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Facial treatments with dermal fillers for medical or esthetic purposes occasionally give rise to adverse effects, ranging from temporary effects such as reddening of the skin, to long term effects such as hardening of tissue. There appears to be a relationship between the lifetime of the filler product and the risk for adverse effects. The lifetime of hyaluronic acid-based fillers is dependent on the presence and amount of crosslinking agents such as 1,4-butanediol diglycidyl ether (BDDE). It would therefore make sense to establish methodology to analyze the crosslinking grade of HA-based filler products on a routine basis. To this end, an analytical method was developed and validated to identify HA-BDDE-based fillers and to quantify their modification and crosslinking grade. The method was subsequently applied to products from the legal supply chain and the illegal market. It was found that the product Hyacorp H 1000, previously taken from the market, indeed contains a high modification grade and crosslinking grade, as was the assumed reason for the increased risk for adverse effects of this product. However, it was also shown that the Hyacorp products are highly unreliable in relation to their product composition in general. In this study, authentic products could not be distinguished from the illegal market products based on their modification and crosslinking grade.
This article was published in the following journal.
Name: Journal of pharmaceutical and biomedical analysis
In the present study, culture conditions of Streptococcus equi was optimized through Box-Behnken experimental design for hyaluronic acid production. About 0.87 gL of hyaluronic acid was produced und...
Small-particle hyaluronic acid filler is approved for lip augmentation and correction of perioral rhytides. Treatment with this product may improve facial aesthetics, projected first impression, and s...
QueryHyaluronic acid (HA) is a large polymer increasingly used as dermal filler. HA does not permeate through healthy skin and is administered using various injection techniques. As HA procedures beco...
Among several skin fillers developed in recent decades, hyaluronic acid (HA) fillers have become the material of choice. They are safe, long-lasting, not immunogenic, and cost effective, and they can ...
Skin necrosis is a rare but severe potential complication after injection of hyaluronic acid (HA). Based on the understanding of the causes and mechanisms of this complication, many precautions have b...
This study evaluates the injection of a hyaluronic acid dermal filler with lidocaine 0.3% in the treatment of nasolabial folds (NLF). Each patient will receive 1 concentration in a NLF (20...
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The purpose of this study is to determine whether or not Recombinant DNA-based hyaluronidase (RDNAH/Hylenex recombinant), is safe and effective for dissolving hyaluronic acid (HA) dermal f...
This study will determine if HA dermal filler late occurring (> 4 weeks and
This study is a single-blind intra-individual comparative study to evaluate the short and medium term tissue response after the injection of 2 brands of hyaluronic acid gels (HA), designed...
A natural high-viscosity mucopolysaccharide with alternating beta (1-3) glucuronide and beta (1-4) glucosaminidic bonds. It is found in the UMBILICAL CORD, in VITREOUS BODY and in SYNOVIAL FLUID. A high urinary level is found in PROGERIA.
Materials such as COLLAGEN or HYALURONIC ACID that are injected or deposited into the DERMIS for the purpose of skin augmentation.
Mucoid states characterized by the elevated deposition and accumulation of mucin (mucopolysaccharides) in dermal tissue. The fibroblasts are responsible for the production of acid mucopolysaccharides (GLYCOSAMINOGLYCANS) in the ground substance of the connective tissue system. When fibroblasts produce abnormally large quantities of mucopolysaccharides as hyaluronic acid, chondroitin sulfate, or heparin, they accumulate in large amounts in the dermis.
A group of high molecular weight chondroitin sulfate proteoglycans that form aggregates with HYALURONIC ACID.
A tumor of both low- and high-grade malignancy. The low-grade grow slowly, appear in any age group, and are readily cured by excision. The high-grade behave aggressively, widely infiltrate the salivary gland and produce lymph node and distant metastases. Mucoepidermoid carcinomas account for about 21% of the malignant tumors of the parotid gland and 10% of the sublingual gland. They are the most common malignant tumor of the parotid. (From DeVita Jr et al., Cancer: Principles & Practice of Oncology, 3d ed, p575; Holland et al., Cancer Medicine, 3d ed, p1240)
Anything that breaks the skin is a wound because when the skin is broken, there's a risk of germs getting into the body and causing an infection. Follow and track Wound Care News on BioPortfolio: Wound Car...