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https://www.readbyqxmd.com/read/28532120/ultra-small-silver-nanoparticles-induced-ros-activated-toll-pathway-against-staphylococcus-aureus-disease-in-silkworm-model
#1
Pala Rajasekharreddy, Pathipati Usha Rani, Saidulu Mattapally, Sanjay Kumar Banerjee
The present study investigated the therapeutic action of flavonoids loaded silver nanoparticles (FLV-Ag NPs) on a silkworm, Bombyx mori L., larvae infected by the S. aureus, where an in vivo model system was used. FLV-Ag NPs were synthesized using a Ricinus communis L. leaf extracted flavonoid mixture in various concentrations. The reduction reaction was performed under a simple sunlight exposure condition. In the reduction process, quercetin and kaempferol loadings were also found. They were confirmed by UV-visible, TEM, XRD, XPS, DLS and FTIR spectroscopic techniques...
August 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28532051/chitosan-folate-decorated-carbon-nanotubes-for-site-specific-lung-cancer-delivery
#2
Rahul Pratap Singh, Gunjan Sharma, Sonali, Sanjay Singh, Shreekant Bharti, Bajarangprasad L Pandey, Biplob Koch, Madaswamy S Muthu
The aim of this work was to formulate chitosan-folate conjugated multi-walled carbon nanotubes for the lung cancer targeted delivery of docetaxel. The chitosan-folate conjugate was synthesized and the conjugation was confirmed by Fourier transform infrared spectroscopy. The multi-walled carbon nanotubes were characterized for their particle size, polydispersity, zeta potential, surface morphology, drug encapsulation efficiency and in vitro release study. The in vitro cellular uptake, cytotoxicity, and cell cycle analysis of the docetaxel/coumarin-6 loaded multi-walled carbon nanotubes were carried out to compare the effectiveness of the formulations...
August 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28531961/challenges-in-photocatalytic-reduction-of-nitrate-as-a-water-treatment-technology
#3
Heather O'Neal Tugaoen, Sergi Garcia-Segura, Kiril Hristovski, Paul Westerhoff
Management of ubiquitous nitrate contamination in drinking water sources is a major engineering challenge due to its negative impacts from eutrophication to immediate risk to human health. Several water treatment technologies exist to manage nitrate pollution in water sources. However, the most widely used technologies are phase separation treatments. In this context, nanoscale photocatalysis emerges as a highly promising transformative technology capable of reducing nitrate to innocuous nitrogen with noticeable selectivity...
May 17, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28531946/the-role-of-mobilisation-and-delivery-processes-on-contrasting-dissolved-nitrogen-and-phosphorus-exports-in-groundwater-fed-catchments
#4
Rémi Dupas, Per-Erik Mellander, Chantal Gascuel-Odoux, Ophélie Fovet, Eoin B McAleer, Noeleen T McDonald, Mairead Shore, Phil Jordan
Diffuse transfer of nitrogen (N) and phosphorus (P) in agricultural catchments is controlled by the mobilisation of sources and their delivery to receiving waters. While plot scale experiments have focused on mobilisation processes, many catchment scale studies have hitherto concentrated on the controls of dominant flow pathways on nutrient delivery. To place mobilisation and delivery at a catchment scale, this study investigated their relative influence on contrasting nitrate-N and soluble P concentrations and N:P ratios in two shallow groundwater fed catchments with different land use (grassland and arable) on the Atlantic seaboard of Europe...
May 17, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28531945/spp1-analyzed-by-bioinformatics-methods-promotes-the-metastasis-in-colorectal-cancer-by-activating-emt-pathway
#5
Chunjie Xu, Longci Sun, Chunhui Jiang, Hong Zhou, Lei Gu, Ye Liu, Qing Xu
OBJECTIVE: Tumor metastasis is still a great challenge for the prognosis of colorectal cancer (CRC). Although secreted phosphoprotein 1 (SPP1) over-expression is confirmed to associate with invasion, metastasis of CRC, the underlying mechanism by which modulates the CRC metastasis is still not fully explained. METHOD: GDS4382 was obtained from GEO database and differentially expressed genes (DEGs) were analyzed by bioinformatics methods 55 paired samples of CRC and adjacent non-cancerous tissues were collected to detect the expression of SPP1 by q-PCR and western blot...
May 17, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28531942/target-signalling-pathways-of-natural-plant-derived-radioprotective-agents-from-treatment-to-potential-candidates-a-reverse-thought-on-anti-tumour-drugs
#6
REVIEW
Ke-Li Yun, Zhen Yu Wang
Radiation damage can occur in nuclear power plant workers when physical protections fail, which results in nuclear leakage through the protective layers. Alternatively, workers may be unable to use physical protection in time (in the case of a sudden nuclear weapons attack). In addition, patients who receive local radiotherapy and are not allowed to adopt local physical protection may experience radiation damage. Thus, protection against chemical radiation has become indispensable. In view of the side effects caused by synthetic radioprotective agents (such as amisfostine), searching for radioprotective agents from plant sources is an alternative strategy...
May 17, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28531921/hesperetin-post-treatment-prevents-rat-cardiomyocytes-from-hypoxia-reoxygenation-injury-in-vitro-via-activating-pi3k-akt-signaling-pathway
#7
Shangfei He, Xianbao Wang, Yongkang Zhong, Lu Tang, Ya Zhang, Yuanna Ling, Zhipeng Tan, Pingzhen Yang, Aihua Chen
Hesperidin (HES), a citrus fruit extract, has beneficial effects on various ischemia/reperfusion (I/R) models. Here, we investigated the possible positive effect of hesperetin (HPT), an active metabolite of HES, and identified the potential molecular mechanisms involved in cardiomyocytes H/R-induced injury. To construct the cardiomyocyte model of hypoxia/reoxygenation (H/R) injury, cultured neonatal rat cardiomyocytes were subjected to 3h of hypoxia followed by 3h of reoxygenation. Cell viability and apoptosis were detected...
May 16, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28531919/bupleurum-chinense-extract-ameliorates-an-ova-induced-murine-allergic-asthma-through-the-reduction-of-the-th2-and-th17-cytokines-production-by-inactivation-of-nf%C3%AE%C2%BAb-pathway
#8
Thi Tho Bui, Chun Hua Piao, Chang Ho Song, Hee Soon Shin, Ok Hee Chai
Bupleurum chinense belongs to the Bupleurum spp. family that has been used in traditional herbal medicine for over thousand years. It has been reported to have anti-inflammatory, anti-oxidant, hepato-protective, antipyretic, analgesic, anti-fibrotic and immunomodulatory effect. However, the effect of B. Chinense on allergic asthma remains unclear. This study investigated the immunomodulatory effects of B. Chinense extracts (BCE) on airway inflammation in asthmatic mice model. In the ovalbumin (OVA)-induced allergic asthma model, we evaluated the number of total cells, differential inflammatory cells and the production of proinflammatory cytokines in bronchoalveolar lavage fluid (BALF) and lung homogenate as well as histological structure...
May 16, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28531916/effects-of-elevated-atmospheric-co2-on-dissolution-of-geological-fluorapatite-in-water-and-soil
#9
Zhen Li, Mu Su, Da Tian, Lingyi Tang, Lin Zhang, Yangfan Zheng, Shuijin Hu
Most of phosphorus (P) is present as insoluble phosphorus-bearing minerals or organic forms in soil. Geological fluorapatite (FAp) is the dominant mineral-weathering source of P. In this study, FAp was added into water and soil under elevated CO2 to investigate the pathway of P release. Two types of soils (an acidic soil from subtropical China and a saline-alkali soil from Tibet Plateau, China) with similar total P content were studied. In the solution, increased CO2 in air enhanced the dissolution of FAp, i...
May 16, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28531897/magnetic-resonance-imaging-of-the-brain-of-a-monotreme-the-short-beaked-echidna-tachyglossus-aculeatus
#10
Sandilya Cherupalli, Craig D Hardman, Andre Bongers, Ken W S Ashwell
We used magnetic resonance imaging to study the anatomy of cortical regions, nuclear groups, and major tracts in the brain of a monotreme, i.e., the short-beaked echidna (Tachyglossus aculeatus). Our specimens were from a collection held at the Australian Museum in Sydney and had been stored in formaldehyde solution for at least 70 years. Despite this, we were able to detect fine detail in the nuclear divisions of structures as well as in fiber tracts. In particular, we could detect the medial lemniscus as it approached the ventral posterior thalamic nucleus, subdivisions within the ventral posterior thalamic nucleus, lamination and subdivisions within the hippocampal formation, components of the olfactory pathways, and nuclei within the temporal amygdala...
May 23, 2017: Brain, Behavior and Evolution
https://www.readbyqxmd.com/read/28531893/association-study-of-serotonin-3-receptor-subunit-gene-variants-in-antipsychotic-induced-weight-gain
#11
Clement C Zai, Arun K Tiwari, Nabilah I Chowdhury, Eva J Brandl, Sajid A Shaikh, Natalie Freeman, Jeffrey A Lieberman, Herbert Y Meltzer, James L Kennedy, Daniel J Müller
BACKGROUND: Schizophrenia (SCZ) is a chronic severe neuropsychiatric disorder, where pharmacological treatment has been hindered by adverse effects, including antipsychotic-induced weight gain (AIWG) and related complications. Genetic studies have been exploring the appetite regulation and energy homeostasis pathways in AIWG with some promising leads. The serotonin system has been shown to participate in these pathways. METHODS: In the current study, we examined single nucleotide polymorphisms across the serotonin receptor genes HTR3A and HTR3B...
May 23, 2017: Neuropsychobiology
https://www.readbyqxmd.com/read/28531854/achieve-efficient-nitrogen-removal-from-real-sewage-in-a-plug-flow-integrated-fixed-film-activated-sludge-ifas-reactor-via-partial-nitritation-anammox-pathway
#12
Yandong Yang, Liang Zhang, Jun Cheng, Shujun Zhang, Baikun Li, Yongzhen Peng
This study tested the feasibility of plug-flow integrated fixed-film activated sludge (IFAS) reactor in applying sewage partial nitritation/anammox (PN/A) process. The IFAS reactor was fed with real pre-treated sewage (C/N ratio=1.3) and operated for 200days. High nitrogen removal efficiency of 82% was achieved with nitrogen removal rates of 0.097±0.019kgN/(m(3)·d). Therefore, plug-flow IFAS reactor could be an alternative to applying sewage PN/A process. Besides, it was found that the stability of sewage PN/A process was significantly affected by residual ammonium...
May 10, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28531812/macrophages-produce-il-33-by-activating-mapk-signaling-pathway-during-rsv-infection
#13
Feifei Qi, Song Bai, Dandan Wang, Lei Xu, Haiyan Hu, Sheng Zeng, Ruonan Chai, Beixing Liu
It has been reported that RSV infection can enhance IL-33 production in lung macrophages. However, little is known about specific signaling pathways for activation of macrophages during RSV infection. In the present study, by using real-time RT-PCR as well as western blot assay, it became clear that RSV infection can enhance not only the expression of mRNAs for MAPK molecules (including p38, JNK1/2, and ERK1/2), but also the levels of MAPK proteins in lung macrophages as well as RAW264.7 cells. Furthermore, infection with RSV resulted in an increased level of phosphorylated MAPK proteins in RAW264...
May 18, 2017: Molecular Immunology
https://www.readbyqxmd.com/read/28531805/troxerutin-txn-potentiated-5-fluorouracil-5-fu-treatment-of-human-gastric-cancer-through-suppressing-stat3-nf-%C3%AE%C2%BAb-and-bcl-2-signaling-pathways
#14
Gui-Yun Xu, Xiao-Jun Tang
Gastric cancer still presents a significant problem for public health worldwide. Troxerutin (TXN), a flavonoid present in tea, coffee, cereal grains, and a variety of fruits and vegetables, exhibits various pharmacological and biological activities in vitro and in vivo. We investigated the ability of TXN to reverse the in vitro and in vivo drug resistance of human gastric cancer cells, which were resistant to treatment of 5-Fluorouracil (5-FU). 5-Fu is a pyrimidine analog, which is widely used in the treatment of cancers...
May 19, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28531803/isofraxidin-inhibited-proliferation-and-induced-apoptosis-via-blockage-of-akt-pathway-in-human-colorectal-cancer-cells
#15
Peng Shen, Hong-Gang Wang, Miao-Miao Li, Qian-Yun Ma, Chuan-Wen Zhou, Feng Pan, Rui Xie
BACKGROUND: Isofraxidin (IF), a natural coumarin compound, has been reported to possess anti-cancer activity in human liver cancer. However, whether IF is involved in the regulation of colorectal cancer tumorigenesis and development has been not well elucidated. METHODS: The cell proliferation were assessed by Cell Counting Kit-8 (CCK-8) and colony formation test, respectively. The transwell assays were conducted to estimate cell migration and invasion abilities...
May 19, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28531801/ace-2-ang1-7-mas-cascade-mediates-ace-inhibitor-captopril-protective-effects-in-estrogen-deficient-osteoporotic-rats
#16
Hatem M Abuohashish, Mohammed M Ahmed, Dina Sabry, Mahmoud M Khattab, Salim S Al-Rejaie
The local role of the renin angiotensin system (RAS) was documented recently beside its conventional systemic functions. Studies showed that the effector angiotensin II (AngII) alters bone health, while inhibition of the angiotensin converting enzyme (ACE-1) preserved these effects. The newly identified Ang1-7 exerts numerous beneficial effects opposing the AngII. Thus, the current study examines the role of Ang1-7 in mediating the osteo-preservative effects of ACEI (captopril) through the G-protein coupled Mas receptor using an ovariectomized (OVX) rat model of osteoporosis...
May 19, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28531799/numb-had-anti-tumor-effects-in-prostatic-cancer
#17
Ji Sun, Kai Wang, Jingfei Teng, Yufu Yu, Runmiao Hua, Haiyong Zhou, Dachuan Zhong, Yi Fan
AIM: The aim of this study was to explain the Numb anti-cancer effects in the prostatic cancer. METHODS: Collecting the 20 prostatic cancer patients and analyzing the correlation between Numb and Glease score. Transfection Numb into DU-145 and PC-3 cells, measuring the proliferation rate of difference groups by MTT assay, evaluating the cell apoptosis and cell cycle of difference group by Flow cytometry; measuring the invasion and migration abilities by transwell and wound healing assays...
May 19, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28531656/biodegradation-of-phthalic-acid-esters-paes-and-in-silico-structural-characterization-of-mono-2-ethylhexyl-phthalate-mehp-hydrolase-on-the-basis-of-close-structural-homolog
#18
Neha Singh, Vikram Dalal, Jai Krishna Mahto, Pravindra Kumar
Three bacterial strains capable of degrading phthalates namely Pseudomonas sp. PKDM2, Pseudomonas sp. PKDE1 and Pseudomonas sp. PKDE2 were isolated and characterized for their degradative potential. These strains efficiently degraded 77.4%-84.4% of DMP, 75.0%-75.7% of DEP and 71.7%-74.7% of DEHP, initial amount of each phthalate is 500mgL(-1) of each phthalate, after 44h of incubation. GC-MS results reveal the tentative DEHP degradation pathway, where hydrolases mediate the breakdown of DEHP to phthalic acid (PA) via an intermediate MEHP...
April 25, 2017: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/28531419/current-practices-and-experience-of-transition-of-young-people-on-long-term-home-parenteral-nutrition-pn-to-adult-services-a-perspective-from-specialist-centres
#19
E Kyrana, S V Beath, S Gabe, M Small, S Hill
BACKGROUND: There has been an estimated fivefold increase in the number of children receiving parenteral nutrition (PN) at home in the past 10 years with some children approaching the age when they should be referred to adult services whilst still on treatment. Models of care for moving young people onto adult providers of PN at home are not yet well developed, and transition is a potentially dangerous time for young people with complex health needs. METHODS: A questionnaire to ascertain current experience and practices of transition in the context of home PN services was dispatched to 170 consultant gastroenterologists who were members of the British Association of Parenteral and Enteral Nutrition (BAPEN) and also to all 40 members of the Nutrition and IF working group of the British Society of Paediatric Gastroenterology and Nutrition (BSPGHAN)...
August 2016: Clinical Nutrition ESPEN
https://www.readbyqxmd.com/read/28531376/immune-cell-signaling-in-autoimmune-diseases
#20
REVIEW
George C Tsokos, Noel R Rose
On September 20, 2016 the American Autoimmune Related Disease Association convened a selected group of 16 experts in Washington DC to discuss current issues and future directions of research in autoimmune diseases from the cell signaling perspective. The major topics considered included new findings on the follicular T cell cells in mice, their metabolic patterns and their control by the newly discovered T follicular regulatory cells. Current work on the metabolic pathways deemed important for the function of T cells was presented...
May 19, 2017: Clinical Immunology: the Official Journal of the Clinical Immunology Society
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