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https://www.readbyqxmd.com/read/29052006/risk-factors-for-and-the-prevention-of-acute-kidney-injury-after-abdominal-surgery
#1
REVIEW
Yongbo An, Kai Shen, Yingjiang Ye
Postoperative acute kidney injury in patients undergoing abdominal surgery is not rare and often results in bad outcomes for patients. The incidence of postoperative acute kidney injury is hard to evaluate reliably due to its non-unified definitions in different studies. Risk factors for acute kidney injury specific to abdominal surgery include preoperative renal insufficiency, intraabdominal hypertension, blood transfusion, bowel preparation, perioperative dehydration, contrast agent and nephrotoxic drug use...
October 19, 2017: Surgery Today
https://www.readbyqxmd.com/read/29047195/hepatic-transudation-barrier-properties
#2
R M Dongaonkar, R H Stewart, C M Quick, K L Uray, C S Cox, G A Laine
OBJECTIVE: Fluid and protein continuously transudes from the surface of the liver. Despite a common understanding that transudation plays a critical role in hepatic interstitial and peritoneal fluid balance, transudation from the entire liver has not been studied. Therefore, the goal of the present work was to provide the first direct measurement of the hepatic transudation rate and transudation barrier properties. METHODS: Transudation rates were determined by collecting transudate from the entire liver...
October 19, 2017: Microcirculation: the Official Journal of the Microcirculatory Society, Inc
https://www.readbyqxmd.com/read/29043393/characterization-of-a-set-of-abdominal-neuroendocrine-cells-that-regulate-stress-physiology-using-colocalized-diuretic-peptides-in-drosophila
#3
Meet Zandawala, Richard Marley, Shireen A Davies, Dick R Nässel
Multiple neuropeptides are known to regulate water and ion balance in Drosophila melanogaster. Several of these peptides also have other functions in physiology and behavior. Examples are corticotropin-releasing factor-like diuretic hormone (diuretic hormone 44; DH44) and leucokinin (LK), both of which induce fluid secretion by Malpighian tubules (MTs), but also regulate stress responses, feeding, circadian activity and other behaviors. Here, we investigated the functional relations between the LK and DH44 signaling systems...
October 17, 2017: Cellular and Molecular Life Sciences: CMLS
https://www.readbyqxmd.com/read/29042952/protective-effect-of-ulinastatin-on-severe-pulmonary-infection-under-immunosuppression-and-its-molecular-mechanism
#4
Wenshuai Liu, Guozhong Pang, Shengyan Wang, Aiqin Sun
The objective of the present study was to investigate the protective effect of ulinastatin on severe pulmonary infection under immunosuppression, and its molecular mechanism. Mice were treated with methylprednisolone and lipopolysaccharide (LPS) to establish the model of severe pulmonary infection under immunosuppression. Mice were randomly divided into group A (model group; treated with equal volumes of saline), group B (treated with 1×10(5) U/kg ulinastatin), and group C (normal control group). Bronchoalveolar lavage fluid (BALF) was collected, and the concentrations of cytokines in BALF were measured by enzyme-linked immunosorbent assay (ELISA)...
October 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29041973/the-establishment-and-application-of-preimplantation-genetic-haplotyping-in-embryo-diagnosis-for-reciprocal-and-robertsonian-translocation-carriers
#5
Shuo Zhang, Caixia Lei, Junping Wu, Jing Zhou, Haiyan Sun, Jing Fu, Yijuan Sun, Xiaoxi Sun, Daru Lu, Yueping Zhang
BACKGROUND: Preimplantation genetic diagnosis (PGD) is now widely used to select embryos free of chromosomal copy number variations (CNV) from chromosome balanced translocation carriers. However, it remains a difficulty to distinguish in embryos between balanced and structurally normal chromosomes efficiently. METHODS: For this purpose, genome wide preimplantation genetic haplotyping (PGH) analysis was utilized based on single nucleotide polymorphism (SNP) microarray...
October 17, 2017: BMC Medical Genomics
https://www.readbyqxmd.com/read/29040221/thermoeffector-responses-at-a-fixed-rate-of-heat-production-in-heart-failure-patients
#6
Bryce N Balmain, Ollie Jay, Norman R Morris, Kenji Shiino, Glenn M Stewart, Rohan Jayasinghe, Jonathan Chan, Surendran Sabapathy
PURPOSE: Heart failure (HF) patients appear to exhibit altered thermoregulatory responses during exercise in the heat. However, the extent to which these responses are altered due to physiological impairments independently of biophysical factors associated with differences in metabolic heat production (Hprod), evaporative heat balance requirements (Ereq) and/or body size, is presently unclear. Therefore, we examined thermoregulatory responses in 10 HF and 10 age-matched controls (CON) similar in body size during exercise at a fixed rate of Hprod, and therefore Ereq in a 30°C environment...
October 16, 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/29040215/role-of-receptor-for-advanced-glycation-end-products-in-regulating-lung-fluid-balance-in-lipopolysaccharide-induced-acute-lung-injury-and-infection-related-acute-respiratory-distress-syndrome
#7
Hao Wang, Tao Wang, Zhicheng Yuan, Yufang Cao, Yongfang Zhou, Junyun He, Yongchun Shen, Ni Zeng, Luqi Dai, Fuqiang Wen, Lei Chen
Receptor for advanced glycation end products (RAGE) is implicated in inflammatory responses in acute lung injury (ALI)/acute respiratory distress syndrome (ARDS), but its role in pulmonary edema formation remains unclear, especially in infection-related ARDS mainly caused by pneumonia or sepsis. In this study, we investigated the role of RAGE in alveolar fluid regulation by using RAGE gene knockout (RAGE) mice in a murine ALI model induced by lipopolysaccharide (LPS), and by comparing soluble RAGE (sRAGE) levels in serum and bronchial alveolar lavage fluid (BALF) between ARDS patients and control subjects...
October 16, 2017: Shock
https://www.readbyqxmd.com/read/29038362/cdc42-activation-couples-fluid-shear-stress-to-apical-endocytosis-in-proximal-tubule-cells
#8
Sohinee Bhattacharyya, Frédéric G Jean-Alphonse, Venkatesan Raghavan, Jennifer C McGarvey, Youssef Rbaibi, Jean-Pierre Vilardaga, Marcelo D Carattino, Ora A Weisz
Cells lining the kidney proximal tubule (PT) respond to acute changes in glomerular filtration rate and the accompanying fluid shear stress (FSS) to regulate reabsorption of ions, glucose, and other filtered molecules and maintain glomerulotubular balance. Recently, we discovered that exposure of PT cells to FSS also stimulates an increase in apical endocytic capacity (Raghavan et al. PNAS, 111:8506-8511, 2014). We found that FSS triggered an increase in intracellular Ca(2+) concentration ([Ca(2+)]i) that required release of extracellular ATP and the presence of primary cilia...
October 2017: Physiological Reports
https://www.readbyqxmd.com/read/29038277/dilution-factor-of-quantitative-bacterial-cultures-obtained-by-bronchoalveolar-lavage-in-patients-with-ventilator-associated-bacterial-pneumonia-implications-for-optimal-antimicrobial-therapy-ventilator-associated-bacterial-pneumonia-study-group
#9
George L Drusano, Michael L Corrado, Gino Girardi, Evelyn J Ellis-Grosse, Richard G Wunderink, Helen Donnelly, Kenneth V Leeper, Mona Brown, Tasnova Malek, Robert Duncan Hite, Michelle Ferrari, Danijela Djureinovic, Marin H Kollef, Lisa Mayfield, Ann Doyle, Jean Chastre, Alain Combes, Thomas J Walsh, Krisztina Dorizas, Hassan Alnuaimat, Brooks Edward Morgan, Jordi Rello, Cristopher Alan Mazo Torre, Ronald N Jones, Robert K Flamm, Leah Woosley, Paul G Ambrose, Sujata Bhavnani, Christopher M Rubino, Catharine C Bulik, Arnold Louie, Michael Vicchiarelli, Colleen Berman
Ventilator-Associated Bacterial Pneumonia (VABP) is a difficult therapeutic problem. Considerable controversy exists regarding the optimal chemotherapy for this entity. The recent IDSA/ATS guidelines recommended a 7-day therapeutic course for VABP based on the balance of no negative impact on all-cause mortality, less resistance emergence and fewer antibiotic days counterbalanced with a higher relapse rate for patients whose pathogen is a non-fermenter. The bacterial burden causing an infection will have a substantial impact on treatment outcome and resistance selection...
October 16, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/29035463/effect-of-balanced-crystalloid-gelatin-and-hydroxyethyl-starch-on-coagulation-detected-by-rotational-thromboelastometry-in-vitro
#10
Silvie Sevcikova, Tomas Vymazal, Miroslav Durila
BACKGROUND: Fluid resuscitation with crystalloid and colloid solutions is a common treatment in perioperative medicine. However, a variety of unbalanced or balanced solutions are used in clinical practice and there is still vivid debate going on regarding selection of optimal fluid with minimal negative effect on coagulation to minimize bleeding and blood transfusion requirements. The aim of the study was to investigate adverse effects of balanced crystalloids and colloids on coagulation measured by thromboelastometry in vitro...
October 1, 2017: Clinical Laboratory
https://www.readbyqxmd.com/read/29035319/nutritional-therapy-in-liver-transplantation
#11
REVIEW
Ahmed Hammad, Toshimi Kaido, Vusal Aliyev, Claudia Mandato, Shinji Uemoto
Protein-energy malnourishment is commonly encountered in patients with end-stage liver disease who undergo liver transplantation. Malnutrition may further increase morbidity, mortality and costs in the post-transplantation setting. The importance of carefully assessing the nutritional status during the work-up of patients who are candidates for liver replacement is widely recognized. The metabolic abnormalities induced by liver failure render the conventional assessment of nutritional status to be challenging...
October 16, 2017: Nutrients
https://www.readbyqxmd.com/read/29032800/haemodynamic-effects-of-incomplete-stent-apposition-in-curved-coronary-arteries
#12
Winson X Chen, Eric K W Poon, Vikas Thondapu, Nicholas Hutchins, Peter Barlis, Andrew Ooi
Incomplete stent apposition (ISA, also known as malapposition) is a complication that affects day-to-day coronary stenting procedures. ISA is more prominent in complex arterial geometries, such as curvature, asa result of the limited conformability of coronary stents. These malapposed struts disturb the otherwise near-wall laminar blood flow and form a micro-recirculation environment. The micro-recirculation environment is often associated with low wall shear stress (WSS) and upsets the delicate balance of vascular biology, providing possible nidus for thrombosis and restenosis...
October 3, 2017: Journal of Biomechanics
https://www.readbyqxmd.com/read/29031578/short-term-exposure-to-bisphenol-a-affects-water-and-salt-intakes-differently-in-male-and-ovariectomised-female-rats
#13
Paula Nuñez, Juan Arguelles, Carmen Perillan
Thirst and sodium appetite are motivational states that lead to the search for and ingestion of water and sodium, thus contributing to maintenance of hydromineral balance. Oestrogens affect fluid intake and sodium preference. Bisphenol A (BPA) is an environmental endocrine-disrupting substance with oestrogenic activity. Whether there are sex differences in the ingestive effects of BPA is unknown. Therefore, the aim of the present work was to determine the effect of short-term treatment of low doses of BPA on thirst and sodium appetite in adult male and ovariectomised Wistar rats...
October 12, 2017: Appetite
https://www.readbyqxmd.com/read/29031361/treatment-of-disorders-of-sodium-balance-in-chronic-kidney-disease
#14
REVIEW
David H Ellison
Extracellular fluid volume expansion is nearly universal in patients with CKD. Such volume expansion has features similar to the syndrome of heart failure with preserved ejection fraction, which not only leads to symptoms but can also lead to further organ damage. Unique treatment challenges are present in this patient population, including low glomerular filtration, which limits sodium chloride filtration, intrinsic tubule predisposition to sodium chloride retention, and proteinuria. In addition, pharmacokinetic considerations alter the disposition of diuretics in patients with CKD and nephrotic syndrome...
September 2017: Advances in Chronic Kidney Disease
https://www.readbyqxmd.com/read/29028771/mechanisms-of-thrombocytopenia-during-septic-shock-a-multiplex-cluster-analysis-of-endogenous-sepsis-mediators
#15
Alexandre Bedet, Keyvan Razazi, Florence Boissier, Mathieu Surenaud, Sophie Hue, Stéphane Giraudier, Christian Brun-Buisson, Armand Mekontso Dessap
BACKGROUND: Thrombocytopenia is a common feature of sepsis and may involve various mechanisms often related to the inflammatory response. This study aimed at evaluating factors associated with thrombocytopenia during human septic shock. In particular, we used a multiplex analysis to assess the role of endogenous sepsis mediators. METHODS: Prospective, observational study. Thrombocytopenia was defined as an absolute platelet count <100 G/L or a 50% relative decrease in platelet count during the first week of septic shock...
October 12, 2017: Shock
https://www.readbyqxmd.com/read/29027657/practical-issues-of-nutrition-during-continuous-renal-replacement-therapy
#16
Dariusz Onichimowski, Radosław Goraj, Rakesh Jalali, Jolanta Grabala, Ewa Mayzner-Zawadzka, Mirosław Czuczwar
Continuous renal replacement therapy (CRRT) in critically ill patients has significant impact on one's ability to provide efficient nutritional therapy. CRRT may help in the prevention of intestinal oedema and the maintenance of the proper function of the gastrointestinal tract by enabling strict control of the fluid balance. It facilitates early introduction of nutrition via the enteral route, as well as allowing for the composition of high-volume feeding mixtures. It is necessary to take into consideration that during CRRT, together with blood purification of toxic substances, nutritive elements are also eliminated to some extent (micro- and macronutrients)...
October 13, 2017: Anaesthesiology Intensive Therapy
https://www.readbyqxmd.com/read/29023316/septic-shock-resuscitation-in-the-first-hour
#17
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...
October 11, 2017: Current Opinion in Critical Care
https://www.readbyqxmd.com/read/29021925/acetazolamide-treatment-of-psychogenic-polydipsia
#18
Syed E Ahmed, Afaque H Khan
We are reporting a case of psychogenic polydipsia from a State of Ohio psychiatric hospital. The patient has a known five-year history of psychogenic polydipsia with recurrent hyponatremia and has been diagnosed with schizoaffective disorder bipolar type 1, according to the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-5) criteria, for the past two decades. There was a marked improvement with the use of acetazolamide, resulting in a decreased compulsion to drink fluid and improvement of his hyponatremia...
August 9, 2017: Curēus
https://www.readbyqxmd.com/read/29017156/the-missing-link-in-the-pathophysiology-of-vascular-cognitive-impairment-design-of-the-heart-brain-study
#19
Astrid M Hooghiemstra, Anne Suzanne Bertens, Anna E Leeuwis, Esther E Bron, Michiel L Bots, Hans-Peter Brunner-La Rocca, Anton J M de Craen, Rob J van der Geest, Jacoba P Greving, L Jaap Kappelle, Wiro J Niessen, Robert J van Oostenbrugge, Matthias J P van Osch, Albert de Roos, Albert C van Rossum, Geert Jan Biessels, Mark A van Buchem, Mat J A P Daemen, Wiesje M van der Flier
BACKGROUND: Hemodynamic balance in the heart-brain axis is increasingly recognized as a crucial factor in maintaining functional and structural integrity of the brain and thereby cognitive functioning. Patients with heart failure (HF), carotid occlusive disease (COD), and vascular cognitive impairment (VCI) present themselves with complaints attributed to specific parts of the heart-brain axis, but hemodynamic changes often go beyond the part of the axis for which they primarily seek medical advice...
October 10, 2017: Cerebrovascular Diseases Extra
https://www.readbyqxmd.com/read/28989985/cardiac-lymphatic-vessels-transport-and-healing-of-the-infarcted-heart
#20
Li-Hao Huang, Kory J Lavine, Gwendalyn J Randolph
The lymphatic vasculature plays a key role throughout the body in regulating tissue fluid homeostasis, lipid transport, and immune surveillance. Whereas it has been appreciated that the heart relies on lymphatic vessels to maintain fluid balance and that such balance must be tightly maintained to allow for normal cardiac output, it has only recently come to light that the lymphatic vasculature might serve as a therapeutic target to promote optimal healing following myocardial ischemia and infarction. We review the subject of cardiac lymphatic vessels herein and highlight studies that imply targeting of lymphatic vessel development or transport may serve as a promising avenue for future clinical application in the context of ischemic injury...
August 2017: JACC. Basic to Translational Science
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