A dual-mode biosensor for microRNA detection based on DNA tetrahedron-gated nanochannels.

A biosensor based on solid-state nanochannels of anodic aluminum oxide (AAO) membrane for both electrochemical and naked-eye detection of microRNA-31 (MiR-31) is proposed. For this purpose, MoS nanosheets, which possess different adsorption capabilities to single-stranded and double-stranded nucleic acids, are deposited onto the top surface of the AAO membrane. Moreover, multi-functional DNA nanostructure have been designed by linking a G-rich sequence for folding to a G-quadruplex at three vertices and a complementary sequence of MiR-31 at the other one vertex of a DNA tetrahedron.

circCCNY enhances lenvatinib sensitivity and suppresses immune evasion in hepatocellular carcinoma by serving as a scaffold for SMURF1 mediated HSP60 degradation.

Lenvatinib is the standard first-line therapy for advanced hepatocellular carcinoma (HCC), but drug resistance significantly hampers its efficacy. Increasing evidence has shown that circular RNAs (circRNAs) play critical roles in HCC pathogenesis. However, the underlying mechanisms of lenvatinib sensitivity regulated by circRNAs remain largely unclear.

How to Identify Pesticide Targets?

Pesticides are essential in contemporary agriculture, as they improve crop yields and quality while safeguarding against pests. However, long-term heavy use of traditional pesticides has led to increased pest resistance, while these pesticides are often toxic and less selective, and may also have adverse effects on the environment and nontarget organisms. To solve this problem, it is important to find new targets for pesticide to develop more effective and environmentally friendly alternatives.

Remote epitaxy and exfoliation of vanadium dioxide via sub-nanometer thick amorphous interlayer.

The recently emerged remote epitaxy technique, utilizing 2D materials (mostly graphene) as interlayers between the epilayer and the substrate, enables the exfoliation of crystalline nanomembranes from the substrate, expanding the range of potential device applications. However, remote epitaxy has been so far applied to a limited range of material systems, owing to the need of stringent growth conditions to avoid graphene damaging, and has therefore remained challenging for the synthesis of oxide nanomembranes. Here, we demonstrate the remote epitaxial growth of an oxide nanomembrane (vanadium dioxide, VO) with a sub-nanometer thick amorphous interlayer, which can withstand potential sputtering-induced damage and oxidation.

Molecular-scale in-operando reconfigurable electronic hardware.

It is challenging to reconfigure devices at molecular length scales. Here we report molecular junctions based on molecular switches that toggle stably and reliably between multiple operations to reconfigure electronic devices at molecular length scales. Rather than static on/off switches that always revert to the same state, our voltage-driven molecular device dynamically switches between high and low conduction states during six consecutive proton-coupled electron transfer steps.

Insulin resistance has closer correlation with the occurrence of metabolic dysfunction associated steatotic liver disease diagnosed by liver biopsy.

Objective: To explore any correlation between serum urate (SU) level or insulin resistance (IR) and metabolic dysfunction associated steatotic liver disease (MASLD) in patients with metabolic syndrome (MS).

Methods: Data from all MASLD patients, diagnosed by liver biopsy, were enrolled and divided into MASLD alone group and MASLD with MS group. They were subdivided into hyperuricemia group and normal SU group to find correlation between SU/IR and MASLD in patients with MS and independent risk factors for MASLD.

Pituitary stalk interruption syndrome complicated with liver cirrhosis: A case report.

Background: Pituitary stalk interruption syndrome (PSIS) is a rare disorder, often characterized by delayed growth and development, short stature, and hypogonadism as the main clinical manifestations. It is not clear whether PSIS can lead to liver cirrhosis.

Case Summary: This paper reported a case of liver cirrhosis of unknown origin.

Interaction between intratumoral microbiota and neutrophils influences tumor progression.

In recent years, complex interactions between intratumoral bacteria and neutrophils have been identified as significant factors in tumor occurrence and development. This commentary synthesizes findings from the past five years to explore these interactions. It is observed that during tumor progression, intratumoral bacteria promote neutrophil infiltration and the formation of neutrophil extracellular traps (NETs), which in turn drive tumor development and metastasis.

Impact of Astigmatism on Axial Elongation in School-Age Children: A Five-Year Population-Based Study in Tianjin, China.

Purpose: To investigate the progression rates of axial length (AXL) among school-age children with baseline astigmatism and spherical ametropia.

Methods: Annual vision screenings were conducted at seven schools in Tianjin, China, from 2018 to 2022. Ocular biometry and non-cycloplegic autorefraction were collected.

The E3 ubiquitin ligase RNF6 facilitates the progression of cervical cancer by inhibiting the Hippo/Yap pathway.

Purpose: Cervical cancer (CC), a significant global health threat, necessitates comprehensive understanding for improved therapeutic interventions. Many research indicates that dysregulation of the Hippo-YAP1 pathway leads to uncontrolled proliferation and invasion of tumor cells, promoting the progression of various cancers. This article aims to elucidate the role of RNF6 in CC and its regulation of the Hippo-YAP1 signaling pathway.

Ginsenoside Rg1 Promotes Wound Healing in Mice with Superficial Second-Degree Burns Through Energy Metabolism, Cell Migration, and Cell Adhesion Pathways.

Natural products are known to have distinct roles in the treatment of various diseases. However, the potential role of ginsenoside Rg1 (GRg1) in the context of scald injuries remains unclear. This study aimed to elucidate the effects of GRg1 on scald wound healing by utilizing a mouse scald wound model and administering varying concentrations of GRg1 orally.

Epigenetic modification of hepatitis B virus infection and related hepatocellular carcinoma.

Hepatitis B virus (HBV) infection poses a challenge to global public health. Persistent liver infection with HBV is associated with an increased risk of developing severe liver disease. The complex interaction between the virus and the host is the reason for the persistent presence of HBV and the risk of tumor development.

A protein elicitor PeVn1 from HW recognized as a MAMP triggers plant immunity response.

Protein elicitors can induce plant systemic resistance to pathogens. The recognition of a potential elicitor activates intracellular signaling events, leading to plant resistance against pathogens. In this study, a novel protein elicitor was isolated from the culture filtrate of and named PeVn1, which can induce cell death in several plant species.

Integration strategies involving 16S rDNA sequencing combined with untargeted metabolomics revealed the mechanism of Selaginella tamariscina (Beauv.) Spring in db/db diabetic mice.

Selaginella tamariscina extracts (STS), total flavonoids of Selaginella tamariscina (TFST) and the main active component amentoflavone (AMT) have hypoglycaemic-mitigating effects, but their efficacy and mechanism of action in db/db mice are unknown. This study aimed to evaluate the hypoglycaemic effects of Selaginella tamariscina and its extracts in db/db diabetic mice and explore their mechanisms through gut microbiota modulation and metabolomics. Sixty male db/db mice were divided into model (db/db), STS (1.

Synthesis of chiral α-amino acids Pd(ii)-catalyzed enantioselective C-H arylation of α-aminoisobutyric acid.

Non-natural chiral α,α-disubstituted α-amino acids (α,α-AAs) constitute an attractive α-aminoisobutyric acid (Aib) replacement for improving bioavailability of linear peptides as therapeutics due to the ability of these amino acids to induce the peptides to form helical structures. Enantioselective β-C(sp)-H arylation of Aib could potentially provide a versatile one-step strategy for accessing diverse α,α-AAs, but the installation and removal of external directing groups was found in our previously reported work to reduce the efficiency of this approach. Herein we report a Pd(ii)-catalyzed enantioselective C-H arylation of -phthalyl-protected Aib enabled by a -2,6-difluorobenzoyl aminoethyl phenyl thioether (MPAThio) ligand, affording α,α-AAs with up to 72% yield and 98% ee.

Molecular switching by proton-coupled electron transport drives giant negative differential resistance.

To develop new types of dynamic molecular devices with atomic-scale control over electronic function, new types of molecular switches are needed with time-dependent switching probabilities. We report such a molecular switch based on proton-coupled electron transfer (PCET) reaction with giant hysteric negative differential resistance (NDR) with peak-to-valley ratios of 120 ± 6.6 and memory on/off ratios of (2.

DNA aptamers for common buffer molecules: possibility of buffer interference in SELEX.

During a typical aptamer selection experiment, buffer molecules are used at the 10 to 50 mM range, whereas target molecules could be used at much lower concentrations even in low μM levels. Therefore, doubts existed regarding the potential enrichment of buffer binding aptamers, particularly for failed selections that cannot validate binding of enriched sequences. In this study, we used two common buffer molecules, Tris and HEPES, as target molecules.