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1.
Front Pharmacol ; 15: 1483431, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-39421672

RESUMEN

Osteoporosis becomes a global public health concern due to its rising prevalence and substantial impact on life quality. Salvia miltiorrhiza Bunge (Salviae Miltiorrhizae Radix et Rhizoma, SM) has been firstly recorded in Shen Nong's Herbal Classic, and is frequently prescribed in conjunction with other herbs for the management of osteoporosis. This systematic review aims to comprehensively analyze the recent advances of SM on osteoporosis in traditional Chinese clinical uses and preclinical investigations. Literature encompassing pertinent studies were systematically retrieved across multiple databases, including the PubMed, Web of Science, Chinese National Knowledge Infrastructure, Chinese VIP Database, and Chinese Biomedical Literature Database. Original investigations spanning from February 2014 to March 2024, including traditional Chinese medicine (TCM) clinical trials and preclinical studies, were employed to analyze the effects and actions of SM on osteoporosis. Thirty-eight TCM clinical trials were identified to employ SM in combination with other herbs for the management of primary and secondary osteoporosis. The overall efficacy was between 77% and 96.67%. Forty preclinical studies were identified to investigate the effects and actions of SM and/or its ingredients on osteoporosis. The anti-osteoporosis actions of this herb may be attributed to inhibit osteoclastogenesis/bone resorption and promote osteoblastogenesis/osteogenesis. The ethanol extracts and its ingredients (tanshinones) inhibit osteoclastogenesis/bone resorption by inhibiting the MAPK/NF-κB/NFATc1 signaling pathway and cathepsin K-induced collagen degradation. Both ethanol extracts (tanshinones) and water extracts (Sal B and tanshinol) contribute to osteoblastogenesis by promoting osteogenesis and angiogenesis via activation of the Wnt/ß-catenin/VEGF and ERK/TAZ pathways, and eliminating ROS production targeting Nrf2/ARE/HO-1 pathway. In conclusions, SM may offer a novel strategy for osteoporosis management. Well-designed clinical trials are still needed to evaluate the actions of this herb and its ingredients on bone remodeling.

2.
J Exp Clin Cancer Res ; 43(1): 267, 2024 Sep 30.
Artículo en Inglés | MEDLINE | ID: mdl-39343925

RESUMEN

BACKGROUND: Long noncoding RNAs (lncRNAs) are widely involved in cancer development and progression, but the functions of most lncRNAs have not yet been elucidated. Metastasis is the main factor restricting the therapeutic outcomes of various cancer types, including oral squamous cell carcinoma (OSCC). Therefore, exploring the key lncRNAs that regulate OSCC metastasis and elucidating their molecular mechanisms will facilitate the development of new strategies for effective OSCC therapy. METHODS: We analyzed the lncRNA expression profiles of tumor tissues from OSCC patients with and without cervical lymph node metastasis, and OSCC cell lines. We revealed high expression of oral squamous cell carcinoma metastasis-related lncRNA 1 (lncOCMRL1) in OSCC patient tumor tissues with lymph node metastasis and highly metastatic OSCC cell lines. The effects of lncOCMRL1 knockdown on the invasion, migration and proliferation abilities of OSCC cells were explored through qRT-PCR, Transwell, colony formation, and cell proliferation experiments. The mechanism by which lncOCMRL1 promotes OSCC metastasis and proliferation was explored through RNA pull-down, silver staining, mass spectrometry, RIP, and WB experiments. To increase its translational potential, we developed a reduction-responsive nanodelivery system to deliver siRNA for antitumor therapy. RESULTS: We determined that lncOCMRL1 is highly expressed in OSCC metastatic tumor tissues and cells. Functional studies have shown that high lncOCMRL1 expression can promote the growth and metastasis of OSCC cells both in vivo and in vitro. Mechanistically, lncOCMRL1 could induce epithelial-mesenchymal transition (EMT) via the suppression of RRM2 ubiquitination and thereby promote the proliferation, invasion, and migration of OSCC cells. We further constructed reduction-responsive nanoparticles (NPs) for the systemic delivery of siRNAs targeting lncOCMRL1 and demonstrated their high efficacy in silencing lncOCMRL1 expression in vivo and significantly inhibited OSCC tumor growth and metastasis. CONCLUSIONS: Our results suggest that lncOCMRL1 is a reliable target for blocking lymph node metastasis in OSCC.


Asunto(s)
Proliferación Celular , Transición Epitelial-Mesenquimal , Neoplasias de la Boca , ARN Largo no Codificante , Ribonucleósido Difosfato Reductasa , Humanos , Neoplasias de la Boca/patología , Neoplasias de la Boca/genética , Neoplasias de la Boca/metabolismo , ARN Largo no Codificante/genética , ARN Largo no Codificante/metabolismo , Ratones , Animales , Femenino , Transición Epitelial-Mesenquimal/genética , Ribonucleósido Difosfato Reductasa/metabolismo , Ribonucleósido Difosfato Reductasa/genética , Masculino , Línea Celular Tumoral , Carcinoma de Células Escamosas/genética , Carcinoma de Células Escamosas/patología , Carcinoma de Células Escamosas/metabolismo , Metástasis de la Neoplasia , Movimiento Celular , Carcinoma de Células Escamosas de Cabeza y Cuello/genética , Carcinoma de Células Escamosas de Cabeza y Cuello/patología , Carcinoma de Células Escamosas de Cabeza y Cuello/metabolismo , Persona de Mediana Edad , Ratones Desnudos , Regulación Neoplásica de la Expresión Génica , Metástasis Linfática
3.
Clinics (Sao Paulo) ; 79: 100485, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-39316895

RESUMEN

OBJECTIVE: In the context of postoperative anal pain, understanding the intricate mechanisms and effective interventions is paramount. This study investigates the role of Muscarinic Acetylcholine Receptors (mAChRs) and the IP3-Ca2+-CaM signaling pathway in a rat model of postoperative anal pain, exploring the potential analgesic effects of electroacupuncture. METHODS: Comprehensive approaches involving mechanical sensitivity assays, Western blotting, immunohistochemistry, and intracellular calcium concentration measurement were used. RESULTS: The authors found elevated mAChRs expression in the postoperative pain model. Antagonizing mAChRs reduced pain sensitivity and attenuated the IP3-Ca2+-CaM pathway. Remarkably, electroacupuncture treatment further mitigated pain, potentially by suppressing this signaling cascade. INTERPRETATION: These findings reveal a novel connection between mAChRs and the IP3-Ca2+-CaM pathway in postoperative anal pain and suggest electroacupuncture as a promising avenue for pain relief through these mechanisms, offering insights into innovative strategies for postoperative pain management.


Asunto(s)
Electroacupuntura , Hemorreoidectomía , Dolor Postoperatorio , Ratas Sprague-Dawley , Receptores Muscarínicos , Transducción de Señal , Animales , Electroacupuntura/métodos , Dolor Postoperatorio/terapia , Masculino , Hemorreoidectomía/métodos , Receptores Muscarínicos/metabolismo , Puntos de Acupuntura , Canal Anal/cirugía , Modelos Animales de Enfermedad , Western Blotting , Ratas , Inmunohistoquímica , Calcio/metabolismo , Resultado del Tratamiento
4.
Sci Rep ; 14(1): 17951, 2024 08 02.
Artículo en Inglés | MEDLINE | ID: mdl-39095450

RESUMEN

Slow transit constipation (STC) is a long-lasting and prevalent intestinal condition, marked by hard, dry feces. The primary cause of STC may be attributed to an imbalance in the gut's microbial community and alterations in its metabolic byproducts. Tongbian formula (TB), a traditional Chinese medicinal formula, has been used to treat STC and shows a great effect on relieving constipation. The role of TB in regulating intestinal microbiota has not been fully elucidated. Herein, we investigated the potential effect of TB on gut microbiota and further explored the potential mechanism behind its effects. Our study demonstrated that TB significantly increased fecal water content and intestinal ink propulsion rate in loperamide (Lope)-induced STC rats. 5-HT signaling was suppressed in STC colon tissue, and the abundance of butyric acid (BA) in colonic contents was significantly down-regulated after Lope treatment. Notably, TB administration led to the restoration of microbial dysbiosis and the up-regulation of BA content, subsequently activating 5-HT signaling pathways. When BA was combined with a tryptophan hydroxylase-1 (TPH1) inhibitor, which is crucial for 5-HT synthesis, its therapeutic efficacy for treating STC was compromised. TB alleviates STC by reversing the intestinal microbiota imbalance and activating the 5-HT signaling in the colon through increasing BA levels. These findings suggest that TB is an ideal candidate for STC treatment.


Asunto(s)
Ácido Butírico , Estreñimiento , Medicamentos Herbarios Chinos , Microbioma Gastrointestinal , Serotonina , Transducción de Señal , Estreñimiento/tratamiento farmacológico , Estreñimiento/metabolismo , Animales , Ácido Butírico/farmacología , Transducción de Señal/efectos de los fármacos , Medicamentos Herbarios Chinos/farmacología , Microbioma Gastrointestinal/efectos de los fármacos , Ratas , Serotonina/metabolismo , Masculino , Ratas Sprague-Dawley , Tránsito Gastrointestinal/efectos de los fármacos , Loperamida , Modelos Animales de Enfermedad , Colon/metabolismo , Colon/efectos de los fármacos
5.
J Extracell Vesicles ; 13(7): e12490, 2024 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-39051742

RESUMEN

Extracellular vesicles (EVs) are emerging as promising carriers for the delivery of therapeutic biologics. Genetic engineering represents a robust strategy for loading proteins of interest into EVs. Identification of EV-enriched proteins facilitates protein cargo loading efficiency. Many EV-enriched proteins are sorted into EVs via an endosomal sorting complex required for transport (ESCRT)-dependent pathway. In parallel, viruses hijack this EV biosynthesis machinery via conserved late domain motifs to promote egress from host cells. Inspired by the similarity of biogenesis between EVs and viruses, we developed a synthetic, Late domain-based EV scaffold protein that enables the display of a set of single chain variable fragments (scFvs) on the EV surface. We named this scaffold the Late domain-based exosomal antibody surface display platform (LEAP). We applied the LEAP scaffold to reprogramme HEK293T cell-derived EVs to elicit T-cell anti-tumor immunity by simultaneously displaying αPD-L1 and αCD3 scFvs on the EV surface (denoted as αPD-L1×αCD3 bispecific T-cell engaging exosomes, BiTExos). We demonstrated that αPD-L1×αCD3 BiTExos actively redirected T cells to bind to PD-L1+ tumor cells, promoting T-cell activation, proliferation and tumoricidal cytokine production. Furthermore, the αPD-L1×αCD3 BiTExos promoted T-cell infiltration into the tumor microenvironment to mitigate the tumor burden in vivo. Our study suggested that the LEAP scaffold may serve as a platform for EV surface display and could be applied for a broad range of EV-based biomedical applications.


Asunto(s)
Antígeno B7-H1 , Complejo CD3 , Vesículas Extracelulares , Anticuerpos de Cadena Única , Linfocitos T , Humanos , Vesículas Extracelulares/inmunología , Vesículas Extracelulares/metabolismo , Antígeno B7-H1/metabolismo , Antígeno B7-H1/inmunología , Animales , Complejo CD3/inmunología , Complejo CD3/metabolismo , Células HEK293 , Linfocitos T/inmunología , Linfocitos T/metabolismo , Ratones , Anticuerpos de Cadena Única/inmunología , Exosomas/metabolismo , Exosomas/inmunología , Neoplasias/inmunología , Neoplasias/terapia , Activación de Linfocitos/inmunología
6.
JAMA Intern Med ; 184(7): 727-735, 2024 Jul 01.
Artículo en Inglés | MEDLINE | ID: mdl-38829648

RESUMEN

Importance: Previous studies have shown that Jinlida (JLD) granules, an approved treatment for type 2 diabetes in China, can reduce blood glucose level, reduce glycated hemoglobin (HbA1c), and improve insulin resistance in people with type 2 diabetes. Objective: To evaluate the effect of long-term administration of JLD vs placebo on the incidence of diabetes in participants with impaired glucose tolerance (IGT) and multiple metabolic abnormalities. Design, Setting, and Participants: This multicenter, double-blind, placebo-controlled randomized clinical trial (FOCUS) was conducted across 35 centers in 21 cities in China from June 2019 to February 2023. Individuals aged 18 to 70 years with IGT and multiple metabolic abnormalities were enrolled. Intervention: Participants were randomly allocated 1:1 to receive JLD or placebo (9 g, 3 times per day, orally). They continued this regimen until they developed diabetes, withdrew from the study, were lost to follow-up, or died. Main Outcomes and Measures: The primary outcome was the occurrence of diabetes, which was determined by 2 consecutive oral glucose tolerance tests. Secondary outcomes included waist circumference; fasting and 2-hour postprandial plasma glucose levels; HbA1c; fasting insulin level; homeostatic model assessment for insulin resistance (HOMA-IR); total cholesterol, low-density lipoprotein cholesterol, and triglyceride levels; ankle-brachial index; and carotid intima-media thickness. Results: A total of 889 participants were randomized, of whom 885 were in the full analysis set (442 in the JLD group; 443 in the placebo group; mean [SD] age, 52.57 [10.33] years; 463 [52.32%] female). Following a median observation period of 2.20 years (IQR, 1.27-2.64 years), participants in the JLD group had a lower risk of developing diabetes compared with those in the placebo group (hazard ratio, 0.59; 95% CI, 0.46-0.74; P < .001). During the follow-up period, the JLD group had a between-group difference of 0.95 cm (95% CI, 0.36-1.55 cm) in waist circumference, 9.2 mg/dL (95% CI, 5.4-13.0 mg/dL) in 2-hour postprandial blood glucose level, 3.8 mg/dL (95% CI, 2.2-5.6 mg/dL) in fasting blood glucose level, 0.20% (95% CI, 0.13%-0.27%) in HbA1c, 6.6 mg/dL (95% CI, 1.9-11.2) in total cholesterol level, 4.3 mg/dL (95% CI, 0.8-7.7 mg/dL) in low-density lipoprotein cholesterol level, 25.7 mg/dL (95% CI, 15.9-35.4 mg/dL) in triglyceride levels, and 0.47 (95% CI, 0.12-0.83) in HOMA-IR compared with the placebo group. After 24 months of follow-up, the JLD group had a significant improvement in ankle-brachial index and waist circumference compared with the placebo group. Conclusions and Relevance: The findings suggest that JLD can reduce the risk of diabetes in participants with IGT and multiple metabolic abnormalities. Trial Registration: Chinese Clinical Trial Register: ChiCTR1900023241.


Asunto(s)
Diabetes Mellitus Tipo 2 , Medicamentos Herbarios Chinos , Intolerancia a la Glucosa , Humanos , Persona de Mediana Edad , Femenino , Masculino , Diabetes Mellitus Tipo 2/sangre , Diabetes Mellitus Tipo 2/complicaciones , Método Doble Ciego , Adulto , Medicamentos Herbarios Chinos/uso terapéutico , Glucemia/metabolismo , Anciano , China/epidemiología , Hemoglobina Glucada/metabolismo , Hemoglobina Glucada/análisis , Resistencia a la Insulina , Prueba de Tolerancia a la Glucosa
7.
Biomed Pharmacother ; 176: 116760, 2024 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-38788595

RESUMEN

With the increasing prevalence of metabolic disorders, hyperglycemia has become a common risk factor that endangers people's lives and the need for new drug solutions is burgeoning. Trans-2, 4-dimethoxystilbene (TDMS), a synthetic stilbene, has been found as a novel hypoglycemic small molecule from glucose consumption test. Normal C57BL/6 J mice, mouse models of type 1 diabetes mellitus and diet-induced obesity subjected to TDMS gavage were found with lower glycemic levels and better glycemic control. TDMS significantly improved the symptoms of polydipsia and wasting in type 1 diabetic mice, and could rise their body temperature at the same time. It was found that TDMS could promote the expression of key genes of glucose metabolism in HepG2, as do in TDMS-treated liver, while it could improve the intestinal flora and relieve intestinal metabolic dysbiosis in hyperglycemic models, which in turn affected its function in the liver, forming the gut-liver axis. We further fished PPARγ by virtual screening that could be promoted by TDMS both in-vitro and in-vivo, which was regulated by upstream signaling of AMPKα phosphorylation. As a novel hypoglycemic small molecule, TDMS was proven to be promising with its glycemic improvements and amelioration of diabetes symptoms. It promoted glucose absorption and utilization by the liver and improved the intestinal flora of diabetic mice. Therefore, TDMS is expected to become a new hypoglycemic drug that acts through gut-liver axis via AMPKα-PPARγ signaling pathway in improving glycemic metabolism, bringing new hope to patients with diabetes and glucose metabolism disorders.


Asunto(s)
Proteínas Quinasas Activadas por AMP , Microbioma Gastrointestinal , Hipoglucemiantes , Hígado , Ratones Endogámicos C57BL , PPAR gamma , Transducción de Señal , Estilbenos , Animales , Microbioma Gastrointestinal/efectos de los fármacos , Hipoglucemiantes/farmacología , Hígado/efectos de los fármacos , Hígado/metabolismo , Humanos , PPAR gamma/metabolismo , Proteínas Quinasas Activadas por AMP/metabolismo , Ratones , Masculino , Estilbenos/farmacología , Transducción de Señal/efectos de los fármacos , Células Hep G2 , Diabetes Mellitus Experimental/tratamiento farmacológico , Glucemia/efectos de los fármacos , Glucemia/metabolismo
8.
Nutrients ; 16(10)2024 May 10.
Artículo en Inglés | MEDLINE | ID: mdl-38794681

RESUMEN

Recent interest in preventing the development of osteoporosis has focused on the regulation of redox homeostasis. However, the action of lycopene (LYC), a strong natural antioxidant compound, on osteoporotic bone loss remains largely unknown. Here, we show that oral administration of LYC to OVX rats for 12 weeks reduced body weight gain, improved lipid metabolism, and preserved bone quality. In addition, LYC treatment inhibited ROS overgeneration in serum and bone marrow in OVX rats, and in BMSCs upon H2O2 stimulation, leading to inhibiting adipogenesis and promoting osteogenesis during bone remodeling. At the molecular level, LYC improved bone quality via an increase in the expressions of FoxO1 and Runx2 and a decrease in the expressions of PPARγ and C/EBPα in OVX rats and BMSCs. Collectively, these findings suggest that LYC attenuates osteoporotic bone loss through promoting osteogenesis and inhibiting adipogenesis via regulation of the FoxO1/PPARγ pathway driven by oxidative stress, presenting a novel strategy for osteoporosis management.


Asunto(s)
Adipogénesis , Licopeno , Células Madre Mesenquimatosas , Osteogénesis , Transducción de Señal , Animales , Femenino , Ratas , Adipogénesis/efectos de los fármacos , Antioxidantes/farmacología , Proteína Forkhead Box O1/metabolismo , Licopeno/farmacología , Células Madre Mesenquimatosas/efectos de los fármacos , Células Madre Mesenquimatosas/metabolismo , Osteogénesis/efectos de los fármacos , Osteoporosis/prevención & control , Ovariectomía , Estrés Oxidativo/efectos de los fármacos , PPAR gamma/metabolismo , Ratas Sprague-Dawley , Especies Reactivas de Oxígeno/metabolismo , Transducción de Señal/efectos de los fármacos
9.
J Cell Mol Med ; 28(7): e18190, 2024 04.
Artículo en Inglés | MEDLINE | ID: mdl-38494844

RESUMEN

Systemic lupus erythematosus (SLE), a multifactorial autoimmune disease, can affect the brain and cause neuropsychiatric dysfunction, also named neuropsychiatric lupus (NPSLE). Microglial activation is observed in NPSLE patients. However, the mechanisms regulating microglia-mediated neurotoxicity in NPSLE remain elusive. Here, we showed that M1-like proinflammatory cytokine levels were increased in the cerebrospinal fluid (CSF) of SLE patients, especially those with neuropsychiatric symptoms. We also demonstrated that MRL/lpr lupus mice developed anxiety-like behaviours and cognitive deficits in the early and active phases of lupus, respectively. An increase in microglial number was associated with upregulation of proinflammatory cytokines in the MRL/lpr mouse brain. RNA sequencing revealed that genes associated with phagocytosis and M1 polarization were upregulated in microglia from lupus mice. Functionally, activated microglia induced synaptic stripping in vivo and promoted neuronal death in vitro. Finally, tofacitinib ameliorated neuropsychiatric disorders in MRL/lpr mice, as evidenced by reductions in microglial number and synaptic/neuronal loss and alleviation of behavioural abnormalities. Thus, our results indicated that classically activated (M1) microglia play a crucial role in NPSLE pathogenesis. Minocycline and tofacitinib were found to alleviate NPSLE by inhibiting micrglial activation, providing a promising therapeutic strategy.


Asunto(s)
Lupus Eritematoso Sistémico , Vasculitis por Lupus del Sistema Nervioso Central , Humanos , Ratones , Animales , Microglía , Depresión/tratamiento farmacológico , Ratones Endogámicos MRL lpr , Encéfalo , Lupus Eritematoso Sistémico/genética , Citocinas
10.
Phytomedicine ; 128: 155375, 2024 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-38507853

RESUMEN

BACKGROUND: Osteoporosis (OP) is a prevalent chronic metabolic bone disease for which limited countermeasures are available. Cnidii Fructus (CF), primarily derived from Cnidium monnieri (L.) Cusson., has been tested in clinical trials of traditional Chinese medicine for the management of OP. Accumulating preclinical studies indicate that CF may be used against OP. MATERIALS AND METHODS: Comprehensive documentation and analysis were conducted to retrieve CF studies related to its main phytochemical components as well as its pharmacokinetics, safety and pharmacological properties. We also retrieved information on the mode of action of CF and, in particular, preclinical and clinical studies related to bone remodeling. This search was performed from the inception of databases up to the end of 2022 and included PubMed, China National Knowledge Infrastructure, the National Science and Technology Library, the China Science and Technology Journal Database, Weipu, Wanfang, the Web of Science and the China National Patent Database. RESULTS: CF contains a wide range of natural active compounds, including osthole, bergapten, imperatorin and xanthotoxin, which may underlie its beneficial effects on improving bone metabolism and quality. CF action appears to be mediated via multiple processes, including the osteoprotegerin (OPG)/receptor activator of nuclear factor-κB ligand (RANKL)/receptor activator of nuclear factor-κB (RANK), Wnt/ß-catenin and bone morphogenetic protein (BMP)/Smad signaling pathways. CONCLUSION: CF and its ingredients may provide novel compounds for developing anti-OP drugs.


Asunto(s)
Cnidium , Medicamentos Herbarios Chinos , Frutas , Osteoporosis , Humanos , Medicamentos Herbarios Chinos/farmacología , Medicamentos Herbarios Chinos/química , Medicamentos Herbarios Chinos/uso terapéutico , Osteoporosis/tratamiento farmacológico , Cnidium/química , Frutas/química , Animales , Medicina Tradicional China , Cumarinas/farmacología , Cumarinas/uso terapéutico , Fitoquímicos/farmacología , 5-Metoxipsoraleno , Remodelación Ósea/efectos de los fármacos , Conservadores de la Densidad Ósea/farmacología , Conservadores de la Densidad Ósea/uso terapéutico , Ligando RANK
11.
Luminescence ; 39(3): e4715, 2024 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-38506397

RESUMEN

Short-chain fatty acids, such as butyrate, play pivotal roles in various physiological processes within the human body. Recent advances in understanding cell death pathways, specifically ferroptosis, have unveiled unique opportunities for therapeutic development. Ferroptosis is linked to iron accumulation and oxidative stress, whereas butyrate has emerged as a cellular protector against oxidative stress, potentially inhibiting ferroptosis. Hydrogen peroxide (H2 O2 ) is a key player in oxidative stress, and its monitoring has gained significance in disease mechanisms. We present an innovative fluorescent probe, HOP, capable of dynamically tracking intracellular H2 O2 levels, enabling spatial and temporal visualization. The probe exhibits high accuracy (limit of detection = 0.14 µM) and sensitivity, paving the way for disease diagnosis and treatment innovations. Importantly, HOP displayed minimal toxicity, making it suitable for cellular applications. Cellular imaging experiments demonstrated its ability to penetrate cells and monitor intracellular H2 O2 levels accurately. The HOP probe confirmed H2 O2 as a critical marker in ferroptosis. Our innovative HOP provides a powerful tool for tracking intracellular H2 O2 levels and offers insights into the modulation of ferroptosis, potentially opening new avenues for disease research and therapeutic interventions.


Asunto(s)
Ferroptosis , Peróxido de Hidrógeno , Humanos , Peróxido de Hidrógeno/farmacología , Peróxido de Hidrógeno/metabolismo , Colorantes Fluorescentes/farmacología , Ácido Butírico/farmacología , Estrés Oxidativo
12.
J Oral Pathol Med ; 53(2): 159-168, 2024 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-38321252

RESUMEN

BACKGROUND: The incidence and mortality of tongue squamous cell carcinoma have shown an alarming increase in recent years. This study aimed to investigate the potential of HHLA2 as an immune checkpoint in comparison to PD-L1. METHODS: We obtained RNA-seq data from TCGA to study HHLA2 and PD-L1 expression across various tissues. Using the CIBERSORT package, we estimated cell type abundances within mixed populations based on gene expression profiles. Immunohistochemistry was performed to analyze HHLA2 and PD-L1 expression in Tongue squamous cell carcinoma. Prognostic evaluation was carried out with Kaplan-Meier curves and the log-rank test. To explore factors affecting HHLA2, univariate and multivariate Cox regression analyses were conducted with the COX regression model. Additionally, we used single-cell RNA sequencing data from the GEO database for gene set enrichment analysis with genes strongly correlated with HHLA2. RESULTS: Our analysis of RNA-seq data unveiled a significant upregulation of HHLA2 and PD-L1 expression in primary tumors when compared with normal tissue. HHLA2 exhibited a positive expression rate of 36.9%, while PD-L1 had a positive expression rate of 24.6%. HHLA2 emerged as a noteworthy independent risk factor impacting the overall survival of Tongue squamous cell carcinoma patients. The analysis of scRNA-seq data shed light on the involvement of HHLA2 in key pathways related to cell cycle regulation and interferon alpha/beta signaling. CONCLUSIONS: This study suggests that in the context of Tongue squamous cell carcinoma, HHLA2 may represent a more promising target for immunotherapy when compared with PD-L1.


Asunto(s)
Carcinoma de Células Escamosas , Neoplasias de la Lengua , Humanos , Carcinoma de Células Escamosas/genética , Antígeno B7-H1/genética , Antígeno B7-H1/metabolismo , Neoplasias de la Lengua/genética , Biomarcadores de Tumor/metabolismo , Pronóstico , Inmunoglobulinas/genética , Inmunoglobulinas/metabolismo
13.
J Intell ; 11(12)2023 Dec 06.
Artículo en Inglés | MEDLINE | ID: mdl-38132840

RESUMEN

Developing algebraic thinking in elementary school has gained consensus among mathematics educators. The objective of this study is to understand the developmental trajectory of early algebraic thinking in elementary school students so as to assist teachers and curriculum developers in implementing instruction that aligns with students' cognitive development. This study adopted a cross-sectional survey approach, involving 526 students from grades three to five in Shanghai, who were tested using a 12-item assessment that measured three aspects: "generalized arithmetic", "functional thinking", and "quantitative reasoning". Latent class analysis was used to analyze students' response strategies, and, in conjunction with individual interviews, this study identified potential developmental pathways in students' early algebraic thinking, progressing from "arithmetic thinking" to "concrete algebraic thinking", "generalized algebraic thinking", and finally to "symbolic algebraic thinking". As thinking levels advanced, significant differences in students' response strategies emerged, with notable improvements in "generalization abilities" and "symbolization abilities". This study suggests that educational practices should encompass content in elementary arithmetic curricula that fosters generalization abilities. Additionally, providing students with opportunities for diverse representations can effectively stimulate the development of early algebraic thinking.

14.
J Environ Manage ; 345: 118916, 2023 Nov 01.
Artículo en Inglés | MEDLINE | ID: mdl-37690244

RESUMEN

The commitment to waste management has gained increasing momentum as global waste generation continues to skyrocket and threaten the environment. However, detailed assessments and clear insights remain absent to address the global waste utilization conundrum. This study evaluated the impact-oriented energy, carbon, and water (ECW) footprints of three typical scenarios for a waste recycling activity (i.e., waste rubber recycling) from environmental and economic dimensions, and explored key factors, nexus characteristics, and optimization measures. Results indicated that the rubber powder as an asphalt modifier scenario had a 93% greater environmental impact and 87% higher economic cost compared with the pyrolysis and reclaimed rubber production scenarios. Key processes, such as direct processes, electricity generation, and transportation, were identified as the major contributors to the ECW footprints, with the internal costs of raw materials, equipment, and taxes coupled with the external costs of human health dominating the economic impact. The nexus analysis results highlighted the urgent need to optimize the energy system for waste rubber recycling. Greening the production process revealed the benefits, with natural additives mitigating 85% of the environmental burden and 97% of the external costs compared with conventional additives. Industrial green microgrids, clean energy generation, proximity waste management, and electrified transportation were explored to foster sustainable optimization of waste rubber recycling systems. Moreover, a joint tax-subsidy mechanism for rubber production-recycling systems can stimulate recycling-oriented product design and increase the motivation to recycle waste rubber.


Asunto(s)
Huella de Carbono , Goma , Humanos , Impuestos , Carbono , Electricidad
15.
J Proteome Res ; 22(10): 3332-3347, 2023 Oct 06.
Artículo en Inglés | MEDLINE | ID: mdl-37616386

RESUMEN

Brown adipose tissue (BAT) thermogenesis confers beneficial effects on metabolic diseases such as obesity and type-2 diabetes. Nevertheless, the mechanism and lipid driving the process that evokes this response have not been investigated yet. Here, a multiomics approach of integrative transcriptomics and lipidomics is used to explore the mechanism of regulating thermogenesis in BAT and providing promising lipid biomarkers and biomarker genes for thermogenic activators as antiobesity drugs. Lipidomics analysis demonstrated that a high abundance of glycerophospholipids and sphingolipids was more significant in BAT than in WAT. Enrichment analysis of upregulated DEGs between WAT and BAT screened suggested that the differences were mainly involved in lipid metabolism. Besides, ß3-adrenergic agonist stimulation reduced the levels of TAG and DAG and increased the content of PC, PE, CL, and LPC and expression of genes involved in thermogenesis, fatty acid elongation, and glycerophospholipid metabolism in BAT. In this study, based on interpreting the inherent characterization of BAT as thermogenic tissue through comparison with WAT as fat storage tissue, adrenergic stimulation-induced BAT thermogenesis further identified specific lipid biomarkers (7 TAG species, 10 PC species, 1 LPC species, and 1 CL species) and Elovl3 and Crat gene biomarkers, which may provide targets for combating obesity by boosting BAT thermogenesis.

16.
Int Heart J ; 64(4): 708-716, 2023 Jul 29.
Artículo en Inglés | MEDLINE | ID: mdl-37460317

RESUMEN

This study aimed to investigate the short-term predictors of aortic-related adverse events in patients with acute type B aortic intramural hematoma (IMH) initially treated with optimized medical therapy.A total of 157 patients with acute type B IMH were included in this study. These patients were divided into worsening group (n = 45) and stable group (n = 112) based on the incidence of aortic-related adverse events. The clinical data and imaging features of the two groups were compared. Multivariate logistic regression analysis of predictors of aortic-related adverse events in type B IMH was performed. Receiver operating characteristic (ROC) curve was applied to determine the optimal cutoff value for maximum descending aorta diameter (MDAD). Kaplan-Meier survival curve was used to analyze the incidence of aortic-related adverse events.Worsening and stable groups were statistically significant in diuretics, abnormal D-dimer level, observation endpoint systolic blood pressure (SBP), MDAD, aortic atherosclerosis, ulcer-like projection (ULP), and thickness of hematoma (P < 0.05). Multivariate logistic regression showed that abnormal D-dimer level (OR = 12.464, P = 0.025), MDAD (OR = 1.113, P = 0.030), and ULP (OR = 5.849, P = 0.022) were powerful independent risk factors for predicting aortic-related adverse events in type B IMH, and observation endpoint SBP within 100-120 mmHg (OR = 0.225, P = 0.014) was a protective factor for predicting aortic-related adverse events in type B IMH. The cutoff value of MDAD was 35.2 mm.Short-term imaging is recommended for type B IMH patients with abnormal D-dimer level, MDAD > 35.2 mm, and ULP. Blood pressure should also be strictly monitored and controlled during the acute phase of IMH.

18.
Behav Sci (Basel) ; 13(5)2023 May 12.
Artículo en Inglés | MEDLINE | ID: mdl-37232643

RESUMEN

The emergence of artificial intelligence has made adaptive learning possible, but building an adaptive system requires a comprehensive understanding of students' cognition. The cognitive model provides a crucial theoretical framework to explore students' cognitive attributes, making it vital for learning assessment and adaptive learning. This study investigates 52 experts, including primary and secondary school teachers, mathematics education experts, and graduate students, based on the 16 cognitive attributes in the TIMSS 2015 assessment framework. Through an analysis of their attribute questionnaires, the Interpretive structural modeling (ISM) method is used to construct a five-level mathematical cognitive model. The model is then revised through oral reports and expert interviews, resulting in a final cognitive model ranging from "memorize" to "justify". The cognitive model describes the relationship between different attributes in detail, enabling the development of adaptive systems and aiding in the diagnosis of students' cognitive development and learning paths in mathematics.

19.
J Cardiothorac Surg ; 18(1): 180, 2023 May 11.
Artículo en Inglés | MEDLINE | ID: mdl-37170323

RESUMEN

BACKGROUNDS: Survival and aortic-related adverse events after thoracic endovascular aortic repair (TEVAR) for aortic intramural hematoma (IMH) and aortic dissection (AD) are controversial. We aimed to assess the preoperative characteristics and to evaluate TEVAR outcomes of acute type B IMH and AD. METHODS: Between June 2002 and May 2021, 83 patients with acute type B IMH and 755 patients with acute type B AD underwent TEVAR at the General Hospital of Northern Theater Command. We retrospectively analyzed data from these patients, including clinical characteristics and follow-up outcomes. RESULTS: The patients with IMH were significantly older than the ones with AD (P < 0.001). Diabetes mellitus (P = 0.035) and ischemic cerebrovascular disease (P = 0.017) were more common in the IMH group than in the AD group. The results demonstrated a less long-term aortic-related death-free survival rate in the IMH group than the AD group for all the patients (P = 0.014) and the matched patients (P = 0.027). It also presents a lower long-term overall survival rate (P = 0.047) and aortic-related event-free rate (P = 0.048) in the IMH group than in the matched patients. CONCLUSIONS: Compared with AD patients, patients with IMH who underwent TEVAR had a worse long-term outcome of aortic-related survival in all and matched patients.


Asunto(s)
Aneurisma de la Aorta Torácica , Enfermedades de la Aorta , Disección Aórtica , Humanos , Reparación Endovascular de Aneurismas , Estudios Retrospectivos , Hematoma Intramural Aórtico , Puntaje de Propensión , Enfermedades de la Aorta/cirugía , Disección Aórtica/cirugía , Hematoma/cirugía , Aneurisma de la Aorta Torácica/cirugía , Resultado del Tratamiento
20.
Food Funct ; 14(11): 5090-5104, 2023 Jun 06.
Artículo en Inglés | MEDLINE | ID: mdl-37165735

RESUMEN

The inflammation of the pancreatic islets triggers ß cell dysfunction and type 2 diabetes mellitus (T2DM) onset. While dietary lycopene consumption contributes to protection against T2DM in animal studies, the potential mechanism of this compound in the regulation of islet function in T2DM remains largely unclear. In this study, by using anti-diabetic metformin as a positive control, we demonstrated that lycopene treatment suppressed islet inflammation and apoptosis in both high-fat diet (HFD)/streptozotocin (STZ)-induced diabetic mice and in Min6 cells exposed to high glucose/palmitic acid (HG/PA)-RAW264.7 conditioned medium. Lycopene intervention resulted in M1/M2 macrophage polarization homeostasis, which is associated with increased insulin secretion, decreased fasting blood glucose levels, and improved lipid profiles in diabetic mice. Furthermore, the protective actions of lycopene were associated with the down-regulation of the TLR4/MyD88/NF-κB signaling pathway, which is positively related to inflammation in both diabetic mice and Min6 cells. Collectively, our findings indicated that lycopene ameliorates islet function and apoptosis and attenuates hyperglycemia and dyslipidemia by the regulation of the TLR4/MyD88/NF-κB signaling pathway. This study highlights dietary lycopene consumption as a novel strategy for the management of patients with diabetes.


Asunto(s)
Diabetes Mellitus Experimental , Diabetes Mellitus Tipo 2 , Ratones , Animales , FN-kappa B/genética , FN-kappa B/metabolismo , Factor 88 de Diferenciación Mieloide/genética , Factor 88 de Diferenciación Mieloide/metabolismo , Receptor Toll-Like 4/genética , Receptor Toll-Like 4/metabolismo , Licopeno/metabolismo , Diabetes Mellitus Tipo 2/tratamiento farmacológico , Diabetes Mellitus Tipo 2/genética , Diabetes Mellitus Experimental/tratamiento farmacológico , Diabetes Mellitus Experimental/metabolismo , Inflamación/tratamiento farmacológico
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