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2 Folia Morphologica

2 2017

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Anatomical transverse magnetic resonance imaging study of ligaments in palmar surface of metacarpus in Miniature donkey: identification of a new ligament

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Nazem M. N. , Sajjadian S. M.

2017

tom 76

nr 1

Background: Palmar region of metacarpus in the horses and donkeys is an important region because of its tendons and ligaments which contribute to stay apparatus. This study was done on forelimbs of 6 healthy Miniature donkeys to detect the tendons, ligaments and their accessories on the palmar surface of metacarpus in this animal. Materials and methods: Based on that magnetic resonance imaging (MRI) is a good technique to evaluate the soft tissues such as tendons and ligaments, palmar aspects of metacarpus in 6 euthanatised Miniature donkeys were prepared for anatomical and trans-sectional MRI studies to determine the tendons and ligaments in this region. Results: Suspensory ligament, deep digital flexor tendon and its inferior check ligament were similar to them in the horse. Superficial digital flexor tendon (SDFT) in this animal had superior check ligament that was present before the carpal joint. On the other hand in the Miniature donkey there was a second accessory ligament for the SDFT that originated from the proximal of palmar surface of the large metacarpal bone which we named it second accessory ligament of SDFT. This ligament was determined in the MRI images too. Conclusions: It seems that this ligament helps the Miniature donkey to stay apparatus, supporting more weight and load for a longer period of time and distance which is a specific morphological feature in this animal. (Folia Morphol 2017; 76, 1: 110–116)

Histomorphometric study of the effect of methionine on small intestine parameters in rat: an applied histologic study

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Seyyedin S. , Nazem M. N.

2017

tom 76

nr 4

Background: Assessment of morphological changes has more often been used in the diagnosis and assessment of intestinal pathology and development. Since methionine is widely used in nutritional and sports supplements and also there is not enough information about the effect of this amino acid on the gastrointestinal histomorphometry, the aim of this study was to assess the effect of methionine on the small intestine histomorphometry. Materials and methods: Thirty male Wistar rats were randomly divided to three equal groups. Two treatment groups received 100 and 200 mg/kg L-methionine solution respectively via intraperitoneal injection while the control group received normal saline. On day 21, all rats were euthanised and segments from three parts of small intestine were taken to histomorphometrical study. Paraffin sections were stained with haematoxylin and eosin, alcian blue (AB) and periodic acid Schiff (PAS) methods separately. In order to analyse histomorphometric features of each segment, villus height, width, area, crypt depth, villus height to crypt depth ratio, goblet cell number, and muscle layer thickness were measured. Results and Conclusions: Obtained results revealed that methionine may change the histomorphometric parameters of small intestine. (Folia Morphol 2017; 76, 4: 620–629)