The effect of olive cream on pain and healing of caesarean section wounds: a randomised controlled clinical trial.

OBJECTIVE: This study was performed to determine the effect of olive cream on the severity of pain and healing of caesarean section wounds. METHOD: This study is a parallel randomised clinical trial that was conducted on women who had caesarean sections at Ayatollah Taleghani Hospital in Arak, Iran. Women were assigned to intervention, placebo and control groups by a block randomisation method. Women in the intervention and placebo groups were asked to use olive cream and placebo cream, respectively, twice a day from the second day after surgery to the tenth day. The wound healing score and pain intensity score were assessed using the REEDA and VAS scales, respectively, before and at the end of the intervention. RESULTS: The intervention group consisted of 34 women, the placebo group of 34 women and the control group of 35 women. We found a statistically significant difference between the intervention and placebo groups, intervention and control groups, and placebo and control groups in terms of the pain intensity (p<0.05 in all three cases). Also, we found a statistically significant difference between the intervention and placebo groups, and intervention and control groups in terms of the scores of wound healing on the tenth day after surgery (p<0.05 in both cases). CONCLUSION: Olive cream can be effective in relieving pain and enhancing caesarean section wound healing, and since no specific side effects were reported, the use of olive cream is recommended.

Ameliorating Effects of Dorema ammoniacum on PTZ-Induced Seizures and Epileptiform Brain Activity in Rats.

The objective of the current study was to investigate the anti-epileptogenic and anticonvulsant effects of Dorema ammoniacum gum, which is used in Iranian traditional medicine for the treatment of seizures. Animals received pentylenetetrazol (IP, 30 mg/kg/48 h) for inducing seizures. Five different seizure stages were evaluated for 20 min and parameters including maximum seizure stage, the latency to the onset of stage 4, stage 4 duration, and seizure duration were measured. D. ammoniacum (50 and 100 mg/kg) or its vehicle was administered 30 min before or after pentylenetetrazol injection in different groups. In addition, the effective dose of D. ammoniacum (100 mg/kg) on different seizure stages was compared with the common antiseizure drug phenobarbital. In another set of experiments, we investigated the effective dose of D. ammoniacum on fully kindled animals in which an interictal electroencephalogram was recorded by superficial electrodes placed on the skull. The results showed that D. ammoniacum administration, before and after pentylenetetrazol injections, significantly decreased seizure stage, seizure duration, stage 4 duration, and 1/stage 4 latency. The anti-epileptogenic effect of D. ammoniacum was about 50 to 60% of phenobarbital. In addition, D. ammoniacum significantly decreased seizure stage, seizure duration, stage 4 duration, and 1/stage 4 latency when administered to fully kindled animals but had no effect on the power of EEG sub-bands. These results indicate that D. ammoniacum has anti-epileptogenic and anticonvulsant effects in a chemical kindling model of seizures.

Effect of a Persian medicine preparation, Ma'aljobon, on constipation in patients with hypertension.

BACKGROUND: Constipation is a common and prevalent digestive problem. Forcing and straining due to constipation may have a negative effect on some parts of the body, including the heart. The aim of the study was to evaluate the effect of Ma'aljobon (a kind of whey) on functional constipation in hypertensive patients. MATERIALS AND METHODS: The present double-blind, placebo-controlled randomized clinical trial was a part of the study about the effect of Ma'aljobon on stage 1 hypertension, performed in 2017-2018. Hypertensive patients accompanying constipation were included in the study. Patients were randomly divided into two groups: Group A (n = 19) received 25 g of Ma'aljobon powder and Group B (n = 22) received 25 g of maltodextrin powder, twice a day for 6 weeks. The number and quality of defecation during a day were evaluated at baseline and at the end of the study within and between groups. Data were analyzed by SPSS software (version: 17) using Chi-square or Fisher's exact test. P <0.05 was considered as significant level. RESULTS: Forty-one patients had inclusion criteria, of whom 34 patients completed the study (19 in Group A and 15 in Group B). The mean ± standard deviation age of patients was 53.86 ± 8.92 years (range: 34-80 years). Before intervention, there was no significant difference between the two groups with respect to constipation; however, after 6 weeks' treatment, the frequency of constipation was significantly different between groups (P < 0.001). At the end of 6th week, constipation in the Group A was improved completely in terms of the number of defecation and stool consistency; but, in the Group B, eight (53.33%) patients still suffered from constipation (P < 0.001). No specific complications were reported in both groups. CONCLUSION: Ma'aljobon can improve constipation in hypertensive patients without any adverse effect.

Medicinal Herbs in Iranian Traditional Medicine for Learning and Memory.

BACKGROUND: A few factors such as age, stress, and emotions may lead to impaired learning, memory loss, amnesia, and dementia or threats like schizophrenia and Alzheimer's disease (AD). Iranian traditional medicine (ITM) recommends some herbs and herbal preparations for the treatment or prevention of CNS problems. METHODS: In this study, scientific evidence related to the effectiveness of ITM herbal medicine on memory, learning and AD is reviewed. The scientific evidence of plant efficacy was searched in electronic databases including PubMed, Scopus, SID, Science Direct, and Google Scholar by keywords such as memory, Alzheimer, amnesia, learning and scientific plant names from 1969 to 2014. RESULTS: The findings of this study confirmed the effectiveness of certain ITM medicinal plants on enhancing memory and learning or in the treatment/prevention of amnesia and AD. Some ITM plants like Melissa officinalis, Crocus sativus and Nigella sativa showed improving effects on memory and the treatment of AD in clinical trials. In some cases, active principles responsible for the efficacy of these plants on memory were also determined. DISCUSSION: Most of the studies on ITM plants were designed in animal models and a few herbs were evaluated in clinical trials on AD. Furthermore, there are insufficient or no investigations on certain herbal medicines used in ITM to confirm their effectiveness on memory and learning. Therefore, further experimental and clinical studies are necessary to evaluate the effectiveness of these plants on memory and AD as well as determining their active components.

The therapeutic effect of alcoholic extract of Fumaria parviflora on high-fat diet-induced nonalcoholic fatty liver in rats: an animal experiment.

Background and purpose: Nonalcoholic fatty liver disease (NAFLD) is a growing problem with a significant burden. Lifestyle modification is the recommended treatment, but researchers are exploring other options. This study focused on the effects of Fumaria parviflora (FP) extracts on NAFLD induced by a high-fat diet in rats. Experimental approach: Thirty-five 10-week-old male Wister-Albino rats were divided into seven groups: normal diet control, high fat diet control, high fat diet with oral normal saline gavage, high fat diet with oral Atorvastatin gavage, and three groups receiving high fat diet with FP extract in 200 mg/kg, 400 mg/kg, and 700 mg/kg.Blood samples of rats were used for the measurement of total cholesterol (TC), low-density lipoprotein (LDL), high-density lipoprotein (HDL), triglyceride (TG), alanine aminotransferase (ALT), aspartate aminotransferase (AST) and alkaline phosphatase (ALP).1×1 cm Liver biopsies were taken, stained with Trichrome Stain (Masson) and Hematoxylin and eosin (H&E) stain for evaluation by a pathologist. Findings/results: Lab results showed that FP extract inhibits weight gain, has positive effects on triglyceride and alkaline phosphatase levels, and reduces hepatocyte ballooning and inflammation in rats. Conclusion: FP extract may lower liver enzymes and have a positive impact on triglyceride, LDL, and HDL levels in rats with NAFLD.

The effect of Pimpinella Anisum herbal tea on human milk volume and weight gain in the preterm infant: a randomized controlled clinical trial.

BACKGROUND AND AIMS: Human milk supports pre-term infants to thrive. Yet human milk production can be inhibited when infants are born prematurely. Pimpinella Anisum has been evidenced to increase milk production and infant weight gain in previous animal studies. The present study aimed to determine the effect of Pimpinella Anisum herbal tea on human milk volume and preterm infant weight in human populations for the first time. METHODS: Human milk supports pre-term infants to thrive. Yet human milk production can be inhibited when infants are born prematurely. Pimpinella Anisum has been evidenced to increase milk production and infant weight gain in previous animal studies. The present study aimed to determine the effect of Pimpinella Anisum herbal tea on human milk volume and preterm infant weight in human populations for the first time. RESULTS: There was a statistically significant difference in terms of milk volume in the first, third, fourth, fifth, sixth and seventh days between the three groups of intervention, placebo, and control (p < 0.05). On the first day, the mean volume of pumped milk in the intervention group was significantly higher than the control group (p = 0.008). On the second day, there was no statistically significant difference between groups. On the third, fourth, fifth, sixth and seventh days, the mean volume of pumped milk in the intervention group was significantly higher than the placebo and control groups (p < 0.05). There was no statistically significant difference in terms of preterm infant weight on days 0, 3 and 7 between the three groups. CONCLUSION: The use of Pimpinella Anisum or 'Anise' tea can increase the volume of human milk and since no specific side effects have been reported in its use, it may be incorporated easily, cheaply, and effectively in practice where appropriate to the benefit of preterm infant nutrition worldwide.

The effect of orally consumed Lactuca sativa syrup on human milk volume and weight gain in the preterm infant: a randomized controlled clinical trial.

Human milk feeding can support premature infants to thrive. Yet those with premature infants can be challenged in human milk production. Considering this, and the use of potentially harmful human milk enhancers, the present study was conducted with the aim of determining the effect of orally consumed Lactuca sativa (L. sativa) syrup (lettuce extract) on human milk volume and subsequent weight gain in the preterm infant. Extracts from lettuce and other plants such as silymarin are already evidenced to be safe for use during lactation and have other therapeutic effects in humans. Yet this is the first study of its kind. This parallel randomized clinical trial included lactating participants with their preterm infants who were born at < 32 weeks' gestation and admitted to an intensive care unit. Convenience sampling was used to recruit participants. Eligible participants were allocated to groups randomly: intervention (n = 47), placebo (n = 46), and control (n = 47). The intervention group received one tablespoon of Lactuca sativa (L. sativa) syrup, and the placebo group received one tablespoon of placebo syrup 3 times a day for 1 week. Those in the control group did not receive any herbal or chemical milk-enhancing compounds. Routine care was provided to all three groups. Participants recorded their milk volume for 7 days in a daily information recorder form. Infant weight was measured prior to the intervention, and on the third, fifth and seventh days of the intervention period. There was a statistically significant difference observed in the adjusted mean volume of milk on the fourth and fifth days between the intervention, placebo, and control groups (P < 0.05). The adjusted mean milk volume of those in the intervention group on the first day was significantly higher than those in the control group and those in the placebo group. On the second day, the adjusted mean milk volume of those in the intervention group was higher than in those from the control group; and on the fourth day it was higher than in those from both the control and placebo groups; on the fifth day it was higher than in those in the placebo group; on the sixth day it was higher than in those in the control group and on the seventh day it was higher than in those in the control group (P < 0.05). There was no statistically significant difference in terms of the mean changes (with or without adjustment) in the weight of preterm infants between any of the groups. Lactuca sativa (L. sativa) syrup increases the volume of human milk production and no specific side effects have been reported in its use. Therefore, Lactuca sativa syrup can be recommended for use as one of the compounds that increase human milk volume.

Evaluation of anti-inflammatory effects of leaf and seed extracts of Plantago major on acetic acid-induced ulcerative colitis in rats.

ETHNOPHARMACOLOGICAL RELEVANCE: Plantago major (P. major) has traditionally been used in Iranian Persian medicine to treat gastrointestinal ulcers and bleeding. RESEARCH OBJECTIVES: This study aimed to investigate the anti-inflammatory effects of the leaf and seed extracts of P. major in rats with acetic acid-induced ulcerative colitis (UC). MATERIALS AND METHODS: To this end, 49 rats were randomly divided into seven groups. UC was induced in all groups but the control (vehicle) group using a single intra-rectal administration of 2 ml of 4% acetic acid. Other groups received daily intraperitoneal (i.p.) injections of the seed extract of P. major (400 mg/kg and 700 mg/kg), the leaf extract of P. major (400 mg/kg and 700 mg/kg), and sulfasalazine (400 mg/kg) for seven consecutive days, respectively. The rats' rectum was surgically removed and evaluated for macroscopic and microscopic damage. The tissue levels of oxidative stress and inflammatory markers were measured using the ELISA method. RESULTS: The high-dose leaf extract significantly decreased ulcer index and histopathologic damage as well as the tissue levels of IL-6, TNF-α, PGE2, IL-1ß, MPO, and MDA compared to the damage group. The low-dose leaf extract also significantly reduced the levels of some markers. The seed extract in the two used doses caused a modest decrease in the histopathological damages and ulcer index. CONCLUSIONS: P. major leaf extract effectively reduces inflammation and mucosal damage in rats with UC, especially when administered in high doses. P. major seed extract has minimal protective effects on UC.

Rhus coriaria L., a new candidate for controlling metabolic syndrome: a systematic review.

OBJECTIVES: Rhus coriaria L. (RC) is a deciduous shrub with several pharmacological activities. Evidence of the effects of RC on weight, hyperlipidaemia, hypertension and diabetes mellitus have been presented in this study. Books, thesis and internet-based resources such as PubMed, Web of Science, Scopus, EMBASE, Cochrane, Ovid and Google Scholar were searched for the English, Arabic and Persian literature from 1966 to 2020 (December). The keywords were Rhus coriaria L., Sumac, metabolic syndrome and all its medical conditions (hyperlipidaemia, hypertension, obesity and diabetes mellitus). The inclusion criteria were full-text animal and human studies conducted on RC to evaluate its efficacy on any components of metabolic syndrome (MetS). Jadad scale was used to assess the quality of evidence. KEY FINDINGS: Reviewing 23 relevant studies demonstrated that RC is able to decrease the level of blood glucose, glycated haemoglobin, serum insulin and insulin resistance. Studies on hyperlipidaemia and obesity have very contradicting results, and there is no definite conclusion on the effect of RC on lipid profile. However, the hypotensive and effect of RC was confirmed in the existing studies. SUMMARY: According to the literature, RC can be considered as a promising curative candidate for MetS. However, further studies with larger sample size and higher methodological quality are needed.

The Efficacy of Plantago major Seed on Liver Enzymes in Nonalcoholic Fatty Liver Disease: A Randomized Double-Blind Clinical Trial.

OBJECTIVE: This study aims to evaluate the effects of Plantago major (P. major) seed on liver enzymes and ultrasound patterns in nonalcoholic fatty liver disease (NAFLD). DESIGN: In this randomized double-blind placebo-controlled clinical trial, 74 patients with NAFLD were administered either 2 g P. major or placebo twice daily for 12 weeks. All patients were advised to follow the recommendations for daily exercise and diet modification. Levels of liver enzymes as well as other laboratory indexes were measured at the beginning of the study and after 12 weeks. Indeed, the alteration in ultrasound grade was evaluated in NAFLD patients. RESULTS: Sixty-three participants completed the study in the intervention and control groups. The mean age of participants was 43.3 (±8.927) and 38.7 (±8.48) years in the intervention and control groups, respectively. P. major group showed significant reduction in alanine aminotransferase (ALT) (47.32 ± 21.77 IU/L vs. 50.03 ± 21.19, P = 0.021), aspartate aminotransferase (AST) (28.29 ± 10.49 IU/L vs. 32.03 ± 13.30, P = 0.004), triglyceride (TG) (200.93 ± 106.741 mg/dl vs. 183.75 ± 73.96, P = 0.001), waist circumference (WC) (101.25 ± 9.27 cm vs. 101.18 ± 8.63, P = 0.027), and grade of fatty liver in ultrasonography (P = 0.038), comparing to the placebo group. There was no significant difference between the two groups regarding serum levels of fasting blood sugar (FBS), high-density lipoprotein (HDL), low-density lipoprotein (LDL), cholesterol, and other outcomes. CONCLUSION: P. major supplementation with a daily dose of 2 g for 12 weeks improved serum levels of ALT, AST, and TG in patients with NAFLD. Further studies with a larger sample size are recommended.

The Efficacy of Rosa damascena on Liver Enzymes in Nonalcoholic Fatty Liver Disease: A Randomized Double-Blind Clinical Trial.

OBJECTIVE: This study aimed to appraise the potential effects of Rosa damascena preparation on nonalcoholic fatty liver disease (NAFLD). DESIGN: In the randomized, double-blind placebo-controlled clinical trials, seventy-four patients with NAFLD were prescribed either 1 g Rosa damascena powder or placebo three times in a day for 12 weeks. All patients were provided the lifestyle modification instructions and recommended following them precisely. ALT, AST, FBS, and lipid profiles were measured at the baseline after 12 weeks of studying. The Mann-Whitney U test was correctly used to compare the changes of variables among the groups. RESULTS: Seventy-two patients completed the study in two groups. Sixty-seven patients were men, and the mean ± standard deviation of age was 40.11 ± 9.05 years. The Rosa damascena group showed a considerable decrease in the serum ALT (23.83 ± 24.82 vs. 16.19 ± 27.41, p=0.042), waist circumference (99.73 ± 10.01 vs. 101.52 ± 8.84, p=0.003), triglyceride (TG) (186.29 ± 76.75 vs. 184.47 ± 73.05, p=0.001), cholesterol (167.47 ± 34.48 vs. 184.11 ± 33.54, p=0.001), low-density lipoprotein (LDL) (99.17 ± 28.66 vs. 107.52 ± 25.42, p=0.001), and elevation in serum high-density lipoprotein (HDL) (41.85 ± 6.56 vs. 39.20 ± 5.00, p < 0.007) compared to the control group. Improving fatty liver degree due to liver ultrasound was higher in the Rosa damascena group than the control group (p=0.001). CONCLUSION: Rosa damascena meaningfully improves liver function in NAFLD. Hence, it can be recommended along with lifestyle modification for these patients. Further studies are recommended with a larger sample size.

Effects of Valeriana officinalis (Valerian) on tension-type headache: A randomized, placebo-controlled, double-blind clinical trial.

OBJECTIVE: Tension-type headache is the most frequent type of headache. Considering the effectiveness of Valeriana officinalis (Valerian) in treatment of some types of headache, the effect of valerian root was studied in patients with tension-type headache. MATERIALS AND METHODS: The current study is a double-blind randomized clinical trial that was conducted in Shams Hospital of Mashhad University of Medical Sciences, Mashhad, Iran, from January to June 2018. We included 88 participants with tension-type headache and randomly assigned them to intervention and control group by block randomization in a 1:1 ratio. The intervention group received Sedamin® capsule (530 mg of valerian root extraction) while the placebo group received 500 mg of breadcrumbs both given as two capsules daily for a month -after dinner. The headache impact on activity of daily livings performance, headache disability, and headache severity were measured using questionnaires in baseline and one month after intervention in both groups. RESULTS: The average age (±SD) of the participants was 34.9 (±8.7) years old. After one month, the impact of headache on daily livings performance, significantly reduced in intervention group (mean=51.2) versus the placebo (mean=57.0), (p<0.001). There was a significant reduction in disability in intervention group (mean=22.9) compared to the placebo (mean=27.4) (p<0.001) and the severity score showed significant reductions in intervention group (mean=3.5) versus the placebo group (mean=5.1) (p<0.001). CONCLUSION: The present trial showed that valerian capsule could reduce the headache impact on daily livings performance, disability and severity of tension-type headache.

Effects of Securigera Securidaca seed extract in combination with glibenclamide on antioxidant capacity, fibroblast growth factor 21 and insulin resistance in hyperglycemic rats.

ETHNOPHARMACOLOGICAL RELEVANCE: Undesired effects of synthetic antidiabetic agents have made researchers to seek for safer and healthier resources. With this aspect, herbal materials have attracted substantial research interest and are being extensively investigated. Considering that herb-drug interactions can be a double-edged sword presenting both risks and benefits, investigation of such interactions is greatly in demand. AIM OF THE STUDY: to investigate possible beneficial effects of hydroalcoholic extract of SecurigeraSecuridaca seed (HESS) on antioxidant capacity, fibroblast growth factor 21 (FGF21) and insulin resistance in Streptozotocin (STZ)-induced diabetic rats, alone and in combination with glibenclamide. MATERIALS AND METHODS: Forty male Wistar rats were randomly divided in to eight equal groups including healthy and diabetic controls and six treated groups with a various doses of HESS alone and in combination with glibenclamide, for 35 consecutive days. Serum samples were taken and analyzed for biochemical profile, HOMA indexes, FGF21, oxidative/nitrosative stress and inflammatory biomarkers as compared with the controls. Moreover, total phenolic and flavonoid contents of herbal extract were assessed. RESULTS: The herbal extract was found to be rich in flavonoid and phenolic components. Both of glibenclamide and the HESS decreased glucose and insulin resistance, as well as increased body weight and insulin sensitivity. Moreover, the extract could mitigate oxidative/nitrosative stress and inflammation dose-dependently, however, the standard drug was less effective than HESS. Induction of diabetes increased FGF21 levels and both of the treatments could reduce its contents, however, glibenclamide was more effective than HESS. CONCLUSIONS: The results clearly show that there is no contradiction between HESS and glibenclamide. Moreover, the herbal extract could augment antioxidant and anti-inflammatory properties of the standard drug.

Survey of the effect of doxorubicin and flavonoid extract of white Morus alba leaf on apoptosis induction in a-172 GBM cell line.

In this study, the effect of doxorubicin, flavonoid extract of white Morus alba leaf (MFE) and a combination of doxorubicin and flavonoid extract on Bax and Bcl2 levels and caspase 3 activity of cancer A-172 GBM cell line was investigated. Bax/Bcl2 levels of treated A-172 GBM cell line with flavonoid extract of white mulberry leaf were estimated by ELISA methods. Caspase 3 activity of treated A-172 GBM cells was determined by calorimetric assay. The flow cytometry assessment was used to estimate the apoptosis percent of treated A-172 GBM cells. Treatment of A-172 GBM cells with MFE, doxorubicin and a combination of MFE and doxorubicin caused a significant decrease in Bcl2 level and an increase in Bax level. The apoptosis percent of treated cells were also elevated significantly. Present results suggest that concomitant use of herbal medicine and chemotherapy may be an effective alternative method for the treatment of cancers.

Anticonvulsant Effects of the Hydroalcoholic Extract of Alpinia officinarum Rhizomesin Mice: Involvement of Benzodiazepine and Opioid Receptors.

BACKGROUND AND PURPOSE: Epilepsy is one of the most common serious neurological conditions. The current therapeutic treatment of epilepsy with modern antiepileptic drugs is associated with side effects, dose-related and chronic toxicity, and teratogenic effects and in approximately 30% of the patients is ineffective. Alpinia officinarum is used in Iranian traditional medicine for treatment of different diseases like back pain and seizure. METHODS: In this study, anticonvulsant effects of hydroalcoholic extract of Alpinia officinarum rhizomes were examined by using pentylentetrazole (PTZ) model in mice. Alpinia officinarum rhizomes extract (200, 400 and 600 mg/kg), diazepam (1 mg/kg) and normal saline (10 mL/kg) were injected (ip) 30 minutes before PTZ (90 mg/kg, ip). The time taken before the onset of clonic convulsions, the duration of colonic convulsions, and the percentage of seizure and mortality protection were recorded. For further clarification of the mechanism of action for Alpinia officinarum, flumazenil (2 mg/kg, ip) and naloxone (5 mg/kg, ip) were also injected 5 minutes before Alpinia officinarum extract. RESULTS: Alpinia officinarum extract at the doses of 200 and 400 mg/kg prolonged the time of onset of seizure and decreased the duration of seizures compared to control (saline) group (p < 0.05). At the dose of 600 mg/kg, percentage of seizure protection was 16.66%. Naloxone and flumazenil could suppress anticonvulsant effects of Alpinia officinarum. CONCLUSIONS: It seems that Alpinia officinarum could be a good candidate and be useful for seizure control and treatment, and in these effects, opioid and benzodiazepine receptors might probably be involved.

Anticonvulsant activity of Dorema ammoniacum gum: evidence for the involvement of benzodiazepines and opioid receptors.

This study investigated the anticonvulsant activity and possible mechanism of action of an aqueous solution of Dorema ammoniacum gum (DAG) which has been used traditionally in the treatment of convulsions. In this study, the anticonvulsant activity of DAG was examined using the pentylentetrazole (PTZ) model in mice. Thirty male albino mice were divided randomly and equally to 5 groups, and pretreated with normal saline, diazepam, or various doses of DAG (500, 700, and 1000 mg/kg, i.p.), prior to the injection of PTZ (60 mg/kg, i.p.). The latency and duration of seizures were recorded 30 min after PTZ injection. Pretreatments with naloxone and flumazenil in different groups were studied to further clarify the mechanisms of the anticonvulsant action. Phytochemical screening and thin layer chromatography (TLC) fingerprinting of ammoniacum gum was also determined. DAG showed significant anticonvulsant activity at all doses used. The gum delayed both the onset and the duration of seizures induced by PTZ. Treatment with flumazenil before DAG (700 mg/kg) inhibited the effect of gum on seizure duration and latency to some extent and administration of naloxone before DAG also significantly inhibited changes in latency and duration of seizure produced by DAG. The percentage inhibition was greater with naloxone than with flumazenil. This study showed that DAG had significant anticonvulsant activity in PTZ-induced seizures, and GABAergic and opioid systems may be involved. More studies are needed to further investigate its detailed mechanism.

Antioxidant Activity and Phenolic and Flavonoid Contents of the Extract and Subfractions of Euphorbia splendida Mobayen.

INTRODUCTION: The harmful action of the free radicals which cause the oxidative stress can be blocked by antioxidant substances, and different plant extracts showed antioxidant activity. The aim of this study is was evaluation the antioxidant activity of total methanol extract (ME) and subfractions of Euphorbia splendida Mobayen. MATERIALS AND METHODS: Aerial part of E. splendida was extracted by maceration with methanol and then subfractionated by liquid-liquid fractionation using petroleum ether, chloroform, ethyl acetate, and water. Antioxidant activity was assessed by 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging activity assay, reduction of ferric ions and ferrous ion chelating potential. Total phenolic contents (TPC) and total flavonoid contents (TFC) were estimated with Folin-Ciocaltue and aluminum chloride methods, respectively. RESULTS: The findings revealed that E. splendida ME and subfractions showed a dose-dependent antioxidant activity. ME showed the highest antioxidant activity based on total reduction capability and ferrous ions chelating assay tests. Aqueous fraction and then ethyl acetate fraction showed the best IC50in DPPH radical scavenging test in comparison to butylated hydroxytoluene. ME showed the highest value of TPC and TFC (270.74 ± 0.005 mg/g and 208.23 ± 0.007 mg/g, respectively). CONCLUSION: This study showed that the extract and subfractions of E. splendida have antioxidant activity. The antioxidant activity of the extract and fractions might be attributed to the presence of phenolic compounds. More studies are needed to determine the active antioxidant compounds of this plant. SUMMARY: Total extract and subfractions of Euphorbia splendida showed antioxidant activity. Abbreviations Used: TPC: Total phenolic content, TFC: Total flavonoid content, DPPH: 2, 2'- diphenyl-1-picrylhydrazyl, BHT: Butylated hydroxytoluene, EDTA: Ethylene Diamine Tetra Acetic acid, ME: Total methanol extract, EAF: Ethyl acetate fraction, AQF: Aqueous fraction, PEF: Pertolium ether fraction, CHF: Chloroformic fraction.

Anticonvulsant Activity of Hydroalcoholic Extract of Citrullus colocynthis Fruit: Involvement of Benzodiazepine and Opioid Receptors.

This study investigated the anticonvulsant activity of Citrullus colocynthis fruit extract used traditionally in the treatment of convulsion. Albino mice were pretreated with extract in different doses (10, 25, 50, and 100 mg/kg), prior to injection of pentylenetetrazole. Animals received pretreatments with naloxone and flumazenil to further clarify the mechanisms of anticonvulsant action. The total flavonoid content of Citrullus colocynthis extract was also determined. Citrullus colocynthis hydroalcoholic extract with doses 25 and 50 mg/kg prolonged the onset of seizures and decreased the duration compared with control group. Pretreatment by flumazenil could inhibit the effect of Citrullus colocynthis on latency of seizure to some extent and administration of naloxone significantly inhibited changes in latency and duration of seizure produced by Citrullus colocynthis This study showed that Citrullus colocynthis has significant anticonvulsant effect in pentylenetetrazole-induced seizures in mice, and these effects may be related to its effect on γ-aminobutyric acid-ergic and opioid systems. These results confirmed the traditional use of Citrullus colocynthis in Iranian traditional medicine.

Evaluation of anti-inflammatory and analgesic activities and the phytochemical study of Astragalus arbusculinus gum in animal models.

BACKGROUND: The importance of inflammatory diseases and side effects of conventional drugs necessitate the finding of new anti-inflammatory agents from natural sources. In this study, for the first time, the anti-inflammatory and analgesic effects of the aqueous extract of Astragalus arbusculinus gum were evaluated in animal models. METHODS: Thirty-five male Wistar rats were divided into five groups and pretreated with different doses of A. arbusculinus gum extract before the injection of formalin. Paw edema was measured by a plethysmometer at time 0 and after 8 days and compared to controls. The analgesic effect of the extract was evaluated using the hot-plate test in 42 male albino mice. RESULTS: The extract of A. arbusculinus gum decreased the rat paw edema in a dose-dependent manner. The effect on inflammation of the highest dose of extract was comparable to sodium salicylate. Astragalus arbusculinus gum extract at doses of 300 and 1000 mg/kg showed analgesic effects comparable to sodium salicylate and morphine, respectively. A preliminary phytochemical study and the determination of the total phenolic content of the gum extract were performed for the first time. CONCLUSIONS: The aqueous extract of A. arbusculinus gum reduced the inflammation and pain in a dose-dependent manner and is a good candidate for further studies of safety and efficacy. The clarification of active components of the plant is necessary.

Evaluation of Anti-inflammatory and Analgesic Activity of the Extract and Fractions of Astragalus hamosus in Animal Models.

The objective of this study was to evaluate the anti-inflammatory and analgesic activities of the hydro-alcoholic extract of the pods of Astragalus hamosus (HAAH), a plant used in Iranian traditional medicine, and antinociceptive effects of different fractions in animal models. The anti-inflammatory effect was evaluated by the rat paw edema induced by formalin. Also the analgesic effect was examined by the acetic-acid-induced writhing response and hot plate test. The analgesic effects of chloroform, hexane, ethyl acetate and aqueous fractions were evaluated by the hot-plate method. The hydroalcoholic extract of Astragalus hamosus could reduce the edema in a dose-dependent manner (P<0.05). In the acute phase, the result of 1000 mg/Kg and in the chronic phase, the result of 100 and 300 mg/Kg of the extract were more significant and comparable with the effect of sodium salicylate. Also application of different doses of HAAH had significant anti-nociceptive effects on both animal models. The findings showed that HAAH at doses of 700 and 1000 mg/Kg produced analgesic effects comparable to sodium salicylate. The hexane and ethyl acetate (but not the other fractions) showed significant analgesic activity in hot plate test, when compared to morphine. The results of this study demonstrated the anti-inflammatory and analgesic effects of HAAH extract and hexane and ethyl acetate fractions of the extract in animal models and justify traditional use of this plant in the treatment of pain and inflammatory conditions. More studies to clarify the active components are necessary.