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https://www.readbyqxmd.com/read/29241088/development-of-an-lc-ms-method-to-quantify-coproporphyrin-i-and-iii-as-endogenous-biomarkers-for-drug-transporter-mediated-drug-drug-interactions
#1
Emmanuel Njumbe Ediage, Lieve Dillen, Ann Vroman, Luc Diels, Annett Kunze, Jan Snoeys, Tom Verhaeghe
Coproporphyrins are proposed as endogenous biomarkers of hepatic Organic Anion Transporting Polypeptide (OATP)1B functional activity. In this study, a new sample extraction method based on a mixed-mode anion exchange sorbent (SPE clean-up using Oasis 30mg Max 96 well plates) was developed for absolute quantification of coproporphyrin I and III (CP-I and CP-III) in human plasma. Chromatographic separation was performed with an Ace Excel 2 C18 PFP, 3μm, 2.1×150mm, maintained at 60°C. A 10mM ammonium formate containing 0...
December 6, 2017: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/29239813/experimental-assessment-of-the-advanced-collapsed-cone-engine-for-scalp-brachytherapy-treatments
#2
Brie Cawston-Grant, Hali Morrison, Ron S Sloboda, Geetha Menon
PURPOSE: To experimentally assess the performance of the Advanced Collapsed-cone Engine (ACE) for 192Ir high-dose-rate brachytherapy treatment planning of nonmelanoma skin cancers of the scalp. METHODS AND MATERIALS: A layered slab phantom was designed to model the head (skin, skull, and brain) and surface treatment mold using tissue equivalent materials. Six variations of the phantom were created by varying skin thickness, skull thickness, and size of air gap between the mold and skin...
November 24, 2017: Brachytherapy
https://www.readbyqxmd.com/read/29238804/efficacy-of-high-sensitivity-troponin-t-in-identifying-very-low-risk-patients-with-possible-acute-coronary-syndrome
#3
W Frank Peacock, Brigette M Baumann, Deborah Bruton, Thomas E Davis, Beverly Handy, Christopher W Jones, Judd E Hollander, Alexander T Limkakeng, Abhi Mehrotra, Martin Than, Andre Ziegler, Carina Dinkel
Importance: Physicians need information on how to use the first available high-sensitivity troponin (hsTnT) assay in the United States to identify patients at very low risk for 30-day adverse cardiac events (ACE). Objective: To determine whether a negative hsTnT assay at 0 and 3 hours following emergency department presentation could identify patients at less than 1% risk of a 30-day ACE. Design, Setting, and Participants: A prospective, observational study at 15 emergency departments in the United States between 2011 and 2015 that included individuals 21 years and older, presenting to the emergency department with suspected acute coronary syndrome...
December 13, 2017: JAMA Cardiology
https://www.readbyqxmd.com/read/29234397/artemisia-iwayomogi-plus-curcuma-longa-synergistically-ameliorates-nonalcoholic-steatohepatitis-in-hepg2-cells
#4
Hyeong-Geug Kim, Sung-Bae Lee, Jin-Seok Lee, Won-Young Kim, Seung-Hoon Choi, Chang-Gue Son
The combination of Artemisia iwayomogi and Curcuma longa radix is frequently prescribed for liver diseases in TKM. However, the synergic effects of the two herbs on nonalcoholic steatohepatitis (NASH) have not yet been studied. Therefore, we investigated the anti-NASH effects of the water extract of A. iwayomogi (AI), C. longa radix (CL), and combination of the two herbs (ACE). Hepatic steatosis and NASH were induced in HepG2 cells by treatment with palmitic acid (PA, for 6 h) with/without pretreatment of ACE (25 or 50 μg/mL), AI (50 or 100 μg/mL), CL (50 or 100 μg/mL), curcumin (5 μg/mL), or scopoletin (5 μg/mL)...
2017: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/29234376/roles-of-nitric-oxide-and-prostaglandins-in-the-sustained-antihypertensive-effects-of-acanthospermum-hispidum-dc-on-ovariectomized-rats-with-renovascular-hypertension
#5
Rhanany Alan Calloi Palozi, Maysa Isernhagen Schaedler, Cleide Adriane Signor Tirloni, Aniely Oliveira Silva, Francislaine Aparecida Dos Reis Lívero, Roosevelt Isaias Carvalho Souza, Ariany Carvalho Dos Santos, Thiago Bruno Lima Prando, Lauro Mera de Souza, Arquimedes Gasparotto Junior
Although Acanthospermum hispidum is used in Brazilian folk medicine as an antihypertensive, no study evaluated its effects on a renovascular hypertension and ovariectomy model. So, this study investigated the mechanisms involved in the antihypertensive effects of an ethanol-soluble fraction obtained from A. hispidum (ESAH) using two-kidney-one-clip hypertension in ovariectomized rats (2K1C plus OVT). ESAH was orally administered at doses of 30, 100, and 300 mg/kg, daily, for 28 days, after 5 weeks of surgery...
2017: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/29223563/sexual-identity-adverse-childhood-experiences-and-suicidal-behaviors
#6
Kristen Clements-Nolle, Taylor Lensch, Amberlee Baxa, Christopher Gay, Sandra Larson, Wei Yang
PURPOSE: The objective of this study was to examine the influence of sexual identity and adverse childhood experiences (ACEs) on suicidal behaviors in a population-based sample of high school students. METHODS: A two-stage cluster random sampling design was used to recruit 5,108 students from 97 high schools. A total of 4,955 students (97%) provided information that allowed for classification of sexual identity into three groups: (1) lesbian, gay, or bisexual (LGB) (10%); (2) not sure (4...
December 6, 2017: Journal of Adolescent Health: Official Publication of the Society for Adolescent Medicine
https://www.readbyqxmd.com/read/29213504/utility-of-the-neuropsychiatric-inventory-questionnaire-npi-q-in-the-assessment-of-a-sample-of-patients-with-alzheimer-s-disease-in-chile
#7
Gada Musa, Fernando Henríquez, Carlos Muñoz-Neira, Carolina Delgado, Patricia Lillo, Andrea Slachevsky
The Neuropsychiatric Inventory Questionnaire (NPI-Q) is an informant-based instrument that measures the presence and severity of 12 Neuropsychiatric Symptoms (NPS) in patients with dementia, as well as informant distress. Objective: To measure the psychometric properties of the NPI-Q and the prevalence of NPS in patients with Alzheimer's disease (AD) in Chile. Methods: 53 patients with AD were assessed. Subjects were divided into two different groups: mild AD (n=26) and moderate AD (n=27)...
April 2017: Dementia & Neuropsychologia
https://www.readbyqxmd.com/read/29211853/nrf2-deficiency-upregulates-intrarenal-angiotensin-converting-enzyme-2-and-angiotensin-1-7-receptor-expression-and-attenuates-hypertension-and-nephropathy-in-diabetic-mice
#8
Shuiling Zhao, Anindya Ghosh, Chao-Sheng Lo, Isabelle Chenier, James W Scholey, Janos G Filep, Julie R Ingelfinger, Shao-Ling Zhang, John S D Chan
We investigated the role of nuclear factor erythroid 2-related factor 2 (Nrf2) in renin-angiotensin system (RAS) gene expression in renal proximal tubule cells (RPTCs) and in the development of systemic hypertension and kidney injury in diabetic Akita mice. We used adult male Akita Nrf2 knockout (KO) mice and Akita mice treated with trigonelline (an Nrf2 inhibitor) or oltipraz (an Nrf2 activator). We also examined immortalized rat RPTCs (IRPTCs) stably transfected with control plasmids or plasmids containing rat angiotensinogen (Agt), angiotensin-converting enzyme (ACE), angiotensin-converting enzyme-2 (Ace2) or angiotensin 1-7 receptor (MasR) gene promoters...
December 1, 2017: Endocrinology
https://www.readbyqxmd.com/read/29209903/influence-of-a-co-culture-of-streptococcus-thermophilus-and-lactobacillus-casei-on-the-proteolysis-and-ace-inhibitory-activity-of-a-beverage-based-on-reconstituted-goat-whey-powder
#9
Áurea Marcela de Souza Pereira, Daniely Rayane Bezerra de Farias, Blenda Brito de Queiroz, Michelangela Suelleny de Caldas Nobre, Mônica Tejo Cavalcanti, Hévila Oliveira Salles, Karina Maria Olbrich Dos Santos, Ana Claudia Dantas de Medeiros, Eliane Rolim Florentino, Flávia Carolina Alonso Buriti
The potential for reusability of whey is of concern due to its substantial nutritional value and, second, in view of the need to reduce environmental impact. The use of goat whey powder in the production of a fermented dairy beverage using a Lactobacillus casei culture as adjunct shows a good prospect of a food product with hypotensive activity. This study investigated the microbial viability, proteolysis and angiotensin-converting enzyme (ACE) inhibitory activity of a fermented dairy beverage produced with goat whey powder and a probiotic culture of L...
December 5, 2017: Probiotics and Antimicrobial Proteins
https://www.readbyqxmd.com/read/29204120/alternation-of-gut-microbiota-in-patients-with-pulmonary-tuberculosis
#10
Mei Luo, Yong Liu, Pengfei Wu, Dong-Xia Luo, Qun Sun, Han Zheng, Richard Hu, Stephen J Pandol, Qing-Feng Li, Yuan-Ping Han, Yilan Zeng
One-third of the world's population has been infected with Mycobacterium tuberculosis (M. tuberculosis), a primary pathogen of the mammalian respiratory system, while about 10% of latent infections progress to active tuberculosis (TB), indicating that host and environmental factors may determine the outcomes such as infection clearance/persistence and treatment prognosis. The gut microbiota is essential for development of host immunity, defense, nutrition and metabolic homeostasis. Thus, the pattern of gut microbiota may contribute to M...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/29202630/concurrent-new-drug-prescriptions-and-prognosis-of-early-breast-cancer-studies-using-the-danish-breast-cancer-group-clinical-database
#11
Deirdre Cronin-Fenton, Timothy L Lash, Thomas P Ahern, Per Damkier, Peer Christiansen, Bent Ejlertsen, Henrik T Sørensen
BACKGROUND: Myriad reports suggest that frequently used prescription drugs alter the viability of breast cancer cells in pre-clinical studies. Routine use of these drugs, therefore, may impact breast cancer prognosis, and could have important implications for public health. METHODS: The Danish Breast Cancer Group (DBCG) clinical database provides high-quality prospectively collected data on breast cancer diagnosis, treatment, and routine follow-up for breast cancer recurrence...
December 5, 2017: Acta Oncologica
https://www.readbyqxmd.com/read/29200408/angiotensin-converting-enzyme-activity-in-cavalier-king-charles-spaniels-with-an-ace-gene-polymorphism-and-myxomatous-mitral-valve-disease
#12
Kathryn M Meurs, Lisbeth H Olsen, Maria J Reimann, Bruce W Keene, Clarke E Atkins, Darcy Adin, Brent Aona, Julia Condit, Teresa DeFrancesco, Yamir Reina-Doreste, Joshua A Stern, Sandra Tou, Jessica Ward, Kathleen Woodruff
OBJECTIVES: Myxomatous mitral valve disease (MMVD) is the most common heart disease in the dog. It is particularly common in the Cavalier King Charles Spaniel (CKCS) breed and affected dogs are frequently managed with angiotensin-converting enzyme inhibitors (ACE-I). We have previously identified a canine ACE gene polymorphism associated with a decrease in angiotensin-converting enzyme (ACE) activity. The aim of this study was to evaluate for the prevalence of the ACE polymorphism in CKCS with mitral valve disease and to determine whether the presence of the polymorphism is associated with alterations in ACE activity at different stages of cardiac disease...
December 1, 2017: Pharmacogenetics and Genomics
https://www.readbyqxmd.com/read/29200093/ace-gene-plays-a-key-role-in-reducing-blood-pressure-in-hypertensive-elderlies-after-resistance-training-resistance-exercise-and-ace-polymorphism
#13
Fábio T Montrezol, Rodolfo Marinho, Glória de F A da, Vânia D'Almeida, Edilamar M de Oliveira, Ricardo J Gomes, Alessandra Medeiros
Hypertension is a difficult disease to control and exercise training plays a key role in hypertension control. Some individuals are not responsive to exercise training, so we highlight the polymorphism of angiotensin I converting enzyme, as a factor responsible for this lack of responsiveness. The aim of this study was to evaluate the influence of ACE (I/D) genotypes on effects of resistance training on blood pressure and chronic inflammation. Eighty-six hypertensive volunteers, aged between 60 and 80, were evaluated...
December 1, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29199612/involvement-of-different-genes-expressions-during-immunological-and-inflammatory-responses-in-vitiligo
#14
Chandra Kant Sharma, Monika Sharma, Kanika Prasad
Vitiligo is a condition of the skin distinguished by hypo-pigmentation. Etiology of this disorder is unknown, and several theories and mechanisms have been hypothesized. The inflammatory response in vitiligo is thought to be mediated by polymorphism in genes such as FOXP3, ACE, APE, GSTP1, TLR, SOD, CTLA-4, TAP/LMP gene cluster, etc. Theories including reactive oxygen species model, Nrf2-antioxidant response element (ARE) pathway, WNT pathway, tyrosinase activity, biochemical, molecular, and cellular alterations have been hypothesized to explain vitiligo pathogenesis...
2017: Critical Reviews in Eukaryotic Gene Expression
https://www.readbyqxmd.com/read/29199464/sperm-rna-elements-as-markers-of-health
#15
Rayanne B Burl, Stephanie Clough, Edward Sendler, Molly Estill, Stephen A Krawetz
Idiopathic infertility, an etiology not identified as part of standard clinical assessment, represents approximately 20% of all infertility cases. Current male infertility diagnosis focuses on the concentration, motility, and morphology of spermatozoa. This is of limited value when predicting birth success and of limited utility when selecting the optimum treatment. At fertilization, spermatozoa provide their genomic contribution, as well as a set of RNAs and proteins that have distinct roles in development...
December 3, 2017: Systems Biology in Reproductive Medicine
https://www.readbyqxmd.com/read/29196825/changes-in-prescription-patterns-in-older-hospitalized-patients-the-impact-of-forta-on-disease-related-over-and-under-treatments
#16
Farhad Pazan, Heinrich Burkhardt, Helmut Frohnhofen, Christel Weiss, Christina Throm, Alexandra Kuhn-Thiel, Martin Wehling
PURPOSE: Physicians often face difficulties in choosing appropriate medications for multimorbid older people. The FORTA (Fit for the Aged) classification (A: absolutely, B: beneficial, C: careful, D: don't) was proposed as a clinical tool for improving the quality of drug treatment in the aged. As an implicit tool, FORTA has been shown to aid medication optimization and improve clinical end points in the VALFORTA trial. In this prospective randomized controlled study, 207 older hospitalized patients received standard geriatric treatment and 202 patients received FORTA-guided treatment...
December 2, 2017: European Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/29196099/dkk3-overexpression-attenuates-cardiac-hypertrophy-and-fibrosis-in-an-angiotensin-perfused-animal-model-by-regulating-the-adam17-ace2-and-gsk-3%C3%AE-%C3%AE-catenin-pathways
#17
Chun-Gang Zhai, Ye-Yang Xu, Yuan-Yuan Tie, Ya Zhang, Wen-Qiang Chen, Xiao-Ping Ji, Yang Mao, Lei Qiao, Jing Cheng, Qing-Bo Xu, Cheng Zhang
AIMS: Cardiac pressure and humoral factors induce cardiac hypertrophy and fibrosis, which are characterized by increased stiffness, reduced contractility and altered perfusion. Angiotensin II (AngII) is well known to promote this pathology. Angiotensin-converting enzyme (ACE) 2, which cleaves AngII and forms Ang-(1-7), exerts protective anti-hypertrophy and anti-fibrosis effects. A disintegrin and metalloproteinase 17 (ADAM17), a membrane-bound enzyme reported to cleave ACE2, may participate in the pathological process of AngII perfusion-induced heart damage...
December 4, 2017: Journal of Molecular and Cellular Cardiology
https://www.readbyqxmd.com/read/29193260/racer-grasp-respiratory-weighted-aortic-contrast-enhancement-guided-and-coil-unstreaking-golden-angle-radial-sparse-mri
#18
Li Feng, Chenchan Huang, Krishna Shanbhogue, Daniel K Sodickson, Hersh Chandarana, Ricardo Otazo
PURPOSE: To develop and evaluate a novel dynamic contrast-enhanced imaging technique called RACER-GRASP (Respiratory-weighted, Aortic Contrast Enhancement-guided and coil-unstReaking Golden-angle RAdial Sparse Parallel) MRI that extends GRASP to include automatic contrast bolus timing, respiratory motion compensation, and coil-weighted unstreaking for improved imaging performance in liver MRI. METHODS: In RACER-GRASP, aortic contrast enhancement (ACE) guided k-space sorting and respiratory-weighted sparse reconstruction are performed using aortic contrast enhancement and respiratory motion signals extracted directly from the acquired data...
November 28, 2017: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
https://www.readbyqxmd.com/read/29187372/renal-tubular-ace-mediated-tubular-injury-is-the-major-contributor-to-microalbuminuria-in-early-diabetic-nephropathy
#19
Masahiro Eriguchi, Mercury Lin, Michifumi Yamashita, Tuantuan V Zhao, Zakir Khan, Ellen A Bernstein, Susan B Gurley, Romer A Gonzalez-Villalobos, Kenneth E Bernstein, Jorge Fernando Giani
Diabetic nephropathy is a major cause of end-stage renal disease in developed countries. While angiotensin-converting enzyme (ACE) inhibitors are used to treat diabetic nephropathy, how intrarenal ACE contributes to diabetic renal injury is uncertain. Here, two mouse models with different patterns of renal ACE expression were studied to determine the specific contribution of tubular versus glomerular ACE to early diabetic nephropathy: it-ACE mice, which make endothelial ACE but lack ACE expression by renal tubular epithelium, and ACE 3/9 mice, which lack endothelial ACE and only express renal ACE in tubular epithelial cells...
November 29, 2017: American Journal of Physiology. Renal Physiology
https://www.readbyqxmd.com/read/29168023/oxytocin-and-parenting-behavior-among-impoverished-mothers-with-low-vs-high-early-life-stress
#20
Megan M Julian, Katherine L Rosenblum, Jenalee R Doom, Christy Y Y Leung, Julie C Lumeng, Michelle Gómez Cruz, Delia M Vazquez, Alison L Miller
Recent work suggests that key aspects of sensitive parenting (e.g., warmth, emotional attunement) may be shaped in part by biology, specifically the neuropeptide oxytocin. However, some studies have found that oxytocin may not act in expected ways in higher-risk populations (e.g., those with postnatal depression or borderline personality disorder). This study examined the relation between oxytocin and parenting among mothers with varying levels of early life stress. Forty low-income mothers and their 34- to 48-month-old child participated in this study...
November 22, 2017: Archives of Women's Mental Health
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