Organosulfur polymer is an emerging cathode material for lithium-sulfur batteries due to its solid-solid reaction and shuttle effect-free kinetics behavior. Here, The organosulfur polymers polypropyl trisulfide (P3S) and polypropyl tetrasulfide (P4S) containing short-chain sulfur by interfacial polycondensation reaction are synthesized. Then selenium (Se) atoms are introduced into the short-chain sulfur structure and form a P4SSe.
View Article and Find Full Text PDFCharacterizing the immune response and pathogen tissue dissemination during progressive Treponema pallidum (T. pallidum) infection in the human is crucial for comprehending syphilis but it remains poorly understood, due to the unethical nature of inoculating volunteers with T. pallidum.
View Article and Find Full Text PDFBackground: Alzheimer's disease (AD) was driven by the interplay between modifiable environmental factors and β-amyloid (Aβ) pathology. We aimed to investigate the interaction effects of mild depressive symptoms (MDS) with Aβ on AD development.
Methods: Longitudinal data of 1746 non-demented adults (mean age = 73 years, female = 53 %, maximum = 10 years) were derived from the Alzheimer's Disease Neuroimaging Initiative cohort.
Purpose: Accurate differentiation between early and late latent syphilis stages is pivotal for patient management and treatment strategies. Nontreponemal IgM antibodies have shown potential in discriminating latent syphilis staging by differentiating syphilis activity. This study aimed to develop a predictive nomogram model for latent syphilis staging based on nontreponemal IgM antibodies.
View Article and Find Full Text PDFViral diseases are among the main threats to public health. Understanding the factors affecting viral invasion is important for antiviral research. Until now, it was known that most viruses have very low plaque-forming unit (PFU)-to-particle ratios.
View Article and Find Full Text PDFA reductive amidation of triazine esters with nitroarenes by using cheap iron as a reducing metal in the presence of TMSCl in DMF was developed. The reactions proceeded efficiently under transition metal-free conditions to give the corresponding amides in moderate to good yields with good functional group compatibility. Preliminary mechanistic investigations indicated that nitrosobenzene, -phenyl hydroxylamine, azoxybenzene, azobenzene, aniline, and -arylformamide possibly served as the intermediates of the reaction.
View Article and Find Full Text PDFCarbon-based hole transport layer-free perovskite solar cells (PSCs) based on methylammonium lead triiodide (MAPbI ) have become one of the research focus due to low cost, easy preparation, and good optoelectronic properties. However, instability of perovskite under vacancy defects and stress-strain makes it difficult to achieve high-efficiency and stable power output. Here, a soft-structured long-chain 2D pentanamine iodide (abbreviated as "PI") is used to improve perovskite quality and interfacial mechanical compatibility.
View Article and Find Full Text PDFA straightforward cross-coupling of aryl thioether with aryl bromide with the aid of nickel salt, magnesium, and lithium chloride in tetrahydrofuran at ambient temperature was accomplished. The one-pot reactions proceeded efficiently via C-S bond cleavage to produce the desired biaryls in modest to good yields, avoiding the use of pregenerated or commercial organometallic reagents.
View Article and Find Full Text PDFBackground: Nontreponemal and treponemal tests for analyzing cerebrospinal fluid to confirm the existence of neurosyphilis have been widely used, so we aim to evaluate and compare their performance on the cerebrospinal fluid in the diagnosis of neurosyphilis.
Methods: We conducted a systematic literature search on five databases and utilized a bivariate random-effects model to perform the quantitative synthesis.
Results: Nontreponemal tests demonstrated a pooled sensitivity of 0.
Background: We aim to determine if nasal samples have equivalent detection sensitivity to nasopharyngeal swabs for RAT and evaluate the diagnostic accuracy of nasal swabs with RAT.
Methods: PubMed and Web of Science were searched for eligible studies published before August 23, 2022. A bivariate random effects model was used to perform the quantitative synthesis.
Background: The early detection of COVID-19 patients is fundamental for containing the pandemic. A reverse-transcriptase quantitative polymerase chain reaction (RT-PCR), which detects SARS-CoV-2 RNA, is the gold standard diagnostic test, although it can contribute to false-negative results. Consequently, supplementary diagnostic tests are urgently needed.
View Article and Find Full Text PDFBackground And Aims: We compared lung function parameters in nonalcoholic fatty liver disease (NAFLD) and metabolic dysfunction-associated fatty liver disease (MAFLD), and examined the association between lung function parameters and fibrosis severity in MAFLD.
Methods: In this cross-sectional study, we randomly recruited 2,543 middle-aged individuals from 25 communities across four cities in China during 2016 and 2020. All participants received a health check-up including measurement of anthropometric parameters, biochemical variables, liver ultrasonography, and spirometry.
Our and in vitro studies had confirmed that mechanosensitive ATP release and accumulation in acupoints was elicited by acupuncture (AP), which might be a pivotal step for triggering AP analgesia. But to date, the dynamics of extracellular ATP (eATP) in the interstitial space during AP process was poorly known, mainly due to the low temporal resolution of the current detection approach. This study attempted to capture rapid eATP signals in vivo in the process of needling, and further explored the role of this eATP mobilization in initiating AP analgesic effect.
View Article and Find Full Text PDFBackground: Serofast status is challenging to interpret in clinical work, and distinguishing active syphilis in serofast patients can provide a reference for clinical diagnosis and treatment. However, effective serologic markers for active syphilis are still lacking.
Objectives: We aimed to explore the possibility of nontreponemal IgM antibodies in distinguishing active syphilis in serofast patients.
Context: Chronic non-healing diabetic wound therapy is an important clinical challenge. Manipulating the release of bioactive factors from an adhesive hydrogel is an effective approach to repair chronic wounds. As an endogenous antioxidant, bilirubin (BR) has been shown to promote wound healing.
View Article and Find Full Text PDFAs an ancient analgesia therapy, acupuncture has been practiced worldwide nowadays. A good understanding of its mechanisms will offer a promise for its rational and wider application. As the first station of pain sensation, peripheral sensory ganglia express pain-related P2X receptors that are involved in the acupuncture analgesia mechanisms transduction pathway.
View Article and Find Full Text PDFTwisted trilayer graphene (TLG) may be the simplest realistic system so far, which has flat bands with nontrivial topology. Here, we give a comprehensive calculation about its band structures and the band topology, i.e.
View Article and Find Full Text PDFAcute pancreatitis is a sudden inflammation and only last for a short time, but might lead to a life-threatening emergency. Traditional drug therapy is an essential supportive method for acute pancreatitis treatment, yet, failed to achieve satisfactory therapeutic outcomes. To date, it is still challenging to develop therapeutic medicine to redress the intricate microenvironment promptly in the inflamed pancreas, and more importantly, avoid multi-organ failure.
View Article and Find Full Text PDFObjective: To compare the analgesic effect of manual acupuncture(MA) stimulation of "Zusanli" (ST36) in rats with inflammatory pain under unrestrained conscious, restrained and general anesthesia conditions, so as to explore the applicability of unrestrained conscious model in the evaluation of acupuncture analgesia effect.
Methods: Male SD rats were divided into 5 groups: blank control (=9), pain model (=7), unrestrained conscious conditions+MA (=6), restrained conditions+MA (=6), and general anesthesia (GA)+MA(=6). The acute pain model was established by injection of complete Freund's adjuvant (CFA) into the left ankle joint 48 h ahead of acupuncture.
Intrauterine adhesion (IUA) is characterized by endometrial stromal replaced with fibrous tissue during the trauma or operation induced injury. Current clinic IUA management mainly involves surgical removal of the connective tissues and physical separation and often results in reoccurrence. It is of clinic interest to directly address the issue via facilitating the endometrial repair and thereby inhibiting the formation of re-adhesion.
View Article and Find Full Text PDFDidymin is a dietary flavonoid that first found in citrus fruits, and possesses antioxidant properties. Our preliminary experiments first discovered that didymin was able to sensitize the resistant cancer cells against chemotherapeutics and combat multidrug resistance. However, its poor aqueous solubility and resultant low bioavailability limit its potentials as an adjuvant phytochemical drug for chemotherapy.
View Article and Find Full Text PDFArtif Cells Nanomed Biotechnol
December 2020
Decellularized extracellular matrix (dECM) has been considered as a promising scaffold in xenotransplantation, yet natural tissue dECM is often mechanically weak and rapidly degraded, compromising the outcomes. How to restore the mechanical strength and optimise the degradation, but maintain the microstructure and maximumly suppress the immune rejection, remains challenging. For this aim, we prepared and characterised various crosslinked decellularized rabbit uterus matrix (dUECM) and evaluated performance after uterus xenotransplantation from rabbit to rat.
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