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Showing 4 results for Cannabis Sativa
Tehranipour M, Javadmoosavi Bz (msc), Kehtarpour M, Khayyatzade J,
Volume 13, Issue 1 (3-2011)
Abstract
Background and Objective: Neurons are injured under physical, chemical and pathological conditions. The effects of injuries in peripheral nervous system returns as retrograde to the cell body of neurons in central nervous system and causes brain and spinal degeneration. This study was done to evaluate the effect of aquatic extract of Cannabis sativa leaves on degeneration of alpha motoneurons in spinal cord after sciatic nerve compression in Rats.
Materials and Methods: This experimental study was carried out on thirty two male Wistar rats, weighing 300-350 grams. Animals were divided into four groups each consisting eight members A: control, B: compression, C: compression + treatment with 25 mg/kg aquatic extract, D: compression + treatment with 50 mg/kg aquatic extract. In order to induce compression in B, C and D, after cutting the right thigh muscle, Sciatic nerve of thigh was exposed to compression for 60 seconds using locker pincers. The first extract injection was done intraperitoneally immediately after compression and the second intera peritoneal injection was done 7 days later. 28 days after compression, the Lumbar spinal cord were dissected, fixed and stained with toluidine blue. The density of alpha motoneurons was measured using dissector and stereological methods. Data was analyzed with using Minitab-13 software, ANOVA and Tukey tests.
Results: Neuronal density was 611.5±34.2 and 1633.4±30.7 in compression and control groups respectively (P<0.001). There was a meaningful statistical increase in neuronal density of group C (1278.6±28.1) in comparing compression group (P<0.001). The neuronal density in group (D) (1549.8±87.7), significantly increased in comparison with group (B) (P<0.001).
Conclusion: This study showed that aquatic extract of Cannabis sativa leaves increases the density of alpha motoneurons in spinal cord after sciatic nerve compression in Rats. The increase in neuronal density is relevant to the amount of extract used.
Tehranipour M (phd), Sabzalizade M (msc),
Volume 13, Issue 2 (7-2011)
Abstract
Background and Objective: Memory is an especial ability of brain in which saves the information and reuptake it. The memory is depended on hippocampus and amigdal. The neuronal density of hippocampus and amigdal have direct effect on their physiological functions. Cannabis sativa is belongs to Cannabinaceae family that Tetrahidrocanabinol is important component of this plant. The aim of this study was to assess the effect of alcoholic extract of Cannabis sativa on CA1, CA2 and CA3 subfeilds of hippocampus neuronal density in male Rats.
Materials and Methods: This experimental study was performed on 18 male Rats with (250-320gr) weight and 3 month old in faculty of science, Islamic Azad University of Mashhad, Iran (2010-2011). At first the alcoholic extraction was provided by the soxhlet method of the seed of this plant with coded 2548. Eighteen male wistar Rats were allocated into 2 experimental groups (25,75mg/kg of alcoholic extract of Cannabis sativa) and one control group. Alcoholic extract of Cannabis sativa was injected intraperitonealy (I.P.) in experimental groups for two weeks (every week one injection). After four weeks animal was decapitated and their brain dissected, fixed in 10% formalin, sectioned in 7μm thickness and stained by toluidin blue. By applying stereological techniques and systematic random sampling scheme the neuronal density of hippocampus were estimated.
Results: Neuronal density in control and treated with alcoholic extract (25,75mgkg) CA1 was 17982, 26750 and 22801 respectively. Neuronal density in CA2 was 19171, 26750 and 22801 respectively and also in CA3 was 19391, 24043, 28571 respectively. Neuronal density in CA1, CA2 and CA3 of hippocampus in treated groups with alcoholic extract (25,75mgkg) was significantly increased in comparision with controls (P<0.01).
Conclusion: This study determined that the alcoholic extract of Cannabis sativa can induce hippocampus neurogenesis which is not dose depended.
Farhadi Moghadam B , Fereidoni M, Asadollahi A,
Volume 17, Issue 4 (12-2015)
Abstract
Background and Objective: Cyclooxygenase 1 and 2 activities on arachidonic fatty acids of cell membrane produces prostaglandins which involved in inflammatory processes. This study was done to evaluate the effect of hexanic and hydroalcoholic extract of Cannabis sativa flowers on inflammatory paw edema in rats. Methods: In this experimental study, 56 male Wistar rats were allocated into the control, sham, sodium salicylate (300mg/kg/bw) and hydroalcoholic extract of heated flowers in 1, 10 and 50 mg/kg/bw, hydroalcoholic extract of unheated flowers in 50mg/kg/bw and hexanic extract of heated flower in 50mg/kg/bw, intraperitonally. 30 minutes after injection, inflammatory edema volume due to sub plantar injection of formalin (0.05 ml, 2.5%) measeared using plethysmometric method. Results: Intraperitonally injection of 50mg/kg/bw, of hydroalcoholic and hexanic extracts of heated flowers significantly reduced in inflammatory paw edema induced by formalin (P<0.05). Also, 50mg/kg/bw, hydroalcoholic extract of unheated flowers reduced the inflammatory paw edema in comparison with heated extracts (P<0.05). Conclusion: Hydroalcoholic extract of heated flowers decreased inflammation-induced paw edema in dose-dependent manner. The extract of unheated flowers, leads to more reduction of the inflammatory paw edema in comparison to heated flower extract, it can be due to carboxylated cannabinoid present in the hydroalcoholic extract of unheated flowers.
Mehregan Jamshidi , Seyed Ebrahim Hosseini , Davood Mehrabani , Masoud Amini ,
Volume 21, Issue 2 (7-2019)
Abstract
Background and Objective: The resin secretions of Cannabis sativa are called Hashish, which has medicinal and psychological properties. The most important psychoactive compound of this plant is THC (Delta-9-Tetrahydrocannabinol), which can stimulate cannabinoid receptors in the body. This study was carried out to evaluate the effect of hydroalcoholic extract of Cannabis sativa on cell survival and osteoblastic differentiation of human mesenchymal stem cells.
Methods: In this experimental study, mesenchymal stem cells derived from fat tissue of human abdominal were treated with 100 ng/ml concentration of hydroalcoholic extract of Cannabis sativa. Flow cytometry and RT-PCR techniques were used for detection of cells. The cytotoxic effect of Cannabis sativa extract and osteoblastic differentiation of cells were investigated using MTT method and Alizarin-Red staining, respectively. The karyotype analysis was performed with the preparation of extended metaphase chromosomes.
Results: The identity of the fat mesenchymal stem cells was confirmed by the expression of non-hematopoietic mesenchymal markers (CD90, CD44 and CD73) and the lack of expression of the hematopoietic marker (CD34 and CD45). The Alizarin-Red showed that the treatment with Cannabis sativa has no effect on the osteoblastic differentiation of human fat mesenchymal stem cells, and the treated cells were differentiated into bone cells same as control group. Also, Cannabis sativa extract has no effect on the structure, morphological status and number of chromosomes of these cells.
Conclusion: This study showed that human fat mesenchymal cells in the presence of a hydroalcoholic extract of Cannabis sativa maintain the ability of osteoblastic differentiation. Also, this extract has no effect on the chromosomal karyotype of the cells.
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