scholarly journals Serum HMGB1, DKK1, and ACE2 as a Function of Lung Injuries in COVID-19 Patients

2021 ◽  
Vol 29 (1) ◽  
pp. 39-46
Author(s):  
Hussein Kadhem Al-Hakeim ◽  
Jawad Kadhim Hammooz ◽  
Muntadher Mohammed Ali
Keyword(s):  
Lung Injury ◽  
Ct Scan ◽  
High Mobility ◽  
Control Group ◽  
Angiotensin Converting Enzyme 2 ◽  
Lung Abnormalities ◽  
Lung Injuries ◽  
Elisa Technique ◽  
Lower Spo2 ◽  
Serum Biochemical

There is a need for a biomarker for lung injury in COVID-19 patients. In the present study, an attempt was carried out to examine the role of Dickkopf-related protein 1 (DKK1), High-mobility group box 1 protein (HMGB1), angiotensin-converting enzyme 2 (ACE2) as a function for the lung abnormalities in CT-scan (LACTS). To perform the goals, DKK1, HMGB1, and ACE2 were measured in patients and controls using the ELISA technique. In contrast, other parameters were measured spectrophotometrically. The results showed decreased SpO2 and albumin and an increase in the serum biochemical parameters (glucose, urea, creatinine, D-dimer, ACE2, DKK1, and HMGB1) in COVID-19 patients compared with the control group. In COVID-19 patients, the percentages of the lung abnormalities in CT-scan% are 40.67±11.84. The results showed that those patients with LACTS patients are slightly older and have lower SpO2 than the patients without the LACTS group. ACE2 shows a significant correlation with SpO2 (ρ = 0.336, p<0.01) and a negative correlation with albumin (ρ = -0.197, p<0.05). Other parameters showed no significant correlation with the measured biomarkers. In conclusion, COVID-19 patients have higher ACE, DKK1, and HMGB1 indicating the involvement of the pathways of these biomarkers in the disease progression including lung injury.

High-mobility group box-1 protein induce inflammatory response after pulmonary injury

2015 ◽  
Vol 3 (3) ◽  
pp. 195-214
Author(s):  
Jingxian H Golemis ◽  
Laurie J Rudensky
Keyword(s):  
Lung Injury ◽  
Inflammatory Response ◽  
Intratracheal Instillation ◽  
High Mobility ◽  
Lavage Fluid ◽  
High Mobility Group ◽  
Saline Control ◽  
Enzyme Linked Immunosorbent Assay ◽  
Control Group ◽  
Chromosomal Protein

High-mobility group box 1 (HMGB1), a highly conserved non-histone chromosomal protein, was found to act as a potent proinflammatory cytokine and a mediator that participated in the development of systemic inflammatory response. Forty wild type C57BL/6 male (25-30gms) mice were randomly divided into three groups: saline control group; anti-HMGB1 antibody treated group and untreated group. Each group received intratracheal instillation twice per week for 4 consecutive months. 24 hours after the last exposure, anaesthetize the mice with chloral hydrate, bronchoalveolar lavage fluid was collected for cytokines analysis were measured by enzyme linked immunosorbent assay (ELISA). The level of the HMGB1 in lung tissue was determined by real-time PCR and western blot. Lung were fixed with 4% paraformaldehyde for histopathological detection. The serum level of HMGB1 increased after lung injury [peaked 2-5 hr] after lung injury, furthermore this upregulation in HMGB1 associated with increased proinflammatory cytokines [TNF-α, IL-6, IL-1β]. The injection of anti-HMGB1 antibody suppressed inflammatory reaction and improved the survival rate compared with control mice [71.3% vs. 29.4% P=0.031]

The Estimation of prostate specific antigen (PSA) concentrations in patients with prostatitis by fully automated ELISA technique.

2020 ◽  
Vol 3 (11) ◽  
pp. 1100-1104
Author(s):  
Hussein Naeem Aldhaheri ◽  
Ihsan Edan AlSaimary ◽  
Murtadha Mohammed ALMusafer
Keyword(s):  
Personal Information ◽  
Receptor Gene ◽  
Specific Antigen ◽  
Gene Clusters ◽  
Control Group ◽  
P Value ◽  
Group Data ◽  
Elisa Technique ◽  
And Control

      The Aim of this study was to determine Immunogenetic expression of  Toll-like receptor gene clusters related to prostatitis, to give acknowledge about Role of TLR in prostatitis immunity in men from Basrah and Maysan provinces. A case–control study included 135 confirmed prostatitis patients And 50 persons as a control group. Data about age, marital status, working, infertility, family history and personal information like (Infection, Allergy, Steroid therapy, Residency, Smoking, Alcohol Drinking, Blood group, Body max index (BMI) and the clinical finding for all patients of Prostatitis were collected. This study shows the effect of PSA level in patients with prostatitis and control group, with P-value <0.0001 therefore the study shows a positive significant between elevated PSA levels and Prostatitis.

scholarly journals High-Mobility Group Box 1 (HMGB1) and Autophagy in Acute Lung Injury (ALI): A Review

2019 ◽  
Vol 25 ◽  
pp. 1828-1837 ◽  
Author(s):  
Lihua Qu ◽  
Chao Chen ◽  
YangYe Chen ◽  
Yi Li ◽  
Fang Tang ◽  
...  
Keyword(s):  
Acute Lung Injury ◽  
Lung Injury ◽  
High Mobility ◽  
High Mobility Group

scholarly journals In vitro and in vivo assessment of the protective effect of sufentanil in acute lung injury

2021 ◽  
Vol 49 (2) ◽  
pp. 030006052098635
Author(s):  
Qi Gao ◽  
Ningqing Chang ◽  
Donglian Liu
Keyword(s):  
Acute Lung Injury ◽  
Lung Injury ◽  
Protective Effect ◽  
High Mobility ◽  
Terminal Deoxynucleotidyl Transferase ◽  
Inflammatory Factors ◽  
Luciferase Reporter ◽  
Hmgb1 Protein

Objectives To investigate the mechanisms underlying the protective effect of sufentanil against acute lung injury (ALI). Material and Methods Rats were administered lipopolysaccharide (LPS) by endotracheal instillation to establish a model of ALI. LPS was used to stimulate BEAS-2B cells. The targets and promoter activities of IκB were assessed using a luciferase reporter assay. Apoptosis of BEAS-2B cells was evaluated by terminal deoxynucleotidyl transferase dUTP nick end labeling. Results Sufentanil treatment markedly reduced pathological changes in lung tissue, pulmonary edema and secretion of inflammatory factors associated with ALI in vivo and in vitro. In addition, sufentanil suppressed apoptosis induced by LPS and activated NF-κB both in vivo and in vitro. Furthermore, upregulation of high mobility group box protein 1 (HMGB1) protein levels and downregulation of miR-129-5p levels were observed in vivo and in vitro following sufentanil treatment. miR-129-5p targeted the 3ʹ untranslated region and its inhibition decreased promoter activities of IκB-α. miR-129-5p inhibition significantly weakened the protective effect of sufentanil on LPS-treated BEAS-2B cells. Conclusion Sufentanil regulated the miR-129-5p/HMGB1 axis to enhance IκB-α expression, suggesting that sufentanil represents a candidate drug for ALI protection and providing avenues for clinical treatment.

scholarly journals Alterations of Serum Biochemical and Urinary Parameters in a Canine Population before and after Intravenous Contrast Administration

2021 ◽  
Vol 8 (8) ◽  
pp. 146
Author(s):  
Federica Cagnasso ◽  
Barbara Bruno ◽  
Claudio Bellino ◽  
Antonio Borrelli ◽  
Ilaria Lippi ◽  
...  
Keyword(s):  
Ct Scan ◽  
Urine Specific Gravity ◽  
Reference Ranges ◽  
Creatinine Ratio ◽  
Urine Protein ◽  
Intravenous Contrast ◽  
Creatinine Concentration ◽  
Iodinated Contrast ◽  
Serum Biochemical ◽  
Urinary Parameters

Intravenous iodinated contrast (IVIC) medium is routinely administered to dogs. Scattered information exists regarding the serum biochemical or urinary profiles associated with the administration of IVIC in dogs. The aim of the study was to describe, compare, and discuss from the perspective of previous studies the alterations in serum biochemical and urinary parameters before (T0) and within one week (T1) of the IVIC administration during routine computed tomography (CT) scan evaluation of 22 dogs. Mature dogs presenting for CT scan evaluation for preoperative oncology staging/surgical planning were included. T1 evaluation was performed within one week of IVIC administration. Statistically significant differences in serum total protein, albumin, chloride, calcium, and phosphorus concentrations, urine protein to creatinine ratio, and urine specific gravity were found between T1 and T0. At T1, the serum creatinine concentration was within reference ranges in all dogs but one. An increase in the urine protein to creatinine ratio was observed in four samples, one of which was non-proteinuric at T0. Changes in biochemistry and urine parameters between T0 and T1 were not considered clinically significant.

scholarly journals NF-κB and FosB mediate inflammation and oxidative stress in the blast lung injury of rats exposed to shock waves

2021 ◽  
Author(s):  
Hong Wang ◽  
Wenjuan Zhang ◽  
Jinren Liu ◽  
Junhong Gao ◽  
Le Fang ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Lung Injury ◽  
Shock Waves ◽  
Time Dependent ◽  
Inflammatory Factors ◽  
Control Group ◽  
Dependent Manner ◽  
Total Antioxidant ◽  
Blast Lung Injury ◽  
And Oxidative Stress

Abstract Blast lung injury (BLI) is the major cause of death in explosion-derived shock waves; however, the mechanisms of BLI are not well understood. To identify the time-dependent manner of BLI, a model of lung injury of rats induced by shock waves was established by a fuel air explosive. The model was evaluated by hematoxylin and eosin staining and pathological score. The inflammation and oxidative stress of lung injury were also investigated. The pathological scores of rats’ lung injury at 2 h, 24 h, 3 days, and 7 days post-blast were 9.75±2.96, 13.00±1.85, 8.50±1.51, and 4.00±1.41, respectively, which were significantly increased compared with those in the control group (1.13±0.64; P&lt;0.05). The respiratory frequency and pause were increased significantly, while minute expiratory volume, inspiratory time, and inspiratory peak flow rate were decreased in a time-dependent manner at 2 and 24 h post-blast compared with those in the control group. In addition, the expressions of inflammatory factors such as interleukin (IL)-6, IL-8, FosB, and NF-κB were increased significantly at 2 h and peaked at 24 h, which gradually decreased after 3 days and returned to normal in 2 weeks. The levels of total antioxidant capacity, total superoxide dismutase, and glutathione peroxidase were significantly decreased 24 h after the shock wave blast. Conversely, the malondialdehyde level reached the peak at 24 h. These results indicated that inflammatory and oxidative stress induced by shock waves changed significantly in a time-dependent manner, which may be the important factors and novel therapeutic targets for the treatment of BLI.

Pathological Alternations of Mediastinal Fat-Associated Lymphoid Cluster and Lung in a Streptozotocin-Induced Diabetic Mouse Model

2020 ◽  
pp. 1-14
Author(s):  
Yaser H.A. Elewa ◽  
Osamu Ichii ◽  
Teppei Nakamura ◽  
Yasuhiro Kon
Keyword(s):  
Endothelial Cells ◽  
Lung Injury ◽  
Mouse Model ◽  
Immune Cells ◽  
Inflammatory Markers ◽  
Inflammatory Marker ◽  
Diabetic Mouse ◽  
Control Group ◽  
Injury Progression

Diabetes is a devastating global health problem and is considered a predisposing factor for lung injury progression. Furthermore, previous reports of the authors revealed the role of mediastinal fat-associated lymphoid clusters (MFALCs) in advancing respiratory diseases. However, no reports concerning the role of MFALCs on the development of lung injury in diabetes have been published. Therefore, this study aimed to examine the correlations between diabetes and the development of MFALCs and the progression of lung injury in a streptozotocin-induced diabetic mouse model. Furthermore, immunohistochemical analysis for immune cells (CD3+ T-lymphocytes, B220+ B-lymphocytes, Iba1+ macrophages, and Gr1+ granulocytes), vessels markers (CD31+ endothelial cells and LYVE-1+ lymphatic vessels “LVs”), and inflammatory markers (TNF-α and IL-5) was performed. In comparison to the control group, the diabetic group showed lung injury development with a significant increase in MFALC size, immune cells, LVs, and inflammatory marker, and a considerable decrease of CD31+ endothelial cells in both lung and MFALCs was observed. Furthermore, the blood glucose level showed significant positive correlations with MFALCs size, lung injury, immune cells, inflammatory markers, and LYVE-1+ LVs in lungs and MFALCs. Thus, we suggest that the development of MFALCs and LVs could contribute to lung injury progression in diabetic conditions.

scholarly journals Tractotomy using the Penrose drain guide for deep lung injury caused by chest drainage: a case report

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Hironori Oyamatsu ◽  
Hideki Tsubouchi ◽  
Kunio Narita
Keyword(s):  
Lung Injury ◽  
Chest Tube ◽  
Drain Tube ◽  
Chest Drainage ◽  
Respiratory Condition ◽  
Penrose Drain ◽  
Multiple Rib Fractures ◽  
Lung Injuries ◽  
The Right ◽  
Damaged Vessel

Abstract Background Pulmonary tractotomy effectively treats deep pulmonary penetrating injuries; however, it requires the accurate insertion of forceps or a stapler into the wound tract. This report describes a case of tractotomy using the Penrose drain guide for a deep lung injury caused by chest drainage. Case presentation A 75-year-old man suffered multiple rib fractures and hemothorax. After admission, chest tube drainage was performed because the patient’s respiratory condition deteriorated due to increased right pleural effusion. However, as the chest tube was stabbing into the right upper lobe, a pulmonary tractotomy was performed to treat the injury. Cutting the visceral pleura just over the tip of the chest tube caused the tube to completely penetrate the lung. A Penrose drain tube was fixed to the chest tube, which was then removed. The Penrose drain tube completely penetrated the lung and was coupled to the anvil side of the stapler to guide it smoothly into the wound tract. After stapling left the wound tract open, selective suture ligation of the damaged vessel and bronchioles was performed. Conclusions Although the indications for tractotomy using the Penrose drain guide are limited, we believe that this technique can be useful in patients with deep stabbing or penetrating lung injuries with rod- or tube-shaped foreign body remnants.

scholarly journals Simulated aeromedical evacuation exacerbates burn induced lung injury: targeting mitochondrial DNA for reversal

2021 ◽  
Vol 8 (1) ◽  
Author(s):  
Meng-Jing Xiao ◽  
Xiao-Fang Zou ◽  
Bin Li ◽  
Bao-Long Li ◽  
Shi-Jian Wu ◽  
...  
Keyword(s):  
Lung Injury ◽  
Nlrp3 Inflammasome ◽  
Hypobaric Hypoxia ◽  
Dnase I ◽  
Treatment Intervention ◽  
Aeromedical Evacuation ◽  
Hypoxia Exposure ◽  
Histopathological Evaluation ◽  
Lung Injuries ◽  
Mda Content

Abstract Background Aeromedical evacuation of patients with burn trauma is an important transport method in times of peace and war, during which patients are exposed to prolonged periods of hypobaric hypoxia; however, the effects of such exposure on burn injuries, particularly on burn-induced lung injuries, are largely unexplored. This study aimed to determine the effects of hypobaric hypoxia on burn-induced lung injuries and to investigate the underlying mechanism using a rat burn model. Methods A total of 40 male Wistar rats were randomly divided into four groups (10 in each group): sham burn (SB) group, burn in normoxia condition (BN) group, burn in hypoxia condition (BH) group, and burn in hypoxia condition with treatment intervention (BHD) group. Rats with 30% total body surface area burns were exposed to hypobaric hypoxia (2000 m altitude simulation) or normoxia conditions for 4 h. Deoxyribonuclease I (DNase I) was administered systemically as a treatment intervention. Systemic inflammatory mediator and mitochondrial deoxyribonucleic acid (mtDNA) levels were determined. A histopathological evaluation was performed and the acute lung injury (ALI) score was determined. Malonaldehyde (MDA) content, myeloperoxidase (MPO) activity, and the nucleotide-binding oligomerization domain-like receptor family pyrin domain-containing 3 (NLRP3) inflammasome level were determined in lung tissues. Data among groups were compared using analysis of variance followed by Tukey’s test post hoc analysis. Results Burns resulted in a remarkably higher level of systemic inflammatory cytokines and mtDNA release, which was further heightened by hypobaric hypoxia exposure (P < 0.01). Moreover, hypobaric hypoxia exposure gave rise to increased NLRP3 inflammasome expression, MDA content, and MPO activity in the lung (P < 0.05 or P < 0.01). Burn-induced lung injuries were exacerbated, as shown by the histopathological evaluation and ALI score (P < 0.01). Administration of DNase I markedly reduced mtDNA release and systemic inflammatory cytokine production. Furthermore, the NLRP3 inflammasome level in lung tissues was decreased and burn-induced lung injury was ameliorated (P < 0.01). Conclusions Our results suggested that simulated aeromedical evacuation further increased burn-induced mtDNA release and exacerbated burn-induced inflammation and lung injury. DNase I reduced the release of mtDNA, limited mtDNA-induced systemic inflammation, and ameliorated burn-induced ALI. The intervening mtDNA level is thus a potential target to protect from burn-induced lung injury during aeromedical conditions and provides safer air evacuations for severely burned patients.

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