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https://www.readbyqxmd.com/read/29309053/employing-a-biochemical-protecting-group-for-a-sustainable-indigo-dyeing-strategy
#1
Tammy M Hsu, Ditte H Welner, Zachary N Russ, Bernardo Cervantes, Ramya L Prathuri, Paul D Adams, John E Dueber
Indigo is an ancient dye uniquely capable of producing the signature tones in blue denim; however, the dyeing process requires chemical steps that are environmentally damaging. We describe a sustainable dyeing strategy that not only circumvents the use of toxic reagents for indigo chemical synthesis but also removes the need for a reducing agent for dye solubilization. This strategy utilizes a glucose moiety as a biochemical protecting group to stabilize the reactive indigo precursor indoxyl to form indican, preventing spontaneous oxidation to crystalline indigo during microbial fermentation...
January 8, 2018: Nature Chemical Biology
https://www.readbyqxmd.com/read/29305200/ultrasound-for-intraoperative-confirmation-of-antegrade-ureteral-stent-placement-during-laparoscopic-pyeloplasty
#2
David B Bayne, Manint Usawachintachit, Thomas Chi
OBJECTIVE: To describe our ultrasound technique for confirming intraoperative, antegrade-placed ureteral stent position during laparoscopic pyeloplasty. BACKGROUND: Disadvantages of retrograde stent placement include the need to reposition the patient into and out of the lithotomy position. Antegrade stent placement can reduce procedure time but requires confirming appropriate distal placement into the bladder with cystoscopy, percutaneous drain placement, or instillation of methylthioninium chloride or indigo carmine...
January 2, 2018: Urology
https://www.readbyqxmd.com/read/29278502/interligand-charge-transfer-in-a-complex-of-deprotonated-cis-indigo-dianions-and-tin-ii-phthalocyanine-radical-anions-with-cp-iriii
#3
Dmitri V Konarev, Leokadiya V Zorina, Salavat S Khasanov, Alexander F Shestakov, Alexey M Fatalov, Akihiro Otsuka, Hideki Yamochi, Hiroshi Kitagawa, Rimma N Lyubovskaya
A diamagnetic complex, {(cis-indigo-N,N)2-(Cp*IrIII)} (1), in which deprotonated cis-indigo dianions coordinate an iridium center through two nitrogen atoms was obtained. By employment of the ability of the iridium center in 1 to coordinate an additional ligand, the complex [(Bu4N+)2{[SnII(Pc•3-)](cis-indigo-N,N)2-Cp*IrIII}•-2·0.5(H2Indigo)·2.5C6H4Cl2 (2), which has two functional ligands coordinating an IrIII center, was obtained. This complex has a magnetic moment of 1.71 μB at 300 K, in accordance with an S = 1/2 spin state...
December 26, 2017: Inorganic Chemistry
https://www.readbyqxmd.com/read/29277229/selective-and-simultaneous-determination-of-indigo-carmine-and-allura-red-in-candy-samples-at-the-nano-concentration-range-by-flow-injection-analysis-with-multiple-pulse-amperometric-detection
#4
Patrícia B Deroco, Roberta A Medeiros, Romeu C Rocha-Filho, Orlando Fatibello-Filho
A novel, unique electroanalytical method was developed for the simultaneous quantification of the dyes indigo carmine (IC) and allura red (AR) in candies by coupling flow injection analysis and multiple pulse amperometry with a cathodically pretreated boron-doped diamond electrode, using 0.30 mol L-1 H2SO4 as supporting electrolyte. A dual-potential waveform was employed, causing the electrooxidation of either IC solely or IC and AR simultaneously. Thence, subtraction of current signals was used to quantify IC and AR in the concentration ranges of 70...
May 1, 2018: Food Chemistry
https://www.readbyqxmd.com/read/29234273/indirubin-derivative-7-bromoindirubin-3-oxime-7bio-attenuates-a%C3%AE-oligomer-induced-cognitive-impairments-in-mice
#5
Liping Chen, Chunhui Huang, Jieyi Shentu, Minjun Wang, Sicheng Yan, Fei Zhou, Zaijun Zhang, Chuang Wang, Yifan Han, Qinwen Wang, Wei Cui
Indirubins are natural occurring alkaloids extracted from indigo dye-containing plants. Indirubins could inhibit various kinases, and might be used to treat chronic myelocytic leukemia, cancer and neurodegenerative disorders. 7-bromoindirubin-3-oxime (7Bio), an indirubin derivative derived from indirubin-3-oxime, possesses inhibitory effects against cyclin-dependent kinase-5 (CDK5) and glycogen synthase kinase-3β (GSK3β), two pharmacological targets of Alzheimer's disease (AD). In this study, we have discovered that 2...
2017: Frontiers in Molecular Neuroscience
https://www.readbyqxmd.com/read/29232592/the-impact-of-oral-arsenic-and-all-trans-retinoic-acid-on-coagulopathy-in-acute-promyelocytic-leukemia
#6
Hong-Hu Zhu, Zhi-Ping Guo, Jin-Song Jia, Qian Jiang, Hao Jiang, Xiao-Jun Huang
The aim of our study was to evaluate the impact of oral arsenic (the realgar-indigo naturalis formula, RIF) and all-trans retinoic acid (ATRA) on coagulopathy in acute promyelocytic leukemia (APL) compared with intravenous arsenic trioxide (ATO) and ATRA during induction. Mitoxantrone was added to all the patients at a dose of 1.4mg/m2 per day for 5-7 days. D-dimer levels, prothrombin time (PT), fibrinogen (Fbg) levels and the platelet count were comparably analyzed among 83 newly diagnosed APL patients treated with RIF (n=45) or with ATO (n=38)...
November 15, 2017: Leukemia Research
https://www.readbyqxmd.com/read/29231742/interactions-and-supramolecular-organization-of-sulfonated-indigo-and-thioindigo-dyes-in-layered-hydroxide-hosts
#7
Ana Luisa Costa, Ana C Gomes, Ricardo Costa Pereira, Martyn Pillinger, Isabel Sousa Gonçalves, Marta Pineiro, J Sérgio Seixas de Melo
Supramolecularly organized host-guest systems have been synthesized by intercalating water-soluble forms of indigo (indigo carmine, IC) and thioindigo (thioindigo-5,5'-disulfonate, TIS) in zinc-aluminum layered double hydroxides (LDHs) and zinc layered hydroxide salts (LHSs) by coprecipitation routes. The colors of the isolated powders were dark blue for hybrids containing only IC, purplish blue or dark lilac for cointercalated samples containing both dyes, and ruby/wine for hybrids containing only TIS. As-synthesized and thermally treated materials were characterized by FT-IR, FT-Raman and NMR spectroscopies, powder X-ray diffraction, SEM, elemental and thermogravimetric analyses...
December 12, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/29217322/incidence-of-ureterovesical-obstruction-and-cohen-antireflux-surgery-after-deflux%C3%A2-treatment-for-vesicoureteric-reflux
#8
Manabu Okawada, Hiroshi Murakami, Nana Tanaka, Yuki Ogasawara, Geoffrey J Lane, Tadaharu Okazaki, Toshihiro Yanai, Masahiko Urao, Atsuyuki Yamataka
AIM: The purpose of this study was to determine the incidence of ureteric obstruction (UB) and requirement for Cohen antireflux surgery (CAS) after DefluxⓇ treatment (DT) for vesicoureteric reflux (VUR). METHODS: Between 2011 and 2017, 494 ureters (VUR severity ≤ grade III: N=291 or >grade IV: N=203) were treated by DT at a mean age of 4.5 (range: 0.2-24) years. Epidural Catheter Assistance (ECA) was used to exclude UB by injecting diluted indigo carmine solution (1-3mL) into an epidural catheter inserted into a ureter after DT and confirming dye flow within 15min...
November 14, 2017: Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/29210662/response-to-doxorubicin-of-exfoliated-human-buccal-epithelium-cells-comparison-of-three-methods-of-cell-staining-and-calcium-assessment
#9
Yuriy Shckorbatov, Dmitriy Miroshnik, Igor Kovalenko
BACKGROUND: Doxorubicin is an anthracycline antibiotic which inhibits DNA and RNA synthesis intercalating DNA double helix and inducing free radicals. Doxorubicin is used in treatment of cancer diseases. The influence of Doxorubicin on human buccal cell was used as a model for assessment of toxic effects in vitro. OBJECTIVE: We studied the possibility of using the process of heterochromatinization in cell nuclei in toxicological investigations of drugs in vitro...
December 6, 2017: Current Drug Discovery Technologies
https://www.readbyqxmd.com/read/29195216/photo-induced-toxicity-of-tungsten-oxide-photochromic-nanoparticles
#10
A L Popov, N M Zholobak, O I Balko, O B Balko, A B Shcherbakov, N R Popova, O S Ivanova, A E Baranchikov, V K Ivanov
We synthesised a new type of photochromic tungsten oxide nanoparticles, analysed their photocatalytic activity and carried out a thorough analysis of their effect on prokaryotic and eukaryotic organisms. Ultrasmall hydrated tungsten oxide nanoparticles were prepared by means of hydrothermal treatment of tungstic acid in the presence of polyvinylpyrrolidone as a template, stabiliser and growth regulator. Tungstic acid was synthesised through an ion-exchange method using sodium tungstate solution and a strongly acidic cation exchange resin...
November 20, 2017: Journal of Photochemistry and Photobiology. B, Biology
https://www.readbyqxmd.com/read/29174928/efficacy-of-indigo-naturalis-in-a-multicenter-randomized-controlled-trial-of-patients-with-ulcerative-colitis
#11
Makoto Naganuma, Shinya Sugimoto, Keiichi Mitsuyama, Taku Kobayashi, Naoki Yoshimura, Hidehisa Ohi, Shinji Tanaka, Akira Andoh, Naoki Ohmiya, Keiichiro Saigusa, Takayuki Yamamoto, Yuichi Morohoshi, Hitoshi Ichikawa, Katsuyoshi Matsuoka, Tadakazu Hisamatsu, Kenji Watanabe, Shinta Mizuno, Wataru Suda, Masahira Hattori, Shinji Fukuda, Akiyoshi Hirayama, Takayuki Abe, Mamoru Watanabe, Toshifumi Hibi, Yasuo Suzuki, Takanori Kanai
BACKGROUND & AIMS: Indigo naturalis (IN) is a traditional Chinese medicine that contains ligands for the aryl hydrocarbon receptor and promotes regeneration of the mucosa, by inducing production of interleukin 22. IN might induce mucosal healing in patients with ulcerative colitis (UC). We performed a randomized controlled trial to investigate the safety and efficacy of IN in patients with UC. METHODS: We performed a multicenter, double-blind trial evaluated the safety of 86 patients in Japan with active UC (Mayo scores of 6 or more), enrolled from March 30 through December 27 2016...
November 22, 2017: Gastroenterology
https://www.readbyqxmd.com/read/29172683/new-technique-of-percutaneous-ct-fluoroscopy-guided-marking-before-video-assisted-thoracoscopic-surgery-for-small-lung-lesions-feasibility-of-using-a-25-gauge-needle-without-local-anesthesia
#12
Yasuteru Shimamura, Shigeru Sasaki, Masashi Shimohira, Hiroyuki Ogino, Daisuke Yuki, Katsumi Nakamae, Masaki Hara, Yuta Shibamoto
OBJECTIVE: To retrospectively evaluate the feasibility of CT fluoroscopy-guided percutaneous marking using a 25-gauge needle and indigo carmine before video-assisted thoracoscopic surgery (VATS) for small lung lesions. METHODS: Twenty-one patients, 14 males and 7 females, with a median age of 69 years (range, 40-79), underwent CT fluoroscopy-guided percutaneous VATS marking using a 25-gauge, 70-mm needle and 1.5 ml indigo carmine. The mean diameter of the lung lesions was 14 mm (range, 6-27)...
November 27, 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/29165903/deprotonated-indigo-as-bridging-ligand-in-cis-and-trans-configuration
#13
Goutam Kumar Lahiri
The doubly deprotonated form L2 of indigo = H2L can bind two [Ru(acac)2] complex fragments in the cis (1) and trans configuration (2), as evident from crystal structure analysis. While the latter type of N,O; N/,O/ coordination has been observed earlier, e.g. with [Ru(bpy)2]2+, leading to two equivalent six-membered ring chelates, the cis arrangement in 1 is observed here for the first time in a dinuclear complex, producing one five-membered ring chelate with N,N/ coordination and one seven-membered chelate with O,O/ coordination...
November 22, 2017: Chemistry, An Asian Journal
https://www.readbyqxmd.com/read/29128156/utility-of-a-power-aspiration-based-extraction-technique-as-an-initial-and-secondary-approach-in-the-treatment-of-peripheral-arterial-thromboembolism-results-of-the-multicenter-prism-trial
#14
Richard R Saxon, James F Benenati, Corey Teigen, George L Adams, Luke E Sewall
PURPOSE: To investigate the safety and initial efficacy of XTRACT, a power aspiration-based extraction technique for treatment of peripheral arterial thromboembolism with the use of the Penumbra/Indigo system. MATERIALS AND METHODS: A total of 79 patients were enrolled: 39 (49.4%) underwent XTRACT as the initial therapy and 40 (50.6%) underwent XTRACT after failed catheter-directed thrombolysis or other mechanical intervention or for removal of distal emboli that occurred during an intervention...
November 9, 2017: Journal of Vascular and Interventional Radiology: JVIR
https://www.readbyqxmd.com/read/29122863/complete-genome-sequence-of-indigo-producing-bacterium-celeribacter-sp-strain-tsph2
#15
Hae-Seon Kim, Sun Ho Cha, Ho Young Suk, Tae-Hyung Kwon, Jung-Hee Woo
Celeribacter sp. strain TSPH2, a novel producer of indigo, was isolated from oil-contaminated sediment. We present here its genome sequence consisting of one circular chromosome (4 Mb) and one plasmid (0.15 Mb), with an overall G+C content of 60.9%. This strain contains oxygenase genes involved in indigo synthesis, such as flavin-containing monooxygenase.
November 9, 2017: Genome Announcements
https://www.readbyqxmd.com/read/29102272/aspiration-thrombectomy-for-treatment-of-acute-massive-and-submassive-pulmonary-embolism-initial-single-center-prospective-experience
#16
Juan José Ciampi-Dopazo, Juan María Romeu-Prieto, Marcelino Sánchez-Casado, Beatriz Romerosa, Alfonso Canabal, María Luisa Rodríguez-Blanco, Carlos Lanciego
PURPOSE: To evaluate the feasibility of aspiration thrombectomy in patients with acute massive or submassive pulmonary embolism (PE). MATERIALS AND METHODS: This prospective study analyzed patient demographic data, procedural details, and outcomes in 18 consecutive patients (8 men and 10 women; mean age, 60.1 y; range, 36-80 y), 10 with acute submassive PE and 8 with massive PE, treated with an Indigo Continuous Aspiration Mechanical Thrombectomy Catheter between January 2016 and February 2017...
October 25, 2017: Journal of Vascular and Interventional Radiology: JVIR
https://www.readbyqxmd.com/read/29098518/the-detection-of-sentinel-lymph-nodes-in-laparoscopic-surgery-can-eliminate-systemic-lymphadenectomy-for-patients-with-early-stage-endometrial-cancer
#17
Tomohito Tanaka, Yoshito Terai, Satoe Fujiwara, Yoshimichi Tanaka, Hiroshi Sasaki, Satoshi Tsunetoh, Kazuhiro Yamamoto, Takashi Yamada, Masahide Ohmichi
BACKGROUND: The examination of a sentinel lymph node (SLN), where lymph node metastasis first occurs, may be advocated as an alternative staging technique. The aim of this study was to evaluate the feasibility and detection rates of an SLN biopsy in patients with endometrial cancer. STUDY DESIGN: Two hundred and eleven patients with endometrial cancer underwent an SLN biopsy at hysterectomy using three kinds of tracers including 99m-technetium-labeled tin colloid ((99m)Tc), indigo carmine and indocyanine green...
November 2, 2017: International Journal of Clinical Oncology
https://www.readbyqxmd.com/read/29075900/clinical-importance-of-il-22-cascade-in-ibd
#18
REVIEW
Atsushi Mizoguchi, Arisa Yano, Hidetomo Himuro, Yui Ezaki, Takayuki Sadanaga, Emiko Mizoguchi
IL-22 is a relatively new cytokine that is characterized by several unique biological properties. In the intestines, the effect of IL-22 is restricted mainly to non-lymphoid cells such as epithelial cells. Interestingly, the expression pattern and major cellular source of IL-22 have distinct difference between large and small intestines. IL-22 possesses an ability to constitutively activate STAT3 for promoting epithelial cell regeneration and reinforcing mucosal barrier integrity through stimulating the expression of anti-bacterial peptide and mucins...
October 26, 2017: Journal of Gastroenterology
https://www.readbyqxmd.com/read/29058439/rh-ii-catalyzed-denitrogenative-reaction-of-n-sulfonyl-1-2-3-triazoles-with-isatins-for-the-construction-of-indigoids
#19
Kuntal Pal, Rahul K Shukla, Chandra M R Volla
A convenient, Rh(II)-catalyzed, denitrogenative reaction of N-sulfonyl-1,2,3-triazoles and isatins to access (E)-2-(1-amino-2-oxo-2-phenylethylidene)indolin-3-ones, the core structure of indigo dyes, was achieved under operationally simple conditions with high levels of diastereoselectivity. Moreover, photophysical and electrochemical studies were conducted to understand their applicability in optoelectronic applications.
October 23, 2017: Organic Letters
https://www.readbyqxmd.com/read/29039888/which-is-best-method-for-instillation-of-topical-therapy-to-the-upper-urinary-tract-an-in-vivo-porcine-study-to-evaluate-three-delivery-methods
#20
Zhenbang Liu, Junxiang Ng, Arianto Yuwono, Yadong Lu, Yung Khan Tan
PURPOSE: To compare the staining intensity of the upper urinary tract (UUT) urothelium among three UUT delivery methods in an in vivo porcine model. MATERIALS AND METHODS: A fluorescent dye solution (indigo carmine) was delivered to the UUT via three different methods: antegrade perfusion, vesico-ureteral reflux via indwelling ureteric stent and retrograde perfusion via a 5F open-ended ureteral catheter. Twelve renal units were tested with 4 in each method. After a 2-hour delivery time, the renal-ureter units were harvested en bloc...
October 17, 2017: International Braz J Urol: Official Journal of the Brazilian Society of Urology
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