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M Woodward

Publications and source records attributed to M Woodward.

134 records · Page 8Linked to original sources

Spatial orientation of microtubules in contractile fibroblasts in vivo.

Contracting fibrous tissues from skin wounds in pigs, and scars around silicone implants in humans, contained fibroblasts that had multiple bundles of 60--80 A microfilaments with electron-dense bodies, features typical of contractile fibroblasts both in vivo (myofibroblasts) and in vitro. These in vivo fibroblasts contained many 220 A diameter microtubules, which paralleled plasma membrane in these myofibroblasts strongly suggests a bracing or scaffolding function.

Animals↗

Myofibroblasts and free silicon around breast implants.

Fibrous tissue capsules, from around silicone breast implants, were examined by light microscopy, and by transmission and scanning electron microscopy, the latter combined with energy dispersive X-ray analysis. Contractile fibroblasts (myofibroblasts) were found in most of these fibrous capsules, and especially in those recently formed or manipulated. The element silicon was positively identified by X-ray analysis in half the tissue specimens. This material was found only around gel-filled implants. In the specimens studied, the clinical hardness of the breast was unrelated to the presence of silicon in the capsule.

Breast↗

The life cycle of the myofibroblast.

Myofibroblasts in pig granulating wounds have an identifiable life cycle that parallels the eight week span of contraction of the wounds. As seen by electron microscopy, fibroblasts with a contractile appearance became prominent within one week after wounding and persisted for 12 weeks, after which time they were not visible. Large tangled filaments, measuring 120 Angstrom units are prominent in fibroblasts in late contracted wounds and may be actin. Such filaments could preserve fibroblasts in a contracted state and allow time for the reorganization of collagen into a fixed rigid scar.

Animals↗

Mental disorder and homicide: a review of epidemiological research.

OBJECTIVE: This paper reviews 28 studies on the epidemiology of homicide committed by mentally disordered people, taken from recent international academic literature. METHODS: The studies included were identified as part of a wider systematic review of the epidemiology of offending combined with mental disorder. The main databases searched were Embase, Medline, HealthStar, Psyclit, Mental Health Abstracts, Applied Social Sciences Index and Abstracts, and Criminology Penology and Police Science Abstracts. A comprehensive search was made for studies published since 1990, supplemented with key studies from the 1980s identified through citation tracing and personal contacts. RESULTS: A summary is given in tabular form of the content and quality of each study. There is then discussion of the studies in eight categories: descriptive studies, studies of trends, comparative studies amongst homicide offenders, amongst prisoners and including general populations, studies of homicide of relatives, follow-up studies, and studies of recidivism. CONCLUSIONS: There is an association of homicide with mental disorder, most particularly with certain manifestations of schizophrenia, antisocial personality disorder and drug or alcohol abuse. However, the quality of epidemiological research in this area is not adequate to answer key questions, and prediction of potential for homicide remains elusive. Further research is needed.

Female↗