Changes after Irradiation in the Number of Mitotic Cells and Apoptotic Fragments in Growing Mouse Hair Follicles and in the Width of Their Hairs

1990 ◽  
Vol 123 (1) ◽  
pp. 75 ◽  
Author(s):  
L. Geng ◽  
C. S. Potten
Keyword(s):  
Hair Follicles ◽  
Mitotic Cells

Visualization of Internal Skin Structures with the Scanning Electron Microscope

1969 ◽  
Vol 27 ◽  
pp. 46-47
Author(s):  
Emil Bernstein
Keyword(s):  
Electron Microscope ◽  
Scanning Electron Microscope ◽  
Great Depth ◽  
Hair Follicles ◽  
Depth Of Field ◽  
Pig Skin ◽  
Realistic Picture ◽  
Main Components ◽  
Scanning Electron

An interesting method for examining structures in g. pig skin has been developed. By modifying an existing technique for splitting skin into its two main components—epidermis and dermis—we can in effect create new surfaces which can be examined with the scanning electron microscope (SEM). Although this method is not offered as a complete substitute for sectioning, it provides the investigator with a means for examining certain structures such as hair follicles and glands intact. The great depth of field of the SEM complements the technique so that a very “realistic” picture of the organ is obtained.

Effect of Minoxidil Sulfate on the Growth of Human Anagen Hair Follicles Grown in Collagen Gels, and on the Colony Growth of Human Cultured Outer Root Sheath Cells in vitro.

1992 ◽  
Vol 54 (4) ◽  
pp. 727-732 ◽  
Author(s):  
Naoyuki UCHIDA ◽  
Takesi FUJIE ◽  
Seiji ARASE ◽  
Yosiroh NINOMIYA ◽  
Hideki NAKANISI ◽  
...  
Keyword(s):  
Colony Growth ◽  
Hair Follicles ◽  
Collagen Gels ◽  
Outer Root Sheath ◽  
Root Sheath ◽  
Anagen Hair ◽  
Outer Root Sheath Cells ◽  
Sheath Cells

A method for culturing human hair follicle cells. (II). Plucked human hair follicles.

1988 ◽  
Vol 50 (2) ◽  
pp. 271-276 ◽  
Author(s):  
Ryuichiro KUWANA ◽  
Seiji ARASE ◽  
Yasushi SADAMOTO ◽  
Hideki NAKANISHI ◽  
Katsuyuki TAKEDA
Keyword(s):  
Hair Follicle ◽  
Human Hair ◽  
Hair Follicles ◽  
Follicle Cells ◽  
Human Hair Follicle

Influence of Toxic and Subtoxic Doses of Diclofenac Sodium on Mechanisms of Differentiation of Granulocytary Row Cells, Undifferentiated Blasts and Mitotic Cells in the Bone Marrow of Rats

2019 ◽  
Vol 4 (6) ◽  
pp. 46-51
Author(s):  
O. S. Ivanov ◽  
◽  
I. Yu. Bagmut ◽  
G. V. Tsapko ◽  
S. I. Sklyar ◽  
...  
Keyword(s):  
Bone Marrow ◽  
Diclofenac Sodium ◽  
Mitotic Cells

The basis of quality of sheep pelts and fur products is morphological features of the skin of sheep

2020 ◽  
pp. 50-57
Author(s):  
I. Dmitrik ◽  
G. Zavgorodnyaya
Keyword(s):  
Mechanical Strength ◽  
Breaking Load ◽  
Hair Follicles ◽  
Morphological Features ◽  
High Density ◽  
Fat Cells ◽  
High Quality ◽  
Histological Features ◽  
Weakened Zone

The morphological and histological features of the skin and wool cover of sheep as the basis for the quality of fur sheep pelts have been studied. The most important properties of sheep pelts (uniformity, thinness and density of wool) are provide the possibility of producing high-quality fur semi-finished products from them. However, the features of the histostructure of fine-wool sheep determine the low mechanical strength of the “facial” layer of skin. As a result, the “front” layer during processing often cracks to the upper border of the reticular layer or even peels off from the latter, making the sheep pelt unsuitable for use on fur products. These defects in fur practice are called “cracking” and “peeling” of the facial layer. They are mainly peculiar to sheep pelts of fine-wooled sheep. In these animals due to the high density and tone of the coat, the roots and hair follicles, root vaginas, secretory departments, excretory ducts of the glands and other structures occupy a significant share of the volume in the thickness of the Pilar layer (up to 25–30 %). The share of fibrous structures remains less volume, and these structures themselves are relatively weakly developed, located loosely and loosely intertwined with each other. The accumulations of fat cells that occur here also cannot be attributed to skin-strengthening elements. In fine-fleece sheep the pilar layer is on average 60 % of the thickness of the dermis. Therefore, more than half of its thickness is a weakened zone. The strength of the “front” layer is not the same in different fine-wool breeds of sheep and in different animals within the breed. For example, the average breaking load for cod of the “front” layer in Soviet Merino pelts is 1,25 kg, and in Precoce is 2,49 kg.

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