J Reconstr Microsurg
December 2024
Background:  Clinically, there has been increasing employment of the lateral femoral condyle flap. The objective of this study was to explore the vascular anatomy of the lateral femoral condyle in pigs and to explore the feasibility of using pigs as an animal model of the lateral femoral condyle flap.
Methods:  A total of 20 fresh cadaveric hindlimbs of 4-week-old hybrid pigs were used in this study.
Generally, sulfur poisoning is considered to be one of the main factors contributing to the deactivation of selective catalytic reduction of NO by CO (CO-SCR) catalysts, while the promotional effect of SO on NO reduction over Ir/SiO is observed which is an interesting scientific phenomenon. After the introduction of 20 ppm SO, NO conversion increased from ∼ 40 % to ∼ 90 % at 275 °C, and N selectivity increased from ∼ 80 % to 100 % at 200 ∼ 300 °C. Furthermore, the promoting effect could remain unchanged after 24 h of continuous reaction.
View Article and Find Full Text PDFRepairing large-area soft tissue defects caused by traumas is a major surgical challenge. Developing multifunctional scaffolds with suitable scalability and favorable cellular response is crucial for soft tissue regeneration. In this study, we developed an orthogonally woven three-dimensional (3D) nanofiber scaffold combining electrospinning, weaving, and modified gas-foaming technology.
View Article and Find Full Text PDFSystemic sclerosis (SSc) poses a significant challenge in autoimmunology, characterized by the development of debilitating fibrosis of skin and internal organs. The pivotal role of dysregulated T cells, notably the skewed polarization toward Th2 cells, has been implicated in the vascular damage and progressive fibrosis observed in SSc. In this study, we explored the underlying mechanisms by which cannabinoid receptor 2 (CB2) highly selective agonist HU-308 restores the imbalance of T cells to alleviate SSc.
View Article and Find Full Text PDFCurrently, the typical combination therapy of programmed death ligand-1 (PD-L1) antibodies with radiotherapy (RT) still exhibits impaired immunogenic antitumor response in clinical due to lessened DNA damage and acquired immune tolerance via the upregulation of some other immune checkpoint inhibitors. Apart from this, such combination therapy may raise the occurrence rate of radiation-induced lung fibrosis (RIPF) due to enhanced systemic inflammation, leading to the ultimate death of cancer patients (average survival time of about 3 years). Therefore, it is newly revealed that mitochondria energy metabolism regulation can be used as a novel effective PD-L1 and transforming growth factor-β (TGF-β) dual-downregulation method.
View Article and Find Full Text PDFCurrently, certain cancer patients exhibit resistance to radiotherapy due to reduced DNA damage under hypoxic conditions and acquired immune tolerance triggered by transforming growth factor-β1 (TGF-β1) and membrane-localized programmed death ligand-1 (PD-L1). Meanwhile, cytoplasm-distributed PD-L1 induces radiotherapy resistance through accelerating DNA damage repair (DDR). However, the disability of clinically used PD-L1 antibodies in inhibiting cytoplasm-distributed PD-L1 limits their effectiveness.
View Article and Find Full Text PDFThe Editors of Medical Science Monitor wish to inform you that the above manuscript has been retracted from publication due to concerns with the credibility and originality of the study, the manuscript content, and the Figure images. Reference: Jun Xia, Ni Xie, Yuning Feng, Anyu Yin, Pinni Liu, Ruming Zhou, Fan Lin, Guozhao Teng, Yi Lei. Brain Susceptibility Weighted Imaging Signal Changes in Acute Hemorrhagic Anemia: An Experimental Study Using a Rabbit Model.
View Article and Find Full Text PDFFree Radic Biol Med
November 2023
Sepsis often causes organ dysfunction and is manifested in increased endothelial cell permeability in blood vessels. Early-stage inflammation is accompanied by metabolic changes, but it is unclear how the metabolic alterations in the endothelial cells following lipopolysaccharide (LPS) stimulation affect endothelial cell function. In this study, the effects of 1 μg/ml of LPS on the metabolism of human umbilical vein endothelial cells (HUVECs) were investigated, and the metabolic changes after LPS stimulation were explained from the perspective of mRNA expression, chromatin openness and metabolic flux.
View Article and Find Full Text PDFBackground: Cardiovascular disease, one of the most common types of disease in clinical practice today, carries a very high risk of disability and death. This research aims to examine genome-wide changes in injured human dermal microvascular endothelial cells (HDMECs) using the Ribonucleic Acid sequencing (RNA-Seq) technique, and to search for key genes influencing N6-methyladenosine (m6A) methylation, thus gaining new insights into future clinical diagnosis and treatment of cardiovascular diseases (CVDs) and laying a foundation for follow-up research.
Methods: Impaired HDMECs (injury group), established by endotoxin intervention, were analyzed by RNA-Seq for differentially expressed genes (DEGs) relative to normal HDMECs (control group).
One of the key targets of the inflammatory response in acute lung injury (ALI) is the human pulmonary micro-vascular endothelial cells (HPMVECs). Owing to its role in the activation of endothelial cells (ECs), CD40L figures prominently in the pathogenesis of ALI. Increasing evidences have showed that CD40L mediates inflammatory effects on ECs, at least in part, by triggering NF-κB-dependent gene expression.
View Article and Find Full Text PDFA variety of surgical techniques exist for deep burn wounds in the shin at low temperature reconstruction after appropriate debridement, but limited high-quality data exist to inform treatment strategies. Using multi-institutional data, the authors evaluated the length of healing time, cost, and outcomes of three common surgical reconstructive modalities. All subjects with deep burn wounds in the shin caused by low temperature who received direct suture repair, skin grafting, or local flap reconstruction were retrospectively reviewed (from 2015.
View Article and Find Full Text PDFGlycyrrhiza polysaccharide extract 1 (GPS-1) is a bioactive component isolated from Glycyrrhiza uralensis, also known as Chinese licorice. It appears to be pharmacologically active as an antibacterial, antiviral, and anti-tumor agent. GPS-1 has also been shown to buffer liver health and regulate the immune system.
View Article and Find Full Text PDFPurpose: To investigate the expression profile of systemic RNA interference deficient-1 transmembrane family member 1 (SIDT1) in patients with non-small cell lung cancer (NSCLC) and assess its prognostic value and immune infiltration.
Materials And Methods: A tissue microarray (TMA) was purchased containing 60 paired NSCLC tissues and matched para-tumor tissues, and another TMA was constructed comprising 140 NSCLC tissues. Then, immunohistochemical staining and scoring were performed.
Int J Low Extrem Wounds
September 2021
Negative-pressure wound therapy is widely used in burn populations. Traditionally, negative-pressure devices use persistent vacuum suction, requiring a longer hospital stay. In this study, we applied a novel negative-pressure wound dressing for burn wounds, which eliminates the hospital stay.
View Article and Find Full Text PDFAlthough many researches have explored the prognostic factors associated with length of hospital stay (LOS) of adult burn patients, fewer reports concerning pediatric burn patients have been conducted. The present study employed pediatric burn data to identify factors related to LOS and developed a novel model to assess the possibility of requiring surgery. A total of 750 children admitted for burns met the criteria for enrollment.
View Article and Find Full Text PDF. Under septic conditions, LPS induced lung vascular endothelial cell (EC) injury, and the release of inflammatory mediator launches and aggravates acute lung injury (ALI). There are no effective therapeutic options for ALI.
View Article and Find Full Text PDFUnder septic conditions, Lipopolysaccharide (LPS)-induced apoptosis of lung vascular endothelial cells (ECs) triggers and aggravates acute lung injury (ALI), which so far has no effective therapeutic options. Genistein-3'-sodium sulphonate (GSS) is a derivative of native soy isoflavone, which has neuro-protective effects through its anti-apoptotic property. However, whether GSS protects against sepsis-induced lung vascular endothelial cell apoptosis and ALI has not been determined.
View Article and Find Full Text PDFSuperficial temporal artery-middle cerebral artery anastomosis is generally considered as an effective method in improving damage associated with intracerebral occlusions in moyamoya disease. Hemodynamic changes caused by revascularization are the cause of many postoperative complications. Of the 186 consecutive surgeries for moyamoya disease at our hospital from 2015, we herein presented one case of adult-onset moyamoya disease that manifested symptomatic local cerebral edema and local hypoperfusion caused by the 'watershed shift'.
View Article and Find Full Text PDFAcute lung injury (ALI) is characterized by protein-rich pulmonary edema, critical hypoxemia, and influx of pro-inflammatory cytokines and cells. There are currently no effective pharmacon therapies in clinical practice. Syndecan-1 in endothelial cells has potential to protect barrier function of endothelium and suppress inflammation response.
View Article and Find Full Text PDFInflammation is characterized by early influx of polymorphonuclear neutrophils (PMNs), followed by a second wave of monocyte recruitment. PMNs mediate monocyte recruitment via their release of heparin binding protein (HBP), which activates CCR2 (CC-chemokine receptor 2) on monocytes. However, the pathways for such signal transmission remain unknown.
View Article and Find Full Text PDFEthnopharmacological Relevance: The hepatotoxicity of Tripterygium wilfordii Hook. f. (TW), due to the presence of triptolide (TP), limits its therapeutic potential.
View Article and Find Full Text PDFTo evaluate the effectiveness of intraoperative neuromonitoring (IONM) during arteriovenous malformation (AVM) surgery, we retrospectively analyzed neurologic dysfunction in patients who underwent AVM surgery with (IONM group) and without IONM (non-IONM group). The sensitivity and specificity of short-term neurologic dysfunction were calculated in the IONM group. IONM parameters were obtained in all patients.
View Article and Find Full Text PDFThe bacterial endotoxin or lipopolysaccharide (LPS) leads to the extensive vascular endothelial cells (EC) injury under septic conditions. Guanine nucleotide exchange factor-H1 (GEF-H1)/ROCK signaling not only involved in LPS-induced overexpression of pro-inflammatory mediator in ECs but also implicated in LPS-induced endothelial hyper-permeability. However, the mechanisms behind LPS-induced GEF-H1/ROCK signaling activation in the progress of EC injury remain incompletely understood.
View Article and Find Full Text PDFLong non-coding RNAs (lncRNAs) are proved as important regulators in many diseases, including multiple cancers. HOXA11antisense RNA (HOXA11-AS) is a novel identified lncRNA associated with cancer progression. However, the role of HOXA11-AS in glioma remains poorly understood and needs to be elucidated.
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