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https://www.readbyqxmd.com/read/28734664/ph-responsive-biodegradable-nanogels-for-sustained-release-of-bleomycin
#1
Prashant Sahu, Sushil K Kashaw, Varun Kushwah, Samaresh Sau, Sanyog Jain, Arun K Iyer
Site specific drug delivery with desired therapeutic effect still remains challenging task due to suboptimal release, tissue toxicity, low selectivity and meager therapeutic efficacy in skin cancers. The aim of the current study was to fabricate pH responsive, self-assembled, chemically cross-linked biodegradable chitosan nanogel loaded with bleomycin to target the dermal area of the skin. The nanogel synthesized by ion gelation technique and was characterized for drug loading, swelling and thermal stability followed by in vitro analysis...
June 27, 2017: Bioorganic & Medicinal Chemistry
https://www.readbyqxmd.com/read/28707330/the-impact-of-dialysis-modality-and-membrane-characteristics-on-intradialytic-hypotension
#2
Samir Patel, Jochen G Raimann, Peter Kotanko
The risk of intradialytic hypotension (IDH) is determined by various factors, among them dialysis modality and dialyzer membrane. We conducted a literature search in PubMed on November 1, 2016 and selected relevant randomized controlled and cross-over trials, and prospective and retrospective cohort studies published in English that investigated the association between IDH and dialysis modality and membrane, respectively. This literature search revealed 669 publications on dialysis modality, 64 on dialysis membrane, and 24 on acetate/bicarbonate dialysate...
July 13, 2017: Seminars in Dialysis
https://www.readbyqxmd.com/read/28707264/evaluation-of-propylene-glycol-nanoliposomes-containing-curcumin-on-burn-wound-model-in-rat-biocompatibility-wound-healing-and-anti-bacterial-effects
#3
Nooshin Kianvash, Abbas Bahador, Maryam Pourhajibagher, Homanaz Ghafari, Vahid Nikoui, Sayed Mehdi Rezayat, Ahmad Reza Dehpour, Alireza Partoazar
Curcumin is an effective wound healing agent in burn therapy, but due to its low bioavailability, it is required to be formulated for topical therapy. Liposomal nanocarriers are developed as stable and efficient dermal delivery systems. In this study, we prepared curcumin-propylene glycol liposomes (Cur-PgL) to treat animals subjected to second degree burns. The characterization tests confirmed the production of monodisperse nanoliposomes of average size of about 145 nm with high entrapment efficiency percentage and a sustained release behavior...
July 13, 2017: Drug Delivery and Translational Research
https://www.readbyqxmd.com/read/28700186/-the-treatment-of-aki-in-nephrology-hospitalization-the-sle-hdf-15-litres-in-10-hours
#4
REVIEW
Marcello Napoli, Maria Luisa Lefons, Giovanni Sandri, Efisio Sozzo, Carmela Ambrosino
The AKI in intensive care has been widely treated by international and national guidelines. The treatment of AKI in patients not requiring admission in Intensive Care Unit, but often hospitalized in Nephrology Unit, it is showed of less relevance. For over 5 years we have used for the treatment of AKI of patients admitted in Nephrology Unit an intermittent slow technique, implemented in approximately 600 patients with AKI for a total of about 3000 treatments. In this study we report the clinical results obtained in 100 consecutive patients referred to our Nephrology Unit from 1st January 2014...
June 2017: Giornale Italiano di Nefrologia: Organo Ufficiale Della Società Italiana di Nefrologia
https://www.readbyqxmd.com/read/28685358/asymmetric-triacetate-membrane-keeps-high-water-flux-during-ultrafiltration-in-vitro-study
#5
Yoshihiro Tange, Shingo Takesawa, Shigenori Yoshitake
Membrane fouling is a primary challenge encountered during the administration of hemodialysis (HD) and hemodiafiltration (HDF). A high-flux membrane is suitable for dialyzer reuse, since it is used repeatedly. Water flux is a benchmark used to assess the effectiveness of the dialysis membrane during treatment and it is usually evaluated to determine whether membrane fouling has occurred. Polysulfone (PS) membrane has good biocompatibility and solute permeability; however, polyethersulfone (PES) is often used as a hemodiafilter membrane because of better hydrophilicity compared to PS...
July 6, 2017: Journal of Artificial Organs: the Official Journal of the Japanese Society for Artificial Organs
https://www.readbyqxmd.com/read/28672990/effects-of-conditioned-medium-from-ll-37-treated-adipose-stem-cells-on-human-fibroblast-migration
#6
Eun-Jung Yang, Sa-Ik Bang
Adipose stem cell-conditioned medium may promote human dermal fibroblast (HDF) proliferation and migration by activating paracrine peptides during the re-epithelization phase of wound healing. Human antimicrobial peptide LL-37 is upregulated in the skin epithelium as part of the normal response to injury. The effects of conditioned medium (CM) from LL-37 treated adipose stem cells (ASCs) on cutaneous wound healing, including the mediation of fibroblast migration, remain to be elucidated, therefore the aim of the present study was to determine how ASCs would react to an LL-37-rich microenvironment and if CM from LL-37 treated ASCs may influence the migration of HDFs...
July 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28671593/high-consumption-of-iron-exacerbates-hyperlipidemia-atherosclerosis-and-female-sterility-in-zebrafish-via-acceleration-of-glycation-and-degradation-of-serum-lipoproteins
#7
So-Hee Kim, Dhananjay Yadav, Suk-Jeong Kim, Jae-Ryong Kim, Kyung-Hyun Cho
Elevated serum iron level is linked with an increased risk of diabetes and atherosclerosis. However, the pathological mechanism by which iron affects serum lipoprotein levels is unknown. To elucidate the mechanism, a high dose of ferrous ion was applied (final 60 µM, 120 µM) to human serum lipoproteins, macrophages, and human dermal fibroblast (HDF) cells. Iron-treated lipoproteins showed loss of antioxidant ability along with protein degradation and multimerization, especially co-treatment with fructose (final 10 mM)...
July 2, 2017: Nutrients
https://www.readbyqxmd.com/read/28655305/effect-of-pomegranate-extracts-on-brain-antioxidant-markers-and-cholinesterase-activity-in-high-fat-high-fructose-diet-induced-obesity-in-rat-model
#8
Zahra Amri, Asma Ghorbel, Mouna Turki, Férièle Messadi Akrout, Fatma Ayadi, Abdelfateh Elfeki, Mohamed Hammami
BACKGROUND: To investigate beneficial effects of Pomegranate seeds oil (PSO), leaves (PL), juice (PJ) and (PP) on brain cholinesterase activity, brain oxidative stress and lipid profile in high-fat-high fructose diet (HFD) induced-obese rat. METHODS: In vitro and in vivo cholinesterase activity, brain oxidative status, body and brain weight and plasma lipid profile were measured in control rats, HFD-fed rats and HFD-fed rats treated by PSO, PL, PJ and PP. RESULTS: In vitro study showed that PSO, PL, PP, PJ inhibited cholinesterase activity in dose dependant manner...
June 27, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28654917/hypertriglyceridemia-in-female-rats-during-pregnancy-induces-obesity-in-male-offspring-via-altering-hypothalamic-leptin-signaling
#9
Tanzil Ur Rahman, Kamran Ullah, Zhang-Hong Ke, Meng-Xi Guo, Lu-Yang Jin, Jun Ren, Yu-Zhong Zhou, Yi Cheng, Xin-Yan Dong, Hai-Yan Pang, Ting-Ting Wang, Jian-Zhong Sheng, He-Feng Huang
Maternal obesity influence the child's long-term development and health. Though, the mechanism concerned in this process is still uncertain. In the present study, we explored whether overfeeding of a high-fat diet during pregnancy in female rats altered metabolic phenotypes in an F1 generation and authenticated the contribution of hypothalamic leptin signaling. Leptin responsiveness and the number of immunopositive neurons for phosphorylated signal transducer and activator transcription 3 (pSTAT3) were analyzed...
June 16, 2017: Oncotarget
https://www.readbyqxmd.com/read/28644845/lipo-pge1-suppresses-collagen-production-in-human-dermal-fibroblasts-via-the-erk-ets-1-signaling-pathway
#10
Yoolhee Yang, Hee Jung Kim, Kyong-Je Woo, Daeho Cho, Sa Ik Bang
Dysregulation of collagen production contributes to various pathological processes, including tissue fibrosis as well as impaired wound healing. Lipo-prostaglandin E1 (Lipo-PGE1), a lipid microsphere-incorporated prostaglandin E1, is used as a vasodilator for the treatment of peripheral vascular diseases. Lipo-PGE1 was recently shown to enhance human dermal fibroblast (HDF) migration and in vivo wound healing. No published study has characterized the role of Lipo-PGE1 in collagen regulation in HDFs. Here, we investigated the cellular signaling mechanism by which Lipo-PGE1 regulates collagen in HDFs...
2017: PloS One
https://www.readbyqxmd.com/read/28643415/cultivation-of-human-dermal-fibroblasts-and-epidermal-keratinocytes-on-keratin-coated-silica-bead-substrates
#11
Bee Yi Tan, Luong T H Nguyen, Hyo-Sop Kim, Jae-Ho Kim, Kee Woei Ng
Human hair keratin is promising as a bioactive material platform for various biomedical applications. To explore its versatility further, human hair keratin was coated onto monolayers of silica beads to produce film-like substrates. This combination was hypothesized to provide a synergistic effect in improving the biochemical properties of the resultant composite. Atomic Force Microscopy analysis showed uniform coatings of keratin on the silica beads with a slight increase in the resulting surface roughness...
June 23, 2017: Journal of Biomedical Materials Research. Part A
https://www.readbyqxmd.com/read/28640578/insect-analogue-to-the-lotus-leaf-a-planthopper-wing-membrane-incorporating-a-low-adhesion-nonwetting-superhydrophobic-bactericidal-and-biocompatible-surface
#12
Gregory S Watson, David W Green, Bronwen W Cribb, Christopher L Brown, Christopher R Meritt, Mark J Tobin, Jitraporn Vongsvivut, Mingxia Sun, Ai-Ping Liang, Jolanta A Watson
Nature has produced many intriguing and spectacular surfaces at the micro- and nanoscales. These small surface decorations act for a singular or, in most cases, a range of functions. The minute landscape found on the lotus leaf is one such example, displaying antiwetting behavior and low adhesion with foreign particulate matter. Indeed the lotus leaf has often been considered the "benchmark" for such properties. One could expect that there are animal counterparts of this self-drying and self-cleaning surface system...
July 19, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28627622/human-amnion-derived-mesenchymal-stem-cells-protect-against-uva-irradiation-induced-human-dermal-fibroblast-senescence-in%C3%A2-vitro
#13
Chunli Zhang, Haishen Yuchi, Lu Sun, Xiaoli Zhou, Jinde Lin
The aim of the present study was to determine if human amnion‑derived mesenchymal stem cells (HAMSCs) exert a protective effect on ultraviolet A (UVA) irradiation-induced human dermal fibroblast (HDF) senescence. A senescence model was constructed as follows: HDFs (104‑106 cells/well) were cultured in a six‑well plate in vitro and then exposed to UVA irradiation at 9 J/cm2 for 30 min. Following the irradiation period, HDFs were co‑cultured with HAMSCs, which were seeded on transwells. A total of 72 h following the co‑culturing, senescence‑associated β‑galactosidase staining was performed and reactive oxygen species (ROS) content and mitochondrial membrane potential (Δψm) were detected in the HDFs via flow cytometric analysis...
August 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28619269/comparing-effects-of-cervical-anterior-approach-and-laminoplasty-in-surgical-management-of-cervical-ossification-of-posterior-longitudinal-ligament-by-a-prospective-nonrandomized-controlled-study
#14
Yang Hou, Lei Liang, Guodong Shi, Peng Xu, Guohua Xu, Jiangang Shi, Wen Yuan
INTRODUCTION: The laminoplasty has been the most widely used surgical method for OPLL. In recent years, increasing attention has been drawn to the anterior operative approaches for surgical treatment of cervical OPLL. However, which method is the optimum selection for therapy of cervical OPLL is still obscure. Therefore, we performed this prospective nonrandomized clinical studyin patients with multilevelcervical myelopathydue to OPLL and compare thetherapeutic efficiencyof laminoplastyand anterior approach (cervical discectomy and/or cervicalcorpectomy) in the management of multi-level cervical OPLL...
June 12, 2017: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/28608319/amelioration-of-obesity-related-characteristics-by-a-probiotic-formulation-in-a-high-fat-diet-induced-obese-rat-model
#15
Joo-Hyun Shin, Myung Hee Nam, Hyerim Lee, Joong-Su Lee, Hojun Kim, Myung-Jun Chung, Jae-Gu Seo
PURPOSE: Obesity is a major public health concern. Despite its multi-factorial etiology, alterations in intestinal microbiota and the immune system are frequently observed. We investigated the effect of Duolac Gold (DG), a probiotic formulation containing 2 Lactobacillus strains (L. acidophilus LA1 and L. rharmnosus LR5), 3 Bifidobacterium (B. bifidum BF3, B. lactis BL3, and B. longum BG7), and Streptococcus thermophilus ST3, on morphometric and metabolic parameters, intestinal microbiota, and intestinal immune responses in a high-fat diet (HFD)-induced obese rat model...
June 12, 2017: European Journal of Nutrition
https://www.readbyqxmd.com/read/28599308/an-ultra-sensitive-biophysical-risk-assessment-of-light-effect-on-skin-cells
#16
Devasier Bennet, Buddolla Viswanath, Sanghyo Kim, Jeong Ho An
The aim of this study was to analyze photo-dynamic and photo-pathology changes of different color light radiations on human adult skin cells. We used a real-time biophysical and biomechanics monitoring system for light-induced cellular changes in an in vitro model to find mechanisms of the initial and continuous degenerative process. Cells were exposed to intermittent, mild and intense (1-180 min) light with On/Off cycles, using blue, green, red and white light. Cellular ultra-structural changes, damages, and ECM impair function were evaluated by up/down-regulation of biophysical, biomechanical and biochemical properties...
May 24, 2017: Oncotarget
https://www.readbyqxmd.com/read/28593881/differential-hemoglobin-a-sequestration-between-hemodialysis-modalities
#17
Uzma Naseeb, Shamshad Zarina, Theres Jägerbrink, Jawed Shafqat, Hans Jörnvall, Jonas Axelsson
This report evaluates plasma protein patterns, dialysates and protein analysis of used dialysis membranes from the same patient under hemodialysis in three separate modalities, using high-flux membranes in concentration-driven transport (HD), convection-driven hemofiltration (HF) and combined hemodialfiltration (HDF). The plasma protein changes induced by each of the three dialysis modalities showed small differences in proteins identified towards our previous plasma analyses of chronic kidney disease (CKD) patients...
April 19, 2017: Biomolecular Concepts
https://www.readbyqxmd.com/read/28587261/ulmus-macrocarpa-hance-extracts-attenuated-h%C3%A2-o%C3%A2-and-uvb-induced-skin-photo-aging-by-activating-antioxidant-enzymes-and-inhibiting-mapk-pathways
#18
Sun-Il Choi, Jin-Ha Lee, Jae-Min Kim, Tae-Dong Jung, Bong-Yeon Cho, Seung-Hyun Choi, Dae-Won Lee, Jinkyung Kim, Jong-Yea Kim, Ok-Hawn Lee
To protect from reactive oxygen species (ROS) damages, skin cells have evolved to have antioxidant enzymes, such as copper and zinc-dependent superoxide dismutase (SOD1), mitochondrial manganese-dependent superoxide dismutase (SOD2), catalase (CAT), glutathione peroxidase (GPX), and glutathione reductase (GR), and suppressed the expression of matrix metalloproteinases (MMPs) through the mitogen-activated protein kinase (MAPK) signaling pathways, such as c-Jun N-terminal kinase (JNK) and p38. Bioactive compounds analyses were performed using a high-performance liquid chromatography-photodiode array detector (HPLC-PDA) system...
June 5, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28571019/high-flux-dialysis-clinical-biochemical-and-proteomic-comparison-with-low-flux-dialysis-and-on-line-hemodiafiltration
#19
Carlo Donadio, Angeliki Kanaki, Nadia Sami, Danika Tognotti
Hemodiafiltration on-line (on-line HDF) is a more efficient treatment than low-flux hemodialysis (HD). Unfortunately, it cannot be proposed to all patients. The aim of this study was to evaluate the safety, efficiency, and mechanisms of removal of toxins with high-flux HD vs. low-flux HD and on-line HDF. Randomized cross-over study designed to evaluate efficiency and tolerability of high-flux HD vs. low-flux HD in aged patients; to compare by means of biochemical and proteomic analyses the efficiency and mechanisms of removal of toxins with high-flux HD vs...
2017: Blood Purification
https://www.readbyqxmd.com/read/28566621/dual-protective-effects-of-flavonoids-from-petasites-japonicus-against-uvb-induced-apoptosis-mediated-via-hsf-1-activated-heat-shock-proteins-and-nrf2-activated-heme-oxygenase-1-pathways
#20
Ki Mo Kim, A-Rang Im, Sanghyun Lee, Sungwook Chae
The leaves of Petasites japonicus are used for their anti-allergic properties in traditional Korean, Japanese, and Chinese medicine. This study aimed to identify bioactive compounds isolated from P. japonicus leaves. All compounds were assessed for their ability of transcriptional activation, induction of phase 2 enzymes and heat shock proteins (HSPs), as well as protection against the UVB-induced apoptotic cell death. Bioactive compounds were isolated from P. japonicus leaves. All compounds were evaluated for their protective effect using human dermal fibroblasts (HDF) and human epidermal keratinocyte cells (HEKC) treated with UVB radiation...
2017: Biological & Pharmaceutical Bulletin
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