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https://www.readbyqxmd.com/read/28428927/limitations-of-personalized-medicine-and-gene-assays-for-breast-cancer
#1
David Tiberi, Laura Masucci, Daniel Shedid, Isabelle Roy, Toni Vu, Erica Patocskai, André Robidoux, Philip Wong
Adjuvant systemic treatments reduce the risk of breast cancer recurrence following the local treatment of primary stage I-III breast cancers. For patients with hormone-positive breast cancers receiving hormonal therapy, the risk of distant recurrence is under 20% and therefore, many patients may potentially be spared of chemotherapy. Consequently, several molecular signatures based on gene expression were developed to better determine which breast cancer patients would benefit from chemotherapy. We present the case of a 62-year-old woman diagnosed with an early stage hormone receptor-positive breast cancer that was treated with a partial mastectomy...
March 17, 2017: Curēus
https://www.readbyqxmd.com/read/28419534/endocrine-imbalance-associated-with-proteome-changes-in-diabetes
#2
Amr A Sayed, Ahmed M Alhawary, Aboalela Farag, Dina R Johar, Larry H Bernstein
The dynamics of cellular metabolism involves rapid interactions between proteins and nucleotides, proteins and proteins, proteins and mRNA, the action of miRNA, and signaling. These also involve the interactions with respect to the sulfur bond, oxygen radicals that initiate a change in conformation and a chain of events. We review a development in molecular medicine that is a very promising work in progress. We also review the current and future research methods involving mitochondria. Long-term effects of diabetes include glycation of proteins, e...
April 17, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28418441/an-integrated-anti-arrhythmic-target-network-of-a-chinese-medicine-compound-wenxin-keli-revealed-by-combined-machine-learning-and-molecular-pathway-analysis
#3
Taiyi Wang, Ming Lu, Qunqun Du, Xi Yao, Peng Zhang, Xiaonan Chen, Weiwei Xie, Zheng Li, Yuling Ma, Yan Zhu
Wenxin Keli (WK), a Chinese patent medicine, is known to be effective against cardiac arrhythmias and heart failure. Although a number of electrophysiological findings regarding its therapeutic effect have been reported, the active components and system-level characterizations of the component-target interactions of WK have yet to be elucidated. In the current study, we present the first report of a new protective effect of WK on suppressing anti-arrhythmic-agent-induced arrhythmias. In a model of isolated guinea pig hearts, rapid perfusion of quinidine altered the heart rate and prolonged the Q-T interval...
April 18, 2017: Molecular BioSystems
https://www.readbyqxmd.com/read/28417948/erbb-family-signalling-a-paradigm-for-oncogene-addiction-and-personalized-oncology
#4
REVIEW
Nico Jacobi, Rita Seeboeck, Elisabeth Hofmann, Andreas Eger
ErbB family members represent important biomarkers and drug targets for modern precision therapy. They have gained considerable importance as paradigms for oncoprotein addiction and personalized medicine. This review summarizes the current understanding of ErbB proteins in cell signalling and cancer and describes the molecular rationale of prominent cases of ErbB oncoprotein addiction in different cancer types. In addition, we have highlighted experimental technologies for the development of innovative cancer cell models that accurately predicted clinical ErbB drug efficacies...
April 12, 2017: Cancers
https://www.readbyqxmd.com/read/28417090/role-of-traditional-islamic-and-arabic-plants-in-cancer-therapy
#5
REVIEW
Rizwan Ahmad, Niyaz Ahmad, Atta Abbas Naqvi, Adeeb Shehzad, Mastour Safer Al-Ghamdi
ETHNO PHARMACOLOGICAL RELEVANCE: This review article underlines individual Traditional Islamic and Arabic plant (TAI) and their role in treating cancer. The aim of the study is to specifically evaluate the progress of herbs, Arabic and Islamic traditional herbs in particular, applied in cancer treatment, so far. MATERIALS AND METHODS: Islamic and Arabic plants were selected and identified through different literature survey using "Google scholar", "Web of science", "Scopus" and "PubMed"...
April 2017: Journal of Traditional and Complementary Medicine
https://www.readbyqxmd.com/read/28416241/circulating-tumor-dna-from-bench-to-bedside
#6
Joline S J Lim, Filip Janku, Timothy A Yap
In the era of personalized medicine, tumor sampling is paramount to enable the assessment of actionable molecular aberrations to help rationalize and guide treatment decisions. Longitudinal tracking of such aberrations may also be helpful to detect emerging drug resistance and to allow for timely modifications to ongoing therapies to improve patient outcomes. Nevertheless, tumor tissue sampling involves an invasive procedure with potential risks to patients and involves logistical challenges. As such, other less invasive and safer methods such as blood sampling for molecular profiling has been gaining traction...
March 1, 2017: Current Problems in Cancer
https://www.readbyqxmd.com/read/28410846/initiative-for-molecular-profiling-and-advanced-cancer-therapy-and-challenges-in-the-implementation-of-precision-medicine
#7
Apostolia-Maria Tsimberidou
In the last decade, breakthroughs in technology have improved our understanding of genomic, transcriptional, proteomic, epigenetic aberrations and immune mechanisms in carcinogenesis. Genomics and model systems have enabled the validation of novel therapeutic strategies. Based on these developments, in 2007, we initiated the IMPACT (Initiative for Molecular Profiling and Advanced Cancer Therapy) study, the first personalized medicine program for patients with advanced cancer at The University of Texas MD Anderson Cancer Center...
February 10, 2017: Current Problems in Cancer
https://www.readbyqxmd.com/read/28410618/liquid-biopsy-a-step-forward-towards-precision-medicine-in-urologic-malignancies
#8
REVIEW
Ashley Di Meo, Jenni Bartlett, Yufeng Cheng, Maria D Pasic, George M Yousef
There is a growing trend towards exploring the use of a minimally invasive "liquid biopsy" to identify biomarkers in a number of cancers, including urologic malignancies. Multiple aspects can be assessed in circulating cell-free DNA, including cell-free DNA levels, integrity, methylation and mutations. Other prospective liquid biopsy markers include circulating tumor cells, circulating RNAs (miRNA, lncRNAs and mRNAs), cell-free proteins, peptides and exosomes have also emerged as non-invasive cancer biomarkers...
April 14, 2017: Molecular Cancer
https://www.readbyqxmd.com/read/28404972/distribution-patterns-of-21-gene-recurrence-score-in-980-chinese-estrogen-receptor-positive-her2-negative-early-breast-cancer-patients
#9
Wu Jiayi, Fang Yan, Lin Lin, Fei Xiaochun, Gao Weiqi, Zhu Siji, Zong Yu, Chen Xiaosong, Huang Ou, He Jianrong, Zhu Li, Chen Weiguo, Li Yafen, Shen Kunwei
AIM: The current study aimed to explore the distribution patterns of 21-gene recurrence score (RS) assay in Chinese early breast cancer patients. METHODS: Nine hundred and eighty consecutive estrogen receptor(ER)-positive, human epidermal growth factor receptor 2 (HER2)-negative early breast cancer patients treated at Ruijin Hospital, Shanghai Jiaotong University, School of Medicine from 2009 to 2016 were retrospectively recruited. Reverse transcriptase-polymerase chain reaction (RT-PCR) assay of 21 genes were conducted in paraffin-embedded tumor tissue to calculate the RS...
March 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/28404902/mechanism-of-modulation-through-pi3k-akt-pathway-about-nepeta-cataria-l-s-extract-in-non-small-cell-lung-cancer
#10
Jiaxin Fan, Yongrui Bao, Xiansheng Meng, Shuai Wang, Tianjiao Li, Xin Chang, Guanlin Yang, Tao Bo
Non-small cell lung cancer (NSCLC) is regarded as one of the major intractable diseases, which was cured mainly by chemotherapeutics in the clinical treatment at present. But it is still a vital mission for the current medical and researchers that hunting a natural medicine which have little side effects and high-efficiency against the NSCLC on account of the shortcomings on current drugs. Nepeta cataria L. plays an important role in anti-cancer treatment according to the reports which was recorded in the Chinese Pharmacopoeia of version 2015 and belongs to one of the Traditional Chinese medicine (TCM)...
February 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/28398072/the-reactive-species-interactome-evolutionary-emergence-biological-significance-and-opportunities-for-redox-metabolomics-and-personalized-medicine
#11
Miriam Margherita Cortese-Krott, Anne Koning, Gunter Georg Kuhnle, Peter Nagy, Christopher Bianco, Andreas Pasch, David A Wink, Jon Fukuto, Alan A Jackson, Harry van Goor, Kenneth R Olson, Martin Feelisch
SIGNIFICANCE: Oxidative stress is thought to account for aberrant redox homeostasis and contribute to aging and disease. However, more often than not administration of antioxidants is ineffective, suggesting our current understanding of the underlying regulatory processes is incomplete. Recent Advances. Similar to reactive oxygen and nitrogen species (ROS, RNS), reactive sulfur species (RSS) are now emerging as important signaling molecules, targeting regulatory cysteine redox switches in proteins, affecting gene regulation, ion transport, intermediary metabolism and mitochondrial function...
April 11, 2017: Antioxidants & Redox Signaling
https://www.readbyqxmd.com/read/28396565/a-clinical-and-mechanistic-study-of-topical-borneol-induced-analgesia
#12
Shu Wang, Dan Zhang, Jinsheng Hu, Qi Jia, Wei Xu, Deyuan Su, Hualing Song, Zhichun Xu, Jianmin Cui, Ming Zhou, Jian Yang, Jianru Xiao
Bingpian is a time-honored herb in traditional Chinese medicine (TCM). It is an almost pure chemical with a chemical composition of (+)-borneol and has been historically used as a topical analgesic for millennia. However, the clinical efficacy of topical borneol lacks stringent evidence-based clinical studies and verifiable scientific mechanism. We examined the analgesic efficacy of topical borneol in a randomized, double-blind, placebo-controlled clinical study involving 122 patients with postoperative pain...
April 10, 2017: EMBO Molecular Medicine
https://www.readbyqxmd.com/read/28391026/radiopharmaceuticals-in-the-elderly-cancer-patient-practical-considerations-with-a-focus-on-prostate-cancer-therapy-a-position-paper-from-the-international-society-of-geriatric-oncology-task-force
#13
John O Prior, Silke Gillessen, Manfred Wirth, William Dale, Matti Aapro, Wim J G Oyen
Molecular imaging using radiopharmaceuticals has a clear role in visualising the presence and extent of tumour at diagnosis and monitoring response to therapy. Such imaging provides prognostic and predictive information relevant to management, e.g. by quantifying active tumour mass using positron emission tomography/computed tomography (PET/CT). As these techniques require only pharmacologically inactive doses, age and potential frailty are generally not important. However, this may be different for therapy involving radionuclides because the radiation can impact normal bodily function (e...
April 6, 2017: European Journal of Cancer
https://www.readbyqxmd.com/read/28389139/emerging-molecular-therapeutic-targets-for-cholangiocarcinoma
#14
REVIEW
Sumera Rizvi, Gregory J Gores
Cholangiocarcinomas (CCAs) are diverse epithelial tumors arising from the liver or large bile ducts with features of cholangiocyte differentiation, and are classified anatomically into intrahepatic (iCCA), perihilar (pCCA), and distal CCA (dCCA). Each subtype has distinct risk factors, molecular pathogenesis, therapeutic options, and prognosis. CCA is an aggressive malignancy with a poor overall prognosis and median survival of less than 2 years in patients with advanced disease. Potentially curative surgical treatment options are limited to the subset of patients with early stage disease...
April 4, 2017: Journal of Hepatology
https://www.readbyqxmd.com/read/28388656/integrated-network-analysis-reveals-potentially-novel-molecular-mechanisms-and-therapeutic-targets-of-refractory-epilepsies
#15
Hongwei Chu, Pin Sun, Jiahui Yin, Guangming Liu, Yiwei Wang, Pengyao Zhao, Yizhun Zhu, Xiaohan Yang, Tiezheng Zheng, Xuezhong Zhou, Weilin Jin, Changkai Sun
Epilepsy is a complex neurological disorder and a significant health problem. The pathogenesis of epilepsy remains obscure in a significant number of patients and the current treatment options are not adequate in about a third of individuals which were known as refractory epilepsies (RE). Network medicine provides an effective approach for studying the molecular mechanisms underlying complex diseases. Here we integrated 1876 disease-gene associations of RE and located those genes to human protein-protein interaction (PPI) network to obtain 42 significant RE-associated disease modules...
2017: PloS One
https://www.readbyqxmd.com/read/28386738/manufacturing-of-recombinant-human-follicle-stimulating-hormone-ovaleap-%C3%A2-xm17-comparability-with-gonal-f-%C3%A2-and-performance-consistency
#16
Rainer Winstel, Juergen Wieland, Beate Gertz, Arnd Mueller, Hermann Allgaier
Ovaleap(®) (XM17) is a recombinant human follicle-stimulating hormone to treat infertility by inducing ovulation or controlled ovarian stimulation for assisted reproductive technology (ART) procedures. Ovaleap(®) (follitropin-α) was approved by the European Medicines Agency in 2013 as a biosimilar medicinal product to the reference medicine, Gonal-f(®). Information is often not easily accessible and/or publicly available regarding the rigorous manufacturing procedures for biosimilars. Objectives of the current analysis were to report on validation procedures for the Ovaleap(®) manufacturing process, to compare the characteristics of Ovaleap(®) versus Gonal-f(®), and to describe the performance and consistency of Ovaleap(®)...
April 6, 2017: Drugs in R&D
https://www.readbyqxmd.com/read/28383245/exploring-the-chemistry-of-genetic-information-storage-and-propagation-through-polymerase-engineering
#17
Gillian Houlihan, Sebastian Arangundy-Franklin, Philipp Holliger
Nucleic acids are a distinct form of sequence-defined biopolymer. What sets them apart from other biopolymers such as polypeptides or polysaccharides is their unique capacity to encode, store, and propagate genetic information (molecular heredity). In nature, just two closely related nucleic acids, DNA and RNA, function as repositories and carriers of genetic information. They therefore are the molecular embodiment of biological information. This naturally leads to questions regarding the degree of variation from this seemingly ideal "Goldilocks" chemistry that would still be compatible with the fundamental property of molecular heredity...
April 6, 2017: Accounts of Chemical Research
https://www.readbyqxmd.com/read/28381299/emerging-concepts-in-liquid-biopsies
#18
REVIEW
Samantha Perakis, Michael R Speicher
Characterizing and monitoring tumor genomes with blood samples could achieve significant improvements in precision medicine. As tumors shed parts of themselves into the circulation, analyses of circulating tumor cells, circulating tumor DNA, and tumor-derived exosomes, often referred to as "liquid biopsies", may enable tumor genome characterization by minimally invasive means. Indeed, multiple studies have described how molecular information about parent tumors can be extracted from these components. Here, we briefly summarize current technologies and then elaborate on emerging novel concepts that may further propel the field...
April 6, 2017: BMC Medicine
https://www.readbyqxmd.com/read/28378871/the-synthesis-of-cardenolide-and-bufadienolide-aglycones-and-related-steroids-bearing-a-heterocyclic-subunit
#19
REVIEW
Michał Michalak, Karol Michalak, Jerzy Wicha
Covering: early studies through to March 2016Cardenolides and bufadienolides constitute an attractive class of biologically active steroid derivatives which have been used for the treatment of heart disease in traditional remedies as well as in modern medicinal therapy. Due to their application as therapeutic agents and their unique molecular structures, bearing unsaturated 5- or 6-membered lactones (or other heterocycles) attached to the steroid core, cardio-active steroids have received great attention, which has intensified during the last decade, in the synthetic organic community...
April 5, 2017: Natural Product Reports
https://www.readbyqxmd.com/read/28376862/morphological-molecular-and-ftir-spectroscopic-analysis-during-the-differentiation-of-kidney-cells-from-pluripotent-stem-cells
#20
Monica Maribel Mata-Miranda, Gustavo Jesus Vazquez-Zapien, Marlon Rojas-Lopez, Virginia Sanchez-Monroy, David Guillermo Perez-Ishiwara, Raul Jacobo Delgado-Macuil
BACKGROUND: Kidney diseases are a global health problem. Currently, over 2 million people require dialysis or transplant which are associated with high morbidity and mortality; therefore, new researches focused on regenerative medicine have been developed, including the use of stem cells. RESULTS: In this research, we generate differentiated kidney cells (DKCs) from mouse pluripotent stem cells (mPSCs) analyzing their morphological, genetic, phenotypic, and spectroscopic characteristics along differentiation, highlighting that there are no reports of the use of Fourier transform infrared (FTIR) spectroscopy to characterize the directed differentiation of mPSCs to DKCs...
April 4, 2017: Biological Research
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