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1.
Carbohydr Res ; 541: 109168, 2024 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-38833821

RESUMO

The physicochemical properties and biological activities of polysaccharides depend on their structures. Monosaccharide composition analysis is indispensable for the structural characterization of polysaccharides and is helpful in the quality control of polysaccharide preparation. Here, using a model mixture and tamarind seed polysaccharide as examples, we demonstrated that a quantitative 2D NMR method, gsHSQCi (three gradient-selective Heteronuclear Single Quantum Coherence spectra acquired with incremented repetition times, i = 1, 2, 3) can directly quantify a variety of monosaccharides in solution with adequate precision and accuracy, requiring no derivatization, postprocessing steps and column separation. Both anomeric and non-anomeric signals of monosaccharides can be utilized for content determination. More accurate quantification of fructose in a mixture containing nine monosaccharides is obtained, which is difficult to achieve by quantitative 1D 1HNMR and the common PMP-HPLC method (high-performance liquid chromatography through pre-column derivatization with 1-phenyl-3-methyl-5-pyrazolone) due to the peak overlapping and the poor derivatization efficiency, respectively. The results also revealed that Na[Fe(EDTA)] can serve as a proper relaxation-enhancing agent for saccharide samples to save experimental time. We expect that this approach can be applied as an alternative to analyzing the monosaccharide composition and be helpful in interpreting the structure of polysaccharides.


Assuntos
Monossacarídeos , Monossacarídeos/química , Monossacarídeos/análise , Espectroscopia de Ressonância Magnética , Polissacarídeos/química , Polissacarídeos/análise
2.
Diabetes Metab Syndr ; 18(5): 103025, 2024 May 07.
Artigo em Inglês | MEDLINE | ID: mdl-38851022

RESUMO

AIM: High fasting plasma glucose (HFPG) is a key risk factor for cardiovascular disease (CVD). Few studies have evaluated the CVD burden attributable to HFPG globally. It is urgent to investigate the current epidemiological pattern and past trends of CVD attributable to HFPG. METHODS: We used the Global Burden of Disease Study (GBD) 2019 to describe the CVD burden attributable to HFPG in 2019 and evaluate temporal trends between 1990 and 2019. RESULTS: Global Disability-Adjusted Life Years (DALYs) cases and death cases of HFPG-related CVD were approximately 72,591,163 and 3,763,298 in 2019, with an increase of 107.4 % and 114.6 % compared with 1990, respectively. Despite the increases, the age-standardized DALYs rate (ASDAR) and age-standardized death rate (ASDR) of HFPG-related CVD contributed to 895.2 per 100,000 people and 48.4 per 100,000 people in 2019, with an estimated annual percentage change (EAPC) of -0.22 and -0.31, respectively, from 1990. The highest ASDAR and ASDR of HFPG-related CVD were in 2019 observed in the low-middle SDI (Socio-demographic Index) and middle-SDI regions. Low SDI and some low-middle SDI regions showed an increase in ASDAR and ASDR of HFPG-related CVD from 1990 to 2019. Males are more affected by HFPG-related CVD than females across all years. The CVD burden attributable to HFPG in the elderly are higher than those in the young in 2019. The main causes of the global CVD burden attributable to HFPG in 2019 were ischemic heart disease, stroke, and peripheral arterial disease. CONCLUSION: The CVD burden attributable to HFPG remains a serious public health challenge threatening human health worldwide. It is necessary to develop more targeted and specific strategies to reduce CVD burden attributable to HFPG, especially in males, elderly, and lower SDI regions.

3.
mSystems ; : e0060024, 2024 Jun 18.
Artigo em Inglês | MEDLINE | ID: mdl-38888356

RESUMO

Locusta migratoria is an important phytophagous pest, and its gut microbial communities play an important role in cellulose degradation. In this study, the gut microbial and cellulose digestibility dynamics of Locusta migratoria were jointly analyzed using high-throughput sequencing and anthrone colorimetry. The results showed that the gut microbial diversity and cellulose digestibility across life stages were dynamically changing. The species richness of gut bacteria was significantly higher in eggs than in larvae and imago, the species richness and cellulose digestibility of gut bacteria were significantly higher in early larvae (first and second instars) than in late larvae (third to fifth instars), and the diversity of gut bacteria and cellulose digestibility were significantly higher in imago than in late larvae. There is a correlation between the dynamics of gut bacterial communities and cellulose digestibility. Enterobacter, Lactococcus, and Pseudomonas are the most abundant genera throughout all life stages. Six strains of highly efficient cellulolytic bacteria were screened, which were dominant gut bacteria. Carboxymethyl cellulase activity (CMCA) and filter paper activity (FPA) experiments revealed that Pseudomonas had the highest cellulase enzyme activity. This study provides a new way for the screening of cellulolytic bacteria and lays the foundation for developing insects with significant biomass into cellulose-degrading bioreactors. IMPORTANCE: Cellulose is the most abundant and cheapest renewable resource in nature, but its degradation is difficult, so finding efficient cellulose degradation methods is an urgent challenge. Locusta migratoria is a large group of agricultural pests, and the large number of microorganisms that inhabit their intestinal tracts play an important role in cellulose degradation. We analyzed the dynamics of Locusta migratoria gut microbial communities and cellulose digestibility using a combination of high-throughput sequencing technology and anthrone colorimetry. The results revealed that the gut microbial diversity and cellulose digestibility were dynamically changed at different life stages. In addition, we explored the intestinal bacterial community of Locusta migratoria across life stages and its correlation with cellulose digestibility. The dominant bacterial genera at different life stages of Locusta migratoria were uncovered and their carboxymethyl cellulase activity (CMCA) and filter paper activity (FPA) were determined. This study provides a new avenue for screening cellulolytic bacteria and lays the foundation for developing insects with significant biomass into cellulose-degrading bioreactors.

4.
BMC Geriatr ; 24(1): 413, 2024 May 10.
Artigo em Inglês | MEDLINE | ID: mdl-38730354

RESUMO

BACKGROUND: There is growing evidence linking the age-adjusted Charlson comorbidity index (aCCI), an assessment tool for multimorbidity, to fragility fracture and fracture-related postoperative complications. However, the role of multimorbidity in osteoporosis has not yet been thoroughly evaluated. We aimed to investigate the association between aCCI and the risk of osteoporosis in older adults at moderate to high risk of falling. METHODS: A total of 947 men were included from January 2015 to August 2022 in a hospital in Beijing, China. The aCCI was calculated by counting age and each comorbidity according to their weighted scores, and the participants were stratified into two groups by aCCI: low (aCCI < 5), and high (aCCI ≥5). The Kaplan Meier method was used to assess the cumulative incidence of osteoporosis by different levels of aCCI. The Cox proportional hazards regression model was used to estimate the association of aCCI with the risk of osteoporosis. Receiver operating characteristic (ROC) curve was adapted to assess the performance for aCCI in osteoporosis screening. RESULTS: At baseline, the mean age of all patients was 75.7 years, the mean BMI was 24.8 kg/m2, and 531 (56.1%) patients had high aCCI while 416 (43.9%) were having low aCCI. During a median follow-up of 6.6 years, 296 participants developed osteoporosis. Kaplan-Meier survival curves showed that participants with high aCCI had significantly higher cumulative incidence of osteoporosis compared with those had low aCCI (log-rank test: P < 0.001). When aCCI was examined as a continuous variable, the multivariable-adjusted model showed that the osteoporosis risk increased by 12.1% (HR = 1.121, 95% CI 1.041-1.206, P = 0.002) as aCCI increased by one unit. When aCCI was changed to a categorical variable, the multivariable-adjusted hazard ratios associated with different levels of aCCI [low (reference group) and high] were 1.00 and 1.557 (95% CI 1.223-1.983) for osteoporosis (P <  0.001), respectively. The aCCI (cutoff ≥5) revealed an area under ROC curve (AUC) of 0.566 (95%CI 0.527-0.605, P = 0.001) in identifying osteoporosis in older fall-prone men, with sensitivity of 64.9% and specificity of 47.9%. CONCLUSIONS: The current study indicated an association of higher aCCI with an increased risk of osteoporosis among older fall-prone men, supporting the possibility of aCCI as a marker of long-term skeletal-related adverse clinical outcomes.


Assuntos
Acidentes por Quedas , Osteoporose , Humanos , Masculino , Idoso , Osteoporose/epidemiologia , Osteoporose/diagnóstico , Estudos Retrospectivos , Idoso de 80 Anos ou mais , Incidência , Medição de Risco/métodos , Fatores de Risco , Comorbidade , China/epidemiologia , Fatores Etários
5.
Nat Commun ; 15(1): 3976, 2024 May 10.
Artigo em Inglês | MEDLINE | ID: mdl-38729948

RESUMO

Bleeding and thrombosis are known as common complications of polycythemia for a long time. However, the role of coagulation system in erythropoiesis is unclear. Here, we discover that an anticoagulant protein tissue factor pathway inhibitor (TFPI) plays an essential role in erythropoiesis via the control of heme biosynthesis in central macrophages. TFPI levels are elevated in erythroblasts of human erythroblastic islands with JAK2V617F mutation and hypoxia condition. Erythroid lineage-specific knockout TFPI results in impaired erythropoiesis through decreasing ferrochelatase expression and heme biosynthesis in central macrophages. Mechanistically, the TFPI interacts with thrombomodulin to promote the downstream ERK1/2-GATA1 signaling pathway to induce heme biosynthesis in central macrophages. Furthermore, TFPI blockade impairs human erythropoiesis in vitro, and normalizes the erythroid compartment in mice with polycythemia. These results show that erythroblast-derived TFPI plays an important role in the regulation of erythropoiesis and reveal an interplay between erythroblasts and central macrophages.


Assuntos
Eritroblastos , Eritropoese , Fator de Transcrição GATA1 , Heme , Lipoproteínas , Macrófagos , Policitemia , Policitemia/metabolismo , Policitemia/genética , Policitemia/patologia , Eritroblastos/metabolismo , Heme/metabolismo , Humanos , Animais , Lipoproteínas/metabolismo , Macrófagos/metabolismo , Camundongos , Fator de Transcrição GATA1/metabolismo , Fator de Transcrição GATA1/genética , Janus Quinase 2/metabolismo , Janus Quinase 2/genética , Trombomodulina/metabolismo , Trombomodulina/genética , Camundongos Knockout , Ferroquelatase/metabolismo , Ferroquelatase/genética , Masculino , Sistema de Sinalização das MAP Quinases , Camundongos Endogâmicos C57BL , Feminino
6.
Microb Genom ; 10(1)2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-38265428

RESUMO

In this study, two novel bacterial strains were isolated from coastal sediment of Weihai, China. The two strains were Gram-stain-negative and facultatively aerobic, designated 3-1745T and A346T. Based on phenotypic, genetic and phylogenetic properties, strains 3-1745T and A346T represent two novel species of the genus Marinobacterium. The results of genome analysis revealed many central carbohydrate metabolism pathways such as gluconeogenesis, pyruvate oxidation, tricyclic acid cycle, pentose phosphate pathway and PRPP biosynthesis in the genus Marinobacterium. The ability of strains 3-1745T and A346T to utilize volatile fatty acids was experimentally confirmed. Polyhydroxyalkanoate synthases (PhaA, PhaB and PhaC) for the synthesis of polyhydroxyalkanoates were prevalent in the genus Marinobacterium. Multiple BGCs (biosynthetic gene clusters) including betalactone, ectoine, ranthipeptide, redox-cofactor, RiPPs (ribosomally synthesized post-translationally modified peptides) and T3PKS (polyketide synthases) in the genome of the genus Marinobacterium were found. Additional genome analyses suggested that the genus Marinobacterium contained diverse potential mechanisms of salt tolerance and mainly utilized oligosaccharides. This is the first report on broad genomic analyses of the genus Marinobacterium with the description of two novel species and potential ecological and biotechnological implications.


Assuntos
Genômica , Sedimentos Geológicos , Filogenia , Genótipo , Biotecnologia
7.
Eur Heart J Qual Care Clin Outcomes ; 10(2): 154-167, 2024 Mar 01.
Artigo em Inglês | MEDLINE | ID: mdl-37481694

RESUMO

AIM: This study aims to provide a timely and comprehensive estimate of the current burden and temporal trend of cardiovascular disease (CVD) attributable to high body mass index (HBMI). METHODS: We systematically assessed the current burden and temporal trend of CVD attributable to HBMI by calendar year, age, sex, region, nation, socioeconomic status, and specific CVD based on the most recent Global Burden of Disease Study (GBD) 2019. RESULTS: Globally, the numbers of CVD-related disability-adjusted life years (DALYs) and deaths attributable to HBMI has more than doubled from 1990 to 2019. Conversely, the age-standardized rates (ASRs) of CVD-related DALYs and deaths attributable to HBMI showed a slight downward trend, with estimated annual percentage change (EAPC) of -0.18 and -0.43, respectively. The ASRs of CVD-related DALYs and deaths attributable to HBMI were lower in low and high Socio-demographic Index (SDI) regions in 2019, but higher in middle and high-middle SDI regions. The ASRs of CVD-related DALYs and deaths attributable to HBMI showed a downward trend in the high SDI regions from 1990 to 2019, but showed an upward trend in the low and low-middle SDI regions. The leading causes of CVD burden attributable to HBMI were ischemic heart disease, stroke, hypertensive heart disease, and atrial fibrillation/flutter in 2019. CONCLUSION: The CVD burden attributable to HBMI remains a challenging global health concern. Policymakers in high and increasing burden regions can learn from some valuable experiences of low and decreasing burden regions and develop more targeted and specific strategies to prevent and reduce CVD burden attributable to HBMI.


Assuntos
Doenças Cardiovasculares , Cardiopatias , Hipertensão , Isquemia Miocárdica , Humanos , Doenças Cardiovasculares/epidemiologia , Doenças Cardiovasculares/etiologia , Índice de Massa Corporal
8.
Artigo em Chinês | WPRIM (Pacífico Ocidental) | ID: wpr-1013353

RESUMO

ObjectiveTo provide a reference for the establishment of an ideal corneal neovascularization (CNV) animal model by summarizing the modeling characteristics of CNV animal models. MethodWith "CVN" as the theme word, this paper searched the China National Knowledge Infrastructure (CNKI), Wanfang, Chinese medical journals full-text database, and PubMed database and screened out relevant literature on CNV animal experiments from 2013 to 2023. The database was established by Excel 2021, and the experimental animal strain, gender, modeling method, detection index, and application category were sorted out. The characteristics of the CNV animal model were analyzed. ResultAfter comparative analysis, it was found that the animal strains were Sprague-Dawley rats (87 times, 29.49%) and New Zealand white rabbits (52 times, 17.63%). Male animals were recommended. Most modeling methods for efficacy verification and mechanism studies were the alkali burn method. Index detection methods included apparent index observation, histopathological detection, immunohistochemistry (IHC), Western blot, and various polymerase chain reaction (PCR) tests. Detection indexes included apparent indication, corneal histopathology, CNV regulation, etc. ConclusionThe CNV model of SD rats induced by the alkali burn method is recommended for model replication, and the indexes are mainly selected from the growth of CNV, corneal histopathological test, and vascular endothelial growth factor (VEGF)-related test. In addition, according to the demand, the corneal apparent indication and the basic indexes related to the regulation of CNV, such as vascular endothelial growth factor receptor 2 (VEGFR2), basic fibroblast growth factor (bFGF), and secretogranin Ⅲ (Scg3) are also selected. Clinical treatment of CNV relies on anti-inflammatory drugs and anti-VEGF drugs, and there is a lack of application of traditional Chinese medicine (TCM), so the model needs to be improved by adding elements of TCM syndromes.

9.
Protein & Cell ; (12): 21-35, 2024.
Artigo em Inglês | WPRIM (Pacífico Ocidental) | ID: wpr-1010788

RESUMO

The seat of human intelligence is the human cerebral cortex, which is responsible for our exceptional cognitive abilities. Identifying principles that lead to the development of the large-sized human cerebral cortex will shed light on what makes the human brain and species so special. The remarkable increase in the number of human cortical pyramidal neurons and the size of the human cerebral cortex is mainly because human cortical radial glial cells, primary neural stem cells in the cortex, generate cortical pyramidal neurons for more than 130 days, whereas the same process takes only about 7 days in mice. The molecular mechanisms underlying this difference are largely unknown. Here, we found that bone morphogenic protein 7 (BMP7) is expressed by increasing the number of cortical radial glial cells during mammalian evolution (mouse, ferret, monkey, and human). BMP7 expression in cortical radial glial cells promotes neurogenesis, inhibits gliogenesis, and thereby increases the length of the neurogenic period, whereas Sonic Hedgehog (SHH) signaling promotes cortical gliogenesis. We demonstrate that BMP7 signaling and SHH signaling mutually inhibit each other through regulation of GLI3 repressor formation. We propose that BMP7 drives the evolutionary expansion of the mammalian cortex by increasing the length of the neurogenic period.


Assuntos
Animais , Camundongos , Humanos , Células Ependimogliais/metabolismo , Proteínas Hedgehog/metabolismo , Furões/metabolismo , Córtex Cerebral , Neurogênese , Mamíferos/metabolismo , Neuroglia/metabolismo , Proteína Morfogenética Óssea 7/metabolismo
10.
Artigo em Chinês | WPRIM (Pacífico Ocidental) | ID: wpr-1006281

RESUMO

ObjectiveTo explore the clinical application law and provide literature support and development ideas for the modern application of fresh Plantaginis Herba. MethodThe literature about the application of fresh Plantaginis Herba was retrieved from the fifth edition of Chinese medical dictionary, China national knowledge infrastructure (CNKI), VIP, Wanfang data, and Chinese medical journals and analyzed. ResultFresh Plantaginis Herba appeared frequently in ancient books, with the effects of clearing heat, cooling blood, promoting urination, and relieving stranguria. It was used for the treatment of stranguria, urine retention, bloody urine, sore and carbuncle, epistaxis, red and swelling eye, suppurative inflammation in the throat, and gynecological and pediatric diseases. According to modern medical publications, fresh Plantaginis Herba is mainly used to treated diseases in the kidney, five sense organs, spleen, stomach, lung, liver, gallbladder, and skin and gynecological and pediatric diseases. Specifically, it is mainly used to treat the syndrome of dampness and heat in kidney and skin diseases caused by the accumulation of dampness and heat toxin, with the effects of clearing heat, removing toxin, promoting urination, and relieving stranguria. Since ancient times, there have been reports of using fresh Plantaginis Herbausing for food and health care. ConclusionFresh Plantaginis Herba is widely used in clinical practice and has a high medical value and economic value. However, its modern application lags behind, so it is necessary to promote the development of fresh Plantaginis Herba from the aspects of medicinal material production, storage, transportation, preparation research and development, and clinical application.

11.
PeerJ ; 11: e16550, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-38111661

RESUMO

Whole mitochondrial genomes have been widely used in phylogenetic analysis, population genetics and biogeography studies. This study sequenced and characterized three complete mitochondrial genomes (Dasyhippus peipingensis, Myrmeleotettix palpalis, Aeropedellus prominemarginis) and determined their phylogenetic position in Acrididae. The length of the mitochondrial genomes ranged from 15,621-15,629 bp and composed of 13 PCGs, 2 rRNA, 22 tRNA genes and an AT control region. The arrangement and structure of the mitochondrial genomes were similar to those of other invertebrates. Comparative genomics revealed that the three mitochondrial genomes were highly conserved in terms of gene size, structure, and codon usage, all PCGs were purified selections with an ATN start codon and a TAN stop codon. All tRNAs could be folded into the typical clover-leaf structure, except tRNA Ser (AGN) that lacked a dihydrouridine (DHU) arm. Phylogenetic analysis based on 13 PCGs of 34 Acrididae species and seven outgroup species revealed that differences in the shape of antennae within the family Acrididae should be given less weight as a taxonomic character for higher-level classification. Moreover, the divergence time estimates indicates that in Gomphocerinae, the species with clubbed antennae were formed within the nearest 18 Mya, and Pacris xizangensis is more ancient.


Assuntos
Genoma Mitocondrial , Gafanhotos , Animais , Gafanhotos/genética , Filogenia , Genoma Mitocondrial/genética , Genoma de Inseto , RNA de Transferência/genética
12.
BMC Gastroenterol ; 23(1): 412, 2023 Nov 27.
Artigo em Inglês | MEDLINE | ID: mdl-38012582

RESUMO

BACKGROUND: Novel endoscopic techniques used in the treatment of gastric lesions with local submucosal fibrosis need preclinical evaluation and training due to safety limitations. Therefore, the purpose of our study was to establish an animal model of gastric local fibrotic target lesions and assess its feasibility in the evaluation and training of endoscopic techniques. METHODS: In six experimental beagles, a 50% glucose solution was injected into three submucosal areas of the fundus, body, and antrum of the stomach to create gastric local fibrotic target lesions (experimental group). On post-injection day (PID) 7, the injection sites were assessed endoscopically to confirm the presence of submucosal fibrosis formation, and the dental floss clip traction assisted endoscopic submucosal dissection (DFC-ESD) procedure was performed on the gastric local fibrotic target lesions to confirm its feasibility after endoscopic observation. The normal gastric mucosa of six control beagles underwent the same procedure (control group). All the resected specimens were evaluated by histological examination. RESULTS: All 12 beagles survived without postoperative adverse events. On PID 7, 16 ulcer changes were observed at the injection sites (16/18) under the endoscope, and endoscopic ultrasonography confirmed the local submucosal fibrosis formation in all ulcer lesions. The subsequent DFC-ESD was successfully performed on the 32 gastric target lesions, and the mean submucosal dissection time in the ulcer lesions was greater than that in the normal gastric mucosa (15.3 ± 5.6 vs. 6.8 ± 0.8 min; P < 0.001). There was no difference in rates of en bloc resection, severe hemorrhage, or perforation between the two groups. Histological analysis of the ulcer lesions showed the absence of epithelial or muscularis mucosae and extensive submucosal fibrous tissue proliferations compared with normal gastric mucosa. Overall, endoscopists had high satisfaction with the realism and feasibility of the animal model. CONCLUSION: We developed a novel animal model of gastric local fibrotic target lesions to simulate difficult clinical situations, which strongly appeared to be suitable for the preclinical evaluation and learning of advanced endoscopic techniques.


Assuntos
Ressecção Endoscópica de Mucosa , Fibrose Oral Submucosa , Neoplasias Gástricas , Cães , Animais , Úlcera/patologia , Fibrose Oral Submucosa/patologia , Mucosa Gástrica/patologia , Endoscopia , Neoplasias Gástricas/patologia , Ressecção Endoscópica de Mucosa/métodos , Resultado do Tratamento
14.
J Insect Sci ; 23(6)2023 Nov 01.
Artigo em Inglês | MEDLINE | ID: mdl-38006418

RESUMO

Insect gut bacteria play an essential role in the nutritional metabolism, growth, and development of insects. Grasshoppers (Orthoptera) are cellulose-rich plant-feeding pests. Although the biological potential of grasshopper gut microorganisms to assist cellulose decomposition is well established, microbial resources for efficient degradation of cellulose biomass are still scarce and need to be developed. In this study, we used selective media to isolate cellulose-degrading bacteria from the intestines of Atractomorpha sinensis, Trilophidia annulata, Sphingonotus mongolicus, and Calliptamus abbreviatus. Phylogenetic analysis based on the maximum likelihood method using 16S rDNA sequencing sequences to identify bacteria revealed the isolation of 11 strains belonging to 3 genera, including Klebsiella, Aeromonas, and Bacillus. The degradability of the isolates to cellulose was then determined by the DNS colorimetric method, and the results showed that Bacillus had the highest degradation rate. The elucidation of microbial cellulose degradation capacity in grasshoppers not only contributes to the understanding of multiple plant-insect-microbe interactions, but also provides a valuable microbial resource for solving the biomass conversion of cellulose species problem.


Assuntos
Gafanhotos , Animais , Gafanhotos/metabolismo , Filogenia , Celulose/metabolismo , Bactérias/genética , Biomassa
15.
J Environ Manage ; 348: 119348, 2023 Dec 15.
Artigo em Inglês | MEDLINE | ID: mdl-37866186

RESUMO

Although the electrokinetic (EK) remediation has drawn great attention because of its good maneuverability, the focusing phenomenon near the cathode and low removal efficiency remain to be addressed. In this study, a novel EK reactor was proposed to remediate Cu and Pb contaminated loess where a biological permeable reactive barrier (bio-PRB) was deployed to the middle of the EK reactor. For comparison, three test configurations, namely, CG, TG-1, and TG-2, were available. CG considered the multiple enzyme-induced carbonate precipitation (EICP) treatments, while TG-1 considered both the multiple EICP treatments and pH regulation. TG-2 further considered NH4+ recovery based on TG-1. CG not only improved Cu and Pb removals by the bio-PRB but also depressed the focusing phenomenon. TG-1 causes more Cu2+ and Pb2+ to migrate toward the bio-PRB and aggravates Cu and Pb removals by the bio-PRB, depressing the focusing phenomenon. TG-2 depressed the focusing phenomenon the most because Cu2+ and Pb2+ can combine with not only CO32- but PO43-. The removal efficiency of Cu and Pb is 34% and 36%, respectively. A NH4+ recovery of about 100% is attained.


Assuntos
Recuperação e Remediação Ambiental , Poluentes do Solo , Chumbo , Tecnologia , Poluentes do Solo/análise , Solo
16.
Med Biol Eng Comput ; 61(12): 3335-3344, 2023 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-37672142

RESUMO

Neuroimaging-based brain age prediction using deep learning is gaining popularity. However, few studies have attempted to leverage diffusion tensor imaging (DTI) to predict brain age. In this study, we proposed a 3D convolutional neural network model (3DCNN) and trained it on fractional anisotropy (FA) data from six publicly available datasets (n = 2406, age = 17-60) to estimate brain age. Implementing a two-loop nested cross-validation scheme with a tenfold cross-validation procedure, we achieved a robust prediction performance of a mean absolute error (MAE) of 2.785 and a correlation coefficient of 0.932. We also employed Grad-Cam++ to visualize the salient features of the proposed model. We identified a few highly salient fiber tracts, including the genu of corpus callosum and the left cerebellar peduncle, among others that play a pivotal role in our model. In sum, our model reliably predicted brain age and provided novel insight into age-related changes in brains' axonal structure.


Assuntos
Imagem de Tensor de Difusão , Substância Branca , Imagem de Tensor de Difusão/métodos , Encéfalo/diagnóstico por imagem , Corpo Caloso , Anisotropia , Redes Neurais de Computação
17.
Zhongguo Dang Dai Er Ke Za Zhi ; 25(7): 685-688, 2023 Jul 15.
Artigo em Chinês | MEDLINE | ID: mdl-37529949

RESUMO

OBJECTIVES: To investigate the clinical features and treatment strategies of multisystemic inflammatory syndrome in children (MIS-C) after severe acute respiratory syndrome coronavirus 2 infection. METHODS: A retrospective analysis was performed on the medical data of four children with MIS-C who were admitted to the Department of Cardiology, Xuzhou Children's Hospital, Xuzhou Medical Universityfrom January to February 2023. RESULTS: All four children had multiple organ involvements and elevated inflammatory markers, with a poor response to standard therapy for Kawasaki disease after admission. Two children were treated with intravenous immunoglobulin therapy pulse therapy twice, and all four children were treated with glucocorticoids. The children had a good prognosis after the treatment. CONCLUSIONS: MIS-C often appears within 4-6 weeks or a longer time after severe acute respiratory syndrome coronavirus 2 infection, and anti-inflammatory therapy in addition to the standard treatment regimen for Kawasaki disease can help to achieve a favorable treatment outcome.


Assuntos
COVID-19 , Síndrome de Linfonodos Mucocutâneos , Criança , Humanos , COVID-19/complicações , SARS-CoV-2 , Síndrome de Linfonodos Mucocutâneos/complicações , Síndrome de Linfonodos Mucocutâneos/diagnóstico , Síndrome de Linfonodos Mucocutâneos/tratamento farmacológico , Estudos Retrospectivos , Síndrome de Resposta Inflamatória Sistêmica/diagnóstico , Síndrome de Resposta Inflamatória Sistêmica/etiologia , Síndrome de Resposta Inflamatória Sistêmica/terapia
18.
Ann Med ; 55(2): 2242384, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37557186

RESUMO

OBJECTIVE: The aim of this study was to compare and rank different targeted therapies or immunotherapies for advanced hepatocellular carcinoma based on efficacy. METHODS: A systematic search of the PubMed, EMBASE, and Cochrane Library databases was conducted. All systematic treatment regimens that reported comparisons with sorafenib were included in this analysis. The primary outcome measures were overall survival (OS) and progression-free survival (PFS), and other outcome measures included the objective response rate (ORR) and safety analysis according to reported treatment-related adverse events. RESULTS: A total of 29 RCTs involving 13376 patients were included in the analysis, including 10 single-agent therapies and 17 combination therapies. Compared with sorafenib, sintilimab plus IBI305 (HR: 0.57, 95% CI: 0.43-0.75), camrelizumab plus rivoceranib (HR: 0.62, 95% CI: 0.49-0.78), and atezolizumab plus bevacizumab (HR: 0.66, 95% CI: 0.52-0.83) ranked in the top three in terms of OS. CONCLUSIONS: PD-1/PD-L1 inhibitors combined with anti-vascular endothelial growth factor (anti-VEGF)-targeting drugs have shown better therapeutic effects in the systematic treatment of patients with advanced hepatocellular carcinoma, and the combination of targeted and immune therapy modes should be further developed.


Assuntos
Carcinoma Hepatocelular , Neoplasias Hepáticas , Humanos , Teorema de Bayes , Carcinoma Hepatocelular/tratamento farmacológico , Carcinoma Hepatocelular/patologia , Imunoterapia , Neoplasias Hepáticas/tratamento farmacológico , Neoplasias Hepáticas/patologia , Terapia de Alvo Molecular , Metanálise em Rede , Ensaios Clínicos Controlados Aleatórios como Assunto , Sorafenibe/uso terapêutico
20.
Dev Comp Immunol ; 145: 104726, 2023 08.
Artigo em Inglês | MEDLINE | ID: mdl-37149238

RESUMO

Piscidins participate in the innate immune response of fish, which aims to eliminate recognized foreign microbes and restore the homeostasis of immune system. We characterized two piscidin-like antimicrobial peptides (LjPL-3 and LjPL-2) isolated from Japanese sea bass (Lateolabrax japonicus). LjPL-3 and LjPL-2 showed different expression patterns in tissues. After Vibrio harveyi infection, the mRNA expression of LjPL-3 and LjPL-2 was upregulated in the liver, spleen, head kidney, and trunk kidney. The synthetic mature peptides LjPL-3 and LjPL-2 exhibited different antimicrobial spectra. Furthermore, LjPL-3 and LjPL-2 treatments decreased inflammatory cytokine production while promoting chemotaxis and phagocytosis in monocytes/macrophages (MO/MФ). LjPL-2, but not LjPL-3, displayed bacterial killing capability in MO/MФ. LjPL-3 and LjPL-2 administration increased Japanese sea bass survival after V. harveyi challenge, which was accompanied by a decline in bacterial burden. These data suggested that LjPL-3 and LjPL-2 participate in immune response through direct bacterial killing and MO/MФ activation.


Assuntos
Anti-Infecciosos , Bass , Doenças dos Peixes , Vibrioses , Animais , Monócitos , Macrófagos , Bass/metabolismo , Peptídeos Antimicrobianos , Proteínas de Peixes/metabolismo
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