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https://www.readbyqxmd.com/read/28808955/exploring-the-biological-and-mechanical-properties-of-abdominal-aortic-aneurysms-using-uspio-mri-and-peak-tissue-stress-a-combined-clinical-and-finite-element-study
#1
Noel Conlisk, Rachael O Forsythe, Lyam Hollis, Barry J Doyle, Olivia M B McBride, Jennifer M J Robson, Chengjia Wang, Calum D Gray, Scott I K Semple, Tom MacGillivray, Edwin J R van Beek, David E Newby, Peter R Hoskins
Inflammation detected through the uptake of ultrasmall superparamagnetic particles of iron oxide (USPIO) on magnetic resonance imaging (MRI) and finite element (FE) modelling of tissue stress both hold potential in the assessment of abdominal aortic aneurysm (AAA) rupture risk. This study aimed to examine the spatial relationship between these two biomarkers. Patients (n = 50) > 40 years with AAA maximum diameters > = 40 mm underwent USPIO-enhanced MRI and computed tomography angiogram (CTA). USPIO uptake was compared with wall stress predictions from CTA-based patient-specific FE models of each aneurysm...
August 14, 2017: Journal of Cardiovascular Translational Research
https://www.readbyqxmd.com/read/28807165/effect-and-mechanism-of-chinese-herbal-medicine-on-parkinson-s-disease
#2
Bai-Yun Zeng
Parkinson's disease is a progressive neurodegenerative disorder. Although both genetic and environmental factors are implicated in the development of Parkinson's disease, the cause of the disease is still unclear. So far conventional treatments to Parkinson's are symptomatic relief and focused mainly on motor symptoms. Chinese herbal medicine has been used to treat many conditions in China, Korea, Japan, and many Southeast Asian countries for 1000 years. During past a few decades, Chinese herbal medicine has gained wider and increasing acceptance within both public and medical profession due to its effectiveness on many conditions in western countries...
2017: International Review of Neurobiology
https://www.readbyqxmd.com/read/28807160/treatment-of-chinese-herbal-medicine-for-female-infertility
#3
Dan Jiang, Lily Li, Bai-Yun Zeng
Female infertility is when a woman of reproductive age and sexual active, without contraception, cannot get pregnant after a year and more or keeps having miscarriages. Although conventional treatments for infertility such as hormone therapy, in vitro fertilization and many more, helped many female patients with infertility get pregnant during past a few decades, it is far from satisfactory with prolonging treatment time frames and emotional and financial burden. In recent years, more patients with infertile problems are seeking to alternative and complementary medicines to achieve a better outcome...
2017: International Review of Neurobiology
https://www.readbyqxmd.com/read/28805218/electrochemical-de-lithiation-of-silver-ferrite-and-composites-mechanistic-insights-from-ex-situ-in-situ-and-operando-x-ray-techniques
#4
Jessica L Durham, Alexander B Brady, Christina A Cama, David C Bock, Christopher J Pelliccione, Qing Zhang, Mingyuan Ge, Yue Ru Li, Yiman Zhang, Hanfei Yan, Xiaojing Huang, Yong Chu, Esther S Takeuchi, Kenneth J Takeuchi, Amy C Marschilok
The structure of pristine AgFeO2 and phase makeup of Ag0.2FeO1.6 (a one-pot composite comprised of nanocrystalline stoichiometric AgFeO2 and amorphous γ-Fe2O3 phases) was investigated using synchrotron X-ray diffraction. A new stacking-fault model was proposed for AgFeO2 powder synthesized using the co-precipitation method. The lithiation/de-lithiation mechanisms of silver ferrite, AgFeO2 and Ag0.2FeO1.6 were investigated using ex situ, in situ, and operando characterization techniques. An amorphous γ-Fe2O3 component in the Ag0...
August 14, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28801905/pcr-assembly-of-synthetic-promoters
#5
Hodan Mohamed, David Gould
In this chapter, we describe a two-step assembly PCR method to construct synthetic promoters. Essentially, this method takes advantage of specific annealing between complimentary DNA sequences to build random TFBS combinations within the assembled PCR products. A DNA polymerase is then employed to fill in the unpaired nucleotides in the generated sequences and also to amplify the assembled PCR products. We have used this method to generate synthetic promoters whereby the orientation of the TFBS can be controlled, the spacing between TFBS can be predetermined, and also the full diversity of the consensus TFBS can be covered through the use of degenerate oligonucleotides ...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28800019/the-natural-history-of-full-field-stimulus-threshold-decline-in-choroideremia
#6
Ioannis S Dimopoulos, Paul R Freund, Jacob A Knowles, Ian M MacDonald
PURPOSE: To evaluate full-field sensitivity thresholds (FSTs) across a wide range of choroideremia (CHM) disease stages and to determine their applicability as functional endpoints for CHM clinical trials. METHODS: Thirty CHM subjects (60 eyes) and 50 healthy controls (50 eyes) underwent FST testing under dark-adapted conditions to determine rod- and cone-mediated FSTs. Central retinal structure and function were assessed using fundus autofluorescence and microperimetry...
August 9, 2017: Retina
https://www.readbyqxmd.com/read/28799307/guiding-principles-for-the-use-of-fluroquinolones-in-out-patient-community-settings-of-india-panel-consensus
#7
Agam Vora, K Krishnaprasad
INTRODUCTION: Respiratory tract infections have been an important cause of morbidity and mortality worldwide that is looming large especially in context of antibiotic resistance that is confronted both by a pulmonologist as well as a general practitioner. A reflection to this trend has been the rising phenomenon of MICs as shown the respiratory pathogens towards conventional antibiotics including macrolides or β lactam/β lactamase inhibitor combinations. Respiratory fluoroquinolones offer broad yet potent cover of respiratory pathogens leading to their obvious choice for empirical therapy for clinical persisters or high risk cases with prior history of antibiotics not-withstanding the clinical concerns in tropical countries...
August 2017: Journal of the Association of Physicians of India
https://www.readbyqxmd.com/read/28795825/development-and-validation-of-the-forms-of-self-criticizing-attacking-and-self-reassuring-scale-short-form
#8
Marion Sommers-Spijkerman, Hester Trompetter, Peter Ten Klooster, Karlein Schreurs, Paul Gilbert, Ernst Bohlmeijer
Studies investigating the effectiveness of compassion-focused therapy (CFT) are growing rapidly. As CFT is oriented toward helping people deal with internal processes of self-to-self-relating, having instruments to measure these processes is important. The 22-item Forms of Self-Criticizing/Attacking and Self-Reassuring Scale (FSCRS) has been found a useful measure. In the present study, a 14-item short form of the FSCRS (FSCRS-SF) suited to studies requiring brief measures was developed and tested in a Dutch community sample (N = 363), and cross-validated in a sample consisting of participants in a study on the effectiveness of a guided self-help compassion training (N = 243)...
August 10, 2017: Psychological Assessment
https://www.readbyqxmd.com/read/28791374/corilagin-sensitizes-epithelial-ovarian-cancer-to-chemotherapy-by-inhibiting-snail%C3%A2-glycolysis-pathways
#9
Luoqi Jia, Jiayi Zhou, Hongbo Zhao, Hongyan Jin, Minzhi Lv, Naiqing Zhao, Zhizhong Zheng, Yiling Lu, Yanlin Ming, Yinhua Yu
We identified that corilagin is a major component extracted from a well-known hepatoprotective and antiviral medicinal herb, Phyllanthus niruri L with antitumor activity. Our previous study found that corilagin inhibited the growth of ovarian cancer cells via the TGF-β/AKT/ERK signaling pathways. Recently, we demonstrated that corilagin enhanced the sensitivity of ovarian cancer cells to chemotherapy. Ovarian cancer cell lines, SKOv3ip, Hey and HO-8910PM-Snail, were treated with different concentrations of corilagin in combination with paclitaxel and carboplatin...
August 7, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28789944/prioritization-of-natural-compounds-against-mycobacterium-tuberculosis-3-dehydroquinate-dehydratase-a-combined-in-silico-and-in-vitro-study
#10
Mohsin Y Lone, Mohd Athar, Vivek K Gupta, Prakash C Jha
Enormous efforts have been endeavored to develop inhibitors against the potential therapeutic target, mycobacterium tuberculosis 3-dehydroquinate dehydratase (MtbDHQase) to combat resistance. Over a dozen of small molecules have been crystallized to characterize the structural basis of the inhibition. However, the studies accomplished so far, have not incorporated all the essential interactions of these complexes simultaneously, to identify the novel inhibitors. Therefore, an attempt was made to construct the pharmacophore models and identify the essential features that can be employed to prioritize the molecules against this target...
August 5, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28776061/role-of-graphene-in-enhancing-the-mechanical-properties-of-tio2-graphene-heterostructures
#11
Changhong Cao, Sankha Mukherjee, Jian Liu, Biqiong Wang, Maedeh Amirmaleki, Zhuole Lu, Jane Y Howe, Doug Perovic, Xueliang Sun, Chandra Veer Singh, Yu Sun, Tobin Filleter
Graphene has been integrated in many heterogeneous structures in order to take advantage of its superior mechanical properties. However, the complex mechanical response of heterogeneous films incorporating graphene is not well understood. Here, we studied the mechanical behavior of atomic layer deposition (ALD) synthesized TiO2/graphene, as a representative building block of a typical composite, to understand the mechanical behavior of heterostructures using an experiment-computational approach. The inclusion of graphene was found to significantly enhance the Young's modulus of TiO2/graphene hetero-films for films below a critical thickness of 3 nm, beyond which the Young's modulus approaches that of pure TiO2 film...
August 4, 2017: Nanoscale
https://www.readbyqxmd.com/read/28770953/microrna-200c-exacerbates-the-ischemia-reperfusion-injury-of-heart-through-targeting-the-glutaminase-gls-mediated-glutamine-metabolism
#12
F Liu, Y Li, G Liu
OBJECTIVE: Cardiac ischemia and reperfusion, the common pathophysiological processes during cardiovascular surgery, are followed by oxidative stresses during the restoration of blood flow to the tissue, known as ischemia/reperfusion (IR) injury. microRNAs (miRNAs) are a group of endogenous, short and noncoding RNAs that post-transcriptionally repress their target mRNA expressions. Currently, the roles of microRNAs in the IR are still under investigated. This study will investigate the roles and mechanisms of miRNAs in the ischemia/reperfusion injury of the heart...
July 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28764871/subcellular-localization-prediction-of-apoptosis-proteins-based-on-evolutionary-information-and-support-vector-machine
#13
Qilin Xiang, Bo Liao, Xianhong Li, Huimin Xu, Jing Chen, Zhuoxing Shi, Qi Dai, Yuhua Yao
OBJECTIVES: In this paper, a high-quality sequence encoding scheme is proposed for predicting subcellular location of apoptosis proteins. METHODS: In the proposed methodology, the novel evolutionary-conservative information is introduced to represent protein sequences. Meanwhile, based on the proportion of golden section in mathematics, position-specific scoring matrix (PSSM) is divided into several blocks. Then, these features are predicted by support vector machine (SVM) and the predictive capability of proposed method is implemented by jackknife test RESULTS: The results show that the golden section method is better than no segmentation method...
May 2017: Artificial Intelligence in Medicine
https://www.readbyqxmd.com/read/28763501/single-stranded-adeno-associated-virus-achieves-efficient-gene-transfer-to-anterior-segment-in-the-mouse-eye
#14
Li Wang, Ru Xiao, Eva Andres-Mateos, Luk H Vandenberghe
Adeno-associated viruses (AAVs) are used extensively as a gene delivery vehicle for retinal gene therapy, yet its ability to target the anterior segment of the eye, critical to unlocking therapeutic opportunities, is less characterized. Previously, self-complimentary (sc) AAV was shown to be necessary for transduction of the cornea and trabecular meshwork (TM), limiting the size of the gene transfer cassette, likely due to a block in second strand synthesis thought to be required for functional transduction...
2017: PloS One
https://www.readbyqxmd.com/read/28761461/pcr-based-diagnosis-of-toxoplasma-parasite-in-ocular-infections-having-clinical-indications-of-toxoplasmosis
#15
Atieh Farhadi, Ali Haniloo, Asghar Fazaeli, Siamak Moradian, Mehdi Farhadi
BACKGROUND: The diagnosis of ocular toxoplasmosis is mainly based on clinical features. However, ocular fluid testing by PCR may be very helpful for approval or rejection of this etiology. In this study, we utilized a nested-PCR technique, targeting the B1 partial sequence to analyze the aqueous and vitreous samples for evaluating the presence of the Toxoplasma DNA. METHODS: Fifty aqueous or vitreous humor samples were obtained from patients with clinical features of ocular toxoplasmosis admitted to ophthalmology hospitals and clinics in Iran, within 2014...
January 2017: Iranian Journal of Parasitology
https://www.readbyqxmd.com/read/28760757/causes-and-consequences-of-adult-sex-ratio-imbalance-in-a-historical-u-s-population
#16
Ryan Schacht, Ken R Smith
The responsiveness of individuals to partner availability has been well-documented across the literature. However, there is disagreement regarding the direction of the consequences of sex ratio imbalance. Specifically, does an excess of males or females promote male-male mating competition? In an attempt to clarify the role of the adult sex ratio (ASR) on behaviour, here we evaluate both competing and complimentary expectations derived from theory across the social and biological sciences. We use data drawn from a historical, nineteenth century population in North America and target several life-history traits thought to be affected by partner availability: age at first birth, relationship status, completed fertility and longevity...
September 19, 2017: Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences
https://www.readbyqxmd.com/read/28760163/stable-engraftment-of-human-microbiota-into-mice-with-a-single-oral-gavage-following-antibiotic-conditioning
#17
Christopher Staley, Thomas Kaiser, Lalit K Beura, Matthew J Hamilton, Alexa R Weingarden, Aleh Bobr, Johnthomas Kang, David Masopust, Michael J Sadowsky, Alexander Khoruts
BACKGROUND: Human microbiota-associated (HMA) animal models relying on germ-free recipient mice are being used to study the relationship between intestinal microbiota and human disease. However, transfer of microbiota into germ-free animals also triggers global developmental changes in the recipient intestine, which can mask disease-specific attributes of the donor material. Therefore, a simple model of replacing microbiota into a developmentally mature intestinal environment remains highly desirable...
August 1, 2017: Microbiome
https://www.readbyqxmd.com/read/28758107/ganoderma-spp-a-promising-adjuvant-treatment-for-breast-cancer
#18
Ivette J Suárez-Arroyo, Yaliz Loperena-Alvarez, Raysa Rosario-Acevedo, Michelle M Martínez-Montemayor
For the past several decades, cancer patients in the U.S. have chosen the use of natural products as an alternative or complimentary medicine approach to treat or improve their quality of life via reduction or prevention of the side effects during or after cancer treatment. The genus Ganoderma includes about 80 species of mushrooms, of which several have been used for centuries in traditional Asian medicine for their medicinal properties, including anticancer and immunoregulatory effects. Numerous bioactive compounds seem to be responsible for their healing effects...
March 2017: Medicines (Basel, Switzerland)
https://www.readbyqxmd.com/read/28750815/molecular-dynamics-methodologies-for-probing-cannabinoid-ligand-receptor-interaction
#19
Diane L Lynch, Dow P Hurst, Derek M Shore, Mike C Pitman, Patricia H Reggio
The cannabinoid type 1 and 2 G-protein-coupled receptors are currently important pharmacological targets with significant drug discovery potential. These receptors have been shown to display functional selectivity or biased agonism, a property currently thought to have substantial therapeutic potential. Although recent advances in crystallization techniques have provided a wealth of structural information about this important class of membrane-embedded proteins, these structures lack dynamical information. In order to fully understand the interplay of structure and function for this important class of proteins, complementary techniques that address the dynamical aspects of their function are required such as NMR as well as a variety of other spectroscopies...
2017: Methods in Enzymology
https://www.readbyqxmd.com/read/28749443/study-of-the-interactions-of-bovine-serum-albumin-with-the-new-anti-inflammatory-agent-4-1-3-dioxo-1-3-dihydro-2h-isoindol-2-yl-n-4-ethoxy-phenyl-methylidene-benzohydrazide-using-a-multi-spectroscopic-approach-and-molecular-docking
#20
Tanveer A Wani, Ahmed H Bakheit, Abdul-Rahman A Al-Majed, Mashooq A Bhat, Seema Zargar
The lipophilic derivative of thalidomide (4-(1,3-dioxo-1,3-dihydro-2H-isoindol-2-yl)-N'-[(4-ethoxyphenyl)methylidene]benzohydrazide, 6P) was synthesized to enhance its characteristics and efficacy. Earlier studies have proved the immunomodulatory and anti-inflammatory effects of 6P. In this study the interaction between bovine serum albumin (BSA) and 6P was studied using a multi-spectroscopic approach which included UV spectrophotometry, spectrofluorimetry and three dimensional spectrofluorometric and molecular docking studies...
July 27, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
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