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https://www.readbyqxmd.com/read/27909713/age-associated-differences-in-transporter-gene-expression-in-kidneys-of-male-rats
#1
Yong-Ji Xu, Yang Wang, Yuan-Fu Lu, Shang-Fu Xu, Qin Wu, Jie Liu
Kidney transporters are involved in the secretion and reabsorption of endogenous and exogenous molecules. Numerous factors may influence their expression and affect drug disposition, efficacy and toxicity. The present study aimed to examine the development‑ and age‑associated variations in primary renal transporters in rats, including 6 uptake transporters: Organic anion transporter (OAT) 1 and 3, organic cation transporter (OCT) 1, 2 and 3 and organic anion‑transporting polypeptide (OATP) 4C1, and 6 efflux transporters: Multidrug resistance protein 1 (MDR1), breast cancer resistance protein (BCRP), multidrug resistance‑associated protein (MRP) 2 and 4, and multidrug and toxin extrusion protein (MATE) 1 and 2‑K...
November 28, 2016: Molecular Medicine Reports
https://www.readbyqxmd.com/read/27908924/excess-weight-as-a-risk-factor-common-to-many-cancer-sites-words-of-caution-when-interpreting-meta-analytic-evidence
#2
Melina Arnold, Andrew G Renehan, Graham A Colditz
For over a decade, excess body weight, commonly categorized as overweight (body mass index, BMI: 25.0 to 29.9 kg/m2) and obesity (BMI: ≥ 30 kg/m2) has been an established incidence risk factor for several adult cancers (1). For 2012, the burden of disease attributed to elevated BMI was estimated as nearly half-million new cancers worldwide, making this the third highest ranked cancer risk factor globally after smoking and infections (ranked second in most western populations) and an important public health problem (2, 3)...
December 1, 2016: Cancer Epidemiology, Biomarkers & Prevention
https://www.readbyqxmd.com/read/27900057/in-vitro-and-in-vivo-inhibition-of-tumor-cell-viability-by-combined-dihydroartemisinin-and-doxorubicin-treatment-and-the-underlying-mechanism
#3
Xiang Tai, Xiao-Bei Cai, Zhang Zhang, Rui Wei
The natural extract artemisinin and its derivatives have good anticancer activity. The present study aimed to investigate the in vitro inhibitory effects of combined dihydroartemisinin (DHA) and doxorubicin (DOX) treatment on a variety of tumor cell lines (HeLa, OVCAR-3, MCF-7, PC-3 and A549), as well as the underlying mechanisms. In addition, the in vivo effects of DHA and DOX were evaluated using a mouse HeLa tumor model. The HeLa, OVCAR-3, MCF-7, PC-3 and A549 cells were treated with a combination of DHA and DOX, and the effect on cell viability was detected by Cell Counting kit-8...
November 2016: Oncology Letters
https://www.readbyqxmd.com/read/27891445/breast-cancer-with-synchronous-renal-cell-carcinoma-a-rare-presentation
#4
Ravi Arjunan, Durgesh Kumar, K V Veerendra Kumar, C S Premlatha
Primary cancer arising from multiple organs is a well known fact. Synchronous tumours have been most commonly associated with kidney cancer. Bladder, prostate, colorectal and lung cancer are the most common synchronous primaries with Renal Cell Carcinoma (RCC) identified till date. We found metachronous tumours of breast with RCC in literature search which included both metastatic tumours as well second primaries. Overall, 25 cases of metastatic breast tumours and eight cases of second primary in previously treated RCC have been reported in the literature...
October 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/27887573/in-vitro-function-of-upstream-visfatin-polymorphisms-that-are-associated-with-adverse-cardiometabolic-parameters-in-obese-children
#5
Delicia Shu Qin Ooi, Siong Gim Ong, Chew Kiat Heng, Kah Yin Loke, Yung Seng Lee
BACKGROUND: Visfatin is an adipokine associated with glucose and lipid metabolism. We previously reported two visfatin upstream single nucleotide polymorphisms (SNPs), c.-3187G > A (rs11977021) and c.-1537C > T (rs61330082), which were in perfect linkage disequilibrium, in a Singaporean cohort of severely obese children and are associated with visfatin level and adverse cardiometabolic parameters. We aim to functionally characterize the effect of c.-3187G > A and c...
November 25, 2016: BMC Genomics
https://www.readbyqxmd.com/read/27865131/evaluation-of-cellular-uptake-cytotoxicity-and-cellular-ultrastructural-effects-of-heteroleptic-oxidovanadium-iv-complexes-of-salicylaldimines-and-polypyridyl-ligands
#6
Gonzalo Scalese, Isabel Correia, Julio Benítez, Santiago Rostán, Fernanda Marques, Filipa Mendes, António Pedro Matos, João Costa Pessoa, Dinorah Gambino
Searching for prospective vanadium-based drugs for cancer treatment, a new series of structurally related [V(IV)O(L-2H)(NN)] compounds (1-8) was developed. They include a double deprotonated salicylaldimine Schiff base ligand (L-2H) and different NN-polypyridyl co-ligands having DNA intercalating capacity. Compounds were characterized in solid state and in solution. EPR spectroscopy suggests that the NN ligands act as bidentate and bind through both nitrogen donor atoms in an axial-equatorial mode. The cytotoxicity was evaluated in human tumoral cells (ovarian A2780, breast MCF7, prostate PC3)...
November 9, 2016: Journal of Inorganic Biochemistry
https://www.readbyqxmd.com/read/27859423/from-obesity-to-cancer-a-review-on-proposed-mechanisms
#7
REVIEW
Zoya Tahergorabi, Majid Khazaei, Mitra Moodi, Elham Chamani
Nowadays, obesity is considered as a serious and growing global health problem. It is documented that the overweight and obesity are major risk factors for a series of noncommunicable diseases, and in recent years, the obesity-cancer link has received much attention. Numerous epidemiological studies have shown that obesity is associated with increased risk of several cancer types, including colon, breast, endometrium, liver, kidney, esophagus, gastric, pancreatic, gallbladder, and leukemia, and can also lead to poorer treatment...
November 9, 2016: Cell Biochemistry and Function
https://www.readbyqxmd.com/read/27833659/identification-of-activated-enhancers-and-linked-transcription-factors-in-breast-prostate-and-kidney-tumors-by-tracing-enhancer-networks-using-epigenetic-traits
#8
Suhn Kyong Rhie, Yu Guo, Yu Gyoung Tak, Lijing Yao, Hui Shen, Gerhard A Coetzee, Peter W Laird, Peggy J Farnham
BACKGROUND: Although technological advances now allow increased tumor profiling, a detailed understanding of the mechanisms leading to the development of different cancers remains elusive. Our approach toward understanding the molecular events that lead to cancer is to characterize changes in transcriptional regulatory networks between normal and tumor tissue. Because enhancer activity is thought to be critical in regulating cell fate decisions, we have focused our studies on distal regulatory elements and transcription factors that bind to these elements...
2016: Epigenetics & Chromatin
https://www.readbyqxmd.com/read/27831506/causes-of-death-among-cancer-patients
#9
N G Zaorsky, T M Churilla, B L Egleston, S G Fisher, J A Ridge, E M Horwitz, Je Meyer Md
BACKGROUND: The purpose of our study was to characterize the causes of death among cancer patients as a function of objectives: (I) calendar year, (II) patient age, and (III) time after diagnosis. PATIENTS AND METHODS: US death certificate data in SEER Stat 8.2.1 were used to categorize cancer patient death as being due to index-cancer, non-index-cancer, and non-cancer cause from 1973 to 2012. In addition, data were characterized with standardized mortality ratios (SMRs), which provide the relative risk of death compared to all persons...
November 9, 2016: Annals of Oncology: Official Journal of the European Society for Medical Oncology
https://www.readbyqxmd.com/read/27822324/sonographically-unusual-breast-carcinomas-2-case-reports
#10
Gozde Arslan, Levent Celik
BACKGROUND: For infiltrative breast lesions; sonography might not always be as helpful as mammography and MRI (magnetic resonance imaging). For higher sensitivity and specificity, these 3 imaging methods should be carried out together. Radiologists should be aware of the patient's history and complaints. Patients who have a specific history like a long-term drug treatment or a palpable tumour should be approached differently. CASE REPORT: We would like to present 2 cases with atypical sonographic findings...
2016: Polish Journal of Radiology
https://www.readbyqxmd.com/read/27814565/growth-inhibitory-effect-of-paratocarpin-e-a-prenylated-chalcone-isolated-from-euphorbia-humifusa-wild-by-induction-of-autophagy-and-apoptosis-in-human-breast-cancer-cells
#11
Suyu Gao, Dejuan Sun, Guan Wang, Jin Zhang, Yingnan Jiang, Guoyu Li, Ke Zhang, Lei Wang, Jian Huang, Lixia Chen
Five flavones, including four flavonoids and one prenylated chalcone (paratocarpin E), were isolated from E. humifusa. and their chemical structures were established by spectroscopic analyses. We assessed the efficacy of these compounds against the growth of human breast cancer, leukemic, kidney cancer cell lines. Among them, paratocarpin E showed significant cytotoxicity against these cancer cell lines with an IC50 of 19.6μM on the growth of MCF-7 cells. Paratocarpin E treatment of MCF-7 cells resulted in typical apoptotic features via increasing expression of activated caspase-8 and -9 and PARP cleavage...
October 25, 2016: Bioorganic Chemistry
https://www.readbyqxmd.com/read/27810353/pyrrolopyrimidine-derivatives-and-purine-analogs-as-novel-activators-of-multidrug-resistance-associated-protein-1-mrp1-abcc1
#12
Sven Marcel Schmitt, Katja Stefan, Michael Wiese
Multidrug resistance (MDR) is the main cause of diminished success in cancer chemotherapy. ABC transport proteins are considered to be one important factor of MDR. Besides P-glycoprotein (P-gp, ABCB1) and Breast Cancer Resistance Protein (BCRP, ABCG2), Multidrug Resistance-associated Protein 1 (MRP1, ABCC1) is associated with non-response to chemotherapy in different cancers. While considerable effort was spent in overcoming MDR during the last two decades, almost nothing is known with respect to activators of transport proteins...
October 31, 2016: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/27807828/anxa7-gtpase-as-tumor-suppressor-mechanisms-and-therapeutic-opportunities
#13
Ximena Leighton, Ofer Eidelman, Catherine Jozwik, Harvey B Pollard, Meera Srivastava
Chromosomal abnormalities, including homozygous deletions and loss of heterozygosity at 10q, are commonly observed in most human tumors, including prostate, breast, and kidney cancers. The ANXA7-GTPase is a tumor suppressor, which is frequently inactivated by genomic alterations at 10q21. In the last few years, considerable amounts of data have accumulated describing inactivation of ANXA7-GTPase in a variety of human malignancies and demonstrating the tumor suppressor potential of ANXA7-GTPase. ANXA7-GTPase contains a calcium binding domain that classifies it as a member of the annexin family...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/27777040/uterine-leiomyosarcoma-metastatic-to-thyroid-shown-by-18-f-fdg-pet-ct-imaging
#14
M Gauthé, N Testart Dardel, C Nascimento, M Trassard, A Banal, J-L Alberini
About one third of focal thyroid uptakes in a fluorodeoxyglucose (FDG) positron emission tomography/computerized tomography (PET/CT) study are malignant, the most frequent histological type being papillary carcinoma. Metastases to the thyroid account for approximately 7.5% of thyroid malignancies and come mainly from kidney, lung, head and neck, and breast cancers. We report the case of a 64-year-old woman presenting a fast growing thyroid nodule whose primitive or metastatic origin was not obvious, for which (18)F-FDG PET/CT helped in the diagnostic process and in the later management of the patient...
October 21, 2016: Revista Española de Medicina Nuclear e Imagen Molecular
https://www.readbyqxmd.com/read/27775791/association-between-irisin-and-major-chronic-diseases-a-review
#15
M C Gouveia, J P Vella, F R Cafeo, F L Affonso Fonseca, M R Bacci
OBJECTIVE: Irisin is a muscle-secreted protein released into the circulation by cleavage of fibronectin type III domain containing protein 5(FNDC5). Since its discovery in 2012, it has been the subject of many researches due to its physiological role. It is believed that understanding irisin's function may be the key to comprehend many diseases and their development. The aim of this study is to perform a systematic review in order to establish whether there is an association of irisin's levels with obesity, diabetes mellitus, non-alcoholic steatohepatitis, chronic kidney disease and cancer in terms of prognosis...
October 2016: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/27773784/treatment-of-brain-metastases-in-the-modern-genomic-era
#16
Ibiayi Dagogo-Jack, Corey M Gill, Daniel P Cahill, Sandro Santagata, Priscilla K Brastianos
Development of brain metastasis (BM) portends a dismal prognosis for patients with cancer. Melanomas and carcinomas of the lung, breast, and kidney are the most common malignancies to metastasize to the brain. Recent advances in molecular genetics have enabled the identification of actionable, clinically relevant genetic alterations within primary tumors and their corresponding metastases. Adoption of genotype-guided treatment strategies in the management of systemic malignancy has resulted in dramatic and durable responses...
October 20, 2016: Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/27773744/fhit-and-wwox-loss-associated-genome-instability-a-genome-caretaker-one-two-punch
#17
Morgan S Schrock, Jenna R Karras, Matthew J Guggenbiller, Teresa Druck, Bahadir Batar, Kay Huebner
Expression of Fhit and Wwox protein is frequently lost or reduced in many human cancers. In this report, we provide data that further characterizes the molecular consequences of Fhit loss in the initiation of DNA double-strand breaks (DSBs), and of Wwox loss in altered repair of DSBs. We show that loss of Fhit initiates mild genome instability in early passage mouse kidney cells, confirming that DNA damage associated with Fhit-deficiency is not limited to cancer cells. We also demonstrate that the cause of Fhit-deficient DSBs: thymidine deficiency-induced replication stress, can be resolved with thymidine supplementation in early passage mouse kidney cells before extensive genome instability occurs...
September 26, 2016: Advances in Biological Regulation
https://www.readbyqxmd.com/read/27770953/superparamagnetic-iron-oxide-nanoparticles-conjugated-with-folic-acid-for-dual-target-specific-drug-delivery-and-mri-in-cancer-theranostics
#18
Yinping Huang, Kaili Mao, Baolin Zhang, Yingzheng Zhao
Monodispersed SPIONs (superparamagnetic iron oxide nanoparticles) co-coated with PEG and PEI polymers were prepared by an improved polyol method. To accomplish cancer-specific targeting properties, FA (folic acid) was then modified on the SPIONs via EDC/NHS method (FA-SPIONs). Doxorubicin (DOX) as an example anticancer drug was loaded within FA-SPIONs (DOX@FA-SPIONs), the DOX release rate of DOX@FA-SPIONs was much high in low pH PBS. The SPIONs, FA-SPIONs and DOX@FA-SPIONs with mean hydrodynamic diameters of 23, 40 and 67nm, respectively, performed excellent colloidal stability in PBS...
January 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/27770838/thyroid-gland-metastasis-from-cancer-of-the-uterine-cervix-an-extremely-rare-case-report
#19
Suleyman Utku Celik, Dilara Besli, Serpil Dizbay Sak, Volkan Genc
The thyroid gland is a relatively uncommon site for a metastatic disease, although it is richly supplied with blood. The metastases may originate from various primary sites, mainly kidney, lung, head and neck, and breast. Thyroid metastasis from cervical carcinomas is extremely rare; and only a few cases have been previously reported in the literature. In patient with thyroid nodules and an oncological history, the possibility of thyroid metastasis should be seriously considered. Despite the rarity of the metastasis of cervical carcinoma to the thyroid, it is difficult to say appropriate treatment approach for these lesions...
2016: Acta Medica (Hradec Králové)
https://www.readbyqxmd.com/read/27765857/assessment-of-tryptophan-uptake-and-kinetics-using-1-2-18f-fluoroethyl-l-tryptophan-and-%C3%AE-11c-methyl-l-tryptophan-pet-imaging-in-mice-implanted-with-patient-derived-brain-tumor-xenografts
#20
Sharon K Michelhaugh, Otto Muzik, Anthony R Guastella, Neil V Klinger, Lisa A Polin, Hancheng Cai, Yanchun Xin, Thomas J Mangner, Shaohui Zhang, Csaba Juhasz, Sandeep Mittal
: Abnormal tryptophan metabolism via the kynurenine pathway (KP) is involved in the pathophysiology of a variety of human diseases including cancers. α-[(11)C]-methyl-L-tryptophan ((11)C-AMT) positron emission tomography (PET) imaging demonstrated increased tryptophan uptake and trapping in epileptic foci and brain tumors, but the short half-life of (11)C limits its widespread clinical application. Recent in vitro studies suggested that the novel radiotracer 1-(2-[(18)F]fluoroethyl)-L-tryptophan ((18)F-FETrp) may be useful to assess tryptophan metabolism via the KP...
October 20, 2016: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
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