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1.
Sci Rep ; 14(1): 23376, 2024 10 08.
Artículo en Inglés | MEDLINE | ID: mdl-39379476

RESUMEN

Hutchinson-Gilfor progeria syndrome (HGPS) is caused by a mutation in Lamin A resulting in the production of a protein called progerin. The accumulation of progerin induces inflammation, cellular senescence and activation of the P53 pathway. In this study, through public dataset analysis, we identified Syntaxin Binding Protein 5 (STXBP5) as an influencing factor of progerin expression. STXBP5 overexpression accelerated the onset of senescence, while STXBP5 deletion suppressed progerin expression, delayed senility, and decreased the expression of senescence-related factors. STXBP5 and progerin have synergistic effects and a protein-protein interaction. Through bioinformatics analysis, we found that STXBP5 affects ageing-related signalling pathways such as the mitogen-activated protein kinase (MAPK) pathway, the hippo pathway and the interleukin 17 (IL17) signalling pathway in progerin-expressing cells. In addition, STXBP5 overexpression induced changes in transposable elements (TEs), such as the human endogenous retrovirus H internal coding sequence (HERVH-int) changes. Our protein coimmunoprecipitation (Co-IP) results indicated that STXBP5 bound directly to progerin. Therefore, decreasing STXBP5 expression is a potential new therapeutic strategy for treating ageing-related phenotypes in patients with HGPS.


Asunto(s)
Senescencia Celular , Lamina Tipo A , Humanos , Lamina Tipo A/metabolismo , Lamina Tipo A/genética , Animales , Senescencia Celular/genética , Proteínas Qa-SNARE/metabolismo , Proteínas Qa-SNARE/genética , Progeria/genética , Progeria/metabolismo , Progeria/patología , Transducción de Señal , Ratones , Regulación de la Expresión Génica , Células HEK293 , Unión Proteica
2.
J Nutr Biochem ; 134: 109766, 2024 Sep 12.
Artículo en Inglés | MEDLINE | ID: mdl-39260735

RESUMEN

Long-term dysfunction of glucose metabolism causes cardiac dysfunction called diabetic cardiomyopathy (DCM). To investigate the effect and underlying mechanism of RS on the process of DCM, mouse models induced by a high-fat diet (HFD) and streptozotocin (STZ) were fed RS (2 g/kg/day) and vehicle treatment (by oral gavage) for 14 weeks. Various analyses, including qRT-PCR, western blot, immunofluorescence staining, histology staining, cardiac function, and diversity detection of intestinal microbiota were performed. RS intervention could directly improve myocardial fibrosis, hypertrophy, apoptosis, and cardiac insufficiency in DCM. These beneficial effects may be achieved by elevating the expression of IGF-1, activating the ERK phosphorylation. Furthermore, by carrying out nano LC-MS/MS analyses and 16S rDNA sequencing, we found RS might primarily affect proteins in the cytoplasm involved in post-translational modification, protein conversion, and signal transduction mechanisms. RS altered intestinal microbiota and improved intestinal mucosal permeability towards a favorable direction in DCM. This multidimensional assessment of RS suggests that might be a promising approach towards the treatment of DCM.

3.
Foods ; 13(18)2024 Sep 15.
Artículo en Inglés | MEDLINE | ID: mdl-39335848

RESUMEN

The use of Generally Recognized as Safe (GRAS)-grade microbial cell factories to produce recombinant protein-based nutritional products is a promising trend in developing food and health supplements. In this study, GRAS-grade Kluyveromyces marxianus was employed to express recombinant human heavy-chain ferritin (rhFTH), achieving a yield of 11 g/L in a 5 L fermenter, marking the highest yield reported for ferritin nanoparticle proteins to our knowledge. The rhFTH formed 12 nm spherical nanocages capable of ferroxidase activity, which involves converting Fe2+ to Fe3+ for storage. The rhFTH-containing yeast cell lysates promoted cytokine secretion (tumor necrosis factor-α (TNF-α), interleukin-6 (IL-6), and -1ß (IL-1ß)) and enhanced locomotion, pharyngeal pumping frequency, egg-laying capacity, and lifespan under heat and oxidative stress in the RAW264.7 mouse cell line and the C. elegans model, respectively, whereas yeast cell lysate alone had no such effects. These findings suggest that rhFTH boosts immunity, holding promise for developing ferritin-based food and nutritional products and suggesting its adjuvant potential for clinical applications of ferritin-based nanomedicine. The high-yield production of ferritin nanoparticles in K. marxianus offers a valuable source of ferritin for the development of ferritin-based products.

4.
Langmuir ; 40(37): 19689-19700, 2024 Sep 17.
Artículo en Inglés | MEDLINE | ID: mdl-39235286

RESUMEN

Matrine (MT) is a kind of alkaloid extracted from Sophora and is a promising substitute for chemical nematicides and botanical pesticides. The present study utilized sodium alginate (SA), zeolite imidazole salt skeleton (ZIF), and MT as raw materials to prepare a pH-response-release nematicide through the electrostatic spray technique. Zinc metal-organic framework (ZIF-8) was initially synthesized, followed by the successful loading of MT. Subsequently, the electrostatic spray process was employed to encapsulate it in SA, resulting in the formation of MT/ZIF-8@SA microcapsules. The efficiency of encapsulation and drug loadings can reach 79.93 and 26.83%, respectively. Soybean cyst nematode (SCN) is one of the important pests that harm crops; acetic acid produced by plant roots and CO2 produced by root respiration causing a decrease in the pH of the surrounding environment, which is most attractive to the SCN when the pH is between 4.5 and 5.4. MT/ZIF-8@SA releases the loaded MT in response to acetic acid produced by roots and acidic oxides produced by root respiration. The rate of release was 37.67% higher at pH 5.25 compared with pH 8.60. The control efficiency can reach 89.08% under greenhouse conditions. The above results demonstrate that the prepared MT/ZIF-8@SA not only exhibited excellent efficacy but also demonstrated a pH-responsive release of the nematicide.


Asunto(s)
Alginatos , Alcaloides , Cápsulas , Glycine max , Matrinas , Quinolizinas , Electricidad Estática , Alginatos/química , Alcaloides/química , Alcaloides/farmacología , Animales , Concentración de Iones de Hidrógeno , Quinolizinas/química , Glycine max/química , Glycine max/parasitología , Cápsulas/química , Estructuras Metalorgánicas/química , Estructuras Metalorgánicas/farmacología , Antinematodos/química , Antinematodos/farmacología , Nematodos/efectos de los fármacos , Liberación de Fármacos , Ácido Glucurónico/química , Ácidos Hexurónicos/química
5.
Nurs Crit Care ; 2024 Sep 22.
Artículo en Inglés | MEDLINE | ID: mdl-39308137

RESUMEN

BACKGROUND: Hyponatraemia is a prevalent electrolyte disturbance observed in critically ill patients. The rapid correction of low plasma sodium levels by continuous renal replacement therapy (CRRT) carries the risk of developing osmotic demyelination syndrome (ODS), which can be prevented by implementing an individualized CRRT method. AIM: This study aims to introduce a CRRT protocol for the safe and gradual correction of severe hyponatraemia. STUDY DESIGN: This retrospective case series study was conducted in an intensive care unit (ICU). All four patients with severe hyponatraemia (<125 mmol/L) and renal failure between October 1, 2022, and September 30, 2023, were treated by CRRT with sterile water and regional citrate anticoagulation (RCA). Data on patient demographics, laboratory biochemical parameters, urine outputs and CRRT-related adverse events were collected. Laboratory parameters and urine outputs were compared by paired t-tests before and after CRRT. RESULTS: After CRRT, sodium levels were significantly increased (112.7 ± 6.7 vs. 141.9 ± 2.8 mmol/L, p = .005). Abnormal urine outputs, potassium, creatinine and bicarbonate were corrected (p for all <.05). Safe and gradual correction of hyponatraemia and internal environmental dysregulation was achieved in all patients without any complications related to CRRT, particularly ODS. CONCLUSION: It is a novel and simple strategy to correct severe hyponatraemia effectively while ensuring the safety of patients that can be easily implemented by experienced nurse staff. RELEVANCE TO CLINICAL PRACTICE: The sterile water-based protocol for postfilter dilution is safe to correct severe hyponatraemia with RCA and can be easily performed by experienced critical care nurses according to the precalculated formula. CRRT-trained, experienced ICU nurses are competent to initiate and adjust sterile water infusion discretely to prevent overcorrection of hyponatraemia.

6.
Transl Psychiatry ; 14(1): 356, 2024 Sep 04.
Artículo en Inglés | MEDLINE | ID: mdl-39231933

RESUMEN

In this study, we analyzed pooled data from two prospective population-based cohorts-the Health Retirement Study (HRS) and the English Longitudinal Study of Ageing (ELSA)-to explore the association between trajectories of depressive symptoms and the risk of cardiac events. Depressive symptoms were assessed using the 8-item CES-D scale and categorized into somatic and cognitive-affective subtypes. Trajectories were tracked for four surveys from baseline. Heart disease was identified based on self-reported physician-diagnosed conditions. Hazard ratios and 95% confidence intervals were calculated with Cox proportional risk models that adjusted for potential confounders. In total, 17,787 subjects (59.7% female, median age 63 years) were enrolled at baseline. During a 10-year follow-up, 2409 cases of heart disease were identified. Participants with fluctuating (HR = 1.13, 95% CI: 1.06-1.20), increasing (HR = 1.43, 95% CI: 1.25-1.64), and consistently high (HR = 1.64, 95% CI: 1.45-1.84) depressive symptom trajectories exhibited an increased risk of heart disease compared to those with consistently low depressive symptoms, while a decreasing (HR = 1.07, 95% CI: 0.96-1.19) depressive symptom trajectory did not significantly affect the risk of heart disease. Moreover, the association between heart disease and somatic depressive symptoms was found to be stronger than with cognitive-affective symptoms. These findings suggest a significant link between depressive symptom trajectories and heart disease, with particular emphasis on stronger associations with somatic symptoms. It is recommended that the identification and management of depressive symptoms be incorporated into heart disease prevention strategies.


Asunto(s)
Depresión , Humanos , Femenino , Masculino , Persona de Mediana Edad , Depresión/epidemiología , Anciano , Estudios Longitudinales , Estudios Prospectivos , Cardiopatías/epidemiología , Cardiopatías/psicología , Factores de Riesgo , Modelos de Riesgos Proporcionales
7.
Mater Today Bio ; 28: 101181, 2024 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-39221217

RESUMEN

Plasmid-mediated conjugative transfer of antibiotic resistance genes (ARGs) within the human and animal intestine represents a substantial global health concern. linoleic acid (LA) has shown promise in inhibiting conjugation in vitro, but its in vivo effectiveness in the mammalian intestinal tract is constrained by challenges in efficiently reaching the target site. Recent advancements have led to the development of waterborne polyurethane nanoparticles for improved drug delivery. In this study, we synthesized four waterborne polyurethane nanoparticles incorporating LA (WPU@LA) using primary raw materials, including N-methyldiethanolamine, 2,2'-(piperazine-1,4-diyl) diethanol, isophorone diisocyanate, castor oil, and acetic acid. These nanoparticles, identified as WPU0.89@LA, WPU0.99@LA, WPU1.09@LA, and WPU1.19@LA, underwent assessment for their pH-responsive release property and biocompatibility. Among these, WPU0.99@LA displayed superior pH-responsive release properties and biocompatibility towards Caco-2 and IPEC-J2 cells. In a mouse model, a dosage of 10 mg/kg/day WPU0.99@LA effectively reduced the conjugation of IncX4 plasmids carrying the mobile colistin resistance gene (mcr-1) by more than 45.1-fold. In vivo toxicity assessment demonstrated that 10 mg/kg/day WPU0.99@LA maintains desirable biosafety and effectively preserves gut microbiota homeostasis. In conclusion, our study provides crucial proof-of-concept support, demonstrating that WPU0.99@LA holds significant potential in controlling the spread of antibiotic resistance within the mammalian intestine.

8.
Biotechnol J ; 19(8): e2400347, 2024 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-39167556

RESUMEN

Plant-derived ß-glucosidases hold promise for glycoside biosynthesis via reverse hydrolysis because of their excellent glucose tolerance and robust stability. However, their poor heterologous expression hinders the development of large-scale production and applications. In this study, we overexpressed apple seed ß-glucosidase (ASG II) in Komagataella phaffii and enhanced its production from 289 to 4322 U L-1 through expression cassette engineering and protein engineering. Upon scaling up to a 5-L high cell-density fermentation, the resultant mutant ASG IIV80A achieved a maximum protein concentration and activity in the secreted supernatant of 2.3 g L-1 and 41.4 kU L-1, respectively. The preparative biosynthesis of salidroside by ASG IIV80A exhibited a high space-time yield of 33.1 g L-1 d-1, which is so far the highest level by plant-derived ß-glucosidase. Our work addresses the long-standing challenge of the heterologous expression of plant-derived ß-glucosidase in microorganisms and presents new avenues for the efficient production of salidroside and other natural glycosides.


Asunto(s)
Glucósidos , Malus , Fenoles , Semillas , beta-Glucosidasa , Fenoles/metabolismo , beta-Glucosidasa/genética , beta-Glucosidasa/metabolismo , Glucósidos/biosíntesis , Glucósidos/metabolismo , Glucósidos/química , Semillas/genética , Semillas/metabolismo , Saccharomycetales/genética , Saccharomycetales/metabolismo , Saccharomycetales/enzimología , Fermentación , Proteínas de Plantas/genética , Proteínas de Plantas/metabolismo , Ingeniería de Proteínas/métodos
9.
Nat Med ; 30(8): 2295-2302, 2024 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-39095596

RESUMEN

Previous findings have indicated the potential benefits of the Chinese traditional medicine Qiliqiangxin (QLQX) in heart failure. Here we performed a double-blind, randomized controlled trial to evaluate the efficacy and safety of QLQX in patients with heart failure and reduced ejection fraction (HFrEF). This multicenter trial, conducted in 133 hospitals in China, enrolled 3,110 patients with HFrEF with NT-proBNP levels of ≥450 pg ml-1 and left ventricular ejection fraction of ≤40%. Participants were randomized to receive either QLQX capsules or placebo (four capsules three times daily) alongside standard heart failure therapy. The trial met its primary outcome, which was a composite of hospitalization for heart failure and cardiovascular death: over a median follow-up of 18.3 months, the primary outcome occurred in 389 patients (25.02%) in the QLQX group and 467 patients (30.03%) in the placebo group (hazard ratio (HR), 0.78; 95% confidence interval (CI), 0.68-0.90; P < 0.001). In an analysis of secondary outcomes, the QLQX group showed reductions in both hospitalization for heart failure (15.63% versus 19.16%; HR, 0.76; 95% CI, 0.64-0.90; P = 0.002) and cardiovascular death (13.31% versus 15.95%; HR, 0.83; 95% CI, 0.68-0.996; P = 0.045) compared to the placebo group. All-cause mortality did not differ significantly between the two groups (HR, 0.84; 95% CI, 0.70-1.01; P = 0.058) and adverse events were also comparable between the groups. The results of this trial indicate that QLQX may improve clinical outcomes in patients with HFrEF when added to conventional therapy. ChiCTR registration: ChiCTR1900021929 .


Asunto(s)
Medicamentos Herbarios Chinos , Insuficiencia Cardíaca , Volumen Sistólico , Humanos , Insuficiencia Cardíaca/tratamiento farmacológico , Insuficiencia Cardíaca/mortalidad , Insuficiencia Cardíaca/fisiopatología , Medicamentos Herbarios Chinos/uso terapéutico , Medicamentos Herbarios Chinos/efectos adversos , Medicamentos Herbarios Chinos/administración & dosificación , Masculino , Femenino , Método Doble Ciego , Volumen Sistólico/efectos de los fármacos , Persona de Mediana Edad , Anciano , Medicina Tradicional China , Resultado del Tratamiento , Hospitalización , Péptido Natriurético Encefálico/sangre , Fragmentos de Péptidos/sangre
10.
Front Microbiol ; 15: 1366336, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-39113837

RESUMEN

Streptomycetes are well-known antibiotic producers possessing in their genomes numerous silent biosynthetic pathways that might direct the biosynthesis of novel bio-active specialized metabolites. It is thus of great interest to find ways to enhance the expression of these pathways to discover most needed novel antibiotics. In this study, we demonstrated that the over-expression of acetyltransferase SCO0988 up-regulated the production of specialized metabolites and accelerated sporulation of the weak antibiotic producer, Streptomyces lividans and that the deletion of this gene had opposite effects in the strong antibiotic producer, Streptomyces coelicolor. The comparative analysis of the acetylome of a S. lividans strain over-expressing sco0988 with that of the original strain revealed that SCO0988 acetylates a broad range of proteins of various pathways including BldKB/SCO5113, the extracellular solute-binding protein of an ABC-transporter involved in the up-take of a signal oligopeptide of the quorum sensing pathway. The up-take of this oligopeptide triggers the "bald cascade" that regulates positively specialized metabolism, aerial mycelium formation and sporulation in S. coelicolor. Interestingly, BldKB/SCO5113 was over-acetylated on four Lysine residues, including Lys425, upon SCO0988 over-expression. The bald phenotype of a bldKB mutant could be complemented by native bldKB but not by variant of bldKB in which the Lys425 was replaced by arginine, an amino acid that could not be acetylated or by glutamine, an amino acid that is expected to mimic acetylated lysine. Our study demonstrated that Lys425 was a critical residue for BldKB function but was inconclusive concerning the impact of acetylation of Lys425 on BldKB function.

11.
Int J Occup Saf Ergon ; : 1-10, 2024 Jul 20.
Artículo en Inglés | MEDLINE | ID: mdl-39031045

RESUMEN

Developing new fabric systems with excellent thermal protective performance is essential to protecting workers from hot pressurized steam hazards. In this study, a laminated fabric was selected and a weft-knitted spacer fabric was developed for steam protective fabric systems. Effects of the configuration of the fabric systems and heat setting of spacer fabric on performances were investigated. The results demonstrate that the developed spacer fabric significantly prolonged skin burn times compared with controls. However, heat setting of spacer fabric had a negligible effect on improving thermal protective performance. Spacer fabric provided superior thermal protection while ensuring thermal comfort and enhancing air permeability, especially for spacer fabric after heat setting. Generally, a fabric system composed of a laminated outer shell and a spacer fabric is the best choice for steam protective clothing. The findings help develop a novel thermal liner to decrease energy transfer and provide better protection from pressurized steam.

12.
J Agric Food Chem ; 72(32): 18078-18088, 2024 Aug 14.
Artículo en Inglés | MEDLINE | ID: mdl-39078882

RESUMEN

Mogrosides, which have various pharmacological activities, are mainly extracted from Siraitia grosvenorii (Luo Han Guo) and are widely used as natural zero-calorie sweeteners. Unfortunately, the difficult cultivation and long maturation time of Luo Han Guo have contributed to a shortage of mogrosides. To overcome this obstacle, we developed a highly efficient biosynthetic method using engineered Escherichia coli to synthesize sweet mogrosides from bitter mogrosides. Three UDP-glycosyltransferase (UGT) genes with primary/branched glycosylation catalytic activity at the C3/C24 sites of mogrosides were screened and tested. Mutant M3, which could catalyze the glycosylation of nine types of mogrosides, was obtained through enhanced catalytic activity. This improvement in ß-(1,6)-glycosidic bond formation was achieved through single nucleotide polymorphisms and direct evolution, guided by 3D structural analysis. A new multienzyme system combining three UGTs and UDP-glucose (UDPG) regeneration was developed to avoid the use of expensive UDPG. Finally, the content of sweet mogrosides in the immature Luo Han Guo extract increased significantly from 57% to 95%. This study not only established a new multienzyme system for the highly efficient production of sweet mogrosides from immature Luo Han Guo but also provided a guideline for the high-value utilization of rich bitter mogrosides from agricultural waste and residues.


Asunto(s)
Cucurbitaceae , Escherichia coli , Glicosiltransferasas , Edulcorantes , Escherichia coli/genética , Escherichia coli/metabolismo , Glicosilación , Edulcorantes/metabolismo , Edulcorantes/química , Glicosiltransferasas/genética , Glicosiltransferasas/metabolismo , Cucurbitaceae/metabolismo , Cucurbitaceae/genética , Ingeniería Metabólica , Proteínas de Plantas/genética , Proteínas de Plantas/metabolismo , Proteínas de Plantas/química , Triterpenos/metabolismo , Triterpenos/química
13.
Clin Chem Lab Med ; 2024 Jul 19.
Artículo en Inglés | MEDLINE | ID: mdl-39022805

RESUMEN

OBJECTIVES: Regions of homozygosity (ROH) could implicate uniparental disomy (UPD) on specific chromosomes associated with imprinting disorders. Though the algorithms for ROH detection in exome sequencing (ES) have been developed, optimal reporting thresholds and when to pursue confirmatory UPD testing for imprinting disorders remain in ambiguity. This study used a data-driven approach to assess optimal reporting thresholds of ROH in clinical practice. METHODS: ROH analysis was performed using Automap in a retrospective cohort of 8,219 patients and a prospective cohort of 1,964 patients with ES data. Cases with ROH on imprinting-disorders related chromosomes were selected for additional methylation-specific confirmatory testing. The diagnostic yield, the ROH pattern of eventually diagnosed cases and optimal thresholds for confirmatory testing were analyzed. RESULTS: In the retrospective analysis, 15 true UPD cases of imprinting disorders were confirmed among 51 suspected cases by ROH detection. Pattern of ROH differed between confirmed UPD and non-UPD cases. Maximized yield and minimized false discovery rate of confirmatory UPD testing was achieved at the thresholds of >20 Mb or >25 % chromosomal coverage for interstitial ROH, and >5 Mb for terminal ROH. Current recommendation by ACMG was nearly optimal, though refined thresholds as proposed in this study could reduce the workload by 31 % without losing any true UPD diagnosis. Our refined thresholds remained optimal after independent evaluation in a prospective cohort. CONCLUSIONS: ROH identified in ES could implicate the presence of clinically relevant UPD. This study recommended size and coverage thresholds for confirmatory UPD testing after ROH detection in ES, contributing to the development of evidence-based reporting guidelines.

14.
Front Immunol ; 15: 1403070, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-39015575

RESUMEN

Background: The cGAS-STING axis-mediated type I interferon pathway is a crucial strategy for host defense against DNA virus infection. Numerous evasion strategies developed by the pseudorabies virus (PRV) counteract host antiviral immunity. To what extent PRV-encoded proteins evade the cGAS-STING signaling pathway is unknown. Methods: Using US2 stably expressing cell lines and US2-deficient PRV model, we revealed that the PRV tegument protein US2 reduces STING protein stability and downregulates STING-mediated antiviral signaling. Results: To promote K48-linked ubiquitination and STING degradation, US2 interacts with the LBD structural domain of STING and recruits the E3 ligase TRIM21. TRIM21 deficiency consistently strengthens the host antiviral immune response brought on by PRV infection. Additionally, US2-deficient PRV is less harmful in mice. Conclusions: Our study implies that PRV US2 inhibits IFN signaling by a new mechanism that selectively targets STING while successfully evading the host antiviral response. As a result, the present study reveals a novel strategy by which PRV evades host defense and offers explanations for why the Bartha-K61 classical vaccine strain failed to offer effective defense against PRV variant strains in China, indicating that US2 may be a key target for developing gene-deficient PRV vaccines.


Asunto(s)
Herpesvirus Suido 1 , Inmunidad Innata , Seudorrabia , Transducción de Señal , Proteínas del Envoltorio Viral , Animales , Humanos , Ratones , Células HEK293 , Herpesvirus Suido 1/inmunología , Herpesvirus Suido 1/fisiología , Interacciones Huésped-Patógeno/inmunología , Evasión Inmune , Proteínas de la Membrana/metabolismo , Proteínas de la Membrana/inmunología , Proteínas de la Membrana/genética , Nucleotidiltransferasas/metabolismo , Nucleotidiltransferasas/genética , Nucleotidiltransferasas/inmunología , Seudorrabia/inmunología , Seudorrabia/virología , Ribonucleoproteínas/inmunología , Ribonucleoproteínas/metabolismo , Ubiquitinación , Proteínas del Envoltorio Viral/metabolismo
15.
Int J Cardiol ; 411: 132268, 2024 Sep 15.
Artículo en Inglés | MEDLINE | ID: mdl-38880418

RESUMEN

BACKGROUND: Acute myocardial infarction (AMI) is a serious condition with high mortality rates. Early risk stratification is of significant importance to assess the prognosis. Insulin-like growth factor-binding protein 5 (IGFBP5) levels in AMI patients and its potential as a prognosis biomarker were unclear. OBJECTIVE: To investigate serum IGFBP5 levels in AMI and its prognostic value for short-term major adverse cardiovascular events (MACE). METHODS: We collected serum IGFBP5 levels from 200 patients with new-onset AMI and 71 coronary heart disease (CAD) patients without AMI. Linear regression was used to analyze the relationship between IGFBP5 and baseline variables. AMI patients were followed up, and the risk of major adverse cardiovascular events (MACE) was assessed using Kaplan-Meier curve, multivariate Cox models and restricted cubic spline (RCS) analysis. RESULTS: During a median follow-up of 217 days, 40 patients developed MACE. Serum IGFBP5 was associated with serum cardiac troponin T (cTnT) and C-reactive protein (CRP) (P = 0.013 and P = 0.013). In multivariable survival analyses, higher IGFBP5 was associated with an increased risk of MACE [HR = 1.183, 95%CI (1.104, 1.268), P < 0.001)]. There was a positive and linear association between IGFBP5 levels and the occurrence of MACE (P for nonlinearity = 0.283). The positive association between IGFBP5 and MACE risk consist across subgroups characterized by demographics and comorbidities. CONCLUSION: Serum IGFBP5 was highly expressed in patients with AMI and positively associated with the short-term risk of MACE. Circulating IGFBP5 may be a diagnostic and prognostic indicator for AMI, and further studies with larger sample and longer follow-up are warranted.


Asunto(s)
Biomarcadores , Proteína 5 de Unión a Factor de Crecimiento Similar a la Insulina , Infarto del Miocardio , Valor Predictivo de las Pruebas , Humanos , Masculino , Femenino , Infarto del Miocardio/sangre , Infarto del Miocardio/diagnóstico , Infarto del Miocardio/mortalidad , Infarto del Miocardio/epidemiología , Persona de Mediana Edad , Proteína 5 de Unión a Factor de Crecimiento Similar a la Insulina/sangre , Anciano , Biomarcadores/sangre , Estudios de Seguimiento , Pronóstico
16.
Zhongguo Shi Yan Xue Ye Xue Za Zhi ; 32(3): 805-810, 2024 Jun.
Artículo en Chino | MEDLINE | ID: mdl-38926971

RESUMEN

OBJECTIVE: To evaluate the clinical and prognostic value of prothrombin time (PT) and activated partial thromboplastin time (APTT) in newly diagnosed patients with multiple myeloma (MM). METHODS: The clinical data of 116 newly diagnosed MM patients in the Second Hospital and Third Hospital of Shanxi Medical University from October 2014 to March 2022 were analyzed retrospectively, and the patients were divided into two groups: normal PT and APTT group and prolonged PT or APTT group. The differences in sex, age, classification, staging, bleeding events, laboratory indicators [including hemoglobin (Hb), platelet count (PLT), serum calcium, serum albumin (ALB), lactate dehydrogenase (LDH), serum creatinine and ß2-microglobulin], and cytogenetic characteristics between the two groups of patients were compared. The effect of prolonged PT or APTT on survival of patients with MM was analyzed. RESULTS: Compared with patients in normal PT and APTT group, patients in prolonged PT or APTT group were more likely to experience bleeding events (χ2=5.087, P =0.024), with lower ALB levels (χ2=4.962, P =0.026) and PLT levels (χ2=4.309, P =0.038), and higher serum calcium levels (χ2=5.056, P =0.025). The positive rates of del17p, del13q and 1q21+ in prolonged PT or APTT group were higher than those in normal PT and APTT group, but the difference was not statistically significant (P >0.05). K-M survival analysis showed that the prolonged PT or APTT group had a shorter median progression-free survival (PFS) (P =0.032) and overall survival (OS) (P =0.032). Multivariate Cox analysis showed that prolonged PT or APTT (HR=2.116, 95%CI :1.025-4.372, P =0.043) and age ≥65 years (HR=2.403, 95%CI : 1.195-4.836, P =0.014) were independent risk factor for OS in newly diagnosed MM patients. However, prolonged PT or APTT had no significant effect on PFS of newly diagnosed MM patients (HR=1.162, 95%CI : 0.666-2.026, P =0.597). CONCLUSION: Newly diagnosed MM patients with prolonged PT or APTT have worse clinical indicators, shorter PFS and OS. Prolonged PT or APTT is an independent risk factor for OS in MM patients.


Asunto(s)
Mieloma Múltiple , Tiempo de Protrombina , Humanos , Mieloma Múltiple/sangre , Mieloma Múltiple/diagnóstico , Tiempo de Tromboplastina Parcial , Pronóstico , Estudios Retrospectivos , Masculino , Femenino , Persona de Mediana Edad
17.
Anal Chem ; 96(19): 7747-7755, 2024 05 14.
Artículo en Inglés | MEDLINE | ID: mdl-38691774

RESUMEN

Accurate classification of tumor cells is of importance for cancer diagnosis and further therapy. In this study, we develop multimolecular marker-activated transmembrane DNA computing systems (MTD). Employing the cell membrane as a native gate, the MTD system enables direct signal output following simple spatial events of "transmembrane" and "in-cell target encounter", bypassing the need of multistep signal conversion. The MTD system comprises two intelligent nanorobots capable of independently sensing three molecular markers (MUC1, EpCAM, and miR-21), resulting in comprehensive analysis. Our AND-AND logic-gated system (MTDAND-AND) demonstrates exceptional specificity, allowing targeted release of drug-DNA specifically in MCF-7 cells. Furthermore, the transformed OR-AND logic-gated system (MTDOR-AND) exhibits broader adaptability, facilitating the release of drug-DNA in three positive cancer cell lines (MCF-7, HeLa, and HepG2). Importantly, MTDAND-AND and MTDOR-AND, while possessing distinct personalized therapeutic potential, share the ability of outputting three imaging signals without any intermediate conversion steps. This feature ensures precise classification cross diverse cells (MCF-7, HeLa, HepG2, and MCF-10A), even in mixed populations. This study provides a straightforward yet effective solution to augment the versatility and precision of DNA computing systems, advancing their potential applications in biomedical diagnostic and therapeutic research.


Asunto(s)
ADN , Molécula de Adhesión Celular Epitelial , MicroARNs , Humanos , Molécula de Adhesión Celular Epitelial/metabolismo , ADN/química , MicroARNs/análisis , MicroARNs/metabolismo , Mucina-1/metabolismo , Mucina-1/análisis , Computadores Moleculares , Células MCF-7 , Biomarcadores de Tumor/metabolismo , Biomarcadores de Tumor/análisis , Membrana Celular/metabolismo , Membrana Celular/química , Células Hep G2
18.
J Proteome Res ; 23(6): 2054-2066, 2024 Jun 07.
Artículo en Inglés | MEDLINE | ID: mdl-38775738

RESUMEN

The metabolites and microbiota in tongue coating display distinct characteristics in certain digestive disorders, yet their relationship with colorectal cancer (CRC) remains unexplored. Here, we employed liquid chromatography coupled with tandem mass spectrometry to analyze the lipid composition of tongue coating using a nontargeted approach in 30 individuals with colorectal adenomas (CRA), 32 with CRC, and 30 healthy controls (HC). We identified 21 tongue coating lipids that effectively distinguished CRC from HC (AUC = 0.89), and 9 lipids that differentiated CRC from CRA (AUC = 0.9). Furthermore, we observed significant alterations in the tongue coating lipid composition in the CRC group compared to HC/CRA groups. As the adenoma-cancer sequence progressed, there was an increase in long-chain unsaturated triglycerides (TG) levels and a decrease in phosphatidylethanolamine plasmalogen (PE-P) levels. Furthermore, we noted a positive correlation between N-acyl ornithine (NAOrn), sphingomyelin (SM), and ceramide phosphoethanolamine (PE-Cer), potentially produced by members of the Bacteroidetes phylum. The levels of inflammatory lipid metabolite 12-HETE showed a decreasing trend with colorectal tumor progression, indicating the potential involvement of tongue coating microbiota and tumor immune regulation in early CRC development. Our findings highlight the potential utility of tongue coating lipid analysis as a noninvasive tool for CRC diagnosis.


Asunto(s)
Neoplasias Colorrectales , Lipidómica , Fosfatidiletanolaminas , Espectrometría de Masas en Tándem , Lengua , Humanos , Neoplasias Colorrectales/metabolismo , Neoplasias Colorrectales/microbiología , Lipidómica/métodos , Masculino , Femenino , Lengua/microbiología , Lengua/metabolismo , Lengua/patología , Lengua/química , Persona de Mediana Edad , Espectrometría de Masas en Tándem/métodos , Fosfatidiletanolaminas/metabolismo , Fosfatidiletanolaminas/análisis , Anciano , Cromatografía Liquida , Lípidos/análisis , Lípidos/química , Triglicéridos/metabolismo , Triglicéridos/análisis , Adenoma/metabolismo , Adenoma/microbiología , Esfingomielinas/análisis , Esfingomielinas/metabolismo , Ácido 12-Hidroxi-5,8,10,14-Eicosatetraenoico/metabolismo , Ácido 12-Hidroxi-5,8,10,14-Eicosatetraenoico/química , Plasmalógenos/análisis , Plasmalógenos/metabolismo , Plasmalógenos/química , Estudios de Casos y Controles , Etanolaminas/metabolismo , Etanolaminas/análisis , Etanolaminas/química , Ceramidas/metabolismo , Ceramidas/análisis , Adulto
19.
Front Hum Neurosci ; 18: 1387674, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38799296

RESUMEN

Introduction: Psycholinguistic studies have argued for the age of acquisition (AoA) of words as a marker of concept learning, showing that the semantic features of concepts themselves influence the age at which their labels are learned. However, empirical evidence suggests that semantic features such as imageability and linguistic phenomena such as frequency do not adequately predict AoA. The present study takes the developmental approach of embodied cognition and investigates the effects of sensorimotor experiences on the ease of acquisition of the concept acquired in bilinguals. Specifically, we investigated (1) whether the sensorimotor experience can explain AoA beyond frequency; (2) and whether these patterns are consistent across L1 Chinese and L2 English. Methods: We conducted sensorimotor rating measures in both Chinese and English on 207 items in which Chinese-English bilingual adults were requested to evaluate the extent to which they experienced concepts by employing six perceptual senses and five effectors for actions located in various regions of the body. Meanwhile, data on AoA and frequency were collected. Results: The present study showed the sensorimotor experience was closely linked with AoAs in both languages. However, the correlation analysis revealed a trend of higher correlations between AoAs for the same concepts and L1 Chinese, relative to L2 English for the present Chinese-English bilinguals. Importantly, the hierarchical regression analysis demonstrated that after controlling for frequency, sensorimotor experience explained additional variance in L1 AoA. However, L2 sensorimotor experience did not explain the variance in L2 AoA. Sensorimotor experience explained more share of variance in L1 AoA but frequency accounted for more variance in L2 AoA. Discussion: The findings suggest that concept acquisition should consider the grounding in appropriate sensorimotor experience beyond linguistic phenomena like frequency.

20.
World J Hepatol ; 16(4): 537-549, 2024 Apr 27.
Artículo en Inglés | MEDLINE | ID: mdl-38689749

RESUMEN

The tumor microenvironment is a complex network of cells, extracellular matrix, and signaling molecules that plays a critical role in tumor progression and metastasis. Lymphatic and blood vessels are major routes for solid tumor metastasis and essential parts of tumor drainage conduits. However, recent studies have shown that lymphatic endothelial cells (LECs) and blood endothelial cells (BECs) also play multifaceted roles in the tumor microenvironment beyond their structural functions, particularly in hepatocellular carcinoma (HCC). This comprehensive review summarizes the diverse roles played by LECs and BECs in HCC, including their involvement in angiogenesis, immune modulation, lymphangiogenesis, and metastasis. By providing a detailed account of the complex interplay between LECs, BECs, and tumor cells, this review aims to shed light on future research directions regarding the immune regulatory function of LECs and potential therapeutic targets for HCC.

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