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metabolic responses in trauma

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https://www.readbyqxmd.com/read/29146453/cellular-and-biochemical-parameters-following-autotomy-and-ablation-mediated-cheliped-loss-in-the-chinese-mitten-crab-eriocheir-sinensis
#1
Xiao-Zhen Yang, Cong Zhang, Gen-Yong Huang, Min-Jie Xu, Yong-Xu Cheng, Zhi-Gang Yang, Qian Zhang, Yi-Yue Wang
In the pond culture of juvenile Eriocheir sinensis, various factors have frequently led to a high rate of autotomy and limb impairments. This study evaluated the differential effects of cheliped loss with autotomy and ablation on the short-term cellular and biochemical parameters of juvenile E. sinensis. In this study, compared with the crabs before treatment, the total hemocyte counts (THC), granulocyte counts (GC), hemocyte agglutination, phosphatase activity and glucose metabolism levels were significantly increased, while hyalinocyte counts (HC) and total antioxidant capacity (T-AOC) were significantly decreased within 3 h...
November 13, 2017: Developmental and Comparative Immunology
https://www.readbyqxmd.com/read/29129636/inflammation-mediated-muscle-metabolic-dysregulation-local-and-remote-to-the-site-of-major-abdominal-surgery
#2
Krishna K Varadhan, Dumitru Constantin-Teodosiu, Despina Constantin, Paul L Greenhaff, Dileep N Lobo
BACKGROUND & AIMS: Postoperative hyperglycaemia is common in patients having major surgery and is associated with adverse outcomes. This study aimed to determine whether bacteraemia contributed to postoperative systemic inflammation, and whether increases in the expression of muscle mRNAs and proteins reflecting increased muscle inflammation, atrophy and impaired carbohydrate oxidation were evident at the time of surgery, and both local and distant to the site of trauma, and could be associated with impaired glucoregulation...
November 2, 2017: Clinical Nutrition: Official Journal of the European Society of Parenteral and Enteral Nutrition
https://www.readbyqxmd.com/read/29118899/alterations-in-tendon-microenvironment-in-response-to-mechanical-load-potential-molecular-targets-for-treatment-strategies
#3
REVIEW
Mohamed B Fouda, Finosh G Thankam, Matthew F Dilisio, Devendra K Agrawal
Rotator cuff (RC) tendons could beinflicted in many ways with an eventual outcome of pain, weakness and disability, which represent a large burden on health care cost. However, optimal healing, either conservatively or with surgical intervention, remains an issue that needs further investigation. Disorders of the RC tendons may result from external factors like trauma, or internal factors through physiologic and metabolic derangement. Most RC tendon disorders may be asymptomatic and may result from an over-activity of the inflicted shoulder and its tendons...
2017: American Journal of Translational Research
https://www.readbyqxmd.com/read/29032144/peroxisome-proliferator-activated-receptor-%C3%AE-ppar%C3%AE-a-master-gatekeeper-in-cns-injury-and-repair
#4
REVIEW
Wei Cai, Tuo Yang, Huan Liu, Lijuan Han, Kai Zhang, Xiaoming Hu, Xuejing Zhang, Ke-Jie Yin, Yanqin Gao, Michael V L Bennett, Rehana K Leak, Jun Chen
Peroxisome proliferator-activated receptor γ (PPARγ) is a widely expressed ligand-modulated transcription factor that governs the expression of genes involved in inflammation, redox equilibrium, trophic factor production, insulin sensitivity, and the metabolism of lipids and glucose. Synthetic PPARγ agonists (e.g. thiazolidinediones) are used to treat Type II diabetes and have the potential to limit the risk of developing brain injury by mitigating the influence of comorbidities. If brain injury develops, PPARγ serves as a master gatekeeper of cytoprotective stress responses, improving the chances of survival and recovery of homeostatic equilibrium...
October 11, 2017: Progress in Neurobiology
https://www.readbyqxmd.com/read/29021720/burn-injury-review-of-pathophysiology-and-therapeutic-modalities-in-major-burns
#5
I Kaddoura, G Abu-Sittah, A Ibrahim, R Karamanoukian, N Papazian
Despite a considerable decrease in their incidence worldwide, burn injuries remain one of the commonest forms of trauma and account for a weighty proportion of trauma cases in health-care emergencies around the globe. Although the latest data reveal a substantial decline in burn-related mortality and hospital admissions in the US over the past three decades, severe thermal injuries continue to trigger devastating morbidity and significant mortality while their management remains a dynamic challenge for the entire medical and paramedical community...
June 30, 2017: Annals of Burns and Fire Disasters
https://www.readbyqxmd.com/read/28935892/bioenergetic-state-regulates-innate-inflammatory-responses-through-the-transcriptional-co-repressor-ctbp
#6
Yiguo Shen, David Kapfhamer, Angela M Minnella, Ji-Eun Kim, Seok Joon Won, Yanting Chen, Yong Huang, Ley Hian Low, Stephen M Massa, Raymond A Swanson
The innate inflammatory response contributes to secondary injury in brain trauma and other disorders. Metabolic factors such as caloric restriction, ketogenic diet, and hyperglycemia influence the inflammatory response, but how this occurs is unclear. Here, we show that glucose metabolism regulates pro-inflammatory NF-κB transcriptional activity through effects on the cytosolic NADH:NAD(+) ratio and the NAD(H) sensitive transcriptional co-repressor CtBP. Reduced glucose availability reduces the NADH:NAD(+) ratio, NF-κB transcriptional activity, and pro-inflammatory gene expression in macrophages and microglia...
September 22, 2017: Nature Communications
https://www.readbyqxmd.com/read/28920065/the-influence-of-sex-steroid-hormones-on-the-response-to-trauma-and-burn-injury
#7
REVIEW
K Al-Tarrah, N Moiemen, J M Lord
Trauma and related sequelae result in disturbance of homeostatic mechanisms frequently leading to cellular dysfunction and ultimately organ and system failure. Regardless of the type and severity of injury, gender dimorphism in outcomes following trauma have been reported, with females having lower mortality than males, suggesting that sex steroid hormones (SSH) play an important role in the response of body systems to trauma. In addition, several clinical and experimental studies have demonstrated the effects of SSH on the clinical course and outcomes following injury...
2017: Burns and trauma
https://www.readbyqxmd.com/read/28868043/metabolomics-profiling-as-a-diagnostic-tool-in-severe-traumatic-brain-injury
#8
REVIEW
Jussi P Posti, Alex M Dickens, Matej Orešič, Tuulia Hyötyläinen, Olli Tenovuo
Traumatic brain injury (TBI) is a complex disease with a multifaceted pathophysiology. Impairment of energy metabolism is a key component of secondary insults. This phenomenon is a consequence of multiple potential mechanisms including diffusion hypoxia, mitochondrial failure, and increased energy needs due to systemic trauma responses, seizures, or spreading depolarization. The degree of disturbance in brain metabolism is affected by treatment interventions and reflected in clinical patient outcome. Hence, monitoring of these secondary events in peripheral blood will provide a window into the pathophysiological course of severe TBI...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28844961/mitochondrial-dysfunction-in-rat-splenocytes-following-hemorrhagic-shock
#9
Marie Warren, Kumar Subramani, Richard Schwartz, Raghavan Raju
The regulation of mitochondrial function is critical in cellular homeostasis following hemorrhagic shock. Hemorrhagic shock results in fluid loss and reduced availability of oxygen and nutrients to tissues. The spleen is a secondary lymphoid organ playing a key role in 'filtering the blood' and in the innate and adaptive immune responses. To understand the molecular basis of hemorrhagic shock, we investigated the changes in splenocyte mitochondrial respiration, and concomitant immune and metabolic alterations...
October 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28817438/alternatively-activated-macrophages-drive-browning-of-white-adipose-tissue-in-burns
#10
Abdikarim Abdullahi, Christopher Auger, Mile Stanojcic, David Patsouris, Alexandra Parousis, Slava Epelman, Marc G Jeschke
OBJECTIVE: The aim of this study was to uncover the mediators and mechanistic events that facilitate the browning of white adipose tissue (WAT) in response to burns. BACKGROUND: In hypermetabolic patients (eg, burns, cancer), the browning of WAT has presented substantial clinical challenges related to cachexia, atherosclerosis, and poor clinical outcomes. Browning of the adipose tissue has recently been found to induce and sustain hypermetabolism. Although browning appears central in trauma-, burn-, or cancer-induced hypermetabolic catabolism, the mediators are essentially unknown...
August 16, 2017: Annals of Surgery
https://www.readbyqxmd.com/read/28810996/rhabdomyolysis-after-crawling-military-training
#11
Danit Atias-Varon, Haggai Sherman, Ran Yanovich, Yuval Heled
INTRODUCTION: Rhabdomyolysis is a syndrome characterized by muscle necrosis followed by release of intracellular muscle contents into the circulation. Exertional rhabdomyolysis (ER) occurs in response to nonfamiliar and/or excessive, prolonged, or repetitive exercises, with eccentric characteristics. In military populations, due to the type of intense, all out physical loads, ER is a significant threat, particularly when training under heat stress. However, many other etiologies exist, and clinical presentations vary greatly...
July 2017: Military Medicine
https://www.readbyqxmd.com/read/28768259/prospective-controlled-study-of-invasiveness-and-post-aggression-metabolism-in-patients-undergoing-robotic-assisted-radical-prostatectomy
#12
Andreas Martinschek, Lisa Stumm, Manuel Ritter, Elmar Heinrich, Christian Bolenz, Lutz Trojan
OBJECTIVES: To evaluate in a prospective, controlled, nonrandomized study the surgical stress and acute-phase systemic response in robotic-assisted laparoscopic prostatectomy (RALP) compared to open radical retro-pubic prostatectomy (ORRP) by measuring humoral mediators. METHODS: Forty consecutive patients undergoing either RALP or ORRP were prospectively included to assess the extent of systemic response. Blood samples were collected before surgery (T1), at the time of prostatectomy (T2), at the time of wound closure (T3), and 12 h (T4), 24 h (T5), and 48 h (T6) after surgery, and assayed for interleukins (IL-6 and IL-10), C-reactive protein (CRP), and hemoglobin...
2017: Urologia Internationalis
https://www.readbyqxmd.com/read/28758144/immune-signaling-mechanisms-of-ptsd-risk-and-symptom-development-insights-from-animal-models
#13
Jessica Deslauriers, Susan Powell, Victoria B Risbrough
Post-traumatic stress disorder (PTSD) is characterized by persistent re-experiencing of a traumatic event, avoidance, and increased arousal. The approved pharmacological treatments for PTSD have limited efficacy (~60% treatment response), supporting the need for identification of biomarkers and novel pharmacological therapies. Mounting evidence suggests increased inflammatory markers and altered immune gene expression correlate with the severity of symptoms in PTSD patients. However a causal role of immune signaling in development and maintenance of PTSD symptoms is not clear, as inflammation may also be an epiphenomenon related to metabolic and behavioral effects of stress...
April 2017: Current Opinion in Behavioral Sciences
https://www.readbyqxmd.com/read/28741388/comparative-proteomic-analysis-of-the-effect-of-the-four-herb-chinese-medicine-anbp-on-promoting-mouse-skin-wound-healing
#14
Li Chen, Qian Hou, Zhong-Zhi Zhou, Mei-Rong Li, Ling-Zhi Zhong, Xiang-Dong Deng, Zi-Ying Zhu, Zhong-Yi Cheng, Jun Zhu, Cong-Lian Xiang, Wen-Jun He, Xiao-Bing Fu
Traditional Chinese medicine has great potential to improve wound healing. ANBP, the mixture of 4 Chinese herbs- Agrimoniapilosa, Nelumbonucifera, Boswelliacarteri, and Pollen typhae-is effective in trauma treatment while its mechanism is still elusive. In this study, quantitative proteomics and bioinformatics analyses were performed to decipher the possible roles of ANBP in accelerated wound healing of mouse skin. Among all 3171 identified proteins, 90, 71, 80, and 140 proteins were found to be differently expressed in 6 hours, 3 days, 7 days, and 14 days ANBP-treated tissues compared with corresponding control tissues, respectively...
July 1, 2017: International Journal of Lower Extremity Wounds
https://www.readbyqxmd.com/read/28704681/cytokine-il1%C3%AE-and-lactate-as-markers-for-tissue-damage-in-spineboard-immobilisation-a-prospective-randomised-open-label-crossover-trial
#15
Baukje Hemmes, Luuk A de Wert, Peter R G Brink, Cees W J Oomens, Dan L Bader, Martijn Poeze
BACKGROUND: Spinal immobilisation using a rigid long spineboard is a well-established procedure in trauma care. During immobilisation, the body is exposed to high tissue-interface pressures. This may lead to a localised inflammatory response of the skin, which may be used to monitor the body's response to different types of immobilisation device. AIM: In this study we compared the standard rigid spineboard with a new soft-layered spineboard regarding tissue-interface pressures, skin redness as an indicator of reactive hyperaemia and cutaneous IL1α and lactate release...
June 23, 2017: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/28683495/osteoimmunology-influence-of-the-immune-system-on-bone-regeneration-and-consumption
#16
Andreas Limmer, Dieter C Wirtz
Background Stimulating bone regeneration is a central aim in orthopaedic and trauma surgery. Although the replacement of bone with artificial materials like cement or apatite helps to keep up bone stability, new bone often cannot be regenerated. Increasing research efforts have led to the clinical application of growth factors stimulating bone growth (e.g. bone morphogenic protein, BMP) and inhibitors preventing bone consumption (e.g. RANKL blocking antibodies). These factors mostly concentrate on stimulating osteoblast or preventing osteoclast activity...
June 2017: Zeitschrift Für Orthopädie und Unfallchirurgie
https://www.readbyqxmd.com/read/28682939/burn-trauma-acutely-increases-the-respiratory-capacity-and-function-of-liver-mitochondria
#17
Fredrick J Bohanon, Omar Nunez Lopez, David N Herndon, Xiaofu Wang, Nisha Bhattarai, Amina El Ayadi, Anesh Prasai, Jayson W Jay, Yesenia Rojas-Khalil, Tracy E Toliver-Kinsky, Celeste C Finnerty, Ravi S Radhakrishnan, Craig Porter
BACKGROUND: A complete understanding of the role of the liver in burn-induced hypermetabolism is lacking. We investigated the acute effect of severe burn trauma on liver mitochondrial respiratory capacity and coupling control as well as the signaling events underlying these alterations. METHODS: Male BALB/c mice (8-12 weeks) received full-thickness scald burns on ∼30% of the body surface. Liver tissue was harvested 24 hours post injury. Mitochondrial respiration was determined by high-resolution respirometry...
July 4, 2017: Shock
https://www.readbyqxmd.com/read/28625441/the-protective-effects-of-dexmedetomidine-on-ischemic-brain-injury-a-meta-analysis
#18
REVIEW
Lianxiang Jiang, Meizhu Hu, Yan Lu, Ya Cao, Yan Chang, Zeping Dai
BACKGROUND: Intracranial lesions, trauma or surgery-related damage activate immune inflammation and neuroendocrine responses, causing ischemic brain injury. Studies have shown that inflammatory cascade mediated by neuroendocrine hormones and proinflammatory mediators is implicated in the pathophysiology of ischemic brain injury. Alpha2-adrenoceptor agonists, dexmedetomidine, is widely used as neuroprotectants in anesthesia practice. However, it is still lack of a comprehensive meta-analysis to evaluate the neuroprotection of dexmedetomidine against ischemic brain injury via suppressing these two physiological responses...
August 2017: Journal of Clinical Anesthesia
https://www.readbyqxmd.com/read/28614388/osteoblast-specific-overexpression-of-complement-receptor-c5ar1-impairs-fracture-healing
#19
Stephanie Bergdolt, Anna Kovtun, Yvonne Hägele, Astrid Liedert, Thorsten Schinke, Michael Amling, Markus Huber-Lang, Anita Ignatius
The anaphylatoxin receptor C5aR1 plays an important role not only in innate immune responses, but also in bone metabolism and fracture healing, being highly expressed on immune and bone cells, including osteoblasts and osteoclasts. C5aR1 induces osteoblast migration, cytokine generation and osteoclastogenesis, however, the exact role of C5aR1-mediated signaling in osteoblasts is not entirely known. Therefore, we hypothesized that osteoblasts are essential target cells for C5a and that fracture healing should be disturbed in mice with an osteoblast-specific C5aR1 overexpression (Col1a1-C5aR1)...
2017: PloS One
https://www.readbyqxmd.com/read/28602695/-presumed-cardiac-arrest-in-children-and-young-adults-a-misnomer
#20
Katherine S Allan, Laurie J Morrison, Arnold Pinter, Jack V Tu, Paul Dorian
AIM: To use a novel methodology to assess the incidence and specific causes of Out-of-Hospital Cardiac Arrest (OHCA) within a young urban cohort. METHODS: All EMS attended OHCA patients in a large urban area, between 2009 and 2012, aged 2-45 years, treated or untreated, who died or survived, and that were designated as "no obvious cause" etiology by trained data abstractors were included. Using multisource (medical and coroner) records, an expert panel adjudicated the causes of the OHCAs as: confirmed cardiac causes, confirmed non- cardiac causes, and other causes...
June 7, 2017: Resuscitation
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