A concentration of a substance is the quantity of solute present in a given quantity of solution. Concentrations are usually expressed in terms of molarity, defined as the number of moles of solute in 1 L of solution.
Example: We investigated lipid concentration levels in the gray matter of the dorsolateral prefrontal cortex (PFC) in 396 cognitively healthy humans with ages spanning 100 years of the human lifespan.
Yu, Qianhui, Zhisong He, Dmitry Zubkov, Shuyun Huang, Ilia Kurochkin, Xiaode Yang, Tobias Halene et al. "Lipidome alterations in human prefrontal cortex during development, aging, and cognitive disorders." Molecular psychiatry 25, no. 11 (2020): 2952-2969.
Extraction
noun
the process of removing something, especially by force
Example: Lipids extraction and LC–MS methods were the same as plasma lipids, which were described above. Liu, Yue, Anbupalam Thalamuthu, Karen A. Mather, John Crawford, Marina Ulanova, Matthew Wai Kin Wong, Russell Pickford, Perminder S. Sachdev, and Nady Braidy. "Plasma lipidome is dysregulated in Alzheimer’s disease and is associated with disease risk genes." Translational psychiatry 11, no. 1 (2021): 1-18.
Participant
noun
a person who takes part in something.
Example: Participants were a subsample from the population based longitudinal Sydney Memory and Ageing Study(Sydney MAS).
Liu, Yue, Anbupalam Thalamuthu, Karen A. Mather, John Crawford, Marina Ulanova, Matthew Wai Kin Wong, Russell Pickford, Perminder S. Sachdev, and Nady Braidy. "Plasma lipidome is dysregulated in Alzheimer’s disease and is associated with disease risk genes." Translational psychiatry 11, no. 1 (2021): 1-18.
Risk
Noun
Example: Finally, associations between AD case-control status and genetic risk factors for AD were nominally significant when examining lipid profiles.
Liu, Yue, Anbupalam Thalamuthu, Karen A. Mather, John Crawford, Marina Ulanova, Matthew Wai Kin Wong, Russell Pickford, Perminder S. Sachdev, and Nady Braidy. "Plasma lipidome is dysregulated in Alzheimer’s disease and is associated with disease risk genes." Translational psychiatry 11, no. 1 (2021): 1-18.
sample
Noun
A sample is a smaller set of data that a researcher chooses or selects from a larger population using a pre-defined selection method.
Example: Samples from cognitively unaffected human controls were collected from the NICHD Brain and Tissue Bank for Developmental Disorders and the Maryland Psychiatric Research Center at the University of Maryland, the Maryland Brain Collection Center, the Netherlands Brain Bank,and the Chinese Brain Bank Center.
Yu, Qianhui, Zhisong He, Dmitry Zubkov, Shuyun Huang, Ilia Kurochkin, Xiaode Yang, Tobias Halene et al. "Lipidome alterations in human prefrontal cortex during development, aging, and cognitive disorders." Molecular psychiatry 25, no. 11 (2020): 2952-2969.