Preventing and therapeutic effect of propolis in radiotherapy induced mucositis of head and neck cancers: a triple-blind, randomized, placebo-controlled trial

Background: Mucositis is one of the acute complications of radiotherapy which can ulcerate oral mucosa and cause severe pain and discomfort which can affect oral normal function. Propolis is a natural source of flavenoid which has antiulcer, antibacterial, antifungal, healing and anti-inflammatory effects. Using such an affordable compound without any bad smell or taste that has reasonable price can help the radiotherapy undergoing patients

Objectives: Our goal is assessing the preventing and therapeutic effect of propolis in radiotherapy induced mucositis in patients with head and neck cancer

Patients and Methods: In a randomized triple blind clinical trial, 20 patient were selected randomly to swish and swallow 15 ml of water based extract of propolis mouth wash 3 times a day in the case group [n = 10] and 15 ml placebo mouth wash in control group [n = 10]. We use NIC-CTC scale for determining mucositis grading

Results: We use T-test, Man-Whitney, Chi-square, and Friedman as analyzing tests. Case group had significantly [P < 0.05] lower grade of mucositis in all of the follow-ups, but xerostomia is not significantly different in two groups [P > 0.05]

Conclusions: This is a pilot study which shows water based extract of propolis efficiently prevents and heals radiotherapy induced mucositis

concentration of serum zinc in celiac patients compared to healthy subjects in Tehran

This study evaluated serum levels of zinc in patient with CD compare to healthy subjects. Celiac disease [CD] is characterized by small intestinal malabsorption of nutrients as a consequence of ingestion of wheat gluten. Zinc is an essential trace element that it has vital biological functions. Sera of 30 celiac cases and 30 healthy normal cohorts as control group were obtained. Atomic absorption spectrophotometer was employed for estimating serum zinc level. Zinc concentrations in patients diagnosed with CD were significantly lower than healthy subjects [75.97 +/- 12 compared with 92.83 +/- 18, P-value < 0.0001]. The result of this study shows that serum zinc concentration is decreased in celiac patients compare to healthy controls. Serum zinc may thus be a marker of CD in adults presenting with gastrointestinal symptoms

Potential application of protease isolated from Pseudomonas aeruginosa PD100

A protease isolated from Pseudomonas aeruginosa PD100 could act in the presence of SDS and Tween 80. This protease could be useful for degradation of protein in the presence of solvent, dehairing of cow skin and degradation of natural proteins. The immobilized protease showed 15-20% increases in temperature stability and the entrapped enzyme retained 83% of its initial activity after six cycles. With respect to properties of the enzyme and its capability for degradation of different protein sources, this protease finds potential application for waste treatment, used in detergents and leather industry.