Lack of Association Between the Trp719Arg Polymorphism in Kinesin-Like Protein-6 and Coronary Artery Disease in 19 Case-Control Studies

Objectives: We sought to replicate the association between the kinesin-like protein 6 (KIF6) Trp719Arg polymorphism (rs20455), and clinical coronary artery disease (CAD).
Background: Recent prospective studies suggest that carriers of the 719Arg allele in KIF6 are at increased risk of clinical CAD compared with noncarriers.
Methods: The KIF6 Trp719Arg polymorphism (rs20455) was genotyped in 19 case-control studies of nonfatal CAD either as part of a genome-wide association study or in a formal attempt to replicate the initial positive reports.
Results: A total of 17,000 cases and 39,369 controls of European descent as well as a modest number of South Asians, African Americans, Hispanics, East Asians, and admixed cases and controls were successfully genotyped. None of the 19 studies demonstrated an increased risk of CAD in carriers of the 719Arg allele compared with noncarriers. Regression analyses and fixed-effects meta-analyses ruled out with high degree of confidence an increase of <2% in the risk of CAD among European 719Arg carriers. We also observed no increase in the risk of CAD among 719Arg carriers in the subset of Europeans with early-onset disease (younger than 50 years of age for men and younger than 60 years of age for women) compared with similarly aged controls as well as all non-European subgroups.
Conclusions: The KIF6 Trp719Arg polymorphism was not associated with the risk of clinical CAD in this large replication study.

Investigation of the effect of simulated lens yellowing, transparency loss and refractive error on in vivo resonance Raman spectroscopy

To separately investigate the impact of simulated age-related lens yellowing, transparency loss and refractive error on measurements of macular pigment (MP) using resonance Raman spectroscopy.

Family caregiver views on patient-centred care at the end of life

Aim: The purpose of this study was to evaluate the patient-centredness of community palliative care from the perspective of family members who were responsible for the care of a terminally ill family member. Method: A survey questionnaire was mailed to families of a deceased family member who had been designated as palliative and had received formal home care services in the central west region of the Province of Ontario, Canada. Respondents reported on service use in the last four weeks of life; the Client-Centred Care Questionnaire (CCCQ) was used to evaluate the extent to which care was patient-centred. The accessibility instrument was used to assess respondent perception of access to care. Descriptive and inferential statistics were used for data analyses. Results: Of the 243 potential participants, 111 (46.0%) family caregivers completed the survey questionnaire. On average, respondents reported that they used five different services during the last four weeks of the care recipient's life. When asked about programme accessibility, care was also perceived as largely accessible and responsive to patients' changing needs (M=4.3 (SD=1.04)]. Most respondents also reported that they knew what service provider to contact if they experienced any problems concerning the care of their family member. However, this service provider was not consistent among respondents. Most respondents were relatively positive about the patient-centred care they received. There were however considerable differences between some items on the CCCQ. Respondents tended to provide more negative ratings concerning practical arrangement and the organization of care: who was coming, how often and when. They also rated more negatively the observation that service providers were quick to say something was possible when it was not the case. Bivariate analyses found no significant differences in CCCQ or accessibility domain scores by caregiver age, care recipient age, income, education and caregiver sex. Conclusions: Patient-centred care represents a service attribute that should be recognized as an important outcome to assess the quality of service delivery. This study demonstrates how this attribute can be evaluated in the provision of care. © 2011 The Authors. Scandinavian Journal of Caring Sciences © 2011 Nordic College of Caring Science.

Collaborative practice:a strategy to improve the relevance of health services research.

Health services research has emerged as a tool for decision makers to make services more effective and efficient. While its value as a basis for decision making is well established, the incorporation of such evidence into decision making remains inconsistent. To this end, strengthening collaborative relationships between researchers and healthcare decision makers has been identified as a significant strategy for putting research evidence into practice.