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https://www.readbyqxmd.com/read/27922119/in-situ-particles-reorientation-during-magnetic-hyperthermia-application-shape-matters-twice
#1
Konstantinos Simeonidis, M Puerto Morales, Marzia Marciello, Makis Angelakeris, Patricia de la Presa, Ana Lazaro-Carrillo, Andrea Tabero, Angeles Villanueva, Oksana Chubykalo-Fesenko, David Serantes
Promising advances in nanomedicine such as magnetic hyperthermia rely on a precise control of the nanoparticle performance in the cellular environment. This constitutes a huge research challenge due to difficulties for achieving a remote control within the human body. Here we report on the significant double role of the shape of ellipsoidal magnetic nanoparticles (nanorods) subjected to an external AC magnetic field: first, the heat release is increased due to the additional shape anisotropy; second, the rods dynamically reorientate in the orthogonal direction to the AC field direction...
December 6, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27917269/ecstasy-mdma-and-its-effects-on-kidneys-and-their-treatment-a-review
#2
REVIEW
Feyza Bora, Fatih Yılmaz, Taner Bora
Ecstasy (MDMA; 3,4-methylenedioxymethylamphetamine) is an illicit drug that has been increasingly abused by young people. Its effects include euphoria, enhanced sociability and heightened mental awareness. These come about via the increase of serotonin in both the central nervous system and the sympathetic nervous system. Despite the drug's prevalent abuse, serious or adverse effects are rare. Due to personal pharmacokinetics, effects from the same dosage vary according to the individual. Fatal instances may include acute hyponatremia, hyperthermia (>42 °C), disseminated intravascular coagulation (DIC) resulting from hyperthermia affecting the kidneys, and non-traumatic rhabdomyolysis...
November 2016: Iranian Journal of Basic Medical Sciences
https://www.readbyqxmd.com/read/27914093/lsmo-nanoparticles-coated-by-hyaluronic-acid-for-magnetic-hyperthermia
#3
Yuanwei Chen, Ying Wang, Xi Liu, Mai Lu, Jiangwei Cao, Tao Wang
Magnetic hyperthermia with the treating temperature range of 41-46 °C is an alternative therapy for cancer treatment. In this article, lanthanum strontium manganates (La1-x Sr x MnO3, 0.25 ≤ × ≤ 0.35) magnetic nanoparticles coated by hyaluronic acid (HA) which possesses the ability of targeting tumor cells were prepared by a simple hydrothermal method combined with a high-energy ball milling technique. The crystal structure, morphology, magnetic properties of the HA-coated magnetic nanoparticles (MNPs), and their heating ability under alternating magnetic field were investigated...
December 2016: Nanoscale Research Letters
https://www.readbyqxmd.com/read/27913213/enhanced-efficacy-of-combination-heat-shock-targeted-polymer-therapeutics-with-high-intensity-focused-ultrasound
#4
Nick Frazier, Allison Payne, Christopher Dillon, Nithya Subrahmanyam, Hamidreza Ghandehari
Combination of polymer therapeutics and hyperthermia has been shown to enhance accumulation in selectively heated tumor tissue. The additional use of heat shock (HS)-targeting towards tumor tissues can further enhance accumulation and retention, and improve therapeutic outcomes. In this work, high intensity focused ultrasound (HIFU) was used to generate hyperthermia in prostate tumor tissue. Upregulation of the cell surface HS receptor glucose regulated protein 78 kDa (GRP78) was observed after treatment with HIFU hyperthermia which was then targeted by specific HS-targeting peptides...
November 29, 2016: Nanomedicine: Nanotechnology, Biology, and Medicine
https://www.readbyqxmd.com/read/27909289/hyperthermia-enhances-17-dmag-efficacy-in-hepatocellular-carcinoma-cells-with-aggravated-dna-damage-and-impaired-g2-m-transition
#5
Zhizhou Huang, Xueqiong Zhou, Yangfan He, Xiangyu Ke, Ying Wen, Fei Zou, Xuemei Chen
Due to the lack of effective treatment, hepatocellular carcinoma (HCC) is one of the malignancies with low survival rates worldwide. Combination of hyperthermia and chemotherapy has shown promising results in several abdominal tumours, but high expression of HSP90 in tumours attenuated the efficacy of hyperthermia. Thus a combination of hyperthermia and inhibition of HSP90 might be a feasible therapeutic strategy for HCC. One hepatic cell line (L02) and two HCC cell lines (Huh7 and HepG2) were heated at 42 °C for 0, 0...
December 2, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27893685/acute-liver-failure-caused-by-hemophagocytic-lymphohistiocytosis-in-adults-a-case-report-and-review-of-the-literature
#6
Shide Lin, Ying Li, Jun Long, Qichuan Liu, Fangwan Yang, Yihuai He
BACKGROUND: Hemophagocytic lymphohistiocytosis (HLH) is a rare condition that can be caused by a primary or acquired disorder of uncontrolled immune response. Liver injury is a common complication of HLH; however, HLH presenting as acute liver failure (ALF) has rarely been reported in adults. CASE SUMMARY: A 34-year-old man was admitted to our hospital with nausea and fatigue persisting for 2 weeks and jaundice for 1 week. He had hyperthermia at the onset of disease...
November 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27893374/differential-evolution-optimization-of-the-sar-distribution-for-head-and-neck-hyperthermia
#7
Grazia Cappiello, Brian Mc Ginley, Muhammad Adnan Elahi, Tomas Drizdal, Margarethus M Paulides, Martin Glavin, Martin O'Halloran, Edward Jones
Hyperthermia is an emerging cancer treatment modality which involves applying heat to the malignant tumor. The heating can be delivered using electromagnetic (EM) energy, mostly in the radiofrequency (RF) or microwave range. Accurate patient-specific hyperthermia treatment planning (HTP) is essential for effective and safe treatments, in particular for deep and loco-regional hyperthermia. An important aspect of HTP is the ability to focus microwave energy into the tumor and reduce the occurrence of hot spots in healthy tissue...
November 14, 2016: IEEE Transactions on Bio-medical Engineering
https://www.readbyqxmd.com/read/27892715/incorporation-of-chemotherapeutic-agent-and-photosensitizer-in-a-low-temperature-sensitive-liposome-for-effective-chemo-hyperthermic-anticancer-activity
#8
Hanh Thuy Nguyen, Tuan Hiep Tran, Raj Kumar Thapa, Tung Thanh Pham, Jee-Heon Jeong, Yu Seok Youn, Han-Gon Choi, Chul Soon Yong, Jong Oh Kim
OBJECTIVES: In this study, we combined chemo- and hyperthermia therapy in a low temperature-sensitive liposome (LTSL) for potential cancer treatment. METHODS: Docetaxel (DOC) and indocyanine green (ICG) as a therapeutic agent and photosensitizer, respectively, were incorporated in a low temperature-sensitive liposome (LTSL/DI). Nanoparticles were evaluated for the physicochemical characterizations, in vitro uptake and cytotoxicity, and furthermore in vivo anticancer activity...
November 28, 2016: Expert Opinion on Drug Delivery
https://www.readbyqxmd.com/read/27890786/heat-increases-the-editing-efficiency-of-human-papillomavirus-e2-gene-by-inducing-upregulation-of-apobec3a-and-3g
#9
Yang Yang, Hexiao Wang, Xinrui Zhang, Wei Huo, Ruiqun Qi, Yali Gao, Gaofeng Zhang, Bing Song, Hongduo Chen, Xinghua Gao
Apolipoprotein B mRNA-editing catalytic polypeptide (APOBEC) 3 proteins have been identified as potent viral DNA mutators and have broad antiviral activity. In this study, we demonstrated APOBEC3A (A3A) and A3G expression levels were significantly upregulated in HPV infected cell lines and tissues. Heat treatment resulted in elevated expression of A3A and A3G in a temperature-dependent manner in HPV infected cells. Correspondingly, 44 ºC heating treated HPV infected cells showed accumulated G-to-A or C-to-T mutation in HPVE2 gene...
November 24, 2016: Journal of Investigative Dermatology
https://www.readbyqxmd.com/read/27890732/programmed-near-infrared-light-responsive-drug-delivery-system-for-combined-magnetic-tumor-targeting-magnetic-resonance-imaging-and-chemo-phototherapy
#10
Qianhua Feng, Yuanyuan Zhang, Wanxia Zhang, Yongwei Hao, Yongchao Wang, Hongling Zhang, Lin Hou, Zhenzhong Zhang
: In this study, an intelligent drug delivery system was developed by capping doxorubicin (DOX)-loaded hollow mesoporous CuS nanoparticles (HMCuS NPs) with superparamagnetic iron oxide nanoparticles (IONPs). Under near infrared (NIR) light irradiation, the versatile HMCuS NPs could exploit the merits of both photothermal therapy (PTT) and photodynamic therapy (PDT) simultaneously. Herein, the multifunctional IONPs as gatekeeper with the enhanced capping efficiency were supposed to realize "zero premature release" and minimize the adverse side effects during the drug delivery in vivo...
November 24, 2016: Acta Biomaterialia
https://www.readbyqxmd.com/read/27890622/multi-functional-nanoparticles-as-theranostic-agents-for-treatment-imaging-in-pancreatic-cancer
#11
L R Jaidev, David Raj Chellappan, Dhiraj Vasanth Bhavsar, Ravi Ranganathan, Banudevi Sivanantham, Anuradha Subramanian, Uma Sharma, Narnamangalam R Jagannathan, Uma Maheswari Krishnan, Swaminathan Sethuraman
: Theranostics has received considerable attention since both therapy and imaging modalities can be integrated into a single nanocarrier. In this study, fluorescent iron oxide (FIO) nanoparticles and gemcitabine (G) encapsulated poly(lactide-co-glycolide) (PLGA) nanospheres (PGFIO) conjugated with human epidermal growth factor receptor 2, (HER-2) antibody (HER-PGFIO) were prepared and characterized. HER-PGFIO showed the magnetic moment of 10 emu/g, relaxivity (r2) of 773 mM(-1)s(-1) and specific absorption rate (SAR) of 183 W/g...
November 23, 2016: Acta Biomaterialia
https://www.readbyqxmd.com/read/27888932/numerical-study-of-non-fourier-heat-conduction-in-a-biolayer-spherical-living-tissue-during-hyperthermia
#12
Maedeh Mohajer, Mohammad B Ayani, Hassan Basirat Tabrizi
Laser interstitial thermal therapy is one of the best methods for tumor treatment. Quality of treatment is highly influenced by the way of temperature control that depends strongly upon the living tissue thermal properties. One-dimensional dual-phase-lag (DPL) in spherical coordinate system numerically has been investigated for bioheat transfer during laser treatment in living biological tissues, which contain tumoral and normal layers. Various behaviors of heat transfer models such as wave, wavelike and diffusion are studied by adjusting the relaxation parameters...
December 2016: Journal of Thermal Biology
https://www.readbyqxmd.com/read/27888931/a-study-on-thermal-damage-during-hyperthermia-treatment-based-on-dpl-model-for-multilayer-tissues-using-finite-element-legendre-wavelet-galerkin-approach
#13
Dinesh Kumar, K N Rai
Hyperthermia is a process that uses heat from the spatial heat source to kill cancerous cells without damaging the surrounding healthy tissues. Efficacy of hyperthermia technique is related to achieve temperature at the infected cells during the treatment process. A mathematical model on heat transfer in multilayer tissues in finite domain is proposed to predict the control temperature profile at hyperthermia position. The treatment technique uses dual-phase-lag model of heat transfer in multilayer tissues with modified Gaussian distribution heat source subjected to the most generalized boundary condition and interface at the adjacent layers...
December 2016: Journal of Thermal Biology
https://www.readbyqxmd.com/read/27888929/modeling-of-heat-transfer-in-a-vascular-tissue-like-medium-during-an-interstitial-hyperthermia-process
#14
Saeid Hassanpour, Ahmad Saboonchi
This paper aims to evaluate the role of small vessels in heat transfer mechanisms of a tissue-like medium during local intensive heating processes, for example, an interstitial hyperthermia treatment. To this purpose, a cylindrical tissue with two co- and counter-current vascular networks and a central heat source is introduced. Next, the energy equations of tissue, supply fluid (arterial blood), and return fluid (venous blood) are derived using porous media approach. Then, a 2D computer code is developed to predict the temperature of blood (fluid phase) and tissue (solid phase) by conventional volume averaging method and a more realistic solution method...
December 2016: Journal of Thermal Biology
https://www.readbyqxmd.com/read/27888926/microct-image-based-simulation-to-design-heating-protocols-in-magnetic-nanoparticle-hyperthermia-for-cancer-treatment
#15
Alexander LeBrun, Ronghui Ma, Liang Zhu
OBJECTIVES: The objective is to design heating protocols to completely damage PC3 tumors after a single magnetic nanoparticle hyperthermia session with minimal collateral thermal damage, based on microCT image generated tumor and mouse models. METHODS: Tumor geometries and volumetric heat generation rate distributions that are generated from microCT scans in our previous study are imported into COMSOL 4.3® multiphysics for heat transfer simulations and heating protocol design using the Arrhenius damage model...
December 2016: Journal of Thermal Biology
https://www.readbyqxmd.com/read/27882090/clinical-treatment-of-malignant-hyperthermia-in-three-cases
#16
Tao Pan, Wenli Ji, Mengqi Nie, Yang Li
Malignant hyperthermia (MH) is a rare life threatening inherited disorder that is triggered by drugs used for general anesthesia in susceptible persons. The symptoms include rapid increase of body temperature and severe muscle contractions. The present study includes 3 cases of MH and highlights the timely identification of symptoms for rescuing the patient. In case I, a 7-year-old male child underwent surgery with ketamine at a dose of 250 mg. After 4 h of operation, the child went through convulsions, high fever and succumbed within a few hours...
November 2016: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/27877873/preparation-of-magnetic-mesoporous-silica-nanoparticles-as-a-multifunctional-platform-for-potential-drug-delivery-and-hyperthermia
#17
Xia Yu, Yufang Zhu
We report the preparation of magnetic mesoporous silica (MMS) nanoparticles with the potential multifunctionality of drug delivery and magnetic hyperthermia. Carbon-encapsulated magnetic colloidal nanoparticles (MCN@C) were used to coat mesoporous silica shells for the formation of the core-shell structured MMS nanoparticles (MCN@C/mSiO2), and the rattle-type structured MMS nanoparticles (MCN/mSiO2) were obtained after the removal of the carbon layers from MCN@C/mSiO2 nanoparticles. The morphology, structure, magnetic hyperthermia ability, drug release behavior, in vitro cytotoxicity and cellular uptake of MMS nanoparticles were investigated...
2016: Science and Technology of Advanced Materials
https://www.readbyqxmd.com/read/27874299/cooling-effectiveness-of-a-modified-cold-water-immersion-method-after-exercise-induced-hyperthermia
#18
Katherine E Luhring, Cory L Butts, Cody R Smith, Jeffrey A Bonacci, Ramon C Ylanan, Matthew S Ganio, Brendon P McDermott
CONTEXT:  Recommended treatment for exertional heat stroke includes whole-body cold-water immersion (CWI). However, remote locations or monetary or spatial restrictions can challenge the feasibility of CWI. Thus, the development of a modified, portable CWI method would allow for optimal treatment of exertional heat stroke in the presence of these challenges. OBJECTIVE:  To determine the cooling rate of modified CWI (tarp-assisted cooling with oscillation [TACO]) after exertional hyperthermia...
November 22, 2016: Journal of Athletic Training
https://www.readbyqxmd.com/read/27865903/on-command-controlled-drug-release-by-diels-alder-reaction-using-bi-magnetic-core-shell-nano-carriers
#19
Mohaned Hammad, Valentin Nica, Rolf Hempelmann
A novel bi-functional thermo-responsive system, consisting of core/shell bi-magnetic nanoparticles with furan surface functionality, is bonded with N-(2-Carboxyethyl)maleimide through Diels-Alder reaction. The chemotherapeutics doxorubicin is attached onto the surface, with a high loading efficiency of 92%. This system with high responsiveness to a high frequency external alternating magnetic field shows a very good therapeutic efficiency in hyperthermia and drug release at relatively low temperatures (50°C)...
November 5, 2016: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/27865549/anaemia-and-fever-in-kidney-transplant-the-role-of-human-parvovirus-b19
#20
Yanet Parodis López, Raquel Santana Estupiñán, Silvia Marrero Robayna, Roberto Gallego Samper, Fernando Henríquez Palop, José Carlos Rivero Vera, Rafael Camacho Galán, María José Pena López, Nery Sablón González, Fayna González Cabrera, Elena Oliva Dámaso, Nicanor Vega Díaz, José Carlos Rodríguez Pérez
Infections remain an issue of particular relevance in renal transplant patients, particularly viral infections. Human parvovirus B19 infection causes severe refractory anaemia, pancytopenia and thrombotic microangiopathy. Its presence is recognized by analysing blood polymerase chain reaction (PCR) and by the discovery of typical giant proerythroblasts in the bone marrow. We report the case of a 65 year-old man with a history of deceased donor renal transplant in September 2014. At 38 days after the transplant, the patient presented progressive anaemia that was resistant to erythropoiesis-stimulating agents...
November 16, 2016: Nefrología: Publicación Oficial de la Sociedad Española Nefrologia
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