Ghazaleh Fotouhi; Mojtaba Naderi; Fatemeh Shahbazi; Mostafa Alinaghizadeh
Abstract
Prolongation of wound healing time can be led to chronic infections. Therefor, to achieve infection preventive methods to accelerate of wound improvement process is one of essential needs of Human. In this study, the effects of methanolic extract of Holothuria leucospilota was investigated on restoration ...
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Prolongation of wound healing time can be led to chronic infections. Therefor, to achieve infection preventive methods to accelerate of wound improvement process is one of essential needs of Human. In this study, the effects of methanolic extract of Holothuria leucospilota was investigated on restoration of created wound in rat skin. Methanolic extracts of collected sea cucumber from depth of 10 to 15 meters was prepared by rotary. The amount of 0.5 and 1 gr of obtained extraction were added to base ointment. In continuing, 40 rats (average mean of 185±5 gr) were divided into 4 groups which included control, sham (base cream), 0.5% ointment and 1% ointment. Wound (diameter of 6±1 mm) was created on rats’ skin by punch biopsy. Each group were treated (1ml) with prepared concentrations ointment during 13 days. On days of 0, 4, 7, 10 and 13, the wound improvement process was investigated and the diameter of the wounds was measured. According to results, accelerate the wound recovery process was more obvious in treated groups with 0.5% and 1% ointment compared to control and sham groups. Also, there was significant different between treated group with 1%, sham and control during days of 7, 10, 13 (P<0.05).
Somayeh Moradzadeh; Shahrokh Aashaei rad; Fatemeh Shahbazi
Abstract
Praying mantis are a small order of insects,that consisting of 2452 species of 446 genera and 15 families worldwide. They are active predator and feed on the different types of insects such as locusts and the other insects and even the vertebrates like snakes and lizard. The present study was carried ...
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Praying mantis are a small order of insects,that consisting of 2452 species of 446 genera and 15 families worldwide. They are active predator and feed on the different types of insects such as locusts and the other insects and even the vertebrates like snakes and lizard. The present study was carried out to investigate the faunistic of mantis in Lahijan and suburbs during the years of 2018-2019. In this regard, the city of Lahijan was divided into 10 stations based on different ecological factors. Sampling were done directly and manually at equal times during spring, summer and autumn seasons. The collected samples were transferred to biosystematic laboratory of Shahid Beheshti University and were identified up to the level of genus and species with the help of stereo microscope and valid identification key such as Medditerranean Eurozone (Battiston.etal., 2010), Four species among 120 species were identified. Which are: Mantis religiosa, Hierodula transcaucasica, Empusa fasciata, Bolivaria brachyptra were Identified.All the species were approved by professor Battiston and reported for the first time from Lahijan city, Guilan Province.
Sajjad Rajabi; , Fatemeh Shahbazi; Ali Noori; Raziye Karshenas
Abstract
Abstract Since copper nanoparticles are one of the first nanoparticles planned in the industry, recent research has shown the pathological toxicity of these nanoparticles in different tissues and organs. Therefore, the purpose of this study was to investigate the effect of copper oxide nanoparticles ...
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Abstract Since copper nanoparticles are one of the first nanoparticles planned in the industry, recent research has shown the pathological toxicity of these nanoparticles in different tissues and organs. Therefore, the purpose of this study was to investigate the effect of copper oxide nanoparticles on gonadal tissues in male rats. In this study, 40 Wistar rats were divided in four groups control group and 10, 20, 30 (mg/ kg) of copper oxide nanoparticles, respectively 5 Times, received for one day in a row for 10 days. In order to histopathologic studies, the testicular tissue samples were stained with hematoxylin-eosin. The data were analyzed in the spss software, one –way anova and duncan's test. The results showed that the amount of spermatogonial cells, primary spermatocyte, spermatid cells were decreased in dose-dependent manner. In the testicle, disorders such as abnormality and severe deformity with different morphology in the spermicidal tubes and destruction of sertoli cells were observed. The results of the studies showed that copper oxide nanoparticles with oxidative stress and cellular degradation disrupted the structure and process of gonadal spermatogenesis which due to the absence of mortality in mice may eventually overcome disturbances in normal conditions.
Animal physiology
Fatemeh Shahbazi
Abstract
The bilateral relationship between Ventro Medial Nucleus and dopaminergic system may play an important role in the secretion of the gastrointestinal exocrine glands, nutritional behaviors and habits. The aim of this study was to investigate the role of dopaminergic receptors in regulation of the exocrine ...
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The bilateral relationship between Ventro Medial Nucleus and dopaminergic system may play an important role in the secretion of the gastrointestinal exocrine glands, nutritional behaviors and habits. The aim of this study was to investigate the role of dopaminergic receptors in regulation of the exocrine glands and to find out whether the change in saliva secretion is the primary effects of central nervous system or there are subsequences of taking food, lick, swallowing and digestion in the mouth. Ninety rats were stereotaxically implanted under urethane anesthesia. The rats were divided into 9 groups: one control group, one fasted control group, two sham groups given surgery and surgery plus medicine solvents, one SCH23390 group, one bromocriptine group, one mixed group: SCH23390 along with bromocriptine, one pilocarpine and a mixed group: bromocriptine along with pilocarpine. In this study, saliva secretion was gathered from submandibular glands by cannulas and measures then volume of secretion by using SPSS program the groups were compared (Test Anova). The saliva secretion was not significantly different between all groups except SCH23390 group, pilocarpine, and both mixed groups which showed significant differences in the saliva secretion. This study showed that SCH23390 (7.5 μg) could increase saliva secretion. Bromocriptine could not affect saliva secretion. Bromocriptine along with pilocarpine significantly decreased saliva secretion. However, this agonist together with SCH23390 significantly increased saliva secretion. So the dopaminergic system of the Ventro Medial Nucleus has a considerable effect on the secretion of the exocrine glands in the digestive system.
Animal physiology
Fatemeh Shahbazi
Abstract
The goal of this study was to find out whether the change in saliva secretion is the primary effects of these agents or there are subsequences of taking food, lick, swallowing and digestion in the mouth. In this study, 70 rats were stereotaxically implanted under urethane anesthesia. The rats were divided ...
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The goal of this study was to find out whether the change in saliva secretion is the primary effects of these agents or there are subsequences of taking food, lick, swallowing and digestion in the mouth. In this study, 70 rats were stereotaxically implanted under urethane anesthesia. The rats were divided into 7 groups: one control group, two sham groups given medicine solvents, two sulpiride groups (4 μg and 8 μg), one bromocriptine group (25 μg) and a mixed group: sulpiride 8 μg along with bromocriptine 25 μg. In this study, saliva secretion was gathered from submandibular glands by cannulas and measures then volume of secretion by using SPSS program the groups were compared (Test Anova). The saliva secretion was not significantly different between all groups except sulpiride 8 μg group and a mixed group which showed significant differences in the saliva secretion. This study showed that sulpiride (8 μg) could increase saliva secretion, while sulpiride (4 μg) couldn’t increase saliva secretion. Bromocriptine (25 μg) could not affect saliva secretion. However, bromocriptine (25 μg) along with sulpiride 8 μg significantly increased saliva secretion. So the dopaminergic system of the VMN has a considerable effect on the secretion the exocrine glands in the digestive system.
Animal physiology
Fatemeh Shahbazi
Abstract
Injection of sulpiride (D2 receptor antagonist, antipsychotic drug) into VMN hypothalamus, increased gastric volume secretion and decreased gastric pH. The present study the effect of SCH23390 (D1 dopamine receptor antagonist) on the gastric acid secretion and its acidity were studied. 70 rats were divided ...
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Injection of sulpiride (D2 receptor antagonist, antipsychotic drug) into VMN hypothalamus, increased gastric volume secretion and decreased gastric pH. The present study the effect of SCH23390 (D1 dopamine receptor antagonist) on the gastric acid secretion and its acidity were studied. 70 rats were divided into 7 groups: two control groups, two sham groups given medicine solvents, a SCH23390 group (7.5µg), and bromocriptine group (25µg) and a mixed group: SCH23390 7.5µg along with bromocriptine 25µg. Gastric secretion volume was taken by syringe 2CC and by using SPSS program the groups were compared (Test Anova). Results showed that SCH23390 group (7.5µg) could increase volume of gastric secretion and decrease gastric acidity, while Bromocriptine (25µg) could not affect gastric volume secretion and its acidity. However, bromocriptine (25µg) along with SCH23390 7.5µg significantly increased gastric volume secretion and its acidity. There for the dopaminergic system of the VMN has a considerable effect on the secretion of the exocrine glands in the digestive system.
Kobra Ayase; Rasool Zamani-Ahmadmahmoodi; Fatemeh Shabazi; Hamid Soudaeizadeh
Volume 4, Issue 2 , December 2015, , Pages 63-68
Abstract
Abstract Studies have shown that birds due to being in the high trophic levels on the ecosystems, and also high sensitivity to toxic substances are a useful indicator for the evaluation of mercury pollution. The objective of the present study was to evaluate mercury level in the feathers of Turdus philomelos ...
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Abstract Studies have shown that birds due to being in the high trophic levels on the ecosystems, and also high sensitivity to toxic substances are a useful indicator for the evaluation of mercury pollution. The objective of the present study was to evaluate mercury level in the feathers of Turdus philomelos and Turdus merula in khanikan forests as an indicator of mercury contamination. To attain this aim, 37 samples belonging to two species were collected from khanikan forests, located in southern part of Noushahr and Chalous cities. Feather samples were removed in the lab. Level of mercury was determined by Mercury Analyzer AMA 254. Statistical analyses were performed using SPSS software. According to the results of this study, mercury levels in feathers of Turdus philomelos (0.98 µg/g) and Turdus merula (0.94 µg/g) was too lower than standard limit (5 µg/g) , and also there was no significant difference between two species in terms of mercury level. These results showed that habitat of these species were not heavily polluted by mercury. According to biomagnification of mercury in trophic levels, can be concluded that because of seed eating habits of Turdus philomelos and Turdus merula , low levels of mercury accumulated in feathers of these species
