Mémoire sur les pièces solides des stellérides ...

Gaudry, Albert

doi:10.5962/bhl.title.11286

Cited by 4 publications

(5 citation statements)

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“…Using L. chaeretis as the type species Pilgrim (1931,1932) noted as a generic character that the lower premolars have well-developed anterior and posterior cusps. However, in Gaudry's (1861) original figure of the type mandible of this species the anterior cusps do not appear to be very large, and are certainly not as well developed as are those of L. silberbergi. Broom (1948) noted that in L. silberbergi the i&a-orbital canal is situated more posteriorly than is the case in Hyaena and Crocuta.…”

Section: Referred Specimensmentioning

confidence: 77%

The fossil carnivores of the Transvaal caves. The Lycyaenas of Sterkfontein and Swartkrans, together with some general considerations of the Transvaal fossil Hyaenids

Ewer

1955

Proceedings of the Zoological Society of London

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Summary. Two further specimens of Lycyaena silberbergi Broom have been found, one from the Sterkfontein Type Site and the other from Swartkrans. These include regions of the mandible anterior to what was present in Broom's type specimen, and permit the addition of some further details of the structure of this species. A new species, Lycyaena nitidula, is described from Swartkrans. One fragment from the Sterkfontein Type Site probably also belongs to this species. All the species of hyaenid at present known from the three sites, Kromdraai, Swartkrans and the Sterkfontein Type Site are tabulated. Their relationships to other hyaenids are discussed, and their implications as to the relative and absolute dates of the three deposits are considered. It is concluded that of the three deposits the Sterkfontein Type Site is the oldest, separated by only a short time interval from Swartkrans, with Kromdraai later still and separated from Swartkrans by a rather longer time interval. Kromdraai is estimated to be of early Pleistocene age, and Swartkrans and the Sterkfontein Type Site are considered to belong to the top of the upper Pliocene.

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Section: Referred Specimensmentioning

confidence: 77%

The fossil carnivores of the Transvaal caves. The Lycyaenas of Sterkfontein and Swartkrans, together with some general considerations of the Transvaal fossil Hyaenids

Ewer

1955

Proceedings of the Zoological Society of London

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“…The facts that chemotactic response to FMLP was inhibited by chelerythrine but not by KT5823, indicate that PKC is involved in monocyte locomotion induced by FMLP. Gaudry et al (26) have reported that PKC is involved in polymorphonuclear neutrophil locomotion induced by FMLP. Furthermore, Kawamoto and Hidaka (27) have demonstrated that PKCcatalyzed phosphorylation of cytoskeletal proteins, vinculin and filamin, may be implicated in the morphological changes for locomotion.…”

Section: Discussionmentioning

confidence: 99%

Elastin‐derived peptide induces monocyte chemotaxis by increasing intracellular cyclic GMP level and activating cyclic GMP dependent protein kinase

Uemura

Okamoto

1997

IUBMB Life

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An elastin‐derived peptide with an average molecular mass of 25 kDa was shown to induce monocyte chemotaxis at the optimal concentration of 10‐1 μg/ml. Homologous deactivation test showed that monocytes exposed to the elastin‐derived peptide at 10‐1 μg/ml lost their chemotactic responsiveness when reexposed to the same stimulus. In conjunction with chemotactic response to the elastin‐derived peptide, intracellular guanosine 3′, 5′‐monophosphate (cGMP) levels were enhanced but intracellular adenosine 3′, 5′‐monophosphate (cAMP) levels were not. The monocyte migration induced by the elastin‐derived peptide was inhibited by cGMP dependent protein kinase (PKG) inhibitor, but not by cAMP dependent protein kinase inhibitor and protein kinase C inhibitor. These results suggest that the elastin‐derived peptide induces monocyte chemotaxis by increasing the level of cGMP, followed by activating PKG.

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“…Attempts to isomerize the unwanted isomer into 10 exclusively furnished methyl 2-isopropenyl-2-hutenoate. Alcohol I I was also synthesized starting with bromomethyl isopropyl ketone [9]. The latter reacted with vinyl MgBr, [lo] in THF to I-isopropyl-I-vinylethylenoxide (80%), which was converted to 11 with the magnesium derivative of isopropylcyclohexylamine (MICA) [ 1 I] in SO YO yield.…”

Section: Methodsmentioning

confidence: 99%

“…Methyl 3-MethyI-2-[2-(phenylseleno)ethyl]-2-butenoate (9). Diphenyl diselenide (12.5 g, 40 mmol) in 100 ml abs.…”

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confidence: 99%

Total Synthesis of (±)‐2‐Pupukeanone

Fráter

Wenger

1984

Helvetica Chimica Acta

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(±)‐2‐Pupukenone (4) has been synthesized, the key step being the intramolcular Diels‐Alder reaction of the intermediate 13 to 14 (42%) and 15 (14%). The bromodiene 12 has been obtained from the reaction of α‐isopropylidene‐γ‐lactone (Scheme 2) 12 with sodium phenylselenide and subsequent esterification to 9, oxidation and thermal elimination of which furnished 10. Reduction of 10 with diisobutylaluminimum hydride and treatment of the resulting alcohol 11 with PBr3 led to the required bromodiene 12. Finally, hydrogenation of the 14 on Pt(C) in CH3OH gave a 4:1 mixture of 2‐pupukeanone (4) and epi‐2‐pupukeanone 16.

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Mémoire sur les pièces solides des stellérides ...

Cited by 4 publications

References 0 publications

The fossil carnivores of the Transvaal caves. The Lycyaenas of Sterkfontein and Swartkrans, together with some general considerations of the Transvaal fossil Hyaenids

The fossil carnivores of the Transvaal caves. The Lycyaenas of Sterkfontein and Swartkrans, together with some general considerations of the Transvaal fossil Hyaenids

Elastin‐derived peptide induces monocyte chemotaxis by increasing intracellular cyclic GMP level and activating cyclic GMP dependent protein kinase

Total Synthesis of (±)‐2‐Pupukeanone

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