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Warfarin is a commonly used anti-coagulant, but has a narrow therapeutic index and wide inter-individual and inter-ethnic variation in dose requirements. Several genetic and non-genetic factors have been identified that could influence warfarin dose requirements. However, current known predictive factors could only explain about 50-60% of warfarin dose variability. Inter-ethnic differences in genetic influences on warfarin dose requirements also exist. We hypothesize that genetic factors other than CYP2C9 and VKORC1 may influence warfarin dosing and serve to further optimize warfarin dosing.
Observational Model: Cohort, Time Perspective: Cross-Sectional
National University Hospital
Not yet recruiting
National University Hospital, Singapore
Published on BioPortfolio: 2014-08-27T03:16:34-0400
The primary objective of this study is to obtain de-identified, clinically characterized, whole blood specimens for use in assessing new biomarkers for the detection of neoplasms of the lu...
This is a sample study that will collect biological samples (blood, tumor tissue, ascites, and/or other fluids) from gynecological cancer patients for biomarker research. In addition, the ...
The primary objective of this sub-study, 2018-10B, is to collect blood specimens to assess new biomarkers for the detection of Colorectal Cancer (CRC).
This pilot research trial utilizes the collection of blood in studying metabolites in patients with prostate cancer. Metabolites are the small molecule products of cellular metabolism that...
This pilot research trial studies the collection of blood samples in monitoring tumor specific mutations in patients with non-small cell lung cancer that has spread to other places in the ...
Effective point-of-care testing (POCT) is reliant on optimal specimen collection, quality assured testing, and expedited return of results. Many of the POCT are designed to be used with fingerstick ca...
Deviation in blood collection procedures is a central source of preanalytical variation affecting overall analytical and diagnostic precision. The procedure of venous blood collection for ionized calc...
Blood is a biological fluid that contains multiple blood fraction and cellular components. High-quality blood specimens are essential prerequisites for various downstream applications such as molecula...
Blood loss due to phlebotomy leads to hospital-acquired anemia and more frequent blood transfusions that may be associated with increased risk of morbidity and mortality in critically ill patients. Mu...
Self-collection of samples for human papillomavirus (HPV) testing (self-collection) has the potential to increase cervical cancer screening among underscreened women. We assessed attitudes toward at-h...
Development of a library collection, including the determination and coordination of selection policy, assessment of needs of users and potential users, collection use studies, collection evaluation, identification of collection needs, selection of materials, planning for resource sharing, collection maintenance and weeding, and budgeting.
The taking of a blood sample to determine its character as a whole, to identify levels of its component cells, chemicals, gases, or other constituents, to perform pathological examination, etc.
A collection of blood outside the BLOOD VESSELS. Hematoma can be localized in an organ, space, or tissue.
Collection of air and blood in the pleural cavity.
Not an aneurysm but a well-defined collection of blood and CONNECTIVE TISSUE outside the wall of a blood vessel or the heart. It is the containment of a ruptured blood vessel or heart, such as sealing a rupture of the left ventricle. False aneurysm is formed by organized THROMBUS and HEMATOMA in surrounding tissue.
Head and neck cancers
Cancer can occur in any of the tissues or organs in the head and neck. There are over 30 different places that cancer can develop in the head and neck area. Mouth cancers (oral cancers) - Mouth cancer can develop on the lip, the tongue, the floor...