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Okajimas Folia Anatomica Japonica

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https://www.readbyqxmd.com/read/29249736/the-palatomaxillary-suture-revisited-a-histological-and-immunohistochemical-study-using-human-fetuses
#1
Ji Hyun Kim, Masahito Yamamoto, Hiroshi Abe, Gen Murakami, Shunichi Shibata, Jose Francisco Rodríguez-Vázquez, Shin-Ichi Abe
In human fetuses, the palatine process of the maxilla is attached to the inferior aspect of the horizontal plate of the palatine bone (HPPB). The fetal palatomaxillary suture is so long that it extends along the anteroposterior axis rather than along the transverse axis. The double layered bony palate disappears in childhood and the transverse suture is formed. To better understand the development of the double layered bone palate, we examined histological sections obtained from 25 fetuses of gestational age 9-11, 16-18 and 30 weeks...
2017: Okajimas Folia Anatomica Japonica
https://www.readbyqxmd.com/read/29249735/longitudinal-observation-of-maxillary-sinus-bony-bridges-and-septa-in-childhood
#2
Munetaka Naitoh, Hirofumi Watanabe, Kazuhito Yoshida, Hisashi Hayashi, Kenichi Gotoh, Eiichiro Ariji
The rate of septum presence in the maxillary sinus has been reported to be over 30%. It was considered that a bony bridge might change to a maxillary sinus septum with growth in a previous study using dry child skulls. In the present investigation, maxillary sinus bony bridges and septa were longitudinally observed using computed tomography (CT). Multislice CT was performed in three patients. A bony bridge was defined as a bony structure between the maxillary sinus wall and dental germ. Also, a septum was defined as a pointed bony structure in the inferior wall of the maxillary sinus...
2017: Okajimas Folia Anatomica Japonica
https://www.readbyqxmd.com/read/29249734/morphology-of-the-lingual-papillae-of-the-polar-bear-ursus-maritimus
#3
Shoichi Emura, Kazue Sugiyama, Satoshi Kusuda
We examined the dorsal lingual surfaces of a newborn and an old polar bears by using scanning electron microscopy. In the newborn polar bear, the filiform papilla on the lingual apex was cylindrical in shape. The connective tissue core of the filiform papillae was needle-shaped and that of the fungiform papillae was funnel-shaped. The filiform papillae on the lingual body was dome-shaped. The connective tissue core of the filiform papillae was U-shaped and that of the fungiform papillae was column-shaped. On the lingual apex and body, there could not distinguish the filiform from fungiform papillae...
2017: Okajimas Folia Anatomica Japonica
https://www.readbyqxmd.com/read/29249733/variations-in-the-course-of-the-superior-gluteal-artery-in-relation-to-the-lumbosacral-plexus
#4
Hidaka Anetai, Kounosuke Tokita, Ryuhei Kojima, Yukio Aizawa, Ikuo Kageyama, Katsuji Kumaki
The course of the superior gluteal artery (SGA) as it passes through the lumbosacral plexus is variable. The variations of the arterial course in relation to the lumbosacral plexus have focused on statistical analysis, and it is limited arterial diversity. In this study, we investigated the positional relation between the SGA and the furcal nerve (FN): guide to segmentation of the lumbosacral plexus, arising from the L4, ie, the contribution to the femoral nerve, obturator nerve, and lumbosacral trunk. We could classify the pathway of the SGA into three types based on its positional relation to the FN...
2017: Okajimas Folia Anatomica Japonica
https://www.readbyqxmd.com/read/29213018/morphological-changes-indicative-of-brain-hemisphere-development-and-handedness-in-fixed-brains-and-on-ct-mri-images
#5
Taiko Kitamura, Hiroko Suzuki, Hidenori Yokota, Eiju Watanabe, Jinzo Yamada
We measured the lengths of some parts of the right and left hemispheres (HEs) in 70 formalin-fixed brains and on 15 computed tomography/magnetic resonance imaging (CT/MRI) images (7 left-handed and 8 right-handed cases) to clarify the morphological changes indicating which HE developed earlier and handedness. In many cases of the fixed brains, 1) the distance from the frontal pole to the occipital pole was longer in the left HE than in the right HE, 2) the distance from the middle plane to the lateral-most portion of the HE was wider in the right HE than in the left HE, 3) the left occipital pole elongated more posteriorly and covered the right occipital pole, and 4) the volume of each HE was nearly the same...
2017: Okajimas Folia Anatomica Japonica
https://www.readbyqxmd.com/read/29213017/topographical-anatomy-of-the-pronator-teres-muscle-and-median-nerve-a-study-using-histological-sections-of-human-fetuses
#6
Shinichi Abe, Naomitsu Tomita, Masahito Yamamoto, Minako Sato, Hiroshi Abe, Gen Murakami, Jose Francisco Rodríguez-Vázquez
The median nerve passes through the humeral and ulnar heads of the pronator teres muscle (PT), although variations such as absence of the ulnar head may exist. We observed histological sections of the upper extremity from 24 embryos and fetuses. In the early stage, the PT extended between the radius and the medial epicondyle of the humerus, but no candidate for the ulnar head was found. In mid-term fetuses, the ulnar margin of the PT was attached to the elbow joint capsule. Moreover, in late-stage fetuses, a small deep part of the PT arose from the thick joint capsule of the humero-ulnar joint near the coronoid process of the ulna...
2017: Okajimas Folia Anatomica Japonica
https://www.readbyqxmd.com/read/29213016/changes-in-topographical-relation-between-the-ductus-arteriosus-and-left-subclavian-artery-in-human-embryos-a-study-using-serial-sections
#7
Hiroshi Abe, Masahito Yamamoto, Ryoji Suzuki, Ming Zhou, Gen Murakami, José F Rodríguez-Vázquez
At birth, the ductus arteriosus (DA) merges with the aortic arch in the caudal side of the origin of the left subclavian artery (ltSCA). Since the SCA (seventh segmental arteries) were fixed on the levels of the seventh cervical-first thoracic vertebral bodies, the confluence of the DA should migrate caudally toward the lower level. We aimed to describe the changing topographical anatomy of the DA and SCA using serial sections. First, we examined serial sagittal sections of 11 embryos (Carnegie stage 15-18), but the specimens were clearly divided into 2 groups with and without the lower confluence of the DA...
2017: Okajimas Folia Anatomica Japonica
https://www.readbyqxmd.com/read/29213015/midline-sensory-nerve-supply-to-the-anoscrotal-junction-a-study-using-human-male-fetuses
#8
Shinichi Abe, Toshihito Yoshimoto, Masahito Yamamoto, Minako Sato, Nobuaki Yanagisawa, Nobuyuki Hinata, Hiroshi Abe, Murakami Gen
The origin of the posterior scrotal nerve is considered to be the bilateral pudendal nerves but the course to the midline is still obscure. Using 5 late-stage human male fetuses, we identified the single nerve through the intramuscular midline septum of the bulbospongiosus and the bilateral nerves along the left and right sides of the septum. Thus, the posterior scrotal nerve showed a variation: a single midline trunk or bilateral nerves. Branches of the bilateral pudendal nerves ran medially between the muscle and Cowper's gland and, at the midline area, they joined or associated closely...
2017: Okajimas Folia Anatomica Japonica
https://www.readbyqxmd.com/read/29213014/a-case-of-a-giant-mass-in-the-lumbar-region-of-a-newborn-calf
#9
Kazuki Yoshioka, Aika Ishikawa, Makoto Sugiyama, Jun Nagasao, Motohiro Kikuchi
The present report describes a newborn calf with spina bifida that presented with a giant mass of the lumbar region, as well as subsequent gross, histological, and immunohistochemical examinations. A malformed Japanese black calf (estimated weight = 20 kg) was euthanized immediately after birth. A gross evaluation revealed a giant mass (approximately 60 cm × 30 cm × 15 cm) covered by the hair coat in the lumbar region and connected with the hair coat of the trunk. The mass surface was divided by a deep polygonal groove and externally resembled a lobulated kidney...
2017: Okajimas Folia Anatomica Japonica
https://www.readbyqxmd.com/read/28637999/a-morphological-study-of-the-foramina-of-the-mandible-in-the-japanese-macaque-by-cone-beam-computed-tomography
#10
Masataka Sunohara, Yoko Miwa, Iwao Sato
The mandibular canal (MC) contains vessels and nerves in the mandible of the Japanese macaque (JM). The inferior alveolar nerves and vessels of the mandible insert from the mandibular foramen and then run through the MC, the mental foramen and spinal foramen to the outside of the mandible. However, the detailed morphological properties of multiple canals, such as the accessory canal (AC) of the mandible, are unknown in JMs. The purpose of this study was to describe the multiple canals of JMs and to determine the location and analyse the measurements of the JM mandible...
2017: Okajimas Folia Anatomica Japonica
https://www.readbyqxmd.com/read/28637998/reinvestigation-of-the-morphological-characteristics-of-the-lateral-ulnar-collateral-ligament-in-humans
#11
Karen Tokunaga, Kotaro Sato, Goro Tajima, Jun Yan, Yoshikuni Mimata, Katsumi Tajima, Yuki Kikuchi, Minoru Doita
To clarify the cause of posterolateral rotatory instability after damage to the lateral ulnar collateral ligament (LUCL), the morphological characteristics of the LUCL were reinvestigated and three-dimensional (3D) image of the ligament was reconstructed using 35 human elbows. The results were as follows: 1) the insertion point of the LUCL on the humerus was almost at the center of the capitellum, and its width was 2.61 ± 1.02 mm. The insertion point of the LUCL on the ulna was located from the lesser sigmoid notch to the supinator crest and had a width of 9...
2017: Okajimas Folia Anatomica Japonica
https://www.readbyqxmd.com/read/28637997/positional-relationships-of-abdominal-aortic-branches-for-contrast-radiography-of-the-inferior-mesenteric-artery-using-the-coeliac-trunk-and-superior-mesenteric-artery-as-landmarks
#12
Yusuke Nakayama, Shogo Hayashi, Kyoko Takeuchi, Shinichi Kawata, Ning Qu, Masahiro Itoh
PURPOSE: To establish a method by which angiography of the inferior mesenteric artery (IMA) can be performed smoothly, we investigated the relative locations of the coeliac trunk (CT), superior mesenteric artery (SMA), IMA, and left renal artery (LtRA). METHODS: From a total of 60 cadavers, 32 cadavers with few arteriosclerotic lesions and little vascular tortuosity were selected for the study. The abdominal aorta (Ao) were removed and incised on both lateral side, along the vertical axis and transected into the ventral and dorsal sides...
2017: Okajimas Folia Anatomica Japonica
https://www.readbyqxmd.com/read/28637996/the-localization-of-calcitonin-gene-related-peptide-in-the-human-trigeminal-ganglion-and-masseter-muscle
#13
Yuri Azuma, Iwao Sato
The localization of calcitonin gene-related peptide (CGRP) is similar to that of a neurotransmitter which indicates masticatory muscle pain in the area of the masseter fascia. CGRP is released from the trigeminal ganglion (TG). The aim of this study was to analyze the distribution of CGRP in the fascia of the masseter muscle (FMM) and TG in a morphometric manner, with respect to the location and density of CGRP-immunopositive reaction fiber (CGRP-IRF). A higher number of the CGRP-IRF were mainly found located around elongated blood vessels and small nerves on the origin side of the middle zone FMM in the O group (presented with occlusion)...
2017: Okajimas Folia Anatomica Japonica
https://www.readbyqxmd.com/read/28637995/intracranial-bony-canal-of-the-middle-meningeal-artery-morphological-and-histological-analysis
#14
Michio Fujimoto, Naruhito Otsuka, Hiromitsu Ezure, Hiroshi Moriyama, Yuriko Inoue, Ryoichi Mori
The middle meningeal artery (MMA) can play an important role in the surgical revascularization. However, the MMA can be easily injured if it passes through a bony canal. We investigated the morphological and histological features of the bony canal to improve surgical results. MATERIALS AND METHODS: Fifty adult dry skulls were investigated. The length of the bony canal and the distance from the orbital rim to the bony canal were measured. Additionally, 28 cadaveric heads were examined histologically...
2017: Okajimas Folia Anatomica Japonica
https://www.readbyqxmd.com/read/28637994/anti-diabetic-activities-of-traditional-chinese-herbal-medicine-in-streptozotocin-induced-diabetic-rats
#15
Tomoko Nozaki, Jun Minaguchi, Kazushige Takehana, Hiromi Ueda
Zhen Qi Hypoglycemic Capsules (ZQHC) is a traditional Chinese herbal medicine containing medical activities by ougi (Astragalus membranaceus) and ousei (Polygonatum rhizome). Although ZQHC has been traditionally utilized as an anti-diabetic medicine in China, there is no evidence. Therefore, this study investigated the beneficial effects of ZQHC against diabetes using streptozotocin (STZ)-induced diabetic rats by biochemical and morphological methods. Eight-week old male Fisher strain rats were intraperitoneally injected with STZ (50 mg/kg of B...
2017: Okajimas Folia Anatomica Japonica
https://www.readbyqxmd.com/read/28216542/morphology-of-the-lingual-papillae-of-the-eland-taurotragus-oryx
#16
Shoichi Emura
We examined the dorsal lingual surfaces of an adult eland (Taurotragus oryx) by scanning electron microscopy. Filiform, fungiform and vallate papillae were observed. The filiform papillae of the lingual apex consisted of a larger main papilla and smaller secondary papillae. The connective tissue core of the filiform papilla was U-shaped. The fungiform papillae were round in shape. The connective tissue core of the fungiform papilla was flower-bud shaped. The filiform papillae of the lingual body consisted of a main papilla and were big as compared to that of the lingual apex...
2016: Okajimas Folia Anatomica Japonica
https://www.readbyqxmd.com/read/28216541/crown-shape-of-maxillary-molars-with-delayed-eruption
#17
Nomintsetseg Batbayar, Takashi Kameda, Natsuki Sano-Sekikawa, Kazuto Terada
The purpose of this study was to explore the crown shapes of maxillary molars with delayed eruption (DEMo1) at the position distal to the maxillary second premolar. Included teeth erupted later than the average for the maxillary first molar eruption in Japanese females (6.58 ± 0.67 years) by more than two standard deviations. Crown shapes of 12 four-cusped left DEMo1 teeth were compared with those of 25 four-cusped left maxillary first molars (U6n) and 25 four-cusped left maxillary second molars (U7n) from different patients with normal eruption...
2016: Okajimas Folia Anatomica Japonica
https://www.readbyqxmd.com/read/28216540/effectiveness-of-exercise-induced-cytokines-in-alleviating-arthritis-symptoms-in-arthritis-model-mice
#18
Takumi Kito, Toshio Teranishi, Kazuhiro Nishii, Kazuyoshi Sakai, Mamoru Matsubara, Kouji Yamada
Recently, health awareness in Japan has been increasing and active exercise is now recommended to prevent lifestyle-related diseases. Cytokine activities have many positive effects in maintaining the health of a number of organs in the body. Myokines are cytokines secreted by skeletal muscles in response to exercise stimulation, and have recently generated much attention. Around 700,000 patients in Japan suffer from rheumatoid arthritis, making it the most prevalent autoimmune disease that requires active prevention and treatment...
2016: Okajimas Folia Anatomica Japonica
https://www.readbyqxmd.com/read/28216539/macrophage-infiltration-into-thyroid-follicles-an-immunohistochemical-study-using-donated-elderly-cadavers
#19
Takeshi Takayama, Ai Hirano-Kawamoto, Masahito Yamamoto, Gen Murakami, Yukio Katori, Kei Kitamura, Shin-Ichi Abe
To describe and discuss the morphology of the aged thyroid gland, with particular reference to the contribution of macrophages.With the aid of immunohistochemistry, we examined 1) macrophage accumulation, 2) infiltration of lymphocytes, and 3) the size and density of follicles in the unilateral lobe of the thyroid gland obtained from elderly donated cadavers (mean age, 84 years) without macroscopic malignancy. Each almost entire unilateral lobe of the thyroid showed 2554-9910 follicles per section, and each of the follicles ranged in area from 0...
2016: Okajimas Folia Anatomica Japonica
https://www.readbyqxmd.com/read/28216538/morphology-of-the-lingual-papillae-of-the-asian-short-clawed-otter
#20
Shoichi Emura, Kazue Sugiyama
We examined the dorsal lingual surface of an adult Asian short-clawed otter (Aonyx cinerea) by using scanning electron microscopy. The filiform papilla on the lingual apex had some pointed processes. The connective tissue core of the filiform papillae consisted of several rod-like processes, and the connective tissue core with a long process was rarely observed. The filiform papilla on the lingual body had several pointed processes and the fungiform papilla had smooth surface. The connective tissue core of the filiform papillae consisted of a large main and several small processes...
2016: Okajimas Folia Anatomica Japonica
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