M. Simpson

Publications135
h-index25
Citations1,785
Highly Influential Citations73
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Micro-organisms in filarial larvae (Nematoda).
Unusual bodies have been described in the hypodermal tissues of larval Dirofilaria immitis and Brugia pahangi. Ultrastructural evidence indicates that these bodies are probably Gram-negative… Expand
The borage family (Boraginaceae s.str.): A revised infrafamilial classification based on new phylogenetic evidence, with emphasis on the placement of some enigmatic genera
SYNTHESYS project by the European Community Research Infrastructure Action under the FP6 "Structuring the European Research Area" GB-TAF-4514 FP7 "Capacities" Programmes ES-TAF-136 AT-TAF-2001… Expand
Abnormally elevated VTG concentrations in flounder (Platichthys flesus) from the Mersey estuary (UK)--a continuing problem.
TLDR
A marked seasonal cycle in VTG concentrations in males is revealed: in late spring and summer, male flounder in the Mersey have relatively low concentrations of VTG, however, in mid-winter, mean concentrations were as high as 5 mg mL(-1). Expand
Phylogeny and Classification of the Haemodoraceae
The role of glutathione in L-2-chloropropionic acid induced cerebellar granule cell necrosis in the rat
TLDR
It is shown that a marked and sustained reduction in cerebellar GSH content by L-CPA may leave granule cells vulnerable to cytotoxic free radical damage leading to cell death, possibly mediated through excitatory amino acids, as well as supplementing GSH concentrations by administration of the isopropyl ester of glutathione (ip-GSH) at 1 g/kg, s.c. Expand
American amphitropical disjuncts: Perspectives from vascular plant analyses and prospects for future research
TLDR
Some features of AAD vascular plants are reviewed and summarized with suggestions for future research on this topic and an up-to-date compendium of examples are provided. Expand
Phylogenetic Implications of Pollen Ultrastructure in the Oldfieldioideae (Euphorbiaceae)
The pollen structure of members of Euphorbiaceae subfamilies Oldfieldioideae and Phyllanthoideae was studied using scanning and transmission electron microscopy in order to assess taxonomic… Expand
Further evidence that the blood/brain barrier impedes paraquat entry into the brain
TLDR
It is concluded that systemically administered paraquat does not pose a direct major neurotoxicological risk in the majority of brain regions which have a functional blood/brain barrier since paraqu at can be excluded from the brain by this barrier. Expand
Molecular and cellular pathology in environmental impact assessment
TLDR
Examples are given where this type of approach has begun to be used with marine animals, and where the value of the multidisciplinary mechanisic molecular cell biological method is rapidly emerging as a potentially powerful tool in environmental pathology. Expand
Pathology of the liver, kidney and gonad of flounder (Platichthys flesus) from a UK estuary impacted by endocrine disrupting chemicals.
TLDR
Initial results provide pathological evidence of xenobiotic exposure in flounder sampled from both estuaries, and preliminary findings from flounders sampled from Millport, an offshore site in Southwest Scotland, showed no histopathological evidence. Expand
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