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https://www.readbyqxmd.com/read/27921359/modulation-of-vegf-signaling-in-a-mouse-model-of-diabetes-by-xanthohumol-and-8-prenylnaringenin-unveiling-the-angiogenic-paradox-and-metabolism-interplay
#1
Raquel Costa, Ilda Rodrigues, Luísa Guardão, Joana Quelhas Lima, Emília Sousa, Raquel Soares, Rita Negrão
SCOPE: Imbalance in kidney and heart neovascularization is common in type2 Diabetes (T2DM) patients. Nevertheless, the mechanisms governing this angiogenic paradox have not been elucidated. Xanthohumol (XN) and 8-prenylnaringenin (8PN) beer polyphenols modulate angiogenesis, being thus targets for T2DM-related complications. Our work examined whether polyphenols consumption affects angiogenic paradox and metabolism in a T2DM mouse model. METHODS AND RESULTS: An increase in kidney and a reduction in left ventricle (LV) microvessels of diabetic C57Bl/6 mice were observed...
December 6, 2016: Molecular Nutrition & Food Research
https://www.readbyqxmd.com/read/27921022/the-protective-effect-of-hydro-alcoholic-extract-of-mangrove-avicennia-marina-l-leaves-on-kidney-injury-induced-by-carbon-tetrachloride-in-male-rats
#2
Naser Mirazi, Seyedeh-Nahid Movassagh, Mahmoud Rafieian-Kopaei
BACKGROUND: Materials can cause liver and kidney damage which carbon tetrachloride is one of these substances. Medicinal plants and their essential oils and extracts have been used to a large extent as drugs to better control and management of kidney diseases. OBJECTIVES: The aim of this study was to investigate the effect of hydro-alcoholic extract of Avicennia marina leaves in the treatment of renal toxicity induced by carbon tetrachloride. METHODS: Forty-two male rats were randomly divided into 6 groups (n = 7): control (taking normal saline, 0...
October 2016: Journal of Nephropathology
https://www.readbyqxmd.com/read/27920365/maximizing-the-usefulness-of-statistical-classifiers-for-two-populations-with-illustrative-applications
#3
Daniel R Jeske, Steven Smith
The usefulness of two-class statistical classifiers is limited when one or both of the conditional misclassification rates is unacceptably high. Incorporating a neutral zone region into the classifier provides a mechanism to refer ambiguous cases to follow-up where additional information might be obtained to clarify the classification decision. Through the use of the neutral zone region, the conditional misclassification rates can be controlled and the classifier becomes useful. Three real-life examples, including applications to prostate cancer and kidney dysfunction following heart surgery, are used to illustrate how neutral zone regions can extract utility from disappointing classifiers that might otherwise be abandoned...
December 5, 2016: Statistical Methods in Medical Research
https://www.readbyqxmd.com/read/27918494/associations-between-neutrophil-gelatinase-associated-lipocalin-neutrophil-to-lymphocyte-ratio-atrial-fibrillation-and-renal-dysfunction-in-chronic-heart-failure
#4
Onur Argan, Dilek Ural, Guliz Kozdag, Tayfun Sahin, Serdar Bozyel, Mujdat Aktas, Kurtulus Karauzum, Irem Yilmaz, Emir Dervis, Aysen Agir
BACKGROUND Atrial fibrillation (AF) and renal dysfunction are two common comorbidities in patients with chronic heart failure with reduced ejection fraction (HFrEF). This study evaluated the effect of permanent AF on renal function in HFrEF and investigated the associations of atrial fibrillation, neutrophil gelatinase-associated lipocalin (NGAL), and neutrophil-to-lymphocyte ratio (NLR) with adverse clinical outcome. MATERIAL AND METHODS Serum NGAL levels measured by ELISA and NLR were compared between patients with sinus rhythm (HFrEF-SR, n=68), with permanent AF (HFrEF-AF, n=62), and a healthy control group (n=50)...
December 5, 2016: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/27916297/protective-effects-of-thymoquinone-and-avenanthramides-on-titanium-dioxide-nanoparticles-induced-toxicity-in-sprague-dawley-rats
#5
Khaled M A Hassanein, Yasmin O El-Amir
The protective effect of thymoquinone (TQ), the major active ingredient of Nigella sativa seeds, and avenanthramides (AVA) enriched extract of oats on titanium dioxide naonparticles (TiO2 NPs) induced toxicity and oxidative stress in Sprague-Dawley (SD) rats was investigated. Sixty rats were divided into 6 equal groups. The first, second, third, fourth and fifth groups received TiO2 NPs, TiO2 NPs and TQ, TiO2 NPs and AVA, TQ only, or AVA only for 6 weeks. The sixth group served as the control. Exposure to TiO2 NPs resulted in increased liver enzyme markers, oxidative stress indices, tumor necrosis factor alpha (TNF-α) and DNA damage...
August 9, 2016: Pathology, Research and Practice
https://www.readbyqxmd.com/read/27916000/nut-consumption-and-risk-of-cardiovascular-disease-total-cancer-all-cause-and-cause-specific-mortality-a-systematic-review-and-dose-response-meta-analysis-of-prospective-studies
#6
Dagfinn Aune, NaNa Keum, Edward Giovannucci, Lars T Fadnes, Paolo Boffetta, Darren C Greenwood, Serena Tonstad, Lars J Vatten, Elio Riboli, Teresa Norat
BACKGROUND: Although nut consumption has been associated with a reduced risk of cardiovascular disease and all-cause mortality, data on less common causes of death has not been systematically assessed. Previous reviews missed several studies and additional studies have since been published. We therefore conducted a systematic review and meta-analysis of nut consumption and risk of cardiovascular disease, total cancer, and all-cause and cause-specific mortality. METHODS: PubMed and Embase were searched for prospective studies of nut consumption and risk of cardiovascular disease, total cancer, and all-cause and cause-specific mortality in adult populations published up to July 19, 2016...
December 5, 2016: BMC Medicine
https://www.readbyqxmd.com/read/27915431/time-dependent-postmortem-redistribution-of-morphine-and-its-metabolites-in-blood-and-alternative-matrices-application-of-ct-guided-biopsy-sampling
#7
Sandra N Staeheli, Dominic Gascho, Lars C Ebert, Thomas Kraemer, Andrea E Steuer
Interpretation of postmortem morphine concentrations in forensic toxicology provides several pitfalls such as missing information on tolerance, analyte stability, or postmortem redistribution (PMR). Recently, it had been shown that computed tomography (CT)-guided collection of biopsies using a robotic arm (virtobot) provides a valuable strategy for systematic studies on time-dependent PMR. Using this technique, time-dependent PMR of morphine and its metabolites was investigated in 12 cases. At admission to the institute (t1), femoral and heart blood (right ventricle) as well as biopsies from the right lung, the right kidney, liver, spleen, and muscle tissue were collected...
December 3, 2016: International Journal of Legal Medicine
https://www.readbyqxmd.com/read/27915082/the-heart-failure-pandemic-the-clinical-and-economic-burden-in-greece
#8
P Stafylas, D Farmakis, G Kourlaba, G Giamouzis, K Tsarouhas, N Maniadakis, J Parissis
BACKGROUND: The objective of this study was to identify the epidemiological and clinical characteristics of heart failure (HF) patients in Greece as well as the economic burden and the distribution of costs for the management of the disease. METHODS: Eight Greek secondary and tertiary cardiology centres from different cities have participated in a prospective, observational survey, the ESC HF Pilot Survey. 307 patients with HF, 177 hospitalised and 130 outpatients, have been recruited and monitored for 12months...
October 17, 2016: International Journal of Cardiology
https://www.readbyqxmd.com/read/27915018/design-and-surface-immobilization-of-short-anti-biofilm-peptides
#9
Biswajit Mishra, Tamara Lushnikova, Radha M Golla, Xiuqing Wang, Guangshun Wang
: Short antimicrobial peptides are essential to keep us healthy and their lasting potency can inspire the design of new types of antibiotics. This study reports the design of a family of eight-residue tryptophan-rich peptides (TetraF2W) obtained by converting the four phenylalanines in temporin-SHf to tryptophans. The temporin-SHf template was identified from the antimicrobial peptide database (http://aps.unmc.edu/AP). Remarkably, the double arginine variant (TetraF2W-RR) was more effective in killing methicillin-resistant Staphylococcus aureus (MRSA) USA300, but less cytotoxic to human skin HaCat and kidney HEK293 cells, than the lysine-containing dibasic combinations (KR, RK and KK)...
November 30, 2016: Acta Biomaterialia
https://www.readbyqxmd.com/read/27914528/food-advanced-glycation-end-products-aggravate-the-diabetic-vascular-complications-via-modulating-the-ages-rage-pathway
#10
Xing Lv, Gao-Hong Lv, Guo-Ying Dai, Hong-Mei Sun, Hui-Qin Xu
The aim of this study was to investigate the effects of high-advanced glycation end products (AGEs) diet on diabetic vascular complications. The Streptozocin (STZ)-induced diabetic mice were fed with high-AGEs diet. Diabetic characteristics, indicators of renal and cardiovascular functions, and pathohistology of pancreas, heart and renal were evaluated. AGEs/RAGE/ROS pathway parameters were determined. During the experiments, the diabetic mice exhibited typical characteristics including weight loss, polydipsia, polyphagia, polyuria, high-blood glucose, and low-serum insulin levels...
November 2016: Chinese Journal of Natural Medicines
https://www.readbyqxmd.com/read/27914527/prophylactic-effects-of-alkaloids-from-ba-lotus-seeds-on-l-nna-induced-hypertension-in-mice
#11
Peng Sun, Kai Zhu, Cun Wang, Wei-Wei Liu, De-Guang Peng, Xin Zhao
Alkaloids from Ba lotus seeds (ABLS) are a kind of important functional compounds in lotus seeds. The present study was designed to determine its hypertension prophylactic effects in the L-NNA-induced mouse hypertension model. The mice were treated with ABLS, the serum and tissues levels of NO, MDA, ET-1, VEGF, and CGRP were determined using the experimental kits, the mRNA levels of various genes in the heart muscle and blood vessel tissues were further determined by RT-PCR assay. ABLS could reduce the systolic blood pressure (SBP), mean blood pressure (MBP), and diastolic blood pressure (DBP), compared to that of the model control group...
November 2016: Chinese Journal of Natural Medicines
https://www.readbyqxmd.com/read/27912745/ganoderma-lucidum-beta-1-3-1-6-glucan-as-an-immunomodulator-in-inflammation-induced-by-a-high-cholesterol-diet
#12
Yu-Sheng Wu, Shu-Ying Ho, Fan-Hua Nan, Shiu-Nan Chen
BACKGROUND: Binding of beta 1,3/1,6 glucan of Ganoderma lucidum (G. lucidum) with the receptor results in a series of signal transfers (signalling cascades), which activates the transcription factors for regulating inflammation. Excess cholesterol intake leads to an increase in the distance between fat cells and capillaries, which may cause hypoxia in the fat tissue of obese mice. This hypoxia induces the death of fat cells, resulting in the inflammation of adipose tissue or an increase in the inflammatory gene expression associated with obesity...
December 3, 2016: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/27912212/knockdown-of-inhibitory-guanine-nucleotide-binding-protein-gi%C3%AE-2-by-antisense-oligodeoxynucleotides-attenuates-the-development-of-hypertension-and-tachycardia-in-spontaneously-hypertensive-rats
#13
Yousra Ali El-Basyuni, Yuan Li, Madhu B Anand-Srivastava
BACKGROUND: We previously showed that the levels of both Giα-2 and Giα-3 proteins were augmented in spontaneously hypertensive rats (SHRs) before the onset of hypertension. In addition, intraperitoneal injection of pertussis toxin, which inactivates both Giα proteins, prevented the development of hypertension in SHRs. The aim of the present study was to determine the specific contributions of Giα-2 and Giα-3 proteins to the development of hypertension. METHODS AND RESULTS: Antisense oligodeoxynucleotide of Giα-2 and Giα-3 encapsulated in PEG/DOTAP/DOPE cationic liposomes were administrated intravenously into 3-week-old prehypertensive SHRs and Wistar Kyoto rats, whereas the control Wistar Kyoto rats and SHRs received PBS, empty liposomes, or sense...
October 26, 2016: Journal of the American Heart Association
https://www.readbyqxmd.com/read/27912203/prognostic-factors-associated-with-15-year-mortality-in-patients-with-hospitalized-systolic-hf-results-of-the-observational-community-based-epical-cohort-study
#14
Nelly Agrinier, Nathalie Thilly, Serge Briançon, Yves Juillière, Paul-Michel Mertes, Jean-Pierre Villemot, François Alla, Faiez Zannad
AIMS: Little data on very long-term survival and associated prognostic factors in heart failure (HF) are available. The aim was to describe 15-year survival and to identify the baseline prognostic factors associated with mortality in a community-based sample of patients hospitalized for systolic HF. METHODS: Vital status was collected 15years after inclusion of 352 patients hospitalized for systolic HF born in France from the prospective cohort EPICAL. The prognostic value of baseline socioeconomic, clinical and biological characteristics on 15-year mortality was assessed using Cox models...
November 12, 2016: International Journal of Cardiology
https://www.readbyqxmd.com/read/27912193/comparative-tissue-distribution-and-excretion-study-of-alkaloids-from-herba-ephedrae-radix-aconiti-lateralis-extracts-in-rats
#15
Mengyue Ren, Shuai Song, Dedong Liang, Weiting Hou, Xiaomei Tan, Jiabo Luo
Herba Ephedrae-Radix Aconiti Lateralis, composed of Ephedrae (Mahuang in Chinese) and Radix Aconiti Lateralis (Fuzi in Chinese), is a classical herbal combination proven to be effective in treating common cold, asthma, and rheumatoid arthritis. Alkaloids, bioactive components of the herbal extract, have been associated with many side effects. Nine alkaloids, including norephedrine, norpseudoephedrine, ephedrine, pseudoephedrine, methylephedrine, hypaconitine, benzoylaconine, benzoylmesaconine and benzoylhypaconine, were simultaneously quantified within 14...
November 13, 2016: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/27910780/naringenin-ameliorates-doxorubicin-toxicity-and-hypoxic-condition-in-dalton-s-lymphoma-ascites-tumor-mouse-model-evidence-from-electron-paramagnetic-resonance-imaging
#16
Venkatesan Kathiresan, Swathika Subburaman, Arun Venkatesh Krishna, Mathivanan Natarajan, Gandhidasan Rathinasamy, Kumaresan Ganesan, Murugesan Ramachandran
Doxorubicin (DOX) is a well-known cytotoxic agent used extensively as a chemotherapeutic drug to eradicate a wide variety of human cancers. Reactive oxygen species (ROS)-mediated oxidative stress during DOX treatment can induce cardiac, renal, and hepatic toxicities, which can constrain its use as a potential cytotoxic agent. The present work investigates the antioxidant potential of naringenin (NAR) against DOXinduced toxicities of a Dalton's lymphoma ascites (DLA) tumor-bearing mouse model. Mice were randomized into four groups: a negative control, positive control, DOX (2...
2016: Journal of Environmental Pathology, Toxicology and Oncology
https://www.readbyqxmd.com/read/27910004/dabigatran-overdose-a-case-report-of-acute-hepatitis-extracorporeal-treatment
#17
Mariagrazia Porru, Antonella Mameli, Maria E Cianchetti, Mario Musu, Paola Schirru, Maria F Ruberto, Doris Barcellona, Francesco Marongiu
Dabigatran is an oral, direct thrombin inhibitor approved by international regulatory agencies for stroke prevention in patients with paroxysmal or persistent non-rheumatic atrial fibrillation (AF). The benefits of dabigatran are widely described, but its use in the geriatric population is not without risk. Chronic kidney disease is a common comorbidity with AF, and thus frequent checks of renal function in elderly patients are recommended. We report a case of dabigatran intoxication in an elderly man affected by heart failure and worsening renal function, who developed acute hepatitis and coma, which was successfully treated with continuous veno-venous hemodiafiltration...
December 1, 2016: International Journal of Hematology
https://www.readbyqxmd.com/read/27909966/oxidative-balance-in-rats-during-adaptation-to-swimming-load
#18
A V Elikov
The main parameters of free radical oxidation and antioxidant defense in the blood plasma, erythrocytes, and homogenates of skeletal muscles, heart, liver, lungs, and kidneys were studied in adult outbred albino male rats with different degree of adaptation to moderate exposure to swimming. The rats were trained to swim regularly over 1 month. Changes in oxidative balance varied in organs and tissues and depended on the level of training. Malonic dialdehyde content in the erythrocytes after swimming increased by 13...
December 2, 2016: Bulletin of Experimental Biology and Medicine
https://www.readbyqxmd.com/read/27909438/donor-specific-regulatory-t-cells-acquired-from-tolerant-mice-bearing-cardiac-allograft-promote-mixed-chimerism-and-prolong-intestinal-allograft-survival
#19
Xiao-Fei Shen, Jin-Peng Jiang, Jian-Jun Yang, Wei-Zhong Wang, Wen-Xian Guan, Jun-Feng Du
The induction of donor-specific transplant tolerance has always been a central problem for small bowel transplantation (SBT), which is thought to be the best therapy for end-stage bowel failure. With the development of new tolerance-inducing strategies, mixed chimerism induced by co-stimulation blockade has become most potent for tolerance of allografts, such as skin, kidney, and heart. However, a lack of clinically available co-stimulation blockers has hindered efficient application in humans. Furthermore, unlike those for other types of solid organ transplantation, strategies to induce robust mixed chimerism for intestinal allografts have not been fully developed...
2016: Frontiers in Immunology
https://www.readbyqxmd.com/read/27908421/low-magnesium-diet-alters-distribution-of-macroelements-and-trace-elements-in-tissues-and-organs-of-female-rats
#20
Anastasia A Zheltova, Maria V Kharitonova, Igor N Iezhitsa, Eugeny P Serebryansky, Oleg Y Evsyukov, Alexander A Spasov, Anatoly V Skalny
The aim of the present study was to assess whether dietary magnesium deficiency can alter distribution of macroelements and trace elements in different organs and tissues. Experiments were carried out on 12 adult female Wistar rats, which were fed either a diet with low Mg content (≤20mgkg(-1) of diet) (LMgD) or a diet with daily recommended Mg content (≈500mgkg(-1)) as control group (CG) for 70 days. On the 70th day of the experiment heart, aorta, femoral skeletal muscle, forebrain, cerebellum, pituitary gland, thyroid gland, ovaries, uterus, liver, kidneys, and spleen were taken for analysis of mineral content...
January 2017: Journal of Trace Elements in Medicine and Biology
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