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Öğe Acute phase proteins, clinical, hematological and biochemical parameters in dairy cows naturally infected with anaplasma marginale(KAFKAS UNIV, VETERINER FAKULTESI DERGISI, 2012) Coskun, Alparslan; Ekici, Ozlem Derinbay; Guzelbektes, Hasan; Aydogdu, Ugur; Sen, IsmailThe aim of the study was to evaluate acute phase response via Haptoglobin and serum amyloid-A concentrations in dairy cows naturally infected with Anaplasma marginale. The second aim of the study was to determine the changes in clinical, hematological and biochemical parameters in dairy cows naturally infected Anaplasma marginale. A total of 40 dairy cattle suffering from bovine anaplasmosis were included to the study from a dairy cattle herd. A total of 10 healthy dairy cattle were selected for control group. Analysis of acute phase proteins, hematologic analysis and biochemical analysis was performed in this study. Serum haptoglobin and serum amyloid-A concentrations significantly increased in cattle infected with Anaplasma marginale compared to healthy cattle. All cattle in infected group demonstrated clinical signs of anaplasmosis. Significantly decreased red blood cell count, packed cell volume, and hemoglobin concentration were observed in infected cattle compared to the control group. Serum aspartate aminotransferase, alkaline phosphatase, creatinine and bilirubin concentrations were significantly increased in infected cattle compared with the control group. In conclusion, the changes of biochemical and hematological parameters may be indicate of anemia and tissue damage in cattle with anaplasmosis. Serum haptoglobin and serum amyloid-A concentrations could be usefull in evaluate of acute phase response in cattle infected with Anaplasma marginale.Öğe CARDIAC BIOMARKERS IN PREMATURE CALVES WITH RESPIRATORY DISTRESS SYNDROME(AKADEMIAI KIADO RT, 2016) Aydogdu, Ugur; Yildiz, Ramazan; Guzelbektes, Hasan; Coskun, Alparslan; Sen, IsmailThe aim of this study was to determine the clinical relevance of cardiac biomarkers [troponin I and T, creatine kinase-MB fraction (CK-MB) and lactate dehydrogenase (LDH)] in premature calves with respiratory distress syndrome. Seventy premature calves were admitted to the clinic within 24 h after birth. Respiratory distress syndrome was diagnosed in premature calves by clinical examination and venous blood gas analysis. Ten healthy calves, aged 5 days, were used as control. Cardiac troponin I and T were analysed using ELISA and ELFA, respectively. Serum CK-MB and LDH were also analysed in an automatic analyser. The calves had low venous pH, pO(2), O-2 saturation and high pCO(2) values consistent with dyspnoea, hypoxaemia, and inadequate oxygen delivery. Mean serum troponin I, troponin T, CK-MB and LDH levels were increased in the premature calves compared to the control group. In conclusion, the results in this study demonstrated that serum CK-MB, troponin I and troponin T concentrations could be used for evaluating myocardial injury in premature calves with respiratory distress syndrome.Öğe Comparison of the Effectiveness of Halofuginone Lactate and Paromomycin in the Treatment of Calves Naturally Infected with Cryptosporidium parvum(UNIV FED RIO GRANDE DO SUL, 2018) Aydogdu, Ugur; Isik, Nermin; Ekici, Ozlem Derinbay; Yildiz, Ramazan; Sen, Ismail; Coskun, AlparslanBackground: Cryptosporidiosis is one of the most important problems among neonatal ruminants. Cryptosporidium parvum is the agent causing the disease. Cryptosporidium infection, responsible for diarrhea, dehydration, weight loss and death in neonatal ruminants, leads to significant economic losses for producers. In calves naturally or experimentally infected with cryptosporidiosis, many agents have been reported to have therapeutic and protective effects. The objective of this study was to compare the effectiveness of halofuginone lactate and paromomycin in the treatment of calves naturally infected with Cryptosporidium parvum. Materials, Methods & Results: Twenty calves between 7 and 20 days of age and naturally infected were included in the study. There were two different treatment groups in the study. The first group of calves were administered 100 mu g/kg/day halofuginone lactate for 7 days and the second group of calves were administered 100 mg/kg/day paromomycin for 7 days. In addition, antibiotic and vitamin C were applied to all calves. Jugular venous blood samples were obtained pre-treatment and on the 7th day after the treatment. Routine clinical examinations of the calves were performed on days 0, 1, 3, 5 and 7 and rectal stool samples were collected for the detection of Cryptosporidium oocysts. Severe diarrhea, dehydration, depression and weight loss were observed in calves in both treatment groups. A significant decrease (P < 0.05) was observed for both groups in oocyst count on days 3, 5 and 7 compared to days 0 and 1. Improvements in blood parameters, stool characters and clinical scoring of both groups were observed in post-treatment. Discussion: Many pharmaceuticals or compounds have been tested for animal with cryptosporidiosis and only very few of them have shown a partial protective activity in ruminants when used prophylactically. Halofuginone lactate and paromomycin are commonly recommended as both therapeutic and protective agents. However, the effectiveness of the two therapeutic agents in natural infections has not been compared and, in the meantime, recommendations for a rational use are also not sufficiently documented in calves with cryptosporidiosis. Paromomycin is an aminoglycoside antibiotic used to control C. parvum infection in animals. Paromomycin reduces oocyst shedding and the number of days with diarrhea in experimentally infected calves when used prophylactically. Halofuginone lactate is a synthetic quinazolinone with cryptosporidial activity in the merozoite and sporozoite stages of C. parvum. It is recommended for both therapeutic and prophylactic use in cryptosporidiosis. In this study, although paromomycin (100 mg/kg/day for 7 days) and halofuginone lactate (100 mu g/kg/day for 7 days) led to a decrease in oocyst shedding from day 1, a statistically significant decrease (P < 0.05) was observed from day 3. The results of this study show that the decrease in oocyst shedding in both treatment groups, improvements in clinical findings and recoveries in hematologic, blood gas and serum biochemistry values are similar. Even though these drugs do not eliminate the infection, they decrease both the severity of diarrhea and contribute to recovery. In conclusion, the results of this study indicated that halofuginone lactate and paromomycin were effective in the treatment of calves naturally infected with cryptosporidiosis. Therefore, we recommend that both drugs should be used in the treatment of calves naturally infected with Cryptosporidium parvum.Öğe Effects of syringe type and storage conditions on results of equine blood gas and acid-base analysis(AMER VETERINARY MEDICAL ASSOC, 2012) Kennedy, Sarah A.; Constable, Peter D.; Sen, Ismail; Couetil, LaurentObjective-To determine effects of syringe type and storage conditions on blood gas and acid-base values for equine blood samples. Sample-Blood samples obtained from 8 healthy horses. Procedures-Heparinized jugular venous blood was equilibrated via a tonometer at 37 degrees C with 12% O-2 and 5% CO2. Aliquots (3 mL) of tonometer-equilibrated blood were collected in random order by use of a glass syringe (GS), general-purpose polypropylene syringe (GPPS), or polypropylene syringe designed for blood gas analysis (PSBGA) and stored in ice water (0 degrees C) or at room temperature (22 degrees C) for 0, 5, 15, 30, 60, or 120 minutes. Blood pH was measured, and blood gas analysis was performed; data were analyzed by use of multivariable regression analysis. Results-Blood Po-2 remained constant for the reference method (GS stored at 0 degrees C) but decreased linearly at a rate of 7.3 mm Hg/h when stored in a GS at 22 degrees C. In contrast, Po-2 increased when blood was stored at 0 degrees C in a GPPS and PSBGA or at 22 degrees C in a GPPS; however, Po-2 did not change when blood was stored at 22 degrees C in a PSBGA. Calculated values for plasma concentration of HCO3 and total CO2 concentration remained constant in the 3 syringe types when blood was stored at 22 degrees C for 2 hours but increased when blood was stored in a GS or GPPS at 0 degrees C. Conclusions and Clinical Relevance-Blood samples for blood gas and acid-base analysis should be collected into a GS and stored at 0 degrees C or collected into a PSBGA and stored at room temperature. (Am J Vet Res 2012;73:979-987)Öğe Efficacy of oral rehydration therapy solutions containing sodium bicarbonate or sodium acetate for treatment of calves with naturally acquired diarrhea, moderate dehydration, and strong ion acidosis(AMER VETERINARY MEDICAL ASSOC, 2009) Sen, Ismail; Altunok, Vahdettin; Ok, Mahmut; Coskun, Alparslan; Constable, Peter D.Objective-To determine and compare the effects of 4 oral replacement therapy (ORT) solutions on acid-base balance, abomasal emptying rate, and plasma volume expansion in calves with naturally acquired diarrhea and moderate dehydration. Design-Prospective study. Animals-20 calves. Procedures-20 calves up to 45 days of age were randomly allocated (n = 5/group) to receive 2 L of 1 of 4 treatments via oroesophageal intubation: sodium bicarbonate (150 mmol/L or 300 mmol/L) or sodium acetate (150 mmol/L or 300 mmol/L). The 4 test solutions contained acetaminophen (50 mg/kg [22.7 mg/lb]) and 50 g of glucose monohydrate. Jugular venous blood samples were obtained periodically before and after administration of the ORT solution. Abomasal emptying rate was determined by use of the time to maximal plasma acetaminophen concentration. Results-Plasma bicarbonate concentration increased more rapidly in calves administered bicarbonate-containing ORT solutions, whereas the rate of systemic alkalinization, as assessed via blood pH, did not differ consistently among treatments. The 300 mmol/L ORT solutions were emptied at a significantly slower rate from the abomasum than 150 mmol/L ORT solutions, with no difference in emptying rate between acetate and bicarbonate-containing ORT solutions of similar molality. The 300 mmol/L sodium acetate ORT solution significantly increased plasma volume. Conclusions and Clinical Relevance-Clinically important differences in the resuscitative response to 300 mmol/L or 150 mmol/L ORT solutions of sodium acetate or sodium bicarbonate were not identified. (J Am Vet Med Assoc 2009;234:926-934)Öğe The end-systolic wall stress/end-systolic volume index ratio for systolic function in anatolian shepherd dogs with stage b2 degenerative mitral valve disease(KAFKAS UNIV, VETERINER FAKULTESI DERGISI, 2020) Turgut, Kursad; Sen, Ismail; Ince, Mehmet Ege; Naseri, Amir; Suleymanoglu, Havva; Ertan, Merve; Sagmanligil, VedatThis study was performed to evaluate the end systolic wall stress/end-systolic volume index ratio (ESWS/ESV-I) for LV systolic function in Anatolian shepherd dogs (ASHs) with stage B2 degenerative mitral valve disease (DMVD). Thirty-eight adult ASHs with DMVD (experimental group; 20 B1 dogs and 18 B2 dogs) and 30 weight-matched adult healthy ASHs (control group) were used as subjects. There was no overlap for the ESW5/ESV-I ratio (0.83 +/- 0.03, range: 0.61-1.09 for B2 dogs, 1.34 +/- 0.05, range: 1.11-1.89 for B1 dogs, 2.171 +/- 0.0 range: 1.91-3.02 for the control dogs) among the groups. ESWS/ESV-I ratio (<= 1.09) in ASHs with stage B2 DMVD may play a developmental role in left ventricular remodelling and risk factor for development of systolic dysfunction.Öğe Evaluation of acute phase proteins, some cytokines and hemostatic parameters in dogs with sepsis(KAFKAS UNIV, VETERINER FAKULTESI DERGISI, 2015) Ok, Mahmut; Er, Cenk; Yildiz, Ramazan; Col, Ramazan; Aydogdu, Ugur; Sen, Ismail; Guzelbektes, HasanThe aim of this study was to evaluate the alterations in acute phase proteins, cytokines and hemostatic parameters in dogs with sepsis and to determine the importance of these parameters in diagnosis of the sepsis. Thirty dogs with sepsis and 9 healthy dogs were used in this study. Anorexia, depression, lethargy, hyperthermia, tachycardia, tachypnea, congestion in the mucosal membranes, prolonged capillary refill time, and leukocytosis or leucopenia were identified in the dogs with sepsis. The serum interleukin-1 beta (IL-1 beta), tumor necrosis factor alpha (TNF-alpha), interferon gamma (INF-gamma), C-reactive protein (CRP), serum amyloid A (SAA), prothrombin time (PT), activated partial thromboplastin time (aPTT), antithrombin III (AT III), fibrinogen, protein C (PC), and D-dimer levels were measured in all dogs. We found that the serum IL-1 beta, TNF-alpha, INF-gamma, CRP and SAA concentrations were significantly elevated in dogs with sepsis as compared with healthy controls. In addition, the plasma PT and APTT levels were notably prolonged, the plasma fibrinogen, D-dimers and protein C concentrations were significantly increased. However, the antithrombin III activity was significantly decreased in the dogs with sepsis. In conclusion, the results of this study indicate that the SAA, IL-1 beta and TNF-alpha parameters play important roles in the inflammatory process in dogs with sepsis. The hemostatic abnormalities observed in dogs with sepsis may be due to the development of disseminated intravascular coagulation (DIC).Öğe Evidence-Based Use of Prokinetic Drugs for Abomasal Disorders in Cattle(W B SAUNDERS CO-ELSEVIER INC, 2012) Constable, Peter D.; Nouri, Mohammad; Sen, Ismail; Baird, Aubrey N.; Wittek, ThomasAbomasal hypomotility is a prerequisite for abomasal displacement in cattle and is present immediately after surgical correction of left displaced abomasunn or abomasal volvulus. Hypocalcemia, hypokalemia, and hyperinsulinemia should be corrected in cattle suspected to have abomasal hypomotility. The most effective prokinetic for calves and adult cattle suspected to have abomasal hypomotility is erythromycin.Öğe General overview to treatment of strong ion (metabolic) acidosis in neonatal calves with diarrhea(Selçuk Üniversitesi Veterinerlik Fakültesi, 2013) Sen, Ismail; Constable, Peter D.Neonatal buzağı ishallerine bir veya birden daha fazla etken neden olabilir. İshalli buzağılarda strong ion (metabolic) asidozis yaygın olarak gözükür. Strong ion asidozisle ilişkili klinik semptomlar spesifik olmayıp belirsizdir. Fakat strong ion asidozisin şiddetinin tahmininde buzağının yaşı göz önünde bulundurulabilir. Çünkü aynı klinik bulgulara sahip buzağılardan yaşamının ilk haftasındaki buzağılar, bir haftalıktan büyük buzağılara kıyasla daha az asidemiktir. Ayrıca emme refleksi ile baz açığı değeri arasında yakın ilişki bulunmaktadır. Buzağılarda ishalle ilişkili ölümün azaltılmasında en önemli faktörlerden biri uygun oral veya intravenöz sıvıların kullanılmasıdır. Sistemik metabolik asidozisisi düzeltmek için uygun alkalize ajanların kullanılması gerekmektedir. Bikarbonat kandaki H+ iyonu ile direk reaksiyona girdiğinden dolayı, bikarbonat içeren intravenöz sıvılar şiddetli asideminin düzeltilmesinde oldukça etkilidir. Laktatlı ringer veya asetatlı ringer solüsyonlar ise hafiforta derecede metabolik asidozisi düzeltmede tercih edilir.Öğe Hematologic, Blood Gas, Cardiac Biomarkers and Serum Biochemical Parameters in Calves with Atresia Coli and Theirs Relationship with Prognosis(UNIV FED RIO GRANDE DO SUL, 2017) Coskun, Alparslan; Aydogdu, Ugur; Altan, Semih; Erol, Muharrem; Erol, Hanifi; Guzelbektes, Hasan; Sen, IsmailBackground: Atresia coli is an intestinal anomaly. Generally, absence of defecation in calves less than 10 days old, diminishing appetite, progressing abdominal distention and time-developing depression are reported in atresia coli. Although a calf consumes its milk normally in first days, loss of appetite develops over time. Occasional minor pain indications are observed. The objective of this study was to evaluate of hematologic, blood gases, cardiac biomarkers and serum biochemical parameters before operation in calves with atresia coli, and to investigate relationship with prognosis of these parameters. Materials, Methods & Results: Thirty calves with atresia coli and 6 healthy calves for control were used as material. Poor suction reflex, anorexia, dehydration, abdomen-kicking, frequent leg movement, abdominal distension and depression were observed in calves brought to the clinic. Some calves presented swashing sound depending on content of intestines when abdomen was shaken. Intestine atresia was diagnosed by history and clinical examination. After clinical examination, operation was performed. All calves were observed during 10 days after operation. Fifteen of 30 calves died during 10 days after operation. The blood lactate, WBC, LDH and CK-MB levels in non-surviving calves with atresia coli were significantly higher compared to control calves. The venous blood pH level was significantly lower in non-surviving calves compared to surviving calves. In addition, when compared to the control group, the blood pCO(2) level was significantly higher in non-surviving and surviving calves with atresia coli while the pO(2) and O-2 saturation levels were significantly lower. Discussion: In calves with intestinal atresia, hematologic parameters are normal in first 48 h of disease. However, leukocytosis and shift to the left have been reported over time. However, leukocytosis due to peritonitis, bacterial overgrowth, etc. have been reported over time. It was seen that leukocyte numbers of non-surviving calves with atresia coli in this study were significantly higher, but leucocyte increase in surviving calves was seen to be statistically insignificant. Leukocyte increased in non-surviving calves with atresia may be associated with excessive bacterial reproduction and peritonitis. Blood lactate level is a commonly used marker for severity of disease in humans and lactate has a prognostic value in adult horses with colic and foals with critical disease. In this study, lactate level in non-surviving calves with atresia coli was significantly higher with respect to surviving calves and control calves. In this result, lactate can be evaluated as a prognostic indicator in calves with atresia coli. Creatine kinase-MB fraction and troponins are used in determination of cardiac damage in veterinary medicine. The fact that serum blood cTnI and CK-MB levels of non-surviving calves with intestinal atresia in this study were higher than surviving calves with atresia coli and control calves suggested that endotoxemia related cardiac damage may have developed. Surgical operation is necessary in the treatment of intestinal atresia. It was determined that the importance of calves age and colon integrity during time of surgical operation in survival of calves with atresia coli. The studies showed that survival rate in surgical operation conducted on calves under 3 days old was higher than calves over 5 day-old. Average of age of non-surviving calves with atresia coli in this study (4.67 +/- 1.23 days) was higher than average of age of surviving calves with atresia coli (3.27 +/- 0.51 days). It was also observed in our study that elapsed time affected prognosis of calves negatively. Thus, performing surgical operations as soon as possible may raise survival rate of calves with intestinal atresia as stated in previous studies.Öğe The importance of concentrations of sorbitol dehydrogenase and glutamate dehydrogenase and b-mode ultrasonographic examination in the diagnosis of hepatic lipidosis in dairy cows(KAFKAS UNIV, VETERINER FAKULTESI DERGISI, 2013) Ok, Mahmut; Sen, Ismail; Guzelbektes, Hasan; Boydak, Murat; Er, Cenk; Aydogdu, Ugur; Yildiz, RamazanThe aim of this study is to determine the importance of B-mode ultrasonography in the diagnosis of hepatic lipidosis in dairy cows and compare this mode of diagnosis with both the histologic examination of liver biopsy samples and investigation of some biochemical parameters associated with hepatic lipidosis. 15 Holstein cows with moderate hepatic lipidosis and 15 cows with severe hepatic lipidosis and 6 healtyh cows were used as a metarilas. Blood samples were obtained from all cows and analyzed. Liver samples were obtained by biopsy in cattle. The ultrasonographic examination of liver was performed on animal. Serum glutamate dehydrogenase (GDH) and aspartate amino transferase (AST) concentrations were increased in cows with moderate hepatic lipidosis. Serum sorbitol dehydrogenase (SDH), GDH, and AST concentrations were increased in cows with severe hepatic lipidosis. Ultrasonographic examination revealed an increase in diffuse echogenicity of the liver in cows with moderate and severe hepatic lipidosis cows, but the increase was little in moderate hepatic lipidosis. Both serum GDH and SDH levels were found to be increased in severe hepatic lipidosis. However, only the serum GDH level was elevated in moderate hepatic lipidosis. Therefore, both ultrasonographic examination and measurement of specific liver enzymes seem to be beneficial in the diagnosis of hepatic lipidosis.Öğe Influence of ketamine on the cardiopulmonary effects of intramuscular administration of dexmedetomidine-buprenorphine with subsequent reversal with atipamezole in dogs(AMER VETERINARY MEDICAL ASSOC, 2013) Ko, Jeff C.; Barletta, Michele; Sen, Ismail; Weil, Ann B.; Krimins, Rebecca A.; Payton, Mark E.; Constable, PeterObjective-To compare the cardiorespiratory effects of IM administration of dexmedetomidine-buprenorphine (DB) and dexmedetomidine-buprenorphine-ketamine (DBK) in dogs with subsequent reversal with atipamezole. Design-Prospective, randomized crossover study. Animals-5 healthy dogs. Procedures-Dogs were instrumented for cardiac output (CO) measurement and received DB (15 mu g of dexmedetomidine/kg [6.8 mu g/lb] and 40 mu g of buprenorphine/kg [18.2 mu g/lb]) or DBK (DB plus 3 mg of ketamine/kg [1.36 mg/lb]) in randomized order while breathing room air. Atipamezole (150 mu g/kg [68.2 mu g.lb], IM) was administered 1 hour later. Hemodynamic data were collected in the conscious dogs and then at 5, 10, 15, 20, 30, 45, and 60 minutes after drug administration. Lactate concentration was measured in mixed venous blood samples. Oxygen delivery (Do(2)) and oxygen consumption (center dot Vo(2)) were calculated. Results-Heart rate (HR), CO, and Do(2) decreased after DB and DBK administration. The Vo(2) did not change in the DB group but decreased in the DBK group. The HR was, higher in the DBK group than in the DB group throughout the study, but the CO, Do(2), and Vo(2) values were similar for the 2 groups. Blood lactate concentrations remained low (< 1 mmol/L) throughout the study. Arterial hypoxemia and hypercapnea occurred in both groups. Mean arterial blood pressure and pulmonary artery wedge pressure were markedly increased in both groups, but to a greater extent in the DBK group. After atipamezole administration, HR, CO, and Do(2) returned to the baseline values. Conclusions and Clinical Relevance-Adding ketamine to the DB combination allowed dogs to maintain a higher HR and delayed the onset of sinus arrhythmias but failed to provide a significantly higher CO because of a reduction in stroke volume. (J Am Vet Med Assoc 2013;242:339-345)Öğe NMR-Based Plasma Metabolomics at Set Intervals in Newborn Dairy Calves with Severe Sepsis(HINDAWI LTD, 2018) Basoglu, Abdullah; Sen, Ismail; Meoni, Gaia; Tenori, Leonardo; Naseri, AmirThe aim of this first study was to reveal the new potential biomarkers by a metabolomics approach in severe septic calves. Sepsis is a common cause of morbidity and mortality in newborn dairy calves. The main challenges with the use of biomarkers of sepsis in domestic animals are their availability, cost, and time required to obtain a result. Metabolomics may offer the potential to identify biomarkers that define calf sepsis in terms of combined clinical, physiological, and pathobiological abnormalities. To our knowledge, this is the first study presenting an NMR- (nuclear magnetic resonance-) based plasma metabolomics at set intervals in neonatal septic calves. Twenty neonatal dairy calves with severe sepsis and ten healthy calves were used. Hematological and biochemical health profiles were gathered in plasma samples at set intervals. Similarly, NMR spectra were acquired. All diseased animals (except one) died after 72 hours. Clinical and laboratory results were in accordance with those of severe septic animals. Multivariate analysis on NMR plasma spectra proved to be an excellent tool for faster identification of calves with severe sepsis from healthy animals. The NMR-based metabolomic profile may contribute to the better understanding of severe sepsis in newborn calves.Öğe POST-PARTURIENT HAEMOGLOBINURIA IN THREE DAIRY COWS. A CASE REPORT(NATL VETERINARY RESEARCH INST, 2009) Ok, Mahmut; Guzelbektes, Hasan; Sen, Ismail; Coskun, Alparslan; Ozturk, Aliye SagkanThe changes in some biochemical and haematological parameters in three cows with post-parturient haemoglobinuria were described. The animals were 4, 6, and 7 years of age. These cows had calved in the autumn. Post-parturient haemoglobinuria in the cattle occurred at a post-partum of about 3 weeks. The cows received phosphorus supplementation and supportive treatment. The mean serum phosphorus level in the affected cows was significantly lower compared with healthy cows. In the meantime, the blood RBC, PCV, MCHC, and Hb values were also significantly lower compared with healthy cows. In conclusion, the deficiency of phosphorus could be responsible for the development of post-parturient haemoglobinuria in the cows.Öğe Quantification of Mitral Regurgitation in Anatolian Shepherd Dogs with Asymptomatic Degenerative Mitral Valve Disease(UNIV AGRICULTURE, FAC VETERINARY SCIENCE, 2016) Turgut, Kursad; Koc, Yilmaz; Guzelbektes, Hasan; Naseri, Amir; Ince, Mehmet Ege; Sen, IsmailDegenerative mitral valvular disease (DMVD) is the most frequent cardiac disease, causing mitral regurgitation (MR) in dogs. The purpose of this study was to compare the ratio of the regurgitant jet area (RJA) to the left atrial area (LAA) (RJA/LAA) with subtracting method to quantify regurgitant volume (RegV) and regurgitant fraction (RF) in asymptomatic Anatolian Shepherd Dogs (ASHs) with DMVD. Thirty-eight ASHs with DMVD were used as experimental group. The control group consisted of 35 healthy ASHs. In 38 ASHs with DMVD (20 B1 dogs and 18 B2 dogs), the severity of MR was assessed by RJA/LAA and subtraction method. No differences were noted between the assays measuring the severity of MR by chi 2 analysis. The observed agreement between the assays was 81% for RJA/LAA vs RegV and was 73% for RJA/LAA vs RF, and the kappa statistic values for RJA/LAA vs RegV and for RJA/LAA vs RF were 0.63 (substantial agreement) and 0.50 (moderate agreement), respectively. Our results indicate that each quantification method was valuable to estimate the acuteness of the disease in ASHs with MR and all were in good accordance with the echocardiographic heart size and N-terminal Pro-Brain Natriuretic Peptide (NT-proBNP) measurements. Therefore, the each of these non-invasive methods may be functional to serially estimate the acuteness of MR in DMVD in order to monitor the progression of disease. Future studies have to evaluate, if these will be useful to anticipate the risk or time of decompensation in asymptomatic dogs. (C) 2016 PVJ. All rights reservedÖğe Relationship between the degree of dehydration and the balance of acid-based changes in dehydrated calves with diarrhoea(NATL VETERINARY RESEARCH INST, 2007) Guzelbektes, Hasan; Coskun, Alparslan; Sen, IsmailThe aim of the study was to investigate acid-base changes and to determine some serum biochemical parameters in dehydrated calves with diarrhoea according to the degree of dehydratation. Thirty diarrhoeic dehydrated calves submitted to treatment in the university clinic, were used in the study. The calves were accessed as suitable for this study, if they were moderately or severely dehydrated according to clinical symptoms. All sick calves had the usual yellow and watery diarrhoea. Calves with 4% to 8% dehydration (moderate) had a weak suckle reflex, dry mucous membranes, warm mouth and partly good muscular tone. Calves with 10% and above dehydration (severe) were unable to stand, and had no suckling reflex and cold mouth. The mean pH, base excess, chloride (only severely dehydrated group) and sodium were significantly decreased in both moderately and severely dehydrated groups. On the other hand, potassium, phosphorus, HCO3- and anion gap levels were increased, compared to that of the control group. Results of this study showed that there was a relationship between the base excess and anion gap, with a degree of clinical dehydration. However, there may not be an exact correlation between the degree of dehydration and the severity of acidosis. Based on the clinical symptoms, the results of this study could be a useful tool under field conditions, in estimating the base excess in diarrhoeic dehydrated calves, when acidosis therapy is needed.Öğe Serum gastrin in dogs with acute or chronic gastritis and positive or negative for Helicobacter sp in the stomach(NATL VETERINARY RESEARCH INST, 2008) Guzelbektes, Hasan; Coskun, Alparslan; Ortatatli, Mustafa; Sen, IsmailThe relationship between gastrin levels and presence of Helicobacter-like organisms (HLO) in dogs with acute or chronic gastritis was investigated. For this purpose, a total of 52 crossbred Kangal Dogs aging 2-5 years were used; including 12 dogs with acute gastritis, 25 dogs with chronic gastritis, and 15 healthy dogs. Blood samples were collected from the vena cephalica. Serum gastrin levels were measured using commercial competitive binding radioimmunoassay. HLO were found in 64%, 58.3%, and 60% of animals with chronic gastritis or acute gastritis, and controls, respectively. The gastrin levels in dogs with chronic gastritis were higher than in those with acute gastritis and controls. There were no significant differences between the gastrin levels in all groups, with regard to HLO positive versus HLO negative dogs. In conclusion, HLO incidence was generally found in high levels in all the dogs. However, HLO did not primarily affect the stomach mucosal damage. In the mean time, there was no relation between the levels of serum gastrin in dogs with gastritis, either being HLO positive or negative. The results of the study showed that higher gastrin levels in dogs with gastritis were related to severe gastric lesions and mucosal damage.
