scholarly journals DEVELOPMENT OF HAIR AND OTHER EXTERNAL FEATURES IN PRENATAL ZEBU CATTLE AS AIDS IN FETAL AGEING

2021 ◽  
Vol 8 (2) ◽  
pp. 132-140
Author(s):  
S. A. Ojo
Keyword(s):  
Hair Growth ◽  
Hard Palate ◽  
Testicular Descent ◽  
Zebu Cattle ◽  
Limb Buds ◽  
Initial Appearance ◽  
Genital Tubercle

THE sequence and rate of hair growth studied in 150 fetuses, 100 to 231 days of age, from slaughtered Rahaji, Bunaji and Wadara cows. Initial appearance of the following external features were observed in embryo and fetuses from day 24 to 230 gestation: limb buds, mammary ridge, olfactory pits, eyes, eyelids, facial closure, intradigital grooves, ear pinnae, genital tubercle, teats, scrotum, testicular descent, hoof formation, boro buds, teeth eruption, fusion of hard palate, carpal and patella separation, and meconium detection, pattern of hair growth was founded to be indecisive as an aid to ageing Zebu fetuses. Initial appearance of certain external features could serve as a rough but quick ageing guide. 

Fine Structural Localization of Acyltransferases Involved in Lipid Synthesis in Intestinal Mucosa.

1970 ◽  
Vol 28 ◽  
pp. 54-55
Author(s):  
R. J. Barrnett ◽  
J. A. Higgins
Keyword(s):  
Smooth Endoplasmic Reticulum ◽  
Lipid Synthesis ◽  
Mucosal Cell ◽  
Structural Localization ◽  
Morphological Studies ◽  
Mucosal Cells ◽  
Initial Appearance ◽  
Sh Group ◽  
Hydrolysis Of ◽  
Intestinal Mucosal Cells

The main products of intestinal hydrolysis of dietary triglycerides are free fatty acids and monoglycerides. These form micelles from which the lipids are absorbed across the mucosal cell brush border. Biochemical studies have indicated that intestinal mucosal cells possess a triglyceride synthesising system, which uses monoglyceride directly as an acylacceptor as well as the system found in other tissues in which alphaglycerophosphate is the acylacceptor. The former pathway is used preferentially for the resynthesis of triglyceride from absorbed lipid, while the latter is used mainly for phospholipid synthesis. Both lipids are incorporated into chylomicrons. Morphological studies have shown that during fat absorption there is an initial appearance of fat droplets within the cisternae of the smooth endoplasmic reticulum and that these subsequently accumulate in the golgi elements from which they are released at the lateral borders of the cell as chylomicrons.We have recently developed several methods for the fine structural localization of acyltransferases dependent on the precipitation, in an electron dense form, of CoA released during the transfer of the acyl group to an acceptor, and have now applied these methods to a study of the fine structural localization of the enzymes involved in chylomicron lipid biosynthesis. These methods are based on the reduction of ferricyanide ions by the free SH group of CoA.

The Microscopy of Compatibility and Incompatibility in Ulmus

1985 ◽  
Vol 43 ◽  
pp. 504-505
Author(s):  
B. L. Redmond ◽  
Christopher F. Bob
Keyword(s):  
Dutch Elm Disease ◽  
Economic Losses ◽  
Hybrid Progeny ◽  
Ulmus Pumila ◽  
Ulmus Americana ◽  
American Elm ◽  
Asian Species ◽  
Ulmus Parvifolia ◽  
Initial Appearance ◽  
Chinese Elm

The American Elm (Ulmus americana L.) has been plagued by Dutch Elm Disease (DED), a lethal disease caused by the fungus Ceratocystis ulmi (Buisman) c. Moreau. Since its initial appearance in North America around 1930, DED has wrought inexorable devastation on the American elm population, triggering both environmental and economic losses. In response to the havoc caused by the disease, many attempts have been made to hybridize U. americana with a few ornamentally less desirable, though highly DED resistant, Asian species (mainly the Siberian elm, Ulmus pumila L., and the Chinese elm Ulmus parvifolia Jacq.). The goal is to develop, through breeding efforts, hybrid progeny that display the ornamentally desirable characteristics of U. americana with the disease resistance of the Asian species. Unfortunately, however, all attempts to hybridize U. americana have been prevented by incompatibility. Only through a firm understanding of both compatibility and incompatibility will it be possible to circumvent the incompatibility and hence achieve hybridization.

Adenoid Cystic Carcinoma of Lacrimal Gland

JMS SKIMS ◽  
2012 ◽  
Vol 15 (1) ◽  
pp. 76-77
Author(s):  
Mohd Athar ◽  
K S Sodhi ◽  
S Kala ◽  
R K Maurya ◽  
S Chauhan ◽  
...  
Keyword(s):  
Local Recurrence ◽  
Natural History ◽  
Adenoid Cystic Carcinoma ◽  
Salivary Glands ◽  
Hard Palate ◽  
Clinical Course ◽  
Fatal Outcome ◽  
Minor Salivary Glands ◽  
Adenoid Cystic ◽  
History Of

Adenoid cystic carcinoma is a relatively uncommon tumour of salivary, glands and is characterised by a prolonged clinical course and a fatal outcome. It was first described as `cylindroma' by Billroth in 1859. Half of these tumors occur in glandular tissues other than the major salivary glands; principally in the hard palate, but they can also arise in the tongue and minor salivary glands. Unusual locations include the external auditory canal, nasopharynx, lacrimal glands, breast, vulva, esophagus, cervix and Cowper glands. The long natural history of this tumor and its tendency for local recurrence are well known. JMS 2012;15(1):76-77.

Exogenous androgens reduce the expression of INSL3, a hormone involved in normal testicular descent, in fetal Leydig cells

2014 ◽  
Author(s):  
W Colin Duncan ◽  
Fiona Connolly ◽  
Lyndsey Boswell ◽  
Graeme Burt ◽  
Alan S McNeilly ◽  
...  
Keyword(s):  
Leydig Cells ◽  
Testicular Descent ◽  
Fetal Leydig Cells

Hair Growth in Brown Bears and Its Application to Ecological Studies on Wild Bears

Mammal Study ◽  
2020 ◽  
Vol 45 (4) ◽  
Author(s):  
Mina Jimbo ◽  
Naoya Matsumoto ◽  
Hideyuki Sakamoto ◽  
Yojiro Yanagawa ◽  
Yoshiko Torii ◽  
...  
Keyword(s):  
Hair Growth ◽  
Ecological Studies ◽  
Brown Bears
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