根鞘

CK19主要分布在汗腺、毛囊外根鞘最外层和皮肤的基底层；

CK19 mainly expressed in the sweat gland , the out layer of outer root sheath and the basal layer of skin .

[目的]作为毛囊外根鞘一部分的bulge区是近来公认的表皮干细胞池。

[ Purpose ] The bulge region , a portion of the outer root sheath , contains the hair follicle stem cells , which shows multipotency to differentiate into almost all epithelial cell types .

毛根鞘X染色质检查在妇科领域中应用

X chromation examination in hair root cells apply to the domain of gynecology

建筑的表皮LC主要位于表皮棘细胞层和毛囊根鞘；

In the skin LC were located mainly in the stratum spinosum of the epidermis .

毛根鞘检出X染色质的方法具有操作简便、受检者无痛苦、不易受细菌污染的优点。

The technique of sex chromatin examination in hair root cells is simple , painless , and without the fear of bacterial contamination .

退行期开始时，毛囊峡部、茎部和球部外毛根鞘内出现程序性死亡（Programmeddeath）细胞，即凋亡细胞（apoptoticcell）。

There are programmed death cells ( apoptotic cell ) in isthmus , petiol and glomus of external root sheath of hair follicle when regressive phase begins .

方法：分离培养新生SD大鼠毛囊外根鞘细胞和真皮鞘细胞，以这两种细胞为种子细胞构建全层组织工程全层皮肤。

Methods Separated the dermal sheath cells and outer root sheath cells form the hair follicle of newborn rats to culture composite tissue engineering skin .

结果：在银屑病进展期，EGFR阳性细胞分布于表皮全层包括角质层，在汗腺及毛囊外根鞘上皮细胞也有EGFR的表达；

The distribution of EGFR positive staining cells was seen throughout the epidermis including stratum corneum in progressive psoriatic patients .

结果①生长期毛囊：LM均匀的表达于毛乳头处，在基底膜处呈明显的线状表达，外根鞘处表达也呈明显的阳性；

Results In the anagen phase , LM was expressed in dermal papilla , basement membrane and outer root sheath ;

Hertwig上皮根鞘的研究重点

Main points of study on Hertwig ′ s epithelial root sheath

目的：观察牙根发育中上皮根鞘细胞（Hertwig′sepithelialrootsheath，HERS）断裂后结局和增殖凋亡相关基因的表达，探讨上皮根鞘在牙根发育特别是牙骨质形成中的可能作用。

AIM : To analyze the apoptosis and proliferation of HERS ( Hertwig 's epithelial root sheath ) and to evaluate the roles of HERS cells in the development of cementum .

体外培养小鼠毛囊外根鞘（outerrootsheath，ORS）细胞并用ICC方法研究了ORS细胞uPA的表达。

The outer root sheath ( ORS ) cells of the mouse vibrissa hair follicle were cultured in vitro , the expression of uPA in the ORS cells was analyzed by ICC .

牙根发育是牙齿发育的重要部分，Hertwig上皮根鞘（Hertwig′sepithelialrootsheath，HERS）参与牙根发育，并起重要作用。

The tooth root development is an important part of tooth development . Hertwig ′ s epithelial root sheath ( HERS ) takes part in and plays important role in tooth root development .

结果：（1）：T1神经根鞘的长度、横径最大（2）：左、右神经根鞘的长度、横径基本对称。（3）：胸神经根鞘开口式以2孔为主。

Results : T1 spinal nerve root sheath was the biggest one in length and diameter among all thoracic spinal nerve root , the length and diameter of left and right nerve root sheaths were symmetrical .

类天疱疮IgG和C3在毛囊表皮下的外毛根鞘外层与结缔组织鞘之间呈明显的线状沉积。10例正常人及20例天疱疮患者均无线状沉积。

Results : Linear deposition of IgG or C3 pemphigoid antibodies could be observed in the layer between the outer root sheath and dermal tissue in bullous pemphigoid patients , which was not seen in healthy controls and pemphigus .

CK16在表皮层和毛囊外根鞘均有阳性表达；

CK16 expressed both in the epithelia and the outer root sheath .

目的：体外研究内皮素-1（ET-1）对毛囊外根鞘无色素黑素细胞（AMMC）黏附和移行的作用，并观察其对细胞骨架蛋白微丝、微管的形态影响。

Objective : To study the effects of endothelin-1 on the adhesion and migration of amelanotic melanocytes in hair out root sheath and observe its role on cytoskeleton .

AA患者秃发区头皮总AR阳性细胞百分率以及表皮、汗腺、皮脂腺、毛根鞘、毛乳头五个皮肤结构中的AR阳性细胞百分率均高于非秃发区及正常人（P<001）。

The total AR-positive rate and the AR-positive rate in epiderm , sweat gland , sebaceous gland , hair root sheath and hair papilla were higher in the alopecia scalp of the cases than those in non-alopecia scalp of the cases and in healthy volunteers ( P < 0.01 );

[结论]该研究显示，我们的细胞分离技术能快速分离培养出毛囊外根鞘细胞，并且这些细胞含有bulge干细胞。

In the new dermal layer , the matrix decreased 4 weeks after transplantation . [ Conclusion ] This study gives evidence that our isolation technique allows isolating and culturing of outer root sheath cells , which contain some bulge stem cells .

目的初步探讨外毛根鞘处于静息状态的无色素性黑素细胞（AMMC）生物学特性。

Objective To investigate biological characters of amelanotic melanocytes ( AMMC ) located in the outer root sheath of the hair follicles .

方法采用两步酶法0.50%分离酶和0.50%胶原酶Ⅴ获得游离的毛囊，高浓度0.50%胰酶30min消化游离的毛囊外根鞘细胞，并以优化的培养基进行细胞培养。

Methods : Hair follicles in the remaining dermis were isolated by two-step enzyme treatment . Hair follicle cell suspensions were prepared by 0.50 % trypsin treatment for about 30 min , and cultured in a optimized culture medium .

方法：取出生后5d、9d、15d、19d及4个月的BALB/c小鼠共18只，光镜观察上皮根鞘的发生、牙骨质发育过程，透射电镜观察该阶段上皮根鞘细胞的超微结构。

METHODS : Eighteen BALB / c postnatal mice were divided into five groups according to the developing stages . The mouse teeth were examined at the onset of root development by light and transmission electron microscopy .

报告1例小腿毛根鞘囊肿。

A case of trichilemmal cyst in the leg is reported .

小腿毛根鞘囊肿面部发疹性毳毛囊肿

Trichilemmal cyst in the leg Eruptive vellus hair cysts on the face

采用非脱发成人头皮标本，组织法培养毛囊外根鞘细胞。

Out root sheath cells from nonbald adults were cultured in vitro scalp .

人毛囊外根鞘细胞的分离及培养

Isolation And Cultivation In Vitro Of Human Hair Follicle Outer Root Sheath Cells

维A酸促毛囊外毛根鞘无色素黑素细胞分化的实验研究

All-trans retinoic acid induced the differentiation of amelanotic melanocytes of human hair follicle

面部多发性恶性增生性外毛根鞘瘤1例

Facial multiple malignant proliferating tricholemmoma : A case report

甲氧沙林对体外培养的人毛囊外根鞘无色素黑素细胞的激活作用

Activation of amelanotic melanocytes in outer root sheath of hair induced by methoxsalen in vitro

与滤膜接触的上皮类似上皮根鞘结构。

The epithelium making contact with the supporting filter resembled Hertwig 's epithelial root sheath .