Effect of vitamin D metabolites on calcitriol degradative enzymes in renal failure

Vitamin D, calcidiol and calcitriol regulate vitamin D metabolizing enzymes in cervical and ovarian cancer cells.

BACKGROUND The vitamin D metabolizing enzymes 25-, 1α- and 24-hydroxylase are expressed in malignant cells of the cervix and the ovaries. The aim of this study was to obtain further information about the regulation of the aforementioned enzymes by vitamin D, calcidiol and calcitriol in cervical and ovarian cancer. MATERIALS AND METHODS The human cervical adenocarcinoma cell line HeLa and the ...

“Calcitriol” Is Not Synonymous with “Vitamin D”

Regarding the recent article by Shaygannejad et al. [1], we are writing to express serious concerns about the portrayal of the intervention and the authors' interpretation and discussion of the findings. Of predominate concern is that the authors utilized a calcitriol intervention in their study but referred to it as " vitamin D ". The erroneous use of the term " vitamin D " is of concern for s...

Molecular mechanisms of vitamin D hyporesponsiveness in renal failure.

the washback effect of discretepoint vs. integrative tests on the retention of content in knowledge tests

در این پایان نامه تاثیر دو نوع تست جزیی نگر و کلی نگر بر به یادسپاری محتوا ارزیابی شده که نتایج نشان دهندهکارایی تستهای کلی نگر بیشتر از سایر آزمونها است

Degradative enzymes in osteoarthritis.

A central feature of the osteoarthritic disease process involves erosive destruction of the articular cartilage extracellular matrix (ECM) on the surfaces of diarthrotic joints. The resultant loss of joint function makes studies on mechanisms underlying ECM degradation critical for treatment of the disease and prevention of disability. Candidate pathways to account for the loss of cartilage inv...