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https://www.readbyqxmd.com/read/29144718/the-emerging-role-of-gammacore%C3%A2-in-the-management-of-cluster-headache-expert-panel-recommendations
#1
Stephen D Silberstein, Anne H Calhoun, Christina Treppendahl, David W Dodick, Alan M Rapoport, Avinash Mamidi, Peter Vargas, Thomas H Ebert, Stewart J Tepper
A panel of 9 experts, including neurologists, other headache specialists, and medical and pharmacy directors, from 4 health plans (1 integrated delivery network and 3 plans with commercial, Medicare, and Medicaid lines of business), convened to discuss cluster headache (CH). Topics covered included the current treatment landscape, treatment challenges, economic impact of disease, and gaps in care for patients with CH. One major challenge in the management of CH is that it is underrecognized and frequently misdiagnosed, leading to delays in and suboptimal treatment for patients who suffer from this painful and disabling condition...
November 2017: American Journal of Managed Care
https://www.readbyqxmd.com/read/29144717/review-of-non-invasive-vagus-nerve-stimulation-gammacore-efficacy-safety-potential-impact-on-comorbidities-and-economic-burden-for-episodic-and-chronic-cluster-headache
#2
Mkaya Mwamburi, Eric J Liebler, Andrew T Tenaglia
The FDA has cleared gammaCore (non-invasive vagus nerve stimulator [nVNS]) for the treatment of episodic cluster headache (eCH). With the exception of subcutaneous sumatriptan, all other treatments are used off label and have many limitations. The FDA approval process for devices differs from that of drugs. We performed a review of the literature to evaluate new evidence on various aspects of gammaCore treatment and impact. The ACute Treatment of Cluster Headache Studies (ACT1 and ACT2), both double-blind sham-controlled randomized trials, did not meet the primary endpoints of the trials but each demonstrated significant superiority of gammaCore among patients with eCH...
November 2017: American Journal of Managed Care
https://www.readbyqxmd.com/read/29140578/alleviation-of-cadmium-induced-oxidative-stress-by-trehalose-via-inhibiting-the-nrf2-keap1-signaling-pathway-in-primary-rat-proximal-tubular-cells
#3
Xin-Yu Wang, Zhen-Yong Wang, Yi-Song Zhu, Si-Ming Zhu, Rui-Feng Fan, Lin Wang
Nuclear factor erythroid 2-related factor 2 (Nrf2) is a transcription factor that regulates a cluster of oxidative stress-inducible genes in cells. Here, we aimed to investigate whether trehalose (Tre) protects primary rat proximal tubular (rPT) cells against cadmium (Cd)-induced oxidative stress via Nrf2 antioxidant pathway. Data showed that Tre treatment inhibited Nrf2 nuclear translocation and restored the decline in Kelch-like ECH-associated protein 1 (Keap1) protein level in Cd-exposed rPT cells. Moreover, Cd-activated Nrf2 target genes, including phase II detoxifying enzymes, that is, NAD(P)H quinone oxidoreductase 1 and heme oxygenase-1, direct antioxidant proteins, that is, glutathione peroxidase, superoxide dismutase, catalase, and glutathione biosynthesis-related proteins, that is, glutamatecysteine ligase catalytic subunit, glutamate cysteine ligase modifier subunit, and glutathione reductase, were all downregulated by co-treatment with Tre...
November 15, 2017: Journal of Biochemical and Molecular Toxicology
https://www.readbyqxmd.com/read/29136249/natural-polyphenol-chlorogenic-acid-protects-against-acetaminophen-induced-hepatotoxicity-by-activating-erk-nrf2-antioxidative-pathway
#4
Mengjuan Wei, Zhiyong Zheng, Liang Shi, Yao Jin, Lili Ji
Hepatotoxicity due to acetaminophen (APAP) overdose is a leading cause of drug-induced acute liver failure in clinic. Chlorogenic acid (CGA), a dietary polyphenol, was reported to prevent APAP-induced liver injury in our previous studies. This study aims to investigate the protection provided by CGA against APAP-induced hepatotoxicity via focusing on nuclear factor erythroid 2-related factor 2 (Nrf2) and extracellular regulated protein kinases (ERK)1/2. CGA prevented APAP-induced oxidative liver injury and enhanced Nrf2 activation in mice and in hepatocytes in vitro...
November 10, 2017: Toxicological Sciences: An Official Journal of the Society of Toxicology
https://www.readbyqxmd.com/read/29135079/cigarette-smoke-extract-and-isoprene-resulted-in-the-induction-of-apoptosis-and-autophagy-in-human-placenta-choriocarcinoma-jeg-3-cells
#5
Hae-Miru Lee, Kyung-Chul Choi
In this study, the effects of cigarette smoke (CS) on the induction of apoptosis via reactive oxygen species (ROS) production and endoplasmic reticulum stress (ER stress) of JEG-3 human choriocarcinoma cells were examined to confirm the relationship between CS and placenta development. Upon TUNEL assay, CS extract (3R4F; 0.3 and 2.1 μM) increased JEG-3 apoptosis. Western blot assay revealed that the protein expressions of p53, Bax, and CCAAT-enhancer-binding protein homologous protein (CHOP) increased, while the levels of Bcl-2 were reduced following CS extract treatment...
November 14, 2017: Environmental Toxicology
https://www.readbyqxmd.com/read/29124088/considerations-and-code-for-partial-volume-correcting-18-f-av-1451-tau-pet-data
#6
Suzanne L Baker, Anne Maass, William J Jagust
[(18)F]-AV-1451 is a leading tracer used with positron emission tomography (PET) to quantify tau pathology. However, [(18)F]-AV-1451 shows "off target" or non-specific binding, which we define as binding of the tracer in unexpected areas unlikely to harbor aggregated tau based on autopsy literature [1]. Along with caudate, putamen, pallidum and thalamus non-specific binding [2], [3], we have found binding in the superior portion of the cerebellar gray matter, leading us to use inferior cerebellar gray as the reference region...
December 2017: Data in Brief
https://www.readbyqxmd.com/read/29118094/fragment-based-drug-discovery-and-its-application-to-challenging-drug-targets
#7
REVIEW
Amanda J Price, Steven Howard, Benjamin D Cons
Fragment-based drug discovery (FBDD) is a technique for identifying low molecular weight chemical starting points for drug discovery. Since its inception 20 years ago, FBDD has grown in popularity to the point where it is now an established technique in industry and academia. The approach involves the biophysical screening of proteins against collections of low molecular weight compounds (fragments). Although fragments bind to proteins with relatively low affinity, they form efficient, high quality binding interactions with the protein architecture as they have to overcome a significant entropy barrier to bind...
November 8, 2017: Essays in Biochemistry
https://www.readbyqxmd.com/read/29115889/circulating-fetal-and-total-cell-free-dna-and-shla-g-in-black-south-african-women-with-gestational-hypertension-and-pre-eclampsia
#8
Simeon Eche, Irene Mackraj, Jagidesa Moodley
OBJECTIVE: Quantification of circulating fetal and total cell-free DNA (cfDNA) and soluble human leucocyte antigen (HLAG) in gestational hypertension and pre-eclampsia. METHODS: Serum cfDNA were quantified in controls, pre-eclamptics, and gestational hypertensive patients using real-time qPCR. Soluble HLAG was measured by enzyme-linked immune-sorbent assay. RESULTS: Serum fetal and total cfDNA levels were higher in pre-eclampsia compared with the controls and gestational hypertensives (p < 0...
November 2017: Hypertension in Pregnancy
https://www.readbyqxmd.com/read/29104249/carrageenans-sulfated-polysaccharides-from-red-seaweeds-as-matrices-for-the-inclusion-of-echinochrome
#9
Irina M Yermak, Natalia P Mischchenko, Viktoria N Davydova, Valery P Glazunov, Daria V Tarbeeva, Anna O Kravchenko, Evgeniya A Pimenova, Irina V Sorokina
The possibility of using different types of carrageenans (CRG) as matrixes for incorporating of echinochrome A (Ech) was investigated. Ech interacts with carrageenans and is incorporated into the macromolecular structure of the polysaccharide. The inclusion of Ech in carrageenan matrices decreased its oxidative degradation and improved its solubility. The changing in the charge and morphology of CRGs during binding with Ech was observed. The rate of Ech release from CRG matrices depended on the structure of the used polysaccharide and the presence of specific ions...
November 1, 2017: Marine Drugs
https://www.readbyqxmd.com/read/29094331/pterostilbene-protects-against-uraemia-serum-induced-endothelial-cell-damage-via-activation-of-keap1-nrf2-ho-1-signaling
#10
Zhi-Wei Chen, Hai-Feng Miu, Hui-Ping Wang, Zhi-Niu Wu, Wen-Juan Wang, Yu-Jing Ling, Xiao-Hui Xu, Hai-Jian Sun, Xia Jiang
Chronic kidney disease causes uremia-related endothelial cell dysfunction associated with high risk for cardiovascular diseases. The vascular endothelium is permanently exposed to uraemic toxins including indoxyl sulfate, which provokes endothelial damage in subjects with end-stage renal disease. Pterostilbene (PT) is identified to be homologous derivative of resveratrol and exerts antioxidant and anti-inflammatory actions. However, the effects of PT on uraemic serum-induced endothelial cell damage have not been elucidated...
November 1, 2017: International Urology and Nephrology
https://www.readbyqxmd.com/read/29069379/reaction-engineering-analysis-of-the-autotrophic-energy-metabolism-of-clostridium-aceticum
#11
Alexander Mayer, Dirk Weuster-Botz
Acetogenesis with CO 2 :H 2 or CO via the reductive acetyl-CoA pathway does not provide any net ATP formation in homoacetogenic bacteria. Autotrophic energy conservation is coupled to the generation of chemiosmotic H + or Na + gradients across the cytoplasm membrane using either a ferredoxin:NAD + oxidoreductase (Rnf), a ferredoxin:H + oxidoreductase (Ech) or substrate-level phosphorylation via cytochromes. The first isolated acetogenic bacterium Clostridium aceticum shows both cytochromes and Rnf-complex putting it into an outstanding position...
October 23, 2017: FEMS Microbiology Letters
https://www.readbyqxmd.com/read/29065949/effects-of-spermine-on-the-antioxidant-status-and-gene-expression-of-antioxidant-related-signaling-molecules-in-the-liver-and-longissimus-dorsi-of-piglets
#12
T Fang, J Zheng, W Cao, G Jia, H Zhao, X Chen, J Cai, J Wang, G Liu
Previous studies showed that spermine could protect the organism from oxidative damage in vivo. However, in vivo information on the antioxidant-related underlying molecular mechanism of spermine is limited. In this experiment, we further evaluated the effects of spermine supplementation and extended spermine administration on the antioxidant status and antioxidant-related signaling molecules gene expression in the liver and longissimus dorsi of piglets. A total of 80 piglets were randomly distributed to two groups, that is, those with adequate nutrient intake administrated with spermine (0...
October 25, 2017: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/29064158/the-natural-compound-2-3-5-4-tetrahydroxystilbene-2-o-%C3%AE-d-glucoside-protects-against-adriamycin-induced-nephropathy-through-activating-the-nrf2-keap1-antioxidant-pathway
#13
En-Yuan Lin, Uyanga Bayarsengee, Ching-Chiung Wang, Yung-Hsiao Chiang, Chao-Wen Cheng
2,3,5,4'-Tetrahydroxystilbene-2-O-β-d-glucoside (THSG) is an active compound extracted from Polygonum multiflorum Thunb. This herb and radix Polygoni Multiflori preparata have been used to treat arteriosclerosis, hyperlipidemia, hypercholesterolemia, and diabetes for thousands of years. This study aimed to investigate the protective effects of THSG in an Adriamycin (AD)-induced focal segmental glomerulosclerosis (FSGS) mouse model and the underlying mechanisms in an in vitro system. Mice were treated with THSG (2...
October 24, 2017: Environmental Toxicology
https://www.readbyqxmd.com/read/29061892/the-origin-of-heredity-in-protocells
#14
Timothy West, Victor Sojo, Andrew Pomiankowski, Nick Lane
Here we develop a computational model that examines one of the first major biological innovations-the origin of heredity in simple protocells. The model assumes that the earliest protocells were autotrophic, producing organic matter from CO2 and H2 Carbon fixation was facilitated by geologically sustained proton gradients across fatty acid membranes, via iron-sulfur nanocrystals lodged within the membranes. Thermodynamic models suggest that organics formed this way should include amino acids and fatty acids...
December 5, 2017: Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences
https://www.readbyqxmd.com/read/29057383/regulation-of-keap1-nrf2-signaling-the-role-of-epigenetics
#15
David Cheng, Renyi Wu, Yue Guo, Ah-Ng Tony Kong
Kelch-like ECH-associated protein 1 (Keap1)-nuclear factor erythroid 2-related factor 2 (NFE2L2/Nrf2) signaling pathway is a pivotal player in the antioxidant response to oxidative and electrophilic stress and can play a role in many human diseases. Activation or inhibition of Nrf2 has been an approach to treating many diseases such as cancer and regulation of this pathway has been thoroughly studied. Recently, epigenetics has emerged as another layer for regulating Keap1-Nrf2. Epigenetics modification is defined as heritable changes to gene expression without changing DNA sequence and various modifications have been found to be involved in regulating Keap1-Nrf2...
December 2016: Current Opinion in Toxicology
https://www.readbyqxmd.com/read/29050246/nrf2-regulated-metabolic-gene-signature-as-a-prognostic-biomarker-in-non-small-cell-lung-cancer
#16
Akhileshwar Namani, Qin Qin Cui, Yihe Wu, Hongyan Wang, Xiu Jun Wang, Xiuwen Tang
Mutations in Kelch-like ECH-associated protein 1 (KEAP1) cause the aberrant activation of nuclear factor erythroid-derived 2-like 2 (NRF2), which leads to oncogenesis and drug resistance in lung cancer cells. Our study was designed to identify the genes involved in lung cancer progression targeted by NRF2. A series of microarray experiments in normal and cancer cells, as well as in animal models, have revealed regulatory genes downstream of NRF2 that are involved in wide variety of pathways. Specifically, we carried out individual and combinatorial microarray analysis of KEAP1 overexpression and NRF2 siRNA-knockdown in a KEAP1 mutant-A549 non-small cell lung cancer (NSCLC) cell line...
September 19, 2017: Oncotarget
https://www.readbyqxmd.com/read/29043001/effect-of-pingchuan-guben-decoction-on-patients-with-chronic-obstructive-pulmonary-disease-results-from-a-randomized-comparative-effectiveness-research-trial
#17
Cheng-Liang Qian, Rong Fan
Chronic obstructive pulmonary disease (COPD) is known to be a systemic low-grade ongoing inflammation exerting major health and economic burden worldwide. Complementary and alternative medicines, such as Traditional Chinese Medicine, are widely used for the treatment of patients with COPD. The present study was designed to investigate the efficacy of Pingchuan Guben decoction on patients with COPD through a double-blinded, open-labeled, randomized controlled trial. A total of 86 patients were randomly assigned to two groups, with 43 patients in the intervention group and 43 cases in the control group...
October 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29033543/effect-of-echinacoside-on-kidney-fibrosis-by-inhibition-of-tgf-%C3%AE-1-smads-signaling-pathway-in-the-db-db-mice-model-of-diabetic-nephropathy
#18
Fengjuan Tang, Yarong Hao, Xue Zhang, Jian Qin
Kidney fibrosis and renal tubular epithelial-to-mesenchymal transition (EMT) are the main pathological changes of diabetic nephropathy (DN), which eventually leads to end-stage renal disease. Previous studies have suggested that echinacoside (ECH) is antifibrotic in the liver. However, the effect of ECH on kidney fibrosis in DN and its mechanisms are unknown. This study was performed to explore the effect of ECH on kidney fibrosis and also the molecular mechanisms of ECH in a db/db mice model of DN. Our results showed that, relative to db/db mice, the mice in the ECH group had an improved general state and reduced blood glucose and 24-hour urinary protein levels...
2017: Drug Design, Development and Therapy
https://www.readbyqxmd.com/read/29029269/an-overlooked-paleo-tetraploidization-in-cucurbitaceae
#19
Jinpeng Wang, Pengchuan Sun, Yuxian Li, Yinzhe Liu, Nanshan Yang, Jigao Yu, Xuelian Ma, Sangrong Sun, Ruiyan Xia, Xiaojian Liu, Dongcen Ge, Sainan Luo, Yinmeng Liu, Youting Kong, Xiaobo Cui, Tianyu Lei, Li Wang, Zhenyi Wang, Weina Ge, Lan Zhang, Xiaoming Song, Min Yuan, Di Guo, Dianchuan Jin, Wei Chen, Yuxin Pan, Tao Liu, Guixian Yang, Yue Xiao, Jinshuai Sun, Cong Zhang, Zhibo Li, Haiqing Xu, Xueqian Duan, Shaoqi Shen, Zhonghua Zhang, Sanwen Huang, Xiyin Wang
Cucurbitaceae plants are of considerable biological and economic importance, and genomes of cucumber, watermelon, and melon have been sequenced. However, a comparative genomics exploration of their genome structures and evolution has not been available. Here, we aimed at performing a hierarchical inference of genomic homology resulted from recursive paleo-polyploidizations. Unexpectedly, we found that, shortly after a core-eudicot-common hexaploidy (ECH), a cucurbit-common tetraploidization (CCT) occurred, overlooked by previous reports...
September 28, 2017: Molecular Biology and Evolution
https://www.readbyqxmd.com/read/28986302/activation-of-nrf2-might-reduce-oxidative-stress-in-human-granulosa-cells
#20
Nana Akino, Osamu Wada-Hiraike, Hiromi Terao, Harunori Honjoh, Wataru Isono, Houju Fu, Mana Hirano, Yuichiro Miyamoto, Michihiro Tanikawa, Miyuki Harada, Tetsuya Hirata, Yasushi Hirota, Kaori Koga, Katsutoshi Oda, Kei Kawana, Tomoyuki Fujii, Yutaka Osuga
Nuclear factor-E2-related factor 2 (Nrf2)/Kelch-like ECH-associated protein 1 (Keap1)-antioxidant response element (ARE) signaling pathway is one of the most important defense mechanisms against oxidative stress (OS). It is well documented that equilibration status of OS plays fundamental roles in human reproductive medicine, and the physiological role of Nrf2 in ovarian granulosa cells (GCs) has not been determined yet. Herein we aimed to study the function of Nrf2 in GCs. Human ovarian tissues were subjected to immunohistochemistry to localize Nrf2 and Keap1 and we detected the expression of Nrf2 and Keap1 in the human GCs...
October 4, 2017: Molecular and Cellular Endocrinology
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