Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 10 de 10
Filtrar
1.
Zhong Nan Da Xue Xue Bao Yi Xue Ban ; 48(8): 1203-1209, 2023 Aug 28.
Artículo en Inglés, Chino | MEDLINE | ID: mdl-37875360

RESUMEN

OBJECTIVES: At present, there are many reports about the treatment of cricopharyngeal achalasia by injecting botulinum toxin type A (BTX-A) into cricopharyngeal muscle guided by ultrasound, electromyography or CT in China, but there is no report about injecting BTX-A into cricopharyngeal muscle guided by endoscope. This study aims to evaluate the efficacy of endoscopic BTX-A injection combined with balloon dilatation in the treatment of cricopharyngeal achalasia after brainstem stroke, and to provide a better method for the treatment of dysphagia after brainstem stroke. METHODS: From June to December 2022, 30 patients with cricopharyngeal achalasia due to brainstem stroke were selected from the Department of Rehabilitation Medicine, the First Hospital of Changsha. They were randomly assigned into a control group and a combined group, 15 patients in each group. Patients in both groups were treated with routine rehabilitation therapy, while patients in the control group were treated with balloon dilatation, and patients in the combined group were treated with balloon dilatation and BTX-A injection. Before treatment and after 2 weeks of treatment, the patients were examined by video fluoroscopic swallowing study, Penetration-aspiration Scale (PAS), Dysphagia Outcome Severity Scale (DOSS), and Functional Oral Intake Scale (FOIS) were used to assess the swallowing function. RESULTS: In the combined group, 1 patient withdrew from the treatment because of personal reasons. Two weeks after treatment, the scores of DOSS, PAS, and FOIS in both groups were better than those before treatment (all P<0.01), and the combined group was better than the control group (all P<0.001). The effective rate was 85.7% in the combined group and 66.7% in the control group, with no significant difference between the 2 groups (P>0.05). CONCLUSIONS: BTX-A injection combined with balloon dilatation is more effective than balloon dilatation alone in improving swallowing function and is worthy of clinical application.


Asunto(s)
Toxinas Botulínicas Tipo A , Infartos del Tronco Encefálico , Trastornos de Deglución , Acalasia del Esófago , Humanos , Trastornos de Deglución/etiología , Trastornos de Deglución/terapia , Acalasia del Esófago/complicaciones , Acalasia del Esófago/tratamiento farmacológico , Dilatación/efectos adversos , Toxinas Botulínicas Tipo A/uso terapéutico , Infartos del Tronco Encefálico/complicaciones , Infartos del Tronco Encefálico/tratamiento farmacológico , Resultado del Tratamiento
2.
Biomed Res Int ; 2021: 9987042, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-34095316

RESUMEN

Bioactive peptides attract growing concerns for their participation in multiple biological processes. Their roles in the pathogenesis of type 1 diabetes mellitus remain poorly understood. In this study, we used LC-MS/MS technology to compare the peptide profiling between pancreatic tissue of T1DM mice and pancreatic tissue of matched control groups. A total of 106 peptides were differentially expressed in T1DM pancreatic tissue, including 43 upregulated and 63 downregulated peptides. Most of the precursor proteins are insulin. Further bioinformatics analysis (GO and pathway analysis) indicated that the potential functions of these differential peptides were tightly related to regulation of endoplasmic reticulum stress. In conclusion, this study highlights new candidate peptides and provides a new perspective for exploring T1DM pathogenesis and clinical treatments.


Asunto(s)
Diabetes Mellitus Tipo 1/metabolismo , Diabetes Mellitus Tipo 1/patología , Páncreas/metabolismo , Animales , Cromatografía Liquida/métodos , Biología Computacional/métodos , Modelos Animales de Enfermedad , Expresión Génica/genética , Perfilación de la Expresión Génica/métodos , Insulina/metabolismo , Islotes Pancreáticos/metabolismo , Masculino , Ratones , Ratones Endogámicos C57BL , Páncreas/citología , Péptidos/análisis , Proteómica/métodos , Espectrometría de Masas en Tándem/métodos
3.
Eur J Med Chem ; 96: 92-7, 2015.
Artículo en Inglés | MEDLINE | ID: mdl-25874334

RESUMEN

A series of selenazolopyridine derivatives have been synthesized and characterized by X-ray diffraction, high resolution NMR and Mass spectrum. The in vitro anticancer activities of the synthetic compounds were screened against a panel of human cancer cell lines, human breast carcinoma MCF-7 cells, human liver carcinoma HepG2 cells and L02 normal cell line by MTT assay. By analyzing the structure-activity relationship among the synthetic compounds, it was found that 2-(phenylamino) selenazolo [5,4-b] pyridine, (PSeD, 7) had higher growth inhibitory effect on MCF-7 cells. The intracellular mechanism of cell death was evaluated by flow cytometric analysis and ROS assay, which revealed that PSeD could induce MCF-7 cells apoptosis by scavenging intracellular ROS. Taken together, we regard PSeD as an antioxidant which could inhibit cancer cell growth through induction of apoptosis.


Asunto(s)
Antineoplásicos/farmacología , Apoptosis/efectos de los fármacos , Depuradores de Radicales Libres/farmacología , Compuestos de Organoselenio/farmacología , Piridinas/farmacología , Especies Reactivas de Oxígeno/antagonistas & inhibidores , Antineoplásicos/síntesis química , Antineoplásicos/química , Ciclo Celular/efectos de los fármacos , Proliferación Celular/efectos de los fármacos , Células Cultivadas , Relación Dosis-Respuesta a Droga , Ensayos de Selección de Medicamentos Antitumorales , Depuradores de Radicales Libres/síntesis química , Depuradores de Radicales Libres/química , Células Hep G2 , Humanos , Células MCF-7 , Modelos Moleculares , Estructura Molecular , Compuestos de Organoselenio/síntesis química , Compuestos de Organoselenio/química , Piridinas/síntesis química , Piridinas/química , Especies Reactivas de Oxígeno/metabolismo , Relación Estructura-Actividad
4.
J Agric Food Chem ; 63(3): 787-94, 2015 Jan 28.
Artículo en Inglés | MEDLINE | ID: mdl-25579175

RESUMEN

Garlic (Allium sativum L.), which is a widely distributed plant, is globally used as both spice and food. This study identified five novel phenolic compounds, namely, 8-(3-methyl-(E)-1-butenyl)diosmetin, 8-(3-methyl-(E)-1-butenyl)chrysin, 6-(3-methyl-(E)-1-butenyl)chrysin, and Alliumones A and B, along with nine known compounds 6-14 from the ethanol extract of garlic. The structures of these five novel phenolic compounds were established via extensive 1D- and 2D-nuclear magnetic resonance spectroscopy experiments. The effects of the phenolic compounds isolated from garlic on the enzymatical or nonenzymatical formation of sulfur-containing compounds produced during garlic processing were examined. Compound 12 significantly reduced the thermal decomposition of alliin, whereas compound 4 exhibited the highest percentage of alliinase inhibition activity (36.6%).


Asunto(s)
Manipulación de Alimentos , Ajo/química , Fenoles/farmacología , Compuestos de Azufre/antagonistas & inhibidores , Compuestos Orgánicos Volátiles/antagonistas & inhibidores , Liasas de Carbono-Azufre/antagonistas & inhibidores , Cisteína/análogos & derivados , Cisteína/química , Calor , Espectroscopía de Resonancia Magnética , Estructura Molecular , Fenoles/análisis , Fenoles/química , Extractos Vegetales/química , Compuestos de Azufre/análisis , Compuestos Orgánicos Volátiles/química
5.
J Asian Nat Prod Res ; 16(3): 323-6, 2014.
Artículo en Inglés | MEDLINE | ID: mdl-24328717

RESUMEN

(R)-3-(allylthio)-2-((R)-3-(allylthio)-2-aminopropanamido)propanoic acid was isolated from the bulb of garlic, together with four known amino acids. Its structure was elucidated on the basis of 2D NMR and MS techniques. To the best of our knowledge, (R)-3-(allylthio)-2-((R)-3-(allylthio)-2-aminopropanamido)propanoic acid, which showed antibacterial activity against the Staphylococcus aureus antibiotic resistant strain, was the first example of dipeptide from garlic.


Asunto(s)
Antibacterianos/aislamiento & purificación , Dipéptidos/aislamiento & purificación , Medicamentos Herbarios Chinos/aislamiento & purificación , Ajo/química , Staphylococcus aureus Resistente a Meticilina/efectos de los fármacos , Antibacterianos/química , Antibacterianos/farmacología , Dipéptidos/química , Dipéptidos/farmacología , Medicamentos Herbarios Chinos/química , Medicamentos Herbarios Chinos/farmacología , Pruebas de Sensibilidad Microbiana , Estructura Molecular , Resonancia Magnética Nuclear Biomolecular , Raíces de Plantas/química , Estereoisomerismo
6.
Artículo en Inglés | MEDLINE | ID: mdl-24098194

RESUMEN

In the title compound, C13H11N3Se, the dihedral angle between the mean plane of the fused seleno-azolo-pyridine ring system and the p-toluidine ring is 14.260 (5)°. In the crystal, mol-ecules are linked by N-H⋯N hydrogen bonds, forming zigzag chains extending along the b-axis direction.

7.
Acta Crystallogr Sect E Struct Rep Online ; 68(Pt 4): o985, 2012 Apr 01.
Artículo en Inglés | MEDLINE | ID: mdl-22590036

RESUMEN

The title mol-ecule, C(16)H(18)Se(2), features a diselenide bridge between two 4-methyl-benzyl units, in which the central C-Se-Se-C torsion angle is 88.1 (3)°, while the two Se-Se-C-C fragments assume gauche conformations, with torsion angles of -51.8 (5) and 59.1 (4)°. The dihedral angle between the benzene rings is 78.9 (2)°.

8.
Acta Crystallogr Sect E Struct Rep Online ; 68(Pt 3): o921, 2012 Mar 01.
Artículo en Inglés | MEDLINE | ID: mdl-22412764

RESUMEN

The title mol-ecule, C(14)H(10)Cl(4)Se, features a selenide bridge between two dichloro-benzyl units. The dihedral angle between the two benzene rings is 107.9 (16)°. In the crystal, weak π-π face-to-face aromatic inter-actions are observed [centroid-centroid distance between two adjacent (but crystallographically different) phenyl rings = 3.885 (5) Å], providing some packing stability. Short Cl⋯Cl contacts of 3.41 (2) Šare observed.

9.
Acta Crystallogr Sect E Struct Rep Online ; 64(Pt 12): o2365, 2008 Nov 13.
Artículo en Inglés | MEDLINE | ID: mdl-21581337

RESUMEN

The title Schiff base compound, C(13)H(16)N(3)O(+)·PF(6) (-), was derived from the condensation of 2-hydroxy-benaldehyde with the ionic liquid 1-(2-amino-ethyl)-3-methyl-imidazolium hexa-fluoro-phosphate in an ethanol solution. The asymmetric unit comprises one cation and two PF(6) (-) anions. The dihedral angle between the aromatic and imidazole rings is 15.2 (2)°. An intra-molecular O-H⋯N hydrogen bond is found which generates an S(6) ring motif.

10.
Zhong Xi Yi Jie He Xue Bao ; 3(4): 282-5, 2005 Jul.
Artículo en Chino | MEDLINE | ID: mdl-16009106

RESUMEN

OBJECTIVE: To observe the effects of Xuanyinning Recipe (XYNR) in inhibiting SPC-A-1 cellular infiltration and on the pathomorphological changes of peritoneum in mice inoculated with sarcoma 180 (S(180)). METHODS: On the bases of isolated culture of mouse peritoneal mesothelial cells, we adjusted and added the human lung adenocarcinoma cell line SPC-A-1 into the double-layer culture medium to observe the number of clones formed. We also took out the peritoneum from the mice administered with three different dosages of XYNR and observed its pathomorphological changes with transmission electron microscope. RESULTS: In the in vitro experiment, the number of clones of SPC-A-1 in culture medium with XYNR (50 microg/ml) decreased distinctly. In the in vivo experiment, it was observed that, in the peritoneum from the XYNR-treated mice inoculated with S(180), the mesothelial cells arranged more and more regularly with the increasing of the dosage of XYNR, while the mesothelial cells in the peritoneum of the mice in the control group necrosed and arranged loosely. CONCLUSION: XYNR can inhibit the invasion of SPC-A-1 cells. It also can improve the loose arrangement of the peritoneal mesothelial cells in mice inoculated with S(180), so as to inhibit the malignant effusion.


Asunto(s)
Antineoplásicos Fitogénicos/farmacología , Medicamentos Herbarios Chinos/farmacología , Neoplasias Pulmonares/patología , Peritoneo/patología , Sarcoma 180/patología , Adenocarcinoma/patología , Animales , Línea Celular Tumoral , Epitelio/patología , Femenino , Masculino , Ratones , Trasplante de Neoplasias
SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA