Auditory Brainstem Response (ABR) Recording of Simultaneous Electric-Acoustic Stimulation between Round Window Membrane and Basal Part of Cochlear Bone in guinea Pigs.

Hypothesis: Extracochlear electric-acoustic stimulation (EAS) between the round window membrane and the basal part of the cochlear bone exhibits distinct auditory brainstem response (ABR) characteristics.

Background: The use of EAS in individuals with residual hearing is becoming increasingly common in clinical settings. Ongoing research has explored the characteristics of EAS-induced responses in hearing cochleae.

Structured Routine Use of Styletubation for Oro-Tracheal Intubation in Obese Patients Undergoing Bariatric Surgeries-A Case Series Report.

The aim of this case series report is to provide a new topical view of styletubation (video intubating stylet technique) in obese patients undergoing bariatric surgeries. In contrast to various conventional direct laryngoscopes (DLs), videolaryngoscopes (VLs) have been applied in such obese populations with potentially difficult airway complications. The safety and effectiveness of VLs have been repeatedly studied, and the superiority of VLs has then been observed in and advocated for routine use.

Effects of 16 weeks of plyometric training on knee biomechanics during the landing phase in athletes.

This study investigated the effects of plyometric training on lower-limb muscle strength and knee biomechanical characteristics during the landing phase. Twenty-four male subjects were recruited for this study with a randomised controlled design. They were randomly divided into a plyometric training group and a traditional training group and underwent training for 16 weeks.

The effect of early weight-bearing and later weight-bearing rehabilitation interventions on outcomes after ankle fracture surgery: A systematic review and meta-analysis of randomised controlled trials.

Objective: This systematic review aimed to analyse the effect of early weight bearing versus late weight bearing on rehabilitation outcomes after ankle fractures, which primarily include ankle function scores, time to return to work/daily life and complication rates.

Methods: The China National Knowledge Infrastructure, Wanfang Data Knowledge Service Platform, China Science and Technology Journal, Web of Science, PubMed, Embase and Cochrane Library databases were searched. The focus was on identifying randomised controlled trials centred on early weight-bearing interventions for post-operative ankle fracture rehabilitation.

Regio- and Chemoselective Double Allylic Substitution of Alkenyl -Diols.

Double allylic substitution is an attractive approach to building molecular complexity from simple starting materials by creating two new bonds in one pot. However, this type of reaction has been doomed by chemoselectivity and regioselectivity issues. In this letter, we describe a new approach to introduce two new C-C, C-N, C-O, or C-S bonds in a chemo- and regioselective fashion.

Toxicity of polyvinyl chloride microplastics on Brassica rapa.

Microplastics (MPs) can pose high risk to living organisms due to their very small sizes. This study selected polyvinyl chloride MPs (PVC-MPs) which experienced up to 1000 h UV light radiation to investigate the influence of PVC-MPs on Brassica rapa growth. The outcomes showed the presence of PVC-MPs inhibited the plants' growth.

Occurrence and risk associated with urban road-deposited microplastics.

An in-depth understanding of urban road-deposited MPs is important for the accurate prediction of the risk posed by MPs in different exposure scenarios. This study provides new insights into the intrinsic/extrinsic factors in terms of the variability of concentration and species in urban road-deposited MPs. The study results confirmed that a considerable abundance of road-deposited MPs can be identified with the average concentration ranging from 0.

Development and validation of platelet-to-albumin ratio as a clinical predictor for diffuse large B-cell lymphoma.

Introduction: Diffuse large B-cell lymphoma (DLBCL) is the most common subtypes of lymphoma. Clinical biomarkers are still required for DLBCL patients to identify high-risk patients. Therefore, we developed and validated the platelet-to-albumin (PTA) ratio as a predictor for DLBCL patients.

Optimal N-acetylcysteine concentration for intratympanic injection to prevent cisplatin-induced ototoxicity in guinea pigs.

Background: Cisplatin is a chemotherapy drug that can induce sensorineural hearing loss. At present, no otoprotective agent is approved for use.

Objectives: This study investigated the optimal concentration of intratympanic N-acetylcysteine (NAC) to prevent cisplatin-induced ototoxicity in a guinea pig model.

Cordycerebroside A inhibits ICAM-1-dependent M1 monocyte adhesion to osteoarthritis synovial fibroblasts.

Osteoarthritis (OA) is represented by the accumulation and adhesion of M1 macrophages into synovium tissues in the joint microenvironment and subsequent inflammatory response. Cordycerebroside A, a cerebroside compound isolated from Cordyceps militaris, exhibits anti-inflammatory activity, but has not yet been examined in M1 macrophages during OA disease. Our results indicate higher expression of M1 macrophage markers in synovium tissue from OA patients compared with normal healthy controls.

Nesfatin-1 facilitates IL-1β production in osteoarthritis synovial fibroblasts by suppressing miR-204-5p synthesis through the AP-1 and NF-κB pathways.

The progression of osteoarthritis (OA) is mediated by adipokines, one of which is nesfatin-1, which is responsible for the production of inflammatory cytokines. However, how this molecule may affect the synthesis of the proinflammatory cytokine interleukin 1 beta (IL-1β) in OA is unclear. Our analyses of records from the Gene Expression Omnibus (GEO) dataset and clinical specimens of synovial tissue revealed higher levels of nesfatin-1 and IL-1β in OA samples compared with normal healthy tissue.

To evaluate the serum cortisol, salivary cortisol, and serum interleukin-1 B level in patients of chronic periodontitis with smoking and stress and without smoking and stress.

The role of cognitive, social and biological factors in the etiology of chronic periodontitis has been reported.The aim of this study was to evaluate the salivary cortisol level and interleukin-1 B level in patients of Chronic periodontitis in smokers and stress and nonsmokers without stress.The design of study randomized, prospective, double-blinded, and prospective study.

Homogeneous and Nanoparticle Gold-Catalyzed Hydrothiocyanation of Haloalkynes.

The first homogeneous and heterogeneous nanoparticle gold-catalyzed addition of sulfur nucleophiles to alkynes was developed. More specifically, gold-catalyzed hydrothiocyanation of haloalkynes gave good yields and good stereoselectivity of vinyl thiocyanates. Furthermore, a sulfur-based gold catalyst (PPhAuSCN) has shown a unique reactivity in gold-catalyzed reactions such as the cyclization of N-propargylic amides.

Hydrosalpinx with Adnexa Torsion Treated with a Salpingostomy in a Virgin Woman.

Hydrosalpinx in reproductive-age women without sexual experience is uncommon and may be asymptomatic. Hydrosalpinx-induced torsion of the adnexa is a rare situation and requires prompt and accurate management. This report describes a 21-year-old female without history of sexual intercourse presented with right lower abdominal pain.

Synthesis of α-amino ketones through aminations of umpoled enolates.

An efficient synthesis of α-amino ketones is developed using the umpolung strategy. Umpoled enolates such as N-alkenoxypyridinium salts react smoothly with diverse amines to give α-amino ketones via an SN2' pathway. This umpolung strategy overcomes the drawbacks of traditional methods such as the need for prefunctionalized ketone derivatives.

Aptamer-functionalized Fe O magnetic nanoparticles as a solid-phase extraction adsorbent for the selective extraction of berberine from Cortex phellodendri.

The extraction adsorbent was fabricated by immobilizing the highly specific recognition and binding of aptamer onto the surface of Fe O magnetic nanoparticles, which not only acted as recognition elements to recognize and capture the target molecule berberine from the extract of Cortex phellodendri, but also could favor the rapid separation and purification of the bound berberine by using an external magnet. The developed solid-phase extraction method in this work was useful for the selective extraction and determination of berberine in Cortex phellodendri extracts. Various conditions such as the amount of aptamer-functionalized Fe O magnetic nanoparticles, extraction time, temperature, pH value, Mg concentration, elution time and solvent were optimized for the solid-phase extraction of berberine.

Detection of Aβ oligomers based on magnetic-field-assisted separation of aptamer-functionalized FeO magnetic nanoparticles and BaYF:Yb,Er nanoparticles as upconversion fluorescence labels.

A sensitive and stable bioassay for the detection of Aβ oligomer (Aβo), a potentially promising candidate biomarker for Alzheimer's disease (AD) diagnosis, was developed using FeO magnetic nanoparticles (MNPs) as the recognition and concentration elements and BaYF:Yb,Er upconversion nanoparticles (UCNPs) as highly sensitive labels, conjugated with the Aβo aptamer (DNA1) and the complementary oligonucleotide of the Aβo aptamer (DNA2), respectively. The DNA1 hybridized with DNA2 to form the duplex structure on the surface of the MNPs/UCNPs nanocomposites probe. When the target Aβo was introduced, the aptamer DNA1 preferentially bound with Aβo and caused the dissociation of some complementary DNA2, liberating some UCNP-labeled complementary DNA2 and leading to a decreased upconversion fluorescent intensity on the surface of MNPs.

Ventilator-associated pneumonia after cardiac surgery: a meta-analysis and systematic review.

Objective: Ventilator-associated pneumonia (VAP) is the most common and serious nosocomial infection that threatens patients who have undergone cardiac surgery. This article summarizes its clinical characteristics and provides theoretical evidence for prevention and treatment.

Methods: A literature search was conducted using PubMed, Embase, the Cochrane Library, and Web of Knowledge databases and by manual search.

[The causes of death and risk factors in patients of war wound and trauma of extremities by logistic regression model].

Objective: To explore the causes of death and risk factors in patients of war wound and trauma of extremities.

Methods: This retrospective study involved 352 patients of war wound and trauma of extremities admitted to 303rd Hospital of People's Liberation Army during the period between 1968 to 2002. All the data were reviewed and the causes of death of 15 patients were analyzed by autopsy, and a computer's logistic regression model analysis was performed to approach the risk factors of death.