biological variability

biological variability

The natural variability in a lab parameter due to physiologic differences among subjects and within the same subject over time.

Types of Biological Variability
• Interindividual—Differences between subjects due to differences in diet, genetics or immune status.
• Intra-individual—Differences in the same subject over time due to diurnal cycles and other rhythms, biological repair mechanisms, dietary variables, ageing, etc.

biological variability

Lab medicine The variability in a lab parameter due to physiologic differences among subjects–interindividual BV, and in the same subject over time–intraindividual BV
References in periodicals archive ?
Model Averaging Time and Addressing Biological Variability in the Coupled Models
As we await results of randomized clinical trials that will provide insight into whether vitamin D is causally associated with health benefits (13), it is important to understand the biological variability of vitamin D biomarkers.
I was especially interested in assisting to start a glider program at KAUST, in which researchers use autonomous underwater robots to understand the physical and biological variability of the Red Sea, he said.
On the basis of our 16-year-long experience in research on rat placentas, we underline sampling as one of the most important concepts in stereology, especially in the light of biological variability [1].
Additionally, for the first time, Olay entered into a collaboration with 23andMe, a leading personal genetics company, to further understand the genes linked to skin aging and their biological variability across different ethnicities.
However, the link between physical and biological variability within the gyre occurs at several spatial and temporal scales that are not yet fully understood.
When interpreting these data it must be taken into account that besides exercise-induced effects, the changes in performance may be induced by the biological variability of the applied parameters (1).
This introduction to the field of human biology deals with the extent of human biological variability, the mechanisms that create and pattern this variability, and the relationship between human biological variability and health, disease, and contemporary social issues.
People often assume that our ability to recognize individuals is simply a consequence of natural biological variability in detectable physical traits found in any population of individuals in any species," said Michael Beecher, a professor of psychology and biology at the University of Washington.
To minimise the impact of environmental factors as a source of biological variability, one skeletal mature group (n = 24) from one dairy farm was studied over a period of three hours.
Hannon and coworkers [23] (1998) concluded that uCTX-I have a high biological variability than serum TRAP-5b and also suggested that a marker with a much decrease is not necessarily the best marker to find out the therapeutic response.
Virus-like particles will be one solution to tackle the biological variability of influenza pandemics," said journal editor Professor Alois Jungbauer.