Background: The polymorphism of the apolipoprotein E (ApoE) gene has been implicated in both the susceptibility to neurodegenerative disease and the prognosis of traumatic brain injury (TBI). However, the influence of ApoE on the risk of hemorrhagic transformation (HT) after acute ischemic stroke remains inconclusive. The present study aimed to investigate the potential impact of ApoE deficiency on the risk of hyperglycemia-associated HT and to elucidate the underlying mechanisms.
View Article and Find Full Text PDFTwo novel phenylpropanoids (compounds 1 and 2) and 11 known compounds were isolated from Smilax china L. Their structures were determined by NMR (1D and 2D) and high-resolution electrospray ionization mass spectrometry. Further, the cytotoxic activity of all the isolated compounds against HeLa, 4T1, and U251 tumor cells was evaluated using the cell counting kit-8 assay, revealing that compound 13 showed significant cytotoxicity toward HeLa cells.
View Article and Find Full Text PDFJ Asian Nat Prod Res
December 2024
The preliminary study revealed that the ethyl acetate eluate of (YJ-E) could inhibit the expression of key proteins of p-p65, p-IκBα, p-IKKα/β, and p-AKT in LPS stimulated BV2 cell. Further phytochemical study led to the isolation of eight compounds from YJ-E, including one new sesquiterpene lactone. Their structures were elucidated by several spectroscopic data, and comparing the NMR data of known compound.
View Article and Find Full Text PDFIn the process of searching for anti-breast cancer agents, five sesquiterpene lactones (1-5), including two previously undescribed ones, yjaponica B-C (1-2), were isolated from the herb of Youngia japonica. Their structures were elucidated by spectroscopic data analyses and Marfey's method. Cytotoxic activities of all compounds against A549, U87, and 4T1 cell lines were tested using the CCK8 assay.
View Article and Find Full Text PDFObjective: To investigate the prevalence and severity of pelvic floor disorders (PFD), and the associations between treatment type and PFD, and cancer stage and PFD in patients before and after hysterectomy for gynaecological cancer; and the changes in outcomes over time.
Design: Longitudinal cohort study.
Setting: Gynaecological oncology outpatient clinics.
This study aims to investigate the protective effect of salidroside(SAL) on renal damage in diabetic nephropathy(DN) mice based on the receptor for advanced glycation end products/janus activated kinase 1/signal transduction and activator of transcription 3(RAGE/JAK1/STAT3) signaling pathway. The mouse DN model was established by high-fat/high-sucrose diets combined with intraperitoneal injection of streptozocin(STZ). Mice were randomly divided into normal group, model group, low-dose SAL group(20 mg·kg~(-1)), high-dose SAL group(100 mg·kg~(-1)), and metformin group(140 mg·kg~(-1)), with 12 mice in each group.
View Article and Find Full Text PDFPrevious studies have revealed the microbial metabolism of dietary choline in the gut, leading to its conversion into trimethylamine (TMA). Polymethoxyflavones (PMFs), exemplified by tangeretin, have shown efficacy in mitigating choline-induced cardiovascular inflammation. However, the specific mechanism by which these compounds exert their effects, particularly in modulating the gut microbiota, remains uncertain.
View Article and Find Full Text PDFFourteen sesquiterpenes, including one undescribed sesquiterpene lactone, were isolated from Youngia japonica, and their structures were identified by NMR, HRESIMS, ECD and calculated ECD. Cytotoxic activities of all isolates against A549, HeLa, and 4 T1 cell lines were detected by CCK8 assay. Among them, 2 showed obvious cytotoxic activity against A549 cells.
View Article and Find Full Text PDFMaterials (Basel)
December 2023
In order to design an involute spline made of PEEK (polyetheretherketone)-based material with better performance and improve the design rules of involute splines, initially, an involute splines design theory for PEEK (polyetheretherketone)-based materials is presented, which combines international standards (ISO 4156, 1. 2. 3, 2005), American standards (ANSI B92.
View Article and Find Full Text PDFPurpose: To assess the feasibility and clinical outcomes of telehealth-delivered pelvic floor muscle training (PFMT) for urinary incontinence (UI) and/or faecal incontinence (FI) after gynaecological cancer surgery.
Methods: In this pre-post cohort clinical trial, patients with incontinence after gynaecological cancer surgery underwent a 12-week physiotherapist-supervised telehealth-delivered PFMT program. The intervention involved seven videoconference sessions with real-time feedback from an intra-vaginal biofeedback device and a daily home PFMT program.
To date, the identification of crypotococcal relapse remains clinically challenging as it often has similar manifestation with paradoxical immune reconstitution inflammatory syndrome. This study reports on the use of metagenomics assisted next generation sequencing to aid in diagnosing recurrent cryptococcal meningitis in an person living with HIV experiencing recurring symptoms, despite negative culture results for in the cerebrospinal fluid. Although fungal culture was negative, when reads from metagenomic and metatranscriptomic sequencing performed on the Day 308 cerebrospinal fluid sample were mapped onto the genome from the Day 4 isolate, 589 specific reads were identified.
View Article and Find Full Text PDFExcessive reactive oxygen species (ROS) production contributes to brain ischemia/reperfusion (I/R) injury through many mechanisms including inflammation, apoptosis, and cellular necrosis. Chebulic acid (CA) isolated from has been found to have various biological effects, such as antioxidants. In this study, we investigated the mechanism of the anti-hypoxic neuroprotective effect of CA in vitro and in vivo.
View Article and Find Full Text PDFBackground: Cerebrovascular lesions could induce affective disorders; however, the depression- and anxiety-related symptoms caused by Chronic Cerebral Hypoperfusion (CCH) and the roles of different Hyperpolarization-activated Cyclic Nucleotide-gated (HCN), KCNQ and G protein-coupled inwardly rectifying potassium (GirK) channel subunits in these pathological processes have been poorly elucidated so far.
Objective: To investigate the behavioral change and the alteration of HCN, KCNQ, and GirK subunits in amygdale rats suffering from CCH.
Methods: Permanent bilateral occlusion of the common carotid arteries was used to induce CCH.
Current therapies for ischemic stroke are insufficient due to the lack of specific drugs. This study aimed to investigate the protective activity of polyphenol extracts from against cerebral ischemia-reperfusion induced damage. Polyphenols of ethyl acetate and n-butanol fractions were extracted from .
View Article and Find Full Text PDFLoading quantum information deterministically onto a quantum node is an important step toward a quantum network. Here, we demonstrate that coherent-state microwave photons with an optimal temporal waveform can be efficiently loaded onto a single superconducting artificial atom in a semi-infinite one-dimensional (1D) transmission-line waveguide. Using a weak coherent state (the number of photons () contained in the pulse ≪1) with an exponentially rising waveform, whose time constant matches the decoherence time of the artificial atom, we demonstrate a loading efficiency of 94.
View Article and Find Full Text PDFBackground And Objective: Variations in the risk factors for sarcopenia can lead to differences in the likelihood of developing sarcopenia among older adults; however, few studies have explored the interactions among the risk factors. This study examined the interactions among risk factors and identified a discriminative pathway for groups at risk of sarcopenia in community-dwelling older adults.
Methods: A cross-sectional study was conducted between July and August 2019 to recruit 200 older adults from an outpatient department of a hospital providing care for older people.
As a psychoactive substance abused worldwide, methamphetamine (METH) abuse leads to multiple neurodegenerative symptoms including memory deficits. Terminalia chebula retzius extracts (TREs) isolated by our lab have great antioxidant activity and its effect on METH-induced memory deficits has not been investigated yet. The present study was designed to investigate the protective effect of TREs on METH induced cell apoptosis in vitro and memory deficits in vivo.
View Article and Find Full Text PDFWorkplace burnout is common among nurse practitioners (NPs) and often occurs during role transition from a registered nurse to an NP. This study aimed to explore the predictors of job burnout in nurse practitioners (NPs). A quantitative cross-sectional design was conducted on 361 convenience sample of NPs from four hospitals in central Taiwan.
View Article and Find Full Text PDFBackground: Chronic fatigue syndrome (CFS) has been shown to be associated with infections. Tuberculosis (TB) is a highly prevalent infectious disease. Patients with chronic fatigue syndrome and post-tuberculosis experience similar symptoms.
View Article and Find Full Text PDFBACKGROUND: Evaluation of stroke recovery outcome is crucial and a major goal of clinical practice. A recovery trajectory model serves as a prognostic tool that enables development of effective intervention and long-term management to improve poststroke recovery outcomes. This study explored time-varying risk factors associated with the progression of functional recovery and psychological distress poststroke.
View Article and Find Full Text PDFThis study describes a mouse model of progressive resistance exercise that utilizes a full-body/multi-joint exercise (weight pulling) along with a training protocol that mimics a traditional human paradigm (three training sessions per week, ~8-12 repetitions per set, 2 min of rest between sets, approximately two maximal-intensity sets per session, last set taken to failure, and a progressive increase in loading that is based on the individual's performance). We demonstrate that weight pulling can induce an increase in the mass of numerous muscles throughout the body. The relative increase in muscle mass is similar to what has been observed in human studies, and is associated with the same type of long-term adaptations that occur in humans (e.
View Article and Find Full Text PDFBackground: Weight control is a widespread phenomenon among young adults, especially in women.
Aim: This study aimed to determine the prediction factors of weight control intention in a young Chinese sample.
Methods: A cross-sectional study was conducted with 963 (276 male and 687 female; mean age 21.
J Deaf Stud Deaf Educ
September 2020
To examine deaf and hard-of-hearing (DHH) students' awareness of phoneme repetition in Chinese sentence reading, two experiments were conducted in the self-paced, moving-window reading paradigm. The materials comprised sentences in which Chinese characters that sequentially followed each other shared similar spelling initials and finals in Experiments 1 and 2, respectively. In comparison to hearing participants, DHH participants were more likely to find it more time-consuming to read sentences with, as opposed to without, phoneme repetitions.
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