AIM:To investigate the impact of hippocampal protein phosphatase 1 regulator subunit 17(Ppp1r17)down-regulation on drinking-related behavior in mice,and to explore the protein kinase B(PKB/AKT)/glyco-gen synthase kinase-3β(GSK-3β)/cAMP response element binding protein(CREB)signaling pathway of Ppp1r17 in the development of alcohol dependence.METHODS:Forty male C57BL/6J mice were randomly divided into four groups(n=10):control group,shPpp1r17① group,shPpp1r17② group and shPpp1r17③ group.The mRNA and protein expression levels in the hippocampal tissues were evaluated after 3 weeks of AAV-shPpp1r17 injection.Twenty male C57BL/6J mice were randomly divided into a control group and a shPpp1r17 group(n=10).An open-field test,conditioned place prefer-ence(CPP)test and righting reflex test were performed.Furthermore,the localization and expression of AAV-shPpp1r17 were detected after 3 weeks of AAV-shPpp1r17 injection.Twenty male C57BL/6J mice were randomly divided into four groups(n=5):the empty virus+water group,the empty virus+EtOH group,the shPpp1r17+water group and the shPpp1r17+EtOH group.The EtOH group mice drank 9%alcohol continuously for 30 d.The protein expression levels of Ppp1r17,p-AKT,AKT,p-GSK-3β,GSK-3β,p-CREB and CREB were detected by Western blot.RESULTS:(1)The results of qPCR showed that Ppp1r17 was successfully suppressed by shPpp1r17.(2)The behavioral results showed that the shPpp1r17 group mice exhibited enhanced exercise ability and reduced anxiety-like emotions,and the downregulation of Ppp1r17 increased CPP scores and reduced the sensitivity of the mice to alcohol.(3)Immunofluorescence showed that AAV-shPpp1r17 was specifically expressed in the hippocampus.(4)Western blot analysis revealed that Ppp1r17 and the p-AKT/AKT,p-GSK-3β/GSK-3β and p-CREB/CREB ratios were significantly increased after treatment of EtOH.Howev-er,the protein expression of Ppp1r17 was significantly reduced,and the AKT/GSK-3β/CREB pathway was activated after knockdown of Ppp1r17 in the hippocampus.CONCLUSION:Ppp1r17 may suppress CREB phosphorylation through the AKT/GSK-3β/CREB pathway,thereby influencing alcohol drinking preference and locomotor behavior in mice.

Objective We investigated the effects of ICAM5 in the hippocampus on the alcohol drinking preference of mice,and the potential mechanisms.Methods An alcohol two-bottle choice model was developed in 8-week-old male C57BL/6J mice,which were randomly divided to two groups:water group and alcohol group.The protein expression of ICAM5 in the hippocampus,amygdala,and medial prefrontal cortex was detected.An ICAM5-overexpressing adeno-associated virus was constructed and injected into the hippocampus by stereotaxic method.The expression level of ICAM5 protein in the hippocampus was detected by immunofluorescence and Western blot.We then detected the alcohol preference and locomotor activity of mice with a conditioned place preference(CPP)experiment,open field test,and loss-of-righting reflex test.Western blot analysis was used to identify the neuron F-actin/G-actin ratio.Using Golgi staining,the morphology of dendritic spines was identified.Results The expression of ICAM5 in the hippocampus of alcohol two-bottle choice model mice in the alcohol group was considerably lower than that of the water group(P＜0.001).The specific expression of ICAM5 in the hippocampus of mice was observed by fluorescence microscopy.In the open field experiment,the staying time and moving distance of the AAV-ICAM5 group were significantly increased compared with those of the control group(P＜0.01).In the CPP experiment,the residence time of AAV-ICAM5 mice in the alcohol-paired compartment was significantly lower than that of control mice(P＜0.001).In the loss-of-righting reflex experiment,overexpression of ICAM5 significantly reduced sedation latency(P＜0.01),but significantly shortened the duration of sedation(P＜0.001).Compared with AAV-mCherry+Water group,the ratio of F-actin/G-actin in the hippocampus was significantly increased after drinking(P＜0.01),but after ICAM5 overexpression,their F-actin/G-actin ratio was significantly decreased(P＜0.001).Compared with AAV-mCherry+Water group,the density of dendritic spines in the hippocampal CAI region was increased(P＜0.001),but the density of dendritic spines in the AAV-ICAM5+Alcohol group was significantly decreased(P＜0.01).Conclusions ICAM5 modulated the expression of cytoskeleton proteins to change the structural plasticity of dendritic spines,which contributed to alcohol-drinking and locomotor behavioral changes in mice.

Objective To study the effects of the intelligent hearing-assistive system incorporated in Nuro-tron cochlear implants(CI),including the autonomic acoustic scene recognition(ASR),intelligent strategy config-uration as well as the objective and subjective hearing improvements on recipients.Methods ① To evaluate the per-formance of the ASR matule,in a sound-proof room,the preset five kinds of test audios,including speech,noise,speech in noise,pure music(without human voice)and non-pure Music(with human voice)were played.Each type of scenes included 6 to 9 5 min test files.The prediction accuracy and scene switching times were calculated.② In order to evaluate the noise-reduction performance of the ABeam technology in the speech enhancement module,13 Nurotron? CI recipients were recruited and their speech recognition rate when ABeam was"ON"and"OFF"with noise coming from 90°,180°or 270°were tested,individually.Also,their subjective hearing feedback was evaluated through visual analogue scale(VAS)evaluation.Results The ASR module achieved high prediction performance,with prediction accuracy 99％±4％,96％±9％,94％±12％,94％±15％,92％±13％for speech,noise,noisy speech,pure music and non-pure music,respectively.The scene transation times for each individual scene were 1.1 ±0.3,1.4±0.7,1.3±0.5,1.4±0.8 and 1.3±0.5,indicating that the prediction was also stable.When noise came from the sides and behind of recipients and speech signal from the front,the adaptive dual microphone noise re-duction algorithm ABeam significantly increased the speech recognition score(SRS)in 5 dB signal-to-noise(SNR)environment(P＜0.001),with an average increase of 15.92％.Especially when the noise came from 180 degree backward,the SRS increased 28.68％when ABeam was"0N",which was significantly higher than when ABeam was"OFF"(P＜0.01).Conclusion The intelligent hearing-assistive system can help CI recipients automatically configure appropriate SPSs under different environments,improving the speech intelligibility and hearing comfort.

Objective:To investigate ability of HCA587/MAGE-C2 protein combined with different adjuvants inducing antigen-specific immune response and antitumor effects in mice model.Methods:C57BL/6J mice were immunized with HCA587 protein com-bined with Freund's complete adjuvant(CFA)/Freund's incomplete adjuvant(IFA)and different doses of CpG ODN 1826(CpG),cellular and humoral immunity levels induced by different schemes were compared.ELISpot was used to evaluate frequency of IFN-γ-producing splenocytes.HCA587-specific antibodies were detected by ELISA.Intracellular cytokine staining(ICCS)analysis was mea-sured by flow cytometry.A tumor-bearing animal model was created by subcutaneously injection of B16-HCA587 tumor cells into right flank of C57BL/6J mice,which was treated with strategy with the strongest cellular and humoral immune response in immune compari-son protocol.Vernier calipers were used to measure tumor volume,and Log-rank test was used to analyze survival curve.Results:HCA587 protein combined with CFA and 50 μg CpG elicited strongest specific IFN-γ-secreting splenocytes and anti-HCA587 anti-bodies,which induced highest IFN-γ+CD4+T cells(P<0.05).In tumor treatment model,HCA587 protein combined with CFA and 50 μg CpG significantly inhibited tumor growth(P=0.026),while Log-rank test showed no significant effect on survival(P>0.05).Conclusion:HCA587 protein vaccine formulated with CFA and 50 μg CpG causes a significant cellular and humoral immune response and partial antitumor effect in mice model,providing new experimental data for preclinical research of tumor antigen protein vaccine.

Objective:To investigate the role of serum CX3CR1 in the diagnosis of coronary artery stenosis and in the evaluation of prognosis after percutaneous coronary intervention.Methods:A total of 101 patients with coronary artery stenosis (≥ 50% stenosis) confirmed with coronary angiography (CAG) in Haiyang People's Hospital from January 2018 to May 2019 who were followed up till May 2021 were included in the observation group. Thirty-four healthy individuals who underwent physical examination during the same period were included in the control group. Patients in the observation group were divided into an in-stent restenosis group (ISR group, n = 28) and a non-ISR group ( n = 73). The expression of CX3CR1 was detected. The incidence of adverse cardiac events was calculated. The sensitivity, specificity, and area under the curve (AUC) plotted for the use of CX3CR1 to diagnose coronary artery stenosis and predict adverse cardiac events were evaluated. Results:The expression of CX3CR1 in the observation group was (3.95 ± 1.05) μg/L, which was significantly higher than (2.30 ± 0.65) μg/L in the control group ( t = 2.87, P < 0.05). The receiver operating characteristic curve analysis showed that the AUC, sensitivity, and specificity of the use of CX3CR1 in diagnosing coronary artery stenosis were 0.892, 75.2%, and 88.2%. The incidence of non-fatal myocardial infarction, angina pectoris, heart failure, and cardiac death in the ISR group was significantly higher compared with the non-ISR group ( χ2 = 8.06, 7.17, 8.06, 7.17, all P < 0.05). The receiver operating characteristic curve analysis results showed that the AUC value of CX3CR1 in predicting non-fatal myocardial infarction, angina pectoris, heart failure, and cardiac death were 0.786, 0.895, 0.997, and 0.887, respectively. Conclusion:CX3CR1 is highly expressed in coronary artery stenosis, which can provide a reference for the diagnosis and prognostic evaluation of coronary artery stenosis.

Objective:To survey the status quo of clinical teaching by specialists in general practice residents training.Methods:Thirty-four general practice residents (14 males and 20 females, aged (27.9±1.8) years) who started standardized training in 2016, 2017 and 2019 in the First Affiliated Hospital of Zhejiang University School of Medicine were selected for interview. The semi-structured and open-ended telephone interviews were conducted 6 months after their completion of residency training. The 1st round of interviews with 12 residents of 2016 and 2017 batches was conducted in March 2020 and 2021 to understand their feelings and suggestions about specialty learning. Based on the interview results, literature review, expert consultation and internal discussion, a new model for specialty teaching was developed and applied for subsequent residency training. The second round of interviews was conducted with 22 residents of 2019 batch on March 2023 to investigate the implementation of the new model.Results:In the first round of interviews, 6 participants felt that the learning of specialty knowledge was not comprehensive enough; although all respondents said that they had received simulator training for the final exam in the specialty rotation, 2 people felt that it was not comprehensive and 2 mentioned that some of the items were not practised on a real person; all 12 respondents felt that there was a certain gap between the types of diseases they encountered in the specialty learning and the real world of work; 10 respondents mentioned that there was insufficient training in the management of chronic non-chronic diseases; 7 out of 9 respondents from primary care institutions mentioned that it was difficult to apply the learned specialty knowledge to real work due to local conditions; 7 respondents mentioned that the content and methods of teaching were inconsistent among different lecturers; and respondents hoped that the surgical training, physical exam training, medication instruction, and the length of outpatient follow-up consultations would be strengthened. In the second round of interviews, the feedback of respondents was more positive than in the first round, there were still problems with the separation of teaching and examination content, and insufficient practical training of skills; 2 respondents from general hospitals mentioned that the teaching of specialties should be further deepened, and 3 respondents from the primary care institutions mentioned that the teaching of treatment and follow-up management should be further strengthened. Twenty-one respondents generally accepted the new specialty teaching model, but said that there were big differences between teachers of different specialties and there were still problems such as insufficient guidance on drug treatment and follow-up.Conclusion:In general practice, residency training specialist teaching does not fully meet the requirements of the actual work of general practitioners, and although it has improved after optimization, there is still much room for improvement.

The review summarizes the kidney protective mechanism of sodium-glucose-coupled transporter 2 inhibitors and their efficacy and safety for diabetic recipients of kidney transplantation.It is intended to improve patient outcomes.

Objective:To analyze clinical characteristics of neurosyphilis patients with abnormal mental behaviors as the initial symptom, and to provide a reference for clinical classification of, as well as outcome prediction and efficacy monitoring in neurosyphilis.Methods:Clinical data were collected from 67 HIV-negative neurosyphilis patients with abnormal mental behaviors as the initial symptom in the Second Affiliated Hospital of Soochow University from November 2012 to November 2019, and retrospectively analyzed. Statistical analysis was carried out by using t test. Results:Among the 67 patients, 52 (77.6%) were males, and 15 (22.4%) were females; there were 63 (94.0%) middle-aged and elderly patients and 4 (6.0%) adolescent patients; 38 (56.7%) patients were diagnosed with progressive general paresis, 21 (31.3%) with meningovascular neurosyphilis, 1 (1.5%) with meningeal neurosyphilis, 3 (4.5%) with tabes dorsalis, and 4 (6.0%) with mixed-type neurosyphilis. As laboratory examination showed, 67 patients all presented with positive serum rapid plasma reagin (RPR) test, serum Treponema pallidum particle agglutination (TPPA) test, and cerebrospinal fluid TPPA test, 55 (82.1%) had positive cerebrospinal fluid RPR test, 47 (70.1%) had elevated cerebrospinal fluid protein levels of > 0.45 g/L, 50 (74.6%) had increased white blood cell counts of > 8 ×10 6/L in cerebrospinal fluids, and 28 (41.8%) had elevated IgG levels in cerebrospinal fluids. Magnetic resonance imaging of the brain revealed multiple ischemic foci in 21 (31.3%) cases, multiple leukodystrophy in 17 (25.4%) , cerebral atrophy in 15 (22.4%) , infarction in 8 (11.9%) , and encephalitis-like changes in 2 (3.0%) . Of the 67 patients, 48 were treated with penicillin in aqueous solutions, 15 with ceftriaxone, and 4 with doxycycline. Six months later, the follow-up showed that 46 (68.7%) patients responded to the treatment, and the early course of disease was significantly shorter in the highly responsive group than in the poorly responsive group ( P < 0.05) . Conclusion:The middle-aged and elderly males were predominant in the neurosyphilis patients with abnormal mental behaviors as the initial symptom, magnetic resonance imaging is helpful for clinical classification and prognosis prediction of neurosyphilis, and early and standardized antisyphilitic treatment can markedly improve the prognosis of patients.

Background and Objectives: Psoriasis is a chronic inflammatory skin disease, which the mechanisms behind its initiation and development are related to many factors. DMSCs (dermal mesenchymal stem cells) represent an important member of the skin microenvironment and play an important role in the surrounding environment and in neighbouring cells, but they are also affected by the microenvironment. We studied the glucose metabolism of DMSCs in psoriasis patients and a control group to reveal the relationship among glucose metabolism, cell proliferation activity，and VEC (vascular endothelial cell) differentiation in vitro, we demonstrated the biological activity and molecular mechanisms of DMSCs in psoriasis. Methods: and Results: We found that the OCR of DMSCs in psoriatic lesions was higher than that in the control group, and mRNA of GLUT1 and HK2 were up-regulated compared with the control group. The proliferative activity of DMSCs in psoriasis was reduced at an early stage, and mRNA involved in proliferation, JUNB and FOS were expressed at lower levels than those in the control group. The number of blood vessels in psoriatic lesions was significantly higher than that in the control group (p＜0.05), which the mRNA of VEC differentiation, CXCL12, CXCR7, HEYL and RGS5 tended to be increased in psoriatic lesions compared to the control group, in addition to Notch3. Conclusions We speculated that DMSCs affected local psoriatic blood vessels through glucose metabolism, and the differentiation of VECs, which resulted in the pathophysiological process of psoriasis.

Objective: To evaluate the efficacy of allogeneic hematopoietic stem cell transplantation (allo-HSCT) from different donors as first-line treatment for children and adolescents with severe aplastic anemia (SAA) . Methods: The clinical data of 79 children and adolescents with SAA diagnosed from January 2013 to December 2016 in Henan Province were retrospectively analyzed. There were 50 males and 29 females, with a median age of 14(4-18) years. 40 cases received matched sibling transplantation (MSD-HSCT), 17 with unrelated donor transplantation (UD-HSCT), and 22 with haploidentical transplantation (haplo-HSCT). Results: The comparison of MSD-HSCT, UD-HSCT, haplo-HSCT groups was conducted and the median times of neutrophils engraftment were statistically significant [12(9-25) d, 14(10-22) d, 16(11-26) d, respectively (χ²=13.302, P=0.001)], but no difference in+30 d engraftment rate [97.3%(36/37), 100%(15/15), 100%(20/20), χ²=0.959, P=0.619]. The median times of PLT engraftment were not statistically significant [14(6-34)d, 16(7-32)d, 19(10-34)d, respectively, χ²=5.892, P=0.053], and the +30 d engraftment rate had no difference [97.3%(36/37), 100%(15/15), 100%(20/20), χ²=0.959, P=0.619]. The post-transplant infection rate showed no statistically significance [35.0% (14/40), 29.4% (5/17), 45.5% (10/22), χ²=1.158, P=0.560], as well as the incidences of aGVHD, grade III/IV aGVHD and cGVHD(χ²=0.230, P=0.891; χ²=2.628, P=0.269; χ²=3.187, P=0.203). The two-years OS rate was not statistically significant respectively [(77.1±6.7)%, (70.6±11.1)%, (77.3±8.9)%, χ²=0.330, P=0.845]. Severe post-transplant infection (RR=4.617, P=0.009), grade Ⅲ/Ⅳ aGVHD (RR=2.707, P=0.048) were independent risk factors for OS. Conclusion The overall efficacy of MSD-HSCT, UD-HSCT and haplo-HSCT as first-line therapy for children and adolescents with SAA/VSAA is comparable.