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1.
Artículo en Inglés | MEDLINE | ID: mdl-34999568

RESUMEN

Artificial domestication during aquaculture practice has strongly shaped the physiological characteristics of Perca fluviatilis. Thus, revealing the genetic changes in domesticated P. fluviatilis will improve aquaculture and selective breeding. In this study, comparative analysis of the liver transcriptome, proteome, and physiological and biochemical indices of domesticated and wild P. fluviatilis was conducted. Our results indicated that the activity of lipase and the content of glucose were higher; however, the total antioxidant capacity and superoxide dismutase were lower in domesticated P. fluviatilis. Integrated analysis of "omics" data identified 174 and 127 genes and proteins that showed consistent upregulation and downregulation in domesticated P. fluviatilis, respectively. GO and KEGG enrichment of differentially expressed genes and proteins and the protein-protein interaction network indicated that energy metabolism (lipid and carbohydrate metabolism) was enhanced, and that signal transduction and the stress response were reduced in domesticated P. fluviatilis. This study revealed that artificial domestication may significantly shape the physiological changes in energy metabolism and stress resistance in domesticated P. fluviatilis, which makes them more adaptable to the artificial aquaculture environment, thereby promoting growth and development.


Asunto(s)
Percas , Animales , Hígado , Percas/metabolismo , Proteómica , Estrés Fisiológico , Transcriptoma
2.
Medicine (Baltimore) ; 98(23): e15980, 2019 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-31169734

RESUMEN

Owing to the special growth pattern of chordomas and the limited treatment options currently available, the treatment of chordoma still remains difficult. In this study, we hope to further clarify the relationship between surgical treatment and radiotherapy of chordoma and disease progression.All patients with a primary histopathological diagnosis of clival or spinal chordomas recorded in our institution between 1976 and 2017 were examined.A total of 60 patients (location: skull base/clival, n = 24; vertebral column, n = 5; sacrum, n = 31) had a mean follow-up time of 7.7 years (range 12 months-35 years). Compared with patients who received subtotal resection (n = 5, 5-year and 10-year survival = 61% and 39%, respectively), the annual survival rate of patients who received total resection (n = 55, 5-year and 10-year survival = 67%, respectively) was significantly higher. The overall 10-year survival rate (58%) of patients treated with surgery alone was significantly different from those treated with a combination of surgery and radiation (73%). The long-term prognosis of sacral chordoma was the worst (10-year survival rate = 48%).The best treatment strategy for improved long-term survival in chordoma was a combination of surgical resection and radiation therapy. Adjuvant radiotherapy for chordoma significantly improves disease-free survival, although the long-term survival benefit remains to be determined. A worse prognosis and poor long-term survival are seen in sacral chordomas.


Asunto(s)
Cordoma/mortalidad , Neoplasias de la Base del Cráneo/mortalidad , Neoplasias de la Columna Vertebral/mortalidad , Adulto , Cordoma/terapia , Fosa Craneal Posterior/patología , Femenino , Humanos , Masculino , Persona de Mediana Edad , Pronóstico , Radioterapia Adyuvante , Sacro/patología , Base del Cráneo/patología , Neoplasias de la Base del Cráneo/terapia , Neoplasias de la Columna Vertebral/terapia , Tasa de Supervivencia , Resultado del Tratamiento
3.
Medicine (Baltimore) ; 97(41): e12469, 2018 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-30313036

RESUMEN

RATIONALE: Chronic inflammatory demyelinating polyradiculoneuropathy (CIDP) is a disorder characterized by a symmetrical, sensorimotor involvement and slowly progressive onset peripheral neuropathy. Peripheral neuropathies have been reported in some central demyelination patients. However, the central nervous system focus in the CIDP patient can mimic neuromyelitis optica have not been recognized by most of us. PATIENT CONCERNS: The numbness and weakness of limbs about eight weeks. DIAGNOSES: Chronic inflammatory demyelinating polyradiculoneuropathy. INTERVENTIONS: Immunotherapy with intravenous immunoglobulins was applied to this patient. OUTCOMES: After 1 year follow-up, the results showed there was still slight numbness of all limbs, and he could walk slowly without help. Gastrocnemius muscle atrophy did not aggravate. LESSONS: So It is suggest that CIDP can combine with central lesions mimicking neuromyelitis optica. We should take the diagnosis of CIDP into consideration when we find focus in central nervous system.


Asunto(s)
Imagen por Resonancia Magnética , Polirradiculoneuropatía Crónica Inflamatoria Desmielinizante/diagnóstico por imagen , Humanos , Masculino , Persona de Mediana Edad
4.
Medicine (Baltimore) ; 97(36): e12207, 2018 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-30200131

RESUMEN

The treatment of clival chordoma remains highly challenging. This difficulty is enhanced by the very small likelihood of a successful complete surgical resection or nonsurgical treatment of chordoma. Additionally, no effective means of interdisciplinary treatment for chordoma have been identified. With this background, we analyzed data of patients who underwent multidisciplinary treatment for clival chordoma at our institution during the last 25 years.This retrospective study evaluated patients treated at a single center from 1992 to 2017.During the study period, 24 patients underwent 24 surgeries. Twenty-two surgical resections (including 1 initial surgery and 1 surgery for recurrence) were deemed maximally safe cyto-reductive resections (92%); the remaining 2 surgeries were deemed incomplete (8%), which were histologically confirmed in all but in 1 case (which involved radionecrosis). The complications were divided into endocrinologic, neurologic, and other complications. In 1 case (4%), surgery led to immediate dyspnea followed by death on the following day; in another case (4%), ischemic infarction led to sudden death. In 3 cases (13%), patients exhibited improvements of neurologic (visual or oculomotor) deficits that had been observed prior to surgery. The following new postoperative neurologic deficits were observed: oculomotor deficits in 4 cases, dizziness in 2 cases, and cranial nerve-attributed dysphagia in 3 cases. About 19 patients underwent adjuvant postoperative radiotherapy following the initial surgery (dose: 54.5 Gy in all cases). The mean and median follow-up durations were 50 ±â€Š53 and 48.5 months, respectively. A Kaplan-Meier analysis estimated a median survival duration of 50.2 months (95% confidence interval 27.9-72.4 months).These findings highlight the importance of interdisciplinary treatment strategies, particularly those combining maximally safe cyto-reductive tumor resection and adjusted radiotherapy and other treatment options, for patients with relatively good conditions.


Asunto(s)
Cordoma/cirugía , Neoplasias de la Base del Cráneo/cirugía , Adulto , Cordoma/diagnóstico por imagen , Cordoma/mortalidad , Cordoma/patología , Femenino , Estudios de Seguimiento , Humanos , Estimación de Kaplan-Meier , Masculino , Complicaciones Posoperatorias , Radioterapia Adyuvante , Estudios Retrospectivos , Neoplasias de la Base del Cráneo/diagnóstico por imagen , Neoplasias de la Base del Cráneo/mortalidad , Neoplasias de la Base del Cráneo/patología
5.
Medicine (Baltimore) ; 97(38): e12506, 2018 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-30235762

RESUMEN

Limb-girdle muscular dystrophy 2L (LGMD2L) is mainly characterized by late adult onset, atrophy of proximal muscles, chronic progressive and asymmetric weakness, accompanied by increased creatine kinase (CK) levels, dystrophic pathological changes and electromyography showing myogenic damage. To date, familial LGMD2L was reported in European countries and had not been reported in China.A careful investigation of the clinical manifestations, muscle performance imaging, biopsy, and target next-generation sequencing (NGS) technology was utilized to identify pathogenic genetic variants in a 4-generation pedigree that includes 6 affected individuals.The results revealed mild-to-moderate hypertrophy of bilateral gastrocnemii and slight weakness and atrophy in the proximal muscles of the lower limbs, with obviously increased serum creatine kinase levels. The symptoms were more serious in the male proband but were also observed in females. Obvious and symmetric atrophy and fat infiltration of posterior segments of the thigh was evident in muscle magnetic resonance imaging (MRI). The pathological changes included a small amount of atrophic and hypertrophic fibers, scattered necrotizing fibers, a small number of increased nuclei, inward migration, mild proliferation of interstitial connective tissue, and no inflammatory cell infiltration. The pathogenic allele was a c.220C > T mutation in the anoctamin 5 (ANO5) gene.The LGMD2L family was characterized by mild chronic myopathy and bilateral gastrocnemius hypertrophy with obviously increased CK levels. Pathological changes included atrophy of fibers with interstitial connective tissues hyperplasia. The pathogenic allele was a c.220C> T mutation in the ANO5 gene.


Asunto(s)
Anoctaminas/genética , Músculo Esquelético/patología , Distrofia Muscular de Cinturas/genética , Linaje , Alelos , Biopsia , China , Creatina Quinasa/sangre , Electromiografía , Femenino , Humanos , Hipertrofia/genética , Hipertrofia/patología , Imagen por Resonancia Magnética , Masculino , Persona de Mediana Edad , Músculo Esquelético/diagnóstico por imagen , Atrofia Muscular/genética , Atrofia Muscular/patología , Distrofia Muscular de Cinturas/diagnóstico por imagen , Distrofia Muscular de Cinturas/patología , Mutación
6.
Medicine (Baltimore) ; 97(25): e11128, 2018 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-29924012

RESUMEN

RATIONALE: Chordomas are malignant neoplasms derived from incomplete regression of notochordal tissue along the craniococcygeal axis.It is rare for Chordoma arising from the lumbar spine and the traditional long-term prognosis is typically poor. PATIENT CONCERNS: The persistent pain in the left side of the waist about 2 years. DIAGNOSES: Chordoma. INTERVENTIONS: The patient was treated with surgical resection of the total tumor, followed by the spinal internal fixation of L1 to L2 with pedicle screws. OUTCOMES: After 5 month follow-up,we find the recurrence in the original lesion.At the 15 month follow-up,the patient was dead after a lot of times revisit by various doctor. LESSONS: So It is suggest that the diagnosis should be carried out accurately at the early stage, the lesions and source of lesions should be cut away as broadly as possible, also the radiation and chemotherapy should be carried out after the operation as necessary.


Asunto(s)
Cordoma , Vértebras Lumbares , Recurrencia Local de Neoplasia , Osteotomía/métodos , Fusión Vertebral/métodos , Neoplasias de la Columna Vertebral , Anciano , Cordoma/patología , Cordoma/fisiopatología , Cordoma/cirugía , Resultado Fatal , Humanos , Vértebras Lumbares/diagnóstico por imagen , Vértebras Lumbares/patología , Región Lumbosacra/diagnóstico por imagen , Imagen por Resonancia Magnética/métodos , Masculino , Invasividad Neoplásica , Recurrencia Local de Neoplasia/patología , Recurrencia Local de Neoplasia/fisiopatología , Estadificación de Neoplasias , Neoplasias de la Columna Vertebral/patología , Neoplasias de la Columna Vertebral/fisiopatología , Neoplasias de la Columna Vertebral/cirugía , Tomografía Computarizada por Rayos X/métodos
7.
BMC Neurol ; 17(1): 123, 2017 Jun 29.
Artículo en Inglés | MEDLINE | ID: mdl-28662631

RESUMEN

BACKGROUND: Systemic lupus erythematosus (SLE) is an autoimmune inflammatory disorder characterized by multiple affected systems. More than half of SLE patients will suffer from neuropsychiatric lupus erythematosus (NPSLE) during the course of their disease. Although nearly half of the NPSLE patients have normal MRI manifestations, the abnormalities found in the remainder can be located anywhere in the brain, and especially in the subcortical white matter of the frontal and temporal lobe. However, NPSLE involving the medulla oblongata and spinal cord which presents as the "owl's eye" sign has to our best knowledge not been reported to date. CASE PRESENTATION: A 19-year-old girl presented at our hospital with a 7-day history of fever and headache since a one day's exertion, accompanied by 2 days of weakness. The patient had slurred speech. Neurological examination revealed the presence of horizontal nystagmus and a limitation of bilateral eye movement when looking up and down. At the same time, she showed difficulty in raising the jaw, accompanied by a weak pharyngeal reflex. Muscle strength was remarkably decreased in all four extremities: the MRCS grade of the upper limbs was 4/5, while in the lower limbs it was 0/5. Hypotonia was apparent in the lower extremities. Regarding subjective sensation, the patient appeared to be experiencing an increased sense of pain in the whole body, and especially in the cervical region, abdomen, and feet. An examination of shallow reflex documented the reinforcement of the abdominal reflex. Deep tendon reflexes were symmetric: absent in lower, normal in upper extremities. The patient also had a stiff neck with a positive Kernig's sign. The laboratory examination showed elevated C - reactive protein and rheumatoid factor, as well as complement components 3 and 4. Symptomatic treatments were applied, but she did not respond well, after which we did immunological laboratory examinations. The results showed the presence of anti-nRNP/Sm, anti-dsDNA and anti-AMA M2 antibodies. An MRI scan and enhancement of the cervical and thoracic regions displayed abnormal signs in the medulla and bilateral anterior horn of the lower thoracic spine. Following the exclusion of other possible diseases, neuropsychiatric lupus was diagnosed. High-dose intravenous gamma-globulin combined with methylprednisolone gradually improved her condition. CONCLUSION: We report the first case of NPSLE presenting with medulla oblongata and spinal cord involvement, manifesting as the "owl's eye" sign in MRI.


Asunto(s)
Lupus Eritematoso Sistémico/complicaciones , Vasculitis por Lupus del Sistema Nervioso Central/diagnóstico , Imagen por Resonancia Magnética/métodos , Encéfalo/patología , Femenino , Cefalea/etiología , Humanos , Bulbo Raquídeo , Metilprednisolona/uso terapéutico , Sustancia Blanca/patología , Adulto Joven
8.
ACS Nano ; 8(11): 11172-80, 2014 Nov 25.
Artículo en Inglés | MEDLINE | ID: mdl-25358101

RESUMEN

A nanoscale-driven crystal growth of magnetic hexaferrites was successfully demonstrated at low growth temperatures (25-40% lower than the temperatures required often for crystal growth). This outcome exhibits thermodynamic processes of crystal growth, allowing ease in fabrication of advanced multifunctional materials. Most importantly, the crystal growth technique is considered theoretically and experimentally to be universal and suitable for the growth of a wide range of diverse crystals. In the present experiment, the conical spin structure of Co2Y ferrite crystals was found to give rise to an intrinsic magnetoelectric effect. Our experiment reveals a remarkable increase in the conical phase transition temperature by ∼150 K for Co2Y ferrite, compared to 5-10 K of Zn2Y ferrites recently reported. The high quality Co2Y ferrite crystals, having low microwave loss and magnetoelectricity, were successfully grown on a wide bandgap semiconductor GaN. The demonstration of the nanostructure materials-based "system on a wafer" architecture is a critical milestone to next generation microwave integrated systems. It is also practical that future microwave integrated systems and their magnetic performances could be tuned by an electric field because of the magnetoelectricity of hexaferrites.

9.
PLoS One ; 8(7): e69251, 2013.
Artículo en Inglés | MEDLINE | ID: mdl-23935966

RESUMEN

Formation and selection of multiarmed spiral wave due to spontaneous symmetry breaking are investigated in a regular network of Hodgkin-Huxley neuron by changing the excitability and imposing spatial forcing currents on the neurons in the network. The arm number of the multiarmed spiral wave is dependent on the distribution of spatial forcing currents and excitability diversity in the network, and the selection criterion for supporting multiarmed spiral waves is discussed. A broken spiral segment is measured by a short polygonal line connected by three adjacent points (controlled nodes), and a double-spiral wave can be developed from the spiral segment. Multiarmed spiral wave is formed when a group of double-spiral waves rotate in the same direction in the network. In the numerical studies, a group of controlled nodes are selected and spatial forcing currents are imposed on these nodes, and our results show that l-arm stable spiral wave (l = 2, 3, 4,...8) can be induced to occupy the network completely. It is also confirmed that low excitability is critical to induce multiarmed spiral waves while high excitability is important to propagate the multiarmed spiral wave outside so that distinct multiarmed spiral wave can occupy the network completely. Our results confirm that symmetry breaking of target wave in the media accounts for emergence of multiarmed spiral wave, which can be developed from a group of spiral waves with single arm under appropriate condition, thus the potential formation mechanism of multiarmed spiral wave in the media is explained.


Asunto(s)
Modelos Neurológicos , Redes Neurales de la Computación , Neuronas/fisiología , Algoritmos , Animales , Humanos
10.
ACS Nano ; 7(4): 3447-56, 2013 Apr 23.
Artículo en Inglés | MEDLINE | ID: mdl-23473343

RESUMEN

We report growth of various phase architectures of self-assembled BiFeO3-CoFe2O4 (BFO-CFO) thin films on differently oriented SrTiO3 (STO) substrates. CFO forms segregated square, stripe, and triangular nanopillars embedded in a coherent BFO matrix on (001)-, (110)-, and (111)-oriented STO substrates, respectively. Nanostructures with an aspect ratio of up to 5:1 with a prominent magnetic anisotropy were obtained on both (001) and (110) STO along out-of-plane and in-plane directions. Magnetic easy axis rotation from in-plane to out-of-plane directions was realized through aspect ratio control. An intractable in-plane anisotropy was fixed in CFO on (111) STO due to the triangular shape of the ferromagnetic phase nanopillars. These studies established a detailed relationship of magnetic anisotropy with specific shape and dimensions of ordered magnetic arrays. The results suggest a way to effectively control the magnetic anisotropy in patterned ferromagnetic oxide arrays with tunable shape, aspect ratio, and elastic strain conditions of the nanostructures.


Asunto(s)
Bismuto/química , Cobalto/química , Cristalización/métodos , Compuestos Férricos/química , Membranas Artificiales , Nanoestructuras/química , Nanoestructuras/ultraestructura , Anisotropía , Sustancias Macromoleculares/química , Campos Magnéticos , Ensayo de Materiales , Conformación Molecular , Tamaño de la Partícula , Propiedades de Superficie
11.
J Biomed Opt ; 16(1): 016003, 2011.
Artículo en Inglés | MEDLINE | ID: mdl-21280909

RESUMEN

Photodynamic therapy is a promising cancer treatment that involves activation of photosensitizer by visible light to create singlet oxygen. This highly reactive oxygen species is believed to induce cell death and tissue destruction in PDT. Our approach used a near-infrared area CCD with high quantum efficiency to detect singlet oxygen by its 1270-nm luminescence. Two-dimensional singlet oxygen images with its near-infrared luminescence during photosensitization could be obtained with a CCD integration time of 1 s, without scanning. Thus this system can produce singlet oxygen luminescence images faster and achieve more accurate measurements in comparison to raster-scanning methods. The experimental data show a linear relationship between the singlet oxygen luminescence intensity and sample concentration. This method provides a detection sensitivity of 0.0181 µg∕ml (benzoporphyrin derivative monoacid ring A dissolved in ethanol) and a spatial resolution better than 50 µm. A pilot study was conducted on a total of six female Kunming mice. The results from this study demonstrate the system's potential for in vivo measurements. Further experiments were carried out on two tumor-bearing nude mice. Singlet oxygen luminescence images were acquired from the tumor-bearing nude mouse with intravenous injection of BPD-MA, and the experimental results showed real-time singlet oxygen signal depletion as a function of the light exposure.


Asunto(s)
Mediciones Luminiscentes/métodos , Neoplasias Experimentales/tratamiento farmacológico , Neoplasias Experimentales/metabolismo , Fármacos Fotosensibilizantes/uso terapéutico , Porfirinas/uso terapéutico , Oxígeno Singlete/análisis , Animales , Línea Celular Tumoral , Femenino , Rayos Infrarrojos , Masculino , Ratones , Ratones Desnudos , Neoplasias Experimentales/patología , Verteporfina
12.
Guang Pu Xue Yu Guang Pu Fen Xi ; 28(8): 1891-4, 2008 Aug.
Artículo en Chino | MEDLINE | ID: mdl-18975827

RESUMEN

The cold-water and boiled-water soaked scrophularia soups have been prepared. The emission and excitation spectra of each scrophularia soup under different conditions have been measured at room temperature. The pH values of the different scrophularia soups have been also detected. There are obvious differences between the cold-water soaked scrophularia soup and the boiled-water soaked scrophularia. For both soups the emission wavelength increases with the wavelength of the excitation, but the peaks of the emission spectra for cold-water and boiled-water soaked scrophularia soup are different, which are 441 and 532 nm, respectively. Excitation spectrum has double peaks in the cold-water soaked scrophularia soup while only one peak with longer wavelength in the boiled-water soaked one. The pH value changes from 5.5 to 4.1. According to the organic admixture fluorescence mechanism we analyzed the reasons of the experimental results. Through heating, the interaction in different fluorescence molecular and the energy transfer process in the same fluorescence molecular become more active, and the conjugate structures and the generation of hydrogen bonds, increase. The fluorescence measurement is of value for the scrophularia pharmacology analysis and provides an analytical method for the quality identification of scrophularia soup.


Asunto(s)
Medicamentos Herbarios Chinos/análisis , Scrophularia/química , Solventes/análisis , Espectrometría de Fluorescencia , Frío , Medicamentos Herbarios Chinos/química , Calor , Modelos Químicos , Solventes/química , Tensoactivos
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