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ObjectiveTo explore the therapeutic effect of Huangliansan on atopic dermatitis （AD） model mice induced by 2， 4-dinitrochlorobenzene （DNCB）. MethodA total of 42 male BALB/c mice were randomly divided into normal group， model group， hydrocortisone group， low， medium， and high-dose groups （0.3， 0.6， 1.2 g·kg-1） of Huangliansan oil， and water extract group （0.6 g·kg-1） of Huangliansan. In addition to the normal group， DNCB was applied on the back of mice in other groups to establish the AD model. On the 15th day after DNCB stimulation， each group was given the corresponding drug or solvent， and the changes in skin lesions， dermatitis score， and frequency of scratching were observed and recorded. Hematoxylin-eosin （HE） staining was used to observe the histopathological changes in the skin and spleen. Real-time fluorescent quantitative polymerase chain reaction （Real-time PCR） was used to detect mRNA levels of filaggrin （FLG）， lorophane （LOR）， and involucrin （IVL） in skin， as well as immunoglobulin E （lgE）， interleukin-4 （IL-4）， interleukin-6 （IL-6）， interleukin-1β （IL-1β）， tumor necrosis factor-α （TNF-α）， and interferon-γ （IFN-γ） in spleen. ResultCompared with the normal group， the model group showed symptoms of skin swelling and scab， and the score of dermatitis， the frequency of scratching， and the spleen index were increased （P<0.05）. The expression levels of FLG， LOR， and IVL in skin tissue were significantly decreased （P<0.01）， and the mRNA expressions of IgE， IL-4， IL-6， IL-1β， and TNF-α in the spleen were significantly increased， while the expression level of IFN-γ was significantly decreased （P<0.01）. Compared with the model group， the symptoms of skin erythema， scaly， and scab of mice in each drug group were alleviated to varying degrees， and the score of dermatitis， the frequency of scratching， and the spleen index were decreased （P<0.05， P<0.01）. In addition， the expression levels of FLG， LOR， and IVL in the skin of mice in the drug group were increased （P<0.05， P<0.01）， and the mRNA expression of IgE， IL-4， IL-6， IL-1β， and TNF-α in spleen were decreased. IFN-γ was increased （P<0.05， P<0.01）， and the lesions of the skin and spleen were improved to varying degrees. The medium-dose group of Huangliansan oil and hydrocortisone group had the most obvious manifestations （P<0.05， P<0.01）. The indexes in the medium-dose group of Huangliansan oil were better than those in the water extract group of Huangliansan. ConclusionHuangliansan may improve the expression level of skin barrier protein， inhibit the expression of helper T cell 2 （Th2）-related inflammatory factors， increase the expression of helper T cell 1 （Th1） inflammatory factors， restore the skin barrier function and Th1/Th2 balance in the spleen， regulate the inflammatory response in the spleen of AD mice， and thus relieve AD. Huangliansan oil is more effective than water extract.
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OBJECTIVE： To investigate the effects of Lindera aggregate of stir-baking with vinegar-Aucklandia lappa on gastric emptying and gastrointestinal hormones in functional dyspepsia liver depression and qi stagnation （FDLDQS） model rats. METHODS： Totally 60 SD rats were randomly divided into blank group （n＝10） and modeling group （n＝50）； FDLDQS model was induced by chronic stress restraint or food deprivation or excessive fatigue in modeling group. After modeling， model rats were randomly divided into model group （normal saline）， L. aggregate of stir-baking with vinegar group （1.62 g/kg， calculated by crude drug）， A. lappa group （1.62 g/kg， calculated by crude drug）， L. aggregate of stir-baking with vinegar-A. lappa group （1 ∶ 1， m/m，1.62 g/kg， calculated by crude drug） and mosapride group （positive control， 1.35 mg/kg）， with 10 rats in each group. Administration groups were given relevant medicine intragastrically once a day； blank group and model group were given constant volume of normal saline intragastrically， for consecutive 14 d. 2 h after last medication， gastric emptying rate and small intestinal propulsion rate of rats in each group were measured by phenol red content method. After HE staining， the morphological changes of antrum tissue were observed under microscope. The contents of motilin （MTL）， gastrin （GAS） and cholecystokinin （CCK） in serum were determined by ELISA method. RESULTS： Compared with blank group， gastric emptying rate and small intestinal propulsion rate of rats were decreased significantly in model group （P＜0.01）； the serum contents of MTL and GAS were decreased significantly （P＜0.01）， while the content of CCK was increased significantly （P＜0.01）. No organic damage was found in all model groups. Compared with model group， L. aggregate stir-baking with vinegar group and A. lappa group， gastric emptying rate and small intestinal propulsion rate of rats were increased significantly in L. aggregate of stir-baking with vinegar-A. lappa group and mosapride group （P＜0.05 or P＜0.01）； serum contents of MTL and GAS were increased significantly （P＜0.01）， while the content of CCK was decreased significantly （P＜0.01）. CONCLUSIONS： L. aggregate of stir-baking with vinegar-A. lappa can accelerate gastric emptying and small intestinal propulsion rate of FDLDQS rats， increase serum contents of MTL and GAS but decrease the content of CCK； its effects are better than that of them alone.
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Objective To investigate the effects of numerous re-planning strategies on the anatomic and dosimetric outcomes of target volume and organs at risk (OARs) in patients with head and neck cancer receiving fractionated radiotherapy.Methods From 2015 to 2016,28 patients with head and neck cancer were enrolled in this study with Shandong Cancer Hospital,consisting of 19 patients with nasopharyngeal carcinoma, 4 patients with laryngocarcinoma, and 5 patients with carcinoma of the maxillary sinus.All of them received conventionally fractionated radiotherapy.Each patient had six weekly cone-beam CT (CBCT) scans, which were performed on the first day of every week, to obtain reference images.A virtual CT image was generated by registration of planning CT and each weekly CBCT image.The four re-planning strategies were used for the reconstruction of re-planned dose, while the initial planning was used as a reference.The weekly doses calculated using virtual CT were summed together to obtain the actual dose.The actual and initial planned doses were evaluated.The nonparametric Friedman test was used to evaluate the differences between multiple groups, and the differences between any two groups were analyzed by paired t test.Results The sizes of planning target volume, clinical target volume, and left/right parotid glands (PGs) changed significantly within the six weeks (P=0.041, 0.046, 0.024, and 0.017, respectively).For these four re-planning strategies, there were significant differences between the actual dose and the initial planned dose to the PGs (all P<0.05), with average values decreased by 5.02%, 11.17%, 12.08%, and 13.19%, respectively, compared with that in the reference strategy.Conclusions Re-planning during treatment course could ensure the sparing of OARs and allow for sufficient dose to the target volume.The higher the number of re-planning strategies, the more the actual dose is close to the initial planed dose;the efficiency of two re-planning strategies is the highest.