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Drugs in Lactation

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https://www.readbyqxmd.com/read/28210968/study-on-critical-sized-ultra-high-molecular-weight-polyethylene-wear-particles-loaded-with-alendronate-sodium-in-vitro-release-and-cell-response
#1
Yumei Liu, Feng Shi, Kemeng Gong, Yang Liu, Wei Zhi, Jie Weng, Shuxin Qu
The aim of this study was to investigate the in vitro release and the effect of RAW 264.7 macrophages of critical-sized wear particles of ultra-high molecular weight polyethylene (UHMWPE) loaded with alendronate sodium (ALN), one of the most effective drugs to treat osteoporosis in clinic. The critical-sized UHMWPE-ALN 0.5 wt.% wear particles were prepared by vacuum gradient filtration combined with Pluronic F-68. In vitro release of ALN from critical-sized UHMWPE-ALN wear particles was investigated in phosphate buffered saline (PBS) at 37 °C with a shaker...
April 2017: Journal of Materials Science. Materials in Medicine
https://www.readbyqxmd.com/read/28207834/a-cyclin-dependent-kinase-inhibitor-dinaciclib-in-preclinical-treatment-models-of-thyroid-cancer
#2
Shu-Fu Lin, Jen-Der Lin, Chuen Hsueh, Ting-Chao Chou, Richard J Wong
BACKGROUND: We explored the therapeutic effects of dinaciclib, a cyclin-dependent kinase (CDK) inhibitor, in the treatment of thyroid cancer. MATERIALS AND METHODS: Seven cell lines originating from three pathologic types of thyroid cancer (papillary, follicular and anaplastic) were studied. The cytotoxicity of dinaciclib was measured using a lactate dehydrogenase assay. The expression of proteins associated with cell cycle and apoptosis was assessed using Western blot analysis and immunofluorescence microscopy...
2017: PloS One
https://www.readbyqxmd.com/read/28203090/exploring-targeted-therapy-of-osteosarcoma-using-proteomics-data
#3
Parunya Chaiyawat, Jongkolnee Settakorn, Apiruk Sangsin, Pimpisa Teeyakasem, Jeerawan Klangjorhor, Aungsumalee Soongkhaw, Dumnoensun Pruksakorn
Despite multimodal therapeutic treatments of osteosarcoma (OS), some patients develop resistance to currently available regimens and eventually end up with recurrent or metastatic outcomes. Many attempts have been made to discover effective drugs for improving outcome; however, due to the heterogeneity of the disease, new therapeutic options have not yet been identified. This study aims to explore potential targeted therapy related to protein profiles of OS. In this review of proteomics studies, we extracted data on differentially expressed proteins (DEPs) from archived literature in PubMed and our in-house repository...
2017: OncoTargets and Therapy
https://www.readbyqxmd.com/read/28192751/ameliorative-potential-of-linagliptin-and-or-calcipotriol-on-bleomycin-induced-lung-fibrosis-in-vivo-and-in-vitro-study
#4
Ahmed M Kabel, Maaly A Abd Elmaaboud, Aliaa Atef, Mohammed H Baali
Pulmonary fibrosis is a serious medical problem that may significantly compromise respiratory functions. The aim of this work was to study the effect of linagliptin and/or calcipotriol on bleomycin-induced pulmonary fibrosis and to explore the possible mechanisms underlying this effect. One hundred and twenty male C57BL/6 mice were divided into 6 equal groups as follows: control group; bleomycin group; bleomycin+carboxymethylcellulose group; bleomycin+linagliptin group; bleomycin+calcipotriol group and bleomycin+linagliptin+calcipotriol group...
February 4, 2017: Environmental Toxicology and Pharmacology
https://www.readbyqxmd.com/read/28192604/dapagliflozin-lowered-blood-glucose-reduces-respiratory-p-aeruginosa-infection-in-diabetic-mice
#5
Annika Åstrand, Cecilia Wingren, Audra Benjamin, John S Tregoning, James P Garnett, Helen Groves, Simren Gill, Maria Orogo-Wenn, Anders J Lundqvist, Dafydd Walters, David M Smith, John D Taylor, Emma H Baker, Deborah L Baines
BACKGROUND AND PURPOSE: Hyperglycaemia increases glucose concentrations in airway surface liquid (ASL) and increases the risk of pulmonary Pseudomonas aeruginosa infection. We determined whether reduction of blood and airway glucose concentrations by the anti-diabetic drug dapagliflozin could reduce P. aeruginosa growth/survival in the lungs of diabetic mice. EXPERIMENTAL APPROACH: The effect of dapagliflozin on blood and airway glucose concentration, the inflammatory response and infection were investigated in C57BL/6 J (wild type, WT) or db/db (leptin receptor-deficient) mice, treated orally with dapagliflozin prior to intranasal dosing with lipopolysaccharide (LPS) or inoculation with P...
February 13, 2017: British Journal of Pharmacology
https://www.readbyqxmd.com/read/28191664/direct-arterial-injection-of-hyperpolarized-13-c-labeled-substrates-into-rat-tumors-for-rapid-mr-detection-of-metabolism-with-minimal-substrate-dilution
#6
Steven Reynolds, Stephen Metcalf, Edward J Cochrane, Rebecca C Collins, Simon Jones, Martyn N J Paley, Gillian M Tozer
PURPOSE: A rat model was developed to enable direct administration of hyperpolarized (13) C-labeled molecules into a tumor-supplying artery for magnetic resonance spectroscopy (MRS) studies of tumor metabolism. METHODS: Rat P22 sarcomas were implanted into the right inguinal fat pad of BDIX rats such that the developing tumors received their principle blood supply directly from the right superior epigastric artery. Hyperpolarized (13) C-molecules were either infused directly to the tumor through the epigastric artery or systemically through the contralateral femoral vein...
February 12, 2017: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
https://www.readbyqxmd.com/read/28186714/lactic-acidosis-with-chloramphenicol-treatment-in-a-child-with-cystic-fibrosis
#7
Isabelle Goyer, Massimiliano Iseppon, Céline Thibault, Rachid Abaji, Maja Krajinovic, Julie Autmizguine
Children with cystic fibrosis are commonly colonized with multi-resistant bacteria. In such patients, infectious exacerbation may require salvage therapy with uncommonly used antimicrobials, including chloramphenicol. Chloramphenicol is rarely used nowadays because of the associated severe adverse events. We describe the case of a 15-year-old female with terminal cystic fibrosis who required intravenous (IV) chloramphenicol treatment for a Burkholderia cepacia (B. cepacia) exacerbation. The child subsequently developed lactic acidosis and secondary respiratory compensation adding to her baseline respiratory distress...
January 30, 2017: Journal of Population Therapeutics and Clinical Pharmacology
https://www.readbyqxmd.com/read/28179068/the-effect-of-acute-and-short-term-glucocorticoid-administration-on-exercise-capacity-and-metabolism
#8
REVIEW
Alexander Tacey, Lewan Parker, Andrew Garnham, Tara C Brennan-Speranza, Itamar Levinger
OBJECTIVES: Glucocorticoids (GC) are commonly used in the treatment of inflammatory conditions. Chronic GC administration has severe side effects that can decrease exercise capacity and, as a result performance. The side effects of acute (single dose) and short term (<7 days) GC administration are less severe, therefore the impact on exercise performance is unclear. Consequently, it is of interest to determine the influence of acute and short term GC administration on exercise capacity and performance and investigate the relationship with metabolism...
January 18, 2017: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/28178358/substrate-analogous-inhibitors-exert-antimalarial-action-by-targeting-the-plasmodium-lactate-transporter-pffnt-at-nanomolar-scale
#9
André Golldack, Björn Henke, Bärbel Bergmann, Marie Wiechert, Holger Erler, Alexandra Blancke Soares, Tobias Spielmann, Eric Beitz
Resistance against all available antimalarial drugs calls for novel compounds that hit unexploited targets in the parasite. Here, we show that the recently discovered Plasmodium falciparum lactate/proton symporter, PfFNT, is a valid druggable target, and describe a new class of fluoroalkyl vinylogous acids that potently block PfFNT and kill cultured parasites. The original compound, MMV007839, is derived from the malaria box collection of potent antimalarials with unknown targets and contains a unique internal prodrug principle that reversibly switches between a lipophilic transport form and a polar, substrate-analogous active form...
February 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28160160/the-unexpected-discovery-of-brucella-abortus-buck-19-vaccine-in-goats-from-ecuador-underlines-the-importance-of-biosecurity-measures
#10
Jorge Ron-Román, Dirk Berkvens, Daniela Barzallo-Rivadeneira, Alexandra Angulo-Cruz, Pablo González-Andrade, Elizabeth Minda-Aluisa, Washington Benítez-Ortíz, Jef Brandt, Richar Rodríguez-Hidalgo, Claude Saegerman
Very few, mostly old, and only preliminary serological studies of brucellosis in goats exist in Ecuador. In order to assess the current epidemiological situation, we performed a cross-sectional serological study in the goat populations of Carchi (n = 160 animals), Pichincha (n = 224 animals), and Loja provinces (n = 2024 animals). Only two positive serological results (RB negative and SAT-EDTA ≥400 IU/ml) were obtained in lactating goats from the same farm in Quito (Pichincha province). Additionally, milk was sampled from 220 animals in Pichincha province...
February 3, 2017: Tropical Animal Health and Production
https://www.readbyqxmd.com/read/28158227/beneficial-effects-of-metformin-on-energy-metabolism-and-visceral-fat-volume-through-a-possible-mechanism-of-fatty-acid-oxidation-in-human-subjects-and-rats
#11
Ichiro Tokubuchi, Yuji Tajiri, Shimpei Iwata, Kento Hara, Nobuhiko Wada, Toshihiko Hashinaga, Hitomi Nakayama, Hiroharu Mifune, Kentaro Yamada
OBJECTIVE: Metformin is known to have a beneficial effect on body weight and body composition, although the precise mechanism has not been elucidated yet. The aim of this study is to investigate the effects of metformin on energy metabolism and anthropometric factors in both human subjects and rats. METHODS: In human studies, metformin (1500mg/day) was administered to 23 healthy subjects and 18 patients with type 2 diabetes for 2 weeks. Metabolic parameters and energy metabolism were measured during a meal tolerance test in the morning before and after the treatment of metformin...
2017: PloS One
https://www.readbyqxmd.com/read/28155294/pulmonary-gas-exchange-and-acid-base-status-during-immobilisation-of-black-rhinoceroses-i-diceros-bicornis-i-in-zimbabwe
#12
Åsa Fahlman, Anna Edner, Sandra Wenger, Chris Foggin, Görel Nyman
When immobilising wildlife, adverse side effects can include hypoxaemia, acidosis and hypertension. Pulmonary gas exchange and acid-base status were evaluated during immobilisation of 25 free-ranging and one boma-held black rhinoceros (Diceros bicornis) in Zimbabwe. The effect of different body positions on arterial oxygenation was evaluated. A combination of the following drugs was used: an opioid (etorphine or thiafentanil), azaperone and an a2 -adrenoceptor agonist (detomidine or xylazine). Respiratory and heart rates, rectal temperature and pulse oximetry-derived haemoglobin oxygen saturation were recorded...
December 2, 2016: Journal of the South African Veterinary Association
https://www.readbyqxmd.com/read/28142224/effects-of-sulforaphane-on-neural-stem-cell-proliferation-and-differentiation
#13
Zhenxian Han, Qian Xu, Changfu Li, Hong Zhao
Sulforaphane (SFN) is a natural organosulfur compound with ant-oxidant and anti-inflammation properties. The objective of this study is to investigate the effect of SFN on the proliferation and differentiation of neural stem cells (NSC). NSCs were exposed to SFN at the concentrations ranging from 0.25 to 10 µM. Cell viability was evaluated with MTT assay and lactate dehydogenase (LDH) release assay. The proliferation of NSCs was evaluated with neurosphere formation assay and Ki-67 staining. The level of Tuj-1 was evaluated with immunostaining and western blot to assess NSC neuronal differentiation...
January 31, 2017: Genesis: the Journal of Genetics and Development
https://www.readbyqxmd.com/read/28142152/improving-safe-and-effective-use-of-drugs-in-pregnancy-and-lactation-workshop-summary
#14
Laura E Riley, Alison G Cahill, Richard Beigi, Renate Savich, George Saade
In February 2015, given high rates of use of medications by pregnant women and the relative lack of data on safety and efficacy of many drugs utilized in pregnancy, the Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), the Society for Maternal-Fetal Medicine (SMFM), the American College of Obstetricians and Gynecologists (ACOG), and the American Academy of Pediatrics (AAP) convened a group of experts to review the "current" state of the clinical care and science regarding medication use during the perinatal period...
January 31, 2017: American Journal of Perinatology
https://www.readbyqxmd.com/read/28141738/new-insights-into-the-mechanisms-of-the-ketogenic-diet
#15
Detlev Boison
PURPOSE OF REVIEW: High-fat, low-carbohydrate ketogenic diets have been used for almost a century for the treatment of epilepsy. Used traditionally for the treatment of refractory pediatric epilepsies, in recent years the use of ketogenic diets has experienced a revival to include the treatment of adulthood epilepsies as well as conditions ranging from autism to chronic pain and cancer. Despite the ability of ketogenic diet therapy to suppress seizures refractory to antiepileptic drugs and reports of lasting seizure freedom, the underlying mechanisms are poorly understood...
January 30, 2017: Current Opinion in Neurology
https://www.readbyqxmd.com/read/28139970/hemodialysis-refractory-metformin-associated-lactate-acidosis-with-hypoglycemia-hypothermia-and-bradycardia-in-a-diabetic-patient-with-belated-diagnosis-and-chronic-kidney-disease%C3%A2
#16
Lada Zibar, Karin Zibar
Metformin is a first-line oral antidiabetic therapy for patients with type 2 diabetes mellitus. Metformin-associated lactate acidosis (MALA) is a well-known, life-threatening, but rare side effect of metformin therapy. Chronic kidney disease (CKD) patients have a much greater risk of MALA. We report the case of a severe refractory MALA despite hemodialysis (HD) treatment, associated with hypoglycemia, hypothermia, and bradycardia in a neglected and thus untimely-recognized CKD patient with type 2 diabetes mellitus...
January 30, 2017: International Journal of Clinical Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/28134407/-metformin-associated-lactic-acidosis-and-acute-kidney-injury
#17
Paolo Greco, Giuseppe Regolisti, Riccardo Antoniotti, Caterina Maccari, Elisabetta Parenti, Silvia Corrado, Enrico Fiaccadori
Metformin is recommended as the treatment of choice in patients with type 2 diabetes mellitus because of its efficacy, general tolerability and low cost. Recent guidelines have extended the use of metformin to patients with Chronic Kidney Disease (CKD) up to stage III. However, in the recent literature, cases of MALA (metformin-associated lactic acidosis) are increasingly reported. MALA is the most dangerous side effect of the drug, with an incidence rate of 2-9 cases per 100000 person-years of exposure. We report on two patients with accidental metformin overdose, severe lactic acidosis and acute kidney injury...
November 2016: Giornale Italiano di Nefrologia: Organo Ufficiale Della Società Italiana di Nefrologia
https://www.readbyqxmd.com/read/28132882/tumor-stroma-interaction-is-mediated-by-monocarboxylate-metabolism
#18
Brijesh B Patel, Ellen Ackerstaff, Inna S Serganova, John E Kerrigan, Ronald G Blasberg, Jason A Koutcher, Debabrata Banerjee
Human breast tumors contain significant amounts of stromal cells. There exists strong evidence that these stromal cells support cancer development and progression by altering various pathways (e.g. downregulation of tumor suppressor genes or autocrine signaling loops). Here, we suggest that stromal carcinoma-associated fibroblasts (CAFs), shown to be generated from bone marrow-derived mesenchymal stem cells, may (i) recycle tumor-derived lactate for their own energetic requirements, thereby sparing glucose for neighboring glycolytic tumor cells, and (ii) subsequently secrete surplus energetically and biosynthetically valuable metabolites of lactate oxidation, such as pyruvate, to support tumor growth...
January 26, 2017: Experimental Cell Research
https://www.readbyqxmd.com/read/28126648/maternal-consumption-of-low-isoflavone-soy-protein-isolate-alters-hepatic-gene-expression-and-liver-development-in-rat-offspring
#19
Sae Bom Won, Anna Han, Young Hye Kwon
In utero environment is known to affect fetal development. Especially, the distinct fetal programming of carcinogenesis was reported in offspring exposed to maternal diets containing soy protein isolate (SPI) or genistein. Therefore, we investigated whether maternal consumption of low-isoflavone SPI or genistein alters hepatic gene expression and liver development in rat offspring. Female Sprague-Dawley rats were fed a casein diet, a low-isoflavone SPI diet or a casein diet supplemented with genistein (250 mg/kg diet) for 2 weeks before mating and throughout pregnancy and lactation...
January 12, 2017: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/28122191/influence-of-ambient-temperature-and-confinement-on-the-chemical-immobilization-of-fallow-deer-dama-dama
#20
Giovanna Lucrezia Costa, Bernadette Nastasi, Marcello Musicò, Filippo Spadola, Manuel Morici, Giuseppe Cucinotta, Claudia Interlandi
We used physiological parameters and the duration and quality of anesthesia to compare the effects of two ambient temperatures and of the duration of pre-immobilization confinement on the chemical immobilization of fallow deer. We divided 45 free-ranging fallow deer ( Dama dama ) into two groups: Group A were deer captured in winter (average 12 C), using 1 mg/kg of xylazine and 1 mg/kg of tiletamine-zolazepam, and Group B were deer captured in spring (average 24 C), using 2 mg/kg of xylazine and 1.5 mg/kg of tiletamine-zolazepam, after being confined in a pen...
January 25, 2017: Journal of Wildlife Diseases
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