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https://www.readbyqxmd.com/read/30470548/zinc-based-biomaterials-for-regeneration-and-therapy
#1
REVIEW
Yingchao Su, Irsalan Cockerill, Yadong Wang, Yi-Xian Qin, Lingqian Chang, Yufeng Zheng, Donghui Zhu
Zinc has been described as the 'calcium of the twenty-first century'. Zinc-based degradable biomaterials have recently emerged thanks to their intrinsic physiological relevance, biocompatibility, biodegradability, and pro-regeneration properties. Zinc-based biomaterials mainly include: metallic zinc alloys, zinc ceramic nanomaterials, and zinc metal-organic frameworks (MOFs). Metallic zinc implants degrade at a desirable rate, matching the healing pace of local tissues, and stimulating remodeling and formation of new tissues...
November 20, 2018: Trends in Biotechnology
https://www.readbyqxmd.com/read/30462382/factors-affecting-mortality-in-children-requiring-continuous-renal-replacement-therapy-in-pediatric-intensive-care-unit
#2
Monika Miklaszewska, Przemysław Korohoda, Katarzyna Zachwieja, Alina Sobczak, Krzysztof Kobylarz, Constantinos J Stefanidis, Jolanta Goździk, Dorota Drożdż
BACKGROUND: Acute kidney injury (AKI) occurs in up to 30% of pediatric intensive care unit (PICU) patients and is associated with a high mortality rate. OBJECTIVES: The objective of the study was to evaluate factors associated with the outcome and to identify the prognostic factors in children receiving continuous renal replacement therapy (CRRT). MATERIAL AND METHODS: This was a retrospective, single-center study, including 46 patients. RESULTS: Logistic regression analysis demonstrated significant effects on patient survival exerted by the percentage of fluid overload (FO%) (odds ratio (OR): 1...
November 21, 2018: Advances in Clinical and Experimental Medicine: Official Organ Wroclaw Medical University
https://www.readbyqxmd.com/read/30428665/recent-advances-in-anti-cancer-protein-peptide-delivery
#3
Xun Liu, Fan Wu, Yong Ji, Lichen Yin
Protein/peptide drugs possess unique advantages, such as high pharmacological potency, molecular specificity, multifunctionality, and low toxicity, and thus hold great potential for use in cancer therapy. In the past decades, great achievements have been made in protein delivery systems, which can protect cargo proteins against detrimental physiological environments and efficiently deliver proteins into tumor sites and cells. In this Review, we first summarize the existing protein/peptide drugs used for cancer treatment, illustrate their anti-tumor mechanisms, and point out the potential challenges/barriers against their medical utility...
November 26, 2018: Bioconjugate Chemistry
https://www.readbyqxmd.com/read/30403471/engineering-metal-organic-frameworks-for-photoacoustic-imaging-guided-chemo-photothermal-combinational-tumor-therapy
#4
Ying Zhang, Lei Wang, Liang Liu, Lin Lin, Feng Liu, Zhigang Xie, Huayu Tian, Xuesi Chen
Imaging-guided therapy has considerable potential in tumor treatment. Different treatments have been integrated to realize combinational tumor therapy with improved therapeutic efficiency. Herein, the conventional metal-organic framework (MOF) MIL-100 is utilized to load curcumin with excellent encapsulation capacity. Polydopamine-modified hyaluronic acid (HA-PDA) is coated on the MIL-100 surface to construct engineering MOF nanoparticles (MCH NPs). The HA-PDA coating not only improves the dispersibility and stability of NPs but also introduces a tumor-targeting ability to this nanosystem...
November 26, 2018: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/30403239/interfacially-synthesized-fe-soc-mof-nanoparticles-combined-with-icg-for-photothermal-photodynamic-therapy
#5
Xuechao Cai, Bei Liu, Maolin Pang, Jun Lin
Recently, fabrication of nanoscale MOFs (NMOFs) has attracted great attention for biomedical applications. NMOFs not only maintain the structural diversity and physicochemical properties of bulk MOFs, but also possess suitable dimensions, making them potential nanocarriers for imaging agents and drug molecules. In this work, highly monodispersed Fe-soc-MOF nanoparticles (about 100 nm) were fabricated through the liquid-solid-solution (LSS) method. Indocyanine green (ICG) was conjugated to the surface-modified Fe-soc-MOF to construct a multifunctional theranostic platform...
November 22, 2018: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/30374262/sepsis-caused-by-multidrug-resistant-klebsiella-pneumoniae-infection-in-a-23-year-old-burn-patient-case-report-and-literature-review
#6
C Freystätter, C Radtke, G Ihra, F Thalhammer, A Fochtmann-Frana
Septic complications are a major problem in burn care. Infections caused by multidrug-resistant (MDR) Klebsiella pneumoniae strains represent a growing threat. In particular, Romania has seen rapidly increasing rates of MDR Klebsiella pneumoniae isolates in recent years. The PubMed database was searched with the terms 'Klebsiella pneumoniae', 'multiple drug resistant', 'enterobacteria', 'infection', 'sepsis or septicaemia or blood stream infection', 'surveillance', 'diagnose', 'burn', 'intensive care unit' and 'Romania or Europe'...
June 30, 2018: Annals of Burns and Fire Disasters
https://www.readbyqxmd.com/read/30370656/zd2-engineered-gold-nanostar-metal-organic-framework-nanoprobes-for-t-1-weighted-magnetic-resonance-imaging-and-photothermal-therapy-specifically-toward-triple-negative-breast-cancer
#7
Luyun Zhang, Chuang Liu, Yang Gao, Zihou Li, Jie Xing, Wenzhi Ren, Lili Zhang, Aiguo Li, Guangming Lu, Aiguo Wu, Leyong Zeng
Compared with other subtypes of breast cancer, triple-negative breast cancer (TNBC) is seriously threatening to human life. Therefore, it is a matter of urgency to develop multifunctional nanoprobes for visualized theranostics of TNBC, achieving specific targeting toward only TNBC, but not other subtypes. Nanoscale metal-organic frameworks (MOFs) show important potential in visualized theranostics of tumors, but it is critical to synthesize well-defined core-shell MOF-based nanocomposites by encapsulating a single nanoparticle within MOF...
October 29, 2018: Advanced Healthcare Materials
https://www.readbyqxmd.com/read/30350963/paving-metal-organic-frameworks-with-upconversion-nanoparticles-via-self-assembly
#8
Ze Yuan, Lu Zhang, Shaozhou Li, Weina Zhang, Min Lu, Yue Pan, Xiaoji Xie, Ling Huang, Wei Huang
The combination of metal-organic frameworks (MOFs) and luminescent nanomaterials with upconversion characteristics could enable the development of new nanomaterials and applications in information security, optical sensing, and theranostics. However, currently available methods are not ideally suitable for fabricating composites of MOF and upconversion nanomaterial, and incorporating upconversion nanomaterials with MOFs in a controllable manner remains challenging. Here, we demonstrate an in situ self-assembly route to the nanocomposites in which MOFs are homogeneously paved with upconversion nanoparticles...
November 2, 2018: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/30335360/metal-organic-framework-as-a-microreactor-for-in-situ-fabrication-of-multifunctional-nanocomposites-for-photothermal-chemotherapy-of-tumors-in-vivo
#9
Jiani Huang, Ning Li, Chunmei Zhang, Zhaowei Meng
Metal-organic frameworks (MOFs) have been applied in chemotherapeutic drug loading for cancer treatment, but challenging for cases with large and malignant lesions. To overcome these difficulties, combinational therapies of chemotherapy and photothermal therapy (PTT) with potentially high selectivity and slight aggressiveness have drawn tremendous attention to treat various tumors. However, current MOF-based nanohybrids with photothermal agents involve tedious synthesis processes and heterogeneous structures...
October 30, 2018: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/30324413/patients-with-prostate-cancer-and-androgen-deprivation-therapy-have-increased-risk-of-fractures-a-study-from-the-fractures-and-fall-injuries-in-the-elderly-cohort-frailco
#10
M Wallander, K F Axelsson, D Lundh, M Lorentzon
Osteoporosis is a common complication of androgen deprivation therapy (ADT). In this large Swedish cohort study consisting of a total of nearly 180,000 older men, we found that those with prostate cancer and ADT have a significantly increased risk of future osteoporotic fractures. INTRODUCTION: Androgen deprivation therapy (ADT) in patients with prostate cancer is associated to increased risk of fractures. In this study, we investigated the relationship between ADT in patients with prostate cancer and the risk of incident fractures and non-skeletal fall injuries both compared to those without ADT and compared to patients without prostate cancer...
October 15, 2018: Osteoporosis International
https://www.readbyqxmd.com/read/30319750/zrmof-nanoparticles-as-quenchers-to-conjugate-dna-aptamers-for-target-induced-bioimaging-and-photodynamic-therapy
#11
Yuan Liu, Weijia Hou, Lian Xia, Cheng Cui, Shuo Wan, Ying Jiang, Yu Yang, Qiong Wu, Liping Qiu, Weihong Tan
Porphyrinic metal-organic framework (MOF) nanoparticles for photodynamic therapy solve the photosensitizer problems of poor solubility, self-quenching and aggregation. However, their low selectivity towards malignant tissues is an obstacle for bioimaging and a bottle-neck to cellular uptake for highly efficient photodynamic therapy of cancer. Here, ZrMOF nanoparticles as quenchers to conjugate DNA aptamers were developed for target-induced bioimaging and photodynamic therapy. A phosphate-terminal aptamer prepared by solid-phase DNA synthesis was anchored on the surface of ZrMOF nanoparticles through strong coordination between phosphate and zirconium...
October 14, 2018: Chemical Science
https://www.readbyqxmd.com/read/30280226/high-affinity-graphene-oxide-encapsulated-magnetic-zr-mof-for-pretreatment-and-rapid-determination-of-the-photosensitizers-hematoporphyrin-and-hematoporphyrin-monomethyl-ether-in-human-urine-prior-to-uplc-hrms
#12
Xin Hua, Guosheng Gao, Shengdong Pan
In this paper, a high-affinity graphene oxide-encapsulated magnetic Zr-MOF (GO-Mag@Zr-MOF) was synthesized and characterized by SEM, TEM, and XPS for its morphology, structure, and components. Subsequently, the as-prepared GO-Mag@Zr-MOF was, for the first time, employed as magnetic solid-phase extraction (MSPE) adsorbent for pretreatment and determination of photodynamic therapy (PDT) with the photosensitizers hematoporphyrin (Hp) and hematoporphyrin monomethyl ether (HMME) in human urine samples coupled with ultra-performance liquid chromatography-high resolution mass spectrometry (UPLC-HRMS)...
October 2, 2018: Analytical and Bioanalytical Chemistry
https://www.readbyqxmd.com/read/30274195/biocompatible-fe-based-micropore-metal-organic-frameworks-as-sustained-release-anticancer-drug-carriers
#13
Xin Leng, Xiaoxv Dong, Wenping Wang, Na Sai, Chunjing Yang, Longtai You, Hongliang Huang, Xingbin Yin, Jian Ni
Sustained-release preparation is a hot spot in antitumor drug research, where the first task is to select suitable drug carriers. Research has revealed that carboxylic acid iron metal⁻organic frameworks (MOFs), constructed from iron (Fe) ions and terephthalic acid, are nontoxic and biocompatible. Due to the breathing effect, the skeleton of this mesoporous material is flexible and can reversibly adapt its pore size through drug adsorption. Therefore, we chose one kind of Fe-MOF, MIL-53(Fe), as a carrier for the anticancer drug oridonin (Ori)...
September 28, 2018: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/30265804/erythrocyte-membrane-cloaked-metal-organic-framework-nanoparticle-as-biomimetic-nanoreactor-for-starvation-activated-colon-cancer-therapy
#14
Lu Zhang, Zhenzhen Wang, Yan Zhang, Fangfang Cao, Kai Dong, Jinsong Ren, Xiaogang Qu
Shutting down glucose supply by glucose oxidase (GOx) to starve tumors has been considered to be an attractive strategy in cancerous starvation therapy. Nevertheless, the in vivo applications of GOx-based starvation therapy are severely restricted by the poor GOx delivery efficiency and the self-limiting therapeutic effect. Herein, a biomimetic nanoreactor has been fabricated for starvation-activated cancer therapy by encapsulating GOx and prodrug tirapazamine (TPZ) in an erythrocyte membrane cloaked metal-organic framework (MOF) nanoparticle (TGZ@eM)...
October 23, 2018: ACS Nano
https://www.readbyqxmd.com/read/30229245/enzyme-immobilized-metal-organic-framework-nanosheets-as-tandem-catalysts-for-the-generation-of-nitric-oxide
#15
Pinghua Ling, Caihua Qian, Feng Gao, Jianping Lei
An enzyme-immobilized metal-organic framework (MOF) nanosheet system was developed as a tandem catalyst, which converted glucose into gluconic acid and H2O2, and sequentially the latter could be used to catalyze the oxidation of l-arginine to generate nitric oxide in the presence of porphyrinic MOFs as artificial enzymes under physiological pH, showing great potential in cancer depleting glucose for starving-like/gas therapy.
October 2, 2018: Chemical Communications: Chem Comm
https://www.readbyqxmd.com/read/30215253/cus-mof-based-well-designed-quercetin-delivery-system-for-chemo-photothermal-therapy
#16
Wei Jiang, Huiyuan Zhang, Jilian Wu, Guangxi Zhai, Zhonghao Li, Yuxia Luan, Sanjay Garg
Quercetin (QT) is one promising candidate for the treatment of various cancers with virtually no toxic side effects. However, its anticancer effect is severely restricted by its poor bioavailability, low water solubility, and chemical instability in the neutral and alkaline medium. Herein, zeolitic imidazolate framework-8 (ZIF-8) is first reported as the multifunctional nanoplatform to the codelivery of quercetin as an anticancer agent and CuS nanoparticles as a photothermal therapy (PTT) agent for synergistic combination of chemotherapy and PTT as well as overcoming the drawbacks of quercetin...
October 10, 2018: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/30183134/photodynamic-therapy-based-on-nanoscale-metal-organic-frameworks-from-material-design-to-cancer-nanotherapeutics
#17
REVIEW
Qun Guan, Yan-An Li, Wen-Yan Li, Yu-Bin Dong
Photodynamic therapy (PDT) is a highly effective, noninvasive, highly selective method for cancer treatment. Nanoscale metal-organic frameworks (NMOFs) are a type of crystalline hybrid material composed of metal centers and organic linkers. Owing to their adjustable structure, easy modification, permanent pores, and good biocompatibility, NMOFs, as either nanophotosensitizers or photosensitizer nanocarriers, have been used in PDT. In this article, we summarize the recent progress in MOF-based nanomaterials for tumor PDT...
November 2, 2018: Chemistry, An Asian Journal
https://www.readbyqxmd.com/read/30151542/fa-peg-decorated-mof-nanoparticles-as-a-targeted-drug-delivery-system-for-controlled-release-of-an-autophagy-inhibitor
#18
Zheqi Shi, Xuerui Chen, Li Zhang, Shiping Ding, Xu Wang, Qunfang Lei, Wenjun Fang
A zeolitic imidazolate framework (ZIF-8) with high loading capacity and pH-responsive properties, an important subclass of metal-organic frameworks (MOFs), has become a promising material for drug delivery. A multifunctional drug delivery system (DDS) was designed in this work for effective targeting delivery of chloroquine diphosphate (CQ) as an autophagy inhibitor. The ZIF-8 nanoparticles encapsulating CQ (CQ@ZIF-8 NPs) were fabricated by a simple one-pot method and were then decorated with methoxy poly(ethylene glycol)-folate (FA-PEG), a special identifier of cancer cells, to form FA-PEG/CQ@ZIF-8...
September 25, 2018: Biomaterials Science
https://www.readbyqxmd.com/read/30128038/ultrathin-cu-tcpp-mof-nanosheets-a-new-theragnostic-nanoplatform-with-magnetic-resonance-near-infrared-thermal-imaging-for-synergistic-phototherapy-of-cancers
#19
Bo Li, Xiaoya Wang, Lei Chen, Yanling Zhou, Wentao Dang, Jiang Chang, Chengtie Wu
Nanostructures based on metal-organic frameworks (MOFs) have promising potential as theragnostic nanoplatforms for phototherapy of cancer cells. However, the MOFs alone are seldom reported to be used as photothermal agents mainly due to their poor near-infrared (NIR) light absorption. Methods: Ultrathin copper-tetrakis (4-carboxyphenyl) porphyrin (Cu-TCPP) MOF nanosheets were prepared by a facile solvothermal route. The photothermal therapy (PTT), photodynamic therapy (PDT), and T1 -weighted magnetic resonance (MR) imaging capabilities and the high biocompatibility of these composite nanosheets were evaluated in vitro as well as in vivo in a mouse tumor model...
2018: Theranostics
https://www.readbyqxmd.com/read/30125400/folic-acid-functionalized-zirconium-based-metal-organic-frameworks-as-drug-carriers-for-active-tumor-targeted-drug-delivery
#20
Hong Dong, Gui-Xin Yang, Xin Zhang, Xiang-Bin Meng, Jing-Li Sheng, Xiao-Jun Sun, Yu-Jie Feng, Feng-Ming Zhang
Nanoscale metal-organic frameworks (NMOFs) have proven to be a class of promising drug carriers as a result of their high porosity, crystalline nature with definite structure information, and potential for further functionality. However, MOF-based drug carriers with active tumor-targeting function have not been extensively researched until now. Here we show a strategy for constructing active tumor-targeted NMOF drug carriers by anchoring functional folic acid (FA) molecules onto the metal clusters of NMOFs...
August 19, 2018: Chemistry: a European Journal
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