Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 7 de 7
Filtrar
Adicionar filtros








Intervalo de ano
1.
Natural Product Sciences ; : 10-17, 2021.
Artigo em Inglês | WPRIM | ID: wpr-895086

RESUMO

The purpose of this study is to develop a new method of producing tienchi seng (notoginseng, Panax notoginseng) extracts featuring high concentrations of the ginsenoside Rg3, Rg5, and Rg6, special components of Korean red ginseng. The chemical transformation from ginseng saponin glycosides to prosapogenin was analyzed by HPLC. Tienchi seng was heat-processed at 100 o C and the optimum conditions were identified. The highest concentrations of total saponin (29.723%) and the ginsenoside Rg3 (1.769%), Rg5 (5.979%), and Rg6 (13.473%) were produced at 48 hours. Also, when tienchi seng was subjected to the ultrasonic thermal fusion (100 o C) process, the concentrations of total saponin (30.578%), ginsenoside Rg3 (2.392%), Rg5 (6.614%), and Rg6 (13.017%) were highest at 36 hours. On the other hand, the 2-hour heat-processed extract and 2-hour ultrasonic thermal fusion-processed extract did not contain ginsenoside Rg3, Rg5, and Rg6. The ultrasonic thermal fusion process had an extraction yield that was approximately 1.26 times greater than that of the heat process. These results indicate that the highly functional tienchi seng extracts created through the ultrasonic thermal fusion process are more industrially useful than those produced using the heat process.

2.
Natural Product Sciences ; : 10-17, 2021.
Artigo em Inglês | WPRIM | ID: wpr-902790

RESUMO

The purpose of this study is to develop a new method of producing tienchi seng (notoginseng, Panax notoginseng) extracts featuring high concentrations of the ginsenoside Rg3, Rg5, and Rg6, special components of Korean red ginseng. The chemical transformation from ginseng saponin glycosides to prosapogenin was analyzed by HPLC. Tienchi seng was heat-processed at 100 o C and the optimum conditions were identified. The highest concentrations of total saponin (29.723%) and the ginsenoside Rg3 (1.769%), Rg5 (5.979%), and Rg6 (13.473%) were produced at 48 hours. Also, when tienchi seng was subjected to the ultrasonic thermal fusion (100 o C) process, the concentrations of total saponin (30.578%), ginsenoside Rg3 (2.392%), Rg5 (6.614%), and Rg6 (13.017%) were highest at 36 hours. On the other hand, the 2-hour heat-processed extract and 2-hour ultrasonic thermal fusion-processed extract did not contain ginsenoside Rg3, Rg5, and Rg6. The ultrasonic thermal fusion process had an extraction yield that was approximately 1.26 times greater than that of the heat process. These results indicate that the highly functional tienchi seng extracts created through the ultrasonic thermal fusion process are more industrially useful than those produced using the heat process.

3.
Natural Product Sciences ; : 1-10, 2019.
Artigo em Inglês | WPRIM | ID: wpr-741652

RESUMO

The ginsenoside content was compared with wild simulated ginseng (Panax ginseng) collected every season at 11 wild simulated ginseng plantations in Korea. As a result, the total saponin of 7 years old wild simulated ginseng showed the highest content of 4.5% in spring sampling wild simulated ginseng, 2.0% in summer sampling wild simulated ginseng, 1.2% in winter sampling wild simulated ginseng and 1.0% in autumn sampling wild simulated ginseng. And also, the total saponin of 10 years old wild simulated ginseng showed the highest content of 3.9% in spring sampling wild simulated ginseng, summer sampling wild simulated ginseng (1.8%), winter sampling wild simulated ginseng (1.6%) and autumn sampling wild simulated ginseng (0.6%). Therefore, the total saponin of spring sampling wild simulated ginseng was about 4.5 – 6.5 times higher than that of autumn sampling wild simulated ginseng regardless of cultivation period.


Assuntos
Coreia (Geográfico) , Panax , Saponinas , Estações do Ano
4.
Journal of Rhinology ; : 134-139, 2016.
Artigo em Coreano | WPRIM | ID: wpr-187439

RESUMO

Cavernous sinus syndrome (CSS) is defined as the involvement of two or more of the third, fourth, fifth (V1, V2) or sixth cranial nerves or involvement of only one of them in combination with a neuroimaging-confirmed lesion in the cavernous sinus. Some cases of CSS are attributed to Tolosa-Hunt syndrome (THS), an idiopathic inflammatory disease of the cavernous sinus. THS is characterized by painful ophthalmoplegia due to granulomatous inflammation in the cavernous sinus. THS is a diagnosis of exclusion that requires a vigorous series of differential diagnoses, and corticosteroid therapy is known to dramatically resolve clinical findings of THS. We report a case of a patient with painful ophthalmoplegia associated with vision loss, which was suspected to be THS. This patient followed a relatively typical clinical course of THS on steroid pulse therapy. We emphasize the differential diagnosis of THS, its presentation, and treatment.


Assuntos
Humanos , Nervo Abducente , Seio Cavernoso , Diagnóstico , Diagnóstico Diferencial , Cefaleia , Inflamação , Oftalmoplegia , Síndrome de Tolosa-Hunt
5.
Korean Journal of Otolaryngology - Head and Neck Surgery ; : 423-426, 2011.
Artigo em Coreano | WPRIM | ID: wpr-651029

RESUMO

Low-grade nasopharyngeal papillary adenocarcinoma is an unusual nasopharyngeal tumor. This malignant tumor originates in the epithelium and exhibits adenocarcinomatous differentiation and indolent behavior. Macroscopically, these tumors are pedunculated polypoid masses that arise on the roof of the nasopharynx. Microscopically, they are characterized by papillary and glandular epithelial proliferation. We report a case of a 25-year-old woman who presented with a papillary adenocarcinoma on the roof of nasopharynx; in describing the case, we have focused on the histological features and endoscopic management of the tumor. The tumor was completely excised via nasal endoscopic approach. Immunohistochemical analysis of the tumor was performed based on a differential diagnosis of metastatic papillary thyroid carcinoma. The testing involved thyroid transcription factor-1, thyroglobulin, and epithelial membrane antigen analysis. The patient remained disease-free for over 6 months after the surgical excision performed via nasal endoscopic approach.


Assuntos
Adulto , Feminino , Humanos , Adenocarcinoma Papilar , Carcinoma , Diagnóstico Diferencial , Epitélio , Mucina-1 , Nasofaringe , Tireoglobulina , Glândula Tireoide , Neoplasias da Glândula Tireoide
6.
Korean Journal of Otolaryngology - Head and Neck Surgery ; : 773-775, 2009.
Artigo em Coreano | WPRIM | ID: wpr-646344

RESUMO

Orbital emphysema is an abnormal condition in which air is present within the orbit. It commonly occurs during or immediately after facial, nasal, or orbital trauma; however, in a few cases, the orbital emphysema occurs spontaneously without the presence of recent trauma. Subsequently, air can enter the soft tissue of orbit as a result of nose blowing, coughing or sneezing. Although sequelae are generally self limiting and resolve spontaneously, they are important because of potential complications such as loss of vision due to pressure effect. The following is a case report of a patient who developed unilateral orbital emphysema after nose blowing.


Assuntos
Humanos , Tosse , Enfisema , Nariz , Órbita , Espirro , Visão Ocular
7.
Korean Journal of Otolaryngology - Head and Neck Surgery ; : 770-772, 2009.
Artigo em Coreano | WPRIM | ID: wpr-646299

RESUMO

A myopericytoma is a rare mesenchymal neoplasm composed of oval to spindle-shaped myoid appearing cells with a striking tendency for concentric perivascular growth. The vast majority of lesion is in the dermis and subcutaneous tissue of extremities. Very few cases have been reported in other locations. We hereby present, with a literature review, a case of myopericytoma in the neck.


Assuntos
Derme , Extremidades , Pescoço , Greve , Tela Subcutânea
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA