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1.
Bioorg Med Chem Lett ; : 129983, 2024 Oct 10.
Artículo en Inglés | MEDLINE | ID: mdl-39395634

RESUMEN

Pyrazolol derivatives are gaining significant attention for their diverse pharmacological effects, such as analgesic, anti-inflammatory, antioxidant, and anticancer activities. In this study, 20 pyrazolol derivatives were designed and synthesized to develop an anti-ischemic stroke formulation with free radical scavenging activity. Most of these synthesized compounds demonstrated antioxidant capabilities in DPPH, ABTS radical scavenging, and ORACFL assays. The methyl-substituted compound Y12, in particular, showed exceptional antioxidant capacity. Additionally, these compounds showed excellent neurocytoprotective effects in the SH-SY5Y cell injury model subjected to oxygen-glucose deprivation/reoxygenation (OGD/R). Notably, Y12 exhibited significant metal chelating activity with Cu2+. In vivo studies confirmed that compound Y12 has neuroprotective effects and can significantly reduce the infarct area in a mouse model of focal cerebral ischemia induced by transient middle cerebral artery occlusion (tMCAO).

2.
Inorg Chem ; 2024 Oct 16.
Artículo en Inglés | MEDLINE | ID: mdl-39411888

RESUMEN

It remains a challenging issue to achieve durably stable photocatalytic CO2 reduction over heterojunctions owing to their inherent structural assembly features. Herein, a unique partial encapsulation architecture is fabricated on the 3D/2D CoWO4/C3N5 heterojunction by embedding CoWO4 microspheres on C3N5 nanosheets, which achieves efficient, durable, stable, and selective photocatalytic CO2 reduction. For the optimal 5%-CoWO4/C3N5 heterojunction, the yield of selective CO2 reduction to CO is 7.70 and 3.82 times higher than those of CoWO4 and C3N5 in 4 h, respectively, and it maintains a stable CO generation rate within 20 cycles over 80 h. A series of characterization experiments and density functional theory calculations reveal that the structural stability is reinforced significantly via strong interfacial interaction owing to the unique partial encapsulation architecture fabricated on the 3D/2D CoWO4/C3N5 heterojunction, the separation efficiency of photogenerated carriers is improved by inducing a built-in electric field and triggering the S-scheme charge-transport path, and the high CO product selectivity is attributed to the much lower free energy required for the generation path of CO compared to that for CH4.

3.
Sci Total Environ ; 954: 176433, 2024 Sep 25.
Artículo en Inglés | MEDLINE | ID: mdl-39332717

RESUMEN

The increasing use of silica nanoparticles (SiO2 NPs) has raised concerns about potential human exposure. Assessing the health risks associated with SiO2 NPs necessitates understanding their cellular uptake, yet measuring this uptake at low, environmentally relevant concentrations presents a significant challenge. In this study, we synthesized core-shell structured Au@SiO2 NPs with diameters ranging from 50 to 200 nm and quantified their cellular uptake by analyzing the concentrations of Si and Au in A549 human lung carcinoma cells. No significant differences in cytotoxicity or cellular uptake were observed between Au@SiO2 NPs and their core-less counterparts. Additionally, the comparable cellular uptake of Au@SiO2 NPs, as evidenced by both Si and Au content, supports the use of the Au core as a tracer for SiO2 NP uptake. The inclusion of the Au core facilitated the examination of SiO2 NP uptake at concentrations an order of magnitude lower than previously possible, aligning more closely with environmental exposure levels. This is important because uptake at low concentrations cannot be accurately predicted from high-concentration data due to concentration-dependent changes in particle aggregation. Overall, Au@SiO2 NPs provide a precise method for evaluating SiO2 NP uptake at low concentrations, offering a more realistic assessment of their potential health risks compared to studies conducted at higher concentrations.

4.
Sci Data ; 11(1): 1018, 2024 Sep 19.
Artículo en Inglés | MEDLINE | ID: mdl-39300139

RESUMEN

"Candidatus Liberibacter asiaticus" (CLas) is a phloem-limited alpha-proteobacteria causing Citrus Huanglongbing, the destructive disease currently threatening global citrus industry. Genomic analyses of CLas provide insights into its evolution and biology. Here, we sequenced and assembled whole genomes of 135 CLas strains originally from 20 citrus cultivars collected at ten citrus-growing provinces in China. The resulting dataset comprised 135 CLas genomes ranging from 1,221,309 bp to 1,308,521 bp, with an average coverage of 675X. Prophage typing showed that 44 strains contained Type 1 prophage, 89 strains contained Type 2 prophage, 44 strains contained Type 3 prophage, and 34 of them contained more than one type of prophage/phage. The SNP calling identified a total of 5,090 SNPs. Genome-based phylogenetic analysis revealed two major clades among CLas strains, with Clade I dominated by CLas strains containing Type 1 prophage (79/95) and Clade II dominated by CLas strains containing Type 1 or Type 3 prophage (80/95). This CLas genome dataset provides valuable resources for studying genetic diversity and evolutionary pattern of CLas strains.


Asunto(s)
Citrus , Genoma Bacteriano , Filogenia , Profagos , Secuenciación Completa del Genoma , China , Citrus/microbiología , Profagos/genética , Rhizobiaceae/genética , Rhizobiaceae/clasificación , Polimorfismo de Nucleótido Simple , Enfermedades de las Plantas/microbiología
5.
Nanomicro Lett ; 17(1): 7, 2024 Sep 22.
Artículo en Inglés | MEDLINE | ID: mdl-39306636

RESUMEN

Gradient magnetic heterointerfaces have injected infinite vitality in optimizing impedance matching, adjusting dielectric/magnetic resonance and promoting electromagnetic (EM) wave absorption, but still exist a significant challenging in regulating local phase evolution. Herein, accordion-shaped Co/Co3O4@N-doped carbon nanosheets (Co/Co3O4@NC) with gradient magnetic heterointerfaces have been fabricated via the cooperative high-temperature carbonization and low-temperature oxidation process. The results indicate that the surface epitaxial growth of crystal Co3O4 domains on local Co nanoparticles realizes the adjustment of magnetic-heteroatomic components, which are beneficial for optimizing impedance matching and interfacial polarization. Moreover, gradient magnetic heterointerfaces simultaneously realize magnetic coupling, and long-range magnetic diffraction. Specifically, the synthesized Co/Co3O4@NC absorbents display the strong electromagnetic wave attenuation capability of - 53.5 dB at a thickness of 3.0 mm with an effective absorption bandwidth of 5.36 GHz, both are superior to those of single magnetic domains embedded in carbon matrix. This design concept provides us an inspiration in optimizing interfacial polarization, regulating magnetic coupling and promoting electromagnetic wave absorption.

6.
J Ethnopharmacol ; 337(Pt 1): 118778, 2024 Sep 03.
Artículo en Inglés | MEDLINE | ID: mdl-39236776

RESUMEN

ETHNOPHARMACOLOGICAL RELEVANCE: Terminalia bellirica (Gaertn.) Roxb. (TBR), a popular herbal remedy in India and Southeast Asia, has been demonstrated to possess multiple pharmacological activities. However, systematic studies on the medicinal effects and mechanism of TBR for the androgenetic alopecia (AGA) treatment are deficient. MATERIALS AND METHODS: Human Umbilical Vein Endothelial Cells (HUVECs) and testosterone-induced AGA mice were used to evaluate the hair regrowth activity of TBR extracts. Chemical constituents and potential active components of TBR extracts were analyed by UPLC-Q-TOF-MS in vitro/vivo. The hair regrowth mechanisms of TBR were elucidated through network pharmacology and experimental validation. RESULTS: Totally 28 chemical constituents in TBR were identified, of which 15 were predicted as potential active components for AGA therapy. TBR could significantly scavenge ROS, promote VEGF level/cell migration of HUVECs, and inhibiting type II 5α-reductase activity (the inhibit rate: 82.35 ± 1.02 %). Pharmacodynamic evaluation suggested that TBR effectively led to hair regrowth in C57BL6 mice compared to minoxidil. TBR promoted the hair follicle (HF) transition from the telogen phase to anagen phase by decreasing MDA levels, increasing VEFG expression and up-regulating phosphorylated P38/ERK protein levels in the MAPK signalling pathway. CONCLUSIONS: TBR reversed AGA via inhibiting SRD5A2 activity and stimulating the MAPK pathway. Meantime, TBR could remodel the follicle microenvironment by reducing oxidative stress and increasing angiogenesis.

7.
J Formos Med Assoc ; 2024 Sep 09.
Artículo en Inglés | MEDLINE | ID: mdl-39256062

RESUMEN

BACKGROUND: Mutations of ABO gene may cause the dysfunction of ABO glycosyltransferase (GT) that can result in weak ABO phenotypes. Here, we identified two novel weak ABO subgroup alleles and explored the mechanism that caused Ax phenotype. MATERIALS AND METHODS: The ABO phenotyping and genotyping were performed by serological studies and direct DNA sequencing of ABO gene. The role of the mutations was evaluated by 3D model, predicting protein structure changes, and in vitro expression assay. The total glycosyltransferase transfer capacity in supernatant of transfected cells was examined. RESULTS: The results of serological showed the subject RJ23 and RJ52 both were Ax phenotypes. The novel A alleles, Avar-1 and Avar-2 were identified according to the gene analysis. Both Avar-1 and Avar-2 harbored recombinant heterozygous alleles, specifically A2.05 and O.01.02. These alleles showcased substitutions at positions c.106G > T, c.189C > T, c.220C > T, and c.1009A > G in their respective exons. It is worth noting that the crossing-over regions of these two alleles differed from each other. In vitro expression study showed that GTA mutant impaired H to A antigen conversion, and the mutant did not affect the production of GTA though the Western bolt. In silico analysis showed that GTA mutant may change the local conformation and the stability of GT. CONCLUSIONS: The Avar-1 and Avar-2 alleles were identified, which could cause the Ax phenotype through changing the local conformation and reducing stability of the GTA.

8.
Int J Mol Sci ; 25(17)2024 Aug 25.
Artículo en Inglés | MEDLINE | ID: mdl-39273167

RESUMEN

Selenium is a vital trace mineral that is crucial for maintaining regular biological processes in aquatic animals. In this study, a four-week dietary trial was carried out to assess the impact of bio-fermented selenium (Bio-Se) on the growth and immune response of Chinese mitten crabs, Eriocheir sinensis. The crabs were randomly allocated to five dietary treatment groups, each receiving a different dose of Bio-Se. The doses included 0, 0.3, 0.6, 1.5, and 3.0 mg/kg and were accurately measured in basal diet formulations. The results showed the weight gain rate (WGR), specific growth rate (SGR), and survival rate (SR) in the 1.5 mg/kg Bio-Se group were the highest, and 3.0 mg/kg of Bio-Se has an inhibitory effect on the WGR, SGR, and SR. The activities of the immune enzymes, including glutathione peroxidase (GPX), superoxide dismutase (SOD), and acid phosphatase (ACP), of the hepatopancreas were significantly (p < 0.05) increased in the 1.5 mg/kg Bio-Se group, while they decreased (p < 0.05) in the 3.0 mg/kg feeding group compared to the 0 mg/kg feeding group. The concentration of maleic dialdehyde (MDA) exhibited the opposite pattern. Similarly, the mRNA expression levels of antimicrobial peptides (ALF-1, Crus-1, and LYS), ERK, and Relish genes were also observed to be the highest in the 1.5 mg/kg Bio-Se group compared with the other groups. Furthermore, the administration of 1.5 mg/kg of Bio-Se resulted in an increase in the thickness of the intestinal plica and mucosal layer, as well as in alterations in the intestinal microbial profile and bacterial diversity compared to the dose of 0 mg/kg of Bio-Se. Notably, the population of the beneficial bacterial phylum Fusobacteria was increased after crabs were fed the 1.5 mg/kg Bio-Se diet. In conclusion, the oral administration of 1.5 mg/kg of Bio-Se improved the growth efficiency, antioxidant capabilities, immunity, and intestinal health of E. sinensis. Through a broken-line analysis of the WGR against dietary Bio-Se levels, optimal dietary Bio-Se levels were determined to be 1.1 mg/kg. These findings contribute valuable insights to the understanding of crab cultivation and nutrition.


Asunto(s)
Braquiuros , Suplementos Dietéticos , Microbioma Gastrointestinal , Selenio , Animales , Selenio/farmacología , Braquiuros/crecimiento & desarrollo , Braquiuros/microbiología , Braquiuros/inmunología , Braquiuros/efectos de los fármacos , Microbioma Gastrointestinal/efectos de los fármacos , Fermentación , Alimentación Animal , Glutatión Peroxidasa/metabolismo , Superóxido Dismutasa/metabolismo , Hepatopáncreas/metabolismo , Hepatopáncreas/efectos de los fármacos
9.
Dev Comp Immunol ; 161: 105242, 2024 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-39128619

RESUMEN

Molting is a key biological process of crustaceans, which is mainly regulated by 20-hydroxyecdyone (20E). The molting cycle could be divided into three main stages including pre-molt, post-molt and inter-molt stages. The mechanism of immune regulation during molting process still requires further exploration. Yorkie (Yki) is a pivotal transcription factor in the Hippo signaling pathway, and it plays an essential role in regulating cell growth and immune response. In the present study, a Yki gene was identified from Eriocheir sinensis (designed as EsYki), and the regulatory role of EsYki in controlling the expression of antimicrobial peptide genes throughout the molting process was investigated. The mRNA expression level of EsYki was higher at the pre-molt stage compared to the post-molt stage and inter-molt stage. Following the injection of 20E, there was a notable and consistent rise in the EsYki mRNA expression in haemocytes. The increase was observed from 3 h to 48 h with the maximum level at 12 h. And the phosphorylation of Yki in the haemocytes was also significantly up-regulated at 3 h post 20E injection. Moreover, the levels of EsYki mRNA expression at three molting stages were significantly increased post Aeromonas hydrophila stimulation. The maximum level was detected at post-molt stage following A. hydrophila stimulation, while the lowest level was observed at inter-molt stage. The expression pattern of EsCrus was in contrast to EsCrus. After EsYki mRNA transcripts were inhibited by Yki inhibitor (CA3), the mRNA expression levels of EsCrus1 and EsCrus2 following A. hydrophila stimulation were significantly elevated. Furthermore, the phosphorylation level of NF-κB was also increased following the inhibition of Yki. Collectively, our findings indicated that EsYki could be induced by 20E and has a suppressive effect on the expression of EsCrus via inhibiting NF-κB during molting process. This research contributes to the understanding of the immunological regulation mechanism during molting process in crustaceans.


Asunto(s)
Aeromonas hydrophila , Proteínas de Artrópodos , Braquiuros , Hemocitos , Muda , Animales , Braquiuros/inmunología , Braquiuros/genética , Proteínas de Artrópodos/metabolismo , Proteínas de Artrópodos/genética , Hemocitos/metabolismo , Hemocitos/inmunología , Aeromonas hydrophila/fisiología , Aeromonas hydrophila/inmunología , Proteínas Señalizadoras YAP/metabolismo , Transducción de Señal , Transactivadores/metabolismo , Transactivadores/genética , Péptidos Antimicrobianos/metabolismo , Péptidos Antimicrobianos/genética , Ecdisterona/metabolismo , Regulación del Desarrollo de la Expresión Génica , Inmunidad Innata
10.
J Palliat Med ; 27(9): 1204-1209, 2024 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-39112021

RESUMEN

Background: Despite physical and emotional distress in patients with gynecologic malignancies, palliative care (PC) is underutilized. Objectives: We characterize referral practices, symptom burden and functional status at the time of initial PC encounter for patients with gynecologic cancer. Design: Data were extracted from the standardized Quality Data Collection Tool for Palliative Care (QDACT-PC). We describe symptom burden and performance status. Results: At initial specialty PC encounter, patients with gynecologic cancers reported a mean of 3.3 moderate/severe symptoms. Outpatients experienced the most moderate/severe symptoms (mean 3.9) versus inpatient (mean 2.1) or home (mean 1.5). A total of 72.7% of patients had significantly impaired functional status (palliative performance scale [PPS] <70) at initial encounter. Inpatients had a more impaired functional status (mean PPS 48.8) than outpatients (mean PPS 67.0). Conclusions: The symptom burden for gynecologic cancer patients at initial PC encounter is high. Despite better functional status, patients referred in the outpatient setting had the highest symptom burden.


Asunto(s)
Estado Funcional , Neoplasias de los Genitales Femeninos , Cuidados Paliativos , Humanos , Femenino , Neoplasias de los Genitales Femeninos/psicología , Neoplasias de los Genitales Femeninos/terapia , Persona de Mediana Edad , Anciano , Adulto , Anciano de 80 o más Años , Costo de Enfermedad , Carga Sintomática
11.
Viruses ; 16(8)2024 Aug 15.
Artículo en Inglés | MEDLINE | ID: mdl-39205274

RESUMEN

In this study, we describe the genetic characteristics of influenza A(H1N1)pdm09 strains detected in Myanmar from 2015 to 2019. Whole genomes from 60 A(H1N1)pdm09 virus isolates were amplified using real-time polymerase chain reaction and successfully sequenced using the Illumina iSeq100 platforms. Eight individual phylogenetic trees were retrieved for each segment along with those of the World Health Organization (WHO)-recommended Southern Hemisphere vaccine strains for the respective years. A(H1N1)pdm09 viruses from 2015 were found to belong to clade 6B, those from 2016 to 6B.1, 2017 to 6B.1A, and 2019 to 6B.1A.5a, and were genetically distinct from the Southern Hemisphere vaccine strains for the respective seasons, A/California/7/2009 and A/Michigan/45/2015. We observed one virus with intra-subtype reassortment, collected in the 2015 season. Importantly, three viruses possessed the H275Y substitution in the neuraminidase protein, appearing to be community-acquired without the prior administration of neuraminidase inhibitors. These viruses exhibited highly reduced susceptibility to oseltamivir and peramivir. This study demonstrates the importance of monitoring genetic variations in influenza viruses that will contribute to the selection of global influenza vaccines.


Asunto(s)
Antivirales , Farmacorresistencia Viral , Genoma Viral , Subtipo H1N1 del Virus de la Influenza A , Gripe Humana , Neuraminidasa , Oseltamivir , Filogenia , Secuenciación Completa del Genoma , Humanos , Mianmar/epidemiología , Gripe Humana/virología , Gripe Humana/epidemiología , Subtipo H1N1 del Virus de la Influenza A/genética , Subtipo H1N1 del Virus de la Influenza A/efectos de los fármacos , Subtipo H1N1 del Virus de la Influenza A/aislamiento & purificación , Subtipo H1N1 del Virus de la Influenza A/clasificación , Farmacorresistencia Viral/genética , Oseltamivir/farmacología , Antivirales/farmacología , Antivirales/uso terapéutico , Neuraminidasa/genética , Pacientes Ambulatorios , Infecciones Comunitarias Adquiridas/virología , Infecciones Comunitarias Adquiridas/epidemiología
12.
Thromb Res ; 241: 109117, 2024 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-39151291

RESUMEN

INTRODUCTION: Hereditary Hemorrhagic Telangiectasia (HHT) is charactered by telangiectasia and arteriovenous malformations (AVMs). Recurrent visceral and mucocutaneous bleeding is frequently reported among HHT patients, while data on the prevalence of thrombosis remains limited. This study aims to describe the clinical manifestations and molecular biological characteristics of HHT patients. METHODS: We conducted a retrospective study at Ruijin Hospital, affiliated with Shanghai Jiao Tong University School of Medicine. A total of 24 HHT patients, observed between January 2019 and December 2023, were included. We recorded the biological, clinical, and therapeutic events, with particular attention to bleeding and thrombotic events. Gene mutation analysis and blood constituent measurements were performed. RESULTS: The prevalence of bleeding among all HHT patients was 100 %, while thrombotic events were noted in 41.70 % of cases. Hepatic arteriovenous malformations (HAVMs) were identified in six patients, pulmonary arteriovenous malformations (PAVMs) in five patients, and cerebral arteriovenous malformations (CAVMs) in one patient. For patients with thrombosis, the discontinuation rates were 23.08 % for antiplatelet therapy and 33.33 % for anticoagulant therapy due to the increased risk of bleeding. Genetic mutations related to HHT were present in 16 patients, with ACVRL1 (activin A receptor-like type 1) mutations being the most frequent at 41.67 %, followed by ENG (endoglin) mutations at 20.83 %, and GDF2 (growth differentiation factor 2) mutations at 4.17 %. The incidence of PAVMs was 75.00 % in HHT1 patients with ENG mutations and 20 % in HHT2 patients with ACVRL1 mutations, while HAVMs occurred in 0 % and 40.00 % of these groups, respectively. Patients were divided into non-AVMs and AVMs groups. Compared to normal controls, von Willebrand factor (vWF) activity was significantly increased in all HHT patients (149.10 % vs. 90.65 %, P < 0.001). In the non-AVMs group, the median level of stromal cell-derived factor-1 (SDF-1) was significantly elevated (124.31 pg/mL vs. 2413.57 pg/mL, P < 0.05), while vWF antigen levels were markedly higher in the AVMs group (165.30 % vs. 130.60 %, P = 0.021). Further grouping of HHT patients based on bleeding and thrombosis phenotypes revealed that those with thrombosis had significantly higher median percentages of schistocytes (3.50 % vs. 0 %, P = 0.002), ferritin concentrations (318.50 µg/L vs. 115.50 µg/L, P = 0.001), and lactate dehydrogenase (LDH) levels (437 U/L vs. 105 U/L, P < 0.001). There were no significant differences in the activity of vWF, protein C (PC), protein S (PS), and factor VIII (FVIII) between the two groups. CONCLUSION: This study highlighted the complex relationship between arteriovenous malformations and genetic mutations in HHT patients. A comprehensive assessment of bleeding and thrombosis risks should be conducted for each HHT patient, additionally, further clinical studies are needed to explore the risk factors for thrombosis and anticoagulant-related bleeding in HHT.


Asunto(s)
Telangiectasia Hemorrágica Hereditaria , Humanos , Telangiectasia Hemorrágica Hereditaria/complicaciones , Telangiectasia Hemorrágica Hereditaria/genética , Telangiectasia Hemorrágica Hereditaria/epidemiología , Masculino , Femenino , Estudios Retrospectivos , Persona de Mediana Edad , Adulto , Mutación , Anciano , Adulto Joven , Trombosis/genética , Trombosis/etiología , Malformaciones Arteriovenosas/genética , Malformaciones Arteriovenosas/complicaciones , Adolescente
13.
Fish Shellfish Immunol ; 153: 109842, 2024 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-39153580

RESUMEN

Molting is a crucial biological process of crustaceans. Crustaceans go through three separate stages throughout their molting process, including pre-molt, post-molt and inter-molt. However, the exact mechanism of immunological modulation during molting remains unclear. Tumor necrosis factor receptor-associated factor 6 (TRAF6) has been extensively documented to participate in immune defense. In the present study, a TRAF6 gene with two TRAF-type zinc finger domains was identified from Eriocheir sinensis (designed as EsTRAF6), and its role in regulating immune response during molting process was explored. The mRNA expression level of EsTRAF6 at pre-molt stage was higher than that at post-molt stage and inter-molt stage. After Aeromonas hydrophila stimulation, the expression levels of EsTRAF6, EsRelish and anti-lipopolysaccharide factors (ALFs) genes exhibited a considerable increase at three molting stages. Subsequently, the expression patterns of EsTRAF6 and EsRelish in response to the treatment with 20-hydroxyecdysone (20E) were examined. The mRNA expression of EsTRAF6 and EsRelish were significantly increased at 12 h after 20E injection. Additionally, the protein expression level of TRAF6 was also up-regulated in 20E group compared to control group. Furthermore, the role of EsTRAF6 in regulating the anti- ALFs expression at pre-molt stage post A. hydrophila stimulation was investigated. Following the inhibition of the EsTRAF6 transcript using RNAi or the injection of inhibitor (TMBPS), there was a notable decrease of the EsALF1, EsALF2 and EsALF3 transcripts. Moreover, a significant reduction in the phosphorylation level of NF-κB at pre-molt stage was observed after A. hydrophila stimulation in TRAF6-inhibited crabs. Collectively, our results suggest that EsTRAF6 could be induced by 20E and promoted the EsALFs expression by activating NF-κB at pre-molt stage, which provides a novel insight into the research of immune regulatory mechanism during the process of molting of crustaceans.


Asunto(s)
Proteínas de Artrópodos , Decápodos , FN-kappa B , Factor 6 Asociado a Receptor de TNF , Animales , Aeromonas hydrophila/fisiología , Secuencia de Aminoácidos , Proteínas de Artrópodos/genética , Proteínas de Artrópodos/inmunología , Proteínas de Artrópodos/química , Perfilación de la Expresión Génica/veterinaria , Regulación de la Expresión Génica/inmunología , Inmunidad Innata/genética , Muda/inmunología , Muda/genética , FN-kappa B/genética , FN-kappa B/metabolismo , FN-kappa B/inmunología , Filogenia , Alineación de Secuencia/veterinaria , Factor 6 Asociado a Receptor de TNF/genética , Factor 6 Asociado a Receptor de TNF/inmunología
14.
Environ Res ; 260: 119779, 2024 Nov 01.
Artículo en Inglés | MEDLINE | ID: mdl-39142459

RESUMEN

Lanthanum nickelate (LaNiO3), known for its high visible-light absorption, is a promising photocatalyst for water purification. However, the low conduction band position and high photogenerated carrier complexation rate of pure LaNiO3 limit its photocatalytic activity. To address this issue, we investigated the synergistic effects of doping and constructing heterojunctions. A La0.9Sr0.1NiO3 (20%)/g-C3N4 (L2CN8) heterojunction was successfully created. In addition, various characterisation techniques were then employed to analyse the structure-performance relationships of these heterojunction photocatalysts in degrading organic dyes. Results revealed that at a 10% Sr doping level, the oxygen vacancy content was 0.68, which is significantly higher than that of LaNiO3 (0.05). The increased number of oxygen vacancies enhanced the electron capture ability and improved the separation efficiency of photogenerated carriers. Furthermore, the optimised L2CN8 (20 mg) achieved 81.2% and 73.8% removal of methylene blue (50.0 mL, 10 mg L-1) and tetracycline (50.0 mL, 10 mg L-1) under simulated visible-light irradiation (λ > 420 nm). Furthermore, an active species capture experiment confirmed the significant role of superoxide radicals (·O2-) in the degradation process. Based on these experimental findings, we proposed a rational Z-type charge transfer mechanism. This study holds great importance for water pollution control and environmental protection.


Asunto(s)
Lantano , Luz , Contaminantes Químicos del Agua , Contaminantes Químicos del Agua/química , Contaminantes Químicos del Agua/análisis , Catálisis , Lantano/química , Níquel/química , Azul de Metileno/química , Fotólisis , Procesos Fotoquímicos , Compuestos de Nitrógeno/química , Tetraciclina/química , Nitrilos/química , Grafito
15.
HLA ; 104(2): e15625, 2024 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-39091273

RESUMEN

Donor-specific HLA antibody (DSA) has been recognised as an independent risk factor for graft failure in patients undergoing haploidentical haematopoietic stem cell transplantation (HID HSCT). Therapeutic plasma exchange (TPE), as a first-line strategy for DSA desensitisation, can promptly reduce serum DSA levels. This study aimed to investigate DSA characteristics and identify a biomarker predicting the efficacy of DSA desensitisation in patients proceeding to HID HSCT. We retrospectively enrolled 32 patients with DSA from April 2021 to January 2024, and analysed the mean fluorescence intensity (MFI) value of DSA at the different time points of desensitisation treatment. Compared with baseline DSA level before TPE, the median MFI of HLA class I DSA was reduced from 8178.6 to 795.3 (p < 0.001), and HLA class II DSA decreased from 6210.9 to 808.8 (p < 0.001) after TPE. The DSA level in 1:16 diluted pre-TPE serum correlated well with DSA value in post-TPE serum (class I, r = 0.85, p < 0.0001; class II, r = 0.94, p < 0.0001), predicting TPE efficacy in 84.4% of patients. Based on the degree of DSA reduction after TPE, patients were divided into complete responders (decreased by >70%), partial responders (decreased by 30 to 70%) and non-responders (decreased by <30%) and the percentages were 43.8%, 25% and 31.2%, respectively. Non-responders receiving aggressive immunotherapy had longer overall survival compared to those receiving standard strategies (p < 0.05). The 1:16 diluted pre-TPE serum may predict the efficacy of TPE and allow for more rational immunotherapy strategy for patients with DSA proceeding to HID HSCT.


Asunto(s)
Antígenos HLA , Trasplante de Células Madre Hematopoyéticas , Isoanticuerpos , Humanos , Trasplante de Células Madre Hematopoyéticas/métodos , Masculino , Femenino , Adulto , Estudios Retrospectivos , Persona de Mediana Edad , Antígenos HLA/inmunología , Isoanticuerpos/sangre , Isoanticuerpos/inmunología , Donantes de Tejidos , Rechazo de Injerto/inmunología , Intercambio Plasmático/métodos , Adolescente , Trasplante Haploidéntico/métodos , Adulto Joven , Biomarcadores/sangre , Desensibilización Inmunológica/métodos
16.
Medicine (Baltimore) ; 103(31): e39104, 2024 Aug 02.
Artículo en Inglés | MEDLINE | ID: mdl-39093800

RESUMEN

Diabetes mellitus (DM) and heart failure frequently coexist, presenting significant public health challenges. QiShenYiQi Dropping Pills (QSDP) are widely employed in the treatment of diabetes mellitus concomitant with heart failure (DM-HF). Nevertheless, the precise mechanisms underlying their efficacy have yet to be elucidated. Active ingredients and likely targets of QSDP were retrieved from the TCMSP and UniProt databases. Genes associated with DM-HF were pinpointed through searches in the GeneCards, OMIM, DisGeNET, and TTD databases. Differential genes connected to DM-HF were sourced from the GEO database. Enrichment analyses via gene ontology and Kyoto Encyclopedia of Genes and Genomes pathways, as well as immune infiltration assessments, were conducted using R software. Further analysis involved employing molecular docking strategies to explore the interactions between the identified targets and active substances in QSDP that are pertinent to DM-HF treatment. This investigation effectively discerned 108 active compounds and 257 targets relevant to QSDP. A protein-protein interaction network was constructed, highlighting 6 central targets for DM-HF treatment via QSDP. Gene ontology enrichment analysis predominantly linked these targets with responses to hypoxia, metabolism of reactive oxygen species, and cytokine receptor interactions. Analysis of Kyoto Encyclopedia of Genes and Genomes pathways demonstrated that these targets mainly participate in pathways linked to diabetic complications, such as AGE-RAGE signaling, dyslipidemia, arteriosclerosis, the HIF-1 signaling pathway, and the tumor necrosis factor signaling pathway. Further, immune infiltration analysis implied that QSDP's mechanism in treating DM-HF might involve immune-mediated inflammation and crucial signaling pathways. Additionally, molecular docking studies showed that the active substances in QSDP have strong binding affinities with these identified targets. This research presents a new model for addressing DM-HF through the use of QSDP, providing novel insights into incorporating traditional Chinese medicine (TCM) principles in the clinical treatment of DM-HF. The implications of these findings are substantial for both clinical application and further scientific inquiry.


Asunto(s)
Biología Computacional , Medicamentos Herbarios Chinos , Insuficiencia Cardíaca , Simulación del Acoplamiento Molecular , Farmacología en Red , Mapas de Interacción de Proteínas , Medicamentos Herbarios Chinos/farmacología , Medicamentos Herbarios Chinos/uso terapéutico , Humanos , Insuficiencia Cardíaca/tratamiento farmacológico , Biología Computacional/métodos , Mapas de Interacción de Proteínas/efectos de los fármacos , Diabetes Mellitus/tratamiento farmacológico , Medicina Tradicional China/métodos , Ontología de Genes
17.
Antiviral Res ; 229: 105956, 2024 09.
Artículo en Inglés | MEDLINE | ID: mdl-38969237

RESUMEN

Baloxavir marboxil (baloxavir), approved as an anti-influenza drug in Japan in March 2018, can induce reduced therapeutic effectiveness due to PA protein substitutions. We assessed PA substitutions in clinical samples from influenza-infected children and adults pre- and post-baloxavir treatment, examining their impact on fever and symptom duration. During the 2022-2023 influenza season, the predominant circulating influenza subtype detected by cycling-probe RT-PCR was A(H3N2) (n = 234), with a minor circulation of A(H1N1)pdm09 (n = 10). Of the 234 influenza A(H3N2) viruses collected prior to baloxavir treatment, 2 (0.8%) viruses carry PA/I38T substitution. One virus was collected from a toddler and one from an adult, indicating the presence of viruses with reduced susceptibility to baloxavir, without prior exposure to the drug. Of the 54 paired influenza A(H3N2) viruses collected following baloxavir treatment, 8 (14.8%) viruses carried E23 K/G, or I38 M/T substitutions in PA. Variant calling through next-generation sequencing (NGS) showed varying proportions (6-100 %), a polymorphism and a mixture of PA/E23 K/G, and I38 M/T substitutions in the clinical samples. These eight viruses were obtained from children aged 7-14 years, with a median fever duration of 16.7 h and a median symptom duration of 93.7 h, which were similar to those of the wild type. However, the delayed viral clearance associated with the emergence of PA substitutions was observed. No substitutions conferring resistance to neuraminidase inhibitors were detected in 37 paired samples collected before and following oseltamivir treatment. These findings underscore the need for ongoing antiviral surveillance, informing public health strategies and clinical antiviral recommendations for seasonal influenza.


Asunto(s)
Sustitución de Aminoácidos , Antivirales , Dibenzotiepinas , Farmacorresistencia Viral , Subtipo H3N2 del Virus de la Influenza A , Gripe Humana , Morfolinas , Piridonas , Triazinas , Proteínas Virales , Humanos , Dibenzotiepinas/uso terapéutico , Dibenzotiepinas/farmacología , Gripe Humana/tratamiento farmacológico , Gripe Humana/virología , Subtipo H3N2 del Virus de la Influenza A/genética , Subtipo H3N2 del Virus de la Influenza A/efectos de los fármacos , Subtipo H3N2 del Virus de la Influenza A/enzimología , Triazinas/uso terapéutico , Triazinas/farmacología , Japón , Antivirales/farmacología , Antivirales/uso terapéutico , Morfolinas/uso terapéutico , Farmacorresistencia Viral/genética , Niño , Adulto , Preescolar , Adolescente , Proteínas Virales/genética , ARN Polimerasa Dependiente del ARN/genética , Femenino , Masculino , Tiepinas/uso terapéutico , Tiepinas/farmacología , Lactante , Persona de Mediana Edad , Estaciones del Año , Piridinas/uso terapéutico , Piridinas/farmacología , Adulto Joven , Subtipo H1N1 del Virus de la Influenza A/genética , Subtipo H1N1 del Virus de la Influenza A/efectos de los fármacos , Anciano
18.
Nano Lett ; 24(29): 8818-8825, 2024 Jul 24.
Artículo en Inglés | MEDLINE | ID: mdl-38985501

RESUMEN

Stationary energy storage infrastructure based on zinc-ion transport and storage chemistry is attracting more attention due to favorable metrics, including cost, safety, and recycling feasibility. However, splitting water and liquid electrolyte fluidity lead to cathode dissolution and Zn corrosion, resulting in rapid attenuation of the capacity and service life. Herein, a new architecture of solid-state electrolytes with high zinc ionic conductivity at room temperature was prepared via solidification of deep eutectic solvents utilizing MXene as nucleation additives. The ionic conductivity of MXene/ZCEs reached 6.69 × 10-4 S cm-1 at room temperature. Dendrite-free Zn plating/stripping with high reversibility can remain for over 2500 h. Subsequently, the fabricated solid-state zinc-ion battery with eliminated HER and suppressed Zn dendrites exhibited excellent cycling performance and could work normally in a range from -10 to 60 °C. This design inspired by eutectic solidification affords new insights into the multivalent solid electrochemistry suffering from slow ion migration.

19.
BMC Pulm Med ; 24(1): 368, 2024 Jul 30.
Artículo en Inglés | MEDLINE | ID: mdl-39080576

RESUMEN

BACKGROUND: Hepatic steatosis and its related complications are risk factors for multiple respiratory diseases; however, the causal relationship between metabolic dysfunction-associated steatotic liver disease (MASLD) and pulmonary function remains controversial. We aimed to identify it using a national cohort and Mendelian randomization (MR). METHODS: We enrolled 30,442 participants from the 2007 to 2012 National Health and Nutrition Examination Survey. Demographics, pulmonary function indices (forced expiratory volume in 1 s [FEV1], forced vital capacity [FVC]), and variables used to calculate the liver fat score (LFS) were collected. A two-sample MR analysis employing the summary data of genome-wide association studies on MASLD and FEV1/FVC, chronic obstructive pulmonary disease (COPD), and asthma from the Finngen Biobank and Medical Research Council Integrative Epidemiology Unit was performed. RESULTS: A total of 3,462 participants, 1,335 of whom had MASLD (LFS > -0.640), were finally included in the study. The FEV1 (3,204.7 vs. 3,262.5 ml, P = 0.061), FVC (4,089.1 vs. 4,143.8 ml, P = 0.146), FEV1/FVC ratio (78.5% vs. 78.8%, P = 0.233), and FEV1/predicted FEV1 ratio (146.5% vs. 141.7%, P = 0.366) were not significantly different between people with MASLD and those without. Additionally, the MR analysis suggested no causal correlation between MASLD and FEV1/FVC (P = 0.817), MASLD and COPD (P = 0.407), and MASLD and asthma (P = 0.808). Reverse MR studies showed no causal relationships yet (all P > 0.05). CONCLUSION: Our study provides convincing evidence that there is no causal association between MASLD and pulmonary function.


Asunto(s)
Asma , Estudio de Asociación del Genoma Completo , Análisis de la Aleatorización Mendeliana , Encuestas Nutricionales , Enfermedad Pulmonar Obstructiva Crónica , Humanos , Masculino , Femenino , Persona de Mediana Edad , Asma/genética , Asma/fisiopatología , Asma/epidemiología , Enfermedad Pulmonar Obstructiva Crónica/genética , Enfermedad Pulmonar Obstructiva Crónica/fisiopatología , Enfermedad Pulmonar Obstructiva Crónica/epidemiología , Capacidad Vital , Volumen Espiratorio Forzado , Anciano , Adulto , Factores de Riesgo , Pulmón/fisiopatología , Hígado Graso/genética , Hígado Graso/fisiopatología , Pruebas de Función Respiratoria
20.
Environ Sci Pollut Res Int ; 31(31): 44348-44360, 2024 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-38951394

RESUMEN

Aluminum electrolyte is a necessity for aluminum reduction cells; however, its stock is rising every year due to several factors, resulting in the accumulation of solid waste. Currently, it has become a favorable material for the resources of lithium, potassium, and fluoride. In this study, the calcification roasting-two-stage leaching process was introduced to extract lithium and potassium separately from aluminum electrolyte wastes, and the fluoride in the form of CaF2 was recycled. The separation behaviors of lithium and potassium under different conditions were investigated systematically. XRD and SEM-EDS were used to elucidate the phase evolution of the whole process. During calcification roasting-water leaching, the extraction efficiency of potassium was 98.7% under the most suitable roasting parameters, at which the lithium extraction efficiency was 6.6%. The mechanism analysis indicates that CaO combines with fluoride to form CaF2, while Li-containing and K-containing fluorides were transformed into water-insoluble LiAlO2 phase and water-soluble KAlO2 phase, respectively, thereby achieving the separation of two elements by water leaching. In the second acid-leaching stage, the extraction efficiency of lithium was 98.8% from water-leached residue under the most suitable leaching conditions, and CaF2 was obtained with a purity of 98.1%. The present process can provide an environmentally friendly and promising method to recycle aluminum electrolyte wastes and achieve resource utilization.


Asunto(s)
Aluminio , Fluoruros , Litio , Potasio , Fluoruros/química , Litio/química , Aluminio/química , Potasio/química , Electrólitos/química , Reciclaje
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