C/EBP-β/MeCP2/Wnt Axis Participates in the Testicular Injury in Rats Under Simulated Microgravity Conditions.

Background And Objective: As space exploration advances, the effects of the microgravity environment on testicular injury and spermatogenic function in astronauts have attracted widespread attention, but the underlying mechanisms remain unclear.

Methods: In this study, testicular morphometry and Johnsen score were used to evaluate the degree of testicular injury. Then the upstream transcription factors of MeCP2 were verified using the dual-luciferase reporter assay.

Steroidal alkaloids from the rhizomes of Veratrum stenophyllum with anti-inflammatory potential.

4 new isosteroidal alkaloids (1-4) and 21 known analogues (5-25) were isolated from Veratrum stenophyllum rhizomes. At a concentration of 5 μM, compounds 1, 2, 5, and 15 inhibited nitric oxide production and lactate dehydrogenase release in lipopolysaccharide-induced RAW 264.7 macrophages.

Discussion on the effects of Chinese medicine processing on the changes of medicinal properties based on the changes of chemical constituents and pharmacodynamic perspective.

Ethnopharmacology Relevance: The theory of medicinal properties in Traditional Chinese Medicine (TCM) has a long history and serves as the foundation and core of TCM's theoretical system. It plays an irreplaceable role in guiding clinical medication and enhancing therapeutic efficacy. TCM processing is a traditional technology for processing and treating Chinese medicinal materials, which is a major characteristic of clinical TCM practice.

Identifying and validating immunological biomarkers in obstructive sleep apnea through bioinformatics analysis.

Obstructive sleep apnea (OSA) is a prevalent sleep disorder characterized by disrupted breathing patterns and dysfunctions in multiple organ systems. Although studies support a close correlation between OSA and immune function, the broader implications and specific manifestations remain unclear. Therefore, it is pressingly needed to identify potential immune-related markers and elucidate underlying immunological mechanisms of OSA.

Analysis of Blood Absorption Components by UPLC-Q-TOF-MS/MS From Anemarrhenae Rhizoma Before and After Salt Processing.

To investigate the material basis for the increased efficacy of Anemarrhenae Rhizoma (AR) after salt processing, this study employed UPLC-Q-TOF-MS/MS technology to analyze metabolites in both AR and salt-processed AR (SAR) extracts, as well as in serum samples treated with these extracts. The results identified 54 chemical components in AR and SAR under both positive and negative ion modes, with 21 prototype components detected in the bloodstream. A comparative analysis of serum absorption levels revealed higher concentrations of neomangiferin, mangiferin, and other chemical constituents in the SAR group than in the AR group.

[Prediction of mechanism of ginger-processed Anemarrhenae Rhizoma in intervening in cough due to cold and dampness in lung based on network pharmacology].

This study employed network pharmacology, molecular docking, and animal experiments to investigate the mechanism of ginger-processed Anemarrhenae Rhizoma in treating cough due to cold and dampness in lung, aiming to provide a modern pharmacological basis for this therapy. The active ingredients of ginger-processed Anemarrhenae Rhizoma were retrieved from the Traditional Chinese Medicine Systems Pharmacology Database and Analysis Platform(TCMSP) with the oral bioavailability(OB≥30%) and drug likeness(DL≥0.18) as the screening conditions and from the relevant literature.

Monodisperse, Highly Spherical, Single Crystalline Au Nanospheres for Uniform and Reproducible Hot Spots in Surface-Enhanced Raman Scattering at the Single-Particle Level.

Hot spots can generate intense local electromagnetic (EM) fields, thereby boosting diverse innovative applications. However, these applications may face challenges due to their subtle structural changes that can significantly impact their EM field strength. Herein, we report a large-scale synthesis of monodisperse, highly spherical, single crystalline (SC) Au nanospheres (Au NSs) with tunable sizes ranging from 38 to 92 nm for constructing uniform and reproducible hot spots with a nanosphere-on-mirror (NSoM) configuration.

BILL Strategy: Points to Consider During the Performance and Interpretation of Critical Care Echocardiography.

The growing utilization of critical care echocardiography (CCE) by clinicians necessitates a meticulous review of clinical conditions in critically ill patients, both before and during the examination. The reviewing process of clinical conditions minimizes the risk of overlooking or misinterpreting crucial findings. This article proposes a comprehensive strategy, namely BILL strategy, to integrate into the CCE protocol, where "B" represents baseline respiratory and hemodynamic support, "I" signifies information gleaned from invasive monitoring, including central venous pressure and thermodilution-derived cardiac output, the first "L" denotes laboratory results such as central venous oxygen saturation, troponin, and brain natriuretic peptide, and the second "L" refers to lung ultrasound data.

[2-DG improves lung ischemia/reperfusion injury by inhibiting NLRP3-mediated pyroptosis in rats].

The aim of this study was to investigate whether the protective effect of 2-deoxyglucose (2-DG) on lung ischemia/reperfusion (I/R) injury is mediated by inhibiting nucleotide-binding oligomerization domain-like receptor protein 3 (NLRP3)-mediated pyroptosis in rats. Male Sprague-Dawley rats were randomly divided into control group, 2-DG group, lung I/R injury group (I/R group) and 2-DG+I/R group. 2-DG (0.

Synergistic Effects of TiO and Carbon Black for Water Evaporation-Induced Electricity Generation.

Water evaporation-induced electricity generators (WEGs) have drawn widespread attention in the field of hydrovoltaic technology, which can convert atmospheric thermal energy into sustainable electric power. However, it is restricted in the wide application of WEGs due to the low power output, complex fabrication process, and high cost. Herein, we present a simple and effective approach to fabricate TiO-carbon black film-based WEGs (TC-WEGs).

2-Bromopalmitate inhibits malignant behaviors of HPSCC cells by hindering the membrane location of Ras protein.

Palmitoylation, which is mediated by protein acyltransferase (PAT) and performs important biological functions, is the only reversible lipid modification in organism. To study the effect of protein palmitoylation on hypopharyngeal squamous cell carcinoma (HPSCC), the expression levels of 23 PATs in tumor tissues of 8 HPSCC patients were determined, and high mRNA and protein levels of DHHC9 and DHHC15 were found. Subsequently, we investigated the effect of 2-bromopalmitate (2BP), a small-molecular inhibitor of protein palmitoylation, on the behavior of Fadu cells in vitro (50 μM) and in nude mouse xenograft models (50 μmol/kg), and found that 2BP suppressed the proliferation, invasion, and migration of Fadu cells without increasing cell apoptosis.

Revealing the role of interfacial water and key intermediates at ruthenium surfaces in the alkaline hydrogen evolution reaction.

Ruthenium exhibits comparable or even better alkaline hydrogen evolution reaction activity than platinum, however, the mechanistic aspects are yet to be settled, which are elucidated by combining in situ Raman spectroscopy and theoretical calculations herein. We simultaneously capture dynamic spectral evidence of Ru surfaces, interfacial water, *H and *OH intermediates. Ru surfaces exist in different valence states in the reaction potential range, dissociating interfacial water differently and generating two distinct *H, resulting in different activities.

[Panax notoginseng saponins improve monocrotaline-induced pulmonary arterial hypertension in rats by inhibiting ADAM10/Notch3 signaling pathway].

In this study, we investigated the effects of Panax notoginseng saponins (PNS) on pulmonary vascular remodeling and ADAM10/Notch3 pathway in pulmonary arterial hypertension (PAH). PAH rat model was established, and male Sprague Dawley (SD) rats were randomly divided into control group, monocrotaline (MCT) group and MCT+PNS group, with 10 rats in each group. Rats in the control group were intraperitoneally injected with equal volume of normal saline.

[Effects of panax notoginseng saponins on pulmonary vascular remodeling in rats with pulmonary hypertension and its mechanisms].

To investigate the effects of panax notoginseng saponins (PNS) on pulmonary vascular remodeling and SIRT1/FOXO3a/p27 pathway in pulmonary arterial hypertension (PAH) rats. Male SD rats weighing 200~250g were randomly divided into control group, monocrotaline group (MCT) and monocrotaline + panax notoginseng saponins group (MCT+PNS), with 10 rats in each group. The rats in control group were injected intraperitoneally with normal saline 3 ml/kg on the first day, then injected intraperitoneally with normal saline 2.

Comparison of the pharmacokinetics of timosaponin AIII, timosaponin BIII, and mangiferin extracted from crude and salt-processed by UPLC-MS/MS.

Processing is a traditional method for preparing decoctions of traditional Chinese medicine (TCM) that is imperative for reducing toxicity, increasing efficacy, and adjusting the properties of pharmacologically active components of the TCM. Salt processing of (AR), a traditional Chinese herb, has been employed since the Song dynasty and can enhance the ability of AR to enriching the Yin and downbearing fire according to the traditional theory recorded in the Enlightenment on Materia Medica. Previous research found that the hypoglycemic effect of AR was enhanced after salt processing, and the concentrations of three components, namely timosaponin AIII, timosaponin BIII, and mangiferin, all of which have hypoglycemic activities, have been found to be significantly increased after salt processing.

Gamabufotalin Induces Apoptosis and Cytoprotective Autophagy through the mTOR Signaling Pathway in Hepatocellular Carcinoma.

Hepatocellular carcinoma (HCC) is a malignant tumor with a high rate of recurrence and a poor prognosis. Here, we investigated the effect and the potential antitumor mechanism of Gamabufotalin (CS-6) against HCC. Our results show that CS-6 strikingly reduced cell viability, inhibited colony formation, and promoted apoptosis in Hep3B and Huh7 cells.

Self-Appraisal of Clinical Competence in Echocardiography of Chinese Intensivists Post Basic Echocardiography Training.

Objectives To learn the echocardiography skills of intensivists after receiving a basic critical care echocardiography training course, and investigate factors that may influence their performance. Methods We completed a web-based questionnaire that assessed the skills in ultrasound scanning techniques of intensivists who took a training course on basic critical care echocardiography held in 2019 and 2020. Mann-Whitney test was used to analyze the factors which might affect their performance on image acquisition, recognizing clinical syndrome, and measuring the diameter of inferior vena cava, left ventricular ejection fraction and left ventricular outflow tract velocity-time integral.

Current situation of acute ST-segment elevation myocardial infarction in a county hospital chest pain center during an epidemic of novel coronavirus pneumonia.

Our object was to examine how the pre- and post-pandemic COVID-19 impacted the care of acute ST-segment elevation myocardial infarction (STEMI) patients in county hospitals. Using January 20, 2020, as the time point for the control of a unique coronavirus pneumonia epidemic in Jieshou, 272 acute STEMI patients were separated into pre-epidemic (group A, = 130) and epidemic (group B, = 142). There were no significant differences between the two groups in terms of mode of arrival, symptom onset-to-first medical contact time, door-to-needle time, door-to-balloon time, maximum hypersensitive cardiac troponin I levels, and in-hospital adverse events ( > 0.

COP1 Mediates Dark-Induced Stomatal Closure by Suppressing , and Expression to Promote NO Accumulation in Arabidopsis Guard Cells.

RING-finger-type ubiquitin E3 ligase Constitutively Photomorphogenic 1 (COP1) and floral integrators such as FLOWERING LOCUS T (FT), TWIN SISTER OF FT (TSF) and SUPPRESSOR OF OVEREXPRESSION OF CONSTANS1 (SOC1) have been identified as regulators of stomatal movement. However, little is known about their roles and relationship in dark-induced stomatal closure. Here, we demonstrated that COP1 is required for dark-induced stomatal closure using mutant.

A cross-sectional survey on the lung ultrasound training and practice of respiratory therapists in mainland China.

Purpose: This national study aimed to investigate the lung ultrasound (LUS) training and practice of respiratory therapists (RTs) in mainland China.

Methods: A cross-sectional multicenter survey was conducted from May 22, 2021 to August 12, 2021, through online platforms. This survey included RTs in mainland China.

[Role of autophagy in liver injury induced by lung ischemia/ reperfusion in rats].

To investigate the liver injury induced by lung ischemia / reperfusion(LI/R) and the role of autophagy in its prevention and treatment. The lung ischemia/reperfusion injury(LI/RI) model was prepared by anesthetizing the rats, cutting the trachea for mechanical ventilation, and using an arterial clamp to close the pulmonary hilum to simulate the ischemic process, and releasing the arterial clamp after 30 min to resume perfusion for 3 h. SD rats(=24)were randomly divided into sham operation(sham)group,ischemia/reperfusion(I/R)group,solvent(DMSO)group and autophagy inhibitor (3-MA) group, 6 rats in each group.

Ethylene Acts as a Local and Systemic Signal to Mediate UV-B-Induced Nitrate Reallocation to Arabidopsis Leaves and Roots via Regulating the ERFs-NRT1.8 Signaling Module.

Nitrate is the preferred nitrogen source for plants and plays an important role in plant growth and development. Under various soil stresses, plants reallocate nitrate to roots to promote stress tolerance through the ethylene-ethylene response factors (ERFs)-nitrate transporter (NRT) signaling module. As a light signal, ultraviolet B (UV-B) also stimulates the production of ethylene.

Combining stereotactic body radiotherapy with camrelizumab for unresectable hepatocellular carcinoma: a single-arm trial.

Purpose: Stereotactic body radiotherapy (SBRT) may have significant immunomodulatory effects that enhance tumor response to immune checkpoint inhibitors. This phase 2 clinical trial was conducted to evaluate the safety and efficacy of combining palliative SBRT with camrelizumab (an anti-PD1 monoclonal antibody) in patients with unresectable hepatocellular carcinoma (uHCC).

Methods: Patients with uHCC, Child-Pugh A/B liver function, and at least one measurable lesion were enrolled between April 2020 and August 2022.