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https://www.readbyqxmd.com/read/29783140/congenital-diaphragmatic-disease-an-unusual-presentation-in-adulthood-case-report
#1
Angela Gurrado, Roberta Maria Isernia, Alessandro De Luca, Valentina Ferraro, Daniela Virgintino, Anna Napoli, Giuseppe Cavallaro, Eugenio Maiorano, Angela Pezzolla, Mario Testini
INTRODUCTION: Congenital diaphragmatic disease is a quite common condition that usually occurs in the neonatal period, and the diagnosis of congenital diaphragmatic disease in adulthood is rare. CASE PRESENTATION: A 64-years-old Caucasian woman was admitted in emergency at our Department, due to a bowel obstruction and dyspnea. A CT-scan showed a diaphragmatic herniation in the left area, with malposition of dilated transverse and descending colon in the chest. An emergency laparatomy was performed, showing a toxic megacolon, in the absence of a true diaphragmatic hernia, and a left diaphragm and left liver hypoplasia...
May 7, 2018: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/29782951/clinical-consequences-of-toxic-envenomations-by-hymenoptera
#2
Justin O Schmidt
Many familiar Hymenoptera are brightly colored and can sting painfully-thus, their threat and clinical importance may be exaggerated. Most stinging insects only sting to defend themselves or their colonies from predators. The clinical nature of Hymenoptera envenomations contrasts that of other venomous animals, including other arthropods, primarily because allergic reaction, not direct intoxication, is the usual main concern. This review focuses mainly on the clinical features of direct toxicity to Hymenoptera envenomations, which can induce a high incidence of acute renal failure, liver failure, multiple organ failures, and death...
May 18, 2018: Toxicon: Official Journal of the International Society on Toxinology
https://www.readbyqxmd.com/read/29782898/incorporation-of-absorption-and-metabolism-into-liver-toxicity-prediction-for-phytochemicals-a-tiered-in-silico-qsar-approach
#3
Yitong Liu
An increased use of herbal dietary supplements has been associated with adverse liver effects such as elevated serum enzymes and liver failure. The safety assessment for herbal dietary supplements is challenging since they often contain complex mixtures of phytochemicals, most of which have unknown pharmacokinetic and toxicological properties. Rapid tools are needed to evaluate large numbers of phytochemicals for potential liver toxicity. The current study demonstrates a tiered approach combining identification of phytochemicals in liver toxic botanicals, followed by in silico quantitative structure-activity relationship (QSAR) evaluation of these phytochemicals for absorption (e...
May 18, 2018: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/29782166/toxicokinetics-tissue-distribution-and-excretion-of-dufulin-racemate-and-its-r-s-enantiomers-in-rats
#4
Huaguo Chen, Xin Zhou, Baoan Song
Dufulin is a plant antiviral agent with a novel molecular structure and has been used widely to prevent and control tobacco and rice viral diseases. In this study, an UHPLC-MS/MS assay was developed for rapid determination of dufulin racemate (rac-DFL) and its R (S)-enantiomers in rat plasma, tissues, urine and feces. A MALDI-MSI method was further used to visual research on tissue distribution after oral administration of the three analytes. Toxicokinetic study showed that both (R)-enantiomers of dufulin ((R)-DFL) and (S)-enantiomers of dufulin ((S)-DFL) had a faster ability to reach Cmax than that of rac-DFL...
May 21, 2018: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/29781056/phase-ib-study-of-pevonedistat-a-nedd8-activating-enzyme-inhibitor-in-combination-with-docetaxel-carboplatin-and-paclitaxel-or-gemcitabine-in-patients-with-advanced-solid-tumors
#5
A Craig Lockhart, Todd M Bauer, Charu Aggarwal, Carrie B Lee, R Donald Harvey, Roger B Cohen, Farhad Sedarati, Tsz Keung Nip, Hélène Faessel, Ajeeta B Dash, Bruce J Dezube, Douglas V Faller, Afshin Dowlati
Purpose This phase Ib study (NCT01862328) evaluated the maximum tolerated dose (MTD), safety, and efficacy of pevonedistat in combination with standard-of-care chemotherapies in patients with solid tumors. Methods Patients received pevonedistat with docetaxel (arm 1, n = 22), carboplatin plus paclitaxel (arm 2, n = 26), or gemcitabine (arm 3, n = 10) in 21-days (arms 1 and 2) or 28-days (arm 3) cycles. A lead-in cohort (arm 2a, n = 6) determined the arm 2 carboplatin dose. Dose escalation proceeded via continual modified reassessment...
May 21, 2018: Investigational New Drugs
https://www.readbyqxmd.com/read/29780557/pd-nanosheets-with-their-surface-coordinated-by-radioactive-iodide-as-a-high-performance-theranostic-nanoagent-for-orthotopic-hepatocellular-carcinoma-imaging-and-cancer-therapy
#6
Mei Chen, Zhide Guo, Qinghua Chen, Jingping Wei, Jingchao Li, Changrong Shi, Duo Xu, Dawang Zhou, Xianzhong Zhang, Nanfeng Zheng
Radiolabeled nanoparticles (NPs), taking advantage of nanotechnology and nuclear medicine, have shown attractive potential for cancer diagnosis and therapy. However, the high background signal in the liver and long-term toxic effects of radioisotopes caused by the nonselective accumulation of radiolabeled nanoparticles in organs have become the major challenges. Here, we report a pH-sensitive multifunctional theranostic platform with radiolabeled Pd nanosheets through a simple mixture of ultra-small Pd nanosheets and radioisotopes utilizing the strong adsorption of 131 I and 125 I on their surfaces (denoted as 131 I-Pd-PEG or 125 I-Pd-PEG)...
May 14, 2018: Chemical Science
https://www.readbyqxmd.com/read/29779429/genotoxicity-evaluation-of-carbon-monoxide-and-1-3-butadiene-using-a-new-joint-technology-the-in-vitro-%C3%AE-h2ax-hcs-assay-combined-with-air-liquid-interface-system
#7
Sen Zhang, Huan Chen, An Wang, Yong Liu, Hongwei Hou, Qingyuan Hu
To investigate the genotoxicity of gaseous toxicants CO and 1,3-butadiene in vitro, a novel combination technology-the in vitro γH2AX high content screening assay combined with air-liquid interface system was established. The results showed that this new technology was available and effective. Based on the joint technology, genotoxicity of CO and 1,3-butadiene was evaluated further in this study. The results showed that treatment concentrations (0, 20%,40%, 80% and 100%, v/v) and exposure time (15, 30, 45, 60 and 90 min) of CO both had no statistically significant effects on the induction of γH2AX (p > 0...
May 21, 2018: Toxicology Mechanisms and Methods
https://www.readbyqxmd.com/read/29779164/update-on-endothelin-receptor-antagonists-in-hypertension
#8
REVIEW
Michel Burnier
To review the most recent data on the development of endothelin receptor antagonists (ERAs) for the treatment of hypertension and the management of diabetic nephropathy RECENT FINDINGS: Recent reviews and meta-analyses of experimental and clinical data obtained with ERAs confirmed that endothelin receptor blockade is associated with significant decreases in blood pressure in essential hypertension but also in resistant hypertension. In addition, in patients with diabetic nephropathy, ERAs induce significant 30-40% decreases in albuminuria when administered on top of blockers of the renin-angiotensin system...
May 19, 2018: Current Hypertension Reports
https://www.readbyqxmd.com/read/29775928/tributyltin-impaired-reproductive-success-in-female-zebrafish-through-disrupting-oogenesis-reproductive-behaviors-and-serotonin-synthesis
#9
Wei-Yang Xiao, Ying-Wen Li, Qi-Liang Chen, Zhi-Hao Liu
Tributyltin (TBT), an organotin acting as aromatase (Cyp19a1) inhibitor, has been found to disrupt gametogenesis and reproductive behaviors in several fish species. However, few studies addressing the mechanisms underlying the impaired gametogenesis and reproduction have been reported. In this study, female adults of zebrafish (Danio rerio) were continuously exposed to two nominal concentrations of TBT (100 and 500 ng/L, actual concentrations: 90.8 ± 1.3 ng/L and 470.3 ± 2.7 ng/L, respectively) for 28 days...
May 12, 2018: Aquatic Toxicology
https://www.readbyqxmd.com/read/29775725/anti-hepatitis-c-virus-activity-and-synergistic-effect-of-nymphaea-alba-extracts-and-bioactive-constituents-in-liver-infected-cells
#10
Sidra Rehman, Usman Ali Ashfaq, Bushra Ijaz, Sheikh Riazuddin
BACKGROUND: Without an effective vaccine, hepatitis C virus (HCV) remains a global threat, inflicting 170-300 million carriers worldwide at risk of cirrhosis and hepatocellular carcinoma (HCC). Though various direct acting antivirals have been redeemed the hepatitis C treatment, a few restraints persist including possible side effects, viral resistance emergence, excessive cost which restricts its availability to a common person. HYPOTHESIS: There is no preventive HCV vaccine available today so the discovery of potent antiviral natural flora and their bioactive constituents may help to develop preventive cures against HCV infection...
May 15, 2018: Microbial Pathogenesis
https://www.readbyqxmd.com/read/29774219/effect-and-safety-of-sorafenib-in-patients-with-intermediate-hepatocellular-carcinoma-who-received-transarterial-chemoembolization-a-retrospective-comparative-study
#11
Xue-Fen Lei, Yang Ke, Tian-Hao Bao, Hao-Ran Tang, Xue-Song Wu, Zhi-Tian Shi, Jie Lin, Zhi-Xian Zhang, Hou Gu, Lin Wang
AIM: To evaluate the safety and efficacy of sorafenib plus transarterial chemoembolization (TACE) treatment for intermediate hepatocellular carcinoma (HCC). METHODS: Sixty-seven patients with intermediate-stage [Barcelona Clinic liver cancer stage B (BCLC-B)] HCC who were treated with sorafenib plus TACE or TACE alone between 2009 and 2011 were included in the study. Follow-up was until 2014 or patient death. Two groups were defined in the experiment: The experimental group, treated with sorafenib plus TACE, and the control group, treated with standard TACE alone...
May 16, 2018: World Journal of Clinical Cases
https://www.readbyqxmd.com/read/29774129/combined-abiraterone-acetate-plus-prednisone-salvage-prostate-bed-radiotherapy-and-lh-rh-agonists-carlha-gep12-in-biochemically-relapsing-prostate-cancer-patients-following-prostatectomy-a-phase-i-study-of-the-getug-gep
#12
Stéphane Supiot, Loic Campion, Pascal Pommier, Mélanie Dore, Clément Palpacuer, Séverine Racadot, Emmanuel Rio, Gérard A Milano, Céline Mahier-Ait Oukhatar, Christian Carrie
Background: To establish the maximum tolerated dose of abiraterone acetate plus prednisone (AA) combined with salvage radiotherapy (SRT) and goserelin in a phase 1 study in men with rising PSA following radical prostatectomy. Methods: AA was given during one month before SRT at 1000 mg PO once daily, then 750 mg (Dose Level 1, DL1) or 1000 mg (DL2) during 5 months combined with 6-months goserelin by injection on the first day of irradiation (scheme NEO) or one month before starting SRT (scheme CONCO)...
April 24, 2018: Oncotarget
https://www.readbyqxmd.com/read/29773189/effects-of-furosemide-administration-on-the-concentration-of-essential-and-toxic-elements-in-wistar-rats-by-inductively-coupled-plasma-optical-emission-spectrometry
#13
Luiz Raimundo Seneterri Silva Rodrigues Dos Santos, Aníbal de Freitas Santos, Maria das Graças Andrade Korn
Furosemide can interfere with the metabolism of chemical elements, changing their levels in several tissues, thus causing imbalance. In this study, inductively coupled plasma optical emission spectrometry (ICP OES) was used for multi-element analysis (Cd, Cu, Fe, Mg, Pb, Se and Zn) after microwave-assisted digestion, to evaluate the effect of furosemide (loop diuretic) on the composition of these essential and toxic elements in biological samples (liver, kidney, heart, lung and serum) of Wistar rats. Male and female Wistar rats (n = 40, 180-350 g) were randomly divided into 2 groups (n = 20/group)...
July 2018: Journal of Trace Elements in Medicine and Biology
https://www.readbyqxmd.com/read/29773174/in-vivo-bio-distribution-clearance-and-toxicity-assessment-of-biogenic-silver-and-gold-nanoparticles-synthesized-from-abutilon-indicum-in-wistar-rats
#14
Rani Mata, Jayachandra Reddy Nakkala, Varshney Khub Chandra, Kumar Raja, Sudha Rani Sadras
This study reports the bio-distribution and clearance of Abutilon indicum silver and gold nanoparticles (AIAgNPs and AIAuNPs) in Wistar rats. Rats in different groups were orally administered with 5 and 10 mg/Kg BW of AIAgNPs and AIAuNPs (size 1-25 nm) for 28 days and few were maintained until 58 days of washout period. Serum biochemical parameters were not changed significantly at both doses of AIAuNPs and at lower concentration of AIAgNPs. But, with 10 mg/Kg BW of AIAgNPs rats showed elevated levels of AST, ALP and ALT on day 29, however, these levels were restored to normal after washout period...
July 2018: Journal of Trace Elements in Medicine and Biology
https://www.readbyqxmd.com/read/29772942/modulation-of-xenobiotic-metabolizing-enzyme-activities-in-rat-liver-by-co-administration-of-morin-endosulfan-and-7-12-dimethylbenz-a-anthracene
#15
Canan Sapmaz, Tulin Firat, Aysel Kukner, Azra Bozcaarmutlu
Morin is a flavonoid which is present in many plants. Endosulfan and 7,12-dimethylbenz[a]anthracene (DMBA) are toxic chemicals that humans are exposed to in their daily lives. In this study, the protective role of morin was investigated in endosulfan and DMBA treated rats. Eight groups, each comprising seven 2.5-month-old adult male Wistar rats (weighing 170-255 g), were used. Endosulfan, morin, and DMBA were administered individually or in combinations, at 5 mg/kg body weight (bw) (three times/week), 25 mg/kg bw (three times/week), and 30 mg/kg bw (once/week for three weeks) via oral gavage, respectively...
May 18, 2018: Drug and Chemical Toxicology
https://www.readbyqxmd.com/read/29772511/estrogenic-potency-of-mc-lr-is-induced-via-stimulating-steroidogenesis-in-vitro-and-in-vivo-evidence
#16
Jie Hou, Yujing Su, Wang Lin, Honghui Guo, Li Li, Donald M Anderson, Dapeng Li, Rong Tang, Wei Chi, Xi Zhang
Waterborne microcystin-LR (MC-LR) has been reported to disrupt sex hormones, while its estrogenic potency remains controversial. We hypothesized that MC-LR could induce estrogenic effects via disrupting sex hormone synthesis, and verified this hypothesis by in vitro and in vivo assays. Effects of MC-LR (1, 10, 100, 500, 1000 and 5000 μg/L) on steroidogenesis were assessed in the H295R cells after 48 h. The contents of 17β-estradiol (E2) and testosterone (T) increased in a non-dose-dependent manner, which showed positive correlations with the expression of steroidogenic genes...
May 14, 2018: Environmental Pollution
https://www.readbyqxmd.com/read/29772372/palmitate-induces-nitric-oxide-production-and-inflammatory-cytokine-expression-in-zebrafish
#17
Seon-Heui Cha, Yongha Hwang, Kil-Nam Kim, Hee-Sook Jun
Inflammation markers in zebrafish embryos reflect a toxic response that is common to other animal models and humans. Free fatty acids (FFAs) are known to cause damage in various tissues by inducing inflammation. In this study, we investigated whether a FFA (palmitate) induces inflammation in zebrafish embryos. Nitrous oxide (NO) production and cyclooxygenase-2 (COX-2) mRNA expression were increased in palmitate-treated zebrafish embryos in a dose-dependent manner. mRNA expression of pro-inflammatory cytokines, interleukin-1β (IL-1β) and tumor necrosis factor-α (TNF- α), were also increased...
May 14, 2018: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/29772253/interstitial-ion-homeostasis-and-acid-base-balance-are-maintained-in-oedematous-brain-of-mice-with-acute-toxic-liver-failure
#18
Marta Obara-Michlewska, Fengfei Ding, Mariusz Popek, Alexei Verkhratsky, Maiken Nedergaard, Magdalena Zielinska, Jan Albrecht
Acute toxic liver failure (ATLF) rapidly leads to brain oedema and neurological decline. We evaluated the ability of ATLF-affected brain to control the ionic composition and acid-base balance of the interstitial fluid. ATLF was induced in 10-12 weeks old male C57Bl mice by single intraperitoneal (i.p.) injection of 100 μg/g azoxymethane (AOM). Analyses were carried out in cerebral cortex of precomatous mice 20-24 h after AOM administration. Brain fluid status was evaluated by measuring apparent diffusion coefficient [ADC] using NMR spectroscopy, Evans Blue extravasation, and accumulation of an intracisternally-injected fluorescent tracer...
May 14, 2018: Neurochemistry International
https://www.readbyqxmd.com/read/29771932/a-multi-center-preclinical-study-of-gadoxetate-dce-mri-in-rats-as-a-biomarker-of-drug-induced-inhibition-of-liver-transporter-function
#19
Anastassia Karageorgis, Stephen C Lenhard, Brittany Yerby, Mikael F Forsgren, Serguei Liachenko, Edvin Johansson, Mark A Pilling, Richard A Peterson, Xi Yang, Dominic P Williams, Sharon E Ungersma, Ryan E Morgan, Kim L R Brouwer, Beat M Jucker, Paul D Hockings
Drug-induced liver injury (DILI) is a leading cause of acute liver failure and transplantation. DILI can be the result of impaired hepatobiliary transporters, with altered bile formation, flow, and subsequent cholestasis. We used gadoxetate dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI), combined with pharmacokinetic modelling, to measure hepatobiliary transporter function in vivo in rats. The sensitivity and robustness of the method was tested by evaluating the effect of a clinical dose of the antibiotic rifampicin in four different preclinical imaging centers...
2018: PloS One
https://www.readbyqxmd.com/read/29771500/rational-design-of-cancer-targeted-selenadiazole-derivative-as-efficient-radiosensitizer-for-precise-cancer-therapy
#20
Delong Zeng, Shulin Deng, Chengcheng Sang, Jianfu Zhao Zhao, Tianfeng Chen
Chemical drug design based on the biochemical characteristics of cancer cells has become an important strategy for discovery of targeted therapies for personalized cancer medicine. Herein, cancer targeting RGD peptide has been covalently conjugated to selenadiazole derivative (RGD-SeD) to improve its cancer selectivity. The RGD decoration significantly enhances the anticancer efficacy of RGD-SeD in αVβ3 integrin-overexpressing HepG2 liver cancer cells, but not in normal liver cells. Cellular uptake assay and fluorescent imaging confirmed the selectivity of RGD-SeD to integrin overexpressing cancer cells...
May 17, 2018: Bioconjugate Chemistry
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