Objective:To study the effects of epidermal growth factor(EGF)on the coordinated motor behaviors and changes of nigrostriatal dopaminergic system under the impact of EGF in middle-aged rats.Methods:Healthy aged Sprague Dawley(SD)rats were subcutaneously administered EGF(0.1 mg/ml)in the dorsal region for 7 days.Adhe-sive removal test,tapered beam walking test and descending a wire mesh pole test were performed to detect the changes in the coordinated motor behaviors of rats as well as changes in the expression of tyrosine hydroxylase(TH)and dopa-mine transporter(DAT)of nigrostriatal dopaminergic system in rats.Results:Middle-aged rats showed reduced behav-ioral parameters of adhesive removal test,tapered beam walking test and descending a wire mesh pole test compared with those of adult rats(P<0.05),which were improved after treatment with EGF(P<0.05).The expression of TH and DAT in nigrostriatal dopaminergic system was down-regulated in middle-aged rats compared with that in adult rats(P<0.01),however,which were up-regulated after treatment with EGF(P<0.01).Conclusion:EGF can amelio-rate the decline in coordinated motor behaviors and increases the activity of nigrostriatal dopaminergic system in middle-aged rats.

Objective:To study the effects of epidermal growth factor(EGF)on the coordinated motor behaviors and changes of nigrostriatal dopaminergic system under the impact of EGF in middle-aged rats.Methods:Healthy aged Sprague Dawley(SD)rats were subcutaneously administered EGF(0.1 mg/ml)in the dorsal region for 7 days.Adhe-sive removal test,tapered beam walking test and descending a wire mesh pole test were performed to detect the changes in the coordinated motor behaviors of rats as well as changes in the expression of tyrosine hydroxylase(TH)and dopa-mine transporter(DAT)of nigrostriatal dopaminergic system in rats.Results:Middle-aged rats showed reduced behav-ioral parameters of adhesive removal test,tapered beam walking test and descending a wire mesh pole test compared with those of adult rats(P<0.05),which were improved after treatment with EGF(P<0.05).The expression of TH and DAT in nigrostriatal dopaminergic system was down-regulated in middle-aged rats compared with that in adult rats(P<0.01),however,which were up-regulated after treatment with EGF(P<0.01).Conclusion:EGF can amelio-rate the decline in coordinated motor behaviors and increases the activity of nigrostriatal dopaminergic system in middle-aged rats.

Objective To observe the effects of ultrasound-guided modified obturator nerve block(ONB)combined with remazolam anesthesia on obturator nerve reflex(ONR)and postoperative recovery of patients with transurethral resection of bladder tumors(TURBT).Methods One hundred patients with bladder tumor admitted to Qinhuangd-ao Hospital from June 2019 to June 2021 were treated with TURBT.They were divided into conventional group(in-traspinal anesthesia+traditional ONB anesthesia)and ultrasound group(intraspinal anesthesia+improved ONB combined with remidazolam anesthesia under ultrasound guidance)with 50 cases in each according to different ONB methods.Perioperative indexes,hemodynamic indexes at different time points,intraoperative ONR occur-rence,complications and adverse anesthesia reactions were compared between the two groups.Results Compared with conventional group,ONB time,operation time,catheter indwelling time and hospital stay were shortened,and intraoperative blood loss was decreased in ultrasound group(P＜0.05).Compared with the conventional group at 30 min after administration(T1)and at the end of operation(T2),the mean arterial pressure(MAP)and oxygen saturation(SaO2)were increased in the ultrasound group(P＜0.05).Compared with the convention-al group,the incidence of ONR and bladder bleeding was decreased,and the incidence of postoperative bradycar-dia,nausea and vomiting were decreased in the ultrasound group(P＜0.05).Conclusions Ultrasound-guided modified ONB combined with remazolam anesthesia can effectively improve perioperative indexes of TURBT,re-duce intraoperative ONR and bladder bleeding,and have little influence on hemodynamics with few postoperative adverse anesthesia reactions.

Obesity is a recognized risk factor for stroke. However, many studies have shown that compared with normal weight and underweight patients, obese or overweight patients with ischemic stroke have lower risk of death and better functional outcome, suggesting that there is an obesity paradox in patients with ischemic stroke. In contrast, the obesity paradox was not observed in patients receiving reperfusion therapy, including intravenous thrombolysis and endovascular therapy. Therefore, whether there is obesity paradox in ischemic stroke is still controversial. Further high-quality evidence is needed to clarify the correlation between body weight and the outcome of ischemic stroke.

OBJECTIVE: To investigate the clinical relationship between allergic rhinitis and allergic factors with chronic rhinosinusitis with or without nasal polyps. METHOD: Two hundred patients were divided into A and B two groups. Group A of 110 patients was diagnosed allergic rhinitis. Group B of 90 patients was diagnosed chronic sinusitis with or without nasal polyps. Serums sIgE was detected with EUROIMMUN, and observe the recurrence rate of chronic sinusitis with or without nasal polyps patients who accept operation treatment and observe the incidence of allergic rhinitis superinduced chronic sinusitis with or without nasal polyps. RESULT: The total positive rate of group A sIgE was 89.09%. The total positive rate of group B sIgE was 74.44%. The postoperative recurrence rate of sIgE positive group was 58.21% and the postoperative recurrence rate of sIgE negative group was 8.70% in the group B. In the group A, the positive rate of serums sIgE in allergic rhinitis with chronic sinusitis with or without nasal polyps (37.27%) was 97.56%, while the positive rate of serums sIgE in allergic rhinitis without chronic sinusitis (62.73%) was 79.71%, there is a significant difference in allergic rhinitis with or without chronic sinusitis (χ2 = 6.96, P < 0.01). CONCLUSION There is a certain correlation between allergic rhinitis and allergic factors with chronic sinusitis with or without nasal polyps. Therefore, through avoiding allergen exposure, the treatment of allergic rhinitis can effectively control recurrence rate of chronic sinusitis and nasal polyp.
Adult ; Chronic Disease ; Humans ; Immunoglobulin E ; blood ; Nasal Polyps ; complications ; immunology ; Recurrence ; Rhinitis, Allergic ; complications ; immunology ; Sinusitis ; complications ; immunology