| Title |
A new triterpene and an antiarrhythmic liriodendrin from Pittosporum brevicalyx
|
|---|---|
| Published in |
Archives of Pharmacal Research, December 2010
|
| DOI | 10.1007/s12272-010-1206-1 |
| Pubmed ID | |
| Authors |
Chun Feng, Bo-Gang Li, Xiao-Ping Gao, Hua-Yi Qi, Guo-Lin Zhang |
| Abstract |
A new triterpene, 21-O-senecioyl-R(1)-barrigenol (1) and 13 known compounds were isolated from the ethanol extracts of the leaves and bark of Pittosporum brevicalyx (Oliv.) Gagnep. Their structures were elucidated based on spectral data. The antiarrhythmic action of one furofuran lignan, liriodendrin (2), was tested on a model of CaCl(2)-induced arrhythmia and compared with the effect of verapamil. The prophylactic administration of liriodendrin (2) was effective in prolonging latency of arrhythmia and reducing the occurrence of ventricular fibrillation from 75% to 25%. The overall mortality rate was significantly reduced by the prophylactic administration of liriodendrin from 87.5% to 25%. The antiarrhythmic effect of liriodendrin (5.0 mg/kg) was similar to that of verapamil (1.05 mg/kg). Thus, liriodendrin may be a potent suppressor of CaCl(2)-induced arrhythmias. |
Mendeley readers
The data shown below were compiled from readership statistics for 10 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Unknown | 10 | 100% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Master | 2 | 20% |
| Researcher | 2 | 20% |
| Other | 1 | 10% |
| Professor | 1 | 10% |
| Student > Doctoral Student | 1 | 10% |
| Other | 2 | 20% |
| Unknown | 1 | 10% |
| Readers by discipline | Count | As % |
|---|---|---|
| Chemistry | 3 | 30% |
| Pharmacology, Toxicology and Pharmaceutical Science | 2 | 20% |
| Biochemistry, Genetics and Molecular Biology | 1 | 10% |
| Environmental Science | 1 | 10% |
| Medicine and Dentistry | 1 | 10% |
| Other | 1 | 10% |
| Unknown | 1 | 10% |
Attention Score in Context
This research output has an Altmetric Attention Score of 3. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 19 June 2017.
All research outputs
#7,454,951
of 22,790,780 outputs
Outputs from Archives of Pharmacal Research
#366
of 1,294 outputs
Outputs of similar age
#54,346
of 180,791 outputs
Outputs of similar age from Archives of Pharmacal Research
#5
of 10 outputs
Altmetric has tracked 22,790,780 research outputs across all sources so far. This one is in the 44th percentile – i.e., 44% of other outputs scored the same or lower than it.
So far Altmetric has tracked 1,294 research outputs from this source. They receive a mean Attention Score of 4.3. This one is in the 28th percentile – i.e., 28% of its peers scored the same or lower than it.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 180,791 tracked outputs that were published within six weeks on either side of this one in any source. This one is in the 27th percentile – i.e., 27% of its contemporaries scored the same or lower than it.
We're also able to compare this research output to 10 others from the same source and published within six weeks on either side of this one. This one has scored higher than 5 of them.