_____________________________________________________________________________________________________ *Corresponding author: Email: sbahijri@gmail.com; British Journal of Medicine & Medical Research 6(4): 404-414, 2015, Article no.BJMMR.2015.215 ISSN: 2231-0614 SCIENCEDOMAIN international www.sciencedomain.org Carboxylated Osteocalcin and Adiponectin Correlate with Glycated Hemoglobin and 25(OH) Vitamin D Levels in Saudi Females with Type 2 Diabetes Mellitus Following Ingestion of Vitamin D Supplements Suhad M. Bahijri 1,2* , Safaa Qusti 3 , Fatemah Khormi 3 , Khalid Al-Shali 2,4 , Hanan Jambi 2,5 and Enayat Hashem 1,2 1 Department of Clinical Biochemistry, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia. 2 Saudi Diabetes Study Research Group, King Fahd Medical Research Center, King Abdulaziz University, Jeddah, Saudi Arabia. 3 Biochemistry Department, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia. 4 Department of Internal Medicine, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia. 5 Department of Nutrition, Faculty of Home Economics, King Abdulaziz University, Jeddah, Saudi Arabia. Authors’ contributions This work was carried out in collaboration between all authors. Author SMB designed the study, wrote the protocol, and wrote the first draft of the manuscript. Author SQ choose analytical methods and supervised all practical aspects of the study, author FK collected samples, performed all biochemical estimations, statistical analysis and presentation of results, author KAS provided clinical insight in research design, and was responsible for recruitment of correctly diagnosed subjects providing needed medical history, author HJ managed the literature searches and organizing references, author EH reviewed the manuscript critically, submitted it and helped in formulating final version. All authors read and approved the final manuscript. Article Information DOI: 10.9734/BJMMR/2015/14374 Editor(s): (1) Kate S Collison, Department of Cell Biology, King Faisal Specialist Hospital & Research Centre, Saudi Arabia. (2) Chan Shen, Department of Biostatistics, MD Anderson Cancer Center, University of Texas, USA. Reviewers: (1) Anonymous, Saudi Arabia. (2) Anonymous, Egypt. (3) Anonymous, Slovakia. (4) Anonymous, Mexico. Complete Peer review History: http://www.sciencedomain.org/review-history.php?iid=723&id=12&aid=7486 Received 28 th September 2014 Accepted 1 st December 2014 Published 26 th December 2014 Original Research Article