SHOCKPub Date : 2025-01-01Epub Date: 2024-08-28DOI: 10.1097/SHK.0000000000002465
Ruiming Deng, Guiming Huang, Juan Zhou, Kai Zeng
{"title":"PLASMA PROTEOME, METABOLOME MENDELIAN RANDOMIZATION IDENTIFIES SEPSIS THERAPEUTIC TARGETS.","authors":"Ruiming Deng, Guiming Huang, Juan Zhou, Kai Zeng","doi":"10.1097/SHK.0000000000002465","DOIUrl":"10.1097/SHK.0000000000002465","url":null,"abstract":"<p><strong>Abstract: </strong>Background : The interrelation between the plasma proteome and plasma metabolome with sepsis presents a multifaceted dynamic that necessitates further research to elucidate the underlying causal mechanisms. Methods : Our investigation used public genome-wide association study data to explore the relationships among the plasma proteome, metabolome, and sepsis, considering different sepsis subgroup. Initially, two-sample Mendelian randomization established causal connections between the plasma proteome and metabolome with sepsis. Subsequently, multivariate and iterative Mendelian randomization analyses were performed to understand the complex interactions in plasma during sepsis. The validity of these findings was supported by thorough sensitivity analyses. Result : The study identified 25 plasma proteins that enhance risk and 34 that act as protective agents in sepsis. After P value adjustment (0.05/1306), ICAM5 emerged with a positive correlation to sepsis susceptibility ( P value = 2.14E-05, OR = 1.10, 95% CI = 1.05-1.15), with this significance preserved across three sepsis subgroup examined. Additionally, 29 plasma metabolites were recognized as risk factors, and 15 as protective factors for sepsis outcomes. After P value adjustment (0.05/997), elevated levels of 1,2,3-benzenetriol sulfate (2) was significantly associated with increased sepsis risk ( P value = 3.37E-05, OR = 1.18, 95% CI = 1.09-1.28). Further scrutiny revealed that this plasma metabolite notably augments the abundance of ICAM5 protein ( P value = 3.52E-04, OR = 1.11, 95% CI = 1.04-1.17), devoid of any detected heterogeneity, pleiotropy, or reverse causality. Mediated Mendelian randomization revealed ICAM5 mediated 11.9% of 1,2,3-benzenetriol sulfate (2)'s total effect on sepsis progression. Conclusion : This study details the causal link between the plasma proteome and metabolome with sepsis, highlighting the roles of ICAM5 and 1,2,3-benzenetriol sulfate (2) in sepsis progression, both independently and through crosstalk.</p>","PeriodicalId":21667,"journal":{"name":"SHOCK","volume":" ","pages":"52-63"},"PeriodicalIF":2.7,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142081395","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
SHOCKPub Date : 2025-01-01Epub Date: 2024-08-28DOI: 10.1097/SHK.0000000000002468
Joseph D Krocker, Madeline E Cotton, Janet R Ashley, Jacob B Schriner, Baron K Osborn, Yao-Wei Willa Wang, Charles S Cox, Charles E Wade
{"title":"RELATIONSHIP BETWEEN TRPM4 RS8104571 GENOTYPE, CIRCULATING TRPM4 AND SUR1, AND CLINICAL OUTCOME FOLLOWING TRAUMATIC BRAIN INJURY.","authors":"Joseph D Krocker, Madeline E Cotton, Janet R Ashley, Jacob B Schriner, Baron K Osborn, Yao-Wei Willa Wang, Charles S Cox, Charles E Wade","doi":"10.1097/SHK.0000000000002468","DOIUrl":"10.1097/SHK.0000000000002468","url":null,"abstract":"<p><strong>Abstract: </strong>The variant single nucleotide polymorphism rs8104571 has been associated with poor outcomes following traumatic brain injury (TBI) and is most prevalent in those of African ancestry. This single nucleotide polymorphism (SNP) resides within a gene coding for the TRPM4 protein, which complexes with SUR1 protein to create a transmembrane ion channel and is believed to contribute to cellular swelling and cell death in neurological tissue. Our study evaluates the relationship between circulating TRPM4 and SUR1, rs8104571 genotype, and clinical outcome in TBI patients. Trauma patients with moderate to severe TBI were included in this retrospective study. rs8104571 genotyping and admission plasma TRPM4 and SUR1 quantification were performed with real-time PCR and enzyme-linked immunosorbent assay (ELISA), respectively. Adequate plasma for TRPM4 and SUR1 ELISA quantification was available for 289 patients, 54 of whom were African American (AA). Plasma TRPM4 concentration was increased in those with a variant rs8104571 allele compared with wild type when controlling for demographics and injury characteristics in the overall cohort ( P = 0.04) and within the AA subgroup ( P = 0.01). There was no significant association between plasma TRPM4 or SUR1 and clinical outcome (each P > 0.05). Plasma TRPM4 abundance increased with acute kidney injury severity ( P = 0.02). The association between increased plasma TRPM4 and variant rs810457 supports an underlying mechanism involving increased neuroinflammation with a subsequent increase in the leakage of TRPM4 from the central nervous system into circulation. Alternative sources of plasma TRPM4 including the kidney cannot be excluded and may play a significant role in the pathophysiology of trauma as well.</p>","PeriodicalId":21667,"journal":{"name":"SHOCK","volume":" ","pages":"43-51"},"PeriodicalIF":2.7,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142126599","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
SHOCKPub Date : 2025-01-01Epub Date: 2024-10-28DOI: 10.1097/SHK.0000000000002489
Barbara Fazekas, Siobhán Hamon, Carolina De Marco Verissimo, Krystyna Cwiklinski, Jesús López Corrales, Siobhán Gaughan, Sinéad Ryan, Clifford C Taggart, Sinéad Weldon, Matthew D Griffin, John P Dalton, Richard Lalor
{"title":"PROTECTION OF MICE AGAINST CECAL LIGATION AND PUNCTURE-INDUCED POLYMICROBIAL SEPSIS BY A FASCIOLA HEPATICA HELMINTH DEFENSE MOLECULE.","authors":"Barbara Fazekas, Siobhán Hamon, Carolina De Marco Verissimo, Krystyna Cwiklinski, Jesús López Corrales, Siobhán Gaughan, Sinéad Ryan, Clifford C Taggart, Sinéad Weldon, Matthew D Griffin, John P Dalton, Richard Lalor","doi":"10.1097/SHK.0000000000002489","DOIUrl":"10.1097/SHK.0000000000002489","url":null,"abstract":"<p><strong>Abstract: </strong>Sepsis results from a dysregulated host immune response to infection and is responsible for ~11 million deaths each year. In the laboratory, many aspects of sepsis can be replicated using a cecal ligation and puncture model, which is considered the most clinically relevant rodent model of sepsis. In the present study, histological and biomarker multiplex analyses revealed that the cecal ligation and puncture model initiated a large-scale inflammatory response in mice by 24 h, with evidence of acute organ damage by 48-72 h. While many typical proinflammatory cytokine/chemokines were systemically elevated, a specific array including IL-10, eotaxin, MIP-1α, MIP-1β, MCP-1, and RANTES noticeably increased just prior to animals reaching the humane endpoint. Treatment of mice with 10 μg of a synthetic 68-amino acid peptide derived from an immunomodulatory molecule secreted by a parasitic worm of humans and livestock, F. hepatica , termed F. hepatica helminth defense molecule, potently suppressed the systemic inflammatory profile, protected mice against acute kidney injury, and improved survival between 48 and 72 h after procedure. These results suggest that the anti-inflammatory parasite-derived F. hepatica helminth defense molecule peptide has potential as a biotherapeutic treatment for sepsis.</p>","PeriodicalId":21667,"journal":{"name":"SHOCK","volume":" ","pages":"132-140"},"PeriodicalIF":2.7,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142507127","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"RESEARCH PROGRESS ON THE ROLE OF GUT MICROBIOTA AND ITS METABOLITES IN THE OCCURRENCE AND DEVELOPMENT OF SEPTIC-ASSOCIATED LIVER INJURY.","authors":"Jiangtao Chen, Yu Song, Wenqing Zeng, Lei Wang, Jinyan Qin, Lexin Fang, Yueping Ding","doi":"10.1097/SHK.0000000000002441","DOIUrl":"10.1097/SHK.0000000000002441","url":null,"abstract":"<p><strong>Abstract: </strong>Sepsis is a life-threatening organ dysfunction that occurs due to a dysregulated host response to infection. Septic-associated liver injury (SALI) has been closely linked to the prognosis and mortality of sepsis. Recent investigations have delved into the gut-liver axis and its association with SALI, identifying its pivotal role in the gut microbiota. Bacterial translocation and the onset of SALI can occur due to an imbalance in the gut microbiota, impairing the function of the gut barrier. Moreover, their metabolites might exacerbate or initiate SALI by modulating immune responses. Nevertheless, interventions to restore the balance of the gut microbiota, such as the administration of probiotics, fecal microbiota transplantation, or dietary adjustments, may ameliorate SALI and enhance the prognosis and survival rates of septic patients. This review aimed to elucidate the function of the gut microbiota in the genesis and procession of SALI and its potential therapeutic value, offering a deeper understanding of the pathogenesis and therapeutic avenues for SALI.</p>","PeriodicalId":21667,"journal":{"name":"SHOCK","volume":" ","pages":"4-10"},"PeriodicalIF":2.7,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142000636","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
SHOCKPub Date : 2025-01-01Epub Date: 2024-08-20DOI: 10.1097/SHK.0000000000002452
Yaqian Wen, Xiaoge Wang, Jie Zhang, Lei Rong, Wenjie Ren, Linqiang Tian, Liangming Liu
{"title":"THE PROTECTIVE EFFECT OF FASCIOTOMY COMBINED WITH HYPERTONIC SALINE FLUSHING FOR CRUSH SYNDROME IN RATS.","authors":"Yaqian Wen, Xiaoge Wang, Jie Zhang, Lei Rong, Wenjie Ren, Linqiang Tian, Liangming Liu","doi":"10.1097/SHK.0000000000002452","DOIUrl":"10.1097/SHK.0000000000002452","url":null,"abstract":"<p><strong>Abstract: </strong>In natural disasters such as earthquakes and landslides, the main problem that wounded survivors are confronted with is crush syndrome (CS). The aim of this study was to explore more convenient and effective early treatment measures for it. In the present study, we investigated the protective effect of fasciotomy combined with different concentration of hypertonic saline flushing with CS rats. CS model was prepared by compressing the buttocks and both lowering limbs of rats with 7.5 kg dumbbell for 4 h. The rats were divided into 10 groups, which were normal control group, model group, incision without flushing group, 0.45%, 0.9%, 3%, 5%, 7% saline group, 3%-0.45% and 7%-0.45% saline alternating flushing group, respectively. Six hours after the treatment, the blood was sampled for measurement of the potassium, calcium, glutamic oxaloacetic transaminase, glutamic pyruvic transaminase, creatinine, urea, myoglobin, and lactic acid content. The blood flow of the compressed tissue and kidneys, the pathological changes of the kidneys, and the survival rate of 3%-0.45% saline alternating flushing group were also observed. The experimental results showed that fasciotomy alone for treatment cannot improve the presentation of CS of rats. Instead, hypertonic saline flushing significantly improved the glutamic oxaloacetic transaminase, glutamic pyruvic transaminase, creatinine, urea indices, blood flow of muscles, and kidneys. It also enormously decreased the blood K+, myoglobin, lactic acid concentration, and slight increased the blood Ca 2+ . Among them, alternating flushing with 3%-0.45% saline had the best therapeutic effect on CS. Finally, it can be found that 3%-0.45% saline treatment regimen dramatically raised the survival rate of CS rats. All in all, this study suggests that fasciotomy combined with hypertonic saline flushing is a good therapeutic approach for CS.</p>","PeriodicalId":21667,"journal":{"name":"SHOCK","volume":" ","pages":"162-167"},"PeriodicalIF":2.7,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142005151","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
SHOCKPub Date : 2025-01-01Epub Date: 2024-10-21DOI: 10.1097/SHK.0000000000002474
Shiming Yang, Peter Hu, William Teeter, Douglas J Floccare, Howard Hu, Samuel M Galvagno
{"title":"COMPARISON OF CONTINUOUS VITAL SIGNS DATA ANALYSIS VERSUS VENOUS LACTATE FOR THE PREDICTION OF LIFESAVING INTERVENTIONS IN PATIENTS WITH TRAUMATIC SHOCK.","authors":"Shiming Yang, Peter Hu, William Teeter, Douglas J Floccare, Howard Hu, Samuel M Galvagno","doi":"10.1097/SHK.0000000000002474","DOIUrl":"10.1097/SHK.0000000000002474","url":null,"abstract":"<p><strong>Abstract: </strong>Introduction: The prehospital environment is fraught with operational constraints, making it difficult to assess the need for resources such as lifesaving interventions (LSI) for adults with traumatic injuries. While invasive methods such as lactate have been found to be highly predictive for estimating injury severity and resource requirements, noninvasive methods, to include continuous vital signs ( VS ), have the potential to provide prognostic information that can be quickly acquired, interpreted, and incorporated into decision making. In this work, we hypothesized that an analysis of continuous VS would have predictive capacity comparable to lactate and other laboratory tests for the prediction of injury severity, need for LSIs and intensive care unit admission. Methods: In this preplanned secondary analysis of 300 prospectively enrolled patients, venous blood samples were collected in the prehospital environment aboard a helicopter and analyzed with a portable lab device. Patients were transported to the primary adult resource center for trauma in the state of Maryland. Continuous VS were simultaneously collected. Descriptive statistics were used to describe the cohort and predictive models were constructed using a regularized gradient boosting framework with 10-fold cross-validation with additional analyses using Shapley additive explanations (SHAP). Results: Complete VS and laboratory data from 166 patients were available for analysis. The continuous VS models had better performance for prediction of receiving LSIs and intensive care unit length of stay compared to single (initial) VS measurements. The continuous VS models had comparable performance to models using only laboratory tests in predicting discharge within 24 h (continuous VS model: area under the receiver operating curve [AUROC] 0.71; 95% CI, 0.68-0.75 vs. lactate model: AUROC, 0.65; 95% CI, 0.68; 95% CI, 0.66-0.71). The model using all laboratory data yielded the highest sensitivity and sensitivity (AUROC, 0.77; 95% CI, 0.74-0.81). Discussion: The results from this study suggest that continuous VS obtained from autonomous monitors in an aeromedical environment may be helpful for predicting LSIs and the critical care requirements for traumatically injured adults. The collection and use of noninvasively obtained physiological data during the early stages of prehospital care may be useful for in developing user-friendly early warning systems for identifying potentially unstable trauma patients.</p>","PeriodicalId":21667,"journal":{"name":"SHOCK","volume":" ","pages":"64-71"},"PeriodicalIF":2.7,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142507117","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
SHOCKPub Date : 2025-01-01Epub Date: 2024-10-18DOI: 10.1097/SHK.0000000000002496
Emily Kao, Sahil Patel, Xu Wang, Kristyn Ringgold, Jessica M Snyder, Susan Stern, Eileen Bulger, Nathan White, Shahram Aarabi
{"title":"EFFECTS OF LOCAL HYPOTHERMIA ON LIMB VIABILITY IN A SWINE MODEL OF ACUTE LIMB ISCHEMIA DURING PROLONGED DAMAGE-CONTROL RESUSCITATION.","authors":"Emily Kao, Sahil Patel, Xu Wang, Kristyn Ringgold, Jessica M Snyder, Susan Stern, Eileen Bulger, Nathan White, Shahram Aarabi","doi":"10.1097/SHK.0000000000002496","DOIUrl":"10.1097/SHK.0000000000002496","url":null,"abstract":"<p><strong>Abstract: </strong>Background : New strategies are needed to mitigate further tissue injury during traumatic limb ischemia in cases requiring damage control resuscitation (DCR). Little is known about the pathophysiology and injury course in acute limb ischemia (ALI) with DCR in polytraumatized casualties. We therefore investigated the effects of therapeutic limb hypothermia in a swine model of ALI and DCR. Methods : Fifteen swine underwent a published 6-h DCR protocol of hemorrhage and then resuscitation. After hemorrhage, animals were randomized to 5°C or 15°C cooling of one hindlimb; the contralateral limb serving as an uncooled control. Physiologic variables, limb temperature, and limb tissue metabolites (glucose, lactate, and pyruvate) were measured throughout the DCR protocol. Muscle and nerve biopsies were obtained after the 6-h protocol. Results : Lactate and pyruvate levels were significantly lower in the cooled limbs than in the uncooled control limbs but did not differ between the 5°C and 15°C groups. Tissue glucose levels did not differ between the 5°C group, the 15°C group, and controls. Mean histologic muscle score was significantly higher in the 5°C group than in controls ( P = 0.03). Mean nerve histology scores did not differ between the 5°C and paired control limbs, or between the mean muscle and nerve histology scores of the 15°C and paired control limbs. Conclusion : Cooling to 15°C significantly reduced local tissue metabolites compared to paired controls, while producing no significant increase in histologic damage, whereas cooling to 5°C increased histologic muscle damage. These results suggest an approach to prevention of ischemic injury through local hypothermia but warrant further functional testing.</p>","PeriodicalId":21667,"journal":{"name":"SHOCK","volume":" ","pages":"155-161"},"PeriodicalIF":2.7,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142507119","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
SHOCKPub Date : 2025-01-01Epub Date: 2024-10-18DOI: 10.1097/SHK.0000000000002499
Yingfeng Gong, Na Wei, Peipei Shi, Gang Zhu
{"title":"CIRCTMCO3 ALLEVIATES SEPSIS-INDUCED ACUTE KIDNEY INJURY VIA REGULATING MIR-218-5P/ZEB2 AXIS.","authors":"Yingfeng Gong, Na Wei, Peipei Shi, Gang Zhu","doi":"10.1097/SHK.0000000000002499","DOIUrl":"10.1097/SHK.0000000000002499","url":null,"abstract":"<p><strong>Abstract: </strong>Background: Growing evidence has found the critical role of circular RNAs (circRNAs) in sepsis-induced acute kidney injury (S-AKI). CircTMCO3 has been found to be involved in tumor microenvironment changes of ovarian cancer. This study aimed to explore whether circTMCO3 functions in S-AKI, and if so, to elucidate the molecular mechanism. Methods: CircTMCO3 expression was analyzed in lipopolysaccharide (LPS)-induced HK-2 cells and in the kidney tissues of mice treated with cecal ligation and puncture (CLP), respectively. Furthermore, the effects of circTMCO3 on S-AKI and the related mechanisms were evaluated in both models through gain- and/or loss-of-function strategies. Results: CircTMCO3 expression was suppressed in both S-AKI models. Upregulation of circTMCO3 mitigated LPS-induced apoptosis, oxidative stress, and inflammation in HK-2 cells. In contrast, circTMCO3 downregulation exacerbated LPS-induced injuries in HK-2 cells. Intravenous injection of circTMCO3 lentivirus to increase circTMCO3 expression improved renal function and attenuated kidney injury in S-AKI mice, as evidenced by the decrease in serum creatinine and blood urea nitrogen concentrations, amelioration of tubular pathological injury, reduction of renal cell apoptosis, and mitigation of oxidative stress and proinflammatory cytokines (TNF-α, IL-1β, and IL-6). Moreover, circTMCO3 directly targeted miR-218-5p, and the mimic of which abolished the protective effect of circTMCO3 in cell models. ZEB2 was identified to be a target of miR-218-5p; its downregulation not only reversed the impacts of miR-218-5p inhibitor on S-AKI, but also mitigated the effects mediated by circTMCO3 upregulation in vitro . Conclusions: CircTMCO3 protects against S-AKI by regulating miR-218-5p/ZEB2 axis, thereby mediating antiapoptotic, antioxidant, and anti-inflammatory activities. This indicates that increasing circTMCO3 expression might be a future therapeutic method for S-AKI.</p>","PeriodicalId":21667,"journal":{"name":"SHOCK","volume":" ","pages":"168-175"},"PeriodicalIF":2.7,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142507116","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
SHOCKPub Date : 2025-01-01Epub Date: 2024-10-18DOI: 10.1097/SHK.0000000000002476
Meagan Scott Kingren, Jaycelyn Starr Hall, Taylor Joseph Ross, Mary Claire Barre, Abigail Barlow, Martin Morales, Lillie Danielle Treas, Robert Todd Maxson, Esther Teo, Craig Porter
{"title":"HOUSING TEMPERATURE ALTERS BURN-INDUCED HYPERMETABOLISM IN MICE.","authors":"Meagan Scott Kingren, Jaycelyn Starr Hall, Taylor Joseph Ross, Mary Claire Barre, Abigail Barlow, Martin Morales, Lillie Danielle Treas, Robert Todd Maxson, Esther Teo, Craig Porter","doi":"10.1097/SHK.0000000000002476","DOIUrl":"10.1097/SHK.0000000000002476","url":null,"abstract":"<p><strong>Abstract: </strong>Mice used in biomedical research are typically housed at ambient temperatures (22°C-24°C) below thermoneutrality (26°C-31°C). This chronic cold stress triggers a hypermetabolic response that may limit the utility of mice in modeling hypermetabolism in response to burns. To evaluate the effect of housing temperature on burn-induced hypermetabolism, mice were randomly assigned to receive sham, small, or large scald burns. Mice recovered for 21 days in metabolic phenotyping cages at 24°C or 30°C. Regardless of sex or sham/burn treatment, mice housed at 24°C had greater total energy expenditure ( P < 0.001), which was largely attributable to greater basal energy expenditure when compared to mice housed at 30°C ( P < 0.001). Thermoneutral housing (30°C) altered adipose tissue mass in a sex-dependent manner. Compared to sham and small burn groups, large burns resulted in greater water vapor loss, regardless of housing temperature ( P < 0.01). Compared to sham, large burns resulted in greater basal energy expenditure and total energy expenditure in mice housed at 24°C; however, this hypermetabolic response to large burns was blunted in female mice housed at 30°C, and absent in male mice housed at 30°C. Locomotion was significantly reduced in mice with large burns compared to sham and small burn groups, irrespective of sex or housing temperature ( P < 0.05). Housing at 30°C revealed sexual dimorphism in terms of the impact of burns on body mass and composition, where males with large burns displayed marked cachexia, whereas females did not. Collectively, this study demonstrates a sex-dependent role for housing temperature in influencing energetics and body composition in a rodent model of burn trauma.</p>","PeriodicalId":21667,"journal":{"name":"SHOCK","volume":" ","pages":"118-131"},"PeriodicalIF":2.7,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142507123","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
SHOCKPub Date : 2025-01-01Epub Date: 2024-10-18DOI: 10.1097/SHK.0000000000002495
Roman Kula, Marcin Osuchowski, Roman Kula
{"title":"UNDERSTANDING THE ROLE OF NT-proBNP IN SEPTIC SHOCK: BEYOND CARDIAC DYSFUNCTION.","authors":"Roman Kula, Marcin Osuchowski, Roman Kula","doi":"10.1097/SHK.0000000000002495","DOIUrl":"10.1097/SHK.0000000000002495","url":null,"abstract":"","PeriodicalId":21667,"journal":{"name":"SHOCK","volume":" ","pages":"30-32"},"PeriodicalIF":2.7,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142507129","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}