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Drugs in Lactation

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https://www.readbyqxmd.com/read/28444390/characterisation-of-drug-specific-signalling-between-primary-human-hepatocytes-and-immune-cells
#1
Monday O Ogese, Lee Faulkner, Roz E Jenkins, Neil S French, Ian M Copple, Daniel J Antoine, Mohamed Elmasry, Hasan Malik, Christopher E Goldring, B Kevin Park, Catherine Betts, Dean J Naisbitt
It is now apparent that antigen-specific T-cells are activated in certain patients with drug-induced liver injury (DILI). Since cross-talk between hepatocytes and immune cells is likely to be critical in determining the outcome of drug exposure, the aim of this study was to profile the signals released by drug-treated hepatocytes and to characterise the impact of these molecules on dendritic cells. Human hepatocytes were exposed to three drugs (flucloxacillin, amoxicillin and isoniazid) associated with DILI potentially mediated by the adaptive immune system as drug-specific T-cells have been isolated from DILI patients, and the metabolite nitroso-sulfamethoxazole (SMX-NO)...
April 21, 2017: Toxicological Sciences: An Official Journal of the Society of Toxicology
https://www.readbyqxmd.com/read/28435048/morella-serrata-lam-killick-stabilizes-biomembrane-and-rejuvenates-sexual-competence-in-male-wistar-rats
#2
S Sabiu, Aot Ashafa
ETHNOPHARMACOLOGICAL RELEVANCE: Morella serrata L. is an indigenous medicinal plant to South and southern Africa with folkloric applications as aphrodisiac, laxative, antimicrobial, anti-inflammatory, analgesic, anti-hypertensive, antitussive and antidiabetic agent. AIM OF THE STUDY: This study evaluated the membrane stabilization and aphrodisiac potentials of its aqueous root extract in male Wistar rats. MATERIALS AND METHODS: While the membrane stabilization of the extract was investigated against bovine erythrocytes (BE), the male rats for the aphrodisiac study were randomized into five groups with animals in group 1 given sterile placebo and served as control...
April 20, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28434133/stiripentol-in-the-management-of-epilepsy
#3
REVIEW
Katherine C Nickels, Elaine C Wirrell
Stiripentol is a structurally unique antiepileptic drug that has several possible mechanisms of action, including diverse effects on the gamma-aminobutyric acid (GABA)-A receptor and novel inhibition of lactate dehydrogenase. Because of its inhibition of several cytochrome P450 enzymes, it has extensive pharmacokinetic interactions, which often necessitates reduction in doses of certain co-therapies, particularly clobazam. Stiripentol also has a neuroprotective action, by reducing calcium-mediated neurotoxicity...
April 22, 2017: CNS Drugs
https://www.readbyqxmd.com/read/28432751/acute-kidney-injury-plasma-lactate-concentrations-and-lactic-acidosis-in-metformin-users-a-godarts-study
#4
Paul J Connelly, Mike Lonergan, Enrique Soto-Pedre, Louise Donnelly, Kaixin Zhou, Ewan R Pearson
AIMS: Metformin is renally excreted and has been associated with the development of lactic acidosis. Although current advice is to omit metformin during illnesses that may increase risk of acute kidney injury (AKI), the evidence supporting this is lacking. We investigated the relationship between AKI, lactate concentrations and the risk of lactic acidosis in those exposed to metformin. METHODS: We undertook a population-based case-control study of lactic acidosis in 1,746 participants with Type 2 diabetes and 846 individuals without diabetes with clinically measured lactates with and without AKI between 1994-2014...
April 21, 2017: Diabetes, Obesity & Metabolism
https://www.readbyqxmd.com/read/28427443/benserazide-a-dopadecarboxylase-inhibitor-suppresses-tumor-growth-by-targeting-hexokinase-2
#5
Wei Li, Mengzhu Zheng, Shuangping Wu, Suyu Gao, Mei Yang, Zhimei Li, Qiuxia Min, Weiguang Sun, Lixia Chen, Guangya Xiang, Hua Li
BACKGROUND: Hexokinase (HK) is the rate-limiting enzyme in the first reaction of glycolysis. And Hexokinase 2 (HK2) is most closely related to malignant tumor which expresses at higher level compared with normal cells. HK2 plays a pivotal role in tumor initiation and maintenance, which provides a new target for cancer therapy. METHODS: Structure-based virtual ligand screening was used in hit identification from ZINC Drug Database. Microscale thermophoresis assay was performed to evaluate the binding affinity...
April 20, 2017: Journal of Experimental & Clinical Cancer Research: CR
https://www.readbyqxmd.com/read/28424755/rapid-low-cost-prototyping-of-transdermal-devices-for-personal-healthcare-monitoring
#6
Sanjiv Sharma, Anwer Saeed, Christopher Johnson, Nikolaj Gadegaard, Anthony Eg Cass
The next generation of devices for personal healthcare monitoring will comprise molecular sensors to monitor analytes of interest in the skin compartment. Transdermal devices based on microneedles offer an excellent opportunity to explore the dynamics of molecular markers in the interstitial fluid, however good acceptability of these next generation devices will require several technical problems associated with current commercially available wearable sensors to be overcome. These particularly include reliability, comfort and cost...
April 2017: Sensing and Bio-Sensing Research
https://www.readbyqxmd.com/read/28421385/in-vitro-and-in-vivo-anti-tumor-effects-of-selected-platinum-iv-and-dinuclear-platinum-ii-complexes-against-lung-cancer-cells
#7
Milos Arsenijevic, Marija Milovanovic, Snezana Jovanovic, Natalija Arsenijevic, Bojana Simovic Markovic, Marina Gazdic, Vladislav Volarevic
In the present study, cytotoxic effects of cisplatin, the most usually used chemotherapeutic agent, were compared with new designed platinum(IV) ([PtCl4(en)] (en = ethylenediamine) and [PtCl4(dach)]) (dach = (±)-trans-1,2-diaminocyclohexane) and platinum(II) complexes ([{trans-Pt(NH3)2Cl}2(μ-pyrazine)](ClO4)2 (Pt1), [{trans-Pt(NH3)2Cl}2(μ-4,4'-bipyridyl)](ClO4)2DMF(Pt2),[{trans-Pt(NH3)2Cl}2(μ-1,2-bis(4pyridyl)ethane)](ClO4)2 (Pt3)), in vitro and in vivo against human and murine lung cancer cells, to determine anti-tumor potential of newly synthesized platinum-based drugs in the therapy of lung cancer...
April 18, 2017: Journal of Biological Inorganic Chemistry: JBIC
https://www.readbyqxmd.com/read/28421296/metabolite-signatures-of-doxorubicin-induced-toxicity-in-human-induced-pluripotent-stem-cell-derived-cardiomyocytes
#8
Umesh Chaudhari, James K Ellis, Vilas Wagh, Harshal Nemade, Jürgen Hescheler, Hector C Keun, Agapios Sachinidis
Drug-induced off-target cardiotoxicity, particularly following anti-cancer therapy, is a major concern in new drug discovery and development. To ensure patient safety and efficient pharmaceutical drug development, there is an urgent need to develop more predictive cell model systems and distinct toxicity signatures. In this study, we applied our previously proposed repeated exposure toxicity methodology and performed (1)H NMR spectroscopy-based extracellular metabolic profiling in culture medium of human induced pluripotent stem cell-derived cardiomyocytes (hiPSC-CMs) exposed to doxorubicin (DOX), an anti-cancer agent...
April 18, 2017: Amino Acids
https://www.readbyqxmd.com/read/28420463/-changes-of-small-intestinal-villi-microcirculation-in-sidestream-dark-field-imaging-with-different-target-blood-pressure-in-rabbits-during-endotoxin-shock
#9
Fei Gao, Xiaoyun Fu, Mingjiang Qian, Yu Zhang, Guangsu Li, Jie Hu
OBJECTIVE: Changes of small intestine villus microcirculation perfusion in sidestream dark-field (SDF) imaging in the rabbits during endotoxic shock after fluid resuscitation with different target mean arterial pressure (MAP), and evaluation of feasibility of monitoring small intestine villus microcirculation by SDF were studied. METHODS: Sixty standard New Zealand white rabbits were randomly divided into two groups: low target MAP group (group A, n = 30) and high target MAP group (group B, n = 30)...
April 2017: Zhonghua Wei Zhong Bing Ji Jiu Yi Xue
https://www.readbyqxmd.com/read/28406093/antiviral-activity-of-nobiletin-against-chikungunya-virus-in-vitro
#10
Shih-Chao Lin, Mei-Chun Chen, Shiming Li, Chi-Chen Lin, Tony T Wang
BACKGROUND: Chikungunya virus (CHIKV), a highly contagious re-emerging virus, is transmitted by infected mosquitoes. CHIKV is prevalent in tropical countries and is continuing to creep farther north into temperate areas. CHIKV is responsible for induction of Chikungunya Fever (CF) and severe joint stiffness with the capability of developing into bilateral and systemic arthralgia or even encephalitis. Despite the high morbidity rate, no approved antiviral drug is available. Therefore, an anti-CHIKV therapy is necessary to control this disease...
April 13, 2017: Antiviral Therapy
https://www.readbyqxmd.com/read/28403066/non-hemodynamic-effects-of-catecholamines
#11
Clair Hartmann, Peter Radermacher, Martin Wepler, Benedikt Nubaum
Circulatory shock is defined as an imbalance between tissue oxygen supply and demand, and mostly results from a loss of blood volume, cardiac pump failure and/or reduction of vasomotor tone. The clinical hallmarks of circulatory shock are arterial hypotension and lactate acidosis. Since the degree and duration of hypotension are major determinants of outcome, vasopressor administration represents a cornerstone therapy to treat these patients. Current guidelines recommend the use of catecholamines as the drug of first choice...
April 11, 2017: Shock
https://www.readbyqxmd.com/read/28395211/antioxidant-and-antiapoptotic-effects-of-sea-cucumber-and-valsartan-against-doxorubicin-induced-cardiotoxicity-in-rats-the-role-of-low-dose-gamma-irradiation
#12
Doaa M Ibrahim, Rasha R Radwan, Salma M Abdel Fattah
Doxorubicin (DOX) is a highly effective antineoplastic drug; however, the clinical use of DOX is limited by its dose dependent cardiotoxicity. This study was conducted to evaluate the cardioprotective effect of sea cucumber and valsartan against DOX-induced cardiotoxicity in rats. Also, the role of exposure to low dose γ radiation (LDR) on each of them was investigated, since LDR could suppress various reactive oxygen species-related diseases. Rats received DOX (2.5mg/kg, ip) in six equal injections over a period of 2weeks, sea cucumber (14...
March 31, 2017: Journal of Photochemistry and Photobiology. B, Biology
https://www.readbyqxmd.com/read/28393220/metformin-increases-sensitivity-of-osteosarcoma-stem-cells-to-cisplatin-by-inhibiting-expression-of-pkm2
#13
Depeng Shang, Ju Wu, Lianyi Guo, Yanju Xu, Lezi Liu, Jianmin Lu
Multiple drug resistance is reported to be a major obstacle in treatment of osteosarcoma (OS). Research has demonstrated that small subsets of cells called cancer stem cells (CSCs) are responsible for multiple drug resistance. CSCs are potential targets for reversing chemoresistance. In the present study, we compared cisplatin sensitivity between OS stem cells and OS non-stem cells. We confirmed that OS stem cells showed significant cisplatin-resistance compared with the OS non-CSCs. Mechanically, we proved that overexpression of the pyruvate kinase isoenzyme M2 (PKM2) was responsible for the resistance to cisplatin in OS stem cells...
May 2017: International Journal of Oncology
https://www.readbyqxmd.com/read/28393186/a-novel-5-fluorouracil-resistant-human-esophageal-squamous-cell-carcinoma-cell-line-eca-109-5-fu-with-significant-drug-resistance-related-characteristics
#14
Chi Zhang, Qunfeng Ma, Yinan Shi, Xue Li, Ming Wang, Junfeng Wang, Jianlin Ge, Zhinan Chen, Ziling Wang, Hong Jiang
5-Fluorouracil (5-FU) is used for the clinical treatment of esophageal squamous cell carcinomas (ESCCs), yet it also induces chemoresistant cancer cells during treatment, which leads to the failure of the therapy. To further explore the resistance mechanism of 5-FU in ESCC, we established the 5-FU-resistant ESCC cell line Eca-109/5-FU, which was prepared by the stepwise exposure to increasing 5-FU concentrations. MTT assay and nude mouse xenograft models were used to test the drug resistance and proliferation of Eca-109 and Eca-109/5-FU cells in vitro and in vivo...
March 31, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28391183/artemisinin-protects-pc12-cells-against-%C3%AE-amyloid-induced-apoptosis-through-activation-of-the-erk1-2-signaling-pathway
#15
Zhiwen Zeng, Jinying Xu, Wenhua Zheng
Accumulating evidence displays that an abnormal deposition of amyloid beta-peptide (Aβ) is the primary cause of the pathogenesis of Alzheimer's disease (AD). And therefore the elimination of Aβ is regarded as an important strategy for AD treatment. The discovery of drug candidates using culture neuronal cells against Aβ peptide toxicity is believed to be an effective approach to develop drug for the treatment of AD patients. We have previously showed that artemisinin, a FDA-approved anti-malaria drug, has neuroprotective effects recently...
April 4, 2017: Redox Biology
https://www.readbyqxmd.com/read/28390723/manipulation-of-reproductive-seasonality-using-melatonin-implantation-in-anglo-nubian-does-treated-with-controlled-internal-drug-release-and-equine-chorionic-gonadotropin-during-the-nonbreeding-season
#16
M Y El-Mokadem, A N M Nour El-Din, T A Ramadan, A M A Rashad, T A Taha, M A Samak
The objective of this study was to compare the efficiency of hormonal treatments on ovarian activity and reproductive performance in anestrous Anglo-Nubian does during the nonbreeding season (February to May). A total of 48 multiparous does were divided into 2 groups (24 lactating does and 24 dry does). In each group, animals were allocated randomly into 2 equal subgroups (12 does each). In the first subgroup, does received a single 18-mg melatonin implant for 42 d followed by a controlled internal drug release (CIDR) device for 19 d in conjunction with 500 IU of equine chorionic gonadotropin (eCG) i...
April 5, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28390565/fertility-pregnancy-and-lactation-in-rheumatoid-arthritis
#17
REVIEW
Pascal H P de Jong, Radboud J E M Dolhain
Fertility is impaired in women with rheumatoid arthritis (RA), whereas less is known about male fertility problems. Pregnancy outcome in patients with RA is slightly less favorable compared with the general population, especially in patients with active disease. Disease activity usually improves during pregnancy, but less than previously thought. Although several antirheumatic drugs are contraindicated in pregnancy, more treatment options are available. There is evidence on the safety of TNF inhibitors in pregnancy...
May 2017: Rheumatic Diseases Clinics of North America
https://www.readbyqxmd.com/read/28387439/oncophosphosignaling-favors-a-glycolytic-phenotype-in-human-drug-resistant-leukemia
#18
Alessandra V S Faria, Thaís F Tornatore, Renato Milani, Karla C S Queiroz, Igor H Sampaio, Emanuella M B Fonseca, Karin J P Rocha-Brito, Tamira Oliveira Santos, Leonardo R Silveira, Maikel P Peppelenbosch, Carmen Veríssima Ferreira-Halder
In chemoresistant leukemia cells (Lucena-1), the low molecular weight protein tyrosine phosphatase (LMWPTP) is about 20-fold more active than in their susceptible counterpart (K562). We found this phosphatase ensures the activated statuses of Src and Bcr-Abl. Since phosphorylation and dephosphorylation of proteins represent a key post-translational regulation of several enzymes, we also explored the kinome. We hereby show that LMWPTP superactivation, together with kinome reprogramming, cooperate towards glucose addiction...
April 7, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28386017/multinuclear-nmr-and-mri-reveal-an-early-metabolic-response-to-mtor-inhibition-in-sarcoma
#19
Valentina Di Gialleonardo, Hannah N Aldeborgh, Vesselin Miloushev, Kelly M Folkers, Kristin Granlund, William D Tap, Jason S Lewis, Wolfgang A Weber, Kayvan Keshari
Biomarkers predicting rapalog responses in sarcomas where PI3K and mTOR are often hyperactivated could improve the suitable recruitment of responsive patients to clinical trials. PI3K/mTOR pathway activation drives energy production by regulating anaerobic glycolysis in cancer cells, suggesting a route toward a monitoring strategy. In this study, we took a multi-modality approach to evaluate the phenotypic effects and metabolic changes which occur with inhibition of the PI3K/mTOR pathway. Its central role in regulating glycolysis in human sarcomas was evaluated by short- and long-term rapamycin treatment in sarcoma cell lines...
April 6, 2017: Cancer Research
https://www.readbyqxmd.com/read/28384101/novel-therapeutic-approaches-of-natural-oil-from-black-seeds-and-its-underlying-mechanisms-against-kidney-dysfunctions-in-haloperidol-induced-male-rats
#20
Jacob K Akintunde, Opeyemi K Abubakar
BACKGROUND: Antipsychotic drugs could be nephrotoxic in schizophrenia patients. METHODS: The present study investigated the protective effect of oil from black seed on kidney dysfunctions using several biological approaches in adult rats. The animals were divided into six groups (n=10): normal control rats; haloperidol (HAL)-induced rats: induced rats were pre-, co- and post-treated with black seed oil (BSO), respectively, and the last group was treated with the oil only...
April 6, 2017: Drug Metabolism and Personalized Therapy
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