Objective:To study the experience of frontline medical workers in COVID-19 quarantine points.Methods:Purposive sampling method was employed and 12 frontline medical workers in COVID-19 points of Zhaoyuan City were selected for semi-structured and in-depth interview. Colaizzi′s seven-step analysis method was adopted to analyze and categorize the data.Results:The real experience of frontline medical workers in quarantine points were classified into five themes: professional mission and pride, inadequate initial response in dealing with public health emergencies (shortage of personal protective equipment,inadequate preparation of medical workers and imperfect settings of quarantine points), having some negative emotions (worrying about being infected and feeling fearful for family members), facing complex and diverse working difficulties (repugnance and diversified demands of people quarantined, heavy workload, discomfort from personal protective equipment and occupational exposure), and gaining support and appreciation (getting support from epidemic control and prevention departments as well as medical systems and winning appreciation from people quarantined).Conclusions:The frontline medical workers are lack of experience in dealing with public health emergencies and have some psychological and working pressure. Administrative department should further complete the emergency plan of centralized isolation medical observation, strengthen the contingency management of public health emergencies, attach importance to the mental health of medical workers, optimize management methods and establish flexible work schedules.

Objective To find a indicator in urine to assist diagnosis of cerebral infarction,we investigated the changes of urine ferritin in patients with cerebral infarction.Methods Collected serum from 30 healthy volunteers and 53 patients with cerebral infarction(CI),with ratio of males to females 19∶11 vs.30∶ 23,and average age was (56 ± 11) vs.(63 ± 11) respectively.Collected urine from 39 heathy volunteers and 33 patients with CI,with ratio of males to females 25∶14 vs.20∶ 13,and average age was (57 ± 10) vs.(64 ± 11) respectively.Ferritin concentration in all samples was detected with the chemical luminescence method,and the urine ferritin/urine cretinin (uFer/uCr) ratio was calculated.Differences of serum ferritin and uFer/uCr between healthy volunteers and CI patients were analyzed with the statistical software under Wilcoxon test.Urinary proteins were extracted with absolute ethanol.The extracted ferritin was displayed with Western blot for light chains and heavy chains to investigate the difference between healthy volunteers and CI patients.Results uFer/uCr was higher than that from healthy volunteers (U =292.00,P ＜0.05),and the median was (14.86 vs.6.22) μg/g.Moreover,after extraction of urinary proteins with alcohol,both light chains and heavy chains of ferritin in urine from CI patients were much more obvious than that from healthy volunteers.Conclusion The uFer/uCr ratio could provide a new proof to assist the diagnosis of cerebral infarction.

Malnutrition in patients with acute stroke is quite common. It is an independent risk factor affecting stroke prognosis. Early enteral nutrition can improve the nutritional status of the stroke patients, lower infection rate and mortality, promote recovery of neurological function, and improve the quality of life. Therefore, under the premise of the gastrointestinal tolerance, the patients with severe stroke should select early enteral nutrition as early as possible.

Objective To investigate the electrophysiological characteristics of the ventralis intermedius nucleus (Vim) in order to find an easy and safe way to confirm the target in Vim-thalamotomy. Method In microelectrode-guided selective Vim-thalamotomy for 23 Parkinson's disease patients, the background activity, amplitude and discharge frequencies of Vim were compared with its surrounding structures. The response of kinesthetic neuron and tremor cell to microstimulation was also compared. Result There were differences in backgroud activity and discharge amplitude for Vim, ventralis lateralis nucleus (VL), ventralis caudalis nucleus (VC), and internal capsule. Based on the response to active or passive movement of contralateral limb tremor cells were divided into two subgroups, which were different in localization. Contralateral tremor showed different response when the two subgroups of tremor cells were mircrostimulated. Conclusion The anterior border of Vim was easily found by microrecording. Only by combining microstimulation with microrecording could the posterior border of Vim and its interior and lateral ordination of target were identified exactly and safely. Kinesthetic neurons and tremor cells which responded to the movement of contralateral limbs should be destroyed.

Objective To investigate the effect of Danzhijiangtang capsule on serum,fat in type 2 diabetic rats.Methods The model of type 2 diabetes mellitus rats were established by injecting small does streptozotocin(STZ)into abdomen and feeding high sucrose-fat diet.All the rats were divided randomly into five groups.The level of blood glucose,serum insulin,insulin sensitivity index,blood fat(triglyceride, cholesterol,high-density lipoprotein,low-density lipoprotein),free fatty acid after treated were examined. Results Danzhijiangtang capsule could decrease the level of blood fat.Conclusion Danzhijiangtang capsule could improve the blood fat in type 2 diabetic rats.

0.05).Conclusions The serum MMP-9 can be tested as an objective index in appraisal the severity of the left to right shunt.The increased level of MMP-9 may be one of important mechanism for developing heart failure process in children with left to right shunt CHD.Monitor the level of MMP-9 will help us find adverse myocardial remodeling earlier and begin treatment immediately to prevent heart failure developing.

Objective To explore the relationship between severity of symptom and immune function in left-to-right shunt congenital heart disease (CHD) infants combined with pneumonia. Methods The clinical data of 45 left-to-right shunt CHD combined with pneumonia infants were retrospectively analyzed. The infants were divided into 2 groups according to the modified Ross score:mild group (0-6 scores, 28 cases) and severe group (7-12 scores, 17 cases);then, the infants were divided into 2 groups according to deformities:single deformity group (the infants had a kind of deformity such as ventricular septal defect, atrial septal defect and patent ductus arteriosus, 21 cases) and composite/complex deformity group (the infants combined 2 or more deformities or other malformations, 24 cases). Twelve cases of healthy check-up infants were selected as control group. The levels of lymphocyte subsets (including CD3+, CD4+, CD8+, CD4+/CD8+, NK cell and B lymphocyte) and IgG, IgA, IgM were detected in every group. Results There were no statistical differences in IgG, IgA, IgM, CD8 +, CD4 +/CD8 +, NK cell and B lymphocyte among mild group, severe group and control group or single deformity group, composite/ complex deformity group and control groups (P>0.05). The CD3+ in severe group was significantly lower than that in mild group and control group (0.59 ± 0.10 vs. 0.69 ± 0.13 and 0.69 ± 0.12), the CD4+was significantly lower than that in control group (0.34 ± 0.07 vs. 0.45 ± 0.09), and there were statistical differences (P<0.05). For CD4+, though there was statistically difference among single deformity group, composite/complex deformity group and control groups (P<0.05), no statistically significant difference was in multiple comparison among the 3 groups (P>0.05). The CD4 + in the composite/ complex deformity group was significantly lower than that in the single deformity group and the control group (0.34 ± 0.07 vs. 0.45 ± 0.15 and 0.45 ± 0.09), and there was statistical difference (P<0.05). Conclusions In left-to-right shunt CHD infants combined with pneumonia, the reduction of CD3+and CD4+may be one of the causes of serious illness.

Objective To explore the clinical and imaging features of reversible posterior leukoencephalopathy syndrome(RPLES).Methods The data of clinic five cases with RPLES were analyzed retrospectively.Results The primary diseases in this group were hypertension for one case,uraemia for three cases and lupus nephropathy for another.Clinical features of five patients include acute onset of hypertension,headache with vomiting.Neurological symptoms were conscious disturbance,seizures(in 5 cases)and visual disorder(in 3 cases).The movement of limbs were normal.The abnormal laboratery data was renal inadequacy in 5 cases.The findings of imaging of all cases included bilateral white matter of parietal and occipital lobe abnormalities,which appeared as large areas of low density on CT scan,hypo-intense in T1 and hyper-intense in T2 on MRI scan.Four cases presented clinical symptoms improvement in a short time and radiological recovery obviously after anti-hypertensive and anhydration therapy.One patient died caused on brain herniation.Conclusions Clinical features of RPLES is brain damage associated with malignant hypertension or the use of immunosuppressive agents.The most important pathogenesis is considered to be failure of the self regulation of cerebral vascular circulation.The imaging findings are bilateral symmetry cortical and subcortical edema in the posterior areas of the brain.Most patients can be recovery by timely therapy,otherwise the irreversible neuronal injury even death can be also found in very few serious cases.

Objective To study the disease pathogenesis of systemic lupus erythematosus patients with thrombocytopenia ,and discuss reticulated platelets (RP) in SLE merger thrombocytopenia disease of diagnosis and treatment in the clinical application val-ue .Methods 55 patients diagnosed with SLE patients and 50 cases of healthy check-up ,low platelet count patients of SLE patients treated before and after the inspection by Sysmex XE-5000 automatic blood cell analyzer immature platelet fraction (IPF) and other peripheral blood cell parameters .Results Group of patients with SLE and normal controls of IPF test results respectively was (5 .30 ± 3 .75)% ,(2 .74 ± 1 .05)% ,both comparative difference was statistically significant (P<0 .05);SLE associated with throm-bocytopeniagroupofIPF[(10.14±3.66)% ],platelets(PLT)[(67.2±13.5)×109/L],meanplateletvolume(MPV)[(12.64± 0 .92)fL] ,platelet distribution width(PDW)[(18 .24 ± 1 .70)fL] compared with normal control group and SLE did not reduce plate-let group ,differences had statistical significance(P<0 .05);SLE associated with thrombocytopenia in patients with IPF respectively before and after treatment was (9 .76 ± 1 .82)% and (5 .86 ± 0 .96)% ,both comparative difference was statistically significant (P<0 . 05) .Conclusion The main cause of SLE patients with thrombocytopenia may be associated with peripheral blood platelet destruc-tion ,IPF′s result can reflect the bone marrow platelet production ,Help in the auxiliary diagnosis of disease and prognosis judg-ment .