View clinical trials related to Oral Cancer.
Filter by:The aim of this study is to evaluate the association between several methylated genes and oral cancers. A prospective case control trial is designed with sample size estimated at least 160 cases. It is expected to enroll at least 100 subjects with precancerous lesion or oral cancer, and ~60 subjects with normal oral mucosa. This study is approved by the National Taiwan University Hospital Research Ethics Committee. After signing the informed consent, all of the subjects will receive an intraoral examination and the oral epithelial cells will be collected. If abnormal oral lesion is observed, it will be photographed, and the biopsy will be performed to confirm the diagnosis. For methylated gene detections, the gDNA will be extracted from the collected cells and standardized assay will be performed. Clinical sensitivity and specificity for these methylated genes will be evaluated.
Study on the carcinogenesis of Gα12 in oral cancer, and chemopreventive possibility for the treatment of oral cancer using Ga12 inhibitor.
Study on the Carcinogenesis of SOX-9 in Oral Cancer, and Chemopreventive Possibility for the Treatment of Oral Cancer Using SOX-9 Inhibitor.
Background: - Normal bacteria and other tiny organisms (the microbiota) live in the mouth and nose. They contribute to human health in many ways, including digesting food and balancing hormones. Testing samples from the mouth can show how microbiotas are related to health and disease. However, the microbiota in a person's mouth differs depending on the methods of collection and the part of the mouth that is tested. Understanding what can change the microbiota (including mouth sites, and what a person eats or smokes) will give more information on how to study oral microbiota and smoking-related cancers and other diseases. Objectives: - To see how smoking affects the microbiotas in mouth and nose. - To determine which collection method for mouth specimens should be used for studying microbiota. Eligibility: - Individuals at least 18 years of age who have been using tobacco products regularly for at least 5 years. - Individuals at least 18 years of age who have never smoked. Design: - Participants will be screened with a physical exam and medical history. - Participants will have a dental exam. They will provide a saliva sample. The dentist will take swabs from the inside of the mouth, including the tongue, tonsils, gums, and teeth. The inside of the nose will also be swabbed. - Participants will also fill out a questionnaire. It will ask about their history of smoking and consumption of alcohol, tea, and coffee. It will also ask about current medications, including antibiotics.
The primary objective of this study is to improve the diagnostic accuracy and specificity of MRI in detecting the degree of bone involvement and invasion in oral cancer. The presence and degree of bone invasion determines the extent of surgery and has great effect on the morbidity of patients with oral cancer and bone/soft tissue tumors. MRI scanning in 3 Tesla (3T) and 4Tesla (4T) MR magnet will be performed on up to 10 patients with possible maxillofacial and/or mandibular bone invasion. We will then compare the conventional imaging results of the patients with 3T and 4T MRI results and post operative pathology results.
The aim of this clinical trial is to examine the effects of phenethyl isothiocyanate (PEITC), a compound derived from cruciferous vegetables, on oral cells with mutant p53. The p53 protein's normal (wild-type) function within cells is to act as a tumor suppressor, or anti-cancer protein. When mutated, the p53 protein not only no longer executes the functions of a tumor suppressor, and it can gain functions as a pro-cancer protein.22 The proposed clinical trial will utilize oral cells collected from subjects who are heavy smokers. Since the subjects are regularly exposed to mutagenic chemicals it is the thought that their oral cells will contain measurable levels of mutant p53. The participants will consume watercress juice, which is rich in PEITC (See Figure 1). Previous studies in the laboratory showed PEITC selectively depletes mutant p53, and not wild type p53, in cell culture. Our hypothesis is that the ITC in the watercress juice will lead to the depletion of mutant p53 within the oral cells. This depletion could lead to a possible clinical application of this compound, such as chemopreventives or oncologic treatments of individuals with oral cancers.
The trial will compare exercises using Therabite® versus wooden spatulas to prevent or relieve trismus in patients with stage 3 and 4 oral/oropharyngeal cancer.
In this study the investigators are conducting research to determine whether a new optical device using polarization reflectance spectroscopy can help doctors or dentists identify abnormalities in the mouth that require follow-up. To establish this, measurements are needed from a large number of individuals with different abnormalities in their mouth. The investigators believe the proposed approach has potential to improve and enable mass screening for precancerous and early cancers of the oral cavity by improving the predictive value of oral cavity exams, particularly for less experienced practitioners. The information from this study will be compared to results from the pathology report of the tissue taken from your mouth. Hypothesis: 1. Polarized reflectance spectroscopy can distinguish high-risk oral lesion from normal and reactive oral lesions. 2. Polarized reflectance spectroscopy can capture low-grade oral lesions that have characteristics associated with a high risk of progression to cancer.
This research may help dentists or surgeons to better detect areas in the mouth that are either prone to cancer or are early cancers. The earlier the detection on cancer in the mouth, the better the chance that treatment or prevention can be more effective.
In areas of the world where populations are undernourished poor oral health is prevalent. Diets rich in fruit and vegetables are thought to have many health benefits including reducing the risk of oral cancer or gum disease. In particular fruits such as strawberries contain many different compounds which may be responsible for these proposed health benefits. From this study, the researchers hope to gain information about how the tissues in the mouth absorb strawberry gummies in a population of habitually smoking and never smoking men and women. The researchers will measure inflammation hormones in your saliva and urine and the genes in your mouth and blood. Two different strawberry gummies will be tested in this study. The strawberry gummies were developed at OSU in the Department of Food Science and Technology. One type of strawberry gummy will contain freeze-dried whole strawberries while the other type will have no fruit. In total the eight pieces of strawberry gummies that you will consume in one day will be at most equal to 1 cup of whole strawberries. The research team believes the two strawberry gummies may be digested and absorbed differently and that components in the strawberry gummies may be helpful for oral health.