Zobrazeno 1 - 10
of 184
pro vyhledávání: '"Christopher T. Sempos"'
Autor:
Martina Rabenberg, Christa Scheidt-Nave, Markus A. Busch, Michael Thamm, Nina Rieckmann, Ramón A. Durazo-Arvizu, Kirsten G. Dowling, Zuzana Škrabáková, Kevin D. Cashman, Christopher T. Sempos, Gert B. M. Mensink
Publikováno v:
BMC Public Health, Vol 18, Iss 1, Pp 1-14 (2018)
Abstract Background Comparability of 25-hydroxyvitamin D (25(OH)D) measurements is hampered by method-related differences in measurement values. International standardization of laboratory assays has been suggested to solve this problem. Methods As p
Externí odkaz:
https://doaj.org/article/07bfc153584f4575b3c37ff1f1028c6a
Autor:
Ramon A. Durazo-Arvizu, Reyna L. Pacheco-Dominguez, Christopher T. Sempos, Holly Kramer, Andrew N. Hoofnagle, Amber Pirzada, Richard S. Cooper, Martha L. Daviglus
Publikováno v:
Nutrients, Vol 11, Iss 8, p 1959 (2019)
Although the association of vitamin D levels with cardiovascular risk profiles among Hispanics/Latinos has been studied, little is known about this association among Hispanics/Latinos with chronic conditions. This pilot study determined serum vitamin
Externí odkaz:
https://doaj.org/article/8dd88b915be442488946761e912beac7
Autor:
Thor Aspelund, Martin R. Grübler, Albert V. Smith, Elias F. Gudmundsson, Martin Keppel, Mary Frances Cotch, Tamara B. Harris, Rolf Jorde, Guri Grimnes, Ragnar Joakimsen, Henrik Schirmer, Tom Wilsgaard, Ellisiv B. Mathiesen, Inger Njølstad, Maja-Lisa Løchen, Winfried März, Marcus E. Kleber, Andreas Tomaschitz, Diana Grove-Laugesen, Lars Rejnmark, Karin M. A. Swart, Ingeborg A. Brouwer, Paul Lips, Natasja M. van Schoor, Christopher T. Sempos, Ramón A. Durazo-Arvizu, Zuzana Škrabáková, Kirsten G. Dowling, Kevin D. Cashman, Mairead Kiely, Stefan Pilz, Vilmundur Gudnason, Gudny Eiriksdottir
Publikováno v:
Nutrients, Vol 11, Iss 1, p 74 (2019)
The aim of this study was to determine if increased mortality associated with low levels of serum 25-hydroxyvitamin D (25(OH)D) reflects a causal relationship by using a Mendelian randomisation (MR) approach with genetic variants in the vitamin D syn
Externí odkaz:
https://doaj.org/article/a9cc417263f84608bd1af1ccc1479f69
Publikováno v:
Nutrients, Vol 9, Iss 12, p 1308 (2017)
The science surrounding vitamin D presents both challenges and opportunities. Although many uncertainties are associated with the understandings concerning vitamin D, including its physiological function, the effects of excessive intake, and its role
Externí odkaz:
https://doaj.org/article/3600ba354dbe4b59a8292c01445ee906
Autor:
Regan L. Bailey, James L. Mills, Elizabeth A. Yetley, Jaime J. Gahche, Christine M. Pfeiffer, Johanna T. Dwyer, Kevin W. Dodd, Christopher T. Sempos, Joseph M. Betz, Mary Frances Picciano
Publikováno v:
Food & Nutrition Research, Vol 56, Iss 0, Pp 1-3 (2012)
Externí odkaz:
https://doaj.org/article/29ee2693796f40c29248a9a5f3ff6211
Autor:
Colette M. O’Neill, Andreas Kazantzidis, Mary J. Ryan, Niamh Barber, Christopher T. Sempos, Ramon A. Durazo-Arvizu, Rolf Jorde, Guri Grimnes, Gudny Eiriksdottir, Vilmundur Gudnason, Mary Frances Cotch, Mairead Kiely, Ann R. Webb, Kevin D. Cashman
Publikováno v:
Nutrients, Vol 8, Iss 9, p 533 (2016)
Low vitamin D status is common in Europe. The major source of vitamin D in humans is ultraviolet B (UVB)-induced dermal synthesis of cholecalciferol, whereas food sources are believed to play a lesser role. Our objectives were to assess UVB availabil
Externí odkaz:
https://doaj.org/article/e77d534a99fd463487070e5b7b92d7a1
Autor:
Philip R. Fischer, Christopher T. Sempos, John M. Pettifor, David R. Fraser, Craig F. Munns, Ramon A. Durazo-Arvizu, Tom D. Thacher
Publikováno v:
The American Journal of Clinical Nutrition. 117:998-1004
Autor:
Stephen A. Wise, Grace Hahm, Carolyn Q. Burdette, Susan S.-C. Tai, Johanna E. Camara, Christopher T. Sempos, Emma L. Williams
Publikováno v:
The Journal of Steroid Biochemistry and Molecular Biology. 231:106318
Autor:
Ravi Kaul, Robert L. Fitzgerald, Grace Hahm, Christine A. Simpson, Carole Tourneur, Sarah Meadows, Stephen A. Wise, Sohail Mushtaq, Graham D. Carter, Chung S Ho, Carolyn Q. Burdette, Jinyun Yuan, Christian Popp, Patrick J Twomey, Jan Schultess, Emma L Williams, Neil Parker, P.M. Crump, Christopher T. Sempos, David L. Duewer, Johanna E. Camara, Eugene Jansen, Fiona Ivison, J. Simard, Ramón A Durazo-Arvizu, Marcelo Cidade Batista, Michael H. Creer, Norma Breen, Etienne Cavalier, Emmett W K Law, Dilshad Ahmed Khan, Kimberly Robyak, Andrew N. Hoofnagle, Michael W. Clarke, Mark Kilbane, Camille Pease, Renaud Gonthier, Christian Beckert, Julia Jones, Ralf Fischer, Brett Holmquist, Lorna Cox, James Freeman, Federica Nalin, Adam J. Kuszak, Glen Van Slooten, Pierre Lukas, Joyce Merkel, Alfredo Villarreal, Jody M W van den Ouweland
Publikováno v:
Analytical and Bioanalytical Chemistry. 414:1015-1028
The Vitamin D External Quality Assessment Scheme (DEQAS) distributes human serum samples four times per year to over 1000 participants worldwide for the determination of total serum 25-hydroxyvitamin D [25(OH)D)]. These samples are stored at −40 °
Autor:
Lorna Cox, Adam J. Kuszak, Carolyn Q. Burdette, Norma Breen, Sarah Meadows, Fiona Ivison, Andrew N. Hoofnagle, Renaud Gonthier, Etienne Cavalier, Brett Holmquist, Emma L Williams, Christopher T. Sempos, Jean Nicolas Simard, Ramón A Durazo-Arvizu, Stephen A. Wise, Jody M W van den Ouweland, Johanna E. Camara, Federica Nalin, Robert L. Fitzgerald, Pierre Lukas, Joyce Merkel, Ralf Fischer, Kimberly Robyak, Chung S Ho, Emmett W K Law, Michael H. Creer, Michael W. Clarke, Grace Hahm
Publikováno v:
Analytical and Bioanalytical Chemistry. 414:333-349
An interlaboratory comparison study was conducted by the Vitamin D Standardization Program (VDSP) to assess the performance of liquid chromatography - tandem mass spectrometry (LC-MS/MS) assays used for the determination of serum total 25-hydroxyvita