Anatomi Anabilim Dalı
http://openaccess.sanko.edu.tr/xmlui/handle/20.500.12527/98
2024-03-29T08:57:50Z
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Upregulation in Anatomy
http://openaccess.sanko.edu.tr/xmlui/handle/20.500.12527/660
Upregulation in Anatomy
Şengül, Gülgün; Akkın, Salih Murat
2016-01-01T00:00:00Z
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The Anatomy House in Copenhagen
http://openaccess.sanko.edu.tr/xmlui/handle/20.500.12527/659
The Anatomy House in Copenhagen
Akkın, Salih Murat
2016-01-01T00:00:00Z
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Residual Stress Levels on the Cortical Section of Vertebral Bone Tissue
http://openaccess.sanko.edu.tr/xmlui/handle/20.500.12527/614
Residual Stress Levels on the Cortical Section of Vertebral Bone Tissue
Sert, Cemil; Uslu, Ayşe İmge; Yalçın, Şerife
Objective: Residual stress can cause deformation and cracks in the bone tissue. The aim of our study is to measure the residual stress level and distribution in the cortical bone of the extremities of vertebrates.Methods: Residual stress levels in the bone tissue of 12 sheeps aged 2 years were measured by observing the cortical parts of 6 different (C1, C3, Th1, Th 13, L1, and L6) vertebral bones by means of the X-ray diffraction method. This method is recognized as the one that can measure residual stress in the bone tissue most accurately. By means of special methods, the cortical part of vertebral bone was separated from its trabecular part. The bone tissue was left to stand for a long time to dry completely. Measurements were performed on completely dried tissues using an X-ray diffraction apparatus. The residual stress values obtained from all the subject groups were compared statistically. Results: It was found that the residual stress level was the highest in C3 and that it showed a statistically significant change as compared to the levels in C7, Th1, and Th13. Although the level in C3 was high as compared to the levels in L1 and L6, it was not statistically significant.Conclusion: The residual stress level in the C3 vertebral cortical section was significantly higher than other parts and was interpret-ed as such by us, i.e., anatomically, it is one of the vertebrae that keep the head upright and is the vertebra carrying the maximum load in all natural processes.
2019-01-01T00:00:00Z
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A rare anastomotic artery between right and left common iliac arteries: iliac anastomotic artery
http://openaccess.sanko.edu.tr/xmlui/handle/20.500.12527/596
A rare anastomotic artery between right and left common iliac arteries: iliac anastomotic artery
İkidağ, Mehmet Ali; Cüce, Mehmet Ali; Özkılıç, Şinasi; Uysal, Erdal; Akkın, Salih Murat
Congenital abdominal aortoiliac arterial abnormalities are not as common as aortic arch anomalies. Incidentally observed abdominal arterial and venous variations and anomalies are increasingly encountered due to widespread use of multislice CT for abdominal and vascular diseases. Knowledge of these variations or pathologies is crucial, especially before surgery to repair occlusive diseases, aneurysms and transplant surgeries, in order to reduce complications such as vascular injury and bleeding. Here we present an aortoiliac variation observed during abdominal CT examination of a 27-year-old female. This variation appeared as an anomalous arterial structure coursing obliquely and transversely between the right and left proximal common iliac arteries and binding them just below the bifurcation. Physicians should also be familiar with such a case, which appears as a triangular aortoiliac arterial window and which has only been reported in the old anatomical literature.
2018-01-01T00:00:00Z
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Biomechanical strength of glass ionomer cement in incudostapedial rebridging.
http://openaccess.sanko.edu.tr/xmlui/handle/20.500.12527/528
Biomechanical strength of glass ionomer cement in incudostapedial rebridging.
Server, E A; Alkan, Z; Yigit, O; Acioglu, E; Bekem, A; Unal, A; Akkın, Salih Murat
To study the biomechanical properties of glass ionomer cement used for incudostapedial rebridging.
Two groups were established based on the size of the gap between the incus and stapes (1.0 mm in group 1 and 2.0 mm in group 2). Glass ionomer cement was applied to the gaps, and compression tests were performed. Maximum force was measured at the fracture point, and was divided by the cross-sectional area to obtain the maximum compressive strength.
No significant difference was found in the maximum force for the two groups (p = 0.312). The glass ionomer cement diameter was significantly higher in group 2 than in group 1 (p = 0.006). The maximum compressive strength was significantly higher in group 1 than in group 2 (p = 0.042).
The fragility of bone cement used in this study was 25.5 per cent higher for a 2 mm gap than for a 1 mm gap. We speculate that the use of bone cement may be safer for the repair of smaller incudostapedial defects.
2015-02-01T00:00:00Z
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A glimpse into the process of gaining permission for the educational dissection of human cadavers in the Ottoman Empire.
http://openaccess.sanko.edu.tr/xmlui/handle/20.500.12527/527
A glimpse into the process of gaining permission for the educational dissection of human cadavers in the Ottoman Empire.
Akkın, Salih Murat; Dinc, Gulten
Dissection of the human body for educational purposes became officially permitted in the Ottoman Empire only after a long, difficult process. In the West, studies based on the findings of Galen had been taboo during a long period in which dissection of human bodies had been prohibited. Although the first dissection studies since ancient times began to appear in the Western literature in the late 13th and early 14th centuries, the post-Galen taboo against dissection was broken only in the 16th century by the studies of Vesalius. However, in the Eastern World, it was only fairly recently that the idea of the "sanctity of the human body" could be challenged. In the medieval Islamic world, as during the Middle Ages in the West, prohibitions against the dissection of human cadavers continued for social and religious reasons, although the Koran does not specifically ban such dissection. This prohibition also continued through the Ottoman era, which began in the 14th century. The first efforts to end the prohibition on dissection in the Ottoman Empire were made at the beginning of the 19th century during the reign of Sultan Selim III but official permission for dissection was given only in 1841 during the reign of Sultan Abdulmecid. Educational dissections in the Ottoman Empire officially began at the Istanbul Medical School following the granting of this permission. This article will discuss the attempts to end the prohibition of dissection in Ottomans within the scope of the history of anatomical study in Turkey.
2014-10-01T00:00:00Z
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Experimental Studies on Facial Nerve Regeneration.
http://openaccess.sanko.edu.tr/xmlui/handle/20.500.12527/407
Experimental Studies on Facial Nerve Regeneration.
Rink, Svenja; Bendella, Habib; Akkin, Salih Murat; Manthou, Marilena; Grosheva, Maria; Angelov, Doychin N
Insufficient recovery after injury of a peripheral motor nerve is due to (1) inappropriate pathfinding as a result of axonal regrowth to inappropriate targets, (2) excessive collateral axonal branching at the lesion site, and (3) polyinnervation of the neuromuscular junctions (NMJs). The rat facial nerve model is often used because of its simple and reliable readout to measure recovery of function (vibrissal whisking). Over the last decades scientists have concentrated their efforts to combat mostly NMJ polyinnervation, because it turned out to be very difficult to reduce collateral axonal branching and impossible to navigate thousands of axons toward the original fascicles. In the past, several groups of scientists concentrated their efforts to reduce the activity-dependent polyinnervation of NMJs by electrical stimulation of the muscles (square 0.1 msec pulses at 5 Hz). The results showed no recovery of functions and a severe reduction in the number of innervated NMJs to approximately one fifth of those observed in intact animals. More recent experiments, however, have shown that motor recovery improved significantly following mechanical stimulation of the denervated facial muscles (vibrissal and orbicularis oculi) and that restored functions could invariably be linked to reduced polyinnervation at the NMJ while the number of innervated NMJ remained the same. These results suggest that clinically feasible and effective therapies could be developed and tested in the near future. Anat Rec, 302:1287-1303, 2019. © 2019 Wiley Periodicals, Inc.
2019-01-01T00:00:00Z
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An unusual course of aortic arch through an accessory fissure of left upper lobe of the lung: extramediastinal aortic arch.
http://openaccess.sanko.edu.tr/xmlui/handle/20.500.12527/334
An unusual course of aortic arch through an accessory fissure of left upper lobe of the lung: extramediastinal aortic arch.
İkidağ, Mehmet Ali; Biçer, Hüseyin; Cüce, Mehmet Ali; Uyar, Meral; Akkın, Salih Murat
In this case report, we present an unexpected, extramediastinal course of aortic arch through an accessory fissure of left upper lobe of the lung in a 19-year-old healthy man.
2017-01-01T00:00:00Z
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Scorpion-shaped pancreas together with an arterial variation complex
http://openaccess.sanko.edu.tr/xmlui/handle/20.500.12527/254
Scorpion-shaped pancreas together with an arterial variation complex
İkidağ, Mehmet Ali; Cüce, Mehmet Ali; Özkılıç, Şinasi; Uysal, Erdal; Akkın, Salih Murat
There is a range of well-described anatomic variations and developmental anomalies of the pancreas in the literature.Although some of these variations are extremely uncommon, knowledge of these abnormalities is essential for avoiding misdiagnosis and managing pancreatic pathologies clinically. In this paper, we present an anatomical variation observed duringthoracoabdominal CT examination of a 33-year-old female. This patient presented with left chest pain and had undergonesplenectomy six years ago and left thoracotomy one year ago, both for hydatid cyst. The case showed that the tail of pancreas raised upward and then anteriorly, resembling the tail of a scorpion, and was accompanied by a right hepatic arterythat originated from the superior mesenteric artery and a left accessory renal artery. Because no similar case has been reported in the available literature, our opinion is that physicians should also be familiar with scorpion-shaped pancreas that canbe termed as 'pancreas scorpiforme' anatomically
2016-01-01T00:00:00Z