Isotope-Labeled Lipids

Palmitic acid-¹³C₁₆ is the ¹³C-labeled Palmitic acid. Palmitic acid is a long-chain saturated fatty acid commonly found in both animals and plants. PA can induce the expression of glucose-regulated protein 78 (GRP78) and CCAAT/enhancer binding protein homologous protein (CHOP) in in mouse granulosa cells.

Cholesterol-d₇ is the deuterium labeled Cholesterol. Cholesterol is the major sterol in mammals. It is making up 20-25% of structural component of the plasma membrane. Plasma membranes are highly permeable to water but relatively impermeable to ions and protons. Cholesterol plays an important role in determining the fluidity and permeability characteristics of the membrane as well as the function of both the transporters and signaling proteins. Cholesterol is also an endogenous estrogen-related receptor α (ERRα) agonist.

Oleic acid-¹³C₁₈ is the ¹³C labeled Oleic acid (HY-N1446). Oleic acid (9-cis-Octadecenoic acid) is an abundant monounsaturated fatty acid. Oleic acid is a Na+/K+ ATPase activator.

Cholic acid-d₄ is the deuterium labeled Cholic acid. Cholic acid is a major primary bile acid produced in the liver and usually conjugated with glycine or taurine. It facilitates fat absorption and cholesterol excretion.

γ-Aminobutyric acid-d₆ is the deuterium labeled γ-Aminobutyric acid. γ-Aminobutyric acid (4-Aminobutyric acid) is a major inhibitory neurotransmitter in the adult mammalian brain, binding to the ionotropic GABA receptors (GABAA receptors) and metabotropic receptors (GABAB receptors).

1-Oleoyl-2-hydroxy-sn-glycero-3-phosphoethanolamine-d₃₁ is the deuterium labeled 1-Oleoyl-2-hydroxy-sn-glycero-3-phosphoethanolamine (HY-W355700). 1-oleoyl-sn-glycero-3-phosphoethanolamine (LysoPE 18:1) is a lysophosphatidylethanolamine molecule involved in phospholipid metabolism, targeting cell membrane receptors (such as G protein-coupled receptors) to regulate cell signaling pathways. 1-oleoyl-sn-glycero-3-phosphoethanolamine may activate mitogen-activated protein kinase (MAPK) signaling, promote cell migration, regulate inflammatory responses and lipid metabolism, and has both pro-inflammatory and anti-inflammatory activities. 1-oleoyl-sn-glycero-3-phosphoethanolamine is mainly used in the screening of biomarkers for metabolic diseases (such as non-alcoholic fatty liver disease and obesity), as well as the study of the mechanism of lysophospholipids in cell membrane homeostasis and signal transduction.

Spironolactone-d₆-1 is the deuterium labeled Spironolactone (HY-B0561). Spironolactone is an aldosterone antagonist that acts on the aldosterone mineralocorticoid receptor (IC₅₀=24 nM) and androgen receptor (IC₅₀=77 nM), promotes podocyte autophagy and regulates pain. Spironolactone improves hypertension-related vascular hypertrophy and remodeling by reducing angiotensin II (Ang II)-induced inflammation, reduces aldosterone-induced vascular and soft tissue calcification through PIT1-dependent signaling, and alleviates vascular dysfunction in type II diabetic mice by reducing oxidative stress and restoring NO/GC signaling; at low concentrations, it and its metabolites can interfere with aldosterone biosynthesis in the adrenal cortex and inhibit voltage-dependent Ca²⁺ channels to exert antihypertensive effects.

Taurochenodeoxycholic acid-d4 (TCDCA-d4) is the deuterium labeled Taurochenodeoxycholic acid. Taurochenodeoxycholic acid (12-Deoxycholyltaurine) is one of the main bioactive substances of animals' bile acid. Taurochenodeoxycholic acid induces apoptosis and shows obvious anti-inflammatory and immune regulation properties.

Chenodeoxycholic Acid-d₄ is the deuterium labeled Chenodeoxycholic Acid. Chenodeoxycholic Acid is a hydrophobic primary bile acid that activates nuclear receptors (FXR) involved in cholesterol metabolism.

Palmitic acid-d₃₁ is the deuterium labeled Palmitic acid. Palmitic acid is a long-chain saturated fatty acid commonly found in both animals and plants. PA can induce the expression of glucose-regulated protein 78 (GRP78) and CCAAT/enhancer binding protein homologous protein (CHOP) in in mouse granulosa cells.

Succinic acid-¹³C₄ is the ¹³C labeled Succinic acid. Succinic acid is a potent and orally active anxiolytic agent. Succinic acid is an intermediate product of the tricarboxylic acid cycle. Succinic acid can be used as a precursor of many industrially important chemicals in food, chemical and pharmaceutical industries.

Linoleic acid-¹³C₁₈ is the ¹³C labeled Linoleic acid. Linoleic acid is a common polyunsaturated (PUFA) found in plant-based oils, nuts and seeds. Linoleic acid is a part of membrane phospholipids, and functions as a structural component to maintain a certain level of membrane fluidity of the transdermal water barrier of the epidermis. Linoleic acid induces red blood cells and hemoglobin damage via oxidative mechanism .

Succinic-2,2,3,3-d₄ acid is the deuterium labeled Succinic acid. Succinic acid is an intermediate product of the tricarboxylic acid cycle, as well as one of fermentation products of anaerobic metabolism.

Deoxycholic acid-d₄ is the deuterium labeled Deoxycholic acid. Deoxycholic acid is specifically responsible for activating the G protein-coupled bile acid receptor TGR5 that stimulates brown adipose tissue (BAT) thermogenic activity.

Prostaglandin E2-d₄ is the deuterium labeled Prostaglandin E2. Prostaglandin E2 (PGE2) is a hormone-like substance that participate in a wide range of body functions such as the contraction and relaxation of smooth muscle, the dilation and constriction of blood vessels, control of blood pressure, and modulation of inflammation.

Myristic acid-d₂₇ is the deuterium labeled Myristic acid. Myristic acid is a saturated 14-carbon fatty acid occurring in most animal and vegetable fats, particularly butterfat and coconut, palm, and nutmeg oils.

Vitamin D3-d₆ (Cholecalciferol-d₆ ) is the deuterium labeled Vitamin D3 (HY-15398) . Vitamin D3 (Cholecalciferol; Colecalciferol) is a naturally occuring form of vitamin D. Vitamin D3 induces cell differentiation and prevents proliferation of cancer cells.

Arachidonic acid-d₈ is the deuterium labeled Arachidonic acid. Arachidonic acid is an essential fatty acid and a major constituent of biomembranes.

Palmitic acid-¹³C is the ¹³C-labeled Palmitic acid (HY-N0830). Palmitic acid is a long-chain saturated fatty acid commonly found in both animals and plants. Palmitic acid can induce the expression of glucose-regulated protein 78 (GRP78) and CCAAT/enhancer binding protein homologous protein (CHOP) in in mouse granulosa cells.

3-Hydroxybutyric acid-d₄ (sodium) is the deuterium labeled 3-Hydroxybutyric acid. 3-Hydroxybutyric acid (β-Hydroxybutyric acid) is a metabolite that is elevated in type I diabetes. 3-Hydroxybutyric acid can modulate the properties of membrane lipids.