32 results match your criteria: "Southern Medical University Guangzhou Guangdong China.[Affiliation]"

Article Synopsis
  • After RFA treatment for liver cancer, there's a notable increase in the expression of /xCT and the number of dendritic cells (DCs) in the tumor microenvironment (TME).
  • /xCT is associated with poor prognosis in liver cancer and is primarily found in DCs within the TME.
  • Combining xCT targeting in DCs with RFA treatment boosts anti-tumor immune responses, reduces tumor growth, and suggests a potential strategy for better treatment outcomes in liver cancer.
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Infected burn wounds are characterized by persistent drug-resistant bacterial infection coupled with an inflammatory response, impeding the wound-healing process. In this study, an intelligent nanoparticle system (CCM+TTD@ZIF-8 NPs) was prepared using curcumin (CCM), an aggregation-induced emission luminogens (TTD), and ZIF-8 for infection-induced wound healing. The CCM+TTD@ZIF-8 NPs showed multiple functions, including bacteria targeting, fluorescence imaging and pH response-guided photodynamic therapy (PDT), and anti-inflammatory.

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Radiofrequency ablation (RFA), a form of thermal ablation, employs localized heat to induce protein denaturation in tissue cells, resulting in cell death. It has emerged as a viable treatment option for patients who are ineligible for surgery in various diseases, particularly liver cancer and other tumor-related conditions. In addition to directly eliminating tumor cells, RFA also induces alterations in the infiltrating cells within the tumor microenvironment (TME), which can significantly impact treatment outcomes.

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Background: Multiple target-organ damages (TODs) in the same patient are common and further increase the risk of cardiovascular disease. However, the relationship between ambulatory central systolic blood pressure (SBP) and multiple TODs has yet to be explored.

Methods And Results: MobilO-Graph PWA was used to monitor the participants' ambulatory blood pressure, and the presence of left ventricular hypertrophy, carotid hypertrophy, and kidney injury were used to define TOD.

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Renal cancer is a highlyheterogeneous malignancy characterized by rising global incidence and mortalityrates. The complex interplay and dysregulation of multiple signaling pathways,including von Hippel-Lindau ()/hypoxia-inducible factor (), phosphoinositide 3-kinase ()/protein kinase B ()/mammalian target of rapamycin (), Hippo-yes-associated protein (), Wnt/ß-catenin, cyclic adenosine monophosphate (), and hepatocyte growth factor ()/, contribute to theinitiation and progression of renal cancer. Although surgical resection is thestandard treatment for localized renal cancer, recurrence and metastasiscontinue to pose significant challenges.

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Development of a genome atlas for discriminating benign, preinvasive, and invasive lung nodules.

MedComm (2020)

August 2024

Department of Thoracic Surgery and Oncology the First Affiliated Hospital of Guangzhou Medical University, Guangzhou Institute of Respiratory Health, State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease Guangzhou Guangdong China.

To tackle misdiagnosis in lung cancer screening with low-dose computed tomography (LDCT), we aimed to compile a genome atlas for differentiating benign, preinvasive, and invasive lung nodules and characterize their molecular pathogenesis. We collected 432 lung nodule tissue samples from Chinese patients, spanning benign, atypical adenomatous hyperplasia (AAH), adenocarcinoma in situ (AIS), minimally invasive adenocarcinoma (MIA), and invasive adenocarcinoma (IA). We performed comprehensive sequencing, examining somatic variants, gene expressions, and methylation levels.

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Article Synopsis
  • The study reviewed how CTLA-4 inhibitors, while effective for treating malignancies, are linked to increased cardiovascular adverse events in patients.
  • An analysis of 20 clinical trials revealed that these inhibitors significantly raised the incidence of all-grade cardiovascular issues, especially when used alone, leading to notably higher rates of severe cardiovascular complications.
  • Despite the added risks, combining CTLA-4 inhibitors with other treatments like chemotherapy or PD-1/PD-L1 inhibitors did not further increase cardiovascular toxicity compared to those not receiving CTLA-4 inhibitors.
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Numerous clinical studies speculated the association between multiple myeloma (MM) and inflammatory diseases; however, there is limited validation of these claims via establishing a causal relationship and revealing the underlying mechanism. This exploratory study employed bidirectional Mendelian randomization (MR) analysis to investigate the causal relationships between MM and inflammatory diseases, including atherosclerosis, asthma, ankylosing spondylitis, Alzheimer's disease (AD), Parkinson's disease (PD), sarcoidosis, inflammatory bowel disease, nonalcoholic fatty liver disease, type II diabetes, and schizophrenia (SZ). Transcriptomic and genome-wide Bayesian colocalization analyses were further applied to reveal the underlying mechanism.

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The tumor immune microenvironment (TIME) is closely associated with tumor formation, particularly linked to the human papillomavirus (HPV), and regulates tumor initiation, proliferation, infiltration, and metastasis. With the rise of immunotherapy, an increasing amount of sample data used for TIME exploration is available in databases. However, no currently available web tool enables a comprehensive exploration of the TIME of HPV-associated cancers by leveraging these data.

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Article Synopsis
  • Cerebral-cardiac syndrome (CCS) refers to cardiac damage caused by ischemic stroke, linked to macrophages, but their varying roles are not well understood.
  • A mouse model of ischemic stroke revealed that heart damage was marked by significant heart dysfunction and increased infiltration of proinflammatory monocyte-derived macrophages.
  • The study indicates that activated cardiac sympathetic nerves promote macrophage infiltration in the heart, which may contribute to the cardiac dysfunction seen in CCS, suggesting a possible mechanism linking these elements.
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Background: COVID-19 has caused severe morbidity and mortality worldwide. After the end of the dynamic zero-COVID policy in China in December, 2022, concerns regarding reinfection were raised while little was known due to the lack of surveillance data in this country.

Aims: This study reviews the probability, risk factors, and severity of severe acute respiratory syndrome coronavirus 2 Omicron variant reinfection, as well as the interval between infections, risk of onward transmission by reinfected cases, and the role of booster vaccination against reinfection.

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Refractory diabetic wounds are associated with high incidence, mortality, and recurrence rates and are a devastating and rapidly growing clinical problem. However, treating these wounds is difficult owing to uncontrolled inflammatory microenvironments and defective angiogenesis in the affected areas, with no established effective treatment to the best of our knowledge. Herein, we optimized a dual functional therapeutic agent based on the assembly of LL-37 peptides and diblock copolymer poly(ethylene glycol)-poly(propylene sulfide) (PEG-PPS).

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Background: Small-cell lung cancer (SCLC) is characterized by its high malignancy and is associated with a poor prognosis. In the early stages of the disease, platinum-based chemotherapy is the recommended first-line treatment and has demonstrated efficacy. However, SCLC is prone to recurrence and is generally resistant to chemotherapy in its later stages.

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Nuclear receptor coactivator 4 (NCOA4) protein is a selective cargo receptor that plays a crucial role in ferritinophagy by targeting and delivering the ferritin iron storage protein to lysosomes for degradation and releasing iron. TRIM7 overexpression inhibits ferroptosis in glioblastoma cells by ubiquitinating NCOA4 protein.

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Sepsis is an often-deadly complication of infection that can lead to multiple organ failure. Previous studies have demonstrated that autophagy has a protective effect on liver injury in sepsis. Here, we report a novel long noncoding RNA (lncRNA), named lipopolysaccharide (LPS)-induced liver autophagy regulator (), which was highly induced in the liver tissues of endotoxemic mice.

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Sepsis is a difficult-to-treat systemic condition in which liver dysfunction acts as both regulator and target. However, the dynamic response of diverse intrahepatic cells to sepsis remains poorly characterized. Capsaicin (CAP), a multifunctional chemical derived from , has recently been shown to potentially possess anti-inflammatory effects, which is also one of the main approaches for drug discovery against sepsis.

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There are five fibroblast growth factor receptors (FGFRs), namely, FGFR1-FGFR5. When FGFR binds to its ligand, namely, fibroblast growth factor (FGF), it dimerizes and autophosphorylates, thereby activating several key downstream pathways that play an important role in normal physiology, such as the Ras/Raf/mitogen-activated protein kinase kinase/extracellular signal-regulated kinase, phosphoinositide 3-kinase (PI3K)/AKT, phospholipase C gamma/diacylglycerol/protein kinase c, and signal transducer and activator of transcription pathways. Furthermore, as an oncogene, FGFR genetic alterations were found in 7.

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Mounting evidence has demonstrated the considerable regulatory effects of long noncoding RNAs (lncRNAs) in the tumorigenesis and progression of various carcinomas. LncRNA Semaphorin 3B (SEMA3B) antisense RNA 1 () has been found to be dysregulated in a few carcinomas recently. However, its potential function and mechanism in colorectal carcinoma (CRC) have not yet been examined.

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Acute liver failure (ALF) is a life-threatening condition. Cell-based and cell-free-based therapies have proven to be effective in treating ALF; however, their clinical application is limited by cell tumorigenicity and extracellular vesicle (EV) isolation in large doses. Here, we explored the effectiveness and mechanism of umbilical cord mesenchymal stem cells (hUCMSCs)-based bioartificial liver (hUCMSC-BAL), which is a simple and efficient strategy for ALF.

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Background The associations of oral contraceptive (OC) use with cardiovascular disease (CVD) and all-cause death remains unclear. We aimed to determine the associations of OC use with incident CVD and all-cause death. Methods and Results This cohort study included 161 017 women who had no CVD at baseline and reported their OC use.

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Echocardiography, a simple and noninvasive tool, is the first choice for screening pulmonary hypertension (PH). However, accurate assessment of PH, incorporating both the pulmonary artery pressures and additional signs for PH remained unsatisfied. Thus, this study aimed to develop a machine learning (ML) model that can automatically evaluate the probability of PH.

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CD80 is an important co-stimulatory molecule that participates in the immune response. Soluble CD80 can induce T cell activation and overcome PDL1-mediated immune suppression. In this study, we aimed to construct recombinant for oral delivery of the soluble CD80 (hsCD80) protein or the fusion protein containing the cholera toxin B subunit (CTB) and hsCD80 (CTB-hsCD80) under the control of the nisin-inducible expression system.

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Article Synopsis
  • The study investigates how macrophage polarization affects pain and recovery in patients after surgery for lumbar disc herniation (LDH).
  • Researchers analyzed tissue samples from 117 patients, evaluating pain levels using visual analog scales and disability indices before and after surgery.
  • Results indicated that specific macrophage markers (CD68 and CCR7) were linked to lower pain scores one week post-surgery, suggesting pro-inflammatory M1 macrophages may help reduce chronic pain after such operations.
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We report a case of life-threatening airway obstruction due to retropharyngeal-cervicomediastinal hematomas following transjugular intrahepatic portosystemic shunt or acute variceal bleeding in cirrhosis. Even though this is a rare complication, clinicians should maintain a high index of suspicion and evaluate and treat it promptly to prevent a fatal outcome.

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Cartilage regeneration after injury is still a great challenge in clinics, which suffers from its avascularity and poor proliferative ability. Herein we designed a novel biocompatible cellulose nanocrystal/GelMA (gelatin-methacrylate anhydride)/HAMA (hyaluronic acid-methacrylate anhydride)-blended hydrogel scaffold system, loaded with synthetic melanin nanoparticles (SMNP) and a bioactive drug kartogenin (KGN) for theranostic purpose. We found that the SMNP-KGN/Gel showed favorable mechanical property, thermal stability, and distinct magnetic resonance imaging (MRI) contrast enhancement.

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