scholarly journals In Situ Morphology of the Heart and Great Vessels in Fetal and Newborn Rats

1987 ◽  
Vol 22 (5) ◽  
pp. 573-580 ◽  
Author(s):  
Kazuo Momma ◽  
Atsuyoshi Takao ◽  
Ryuichi Ito ◽  
Toshio Nishikawa
1970 ◽  
Vol 47 (3) ◽  
pp. 593-603 ◽  
Author(s):  
A. Gedeon Matoltsy ◽  
Margit N. Matoltsy

Keratohyalin granules were isolated in the native form from the epidermis of newborn rats by the use of citric acid and a detergent. The isolated granules revealed a fine granular substructure in the electron microscope similar to that seen in situ. Analyses of amino acids by automated column-chromatography showed that proline and cystine are present in large proportions whereas histidine is present in a small amount. Accordingly, it was concluded that keratohyalin represents a sulfur-rich amorphous precursor of the horny cell content, rather than a sulfur-poor side product of the keratinization process, or a unique histidine-rich protein as proposed by in situ histochemical and radioautographic studies.


2020 ◽  
Vol 4 (6) ◽  
pp. 2831-2840 ◽  
Author(s):  
Xiaowei An ◽  
Shasha Li ◽  
Xiaoqiong Hao ◽  
Xiao Du ◽  
Tao Yu ◽  
...  

An in situ morphological transformation phenomenon accompanied by petal-shaped Bi2O2CO3 nanosheets formation has been observed to help improving electrocatalytic performance.


Langmuir ◽  
2003 ◽  
Vol 19 (17) ◽  
pp. 6723-6729 ◽  
Author(s):  
Tetsuya Arita ◽  
Yoichi Kanda ◽  
Hidenori Hamabe ◽  
Tomoe Ueno ◽  
Yasuhiko Watanabe ◽  
...  

2013 ◽  
Vol 10 (11) ◽  
pp. 4120-4135 ◽  
Author(s):  
Nilesh P. Ingle ◽  
Lian Xue ◽  
Theresa M. Reineke

1991 ◽  
Vol 2 (2) ◽  
pp. 113-124 ◽  
Author(s):  
J. A. McNulty ◽  
L. M. Fox ◽  
P. L. Shaw ◽  
V. E. Alones ◽  
B. S. Klausen ◽  
...  

Pineal glands from neonatal (0-1 day) Long-Evans black-hooded rats were transplanted into the cerebral hemispheres of litter mates for periods of 1 to 5.5 months. Grafts exhibited differentiated pinealocytes that were intensely immunoreactive for serotonin. Transplant vasculature was permeable to endogenous IgG, comprised fenestrated endothelia with wide pericapillary spaces typical ofin situglands, and had a volume density intermediate to that of surrounding cortex andin situpineals. Along the periphery, transplant capillaries tended to have continuous endothelia similar to those of host cortex. This peripheral zone was impermeable to endogenous IgG and appeared to increase in size in older grafts. The presence of noradrenergic-like fibers within the perivascular compartment suggested that transplants were innervated by peripheral sympathetic neurons from the superior cervical ganglia. In animals which had been superior cervical ganglionectomized, noradrenergic-like fibers were absent or degenerating. Neural regulation of transplant metabolic activity was suggested by the increased frequency of pinealocyte synaptic ribbons in denervated grafts. These findings are consistent with the hypothesis that factors from both graft and host influence vasculature physiology and differentiation in neural transplants. Furthermore, grafts appeared to receive appropriate neural input from the peripheral sympathetic system.


1992 ◽  
Vol 32 (4) ◽  
pp. 386-389 ◽  
Author(s):  
Kazuo Momma ◽  
Tadahiko Ito ◽  
Masahiko Ando

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