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Low intensity ultrasound

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https://www.readbyqxmd.com/read/28633833/recent-advances-in-ultrasonic-treatment-challenges-and-field-applications-for-controlling-harmful-algal-blooms-habs
#1
REVIEW
Jungsu Park, Jared Church, Younggyu Son, Keug-Tae Kim, Woo Hyoung Lee
Algal blooms are a naturally occurring phenomenon which can occur in both freshwater and saltwater. However, due to excess nutrient loading in water bodies (e.g. agricultural runoff and industrial activities), harmful algal blooms (HABs) have become an increasing issue globally, and can even cause health effects in humans due to the release of cyanotoxins. Among currently available treatment methods, sonication has received increasing attention for algal control because of its low impact on ecosystems and the environment...
September 2017: Ultrasonics Sonochemistry
https://www.readbyqxmd.com/read/28633823/sono-synthesis-of-solar-light-responsive-s-n-c-tri-doped-tio2-photo-catalyst-under-optimized-conditions-for-degradation-and-mineralization-of-diclofenac
#2
Sara Ramandi, Mohammad H Entezari, Narjes Ghows
C-N-S-tri doped TiO2 anatase phase was synthesized using a facile, effective and novel sonochemical method at low frequency (20kHz) and at room temperature. Titanium butoxide as the titanium precursor and thiourea as the dopant source were used in the synthesis of the photo-catalyst. The effects of important parameters such as thiourea/Ti molar ratio, ultrasound intensity, sonication time and temperature were studied on the synthesis of tri-doped TiO2. The XPS results confirmed the presence of N, S, and C in the photo-catalyst...
September 2017: Ultrasonics Sonochemistry
https://www.readbyqxmd.com/read/28633821/enhanced-production-of-hypocrellin-a-by-ultrasound-stimulation-in-submerged-cultures-of-shiraia-bambusicola
#3
Chun Xiao Sun, Yan Jun Ma, Jian Wen Wang
Hypocrellin A (HA), a naturally occurring fungal perylenequinone, is widely used in clinic to treat skin diseases and developed as a photodynamic therapy (PDT) agent against cancers. In this study, a low intensity ultrasound (US, 0.28W/cm(2) at 40kHz) was conducted thrice of repeated US exposure (5-min) with an interval of 12h to stimulate HA production of Shiraia bambusicola after 72h of the initial submerged cultures. US not only increased the content of HA by 177.2% in mycelia, but stimulated the release of HA into the medium with the highest total production of HA (247...
September 2017: Ultrasonics Sonochemistry
https://www.readbyqxmd.com/read/28632669/effect-of-low-intensity-pulsed-ultrasound-lipus-on-endochondral-ossification-via-the-wnt-signaling-pathway
#4
Ken Kumagai, Yasuteru Yamaguchi, Kazuma Miyatake, Hironori Tanabe, Sosuke Imai, Tomoyuki Saito
OBJECTIVE: We have previously demonstrated that LIPUS stimulates endochondral ossification with decreased expression of sclerostin. The Wnt signaling pathway was examined in vitro to further address the effect of LIPUS on endochondral ossification. MATERIALS AND METHODS: ATDC5 cells were plated at an initial density of 6 × 10 cells/well in a 6-multiwell plate and cultured in the presence of 5% FBS plus ITS. The bottom of the culture plate was treated every day with LIPUS for 20 minutes...
July 2017: Journal of Orthopaedic Trauma
https://www.readbyqxmd.com/read/28632668/low-intensity-pulsed-ultrasound-lipus-promotes-bmp9-induced-osteogenesis-and-suppresses-inflammatory-responses-in-human-periodontal-ligament-derived-stem-cells
#5
Joji Kusuyama, Toshiaki Nakamura, Tomokazu Ohnishi, Nahoko Eiraku, Kazuyuki Noguchi, Tetsuya Matsuguchi
OBJECTIVE: We previously reported that low intensity pulsed ultrasound (LIPUS) promotes marrow stromal cell (MSC) osteogenesis and suppresses the LPS-induced inflammatory response in osteoblasts. Here, we examined the effects of LIPUS on human periodontal ligament-derived stem cells (hPDLSCs) in chronic inflammatory bone disease, such as periodontitis. MATERIALS AND METHODS: hPDLSCs were collected from 3 healthy third molars. hPDLSCs were induced to differentiate by either recombinant BMP2 or BMP9 with or without daily LIPUS treatment (20 min/d)...
July 2017: Journal of Orthopaedic Trauma
https://www.readbyqxmd.com/read/28632667/study-on-ultrasound-irradiation-induction-of-electrical-potentials-in-bone
#6
Mami Matsukawa, Sayaka Matsukawa
OBJECTIVE: It is well known that applied stress induces electrical potentials in bone. We have experimentally studied whether induced potentials could be found in bone using an ultrasound irradiation system similar to low-intensity pulsed ultrasound (LIPUS). MATERIALS AND METHODS: Circular plate specimens (diameter 10 mm, thickness 1 mm) were obtained from bovine femora in order to determine if bone behaved as a piezoelectric material. Using these specimens, ultrasound receivers were fabricated...
July 2017: Journal of Orthopaedic Trauma
https://www.readbyqxmd.com/read/28632666/change-in-calcaneal-bone-strength-in-long-term-care-residents-treated-with-low-intensity-pulsed-ultrasound
#7
Hiroyasu Okuizumi, Kiyoshi Koyano, Kazuya Kurosawa, Naoto Kamide, Ayako Soyano
OBJECTIVE: We examined the effect of low-intensity pulsed ultrasound (LIPUS) on bone strength in osteoporotic elderly residents. MATERIALS AND METHODS: This was a randomized controlled trial. Elderly residents with osteoporosis in a long-term care facility were treated with LIPUS (oscillation frequency 100 KHz) that involved treatment of the heel bone for 2 minutes a day. The selection of the treated heel was decided randomly with a personal computer. The heel bone mineral density before and after treatment was measured by calcaneal quantitative ultrasound (GE-1000 Express)...
July 2017: Journal of Orthopaedic Trauma
https://www.readbyqxmd.com/read/28632665/effect-of-low-intensity-pulsed-ultrasound-on-bone-healing-at-osteotomy-sites-after-open-wedge-high-tibial-osteotomy
#8
Kenichi Goshima, Takeshi Sawaguchi, Kenji Shigemoto, Sintaro Iwai, Akira Nakanishi, Ken Ueoka
OBJECTIVE: The purpose of this study was to evaluate the effects of low-intensity pulsed ultrasound (LIPUS) on bone healing at osteotomy sites after open wedge high tibial osteotomy (OWHTO). MATERIALS AND METHODS: Twenty-six patients underwent OWHTO without bone grafting. Thirty cases treated with LIPUS (group L) after surgery were compared with 13 cases without LIPUS treatment (group C). We divided the osteotomy gap into the lateral hinge and 4 zones on anteroposterior radiography, and the progression of gap filling was evaluated at 1, 3, and 6 months post-operatively in both groups...
July 2017: Journal of Orthopaedic Trauma
https://www.readbyqxmd.com/read/28632664/outcome-of-low-intensity-pulsed-ultrasound-lipus-for-opening-wedge-high-tibial-osteotomy
#9
Ryusuke Saito, Tsuyoshi Nagase, Tomohiko Tateishi, Sadanori Shimizu, Takuya Kato, Teruhiko Nakagawa, Masamitsu Tsutiya
OBJECTIVE: Opening Wedge High Tibial Osteotomy (OWHTO) for knee osteoarthritis and for osteonecrosis has reported good results. Use of low intensity pulsed ultrasound (LIPUS) after OWHTO had become an option for the treatment of OWHTO since April 2016. The purpose of this study was to examine whether LIPUS has an accelerating effect on synostosis after OWHTO. MATERIALS AND METHODS: The control subjects were 24 patients with a total of 26 knees (9 male with knees and 15 female with 17 knees treated) treated with OWHTO only...
July 2017: Journal of Orthopaedic Trauma
https://www.readbyqxmd.com/read/28632663/an-examination-of-the-factors-related-to-a-reduction-in-the-use-of-low-intensity-pulsed-ultrasound-lipus
#10
Yoshiyasu Uchiyama, Takaaki Tateiwa, Daisuke Nakajima, Naoki Takatori, Masahiko Watanabe
OBJECTIVE: We examined the factors related to a reduction in the use of low-intensity pulsed ultrasound (LIPUS) for patients at both our hospital and other affiliated institutions. MATERIALS AND METHODS: Of 350 patients who used LIPUS at our and other affiliated institutions from May 2010 to April 2015, 279 (168 males, 111 females) were evaluated, after excluding mortalities and those with unexplained bone adhesion. Those patients with LIPUS compliance [calculated as: (number of days LIPUS was used/number of days LIPUS was available) × 100] below 80% were defined as the non-compliant group (170 patients), and those patients with a compliance rate of 80% or above were defined as the compliant group (109 patients)...
July 2017: Journal of Orthopaedic Trauma
https://www.readbyqxmd.com/read/28632662/treatment-of-incomplete-jones-fractures-with-low-intensity-pulsed-ultrasound-lipus
#11
Tateishi Tomohiko, Tsuyoshi Nagase, Teruhiko Nakagawa, Tsuchiya Masamitsu
OBJECTIVE: Stress fractures of the proximal epiphysis of the fifth metatarsal bone (termed Jones fracture) frequently occur in both senior high-school-age and older contestant-level soccer players, and its incidence in Japanese soccer players is higher than that in European players. Surgery is most commonly indicated for a complete fracture, and about 3 months are required before the patient is able to return to the sport. We have performed a "Jones fracture screening" to reduce the incidence of these fractures...
July 2017: Journal of Orthopaedic Trauma
https://www.readbyqxmd.com/read/28632661/efficacy-and-limitations-of-conservative-treatment-for-painful-patella-partita-positioning-of-an-ultrasound-accelerated-fracture-healing-apparatus
#12
Natsuki Sugimura, Daisuke Hirose, Koji Aso, Masashi Izumi, Yusuke Okanoue, Kazuo Kitaoka, Masahiko Ikeuchi
OBJECTIVE: Generally, painful patella partita is conservatively treated, but the usefulness of a low-intensity pulsed ultrasound (LIPUS) healing apparatus is unclear. The objective of this study was to investigate the usefulness of LIPUS for conservative treatment of painful patella partita. SUBJECTS AND METHODS: The subjects included 17 patients diagnosed with painful patella partita. The subjects were divided into 2 groups: those without pain at 6 months (responsive group) and those with pain that persisted for 6 months or longer (non-responsive group)...
July 2017: Journal of Orthopaedic Trauma
https://www.readbyqxmd.com/read/28632660/clinical-experience-with-the-use-of-low-intensity-pulsed-ultrasound-lipus-in-the-treatment-of-atypical-femoral-fractures
#13
Sang Yang Lee, Takahiro Niikura, Takashi Iwakura, Tomoaki Fukui, Ryosuke Kuroda
OBJECTIVE: The aim of this study was to report the clinical results of atypical femoral fractures (AFFs) treated with low-intensity pulsed ultrasound (LIPUS). MATERIALS AND METHODS: The data on AFFs that were surgically treated in our hospital from 2010 to 2016 was retrospectively analyzed. AFF was diagnosed based on the criteria defined by the second report of an ASBMR task force. RESULTS: Seven fractures in 6 cases were included in this study...
July 2017: Journal of Orthopaedic Trauma
https://www.readbyqxmd.com/read/28625958/pain-management-of-pancreatic-cancer-patients-with-high-intensity-focused-ultrasound-therapy
#14
Yulan Shi, Xiao Ying, Xiaoye Hu, Hong Shen
This study was performed to evaluate cancer pain control of high-Intensity focused ultrasound ablation (HIFU) and to manage the HIFU treatment pain in advanced pancreatic cancer patients with analgesics. We collected 71 locally advanced pancreatic cancer patients treated with HIFU from 2013 March to 2014 January in our hospital. The cancer pain (pre-HIFU and two weeks after HIFU) and HIFU treatment pain were evaluated respectively. The numeric rating scale (NRS) was used as the tool of pain evaluation. The related factors with pains were analyzed...
January 2017: Pakistan Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28624468/fish-mass-immunization-against-virus-with-recombinant-spiny-bacterins
#15
Julio Coll
Bacterins obtained from recombinant bacteria displaying heterologous antigens in its surface coded by prokaryotic rather than eukaryotic expression plasmids (here called "spiny" bacterins or spinycterins), have been used to increase fish immunogenicity of recombinant viral protein fragments. To explore their immunogenicity, five bacterial-specific membrane anchor-motifs characterized in the literature (Nmistic, Mistic, NTD, YAIN and YBEL) were genetically fused to the immunorelevant cystein-free 117 amino acid fragment II from the ORF149 of cyprinid herpes virus 3 (frgIICyHV3)...
June 15, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/28621452/osteogenic-commitment-and-differentiation-of-human-mesenchymal-stem-cells-by-low-intensity-pulsed-ultrasound-stimulation
#16
Viviana Costa, Valeria Carina, Simona Fontana, Angela De Luca, Francesca Monteleone, Stefania Pagani, Maria Sartori, Stefania Setti, Cesare Faldini, Riccardo Alessandro, Milena Fini, Gianluca Giavaresi
Low-intensity pulsed ultrasound (LIPUS) as an adjuvant therapy in in vitro and in vivo bone engineering has proven to be extremely useful. The present study aimed at investigating the effect of 30 mW/cm(2) LIPUS stimulation on commercially available human mesenchymal stem cells (hMSCs) cultured in basal or osteogenic medium at different experimental time points (7d, 14d, 21d). The hypothesis was that LIPUS would improve the osteogenic differentiation of hMSC and guarantying the maintenance of osteogenic committed fraction, as demonstrated by cell vitality and proteomic analysis...
June 16, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28620685/the-efficacy-of-a-new-high-intensity-focused-ultrasound-therapy-for-locally-advanced-pancreatic-cancer
#17
Jing Zhao, Fuguang Zhao, Yulan Shi, Yongchuan Deng, Xiaoye Hu, Hong Shen
PURPOSE: To compare the survival benefit and safety of the low power cumulative and traditional high intensity focused ultrasound (HIFU) for locally advanced pancreatic cancer. METHOD: We retrospectively analyzed 38 patients with locally advanced, inoperable, stage III pancreatic patients received HIFU treatment between January 2008 and April 2014 in the Department of Surgery, the Second Affiliated Hospital, Zhejiang University, School of Medicine. 11 of them received the low power cumulative HIFU treatment, while other 27 received the traditional HIFU treatment...
June 15, 2017: Journal of Cancer Research and Clinical Oncology
https://www.readbyqxmd.com/read/28618821/low-intensity-ultrasound-activates-vestibular-otolith-organs-through-acoustic-radiation-force
#18
M M Iversen, D A Christensen, D L Parker, H A Holman, J Chen, M J Frerck, R D Rabbitt
The present study examined the efficacy of 5 MHz low-intensity focused ultrasound (LiFU) as a stimulus to remotely activate inner ear vestibular otolith organs. The otolith organs are the primary sensory apparati responsible for detecting orientation of the head relative to gravity and linear acceleration in three-dimensional space. These organs also respond to loud sounds and vibration of the temporal bone. The oyster toadfish, Opsanus tau, was used to facilitate unobstructed acoustic access to the otolith organs in vivo...
June 2017: Journal of the Acoustical Society of America
https://www.readbyqxmd.com/read/28616987/impact-of-low-intensity-pulsed-ultrasound-on-transcript-and-metabolite-abundance-in-saccharomyces-cerevisiae
#19
Michael C Schultz, Jian Zhang, Xian Luo, Oleksandra Savchenko, Liang Li, Michael Deyholos, Jie Chen
The interactions of ultrasound with biological materials are exploited for diagnostic, interventional and therapeutic multiple applications in medicine and can improve biological productivity in industrial biotechnological applications, such as biofuel generation, vaccine and antibodies production. Accordingly, there is great interest in better understanding the biological effects of ultrasound. In this paper, we studied the impact of low-intensity pulsed ultrasound (LIPUS) on RNA expression and metabolism of S...
June 15, 2017: Journal of Proteome Research
https://www.readbyqxmd.com/read/28611677/greater-neural-adaptations-following-high-vs-low-load-resistance-training
#20
Nathaniel D M Jenkins, Amelia A Miramonti, Ethan C Hill, Cory M Smith, Kristen C Cochrane-Snyman, Terry J Housh, Joel T Cramer
We examined the neuromuscular adaptations following 3 and 6 weeks of 80 vs. 30% one repetition maximum (1RM) resistance training to failure in the leg extensors. Twenty-six men (age = 23.1 ± 4.7 years) were randomly assigned to a high- (80% 1RM; n = 13) or low-load (30% 1RM; n = 13) resistance training group and completed leg extension resistance training to failure 3 times per week for 6 weeks. Testing was completed at baseline, 3, and 6 weeks of training. During each testing session, ultrasound muscle thickness and echo intensity, 1RM strength, maximal voluntary isometric contraction (MVIC) strength, and contractile properties of the quadriceps femoris were measured...
2017: Frontiers in Physiology
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