Abstract: Methods are provided for synthesizing mixtures of lipids that are representative of the structural diversity of the lipids present in samples of interest. The complex mixtures of lipids produced according to the methods of the present disclosure can be used as internal standards for detecting and quantifying the lipids in samples of interest. Kits including the internal standards and instructions for their use in the detection and quantification of lipids in samples of interest are also provided.

Abstract: Known lipid molecules of a matrix are grouped into lipid classes and the lipid classes are further grouped into a pass-through group and a mobility separation group based on isobaric interferences. A separation system separates known lipid molecules from a matrix sample and an ion source ionizes the matrix sample. Two injections are performed. For the first injection a DMS device is put into passive mode, and for the second injection the DMS device is used to resolve isobaric interferences. A tandem mass spectrometer performs MRM scans of the pass-through group for the first injection and MRM scans of the mobility separation group for the second injection. A processor quantitates each lipid molecule in the matrix sample by comparing the MRM intensity values obtained for the first and second injections to MRM intensity and concentration values for known standards of the known lipid molecules of the matrix.

Abstract: Known lipid molecules of a matrix are grouped into lipid classes and the lipid classes are further grouped into a pass-through group and a mobility separation group based on isobaric interferences. A separation system separates known lipid molecules from a matrix sample and an ion source ionizes the matrix sample. Two injections are performed. For the first injection a DMS device is put into passive mode, and for the second injection the DMS device is used to resolve isobaric interferences. A tandem mass spectrometer performs MRM scans of the pass-through group for the first injection and MRM scans of the mobility separation group for the second injection. A processor quantitates each lipid molecule in the matrix sample by comparing the MRM intensity values obtained for the first and second injections to MRM intensity and concentration values for known standards of the known lipid molecules of the matrix.

Abstract: Methods are provided for synthesizing mixtures of lipids that are representative of the structural diversity of the lipids present in samples of interest. The complex mixtures of lipids produced according to the methods of the present disclosure can be used as internal standards for detecting and quantifying the lipids in samples of interest. Kits including the internal standards and instructions for their use in the detection and quantification of lipids in samples of interest are also provided.

Abstract: The present invention provides metabolic markers and targets, especially PEMT activity and metabolic markers and components associated therewith useful for diagnosing and treating various disease conditions.

Abstract: The present invention provides methods of using certain metabolite markers for predicting weight development or its related conditions of a subject. The present invention also provides compositions and kits useful for detecting metabolite markers of the present invention.

Abstract: The present invention provides methods for assessing contribution of one or more pathways to the biosynthesis of a metabolite, e.g., a lipid using the levels of the product made and the metabolite precursors for each pathway.

Abstract: Many automotive enthusiasts wish to reduce the range of motion (throw) required to shift gears in their vehicles. The present invention, uses a Class 3 Leverage action, optionally folded in articulation and co-acting with a sculptured Fulcrum Rod, to provide a compact, bolt-on, short-throw, shifter linkage that retrofits completely within a vehicle shifter housing's space constraints without deleteriously altering the vehicle. Such shifter housing space constraints have previously militated against many attempts to retrofit aftermarket short-throw shifter means into existing vehicles.

Abstract: Described herein in various embodiments are methods for using quantitative and/or comparative lipid metabolite data, particularly for identifying and interpreting individual metabolomic profiles as indicative of metabolic status. The provided methods, for instance, allow analysis of the likelihood or progression of weight gain or weight loss, growth or wasting, obesity, diabetes, and aging in an individual based on measurements of the measurement of the quantity of one or more lipid biomarkers, profiles of such markers, or ratios of such markers.