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https://www.readbyqxmd.com/read/29155496/insulin-resistance-in-chronic-kidney-disease
#1
REVIEW
Hong Xu, Juan J Carrero
This review provides an overview of insulin resistance (IR) in patients with chronic kidney disease (CKD). IR is a pathological state in which target tissues fail to respond normally to insulin. IR is understood as a consequence of CKD and its prevalence rises particularly in advanced CKD stages. Mechanisms leading to IR are complex and multifactorial, involving post-receptor signaling defects, unhealthy lifestyles, metabolic acidosis, inflammation, oxidative stress, vitamin D deficiency, anemia, and uremic toxicity, as shown by human and experimental studies over the last 30 years...
December 2017: Nephrology
https://www.readbyqxmd.com/read/29153519/invited-review-practical-feeding-management-recommendations-to-mitigate-the-risk-of-subacute-ruminal-acidosis-in-dairy-cattle
#2
E Humer, R M Petri, J R Aschenbach, B J Bradford, G B Penner, M Tafaj, K-H Südekum, Q Zebeli
Rumen health is of vital importance in ensuring healthy and efficient dairy cattle production. Current feeding programs for cattle recommend concentrate-rich diets to meet the high nutritional needs of cows during lactation and enhance cost-efficiency. These diets, however, can impair rumen health. The term "subacute ruminal acidosis" (SARA) is often used as a synonym for poor rumen health. In this review, we first describe the physiological demands of cattle for dietary physically effective fiber. We also provide background information on the importance of enhancing salivary secretions and short-chain fatty acid absorption across the stratified squamous epithelium of the rumen; thus, preventing the disruption of the ruminal acid-base balance, a process that paves the way for acidification of the rumen...
November 15, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/29153518/subacute-ruminal-acidosis-affects-fermentation-and-endotoxin-concentration-in-the-rumen-and-relative-expression-of-the-cd14-tlr4-md2-genes-involved-in-lipopolysaccharide-systemic-immune-response-in-dairy-cows
#3
B Stefanska, W Człapa, E Pruszynska-Oszmałek, D Szczepankiewicz, V Fievez, J Komisarek, K Stajek, W Nowak
The first objective of this study was to investigate the effects of subacute ruminal acidosis (SARA) on fermentation, ruminal free lipopolysaccharides (LPS), and expression of the cluster of differentiation 14 (CD14), toll-like receptor 4 (TLR4), and myeloid differentiation protein 2 (MD2) complex in white blood cells involved in the systemic immune response in dairy cows. The second objective was a study of whether increased expression of the LPS receptor complex led to increases in the concentrations of plasma high-density lipoprotein (HDL) and serum Ca...
November 15, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/29152544/determinants-and-outcome-of-metabolic-acidosis-in-diarrheal-children-under-5-years-of-age-in-an-urban-critical-care-ward-in-bangladesh
#4
Sharifuzzaman, Monira Sarmin, Tahmeed Ahmed, Tahmina Alam, Shoeb Bin Islam, Md Munirul Islam, Mohammod Jobayer Chisti
We evaluated the independent determinants and outcome of metabolic acidosis in diarrheal children. Children under 5 years of age admitted with diarrhea and severe respiratory distress in the critical care ward at Dhaka Hospital of icddr,b (International Centre for Diarrhoeal Disease Research, Bangladesh) from April 2010 to April 2014 who had their reports of arterial blood gas analyses were enrolled in the study. We compared clinical and laboratory characteristics between the study children with (cases = 74) and without metabolic acidosis (controls = 65)...
2017: Global Pediatric Health
https://www.readbyqxmd.com/read/29151541/gastro-intestinal-involvement-in-m-3243a-g-associated-mitochondrial-myopathy-encephalopathy-lactic-acidosis-and-stroke-like-episodes
#5
Junichiro Suzuki, Mai Iwata, Hideyuki Moriyoshi, Suguru Nishida, Takeshi Yasuda, Yasuhiro Ito
No abstract text is available yet for this article.
November 20, 2017: Internal Medicine
https://www.readbyqxmd.com/read/29150416/-bicarbonate-from-physiology-to-treatment-for-all-clinicians
#6
Julie Beaume, Antoine Braconnier, Thibault Dolley-Hitze, Jean-Philippe Bertocchio
Acid-base regulation is essential to maintain homeostasis in humans. Carbonic acid/bicarbonate (H2CO3/HCO3(-)) couple is the most predominant extracellular buffer to keep plasma pH within a physiological range. The ability to (re)generate such a buffer is a key milestone that necessitates to understand a precise physiology of both renal tubule and digestive tract. Here, we first reviewed renal and digestive cycles of bicarbonate in physiology. We also reviewed pathological findings where acid-base disequilibrium is involved and nutritional and/or alkali therapy could be necessary...
November 14, 2017: Néphrologie & Thérapeutique
https://www.readbyqxmd.com/read/29149667/tumor-acidosis-and-hypoxia-differently-modulate-the-inflammatory-program-measurements-in-vitro-and-in-vivo
#7
Anne Riemann, Sarah Reime, Oliver Thews
Inflammatory mediators produced by the tumor cells are of importance for immune response but also for malignant progression. The aim of the study was to analyze the expression of monocyte chemoattractant protein-1, interleukin-6 (IL-6), tumor necrosis factor-α, inducible isoform of nitric oxide synthase (iNOS), cyclooxygenase-2, and osteopontin in vitro in two different tumor cell lines under hypoxia (pO2≈1.5 mmHg) and/or acidosis (pH=6.6) for up to 24 hours since hypoxia and acidosis are common characteristics of solid tumors...
November 14, 2017: Neoplasia: An International Journal for Oncology Research
https://www.readbyqxmd.com/read/29149019/incidence-and-consequences-of-near-drowning-related-pneumonia-a-descriptive-series-from-martinique-french-west-indies
#8
Laura Cerland, Bruno Mégarbane, Hatem Kallel, Yanick Brouste, Hossein Mehdaoui, Dabor Resiere
Drowning represents one major cause of accidental death. Near-drowning patients are exposed to aspiration that may result in pneumonia with life-threatening consequences. We designed this descriptive study to investigate the frequency, nature, and consequences of post-drowning pneumonia. One hundred and forty-four near-drowning patients (33 children and 111 adults) admitted during four years to the University Hospital of Martinique, French Indies, were included. Patients presented pre-hospital cardiac arrest (41%) and exhibited acute respiratory failure (54%), cardiovascular failure (27%), and lactic acidosis (75%) on admission...
November 17, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/29148290/single-centre-experience-with-the-impella-cp-5-0-and-rp-in-109-consecutive-patients-with-profound-cardiogenic-shock
#9
Peter Blom Jensen, Sigrun Høegholm Kann, Karsten Tange Veien, Ole Kristian Møller-Helgestad, Jordi Sanchez Dahl, Charlotte Svejstrup Rud, Marianne Kjær Jensen, Lisette Okkels Jensen, Henrik Schmidt, Jacob Eifer Møller
RATIONALE: Short-term mechanical circulatory support is increasingly used in the management of cardiogenic shock, but data from controlled studies are sparse. Thus, real-life data on complication rates and predictors of adverse outcome are important. OBJECTIVE: The objective of this study was to analyse the experience with Impella devices in the management of profound cardiogenic shock. METHODS AND RESULTS: A retrospective study of 109 consecutive patients with severe shock after myocardial infarction, acute heart failure, or cardiac surgery...
November 1, 2017: European Heart Journal. Acute Cardiovascular Care
https://www.readbyqxmd.com/read/29144241/shifting-risks-and-conflicting-outcomes-ecmo-for-neonates-with-congenital-diaphragmatic-hernia-in-the-modern-era
#10
Joseph W Turek, Joseph R Nellis, Brenton G Sherwood, Meera Kotagal, Andrew L Mesher, Ravi R Thiagarajan, Sonali S Patel, Jeffrey R Avansino, Peter T Rycus, D Michael McMullan, Thomas V Brogan
OBJECTIVES: To update previously described trends for neonates with congenital diaphragmatic hernia (CDH) receiving ECMO with changes in recommendations for care, and to determine how recent advancements in respiratory care have affected this patient population. STUDY DESIGN: This study is a retrospective review of more than 2500 neonates with CDH who received ECMO listed in the Extracorporeal Life Support Organization (ELSO) registry. Cochran-Armitage and multivariate regression analyses were used to analyze changes in the patient population over time and in mortality-related risk factors...
November 2017: Journal of Pediatrics
https://www.readbyqxmd.com/read/29144182/plasma-lyte-148-vs-hartmann-s-solution-for-cardiopulmonary-bypass-pump-prime-a-prospective-double-blind-randomized-trial
#11
Laurence Weinberg, Elizabeth Chiam, James Hooper, Frank Liskaser, Angela Kim Hawkins, Denise Massie, Andrew Ellis, Chong O Tan, David Story, Rinaldo Bellomo
BACKGROUND: The mechanisms of acid-base changes during cardiopulmonary bypass (CPB) remain unclear. We tested the hypothesis that, when used as CPB pump prime solutions, Plasma-Lyte 148 (PL) and Hartmann's solution (HS) have differential mechanisms of action in their contribution to acid-base changes. METHODS: We performed a prospective, double-blind, randomized trial in adult patients undergoing elective cardiac surgery with CPB. Participants received a CPB prime solution of 2000 mL, with either PL or HS...
November 1, 2017: Perfusion
https://www.readbyqxmd.com/read/29141196/asic2a-overexpression-enhances-the-protective-effect-of-pctx1-and-apetx2-against-acidosis-induced-articular-chondrocyte-apoptosis-and-cytotoxicity
#12
Ren-Peng Zhou, Wen-Lin Ni, Bei-Bei Dai, Xiao-Shan Wu, Zhi-Sen Wang, Ya-Ya Xie, Zhi-Qiang Wang, Wei-Jie Yang, Jin-Fang Ge, Wei Hu, Fei-Hu Chen
Acid hydrarthrosis is another important pathological character in rheumatoid arthritis (RA), and acid-sensing ion channel 1a (ASIC1a) plays a destructive role in acidosis-induced articular chondrocyte cytotoxicity. Recently, ASIC2a has been reported to possess neuroprotective effect on acidosis-induced injury of neuronal cells. However, whether ASIC2a has an enhanced effect on the protective effect of blocking ASIC1a and ASIC3 against acid-induced chondrocyte apoptosis is still unclear. The aim of present study was to investigate the chondroprotective effect of ASIC2a with PcTx1 (ASIC1a specific blocker) and APETx2 (ASIC3 specific blocker) on acidosis-induced chondrocyte apoptosis...
November 13, 2017: Gene
https://www.readbyqxmd.com/read/29140948/hypertonic-saline-resuscitation-following-emergent-laparotomy-and-temporary-abdominal-closure
#13
Tyler J Loftus, Philip A Efron, Trina M Bala, Martin D Rosenthal, Chasen A Croft, R Stephen Smith, Frederick A Moore, Alicia M Mohr, Scott C Brakenridge
BACKGROUND: Our objective was to establish the safety of 3% hypertonic saline (HTS) resuscitation for trauma and acute care surgery patients undergoing emergent laparotomy and temporary abdominal closure (TAC) with the hypothesis that HTS administration would be associated with hyperosmolar hypercholoremic acidosis, lower resuscitation volumes, and higher fascial closure rates, without adversely affecting renal function. METHODS: We performed a retrospective cohort analysis of 189 trauma and acute care surgery patients who underwent emergent laparotomy and TAC, comparing patients with normal baseline renal function who received 3% HTS at 30 mL/h (n=36) to patients with standard resuscitation (n=153) by baseline characteristics, resuscitation parameters, and outcomes including primary fascial closure and KDIGO stages of acute kidney injury...
November 14, 2017: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/29138463/talen-mediated-shift-of-mitochondrial-dna-heteroplasmy-in-melas-ipscs-with-m-13513g-a-mutation
#14
Naoki Yahata, Yuji Matsumoto, Minoru Omi, Naoki Yamamoto, Ryuji Hata
Induced pluripotent stem cells (iPSCs) are suitable for studying mitochondrial diseases caused by mitochondrial DNA (mtDNA) mutations. Here, we generated iPSCs from a patient with mitochondrial myopathy, encephalopathy, lactic acidosis, and stroke-like episodes (MELAS) with the m.13513G>A mutation. The patient's dermal fibroblasts were reprogrammed, and we established two iPSC clones with and without mutant mtDNA. Furthermore, we tried to decrease mutant mtDNA level in iPSCs using transcription activator-like effector nucleases (TALENs)...
November 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29138116/in-silico-identification-of-genes-involved-in-chronic-metabolic-acidosis
#15
Ishfaq A Sheikh, Adeel Malik, Sameera F M AlBasri, Mohd A Beg
AIMS: Chronic metabolic acidosis (CMA) refers to increased plasma acidity due to disturbed acid-base equilibrium in human body. CMA leads to many dysfunctions including disorders of intestinal metabolism and barrier functions. The human body responds to these intestinal dysfunctions by creating a compensatory mechanism at genomic level in intestinal epithelial cells. This study was to identify the molecular pathways involved in metabolic dysfunction and compensatory adaptations in intestinal epithelium during CMA...
November 11, 2017: Life Sciences
https://www.readbyqxmd.com/read/29134448/hyperammonemia-associated-with-distal-renal-tubular-acidosis-or-urinary-tract-infection-a-systematic-review
#16
Caterina M Clericetti, Gregorio P Milani, Sebastiano A G Lava, Mario G Bianchetti, Giacomo D Simonetti, Olivier Giannini
BACKGROUND: Hyperammonemia usually results from an inborn error of metabolism or from an advanced liver disease. Individual case reports suggest that both distal renal tubular acidosis and urinary tract infection may also result in hyperammonemia. METHODS: A systematic review of the literature on hyperammonemia secondary to distal renal tubular acidosis and urinary tract infection was conducted. RESULTS: We identified 39 reports on distal renal tubular acidosis or urinary tract infections in association with hyperammonemia published between 1980 and 2017...
November 13, 2017: Pediatric Nephrology: Journal of the International Pediatric Nephrology Association
https://www.readbyqxmd.com/read/29132978/intensive-care-in-severe-malaria-report-from-the-task-force-on-tropical-diseases-by-the-world-federation-of-societies-of-intensive-and-critical-care-medicine
#17
REVIEW
Dilip R Karnad, Mohd Basri Mat Nor, Guy A Richards, Tim Baker, Pravin Amin
Severe malaria is common in tropical countries in Africa, Asia, Oceania and South and Central America. It may also occur in travelers returning from endemic areas. Plasmodium falciparum accounts for most cases, although P vivax is increasingly found to cause severe malaria in Asia. Cerebral malaria is common in children in Africa, manifests as coma and seizures, and has a high morbidity and mortality. In other regions, adults may also develop cerebral malaria but neurological sequelae in survivors are rare...
November 8, 2017: Journal of Critical Care
https://www.readbyqxmd.com/read/29132215/in-vivo-molecular-epr-based-spectroscopy-and-imaging-of-tumor-microenvironment-and-redox-using-functional-paramagnetic-probes
#18
Valery V Khramtsov
<i><b>Significance:</b></i> A key role of the tumor microenvironment (TME) in cancer progression, treatment resistance and as a target for therapeutic intervention is increasingly appreciated. Among physiological components of the TME are tissue hypoxia, acidosis, high reducing capacity, elevated concentrations of intracellular glutathione (GSH) and interstitial inorganic phosphate (Pi). Noninvasive <i>in vivo</i> assessment of these parameters provide unique insights into biological processes in TME, and may serve as a tool for pre-clinical screening of anticancer drugs and optimizing TME-targeted therapeutic strategies...
November 13, 2017: Antioxidants & Redox Signaling
https://www.readbyqxmd.com/read/29131112/spurious-hyperchloremia-in-the-presence-of-elevated-plasma-salicylate-a-cohort-study
#19
Kianoush B Kashani, Jon H Steuernagle Iv, Qi Qian
BACKGROUND: Acute metabolic acidosis is rarely associated with a reduced or negative anion gap (AG), but several case reports have described such an abnormality occurring in the setting of acute salicylate intoxication. The underlying cause of this phenomenon is unclear. METHODS: In this retrospective cohort study, we reviewed our institutional database to identify all patients admitted for salicylate intoxication at Mayo Clinic (Rochester, MN, USA) from January 2010 through December 2012...
November 9, 2017: Nephron
https://www.readbyqxmd.com/read/29128213/the-effects-of-feeding-a-partial-mixed-ration-plus-a-top-dress-before-feeding-on-milk-production-and-the-daily-rhythm-of-feed-intake-and-plasma-hormones-and-metabolites-in-dairy-cows
#20
M Niu, K J Harvatine
Total mixed rations (TMR) are commonly fed to dairy cows with a goal of reducing ruminal acidosis, but the daily pattern of feed intake has major implication for rumen fermentation and postabsorptive physiology. Generally there is low feed intake during the overnight period and high intake after feeding and during the afternoon. The objective of this study was to determine if feeding a partial mixed ration (PMR) plus a high starch top-dress before feeding of the PMR would improve production and modify key daily rhythms...
November 8, 2017: Journal of Dairy Science
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