Salivary gland damnification is one of the most common complication in head and neck cancer radiotherapy.Because of their unique anatomical positions,salivary glands usually receive high irradiation dose.Studies on radiation damage and dysfunction of salivary glands include injury mechanisms,relationship between dosimetrics and volumn changes and secretion,as well as prevention and treatment of damage.

Objective To compare and analyze the clinical effect and adverse reaction of oral azithromycin,oral and intravenous erythromycin on the treatment of mycoplasma infection in respiratory tract.Methods In our hospital in January 2015～March 2016 year,clinical datas of 110 cases with mycoplasma infection in respiratory tract in children were analyzed retrospectively.The total cases were randomly divided into the oral azithromycin treatment group(38 cases),oral erythromycin treatment group(36 cases)and erythromycin intravenous group(36 cases).The therapeutic effects and the adverse reactions were evaluated in the three groups.ResultsThe effective rate in the oral azithromycin group was significantly higher than that of the two other groups.The time of fever fading,rales and cough disappearance and the hospitalized day in the the oral azithromycin group were significantly shorter than that in the other two groups.Serum IL-8,TNF-alpha and hs-CRP level and the adverse reaction rate in the the oral azithromycin was significantly lower than that in the other two groups.The differences of all above the indexes were statistically significant(all P<0.05),the above index in the oral erythromycin group and erythromycin intravenous group was no statistical significance.Conclusion Compared with different medication route of erythromycin,it can get better results which oral azithromycin was used on the treatment of children with respiratory tract mycoplasma infection,the adverse reactions rate is lower,is a safe and effective treatment.

OBJECTIVE: The purpose of the study was to investigate the balance function of the patients with benign paroxysmal positional vertigo (BPPV) during standing. METHOD: In this study 41 patients with posterior semicircular canal BPPV (PC BPPV) and 11 patients with horizontal semicircular canal BPPV (HC BPPV) were recruited. Dynamic balance during standing was measured in Sensory Organization Test (SOT). Static balance during standing was measured in modified Clinical Test of Sensory Interaction and Balance (mCTSIB). Data of BPPV patients were compared to that from 44 normal controls. RESULT: Scores of the patients with PC BPPV were lower than that of the normal controls in the last three test conditions of SOT. Patients with PC BPPV demonstrated greater sway velocity in stance on foam with eyes open and eyes closed in mCTSIB. No postural deficit was observed in neither SOT nor mCTSIB when the patients with HC BPPV were compared to the normal controls. CONCLUSION Disorders of the horizontal semicircular canal do not influence postural control. Both dynamic and static posturography can detect the postural imbalance caused by posterior semicircular canal dysfunction.
Benign Paroxysmal Positional Vertigo ; physiopathology ; Case-Control Studies ; Humans ; Postural Balance ; Semicircular Canals ; physiopathology

Diagnosis, Differential ; Humans ; Meniere Disease ; diagnosis ; therapy ; Vertigo ; diagnosis ; therapy

Objective To analyze the clinical characteristics and follow-up data of catheter ablation of recurrent atrial tachycardias (ATs) after Mini-Maze surgery,and to explore prognostic factors for recurrence.Methods 59 patients in Guangdong General Hospital with ATs post Mini-Maze and concomitant open-heart surgery from April.2010 to June.2015 were included.According to high density precise mapping,activation mapping,voltage mapping and entrainment mapping,they underwent electrophysiological study and ablation which was guided by three-dimensional mapping system.All patients were followed up regularly.We explored the prognostic factors for recurrence by the Cox regression analysis.Results There were 88 types of ATs being mappedwith mean (1.49 ± 0.75) types of ATs identified per case.Most ATs were macro-reentry ATs(67/88,76.1％)and focal ATs (20/88,22.7％),respectively.56 patients (94.9％) achieved immediate ablation success.In a mean follow-up of (30.8 ± 17.7) months,recurrences were observed in 12 patients after the first time catheter ablation.Recurrent time was 3.5 (1.3,12.0) months and the overall ablation success rate was 74.6％ (44/59).6 patients received second ablation and the achievement of freedom from arrhythmias reached 79.7％ (47/59).Multivariate analysis showed that the LA diameter was the independent predictor for recurrence (HR 1.108,95％ CI 1.002 to 1.226,P =0.045).Conclusion Catheter ablation of ATs post Mini-Maze with concomitant surgery is save and feasible.LA diameter is the independent predictor for recurrence.

OBJECTIVE: The purpose of this article is to improve the understanding of complications of pleomorphic adenocarcinoma, and the possibility of complicated with dermatomyositis. In order to explore whether there is a certain relationship between the two diseases. METHOD: Reported one patient in our hospital with the diagnosis of pleomorphic adenocarcinoma complicated dermatomyositis, and clarified the diagnosis and treatment of these two diseases during hospitalization. Reviewed the latest clinical literature relevant to pleomorphic adenocarcinoma and dermatomyositis. RESULT: The patients underwent superficial parotidectomy treatment. The postoperation pathologic and immunohistochemical examination confirmed the diagnosis of pleomorphic adenocarcinoma. Dermatomyositis improved better after the operation. CONCLUSION Pleomorphic adenocarcinoma has the possibility of complicated with dermatomyositis which may misdiagnosis in clinical practice. Summarize the latest diagnosis progress of pleomorphic adenocarcinoma and the surgical treatment of the tumor. Also discuss the standards of clinical diagnosis and treatment of dermatomyositis. Analysis there may be a relationship between the two diseases on autoimmune mechanism.
Adenoma, Pleomorphic ; complications ; surgery ; Aged ; Dermatomyositis ; complications ; Humans ; Male

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A fundamental challenge that arises in biomedicine is the need to characterize compounds in a relevant cellular context in order to reveal potential on-target or off-target effects. Recently, the fast accumulation of gene transcriptional profiling data provides us an unprecedented opportunity to explore the protein targets of chemical compounds from the perspective of cell transcriptomics and RNA biology. Here, we propose a novel Siamese spectral-based graph convolutional network (SSGCN) model for inferring the protein targets of chemical compounds from gene transcriptional profiles. Although the gene signature of a compound perturbation only provides indirect clues of the interacting targets, and the biological networks under different experiment conditions further complicate the situation, the SSGCN model was successfully trained to learn from known compound-target pairs by uncovering the hidden correlations between compound perturbation profiles and gene knockdown profiles. On a benchmark set and a large time-split validation dataset, the model achieved higher target inference accuracy as compared to previous methods such as Connectivity Map. Further experimental validations of prediction results highlight the practical usefulness of SSGCN in either inferring the interacting targets of compound, or reversely, in finding novel inhibitors of a given target of interest.
Drug Delivery Systems ; Proteins ; Transcriptome