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Molecular basis of cleft palates in mice 被引量:2
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作者 Noriko Funato Masataka Nakamura Hiromi Yanagisawa 《World Journal of Biological Chemistry》 CAS 2015年第3期121-138,共18页
Cleft palate, including complete or incomplete cleft palates, soft palate clefts, and submucosal cleft palates, is the most frequent congenital craniofacial anomaly in humans. Multifactorial conditions, including gene... Cleft palate, including complete or incomplete cleft palates, soft palate clefts, and submucosal cleft palates, is the most frequent congenital craniofacial anomaly in humans. Multifactorial conditions, including genetic and environmental factors, induce the formation of cleft palates. The process of palatogenesis is temporospatially regulated by transcription factors, growth factors, extracellular matrix proteins, and membranous molecules; a single ablation of these molecules can result in a cleft palate in vivo. Studies on knockout mice were reviewed in order to identify genetic errors that lead to cleft palates. In this review, we systematically describe these mutant mice and discuss the molecular mechanisms of palatogenesis. 展开更多
关键词 Tbx1 SUBMUCOSAL CLEFT PALATE Incomplete CLEFT PALATE Palatal shelf PALATOGENESIS KNOCKOUT MICE
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Updating Genetics Polymorphisms of Non-Syndromic Clefts Lip-Palates
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作者 Amine Rafik Sellama Nadifi 《American Journal of Molecular Biology》 2018年第3期178-185,共8页
Introduction: Non-Syndromic Clefts Lip-Palates (NSCLP/CP) are most common congenital malformation in the world, with very important psychic and social impact. Formation of NSCLP/CP arises from the interaction of envir... Introduction: Non-Syndromic Clefts Lip-Palates (NSCLP/CP) are most common congenital malformation in the world, with very important psychic and social impact. Formation of NSCLP/CP arises from the interaction of environmental and genetic factors. This paper provides a review of recent progress in defining the genetic causes of NSCLP. Methods: A literature review was conducted on the Medline data by searching for the following keywords: genes, non-syndromic cleft lip-palate, and genetics of clefts lip-palates, until January 2018. Results: Various genes are identified in different population and country, with the study using case parent’s trio. The aim of this study contributes to review relative gene which has been identify in non-syndromic cleft lip and palate, and to help to have a better understanding of the inheritance pattern of this pathology and the prevention of genetic disease. Conclusion: Although three major genes have been confirmed, the genetic research is necessary to provide an understanding of the pathophysiology of the clefts lip-palates. 展开更多
关键词 CLEFT LIP CLEFT PALATE CLEFT LIP and/or CLEFT PALATE NON-SYNDROMIC Genetics
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A Comparison of Transverse Palatal Width in Adult Untreated Cleft Palate Patients with Normal Adult Palates: A Pilot Study
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作者 Shenjuti Chowdhury Shahid Aziz +1 位作者 Richard D. Bloomstein Thomas J. Cangialosi 《Open Journal of Orthopedics》 2021年第4期126-137,共12页
<strong>Objective:</strong> The purpose of this pilot study is to compare the transverse palatal widths in untreated adult cleft palate patients with normal adult patients. <strong>Methods and Materi... <strong>Objective:</strong> The purpose of this pilot study is to compare the transverse palatal widths in untreated adult cleft palate patients with normal adult patients. <strong>Methods and Materials:</strong> The study was conducted in Bangladesh recruiting 10 patients with adult sized untreated cleft palate and 15 patients with normal adult sized palates. The control group was comprised of 7 males and 8 females with a mean age of 30.5 ± 4.4 years. The affected group comprised of 7 males and 3 females with a mean age 17 ± 3.3 years. Alginate impressions of the maxillary arch were taken and poured into plaster dental casts. The inter-canine, inter-premolar and intermolar widths were measured to evaluate the maxillary growth pattern in patients with unoperated cleft palate. Due to the small sample size, both independent T-test and Mann Whitney non-parametric tests were performed to analyze the statistical significance of the data. <strong>Results:</strong> According to both the T-test and Mann Whitney non-parametric tests, the inter-premolar width including both the first and second premolars was statistically significantly smaller in the affected group with p values of 0.003 and 0.00 respectively. There was no significant difference in the inter-canine width between the affected and control group due to the variable canine position in cleft palate patients. Due to small sample size, no significant difference in the intermolar width between the affected and control group could be established. <strong>Conclusion:</strong> The interpremolar width is significantly smaller in patients with adult sized cleft palates than individuals with normal adult sized palates. 展开更多
关键词 CLEFT PALATE ADULT TRANSVERSE Dimension
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Post-Traumatic Palatine Odontogenic Abscess: About 2 Cases
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作者 Aké Lucien Jonathan Yapo Bakary Ouattara +6 位作者 Koffi Laurent Boka Konan René Kouakou Ahi Morel Mounin Chapo Affoué Linda Marie Pierre Koffi Kahder Morel Diarra Rokiatou Koné-Kamaté Konan Marc Koffi 《Open Journal of Stomatology》 2024年第7期336-340,共5页
Introduction: Palatal abscess or cellulitis of dental origin is a rare clinical form of circumscribed cellulitis that can sometimes pose a diagnostic problem. It is the consequence of poor or non-treatment of dental c... Introduction: Palatal abscess or cellulitis of dental origin is a rare clinical form of circumscribed cellulitis that can sometimes pose a diagnostic problem. It is the consequence of poor or non-treatment of dental caries or trauma. The aim of this study is to describe the clinical and therapeutic aspects of these two cases of palatal cellulitis of post-traumatic dental origin. Observation: The patients consulted for painful palatal swelling secondary to untreated dental trauma of the 21s. The diagnosis of palatal cellulitis was based on the inflammatory and fluctuating nature of the swelling. A probabilistic bi-antibiotic treatment and an incision and drainage associated with treatment of the portal of entry were carried out. Progression was favourable in both cases. Conclusion: Palatal cellulitis is a rare condition and can be prevented by systematic stomatological consultation after dental trauma. Diagnosis is clinical. However, CT scans are sometimes useful. The course is generally favorable with appropriate treatment. 展开更多
关键词 ABSCESS PALATE DENTAL TRAUMA
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Obstructive Tumor of the Palate in the Old Person: A Case Report
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作者 Silly Toure Mouhamadou Makhtar Ndiaye +3 位作者 Abibou Ndiaye Mamadou Coume Mame Sanou Diouf Baye Karim Diallo 《Open Journal of Stomatology》 2024年第5期199-205,共7页
Introduction: Pleomorphic adenoma or mixed salivary gland tumor is a heterogeneous benign tumor of the salivary glands. The most common site is the parotid gland. Its extra-parotid locations, particularly in the acces... Introduction: Pleomorphic adenoma or mixed salivary gland tumor is a heterogeneous benign tumor of the salivary glands. The most common site is the parotid gland. Its extra-parotid locations, particularly in the accessory salivary glands, are rarer. We report a case of a pleomorphic adenoma of the posterior palate which posed management problems. Observation: This is an 85-year-old patient who consulted for a tumor of the posterior palate that had been evolving for 3 years. The examination revealed a globular tumor of the posterior palate extending beyond the midline by approximately 7 cm in long axis, shooting towards the oropharynx and hindering breathing, speech and eating, indicating a life-saving tracheotomy. A CT scan of the facial area revealed a well-circumscribed tumor at the expense of the soft palate, with multiple sites of bone lysis. The biopsy performed was in favor of a pleomorphic adenoma. The patient underwent total surgical excision of a huge tumor on the palate. The aftermath of the operation was marked by a loosening of the sutures with an oronasal fistula requiring the creation of an obturator plate due to the patient’s refusal to have another operation. Conclusion: Large pleomorphic adenoma of the posterior palate is a rare entity that can cause respiratory problems and surgical difficulties. His prognosis is generally good. 展开更多
关键词 Pleomorphic Adenoma Posterior Palate Respiratory Disorders Prognosis Obturator Plaque
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Pleomorphic Adenoma of the Salivary Glands: Two Atypical Locations
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作者 Sidibé Youssouf Diarra Abraham +6 位作者 Samaké Djibril Sanogo Boubacar Traoré Abdoul Moumine Diarra Kassim Coulibaly Bourama Diakité Youssouf Keita Mohamed Amadou 《International Journal of Otolaryngology and Head & Neck Surgery》 2024年第3期251-257,共7页
Pleomorphic adenoma is the most common tumor of the salivary glands, accounting for approximately 50% of salivary gland lesions. It develops mainly in the salivary glands: parotid (80%), submaxillary (10%), sublingual... Pleomorphic adenoma is the most common tumor of the salivary glands, accounting for approximately 50% of salivary gland lesions. It develops mainly in the salivary glands: parotid (80%), submaxillary (10%), sublingual (1%) and in the accessory oral-pharyngeal glands (9%). The aim of this work was to report 2 cases of pleomorphic adenoma of atypical location and then to discuss the difficulties linked to its diagnostic and therapeutic management in the Malian context. They were a 40-year-old man and a 72-year-old woman. They were admitted to the ENT department of the “Luxembourg Mere-infant” hospital for oropharyngeal swelling for the first and swelling of the palate for the second. The clinical expression was a swelling in both cases, of a hard, mobile consistency with healthy mucosa on their surface. The remainder of the physical examination was unremarkable. The diagnosis of a tumor of the oropharynx and palate was made following clinical radiological examinations. The histopathological examination of the surgical specimen made it possible to make the diagnosis of pleomorphic adenoma of the palate and the left palatine tonsil. The follow-up surgery was straightforward, with a favorable outcome. Pleomorphic adenomas are relatively rare benign tumors of the accessory salivary glands;their clinical expression remains swelling. Therapeutic management is surgery and the diagnosis is confirmed by histopathological examination. 展开更多
关键词 Pleomorphic Adenoma PALATE TONSIL MALI
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Histopathologic Observation and Three Dimeninal CT Reconstruction of the Nasal Cavity and Paranasal Sinuses in Children with Cleft Palates
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作者 Wang Rongguang et al PLA General Hospital Beijing 100853 《Chinese Medical Journal》 SCIE CAS CSCD 1995年第11期60-60,共1页
The morphologic characteristics of nasal cavity and paranasal sinuses in childred with cleft plaate were studied by
关键词 CT Histopathologic Observation and Three Dimeninal CT Reconstruction of the Nasal Cavity and Paranasal Sinuses in Children with Cleft palates
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Penetrating soft palate injury by lollypop candy stick
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作者 Shalendra Singh Sushrut Avinash Kulkarni +1 位作者 Nitesh Agrawal Abhishek Mishra 《Journal of Acute Disease》 2023年第5期213-214,共2页
Incidents of soft palate injury or laceration caused by unintended movement when holding a sharp object in the mouth in the pediatric population are usually rarely reported.Here we report a case of soft palate lacerat... Incidents of soft palate injury or laceration caused by unintended movement when holding a sharp object in the mouth in the pediatric population are usually rarely reported.Here we report a case of soft palate laceration in a child due to a lollypop stick tip. 展开更多
关键词 INJURY SHARP PALATE
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Influence of Tea Leaf Particle Size on Catechin Extraction and Green Tea Sensory Acceptance
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作者 Dongyang Li Yu Zhang +4 位作者 Ritsuko Tamura Toshiro Nakajima Sabine Gouraud Julien Tripette Yuko Caballero 《Food and Nutrition Sciences》 2023年第11期1043-1056,共14页
The intensity of the bitterness of catechins increases with increased concentration, but the taste palatability decreased in green tea extract. The aim of this study was to investigate whether a blend of tea leaf part... The intensity of the bitterness of catechins increases with increased concentration, but the taste palatability decreased in green tea extract. The aim of this study was to investigate whether a blend of tea leaf particles of various sizes would result in a good balance between catechin content and appreciable taste. The control is common tea (CT) with 6 - 10 mm long leaves. Blend tea (BT) was prepared by mixing 5 mm and 120 - 130 mm long tea leaves in a ratio of 3:2. The catechin content of hot water extracts was analyzed by HPLC, and the sensory test was conducted with 99 volunteers. In BT, the total catechin content was significantly higher than that in CT. The sensory test results revealed that BT was less bitter and had more preferable color than CT. More catechins were extracted from BT, but it tasted less bitter. Thus, the recalibration of the tea leaf particle size can result in good balance between catechin content and palatability. 展开更多
关键词 Blend Tea Catechin Content Sensory Test BITTERNESS PALATABILITY
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Assessment of Two Years of Free Surgical Treatment of Cleft Lip, Palate and Alveolar (CLPA) in the Maxillofacial Surgery and Stomatology Department of the Hospital University of Treichville-Abidjan
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作者 Anoumon Marguerite Reine Evelyne Anzouan-Kacou Romaric Evrard Assi Yapo +3 位作者 Jean Francois Regis Koffi Behibro Beatrice Tehoua Ettien Franck-Olivier Manoussa Seguy Emmanuel Kouadio Konan 《Open Journal of Stomatology》 2023年第8期223-232,共10页
Introduction: Cleft lip, palate and alveolar (CLPA) are congenital malformations of the face due to a defect in the fusion of embryonic buds during the first weeks of embryogenesis. These malformations affect the uppe... Introduction: Cleft lip, palate and alveolar (CLPA) are congenital malformations of the face due to a defect in the fusion of embryonic buds during the first weeks of embryogenesis. These malformations affect the upper lip, the alveolar bone and the palate. The incidence in Africa ranges from 1/2000 to 1/500 births. Their multidisciplinary management is long and costly. Thus, the help provided by humanitarian organisations during free care campaigns is welcome. Materials and Methods: This is a retrospective descriptive study conducted from August 2014 to July 2016 in the Maxillofacial Surgery and Stomatology Department of the Treichville University Hospital in Abidjan, Côte d’Ivoire. The objective was to describe the epidemiological, clinical and therapeutic aspects of CLPA during a humanitarian campaign for free care. Results: 51 cases of CLPA were operated on. Males were involved in 54.9% of the cases, i.e. a sex ratio of 1.2. The average age of the patients at the time of the operation was 3.44 years with extremes of 3 months and 52 years. Patients with low socioeconomic status represented 84.3% of the cases. Cleft lips (31.4%) and cleft palates (33.33%) predominated. For cleft lips, unilateral forms were the most frequent (73.5%) and the left side was most often affected (59.2%). The most common surgical techniques used were MILLARD cheiloplasty for cleft lips (79.36%) and Dorrance pushback for cleft palates (78.05%). The postoperative course was simple in the majority of cases (80.47%). Patients and/or parents were satisfied with the postoperative results in over 90% of cases. Discussion: Cleft lip and palate are common. Their management by humanitarian missions through mass campaigns allows us to receive a large number of patients affected by this pathology who are treated with a high satisfaction rate. Conclusion: The characteristics of cleft lip and palate in this study are in many respects identical to those described in the literature, but with some differences specific to Africa, notably the absence of antenatal diagnosis and the advanced age at the time of treatment. 展开更多
关键词 Cleft Lip and Palate Free Care Humanitarian Surgery
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Rhinoplasty in Cleft Lip and Palate
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作者 Enrique Hernandez Vidal Enrique Hernandez Del Moral +4 位作者 Omar Hernandez Del Moral Erick Daniel Hernandez Del Moral Juan Daniel Madera Brito Erik Ramos Garcia Crystell Guadalupe Guzmán-Priego 《Case Reports in Clinical Medicine》 2023年第11期439-446,共8页
Various surgical techniques and approaches have been described to repair cleft nose deformities. It is necessary to consider that since it is a congenital deformity, surgical management must consider the patient’s gr... Various surgical techniques and approaches have been described to repair cleft nose deformities. It is necessary to consider that since it is a congenital deformity, surgical management must consider the patient’s growth process, as well as the healing itself from the surgery. The present study aims to evaluate an alternative solution to secondary rhinology, aesthetic, and functional alterations to unilateral or bilateral cleft lift palate to minimize deformities and ensure good results. 11 patients were studied between 1995 to 2002, ten male and one female. In 8 cases, the patients had a history of cleft lip and palate on the left side, 2 patients with cleft lift palate on the right, and 1 patient with bilateral cleft lip and palate. 100% of the patients increased their naso-labial angle. This improved their appearance and structure, starting from a preoperative arithmetic mean of 39 degrees to a postoperative arithmetic mean of 96 degrees. Such intervention increased the naso-labial angle by 57 degrees. At the base of the nose, it was possible to improve the inclination of the alar line (line B) in 10 of the cases with a variation of 2 to 3 mm in relation to the perpendicular line A and only one case remained with the same inclination. 展开更多
关键词 Cleft Lip and Palate Naso-Labial Angle INCLINATION APPEARANCE
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OSAHS患者血液流变学变化的临床研究 被引量:1
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作者 赵玮 路虹 +1 位作者 顾朝辉 刘雪峰 《中国耳鼻咽喉头颈外科》 北大核心 2009年第8期463-465,共3页
阻塞性睡眠呼吸暂停低通气综合征(obstructive sleep apnea hypopnea syndrome,OSAHS)是由于睡眠时上气道部分或完全阻塞,引起的呼吸暂停和通气不足,伴有打鼾、睡眠结构紊乱,频繁发生血氧饱和度下降、白天嗜睡等症状。它是一种具... 阻塞性睡眠呼吸暂停低通气综合征(obstructive sleep apnea hypopnea syndrome,OSAHS)是由于睡眠时上气道部分或完全阻塞,引起的呼吸暂停和通气不足,伴有打鼾、睡眠结构紊乱,频繁发生血氧饱和度下降、白天嗜睡等症状。它是一种具有潜在危险的常见病症,长期患病易诱发心脑血管方面的疾病。本研究观察55例OSAHS患者和36例正常人血流动力学的改变,探讨OSAHS患者病理生理改变的规律,进一步认识其影响全身情况的机制。 展开更多
关键词 睡眠呼吸暂停 阻塞性(Sleep APNEA Obstructive) 血液流变学(HemorheoIogy):多道睡眠描记术 (Polysomnography) 软(Palate Soft) 连续气道正压通气(Continuous Positive Airway Pressure)
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唇腭裂/腭裂儿童临床听力研究
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作者 刘世琳 姜苏敏 +1 位作者 张莉 焦雪梅 《中国耳鼻咽喉头颈外科》 北大核心 2006年第5期341-342,共2页
关键词 儿童(Child) 唇裂(Cleft Lip) 腭裂(Cleft Palate) 听力障碍(Hearing Disorders)
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手术治疗伴腭裂的中耳炎
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作者 刘壮 张彩峰 +2 位作者 周雨露 拓明祥 田青 《中国耳鼻咽喉头颈外科》 2012年第6期331-332,共2页
腭裂是一种常见的先天性颌面畸形,由于颌面畸形使得腭咽部肌肉解剖异常,造成咽鼓管功能障碍,致使分泌性中耳炎患者发病率升高,继而引起听力下降。虽多数患者幼年行腭裂修复术及鼓膜置管术等方式进行治疗,但仍有部分患者因中耳病情迁延... 腭裂是一种常见的先天性颌面畸形,由于颌面畸形使得腭咽部肌肉解剖异常,造成咽鼓管功能障碍,致使分泌性中耳炎患者发病率升高,继而引起听力下降。虽多数患者幼年行腭裂修复术及鼓膜置管术等方式进行治疗,但仍有部分患者因中耳病情迁延而变为慢性中耳炎,需要手术治疗。 展开更多
关键词 腭裂(Cleft Palate) 中耳炎 化脓性(Otitis Media Suppurative) 胆脂瘤 中耳(Cholesteatoma Middle Ear) 耳外科手术(Otologic Surgical Procedures)
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鼓膜置管治疗腭裂合并分泌性中耳炎疗效观察
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作者 史海旭 曹银生 《中国中西医结合耳鼻咽喉科杂志》 2005年第4期211-212,共2页
目的探讨鼓膜置管术对腭裂合并分泌性中耳炎的疗效。方法对45例(72耳)患有腭裂合并分泌性中耳炎经鼓膜穿刺抽液无效的患者行鼓膜置管术和随访。结果随访1~4年,治愈36耳;好转24耳;无效和复发8耳;并发症4耳。腭裂修补组有效率93.3%;非腭... 目的探讨鼓膜置管术对腭裂合并分泌性中耳炎的疗效。方法对45例(72耳)患有腭裂合并分泌性中耳炎经鼓膜穿刺抽液无效的患者行鼓膜置管术和随访。结果随访1~4年,治愈36耳;好转24耳;无效和复发8耳;并发症4耳。腭裂修补组有效率93.3%;非腭裂修补组有效率66.7%,总有效率83.3%。结论鼓膜置管治疗腭裂合并分泌性中耳炎有利于改善听力,但不能改善咽鼓管阻塞状况,已行腭裂修补术后置管的疗效明显优于非修补组。早期行腭裂修补术后置管对咽鼓管功能恢复,听力改善,提高生活质量至关重要。 展开更多
关键词 腭裂(cleft palate) 分泌性中耳炎(SOM) 压力平衡管(PE) 分泌性中耳炎 鼓膜置管术 腭裂修补 疗效观察 置管治疗 咽鼓管阻塞
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Msx homeobox gene family and craniofacial development 被引量:18
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作者 SYLVIAALAPPAT ZUNYIZHANG YIPINGCHEN 《Cell Research》 SCIE CAS CSCD 2003年第6期429-442,共14页
Vertebrate Msx genes are unlinked,homeobox-containing genes that bear homology to the Drosophila muscle segment homeobox gene.These genes are expressed at multiple sites of tissue-tissue interactions during vertebrate... Vertebrate Msx genes are unlinked,homeobox-containing genes that bear homology to the Drosophila muscle segment homeobox gene.These genes are expressed at multiple sites of tissue-tissue interactions during vertebrate embryonic development.Inductive interactions mediated by the Msx genes are essential for normal craniofacial,limb and ectodermal organ morphogenesis,and are also essential to survival in mice,as manifested by the phenotypic abnormalities shown in knockout mice and in humans.This review summarizes studies on the expression,regulation,and functional analysis of Msx genes that bear relevance to craniofacial development in humans and mice. 展开更多
关键词 Msx genes CRANIOFACIAL TOOTH cleft palate SUTURE development transcription factor signaling molecule.
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The Craniofacial Morphology in Adult Patients with Unoperated Isolated Cleft Palate 被引量:10
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作者 Zhongtai Ye Xue Xu +1 位作者 Adalet Ahmatjian Bing Shi 《Bone Research》 SCIE CAS 2013年第2期195-200,共6页
Objective: To address the effect of intrinsic factors on craniofacial growth by analyzing the craniofacial morphology of unoperated isolated cleft palate in Chinese adult. Materials and Methods: This study included ... Objective: To address the effect of intrinsic factors on craniofacial growth by analyzing the craniofacial morphology of unoperated isolated cleft palate in Chinese adult. Materials and Methods: This study included 37 nonsyndromic isolated cleft palate and 39 age and gender matched non-clefts. Twenty-six cephalometric measurements were employed to evaluate the facial morphology. Independent samples T test and Mann- Whitney U were used for comparison. Significant difference was defined at 95% level. Results: Data from this study showed patients with unoperated isolated cleft palate have a reduced maxillary sagittal length (ANS-PMP, A-PMP, P〈0.05), a smaller ANB angle (ANB, P〈0.05) and a retrusive ANS point (S-N-ANS, P〈0.05; Ba-N-ANS, P〈0.05). Measurements descripted position of maxilla (S-Ptm, P〉0.05), depth of bony pharynx (Ba-PMP, P〉0.05), anterior and posterior maxillary height (N-ANS, P〉0.05; R-PMP, P〉0.05) and mandible morphology (including linear measurements and angle measurements) did not show any significant difference between case and control groups. Conclusions: Patients with isolated cleft palate were characterized by maxillary retrusion. Mandible morphology and cranial basal morphology in isolated cleft palate showed no significant difference with nonclefts. Patients with isolated cleft palate are more vulnerable to cross bite than nonclefts. Intrinsic deficiencies did detrimental effect on maxilla sagittal length, but did no detrimental effect on maxilla position, mandible size and position. 展开更多
关键词 isolated cleft palate unoperated craniofacial morphology maxillary growth CEPHALOMETRY
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Low-grade myofibroblastic sarcoma of the palate 被引量:11
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作者 Tomohiro Yamada Tomohide Yoshimura +3 位作者 Naoya Kitamura Eri Sasabe Seiji Ohno Tetsuya Yamamoto 《International Journal of Oral Science》 SCIE CAS CSCD 2012年第3期170-173,共4页
Low-grade myofibroblastic sarcoma (LGMS) is a rare, malignant tumor with myofibroblastic differentiation. Despite it being classified as a distinct entity by the World Health Organization, a few cases were reported ... Low-grade myofibroblastic sarcoma (LGMS) is a rare, malignant tumor with myofibroblastic differentiation. Despite it being classified as a distinct entity by the World Health Organization, a few cases were reported in the oral and maxillofacial region. Here, a LGMS developed on the palate of a 73-year-old man who presented with a 1-cm tumor on the posterior border of the palate. Based on the histological and immunohistochemical features, a diagnosis of LGMS was established. The tumor was resected, and no recurrence was observed over 2 years. Although the tongue is the most preferred site for LGMS, it may occur in any region of the oral cavity. 展开更多
关键词 low-grade myofibroblastic sarcoma ORAL PALATE
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Numerical simulation of soft palate movement and airflow in human upper airway by fluid-structure interaction method 被引量:9
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作者 Xiuzhen Sun Chi Yu Yuefang Wang Yingxi Liu State Key Lab.of Struct.Anal.for Ind.Equip.,Dalian University of Technology,Dalian 116024,China The Second Affiliated Hospital,Dalian Medical University,Dalian 116027,China 《Acta Mechanica Sinica》 SCIE EI CAS CSCD 2007年第4期359-367,共9页
In this paper, the authors present airflow field characteristics of human upper airway and soft palate movement attitude during breathing. On the basis of the data taken from the spiral computerized tomography images ... In this paper, the authors present airflow field characteristics of human upper airway and soft palate movement attitude during breathing. On the basis of the data taken from the spiral computerized tomography images of a healthy person and a patient with Obstructive Sleep Apnea-Hypopnea Syndrome (OSAHS), three-dimensional models of upper airway cavity and soft palate are reconstructed by the method of surface rendering. Numerical simulation is performed for airflow in the upper airway and displacement of soft palate by fluid-structure interaction analysis. The reconstructed threedimensional models precisely preserve the original configuration of upper airways and soft palate. The results of the pressure and velocity distributions in the airflow field are quantitatively determined, and the displacement of soft palate is presented. Pressure gradients of airway are lower for the healthy person and the airflow distribution is quite uniform in the case of free breathing. However, the OSAHS patient remarkably escalates both the pressure and velocity in the upper airway, and causes higher displacement of the soft palate. The present study is useful in revealing pathogenesis and quantitative mutual relationship between configuration and function of the upper airway as well as in diagnosingdiseases related to anatomical structure and function of the upper airway. 展开更多
关键词 Obstructive sleep apnea-hypopnea syndrome Upper airway Soft palate Three-dimensional finiteelement reconstruction Fluid-structure interaction Numerical simulation
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FEEDING HABITS OF HAINAN ELDI'S DEER 被引量:5
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作者 Yuan Xicai Liu Xiaoming Wang JunSouth China Institute of Endangered AnimalsFu GuoaiThe Forestry Bureau of Hainan ProvinceLi ShanyuanThe Datian Reserve of Hainan Province 《Journal of Northeast Forestry University》 SCIE CAS CSCD 1991年第1期65-69,共5页
Hainan eldi’s deer is a precious species of deer in the tropic zone,it is regardedas the first—class animal under protection in China.Based on all-year-round observation on thedeer’s feeding habit in the reserve fr... Hainan eldi’s deer is a precious species of deer in the tropic zone,it is regardedas the first—class animal under protection in China.Based on all-year-round observation on thedeer’s feeding habit in the reserve from 1985 to 1988,we discovered that Hainan eldi’s deer is aeuryphangous herbivore.They take various herbs as their main food and have fairly strongselectivity for woody plants,especially tending to eat the tender parts of plants and some fruits andflowers.Like other species of deer,they also like to lick the alkaline soil.This paper reports the re-search and evaluation on the feeding and choosing food characteristics of Hainan eldi’s deer,and onthe palatability of the main plants in the reserve. 展开更多
关键词 HAINAN eldi’s DEER FEEDING HABIT PALATABILITY EVALUATION
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