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Mohammad Ismail A, Forssten MP, Sarani B, Ribeiro MAF, Chang P, Cao Y, Hildebrand F, Mohseni S. Sex disparities in adverse outcomes after surgically managed isolated traumatic spinal injury. Eur J Trauma Emerg Surg 2024; 50:149-155. [PMID: 37191713 PMCID: PMC10923959 DOI: 10.1007/s00068-023-02275-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Accepted: 05/02/2023] [Indexed: 05/17/2023]
Abstract
BACKGROUND Traumatic spinal injury (TSI) encompasses a wide range of injuries affecting the spinal cord, nerve roots, bones, and soft tissues that result in pain, impaired mobility, paralysis, and death. There is some evidence suggesting that women may have different physiological responses to traumatic injury compared to men; therefore, this study aimed to investigate if there are any associations between sex and adverse outcomes following surgically managed isolated TSI. METHODS Using the 2013-2019 TQIP database, all adult patients with isolated TSI, defined as a spine AIS ≥ 2 with an AIS ≤ 1 in all other body regions, resulting from blunt force trauma requiring spinal surgery, were eligible for inclusion in the study. The association between the sex and in-hospital mortality as well as cardiopulmonary and venothromboembolic complications was determined by calculating the risk ratio (RR) after adjusting for potential confounding using inverse probability weighting. RESULTS A total of 43,756 patients were included. After adjusting for potential confounders, female sex was associated with a 37% lower risk of in-hospital mortality [adjusted RR (95% CI): 0.63 (0.57-0.69), p < 0.001], a 27% lower risk of myocardial infarction [adjusted RR (95% CI): 0.73 (0.56-0.95), p = 0.021], a 37% lower risk of cardiac arrest [adjusted RR (95% CI): 0.63 (0.55-0.72), p < 0.001], a 34% lower risk of deep vein thrombosis [adjusted RR (95% CI): 0.66 (0.59-0.74), p < 0.001], a 45% lower risk of pulmonary embolism [adjusted RR (95% CI): 0.55 (0.46-0.65), p < 0.001], a 36% lower risk of acute respiratory distress syndrome [adjusted RR (95% CI): 0.64 (0.54-0.76), p < 0.001], a 34% lower risk of pneumonia [adjusted RR (95% CI): 0.66 (0.60-0.72), p < 0.001], and a 22% lower risk of surgical site infection [adjusted RR (95% CI): 0.78 (0.62-0.98), p < 0.032], compared to male sex. CONCLUSION Female sex is associated with a significantly decreased risk of in-hospital mortality as well as cardiopulmonary and venothromboembolic complications following surgical management of traumatic spinal injuries. Further studies are needed to elucidate the cause of these differences.
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Affiliation(s)
- Ahmad Mohammad Ismail
- Department of Orthopedic Surgery, Orebro University Hospital, 701 85, Orebro, Sweden
- School of Medical Sciences, Orebro University, 702 81, Orebro, Sweden
| | - Maximilian Peter Forssten
- Department of Orthopedic Surgery, Orebro University Hospital, 701 85, Orebro, Sweden
- School of Medical Sciences, Orebro University, 702 81, Orebro, Sweden
| | - Babak Sarani
- Surgery and Emergency Medicine, Center of Trauma and Critical Care, George Washington University, Washington, DC, USA
| | - Marcelo A F Ribeiro
- Surgery, Pontifical Catholic University of São Paulo, São Paulo, Brazil
- Surgery, Khalifa University and Gulf Medical University, Abu Dhabi, United Arab Emirates
- Division of Trauma, Critical Care & Acute Care Surgery, Department of Surgery, Sheikh Shakhbout Medical City, Mayo Clinic, Abu Dhabi, United Arab Emirates
| | - Parker Chang
- Center for Trauma and Critical Care, Department of Surgery, George Washington University, Washington, DC, USA
| | - Yang Cao
- Clinical Epidemiology and Biostatistics, Faculty of Medicine and Health, School of Medical Sciences, Orebro University, 701 82, Orebro, Sweden
| | - Frank Hildebrand
- Department of Orthopedics, Trauma and Reconstructive Surgery, University Hospital RWTH Aachen, Pauwelsstrasse 30, 52074, Aachen, Germany
| | - Shahin Mohseni
- School of Medical Sciences, Orebro University, 702 81, Orebro, Sweden.
- Division of Trauma, Critical Care & Acute Care Surgery, Department of Surgery, Sheikh Shakhbout Medical City, Mayo Clinic, Abu Dhabi, United Arab Emirates.
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Gillies GS, Munley JA, Kelly LS, Pons EE, Kannan KB, Bible LE, Efron PA, Mohr AM. Anemia Recovery After Lung Contusion, Hemorrhagic Shock, and Chronic Stress Is Gender-Specific in a Rat Model. Surg Infect (Larchmt) 2023; 24:773-781. [PMID: 37903014 PMCID: PMC10659020 DOI: 10.1089/sur.2023.154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2023] Open
Abstract
Background: Severe trauma and hemorrhagic shock lead to persistent anemia. Although biologic gender is known to modulate inflammatory responses after critical illness, the impact of gender on anemia recovery after injury remains unknown. The aim of this study was to identify gender-specific differences in anemia recovery after critical illness. Materials and Methods: Male and proestrus female Sprague-Dawley rats (n = 8-9 per group) were subjected to lung contusion and hemorrhagic shock (LCHS) or LCHS with daily chronic stress (LCHS/CS) compared with naïve. Hematologic data, bone marrow progenitor growth, and bone marrow and liver gene transcription were analyzed on day seven. Significance was defined as p < 0.05. Results: Males lost substantial weight after LCHS and LCHS/CS compared with naïve males, while female LCHS rats did not compared with naive counterparts. Male LCHS rats had a drastic decrease in hemoglobin from naïve males. Male LCHS/CS rats had reduced colony-forming units-granulocyte, -erythrocyte, -monocyte, -megakaryocyte (CFU-GEMM) and burst-forming unit-erythroid (BFU-E) when compared with female counterparts. Naïve, LCHS, and LCHS/CS males had lower serum iron than their respective female counterparts. Liver transcription of BMP4 and BMP6 was elevated after LCHS and LCHS/CS in males compared with females. The LCHS/CS males had decreased expression of bone marrow pro-erythroid factors compared with LCHS/CS females. Conclusions: After trauma with or without chronic stress, male rats demonstrated increased weight loss, substantial decrease in hemoglobin level, dysregulated iron metabolism, substantial suppression of bone marrow erythroid progenitor growth, and no change in transcription of pro-erythroid factors. These findings confirm that gender is an important variable that impacts anemia recovery and bone marrow dysfunction after traumatic injury and shock in this rat model.
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Affiliation(s)
- Gwendolyn S. Gillies
- Department of Surgery and Sepsis and Critical Illness Research Center, University of Florida College of Medicine, Gainesville, Florida, USA
| | - Jennifer A. Munley
- Department of Surgery and Sepsis and Critical Illness Research Center, University of Florida College of Medicine, Gainesville, Florida, USA
| | - Lauren S. Kelly
- Department of Surgery and Sepsis and Critical Illness Research Center, University of Florida College of Medicine, Gainesville, Florida, USA
| | - Erick E. Pons
- Department of Surgery and Sepsis and Critical Illness Research Center, University of Florida College of Medicine, Gainesville, Florida, USA
| | - Kolenkode B. Kannan
- Department of Surgery and Sepsis and Critical Illness Research Center, University of Florida College of Medicine, Gainesville, Florida, USA
| | - Letitia E. Bible
- Department of Surgery and Sepsis and Critical Illness Research Center, University of Florida College of Medicine, Gainesville, Florida, USA
| | - Philip A. Efron
- Department of Surgery and Sepsis and Critical Illness Research Center, University of Florida College of Medicine, Gainesville, Florida, USA
| | - Alicia M. Mohr
- Department of Surgery and Sepsis and Critical Illness Research Center, University of Florida College of Medicine, Gainesville, Florida, USA
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Liu Z, Zhou W, Liu Q, Huan Z, Wang Q, Ge X. Pachymic Acid Prevents Hemorrhagic Shock-Induced Cardiac Injury by Suppressing M1 Macrophage Polarization and NF-[Formula: see text]B Signaling Pathway. THE AMERICAN JOURNAL OF CHINESE MEDICINE 2023; 51:2157-2173. [PMID: 37865871 DOI: 10.1142/s0192415x23500921] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2023]
Abstract
Hemorrhagic shock (HS) is the leading cause of death in trauma patients. Inflammation following HS can lead to cardiac damage. Pachymic acid (PA), a triterpenoid extracted from Poria cocos, has been found to possess various biological activities, including anti-inflammatory and anti-apoptotic properties. Our research aims to investigate the protective effects of PA against HS-induced heart damage and the underlying mechanisms involved. Male Sprague-Dawley rats were intraperitoneally injected with PA (7.5 or 15[Formula: see text]mg/kg) daily for three days. Subsequently, we created a rat model of HS by drawing blood through a catheter inserted into the femoral artery followed by resuscitation. The results revealed that HS led to abnormalities in hemodynamics, serum cardiac enzyme levels, and cardiac structure, as well as induced cardiac apoptosis. However, pretreatment with PA effectively alleviated these effects. PA-pretreatment also suppressed mRNA and protein levels of interleukin (IL)-1[Formula: see text], IL-6, and tumor necrosis factor [Formula: see text] (TNF-[Formula: see text]) in the heart tissues of HS rats. Additionally, PA-pretreatment reduced inflammatory cell infiltration and M1 macrophage polarization while exaggerating M2 polarization in HS rat hearts. The study observed a decreased proportion of the expression of of M1 macrophages (CD86[Formula: see text]) and their marker (iNOS), along with an increased proportion of the expression of M2 macrophages (CD206[Formula: see text]) and their marker (Arg-1). Notably, PA-pretreatment suppressed NF-[Formula: see text]B pathway activation via inhibiting NF-[Formula: see text]B p65 phosphorylation and its nuclear translocation. In conclusion, PA-pretreatment ameliorates HS-induced cardiac injury, potentially through its inhibition of the NF-[Formula: see text]B pathway. Therefore, PA treatment holds promise as a strategy for mitigating cardiac damage in HS.
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Affiliation(s)
- Zhenfeng Liu
- Department of Traditional Chinese Medicine, Wuxi 9th People's Hospital Affiliated to Soochow University Wuxi, Jiangsu 214000, P. R. China
| | - Wuming Zhou
- Department of Critical Care Medicine, Wuxi 9th People's Hospital Affiliated to Soochow University Wuxi, Jiangsu 214000, P. R. China
| | - Qingyang Liu
- Department of Clinical Laboratory, Wuxi 9th People's Hospital Affiliated to Soochow University Wuxi, Jiangsu 214000, P. R. China
| | - Zhirong Huan
- Department of Critical Care Medicine, Wuxi 9th People's Hospital Affiliated to Soochow University Wuxi, Jiangsu 214000, P. R. China
| | - Qiubo Wang
- Department of Clinical Laboratory, Wuxi 9th People's Hospital Affiliated to Soochow University Wuxi, Jiangsu 214000, P. R. China
| | - Xin Ge
- Department of Critical Care Medicine, Wuxi 9th People's Hospital Affiliated to Soochow University Wuxi, Jiangsu 214000, P. R. China
- Orthopedic Institution of Wuxi City, Wuxi, Jiangsu 214000, P. R. China
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Lang E, Abdou H, Edwards J, Patel N, Morrison JJ. State-of-the-Art Review: Sex Hormone Therapy in Trauma-Hemorrhage. Shock 2022; 57:317-326. [PMID: 34618728 DOI: 10.1097/shk.0000000000001871] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
ABSTRACT Trauma-hemorrhage is the leading cause of prehospital and early in-hospital deaths, while also significantly contributing to the later development of multisystem organ dysfunction/failure and sepsis. Common and advanced resuscitative methods would potentially demonstrate benefits in the prehospital setting; however, they face a variety of barriers to application and implementation. Thus, a dialogue around a novel adjunct has arisen, sex hormone therapy. Proposed candidates include estradiol and its derivatives, metoclopramide hydrochloride/prolactin, dehydroepiandrosterone, and flutamide; with each having demonstrated a range of salutary effects in several animal model studies. Several retrospective analyses have observed a gender-based dimorphism in mortality following trauma-hemorrhage, thus suggesting that estrogens contribute to this pattern. Trauma-hemorrhage animal models have shown estrogens offer protective effects to the cardiovascular, pulmonary, hepatic, gastrointestinal, and immune systems. Additionally, a series of survival studies utilizing 17α-ethinylestradiol-3-sulfate, a potent, water-soluble synthetic estrogen, have demonstrated a significant survival benefit and beneficial effects on cardiovascular function. This review presents the findings of retrospective clinical studies, preclinical animal studies, and discusses how and why 17α-ethinylestradiol-3-sulfate should be considered for investigation within a prospective clinical trial.
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Affiliation(s)
- Eric Lang
- R Adams Cowley Shock Trauma Center, University of Maryland Medical System, Baltimore, Maryland
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Abdou H, Morrison JJ, Edwards J, Patel N, Lang E, Richmond MJ, Elansary N, Gopalakrishnan M, Berman J, Hubbard WJ, Scalea TM, Chaudry IH. An estrogen (17α-ethinyl estradiol-3-sulfate) reduces mortality in a swine model of multiple injuries and hemorrhagic shock. J Trauma Acute Care Surg 2022; 92:57-64. [PMID: 34670961 DOI: 10.1097/ta.0000000000003434] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Although 17α-ethinyl estradiol-3-sulfate (EES) reduces mortality in animal models of controlled hemorrhage, its role in a clinically relevant injury model is unknown. We assessed the impact of EES in a swine model of multiple injuries and hemorrhage. METHODS The study was performed under Good Laboratory Practice, with 30 male uncastrated swine (25-50 kg) subjected to tibial fracture, pulmonary contusion, and 30% controlled hemorrhage for an hour. Animals were randomized to one of five EES doses: 0 (control), 0.3, 1, 3, and 5 mg/kg, administered postinjury. Subjects received no resuscitation and were observed for 6 hours or until death. Survival data were analyzed using Cox-proportional hazard regression. Left ventricular pressure-volume loops were used to derive preload recruitable stroke work as a measure of cardiac inotropy. Immediate postinjury preload recruitable stroke work values were compared with values at 1 hour post-drug administration. RESULTS Six-hour survival for the 0, 0.3, 1, 3, and 5 mg/kg groups was 0%, 50%, 33.3%, 16.7%, and 0%, respectively. Following Cox regression, the hazard (95% confidence interval) of death was significantly reduced in the 0.3 (0.22 [0.05-0.93]) and 1 (0.24 [0.06-0.89]) mg/kg groups but not the 3 (0.49 [0.15-1.64]) and 5 (0.46 [0.14-1.47]) mg/kg groups. Mean survival time was significantly extended in the 1 mg/kg group (246 minutes) versus the 0 mg/kg group (96 minutes) (p = 0.04, t test). At 1 hour post-drug administration, inotropy was significantly higher than postinjury values in the 0.3 and 1 mg/kg groups (p = 0.003 and p < 0.001, respectively). Inotropy was unchanged in the 3 and 5 mg/kg groups but significantly depressed in the control (p = 0.022). CONCLUSION Administration of EES even in the absence of fluid resuscitation reduces mortality and improves cardiac inotropy in a clinically relevant swine model of multiple injuries and hemorrhage. These findings support the need for a clinical trial in human trauma patients.
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Affiliation(s)
- Hossam Abdou
- From the R Adams Cowley Shock Trauma Center (H.A., J.J.M., J.E., N.P., E.L., M.J.R., N.E., T.M.S.), University of Maryland Medical System; Center for Translational Medicine (M.G.), University of Maryland School of Pharmacy, Baltimore; Fast Track Drugs and Biologics (J.B.), North Bethesda, Maryland; and Department of Surgery (W.J.H.), School of Medicine, University of Alabama at Birmingham, Birmingham, Alabama
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Wang H, Sun X, Ahmad S, Su J, Ferrario CM, Groban L. Estrogen modulates the differential expression of cardiac myocyte chymase isoforms and diastolic function. Mol Cell Biochem 2019; 456:85-93. [PMID: 30712071 DOI: 10.1007/s11010-018-03492-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2018] [Accepted: 12/22/2018] [Indexed: 01/21/2023]
Abstract
Chymases, a family of serine proteases with chymotryptic activity, play a significant role in cardiac angiotensin II (Ang II) formation from its substrate Ang-(1-12) in both human and rodent models. No studies, to date, have assessed the differences in enzymatic activity among these isoforms in Ang II formation, particularly in the cardiomyocyte (CM). Using PCR and DNA sequencing, we demonstrated that MCP-1, MCP-2, MCP-4, and MCP-5 mRNAs are expressed in the CM of both spontaneously hypertensive rats (SHR) and normotensive Wistar-Kyoto rats (WKY). While rMCP-1 and rMCP-5 gene transcripts were higher than that of other isoforms in both rat strains, WKY CM exhibits higher levels of rMCP-1 and rMCP-5 mRNAs compared to the SHR CM. Ovariectomy (OVX) increased the expression of rMCP-1 and rMCP-5 mRNAs in WKY. In SHR, OVX was associated with a blunted increase in rMCP-1 mRNA compared to OVX normotensive WKY. Chymase activity, measured as Ang II formation from Ang-(1-12), significantly correlated with rMCP-1 and rMCP-5 mRNA expression in both rat strains. Both rMCP-1 and rMCP-5 mRNA expressions were positively correlated with progressive diastolic dysfunction (increasing the ratio of early mitral inflow velocity-to-early mitral annular velocity, E/e') and expanding chamber dimensions or increasing left ventricular internal diameter end diastole. These data show rMCP-1 and rMCP-5 as the Ang II forming chymase isoforms participating in the loss of normal cardiac function due to OVX in rodents.
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Affiliation(s)
- Hao Wang
- Department of Anesthesiology, Wake Forest School of Medicine, Medical Center Blvd, Winston-Salem, NC, 27157, USA. .,Department of Internal Medicine-Molecular Medicine, Wake Forest School of Medicine, Medical Center Blvd, Winston-Salem, NC, 27157, USA.
| | - Xuming Sun
- Department of Anesthesiology, Wake Forest School of Medicine, Medical Center Blvd, Winston-Salem, NC, 27157, USA
| | - Sarfaraz Ahmad
- Department of Surgery, Wake Forest School of Medicine, Medical Center Blvd, Winston-Salem, NC, 27157, USA
| | - Jing Su
- Division of Public Health Sciences, Department of Biostatistical Sciences, Wake Forest School of Medicine, Medical Center Blvd, 27157, Winston-Salem, NC, USA
| | - Carlos Maria Ferrario
- Department of Surgery, Wake Forest School of Medicine, Medical Center Blvd, Winston-Salem, NC, 27157, USA.,Department of Physiology and Pharmacology, Wake Forest School of Medicine, Medical Center Blvd, Winston-Salem, NC, 27157, USA.,Division of Public Health Sciences, Department of Social Sciences and Health Policy, Wake Forest University School of Medicine, Medical Center Blvd, Winston-Salem, NC, 27157, USA
| | - Leanne Groban
- Department of Anesthesiology, Wake Forest School of Medicine, Medical Center Blvd, Winston-Salem, NC, 27157, USA.,Department of Internal Medicine-Molecular Medicine, Wake Forest School of Medicine, Medical Center Blvd, Winston-Salem, NC, 27157, USA
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Abstract
Despite efforts in prevention and intensive care, trauma and subsequent sepsis are still associated with a high mortality rate. Traumatic injury remains the main cause of death in people younger than 45 years and is thus a source of immense social and economic burden. In recent years, the knowledge concerning gender medicine has continuously increased. A number of studies have reported gender dimorphism in terms of response to trauma, shock and sepsis. However, the advantageous outcome following trauma-hemorrhage in females is not due only to sex. Rather, it is due to the prevailing hormonal milieu of the victim. In this respect, various experimental and clinical studies have demonstrated beneficial effects of estrogen for the central nervous system, the cardiopulmonary system, the liver, the kidneys, the immune system, and for the overall survival of the host. Nonetheless, there remains a gap between the bench and the bedside. This is most likely because clinical studies have not accounted for the estrus cycle. This review attempts to provide an overview of the current level of knowledge and highlights the most important organ systems responding to trauma, shock and sepsis. There continues to be a need for clinical studies on the prevailing hormonal milieu following trauma, shock and sepsis.
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Affiliation(s)
- Florian Bösch
- Department of General, Visceral, and Transplant Surgery, Ludwig Maximilians-University Munich, 81377, Munich, Germany
| | - Martin K Angele
- Department of General, Visceral, and Transplant Surgery, Ludwig Maximilians-University Munich, 81377, Munich, Germany
| | - Irshad H Chaudry
- Center for Surgical Research and Department of Surgery, University of Alabama at Birmingham, Birmingham, AL, 35294, USA.
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