Paracellular permeability pathways in the human placenta: A quantitative and morphological study of maternal-fetal transfer of horseradish peroxidase

Placenta ◽  
1993 ◽  
Vol 14 (1) ◽  
pp. 63-73 ◽  
Author(s):  
D. Edwards ◽  
C.J.P. Jones ◽  
C.P. Sibley ◽  
D.M. Nelson
Keyword(s):  
Horseradish Peroxidase ◽  
Human Placenta ◽  
Morphological Study ◽  
Paracellular Permeability

Morphometric and Morphological Study of Human Placenta in Hypertensive Females of West U. P. India

2018 ◽  
Vol 4 (3) ◽  
Author(s):  
Chetna Thakur ◽  
Tejendra Singh ◽  
Bhawani Shankar ◽  
Shikha Sharma ◽  
G. S. Bindra
Keyword(s):  
Human Placenta ◽  
Morphological Study

Cytochemistry and morphometry of rat sciatic nerve following laser and suture treatments

1986 ◽  
Vol 44 ◽  
pp. 128-129
Author(s):  
A. Shah ◽  
J. E. Bailes ◽  
V. Sahgal ◽  
L. J. Cerullo
Keyword(s):  
Sciatic Nerve ◽  
Horseradish Peroxidase ◽  
Light Microscopy ◽  
Morphological Study ◽  
Wallerian Degeneration ◽  
Nerve Repair ◽  
Nerve Fibers ◽  
Relative Efficacy ◽  
Tracer Technique ◽  
Rat Sciatic Nerve

The success of nerve repair treatment can be measured by examining the factors (Wallerian degeneration) that prevent functional recovery, and determining the extent of regeneration of proximal axon sprouts in the endoneurial environment of the distal fascicles. In the present study, the neurosurgical alignment of fascicles was attempted by laser as well as suture microsurgery of transected rat sciatic nerve and the relative efficacy of the two procedures was evaluated after 6 and 12 weeks by Neurophysiological Study, Morphological Study with light microscopy, ultrastructure, and the permeability of blood-nerve barrier using horseradish peroxidase (HRP) tracer technique, and Morphometry of the nerve fibers.

scholarly journals Morphological Study of Human Placenta in Normal and Hypertensive Pregnancy

2019 ◽  
Vol 5 (2) ◽  
pp. 1-4
Author(s):  
K.M. Parmar ◽  
◽  
Hetal Vaishnani ◽  
G.V. Shah ◽  
◽  
...  
Keyword(s):  
Human Placenta ◽  
Morphological Study ◽  
Hypertensive Pregnancy

Effects of Vincristine on Endothelial Microtubules in the Spinal Cord

1976 ◽  
Vol 34 ◽  
pp. 58-59
Author(s):  
John L. Beggs ◽  
John D. Waggener ◽  
Wanda Miller
Keyword(s):  
Spinal Cord ◽  
Biological Activity ◽  
Horseradish Peroxidase ◽  
Transport Mechanism ◽  
Vasogenic Edema ◽  
Vesicular Transport ◽  
Close Proximity

Microtubules (MT) are versatile organelles participating in a wide variety of biological activity. MT involvement in the movement and transport of cytoplasmic components has been well documented. In the course of our study on trauma-induced vasogenic edema in the spinal cord we have concluded that endothelial vesicles contribute to the edema process. Using horseradish peroxidase as a vascular tracer, labeled endothelial vesicles were present in all situations expected if a vesicular transport mechanism was in operation. Frequently,labeled vesicles coalesced to form channels that appeared to traverse the endothelium. The presence of MT in close proximity to labeled vesicles sugg ested that MT may play a role in vesicular activity.

Techniques for preparing the Lolium perenne coleorhiza for scanning electron microscope evaluation

1992 ◽  
Vol 50 (1) ◽  
pp. 766-767
Author(s):  
Susan B.G. Debaene ◽  
John S. Gardner ◽  
Phil S. Allen
Keyword(s):  
Electron Microscope ◽  
Scanning Electron Microscope ◽  
Lolium Perenne ◽  
Morphological Study ◽  
Root Hairs ◽  
Inner Pressure ◽  
Water Potentials ◽  
Radicle Emergence ◽  
Standard Fixation ◽  
Scanning Electron

The coleorhiza is a nonvascular sheath that encloses the embryonic radicle in Poaceae, and is generally the first tissue to emerge during germination. Delicate hairlike extensions develop from some coleorhiza cells prior to radicle emergence. Similar to root hairs, coleorhiza hairs are extremely sensitive to desiccation and are damaged by exposure to negative water potentials. The coleorhiza of Lolium perenne is somewhat spherical when first visible, after which a knob forms at a right angle to the caryopsis due to inner pressure from the elongating radicle. This knob increases in length until the radicle finally punctures the coleorhiza. Standard fixation procedures cause severe desiccation of coleorhiza cells and hairs, making morphological study of the coleorhiza difficult. This study was conducted to determine a more successful process for coleorhiza preservation.

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