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pathophysiology of burn

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https://www.readbyqxmd.com/read/28431991/molecular-mechanisms-of-trauma-induced-acute-kidney-injury-inflammatory-and-metabolic-insights-from-animal-models
#1
David M Burmeister, Belinda I Gómez, Michael A Dubick
Trauma-induced acute kidney injury (AKI), such as after hemorrhagic shock (HS) or burn, remains a significant problem in the intensive care unit and is associated with increased mortality. The pathophysiology that drives AKI post-trauma is multi factorial, and includes both inflammatory and metabolic alterations. Identifying the systemic profile that contributes to AKI is crucial not only for early diagnosis, but also for identifying treatments that improve kidney function and maintaining long-term patient health...
April 18, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28427131/-recognizing-prevention-and-treatment-of-burn-sepsis-with-the-concept-of-holistic-integrative-medicine
#2
J N Huan
Sepsis remains a major cause of death in severe burns. The effect of sepsis management is influenced by its complicated pathophysiologic changes. In order to improve the outcome of burn sepsis, the predisposing factor of sepsis after burn analyzed by advanced technology, the early prevention, antibiotics therapy, and combined treatment in severe burns with sepsis are discussed using the concept of holistic integrative medicine.
April 20, 2017: Zhonghua Shao Shang za Zhi, Zhonghua Shaoshang Zazhi, Chinese Journal of Burns
https://www.readbyqxmd.com/read/28410931/a-model-of-recovery-from-inhalation-injury-and-cutaneous-burn-in-ambulatory-swine
#3
David M Burmeister, Matthew K McIntyre, Brendan Beely, Bryan Jordan, Kerfoot P Walker, James K Aden, Andriy Batchinsky, Kevin K Chung, Leopoldo C Cancio, Robert J Christy
Inhalation injury commonly accompanies thermal injury, increasing the likelihood of mortality and multiple organ dysfunction (MOD). Large animal models have given important insight into the pathophysiology of this injury; however recapitulating late MOD has remained difficult. The current report describes experiments using a smoke inhalation and burn model, with follow-up of ambulatory swine for 14days with bronchoscopy, CT scanning, and bronchoalveolar lavage fluid (BALF)/blood collection. Clinically, animals cleared airway damage in the first several days after-injury...
April 11, 2017: Burns: Journal of the International Society for Burn Injuries
https://www.readbyqxmd.com/read/28394042/metabolic-profiling-of-parkinson-s-disease-and-mild-cognitive-impairment
#4
Florence Burté, David Houghton, Hannah Lowes, Angela Pyle, Sarah Nesbitt, Alison Yarnall, Patrick Yu-Wai-Man, David J Burn, Mauro Santibanez-Koref, Gavin Hudson
BACKGROUND: Early diagnosis of Parkinson's disease and mild cognitive impairment is important to enable prompt treatment and improve patient welfare, yet no standard diagnostic test is available. Metabolomics is a powerful tool used to elucidate disease mechanisms and identify potential biomarkers. OBJECTIVES: The objective of this study was to use metabolic profiling to understand the pathoetiology of Parkinson's disease and to identify potential disease biomarkers...
April 10, 2017: Movement Disorders: Official Journal of the Movement Disorder Society
https://www.readbyqxmd.com/read/28381558/gain-of-function-mutation-of-a-voltage-gated-sodium-channel-nav1-7-associated-with-peripheral-pain-and-impaired-limb-development
#5
Brian S Tanaka, Phuong T Nguyen, Eray Yihui Zhou, Yong Yang, Vladimir Yarov-Yarovoy, Sulayman D Dib-Hajj, Stephen G Waxman
Dominant mutations in voltage-gated sodium channel NaV1.7 cause inherited erythromelalgia (IEM), a debilitating pain disorder characterized by severe burning pain and redness of the distal extremities. NaV1.7 is preferentially expressed within peripheral sensory and sympathetic neurons. Here, we describe a novel NaV1.7 mutation in an 11-year old male with under-development of the limbs, recurrent attacks of burning pain with erythema and swelling in his feet and hands. Frequency and duration of the episodes gradually increased with age and relief by cooling became less effective...
April 5, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28371612/current-experimental-models-of-burns
#6
Miao Qu, Mahtab Nourbakhsh
Burn injuries have a consistently high rate of mortality and morbidity and will remain a major health problem because burn injuries can result in repeat admissions for reconstruction and rehabilitation. Thus, addressing the pathophysiology of burns is crucial to improve both therapeutic interventions and patient care. A number of experimental burn models have been employed to study the systemic response of the whole organism and the more detailed cellular and molecular pathways affected by burns. However, an in-depth understanding and the useful application of experimental models are essential for effectively translating laboratory outcomes to clinical treatments...
February 2017: Discovery Medicine
https://www.readbyqxmd.com/read/28368916/topical-negative-pressure-wound-therapy-of-burned-hands-functional-outcomes
#7
Denis Ehrl, Paul I Heidekrueger, P Niclas Broer, Holger C Erne
Extensive partial- and full-thickness burns, especially of the hands, continue to pose a surgical challenge. With improved knowledge regarding fluid balance, burn pathophysiology, and lately also given the introduction of topical negative pressure wound (TNPW) therapy, treatment regimes have changed in many burn centers. The authors evaluated the results regarding long-term outcomes of patients with partial- and full-thickness burns of the hands treated with TNPW. Over a period of 72 months, 51 patients with 80 hand burns received TNPW treatment...
March 31, 2017: Journal of Burn Care & Research: Official Publication of the American Burn Association
https://www.readbyqxmd.com/read/28368347/the-role-of-th-17-cells-and-%C3%AE-%C3%AE-t-cells-in-modulating-the-systemic-inflammatory-response-to-severe-burn-injury
#8
REVIEW
Albert Kim, Thomas Lang, Meilang Xue, Aruna Wijewardana, Chris Jackson, John Vandervord
Burns are a global public health problem, accounting for an estimated 265,000 deaths annually. Inflammation is essential in supplying the growth factors, cytokines and chemokines needed to recruit T-cells and myeloid cells to the site of a burn injury for wound healing. However, major burns generate a marked pathophysiological inflammatory response through a widespread release of abundant pro-inflammatory mediators that predispose patients to a systemic inflammatory response syndrome, sepsis and multi-organ failure...
April 3, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28314935/a-disease-with-a-sweet-tooth-exploring-the-warburg-effect-in-alzheimer-s-disease
#9
REVIEW
Anna Atlante, Lidia de Bari, Antonella Bobba, Giuseppina Amadoro
After more than 80 years from the revolutionary discoveries of Otto Warburg, who observed high glucose dependency, with increased glycolysis and lactate production regardless of oxygen availability in most cancer cells, the 'Warburg effect' returns to the fore in neuronal cells affected by Alzheimer's disease (AD). Indeed, it seems that, in the mild phase of AD, neuronal cells "prefer" to use the energetically inefficient method of burning glucose by glycolysis, as in cancer, proving to become resistant to β-amyloid (Aβ)-dependent apoptosis...
March 17, 2017: Biogerontology
https://www.readbyqxmd.com/read/28292986/arginine-is-a-critical-substrate-for-the-pathogenesis-of-pseudomonas-aeruginosa-in-burn-wound-infections
#10
Jake Everett, Keith Turner, Qiuxian Cai, Vernita Gordon, Marvin Whiteley, Kendra Rumbaugh
Environmental conditions affect bacterial behavior and can greatly influence the course of an infection. However, the environmental cues that elicit bacterial responses in specific infection sites are relatively unknown. Pseudomonas aeruginosa is ubiquitous in nature and typically innocuous. However, it is also one of the most prevalent causes of fatal sepsis in burn wound patients. The aim of this study was to determine the impact of environmental factors, specifically the availability of arginine, on the pathogenesis of P...
March 14, 2017: MBio
https://www.readbyqxmd.com/read/28289356/management-of-burns-in-the-elderly
#11
G S Abu-Sittah, F M Chahine, H Janom
Burns are one of the most devastating forms of trauma worldwide. While geriatric burns are uncommon in the developing world - accounting for less than 5% of burns in South Asian and Middle Eastern countries - they account for almost 20% of burns in economically developed countries such as the USA. The elderly population in general is at higher risk for burn injury, moreover mortality rate, as well as severity of complications, is more pronounced in this group of patients. A review of the literature was conducted to evaluate risk factors as well as pathophysiological and immunological conditions that affect response to burn injury in the elderly population...
December 31, 2016: Annals of Burns and Fire Disasters
https://www.readbyqxmd.com/read/28271013/ultrahigh-resolution-oct-imaging-of-the-human-cornea
#12
René M Werkmeister, Sabina Sapeta, Doreen Schmidl, Gerhard Garhöfer, Gerald Schmidinger, Valentin Aranha Dos Santos, Gerold C Aschinger, Isabella Baumgartner, Niklas Pircher, Florian Schwarzhans, Anca Pantalon, Harminder Dua, Leopold Schmetterer
We present imaging of corneal pathologies using optical coherence tomography (OCT) with high resolution. To this end, an ultrahigh-resolution spectral domain OCT (UHR-OCT) system based on a broad bandwidth Ti:sapphire laser is employed. With a central wavelength of 800 nm, the imaging device allows to acquire OCT data at the central, paracentral and peripheral cornea as well as the limbal region with 1.2 µm x 20 µm (axial x lateral) resolution at a rate of 140 000 A-scans/s. Structures of the anterior segment of the eye, not accessible with commercial OCT systems, are visualized...
February 1, 2017: Biomedical Optics Express
https://www.readbyqxmd.com/read/28260266/burns-dressings
#13
Helen E Douglas, Fiona Wood
BACKGROUND: Burn injuries are common and costly; each year, there are more than 200,000 cases, costing the Australian community $150 million. Management of smaller burn injuries in the community can be improved by appropriate first aid, good burn dressings and wound management. This can reduce the risk of the burn becoming deeper or infected, and can potentially reduce the requirement for specialist review or surgery. OBJECTIVE: The objective of this article is to provide healthcare professionals with information about the pathophysiology of burn wound progression...
March 2017: Australian Family Physician
https://www.readbyqxmd.com/read/28248835/specific-etiologies-associated-with-the-multiple-organ-dysfunction-syndrome-in-children-part-2
#14
Jeffrey S Upperman, John C Bucuvalas, Felicia N Williams, Bruce A Cairns, Charles S Cox, Allan Doctor, Robert F Tamburro
OBJECTIVE: To describe a number of conditions and therapies associated with multiple organ dysfunction syndrome presented as part of the Eunice Kennedy Shriver National Institute of Child Health and Human Development Multiple Organ Dysfunction Workshop (March 26-27, 2015). In addition, the relationship between burn injuries and multiple organ dysfunction syndrome is also included although it was not discussed at the workshop. DATA SOURCES: Literature review, research data, and expert opinion...
March 2017: Pediatric Critical Care Medicine
https://www.readbyqxmd.com/read/28198133/left-ventricular-assist-device-therapy-in-advanced-heart-failure-patient-selection-and-outcomes
#15
REVIEW
Finn Gustafsson, Joseph G Rogers
Despite improvements in pharmacological therapy and pacing, prognosis in advanced heart failure (HF) remains poor, with a 1-year mortality of 25-50%. While heart transplantation provides excellent survival and quality of life for eligible patients, only a few can be offered this treatment due to shortage of donor organs. Implantable left ventricular assist device (LVAD) technology has improved considerably, and the currently used continuous flow devices may last >10 years in a patient. LVADs are being used increasingly both as bridge-to-transplantation and as destination therapy...
February 15, 2017: European Journal of Heart Failure
https://www.readbyqxmd.com/read/28195358/parkinson-s-disease-and-parkinson-s-disease-medications-have-distinct-signatures-of-the-gut-microbiome
#16
Erin M Hill-Burns, Justine W Debelius, James T Morton, William T Wissemann, Matthew R Lewis, Zachary D Wallen, Shyamal D Peddada, Stewart A Factor, Eric Molho, Cyrus P Zabetian, Rob Knight, Haydeh Payami
BACKGROUND: There is mounting evidence for a connection between the gut and Parkinson's disease (PD). Dysbiosis of gut microbiota could explain several features of PD. OBJECTIVE: The objective of this study was to determine if PD involves dysbiosis of gut microbiome, disentangle effects of confounders, and identify candidate taxa and functional pathways to guide research. METHODS: A total of 197 PD cases and 130 controls were studied. Microbial composition was determined by 16S rRNA gene sequencing of DNA extracted from stool...
February 14, 2017: Movement Disorders: Official Journal of the Movement Disorder Society
https://www.readbyqxmd.com/read/28190442/neurologic-complications-of-acute-environmental-injuries
#17
REVIEW
I R F da Silva, J A Frontera
Environmental injuries can result in serious neurologic morbidity. This chapter reviews neurologic complications of thermal burns, smoke inhalation, lightning strikes, electric injury, near drowning, decompression illness, as well as heat stroke and accidental hypothermia. Knowing the pathophysiology and clinical presentation of such injuries is essential to proper management of primary and secondary medical complications. This chapter highlights the most frequently encountered neurologic injuries secondary to common environmental hazards, divided into the topics: injuries related to fire, electricity, water, and the extremes of temperature...
2017: Handbook of Clinical Neurology
https://www.readbyqxmd.com/read/28164653/blast-burn-combined-injury-followed-by-immediate-seawater-immersion-induces-hemodynamic-changes-and-metabolic-acidosis-an-experimental-study-in-a-canine-model
#18
Yi Hu, Qingxiang Mao, Shaobing Ye, Ji Peng, Xiaoqin Gan, Xian Chen, Hong Yan
BACKGROUND: Severe burn-blast combined injury often causes systematic dysfunction related to blood coagulation, anticoagulation, and fibrinolysis. However, studies of burn-blast combined injury followed by immersion in seawater are rarely reported. METHODS: A canine burn-blast combined injury model was established including blast injury caused by explosion immediately followed by burning with gelatinized gasoline flames. The dogs were randomly divided into four groups: burn-blast injury (BB group); burn-blast injury followed by seawater immersion for four hours (BBI group); only immersed in seawater (I group); and sham treatment with no injury or immersion (S group)...
July 1, 2016: Clinical Laboratory
https://www.readbyqxmd.com/read/28158149/a-systematic-review-on-the-prevalence-etiology-and-pathophysiology-of-intrinsic-pain-in-dermal-scar-tissue
#19
Eveline Bijlard, Lisa Uiterwaal, Casimir A E Kouwenberg, Marc A M Mureau, Steven E R Hovius, Frank J P M Huygen
BACKGROUND: Scars can cause pain, even without symptoms of underlying nerve damage. A lack of knowledge on intrinsic scar pain hampers effective treatment of these complaints. OBJECTIVE: Aggregate current knowledge on the prevalence, etiology, and pathophysiology of intrinsic pain in dermal scars. STUDY DESIGN: Systematic review. SETTING: University Medical Center. METHODS: We searched the Embase, Medline, Cochrane central, CINAHL, Web-of-Science, and Pubmed databases with search terms: scar, skin, pain, and etiology/pathology, adding all synonyms of these terms...
February 2017: Pain Physician
https://www.readbyqxmd.com/read/28152319/evaluation-of-plasma-oxidative-stress-with-or-without-antioxidant-supplementation-in-superficial-partial-thickness-burn-patients-a-pilot-study
#20
Edoardo Raposio, Michele P Grieco, Edoardo Caleffi
BACKGROUND: Oxidative stress is one of the main causes of pathophysiological alterations observed during burn injury. The present pilot study aimed to determine whether a specific oral antioxidant supplementation could in any way influence free radical blood values in patients affected by superficial partial thickness burns. MATERIALS AND METHODS: Plasma oxidants and plasma antioxidant capacity were analysed in 20 superficial partial thickness burn patients for a 2-week period; patients were randomly divided into two groups, one of which was supported with a specifically designed oral antioxidant formula (Squalene 100 mg, Vitamin C 30 mg, Coenzyme Q10 10 mg, Zinc 5 mg, Beta Carotene 3...
February 2, 2017: Journal of Plastic Surgery and Hand Surgery
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