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https://www.readbyqxmd.com/read/29349520/experimental-study-of-5-fluorouracil-encapsulated-ethosomes-combined-with-co2-fractional-laser-to-treat-hypertrophic-scar
#1
Zhen Zhang, Jun Chen, Jun Huang, Yan Wo, Yixin Zhang, Xiangdong Chen
OBJECTIVE: This study is designed to explore permeability of ethosomes encapsulated with 5-florouracil (5-FU) mediated by CO2 fractional laser on hypertrophic scar tissues. Moreover, therapeutic and duration effect of CO2 fractional laser combined with 5-FU encapsulated ethosomes in rabbit ear hypertrophic scar model will be evaluated. METHODS: The permeated amount of 5-FU and retention contents of 5-FU were both determined by high-performance liquid chromatography (HPLC)...
January 18, 2018: Nanoscale Research Letters
https://www.readbyqxmd.com/read/29346599/magnetic-resonance-imaging-guided-laser-interstitial-thermal-therapy-for-the-treatment-of-hypothalamic-hamartomas-a-retrospective-review
#2
David S Xu, Tsinsue Chen, Randall J Hlubek, Ruth E Bristol, Kris A Smith, Francisco A Ponce, John F Kerrigan, Peter Nakaji
BACKGROUND: Hypothalamic hamartomas (HH) are rare lesions associated with treatment-resistant epilepsy. Open surgery results in modest seizure control (about 50%) but has a significant associated morbidity. Radiosurgery is limited to a subset of patients due to latent therapeutic effects. Magnetic resonance imaging-guided laser interstitial thermal therapy (LITT) offers a novel minimally invasive option. OBJECTIVE: To evaluate a single center's outcomes for the LITT treatment of HH...
January 13, 2018: Neurosurgery
https://www.readbyqxmd.com/read/29344312/an-endogenous-vaccine-based-on-fluorophores-and-multivalent-immunoadjuvants-regulates-tumor-micro-environment-for-synergistic-photothermal-and-immunotherapy
#3
Ling Li, Suleixin Yang, Linjiang Song, Yan Zeng, Tao He, Ning Wang, Chuan Yu, Tao Yin, Li Liu, Xiawei Wei, Qinjie Wu, Yuquan Wei, Li Yang, Changyang Gong
Recently, near-infrared (NIR) light-based photothermal therapy (PTT) has been widely applied in cancer treatment. However, in most cases, the tissue penetration depth of NIR light is not sufficient and thus photothermal therapy is unable to completely eradicate deep, seated tumors inevitably leading to recurrence of the tumor. Due to this significant limitation of NIR, improved therapeutic strategies are urgently needed. Methods: We developed an endogenous vaccine based on a novel nanoparticle platform for combinatorial photothermal ablation and immunotherapy...
2018: Theranostics
https://www.readbyqxmd.com/read/29344306/131i-labeled-copper-sulfide-loaded-microspheres-to-treat-hepatic-tumors-via-hepatic-artery-embolization
#4
Qiufang Liu, Yuyi Qian, Panli Li, Sihang Zhang, Jianjun Liu, Xiaoguang Sun, Michael Fulham, Dagan Feng, Gang Huang, Wei Lu, Shaoli Song
Purpose: Transcatheter hepatic artery embolization therapy is a minimally invasive alternative for treating inoperable liver cancer but recurrence is frequent. Multifunctional agents, however, offer an opportunity for tumor eradication. In this study, we were aim to synthesized poly (lactic-co-glycolic acid) (PLGA) microspheres encapsulating hollow CuS nanoparticles (HCuSNPs) and paclitaxel (PTX) that were then labeled with radioiodine-131 (131I) to produce 131I-HCuSNPs-MS-PTX. This compound combines the multi-theranostic properties of chemotherapy, radiotherapy and photothermal therapy...
2018: Theranostics
https://www.readbyqxmd.com/read/29344297/mesoporous-carbon-nanospheres-as-a-multifunctional-carrier-for-cancer-theranostics
#5
Libo Zhou, Ying Jing, Yubin Liu, Zhihe Liu, Duyang Gao, Haobin Chen, Weiye Song, Tao Wang, Xiaofeng Fang, Weiping Qin, Zhen Yuan, Sheng Dai, Zhen-An Qiao, Changfeng Wu
Optical nanomaterials with intense absorption in near-infrared (NIR) region hold great promise for biomedical applications such as photothermal therapy (PTT) and photoacoustic imaging (PAI). In this work, we report mesoporous carbon nanospheres (Meso-CNs) with broadband and intense absorption in the UV-Vis-NIR region (300-1400 nm) and explore their potential as a multifunctional platform for photoacoustic imaging and chemo-photothermal therapy. Methods: Meso-CNs were prepared by a "silica-assisted" synthesis strategy and characterized by transmission electron microscope and optical spectroscopy...
2018: Theranostics
https://www.readbyqxmd.com/read/29342359/semiconducting-photothermal-nanoagonist-for-remote-controlled-specific-cancer-therapy
#6
Xu Zhen, Chen Xie, Yuyan Jiang, Xiangzhao Ai, Bengang Xing, Kanyi Pu
Nanomedicines have shown success in cancer therapy, but the pharmacological actions of most nanomedicine are often nonspecific to cancer cells because of utilization of the therapeutic agents that induce cell apoptosis from inner organelles. We herein report the development of semiconducting photothermal nanoagonists that can remotely and specifically initiate the apoptosis of cancer cells from cell membrane. The organic nanoagonists comprise semiconducting polymer nanoparticles (SPNs) and capsaicin (Cap) as the photothermally-responsive nanocarrier and the agonist for activation of transient receptor potential cation channel subfamily V member 1 (TRPV1), respectively...
January 17, 2018: Nano Letters
https://www.readbyqxmd.com/read/29340854/therapeutic-efficacy-and-safety-of-a-1927-nm-fractionated-thulium-laser-on-pattern-hair-loss-an-evaluator-blinded-split-scalp-study
#7
Sung Bin Cho, Boncheol Leo Goo, Zhenlong Zheng, Kwang Ho Yoo, Jin-Soo Kang, Heesu Kim
Laser- or light-assisted therapies have been used to improve the perifollicular environment by upregulating the expression of growth factors and signaling molecules for hair restoration. The aim of our study was to preclinically and clinically evaluate the therapeutic efficacy and safety of a 1927-nm fractionated thulium laser on pattern hair loss (PHL). An in vivo hairless mouse study and an in vivo human skin environmental scanning electron microscopy (ESEM) study were performed with different power and energy settings...
January 16, 2018: Lasers in Medical Science
https://www.readbyqxmd.com/read/29337224/an-experimental-study-for-rapid-detection-and-quantification-of-endodontic-microbiota-following-photo-activated-disinfection-via-new-multiplex-real-time-pcr-assay
#8
Maryam Pourhajibagher, Reza Raoofian, Roghayeh Ghorbanzadeh, Abbas Bahador
BACKGROUND: The infected root canal system harbors one of the highest accumulations of polymicrobial infections. Since the eradication of endopathogenic microbiota is a major goal in endodontic infection therapy, photo-activated disinfection (PAD) can be used as an alternative therapeutic method in endodontic treatment. Compared to cultivation-based approaches, molecular techniques are more reliable for identifying microbial agents associated with endodontic infections. The purpose of this study was to evaluate the ability of designed multiplex real-time PCR protocol for the rapid detection and quantification of six common microorganisms involved in endodontic infection before and after the PAD...
January 11, 2018: Photodiagnosis and Photodynamic Therapy
https://www.readbyqxmd.com/read/29336463/protein-corona-in-drug-delivery-for-multimodal-cancer-therapy-in-vivo
#9
Eugenia Li Ling Yeo, Patricia Soo Ping Thong, Khee Chee Soo, James Chen Yong Kah
The protein corona is inevitably formed on nanoparticles (NPs) when they are introduced in vivo and has been associated with a reduction in targeting yield, immune recognition and rapid blood clearance, leading to poor tumor accumulation. We have recently shown that it is possible to exploit the protein corona for drug delivery by exploiting it for loading and triggering the release of a photosensitizer Chlorin e6 (Ce6) for simultaneous photodynamic (PDT) and photothermal therapy (PTT) in vitro. Here, we extended our previous in vitro studies to evaluate its effectiveness in vivo...
January 16, 2018: Nanoscale
https://www.readbyqxmd.com/read/29334216/lysosome-independent-intracellular-drug-gene-co-delivery-by-lipoprotein-derived-nanovector-for-synergistic-apoptosis-inducing-cancer-targeted-therapy
#10
Wei Wang, Kerong Chen, Yujie Su, Jielei Zhang, Min Li, Jianping Zhou
In this paper, reconstituted high-density lipoprotein (rHDL), a lipoprotein-derived nanovector, were constructed for co-delivery of paclitaxel (PTX) and wild type p53 gene (p53). The particle size and the zeta potential of PTX-DODAB/p53-rHDL nanoparticles were 177.2 nm and -20.06 mV, respectively. Meanwhile, they exhibited great serum stability and satisfactory sustained release characteristics in vitro. PTX-DODAB/pDNA-rHDL nanoparticles simultaneously improved the cellular uptake of PTX and pDNA via scavenger receptor B type I (SR-BI) mediated lysosome-independent internalization and promoted the transfection of pDNA in MCF-7 cells, which were revealed by flow cytometry and confocal laser scanning microscopy analyses...
January 15, 2018: Biomacromolecules
https://www.readbyqxmd.com/read/29333608/the-synergistic-effect-of-pdt-and-oxacillin-on-clinical-isolates-of-staphylococcus-aureus
#11
Natanel Iluz, Yasmin Maor, Natan Keller, Zvi Malik
BACKGROUND: Staphylococcus aureus is a major pathogen in clinical microbiology. It is known to cause infections at various body sites and can be life-threatening. The development of resistance to many well-established antibiotic treatments and the prevalence of methicillin-resistant S. aureus (MRAS) among hospital patients and the general community pose challenges in treating the pathogen. The antimicrobial effect of photodynamic therapy (PDT) has been a subject of study for a long time and can offer new strategies for dealing with resistant strains...
January 15, 2018: Lasers in Surgery and Medicine
https://www.readbyqxmd.com/read/29332450/identification-and-comparison-of-differentiation-related-proteins-in-hepatocellular-carcinoma-tissues-by-proteomics
#12
Sheng Zhao, Gang Su, Wenke Yang, Ping Yue, Bing Bai, Yanyan Lin, Jinduo Zhang, Yongjiang Ba, Zhiwen Luo, Xiaoming Liu, Lili Zhao, Yi Xie, Yaowei Xu, Shuo Li, Wenbo Meng, Xiaodong Xie, Xun Li
Histological differentiation is a major pathological criterion indicating the risk of tumor invasion and metastasis in patients with hepatocellular carcinoma. The degree of tumor differentiation is controlled by a complex interacting network of associated proteins. The principal aim of the present study is to identify the possible differentiation-related proteins which may be used for early diagnosis and more effective therapies. We compared poorly differentiated and well-differentiated hepatocellular carcinoma tissues by using 2-dimensional gel electrophoresis and matrix-assisted laser desorption ionization time-of-flight mass spectrometry...
December 2017: Technology in Cancer Research & Treatment
https://www.readbyqxmd.com/read/29325210/a-new-co-p-nanocomposite-with-ultrahigh-relaxivity-for-in-vivo-magnetic-resonance-imaging-guided-tumor-eradication-by-chemo-photothermal-synergistic-therapy
#13
Jianhua Liu, Longhai Jin, Yinghui Wang, Xing Ding, Songtao Zhang, Shuyan Song, Daguang Wang, Hongjie Zhang
Design of new nanoagents that intrinsically have both diagnostic imaging and therapeutic capabilities is highly desirable for personalized medicine. In this work, a novel nanotheranostic agent is fabricated based on polydopamine (PDA)-functionalized Co-P nanocomposites (Co-P@PDA) for magnetic resonance imaging (MRI)-guided combined photothermal therapy and chemotherapy. The ultrahigh relaxivity of 224.61 mm-1 s-1 can enable Co-P@PDA to be applied as an excellent contrast agent for MRI in vitro and in vivo, providing essential and comprehensive information for tumor clinical diagnosis...
January 11, 2018: Small
https://www.readbyqxmd.com/read/29323212/multimodal-tumor-homing-chitosan-oligosaccharide-coated-biocompatible-palladium-nanoparticles-for-photo-based-imaging-and-therapy
#14
Subramaniyan Bharathiraja, Nhat Quang Bui, Panchanathan Manivasagan, Madhappan Santha Moorthy, Sudip Mondal, Hansu Seo, Nguyen Thanh Phuoc, Thi Tuong Vy Phan, Hyehyun Kim, Kang Dae Lee, Junghwan Oh
Palladium, a near-infrared plasmonic material has been recognized for its use in photothermal therapy as an alternative to gold nanomaterials. However, its potential application has not been explored well in biomedical applications. In the present study, palladium nanoparticles were synthesized and the surface of the particles was successfully modified with chitosan oligosaccharide (COS), which improved the biocompatibility of the particles. More importantly, the particles were functionalized with RGD peptide, which improves particle accumulation in MDA-MB-231 breast cancer cells and results in enhanced photothermal therapeutic effects under an 808-nm laser...
January 11, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29322402/laser-treatment-of-primary-axillary-hyperhidrosis-a-review-of-the-literature
#15
Jessica Cervantes, Marina Perper, Ariel E Eber, Raymond M Fertig, John P Tsatalis, Keyvan Nouri
Hyperhidrosis o`ccurs when the body produces sweat beyond what is essential to maintain thermal homeostasis. The condition tends to occur in areas marked by high-eccrine density such as the axillae, palms, and soles and less commonly in the craniofacial area. The current standard of care is topical aluminum chloride hexahydrate antiperspirant (10-20%), but other treatments such as anticholinergics, clonidine, propranolol, antiadrenergics, injections with attenuated botulinum toxin, microwave technology, and surgery have been therapeutically implicated as well...
January 11, 2018: Lasers in Medical Science
https://www.readbyqxmd.com/read/29322247/comparison-of-the-neuroinflammatory-responses-to-selective-retina-therapy-and-continuous-wave-laser-photocoagulation-in-mouse-eyes
#16
Jung Woo Han, Juhye Choi, Young Shin Kim, Jina Kim, Ralf Brinkmann, Jungmook Lyu, Tae Kwann Park
PURPOSE: This study investigated microglia and inflammatory cell responses after selective retina therapy (SRT) with microsecond-pulsed laser in comparison to continuous-wave laser photocoagulation (cwPC). METHODS: Healthy C57BL/6 J mice were treated with either a train of short pulses (SRT; 527-nm, Q-switched, 1.7-μs pulse) or a conventional thermal continuous-wave (532-nm, 100-ms pulse duration) laser. The mice were sacrificed and their eyes were enucleated 1, 3, 7, and 14 days after both laser treatments...
January 10, 2018: Graefe's Archive for Clinical and Experimental Ophthalmology
https://www.readbyqxmd.com/read/29303196/biodegradable-moox-nanoparticles-with-efficient-near-infrared-photothermal-and-photodynamic-synergetic-cancer-therapy-at-the-second-biological-window
#17
Wenyan Yin, Tao Bao, Xiao Zhang, Qin Gao, Jie Yu, Xinghua Dong, Liang Yan, Zhanjun Gu, Yuliang Zhao
Near-infrared (NIR) laser induced phototherapy has been considered as a noninvasive option for cancer therapy. Herein, we report plasmonic PEGylated molybdenum oxide nanoparticles (PEG-MoOx NPs) that were synthesized by using a facile hydrothermal method. The PEG-MoOx NPs exhibit broad absorption at the NIR biological window and remarkable photothermal conversion ability in the first (808 nm) and the second (1064 nm) windows. Moreover, the biocompatible PEG-MoOx NPs exhibit effective cellular uptake and could be eliminated gradually from the liver and spleen in mice...
January 5, 2018: Nanoscale
https://www.readbyqxmd.com/read/29302697/-laser-and-light-therapy-for-treatment-of-radiation-dermatitis
#18
REVIEW
H-J Laubach, J Robijns
Radiation dermatitis (RD), an inflammatory skin disease that can be an unwanted side effect of medical radiation therapy (RT), most commonly occurs in patients undergoing cancer of the ENT, anal, and vulvar regions. The side effects on the skin and mucous membranes occur within a few weeks after the initiation of RT; however, late side effects can develop months to years after the RT. Therapeutically, various treatment approaches are considered such as pentoxifylline, hyperbaric oxygen therapy, laser therapy, and PBMT...
January 4, 2018: Der Hautarzt; Zeitschrift Für Dermatologie, Venerologie, und Verwandte Gebiete
https://www.readbyqxmd.com/read/29298401/penile-lichen-sclerosus-treated-with-1927%C3%A2-nm-thulium-fiber-laser-and-photodynamic-therapy-a-new-possible-therapeutic-approach
#19
Santo Raffaele Mercuri, Pina Brianti, Antonio Foti, Marco Bartolucci, Annunziata Dattola, Steven Paul Nisticò
OBJECTIVE: We treated two patients with recalcitrant lichen sclerosus (LS) of the penis with a combination of 1927 nm thulium fiber laser and methyl-aminolevulinate (MAL) photodynamic therapy (PDT). BACKGROUND DATA: Therapy of LS is based on topical potent steroids, emollients, and topical calcineurin inhibitors. Circumcision is effective, but not always accepted. PDT represents a valid therapeutic option in refractory cases, but there are no reports about the association with 1927 nm thulium laser in the treatment of this pathology...
January 3, 2018: Photomedicine and Laser Surgery
https://www.readbyqxmd.com/read/29298037/mthpc-conjugated-gold-nanoparticles-as-a-tool-to-improve-photodynamic-therapy
#20
Elina Haimov, Hana Weitman, Shlomi Polani, Hadas Schori, David Zitoun, Orit Shefi
Photodynamic Therapy (PDT) is a promising therapeutic modality for cancer. However, current protocols using bare drugs suffer from several limitations that impede its beneficial clinical effects. Here, we introduce a new approach for an efficient PDT treatment. It involves conjugating a PDT agent, meso-tetrahydroxy-phenylchlorin (mTHPC) photosensitizer, to gold nanoparticles (AuNPs) that serve as carriers for the drug. AuNPs have a number of characteristics that make them highly suitable to function as drug carriers: they are biocompatible, serve as biomarkers and function as contrast agents in vitro and in vivo...
January 3, 2018: ACS Applied Materials & Interfaces
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