Objective:To characterize the biological activity of fibroblasts on the surface of titanium alloy sheets with different ridge widths by investigating the effects of ridge widths on the adhesion, proliferation and differentiation of fibroblasts.Methods:Five groups of titanium sheets with ridge widths of 50 μm, 80 μm, 100 μm, 150 μm and 200 μm were prepared, with all the groove depths being 10 μm. The titanium sheets with no ridges were taken as a control group. After fibroblasts were incubated on the sheets, states of their adhesion were observed by scanning electron microscopy (SEM) at different time points. CCK-8 cell proliferation test and immunofluorescence staining were used to observe proliferation and shape of the cells. The effects of ridge widths on adhesion of fibroblasts were evaluated by Vinculin immunofluorescence staining, and the effects of ridge widths on expression of α-smooth muscle actin ( α-SMA) by immunofluorescence. Results:SEM showed that the cells adhered to the ridges on the titanium sheets 48 hours after inoculation. In the groups with smaller ridge widths (from 50 μm to 150 μm), the cells were slender in shape and grew along the ridge direction. CCK-8 indicated that different ridge widths had no significant effect on the proliferation of fibroblasts between the 6 groups ( P>0.05). Immunofluorescence staining showed that the cells arranged in an orderly direction along the ridges; the long axis of the cells in the 50 μm group showed the best consistency with the extending direction of the ridge, with significant differences among the 6 groups ( P<0.05). The Vinculin test found that the secretion of cell adhesion protein was concentrated in the ridge and semi-quantitative analysis showed that the 50 μm group had the most Vinculin secretion, with significant differences among the 6 groups ( P<0.05). The α-SMA test showed that the ridge width had a regulatory effect on the myogenic differentiation of fibroblasts, and the 50 μm group had the strongest expression of α-SMA, with significant differences among the 6 groups ( P<0.05). Conclusions:Modification of ridges on the surface of titanium sheets may affect arrangement, adhesion and myogenic differentiation of fibroblasts. The ridges of 50 μm in width may lead to stronger polarized arrangement of fibroblasts, more secretion of adhesion-related protein and more pronounced myogenic differentiation of fibroblasts.

Objective To investigate the relationship between dyslipidemia and nephrolithiasis in a population-based study.Methods All participants were investigated by questionnaires,physical examinations and laboratory tests including liver and renal function,lipid profile,serum fasting glucose,glycosylated hemoglobin.Nephrolithiasis was diagnosed by kidney Bultrasonography.Subjects with estimated glomerular filtration rate (eGFR) ＜ 60 ml · min-1 · (1.73 m2)-1were excluded.Results 10 316 individuals were enrolled with an average age of (54.88 ± 10.27) years (range 17-88 years) and the ratio of male to female 1:1.12.The prevalence of nephrolithiasis was 5.6％,3.7％ and 7.8％ for whole population,women and men,respectively.In women,only eGFR in stone group was significantly lower than that in non-stone group (P ＜ 0.05).However,participants in stone group were significantly older (P ＜ 0.05),of higher blood pressure (P ＜ 0.01),higher serum uric acid (P ＜ 0.01),worse renal function (serum creatinine,P ＜ 0.05;eGFR,P ＜ 0.01),and higher low-density lipoprotein (LDL) (P ＜ 0.05),compared with those in non-stone group in men.Logistic regression analysis showed that only eGFR (P ＜ 0.05) was the independent influential factor for kidney stones in women;In men,LDL was an independent influential factor for nephrolithiasis with a hazard ratio of 1.149 (95％CI 1.003-1.317,P ＜ 0.05),except for mean blood pressure and eGFR.After being divided into normal group,borderline high group and high LDL group according to the LDL level,with the increase of LDL,the prevalence of nephrolithiasis was significantly increased by 7.3％,8.3％ and 10.6％ in men respectively.There was no significant relationship between total cholesterol,triglyceride,high-density lipoprotein and nephrolithiasis.Conclusions Dyslipidemia is associated with nephrolithiasis in men,and high LDL cholesterol is an independent risk factor for nephrolithiasis.Clinical lipid testing not only helps to reduce the risk of atherosclerotic disease,but also reduces the risk of kidney stones.

Phytochemical studies on the fruits of Eucalyptus globulus led to the isolation of twelve compounds. The structures of these compounds were elucidated as: ellagic acid(1), 3-O-methylellagic acid 4′-O-α-rhamnopyranoside(2), valoneic acid dilactone(3), isobiflorin(4), biflorin(5), 8-β-C-glucopyranosyl-5, 7-dihydroxy-2-isobutylchromone(6), 8-β-C-glucopyranosyl-5, 7-dihydroxy-2-isopropylchromone(7), quercetin 3-O-β-D-glucopyranoside(8), quercetin 3-O-β-D-glucuronide-6″-methyl ester(9), (+)-lyoniresin-4-yl β-D-glucopyranoside(10), cypellocarpins A(11), and eucaglobulin 1(12), by means of spectroscopic analyses(ESI-MS, 1H NMR and 13C NMR). Compounds 3-10 were isolated from this plant for the first time.

To investigate the strain composition and drug resistance characteristics of G +(Gram positive cocci) cocci causing bloodstream infections in the People′s Hospital of Inner Mongolia Autonomous Region in recent years and provide a basis for the empirical and rational use of drugs for the prevention and treatment of bloodstream infections caused by G +cocci. The strain composition and drug-resistant characteristics of G +cocci isolated from positive blood culture specimens sent to various departments of the Inner Mongolia Autonomous Region People′s Hospital from January 2015 to December 2022 were retrospectively analyzed, and the higher detection rates of Staphylococcus hominis and Staphylococcus epidermidis, Enterococcus faecium and Enterococcus faecalis, and methicillin-resistant Staphylococcus aureus (MRSA) and methicillin-sensitive Staphylococcus aureus (MSSA) were examined. MRSA and methicillin-sensitive Staphylococcus aureus (MSSA) were comparatively analyzed for resistance. The resistance data were analyzed by Whonet 5.6 statistical software, the significance of difference was analyzed by SPSS 22.0 software, and the resistance rate was compared by χ2 test. The results showed that 1 209 strains of G +cocci, in terms of the composition ratio, from high to low, were mainly human staphylococci (32.5%,393/1 209), Staphylococcus epidermidis (27.8%, 336/1 209), Staphylococcus aureus (14.9%,180/1 209) and Enterococcus faecalis (10.6%, 128/1 209). Among them, the detection rate of methicillin-resistant Staphylococcus aureus (MRSA) (42.8%, 77/180) was lower than that of methicillin-resistant coagulase-negative staphylococcus (MRCNS) (71.5%, 608/850); and among enterococci, the detection rate of Enterococcus faecalis (71.5%, 128/179) was much higher than that of Enterococcus faecalis (28.5%, 51/179). For drug resistance, the resistance rate to five commonly used antimicrobial drugs, ciprofloxacin, levofloxacin, moxifloxacin, clindamycin and tetracycline, was higher in Staphylococcus hominis than in Staphylococcus epidermidis ( χ2=7.152-64.080, P<0.05); however, for the aminoglycoside antimicrobial drug gentamicin, the rate of resistance in Staphylococcus humanus was lower than in Staphylococcus epidermidis, and the difference was statistically significant ( χ2=11.895, P<0.05); no strains resistant to linezolid and vancomycin were found in both. Comparison of the resistance rates to seven antimicrobial drugs, gentamicin, rifampicin, ciprofloxacin, levofloxacin, moxifloxacin, clindamycin and tetracycline, was significantly higher in MRSA than in MSSA ( χ2=6.169-56.941, P<0.05); however, the resistance rate to cotrimoxazole, MRSA (15.6%, 12/77) was significantly lower than that of MSSA (35.3%, 36/102), and the difference was statistically significant ( χ2=5.155, P<0.05); MRSA and MSSA resistant to linezolid and vancomycin were not found. The resistance rate of Enterococcus faecalis to penicillin G and ampicillin was much higher than that of Enterococcus faecalis, and the difference was statistically significant ( χ2=22.965, P<0.05), and vancomycin-resistant enterococci (VRE) were not found. In conclusion, for staphylococci, except for individual antibiotics, S.hominis and MRSA were more resistant to most antimicrobial drugs than S. epidermidis and MSSA, showing a multidrug-resistant pattern. For enterococci, except for penicillin G and ampicillin resistance rate, Enterococcus faecalis is much higher than Enterococcus faecalis, the rest of the antimicrobial drugs did not see a significant difference, in addition to vancomycin-resistant enterococci were not detected. Clinicians should pay great attention to the monitoring data of multidrug-resistant G +cocci isolated from blood cultures to provide a basis for empirical and rational use of drugs in the clinic, to effectively prevent and reduce the incidence of bloodstream infections caused by G +cocci.

To investigate the strain composition and drug resistance characteristics of G +(Gram positive cocci) cocci causing bloodstream infections in the People′s Hospital of Inner Mongolia Autonomous Region in recent years and provide a basis for the empirical and rational use of drugs for the prevention and treatment of bloodstream infections caused by G +cocci. The strain composition and drug-resistant characteristics of G +cocci isolated from positive blood culture specimens sent to various departments of the Inner Mongolia Autonomous Region People′s Hospital from January 2015 to December 2022 were retrospectively analyzed, and the higher detection rates of Staphylococcus hominis and Staphylococcus epidermidis, Enterococcus faecium and Enterococcus faecalis, and methicillin-resistant Staphylococcus aureus (MRSA) and methicillin-sensitive Staphylococcus aureus (MSSA) were examined. MRSA and methicillin-sensitive Staphylococcus aureus (MSSA) were comparatively analyzed for resistance. The resistance data were analyzed by Whonet 5.6 statistical software, the significance of difference was analyzed by SPSS 22.0 software, and the resistance rate was compared by χ2 test. The results showed that 1 209 strains of G +cocci, in terms of the composition ratio, from high to low, were mainly human staphylococci (32.5%,393/1 209), Staphylococcus epidermidis (27.8%, 336/1 209), Staphylococcus aureus (14.9%,180/1 209) and Enterococcus faecalis (10.6%, 128/1 209). Among them, the detection rate of methicillin-resistant Staphylococcus aureus (MRSA) (42.8%, 77/180) was lower than that of methicillin-resistant coagulase-negative staphylococcus (MRCNS) (71.5%, 608/850); and among enterococci, the detection rate of Enterococcus faecalis (71.5%, 128/179) was much higher than that of Enterococcus faecalis (28.5%, 51/179). For drug resistance, the resistance rate to five commonly used antimicrobial drugs, ciprofloxacin, levofloxacin, moxifloxacin, clindamycin and tetracycline, was higher in Staphylococcus hominis than in Staphylococcus epidermidis ( χ2=7.152-64.080, P<0.05); however, for the aminoglycoside antimicrobial drug gentamicin, the rate of resistance in Staphylococcus humanus was lower than in Staphylococcus epidermidis, and the difference was statistically significant ( χ2=11.895, P<0.05); no strains resistant to linezolid and vancomycin were found in both. Comparison of the resistance rates to seven antimicrobial drugs, gentamicin, rifampicin, ciprofloxacin, levofloxacin, moxifloxacin, clindamycin and tetracycline, was significantly higher in MRSA than in MSSA ( χ2=6.169-56.941, P<0.05); however, the resistance rate to cotrimoxazole, MRSA (15.6%, 12/77) was significantly lower than that of MSSA (35.3%, 36/102), and the difference was statistically significant ( χ2=5.155, P<0.05); MRSA and MSSA resistant to linezolid and vancomycin were not found. The resistance rate of Enterococcus faecalis to penicillin G and ampicillin was much higher than that of Enterococcus faecalis, and the difference was statistically significant ( χ2=22.965, P<0.05), and vancomycin-resistant enterococci (VRE) were not found. In conclusion, for staphylococci, except for individual antibiotics, S.hominis and MRSA were more resistant to most antimicrobial drugs than S. epidermidis and MSSA, showing a multidrug-resistant pattern. For enterococci, except for penicillin G and ampicillin resistance rate, Enterococcus faecalis is much higher than Enterococcus faecalis, the rest of the antimicrobial drugs did not see a significant difference, in addition to vancomycin-resistant enterococci were not detected. Clinicians should pay great attention to the monitoring data of multidrug-resistant G +cocci isolated from blood cultures to provide a basis for empirical and rational use of drugs in the clinic, to effectively prevent and reduce the incidence of bloodstream infections caused by G +cocci.

Poisoning induced by inhalation of hydrogen chloride has significant effects on the respiratory system. It can cause severe pulmonary edema and acute respiratory distress syndrome (ARDS) in the early stage, and even death in critical cases. As a novel treatment for ARDS, the efficacy of sivelestat sodium in infection-induced ARDS has been widely verified, but its application in ARDS caused by chemical poisoning is still scarce in literature. Here we report a case of ARDS induced by hydrogen chloride inhalation which was successfully treated with sivelestat sodium and conventional treatment.

Poisoning induced by inhalation of hydrogen chloride has significant effects on the respiratory system. It can cause severe pulmonary edema and acute respiratory distress syndrome (ARDS) in the early stage, and even death in critical cases. As a novel treatment for ARDS, the efficacy of sivelestat sodium in infection-induced ARDS has been widely verified, but its application in ARDS caused by chemical poisoning is still scarce in literature. Here we report a case of ARDS induced by hydrogen chloride inhalation which was successfully treated with sivelestat sodium and conventional treatment.

Objective:To determine the epidemiology of hyperkalemia and influencing factors in a general population in Pinggu district of Beijing city.Methods:This study was a cross-sectional survey. The subjects were from the epidemiological survey population of chronic diseases in Pinggu district of Beijing city from March to May 2014. All participants completed a questionnaire, anthropological measurement, and venous blood samples collection to detect serum creatinine and potassium and so on. First void morning urine was collected to detect the albumin-creatinine ratio. Hyperkalemia and hypokalemia were defined as serum potassium level>5.0 mmol/L and≤3.5 mmol/L, respectively. Logistic regression analysis method was used to analyze the influencing factors of hyperkalemia.Results:Of the 10 252 people in this study, the prevalence of hyperkalemia was 6.17%(95% CI 5.70%-6.67%), the prevalence of hypokalemia was 0.61%(95% CI 0.47%-0.79%), and the prevalence of participants with serum potassium>5.5 mmol/L was 0.53%(95% CI 0.40%-0.69%). Multivariate logistic regression analysis results showed that males ( OR=1.269, 95% CI 1.074-1.498, P=0.005), diabetes ( OR=1.226, 95% CI 1.008-1.490, P=0.041), increased total cholesterol ( OR=1.219, 95% CI 1.119-1.329, P<0.001), and decreased estimated glomerular filtration rate ( OR=0.971, 95% CI 0.965-0.977, P<0.001) were significantly correlated with the increased risk of hyperkalemia. Usage of renin-angiotensin-aldosterone system inhibitors and diuretics were not found to be significantly associated with the risk of hyperkalemia ( OR=1.018, 95% CI 0.751-1.380, P=0.908; OR=0.638, 95% CI 0.229-1.781, P=0.391). Conclusions:The prevalence of HK in the general population is 6.17%. The male, decreased estimated glomerular filtration rate, diabetes, and increased total cholesterol are influencing factors of hyperkalemia.

Objective:To analyze the application effect of health failure mode and effect analysis (HFMEA) model in patients with artificial airways in the cardiovascular surgery intensive care unit (CSICU) by establishing a HFMEA project team, and to develop targeted improvement measures and processes.Methods:The patients undergoing cardiovascular surgeries and with established artificial airways in the Shandong Provincial Hospital Affiliated to Shandong First Medical University were recruited from October 2021 to March 2022. The enrolled patients were divided into the conventional management group and the HFMEA model management group according to random number table method. The conventional management group applied the conventional procedures for monitoring the air bag pressure. The HFMEA model management group used the HFMEA model to implement and improve the airbag pressure monitoring process. The efficacy of HFMEA was assessed by comparing the incidence of ventilator-associated pneumonia (VAP), the pass rate of airbag pressure monitoring, the duration of endotracheal intubation and the length of CSICU stay between two groups. The practicability of HFMEA model was evaluated by analyzing the theoretical assessment scores and practical skill scores of nurses and their satisfaction scores with HFMEA.Results:Compared with the conventional management group, the patients in the HFMEA mode management group had a significantly higher rate of passing airbag pressure monitoring [94.99% (2 994/3 152) vs. 69.97% (1 626/2 324), P < 0.01], shorter duration of endotracheal intubation and length of CSICU stay [duration of endotracheal intubation (hours): 6 (7, 12) vs. 6 (8, 13), length of CSICU stay (hours): 40 (45, 65) vs. 41 (46, 85), both P < 0.05], but the incidences of VAP between the two groups were similar. The theoretical assessment scores and practical skill scores of nurses were significantly higher (theoretical assessment score: 44.47±2.72 vs. 37.59±6.56, practical skill score: 44.56±2.66 vs. 40.03±4.32, total score: 89.03±3.07 vs. 77.63±9.56, all P < 0.05) in the HFMEA mode management group. And the satisfaction scores with airbag pressure management were also significantly higher in the HFMEA mode management group (7.72±1.11 vs. 6.44±1.32, P < 0.05). Conclusions:The application of the HFMEA can improve the airbag pressure measures and standardize the monitoring procedures in patients with artificial airways, and reduce the risk of clinical nursing. It is safe and effective for patients with invasive mechanical ventilation in the CSICU.

Objective:This study intends to explore the clinical outcomes of liposuction combined with a vacuum-assisted biopsy device in the treatment of Simon grade Ⅰ or Ⅱ gynecomastia (GYN) caused by glandular proliferation and excrescent fat deposition.Methods:The clinical data of Simon grade Ⅰ or Ⅱ GYN caused by glandular proliferation and excrescent fat deposition treated by liposuction and vacuum-assisted biopsy device in the Department of Plastic and Reconstructive Surgery of the Ninth People’s Hospital Affiliated to Medical College of Shanghai Jiao Tong University from June 2016 to June 2019 were analyzed retrospectively. Surgical procedures: A 5-mm skin incision was made at the lower outer margin of the breast, through which the excrescent fat deposition was removed by liposuction. In addition, a vacuum-assisted biopsy device was applied to remove the residual glandular tissue. The operation time, liposuction volume, removed glandular tissue weight, blood loss, drainage volume, drainage duration, patient satisfaction, and complications were observed and recorded. The patients were followed up from June to December 2020. Patients were asked to grade the cosmetic outcome between 0 and 5 (0 was extremely dissatisfied, 5 was extremely satisfied). The data were sorted out and analyzed by SPSS 19.0, and the data were expressed as Mean±SD or M ( P25, P75). Results:A total of 27 patients with 51 breasts were enrolled in this study. Unilateral operation time, liposuction volume, removed glandular tissue weight, blood loss, drainage volume, drainage duration were (45.3±11.1) min, (206.0±66.7) ml, (28.9±9.5) g, (10.0±4.3) ml, (78.8±33.9) ml and (2.3±0.4) d respectively. Bruising occurred in 9 breasts. No other complications were observed. The postoperative follow-up time was 21.0 (17.0, 28.0) months, and the score of patient satisfaction was 4.98±0.14.Conclusions:Liposuction combined with vacuum-assisted biopsy device can be used as a feasible and minimally invasive approach to treat the Simon grade Ⅰ or Ⅱ GYN caused by glandular proliferation and excrescent fat deposition, which is safe and reliable with few complications, excellent cosmetic results, and high patient satisfaction. However, it has some shortcomings, such as hemostasis under the indirect vision.