Dysregulated lipid metabolism and intervertebral disc degeneration: the important role of ox-LDL/LOX-1 in endplate chondrocyte senescence and calcification.

Background: Lipid metabolism disorders are associated with degeneration of multiple tissues and organs, but the mechanism of crosstalk between lipid metabolism disorder and intervertebral disc degeneration (IDD) has not been fully elucidated. In this study we aim to investigate the regulatory mechanism of abnormal signal of lipid metabolism disorder on intervertebral disc endplate chondrocyte (EPC) senescence and calcification.

Methods: Human intervertebral disc cartilage endplate tissue, cell model and rat hyperlipemia model were performed in this study.

Influence of Hydroxyl Groups on the Oxidative Reaction Characteristics of Active Groups in Lignite at Room Temperature.

In this paper, through the Fourier infrared spectrum analysis of the Inner Mongolia Hulunbeier Yannan coal mine lignite sample, phenyl and active groups, methoxy (-OCH) and methylene (-CH-), were taken as the research objects, and a simple small molecule model of hydroxyl (-OH) at the ortho, meta, and para positions of active groups was constructed. The structural optimization and simulation calculation of simple small molecules were carried out by Gaussview 6.0.

The effect of perioperative sequential application of multiple doses of tranexamic acid on postoperative blood loss after PLIF: a prospective randomized controlled trial.

Background: Tranexamic acid (TXA) has been utilized in spinal surgery to effectively reduce intraoperative blood loss (IBL) and allogeneic blood transfusion rates. However, the traditional TXA regimen might last the entire duration of hyperfibrinolysis caused by surgical trauma, resulting in its limited ability to reduce postoperative blood loss (PBL). Therefore, the aim of this study was to investigate the effectiveness of perioperative sequential administration of multiple doses of TXA in reducing PBL in patients who underwent posterior lumbar interbody fusion (PLIF).

The effect of sequential perioperative intravenous tranexamic acid in reducing postoperative blood loss and hidden blood loss after posterior lumbar interbody fusion: a randomized controlled trial.

Background: Tranexamic acid (TXA) has previously been shown to be effective in reducing intraoperative blood loss (IBL) and transfusion requirements in spine surgery. A conventional TXA regimen is a simple preoperative or intraoperative administration. However, the hyperfibrinolysis caused by surgical trauma lasts at least 24 h, and a single dose of TXA cannot cover the whole process of hyperfibrinolysis.

Effect of recombinant human acidic fibroblast growth factor on nasal mucosal healing after endoscopic sinus surgery.

Background: Postoperative nasal treatment is an important factor affecting the outcomes of endoscopic sinus surgery (ESS) in patients with chronic rhinosinusitis (CRS). This study aimed to determine the effect of recombinant human acidic fibroblast growth factor (rh-aFGF) on nasal mucosal healing after ESS.

Methods: This study is a prospective, single-blind, and randomized controlled clinical study.

UHRF1-induced connexin26 methylation is involved in hearing damage triggered by intermittent hypoxia in neonatal rats.

Ubiquitin-like with plant homeodomain and ring finger domains 1 (UHRF1) promotes the maintenance of established patterns of DNA methylation in mammalian cells. Extensive methylation of connexin26 (COX26) during hearing impairment has been demonstrated. The present study aims to determine whether UHRF1 can induce the methylation of COX26 in cochlea damaged by intermittent hypoxia (IH).

Analysis of Serum Inflammatory Markers in Infants Under 6 Months of Age with Non-Syndromic Moderate and Severe Hearing Loss Associated with GJB2 Gene Mutations.

BACKGROUND The GJB2 gene is reported to be the main hereditary factor responsible for non-syndromic hearing impairment in infants. Several kinds of hearing loss have been linked to elevated inflammatory markers. This study aimed to evaluate serum levels of IL-2, IL-4, IL-6, IL-10, IL-17, alpha-TNF, and γ-IFN and the severity of hearing loss.

The SIRT1 activator SRT2104 promotes BMP9-induced osteogenic and angiogenic differentiation in mesenchymal stem cells.

Bone defects resulting from trauma, bone tumors, infections and skeletal abnormalities are a common osteoporotic condition with respect to clinical treatment. Of the known bone morphogenetic proteins (BMPs), BMP9 has the strongest osteogenic differentiation potential, which could be beneficial in the construction of tissue-engineered bone. Silent mating type information regulator 2 homolog-1 (SIRT1) is a highly conserved nicotinamide adenine dinucleotide-dependent deacetylase that deacetylates and modulates histone or non-histone substrates.

SIRT1 alleviates IL-1β induced nucleus pulposus cells pyroptosis via mitophagy in intervertebral disc degeneration.

Inflammatory stress of nucleus pulposus cells (NPCs) plays an important role in the pathogenesis of intervertebral disc degeneration (IVDD). Pyroptosis and NLRP3 inflammasome activation have been reported aggravating IVDD. SIRT1 is essential for mammalian cell survival and longevity by participating in various cellular processes.

Predictors of residual dizziness in patients with benign paroxysmal positional vertigo after successful repositioning: A multi-center prospective cohort study.

Background: While patients with benign paroxysmal positional vertigo (BPPV) commonly develop residual dizziness (RD) after successful repositioning, the factors predictive of RD remain controversial.

Objective: To identify factors predictive of RD onset in patients with BPPV following successful repositioning.

Methods: This multi-center prospective cohort study enrolled 243 patients with idiopathic BPPV.

Recent advances in the implant-based drug delivery in otorhinolaryngology.

The surgical implant is an interdisciplinary therapeutic modality that offers unique advantages in the daily practice of otorhinolaryngology. Some well-known examples include cochlear implants, bone-anchored hearing aids, sinus stents, and tracheostomy tubes. Neuroprotective, osteogenic, anti-inflammatory, and antimicrobial effects are among their established or pursued functions.

Prognostic value of elevated KDM5B expression in patients with laryngeal squamous cell carcinoma.

Previous studies confirmed that KDM5B expression is dysregulated in most human tumors. However, KDM5B expression in human laryngeal squamous cell carcinoma (HLSCC) has not been reported. In this paper, the relationship between KDM5B expression and clinical features of HLSCC is clarified, and its prognostic value in HLSCC patients is evaluated.

Novel TRRAP mutation causes autosomal dominant non-syndromic hearing loss.

Hereditary non-syndromic hearing loss is the most common inherited sensory defect in humans. More than 40 genes have been identified as causative genes for autosomal dominant non-syndromic hearing loss (ADNSHL), but there are many other candidate genes that remain to be discovered. We aimed to identify the causative gene mutation for post-lingual progressive ADNSHL in a Chinese family.

Mutations in TOP2B cause autosomal-dominant hereditary hearing loss via inhibition of the PI3K-Akt signalling pathway.

Hereditary hearing impairment is a clinically and genetically heterogeneous disease. Whole-exome sequencing was performed on seven affected and six unaffected members in a large Chinese family with autosomal-dominant nonsyndromic hearing loss. The pathogenic variant of the gene encoding human topoisomerase IIβ TOP2B (c.

Inhibitory effect of simvastatin in nasopharyngeal carcinoma cells.

Nasopharyngeal carcinoma (NPC) is one of the most common malignant head and neck cancers in southern China. Although the local and regional control of NPC has been considerably improved, patients with advanced disease still suffer from poor prognosis. Statins inhibit the mevalonate pathway and play antiproliferative and proapoptotic roles in a number of cancer cells.

Comparative study of nasal septal retainer and nasal packing in patients undergoing septoplasty.

Purpose: Nasal packing is frequently used after septoplasty and some complications caused by nasal packing are unavoidable. A nasal septal retainer has recently been developed. We evaluated the safety and clinical efficacy of the retainer in septoplasty, and the subjective symptoms of patients with the retainer were compared with Merocel nasal packing.

Risk factors for upper adjacent segment degeneration after multi-level posterior lumbar spinal fusion surgery.

Background: Posterior lumbar spinal fusion has been widely used in degenerative lumbar stenosis, but adjacent segment degeneration (ASD) was common. Researchers have found many risk factors for ASD after one or two levels of surgery, but few clinical studies focused on multi-level surgery. The purpose of this study was to clarify risk factors for upper ASD after multi-level posterior lumbar spinal fusion.

Efficacy of combination therapy in adolescent and adult patients with total-deafness sudden sensorineural hearing loss.

Background: Combination therapy is the first-line option for total-deafness sudden sensorineural hearing loss (SSNHL). Age may act as a crucial prognostic factor.

Objective: The aim of this study was to compare efficacy of combination therapy between adolescent and adult patients with total-deafness SSNHL.

Identification of ANLN as a new likely pathogenic gene of branchio-otic syndrome in a three-generation Chinese family.

Background: Branchio-oto-renal (BOR) syndrome is one of the most common autosomal dominant hearing loss syndromes and features clinical and genetic heterogeneity. When there is no renal deformity, this disease can also be called branchio-otic (BO) syndrome. Though many genes have been reported, there are still many BO syndrome-related genes to be identified.

Beneficial effects of hydrogen gas inhalation on a murine model of allergic rhinitis.

Allergic rhinitis (AR) is a common chronic inflammatory condition. It has been previously indicated that oxidative stress may contribute to allergic inflammation, including AR. Although molecular hydrogen (H), an antioxidative agent, has been effective in treatment of numerous oxidative stress-associated diseases, the effect of inhalation of a high concentration of H on AR remains unknown.

Comparison of intratympanic dexamethasone therapy and hyperbaric oxygen therapy for the salvage treatment of refractory high-frequency sudden sensorineural hearing loss.

Objective: This study aimed to compare the efficacy of intratympanic dexamethasone (ITD) therapy and hyperbaric oxygen(HBO) therapy for the salvage treatment of patients with high-frequency sudden sensorineural hearing loss (SSNHL) after the failure of conventional therapy.

Materials And Methods: 104 refractory high-frequency SSNHL patients were enrolled in our study. Among them, 31 received ITD alone (ITD group), 32 received HBO alone (HBO group) and 41 received no salvage therapies (control group).

New role of LRP5, associated with nonsyndromic autosomal-recessive hereditary hearing loss.

Human hearing loss is a common neurosensory disorder about which many basic research and clinically relevant questions are unresolved. At least 50% of hearing loss are due to a genetic etiology. Although hundreds of genes have been reported, there are still hundreds of related deafness genes to be found.

Peroxisome proliferator-activated receptor γ agonist suppresses mast cell maturation and induces apoptosis.

Peroxisome proliferator-activated receptor gamma (PPAR γ), is important in the immunoregulation of the allergic response. Mast cells are the most important inflammatory cells in immediate hypersensitivity and allergic diseases. However, there is limited information regarding the effects of PPAR γ on mast cell maturation.