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https://www.readbyqxmd.com/read/28217616/cocaine-induced-vasculitis-with-cutaneous-manifestation-a-recurrent-episode-after-2-years
#1
Thein Swe, Mona Pervil-Ulysse, Aam A Baqui
Cocaine is a popular recreational drug in the United States, and up to 70% of the seized cocaine contains levamisole which is an antihelminthic that can cause cutaneous vasculitis with necrosis and positive antineutrophil cytoplasmic antibodies (ANCAs). Here, we report a unique case of recurrent cocaine-induced vasculitis in a patient who smokes cocaine for more than 20 years. A 38-year-old woman complained of painful erythematous rash in her right arm and right thigh which appeared some hours after smoking cocaine...
July 2016: Journal of Family Medicine and Primary Care
https://www.readbyqxmd.com/read/28209522/the-role-of-alkaline-phosphatase-in-intracellular-lipid-accumulation-in-the-human-hepatocarcinoma-cell-line-hepg2
#2
George M Chirambo, Chantal van Niekerk, Nigel J Crowther
Inhibition of tissue non-specific alkaline phosphatase (TNALP) decreases intracellular lipid accumulation in human preadipocytes and the murine preadipocyte cell line, 3T3-L1. Therefore, the current study was performed to determine if TNALP is required for intracellular lipid deposition in the human hepatocyte cell line, HepG2. Intracellular lipid accumulation, TNALP activity and peroxisome proliferator activated receptor (PPAR) γ gene expression were measured in HepG2 and 3T3-L1 cells in the presence and absence of the TNALP inhibitors levamisole and histidine...
February 13, 2017: Experimental and Molecular Pathology
https://www.readbyqxmd.com/read/28203368/a-nationwide-survey-of-anthelmintic-treatment-failure-on-sheep-farms-in-ireland
#3
Jason D Keegan, Orla M Keane, Barbara Good, Theo De Waal, Marian Denny, James P Hanrahan, William Fitzgerald, Maresa Sheehan
BACKGROUND: Between 2013 and 2015 the Department of Agriculture, Food and the Marine (DAFM) administered a sheep technology adoption programme (STAP), with the aim of increasing profitability on Irish sheep farms by encouraging the adoption of best management practices. One of the options available to STAP participants was to test the efficacy of the anthelmintic treatment (benzimadazole, levamisole or macrocyclic lactone) used in their flocks by means of a drench test, which is a modification of the faecal egg count reduction test; individual faecal samples were collected from the same group of lambs before and after anthelmintic treatment, the number of eggs present pre and post treatment was subsequently determined from a pooled sample...
2017: Irish Veterinary Journal
https://www.readbyqxmd.com/read/28194438/a-role-for-muscarinic-receptors-in-neutrophil-extracellular-trap-formation-and-levamisole-induced-autoimmunity
#4
Carmelo Carmona-Rivera, Monica M Purmalek, Erica Moore, Meryl Waldman, Peter J Walter, H Martin Garraffo, Karran A Phillips, Kenzie L Preston, Jonathan Graf, Mariana J Kaplan, Peter C Grayson
Levamisole, an anthelmintic drug with cholinergic properties, has been implicated in cases of drug-induced vasculitis when added to cocaine for profit purposes. Neutrophil extracellular trap (NET) formation is a cell death mechanism characterized by extrusion of chromatin decorated with granule proteins. Aberrant NET formation and degradation have been implicated in idiopathic autoimmune diseases that share features with levamisole-induced autoimmunity as well as in drug-induced autoimmunity. This study's objective was to determine how levamisole modulates neutrophil biology and its putative effects on the vasculature...
February 9, 2017: JCI Insight
https://www.readbyqxmd.com/read/28182663/dihydrobenz-e-1-4-oxazepin-2-3h-ones-a-new-anthelmintic-chemotype-immobilising-whipworm-and-reducing-infectivity-in-vivo
#5
Frederick A Partridge, Emma A Murphy, Nicky J Willis, Carole J R Bataille, Ruth Forman, Narinder Heyer-Chauhan, Bruno Marinič, Daniel J C Sowood, Graham M Wynne, Kathryn J Else, Angela J Russell, David B Sattelle
Trichuris trichiura is a human parasitic whipworm infecting around 500 million people globally, damaging the physical growth and educational performance of those infected. Current drug treatment options are limited and lack efficacy against the worm, preventing an eradication programme. It is therefore important to develop new treatments for trichuriasis. Using Trichuris muris, an established model for T. trichiura, we screened a library of 480 novel drug-like small molecules for compounds causing paralysis of the ex vivo adult parasite...
February 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28166084/unexpected-complication-of-cocaine-associated-anti-neutrophil-cytoplasmic-antibody-vasculitis-related-to-persistent-in-hospital-cocaine-use
#6
Travis D Olives, Rebecca L Kornas, Russell Fujisawa, Jon B Cole
INTRODUCTION: Levamisole-adulterated cocaine has been implicated in anti-neutrophil cytoplasmic antibody (ANCA) vasculitis. We present a case of spontaneous intraperitoneal hemorrhage, an unexpectedly severe complication of cocaine-related ANCA vasculitis, developing late during hospitalization. CASE REPORT: An adult male with a history of hepatitis C, distant cocaine use, and limited health care presented to a local emergency department (ED) with volume overload, renal failure, hyperkalemia and non-anion gap metabolic acidosis...
February 3, 2017: Journal of Addiction Medicine
https://www.readbyqxmd.com/read/28137984/alkaline-phosphatase-inhibitors-attenuate-renovascular-responses-to-norepinephrine
#7
Edwin K Jackson, Yumeng Zhang, Dongmei Cheng
Tissue nonspecific alkaline phosphatase (TNAP) contributes to the production of adenosine by the kidney, and A1-receptor activation enhances renovascular responses to norepinephrine. Therefore, we hypothesized that TNAP regulates renovascular responsiveness to norepinephrine. In isolated, perfused rat kidneys, the TNAP inhibitor l-p-bromotetramisole (0.1 mmol/L) decreased renal venous levels of 5'-AMP (adenosine precursor) and adenosine by 61% (P<0.0384) and 62% (P=0.0013), respectively, at 1 hour into treatment and caused a 10-fold rightward shift of the concentration-response relationship to exogenous norepinephrine (P<0...
March 2017: Hypertension
https://www.readbyqxmd.com/read/28132051/anca-associated-vasculitis-secondary-to-levamisole-adultered-cocaine-with-associated-membranous-nephropathy-a-case-series
#8
David Collister, Christie Sathianathan, Krista Ryz, Martin Karpinski, Keevin Bernstein, Ian W Gibson
BACKGROUND: Cocaine is a risk factor for acute kidney injury and chronic kidney disease with progression to end-stage renal disease. Levamisole is an adulterant that is added to cocaine to enhance its euphoric effects. Levamisole-adulterated cocaine (LAC) is associated with the distinct clinical syndromes of agranulocytosis, leukocytoclastic vasculitis, cocaine-induced midline destructive lesions (CIMDL), and ANCA-associated vasculitis (AAV) with pauci-immune necrotizing glomerulonephritis...
January 28, 2017: American Journal of Nephrology
https://www.readbyqxmd.com/read/28119441/painful-purpura-associated-with-exposure-to-levamisole-adulterated-cocaine
#9
Christina Yek, Xiaoxiao Li, Melissa Mauskar
No abstract text is available yet for this article.
January 24, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28091356/resistance-to-gastrointestinal-parasite-infection-in-djallonk%C3%A3-sheep
#10
A Traoré, D R Notter, A Soudre, A Kaboré, I Álvarez, I Fernández, M Sanou, M Shamshuddin, K Periasamy, H H Tamboura, F Goyache
Gastrointestinal parasitism places serious constraints on small ruminant production. The situation has been exacerbated by development of drug resistance in many parasite populations, leading to interest in identification of animals with genetically mediated resistance or tolerance to nematode infections. This study assessed the response to natural infection with gastrointestinal nematodes (GIN) in Djallonké sheep during the rainy season in the Sudan-Guinea Savannah region of Burkina Faso. Haemonchus contortus is the most prevalent GIN at this site and time...
January 16, 2017: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/28039309/tissue-nonspecific-alkaline-phosphatase-expression-is-needed-for-the-full-stimulation-of-t-cells-and-t-cell-dependent-colitis
#11
Cristina Hernández-Chirlaque, Reyes Gámez-Belmonte, Borja Ocón, Patricia Martínez-Moya, Stefan Wirtz, Fermín Sánchez de Medina, Olga Martínez-Augustin
BACKGROUND AND AIMS: Two alkaline phosphatase isoforms, intestinal (IAP) and tissue non-specific alkaline phosphatase (TNAP), are coexpressed in mouse colon, with the latter predominating in colitis. We aimed to examine the role of TNAP in T lymphocytes using heterozygous TNAP(+/-) mice (as TNAP(-/-) mice are nonviable). METHODS: In vitro primary cultures and in vivo T cell models using TNAP(+/-) mice were used. RESULTS: Stimulated splenocytes (lipopolysaccharide and concanavalin A) and T lymphocytes (concanavalin A and a-CD3/a-CD28) showed a decreased cytokine production and expression when compared with WT cells...
December 30, 2016: Journal of Crohn's & Colitis
https://www.readbyqxmd.com/read/28033523/-s-5-ethynyl-anabasine-a-novel-compound-is-a-more-potent-agonist-than-other-nicotine-alkaloids-on-the-nematode-asu-acr-16-receptor
#12
Fudan Zheng, Xiangwei Du, Tsung-Han Chou, Alan P Robertson, Edward W Yu, Brett VanVeller, Richard J Martin
Nematode parasites infect ∼2 billion people world-wide. Infections are treated and prevented by anthelmintic drugs, some of which act on nicotinic acetylcholine receptors (nAChRs). There is an unmet need for novel therapeutic agents because of concerns about the development of resistance. We have selected Asu-ACR-16 from a significant nematode parasite genus, Ascaris suum, as a pharmaceutical target and nicotine as our basic moiety (EC50 6.21 ± 0.56 μM, Imax 82.39 ± 2.52%) to facilitate the development of more effective anthelmintics...
December 9, 2016: International Journal for Parasitology, Drugs and Drug Resistance
https://www.readbyqxmd.com/read/28030345/dictyocaulosis-in-dairy-cows-in-brazil-an-epidemiological-clinical-pathological-and-therapeutic-approach
#13
Luan C Henker, Claiton I Schwertz, Neuber J Lucca, Manoela M Piva, Patricia Giacomin, Anderson Gris, Leandro A Rhoden, Luke J Norbury, Aleksandro S da Silva, Rafael A da Rosa, Ricardo E Mendes
An outbreak of severe parasitic pneumonia caused by Dictyocaulus viviparus was diagnosed in adult dairy cows in the municipality of Arabutã, Southern Brazil. The total morbidity in the herd was 71.9%, and the morbidity amongst adult lactating cattle was 100%. The main clinical signs observed were dyspnea, tachypnea, nasal discharge, decreased milk production, and cough. A necropsy was conducted on one animal in order to establish the diagnosis. The herd had been treated previously with levamisole; however, clinical signs persisted and became worse...
March 1, 2017: Acta Parasitologica
https://www.readbyqxmd.com/read/27995347/the-cholinomimetic-morantel-as-an-open-channel-blocker-of-the-ascaris-suum-acr-16-nachr
#14
Melanie Abongwa, Katherine E Baber, Richard J Martin, Alan P Robertson
Nematode parasite infections pose a significant threat in human and veterinary medicine. At least a third of the world's population is at risk from nematode parasite infections. These infections not only cause health problems, but also cause loss of livestock production and hence, economic losses. Anthelmintic drugs are the mainstay by which control of nematode parasite infections is achieved. Many of the currently available anthelmintics act on nicotinic acetylcholine receptors (nAChRs). However, the detailed mode of action (MOA) of these anthelmintics is not clearly understood...
December 2016: Invertebrate Neuroscience: IN
https://www.readbyqxmd.com/read/27956774/evaluation-of-five-treatments-to-control-intestinal-parasites-in-sheep-in-ayapango-state-of-mexico
#15
Rafael Heredia, Emma Aguilar, Camilo Romero, Linda Bautista, Germán Mendoza
AIM: Intestinal parasites are one of the most common problems in sheep production systems. However, the strategies used to eliminate these parasites have not yielded satisfactory results. Therefore, the aim of this study was to determine the effect of five anthelmintics (with different active ingredients) on the parasite load in sheep. MATERIALS AND METHODS: In this study, 107 Rambouillet breed sheep were randomly assigned to five groups. Next, fecal samples were taken directly from the rectum and sent to the laboratory for analysis...
November 2016: Veterinary World
https://www.readbyqxmd.com/read/27951754/immunomodulatory-activity-of-buchholzia-coriacea-seed-methanol-extract-on-trypanosoma-brucei-brucei-infected-mice
#16
James I Eze, Chioma F Ekelozie, Nwakego E Nweze
CONTEXT: The seeds of Buchholzia coriacea Engler (Capparaceae) are used in Eastern Nigeria to treat feverish conditions, and to treat malaria and sleeping sickness that cause fever. OBJECTIVE: The current study assesses the immunomodulatory activity of Buchholzia coriacea seed extract on Trypanosoma brucei brucei infected mice. MATERIALS AND METHODS: Delayed hypersensitivity reaction, humoral antibody response and in-vivo leucocyte mobilization tests were assessed in three different experiments to determine the effect of the extract on immune response...
December 2017: Pharmaceutical Biology
https://www.readbyqxmd.com/read/27942866/protective-effects-of-levamisole-acetylsalicylic-acid-and-%C3%AE-tocopherol-against-dioxin-toxicity-measured-as-the-expression-of-ahr-and-cox-2-in-a-chicken-embryo-model
#17
Kinga Gostomska-Pampuch, Alicja Ostrowska, Piotr Kuropka, Maciej Dobrzyński, Piotr Ziółkowski, Artur Kowalczyk, Ewa Łukaszewicz, Andrzej Gamian, Ireneusz Całkosiński
Polychlorinated dibenzo-p-dioxins and dibenzofurans (dioxins) are classed as persistent organic pollutants and have adverse effects on multiple functions within the body. Dioxins are known carcinogens, immunotoxins, and teratogens. Dioxins are transformed in vivo, and interactions between the products and the aryl hydrocarbon receptor (AhR) lead to the formation of proinflammatory and toxic metabolites. The aim of this study was to determine whether α-tocopherol (vitamin E), acetylsalicylic acid (ASA), and levamisole can decrease the amount of damage caused by dioxins...
December 10, 2016: Histochemistry and Cell Biology
https://www.readbyqxmd.com/read/27932058/tnap-stimulates-vascular-smooth-muscle-cell-trans-differentiation-into-chondrocytes-through-calcium-deposition-and-bmp-2-activation-possible-implication-in-atherosclerotic-plaque-stability
#18
Maya Fakhry, Monika Roszkowska, Anne Briolay, Carole Bougault, Alain Guignandon, Juan Ignacio Diaz-Hernandez, Miguel Diaz-Hernandez, Slawomir Pikula, René Buchet, Eva Hamade, Bassam Badran, Laurence Bessueille, David Magne
Atherosclerotic plaque calcification varies from early, diffuse microcalcifications to a bone-like tissue formed by endochondral ossification. Recently, a paradigm has emerged suggesting that if the bone metaplasia stabilizes the plaques, microcalcifications are harmful. Tissue-nonspecific alkaline phosphatase (TNAP), an ectoenzyme necessary for mineralization by its ability to hydrolyze inorganic pyrophosphate (PPi), is stimulated by inflammation in vascular smooth muscle cells (VSMCs). Our objective was to determine the role of TNAP in trans-differentiation of VSMCs and calcification...
December 6, 2016: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/27915012/intra-laboratory-validated-human-cell-based-in-vitro-vasculogenesis-angiogenesis-test-with-serum-free-medium
#19
T Toimela, O Huttala, E Sabell, M Mannerström, J R Sarkanen, T Ylikomi, T Heinonen
Vasculogenesis and angiogenesis are the processes by which new blood vessels are formed. We have developed a serum-free human adipose stromal cell and umbilical cord vein endothelial cell based vasculogenesis/angiogenesis test. In this study, the test was validated in our GLP laboratory following the OECD Guidance Document 34 [1] using erlotinib, acetylic salicylic acid, levamisole, 2-methoxyestradiol, anti-VEGF, methimazole, and D-mannitol to show its reproducibility, repeatability, and predictivity for humans...
November 30, 2016: Reproductive Toxicology
https://www.readbyqxmd.com/read/27908269/levamisole-a-positive-allosteric-modulator-for-the-%C3%AE-3%C3%AE-4-nicotinic-acetylcholine-receptors-prevents-weight-gain-in-cd-1-mice-on-a-high-fat-diet
#20
Jeanne A Lewis, Jerrel L Yakel, Anshul A Pandya
Neuronal nicotinic acetylcholine receptors (nAChRs) regulate the function of multiple neurotransmitter pathways throughout the central nervous system. This includes nAChRs found on the proopiomelanocortin neurons in the hypothalamus. Activation of these nAChRs by nicotine causes a decrease in consumption of food in rodents. In this study, we tested the effect of subtype selective allosteric modulators for nAChRs on the body weight of CD-1 mice. Levamisole, an allosteric modulator for the α3β4 subtype of nAChRs, prevented weight gain in mice that were fed a high fat diet...
December 1, 2016: Current Pharmaceutical Design
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