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1.
BMC Surg ; 24(1): 276, 2024 Oct 01.
Artigo em Inglês | MEDLINE | ID: mdl-39354407

RESUMO

OBJECTIVE: To analyze the effect of transvesical laparoscopic radical prostatectomy (TVLRP) on sexual function and urinary continence. METHOD: The data of 72 patients diagnosed with low-risk and localized prostate cancer, who underwent treatment at our hospital between January 2017 and June 2022, were retrospectively analyzed. All these patients underwent TVLRP under general anesthesia. Their serum prostate-specific antigen (PSA), urinary continence and erectile function were statistically analyzed. RESULTS: The operation went well with no intraoperative difficulties. The average surgical duration of 102 ± 22 min, coupled with the minimal intraoperative blood loss of 100 ± 32 mL, underscored the precision and efficacy of the surgical techniques employed. Following surgery, postoperative pathological assessments confirmed staging, revealing pT2a in 18 cases and pT2b in 54 cases, suggestive of localized tumors. Gleason scores ≤ 6 further indicated well-differentiated tumors, while consistently negative surgical margins affirmed the complete resection of tumors, reducing the likelihood of disease recurrence. Subsequent to the surgical intervention, the the average hospital stay was 13.94.1 days. A comprehensive 12-month follow-up revealed exceptionally high urinary continence rates, with 97.8% and 100% of patients achieving continence at 1 and 3 months postoperatively, respectively. Moreover, progressive improvement in erectile function recovery was observed, with recovery rates at 3, 6, and 12 months postoperatively reaching 82.2%, 88.4%, and 93.5%, respectively. There was no biochemical regression. CONCLUSION: Treatment of low-risk and localized prostate cancer by TVLRP has a satisfactory urinary continence and recovery of erectile function after operation, less and complications and definite tumor-control effect.


Assuntos
Laparoscopia , Prostatectomia , Neoplasias da Próstata , Incontinência Urinária , Humanos , Masculino , Prostatectomia/métodos , Prostatectomia/efeitos adversos , Laparoscopia/métodos , Pessoa de Meia-Idade , Neoplasias da Próstata/cirurgia , Estudos Retrospectivos , Idoso , Incontinência Urinária/etiologia , Incontinência Urinária/prevenção & controle , Disfunção Erétil/etiologia , Disfunção Erétil/prevenção & controle , Resultado do Tratamento
2.
Angew Chem Int Ed Engl ; : e202413593, 2024 Sep 04.
Artigo em Inglês | MEDLINE | ID: mdl-39231378

RESUMO

Selective C-H activation on complex biological macromolecules is a key goal in the field of organic chemistry. It requires thermodynamically challenging chemical transformations to be delivered in mild, aqueous conditions. 5-Methylcytosine (5mC) is a fundamentally important epigenetic modification in DNA that has major implications for biology and has emerged as a vital biomarker. Selective functionalisation of 5mC would enable new chemical approaches to tag, detect and map DNA methylation to enhance the study and exploitation of this epigenetic feature. We demonstrate the first example of direct and selective chemical oxidation of 5mC to 5-formylcytosine (5fC) in DNA, employing a photocatalytic system. This transformation was used to selectively tag 5mC. We also provide proof-of-concept for deploying this chemistry for single-base resolution sequencing of 5mC and genetic bases adenine (A), cytosine (C), guanine (G), thymine (T) in DNA on a next-generation sequencing system. This work exemplifies how photocatalysis has the potential to transform the analysis of DNA.

3.
Hortic Res ; 11(9): uhae186, 2024 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-39247881

RESUMO

The soil-borne bacterial pathogen Ralstonia solanacearum causes significant losses in Solanaceae crop production worldwide, including tomato, potato, and eggplant. To efficiently prevent outbreaks, it is essential to understand the complex interactions between pathogens and the microbiome. One promising mechanism for enhancing microbiome functionality is siderophore-mediated competition, which is shaped by the low iron availability in the rhizosphere. This study explores the critical role of iron competition in determining microbiome functionality and its potential for designing high-performance microbiome engineering strategies. We investigated the impact of siderophore-mediated interactions on the efficacy of Pseudomonas spp. consortia in suppressing R. solanacearum , both in vitro and in vivo. Our findings show that siderophore production significantly enhances the inhibitory effects of Pseudomonas strains on pathogen growth, while other metabolites are less effective under iron-limited conditions. Moreover, siderophores play a crucial role in shaping interactions within the consortia, ultimately determining the level of protection against bacterial wilt disease. This study highlights the key role of siderophores in mediating consortium interactions and their impact on tomato health. Our results also emphasize the limited efficacy of other secondary metabolites in iron-limited environments, underscoring the importance of siderophore-mediated competition in maintaining tomato health and suppressing disease.

4.
Hum Reprod ; 2024 Sep 12.
Artigo em Inglês | MEDLINE | ID: mdl-39270672

RESUMO

STUDY QUESTION: Is there an association between male creatinine levels and time to pregnancy (TTP) in couples planning pregnancy? SUMMARY ANSWER: Low and high male creatinine concentrations were associated with reduced couple fecundity. WHAT IS KNOWN ALREADY: Abundant evidence suggests male creatinine dysfunction is associated with infertility in males with kidney diseases. However, the association of preconception creatinine levels with reduced fecundity among general reproductive-aged couples lacks evidence from an in-depth population study. STUDY DESIGN, SIZE, DURATION: Based on the population-based cohort study from the National Free Preconception Check-up Projects, 4 023 204 couples were recruited and met the inclusion criteria from 1 January 2015 to 31 December 2017. They were planning pregnancy and were followed up every 3 months until achieving pregnancy as detected by gynaecological ultrasonography or were followed up for 1 year for the analysis of TTP. PARTICIPANTS/MATERIALS, SETTING, METHODS: Cox regression models were used to estimate hazard ratios (HRs) and 95% CI for creatinine deciles. Restricted cubic spline regression was adopted for the dose-response relationship of creatinine with HRs. R statistical software was used for data analysis. MAIN RESULTS AND THE ROLE OF CHANCE: Of the included participants, 2 756 538 (68.52%) couples successfully conceived. The median male serum creatinine was 81.50 µmol/l. Compared with the reference group (78.00-81.49 µmol/l) including the median creatinine, fecundity in the first (≤64.89 µmol/l), second (64.90-69.99 µmol/l), third (70.00-73.99 µmol/l), and tenth (≥101.00 µmol/l) deciles decreased by 8%, 5%, 2%, and 1%, respectively (Decile 1 Adjusted HR 0.92, 95% CI 0.91-0.92; Decile 2 Adjusted HR 0.95, 95% CI 0.95-0.96; Decile 3 Adjusted HR 0.98, 95% CI 0.97-0.99; Decile 10 Adjusted HR 0.99, 95% CI 0.98-0.99). An inverse-U-shaped association was consistently presented among males such that non-inferiority for fecundity was shown when creatinine was in the 81.66-104.90 µmol/l range (P for non-linearity < 0.001). For males over 40 years old, the risk of fecundity impairment was more obvious and the recommended range of creatinine levels for TTP was reduced and more narrow, compared with that for younger males. LIMITATIONS, REASONS FOR CAUTION: Not including the time couples spend preparing for pregnancy before enrolment would lead to an overestimation of fecundity; additionally some couples place pregnancy plans on hold due to special emergencies, which would not have been recognized. Due to the lack of information regarding semen quality, psychological factors, sexual intercourse frequencies, and hazardous environmental factors, we could not adjust for these factors. Some variates were self-reported and dichotomized, which were prone to bias. Direct variables reflecting muscle mass and impaired kidney function were lacking. Thus, extrapolation should be done with caution. WIDER IMPLICATIONS OF THE FINDINGS: Male creatinine is associated with couples' fecundity and the relationship varied by age. This study provides a better understanding of the potential implications and significance of different creatinine levels and their association with the clinical significance regarding couples' fecundity. STUDY FUNDING/COMPETING INTEREST(S): This research has received funding from the National Natural Science Foundation of China (Grant No. 81872634), the Basic Research Funds of Central Public Welfare Research Institutes of China (Grant No. 2023GJZ03), the National Key Research and Development Program of China (Grant No. 2016YFC1000307), and the Project of National Research Institute for Family Planning (Grant No. 2018NRIFPJ03), People's Republic of China. The authors have no conflicts of interest to declare. TRIAL REGISTRATION NUMBER: N/A.

5.
Soft Matter ; 2024 Sep 27.
Artigo em Inglês | MEDLINE | ID: mdl-39328163

RESUMO

Biohybrid robots retain the innate biological characteristics and behavioral traits of animals, making them valuable in applications such as disaster relief, exploration of unknown terrains, and medical care. This review aims to comprehensively discuss the evolution of biohybrid robots, their key technologies and applications, and the challenges they face. By analyzing studies conducted on terrestrial, aquatic, and aerial biohybrid robots, we gain a deeper understanding of how these technologies have made significant progress in simulating natural organisms, improving mechanical performance, and intelligent control. Additionally, we address challenges associated with the application of electrical stimulation technology, the precision of neural signal monitoring, and the ethical considerations for biohybrid robots. We highlight the importance of future research focusing on developing more sophisticated and biocompatible control methods while prioritizing animal welfare. We believe that exploring multimodal monitoring and stimulation technologies holds the potential to enhance the performance of biohybrid robots. These efforts are expected to pave the way for biohybrid robotics technology to introduce greater innovation and well-being to human society in the future.

6.
Artigo em Inglês | MEDLINE | ID: mdl-39292582

RESUMO

Ghosting effects typically appear on glass surfaces, as each piece of glass has two contact surfaces causing two slightly offset layers of reflections. In this paper, we propose to take advantage of this intrinsic property of glass surfaces and apply it to glass surface detection, with two main technical novelties. First, we formulate a ghosting image formation model to describe the intensity and spatial relations among the main reflections and the background transmission within the glass region. Based on this model, we construct a new Glass Surface Ghosting Dataset (GSGD) to facilitate glass surface detection, with  âˆ¼ 3.7K glass images and corresponding ghosting masks and glass surface masks. Second, we propose a novel method, called GhostingNet, for glass surface detection. Our method consists of a Ghosting Effects Detection (GED) module and a Ghosting Surface Detection (GSD) module. The key component of our GED module is a novel Double Reflection Estimation (DRE) block that models the spatial offsets of reflection layers for ghosting effect detection. The detected ghosting effects are then used to guide the GSD module for glass surface detection. Extensive experiments demonstrate that our method outperforms the state-of-the-art methods. We will release our code and dataset.

7.
J Clin Lipidol ; 2024 Sep 11.
Artigo em Inglês | MEDLINE | ID: mdl-39307657

RESUMO

BACKGROUND: The present study was performed to determine the association between changes in the HDL-C concentration and incident CVD. METHODS: Time-dependent Cox regression models were used to evaluate the association between changes in the HDL-C concentration and the risk of incident CVD. Participants were followed up from 2015 to 2021. RESULTS: In total, 24,123 participants with a median follow-up of 4.26 years were analyzed, and the mean age of the cohort was 56.24 years, 57.8 % were female, 24.3 % were current smokers, and 12.8 % had a history of alcohol use. Low, normal, and high HDL-C was defined as <40, 40-80, and >80 mg/dL, respectively. The average time for the two HDL-C measurements was 2.8 years,compared with participants whose HDL-C was maintained at a normal level, the risk of CVD was higher in those whose HDL-C changed to a low level, remained unchanged at a low level(HR, 1.24; 95 % CI, 1.01-1.40,P < 0.001), similarly, the risk of CVD was higher in those whose HDL-C changed from very high level to normal level(HR, 0.81; 95 % CI, 0.67-0.99,P = 0.039). Also compared with participants whose HDL-C was maintained at a normal level, the risk of CVD was lower in those whose HDL-C increased from low to normal and high(HR, 0.80; 95 % CI, 0.66-0.98,P = 0.029). CONCLUSIONS: Participants whose HDL-C changed to a low level and whose low HDL-C level was maintained had a higher risk of CVD, whereas participants whose HDL-C changed from low to high had a lower risk of CVD.

9.
Theranostics ; 14(15): 5809-5825, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-39346541

RESUMO

Introduction: Ionizing radiation has been widely used in industry, medicine, military and agriculture. Radiation-induced skin injury is a significant concern in the context of radiotherapy and accidental exposure to radiation. The molecular changes at the single-cell level and intercellular communications during radiation-induced skin injury are not well understood. Methods: This study aims to illustrate this information in a murine model and human skin samples from a radiation accident using single-cell RNA sequencing (scRNA-Seq). We further characterize the functional significance of key molecule, which may provide a potential therapeutic target. ScRNA-Seq was performed on skin samples from a nuclear accident patient and rats exposed to ionizing radiation. Bioinformatic tools were used to analyze the cellular heterogeneity and preferential mRNAs. Comparative analysis was performed to identify dysregulated pathways, regulators, and ligand-receptor interactions in fibroblasts. The function of key molecule was validated in skin cells and in three mouse models of radiation-induced skin injury. Results: 11 clusters in human skin and 13 clusters of cells in rat skin were depicted respectively. Exposure to ionizing radiation caused changes in the cellular population (upregulation of fibroblasts and endothelial cells, downregulation of keratinocytes). Fibroblasts and keratinocytes possessed the most interaction pairs with other cell lineages. Among the five DEGs common to human and rat skins, Nur77 was highly expressed in fibroblasts, which mediated radiosensitivity by cell apoptosis and modulated crosstalk between macrophages, keratinocytes and endothelial cells in radiation-induced skin injury. In animal models, Nur77 knock-out mice (Nur77 -/-) showed more severe injury after radiation exposure than wild-type counterparts in three models of radiation-induced skin injury with complex mechanisms. Conclusion: The study reveals a single-cell transcriptional framework during radiation-induced skin injury, which provides a useful resource to uncover key events in its progression. Nur77 is a novel target in radiation-induced skin injury, which provides a potential therapeutic strategy against this disease.


Assuntos
Queratinócitos , Membro 1 do Grupo A da Subfamília 4 de Receptores Nucleares , RNA-Seq , Análise de Célula Única , Pele , Animais , Membro 1 do Grupo A da Subfamília 4 de Receptores Nucleares/genética , Membro 1 do Grupo A da Subfamília 4 de Receptores Nucleares/metabolismo , Humanos , Camundongos , Ratos , Pele/efeitos da radiação , Pele/patologia , Pele/metabolismo , Pele/lesões , Queratinócitos/efeitos da radiação , Queratinócitos/metabolismo , Fibroblastos/efeitos da radiação , Fibroblastos/metabolismo , Masculino , Camundongos Knockout , Radiação Ionizante , Lesões por Radiação/genética , Lesões por Radiação/patologia , Análise da Expressão Gênica de Célula Única
10.
Artigo em Inglês | MEDLINE | ID: mdl-39210580

RESUMO

The study aimed to assess the impact of changes in blood pressure on cardiovascular events in the Chinese population. It enrolled 33 179 Chinese participants aged ≥35 years (57.1% women) without CVD at baseline. BP status was defined according to the 2017 ACC/AHA hypertension guidelines. The type of BP change was defined as change in BP status from baseline to the end of follow-up, included stable BP <130/80, <130/80 to ≥130/80, ≥130/80 to <130/80 mm Hg, persistent BP ≥130/80 mm Hg. The hazard ratio (HR) of incident CVD by change in BP category was estimated using Cox proportional hazards and Fine-Gray models. During median follow-up of 3.17 years, 2023 CVD events occurred. Compared with BP <120/80, 120-129/<80 mm Hg at baseline (HR = 1.66, 95% CI: 1.09-2.53), 130-139/80-89 mm Hg (HR = 1.35, 95% CI: 0.94-1.95), and ≥140/90 mm Hg (HR = 2.46, 95% CI: 1.78-3.40) were risk factors for CVD. Compared with the group with stable BP <130/80 mm Hg, the risk of CVD was 1.88 (95% CI: 1.40-2.53) in the group with persistent BP ≥130/80 mm Hg and 1.40 (95% CI: 1.01-1.94) in the group of BP decreased to <130/80 mm Hg. These results showed that BP 120-129/<80, 130-139/80-89, and ≥140/90 mm Hg were associated with a high risk of CVD. Over time, persistent BP ≥130/80 mm Hg increased the risk of CVD, but a return to <130/80 mm Hg from hypertension decreased the risk of CVD.

11.
ACS Biomater Sci Eng ; 10(9): 5723-5738, 2024 Sep 09.
Artigo em Inglês | MEDLINE | ID: mdl-39163588

RESUMO

The repair and regeneration of maxillofacial bone defects are major clinical challenges. Titanium (Ti)-magnesium (Mg) composites are a new generation of revolutionary internal fixation materials encompassing the mechanical strength and bioactive advantages of Ti and Mg alloys, respectively. This study was aimed to construct a Ti-Mg composite internal plate/screw fixation system to fix and repair bone defects. Further, the effects of different internal fixation systems on bone repair were analyzed through radiological and histological analyses. Notably, Ti6Al4V with rolled Mg foil was used as the experimental group, and a bone defect model of transverse complete amputation of the ulna in rabbits similar to the clinical condition was established. The internal fixation system with the highest osteogenic efficiency was selected based on in vivo results, and the direct and indirect bone repair abilities of the selected materials were evaluated in vitro. Notably, the thin Mg foil-Ti6Al4V internal fixation system exhibited the best fixation effect in the bone defect model and promoted the formation of new bone and early healing of bone defect areas. In vitro, the thin Mg foil-Ti6Al4V composite enhanced the activity of MC3T3-E1 cells; promoted the proliferation, adhesion, extension, and osteogenic differentiation of MC3T3-E1 cells; and regulated new bone formation. Further, it also promoted the polarization of RAW264.7 cells to M2 macrophages, induced the osteogenic immune microenvironment, and indirectly regulated the bone repair process. Therefore, a internal fixation system holds a promising potential for the internal fixation of maxillofacial bone defects. Our findings provide a theoretical and scientific basis for the design and clinical application of Ti-Mg internal fixation systems.


Assuntos
Ligas , Magnésio , Osteogênese , Titânio , Animais , Titânio/química , Magnésio/farmacologia , Coelhos , Camundongos , Ligas/química , Osteogênese/efeitos dos fármacos , Regeneração Óssea/efeitos dos fármacos , Proliferação de Células/efeitos dos fármacos , Fixação Interna de Fraturas/métodos , Diferenciação Celular/efeitos dos fármacos , Fixadores Internos
14.
Int J Radiat Biol ; 100(10): 1453-1461, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-39136543

RESUMO

PURPOSE: Head and neck squamous cell carcinoma (HNSCC) is globally prevalent with high recurrence, low survival rate, and poor quality of life for patients. Derived from PAC-1, SM-1 can activate procaspase-3 and induce apoptosis in cancer cells to exert anti-tumor effects. However, the inhibitory effect of SM-1 on HNSCC after combination with radiation are unclear. This study aims to investigate the radiosensitizing effect of SM-1 on HNSCC in vitro and in vivo. METHODS: MTT method was used to detect the effect of SM-1 on the viability of HNSCC cell lines (HONE1, HSC-2, and CAL27). The effects of SM-1 combined with radiation on the survival index of HONE1, HSC-2, and CAL27 cell lines were determined by colony formation assay. Flow cytometry was used to investigate the effects of SM-1 and radiation combination on cell apoptosis and cell cycle, and western blot experiments were performed to detect the expression of apoptosis and cell cycle-related proteins. Finally, a xenograft tumor model of CAL27 was established to evaluate the anti-tumor effect of SM-1 combined with radiation in vivo. RESULTS: In vitro, SM-1 effectively inhibited the activity of HNSCC cell lines HONE1, HSC-2, and CAL27 cells, and synergistically showed anti-proliferation activity during combined irradiation. Meanwhile, anti-tumor effect of SM-1 on HNSCC was higher than that of Debio1143, and the radiosensitivity of cells was greatly increased. Flow cytometry and western blot analysis showed that SM-1 induced G2/M phase arrest of head and neck squamous cell carcinoma cells via inhibiting the expression of CyclinB1 and CDC2. Moreover, SM-1 activated caspase-3 activity and up-regulated the cleaved form of PARP1 to induce cell apoptosis. In vivo, SM-1 combined irradiation showed a good anti-tumor effect. CONCLUSION: SM-1 enhances HNSCC cell radiation sensitivity in vitro and in vivo, supporting its potential as a radiosensitizer for clinical trials in combination with radiotherapy.


Assuntos
Apoptose , Neoplasias de Cabeça e Pescoço , Radiossensibilizantes , Carcinoma de Células Escamosas de Cabeça e Pescoço , Humanos , Linhagem Celular Tumoral , Apoptose/efeitos da radiação , Radiossensibilizantes/farmacologia , Animais , Carcinoma de Células Escamosas de Cabeça e Pescoço/radioterapia , Carcinoma de Células Escamosas de Cabeça e Pescoço/patologia , Neoplasias de Cabeça e Pescoço/radioterapia , Neoplasias de Cabeça e Pescoço/patologia , Camundongos , Camundongos Nus , Carcinoma de Células Escamosas/radioterapia , Carcinoma de Células Escamosas/patologia , Ensaios Antitumorais Modelo de Xenoenxerto
15.
Int J Biol Macromol ; 278(Pt 3): 134860, 2024 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-39163956

RESUMO

Exploring nutritional therapies that manipulate tryptophan metabolism to activate AhR signaling represents a promising approach for mitigating chronic colitis. Arabinoxylan is a bioactive constituent abundant in wheat bran. Here, we comprehensively investigated anti-colitis potentials of wheat bran arabinoxylan (WBAX), its synbiotic and postbiotic derived from WBAX and Limosilactobacillus reuteri WX-94 (i.e., a probiotic strain exhibiting tryptophan metabolic activity). WBAX fueled L. reuteri and promoted microbial conversion of tryptophan to AhR ligands during in vitro fermentation in the culture medium and in the fecal microbiota from type 2 diabetes. The WBAX postbiotic outperformed WBAX and its synbiotic in augmenting efficacy of tryptophan in restoring DSS-disturbed serum immune markers, colonic tight junction proteins and gene profiles involved in amino acid metabolism and FoxO signaling. The WBAX postbiotic remodeled gut microbiota and superiorly enhanced AhR ligands (i.e., indole metabolites and bile acids), alongside with elevation in colonic AhR and IL-22. Associations between genera and metabolites modified by the postbiotic and colitis in human were verified and strong binding capacities between metabolites and colitis-related targets were demonstrated by molecular docking. Our study advances the novel perspective of WBAX in manipulating tryptophan metabolism and anti-colitis potentials of WBAX postbiotic via promoting gut microbiota-dependent AhR signaling.


Assuntos
Colite , Fibras na Dieta , Microbioma Gastrointestinal , Limosilactobacillus reuteri , Simbióticos , Xilanos , Xilanos/farmacologia , Xilanos/química , Xilanos/metabolismo , Limosilactobacillus reuteri/metabolismo , Colite/metabolismo , Colite/microbiologia , Microbioma Gastrointestinal/efeitos dos fármacos , Fibras na Dieta/metabolismo , Humanos , Animais , Camundongos , Receptores de Hidrocarboneto Arílico/metabolismo , Triptofano/metabolismo , Simulação de Acoplamento Molecular , Fermentação , Masculino , Diabetes Mellitus Tipo 2/metabolismo , Diabetes Mellitus Tipo 2/microbiologia , Multiômica
16.
New Phytol ; 2024 Aug 05.
Artigo em Inglês | MEDLINE | ID: mdl-39103987

RESUMO

Plant phenology, the timing of recurrent biological events, shows key and complex response to climate warming, with consequences for ecosystem functions and services. A key challenge for predicting plant phenology under future climates is to determine whether the phenological changes will persist with more intensive and long-term warming. Here, we conducted a meta-analysis of 103 experimental warming studies around the globe to investigate the responses of four phenophases - leaf-out, first flowering, last flowering, and leaf coloring. We showed that warming advanced leaf-out and flowering but delayed leaf coloring across herbaceous and woody plants. As the magnitude of warming increased, the response of most plant phenophases gradually leveled off for herbaceous plants, while phenology responded in proportion to warming in woody plants. We also found that the experimental effects of warming on plant phenology diminished over time across all phenophases. Specifically, the rate of changes in first flowering for herbaceous species, as well as leaf-out and leaf coloring for woody species, decreased as the experimental duration extended. Together, these results suggest that the real-world impact of global warming on plant phenology will diminish over time as temperatures continue to increase.

17.
NPJ Biofilms Microbiomes ; 10(1): 68, 2024 Aug 08.
Artigo em Inglês | MEDLINE | ID: mdl-39117662

RESUMO

Shrews being insectivores, serve as natural reservoirs for a wide array of zoonotic viruses, including the recently discovered Langya henipavirus (LayV) in China in 2018. It is crucial to understand the shrew-associated virome, viral diversity, and new viruses. In the current study, we conducted high-throughput sequencing on lung samples obtained from 398 shrews captured along the eastern coast of China, and characterized the high-depth virome of 6 common shrew species (Anourosorex squamipes, Crocidura lasiura, Crocidura shantungensis, Crocidura tanakae, Sorex caecutiens, and Suncus murinus). Our analysis revealed numerous shrew-associated viruses comprising 54 known viruses and 72 new viruses that significantly enhance our understanding of mammalian viruses. Notably, 34 identified viruses possess spillover-risk potential and six were human pathogenic viruses: LayV, influenza A virus (H5N6), rotavirus A, rabies virus, avian paramyxovirus 1, and rat hepatitis E virus. Moreover, ten previously unreported viruses in China were discovered, six among them have spillover-risk potential. Additionally, all 54 known viruses and 12 new viruses had the ability to cross species boundaries. Our data underscore the diversity of shrew-associated viruses and provide a foundation for further studies into tracing and predicting emerging infectious diseases originated from shrews.


Assuntos
Sequenciamento de Nucleotídeos em Larga Escala , Pulmão , Musaranhos , Viroma , Animais , Musaranhos/virologia , China , Pulmão/virologia , Viroma/genética , Filogenia , Vírus de RNA/genética , Vírus de RNA/classificação , Vírus de RNA/isolamento & purificação , RNA Viral/genética , Vírus da Influenza A/genética , Vírus da Influenza A/classificação , Vírus da Influenza A/isolamento & purificação , Vírus da Raiva/genética , Vírus da Raiva/classificação , Vírus da Raiva/isolamento & purificação , Reservatórios de Doenças/virologia
18.
Regen Biomater ; 11: rbae090, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-39193556

RESUMO

Human dental pulp stem cells (hDPSCs) have demonstrated greater proliferation and osteogenic differentiation potential in certain studies compared to other types of mesenchymal stem cells, making them a promising option for treating craniomaxillofacial bone defects. However, due to low extracting concentration and long amplifying cycles, their access is limited and utilization rates are low. To solve these issues, the principle of bone-forming peptide-1 (BFP1) in situ chemotaxis was utilized for the osteogenic differentiation of hDPSCs to achieve simultaneous and synergistic osteogenesis at multiple sites. BFP1-functionalized gelatin methacryloyl hydrogel provided a 3D culture microenvironment for stem cells. The experimental results showed that the 3D composite hydrogel scaffold constructed in this study increased the cell spread area by four times compared with the conventional GelMA scaffold. Furthermore, the problems of high stem cell dosage and low rate of utilization were alleviated by orchestrating the programmed proliferation and osteogenic differentiation of hDPSCs. In vivo, high-quality repair of critical bone defects was achieved using hDPSCs extracted from a single tooth, and multiple 'bone island'-like structures were successfully observed that rapidly induced robust bone regeneration. In conclusion, this study suggests that this kind of convenient, low-cost, island-like osteogenesis strategy involving a low dose of hDPSCs has great potential for repairing craniomaxillofacial critical-sized bone defects.

19.
Sci Adv ; 10(27): eadn2031, 2024 Jul 05.
Artigo em Inglês | MEDLINE | ID: mdl-38968351

RESUMO

Three-dimensional (3D) perception is vital to drive mobile robotics' progress toward intelligence. However, state-of-the-art 3D perception solutions require complicated postprocessing or point-by-point scanning, suffering computational burden, latency of tens of milliseconds, and additional power consumption. Here, we propose a parallel all-optical computational chipset 3D perception architecture (Aop3D) with nanowatt power and light speed. The 3D perception is executed during the light propagation over the passive chipset, and the captured light intensity distribution provides a direct reflection of the depth map, eliminating the need for extensive postprocessing. The prototype system of Aop3D is tested in various scenarios and deployed to a mobile robot, demonstrating unprecedented performance in distance detection and obstacle avoidance. Moreover, Aop3D works at a frame rate of 600 hertz and a power consumption of 33.3 nanowatts per meta-pixel experimentally. Our work is promising toward next-generation direct 3D perception techniques with light speed and high energy efficiency.

20.
Biosensors (Basel) ; 14(7)2024 Jul 08.
Artigo em Inglês | MEDLINE | ID: mdl-39056609

RESUMO

Bioanalysis based on optical imaging has gained significant progress in the last few decades. Luminescence probes are capable of detecting, monitoring, and tracing particular biomolecules in complex biological systems to figure out the roles of these molecules in organisms. Considering the rapid development of luminescence probes for bio-applications and their promising future, we have attempted to explore the working principles and recent advances in bio-applications of luminescence probes, in the hope of helping readers gain a detailed understanding of luminescence probes developed in recent years. In this review, we first focus on the current widely used luminescence probes, including fluorescence probes, bioluminescence probes, chemiluminescence probes, afterglow probes, photoacoustic probes, and Cerenkov luminescence probes. The working principles for each type of luminescence probe are concisely described and the bio-application of the luminescence probes is summarized by category, including metal ions detection, secretion detection, imaging, and therapy.


Assuntos
Técnicas Biossensoriais , Luminescência , Corantes Fluorescentes/química , Medições Luminescentes , Humanos , Imagem Óptica/métodos
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