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Wyświetlanie 1-2 z 2
Tytuł:
Current status of Helicobacter pylori associated human gastric cancer and the therapeutic approaches – A Review
Autorzy:
Pal, Partha
Powiązania:
https://bibliotekanauki.pl/articles/1189965.pdf
Data publikacji:
2016
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Helicobacter pylori
Gastric carcinoma
Peptic ulcers
Antibiotic treatment
Opis:
In the recent years one of the common causes of cancer related deaths in humans is associated with the development of gastric carcinoma leading to gastric cancer. It had long before reported that the potent agent that is intimately related with the gastric cancer is the infection of the bacterium Helicobacter pylori (H. pylori). H. pylori infection in humans is characterised by the development of acute peptic ulcers which creates a lots of gastroenterological symptoms. Co-existence of H. pylori in the human gastric environment is well adapted by the pathogen by evading the immune responses of the host. Gastric biopsy in patients suffering from H. pylori infection reported the development of gastric lesions having the chance to proceed towards development gastric cancer. Recently it was reported that eradication of the H. pylori colonization is not possible even after continued current antibiotic treatment over long periods and even combined regimes are unsuccessful.Moreover alterations of the genetic background of the host gastric cells were also reported along with infection of H. pylori, the primary concern for the evolution of the genetically transformed cells which is the hallmark for the development of malignancy. Clinical studies have reported the limited efficacy in decreasing the incidence of gastric carcinoma even after the eradication therapy has been completed for the bacterial colonization. Research based on the biopsy specimens obtained from conventional gastric endoscopy of affected patients has revealed some genetic or epigenetic alterations in the gastric mucosa. The cause of concern to human life lies in the fact that the number of sporadic cases of primary or metachronous gastric carcinoma has increased after successful eradication.The purpose of the present review is to assess the current status of the research based on the concept of development of gastric carcinoma in association with H. pylori infection in humans and to throw some light in the remedial measures against the pathogen which is a chronic burden in the well-being of the human society.
Źródło:
World Scientific News; 2016, 52; 162-180
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Micropropagation of Oldenlandia umbellata L. highly dye-yielding medicinal plant
Autorzy:
Ayyadurai, V.
Ramar, K.
Powiązania:
https://bibliotekanauki.pl/articles/1046554.pdf
Data publikacji:
2019
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Auxins
Cytokinins
Micropropagation and Hardening
Oldenlandia umbellata
Red dye
Ulcers
Opis:
This paper proposes an efficient in vitro propagation method for a red dye yielding and medicinal herb - Oldenlandia umbellata L. The plant is well-known in Siddha medicine for its styptic property. It is also used as drug for bronchial asthma, as a febrifuge and to treat poisonous bites and ulcers. Moreover, the red dye from its roots has been used in diverse applications since ancient times. These varied applications have increased the utilization and exploitation of this plant for medicinal and dye extraction purposes. Hence, a protocol for rapid propagation is standardized in the present study. Herein, the nodal and internodal of Oldenlandia umbellata L. were cultured on MS medium supplemented with cytokinins, 6-Benzylaminopurine (BAP), GA3, Kinetin (KIN), and auxins 1-Naphthaleneacetic acid NAA, 2, 4-Dichlorophenoxyacetic Acid (2, 4-D). Direct organogenesis was the intent. In doing so, the nodal and internodal explants showed maximum number of shoots in the combination of 2.5 mg/l BAP, 2.0 mg/l GA3, 0.5 mg/l. In addition, the explants growing on medium supplemented with 10 mg/l BAP was found to have generated more shoots. The developed shoots were then transferred for rooting to half strength MS medium fortified with IAA, IBA and NAA ranging from 2-5 mg/l. The best results were achieved on 2.0 mg/l 89.6 % (IBA) Indole-3- butyric acid. For hardening, the rooted plantlets were subsequently transferred to paper cups containing FYM, red soil and sand in the ratio of 1:2:1. They were then transferred to the growth chamber for acclimatization. After acclimatization, the plantlets were transfer for further development under field conditions. About 95% survival was achieved in the field.
Źródło:
World Scientific News; 2019, 137; 58-69
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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