Amphiregulin promotes activated regulatory T cell-suppressive function via the AREG/EGFR pathway in laryngeal squamous cell carcinoma.

Background: Activated regulatory T cells (aTregs) play a vital role in promoting a tumor immunosuppressive microenvironment in laryngeal squamous cell carcinoma (LSCC). However, the regulatory factors that induce the generation of aTregs are not clear. Herein, we investigated the effect of amphiregulin (AREG) on the production of aTregs in the tumor microenvironment of LSCC.

tsRNA modifications: An emerging layer of biological regulation in disease.

Background: Transfer RNA (tRNA)-derived small RNA (tsRNA) represents an important and increasingly valued type of small non-coding RNA (sncRNA). The investigation of tRNA and tsRNA modification crosswalks has not only provided novel insights into the information and functions of tsRNA, but has also expanded the diversity and complexity of the tsRNA biological regulation network.

Aim Of Review: Comparing with other sncRNAs, tsRNA biogenesis show obvious correlation with RNA modifications from mature tRNA and harbor various tRNA modifications.

Preventive and Therapeutic Effects of Crocetin in Rats with Heart Failure.

Gardenia is both a food and medicine plant. It is widely used for cardiovascular protection, and its main bioactive ingredient is crocetin. This study aims to observe the therapeutic effects of crocetin on chronic heart failure in rats induced by various etiologies.

Identifying the pathophysiological traits of obstructive sleep apnea during dexmedetomidine sedation.

Dexmedetomidine (DEX) has been described as a safe sedative in clinical practice, but its effects on the pathophysiological traits of obstructive sleep apnea (OSA) are unclear. We estimated the effects of DEX sedation on the four key pathophysiological traits of OSA (pharyngeal collapsibility, dilator muscle function, arousal threshold, and loop gain) in adult patients with OSA by conducting a secondary analysis of a prospective diagnostic trial. Pathophysiological traits estimated from polysomnography and the respiratory parameters under natural sleep and DEX-induced sleep were compared.

Upfront Surgery Versus Definitive Radiotherapy: Competing Risk Analyses in Early Stage Oropharyngeal Cancer.

Objective: To compare the survival outcomes of early-stage oropharyngeal cancer (OPC) patients treated with upfront surgery versus definitive radiotherapy (RT).

Study Design: Retrospective observational study.

Setting: Publicly available database.

Effect of Bilateral Vocal Fold Microsuturing on Voice Quality Improvement in Patients With Anterior Glottic Webs: A Retrospective Observational Study.

Purpose: This study was performed to introduce a modified procedure involving a combination of bilateral vocal fold mucosal flaps and microsurgical sutures for the management of anterior glottic webs and to study its efficacy in decreasing the recurrence rate and improving voice quality.

Methods: We retrospectively reviewed 102 patients with anterior glottic webs who underwent surgical treatment by a carbon dioxide laser incision with or without microsurgical suturing in our hospital from May 2014 to April 2021. We focused on the reoperation rate and the voice outcomes based on the 30-item Voice Handicap Index.

Exposure-Response Analysis and Mechanism of Ginkgolide B's Neuroprotective Effect in Acute Cerebral Ischemia/Reperfusion Stage in Rat.

Ginkgolide B (GKB) is a well-established neuroprotectant for acute ischemia stroke. However, its cerebral exposure and real-time response remain elusive in acute ischemia/reperfusion stage, and it hinders its usage in therapeutic window of ischemia stroke. Therefore, we investigate the exposure-response relationship of GKB (10 mg/kg, intravenously (i.

Ferroptosis Driver and Suppressor Independently Correlate With M1 and M2 Macrophage Infiltration in Head and Neck Squamous Cell Carcinoma.

Objective: To investigate the role of ferroptosis, an iron-dependent form of non-apoptotic cell death, in the head and neck squamous cell carcinoma (HNSCC) immune microenvironment.

Materials And Methods: A list of ferroptosis-related genes was obtained from the FerrDb database. Gene expression data were acquired from the cancer genome atlas (TCGA) and analyzed using the R language.

IL-21 Is an Accomplice of PD-L1 in the Induction of PD-1-Dependent Treg Generation in Head and Neck Cancer.

Regulatory T cells (Tregs) are immunosuppressive cells involved in antitumor immunity. However, the regulation of Treg generation by inflammation in the tumor microenvironment has not been carefully investigated. Here, we demonstrated that IL-21-polarized inflammation was enriched in the tumor microenvironment in head and neck squamous cell carcinoma (HNSCC) and that IL-21 could promote PD-L1-induced Treg generation in a PD-1-dependent manner.

Comprehensive analysis of ferritin subunits expression and positive correlations with tumor-associated macrophages and T regulatory cells infiltration in most solid tumors.

Ferritin is the most important iron storage form and is known to influence tumor immunity. We previously showed that expression of ferritin light chain (FTL) and ferritin heavy chain (FTH1) subunits is increased in head and neck squamous cell carcinoma (HNSC). Here, we analyzed solid tumor datasets from The Cancer Genome Atlas and Genotype-Tissue Expression databases to investigate correlations between and expressions and (i) patient survival, using univariate, multivariate, Kaplan-Meier and Receiver Operator Characteristic analysis; and (ii) tumor-infiltrating immune cell subsets, using the bioinformatics tools Estimation of Stomal and Immune cells in Malignant Tumor tissues, Microenvironment Cell Population-counter, Tumor Immune Estimation Resource, and Tumor Immunology Miner.

Acute and subacute inhalation toxicity assessment of WS-23 in Sprague-Dawley rats.

2-isopropyl-N,2,3-trimethylbutyramide (WS-23) is a well-known artificial synthesis cooling agent widely used in foods, medicines, and tobaccos. As a commonly cooling agent in e-cigarette liquids, WS-23 has led to concerns about the inhalation toxicity with the prosperous of e-cigarettes in recent years. Thus, the aim of this study is to assess the acute and subacute inhalation toxicity of WS-23 in Sprague-Dawley (SD) rats according to the Organization for Economic Cooperation and Development (OECD) guidelines.

The interval between onset and admission predicts disease progression in COVID-19 patients.

Background: The prognostic role of the interval between disease onset and hospital admission (O-A interval) was undetermined in patients with the coronavirus disease 2019 (COVID-19).

Methods: A total of 205 laboratory-confirmed inpatients admitted to Hankou hospital of Wuhan from January 11 to March 8, 2020 were consecutively included in this retrospective observational study. Demographic data, medical history, laboratory testing results were collected from medical records.

Dexmedetomidine-induced polysomnography as a diagnostic method in obstructive sleep apnea: a reliable alternative method?

Background: Under-diagnosis of obstructive sleep apnea (OSA) is common because of the demanding and time-consuming nature of polysomnography (PSG). Herein, we assessed the utility of a short daytime dexmedetomidine-induced PSG for diagnosis of OSA in adults.

Methods: This was a single-center, prospective, diagnostic trial.

DZNep attenuates allergic airway inflammation in an ovalbumin-induced murine model.

Background: Growing evidence shows that enhancer of zeste homolog 2 (EZH2) plays a role in various physiological functions and cancer pathogenesis. However, its contribution to allergic diseases remains controversial. We sought to investigate the role of EZH2 in the pathogenesis of allergic airway inflammation.

Leptin Promoted IL-17 Production from ILC2s in Allergic Rhinitis.

Background: Interleukin-17 plays important roles in allergic diseases. Several studies proved that leptin promoted Th17 immune responses by inducing RORt transcription. ILC2 is an important member of the early stage of immune response.

[Analysis on new research and development ideas and technical points of traditional Chinese medicine for prevention and treatment of chronic heart failure].

Chronic heart failure(CHF), a serious and end stage of various heart diseases, is a common chronic cardiovascular disease in the 21 st century. Literature data show that the 5-year mortality rate of hospitalized patients with heart failure is as high as 50%. Nowadays, the development of drugs treating heart failure has become a hot spot, meanwhile, traditional Chinese medicine(TCM) has shown the advantages in the treatment of chronic heart failure.

Treatment Principle Based on the Clinical Staging of Pharyngocutaneous Fistula.

Objective: Studies on factors affecting pharyngocutaneous fistulas (PCFs) and PCF repair methods have been widely reported. However, the healing phases of PCF are unclear, and their elucidation could guide clinical treatment.

Methods: Clinical stages of the PCF healing process were identified by a retrospective study of 39 patients with head and neck cancer who developed a PCF.

The cost-effectiveness analysis of drug therapy versus surgery for symptomatic adenoid hypertrophy by a Markov model.

Purpose: Adenoid hypertrophy (AH) is common among young children. Adenoid-based surgery and drug therapy could be applied for symptomatic AH patients, yet the treatment decision is difficult to make due to the diverse cost and efficacy between these two treatments.

Methods: A Markov simulation model was designed to estimate the cost-effectiveness (CE) of the adenoid-based surgery and the drug therapy for symptomatic AH patients.

Ten-Eleven Translocation (TET) Enzymes Modulate the Activation of Dendritic Cells in Allergic Rhinitis.

The prevalence of allergic rhinitis (AR) has increased in recent decades. Accumulating evidence indicates that aberrant DNA demethylation modulated by enzymes of ten-eleven translocation (TET) promotes an imbalanced immune response. This study aimed to explore TETs on the activation of dendritic cells (DCs) in AR.

Epigenetic Modification of Enhancer of Zeste Homolog 2 Modulates the Activation of Dendritic Cells in Allergen Immunotherapy.

Background: Allergen immunotherapy (AIT) is the only etiological and potentially curative therapy for allergic rhinitis (AR).

Objectives: We sought to investigate the role of epigenetic regulator enhancer of zeste homolog 2 (EZH2) in the activation of dendritic cells (DCs) in AIT.

Method: In this study, EZH2 expression in circulating myeloid DCs (mDCs) and plasmacytoid DCs (pDCs) were evaluated using flow cytometry.

Excessive periostin expression and Th2 response in patients with nasal polyps: association with asthma.

Background: Periostin has been shown to be upregulated in chronic rhinosinusitis with nasal polyps (CRSwNP), especially in the CRSwNP patients with asthma. However, the underlying mechanism that how periostin contributes to the polyp genesis remains unclear.

Methods: In this study, we collected 63 CRSwNP patients' nasal polyps (NPs) and 25 control subjects' uncinated tissues.

CD73 expression on effector T cells sustained by TGF-β facilitates tumor resistance to anti-4-1BB/CD137 therapy.

Agonist antibodies (Ab) directed against costimulatory molecules on the surface of antigen-primed T cells are in various stages of pre-clinical and clinical trials, albeit with limited therapeutic benefit as single agents. The underlying mechanisms of action remain incompletely understood. Here, we demonstrate an inhibitory role of ecto-enzyme CD73 for agonistic anti-4-1BB/CD137 Ab therapy.

Clinical Characteristics and Endoscopic Endonasal Removal of Foreign Bodies within Sinuses, Orbit, and Skull Base.

Background: Foreign bodies within the sinuses, orbit, and skull base (FBSOS) are rare; hence, diagnosis and management guidelines are lacking. Endoscopic sinus surgery (ESS) removal is preferred because of the less invasiveness and minimal morbidity. This study was designed to summarize clinical experience with ESS management of FBSOS.

Increased Expression of miR-146a in Children With Allergic Rhinitis After Allergen-Specific Immunotherapy.

Purpose: MicroRNAs (miRs) were recently recognized to be important for immune cell differentiation and immune regulation. However, whether miRs were involved in allergen-specific immunotherapy (SIT) remains largely unknown. This study sought to examine changes in miR-146a and T regulatory cells in children with persistent allergic rhinitis (AR) after 3 months of subcutaneous immunotherapy (SCIT) and sublingual immunotherapy (SLIT).