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https://www.readbyqxmd.com/read/29458214/effect-of-tetrahedral-dna-nanostructures-on-proliferation-and-osteo-odontogenic-differentiation-of-dental-pulp-stem-cells-via-activation-of-the-notch-signaling-pathway
#1
Mi Zhou, Nan-Xin Liu, Si-Rong Shi, Yong Li, Qi Zhang, Quan-Quan Ma, Tao-Ran Tian, Wen-Juan Ma, Xiao-Xiao Cai, Yun-Feng Lin
Dental pulp stem cells (DPSCs) derived from the human dental pulp tissue have multiple differentiation capabilities, such as osteo/odontogenic differentiation. Therefore, DPSCs are deemed as ideal stem cell sources for tissue regeneration. As new nanomaterials based on DNA, tetrahedral DNA nanostructures (TDNs) have tremendous potential for biomedical applications. Here, the authors aimed to explore the part played by TDNs in proliferation and osteo/odontogenic differentiation of DPSCs, and attempted to investigate if these cellular responses could be driven by activating the canonical Notch signaling pathway...
February 16, 2018: Nanomedicine: Nanotechnology, Biology, and Medicine
https://www.readbyqxmd.com/read/29457234/community-engagement-and-field-trials-of-genetically-modified-insects-and-animals
#2
Carolyn P Neuhaus
New techniques for the genetic modification of organisms are creating new strategies for addressing persistent public health challenges. For example, the company Oxitec has conducted field trials internationally-and has attempted to conduct field trials in the United States-of a genetically modified mosquito that can be used to control dengue, Zika, and some other mosquito-borne diseases. In 2016, a report commissioned by the National Academies of Sciences, Engineering, and Medicine discussed the potential benefits and risks of another strategy, using gene drives...
January 2018: Hastings Center Report
https://www.readbyqxmd.com/read/29456637/effects-of-astrogaloside-on-the-inflammation-and-immunity-of-renal-failure-patients-receiving-maintenance-dialysis
#3
Renlian Sun, Haiwei Ren, Jianxin Wei
Chronic renal failure is a type of clinical syndrome originating from chronic renal diseases. The aim of the study was to investigate the effect of astrogaloside on the inflammation and immunity of renal failure patients receiving maintenance dialysis. We randomly selected 92 renal failure patients receiving maintenance dialysis who were admitted to hospital for treatment between May, 2015 and April, 2016. Patients were randomly divided into the control (n=46) and observation (n=46) groups. Patients in the control group received the regular dialysis plus the basic treatment in Western medicine, while in the observation group, patients additionally received astrogaloside via intravenous injection as treatment...
March 2018: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29456624/the-case-for-a-regional-approach-to-publication-impact
#4
EDITORIAL
Stevan Bruijns, Camillo Lamanna
Healthcare-related research is largely regional. Put simply, this is because disease burdens differ between world regions. Even global burdens, such as ischaemic heart disease and cancer, display distinctive characteristics in certain regions that are not seen in others. Regional differences in infrastructure, resources and human capital further compound the differences seen, as they affect the way in which the local scientific community can interact with the local disease burden. As such, it seems fair to assume that healthcare-related research ought to be regionally distributed...
2018: Ecancermedicalscience
https://www.readbyqxmd.com/read/29456510/sodium-tanshinone-ii-a-sulfonate-ds-201-induces-vasorelaxation-of-rat-mesenteric-arteries-via-inhibition-of-l-type-ca-2-channel
#5
Xiao-Dong Zhang, Chun-Xia He, Jun Cheng, Jing Wen, Peng-Yun Li, Na Wang, Guang Li, Xiao-Rong Zeng, Ji-Min Cao, Yan Yang
Background: We previously have proved that sodium tanshinone II-A sulfonate (DS-201), a derivative of traditional Chinese medicinal herb Danshen (Salvia miltiorrhiza), is an opener and vasodilator of BKCa channel in the vascular smooth muscle cells (VSMCs). Vascular tension is closely associated with Ca2+ dynamics and activation of BKCa channel may not be the sole mechanism for the relaxation of the vascular tension by DS-201. Therefore, we hypothesized that the vasorelaxing effect of DS-20 may be also related to Ca2+ channel and cytoplasmic Ca2+ level in the VSMCs...
2018: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/29456222/prevalence-and-risk-factors-of-chronic-kidney-disease-in-cote-d-ivoire-an-analytic-study-conducted-in-the-department-of-internal-medicine
#6
Hubert Kouame Yao, Serge Didier Konan, Sindou Sanogo, Sery Patrick Diopoh, Amadou Demba Diallo
Chronic kidney disease (CKD) has become a public health problem because of its increasing prevalence. The objective of this study was to describe the current profile of CKD in our working conditions. This is a descriptive retrospective study of patients admitted for CKD during the period from January 2010 to December 2014 in the Internal Medicine Department of the university hospital of Treichville in Abidjan. CKD was defined by a glomerular filtration rate below 60 mL/min lasting for at least three months...
January 2018: Saudi Journal of Kidney Diseases and Transplantation
https://www.readbyqxmd.com/read/29456027/enhanced-chondrogenesis-differentiation-of-human-induced-pluripotent-stem-cells-by-microrna-140-and-transforming-growth-factor-beta-3-tgf%C3%AE-3
#7
Hossein Mahboudi, Masoud Soleimani, Seyed Ehsan Enderami, Mousa Kehtari, Abdolreza Ardeshirylajimi, Mohamad Eftekhary, Bahram Kazemi
Induced pluripotent stem cells (iPSCs) make an attractive source for regenerative medicine. The objective of our study was to establish a new method for differentiation of human iPSCs toward chondrocyte by overexpression of MicroRNA-140 (miR-140) and use of transforming growth factor beta 3 (TGFβ3) in high-cell density culture systems. We prepared vectors and then was used for recombinant Lenti virus production in HEK-293 cell. Transducted cells were selected and cultured in pellet culture system and were harvested after days 7, 14 and 21...
February 15, 2018: Biologicals: Journal of the International Association of Biological Standardization
https://www.readbyqxmd.com/read/29455921/clinical-and-epidemiological-characteristics-of-intestinal-parasite-infection-by-blastocystis-hominis
#8
C Ocaña-Losada, J A Cuenca-Gómez, M T Cabezas-Fernández, J Vázquez-Villegas, M J Soriano-Pérez, I Cabeza-Barrera, J Salas-Coronas
OBJECTIVES: Blastocystis hominis (B. hominis) is one of the most common intestinal parasites isolated in humans. The parasite can cause gastrointestinal symptoms or, in most cases, remain asymptomatic. There are issues concerning the parasite's pathogenic character. The aim of this study was to analyse the clinical and epidemiological characteristics of the parasite infection by B. hominis, with or without other parasitic co-infections. PATIENTS AND METHODS: An observational retrospective study was conducted of B...
February 15, 2018: Revista Clínica Española
https://www.readbyqxmd.com/read/29455836/the-rigidins-isolation-bioactivity-and-total-synthesis-novel-pyrrolo-2-3-d-pyrimidine-analogues-using-multicomponent-reactions
#9
Aletta E van der Westhuyzen, Liliya V Frolova, Alexander Kornienko, Willem A L van Otterlo
Rigidins (2-6) are pyrrolopyrimidine alkaloids isolated from marine tunicates. Since their isolation, refinement of their total syntheses, and biochemical evaluation, interest toward this pyrrolo[2,3-d]pyrimidine scaffold as a medicinal candidate has been triggered. The derivatization of these natural products has led to the discovery of a novel range of 7-deazahypoxanthines, which exhibit extremely potent anticancer activity in human cancer cell lines. A major breakthrough toward the synthesis of rigidin and various rigidin analogues has been the application of multicomponent reactions (MCRs)...
2018: Alkaloids. Chemistry and Biology
https://www.readbyqxmd.com/read/29455084/nherf1-between-promises-and-hopes-overview-on-cancer-and-prospective-openings
#10
REVIEW
Matteo Centonze, Concetta Saponaro, Anita Mangia
Na+ /H+ exchanger regulatory factor 1 (NHERF1) is a scaffold protein, with two tandem PDZ domains and a carboxyl-terminal ezrin-binding (EB) region. This particular sticky structure is responsible for its interaction with different molecules to form multi-complexes that have a pivotal role in a lot of diseases. In particular, its involvement during carcinogenesis and cancer progression has been deeply analyzed in different tumors. The role of NHERF1 is not unique in cancer; its activity is connected to its subcellular localization...
February 15, 2018: Translational Oncology
https://www.readbyqxmd.com/read/29454912/anticancer-effect-of-petroleum-ether-extract-from-bidens-pilosa-l-and-its-constituent-s-analysis-by-gc-ms
#11
Yiwei Shen, Zhouliang Sun, Peiying Shi, Gang Wang, Youjia Wu, Shaoguang Li, Yanjie Zheng, Liying Huang, Liqing Lin, Xinhua Lin, Hong Yao
ETHNOPHARMACOLOGICAL RELEVANCE: Bidens pilosa L, belonging to the family of Acanthaceae, has been used as an anticancer medicine in folk in China. In our preliminary experiments, the petroleum ether extract from B. pilosa showed good cytotoxic activity to human lung cancer A549 cell. However, to date, it's lack of the further study on antitumor effect, mechanism and active substances composition of the petroleum ether extract of B. pilosa. AIM OF THE STUDY: The study aimed to evaluate the anti-lung cancer efficacy of the petroleum ether extract from B...
February 15, 2018: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/29454196/sexually-transmitted-infections-and-immune-activation-among-hiv-infected-but-virally-suppressed-youth-on-antiretroviral-therapy
#12
Tanya L Kowalczyk Mullins, Su X Li, James Bethel, Maureen M Goodenow, Stephanie Hudey, John W Sleasman
BACKGROUND: Human immunodeficiency virus (HIV) infection is associated with chronic immune activation, and concurrent sexually transmitted infections (STIs) may increase immune activation. OBJECTIVES: Because HIV-infected youth are at high risk of STIs and little is known about the impact of STIs on immune activation in HIV-infected youth, we conducted an exploratory study examining the association between STIs and systemic inflammation and immune activation among HIV-infected adolescents...
February 7, 2018: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
https://www.readbyqxmd.com/read/29453861/virus-like-particle-engineering-from-rational-design-to-versatile-applications
#13
REVIEW
Xuanwei Ding, Dong Liu, George Booth, Wei Gao, Yuan Lu
As mimicking natural virus structures, virus-like particles (VLPs) have evolved to become a widely accepted technology used for humans which are safe, highly efficacious and profitable. Several remarkable advantages have been achieved to revolutionize the molecule delivery for diverse applications in nanotechnology, biotechnology, and medicine. Here, we review the rational structure design, manufacturing process, functionalization strategy, and emerging applications of VLPs. The situation and challenges in the VLP engineering, the key development orientation, and future applications have been discussed...
February 17, 2018: Biotechnology Journal
https://www.readbyqxmd.com/read/29453764/comparative-analysis-of-human-ucb-and-adipose-tissue-derived-mesenchymal-stem-cells-for-their-differentiation-potential-into-brown-and-white-adipocytes
#14
Afrooz Rashnonejad, Gulinnaz Ercan, Cumhur Gunduz, Ali Akdemir, Yigit Ozer Tiftikcioglu
The differentiation potential of umbilical cord blood-derived mesenchymal stem cells (UCB-MSCs) into brown and white adipocytes in comparison to Adipose tissue derived MSCs (AD-MSCs) were investigated in order to characterize their potency for future cell therapies. MSCs were isolated from ten UCB samples and six liposuction materials. MSCs were differentiated into white and brown adipocytes after characterization by flow cytometry. Differentiated adipocytes were stained with Oil Red O and hematoxylin/eosin...
February 16, 2018: Molecular Biology Reports
https://www.readbyqxmd.com/read/29453573/gene-silencing-of-human-sertoli-cells-utilizing-small-interfering-rnas
#15
Hong Wang, Qingqing Yuan, Minghui Niu, Liping Wen, Hongyong Fu, Fan Zhou, Weihui Zhang, Zuping He
Sertoli cells, as the unique somatic cells within the seminiferous tubules, play essential roles in regulating normal spermatogenesis. In addition, recent studies have demonstrated that Sertoli cells could have significant applications in regenerative medicine due to their great plasticity. However, the roles of genes in controlling the fate determinations of human Sertoli cells remain largely unknown. Silencing genes of human Sertoli cells utilizing small interfering RNAs (siRNAs) is an important method to explore their functions and mechanisms in human Sertoli cells...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29453543/toxic-and-beneficial-potential-of-silver-nanoparticles-the-two-sides-of-the-same-coin
#16
Lilian Rodrigues Rosa Souza, Veronica Santana da Silva, Leonardo Pereira Franchi, Tiago Alves Jorge de Souza
Nanotechnology has allowed great changes in chemical, biological and physical properties of metals when compared to their bulk counterparts. Within this context, silver nanoparticles (AgNPs) play a major role due to their unique properties, being widely used in daily products such as fabrics, washing machines, water filters, food and medicine. However, AgNPs can enter cells inducing a "Trojan-horse" type mechanism which potentially leads to cellular autophagy, apoptosis or necrosis. On the other hand, this cytotoxicity mechanism can be optimized to develop drug nanocarriers and anticancer therapies...
2018: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/29453029/systems-biology-of-the-human-microbiome
#17
REVIEW
Beatriz Peñalver Bernabé, Lauren Cralle, Jack A Gilbert
Recent research has shown that the microbiome-a collection of microorganisms, including bacteria, fungi, and viruses, living on and in a host-are of extraordinary importance in human health, even from conception and development in the uterus. Therefore, to further our ability to diagnose disease, to predict treatment outcomes, and to identify novel therapeutics, it is essential to include microbiome and microbial metabolic biomarkers in Systems Biology investigations. In clinical studies or, more precisely, Systems Medicine approaches, we can use the diversity and individual characteristics of the personal microbiome to enhance our resolution for patient stratification...
February 13, 2018: Current Opinion in Biotechnology
https://www.readbyqxmd.com/read/29452950/dynamic-fungal-cell-wall-architecture-in-stress-adaptation-and-immune-evasion
#18
REVIEW
Alex Hopke, Alistair J P Brown, Rebecca A Hall, Robert T Wheeler
Deadly infections from opportunistic fungi have risen in frequency, largely because of the at-risk immunocompromised population created by advances in modern medicine and the HIV/AIDS pandemic. This review focuses on dynamics of the fungal polysaccharide cell wall, which plays an outsized role in fungal pathogenesis and therapy because it acts as both an environmental barrier and as the major interface with the host immune system. Human fungal pathogens use architectural strategies to mask epitopes from the host and prevent immune surveillance, and recent work elucidates how biotic and abiotic stresses present during infection can either block or enhance masking...
February 13, 2018: Trends in Microbiology
https://www.readbyqxmd.com/read/29452699/hypolipidemic-components-from-medicine-food-homology-species-used-in-china-pharmacological-and-health-effects
#19
REVIEW
De-Xing Song, Jian-Guo Jiang
Hyperlipidemia is a systemic disease caused by abnormal human lipid metabolism. Dietary control and treatment on hyperlipidemia is now a popular therapy pathway. This paper focuses on the medicine food homology (MFH) species used in China with hypolipidemic function, and emphasizes on the active ingredients and their pharmacological effect. The single herbal and its hypolipidemic active ingredients are summarized through reviewing the relevant literatures published in the past twenty years. The ingredients are divided into polysaccharides, flavonoids, steroidal saponins, quinones, alkaloids and others, of which the related researches are described from the aspects of sources, model and method, result and mechanisms, respectively...
February 13, 2018: Archives of Medical Research
https://www.readbyqxmd.com/read/29452593/a-review-on-biosynthesis-of-silver-nanoparticles-and-their-biocidal-properties
#20
REVIEW
Khwaja Salahuddin Siddiqi, Azamal Husen, Rifaqat A K Rao
Use of silver and silver salts is as old as human civilization but the fabrication of silver nanoparticles (Ag NPs) has only recently been recognized. They have been specifically used in agriculture and medicine as antibacterial, antifungal and antioxidants. It has been demonstrated that Ag NPs arrest the growth and multiplication of many bacteria such as Bacillus cereus, Staphylococcus aureus, Citrobacter koseri, Salmonella typhii, Pseudomonas aeruginosa, Escherichia coli, Klebsiella pneumonia, Vibrio parahaemolyticus and fungus Candida albicans by binding Ag/Ag + with the biomolecules present in the microbial cells...
February 16, 2018: Journal of Nanobiotechnology
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