scholarly journals Hair Bulb

2020 ◽  
Author(s):  
Keyword(s):  
Hair Bulb

scholarly journals Comparing the delivery to the hair bulb of two fluorescent molecules of distinct hydrophilicities by different nanoparticles and a serum formulation

2021 ◽  
pp. 120653
Author(s):  
Cristiana Costa ◽  
Bruno Fernandes ◽  
Diana Guimarães ◽  
Eugénia Nogueira ◽  
Madalena Martins ◽  
...  
Keyword(s):  
Hair Bulb ◽  
Fluorescent Molecules

Improved Minimum Distance Discrimination Method Used in Image Analysis of Fabric Wear Resistance

2012 ◽  
Vol 263-266 ◽  
pp. 421-426 ◽  
Author(s):  
Jian Xia Su ◽  
Run Ping Han ◽  
Li Min Shi ◽  
Xing He Qian
Keyword(s):  
Image Processing ◽  
Wear Resistance ◽  
Minimum Distance ◽  
Standard Sample ◽  
Resistance Level ◽  
Image Preprocessing ◽  
Maximum Area ◽  
Hair Bulb ◽  
Distance Discrimination ◽  
Discrimination Method

With the increasing attention of textile, the wear resistance of the fabric is more and more important today. The wear resistance is judged by the sample and standard sample according to sensory contrast complete, but this approach has repeated poor consistency. The subjective factors of testers influence the result heavily. So the powerful image processing tools of MATLAB was used in the analysis of fabrics image processing. By image read, display and interception, image preprocessing, and feature extraction value, the eigenvalues of total area of the hair bulb, maximum area of the hair bulb, and hair bulb number were obtained. After the improved minimum distance discrimination method was used to determine the level of wear resistance by computer. Tests show that fabrics wear resistance level can be judged quickly, accurately and automatically.

Communication compartments in hair follicles and their implication in differentiative control

Development ◽  
1992 ◽  
Vol 114 (2) ◽  
pp. 389-393 ◽  
Author(s):  
E. Kam ◽  
M.B. Hodgins
Keyword(s):  
Lucifer Yellow ◽  
Early Stage ◽  
Dermal Papilla ◽  
Hair Follicles ◽  
Hair Dye ◽  
Hair Bulb ◽  
Ultrastructural Studies ◽  
Junctional Communication ◽  
Root Sheath ◽  
Inner Root Sheath

Observations on hair follicles presented in this paper show that boundaries to junctional communication are formed between groups of cells following different pathways of differentiation. The patterns of junctional communication in the bulbs of rat vibrissa follicles and human hair follicles were studied by microinjection of the fluorescent tracer dye Lucifer Yellow CH. Dye spread was extensive between undifferentiated cells of the hair bulb matrix but communication boundaries were found between groups of morphologically distinct cells. For example, boundaries to dye spread were observed between undifferentiated matrix cells and cells in the early stage of differentiation into the inner root sheath, between Huxley's and Henle's layers in the early inner root sheath and between cells of the cuticle and cortex of the hair. Dye did not spread between epithelial cells of the hair bulb and mesenchymal cells of the connective tissue sheath or dermal papilla. The patterns of dye spread became more complex (increased boundary formation and subcompartmentation) as differentiation progressed in higher regions of the hair bulb. The observed communication can be related to previous ultrastructural studies by others on the distribution of gap junctions in the wool follicle. These results show that junctional communication, with its consequent intercellular spread of small ions and molecules, is associated with uniformity of expression and behaviour within cell populations and that interruption of communication through the formation of boundaries and communication compartments is temporally and spatially related to the production of subpopulations of cells committed to the expression of different phenotypes.

scholarly journals The Human Hair Bulb is a Source and Target of CRH

2004 ◽  
Vol 122 (1) ◽  
pp. 235-237 ◽  
Author(s):  
Natsuho Ito ◽  
Taisuke Ito ◽  
Albrecht Bettermann ◽  
Ralf Paus
Keyword(s):  
Human Hair ◽  
Hair Bulb

Immunohistochemical detection of possible sex hormone-related cells in hair bulb of human scalp

1998 ◽  
Vol 16 ◽  
pp. S157
Author(s):  
Motohide Takahama ◽  
Yoshiya Goto ◽  
Nobuo Hanai ◽  
Akira Tanaka ◽  
Masashi Fukayama
Keyword(s):  
Sex Hormone ◽  
Immunohistochemical Detection ◽  
Hair Bulb

scholarly journals Do Hair Bulb Melanocytes Undergo Apotosis During Hair Follicle Regression (Catagen)?

1998 ◽  
Vol 111 (6) ◽  
pp. 941-947 ◽  
Author(s):  
Desmond J. Tobin ◽  
Evelin Hagen ◽  
Vladimir A. Botchkarev ◽  
Ralf Paus
Keyword(s):  
Hair Follicle ◽  
Hair Bulb

Morphological changes associated with the growth cycle of vibrissal follicles in the rat

Development ◽  
1976 ◽  
Vol 36 (3) ◽  
pp. 597-607
Author(s):  
R. D. Young ◽  
R. F. Oliver
Keyword(s):  
Morphological Changes ◽  
Dermal Papilla ◽  
Growth Cycle ◽  
Hair Follicles ◽  
Transitional Period ◽  
Hair Cycle ◽  
Hair Bulb ◽  
No Formation ◽  
The Matrix ◽  
Small Aggregation

Morphological changes which occur in the growth cycle of the rat vibrissal follicle during the transitional period between consecutive anagen phases are described. In contrast with pelage hair follicles, there is no shortening of the follicle, no formation of a papilla ‘rest’ and no close synchrony between club differentiation and follicle regression. Telogen is therefore considered to occur after loss of the matrix of the hair bulb and maximal diminution of the dermal papilla to a small aggregation of cells. These differences are discussed in relation to current nomenclature of the hair cycle and the function of the vibrissal follicle.

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