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https://www.readbyqxmd.com/read/29132725/computational-study-of-the-role-of-fluid-content-and-flow-on-the-lumbar-disc-response-in-cyclic-compression-replication-of-in-vitro-and-in-vivo-conditions
#1
Petra Velísková, Maxim Bashkuev, Aboulfazl Shirazi-Adl, Hendrik Schmidt
The intervertebral disc viscoelastic response is governed primarily by its fluid content and flow. Invivo measurements demonstrate that the disc volume, fluid content, height and nucleus pressure completely recover during resting even after diurnal loading with twice longer duration (16 vs. 8 h). In view of much longer periods required for the recovery of disc height and pressure in vitro, concerns have been raised on the fluid inflow through the endplates that might be hampered by clogged blood vessels post mortem...
November 3, 2017: Journal of Biomechanics
https://www.readbyqxmd.com/read/29101501/severe-hypernatraemic-dehydration-and-unconsciousness-in-a-care-dependent-inpatient-treated-with-empagliflozin
#2
Georg Gelbenegger, Nina Buchtele, Christian Schoergenhofer, Martin Roeggla, Michael Schwameis
A 66-year-old Caucasian male became unconscious 2 weeks after initiation of add-on therapy with empagliflozin for poorly controlled type 2 diabetes mellitus. The inpatient had recently suffered focal pontine stroke, rendering him bedridden and requiring increased nursing care, including assistance with drinking. The patient had received empagliflozin 10 mg once daily for glycaemic control. Investigations revealed hypernatraemia (164 mmol/l), a urine glucose level of 3935 mg/dl, and a creatinine level of 2...
November 3, 2017: Drug Safety—Case Reports
https://www.readbyqxmd.com/read/29094461/specific-dermatological-benefits-associated-with-quantities-of-lotion-transferred-to-the-skin
#3
Miranda A Farage, Juan Esquerra, Richard Cheng, Stacey Carpenter, Kathryn Bunasky, Denise Gutshall, Ann Lawrence, Andre Messerschmidt
BACKGROUND: A growing number of manufacturers are taking advantage of the ability of absorbent consumer products to deliver lotion to the skin. The lotion is included on these products to help protect the skin from adverse skin effects that can occur, including: 1) irritation, 2) over hydration of the stratum corneum, 3) dryness that can occur from extended exposure to highly absorbent consumer products and 4) changes in pH. OBJECTIVE: This manuscript presents results of a quantitative lotion transfer study of adult incontinence products...
November 2, 2017: Journal of Cosmetic Dermatology
https://www.readbyqxmd.com/read/29055384/the-central-nervous-system-pressure-histogram-in-hydrocephalus-and-hydromyelia
#4
H F Williams
This work makes proposals on the relationship between intracranial pressure (ICP) and hydrocephalus that changes over time with the evolution of the disease. This includes the cerebrospinal fluid (CSF) filling mechanism that leads to an increase in mode pressure if excess fluid volume exacerbates the obstructive process. Elevation in mode occurs because pressure in the central nervous system (CNS) represents a state of reduced flow, rather than an abnormality of volume. Diseases that cause elevated mode pressure by means of a primary edema can lead to hydrocephalus if there is sufficient time and obstruction to flow for the filling mechanism to act...
October 2017: Medical Hypotheses
https://www.readbyqxmd.com/read/29053067/the-proteome-of-pus-from-human-brain-abscesses-host-derived-neurotoxic-proteins-and-the-cell-type-diversity-of-cns-pus
#5
Bjørnar Hassel, Gustavo Antonio De Souza, Maria Ekman Stensland, Jugoslav Ivanovic, Øyvind Voie, Daniel Dahlberg
OBJECTIVE What determines the extent of tissue destruction during brain abscess formation is not known. Pyogenic brain infections cause destruction of brain tissue that greatly exceeds the area occupied by microbes, as seen in experimental studies, pointing to cytotoxic factors other than microbes in pus. This study examined whether brain abscess pus contains cytotoxic proteins that might explain the extent of tissue destruction. METHODS Pus proteins from 20 human brain abscesses and, for comparison, 7 subdural empyemas were analyzed by proteomics mass spectrometry...
October 20, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/29024278/why-do-sglt2-inhibitors-reduce-heart-failure-hospitalization-a-differential-volume-regulation-hypothesis
#6
REVIEW
K Melissa Hallow, Gabriel Helmlinger, Peter J Greasley, John J V McMurray, David W Boulton
The effect of a sodium glucose cotransporter 2 inhibitor (SGLT2i) in reducing heart failure hospitalization in the EMPA-REG OUTCOMES trial has raised the possibility of using these agents to treat established heart failure. We hypothesize that osmotic diuresis induced by SGLT2 inhibition, a distinctly different diuretic mechanism than other diuretic classes, results in greater electrolyte-free water clearance, and ultimately in greater fluid clearance from the interstitial fluid (IF) space than from the circulation, potentially resulting in congestion relief with minimal impact on blood volume, arterial filling, and organ perfusion...
October 12, 2017: Diabetes, Obesity & Metabolism
https://www.readbyqxmd.com/read/29023857/preceding-haemorrhagic-shock-as-a-detrimental-risk-factor-for-respiratory-distress-after-excessive-allogeneic-blood-transfusion
#7
R Masuda, T Iijima, R Kondo, Y Itoda, M Matsuhashi, S Hashimoto, T Kohira, N Kobayashi, H Okazaki
BACKGROUND AND OBJECTIVES: Whether transfusion-associated circulatory overload arises as a simple result of over-transfusion or requires another trigger remains unclear. Here, we examined whether respiratory distress could be reproduced by massive transfusion alone in an animal model. MATERIALS AND METHODS: A total of 20 anaesthetized swine were equipped with monitors. Allogeneic blood was obtained from 10 donor swine. A 4-stage loading protocol with each stage equivalent to 25% of the blood volume (BV) in the recipient swine was then used to infuse crystalloid (CR), hydroxyethyl starch (HES) or allogeneic blood (TR) (n = 5 each)...
October 11, 2017: Vox Sanguinis
https://www.readbyqxmd.com/read/29023316/septic-shock-resuscitation-in-the-first-hour
#8
Nicholas Simpson, Francois Lamontagne, Manu Shankar-Hari
PURPOSE OF REVIEW: We reviewed the recent advances in the initial approach to resuscitation of sepsis and septic shock patients. RECENT FINDINGS: Sepsis and septic shock are life-threatening emergencies. Two key interventions in the first hour include timely antibiotic therapy and resuscitation. Before any laboratory results, the need for resuscitation is considered if a patient with suspected infection has low blood pressure (BP) or impaired peripheral circulation found at clinical examination...
December 2017: Current Opinion in Critical Care
https://www.readbyqxmd.com/read/28922633/protein-extraction-into-the-bicontinuous-microemulsion-phase-of-a-water-sds-pentanol-dodecane-winsor-iii-system-effect-on-nanostructure-and-protein-conformation
#9
Douglas G Hayes, Ran Ye, Rachel N Dunlap, Matthew J Cuneo, Sai Venkatesh Pingali, Hugh M O'Neill, Volker S Urban
Bicontinuous microemulsions (BμEs), consisting of water and oil nanodomains separated by surfactant monolayers of near-zero curvature, are potentially valuable systems for purification and delivery of biomolecules, for hosting multiphasic biochemical reactions, and as templating media for preparing nanomaterials. We formed Winsor-III systems by mixing aqueous protein and sodium dodecyl sulfate (SDS) solutions with dodecane and 1-pentanol (cosurfactant) to efficiently extract proteins into the middle (BμE) phase...
September 7, 2017: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/28898404/high-versus-standard-volume-enteral-feeds-to-promote-growth-in-preterm-or-low-birth-weight-infants
#10
REVIEW
Thangaraj Abiramalatha, Niranjan Thomas, Vijay Gupta, Anand Viswanathan, William McGuire
BACKGROUND: Breast milk alone, given at standard recommended volumes (150 to 180 mL/kg/d), is not adequate to meet the protein, energy, and other nutrient requirements of growing preterm or low birth weight infants. One strategy that may be used to address these potential nutrient deficits is to give infants enteral feeds in excess of 200 mL/kg/d ('high-volume' feeds). This approach may increase nutrient uptake and growth rates, but concerns include that high-volume enteral feeds may cause feed intolerance, gastro-oesophageal reflux, aspiration pneumonia, necrotising enterocolitis, or complications related to fluid overload, including patent ductus arteriosus and bronchopulmonary dysplasia...
September 12, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28889390/dna-methylation-analysis-from-body-fluids
#11
Dimo Dietrich
Circulating cell-free DNA (ccfDNA) can be found in various body fluids, i.e., blood (serum and plasma), urine, pleural effusions, and ascites. While ccfDNA predominantly originates from physiological processes, a fraction might be related to pathological events, e.g., cancer. Aberrant DNA methylation, which is considered a hallmark of cancer, can be assessed accurately in ccfDNA. Consequently, DNA methylation testing in body fluids represents a powerful diagnostic tool in the clinical management of malignant diseases...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28885520/caring-for-trauma-patients-with-coexisting-heart-failure
#12
Karen Bergman Schieman, Kelley Pattison, Conor Early
The coexisting conditions of traumatic injury coupled with a comorbid condition such as heart failure create a complex scenario for the trauma nurse to manage. Initial care of the trauma patient includes following the Advanced Trauma Life Support guidelines and managing the airway, breathing, and circulation (ABC) of the patient. Once the airway is secure and breathing is managed, the team addresses circulation. At this point in the patient's care, the team typically does not know which, if any, comorbid conditions exist...
September 2017: Journal of Trauma Nursing: the Official Journal of the Society of Trauma Nurses
https://www.readbyqxmd.com/read/28864357/biorelevant-drug-solubility-enhancement-modeled-by-a-linear-solvation-energy-relationship
#13
Andreas Niederquell, Martin Kuentz
It is for the pharmaceutical sciences of vital importance to understand how drugs are solubilized in biorelevant media. However, the complexity of fasted state simulated intestinal fluid (FaSSIF) has so far hampered adequate solubility modeling. The present study focuses on apparently neutral compounds at physiological pH and a linear free energy relationship is introduced for biorelevant drug solubilization. Based on literature data of 40 compounds, the Abraham solvation descriptors were calculated from chemical structure to then predict the ratio of solubility enhancement log(SE) in FaSSIF compared to aqueous buffer solubility at pH 6...
August 31, 2017: Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28810996/rhabdomyolysis-after-crawling-military-training
#14
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/28794292/cross-linked-polyelectrolyte-and-its-function-in-adsorption-of-fluid-and-excess-nitrogen-waste-products-an-experimental-study-on-dialysate-effluent-fluid
#15
Hamid Tayebi Khosroshahi, Behzad Abedi, Sabalan Daneshvar, Effat Alizadeh, Mohammadreza Khalilzadeh, Yaghoub Abedi
INTRODUCTION: One of the most important issues in patients with chronic kidney disease is fluid retention and volume overload accompanied by retention of nitrogenous waste products and some electrolytes. Bowel fluid contains high levels of urea, creatinine, uric acid, and electrolytes, which make it a potential candidate for intestinal excretion of nitrogen wastes and electrolytes. Cross-linked polyelectrolyte (CLP) is a polymer that, given orally, absorbs excess fluid, electrolyte, and nitrogenous waste products...
July 2017: Iranian Journal of Kidney Diseases
https://www.readbyqxmd.com/read/28783702/natural-killer-cell-mediated-inflammation-resolution-is-disabled-in-severe-asthma
#16
Melody G Duvall, Cindy Barnig, Manuela Cernadas, Isabell Ricklefs, Nandini Krishnamoorthy, Nicole L Grossman, Nirav R Bhakta, John V Fahy, Eugene R Bleecker, Mario Castro, Serpil C Erzurum, Benjamin M Gaston, Nizar N Jarjour, David T Mauger, Sally E Wenzel, Suzy A Comhair, Andrea M Coverstone, Merritt L Fajt, Annette T Hastie, Mats W Johansson, Michael C Peters, Brenda R Phillips, Elliot Israel, Bruce D Levy
Severe asthma is typically characterized by chronic airway inflammation that is refractory to corticosteroids and associated with excess morbidity. Patients were recruited into the National Heart, Lung, and Blood Institute-sponsored Severe Asthma Research Program and comprehensively phenotyped by bronchoscopy. Bronchoalveolar lavage (BAL) cells were analyzed by flow cytometry. Compared with healthy individuals (n = 21), patients with asthma (n = 53) had fewer BAL natural killer (NK) cells. Patients with severe asthma (n = 29) had a marked increase in the ratios of CD4(+) T cells to NK cells and neutrophils to NK cells...
March 10, 2017: Science Immunology
https://www.readbyqxmd.com/read/28708664/esmolol-administration-to-control-tachycardia-in-an-ovine-model-of-peritonitis
#17
Koji Hosokawa, Fuhong Su, Fabio Silvio Taccone, Emiel Hendrik Post, Adriano José Pereira, Antoine Herpain, Jacques Creteur, Jean-Louis Vincent
BACKGROUND: Excessive adrenergic signaling may be harmful in sepsis. Using β-blockers to reduce sympathetic overactivity may modulate sepsis-induced cardiovascular, metabolic, immunologic, and coagulation alterations. Using a randomized ovine fecal peritonitis model, we investigated whether administration of a short-acting β-blocker, esmolol, could control tachycardia without deleterious effects on hemodynamics, renal perfusion, cerebral perfusion, cerebral metabolism, or outcome. METHODS: After induction of fecal peritonitis, 14 anesthetized, mechanically ventilated, and hemodynamically monitored adult female sheep were randomly assigned to receive a continuous intravenous infusion of esmolol to control heart rate between 80 and 100 bpm (n = 7) or a saline infusion (control group, n = 7)...
July 13, 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28695586/intra-operative-protective-mechanical-ventilation-in-lung-transplantation-a-randomised-controlled-trial
#18
G L Verbeek, P S Myles, G P Westall, E Lin, S L Hastings, S F Marasco, J Jaffar, A C Meehan
Primary graft dysfunction occurs in up to 25% of patients after lung transplantation. Contributing factors include ventilator-induced lung injury, cardiopulmonary bypass, ischaemia-reperfusion injury and excessive fluid administration. We evaluated the feasibility, safety and efficacy of an open-lung protective ventilation strategy aimed at reducing ventilator-induced lung injury. We enrolled adult patients scheduled to undergo bilateral sequential lung transplantation, and randomly assigned them to either a control group (volume-controlled ventilation with 5 cmH2 O, positive end-expiratory pressure, low tidal volumes (two-lung ventilation 6 ml...
August 2017: Anaesthesia
https://www.readbyqxmd.com/read/28660810/intravenous-fluid-and-electrolyte-administration-in-elective-gastrointestinal-surgery-mechanisms-of-excessive-therapy
#19
R G Simpson, J Quayle, N Stylianides, G Carlson, M Soop
INTRODUCTION While clinical guidelines stress the importance of the judicious perioperative intravenous fluid administration, data show that adherence to these protocols is poor. The reasons have not been identified. We therefore audited the magnitude and indications of fluid and electrolyte administration in a teaching hospital. We hypothesised that epidural analgesia is associated with excessive fluid therapy. MATERIALS AND METHODS Intravenous fluid and electrolyte administration during the day of surgery and the subsequent 2 days in consecutive patients undergoing elective gastrointestinal surgery between November 2013 and May 2014 were retrospectively audited...
July 2017: Annals of the Royal College of Surgeons of England
https://www.readbyqxmd.com/read/28632556/watertight-sealing-without-lumbar-drainage-for-incidental-ventral-dural-defect-in-transthoracic-spine-surgery-a-retrospective-review-of-53-cases
#20
Sang-Hyeop Jeon, Sang-Ho Lee, Yi Sheng Tsang, Tag-Geun Jung, Ki-Hyoung Moon, Gun Choi, Ketan D Dilip
STUDY DESIGN: A retrospective review. OBJECTIVES: To evaluate the therapeutic efficacy of the triple layer closure technique to establish watertight sealing without diversion of lumbar drainage, in preventing persistent incidental subarachnoid-pleural fistula and other neurological complications related to excessive drainage of cerebrospinal fluid (CSF) after dural defect in transthoracic ossified posterior longitudinal ligament (OPLL) surgery. SUMMARY OF BACKGROUND DATA: CSF leakage into the pleural cavity leads to unfavorable conditions for natural healing of incidental durotomy due to the negative pressure environment of the pleural space and lack of wound healing around the bony cavity near the decompressed spinal cord...
July 2017: Clinical Spine Surgery
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