Objective To investigate the expression and clinical significance of serum microRNA-144-3p(miR-144-3p)and microRNA-126-3p(miR-126-3p)in patients with intracerebral hemorrhage(ICH).Methods From February 2022 to April 2023,120 ICH patients who underwent treatment at our hospital were recruited as the ICH group.They were separated into a good prognosis group and a poor prognosis group based on the modified Rankin Scale(mRS)score After 6 months treatment Additionally,110 healthy individuals who underwent physical examination at our hospital were included as the control group.Clinical data of patients were collected and analyzed.Enzyme linked immunosorbent assay(ELISA)was applied to detect serum levels of tumor necrosis factor-α(TNF-α)and vascular endothelial growth factor(VEGF)indicators.Real-time fluorescence quantitative polymerase chain reaction(qRT-PCR)was applied to detect the expression levels of serum miR-144-3p and miR-126-3p.Pearson method was applied to analyze the correlation between serum miR-144-3p,miR-126-3p,TNF-α,and VEGF levels in ICH patients.Multivariate Logistic regression was applied to analyze the factors affecting the prognosis of ICH patients.ROC curve was applied to analyze the predictive value of serum miR-144-3p and miR-126-3p for the prognosis of ICH patients.Results In the control group,the serum miR-144-3p was 1.02±0.02,the TNF-α was(19.15±6.79)pg/ml,the VEGF level was(1.05±0.18)ng/ml,and the serum miR-126-3p level was 1.04±0.05.The values in the ICH group were 2.12±0.23,(48.32±8.43)pg/ml,(6.56±1.49)ng/ml,and(0.53±0.12),respectively.There was a statistically significant difference between the two groups(P＜0.05).Pearson analysis results showed that serum miR-144-3p was positively correlated with TNF-α and VEGF levels in ICH patients(r=0.496,0.542,P＜0.05),while serum miR-126-3p was negatively correlated with TNF-α and VEGF levels(r=-0.493,-0.526,P＜0.05).There were significant differences in the serum levels of miR-144-3p,miR-126-3p,TNF-α,VEGF,and NIHSS score between different prognostic groups(P＜0.05).Multivariate logistic analysis revealed that serum miR-144-3p,miR-126-3p,TNF-α,and VEGF were all factors affecting the poor prognosis of ICH patients(P＜0.05).The area under the curve(AUC)of serum miR-144-3p,miR-126-3p,and combined prediction of prognosis in ICH patients was 0.851,0.886,and 0.952,respectively,the combined prediction of the two was more valuable(Zcombination-miR-144-3p=3.371,Zcombination-miR-126-3p=2.791,P＜0.05).Conclusion The expression of miR-144-3p in the serum of ICH patients increases,while the expression of miR-126-3p decreases.The two may serve as biological markers for predicting the prognosis of ICH patients,and the combination of the two is more valuable in predicting the prognosis of ICH patients.

Objective To explore the diagnostic and prognostic values of procalcitonin(PCT),interleukin 6(IL-6)and cystatin C(CysC)combined detection in sepsis acute kidney injury(AKI).Methods A total of 100 patients with sepsis were divided into the AKI group(n=56)and the non AKI group(n=44)according to the occurrence of AKI.The prognosis of AKI patients was followed up,and patients were divided into the survival group(n=32)and the death group(n=24)according to the presence or absence of death.Enzyme-linked immunosorbent assay(ELISA)was used to detect PCT,IL-6 and CysC in different groups of patients.The Acute Physiological Function and Chronic Health Status Score(APACHEⅡ)was used to assess the condition of illness.ROC curve was used to analyze the predictive values of PCT,IL-6 and CysC in the diagnosis and death of sepsis combined with AKI.Results The male ratio,age,hypertension with diabetes ratio,APACHE Ⅱ score,serum creatinine(Scr),PCT,IL-6 and CysC levels were higher in the AKI group than those in the non AKI group,and the ratio of complications and onset time were lower in the AKI group than those in the non AKI group(P＜0.05).The ROC curve results showed that the area under the curve(AUC)of PCT,IL-6,and CysC combined for the diagnosis of sepsis complicated with AKI was 0.859,with a sensitivity of 91.07%and a specificity of 90.91%.The combined diagnostic efficacy was better than that of a single indicator.The APACHE Ⅱ score,PCT,IL-6 and CysC levels were higher in the death group than those in the survival group(P＜0.05).The ROC curve results showed that the AUC,sensitivity and specificity of PCT,IL-6 and CysC combined in predicting mortality in sepsis patients with AKI were 0.847,91.67%and 87.50%,respectively.The combined predictive efficacy was better than that of single indicator.Conclusion The combination of PCT,CysC and IL-6 indicators is more valuable in diagnosing and predicting prognosis of sepsis with AKI.

Objective To explore the diagnostic and prognostic values of procalcitonin(PCT),interleukin 6(IL-6)and cystatin C(CysC)combined detection in sepsis acute kidney injury(AKI).Methods A total of 100 patients with sepsis were divided into the AKI group(n=56)and the non AKI group(n=44)according to the occurrence of AKI.The prognosis of AKI patients was followed up,and patients were divided into the survival group(n=32)and the death group(n=24)according to the presence or absence of death.Enzyme-linked immunosorbent assay(ELISA)was used to detect PCT,IL-6 and CysC in different groups of patients.The Acute Physiological Function and Chronic Health Status Score(APACHEⅡ)was used to assess the condition of illness.ROC curve was used to analyze the predictive values of PCT,IL-6 and CysC in the diagnosis and death of sepsis combined with AKI.Results The male ratio,age,hypertension with diabetes ratio,APACHE Ⅱ score,serum creatinine(Scr),PCT,IL-6 and CysC levels were higher in the AKI group than those in the non AKI group,and the ratio of complications and onset time were lower in the AKI group than those in the non AKI group(P＜0.05).The ROC curve results showed that the area under the curve(AUC)of PCT,IL-6,and CysC combined for the diagnosis of sepsis complicated with AKI was 0.859,with a sensitivity of 91.07%and a specificity of 90.91%.The combined diagnostic efficacy was better than that of a single indicator.The APACHE Ⅱ score,PCT,IL-6 and CysC levels were higher in the death group than those in the survival group(P＜0.05).The ROC curve results showed that the AUC,sensitivity and specificity of PCT,IL-6 and CysC combined in predicting mortality in sepsis patients with AKI were 0.847,91.67%and 87.50%,respectively.The combined predictive efficacy was better than that of single indicator.Conclusion The combination of PCT,CysC and IL-6 indicators is more valuable in diagnosing and predicting prognosis of sepsis with AKI.

Objective To investigate the expression and clinical significance of serum microRNA-144-3p(miR-144-3p)and microRNA-126-3p(miR-126-3p)in patients with intracerebral hemorrhage(ICH).Methods From February 2022 to April 2023,120 ICH patients who underwent treatment at our hospital were recruited as the ICH group.They were separated into a good prognosis group and a poor prognosis group based on the modified Rankin Scale(mRS)score After 6 months treatment Additionally,110 healthy individuals who underwent physical examination at our hospital were included as the control group.Clinical data of patients were collected and analyzed.Enzyme linked immunosorbent assay(ELISA)was applied to detect serum levels of tumor necrosis factor-α(TNF-α)and vascular endothelial growth factor(VEGF)indicators.Real-time fluorescence quantitative polymerase chain reaction(qRT-PCR)was applied to detect the expression levels of serum miR-144-3p and miR-126-3p.Pearson method was applied to analyze the correlation between serum miR-144-3p,miR-126-3p,TNF-α,and VEGF levels in ICH patients.Multivariate Logistic regression was applied to analyze the factors affecting the prognosis of ICH patients.ROC curve was applied to analyze the predictive value of serum miR-144-3p and miR-126-3p for the prognosis of ICH patients.Results In the control group,the serum miR-144-3p was 1.02±0.02,the TNF-α was(19.15±6.79)pg/ml,the VEGF level was(1.05±0.18)ng/ml,and the serum miR-126-3p level was 1.04±0.05.The values in the ICH group were 2.12±0.23,(48.32±8.43)pg/ml,(6.56±1.49)ng/ml,and(0.53±0.12),respectively.There was a statistically significant difference between the two groups(P＜0.05).Pearson analysis results showed that serum miR-144-3p was positively correlated with TNF-α and VEGF levels in ICH patients(r=0.496,0.542,P＜0.05),while serum miR-126-3p was negatively correlated with TNF-α and VEGF levels(r=-0.493,-0.526,P＜0.05).There were significant differences in the serum levels of miR-144-3p,miR-126-3p,TNF-α,VEGF,and NIHSS score between different prognostic groups(P＜0.05).Multivariate logistic analysis revealed that serum miR-144-3p,miR-126-3p,TNF-α,and VEGF were all factors affecting the poor prognosis of ICH patients(P＜0.05).The area under the curve(AUC)of serum miR-144-3p,miR-126-3p,and combined prediction of prognosis in ICH patients was 0.851,0.886,and 0.952,respectively,the combined prediction of the two was more valuable(Zcombination-miR-144-3p=3.371,Zcombination-miR-126-3p=2.791,P＜0.05).Conclusion The expression of miR-144-3p in the serum of ICH patients increases,while the expression of miR-126-3p decreases.The two may serve as biological markers for predicting the prognosis of ICH patients,and the combination of the two is more valuable in predicting the prognosis of ICH patients.

Aldosterone is a kind of steroid hormone produced by the zona glomerulosa(ZG)cells of the adre-nal cortex which plays a crucial regulatory role in fluid-electrolyte balance and blood pressure stability.Aldo-sterone biosynthesis is a calcium-dependent process,and ion channels play a key role in this process.Primary aldosteronism is closely related to mutations in ion channels.Recent studies have highlighted an intriguing rela-tionship between the unique rosette structure of ZG cells and their electrical excitability.Elucidating the con-nection between rosettes and ZG cell electrical excitability as well as aldosterone secretion leads to a deeper un-derstanding of the mechanisms regulating aldosterone secretion and may provide new insights into the pathogen-esis of primary aldosteronism.

The family of voltage-gated potassium Kv2 channels consists of the Kv2.1 and Kv2.2 subtypes. Kv2.1 is constitutively highly phosphorylated in neurons and its function relies on its phosphorylation state. Whether the function of Kv2.2 is also dependent on its phosphorylation state remains unknown. Here, we investigated whether Kv2.2 channels can be phosphorylated by protein kinase C (PKC) and examined the effects of PKC-induced phosphorylation on their activity and function. Activation of PKC inhibited Kv2.2 currents and altered their steady-state activation in HEK293 cells. Point mutations and specific antibodies against phosphorylated S481 or S488 demonstrated the importance of these residues for the PKC-dependent modulation of Kv2.2. In layer II pyramidal neurons in cortical slices, activation of PKC similarly regulated native Kv2.2 channels and simultaneously reduced the frequency of action potentials. In conclusion, this study provides the first evidence to our knowledge that PKC-induced phosphorylation of the Kv2.2 channel controls the excitability of cortical pyramidal neurons.
Action Potentials ; HEK293 Cells ; Humans ; Protein Kinase C/metabolism* ; Pyramidal Cells/enzymology* ; Shab Potassium Channels/genetics*

Objective:The investigation and research on the application status of Hepatic Venous Pressure Gradient (HVPG) is very important to understand the real situation and future development of this technology in China.Methods:This study comprehensively investigated the basic situation of HVPG technology in China, including hospital distribution, hospital level, annual number of cases, catheters used, average cost, indications and existing problems.Results:According to the survey, there were 70 hospitals in China carrying out HVPG technology in 2021, distributed in 28 provinces (autonomous regions and municipalities directly under the central Government). A total of 4 398 cases of HVPG were performed in all the surveyed hospitals in 2021, of which 2 291 cases (52.1%) were tested by HVPG alone. The average cost of HVPG detection was (5 617.2±2 079.4) yuan. 96.3% of the teams completed HVPG detection with balloon method, and most of the teams used thrombectomy balloon catheter (80.3%).Conclusion:Through this investigation, the status of domestic clinical application of HVPG has been clarified, and it has been confirmed that many domestic medical institutions have mastered this technology, but it still needs to continue to promote and popularize HVPG technology in the future.

Objective:To investigate the effects of human umbilical cord mesenchymal stem cell-derived exosome (hucMSC-ex) on proliferation, migration, apoptosis and autophagy in ischemia-anoxia neurons, and to provide a theoretical study for clinical research on stroke.Methods:Primary glial cells were cultured and OGD model was established. Then, these cells were incubated with huMSC-exosome. The inhibition rate of proliferation was detected by MTT assay. Apoptosis was observed by flow cytometry. The expressions of apoptosis related proteins were confirmed by RT-PCR and Western blot. The expressions of autophagy related proteins and PI3K/Akt signal were observed by Western blot. The data were analyzed using SPSS 17.0 software, multiple-group comparisons were performed using one-way ANOVA, and SNK- q test was used for pairwise comparison between groups. Results:MTT assay showed that OGD could inhibit cell proliferation of primary glial cells. After incubation with hucMSC-ex for 2 h, the inhibition rate of cell proliferation was lower than that of the control. The flow cytometry technology showed that hucMSC-ex reduced cell apoptosis. The cell migration experiments showed that OGD reduced cell migration capacity, but cell migration increased after exosomal incubation. RT-PCT and Western blot showed that OGD induced autophagy and apoptosis, hucMSC-ex activated PI3K/Akt signaling pathway, inhibited the expression of Bax and Caspase-3 (both P<0.05), and promoted the expression of Bcl-2 ( P<0.05). hucMSC-ex inhibited the expression of Beclin-1, Atg3 and LC3-Ⅱ(al l P<0.01). Conclusions:huMSC-exosome promote the proliferation and migration in ischemia-anoxia-injured neurons and inhibit the apoptosis and autophagy. The mechanism that hucMSC-ex repaired the injured nerve cells might be associated with PI3K/Akt signaling pathway.

Objective To investigate the application of ultrasonic examination for patients with liver cirrhosis after transjugular intrahepatic portosystemic shunt (TIPS) in the stents in artificial channel (SIAC) and portal vein (PV).Methods The clinical data of 28 patients who were admitted into our hospital from January 2013 to February 2017 and received TIPS were analyzed.Scanned the stents in artificial channel and portal vein and their inner diameter through transabdominal probe,and then measured the blood flow velocity by doppler.ResultsAfter TIPS,the SIAC of cirrhosis patients showed parallel tubular high echo,smooth wall and clear vessel lumen.And the inner diameter of SIAC was (5.93±0.76)mm,the blood flow velocity was (97.14±28.46)cm/s,and the 95% reference value was 4.45 mm~7.41 mm and 41.36~152.92 cm/s respectively.And the inner diameter of PV was (12.40 mm±2.90)mm,the blood flow velocity was (38.33 cm±16.01)cm/s,and the 95% reference value was 6.72~18.08 mm and 22.32~49.34 cm/s respectively.Conclusion Ultrasonography can give objective evaluation of whether SIAC and PV is unobstructed after TIPS,and it can get their parameters of inner diameter and velocity.As a result, ultrasonography can be regard as a perfect means for follow-up checkup.

[ABSTRACT]OBJECTIVETo evaluate the curative effect of endoscopic sinus surgery from the viewpoint of biomechanics analysis.METHODSWe select one case undergoing nasal endoscopic surgery for chronic sinusitis patients, after half year follow-up and collect preoperative and postoperative spiral CT data to build a numerical model of nasal cavity and paranasal sinuses with computer numerical simulation (CFD) research methods, to explore nasal airflow distribution and flow field characteristics of value changes before and after the operation. Patients undergo subjective assessments: nasal obstruction of VAS score, olfactory VAS score, SNOT-20, objective assessment: Lund Kennedy score, Lund Mackay score, saccharin test time and acquisition clinical efficacy data to verify the credibility of the analysis method is feasible and the results. RESULTSThe nasal resistance after endoscopic sinus surgery in nasal cavity and paranasal sinuses numerical simulation decreased, middle meatus of nose and nasal air flow velocity decreased, the pressure change slightly;nasal threshold region, middle turbinate head end section in maxillary sinus ostium section, after nearly sieve horizontal cross-section average velocity decreased, nasal airflow for the mucosa of the shear stress reduced. The volume of the nasal cavity and the area of the mucosa was increased, the volume ratio was decreased, the subjective and subjective assessment of the patients was improved, and the objective assessment was lighten.CONCLUSIONAerodynamic rules are presented through the calculation of numerical simulation of fluid mechanics which is invisible before. Better understanding of changes in the nasal airflow distribution and the changes of flow field characteristics can be useful to establish nasal endoscopic surgery in numerical analysis of offshore platform,which provides a new research tool for the understanding of the pathophysiology of chronic sinusitis by endoscopic sinus surgery.