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https://www.readbyqxmd.com/read/28945021/-progress-of-new-antidepressant-drugs-development
#1
REVIEW
Xiao Zhang, Jun-Sheng Tian, Huan Liu, Xue-Mei Qin
Depression becomes more and more serious and has been greatly do harm to human's physical and mental health. WHO predicts that depression will become the second leading cause of abnormal death and disability by 2020. There is still the drug treatment as the first-line antidepressive therapy, but the effect of listed antidepressant drugs is not ideal. Therefore, discovery of new antidepressant drug of sunique, higher curative effect, less adverse reaction is the pursuit of pharmaceutical. The traditional Chinese medicine (TCM) of anti-depression and natural antidepressant in currently listed, drug development and drug discovery phase are summarized in this paper, aiming to provide reference for new antidepressant drug research...
January 2017: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/28944906/peptidome-analysis-of-amniotic-fluid-from-pregnancies-with-preeclampsia
#2
Yating Qian, Lei Zhang, Can Rui, Hongjuan Ding, Pengyuan Mao, Hongjie Ruan, Ruizhe Jia
Preeclampsia (PE), a life‑threatening, complicated pregnancy‑associated disease, has recently become a research focus in obstetrics. However, the peptidome of the amniotic fluid in PE patients has rarely been investigated. The present study used peptidomic profiling to perform a comparative analysis of human amniotic fluid between normal and PE pregnancies. Centrifugal ultrafiltration and liquid chromatography‑tandem mass spectrometry (LC‑MS/MS) was combined with isotopomeric dimethyl labels to gain a deeper understanding of the role of proteins and the peptidome in the onset of PE...
September 21, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28944888/screening-of-potential-genes-contributing-to-the-macrocycle-drug-resistance-of-c-albicans-via-microarray-analysis
#3
Jing Yang, Wei Zhang, Jian Sun, Zhiqin Xi, Zusha Qiao, Jinyu Zhang, Yan Wang, Ying Ji, Wenli Feng
The aim of the present study was to investigate the potential genes involved in drug resistance of Candida albicans (C. albicans) by performing microarray analysis. The gene expression profile of GSE65396 was downloaded from the Gene Expression Omnibus, including a control, 15‑min and 45‑min macrocyclic compound RF59‑treated group with three repeats for each. Following preprocessing using RAM, the differentially expressed genes (DEGs) were screened using the Limma package. Subsequently, the Kyoto Encyclopedia of Genes and Genomes pathways of these genes were analyzed using the Database for Annotation, Visualization and Integrated Discovery...
September 20, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28944878/gene-expression-analysis-regulation-of-key-genes-associated-with-mycophenolate-mofetil-treatment-of-symptomatic-carotid-artery-stenosis
#4
Feng Jin, Kai Wang, Xiaochuan Sun, Zhanpu Zhang, Ping Han
The present study analyzed gene expression arrays to identify differentially-expressed genes (DEGs) between mycophenolate mofetil (MMF)‑treated and placebo‑treated patients with symptomatic carotid artery stenosis (SCAS). In addition, the key genes involved in the pharmacology of MMF treatment in patients with SCAS were identified. The gene expression dataset was obtained from a Gene Expression Omnibus database, which included 9 MMF‑treated and 11 placebo‑treated samples. The DEGs were identified between MMF and placebo groups using R software...
September 20, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28944829/thymic-function-in-the-regulation-of-t-cells-and-molecular-mechanisms-underlying-the-modulation-of-cytokines-and-stress-signaling-review
#5
Fenggen Yan, Xiumei Mo, Junfeng Liu, Siqi Ye, Xing Zeng, Dacan Chen
The thymus is critical in establishing and maintaining the appropriate microenvironment for promoting the development and selection of T cells. The function and structure of the thymus gland has been extensively studied, particularly as the thymus serves an important physiological role in the lymphatic system. Numerous studies have investigated the morphological features of thymic involution. Recently, research attention has increasingly been focused on thymic proteins as targets for drug intervention. Omics approaches have yielded novel insights into the thymus and possible drug targets...
September 19, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28944744/progress-in-the-formulation-and-delivery-of-somatostatin-analogs-for-acromegaly
#6
Sarinj Fattah, David J Brayden
A 14 amino acid cystin bridge containing neuropeptide was discovered in 1973 and designated as growth hormone-inhibiting hormone, in other words, somatostatin. Its discovery led to the synthesis of three analogs which were licensed for the treatment of acromegaly: octreotide, lanreotide and pasireotide. Somatostatin analogs are currently approved only as either subcutaneous or intramuscular long-acting injections. We examine the challenges that must be overcome to create oral formulations of somatostatin analogs and examine selected clinical trial data...
October 2017: Therapeutic Delivery
https://www.readbyqxmd.com/read/28944723/life-sciences-discovery-and-technology-highlights
#7
Tal Murthy, David Yeo
No abstract text is available yet for this article.
October 2017: SLAS Technology
https://www.readbyqxmd.com/read/28944677/a-multiplex-and-label-free-relative-quantification-approach-for-studying-protein-abundance-of-drug-metabolizing-enzymes-in-human-liver-microsomes-using-swath-ms
#8
Rohitash Jamwal, Benjamin J Barlock, Sravani Adusumalli, Ken Ogasawara, Brigitte L Simons, Fatemeh Akhlaghi
We describe a sequential windowed acquisition of all theoretical fragment ion mass spectra (SWATH-MS) based method for label-free, simultaneous, relative quantification of drug metabolism enzymes in human liver microsomes (HLM; n=78). In-solution tryptic digestion was aided by a pressure cycling method which allowed a 90-min incubation time, a significant reduction over classical protocols (12-18 h). Digested peptides were separated on an Acquity UHPLC Peptide BEH C18 column using a 60-min gradient method at a flow rate of 0...
September 25, 2017: Journal of Proteome Research
https://www.readbyqxmd.com/read/28944578/impact-of-a-central-scaffold-on-the-binding-affinity-of-fragment-pairs-isolated-from-dna-encoded-self-assembling-chemical-libraries
#9
Martina Bigatti, Alberto Dal Corso, Sara Vanetti, Samuele Cazzamalli, Ulrike Rieder, Jörg Scheuermann, Dario Neri, Filippo Sladojevich
The screening of encoded self-assembling chemical libraries allows the identification of fragment pairs that bind to adjacent pockets on target proteins of interest. For practical applications, it is necessary to link these ligand pairs into discrete organic molecules, devoid of any nucleic acid component. Here we describe the discovery of a synergistic binding pair for acid alpha-1 glycoprotein and a chemical strategy for the identification of optimal linkers, connecting the two fragments. The procedure yielded a set of small organic ligands, the best of which exhibited a dissociation constant of 9...
September 24, 2017: ChemMedChem
https://www.readbyqxmd.com/read/28944571/ensemble-docking-to-difficult-targets-in-early-stage-drug-discovery-methodology-and-application-to-fibroblast-growth-factor-23
#10
Hector A Velazquez, Demian Riccardi, Zhousheng Xiao, L Darryl Quarles, C Ryan Yates, Jerome Baudry, Jeremy C Smith
Ensemble docking is now commonly used in early-stage in silico drug discovery, and can be used to attack difficult problems such as finding lead compounds which can disrupt protein:protein interactions. We give an example of this methodology here, as applied to fibroblast growth factor 23 (FGF23), a protein hormone that is responsible for regulating phosphate homeostasis. The first small molecule antagonists of FGF23 were recently discovered by combining ensemble docking with extensive experimental target validation data(1) ...
September 25, 2017: Chemical Biology & Drug Design
https://www.readbyqxmd.com/read/28944552/an-av-rgd-integrin-inhibitor-toolbox-drug-discovery-insight-challenges-and-opportunities
#11
Richard Hatley, Simon Macdonald, Robert Slack, Joelle Le, Steve Ludbrook, Pauline Lukey
There is a requirement for efficacious and safe medicines to treat diseases with high unmet need. The resurgence in av RGD integrin inhibitor drug discovery is poised to contribute to this requirement. However, drug discovery in the av integrin space is notoriously difficult due to the receptors being structurally very similar as well as the polar zwitterionic nature of the pharmacophore. This review aims to guide drug discovery research in this field through an av inhibitor toolbox, consisting of small molecules and antibodies...
September 25, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/28944471/a-composite-of-exhaled-ltb4-lxa4-feno-and-fev1-as-an-asthma-classification-ratio-characterizes-childhood-asthma
#12
Li-Chen Chen, Hsu-Min Tseng, Ming-Ling Kuo, Chih-Yung Chiu, Sui-Ling Liao, Kuan-Wen Su, Ming-Han Tsai, Man-Chin Hua, Shen-Hao Lai, Tsung-Chieh Yao, Kuo-Wei Yeh, Ai-Hsuan Wu, Jing-Long Huang, Shau-Ku Huang
BACKGROUND: Aberrant generation of eicosanoids is associated with asthma, but the evidence remains incomplete and its potential utility as biomarkers is unclear. Major eicosanoids in exhaled breath condensates (EBCs) were assessed as candidate markers for childhood asthma. METHODS: Ten exhaled eicosanoid species was evaluated using ELISA in the discovery phase, followed by prediction model-building and validation phases. RESULTS: Exhaled LTB4 , LTE4 , PGE2 and LXA4 showed significant difference between asthmatics (N=60) and controls (N=20)...
September 25, 2017: Allergy
https://www.readbyqxmd.com/read/28944451/expression-of-mirna-26b-5p-and-its-target-trps1-is-associated-with-radiation-exposure-in-post-chernobyl-breast-cancer
#13
Christina M Wilke, Julia Hess, Sergiy V Klymenko, Vadim V Chumak, Liubov M Zakhartseva, Elena V Bakhanova, Annette Feuchtinger, Axel K Walch, Martin Selmansberger, Herbert Braselmann, Ludmila Schneider, Adriana Pitea, Julia Steinhilber, Falko Fend, Hans C Bösmüller, Horst Zitzelsberger, Kristian Unger
Ionising radiation is a well-recognised risk factor for the development of breast cancer, however, it is unknown whether radiation-specific molecular oncogenic mechanisms exist. We investigated post-Chernobyl breast cancers from radiation-exposed female clean-up workers and non-exposed controls for molecular changes. Radiation-associated alterations identified in the discovery cohort (n=38) were subsequently validated in a second cohort (n=39). Increased expression of hsa-miR-26b-5p was associated with radiation exposure in both of the cohorts...
September 25, 2017: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/28944419/-brugada-syndrome-revealed-by-intestinal-shigellosis-in-a-patient-from-benin-at-the-university-hospital-of-saint-etienne
#14
Y T Aba, A Fresard, A Gagneux-Brunon, M F Lutz, C Cazorla, F Lucht, E Botelho-Nevers, E Bissagnene, A Da Costa
This paper is about a Brugada syndrome (BS) of accidental discovery in a patient from Benin during an intestinal shigellosis episode in the infectiology department of university hospital of Saint-Etienne, France. Authors establish a link between these two diseases. After a literature's review, they underline that BS is under-diagnosed in Africa. Furthermore, they highlight socio-cultural characteristics of sudden deaths in West Africa including BS.
September 25, 2017: Bulletin de la Société de Pathologie Exotique
https://www.readbyqxmd.com/read/28944315/is-chronic-ahr-activation-by-rapidly-metabolized-ligands-safe-for-the-treatment-of-immune-mediated-diseases
#15
Allison K Ehrlich, Nancy I Kerkvliet
There is a long standing perception that AhR ligands are automatically disqualified from pharmaceutical development due to their induction of Cyp1a1 as well as their potential for causing "dioxin-like" toxicities. However, recent discoveries of new AhR ligands with potential therapeutic applications have been reported, inviting reconsideration of this policy. One area of exploration is focused on the activation of AhR to promote the generation of regulatory T cells, which control the intensity and duration of immune responses...
February 2017: Current Opinion in Toxicology
https://www.readbyqxmd.com/read/28944295/towards-precision-medicine-in-alzheimer-s-disease-deciphering-genetic-data-to-establish-informative-biomarkers
#16
Ornit Chiba-Falek, Michael W Lutz
INTRODUCTION: Developing biomarker tools for identification of individuals at high-risk for late-onset Alzheimer's disease (LOAD) is important for prognosis and early treatment. This review focuses on genetic factors and their potential role for precision medicine in LOAD. AREAS COVERED: APOEe4 is the strongest genetic risk factor for non-Mendelian LOAD, and the APOE-linkage disequilibrium (LD) region has produced the most significant association signal in multi-center genome-wide-association-studies (GWAS)...
2017: Expert Review of Precision Medicine and Drug Development
https://www.readbyqxmd.com/read/28944019/utility-of-dna-barcoding-to-identify-rare-endemic-vascular-plant-species-in-trinidad
#17
Fazeeda N Hosein, Nigel Austin, Shobha Maharaj, Winston Johnson, Luke Rostant, Amanda C Ramdass, Sephra N Rampersad
The islands of the Caribbean are considered to be a "biodiversity hotspot." Collectively, a high level of endemism for several plant groups has been reported for this region. Biodiversity conservation should, in part, be informed by taxonomy, population status, and distribution of flora. One taxonomic impediment to species inventory and management is correct identification as conventional morphology-based assessment is subject to several caveats. DNA barcoding can be a useful tool to quickly and accurately identify species and has the potential to prompt the discovery of new species...
September 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/28943935/identification-of-key-genes-associated-with-the-effect-of-osmotic-stimuli-on-intervertebral-discs-using-microarray-analysis
#18
Guangxiao Ni, Guobin Liu, Kunlun Yu
The present study aimed to explore the effect of osmotic stimuli on intervertebral discs (IVDs) using microarray analysis. Gene expression dataset GSE1648 was downloaded from the Gene Expression Omnibus database. There were 11 IVD cell samples in this dataset, which included 4 hyperosmotic stimuli samples, 3 hypoosmotic stimuli samples and 4 isosmotic stimuli samples. The differentially expressed genes (DEGs) in hyperosmotic or hypoosmotic IVD cells (designated DEGs-hyper or DEGs-hypo) were identified, compared with isosmotic cells, using the limma package of R software...
October 2017: Oncology Letters
https://www.readbyqxmd.com/read/28943867/editorial-virus-discovery-by-metagenomics-the-im-possibilities
#19
EDITORIAL
Bas E Dutilh, Alejandro Reyes, Richard J Hall, Katrine L Whiteson
No abstract text is available yet for this article.
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28943837/solving-the-neurogenesis-puzzle-looking-for-pieces-outside-the-traditional-box
#20
Mariela Faykoo-Martinez, Ilapreet Toor, Melissa M Holmes
The vast majority of what is considered fact about adult neurogenesis comes from research on laboratory mice and rats: where it happens, how it works, what it does. However, this relative exclusive focus on two rodent species has resulted in a bias on how we think about adult neurogenesis. While it might not prevent us from making conclusions about the evolutionary significance of the process or even prevent us from generalizing to diverse mammals, it certainly does not help us achieve these outcomes. Here, we argue that there is every reason to expect striking species differences in adult neurogenesis: where it happens, how it works, what it does...
2017: Frontiers in Neuroscience
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