The Effects of Age on Visual Functioning

Lederer, J.

doi:10.1111/j.1444-0938.1969.tb06618.x

Cited by 2 publications

(2 citation statements)

References 72 publications

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“…For example, type 1 α-meromycolic acid with a trans cyclopropane ring (II) from M. kansasii m\z 853, whose n-m-l values were 18-14-17 and 18-12-19, had the corresponding component with a cis cyclopropane (I) of m\z 839, whose n-m-l values were 19-14-17 and 19-12-19. The structural relationships between the cis-doublebond-containing, cis-cyclopropane-containing and trans-cyclopropane-containing meromycolic acids having n-m-l, n-m-l and (nk1)-m-l, respectively, may be explained by the scheme proposed by Lederer (1969) (Fig. 7).…”

Section: Figmentioning

confidence: 99%

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Location of functional groups in mycobacterial meromycolate chains; the recognition of new structural principles in mycolic acids

et al. 2002

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Mycobacterial α-, methoxy-and keto-mycolic acid methyl esters were separated by argentation chromatography into mycolates with no double bond, with one trans double bond or with one cis double bond. Meromycolic acids were prepared from each methyl mycolate fraction by pyrolysis, followed by silver oxide oxidation, and analysed by high-energy collision-induced dissociation/fast atom bombardment MS to reveal the exact locations of the functional groups within the meromycolate chain. The locations of cis and trans double bonds, cis and trans cyclopropane rings, methoxy and keto groups, and methyl branches within the meromycolate chain were determined from their characteristic fragment ion profiles, and the structures of the meromycolic acids, including those with three functional groups extracted from Mycobacterium tuberculosis H37Ra, Mycobacterium bovis BCG and Mycobacterium microti, were established. Meromycolic acids with one cis double bond were structurally closely related to those with one cis cyclopropane ring, whereas the meromycolic acids with one trans cyclopropane ring were closely related to the corresponding meromycolic acids with one cis cyclopropane ring. A close relationship between methoxy-and keto-meromycolic acids was also implied. The relationship between the meromycolic acids with a trans double bond and the other meromycolic acids was not clearly revealed, and they did not appear to be immediate substrates for trans cyclopropanation.

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Section: Figmentioning

confidence: 99%

“…Lederer's scheme showing the possible relationship between a cis double bond, a cis cyclopropane ring and a trans double bond with an adjacent methyl branch in meromycolic acid (Lederer, 1969).…”

Section: Figmentioning

confidence: 99%

Location of functional groups in mycobacterial meromycolate chains; the recognition of new structural principles in mycolic acids

et al. 2002

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Some History Notes on Optometry's Involvement with the Australian and New Zealand Association for the Advancement of Science

Wright

1983

Clinical and Experimental Optometry

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The histories of the Australian and New Zealand Association for the Advancement of Science and of the Australian Optometrical Association have interacted to the past advantage of optometry. From a fledgling in ANZAAS, optometry has advanced to be a discipline with its own body of knowledge well equippedNo identify and to pursue courses of research to advance the bounds of that body of knowledge. Lacking its own specialist scientific society optometry still seems to need ANZAAS. This paper ends by considering what duties optometry may owe to ANZAAS.

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The Effects of Age on Visual Functioning

Cited by 2 publications

References 72 publications

Location of functional groups in mycobacterial meromycolate chains; the recognition of new structural principles in mycolic acids

Location of functional groups in mycobacterial meromycolate chains; the recognition of new structural principles in mycolic acids

Some History Notes on Optometry's Involvement with the Australian and New Zealand Association for the Advancement of Science

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