lubricate

Hyaluronic acid sodium (MW 200-1560) is a biopolymer composed of repeating disaccharide units, with a molecular weight of 200-1560. Hyaluronic acid sodium is a major component of the extracellular matrix (ECM). It is synthesized on the plasma membrane. Hyaluronic acid sodium exerts its effects by binding to receptors CD44 and RHAMM. Hyaluronic acid sodium activates PI3K-Akt signaling. Hyaluronic acid sodium also enhances cell invasion and angiogenesis by promoting or stimulating the binding of proteolytic MMP-9 to the cell surface. Elevated hyaluronic acid levels are associated with tumor cell growth, adhesion, migration, invasion, and angiogenesis in digestive system cancers. Hyaluronic acid sodium is involved in tissue remodeling and rapid cell proliferation in several physiological processes, including embryonic morphogenesis and wound healing. Hyaluronic acid sodium can be used as a regulator of cancer-associated lymphangiogenesis. Hyaluronic acid sodium can be used as a drug delivery carrier for sodium butyrate, enhancing its anti-proliferative activity against breast cancer cell lines. Hyaluronic acid sodium can lubricate the corneal endothelium. Hyaluronic acid sodium can improve tissue hydration and enhance the resistance of cells to mechanical damage. Hyaluronic acid sodium has been conjugated with antibodies to ensure that the active compound continues to exert its effects at the site of inflammation. Hyaluronic acid sodium can be used in research in the fields of osteoarthritis, ophthalmology, cosmetic dermatology, oncology, and liver diseases .

Liquid Paraffin is a petroleum-derived mixture of saturated hydrocarbons and an orally active fecal lubricant. Liquid Paraffin is widely used in studies of constipation and fecal incontinence in children through its lubricating effect and the osmotic effect generated by its conversion to hydroxy fatty acids. Liquid Paraffin has high safety, is non-carcinogenic, and does not affect fat-soluble vitamin levels with long-term use. Liquid Paraffin does not cause abdominal pain or electrolyte disorders, but may lead to lipoid pneumonia and granulomas caused by rectal administration. Liquid Paraffin can also be used as a phase change material for thermal energy storage, or combined with nanoparticles to form a protective boundary film to reduce mechanical wear .

Polyoxypropylene stearyl ether can be used as an excipient, such as surfactant, softener, lubricating, wetting, plasticizing, solubilizing and dispersing properties. Pharmaceutical excipients, or pharmaceutical auxiliaries, refer to other chemical substances used in the pharmaceutical process other than pharmaceutical ingredients. Pharmaceutical excipients generally refer to inactive ingredients in pharmaceutical preparations, which can improve the stability, solubility and processability of pharmaceutical preparations. Pharmaceutical excipients also affect the absorption, distribution, metabolism, and elimination (ADME) processes of co-administered drugs .

Dimethicone is an orally active biochemical assay reagents consisting of a fully methylated linear siloxane polymer whose ends are blocked by trimethylsiloxane units. Dimethicone can lubricate hair and physically block the respiratory system of lice to remove lice. Dimethicone has potential applications in cosmetics and daily cleaning products .

Oleyl palmitamide is a fatty acid amide and slip additive. Oleyl palmitamide exerts a lubricating effect to prevent film blocking and reduce static charges in food packaging plastics .