curcumin and Oral-Ulcer

Electrospinning provides a simple and convenient method to fabricate nanofibrous meshes. However, the nanofiber productivity is often limited to the laboratory scale, which cannot satisfy the requirements of practical application. In this study, we developed a novel needleless electrospinning spinneret based on a double-ring slit to fabricate drug-loaded nanofibrous meshes. In contrast to the conventional single-needle electrospinning spinneret, our needless spinneret can significantly improve nanofiber productivity due to the simultaneous formation of multiple jets during electrospinning. Curcumin-loaded poly(l-lactic acid) (PLLA) nanofiber meshes with various concentrations and on the large scale were manufactured by employing our developed needleless spinneret-based electrospinning device. We systematically investigated the drug release behaviors, antioxidant properties, anti-inflammatory attributes, and cytotoxicity of the curcumin-loaded PLLA nanofibrous meshes. Furthermore, a bilayer nanofibrous composite mesh was successfully generated by electrospinning curcumin-loaded PLLA solution and diclofenac sodium loaded poly(ethylene oxide) solution in a predetermined time sequence, which revealed potent antibacterial properties. Subsequently, novel mucoadhesive patches were assembled by combining the bilayer composite nanofibrous meshes with (hydroxypropyl)methyl cellulose based mucoadhesive film. The multilayered mucoadhesive patch has excellent adhesion properties on the porcine buccal mucosa. Overall, our double-ring slit spinneret can provide a novel method to rapidly produce large-scale drug-loaded nanofibrous meshes to fabricate mucoadhesive patches. The multiple-layered mucoadhesive patches enable the incorporation of multiple drugs with different targets of action, such as analgesic, anti-inflammatory, and antimicrobial compounds, for mouth ulcer or other oral disease treatments.

Topics: Adhesives; Animals; Curcumin; Humans; Hypromellose Derivatives; Mouth Mucosa; Nanofibers; Oral Ulcer; Swine

The purpose of this study was to investigate oral ulcer healing and anti-Candida efficacy of an alcohol-free 0.1% chitosan-curcumin mouthwash.. A buccal mucosal ulcer was induced in hamster by topical application of acetic acid. The test mouthwash was applied to the ulcer twice a day for 7 consecutive days beginning on the fourth day after the ulcer induction. The anti-Candida efficacy of the mouthwash was determined against both free floating and biofilm forms of Candida albicans.. The mouthwash significantly decreased the ulcer severity with a better ulcer healing efficacy than that of a standard benzydamine mouthwash. The mouthwash also exerted a comparable anti-Candida efficacy to a standard chlorhexidine mouthwash.. An alcohol-free 0.1% chitosan-curcumin mouthwash may serve as a safe and potential topical alternative agent in the management of oral inflammatory ulcer and of candidiasis.

Topics: Animals; Biofilms; Candida; Candida albicans; Chitosan; Chlorhexidine; Cricetinae; Curcumin; Female; Male; Mouthwashes; Oral Ulcer; Wound Healing

Oral ulcers are very common and can compromise the quality of life of patients with pain. The objective of this study was to evaluate mucosal healing with curcumin in an animal oral ulcer model.. Experimental study.. Twenty New Zealand white rabbits were used. Round filter paper 6 mm in diameter was soaked with 15 μl 50% acetic acid and applied over the upper labial gingiva, creating a uniform circular ulcer. After creation of an oral ulcer, curcumin, the active substance in tumeric, was applied twice over the ulcer in the experimental group but not in the control group. The ulcer area was calculated by maximal (D) and minimal (d) diameter : π × D × d/4. All animals were weighed, and the area was measured on days 0, 7, and 14. On days 7 and 14, half of the animals were sacrificed and gingival specimens were acquired.. Curcumin treatment exhibited accelerated healing such that the gross appearance of the ulcer demonstrated a recognizable difference in wound healing between the curcumin-treated and control groups with time. Weight loss was observed after the creation of oral ulcer in the control group. However, the curcumin-treated group gained weight with time, resulting in a significant weight difference. On day 14, epithelial regeneration was completed in the treated group but incomplete in the control group.. Topical application of curcumin enhanced the wound-healing process of oral ulcer in the animal model, which implicate that curcumin can be used as an effective and safe medical tool in the treatment of oral ulcer.. NA.

Topics: Administration, Topical; Animals; Anti-Inflammatory Agents, Non-Steroidal; Curcumin; Disease Models, Animal; Mouth Mucosa; Oral Ulcer; Rabbits; Wound Healing

A new non-toxic drug (compound A) consisting of curcumin, alpha-tocopherol and sunflower oil was developed and its efficacy tested in the treatment of radiation-induced oral mucositis in the rat.. Mature (12 weeks old, 200-225 g) female Sprague-Dawley rats were used. While under general anaesthesia, the tongues of the animals were slightly extended outside and a region of the underside of the tongue was irradiated in-situ with single doses of 2.27 MeV beta-rays from a 5-mm diameter 90Sr/90Y plaque. The dose-rate of the source was about 10 Gy min(-1) at the surface of the mucus membrane. Irradiations and subsequent assessment of the lesion were carried out under general anaesthesia maintained by a 1.5% halothane/oxygen mixture. Six groups of animals were irradiated with single doses of 13.5, 15.0, 16.5 or 18Gy. One subgroup (radiation only) received no further treatment, while the other five groups received 0.5 ml day(-1) of either compound A, sunflower oil, alpha-tocopherol, curcumin or water containing 10% ethanol by oral gavage until the end of experiments. Mucosal ulceration (erosion of mucosal epithelium) was considered as an end-point. From the day after irradiation until any acute radiation-induced oral mucosal lesion had healed, the tongues of the animals were assessed daily for the presence of radiation-induced mucositis (mucosal ulceration). Quantal data for the incidence of radiation-induced mucositis were analysed using logit analysis and a dose-modification factor was obtained.. There was a modest increase in ED50, the dose expected to cause mucositis in 50% of the animals after both alpha-tocopherol and sunflower oil were administered. This resulted in dose-modification factors of 1.05. While curcumin treatment resulted in a dose-modification factor of 1.09. Compound A significantly reduced the incidence of radiation-induced mucositis with a statistically significant dose-modification factor of 1.2 +/- 0.1.. Curcumin and other components of compound A appeared to be effective in the prevention of radiation-induced oral mucositis. However, the overall effect observed with the combination drug (compound A) appeared greater than additive.

Topics: alpha-Tocopherol; Animals; Curcumin; Dose-Response Relationship, Drug; Dose-Response Relationship, Radiation; Ethanol; Female; Mouth Mucosa; Oral Ulcer; Plant Oils; Rats; Rats, Sprague-Dawley; Sunflower Oil; Tongue; Ulcer