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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/28945001/organ-on-a-chip-technology-for-reproducing-multiorgan-physiology
#2
REVIEW
Seung Hwan Lee, Jong Hwan Sung
In the drug development process, the accurate prediction of drug efficacy and toxicity is important in order to reduce the cost, labor, and effort involved. For this purpose, conventional 2D cell culture models are used in the early phase of drug development. However, the differences between the in vitro and the in vivo systems have caused the failure of drugs in the later phase of the drug-development process. Therefore, there is a need for a novel in vitro model system that can provide accurate information for evaluating the drug efficacy and toxicity through a closer recapitulation of the in vivo system...
September 25, 2017: Advanced Healthcare Materials
https://www.readbyqxmd.com/read/28944961/two-case-studies-on-how-study-designs-can-be-made-more-informative-using-modeling-and-simulation-approaches
#3
Philip J Lowe, Martin Fink, Mark N Milton
Drug development should extract maximum information from experiments with minimized exposure of patients or experimental animals to invasive procedures and potentially harmful effects with minimized investment of time and money. Herein, two aspects of study design are explored illustrating how information can be extracted more efficiently by investigating a range of exposures within each individual by either following responses as drug concentrations decline or by within-individual dose escalation, rather than relying on steady-state cross-sectional analyses...
September 25, 2017: Clinical Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/28944956/ethical-challenges-in-biomarker-driven-drug-development
#4
Spencer Phillips Hey
The increasing importance of biomarkers-as drivers of research and drug development activity, surrogate outcomes in clinical trials, and the centerpiece of precision medicine-raises many new ethical challenges. In what follows, I briefly review some of the major ethical challenges and debates already identified in the literature, and then describe a new ethical challenge that arises from the abstract nature of biomarker hypotheses.
September 25, 2017: Clinical Pharmacology and Therapeutics
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/28943118/roles-of-clinical-research-networks-in-pediatric-drug-development
#6
REVIEW
Mark A Turner, Sabah Attar, Saskia N de Wildt, Gilles Vassal, Laura Mangiarini, Carlo Giaquinto
The evaluation of drugs that are used in children has been neglected historically but is now well established as an essential part of clinical drug development. The increase in pediatric activity among industry, and other sectors, has highlighted the importance of joint working. All participants in pediatric drug development need to be aware of the "big picture." An increasingly important part of this big picture in pediatrics, as in other populations, is the design and conduct of clinical trials in networks...
September 21, 2017: Clinical Therapeutics
https://www.readbyqxmd.com/read/28942898/the-need-for-pediatric-drug-development
#7
Robert M Ward, Daniel K Benjamin, Jonathan M Davis, Richard L Gorman, Ralph Kauffman, Gregory L Kearns, Mary Dianne Murphy, Catherine M T Sherwin
No abstract text is available yet for this article.
September 21, 2017: Journal of Pediatrics
https://www.readbyqxmd.com/read/28942553/clinacanthus-nutans-mitigates-neuronal-apoptosis-and-ischemic-brain-damage-through-augmenting-the-c-ebp%C3%AE-driven-ppar-%C3%AE-transcription
#8
Jui-Sheng Wu, Mei-Han Kao, Hsin-Da Tsai, Wai-Mui Cheung, Jin-Jer Chen, Wei-Yi Ong, Grace Y Sun, Teng-Nan Lin
Clinacanthus nutans Lindau (C. nutans) is a traditional herbal medicine widely used in Asian countries for treating a number of remedies including snake and insect bites, skin rashes, viral infections, and cancer. However, the underlying molecular mechanisms for its action and whether C. nutans can offer protection on stroke damage in brain remain largely unknown. In the present study, we demonstrated protective effects of C. nutans extract to ameliorate neuronal apoptotic death in the oxygen-glucose deprivation model and to reduce infarction and mitigate functional deficits in the middle cerebral artery occlusion model, either administered before or after hypoxic/ischemic insult...
September 23, 2017: Molecular Neurobiology
https://www.readbyqxmd.com/read/28942336/the-use-of-social-media-in-orphan-drug-development
#9
Christopher-Paul Milne, Wendi Ni
Social media has transformed how people interact with one another through the Internet, and it has the potential to do the same for orphan drug development. Currently, social media influences the orphan drug development process in the following three ways: assisting the study of orphan diseases, increasing the awareness of orphan disease, and playing a vital role in clinical trials. However, there are some caveats to the utilization of social media, such as the need to protect patient privacy by adequately de-identifying personal health information, assuring consistent quality and representativeness of the data, and preventing the unblinding of patient group assignments...
September 20, 2017: Clinical Therapeutics
https://www.readbyqxmd.com/read/28941848/drug-development-against-tuberculosis-past-present-and-future
#10
REVIEW
Mahesh S Vasava, Manoj N Bhoi, Sanjay K Rathwa, Mayuri A Borad, Sneha G Nair, Hitesh D Patel
Infection of Mycobacterium tuberculosis (MTB) was observed as early as 5000 years ago with evidence, which is a primeval enemy of the humanoid race. MTB is the pathogen which is responsible for causing the infectious disease tuberculosis; it remains a major cause of morbidity and mortality in poor low-income countries as well as in developing countries because of non-availability of reliable laboratory facilities. The current treatment for drug-resistant tuberculosis (TB) is lengthy, complex, and connected with severe harmful side effects and poor outcomes...
October 2017: Indian Journal of Tuberculosis
https://www.readbyqxmd.com/read/28941218/pre-and-postnatal-development-of-the-eye-a-species-comparison
#11
REVIEW
Steven Van Cruchten, Vanessa Vrolyk, Marie-France Perron Lepage, Marie Baudon, Hélène Voute, Sabine Schoofs, Julius Haruna, Marie-Odile Benoit-Biancamano, Benoît Ruot, Karel Allegaert
In this review paper, literature data on pre- and postnatal eye development are compared between humans and nonclinical species that are commonly used for human safety assessment, namely, mouse, rat, rabbit, dog, minipig, and nonhuman primates. Some new data on rat and minipig ocular development are also included. This compiled information can be helpful for species selection in juvenile toxicity studies or assist in the interpretation of (non)clinical data during pediatric drug development. Despite some differences in developmental windows and anatomical peculiarities, such as the lack of a fovea centralis in nonprimate species or the presence of a nictitating membrane in some nonclinical species, the functioning and development of the eye is strikingly similar between humans and other mammals...
September 22, 2017: Birth defects research
https://www.readbyqxmd.com/read/28941174/a-drug-development-perspective-on-targeting-tumor-associated-myeloid-cells
#12
REVIEW
Meher Majety, Valeria Runza, Christian Lehmann, Sabine Hoves, Carola H Ries
Despite decades of research, cancer remains a devastating disease and new treatment options are needed. Today cancer is acknowledged as a multifactorial disease not only comprising of aberrant tumor cells, but also the associated stroma including tumor vasculature, fibrotic plaques and immune cells that interact in a complex heterotypic interplay. Myeloid cells represent one of the most abundant immune cell population within the tumor stroma and are equipped with a broad functional repertoire that promotes tumor growth by suppressing cytotoxic T cell activity, stimulating neo-angiogenesis and tissue remodeling...
September 22, 2017: FEBS Journal
https://www.readbyqxmd.com/read/28938573/iatc-mhyb-a-hybrid-multi-label-classifier-for-predicting-the-classification-of-anatomical-therapeutic-chemicals
#13
Xiang Cheng, Shu-Guang Zhao, Xuan Xiao, Kuo-Chen Chou
Recommended by the World Health Organization (WHO), drug compounds have been classified into 14 main ATC (Anatomical Therapeutic Chemical) classes according to their therapeutic and chemical characteristics. Given an uncharacterized compound, can we develop a computational method to fast identify which ATC class or classes it belongs to? The information thus obtained will timely help adjusting our focus and selection, significantly speeding up the drug development process. But this problem is by no means an easy one since some drug compounds may belong to two or more than two ATC classes...
August 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/28937657/synthesis-of-2-4-diaminopyrimidine-core-based-derivatives-and-biological-evaluation-of-their-anti-tubercular-activities
#14
Yifan Ouyang, Hao Yang, Peng Zhang, Yu Wang, Sargit Kaur, Xuanli Zhu, Zhe Wang, Yutong Sun, Wei Hong, Yun Fong Ngeow, Hao Wang
Tuberculosis (TB) is a chronic, potentially fatal disease caused by Mycobacterium tuberculosis (Mtb). The dihyrofolate reductase in Mtb (mt-DHFR) is believed to be an important drug target in anti-TB drug development. This enzyme contains a glycerol (GOL) binding site, which is assumed to be a useful site to improve the selectivity towards human dihyrofolate reductase (h-DHFR). There have been previous attempts to design drugs targeting the GOL binding site, but the designed compounds contain a hydrophilic group, which may prevent the compounds from crossing the cell wall of Mtb to function at the whole cell level...
September 22, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28936835/-progress-on-studies-of-impact-on-cyp450-enzymes-activity-of-traditional-chinese-medicine-by-cocktail-probe-substrates-approach
#15
REVIEW
Xi Du, Xin He, Yu-Hong Huang, Zi-Qiang Li
Cocktail probe substrates approach is a fast, sensitive and high through put method to determine cytochrome P450 enzymes activity. It has been widely used to screen early drug development, analyze drug metabolism types and confirm the metabolism pathways, study drug-drug interactions, optimize clinical regimen, evaluate post marketing drugs and help liver/kidney pathological studies. This article reviewed characteristics of Cocktail probe substrates, focused on the application to traditional Chinese medicine to CYP450 system as follows: the metabolic pathway research of Chinese herb active ingredients; processing way and compatibility of medical herbs affect CYP450; find out the metabolic characteristic of Chinese patent medicine, study in pharmacy of national minority; do research in liver protective effect of traditional Chinese medicine and evaluate traditional Chinese medicine syndromes in animal models...
December 2016: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/28936710/cloning-expression-purification-and-bioactivity-evaluation-of-a-thrombin-like-enzyme-from-deinagkistrodon-acutus-venom-gland-library
#16
An Li, Chuan Zhang, Jie Wang, Junjie Wang, Hailong Jiang, Jianzhong Li, Xingyuan Ma, Wen Zhang, Yiming Lu
OBJECTIVES: To identify a new member of serine proteases from Deinagkistrodon acutus via phage display technique and appraise its biocatalytic activities. RESULTS: A novel thrombin-like enzyme gene was cloned by screening the phage display library of D. acutus venom gland. The gene has a 783 bp ORF encoding 260 amino acids. A recombinant enzyme expression vector was constructed and the fused protein was expressed in Escherichia coli. The protein was purified showing a single band of approx...
September 21, 2017: Biotechnology Letters
https://www.readbyqxmd.com/read/28936619/erratum-to-genomics-guided-precise-anti-epileptic-drug-development
#17
Norman Delanty, Gianpiero Cavalleri
No abstract text is available yet for this article.
September 21, 2017: Neurochemical Research
https://www.readbyqxmd.com/read/28936389/disease-progression-modeling-key-concepts-and-recent-developments
#18
Sarah F Cook, Robert R Bies
Disease modeling involves the use of mathematical functions to describe quantitatively the time course of disease progression. In order to characterize the natural progression of disease, these models generally incorporate longitudinal data for some biomarker(s) of disease severity or can incorporate more direct measures of disease severity. Disease models are also often linked to pharmacokinetic-pharmacodynamic models so that the influence of drug treatment on disease progression can be quantified and evaluated...
October 2016: Current Pharmacology Reports
https://www.readbyqxmd.com/read/28935902/targeting-neph1-and-zo-1-protein-protein-interaction-in-podocytes-prevents-podocyte-injury-and-preserves-glomerular-filtration-function
#19
Amin Sagar, Ehtesham Arif, Ashish Kumar Solanki, Pankaj Srivastava, Michael G Janech, Seok-Hyung Kim, Joshua H Lipschutz, Sang-Ho Kwon, Ashish, Deepak Nihalani
Targeting protein-protein interaction (PPI) is rapidly becoming an attractive alternative for drug development. While drug development commonly involves inhibiting a PPI, in this study, we show that stabilizing PPI may also be therapeutically beneficial. Junctional proteins Neph1 and ZO-1 and their interaction is an important determinant of the structural integrity of slit diaphragm, which is a critical component of kidney's filtration system. Since injury induces loss of this interaction, we hypothesized that strengthening this interaction may protect kidney's filtration barrier and preserve kidney function...
September 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28935439/comparison-of-cannabinoids-with-known-analgesics-using-a-novel-high-throughput-zebrafish-larval-model-of-nociception
#20
L D Ellis, F Berrue, M Morash, J C Achenbach, J Hill, J J McDougall
It has been established that both adult and larval zebrafish are capable of showing nociceptive responses to noxious stimuli; however, the use of larvae to test novel analgesics has not been fully explored. Zebrafish larvae represent a low-cost, high-throughput alternative to traditional mammalian models for the assessment of product efficacy during the initial stages of drug development. In the current study, a novel model of nociception using zebrafish larvae is described. During the recovery from an acute exposure to low levels of acetic acid, larvae display innate changes in behaviour that may be indicative of nociception...
September 19, 2017: Behavioural Brain Research
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