keyword
MENU ▼
Read by QxMD icon Read
search

Nature medicine

keyword
https://www.readbyqxmd.com/read/28927020/stable-carbon-isotope-composition-of-the-lipids-in-natural-ophiocordyceps-sinensis-from-major-habitats-in-china-and-its-substitutes
#1
Lian-Xian Guo, Xiao-Ming Xu, Yue-Hui Hong, Yan Li, Jiang-Hai Wang
Ophiocordyceps sinensis is one rare medicinal fungus produced in the Qinghai-Tibetan Plateau. Its quality and price varies hugely with different habitat, and its numerous substitutes have sprung up in functional food markets. This paper aims to discriminate the geographic origin of wild O. sinensis and its substitutes via element analyzer-isotope ratio mass spectrometry and gas chromatography-isotope ratio mass spectrometry. The δ(13)C values of major fatty acids in the lipids of O. sinensis are characterized unanimously by the variation relation C18:0 < C18:2 ≈ C16:0 < C18:1, while their fluctuation intervals are notably different between those of neutral and polar lipids...
September 18, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28926821/autopsies-in-the-elderly-erzurum-study
#2
Ozge Timur, Pinar Tosun Tasar, Merve Gulsah Ulusoy, Azem Irez, Filiz Yildirim, Dogan Nasir Binici, Sevnaz Sahin, Ahmet Nezih Kok
INTRODUCTION: Clinical and forensic autopsies are the best methods for determining cause of death. The aim of this study was to determine demographic and etiologic characteristics in geriatric forensic cases analyzed in Erzurum, Turkey. MATERIALS AND METHODS: Autopsy reports and prosecution documents of decedents aged 65 and older autopsied in the Morgue Specialization Department of the Forensic Medicine Institute, Erzurum Division between January 1, 2010 and December 31, 2015 were screened retrospectively...
September 12, 2017: Journal of Forensic and Legal Medicine
https://www.readbyqxmd.com/read/28926480/postconcussive-symptoms-over-the-first-14-days-after-mild-traumatic-brain-injury-an-experience-sampling-study
#3
Maria Pacella, Arjun Prabhu, Julia Morley, Stephanie Huang, Brian Suffoletto
OBJECTIVE: This study examined changes in postconcussive symptoms (PCS) over the acute postinjury recovery period, focusing on how daily PCSs differ between mild traumatic brain injury (mTBI) and other injury types. SETTING: An urban emergency department (ED) in Western Pennsylvania. SUBJECTS: A total of 108 adult patients with trauma being discharged from the ED were recruited and grouped by injury type: mild TBI (mTBI; n = 39), head injury without mTBI (HI: n = 16), and non-head-injured trauma controls (TCs: n = 53)...
September 18, 2017: Journal of Head Trauma Rehabilitation
https://www.readbyqxmd.com/read/28926426/epigenetics-and-precision-oncology
#4
Rachael J Werner, Andrew D Kelly, Jean-Pierre J Issa
Epigenetic alterations such as DNA methylation defects and aberrant covalent histone modifications occur within all cancers and are selected for throughout the natural history of tumor formation, with changes being detectable in early onset, progression, and ultimately recurrence and metastasis. The ascertainment and use of these marks to identify at-risk patient populations, refine diagnostic criteria, and provide prognostic and predictive factors to guide treatment decisions are of growing clinical relevance...
September 2017: Cancer Journal
https://www.readbyqxmd.com/read/28926234/using-ultra-performance-liquid-chromatography-quadrupole-time-of-flight-mass-spectrometry-based-chemometrics-for-the-identification-of-anti-angiogenic-biflavonoids-from-edible-garcinia-species
#5
Ping Li, Grace Gar-Lee Yue, Hin-Fai Kwok, Chun-Lin Long, Clara Bik-San Lau, Edward J Kennelly
Garcinia xanthochymus fruits are edible and also used in traditional medicine. Our previous work showed that the isolated natural products from G. xanthochymus fruits have displayed antioxidant activity and cytotoxicity in the colon cancer cells. In this study, we developed a strategy to correlate a zebrafish angiogenesis assay with ultra-performance liquid chromatography quadrupole time of flight mass spectrometry-based chemometric analysis to identify potential anti-angiogenic activity compounds from G. xanthochymus fruits...
September 19, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28925892/natural-active-compounds-from-plant-food-and-chinese-herbal-medicine-for-nonalcoholic-fatty-liver-disease
#6
Qian Liu, Lixin Zhu, Chen Cheng, Yiyang Hu, Qin Feng
Nonalcoholic fatty liver disease (NAFLD) has become more prevalent worldwide. It is often associated with some metabolic diseases, such as obesity, type 2 diabetes, and metabolic syndrome. With increasing focus on the treatment of fatty liver, much attention has been paid to numerous medicinal herbs and dietary substances to provide a new strategy for NAFLD treatment. The natural active compounds from the herbs or diet have been studied as promising treatments for NAFLD. This study aimed to summarize the use and mechanism of action of natural active compounds in the treatment of NAFLD in the recent 10 years...
September 18, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/28925869/perspectives-of-plant-natural-products-in-inhibition-of-cancer-invasion-and-metastasis-by-regulating-multiple-signaling-pathways
#7
Md Shahid Sarwar, Hong-Jie Zhang, Siu Wai Tsang
Metastasis is often derived from increased invasion and migration of tumor cells, and is the most frequent cause of cancer-associated death. Either the prophylactic or therapeutic treatment of metastatic cancer remains very challenging today by virtue of the complex histopathology and genetic or epigenetic variations. Medicinal scientists had discovered many potential anti-invasive and anti-metastatic compounds from plant materials. However, data on currently available plant-based compounds inhibiting cancer invasion and metastasis is relatively scanty and no published article has been found with updated information in this unique and important aspect...
September 18, 2017: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/28925141/-research-progress-on-standardization-study-of-nir-spectroscopy-based-method-for-quality-control-of-traditional-chinese-medicine
#8
Wen-Long Li, Hai-Bin Qu
In recent years, the near infrared (NIR) spectroscopy has gained wide acceptance within the quantitative analysis of traditional Chinese medicine (TCM). However, the lack of technical standards is the bottleneck problem in this process. To address this issue, standardization study of the NIR spectroscopy based method for the quantitative analysis of TCM is needed, in which the specific characteristics of TCM should be given full considerations. The main research contents include:the scope definition for the application of NIR spectroscopy in the TCM quantitative analysis field, the selection criteria for the sample pretreatment and spectral acquisition conditions, the rules for the model optimization and evaluation, and the regulations for the model update and transfer...
October 2016: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/28924501/identification-and-analysis-of-cyp450-genes-from-transcriptome-of-lonicera-japonica-and-expression-analysis-of-chlorogenic-acid-biosynthesis-related-cyp450s
#9
Xiwu Qi, Xu Yu, Daohua Xu, Hailing Fang, Ke Dong, Weilin Li, Chengyuan Liang
BACKGROUND: Lonicera japonica is an important medicinal plant that has been widely used in traditional Chinese medicine for thousands of years. The pharmacological activities of L. japonica are mainly due to its rich natural active ingredients, most of which are secondary metabolites. CYP450s are a large, complex, and widespread superfamily of proteins that participate in many endogenous and exogenous metabolic reactions, especially secondary metabolism. Here, we identified CYP450s in L...
2017: PeerJ
https://www.readbyqxmd.com/read/28923290/use-of-adult-sensory-panel-to-study-individual-differences-in-the-palatability-of-a-pediatric-hiv-treatment-drug
#10
Julie A Mennella, Phoebe S Mathew, Elizabeth D Lowenthal
PURPOSE: The recommended first-line treatment for young children infected with HIV includes the liquid formulation of the co-formulated protease inhibitors lopinavir/ritonavir (Kaletra(®) [Abbott Laboratories, Chicago, Illinois]). Clinical reports indicate that some children readily accept the taste of Kaletra, whereas others strongly reject it, which can deter therapeutic adherence and outcomes. METHODS: As a proof-of-concept approach, a sensory panel of genotyped adults was used to document the range of individual differences in the taste and palatability (hedonics) of the liquid formulation of Kaletra and other taste stimuli, including common excipients...
September 15, 2017: Clinical Therapeutics
https://www.readbyqxmd.com/read/28922989/extracellular-vesicles-and-their-versatile-roles-in-tissue-engineering
#11
Steven M Jay, Gordana Vunjak-Novakovic
The importance of extracellular vesicles (EVs) - especially exosomes - in tissue engineering continues to increase due to their pivotal roles in intercellular signaling in a plethora of biological contexts, which informs both regenerative medicine approaches as well as modeling of disease (1, 2). In this Special Issue of Tissue Engineering Part A, entitled "Emerging Impact of Extracellular Vesicles on Tissue Engineering and Regeneration", we present novel research contributions from 8 different laboratories from around the world that accentuate the diverse nature of the impact of extracellular vesicles on the field...
September 19, 2017: Tissue Engineering. Part A
https://www.readbyqxmd.com/read/28922975/bioengineered-submucosal-organoids-for-in-vitro-modeling-of-colorectal-cancer
#12
Mahesh Devarasetty, Aleksander Skardal, Kyle Cowdrick, Frank Marini, Shay Soker
The physical nature of the tumor microenvironment significantly impacts tumor growth, invasion and response to drugs. Most in vitro tumor models are designed to study the effects of extracellular matrix (ECM) stiffness on tumor cells, while not addressing the effects of ECM's specific topography. In this study we bioengineered submucosal organoids, using primary smooth muscle cells (SMCs) embedded in collagen I (Col I) hydrogel, which produce aligned and parallel fiber topography similar to those found in vivo...
September 19, 2017: Tissue Engineering. Part A
https://www.readbyqxmd.com/read/28922722/molecular-mechanisms-of-anticancer-effects-of-glucosamine
#13
REVIEW
Fatemeh Zahedipour, Razieh Dalirfardouei, Gholamreza Karimi, Khadijeh Jamialahmadi
Glucosamine is an amino sugar that is produced naturally in human body. It is an essential carbohydrate component of many cellular glycoproteins, glycolipids, and glycosaminoglycans (GAGs). This popular over-the-counter supplement is also found in the exoskeleton of crustaceans. Glucosamine and its derivatives have a long history in medicine for inflammatory conditions specially to relieve arthritis. This dietary supplement has numerous biological and pharmacological properties, including anti-inflammatory, antioxidant, anti-aging, anti-fibrotic, neuroprotective and cardioprotective activities...
September 13, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28922494/magnetic-nanotransducers-in-biomedicine
#14
Agostina Grillone, Gianni Ciofani
Owing to their abilities to identify diseased conditions, to modulate biological process, and to control cellular activities, magnetic nanoparticles have become one of the most popular nanomaterials exploited in the biomedical field. Targeted drug delivery, controlled drug release, hyperthermia treatments, imaging, and stimulation of several biological entities are just some of the several tasks that can be accomplished by taking advantage of magnetic nanoparticles in tandem with magnetic fields. The huge interest towards this class of nanomaterials rises from the possibility to physically drive their spatiotemporal localization inside the body, and to deliver an externally applied stimulation at a target site...
September 18, 2017: Chemistry: a European Journal
https://www.readbyqxmd.com/read/28921954/remote-late-stage-oxidation-of-aliphatic-c-h-bonds-in-amide-containing-molecules
#15
Takeshi Nanjo, Emilio Carlos de Lucca, M Christina White
Amide-containing molecules are ubiquitous in natural products, pharmaceuticals, and materials science. Due to their intermediate electron-richness, they are not amenable to any of the previously developed N-protection strategies known to enable remote aliphatic C-H oxidations. Using information gleaned from a systematic study of the main features that makes remote oxidations of amides in peptide settings possible, we developed an imidate salt protecting strategy that employs methyl trifluoromethanesulfonate (MeOTf) as a reversible alkylating agent...
September 18, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28921637/to-serve-or-not-to-serve-ethical-and-policy-implications
#16
Leonard A Jason
The Institute of Medicine (IOM) is one of the nation's more influential health-related non-profit organizations. It plays a large role in shaping health policy by commissioning panels to develop "white papers" describing research and recommendations on a variety of health topics. These white paper publications are often used to help make policy decisions at the legislative and executive levels. Such a prominent institution might seem like a natural ally for policy-related collaborative efforts. As community psychologists, we strongly endorse efforts to positively influence public policy at the national level...
September 18, 2017: American Journal of Community Psychology
https://www.readbyqxmd.com/read/28921579/material-basis-studies-of-anti-influenza-a-active-ingredients-in-tanreqing-injection
#17
Haiyan Zhu, Mingchang Chen, Xunlong Shi, Chenchen Shi, Chenggang Huang
Tanreqing Injection (TRQ) has been used primarily in treating infections of the upper respiratory tract and serious influenza in China, as a classical compound herbal recipe. TRQ had been demonstrated its effects of clearing heat, eliminating phlegm, detoxification, reducing inflammation and alleviating cough. The survival rate, histopathology of lungs and viral titers in mice were evaluated in this study to verify the curative effect of TRQ. However, there is not enough information about the components. In the present study, a high-performance and practical LC/QTOF/MS method was developed for characterization and identification of the natural ingredients in TRQ...
September 15, 2017: Biomedical Chromatography: BMC
https://www.readbyqxmd.com/read/28921053/herbs-used-for-the-treatment-of-hypertension-and-their-mechanism-of-action
#18
REVIEW
Steven G Chrysant, George S Chrysant
There is great interest lately, in the use of herbs for the treatment of hypertension and cardiovascular disease (CVD). Herbs and plants contain many phytochemicals that have been effective in the treatment of CVD and hypertension. Accumulating scientific evidence provides a reason for the use of herbs by health practitioners for treating their patients. The rationale for this expanding use of herbs is the belief of patients in a "holistic medicine" and that herbs are natural, safe, and effective. However, there are reasons of concern with the use of herbs, because they are not regulated or supervised carefully and their use could lead to serious complications or interactions with their combination with traditional medicines...
September 18, 2017: Current Hypertension Reports
https://www.readbyqxmd.com/read/28920452/challenges-and-opportunities-in-bioanalytical-support-for-gene-therapy-medicinal-product-development
#19
Mark Ma, Nanda Balasubramanian, Robert Dodge, Yan Zhang
Gene and nucleic acid therapies have demonstrated patient benefits to address unmet medical needs. Beside considerations regarding the biological nature of the gene therapy, the quality of bioanalytical methods plays an important role in ensuring the success of these novel therapies. Inconsistent approaches among bioanalytical labs during preclinical and clinical phases have been observed. There are many underlying reasons for this inconsistency. Various platforms and reagents used in quantitative methods, lacking of detailed regulatory guidance on method validation and uncertainty of immunogenicity strategy in supporting gene therapy may all be influential...
September 18, 2017: Bioanalysis
https://www.readbyqxmd.com/read/28920157/mechanisms-of-cancer-cell-killing-by-sea-cucumber-derived-compounds
#20
REVIEW
Teresa Liliana Wargasetia, Widodo
The aim of cancer therapy is to specifically eradicate tumor cells while causing minimal damage to normal tissues and minimal side-effects. Because of this, the use of natural substances with low toxicity is a good option. Sea cucumbers are one of many potential marine animals that contain valuable nutrients and medicinal properties. The medicinal value of sea cucumbers is attributed to the presence of bioactive agents with promising biological and pharmacological properties that include cytotoxic activity, induction of apoptosis, cell cycle arrest, inhibition of tumor growth, anti-metastatic and anti-angiogenic properties, and inhibition of drug resistance...
September 18, 2017: Investigational New Drugs
keyword
keyword
26681
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"