Publications by authors named "Yiming Qin"

Although cisplatin is widely used as a first-line chemotherapy agent, it has significant side effects. Herein, we synthesized a Pt(II) complex (Pt1) derived from o-vanillin-4-phenylthiosemicarbazone ligand, and confirmed its crystal structure by X-ray crystallography. Complex Pt1 exhibited potent anticancer activity against various tested cancer cell lines, with particular efficacy against HepG-2 cells.

View Article and Find Full Text PDF

Biomass-burning organic aerosol(s) (BBOA) are rich in brown carbon, which significantly absorbs solar irradiation and potentially accelerates global warming. Despite its importance, the multiphase photochemistry of BBOA after light absorption remains poorly understood due to challenges in determining the oxidant concentrations and the reaction kinetics within aerosol particles. In this study, we explored the photochemical reactivity of BBOA particles in multiphase S(IV) oxidation to sulfate.

View Article and Find Full Text PDF

With the growing demand for precision medicine and advancements in microneedle technology, microneedle-based drug delivery systems have evolved into integrated theranostic platforms. However, the development of these systems is currently limited by the absence of clear conclusions and standardized construction strategies. The end-to-end concept offers an innovative approach to theranostic systems by creating a seamless process that integrates target sampling, sensing, analysis, and on-demand drug delivery.

View Article and Find Full Text PDF
Article Synopsis
  • Researchers developed a thermosensitive gel using poloxamer and modified chitosan that shows excellent properties for eye treatment, including good water absorption and antibacterial effects against common bacteria.
  • The gel's structure is macroporous, enhancing its ability to stick to the cornea while allowing for airflow, making it suitable for ocular applications.
  • In tests, the gel demonstrated sustained release of the antibiotic levofloxacin over 48 hours and showed strong binding with proteins related to bacteria and corneal tissues, indicating its potential for effective ocular drug delivery.
View Article and Find Full Text PDF

Ionization desorption of charged analytes from the surface of solid amorphous glutaric acid particles, without the assistance of an external energy source, has been shown to be a promising method that can be coupled to mass spectrometry. We conduct mechanistic studies of the later stages of this ionization process using atomistic molecular dynamics. Our analysis focuses on the hydrogen bonding, diffusion, and ion desorption from nano-aggregates of glutaric acid.

View Article and Find Full Text PDF

Metabolic dysfunction-associated steatotic liver disease (MASLD) represents a global health concern, affecting over 30 % of adults. It is a principal driver in the development of cirrhosis and hepatocellular carcinoma. The complex pathogenesis of MASLD involves an excessive accumulation of lipids, subsequently disrupting lipid metabolism and prompting inflammation within the liver.

View Article and Find Full Text PDF

In the treatment of infected wounds in bedridden or lying chair patients with mobility problems, improper wound care can lead to wound deterioration, prolong disease pain, increase treatment and care costs, and bring heavier psychological, physical, and economic burdens to patients. In the process of wound recovery, patients with mobility problems mainly face the comprehensive problems of poor air permeability, wound pressure could not be monitored, wound infection and slow healing. Therefore, in the process of wound care for such patients, it is imperative to develop a gas permeable dressing that can monitor the patient's wound compression status in real time and promote wound healing.

View Article and Find Full Text PDF
Article Synopsis
  • Reconstruction of the neurovascular unit is crucial for healing spinal cord injuries (SCI), but research on specific vascular changes and treatments is still lacking.
  • A study shows that after SCI, significant vascular remodeling occurs, including larger blood vessels and damage to the blood-spinal cord barrier, influenced by osteopontin (OPN) that aids in early regeneration but also promotes pathological changes.
  • Targeting the mechanism of OPN by inhibiting Foxo1 phosphorylation can reduce harmful vascular changes, leading to better axon regeneration and recovery of neurological functions after SCI, suggesting new drug therapy approaches.
View Article and Find Full Text PDF

Background: The causality between neuroticism, a personality trait characterized by the tendency to experience negative emotions, and female reproductive diseases remains unclear. To provide evidence for the development of effective screening and prevention strategies, this study employed Mendelian randomization (MR) to investigate the causality between neuroticism clusters and female reproductive diseases.

Methods: Instrumental variables were obtained from large-scale genome-wide association studies of populations of European descent involving three neuroticism clusters (depressed affect, worry, sensitivity to environmental stress, and adversity [SESA]) in the Complex Trait Genetics database and six female reproductive diseases (infertility, polycystic ovary syndrome [PCOS], spontaneous abortion, recurrent spontaneous abortion, endometriosis, and uterine fibroids) in the FinnGen database.

View Article and Find Full Text PDF

Significant volumes of agricultural and industrial waste are produced annually. With the global focus shifting towards sustainable and environmentally friendly practices, there is growing emphasis on recycling and utilizing materials derived from such waste, such as cellulose and lignin. In response to this imperative situation, nanocellulose materials have surfaced attracting heightened attention and research interest owing to their superior properties in terms of strength, stiffness, biodegradability, and water resistance.

View Article and Find Full Text PDF
Article Synopsis
  • Spinal cord injuries disrupt the corticospinal tract, and while some regeneration occurs, the mechanisms behind this process are not fully understood.
  • Researchers discovered that the protein METTL14, which promotes m6A RNA modifications, is upregulated in the locomotor cortex following a spinal cord injury, aiding in the regeneration process.
  • Additionally, the study showed that stabilizing METTL14 with a compound called syringin enhances corticospinal tract regeneration and improves neurological recovery, indicating the significance of m6A modifications in this context.
View Article and Find Full Text PDF
Article Synopsis
  • Primary diabetes care and diabetic retinopathy (DR) screening face challenges due to a lack of trained primary care physicians, especially in low-resource areas.
  • The integrated image-language system, DeepDR-LLM, combines a language model and deep learning to help PCPs provide tailored diabetes management recommendations, showing comparable or better accuracy than PCPs in diagnosing DR.
  • In a study, patients assisted by DeepDR-LLM demonstrated improved self-management and adherence to referral recommendations, indicating that the system enhances both care quality and patient outcomes.
View Article and Find Full Text PDF
Article Synopsis
  • Volatile chemical products (VCPs) contribute significantly to the presence of volatile organic compounds (VOCs) in urban areas and are important for secondary organic aerosol (SOA) formation.
  • This study focuses on how the evaporation of aerosols from a common room deodorant affects their chemical composition, light absorption, and ability to generate reactive oxygen species (ROS).
  • Results show that aerosol evaporation leads to a concentration of solutes, drastic changes in molecular characteristics, and increased ROS production upon drying, all of which have implications for atmospheric chemistry and climate impact.
View Article and Find Full Text PDF

In light of the pressing need to reduce carbon emissions, the biomass power generation industry has gained significant attention and has increasingly become a crucial focus in China. However, there are still considerable gaps in the historical background, status, and prospects of biomass power generation. Herein, the historical and current status of biomass power generation in China are systematically reviewed, with a particular emphasis on supportive policies, environmental impacts, and future projections.

View Article and Find Full Text PDF
Article Synopsis
  • Indoor air pollution is significant for exposure estimation, especially since people spend most of their time indoors.
  • Field measurements in Kunming City identified daily average PM concentrations as highest in restaurants due to cooking emissions, with levels in public places and households being much lower.
  • The study suggests that indoor PM varies greatly across different environments and recommends targeted strategies to reduce indoor air pollution.
View Article and Find Full Text PDF

Cisplatin remains the most widely used chemotherapeutic agent in cancer treatment; however, its inherent drawbacks have fueled the development of novel metalloanticancer drugs. In this study, two novel Cu(II) complexes (Cu1 and Cu2) were designed and synthesized. Notably, these Cu(II) complexes showed higher cytotoxicity against HL-7402 cells than cisplatin.

View Article and Find Full Text PDF
Article Synopsis
  • Tumor microenvironment (TME) diversity in hepatocellular carcinoma (HCC) affects patient survival and treatment response, presenting challenges in utilizing existing molecular subtypes for clinical applications.
  • Researchers analyzed three single-cell datasets to uncover six cell subclusters linked to patient prognosis and created five transcriptomic subtypes with distinct clinical features, immune profiles, and treatment responses.
  • Findings revealed that certain subtypes responded better to specific treatments, emphasizing the importance of personalized medicine strategies for HCC patients based on their unique TME characteristics.
View Article and Find Full Text PDF

Cellular senescence assumes pivotal roles in various diseases through the secretion of proinflammatory factors. Despite extensive investigations into vascular senescence associated with aging and degenerative diseases, the molecular mechanisms governing microvascular endothelial cell senescence induced by traumatic stress, particularly its involvement in senescence-induced inflammation, remain insufficiently elucidated. In this study, we present a comprehensive demonstration and characterization of microvascular endothelial cell senescence induced by spinal cord injury (SCI).

View Article and Find Full Text PDF

Vascular injury following spinal cord injury (SCI) can significantly exacerbate secondary SCI and result in neurological dysfunction. Strategies targeting angiogenesis have demonstrated potential in enhancing functional recovery post-SCI. In the context of angiogenesis, the CD146 and CD271 subpopulations of mesenchymal stem cells (MSCs) have been recognized for their angiogenic capabilities in tissue repair.

View Article and Find Full Text PDF

The multi-domain protein UHRF1 (ubiquitin-like, containing PHD and RING finger domains, 1) recruits DNMT1 for DNA methylation maintenance during DNA replication. Here, we show that MOF (males absent on the first) acetylates UHRF1 at K670 in the pre-RING linker region, whereas HDAC1 deacetylates UHRF1 at the same site. We also identify that K667 and K668 can also be acetylated by MOF when K670 is mutated.

View Article and Find Full Text PDF

We reported the mitochondrial genome of Ventilago leiocarpa for the first time. Two and one sites lead to the generation of stop and stat codon through editing were verified. Ventilago leiocarpa, a member of the Rhamnaceae family, is frequently utilized in traditional medicine due to the medicinal properties of its roots.

View Article and Find Full Text PDF

Spinal cord injury (SCI) results in neural tissue damage. However, the limited regenerative capacity of adult mammals' axons upon SCI leads to persistent neurological dysfunction. Thus, exploring the pathways that can enhance axon regeneration in injured spinal cord is of great significance.

View Article and Find Full Text PDF

Glycosaminoglycans (GAGs) are important for the occurrence of signaling molecules and maintenance of microenvironment within the extracellular matrix (ECM) in living tissues. GAGs and GAG-based biomaterial approaches have been widely explored to promote in situ tissue regeneration and repair by regulating the wound microenvironment, accelerating re-epithelialization, and controlling ECM remodeling. However, most approaches remain unacceptable for clinical applications.

View Article and Find Full Text PDF

Spinal cord injury (SCI) causes severe axon damage, usually leading to permanent paraparesis, which still lacks effective regenerative therapy. Recent studies have suggested that exosomes derived from neural stem cells (NSCs) may hold promise as attractive candidates for SCI treatment. Epidermal Growth Factor Receptor positive NSC (EGFRNSC) is a subpopulation of endogenous NSCs, showing strong regenerative capability in central nervous system disease.

View Article and Find Full Text PDF