Objective To investigate the abnormal brain activity of first-episode depression by rest-ing state functional magnetic resonance imaging ( fMRI) .Methods Twenty-one adolescent participants diag-nosed with depression(AD) and 18 healthy controls ( HC) were recruited.Resting state fMRI brain scans were performed on all participants.Regional homogeneity ( ReHo) approach was applied to preprocess the fMRI datasets.The value of ReHo maps were obtained in the whole brain.Results ReHo values in the AD group were higher than those in the healthy controls in the right inferior temporal gyrus ( MINI:66,-24,-20) ,left upper cingulate cortex (-27,47,-6) ,frontal polar (-24,59,14) ,after upper left cingulate cortex (-1,-16,35),after the bottom left cingulate cortex (-2,-38,32),left praecuneus (-1,-48,65) com-pared with that in the healthy controls (P<0.05) .ReHo in the AD group decreased in the right middle tempo-ral gyrus (45,-34,32) compared with that in the healthy controls (P<0.05).Conclusion Extensive ReHo abnormalities were found in the brains of patients with first-episode,drug-naive depression,and these abnor-malities in spontaneous neural activity may contribute to the neuropathology of adolescent depression.

Objective To implement and evaluate evidence-based guidelines for enteral nutrition support in acute stroke patients with dysphagia.Methods This study is a prospective before and after comparison study.Collected 200 acute stroke patients with dysphagia and divided them into test group (trained medical staffs) and control group(untrained medical staffs) equally according to the time order.Two groups of 100 patients were surveyed using a checklist before and after implementation of 10 guidelines about nutrition support.Before the implementation of guidelines,the staffs were enforced training,and summarized regularly.Compliances with guidelines by doctors and nurses were compared,and outcomes of patients were assessed.Results Compared with the control group,the correct implementation of the project significantly improved in the experimental group on nutritional risk screening (92.0％,64.0％; x2 =22.840),nutritional supplements selection (80.0％,48.0％; x2 =22.220),nutrition infusion methods (90％,18％ ; x2 =1.040) and nutrition infusion adjustment (abdominal distension/adjusted:21/10,6/4;x2 =9.634,constipation/adjusted:41/40,57/53 ; x2 =5.122,all P ＜ 0.05).The mortality rate,poor prognosis and length of stay in department of neurology intensive care unit and in hospital were not significant different between the experimental group and the control group.The incidence of hospital-acquired pneumonia was significantly lower in the experimental group (44.3％) than that in the control group (67.5％,x2 =7.281,P =0.007),but other patient outcomes were unaffected significantly.Conclusion Implementation of evidence-based guidelines for enteral nutrition support in acute stroke patients with dysphagia is associated with improvements in clinical quality and selected patient outcomes.

Objective:To analyze the clinical, neurophysiological and genetic features of CHRNB1 gene mutations-related congenital myasthenic syndromes (CMS), and to facilitate the recognition and differential diagnosis of this disorder.Methods:The clinical characteristics and laboratory features of the proband in a family with CHRNB1 gene mutations-related CMS were recorded, and the neurophysiological testing and high-throughput sequencing for the proband were performed. In addition, the response to the treatment and prognosis of the proband were reported.Results:The proband is a 16-year-old female who had bilateral eyelid ptosis at the age of 4, presented with limb weakness at the age of 12. Her father has the similar symptoms and other family members are not affected similarly. Serum creatine kinase and thyroid function were normal. Needle electromyography results demonstrated no myopathic disorders. All myasthenia gravis-related antibodies tests including anti-acetylcholine receptor antibody were negative and she failed to respond to pyridostigmine. There was a decremental response of the compound muscular action potential on 5 Hz repetitive nerve stimulation. Brain magnetic resonance imaging and chest CT were unremarkable. The proband was found a heterozygous mutation (c.865G>A (NM_000747)) in CHRNB1 gene exon 8 through high throughput sequencing. She started a 60 mg/d treatment of fluoxetine and showed beneficial response at one-year follow-up.Conclusions:The clinical presentation of CHRNB1 gene mutation-related slow-channel CMS is similar to autoimmune myasthenia gravis, and is likely to be misdiagnosed. High-throughput sequencing accelerates the diagnosis.

Objective To study the effect of rhBNP on serum chemerin and IL-37 levels in acute myocardial infarction (AMI) patients undergoing emergency PCI.Methods Eighty AMI patients who underwent emergency PCI were randomly divided into cortrol group (n =40) and rhBNP treatment group (n=40).The patients in control group were treated with conventional drugs and those in rhBNP treatment group were treated with intravenous rhBNP.Their serum chemerin and IL-37 levels were measured by ELISA.Their LVEDD and LVEF were compared.Results The serum level of chemerin was significantly lower while that of IL-37 was significantly higher in two groups at 72 h and on day 7 after PCI than before PCI (P＜0.05).The serum level of chemerin was significantly lower while that of IL-37 was significantly higher in rhBNP group than in control group at 72 h and on day 7 after PCI (P＜0.05).The LVEDD was significantly shorter while the LVEF was significantly higher in two groups on day 7 and month 1 after PCI than before PCI (P＜0.05).The LVEDD was significantly shorter in rhBNP group than in control group on day 7 and month 1 after PCI (P＜0.05).Conclusion rhBNP can effectively reduce the serum chemerin level,increase the serum IL-37 level,and improve the cardiac function in AMI patients following emergency PCI.The effect of rhBNP is better than that of conventional drugs in AMI patients after emergency PCI.

Objective To summarize the clinical,electrophysiological profile and prognosis in paraneoplastic syndrome with SRY-like high-mobility group superfamily of developmental transcription factors (SOX) 1 antibody.Methods The clinical profile,laboratory examination,electrophysiology,tumor,treatment and prognosis of three patients of paraneoplastic syndrome with SOX1 antibody in Tangdu Hospital,Air Force Military Medical University from 2016 to 2018 were retrospectively analyzed.Results Proximal lower limbs weakness was the first symptom in all the three patients,weakness normally spreading proximally to distally,involving feet and hands,finally reaching the oculobulbar region,and dry mouth was the most common autonomic dysfunction.Compound muscle action potential (CMAP) amplitude was low in all the patients,and the CMAP amplitude became even lower at low stimulating frequencies.An increase in CMAP amplitude with high-frequency stimulation was found in two patients during the follow-up.Lambert-Eaton myasthenic syndrome (LEMS) and motor axonal peripheral neuropathy were considered.Acetylcholine receptors antibody was positive in one case and voltage-gated calcium channel antibody was positive in another case.Two cases were found complicated with small cell lung carcinoma,one case with small cell carcinoma of the esophagus.After treatment of intravenous immunoglobulin,chemotherapy and pyridostigmine,the prognosis of the patients was different.Conclusions SOX1 antibody as an antibody in paraneoplastic syndrome,is most common in small cell lung cancer with LEMS,sometimes with axonal peripheral neuropathy.LEMS needs to be considered when patients manifest proximal limb weakness and dry mouth,and screening for tumors is needed.

Objective:To analyse the clinical features of encephalitis patients with antibodies against the α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid receptor (AMPAR).Methods:Three anti-AMPAR encephalitis patients diagnosed in Tangdu Hospital, the Air Force Military Medical University between January 2020 and May 2021 were retrospectively reviewed. The clinical symptoms, supplementary examination, treatment options and outcomes with knowledge from literature were summarized in this study.Results:Three patients aging from 12 to 70 years presented with symptoms ranging from cognitive impairment, personality change to headache and paralysis. The lung occupying lesion was pathologically proved to be small cell lung cancer in case 1. Antibody to AMPAR (AMPAR-ab) was positive in both blood and cerebrospinal fluid of case 1, with coexisting antibodies against sex-determining region of Y chromosome-related high mobility group box 1 in blood, and the symptoms persisted but did not recur following therapy with corticosteroids. AMPAR-ab was detected only in serum in case 2, with the lesion located in both frontal and temporal lobes, centrum semiovale and lateral ventricle, combined with classic imaging features of intracranial hypotension, and the syndrome was partially improved following treatment with corticosteroids. The lesions were located in the pons and middle cerebellar peduncle, accompanied by cerebellar atrophy in case 3. Spinal cord magnetic resonance imaging showed long hyperintense lesions involving the cervical and thoracic cord, extending from C 2 to Th 10 level on T 2-weighted images. AMPAR-ab was positive in both serum and cerebrospinal fluid. And the symptoms improved significantly following treatment with corticosteroids and intravenous immunoglobulin. Conclusions:The clinical manifestations of anti-AMPAR encephalitis are highly heterogeneous, and brainstem and spinal cord can also be involved in addition to the limbic system, accompanied by brain atrophy. Combining with concurrent antibodies, especially the intracellular antibodies, malignancy needs to be closely monitored; the immunotherapy is effective and the presence of tumor superimposed with multiple antibodies may be associated with poor prognosis.

Objective:To investigate the diagnostic value of neutrophil CD64 index in sepsis patients in intensive care unit (ICU).Methods:A prospective case-control study was conducted, the patients admitted to ICU of Jiangbei People's Hospital Affiliated to Nantong University from December 2016 to June 2020 were enrolled. According to the criteria of Sepsis 3, 107 patients diagnosed with sepsis were classified as the sepsis group, 112 patients without infection were classified as control group. Peripheral venous blood samples were collected within 24 hours after ICU admission, neutrophil CD64 index, C-reactive protein (CRP), procalcitonin (PCT), white blood cell count (WBC) were detected. Receiver operating characteristic curve (ROC curve) was used to evaluate the diagnostic value of neutrophil CD64 index, CRP, PCT and WBC for sepsis.Results:The neutrophil CD64 index, CRP and PCT in sepsis group were significantly higher than those in control group [neutrophil CD64 index: 9.03±5.59 vs. 3.18±1.50, CRP (mg/L): 146.9±68.3 vs. 46.5±35.8, PCT (ng/L): 31.82±14.71 vs. 1.87±1.42, all P < 0.05]. ROC curve analysis showed that neutrophil CD64 index, CRP and PCT had certain diagnostic value for sepsis, the area under ROC curve (AUC) were 0.924, 0.915 and 0.879, respectively, the 95% confidence intervals (95% CI) were 0.871-0.978, 0.855-0.975, 0.807-0.951, respectively, P values were 0.016, 0.017 and 0.026, respectively. Among the three indicators, the diagnostic value of neutrophil CD64 index was much higher. When the optimal cut-off value was 4.32, the sensitivity and specificity were 83.6% and 88.7%, respectively, which were higher than the sensitivity (75.1%, 76.3%) and specificity (87.2%, 82.5%) of CRP and PCT. Conclusion:Neutrophil CD64 index is a valuable biomarker for the diagnosis of sepsis in ICU.

Based on the research of current domestic medical service item and the financial classification policy,combined with the existing problem during the practice,it analyzes the existing problem of financial classification in medical service item cost,and discusses the proposal of nationwide unified mapping between medical service item and their financial classification,the practice path-way of implementation,it can be the valuable reference for hospital's refined financial management and payment reform.

ObjectiveAfter the brain and heart injuries were simulated by myocardial injury caused by acute cerebral ischemia， this study explored the mechanism of Naoxintong capsules in treating brain and heart injuries under cerebral ischemia state with Toll-like receptor （TLR） 2/TLR4 as the breakthrough point. MethodC57BL/6 male mice were randomly assigned into the sham operation， model， Naoxintong， and Ginaton groups. The middle cerebral artery occlusion （MCAO） method was used to establish a mouse model of cerebral ischemia. The neuroethological score， cerebral infarction area， cell apoptosis， ionized calcium-binding adaptor molecule 1 （IBA-1）-positive microglia proportion， and serum levels of N-terminal pro-brain natriuretic peptide （NT-proBNP）， creatine kinase-MB （CK-MB）， and lactic dehydrogenase （LDH） were determined to evaluate the pharmacodynamic effects of Naoxintong capsules on heart and brain injuries after cerebral ischemia in mice. Western blotting was employed to determine the expression of TLR2/TLR4 protein in the brain and heart of mice. ResultCompared with the sham operation group， the model group showed increased cerebral infarction area， neuroethological score， apoptosis rate， IBA-1-positive microglia proportion， and serum levels of NT-proBNP， CK-MB， and LDH （P<0.01）. Naoxintong capsules reduced the cerebral infarction area， neuroethological score， apoptosis rate， IBA-1-positive microglia proportion （P<0.01）， and serum NT-proBNP and CK-MB levels （P<0.05） in mice compared with the model group. Western blotting results showed that Naoxintong Capsules down-regulated the expression levels of TLR2 （P<0.05） in the brain and TLR2 （P<0.01） and TLR4 （P<0.05） in the heart. ConclusionCerebral ischemia can cause myocardial damage， reflecting the pathological process of cardiac injury after cerebral ischemia. Naoxintong capsules can mitigate brain and heart injuries after cerebral ischemia and achieve the simultaneous treatment of the brain and the heart， in which TLR2/TLR4 plays a role.

The goal of this study was to investigate the regulatory effect of angiotensin converting enzyme 2 (ACE2) on cellular inflammation caused by avian infectious bronchitis virus (IBV) and the underlying mechanism of such effect. Vero and DF-1 cells were used as test target to be exposed to recombinant IBV virus (IBV-3ab-Luc). Four different groups were tested: the control group, the infection group[IBV-3ab-Luc, MOI (multiplicity of infection)=1], the ACE2 overexpression group[IBV-3ab Luc+pcDNA3.1(+)-ACE2], and the ACE2-depleted group (IBV-3ab-Luc+siRNA-ACE2). After the cells in the infection group started to show cytopathic indicators, the overall protein and RNA in cell of each group were extracted. real-time quantitative polymerase chain reaction (RT-qPCR) was used to determine the mRNA expression level of the IBV nucleoprotein (IBV-N), glycoprotein 130 (gp130) and cellular interleukin-6 (IL-6). Enzyme linked immunosorbent assay (ELISA) was used to determine the level of IL-6 in cell supernatant. Western blotting was performed to determine the level of ACE2 phosphorylation of janus kinase 2 (JAK2) and signal transducer and activator of transcription 3 (STAT3). We found that ACE2 was successfully overexpressed and depleted in both Vero and DF-1 cells. Secondly, cytopathic indicators were observed in infected Vero cells including rounding, detaching, clumping, and formation of syncytia. These indicators were alleviated in ACE2 overexpression group but exacerbated when ACE2 was depleted. Thirdly, in the infection group, capering with the control group, the expression level of IBV-N, gp130, IL-6 mRNA and increased significantly (P < 0.05), the IL-6 level was significant or extremely significant elevated in cell supernatant (P < 0.05 or P < 0.01); the expression of ACE2 decreased significantly (P < 0.05); protein phosphorylation level of JAK2 and STAT3 increased significantly (P < 0.05). Fourthly, comparing with the infected group, the level of IBV-N mRNA expression in the ACE2 overexpression group had no notable change (P > 0.05), but the expression of gp130 mRNA, IL-6 level and expression of mRNA were elevated (P < 0.05) and the protein phosphorylation level of JAK2 and STAT3 decreased significantly (P < 0.05). In the ACE2-depleted group, there was no notable change in IBV-N (P > 0.05), but the IL-6 level and expression of mRNA increased significantly (P < 0.05) and the phosphorylation level of JAK2 and STAT3 protein decreased slightly (P > 0.05). The results demonstrated for the first time that ACE2 did not affect the replication of IBV in DF-1 cell, but it did contribute to the prevention of the activation of the IL-6/JAK2/STAT3 signaling pathway, resulting in an alleviation of IBV-induced cellular inflammation in Vero and DF-1 cells.
Animals ; Chlorocebus aethiops ; Humans ; Interleukin-6/genetics* ; Janus Kinase 2/pharmacology* ; Infectious bronchitis virus/metabolism* ; STAT3 Transcription Factor/metabolism* ; Angiotensin-Converting Enzyme 2/pharmacology* ; Cytokine Receptor gp130/metabolism* ; Vero Cells ; Signal Transduction ; Inflammation ; RNA, Messenger