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Vitamin A in acne vulgaris (1987)

LABADARIOS, D. ; CILLIERS, J. ; VISSER, L. ; [et al.]

Oxford, UK : Blackwell Publishing Ltd

Clinical and experimental dermatology 12 (1987), S. 0

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ISSN: 1365-2230

Source: Blackwell Publishing Journal Backfiles 1879-2005

Topics: Medicine

Notes: Thirty-five patients with acne vulgaris were studied regarding vitamin A and E status, and the safety and efficacy of vitamin A supplementation over a 6-week period. The patients studied had significantly lower plasma vitamin A levels than normal controls and a lower frequency of consumption of foods rich in vitamin A. Vitamin E status in the patients was similar to that of normal controls. Vitamin A supplementation had no significant effect on plasma vitamin A levels during the study, but the patients had significantly (P〈0.005) higher levels at 6 weeks post-supplementation when compared with pre-supplementation values. Furthermore, vitamin A supplementation was associated with a significant and progressive increase in plasma retinol ester concentration. Vitamin A at the dose administered was ineffective in the treatment of acne and was associated with symptoms compatible with hypervitaminosis A only in a small percentage of patients.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1111/j.1365-2230.1987.tb01942.x

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Ear-rot fungi and mycotoxins in South African corn of the 1989 crop exported to Taiwan (1994)

Rheeder, J. P. ; Sydenham, E. W. ; Marasas, W. F. O. ; [et al.]

Springer

Mycopathologia 127 (1994), S. 35-41

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ISSN: 1573-0832

Keywords: Aflatoxin ; Aspergillus ; Diplodia ; Fumonisin ; Fusarium ; Mycotoxins

Source: Springer Online Journal Archives 1860-2000

Topics: Biology , Medicine

Notes: Abstract A shipment of South African corn (1989) exported to Taiwan, was analyzed for various ear-rot fungi andFusarium mycotoxins. Two sets of samples, one from the points of origin in South Africa prior to shipment, and the other from the end-point distributors in Taiwan, were studied. Surface-sterilized kernels were plated onto two different agar media and the fungal colonies identified. High Performance Liquid Chromatography was used to analyze mycotoxin levels. The predominant ear-rot fungi, in decreasing order of isolation frequency, wereFusarium subglutinans, F. moniliforme, Diplodia maydis andF. graminearum. Aspergillus flavus andA. parasiticus were not isolated from samples prior to export, but a small number ofA. flavus isolates were found after shipment. The predominant mycotoxins were fumonisins B1 (0–865 ng/g) and B2 (0–250 ng/g). Low levels of moniliformin (≤390 ng/g) were detected in some samples before shipment. Zearalenone (25 ng/g), and nivalenol (120 ng/g) were detected in two out of 32 samples taken in Taiwan. The samples contained no detectable levels of either aflatoxins (〉0.5 ng/g) or deoxynivalenol (〉100 ng/g) before or after shipment.