Humans ; Palatine Tonsil ; Tonsillitis

ObjectTo study the application of ultrasonic circulation technique for the extraction of triterpenoids from Ganoderma lucidum (Leyss.ex Fr.) Karst. Methods On the basis of conventional method, the processing steps of ultrasonic circulation treatment were added. Results The comparative experiments showed that less amounts of various solvents and shorter extraction time were needed for ultrasonic circulation extraction, with the product ratio of about 40 percent higher than that of conventional method. Furthermore, a good consistency of the target product analyzed by HPLC was found between two different extraction methods. Conclusion The ultrasonic circulation technique has a potential application to the extraction of triterpenoids from G. lucidum.

Objective To analyze the therapeutic effect of noninvasive mechanical ventilation in chronic obstructive pulmonary disease (COPD) patients with respiratory failure.Methods Sixty patients with COPD respiratory failure were randomly divided into two groups.30 cases in the conventional treatment group used conventional comprehensive therapy.30 cases in the nonfinvasive mechanical ventilation group were given noninvasive mechanical ventilation based on conventional treatment.The total effective rate,time to correct the abnormal breathing,hospitalization time were compared between the two groups.Before and after treatment,the arterial blood gas analysis indicators and heart rate,respiratory rate,probability,mortality for ventilator ventilation were compared in the two groups.Results The total effective rate of the noninvasive mechanical ventilation group was 96.67％,which was higher than 73.33％ of the conventional treatment group(x2 =6.405,P ＜ 0.05).The time to correct the abnormal breathing,hospitalization time of noninvasive mechanical ventilation group were (5.51 ± 1.41) d,(9.51 ± 2.13) d,respectively,which were shorter than (9.39 ± 2.56) d,(12.99 ± 3.57) d of the conventional treatment group (t =8.223,9.633,all P ＜ 0.05).Before treatment,the arterial blood gas analysis parameters and heart rate had no statistically significant differences between the two groups (all P ＞ 0.05).After treatment,the frequency of PaCO2,PaO2,heart rate and respiratory rate in the conventional treatment group were (60.45 ± 3.94)mmHg,(60.24 ± 4.12)mmHg,(92.58 ± 0.61)times/min,(22.45 ± 3.14)times/min,respectively,which in the noninvasive mechanical ventilation group were (52.24 ± 1.23) mmHg,(76.24 ± 5.26) mmHg,(83.92 ± 0.62) times/min,(17.26 ± 2.23) times/min,respectively,the differences between the two groups were statistically significant(t =5.133,3.734,5.166,6.360,all P ＜ 0.05).The invasive rate of invasive ventilator and mortality of noninvasive mechanical ventilation group were 3.33％ and 0.00％,respectively,which were lower than 20.00％,13.33％ of the conventional treatment group (x2 =7.214,6.247,all P ＜ 0.05).Conclusion Noninvasive mechanical ventilation is effective in treatment of patients with COPD respiratory failure,which can effectively improve the indicators of arterial blood gas and heart rate and respiratory rate,improve the prognosis of patients,improve the ventilation probability of invasive ventilator.

Objective To find out the resistant situation and drug of Mycobacteria patients in Sichuan and offer foundation for clinical.Methods Two hundred randomized clinical isolates of Mycobacterium were determined by Roche drug sensitivity and minimum inhibitory concentration (MIC) method.Results Of the 200 clinical isolates,192 stains were Mycobacterium tuberculosis(MTB) (96.0％),8 strains (4.0％) were non-tuberculosis mycobacterium(NTM).Of the 192 MTB strains,108( 57.3％ ) sensitive strains and 84 (43.7％)stains were resistant to one or more than one drugs.Among these 84 resistant strains 23 were multi-drug resistant ( MDR,12.0％ ),4 were extensively drug resistant( XDR,2.1％ ).The anti-TB drug resistance rates were:SM(16.7％),INH(20.8％),RFP(17.2％),EMB(10.9％),PI(16.1％),LFX(8.8％),AMK ( 16.7％ ),CPM ( 6.2％ ),PTA ( 33.3％ ),respectively.Conclusion The resistance rate of tuberculosis keeps at a high level in Sichuan,especially the resistance rate of multiple (≥4) drug,we should oar attention.

Objective To investigate the effect of 11 mHz ultra-low frequency transcranial magnetic stimulation (ILF-TMS) on neural function recovery and expressions ofnestin and Brdu in the hippocampus of cerebral ischemia and reperfusion rats.Methods Seventy-two rats were used in our study and divided into 11 mHz ILF-TMS group,sham-stimulated group and sham-operated group (n=24);The filament method was used to establish the focal cerebral ischemia and reperfusion (I-R) rat models in the first two groups.Rats in the sham-operated group only performed blood vessel separation without ligation; rats in the 11 mHz ILF-TMS group were given magnetic stimulation at 11 rnHz and 500 Gs for 15 min once daily; rats in the sham-stimulated group were only inputted magnetic stimulator.Seven,14 and 21 d after the group division,the recovery of neurological function was evaluated by 18-point nerve dysfunction scoring method,and immunohistochemistry was used to detect the nestin and Brdu positive cells in the hippocampus of rats in each group.Results The neurological deficit scores in the 11 mHz ILF-TMS group were significantly higher than those in the sham-stimulated group and sham-operated group 14 and 21 d after group after dividing (P＜0.05).As compared with sham-stimulated group and sham-operated group,1 mHz ILF-TMS group had increased number of nestin positive cells,with significant difference on the 7th,14th and 21st d; there was no statistical significance in the number of Brdu positive cells between sham-stimulated group and 1 mHz ILF-TMS group (P＜0.05).Conclusions Brain injury can stimulate the expression of nestin and Brdu in a certain degree.Although 11 mHz ultra-low frequency transcranial magnetic stimulation can improve the expression of nestin more effectively,the function of promoting cell proliferation of Brdu-positive cells is not observed.

Objective To propose a double watermarking algorithm based on contourlet transform and speckle detection to automatically select the region of interest(ROI)for solving the problems of copyright infringement and malicious destruction of CT and MRI images.Methods The method used speckle detection and singular value decomposition to select the most relevant location in the low frequency domain of the medical image contourlet wave as the ROI,generated a zero-watermarked image in ROI for protecting image integrity,and embed the ROI zero-watermark and the copyright watermark together in the region of non-interest.Results Compared with other double watermarking algorithms,the double watermarking algorithm could greatly improve the invisibility of the carrier image after the attack.The double watermarked images had a structure similarity index measure higher than 94%.Conclusion The proposed double watermarking algorithm incorporating speckle detection and contourlet transform has better robustness against conventional attacks and geometric attacks,and significantly improves the visual quality of carrier images.

Objective To study the effect of systemic intervention on strengthen nurses’ capability of identifying events in ECG monitoring, so as to make sure the safety of patients.Methods Set up ECG monitoring quality management group, formulated alarming standard values of alarm, set sequence, unit’s default value etc.And all the nurses received the training of different level.Meanwhile, the capability of early-warning in nurses of different seniorities were observed and assessed, and data was statistically analyzed.Results The capability of early-warning in nurses of different seniorities were all improved, alarming settings time of nurses with 1-4 nursing ages was shortened from 105 s to 42 s, that of nurses with 5-9 nursing ages was shortened from 87 s to 31 s, that of nurses with more than 10 nursing ages was shortened from 68 s to 25 s.Alarm response time of nurses with 1-4 nursing ages was shortened from 92 s to 57 s, that of nurses with 5-9 nursing ages was shortened from 54 s to 42 s, and that of nurses with more than 10 nursing ages was shortened from 30 s to 25 s. Conclusions The systematic intervention can effectively improve alarm setting correctly and nurse’ s capability of early-warning, and ensure quality of critical patients’ care.

Objective:To build a medical service experience system based on role play of hospital staff, and explore its contribution to upgrading medical service, elevating medical service quality, and improving patients′ satisfaction.Methods:An indicator system for medical service experience was developed via literature review. 20 newly recruited hospital employees in 2019 were sampled randomly to form a service experience team, who were arranged to experience the full medical service process of outpatients and inpatients based on role play. The questionnaire for service quality based on patient perception and expectation was used to survey the expectation and perception values of those role players on their medical service experiences, and summarize the defects found on such six dimensions as hospital reliability, responsiveness, tangibility, assurance, empathy and cost-effectiveness. After due corrections of these defects, further experiences and patient satisfaction survey were made to assess the effects of such actions taken. Paired t test was used respectively in statistical analysis of service experience value and actual perception value, as well as the perception values before and after the actions taken, and χ2 test was used for a statistical analysis of patient satisfaction. Results:Role players experienced respectively at the emergency, outpatient and inpatient departments of the hospital for a week in August 2019. Statistics of their experiences indicated≥0.50 points difference between the mean expectation and perception values on doctor-patient communication, patient help responsiveness, outpatient process, examination report delivery duration, service attitude, patient trust on medical workers, medical environment and patient privacy protection.Following a 3-month reform, role players found improvements in such aspects as hospital reliability, responsiveness, tangibility, assurance, empathy and cost-effectiveness; patient satisfaction improved sizably in December 2019 over January of the same year( P<0.05). Conclusions:The construction and application of the medical service experience system based on role play of hospital staff prove highly useful in upgrading medical service actions, improving medical service quality, and improving patient satisfaction.

Objective:To explore the application value of dynamic monitoring of serum soluble interleukin-2 receptor (sIL-2R) and stromal cell-derived factor 1 α (SDF-1α) in patients with acute leukemia (AL).Methods:A total of 187 patients with AL admitted to the Second Hospital of Shanxi Medical University from March 2017 to August 2018 were selected and 90 healthy subjects at the same period were selected as the healthy controls. The levels of serum sIL-2R and SDF-1α were detected at the initial diagnosis, remission phase and relapse phase, respectively. The clinical value of dynamic monitoring of sIL-2R and SDF-1α was analyzed.Results:Among 187 patients with AL, 135 patients (72.19%) had complete remission (CR) after chemotherapy, 52 patients (27.81%) had partial remission, and 43 patients (31.85%) relapsed. The level of serum sIL-2R at the AL initial diagnosis period was (533±32) U/ml, which was higher than that in the healthy controls [(247±30) U/ml], and the difference was statistically significant ( t = 71.976, P < 0.01); the level of serum SDF-1α at the AL initial diagnosis was (2 968±305) pg/ml, which was higher than that in the healthy controls [(1 358±160) pg/ml], and the difference was statistically significant ( t = 47.043, P < 0.01). The levels of serum sIL-2R [(308±30) U/ml] and SDF-1α [(1 576±184) pg/ml] in the CR phase were lower than those in the initial diagnosis of patients with AL; and the levels of sIL-2R [(599±36) U/ml] and SDF-1α [(2 894±301) pg/ml] in the relapse phase were higher than those in the CR phase of patients with AL (all P < 0.01). Conclusions:The levels of serum sIL-2R and SDF-1α in patients with AL are increased, and there are big differences in the levels of sIL-2R and SDF-1α at the initial diagnosis, remission phase, and relapse phase. Dynamic monitoring of both can provide the data support for early clinical intervention.

Exosomes, as nano-vesicular substances secreted by stem cells, is rich in cells signals, which participate in cells communications. It has a good prospect in application without the risk of stem cells. In this review, the biological characteristics of exosomes were introduced, so as the advances of their effects on the fibroblasts function, extracellular matrix formation and anti-oxidation, which demonstrated a prosperous way in skin anti-aging.