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1.
J Ethnopharmacol ; 319(Pt 3): 117359, 2024 Jan 30.
Article in English | MEDLINE | ID: mdl-37924999

ABSTRACT

ETHNOPHARMACOLOGICAL RELEVANCE: Woohwangchungsimwon (WCW) is a traditional medicine used in East Asian countries to treat central nervous system disorders. Reported pharmacological properties include antioxidant effects, enhanced learning and memory, and protection against ischemic neuronal cell death, supporting its use in treating neurodegenerative diseases like Alzheimer's disease (AD). AIM OF THE STUDY: The study aims to assess the effects of co-treatment with WCW and donepezil on cognitive functions and serum metabolic profiles in a scopolamine-induced AD model. MATERIALS AND METHODS: Cell viability and reactive oxygen species (ROS) levels were measured in amyloid ß-peptide25-35 (Aß25-35)-induced SH-SY5Y cells. An AD model was established in ICR mice by intraperitoneal scopolamine administration. Animals underwent the step-through passive avoidance test (PAT) and Morris water maze (MWM) test. Hippocampal tissues were collected to examine specific protein expression. Serum metabolic profiles were analyzed using nuclear magnetic resonance (NMR) spectroscopy. RESULTS: Co-treatment with WCW and donepezil increased cell viability and reduced ROS production in Aß25-35-induced SH-SY5Y cells compared to that with donepezil treatment alone. Co-treatment improved cognitive functions and was comparable to donepezil treatment alone in the PAT and MWM tests. Pathways related to tyrosine, phenylalanine, and tryptophan biosynthesis, phenylalanine metabolism, and cysteine and methionine metabolism were altered by co-treatment. Levels of tyrosine and methionine, major serum metabolites in these pathways, were significantly reduced after co-treatment. CONCLUSIONS: Co-treatment with WCW and donepezil shows promise as a therapeutic strategy for AD and is comparable to donepezil alone in improving cognitive function. Reduced tyrosine and methionine levels after co-treatment may enhance cognitive function by mitigating hypertyrosinemia and hyperhomocysteinemia, known risk factors for AD. The serum metabolic profiles obtained in this study can serve as a foundation for developing other bioactive compounds using a scopolamine-induced mouse model.


Subject(s)
Alzheimer Disease , Neuroblastoma , Humans , Mice , Animals , Mice, Inbred ICR , Alzheimer Disease/chemically induced , Alzheimer Disease/drug therapy , Donepezil , Amyloid beta-Peptides , Reactive Oxygen Species , Cognition , Metabolome , Methionine , Phenylalanine , Tyrosine , Scopolamine Derivatives
2.
Nat Neurosci ; 26(10): 1775-1790, 2023 10.
Article in English | MEDLINE | ID: mdl-37667039

ABSTRACT

The mesencephalic locomotor region (MLR) is a brain stem area whose stimulation triggers graded forward locomotion. How MLR neurons recruit downstream vsx2+ (V2a) reticulospinal neurons (RSNs) is poorly understood. Here, to overcome this challenge, we uncovered the locus of MLR in transparent larval zebrafish and show that the MLR locus is distinct from the nucleus of the medial longitudinal fasciculus. MLR stimulations reliably elicit forward locomotion of controlled duration and frequency. MLR neurons recruit V2a RSNs via projections onto somata in pontine and retropontine areas, and onto dendrites in the medulla. High-speed volumetric imaging of neuronal activity reveals that strongly MLR-coupled RSNs are active for steering or forward swimming, whereas weakly MLR-coupled medullary RSNs encode the duration and frequency of the forward component. Our study demonstrates how MLR neurons recruit specific V2a RSNs to control the kinematics of forward locomotion and suggests conservation of the motor functions of V2a RSNs across vertebrates.


Subject(s)
Mesencephalon , Zebrafish , Animals , Larva , Mesencephalon/physiology , Locomotion/physiology , Neurons/physiology , Spinal Cord/physiology , Electric Stimulation
3.
Maxillofac Plast Reconstr Surg ; 45(1): 28, 2023 Aug 25.
Article in English | MEDLINE | ID: mdl-37624428

ABSTRACT

BACKGROUND: Port wine stains slowly grow thicker over time, nodules appear on the surface, and the color slowly deepens from pink to purple. Even after laser treatment, some port wine stains will recur and slowly grow, and the erythema appears again. The purpose of this study was to investigate the effectiveness of bleomycin in combination with triamcinolone acetonide in the treatment of inhibiting the proliferation and recurrence of port wine stains. RESULTS: Histopathological change: Before treatment, dense capillaries were distributed within the lesion, and blood fills the lumen. Lack of normal skin structure: After bleomycin and triamcinolone acetonide injection, the number of capillaries was significantly reduced, and fibrosis occurred in tissues. Changes in facial morphology: After treatment, the port wine stains became thinner, the asymmetry of the face was effectively improved, and the appearance have been significantly improved. After 5 years of follow-up, there were no recurrent cases. CONCLUSION: Bleomycin and triamcinolone acetonide injection can effectively inhibit the proliferation of port wine stains and prevent port wine stains from recurring after treatment.

4.
Skin Res Technol ; 29(6): e13389, 2023 Jun.
Article in English | MEDLINE | ID: mdl-37357650

ABSTRACT

BACKGROUND: Keloids and hypertrophic scars frustrate patients by the deformity of appearance and organ dysfunction. Many modalities had been tried in clinic practice, but the results are unsatisfied. OBJECTIVE: We retrospectively analysed the combined application of bleomycin and triamcinolone for the treatment of keloids and hypertrophic scars. METHODS: The combination of bleomycin and triamcin acetonide was applied to the treatment of keloids and hypertrophic scars, 86 cases accepted the treatment. Follow-up 2-5 years after treatment. RESULTS: (1) The pain of scars and itching symptoms have basically subsided through treatment. (2) After drug injection treatment, the keloid began to shrink, some of the keloids disappeared. (3) Small keloids did not recur after treatment. Large keloids had local recurrence after treatment. When further treatment was given, the recurrence disappeared. CONCLUSION: The combined application of bleomycin and triamcin acetonide can effectively cure keloids and hypertrophic scars.


Subject(s)
Cicatrix, Hypertrophic , Keloid , Humans , Keloid/drug therapy , Keloid/pathology , Cicatrix, Hypertrophic/drug therapy , Cicatrix, Hypertrophic/pathology , Bleomycin/therapeutic use , Triamcinolone/therapeutic use , Retrospective Studies , Injections, Intralesional , Treatment Outcome
5.
Sichuan Da Xue Xue Bao Yi Xue Ban ; 54(3): 602-607, 2023 May.
Article in Chinese | MEDLINE | ID: mdl-37248591

ABSTRACT

Objective: To analyze the detection rate, in vitro susceptibility to antibiotics, and carbapenemase types of carbapenem-resistant Enterobacteriaceae (CRE) strains in the clinical samples of a hospital and to provide support for the prevention, control and treatment of CRE-related infections. Methods: Clinical specimens were examined according to the operating procedures of bacteriological tests. Species identification and in vitro drug susceptibility testing were performed on the isolated strains. Carbapenemase inhibitor enhancement testing, which combined the use of 3-aminobenzeneboronic acid and ethylenediaminetetraacetic acid, was conducted to identify the types of carbapenemase in the CRE strains. Results: In 2021, 2215 CRE strains were isolated from 157196 clinical samples collected in this hospital, presenting a detection rate of 1.4% (2215/157196). A total of 1134 non-repetitive strains of CRE were isolated from 903 patients. The main sources of samples were respiratory tract (494/1134, 43.6%), secretion (191/1134, 16.8%) and blood (173/1134, 15.3%) samples. The cases with the same CRE strain isolated from the samples of two, three and four sites accounted for 12.5%, 4.9%, and 1.1%, respectively. The most common species was Klebsiella pneumoniae (883/1134, 77.9%), followed by Enterobacter cloacae complex (107/1134, 9.4%) and Escherichia coli (96/1134, 8.5%). The rates of resistance to polymyxin B and tigecycline of different species of CRE strains were not significantly different ( P<0.05). Serine carbapenemase-producing strains, metallo-ß-lactamase-producing strains, and those producing both enzymes accounted for 82.6% (809/979), 17.2% (168/979), and 0.2% (2/979), respectively. Conclusion: CRE strains are frequently isolated from samples collected from the respiratory tract, secretion, and blood. The most common strain is serine carbapenemase-producing K. pneumoniae, which has a high resistance rate to various antimicrobial drugs, and risk factors of its associated infections deserve more attention.


Subject(s)
Carbapenem-Resistant Enterobacteriaceae , Enterobacteriaceae Infections , Mycobacterium tuberculosis , Humans , Enterobacteriaceae Infections/epidemiology , Enterobacteriaceae Infections/drug therapy , Microbial Sensitivity Tests , Anti-Bacterial Agents/pharmacology , Anti-Bacterial Agents/therapeutic use , Bacterial Proteins , beta-Lactamases , Klebsiella pneumoniae , Escherichia coli , Hospitals
6.
Sichuan Da Xue Xue Bao Yi Xue Ban ; 54(3): 667-672, 2023 May.
Article in Chinese | MEDLINE | ID: mdl-37248603

ABSTRACT

Objective: To compare the consistency and accuracy of a rapid test method and a traditional test method for pathogen identification, antimicrobial susceptibility and carbapenemase type identification of positive blood culture samples. Methods: A total of 51 positive blood culture samples of bloodstream infection (BSI) were collected between March 2022 and May 2022. All samples were found to be "positive for Gram-negative bacilli" according to the blood smear results. The rapid method was adopted to perform rapid antimicrobial susceptibility test (RAST) and analysis of the positive blood culture samples. According to the RAST result interpretation standards, NG-Test® CARBA 5 was used for rapid carbapenemase detection of the imipenem-resistant strains and the results were confirmed by PCR. In addition, mass spectrometry, VITEK 2 Compact drug sensitivity analysis, and carbapenemase type identification were performed with the colonies cultured with positive samples according to the traditional method. Results: In the identification of bacteria, the rapid method and the traditional method had 100% consistency rate in the identification results of Escherichia coli, Klebsiella pneumoniae, Pseudomonas aeruginosa, and Acinetobacter baumannii. In the antimicrobial susceptibility test, the consistency rate between the results of the two methods was high and the consistency rate for results for susceptibility to imipenem was 100%. In the identification of carbapenemase type, 18 serinase-producing strains and 3 metal-ß-lactamase-producing strains of Enterobacterales were detected by the traditional method. With the rapid method, 18 Klebsiella pneumoniae carbapenemase (KPC)-producing strains, 2 New Delhi metallo-betalactamase (NDM)-producing strains, and 1 imipenem enzyme (IMP)-producing strain were identified in the blood culture samples by using a testing kit. Compared with the PCR results, the sensitivity and specificity of the rapid test for determining carbapenemase types were 100%. In this study, we investigated a rapid method for bacteria and carbapenemase type identification of positive blood culture specimens and found that the turnaround time (TAT) of the rapid method was reduced by 1.94 days on average in comparison with the TAT of the traditional method. Conclusion: The rapid method established in the study can effectively shorten the TAT for pathogenic microorganism identification and antimicrobial susceptibility test of blood culture samples, and the joint report of colloidal gold carbapenemase type identification results can provide a reference for clinicians to use antibiotics appropriately and accurately manage multi-drug resistant bacterial infections.


Subject(s)
Carbapenems , Sepsis , Humans , Carbapenems/pharmacology , beta-Lactamases , Bacterial Proteins/genetics , Anti-Bacterial Agents/pharmacology , Imipenem/pharmacology , Klebsiella pneumoniae , Escherichia coli , Microbial Sensitivity Tests
7.
Photobiomodul Photomed Laser Surg ; 41(4): 182-188, 2023 Apr.
Article in English | MEDLINE | ID: mdl-36976829

ABSTRACT

Objective: To conduct a retrospective analysis of the therapeutic effects of laser ablation in maxillofacial applications. Methods: Laser ablation was performed in 97 patients, 27 cases of facial fat accumulation, 40 cases of sagging caused by facial aging, 16 cases of soft tissue asymmetry, and 14 cases of facial hyperplasia. Laser parameters were as follows: lipolysis 8 W, 90-120 J/cm2, and the ablation of hyperplastic tissue 9-10 W, 150-200 J/cm2. The subcutaneous thickness, facial morphology, patient's self-evaluation, and satisfaction were evaluated. Results: Laser ablation reduced the subcutaneous thickness, and tightened loose skin. The patient's appearance looked younger and more beautiful. The curves of the facial contours were more of Oriental beauty. The hyperplasia site became thinner, and the facial asymmetry was corrected or significantly improved. Most of the patients were satisfied with the outcome. There were no serious complications besides swelling. Conclusions: Laser ablation can effectively treat thickening and relaxation of maxillofacial soft tissues. With low risk, few complications, and quick recovery, it can be used as a first-line treatment for maxillofacial soft tissue plastic surgery.


Subject(s)
Face , Laser Therapy , Humans , Retrospective Studies , Hyperplasia , Face/surgery , Lasers
8.
Dev Biol ; 496: 36-51, 2023 04.
Article in English | MEDLINE | ID: mdl-36736605

ABSTRACT

Urp1 and Urp2 are two neuropeptides, members of the Urotensin 2 family, that have been recently involved in the control of body axis morphogenesis in zebrafish. They are produced by a population of sensory spinal neurons, called cerebrospinal fluid contacting neurons (CSF-cNs), under the control of signals relying on the Reissner fiber, an extracellular thread bathing in the CSF. Here, we have investigated further the function of Urp1 and Urp2 (Urp1/2) in body axis formation and maintenance. We showed that urp1;urp2 double mutants develop strong body axis defects during larval growth, revealing the redundancy between the two neuropeptides. These defects were similar to those previously reported in uts2r3 mutants. We observed that this phenotype is not associated with congenital defects in vertebrae formation, but by using specific inhibitors, we found that, at least in the embryo, the action of Urp1/2 signaling depends on myosin II contraction. Finally, we provide evidence that while the Urp1/2 signaling is functioning during larval growth, it is dispensable for embryonic development. Taken together, our results show that Urp1/2 signaling is required in larvae to promote correct vertebral body axis, most likely by regulating muscle tone.


Subject(s)
Neuropeptides , Zebrafish , Animals , Larva , Spine , Morphogenesis , Zebrafish Proteins
9.
Curr Biol ; 33(5): 940-956.e10, 2023 03 13.
Article in English | MEDLINE | ID: mdl-36791723

ABSTRACT

The pathogenic bacterium Streptococcus pneumoniae (S. pneumoniae) can invade the cerebrospinal fluid (CSF) and cause meningitis with devastating consequences. Whether and how sensory cells in the central nervous system (CNS) become activated during bacterial infection, as recently reported for the peripheral nervous system, is not known. We find that CSF infection by S. pneumoniae in larval zebrafish leads to changes in posture and behavior that are reminiscent of pneumococcal meningitis, including dorsal arching and epileptic-like seizures. We show that during infection, invasion of the CSF by S. pneumoniae massively activates in vivo sensory neurons contacting the CSF, referred to as "CSF-cNs" and previously shown to detect spinal curvature and to control posture, locomotion, and spine morphogenesis. We find that CSF-cNs express orphan bitter taste receptors and respond in vitro to bacterial supernatant and metabolites via massive calcium transients, similar to the ones observed in vivo during infection. Upon infection, CSF-cNs also upregulate the expression of numerous cytokines and complement components involved in innate immunity. Accordingly, we demonstrate, using cell-specific ablation and blockade of neurotransmission, that CSF-cN neurosecretion enhances survival of the host during S. pneumoniae infection. Finally, we show that CSF-cNs respond to various pathogenic bacteria causing meningitis in humans, as well as to the supernatant of cells infected by a neurotropic virus. Altogether, our work uncovers that central sensory neurons in the spinal cord, previously involved in postural control and morphogenesis, contribute as well to host survival by responding to the invasion of the CSF by pathogenic bacteria during meningitis.


Subject(s)
Central Nervous System Infections , Streptococcus pneumoniae , Animals , Humans , Streptococcus pneumoniae/physiology , Zebrafish/physiology , Central Nervous System , Sensory Receptor Cells/physiology
10.
J Environ Manage ; 325(Pt B): 116557, 2023 Jan 01.
Article in English | MEDLINE | ID: mdl-36308952

ABSTRACT

The impact of climate change on nearshore coastal water quality and its interaction with pollution prevention efforts (e.g., the development of green and gray water infrastructure) still lack systematic investigation. This study performed a holistic analysis of the impact of climate change on the salinity and concentrations of total nitrogen (TN), total phosphorus (TP) and chlorophyll a (Chl.a) in Shenzhen Bay between Shenzhen and Hong Kong, the two most developed megacities in South China, based on three-dimensional hydrodynamic and water quality modeling. The major study findings were as follows. First, Chl.a was the most sensitive parameter, and its bay-wide average concentration in 2100 was predicted to be approximately 13% and 46% higher than those in 2015 under mild and rapid climate change scenarios, respectively. Second, sea level rise was found to be a major driver of all four water quality parameters, while temperature and radiation mainly influenced Chl.a and precipitation mainly influenced nutrients. Third, water quality responses to climate change were highly heterogeneous over the bay. Even under a mild climate change scenario, the highest location-specific changes (2100 vs. 2015) in salinity and TN, TP and Chl.a concentrations were projected to be approximately 21%, 19%, 25%, and 65%, respectively. Fourth, changes in seasonal variation due to climate change may lead to an enhanced ecological risk of algal blooms. Finally, the effect of reducing TN and TP concentrations by proposed water infrastructure development was found to be significantly weakened (nearly 40% and 20% for TN and TP, respectively, under a mild climate change scenario), while the negative effect (i.e., increase in the Chl.a concentration) was notably accelerated. Regional cooperation is critical for protecting the water quality of the bay, particularly under climate change. The insights obtained in this study are applicable to other coastal water zones around the world with similar socioeconomic backgrounds and climatic conditions.


Subject(s)
Climate Change , Water Quality , Chlorophyll A/analysis , Rivers/chemistry , Environmental Monitoring/methods , Chlorophyll , Eutrophication , Phosphorus/analysis , Nitrogen/analysis , China
11.
Acta Pharmaceutica Sinica B ; (6): 852-862, 2023.
Article in English | WPRIM (Western Pacific) | ID: wpr-971722

ABSTRACT

Cell membrane camouflaged nanoparticles have been widely used in the field of drug leads discovery attribute to their unique biointerface targeting function. However, random orientation of cell membrane coating does not guarantee effective and appropriate binding of drugs to specific sites, especially when applied to intracellular regions of transmembrane proteins. Bioorthogonal reactions have been rapidly developed as a specific and reliable method for cell membrane functionalization without disturbing living biosystem. Herein, inside-out cell membrane camouflaged magnetic nanoparticles (IOCMMNPs) were accurately constructed via bioorthogonal reactions to screen small molecule inhibitors targeting intracellular tyrosine kinase domain of vascular endothelial growth factor recptor-2. Azide functionalized cell membrane acted as a platform for specific covalently coupling with alkynyl functionalized magnetic Fe3O4 nanoparticles to prepare IOCMMNPs. The inside-out orientation of cell membrane was successfully verified by immunogold staining and sialic acid quantification assay. Ultimately, two compounds, senkyunolide A and ligustilidel, were successfully captured, and their potential antiproliferative activities were further testified by pharmacological experiments. It is anticipated that the proposed inside-out cell membrane coating strategy endows tremendous versatility for engineering cell membrane camouflaged nanoparticles and promotes the development of drug leads discovery platforms.

12.
Article in Chinese | WPRIM (Western Pacific) | ID: wpr-985663

ABSTRACT

Objective: To explore the key points for preventing and reducing severe pre-eclampsia (SPE) and its severe complications in the tertiary medical referral system of a second-tier city by analyzing the clinical characteristics of SPE. Methods: The clinical data of 341 patients with SPE who terminated pregnancy in Women and Children's Hospital, School of Medicine, Xiamen University, from January 1, 2020 to December 31, 2022 were retrospectively analyzed, and the pre-eclampsia (PE) risk factors, clinical characteristics and severe complications of SPE between the patients referred from primary hospitals (referral group) and the patients received regular prenatal care in the tertiary referral center (central group) were compared, as well as the influence of the referral timing on the maternal and perinatal outcomes. Results: Among the 341 cases of SPE, 92 cases were in the referral group and 249 cases were in the central group. (1) Analysis of PE risk factors: there was no statistical difference in the proportion of risk factors of PE between these two groups [75.0% (69/92) vs 71.9% (179/249); χ2=0.328, P=0.567]. (2) Analysis of clinical features: the gestational ages at the PE early warning factors onset, at the PE first symptom onset and at SPE diagnosed, pregnancy terminated and onset of SPE severe complications in the referral group were significantly earlier than those in the central group (all P<0.05), the proportions of terminating pregnancy before 32 weeks of gestation, between 32 and 34 weeks of gestation, intensive care unit (ICU), neonatal ICU hospitalization and fetal growth restriction in single pregnancies were higher than those in the central group, while the live birth rate was lower than that in the central group (all P<0.05). (3) Analysis of SPE severe complications: the rates of SPE severe complications in the referral group was higher than that in the central group [28.3% (26/92) vs 13.7% (34/249); χ2=9.885, P=0.002]. Among them, the rates of placental abruption [7.6% (7/92) vs 2.8% (7/249); χ2=3.927, P=0.048] and still birth [6.5% (6/92) vs 0.4% (1/249); χ2=9.656, P=0.002] in the referral group were significantly higher than those in the central group. (4) Analysis of referral timings: the timings included referral after onset of SPE severe complications (9.8%, 9/92), referral after SPE diagnosed (63.0%, 58/92), referral after detection of SPE early warning signs (20.7%, 19/92) and referral after detection of PE risk factors (6.5%, 6/92). The gestational ages at SPE diagnosed and pregnancy terminated in group of referral after onset of SPE severe complications and group of referral after SPE diagnosed were significantly earlier than those in group of referral after detection of PE early warning signs and group of referral after detection of PE risk factors (P<0.05). The earlier the referral, the higher the live birth rates (P<0.05). Conclusions: The tertiary referral center of the second-tier city plays an important role in reducing the maternal and perinatal damage of PE. The timing of referral in primary medical institutions is the key point of reducing the occurrence of SPE severe complications and maternal, perinatal damage of PE. It is necessary for medical institutions of all levels in all regions to improve the ability of early identification and early intervention for PE, to enhance the awareness of SPE and its severe complications prevention and control. Primary medical institutions should especially pay attention to raise the consciousness of PE risk factors and early warning signs, and to improve the ability of PE risk factors and early warning signs screening.


Subject(s)
Infant, Newborn , Child , Pregnancy , Female , Humans , Pre-Eclampsia/epidemiology , Retrospective Studies , Tertiary Care Centers , Placenta , Prenatal Care , Gestational Age , Pregnancy Outcome/epidemiology
13.
ACS Appl Mater Interfaces ; 14(49): 54830-54839, 2022 Dec 14.
Article in English | MEDLINE | ID: mdl-36464840

ABSTRACT

Sluggish multiphase reaction kinetics and severe shuttle effect of lithium polysulfides (LiPSs) are two major challenges facing lithium-sulfur (Li-S) batteries, which largely prevent them from becoming a reality. Herein, a shell with catalytic function for sulfur cathode is in situ constructed through an ingenious electrochemical oxidative polymerization strategy by introducing hexafluorocyclotriphosphazene (HFPN) as additives, which suppresses the shuttle effect and promotes efficient sulfur conversion. The shell with abundant heteroatoms effectively confines polysulfides to the cathode matrix by chemically interacting with them to eliminate capacity degradation. Moreover, the shell exhibits high catalytic activities, which turns Li2S(2) into an activated state and facilitates its dissociation. The functionalized shell substantially advances the performance of Li-S batteries, thanks to efficient lithium-ion transportation and abundant adsorption-catalytic sites. As a result, Li-S batteries demonstrate superb resistance to self-discharge, ultrastable cycle performance, and greatly enhanced rate capability. Impressively, the batteries show an ultralow capacity decay rate of 0.034% throughout 700 cycles at 2C. They deliver a capacity of 517 mAh g-1 even at a 4C rate, exhibiting relieved electrochemical polarization and excellent sulfur utilization. This work provides an ingenious strategy to construct adsorption-catalytic nets for next-generation Li-S batteries with enhanced lifespan and electrochemical performance.

14.
Light Sci Appl ; 11(1): 329, 2022 Nov 22.
Article in English | MEDLINE | ID: mdl-36414615

ABSTRACT

The solar X-ray and Extreme Ultraviolet Imager (X-EUVI), developed by the Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences (CIOMP), is the first space-based solar X-ray and Extreme ultraviolet (EUV) imager of China loaded on the Fengyun-3E (FY-3E) satellite supported by the China Meteorological Administration (CMA) for solar observation. Since started work on July 11, 2021, X-EUVI has obtained many solar images. The instrument employs an innovative dual-band design to monitor a much larger temperature range on the Sun, which covers 0.6-8.0 nm in the X-ray region with six channels and 19.5 nm in the EUV region. X-EUVI has a field of view of 42', an angular resolution of 2.5″ per pixel in the EUV band and an angular resolution of 4.1″ per pixel in the X-ray band. The instrument also includes an X-ray and EUV irradiance sensor (X-EUVS) with the same bands as its imaging optics, which measures the solar irradiance and regularly calibrates the solar images. The radiometric calibration of X-EUVS on the ground has been completed, with a calibration accuracy of 12%. X-EUVI is loaded on the FY-3E satellite and rotates relative to the Sun at a uniform rate. Flat-field calibration is conducted by utilizing successive rotation solar images. The agreement between preliminarily processed X-EUVI images and SDO/AIA and Hinode/XRT images indicates that X-EUVI and the data processing algorithm operate properly and that the data from X-EUVI can be applied to the space weather forecast system of CMA and scientific investigations on solar activity.

15.
ACS Appl Mater Interfaces ; 14(40): 45414-45422, 2022 Oct 12.
Article in English | MEDLINE | ID: mdl-36183261

ABSTRACT

Owning to its various advantages, the lithium-sulfur battery is one of the research hot spots for new energy storage systems. Diverse hollow structures with specific morphologies have been used as the sulfur host materials to adsorb or/and catalyze the polysulfides, and can in particular concurrently inhibit the volume expansion during electrochemical processes in lithium-sulfur batteries. However, hollow space with a large volume will restrict the performance of the cell under high sulfur area loading, which is a very important indicator for the practical applications of the lithium-sulfur battery. Here, we report a nano thin cage cobalt acid zinc (ZnCo2O4) with limited hollow space as the cathode catalyst for lithium-sulfur batteries, which greatly reduces the electrode volume occupied by the hollow structure. The hollow volume of these thin cages is much smaller than those of the normally reported hollow materials in the literatue. The electrochemical performance of lithium-sulfur batteries with ZnCo2O4 thin cages could greatly improve due to the unique structure and the synergistic adsorption/catalytic effect of Zn/Co sites, especially at an ultrahigh S area load. Under a high S loading of 8 mg cm-2, the cell could keep a reversible capacity of 600 mAh g-1 after 500 cycles. Even at a sulfur loading of 10 mg cm-2, the cell still releases a discharge capacity of 1000 mAh g-1 which is equivalent of an area capacity of 10 mAh cm-2. This work provides a feasible way to develop lithium sulfur batteries with a high area sulfur load. This idea provides a possible solution to develop a Li-S battery at high area S loading and move one step closer to the practical applications.

16.
Nutrients ; 14(19)2022 Sep 28.
Article in English | MEDLINE | ID: mdl-36235685

ABSTRACT

We previously found that neurocritically ill patients are prone to refeeding syndrome (RFS), a potentially life-threatening complication. However, there is no unified or validated consensus on the screening tool for RFS so far. We aimed to validate and compare the performance of four screening tools for RFS in neurocritically ill patients. We conducted a single-center, observational, retrospective cohort study among neurocritically ill adult patients who were admitted to the neurocritical care unit (NCU), and who received enteral nutrition for 72 h or longer. They were scored on the Short Nutritional Assessment Questionnaire (SNAQ), the Global Leadership Initiative on Malnutrition (GLIM), the modified criteria of the Britain's National Institute for Health and Care Excellence (mNICE), and ASPEN Consensus Recommendations for Refeeding Syndrome (ASPEN) scales to predict RFS risk via admission data. The performance of each scale in predicting RFS was evaluated. Logistic regression analysis was used to identify the independent risk factors for RFS, and they were added to the above scales to strengthen the identification of RFS. Of the 478 patients included, 84 (17.57%) developed RFS. The sensitivity of the SNAQ and GLIM was only 20.2% (12.6-30.7%), although they had excellent specificities of 84.8% (80.8-88.1%) and 86.0% (82.1-89.2%), respectively; mNICE predicted RFS with a sensitivity of 48.8% (37.8-59.9%) and a specificity of 65.0% (60.0-69.9%); ASPEN had the highest Youden index, with a sensitivity and specificity of 53.6% (42.4-64.4%) and 64.7% (59.8-69.4%), respectively. The Area Under the receiver operating characteristic Curves (AUC) of SNAQ, GLIM, mNICE, and ASPEN to predict RFS were 0.516 (0.470-0.561), 0.533 (0.487-0.579), 0.568 (0.522-0.613), and 0.597 (0.551-0.641), respectively. We identified age, Acute Physiology and Chronic Health Evaluation II (APACHE II), Sequential Organ Failure Assessment (SOFA), and Glasgow Coma Scale (GCS) score as independent risk factors of RFS, and the combination of GCS and age can improve the AUC of ASPEN to 0.664 (0.620-0.706) for predicting RFS. SNAQ, GLIM, mNICE, and ASPEN do not perform well in identifying neurocritically ill patients at high risk of RFS, although ASPEN appears to have relatively a good validity among them. Combining GCS and age with ASPEN slightly improves RFS recognition, but it still leaves a lot of room for improvement.


Subject(s)
Malnutrition , Refeeding Syndrome , Adult , Humans , Leadership , Malnutrition/complications , Nutrition Assessment , Nutritional Status , Refeeding Syndrome/diagnosis , Refeeding Syndrome/etiology , Retrospective Studies , Surveys and Questionnaires
17.
Int J Surg Case Rep ; 97: 107411, 2022 Aug.
Article in English | MEDLINE | ID: mdl-35863286

ABSTRACT

Cervical-thoracic-mediastinal LVMs in infants is rare, and very difficult to be cured because of life-threatening risk and recurrence. An infant with cervical-thoracic-mediastinal LVMs was treated in our department. Left neck was thick at birth, usually depressed, lazy and inactive. He showed dyspnea after about 3 min of automatic activity, with increased wheezing and open-mouth breathing, squatting after walking no more than 6 steps. There were masses and bulges in the left submandibular area and the left neck. The left cervical root and left clavicle were full. LVMs was diagnosed, and treated by sclerotherapy with bleomycin and triamcinolone acetonidein in a phased and step-by-step manner. The thoracic LVMs and mediastinal LVMs were cannulated under general anesthesia B-ultrasound guidance with an indwelling catheter; drugs were administered via the catheter. After several sessions, the submandibular LVMs and cervical LVMs were completely regressed, the thoracic LVMs and mediastinal LVMs were approximately 95 % regressed. Follow-up of 11 years, there was no recurrence; the lungs, thoraxes, and spines were well developed and free to move. Surgical resection of thoracic-mediastinal LVMs has high life-threatening risk, especially in children, and can't remove all of the LVMs. Comparing with surgical resection, sclerotherapy has the advantages of minimally invasive, low risk, conveniently repeated treatment, obvious curative effect. Therefore, cervical-thoracic-mediastinal LVM in infants can be effectively cured by sclerotherapy; the sclerotherapy has no obvious side effect on the development.

18.
Chemosphere ; 301: 134632, 2022 Aug.
Article in English | MEDLINE | ID: mdl-35439487

ABSTRACT

Parabens are widely added to food, cosmetics, and medicines as preservatives and are typical contaminants of pharmaceuticals and personal care products (PPCPs). However, their fate and transport in urban watersheds remain largely unexplored. This study investigated the role of road runoff as a critical nonpoint source of parabens and their metabolites in urban rivers based on 73 multimedia (road runoff and dust in different urban land uses, wastewater, stormwater discharge and river water) samples collected from a highly urbanized drainage area. Seven parabens and five metabolites were detected in the road runoff, with mean concentrations of ∑parabens and ∑metabolites equal to 47.5 ng/L and 4710 ng/L, respectively. The concentrations in road runoff were comparable to those in treated wastewater and river water and showed a land use pattern of residential > industrial > commercial. A first flush effect of the contaminants was observed in a heavy rainfall event with an antecedent dry period. In general, the population-based and area-based emission intensities of ∑parabens and ∑metabolites in road runoff were one order of magnitude higher than those in wastewater effluent during the rainfall events. This study provides quantitative evidence that road runoff can be a major pollution source of parabens and their metabolites in rapidly growing cities during the wet season and calls for the integrated management of nonpoint sources to prevent urban river contamination by typical PPCPs.


Subject(s)
Cosmetics , Water Pollutants, Chemical , China , Cities , Environmental Monitoring , Parabens , Rain , Rivers , Wastewater , Water , Water Movements , Water Pollutants, Chemical/analysis
19.
Med Mycol ; 60(4)2022 Apr 09.
Article in English | MEDLINE | ID: mdl-35362524

ABSTRACT

Cryptococcus is an opportunistic pathogenic fungus and is the major cause of fungal meningitis. The cryptococcal antigen (CrAg) lateral flow assay (LFA) is an immunochromatographic test system that has simplified diagnosis as a point-of-care test. In this study, we evaluated the diagnostic performance of Cryptococcal capsular polysaccharide detection FungiXpert (Genobio Pharmaceutical, Tianjin, China) using serum and cerebrospinal fluid (CSF) samples for the diagnosis of cryptococcosis and investigated the cross-reaction of the assays to pathogenic fungi and bacterium by comparing it to the U.S. Food and Drug Administration (US FDA)-approved IMMY CrAg LFA. Eighty CSF and 119 serum/plasma samples from 158 patients were retrospectively collected to test for qualitative or semi-quantitative detection of CrAg. Cross-reaction of the assays was tested using 28 fungi and 1 bacterium. Compared to IMMY CrAg LFA, the FungiXpert LFA demonstrated 99.1% sensitivity and 98.9% specificity in the qualitative test. In the 96 semi-quantitative CrAg assay results, 39 (40.6%) test titers of FungiXpert LFA were 1-2 dilutions higher than those of IMMY CrAg LFA. The Intraclass Correlation Coefficient of the Semi-quantitative results of CrAg titer tests via the two assays was 0.976. Similar to IMMY CrAg LFA, FungiXpert LFA showed cross-reactivity with Trichosporon asahii. Compared with the IMMY CrAg LFA, the FungiXpert LFA showed an equal, yet, excellent performance. However, it is important to note that these two assays have potential cross-reactivity to T. asahii when diagnosing patients. FungiXpert LFA is a rapid screening method for the effective and practical diagnosis and treatment of cryptococcosis. LAY SUMMARY: The FungiXpert LFA was developed to diagnose fungal meningitis caused by Cryptococcus yeasts, by using serum or cerebrospinal fluid. It was compared to an existing lateral flow assay (LFA). The FungiXpert LFA performed well in qualitative and semi-quantitative tests.


Subject(s)
Cryptococcosis , Cryptococcus , HIV Infections , Meningitis, Cryptococcal , Meningitis, Fungal , Animals , Antigens, Fungal , Cryptococcosis/diagnosis , Cryptococcosis/veterinary , HIV Infections/veterinary , Meningitis, Cryptococcal/diagnosis , Meningitis, Cryptococcal/veterinary , Meningitis, Fungal/veterinary , Polysaccharides , Retrospective Studies
20.
Curr Alzheimer Res ; 19(3): 246-263, 2022.
Article in English | MEDLINE | ID: mdl-35422218

ABSTRACT

BACKGROUND: Alzheimer's disease (AD) is a lethal, progressive neurodegenerative disorder that has been linked to a deficiency of the neurotransmitter acetylcholine. Currently, many acetylcholinesterase inhibitors, such as donepezil, are widely used for the treatment of AD. On the other hand, the efficacy of long-term donepezil use is limited. SIP3, a mixture of three herbal extracts from Santalum album, Illicium verum, and Polygala tenuifolia, is a new formula derived from traditional Korean herbal medicine. OBJECTIVE: We assessed the synergistic effect of SIP3 and donepezil co-treatment on symptoms of AD using APP/PS1 transgenic mice. METHODS: In this study, a Drosophila AD model and SH-SY5Y clles were used to assess the toxicity of SIP3, and APPswe/PS1dE9 (APP/PS1) transgenic mice were used to evaluate the cognitive-behavioral and depression-like behavior effect of SIP3 and donepezil co-treatment on symptoms of AD. The cerebral cortex or hippocampus transcriptomes were analyzed by RNA sequencing and miRNA to investigate the molecular and cellular mechanisms underlying the positive effects of SIP3 on AD. RESULTS: In the passive avoidance test (PAT) and Morris water maze (MWM) test, the combination of SIP3 and donepezil improved the learning capabilities and memory of APP/PS1 mice in the mid-stage of AD compared to the group treated with donepezil only. In addition, co-administration of SIP3 and donepezil effectively reduced the depression-like behavior in the forced swimming and tail suspension tests. Furthermore, RNA sequencing of the cerebral cortex transcriptome and miRNA of the hippocampus showed that the gene expression profiles after a low dose SIP3 co-treatment were more similar to those of the normal phenotype mice than those obtained after the donepezil treatment alone. The Gene Ontology (GO) and the Kyoto Encyclopedia of Genes and Genomes (KEGG) pathways, showed that differentially expressed genes were involved in the locomotor behavior and neuroactive ligand-receptor interactions. These results suggest that a co-treatment of low dose SIP3 and donepezil improves impaired learning, memory, and depression in the mid-stage of AD in mice. CONCLUSION: Co-treatment of low dose SIP3 and donepezil improves impaired learning, memory, and depression in the mid-stage of AD in mice.


Subject(s)
Alzheimer Disease , MicroRNAs , Neuroblastoma , Acetylcholinesterase/metabolism , Alzheimer Disease/complications , Alzheimer Disease/drug therapy , Alzheimer Disease/genetics , Amyloid beta-Protein Precursor/genetics , Amyloid beta-Protein Precursor/metabolism , Animals , Depression , Disease Models, Animal , Donepezil/pharmacology , Herbal Medicine , Hippocampus/metabolism , Humans , Maze Learning , Mice , Mice, Inbred C57BL , Mice, Transgenic
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