告别血虚，做红润女人

健康美丽、富十青春活力，对每个人来说．都是永远追求的目标。身材窕窈、肤色红润更是每个女人一生的梦想．但现实生活中却往往因种种原因，导致女性无法拥有这个梦想，其中最大的“敌人”之一便是贫血。一旦患上了贫血，随之而来的便是面容憔悴、苍白无力、头昏眼花等等，再好的化妆品也无法掩盖。如果长期不注意调理，还会让许多疾病乘虚而入．引起身体的各种问题．威胁健康．因此危害不可谓不大。     

下颌前移矫治器治疗阻塞性睡眠呼吸暂停低通气综合征对口颌系统的影响

阻塞性睡眠呼吸暂停低通气综合征（obstructivesleepapneaandhypopneasyndrome,OSAHS）因多发、严重影响患者生活质量并有潜在致命危险,越来越受到呼吸科、耳鼻喉科、口腔科等多学科的重视^[1]。目前下颌前移矫治器主要应用于治疗轻、中度OSAHS患者,通过前移下颌位置,     

粘贴含氟正畸托槽后菌斑和唾液中氟离子的变化

目的 测定粘贴含氟正畸托槽后,口腔内菌斑及唾液氟离子浓度的变化,探讨采用含氟正畸托槽预防牙釉质脱矿的意义.方法 选择10名志愿者,口腔内粘贴含氟正畸托槽.用离子选择性氟电极测定口腔内菌斑及唾液氟离子浓度,并与粘贴托槽前的基线水平相比较.结果 粘贴含氟正畸托槽后,菌斑及唾液中氟浓度均升高,唾液氟浓度持续3天高于基线水平,...     

OSAHS患者戴用下颌前移矫治器后咀嚼肌肌电活性变化的研究

目的:探讨OSAHS患者戴用下颌前移矫治器对咀嚼肌肌电活性的初期影响。方法:随机选取37例使用下颌前移矫治器治疗的OSAHS患者,分别在戴用前和戴用1周后利用Bio-EMGⅢ肌电图仪记录在息止位、最大紧咬位时颞肌前束、咬肌的表面肌电图,对比分析左、右侧同名肌肉的不对称指数,以及颞肌前束/咬肌的活动指数在戴用前后的变化。结果:戴用下颌前移矫治器后在息止位和最大紧咬位:1)各组肌肉肌电幅值均未见明显变化;2)各咀嚼肌的不对称指数均未见明显变化;3)颞肌前束/咬肌的活动指数明显增加(P<0.05)。结论:OSAHS患者戴用下颌前移矫治器1周后出现了颞肌前束相对咬肌肌电活动强度增加的变化,应对其进行长期随访。     

丝素蛋白溶液诱导成骨分化及其性能评价

BACKGROUND: Silk fibroin, as a kind of high-performance biomaterial, has been widely used to construct scaffolds in bone tissue engineering. However, whether silk fibroin itself holds osteoinductive ability has not been reported yet. OBJECTIVE: To investigate the impact of different concentrations of silk fibroin solution on the proliferation and differentiation of rat bone marrow mesenchymal stem cells (BMSCs) in vitro. METHODS: Silk fibroin and BMSCs were respectively isolated from silkworm cocoon and rat tibia, and were identified. Then, BMSCs were cultured in different concentrations of silk fibroin solution (0.01%, 0.05% and 0.1%), and the cell proliferation and the alkaline phosphatase activity were detected at different time points. RESULTS AND CONCLUSION: FTIR spectra of the sample extracted from silkworm cocoon showed distinct absorption peaks at 1 653 (amide I), 1 530.5 (amide II) and 1 212.3 cm-1 (amide III), which could be confirmed to be silk fibroin. Thus generated BMSCs showed long fusiform or astral morphology, positive for representative markers (CD29, CD44 and CD90) relating to mesenchymal stem cells, and could differentiate into osteocytes, chondrocytes and adipocytes under specific induction conditions, which further confirmed the extracted cells were BMSCs. Compared with the control group (without silk fibroin), 0.05% silk fibroin not only significantly promoted the cell adhesion, migration and proliferation, but also enhanced the alkaline phosphatase activity (P < 0.01). With the increasing of the silk fibroin concentrations, the osteodifferentiation capacity of the BMSCs was progressively improved within the range of 0-0.05% and then declined at 0.01% of silk fibroin solutions. These results suggest that silk fibroin can promote osteogenesis, thus providing scientific evidence for developing silk fibroin-based tissue-engineered scaffolds.     

非嵌合型克氏综合征显微睾丸取精术后临床妊娠1例报告及文献复习

目的 探讨非嵌合型克氏综合征患者生育遗传学意义后代的可行性.方法 1例就诊于华中科技大学同济医学院附属同济医院的男性患者,年龄29岁,多次精液分析提示无精子,查体双侧睾丸体积小,质硬,约2 ml.性激素水平:卵泡刺激素37.34 IU/L,黄体生成素15.69 IU/L,明显升高;睾酮2.13 ng/ml,稍微偏低.查染色体核型为47,XXY,Y染色体微缺失正常,确诊为非嵌合型克氏综合征.行显微睾丸取精术,同时配合女方取卵后行卵细胞胞质内单精子注射(intracytoplasmic sperm injection, ICSI),随访1个月,观察患者术后并发症及其配偶妊娠情况.结果 显微睾丸取精术中找到少量活动精子,次日女方取卵后行ICSI,3 d后移植2枚新鲜胚胎.术后患者未出现阴囊血肿、感染等并发症,术后随访1个月患者睾酮水平较术前偏低,但性功能未受到影响.女方移植后2周查血HCG,为801 mIU/ml;移植后4周超声提示宫内早孕,单胎,胚胎存活.结论 非嵌合型克氏综合征患者可通过显微睾丸取精术获取精子,同时配合ICSI技术,生育自己遗传学意义的后代.     

12—33周胎儿脊柱生长发育与胎龄关系研究

The anteroposterior radiographs and ultrasound measurements of vertebral columns ranging from 12 to 33 weeks' gestation were studied. Two kinds of regressive equations were developed: one for estimating the length of cervical, thoracic and lumbar regions of vertebral column in accordance to gestational ages, and the other for estimating the gestational ages on the basis of the length of cervical, thoracic and lumbar regions of vertebral column. The normal values with confidence interval in accordance to the length of lumbar vertebral column for estimating the gestational ages were obtained. Also presented were the adjusted values of intercept between the data of ultrasound measurement and X-ray measurement. The ossification centers of neural arch appeared first in the upper cervical vertebrae, then they extended towards the lower vertebrae. Ossification centers for the vertebral centra appeared first in the lower thoracic/upper lumbar region and then extended to the lower and upper centra, respectively. Combining the length of lumbar vertebral column with the appearance time of the ossification centers of cervical vertebral centra, sacral vertebral centra and sacral neural arch, the authors set a standard for assessing the developmental condition of 12-23 weeks' fetuses.     

人下鼻甲粘膜微血管构筑——组织化学显示法研究

本文应用碱性磷酸酶法研究了3例死亡2小时的成人下鼻甲粘膜的微血管构筑。粘膜内存在两级微动脉吻合拱,终末微动脉以树枝状或梳状分支形成上皮下毛细血管网。本文还讨论了微血管构筑的机能意义。     

腘动脉及其分支的观测

作者在50具成年男尸上,观测了100例腘动脉及其分支。腘动脉的外径介于3.1～6.2mm之间;平均长度为160.0±14.5mm,其中介于145.0～174.0mm之间者占74％。据膝中动脉的支数分为五型,以1～2支者常见。据腘动脉终端分支的位置分为两型,其中常位分支多见,占96.0％;按终端分支情况分为四型,以腓胫后干多见,占94.0％。并对腘动脉、腘静脉、胫神经的位置关系和腘动脉的体表投影进行了观测。     

人体胸椎骨的动脉

1.用解剖、透明和 X 线造影等方法,观查了胎儿、幼儿及成人尸体胸椎骨的动脉血管共14具,其中胎儿1具、幼儿11具和成人2具。观查的内容包括胸椎骨动脉的来源、动脉在椎骨外的分支分布、相互关系,以及每个椎骨体营养动脉的支数、进入部位和它在椎骨体内的配布。2.全部胸椎骨除直接或间接地接受相邻肋间动脉供应外,其中上2胸椎骨尚接受由甲状腺下动脉、锁骨下动脉、肋颈干或椎动脉发出的降支,尤其自甲状腺下动脉来者最多。动脉血管在相应椎骨体前后面和椎弓内外面皆分为升、降支供应相邻椎骨,每侧相邻升、降支间互相连成纵吻合;左右同名支间连成横吻合。3.每个胸椎体的营养动脉共分三群:二群分别由椎骨体左右前外侧面进入。一群由椎骨体背侧面中央进入。其由椎骨体前外侧面进入的营养动脉支数,随年龄而有所变动。四个月胎儿椎骨体每侧有5—6支;1—3岁幼儿椎骨体常减少为3支。由椎骨体背侧进入上10个胸椎体的营养动脉支数常为2支;末2个胸椎体常为3—4支。此三群动脉在椎骨体内呈放射状排列,并在松质骨内相互吻合。4.终动脉只出现在椎骨体发育中的软骨范围内;后来随着骨化,动脉支在松质骨内形成吻合,终动脉卽口随之消失。5.椎弓背侧外上方或接近上关节突基部,常有一营养动脉进入。