Publications (47) View all
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Article: Morphology of the lingual papillae in the giraffe.
Shoichi Emura, Toshihiko Okumura, Huayue Chen[show abstract] [hide abstract]
ABSTRACT: We examined the dorsal lingual surfaces of an adult giraffe (giraffa camelopardalis) by scanning electron microscopy. The filiform papillae on the lingual apex consisted of slender and thick conical papillae. The connective tissue core of the filiform papilla was flower-bud-like in shape. The filiform papillae on the lingual body consisted of large conical papillae and the fungiform papillae were round in shape. The connective tissue core of the fungiform papilla was rose-like in shape. The filiform papillae on the lingual prominence consisted of more large conical papillae than that of the lingual body. The connective tissue core of the filiform papilla was trianglar in shape. The large lenticular papillae were limited on the lingual prominence. The connective tissue core of the lenticular papilla consisted of small spines. The vallate papillae were located on both sides of the posterolateral aspects. The vallate papillae were flattened-oval in shape and the papillae were surrounded by a semicircular trench. The top of the connective tissue core of the vallate papilla had a rough surface with no spines.Okajimas Folia Anatomica Japonica 01/2013; 89(4):99-103. -
Article: Age-related changes in trabecular and cortical bone microstructure.
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ABSTRACT: The elderly population has substantially increased worldwide. Aging is a complex process, and the effects of aging are myriad and insidious, leading to progressive deterioration of various organs, including the skeleton. Age-related bone loss and resultant osteoporosis in the elderly population increase the risk for fractures and morbidity. Osteoporosis is one of the most common conditions associated with aging, and age is an independent risk factor for osteoporotic fractures. With the development of noninvasive imaging techniques such as computed tomography (CT), micro-CT, and high resolution peripheral quantitative CT (HR-pQCT), imaging of the bone architecture provides important information about age-related changes in bone microstructure and estimates of bone strength. In the past two decades, studies of human specimens using imaging techniques have revealed decreased bone strength in older adults compared with younger adults. The present paper addresses recently studied age-related changes in trabecular and cortical bone microstructure based primarily on HR-pQCT and micro-CT. We specifically focus on the three-dimensional microstructure of the vertebrae, femoral neck, and distal radius, which are common osteoporotic fracture sites.International Journal of Endocrinology 01/2013; 2013:213234. · 1.87 Impact Factor -
Article: Morphology of the lingual papillae in the jaguar.
Shoichi Emura, Toshihiko Okumura, Huayue Chen[show abstract] [hide abstract]
ABSTRACT: We examined the dorsal lingual surfaces of an adult jaguar (Panthera onca) by scanning electron microscopy. The tongue of the jaguar was about 17 cm long, and the center of the lingual apex became hollow. There were 7 vallate papillae in total. The filiform papilla on the lingual apex consisted of a larger main papilla and some secondary papillae. The connective tissue core of the filiform papilla was mountain-like in shape. The connective tissue core of the fungiform papilla was mushroom-like in shape. The filiform papilla on the anterior part of the lingual body was large and cylinder-like in shape. The connective tissue core of the filiform papilla consisted of a big conical papilla and many rod-like papillae. The filiform papilla on the central part of the lingual body was a big conical papilla. The connective tissue core of the filiform papilla consisted of a rod process and bowl-like structure. The vallate papillae were located on both sides of the posterolateral aspects. The vallate papillae were flattened-oval in shape and the papillae were surrounded by a groove and pad. The top of the connective tissue core of the vallate papilla had a rough surface with no spines.Okajimas Folia Anatomica Japonica 01/2013; 89(4):93-7. -
SourceAvailable from: Naoki Kamiya
Article: Image Interpretation System for Informed Consent to Patients by Use of a Skeletal Tracking
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ABSTRACT: In recent years, a variety of medical images are used for diagnosis. However, it is difficult to understand these images by patient without anatomical knowledge. In particular, CT images consist of large number of slice images. It causes a lack of understanding about positional information in their body. This will adversely affect the first-person informed consent (IC). We developed an image interpretation system for the patient. Our purpose of this system is patient participation in clinical site. This system is based on the skeletal tracking for recognizing patient's hand movements and determines the relative position of the body. The skeletal tracking has been implemented using the Microsoft Kinect sensor with official SDK (KinectSDK-v1.0-bata2-x86). We performed association of tracking marker and a CT number. Finally, the calculated CT images are displayed on the iPad handled with the patient. We tested the effectiveness of the proposed system in cooperation with volunteer subjects without anatomical knowledge. As a result, they were able to properly identify the proposed position of the cross-sectional image than before.International Journal of Computer Applications in Technology 07/2012; 3(4):1593-1597. -
Article: Combined treatment with a traditional Chinese medicine, Hachimi-jio-gan (Ba-Wei-Di-Huang-Wan) and alendronate improves bone microstructure in ovariectomized rats.
Huayue Chen, Mishan Wu, Kin-ya Kubo[show abstract] [hide abstract]
ABSTRACT: Hachimi-jio-gan is one of the most common recipes in traditional Chinese, Japanese and Korean medicines and has been used for preventing and treating various diseases associated with aging, including osteoporosis. The present study was performed to examine the combined effects of a traditional Chinese medicine, Hachimi-jio-gan (HJG) and antiresorptive agent, alendronate (ALN) on ovariectomy-induced bone loss in rats. Six-month-old female Sprague-Dawley rats were underwent ovariectomy (OVX) or sham operation. Eight weeks later, the OVX rats were treated either with HJG or ALN alone or in combination of both. The skeletal response was evaluated using micro-computed tomography (micro-CT), image analysis software, and biochemical markers. This study demonstrated that treatment with HJG or ALN alone increased trabecular bone volume and bone mineral density (BMD), and partially improved bone microstructure of the proximal tibia and vertebra in OVX rats. Treatment with ALN to OVX rats resulted in significant reduction in both bone resorption and bone formation. Treatment with HJG to OVX rats inhibited bone resorption, with no marked effects on bone formation. Combined treatment of HJG and ALN significantly improved trabecular bone mass and bone microstructure, compared with either agent alone. We conclude that the combined treatment with HJG and ALN has beneficial effects on trabecular bone mass, improving the structural properties of both tibia and vertebra in OVX rats.Journal of ethnopharmacology 04/2012; 142(1):80-5. · 2.32 Impact Factor