Semak, Igor

Novel activities of CYP11A1 and their potential physiological significance

Slominski, A. T., Li, W., Kim, T.-K., Semak, I., Wang, J., Zjawiony, J. K., & Tuckey, R. C. (2015) · The Journal of Steroid Biochemistry and Molecular Biology

Steroid Chemistry and BiochemistryCholesterol and Lipid Metabolism

Cited by 292

In vivo evidence for a novel pathway of vitamin D 3 metabolism initiated by P450scc and modified by CYP27B1

Slominski, A. T., Kim, T., Shehabi, H. Z., Semak, I., Tang, E. K. Y., Nguyen, M. N., Benson, H. A. E., Korik, E., Janjetovic, Z., Chen, J., et al. (2012) · The FASEB Journal

Vitamin D Research StudiesSteroid Chemistry and Biochemistry

Cited by 266

A novel pathway for sequential transformation of 7-dehydrocholesterol and expression of the P450scc system in mammalian skin

Slominski, A., Zjawiony, J., Wortsman, J., Semak, I., Stewart, J., Pisarchik, A., Sweatman, T., Marcos, J., Dunbar, C., & C. Tuckey, R. (2004) · European Journal of Biochemistry

Steroid Chemistry and BiochemistryCholesterol and Lipid Metabolism

Cited by 243

CRH stimulation of corticosteroids production in melanocytes is mediated by ACTH

Slominski, A., Zbytek, B., Szczesniewski, A., Semak, I., Kaminski, J., Sweatman, T., & Wortsman, J. (2005) · American Journal of Physiology-Endocrinology and Metabolism

Stress Responses and Cortisolmelanin and skin pigmentation

Cited by 211

The cytochrome P450scc system opens an alternate pathway of vitamin D3 metabolism

Slominski, A., Semak, I., Zjawiony, J., Wortsman, J., Li, W., Szczesniewski, A., & Tuckey, R. C. (2005) · The FEBS Journal

Vitamin D Research StudiesSteroid Chemistry and Biochemistry

Cited by 155

CRH stimulates POMC activity and corticosterone production in dermal fibroblasts

Slominski, A., Zbytek, B., Semak, I., Sweatman, T., & Wortsman, J. (2005) · Journal of Neuroimmunology

Stress Responses and CortisolAdrenal Hormones and Disorders

Cited by 143

In vivo production of novel vitamin D2 hydroxy-derivatives by human placentas, epidermal keratinocytes Caco-2 colon cells and the adrenal gland

Slominski, A. T., Kim, T.-K., Shehabi, H. Z., Tang, E. K. Y., Benson, H. A. E., Semak, I., Lin, Z., Yates, C. R., Wang, J., Li, W., et al. (2014) · Molecular and Cellular Endocrinology

Vitamin D Research StudiesPharmacogenetics and Drug Metabolism

Cited by 100

An alternative pathway of vitamin D2 metabolism: Cytochrome P450scc (CYP11A1)‐mediated conversion to 20‐hydroxyvitamin D2 and 17,20‐dihydroxyvitamin D2

Slominski, A., Semak, I., Wortsman, J., Zjawiony, J., Li, W., Zbytek, B., & Tuckey, R. C. (2006) · The FEBS Journal

Vitamin D Research StudiesSteroid Chemistry and Biochemistry

Cited by 98

Sequential metabolism of 7-dehydrocholesterol to steroidal 5, 7-dienes in adrenal glands and its biological implication in the skin

Slominski, A. T., Zmijewski, M. A., Semak, I., Sweatman, T., Janjetovic, Z., Li, W., Zjawiony, J. K., & Tuckey, R. C. (2009) · PLoS ONE

Steroid Chemistry and BiochemistryCholesterol and Lipid Metabolism

Cited by 90

Novel vitamin D photoproducts and their precursors in the skin

Slominski, A., Kim, T.-K., Zmijewski, M. A., Janjetovic, Z., Li, W., Chen, J., Kusniatsova, E. I., Semak, I., Postlethwaite, A., Miller, D. D., et al. (2013) · Dermato-Endocrinology

Vitamin D Research StudiesSteroid Chemistry and Biochemistry

Cited by 76

Enzymatic Metabolism of Ergosterol by Cytochrome P450scc to Biologically Active 17α,24-Dihydroxyergosterol

Slominski, A., Semak, I., Zjawiony, J., Wortsman, J., Gandy, M. N., Li, J., Zbytek, B., Li, W., & Tuckey, R. C. (2005) · Chemistry & Biology

Steroid Chemistry and BiochemistryCholesterol and Lipid Metabolism

Cited by 69