[Isolation and identification of steroids from Cyanotis arachnoidea and their anti-HSV-1 activities in vitro].

The steroid constituents in the 75% ethanol extract of Cyanotis arachnoidea and their anti-HSV-1 activities in vitro were investigated in this study. The ethyl acetate fraction of the extract was isolated and purified using silica gel, ODS, Sephadex LH-20 column chromatography, and semi-preparative HPLC. Structural identification was conducted based on spectroscopic data.

Missense mutation in the activation segment of the kinase CK2 models Okur-Chung neurodevelopmental disorder and alters the hippocampal glutamatergic synapse.

Exome sequencing has enabled the identification of causative genes of monogenic forms of autism, amongst them, in 2016, CSNK2A1, the gene encoding the catalytic subunit of the kinase CK2, linking this kinase to Okur-Chung Neurodevelopmental Syndrome (OCNDS), a newly described neurodevelopmental condition with many symptoms resembling those of autism spectrum disorder. Thus far, no preclinical model of this condition exists. Here we describe a knock-in mouse model that harbors the K198R mutation in the activation segment of the α subunit of CK2.

[Pollution Assessment and Source Apportionment of Heavy Metals in the Surrounding Soil of Typical Mining Areas in Tongling, Anhui Province].

To study the level of heavy metal pollution and ecological risks in the soil around typical mining areas in Tongling, a total of 150 soil samples were collected from the study area. The content characteristics of 10 elements, namely, As, Cd, Cr, Cu, Hg, Mn, Ni, Pb, Fe, and Zn, in the soils were analyzed. Methods including enrichment factor, the geo-accumulation index, single-factor pollution index, Nemero comprehensive pollution index, and potential ecological risk index were used to evaluate the pollution status of heavy metals in the soil of the study area.

Decreased expression of galectin-3 in the epidermis of psoriasis patients.

Conventional histopathological features of psoriasis and atopic dermatitis often overlap. We aimed to investigate Galectin-3 (Gal-3) expression in psoriatic skin lesions and its potential as an immunohistochemical marker for distinguishing between psoriasis and atopic dermatitis on a pathological basis. Based on immunohistochemical analysis, we assessed Gal-3 expression in formalin-fixed, paraffin-embedded tissue sections from 21 patients with psoriasis and 15 patients with atopic dermatitis.

Long-Term Efficacy and Safety of Stapokibart in Adults with Moderate-to-Severe Atopic Dermatitis: An Open-Label Extension, Nonrandomized Clinical Trial.

Background: Stapokibart/CM310, a humanized monoclonal antibody targeting the interleukin-4 receptor α chain, has shown promising treatment benefits in patients with moderate-to-severe atopic dermatitis in previous phase II clinical trials.

Objective: We aimed to evaluate the long-term efficacy and safety of stapokibart in adults with moderate-to-severe atopic dermatitis.

Methods: Enrolled patients who previously completed parent trials of stapokibart received a subcutaneous stapokibart 600-mg loading dose, then 300 mg every 2 weeks up to 52 weeks.

Transformation of spatial representations along hippocampal circuits.

The hippocampus is thought to provide the brain with a cognitive map of the external world by processing various types of spatial information. To understand how essential spatial variables such as direction, position, and distance are transformed along its circuits to construct this global map, we perform single-photon widefield microendoscope calcium imaging in the dentate gyrus and CA3 of mice freely navigating along a narrow corridor. We find that spatial activity maps in the dentate gyrus, but not in CA3, are correlated after aligning them to the running directions, suggesting that they represent the distance traveled along the track in egocentric coordinates.

Oral microbiota distinguishes patients with osteosarcoma from healthy controls.

Objective: The human microbiota plays a key role in cancer diagnosis, pathogenesis, and treatment. However, osteosarcoma-associated oral microbiota alterations have not yet been unraveled. The aim of this study was to explore the characteristics of oral microbiota in osteosarcoma patients compared to healthy controls, and to identify potential microbiota as a diagnostic tool for osteosarcoma.

Expert Consensus on the Application of Stem Cells in Psoriasis Research and Clinical Trials.

Psoriasis is an immune-mediated, chronic, relapsing, inflammatory, systemic disease induced by individual-environmental interactions, and is often lifelong because of the difficulty of treatment. In recent years, a variety of targeted therapies, including biologics, have improved the lesions and quality of life of most psoriasis patients, but they still do not address the problem of relapse and may be associated with decreased efficacy or adverse events such as infections over time. Therefore, there is an urgent need for breakthroughs in psoriasis treatment and in relapse-delaying and non-pharmacologic strategies, and stem cell therapy for psoriasis has emerged.

The efficacy and safety of monoclonal antibody therapies for interstitial cystitis/bladder pain syndrome: A meta-analysis of randomized controlled trials.

Objectives: This study aimed to assess the efficacy and safety of monoclonal antibody therapies (MATs) for interstitial cystitis/bladder pain syndrome (IC/BPS).

Methods: A systematic search was conducted across databases including PubMed, Embase, clinicalTrial.gov, and the Cochrane Library Central Register of Controlled Trials.

[Research on the anti-tumor effects of CRYAB in prostate cancer].

Objective: To explore the relationship between CRYAB and the prognosis of prostate cancer (PCa) as well as the potential mechanism.

Methods: Bioinformatics analysis was performed using R software, including differential gene expression and clinical correlation analysis, receiver operating characteristic (ROC) curve and Kaplan-Meier (KM) curve generation. Gene expression was detected using RT-qPCR, and protein expression was validated using Western Blot.

Five new secondary metabolites from Aster tataricus.

Aster tataricus L.f. is highly valued for its rich reserves of bioactive compounds.

CA3 hippocampal synaptic plasticity supports ripple physiology during memory consolidation.

The consolidation of recent memories depends on memory replays, also called ripples, generated within the hippocampus during slow-wave sleep, and whose inactivation leads to memory impairment. For now, the mobilisation, localisation and importance of synaptic plasticity events associated to ripples are largely unknown. To tackle this question, we used cell surface AMPAR immobilisation to block post-synaptic LTP within the hippocampal region of male mice during a spatial memory task, and show that: 1- hippocampal synaptic plasticity is engaged during consolidation, but is dispensable during encoding or retrieval.

Four new alkaloids from the roots of .

Four new alkaloids (-), together with five known ones (-), were isolated from the bulbs of The structures were determined by analysis of their spectroscopic data and quantum-chemical calculations. All the isolates were tested for their ability to modulate neuronal Ca mobilization in primary cultured neocortical neurons. Compound inhibited spontaneous Ca oscillations at low micromolar concentrations.

Determining resuscitation threshold for extremely preterm infants based on the survival rates without severe neurological injury.

Background: Published guidelines on decision-making and resuscitation of extremely preterm infants primarily focus on high-income countries. For rapidly industrializing ones like China, there is a lack of population-based data for informing prenatal management and practice guidelines.

Methods: The Sino-northern Neonatal Network conducted a prospective multi-centre cohort study between 1 January 2018 and 31 December 2021.

Amelioration effects of α-viniferin on hyperuricemia and hyperuricemia-induced kidney injury in mice.

Background: α-Viniferin, the major constituent of the roots of Caragana sinica (Buc'hoz) Rehder with a trimeric resveratrol oligostilbenoid skeleton, was demonstrated to possess a strong inhibitory effect on xanthine oxidase in vitro, suggesting it to be a potential anti-hyperuricemia agent. However, the in vivo anti-hyperuricemia effect and its underlying mechanism were still unknown.

Purpose: The current study aimed to evaluate the anti-hyperuricemia effect of α-viniferin in a mouse model and to assess its safety profile with emphasis on its protective effect on hyperuricemia-induced renal injury.

Serum response factor promotes axon regeneration following spinal cord transection injury.

Studies have shown that serum response factor is beneficial for axonal regeneration of peripheral nerves. However, its role after central nervous system injury remains unclear. In this study, we established a rat model of T9-T10 spinal cord transection injury.

[Bacterial Community Structure and Antibiotic Resistance Gene Changes in IFAS+Magnetic Coagulation Process Wastewater Treatment Plant in Cold Regions].

The main objective of this study was to explore the changes in bacterial communities and antibiotic resistance genes (ARGs) in an integrated fixed-film activated sludge (IFAS)+magnetic coagulation process wastewater treatment plant (WWTP) in Xinjiang. The bacterial communities and ARGs in the influent, suspended activated sludge, attached biofilm, and effluent were studied using 16S rRNA gene sequencing and metagenomic sequencing. The results showed that the average relative abundances of Chloroflexi and Nitrospirae in activated sludge were 3.

[Mortality and cause of death of hospitalized neonates in Weifang, China: a multicenter study].

Objectives: To study the changes in the mortality rate and cause of death of hospitalized neonates in grade A tertiary hospitals in Weifang City of Shandong Province during a 10-year period.

Methods: A retrospective analysis was performed on 461 neonates who died in three grade A tertiary hospitals in Weifang City of Shandong Province from January 1, 2012 to December 31, 2021. The related clinical data were collected to examine the changes of neonatal mortality with time, gestational age (GA) and birth weight (BW).

A synaptic signal for novelty processing in the hippocampus.

Episodic memory formation and recall are complementary processes that rely on opposing neuronal computations in the hippocampus. How this conflict is resolved in hippocampal circuits is unclear. To address this question, we obtained in vivo whole-cell patch-clamp recordings from dentate gyrus granule cells in head-fixed mice trained to explore and distinguish between familiar and novel virtual environments.

Polysubstituted Cyclopentene Benzamides and Dianthramide Alkaloids from Hance.

Thirteen new benzamide alkaloids, delphiniumines A-M (-), together with one known analogue (), were isolated from Hance. All of the structures were determined by spectroscopic and spectrometric analyses. Absolute configuration for was established using experimental and calculated ECD data, as well as by X-ray crystallography analysis.

Phytochemical Characterizations of (Benth.) Prance.

Two new ursane-type triterpenoids, named Polyanside A () and B (), along with eleven known compounds (-), were isolated and elucidated from (Benth.) Prance. The structures of these compounds were elucidated based on chemical evidence and multiple spectroscopic data.

Hypeisoxazole A, a Racemic Pair of Tetrahydroisoxazole-Fused Benzylisoquinoline Alkaloids from and Structural Revision of Hypecoleptopine.

(±)-Hypeisoxazole A (), a racemic pair of rearranged benzylisoquinoline alkaloids possessing an unprecedented diindeno[2,1-c:2',1'-d] isoxazole scaffold, was isolated from the medicinal herb , along with hypecoleptopine (), whose structure is now revised as a novel spiro-benzylisoquinoline alkaloid with a 6/6/5/6/6 skeleton. Their structures were determined by comprehensive spectroscopic and spectrometric analyses, X-ray diffraction, and computational studies. Racemic mixture of and its pure enantiomers modulated neuronal excitability activity.

Cadinane Sesquiterpenoids and Their Glycosides from That Inhibit Spontaneous Calcium Oscillations.

Nine new cadinane sesquiterpenoids, alanenses A-I (-), were isolated from the leaves of together with three previously reported analogues (-). The structures of these molecules were elucidated by interpretation of spectroscopic and spectrometric data. Absolute configurations were established by the comparison of experimental and calculated ECD data, chemical degradation studies for sugar moieties, and a single-crystal X-ray diffraction analysis.