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1.
Int Arch Allergy Immunol ; 182(3): 210-219, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-33477144

RESUMEN

BACKGROUND: This study aims to investigate the regulatory effect of microRNA-96-5p (miR-96-5p) in the pathophysiological process of allergic rhinitis (AR). METHODS: Nasal mucosal tissue samples were collected from AR patients and healthy controls. An in vitro AR model was established by stimulating human nasal epithelial cells (HNECs) with interleukin (IL)-13. The expressions of target genes and proteins were measured by qPCR, Western blot, or ELISA. Dual-luciferase reporter assay and pull-down assay were performed to confirm the interaction between miR-96-5p and DEP domain-containing mammalian target of rapamycin-interacting protein (DEPTOR). RESULTS: The level of miR-96-5p was increased while the expression of DEPTOR was decreased in AR patients. The expressions of proinflammatory cytokines were markedly increased and the mammalian target of rapamycin (mTOR)/NF-κB pathway was activated in HNECs following IL-13 stimulation. miR-96-5p downregulation alleviated the stimulated function by IL-13. DEPTOR was the target of miR-96-5p. Knockdown of DEPTOR reversed the function of miR-96-5p inhibitor on IL-13-stimulated HNECs. CONCLUSIONS: The current study showed that miR-96-5p and DEPTOR were aberrantly expressed in AR nasal mucosa. miR-96-5p knockdown inhibited the production of inflammatory cytokines and the activation of mTOR/NF-κB pathway via targeting DEPTOR. These findings suggested that miR-96-5p might be used as a diagnostic marker and therapeutic target for the treatment of AR.


Asunto(s)
Regulación de la Expresión Génica , Péptidos y Proteínas de Señalización Intracelular/metabolismo , MicroARNs/genética , FN-kappa B/metabolismo , Rinitis Alérgica/etiología , Rinitis Alérgica/metabolismo , Transducción de Señal , Serina-Treonina Quinasas TOR/metabolismo , Citocinas/genética , Citocinas/metabolismo , Humanos , Mediadores de Inflamación/metabolismo , Mucosa Nasal/inmunología , Mucosa Nasal/metabolismo , Mucosa Nasal/patología , Interferencia de ARN , Rinitis Alérgica/diagnóstico
2.
BMC Neurol ; 20(1): 428, 2020 Nov 25.
Artículo en Inglés | MEDLINE | ID: mdl-33238916

RESUMEN

BACKGROUND: In recent years, the incidence of stroke has gradually increased in young people. There are many reasons causing stroke, including atherosclerosis, artery embolization, and cervical artery dissection and so on. However, cervical artery dissection is a major cause of stroke in young people. We present a case of ischemic stroke caused by dissection, whose distal vascular occlusion due to detachment of the thrombosis in the right internal carotid artery. CASE PRESENTATION: A 33-year-old male patient was admitted to the hospital because of stroke. Imaging examination showed that there was no visualization of the right middle cerebral artery and there were a large number of mural thrombus in the C1 segment of the right internal carotid artery. After emergency surgery, the patient had vascular recanalization and the symptoms were significantly improved. Magnetic resonance imaging showed a high signal in the C1 segment of the right internal carotid artery, the abnormal signal disappeared after antiplatelet therapy. CONCLUSIONS: When a patient has symptoms of stroke, we need to explore the root cause of stroke. Especially in young people, cervical artery dissection is an important reason that can't be ignored. Through review and analysis of this case, we hope to improve the understanding of radiologists and clinicians about the cervical artery dissection, reduce the rate of misdiagnosis, and improve patients' prognosis.


Asunto(s)
Disección de la Arteria Carótida Interna/complicaciones , Disección de la Arteria Carótida Interna/patología , Accidente Cerebrovascular/etiología , Adulto , Humanos , Imagen por Resonancia Magnética , Masculino
3.
BMC Neurol ; 19(1): 115, 2019 Jun 06.
Artículo en Inglés | MEDLINE | ID: mdl-31170963

RESUMEN

BACKGROUND: Fabry disease is rare, and the diagnosis is often delayed. Here, we describe a case of Fabry disease resulting in vasculopathy of the central nervous system. Magnetic resonance (MR) black-blood sequence (three-dimensional T1 volumetric isotropic turbo spin echo acquisition), with the unique advantage of imaging the vascular wall, facilitated a clear identification of the vasculopathy. CASE PRESENTATION: A 27-year-old man visited our hospital for the treatment of " double vision 6d." After a series of examinations, the patient was diagnosed with Fabry disease, which caused vasculopathy of the central nervous system. Subsequently, the patient was treated with corticosteroids and his symptoms were attenuated. Two months after the initial treatment, the initial lesion in the vascular vessel disappeared, however, a new lesion appeared. Similarly, four months after the initial treatment, although the previous lesion disappeared, a new lesion appeared. CONCLUSIONS: This case highlights that clinicians should use MR black-blood sequence scan in a timely manner in case of young patients with migratory lesions of brain. In case of detection of a vascular lesion in combination with other systemic lesions, the possibility of Fabry disease should be considered.


Asunto(s)
Trastornos Cerebrovasculares , Enfermedad de Fabry/diagnóstico , Adulto , Trastornos Cerebrovasculares/diagnóstico , Trastornos Cerebrovasculares/etiología , Trastornos Cerebrovasculares/patología , Trastornos Cerebrovasculares/fisiopatología , Enfermedad de Fabry/complicaciones , Femenino , Humanos , Imagen por Resonancia Magnética , Masculino
4.
Epilepsy Behav ; 88: 277-282, 2018 11.
Artículo en Inglés | MEDLINE | ID: mdl-30332659

RESUMEN

PURPOSE: The purpose of this study was to analyze the clinical and electrographic characteristics of seizures in LGI1-antibody encephalitis. METHODS: The methods utilized in this study were prospective analysis of the clinical manifestations, types of seizures, electroencephalogram (EEG), adjuvant examination, treatment and prognosis of 19 cases of LGI1-antibody encephalitis diagnosed from January 2017 to February 2018 in First Affiliated Hospital of Zhengzhou University, and reviewed related literatures. RESULTS: The 15/19 (79%) patients were male, and the average onset age was 58 years (23-82). The following cases were observed: 17 (89%) with epilepsy seizures, 14 (73%) with mental disorders, and 13 (68%) with cognitive impairment. Types of epilepsy were including focal aware seizures, focal-impaired awareness seizures, focal to bilateral tonic-clonic seizures, and status epilepticus. The motor events were most commonly clonus or automatisms, and the sensory events were frequently body shuddering. The 13 patients had faciobrachial dystonic seizures (FBDS); the median frequency was 48 per day (range 5-180). In some video-EEGs, multifocal ictal epileptiform discharges from frontal, temporal, and apical regions, and interictal slow wave activity were observed in patients. Normal EEG appeared in all patients during FBDS. Five patients had hyponatremia, and brain magnetic resonance imaging (MRI) results of 5 cases were abnormal. All patients were treated with antiepileptic drugs and immunotherapy, and their clinical symptoms were improved. During the follow-up period, 13 patients recovered basically, and 6 patients relapsed. One patient died of status epilepticus after relapse. CONCLUSIONS: Faciobrachial dystonic seizure and various types of epileptic seizures are characteristic manifestations of LGI1-antibody encephalitis, which can assist in early diagnosis. Once this has been diagnosed, antiepileptic drugs and immunotherapy should be given as soon as possible to the patient.


Asunto(s)
Autoanticuerpos/líquido cefalorraquídeo , Encefalitis/líquido cefalorraquídeo , Encefalitis/fisiopatología , Proteínas/metabolismo , Convulsiones/líquido cefalorraquídeo , Convulsiones/fisiopatología , Adulto , Anciano , Anciano de 80 o más Años , Anticonvulsivantes/uso terapéutico , Biomarcadores/líquido cefalorraquídeo , Electroencefalografía/métodos , Encefalitis/diagnóstico por imagen , Femenino , Humanos , Inmunoterapia/métodos , Péptidos y Proteínas de Señalización Intracelular , Imagen por Resonancia Magnética/métodos , Masculino , Persona de Mediana Edad , Estudios Prospectivos , Convulsiones/diagnóstico por imagen , Adulto Joven
5.
Int J Neurosci ; 126(4): 348-53, 2016.
Artículo en Inglés | MEDLINE | ID: mdl-26000810

RESUMEN

AIMS: The aims of this study were to investigate the clinical effects and safety of botulinum toxin A (BTX-A) in treating trigeminal neuralgia and its influences on accompanied depression, anxiety, sleep disorders, and quality of life. METHODS AND MATERIAL: Eighty-seven patients with one-branch classical trigeminal neuralgia were injected with BTX-A in the pain area. The visual analogic scale score, sleep interference score, Hamilton Anxiety Scale score, Hamilton Depression Scale score, and side effects were assessed at 1 week prior to and 8 weeks after treatment, respectively. RESULTS: The effective rates after 1, 2, 4, and 8 weeks of treatment were 48.28%, 66.67%, 78.16%, and 80.46%, respectively. The effective rates of anxiety and depression were 90.32% and 96.77%, respectively. When compared to that before treatment, the quality of life was significantly better in terms of role-physical, bodily pain, general health, vitality, social functioning, role-emotional, and mental health (all P < 0.01), while physical function was not significantly improved (P = 0.317). CONCLUSION: BTX-A treatment can significantly relieve the pain in trigeminal neuralgia patients; improve anxiety, depression, and sleep; and increase the quality of life. BTX-A treatment is a safe and effective method to treat classical trigeminal neuralgia.


Asunto(s)
Toxinas Botulínicas Tipo A/uso terapéutico , Neuralgia del Trigémino/tratamiento farmacológico , Adulto , Anciano , Anciano de 80 o más Años , Ansiedad/complicaciones , Ansiedad/tratamiento farmacológico , Toxinas Botulínicas Tipo A/administración & dosificación , Toxinas Botulínicas Tipo A/efectos adversos , Depresión/complicaciones , Depresión/tratamiento farmacológico , Femenino , Humanos , Inyecciones , Masculino , Persona de Mediana Edad , Dimensión del Dolor , Calidad de Vida , Trastornos del Sueño-Vigilia/complicaciones , Trastornos del Sueño-Vigilia/tratamiento farmacológico , Neuralgia del Trigémino/complicaciones
6.
J Headache Pain ; 17: 12, 2016.
Artículo en Inglés | MEDLINE | ID: mdl-26885826

RESUMEN

Short-lasting unilateral neuralgiform headaches with conjunctival injection and tearing (SUNCT) is a rare headache syndrome which belongs to trigeminal autonomic cephalalgias. Though the majority of SUNCT syndrome is idiopathic, more and more cases of secondary SUNCT syndrome have been reported recently. In this study, we present a case of symptomatic SUNCT syndrome caused by acute dorsolateral medullary infarction which was verified by brain MRI(magnetic resonance imaging). Up to now, there is not absolutely effective treatment for SUNCT syndrome. However, in our case, SUNCT was completely resolved after conventional treatment for cerebral infarction without specific drug intervention.


Asunto(s)
Síndrome Medular Lateral/complicaciones , Síndrome SUNCT/etiología , Humanos , Síndrome Medular Lateral/diagnóstico , Masculino , Persona de Mediana Edad , Síndrome SUNCT/diagnóstico
7.
J Headache Pain ; 15: 43, 2014 Jun 22.
Artículo en Inglés | MEDLINE | ID: mdl-24952600

RESUMEN

BACKGROUND: We investigated the long-term effects and safety of botulinum toxin-A (BTX-A) for treating trigeminal neuralgia (TN). We also studied long-term maintenance of this therapeutic effect. METHODS: A visual analog scale (VAS) score, pain attack frequency per day, patient's overall response to treatment and side effects during 14-month follow-up were evaluated in 88 patients with TN receiving BTX-A. The primary endpoints were pain severity (assessed by VAS) and pain attack frequency per day. The secondary endpoint was the patient's overall response to treatment, assessed using the Patient Global Impression of Change. The influence of different doses (≤50, 50-100 and ≥100 U) on the therapeutic effect was evaluated. RESULTS: Treatment was deemed "effective" within 1 month in 81 patients and at 2 months in 88 patients (100%). The shortest period of effective treatment was 3 months, and complete control of pain was observed in a maximum of 46 patients. The therapeutic effect decreased gradually after 3 months, and the prevalence of effective treatment at 14 months was 38.6%, with complete control of pain seen in 22 patients (25%). There was no significant difference in the prevalence of effective treatment between different dose groups at identical time points (p > 0.05). Three patients showed swelling at injection sites and 10 patients showed facial asymmetry, both of which disappeared spontaneously without special treatment. CONCLUSION: Local subcutaneous injection of BTX-A for TN treatment has considerable therapeutic effects lasting several months and is safe for this indication. At least one-quarter of patients maintained complete analgesia. The maintenance period of the therapeutic effect may be related to the reduction in the VAS score after the first injection of BTX-A.


Asunto(s)
Toxinas Botulínicas Tipo A/uso terapéutico , Neuralgia del Trigémino/tratamiento farmacológico , Adulto , Anciano , Anciano de 80 o más Años , Toxinas Botulínicas Tipo A/administración & dosificación , Toxinas Botulínicas Tipo A/efectos adversos , Femenino , Estudios de Seguimiento , Humanos , Inyecciones Subcutáneas , Masculino , Persona de Mediana Edad , Dimensión del Dolor , Resultado del Tratamiento
8.
Seizure ; 116: 93-99, 2024 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-37643945

RESUMEN

OBJECTIVES: Variants in NEXMIF had been reported associated with intellectual disability (ID) without epilepsy or developmental epileptic encephalopathy (DEE). It is unkown whether NEXMIF variants are associated with epilepsy without ID. This study aims to explore the phenotypic spectrum of NEXMIF and the genotype-phenotype correlations. MATERIALS AND METHODS: Trio-based whole-exome sequencing was performed in patients with epilepsy. Previously reported NEXMIF variants were systematically reviewed to analyze the genotype-phenotype correlations. RESULTS: Six variants were identified in seven unrelated cases with epilepsy, including two de novo null variants and four hemizygous missense variants. The two de novo variants were absent in all populations of gnomAD and four hemizygous missense variants were absent in male controls of gnomAD. The two patients with de novo null variants exhibited severe developmental epileptic encephalopathy. While, the patients with hemizygous missense variants had mild focal epilepsy with favorable outcome. Analysis of previously reported cases revealed that males with missense variants presented significantly higher percentage of normal intellectual development and later onset age of seizure than those with null variants, indicating a genotype-phenotype correlation. CONCLUSION: This study suggested that NEXMIF variants were potentially associated with pure epilepsy with or without intellectual disability. The spectrum of epileptic phenotypes ranged from the mild epilepsy to severe developmental epileptic encephalopathy, where the epileptic phenotypes variability are potentially associated with patients' gender and variant type.


Asunto(s)
Epilepsia Generalizada , Epilepsia , Discapacidad Intelectual , Humanos , Masculino , Discapacidad Intelectual/complicaciones , Discapacidad Intelectual/genética , Epilepsia/complicaciones , Epilepsia/genética , Convulsiones/complicaciones , Epilepsia Generalizada/complicaciones , Epilepsia Generalizada/genética , Fenotipo
9.
World J Clin Cases ; 11(13): 3099-3104, 2023 May 06.
Artículo en Inglés | MEDLINE | ID: mdl-37215409

RESUMEN

BACKGROUND: Angiosarcoma is a rare malignant tumor. Owing to the lack of specific clinical manifestations of this disease, it is difficult to achieve early diagnosis and start early treatment. CASE SUMMARY: A 78-year-old male patient was admitted to the hospital because of a bump on his head that did not heal for 4 mo. The patient was diagnosed with a refractory head wound. The patient underwent neoplasm resection and skin grafting surgery in the Plastic Surgery. The neoplasm was sent for pathological examination during the operation. The final pathological results were confirmed scalp angiosarcoma. CONCLUSION: Our research suggests that pathological examination should be performed for refractory ulcers of the scalp, and physical factor therapy should be used with caution before the diagnosis is clear.

10.
Cephalalgia ; 32(6): 443-50, 2012 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-22492424

RESUMEN

AIM: To investigate the efficacy, safety and tolerability of intradermal and/or submucosal administration of botulinum toxin type A (BTX-A) for patients with trigeminal neuralgia (TN). METHODS: In this randomized, double-blind, placebo-controlled study, 42 TN patients were randomly allocated into two groups, namely, intradermal and/or submucosal injection of BTX-A (75 U/1.5 mL; n = 22) or saline (1.5 mL; n = 20) in the skin and/or mucosa where pain was experienced. The primary endpoints were pain severity (assessed by the visual analogue scale) and pain attack frequency per day. The secondary endpoint was the patient's overall response to treatment, assessed using the Patient Global Impression of Change scale. Patients with ≥ 50% reduction in mean pain score at week 12 were defined as responders. RESULTS: A total of 40 patients completed the study. BTX-A significantly reduced pain intensity at week 2 and pain attack frequency at week 1. The efficacy was maintained throughout the course of the study. More BTX-A treated patients reported that pain had improved by the end of the study. Significantly more responders were present in the BTX-A group (68.18%) than in the placebo group (15.00%). BTX-A was well tolerated, with few treatment-related adverse events. CONCLUSIONS: BTX-A may be an efficient, safe and novel strategy for TN treatment.


Asunto(s)
Toxinas Botulínicas Tipo A/uso terapéutico , Fármacos Neuromusculares/uso terapéutico , Neuralgia del Trigémino/tratamiento farmacológico , Adulto , Anciano , Anciano de 80 o más Años , Método Doble Ciego , Femenino , Humanos , Masculino , Persona de Mediana Edad , Dimensión del Dolor , Resultado del Tratamiento
11.
Neuroscience ; 480: 155-166, 2022 01 01.
Artículo en Inglés | MEDLINE | ID: mdl-34780922

RESUMEN

P2Y purinoceptor 2 (P2RY2) is involved in the regulation of cell proliferation and apoptosis. The aim of this study was to explore the effects of P2RY2 on cerebral ischemia/reperfusion (I/R) injury and its molecular mechanism. Middle cerebral artery occlusion (MCAO) model in rats and OXYGEN and oxygen-glucose deprivation/reoxygenation (OGD/R) model in PC12 cells were established. P2RY2 expressions in I/R injury model in vitro and in vivo were up-regulated. In the OGD/R group, ROS level, cyto-CytC and mitochondrial fission factors expressions and cell apoptosis were increased, while SOD activity, mito-CytC and mitochondrial fusion factors expressions were decreased. P2RY2 overexpression could reverse these results. Up-regulated P2RY2 expression decreased Yes-associated protein (YAP) phosphorylation level, promote the nuclear translocation of YAP, and inhibit cell apoptosis, which can be reversed by YAP inhibitor verteporfin. The addition of PI3K/AKT inhibitor LY294002 could reverse the decrease of YAP phosphorylation level and cell apoptosis, and the increase of nuclear translocation caused by P2RY2 overexpression. Further in vivo studies validated that interference with P2RY2 increased the cerebral infarction area, decreased AKT expression, enhanced YAP phosphorylation, and inhibited the nuclear translocation of YAP. In conclusion, P2RY2 can alleviate cerebral I/R injury by inhibiting YAP phosphorylation and reducing mitochondrial fission.


Asunto(s)
Isquemia Encefálica , Daño por Reperfusión , Animales , Apoptosis , Isquemia Encefálica/tratamiento farmacológico , Infarto de la Arteria Cerebral Media/tratamiento farmacológico , Dinámicas Mitocondriales , Fosfatidilinositol 3-Quinasas/metabolismo , Fosforilación , Ratas , Receptores Purinérgicos P2Y2 , Daño por Reperfusión/tratamiento farmacológico
12.
Front Microbiol ; 13: 818358, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-35547118

RESUMEN

Phylogenetic analyses inferred from the nuc rDNA ITS1-5.8S-ITS2 (ITS) data set and the combined 2-locus data set [5.8S + nuc 28S rDNA (nLSU)] of taxa of Trechisporales around the world show that Sistotremastrum family forms a monophyletic lineage within Trechisporales. Bayesian evolutionary and divergence time analyses on two data sets of 5.8S and nLSU sequences indicate an ancient divergence of Sistotremastrum family from Hydnodontaceae during the Triassic period (224.25 Mya). Sistotremastrum family is characterized by resupinate and thin basidiomata, smooth, verruculose, or odontoid-semiporoid hymenophore, a monomitic hyphal structure, and generative hyphae bearing clamp connections, the presence of cystidia and hyphidia in some species, thin-walled, smooth, inamyloid, and acyanophilous basidiospores. In addition, four new species, namely, Trechispora dentata, Trechispora dimitiella, Trechispora fragilis, and Trechispora laevispora, are described and illustrated. In addition, three new combinations, namely, Brevicellicium daweishanense, Brevicellicium xanthum, and Sertulicium limonadense, are also proposed.

13.
Neurol Sci ; 31(2): 165-8, 2010 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-19957198

RESUMEN

Inflammation is a key component of Alzheimer's disease (AD), and we have examined the effect of two polymorphisms (-174G/C and -572C/G) in the promoter of the inflammatory cytokine interleukin-6 (IL-6) gene on risk of AD in 318 AD patients. Significant differences in genotype and allele frequencies of -572C/G IL-6 promoter polymorphism were observed between AD patients and controls. The GG genotype was associated with a decreased risk of developing AD (OR 0.423, 95% CI 0.200-0.894). Similarly, logistic regression analysis revealed that G allele was a protective factor for AD (OR 0.732, 95% CI 0.567-0.945). For -174G/C variability, no C variability was found in all the subjects. The frequency of the IL-6 -174G/C promoter polymorphism is very low or no variability in Henan Han population. The -572C/G polymorphism of IL-6 gene promoter region is associated with AD, and G allele is an independent protective factor for AD.


Asunto(s)
Enfermedad de Alzheimer/genética , Interleucina-6/genética , Polimorfismo Genético , Regiones Promotoras Genéticas , Anciano de 80 o más Años , Pueblo Asiatico/genética , China , Femenino , Frecuencia de los Genes , Predisposición Genética a la Enfermedad , Genotipo , Humanos , Modelos Logísticos , Masculino , Oportunidad Relativa , Análisis de Secuencia de ADN
14.
Neurol India ; 63(4): 631-3, 2015.
Artículo en Inglés | MEDLINE | ID: mdl-26238915
15.
Ying Yong Sheng Tai Xue Bao ; 31(5): 1511-1517, 2020 May.
Artículo en Zh | MEDLINE | ID: mdl-32530228

RESUMEN

The exogenous liquid introduction technology is an effective way to produce the value-added poplar wood with excellent pattern color. This technology was used to add the various concentrated active red dyeing solution (0.2%, 0.4% and 0.6%) into target trees of six-year-old 107 poplar (Populus ×euramericana cv. '74/76'). The photosynthetic gas exchange parameter and sap flow rate were measured by Li-6400 photosynthetic instrument and TDP stem flowmeter, respectively. We analyzed the relationship between photosynthetic parameters, sap flow rate and dye absorption, and the effects of exogenous dye solution on the photosynthetic physiology and sap flow characteristics. The results showed that exogenous dyeing solution significantly inhibited flow rate of poplar trunks. The 0.2% concentrated liquid was far less effective than others (0.4% and 0.6%). The net photosynthetic rate (Pn), stomatal conductance (gs) and transpiration rate (Tr) of poplars treated with different concentrated dyeing liquids were significantly lower than the control poplar. The intercellular carbon dioxide concentration (Ci) decreased first and then increased. The inhibitory effects of 0.4% and 0.2% concentrated dyeing solutions on photosynthesis were stronger than that of 0.6%. Dye absorption decreased with increasing dye concentration. The maximum liquid flow rate, Pn, gs and Tr were significantly negatively correlated with the dye content. The contents of chlorophyll (a+b), chlorophyll a and chlorophyll b in exogenous dyeing solution treatments were significantly lower than those of the control at the later stage. The concentration of dyeing solution and introduction time determined the amount of dye absorption. The dye solution 0.4%, which was introduced for three days, could ensure the appropriate dye absorption and reduce the inhibitory effect on the physiological activities of the poplar.


Asunto(s)
Fotosíntesis , Populus , Clorofila , Clorofila A , Hojas de la Planta , Árboles
16.
Am J Transl Res ; 12(10): 6975, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-33194088

RESUMEN

[This corrects the article on p. 2570 in vol. 12, PMID: 32655791.].

17.
Cell Cycle ; 19(10): 1132-1142, 2020 05.
Artículo en Inglés | MEDLINE | ID: mdl-32298206

RESUMEN

Nasal epithelial cells are the first barrier against allergen infiltration in allergic rhinitis (AR), and the relationship between nasal epithelial cells and mast cell-mediated hypersensitivity remains unclear. This study aimed to investigate the possible association between allergen-challenged nasal epithelial cells (AR-HNEpC) and mast cell degranulation in AR. Our data revealed that calcium influx and degranulation were increased in AR-HNEpC-co-cultured mast cells. Expression of IL-33, a factor that binds to ST2 receptors on mast cells and regulates their degranulation, was elevated in AR-HNEpC. Blocking IL-33/ST2 pathway activated autophagy and inhibited degranulation and inflammatory factor release in mast cells. Furthermore, PI3K/mTOR was increased in IL-33-treated mast cells. Inhibition on PI3K/mTOR pathway enhanced autophagy and inhibited degranulation. Analysis using an in vivo AR model supported the above findings. In conclusion, IL-33 from epithelial cells promotes degranulation of mast cells in AR through inhibition on ST2/PI3K/mTOR-mediated autophagy, which provides a potential therapeutic target for the disease.Abbreviations: AR: allergic rhinitis; IL: interleukin; TNF-α: tumor necrosis factor-alpha; INF-γ: interferon-gamma; HNEpC: human nasal epithelial cell line; ATCC: American Type Culture Collection; C48/80: compound 48/80; 3-MA: 3-methyladenine; qPCR: quantitative PCR; AR-HNEpC: dust mite allergen-treated nasal epithelial cells; IgE: immunoglobulin E; Atg7: autophagy-related gene 7.


Asunto(s)
Autofagia/genética , Degranulación de la Célula/genética , Células Epiteliales/metabolismo , Proteína 1 Similar al Receptor de Interleucina-1/metabolismo , Interleucina-33/metabolismo , Mastocitos/metabolismo , Fosfatidilinositol 3-Quinasas/metabolismo , Rinitis Alérgica/metabolismo , Serina-Treonina Quinasas TOR/metabolismo , Alérgenos/farmacología , Animales , Línea Celular , Modelos Animales de Enfermedad , Células Epiteliales/efectos de los fármacos , Humanos , Interleucina-33/genética , Pyroglyphidae/inmunología , Ratas , Ratas Sprague-Dawley , Proteínas Recombinantes/farmacología , Transducción de Señal/genética , Transfección
18.
Am J Transl Res ; 12(6): 2570-2584, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-32655791

RESUMEN

An impaired epithelial barrier is often observed in allergic rhinitis (AR), which facilitates the infiltration of allergens. The aim of this study was to investigate the role of autophagy in the impaired epithelial barrier in AR and the related signalling pathways. A human nasal epithelial cell line was treated with dust mite allergen (Derp1). Autophagy was evaluated by GFP-LC3 adenovirus transfection and measurement of autophagy-related proteins. Epithelial barrier function was evaluated by measuring tight junction protein expression, transepithelial electrical resistance, and fluorescein isothiocyanate-dextran (FD4) permeability. Next, miR-125b inhibitor, miR-125b mimics, shRNA targeting FoxP3, pcDNA3.1 expressing FoxP3, and inhibitor of C-X-C motif chemokine receptor type 4 (CXCR4) were used to investigate the roles of miR-125b, FoxP3, and CXCR4 in epithelial cell autophagy and epithelial barrier function. An in vivo AR model was generated by exposing rat nasal mucosa to an allergen. Derp1 exposure enhanced autophagy and impaired the epithelial barrier in epithelial cells. Upregulation of miR-125b expression led to enhanced autophagy and impaired epithelial barrier through inhibition of FoxP3. Derp1 exposure increased miR-125b expression by increasing the expression and activation of CXCR4, which downregulated FoxP3 expression and led to enhanced autophagy and an impaired epithelial barrier. In vivo analysis confirmed the role of the CXCR4/miR-125b/FoxP3 axis in the impaired epithelial barrier in AR. This study demonstrates that the CXCR4/miR-125b/FoxP3 axis may participate in the pathogenesis of AR by regulating autophagy in epithelial cells and dysfunction of the epithelial barrier.

19.
Zhonghua Zhong Liu Za Zhi ; 31(7): 541-5, 2009 Jul.
Artículo en Zh | MEDLINE | ID: mdl-19950705

RESUMEN

OBJECTIVE: To investigate the prognostic factors and influence of the number of lymph node metastases on survival and UICC-TNM classification in patients with thoracic esophageal cancer after curative resection. METHODS: From 1985 to 1990, 1224 patients were surgically treated for thoracic esophageal cancer. The patients who died within 30 days after operation were not included in this study. Fifteen factors possibly influencing survival of these patients were selected and analyzed. A multivariate analysis of these individual variables was performed by Cox proportional hazard model. According to the number of lymph node metastases (0, 1 and > or = 2), a new modification of the TNM classification was suggested: stage IIa (T2N0M0 and T3N0M0), stage IIb [T1N1M0 and T2N1(1)M0], stage IIIa [T2N1 (2)M0 and T3N1 (1) M0] and stage IIIb [T3N1 (2) M0 and T4N any M0]. RESULTS: According to multivariate analysis, lymph node metastases, depth of invasion, location of tumor, histological classification and length of the tumor were of prognostic significance (P < 0.01). There was obvious correlation between the rate of lymph node metastasis and the depth of invasion, length of tumor and grade of differentiation. The 5-year survival rate of the patients with 0, 1 and > or = 2 positive metastatic lymph nodes was 59.1%, 32.0% and 8. 9%, respectively. The 5-year survival rate of the patients with stage T2N1 M0 and stage T3N1 M0 was significantly higher in those with only one lymph node involved than in those with two or more lymph nodes involved (43.1% vs. 18.0% and 28.0% vs. 9.6%, P < 0.01). The 5-year survival rate of the modified stage IIa, IIb, IIIa and IIIb was 56.5%, 43.9%, 25.6% and 11.1%, respectively, with a statistically significant difference among different stages (P < 0.01). CONCLUSION: The lymph node metastasis is the most important prognostic factor for thoracic esophageal cancer after resection. The major influencing factors of lymph node metastasis are the depth of invasion, length of tumor and grade of differentiation. Therefore, the lymphadenectomy along with esophagectomy and subsequently combined modality therapy against lymph node metastasis is necessary to improve the 5-year survival rate. Our proposed new classification based on number of lymph node metastases (0, 1, > or = 2 positive nodes) is more applicable because it can well reflect the correlation between lymph node metastasis and the survival, and provides evidence for the modification of the currently used UICC TNM staging system for surgically treated thoracic esophageal cancer.


Asunto(s)
Carcinoma de Células Escamosas/cirugía , Neoplasias Esofágicas/cirugía , Ganglios Linfáticos/patología , Estadificación de Neoplasias/métodos , Adenocarcinoma/patología , Adenocarcinoma/cirugía , Adulto , Carcinoma de Células Escamosas/patología , Neoplasias Esofágicas/patología , Esofagectomía , Femenino , Estudios de Seguimiento , Humanos , Escisión del Ganglio Linfático , Ganglios Linfáticos/cirugía , Metástasis Linfática , Masculino , Persona de Mediana Edad , Invasividad Neoplásica , Modelos de Riesgos Proporcionales , Tasa de Supervivencia , Carga Tumoral
20.
Mol Neurobiol ; 56(5): 3522-3537, 2019 May.
Artículo en Inglés | MEDLINE | ID: mdl-30143969

RESUMEN

Alzheimer's disease (AD) represents a progressive neurodegenerative disorder characterized by distinctive neuropathological changes. Recently, long noncoding RNAs (lncRNAs) have become a key area of interest due to their potential in AD therapy. Hence, the aim of the current study was to investigate the effect of lncRNA SOX21-AS1 on neuronal oxidative stress injury in mice with AD via the Wnt signaling pathway by targeting FZD3/5. Microarray analysis was performed to screen AD-related differentially expressed genes (DEGs). Following verification of the target relationship between SOX21-AS1 and FZD3/5, the contents of OH-, malondialdehyde (MDA), superoxide dismutase (SOD), catalase (CAT), and glutathione peroxidase (GSH-Px) were determined, with the expressions of SOX21-AS1, FZD3/5, ß-catenin, cyclin D1, and 4-HNE in hippocampal neuron cells subsequently detected. Cell cycle distribution and apoptosis were evaluated. Bioinformatics analysis revealed that SOX21-AS1 was upregulated in AD, while highlighting the co-expression of SOX21-AS1 and FZD3/5 genes and their involvement in the Wnt signaling pathway. AD mice exhibited diminished memory and learning ability, increased rates of MDA, OH-, SOX21-AS1, 4-HNE, and elevated levels of hippocampal neuron cell apoptosis, accompanied by decreased levels of SOD, CAT, GSH-Px, FZD3/5, ß-catenin, and cyclin D1. Silencing of SOX21-AS1 resulted in decreased OH-, MDA contents, SOX21-AS1, and 4-HNE, and increased SOD, CAT, GSH-Px, FZD3/5, ß-catenin, and cyclin D1, as well as reduced apoptosis of hippocampal neuron cells. Taken together, the key findings of the present study demonstrated that silencing of lncRNA SOX21-AS1 could act to alleviate neuronal oxidative stress and suppress neuronal apoptosis in AD mice through the upregulation of FZD3/5 and subsequent activation of the Wnt signaling pathway.


Asunto(s)
Enfermedad de Alzheimer/genética , Receptores Frizzled/genética , Silenciador del Gen , Neuronas/patología , Estrés Oxidativo/genética , ARN Largo no Codificante/genética , Regulación hacia Arriba/genética , Vía de Señalización Wnt/genética , Enfermedad de Alzheimer/patología , Péptidos beta-Amiloides/metabolismo , Animales , Apoptosis/genética , Secuencia de Bases , Puntos de Control del Ciclo Celular/genética , Femenino , Células HEK293 , Hipocampo/patología , Hipocampo/ultraestructura , Humanos , Masculino , Memoria , Ratones , Neuronas/metabolismo , ARN Largo no Codificante/metabolismo , ARN Mensajero/genética , ARN Mensajero/metabolismo , Fase S/genética
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