(1) Background: Vitamin D plays an important role in many types of cancer. It was the aim of
this study to analyze serum 25-hydroxyvitamin D (25 (OH) D) levels in newly diagnosed …

Background Vitamin D is a steroid hormone that exerts its actions through ligation of the
vitamin D receptor (VDR), a transcription factor of the nuclear receptor family. VDR has not …

(1) Background: Vitamin D levels in patients remain inadequately understood, with research
yielding inconsistent findings. Breast cancer patients, particularly due to oncological …

Purpose Vitamin D has been linked to breast cancer risk, but prognostic effects are
unknown. Such effects are biologically plausible given the presence of vitamin D receptors …

Background Few studies have investigated vitamin D status in association with modifiable
lifestyle factors and clinical characteristics among breast cancer patients, with no studies …

Introduction Serum vitamin D levels measured as 25-hydroxyvitamin D have been shown to
be low in cancer patients, including breast cancer patients. However, the vitamin D status …

Vitamin D deficiency in the patients treated for breast cancer is associated with numerous
adverse effects (bone loss, arthralgia, and falls). The first aim of this study was to assess …

Background Breast cancer (BC) is the leading cause of female death from malignancy
worldwide. One factor that has been associated to a higher incidence and poor prognosis is …

Purpose Vitamin D deficiency is associated with increased breast cancer risk and decreased
breast cancer survival. The purpose of this study was to determine the prevalence of vitamin …

Aim: There are inconsistent results about the effects of vitamin D level on breast cancer
prognosis. We aimed to investigate the effect of vitamin D levels on the prognosis of …