ABSTRACT
A germinação das sementes pode ser fortemente influenciada pelas condições ambientais, afetando o estabelecimento de comunidades florísticas. As plantas daninhas, apesar das características de rusticidade e capacidade de suas sementes germinarem em condições de estresse ambiental, podem sofrer o efeito direto da presença de elementos tóxicos no substrato. O alumínio, presente em solos com pH baixo, pode interferir negativamente no processo germinativo de sementes de espécies cultivadas e também de plantas daninhas. No presente trabalho, objetivou-se estudar o efeito tóxico da presença de alumínio no substrato durante a germinação de sementes de Conyza. A germinação foi reduzida pela presença de alumínio no substrato, havendo decréscimos significativos a partir de 1,5cmol c dm-3 para as sementes de ambas as espécies, enquanto a velocidade de germinação foi prejudicada a partir da menor concentração (0,5cmol c dm-3) de alumínio testada. Esses resultados demonstram que as sementes de ambas as espécies são sensíveis à presença de alumínio no substrato de germinação.
Seed germination can be greatly influenced by environmental conditions, which affects the establishment of floristic communities. The weeds, although they had features as hardiness and its ability to germinate seeds under environmental stress conditions, may experience the direct effect of the presence of toxic elements in the substrate. Aluminum, present in soils with low pH can negatively impact the germination of seeds of crop species and weeds. This research aimed to study the toxic effect of aluminum presence in the substrate during seed germination of Conyza. Germination was reduced by the presence of aluminum in the substrate, with significant decreases from 1.5cmol c dm-3 for the seeds of both species. The germination rate was affected from the lower concentration of aluminum tested (0.5cmol c dm-3). These results demonstrate that the seeds of both species are sensitive to the presence of aluminum in substrate germination.
ABSTRACT
Objective To observe clinical effects of fleabane injection treating patients with unstable angina pectoris (UAP). Methods One hundred and sixty cases with UAP were randomly recruited into two groups: a control group (including 80 patients) received Asprin and Nitrate medication, and a treatment group(including 80 patients) received fleabane injection (20 mg/d, ivdrip) on the basis of the control group. Both groups were treated for two weeks. Results Compared with the control group, the treatment group showed significantly better clinical effects and electrocardiograph. Conclusion Fleabane injection has obvious clinical effects for treating patients with UAP.
ABSTRACT
Objective To observe the effect of fleabane injection on serum level of D-dimer, fibrinogen and hypersensitive C-reactive protein in patients with IgA nephropathy and to explore the mechanism of fleabane injection for treating IgA nephropathy. Methods 29 patients with IgA nephropathy were given fleabane injection together with routine treatment. Another group of 28 patients with IgA nephropathy were only treated with routine treatment as con-trol. Determinations of 24 hours urine protein output(24HPQ), serum level of D-dimer(D-D), Fibrinogen(Fib) and hypersensitive C-reactive protein (hsCRP) were carried out pre- and post-study. Results Significant decrease in 24HPQ , serum level of D-D, Fib and hsCRP were observed in both treatment group and control group(P <0. 01 ～0. 05), but more significant in treatment group as compared with control group ( P < 0. 05). Conclusion Flea-bane Injection plus routine treatment could significantly decrease 24HPQ in patients with IgA nephropathy, and this maybe contribute to regulation of D-D, Fib and hsCRP by fleabane injection.
ABSTRACT
OBJECTIVE:To observe the therapeutic effect of fleabane in the treatment of non-arteritis anterior ischemic optic neuropathy(AION).METHODS:38non-arteritis AION patients were divided into two groups at random:group A and group B were treated with fleabane and salvia miltiorrhiza respectively.RESULTS:The eyesight of both groups has been im-proved in a different degree and the improvement of visual field of group A surpassed that of group B.CONCLUSION:Flea-bane has certain amelioration and protection effects in the treatment of non-arteritis AION.
ABSTRACT
Objective To investigate the protective effective mechanism of Fleabane on PC12 cells impaired by hypoxia-reoxygention (HR).Methods The PC12 cells cutured in vitro were grouped as following:normal control (NC) group, the HR group,Fleabane 10?mol/L (E1)group, 20?mol/L (E2)group, 30?mol/L (E3)group. The livability of PC12 was measured after impaired by HR in groups HR and E1～E3. The expressions of Bcl-2 and Bax were also detected by Western Blot. Results (1)Compared with NC group,the survival rate of PC12 decreased in HR group(P