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https://www.readbyqxmd.com/read/29934921/magnetic-resonance-imaging-of-arterial-stroke-mimics-a-pictorial-review
#1
REVIEW
Gilles Adam, Marine Ferrier, Sofia Patsoura, Raluca Gramada, Zuzana Meluchova, Vanessa Cazzola, Jean Darcourt, Christophe Cognard, Alain Viguier, Fabrice Bonneville
Acute ischaemic stroke represents the most common cause of new sudden neurological deficit, but other diseases mimicking stroke happen in about one-third of the cases. Magnetic resonance imaging (MRI) is the best technique to identify those 'stroke mimics'. In this article, we propose a diagnostic approach of those stroke mimics on MRI according to an algorithm based on diffusion-weighted imaging (DWI), which can be abnormal or normal, followed by the results of other common additional MRI sequences, such as T2 with gradient recalled echo weighted imaging (T2-GRE) and fluid-attenuated inversion recovery (FLAIR)...
June 22, 2018: Insights Into Imaging
https://www.readbyqxmd.com/read/29933869/a-case-risk-study-of-lactic-acidosis-risk-by-metformin-use-in-type-2-diabetes-mellitus-tuberculosis-coinfection-patients
#2
Bernadette Dian Novita, Agung Pranoto, Wuryani, Endang Isbandiati Soediono, Ni Made Mertaniasih
Metformin (MET) has possibilities to be utilized as an adjunct of tuberculosis (TB) therapy for controlling the growth of Mycobacterium tuberculosis (M. tuberculosis). MET enhances the production of mitochondrial reactive oxygen species and facilitates phagosome-lysosome fusion; those mechanism are important in M. tuberculosis elimination. Moreover, MET-associated lactic acidosis (MALA) needs to be considered and the incidence of MALA in patients with type 2 DM-TB coinfection remains unknown. This result contributes much to our understanding about the clinical effect of MET use in type 2 DM-TB coinfection...
July 2018: Indian Journal of Tuberculosis
https://www.readbyqxmd.com/read/29928977/the-melas-mutation-m-3243a-g-promotes-reactivation-of-fetal-cardiac-genes-and-an-epithelial-mesenchymal-transition-like-program-via-dysregulation-of-mirnas
#3
Salvador Meseguer, Joaquin Panadero, Carmen Navarro-González, Magda Villarroya, Rachid Boutoual, Giacomo Pietro Comi, M-Eugenia Armengod
The pathomechanisms underlying oxidative phosphorylation (OXPHOS) diseases are not well-understood, but they involve maladaptive changes in mitochondria-nucleus communication. Many studies on the mitochondria-nucleus cross-talk triggered by mitochondrial dysfunction have focused on the role played by regulatory proteins, while the participation of miRNAs remains poorly explored. MELAS (mitochondrial encephalomyopathy, lactic acidosis, and stroke-like episodes) is mostly caused by mutation m.3243A>G in mitochondrial tRNALeu(UUR) gene...
June 18, 2018: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/29928884/lactic-acid-induces-lactate-transport-and-glycolysis-oxphos-interconversion-in-glioblastoma
#4
Ke Duan, Zhong-Jian Liu, Su-Qiong Hu, Hong-Yu Huo, Zhi-Ru Xu, Jian-Fei Ruan, Yang Sun, Li-Ping Dai, Chang-Bao Yan, Wei Xiong, Qing-Hua Cui, Hai-Jing Yu, Min Yu, Yang Qin
The Warburg effect is a dominant phenotype of most tumor cells. Recent reports have shown that the Warburg effect can be reprogrammed by the tumor microenvironment. Lactic acidosis and glucose deprivation are the common adverse microenvironments in solid tumor. The metabolic reprogramming induced by lactic acid and glucose deprivation remains to be elucidated in glioblastoma. Here, we show that, under glucose deprivation, lactic acid can preserve high ATP levels and resist cell death in U251 cells. At the same time, we find that MCT1 and MCT4 are significantly highly expressed...
June 18, 2018: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29923671/the-hypothesis-of-circulus-hypoxicus-and-its-clinical-relevance-in-patients-with-methanol-poisoning-an-observational-study-of-35-patients
#5
Elise Drangsholt, Marie Vangstad, Sergey Zakharov, Knut Erik Hovda, Dag Jacobsen
Methanol mass poisoning is a global problem with high fatality rates and often severe sequelae in survivors. Patients typically present late to the hospital with severe metabolic acidosis followed by a rapid deterioration in their clinical status. The hypothesis "Circulus hypoxicus" describes the metabolic acidosis following methanol poisoning as a self-enhancing hypoxic circle responsible for methanol toxicity. We wanted to test the validity of this hypothesis by an observational study based on 35 patients from the methanol outbreaks in Norway (2004) and the Czech Republic (2012)...
June 20, 2018: Basic & Clinical Pharmacology & Toxicology
https://www.readbyqxmd.com/read/29923093/a-homozygous-splice-site-mutation-in-slc25a42-encoding-the-mitochondrial-transporter-of-coenzyme-a-causes-metabolic-crises-and-epileptic-encephalopathy
#6
Arcangela Iuso, Bader Alhaddad, Corina Weigel, Urania Kotzaeridou, Elisa Mastantuono, Thomas Schwarzmayr, Elisabeth Graf, Caterina Terrile, Holger Prokisch, Tim M Strom, Georg F Hoffmann, Thomas Meitinger, Tobias B Haack
SLC25A42 is an inner mitochondrial membrane protein which has been shown to transport coenzyme A through a lipid bilayer in vitro. A homozygous missense variant in this gene has been recently reported in 13 subjects of Arab descent presenting with mitochondriopathy with variable clinical manifestations. By exome sequencing, we identified two additional individuals carrying rare variants in this gene. One subject was found to carry the previously reported missense variant in homozygous state, while the second subject carried a homozygous canonical splice site variant resulting in a splice defect...
June 20, 2018: JIMD Reports
https://www.readbyqxmd.com/read/29921486/comparison-of-magnetic-resonance-spectroscopy-mrs-with-arterial-spin-labeling-asl-in-the-differentiation-between-mitochondrial-encephalomyopathy-lactic-acidosis-plus-stroke-like-episodes-melas-and-acute-ischemic-stroke-ais
#7
Xiaodi Li, Yuzhou Wang, Zhanhang Wang, Jianjun Lu, Yan Xu, Jinlong Ye, Zuying Kuang, Bo Li, Mengqiu Pan, Wenming Chen, Shuisheng Lu, Ziyang Zhou, Lina Cheng, Honghao Wang
To compare the utility and limitation of magnetic resonance spectroscopy (MRS) and arterial spin labeling (ASL) in the differentiation between mitochondrial encephalomyopathy, lactic acidosis, plus stroke-like episodes (MELAS) and acute ischemic stroke (AIS), a retrospective review of 17 MELAS and 26 AIS patients were performed. In all patients both MRS and ASL scans were performed within 1 week after admission. Demographic, clinical, laboratory and MR imaging data were reviewed and compared between the two groups...
June 16, 2018: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/29915215/brain-fogginess-gas-and-bloating-a-link-between-sibo-probiotics-and-metabolic-acidosis
#8
Satish S C Rao, Abdul Rehman, Siegfried Yu, Nicole Martinez de Andino
BACKGROUND: D-lactic acidosis is characterized by brain fogginess (BF) and elevated D-lactate and occurs in short bowel syndrome. Whether it occurs in patients with an intact gut and unexplained gas and bloating is unknown. We aimed to determine if BF, gas and bloating is associated with D-lactic acidosis and small intestinal bacterial overgrowth (SIBO). METHODS: Patients with gas, bloating, BF, intact gut, and negative endoscopic and radiological tests, and those without BF were evaluated...
June 19, 2018: Clinical and Translational Gastroenterology
https://www.readbyqxmd.com/read/29914901/beware-of-beta-a-case-of-salbutamol-induced-lactic-acidosis-in-severe-asthma
#9
Zain Sharif, Mazen Al-Alawi
A 22-year-old woman presented with symptoms and signs consistent with acute severe asthma. After significant doses of beta-agonist, she developed a significant lactic acidosis. Significant issues arose in this patient's history with regards to purchase of medications, compliance and follow-up with respiratory service. Beta-adrenergic receptors when stimulated have been hypothesised to increase lipolysis, producing free fatty acids, which inhibit the conversion of pyruvate to coenzyme A within the Krebs cycle...
June 17, 2018: BMJ Case Reports
https://www.readbyqxmd.com/read/29912656/neurological-impairments-in-hypoxic-neonates-and-lactate-levels
#10
Miljana Z Jovandaric, Svetlana J Milenkovic
INTRODUCTION: Metabolic acidosis with increasing lactate concentration develops due to the lack of oxygen in the tissues. OBJECTIVES: The effect of lactic acidosis on neurological development in the first year of life. MATERIALS AND METHODS: Our study included 50 newborns with perinatal hypoxia requiring oxygen therapy and 50 healthy newborns. pH, pCO2, pO2, base excess (BE) and lactates from arterialized capillary blood were determined in both groups of newborns, in the first and second hours after birth, and neurological development in the first year of life was estimated...
June 18, 2018: Neurological Research
https://www.readbyqxmd.com/read/29911459/a-case-of-linezolid-induced-toxicity
#11
Philip E Tobias, Christy A Varughese, Amy P Hanson, Payal K Gurnani
Adverse effects of linezolid are typically limited to diarrhea, nausea, and headache when shorter durations are used; however, as extended durations of linezolid therapy are increasingly more common, additional monitoring parameters should be considered in these patients. We describe a unique case of hypoglycemia, lactic acidosis, and pancreatitis related to an extended duration of linezolid therapy. A 52-year-old woman presented with altered mental status, abdominal pain, and hypotension following six weeks of linezolid and ertapenem therapy...
January 1, 2018: Journal of Pharmacy Practice
https://www.readbyqxmd.com/read/29901551/intestinal-microbial-and-metabolic-alterations-following-successful-fecal-microbiota-transplant-for-d-lactic-acidosis
#12
Emily C Bulik-Sullivan, Sayanty Roy, Ryan J Elliott, Zain Kassam, Steven N Lichtman, Ian M Carroll, Ajay S Gulati
Fecal microbiota transplantation (FMT) involves the transfer of stool from a healthy individual into the intestinal tract of a diseased recipient. Although used primarily for recurrent Clostridium difficile infection, FMT is increasingly being attempted as an experimental therapy for other illnesses, including metabolic disorders. D-lactic acidosis (D-LA) is a metabolic disorder that may occur in individuals with short bowel syndrome when lactate-producing bacteria in the colon overproduce D-lactate. This results in elevated systemic levels of D-lactate, metabolic acidosis, and encephalopathy...
June 12, 2018: Journal of Pediatric Gastroenterology and Nutrition
https://www.readbyqxmd.com/read/29887685/improvement-of-2-vessel-occlusion-cerebral-ischaemia-reperfusion-induced-corticostriatal-electrolyte-and-redox-imbalance-lactic-acidosis-and-modified-acetylcholinesterase-activity-by-kolaviron-correlates-with-reduction-in-neurobehavioural-deficits
#13
Afolabi Clement Akinmoladun, Ibrahim Olabayode Saliu, Boyede Dele Olowookere, Olubukola Benedicta Ojo, Mary Tolulope Olaleye, Ebenezer Olatunde Farombi, Afolabi Akintunde Akindahunsi
Background: Disruption of electrolyte, redox and neurochemical homeostasis alongside cellular energy crisis is a hallmark of cerebral ischaemia and reperfusion injury. Purpose: This study investigated the effect of kolaviron (KV) on cortical and striatal cation imbalance, oxidative stress and neurochemical disturbances as well as neurobehavioural deficits in animals subjected to bilateral common carotid artery occlusion (BCCAO)-induced ischaemia/reperfusion injury...
April 2018: Annals of Neurosciences
https://www.readbyqxmd.com/read/29868840/association-of-metformin-use-with-risk-of-lactic-acidosis-across-the-range-of-kidney-function-a-community-based-cohort-study
#14
Benjamin Lazarus, Aozhou Wu, Jung-Im Shin, Yingying Sang, G Caleb Alexander, Alex Secora, Lesley A Inker, Josef Coresh, Alex R Chang, Morgan E Grams
Importance: Approximately 1 million patients in the United States with type 2 diabetes mellitus and mild-to-moderate kidney disease do not receive guideline-directed therapy with metformin. This may reflect uncertainty regarding the risk of acidosis in patients with chronic kidney disease. Objective: To quantify the association between metformin use and hospitalization with acidosis across the range of estimated glomerular filtration rate (eGFR), accounting for change in eGFR stage over time...
June 4, 2018: JAMA Internal Medicine
https://www.readbyqxmd.com/read/29861374/hemodialysis-in-metformin-associated-lactic-acidosis-due-to-acute-overdose-in-a-metformin-na%C3%A3-ve-patient-a-case-report
#15
Daniel J McCabe, Samuel J Stellpflug
Metformin is a common and generally well-tolerated medication in the treatment of diabetes but rarely has been implicated as the cause for metformin-associated lactate acidosis. This is usually caused by decreased elimination from renal dysfunction but is rarely described after an acute ingestion. We present a case of an acute intentional overdose of metformin in a metformin-naïve patient without renal dysfunction. The patient gradually developed altered mental status, tachypnea, hypotension, hyperglycemia, hypoglycemia, hypothermia, and vasoplegic shock unresponsive to vasopressor support...
May 30, 2018: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/29860962/feeding-corn-grain-steeped-in-citric-acid-modulates-rumen-fermentation-and-inflammatory-responses-in-dairy-goats
#16
Y Z Shen, L Y Ding, L M Chen, J H Xu, R Zhao, W Z Yang, H R Wang, M Z Wang
Cereal grains treated with organic acids were proved to increase ruminal resistant starch and can relieve the risk of ruminal acidosis. However, previous study mainly focussed on acid-treated barley, the effects of organic acid-treated corn is still unknown. The objectives of this study were to evaluate whether feeding ground corn steeped in citric acid (CA) would affect ruminal pH and fermentation patterns, milk production and innate immunity responses in dairy goats. Eight ruminally cannulated Saanen dairy goats were used in a crossover designed experiment...
June 4, 2018: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/29849230/significant-lactic-acidosis-from-albuterol
#17
Maxwell Hockstein, Deborah Diercks
Lactic acidosis is a clinical entity that demands rapid assessment and treatment to prevent significant morbidity and mortality. With increased lactate use across many clinical scenarios, lactate values themselves cannot be interpreted apart from their appropriate clinical picture. The significance of Type B lactic acidosis is likely understated in the emergency department (ED). Given the mortality that sepsis confers, a serum lactate is an important screening study. That said, it is with extreme caution that we should interpret and react to the resultant elevated value...
May 2018: Clinical practice and cases in emergency medicine
https://www.readbyqxmd.com/read/29846279/fatal-case-of-metformin-associated-lactic-acidosis-associated-with-temporary-ileostomy-a-case-report
#18
Flavio Tirelli, Alberto Biondi, Roberto Persiani
BACKGROUND: Metformin is considered a first choice for oral treatment of patients with type 2 diabetes in the absence of contraindications. Colorectal cancer is the second most frequent cancer among the general population; low anterior resections and temporary diverting ileostomies are commonly performed in this population. As the incidence of type 2 diabetes increases, the use of metformin in patients with both type 2 diabetes and an ileostomy will most likely increase as well. CASE: We present the case of a patient affected by colorectal cancer who developed a severe metformin-associated lactic acidosis (MALA) after creation of a temporary ileostomy to protect a low colorectal anastomosis...
May 24, 2018: Journal of Wound, Ostomy, and Continence Nursing
https://www.readbyqxmd.com/read/29801682/lactic-acidosis-and-asthma-exacerbation
#19
María J Martínez-Tébar, Alina C Bodan, Eduardo García-Pachón
No abstract text is available yet for this article.
May 22, 2018: Archivos de Bronconeumología
https://www.readbyqxmd.com/read/29769189/metabolic-acidosis-in-short-bowel-syndrome-think-d-lactic-acid-acidosis
#20
Sorin Stanciu, Aminda De Silva
Short bowel syndrome (SBS) is a condition when a person's gastrointestinal function is insufficient to supply the body with essential nutrients and hydration. Patients with SBS suffer from diarrhoea and symptoms of malabsorption such as weight loss, electrolyte disturbances and vitamin deficiencies. Long-term management of this condition can be complicated by the underlying disease, the abnormal bowel function and issues related to treatment like administration of parenteral nutrition and the use of a central venous catheter...
May 16, 2018: BMJ Case Reports
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