Alveolar-Capillary Barrier Protection In Vitro: Lung Cell Type-Specific Effects and Molecular Mechanisms Induced by 1α, 25-Dihydroxyvitamin D3.

Low serum levels of 1α, 25-dihydroxyvitamin D3 (VD3) are associated with a higher mortality in trauma patients with sepsis or ARDS. However, the molecular mechanisms behind this observation are not yet understood. VD is known to stimulate lung maturity, alveolar type II cell differentiation, or pulmonary surfactant synthesis and guides epithelial defense during infection.

ABT-263 enhanced bacterial phagocytosis of macrophages in aged mouse through Beclin-1-dependent autophagy.

Background: Sepsis is a critical challenge for the older adults as the immune function is less responsive by aging. Although cell numbers seem preserved in the older adults, macrophages present age-related function decline, which including reduced chemokines, phagocytosis, and autophagy. ABT-263, an inhibitor of the anti-apoptotic protein Bcl-2, is reported had a senolytic effect which can selectively clear the senescent cells in vivo and rejuvenate the aged tissues.

Near-infrared photothermal conversion of stable radicals photoinduced from a viologen-based coordination polymer.

Upon simple UV-visible irradiation, a viologen-based coordination polymer was transformed to a highly stable radical, protected against quenching by a densely packed structure. The photo-generated radical exhibited a remarkable near-infrared (NIR) photothermal effect with good recyclability and high conversion efficiency. To our knowledge, this is the first example of a crystalline viologen-based coordination polymer that functions as a NIR photothermal material by forming stable radicals.

Using Enhanced Green Fluorescence Protein-expressing Escherichia Coli to Assess Mouse Peritoneal Macrophage Phagocytosis.

This manuscript describes a simple and reproducible method to perform a phagocytosis assay. The first part of this method involves building a pET-SUMO-EGFP vector (SUMO = small ubiquitin-like modifier) and expressing enhanced green fluorescence protein (EGFP) in Escherichia coli (BL21DE). EGFP-expressing E.

Tranexamic acid is beneficial for reducing perioperative blood loss in transurethral resection of the prostate.

The aim of this randomized controlled trial was to evaluate the effect of tranexamic acid (TXA) on postoperative blood loss during transurethral resection of the prostate (TURP) for benign prostatic hyperplasia (BPH). A total of 60 patients with BPH and undergoing TURP were randomized into TXA and control groups. Patients were intravenously administered 1 g TXA or placebo (0.

Signal intensity influences on the atomic Faraday filter.

Previous studies of the Faraday anomalous dispersion optical filter (FADOF) mainly focus on the weak signal light filtering, without regard for the influences of the signal light intensity on the filter itself. However, in some applications the signal light is strong enough to change the filter's performance. In this work, the influences of the signal light intensity on the transmittance spectrum is experimentally investigated in a 780 nm Rb85 FADOF in both the line-center and wings operation modes.

Proteomic changes of CD4/CD25/forkhead box p3 regulatory T cells in a 30-day rat model of sepsis survival.

Sepsis is defined as life threatening organ dysfunction arising from a dysregulated host response to infection. The outcomes of sepsis include early mortality, delayed mortality and recovery, and depend on the inflammatory response. Previous studies have demonstrated that regulatory T cells (Tregs) are important in determining the outcome of sepsis, as their suppressive function serves a role in maintaining immune homeostasis.

Intraoperative hypothermia and its clinical outcomes in patients undergoing general anesthesia: National study in China.

Background/objective: Inadvertent intraoperative hypothermia (core temperature <36°C) is a frequently preventable complication with several adverse consequences. Our study aimed to determine the overall incidence of inadvertent intraoperative hypothermia and its risk factors associated with clinical outcomes in this national survey in China.

Methods: We conducted a national cross-sectional study with 30 days postoperative follow-up from November 2014 through August 2015.

Etomidate inhibits nuclear factor-κB through decreased expression of glucocorticoid receptor in septic rats.

The present study aimed to investigate the effect of etomidate administered prior to or following cecal ligation and puncture (CLP) on the expression of glucocorticoid receptor (GR) and lymphocyte apoptosis in septic rats. Right jugular vein catheterization was performed on female Sprague‑Dawley rats under isoflurane anesthesia, and CLP surgery was performed to induce sepsis 3 days following catheterization. The rats were randomly divided into five groups.

Analysis of excited-state Faraday anomalous dispersion optical filter at 1529 nm.

In this work, a detailed theoretical analysis of 1529 nm ES-FADOF (excited state Faraday anomalous dispersion optical filter) based on rubidium atoms pumped by 780 nm laser is introduced, where Zeeman splitting, Doppler broadening, and relaxation processes are considered. Experimental results are carefully compared with the derivation. The results prove that the optimal pumping frequency is affected by the working magnetic field.

Tunable rubidium excited state Voigt atomic optical filter.

A tunable rubidium excited state Voigt atomic optical filter working at optical communication wavelength (1.5 μm) is realized. The filter achieves a peak transmittance of 57.

The pituitary adenylate cyclase-activating polypeptide (PACAP) protects adrenal function in septic rats administered etomidate.

Background: Both hyperinflammation during sepsis and etomidate can suppress adrenal function. In this study, we explored whether treatment with pituitary adenylate cyclase-activating polypeptide (PACAP) relieves adrenal suppression in cecal ligation and puncture (CLP)-induced septic rats.

Materials And Methods: Female Sprague-Dawley rats were randomly divided into five groups (n=7 per group), including the sham group, sepsis group (CLP group), sepsis and etomidate group (CLP+ETO group), PACAP group, and etomidate alone group (ETO group).

Etomidate Mitigates Lipopolysaccharide-Induced CD14 and TREM-1 Expression, NF-κB Activation, and Pro-inflammatory Cytokine Production in Rat Macrophages.

This study was aimed at investigating the effect of etomidate on the viability of rat macrophages and the function of lipopolysaccharide (LPS)-stimulated macrophages as well as the potential mechanisms. Rat macrophages were isolated and treated with different doses of etomidate for 24 h, and their viability was determined by the CCK-8 assay. Furthermore, macrophages were treated with, or without, 1 μg/ml of LPS, and/or 2.

Pretreatment with low dose etomidate prevents etomidate-induced rat adrenal insufficiency by regulating oxidative stress-related MAPKs and apoptosis.

Etomidate is frequently used as an anesthetic and sedation agent in the clinic setting. This study determined that a low-dose pre-infusion followed by a continuous dose infusion of etomidate could reduce etomidate-induced adrenal gland insufficiency. Sixty adult male Wistar rats were used, with six rats per group.

Etomidate increases mortality in septic rats through inhibition of nuclear factor kappa-B rather than by causing adrenal insufficiency.

Background: Both hyperinflammation during sepsis and etomidate can suppress adrenal function. In this study, we explored whether pretreatment with etomidate can relieve adrenal suppression and its impact on outcomes of cecal ligation and puncture (CLP)-induced septic rats.

Materials And Methods: Rats (n = 18 per group) were divided in seven groups, including two control groups and treated with different combinations of a small pretreatment dose (0.

Involvement of mitochondrial ATP-sensitive potassium channels in etomidate preconditioning-induced protection in human myeloid HL-60 cells.

Exposure of HL-60 cells, a human myeloid cell line, to 500μM etomidate for 24h reduced cell viability and increased nitric oxide production and mitochondrial permeability transition pore (mPTP) opening. Preconditioning (1h) with 1μM etomidate 4h before exposure to the 500μM dose of etomidate attenuated those detrimental effects. The mitochondrial ATP-sensitive potassium channel (mitoK(ATP) channel) inhibitor 5-hydroxydecanoic acid reduced the etomidate preconditioning effects.