Battle of the artificial intelligence: a comprehensive comparative analysis of DeepSeek and ChatGPT for urinary incontinence-related questions.

Background: With the rapid advancement and widespread adoption of artificial intelligence (AI), patients increasingly turn to AI for initial medical guidance. Therefore, a comprehensive evaluation of AI-generated responses is warranted. This study aimed to compare the performance of DeepSeek and ChatGPT in answering urinary incontinence-related questions and to delineate their respective strengths and limitations.

Machine learning-based prediction of G-CSF-induced hematopoietic stem cell mobilization outcomes in healthy volunteers.

Haematopoietic stem cell transplantation (HSC-T) has been established as a fundamental therapeutic intervention for a wide range of hematological malignancies and disorders, with a proven record of efficacy spanning over five decades. Peripheral blood (PB) has become the haematopoietic stem cell (HSC) source of choice, surpassing bone marrow, owing to its cost-effectiveness, reduced invasiveness, higher cell yields, and shorter hospitalizations. Clinically, granulocyte-colony stimulating factor (G-CSF) administration is the standard procedure for inducing HSC mobilization.

BRD4 acts as a transcriptional repressor of RhoB to inhibit terminal erythropoiesis.

Background: Terminal erythropoiesis is a complex multistep process involving coordination of gene transcription and dramatic nuclear condensation, which leads to the expulsion of nuclei to generate reticulocytes. However, we lack a comprehensive understanding of the key transcriptional and epigenetic regulators involved.

Methods: We used a high-throughput small molecule screen in primary CD34-derived human erythroblasts to identify targets that promoted terminal erythropoiesis, and further confirmed the phenotype in different differentiation systems by inhibitors and shRNAs of different BRD4 isoforms.

Apelin Alleviated Endothelial-To-Mesenchymal Transition via Increasing BKCa in Diabetic Nephropathy.

Endothelial-to-mesenchymal transition (EndMT) is a critical pathophysiological process in fibrosis which is associated with large conductance calcium-activated potassium (BKCa) channels. Apelin, an adipokine, was reported to alleviate glomerular EndMT mainly caused by hyperglycemia in diabetic nephropathy (DN) and related to BKCa. Therefore, it is supposed that apelin reduced glomerular EndMT by increasing BKCa in glomerular endothelial cells (GECs).

ELTD1 inhibits differentiation of hemogenic endothelium progenitors from human embryonic stem cells through the HPIP-Wnt pathway.

Human embryonic stem cells (hESCs) serve as an ideal cell source for generating hematopoietic stem cells (HSCs). In embryonic hematopoiesis, hemogenic endothelium has been identified as a source of HSCs, yet the regulatory mechanisms remain elusive. Here, through dynamic gene expression profiling analysis and verification, we find that ELTD1 expression parallels genes related to the specification of hemogenic endothelium progenitors (HEPs) from hESCs and is highly expressed in the HEPs.

Apelin/APJ alleviates diabetic nephropathy by improving glomerular endothelial cells dysfunction via SIRT3‑KLF15.

Glomerular basement membrane (GBM) thickening, the earliest morphological change of diabetic nephropathy (DN), is related to glomerular endothelial cells (GECs) dysfunction which increase extracellular matrix (ECM) synthesizing. Apelin, the endogenous ligand for apelin/apelin receptor (APJ), is reported to alleviate endothelial cell dysfunction in DN. Therefore, it was hypothesized that apelin/APJ reduced GBM thickening by decreasing the synthesis of ECM in GECs.

Exercise ameliorates osteopenia in mice via intestinal microbial-mediated bile acid metabolism pathway.

Physical exercise is essential for skeletal integrity and bone health. The gut microbiome, as a pivotal modulator of overall physiologic states, is closely associated with skeletal homeostasis and bone metabolism. However, the potential role of intestinal microbiota in the exercise-mediated bone gain remains unclear.

Apelin-13 inhibits ischemia-reperfusion mediated podocyte apoptosis by reducing m-TOR phosphorylation to enhance autophagy.

Podocytes are essential to maintain the normal filtration function of glomerular basement membrane, which could be injured by ischemia-reperfusion. As complicated function of autophagy in terminal differentiated podocytes, autophagy dysfunction might contribute to I/R induced renal dysfunction following glomerular filtration membrane (GFM) injuries. Meanwhile, apelin-13, an endogenous polypeptide, has been proved to be effective in regulating autophagy and apoptosis in podocytes.

[Expert consensus on ethical requirements for artificial intelligence (AI) processing medical data].

As artificial intelligence technology rapidly advances, its deployment within the medical sector presents substantial ethical challenges. Consequently, it becomes crucial to create a standardized, transparent, and secure framework for processing medical data. This includes setting the ethical boundaries for medical artificial intelligence and safeguarding both patient rights and data integrity.

Soluble receptor for advanced glycation end-products positively correlated to kidney injury with coronary heart disease.

Aims: Coronary heart disease (CHD) patients with changed serum soluble receptor for advanced glycation end products (sRAGE) will experience microalbuminuria and even kidney dysfunction. However, the role of sRAGE for microalbuminuria in CHD is still not established. This study aimed to evaluate the association between sRAGE and early kidney dysfunction in CHD patients.

Soluble RAGE attenuates myocardial I/R injury by suppressing interleukin-6.

Background: Inflammatory responses play a central role in myocardial ischemia/reperfusion (I/R) injury. Previous studies have demonstrated that the receptor for advanced glycation end-products (RAGE) is involved in the pro-inflammatory process of myocardial I/R injury by binding to diverse ligands. Thus, the inhibitory effects of soluble receptor for advanced glycation end-products (sRAGE), a decoy receptor for RAGE, on myocardial I/R injury may be associated with a reduced inflammatory state.

Differential impact of chronic intermittent hypoxia and stress changes on condylar development.

Objectives: This study aimed to determine the effects of chronic intermittent hypoxia (CIH) and stress change (SC) on the development of the condyle in mouth breathing rats.

Design: A total of 120 4-week-old rats were randomly assigned to one of five groups. The control (Ctrl) group was the blank control and the intermittent nasal obstruction (INO) group was the positive control.

A metabolic atlas of blood cells in young and aged mice identifies uridine as a metabolite to rejuvenate aged hematopoietic stem cells.

Aging of hematopoietic stem cells (HSCs) is accompanied by impaired self-renewal ability, myeloid skewing, immunodeficiencies and increased susceptibility to malignancies. Although previous studies highlighted the pivotal roles of individual metabolites in hematopoiesis, comprehensive and high-resolution metabolomic profiles of different hematopoietic cells across ages are still lacking. In this study, we created a metabolome atlas of different blood cells across ages in mice.

Endogenous attention enhances contrast appearance regardless of stimulus contrast.

There has been enduring debate on how attention alters contrast appearance. Recent research indicates that exogenous attention enhances contrast appearance for low-contrast stimuli but attenuates it for high-contrast stimuli. Similarly, one study has demonstrated that endogenous attention heightens perceived contrast for low-contrast stimuli, yet none have explored its impact on high-contrast stimuli.

Double closed loop PI control with full compensation arc elimination based on zero sequence voltage of neutral point.

Aiming at the problem of zero sequence voltage generated by unbalance parameters of line to ground, which affects arc suppression effect of grounding fault of controllable voltage source. By analyzing the influence of ground unbalance parameters on the arc suppression effect of controllable voltage source under different grounding modes, the mechanism of full compensation arc suppression based on zero sequence voltage of neutral point is revealed, and on this basis, a fully compensated arc suppression model of controllable voltage source controlled by double closed loop PI is established, and the deviation control is carried out by using the neutral voltage of distribution network and the voltage of fault phase supply. The residual voltage ring adopts the ground fault phase residual voltage for closed loop control.

Monocytes in allo-HSCT with aged donors secrete IL-1/IL-6/TNF to increase the risk of GVHD and damage the aged HSCs.

Aging is considered a critical factor of poor prognosis in allogenic hemopoietic stem cell transplantation (allo-HSCT). To elucidate the underlying mechanisms, we comprehensively reintegrated our clinical data from patients after allo-HSCT and public single-cell transcriptomic profile from post-allo-HSCT and healthy individuals, demonstrating that old donors were more prone to acute GVHD (aGVHD) with pronounced inflammation accumulation and worse overall survival (OS). We also found the presence of inflammation-related CXCL2+ HSC subpopulation during aging with significantly enriched pro-inflammatory pathways.

Nrf2 for a key member of redox regulation: A novel insight against myocardial ischemia and reperfusion injuries.

Nuclear factor erythroid-2 related factor 2 (Nrf2), a nuclear transcription factor, modulates genes responsible for antioxidant responses against toxic and oxidative stress to maintain redox homeostasis and participates in varieties of cellular processes such as metabolism and inflammation during myocardial ischemia and reperfusion injuries (MIRI). The accumulation of reactive oxygen species (ROS) from damaged mitochondria, xanthine oxidase, NADPH oxidases, and inflammation contributes to depraved myocardial ischemia and reperfusion injuries. Considering that Nrf2 played crucial roles in antagonizing oxidative stress, it is reasonable to delve into the up or down-regulated molecular mechanisms of Nrf2 in the progression of MIRI to provide the possibility of new therapeutic medicine targeting Nrf2 in cardiovascular diseases.

High-Performance Planar Field-Emission Photodetector of Monolayer Tungsten Disulfide with Microtips.

Monolayer tungsten disulfide (ML WS ) is believed as an ideal photosensitive material due to its small direct bandgap, large exciton/trion binding energy, high carrier mobility, and considerable quantum conversion efficiency. Compared with other photosensitive devices, planar field emission (FE)-type photodetectors with a full-plane structure should simultaneously have rapider switching speed and lower power consumption. In this work, ML WS microtips are fabricated by electron beam lithography (EBL) way and used to construct a planar FE-type photodetector.

A novel design for magnetic tweezers with wide-range temperature control.

Single-molecule manipulation technologies have proven to be powerful tools for studying the molecular mechanisms and physical principles underlying many essential biological processes. However, achieving wide-range temperature control has been challenging due to thermal drift that undermines the stability of the instrument. This limitation has made it difficult to study biomolecules from thermophiles at their physiologically relevant temperatures and has also hindered the convenient measurement of temperature-sensitive biomolecular interactions and the fundamental thermodynamic properties of biomolecules.

Glia maturation factor-γ is required for initiation and maintenance of hematopoietic stem and progenitor cells.

Background: In vertebrates, hematopoietic stem and progenitor cells (HSPCs) emerge from hemogenic endothelium in the floor of the dorsal aorta and subsequently migrate to secondary niches where they expand and differentiate into committed lineages. Glia maturation factor γ (gmfg) is a key regulator of actin dynamics that was shown to be highly expressed in hematopoietic tissue. Our goal is to investigate the role and mechanism of gmfg in embryonic HSPC development.

Fecal microbiota transplantation from young mice rejuvenates aged hematopoietic stem cells by suppressing inflammation.

Hematopoietic stem cell (HSC) aging is accompanied by hematopoietic reconstitution dysfunction, including loss of regenerative and engraftment ability, myeloid differentiation bias, and elevated risks of hematopoietic malignancies. Gut microbiota, a key regulator of host health and immunity, has recently been reported to affect hematopoiesis. However, there is currently limited empirical evidence explaining the direct impact of gut microbiome on aging hematopoiesis.

High Responsivity Vacuum Nano-Photodiode Using Single-Crystal CsPbBr Micro-Sheet.

Field electron emission vacuum photodiode is promising for converting free-space electromagnetic radiation into electronic signal within an ultrafast timescale due to the ballistic electron transport in its vacuum channel. However, the low photoelectric conversion efficiency still hinders the popularity of vacuum photodiode. Here, we report an on-chip integrated vacuum nano-photodiode constructed from a Si-tip anode and a single-crystal CsPbBr cathode with a nano-separation of ~30 nm.

Targeting ferroptosis: a novel insight against myocardial infarction and ischemia-reperfusion injuries.

Ferroptosis, a newly discovered form of regulated cell death dependent on iron and reactive oxygen species, is mainly characterized by mitochondrial shrinkage, increased density of bilayer membranes and the accumulation of lipid peroxidation, causing membrane lipid peroxidation and eventually cell death. Similar with the most forms of regulated cell death, ferroptosis also participated in the pathological metabolism of myocardial infarction and myocardial ischemia/reperfusion injuries, which are still the leading causes of death worldwide. Given the crucial roles ferroptosis played in cardiovascular diseases, such as myocardial infarction and myocardial ischemia/reperfusion injuries, it is considerable to delve into the molecular mechanisms of ferroptosis contributing to the progress of cardiovascular diseases, which might offer the potential role of ferroptosis as a targeted treatment for a wide range of cardiovascular diseases.