Expanding Cas12a Activity Control with an RNA G-Quadruplex at the 5' end of CRISPR RNA.

Precise control of Cas12a activity is essential for the improvement of the detection limit of clinical diagnostics and the minimization of errors. This study addresses the challenge of controlling Cas12a activity, especially in the context of nucleic acid detection where the inherent incompatibility between isothermal amplification and CRISPR reactions complicates accurate diagnostics. An RNA G-quadruplex (RG4) structure at the 5' end of crRNA is introduced to modulate Cas12a activity accurately without the need for chemical modifications.

Integration of multi-omics transcriptome-wide analysis for the identification of novel therapeutic drug targets in diabetic retinopathy.

Background: Diabetic retinopathy (DR) is the most important complication of Type 2 Diabetes (T2D) in eyes. Despite its prevalence, the early detection and management of DR continue to pose considerable challenges. Our research aims to elucidate potent drug targets that could facilitate the identification of DR and propel advancements in its therapeutic strategies.

Ultrasound guidance in the surgical removal of internal fixators after complete healing of limb fractures.

Purpose: The aim of this study was to determine whether ultrasound guidance can reduce the duration, blood loss volume and invasiveness of surgery for internal fixator removal.

Methods: The clinical data from 35 adults patients who underwent ultrasound-guided surgical removal of internal fixators after complete healing of limb fractures between June 2019 and April 2023 were retrospectively analysed and compared with those from 34 controls who underwent the procedure without ultrasound guidance. Data concerning the patients' demographic and clinical characteristics and surgical sites were collected.

Streptococcus agalactiaeInfection of a Reconstructed Human Respiratory Epithelium Revealed Infection and Host Response Characteristics by Different Serotypes.

Background: Streptococcus agalactiae poses a significant threat to neonatal health, causing morbidity and mortality when transmitted from the maternal vagina to the newborn's respiratory tract. Among its various strains, serotype III is predominant in severe neonatal infections in Asia. However, the mechanisms of pathogenesis and host responses underlying serotype-specific disease outcomes remain poorly understood.

Effects of Yersinia pseudotuberculosis outer membrane vesicles on Pseudomonas aeruginosa antigens immune response.

Outer membrane vesicles (OMVs) are immunogenic self-adjuvanting vesicles produced by Gram-negative bacteria such as Pseudomonas aeruginosa and Yersinia pseudotuberculosis. While the effects of OMVs on different antigens immune stimulation are not clear. In this study, we constructed recombinant Yersinia pseudotuberculosis ΔlpxL strain,with pBlue-PcrV and pBlue-OprF/I, and then purified ΔlpxL rOMVPcrV (rOMVyp2P)and ΔlpxL rOMVOprF/I (rOMVyp2F) and analyzed its effect on immune response and protection against Pseudomonas aeruginosa PAO1 infection.

Application of third-generation sequencing technology in the genetic testing of thalassemia.

Thalassemia is an autosomal recessive genetic disorder and a common form of Hemoglobinopathy. It is classified into α-thalassemia and β-thalassemia. This disease is mainly prevalent in tropical and subtropical regions, including southern China.

The impact of a low-calorie, reduced-fat diet on liver attenuation imaging: a randomized clinical trial.

Purpose: To investigate whether a low-calorie, reduced-fat diet affects liver attenuation imaging (ATI) measurements.

Methods: A total of 320 participants were enrolled in this prospective study. They were randomly assigned to four groups: a fasting group, a postprandial 0.

Loss of Trim31 Worsens Cardiac Remodeling in a Mouse Model of Heart Failure by Enhancing the Activation of the NLRP3 Inflammasome.

Tripartite motif-containing protein 31 (Trim31) is known to be involved in various pathological conditions, including heart diseases. Nonetheless, its specific involvement in heart failure (HF) has yet to be determined. In this study, we examined the function and mechanism of Trim31 in HF by using mice with cardiac-specific knockout (cKO) of Trim31.

Lactylation-related gene signature accurately predicts prognosis and immunotherapy response in gastric cancer.

Background: Gastric cancer (GC) is a malignant tumor associated with significant rates of morbidity and mortality. Hence, developing efficient predictive models and directing clinical interventions in GC is crucial. Lactylation of proteins is detected in gastric cancer tumors and is linked to the advancement of gastric cancer.

High Plasma Levels of S-adenosylhomocysteine is Related with the Risk of All-cause and Cardiovascular Mortality in Patients with Coronary Artery Disease.

Aims: Plasma S-adenosylhomocysteine (SAH) level is positively associated with cardiovascular risk. However, the relationship between plasma SAH levels and the risk of all-cause and cardiovascular mortality remains unknown. This study aimed to explore the relationship between plasma SAH levels and the risk of all-cause and cardiovascular mortality in patients with coronary artery disease (CAD).

SUSD2 cancer-associated fibroblasts in gastric cancer mediate the effect of immunosuppression and predict overall survival and the effectiveness of neoadjuvant immunotherapy.

Background: The expression patterns and functions of Sushi Domain Containing 2 (SUSD2) differ among various malignancies. This research aims to investigate the expression of SUSD2 and the role of the SUSD2 cancer-associated fibroblasts (CAFs) for immunotherapy in gastric cancer.

Methods: The expression of SUSD2 and specific markers (CD4, CD8, PD-1, TIGIT, TIM-3 and CD163) was determined using immunohistochemistry and multiplex immunofluorescence (mIHC) on paraffin sections.

Hsa_Circ_0105596/FTO inhibits progression of Parkinson's disease by sponging miR-187-3p and regulating eEF2.

Background: Parkinson's disease (PD) characterized by inflammation and protein erroneous deposition, whose pathological mechanisms have not been elucidated. NcRNA plays important role in PD, especially when circRNA sponges miRNA, which leads to the breakdown of downstream regulation. The aim of this study is to investigate the dynamic changes between upregulated circRNA and downregulated miRNA during the pathogenesis of PD and their impact on downstream miRNA targets.

Butyrate-producing suppresses natural killer/T-cell lymphoma by dampening the JAK-STAT pathway.

Background: Natural killer/T-cell lymphoma (NKTCL) is a highly aggressive malignancy with a dismal prognosis, and gaps remain in understanding the determinants influencing disease outcomes.

Objective: To characterise the gut microbiota feature and identify potential probiotics that could ameliorate the development of NKTCL.

Design: This cross-sectional study employed shotgun metagenomic sequencing to profile the gut microbiota in two Chinese NKTCL cohorts, with validation conducted in an independent Korean cohort.

Constructing small for gestational age prediction models: A retrospective machine learning study.

Objective: To develop machine learning prediction models for small for gestational age with baseline characteristics and biochemical tests of various pregnancy stages individually and collectively and compare predictive performance.

Study Design: This retrospective study included singleton pregnancies with infants born between May 2018 and March 2023. Small for gestational age was defined as a birth weight below the 10th percentile according to the Intergrowth-21st fetal growth standards.

A new thyroid imaging reporting and data system for nodules: Based on grayscale and color Doppler ultrasonography.

Objective: To construct and validate a new thyroid imaging reporting and data system (TI-RADS) based on radiating blood flow and grayscale US features.

Materials And Methods: This study enrolled patients from 4 hospitals from January 2018 to November 2023 retrospectively and prospectively. All US features associated with malignant thyroid nodules were assessed by multivariable logistic regression to construct baseline US TI-RADS (BUS TI-RADS), which was tested with internal validation set, external validation set and prospective validation set.

Nomograms for predicting the prognosis in multiple primary esophageal squamous cell carcinoma.

Background: Due to its rarity, it is challenging to predict the survival of patients with synchronous multiple primary esophageal squamous carcinomas (SMPESCs). We aimed to construct nomograms to predict survival outcomes and help to make therapeutic strategy for patients with SMPESCs.

Materials And Methods: The clinical and survival data of 135 patients with SMPESCs were analyzed retrospectively.

γ-Glutamyl transpeptidase-activable nanoprobe crosses the blood-brain barrier for immuno-sonodynamic therapy of glioma.

Effective treatment against glioma remains challenging nowadays because the protective blood-brain barrier (BBB) impedes drug penetration into brain and the limited efficacy of conventional chemotherapy. While strong positively charged nanoparticles have good permeability through the BBB, they often come with the caveat of cationic toxicity to healthy tissues and organs during blood circulation. Here we show a neutrally charged nanoprobe with a surface decorated with γ-glutamyl moieties that can be cleaved by γ-glutamyl transpeptidase, an enzyme overexpressed on brain capillaries.

Bmal1 haploinsufficiency impairs fear memory and modulates neuroinflammation via the 5-HT2C receptor.

Background: BMAL1, a key regulator of circadian rhythms, plays a multifaceted role in brain function. However, the complex interplay between BMAL1, memory, neuroinflammation, and neurotransmitter regulation remains poorly understood. To investigate these interactions, we conducted a study using BMAL1-haplodeficient mice (BMAL1).

Regulatory Effect of PDGF/PDGFR on Hematopoiesis.

Platelet-derived growth factor (PDGF) is a critical cytokine with substantial regulatory effects on hematopoiesis. Recent research highlights the essential role of PDGF in the modulation of hematopoietic stem/progenitor cells (HSPCs), megakaryocytes/platelets, and thrombopoietin (TPO) synthesis within the bone marrow microenvironment. PDGF directly stimulates the proliferation and differentiation of HSPCs while also inhibiting apoptosis.

Ferroptosis-related biomarkers for adamantinomatous craniopharyngioma treatment: conclusions from machine learning techniques.

Introduction: Adamantinomatous craniopharyngioma (ACP) is difficult to cure completely and prone to recurrence after surgery. Ferroptosis as an iron-dependent programmed cell death, may be a critical process in ACP. The study aimed to screen diagnostic markers related to ferroptosis in ACP to improve diagnostic accuracy.

The treatment and outcome prediction analysis of pediatric acquired severe aplastic anemia.

Pediatric acquired severe aplastic anemia (SAA), a prevalent non-malignant hematological disorder, presents significant therapeutic challenges and carries considerable risks. Despite substantial progress in immunosuppressive therapy (IST) and allogeneic hematopoietic stem cell transplantation (allo-HSCT) in recent years, the protracted treatment duration, substantial costs, and significant disparities in long-term survival outcomes among patients remain problematic. Identifying predictors of treatment response before therapy initiation is crucial for optimal clinical decision-making and complication prevention.

Development and validation of a nomogram to predict the survival and estimate surgical benefits for gastric cancer with liver metastasis receiving primary tumor resection.

Background: Surgical treatment has been widely controversial for gastric cancer accompanied by liver metastasis (GCLM). This paper aims to develop and validate a nomogram to predict the survival and estimate surgical benefits for GCLM patients.

Methods: A total of 616 GCLM patients from the Surveillance, Epidemiology, and End Results Program (SEER) database and 74 GCLM patients receiving primary tumor resection (PTR) from the Chinese center were included in this study.