ChemInform Abstract: Terpenoids from Ligularia virgaurea Collected in China: The First Example of Two Bakkane Derivatives with an Anhydride-Type Ring C and Nineteen New Chemical Constituents.

Yoshinori Saito; Saori Iga; Katsuyuki Nakashima; Yasuko Okamoto; Xun Gong; Chiaki Kuroda; Motoo Tori

doi:10.1002/chin.201607205

ChemInform Abstract: Terpenoids from Ligularia virgaurea Collected in China: The First Example of Two Bakkane Derivatives with an Anhydride-Type Ring C and Nineteen New Chemical Constituents.

ChemInform ◽

10.1002/chin.201607205 ◽

2016 ◽

Vol 47 (7) ◽

pp. no-no

Author(s):

Yoshinori Saito ◽

Saori Iga ◽

Katsuyuki Nakashima ◽

Yasuko Okamoto ◽

Xun Gong ◽

...

Keyword(s):

Chemical Constituents ◽

Ligularia Virgaurea

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Chemical constituents of Ligularia virgaurea and its diversity in southwestern Sichuan of China

Tetrahedron ◽

10.1016/j.tet.2006.02.078 ◽

2006 ◽

Vol 62 (20) ◽

pp. 4988-4995 ◽

Cited By ~ 61

Author(s):

Motoo Tori ◽

Kaori Honda ◽

Hiromi Nakamizo ◽

Yasuko Okamoto ◽

Misato Sakaoku ◽

...

Keyword(s):

Chemical Constituents ◽

Ligularia Virgaurea

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Terpenoids from Ligularia virgaurea collected in China: the first example of two bakkane derivatives with an anhydride-type ring C and nineteen new chemical constituents

Tetrahedron ◽

10.1016/j.tet.2015.09.011 ◽

2015 ◽

Vol 71 (44) ◽

pp. 8428-8435 ◽

Cited By ~ 8

Author(s):

Yoshinori Saito ◽

Saori Iga ◽

Katsuyuki Nakashima ◽

Yasuko Okamoto ◽

Xun Gong ◽

...

Keyword(s):

Chemical Constituents ◽

Ligularia Virgaurea

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Electron microscopic studies on ultrathin frozen sections of lactating mouse mammary gland

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100081097 ◽

1978 ◽

Vol 36 (2) ◽

pp. 46-47

Author(s):

Jan Zarzycki ◽

Joseph Szroeder

Keyword(s):

Mammary Gland ◽

Protein Denaturation ◽

Chemical Constituents ◽

Freeze Substitution ◽

Electron Microscopic Examination ◽

Mouse Mammary Gland ◽

Electron Microscopic ◽

Preparation Methods ◽

Microscopic Studies ◽

Ultrathin Frozen Sections

The mammary gland ultrastructure in various functional states is the object of our investigations. The material prepared for electron microscopic examination by the conventional chemical methods has several limitations, the most important are the protein denaturation processes and the loss of large amounts of chemical constituents from the cells. In relevance to this,one can't be sure about a degree the observed images are adequate to the realy ultrastructure of a living cell. To avoid the disadvantages of the chemical preparation methods,some autors worked out alternative physical methods based on tissue freezing / freeze-drying, freeze-substitution, freeze-eatching techniqs/; actually the technique of cryoultraraicrotomy,i,e.cutting ultrathin sections from deep frozen specimens is assented as a complete alternative method. According to the limitations of the routine plastic embbeding methods we were interested to analize the mammary gland ultrastructure during lactation by the cryoultramicrotomy method.

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Sem and X-Ray Analysis of Renal and Biliary Calculi

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100091512 ◽

1976 ◽

Vol 34 ◽

pp. 306-307

Author(s):

R. J. Narconis ◽

G. L. Johnson

Keyword(s):

Chemical Constituents ◽

Natural State ◽

X Ray Diffraction ◽

Chemical Methods ◽

X Ray ◽

Additional Dimension ◽

Biliary Calculi ◽

Calculus Formation ◽

Scanning Electron

Analysis of the constituents of renal and biliary calculi may be of help in the management of patients with calculous disease. Several methods of analysis are available for identifying these constituents. Most common are chemical methods, optical crystallography, x-ray diffraction, and infrared spectroscopy. The application of a SEM with x-ray analysis capabilities should be considered as an additional alternative.A scanning electron microscope equipped with an x-ray “mapping” attachment offers an additional dimension in its ability to locate elemental constituents geographically, and thus, provide a clue in determination of possible metabolic etiology in calculus formation. The ability of this method to give an undisturbed view of adjacent layers of elements in their natural state is of advantage in determining the sequence of formation of subsequent layers of chemical constituents.

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