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Low intensity ultrasound

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https://www.readbyqxmd.com/read/29162156/the-use-of-5-fluorouracil-loaded-nanobubbles-combined-with-low-frequency-ultrasound-to-treat-hepatocellular-carcinoma-in-nude-mice
#1
Qiaoya Li, Hongyang Li, Chengjun He, Zhouhong Jing, Changan Liu, Juan Xie, Wenwen Ma, Huisheng Deng
OBJECTIVE: This study aimed to investigate the therapeutic effects of 5-fluorouracil (5-FU)-loaded nanobubbles irradiated with low-intensity, low-frequency ultrasound in nude mice with hepatocellular carcinoma (HCC). METHODS: A transplanted tumor model of HCC in nude mice was established in 40 mice, which were then randomly divided equally into four groups: group A (saline), group B (5-FU-loaded nanobubbles), group C (5-FU-loaded nanobubbles with non-low-frequency ultrasound), and group D (5-FU-loaded nanobubbles with low-frequency ultrasound)...
November 21, 2017: European Journal of Medical Research
https://www.readbyqxmd.com/read/29161715/management-of-biochemical-recurrence-after-primary-curative-treatment-for-prostate-cancer-a-review
#2
Walter Artibani, Antonio Benito Porcaro, Vincenzo De Marco, Maria A Cerruto, Salvatore Siracusano
How to manage patients with prostate cancer (PCa) with biochemical recurrence (BCR) following primary curative treatment is a controversial issue. Importantly, this prostate-specific antigen (PSA)-only recurrence is a surrogate neither of PCa-specific survival nor of overall survival. Physicians are therefore challenged with preventing or delaying the onset of clinical progression in those deemed at risk, while avoiding over-treating patients whose disease may never progress beyond PSA-only recurrence. Adjuvant therapy for radical prostatectomy (RP) or local radiotherapy (RT) has a role in certain at-risk patients, although it is not recommended in low-risk PCa owing to the significant side-effects associated with RT and androgen deprivation therapy (ADT)...
November 21, 2017: Urologia Internationalis
https://www.readbyqxmd.com/read/29161293/high-intensity-focused-ultrasound-ablation-around-the-tubing
#3
Jun Yang Siu, Chenhui Liu, Yufeng Zhou
High-intensity focused ultrasound (HIFU) has been emerging as an effective and noninvasive modality in cancer treatment with very promising clinical results. However, a small vessel in the focal region could be ruptured, which is an important concern for the safety of HIFU ablation. In this study, lesion formation in the polyacrylamide gel phantom embedded with different tubing (inner diameters of 0.76 mm and 3 mm) at varied flow speeds (17-339 cm/s) by HIFU ablation was photographically recorded. Produced lesions have decreased length (~30%) but slightly increased width (~6%) in comparison to that without the embedded tubing...
2017: PloS One
https://www.readbyqxmd.com/read/29160060/phase-transition-nanoparticles-as-multimodality-contrast-agents-for-the-detection-of-thrombi-and-targeting-thrombolysis-in-vitro-and-in-vivo-experiments
#4
Jie Xu, Jun Zhou, Yixin Zhong, Yu Zhang, Jia Liu, Yuli Chen, Liming Deng, Danli Sheng, Zhigang Wang, Haitao Ran, Dajing Guo
Thrombotic disease is extremely harmful to human health, and early detection and treatment can improve the prognosis and reduce mortality. Multimodal molecular imaging can provide abundant information about thrombi, but to date, few studies have used multimodal and multifunctional nanoparticles (NPs) for thrombus detection and targeting thrombolysis. In this study, phase transition multimodal and multifunctional NPs (EWVDV-Fe-Ink-PFH NPs) were constructed for the first time using a three-step emulsification and carbodiimide method, and the physical and chemical properties of the NPs were investigated...
November 21, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29158684/right-and-left-ventricular-function-in-hospitalized-children-with-respiratory-syncytial-virus-infection
#5
Thorsten Horter, Britt Nakstad, Omid Ashtari, Anne Lee Solevåg
Background: Extrapulmonary manifestations including cardiac dysfunction have been demonstrated in children with respiratory syncytial virus (RSV) infection requiring intensive care. The aim of this study was to examine cardiac function in hospitalized children with moderate RSV infection admitted to a regular pediatric ward. Methods: We used echocardiography to determine cardiac output, and right and left ventricular function in 26 patients (aged 2 weeks to 24 months) with RSV infection...
2017: Infection and Drug Resistance
https://www.readbyqxmd.com/read/29157478/treatment-of-low-flow-vascular-malformations-of-the-extremities-using-mr-guided-high-intensity-focused-ultrasound-preliminary-experience
#6
Pejman Ghanouni, Sirish Kishore, Matthew P Lungren, Rachelle Bitton, Lauren Chan, Raffi Avedian, Alberto Bazzocchi, Kim Butts Pauly, Alessandro Napoli, David M Hovsepian
Five patients with painful vascular malformations of the extremities that were refractory to standard treatment and were confirmed as low-flow malformations on dynamic contrast-enhanced magnetic resonance (MR) imaging were treated with MR imaging-guided high intensity focused ultrasound. Daily maximum numeric rating scale scores for pain improved from 8.4 ± 1.5 to 1.6 ± 2.2 (P = .004) at a median follow-up of 9 months (range, 4-36 mo). The size of the vascular malformations decreased on follow-up MR imaging (median enhancing volume, 8...
December 2017: Journal of Vascular and Interventional Radiology: JVIR
https://www.readbyqxmd.com/read/29157266/doxorubicin-combined-with-low-intensity-ultrasound-suppresses-the-growth-of-oral-squamous-cell-carcinoma-in-culture-and-in-xenografts
#7
Haixia Fan, Haixia Li, Guanyao Liu, Wei Cong, Hong Zhao, Wenwu Cao, Jinhua Zheng
BACKGROUND: Oral squamous cell carcinoma (OSCC) invades surrounding tissues by upregulating matrix metalloproteinases (MMPs) -2 and -9, which causes over-expression of the Hedgehog signaling proteins Shh and Gli-1 and degradation of the extracellular matrix, thereby creating a "highway" for tumor invasion. We explored the potential of low intensity ultrasound (LIUS) and doxorubicin (DOX) to inhibit the formation of this "highway". METHODS: MTT assays were used to examine OSCC cell viability after exposure to LIUS and DOX...
November 21, 2017: Journal of Experimental & Clinical Cancer Research: CR
https://www.readbyqxmd.com/read/29138458/low-intensity-pulsed-ultrasound-improves-behavioral-and-histological-outcomes-after-experimental-traumatic-brain-injury
#8
Wei-Shen Su, Chun-Hu Wu, Szu-Fu Chen, Feng-Yi Yang
The purpose of this study was to investigate the neuroprotective effects of low-intensity pulsed ultrasound (LIPUS) on behavioral and histological outcomes in a mouse model of traumatic brain injury (TBI). Mice subjected to controlled cortical impact injury were treated with LIPUS in the injured region daily for a period of 4 weeks. The effects of LIPUS on edema were observed by MR imaging in the mouse brain at 1 and 4 days following TBI. Brain water content, blood-brain barrier permeability, histology analysis, and behavioral studies were performed to assess the effects of LIPUS...
November 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29137765/effect-of-ultrasound-treatments-on-functional-properties-and-structure-of-millet-protein-concentrate
#9
Bahman Nazari, Mohammad Amin Mohammadifar, Saeedeh Shojaee-Aliabadi, Ehsan Feizollahi, Leila Mirmoghtadaie
In this study, the effect of high power ultrasound (US) probe in varying intensities and times (18.4, 29.58, and 73.95 W/cm(2) for 5, 12.5 and 20 min respectively) on functional properties of millet protein concentrate (MPC) was investigated, and also the structural properties of best modified treatment were evaluated by FTIR, DSC, Zeta potential and SDS-PAGE techniques. The results showed the solubility in all US treated MPC was significantly (p < .05) higher than those of the native MPC. Foaming capacity of native MPC (271...
March 2018: Ultrasonics Sonochemistry
https://www.readbyqxmd.com/read/29137037/a-case-report-of-recurrent-thyroid-inflammatory-myofibroblastic-tumor-and-its-metastasis-in-soft-tissue
#10
Jiajia Duan, Ying Wang
RATIONALE: Inflammatory myofibroblastic tumor (IMT) is a neoplasm of low malignant potential. The most frequent site of IMT is in the lung, whereas recurrent and metastasis of thyroid IMT has been seldom reported. PATIENT CONCERNS: A 57-year-old male presented with a 3-year history of painless thyroid mass. The physical examination revealed a diffusely enlarged thyroid which was firm. The thyroid function and antibodies were normal. Thyroid ultrasound revealed a hypoechoic mass in the left lobe and heterogeneous echo in the right lobe...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29132387/theoretically-proposed-optimal-frequency-for-ultrasound-induced-cartilage-restoration
#11
April D Miller, Anuradha Subramanian, Hendrik J Viljoen
BACKGROUND: Matching the frequency of the driving force to that of the system's natural frequency of vibration results in greater amplitude response. Thus we hypothesize that applying ultrasound at the chondrocyte's resonant frequency will result in greater deformation than applying similar ultrasound power at a frequency outside of the resonant bandwidth. Based on this resonant hypothesis, our group previously confirmed theoretically and experimentally that ultrasound stimulation of suspended chondrocytes at resonance (5 MHz) maximized gene expression of load inducible genes...
November 14, 2017: Theoretical Biology & Medical Modelling
https://www.readbyqxmd.com/read/29131837/evidence-for-congruent-impairment-in-micro-and-macrovascular-function-in-type-1-diabetes
#12
Concetta Irace, Valentina Messiniti, Bruno Tassone, Claudio Cortese, Eugene J Barrett, Agostino Gnasso
Diabetes affects large and small vessels through mechanisms only partially known. In the present study, we evaluated the function of capillaries and large arteries in subjects with type 1 diabetes mellitus (T1DM) to study the effect of chronic hyperglycemia in the absence of other cardiovascular risk factors. Twenty-five subjects with T1DM and 12 healthy age-matched controls were enrolled. Nine patients had mild or moderate retinopathy. Contrast enhanced ultrasound was used to measure perfusion of the deep forearm flexor muscle of the non-dominant arm at rest (baseline) and after an ischemic stimulus (reactive hyperemia)...
2017: PloS One
https://www.readbyqxmd.com/read/29126668/comparison-of-the-in-vitro-effects-of-low-level-laser-therapy-and-low-intensity-pulsed-ultrasound-therapy-on-bony-cells-and-stem-cells
#13
REVIEW
Mohammad Bayat, Amarjit Virdi, Fatemehalsadat Rezaei, Sufan Chien
To compare the in vitro effectiveness of Low-Level Laser Therapy (LLLT) and Low Intensity Pulsed Ultrasound (LIPUS) on bony cells and related stem cells. In this study, we aim to systematically review the published scientific literature which explores the use of LLLT and LIPUS to biostimulate the activity or the proliferation of bony cells or stem cells in vitro. We searched the database PubMed for LLLT or LIPUS, with/without bone, osteoblast, osteocyte, stem cells, the human osteosarcoma cell line (MG63), bone-forming cells, and cell culture (or in vitro)...
November 7, 2017: Progress in Biophysics and Molecular Biology
https://www.readbyqxmd.com/read/29126395/contrast-enhanced-ultrasound-of-small-cell-carcinoma-in-urinary-bladder-a-case-report-and-review-of-literature
#14
Meixiang Zhang, Chengcheng Niu, Ming Zhang, Qinghai Peng, Minzhi Ouyang
BACKGROUND: Small cell carcinoma of the urinary bladder (SCCB) is a relatively rare malignant bladder tumor, and few reports have investigated the microvasculature of SCCB imaged using contrast-enhanced ultrasound (CEUS). CASE PRESENTATION: A 63-year-old female was admitted to our hospital after experiencing painless gross hematuria for one week. The gray-scale ultrasound (US) demonstrated a 4.8 × 3.4 × 3.6-cm(3) hypoechoic mass in the apex of the urinary bladder with a wide base and an irregular surface; the mass did not move with changes in body position...
November 10, 2017: BMC Cancer
https://www.readbyqxmd.com/read/29117299/high-vs-low-dose-corticosteroid-injection-in-the-treatment-of-adhesive-capsulitis-with-severe-pain-a-randomized-controlled-double-blind-study
#15
Kyou Hyun Kim, Jong Wook Park, Sang Jun Kim
Objective: To compare the degree of pain relief between high-dose (40 mg of triamcinolone acetonide) and low-dose (20 mg of triamcinolone acetonide) corticosteroid injections in patients with severe pain due to adhesive capsulitis. Design: A prospective, randomized, double-blind, dose-comparative study. Subjects: A total of 32 patients who were diagnosed with adhesive capsulitis and who expressed severe pain intensity, 8 or more points on a numeric rating scale (NRS)...
October 7, 2017: Pain Medicine: the Official Journal of the American Academy of Pain Medicine
https://www.readbyqxmd.com/read/29111161/effect-of-low-intensity-pulsed-ultrasound-on-joint-injury-and-post-traumatic-osteoarthritis-an-animal-study
#16
Talal Zahoor, Reed Mitchell, Priya Bhasin, Yi Guo, Sharada Paudel, Lew Schon, Zijun Zhang
This study investigated the therapeutic potential of low-intensity pulsed ultrasound (LIPUS) in post-traumatic osteoarthritis (PTOA). Intra-articular fracture of the medial tibial plateau was surgically created in 30 rats. LIPUS was applied to the operated joints either for the first 2 wk (LIPUS1-2 group) or in weeks 4 and 5 after intra-articular fracture (LIPUS4-5 group). In controls, the operated knees were not treated with LIPUS (LIPUS0 group). The rats were monitored with weekly gait analysis and euthanized at week 8...
October 27, 2017: Ultrasound in Medicine & Biology
https://www.readbyqxmd.com/read/29109927/low-intensity-pulsed-ultrasound-and-halo-immobilization-is-an-effective-treatment-for-nonunion-following-traumatic-spondylolisthesis-of-the-axis
#17
Kohtaroh Oda, Tetsuro Ohba, Shigeto Ebata, Hirotaka Haro
This case report describes a unique case involving traumatic spondylolisthesis of the axis that resulted in nonunion, angulation, and displacement after conservative treatment with a cervical collar, but which was successfully achieved union with halo immobilization and low-intensity pulsed ultrasound (LIPUS). Halo immobilization of a traumatic spondylolisthesis in a 20-year-old patient, that previously failed to improve after wearing a cervical collar for 3 months, was immediately followed by treatment with a LIPUS device (SAFHS 4000J; Teijin Pharma, Tokyo, Japan) 20 minutes once daily to the right and left fracture sites which were located using fluoroscopic guidance...
October 2017: Journal of Neurological Surgery Reports
https://www.readbyqxmd.com/read/29109687/low-intensity-ultrasound-induced-anti-inflammatory-effects-are-mediated-by-several-new-mechanisms-including-gene-induction-immunosuppressor-cell-promotion-and-enhancement-of-exosome-biogenesis-and-docking
#18
Qian Yang, Gayani K Nanayakkara, Charles Drummer, Yu Sun, Candice Johnson, Ramon Cueto, Hangfei Fu, Ying Shao, Luqiao Wang, William Y Yang, Peng Tang, Li-Wen Liu, Shuping Ge, Xiao-Dong Zhou, Mohsin Khan, Hong Wang, Xiaofeng Yang
Background: Low-intensity ultrasound (LIUS) was shown to be beneficial in mitigating inflammation and facilitating tissue repair in various pathologies. Determination of the molecular mechanisms underlying the anti-inflammatory effects of LIUS allows to optimize this technique as a therapy for the treatment of malignancies and aseptic inflammatory disorders. Methods: We conducted cutting-edge database mining approaches to determine the anti-inflammatory mechanisms exerted by LIUS. Results: Our data revealed following interesting findings: (1) LIUS anti-inflammatory effects are mediated by upregulating anti-inflammatory gene expression; (2) LIUS induces the upregulation of the markers and master regulators of immunosuppressor cells including MDSCs (myeloid-derived suppressor cells), MSCs (mesenchymal stem cells), B1-B cells and Treg (regulatory T cells); (3) LIUS not only can be used as a therapeutic approach to deliver drugs packed in various structures such as nanobeads, nanospheres, polymer microspheres, and lipidosomes, but also can make use of natural membrane vesicles as small as exosomes derived from immunosuppressor cells as a novel mechanism to fulfill its anti-inflammatory effects; (4) LIUS upregulates the expression of extracellular vesicle/exosome biogenesis mediators and docking mediators; (5) Exosome-carried anti-inflammatory cytokines and anti-inflammatory microRNAs inhibit inflammation of target cells via multiple shared and specific pathways, suggesting exosome-mediated anti-inflammatory effect of LIUS feasible; and (6) LIUS-mediated physical effects on tissues may activate specific cellular sensors that activate downstream transcription factors and signaling pathways...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/29108135/regimens-of-ultrasound-surveillance-for-twin-pregnancies-for-improving-outcomes
#19
REVIEW
Jane G Woolcock, Rosalie M Grivell, Jodie M Dodd
BACKGROUND: Increased ultrasound surveillance of twin pregnancies has become accepted practice due to the higher risk of complications. There is no current consensus however as to the method and frequency of ultrasound monitoring that constitutes optimal care. OBJECTIVES: To systematically review the effects of different types and frequency of ultrasound surveillance for women with a twin pregnancy on neonatal, fetal and maternal outcomes. SEARCH METHODS: We searched Cochrane Pregnancy and Childbirth's Trials Register, ClinicalTrials...
November 7, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/29107031/prospective-multicenter-phase-ii-study-on-focal-therapy-hemiablation-of-the-prostate-with-high-intensity-focused-ultrasound-hifu
#20
Roman Ganzer, Boris Hadaschik, Sascha Pahernik, Daniel Koch, Daniel Baumunk, Timur Kuru, Axel Heidenreich, Jens-Uwe Stolzenburg, Martin Schostak, Andreas Blana
PURPOSE: To evaluate Focal therapy (FT) by means of high-intensity focussed ultrasound (HIFU) hemiablation in a prospective trial. MATERIALS AND METHODS: Prospective multicentre single arm study in patients with unilateral low/intermediate risk PC, treated from April 2013 through March 2016 in Germany (AUO study protocol AP 68/11). Unilateral PC was assessed by transrectal ultrasound (TRUS)-guided biopsy and multiparametric magnetic resonance imaging (mpMRI). Hemiablation was performed with the Ablatherm or Focal One device...
October 26, 2017: Journal of Urology
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