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Objective@# To investigate the clinical characteristics of salivary gland tumors and their pathological types.@*Methods@#Data from 2 456 patients with salivary gland tumors diagnosed between January 1973 and December 2018 at Sun Yat-sen Memorial Hospital of Sun Yat-sen University were collected, and their gender, age and tumor pathological type, location, and benign and malignant composition ratios were retrospectively analyzed.@*Results@#Over the 46-year study period, 2 456 patients with salivary gland tumors were treated; 41.9% were female, and 58.1% were male. The peak incidence was found among the 40 to 60 years of age group, in which 593 (24.1%) patients had malignant tumors and 1 863 (75.9%) had benign tumors. The ratio of benign and malignant tumors was 3.1∶1. The top two most common benign tumors were pleomorphic adenoma (58.7%) and Warthin tumors (33.6%). The top two most common malignant tumors were mucoepidermoid carcinoma (27.7%) and adenoid cystic carcinoma (26.1%). The most common sites of benign pleomorphic adenomas were the parotid glands, palate, and submandibular glands. Mucinous epidermoid carcinomas in malignant tumors were common in the parotid glands and small salivary glands. The incidence of salivary gland tumors in this group has increased each year, and this group accounted for 53.3% of the total cases over the past 10 years.@*Conclusion@#The number of patients with salivary gland tumors is increasing each year. The total incidence of salivary gland tumors is higher in men than in women. Large salivary gland tumors are mainly benign tumors, and small salivary gland tumors are more common. Polymorphic adenomas, Warthin tumors, and mucoepidermoid carcinomas are the most common tumor types; patients 40~60 years old are most likely to have benign salivary glands and have a high incidence of malignant tumors.
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Objective To investigate the therapeutic effect of mycophenolate mofetil (MMF) on rats with experimental autoimmune encephalomyelitis (EAE).Methods The guinea pig spinal cord homogenate (GPSCH) and complete Freund's adjuvant were used as the antigen to induce the acute EAE model in Wistar rats which were verified according to clinical scoring.Totally 36 rats were randomly and equally divided into 3 groups,that is,normal control,EAE group and MMF treatment group.In 10 d after immunization,normal saline or MMF (30 mg?kg-1?d-1) were given intragastrically for 7 d to the corresponding groups.The rats were sacrificed on the 16th day and 30th day after immunization for pathological changes of the brain and spinal cord.Clinical manifestation was scored during the experiment.Results Compared with the EAE model group,MMF-treated rats had lower clinical scores and shorter disease process.Besides,the inflammatory infiltration,demyelination and axonal damage in the central nervous system were significantly improved in MMF treatment group.Conclusion MMF is an effective drug in treating EAE,and can relieve the clinical signs and ameliorate pathological lesions in the central nervous system of acute EAE rats.
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Objective To study the immunoregulatory mechanism of Langchuangjing Granule(LG)in different dosages in lupus mice.Methods Three -month female NZB /NZWF1mice were treated with LG in three differen t dosages for six weeks and then the effect of LG on t he expression of CD4 + ,CD8 + and CD54in peripheral blood was obse rved.Re-sults LG in different dosages showed a tend ency of increasing the content of CD4 + and CD8 + ,decreased the serum con-tent of CD54and inhibited the hyper -expressions of CD54on the surface of lymphocyte and monocyte in plasma.T he above effects were stronger in middl e -and high -dosage of LG.Conclusion LG can improve the immune function an d restrain the excessive immunoreaction of lupus mice.