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Antitumor compounds from tunicates
Medicinal Research Reviews, 2000Of the six marine-derived compounds that have reached clinical trials as antitumor agents three-didemnin B, Aplidine, and ecteinascidin 743-are derived from tunicates. Di-demnin B (DB), a cyclic depsipeptide from the compound tunicate Trididemnum solidum, was the first marine-derived compound to enter Phases I and II clinical trials.
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Fibrous pseudotumor of testicular tunic
Urology, 1982Abstract Fibrous pseudotumor of the testicular tunic is a non-neoplastic reactive process of the tunica vaginalis in which multiple firm nodules occur in the thickened serosal covering of the tunica or may even be free within it. The morphologic changes reveal a cellular spectrum that includes granulation tissue, fibroblastic proliferationm and ...
S M, Sajjad, M R, Azizi, L, Llamas
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1996
It is well known that vertebrates have a sophisticated recognition system known as the immune system. Using this immune system, animals can eliminate invasive microorganisms, such as viruses, bacteria, and parasites, and can also clear denatured cells and metabolic wastes from their bodies.
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It is well known that vertebrates have a sophisticated recognition system known as the immune system. Using this immune system, animals can eliminate invasive microorganisms, such as viruses, bacteria, and parasites, and can also clear denatured cells and metabolic wastes from their bodies.
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Vanadium content of some tunicates
Comparative Biochemistry and Physiology, 1963Abstract 1. 1. Twenty-nine species of tunicates were examined for vanadium. 2. 2. High concentrations of vanadium were observed only in ascidians of the order Phlebobranchia. 3. 3. Centrifuged blood cells of Ascidia nigra (Savigny) were found to contain 1.45 per cent vanadium. 4. 4. Eggs of Phallusia mamillata Cuvier yielded 0·017
L S, CIERESZKO +3 more
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The Chemistry of Marine Tunicates
2012Alkaloids, Peptides, Meroterpenes, Macrolides, Other nonnitrogenous Products, Sulfur-Containing ...
MENNA, MARIALUISA, AIELLO, ANNA
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Acetylcholine and cholinesterase in tunicates
Comparative Biochemistry and Physiology, 1963Abstract 1. 1. The ganglion of Ciona intestinalis L. was isolated and extracted. Acetylcholine determinations by bioassay on isolated hearts of Venus and Tapes indicated an acetylcholine content of 20–120 μg/g wet weight. The acetylcholine content of the body wall (without tunic) was found to be between 0·01 and 0·2 μg/g wet weight. 2.
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Cytotoxic Activity of Tunicate Hemocytes
1996Tunicates (protochordates) are filter-feeding marine invertebrates with a worldwide distribution. In their larval form, they exhibit many of the features characteristic of the vertebrates. The larva, with a tail, notochord, and dorsal neural tube, upon settlement undergoes a remarkable metamorphosis in which it loses most of its chordate ...
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1984
Very little work on these animals has been reported since the first edition of this book. An important observation, however, is that cynthiaxanthin first isolated from Halocynthia (Cynthia) papillosa [1–5], and pectenoxanthin from Botryllus schlosseri [2] are identical with the acetylenic carotenoid alloxanthin (1.2) [6]. Astaxanthin (1.1) is the major
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Very little work on these animals has been reported since the first edition of this book. An important observation, however, is that cynthiaxanthin first isolated from Halocynthia (Cynthia) papillosa [1–5], and pectenoxanthin from Botryllus schlosseri [2] are identical with the acetylenic carotenoid alloxanthin (1.2) [6]. Astaxanthin (1.1) is the major
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