{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,9]],"date-time":"2026-07-09T21:47:17Z","timestamp":1783633637549,"version":"3.55.0"},"reference-count":19,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2005,6,16]],"date-time":"2005-06-16T00:00:00Z","timestamp":1118880000000},"content-version":"vor","delay-in-days":4794,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["pathsocjournals.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["The Journal of Pathology"],"published-print":{"date-parts":[[1992,5]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>The aims of this study in 227 premenopausal women were (a) to determine the mitotic index (MI), the thymidine labelling index (LI), and the apoptotic index (AI) within the epithelial cells of histologically \u2018normal\u2019 human breast biopsy material removed away from the site of either a fibroadenoma or a carcinoma; and (b) to relate differences in the kinetic indices of the \u2018normal\u2019 epithelium to the pathology in the same breast diagnosed as fibroadenoma alone (125 patients), fibroadenoma with accompanying mild fibrocystic change (79 patients), or carcinoma (23 patients). Ratios of the average indices (AI\/MI, AI\/LI, MI\/LI) were also calculated to minimize uncertainties related to the total cell population counted, the denominator in the LI, MI, and AI All indices and ratios of indices were corrected for age, averaged over the cycle, and expressed as log\u2010transformed values for analysis. Significant (<jats:italic>P<\/jats:italic>&lt;0.001) reductions in AI and in apoptosis relative to mitosis (reduced AI\/MI) were found in \u2018normal\u2019 epithelium from breasts having fibrocystic change (AI = 0.17 \u00b1 0.02; AI\/MI = 1.01 \u00b1 0.18) and carcinoma (AI = 0.19 \u00b1 0.04; AI\/MI=0.8 \u00b1 0.29), compared with breast with fibroadenoma alone (AI = 0.27 \u00b1 0.03; AI\/MI = 1.29 \u00b1 0.39). In the absence of significant differences in MI and LI between the \u2018normal\u2019 tissue groups, this finding raises the possibility that reduced epithelial cell apoptosis might be causally associated with the development of fibrocystic change and with an increased risk of development of carcinoma. Reduced apoptosis may lead to a shift in tissue kinetics towards expansion of cell numbers, and also to the preservation of genetically aberrant cells, favouring neoplastic development. The indices, however, are complex and must be interpreted with caution.<\/jats:p>","DOI":"10.1002\/path.1711670106","type":"journal-article","created":{"date-parts":[[2005,6,22]],"date-time":"2005-06-22T14:23:06Z","timestamp":1119450186000},"page":"25-32","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":86,"title":["Reduction in apoptosis relative to mitosis in histologically normal epithelium accompanies fibrocystic change and carcinoma of the premenopausal human breast"],"prefix":"10.1002","volume":"167","author":[{"given":"David J.","family":"Allan","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Anthony","family":"Howell","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Stephen A.","family":"Roberts","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Gerrard T.","family":"Williams","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Robert J.","family":"Watson","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"John D.","family":"Coyne","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Robert B.","family":"Clarke","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ian J.","family":"Laidlaw","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Christopher S.","family":"Potten","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2005,6,16]]},"reference":[{"key":"e_1_2_1_2_2","doi-asserted-by":"publisher","DOI":"10.1038\/bjc.1981.168"},{"key":"e_1_2_1_3_2","doi-asserted-by":"publisher","DOI":"10.1007\/BF00431076"},{"key":"e_1_2_1_4_2","doi-asserted-by":"publisher","DOI":"10.1002\/aja.1001850104"},{"key":"e_1_2_1_5_2","doi-asserted-by":"publisher","DOI":"10.1038\/bjc.1988.185"},{"key":"e_1_2_1_6_2","first-page":"1055","article-title":"Relationship between component parts of fibrocystic disease complex and breast cancer","volume":"61","author":"Page DL","year":"1978","journal-title":"J Natl Cancer Inst"},{"key":"e_1_2_1_7_2","doi-asserted-by":"publisher","DOI":"10.1093\/jnci\/50.1.21"},{"key":"e_1_2_1_8_2","first-page":"353","article-title":"Tokunaga\nM. 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