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https://www.readbyqxmd.com/read/27910037/effect-of-activated-charcoal-on-rivaroxaban-complex-absorption
#1
Edouard Ollier, Sophie Hodin, Julien Lanoiselée, Jean Escal, Sandrine Accassat, Elodie De Magalhaes, Thierry Basset, Laurent Bertoletti, Patrick Mismetti, Xavier Delavenne
OBJECTIVE: To quantify the impact of activated charcoal (AC) on rivaroxaban exposure in healthy volunteers. METHODS: This was an open-label study with an incomplete cross-over design of single-dose rivaroxaban (40 mg) administered alone or with AC in 12 healthy volunteers. The study comprised three treatment periods in randomised sequence, one with rivaroxaban administered alone and two with AC given at 2, 5 or 8 h post-dose. Rivaroxaban plasma concentration was measured in blood samples drawn at 16 time points...
December 2, 2016: Clinical Pharmacokinetics
https://www.readbyqxmd.com/read/27909718/enzalutamide-inhibits-proliferation-of-gemcitabine-resistant-bladder-cancer-cells-with-increased-androgen-receptor-expression
#2
Koji Kameyama, Kengo Horie, Kosuke Mizutani, Taku Kato, Yasunori Fujita, Kyojiro Kawakami, Toshio Kojima, Tatsuhiko Miyazaki, Takashi Deguchi, Masafumi Ito
Advanced bladder cancer is treated mainly with gemcitabine and cisplatin, but most patients eventually become resistance. Androgen receptor (AR) signaling has been implicated in bladder cancer as well as other types of cancer including prostate cancer. In this study, we investigated the expression and role of AR in gemcitabine-resistant bladder cancer cells and also the potential of enzalutamide, an AR inhibitor, as a therapeutic for the chemoresistance. First of all, we established gemcitabine-resistant T24 cells (T24GR) from T24 bladder cancer cells and performed gene expression profiling...
November 24, 2016: International Journal of Oncology
https://www.readbyqxmd.com/read/27900664/improvement-production-of-hyaluronic-acid-by-streptococcus-zooepidemicus-in-sugarcane-molasses
#3
Nicole Caldas Pan, Hanny Cristina Braga Pereira, Maria de Lourdes Corradi da Silva, Ana Flora Dalberto Vasconcelos, Maria Antonia Pedrine Colabone Celligoi
Microbial hyaluronic acid (HA) production has been preferred rather than extraction from animal tissue for medical and cosmetic applications. In this context, to obtain an economically competitive HA production by Streptococcus zooepidemicus, culture conditions were studied to improve the polymer production in sugarcane molasses. The highest HA production by S. zooepidemicus ATCC 39920 achieved was 2.825 g. L(-1) in a 4.5 L bioreactor with controlled pH (8.0) and medium containing molasses (85.35 g.L(-1) total sugar) pretreated with activated charcoal and yeast extract (50 g...
November 30, 2016: Applied Biochemistry and Biotechnology
https://www.readbyqxmd.com/read/27871266/antioxidant-antidiarrheal-hypoglycemic-and-thrombolytic-activities-of-organic-and-aqueous-extracts-of-hopea-odorata-leaves-and-in-silico-pass-prediction-of-its-isolated-compounds
#4
Mohammad Shah Hafez Kabir, Mohammed Munawar Hossain, Md Imtiazul Kabir, Shabbir Ahmad, Nishan Chakrabarty, Md Atiar Rahman, Md Mominur Rahman
BACKGROUND: Hopea Odorata, locally known as Telsur (Bangladesh), has some traditional uses as folk medicine. This study aims to investigate the antioxidant, antidiarrheal, hypoglycemic and thrombolytic activities of H. odorata leaf extracts as new therapeutic prospects predicting the activity of some of the isolated compounds of this plant. METHODS: Leaves of Hopea odorata was extracted with pure methanol (MEHO), ethanol (EEHO) and water (AEHO). The extract was tested for antioxidant activity by using reducing power and H2O2 scavenging assay...
November 21, 2016: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/27865658/characterization-of-particulate-phase-polycyclic-aromatic-hydrocarbons-emitted-from-incense-burning-and-their-bioreactivity-in-raw264-7-macrophage
#5
Tzu-Ting Yang, Su-Chen Ho, Lu-Te Chuang, Hsiao-Chi Chuang, Ya-Ting Li, Jyun-Jie Wu
This study investigated the effects of particle-bound polycyclic aromatic hydrocarbons (PAHs) produced from burning three incense types on and their bioreactivity in the RAW 264.7 murine macrophage cell line. Gas chromatography/mass spectrometry was used to determine the levels of 16 identified PAHs. Macrophages were exposed to incense particle extracts at concentrations of 0, 3.125, 6.25, 12.5, 25, 50, and 100 μg/mL for 24 h. After exposure, cell viability and nitric oxide (NO) and inflammatory mediator [tumor necrosis factor (TNF)-α] production of the cells were examined...
November 16, 2016: Environmental Pollution
https://www.readbyqxmd.com/read/27863000/activated-charcoal-hemoperfusion-in-the-treatment-of-experimental-amitriptyline-poisoning-in-pigs-the-effect-on-amitriptyline-plasma-concentration-and-hemodynamic-parameters
#6
Tejs Jansen, Henrik Petersen, Cecilie M Malskaer, Charlotte Gabel-Jensen, Kim Dalhoff, Thomas Eriksen, Bo Belhage, Lotte C G Hoegberg
Coated activated charcoal hemoperfusion (CAC-HP) is a well-known treatment modality. Case reports have revealed conflicting results about the efficacy of CAC-HP in the treatment of amitriptyline (AT) poisoning, and no randomised clinical trials have been identified in the literature. This study aimed at quantifying the efficacy of modern CAC-HP as an adjunctive treatment of AT intoxication compared to standard care alone. Fourteen female Danish landrace pigs were randomized to either standard care or standard care plus 4 hr of CAC-HP...
November 14, 2016: Basic & Clinical Pharmacology & Toxicology
https://www.readbyqxmd.com/read/27859121/the-functional-extinction-of-andean-megafauna
#7
Angela Rozas-Davila, Bryan G Valencia, Mark B Bush
Controversy exists over the cause and timing of the extinction of the Pleistocene megafauna. In the tropical Andes, deglaciation and associated rapid climate change began ~8,000 years before human arrival, providing an opportunity to separate the effects of climate change from human hunting on megafaunal extinction. We present a paleoecological record spanning the last 25,000 years from Lake Pacucha, Peru (3,100 m elevation). Fossil pollen, charcoal, diatoms, and the dung fungus Sporormiella, chronicle a two-stage megaherbivore population collapse...
October 2016: Ecology
https://www.readbyqxmd.com/read/27858791/preparation-characterization-and-application-of-activated-carbon-from-low-cost-material-for-the-adsorption-of-tetracycline-antibiotic-from-aqueous-solutions
#8
Afshin Takdastan, Amir Hossein Mahvi, Eder C Lima, Mohammad Shirmardi, Ali Akbar Babaei, Gholamreza Goudarzi, Abdolkazem Neisi, Mohammad Heidari Farsani, Mehdi Vosoughi
In this study, a new zinc chloride (ZnCl2) impregnated activated carbon (Zn-AC) was prepared from oak charcoals as low-cost material and used as adsorbent for tetracycline (TC) adsorption. The Zn-AC was characterized using field emission-scanning electron microscope, powder X-ray diffraction, and CHNS-O analyses. Specific surface area of the adsorbent was also measured using the Brunauer, Emmett and Teller (BET) isotherm model. The TC adsorption onto the Zn-AC was investigated as a function of solution pH, adsorbent dosage, and inorganic cations (Li(+), K(+), Mg(2+), Ca(2+), Ni(2+), and Fe(3+)) and anions (HCO3(-), NO3(-) and SO4(2-)) that could interfere in the adsorption of TC...
November 2016: Water Science and Technology: a Journal of the International Association on Water Pollution Research
https://www.readbyqxmd.com/read/27854283/addition-of-carbon-to-the-culture-medium-improves-the-detection-efficiency-of-aflatoxin-synthetic-fungi
#9
Tadahiro Suzuki, Yumiko Iwahashi
Aflatoxin (AF) is a harmful secondary metabolite that is synthesized by the Aspergillus species. Although AF detection techniques have been developed, techniques for detection of AF synthetic fungi are still required. Techniques such as plate culture methods are continually being modified for this purpose. However, plate culture methods require refinement because they suffer from several issues. In this study, activated charcoal powder (carbon) was added to a culture medium containing cyclodextrin (CD) to enhance the contrast of fluorescence and improve the detection efficiency for AF synthetic fungi...
November 15, 2016: Toxins
https://www.readbyqxmd.com/read/27825736/in-vitro-growth-and-cell-wall-degrading-enzyme-production-by-argentinean-isolates-of-macrophomina-phaseolina-the-causative-agent-of-charcoal-rot-in-corn
#10
Araceli M Ramos, Marcela Gally, Gala Szapiro, Tatiana Itzcovich, Maira Carabajal, Laura Levin
Macrophomina phaseolina is a polyphagous phytopathogen, causing stalk rot on many commercially important species. Damages caused by this pathogen in soybean and maize crops in Argentina during drought and hot weather have increased due its ability to survive as sclerotia in soil and crop debris under non-till practices. In this work, we explored the in vitro production of plant cell wall-degrading enzymes [pectinases (polygalacturonase and polymethylgalacturonase); cellulases (endoglucanase); hemicellulases (endoxylanase) and the ligninolytic enzyme laccase] by several Argentinean isolates of M...
November 5, 2016: Revista Argentina de Microbiología
https://www.readbyqxmd.com/read/27809331/development-of-a-photocatalytic-filter-to-control-indoor-air-quality
#11
Barbara Del Curto, Paolo Tarsini, Alberto Cigada
BACKGROUND: The aim of this work was the development and characterization of a photocatalytic filter for the treatment of indoor air, characterized by a low pressure drop. METHODS: The filter (photocatalytic filter) was based on a polyester substrate additivated with active carbon (Carbotex 150-6), treated with a sol of titanium dioxide (Sol 121-AB; NextMaterials Ltd.) and illuminated with UV LEDs to induce photocatalytic activity. RESULTS: Tests showed that this filter, used in a suitable device for air circulation with a very low noise level, had the ability to block solid particulates, to photocatalytically oxidize a major fraction of volatile organic compounds (VOCs) and deactivate all of the bacteria blocked on the filter, in contrast to traditional commercial air filters on which the bacteria remain viable...
November 2, 2016: Journal of Applied Biomaterials & Functional Materials
https://www.readbyqxmd.com/read/27799833/antidiarrheal-activity-of-methanolic-extract-of-the-root-bark-of-cordia-africana
#12
Assefa Belay Asrie, Mohammedbrhan Abdelwuhab, Zewdneh Shewamene, Desalegn Asmelashe Gelayee, Getnet Mequanint Adinew, Eshetie Melese Birru
An ethnobotanical study in Agew-Awi and Amhara peoples in northwest Ethiopia reported that Cordia africana is used traditionally in the treatment of liver disease, amebiasis, stomachache, and diarrhea. The root and root bark are reported to be used in the treatment of diarrhea. Therefore, this study was intended to evaluate the antidiarrheal effect of C. africana against castor oil-induced diarrhea in mice. The antidiarrheal effect of the plant was tested on castor oil-induced diarrhea in mice (23-25 g) of either sex...
2016: Journal of Experimental Pharmacology
https://www.readbyqxmd.com/read/27793241/seizure-due-to-multiple-drugs-intoxication-a-case-report
#13
Handan Gulec, Munire Babayigit, Aysun Kurtay, Mehmet Sahap, Fatma Ulus, Zehra Tutal, Eyup Horasanli
The mechanism of the antidepressant effect of bupropion is not fully understood. Besides, using it in the treatment of depression, it is found to be effective in reducing withdrawal symptoms due to smoking cessation. A 28-year-old female patient with a history of depression was admitted to emergency department an hour after ingestion of bupropion, quetiapine, and levothyroxine in high doses to commit suicide. While accepting her into the Intensive Care Unit, she was awake, alert, disoriented and agitated. After 2h, the patient had a generalized tonic-clonic seizure...
November 2016: Brazilian Journal of Anesthesiology
https://www.readbyqxmd.com/read/27785371/vitamin-d-receptor-expression-in-human-bone-tissue-and-dose-dependent-activation-in-resorbing-osteoclasts
#14
Allahdad Zarei, Alireza Morovat, Kassim Javaid, Cameron P Brown
The effects of vitamin D on osteoblast mineralization are well documented. Reports of the effects of vitamin D on osteoclasts, however, are conflicting, showing both inhibition and stimulation. Finding that resorbing osteoclasts in human bone express vitamin D receptor (VDR), we examined their response to different concentrations of 25-hydroxy vitamin D3 [25(OH)D3] (100 or 500 nmol·L(-1)) and 1,25-dihydroxy vitamin D3 [1,25(OH)2D3] (0.1 or 0.5 nmol·L(-1)) metabolites in cell cultures. Specifically, CD14+ monocytes were cultured in charcoal-stripped serum in the presence of receptor activator of nuclear factor kappa-B ligand (RANKL) and macrophage colony-stimulating factor (M-CSF)...
2016: Bone Research
https://www.readbyqxmd.com/read/27777596/acmella-oleracea-and-achyrocline-satureioides-as-sources-of-natural-products-in-topical-wound-care
#15
Lais Thiemi Yamane, Eneida de Paula, Michelle Pedroza Jorge, Verônica Santana de Freitas-Blanco, Ílio Montanari Junior, Glyn Mara Figueira, Luís Adriano Anholeto, Patricia Rosa de Oliveira, Rodney Alexandre Ferreira Rodrigues
The Brazilian forests have one of the world's biggest biodiversities. Achyrocline satureioides (macela) and Acmella oleracea (jambu) are native species from Brazil with a huge therapeutic potential, with proved anti-inflammatory and anesthetic action, respectively. The jambu's crude extract after depigmentation with activated charcoal and macela's essential oil were incorporated in a film made with hydroxyethyl cellulose. Those films were evaluated by mechanical test using a texturometer and anti-inflammatory and anesthetic activities by in vivo tests: wound healing and antinociceptive...
2016: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/27773251/extraction-mechanism-of-ultrasound-assisted-extraction-and-its-effect-on-higher-yielding-and-purity-of-artemisinin-crystals-from-artemisia-annua-l-leaves
#16
Smain Chemat, Abdallah Aissa, Abdenour Boumechhour, Omar Arous, Hamid Ait-Amar
This study proposes an ultrasound-horn system for the extraction of a natural active compound "artemisinin" from Artemisia annua L. leaves as an alternative to hot maceration technique. Ultrasound leaching improves artemisinin recovery at all temperatures where only ten minutes is required to recover 70% (4.42mgg(-1)) compared to 60min of conventional hot leaching for the same yield. For instance, ultrasound treatment at 30°C produced a higher yield than the one obtained by conventional maceration at 40°C...
January 2017: Ultrasonics Sonochemistry
https://www.readbyqxmd.com/read/27756148/clinical-effects-of-unintentional-pediatric-buprenorphine-exposures-experience-at-a-single-tertiary-care-center
#17
Michael S Toce, Michele M Burns, Katherine A O'Donnell
CONTEXT: Exploratory buprenorphine ingestions in young children have been associated with clinically significant toxicity. However, detailed data on the clinical presentation and management of these patients are lacking. In an attempt to obtain more comprehensive data, we sought to examine a single center cohort of patients with report of buprenorphine exposure and provide descriptive analysis of rates of respiratory depression, time to respiratory depression, interventions, disposition, and outcomes...
October 19, 2016: Clinical Toxicology
https://www.readbyqxmd.com/read/27751290/aconite-poisoning-with-arrhythmia-and-shock
#18
Sandeep Tak, Manoj Lakhotia, Alok Gupta, Amit Sagar, Gopal Bohra, Rajesh Bajari
A 55-year-old male presented with history of nausea, vomiting, palpitation paresthesis and profuse sweating in emergency department 2h after ingestion of "Bachnaag" (Aconite) root. Examination revealed shock with irregular pulses. Initial ECG showed frequent multifocal ventricular ectopics (VE), which later turned to short runs of ventricular tachycardia (VT). Immediate gastric lavage was done and activated charcoal given. Patient was treated with fluid resuscitation without any improvement in blood pressure...
September 2016: Indian Heart Journal
https://www.readbyqxmd.com/read/27747715/coma-after-quetiapine-fumarate-intentional-overdose-in-a-71-year-old-man-a-case-report
#19
S Gibiino, A Trappoli, B Balzarro, A R Atti, D De Ronchi
A 71-year-old man developed coma with severe respiratory failure, hypotension, and tachycardia induced by the intentional ingestion of quetiapine fumarate extended release (XR) 20 g. At the time, he had been treated for bipolar depression with venlafaxine 75 mg/day, lamotrigine 100 mg/day, pregabalin 75 mg/day, and quetiapine XR 400 mg/day for approximately 1 year. Comorbidities were hypertension treated with metoprolol, diabetes mellitus type 2 treated with metformin, and benign prostatic hyperplasia treated with silodosin...
December 2015: Drug Safety—Case Reports
https://www.readbyqxmd.com/read/27687528/respiratory-health-effects-of-occupational-exposure-to-charcoal-dust-in-namibia
#20
Ndinomholo Hamatui, Rajen N Naidoo, Nnenesi Kgabi
BACKGROUND: Charcoal processing activities can increase the risk of adverse respiratory outcomes. OBJECTIVE: To determine dose-response relationships between occupational exposure to charcoal dust, respiratory symptoms and lung function among charcoal-processing workers in Namibia. METHODS: A cross-sectional study was conducted with 307 workers from charcoal factories in Namibia. All respondents completed interviewer-administered questionnaires...
August 15, 2016: International Journal of Occupational and Environmental Health
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