@article { author = {Mansouri, Esrafil and Basgen, John and Saremy, Sadegh}, title = {The effects of pomegranate extract on normal adult rat kidney: A stereological study}, journal = {Veterinary Research Forum}, volume = {7}, number = {1}, pages = {1-6}, year = {2016}, publisher = {Faculty of Veterinary Medicine, Urmia University}, issn = {2008-8140}, eissn = {2322-3618}, doi = {}, abstract = {Pomegranate (Punica granatum L.) has been used widely in the traditional medicine of various civilizations for more than 5000 years. The pomegranate tree has several parts; each part has useful medicinal effects. Previous studies have demonstrated the antibacterial, antioxidant, and anti-inflammatory properties of pomegranate. The aim of the present study was to determine whether administration of pomegranate extract could result in morphometric changes in the kidneys of rats. Eighteen male rats (180-200 g) were divided into three groups that received either: G1, distilled water; G2, 250 mg kg-1 pomegranate extract; and G3, 500 mg kg-1 pomegranate extract via oral gavages daily for eight weeks. At the end of eight weeks, the rats were euthanized and their kidneys were removed and processed for morphometric analyses. In rats received pomegranate extract, the kidney weight, kidney weight/body weight ratio, cortex volume and glomerular volume were increased (p < 0.05), while, medulla volume and the number of glomeruli per kidney did not change. No pathological lesions were observed in the kidney. Therefore, pomegranate hydro-alcoholic extract at doses of 250 and 500 (mg kg-1) increased the volume of some parts of the kidney; however, it did not cause any pathological changes in the kidney.}, keywords = {Kidney,Pomegranate,Rat,Stereology}, url = {https://vrf.iranjournals.ir/article_18999.html}, eprint = {https://vrf.iranjournals.ir/article_18999_b2a80f714d3b2c936efe01fa3bdb343b.pdf} } @article { author = {Raeisi, Mojtaba and Tajik, Hossein and Razavi Rohani, Seyed Mehdi and Tepe, Bektas and Kiani, Hossein and Khoshbakht, Rahem and Shirzad Aski, Hesamaddin and Tadrisi, Hamed}, title = {Inhibitory effect of Zataria multiflora Boiss. essential oil, alone and in combination with monolaurin, on Listeria monocytogenes}, journal = {Veterinary Research Forum}, volume = {7}, number = {1}, pages = {7-11}, year = {2016}, publisher = {Faculty of Veterinary Medicine, Urmia University}, issn = {2008-8140}, eissn = {2322-3618}, doi = {}, abstract = {Listeria monocytogenes is one of the major causes of infections in developing countries. In this study, chemical composition and anti-listerial effect of the essential oil of Zataria multiflora Boiss. alone and in combination with monolaurin were evaluated at different pH values (5, 6, and 7) and temperatures (5 ˚C and 30 ˚C). Chemical composition of Zataria multiflora Boiss. essential oil was evaluated by gas chromatography-mass spectrometry (GC-MS) analysis. Minimum inhibitory concentration (MIC) of the essential oil and monolaurin were determined using microbroth dilution method and the interactions of essential oil and monolaurinwere determined by the evaluation of fractional inhibitory concentrations (FIC) index.Carvacrol (63.20%) and thymol (15.10%) were found as the main components of the essential oil. The MIC values of the oil and monolaurin at pH 7 and 30 ˚C were measured as 312.50 µg mL-1 and 125.00 µg mL-1, respectively. Combination of monolaurin and Z. multiflora essential oil were found to act synergistically (FIC index < 0.5) against L. monocytogenes under different pH and temperature conditions. Decrease in the pH and temperature values have increased the anti-listerial activity of monolaurin and the essential oil. The lowest MIC value of monolaurin and essential oil was observed at pH 5 and 5 ˚C. According to our results, the oil alone or in combination with monolaurin at low pH and temperature conditions showed a promising inhibitory effect on L. monocytogenes.}, keywords = {essential oil,Listeria monocytogenes,Minimum inhibitory concentration,Monolaurin,Zataria multiflora Boiss}, url = {https://vrf.iranjournals.ir/article_19005.html}, eprint = {https://vrf.iranjournals.ir/article_19005_66fafbe65851bbf59a105e54211758ab.pdf} } @article { author = {Babaei, Sakine and Rahimi, Shaeban and Karimi Torshizi, Mohammad Amir and Tahmasebi, Golamhosein and Khaleghi Miran, Seyed Naser}, title = {Effects of propolis, royal jelly, honey and bee pollen on growth performance and immune system of Japanese quails}, journal = {Veterinary Research Forum}, volume = {7}, number = {1}, pages = {13-20}, year = {2016}, publisher = {Faculty of Veterinary Medicine, Urmia University}, issn = {2008-8140}, eissn = {2322-3618}, doi = {}, abstract = {Effect of ethanolic extract of propolis, royal jelly, honey and bee pollen in comparison with virginiamycin (as growth promoter antibiotic) as regards the performance and immune system of Japanese quail were assessed. We used 256 mixed-sex quail chicks in a completely randomized design by eight treatments, including control, ethanolic extract of propolis 1000 (PE1) and 5000 (PE2) mg kg-1, pollen powder 1000 (PO1) and 5000 (PO2) mg kg-1, royal jelly 100 mg kg-1 (RJ), honey 22 g L-1 of drinking water (H) and virginiamycin 150 mg kg-1 (V), and four replicates of eight birds in each replication for 42 days. There was significant differences for weight gain (WG), feed intakes (FI) and feed conversion ratio (FCR) between experimental groups. In addition, WG in V treatment (18.82%), H and PO2 treatments (16.87%) and RJ treatment (12.00%) were significantly higher than to control group (p < 0.01). Significantly higher values of FCR were recorded in control group while group PE2 exhibited a significant decrease for 1 to 42 day (p < 0.05). The results of effect of bee products on antibodies titer showed an increase in theNewcastle disease (ND) titer when compared with control and virginiamycin groups (p < 0.01). There was significant difference in antibody production against avian influenza (AI) and sheep red blood cells (p < 0.01). Significant differences were observed in heterophils to lymphocytes ratio among PE1, PE2, PO1 and PO2 with V and control groups (p < 0.01).}, keywords = {Cell mediated immunity,Feed conversion,Honey bees products,Humoral immunity}, url = {https://vrf.iranjournals.ir/article_19009.html}, eprint = {https://vrf.iranjournals.ir/article_19009_3cfe58f0e4c2d359a012f671e8656c23.pdf} } @article { author = {Azad-Tirgan, Mahboobeh and Sarrafzadeh-Rezaei, Farshid and Malekinejad, Hassan and Hobbenaghi, Rahim and Heshmatian, Behnam}, title = {Evaluation of tendon healing using fibroblast like synoviocytes in rabbits: A biomechanical study}, journal = {Veterinary Research Forum}, volume = {7}, number = {1}, pages = {21-26}, year = {2016}, publisher = {Faculty of Veterinary Medicine, Urmia University}, issn = {2008-8140}, eissn = {2322-3618}, doi = {}, abstract = {Tendon never restores the complete biological and mechanical properties after healing. Several techniques are available for tissue-engineered biological augmentation for tendon healing like stem cells. Recently, synovium has been investigated as a source of cells for tissue engineering. In the present study, we investigated potentials of fibroblast like synoviocytes (FLSs) in tendon healing. Sixteen rabbits were divided randomly into control and treatment groups. One rabbit was used as a donor of synovial membrane (synovium). The injury model was unilateral complete transection through the middle one third of deep digital flexor tendon (DDFT). Subsequently, the tendon stumps were sutured with 3/0 nylon. In treatment group, 0.1 mL phosphate-buffered saline (PBS) solution containing 1 × 106 nucleated cells of FLSs was injected intratendinously at both tendon stumps just next to incision line. In control group, 0.1 mL PBS without FLSs was used for intratendinous injection. Model animals were euthanized at eight weeks, DDFTs were harvested and prepared for biomechanical study. Results of study showed that, there was no significant differences in biomechanical parameters values between FLSs treated and control groups. In conclusion, intratendinous injection of FLSs did not improve biomechanical properties during eight weeks in rabbit.}, keywords = {Biomechanical properties,Fibroblast like synoviocytes,Rabbit,Tendon}, url = {https://vrf.iranjournals.ir/article_19010.html}, eprint = {https://vrf.iranjournals.ir/article_19010_b25b0ababdff3f06eb4cce6f36ce21f7.pdf} } @article { author = {Kadivar, Ali and Heidari Khoei, Heidar and Hassanpour, Hossein and Ghanaei, Hamid and Golestanfar, Arefeh and Mehraban, Hossein and Davoodian, Najmeh and Dehghani Tafti, Roohollah}, title = {Peroxisome proliferator-activated receptors (PPARα, PPARγ and PPARβ/δ) gene expression profile on ram spermatozoa and their relation to the sperm motility}, journal = {Veterinary Research Forum}, volume = {7}, number = {1}, pages = {27-34}, year = {2016}, publisher = {Faculty of Veterinary Medicine, Urmia University}, issn = {2008-8140}, eissn = {2322-3618}, doi = {}, abstract = {Peroxisome proliferator-activated receptors (PPARs) are a member of nuclear receptors superfamily, which mainly regulate the expression of target genes involved in lipid and energy metabolism. These receptors are divided to three isotypes: PPARα, PPARγ and PPARβ/δ. Each isotype has a distinct tissue distribution relating to the distinct functions. In this study, the mRNA abundance for PPARα, PPARγ and PPARβ/δ was evaluated and compared with high and low motile ram spermatozoa. Semen samples from 6 adult rams were fractionated on a two layer discontinuous Percoll gradient to high and low motile sperm and quantitative parameters of sperm motility were determined by CASA. Total RNA was extracted and the mRNA abundance for each gene was measured by relative quantification technique with Real time PCR. The levels of three isotypes of PPAR transcripts were significantly higher in high motile semen samples using quantitative RT-PCR. Some of sperm motility indices were also significantly correlated with PPARα and PPARγ relative expression. This study revealed the novel association of PPAR gene isotypes with sperm motility. Data from our study suggested PPARs are one of the possible factors that can be studied in male infertility.}, keywords = {Gene expression,Peroxisome proliferator-activated receptors,Ram,Sperm motility}, url = {https://vrf.iranjournals.ir/article_19011.html}, eprint = {https://vrf.iranjournals.ir/article_19011_0d55d91283b4e979c16fb1d8a7dd8bfe.pdf} } @article { author = {Mohammadi, Vahid and Anassori, Ehsan and Jafari, Shoja}, title = {Measure of energy related biochemical metabolites changes during peri-partum period in Makouei breed sheep}, journal = {Veterinary Research Forum}, volume = {7}, number = {1}, pages = {35-39}, year = {2016}, publisher = {Faculty of Veterinary Medicine, Urmia University}, issn = {2008-8140}, eissn = {2322-3618}, doi = {}, abstract = {Makouei sheep is one of the famous breeds in Iran which is reared in Azerbaijan province for their meat, milk and wool. Fifty clinically healthy Makouei ewes were selected to study the variations in energy-related blood metabolites during peri-partum period. Blood was collected from Jugular vein from each sheep on day 7 before the expected lambing time, day of parturition and also day 7 postpartum to determine total protein, albumin, urea, cholesterol, glucose, triglyceride, β-hydroxybutyrate (BHB) and non- esterified fatty acid (NEFA) levels. Serum total protein and albumin concentrations were gradually decreased during pre-partum period and reached the lowest level after parturition (p > 0.05). Blood urea concentration was significantly decreased to the lowest level at parturition (p < 0.05). Serum cholesterol and triglycerides were gradually decreased and reached low levels after lambing (p < 0.05). Serum glucose concentrations were significantly lower at pre-partum period than post-partum (p < 0.05). The serum NEFA and BHB concentrations were higher before lambing and thereafter decreased (p < 0.05). Current findings regarding the blood parameters may expand our knowledge for the diagnosis and prognosis of reproductive and metabolic diseases in Makouei sheep during these phases.}, keywords = {Beta-hydroxybutyrate,Blood metabolites,Makouei sheep,Non- esterified fatty acids}, url = {https://vrf.iranjournals.ir/article_19036.html}, eprint = {https://vrf.iranjournals.ir/article_19036_3265fd4e8b7ef3486b5a83a7cc2e4d9b.pdf} } @article { author = {Fatahian Dehkordi, Rahmat-Allah and Ghahremani, Poria}, title = {Developmental study of rectum in broiler chicken: A stereological and morphometrical study}, journal = {Veterinary Research Forum}, volume = {7}, number = {1}, pages = {41-45}, year = {2016}, publisher = {Faculty of Veterinary Medicine, Urmia University}, issn = {2008-8140}, eissn = {2322-3618}, doi = {}, abstract = {The objective of this study was to investigate development of the weight and the morphological development of the rectum in broiler chickens. Twenty broiler chickens (Ross 308) were used in this experiment and they were 12, 20, 35 and 44 days of age. Samples from the rectum of chicks were sectioned in an unbiased manner and examined quantitatively using stereology. In addition, the weight of both body (BW) and rectum and also rectum weight as a proportion of BW, height and width of the villi and thickness of rectum wall were measured. The results revealed that the body and rectum weight were increased with age. The greatest rectum weight as a proportion of BW was observed on day 20. An increase in height and width of the villi during the study period were obtained. The increase was more significant on days 35 and 44 than on days 12 and 20 (p < 0.05). There were significant difference in thickness of tunica mucosa, submucosa and muscular layer of the rectum on day 20 compared to day 35 (p < 0.05). The increase in the volume density of the wall, tunica mucosa and tunica muscular was greater on day 20 than on day 35. However, significant differences were observed in volume density of this layers between days 35 and 44 compared to days 12 and 20 (p < 0.05).}, keywords = {Broiler chicken,Developmental period,Morphometrical study,Rectum}, url = {https://vrf.iranjournals.ir/article_19037.html}, eprint = {https://vrf.iranjournals.ir/article_19037_aa9e907db4d1a4abf9f78dfd62f9ad17.pdf} } @article { author = {Moradi-Arzeloo, Masoumeh and Farshid, Amir Abbas and Tamaddonfard, Esmaeal and Asri-Rezaei, Siamak}, title = {Effects of histidine and vitamin C on isoproterenol-induced acute myocardial infarction in rats}, journal = {Veterinary Research Forum}, volume = {7}, number = {1}, pages = {47-54}, year = {2016}, publisher = {Faculty of Veterinary Medicine, Urmia University}, issn = {2008-8140}, eissn = {2322-3618}, doi = {}, abstract = {In the present study, we investigated the effects of histidine and vitamin C (alone or in combination) treatments against isoproterenol (a β-adrenergic receptor agonist)-induced acute myocardial infarction in rats. We used propranolol (a β-adrenergic receptor blocker) to compare the results. Rats were given intraperitoneal injections of histidine (40 mg kg-1) and vitamin C (40 mg kg-1) alone and combined daily for 21 days. Propranolol (10 mg kg-1) was orally administered daily for 10 days (from day 11 to day 21). Myocardial infarction was induced by subcutaneous injections of 150 mg kg-1 of isoproterenol at an interval of 24 hr on days 20 and 21. Blood and tissue samples were taken for histopathological and biochemical evaluations following electrocardiography recording on day 21. Isoproterenol elevated ST segment, increased heart weight, heart rate, serum activities of aspartate transaminase, lactate dehydrogenase, creatine kinase-MB and heart tissue content of malondialdehyde, and decreased R wave amplitude and superoxide dismutase and catalase activities of heart tissue. Necrosis, edema and inflammatory cells infiltration were observed in myocardial tissue sections. Our results indicated that histidine and vitamin C alone, and especially in combination prevent isoproterenol-induced cardiotoxicity and have similar protective effects with propranolol. Cardioprotective effects of histidine and vitamin C may be associated with their ability to reduce free radical-induced toxic effects.}, keywords = {Histidine,Isoproterenol,Myocardial infarction,Propranolol,Vitamin C}, url = {https://vrf.iranjournals.ir/article_19038.html}, eprint = {https://vrf.iranjournals.ir/article_19038_8f0cc873bcb6b9d7a42f5c6014addfca.pdf} } @article { author = {Sabzevari, Sadaf and Razmi, Gholamreza and Naghibi, Abolghasem and Khoshnegah, Javad}, title = {A study of visceral leishmaniasis in owned dogs with dermal lesions in Mashhad area, Khorasan Razavi province}, journal = {Veterinary Research Forum}, volume = {7}, number = {1}, pages = {55-61}, year = {2016}, publisher = {Faculty of Veterinary Medicine, Urmia University}, issn = {2008-8140}, eissn = {2322-3618}, doi = {}, abstract = {Dog is the main reservoir host of visceral leishmaniasis in Iran. The present study was carried out to investigate visceral leishmaniasis in owned dogs with dermal lesions in Mashhad, Khorasan Razavi province. Thirty- nine owned dogs with dermal lesions were selected. During study, four of dogs were euthanized. The dermal smears, blood and tissue samples were collected and examined using parasitological, serological and molecular methods. A total of 39 examined dogs, leishman bodies were microscopically detected in 33.30% (13/39) of dermal smears. The sera samples were tested by indirect immunofluorescent antibody test (IFAT). Antibody against Leishmania infantum was detected in 26.00% (10/39) dogs. According to semi-nested PCR, DNA of Leishmania infantum was detected in 2.50% (1/39) of blood samples and in 75.00 % (3/4) of different tissues of euthanized dogs. BLAST analysis of the sequenced samples indicated a 99.00% similarity with kDNA of Leishmania infantum. Based on the results, it is concluded that visceral leishmaniasis due to L. infantum is distributed among household dogs of this area and it needs more surveillance to control the disease by public health and veterinary authorities.}, keywords = {Dog,Iran,Leishmania infantum,Mashhad}, url = {https://vrf.iranjournals.ir/article_19039.html}, eprint = {https://vrf.iranjournals.ir/article_19039_dffd492d3e263d1c6d7e09d8b718e186.pdf} } @article { author = {Mozafari, Ali Akbar and Shahrooz, Rasoul and Ahmadi, Abbas and Malekinjad, Hassan and Mardani, Karim}, title = {Protective effect of ethyl pyruvate on mice sperm parameters in phenylhydrazine induced hemolytic anemia}, journal = {Veterinary Research Forum}, volume = {7}, number = {1}, pages = {63-68}, year = {2016}, publisher = {Faculty of Veterinary Medicine, Urmia University}, issn = {2008-8140}, eissn = {2322-3618}, doi = {}, abstract = {The aim of the present study was to assess the protective effect of ethyl pyruvate (EP) on sperm quality parameters, testosterone level and malondialdehyde (MDA) in phenylhydrazine (PHZ) treated mice. For this purpose, 32 NMRI mice with the age range of 8 to 10 weeks, weight average 26.0 ± 2.0 g, were randomly divided into four equal groups. The control group (1) received normal saline (0. 1 mL per day) by intraperitoneal injection (IP). Group 2 (PHZ group) was treated with initial dose of PHZ (8 mg 100 g-1, IP) followed by 6 mg 100 g-1 , IP every 48 hr. Group 3, (Group PHZ+EP) received PHZ (according to the previous prescription) with EP (40 mg kg-1, daily, IP). Ethyl pyruvate group (4) received only EP (40 mg kg-1, daily, IP). Treatment period was 35 days. After euthanasia, sperms from caudal region of epididymis were collected and the total mean sperm count, sperm viability, motility and morphology were determined. Testis tissue MDA and serum testosterone levels of all experimental groups were also evaluated. A considerable reduction in mean percentage of number, natural morphology of sperm, sperm motility and viability and serum testosterone concentration besides DNA injury increment among mice treating with PHZ in comparison with control group were observed. However, in PHZ+EP group the above mentioned parameters were improved. This study showed that PHZ caused induction of toxicity on sperm parameters and reduction of testosterone as well as the increment of MDA level and EP as an antioxidant could reduce destructive effects of PHZ on sperm parameters, testosterone level and lipid peroxidation.}, keywords = {Ethyl pyruvate,Mouse,Phenylhydrazine,Sperm parameters,Stress oxidative}, url = {https://vrf.iranjournals.ir/article_19040.html}, eprint = {https://vrf.iranjournals.ir/article_19040_476a3161c1d0915b5712771e042392be.pdf} } @article { author = {Mazaheri Nezhad Fard, Ramin and Vahedi, Seyed Milad and Ashrafi, Iraj and Alipour, Faranak and Sharafi, Golnaz and Akbarein, Hesam and Aldavood, Seyed Javid}, title = {Molecular identification and phylogenic analysis of Bartonella henselae isolated from Iranian cats based on gltA gene}, journal = {Veterinary Research Forum}, volume = {7}, number = {1}, pages = {69-72}, year = {2016}, publisher = {Faculty of Veterinary Medicine, Urmia University}, issn = {2008-8140}, eissn = {2322-3618}, doi = {}, abstract = {One of the most important species of the Bartonella genus is B. henselae that causes a zoonotic infection, cat scratch disease (CSD). The main source of the bacteria is cat and the carrier is Ctenocephalides felis flea. One hundred and forty nail and saliva samples were collected from 70 domestic cats. Positive samples for B. henselae were characterized by polymerase chain reaction (PCR) and sequencing. Sequences of gltA gene were trimmed using BioEdit software and then compared with the sequences of the same gene from B. henselae isolated from cats and humans in GenBank database. Phylogenic tree was constructed using CLC Sequence Viewer software and unweighted pair group method with arithmetic mean (UPGMA) method. Molecular assessments showed that five samples out of 70 nail samples (7.14%) and one sample out of 70 saliva samples (1.42%) were genetically positive for B. henselae. At least an 87.00% similarity was seen between the gene sequences from the current study and the reference sequences from the GenBank database. Phylogenic analysis has shown that strains isolated in this study were grouped in a different haplo group, compared to other strains.Among the Asian countries, the prevalence of the bacteria in Iran was close to that in Japan and Turkey. In conclusion, findings of this study showed the prevalence of B. henselae in Iranian cats which is important due to its public health issues, especially for the immunocompromised pet owners.}, keywords = {Bartonella henselae,Cat,Iran,Zoonosis}, url = {https://vrf.iranjournals.ir/article_19041.html}, eprint = {https://vrf.iranjournals.ir/article_19041_456e3c640c4bcc04230860f43705f4e9.pdf} } @article { author = {Adel, Milad and Safari, Reza and Yaghoubzadeh, Zahra and Fazli, Hassan and Khalili, Elham}, title = {Parasitic infection in various stages life of cultured Acipenser persicus}, journal = {Veterinary Research Forum}, volume = {7}, number = {1}, pages = {73-77}, year = {2016}, publisher = {Faculty of Veterinary Medicine, Urmia University}, issn = {2008-8140}, eissn = {2322-3618}, doi = {}, abstract = {The present study was conducted to evaluate the status of the parasite fauna in Acipenser persicus at different development stages, in order to find prevention protocols for parasitic diseases in this valuable species. For this purpose, sampling from each sex breeder, 10 egg samples, 5-day-old larvae (n = 20), 20-day-old larvae (n = 80) and fingerling of A. persicus (n = 60) released in earthen ponds were done. After the bioassay and preparing wet mount from the internal and external organs, identification was done according to the keys. According to the results, no fauna parasites were isolated from egg samples and 5-day-old larvae; but Trichodina spp. was isolated from 20-day-old larvae. Also, the same protozoan was isolated from fingerling released in earthen ponds, the mean intensity, prevalence and range of contamination by fingerling were higher with compared to 20-day-old larvae. Trichodina sp. and Diplostomum spathaceum were isolated from skin and eyes of females, respectively. However, Trichodina sp. and Ichthyophthirius multifiliis were isolated from skin of male breeders. In this study, no parasites were isolated from internal organs of larves and fingerling but four intestinal parasites included: Cucullanus sphaerocephlaus, Anisakis sp., Skyrjabinopsilus semiarmatus, and Lepto-rhynchoides plagicephalu were isolated from internal organs of breeder. Based on a wide range of parasitic infection observed in various life stages of A. persicus, it seems necessary to consider hygienic and management measures.}, keywords = {Acipenser persicus,Iran,parasite}, url = {https://vrf.iranjournals.ir/article_19044.html}, eprint = {https://vrf.iranjournals.ir/article_19044_715bdfd05bb0e038de103f6af342a40f.pdf} } @article { author = {Nikousefat, Zahra and Hashemnia, Mohammad and Javdani, Moosa}, title = {Large B-cell lymphoma in a dog: A cyto-histopathological evaluation and Immunophenotyping according to WHO classification for canine lymphomas}, journal = {Veterinary Research Forum}, volume = {7}, number = {1}, pages = {79-83}, year = {2016}, publisher = {Faculty of Veterinary Medicine, Urmia University}, issn = {2008-8140}, eissn = {2322-3618}, doi = {}, abstract = {In the present study, we described cyto-histopathological features and immunophenotyping of the large B-cell lymphoma in an 8-year-old mixed breed dog with applying the World Health Organization (WHO) system of classification of canine lymphomas. In fine-needle aspiration (FNA), lymph nodes were involved by neoplastic cells of intermediate to large size with deep blue cytoplasm; consist of centroblasts, immunoblast and medium-sized cells. Histopathologically, the follicles and sinuses of lymph nodes were replaced by sheets of numerous immunoblasts (less than 90.0% of total cells) and centroblasts. Numerous mitotic figures were also observed. Immunohistochemical analysis presented that the neoplastic cells express B-cell phenotype CD20 and CD79a, but do not stain for T phenotype CD3. On the basis of cytology, histopathology and immunohistochemical findings, the present tumor was diagnosed as diffuse large B-cell lymphoma, high-grade centroblastic type (DLBCL-CB) according to WHO histological classification. Applying this classification system for diagnosis of canine lymphomas is very useful and has a high accuracy and consistency. However, further co-operative studies between clinicians and pathologists should be performed, in order to improve the effectiveness of this classification.}, keywords = {Canine lymphomas,Cyto-histopathological features,Immunohistochemistry}, url = {https://vrf.iranjournals.ir/article_19049.html}, eprint = {https://vrf.iranjournals.ir/article_19049_a829fe45b171c7b1f4380aee26ab1dbe.pdf} } @article { author = {Jafari Dehkordi, Afshin and Hoseini, Farzaneh}, title = {Patent ductus arteriosus in a lamb: A case report}, journal = {Veterinary Research Forum}, volume = {7}, number = {1}, pages = {85-88}, year = {2016}, publisher = {Faculty of Veterinary Medicine, Urmia University}, issn = {2008-8140}, eissn = {2322-3618}, doi = {}, abstract = {Patent ductus arteriosus (PDA) is a persistent patency of a vessel normally present in the fetus that connects the pulmonary arterial system to the aorta. The ductus arteriosus fails to close at birth when breathing commences and placental blood circulation is removed. Closure of the ductus arteriosus arises in response to decline pulmonary vascular resistance and increased systemic vascular resistance. This report describes a case of PDA in a two-month-old male lamb with clinical signs of machinery murmur, tachycardia, increase respiratory rate, weakness and ill thrift. Echocardiographic examination and necropsy finding confirmed PDA.}, keywords = {Echocardiography,Lamb,Necropsy,Patent ductus arteriosus}, url = {https://vrf.iranjournals.ir/article_19051.html}, eprint = {https://vrf.iranjournals.ir/article_19051_4ce59e23746c8c250906d8653147fed3.pdf} }