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https://www.readbyqxmd.com/read/29770884/activated-carbon-fiber-filters-could-reduce-the-risk-of-surgical-smoke-exposure-during-laparoscopic-surgery-application-of-volatile-organic-compounds
#1
Seock Hwan Choi, Dong Hee Choi, Dong Hwa Kang, Yun-Sok Ha, Jun Nyung Lee, Bum Soo Kim, Hyun Tae Kim, Eun Sang Yoo, Tae Gyun Kwon, Sung Kwang Chung, Tae-Hwan Kim
BACKGROUND: Generation of smoke is inevitable during surgical procedures. Some volatile organic compounds (VOCs) in surgical smoke are known to be strong carcinogens. We used a prototype of a multi-layered complex filter in an attempt to eliminate VOCs. METHODS: From June 2015 to July 2015, 20 patients underwent transperitoneal laparoscopic nephrectomy for renal cell carcinoma. Smoke (pre-filter) was collected 20 min after the electrocautery device was first used during the surgery, by the direct collection method, with a 5-L Tedlar® gas-sampling bag...
May 16, 2018: Surgical Endoscopy
https://www.readbyqxmd.com/read/29676128/-quality-assessment-of-commercial-rosemary-based-on-liquid-gas-chromatography-and-mass-spectrography-with-multivariate-statistical-analysis
#2
Ji-Dan Zhang, Wei Guo, Yan Tang, Ai-Juan Shao, Bin Yang
A GC-MS fingerprint of rosemary oil and an UPLC fingerprint of non-volatile compounds of rosemary were established. Sixty-three kinds of volatile compounds and thirty-eight kinds of non-volatile compounds were identified tentatively using GC-MS and UPLC-Q-TOF-MS, respectively, and most of them are flavonoids, oxygenated monoterpenes, and diterpenoids, etc. According to multivariate data analysis, chemical differences existed among commercial rosemary samples, for example, the essential oil of imported rosemary sample belongs to Morocco/Tunisian type and the one of domestic sample belongs to Spanish type...
March 2018: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/29583016/preliminary-study-of-novafon-local-vibration-voice-therapy-for-dysphonia-treatment
#3
Ben Barsties V Latoszek
BACKGROUND: The objective of this study was to explore the effectiveness of a five-week Novafon local vibration voice therapy (NLVVT) program for dysphonia treatment. METHODS: Eleven dysphonic subjects participated in this specific program. RESULTS: Treatment effects were assessed during (i.e. weekly) and after NLVVT. Large and significant treatment effects were revealed in acoustics (i.e. spectrography), and multiparametric indices (i.e. Acoustic Voice Quality Index (AVQI), and Dysphonia Severity Index (DSI)) during and after NLVVT (all p values < ...
March 27, 2018: Logopedics, Phoniatrics, Vocology
https://www.readbyqxmd.com/read/29203432/cutibacterium-acnes-prosthetic-joint-infection-diagnosis-and-treatment
#4
REVIEW
P Boisrenoult
Cutibacterium acnes is a commensal skin bacterium, regularly implicated in prosthetic joint infection, particularly of the shoulder. Diagnosis has been improved by progress in bacteriological techniques: longer culture time, liquid medium culture, MALDI-TOF mass spectrography, and universal 16S rRNA PCR, associated by some authors to sonication of ablated implants. C. acnes pathogenicity involves many virulence factors, notably including biofilm formation. C. acnes may lead to infection that is clinically evident or, frequently, relatively asymptomatic...
February 2018: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/29169044/esculentoside-a-specifically-binds-to-ribosomal-protein-s3a-and-impairs-lps-induced-signaling-in-macrophages
#5
Ying-Hua Li, Jing Wang, Ying Liu, Lie Qiu, Jian-Zhong Li, Hong-Gang Hu, Zhen-Lin Hu, Wen Zhang, Bin Lu, Jun-Ping Zhang
Esculentoside A (EsA), a saponin isolated from Phytolacca esculenta, is reported as a potent suppressor of pro-inflammatory functions of macrophages. However, little is known about the target proteins of EsA for its anti-inflammatory activity. In the present study, to identify the intracellular target for EsA, affinity resins bearing immobilized EsA were used to capture binding proteins of EsA from RAW264.7 cell lysates. Mass spectrography and Western blot analysis of captured proteins indicated that ribosomal protein S3a preferentially bound to EsA affinity resin...
January 2018: International Immunopharmacology
https://www.readbyqxmd.com/read/28967443/advances-in-high-field-mri
#6
REVIEW
Adrien-Maxence Hespel, Robert C Cole
MRI techniques and systems have evolved dramatically over recent years. These advances include higher field strengths, new techniques, faster gradients, improved coil technology, and more robust sequence protocols. This article reviews the most commonly used advanced MRI techniques, including diffusion-weighted imaging, magnetic resonance spectrography, diffusion tensor imaging, and cerebrospinal fluid flow tracking.
January 2018: Veterinary Clinics of North America. Small Animal Practice
https://www.readbyqxmd.com/read/28965207/phoenixin-14-detection-and-novel-physiological-implications-in-cardiac-modulation-and-cardioprotection
#7
C Rocca, F Scavello, M C Granieri, T Pasqua, N Amodio, S Imbrogno, A Gattuso, R Mazza, Maria Carmela Cerra, Tommaso Angelone
Phoenixin-14 (PNX) is a newly identified peptide co-expressed in the hypothalamus with the anorexic and cardioactive Nesfatin-1. Like Nesfatin-1, PNX is able to cross the blood-brain barrier and this suggests a role in peripheral modulation. Preliminary mass spectrography data indicate that, in addition to the hypothalamus, PNX is present in the mammalian heart. This study aimed to quantify PNX expression in the rat heart, and to evaluate whether the peptide influences the myocardial function under basal condition and in the presence of ischemia/reperfusion (I/R)...
February 2018: Cellular and Molecular Life Sciences: CMLS
https://www.readbyqxmd.com/read/28846576/blood-and-tissue-silver-levels-following-application-of-silver-based-dressings-to-sulfur-mustard-chemical-burns
#8
David J Barillo, Claire R Croutch, Frances Reid, Tara Culley, William Sosna, Julie Roseman
Silver-based dressings are commonly used in burn care. Silver sulfadiazine use is associated with elevated blood, urine, and tissue levels of silver ion. We examined wound and tissue levels of silver ion in a two-species model of sulfur mustard chemical burn injury treated with two different silver-based dressings. Superficial dermal and moderate thickness dermal chemical burns were induced in 16 hairless guinea pigs and in 16 Gottingen minipigs by exposure to sulfur mustard vapor. After debridement, silver-nylon burn dressings or silver-calcium alginate dressings were applied and changed every 7 days until wound healing or a maximum of 60 days post exposure...
September 2017: Journal of Burn Care & Research: Official Publication of the American Burn Association
https://www.readbyqxmd.com/read/28502668/spectrographic-and-electroglottographic-findings-of-religious-vocal-performers-in-d%C3%A3-zce-province-of-turkey
#9
Sahin Saruhan, Ender Guclu, Ali Ertugrul
OBJECTIVES: In the present study, the register phenomenon and spectral characteristics of vocal styles used by vocal performers in a Muslim community were investigated. METHODS: Electroglottography was performed on 17 subjects, whereas spectrography was performed on 18 subjects, and 16 of these subjects participated in both parts of the study. RESULTS: We observed that the participants used chest register in voice production and there was no change in this situation related to the increase in frequency...
January 2018: Journal of Voice: Official Journal of the Voice Foundation
https://www.readbyqxmd.com/read/28379106/detectable-voice-change-with-the-edrophonium-test-in-laryngeal-myasthenia-gravis
#10
Koichi Tsunoda, Yoko Fujimaki, Yoko Morita
A case of laryngeal myasthenia gravis in a 65-year-old woman presenting with hoarseness as the sole symptom is reported. Voice spectrography was performed before and after injection of intravenous edrophonium. There was a marked improvement in the patient's voice after the administration of edrophonium, which was confirmed by the changes seen on the sound spectrogram. This was the only objective indication of a diagnosis of myasthenia gravis. No thymoma was seen on chest X-ray and the patient was negative for anti-acetylcholine receptor antibodies...
October 2017: Journal of International Medical Research
https://www.readbyqxmd.com/read/28216902/feeble-antipyretic-analgesic-and-anti-inflammatory-activities-were-found-with-regular-dose-4-o-%C3%AE-d-glucosyl-5-o-methylvisamminol-one-of-the-conventional-marker-compounds-for-quality-evaluation-of-radix-saposhnikoviae
#11
Jing-Ming Yang, Hua Jiang, Hong-Liang Dai, Zi-Wei Wang, Gui-Zhi Jia, Xiang-Cai Meng
INTRODUCTION: 4'-O-β-D-glucosyl-5-O-methylvisamminol (GML) is a conventional marker compound for quality control of Radix Saposhnikoviae. Despite that, neither pharmacodynamic or pharmacokinetic information is available with regard to GML. As such, the aim of thisstudy was to assess the conventional evaluation indices for the quality of Radix Saposhnikoviae. MATERIALS AND METHODS: Pyretic animal model, hot plate test, and ear edema model were established to evaluate and compare the antipyretic, analgesic, and anti-inflammatory effect of the chromone derivativescimifugin, prime-O-glucosylcimifugin (PGCN), and GML in Radix Saposhnikoviae...
January 2017: Pharmacognosy Magazine
https://www.readbyqxmd.com/read/28043299/-mechanism-of-protective-effects-of-tumor-necrosis-factor-receptor-associated-protein-1-on-hypoxic-cardiomyocytes-of-rats
#12
F Xiang, D X Zhang, S Y Ma, Y S Huang
Objective: To investigate the mechanism of protective effects of tumor necrosis factor receptor associated protein 1 (TRAP1) on hypoxic cardiomyocytes of rats. Methods: Primary cultured cardiomyocytes were obtained from neonatal Sprague-Dawley rats (aged 1 to 3 days) and then used in the following experiments. (1) Cells were divided into group TRAP1 and control group according to the random number table (the same grouping method below), and then the total protein of cells was extracted. Total protein of cells in group TRAP1 was added with mouse anti-rat TRAP1 monoclonal antibody, while that in control group was added with the same type of IgG from mouse...
December 20, 2016: Zhonghua Shao Shang za Zhi, Zhonghua Shaoshang Zazhi, Chinese Journal of Burns
https://www.readbyqxmd.com/read/27866691/vocal-parameters-and-self-perception-in-individuals-with-adductor-spasmodic-dysphonia
#13
Gleidy Vannesa E Rojas, Hilton Ricz, Vitor Tumas, Guilherme R Rodrigues, Patrícia Toscano, Lílian Aguiar-Ricz
OBJECTIVE: The study aimed to compare and correlate perceptual-auditory analysis of vocal parameters and self-perception in individuals with adductor spasmodic dysphonia before and after the application of botulinum toxin. STUDY DESIGN: This is a prospective cohort study. METHODS: Sixteen individuals with a diagnosis of adductor spasmodic dysphonia were submitted to the application of botulinum toxin in the thyroarytenoid muscle, to the recording of a voice signal, and to the Voice Handicap Index (VHI) questionnaire before the application and at two time points after application...
May 2017: Journal of Voice: Official Journal of the Voice Foundation
https://www.readbyqxmd.com/read/27441296/synthesis-of-polycarbonate-urethane-elastomers-and-effects-of-the-chemical-structures-on-their-thermal-mechanical-and-biocompatibility-properties
#14
Rong Zhu, Yiyu Wang, Zongrui Zhang, Daiwei Ma, Xinyu Wang
In this study, to obtain biomedical polyurethane elastomers with good mechanical properties and biocompatibility, a series of polycarbonate urethanes were synthesized via a two-step solution of polymerization method using the poly(1,6-hexanediol)carbonate diols (PCDL) as the soft segment, 4,4'-methylenebis(cyclohexyl isocyanate) (H12MDI), 1,6-hexamethylene diisocyanate (HDI) and 1,4-butanediol (BDO) as the hard segment with dibutyltin dilaurate as the catalyst. In this article, we illustrated the physical behaviors were obviously influenced by synthetic routes...
June 2016: Heliyon
https://www.readbyqxmd.com/read/27363256/when-pitch-accents-encode-speaker-commitment-evidence-from-french-intonation
#15
Amandine Michelas, Cristel Portes, Maud Champagne-Lavau
Recent studies on a variety of languages have shown that a speaker's commitment to the propositional content of his or her utterance can be encoded, among other strategies, by pitch accent types. Since prior research mainly relied on lexical-stress languages, our understanding of how speakers of a non-lexical-stress language encode speaker commitment is limited. This paper explores the contribution of the last pitch accent of an intonation phrase to convey speaker commitment in French, a language that has stress at the phrasal level as well as a restricted set of pitch accents...
June 2016: Language and Speech
https://www.readbyqxmd.com/read/27363253/the-time-course-for-processing-vowels-and-lexical-tones-reading-aloud-thai-words
#16
Chris Davis, Colin Schoknecht, Jeesun Kim, Denis Burnham
Three naming aloud experiments and a lexical decision (LD) experiment used masked priming to index the processing of written Thai vowels and tones. Thai allows for manipulation of the mapping between orthography and phonology not possible in other orthographies, for example, the use of consonants, vowels and tone markers in both horizontal and vertical orthographic positions (HOPs and VOPs). Experiment I showed that changing a vowel between prime and target slowed down target naming but changing a tone mark did not...
June 2016: Language and Speech
https://www.readbyqxmd.com/read/27363252/the-status-of-the-initial-rise-as-a-marker-of-focus-in-french
#17
James Sneed German, Mariapaola D'Imperio
This study addresses the relationship between information structure and intonation in French. Using an interactive speech production experiment, it tests the hypothesis that the French initial rise (LHi) is used to mark the left edge of a contrastively focused constituent. Since the occurrence of the initial rise is also known to be sensitive to the length of an Accentual Phrase (AP), AP length was manipulated within the same experiment in a 2 x 2 design. This made it possible to explore the issue of whether the initial rise represents a true marker of focus in the traditional sense, or whether the association is less direct...
June 2016: Language and Speech
https://www.readbyqxmd.com/read/27317933/the-part-of-a-long-beta-hairpin-from-the-scrapie-form-of-the-human-prion-protein-is-reconstructed-in-the-synthetic-cc36-protein
#18
Vladislav Victorovich Khrustalev, Tatyana Aleksandrovna Khrustaleva, Kamil Szpotkowski, Victor Vitoldovich Poboinev, Katsiaryna Yurieuna Kakhanouskaya
Mechanisms of beta sheet formation by the human prion protein are not clear yet. In this work, we clarified the role of the region containing C-half of the second helix and N-half of the third helix of that protein in the process of alpha helix to beta sheet transition. Solid phase automatic synthesis of the original peptide (CC36: Cys179-Cys214) failed because of the beta hairpin formation in the region 206-MERVVEQMC-214 with a high beta strand potential. Using Met206Arg and Val210Arg substitutions, we increased the probability of alpha helix formation by that sequence...
October 2016: Proteins
https://www.readbyqxmd.com/read/27183375/advanced-uses-of-pulse-oximetry-for-monitoring-mechanically-ventilated-patients
#19
REVIEW
Gerardo Tusman, Stephan H Bohm, Fernando Suarez-Sipmann
Pulse oximetry is an undisputable standard of care in clinical monitoring. It combines a spectrometer to detect hypoxemia with a plethysmograph for the diagnosis, monitoring, and follow-up of cardiovascular diseases. These pulse oximetry capabilities are extremely useful for assessing the respiratory and circulatory status and for monitoring of mechanically ventilated patients. On the one hand, the key spectrography-derived function of pulse oximetry is to evaluate a patient's gas exchange that results from a particular ventilatory treatment by continuously and noninvasively measuring arterial hemoglobin saturation (SpO2)...
January 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/27152341/a-broadband-chip-scale-optical-frequency-synthesizer-at-2-7-%C3%A3-10-16-relative-uncertainty
#20
Shu-Wei Huang, Jinghui Yang, Mingbin Yu, Bart H McGuyer, Dim-Lee Kwong, Tanya Zelevinsky, Chee Wei Wong
Optical frequency combs-coherent light sources that connect optical frequencies with microwave oscillations-have become the enabling tool for precision spectroscopy, optical clockwork, and attosecond physics over the past decades. Current benchmark systems are self-referenced femtosecond mode-locked lasers, but Kerr nonlinear dynamics in high-Q solid-state microresonators has recently demonstrated promising features as alternative platforms. The advance not only fosters studies of chip-scale frequency metrology but also extends the realm of optical frequency combs...
April 2016: Science Advances
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