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1.
ACS Appl Mater Interfaces ; 16(15): 18843-18854, 2024 Apr 17.
Artigo em Inglês | MEDLINE | ID: mdl-38586920

RESUMO

Sulfide solid-state electrolytes have garnered considerable attention owing to their notable ionic conductivity and mechanical properties. However, achieving an electrolyte characterized by both high ionic conductivity and a stable interface between the electrode and electrolyte remains challenging, impeding its widespread application. In this work, we present a novel sulfide solid-state electrolyte, Li3.04P0.96Zn0.04S3.92F0.08, prepared through a solid-phase reaction, and explore its usage in all-solid-state lithium sulfur batteries (ASSLSBs). The findings reveal that the Zn, F co-doped solid-state electrolyte exhibits an ionic conductivity of 1.23 × 10-3 S cm-1 and a low activation energy (Ea) of 9.8 kJ mol-1 at room temperature, illustrating the aliovalent co-doping's facilitation of Li-ion migration. Furthermore, benefiting from the formation of a LiF-rich interfacial layer between the electrolyte and the Li metal anode, the Li/Li3.04P0.96Zn0.04S3.92F0.08/Li symmetrical cell exhibits critical current densities (CCDs) of up to 1 mA cm-2 and maintains excellent cycling stability. Finally, the assembled ASSLSBs exhibit an initial discharge capacity of 1295.7 mAh g-1 at a rate of 0.05 C and at room temperature. The cell maintains a capacity retention of 70.5% for more than 600 cycles at a high rate of 2 C, representing a substantial improvement compared to the cell with Li3PS4. This work provides a new idea for the design of solid-state electrolytes and ASSLSBs.

2.
Reprod Sci ; 2024 Mar 07.
Artigo em Inglês | MEDLINE | ID: mdl-38453773

RESUMO

This study aims to investigate the effect and mechanism of dehydroepiandrosterone (DHEA) on diminished ovarian reserve (DOR) by modulating the AMPK-SIRT1 signaling and mitophagy in rats. Three-month-old female Sprague-Dawley (SD) rats were randomized and injected intraperitoneally with sesame oil as the control or deoxyvinylcyclohexene (VCD) to induce DOR. The VCD-injected rats were randomized and injected subcutaneously with vehicle as the model group or with DHEA for 21 days as the DHEA group. After being identified in proestrus, rat blood samples were collected to prepare serum samples, and their ovarian tissues were dissected. Compared with the controls, significantly lower serum estradiol (E2), anti-Müllerian hormone (AMH), and inhibin B (IHNB) and higher follicle-stimulating hormone (FSH) and luteinizing hormone (LH) levels were detected in the model group (DOR rats). The model group of rats displayed an increase in follicular atresia and a decrease in ovarian volume and the number of growing follicles and corpus luteum, accompanied by increased frequency of oocyte apoptosis and reduced levels of mitochondrial function. Furthermore, significantly higher levels of the AMPK-SIRT1 signaling and mitophagy were observed in the ovaries of rats in the model group. In contrast, treatment with DHEA significantly ameliorated the hormone disorder and morphological changes in the ovaries, reduced the frequency of apoptotic oocytes, and improved mitochondrial function in the ovaries of DOR rats. Mechanistically, DHEA treatment significantly attenuated the AMPK-SIRT1 signaling and mitophagy in the ovaries of DOR rats. DHEA treatment reduced the severity of DOR and enhanced ovarian reserve function by attenuating the AMPK-SIRT1 signaling and mitophagy in the ovaries of rats.

3.
New Phytol ; 242(3): 1172-1188, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38501463

RESUMO

Somatic cell totipotency in plant regeneration represents the forefront of the compelling scientific puzzles and one of the most challenging problems in biology. How somatic embryogenic competence is achieved in regeneration remains elusive. Here, we discover uncharacterized organelle-based embryogenic differentiation processes of intracellular acquisition and intercellular transformation, and demonstrate the underlying regulatory system of somatic embryogenesis-associated lipid transfer protein (SELTP) and its interactor calmodulin1 (CAM1) in cotton as the pioneer crop for biotechnology application. The synergistic CAM1 and SELTP exhibit consistent dynamical amyloplast-plasmodesmata (PD) localization patterns but show opposite functional effects. CAM1 inhibits the effect of SELTP to regulate embryogenic differentiation for plant regeneration. It is noteworthy that callus grafting assay reflects intercellular trafficking of CAM1 through PD for embryogenic transformation. This work originally provides insight into the mechanisms responsible for embryogenic competence acquisition and transformation mediated by the Ca2+/CAM1-SELTP regulatory pathway, suggesting a principle for plant regeneration and cell/genetic engineering.


Assuntos
Proteínas de Transporte , Plantas , Organelas
4.
Mol Genet Genomics ; 299(1): 38, 2024 Mar 22.
Artigo em Inglês | MEDLINE | ID: mdl-38517563

RESUMO

Kinesin is a kind of motor protein, which interacts with microtubule filaments and regulates cellulose synthesis. Cotton fiber is a natural model for studying the cellular development and cellulose synthesis. Therefore, a systematic research of kinesin gene family in cotton (Gossypium spp.) will be beneficial for both understanding the function of kinesin protein and assisting the fiber improvement. Here, we aimed to identify the key kinesin genes present in cotton by combining genome-wide expression profile data, association mapping, and public quantitative trait loci (QTLs) in upland cotton (G. hirsutum L.). Results showed that 159 kinesin genes, including 15 genes of the kinesin-13 gene subfamily, were identified in upland cotton; of which 157 kinesin genes can be traced back to the diploid ancestors, G. raimondii and G. arboreum. Using a combined analysis of public QTLs and genome-wide expression profile information, there were 29 QTLs co-localized together with 28 kinesin genes in upland cotton, including 10 kinesin-13 subfamily genes. Genome-wide expression profile data indicated that, among the 28 co-localized genes, seven kinesin genes were predominantly expressed in fibers or ovules. By association mapping analysis, 30 kinesin genes were significantly associated with three fiber traits, among which a kinesin-13 gene, Ghir_A11G028430, was found to be associated with both cotton boll length and lint weight, and one kinesin-7 gene, Ghir_D04G017880 (Gh_Kinesin7), was significantly associated with fiber strength. In addition, two missense mutations were identified in the motor domain of the Gh_Kinesin7 protein. Overall, the kinesin gene family seemingly plays an important role in cotton fiber and boll development. The exploited kinesin genes will be beneficial for the genetic improvement of fiber quality and yield.


Assuntos
Gossypium , Cinesinas , Gossypium/genética , Cinesinas/genética , Fibra de Algodão , Locos de Características Quantitativas/genética , Fenótipo , Celulose
5.
Mol Genet Genomics ; 299(1): 2, 2024 Jan 11.
Artigo em Inglês | MEDLINE | ID: mdl-38200363

RESUMO

Kinesin is a kind of motor protein, which interacts with microtubule filaments and regulates cellulose synthesis. Cotton fiber is a natural model for studying the cellular development and cellulose synthesis. Therefore, a systematic research of Kinesin gene family in cotton (Gossypium spp.) will be beneficial for both understanding the function of Kinesin protein and assisting the fiber improvement. Here, we aimed to identify the key Kinesin genes present in cotton by combining genome-wide expression profile data, association mapping, and public quantitative trait loci (QTLs) in upland cotton (Gossypium hirsutum L.). Results showed that 159 Kinesin genes, including 15 genes of the Kinesin-13 gene subfamily, were identified in upland cotton; of which 157 Kinesin genes can be traced back to the diploid ancestors, G. raimondii and G. arboreum. Using a combined analysis of public QTLs and genome-wide expression profile information, there were 29 QTLs co-localized together with 28 Kinesin genes in upland cotton, including 10 Kinesin-13 subfamily genes. Genome-wide expression profile data indicated that, among the 28 co-localized genes, seven Kinesin genes were predominantly expressed in fibers or ovules. By association mapping analysis, 30 Kinesin genes were significantly associated with three fiber traits, among which a Kinesin-13 gene, Ghir_A11G028430, was found to be associated with both cotton boll length and lint weight, and one Kinesin-7 gene, Ghir_D04G017880 (Gh_Kinesin7), was significantly associated with fiber strength. In addition, two missense mutations were identified in the motor domain of the Gh_Kinesin7 protein. Overall, the Kinesin gene family seemingly plays an important role in cotton fiber and boll development. The exploited Kinesin genes will be beneficial for the genetic improvement of fiber quality and yield.


Assuntos
Gossypium , Cinesinas , Gossypium/genética , Cinesinas/genética , Locos de Características Quantitativas/genética , Fibra de Algodão , Celulose
6.
Nanoscale ; 16(3): 961-977, 2024 Jan 18.
Artigo em Inglês | MEDLINE | ID: mdl-38108437

RESUMO

Covalent organic frameworks (COF) are porous crystalline polymers connected by covalent bonds. Due to their inherent high specific surface area, tunable pore size, and good stability, they have attracted extensive attention from researchers. In recent years, COF membrane materials developed rapidly, and a large amount of research work has been presented on the preparation methods, properties, and applications of COF membranes. This review focuses on the research on independent/pure continuous COF membranes. First, based on the membrane formation mechanism, COF membrane preparation methods are categorized into two main groups: bottom-up and top-down. Four methods are presented, namely, solvothermal, interfacial polymerization, steam-assisted conversion, and layer by layer. Then, the aperture, hydrophilicity/hydrophobicity and surface charge properties of COF membranes are summarized and outlined. According to the application directions of gas separation, water treatment, organic solvent nanofiltration, pervaporation and energy, the latest research results of COF membranes are presented. Finally, the challenges and future directions of COF membranes are summarized and an outlook provided. It is hoped that this work will inspire and motivate researchers in related fields.

7.
Adv Sci (Weinh) ; 10(35): e2305523, 2023 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-37875400

RESUMO

Interfacial solar steam generation (ISSG) is the main method to get fresh water from seawater or wastewater. The balance between evaporation rate and salt resistance is still a major challenge for ISSG. Herein, a wood aerogel island solar evaporator (WAISE) with tunable surface structure and wettability by synthesizing poly(n-isopropylacrylamide)-modified multi-walled carbon nanotube photothermal layers. Compared to dense surface structure evaporators, interfacial moisture transport, thermal localization, and surface water vapor diffusion of WAISE are greatly promoted, and the evaporation rate of WAISE increased by 87.64%. WAISE allows for record performance of 200 h continuous operation in 20% NaCl solution without salt accumulation. In addition, the photo-thermal-electric device is developed based on WAISE with continuous water purification, power generation, and irrigation functions. This work provides a new direction for the development of multifunctional water purification systems.

8.
Artigo em Inglês | MEDLINE | ID: mdl-37883761

RESUMO

Background: Diminished ovarian reserve (DOR) can lead to amenorrhea, infertility, and even the development of premature ovarian insufficiency, severely affecting the quality of life for women. Therefore, it is important to determine the main components of Tonifying Yang Formula, analyze the active substances and effective targets for treating DOR using Tonifying Yang Formula, and explore its potential mechanisms of action. Objective: The study is aim to determine the main components of Tonifying Yang Formula, analyze the active substances and effective targets for treating DOR using Tonifying Yang Formula, and explore its potential molecular mechanisms of action, providing important theoretical basis for clinical application. Methods: The main active components of Tonifying Yang Formula and their potential therapeutic targets for DOR were searched using the Chinese Medicine Systems Pharmacology Database and Analysis Platform, BATMAN-TCM, GeneCards, OMIM, and Uniprot databases. The protein-protein interaction network of shared targets between drugs and diseases was constructed using the STRING database. The shared targets of drugs and diseases were subjected to GO analysis and KEGG pathway enrichment analysis using the DAVID database. AutoDock Vina was used to perform molecular docking between the active substances and key targets of the drug to validate their interaction activities. Results: The key chemical components in the Tonifying Yang Formula for DOR treatment include quercetin, luteolin, beta-sitosterol, stigmasterol, and kaempferol. The 164 key targets for treating DOR with Tonifying Yang Formula included AKT1, TNF, JUN, TP53, IL6, IL1B, EGFR, VEGFA, INS, and CASP3, among others. GO enrichment analysis revealed that the Tonifying Yang Formula mainly regulates gene expression positively, negatively regulates the apoptotic process, and affects signal transduction. KEGG pathway enrichment analysis showed that Tonifying Yang Formula is mainly involved in cancer-related pathways, the AGE-RAGE signaling pathway in diabetic complications, prostate cancer, lipid and atherosclerosis, fluid shear stress and atherosclerosis, and the IL-17 signaling pathway. Molecular docking results indicated that the core components of the Tonifying Yang Formula had higher docking energies and stable binding with targets such as AKT1, IL6, JUN, TNF, and TP53. This study selected the PI3K/AKT signaling pathway for validation. Through experimental research, we found that Tonifying Yang Formula could improve ovarian reserve function by activating the PI3K/AKT signaling pathway. Conclusions: The potential mechanism of Tonifying Yang Formula therapy for DOR may be related to the influence of Chinese herbal compounds on pathways such as AKT1, IL6, JUN, TNF, and TP53, regulating the proliferation and apoptosis of ovarian granulosa cells, maintaining the function of the ovarian corpus luteum, regulating the secretion of related hormones, and alleviating ovarian tissue inflammation.

9.
Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi ; 37(8): 929-936, 2023 Aug 15.
Artigo em Chinês | MEDLINE | ID: mdl-37586791

RESUMO

Objective: To construct polyhydroxyalkanoate (PHA) microspheres loaded with bone morphogenetic protein 2 (BMP-2) and human ß-defensin 3 (HBD3), and evaluate the antibacterial activity of microspheres and the effect of promoting osteogenic differentiation, aiming to provide a new option of material for bone tissue engineering. Methods: The soybean lecithin (SL)-BMP-2 and SL-HBD3 were prepared by SL-mediated introduction of growth factors into polyesters technology, and the functional microsphere (f-PMS) containing BMP-2 and HBD3 were prepared by microfluidic technology, while pure microsphere (p-PMS) was prepared by the same method as the control. The morphology of microspheres was observed by scanning electron microscopy and the water absorption was detected; the release curves of BMP-2 and HBD3 in f-PMS were detected by ELISA kit. The antibacterial effect of microspheres in Staphylococcus aureus and Escherichia coli was tested with the LIVE/DEADTM BacLightTM bacterial staining kit; the biocompatibility of microspheres was tested using Transwell and cell counting kit 8 (CCK-8). The effect of microspheres on osteogenic differentiation was determined by collagen type Ⅰ (COL-1) immunofluorescence staining and alkaline phosphatase (ALP) concentration. Results: In this experiment, the f-PMS and p-PMS were successfully constructed. Morphological characteristics showed that p-PMS surface was rough and distributed with micropores of 1-3 µm, while f-PMS surface was smooth and existed white granular material. There was no significant difference in water absorption between the two groups (P>0.05). The release curves of BMP-2 and HBD3 in the f-PMS and p-PMS were basically the same, showing both early sudden release and late slow release. The antibacterial activity of f-PMS was significantly higher than that of p-PMS in the test that against Staphylococcus aureus and Escherichia coli (P<0.05), but there was no significant difference in biocompatibility between the two groups (P>0.05). The results of osteogenic differentiation of human BMSCs showed that the fluorescence intensity of osteogenic specific protein COL-1 of f-PMS was significantly higher than that in p-PMS, and the activity of ALP in f-PMS was also significantly higher than that in p-PMS (P<0.05). Conclusion: The p-PHA have good antibacterial activity and biocompatibility, and can effectively promote the osteogenic differentiation of human BMSCs, which is expected to be applied to bone tissue engineering in the future.


Assuntos
Osteogênese , Poli-Hidroxialcanoatos , Humanos , Microesferas , Fosfatase Alcalina , Antibacterianos/farmacologia , Corantes , Escherichia coli
10.
ACS Appl Mater Interfaces ; 15(34): 40496-40507, 2023 Aug 30.
Artigo em Inglês | MEDLINE | ID: mdl-37594748

RESUMO

Due to the high energy density, high safety, and low cost of sulfur, all-solid-state lithium-sulfur batteries (ASSLSBs) are considered one of the most promising next-generation energy storage devices. Nevertheless, the insufficient interfacial contact between solid electrolytes (SEs) and the active material of sulfur leads to inadequate electronic and ionic conduction, which increases interfacial resistance and capacity decay. In this paper, commercial carbon nanotubes (CNTs) are activated to form porous-CNTs (P-CNTs), which are used as sulfur-bearing matrix, forming S@P-CNTs-based composite cathodes for ASSLSBs. Compared with CNTs, P-CNTs possess a larger specific surface area and more oxygen-containing groups, providing enhanced interfacial contact and stability between S@P-CNTs and Li6PS5Cl SE, which are confirmed by scanning electron microscopy, X-ray photoelectron spectroscopy, and density functional theory calculations. Moreover, P-CNTs can form a 3D conductive network in the composite cathodes, facilitating the migration of electrons and the diffusion of ions, as well as improving the utilization of sulfur. As a result, the S@P-CNTs-based ASSLSBs display excellent electrochemical performances, especially rarely reported ultralong lifespan, which deliver a capacity of 1099.2 mA h g-1 at a current density of 1.34 mA cm-2, and remarkably maintain 70.4% of the initial capacity over 1400 cycles.

11.
Commun Biol ; 6(1): 724, 2023 07 14.
Artigo em Inglês | MEDLINE | ID: mdl-37452081

RESUMO

Cardiac myxoma (CM) is the most common benign cardiac tumor, and most CMs are left atrial myxomas (LAMs). Six variations of KIF1C, c.899 A > T, c.772 T > G, c.352 A > T, c.2895 C > T, c.3049 G > A, and c.*442_*443dup in left atrial myxoma tissues are identified by whole-exome sequencing (WES) and Sanger sequencing. RNA-seq and function experiments show the reduction of the expression of KIF1C and PRKAR1A caused by rare variations of KIF1C. KIF1C is observed to be located in the nucleus, bind to the promoter region of PRKAR1A, and regulate its transcription. Reduction of KIF1C decreases PRKAR1A expression and activates the PKA, which causes an increase in ERK1/2 phosphorylation and SRC-mediated STAT3 activation, a reduction of CDH1, TP53, CDKN1A, and BAX, and eventually promotes tumor formation both in vitro and in vivo. The results suggest that inhibition of KIF1C promotes the pathogenesis of LAM through positive feedback formed by the crosstalk between KIF1C and PRKAR1A.


Assuntos
Fibrilação Atrial , Neoplasias Cardíacas , Mixoma , Humanos , Mixoma/genética , Mixoma/metabolismo , Neoplasias Cardíacas/genética , Fosforilação , Cinesinas/metabolismo , Subunidade RIalfa da Proteína Quinase Dependente de AMP Cíclico/genética , Subunidade RIalfa da Proteína Quinase Dependente de AMP Cíclico/metabolismo
12.
Chemosphere ; 335: 139086, 2023 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-37263513

RESUMO

Although advanced oxidation processes (AOPs) based on persulfate (PS) is an attractive approach for repairing polycyclic aromatic hydrocarbons (PAHs) contaminated soils, limited oxidizability of PAHs and efficient in-situ activation of PS hinder its practical applications. In this study, we comprehensively examined the contributions of five representative surfactants on the oxidative remediation of PAHs-contaminated soil in terms of degradation kinetics of the pollutants, and further proposed an innovative coupling strategy of surfactant-enhanced thermally activated PS remediating PAHs-contaminated soil. The results showed that the degradation process of PAHs in soil was significantly facilitated only via adding sodium dodecyl benzenesulfonate (SDBS) and fitted the pseudo-first-order kinetic pattern. The removal of phenanthrene (PHE) reached 98.56% at 50 mM PS, 50 °C, 5 g L-1 SDBS and 48 h reaction time, accompanying an increase of 25% in reaction rate constant from 0.0572 h-1 (without SDBS) to 0.0715 h-1. More importantly, SDBS-enhanced thermally activated PS degrading PAHs with higher benzene rings were more effective as the reaction rate constants of pyrene (PYR) and benzo(a)anthracene (BaA) were significantly increased by 49.40% and 56.86%. Additionally, only appropriate dosages (5-10 g L-1) of SDBS facilitated the oxidative degradation of PHE, as well as the aging time of contaminant-soil contact slowed down the enhancement of oxidative degradation of PHE by SDBS. Scavenger experiments demonstrated that SO4·- and 1O2 were the dominant reactive oxygen species. Finally, a possible oxidative degradation pathway of PHE was proposed, and the toxicity of derived intermediates got alleviation by the assessment using the Toxicity Estimation Software Tool. This investigation was promising for in situ scale-up remediation of PAHs-contaminated soil.


Assuntos
Hidrocarbonetos Policíclicos Aromáticos , Surfactantes Pulmonares , Poluentes do Solo , Tensoativos , Hidrocarbonetos Policíclicos Aromáticos/análise , Biodegradação Ambiental , Solo , Poluentes do Solo/análise
13.
Theriogenology ; 207: 1-10, 2023 Sep 01.
Artigo em Inglês | MEDLINE | ID: mdl-37245256

RESUMO

Vascular endothelial growth factor (VEGF) is crucial for follicle development through the regulation of granulosa cell (GC) function in some mammals, but its mechanism is unclear in yak (Bos grunniens). Therefore, the objectives of this study were to investigate the effects of VEGF on the viability, apoptosis and steroidogenesis of yak GCs. First, we investigated the localization of VEGF and its receptor (VEGFR2) in yak ovaries by immunohistochemistry analysis and evaluated the effect of culture medium containing different VEGF concentrations and culture times on the viability of yak GCs by Cell Counting Kit-8. Then, optimal treatment with 20 ng/mL VEGF for 24 h was selected to analyze the effects of this compound on intracellular reactive oxygen species levels by DCFH-DA kit, cell cycle and apoptosis by flow cytometry, steroidogenesis by ELISA kit and the expression of the related genes by RT‒qPCR. The results showed that VEGF and VEGFR2 were highly coexpressed in GCs and theca cells. GCs cultured in medium containing 20 ng/mL VEGF for 24 h significantly improved cell viability, decreased ROS production, promoted the transition from G1 phase to S phase (P < 0.05), increased the expression of the CCND1 (P < 0.05), CCNE1, CDK2, CDK4, and PCNA genes (P < 0.01) and decreased the expression of the P53 gene (P < 0.05). This treatment significantly reduced GC apoptosis (P < 0.05) by promoting the expression of BCL2 and GDF9 (P < 0.01) and inhibiting the expression of BAX and CASPASE3 (P < 0.05). VEGF promoted progesterone secretion (P < 0.05) accompanied by increased expression of HSD3B, StAR and CYP11A1 (P < 0.05). Taken together, our findings highlight the beneficial influence exerted by VEGF in improving GC viability and reducing ROS production and the apoptosis rate through the modulation of related gene expression.


Assuntos
Células da Granulosa , Fator A de Crescimento do Endotélio Vascular , Feminino , Bovinos , Animais , Fator A de Crescimento do Endotélio Vascular/metabolismo , Espécies Reativas de Oxigênio/metabolismo , Fatores de Crescimento do Endotélio Vascular/metabolismo , Fatores de Crescimento do Endotélio Vascular/farmacologia , Apoptose , Células Cultivadas , Mamíferos
14.
Theriogenology ; 203: 61-68, 2023 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-36972666

RESUMO

Supplementation with acetyl-l-carnitine (ALC) during in vitro maturation significantly improves the rates of oocyte cleavage and morula and blastocyst formation in sheep and buffalo; however, the mode of action of ALC in improving oocyte competence is not completely understood. Therefore, the aim of this study was to investigate the effects of ALC on proliferation, antioxidant properties, lipid droplet accumulation and steroid hormone secretion in yak (Bos grunniens) granulosa cells (GCs). Yak GCs were identified using FSHR immunofluorescence. The cells were treated with different concentrations of ALC, cell proliferation was detected by cell counting kit-8, and the optimal concentration and treatment time were determined for subsequent experiments. Then, reactive oxygen species (ROS) were detected by a DCFH-DA probe, and lipid droplet accumulation was observed by oil red O staining. Estradiol (E2) and progesterone (P4) in the medium were detected by ELISA, and the expression of genes related to cell proliferation, apoptosis, the cell cycle, antioxidants and steroid synthesis was determined by RT‒qPCR. The results showed that 1 mM ALC treatment for 48 h was the optimum treatment. It significantly increased cell viability (P < 0.05), significantly decreased the amount of ROS and lipid droplet content, and promoted P4 and E2 secretion (P < 0.05) of yak GCs. RT‒qPCR results verified that GCs treated with 1 mM ALC for 48 h significantly increased the expression of genes related to anti-apoptosis and the cell cycle (BCL-2, PCNA, CCND1 and CCNB1), antioxidants (CAT, SOD2 and GPX1), and E2 and P4 secretion (StAR, CYP19A1 and HSD3B1) (P < 0.05), but it significantly decreased the expression of apoptosis genes (BAX and P53) (P < 0.05). In conclusion, ALC increased the viability of yak GCs, reduced the amount of ROS and lipid droplets, increased P4 and E2 synthesis and affected the expression of related genes in yak GCs.


Assuntos
Acetilcarnitina , Células da Granulosa , Feminino , Bovinos , Animais , Ovinos , Acetilcarnitina/farmacologia , Espécies Reativas de Oxigênio/metabolismo , Progesterona/farmacologia , Proliferação de Células , Expressão Gênica , Regulação da Expressão Gênica
15.
J Hazard Mater ; 446: 130729, 2023 Mar 15.
Artigo em Inglês | MEDLINE | ID: mdl-36621295

RESUMO

The massive discharge of oily wastewater and oil spills are causing serious pollution to water resources. It is urgent to require clean and efficient method of purifying oily emulsions. Although the separation membranes with selective wettability have been widely used in the efficient purification of oil/water emulsions. It is still very challenging to develop functional films that are environmentally friendly, fouling resistant, inexpensive, easy to prepare, easy to scale, and highly efficient. Cellulose nanocrystalline-based composite membranes (CCM) were prepared by surface-initiated atom transfer radical polymerization (SATRP) and vacuum self-assembly. The prepared CCM is superhydrophilic and superoleophobic underwater due to the hydrophilic nature of the modified cellulose-nanocrystalline and the micro-nano surface structure. The CCM shows high separation efficiency (> 99.9 %), high flux (16,692 L-1·m-2·h-1·bar-1) for surfactant-stabilized oil-in-water emulsions, good cycle stability and anti-fouling performance. This biomass-derived membrane is green, cheap, easy to manufacture, scalable, super-wettability, and durability, it promises to be an alternative to separation membranes in today's market.

16.
J Hazard Mater ; 441: 129900, 2023 01 05.
Artigo em Inglês | MEDLINE | ID: mdl-36096060

RESUMO

Oily sewage discharged from indiscriminate industrial and frequent oil spills have become a serious global problem. There is an urgent need to separate stable oil/water emulsions by efficient and environmentally friendly methods. Membrane separation technology has the advantages of low energy consumption and low cost, thus is an effective solution to the problems of oily wastewater. However, the manufacture of multifunctional membranes with high efficiency, high flux and self-cleaning using renewable materials remains a challenge. Herein, three-dimensional (3D) smart membranes with switchable superhydrophobic-hydrophilic surfaces were prepared by grafting photo-responsive poly-spiropyran (PSP) on wood-based substrates via surface atom transfer radical polymerization. This novel membrane can efficiently separate stabilized water-in-oil and oil-in-water emulsions due to reversible hydrophilic-hydrophobic transition by switching UV and visible light irradiation. Remarkably, after immobilization, the PSP grafted on the wood substrate exhibited a faster photo response effect than the free spiropyran (SP). More importantly, the prepared 3D smart membranes showed exceptional high flux (4392 L•m-2•h-1) and efficiency (above 99.99 %), good cycle stability (99.99 % after 12 times) and durability (available for at least 60 days) for the separation of surfactant-stabilized water-in-oil emulsions. This work opens a new avenue for the design of functional biomass-derived membranes for efficient and sustainable oily wastewater treatment with high flux, easy scale-up, and green regeneration.


Assuntos
Águas Residuárias , Madeira , Benzopiranos , Emulsões/química , Indóis , Nitrocompostos , Óleos/química , Esgotos , Tensoativos/química , Águas Residuárias/química
17.
Anim Biotechnol ; 34(2): 280-287, 2023 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-34353209

RESUMO

Endoplasmic reticulum stress (ERS) plays an important role in regulating the reproductive process of female mammals, mainly involved in follicular atresia and corpus luteum regression. DNA damage induced transcript 3 (DDIT3) is a marker gene of ERS. The objectives of the present study were to clone and analyze the sequence and tissue expression characteristics of DDIT3 gene in female yaks. By reverse transcriptase-polymerase chain reaction (RT-PCR) strategy, we obtained full-length 507-bp DDIT3-cDNA, encoding for 168-aa protein. Yak DDIT3 exhibited highest and least identity with that of bison and horse, respectively. Real-time PCR analyses revealed that the expression level of DDIT3 gene in ovary was higher than that in heart, liver, kidney, spleen, lung, uterus and oviduct (p < 0.05). DDIT3 expression level in ovary and uterus during pregnancy was higher than that in follicular phase, luteal phase and fetus stage. DDIT3 was highly expressed in metaphase II oocytes and granulosa cells than that in germinal vesicle and metaphase I oocytes (p < 0.05), respectively. This is the first molecular characterization and expression patterns of DDIT3 gene in female yaks. These results indicated that the DDIT3 gene possibly plays an important role in regulating ovary function and pregnancy maintenance in yaks.


Assuntos
Atresia Folicular , Ovário , Gravidez , Bovinos , Feminino , Animais , Cavalos , Clonagem Molecular , Ovário/metabolismo , Oócitos , Reação em Cadeia da Polimerase em Tempo Real , Mamíferos
18.
Altern Ther Health Med ; 29(2): 271-281, 2023 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-36350320

RESUMO

Objective: Our aim was to perform a meta-analysis to compare the therapeutic effects of compound Xuanju capsules combined with hormone therapy vs hormone therapy alone in polycystic ovary syndrome (PCOS)-related infertility. Methods: Electronic databases including PubMed, The Cochrane Library, Web of Science, Chinese Biomedical Literature Database (CBM), China National Knowledge Infrastructure (CNKI), Wanfang Data and VIP database were manually searched. The quality of included studies was evaluated based on Cochrane Systematic Review standards, and the valid data were extracted for meta-analysis using RevMan 5.3 software (Cochrane Review). Results: A total of 14 randomized controlled trials (RCTs) including 1249 patients were included in the study. Meta-analysis showed that patients in the compound Xuanju capsule + hormone therapy group had higher estradiol (E2) levels and overall rates of effective treatment than patients in the hormone therapy alone group. Moreover, they exhibited lower levels of luteinizing hormone (LH) and follicle-stimulating hormone (FSH), as well as lower Kupperman scores, than the hormone therapy alone group. Conclusions: The combination of compound Xuanju capsules and hormone therapy is more effective than hormone therapy alone in the treatment of PCOS-related infertility. However, the quality of current studies is low, and high-quality clinical trials are warranted.


Assuntos
Medicamentos de Ervas Chinesas , Infertilidade , Síndrome do Ovário Policístico , Feminino , Humanos , Síndrome do Ovário Policístico/complicações , Síndrome do Ovário Policístico/tratamento farmacológico , Cápsulas , Medicamentos de Ervas Chinesas/uso terapêutico , Hormônios , Ensaios Clínicos Controlados Aleatórios como Assunto
19.
ACS Appl Mater Interfaces ; 14(28): 32112-32123, 2022 Jul 20.
Artigo em Inglês | MEDLINE | ID: mdl-35802395

RESUMO

Lithium-sulfur (Li-S) batteries and lithium-selenium (Li-Se) batteries that contain only one single active element have unique advantages and disadvantages. Inspired by ternary lithium batteries, multielement chalcogenide compounds with integrated advantages may improve upon the performance of lithium-chalcogenide batteries at the source. In this work, activated carbon (AC) with an Al2O3@SiO2 heterojunction is used as the carrier, and the performances and mechanisms of elemental substances (X/AC, X = S, Se, and Te) are studied in ether and ester electrolytes as the basis for preparing multielement chalcogenide composites (SST/AC, SST: S-Se-Te compound). In the ester electrolyte system, SST811/AC (where S/Se/Te = 8:1:1, molar ratio) exhibited the best cycling performance, and the capacity remained at 1024.9 mA h g-1 after 300 cycles. The characterization results revealed the mechanisms and sequences of the gradual liquid-phase reactions of SST/AC in ether electrolytes and the direct solid-phase reactions in ester electrolytes. The active elements in SST/AC fully demonstrated their own functions, enabling the effective construction of new lithium-chalcogenide battery systems. This work provides inspiration for the subsequent research of multielement lithium-chalcogenide batteries and paves the way for their application.

20.
Genes (Basel) ; 13(4)2022 04 14.
Artigo em Inglês | MEDLINE | ID: mdl-35456498

RESUMO

Aortic dissection (AD) is a life-threatening disease with high morbidity and mortality, and effective pharmacotherapeutic remedies for it are lacking. Therefore, AD's molecular pathogenesis and etiology must be elucidated. The aim of this study was to investigate the possible mechanism of mediator complex subunit 12 (human: MED12, mouse: Med12)involvement in AD. Firstly, we examined the expression of MED12 protein (human: MED12, mouse: Med12) in the aortic tissues of AD patients and AD mice. Subsequently, Med12 gene silencing was accomplished with RNA interference (siRNA). The effects of Med12 on AD and the possible biological mechanisms were investigated based on the proliferation, senescence, phenotypic transformation, and its involved signal pathway of mouse aortic smooth muscle cells (MOVAS), s. The results show that the expression of MED12 in the aortae of AD patients and AD mice was decreased. Moreover, the downregulation of Med12 inhibited the proliferation of MOVAS and promoted senescence. Further research found that Med12, as an inhibitor of the TGFß1 signaling pathway, reduced the expression of Med12 and enhanced the activity of the TGFß1 nonclassical signaling pathway, while TGFß1 inhibited the phenotype transformation and proliferation of MOVAS by inhibiting Med12 synthesis. In conclusion, Med12 affected the phenotype, proliferation, and senescence of MOVAS through the TGFß signaling pathway. This study provides a potential new target for the prevention and treatment of AD.


Assuntos
Dissecção Aórtica , Miócitos de Músculo Liso , Dissecção Aórtica/genética , Dissecção Aórtica/patologia , Animais , Aorta/metabolismo , Proliferação de Células/genética , Humanos , Complexo Mediador/genética , Camundongos , Miócitos de Músculo Liso/metabolismo , Transdução de Sinais
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