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Prediction of Th17/Treg cell balance on length of stay in intensive care units of patients with sepsis 预测 Th17/Treg 细胞平衡对脓毒症患者重症监护室住院时间的影响
Pub Date : 2024-04-01 DOI: 10.1016/j.jointm.2023.09.005
Yu Wu , Guosheng Wu , Minyu Li , Yongqing Chang , Miao Yu , Yan Meng , Xiaojian Wan

Background

Prolonged length of stay (LOS) of sepsis can drain a hospital's material and human resources. This study investigated the correlations between T helper type 17 (Th17) and regulatory T (Treg) balance with LOS in sepsis.

Methods

A prospective clinical observational study was designed in Changhai Hospital affiliated to Naval Medical University in Shanghai, China, from January to October 2020. The patients diagnosed with sepsis and who met the inclusion and exclusion criteria were recruited and whether the levels of cytokines, procalcitonin, subtypes, and biomarkers of T cells in the peripheral blood were detected. We analyzed the correlation between these and LOS.

Results

Sixty septic patients were classified into two groups according to whether their intensive care unit (ICU) stay exceeded 14 days. The patients with LOS ≥14 days were older ([72.6±7.5] years vs. [63.3±10.4] years, P=0.015) and had higher Sequential Organ Failure Assessment (SOFA) (median [interquartile range]: 6.5 [5.0–11.0] vs. 4.0 [3.0–6.0], P=0.001) and higher Acute Physiology and Chronic Health Evaluation (APACHE) II scores (16.0 [13.0–21.0] vs. 8.5 [7.0–14.0], P=0.001). There was no difference in other demographic characteristics and cytokines, interleukin-6, tumor necrosis factor-α, and interleukin-10 between the two groups. The Th17/Treg ratio of sepsis with LOS <14 days was considerably lower (0.48 [0.38–0.56] vs. 0.69 [0.51–0.98], P=0.001). For patients with LOS ≥14 days, the area under the receiver operating characteristic curve for the Th17/Treg ratio was 0.766. It improved to 0.840 and 0.850 when combined with the SOFA and APACHE II scores, respectively.

Conclusions

The Th17/Treg ratio was proportional to septic severity and can be used as a potential predictor of ICU stay in sepsis, presenting a new option for ICU practitioners to better care for patients with sepsis.

背景脓毒症患者住院时间(LOS)的延长会耗费医院的物力和人力。本研究探讨了脓毒症患者T辅助细胞17型(Th17)和调节性T(Treg)平衡与住院时间的相关性。方法于2020年1月至10月在中国上海海军军医大学附属长海医院设计了一项前瞻性临床观察研究。招募符合纳入和排除标准的脓毒症患者,检测其外周血中细胞因子、降钙素原、亚型和 T 细胞生物标志物的水平。结果根据脓毒症患者在重症监护室(ICU)的住院时间是否超过 14 天,将其分为两组。LOS≥14天的患者年龄较大([72.6±7.5] 岁 vs. [63.3±10.4]岁,P=0.015),序贯器官功能衰竭评估(SOFA)较高(中位数[四分位间范围]:6.5[5.0-11.0]对 4.0 [3.0-6.0],P=0.001),急性生理学和慢性健康评估(APACHE)II 评分更高(16.0 [13.0-21.0] 对 8.5 [7.0-14.0],P=0.001)。两组患者的其他人口统计学特征和细胞因子、白细胞介素-6、肿瘤坏死因子-α和白细胞介素-10均无差异。LOS<14天的脓毒症患者的Th17/Treg比值要低得多(0.48 [0.38-0.56] vs. 0.69 [0.51-0.98],P=0.001)。对于LOS≥14天的患者,Th17/Treg比值的接收者操作特征曲线下面积为0.766。结论 Th17/Treg 比值与脓毒症严重程度成正比,可作为脓毒症患者入住 ICU 的潜在预测指标,为 ICU 医生更好地护理脓毒症患者提供了新的选择。
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引用次数: 0
Prognostic value of time-varying dead space estimates in mechanically ventilated patients with acute respiratory distress syndrome 急性呼吸窘迫综合征机械通气患者时变死腔估计值的预后价值
Pub Date : 2024-04-01 DOI: 10.1016/j.jointm.2023.08.002
Lianlian Jiang , Hui Chen , Jianfeng Xie , Ling Liu , Yi Yang

Background

The dead space fraction (VD/VT) has proven to be a powerful predictor of higher mortality in acute respiratory distress syndrome (ARDS). However, its measurement relies on expired carbon dioxide, limiting its widespread application in clinical practice. Several estimates employing routine variables have been found to be reliable substitutes for direct measurement of VD/VT. In this study, we evaluated the prognostic value of these dead space estimates obtained in the first 7 days following the initiation of ventilation.

Methods

This retrospective observational study was conducted using data from the Chinese database in intensive care (CDIC). Eligible participants were adult ARDS patients receiving invasive mechanical ventilation while in the intensive care unit between 1st January 2014 and 31st March 2021. We collected data during the first 7 days of ventilation to calculate various dead space estimates, including ventilatory ratio (VR), corrected minute ventilation (V˙Ecorr), VD/VT (Harris–Benedict), VD/VT (Siddiki estimate), and VD/VT (Penn State estimate) longitudinally. A time-dependent Cox model was used to handle these time-varying estimates.

Results

A total of 392 patients (median age 66 [interquartile range: 55–77] years, median SOFA score 9 [interquartile range: 7–12]) were finally included in our analysis, among whom 132 (33.7%) patients died within 28 days of admission. VR (hazard ratio [HR]=1.04 per 0.1 increase, 95% confidence interval [CI]: 1.01 to 1.06; P=0.013), V˙Ecorr (HR=1.08 per 1 increase, 95% CI: 1.04 to 1.12; P < 0.001), VD/VT (Harris–Benedict) (HR=1.25 per 0.1 increase, 95% CI: 1.06 to 1.47; P=0.006), and VD/VT (Penn State estimate) (HR=1.22 per 0.1 increase, 95% CI: 1.04 to 1.44; P=0.017) remained significant after adjustment, while VD/VT (Siddiki estimate) (HR=1.10 per 0.1 increase, 95% CI: 1.00 to 1.20; P=0.058) did not. Given a large number of negative values, VD/VT (Siddiki estimate) and VD/VT (Penn State estimate) were not recommended as reliable substitutes. Long-term exposure to VR >1.3, V˙Ecorr >7.53, and VD/VT (Harris–Benedict) >0.59 was independently associated with an increased risk of mortality in ARDS patients. These findings were validated in the fluid and catheter treatment trial (FACTT) database.

Conclusions

In cases where VD/VT cannot

背景事实证明,死腔分数(VD/VT)是预测急性呼吸窘迫综合征(ARDS)死亡率的有力指标。然而,其测量依赖于呼出的二氧化碳,限制了其在临床实践中的广泛应用。研究发现,一些采用常规变量的估算值可以可靠地替代 VD/VT 的直接测量值。在本研究中,我们评估了这些死腔估计值在开始通气后头 7 天内的预后价值。方法这项回顾性观察研究使用了中国重症监护数据库(CDIC)中的数据。符合条件的参与者为 2014 年 1 月 1 日至 2021 年 3 月 31 日期间在重症监护病房接受有创机械通气的成年 ARDS 患者。我们收集了通气最初 7 天的数据,以纵向计算各种死腔估计值,包括通气比(VR)、校正分钟通气量(V˙Ecorr)、VD/VT(Harris-Benedict)、VD/VT(Siddiki 估计值)和 VD/VT(宾夕法尼亚州估计值)。结果 共有 392 名患者(中位年龄 66 [四分位间距:55-77]岁,中位 SOFA 评分 9 [四分位间距:7-12])被纳入我们的分析,其中 132 名患者(33.7%)在入院 28 天内死亡。VR(每增加 0.1,危险比 [HR] =1.04,95% 置信区间 [CI]:1.01 至 1.06;每增加 0.1,危险比 [HR] =1.04,95% 置信区间 [CI]:1.011.01至1.06;P=0.013)、V˙Ecorr(每增加1,HR=1.08,95% CI:1.04至1.12;P <;0.001)、VD/VT(Harris-Benedict)(每增加0.1,HR=1.25,95% CI:1.06至1.47;P=0.006)和VD/VT(宾夕法尼亚州估计)(每增加0.1,HR=1.每增加 0.1,HR=1.22,95% CI:1.04 至 1.44;P=0.017)经调整后仍具有显著性,而 VD/VT(Siddiki 估计值)(每增加 0.1,HR=1.10,95% CI:1.00 至 1.20;P=0.058)则不具有显著性。由于存在大量负值,因此不建议将 VD/VT(Siddiki 估计值)和 VD/VT(宾夕法尼亚州估计值)作为可靠的替代品。长期暴露于 VR >1.3、V˙Ecorr >7.53、VD/VT(Harris-Benedict)>0.59 与 ARDS 患者死亡风险增加有独立关联。结论在无法直接测量 VD/VT 的情况下,VR、V˙Ecorr 和 VD/VT (Harris-Benedict) 等 VD/VT 的早期时变估计值可用于预测 ARDS 患者的死亡率,从而提供快速的床边应用。
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引用次数: 0
Factors associated with decreased compliance after on-site extracorporeal membrane oxygenation cannulation for acute respiratory distress syndrome: A retrospective, observational cohort study 急性呼吸窘迫综合征现场体外膜肺氧合插管后依从性下降的相关因素:一项回顾性观察队列研究
Pub Date : 2024-04-01 DOI: 10.1016/j.jointm.2023.09.004
Sylvain Le Pape , Florent Joly , François Arrivé , Jean-Pierre Frat , Maeva Rodriguez , Maïa Joos , Laura Marchasson , Mathilde Wairy , Arnaud W. Thille , Rémi Coudroy

Background

Extracorporeal membrane oxygenation (ECMO) for acute respiratory distress syndrome (ARDS) is systematically associated with decreased respiratory system compliance (CRS). It remains unclear whether transportation to the referral ECMO center, changes in ventilatory mode or settings to achieve ultra-protective ventilation, or the natural evolution of ARDS drives this change in respiratory mechanics. Herein, we assessed the precise moment when CRS decreases after ECMO cannulation and identified factors associated with decreased CRS.

Methods

To rule out the effect of transportation and the different modes of ventilation on CRS, we conducted a retrospective, single-center, observational cohort study from January 2013 to May 2020, on 22 patients with severe ARDS requiring on-site ECMO and ventilated in pressure-controlled mode to achieve ultra-protective ventilation. CRS was assessed at different time points ranging from 12 h before ECMO cannulation to 72 h after ECMO cannulation. The primary outcome was the relative change in CRS between 3 h before and 3 h after ECMO cannulation. The secondary outcomes included variables associated with the relative changes in CRS within the first 3 h after ECMO cannulation and the relative changes in CRS at each time point.

Results

CRS decreased within the first 3 h after ECMO cannulation (−28.3%, 95% confidence interval [CI]: −38.8 to −17.9, P<0.001), while the decrease was mild before and after these first 3 h after ECMO cannulation. To achieve ultra-protective ventilation, respiratory rate decreased in the mean by –13 breaths/min (95% CI: −15 to −11) and driving pressure by −8.3 cmH2O (95% CI: −11.2 to −5.3), resulting in decreased tidal volume by −3.3 mL/kg of predicted body weight (95% CI: −3.9 to −2.6) as compared to before ECMO cannulation (P <0.001 for all). Plateau pressure reduction, driving pressure reduction, and tidal volume reduction were significantly associated with decreased CRS after ECMO cannulation, whereas neither respiratory rate, positive end-expiratory pressure, inspired fraction of oxygen, fluid balance, nor mean airway pressure was associated with decreased CRS.

Conclusions

Decreased driving pressure resulting in lower tidal volume to achieve ultra-protective ventilation after ECMO cannulation was associated with a marked decrease in CRS in ARDS patients with on-site ECMO cannulation.

背景体外膜肺氧合(ECMO)治疗急性呼吸窘迫综合征(ARDS)与呼吸系统顺应性(CRS)下降有系统性关联。目前仍不清楚是转运至转诊 ECMO 中心、为实现超保护通气而改变通气模式或设置,还是 ARDS 的自然演变导致了呼吸力学的这种变化。为了排除转运和不同通气模式对 CRS 的影响,我们在 2013 年 1 月至 2020 年 5 月期间对 22 例需要现场 ECMO 并以压力控制模式通气以实现超保护通气的重度 ARDS 患者进行了一项回顾性、单中心、观察性队列研究。从 ECMO 插管前 12 小时到 ECMO 插管后 72 小时的不同时间点对 CRS 进行了评估。主要结果是 ECMO 插管前 3 小时与插管后 3 小时之间 CRS 的相对变化。次要结果包括与 ECMO 插管后前 3 小时内 CRS 相对变化相关的变量以及每个时间点 CRS 的相对变化。结果 CRS 在 ECMO 插管后前 3 小时内下降(-28.3%,95% 置信区间 [CI]:-38.8 至 -17.9,P<0.001),而在 ECMO 插管后前 3 小时之前和之后下降幅度较小。为实现超保护通气,与 ECMO 插管前相比,呼吸频率平均降低了 -13 次/分(95% CI:-15 至 -11),驱动压力降低了 -8.3 cmH2O(95% CI:-11.2 至 -5.3),潮气量减少了 -3.3 mL/kg(95% CI:-3.9 至 -2.6)(所有数据均为 P<0.001)。ECMO插管后,平台压降低、驱动压降低和潮气量降低与 CRS 下降显著相关,而呼吸频率、呼气末正压、吸入氧分压、液体平衡和平均气道压均与 CRS 下降无关。
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引用次数: 0
A retrospective analysis of carbapenem-resistant Acinetobacter baumannii infections in critically ill patients: Experience at a tertiary-care teaching hospital ICU 重症患者中耐碳青霉烯类鲍曼不动杆菌感染的回顾性分析:一家三级教学医院重症监护室的经验
Pub Date : 2024-04-01 DOI: 10.1016/j.jointm.2023.11.004
Leyla Ferlicolak , Neriman Defne Altintas , Fugen Yoruk

Background

Acinetobacter baumannii is a clinically significant pathogen with a high incidence of multidrug resistance that is associated with life-threatening nosocomial infections. Here, we aimed to provide an insight into the clinical characteristics and outcomes of a unique group of A. baumannii infections in which the isolates were resistant to carbapenems and most other antibiotic groups in a tertiary-care intensive care unit (ICU).

Methods

We performed a retrospective observational study in which records of patients hospitalized in the ICU between June 1, 2021 and June 1, 2023 were reviewed. We checked the clinical, laboratory, and microbiological records of all adult patients who had carbapenem-resistant A. baumannii (CRAB) infections. Prior antibiotic treatments and definitive antibiotic treatments after culture positivity and susceptibility test results were recorded. C-reactive protein (CRP) and procalcitonin levels and leukocyte counts were noted. Length of ICU stay and 30-day mortality were defined as the outcome parameters.

Results

During the study period, 57 patients were diagnosed with CRAB infections. The respiratory tract was the leading infection site (80.7%). In non-survivors, bloodstream infections (21.9% vs. 4.0% P=0.05) and colistin-resistant (col-R) CRAB infections (43.8% vs. 24.0%, P=0.12) were more common than in survivors, but these parameters were not statistically significant. The length of ICU stay was not different between survivors and non-survivors. Overall, the rate of col-R among CRAB clinical isolates was 35.1%. The 30-day mortality in all patients with CRAB infection was 56.1%. Mortality in col-R CRAB and colistin-susceptible (col-S) CRAB infections was 70.0% and 48.6%, respectively (P=0.12). Prior carbapenem use was 56.1%. Prior colistin use before col-R and col-S CRAB infections was not significant (35.0% vs. 27.0%, P=0.53).

Conclusions

Our study provides real-world data on highly resistant A. baumannii infections and shares the characteristics of infections with such resistant strains. Unfortunately, carbapenem resistance in A. baumannii is a challenge for intensive care specialists who are faced with few treatment options, and colistin resistance further complicates the problem.

背景鲍曼不动杆菌是一种临床意义重大的病原体,对多种药物耐药的发生率很高,与危及生命的院内感染有关。方法 我们开展了一项回顾性观察研究,审查了 2021 年 6 月 1 日至 2023 年 6 月 1 日期间在重症监护病房住院的患者记录。我们检查了所有耐碳青霉烯类鲍曼尼菌(CRAB)感染的成人患者的临床、实验室和微生物学记录。记录了之前的抗生素治疗和培养阳性后的最终抗生素治疗以及药敏试验结果。记录了 C 反应蛋白 (CRP) 和降钙素原水平以及白细胞计数。重症监护室住院时间和 30 天死亡率被定义为结果参数。呼吸道是主要感染部位(80.7%)。在非幸存者中,血流感染(21.9% 对 4.0%,P=0.05)和耐可乐定(col-R)CRAB 感染(43.8% 对 24.0%,P=0.12)比幸存者更常见,但这些参数没有统计学意义。幸存者和非幸存者在重症监护室的住院时间没有差异。总体而言,CRAB 临床分离株的 col-R 感染率为 35.1%。所有CRAB感染患者的30天死亡率为56.1%。在col-R CRAB和对可乐定敏感(col-S)的CRAB感染中,死亡率分别为70.0%和48.6%(P=0.12)。之前使用碳青霉烯类药物的比例为 56.1%。我们的研究提供了高耐药鲍曼不动杆菌感染的真实数据,并与此类耐药菌株的感染特征相同。不幸的是,鲍曼不动杆菌对碳青霉烯类耐药是重症监护专家面临的一个挑战,因为他们面临的治疗选择很少,而对可乐定耐药则使问题进一步复杂化。
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引用次数: 0
Septic shock due to Capnocytophaga canimorsus treated with IgM-enriched immunoglobulin as adjuvant therapy in an immunocompetent woman 用富含 IgM 的免疫球蛋白作为辅助疗法治疗一名免疫功能正常妇女因卡氏嗜血杆菌引起的脓毒性休克
Pub Date : 2024-04-01 DOI: 10.1016/j.jointm.2023.08.003
Josephine Braunsteiner, Stephanie Siedler, Dominik Jarczak, Stefan Kluge, Axel Nierhaus
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引用次数: 0
Diagnostic accuracy of ePOS score in predicting DNR labeling after ICU admission: A prospective observational study (ePOS-DNR) ePOS 评分在预测 ICU 入院后 DNR 标记方面的诊断准确性:前瞻性观察研究(ePOS-DNR)
Pub Date : 2024-04-01 DOI: 10.1016/j.jointm.2023.09.003
Omar E. Ramadan , Ahmed F. Mady , Mohammed A. Al-Odat , Ahmed N. Balshi , Ahmed W. Aletreby , Taisy J. Stephen , Sheena R. Diolaso , Jennifer Q. Gano , Waleed Th. Aletreby

Background

Resuscitation can sometimes be futile and making a do-not-resuscitate (DNR) decision is in the best interest of the patient. The electronic poor outcome screening (ePOS) score was developed to predict 6-month poor outcomes of critically ill patients. We explored the diagnostic accuracy of the ePOS score in predicting DNR decisions in the intensive care unit (ICU).

Methods

This study was conducted at the ICU of a tertiary referral hospital in Saudi Arabia between March and May 2023. Prospectively, we calculated ePOS scores for all eligible consecutive admissions after 48 h in the ICU and recorded the DNR orders. The ability of the score to predict DNR was explored using logistic regression. Youden's ideal cut-off value was calculated using the DeLong method, and different diagnostic accuracy measures were generated with corresponding 95 % confidence intervals (CIs).

Results

We enrolled 857 patients, 125 received a DNR order and 732 did not. The average ePOS score of DNR and non-DNR patients was 28.2±10.7 and 15.2±9.7, respectively. ePOS score, as a predictor of DNR order, had an area under receiver operator characteristic (AUROC) curve of 81.8 % (95% CI: 79.0 to 84.3, P <0.001). Youden's ideal cut-off value >17 was associated with a sensitivity of 87.2 (95% CI: 80.0 to 92.5, P <0.001), specificity of 63.9 (95% CI: 60.3 to 67.4, P <0.001), positive predictive value of 29.2 (95% CI: 24.6 to 33.8, P <0.001), negative predictive value of 96.7 (95% CI: 95.1 to 98.3, P <0.001), and diagnostic odds ratio 12.1 (95% CI: 7.0 to 20.8, P <0.001).

Conclusions

In this study, the ePOS score performed well as a diagnostic test for patients who will be labeled as DNR during their ICU stay. A cut-off score >17 may help guide clinical decisions to withhold or commence resuscitative measures.

背景复苏有时可能是徒劳的,做出不进行复苏(DNR)的决定符合患者的最佳利益。电子不良预后筛查(ePOS)评分是为了预测重症患者 6 个月的不良预后而开发的。我们探讨了 ePOS 评分在预测重症监护病房(ICU)DNR 决定方面的诊断准确性。方法这项研究于 2023 年 3 月至 5 月期间在沙特阿拉伯一家三级转诊医院的重症监护病房进行。我们前瞻性地计算了重症监护室 48 小时后所有符合条件的连续入院患者的 ePOS 分数,并记录了 DNR 命令。我们使用逻辑回归法探讨了该评分预测 DNR 的能力。使用 DeLong 方法计算了尤登理想临界值,并得出了不同的诊断准确性测量值及相应的 95 % 置信区间 (CI)。DNR 和非 DNR 患者的平均 ePOS 评分分别为(28.2±10.7)分和(15.2±9.7)分。ePOS 评分作为 DNR 命令的预测指标,其接收者操作特征曲线下面积(AUROC)为 81.8 %(95% CI:79.0 至 84.3,P <0.001)。Youden理想截断值>17的灵敏度为87.2 (95% CI: 80.0 to 92.5, P <0.001),特异度为63.9 (95% CI: 60.3 to 67.4, P <0.001),阳性预测值为29.2 (95% CI: 24.6 to 33.8, P <0.001),阴性预测值为96.7 (95% CI: 95.1 to 98.3, P <0.001),诊断几率比12.1 (95% CI: 7.0 to 20.8, P <0.001)。结论在这项研究中,ePOS评分作为ICU住院期间将被标记为DNR患者的诊断测试表现良好。截断分数>17可能有助于指导临床决定暂停或开始复苏措施。
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引用次数: 0
MicroRNA-30a inhibits cell proliferation in a sepsis-induced acute kidney injury model by targeting the YAP-TEAD complex MicroRNA-30a 通过靶向 YAP-TEAD 复合物抑制败血症诱导的急性肾损伤模型中的细胞增殖
Pub Date : 2024-04-01 DOI: 10.1016/j.jointm.2023.08.004
Junfeng Su , Ying Wang , Jing Xie , Long Chen , Xinxin Lin , Jiandong Lin , Xiongjian Xiao

Background

Acute kidney injury (AKI) is a primary feature of renal complications in patients with sepsis. MicroRNA (miRNA/miR)-30a is an essential regulator of cardiovascular diseases, tumors, phagocytosis, and other physical processes, but whether it participates in sepsis-induced AKI (sepsis-AKI) is unknown. We aimed to elucidate the functions and molecular mechanism underlying miR-30a activity in sepsis-AKI.

Methods

The classical cecal ligation and puncture (CLP) method and lipopolysaccharide (LPS)-induced Human Kidney 2 (HK-2) cells were used to establish in vivo and in vitro sepsis-AKI models. Specific pathogen-free and mature male Sprague-Dawley (SD) rats, aged 6–8 weeks (weight 200–250 g), were randomly divided into five-time phase subgroups. Fluid resuscitation with 30 mL/kg 37 °C saline was administered after the operation, without antibiotics. Formalin-fixed, paraffin-embedded kidney sections were stained with hematoxylin and eosin. SD rat kidney tissue samples were collected for analysis by real-time quantitative polymerase chain reaction and enzyme-linked immunosorbent assay. HK-2 cells were transfected with hsa-miR-30a-3p mimics or inhibitors, and compared with untreated normal controls. RNA, protein, and cell viability were evaluated by quantitative reverse transcription-polymerase chain reaction (qRT-PCR), western blot, and cell counting kit-8 methods. A Dual-Luciferase Assay Kit (Promega) was used to measure luciferase activity 48 h after transfection with miR-30a-3p mimics.

Results

Expression levels of miR-30a-3p and miR-30a-5p in renal tissues of the sepsis group were significantly reduced at 12 h and 24 h (P <0.05). Tumor necrosis factor-α (TNF-α) and interleukin-1β (IL-1β) were significantly increased in renal tissue 3 h after the operation in rats (P <0.05), and gradually decreased 6 h, 12 h, and 24 h after CLP. Levels of miR-30a-5p and miR-30a-3p were significantly down-regulated at 3 h after LPS treatment (P <0.05), and gradually decreased in HK-2 cells. One hour after LPS (10 µg/mL) treatment, TNF-α and IL-1β levels in HK-2 cells were significantly up-regulated (P < 0.05), and they were markedly down-regulated after 3 h (P <0.05). IL-6 expression levels began to rise after LPS treatment of cells, peaked at 6 h (P <0.05), and then decreased to the initial level within a few hours. Stimulation with 10 µg/mL LPS promoted HK-2 cells proliferation, which was inhibited after miR-30a-3p-mimic transfection. Bioinformatics prediction identified 37 potential miR-30a-3p target genes, including transcriptional enhanced associate domain 1 (TEAD1). After transfection of HK-2 cells with miR-30a-3p mimics and miR-30a-3p inhibitor, TEAD1 transcript was significantly up- and down-regulated, respectively (both P <0.05). After LPS treatment (24 h), expression

背景急性肾损伤(AKI)是脓毒症患者肾脏并发症的主要特征。微小RNA(miRNA/miR)-30a是心血管疾病、肿瘤、吞噬和其他物理过程的重要调节因子,但它是否参与脓毒症诱导的急性肾损伤(sepsis-AKI)尚不清楚。我们的目的是阐明 miR-30a 在脓毒症-AKI 中的功能和分子机制。方法采用经典的盲肠结扎和穿刺(CLP)方法和脂多糖(LPS)诱导的人肾 2(HK-2)细胞建立体内和体外脓毒症-AKI 模型。将年龄为 6-8 周(体重为 200-250 克)的特定无病原体成熟雄性 Sprague-Dawley (SD) 大鼠随机分为五个时相亚组。术后使用 30 mL/kg 37 °C 生理盐水进行液体复苏,不使用抗生素。对经福尔马林固定、石蜡包埋的肾脏切片进行苏木精和伊红染色。收集 SD 大鼠肾脏组织样本,通过实时定量聚合酶链反应和酶联免疫吸附试验进行分析。用 hsa-miR-30a-3p 模拟物或抑制剂转染 HK-2 细胞,并与未经处理的正常对照组进行比较。采用定量反转录聚合酶链反应(qRT-PCR)、Western 印迹和细胞计数试剂盒-8 方法评估 RNA、蛋白质和细胞活力。结果脓毒症组肾脏组织中 miR-30a-3p 和 miR-30a-5p 的表达水平在 12 h 和 24 h 时显著降低(P <0.05)。大鼠术后3 h肾组织中肿瘤坏死因子-α(TNF-α)和白细胞介素-1β(IL-1β)水平明显升高(P <0.05),并在CLP术后6 h、12 h和24 h逐渐降低。LPS 处理后 3 小时,miR-30a-5p 和 miR-30a-3p 的水平明显下调(P <0.05),并在 HK-2 细胞中逐渐下降。LPS(10 µg/mL)处理一小时后,HK-2细胞中的TNF-α和IL-1β水平明显上调(P <0.05),3 h后明显下调(P <0.05)。细胞经 LPS 处理后,IL-6 表达水平开始上升,在 6 h 达到峰值(P <0.05),然后在几小时内降至初始水平。10 µg/mL LPS刺激可促进HK-2细胞增殖,而miR-30a-3p模拟物转染后可抑制增殖。生物信息学预测发现了 37 个潜在的 miR-30a-3p 靶基因,包括转录增强关联域 1(TEAD1)。用 miR-30a-3p 模拟物和 miR-30a-3p 抑制剂转染 HK-2 细胞后,TEAD1 转录本分别显著上调和下调(均为 P <0.05)。经 LPS 处理(24 h)后,抑制剂组 TEAD1 的表达明显增加(P <0.01),而模拟组则明显受到抑制(P <0.01)。在双荧光素酶报告实验中,miR-30a-3p 过表达会降低含 TEAD1-wt 质粒的荧光强度(P <0.01),但不影响含 TEAD1-muta 质粒的荧光强度。结论 在败血症-AKI 模型中,TNF-α、IL-1β 和 IL-6 等炎症因子的表达短暂增加,在此背景下,miR-30a 被下调。在 LPS 诱导的 HK-2 细胞中,下调的 miR-30a-3p 可能通过靶向 TEAD1 促进细胞增殖,这表明它有可能成为脓毒症-AKI 早期诊断的生物标志物。
{"title":"MicroRNA-30a inhibits cell proliferation in a sepsis-induced acute kidney injury model by targeting the YAP-TEAD complex","authors":"Junfeng Su ,&nbsp;Ying Wang ,&nbsp;Jing Xie ,&nbsp;Long Chen ,&nbsp;Xinxin Lin ,&nbsp;Jiandong Lin ,&nbsp;Xiongjian Xiao","doi":"10.1016/j.jointm.2023.08.004","DOIUrl":"10.1016/j.jointm.2023.08.004","url":null,"abstract":"<div><h3>Background</h3><p>Acute kidney injury (AKI) is a primary feature of renal complications in patients with sepsis. MicroRNA (miRNA/miR)-30a is an essential regulator of cardiovascular diseases, tumors, phagocytosis, and other physical processes, but whether it participates in sepsis-induced AKI (sepsis-AKI) is unknown. We aimed to elucidate the functions and molecular mechanism underlying miR-30a activity in sepsis-AKI.</p></div><div><h3>Methods</h3><p>The classical cecal ligation and puncture (CLP) method and lipopolysaccharide (LPS)-induced Human Kidney 2 (HK-2) cells were used to establish <em>in vivo</em> and <em>in vitro</em> sepsis-AKI models. Specific pathogen-free and mature male Sprague-Dawley (SD) rats, aged 6–8 weeks (weight 200–250 g), were randomly divided into five-time phase subgroups. Fluid resuscitation with 30 mL/kg 37 °C saline was administered after the operation, without antibiotics. Formalin-fixed, paraffin-embedded kidney sections were stained with hematoxylin and eosin. SD rat kidney tissue samples were collected for analysis by real-time quantitative polymerase chain reaction and enzyme-linked immunosorbent assay. HK-2 cells were transfected with hsa-miR-30a-3p mimics or inhibitors, and compared with untreated normal controls. RNA, protein, and cell viability were evaluated by quantitative reverse transcription-polymerase chain reaction (qRT-PCR), western blot, and cell counting kit-8 methods. A Dual-Luciferase Assay Kit (Promega) was used to measure luciferase activity 48 h after transfection with miR-30a-3p mimics.</p></div><div><h3>Results</h3><p>Expression levels of miR-30a-3p and miR-30a-5p in renal tissues of the sepsis group were significantly reduced at 12 h and 24 h (<em>P</em> &lt;0.05). Tumor necrosis factor-α (TNF-α) and interleukin-1β (IL-1β) were significantly increased in renal tissue 3 h after the operation in rats (<em>P</em> &lt;0.05), and gradually decreased 6 h, 12 h, and 24 h after CLP. Levels of miR-30a-5p and miR-30a-3p were significantly down-regulated at 3 h after LPS treatment (<em>P</em> &lt;0.05), and gradually decreased in HK-2 cells. One hour after LPS (10 µg/mL) treatment, TNF-α and IL-1β levels in HK-2 cells were significantly up-regulated (<em>P</em> &lt; 0.05), and they were markedly down-regulated after 3 h (<em>P</em> &lt;0.05). IL-6 expression levels began to rise after LPS treatment of cells, peaked at 6 h (<em>P</em> &lt;0.05), and then decreased to the initial level within a few hours. Stimulation with 10 µg/mL LPS promoted HK-2 cells proliferation, which was inhibited after miR-30a-3p-mimic transfection. Bioinformatics prediction identified 37 potential miR-30a-3p target genes, including transcriptional enhanced associate domain 1 (<em>TEAD1</em>). After transfection of HK-2 cells with miR-30a-3p mimics and miR-30a-3p inhibitor, <em>TEAD1</em> transcript was significantly up- and down-regulated, respectively (both <em>P</em> &lt;0.05). After LPS treatment (24 h), expression ","PeriodicalId":73799,"journal":{"name":"Journal of intensive medicine","volume":"4 2","pages":"Pages 231-239"},"PeriodicalIF":0.0,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2667100X23000609/pdfft?md5=59eb5345e21f729473bb2f9d369d6a63&pid=1-s2.0-S2667100X23000609-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135663637","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effect of music therapy on short-term psychological and physiological outcomes in mechanically ventilated patients: A randomized clinical pilot study 音乐疗法对机械通气患者短期心理和生理结果的影响:随机临床试验研究
Pub Date : 2024-03-27 DOI: 10.1016/j.jointm.2024.01.006

Background

Elevated anxiety levels are common in patients on mechanical ventilation (MV) and may challenge recovery. Research suggests music-based interventions may reduce anxiety during MV. However, studies investigating specific music therapy techniques, addressing psychological and physiological well-being in patients on MV, are scarce.

Methods

This three-arm randomized clinical pilot study was conducted with MV patients admitted to the intensive care unit (ICU) of Hospital San José in Bogotá, Colombia between March 7, 2022, and July 11, 2022. Patients were divided into three groups: intervention group 1 (IG1), music-assisted relaxation; intervention group 2 (IG2), patient-preferred therapeutic music listening; and control group (CG), standard care. The main outcome measure was the 6-item State-Anxiety Inventory. Secondary outcomes were: pain (measured with a visual analog scale), resilience (measured with the Brief Resilience Scale), agitation/sedation (measured with the Richmond Agitation–Sedation Scale), vital signs (including heart rate, blood pressure, oxygen saturation, and respiratory rate), days of MV, extubation success, and days in the ICU. Additionally, three patients underwent electroencephalography during the interventions.

Results

Data from 23 patients were analyzed in this study. The age range of the patients was 24.0–84.0 years, with a median age of 66.0 years (interquartile range: 57.0–74.0). Of the 23 patients, 19 were female (82.6%). No statistically significant differences between the groups were observed for anxiety (P=0.330), pain (P=0.624), resilience (P=0.916), agitation/sedation (P=0.273), length of ICU stay (P=0.785), or vital signs. A statistically significant difference between the groups was found for days of MV (P=0.019). Electroencephalography measurements showed a trend toward delta and theta band power decrease for two patients and a power increase on both beta frequencies (slow and fast) in the frontal areas of the brain for one patient.

Conclusions

In this pilot study, music therapy did not significantly affect the anxiety levels in patients on MV. However, the interventions were widely accepted by the staff, patients, and caregivers and were safe, considering the critical medical status of the participants. Further large-scale randomized controlled trials are needed to investigate the potential benefits of music therapeutic interventions in this population.

Trial Registration ISRCTN trial registry identifier: ISRCTN16964680

背景机械通气(MV)患者的焦虑水平普遍升高,这可能会影响患者的康复。研究表明,基于音乐的干预措施可以减轻机械通气期间的焦虑。方法这项三臂随机临床试验研究于 2022 年 3 月 7 日至 2022 年 7 月 11 日期间在哥伦比亚波哥大圣何塞医院重症监护室(ICU)对接受机械通气的患者进行了研究。患者被分为三组:干预组1(IG1),音乐辅助放松;干预组2(IG2),患者偏好的治疗性音乐聆听;对照组(CG),标准护理。主要结果测量为 6 项国家焦虑量表。次要结果包括:疼痛(用视觉模拟量表测量)、恢复力(用简易恢复力量表测量)、躁动/镇静(用里士满躁动-镇静量表测量)、生命体征(包括心率、血压、血氧饱和度和呼吸频率)、MV 天数、拔管成功率和在重症监护室的天数。此外,3 名患者在干预期间接受了脑电图检查。患者的年龄范围为 24.0-84.0 岁,中位年龄为 66.0 岁(四分位距:57.0-74.0)。23 名患者中有 19 名女性(82.6%)。两组患者在焦虑(P=0.330)、疼痛(P=0.624)、恢复力(P=0.916)、躁动/镇静(P=0.273)、重症监护室住院时间(P=0.785)或生命体征方面无明显统计学差异。两组之间在 MV 天数方面存在统计学差异(P=0.019)。脑电图测量结果显示,两名患者的 delta 和 theta 波段功率呈下降趋势,一名患者大脑额叶区域的两个 beta 频率(慢速和快速)的功率均呈上升趋势。然而,考虑到参与者的危重医疗状况,干预措施得到了工作人员、患者和护理人员的广泛接受,并且是安全的。需要进一步开展大规模的随机对照试验,以研究音乐治疗干预对这一人群的潜在益处:ISRCTN16964680
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引用次数: 0
Bloodstream infections in the era of the COVID-19 pandemic: Changing epidemiology of antimicrobial resistance in the intensive care unit 2019 年冠状病毒大流行时代的血流感染:重症监护病房抗菌药耐药性流行病学的变化
Pub Date : 2024-03-27 DOI: 10.1016/j.jointm.2023.12.004
Fotinie Ntziora, Efthymia Giannitsioti

The Coronavirus disease 2019 (COVID-19) pandemic increased the burden of critically ill patients who required hospitalization in the intensive care unit (ICU). Bacterial and fungal co-infections, including bloodstream infections (BSIs), increased significantly in ICU patients with COVID-19; this had a significant negative impact on patient outcomes. Reported data pertaining to BSI episodes from the ICU setting during the COVID-19 pandemic were collected and analyzed for this narrative review. We searched the PubMed database for articles published between March 2020 and October 2023; the terms “COVID-19” AND “bloodstream infections” AND “ICU” were used for the search. A total of 778 articles were retrieved; however, only 27 were exclusively related to BSIs in ICU patients with COVID-19. Data pertaining to the epidemiological characteristics, risk factors, characteristics of bacterial and fungal BSIs, patterns of antimicrobial resistance, and comparisons between ICU and non-ICU patients during and before the COVID-19 pandemic were obtained. Data on antimicrobial stewardship and infection-control policies were also included. The rates of BSI were found to have increased among ICU patients with COVID-19 than in non-COVID-19 patients and those admitted during the pre-pandemic period. Male gender, 60–70 years of age, increased body mass index, high Sequential Organ Failure Assessment scores at admission, prolonged hospital and ICU stay, use of central lines, invasive ventilation, and receipt of extracorporeal membrane oxygenation were all defined as risk factors for BSI. The use of immune modulators for COVID-19 appeared to increase the risk of BSI; however, the available data are conflicting. Overall, Enterococci, Acinetobacter baumannii, and Candida spp. emerged as prominent infecting organisms during the pandemic; along with Enterobacterales and Pseudomonas aeruginosa they had a significant impact on mortality. Multidrug-resistant organisms prevailed in the ICU, especially if antimicrobial resistance was established before the COVID-19 pandemic and were significantly associated with increased mortality rates. The unnecessary and widespread use of antibiotics further increased the prevalence of multidrug-resistant organisms during COVID-19. Notably, the data indicated a significant increase in contaminants in blood cultures; this highlighted the decline in compliance with infection-control measures, especially during the initial waves of the pandemic. The implementation of infection-control policies along with antibiotic stewardship succeeded in significantly reducing the rates of blood contamination and BSI pathogens. BSIs considerably worsened outcomes in patients with COVID-19 who were admitted to ICUs. Further studies are needed to evaluate adequate preventive and control measures that may increase preparedness for the future.

2019年冠状病毒病(COVID-19)大流行加重了需要在重症监护室(ICU)住院治疗的重症患者的负担。在感染 COVID-19 的重症监护病房患者中,细菌和真菌合并感染(包括血流感染 (BSI))显著增加;这对患者的预后产生了重大负面影响。本综述收集并分析了 COVID-19 大流行期间 ICU 中 BSI 病例的相关报告数据。我们在 PubMed 数据库中检索了 2020 年 3 月至 2023 年 10 月间发表的文章;检索词为 "COVID-19"、"血流感染 "和 "ICU"。共检索到 778 篇文章;但是,只有 27 篇文章完全与患有 COVID-19 的 ICU 患者的 BSI 相关。研究获得了有关流行病学特征、风险因素、细菌和真菌 BSIs 特征、抗菌素耐药性模式以及 COVID-19 大流行期间和之前 ICU 和非 ICU 患者之间的比较等方面的数据。此外还包括抗菌药物管理和感染控制政策方面的数据。研究发现,与非 COVID-19 患者和大流行前的患者相比,COVID-19 在 ICU 患者中的 BSI 感染率有所上升。男性、60-70 岁、体重指数增高、入院时器官功能衰竭序列评估评分高、住院时间和重症监护室停留时间长、使用中心管路、侵入性通气和接受体外膜氧合都被定义为 BSI 的风险因素。使用免疫调节剂治疗 COVID-19 似乎会增加 BSI 的风险,但现有数据并不一致。总体而言,肠球菌、鲍曼不动杆菌和念珠菌属是大流行期间的主要感染病菌;它们与肠杆菌和铜绿假单胞菌一起对死亡率产生了重大影响。多重耐药菌在重症监护病房中普遍存在,尤其是在 COVID-19 大流行之前就已产生抗菌素耐药性的情况下,这些耐药菌与死亡率的增加有很大关系。在 COVID-19 期间,不必要地广泛使用抗生素进一步增加了耐多药生物的流行。值得注意的是,数据显示血液培养物中的污染物显著增加;这凸显了感染控制措施合规性的下降,尤其是在大流行的最初几波。感染控制政策的实施以及抗生素管理成功地大幅降低了血液污染和 BSI 病原体的发生率。对于入住重症监护病房的 COVID-19 患者来说,BSI 会大大恶化他们的预后。需要进一步研究评估适当的预防和控制措施,以便为未来做好准备。
{"title":"Bloodstream infections in the era of the COVID-19 pandemic: Changing epidemiology of antimicrobial resistance in the intensive care unit","authors":"Fotinie Ntziora,&nbsp;Efthymia Giannitsioti","doi":"10.1016/j.jointm.2023.12.004","DOIUrl":"10.1016/j.jointm.2023.12.004","url":null,"abstract":"<div><p>The Coronavirus disease 2019 (COVID-19) pandemic increased the burden of critically ill patients who required hospitalization in the intensive care unit (ICU). Bacterial and fungal co-infections, including bloodstream infections (BSIs), increased significantly in ICU patients with COVID-19; this had a significant negative impact on patient outcomes. Reported data pertaining to BSI episodes from the ICU setting during the COVID-19 pandemic were collected and analyzed for this narrative review. We searched the PubMed database for articles published between March 2020 and October 2023; the terms “COVID-19” AND “bloodstream infections” AND “ICU” were used for the search. A total of 778 articles were retrieved; however, only 27 were exclusively related to BSIs in ICU patients with COVID-19. Data pertaining to the epidemiological characteristics, risk factors, characteristics of bacterial and fungal BSIs, patterns of antimicrobial resistance, and comparisons between ICU and non-ICU patients during and before the COVID-19 pandemic were obtained. Data on antimicrobial stewardship and infection-control policies were also included. The rates of BSI were found to have increased among ICU patients with COVID-19 than in non-COVID-19 patients and those admitted during the pre-pandemic period. Male gender, 60–70 years of age, increased body mass index, high Sequential Organ Failure Assessment scores at admission, prolonged hospital and ICU stay, use of central lines, invasive ventilation, and receipt of extracorporeal membrane oxygenation were all defined as risk factors for BSI. The use of immune modulators for COVID-19 appeared to increase the risk of BSI; however, the available data are conflicting. Overall, <em>Enterococci, Acinetobacter baumannii</em>, and <em>Candida</em> spp. emerged as prominent infecting organisms during the pandemic; along with <em>Enterobacterales</em> and <em>Pseudomonas aeruginosa</em> they had a significant impact on mortality. Multidrug-resistant organisms prevailed in the ICU, especially if antimicrobial resistance was established before the COVID-19 pandemic and were significantly associated with increased mortality rates. The unnecessary and widespread use of antibiotics further increased the prevalence of multidrug-resistant organisms during COVID-19. Notably, the data indicated a significant increase in contaminants in blood cultures; this highlighted the decline in compliance with infection-control measures, especially during the initial waves of the pandemic. The implementation of infection-control policies along with antibiotic stewardship succeeded in significantly reducing the rates of blood contamination and BSI pathogens. BSIs considerably worsened outcomes in patients with COVID-19 who were admitted to ICUs. Further studies are needed to evaluate adequate preventive and control measures that may increase preparedness for the future.</p></div>","PeriodicalId":73799,"journal":{"name":"Journal of intensive medicine","volume":"4 3","pages":"Pages 269-280"},"PeriodicalIF":0.0,"publicationDate":"2024-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2667100X24000057/pdfft?md5=848e5bd6aed77c0f723e4656794b0573&pid=1-s2.0-S2667100X24000057-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140399555","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The causal role of immune cells in susceptibility and severity of COVID-19: A bidirectional Mendelian randomization study 免疫细胞在 COVID-19 易感性和严重程度中的因果作用:双向孟德尔随机研究
Pub Date : 2024-03-21 DOI: 10.1016/j.jointm.2024.02.001
{"title":"The causal role of immune cells in susceptibility and severity of COVID-19: A bidirectional Mendelian randomization study","authors":"","doi":"10.1016/j.jointm.2024.02.001","DOIUrl":"10.1016/j.jointm.2024.02.001","url":null,"abstract":"","PeriodicalId":73799,"journal":{"name":"Journal of intensive medicine","volume":"4 4","pages":"Pages 537-538"},"PeriodicalIF":0.0,"publicationDate":"2024-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2667100X24000148/pdfft?md5=c5e592c7e70ab6e88cbe11d7720ce27f&pid=1-s2.0-S2667100X24000148-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140271788","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
期刊
Journal of intensive medicine
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