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https://www.readbyqxmd.com/read/28651233/terminalia-bellirica-gaertn-roxb-fruit-mitigates-ccl4-induced-oxidative-stress-and-hepatotoxicity-in-rats
#1
Jayesh Kuriakose, Helen Lal Raisa, Vysakh A, Binil Eldhose, Latha M S
Terminalia bellirica (Gaertn.) Roxb. is a medicinal plant used for the treatment of various ailments in the traditional system of medicine like Ayurveda where it has been prescribed as a rejuvenator and general health tonic. The fruit of the plant is one of the components of the age old ayurvedic formulation-'Triphala'. The present study evaluates curative effect of aqueous acetone extract of Terminalia bellirica fruits (AATB) against CCl4 induced oxidative stress and liver damage in an animal model. Two doses of the fruit extract (200mg/kg body weight and 400mg/kg body weight) were investigated for the beneficial effects...
June 23, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28651231/evaluation-of-in-vitro-anticancer-activity-of-1-8-cineole-containing-n-hexane-extract-of-callistemon-citrinus-curtis-skeels-plant-and-its-apoptotic-potential
#2
Sowndarya Sampath, Vidhya Veeramani, Gopal Shankar Krishnakumar, Udhayakumar Sivalingam, Suguna Lakshmi Madurai, Rose Chellan
Plants are the source of a variety of secondary metabolites, which are often used in the anticancer activity. Discovering new anticancer drug from herbal source is more important in both biological and pharmacological activities. Hence, the objective of this study is to identify the anticancer agent in Callistemon citrinus (Curtis) Skeels (CC) for the treatment of cancer. Very recently we have reported an increased antioxidant activity in the ethanolic and methanolic extracts (EE and ME) of CC but significantly reduced activity (rather increased cytotoxicity), in the n-hexane extract (HE)...
June 23, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28651105/heterogeneous-epigenetic-regulation-of-hace1-in-burkitt-lymphoma-derived-cells
#3
Abdelilah Bouzelfen, Hafid Kora, Marion Alcantara, Philippe Bertrand, Jean-Baptiste Latouche, Fabrice Jardin
We examined the consequences of 3-deazaneplanocin A (DZNep) on HACE1 expression in human Burkitt- Lymphoma-derived cells to investigate fundamental molecular mechanisms that control its expression. We treated the human Burkitt- Lymphoma-derived cells lines Ramos and Raji with DZNep and examined HACE1 mRNA expression by RT-PCR. We also studied the effect of DZNep on the methylation of lysine 9 and 27 of histone 3 (H3K27me3 and H3K9me2) associated with the CpG88 and CpG177 islands of the HACE1 promoters by chromatin immunoprecipitation and quantitative PCR...
June 16, 2017: Leukemia Research
https://www.readbyqxmd.com/read/28650976/effect-of-praziquantel-on-the-differential-expression-of-mouse-hepatic-genes-and-parasite-atp-binding-cassette-transporter-gene-family-members-during-schistosoma-mansoni-infection
#4
Melissa C Sanchez, Katina V Krasnec, Amalia S Parra, Christian von Cabanlong, Geoffrey N Gobert, Boris Umylny, Pauline M Cupit, Charles Cunningham
Schistosomiasis is a chronic parasitic disease caused by sexually dimorphic blood flukes of the genus Schistosoma. Praziquantel (PZQ) is the only drug widely available to treat the disease but does not kill juvenile parasites. Here we report the use of next generation sequencing to study the transcriptional effect of PZQ on murine hepatic inflammatory, immune and fibrotic responses to Schistosoma mansoni worms and eggs. An initial T helper cell 1 (Th1) response is induced against schistosomes in mice treated with drug vehicle (Vh) around the time egg laying begins, followed by a T helper cell 2 (Th2) response and the induction of genes whose action leads to granuloma formation and fibrosis...
June 26, 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28650631/effect-of-the-biphenyl-neolignan-honokiol-on-a%C3%AE-42-induced-toxicity-in-caenorhabditis-elegans-a%C3%AE-42-fibrillation-cholinesterase-activity-dpph-radicals-and-iron-ii-chelation
#5
Srinivas Kantham, Stephen Chan, Gawain McColl, Jared Miles, Suresh Kumar Veliyath, Girdhar Singh Deora, Satish N Dighe, Samira Khabbazi, Marie-Odile Parat, Benjamin P Ross
The biphenyl neolignan honokiol is a neuroprotectant which has been proposed as a treatment for central nervous system disorders such as Alzheimer's disease (AD). The death of cholinergic neurons in AD is attributed to multiple factors, including: accumulation and fibrillation of amyloid beta peptide (Aβ) within the brain; metal ion toxicity; and oxidative stress. In this study, we used a transgenic Caenorhabditis elegans model expressing full length Aβ42 as a convenient in vivo system for examining the effect of honokiol against Aβ-induced toxicity...
June 26, 2017: ACS Chemical Neuroscience
https://www.readbyqxmd.com/read/28650490/hypoxia-induced-tumor-cell-resistance-is-overcome-by-synergistic-gapdh-sirna-and-chemotherapy-co-delivered-by-long-circulating-and-cationic-interior-liposomes
#6
Jibin Guan, Jin Sun, Feilong Sun, Bo Lou, Dong Zhang, Vida Mashayekhi, Negar Sadeghi, Gert Storm, Enrico Mastrobattista, Zhonggui He
Chemotherapeutic drug resistance of tumor cells under hypoxic conditions is caused by the inhibition of apoptosis by autophagy and drug efflux via adenosine triphosphate (ATP)-dependent transporter activation, among other factors. Here, we demonstrate that disrupting glyceraldehyde-3-phosphate dehydrogenase (GAPDH) expression can reduce the autophagy and ATP levels in tumor cells. To test whether GAPDH knockdown is sufficient to overcome drug resistance, a nanocarrier (asymmetry-membrane liposome) was designed to encapsulate GAPDH-siRNA with a low dose of paclitaxel (PTX)...
June 26, 2017: Nanoscale
https://www.readbyqxmd.com/read/28650422/the-effects-of-valsartan-on-renal-klotho-expression-and-oxidative-stress-in-alleviation-of-cyclosporine-nephrotoxicity
#7
Sina Raeisi, Amir Ghorbanihaghjo, Hassan Argani, Siavoush Dastmalchi, Babollah Ghasemi, Teimour Ghazizadeh, Nadereh Rashtchizadeh, Mahboob Nemati, Mehran Mesgari Abbasi, Nasrin Bargahi, Hossein Samadi Kafil, Amir Mansour Vatankhah
BACKGROUND: Nephrotoxicity side effect of the immunosuppressive drug, cyclosporine A (CsA), can be a major issue in transplantation medicine. Cyclosporine A-induced nephrotoxicity is multifactorial but oxidative stress has a critical role in this process. It has been demonstrated that Valsartan (Val) as an angiotensin receptor blocker has renoprotective effects, but the molecular mechanisms responsible for the renal protection, independent from its blood pressure lowering effect, have not yet been fully understood...
June 23, 2017: Transplantation
https://www.readbyqxmd.com/read/28650379/tenofovir-induced-toxicity-in-renal-proximal-tubular-epithelial-cells-involvement-of-mitochondria
#8
Lara Milián, José E Peris, Patricia Gandía, Isabel Andújar, Luis Pallardó, Jose L Górriz, Ana Blas-García
OBJECTIVE: In vivo studies suggest that mitochondria is involved in tenofovir-induced renal toxicity, but the underlying mechanisms are still unclear. The aim of the present study was to assess the effects of tenofovir and its prodrug, tenofovir disoproxil fumarate, on mitochondrial function and cell survival/viability in a renal proximal tubular cell line. DESIGN AND METHODS: We evaluated parameters of cellular proliferation/survival (cell count, cell cycle, viability) and mitochondrial function (oxygen consumption, mitochondrial membrane potential, reactive oxygen species production) in NRK52E cells...
June 23, 2017: AIDS
https://www.readbyqxmd.com/read/28650104/alzheimer-s-disease-and-metabolic-syndrome-a-link-from-oxidative-stress-and-inflammation-to-neurodegeneration
#9
REVIEW
Eduardo Rojas-Gutierrez, Guadalupe Muñoz-Arenas, Samuel Treviño, Blanca Espinosa, Raúl Chavez, Karla Rojas, Gonzalo Flores, Alfonso Díaz, Jorge Guevara
Alzheimer's disease (AD) is the most common cause of dementia and one of the most important causes of morbidity and mortality among the aging population. AD diagnosis is made post-mortem, and the two pathologic hallmarks, particularly evident in the end stages of the illness, are amyloid plaques and neurofibrillary tangles (NFT). Currently, there is no curative treatment for AD. Additionally, there is a strong relation between oxidative stress, metabolic syndrome (MetS) and AD. The high levels of circulating lipids and glucose imbalances amplify lipid peroxidation that gradually diminishes the antioxidant systems, causing high levels of oxidative metabolism that affects cell structure, leading to neuronal damage...
June 26, 2017: Synapse
https://www.readbyqxmd.com/read/28650045/targeted-delivery-of-geranylgeranylacetone-to-mitochondria-by-triphenylphosphonium-modified-nanoparticles-a-promising-strategy-to-prevent-aminoglycoside-induced-hearing-loss
#10
Zhenjie Wang, Xiao Kuang, Jia Shi, Weiling Guo, Hongzhuo Liu
Prevention of hair cell death is an important target for the prevention of hearing loss. Here, we report the engineering of biodegradable poly(lactic-co-glycolic acid) nanoparticles (PLGA NPs) decorated with triphenylphosphonium (TPP) cations as a robust mitochondrial delivery platform, with the aim of preserving mitochondrial integrity and shutting off the initiation of cell death. Geranylgeranylacetone (GGA), a 70 kDa heat shock protein (HSP70) inducer, was used as a therapeutic molecule to attenuate gentamicin (Gen) induced hearing loss...
June 26, 2017: Biomaterials Science
https://www.readbyqxmd.com/read/28650029/nanoparticle-encapsulated-baicalein-markedly-modulates-pro-inflammatory-response-in-gingival-epithelial-cells
#11
Xuan Li, Wei Luo, Tsz Wing Ng, Ping Chung Leung, Chengfei Zhang, Ken Cham-Fai Leung, Lijian Jin
Severe gum disease (periodontitis), which is one of the major global oral diseases, results from microbe-host dysbiosis and dysregulated immuno-inflammatory responses. It seriously affects oral health and general wellbeing with significant socio-economic implications. It has been well documented that natural flavonoids such as baicalin (BA) and baicalein (BE) possess potent anti-inflammatory effects. However, their intrinsic poor solubility and low bioavailability severely limit their biomedical applications...
June 26, 2017: Nanoscale
https://www.readbyqxmd.com/read/28650023/ligand-induced-conformational-preorganization-of-loops-of-c-myc-g-quadruplex-dna-and-its-implications-in-structure-specific-drug-design
#12
S Harikrishna, Saikiran Kotaru, P I Pradeepkumar
Stabilization of a G-quadruplex (G4) DNA structure in the proto-oncogene c-MYC using small molecule ligands has emerged as an attractive strategy for the development of anticancer therapeutics. To understand the subtle structural changes in the G4 structure upon ligand binding, molecular dynamics (MD) simulations of c-MYC G4 DNA were carried out in a complex with six different potent ligands: 3AQN, 6AQN, 3APN, 360A, Nap-Et, and Nap-Pr. The results show that the ligands 3AQN, 6AQN, 3APN, and 360A stabilize the G4 structure by making stacking interactions with the top quartet...
June 26, 2017: Molecular BioSystems
https://www.readbyqxmd.com/read/28649888/drug-induced-large-vessel-vasculitis-with-carotid-arterial-ring-sign
#13
S Fukui, N Iwamoto, A Kawakami
No abstract text is available yet for this article.
June 26, 2017: Scandinavian Journal of Rheumatology
https://www.readbyqxmd.com/read/28649882/neratinib-for-the-treatment-of-her2-positive-early-stage-breast-cancer
#14
Isabel Echavarria, Sara López-Tarruella, Iván Márquez-Rodas, Yolanda Jerez, Miguel Martin
Despite the advances in the treatment of HER2-positive breast cancer, resistance to actual chemotherapeutic regimens eventually occurs. Neratinib, an orally available pan-inhibitor of the ERBB family, represents an interesting new option for early-stage HER2-positive breast cancer. Areas covered: In this article, the development of neratinib, with a special focus on its potential value in the treatment of early-stage HER2-positive breast cancer, has been reviewed. For this purpose, a literature search was conducted, including preclinical studies, early-phase trials in advanced cancer with neratinib in monotherapy and in combination, and phase II and large phase III trials in the early setting...
June 26, 2017: Expert Review of Anticancer Therapy
https://www.readbyqxmd.com/read/28649876/myasthenia-gravis-induced-by-nivolumab-in-patients-with-non-small-cell-lung-cancer-a-case-report-and-literature-review
#15
Yoshikazu Hasegawa, Shigeru Kawai, Takayo Ota, Hiroshi Tsukuda, Masahiro Fukuoka
A 76-year-old woman who was diagnosed with non-small-cell lung cancer presented with left eyelid ptosis and grade 4 creatine phosphokinase elevation after the 2nd cycle of nivolumab monotherapy. Nivolumab has demonstrated promising efficacy in patients with non-small-cell lung cancer in several trials. Dyspnea and muscle weakness developed rapidly with an acute exacerbation. She underwent plasmapheresis and intravenous immune globulin followed by treatment with low-dose prednisolone. She had gradual symptoms improvement...
June 26, 2017: Immunotherapy
https://www.readbyqxmd.com/read/28649767/the-use-of-antioxidant-agents-for-chemotherapy-induced-peripheral-neuropathy-treatment-in-animal-models
#16
REVIEW
Larissa Feitosa Carvalho, Ana Maria Fantini Silva, Adriana Andrade Carvalho
Antineoplastic drugs such as Cisplatin, Oxaliplatin, Paclitaxel and Vincristin are widely used in the treatment for several both solid and blood tumours. However, the severity of peripheral neuropathy caused by these agents can affect the patient's quality of life. The major symptoms of Chemotherapy-Induced Peripheral Neuropathy (CIPN) involve: sensory loss, paresthesia, dysesthaesia, numbness, tingling, temperature sensitivity, allodynia and hyperalgesia, in a "stocking and glove" distribution. Why many different chemotherapeutic agents result in similar neuropathy profiles is unclear...
June 26, 2017: Clinical and Experimental Pharmacology & Physiology
https://www.readbyqxmd.com/read/28649658/niche-localized-tumor-cells-are-protected-from-her2-targeted-therapy-via-upregulation-of-an-anti-apoptotic-program-in-vivo
#17
Jason J Zoeller, Roderick T Bronson, Laura M Selfors, Gordon B Mills, Joan S Brugge
Several lines of evidence suggest that components of the tumor microenvironment, specifically basement membrane and extracellular matrix proteins, influence drug sensitivities. We previously reported differential drug sensitivity of tumor cells localized adjacent to laminin-rich extracellular matrix in three-dimensional tumor spheroid cultures. To evaluate whether differential intra-tumor responses to targeted therapy occur in vivo, we examined the sensitivity of human epidermal growth factor receptor 2-positive tumors to lapatinib using a previously described ductal carcinoma in situ-like model characterized by tumor cell confinement within ductal structures surrounded by an organized basement membrane...
2017: NPJ Breast Cancer
https://www.readbyqxmd.com/read/28649618/synergistic-effects-of-influenza-and-1-methyl-4-phenyl-1-2-3-6-tetrahydropyridine-mptp-can-be-eliminated-by-the-use-of-influenza-therapeutics-experimental-evidence-for-the-multi-hit-hypothesis
#18
Shankar Sadasivan, Bridgett Sharp, Stacey Schultz-Cherry, Richard Jay Smeyne
Central Nervous System inflammation has been implicated in neurodegenerative disorders including Parkinson's disease (Ransohoff, Science 353: 777-783, 2016; Kannarkat et al. J. Parkinsons Dis. 3: 493-514, 2013). Here, we examined if the H1N1 influenza virus (Studahl et al. Drugs 73: 131-158, 2013) could synergize with the parkinsonian toxin 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (Jackson-Lewis et al. in Mark LeDoux (ed) Movement Disorders: Genetics and Models: 287-306, Elsevier, 2015) to induce a greater microglial activation and loss of substantia nigra pars compacta dopaminergic neurons than either insult alone...
2017: NPJ Parkinson's Disease
https://www.readbyqxmd.com/read/28649495/non-hyperammonaemic-valproate-encephalopathy-after-20%C3%A2-years-of-treatment
#19
Elizabeth Caruana Galizia, Jeremy D Isaacs, Hannah R Cock
Sodium valproate is a commonly used antiseizure drug with broad indications for different seizuretypes and epilepsy syndromes. Well-recognised side effects include weight gain, tremor, dizziness, and unsteadiness. Non-hyperammonaemic parkinsonism, with or without cognitive impairment, is a rare adverse effect of sodium valproate. We present the case of a sixty year-old lady with a generalized seizure disorder, treated with phenytoin, valproate, lamotrigine and clonazepam. Following withdrawal of phenytoin she developed an akinetic-rigid syndrome, with ataxia and marked cognitive impairment...
2017: Epilepsy & Behavior Case Reports
https://www.readbyqxmd.com/read/28649481/cardio-oncology-cancer-therapy-related-cardiovascular-complications-in-a-molecular-targeted-era-new-concepts-and-perspectives
#20
REVIEW
David Hurtado-de-Mendoza, Arturo Loaiza-Bonilla, Paula A Bonilla-Reyes, Gabriel Tinoco, Rodrigo Alcorta
Cardio-oncology is a medical discipline that identifies, prevents, and treats the cardiovascular complications related to cancer therapy. Due to the remarkable proliferation of new cancer therapies causing cardiovascular complications, such as hypertension, heart failure, vascular complications, and cardiac arrhythmia, we provide an extensive, comprehensive revision of the most up-to-date scientific information available on the cardiovascular complications associated with the use of newer, novel chemotherapeutic agents, including their reported incidence, suggested pathophysiology, clinical manifestations, potential treatment, and prevention...
May 18, 2017: Curēus
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