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https://www.readbyqxmd.com/read/29138989/sexual-function-and-sex-hormones-in-breast-cancer-patients
#1
Antonio Gambardella, Daniela Esposito, Giacomo Accardo, Marianna Taddeo, Antonietta Letizia, Rossella Tagliafierro, Katherine Esposito, Daniela Pasquali
PURPOSE: Breast cancer patients (BCP) are at risk of female sexual dysfunction (FSD). Our aim was to clarify the effects of treatment strategies, and steroid hormones levels on FSD. METHODS: We enrolled 136 BCP (46.9 ± 0.8 years), and 122 completed questionnaires. BCP were divided into four groups: 22 women with advanced breast cancer on neoadjuvant therapy (NAT), 48 on adjuvant therapy (AT), 30 taking hormonal therapy (HT) and 22 with metastatic cancer on first line chemotherapy (FLT)...
November 14, 2017: Endocrine
https://www.readbyqxmd.com/read/29138826/mir%C3%A2-660%C3%A2-5p-is-associated-with-cell-migration-invasion-proliferation-and-apoptosis-in-renal-cell-carcinoma
#2
Tao He, Peijie Chen, Lu Jin, Jia Hu, Yifan Li, Liang Zhou, Shangqi Yang, Xiangming Mao, Yaoting Gui, Yun Chen, Yongqing Lai
Renal cell carcinoma (RCC) is a common malignant tumor of the urinary system with poor prognosis. microRNAs (miRNAs) are a class of small, non‑coding RNA molecules that serve important roles in biological and pathological processes in several types of human tumors. miRNA (miR)‑660‑5p is dysregulated in many human cancers; however, its role in renal cell carcinoma is currently unclear. In the present study, reverse transcription‑quantitative polymerase chain reaction was performed to examine the expression levels of miR‑660‑5p in RCC tissues and paired normal adjacent tissues (NATs)...
November 14, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29137110/neobomb1-a-grpr-antagonist-for-breast-cancer-theragnostics-first-results-of-a-preclinical-study-with-67-ga-neobomb1-in-t-47d-cells-and-tumor-bearing-mice
#3
Aikaterini Kaloudi, Emmanouil Lymperis, Athina Giarika, Simone Dalm, Francesca Orlandi, Donato Barbato, Mattia Tedesco, Theodosia Maina, Marion de Jong, Berthold A Nock
The GRPR-antagonist-based radioligands [(67/68)Ga/(111)In/(177)Lu]NeoBOMB1 have shown excellent theragnostic profiles in preclinical prostate cancer models, while [(68)Ga]NeoBOMB1 effectively visualized prostate cancer lesions in patients. We were further interested to explore the theragnostic potential of NeoBOMB1 in GRPR-positive mammary carcinoma, by first studying [(67)Ga]NeoBOMB1 in breast cancer models; Methods: We investigated the profile of [(67)Ga]NeoBOMB1, a [(68)Ga]NeoBOMB1 surrogate, in GRPR-expressing T-47D cells and animal models; Results: NeoBOMB1 (IC50s of 2...
November 11, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/29135248/biomimetics-of-nife-hydrogenase-nickel-or-iron-centered-proton-reduction-catalysis
#4
Hao Tang, Michael B Hall
The [NiFe] hydrogenase (H2ase) has been characterized in the Ni-R state with a hydride bridging between Fe and Ni but displaced toward the Ni. In nearly all of the synthetic Ni-R models reported so far, the hydride ligand is either displaced toward Fe, or terminally bound to Fe. Recently, a structural and functional [NiFe]-H2ase mimic (Nat. Chem. 2016, 8, 1054-1060) was reported to produce H2 catalytically via EECC mechanism through a Ni-centered hydride intermediate like the enzyme. Here, a comprehensive DFT study shows a much lower energy route via an E[ECEC] mechanism through an Fe-centered hydride intermediate...
November 14, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/29131937/an-innovative-in-situ-ball-mill-for-x-ray-diffraction
#5
Voraksmy Ban, Yolanda Sadikin, Michael Lange, Nikolay A Tumanov, Yaroslav Filinchuk, Radovan Černý, Nicola P M Casati
The renewed interest of mechanochemistry as an eco-friendly synthetic route has inspired original methodologies to probe reactions, with the aim to rationalize unknown mechanisms. Recently, Friščić et al. [Nat Chem 2013, 5, 66-73] monitored the progress of milling reactions by synchrotron X-ray Powder Diffraction (XRPD). For the first time, it was possible to acquire directly information during a mechanochemical process. This new methodology is still in its early stages and its development will definitively transform the fundamental understanding of mechanochemistry...
November 13, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/29124333/assessment-of-hepatotoxicity-of-first-line-anti-tuberculosis-drugs-on-wistar-rats
#6
Radhika Sharma, Ramneek Kaur, Manishi Mukesh, Vijay L Sharma
Adverse drug reactions are inevitable risk factors associated with use of modern medicines. First-line anti-tuberculosis drugs contribute to diverse pathological complications, and hepatotoxicity is one of them. This study investigated the effects of anti-TB drugs in combination (rifampicin [RIF] + isoniazid [INH] + pyrazinamide [PZA]) on Wistar rats. Rats were grouped as control group (saline), toxicant group that was given (30.85 mg/kg b.wt., INH + 61.7 mg/kg b.wt., RIF + 132.65 mg/kg b.wt. PZA in dosage extrapolated from dose that is used in human)...
November 9, 2017: Naunyn-Schmiedeberg's Archives of Pharmacology
https://www.readbyqxmd.com/read/29114157/a-study-on-the-occurrence-of-pinworms-in-the-hindgut-of-periplaneta-americana
#7
Jayati Ghosh
American cockroach, Periplaneta americana harbours pinworms in their gut. In the present study, 88 host cockroaches were dissected and the number of adult females of each pinworm species was recorded from Barasat, North 24 Parganas, West Bengal. Three species of Oxyurid nematodes were found: Hammerschmidtiella diesingi (Hammerschmidt, Helminthologische Beiträge. Isis (oken), Leipz 5:351-358, 1838), Leidynema appendiculatum (Leidy in Proc Acad Natl Sci Phila 5:100-102, 1850) and Thelastoma sp. (Leidy in Proc Nat Acad Sci Phila 4:30, 1849)...
December 2017: Journal of Parasitic Diseases: Official Organ of the Indian Society for Parasitology
https://www.readbyqxmd.com/read/29113659/a-comparative-study-of-neoadjuvant-treatment-with-gemcitabine-plus-nab-paclitaxel-versus-surgery-first-for-pancreatic-adenocarcinoma
#8
Benedetto Ielpo, Riccardo Caruso, Hipolito Duran, Eduardo Diaz, Isabel Fabra, Luis Malavé, Valentina Ferri, Rafael Alvarez, Antonio Cubillo, Carlos Plaza, Sara Lazzaro, Denis Kalivaci, Yolanda Quijano, Emilio Vicente
INTRODUCTION: Neoadjuvant treatment has been reported to prolong survival in patients with potentially resectable pancreatic adenocarcinoma (PA). However, there are currently limited clinical results available using nab-paclitaxel and gemcitabine in PA. This paper compares the oncological results of patients affected by potentially resectable PA who underwent surgery first (SF) versus surgery following neoadjuvant treatment (NAT). METHODS: This is an observational, comparative study whereby data were abstracted from a prospective database of patients affected by PA from 2007 to 2016...
December 2017: Surgical Oncology
https://www.readbyqxmd.com/read/29104707/color-comparisons-and-interpersonal-variation
#9
Nat Hansen
An important challenge to color objectivists, who hold that statements concerning color are made true or false by objective (non-subject-involving) facts, is the argument from interpersonal variation in where normal observers locate the unique hues. Recently, an attractive objectivist response to the argument has been proposed that draws on the semantics of gradable adjectives and which does not require defending the idea that there is a single correct location for each of the unique hues (Gómez-Torrente (2016) Noûs 50(1): 3-40),...
2017: Review of Philosophy and Psychology
https://www.readbyqxmd.com/read/29104280/is-kidney-donor-profile-index-kdpi-valid-for-hepatitis-c-aviremic-kidneys
#10
Lena Sibulesky, Catherine E Kling, Ajit P Limaye, Christopher K Johnson
The Kidney Donor Risk Index (KDRI) and Kidney Donor Profile Index (KDPI) assist clinicians with the selection of deceased donor kidneys. This scoring system is based on 10 donor factors including Hepatitis C virus (HCV) status from serological or NAT testing. The donor HCV status (i.e., having either a positive hepatitis C antibody (Ab) or nucleic acid testing (NAT) result) increases the hazard ratio for graft failure by 1.27 and the KDPI by approximately 20%. Whether this increase in KDPI is a true reflection of graft quality for HCV seropositive but not viremic donors is unknown...
November 6, 2017: Annals of Transplantation: Quarterly of the Polish Transplantation Society
https://www.readbyqxmd.com/read/29103863/impact-of-antiplatelets-and-anticoagulants-on-the-prognosis-of-intracerebral-hemorrhage
#11
Masaaki Hokari, Daisuke Shimbo, Katsuyuki Asaoka, Kazuki Uchida, Koji Itamoto
BACKGROUND: Intracerebral hemorrhage (ICH) associated with antithrombotic therapy (AT) is becoming more common as the use of those medications increases in the aging population. METHODS: This study included 490 consecutive patients hospitalized for nontraumatic ICH in a single center during an 8-year period, which was subdivided into former (2008-2011) and latter (2012-2015). Patients were classified into those with no antithrombotic drugs (NATs) and those with AT...
November 2, 2017: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/29103146/rna-cytosine-methyltransferase-nsun3-regulates-embryonic-stem-cell-differentiation-by-promoting-mitochondrial-activity
#12
Lukas Trixl, Thomas Amort, Alexandra Wille, Manuela Zinni, Susanne Ebner, Clara Hechenberger, Felix Eichin, Hanna Gabriel, Ines Schoberleitner, Anming Huang, Paolo Piatti, Roxana Nat, Jakob Troppmair, Alexandra Lusser
Chemical modifications of RNA have been attracting increasing interest because of their impact on RNA fate and function. Therefore, the characterization of enzymes catalyzing such modifications is of great importance. The RNA cytosine methyltransferase NSUN3 was recently shown to generate 5-methylcytosine in the anticodon loop of mitochondrial tRNA(Met). Further oxidation of this position is required for normal mitochondrial translation and function in human somatic cells. Because embryonic stem cells (ESCs) are less dependent on oxidative phosphorylation than somatic cells, we examined the effects of catalytic inactivation of Nsun3 on self-renewal and differentiation potential of murine ESCs...
November 4, 2017: Cellular and Molecular Life Sciences: CMLS
https://www.readbyqxmd.com/read/29096389/detection-and-differentiation-of-hiv-2-using-the-point-of-care-alere-q-hiv-1-2-detect-nucleic-acid-test
#13
Ming Chang, Katrin Steinmetzer, Dana N Raugi, Robert A Smith, Selly Ba, Fatima Sall, Moussa Seydi, Alassane Niang, ElHadji Ibrahima Sall, Ousseynou Cisse, Katja Rödel, Robert W Coombs, Geoffrey S Gottlieb
BACKGROUND: The Alere q HIV-1/2 Detect test (Alere Detect) is a rapid point-of-care (POC) nucleic acid test (NAT) that can detect and differentiate HIV-1 and HIV-2 in 25-μL whole blood or plasma samples. The Alere Detect test has been validated for early infant diagnosis of HIV-1 infection, and it is the only POC NAT device currently known to detect HIV-2, which is endemic in West Africa. OBJECTIVES: To evaluate the sensitivity detecting HIV-2 RNA and the differential performance of the Alere Detect...
October 24, 2017: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
https://www.readbyqxmd.com/read/29095441/identification-of-rna-binding-domains-of-rna-binding-proteins-in-cultured-cells-on-a-system-wide-scale-with-rbdmap
#14
Alfredo Castello, Christian K Frese, Bernd Fischer, Aino I Järvelin, Rastislav Horos, Anne-Marie Alleaume, Sophia Foehr, Tomaz Curk, Jeroen Krijgsveld, Matthias W Hentze
This protocol is an extension to: Nat. Protoc. 8, 491-500 (2013); doi:10.1038/nprot.2013.020; published online 14 February 2013RBDmap is a method for identifying, in a proteome-wide manner, the regions of RNA-binding proteins (RBPs) engaged in native interactions with RNA. In brief, cells are irradiated with UV light to induce protein-RNA cross-links. Following stringent denaturing washes, the resulting covalently linked protein-RNA complexes are purified with oligo(dT) magnetic beads. After elution, RBPs are subjected to partial proteolysis, in which the protein regions still bound to the RNA and those released to the supernatant are separated by a second oligo(dT) selection...
December 2017: Nature Protocols
https://www.readbyqxmd.com/read/29092425/the-size-of-the-sync-basin-revisited
#15
Robin Delabays, Melvyn Tyloo, Philippe Jacquod
In dynamical systems, the full stability of fixed point solutions is determined by their basins of attraction. Characterizing the structure of these basins is, in general, a complicated task, especially in high dimensionality. Recent works have advocated to quantify the non-linear stability of fixed points of dynamical systems through the relative volumes of the associated basins of attraction [Wiley et al., Chaos 16, 015103 (2006) and Menck et al. Nat. Phys. 9, 89 (2013)]. Here, we revisit this issue and propose an efficient numerical method to estimate these volumes...
October 2017: Chaos
https://www.readbyqxmd.com/read/29074339/effect-of-deep-brain-stimulation-of-the-ventromedial-prefrontal-cortex-on-the-noradrenergic-system-in-rats
#16
Sonia Torres-Sanchez, Laura Perez-Caballero, Juan A Mico, Pau Celada, Esther Berrocoso
BACKGROUND: Deep Brain Stimulation (DBS) of the subgenual cingulate cortex (SCC) is a promising therapeutic alternative to treat resistant major depressive disorder. In preclinical studies, DBS of the ventromedial prefrontal cortex (vmPFC, the rodent SCC correlate) provokes an antidepressant-like effect, along with changes in noradrenaline levels at the site of stimulation. Hence, DBS appears to activate the noradrenergic-locus coeruleus (LC) system. OBJECTIVE/HYPOTHESIS: The aim of this study was to evaluate the effect of vmPFC DBS on the electrical activity of noradrenergic LC neurons, cortical oscillations and coherence between both brain areas in male rats...
October 13, 2017: Brain Stimulation
https://www.readbyqxmd.com/read/29071579/passive-smoking-nat2-polymorphism-and-breast-cancer-risk-in-israeli-arab-women-a-case-control-study
#17
Z Regev-Avraham, O Baron-Epel, S K Hammond, L Keinan-Boker
BACKGROUND: The effect of passive smoking (PS) on breast cancer (BC) is controversial, and may be modified by polymorphism of the N-Acetyl-transferase (NAT) 2 enzyme which is involved in tobacco carcinogen metabolism. We aimed to evaluate the relationship between PS and BC by NAT2 variants in Arab-Israeli women, a unique population with low active smoking rates, and high exposure to PS. METHODS: A population-based case-control study was carried out on non-smoking 137 prevalent breast cancer patients and 274 population-based controls, aged 30-70 years...
October 26, 2017: Breast Cancer: the Journal of the Japanese Breast Cancer Society
https://www.readbyqxmd.com/read/29068874/prevalence-of-nonaccidental-trauma-among-children-at-american-college-of-surgeons-verified-pediatric-trauma-centers
#18
David D A Bogumil, Natalie E Demeter, Karen Kay Imagawa, Jeffrey S Upperman, Rita V Burke
BACKGROUND: Child abuse remains a national epidemic that has detrimental effects if unnoticed in the clinical setting. Extreme cases of child abuse, or nonaccidental trauma (NAT), have large financial burdens associated with them due to treatment costs and long-term effects of abuse. Clinicians who have additional training and experience with pediatric trauma are better equipped to detect signs of NAT and have more experience reporting it. This additional training and experience can be measured by using the American College of Surgeons (ACS) Pediatric Trauma verification...
November 2017: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/29065900/grcalculator-an-online-tool-for-calculating-and-mining-dose-response-data
#19
Nicholas A Clark, Marc Hafner, Michal Kouril, Elizabeth H Williams, Jeremy L Muhlich, Marcin Pilarczyk, Mario Niepel, Peter K Sorger, Mario Medvedovic
BACKGROUND: Quantifying the response of cell lines to drugs or other perturbagens is the cornerstone of pre-clinical drug development and pharmacogenomics as well as a means to study factors that contribute to sensitivity and resistance. In dividing cells, traditional metrics derived from dose-response curves such as IC 50 , AUC, and E max , are confounded by the number of cell divisions taking place during the assay, which varies widely for biological and experimental reasons. Hafner et al...
October 24, 2017: BMC Cancer
https://www.readbyqxmd.com/read/29063567/best-paper-selection
#20
(no author information available yet)
Agarwal V, Podchiyska T, Banda JM, Goel V, Leung TI, Minty EP, Sweeney TE, Gyang E, Shah NH. Learning statistical models of phenotypes using noisy labeled training data. J Am Med Inform Assoc 2016;23(6):1166-73 https://academic.oup.com/jamia/article-lookup/doi/10.1093/jamia/ocw028 Harmanci A, Gerstein M. Quantification of private information leakage from phenotype-genotype data: linking attacks. Nat Methods 2016;13(3):251-6 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4834871/ Pfiffner PB, Pinyol I, Natter MD, Mandl KD...
August 2017: Yearbook of Medical Informatics
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