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1.
Genet Mol Res ; 11(4): 3649-57, 2012 Oct 04.
Artigo em Inglês | MEDLINE | ID: mdl-23096690

RESUMO

Mesona chinensis is an economically important agricultural crop, primarily cultivated for making grass jelly. It was originally discovered in South China. We examined 18 cultivars, including cultivars from Guangdong, Fujian, and Guangxi, China, Taiwan, and Indonesia, and a hybrid (a cross between cultivars from Indonesia and Guangdong), based on RAPD markers. The genetic similarity coefficient was calculated by NTSYS 2.10 and the clustering analysis was made by UPGMA. PCR amplification with 10 primers produced 163 bands; 94% of the amplified loci were polymorphic. The primers S208, S206, and S253 could completely distinguish all 19 samples by constructing a DNA fingerprint. Cluster analysis divided the 19 cultivars into five groups, with an overall genetic similarity coefficient of 0.68. Correlations were found among regional distributions, parental sources, and RAPD markers, demonstrating the rich genetic diversity of these 19 cultivars of M. chinensis. This study provides useful information for the classification, identification, and breeding of M. chinensis.


Assuntos
Impressões Digitais de DNA/métodos , Lamiaceae/genética , Técnica de Amplificação ao Acaso de DNA Polimórfico/métodos , China , Análise por Conglomerados , Primers do DNA/metabolismo , DNA de Plantas/genética , Genótipo , Filogenia , Polimorfismo Genético
2.
Zhongguo Zhong Xi Yi Jie He Za Zhi ; 15(4): 216-8, 1995 Apr.
Artigo em Chinês | MEDLINE | ID: mdl-7647543

RESUMO

We studied 128 patients with active peptic ulcer diagnosed by gastro-endoscopy four weeks after treatment with Xi Lei powder, PGE2 levels in both serum and gastro-duodenal mucosa were significantly higher than that before the treatment, the difference was significant (P < 0.01). The rate of negative conversion of Helicobacter pylori (HP) showed in 63.3% of cases. The distributed density of HP significantly reduced, the difference was significant (P < 0.01). These results indicated that Xi Lei powder could heal ulcer probably owing to the increasing of the PGE2 level in gastroduodenal mucosa, it inhibited the growth and reproduction of HP, and eliminated the HP, but did not inhibit the secretion of gastric acid and release the gastrin.


Assuntos
Dinoprostona/metabolismo , Infecções por Helicobacter/tratamento farmacológico , Helicobacter pylori , Materia Medica/uso terapêutico , Úlcera Péptica/tratamento farmacológico , Adolescente , Adulto , Idoso , Dinoprostona/sangue , Combinação de Medicamentos , Feminino , Infecções por Helicobacter/metabolismo , Humanos , Masculino , Pessoa de Meia-Idade , Úlcera Péptica/metabolismo , Úlcera Péptica/microbiologia , Pós
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