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We report on 2 cases of the effect of modafinil on the self-esteem of patients with spinal cord injury (SCI). The first patient was a 33-year-old man with history of polysubstance abuse and a C6 American Spinal Injury Association (ASIA) grade A injury, who presented for follow-up to the outpatient rehabilitation clinic for depression, decreased motivation, and lowered self-esteem. The patient had tried a selective serotonin reuptake inhibitor (SSRI) without success, and reported increasing social and legal stressors. Within 1 month of starting on modafinil, he reported increased self-esteem and motivation, as well as decreased self-consciousness. The second patient was a 36-year-old woman with history of depression and a T11 ASIA grade A injury. She tried various SSRIs for depression and adjustment issues before she was started on modafinil. She lost weight and became more assertive and less self-conscious within 1 month after starting on modafinil. These 2 cases suggest that modafinil should be studied as a therapeutic option for treating lowered self-esteem in patients with SCI. Copyright © 2005 by the American Congress of Rehabilitation Medicine and the American Academy of Physical Medicine and Rehabilitation [ABSTRACT FROM AUTHOR]

Background: Breast cancer is a heterogeneous disease associated with different patient prognosis and responses to therapy. Vitamin D has been emerging as a potential treatment for cancer, as it has been demonstrated that it modulates proliferation, apoptosis, invasion and metastasis, among others. It acts mostly through the Vitamin D receptor (VDR) and the synthesis and degradation of this hormone are regulated by the enzymes CYP27B1 and CYP24A1, respectively. We aimed to study the expression of these three proteins by immunohistochemistry in a series of breast lesions.Methods: We have used a cohort comprising normal breast, benign mammary lesions, carcinomas in situ and invasive carcinomas and assessed the expression of the VDR, CYP27B1 and CYP24A1 by immunohistochemistry.Results: The results that we have obtained show that all proteins are expressed in the various breast tissues, although at different amounts. The VDR was frequently expressed in benign lesions (93.5%) and its levels of expression were diminished in invasive tumours (56.2%). Additionally, the VDR was strongly associated with the oestrogen receptor positivity in breast carcinomas. CYP27B1 expression is slightly lower in invasive carcinomas (44.6%) than in benign lesions (55.8%). In contrast, CYP24A1 expression was augmented in carcinomas (56.0% in in situ and 53.7% in invasive carcinomas) when compared with that in benign lesions (19.0%).Conclusions: From this study, we conclude that there is a deregulation of the Vitamin D signalling and metabolic pathways in breast cancer, favouring tumour progression. Thus, during mammary malignant transformation, tumour cells lose their ability to synthesize the active form of Vitamin D and respond to VDR-mediated Vitamin D effects, while increasing their ability to degrade this hormone. [ABSTRACT FROM AUTHOR]