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https://www.readbyqxmd.com/read/28550025/mineralocorticoid-receptor-null-mice-informing-cell-type-specific-roles
#1
Timothy James Cole, Morag Young
The mineralocorticoid receptor (MR) mediates the actions of two important adrenal corticosteroid hormones, aldosterone and cortisol. The cell signalling roles of the MR in vivo have expanded enormously since the cloning of human MR gene 30 years ago and the first MR gene knockout in mice nearly 20 years ago. Complete ablation of the MR revealed important roles postnatally for regulation of kidney epithelial functions, with MR-null mice dying 1-2 weeks postnatally from renal salt wasting and hyperkalaemia, with elevated plasma renin and aldosterone...
May 26, 2017: Journal of Endocrinology
https://www.readbyqxmd.com/read/28541558/drinking-water-contamination-from-perfluoroalkyl-substances-pfas-an-ecological-mortality-study-in-the-veneto-region-italy
#2
Marina Mastrantonio, Edoardo Bai, Raffaella Uccelli, Vincenzo Cordiano, Augusto Screpanti, Paolo Crosignani
: Perfluoroalkyl substances (PFAS), a heterogeneous group of highly stable man-made chemicals, have been widely used since 1960s and can be detected almost ubiquitously in all environmental matrices. In Italy, on January 2014, drinking water contamination in an area of the Veneto Region was detected mainly due to the drain of fluorinated chemicals by a manufacturing company operating since 1964. : The present ecological mortality study was aimed at comparing mortality for some causes of death selected on the basis of previous reported associations, during the period 1980-2013, in municipalities with PFAS contaminated and uncontaminated drinking water on the basis of the levels indicated by the Italian National Health Institute (ISS)...
May 23, 2017: European Journal of Public Health
https://www.readbyqxmd.com/read/28540199/role-of-different-imaging-modalities-of-vascular-calcification-in-predicting-outcomes-in-chronic-kidney-disease
#3
REVIEW
Sinee Disthabanchong, Sarinya Boongird
Vascular calcification (VC) is common among patients with chronic kidney disease (CKD). The severity of VC is associated with increased risk of cardiovascular events and mortality. Risk factors for VC include traditional cardiovascular risk factors as well as CKD-related risk factors such as increased calcium and phosphate load. VC is observed in arteries of all sizes from small arterioles to aorta, both in the intima and the media of arterial wall. Several imaging techniques have been utilized in the evaluation of the extent and the severity of VC...
May 6, 2017: World Journal of Nephrology
https://www.readbyqxmd.com/read/28539338/expression-of-trans-and-paracellular-calcium-and-magnesium-transport-proteins-in-renal-and-intestinal-epithelia-during-lactation
#4
Megan R Beggs, Ida Appel, Per Svenningsen, Karsten Skjødt, R Todd Alexander, Henrik Dimke
Significant alterations in maternal calcium (Ca2+) and magnesium (Mg2+) balance occur during lactation. Ca2+ is the primary divalent cation mobilized into breast milk by demineralization of the skeleton and alterations in intestinal and renal Ca2+ transport. Mg2+ is also concentrated in breast milk, but the underlying mechanisms are not well understood. To determine the molecular alterations in Ca2+ and Mg2+ transport in the intestine and kidney during lactation, 3 groups of female mice consisting of either non-pregnant controls, lactating mice, or mice undergoing involution were examined...
May 24, 2017: American Journal of Physiology. Renal Physiology
https://www.readbyqxmd.com/read/28532671/ochratoxin-a-transport-by-the-human-breast-cancer-resistance-protein-bcrp-multidrug-resistance-protein-2-mrp2-and-organic-anion-transporting-polypeptides-1a2-1b1-and-2b1
#5
Xiaozhe Qi, Els Wagenaar, Wentao Xu, Kunlun Huang, Alfred H Schinkel
Ochratoxin A (OTA) is a fungal secondary metabolite that can contaminate various foods. OTA has several toxic effects like nephrotoxicity, hepatotoxicity, and neurotoxicity in different animal species, but its mechanisms of toxicity are still unclear. How OTA accumulates in kidney, liver, and brain is as yet unknown, but transmembrane transport proteins are likely involved. We studied transport of OTA in vitro, using polarized MDCKII cells transduced with cDNAs of the efflux transporters mouse (m)Bcrp, human (h)BCRP, mMrp2, or hMRP2, and HEK293 cells overexpressing cDNAs of the human uptake transporters OATP1A2, OATP1B1, OATP1B3, or OATP2B1 at pH7...
May 19, 2017: Toxicology and Applied Pharmacology
https://www.readbyqxmd.com/read/28525424/metastatic-melanoma-with-papillary-features-a-mimic-and-possible-diagnostic-pitfall
#6
Alberto Valero-Torres, Victor G Prieto, Priyadharsini Nagarajan, Carlos A Torres-Cabala, Michael T Tetzlaff, Jonathan L Curry, Doina Ivan, Phyu P Aung
Papillary and pseudopapillary features are histopathologic findings typically associated with carcinomas (thyroid, pancreas, breast, prostate, bladder, kidney, or ovary) or mesothelioma. Melanoma is typically composed of nested and variably pigmented atypical cells. Here, we report a case of in-transit metastasis of melanoma presenting with prominent papillary features, and we discuss the differential diagnoses of neoplasms with papillary features. This case report suggests that the spectrum of neoplasms with papillary features should be expanded to include melanoma, a pattern that, to the best of our knowledge, is uncommon...
June 2017: American Journal of Dermatopathology
https://www.readbyqxmd.com/read/28520410/proteolytically-stable-cyclic-decapeptide-for-breast-cancer-cell-targeting
#7
Yogita Raghuwanshi, Hashem Rajab Etayash, Rania Soudy, Igor Paiva, Afsaneh Lavasanifar, Kamaljit Kaur
Starting with a previously reported linear breast cancer targeting decapeptide WxEAAYQkFL, here we report the synthesis of a novel cyclic peptide analogue cyclicWXEAAYQkFL. The N- to C-terminus amide cyclized peptide with one D-amino acid (k) displayed higher uptake by breast cancer cells, with minimal uptake by the non-cancerous cells compared to the linear peptide with two D-amino acids (x and k), and was stable toward proteolytic degradation. When immobilized on gold microcantilever surface, the cyclic peptide was able to capture breast cancer cells specifically and sense samples with ≥25 cancer cells/mL...
May 18, 2017: Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28513838/the-emerging-role-of-npnt-in-tissue-injury-repair-and-bone-homeostasis
#8
REVIEW
Youqiang Sun, Vincent Kuek, Heng Qiu, Jennifer Tickner, Leilei Chen, Haibin Wang, Wei He, Jiake Xu
Nephronectin (NPNT), a highly conserved extracellular matrix protein, plays an important role in regulating cell adhesion, differentiation, spreading and survival. NPNT protein belongs to epidermal growth factor (EGF)-like superfamily and exhibits several common structural determinants; including EGF-like repeat domains, MAM domain (Meprin, A5 Protein, and Receptor Protein-Tyrosine Phosphatase µ), RGD motif (Arg-Gly-Asp) and a coiled-coil domain. It regulates integrins-mediated signaling pathways via the interaction of its RGD motif with integrin α8β1...
May 17, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28506831/cryab-promotes-the-invasion-and-metastasis-of-colorectal-cancer-via-epithelial-mesenchymal-transition
#9
Chuanbing Shi, Xiaojun Yang, Xiaodong Bu, Ning Hou, Pingsheng Chen
Alpha B-crystallin (CRYAB, HSPB5) is a protein that was first discovered in the lens of the eye. It is a member of the small heat-shock protein family (sHsps). CRYAB functions primarily as a molecular chaperone to prevent the aggregation and degradation of damaged unfolded proteins due to cellular damage resulting from heat shock, radiation, oxidative stress, and other insults, thereby promoting cell survival and preventing apoptosis. In recent years, the role of CRYAB in tumorigenesis, tumor invasion, and metastasis has received increasing attention...
May 12, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28506052/-renal-cell-carcinoma-with-retroperitoneal-metastases-and-renal-invasion-from-breast-cancer-a-case-report
#10
Go Noguchi, Yoko Saito, Taku Mitome, Susumu Umemoto, Ayano Kakazu, Tomoko Sugiyama, Teiichiro Ueki
A 67-year-old female was hospitalized with back pain. Computed tomography (CT) incidentally revealed a tumor in her left kidney tumor (33 mm) and bilateral breast tumors. She underwent a breast biopsy and was diagnosed with breast cancer (invasive lobular cancer, cT2N0M0). The renal tumor was suspected to be clear cell carcinoma, cT1aN0M0, based on contrast-enhanced CT. Surgery was considered necessary for both the breast cancer and renal tumor. First, laparoscopic radical nephrectomy was performed for the renal tumor...
April 2017: Hinyokika Kiyo. Acta Urologica Japonica
https://www.readbyqxmd.com/read/28505480/triphenyltin-iv-benzoates-with-diazenyl-imino-scaffold-exhibiting-remarkable-apoptosis-mediated-by-reactive-oxygen-species
#11
Tushar S Basu Baul, Dhrubajyoti Dutta, Andrew Duthie, Ritika Prasad, Nishant Kumar Rana, Biplob Koch, Edward R T Tiekink
The cytotoxic potency of a series of triphenyltin(IV) compounds of general composition [Ph3Sn(L(n))] (1-6) has been probed in vitro employing MDA-MB-231 (human breast cancer) and HeLa (human cervical cancer) cell lines, where L(n)=L(1-3); isomeric 2/3/4-{(E)-2-[4-(dimethylamino)phenyl]diazenyl}benzoates and L(4-6) are their corresponding isoelectronic imino analogues 2/3/4-[(E)-{[4-(dimethylamino)phenyl]methylidene}amino]benzoates. Compounds 1-6 have been characterized by elemental analysis and their spectroscopic properties were studied using IR and NMR ((1)H, (13)C, (119)Sn) techniques...
April 29, 2017: Journal of Inorganic Biochemistry
https://www.readbyqxmd.com/read/28503746/application-of-ultrasound-elastography-for-chronic-allograft-dysfunction-in-kidney-transplantation
#12
REVIEW
Zijie Wang, Haiwei Yang, Chuanjian Suo, Jifu Wei, Ruoyun Tan, Min Gu
Interstitial fibrosis is the main characteristic of chronic allograft dysfunction, which remains the key factor affecting long-term allograft survival after kidney transplantation. Ultrasound elastography (UE), including real-time elastography, transient elastography, and acoustic radiation force impulse, has been applied widely in breast, thyroid, and liver diseases, especially in the assessment of liver fibrosis. Recently, numerous studies have reported the efficacy of UE methods in evaluating renal allograft fibrosis...
May 15, 2017: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/28497348/evaluation-of-dietary-palygorskite-supplementation-on-growth-performance-mineral-accumulations-antioxidant-capacities-and-meat-quality-of-broilers-fed-lead-contaminated-diet
#13
Y F Cheng, Y P Chen, C Wen, W B Wang, A Q Wang, Y M Zhou
The objective of this study was to evaluate influence of dietary palygorskite (Pal) supplementation on growth performance, mineral accumulations in the tissues (livers, kidneys, and muscles), antioxidant capacities, and meat quality of broilers fed lead (Pb)-contaminated diet. One-hundred forty-four male broiler chicks were randomly divided into three treatment groups, receiving a corn-soybean meal basal diet (the control group), the basal diet contaminated with 10 mg/kg Pb (the Pb group), and the basal diet with 10-g/kg Pal supplementation and 10-mg/kg Pb contamination (the Pal/Pb group) from 1 to 42 days of age, respectively...
May 12, 2017: Biological Trace Element Research
https://www.readbyqxmd.com/read/28493933/direct-estrogen-receptor-er-her-family-crosstalk-mediating-sensitivity-to-lumretuzumab-and-pertuzumab-in-er-breast-cancer
#14
Denis Collins, Wolfgang Jacob, Juan Miguel Cejalvo, Maurizio Ceppi, Ian James, Max Hasmann, John Crown, Andrés Cervantes, Martin Weisser, Birgit Bossenmaier
Bidirectional cross talk between members of the human epidermal growth factor family of receptors (HER) and the estrogen receptor (ER) is believed to underlie resistance mechanisms that develop in response to treatment with anti-HER agents and endocrine therapy. We investigated the interaction between HER2, HER3 and the ER in vitro using human embryonic kidney cells transfected with human HER2, HER3, and ERα. We also investigated the additive efficacy of combination regimens consisting of anti-HER3 (lumretuzumab), anti-HER2 (pertuzumab), and endocrine (fulvestrant) therapy in vivo...
2017: PloS One
https://www.readbyqxmd.com/read/28490975/comparison-of-transepithelial-resistance-measurement-techniques-chopsticks-vs-endohm
#15
Rebecca A Sheller, Maria E Cuevas, Maria C Todd
BACKGROUND: TER measurements across confluent cellular monolayers provide a useful indication of TJ strength between epithelial and endothelial cells in culture. Having a reliable and accurate method of measuring cell-to-cell adhesion is critical to studies in pathophysiology and cancer metastasis. However, the use of different technical approaches to measure TER has reportedly yielded inconsistent measurements within the same cell lines. METHODS: In the current study, we compared the peak TER values for the MDCK (canine kidney) and MCF-7 (human breast cancer) epithelial cell lines using two common approaches (Chopstick and Endohm) and two types of polymer inserts (PC and PET)...
2017: Biological Procedures Online
https://www.readbyqxmd.com/read/28489662/metastasis-of-a-renal-collecting-duct-adenocarcinoma-to-the-oral-cavity-after-tooth-extraction
#16
Suna Erkilic, Aydin Keskinruzgar, Zehra Bozdag, Omer Gunhan
Metastatic tumors rarely occur in the oral cavity. The most common of the oral metastases are lung cancers in males, and breast and genital cancers in females. The most common primary tumor metastasis to the oral cavity is from the lung, kidney, liver, prostate, and colorectal cancers. The metastatic lesions are similar to oral lesions such as pyogenic granuloma, giant cell lesions, gingival polyps, hemangioma, peripheral fibroma, and adenoid squamous cell carcinoma. Therefore, the diagnosis of primary tumors is challenging...
May 9, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28482466/synthesis-structure-elucidation-and-biological-evaluation-of-triple-bridged-dinuclear-copper-ii-complexes-as-anticancer-and-antioxidant-anti-inflammatory-agents
#17
Z Boulsourani, S Katsamakas, G D Geromichalos, V Psycharis, C P Raptopoulou, D Hadjipavlou-Litina, E Yiannaki, C Dendrinou-Samara
Seeking for copper based metallo-therapeutics, three triple bridged dinuclear copper(II) complexes [Cu2(μ2-L2)(bipy)2(μ2-OH)(μ2-H2O)](NO3)2·H2O (1·H2O), [Cu2(μ2-L2)(bipy)2(μ2-OH)(μ2-NO3)](NO3)·0.6MeOH·0.4H2O (2·0.6MeOH·0.4H2O) and [Cu2(μ2-L1)(bipy)2(μ2-OH)(μ2-NO3)(H2O)](NO3)·2H2O (3·2H2O) where L2=2-thiophene acetato, L1=2-thiophene carboxylato and bipy=2,2'-bipyridine were synthesized and structurally characterized. The complexes were subjected in vitro to a pharmacochemical evaluation for their antioxidant/anti-inflammatory activity, cytotoxicity and efficacy against human ovarian, lung, colon, breast, kidney and cervical cancer cell lines along with non tumor human lung and breast cell lines...
July 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28477342/estimating-patient-dose-from-ct-exams-that-use-automatic-exposure-control-development-and-validation-of-methods-to-accurately-estimate-tube-current-values
#18
Kyle McMillan, Maryam Bostani, Christopher H Cagnon, Lifeng Yu, Shuai Leng, Cynthia H McCollough, Michael F McNitt-Gray
PURPOSE: The vast majority of body CT exams are performed with automatic exposure control (AEC), which adapts the mean tube current to the patient size and modulates the tube current either angularly, longitudinally or both. However, most radiation dose estimation tools are based on fixed tube current scans. Accurate estimates of patient dose from AEC scans require knowledge of the tube current values, which is usually unavailable. The purpose of this work was to develop and validate methods to accurately estimate the tube current values prescribed by one manufacturer's AEC system to enable accurate estimates of patient dose...
May 5, 2017: Medical Physics
https://www.readbyqxmd.com/read/28473246/towards-therapeutic-drug-monitoring-of-everolimus-in-cancer-results-of-an-exploratory-study-of-exposure-effect-relationship
#19
Marine Deppenweiler, Sabrina Falkowski, Franck Saint-Marcoux, Caroline Monchaud, Nicolas Picard, Marie-Laure Laroche, Nicole Tubiana-Mathieu, Laurence Venat-Bouvet, Pierre Marquet, Jean-Baptiste Woillard
INTRODUCTION: Therapeutic drug monitoring (TDM) of everolimus is not performed in oncology and no trough level (C0) target has been yet defined. The aim of this study was to determine everolimus C0 target for toxicity and efficacy. MATERIALS AND METHODS: Clinical, biological and radiologic data from 54 patients were collected. Toxicity event was defined by termination, temporary interruption and/or dose reduction of everolimus while efficacy was defined as progression-free survival...
May 1, 2017: Pharmacological Research: the Official Journal of the Italian Pharmacological Society
https://www.readbyqxmd.com/read/28463961/herpes-zoster-risk-after-21-specific-cancers-population-based-case-control-study
#20
Erik Hansson, Harriet J Forbes, Sinéad M Langan, Liam Smeeth, Krishnan Bhaskaran
BACKGROUND: Some malignancies are known to be associated with increased risk of herpes zoster, but little is known about how associations between cancer and subsequent zoster risk vary by cancer site, by time since cancer diagnosis, and by age. METHODS: An age-, sex-, calendar time-, and practice-matched case-control study, nested in the broadly UK representative Clinical Practice Research Datalink (CPRD) primary care database, was analysed using conditional logistic regression to estimate the association between 21 of the most common specific malignancies and subsequent zoster risk...
May 2, 2017: British Journal of Cancer
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