Ayhan Duzler - Academia.edu (original) (raw)
Papers by Ayhan Duzler
Veterinary Research Communications, Dec 23, 2006
The anatomical features of the autonomous nerves, including the greater, lesser and least splanch... more The anatomical features of the autonomous nerves, including the greater, lesser and least splanchnic nerves, were examined in 4 female and 4 male adult pigs (Sus scrofa). The origin and course of these nerves were examined with regard to sex and the side of the body. The greater splanchnic nerve was present in all of the animals included in the study, whereas the lesser splanchnic nerve was present at a rate of 87.5% on the right side and 75% on the left side of the median plane. On the other hand, the least splanchnic nerve was present on the right side at a rate of 62.5% and on the left side at a rate of 37.5%. The greater, lesser and least splanchnic nerves on the right side of the median plane were determined to originate from a more cranial location. Furthermore, these nerves were observed to be longer and larger on the right side in comparison with the left side. Evaluation of the findings revealed no significant difference between both sides of the median plane with regard to the origin, course and dimensions of these nerves. Similarly, no significant difference was detected between sexes.
Journal of Animal and Veterinary Advances, 2014
International journal of 3d printing technologies and digital industry, Dec 31, 2022
Three dimensional (3D) printing technology in veterinary anatomy education is an evolving area pr... more Three dimensional (3D) printing technology in veterinary anatomy education is an evolving area providing accurately, rapidly, and reproducibly anatomical specimens. In this study, 3D printed sheep brain models were produced using magnetic resonance imaging (MRI) scanning, and their effectiveness was compared with cadaveric materials by creating three groups from undergraduate veterinary students. The study was performed when veterinary anatomy lectures in Erciyes University were carried out via live fully online learning platforms in virtual classes like many other universities in the world due the Covid-19 pandemic. Participants were subjected to an approximately 30 minute online lecture on the external and internal anatomy of the sheep brain using cadaveric materials only (n=21, Group 1), 3D printed models only (n=20, Group 2), or a combination of cadaveric materials and 3D printed models (n=20, Group 3) as teaching aids. Online post-tests carried out following the online lectures showed no statistically significant difference between the scores of the groups. Furthermore, online questionnaires conducted after the post-tests demonstrated that 3D printed models helped students learn about sheep brain anatomy. The finding of this study suggests that 3D printed models can be considered as a supplement teaching resource to cadaveric materials in veterinary anatomy education particularly when students are supposed to learn more in a limited time regardless of whether or not the Covid-19 pandemic might end.
2019 Medical Technologies Congress (TIPTEKNO), Oct 1, 2019
Pericardial fluid (PF) is located in the space between the heart and the pericardium surrounding ... more Pericardial fluid (PF) is located in the space between the heart and the pericardium surrounding the heart. PF contains mesothelial cells and leukocytes such as monocytes, lymphocytes, macrophages, and neutrophils. Mesothelial cells are similar to mesenchymal stem cells with their differentiation potential and characteristic features. The number of mesothelial cells not only increases with damage to the heart, but also secrete growth factors to support tissue repair. In this study, 1, 10, 20, 50 ng/mL vascular endothelial growth factor (VEGF) was added to the in vitro cultured cells isolated from bovine pericardial fluid. For this purpose, images of control and VEGF groups on the first, fifth and tenth days were examined by light microscope and it was concluded that 50 ng/mL VEGF is the effective concentration for pericardial fluid cells. 10ng/mL VEGF was determined as effective concentration according to the complexity of the image, skewness and complexity of the histogram.
… Veteriner Fakültesi Dergisi
Özet: Bu çalışmada 24 adet yetişkin Japon bıldırcını (coturnix japonicum) kullanıldı. Çalışmada J... more Özet: Bu çalışmada 24 adet yetişkin Japon bıldırcını (coturnix japonicum) kullanıldı. Çalışmada Japon bıldırcınında cinsiyete ve türe bağlı olarak aorta descendens' in dallanmasının, dağılımının ve seyrinin ortaya konulması amaçlandı. Bu amaçla 12 adet ...
Microscopy Research and Technique, Mar 17, 2023
Turkish Journal of Veterinary & Animal Sciences, 2013
This study examined the lingual papillae of 80-day-old wild pig fetal siblings through macroscopi... more This study examined the lingual papillae of 80-day-old wild pig fetal siblings through macroscopic and light and scanning electron microscopic observations. The results revealed that fungiform papillae were located on every aspect of the tongue except the ventral surface and the center of the dorsal surface. Conical papillae were present on the dorsal surface of the root of the tongue and marginal papillae were observed on the lateral edges of the tip of the tongue. There were 2 vallate papillae on the dorsal and 2 foliate papillae on the lateral aspects of the root of the tongue. The filiform papillae normally seen in the mature stage were not observed at this stage. Taste buds were identified in all the gustatory papillae examined. On the other hand, taste pores were perceived only in the fungiform papillae. The findings acquired will surely contribute to the literature as an essential base for further related research.
Anatomia, Histologia, Embryologia
This study investigated the morphological features of the ventricular system of the brain in Akka... more This study investigated the morphological features of the ventricular system of the brain in Akkaraman sheep in a measured and structural manner. In the study, 24 adults male Akkaraman sheep, which is a common and hornless breed were used. Anatomical features of the ventricular system were determined by latex injection and dissection, acrylic injection and corrosion cast and magnetic resonance imaging. In the measurements, a precise digital calliper, Archimedes' principle, Cavalieri's principle and ITK‐SNAP imaging were used by comparing them with each other. The average weight of fresh sheep brains was 102 g (0.226 lb), the volume 115.8 mL and the length, height and width were 130.78, 40.58 and 70.08 mm, respectively. The olfactoric bulb contained a cavity associated with the lateral ventricle, large enough to be called a ventricle. The cavity of septum pellucidum has a large cavity was observed. However, there was no cerebrospinal fluid in this cavity. The interventricular...
Seizure-european Journal of Epilepsy, Apr 1, 2011
This study was conducted on determining the effects of phenytoin on the skeletal system of the fe... more This study was conducted on determining the effects of phenytoin on the skeletal system of the fetuses of 13 Wistar Albino rats. The female rats were divided into two groups after the vaginal smear test: the group 1 (control group) included 6 individuals, whereas the group 2 (phenytoin group) comprised 7 animals. A dose of 25mg/kg/day phenytoin was administered intraperitoneally to pregnant rats on the 8th-10th days of pregnancy and fetuses were obtained by C-section on the 20th day. A number of 82 fetuses were observed by double staining technique. Their lengths and weights were measured, revealing the statistically significant differences between the two groups (p<0.001). The lengths of the fetuses in the group 2 were determined as to be 14% shorter and the weights 13% lower compared to those in the group 1. Similarly, number of the fetuses obtained in one gestation decreased 9% in the group 2. Ossification of the skull bones in the fetuses of the group 2 was observed eminently to be deteriorated through using dissection microscope and inspection. Costal separation anomaly was observed in the 10 fetuses of the group 2. The separated-laterally located costal components were not attached to the costal arch. Shape malformations in the last two ribs and wide angularity, particularly in the last six ribs, were also determined. This study has documented that intraperitoneal usage of the pheytoin during pregnancy may cause to different skeletal malformations, even with lower doses, in rat fetuses.
Turkish Journal of Veterinary …, 2006
The anatomy of the sternum in avian species differs according to their movement and particularly ... more The anatomy of the sternum in avian species differs according to their movement and particularly flight capability, as well as species and habitat. Various studies aimed at the examination and measurement of the sternum in avian species have been carried out. However, to the authors' knowledge, no study on the correlation between sternal measurements and movement style has been published previously. In this study, the sternums of certain avian species including the red falcon (Buteo rufinus), rooster (Gallus domesticus), drake (Anas platyrhynches), bald ibis (Geronticus eremita), pigeon (Columba livia), white stork (Ciconia ciconia), eagle owl (Bubo bubo), goose (Anser anser) and turkey (Meleagris gallopavo) were investigated as 3 different habitant groups (I-flying, II-swimming and III-walking). Data analysis revealed a correlation between movement style and sternum measurements in avian species. In the swimming birds that were examined, the width (W) of the sternums was greater than the height (H), and W/H ranged between 1.56 and 1.95 mm. In contrast, the height of the sternum was greater than the width in walking birds and W/H was between 0.50 and 0.68 mm. In the flying birds the width and height of the sternum were approximately equal and W/H ranged between 0.96 and 1.35 mm.
Ankara Üniversitesi Veteriner Fakültesi Dergisi, 2000
The celiac artery (arteria celiaca) of eagle owl (Bubo bubo) was studied anatomically by dissecti... more The celiac artery (arteria celiaca) of eagle owl (Bubo bubo) was studied anatomically by dissection methods in this investigation. Celiac artery o.fthe eagle owl doesn't give off only two main ramus (truncus). The celiac artery has nine branches, namely esophageal artery (arteria esophagealis), dorsal proventricular artery (arteria proventriculus dorsalis), ventral proventricular artery (arteria proventricularis ventralis), dorsal gastric artery (arteria gastrica dorsalis), ventral gastric artery (arteria gastrica ventralis), pancreaticoduodenal artery (arteria pancreaticoduodenalis), spleenic arteries (arteriae splenicae or arteriae lienalis), duodenojejunal artery (arteria duodenojejunalis) and hepatic artery (arteria hepatica), in eagle owl. lleocaecal artery (arteria ileocaecalis), right dorsal gastric artery (arteria gastrica dextra dorsalis) and right ventral gastric artery (arteria gastrica dextra ventralis) are not originatedfrom the celiac artery in this bird. The celiac artery of the eagle owl has no branch to colon
International Journal of 3D Printing Technologies and Digital Industry
Three dimensional (3D) printing technology in veterinary anatomy education is an evolving area pr... more Three dimensional (3D) printing technology in veterinary anatomy education is an evolving area providing accurately, rapidly, and reproducibly anatomical specimens. In this study, 3D printed sheep brain models were produced using magnetic resonance imaging (MRI) scanning, and their effectiveness was compared with cadaveric materials by creating three groups from undergraduate veterinary students. The study was performed when veterinary anatomy lectures in Erciyes University were carried out via live fully online learning platforms in virtual classes like many other universities in the world due the Covid-19 pandemic. Participants were subjected to an approximately 30 minute online lecture on the external and internal anatomy of the sheep brain using cadaveric materials only (n=21, Group 1), 3D printed models only (n=20, Group 2), or a combination of cadaveric materials and 3D printed models (n=20, Group 3) as teaching aids. Online post-tests carried out following the online lectures...
Microscopy Research and Technique
Veterinary Research Communications, Dec 23, 2006
The anatomical features of the autonomous nerves, including the greater, lesser and least splanch... more The anatomical features of the autonomous nerves, including the greater, lesser and least splanchnic nerves, were examined in 4 female and 4 male adult pigs (Sus scrofa). The origin and course of these nerves were examined with regard to sex and the side of the body. The greater splanchnic nerve was present in all of the animals included in the study, whereas the lesser splanchnic nerve was present at a rate of 87.5% on the right side and 75% on the left side of the median plane. On the other hand, the least splanchnic nerve was present on the right side at a rate of 62.5% and on the left side at a rate of 37.5%. The greater, lesser and least splanchnic nerves on the right side of the median plane were determined to originate from a more cranial location. Furthermore, these nerves were observed to be longer and larger on the right side in comparison with the left side. Evaluation of the findings revealed no significant difference between both sides of the median plane with regard to the origin, course and dimensions of these nerves. Similarly, no significant difference was detected between sexes.
Journal of Animal and Veterinary Advances, 2014
International journal of 3d printing technologies and digital industry, Dec 31, 2022
Three dimensional (3D) printing technology in veterinary anatomy education is an evolving area pr... more Three dimensional (3D) printing technology in veterinary anatomy education is an evolving area providing accurately, rapidly, and reproducibly anatomical specimens. In this study, 3D printed sheep brain models were produced using magnetic resonance imaging (MRI) scanning, and their effectiveness was compared with cadaveric materials by creating three groups from undergraduate veterinary students. The study was performed when veterinary anatomy lectures in Erciyes University were carried out via live fully online learning platforms in virtual classes like many other universities in the world due the Covid-19 pandemic. Participants were subjected to an approximately 30 minute online lecture on the external and internal anatomy of the sheep brain using cadaveric materials only (n=21, Group 1), 3D printed models only (n=20, Group 2), or a combination of cadaveric materials and 3D printed models (n=20, Group 3) as teaching aids. Online post-tests carried out following the online lectures showed no statistically significant difference between the scores of the groups. Furthermore, online questionnaires conducted after the post-tests demonstrated that 3D printed models helped students learn about sheep brain anatomy. The finding of this study suggests that 3D printed models can be considered as a supplement teaching resource to cadaveric materials in veterinary anatomy education particularly when students are supposed to learn more in a limited time regardless of whether or not the Covid-19 pandemic might end.
2019 Medical Technologies Congress (TIPTEKNO), Oct 1, 2019
Pericardial fluid (PF) is located in the space between the heart and the pericardium surrounding ... more Pericardial fluid (PF) is located in the space between the heart and the pericardium surrounding the heart. PF contains mesothelial cells and leukocytes such as monocytes, lymphocytes, macrophages, and neutrophils. Mesothelial cells are similar to mesenchymal stem cells with their differentiation potential and characteristic features. The number of mesothelial cells not only increases with damage to the heart, but also secrete growth factors to support tissue repair. In this study, 1, 10, 20, 50 ng/mL vascular endothelial growth factor (VEGF) was added to the in vitro cultured cells isolated from bovine pericardial fluid. For this purpose, images of control and VEGF groups on the first, fifth and tenth days were examined by light microscope and it was concluded that 50 ng/mL VEGF is the effective concentration for pericardial fluid cells. 10ng/mL VEGF was determined as effective concentration according to the complexity of the image, skewness and complexity of the histogram.
… Veteriner Fakültesi Dergisi
Özet: Bu çalışmada 24 adet yetişkin Japon bıldırcını (coturnix japonicum) kullanıldı. Çalışmada J... more Özet: Bu çalışmada 24 adet yetişkin Japon bıldırcını (coturnix japonicum) kullanıldı. Çalışmada Japon bıldırcınında cinsiyete ve türe bağlı olarak aorta descendens' in dallanmasının, dağılımının ve seyrinin ortaya konulması amaçlandı. Bu amaçla 12 adet ...
Microscopy Research and Technique, Mar 17, 2023
Turkish Journal of Veterinary & Animal Sciences, 2013
This study examined the lingual papillae of 80-day-old wild pig fetal siblings through macroscopi... more This study examined the lingual papillae of 80-day-old wild pig fetal siblings through macroscopic and light and scanning electron microscopic observations. The results revealed that fungiform papillae were located on every aspect of the tongue except the ventral surface and the center of the dorsal surface. Conical papillae were present on the dorsal surface of the root of the tongue and marginal papillae were observed on the lateral edges of the tip of the tongue. There were 2 vallate papillae on the dorsal and 2 foliate papillae on the lateral aspects of the root of the tongue. The filiform papillae normally seen in the mature stage were not observed at this stage. Taste buds were identified in all the gustatory papillae examined. On the other hand, taste pores were perceived only in the fungiform papillae. The findings acquired will surely contribute to the literature as an essential base for further related research.
Anatomia, Histologia, Embryologia
This study investigated the morphological features of the ventricular system of the brain in Akka... more This study investigated the morphological features of the ventricular system of the brain in Akkaraman sheep in a measured and structural manner. In the study, 24 adults male Akkaraman sheep, which is a common and hornless breed were used. Anatomical features of the ventricular system were determined by latex injection and dissection, acrylic injection and corrosion cast and magnetic resonance imaging. In the measurements, a precise digital calliper, Archimedes' principle, Cavalieri's principle and ITK‐SNAP imaging were used by comparing them with each other. The average weight of fresh sheep brains was 102 g (0.226 lb), the volume 115.8 mL and the length, height and width were 130.78, 40.58 and 70.08 mm, respectively. The olfactoric bulb contained a cavity associated with the lateral ventricle, large enough to be called a ventricle. The cavity of septum pellucidum has a large cavity was observed. However, there was no cerebrospinal fluid in this cavity. The interventricular...
Seizure-european Journal of Epilepsy, Apr 1, 2011
This study was conducted on determining the effects of phenytoin on the skeletal system of the fe... more This study was conducted on determining the effects of phenytoin on the skeletal system of the fetuses of 13 Wistar Albino rats. The female rats were divided into two groups after the vaginal smear test: the group 1 (control group) included 6 individuals, whereas the group 2 (phenytoin group) comprised 7 animals. A dose of 25mg/kg/day phenytoin was administered intraperitoneally to pregnant rats on the 8th-10th days of pregnancy and fetuses were obtained by C-section on the 20th day. A number of 82 fetuses were observed by double staining technique. Their lengths and weights were measured, revealing the statistically significant differences between the two groups (p<0.001). The lengths of the fetuses in the group 2 were determined as to be 14% shorter and the weights 13% lower compared to those in the group 1. Similarly, number of the fetuses obtained in one gestation decreased 9% in the group 2. Ossification of the skull bones in the fetuses of the group 2 was observed eminently to be deteriorated through using dissection microscope and inspection. Costal separation anomaly was observed in the 10 fetuses of the group 2. The separated-laterally located costal components were not attached to the costal arch. Shape malformations in the last two ribs and wide angularity, particularly in the last six ribs, were also determined. This study has documented that intraperitoneal usage of the pheytoin during pregnancy may cause to different skeletal malformations, even with lower doses, in rat fetuses.
Turkish Journal of Veterinary …, 2006
The anatomy of the sternum in avian species differs according to their movement and particularly ... more The anatomy of the sternum in avian species differs according to their movement and particularly flight capability, as well as species and habitat. Various studies aimed at the examination and measurement of the sternum in avian species have been carried out. However, to the authors' knowledge, no study on the correlation between sternal measurements and movement style has been published previously. In this study, the sternums of certain avian species including the red falcon (Buteo rufinus), rooster (Gallus domesticus), drake (Anas platyrhynches), bald ibis (Geronticus eremita), pigeon (Columba livia), white stork (Ciconia ciconia), eagle owl (Bubo bubo), goose (Anser anser) and turkey (Meleagris gallopavo) were investigated as 3 different habitant groups (I-flying, II-swimming and III-walking). Data analysis revealed a correlation between movement style and sternum measurements in avian species. In the swimming birds that were examined, the width (W) of the sternums was greater than the height (H), and W/H ranged between 1.56 and 1.95 mm. In contrast, the height of the sternum was greater than the width in walking birds and W/H was between 0.50 and 0.68 mm. In the flying birds the width and height of the sternum were approximately equal and W/H ranged between 0.96 and 1.35 mm.
Ankara Üniversitesi Veteriner Fakültesi Dergisi, 2000
The celiac artery (arteria celiaca) of eagle owl (Bubo bubo) was studied anatomically by dissecti... more The celiac artery (arteria celiaca) of eagle owl (Bubo bubo) was studied anatomically by dissection methods in this investigation. Celiac artery o.fthe eagle owl doesn't give off only two main ramus (truncus). The celiac artery has nine branches, namely esophageal artery (arteria esophagealis), dorsal proventricular artery (arteria proventriculus dorsalis), ventral proventricular artery (arteria proventricularis ventralis), dorsal gastric artery (arteria gastrica dorsalis), ventral gastric artery (arteria gastrica ventralis), pancreaticoduodenal artery (arteria pancreaticoduodenalis), spleenic arteries (arteriae splenicae or arteriae lienalis), duodenojejunal artery (arteria duodenojejunalis) and hepatic artery (arteria hepatica), in eagle owl. lleocaecal artery (arteria ileocaecalis), right dorsal gastric artery (arteria gastrica dextra dorsalis) and right ventral gastric artery (arteria gastrica dextra ventralis) are not originatedfrom the celiac artery in this bird. The celiac artery of the eagle owl has no branch to colon
International Journal of 3D Printing Technologies and Digital Industry
Three dimensional (3D) printing technology in veterinary anatomy education is an evolving area pr... more Three dimensional (3D) printing technology in veterinary anatomy education is an evolving area providing accurately, rapidly, and reproducibly anatomical specimens. In this study, 3D printed sheep brain models were produced using magnetic resonance imaging (MRI) scanning, and their effectiveness was compared with cadaveric materials by creating three groups from undergraduate veterinary students. The study was performed when veterinary anatomy lectures in Erciyes University were carried out via live fully online learning platforms in virtual classes like many other universities in the world due the Covid-19 pandemic. Participants were subjected to an approximately 30 minute online lecture on the external and internal anatomy of the sheep brain using cadaveric materials only (n=21, Group 1), 3D printed models only (n=20, Group 2), or a combination of cadaveric materials and 3D printed models (n=20, Group 3) as teaching aids. Online post-tests carried out following the online lectures...
Microscopy Research and Technique