The Role of RNA m5C Modification in Central Nervous System Diseases.

As advances in RNA modification research progress, the significance of 5-methylcytosine (m5C) modification is being increasingly acknowledged. m5C undergoes modification by the methyltransferase NOP2/Sun domain (NSUN) family/DNA methyltransferase (DNMT) family (writer) and is removed by demethylases (eraser), including the ten-eleven translocation (TET) family and Alkb homolog 1 (ALKBH1). Moreover, m5C interacts with RNA-binding proteins (reader), such as Y-box-binding protein 1 (YBX1) and Aly/REF export factor (ALYREF).

A diamond-bearing core-mantle boundary on Mercury.

Abundant carbon was identified on Mercury by MESSENGER, which is interpreted as the remnant of a primordial graphite flotation crust, suggesting that the magma ocean and core were saturated in carbon. We re-evaluate carbon speciation in Mercury's interior in light of the high pressure-temperature experiments, thermodynamic models and the most recent geophysical models of the internal structure of the planet. Although a sulfur-free melt would have been in the stability field of graphite, sulfur dissolution in the melt under the unique reduced conditions depressed the sulfur-rich liquidus to temperatures spanning the graphite-diamond transition.

Prediction of Prostate Cancer Risk Stratification Based on A Nonlinear Transformation Stacking Learning Strategy.

Purpose: Prostate cancer (PCa) is an epithelial malignancy that originates in the prostate gland and is generally categorized into low, intermediate, and high-risk groups. The primary diagnostic indicator for PCa is the measurement of serum prostate-specific antigen (PSA) values. However, reliance on PSA levels can result in false positives, leading to unnecessary biopsies and an increased risk of invasive injuries.

A preliminary report on the exploration of salivary bacterial diversity by the multiplex SNaPshot assay.

Salivary bacterial community composition is associated with the host's internal and environmental factors, which have potential applications in forensic practice. The 16S rRNA gene sequencing is the most commonly used strategy for detecting salivary bacterial diversity; however, its platforms are not compatible with capillary electrophoresis (CE) platforms commonly used for forensic applications. Therefore, we attempted to detect the salivary bacterial diversity using a single nucleotide polymorphism (SNP) assay.

Multimodality deep learning radiomics nomogram for preoperative prediction of malignancy of breast cancer: a multicenter study.

. Breast cancer is the most prevalent cancer diagnosed in women worldwide. Accurately and efficiently stratifying the risk is an essential step in achieving precision medicine prior to treatment.

ULS4US: universal lesion segmentation framework for 2D ultrasound images.

. Deep learning (DL) methods have been widely utilized in ultrasound (US) image segmentation tasks. However, current DL segmentation methods for US images are typically developed only for lesion segmentation of specific organs; e.

Predictors of Thyroid Gland Invasion in Total Laryngectomy for Advanced Laryngeal Squamous Cell Carcinoma.

Thyroidectomy for advanced laryngeal squamous cell carcinoma (LSCC) is controversial. This study aimed to identify predictors of thyroid gland invasion in patients with LSCC and management of the thyroid gland during total laryngectomy. Clinical data and pathological characteristics of 113 patients, who underwent laryngectomy with thyroidectomy for advanced LSCC in Guangdong Provincial People's Hospital between 2009 and 2019, were retrospectively analyzed.

Intermittent fasting enhances hippocampal NPY expression to promote neurogenesis after traumatic brain injury.

Objectives: Interventions for preventing cognitive dysfunction after traumatic brain injury (TBI) are limited. Given that adult hippocampal neurogenesis after brain injury contributes to cognitive recovery, and hippocampal neurogenesis is potentially affected by nutritional factors, the aim of this study was to examine whether fasting could promote hippocampal neurogenesis and thus ameliorate the cognitive defects after TBI.

Methods: The present study used 8- to 10-wk-old C57 BL/6 N mice weighing 23 g, half males and half females.

Migration, transformation and nitrate source in the Lihu Underground River based on dual stable isotopes of δN-NO and δO-NO.

Nitrate (NO) pollution is a common phenomenon in karst underground rivers, which are important water sources in karst landscapes. For drinking water safety and environmental protection, it is crucial to accurately identify NO sources and their migration and transformation processes in the Lihu Underground River. In this study, water samples of the Lihu Underground River in Guangxi were collected in May 2014, October 2014, January 2015, and July 2015, and water chemical and dual isotopic (δN-NO and δO-NO) approaches were used to evaluate the NO characteristics and sources in the Lihu Underground River.

Thyroid gland invasion in total laryngectomy: A systematic review and meta-analysis.

Background: Although guidelines indicate that thyroidectomy should be performed routinely during total laryngectomy in patients with advanced laryngeal cancer, its clinical indications remain controversial. Some researchers believe that thyroid invasion is uncommon and that thyroid preservation should be considered in most cases.

Objective: This study aimed to identify the incidence and predictors of thyroid invasion in patients with laryngeal cancer to facilitate decision-making regarding whether to perform thyroidectomy during total laryngectomy.

Optogenetics for Understanding and Treating Brain Injury: Advances in the Field and Future Prospects.

Optogenetics is emerging as an ideal method for controlling cellular activity. It overcomes some notable shortcomings of conventional methods in the elucidation of neural circuits, promotion of neuroregeneration, prevention of cell death and treatment of neurological disorders, although it is not without its own limitations. In this review, we narratively review the latest research on the improvement and existing challenges of optogenetics, with a particular focus on the field of brain injury, aiming at advancing optogenetics in the study of brain injury and collating the issues that remain.

Monitoring of persistent organic pollutants in seawater of the Pearl River Estuary with rapid on-site active SPME sampling technique.

An on-site active solid-phase microextraction (SPME) sampling technique coupled with gas chromatography-mass spectrometry (GC-MS) for sampling and monitoring 16 polycyclic aromatic hydrocarbons (PAHs) and 8 organochlorine pesticides (OCPs) in seawater was developed. Laboratory experiments demonstrated that the sampling-rate calibration method was practical and could be used for the quantification of on-site sampling. The proposed method was employed for field tests which covered large amounts of water samples in the Pearl River Estuary in rainy and dry seasons.