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https://www.readbyqxmd.com/read/29165906/noninvasive-high-speed-near-infrared-imaging-of-the-biomolecular-distribution-and-molecular-mechanism-of-embryonic-development-in-fertilized-fish-eggs
#1
Mika Ishigaki, Takashi Nishii, Paralee Puangchit, Yui Yasui, Christian W Huck, Yukihiro Ozaki
In the present study, the distribution of biomaterials and its molecular mechanism of embryonic development in Japanese medaka fish were analyzed nondestructively and noninvasively without staining using near-infrared (NIR) imaging. The microscope NIR imaging system used in this research was a device capable of ultra-high-speed imaging; using this system, one can acquire microscopic imaging data in a few seconds. Therefore, the medaka eggs remained alive throughout measurements and were successfully monitored in vivo...
November 22, 2017: Journal of Biophotonics
https://www.readbyqxmd.com/read/29164881/monitoring-local-strain-vector-in-atomic-layered-mose2-by-second-harmonic-generation
#2
Jing Liang, Jin Zhang, Zhenzhu Li, Hao Hong, Jinhuan Wang, Zhihong Zhang, Xu Zhou, Ruixi Qiao, Jiyu Xu, Peng Gao, Zhirong Liu, Zhongfan Liu, Zhipei Sun, Sheng Meng, Kaihui Liu, Dapeng Yu
Strain serves as a powerful freedom to effectively, reversibly, and continuously engineer the physical and chemical properties of two-dimensional (2D) materials, such as bandgap, phase diagram, and reaction activity. Although there is a high demand for full characterization of the strain vector at local points, it is still very challenging to measure the local strain amplitude and its direction. Here, we report a novel approach to monitor the local strain vector in 2D molybdenum diselenide (MoSe2) by polarization-dependent optical second-harmonic generation (SHG)...
November 22, 2017: Nano Letters
https://www.readbyqxmd.com/read/29164773/recent-advances-in-flexible-stretchable-supercapacitors-for-wearable-electronics
#3
REVIEW
La Li, Zheng Lou, Di Chen, Kai Jiang, Wei Han, Guozhen Shen
The popularization of personalized wearable devices has accelerated the development of flexible/stretchable supercapacitors (SCs) that possess remarkable features of miniaturization, high security, and easy integration to build an all-in-one integrated system, and realize the functions of comfortable, noninvasive and continuous health monitoring, motion records, and information acquisition, etc. This Review presents a brief phylogeny of flexible/stretchable SCs, represented by planar micro-supercapacitors (MSCs) and 1D fibrous SCs...
November 22, 2017: Small
https://www.readbyqxmd.com/read/29157051/cerebral-nirs-patterns-in-late-preterm-and-very-preterm-infants-becoming-late-preterm
#4
Alice Grometto, Benedetta Pizzo, Maria Chiara Strozzi, Francesca Gazzolo, Diego Gazzolo
BACKGROUND: Near Infrared Spectroscopy (NIRS) has been proposed as a useful, noninvasive monitoring technique providing reliable information about central nervous system (CNS) oximetry and function. Recently, brain damage has been reconsidered as a dynamic process evolving over the weeks of gestation. We therefore investigated NIRS cerebral pattern differences between healthy late preterm infants (LPTo) and very preterm infants becoming late preterm (LPT). METHODS: We conducted an observational study in 40 healthy late preterm infants, matched for gestational age at monitoring, of whom 20 where LPTo and 20 LPT...
November 20, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/29153151/what-is-the-best-st-segment-recovery-parameter-to-predict-clinical-outcome-and-myocardial-infarct-size-amplitude-speed-and-completeness-of-st-segment-recovery-after-primary-percutaneous-coronary-intervention-for-st-segment-elevation-myocardial-infarction
#5
Wichert J Kuijt, Cindy L Green, Niels J W Verouden, Joost D E Haeck, Dan Tzivoni, Karel T Koch, Gregg W Stone, Alexandra J Lansky, Samuel Broderick, Jan G P Tijssen, Robbert J de Winter, Matthew T Roe, Mitchell W Krucoff
AIMS: ST-segment recovery (STR) is a strong mechanistic correlate of infarct size (IS) and outcome in ST-segment elevation myocardial infarction (STEMI). Characterizing measures of speed, amplitude, and completeness of STR may extend the use of this noninvasive biomarker. METHODS AND RESULTS: Core laboratory continuous 24-h 12-lead Holter ECG monitoring, IS by single-photon emission computed tomography (SPECT), and 30-day mortality of 2 clinical trials of primary percutaneous coronary intervention in STEMI were combined...
November 2017: Journal of Electrocardiology
https://www.readbyqxmd.com/read/29150800/beat-to-beat-estimation-of-stroke-volume-using-impedance-cardiography-and-artificial-neural-network
#6
S M M Naidu, Prem C Pandey, Uttam R Bagal, Suhas P Hardas
Impedance cardiography is a low-cost noninvasive technique, based on monitoring of the thoracic impedance, for estimation of stroke volume (SV). Impedance cardiogram (ICG) is the negative of the first derivative of the impedance signal. A technique for beat-to-beat SV estimation using impedance cardiography and artificial neural network (ANN) is proposed. A three-layer feed-forward ANN with error back-propagation algorithm is optimized by examining the effects of number of neurons in the hidden layer, activation function, training algorithm, and set of input parameters...
November 18, 2017: Medical & Biological Engineering & Computing
https://www.readbyqxmd.com/read/29150306/a-proposal-for-a-noninvasive-monitoring-of-sympathetic-nerve-activity-in-patients-with-takotsubo-syndrome
#7
John E Madias
The pathophysiology of takotsubo syndrome (TTS) is still elusive; many hypotheses of its cause have been proposed with a heightened activity of the peripheral autonomic sympathetic nervous system (PASNS) via local norepinephrine release, and direct cardiomyocyte toxicity mediated by blood-borne catecholamines, being among the most currently entertained. Monitoring of PASNS during hospitalization will provide a metric which could be of immense value in unraveling of the pathophysiology and aiding in the management of the patients with TTS by predicting in-hospital complications, long-term outcome, and its recurrence...
November 2017: Medical Hypotheses
https://www.readbyqxmd.com/read/29148015/clinical-performance-and-utility-of-a-nnmt-based-urine-test-for-bladder-cancer
#8
Valentina Pozzi, Giulia Di Ruscio, Davide Sartini, Roberto Campagna, Riccardo Seta, Paola Fulvi, Alexia Vici, Giulio Milanese, Gabriele Brandoni, Andrea B Galosi, Rodolfo Montironi, Monia Cecati, Monica Emanuelli
BACKGROUND: Bladder cancer (BC) represents the most common neoplasm of the urinary tract. Although cystoscopy and urine cytology represent the gold standard methods to monitor BC, both procedures have limitations. Therefore, the identification of reliable biomarkers for early and noninvasive detection of BC is urgently required. METHODS: In this study, we analyzed nicotinamide N-methyltransferase (NNMT) expression in urine samples from 55 BC patients and 107 controls, using real-time polymerase chain reaction (PCR)...
November 11, 2017: International Journal of Biological Markers
https://www.readbyqxmd.com/read/29147109/colorectal-cancer-blood-based-biomarkers
#9
REVIEW
Nina Hauptman, Damjan Glavač
Mortality and morbidity associated with colorectal cancer (CRC) are increasing globally, partly due to lack of early detection of the disease. The screening is usually performed with colonoscopy, which is invasive and unpleasant, discouraging participation in the screening. As a source of noninvasive and easily accessible biomarkers, liquid biopsies are emerging. Blood-based biomarkers have the potential as diagnostic and prognostic tool in CRC. Early stage detection of CRC with high sensitivity and specificity would likely lead to higher participation in the screening test...
2017: Gastroenterology Research and Practice
https://www.readbyqxmd.com/read/29145749/first-experiences-with-a-wearable-multisensor-device-in-a-noninvasive-continuous-glucose-monitoring-study-at-home-part-ii-the-investigators-view
#10
Mattia Zanon, Martin Mueller, Pavel Zakharov, Mark S Talary, Marc Donath, Werner A Stahel, Andreas Caduff
BACKGROUND: Extensive past work showed that noninvasive continuous glucose monitoring with a wearable multisensor device worn on the upper arm provides useful information about glucose trends to improve diabetes therapy in controlled and semicontrolled conditions. METHOD: To test previous findings also in uncontrolled conditions, a long term at home study has been organized to collect multisensor and reference glucose data in a population of 20 type 1 diabetes subjects...
November 1, 2017: Journal of Diabetes Science and Technology
https://www.readbyqxmd.com/read/29145557/comparative-analysis-of-the-growth-pattern-of-thyroid-cancer-in-young-patients-screened-by-ultrasonography-in-japan-after-a-nuclear-accident-the-fukushima-health-management-survey
#11
Sanae Midorikawa, Akira Ohtsuru, Michio Murakami, Hideto Takahashi, Satoru Suzuki, Takashi Matsuzuka, Hiroki Shimura, Tetsuya Ohira, Shin-Ichi Suzuki, Seiji Yasumura, Shunichi Yamashita, Hitoshi Ohto, Koichi Tanigawa, Kenji Kamiya
Importance: Thyroid cancer generally grows at a very slow rate in adults, and overdiagnosis is a global issue. However, the detection of early-stage thyroid cancer by screening is not well described in young patients. To prevent overdiagnosis, it is essential to understand the natural course of thyroid cancer growth detection by ultrasonography screening in young patients. Objective: To evaluate the natural progression of thyroid cancer in young patients. Design, Setting, and Participants: An observational study evaluated changes in the diameter of malignant or suspected malignant thyroid tumors on 2 occasions...
November 16, 2017: JAMA Otolaryngology—Head & Neck Surgery
https://www.readbyqxmd.com/read/29144516/a-ratiometric-mitochondria-targeting-two-photon-fluorescent-probe-for-imaging-of-nitric-oxide-in-vivo
#12
Xinyue Zhu, Jin-Quan Chen, Chen Ma, Xiaoyan Liu, Xiao-Ping Cao, Haixia Zhang
A two-photon ratiometric fluorescent probe (Mito-N) has been developed for monitoring mitochondrial nitric oxide (NO) in vivo. Mito-N exhibited excellent selectivity and sensitivity toward NO among various ROS/RNS. The successful two-photon imaging of mitochondrial NO proved that Mito-N is a powerful noninvasive imaging tool in living systems.
November 16, 2017: Analyst
https://www.readbyqxmd.com/read/29141750/use-of-a-novel-portable-three-dimensional-scanner-to-measure-limb-volume-and-circumference-in-patients-with-filarial-lymphedema
#13
Channa Yahathugoda, Michael J Weiler, Ramakrishna Rao, Lalindi De Silva, J Brandon Dixon, Mirani V Weerasooriya, Gary J Weil, Philip J Budge
The World Health Organization's Global Program to Eliminate Lymphatic Filariasis (LF) has reduced LF transmission worldwide, but millions remain affected by filarial lymphedema. Tools for clinically monitoring lymphedema in developing nations are limited. We tested a novel, portable, infrared three-dimensional (3D) scanner against water displacement (WD) and tape measurement of limb circumference (TMLC) among patients with filarial leg lymphedema in Galle, Sri Lanka. Outcomes were accuracy and reproducibility of scanner measurements...
October 16, 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/29141315/-clinical-efficacy-of-one-lung-ventilation-in-treatment-of-children-postoperatively-intractable-atelectasis
#14
J M Huo, K Bai, Y Q Fu, C J Liu, F Xu
Objective: To investigate the effect of fiberoptic bronchoscope-guided one-lung ventilation (OLV) on treatment of intractable atelectasis in children. Method: This retrospective cohort study was conducted in Pediatric Intensive Care Unit, Children's Hospital of Chongqing Medical University from December 2014 to May 2017. Six patients with intractable atelectasis of left lung were included. Three cases were male and three female with the age from 1.5 to 11.0 years. The endotracheal tube was intubated to the left main bronchus for OLV by the guidance of fiberoptic bronchoscopy...
November 2, 2017: Zhonghua Er Ke za Zhi. Chinese Journal of Pediatrics
https://www.readbyqxmd.com/read/29139480/position-paper-the-potential-role-of-optical-biopsy-in-the-study-and-diagnosis-of-environmental-enteric-dysfunction
#15
REVIEW
Alex J Thompson, Michael Hughes, Salzitsa Anastasova, Laurie S Conklin, Tudor Thomas, Cadman Leggett, William A Faubion, Thomas J Miller, Peter Delaney, François Lacombe, Sacha Loiseau, Alexander Meining, Rebecca Richards-Kortum, Guillermo J Tearney, Paul Kelly, Guang-Zhong Yang
Environmental enteric dysfunction (EED) is a disease of the small intestine affecting children and adults in low and middle income countries. Arising as a consequence of repeated infections, gut inflammation results in impaired intestinal absorptive and barrier function, leading to poor nutrient uptake and ultimately to stunting and other developmental limitations. Progress towards new biomarkers and interventions for EED is hampered by the practical and ethical difficulties of cross-validation with the gold standard of biopsy and histology...
November 15, 2017: Nature Reviews. Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/29138636/stem-cell-tracking-technologies-for-neurological-regenerative-medicine-purposes
#16
REVIEW
Yongtao Zheng, Jiongwei Huang, Tongming Zhu, Ronggang Li, Zhifu Wang, Fukai Ma, Jianhong Zhu
The growing field of stem cell therapy is moving toward clinical trials in a variety of applications, particularly for neurological diseases. However, this translation of cell therapies into humans has prompted a need to create innovative and breakthrough methods for stem cell tracing, to explore the migration routes and its reciprocity with microenvironment targets in the body, to monitor and track the outcome after stem cell transplantation therapy, and to track the distribution and cell viability of transplanted cells noninvasively and longitudinally...
2017: Stem Cells International
https://www.readbyqxmd.com/read/29136849/simultaneous-determination-of-three-estrogens-in-human-saliva-without-derivatization-or-liquid-liquid-extraction-for-routine-testing-via-miniaturized-solid-phase-extraction-with-lc-ms-ms-detection
#17
Xiaoguang Sunny Li, Shu Li, Gottfried Kellermann
Accurate quantitation of estrogens (i.e, estrone (E1), estradiol (E2) and estriol (E3)) is valuable for clinical assessment of human health and disease. Alterations in estrogen levels have been implicated in numerous pathological conditions. However, inadequacies in sensitivity and specificity, cumbersome sample preparation and invasive specimen collection hamper the usability of available methods for clinical applications. Herein, a simple, rapid, highly sensitive and specific LC-MS/MS method was developed and validated for the simultaneous determination of three estrogens in human saliva providing a non-invasive alternative to conventional blood samples...
February 1, 2018: Talanta
https://www.readbyqxmd.com/read/29131125/splanchnic-cerebral-oxygenation-ratio-decreases-during-enteral-feedings-in-anemic-preterm-infants-observations-under-near-infrared-spectroscopy
#18
Katherine Braski, Kimberlee Weaver-Lewis, Manndi Loertscher, Qian Ding, Xiaoming Sheng, Mariana Baserga
BACKGROUND: Anemia is common in premature infants. Due to risks with red blood cell transfusions, many anemic infants are not transfused. The implications of this pathophysiologic status, especially at times of increased metabolic demand (enteral feedings), is not well understood. Near-infrared spectroscopy (NIRS) allows for the noninvasive determination of regional oxygen saturations (rSO2) in tissues such as the brain and mesentery, giving insight into their oxygen sufficiency. OBJECTIVE: We tested the hypothesis that during enteral feedings very low birth weight (VLBW) infants with a hematocrit ≤28% will experience a decrease in splanchnic rSO2 and splanchnic-cerebral oxygenation ratio (SCOR)...
November 8, 2017: Neonatology
https://www.readbyqxmd.com/read/29126555/new-terminology-noninvasive-follicular-neoplasm-with-papillary-like-nuclear-features-niftp-and-its-effect-on-the-rate-of-malignancy-at-a-single-institution
#19
Colleen M Kiernan, Vivian L Weiss, Mitra Mehrad, Kim Ely, Naira Baregamian, Carmen C Solórzano
BACKGROUND: The cytologic qualities of noninvasive follicular neoplasm with papillary-like nuclear features mimic papillary thyroid carcinoma (PTC) on fine-needle aspiration, leading to difficulty in distinguishing the 2 preoperatively. The aim of this study was to determine the impact of reclassification of noninvasive follicular neoplasm with papillary-like nuclear features at our practice. METHODS: We searched 1,046 patient charts for those cases with preoperative cytology and subsequent follicular-variant papillary thyroid carcinoma diagnosis on resection...
November 7, 2017: Surgery
https://www.readbyqxmd.com/read/29126007/quantitative-monitoring-of-sucrose-reducing-sugar-and-total-sugar-dynamics-for-phenotyping-of-water-deficit-stress-tolerance-in-rice-through-spectroscopy-and-chemometrics
#20
Bappa Das, Rabi N Sahoo, Sourabh Pargal, Gopal Krishna, Rakesh Verma, Viswanathan Chinnusamy, Vinay K Sehgal, Vinod K Gupta, Sushanta K Dash, Padmini Swain
In the present investigation, the changes in sucrose, reducing and total sugar content due to water-deficit stress in rice leaves were modeled using visible, near infrared (VNIR) and shortwave infrared (SWIR) spectroscopy. The objectives of the study were to identify the best vegetation indices and suitable multivariate technique based on precise analysis of hyperspectral data (350 to 2500nm) and sucrose, reducing sugar and total sugar content measured at different stress levels from 16 different rice genotypes...
October 31, 2017: Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy
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