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Showing 11 results for Tiva

Hassani V (md), Pooreslami M (md), Niakan M (md), Sehat S (md),
Volume 1, Issue 3 (10-1999)

Stress responses have been excited by the painful stimuli, after induction of anesthesia and during the operation. In order to reduce these responses, it will be useful to select the type of anesthesia. Based on this fact, two groups of patients (Every group had 50 patients) were selected randomly. All patients are older than 18 years old and were chosen according to America Society of Anesthesiologist, class I, II, and were candidated for cataract surgery. Propofol were used for induction and maintenance of anesthesia In group 1 (TIVA group). In group 2 (Balance anesthesia), Sodium Thiopental induced anesthesia and the combination of N2O and Halothane were used for maintenance of anesthesia, respectively. Blood Glucose in two groups was measured before induction of anesthesia that all were in normal range (80-120 mg/d). Then after induction, incision and 30 minutes after start of surgery, blood Glucose was measured again and deviation from basal level were classified in three categories as: <10%, 10-20%, >20%. The results demonstrated meaningful difference between two groups, statistically (Chi-square, P<0.001). Increasing the blood Glucose in group 2, in three stages, was more than group 1. Blood Glucose level was increased about 20% from its basal level, in the majority of group 2 (32% after induction, 64% after incision, 62% 30 minutes after start of surgery). But, this amount of increasing in group 1 was detected as follow. 16% after induction, 16% after incision, 12% 30 minutes after start of surgery. It is possible that in TIVA group’s, control of blood Glucose and stress responses better than balance anesthesia group’s. The comparative measurements of catecholamine level in both groups would be the next investigations.
Tehranipour M, Javadmoosavi Bz (msc), Kehtarpour M, Khayyatzade J,
Volume 13, Issue 1 (3-2011)

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)

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.

Broomand N (md),
Volume 14, Issue 4 (12-2012)

Red eye is the most common sign of ocular inflammation. Serious cases of red eye need diagnosis and proper treatment by ophthalmologist but many other from of red eye can be managed primarily by health care personals. If General practioners were able to diagnose and differentiate the causes of red eye the serious complication have not been observed and the patients were have been treated on due time. Some of the causes of red eye are: blepharitis, corneal erosion, sub conjunctival hemorrhage, glaucoma, episcleritis and scleritis.
Jalali M, Tehranipour M, Mahdavi Shahri N,
Volume 15, Issue 4 (12-2013)

Background and Objective: Compression or sciatic axotomy induces neuronal death in spinal cord alpha motor neuron. This study was carried out to determine the effect of Nigella sativa seed alcoholic extract on spinal motor neuron density in anterior horn after sciatic nerve compression in rat. Materials and Methods: In this experimental study 24 wistar rats were divided into four groups A: control, B: compression, C: compression+treatment with 75 mg/kg alcoholic extract, D: compression+treatment with 50 mg/kg alcoholic extract. In control group muscle was exposed without any injury to sciatic nerve. In compression and treatment group, the right leg sciatic nerve compressed for 60 sec. After four weeks of post operation, L2-L4 and S1, S2 and S3 segments of spinal cord were sampled, processed, serially sectioned and stained with toluidine blue. The number of alpha motor neurons was counted using dissector method. Results: Neuronal density in compression group (650±32) significantly decreased in comparison with control group (1803±24). Neuronal density in C treated group (1581±47) and D treated group (1543±49) significantly increased compare to compression group (P<0.001). Conclusion: Alcoholic extract of Nigella sativa seed increased the density of alpha motor neurons in spinal cord after sciatic nerve compression in rats.
Mostafavi F, Mirkarimi Sk , Ozouni-Davaji R , Vakili Ma , Eshghinia S,
Volume 17, Issue 3 (10-2015)

Background and Objective: Obesity presented as the most pivotal public health problem. Motivational interviewing is a client-centered and direct technique to improve intrinsic motivation of people to change behavior using search and resolve ambivalence that its beneficial outcomes have widely been confirmed. This study was carried out to evaluate the effect of motivational interviewing on weight loss in women. Methods: In this randomized clinical trial study, 150 women with overweight and obesity were randomly divided into control, motivational interviewing and motivational interviewing and intention implementation groups. Data were collected through a researcher made questionnaire at baseline and 2 month follow up. Results: The score of protection motivation theory constructs including susceptibility, severity, rewards, self-efficacy, response efficacy and cost were significantly increased in the two intervention groups compared to the control group (P<0.05). Anthropometric characteristics were significantly reduced in the motivational interviewing and motivational interviewing with intention implementation group (P<0.05) in compare to the control group (P<0.05). Conclusion: Motivational interviewing integrated into intention implementation causes weight loss and increase the constructs score in women.
Farhadi Moghadam B , Fereidoni M, Asadollahi A,
Volume 17, Issue 4 (12-2015)

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.
M Soleimani Mehranjani, E Safari Senejani , S Naderi Noreini ,
Volume 19, Issue 2 (7-2017)

Background and Objective: Bisphenol A (BPA) is an endocrine disruptor chemical and as an environmental pollutant is able to generate free radicals causing tissue damage. This study was done to investigate the effect of Nigella sativa oil against BPA induced toxicity on the tissue of male NMRI mice kidney by stereological method.

Methods: In this experimental study 24 adult male NMRI mice (32±3 g) were randomly allocated into control, BPA (200 mg/kg/day), BPA (200 mg/kg/day) plus Nigella sativa oil (5 ml/kg/day) and Nigella sativa oil (5 ml/kg/day) groups and treated for 5 weeks, orally. At the end, animals were sacrificed, their left kidneys were removed, fixed, sectioned, processed and stained with Heidenhain' azan staining method. Then, the kidney tissue sections were evaluated using stereological method and serum malondialdehyde (MDA) level was also measured.

Results: The total weight and volume of kidney, volume of cortex, volume of proximal and distal tubules and volume of their lumen, volume of interstitial tissue, volume of glomeruli, tuft, as well as serum MDA level significantly increased in BPA treated group compared to the controls (P<0.05). These parameters were significantly reduced in BPA plus Nigella sativa oil group compared to BPA ones (P<0.05).

Conclusion: This study revealed that Nigella sativa oil can reduce the oxidative stress toxicity induced by BPA in the mice renal tissue.

Behrouz Baghaiee , Marefat Siahkouhian , Pouran Karimi , Ana Maria Botelho Teixeira , Saeed Dabagh Nikookheslat ,
Volume 20, Issue 2 (7-2018)

Aging is an inevitable process, which is associated with the development of various diseases such as cardiac hypertrophy. Hypertrophy can occur in both pathological and physiological form. Both types can be divided into a variety of eccentric and concentric types. In the present review, we present the effects of aging and exercise on patological and physioligac cardiac hypertrophy, oxidative stress and some of the mitogen-activated protein kinases with using 79 articles which acceable in pubmed and SID indexing which published during 1976-2016. If the age is associated with inactivity, leads to pathological heart hypertrophy. Meanwhile, the role of the protein family of kinases activated with mitogen and oxidative stress is important. Adolescence, if accompanied by low activity, can lead to increase oxidative stress through mitochondrial dysfunction. Oxidative stress can affect the activity of MAPKs. MAPKs have important role in wide variety of biological events, such as proliferation, differentiation, metabolism, mobility, survival and apoptosis. The tipping point of signal transduction and the regulation of these biological events bigin initially by the four MAPK subunits, including extracellular signal regulated kinase (ERK1 / 2), c-Jun NH2-terminal kinase (JNK1, -2.3) kinase P38 (A, B, y, S) and large MAPKs (BMKs or ERK5s). This paper focuses on two types of ERK1 / 2 and P38 that play an important role in the development of cardiac hypertrophy. ERK1 / 2 and P38 amounts change with aging. These changes are associated with the development of pathological hypertrophy. Sports activities can control the pathological pathway of hypertrophy and can lead to physiological hypertrophy. Exercise can control or reduce oxidative stress, ERK1 / 2 and P38 and ultimately can affect cardiac hypothyroidism.
Zahra Sharifi , Ghorban Asgari , Abdolmotaleb Seid-Mohammadi ,
Volume 21, Issue 1 (3-2019)

Background and Objective: Organic aromatic compounds as common environmental pollutants can be existing in the effluent of different industries in concentrations ranging from trace quantities to hundreds of milligrams per liter. Phenol compounds extremely have been used in pharmaceutical, wood industry and paper and dyes industries which introduced to environment via effluents. This study was done to evaluate the efficacy of persulfate activated by Fe2+ in the present of UV for removal of phenol from aqueous solutions.
Methods: This photocatalytic degradation experiment was performed in batch mode using a 2.5 L cylindrical reactor equipped with low-pressure Hg vapor lamp of 55 W for wavelength production of 253.7 nm. The effects of operating parameters such as pH of the solution (pH: 3-10), different initial persulfate concentration (10-75 mmol/l), initial Fe2+ concentration (5-30 mmol/l) and initial phenol concentration (10-100 mg/l). Concentration changes of phenol were determined using UV–VIS spectroscopy at the wavelength of 500 nm.
Results: Degradation of phenol was significantly decreased with increasing of pH from 3 to 10, whereas the highest phenol removal rate was 82% at pH=3 in 45 min contact time. Also, the phenol removal rate is depending on initial persulfate and Fe2+ concentration. The degradation of phenol by this photocatalytic followed first order rate decay kinetics (R2>98%(. Under optimum operational conditions, the removal of TOC was obtained to be 61% in 45 min contact time.
Conclusion: This study indicated that activation of persulfate by Fe2+ in the present of UV process could serve as a novel treatment technique for removal of phenol in aqueous solution.
Mehregan Jamshidi , Seyed Ebrahim Hosseini , Davood Mehrabani , Masoud Amini ,
Volume 21, Issue 2 (7-2019)

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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مجله دانشگاه علوم پزشکی گرگان Journal of Gorgan University of Medical Sciences
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