Swertia chirata, a Gentian species, can be traced through the medicinal history as a nontoxic and safe ethnomedicinal herb and has been mentioned in medical papyri to expel fever, relieve headache, to draw out inflammation and to stimulate CNS. The ethanolic root extract of Swertia chirata was chosen for pharmacological screening and analgesic and anti-inflammatory activities in animal models. ...

We predict a novel conformational regime for DNA, where denaturation bubbles form at the tips of plectonemes, and study its properties using coarse-grained simulations. For negative supercoiling, this regime lies between bubble-dominated and plectoneme-dominated phases, and explains the broad transition between the two observed in experiment. Tip bubbles cause localisation of plectonemes within...

Present study reports analgesic activity of petroleum ether, chloroform, ethyl acetate and methanolic extracts of leaves and seeds of Trigonella foenum-graecum Linn. (Fabaceae) using hot plate method for evaluation of central analgesic activity and acetic acid induced writhing test for evaluation of peripheral analgesic activity in mice.   All the extracts of Trigonella foenum-graecum ...

A new series of chalconesemicarbazones was synthesized and evaluated for anticonvulsant activity by MES Method. Most of the compounds were found to be more or comparable potent than the reference standard drug in the acetic acid-induced writhing test.

Uterine contraction-induced pain (UCP) represents a common and severe form of visceral pain. Nerve fibers that innervate uterine tissue express the transient receptor potential vanilloid channel 1 (TRPV1), which has been shown to be involved in the perception of UCP. The phosphoinositide-interacting regulator of TRP (Pirt) may act as a regulatory subunit of TRPV1. The intraperitoneal injection ...

The present study establishes the analgesic and anti-pyretic activities of the ethanolic extract of leaves of Catharanthus roseus in the models used. Since antipyretic and analgesic activities are commonly mentioned as characteristic of drugs or compounds which have an inhibitory effect on prostaglandin biosynthesis, the yeast induced hyperthermia in rat model was, therefore, employed to invest...

BACKGROUND Herbal medical compounds and their major constituent have been used in the management and treatment of opioid withdrawal syndrome and pain. This study was carried out to clarify the effect of curcumin, the major compound of turmeric, on morphine withdrawal syndrome in mouse model and its possible mechanisms of pain relieving activity by assessing in writhing test as a model of viscer...

The present study aimed to investigate the anti-inflammatory and anti-nociceptive potential of a hydroethanolic extract of Tamarindus indica L. leaves (HTI) along with its possible mode of action. The anti-inflammatory activity of HTI was estimated by carrageenan-induced hind paw oedema in male Wistar albino rats. Furthermore, HTI was assessed to determine its effects on membrane stabilization....

Purpose: To gain insight into the mechanisms of analgesic and anti-inflammatory activities of the root extract of Polygala tenuifolia. Methods: Polygala tenuifolia was extracted with 70 % methanol and tested for analgesic and antiinflammatory activities (0.1, 1, 10 and 100 mg/kg) using the following models: acetic acid-induced writhing, rat paw edema, bradykinin inhibtion with rat ileum, and pr...

Bunium persicum (Boiss.) is an economically important medicinal plant growing wildly in arid regions in Iran. The fruit of B. persicum is widely used in traditional Iranian medicine to control colic pain and dysmenorrhoea. The aim of the current study was to determine antinociceptive mechanisms of B. persicum essential oil using an acetic acid-induced writhing test as a model of visceral pain a...