AIM To investigate the effects of Tea Po lyp henols on induction of apoptosis in human liver cancer cell etc. Telomerase acti vity of BEL-7404 cells was dramatically declined during the cell incuba tion with Tea Polyphenols. METHODS MTT colorimetric assay and trypan b lue exclusion method were used to examine the growth inhibition ofTea Polyphenols on BEL-7404 cells. Telomerase activity in cell was determined by PCR-ELISA method. Cell morphology and DNA gel electrophoresis were used to observe the apoptosis. RESULTS The solution of Tea Polyphenols showed dose-dependent and time-dependent inh ibitory effects on the proliferation on BEL-7404 cell line. After treatment wit h 0 2 and 0 1 g?L -1 tea polyphenols for 48 hours, cells displayed DNA ladder bands and typical morphological change of apoptosis included: ce ll shrinkage, membrane blebbing, chromatin condensation, nuclear fragmentation etc. Telomerase activit y of BEL-7404 cells was dramatically declined during the cell incubation with Tea Polyphenols. CONCLUSION Tea Polyphenols has growth inhibiti ng effect and may induce apoptosis in BEL-7404 in a certain dose range. The ant icancer mechanism of Tea Polyphenols might be related to the inhibition of telom erase activity.

Chondrosarcoma is extremely rare in maxillofacial soft tissue. A case diagnosed as well-differentiated chon- drosarcoma in the left parotid region was reported. The clinic pathological features, diagnosis, treatment, and prognosis were discussed with the literature review.
Bone Neoplasms ; Chondrosarcoma ; Humans ; Parotid Neoplasms ; Parotid Region

Ossifying fibromyxoid tumor is an uncommon neoplasm with uncertain histogenesis. This tumor is usually characterized by a small, painless mass in the subcutaneous tissue or limb muscles. In this case, an ossifying fibromyxoid tumor of the mandible was reported, and relevant literature was reviewed.
Fibroma ; Fibroma, Ossifying ; Humans ; Mandible

Tongue osteocartilaginous choristoma is the disease that there are well-developed bone and cartilage in the tongue. This article reported a case of tongue osteocartilaginous choristoma in the oral-cavity,which is rare.
Cartilage ; Choristoma ; Humans ; Tongue Diseases

Objective To discuss the clinical features of behavioral and psychological symptoms of demen-tia(BPSD)and the relation between different sub-clinical syndromes and cognition. Methods One hundred and sixteen dementia patients were assessed with neuropsychiatric inventory and mini-mental state examination (MMSE)and made factor analysis according to DSM-IV-R. Results Twelve common behavioral and psychological symptoms could be further divided into five sub-syndromes,including disinhibition behavior,psychosis,agitation, emotion and apathy factors. MMSE total score and years of education entered regression equation of apathy factor (P<0.05). Conclusion BPSD can be divided into five factors and apathy factor are related with cognitive function.

Objective To identify the differences inneuropsychological characteristics between amnestic(AMCI)and vascular mild cognitive impairment(VMCI).Methods Totally 297 old community residents with mild cognitive impairment(MCI)were divided into amnestic MCI(AMCI)and vascular MCI(VMCI)subgroup from Guangzhou MCI prevalence survey.The elderly with MCI were interviewed and tested with the Chinese version of Montreal Cognitive Assessment(MoCA),the Mini-Mental state examination(MMSE),Auditory Verbal Learning Test(AVLT),the Clinical Dementia Rating scale(CDR),Functional Activity Questionnaire(FAQ),the Modified Hachinski Ischemic Scale(M-HIS),Center for Epidemiologic Studies(CES-DC)to evaluate neuropsychological characteristics.Results AMCI versus VMCI group showed that the total scores of MoCA were(9.63±5.17 vs.9.98±6.02),total scores of MMSE were(16.90±4.84 vs.16.90±6.19),AVLT immediate memory was(2.35±1.39 vs.2.91±1.84),AVLT delayed recall was(2.23±2.09 vs.2.47±2.20),AVLT delayed recognition was(7.33±3.98 vs.6.85±4.02)and total scores of CDR(0.5 vs.0.5),with no differences between the 2 groups(all P>0.05).Based on MoCA survey,AMCI versus VMCI group showed statistically significant differences(all P<0.05)in parameters of visual space and execution(0.71±1.02 vs.0.92±1.26),language function(0.34±0.56 vs.0.50±0.80)and abstract thinking(0.25±0.49 vs.0.15±0.43),but based on MMSE survey,no difference was found in the various cognitive domains between the two groups.The AMCI versus VMCI group showed statistically significant differences(all P<0.05)in parameters of CES-DC scale(1.75±4.27 vs.2.76±6.72),FAQ scale(4.42±4.66 vs.8.71±7.03),M-HIS scale(0.40±0.64 vs.7.59±3.53).Conclusions There is no significant difference in general cognitive impairment between AMCI and VMCI,but the visual space and execution,language function are more impaired in AMCI than VMCI,and the abstract thinking,social function are more impaired with more depressive symptoms in VMCI than in AMCI.

Objective:To analyze the psychological contract satisfaction of contracted residents and its impact on their behavioral intentions under the guidance of incomplete contract theory, for reference in improving the effectiveness of contracted family doctor services.Methods:1 100 contracted residents from nine townships/streets in Shandong province were selected as subjects according to stratified random sampling from September 2019 to June 2020, and a questionnaire survey on the level of satisfaction of contracted residents′ psychological contracts(24 items) and assessment of behavior intentions(9 items) was conducted, and the model of the effect of contracted residents′ psychological contracts on behavior intentions was established and analyzed. The correlation was validated by Pearson test and the structural equation method was used for verifying the model.Results:998 valid questionnaires were recovered. The psychological contract satisfaction score of the contracted residents was 3.45±0.56 and the behavioral intention was 2.81±0.29. Both transactional and relational psychological contracts were correlated with all dimensions of behavioral intention( P<0.01). Concerning the impacts of residents′ psychological contracts on behavioral intentions, the effect coefficients of transactional psychological contracts on loyalty intention, voice intention, exit intention and neglect intention were 0.33, 0.24, -0.25 and -0.49 respectively, with an indirect effect on neglect intention; the effect coefficients of relational psychological contracts on loyalty intention, voice intention, exit intention and neglect intention were 0.26, 0.10, -0.14 and -0.50 respectively, with an indirect effect on advice intention and neglect intention. Conclusions:Residents′ psychological contract has yet not been effectively satisfied. Satisfying and improving the residents′ psychological contract can directly enhance their loyalty intention and reduce their exit intention, indirectly influencing the voice and neglect intentions. In order to enhance the effectiveness of family doctor contracted services and improve the healthcare experience of contracted residents, it is suggested that the relevant departments should actively take the following measures, including carrying out a survey on the psychological contract of contracted residents, building a provincial-city-county-township collaborative linkage platform, and so on.

Objective To study the clinical value of electronic bronchoscope in diagnosis and treatment of recurrent dyspnea in neonates.Method From October 2014 to October 2017,the clinical data of recurrent dyspnea receiving electronic bronchoscopy examination and treatment in the neonatal intensive care unit of our hospital were retrospectively selected.Their clinical characteristics and treatment effects were summarized and analyzed.Result A total of 171 infants of neonatal recurrent respiratory infections were examined using electronic bronchoscope.The top four causes included endo－tracheo－bronchitis in 78 cases (45.6%), laryngomalacia, and tracheobronchomalacia in 22 cases (12.9%), airway stenosis in 14 cases (8.2%) and esophagotracheal fistula in 12 cases ( 7.0%).The complications of intraoperative and postoperative included decline of percutaneous oxygen saturation and /or heart rate (20.5%, 35/171), mucosal bleeding (12.3%, 21/171 ), and fever after bronchoalveolar lavage.Electronic bronchoscopy examination confirmed all the 171 neonates′diagnosis and some of them recovered after corresponding treatment.78 cases of infants with endo－tracheobronchitis were all cured.22 cases of laryngomalacia and tracheobronchomalacia and nine patients with airway stenosis improved and were discharged after treatment . One patient with subglottic stenosis received bronchoscopic holmium laser ablation therapy and the airway significantly expanded.No re－stenosis was found during follow－up.Conclusion Electronic bronchoscopy is an important method to determine the cause of recurrent dyspnea in newborns , and it′safe,reliable and can play a therapeutic role in some neonates.

Objective:To describe the content and analyze the constitutive dimensions of the psychological contracts with residents contracted for family physician services.Methods:Based on a collection of policy documents on family doctor contracting services issued by central government ministries and relevant departments in Shandong province as well as 27 signed family doctor agreements in nine counties (cities, districts) of Shandong province, semi-structured interviews were made to 48 residents in both September 2019-January 2020 period and May-June 2020 period, regarding the verbal promises of family doctors and the needs of these contracted residents. Then the documented and non-documented commitments of the family doctors were extracted in the content analysis method, and a credibility test was made using the Myers reliability test formula.Results:A total of 639 written commitments of family doctors were obtained, covering 5 types of responsibilities and 20 commitments, and the credibility coefficient was 0.88. 322 codes of non-documented commitments were obtained, 4 commitments were added on the basis of documented commitments, and the credibility coefficient was 0.90. The psychological contracts were sorted out in such five areas as technical quality responsibility, cost control responsibility, convenient access responsibility, communication responsibility, and empathic responsibility, by matching the residents′ medical service needs obtained from the interviews, while the first three categories and the last two categories were classified as transactional and relational psychological contracts, respectively, with 10 items of technical quality responsibility accounting for the highest percentage (41.67%).Conclusions:The documented and non-documented commitments of family doctors differed in content and structure. The psychological contract signed by residents was mainly transactional, and residents had higher expectations for family doctors to provide high-quality, convenient and economical services.

Objective The diagnostic efficacy of the two gene methylation indexes was verified by lung biopsy or postoperative disease examination results.Methods A prospective study was conducted to collect 99 patients diagnosed with pulmonary nodules and masses in the Third People's Hospital of Yunnan Province from March 2019 to March 2020.After bronchoscopy and BALF samples were collected,regular follow-up,lung puncture biopsy and post-operative disease examination were performed.Results Ninety-nine patients with pulmonary nodules and masses were divided into lung cancer group(n = 50)and benign lung disease group(n = 49)after pathological diagnosis.The age of patients in the lung cancer group was(62.64±9.71)years,and that of the benign lung disease group was(60.48±13.69)years,and there was a statistical difference between the two groups(P = 0.032).In the diagnosis of lung cancer,the sensitivity and specificity of SHOX2 and RASSF1A genes alone were found to be 72%and 58%,respectively,and 92.3%and 95.9%,respectively.The combined test of the two genes showed a higher sensitivity in the diagnosis of lung cancer,0.84,compared to 0.102 in the benign disease group(P<0.001).ROC curve analysis showed that the sensitivity of the two genes could be increased to 84%when methylation was combined.Conclusion The methylation test of SHOX2 and RASS1A gene in alveolar lavage fluid has a good value in the diagnosis of lung cancer patients with pulmonary nodules and masses and SHOX2 combined with RASSF1A can be an important supplementary tool for early diagnosis of lung cancer when imaging and histological diagnosis are unclear.