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1.
Cell Biochem Biophys ; 2024 Sep 16.
Artículo en Inglés | MEDLINE | ID: mdl-39283585

RESUMEN

Recently, numerous studies have revealed the participation of circular RNAs (circRNAs) in cancer progression. Likewise, this research focused on circRNAs in hepatocellular carcinoma (HCC). A lowly expressed circRNA hsa_circ_0072309 in HCC was screened by analyzing the circRNA microarray GSE242797 and GSE216115 and identified in clinical specimens and cells. Subsequently, CCK-8, colony formation, and transwell assays were performed. The results revealed that hsa_circ_0072309 overexpression suppressed HCC cell proliferation, migration, invasion, and sorafenib resistance, whereas its suppression showed opposite results. Mechanistic investigation found an interaction between hsa_circ_0072309 and its host gene leukemia inhibitory factor receptor (LIFR) in HCC. We found that LIFR overexpression promoted the hsa_circ_0072309 formation. In turn, hsa_circ_0072309 recruited the E1A binding protein p300 to promote the enrichment of H3K27 acetylation (H3K27ac) in the LIFR enhancer, thus transcriptionally promoting LIFR expression. To conclude, we revealed a hsa_circ_0072309/LIFR regulatory loop in HCC, which may provide a potential target for HCC treatment.

2.
MedComm (2020) ; 5(8): e677, 2024 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-39105195

RESUMEN

A global outbreak of monkeypox (mpox) caused by the mpox virus (MPXV) has posed a serious threat to public health worldwide, thus calling for the urgent development of antivirals and vaccines to curb its further spread. In this study, we screened 41 anhydride-modified proteins and found that 3-hydroxyphthalic anhydride-modified ß-lactoglobulin (3HP-ß-LG), a clinically used anti-HPV agent, was highly effective in inhibiting infection of vaccinia virus Tiantan strain (VACV-VTT) and MPXV. Mechanistic studies demonstrated that 3HP-ß-LG bound to the virus, not the host cell, by targeting the early stage of virus entry, possibly through the interaction between the amino acids with negatively charges in 3HP-ß-LG and the key amino acids with positive charges in the target region of A29L, a key surface protein of MPXV. A synergistic effect was observed when 3HP-ß-LG was combined with tecovirimat, a small-molecule antiviral drug approved by the United States Food and Drug Administration and the European Medicine Agency for the treatment of smallpox and mpox. Because of its clinically proven safety and stability, 3HP-ß-LG shows promise for further development as a prophylactic agent to prevent the sexual transmission of MPXV.

3.
J Mol Histol ; 2024 Aug 19.
Artículo en Inglés | MEDLINE | ID: mdl-39160363

RESUMEN

Hepatocellular carcinoma (HCC) has a high mortality rate, and the identification of early prognostic markers is crucial for improving patient outcomes. This study aimed to investigate the correlation between the expression of Histocompatibility Minor 13 (HM13) and the prognosis of HCC patients. HM13 protein expression was assessed in HCC tissues and cells through immunohistochemistry (IHC), quantitative reverse transcription PCR (qRT-PCR), and western blot. The relationship between HM13 expression and clinicopathological data of HCC was evaluated. Bioinformatics analyses, including Gene Expression Omnibus (GEO) database, Gene Expression Profiling Interactive Analysis (GEPIA), and Kaplan-Meier plotter (K-M plotter), were employed to analyze HM13 expression and its association with patient survival. HM13 was significantly overexpressed in HCC tissues and cells compared to normal controls. IHC revealed that HM13 protein was primarily localized in the cytoplasm and highly expressed in HCC tissues. Interestingly, patients with high HM13 expression had significantly poorer overall survival (OS), progression-free survival (PFS), recurrence-free survival (RFS), and disease-specific survival (DSS) than those with low expression. HM13 expression was associated with Edmondson grade, metastasis, microvascular invasion, and alpha-fetoprotein (AFP) levels. Multivariate analysis identified HM13 as an independent prognostic factor for poor OS in HCC. HM13 was markedly overexpressed in HCC and correlated with poor prognosis, suggesting its potential as a promising biomarker for early prognostic detection in HCC patients.

5.
J Orthop Surg Res ; 19(1): 55, 2024 Jan 12.
Artículo en Inglés | MEDLINE | ID: mdl-38217013

RESUMEN

OBJECTIVE: To explore the applicability of bone reamer and trephine for foraminoscopy in percutaneous endoscopic lumbar discectomy (PELD), and to provide a theoretical basis for foraminoplasty options in clinical practice. METHODS: This study was a prospective cohort study. Sixty-three consecutive patients who underwent PELD for lumbar disc herniation between May 2021 and July 2022 were analysed. Foraminoplasty were performed by bone reamer or trephine. The amount of bone removed and the foramen area enlarged during foraminoplasty by both tools were measured by 3D slicer and Digimizer software, and the numbers of fluoroscopic views were recorded. RESULTS: The bone reamer removed less bone in the Superior Articular Process (SAP) than the trephine (t = 17.507, P < 0.001), and the area enlarged by the bone reamer was smaller than that of the trephine (t = 10.042, P = 0.002). The overall numbers of fluoroscopic views were significantly more in the bone reamer group than in the trephine group (t = 19.003, P < 0.001). In the bone reamer group, when the area of preoperative (FPZ) was no less than 54.55 mm2, the mean number of fluoroscopic views significantly decreased (t = 14.443, P = 0.001). CONCLUSION: Bone reamer was safer and trephine was more efficient for foraminoscopy in PELD. An area of preoperative (FPZ) of 54.55 mm2 can be used as a critical value: bone reamer reduced the risk for cases above the value, while trephine improved the efficiency for cases less than the value.


Asunto(s)
Discectomía Percutánea , Desplazamiento del Disco Intervertebral , Humanos , Desplazamiento del Disco Intervertebral/diagnóstico por imagen , Desplazamiento del Disco Intervertebral/cirugía , Resultado del Tratamiento , Estudios Prospectivos , Endoscopía , Vértebras Lumbares/diagnóstico por imagen , Vértebras Lumbares/cirugía , Estudios Retrospectivos
6.
J Pain Res ; 17: 367-375, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38292757

RESUMEN

Objective: To investigate the surgical method and efficacy of percutaneous endoscopic transforaminal discectomy (PETD) for the treatment of lumbar disc herniation (LDH) with different migration levels by introducing the strategy of foramenoplasty with the "distal nucleus pulposus as the core". Methods: Clinical data of LDH patients who underwent single-segment PETD surgery were retrospectively analyzed. Three groups were categorized according to the degree of nucleus pulposus migration in the sagittal position: no migration group, mild migration group, and high migration group. Different sites of foramenoplasty were used for LDH with different degrees of migration. All patients were followed up for at least 12 months. The clinical and follow-up data of the three groups were compared. Results: A total of 102 patients were included, of which 46 (45.1%) were in the no migration group, 36 (35.3%) in the mild migration group, and 20 (19.6%) in the high migration group. Encouraging treatment results were obtained in all three groups. Conclusion: PETD is effective in the treatment of LDH with different degrees of migration, and the foramenoplasty concept of "distal nucleus pulposus as the core" can effectively guide the molding site of foramenoplasty and facilitate the accurate placement of the working trocar.

7.
Oncol Lett ; 26(3): 399, 2023 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-37600338

RESUMEN

The majority of benign meningiomas exhibit a slow growth rate and are associated with a good prognosis. The recurrence and extracranial metastases of meningioma are rare. The present report describes the case of a patient with recurrence of transitional meningioma for which total resection had been performed 8 years prior. Furthermore, the transitional meningioma transformed into atypical meningioma, and metastasized to the ribs. The present report aimed to describe the clinical features and pathological findings of a case of malignant transformation and distant metastasis of benign meningioma. A review of the literature was also performed.

8.
J Gastrointest Oncol ; 14(1): 302-311, 2023 Feb 28.
Artículo en Inglés | MEDLINE | ID: mdl-36915464

RESUMEN

Background: Transarterial chemoembolization (TACE) is widely used for patients with unresectable hepatocellular carcinoma (HCC); however, previous studies have demonstrated that conventional TACE (cTACE) might affect hepatic hemodynamics, which both associate with liver cirrhosis and survival. Drug-eluting bead TACE (DEB-TACE) improves treatment efficacy and safety, but its effects on the hepatic hemodynamics of HCC patients with cirrhosis remain unknown. Methods: This retrospective cohort study included unresectable HCC patients treated with DEB-TACE from April 2018 to September 2020, who had limited tumor burden and liver function. The hepatic hemodynamics was measured by hepatic venous pressure gradient (HVPG) using occlusion balloon catheter before and after treatment. Baseline characteristics of demography, laboratory (tumoral and liver-function) and hepatic hemodynamics were compared between patients with and without clinically significant portal hypertension (CSPH). Laboratory examination and imaging assessments were performed 4-6 weeks; overall survival (OS) was defined as the time from DEB-TACE initiation until death or last follow-up. Results: Twenty-four eligible consecutive HCC patients were included, with a median age of 58.0 years and 54.2% in Child-Pugh A class. During a median follow-up of 9.8 months, median OS for the whole cohort of patients reached 10.0 months. Kaplan-Meier survival curves and Cox regression analyses demonstrated that age >60 years, ascites, Eastern Cooperative Oncology Group (ECOG) score of 1, Child-Pugh B class, Model for End-Stage Liver Disease (MELD) score >10, and albumin (ALB) <35 g/L were prognostic factors for decreased OS (P<0.05). Importantly, hepatic hemodynamics were significantly improved in patients after treatment with DEB-TACE (7.5 vs. 5.3 mmHg of HVPG, P<0.001), especially for those with CSPH (13.6 vs. 10.2 mmHg of HVPG, P=0.014). Conclusions: DEB-TACE can improve hepatic hemodynamics in HCC patients, especially those with CSPH. Combing these findings with its effects on tumor, DEB-TACE might be more suitable for HCC patients with cirrhosis.

9.
Exp Ther Med ; 25(2): 83, 2023 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-36741913

RESUMEN

Immune-related adverse events following treatment with immune checkpoint inhibitors (ICIs) can occur at any time during therapy, with onset occurring most frequently during the first 3 months of treatment. However, they rarely occur after treatment cessation. An awareness of delayed immune-related events following the termination of immunotherapy is paramount for optimal tumour management. The present study reports a case of a 69-year-old male patient with right lung adenocarcinoma. He suffered from psoriasis for ~40 years and was suspected of developing immune checkpoint inhibitor-related pneumonitis (CIP) 6 months after the cessation of treatment with the anti-programmed cell death-1 receptor antibody sintilimab. The present case study is, to the best of our knowledge, the first case of late-onset CIP after the cessation of sintilimab. Subsequently, the report also reviews previously reported cases of late-onset CIP after the cessation of ICI treatment. The present report highlights the finding that CIP can develop, although rarely reported, months or even years after the termination of immunotherapy. Therefore, CIP should always be considered as one of the possibilities and addressed accordingly once the pulmonary infection is ruled out. Careful monitoring, timely diagnosis and administration of corticosteroids are essential in controlling this condition, particularly for patients with pre-existing autoimmune diseases.

10.
Comput Math Methods Med ; 2022: 7095423, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-36199771

RESUMEN

Objective: This research is aimed at studying the effect of microwave ablation combined with the antiprogrammed death- (PD-) 1 monoclonal antibody on T cell subsets and long-term prognosis in patients suffering from non-small-cell lung cancer (NSCLC). Methods: Employing the random number table technique, a total of 122 NSCLC patients who received treatment at our hospital between May 2015 and June 2019 were selected and assigned to the observation group and the control group, and each group comprised 61 patients (n = 61). While the control group received only anti-PD-1 monoclonal antibody treatment, the observation group received microwave ablation in combination with anti-PD-1 monoclonal antibody. The clinical efficacy was observed for both groups. The levels of T cell subsets (CD3+, CD4+, and CD8+), serum tumor markers (squamous cell carcinoma antigen (SCCA), cytokeratin Ig fragment (CYFRA21-1), and serum carcinoembryonic antigen (CEA)), nuclear factor kappa B (NF-κB), protease C (PKC), and mitogen-activated protein kinase (MAPK) mRNA expression between the two groups were compared. The frequency of adverse reactions was observed in both groups. The survival time of both the groups was recorded over the course of three years of follow-up. The Kaplan-Meier method was employed for analyzing the survival of both the control and the observation group. Results: The response rate (RR) of the observation group (80.33%) was considerably greater in comparison to that of the control group (62.30%) (P < 0.05). Following treatment, the observation group's levels of CD3+, CD4+, CD8+, SCCA, CyFRA21-1, and CEA and the mRNA expressions of NF-κB, PKC, and MAPK were superior to those of the control group, with statistical significances (all P < 0.05). Between the two groups, there was no significant difference in the occurrence of adverse reactions (P > 0.05). The observation group had greater 1-, 2-, and 3-year survival rates (57.38%, 39.34%, and 29.51%) than the control group (32.79%, 18.03%, and 8.20%), with statistically significant differences (all P < 0.05). Conclusion: Microwave ablation in combination with an anti-PD-1 monoclonal antibody could effectively improve the level of T cell subsets and serum tumor markers in NSCLC patients, resulting in a long-term prognosis of patients with good therapeutic effect and safety.


Asunto(s)
Carcinoma de Pulmón de Células no Pequeñas , Neoplasias Pulmonares , Anticuerpos Monoclonales/efectos adversos , Antígenos de Neoplasias , Biomarcadores de Tumor/genética , Antígeno Carcinoembrionario , Carcinoma de Pulmón de Células no Pequeñas/tratamiento farmacológico , Carcinoma de Pulmón de Células no Pequeñas/cirugía , Humanos , Fragmentos de Inmunoglobulinas/uso terapéutico , Queratina-19 , Neoplasias Pulmonares/tratamiento farmacológico , Neoplasias Pulmonares/cirugía , Microondas/uso terapéutico , Proteínas Quinasas Activadas por Mitógenos , FN-kappa B , Pronóstico , ARN Mensajero , Subgrupos de Linfocitos T
11.
Schizophr Res ; 241: 244-250, 2022 03.
Artículo en Inglés | MEDLINE | ID: mdl-35180663

RESUMEN

AIM: To evaluate the impact of quetiapine treatment on central set point of thyroid homeostasis in patients with acute phase schizophrenia. METHODS: During Jan. 2016 to Dec. 2018, we conducted a retrospective cohort study in "the Second Affiliated Hospital of Xinxiang Medical University". All patients admitted for treatment of schizophrenia being euthyroid at admission and reevaluated for thyroid function during hospitalization were recruited and followed until discharge. Patients treated with mood stabilizers during hospitalization were excluded. Quetiapine use was the exposure measure. The primary outcomes were the parameters of central set point of thyroid homeostasis measured by "thyroid-stimulating hormone (TSH) index" and "thyroid feedback quantile-based index (TFQI)". Multiple regression models were used to estimate the association between quetiapine exposure and outcomes. RESULTS: A total of 1302 patients were enrolled in this study. Quetiapine exposure was associated with a more significant decline in the TSH index and TFQI, and the adjusted ß and 95% confidence interval (CI) were -0.12 (-0.22, -0.01) and -0.10 (-0.15, -0.05), respectively. A dose-response association between quetiapine exposure and decline in TSH index and TFQI was observed (P < 0.05). Sensitivity analyses restricting to patients under mono-atypical antipsychotic therapy, or selecting patients in the non-quetiapine group matched to quetiapine group yielded similar results. CONCLUSION: Quetiapine was associated with TSH index and TFQI reduction in a dose-response pattern, suggesting that impaired central set point may be involved in the mechanism by which quetiapine affects hypothalamus-pituitary-thyroid axis in acute phase schizophrenia patients.


Asunto(s)
Antipsicóticos , Esquizofrenia , Antipsicóticos/efectos adversos , Dibenzotiazepinas/efectos adversos , Homeostasis , Humanos , Fumarato de Quetiapina/uso terapéutico , Estudios Retrospectivos , Esquizofrenia/inducido químicamente , Esquizofrenia/tratamiento farmacológico , Glándula Tiroides
12.
Anticancer Drugs ; 31(3): 205-210, 2020 03.
Artículo en Inglés | MEDLINE | ID: mdl-31934888

RESUMEN

Icotinib is a first-generation inhibitor of epidermal growth factor receptor, which has been approved by the Chinese National Medical Products Administration, for the treatment of non-small cell lung cancer with epidermal growth factor receptor sensitive mutations. In addition, icotinib also shows moderate activity in other solid tumors driven by epidermal growth factor receptor, including non-small cell lung cancer with epidermal growth factor receptor rare non-resistant mutations, and esophageal cancer with epidermal growth factor receptor amplification or overexpression. This article reviews the efficacy of icotinib in different solid tumors with different epidermal growth factor receptor alterations.


Asunto(s)
Éteres Corona/uso terapéutico , Receptores ErbB/antagonistas & inhibidores , Receptores ErbB/genética , Mutación , Neoplasias/tratamiento farmacológico , Quinazolinas/uso terapéutico , Carcinoma de Pulmón de Células no Pequeñas/tratamiento farmacológico , Humanos , Neoplasias Pulmonares/tratamiento farmacológico , Neoplasias/genética
13.
Environ Pollut ; 256: 113462, 2020 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-31706772

RESUMEN

Natural birnessite-like minerals are commonly enriched in various transitional metals (TMs), which greatly modify the mineral structure and properties. However few studies are yet conducted systematically on the effects of TM doping on birnessite reactivity towards Cr(III) oxidation. In the present study, the transformation behaviors of Cr(III) on Co-, Ni-, V-containing birnessites were investigated. Co and Ni doping generally decrease the mineral crystalline sizes and hydrodynamic sizes (DH) while V-doping greatly decreases the crystalline sizes but not the DH, owing to particle aggregation. Co and Ni firstly decrease and then increase the mineral zeta potentials (ζ) at pH4 while V decreases ζ. Electrochemical specific capacitances for Co-containing birnessites are gradually reduced, while those for Ni-doped birnessites are slightly reduced and for V-doped birnessites increased, which have a positively linear relationship with the amounts of Cr(III) oxidized by these samples. Cr(III) removal efficiencies from solution by these Co-, Ni- and V-containing birnessites are 26-51%, ∼62-72% and ∼96-100%, respectively, compared to ∼92% by pure birnessite. Cr(III) oxidation kinetics analysis demonstrates the gradual decrease of Mn(IV) and concurrent increase of Mn(III) and the adsorption of mainly Cr(III) on mineral surfaces. A negatively linear relationship exists between birnessite lateral sizes and the proportions of Mn(IV/III) consumed to oxidize Cr(III). Apparent initial Cr(III) oxidation rate (kobs) for Co-containing birnessites are greatly reduced, while those for Ni-doped samples moderately decreased and for V-doped samples first increased and then decreased. A positively or negatively linear relationship exists between kobs or the amount of Mn(II) released and the mineral Mn(IV) content respectively. Cr(III) oxidation probably initiates from layer edge sites of Ni-doped birnessites but the vacancies of Co- and V-containing birnessites. These results provide insights into the reaction mechanisms of Cr(III) with natural birnessite-like minerals.


Asunto(s)
Óxidos/química , Adsorción , Cromo/química , Cobalto/química , Intercambio Iónico , Cinética , Minerales , Níquel/química , Oxidación-Reducción , Vanadio/química
14.
Talanta ; 143: 101-106, 2015 Oct 01.
Artículo en Inglés | MEDLINE | ID: mdl-26078135

RESUMEN

Here, we developed an enzyme-free, label-free, and sensitive fluorescence cooperative amplification strategy based on a hairpin assembly circuit which coupled catalytic hairpin assembly (CHA) with hybridization chain reaction (HCR) for small molecule adenosine. A double-strand DNA probe with aptamer-catalysis strand (Apt-C) and inhibit strand (Inh) was designed for adenosine recognition and signal transduction which was named as Apt-C/Inh. Hairpins H1 and H2 were employed for constructing the CHA, and hairpins H3 and H4 for the HCR. Through the binding of adenosine and the Apt-C, the Inh was released from the Apt-C/Inh. Then the free Apt-C initiated the CHA through successively opening H1 and H2, generating H1/H2 complex and recyclable Apt-C. Next, the released Apt-C entered another CHA cycle, and the H1/H2 complex further initiated the HCR of H3 and H4 which induced the formation of the concatemers of H3/H4 complex. Such a process brought the two ends of hairpins H3 into close proximity, yielding numerous integrated G-quadruplexes which were initially sequestered in the stem and two terminals of H3. Finally, N-methyl mesoporphyrin IX (NMM) was added to generate an enhanced fluorescence signal. In the proposed strategy, driven only by the energy from hybridization, one target could trigger multiple HCR events via CHA-based target-cycle, leading to a remarkable enzyme-free amplification for adenosine. The detection limit could achieve as low as 9.7 × 10(-7) mol L(-1). Furthermore, G-quadruplexes were applied to construct label-free hairpin assembly circuit, which made it more simple and cost-effective. The satisfactory recoveries were obtained when detecting adenosine in spiked human serum and urine samples, demonstrating the feasibility of this detection strategy in biological samples.


Asunto(s)
Adenosina/análisis , Técnicas Biosensibles/métodos , Sondas de ADN/química , Secuencias Invertidas Repetidas , Adenosina/sangre , Adenosina/orina , Aptámeros de Nucleótidos/química , Aptámeros de Nucleótidos/genética , Sondas de ADN/genética , Estudios de Factibilidad , Humanos , Límite de Detección , Técnicas de Amplificación de Ácido Nucleico , Hibridación de Ácido Nucleico , Espectrometría de Fluorescencia
15.
Biosens Bioelectron ; 70: 15-20, 2015 Aug 15.
Artículo en Inglés | MEDLINE | ID: mdl-25775969

RESUMEN

In this work, we constructed a label-free and dual-amplified fluorescence aptasensor for sensitive analysis of adenosine based on exonuclease III (Exo III)-assisted DNA cycling and hybridization chain reaction (HCR). Firstly, we fabricated a trifunctional probe that consisting of the catalytic strand, the aptamer sequence and a streptavidin-magnetic nanobead (streptavidin-MNB). The streptavidin-MNB played a role of enrichment and separation to achieve a low background. The aptamer sequence was employed as a recognition element to bind the target adenosine, leading to the releasing of the catalytic stand. Then, the catalytic strand induced the Exo III-assisted DNA cycling reaction and produced a large amount of DNA fragments, which got a primary amplification. Subsequently, the DNA fragments acted as trigger strands to initiate HCR, forming nicked double helices with multiple G-quadruplex structures, which achieved a secondary amplification. Finally, the G-quadruplex structures bonded with the N-nethyl mesopor-phyrin IX (NMM) and yielded an enhanced fluorescence signal, realizing the label-free detection. In the proposed strategy, a small amount of adenosine can be converted to a large amount of DNA triggers, leading to a significant amplification for the target. This method exhibited a high sensitivity toward adenosine with a detection limit of 4.2×10(-7) mol L(-1), which was about 10 times lower than that of the reported label-free strategies. Moreover, this assay can significantly distinguish the content of adenosine in urine samples of cancer patients and normal human, indicating that our method will offer a new strategy for reliable quantification of adenosine in medical research and early clinical diagnosis.


Asunto(s)
Adenosina/orina , Técnicas Biosensibles/instrumentación , ADN/química , Exodesoxirribonucleasas/química , Hibridación Fluorescente in Situ/instrumentación , Neoplasias/orina , Aptámeros de Nucleótidos/química , Aptámeros de Nucleótidos/genética , Biomarcadores de Tumor/orina , ADN/genética , Diseño de Equipo , Análisis de Falla de Equipo , Exodesoxirribonucleasas/genética , Humanos , Neoplasias/diagnóstico , Técnicas de Amplificación de Ácido Nucleico/instrumentación , Reproducibilidad de los Resultados , Sensibilidad y Especificidad , Coloración y Etiquetado
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