Coronary heart disease has a significant age correlation,and cell aging is the basic factor of aging of the body.Aging endothelial cells can interfere with the development of coronary heart disease through oxidative stress,mitochondrial dysfunction and other ways.This article focused on the mechanism of endothelial cell aging promoting coronary heart disease,which is related to"kidney"in TCM.Kidney has physiological characteristics such as participating in the growth and aging,the interaction of essence and blood,water and liquid metabolism,etc.Deficiency of kidney essence can slow down the generation of kidney turbidity,which can also be followed by blood stasis,phlegm and other pathogenic factors eroding arteries,which is consistent with the role of endothelial cell aging in promoting plaque development and accelerating thrombosis.The article also discussed the biological connotation of treating coronary heart disease from kidney from the perspective of endothelial cell aging,and put forward that the basic principle of treating coronary heart disease from kidney should be tonifying kidney and expelling turbidity,and then treat it according to different syndromes such as heart-kidney disharmony,qi stagnation in the heart and chest,phlegm obstruction in collaterals and blood stasis obstruction in collaterals,providing new ideas for the biological research and clinical application of TCM in the treatment of coronary heart disease.

Coronary heart disease has a significant age correlation,and cell aging is the basic factor of aging of the body.Aging endothelial cells can interfere with the development of coronary heart disease through oxidative stress,mitochondrial dysfunction and other ways.This article focused on the mechanism of endothelial cell aging promoting coronary heart disease,which is related to"kidney"in TCM.Kidney has physiological characteristics such as participating in the growth and aging,the interaction of essence and blood,water and liquid metabolism,etc.Deficiency of kidney essence can slow down the generation of kidney turbidity,which can also be followed by blood stasis,phlegm and other pathogenic factors eroding arteries,which is consistent with the role of endothelial cell aging in promoting plaque development and accelerating thrombosis.The article also discussed the biological connotation of treating coronary heart disease from kidney from the perspective of endothelial cell aging,and put forward that the basic principle of treating coronary heart disease from kidney should be tonifying kidney and expelling turbidity,and then treat it according to different syndromes such as heart-kidney disharmony,qi stagnation in the heart and chest,phlegm obstruction in collaterals and blood stasis obstruction in collaterals,providing new ideas for the biological research and clinical application of TCM in the treatment of coronary heart disease.

Objective:To develop corresponding aviation otitis media intervention measures by investigating and analyzing the related factors in civil aviation aircrews.Methods:A total of 4 789 civil aviation aircrews were selected as the subjects of observation. The incidence of aviation otitis media among civil aviation aircrew was evaluated by 7-items Eustachian Tube Dysfunction Questionnaire, and the possible influencing factors were investigated and statistically analyzed.Results:All 4 789 survey questionnaires were validate. In this survey, the total flying hours was mainly 1 000-5 000 h, and the main aircraft was A320. There were 613 out of 4 789 civil aviation aircrews had suffered from aviation otitis media/secretory otitis media, accounting for 12.80%. In which 91.96% had no ear discharge or watery discharge, 70.81% had not experienced rhinitis/sinusitis, and more than 90% had no tonsil hypertrophy, no thin or calcified tympanic membrane, no history of surgery for the eustachian tube or middle ear cavity, and no ear tightness or occasional ear tightness that resolves spontaneously. The severity of ear tightness was mainly distributed in 0-3 points range, accounting for 88.70%. In which 43.62% were with no ear tightness and 45.10% were with mild ear tightness. Among the 4 789 civil aviation aircrews, the severity of ear tightness of left and right ears had the highest incidence rate of 1 point, followed by 2 points, and the incidence rate of 3-7 points was relatively low. The incidence rate of 1-2 points was significantly higher than that of 3-7 points, and the difference was significant (( χ2=2 135.68-7 623.25, P=0.001-0.004). Conclusions:Most of the Chinese civil aviation aircrews have good eustachian tube function, but there are still a few cases of aviation otitis media. Regular inspections and timely and effective interventions are crucial for protecting the eustachian tube function and reducing the incidence of aviation otitis media in civil aviation aircrews.

Objective:To develop corresponding aviation otitis media intervention measures by investigating and analyzing the related factors in civil aviation aircrews.Methods:A total of 4 789 civil aviation aircrews were selected as the subjects of observation. The incidence of aviation otitis media among civil aviation aircrew was evaluated by 7-items Eustachian Tube Dysfunction Questionnaire, and the possible influencing factors were investigated and statistically analyzed.Results:All 4 789 survey questionnaires were validate. In this survey, the total flying hours was mainly 1 000-5 000 h, and the main aircraft was A320. There were 613 out of 4 789 civil aviation aircrews had suffered from aviation otitis media/secretory otitis media, accounting for 12.80%. In which 91.96% had no ear discharge or watery discharge, 70.81% had not experienced rhinitis/sinusitis, and more than 90% had no tonsil hypertrophy, no thin or calcified tympanic membrane, no history of surgery for the eustachian tube or middle ear cavity, and no ear tightness or occasional ear tightness that resolves spontaneously. The severity of ear tightness was mainly distributed in 0-3 points range, accounting for 88.70%. In which 43.62% were with no ear tightness and 45.10% were with mild ear tightness. Among the 4 789 civil aviation aircrews, the severity of ear tightness of left and right ears had the highest incidence rate of 1 point, followed by 2 points, and the incidence rate of 3-7 points was relatively low. The incidence rate of 1-2 points was significantly higher than that of 3-7 points, and the difference was significant (( χ2=2 135.68-7 623.25, P=0.001-0.004). Conclusions:Most of the Chinese civil aviation aircrews have good eustachian tube function, but there are still a few cases of aviation otitis media. Regular inspections and timely and effective interventions are crucial for protecting the eustachian tube function and reducing the incidence of aviation otitis media in civil aviation aircrews.

Objective:To investigate the efficacy and safety of low dose S-ketamine in analgesia of elderly patients with non-traumatic acute abdomen (NTAA) in emergency department.Methods:This was a randomized controlled trail. From January to August 2021, elderly patients with NTAA in the Emergency Department of the No. 904 Hospital of the Joint Logistic Support Force were selected. Analgesia was administered intravenously with 0.3 mg/kg S-ketamine or 0.1 mg/kg morphine injection for 15 min. Visual analogue score (VAS), respiratory rate, heart rate, non-invasive blood pressure and pulse oxygen saturation were recorded at 15 min, 30 min, 60 min and 90 min. The mini-mental state examination (MMSE) scores were recorded at 90 min after injection. The incidence of salvage analgesia, incidence of adverse reactions and diagnostic accuracy after analgesia were recorded in the two groups. VAS scores and vital signs were compared between the two groups by two-way repeated measures analysis of variance, and multiple comparisons between and within groups were performed.Results:A total of 137 elderly patients with NTAA were selected and randomly divided into two groups: S-ketamine group (SK group, 68 cases) and morphine group (M group, 69 cases). After the exclusion of patients with abscission, 39 cases were included in the SK group and 45 cases in the M group. VAS score of the SK group was significantly lower than that of the M group in 15 min after administration [(3.1±1.8) vs. (4.8±2.2)], and the difference was statistically significant ( P=0.013). There were no significant differences in vital signs and MMSE score between the two groups or within the group at each time point after medication (all P>0.05). However, the incidence of dizziness in the SK group was significantly higher than that in the M group (61.54% vs. 31.11%, P=0.005). Conclusions:Intravenous administration of low dose S-ketamine is not considered to be more effective than morphine in alleviating acute abdominal pain in elderly patients with NTAA. S-ketamine provides not only satisfactory analgesia but also short recovery time and high controllability. S-ketamine is one of the recommended analgesic alternatives of NTAA for elderly patients in emergency.

Objective: To investigate nutritional quality of school lunch in some primary schools and middle schools in the Pearl River Delta, and to provide the scientific basis for improving the nutritional quality of students lunch and formulating scientific and effective interventions. Methods: Five-day lunch meal survey by chemical analysis were conducted, and students lunch at school were recorded by meal review in three age groups from 8 primary and middle schools in the Pear River Delat area. The energy and nutrient content were obtained and compared with the reference intake of dietary nutrients of student. Results: The average protein intake at lunch of all age groups had reached the recommended standard (80%-95%), the energy supply ratio of carbohydrate in the range of 38.3%-42.3%, the energy supply ratio of fat in 63% school meal exceeded the recommended standard. Vitamin A, vitamin B 1, vitamin B 2, calcium, iron and other nutrients were seriously inadequate; while sodium intake far exceeded the recommended standard. Conclusion The main nutrients of school lunch of primary and middle school in Pearl River Delta can basically meet the growth and development needs, but there are still some deficiency and unbalanced diet nutrient content which are lower than the recommended intake. It is recommended to strengthen nutrition education of catering enterprises and school to improve the scientific combination of diets.

Objective To explore the monitoring of cerebrospinal fluid (CSF) dynamics in a model of brain herniation induced by acute intracranial hypertension in Guangxi Bama-Mini pigs by phasecontrast cine magnetic resonance imaging (PC cine MRI).Methods Femoral artery blood were extracted from 10 pigs,and injected into the frontal and temporal parietal lobe to make a model of brain herniation induced by acute intracranial hypertension.The mean arterial blood pressure (MAP),intracranial pressure (ICP),and cerebral perfusion pressure (CPP) were monitored.Routine T1WI,T2WI,coronal,sagittal and cerebrospinal fluid flow sequence (fast PC cine slice) which positioned on the cervical 3 (C3) vertebral body as the center and perpendicular to the spinal scans were performed on all experimental animals before and after blood injection with 3.0T Magnetic Resonance Imaging.The ICP,MAP,CPP,the absolute values of CSF peak flow velocity and the absolute value of carotid peak flow velocity before and after blood injection were compared.Results The ICP,MAP,CPP,and the absolute value of CSF peak flow velocity before injection of autologous arterial blood were statistically significant as compared with those after blood injection [(6.80±2.044) mmHg vs (52.20±1.619) mmHg,(76.80±7.068) mmHg vs (142.80±12.399) mmHg,(70.00±6.074) mmHg vs (90.50±12.250) mmHg,and the absolute value of CSF peak flow velocity was (243.20±77.671) mm/s vs (201.40±55.482) mm/s,respectively,P＜0.01].The absolute value of the peak velocity of the carotid artery before blood injection was not statistically significant compared with that after blood injection [(876.80±239.908) mm/s vs (799.40±241.829) mm/s,P＞0.05].Conclusion After the formation of brain herniation induced by acute intracranial hypertension,the CSF flow in the C3 level spinal canal showed a low dynamic change,and the CSF flow velocity waveform was disordered and malformed.The non-invasive measurement of CSF dynamics by PC cine MRI can provide an important basis for the change of CSF dynamics in the model of brain herniation induced by acute intracranial hypertension,and provide a theoretical basis for further research on damage control neurosurgery in the future.

Objective To compare the efficacy and influence on the immune function of oxaliplatin combined with tegafur gimeracil oteracil potassium capsule and mFOLFOX6 method in the treatment of gastric cancer with liver metastasis.Methods One hundred and thirty-four gastric cancer with liver metastasis patients who underwent treatment from Jan.2014 to Jan.2016 in Yulin First Hospital were selected as the participants and randomly divided observation group (67 cases) and control group (67 cases).The control group was treated by mFOLFOX6 method,while the observation group was treated by oxaliplatin combined with tegafur gimeracil oteracil potassium capsule.After treatment,the curative effects were evaluated.The life quality in each group as performed by KPS method before the treatment and in every period of treatment.Before and after the treatment,the levels of CD3 +,CD4 +,CD8 + and CD19 + were detected in two groups and the toxicity was compared.The SPSS 22.0 software was used to analyze relevant data,the measurement data was described by (x ± s) and using t-test,the enumeration data was described by percentage,using the Chi-square test.Results The total effective rate was 52.2％ in the observation group,higher than the 38.8％ in the control group (P ＜ 0.05).After the third and fourth course of treatment,the karnofsky perfomance status score were (81.3 ± 9.7) and (83.2 ± 9.9),were significantly higher in the observation group than which in the control group (P ＜ 0.05).After the treatment,the levels of CD3 +,CD4+,CD8+ andCD19+ were (54.21 ±6.38)％,(24.11 ±2.41) ％,(21.33±3.16) ％ and (7.18 ±1.13) ％ in the observation group,and higher than the control group (P ＜ 0.05).During the treatment,there were no serious toxicity occurs in the patients and the rates of toxicity were significantly lower in the observation group than which in the control group (P ＜ 0.05).Conclusion Oxaliplatin combined with tegafur gimeracil oteracil potassium capsule has a better effect and safety for therapy in the treatment of gastric cancer with liver metastasis than mFOLFOX6.

Objective To investigate the risk factors of severe hand,foot and mouth disease (HFMD).Methods 175 severe cases of HFMD and 183 mild cases of HFMD in the same period were randomly selected.Single factor analysis was first performed between severe and mild cases on age,gender,residence,symptoms,signs and laboratory examinations,etc,to screen out the related risk factors which P value ＜ 0.05.Then,binary logistic regression analysis was carried out to determine risk factors most related to severe HFMD.Finally,receiver operating characteristic curve (ROC) analysis was performed on severe HFMD related risk factors.Results Single factor analysis showed that there were obvious differences between children with mild HFMD and those with severe HFMD in the factors like difficulty in breathing,walking instability,vomiting,limb shaking,disturbance of consciousness,convulsions,cold sweat and weakness,thermal process,the degree of fever,pulmonary rales,heart rate,serum EV71 antibody,circulatory failure,leukocyte count,platelet count,neutrophil ratio,CRP,blood glucose,etc (x2 =15.236,19.819,33.823,52.670,12.984,10.180,29.318,52.932,34.544,14.615,46.633,31.407 and 5.303,t =3.184,3.144,2.256,2.244 and 2.828,,all P ＜0.05).Binary logistic regression analysis showed that the thermal process,startle tremor or limb jitter,serum EV71 antibody,vomiting,fever,neutrophil ratio were the related risk factors of severe HFMD (B value =2.605,2.129,1.409,1.185,0.841 and 0.103,all P ＜ 0.05).ROC analysis showed that the areas under the curve of the predicted probability and thermal process were larger than any other risk factors [(95％ CI (0.888 ～ 0.961) and (0.818 ～ 0.920)],and thus had better diagnostic values.Conclusion Children under 3 years old were the high risk population of HFMD.Such clinical symptoms as persistent high fever,vomiting,startle tremor orlimb jitter,EV71 antibody in serum and increasing neutrophil ratio were risk factors for severe HFMD.The predicted probability had more diagnostic value than any other risk factors.

ObjectiveTo compare the efficacy and side-effects in locally recurrent nasopharyngeal carcinoma (NPC) treated by intensity-modulated radiotherapy (IMRT) and two-dimensional conventional radiotherapy (2DCRT).MethodsAmong the 292 newly diagnosed,nonmetastatic recurrent NPC,211were treated with IMRT and 81 with 2DCRT.All patients were staged according to the seventh edition of the UICC 2009 staging system.Kaplan-Meier and Logrank methods were used for survival analysis.A Cox proportional hazard model was used to examine prognostic factors.ResultsThe follow-up rate was 91.8％,there are 38 patients in 2DCRT and 106 patients in IMRT group was followed more than 3 years.There were significant differences in the 3-year actuarial overall survival (OS) rate ( 36.9％ and 51.3％,x2 =8.44,P =0.004) and local progression-free survival (LRFS) rate (63.3％ and 86.0％,x2 =13.83,P =0.000),and no significant differences in actuarial distant metastasis free survival rates (79.0％ and 83.5％,x2 =0.25,P=0.618 ) between the 2DCRT group and the IMRT group.Multivariate analysis showed that T category and IMRT ( yes vs.no) were the independently prognostic factors for OS and LRFS ( x2 =9.51,5.20,P =0.002,0.023 and x2 =4.84,9.24,P =0.027,0.002 ).The incidence of grade 3and4 trismus and radiation-induced encephalopathy were 19.9％,8.1％ for the IMRT group and 43.2％,24.7％ for the 2DCRT group ( x2 =16.37,P =0.000 and x2 =14.64,P =0.000).Whereas,severe mucosa necrosis and/or massive hemorrhage in the nasopharynx was observed in IMRT group which was not common in 2DCRT (33.2％∶7.4％,x2 =20.19,P=0.000).ConclusionsHigher local tumor control and overall survival were achieved by IMRT than 2DCRT,the incidence of severe trismus and radiation-induced encephalopathy was also reduced by IMRT,in cost of a higher incidence of mucosa necrosis and/or massive hemorrhage in the nasopharynx.