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https://www.readbyqxmd.com/read/28546603/microleakage-around-class-v-composite-restorations-after-ultrasonic-scaling-and-sonic-toothbrushing-around-their-margin
#1
(no author information available yet)
The investigators suggest handscaling should be carried out in proximity to cervical resin composite restorations.
May 26, 2017: British Dental Journal
https://www.readbyqxmd.com/read/28545987/echography-of-clinically-relevant-disorders-in-the-genital-tract-of-female-dromedary-camels
#2
Ahmed Ali, Derar Derar, Ali Alsamri, Fahd Al Sobayil
The aim of this study was to characterize the clinically relevant genital tract disorders of dromedary camels. Reproductive tract examinations were performed via transrectal palpation, ultrasonography and vaginal exploration. The ultrasonic appearance of the reproductive pathology was described and compared with its morphology at laparotomy, after surgical removal, during postmortem examination or upon slaughter. Diagnosis was also confirmed by histopathology. The most frequently encountered follicular structures were larger than typical follicles (56/338, 16...
May 19, 2017: Animal Reproduction Science
https://www.readbyqxmd.com/read/28544201/influence-of-highly-porous-electrospun-plga-pcl-nha-fibrous-scaffolds-on-the-differentiation-of-tooth-bud-cells-in-vitro
#3
Xinjie Cai, Sofie Ten Hoopen, Weibo Zhang, Charles Yi, Wanxun Yang, Fang Yang, John A Jansen, X Frank Walboomers, Pamela C Yelick
In this study, we investigated the use of three-dimensional electrospun poly(lactic-co-glycolic acid)/poly(ε-caprolactone) (PLGA/PCL) scaffolds seeded and cultured with postnatal dental cells, for improved dental tissue regeneration. Wet-electrospinning combined with ultrasonic treatment was studied as a method to enhance scaffold porosity and to promote cell-cell interactions. We also investigated whether nano-hydroxyapatite (nHA) incorporation could enhance dental cell differentiation. All scaffolds were seeded with human tooth pulp-derived dental mesenchymal (hDM) cells, or a combination of hDM and pig dental epithelial (pDE) cells, cultured for up to 28 days...
May 24, 2017: Journal of Biomedical Materials Research. Part A
https://www.readbyqxmd.com/read/28543092/effect-of-ultrasonic-and-sonic-activation-of-root-canal-sealers-on-the-push-out-bond-strength-and-interfacial-adaptation-to-root-canal-dentine
#4
P E B Wiesse, R D Pereira, Y C T Silva-Sousa, C Estrela, M D Sousa-Neto, J D Pécora
AIM: To evaluate the effect of ultrasonic and sonic activation of two root canal sealers on interfacial adaptation and push-out bond strength (BS) to root canal dentine. METHODOLOGY: The root canals of seventy-eight roots of maxillary canines was prepared with Ni-Ti rotary instruments under irrigation with 2.5% NaOCl and 17% EDTA. Canals were filled by lateral condensation of gutta-percha and AH Plus (n=39) or MTA Fillapex (n=39). Three subgroups (n=13) were formed according to sealer activation: no activation (NA), sonic activation (SA, 20 s) and ultrasonic activation (US, 20 s)...
May 22, 2017: International Endodontic Journal
https://www.readbyqxmd.com/read/28541677/binary-solvent-extraction-of-tocols-%C3%AE-oryzanol-and-ferulic-acid-from-rice-bran-using-alkaline-treatment-combined-with-ultrasonication
#5
Hoa Thi Truong, Phuong Duc Luu, Kiyoshi Imamura, Norimichi Takenaka, Takeo Matsubara, Hideki Takahashi, Boi Van Luu, Yasuaki Maeda
Alkaline treatment (Alk) combined with ultrasound-assisted extraction (UAE) (Alk+UAE) was examined as a means of extracting tocols and γ-oryzanol from rice bran into an organic phase while simultaneously recovering ferulic acid into an aqueous phase. The tocols and -oryzanol/ferulic acid yields were determined using high-performance liquid chromatography with fluorescence and UV detection. The effects of extraction conditions were evaluated by varying the Alk treatment temperature and extraction duration...
May 25, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28541268/scrotal-ultrasonic-features-of-congenital-bilateral-absence-of-vas-deferens
#6
Jun Liu, Zhiqian Wang, MingYang Zhou, Min Li, Weiwei Zhan
OBJECTIVE: This article discusses scrotal ultrasonic features of patients with a congenital bilateral absence of the vas deferens (CBAVD). METHODS: Thirty-six patients with CBAVD were examined to obtain image characteristics of the bilateral testicle and epididymis by ultrasound. Each patient received a pathological examination of the sperm by percutaneous epididymal biopsy. RESULTS: Scrotal ultrasonic features were as follows: (1) testicular volumes were normal in all the 36 patients; (2) 21% (15/72) of the heads of epididymis, 67% (48/72) of the heads and bodies of epididymis, and 12% (9/72) of the heads, bodies, and tails of epididymis could be shown in the 72 epididymides of the 36 patients; (3) cystic or tubular dilation of the epididymis was obvious in all 72 abnormal epididymides; and (4) bilateral vas deferens could not be found in these patients...
June 2017: Ultrasound Quarterly
https://www.readbyqxmd.com/read/28540778/ex-vivo-optimisation-of-a-heterogeneous-speed-of-sound-model-of-the-human-skull-for-non-invasive-transcranial-focused-ultrasound-at-1%C3%A2-mhz
#7
L Marsac, D Chauvet, R La Greca, A-L Boch, K Chaumoitre, M Tanter, J-F Aubry
Transcranial brain therapy has recently emerged as a non-invasive strategy for the treatment of various neurological diseases, such as essential tremor or neurogenic pain. However, treatments require millimetre-scale accuracy. The use of high frequencies (typically ≥1 MHz) decreases the ultrasonic wavelength to the millimetre scale, thereby increasing the clinical accuracy and lowering the probability of cavitation, which improves the safety of the technique compared with the use of low-frequency devices that operate at 220 kHz...
March 7, 2017: International Journal of Hyperthermia
https://www.readbyqxmd.com/read/28540004/the-association-of-central-corneal-thickness-with-ocular-and-general-parameters-in-a-community-setting-the-yazd-eye-study
#8
Reza Soleimanizad, Mohammad Hosein Nowroozzadeh, Hossein Ziaei, Mohammad Pakravan, Mehdi Yaseri, Marzieh Katibeh
PURPOSE: To assess central corneal thickness (CCT) and its associations in an adult Iranian population. METHODS: This was a population-based cross-sectional study of adults aged 40-80 years. Eyes with corneal disorders, previous ocular surgery, or trauma were excluded. All subjects underwent complete ophthalmic examination, general health assessment, laboratory tests, and a detailed interview. CCT was measured with an ultrasonic pachymeter. Intraocular pressure (IOP) was measured with Goldmann applanation tonometry...
April 2017: Journal of Ophthalmic & Vision Research
https://www.readbyqxmd.com/read/28538364/thalidomide-results-in-diminished-ovarian-reserve-in-reproductive-age-female-ibd-patients
#9
Xiang Peng, Min Zhi, Ming Wei, Ting-Ting Li, Min Zhang, Yuan-Qi Zhang, Huan He, Mingli Su, Wei Wang, Jun-Rong Chen, Jian Tang, Xiang Gao, Pin-Jin Hu, Xiao-Yan Liang
The effectiveness of thalidomide in treating inflammatory bowel disease (IBD) has been widely recognized. Meanwhile, many serious adverse drug reactions have been observed, but no know reports on ovarian reserve function.Female patients, ranging in age between 18 and 40, were referred to our institution to undergo sex hormone detection and ultrasonic scanning for ovarian function assessment, between February 1, 2016 and September 31, 2016.Thirty-three patients treated with thalidomide (group A), 73 patients without thalidomide (group B), and 78 healthy women as control were studied...
May 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28538071/bone-scrapers-versus-piezoelectric-surgery-in-the-lateral-antrostomy-for-sinus-floor-elevation
#10
Claudio Stacchi, Teresa Lombardi, Paolo Cusimano, Federico Berton, Floriana Lauritano, Gabriele Cervino, Roberto Di Lenarda, Marco Cicciù
The purpose of this investigation is to evaluate 2 different methods for reducing cortical wall thickness in sinus floor augmentation surgery. A manual bone scraper was compared in terms of efficacy, speed, and safety to an ultrasonic insert for osteoplasty, in a randomized controlled clinical trial with a split-mouth design. Twenty-five patients with severe posterior maxillary atrophy were treated with bilateral sinus floor elevation with lateral approach. Antrostomies were randomly performed by eroding the cortical wall with a manual bone scraper (test site) or with an ultrasonic insert (control site) until the membrane was visible under a thin layer of bone, before outlining the window with a piezoelectric device...
May 19, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28537452/safety-and-effectiveness-of-longer-focal-beam-and-burst-duration-in-ultrasonic-propulsion-for-repositioning-urinary-stones-and-fragments
#11
Karmon Janssen, Timothy C Brand, Bryan W Cunitz, Yak-Nam Wang, Julianna Simon, Frank Starr, H Denny Liggitt, Jeff Thiel, Mathew D Sorensen, Jonathan D Harper, Michael R Bailey, Barbrina Dunmire
PURPOSE: In the first-in-human trial of ultrasonic propulsion, subjects passed collections of residual stone fragments repositioned with a C5-2 probe. Here, effectiveness and safety in moving multiple fragments is compared between the C5-2 and a custom (SC-50) probe that produces a longer focal beam and burst duration. MATERIAL AND METHODS: Effectiveness was quantified by the number of stones expelled from a calyx phantom consisting of a 30-mm deep, water-filled well in a block of tissue mimicking material...
May 24, 2017: Journal of Endourology
https://www.readbyqxmd.com/read/28537042/safety-and-efficacy-of-percutaneous-nephrolithotomy-in-patients-with-severe-skeletal-deformities
#12
Seyed Habibollah Mousavi-Bahar, Shahriar Amirhasani, Maede Mohseni, Rezgar Daneshdoost
PURPOSE: Treatment of renal calculi in patients with severe skeletal deformities can be challenging. We present our experience in order to provide an assessment of technical difficulties, associated complications, and outcomes of percutaneous nephrolithotomy (PCNL) as a treatment option in this special patient group. MATERIALS AND METHODS: Our study included eight patients treated with PCNL for renal stones. All had severe skeletal deformities including six with severe kyphoscoliosis, one with osteogenesis imperfecta, and another withrickets...
May 23, 2017: Urology Journal
https://www.readbyqxmd.com/read/28536790/a-chemometric-assisted-lc-ms-ms-method-for-the-simultaneous-determination-of-17-limonoids-from-different-parts-of-xylocarpus-granatum-fruit
#13
Xiaowei Shi, Yibing Wu, Tao Lv, Yufang Wang, Yan Fu, Mengmeng Sun, Qingwen Shi, Changhong Huo, Qiao Wang, Yucheng Gu
The marine mangrove Xylocarpus granatum is used as a folk medicine and is rich in bioactive limonoids. The quantitative determination of the chemical composition and distribution of limonoids in different parts of X. granatum fruit (fruit peel, seed coat, seed kernels, seed, and fruit) is significant for authentication and quality control purposes. However, the quantitative determination of limonoids in X. granatum has not yet been reported. In this study, a chemometric-assisted liquid chromatography-tandem mass spectrometry (LC-MS/MS) method was developed and validated for the simultaneous determination of 17 limonoids to reveal the chemical composition and distribution in different parts of X...
May 23, 2017: Analytical and Bioanalytical Chemistry
https://www.readbyqxmd.com/read/28536023/development-of-long-circulating-docetaxel-loaded-poly-3-hydroxybutyrate-co-3-hydroxyvalerate-nanoparticles-optimization-pharmacokinetic-cytotoxicity-and-in-vivo-assessments
#14
Harsh Vardhan, Pooja Mittal, Sandeep K Reddy Adena, Mansi Upadhyay, Brahmeshwar Mishra
Long-circulating Nanoparticles (NPs) are promising drug delivery vehicles which target solid tumors via enhanced permeation and retention effect. Plackett-Burman (PBD) and Box-Behnken (BBD) designs were adopted to study the effects of factors viz. polymer concentration, surfactant concentration, homogenizer speed, homogenization time and ultrasonication time on responses. A graphical and numerical optimization technique was used to obtain predicted value of the response. The drug entrapment efficiency was approximately 39±0...
May 20, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28536018/physicochemical-and-functional-properties-of-ultrasonic-treated-tragacanth-hydrogels-cross-linked-to-lysozyme
#15
Roya Koshani, Mahmoud Aminlari
The purpose of this study was to prepare, characterize and investigate physiochemical and functional attributes of hen egg white lysozyme (LZM) cross-linked with ultrasonic-treated tragacanth (US-treated TGC) under mild Maillard reactions conditions. FT-IR spectroscopy together with OPA assay revealed that covalent attachment of LZM with TCG's. Under optimum condition (pH=8.5, 60°C, RH=79%, 8 days), only one of the free amino group of LZM was blocked by TGC whereas under the same condition, US treated-TGC's blocked about three amino groups...
May 20, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28535866/comparing-phlebotomy-by-tail-tip-amputation-facial-vein-puncture-and-tail-vein-incision-in-c57bl-6-mice-by-using-physiologic-and-behavioral-metrics-of-pain-and-distress
#16
Elizabeth S Moore, Thomas A Cleland, Wendy O Williams, Christine M Peterson, Bhupinder Singh, Teresa L Southard, Bret Pasch, Rachael N Labitt, Erin K Daugherity
Tail tip amputation with minimal restraint is not widely used for mouse phlebotomy. In part, this infrequency may reflect policies influenced by tail tip amputation procedures for genotyping, which involve greater handling and tissue removal. To assess tail tip amputation with minimal restraint as a phlebotomy technique, we compared it with 2 more common methods: scruffing with facial vein puncture and lateral tail vein incision with minimal restraint. Blood glucose levels, audible and ultrasonic vocalizations, postphlebotomy activity and grooming behavior, open field and elevated plus maze behaviors, nest-building scores, and histologic changes at the phlebotomy site were evaluated...
May 1, 2017: Journal of the American Association for Laboratory Animal Science: JAALAS
https://www.readbyqxmd.com/read/28535030/sulfonated-holey-graphene-oxide-shgo-filled-sulfonated-poly-ether-ether-ketone-membrane-the-role-of-holes-in-the-shgo-in-improving-its-performance-as-proton-exchange-membrane-for-direct-methanol-fuel-cells
#17
Zhong-Jie Jiang, Zhongqing Jiang, Xiaoning Na Tian, Lijuan Luo, Meilin Liu
Sulfonated holey graphene oxides (SHGOs) have synthesized by the etching of sulfonated graphene oxides with concentrated HNO3 under the assistance of ultrasonication. These SHGOs could be used as the fillers for the sulfonated aromatic poly(ether ether ketone) (SPEEK) membrane. The obtained SHGO incorporated SPEEK membrane has a uniform and dense structure, exhibiting the higher performance as proton exchange membranes (PEMs), for instance, higher proton conductivity, lower activation energy for proton conduction, and comparable methanol permeability, as compared to Nafion® 112...
May 23, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28532082/ultrasonic-nanotherapy-of-breast-cancer-using-novel-ultrasound-responsive-alginate-shelled-perfluorohexane-nanodroplets-in-vitro-and-in-vivo-evaluation
#18
Fatemeh Baghbani, Mahdieh Chegeni, Fathollah Moztarzadeh, Jamshid Aghazadeh Mohandesi, Manijhe Mokhtari-Dizaji
Development of a new class of multifunctional ultrasound-responsive smart nanocarriers that combine therapeutic properties with diagnostic imaging has gained great attention in recent years. Here, we describe the results of ultrasonic nanotherapy of breast cancer using novel alginate-stabilized perfluorohexane nanodroplets. Doxorubicin (Dox)-loaded multifunctional nanodroplets (Dox-NDs) were synthesized via nanoemulsion process and evaluated in vitro and in vivo with focus on cytotoxicity, hemolytic activity, biodistribution, biosafety, and antitumor activity...
August 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28532078/enhancement-of-fibroblast-growing-on-the-mannosylated-surface-of-cellulose-membranes
#19
Simone Birkheur, Paula Cristina de Sousa Faria-Tischer, Cesar A Tischer, Elisângela Flávia Pimentel, Marcio Fronza, Denise Coutinho Endringer, Anna Paola Butera, Renato Márcio Ribeiro-Viana
Bacterial cellulose membrane is a biomaterial with high value in the biomedical field. Many groups have been making efforts to promote chemical modifications of its structure and, consequently, add new characteristics. Recently, our group has developed a methodology to insert monoester succinic acid in bacterial cellulose membrane without disrupting the microfibril network and bind a protein on it. Considering the role of carbohydrates in the molecular recognition process in biological events, we continued these studies by inserting covalently multiples copies of aryl monosaccharide to bacterial cellulose succinylated and to study the in vitro tissue compatibility using fibroblasts...
August 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28532033/synthesis-of-nano-sized-timolol-imprinted-polymer-via-ultrasonication-assisted-suspension-polymerization-in-silicon-oil-and-its-use-for-the-fabrication-of-timolol-voltammetric-sensor
#20
Taher Alizadeh, Mohammad Reza Ganjali, Faride Rafiei, Maedeh Akhoundian
A novel timolol voltammetric sensor based on the nano-sized molecularly imprinted polymer (nano-MIP)-modified carbon paste electrode was introduced. Timolol-imprinted polymers (MIP) were synthesized by the ultrasonic assisted suspension polymerization in silicon oil. The MIP nanoparticles were then embedded in a carbon paste (CP) electrode in order to prepare the nano-MIP-CP electrode. Timolol was extracted in the electrode for a definite time and then it was analyzed by square wave voltammetry, found to be an effective determination method...
August 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
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