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Open Access Article
1 - ارزیابی ارتباط بین شدت آلودگی به ترماتودهای کبدی و میزان دفع تخم انگل در نشخوارکنندگان بومی شهرستان بهشهر
شاهرخ رنجبربهادری محمدتقی ذاتی رستمی صمد لطف ا لله زاده بهار شمشادی -
Open Access Article
2 - Microstructural Properties as a Function of Casting Process of Metal Matrix Nanocomposite
M. Ostad-Shabani M.R. Rahimipour M. Razavi M. Zakeri -
Open Access Article
3 - The effect of a five-week cafeteria diet after weaning on the density of dendritic spines in the hippocampus and striatum of young rats
sahar Molaei Mahsa Jafarinejad Farzaneh Ganji Hamid Sepehri Zahra NazariIntroduction & Objective: Feeding with a cafeteria diet resulted in increased total body weight and obesity. This research aims to evaluate the effect of a cafeteria diet on the density of dendritic spines of hippocampal and striatum neurons from the end of in MoreIntroduction & Objective: Feeding with a cafeteria diet resulted in increased total body weight and obesity. This research aims to evaluate the effect of a cafeteria diet on the density of dendritic spines of hippocampal and striatum neurons from the end of infancy to the beginning of puberty. Materials & Methods: 22-day-old male and female Wistar rats that passed through infancy were randomly divided into two control and cafeteria groups (n=6). The control group had access to standard rat food, but the cafeteria group received a cafeteria diet in addition to standard food for up to 30 days. During the treatment, the rats of both groups were weighed every week. After five weeks after the start of the treatments, the brains of the mice were extracted and prepared for Golgi staining by the Rapid Golgi method. Results: Our results showed that the body weight increased significantly in the cafeteria group compared to the control group (P<0/01). In addition, the results showed that the cafeteria diet significantly reduces the density of dendritic spines in the hippocampus (P<0/01) and striatum (P<0/05) compared to controls. Conclusion: According to the results of the present study, the reduction of dendritic spines in the hippocampus and striatum, two important structures in cognitive behaviors, may cause memory and learning disorders observed in people consuming a high-fat diet. Manuscript profile -
Open Access Article
4 - Evaluation of hot crack sensitivity and mechanical properties of ER310 welding metal in 304 stainless steel welding joints by applying electromagnetic vibration
mohammad amin ghadam dezfouli reza dehmolaei seyed reza alavi zaree -
Open Access Article
5 - Study on the role of age, sex and season on the prevalence of fascioliasis and dicrocoeliasis in animals slaughtered in Tabriz slaughterhouse
Nasser Hajipour Hadi Valizadeh Parviz HassanzadehLiver trematodes, including Fasciola and Dicrocoelium species, are zoonotic parasites that cause high mortality and economic losses in ruminants. This study aimed to investigate the effect of age, sex, and season on the prevalence of fasciolosis and MoreLiver trematodes, including Fasciola and Dicrocoelium species, are zoonotic parasites that cause high mortality and economic losses in ruminants. This study aimed to investigate the effect of age, sex, and season on the prevalence of fasciolosis and dicrosliosis in slaughtered animals in the Tabriz slaughterhouse. During two years, livers of 4150 cows, 500 buffaloes, 2000 goats, and 5000 sheep were examined for the presence of Fasciola hepatica, Fasciola gigantica, and Dicrocoelium dendriticum by incisions on the liver and ocular observation. The results showed that 5.4%, 16%, and 6% of slaughtered cows, sheep, and goats were infected with liver trematodes (P<0.05), respectively. Of the 500 buffaloes studied, no liver trematode was isolated. The prevalence of parasitic infection in all three animals increased significantly with the age (P<0.05). In female cows and sheep, the rate of liver trematode infection was significantly higher than in males (P<0.05). The highest and lowest prevalence was observed in summer in spring, respectively. The highest frequency of parasites and severity of infection in all studied animals was related to Dicrocoelium dendriticum and the lowest was related to Fasciola gigantica (P<0.05). Based on the market day price, the number of economic losses due to the condemnation of liver of cows, sheep, and goats due to trematode infections were estimated at 402,240,000 (3656.72 USD), 576,576,000 (5241.6 USD), and 28,545,000 (259.5 USD) RIAL, respectively. Due to the history of the human fascioliasis epidemic and economic damage caused by liver condemnation in this area, effective control methods are suggested. Manuscript profile -
Open Access Article
6 - Retrospective study on the prevalence of Hydatid cyst, Fasciola species and Dicrocelium dendriticum in the liver of sheep and goats slaughtered in Saveh slaughterhouse, Markazi province and the estimation of economic losses caused by their liver condemnation from 2014 to 2020
Nasser HajipourSome zoonotic parasites such as Hydatid cyst, Fasciola species and Dicrocelium dendriticum cause death and economic losses in ruminants. The aim of this study was to investigate the prevalence rate of liver parasites in sheep and goats slaughtered in Saveh slaughterhous MoreSome zoonotic parasites such as Hydatid cyst, Fasciola species and Dicrocelium dendriticum cause death and economic losses in ruminants. The aim of this study was to investigate the prevalence rate of liver parasites in sheep and goats slaughtered in Saveh slaughterhouse and to estimate the economic losses caused by their condemnation. In a retrospective study, from April 2014 to April 2020, a total of 58,699 animals including 13,044 goats and 45,655 sheep were inspected in Saveh slaughterhouse for liver contamination with Hydatid cyst, Fasciola species and Dicrocelium dendriticum. The results showed that 72.85% of the animals were infected with parasites, 41.18%, 28.08%, and, 3.58% were infected with Dicrocelium dendriticum, Hydatid cyst, and Fasciola species, respectively. There was a statistically significant. The rate of infection with Dicrocelium dendriticum, Hydatid cyst and Fasciola species was 21.70%, 17.44%, and 1.33% in sheep and 16.48%, 10.64%, and 2.25% in goats, respectively. Statistically, the prevalence rate of liver infection with seasons was not significant except for 2015. The economic losses caused by the condemnation of the liver of slaughtered sheep and goats were estimated at 23,324,560,000 Rials ($241,330.16). With the high prevalence of parasitic diseases in small ruminants in the region and the economic losses caused by the condemnation of infected livers, and due to the fact that these diseases are zoonotic, it is crucial to use appropriate management methods to prevent or control the disease by competent authorities. Manuscript profile -
Open Access Article
7 - اثر تجویز صمغ گیاه کندر (Boswellia serrata Triana & Planch) در دوره شیردهی بر مورفولوژی نورون های هیپوکامپی موالید موش صحرایی
محمد حسینی شریف آباد ابراهیم اسفندیاریمقدمه و هدف: کندر صمغ گونه­ Boswellia serrata است که طی سالیان دراز در طب سنتی برای افزایش حافظه افراد مسن و نیز مادران باردار برای افزایش هوش و حافظه فرزندان خود تجویز می شده است. با این حال تاکنون مستندات علمی اندکی در این رابطه موجود است. در این مطالعه با استفاده Moreمقدمه و هدف: کندر صمغ گونه­ Boswellia serrata است که طی سالیان دراز در طب سنتی برای افزایش حافظه افراد مسن و نیز مادران باردار برای افزایش هوش و حافظه فرزندان خود تجویز می شده است. با این حال تاکنون مستندات علمی اندکی در این رابطه موجود است. در این مطالعه با استفاده از مدل حیوانی موش بزرگ آزمایشگاهی(رت)، تغییرات مورفولوژیکی نورون­های هیپوکامپوس که مرکز مهم مغزی در روند یادگیری و حافظه می باشد متعاقب تجویز مادری کندر در سه هفته دوره شیردهی بررسی شد. روش تحقیق: موش­های صحرایی نر دو ماهه نژاد ویستار که به مادران آن­ها در دوره شیردهی به­مدت سه هفته به­صورت روزانه mg/kg100 عصاره آبی کندر خورانده شده بود را عمیقاً بی­هوش کرد و با تزریق محلول ثابت کننده از راه قلب، مغز را ثابت نموده و از جمجمه خارج گردید. سپس آن را به دو نیم­کره تقسیم نموده و نیم­کره راست برای مطالعه مورفومتری انتخاب و مقاطع عرضی از کل هیپوکامپوس بریده شد. تعداد انشعابات و قطعات دندریتی با استفاده از روش Sholl شمرده شد. نتایج و بحث: تحلیل آماری داده­ها نشان داد که تجویز کندر در دوره شیردهی تعداد قطعات و انشعابات دندریتی سلول­های هرمی شاخ آمون هیپوکامپوس موالید رت را افزایش می دهد. اما تفاوت معنی داری از لحاظ طول دندریت سلول­های هرمی در گروه­های آزمایش و شاهد وجود نداشت. بر اساس این یافته ها پیشنهاد می­شود که تجویز مادری کندر در دوره شیردهی، شاخه های دندریتی در هیپوکامپوس را افزایش می­دهد و می­توان نتیجه گرفت که چنین تغییرات مورفولوژیکی منجر به افزایش تعداد تماس­های سیناپسی می­شود و این یکی از مبانی افزایش حافظه به دلیل تجویز کندر را فراهم می کند. توصیه کاربردی /صنعتی: با توجه به یافته های این مطالعه و سایر مطالعات پیشین ما مبنی بر تأثیر مصرف کندر در فراهم نمودن بستر مورفولوژیکی لازم برای افزایش قوای یادگیری و حافظه پیشنهاد می گردد این ماده و مشتقاتش در تحقیقات نوروفیزیولوژیک مورد ارزیابی بیشتر قرار گیرد و نتایج آن در پیش­گیری یا بهبود بیماری­های دژنراتیو عصبی که منجر به فراموشی می شود استفاده شود. Manuscript profile -
Open Access Article
8 - بررسی فرایند همگن سازی آلیاژ جدید Mn-25Ni-5Cr
محسن صادقی حجت اله منصوری مرتضی هادی -
Open Access Article
9 - Culture and proliferation of dendritic cells from mouse bone marrow progenitors
سمانه عرب معصومه معتمدی جمشید حاجتیDendritic cells (DCs) are the most potent antigen-presenting cells that induce and control the immune responses. These cells have the capacity of stimulation different types immune response (type 1 or 2) in exposure to peripheral signals. The aim of this study was DCs c MoreDendritic cells (DCs) are the most potent antigen-presenting cells that induce and control the immune responses. These cells have the capacity of stimulation different types immune response (type 1 or 2) in exposure to peripheral signals. The aim of this study was DCs culture, proliferation and maturation from mouse bone marrow progenitors. Bone-marrow derived DCs (BMDCs) were cultured in the presence of GM-CSF and IL-4. After 5 days, LPS and cholera toxin were added to the culture for another 2 days. Expression of surface molecules and cytokine production in BMDC culture evaluated. The result shown that LPS stimulated DCs were matured. Exposure with CT induce IL-10 and with LPS induce IL-12 production by DCs. These fundings indicate that 7 days culture of mouce bone marrow progenitors can produce professional dendritic cells and with added different components in DCs culture induce appropriate type 1 or 2 of immune responses. Manuscript profile -
Open Access Article
10 - Investigation of the Prevalence of Dicrocolium dendriticum Infection in Sheep and Goat s in Slaughterhouses of Najafabad and Lanjan in Isfahan Province and Evaluation of Its Pathologic Lesions in the Liver
H. Saboktakin Y. Pirali E. MoghtadaieeDicloleosis is the common disease among ruminants that is caused by different dicrocolemia species. This parasite is observed in the bile duct and gallblader of the ruminants and randomly in humans. The economic and veterinary significance of Dicrocoelium is due to its MoreDicloleosis is the common disease among ruminants that is caused by different dicrocolemia species. This parasite is observed in the bile duct and gallblader of the ruminants and randomly in humans. The economic and veterinary significance of Dicrocoelium is due to its direct damage to the liver, resulting in the loss of significant amounts of valuable protein substances from human diets due to the elimination of contaminated liver in slaughterhouses. The intermediate hosts of this parasite are earthworms (the first hosts) and ant Formaica (the second host). In order to investigate the prevalence of Dicrocoelium dendriticum infection in sheep and goat in slaughterhouses of Lenjan and Najafabad for four seasons (autumn-winter, spring and summer) of 131521 sheep livers and 19672 goat livers inspected in Najafabad slaughterhouse, 4660 and 193 sheep and goat livers were infected by dicorrosilum parasites. moreover, of 45713 sheep livers and 3726 goat livers inspected in the Lanjan slaughterhouse, 4281 and 72 sheep and goat livers were infected by Dicrocoelium parasite, respectively. A total of 30 infected liver samples were collected for histopathologic studies and then they were examined after lamination and staining with hematoxylin and eosin method. As a result of liver infections, liver tissue destruction, enlarged connective tissue, bile duct hyperplasia, formation of granuloma, liver tissue necrosis, presence of inflammatory cells in tissue and calcification were observed. Manuscript profile -
Open Access Article
11 - بهبود ریزساختار و خواص مکانیکی آلیاژ آلومینیم A356 به روش کامپوکستینگ
اسماعیل دماوندی سلمان نوروزی سید محمود ربیعیکامپوزیت های آلومینا/آلومینیم به دلیل چگالی پایین و استحکام مکانیکی خوب در صنایعی چون خودروسازی و هوافضا کاربرد دارند. در این پژوهش، اثر همزن مکانیکی در دمای دو فازی مایع- جامد و تزریق ذرات آلومینا با گاز خنثی (آرگون) بر ریزساختار و خواص مکانیکی آلیاژ Al-A356 مورد بررسی Moreکامپوزیت های آلومینا/آلومینیم به دلیل چگالی پایین و استحکام مکانیکی خوب در صنایعی چون خودروسازی و هوافضا کاربرد دارند. در این پژوهش، اثر همزن مکانیکی در دمای دو فازی مایع- جامد و تزریق ذرات آلومینا با گاز خنثی (آرگون) بر ریزساختار و خواص مکانیکی آلیاژ Al-A356 مورد بررسی قرار گرفت. به­منظور دستیابی به بهبود ترشوندگی و توزیع ذرات آلومینا در زمینه، عملیات حرارتی ذرات در دمای 1100 درجه سانتی­گراد به مدت 20 دقیقه قبل از تزریق به دوغاب انجام شد. در این تحقیق، روش کامپوکستینگ جهت تولید کامپوزیت زمینه آلومینیمی تقویت­شده با میکروذرات آلومینا استفاده شد. به منظور ارزیابی خواص مکانیکی آزمون­های سختی، فشار و ضربه انجام شد. نتایج مکانیکی نشان داد که همزدن دوغاب و افزودن ذرات آلومینا موجب بهبود سختی، استحکام فشاری و انرژی ضربه می­شود. بهترین خواص مکانیکی با استفاده از ذرات آلومینا و فرآیند کامپوکستینگ بدست آمد. در نهایت مقادیر سختی، استحکام فشاری و انرژی شکست نمونه حاصل از فرآیند کامپوکستینگ نسبت به نمونه حاصل از ریخته­گری ثقلی به ترتیب 37، 231 و 51 درصد افزایش یافت Manuscript profile -
Open Access Article
12 - Evaluation of Hematological and Biochemical Parameters in Infected Mehraban Sheep with Hydatid Cyst and Hepatitis Trematoda in Hamadan Industrial Slaughterhouse 2015
Heydar Heydari Hamidreza Zahiri Azam Hosseini Parmis Notghi Saeideh Ayneh Azadeh Hosseini Elaheh Shams Hossein vaziniBackground; Livestock is the most important source of human food chain and the main source of protein. Parasitic diseases cause economic damage and have adverse effects on the health of animals and humans.Study plan; In this study, hematologic and biochemical parameters MoreBackground; Livestock is the most important source of human food chain and the main source of protein. Parasitic diseases cause economic damage and have adverse effects on the health of animals and humans.Study plan; In this study, hematologic and biochemical parameters in hepatocyte infected sheep at Hamedan industrial slaughterhouse in 2015 were investigated.Animals studied; 220 Mehraban sheep breed by different ages were randomly collected from Hamedan slaughterhouses. The sheep were divided into four groups: 50 sheep infected with fasciolopsis (first infected group), 50 cases infected with hydatid cyst (second infected group), 20 cases infected with dicrucylose (three infected group) and 100 healthy sheep (control group).Method; The sheep were examined for macroscopic examination for hydatid cyst and hepatic trematoda. The blood sample was taken from the jugular vein of sheep. Blood and serum samples were tested. SPSS software was used to analyze the data.Results; The results showed that between the total number of red blood cells (RBC), mean corpuscular hemoglobin concentration (MCHC), hemoglobin (Hb), Mean Corpuscular Hemoglobin (MCH), mean cell volume (MCV), white blood cell (WBC) ) And aspartate transferase (AST), alanine transferase (ALT), alkaline phosphatase (ALP) enzymes were significantly different in the infected groups than the healthy group (P Manuscript profile
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