Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 121
Filtrar
Más filtros

Bases de datos
Tipo del documento
Intervalo de año de publicación
1.
Plant J ; 117(3): 840-855, 2024 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-37938788

RESUMEN

Optimal grain-appearance quality is largely determined by grain size. To date, dozens of grain size-related genes have been identified. However, the regulatory mechanism of slender grain formation is not fully clear. We identified the OsSG34 gene by map-based cloning. A 9-bp deletion on 5'-untranslated region of OsSG34, which resulted in the expression difference between the wild-type and sg34 mutant, led to the slender grains and good transparency in sg34 mutant. OsSG34 as an α/ß fold triacylglycerol lipase affected the triglyceride content directly, and the components of cell wall indirectly, especially the lignin between the inner and outer lemmas in rice grains, which could affect the change in grain size by altering cell proliferation and expansion, while the change in starch content and starch granule arrangement in endosperm could affect the grain-appearance quality. Moreover, the OsERF71 was identified to directly bind to cis-element on the mutant site, thereby regulating the OsSG34 expression. Knockout of three OsSG34 homologous genes resulted in slender grains as well. The study demonstrated OsSG34, involved in lipid metabolism, affected grain size and quality. Our findings suggest that the OsSG34 gene could be used in rice breeding for high yield and good grain-appearance quality via marker-assisted selection and gene-editing approaches.


Asunto(s)
Oryza , Oryza/genética , Oryza/metabolismo , Proteínas de Plantas/genética , Proteínas de Plantas/metabolismo , Fitomejoramiento , Endospermo/genética , Endospermo/metabolismo , Grano Comestible/genética , Grano Comestible/metabolismo , Almidón/metabolismo
2.
Nutr Cancer ; 76(6): 499-512, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38655678

RESUMEN

OBJECTIVE: This study (CRD42023464989) aimed to explore the effects of pre-operation immunonutrition on safety and immune related factors in colorectal cancer patients undergoing surgery. METHODS: We systematically searched PubMed, Embase, and Wanfang databases to collect all clinical randomized controlled trials of the application of pre-operation immunonutrition for patients with colorectal cancer, published until July 2023. The primary outcomes were safety and immune related factors. RESULTS: A total of 16 studies were finally included. Preoperative immunonutrition could reduce the postoperative infection rate (risk ratio (RR) = 0.56, 95% confidence interval (CI): 0.36, 0.88; p = .01), and wound infection rate (RR = 0.44, 95% CI: 0.27, 0.70; p < .001) in patients with colorectal cancer. For length of stay (mean difference (MD) = -1.10, 95% CI: -2.70, 0.49; p = .17), it was similar between groups. Meanwhile, patients in the pre-operation immune nutrition group also had significantly increased infiltrative lymphocytes CD16+ (MD = 0.04, 95% CI: 0.02, 0.06; p < .001), and CD56+ (MD = 0.05, 95% CI: 0.03, 0.06; p < .001) cells in the tumor tissues, compared to the control group. CONCLUSION: Immunonutrition intervention has the potential to reduce postoperative infectious complications and improve tumor infiltrative lymphocytes in patients with colorectal cancer undergoing surgery.


Asunto(s)
Neoplasias Colorrectales , Linfocitos Infiltrantes de Tumor , Cuidados Preoperatorios , Ensayos Clínicos Controlados Aleatorios como Asunto , Humanos , Neoplasias Colorrectales/cirugía , Neoplasias Colorrectales/inmunología , Linfocitos Infiltrantes de Tumor/inmunología , Cuidados Preoperatorios/métodos , Recuento de Linfocitos , Complicaciones Posoperatorias/prevención & control , Dieta de Inmunonutrición
3.
Inorg Chem ; 63(2): 1175-1187, 2024 Jan 15.
Artículo en Inglés | MEDLINE | ID: mdl-38165740

RESUMEN

Solar water splitting has gained increasing attention in converting solar energy into green hydrogen energy. However, the construction of a photothermo-electro coupling field by harnessing light-induced heat and its enhancement on solar water splitting were seldom studied. Herein, we developed a full-spectrum responsive photoanode by depositing CdxZn1-xS onto the surface of hydrogenated TiO2 nanotube array (H-TNA), followed by modification with Ni2P. The resulting ternary photoanode exhibits a photocurrent density of 4.99 mA·cm-2 at 1.23 V vs. RHE with photoinduced heating, which is 11.9-fold higher than that of pristine TNA, with an optimal ABPE of 2.47%. The characterization results demonstrate that the ternary photoanode possesses superior full-spectrum absorption and efficient photogenerated carrier separation driven by the interface electric fields. Additionally, Ni2P reduces the hole injection barrier and increases surface active sites, accelerating the consumption of holes accumulating on the relatively unstable CdxZn1-xS to simultaneously improve the activity and stability of water splitting. Moreover, temperature-dependent measurements reveal that H-TNA and Ni2P significantly motivate the photothermal conversion to construct a photothermo-electro coupling field, optimizing photoelectric conversion and charge carrier-induced surface reactions. This work contributes to understanding the synergistic effect of the photothermo-electro coupling field on the photoelectrochemical water splitting.

4.
Lipids Health Dis ; 23(1): 202, 2024 Jun 27.
Artículo en Inglés | MEDLINE | ID: mdl-38937739

RESUMEN

BACKGROUND: Digestive system cancers represent a significant global health challenge and are attributed to a combination of demographic and lifestyle changes. Lipidomics has emerged as a pivotal area in cancer research, suggesting that alterations in lipid metabolism are closely linked to cancer development. However, the causal relationship between specific lipid profiles and digestive system cancer risk remains unclear. METHODS: Using a two-sample Mendelian randomization (MR) approach, we elucidated the causal relationships between lipidomic profiles and the risk of five types of digestive system cancer: stomach, liver, esophageal, pancreatic, and colorectal cancers. The aim of this study was to investigate the effect impact of developing lipid profiles on the risk of digestive system cancers utilizing data from public databases such as the GWAS Catalog and the UK Biobank. The inverse‒variance weighted (IVW) method and other strict MR methods were used to evaluate the potential causal links. In addition, we performed sensitivity analyses and reverse MR analyses to ensure the robustness of the results. RESULTS: Significant causal relationships were identified between certain lipidomic traits and the risk of developing digestive system cancers. Elevated sphingomyelin (d40:1) levels were associated with a reduced risk of developing gastric cancer (odds ratio (OR) = 0.68, P < 0.001), while elevated levels of phosphatidylcholine (16:1_20:4) increased the risk of developing esophageal cancer (OR = 1.31, P = 0.02). Conversely, phosphatidylcholine (18:2_0:0) had a protective effect against colorectal cancer (OR = 0.86, P = 0.036). The bidirectional analysis did not suggest reverse causality between cancer risk and lipid levels. Strict MR methods demonstrated the robustness of the above causal relationships. CONCLUSION: Our findings underscore the significant causal relationships between specific lipidomic traits and the risk of developing various digestive system cancers, highlighting the potential of lipid profiles in informing cancer prevention and treatment strategies. These results reinforce the value of MR in unraveling complex lipid-cancer interactions, offering new avenues for research and clinical application.


Asunto(s)
Neoplasias del Sistema Digestivo , Análisis de la Aleatorización Mendeliana , Humanos , Neoplasias del Sistema Digestivo/genética , Neoplasias del Sistema Digestivo/epidemiología , Neoplasias del Sistema Digestivo/sangre , Estudio de Asociación del Genoma Completo , Metabolismo de los Lípidos/genética , Lípidos/sangre , Lípidos/genética , Factores de Riesgo , Lipidómica , Predisposición Genética a la Enfermedad , Esfingomielinas/sangre , Neoplasias Esofágicas/genética , Neoplasias Esofágicas/epidemiología
5.
Am J Otolaryngol ; 45(1): 104061, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-37806281

RESUMEN

OBJECTIVE: Gastroesophageal reflux disease (GERD) may cause otitis media with effusion (OME). However, whether treating GERD can benefit patients with OME has not been well studied. METHODS: We systematically searched PubMed, Embase, Cochrane Library, and Wanfang databases. The search period was from the establishment of the databases until December 31, 2022. Clinical studies related to GERD treatment on the outcomes of OME were included. Two reviewers independently conducted literature screening and data extraction according to the inclusion and exclusion criteria. To evaluate the quality of the included studies, we used the NOS assessment tool and the RevMan 5.4. Subgroup analysis was conducted to reduce the risk of heterogeneity, and Egger and Begg funnel plots were used to evaluate publication bias. Meta-analysis was performed using Stata14.0 and Review Manager 5.4 software. RESULTS: Finally, 21,744 patients from 16 studies were included. The results showed that the rate of GERD in OME patients was 0.56 (95 % confidence interval (CI): 0.33, 0.79), while it was 0.04 (95 % CI: 0.03, 0.05) in the adult GERD population. The combined risk ratio (RR) of OME in patients with versus without GERD was 1.58 (95 % CI: 1.35, 1.85; p < 0.01). The efficacy rate of GERD treatment in OME patients was 0.59 (95 % CI: 0.44, 0.74), especially for those with chronic OME (0.64, 95 % CI: 0.36, 0.92). Compared to the control group, treatment with GERD improved the symptoms and efficacy of OME (OR = 1.65; 95 % CI: 0.95, 2.85; p > 0.05). The hearing loss cure rate was 0.70 (95 % CI: 0.57, 0.82). CONCLUSION: GERD has been suggested to be a high-risk factor for OME. Treatment of GERD can improve the symptoms of OME. However, further studies are required to verify these findings.


Asunto(s)
Sordera , Reflujo Gastroesofágico , Pérdida Auditiva , Otitis Media con Derrame , Otitis Media , Humanos , Otitis Media con Derrame/etiología , Pérdida Auditiva/prevención & control , Otitis Media/complicaciones , Reflujo Gastroesofágico/complicaciones
6.
Calcif Tissue Int ; 112(6): 704-715, 2023 06.
Artículo en Inglés | MEDLINE | ID: mdl-37032340

RESUMEN

Osteoporosis, an age-related metabolic bone disease, is mainly caused by an imbalance between osteoblast-mediated bone formation and osteoclast-mediated bone resorption. At present, there are many osteoporosis drugs that can promote bone formation or inhibit bone resorption. However, there were few therapeutic drugs that can simultaneously promote bone formation and inhibit bone resorption. Oridonin (ORI), a tetracyclic diterpenoid compound isolated from Rabdosia rubescens, has been proved to have anti-inflammatory, anti-tumor effects. However, little is known about the osteoprotective effect of oridonin. Thioacetamide (TAA) is a common organic compound with significant hepatotoxicity. Recent studies have found that there was a certain association between TAA and bone injury. In this work, we investigated the effect and mechanism of ORI on TAA-induced osteoclastogenesis and inhibition of osteoblast differentiation. The results showed that TAA could promote the osteoclastogenesis of RAW264.7 by promoting the MAPK/NF-κB pathway, and also promoted p65 nuclear translocation and activated intracellular ROS generation, and ORI can inhibit these effects to inhibit TAA-induced osteoclastogenesis. Moreover, ORI can also promote the osteogenic differentiation pathway and inhibit adipogenic differentiation of BMSCs to promote bone formation. In conclusion, our results revealed that ORI, as a potential therapeutic drug for osteoporosis, could protect against TAA-induced bone loss and TAA-inhibited bone formation.


Asunto(s)
Resorción Ósea , Osteoporosis , Humanos , Osteogénesis , FN-kappa B/metabolismo , Tioacetamida/metabolismo , Tioacetamida/farmacología , Tioacetamida/uso terapéutico , Subunidad alfa 1 del Factor de Unión al Sitio Principal/metabolismo , Osteoclastos/metabolismo , Resorción Ósea/metabolismo , Osteoporosis/inducido químicamente , Osteoporosis/tratamiento farmacológico , Diferenciación Celular , Ligando RANK/metabolismo
7.
Inorg Chem ; 62(49): 20096-20104, 2023 Dec 11.
Artículo en Inglés | MEDLINE | ID: mdl-38011516

RESUMEN

In our pursuit of promoting the green development of energetic materials and harnessing their functional benefits, we strive to address the inherent contradiction between energy and low sensitivity. In this regard, we have successfully constructed an azotriazole framework via environmentally friendly electrochemistry with a satisfactory yield of 62.3%. Through a simple ion-exchange process, we then synthesized nitrogen-rich salt derivatives of azotriazolone. These nitrogen-rich salts exhibit a wide range of nitrogen contents, ranging from 32.16 to 68.80%. Remarkably, crystallographic analysis of these green energy-containing salts reveals substantial advantages in terms of thermodynamic stability and low sensitivity. Experimental investigations have demonstrated a positive relationship between the nitrogen content and the pyrothermal performance of the azotriazolone derivatives. Of particular significance is compound 5, a triaminoguanidine salt, which exhibits an exceptionally high nitrogen content of 68.80%. It displays a detonation pressure of 28.2 GPa and a detonation velocity of 7939.4 m s-1. Moreover, the derivatives of azotriazolone salts demonstrate the formation of nitrogen-rich compounds, characterized by insensitive properties, attributed to the hydrogen-bonded network structures resulting from anion-cation interactions. With the exception of compound 5, which exhibits a friction sensitivity of 252 N, the remaining derivatives show a similar value of approximately 360 N. This suggests that azotriazolone serves as a promising material possessing both stabilizing properties and better detonation performance, thereby providing a favorable platform for the synthesis of novel compounds with advantageous properties.

8.
Nanotechnology ; 34(40)2023 Jul 19.
Artículo en Inglés | MEDLINE | ID: mdl-37406614

RESUMEN

Photocatalytic CO2reduction is considered to be an appealing way of alleviating environmental pollution and energy shortages simultaneously under mild condition. However, the activity is greatly limited by the poor separation of the photogenerated carriers. Ion doping is a feasible strategy to facilitate the charge transfer. In this work, Ni-doped Bi4O5I2photocatalyst is successfully fabricated using a one-pot hydrothermal method. A few doping levels appear in the energy band of Bi4O5I2after Ni doping, which are used as springboards for electrons transition, thus promoting photoexcited electrons and holes separation. As a consequence, a remarkably enhanced yield of CO and CH4(6.2 and 1.9µmol g-1h-1) is obtained over the optimized Bi4O5I2-Ni15, which is approximately 2.1 and 3.8 times superior to pure Bi4O5I2, respectively. This work may serve as a model for the subsequent research of Bi-based photocatalysts to implement high-performance CO2photoreduction.

9.
BMC Endocr Disord ; 23(1): 95, 2023 Apr 27.
Artículo en Inglés | MEDLINE | ID: mdl-37106342

RESUMEN

BACKGROUND: Thyroid cancer is the most common malignant tumor of the endocrine system. There have been some reports on kidney cancer with thyroid metastasis. However, kidney cancer has rarely been detected during thyroid cancer surgery. CASE PRESENTATION: We present a rare case of kidney cancer with thyroid metastasis, combined with thyroid carcinoma. A 66-year-old woman was admitted to our hospital in September 2021 due to enlarged left thyroid nodules for two years. The patient was diagnosed with a left thyroid nodule on physical examination in 2012. Extended radical resection of the thyroid cancer was performed. Intraoperatively, two thyroid lesions were identified. Thus, the patient was definitively diagnosed with kidney cancer with thyroid metastasis and papillary thyroid carcinoma. Furthermore, two metastatic nodules due to kidney cancer and one metastatic lymph node lesion due to thyroid cancer were found in the loose connective tissue adjacent to the thyroid. CONCLUSIONS: Kidney cancer with thyroid metastasis and thyroid carcinoma rarely co-occur, and it is difficult to identify the primary tumor. Although clinical examination methods are increasingly updated, the past medical history and physical examination are still very important.


Asunto(s)
Carcinoma Papilar , Neoplasias Renales , Neoplasias de la Tiroides , Nódulo Tiroideo , Femenino , Humanos , Anciano , Carcinoma Papilar/cirugía , Neoplasias de la Tiroides/patología , Neoplasias Renales/cirugía , Neoplasias Renales/patología , Neoplasias Renales/secundario , Cáncer Papilar Tiroideo/complicaciones
10.
Ecotoxicol Environ Saf ; 268: 115699, 2023 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-37979353

RESUMEN

This study investigated the physiological and molecular responses of rice genotype '9311' to Cd stress and the mitigating effects of silicon oxide nanoparticles (SiO NPs). Cd exposure severely hindered plant growth, chlorophyll content, photosynthesis, and Cd accumulation. However, SiO NPs supplementation, particularly the SiONP100 treatment, significantly alleviated Cd-induced toxicity, mitigating the adverse effects on plant growth while maintaining chlorophyll content and photosynthetic attributes. The SiONP100 treatment also reduced Cd accumulation, indicating a preference for Si uptake in genotype 9311. Complex interactions among Cd, Si, Mg, Ca, and K were uncovered, with fluctuations in MDA and H2O2 contents. Distinct morphological changes in stomatal aperture and mesophyll cell structures were observed, including changes in starch granules, grana thylakoids, and osmophilic plastoglobuli. Moreover, following SiONP100 supplementation, genotype 9311 increased peroxidase, superoxide dismutase, and catalase activities by 56%, 44%, and 53% in shoots and 62%, 49%, and 65% in roots, respectively, indicating a robust defense mechanism against Cd stress. Notably, OsNramp5, OsHMA3, OsSOD-Cu/Zn, OsCATA, OsCATB, and OsAPX1 showed significant expression after SiO NPs treatment, suggesting potential Cd translocation within rice tissues. Overall, SiO NPs supplementation holds promise for enhancing Cd tolerance in rice plants while maintaining essential physiological functions.


Asunto(s)
Nanopartículas , Oryza , Cadmio/metabolismo , Oryza/metabolismo , Peróxido de Hidrógeno/metabolismo , Antioxidantes/farmacología , Antioxidantes/metabolismo , Clorofila/metabolismo , Raíces de Plantas/metabolismo , Plantones
11.
J Pak Med Assoc ; 73(4): 896-900, 2023 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-37052010

RESUMEN

Coffin-Siris syndrome (CSS) is a rare congenital genetic syndrome, a multisystem disease related to congenital abnormalities, that manifests with abnormal features, causes repeated infections and is associated with developmental delays. Here, we report a newborn male with CSS from Baoding in the Hebei Province of China.


Asunto(s)
Anomalías Múltiples , Deformidades Congénitas de la Mano , Discapacidad Intelectual , Micrognatismo , Recién Nacido , Humanos , Masculino , Discapacidad Intelectual/diagnóstico , Discapacidad Intelectual/genética , Anomalías Múltiples/diagnóstico , Anomalías Múltiples/genética , Micrognatismo/diagnóstico , Micrognatismo/genética , Deformidades Congénitas de la Mano/diagnóstico , Deformidades Congénitas de la Mano/genética , Cuello
12.
Planta ; 256(5): 98, 2022 Oct 12.
Artículo en Inglés | MEDLINE | ID: mdl-36222916

RESUMEN

MAIN CONCLUSION: A G to T nucleotide substitution of OsTSG2 led to more tillers and smaller grains in rice by participating in phytohormone signal transduction and starch and sucrose metabolism. Rice is one of the most important food crops worldwide. Grain size and tiller number are the most important factors determining rice yield. The more-tiller and small-grain 2 (tsg2) mutant in rice, developed by ethyl methanesulfonate (EMS) mutagenesis, has smaller grains, more tillers, and a higher yield per plant relative to the wild-type (WT). Based on the genetic analysis, the tsg2 traits were conferred by a single recessive nuclear gene located on the long arm of chromosome 2. After fine-mapping the OsTSG2 locus, a G to T nucleotide substitution was identified, which resulted in an A to S mutation in a highly conserved domain of the growth-regulation factor protein. The single-strand conformation polymorphism (SSCP) marker was developed based on the SNP associated with the phenotypic segregation of traits. The functional complementation of OsTSG2 from the tsg2 mutant to the WT led to an increase in grain size and weight. The differentially expressed genes (DEGs) identified by RNA sequencing were involved in phytohormone signal transduction and starch and sucrose metabolism. Enzyme-linked immunosorbent assay (ELISA) analysis detected variation in the indole acetic acid (IAA) and jasmonic acid (JA) content in the tsg2 inflorescence, while the cellular organization, degree of chalkiness, gel consistency, amylose content, and alkaline spreading value were affected in the tsg2 grains. The findings elucidated the regulatory mechanisms of the tsg2 traits. This mutant could be used in marker-assisted breeding for high-yield and good-quality rice.


Asunto(s)
Oryza , Amilosa/metabolismo , Clonación Molecular , Grano Comestible/genética , Grano Comestible/metabolismo , Metanosulfonato de Etilo/metabolismo , Perfilación de la Expresión Génica , Nucleótidos/metabolismo , Oryza/genética , Oryza/metabolismo , Fitomejoramiento , Reguladores del Crecimiento de las Plantas/metabolismo , Almidón/metabolismo , Sacarosa/metabolismo
13.
Cancer Cell Int ; 22(1): 96, 2022 Feb 22.
Artículo en Inglés | MEDLINE | ID: mdl-35193596

RESUMEN

BACKGROUND: Cancer-associated fibroblasts (CAFs) aggravate gastric cancer (GC) development. METHODS: Combined with bioinformatics analysis and literature review, miR-223-3p had high expression in microvesicles (MVs) derived from GC CAFs, and it could modulate SORBS1. miR-223-3p and SORBS1 mRNA levels were assessed by qRT-PCR. The levels of CAFs markers, MVs markers, epithelial-mesenchymal transition (EMT)-associated proteins, and SORBS1 protein were assessed by western blot. MVs isolated from fibroblasts were observed by transmission electron microscopy. Combined with immunofluorescence and co-culture experiments, GC cells were determined to absorb MVs carrying miR-223-3p. Cell functions were measured using CCK-8, transwell, flow cytometry and colony formation assays. The binding of miR-223-3p and SORBS1 was determined by dual-luciferase assay and RNA immunoprecipitation. The cancer-promoting effect of MVs carrying miR-223-3p on experimental animals was verified in vivo by tumor-bearing experiment in nude mice. RESULTS: miR-223-3p was upregulated in the MVs secreted by GC CAFs and could be transmitted to GC cells through MVs, to boost the malignant progression of tumor cells. Additionally, it was also revealed that miR-223-3p targeted SORBS1 and accelerated progression along with EMT in GC. CONCLUSIONS: CAFs-derived MVs could carry miR-223-3p to GC cells to target SORBS1, thereby promoting the malignant progression of GC.

14.
Cancer Cell Int ; 22(1): 69, 2022 Feb 10.
Artículo en Inglés | MEDLINE | ID: mdl-35144613

RESUMEN

BACKGROUND: Gastric cancer (GC), the most commonly diagnosed cancer worldwide with poor 5-year survival rate in advanced stages. Although immune-related and survival-related biomarkers, which typically comprise aberrantly expressed long non-coding RNAs (lncRNAs) and genes, have been identified, there are no reports of immune-related lncRNA pair (IRLP) signatures for GC. METHODS: In this study, we acquired lncRNA expression profiles from The Cancer Genome Atlas (TCGA) and used the least absolute shrinkage and selection operator (LASSO) Cox proportional hazards model (iteration = 1000) to develop a IRLP prognostic signature. The area under curve (AUC) was used to assess the prognosis predictive power. The multivariate Cox regression analysis was performed to identify whether this signature was an independent prognostic factor. The immune cell infiltration analysis was performed between the two risk groups. Last, molecular experiments were performed to explore LINC01082 is involved in the development of GC. RESULTS: We acquired lncRNA expression profiles and used the LASSO Cox model to develop an 18-IRLP signature with a strong prognostic predictive power. The 5-year AUC values of the training, validation, and overall TCGA datasets were 0.77, 0.86, and 0.80, respectively. The different prognostic outcomes between the high- and low-risk groups were determined using our 18-IRLP signature. Moreover, our 18-IRLP signature was an independent prognostic factor as per the multivariate Cox regression analysis, and showed better prognostic evaluation than the traditional TNM staging system as well as other clinical features. We also found differences in cancer-associated fibroblast and macrophage M2 infiltration and the expression of PD-L1, CTLA4, LAG3, and HLA were also observed between the two risk groups (P < 0.05). Analysis of biological functions revealed that target genes of the lncRNAs in the IRLP signature were enriched in focal adhesion and regulation of actin cytoskeleton. Finally, as one of significant candidates of IRLP signature, overexpression of LINC01082 suppressed the invasion ability of GC cells as well as PD-L1 expression profiles. CONCLUSIONS: Our novel 18-IRLP signature provides new insights regarding immunological biomarkers, imparts a better understanding of the tumor immune microenvironment, and can be used for predicting prognosis and evaluating immune response in GC.

15.
Med Sci Monit ; 28: e935563, 2022 Apr 29.
Artículo en Inglés | MEDLINE | ID: mdl-35484828

RESUMEN

BACKGROUND This study aimed to compare a precision approach to intraoperative nerve block with traditional analgesia to reduce postoperative pain in 120 patients during thyroid surgery. The precision intraoperative technique used 0.3% ropivacaine to block the lower branch of the transverse cervical nerve and the inner branches of the supraclavicular nerve. MATERIAL AND METHODS A total of 120 patients were prospectively enrolled in this study. All patients were randomly and evenly divided into 3 groups. In the precision group, 0.3% ropivacaine was used through the wound during surgery. In the traditional group, a superficial cervical plexus nerve block was performed before surgery. Saline was injected in the control group. The valuation of postoperative pain was assessed using the visual analogue scale (VAS). RESULTS Two hours after surgery, the VAS scores in the precision group, traditional group, and control group were 1.4±0.5, 1.6±0.7, and 2.8±1.0 (P<0.001), respectively. Then, the pain improvement was more significant after 6 h, as the VAS scores in the precision, traditional, and control groups were 1.0±0.5, 1.2±0.6, and 2.6±1.1 (P<0.001), respectively. Twenty-four hours after surgery, the VAS scores in the precision, traditional, and control groups were 0.7±0.3, 0.6±0.4, and 1.9±1.1 (P<0.001), respectively. CONCLUSIONS At a single center, the use of a precision intraoperative ropivacaine nerve block significantly reduced postoperative pain when compared with traditional analgesia for patients undergoing thyroid surgery.


Asunto(s)
Analgesia , Bloqueo Nervioso , Amidas/uso terapéutico , Analgesia/métodos , Anestésicos Locales/uso terapéutico , Humanos , Bloqueo Nervioso/métodos , Dolor Postoperatorio/tratamiento farmacológico , Dolor Postoperatorio/prevención & control , Ropivacaína , Glándula Tiroides/cirugía
16.
Bioelectromagnetics ; 43(5): 297-308, 2022 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-35638237

RESUMEN

The endogenous electric field (EF) is widely observed among tissues. It is supposed to be an important environmental factor in tumor metastasis. To explore the role of endogenous EFs in tumor metastasis, the migration of mouse melanoma B16-F10 cells in directed current EFs (dcEFs) was investigated. The transcriptome of melanoma B16-F10 cells in response to EF stimulation was analyzed using RNA sequencing. The results demonstrated that the mouse melanoma B16-F10 cells migrated toward the cathode in applied dcEFs. Directional migration occurred in a voltage-dependent manner. Approximately 3000 upregulated and 2613 downregulated genes were identified under dcEF. Some genes correlated with cell migration, such as Serpine1, Ctgf, Fosb, and Fos, were upregulated. The signaling pathways involved in cell motility were significantly altered. Some genes, highly related to tumorigenesis, invasion, and metastasis, are upregulated in response to EF stimulation. Endogenous EFs may play a role in tumorigenesis and metastasis in vivo. © 2022 Bioelectromagnetics Society.


Asunto(s)
Melanoma Experimental , Melanoma , Animales , Carcinogénesis , Movimiento Celular , Melanoma Experimental/metabolismo , Ratones
17.
Int J Mol Sci ; 23(17)2022 Sep 05.
Artículo en Inglés | MEDLINE | ID: mdl-36077545

RESUMEN

Serine/arginine-rich (SR) proteins are a type of splicing factor. They play significant roles in constitutive and alternative pre-mRNA splicing, and are involved in post-splicing activities, such as mRNA nuclear export, nonsense-mediated mRNA decay, mRNA translation, and miRNA biogenesis. In plants, SR proteins function under a complex regulatory network by protein-protein and RNA-protein interactions between SR proteins, other splicing factors, other proteins, or even RNAs. The regulatory networks of SR proteins are complex-they are regulated by the SR proteins themselves, they are phosphorylated and dephosphorylated through interactions with kinase, and they participate in signal transduction pathways, whereby signaling cascades can link the splicing machinery to the exterior environment. In a complex network, SR proteins are involved in plant growth and development, signal transduction, responses to abiotic and biotic stresses, and metabolism. Here, I review the current status of research on plant SR proteins, construct a model of SR proteins function, and ask many questions about SR proteins in plants.


Asunto(s)
Arginina , Serina , Empalme Alternativo , Arginina/metabolismo , Proteínas de Plantas/genética , Proteínas de Plantas/metabolismo , Precursores del ARN/genética , Empalme del ARN , Proteínas de Unión al ARN/genética , Proteínas de Unión al ARN/metabolismo , Serina/metabolismo , Factores de Empalme Serina-Arginina/genética , Factores de Empalme Serina-Arginina/metabolismo
18.
Molecules ; 27(11)2022 May 25.
Artículo en Inglés | MEDLINE | ID: mdl-35684345

RESUMEN

Transition metal-substituted polyoxometalates (POMs) were filled into a metal-organic framework (MOF) to construct a series of POM@MOF composites (PMo12O40@MIL-101, PMo11VO40@MIL-101, PMo10V2O40@MIL-101). The composite materials possess ultra-high adsorption ability, especially for PMo10V2O40@MIL-101, with an adsorption capacity of 912.5 mg·g-1 for cationic antibiotic tetracycline in wastewater, much higher than that of isolated MIL-101(Fe) and the commonly used adsorption materials, such as activated carbon and graphene oxide. In particular, they can be used as efficient photocatalysts for the photodegradation of antibiotics under visible light irradiation. The complete photodegradation of the adsorbed species can induce the facile reusability of these composites for multiple cycles. This work opens an avenue to introduce POMs into an MOF matrix for the simultaneous adsorption and photodegradation of antibiotics.


Asunto(s)
Contaminantes Ambientales , Estructuras Metalorgánicas , Contaminantes Químicos del Agua , Adsorción , Antibacterianos , Luz
19.
Zhongguo Zhong Yao Za Zhi ; 47(21): 5882-5889, 2022 Nov.
Artículo en Zh | MEDLINE | ID: mdl-36472007

RESUMEN

This study aims to investigate the therapeutic effect of icariin(ICA) on thioacetamide(TAA)-induced femoral osteolysis in rats. RAW264.7 cells were treated with TAA and ICA. Cell counting kit-8(CCK-8) assay was used to detect cell proliferation, and tartrate-resistant acid phosphatase(TRAP) staining to examine the formation of osteoclasts. The expression of TRAP, cathepsin K, c-FOS, and NFATc1 in RAW264.7 cells was determined by Western blot and immunofluorescence method. Thirty-two SD rats were randomized into the control group, TAA group(intraperitoneal injection of TAA at 300 mg·kg~(-1)), ICA group(gavage of ICA at 600 mg·kg~(-1)) and TAA + ICA group(intraperitoneal injection of TAA at 300 mg·kg~(-1) and gavage of ICA at 600 mg·kg~(-1)). Administration was performed every other day for 6 weeks. Body weight and length of femur were recorded at execution. Pathological injury and osteoclast differentiation of femur were observed based on hematoxylin-eosin(HE) staining and TRAP staining, and the changes of bone metabolism-related indexes alkaline phosphatase(ALP), calcium(Ca), phosphorus(P), magnesium(Mg), and cross-linked N-telopeptide of type Ⅰ collagen(NTX-Ⅰ) in serum were detected. Three-point bending test and micro-CT were applied to evaluate the quality of femur, and Western blot to detect the levels of osteoclast-related proteins TRAP, cathepsin K, RANK, RANKL, p38, p-p38, ERK, p-ERK, JNK, p-JNK, c-Fos, and NFATc1. The results showed ICA could inhibit TAA-induced production of TRAP-positive cells, the expression of osteoclast-related proteins, and nuclear translocation of NFATc1. ICA alleviated the weight loss, reduction of femur length, and growth inhibition induced by TAA in SD rats. ICA ameliorated the decline of femur elastic modulus caused by TAA and significantly restored trabecular bone mineral density(BMD), trabecular pattern factor(Tb.Pf), trabecular number(Tb.N), trabecular thickness(Tb.Th), and structure model index(SMI), thus improving bone structure. Western blot results showed ICA suppressed femoral osteoclast differentiation induced by TAA through RANKL-p38/ERK-NFATc1 signaling pathway. ICA inhibits osteoclast differentiation and prevents TAA-induced osteolysis by down-regulating RANKL-p38/ERK-NFAT signaling pathway.


Asunto(s)
Resorción Ósea , Osteólisis , Ratas , Animales , Osteoclastos , Catepsina K/genética , Catepsina K/metabolismo , Catepsina K/farmacología , Tioacetamida/metabolismo , Tioacetamida/farmacología , Resorción Ósea/metabolismo , Resorción Ósea/patología , Osteólisis/metabolismo , Osteólisis/patología , Diferenciación Celular , Ratas Sprague-Dawley , Factores de Transcripción NFATC/genética , Factores de Transcripción NFATC/metabolismo
20.
BMC Cancer ; 21(1): 806, 2021 Jul 13.
Artículo en Inglés | MEDLINE | ID: mdl-34256714

RESUMEN

BACKGROUND: The incidence rate of adenocarcinoma of the oesophagogastric junction (AEG) has significantly increased over the past decades, with a steady increase in morbidity. The aim of this study was to explore a variety of clinical factors to judge the survival outcomes of AEG patients. METHODS: We first obtained the clinical data of AEG patients from the Surveillance, Epidemiology, and End Results Program (SEER) database. Univariate and least absolute shrinkage and selection operator (LASSO) regression models were used to build a risk score system. Patient survival was analysed using the Kaplan-Meier method and the log-rank test. The specificity and sensitivity of the risk score were determined by receiver operating characteristic (ROC) curves. Finally, the internal validation set from the SEER database and external validation sets from our center were used to validate the prognostic power of this model. RESULTS: We identified a risk score system consisting of six clinical features that can be a good predictor of AEG patient survival. Patients with high risk scores had a significantly worse prognosis than those with low risk scores (log-rank test, P-value < 0.0001). Furthermore, the areas under ROC for 3-year and 5-year survival were 0.74 and 0.75, respectively. We also found that the benefits of chemotherapy and radiotherapy were limited to stage III/IV AEG patients in the high-risk group. Using the validation sets, our novel risk score system was proven to have strong prognostic value for AEG patients. CONCLUSIONS: Our results may provide new insights into the prognostic evaluation of AEG.


Asunto(s)
Adenocarcinoma/mortalidad , Bases de Datos Factuales/normas , Programa de VERF/normas , Adenocarcinoma/patología , Anciano , Unión Esofagogástrica/patología , Humanos , Incidencia , Masculino , Persona de Mediana Edad , Pronóstico , Factores de Riesgo
SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA