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1.
Public Health Nurs ; 2024 Sep 02.
Artigo em Inglês | MEDLINE | ID: mdl-39221663

RESUMO

BACKGROUND: Minority populations are utilizing mobile health applications more frequently to access health information. One group that may benefit from using mHealth technology is underserved women, specifically those on community supervision. OBJECTIVE: Discuss methodological approaches for navigating digital health strategies to address underserved women's health disparities. DESCRIPTION OF THE INNOVATIVE METHOD: Using an intersectional lens, we identified strategies for conducting research using digital health technology and artificial intelligence amongst the underserved, particularly those with community supervision. DESCRIPTION OF ITS EFFECTIVENESS: We explore (1) methodological approaches that combine traditional research methods with precision medicine, digital phenotyping, and ecological momentary assessment; (2) implications for artificial intelligence; and (3) ethical considerations with data collection, storage, and engagement. DISCUSSION: Researchers must address gendered differences related to health, social, and economic disparities concurrently with an unwavering focus on the protection of human subjects when addressing the unique needs of underserved women while utilizing digital health methodologies. PUBLIC CONTRIBUTION: Women on community supervision in South Central Texas helped inform the design of JUN, the mHealth app we reported in the case exemplar. JUN is named after the Junonia shell, a native shell to South Texas, which means strength, power, and self-sufficiency, like the participants in our preliminary studies.

2.
J Environ Manage ; 370: 122422, 2024 Sep 06.
Artigo em Inglês | MEDLINE | ID: mdl-39243653

RESUMO

Microplastics (MPs) can provide a unique niche for microbiota in waters, thus regulating the nutrients and carbon cycling. Following the vertical transport of MPs in waters, the compositions of attached biofilm may be dramatically changed. However, few studies have focused on the related ecological function response, including the carbon metabolism. In this study, we investigated the microbial carbon metabolism patterns of attached biofilm on different MPs in the vertical profile of urban rivers. The results showed that the carbon metabolism capacity of biofilm on the degradable polylactic acid (PLA) MPs was higher than that in the non-degradable polyethylene terephthalate (PET) MPs. In the vertical profile, the carbon metabolism rates of biofilm on two MPs both decreased with water depth, being 0.74 and 0.91 folds in bottom waters of that in surface waters. Specifically, the utilization of polymers, carbohydrate, and amine of PLA biofilm was significantly inhibited in the bottom waters, which were not altered on the PET. Compared with surface waters, the microbial metabolism function index of PLA biofilm was inhibited in deep waters, but elevated in the PET biofilm. In addition, the water quality parameters (e.g., nutrients) in the vertical profile largely shaped carbon metabolism patterns. These findings highlight the distinct carbon metabolism patterns in aquatic environments in the vertical profile, providing new insights into the effects of MPs on global carbon cycle.

3.
Cancer Res ; 2024 Sep 06.
Artigo em Inglês | MEDLINE | ID: mdl-39240694

RESUMO

Vδ1T cells, a rare subset of γδT cells, hold promise for treating solid tumors. Unlike conventional T cells, they recognize tumor antigens independently of the MHC antigen-presentation pathway, making them a potential "off-the-shelf" cell therapy product. However, isolation and activation of Vδ1T cells is challenging, which has limited their clinical investigation. Here, we developed a large-scale clinical-grade manufacturing process for Vδ1T cells and validated the therapeutic potential of B7-H3-CAR-modified Vδ1T cells in treating solid tumors. Co-expression of interleukin-2 with the B7-H3-CAR led to durable anti-tumor activity of Vδ1T cells in vitro and in vivo. In multiple subcutaneous and orthotopic mouse xenograft tumor models, a single intravenous administration of the CAR-Vδ1T cells resulted in complete tumor regression. These modified cells demonstrated significant in vivo expansion and robust homing ability to tumors, akin to natural tissue-resident immune cells. Additionally, the B7-H3-CAR-Vδ1T cells exhibited a favorable safety profile. In conclusion, B7-H3-CAR-modified Vδ1T cells represent a promising strategy for treating solid tumors.

4.
Am J Transl Res ; 16(8): 3437-3448, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-39262697

RESUMO

This comprehensive meta-analysis investigated the effects of Rapid Maxillary Expansion (RME) on external root resorption, which is a prevalent orthodontic treatment intended to correct transverse maxillary deficiency and constricted dental arches. By conducting a systematic literature search across prominent electronic databases, including the Cochrane Library, EMBASE, LILACS, MEDLINE, PubMed, and Web of Science, the study compiled evidence until April 2023. A spectrum of search terms was utilized to capture diverse aspects of root resorption, RME, palatal expansion methods, and tooth erosion. Registered with INPLASY (202430057), the meta-analysis meticulously screened 11 studies that fulfilled stringent inclusion criteria. The quality of these studies was assessed using the Cochrane Bias Risk Assessment Tool for Randomized Controlled Trials (RCTs) and the Methodological Index for Non-Randomized Studies (MINORS) for other research designs. The collective analyses disclosed a substantial impact of RME on external root resorption, indicating that the treatment may induce pronounced root erosion. Subgroup analyses further elucidated distinct patterns in root resorption among various types of RME, underscoring the variability in treatment outcomes and the need for personalized care. Consequently, the meta-analysis unequivocally confirmed that external root resorption may be a concerning consequence of RME treatment, necessitating thorough monitoring and management strategies to mitigate potential adverse effects on dental health.

5.
Am J Transl Res ; 16(8): 3462-3471, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-39262731

RESUMO

This study examines the potential association between Oral Lichen Planus (OLP) and Candida albicans infection, exploring its potential impact on the development of OLP. A meta-analysis of individual case-control studies was performed, estimating odds ratios (ORs) and their corresponding 95% confidence intervals (CIs). A quality assessment of the literature was conducted using the Newcastle-Ottawa Scale (NOS). Due to considerable heterogeneity in the selected studies, subgroup analyses were performed based on geographical location and recruitment methods. No significant publication bias was detected. A sensitivity analysis validated the robustness of the findings when applying a random-effects model. The meta-analysis included ten studies, comprising 1,124 OLP patients and 1,063 healthy controls. Results indicated a significantly higher detection rate of Candida albicans in OLP patients compared to healthy controls (OR = 1.74, P = 0.003, 95% CI: 1.20, 2.52). Additionally, an increased risk of Candida albicans infection was observed in erosive OLP (E-OLP) patients compared to healthy controls (OR = 3.97, 95% CI: 2.31, 6.84, P < 0.00001). These findings suggest a complex interplay between OLP and Candida albicans, highlighting the need for further research to elucidate the varying susceptibilities among different clinical types of OLP. This study provides novel insights for future research directions and clinical treatment strategies in this field.

6.
Am J Transl Res ; 16(8): 4216-4224, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-39262738

RESUMO

OBJECTIVE: To analyze the efficacy of phloroglucinol versus ritodrine hydrochloride in preventing miscarriage and adverse reactions (ARs). METHODS: A retrospective analysis was conducted on 211 patients with threatened abortion or premature birth who were admitted to the Second Affiliated Hospital of Shaanxi University of Traditional Chinese Medicine between July 2019 and July 2021. The control group (n=57) received ritodrine hydrochloride, while the observation group (n=154) was treated with phloroglucinol. We compared the overall therapeutic efficacy, time to symptom resolution, cessation of uterine contractions, success rate of miscarriage prevention, and full-term pregnancy rate between the two groups. Estrogen levels, including serum progesterone (P), estradiol (E2), and human chorionic gonadotropin (hCG), were measured and compared before and after treatment using ELISA. Additionally, neonatal outcomes, such as birth weight, Apgar scores, and umbilical arterial blood gas parameters [pH value, partial pressure of oxygen (PaO2), and partial pressure of carbon dioxide (PaCO2)], were evaluated and compared between the groups. Finally, the incidence of ARs during treatment was assessed and compared. RESULTS: Compared to the control group, the observation group had higher effective rate of treatment, success rate of miscarriage prevention, and a full-term pregnancy rate (all P<0.05). The times to symptom resolution and cessation of uterine contractions were markedly shorter in the observation group than those in the control group (both P<0.05). After treatment, levels of serum P, E2, and hCG in the observation group were significantly higher than those of the control group (all P<0.05). Additionally, the body weight, Apgar scores, pH value, and PaO2 of the neonates in the observation group were higher, while PaCO2 and the incidence of ARs were lower compared to the control group (all P<0.05). CONCLUSION: For threatened abortion or threatened premature labor, phloroglucinol is more effective than ritodrine hydrochloride for clinical intervention and treatment.

7.
Front Plant Sci ; 15: 1382768, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-39263418

RESUMO

Introduction: Citrus fruit is rich in important functional constituents such as flavonoids, phenolic acids terpenes and other functional substances that play an important role for treating clinical diseases or controlling major agricultural diseases and pests. Plant secondary metabolites have become one of the most important resources of novel lead compounds, especially young citrus fruits contain multiple functional substances. 'Orah', a type of citrus reticulata, is known for its fine appearance, productivity, delicious sweetness, late-maturing characteristics, and is widely cultivated in China. Fruit thinning and rootstock selection are commonly used agronomic measures in its production to ensure its quality and tree vigor. However, few studies have demonstrated the effects of these agronomic measures on the functional substances of 'Orah'. Methods: In this study, we used HPLC coupled with UV to detect the dynamic changes of fruit quality, 13 main flavonoids, 7 phenolic acids, 2 terpenes, synephrine and antioxidant capacity in both peel and pulp of citrus fruits grafted on four rootstocks (Red orange Citrus reticulata Blanco cv. red tangerine, Ziyang xiangcheng Citrus junos Sieb. ex Tanaka, Trifoliate orange Poncirus trifoliata L. Raf, and Carrizo citrange Citrus sinensis Osb.×P.trifoliate Raf) at six different developmental stages (from 90 DAF to 240 DAF). Results: The results indicated that rootstock can significantly affect the contents of functional constituents and antioxidant capacity in 'Orah'. Additionally, it was found that pruning at either 90 DAF (days after flowering) or 150 DAF produced the most favorable outcomes for extracting functional substances. We also identified rootstock 'Trifoliate orange' has the highest total soluble solids (TSS) and 'Ziyang xiangcheng' to be the optimal in terms of comprehensive sensory of fruit quality, while 'Red orange' and 'Ziyang xiangcheng' are optimal in terms of functional substance quality, and 'Red orange' excels in antioxidant capacity. Discussion: Overall, the findings demonstrate the important role of rootstocks and developmental stage in shaping fruit sensory quality and functional substance synthesis, providing valuable insights for guiding rootstock selection, determining thinning time, and utilizing pruned fruits in a more informed manner.

8.
Front Public Health ; 12: 1423286, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-39220462

RESUMO

Background: Limited epidemiological evidence suggests that exposure to trace elements adversely impacts the development of gastric precancerous lesions (GPL) and gastric cancer (GC). This study aimed to estimate the association of individual urinary exposure to multiple elements with GPL and GC. Methods: A case-control investigation was conducted in Anhui Province from March 2021 to December 2022. A total of 528 subjects (randomly sampled from 1,020 patients with GPL, 200 patients with GC, and 762 normal controls) were included in our study. Urinary levels of iron (Fe), copper (Cu), zinc (Zn), nickel (Ni), strontium (Sr), and Cesium (Cs) were measured using inductively coupled plasma mass spectrometry (ICP-MS). Four different statistical approaches were employed to explore the risk of GPL and GC with mixed exposure, including multivariate logistic regression, weighted quantile regression (WQS), quantile g-computation (Qgcomp), and the Bayesian kernel machine regression (BKMR) model. Results: The WQS model indicated that urinary exposure to a mixture of elements is positively correlated with both GPL and GC, with ORs for the mixture exposure of 1.34 (95% CI: 1.34-1.61) for GPL and 1.38 (95% CI: 1.27-1.50) for GC. The Qgcomp and BKMR models also demonstrated a statistically significant positive correlation between the mixture and both GPL and GC. Conclusion: Considering the limitations of case-control studies, future prospective studies are warranted to elucidate the combined effects and mechanisms of trace elements exposure on human health.


Assuntos
Lesões Pré-Cancerosas , Neoplasias Gástricas , Oligoelementos , Humanos , Neoplasias Gástricas/urina , Neoplasias Gástricas/epidemiologia , China/epidemiologia , Masculino , Oligoelementos/urina , Feminino , Estudos de Casos e Controles , Pessoa de Meia-Idade , Lesões Pré-Cancerosas/urina , Idoso , Adulto
9.
Front Immunol ; 15: 1438726, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-39221238

RESUMO

Mechanical forces affect periodontal health through multiple mechanisms. Normally, mechanical forces can boost soft and hard tissue metabolism. However, excessive forces may damage the periodontium or result in irreversible inflammation, whereas absence of occlusion forces also leads to tissue atrophy and bone resorption. We systemically searched the PubMed and Web of Science databases and found certain mechanisms of mechanical forces on immune defence, extracellular matrix (ECM) metabolism, specific proteins, bone metabolism, characteristic periodontal ligament stem cells (PDLSCs) and non-coding RNAs (ncRNAs) as these factors contribute to periodontal homeostasis. The immune defence functions change under forces; genes, signalling pathways and proteinases are altered under forces to regulate ECM metabolism; several specific proteins are separately discussed due to their important functions in mechanotransduction and tissue metabolism. Functions of osteocytes, osteoblasts, and osteoclasts are activated to maintain bone homeostasis. Additionally, ncRNAs have the potential to influence gene expression and thereby, modify tissue metabolism. This review summarizes all these mechanisms of mechanical forces on periodontal homeostasis. Identifying the underlying causes, this review provides a new perspective of the mechanisms of force on periodontal health and guides for some new research directions of periodontal homeostasis.


Assuntos
Homeostase , Mecanotransdução Celular , Ligamento Periodontal , Periodonto , Humanos , Periodonto/metabolismo , Animais , Ligamento Periodontal/metabolismo , Matriz Extracelular/metabolismo , Estresse Mecânico , Doenças Periodontais/metabolismo , Doenças Periodontais/imunologia , RNA não Traduzido/genética , RNA não Traduzido/metabolismo , Células-Tronco/metabolismo
10.
Front Immunol ; 15: 1441863, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-39229266

RESUMO

This perspective article delves into a novel integration of Yin-Yang theory-an ancient Chinese philosophical cornerstone-with the sophisticated realm of immunology. Given the intricate concepts inherent in immunology, many students find it challenging to comprehend the delicate mechanisms governing immune equilibrium and regulation. Given the deep-rooted understanding of Yin-Yang theory among Chinese students, we advocate for an educational strategy that contextualizes the concept of immune equilibrium within the framework of Yin-Yang, thereby offering a more intuitive and engaging learning experience. This method not only capitalizes on the cultural significance of Yin-Yang, but also corresponds to its principles of equilibrium and harmony, thus mirroring the homeostatic essence of immune responses. This article critically assesses this technique's capacity to bolster immune comprehension amongst Chinese students, while also considering its limitations. Despite these limitations, the fusion of these seemingly divergent fields holds substantial promise for augmenting immunology education, promoting critical thinking, and advancing cross-cultural academic discourse. The amalgamation of age-old philosophical insights with modern scientific exploration prompts a reassessment of educational methodologies within immunology, underscoring a novel pedagogical approach that bridges traditional wisdom with contemporary scientific education.


Assuntos
Alergia e Imunologia , Yin-Yang , Alergia e Imunologia/educação , Alergia e Imunologia/história , Humanos , Ensino , China
11.
Molecules ; 29(17)2024 Sep 09.
Artigo em Inglês | MEDLINE | ID: mdl-39275128

RESUMO

PURPOSE: Chronic wounds that are difficult to heal pose a major challenge for clinicians and researchers. Currently, common treatment methods focus on isolating the wound from the outside world, relying on the tissue at the wound site to grow and heal unaided. Umbilical cord mesenchymal stem cell (MSC) exosomes can promote wound healing by enhancing new blood vessel growth at the wound site. Valproic acid (VPA) reduces the inflammatory response and acts on macrophages to accelerate wound closure. In this study, VPA was loaded into umbilical cord MSC exosomes to form a drug carrier exosome (VPA-EXO) with the aim of investigating the effect of VPA-EXO on wound healing. METHODS: This study first isolated and obtained umbilical cord MSC exosomes, then added VPA to the exosomes and explored the ability of VPA-EXO to promote the proliferation and migration of human skin fibroblasts (HSFs) and human umbilical vein endothelial cells (HUVECs), as well as the ability to promote the angiogenesis of HUVECs, by using scratch, Transwell, and angiogenesis assays. An in vitro cell model was established and treated with VPA-EXO, and the expression levels of inflammation and pro-angiogenesis-related proteins and genes were examined using Western blot and qRT-PCR. The therapeutic effect of VPA-EXO on promoting wound healing in a whole skin wound model was investigated using image analysis of the wound site, H&E staining, and immunohistochemical staining experiments in a mouse wound model. RESULTS: The in vitro model showed that VPA-EXO effectively promoted the proliferation and migration of human skin fibroblast cells and human umbilical vein endothelial cells; significantly inhibited the expression of MMP-9, IL-1ß, IL-8, TNF-α, and PG-E2; and promoted the expression of vascular endothelial growth factors. In the mouse wound model, VPA-EXO reduced inflammation at the wound site, accelerated wound healing, and significantly increased the collagen content of tissue at the wound site. CONCLUSIONS: As a complex with dual efficacy in simultaneously promoting tissue regeneration and inhibiting inflammation, VPA-EXO has potential applications in tissue wound healing and vascular regeneration. In future studies, we will further investigate the mechanism of action and application scenarios of drug-loaded exosome complexes in different types of wound healing and vascular regeneration.


Assuntos
Exossomos , Células Endoteliais da Veia Umbilical Humana , Inflamação , Células-Tronco Mesenquimais , Neovascularização Fisiológica , Ácido Valproico , Cicatrização , Ácido Valproico/farmacologia , Cicatrização/efeitos dos fármacos , Exossomos/metabolismo , Humanos , Animais , Inflamação/tratamento farmacológico , Inflamação/metabolismo , Camundongos , Células-Tronco Mesenquimais/metabolismo , Células-Tronco Mesenquimais/efeitos dos fármacos , Células-Tronco Mesenquimais/citologia , Neovascularização Fisiológica/efeitos dos fármacos , Proliferação de Células/efeitos dos fármacos , Movimento Celular/efeitos dos fármacos , Fibroblastos/efeitos dos fármacos , Fibroblastos/metabolismo , Angiogênese
12.
Nanomaterials (Basel) ; 14(17)2024 Sep 09.
Artigo em Inglês | MEDLINE | ID: mdl-39269128

RESUMO

We demonstrate high-extraction-rate Ta2O5-core/SiO2-clad photonic waveguides on silicon fabricated by the photolithography-assisted chemo-mechanical etching technique. Low-confinement waveguides of larger than 70% coupling efficiency with optical fibers and medium propagation loss around 1 dB/cm are investigated in the experiment. Monolithic microring resonators based on Ta2O5 waveguides have shown the quality factors to be above 105 near 1550 nm. The demonstrated Ta2O5 waveguides and their fabrication method hold great promise in various cost-effective applications, such as optical interconnecting and switching.

13.
Stem Cell Res Ther ; 15(1): 292, 2024 Sep 11.
Artigo em Inglês | MEDLINE | ID: mdl-39256792

RESUMO

BACKGROUND: Hepatic progenitor cells serve not only as the origin of combined hepatocellular cholangiocarcinoma (cHCC-CCA) but are also responsible for malignancy recurrence after surgical resection. Nucleophosmin 1 (NPM1) has been implicated in cancer metastasis and poor prognosis. This study aimed to determine the expression of NPM1 by hepatic progenitor cells in cHCC-CCA and the effects of targeting NPM1 on hepatic progenitor cells and BEL-7402 cells with characteristics of both progenitor cells and cHCC-CCA. METHODS: First, NPM1 was detected by RT‒PCR, western blotting, and double-immunofluorescence staining in cHCC-CCA tissues. NPM1 expression was subsequently analysed in rat hepatic progenitor cells cultured in vitro and in interleukin 6 (IL6)-treated cells. The effects and mechanism of NPM1 on hepatic progenitor cells were determined by knocking down NPM1 and performing RNA sequencing analysis. Finally, NSC348884, a small-molecule inhibitor that disrupts NPM1 dimer formation, was used to confirm the function of NPM1 in BEL-7402 cells. RESULTS: Both human hepatic progenitor cells in cHCC-CCA tissues and rat in vitro cultured hepatic progenitor cells highly expressed NPM1. IL6, a cytokine involved in the malignant transformation of hepatic progenitor cells, dose-dependently increased NPM1 and PCNA expression. Knocking down NPM1 reduced IL6R transcription (P < 0.0001) and inhibited the proliferation (P = 0.0065) of hepatic progenitor cells by suppressing the mTOR signalling pathway and activating the apoptosis pathway. Furthermore, knocking down NPM1 in hepatic progenitor cells resulted in more apoptotic cells (7.33 ± 0.09% vs. 3.76 ± 0.13%, P < 0.0001) but fewer apoptotic cells in the presence of NSC348884 (47.57 ± 0.49% vs. 63.40 ± 0.05%, P = 0.0008) than in the control cells, suggesting that low-NPM1-expressing cells are more resistant to NSC348884. In addition, NSC348884 induced the apoptosis of BEL-7402 cells with an IC50 of 2.77 µmol/L via the downregulation of the IL-6R and mTOR signalling pathways and inhibited the growth of BEL-7402 cells in a subcutaneous xenograft tumour model (P = 0.0457). CONCLUSIONS: Targeting NPM1 inhibits proliferation and induces apoptosis in hepatic progenitor cells and BEL-7402 cells, thus serving as a potential therapy for cHCC-CCA.


Assuntos
Apoptose , Proliferação de Células , Proteínas Nucleares , Nucleofosmina , Transdução de Sinais , Células-Tronco , Serina-Treonina Quinases TOR , Humanos , Apoptose/efeitos dos fármacos , Serina-Treonina Quinases TOR/metabolismo , Serina-Treonina Quinases TOR/genética , Proliferação de Células/efeitos dos fármacos , Animais , Transdução de Sinais/efeitos dos fármacos , Ratos , Proteínas Nucleares/metabolismo , Proteínas Nucleares/genética , Células-Tronco/metabolismo , Células-Tronco/citologia , Masculino , Neoplasias Hepáticas/metabolismo , Neoplasias Hepáticas/patologia , Neoplasias Hepáticas/genética , Linhagem Celular Tumoral , Camundongos
14.
Sci Rep ; 14(1): 20980, 2024 09 09.
Artigo em Inglês | MEDLINE | ID: mdl-39251691

RESUMO

This study aims to evaluate the neutrophil-to-lymphocyte ratio (NLR) as a predictive biomarker for cardiovascular mortality among cancer patients, utilizing data from the National Health and Nutrition Examination Survey (NHANES). From the NHANES dataset (2007-2018), we analyzed 4974 cancer survivors, investigating the prognostic significance of NLR for all-cause, cardiovascular, and cancer-specific mortality. Survival outcomes were analyzed using Cox regression and Kaplan-Meier methods. Optimal NLR cutoffs were identified as 2.61 for differentiating the higher NLR group from lower NLR group. Elevated NLR levels significantly correlated with increased all-cause mortality (HR 1.11, 95% CI 1.07-1.14, P < 0.001) and cardiovascular mortality (HR 1.14, 95% CI 1.08-1.21, P < 0.001) in adjusted models. Subgroup analyses revealed that age, sex, smoking status, and hypertension significantly influence NLR's association with cardiovascular mortality. Specific cancers including breast, prostate, non-melanoma skin, colon and melanoma experience increased all-cause and cardiovascular mortality in the higher NLR group compared to lower NLR group. Elevated NLR is a significant predictor of increased mortality in cancer patients, particularly for cardiovascular outcomes. These findings support that NLR acts as a pivotal prognostic tool with significant implications for clinical practice in the realm of cardio-oncology.


Assuntos
Sobreviventes de Câncer , Doenças Cardiovasculares , Linfócitos , Neoplasias , Neutrófilos , Humanos , Masculino , Feminino , Pessoa de Meia-Idade , Doenças Cardiovasculares/mortalidade , Doenças Cardiovasculares/sangue , Sobreviventes de Câncer/estatística & dados numéricos , Idoso , Prognóstico , Neoplasias/mortalidade , Neoplasias/sangue , Neoplasias/complicações , Adulto , Contagem de Linfócitos , Inquéritos Nutricionais , Estimativa de Kaplan-Meier , Contagem de Leucócitos
15.
Front Oncol ; 14: 1434542, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-39252951

RESUMO

Castleman disease (CD), also known as giant lymph node hyperplasia or angiofollicular lymph node hyperplasia, is a rare and indeterminate group of chronic lymphoproliferative disorders. CD is highly heterogeneous, classified into unicentric Castleman disease (UCD) and multicentric Castleman disease (MCD) based on lesion distribution, and further categorized into three pathological types: hyaline vascular type (HV), plasma cell type (PC), and mixed type (Mix). This paper describes a rare case of solitary mediastinal Castleman disease with transparent vessels in the anterior sacrum, presenting as the HV type. Surgical excision of the mass was performed following coccygectomy for treatment. The patient recovered well postoperatively. During a 6-month follow-up period, there were no signs of recurrence, and the patient's quality of life significantly improved.

16.
Immun Inflamm Dis ; 12(9): e1331, 2024 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-39254643

RESUMO

AIM: We aimed to explore the impact of DNA methylation alterations on the DNA damage response (DDR) in melanoma prognosis and immunity. MATERIAL & METHODS: Different melanoma cohorts with molecular and clinical data were included. RESULTS: Hierarchical clustering utilizing different combinations of DDR-relevant CpGs yielded distinct melanoma subtypes, which were characteristic of different prognoses, transcriptional function profiles of DDR, and immunity and immunotherapy responses but were associated with similar tumor mutation burdens. We then constructed and validated a clinically applicable 4-CpG risk-score signature for predicting survival and immunotherapy response. CONCLUSION: Our study describes the close interrelationship among DNA methylation, DDR machinery, local tumor immune status, melanoma prognosis, and immunotherapy response.


Assuntos
Dano ao DNA , Metilação de DNA , Melanoma , Melanoma/genética , Melanoma/imunologia , Melanoma/mortalidade , Humanos , Prognóstico , Imunoterapia/métodos , Ilhas de CpG , Neoplasias Cutâneas/imunologia , Neoplasias Cutâneas/genética , Neoplasias Cutâneas/mortalidade , Neoplasias Cutâneas/patologia , Regulação Neoplásica da Expressão Gênica/imunologia , Mutação
17.
Microb Cell Fact ; 23(1): 251, 2024 Sep 14.
Artigo em Inglês | MEDLINE | ID: mdl-39272184

RESUMO

BACKGROUND: Seven-carbon sugars, which rarely exist in nature, are the key constitutional unit of septacidin and hygromycin B in bacteria. These sugars exhibit a potential therapeutic effect for hypoglycaemia and cancer and serve as building blocks for the synthesis of C-glycosides and novel antibiotics. However, chemical and enzymatic approaches for the synthesis of seven-carbon sugars have faced challenges, such as complex reaction steps, low overall yields and high-cost feedstock, limiting their industrial-scale production. RESULTS: In this work, we propose a strain engineering approach for synthesising sedoheptulose using glucose as sole feedstock. The gene pfkA encoding 6-phosphofructokinase in Corynebacterium glutamicum was inactivated to direct the carbon flux towards the pentose phosphate pathway in the cellular metabolic network. This genetic modification successfully enabled the synthesis of sedoheptulose from glucose. Additionally, we identified key enzymes responsible for product formation through transcriptome analysis, and their corresponding genes were overexpressed, resulting in a further 20% increase in sedoheptulose production. CONCLUSION: We achieved a sedoheptulose concentration of 24 g/L with a yield of 0.4 g/g glucose in a 1 L fermenter, marking the highest value up to date. The produced sedoheptulose could further function as feedstock for synthesising structural seven-carbon sugars through coupling with enzymatic isomerisation, epimerisation and reduction reactions.


Assuntos
Corynebacterium glutamicum , Glucose , Heptoses , Engenharia Metabólica , Corynebacterium glutamicum/metabolismo , Corynebacterium glutamicum/genética , Corynebacterium glutamicum/enzimologia , Engenharia Metabólica/métodos , Heptoses/biossíntese , Heptoses/metabolismo , Glucose/metabolismo , Via de Pentose Fosfato , Fermentação
18.
J Clin Nurs ; 2024 Sep 14.
Artigo em Inglês | MEDLINE | ID: mdl-39275900

RESUMO

AIM: Our study aims to assess the effectiveness of horticultural therapy in improving outcomes in older patients with dementia. DESIGN: A systematic review and meta-analysis. METHODS: The included studies comprised randomised controlled trials (RCTs) that aimed to assess the effectiveness of horticultural therapy on cognitive function in older patients with dementia. The study design and data extraction were independently conducted by two investigators, who also evaluated the risk of bias using RoB 2.0. The meta-analysis was carried out using Stata 15.1 software. DATA SOURCES: On November 2023, we searched relevant English and Chinese publications in PubMed, Web of Science, Cochrane Library, Embase, CNKI and Wanfang databases. RESULTS: The meta-analysis included a total of 9 RCTs, involving 655 older patients diagnosed with dementia. The findings from these studies demonstrated that horticultural therapy had a significant positive impact on various aspects of the patients' well-being when compared to conventional care. Specifically, it was found to improve cognitive function scores, alleviate symptoms of depression, enhance daily activities and enhance overall quality of life. When conducting a subgroup analysis, it was observed that horticultural therapy had a statistically significant effect on cognitive function in older patients with dementia when the intervention frequency was at least two times per week. Furthermore, interventions with a duration of less than 6 months were found to be more effective than those lasting 6 months or longer. Additionally, outdoor horticultural therapy was found to be superior to indoor interventions. Moreover, structured interventions were observed to yield better outcomes compared to non-structured interventions. CONCLUSION: More high-quality studies are needed to further corroborate these findings due to the low quality of the included studies. Horticultural therapy has been found to have a significantly positive impact on the cognitive function, depression status, ADL, and quality of life of older patients with dementia. IMPLICATIONS FOR THE PROFESSION AND/OR PATIENT CARE: We provide references for non-pharmacologic treatment of older patients with dementia. WHAT PROBLEM DID THE STUDY ADDRESS?: This study aimed to measure the efficacy of horticultural therapy in older patients with dementia across four dimensions: cognitive function, depression levels, daily living activities and overall quality of life. WHAT WERE THE MAIN FINDINGS?: In older patients with dementia, horticultural therapy has been proven to have a significant positive impact on cognitive function, depressive status, activities of daily living and quality of life. WHERE AND ON WHOM WILL THE RESEARCH HAVE AN IMPACT?: This study will inform non-pharmacological interventions for older patients with dementia worldwide. PATIENT OR PUBLIC CONTRIBUTION: No Patient or Public Contribution.

19.
Biochem Biophys Res Commun ; 735: 150674, 2024 Sep 10.
Artigo em Inglês | MEDLINE | ID: mdl-39270557

RESUMO

BACKGROUND: As a pivotal pathway of programmed cell death, necroptosis significantly contributes to the pathogenesis of respiratory disorders. However, its role in asthma is not yet fully elucidated. Therefore, this study aimed to identify markers associated with necroptosis, evaluate their functions in asthma, and explore potential therapeutic agents targeting necroptosis for the management of asthma. METHODS: Firstly, machine learning algorithms, including Least Absolute Shrinkage and Selection Operator (LASSO), Random Forest, and Support Vector Machine-Recursive Feature Elimination (SVM-RFE), were utilized to identify necroptosis-related differentially expressed genes (NRDEGs) in asthma patients compared to healthy controls. Concurrently, the expression of NRDEGs was validated using external datasets, Western blot, and quantitative real-time polymerase chain reaction (qPCR). Secondly, the clinical relevance of NRDEGs was assessed through Receiver Operating Characteristic (ROC) curve analysis and correlation with clinical indicators. Thirdly, the relationship between NRDEGs and pulmonary immune cell infiltration, as well as the signaling interactions between different cells types, were analyzed through immune infiltration and single-cell analysis. Fourthly, Gene Ontology (GO), Kyoto Encyclopedia of Genes and Genomes (KEGG), and Gene Set Enrichment Analysis (GSEA), were conducted to elucidate the functional roles of NRDEGs. Finally, compounds targeting NRDEGs were screened, and their binding affinities were evaluated using molecular docking studies. RESULTS: In asthma, necroptosis is activated, leading to the identification of four NRDEGs: NLRP3, PYCARD, ALOX15, and VDAC3. Among these, NLRP3, PYCARD, and ALOX15 are upregulated, whereas VDAC3 is downregulated in asthma. Comprehensive clinical evaluations indicated that NRDEGs hold diagnostic value for asthma. Specifically, NLRP3 was inversely correlated with forced expiratory volume in 1 s (FEV1) and forced vital capacity (FVC), while VDAC3 showed an inverse correlation with sputum neutrophils. Conversely, ALOX15 expression was positively correlated with fractional exhaled nitric oxide (FeNO) levels, as well as sputum eosinophils, blood eosinophils, and blood IgE levels. Subsequent immune infiltration analysis revealed associations between NRDEGs and activated dendritic cells, mast cells, and eosinophils. Single-cell RNA sequencing (scRNA-seq) further confirmed the communication signals between myeloid dendritic cells, fibroblasts, neutrophils, and helper T cells, predominantly related to fibrosis and immune-inflammatory responses. Pathway enrichment analysis demonstrated that NRDEGs are involved in ribosomal function, oxidative phosphorylation, and fatty acid metabolism. Finally, resveratrol and triptonide were identified as potential therapeutic agents targeting the proteins encoded by NRDEGs for asthma treatment. CONCLUSIONS: The necroptosis pathway is activated in asthma, with NRDEGs-namely PYCARD, NLRP3, ALOX15, and VDAC3-correlated with declines in lung function and airway inflammation. These genes serve as reliable predictors of asthma risk and are involved in the regulation of the immune-inflammatory microenvironment. Resveratrol and triptolide have been identified as promising therapeutic candidates due to their potential to target the proteins encoded by these genes.

20.
Front Cell Infect Microbiol ; 14: 1446580, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-39239636

RESUMO

Hypertensive disorders of pregnancy (HDP) are severe complications of pregnancy with high morbidity and are a major cause of increased maternal and infant morbidity and mortality. Currently, there is a lack of effective early diagnostic indicators and safe and effective preventive strategies for HDP in clinical practice, except for monitoring maternal blood pressure levels, the degree of proteinuria, organ involvement and fetal conditions. The intestinal microbiota consists of the gut flora and intestinal environment, which is the largest microecosystem of the human body and participates in material and energy metabolism, gene expression regulation, immunity regulation, and other functions. During pregnancy, due to changes in hormone levels and altered immune function, the intestinal microecological balance is affected, triggering HDP. A dysregulated intestinal microenvironment influences the composition and distribution of the gut flora and changes the intestinal barrier, driving beneficial or harmful bacterial metabolites and inflammatory responses to participate in the development of HDP and promote its malignant development. When the gut flora is dysbiotic and affects blood pressure, supplementation with probiotics and dietary fiber can be used to intervene. In this review, the interaction between the intestinal microbiota and HDP was investigated to explore the feasibility of the gut flora as a novel biomarker of HDP and to provide a new strategy and basis for the prevention and treatment of clinical HDP.


Assuntos
Biomarcadores , Microbioma Gastrointestinal , Probióticos , Humanos , Gravidez , Feminino , Probióticos/uso terapêutico , Hipertensão Induzida pela Gravidez/microbiologia , Disbiose , Animais , Fibras na Dieta
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