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https://www.readbyqxmd.com/read/29165981/layered-double-hydroxide-and-polypeptide-thermogel-nanocomposite-system-for-chondrogenic-differentiation-of-stem-cells
#1
Seon Sook Lee, Goeun Choi, Hyun Jung Lee, Yelin Kim, Jin-Ho Choy, Byeongmoon Jeong
Stem cell therapy for damaged cartilages suffers from the low rates of retention, survival, and differentiation into chondrocytes at the target site. To solve these problems, here we propose a two dimensional/three dimensional (2D/3D) nanocomposite system. As a new two dimensional (2D) material, hexagonal layered double hydroxides (LDHs) with a uniform lateral length of 2-3 μm were prepared by a hydrothermal process. And then, tonsil-derived mesenchymal stem cells (TMSCs), RGD-coated LDHs, and kartogenin (KGN) were incorporated into the gel through the thermal energy-driven gelation of the system...
November 22, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29159762/p2y12-receptor-upregulation-in-satellite-glial-cells-is-involved-in-neuropathic-pain-induced-by-hiv-glycoprotein-120-and-2-3-dideoxycytidine
#2
Zhihua Yi, Lihui Xie, Congfa Zhou, Huilong Yuan, Shuai Ouyang, Zhi Fang, Shanhong Zhao, Tianyu Jia, Lifang Zou, Shouyu Wang, Yun Xue, Bing Wu, Yun Gao, Guilin Li, Shuangmei Liu, Hong Xu, Changshui Xu, Chunping Zhang, Shangdong Liang
The direct neurotoxicity of HIV and neurotoxicity of combination antiretroviral therapy medications both contribute to the development of neuropathic pain. Activation of satellite glial cells (SGCs) in the dorsal root ganglia (DRG) plays a crucial role in mechanical and thermal hyperalgesia. The P2Y12 receptor expressed in SGCs of the DRG is involved in pain transmission. In this study, we explored the role of the P2Y12 receptor in neuropathic pain induced by HIV envelope glycoprotein 120 (gp120) combined with ddC (2',3'-dideoxycytidine)...
November 20, 2017: Purinergic Signalling
https://www.readbyqxmd.com/read/29159536/physics-of-epi-thermal-boron-neutron-capture-therapy-epi-thermal-bnct
#3
REVIEW
Ryoichi Seki, Yushi Wakisaka, Nami Morimoto, Masaaki Takashina, Masahiko Koizumi, Hiroshi Toki, Mitsuhiro Fukuda
The physics of epi-thermal neutrons in the human body is discussed in the effort to clarify the nature of the unique radiologic properties of boron neutron capture therapy (BNCT). This discussion leads to the computational method of Monte Carlo simulation in BNCT. The method is discussed through two examples based on model phantoms. The physics is kept at an introductory level in the discussion in this tutorial review.
November 20, 2017: Radiological Physics and Technology
https://www.readbyqxmd.com/read/29159144/thermoresponsive-graphene-oxide-starch-micro-nanohydrogel-composite-as-biocompatible-drug-delivery-system
#4
Mina Sattari, Marziyeh Fathi, Mansour Daei, Hamid Erfan-Niya, Jaleh Barar, Ali Akbar Entezami
Introduction: Stimuli-responsive hydrogels, which indicate a significant response to the environmental change (e.g., pH, temperature, light, …), have potential applications for tissue engineering, drug delivery systems, cell therapy, artificial muscles, biosensors, etc. Among the temperature-responsive materials, poly (N-isopropylacrylamide) (PNIPAAm) based hydrogels have been widely developed and their properties can be easily tailored by manipulating the properties of the hydrogel and the composite material...
2017: BioImpacts: BI
https://www.readbyqxmd.com/read/29158848/biodegradable-core-shell-dual-metal-organic-frameworks-nanotheranostic-agent-for-multiple-imaging-guided-combination-cancer-therapy
#5
Dongdong Wang, Jiajia Zhou, Ruohong Shi, Huihui Wu, Ruhui Chen, Beichen Duan, Guoliang Xia, Pengping Xu, Hui Wang, Shu Zhou, Chengming Wang, Haibao Wang, Zhen Guo, Qianwang Chen
Metal-organic-frameworks (MOFs) possess high porosity, large surface area, and tunable functionality are promising candidates for synchronous diagnosis and therapy in cancer treatment. Although large number of MOFs has been discovered, conventional MOF-based nanoplatforms are mainly limited to the sole MOF source with sole functionality. In this study, surfactant modified Prussian blue (PB) core coated by compact ZIF-8 shell (core-shell dual-MOFs, CSD-MOFs) has been reported through a versatile stepwise approach...
2017: Theranostics
https://www.readbyqxmd.com/read/29158837/temperature-sensitive-gold-nanoparticle-coated-pluronic-pll-nanoparticles-for-drug-delivery-and-chemo-photothermal-therapy
#6
Ying Sun, Qi Wang, Jianhua Chen, Lei Liu, Li Ding, Ming Shen, Jin Li, Baoshan Han, Yourong Duan
Gold nanoparticle-coated Pluronic-b-poly(L-lysine) nanoparticles (Pluronic-PLL@Au NPs) were synthesized via an easy one-step method and employed as carriers for the delivery of paclitaxel (PTX) in chemo-photothermal therapy, in which Pluronic-PLL acts as the reductant for the formation of AuNPs without the need for an additional reducing agent. METHODS: The deposition of AuNPs on the surface of Pluronic-PLL micelles and the thermal response of the system were followed via ultraviolet-visible spectroscopy and dynamic light scattering...
2017: Theranostics
https://www.readbyqxmd.com/read/29148596/transition-metal-catalyzed-selective-cage-b-h-functionalization-of-o-carboranes
#7
Zuowei Xie, Yangjian Quan, Zaozao Qiu
Carboranes are a class of carbon-boron molecular clusters with unusual thermal and chemical stabilities. They have been proved as very useful building blocks in supramolecular design, optoelectronics, nanomaterials, boron neutron capture therapy agents and organometallic/coordination chemistry. Thus, the functionalization of o-carboranes has received growing interests. Over the past decades, most of the works in this area have been focused on cage carbon functionalization as the weakly acidic cage C-H proton can be readily deprotonated by strong bases...
November 17, 2017: Chemistry: a European Journal
https://www.readbyqxmd.com/read/29147708/advanced-sensing-imaging-and-therapy-nanoplatforms-based-on-nd-3-doped-nanoparticle-composites-exhibiting-upconversion-induced-by-808-nm-near-infrared-light
#8
REVIEW
Ming-Hsien Chan, Ru-Shi Liu
Malignant tumors are currently the leading cause of death worldwide, followed by cardiovascular and cerebrovascular diseases. Although various methods, such as blood examination, tissue biopsy, and radiography, for tumor detection, exist, these techniques still require further refinement. Researchers have recently explored the use of novel adjuvant methods, specifically luminescence imaging detection, for the detection of tumors. The light-triggered approach is less invasive and induces fewer side effects than traditional detection methods...
November 17, 2017: Nanoscale
https://www.readbyqxmd.com/read/29140463/anatomic-investigation-of-the-trajectory-for-stereotactic-laser-amygdalohippocampectomy
#9
Vanessa M Holanda, Abuzer Gungor, Serhat Baydin, Erik H Middlebrooks, Shabbar F Danish
BACKGROUND: Magnetic resonance imaging-guided laser interstitial thermal therapy (LITT) has emerged as a promising treatment for mesial temporal lobe epilepsy. Surgeons must understand the relevant anatomy that is traversed by the catheter and affected by ablation. OBJECTIVE: To study the anatomic structures crossed by the LITT catheter until it reaches the amygdala. METHODS: Three human cadaveric heads were implanted with catheters using a frameless stereotactic technique...
November 11, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/29135345/localized-drug-release-and-effective-chemotherapy-by-hyperthermia-governed-bubble-generating-hybrid-nanocapsule-system
#10
Ke Kang, Jin Ma, Qiangying Yi, Zhongwei Gu
AIM: To build up a remote triggering drug delivery system with hyperthermia-responsive ammonium bicarbonate salt and investigate its effects on tumor therapy. MATERIALS & METHODS: This hybrid nanocapsule system was prepared by a different strategy, doxorubicin (DOX) was encapsulated in the heparin shell first and then ammonium bicarbonate was diffused into the nanocapsules to generate DOX-bicarbonate salt, its characterizations and effects on tumor therapy were investigated...
November 14, 2017: Nanomedicine
https://www.readbyqxmd.com/read/29133392/closed-loop-control-of-targeted-ultrasound-drug-delivery-across-the-blood-brain-tumor-barriers-in-a-rat-glioma-model
#11
Tao Sun, Yongzhi Zhang, Chanikarn Power, Phillip M Alexander, Jonathan T Sutton, Muna Aryal, Natalia Vykhodtseva, Eric L Miller, Nathan J McDannold
Cavitation-facilitated microbubble-mediated focused ultrasound therapy is a promising method of drug delivery across the blood-brain barrier (BBB) for treating many neurological disorders. Unlike ultrasound thermal therapies, during which magnetic resonance thermometry can serve as a reliable treatment control modality, real-time control of modulated BBB disruption with undetectable vascular damage remains a challenge. Here a closed-loop cavitation controlling paradigm that sustains stable cavitation while suppressing inertial cavitation behavior was designed and validated using a dual-transducer system operating at the clinically relevant ultrasound frequency of 274...
November 13, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29131990/non-thermal-near-infrared-exposure-photobiomodulates-cellular-responses-to-ionizing-radiation-in-human-full-thickness-skin-models
#12
Anke König, Nadja Zöller, Stefan Kippenberger, August Bernd, Roland Kaufmann, Paul G Layer, Anja Heselich
Ionizing and near-infrared radiation are both part of the therapeutic spectrum in cancer treatment. During cancer therapy ionizing radiation is typically used for non-invasive reduction of malignant tissue, while near-infrared photobiomodulation is utilized in palliative medical approaches, e.g. for pain reduction or impairment of wound healing. Furthermore, near-infrared is part of the solar wavelength spectrum. A combined exposure of these two irradiation qualities - either intentionally during medical treatment or unintentionally due to solar exposure - is therefore presumable for cancer patients...
November 10, 2017: Journal of Photochemistry and Photobiology. B, Biology
https://www.readbyqxmd.com/read/29131946/impact-of-linker-length-and-composition-on-fragment-binding-and-cell-permeation-story-of-a-bisbenzimidazole-dye-fragment
#13
Nihar Ranjan, Patrick Kellish, Ada King, Dev Priya Arya
Small molecules that modulate biological functions are targets of modern day drug discovery efforts. In a common discovery platform-fragment based drug discovery, two fragments are identified that bind to adjacent sites on a target, and are then linked together using different linkers to identify the linkage for optimum activity. What is not known from these studies is the effects these linkers, that typically contain C, H, and O atoms, have on the properties of the individual fragment. Herein, we investigate such effects in a bisbenzimidazole fragment whose derivatives have a wide range of therapeutic applications in nucleic acid recognition, sensing, photodynamic therapy and as cellular probes...
November 13, 2017: Biochemistry
https://www.readbyqxmd.com/read/29129362/septic-predictor-index-a-novel-platform-to-identify-thermally-injured-patients-susceptible-to-sepsis
#14
Peter Chen, Mile Stanojcic, Marc G Jeschke
BACKGROUND: During the past decades' sepsis has become the major cause of death in severely burned patients. Despite the importance of burn sepsis, its diagnosis, let alone its prediction, is difficult if not impossible. Recently, we have demonstrated burn patients have increased NLRP3 inflammasome activation in white adipose tissue. We aimed to delineate a unique immune profile that can be used to identify septic outcomes in severely burned patients. METHODS: Adult burn patients (n = 37) admitted to our burn center between June 2013-2015 were enrolled in this study...
November 9, 2017: Surgery
https://www.readbyqxmd.com/read/29122620/three-year-outcomes-of-the-prospective-randomized-controlled-rez%C3%A5-m-system-study-convective-radiofrequency-thermal-therapy-for-treatment-of-lower-urinary-tract-symptoms-due-to-benign-prostatic-hyperplasia
#15
Kevin T McVary, Claus G Roehrborn
OBJECTIVE: To report 3-year outcomes of a prospective, multi-center, randomized, blinded control trial after treatment with convective radiofrequency (RF) water vapor thermal therapy for moderate to severe lower urinary tract symptoms (LUTS) due to benign prostatic hyperplasia (BPH). MATERIALS AND METHODS: Fifteen centers enrolled and randomized 197 men ≥50 years old with International Prostate Symptom Score (IPSS) ≥13, maximum flow rate (Qmax) ≤15 ml/s and prostate volume 30 to 80 cc to thermal therapy with Rezūm® System or control (2:1)...
November 6, 2017: Urology
https://www.readbyqxmd.com/read/29118920/combination-therapy-with-extracorporeal-shock-wave-and-melatonin-markedly-attenuated-neuropathic-pain-in-rat
#16
Kuan-Hung Chen, Chien-Hui Yang, Christopher Glenn Wallace, Chung-Ren Lin, Chia-Kai Liu, Tsung-Cheng Yin, Tien-Hung Huang, Yi-Ling Chen, Cheuk-Kwan Sun, Hon-Kan Yip
This study tested the hypothesis that combination therapy using extracorporeal shock wave (ECSW)-melatonin (Mel) was superior to either alone at ameliorating neuropathic pain (NP). NP was induced by chronic constriction injury (CCI) to the left sciatic nerve in rats. Animals were categorized into sham control (group 1), CCI only (group 2), CCI-ECSW (group 3), CCI-Mel (group 4) and CCI-ECSW-Mel (group 5). By days 2 and 8 after CCI, the mechanical paw withdrawal threshold (MPWT)/thermal paw withdrawal latency (TPWL) were highest in group 2, lowest in group 1, significantly lower in group 5 than in groups 3 and 4 (all p<0...
2017: American Journal of Translational Research
https://www.readbyqxmd.com/read/29114529/rehabilitation-training-in-artificially-heated-environment
#17
Ping-Chung Leung
Sauna has become a popular club house facility where the dweller enjoys relaxation. Some exercise groups like yoga and Qigong practitioners, are making use of the heated environment to achieve quicker and better results of trainings. Sauna therapy is producing a thermal stress through hyperthermia. The cardiovascular system readily responds by increasing the heart rate which can become double the resting stage within minutes and cardiac output may have a 70% increase. The body's surface response to heat leads to a 40% of decrease in peripheral vascular resistance, thus allowing rapid peripheral blood flow which is responsible for greater heat dispersal directly from the skin...
October 2017: Journal of Exercise Rehabilitation
https://www.readbyqxmd.com/read/29114035/an-ultra-stable-single-chain-insulin-analog-resists-thermal-inactivation-and-exhibits-biological-signaling-duration-equivalent-to-the-native-protein
#18
Michael D Glidden, Khadijah Aldabbagh, Nelson B Phillips, Kelley Carr, Yen-Shan Chen, Jonathan Whittaker, Manijeh Phillips, Nalinda P Wickramasinghe, Nischay Rege, Mamuni Swain, Yi Peng, Yanwu Yang, Michael C Lawrence, Vivien C Yee, Faramarz Ismail-Beigi, Michael A Weiss
Thermal degradation of insulin complicates its delivery and use. Previous efforts to engineer ultra-stable analogs were confounded by prolonged cellular signaling in vivo, complicating mealtime therapy and of unclear safety. We therefore sought an ultra-stable analog whose potency and duration of action on intravenous bolus injection in diabetic rats are indistinguishable from wild-type (WT) insulin. Here, we describe the structure, function and stability of such an analog: a 57-residue single-chain insulin (SCI) with multiple acidic substitutions...
November 7, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/29113981/acupressure-for-respiratory-allergic-diseases-a-systematic-review-of-randomised-controlled-trials
#19
Yaqun Liang, George Binh Lenon, Angela Wei Hong Yang
OBJECTIVE: To evaluate the effects and safety of acupressure for the management of respiratory allergic diseases by systematically reviewing randomised controlled trials (RCTs). METHODS: A total of 13 electronic English and Chinese databases were searched until July 2017. Two authors extracted data and evaluated risk of bias independently. Review Manager V.5.3 was employed for data analysis. RESULTS: The literature search identified 186 papers, of which only four of met the inclusion criteria: two for allergic rhinitis (AR) and two for asthma...
November 7, 2017: Acupuncture in Medicine: Journal of the British Medical Acupuncture Society
https://www.readbyqxmd.com/read/29111296/a-neurosurgeon-s-view-laser-interstitial-thermal-therapy-of-mesial-temporal-lobe-structures
#20
Yarema B Bezchlibnyk, Jon T Willie, Robert E Gross
Stereotactic laser ablation of mesial temporal structures is a promising new surgical intervention for patients with mesial temporal lobe epilepsy (MTLE). Since this procedure was first used to treat MTLE in 2010, the literature contains reports of 37 patients that underwent MR-guided stereotactic laser amygdalohippocampotomy (SLAH) using Laser Interstitial Thermal Therapy (LITT) with at least 1year of follow-up. This early body of data suggests that SLAH is a safe and effective treatment for MTLE in properly selected patients...
October 27, 2017: Epilepsy Research
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