density

Low-density lipoprotein (human) is one of the five main lipoproteins responsible for transporting cholesterol to various tissues such as the adrenal glands, gonads, muscle, and adipose tissue.

Oxidized low density lipoprotein (mouse) is a modified form of low-density lipoprotein (LDL). It induces atherosclerosis (AS) by promoting endothelial dysfunction and accelerating the growth and migration of vascular smooth muscle cells (VSMCs).

Oxidized low density lipoprotein (Human) (Human ox-LDL) plays a crucial role in atherogenesis and contributes to endothelial dysfunction through the cytoplasmic adapter protein TRAF3IP2. This compound also promotes endothelial cell activation, leads to increased production of adhesion molecules, and reduces eNOS activity and NO production. Additionally, Human ox-LDL activates the NLRP3 inflammasome in macrophages.

High density lipoprotein (HDL) (human) is a functional lipoprotein capable of binding to receptors such as scavenger receptor B1 (SR-B1), ABCA1, and ABCG1. It facilitates the removal of excess cholesterol from peripheral tissues through reverse cholesterol transport (RCT), transferring it to the liver for metabolism. Additionally, it activates endothelial nitric oxide synthase (eNOS) to produce nitric oxide (NO), offering antioxidant, anti-inflammatory, and vascular endothelial protection. High density lipoprotein (human) is a potential candidate for cardiovascular disease research, including atherosclerosis.

Sucrose-epichlorohydrin copolymer (Polysucrose 400) is a high molecular weight polymer of sucrose co-polymerized with epichlorohydrin for density gradient separation of cells, cell membranes, organelles, and viral cells and protein liqudi-liquid phase separation (LLPS).

Hyodeoxycholic acid sodium salt, a natural secondary bile acid, enhances high-density lipoprotein function, reduces farnesoid X receptor antagonist bile acids, and induces potent cytotoxicity, apoptosis, and IL-8 synthesis.

Pinolenic acid is a polyunsaturated fatty acid found in Korean pine (Pinus orientalis) and maritime pine (Pinus pinaster) seed oils, which exhibit lipid-lowering properties. In transgenic mice expressing human ApoA1, a diet containing maritime pine seed oil (MPSO) reduced high-density lipoprotein and ApoA1 levels and diminished cholesterol efflux in vitro. Korean pine seed oil supplements may aid in reducing obesity by decreasing appetite, as evidenced by increased levels of satiety hormones CCK and GLP-1 and reduced desire to eat. Pinolenic acid, which is not metabolically converted to arachidonic acid, can lower arachidonic acid levels in the phosphatidylinositol fraction of HepG2 cells from 15.9% to 7.0%. The neutral, more lipophilic form of pinolenic acid is pinolenic acid ethyl ester.

Azelaoyl PAF is a potent PPARγ agonist that competitively binds thiazolidinediones with potency comparable to rosiglitazone. In atherosclerosis studies, Azelaoyl PAF promotes the uptake of oxidized low-density lipoprotein (oxLDL) by macrophages by upregulating CD36 expression. In fibroblasts from Friedreich's ataxia (FRDA) patients, Azelaoyl PAF significantly increased mRNA and protein levels of ferritin.

Palmitoleic acid is a common constituent of the triglycerides of human adipose tissue. Palmitoleic acid-based diets raise low-density lipoprotein cholesterol and diminish high-density lipoprotein cholesterol, even when dietary intake of cholesterol is maintained at a low level. Palmitelaidic acid is the trans isomer of the 16:1 fatty acid palmitoleic acid. While its effects on cholesterol levels are poorly studied, palmitelaidic acid can have very different effects from those of palmitoleic acid on lipid metabolism and mobilization. Palmitelaidic acid methyl ester is an ester version of the free acid which may be more amenable for the formulation of fatty acid-containing diets and dietary supplements.

N-butyryl-L-Homocysteine thio-lactone, an analog of N-butyryl-L-homoserine lactone, is a small diffusible signaling molecule involved in quorum sensing for controlling gene expression and cellular metabolism. It induces violacein expression in C. violaceum mutants usually not able to produce acylhomoserine lactone (AHL), regulating genes like LuxIR family transcriptional regulators.

C18-HSL is one of four lipophilic, long acyl side-chain-bearing N-acylated homoserine lactones (AHLs) produced by the LuxI AHL synthase homolog SinI, involved in quorum sensing signaling in S. meliloti, a nitrogen-fixing bacterial symbiont of the legume [M. sativa]. C18-HSL and other hydrophobic AHLs tend to localize in relatively lipophilic cellular environments and cannot diffuse freely through the cell membrane. These long-chain N-acylhomoserine lactones may be exported from cells by efflux pumps or transported between communicating cells via extracellular outer membrane vesicles. Quorum sensing, a regulatory system used by bacteria to control gene expression in response to cell density, manifests in phenotypes such as biofilm formation and virulence factor production. Coordinated gene expression is achieved through the production, release, and detection of small diffusible signal molecules called autoinducers, including AHLs, which vary in acyl group length (C4-C18), C3 substitution (hydrogen, hydroxyl, or oxo group), and the presence or absence of carbon-carbon double bonds, conferring signal specificity through LuxR family transcriptional regulators. Regulation of bacterial quorum sensing signaling to inhibit pathogenesis represents a novel approach to antimicrobial therapy in treating infectious diseases.

Quorum sensing is a regulatory system used by bacteria for controlling gene expression in response to increasing cell density. This regulatory process manifests itself with a variety of phenotypes including biofilm formation and virulence factor production. Coordinated gene expression is achieved by the production, release, and detection of small diffusible signal molecules called autoinducers. The N-acylated homoserine lactones (AHLs) comprise one such class of autoinducers, each of which generally consists of a fatty acid coupled with homoserine lactone (HSL). Regulation of bacterial quorum sensing signaling systems to inhibit pathogenesis represents a new approach to antimicrobial therapy in the treatment of infectious diseases. AHLs vary in acyl group length (C4-C18), in the substitution of C3 (hydrogen, hydroxyl, or oxo group), and in the presence or absence of one or more carbon-carbon double bonds in the fatty acid chain. These differences confer signal specificity through the affinity of transcriptional regulators of the LuxR family. N-tridecanoyl-L-Homoserine lactone (C13-HSL) possesses a rare odd-numbered acyl carbon chain and is produced by wild-type and mutant strains of Y. pseudotuberculosis in trace amounts.

N-acylated homoserine lactones (AHLs) are a class of autoinducers used in bacterial quorum sensing to control gene expression in response to cell density. These molecules, comprising a fatty acid coupled with homoserine lactone (HSL), vary in acyl group length (C4-C18), C3 substitution (hydrogen, hydroxyl, or oxo group), and the presence of carbon-carbon double bonds, determining signal specificity through LuxR family transcriptional regulators. C11-HSL, with its rare odd-numbered acyl carbon chain, may act as a minor quorum-sensing signaling molecule in P. aeruginosa strains. Regulating bacterial quorum sensing can inhibit pathogenesis and represents a novel antimicrobial therapy approach for infectious diseases.

Cholesterol-PEG2000-Biotin is a biotinylated and PEGylated form of cholesterol. It serves as a lipid anchor and can increase the density of phycocyanin-conjugated streptavidin on mesenchymal stem cell surfaces.

Palmitelaidic Acid methyl ester (Standard) is the standard substance of Palmitelaidic Acid methyl ester, and it is applicable for quantitative analysis, quality control, and related research in biochemical experiments. Palmitoleic acid is a common constituent of the triglycerides of human adipose tissue. Palmitoleic acid-based diets raise low-density lipoprotein cholesterol and diminish high-density lipoprotein cholesterol, even when dietary intake of cholesterol is maintained at a low level. Palmitelaidic acid is the trans isomer of the 16:1 fatty acid palmitoleic acid. While its effects on cholesterol levels are poorly studied, palmitelaidic acid can have very different effects from those of palmitoleic acid on lipid metabolism and mobilization. Palmitelaidic acid methyl ester is an ester version of the free acid which may be more amenable for the formulation of fatty acid-containing diets and dietary supplements.

N-Acyl homoserine lactones (AHLs) are a class of autoinducers used by bacteria in quorum sensing, a regulatory system controlling gene expression in response to increased cell density. This regulation leads to diverse phenotypes, such as biofilm formation and production of virulence factors. Coordinated gene expression is achieved through the generation, release, and detection of small diffusible signal molecules called autoinducers. AHLs typically consist of fatty acids linked to homoserine lactone (HSL). Modulating bacterial quorum sensing signal systems to suppress pathogenesis offers a novel antimicrobial approach in studying infectious diseases. AHLs vary in acyl chain length (C4-C18), C3 substitution (hydrogen, hydroxyl, or oxo groups), and the presence or absence of carbon-carbon double bonds, providing signal specificity via LuxR family transcription factors. C9-HSL, characterized by an unusual odd-numbered acyl carbon chain, is produced by the wild-type Erwinia carotovora subsp. carotovora strain SCC 3193 grown in nutrient-rich Luria-Bertani broth (LB).