF/FTC) in treatment-naive adults with HIV-1 in the prespecified 144-week secondary analyses of GEMINI-1 and GEMINI-2.

Design: Identical, multicenter, phase III, randomized, non-inferiority studies (double-blind through 96 weeks).

Dolutegravir/lamivudine as a first-line regimen in a test-and-treat setting for newly diagnosed people living with HIV.

Objectives: Dolutegravir/lamivudine (DTG/3TC) is indicated for treatment-naive and experienced people with HIV; however, questions remain about its utility in a test-and-treat setting because of potential transmitted resistance and baseline hepatitis B virus (HBV) co-infection. We present feasibility and efficacy of DTG/3TC in newly diagnosed individuals in a test-and-treat setting.

Design: The single-arm STAT study evaluated DTG/3TC in a US test-and-treat setting.

Durable Efficacy of Dolutegravir Plus Lamivudine in Antiretroviral Treatment-Naive Adults With HIV-1 Infection: 96-Week Results From the GEMINI-1 and GEMINI-2 Randomized Clinical Trials.

Background: The 2-drug regimen dolutegravir + lamivudine was noninferior to dolutegravir + tenofovir disoproxil fumarate/emtricitabine in achieving HIV-1 RNA <50 copies/mL in treatment-naive adults in the 48-week primary analysis of the GEMINI trials. We present results from the prespecified 96-week secondary analyses.

Setting: One hundred eighty-seven centers in 21 countries.

The clinical KRAS(G12C) inhibitor AMG 510 drives anti-tumour immunity.

KRAS is the most frequently mutated oncogene in cancer and encodes a key signalling protein in tumours. The KRAS(G12C) mutant has a cysteine residue that has been exploited to design covalent inhibitors that have promising preclinical activity. Here we optimized a series of inhibitors, using novel binding interactions to markedly enhance their potency and selectivity.

A novel starch-binding laccase from the wheat pathogen Zymoseptoria tritici highlights the functional diversity of ascomycete laccases.

Background: Laccases are multicopper oxidases, which are assigned into auxiliary activity family 1 (AA1) in the CAZy database. These enzymes, catalyzing the oxidation of phenolic and nonphenolic substrates coupled to reduction of O to HO, are increasingly attractive as eco-friendly oxidation biocatalysts. Basidiomycota laccases are well characterized due to their potential in de-lignification of lignocellulose.

Pharmaceutical intervention after evaluation of the risk of ictus in elderly patients institutionalized with atrial fibrillation.

Objectives: To evaluate the risk of having a stroke and the risk of bleeding in institutionalized patients with atrial fibrillation. Atrial fibrillation is a common cardiac arrhythmia associated with increased morbidity and mortality. It is necessary to develop pharmacotherapy plans to minimize the risk.

Fuel-independent and membrane-less self-charging biosupercapacitor.

We present a fuel-independent self-charging biosupercapacitor comprising an oxygen reducing enzymatic biocathode and an opposing bioelectrode, in which the supercapacitive properties of immobilised protein were utilised. Our findings disclose a novel hybrid type of bioelectrochemical systems, which can potentially be employed as an autonomous power supplier under substrate-deficient conditions.

Salt-Induced Control of the Grafting Density in Poly(ethylene glycol) Brush Layers by a Grafting-to Approach.

In this work, a method to obtain control of the grafting density during the formation of polymer brush layers by the grafting-to method of thiolated poly(ethylene glycol) onto gold is presented. The grafting density of the polymer chains was adjusted by adding NaSO in concentrations between 0.2 and 0.

Links SU-Sex: development of a screening tool for health-risk sexual behaviours related to substance use among men who have sex with men.

Unlabelled: Background Men who have sex with men (MSM) have distinctive substance use (SU), which is more often linked to a sexual context than it is for their heterosexual peers. Screening of MSM's SU, its sexual contexts and the associated risks, is of clinical and public health concern. This paper aims to describe the preliminary development of a screening tool for health-risk sexual behaviours related to SU and to make recommendations for its potential use.

Direct Electron Transfer of Cellobiose Dehydrogenase on Positively Charged Polyethyleneimine Gold Nanoparticles.

Efficient conjugation between biomolecules and electrode materials is one of the main challenges in the field of biosensors. Cellobiose dehydrogenase (CDH) is a monomeric enzyme, which consists of two separate domains: one catalytic dehydrogenase domain (DH ) carrying strongly bound flavin adenine dinucleotide (FAD) in the active site and a cytochrome domain (CYT ) carrying a b-type heme connected by a flexible linker region. Herein, we report on the development of a lactose biosensor, based on direct electron transfer (DET) from CDH from Phanerochaete sordida (PsCDH) electrostatically attached onto polyethyleneimine-stabilized gold nanoparticles (PEI@AuNPs) used to cover a conventional polycrystalline solid gold disk electrode.

Direct Electron Transfer of Cellobiose Dehydrogenase on Positively Charged Polyethyleneimine Gold Nanoparticles.

Invited for this month's cover is the group of Prof. Dr. Lo Gorton at Lund University, Sweden.

[Lymphocele surgical treatment in pediatric kidney transplantation].

Background: In a retrospective study, we evaluated; frequency, clinical presentation and treatment of lymphocele in pediatric patients with kidney transplant.

Methods: Between January 2004 and January 2009, we had 242 kidney transplantations, 197 from living donors and 45 from cadaveric donors. The technique was the usual, and the implants of the ureteres were by the technique Ricard modified.

Direct electron transfer of Phanerochaete chrysosporium cellobiose dehydrogenase at platinum and palladium nanoparticles decorated carbon nanotubes modified electrodes.

In the present work, platinum and palladium nanoparticles (PtNPs and PdNPs) were decorated on the surface of multi-walled carbon nanotubes (MWCNTs) by a simple thermal decomposition method. The prepared nanohybrids, PtNPs-MWCNTs and PdNPs-MWCNTs, were cast on the surface of spectrographic graphite electrodes and then Phanerochaete chrysosporium cellobiose dehydrogenase (PcCDH) was adsorbed on the modified layer. Direct electron transfer between PcCDH and the nanostructured modified electrodes was studied using flow injection amperometry and cyclic voltammetry.

Control of rural house infestation by Triatoma infestans in the Bolivian Chaco using a microencapsulated insecticide formulation.

Background: Triatoma infestans, the main vector of Trypanosoma cruzi (causative agent of Chagas disease) has been successfully eliminated over much of its original geographic distribution over the southern cone countries of South America. However, populations of the species are still infesting houses of rural communities of the Gran Chaco region of Argentina and Bolivia. This study reports for the first time a large-scale effect of a vector control intervention using a microencapsulated formulation of organophosphates and insect growth regulator on house infestation by T.

Self-powered wireless carbohydrate/oxygen sensitive biodevice based on radio signal transmission.

Here for the first time, we detail self-contained (wireless and self-powered) biodevices with wireless signal transmission. Specifically, we demonstrate the operation of self-sustained carbohydrate and oxygen sensitive biodevices, consisting of a wireless electronic unit, radio transmitter and separate sensing bioelectrodes, supplied with electrical energy from a combined multi-enzyme fuel cell generating sufficient current at required voltage to power the electronics. A carbohydrate/oxygen enzymatic fuel cell was assembled by comparing the performance of a range of different bioelectrodes followed by selection of the most suitable, stable combination.

Tenofovir alafenamide vs. tenofovir disoproxil fumarate in single tablet regimens for initial HIV-1 therapy: a randomized phase 2 study.

Objectives: To evaluate the safety and efficacy of the novel tenofovir prodrug, tenofovir alafenamide (TAF), as part of a single-tablet regimen (STR) for the initial treatment of HIV-1 infection.

Design: Phase 2, randomized, double-blind, double-dummy, multicenter, active-controlled study.

Methods: Antiretroviral naive adults with HIV-1 RNA ≥5000 copies per milliliter and a CD4 count ≥50 cells per microliter were randomized 2:1 to receive an STR of elvitegravir/cobicistat/emtricitabine/tenofovir alafenamide (E/C/F/TAF) or elvitegravir/cobicistat/emtricitabine/tenofovir disoproxil fumarate (E/C/F/TDF), plus placebo for 48 weeks.

Once-daily dolutegravir versus darunavir plus ritonavir in antiretroviral-naive adults with HIV-1 infection (FLAMINGO): 48 week results from the randomised open-label phase 3b study.

Background: Dolutegravir has been shown to be non-inferior to an integrase inhibitor and superior to a non-nucleoside reverse transcriptase inhibitor (NNRTI). In FLAMINGO, we compared dolutegravir with darunavir plus ritonavir in individuals naive for antiretroviral therapy.

Methods: In this multicentre, open-label, phase 3b, non-inferiority study, HIV-1-infected antiretroviral therapy-naive adults with HIV-1 RNA concentration of 1000 copies per mL or more and no resistance at screening were randomly assigned (1:1) to receive either dolutegravir 50 mg once daily or darunavir 800 mg plus ritonavir 100 mg once daily, with investigator-selected tenofovir-emtricitabine or abacavir-lamivudine.

Implementation of QbD for the development of a vaccine candidate.

This case study provides an example of how Quality by Design (QbD) principles were applied to accelerate process development to manufacture a vaccine candidate at commercial scale. By leveraging an existing manufacturing platform process, a risk assessment was used to differentiate process parameters that could be defined using a combination of scientific and historical manufacturing knowledge from those that merited additional process characterization by experimentation. Select parameters, and their interactions, were evaluated by a Design of Experiment (DoE) series.