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In addition to weaning, administration of teriparatide followed by denosumab led to remarkable improvement in the patient's symptoms and BMD. Therefore, we regard this method as a promising choice for the treatment of PLO.

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Atypical protein kinase C λ/ι (aPKCλ/ι) is a regulator of epithelial cellular polarity. It is also overexpressed in several cancers and functions in cell proliferation and invasion. Therefore, we hypothesized that aPKCλ/ι may be involved in development and progression of cervical intraepithelial neoplasia (CIN), the precancerous disease of cervical cancer induced by human papillomavirus. To do this, we investigated the relationship between aPKCλ/ι expression and CIN. aPKCλ/ι expression level and subcellular localization were assessed in 192 CIN biopsy samples and 13 normal epithelial samples using immunohistochemistry. aPKCλ/ι overexpression (normal epithelium, 7.7%; CIN1, 41.7%; CIN2/3, 76.4%) and aPKCλ/ι nuclear localization (normal epithelium, 0.0%; CIN1, 36.9%; CIN2/3, 78.7%) were higher in CIN samples than normal samples (P<0.05), suggesting that CIN grade is related to aPKCλ/ι overexpression and nuclear localization. Then, 140 CIN cases were retrospectively analyzed for 4-yr cumulative disease progression and regression rates using the Cox proportional hazards model. CIN1 cases with aPKCλ/ι overexpression or aPKCλ/ι nuclear localization had a higher progression rate than CIN1 cases with normal aPKCλ/ι expression levels or cytoplasmic localization (62.5% vs. 9.7% and 63.1% vs. 9.4%, respectively; P<0.001). Multivariate analysis indicated that human papillomavirus types 16 and 18, aPKCλ/ι overexpression (hazard ratio=4.26; 95% confidence interval, 1.50-12.1; P=0.007), and aPKCλ/ι nuclear localization (hazard ratio=3.59; 95% confidence interval, 1.24-10.4; P=0.019) were independent risk factors for CIN1 progression. In conclusion, aPKCλ/ι could be useful for the therapeutic management of patients with CIN, particularly those with non-human papillomavirus 16/18 types.