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Jesús Escrivá Muñoz, Y Pan, S Ge, E W Jensen, M Vallverdú
The purpose of this document is to describe a methodology to select the most adequate time-frequency distribution (TFD) kernel for the characterization of impedance cardiography signals (ICG). The predominant ICG beat was extracted from a patient and was synthetized using time-frequency variant Fourier approximations. These synthetized signals were used to optimize several TFD kernels according to a performance maximization. The optimized kernels were tested for noise resistance on a clinical database. The resulting optimized TFD kernels are presented with their performance calculated using newly proposed methods...
March 16, 2018: Medical & Biological Engineering & Computing
Walid Korani, Ye Chu, C Corley Holbrook, Peggy Ozias-Akins
Post-harvest aflatoxin contamination is a challenging issue that affects peanut quality. Aflatoxin is produced by fungi belonging to the Aspergilli group, and is known as an acutely toxic, carcinogenic and immune-suppressing class of mycotoxins. Evidence for several host genetic factors that may impact aflatoxin contamination has been reported, e.g. , genes for lipoxygenase (PnLOX1 and PnLOX2/PnLOX3 that showed either positive or negative regulation with Aspergillus infection), ROS, and WRKY (highly associated with or differentially expressed upon infection of maize with A...
March 15, 2018: Genetics
Liuqi Peng, Xuan Mei, Jun He, Jiekun Xu, Weiku Zhang, Ruizheng Liang, Min Wei, David G Evans, Xue Duan
2D nanomaterials have attracted considerable research interest in drug delivery systems, owing to their intriguing quantum size and surface effect. Herein, Gd3+ -doped monolayered-double-hydroxide (MLDH) nanosheets are prepared via a facile bottom-up synthesis method, with a precisely controlled composition and uniform morphology. MLDH nanosheets as drug carrier are demonstrated in coloading of doxorubicin and indocyanine green (DOX&ICG), with an ultrahigh drug loading content (LC) of 797.36% and an encapsulation efficiency (EE) of 99...
March 14, 2018: Advanced Materials
P F Alesina, B Meier, J Hinrichs, W Mohmand, M K Walz
PURPOSE: Visualization and precise dissection of the parathyroid glands are a crucial step of thyroidectomy. Moreover, identification of parathyroid adenoma in patients with primary hyperparathyroidism can be challenging due to the possible abnormal location of the enlarged parathyroid. Near-infrared fluorescence (NIR) can be adopted during video-assisted neck surgery in addition to standard endoscopic magnification to enhance the visualization of the parathyroid tissue. METHODS: Between July and August 2017, five patients (one male, four females) underwent video-assisted neck surgery at our hospital...
March 13, 2018: Langenbeck's Archives of Surgery
Wasco Wruck, James Adjaye
Induced pluripotent stem cells (iPSCs) and human embryonic stem cells (hESCs) differentiated into hepatocyte-like cells (HLCs) provide a defined and renewable source of cells for drug screening, toxicology and regenerative medicine. We previously reprogrammed human fetal foreskin fibroblast cells (HFF1) into iPSCs employing an episomal plasmid-based integration-free approach, this iPSC-line and the hESC lines H1 and H9 were used to model hepatogenesis in vitro. Biochemical characterisation confirmed glycogen storage, ICG uptake and release, urea and bile acid production, as well as CYP3A4 activity...
March 13, 2018: Scientific Data
Chufeng Gu, Qinghua Qiu
PURPOSE: The aim of this systematic review was to determine the anatomical outcome-macular hole (MH) closure rate-and functional outcome-visual acuity (VA) improvement rate-of the inverted internal limiting membrane (ILM) flap technique for large MH. METHODS: We searched for articles on large MH (> 400 μm) treated with inverted ILM flap technique in databases as of December 1, 2017. And single-arm meta-analysis was performed for the primary outcome of MH closure rate and the secondary outcome of VA improvement rate...
March 12, 2018: Graefe's Archive for Clinical and Experimental Ophthalmology
Alberto A Mendivil, Lisa N Abaid, John V Brown, Kristina M Mori, Tiffany L Beck, Howard D Epstein, John P Micha, Bram H Goldstein
OBJECTIVES: The purpose of this study was to report on the feasibility of laparoscopic sentinel lymph node (SLN) staging using indocyanine green (ICG) in the management of endometrial cancer. STUDY DESIGN: We retrospectively evaluated the charts of presumed, clinical stage I endometrial cancer patients who underwent robotic-assisted surgery that incorporated mapping with ICG and SLN dissection from January 2016 until February 2017. Patient demographics, operative characteristics (e...
March 3, 2018: European Journal of Obstetrics, Gynecology, and Reproductive Biology
Yalan Rui, Bo Pang, Jinnan Zhang, Yuxi Liu, Huixin Hu, Zicun Liu, Sarah Ama Baidoo, Chang Liu, Yu Zhao, Siwen Li
A polyelectrolyte microcapsule-based layer-by-layer (LbL) technique has been widely used as a multifunctional vehicle for combined tumor therapy. Meanwhile, with the rapid development of combined tumour therapy, the challenge for designing multifunctional drug delivery system has attracted much more attention. Herein, we developed a new type of microcapsule (MC) system called MPA@siRNA@DOX@MC, which conjugated with siRNA and DOX as well as ICG-Der-02 (MPA) by electrostatic absorption. MPA as indocyanine green (ICG) fluorescence dye, exhibiting high fluorescence emission and photothermal conversion ability under NIR laser irradiation, was uploaded onto this drug system for realizing the controllable drug release and cancer theranostics...
March 11, 2018: Artificial Cells, Nanomedicine, and Biotechnology
Jianqin Tang, Huige Zhou, Xiaoyang Hou, Liming Wang, Yaxi Li, Yanyu Pang, Chunying Chen, Guan Jiang, Yanqun Liu
Chemotherapy is an important treatment for malignant tumors; however, its efficacy and clinical application are limited by its side effects and drug resistance properties. Chemotherapy and phototherapy exhibit synergistic anti-tumor effects. In the present study, a carboxylated poly(amido-amine) (PAMAM) with low cytotoxicity was synthesized as a delivery nanocarrier for loading chemotherapeutic drugs, temozolomide (TMZ), and fluorescent dye indocyanine green (ICG). Hyaluronic acid (HA), which targets the CD44-overexpressing cancer cells, was modified on the nanocarrier surface to enhance the selective killing of melanoma cells...
March 7, 2018: Cancer Letters
Ju-Hyun Kim, Dae-Yeon Kim, Dae-Shik Suh, Jong-Hyeok Kim, Yong-Man Kim, Young-Tak Kim, Joo-Hyun Nam
BACKGROUND: Lymph node metastasis is a significant predictive factor for disease recurrence and survival in cervical cancer patients. Given the importance of lymph node metastasis, it is imperative that patients harboring metastasis are identified and can undergo appropriate treatment. Sentinel lymph node (SLN) mapping has drawn attention as a lymph node mapping technique. We evaluated the feasibility and efficacy of (SLN) mapping using indocyanine green (ICG) in cervical cancer. METHODS: We performed a single-center, retrospective study of 103 surgically treated cervical cancer patients who underwent SLN mapping...
March 9, 2018: World Journal of Surgical Oncology
Rei Nagahara, Nobuhiko Onda, Susumu Yamashita, Miho Kojima, Mari Inohana, Ayumi Eguchi, Misato Nakamura, Shinya Matsumoto, Toshinori Yoshida, Makoto Shibutani
Fluorescence tumor imaging using exogenous fluorescent tumor-targeting agents has potential to improve early tumor detection. The fluorescent contrast agent indocyanine green (ICG) is used in medical diagnostics. The aim of the present study is to investigate the tumor imaging capability and the imaging mechanism of i.v. administered ICG in a mouse model of colitis-associated colon cancer. To do this, an azoxymethane/dextran sodium sulfate-induced colon cancer mouse model was used. Ex vivo imaging experiments were performed 1 hour after i...
March 9, 2018: Cancer Science
Seong Yong Park, Jee Won Suh, Dae Joon Kim, Jun Chul Park, Eun Hye Kim, Chang Young Lee, Jin Gu Lee, Hyo Chae Paik, Kyoung Young Chung
BACKGROUND: It is still unclear that dissection of recurrent laryngeal nerve nodes is mandatory in patients with cT1 middle or lower thoracic esophageal squamous cell carcinoma when the nodes are negative in preoperative staging work-up. We aimed to evaluate the feasibility of near-infrared image-guided lymphatic mapping of bilateral recurrent laryngeal nerve nodes. METHODS: The day before surgery, we injected indocyanine green (ICG) into submucosal layer by endoscopy...
March 5, 2018: Annals of Thoracic Surgery
Keishi Okubo, Yoshikazu Uenosono, Takaaki Arigami, Daisuke Matsushita, Shigehiro Yanagita, Takashi Kijima, Masahiko Amatatsu, Sumiya Ishigami, Kosei Maemura, Shoji Natsugoe
BACKGROUND: The sentinel node (SN) detection by dual tracer method using indocyanine green (ICG) and a radioisotope (RI) has been recommended for early gastric cancer. However, institutions are limited due to radioactivity in the RI method. The greatest advantage of the RI method is that it objectively assesses RI uptake as a numerical value. The aim of the present study was to verify the usefulness of ICG fluorescence intensity in SN. METHODS: Seventeen patients with early gastric cancer were enrolled in this study...
March 7, 2018: Gastric Cancer
Padmavathi A V Thangella, Srinivas N B S Pasumarti, Raghu Pullakhandam, Bhanuprakash Reddy Geereddy, Manohar Rao Daggu
Drought is a major constraint to the productivity of many crops affecting various physiological and biochemical processes. Seventy percent of the peanuts are grown in semiarid tropics that are frequently prone to drought stress. So, we analyzed its effect in 4 cultivars of peanut, with different degrees of drought tolerance, under 10 and 20 days of water stress using two-dimensional gel electrophoresis and mass spectrometry. A total of 189 differentially expressed protein spots were identified in the leaf proteome of all the 4 cultivars using PD Quest Basic software; 74 in ICGV 91114, 41 in ICGS 76, 44 in J 11 and 30 in JL 24...
March 2018: 3 Biotech
Jianbiao Zhou, Sabrina Hui-Min Toh, Zit-Liang Chan, Jessie Yiying Quah, Jing-Yuan Chooi, Tuan Zea Tan, Phyllis S Y Chong, Qi Zeng, Wee-Joo Chng
BACKGROUND: Protein tyrosine phosphatase of regenerating liver 3 (PRL-3) is overexpressed in a subset of AML patients with inferior prognosis, representing an attractive therapeutic target. However, due to relatively shallow pocket of the catalytic site of PRL-3, it is difficult to develop selective small molecule inhibitor. METHODS: In this study, we performed whole-genome lentiviral shRNA library screening to discover synthetic lethal target to PRL-3 in AML. We used specific small molecule inhibitors to validate the synthetic lethality in human PRL-3 high vs PRL-3 low human AML cell lines and primary bone marrow cells from AML patients...
March 7, 2018: Journal of Hematology & Oncology
Stephanie Stiel, Maria Heckel, Kim Nikola Wendt, Martin Weber, Christoph Ostgathe
BACKGROUND: Patient-reported outcomes are usually considered to be the gold standard assessment. However, for the assessment of quality of dying and death, ratings of informal caregivers (ICGs) or health-care professionals (HCPs) must be considered for ethical and methodological reasons. This article aims to present results of ICGs' and HCPs' estimates of the questionnaire, quality of dying and death (QoDD) on patients who died in PCUs and to compare the level of agreement of both ratings/raters...
January 1, 2018: American Journal of Hospice & Palliative Care
Haolu Wang, Xinxing Li, Brian Wan-Chi Tse, Haotian Yang, Camilla A Thorling, Yuxin Liu, Margaux Touraud, Jean Batiste Chouane, Xin Liu, Michael S Roberts, Xiaowen Liang
Indocyanine green (ICG) is a near-infrared dye that has been used in the clinic for retinal angiography, and defining cardiovascular and liver function for over 50 years. Recently, there has been an increasing interest in the incorporation of ICG into nanoparticles (NPs) for cancer theranostic applications. Various types of ICG-incorporated NPs have been developed and strategically functionalised to embrace multiple imaging and therapeutic techniques for cancer diagnosis and treatment. This review systematically summaries the biodistribution of various types of ICG-incorporated NPs for the first time, and discusses the principles, opportunities, limitations, and application of ICG-incorporated NPs for cancer theranostics...
2018: Theranostics
Komal M Joshi, Manjot K Gill
Purpose: To report the only known case, to our knowledge, of amiodarone induced retinal phototoxicity following vitrectomy surgery. Observations: A 66-year-old male presented with visual acuity of 20/150 OS secondary to an epiretinal membrane (ERM). Patient was on oral amiodarone for atrial fibrillation. Baseline spectral domain optical coherence tomography (SD-OCT) revealed an ERM with retinal thickening and schisis. The patient underwent an uncomplicated pars plana vitrectomy and membrane peel using standard vitrectomy settings and illumination...
April 2017: American Journal of Ophthalmology Case Reports
Mikel Gorostidi, Cecilia Villalain, Ruben Ruiz, Ibon Jaunarena, Arantxa Lekuona, Irene Diez
STUDY OBJECTIVE: To determine the importance of a dual (cervical and fundal) indocyanine green (ICG) injection and a thorough dissection for the detection of sentinel lymph node (SLN). DESIGN: Step-by-step description of a surgical procedure using video (Canadian Task Force III) SETTING: Hospital Universitario Donostia (Spain). PATIENTS: A 60-year-old woman with a diagnosis of IAG1 endometrial adenocarcinoma (EC). INTERVENTIONS: The patient underwent a cervical and transcervical fundal ICG injection for paraortic and pelvic SLN detection in the setting of a research protocol and a total hysterectomy and bilateral salpingo-oophorectomy with frozen section of the uterus as standard approach (1)...
March 1, 2018: Journal of Minimally Invasive Gynecology
Danli Sheng, Tianzhi Liu, Liming Deng, Liang Zhang, Xuelin Li, Jie Xu, Lan Hao, Pan Li, Haitao Ran, Hangrong Chen, Zhigang Wang
As a highly biocompatible NIR dye, indocyanine green (ICG) has been widely explored for cancer treatment due to its various energy level transition pathways upon NIR light excitation simultaneously, which leads to different theranostic effects (eg. Photoacoustic (PA) and fluorescence imaging (FL), photodynamic and photothermal therapy (PDT&PTT)). However, the theranostic efficiency of ICG is restricted intrinsically, owing to the competitive relationship of its co-existing imaging and therapeutic effect...
February 24, 2018: Biomaterials
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