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Metabolic acidosis

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https://www.readbyqxmd.com/read/28640781/hydrogen-gas-inhalation-inhibits-progression-to-the-irreversible-stage-of-shock-after-severe-hemorrhage-in-rats
#1
Tadashi Matsuoka, Masaru Suzuki, Motoaki Sano, Kei Hayashida, Tomoyoshi Tamura, Koichiro Homma, Keiichi Fukuda, Junichi Sasaki
BACKGROUND: Mortality of hemorrhagic shock primarily depends on whether or not the patients can endure the loss of circulating volume until radical treatment is applied. We investigated whether hydrogen (H2) gas inhalation would influence the tolerance to hemorrhagic shock and improve survival. METHODS: Hemorrhagic shock was achieved by withdrawing blood until the mean arterial blood pressure reached 30-35 mmHg. After 60 minutes of shock, the rats were resuscitated with a volume of normal saline equal to four times the volume of shed blood...
June 20, 2017: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/28620821/administration-of-exogenous-melatonin-after-the-onset-of-systemic-inflammation-is-hardly-beneficial
#2
Lisa Brencher, Maren Oude Lansink, Katharina Effenberger-Neidnicht
Melatonin improves survival and functional impairment including hemolysis, thrombocytopenia, and hypotension when administered in a prophylactic manner or early after initiation of sepsis or endotoxemia. In the present study, melatonin was given not before first symptoms of systemic inflammation became manifest. Lipopolysaccharide was infused at a rate of 0.5 mg/kg × h to induce systemic inflammation in male Wistar rats. Melatonin (single dose 3 mg/kg × 15 min) was intravenously administered 180 and 270 min after starting of the lipopolysaccharide infusion...
June 15, 2017: Inflammation
https://www.readbyqxmd.com/read/28620491/pseudo-thrombotic-thrombocytopenic-purpura-presenting-as-multi-organ-dysfunction-syndrome-a-rare-complication-of-pernicious-anemia
#3
Saroj Kandel, Nibash Budhathoki, Shanta Pandey, Bikash Bhattarai, Aam Baqui, Ramesh Pandey, Divya Salhan, Danilo Enriquez, Joseph Quist, Frances M Schmidt
OBJECTIVE: We present a rare case of pernicious anemia presented as multi-organ dysfunction syndrome, later found to have pseudo-thrombotic thrombocytopenic purpura. METHODS: An 86-year-old female presented with respiratory distress, altered mental status, acute renal failure and was intubated in emergency room. She was found to have severe anemia, thrombocytopenia, high lactate, high lactate dehydrogenase and low haptoglobin. Peripheral smear revealed multilobulated neutrophils with schistocytes, poikilocytes and anisocytes...
2017: SAGE open medical case reports
https://www.readbyqxmd.com/read/28616838/assessment-of-renal-hemodynamic-toxicity-of-fluid-challenge-with-0-9-nacl-compared-to-balanced-crystalloid-plasmalyte-%C3%A2-in-a-rat-model-with-severe-sepsis
#4
Pierre-Yves Olivier, François Beloncle, Valérie Seegers, Maher Tabka, Mathilde Renou de La Bourdonnaye, Alain Mercat, Paul Cales, Daniel Henrion, Peter Radermacher, Lise Piquilloud, Nicolas Lerolle, Pierre Asfar
BACKGROUND: According to international guidelines, volume expansion with crystalloids is the first-line treatment for hemodynamic management in patients with severe sepsis or septic shock. Compared to balanced crystalloids, 0.9% sodium chloride (0.9% NaCl) induces hyperchloremia and metabolic acidosis and may alter renal hemodynamics and function. We compared the effects of 0.9% NaCl to a less chloride-concentrated fluid, PlasmaLyte(®) (PL) in targeted fluid resuscitation in a randomized, double-blind controlled study in an experimental model of severe sepsis in rats...
December 2017: Annals of Intensive Care
https://www.readbyqxmd.com/read/28612026/postoperative-compensatory-ammonium-excretion-subsequent-to-systemic-acidosis-in-cardiac-patients
#5
Friederike Roehrborn, Daniel-Sebastian Dohle, Indra N Waack, Konstantinos Tsagakis, Heinz Jakob, Johanna K Teloh
BACKGROUND: Postoperative acid-base imbalances, usually acidosis, frequently occur after cardiac surgery. In most cases, the human body, not suffering from any severe preexisting illnesses regarding lung, liver, and kidney, is capable of transient compensation and final correction. The aim of this study was to correlate the appearance of postoperatively occurring acidosis with renal ammonium excretion. MATERIALS AND METHODS: Between 07/2014 and 10/2014, a total of 25 consecutive patients scheduled for elective isolated coronary artery bypass grafting with cardiopulmonary bypass were enrolled in this prospective observational study...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28608260/water-electrolyte-acid-base-and-trace-elements-alterations-in-cirrhotic-patients
#6
REVIEW
Carlos G Musso, Rossina Juarez, Richard J Glassock
Chronic hepatic patients, and particularly those suffering from cirrhosis, are predisposed to different sort of water, electrolyte, acid-base, and trace elements disorders due to their altered liver function, and also to their exposition to infectious, inflammatory, oncologic, and pharmacologic variables whose combination undermines their homeostatic capability. Hyponatremia, hypokalemia, hyperkalemia, hypocalcemia, metabolic acidosis, respiratory, and metabolic alkalosis are the main internal milieu alterations in this group...
June 12, 2017: International Urology and Nephrology
https://www.readbyqxmd.com/read/28604960/-analysis-of-uqcrb-gene-mutation-in-a-child-with-mitochondrial-complex-iii-deficiency
#7
Ting Zhang, Fang Hong, Guling Qian, Fan Tong, Xuelian Zhou, Xiaolei Huang, Rulai Yang, Xinwen Huang
OBJECTIVE: To delineate the clinical, biochemical and genetic mutational characteristics of a child with mitochondrial complex III deficiency. METHODS: Clinical information and results of auxiliary examination of the patient were analyzed. Next-generation sequencing of the mitochondrial genome and related nuclear genes was carried out. Suspected mutation was confirmed in both parents with Sanger sequencing. Heterozygous deletion was mapped with chromosomal microarray analysis and confirmed with real-time PCR...
June 10, 2017: Zhonghua Yi Xue Yi Chuan Xue za Zhi, Zhonghua Yixue Yichuanxue Zazhi, Chinese Journal of Medical Genetics
https://www.readbyqxmd.com/read/28600353/age-or-ischemia-uncouples-the-blood-flow-response-tissue-acidosis-and-the-direct-current-potential-signature-of-spreading-depolarization-in-the-rat-brain
#8
Ákos Menyhárt, Dániel Zölei-Szénási, Tamás Puskás, Péter Makra, Ferenc Bari, Eszter Farkas
Spreading depolarization (SD) events contribute to lesion maturation in the acutely injured human brain. Neurodegeneration related to SD is thought to be caused by the insufficiency of the cerebral blood flow (CBF) response; yet, the mediators of the CBF response, or their deficiency in the aged or ischemic cerebral cortex remain the target of intensive research. Here we postulate that tissue pH effectively modulates the magnitude of hyperemia in response to SD, which coupling is prone to be dysfunctional in the aged or ischemic cerebral cortex...
June 9, 2017: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/28599903/metabolic-acidosis-or-respiratory-alkalosis-evaluation-of-a-low-plasma-bicarbonate-using-the-urine-anion-gap
#9
Daniel Batlle, Jamie Chin-Theodorou, Bryan M Tucker
Hypobicarbonatemia, or a reduced bicarbonate concentration in plasma, is a finding seen in 3 acid-base disorders: metabolic acidosis, chronic respiratory alkalosis and mixed metabolic acidosis and chronic respiratory alkalosis. Hypobicarbonatemia due to chronic respiratory alkalosis is often misdiagnosed as a metabolic acidosis and mistreated with the administration of alkali therapy. Proper diagnosis of the cause of hypobicarbonatemia requires integration of the laboratory values, arterial blood gas, and clinical history...
June 6, 2017: American Journal of Kidney Diseases: the Official Journal of the National Kidney Foundation
https://www.readbyqxmd.com/read/28593901/pseudohypoaldosteronism-types-i-and-ii-little-more-than-a-name-in-common
#10
Dídac Casas-Alba, Jordi Vila Cots, Laura Monfort Carretero, Loreto Martorell Sampol, Maria-Christina Zennaro, Xavier Jeunemaitre, Juan Antonio Camacho Díaz
Pseudohypoaldosteronism (PHA) comprises a diverse group of rare diseases characterized by sodium and potassium imbalances incorrectly attributed to a defect in aldosterone production. Two different forms of PHA have been described, type I (PHAI) and type II (PHAII). PHAI has been subclassified into renal and systemic. Given the rarity and heterogeneity of this group of disorders we report three patients who carry PHA and a brief revision of current literature focused on the comparative analysis of PHAI and PHAII...
May 1, 2017: Journal of Pediatric Endocrinology & Metabolism: JPEM
https://www.readbyqxmd.com/read/28589178/intramyocellular-lipid-excess-in-the-mitochondrial-disorder-melas-mrs-determination-at-7t
#11
Sailaja Golla, Jimin Ren, Craig R Malloy, Juan M Pascual
OBJECTIVE: There is a paucity of objective, quantifiable indicators of mitochondrial disease available for clinical and scientific investigation. METHODS: To this end, we explore intramyocellular lipid (IMCL) accumulation noninvasively by 7T magnetic resonance spectroscopy (MRS) as a reporter of metabolic dysfunction in MELAS (mitochondrial encephalomyopathy, lactic acidosis, and stroke-like episodes). We reasoned that mitochondrial dysfunction may impair muscle fat metabolism, resulting in lipid deposition (as is sometimes observed in biopsies), and that MRS is well suited to quantify these lipids...
June 2017: Neurology. Genetics
https://www.readbyqxmd.com/read/28587067/diet-induced-low-grade-metabolic-acidosis-and-clinical-outcomes-a-review
#12
Renata Alves Carnauba, Ana Beatriz Baptistella, Valéria Paschoal, Gilberti Helena Hübscher
Low-grade metabolic acidosis is a condition characterized by a slight decrease in blood pH, within the range considered normal, and feeding is one of the main factors that may influence the occurrence of such a condition. The excessive consumption of acid precursor foods (sources of phosphorus and proteins), to the detriment of those precursors of bases (sources of potassium, calcium, and magnesium), leads to acid-base balance volubility. If this condition occurs in a prolonged, chronic way, low-grade metabolic acidosis can become significant and predispose to metabolic imbalances such as kidney stone formation, increased bone resorption, reduced bone mineral density, and the loss of muscle mass, as well as the increased risk of chronic diseases such as type 2 diabetes mellitus, hypertension, and non-alcoholic hepatic steatosis...
May 25, 2017: Nutrients
https://www.readbyqxmd.com/read/28586613/hyperlactetemia-and-its-trends-in-critically-ill-children-admitted-in-pediatric-intensive-care-unit-of-a-developing-country
#13
Qalab Abbas, Muhammad Tariq Jamil, Leena Jafri, Anwar Ul Haque, Vivek Khetpal
OBJECTIVE: There is increasing evidence that in setting of critical ailments clinical signs lag biomarkers like Lactate and hyperlactetemia can be the only marker for this disorder. This study was conducted to describe the incidence of hyperlactatemia in critically ill children and its association with outcome. METHODS: Retrospective review of medical records of all children who had their lactic acid (LA) levels measured during their admission in PICU from January 2014 to December 2015 was done...
October 2016: Journal of Ayub Medical College, Abbottabad: JAMC
https://www.readbyqxmd.com/read/28586591/celiac-crisis-a-rare-or-rarely-recognized-disease
#14
Nadia Waheed, Huma Arshad Cheema, Hassan Suleman, Zafar Fayyaz, Iqra Mushtaq, Muhammad, Almas Hashmi
OBJECTIVE: Celiac crisis is a serious life threatening complication of celiac disease characterized by profuse diarrhoea, severe dehydration and metabolic disturbances leading to neuromuscular weakness, cardiac arrhythmias and sudden death. It has been described as rare condition and not well documented in the literature. To improve awareness and facilitate diagnosis of this condition, we studied risk factors, pattern of presentation and management plans of celiac crisis. METHODS: It was a descriptive cross sectional study...
October 2016: Journal of Ayub Medical College, Abbottabad: JAMC
https://www.readbyqxmd.com/read/28579060/human-dihydrolipoamide-dehydrogenase-e3-deficiency-novel-insights-into-the-structural-basis-and-molecular-pathomechanism
#15
REVIEW
Attila Ambrus, Vera Adam-Vizi
This review summarizes our present view on the molecular pathogenesis of human (h) E3-deficiency caused by a variety of genetic alterations with a special emphasis on the moonlighting biochemical phenomena related to the affected (dihydro)lipoamide dehydrogenase (LADH, E3, gene: dld), in particular the generation of reactive oxygen species (ROS). E3-deficiency is a rare autosomal recessive genetic disorder frequently presenting with a neonatal onset and premature death; the highest carrier rate of a single pathogenic dld mutation (1:94-1:110) was found among Ashkenazi Jews...
June 2, 2017: Neurochemistry International
https://www.readbyqxmd.com/read/28571139/invasive-mucormycosis-in-a-case-of-aluminium-phosphide-poisoning
#16
Nitin Gupta, Gagandeep Singh, Karan Aggarwal, Alok Thakar, Immaculata Xess
Mucormycosis is a rapidly progressive disease with high mortality reported mostly in immunocompromised individuals. We report a case of Rhino-orbital mucormycosis (Lichtheimia corymbifera) in an immunocompetent individual with history of consumption of Aluminium Phosphide (ALP) tablets. We postulated the following effects of ALP poisoning that would have increased the chances of mucormycosis in this patient: 1) Metabolic acidosis; 2) Acute Kidney Injury (AKI); and 3) Liberation of free oxygen radicals.
April 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28568353/prevention-of-complications-in-glycogen-storage-disease-type-ia-with-optimization-of-metabolic-control
#17
REVIEW
M Dambska, E B Labrador, C L Kuo, D A Weinstein
Prior to 1971, type Ia glycogen storage disease was marked by life-threatening hypoglycemia, lactic acidosis, severe failure to thrive, and developmental delay. With the introduction of continuous feeds in the 1970s and cornstarch in the 1980s, the prognosis improved, but complications almost universally developed. Changes in the management of type Ia glycogen storage disease have resulted in improved metabolic control, and this manuscript reviews the increasing evidence that complications can be delayed or prevented with optimal metabolic control as previously was seen in diabetes...
June 1, 2017: Pediatric Diabetes
https://www.readbyqxmd.com/read/28567665/severe-hyperkalemia-is-rescued-by-low-potassium-diet-in-renal-%C3%AE-enac-deficient-mice
#18
Emilie Boscardin, Romain Perrier, Chloé Sergi, Marc Maillard, Johannes Loffing, Dominique Loffing-Cueni, Robert Koesters, Bernard Claude Rossier, Edith Hummler
In adulthood, an induced nephron-specific deficiency of αENaC (Scnn1a) resulted in pseudohypoaldosteronism type 1 (PHA-1) with sodium loss, hyperkalemia, and metabolic acidosis that is rescued through high-sodium/low-potassium (HNa(+)/LK(+)) diet. In the present study, we addressed whether renal βENaC expression is required for sodium and potassium balance or can be compensated by remaining (α and γ) ENaC subunits using adult nephron-specific knockout (Scnn1b(Pax8/LC1)) mice. Upon induction, these mice present a severe PHA-1 phenotype with weight loss, hyperkalemia, and dehydration, but unlike the Scnn1a(Pax8/LC1) mice without persistent salt wasting...
May 31, 2017: Pflügers Archiv: European Journal of Physiology
https://www.readbyqxmd.com/read/28565850/metabolic-acidosis-as-a-risk-factor-for-the-development-of-acute-kidney-injury-and-hospital-mortality
#19
Jiachang Hu, Yimei Wang, Xuemei Geng, Rongyi Chen, Xialian Xu, Xiaoyan Zhang, Jing Lin, Jie Teng, Xiaoqiang Ding
Metabolic acidosis has been proved to be a risk factor for the progression of chronic kidney disease, but its relation to acute kidney injury (AKI) has not been investigated. In general, a diagnosis of metabolic acidosis is based on arterial blood gas (ABG) analysis, but the diagnostic role of carbon dioxide combining power (CO2CP) in the venous blood may also be valuable to non-respiratory patients. This retrospective study included all adult non-respiratory patients admitted consecutively to our hospital between October 01, 2014 and September 30, 2015...
May 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28564654/high-dose-cannabidiol-induced-hypotension-after-global-hypoxia-ischemia-in-piglets
#20
Håvard T Garberg, Rønnaug Solberg, Jon Barlinn, Jose Martinez-Orgado, Else-Marit Løberg, Ola Didrik Saugstad
BACKGROUND: Cannabidiol (CBD) is considered a promising neuroprotectant after perinatal hypoxia-ischemia (HI). We have previously studied the effects of CBD 1 mg/kg in the early phase after global HI in piglets. In contrast to prior studies, we found no evidence of neuroprotection and hypothesized that higher doses might be required to demonstrate efficacy in this animal model. OBJECTIVE: To assess the safety and potential neuroprotective effects of high-dose CBD...
June 1, 2017: Neonatology
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