BACKGROUND:A large number of articles have reported the effect and mechanism of platelet-rich plasma and hydrogel in the treatment of spinal cord injury,but few articles have summarized their treatment strategies for spinal cord injury. OBJECTIVE:To summarize the pathological process of spinal cord injury and the strategies of repairing spinal cord injury with platelet-rich plasma and hydrogel alone and in combination. METHODS:PubMed and CNKI databases were searched for articles published from inception to March 2024 by computer.The Chinese search terms were"spinal cord injury,platelet-rich plasma,hydrogel."The English search terms were"spinal cord injury,spinal cord,platelet-rich plasma,hydrogel,angiogenesis,neuralgia,combination therapy."Articles were screened according to inclusion and exclusion criteria,and 128 articles were finally included for review and analysis. RESULTS AND CONCLUSION:(1)The classification of platelet-rich plasma is complex and diverse,and the effects of platelet-rich plasma in the repair treatment of spinal cord injury are various,but they all show certain positive effects,that is,they can promote axon regeneration,stimulate angiogenesis,and treat neuropathic pain and so on.(2)The effect of platelet-rich plasma is mainly due to the growth factors contained in platelet-rich plasma.(3)There are many types of hydrogels,which mainly play the role of filling,simulating extracellular matrix,carrying drugs and biological products,and carrying cells as scaffolds in the repair treatment of spinal cord injury.(4)Compared with single therapy,combination therapy of platelet-rich plasma and hydrogel can promote nerve regeneration and spinal cord function recovery more effectively.

Background: Automated insulin delivery (AID) systems studies are upsurging, half of which were published in the last 5 years. We aimed to evaluate the efficacy and safety of AID systems in patients with type 1 diabetes mellitus (T1DM). Methods: We searched PubMed, Embase, Cochrane Library, Web of Science, and ClinicalTrials.gov until August 31, 2023. Randomized clinical trials that compared AID systems with other insulin-based treatments in patients with T1DM were considered eligible. Studies characteristics and glycemic metrics was extracted by three researchers independently. Results: Sixty-five trials (3,623 patients) were included. The percentage of time in range (TIR) was 11.74% (95% confidence interval [CI], 9.37 to 14.12; P<0.001) higher with AID systems compared with control treatments. Patients on AID systems had more pronounced improvement of time below range when diabetes duration was more than 20 years (–1.80% vs. –0.86%, P=0.031) and baseline glycosylated hemoglobin lower than 7.5% (–1.93% vs. –0.87%, P=0.033). Dual-hormone full closed-loop systems revealed a greater improvement in TIR compared with hybrid closed-loop systems (–19.64% vs. –10.87%). Notably, glycemia risk index (GRI) (–3.74; 95% CI, –6.34 to –1.14; P<0.01) was also improved with AID therapy. Conclusion AID systems showed significant advantages compared to other insulin-based treatments in improving glucose control represented by TIR and GRI in patients with T1DM, with more favorable effect in euglycemia by dual-hormone full closedloop systems as well as less hypoglycemia for patients who are within target for glycemic control and have longer diabetes duration.

Background: Automated insulin delivery (AID) systems studies are upsurging, half of which were published in the last 5 years. We aimed to evaluate the efficacy and safety of AID systems in patients with type 1 diabetes mellitus (T1DM). Methods: We searched PubMed, Embase, Cochrane Library, Web of Science, and ClinicalTrials.gov until August 31, 2023. Randomized clinical trials that compared AID systems with other insulin-based treatments in patients with T1DM were considered eligible. Studies characteristics and glycemic metrics was extracted by three researchers independently. Results: Sixty-five trials (3,623 patients) were included. The percentage of time in range (TIR) was 11.74% (95% confidence interval [CI], 9.37 to 14.12; P<0.001) higher with AID systems compared with control treatments. Patients on AID systems had more pronounced improvement of time below range when diabetes duration was more than 20 years (–1.80% vs. –0.86%, P=0.031) and baseline glycosylated hemoglobin lower than 7.5% (–1.93% vs. –0.87%, P=0.033). Dual-hormone full closed-loop systems revealed a greater improvement in TIR compared with hybrid closed-loop systems (–19.64% vs. –10.87%). Notably, glycemia risk index (GRI) (–3.74; 95% CI, –6.34 to –1.14; P<0.01) was also improved with AID therapy. Conclusion AID systems showed significant advantages compared to other insulin-based treatments in improving glucose control represented by TIR and GRI in patients with T1DM, with more favorable effect in euglycemia by dual-hormone full closedloop systems as well as less hypoglycemia for patients who are within target for glycemic control and have longer diabetes duration.

Background: Automated insulin delivery (AID) systems studies are upsurging, half of which were published in the last 5 years. We aimed to evaluate the efficacy and safety of AID systems in patients with type 1 diabetes mellitus (T1DM). Methods: We searched PubMed, Embase, Cochrane Library, Web of Science, and ClinicalTrials.gov until August 31, 2023. Randomized clinical trials that compared AID systems with other insulin-based treatments in patients with T1DM were considered eligible. Studies characteristics and glycemic metrics was extracted by three researchers independently. Results: Sixty-five trials (3,623 patients) were included. The percentage of time in range (TIR) was 11.74% (95% confidence interval [CI], 9.37 to 14.12; P<0.001) higher with AID systems compared with control treatments. Patients on AID systems had more pronounced improvement of time below range when diabetes duration was more than 20 years (–1.80% vs. –0.86%, P=0.031) and baseline glycosylated hemoglobin lower than 7.5% (–1.93% vs. –0.87%, P=0.033). Dual-hormone full closed-loop systems revealed a greater improvement in TIR compared with hybrid closed-loop systems (–19.64% vs. –10.87%). Notably, glycemia risk index (GRI) (–3.74; 95% CI, –6.34 to –1.14; P<0.01) was also improved with AID therapy. Conclusion AID systems showed significant advantages compared to other insulin-based treatments in improving glucose control represented by TIR and GRI in patients with T1DM, with more favorable effect in euglycemia by dual-hormone full closedloop systems as well as less hypoglycemia for patients who are within target for glycemic control and have longer diabetes duration.

Background: Automated insulin delivery (AID) systems studies are upsurging, half of which were published in the last 5 years. We aimed to evaluate the efficacy and safety of AID systems in patients with type 1 diabetes mellitus (T1DM). Methods: We searched PubMed, Embase, Cochrane Library, Web of Science, and ClinicalTrials.gov until August 31, 2023. Randomized clinical trials that compared AID systems with other insulin-based treatments in patients with T1DM were considered eligible. Studies characteristics and glycemic metrics was extracted by three researchers independently. Results: Sixty-five trials (3,623 patients) were included. The percentage of time in range (TIR) was 11.74% (95% confidence interval [CI], 9.37 to 14.12; P<0.001) higher with AID systems compared with control treatments. Patients on AID systems had more pronounced improvement of time below range when diabetes duration was more than 20 years (–1.80% vs. –0.86%, P=0.031) and baseline glycosylated hemoglobin lower than 7.5% (–1.93% vs. –0.87%, P=0.033). Dual-hormone full closed-loop systems revealed a greater improvement in TIR compared with hybrid closed-loop systems (–19.64% vs. –10.87%). Notably, glycemia risk index (GRI) (–3.74; 95% CI, –6.34 to –1.14; P<0.01) was also improved with AID therapy. Conclusion AID systems showed significant advantages compared to other insulin-based treatments in improving glucose control represented by TIR and GRI in patients with T1DM, with more favorable effect in euglycemia by dual-hormone full closedloop systems as well as less hypoglycemia for patients who are within target for glycemic control and have longer diabetes duration.

ObjectiveExploring the role of microRNA126 （miRNA126） in chronic kidney disease combined with atherosclerosis （CKD AS） by regulating the phosphatidylinositol-3-kinase （PI3K）/protein kinase B （Akt）/mammalian target of rapamycin （mTOR） signaling pathway and the mechanism of Shenshuai Xiezhuo decoction in the intervention of CKD AS rats with 5/6 nephrectomy combined with high-fat feeding. MethodA total of 60 SD rats were randomly divided into sham operation group， model group， losartan group， and low， medium， and high dose groups of Shenshuai Xiezhuo decoction. The CKD AS rat model was established by 5/6 nephrectomy combined with high-fat feeding for 10 weeks. The low， medium， and high dose groups （6.0， 12.0， 24.0 g·kg^-1·d^-1） of Shenshuai Xiezhuo decoction and the losartan group （20 mg·kg^-1·d^-1） were gavaged， and the corresponding intervention was carried out for eight weeks. Then， the rats were killed， and samples were collected for corresponding detection. Fully automated biochemical analyzers were used to detect kidney function and blood lipids in rats： blood creatinine （SCr）， blood urea nitrogen （BUN）， total cholesterol （TC）， triglyceride （TG）， and low-density lipoprotein cholesterol （LDL-C） levels. Hematoxylin-eosin （HE） and Masson staining of aortic tissue and pathological observation under a light microscope were carried out， and autophagosomes and autophagy lysosomes were observed by transmission electron microscopy. Real-time fluorescence quantitative polymerase chain reaction （Real-time PCR） was used to determine the mRNA levels of miRNA126， PI3K， Akt， and mTOR in rats， and Western blot was used to determine the protein expression levels of phosphorylated （p）-PI3K， PI3K， p-Akt， Akt， p -mTOR， mTOR， benzyl chloride 1 （Beclin-1）， and microtubule-associated protein light chain 3Ⅱ/Ⅰ （LC3Ⅱ/LC3Ⅰ）. ResultCompared with the sham operation group， the serum SCr， BUN， TC， TG， and LDL-C in the model group were significantly increased （P<0.01）. Compared with the model group， the SCr， BUN， TC， TG， and LDL-C were decreased in the losartan group and low， medium， and high dose groups of Shenshuai Xiezhuo decoction （P<0.05）. Compared with the sham operation group， thickening plaques， infiltration of mononuclear macrophages， a small number of foam cells， disordered arrangement of smooth muscle fibers in the tunica media， and increased collagen fibers were observed in the model group， and the lesions in the losartan group and Shenshuai Xiezhuo decoction groups were alleviated compared with those in the model group. Compared with the model group， the number of autophagosomes and autophagy lysosomes increased in the medium and high dose groups of Shenshuai Xiezhuo decoction. Compared with the sham operation group， the expression of miRNA126 in the aortic tissue of the model group was significantly decreased （P<0.01）， and the mRNA expressions of PI3K， Akt， and mTOR were significantly increased （P<0.01）. Compared with the model group， the expression of miRNA126 in the aortic tissue of rats in high， medium， and low dose groups of Shenshuai Xiezhuo decoction and losartan group was significantly increased （P<0.01）， while the mRNA expressions of PI3K， Akt， and mTOR were significantly decreased （P<0.01）. Compared with the sham operation group， the protein expressions of p-PI3K， PI3K， p-Akt， Akt， p-mTOR， and mTOR in the model group were significantly increased （P<0.01）， while the protein levels of Beclin-1， LC3Ⅰ， and LC3Ⅱ were significantly decreased （P<0.01）. Compared with the model group， the protein expressions of p-PI3K， PI3K， p-Akt， Akt， p-mTOR， and mTOR in the losartan group and low， medium， and high dose groups of Shenshuai Xiezhuo decoction were decreased （P<0.05）， while the protein levels of Beclin-1 and LC3Ⅱ/LC3Ⅰ were increased （P<0.05）. ConclusionThe expression of miRNA126 is decreased in the aortic tissue of CKD AS rats， and the PI3K/Akt/mTOR pathway is activated to inhibit autophagy flux. Shenshuai Xiezhuo decoction regulates the PI3K/Akt/mTOR signaling pathway through miRNA126， restores the autophagy of aortic endothelial cells， protects the damage of CKD vessels， reduces the formation of As plaques， and slows the development of cardiovascular complications.

Objective To cultivate the ability of laboratory resident physicians in multiple aspects and enhance their post-competence for laboratory medicine.Methods The residents recruited into the Cancer Hospital of China Academy of Medical Sciences Laboratory Base were divided into junior residents and senior residents.According to the different training contents and objectives,the exploration of the hierarchically progressive training model was carried out,which mainly included three aspects:training plan,process training and process assessment.Results After the implementation of the hierarchical progressive training model,the average theoretical score and the average score in the skill operation examination of the residents increased to over 90 and 95,respectively.Meanwhile,the comprehensive clinical ability was also improved.Breakthroughs of teaching,scientific research and honor were achieved from"nothing"before the implementation to"something"after the implementation,and it actively promoted the improvement of the post-competency of the residents in laboratory medicine.Conclusion The application of the hierarchically progressive training mode in standardized training of residents in laboratory medicine could play a good role in promoting the training of post-competence for residents.

Objective To investigate the correlation of triglyceride glucose product index(TyG index)with the diagnosis of coronary heart disease(CHD)and the severity of coronary stenosis.Methods A total of 404 patients who received coronary angiography for the first time in Xinhua Hospital Affiliated to Shanghai Jiaotong University School of Medicine with unexplained chest pain from December 2021 to October 2022 were included.All subjects were divided into CHD group(n=216)and non-CHD group(n=188).General clin-ical data,laboratory information and coronary angiography results of all participants were collected.The CHD group(n=123)and the non-CHD group(n=123)were obtained after the propensity score matching(PSM).Patients in CHD group were further divided into low Gensini score(Gensini score＜35,n=59)group and high Gensini score(Gensini score ≥ 35,n=64)group according to the me-dian Gensini score.The differences among groups were compared and the relation between TyG index and the severity of coronary artery stenosis was analyzed.Then the predictive value of TyG index for CHD and the severity of coronary lesion was evaluated by Logistic regres-sion and receiver operating characteristic(ROC)curve.Results After PSM,the differences in TyG index,TG,FPG,HDL-C in CHD group were statistically significant compared with the non-CHD group(P＜0.05).Multivariate Logistic regression analysis showed that the TyG index was an independent risk factor for CHD.Spearman correlation analysis showed that the TyG index was positively correlated with the Gensini score(r=0.618,P＜0.001).The ROC curve analysis showed that the area under the curve(AUC)of the TyG index predicting a high Gensini score was 0.873(95％CI:0.802-0.943,P＜0.001).A cut-off value was 7.08,and the sensitivity and specificity were 95.2％and 67.3％,respectively.Conclusion TyG index can be used as an independent risk factor for CHD,and has certain predictive value for the severity of coronary stenosis.

Alzheimer's disease(AD)is a disease with clinical manifestations of learning and memory impairment,cognitive dysfunction,and language dysfunction,the pathogenesis of AD is complex,of which Aβ theory covers various mechamisms such as oxidative stress,inflammation,apoptosis and other mechanisms.Based on the Aβ mechanism and related signaling pathways,this study discusses the overview of typical Chinese medicines and their active ingredients in the prevention and treatment of AD.The aim is to provide insights and references for the development of traditional Chinese medicines for the prevention and treatment of AD.

Objective To evaluate the effect of esketamine combined with distal limb ischemic preconditioning(LIP)for lung protection in elderly patients undergoing thoracoscopic radical surgery for lung cancer.Methods This randomized trial was conducted in 160 patients undergoing elective thoracoscopic surgery for lung cancer,who were randomized into control group(with saline injection and sham LIP),esketamine group,LIP group,and esketamine+LIP group(n=40).Before anesthesia induction,according to the grouping,the patients received an intravenous injection with 0.5 mg/kg esketamine or 10 ml saline(in control group).LIP was induced by applying a tourniquet 1-2 cm above the popliteal fossa in the left lower limb to block the blood flow for 5 min for 3 times at the interval of 5 min,and sham LIP was performed by applying the tourniquet without pressurization for 30 min.Oxygenation index(OI)and alveolar-arterial PO2 difference(A-aDO2)were calculated before induction(T0),at 30 min(T0.5)and 1 h(T1)of one-lung ventilation(OLV),and at 1 h after two-lung ventilation(T3).Serum levels of SP-D,CC-16 and TNF-α were measured by ELISA at T0,T1,T2(2 h of OLV),T3,and 24 h after the operation(T4).The length of hospital stay and postoperative pulmonary complications of the patients were recorded.Results Compared with those in the control group,the patients in the other 3 groups had significantly lower CC-16,SP-D and TNF-α levels,shorter hospital stay,and lower incidences of lung infection and lung atelectasis(all P<0.05).Serum CC-16,SP-D and TNF-α levels,hospital stay,incidences of complications were significantly lower or shorter in the combined treatment group than in esketamine group and LIP group(all P<0.05).Conclusion In elderly patients undergoing thoracoscopic radical surgery for lung cancer,treatment with esketamine combined with LIP can alleviate acute lung injury by enhancing anti-inflammatory response to shorten postoperative hospital stay,reduce lung complications and promote the patients'recovery.