keyword
MENU ▼
Read by QxMD icon Read
search

Low intensity ultrasound

keyword
https://www.readbyqxmd.com/read/29344739/what-we-have-learned-from-the-recent-meta-analyses-on-diagnostic-methods-for-atherosclerotic-plaque-regression
#1
REVIEW
Giuseppe Biondi-Zoccai, Simona Mastrangeli, Enrico Romagnoli, Mariangela Peruzzi, Giacomo Frati, Leonardo Roever, Arturo Giordano
PURPOSE OF REVIEW: Atherosclerosis has major morbidity and mortality implications globally. While it has often been considered an irreversible degenerative process, recent evidence provides compelling proof that atherosclerosis can be reversed. Plaque regression is however difficult to appraise and quantify, with competing diagnostic methods available. Given the potential of evidence synthesis to provide clinical guidance, we aimed to review recent meta-analyses on diagnostic methods for atherosclerotic plaque regression...
January 17, 2018: Current Atherosclerosis Reports
https://www.readbyqxmd.com/read/29307443/low-intensity-ultrasound-reduces-high-glucose-induced-nitric-oxide-generation-in-retinal-pigment-epithelial-cells
#2
Mrigendra Bir Karmacharya, Binika Hada, So Ra Park, Byung Hyune Choi
Diabetic retinopathy (DR) is a severe micro-vascular complication of diabetes. High glucose (HG)-evoked nitric oxide (NO) production mediated by increased oxidative stress is a key factor in DR pathogenesis. In this study, we examined whether low-intensity ultrasound (LIUS) stimulation can reduce HG-induced NO generation. We determined that LIUS stimulation decreased the HG-induced NO generation possibly via inhibition of reactive oxygen species (ROS) and subsequently diminished the associated pro-inflammatory pathway involving the induced expression of inducible nitric oxide synthase, cyclooxygenase-2 and vascular endothelial growth factor...
January 4, 2018: Ultrasound in Medicine & Biology
https://www.readbyqxmd.com/read/29299099/mature-cystic-teratoma-with-high-proportion-of-solid-thyroid-tissue-a-controversial-case-with-unusual-imaging-findings
#3
Rui Gil, Teresa Margarida Cunha, Ines Rolim
We describe a case of a mature cystic teratoma of the ovary with high proportion of solid thyroid tissue (< 50% of the entire tumor) in a childbearing woman. The patient presented with non-specific abdominal bloating. Pelvic ultrasound and magnetic resonance imaging revealed a complex cystic-solid tumor confined to the left ovary with an anterior fat-containing locus compatible with mature cystic teratoma and a posterior predominantly solid component with low signal intensity on T2-weighted images that was histopatologically diagnosed as benign thyroid tissue...
July 2017: Journal of Radiology Case Reports
https://www.readbyqxmd.com/read/29287471/conformation-stability-in-vitro-digestibility-and-allergenicity-of-tropomyosin-from-shrimp-exopalaemon-modestus-as-affected-by-high-intensity-ultrasound
#4
Ziye Zhang, Xiaofeng Zhang, Wei Chen, Peng Zhou
The effects of high intensity ultrasound (HIU) modification (power: 100-800 W, 15 min) on the conformation stability, in vitro digestibility and allergenicity of tropomyosin (TM) from Exopalaemon modestus were investigated. HIU treatment oxidized the Cys, Met and Lys in TM and degraded TM to generate protein fragments by HIU-induced free radicals. The α-helix content decreased, while β-sheet, β-turn and random coil increased. The immunoblotting and ELISA data suggested HIU treatment reduced the allergenicity and contributed to higher digestibility of TM...
April 15, 2018: Food Chemistry
https://www.readbyqxmd.com/read/29285645/analysis-of-ibuprofen-and-its-main-metabolites-in-roots-shoots-and-seeds-of-cowpea-vigna-unguiculata-l-walp-using-liquid-chromatography-quadrupole-time-of-flight-mass-spectrometry-uptake-metabolism-and-translocation
#5
Yolanda Picó, Rodrigo Alvarez-Ruiz, Leonard Wijaya, Ahmed Alfarhan, Mohammed Alyemeni, Damià Barceló
A liquid chromatography quadruple time-of-flight mass spectrometry (LC-QqTOF-MS/MS) method was developed for simultaneous quantitative analysis of ibuprofen (IBU), 1- and 2-hydroxyibuprofen (1-OH IBU and 2-OH IBU), and carboxyibuprofen (CBX IBU) while preserving the ability of the instrument to get precursor and product ion mass spectra of non-target compounds. The trigger was the precursor ions reaching 100 cps intensity. Sample preparation was carried out by ultrasound solid-liquid extraction with methanol as extraction solvent at pH < 2 followed by solid-phase extraction (SPE) clean-up using STRATA-X cartridges and methanol as an eluent...
December 29, 2017: Analytical and Bioanalytical Chemistry
https://www.readbyqxmd.com/read/29284881/postoperative-chylothorax-of-unclear-etiology-in-a-patient-with-right-sided-subclavian-central-venous-catheter-placement
#6
Samie Asghar, Faisal Shamim
A young male underwent decompressive craniotomy for an intracerebral bleed. A right-sided subclavian central venous catheter was placed in the operating room after induction of anesthesia. Postoperatively, he was shifted to Intensive Care Unit (ICU) for mechanical ventilation due to low Glasgow coma scale. He had an episode of severe agitation and straining on the tracheal tube in the evening same day. On the 2nd postoperative day in ICU, his airway pressures were high, and chest X-ray revealed massive pleural effusion on right side...
October 2017: Anesthesia, Essays and Researches
https://www.readbyqxmd.com/read/29283212/low-intensity-ultrasound-upregulates-the-expression-of-cyclin-d1-and-promotes-cellular-proliferation-in-human-mesenchymal-stem-cells
#7
Gaurav Budhiraja, Neety Sahu, Anuradha Subramanian
Human mesenchymal stem cells (hMSCs) hold great potential for cellular based therapeutics and tissue engineering applications and their expansion is an interesting prospect due to their low availability from in-vivo sources. Therefore, this study investigated the effect of continuous-wave low-intensity ultrasound (LIUS) at 5.0-MHz and 14.0-kPa (< 20 mW/cm2 ) on the proliferative capacity, colony-formation efficiency, genetic stability and differentiation potential of hMSCs. Additionally, potential signaling pathways involved in LIUS-mediated proliferation of hMSCs were studied...
December 28, 2017: Biotechnology Journal
https://www.readbyqxmd.com/read/29282853/contrast-enhanced-ultrasound-using-bolus-injections-of-contrast-agent-for-assessment-of-postprandial-microvascular-blood-volume-in-human-skeletal-muscle
#8
Kenneth H Mertz, Jacob Bülow, Lars Holm
Methods capable of measuring blood flow in a tissue-specific manner are needed. The purpose of this study was to investigate whether contrast-enhanced ultrasound (CEUS) using bolus injections of SonoVue® is an useful method for assessing postprandial changes in microvascular perfusion in the vastus lateralis muscle. Ten healthy, young subjects were recruited for this study. Six subjects participated in washout and reproducibility protocols to assess washout time of SonoVue® and the reproducibility of the method when measuring microvascular blood volume (MBV)...
December 27, 2017: Clinical Physiology and Functional Imaging
https://www.readbyqxmd.com/read/29273088/low-intensity-pulsed-ultrasound-prevents-muscle-atrophy-induced-by-type-1-diabetes-in-rats
#9
Liang Tang, Nan Li, Wenqi Jian, Yiting Kang, Bo Yin, Shuxin Sun, Jianzhong Guo, Lijun Sun, Dean Ta
BACKGROUND: Type 1 diabetes mellitus (T1DM) induces serious skeletal muscle atrophy. Low-intensity pulsed ultrasound (LIPUS) is a common treatment for skeletal muscle injury and is effective in accelerating the rate of muscle growth. However, to the best of our knowledge, whether LIPUS can improve skeletal muscle atrophy in type 1 diabetic rats has not been investigated. METHODS: The rats were randomly divided into four groups: the normal control group (NC); the sham-treated diabetic control group (DC); the diabetic, insulin-treated group (DI) as a positive control; and the diabetic LIPUS therapy group (DL)...
December 22, 2017: Skeletal Muscle
https://www.readbyqxmd.com/read/29258619/effects-of-low-intensity-pulsed-ultrasound-lipus-pretreated-human-amnion-derived-mesenchymal-stem-cell-had-msc-transplantation-on-primary-ovarian-insufficiency-in-rats
#10
Li Ling, Xiushan Feng, Tianqin Wei, Yan Wang, Yaping Wang, Wenqian Zhang, Lianli He, Ziling Wang, Qianru Zeng, Zhengai Xiong
BACKGROUND: Human amnion-derived mesenchymal stem cells (hAD-MSCs) have the features of mesenchymal stem cells (MSCs). Low-intensity pulsed ultrasound (LIPUS) can promote the expression of various growth factors and anti-inflammatory molecules that are necessary to keep the follicle growing and to reduce granulosa cell (GC) apoptosis in the ovary. This study aims to explore the effects of LIPUS-pretreated hAD-MSC transplantation on chemotherapy-induced primary ovarian insufficiency (POI) in rats...
December 19, 2017: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/29251009/ultrasound-measurement-of-fetal-adrenal-gland-in-fetuses-with-intrauterine-growth-restriction-an-early-predictive-method-for-adverse-outcomes
#11
Zohre Farzad Mohajeri, Soroush Aalipour, Mahdi Sheikh, Masoumeh Shafaat, Sedigheh Hantoushzadeh, Sedigheh Borna, Soghra Khazardoost
OBJECTIVES: Comparing the sonographic measurements of fetal adrenal gland in pregnancies with intrauterine growth restriction (IUGR) versus healthy controls and to assess whether the changes in adrenal gland measurements could predict adverse pregnancy outcomes in IUGR fetuses. METHODS: This prospective cohort study evaluated 97 pregnant women (48 with IUGR pregnancies and 49 healthy controls) during their third gestational trimester. All mothers underwent two dimensional ultrasonography of the fetal adrenal gland, and the fetal zone in transverse, sagittal, and coronal planes...
December 17, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/29237506/tgf-%C3%AE-1-induced-chondrogenesis-of-bone-marrow-mesenchymal-stem-cells-is-promoted-by-low-intensity-pulsed-ultrasound-through-the-integrin-mtor-signaling-pathway
#12
Peng Xia, Xiaoju Wang, Yanping Qu, Qiang Lin, Kai Cheng, Mingxia Gao, Shasha Ren, Tingting Zhang, Xueping Li
BACKGROUND: Low-intensity pulsed ultrasound (LIPUS) is a mechanical stimulus that plays a key role in regulating the differentiation of bone marrow mesenchymal stem cells (BMSCs). However, the way in which it affects the chondrogenic differentiation of BMSCs remains unknown. In this study, we aimed to investigate whether LIPUS is able to influence TGF-β1-induced chondrogenesis of BMSCs through the integrin-mechanistic target of the Rapamycin (mTOR) signaling pathway. METHODS: BMSCs were isolated from rat bone marrow and cultured in either standard or TGF-β1-treated culture medium...
December 13, 2017: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/29235453/potential-impact-of-thermal-effects-during-ultrasonic-neurostimulation-retrospective-numerical-estimation-of-temperature-elevation-in-seven-rodent-setups
#13
Charlotte Constans, Philippe Mateo, Mickael Tanter, Jean-Francois Aubry
In the past decade, a handful but growing number of groups have reported worldwide successful low intensity focused ultrasound induced neurostimulation trials on rodents with effects ranging from movement elicitations to reduction of anesthesia time or reduction of the duration of drug induced seizures. The mechanisms underlying ultrasonic neuromodulation are still not fully understood. Given the low intensities used in most of the studies, a mechanical effect is more likely to be responsible for the neuromodulation effect, but a clear description of the thermal and mechanical effects is necessary to optimize clinical applications...
December 13, 2017: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/29235438/acoustic-stimulation-can-induce-a-selective-neural-network-response-mediated-by-piezoelectric-nanoparticles
#14
Camilo Andres Rojas Cifuentes, Mariateresa Tedesco, Paolo Massobrio, Attilio Marino, Gianni Ciofani, Sergio Martinoia, Roberto Raiteri
OBJECTIVE: We aim at developing novel non-invasive or minimally invasive methods for neural stimulation to be applied in the study and treatment of brain (dys)functions and neurological disorders. APPROACH: We investigate the electrophysiological response of in vitro neuronal networks when subjected to low intensity pulsed acoustic stimulation mediated by piezoelectric nanoparticles adsorbed on the neuronal membrane. MAIN RESULTS: We show that the presence of piezoelectric barium titanate nanoparticles induces, in a reproducible way, an increase in the network activity when excited by stationary ultrasound waves in the MHz regime...
December 13, 2017: Journal of Neural Engineering
https://www.readbyqxmd.com/read/29228344/relationship-between-inter-rectus-distance-and-symptom-severity-in-women-with-diastasis-recti-in-the-early-postpartum-period
#15
Nadia Keshwani, Sunita Mathur, Linda McLean
Background: Diastasis recti abdominis (DrA) is associated with negative body image, musculoskeletal pain and dysfunction, and perhaps urogynecological complaints. The severity of DrA has traditionally been determined by measuring the inter-rectus distance (IRD); however, the relationship between IRD and symptoms in women with DrA is unclear. Objective: The objective of the study was to investigate the relationship between IRD and symptom severity in women with DrA in the early postpartum period...
December 4, 2017: Physical Therapy
https://www.readbyqxmd.com/read/29226740/do-infants-in-the-neonatal-intensive-care-unit-diagnosed-with-urinary-tract-infection-need-a-routine-voiding-cystourethrogram
#16
Dustin D Flannery, Erik Brandsma, Judy Saslow, Amy B Mackley, David A Paul, Zubair H Aghai
OBJECTIVE: To determine if infants diagnosed with urinary tract infection (UTI) in the neonatal intensive care unit (NICU) require a routine voiding cystourethrogram (VCUG). STUDY DESIGN: Retrospective data analysis from three centers for infants admitted to the NICU born between 2000 and 2013 and diagnosed with UTI. RESULTS: One hundred twenty-six infants from three centers were diagnosed with UTI during their hospitalization. Renal ultrasound (RUS) was performed in 115 infants (91...
December 10, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/29223469/oncological-and-functional-outcomes-of-elderly-men-treated-with-hifu-vs-minimally-invasive-radical-prostatectomy-a-propensity-score-analysis
#17
Paolo Capogrosso, Eric Barret, Rafael Sanchez-Salas, Igor Nunes-Silva, François Rozet, Marc Galiano, Eugenio Ventimiglia, Alberto Briganti, Andrea Salonia, Francesco Montorsi, Xavier Cathelineau
AIM: To assess outcomes of whole gland high-intensity focused ultrasound (HIFU) as compared with minimally-invasive radical prostatectomy (MIRP) in elderly patients. MATERIALS & METHODS: Patients aged ≥70 years with, cT1-cT2 disease, biopsy Gleason score (GS) 3 + 3 or 3 + 4 and preoperative PSA ≤10 ng/mL were submitted to either whole-gland HIFU or MIRP. Propensity-score matching analysis was performed to ensure the baseline equivalence of groups. Follow-up visits were routinely performed assessing PSA and urinary function according to the International Continence Score (ICS) and the International Prostatic Symptoms Score (IPSS) questionnaires...
December 1, 2017: European Journal of Surgical Oncology
https://www.readbyqxmd.com/read/29199330/-effect-of-low-intensity-pulsed-ultrasound-combined-with-triamcinolone-acetonide-on-oral-mucosal-ulcer-healing-in-syrian-hamster
#18
Tian-Ming Feng, Ming-Cong Yang, Lan-Lan Pan, Chen-Xi Fei, Chao Wang, Xue-Rong Xiang, Jun Sun
PURPOSE: To evaluate the effect of low-intensity pulsed ultrasound(LIPUS) combined with triamcinolone acetonide on oral mucosal ulcer in syrian hamster in several ways, including healing time, contents of superoxide dismutase(SOD)and malondialdehyde (MDA). METHODS: Sixty syrian hamsters were randomly divided into 5 groups, including a baseline group (containing a normal baseline group and a model baseline group, n=6) and 4 experimental groups (LIPUS processing and drug use group, LIPUS group, drug group and a normal control group without any processing, n=12)...
August 2017: Shanghai Kou Qiang Yi Xue, Shanghai Journal of Stomatology
https://www.readbyqxmd.com/read/29191696/modulating-effect-of-low-intensity-pulsed-ultrasound-on-the-phenotype-of-inflammatory-cells
#19
Evaldo Moreira da Silva Junior, Raquel Agnelli Mesquita-Ferrari, Cristiane Miranda França, Lucas Andreo, Sandra Kalil Bussadori, Kristianne Porta Santos Fernandes
AIMS: The purpose of this study was toclarify the effect of low intensity pulsed ultrasound (LIPUS) on the phenotype of the inflammatory infiltrate in muscle tissue following acute injury. MAIN METHODS: Forty Wistar rats were submitted to cryoinjury of the tibialis anterior muscle and only half were treated with LIPUS. After 1, 2, 3 and 7 days macrophages and neutrophils were quantified. KEY FINDINGS: With one day, LIPUS led to reductions in the number of neutrophils and M1 macrophages...
November 27, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29184110/differential-effects-on-membrane-permeability-and-viability-of-human-keratinocyte-cells-undergoing-very-low-intensity-megasonic-fields
#20
F Domenici, F Brasili, S Giantulli, B Cerroni, A Bedini, C Giliberti, R Palomba, I Silvestri, S Morrone, G Paradossi, M Mattei, F Bordi
Among different therapeutic applications of Ultrasound (US), transient membrane sonoporation (SP) - a temporary, non-lethal porosity, mechanically induced in cell membranes through US exposure - represents a compelling opportunity towards an efficient and safe drug delivery. Nevertheless, progresses in this field have been limited by an insufficient understanding of the potential cytotoxic effects of US related to the failure of the cellular repair and to the possible activation of inflammatory pathway. In this framework we studied the in vitro effects of very low-intensity US on a human keratinocyte cell line, which represents an ideal model system of skin protective barrier cells which are the first to be involved during medical US treatments...
November 28, 2017: Scientific Reports
keyword
keyword
27207
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"