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hyperthermia treatment

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https://www.readbyqxmd.com/read/28643239/serum-histones-as-biomarkers-of-the-severity-of-heatstroke-in-dogs
#1
Yaron Bruchim, Isaac Ginsburg, Gilad Segev, Ahmad Mreisat, Yochai Avital, Itamar Aroch, Michal Horowitz
Heatstroke is associated with systemic inflammatory response syndrome, leading to multiple organ dysfunction and death. Currently, there is no specific treatment decreasing hyperthermia-induced inflammatory/hemostatic derangements. Emerging studies indicate that histones leaking from damaged cells into the extracellular space are toxic, pro-inflammatory, and pro-thrombotic. We therefore hypothesize that serum histones (sHs) are elevated during heatstroke and are associated with the severity of the disease. Sixteen dogs with heatstroke and seven healthy controls were included in the study...
June 22, 2017: Cell Stress & Chaperones
https://www.readbyqxmd.com/read/28641499/a-comprehensive-model-for-heat-induced-radio-sensitization
#2
Sarah Catharina Brüningk, Jannat Ijaz, Ian Rivens, Simeon Nill, Gail Ter Haar, Uwe Oelfke
Combined radiotherapy (RT) and hyperthermia (HT) treatments may improve treatment outcome by heat induced radio-sensitization. We propose an empirical cell survival model (AlphaR model) to describe this multimodality therapy. The model is motivated by the observation that heat induced radio-sensitization may be explained by a reduction in the DNA damage repair capacity of heated cells. We assume that this repair is only possible up to a threshold level above which survival will decrease exponentially with dose...
June 23, 2017: International Journal of Hyperthermia
https://www.readbyqxmd.com/read/28634817/identification-of-the-acclimation-genes-in-transcriptomic-responses-to-heat-stress-of-white-pekin-duck
#3
Jun-Mo Kim, Kyu-Sang Lim, Mijeong Byun, Kyung-Tai Lee, Young-Rok Yang, Mina Park, Dajeong Lim, Han-Ha Chai, Han-Tae Bang, Jong Hwangbo, Yang-Ho Choi, Yong-Min Cho, Jong-Eun Park
White Pekin duck is an important meat resource in the livestock industries. However, the temperature increase due to global warming has become a serious environmental factor in duck production, because of hyperthermia. Therefore, identifying the gene regulations and understanding the molecular mechanism for adaptation to the warmer environment will provide insightful information on the acclimation system of ducks. This study examined transcriptomic responses to heat stress treatments (3 and 6 h at 35 °C) and control (C, 25 °C) using RNA-sequencing analysis of genes from the breast muscle tissue...
June 20, 2017: Cell Stress & Chaperones
https://www.readbyqxmd.com/read/28626897/ultrastable-near-infrared-conjugated-polymer-nanoparticles-for-dually-photoactive-tumor-inhibition
#4
Tao Yang, Ling Liu, Yibin Deng, Zhengqing Guo, Guobing Zhang, Zhishen Ge, Hengte Ke, Huabing Chen
It is highly desired that satisfactory photoactive agents with ideal photophysical characteristics are explored for potent cancer phototherapeutics. Herein, bifunctional nanoparticles of low-bandgap donor-acceptor (D-A)-type conjugated-polymer nanoparticles (CP-NPs) are developed to afford a highly efficient singlet-to-triplet transition and photothermal conversion for near-infrared (NIR) light-induced photodynamic (PDT)/photothermal (PTT) treatment. CP-NPs display remarkable NIR absorption with the peak at 782 nm, and perfect resistance to photobleaching...
June 19, 2017: Advanced Materials
https://www.readbyqxmd.com/read/28625829/combinatorial-immunotherapy-and-nanoparticle-mediated-hyperthermia
#5
Austin J Moy, James W Tunnell
Immune checkpoint therapy has become the first widely adopted immunotherapy for patients with late stage malignant melanoma, with potential for a wide range of cancers. While some patients can experience long term disease remission, this is limited only to a subset of patients and tumor types. The path forward to expand this therapy to more patients and tumor types is currently thought to be combinatorial treatments, the combination of immunotherapy with other treatments. In this review, the combinatorial approach of immune checkpoint therapy combined with nanoparticle-assisted localized hyperthermia is discussed, starting with an overview of the different nanoparticle hyperthermia approaches in development, an overview of the state of immune checkpoint therapy, recent reports of immune checkpoint therapy and nanoparticle-assisted hyperthermia in a combinatorial approach, and finally a discussion of future research topics and areas to be explored in this new combinatorial approach to cancer treatment...
June 15, 2017: Advanced Drug Delivery Reviews
https://www.readbyqxmd.com/read/28625619/intra-thoracic-chemo-hyperthermia-for-pleural-recurrence-of-thymoma
#6
Jean Michel Maury, Nicolas Girard, Mayeul Tabutin, Renaud Grima, Lara Chalabreysse, Isabelle Pavlakovic, Annie Sayag-Beaujard, Caroline Leroux, Pierre-Jean Souquet, Olivier Glehen, François Tronc
BACKGROUND: Pleural recurrences are a hallmark of thymomas, and represent a challenge for multidisciplinary management. The purpose of this study was to assess the feasibility and the results in terms of morbidity, mortality and survival rates, of Intra-Thoracic Chemo-Hyperthermia (ITCH) for the treatment of pleural recurrences of thymomas. METHODS: Retrospective analysis of 19 consecutives patients between 1997 and 2015 treated by surgical cytoreduction (pleurectomy) followed by ITCH with 25mg/m(2) of mitomycin, and 50mg/m(2) of Cisplatin...
June 2017: Lung Cancer: Journal of the International Association for the Study of Lung Cancer
https://www.readbyqxmd.com/read/28624871/synthesis-and-application-of-magnetite-dextran-spermine-nanoparticles-in-breast-cancer-hyperthermia
#7
Reza Avazzadeh, Ebrahim Vasheghani-Farahani, Masoud Soleimani, Saeid Amanpour, Mohsen Sadeghi
Cancer treatment has been very challenging in recent decades. One of the most promising cancer treatment methods is hyperthermia, which increases the tumor temperature (41-45 °C). Magnetic nanoparticles have been widely used for selective targeting of cancer cells. In the present study, magnetic dextran-spermine nanoparticles, conjugated with Anti-HER2 antibody to target breast cancer cells were developed. The magnetic dextran-spermine nanoparticles (DMNPs) were prepared by ionic gelation, followed by conjugation of antibody to them using EDC-NHS method...
June 17, 2017: Progress in biomaterials
https://www.readbyqxmd.com/read/28619470/whole-body-hyperthermia-and-a-subthreshold-dose-of-citalopram-act-synergistically-to-induce-antidepressant-like-behavioral-responses-in-adolescent-rats
#8
Matthew W Hale, Jodi L Lukkes, Kathleen F Dady, Kyle J Kelly, Evan D Paul, David G Smith, Charles L Raison, Christopher A Lowry
BACKGROUND: Open and randomized, double blind, placebo-controlled clinical trials have demonstrated clinical efficacy of infrared whole-body hyperthermia in treatment of major depressive disorder (MDD). Demonstration of antidepressant-like behavioral effects of whole-body hyperthermia in preclinical rodent models would provide further support for the clinical use of infrared whole-body hyperthermia for the treatment of MDD, and would provide additional opportunities to explore underlying mechanisms...
June 12, 2017: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/28610455/non-fourier-thermal-transport-induced-structural-hierarchy-and-damage-to-collagen-ultrastructure-subjected-to-laser-irradiation
#9
Nilamani Sahoo, Arunn Narasimhan, Purbarun Dhar, Sarit Kumar Das
Comprehending the mechanism of thermal transport through biological tissues is an important factor for optimal ablation of cancerous tissues and minimising collateral tissue damage. The present study reports detailed mapping of the rise in internal temperature within the tissue mimics due to NIR (1064 nm) laser irradiation, both for bare mimics and with gold nanostructures infused. Gold nanostructures such as mesoflowers and nano spheres have been synthesized and used as photothermal converters to enhance the temperature rise, resulting in achieving the desired degradation of malignant tissue in targeted region...
June 13, 2017: International Journal of Hyperthermia
https://www.readbyqxmd.com/read/28605224/effect-of-a-cooling-kit-on-physiology-and-performance-following-exercise-in-the-heat
#10
Cody R Smith, Cory L Butts, J D Adams, Matthew A Tucker, Nicole E Moyen, Matthew S Ganio, Brendon P McDermott
CONTEXT: Exercising in the heat leads to an increase in body temperature that can increase the risk of heat illness or cause detriments in exercise performance. OBJECTIVE: To examine a phase change heat emergency kit (HEK) on thermoregulatory and perceptual responses, and subsequent exercise performance following exercise in the heat. DESIGN: Two randomized crossover trials which consisted of 30 minutes of exercise, 15 minutes of treatment (T1), performance testing (5-10-5 pro-agility test, 1500 m run), and another 15 minutes of treatment (T2) identical to T1...
June 12, 2017: Journal of Sport Rehabilitation
https://www.readbyqxmd.com/read/28598900/interleaved-mapping-of-temperature-and-longitudinal-relaxation-rate-to-monitor-drug-delivery-during-magnetic-resonance-guided-high-intensity-focused-ultrasound-induced-hyperthermia
#11
Esther Kneepkens, Edwin Heijman, Jochen Keupp, Steffen Weiss, Klaas Nicolay, Holger Grüll
OBJECTIVES: Magnetic resonance-guided high-intensity focused ultrasound (MR-HIFU) is a method to heat lesions noninvasively to a stable, elevated temperature and a well-suited method to induce local hyperthermia (41°C-43°C) in deep-seated tissues. Magnetic Resonance (MR) imaging provides therapy planning on anatomical images and offers temperature feedback based on near-real-time MR thermometry. Although constant acquisition of MR thermometry data is crucial to ensure prolonged hyperthermia, it limits the freedom to perform measurements of other MR parameters, which are of interest during hyperthermia treatments...
June 8, 2017: Investigative Radiology
https://www.readbyqxmd.com/read/28592133/concurrent-hyperthermia-and-re-irradiation-for-recurrent-high-grade-gliomas
#12
J Heo, S H Kim, Y T Oh, M Chun, O K Noh
Salvage therapy for recurrent high grade gliomas (HGG) includes surgery, radiotherapy and chemotherapy, however, standard treatment does not exist. We evaluated the tolerability and efficacy of re-irradiation (re-RT) with hyperthermia (HT) for patients with recurrent HGG. From September 2010 to July 2015, 20 patients with recurrent HGG were treated with re-RT and HT. The radiotherapy dose of 30 Gray (Gy) was delivered with 2 Gy per fraction daily, and HT was performed twice weekly. Primary endpoints were treatment compliance and toxicity...
June 8, 2017: Neoplasma
https://www.readbyqxmd.com/read/28588736/treatment-outcomes-of-concurrent-hyperthermia-and-chemoradiotherapy-for-pancreatic-cancer-insights-into-the-significance-of-hyperthermia-treatment
#13
Toshiya Maebayashi, Naoya Ishibashi, Takuya Aizawa, Masakuni Sakaguchi, Tsutomu Sato, Jiro Kawamori, Yoshiaki Tanaka
Patients with locally advanced unresectable pancreatic cancer (LAUPC) have a poor prognosis. In addition their quality of life impaired by cancer pain and biliary tract infections. Therefore, multimodality therapy and selection of optimal treatment methods are essential for achieving prolonged survival. The present study investigated the significance of using hyperthermia concurrently with multimodality therapy to improve treatment outcomes in patients with LAUPC. In total, 13 patients receiving concurrent hyperthermia and chemoradiotherapy (HCR) or chemoradiotherapy (CR) alone for LAUPC between 2002 and 2013 were analyzed retrospectively...
June 2017: Oncology Letters
https://www.readbyqxmd.com/read/28588670/anticancer-effects-of-%C3%AE-elemene-with-hyperthermia-in-lung-cancer-cells
#14
Zhibing Wu, Ting Wang, Yanmei Zhang, Zhishuang Zheng, Shuhuan Yu, Saisai Jing, Sumei Chen, Hao Jiang, Shenglin Ma
β-elemene is a novel, plant-derived anticancer drug, which has been used to target multiple solid tumor types. Hyperthermia is an adjuvant therapeutic modality to treat cancer. However, the underlying mechanisms associated with the efficacy of these two treatments are largely unknown. The aim of the present study was to evaluate the effects of β-elemene combined with hyperthermia in lung cancer cell lines. An MTT assay was used to determine cell viability. The cell cycle and apoptosis were analyzed using flow cytometry...
June 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28588337/intra-operative-hyperthermia-in-a-young-angus-bull-with-a-fatal-outcome
#15
Alicia Skelding, Alexander Valverde
A healthy, 9-month-old black Angus bull was presented for elective penile-preputial translocation and caudal epididymectomy. After premedication and induction, general anesthesia was maintained with inhalant anesthetic. Over an hour into the anesthetic period the bull developed severe hyperthermia and hypercapnia that resulted in fatality despite treatment efforts.
June 2017: Canadian Veterinary Journal. la Revue Vétérinaire Canadienne
https://www.readbyqxmd.com/read/28585957/heterogeneously-nd-3-doped-single-nanoparticles-for-nir-induced-heat-conversion-luminescence-and-thermometry
#16
Lukasz Marciniak, Aleksandra Pilch, Sebastian Arabasz, Dayong Jin, Artur Bednarkiewicz
The current frontier in nanomaterials engineering is to intentionally design and fabricate heterogeneous nanoparticles with desirable morphology and composition, and to integrate multiple functionalities through highly controlled epitaxial growth. Here we show that heterogeneous doping of Nd(3+) ions following a core-shell design already allows three optical functions, namely efficient (η > 72%) light-to-heat conversion, bright NIR emission, and sensitive (SR > 0.1% K(-1)) localized temperature quantification, to be built within a single ca...
June 6, 2017: Nanoscale
https://www.readbyqxmd.com/read/28582919/design-of-an-ultrasonic-physiotherapy-system-with-pulse-wave-feedback-control
#17
Peng Pan, Yang Luo, Zhangyong Li, Wei Wang, Yu Pang
BACKGROUND: Due to different physical and biological mechanisms behind ultrasound hyperthermia and phonophoresis, the requirement for ultrasound power, frequency and control modes varies. OBJECTIVE: This paper introduces an adaptive ultrasonic physiotherapy system based on real-time surveillance over physiological characteristics of the patients, which in turn assists the individual treatment and dose limitation in auxiliary rehabilitation. METHODS: The method essentially takes advantage of distinctive characteristics of two different phases (systole and diastole) of the human cardiac cycle as a medium for modulation...
May 26, 2017: Technology and Health Care: Official Journal of the European Society for Engineering and Medicine
https://www.readbyqxmd.com/read/28580979/design-of-tpgs-functionalized-cu3bis3-nanocrystals-with-strong-absorption-in-the-second-near-infrared-window-for-radiation-therapy-enhancement
#18
Jiangfeng Du, Xiaopeng Zheng, Yuan Yong, Jie Yu, Xinghua Dong, Chenyang Zhang, Ruyi Zhou, Bai Li, Liang Yan, Chunying Chen, Zhanjun Gu, Yuliang Zhao
Integrating radiation therapy with high-depth photothermal therapy in the second near-infrared (NIR) window is highly required for efficient treatment of deep-seated tumor cells. Here, we constructed a multifunctional nano-theranostic with bimetallic chalcogenide nanocrystals (NCs) functionalized with amphiphilic d-α-tocopherol polyethylene glycol 1000 succinate (TPGS-Cu3BiS3). Benefiting from the strong absorbance of both X-ray and NIR light in the second NIR window, TPGS-Cu3BiS3 CNs can not only deposit more radiation dose to trigger enhanced radiation damage in vivo, but also conduct photo-induced hyperthermia for thermal ablation in the second NIR window and effective improvement of tumor oxygenation to overcome the hypoxia-associated radio-resistance of tumors...
June 5, 2017: Nanoscale
https://www.readbyqxmd.com/read/28580312/the-role-of-radiofrequency-hyperthermia-in-the-radiosensitization-of-a-human-prostate-cancer-cell-line
#19
Azam Janati Esfahani, Seied Rabi Mahdavi, Mohammad Bagher Shiran, Samideh Khoei
OBJECTIVE: This study evaluated enhanced induced DNA damages and apoptosis of a spheroid culture of DU145 prostate cancer cells treated by a combination of radiofrequency hyperthermia (RF HT) with radiation treatment (RT) from an external radiotherapy machine compared to RT alone. MATERIALS AND METHODS: In this experimental study, DU145 cells were cultured as spheroids until they reached 300 µm in diameter. We exposed these cultures to either: RF HT for 90 minutes at 43˚C originated from a Celsius TCS system, RF HT followed by RT at doses of 2 Gy or 4 Gy (15 MV energy) with 15-minute interval, or RT alone at the above mentioned doses...
2017: Cell Journal
https://www.readbyqxmd.com/read/28580311/enhanced-dna-damages-of-human-prostate-cancer-cells-induced-by-radiofrequency-capacitive-hyperthermia-pre-and-post-x-rays-6-mv-versus-15-mv
#20
Seied Rabi Mahdavi, Azam Janati Esfahani, Mohammad Bagher Shiran, Samideh Khoei, Nader Estiri
OBJECTIVE: This study aimed to determine the effect of 13.56 MHz radiofrequency (RF) capacitive hyperthermia (HT) on radiosensivity of human prostate cancer cells pre and post X-ray radiation treatment (RT). MATERIALS AND METHODS: In this experimental study, the human prostate cancer cell line DU145 was cultured as 300 µm diameter spheroids. We divided the spheroids into group I: control, group II: HT at 43˚C for 30 minutes (HT), group III: 4 Gy irradiation with 6 MV X-ray [RT (6 MV)], group IV: 4 Gy irradiation with 15 MV X-ray [RT (15 MV)], group V: HT+RT (6 MV), group VI: HT+RT (15 MV), group VII: RT (6 MV)+HT, and group VIII: RT (15 MV)+HT...
2017: Cell Journal
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