BACKGROUND:Stem cells can promote nerve regeneration,repair damaged nerves,inhibit inflammation and apoptosis of nerve cells,and provide a new way for the treatment of Alzheimer's disease. OBJECTIVE:To make a bibliometrical analysis of the articles on stem cell therapy for Alzheimer's disease published internationally from 2004 to 2023,in order to reveal the research hotspot and trend of stem cell therapy for Alzheimer's disease. METHODS:From the Web of Science Core Collection database,by using Excel,VOSviewer,and Citespace software,the annual number of publications,countries,institutions,journals/co-cited journals,authors,and keywords of articles related to stem cells and Alzheimer's disease published from January 1,2004 to October 31,2023 were visually analyzed. RESULTS AND CONCLUSION:A total of 3 521 core papers were included,and the number of published papers increased year by year.The United States is the country with the most papers.Harvard Medical School is the most prolific institution.Maiese kenneth is the author with the most papers.International Journal of Molecular Sciences has the most papers in this field.The journal PLoS One published the most citations.At present,the field of stem cell therapy for Alzheimer's disease focuses on pathophysiological mechanism and animal experimental research,and"neurogenesis","oxidative stress","extracellular vesicles",and"mesenchymal stem cells"are the research trends in this field.Stem cell therapy for Alzheimer's disease has broad prospects.In the future,exchanges and cooperation between institutions and authors should be strengthened to further explore the main mechanism of stem cell therapy for Alzheimer's disease,solve possible clinical problems such as immune rejection,effectiveness,and safety,and further tap the potential of stem cells in the treatment of Alzheimer's disease.

Objective:To explore the effect of cognitive enhancement and self-management intervention led by specialist nurses in patients with diabetic retinopathy (DR) .Methods:From July 2020 to June 2021, a total of 116 DR patients in Ophtalmology Department of the First Affiliated Hospital of Zhengzhou University were selected using convenience sampling method and randomly divided into the control group and the observation group with 58 cases in each group. The control group conducted conventional nursing management, and the observation group carried out cognitive enhancement and self-management intervention led by specialist nurses on the basis of the control group for 3 months. Before discharge and 3 months after discharge, the quality of life and self-care ability of the two groups were compared.Results:After discharge, the fasting plasma glucose, postprandial 2 hours blood glucose, glycosylated hemoglobin, and quality of life scores of the two groups were lower than those before discharge, while self-care ability scores of the two groups were higher than those before discharge. There were significant differences in the indexes of the observation group before and after intervention ( P<0.05) . After intervention, fasting blood glucose, 2 hours postprandial blood glucose, glycosylated hemoglobin and quality of life scores of the observation group were lower than those of the control group, while the score of self-care ability was higher than that of the control group, with statistically significant differences ( P<0.05) . Conclusions:Cognitive enhancement and self-management intervention led by specialist nurses are beneficial to blood glucose control in DR patients, and can effectively improve their self-care ability and quality of life.

OBJECTIVE：To prepare Imperatorin ultradeformable liposomes gel （IMP-UDLs-Gel），and to evaluate its quality. METHODS：Based on single factor test ，using 12 h accumulative penetration amount （Q12h）as evaluation index ，the proportion of carbomer 940，glycerol and propyl glycol in formulation of IMP-UDLs-Gel were investigated by orthogonal test. The optimal formulation was screened. The quality of IMP-UDLs-Gel prepared with the optimal formulation was evaluated. RESULTS ：The optimal formulation of IMP-UDLs-Gel included carbomer 940 proportion of 1％，glycerol proportion of 15％ and propyl glycol proportion of 10％. Q12 h of IMP-UDLs-Gel was （11.543±0.241）μg/cm2；the appearance was milky white and translucent ；the particle size was （93.13±1.68）nm，PDI was 0.268±0.012，Zeta potential was （－24.96±1.99）mV；pH was 7.32±0.03； viscosity was （45.37±1.27）g·s；steady flow was （0.727±0.002）μg·h/cm2，lag time was （4.358±0.175）h，apparent permeability coefficient was 1.392×10－3 cm/h，and it has good physical and optical stability. CONCLUSIONS ：The preparation method is stable and feasible ，and the prepared IMP-UDLs-Gel has good adhesion ，stability and transdermal property.

Objective:To investigate the effect of bundles of care on pediatric hypnosis by rectal chloral hydrate.Method:A total of 368 children aged 0 to 3 years old who were treated in Dalian Children′s Hospital from December 2018 to June 2019 and were treated with chloralhydrate enemas were randomly divided into the control group (routine nursing intervention) and observation groups (bundled Intervention) 184 cases each. The chloralhydrate enemas were inserted for sedation, and the observation group added sedation while chloralhydrate enemas for sedation. After admission, record the data of each patient, and do the Ramsay sedation score after sedation. According to the sedation score, the sedation failure rate of chloralhydrate enema was increased, and the proportion of each score in the group was compared.Results:Ramsay sedation scores of the observation group and the control group after enema were 5.42 ± 1.34 and 3.14 ± 1.21, respectively. There was significant difference between the two groups ( t value was 2.08, P<0.05). The failure rates in experimental group and control group were 13.59% (25/184) and 38.59% (71/184), respectively. There was a significant difference between two groups ( χ2 value was 29.82, P<0.05). Conclusion:Bundles of care could decrease the failure rate of rectal chloral hydrate hypnosis significantly, then reduce the suffering of children. It is worth being widely used in clinic.

Objective To compare the clinical effect between small incision surgery and traditional resection for thyroid adenoma. Methods 60 patients with thyroid adenoma were divided into two groups according to different surgical methods. 30 patients in the observation group underwent small incision resection, and 30 patients in the control group underwent conventional thyroid tumor resection. The postoperative surgical results, the intraoperative blood loss, operation time, hospital stay and postoperative complications were compared between the two groups. Results The intraoperative blood loss of the observation group was (19.15±8.30) mL, which was significantly than that of the control group. The operation time of the observation group was (78.73±12.61) min, which was significantly than that of the control group.The hospitalization time of the observation group was (3.74±1.05) d, which was significantly shorter than that in the con trol group, and the difference was significant (P<0.05). After operation, the total effective rate of the observation group was significantly higher than that of the control group, and the difference was significant (P<0.05). The postoperative complication rate of the observation group was significantly lower than that of the control group. There was significant difference between the two groups (3.3％ vs 16.7％, P<0.05). Conclusion Small incision surgery is more effective than traditional resection for thyroid adenoma. It has the advantages of small incision, less bleeding, less complications, and quick recovery after surgery.It is worthy of widespread application and application.

miRNAs,as a class of endogenous small noncoding RNAs,have come to be a new treatment target for ischemic brain injury as many of them have been discovered to participate in multiple links of the injury.Autophagy,a catalysis process based on lysosomes,has become a current research hotspot because it has been found to participate in and regulate the pathological process of ischemic brain injury.As regulation of autophagy by miRNAs represents a new post-transcriptional regulatory mechanism,autophagy miRNAs after ischemic brain injury have attracted growing interest trom researchers worldwide.It is expected that the role of miRNAs in autophagy regulation can be clarified with the research progress and new therapeutic targets and directions can be found for the treatment of ischemic brain injury.This review gives a brief summary of the research progress conceming the role of miRNAs in regulating autophagy after ischemic brain injury,hoping the information may promote understanding of the important effects and potential therapeutic values of miRNAs-regulated autophagy in ischemic brain injury.

Objective To evaluate clinical value of interventional radiology in difficult extraction of stuck tunnel hemodialysis catheter (TCC).Methods Maintenance hemodialysis patients who required removal of stuck TCC in our hospital from June 2015 to June 2017 were enrolled.Medical history and preoperative examinations were carefully evaluated.Patients were pulled rotationally the catheter under the fluoroscopy guidance and exchanged the TCC.The information and procedure-related complication were recorded.Balloon dilation or snare technique would be used when failed to remove the stuck catheter.Results A total of 22 patients were enrolled,with an average age of (67.2±18.5) years,a median dialysis time of 54(18,106) months,and catheter indwelling time of 37(14,82) months.All patients were successfully removed the stuck catheter,among which 18 cases (81.8％) had fibrin sheath and 13 cases with sheath calcification.TCC mainly stuck in the junction of internal jugular vein and innominate vein,middle and lower innominate vein and middle part of superior vena cava.No procedure-related major complication occurred.Sixteen cases (72.7％) complained of transient substernal extraction pain and 1 case occurred groin hematoma during operation.Conclusions Catheter incarceration problem should be alert to the hemodialysis patients with catheter indwelling time of more than 2-3 years.The minimally invasive interventional techniques including rotationally pull-out under fluoroscopy guidance and balloon angioplasty are safe and effective in removal of the stuck TCC.

Objective: To compare the diagnosis and treatment experience of brain abscesses and improve prognosis. Methods: The data of 302 patients of brain abscess at Department of Neurosurgery in Tianjin Medical University General Hospital from 1980 to 2014 was analyzed retrospectively. There were 215 male and 87 female patients aged from 11 to 82 years with mean age of (30±8) years. The patients was divided into 1980-2001 group and 2002-2014 group according to different diagnosis and the treatment methods. The therapy methods include operation and conservative treatment. There were 196 cases received operation, including 95 cases of excision, 89 cases of ventriculopuncture, 12 cases of excision after ventriculopuncture, 106 cases received drug conservative therapy. Two groups of information including clinical manifestation, abscess location, therapeutic effect and prognosis were compared by χ² test. Results: Compared to 1980-2001 group, adjacent infection incidence declined(χ²=8.000, P=0.005). The ratio of single abscess declined and multiple abscess increased(χ²=11.060, P=0.001), the infection proportion of frontal lobe and temporal lobe decreased(χ²=9.080, P=0.003; χ²=15.440, P=0.000). The ratio of headache and vomit and papilledema declined significantly(χ²=23.290, P=0.000; χ²=21.020, P=0.000; χ²=2.290, P=0.001). Total mortality of 302 patients were 23 cases and 5 cases of 1980-2001 group and 2002-2014 group (10.4% vs. 6.3%, χ²=1.180, P=0.277). However, there were statistical difference in postoperative mortality between both groups (14.4% vs. 4.0%, χ² =3.880, P=0.049). Conclusion With the application of antibiotics and the development of neurosurgical techniques, the prognosis of brain abscess has been improved.

Objective To explore the risk factors of cognitive impairment of elderly patients with cerebral infarction in order to provide the theoretical basis for the clinical intervention. Methods A total of 237 cases with senile cerebral infarction were selected as ours subjects who were hospitalized from Mar. 2010 to Jun. 2013 in Kailuan General Hospital Affiliated to Hebei United University. The general condition and medical history were recorded. The auxiliary examination was performed. Cerebral infarction was diagnosed based on the onset to diagnosis standard and MoCA scores of within 2 weeks. The patients with less than 26 MoCA score were diagnosed as cognitive dysfunction and otherwise were thought as normal. Single factor analysis methods and non conditional Logistic regression were applied to analyze the analysis. Results There was no significant difference in terms of incidence between patients with different gender. Patients with age more than 75 years old and lower education levels had the high incidence rate than those with younger age and high education levels( χ2=16. 661,5. 453;P﹤0. 05). The cognitive dysfunction incidence of patients with white collar was lower than those with blue collar(χ2 = 5. 458,P ﹤ 0. 05 ). And the cognitive dysfunction incidence of patients with hypertention,diabetes,heart disease and leukoaraiosis were higher than those without the above diseases(χ2 =28. 423,5. 621,7. 768,6. 070;P﹤0. 05). The incidence of patients smoking more was significantly higher than that of smoking less or no(χ2 =5. 045,P ﹤0. 05 ). Multiple factors and non conditional Logistic regression analysis showed that,67 Senile cerebral infarction patients occurred cognitive impairment within 2 weeks. The independent risk factors for its occurrence included age greater than 75 years( P=0. 000 ),diabetes mellitus( P=0. 043),hypertension(P=0. 000)and leukoaraiosis(P=0. 041). Conclusion There are many risk factors related to cognitive impairment after cerebral infarction occurred in the elderly. The intervention should take in many aspects and the risk factors should early found.