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Anti-inflammatory, analgesic, and antioxidant activities of Pisonia aculeata: folk medicinal use to scientific approach.

Abstract：

CONTEXT:Pisonia aculeata leaves (Nyctagenaceae), a Folk medicinal plant used in the treatment of several inflammation, pain, and oxidative stress associated diseases. OBJECTIVE:To evaluate anti-inflammatory, analgesic, and antioxidant potential of crude methanol extract of P. aculeata leaves (MEPA). MATERIALS AND METHODS:Analgesic and anti-inflammatory activities of MEPA (250 and 500 mg/kg) were evaluated using writhing, formalin, hot plate, tail flick, carrageenan-induced paw edema test, and membrane stabilizing activity. Free radical scavenging activity, total phenolic and flavonoid contents of MEPA were also determined using standard methods. RESULTS:Oral administration of MEPA showed significant (p < 0.001) inhibition of paw edema, pronounced at 4 h and 5 h after carrageenan injection, and at 200 µg/mL exerts 77.67 and 38.51% protective effect against hypotonic solution and heat induced hemolysis, respectively. MEPA (250 and 500 mg/kg) produced 35.21 and 79.14% inhibition of acetic acid-induced writhing. Furthermore, MEPA (500 mg/kg) inhibited 49.19% early and 73.14% late phase of formalin-induced hypernociception. In contrast, a lower dose of MEPA did not prevent hot plate induced nociception, while in the tail immersion method, pronounced analgesic activity was observed between 1 and 4 h postdosing. The extract possesses significant in vitro antioxidant activity and a lipid peroxidation inhibition effect. Total phenolic and total flavonoid content in MEPA were 87.99 ± 0.87 mg GAE/g and 58.98 ± 0.01 mg QE/g, respectively. DISCUSSION AND CONCLUSION:Our findings confirmed the analgesic, anti-inflammatory and antioxidant activities of Pisonia aculeata leaves. Contents of flavonoids and phenolic compounds in extract could be correlated with its observed biological activities.

journal_name

Pharm Biol

journal_title

Pharmaceutical biology

authors

Sen S,Chakraborty R,Rekha B,Revathi D,Ayyanna SC,Hemalatha G,Kumar Reddy GA,Hyndavi S,Ikhyatha Babu PJ,Prakash PR,Sridhar C

doi

10.3109/13880209.2012.738331

subject

Has Abstract

pub_date

2013-04-01 00:00:00

pages

426-32

issue

eissn

1388-0209

issn

1744-5116

journal_volume

pub_type

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Anti-inflammatory, analgesic, and antioxidant activities of Pisonia aculeata: folk medicinal use to scientific approach.