The acqueous extract of Crocus sativus stigma reduce morphine tolerance
Authors
Abstract:
Background: Previous studies have indicated that administration of saffron extract could induced reward and reduces morphine reward as investigated by place preference and behavioral sensitization in male and female mice. In the present study, the effects of water extract of Crocus sativus on the acquisition and expression of tolerance to morphine-induced hyperalgesia in female N-MRI mice (20-25 g) were investigated. Matherila and Methods: Tail Flick technique was implicated in the present study. Morphine tolerance achived by morphine (50 mg/kg twice daily) injections for three consecutive days. On the 4th day of the experiments, morphine tolerance was assesed in animals by injection of effective dose of morphine (10 mg/kg). The extract of the C. sativus was administered during (development of tolerance) or after induction of morphine tolerance (expression). Results: Results showed that administration of morphine (1, 5, 10 and 20 mg/kg), induced a significant analgesia in animals. Administration of the plant extract (1, 2.5, 5, 10, 50 and 100 mg/kg) also produced analgesia which was statistically significant in dose 10 mg/kg of the extract. Injection of the plant extract (1, 2.5 and 5 mg/kg) in the test day, 30 min before morphine (10 mg/kg) reduced the expression of morphine tolerance. Administration of the extract (1, 2.5 and 5 mg/kg) during the induction of morphine tolerance, have not any effect on the development of morphine tolerance . Conclusion: It could be concluded that injection of the extract of C sativus can inhibit the expression but can not altered the acquisition of morphine tolerance. In addition, the extract could induced analgesia by it-self.
similar resources
Safety evaluation of saffron stigma (Crocus sativus L.) aqueous extract and crocin in patients with schizophrenia
OBJECTIVES Saffron is the stigma of Crocus sativus L., which has the potentials to play a role in the treatment of many diseases. Although many researches are now going on this precious spice, there are few data on saffron safety in human, especially in patients with chronic mental illnesses. This study aimed to evaluate the short-term safety and tolerability of both saffron and crocin (its maj...
full textEffect of Aqueous Extract of Crocus sativus L. on Morphine-Induced Memory Impairment
In the present study, the effect of aqueous extracts of saffron on morphine-induced memory impairment was investigated. On the training trial, the mice received an electric shock when the animals were entered into the dark compartment. Twenty-four and forty-eight hours later, the time latency for entering the dark compartment was recorded and defined as the retention trial. The mice were divide...
full textThe Effect of Chronic Administration of Saffron (Crocus sativus) Stigma Aqueous Extract on Systolic Blood Pressure in Rats
BACKGROUND Crocus sativus L. (saffron), which belongs to the Iridaceae family, is widely cultivated in Iran. Cardiovascular effects of saffron has been established in some studies but the effects of chronic administration of saffron (C. sativus) stigma aqueous extract on blood pressure has not been investigated. OBJECTIVES In this study the effects of saffron (C. sativus) stigma aqueous extra...
full textSafety evaluation of saffron stigma (Crocus sativus L.) aqueous extract and crocin in patients with schizophrenia
Objectives: Saffron is the stigma of Crocus sativus L., which has the potentials to play a role in the treatment of many diseases. Although many researches are now going on this precious spice, there are few data on saffron safety in human, especially in patients with chronic mental illnesses. This study aimed to evaluate the short-term safety and tolerability of both saffron and crocin (its ma...
full textCrocus sativus L. (Saffron) Stigma Aqueous Extract Induces Apoptosis in Alveolar Human Lung Cancer Cells through Caspase-Dependent Pathways Activation
Worldwide, lung cancer is the most common form of cancer. Saffron has been used in folk medicine for centuries. We investigated the potential of saffron to induce cytotoxic and apoptotic effects in lung cancer cells (A549). We also examined the caspase-dependent pathways activation of saffron-induced apoptosis against the A549 cells. A549 cells were incubated with different concentrations of sa...
full textAntinociceptive and anti-inflammatory effects of Crocus sativus L. stigma and petal extracts in mice
BACKGROUND Crocus sativus L. (saffron) is used in folk medicine, for example as an antiedematogenic agent. We aimed to evaluate the antinociceptive and anti-inflammatory activity of saffron extracts in mice. RESULTS We used aqueous and ethanolic maceration extracts of Crocus sativus L. stigma and petals. Antinociceptive activity was examined using the hot plate and writhing tests. The effect ...
full textMy Resources
Journal title
volume 13 issue None
pages 170- 178
publication date 2009-08
By following a journal you will be notified via email when a new issue of this journal is published.
Hosted on Doprax cloud platform doprax.com
copyright © 2015-2023