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Takao Kiboshi, Kentaro Isoda, Koichi Furukawa, Tomoyuki Wakahara, Kenichiro Otani, Kayo Ueda, Junichi Konma, Kazuhiro Teramura, Nozomi Ueno, Hiroshi Fujiwara, Takeshi Shoda
  A 51-year-old man was detected nasal bleeding, multiple pulmonary nodule and mass, urinalysis abnormality, renal involvement and high titer of proteinase 3-anti-neutrophil cytoplasmic antibody (PR3-ANCA), and was suspected of granulomatosis with polyangiitis and initiated with steroid pulse therapy. On the day after the start of steroid pulse therapy, generalized peritonitis due to ileal perforation occurred, and emergency ileectomy and peritonitis surgery were performed. Induction therapy with steroid pulse therapy, plasma exchange and intravenous cyclophosphamide therapy (IVCY) and maintenance therapy with glucocorticoid and azathioprine led to good therapeutic outcomes...
2017: Nihon Rinshō Men'eki Gakkai Kaishi, Japanese Journal of Clinical Immunology
Gayathri Bharathan, Robert I Woodward, Martin Ams, Darren D Hudson, Stuart D Jackson, Alex Fuerbach
We report the development of a widely tunable all-fiber mid-infrared laser system based on a mechanically robust fiber Bragg grating (FBG) which was inscribed through the polymer coating of a Ho3+-Pr3+ co-doped double clad ZBLAN fluoride fiber by focusing femtosecond laser pulses into the core of the fiber without the use of a phase mask. By applying mechanical tension and compression to the FBG while pumping the fiber with an 1150 nm laser diode, a continuous wave (CW) all-fiber laser with a tuning range of 37 nm, centered at 2870 nm, was demonstrated with up to 0...
November 27, 2017: Optics Express
Hong Sheng Quah, Li Ting Ng, Jagadese J Vittal
Twenty-eight lanthanide coordination polymers (CPs) containing 9,10-anthracene dicarboxylate (ADC) linkers have been synthesized and characterized. For the earlier class of lanthanides La3+, Ce3+, Pr3+, Nd3+, Sm3+, Eu3+, Gd3+ and Tb3+, the 3D pcu net was generated from dimethylformamide (DMF) while a 2D hcb net was formed using dimethylacetamide (DMA). Similarly for the later class of lanthanides, Dy3+, Ho3+, Er3+, Tm3+, Yb3+ and Lu3+, a 2D hcb net was formed when dimethylacetamide (DMA) was used. However, the formation of a crystalline product with DMF was possible only when DMSO was added together for these lanthanides, and they yielded 2D structures despite the usage of DMF...
December 7, 2017: Dalton Transactions: An International Journal of Inorganic Chemistry
Catherine King, Lorraine Harper
Purpose of review With established immunosuppressant treatment regimens for anti-neutrophil cytoplasm antibody-associated vasculitides (AAV), prognosis has significantly improved. The mainstay of treatment still comprises high-dose corticosteroids and cyclophosphamide for severe forms, although rituximab is being increasingly utilised instead of cyclophosphamide as induction therapy. AAV patients experience an excess of infections, malignancies and cardiovascular events as compared to the general population, which is a combination of the systemic inflammatory process associated with vasculitis and the adverse events from treatment...
2017: Current Treatment Options in Rheumatology
Yuanman Tang, Qiuping Liu, Ying Liu, Linli Zhang, Wei Ding
Various classes of plant pathogenesis-related proteins have been identified in the past several decades. PR-Q, a member of the PR3 family encoding chitinases, has played an important role in regulating plant resistance and preventing pathogen infection. In this paper, we functionally characterized NtPR-Q in tobacco plants and found that the overexpression of NtPR-Q in tobacco Yunyan87 resulted in higher resistance to Ralstonia solanacearum inoculation. Surprisingly, overexpression of NtPR-Q led to the activation of many defense-related genes, such as salicylic acid (SA)-responsive genes NtPR1a/c, NtPR2 and NtCHN50, JA-responsive gene NtPR1b and ET production-associated genes NtACC Oxidase and NtEFE26...
2017: Frontiers in Plant Science
Xuanru Lin, Li Yang, Gang Wang, Fuming Zi, Haimeng Yan, Xing Guo, Jing Chen, Qingxiao Chen, Xi Huang, Yi Li, Enfan Zhang, Wenjun Wu, Yang Yang, Donghua He, Jingsong He, Zhen Cai
Multiple myeloma (MM) is a malignant plasma disease closely associated with inflammation. In MM bone marrow microenvironment, bone marrow stromal cells (BMSCs) are the primary source of interleukin-6 (IL-6) secretion, which promotes the proliferation and progression of MM cells. However, it is still unknown how the microenvironment stimulates BMSCs to secrete IL-6. Interleukin-32 (IL-32) is a newly identified pro-inflammatory factor. It was reported that in solid tumors, IL-32 induces changes in other inflammatory factors including IL-6, IL-10, and TNF-α...
November 3, 2017: Oncotarget
Juyoung Yoo, Ho Jae Kim, Sung Soo Ahn, Seung Min Jung, Jason Jungsik Song, Yong-Beom Park, Sang-Won Lee
OBJECTIVES: We applied the ACR/EULAR 2017 provisional classification criteria for granulomatosis with polyangiitis (GPA) to 150 Korean patients with previously diagnosed antineutrophil cytoplasmic antibody (ANCA)-associated vasculitis (AAV) and investigated how many patients with AAV were reclassified as GPA. METHODS: We included patients with 30 GPA, 30 eosinophilic GPA (EGPA) and 90 microscopic polyangiitis (MPA) patients. Patients can be classified as GPA, when the sum of scores is more than 5...
November 27, 2017: Clinical and Experimental Rheumatology
Rongfu Zhou, Litian Lin, Chunmeng Liu, Pieter Dorenbos, Ye Tao, Yan Huang, Hongbin Liang
A series of Ln-doped KSrPO4 (Ln = Ce3+, Eu3+, Eu2+, Pr3+) phosphors are prepared through a high-temperature solid-state method. The KSrPO4 compound is confirmed to possess a β-K2SO4 structure with the Pnma group by Rietveld refinement, and the temperature-dependent lattice parameters are investigated with the powder X-ray diffraction results at different temperatures. Ce3+ and Eu3+ ions are introduced to probe the crystal field strength (CFS) and the lanthanide site symmetry by using VUV-UV-vis spectroscopy...
November 27, 2017: Dalton Transactions: An International Journal of Inorganic Chemistry
Evan S O'Brien, M Tuan Trinh, Rose L Kann, Jia Chen, Giselle A Elbaz, Amrita Masurkar, Timothy L Atallah, Maria V Paley, Nilam Patel, Daniel W Paley, Ioannis Kymissis, Andrew C Crowther, Andrew J Millis, David R Reichman, X-Y Zhu, Xavier Roy
The controlled introduction of impurities into the crystal lattice of solid-state compounds is a cornerstone of materials science. Intercalation, the insertion of guest atoms, ions or molecules between the atomic layers of a host structure, can produce novel electronic, magnetic and optical properties in many materials. Here we describe an intercalation compound in which the host [Co6Te8(P(n)Pr3)6][C60]3, formed from the binary assembly of atomically precise molecular clusters, is a superatomic analogue of traditional layered atomic compounds...
December 2017: Nature Chemistry
Aya Kawasaki, Keita Yamashita, Fumio Hirano, Ken-Ei Sada, Daisuke Tsukui, Yuya Kondo, Yoshitaka Kimura, Kurumi Asako, Shigeto Kobayashi, Hidehiro Yamada, Hiroshi Furukawa, Kenji Nagasaka, Takahiko Sugihara, Kunihiro Yamagata, Takayuki Sumida, Shigeto Tohma, Hajime Kono, Shoichi Ozaki, Seiichi Matsuo, Hiroshi Hashimoto, Hirofumi Makino, Yoshihiro Arimura, Masayoshi Harigai, Naoyuki Tsuchiya
ETS proto-oncogene 1, transcription factor (ETS1) is involved in various immune responses. Genome-wide association studies on systemic lupus erythematosus in Chinese populations identified the association of ETS1 polymorphism in 3' untranslated region, rs1128334A, which was associated with lower ETS1 expression. In view of substantial sharing of susceptibility genes across multiple autoimmune diseases, we examined whether ETS1 is associated with a rare autoimmune rheumatic disease, anti-neutrophil cytoplasmic antibody (ANCA)-associated vasculitis (AAV)...
October 5, 2017: Journal of Human Genetics
Paul A Nakamura, Andy A Shimchuk, Shibing Tang, Zhizhi Wang, Kole DeGolier, Sheng Ding, Thomas A Reh
Regulation of rod gene expression has emerged as a potential therapeutic strategy to treat retinal degenerative diseases like retinitis pigmentosa (RP). We previously reported on a small molecule modulator of the rod transcription factor Nr2e3, Photoregulin1 (PR1), that regulates the expression of photoreceptor-specific genes. Although PR1 slows the progression of retinal degeneration in models of RP in vitro, in vivo analyses were not possible with PR1. We now report a structurally unrelated compound, Photoregulin3 (PR3) that also inhibits rod photoreceptor gene expression, potentially though Nr2e3 modulation...
November 17, 2017: ELife
Hiroyuki Ono, Seiji Kishi, Taizo Inagaki, Masako Mizusawa, Fumi Kishi, Sakiya Yoshimoto, Masanori Tamaki, Masanori Minato, Sayo Ueda, Taichi Murakami, Kojiro Nagai, Hideharu Abe, Toshio Doi
No abstract text is available yet for this article.
July 2017: KI Reports
Ksenia Maximova, Tom Venken, Nathalie Reuter, Joanna Trylska
Proteinase 3 (PR3) is a neutrophil serine protease present in cytoplasmic granules but also expressed at the neutrophil surface where it mediates proinflammatory effects. Studies of the underlying molecular mechanisms have been hampered by the lack of inhibitors of the PR3 membrane anchorage. Indeed while there exist inhibitors of the catalytic activity of PR3, its membrane interfacial binding site (IBS) is distinct from its catalytic site. The IBS has been characterized both by mutagenesis experiments and molecular modeling...
November 10, 2017: Biochimica et Biophysica Acta
Tiffany Fan, Jeffrey Macaraeg, Toufik Mahfood Haddad, Holly Bacon, Duc Le, Mohsin Mirza, Carrie Valenta, Tammy Wichman
INTRODUCTION: Levamisole-induced pseudovasculitis should be considered in patients with inconsistent anti-neutrophil cytoplasmic antibodies (ANCA) pattern and history of cocaine use. CASE PRESENTATION: A 50-year-old man presented to the emergency department with symptoms of bilateral pulmonary emboli. His hospital course was complicated by multiple end organ failure, which improved dramatically with prednisone. Although he was diagnosed previously with granulomatosis with polyangiitis due to positive proteinase 3 (PR3), myeloperoxidase (MPO), perinuclear anti-neutrophil cytoplasmic antibodies (P-ANCA) and cytoplasmic anti-neutrophil cytoplasmic antibodies (C-ANCA) markers, his longstanding cocaine use and history of skin ulcers, thrombotic events, and febrile illnesses suggested a diagnosis of levamisole-induced pseudovasculitis instead...
February 2017: WMJ: Official Publication of the State Medical Society of Wisconsin
Jun Yang, Lin-Peng Yao, Mengjie Dong, Qin Xu, Jun Zhang, Wan-Wen Weng, Feng Chen
BACKGROUND: This study sought to investigate the clinical characteristics and outcomes of propylthiouracil (PTU)-induced antineutrophil cytoplasmic antibody (ANCA)-associated vasculitis in patients with Graves' disease. METHODS: Sixteen patients diagnosed with PTU-induced ANCA-associated vasculitis in our hospital from January 2010 to June 2017 were analyzed retrospectively. RESULTS: All sixteen patients with PTU-induced ANCA-associated vasculitis were female...
October 31, 2017: Thyroid: Official Journal of the American Thyroid Association
Nikolaos Tsoureas, Jennifer C Green, F Geoffrey N Cloke
The reaction of the bis(pentalene)dititanium complex Ti2(μ:η(5),η(5)-Pn(†))2 (Pn(†) = C8H4(1,4-Si(i)Pr3)2) with the N-heterocyclic carbene 1,3,4,5-tetramethylimidazol-2-ylidene results in intramolecular C-H activation of one of the (i)Pr methyl groups of a Pn(†) ligand and formation of a "tucked-in" bridging hydride complex. The "tuck-in" process is reversed by the addition of hydrogen, which yields a dihydride featuring terminal and bridging hydrides.
October 30, 2017: Chemical Communications: Chem Comm
Katherine R Martin, Magali Pederzoli-Ribeil, Emeline Pacreau, Sabrina S Burgener, Albert Dahdah, Céline Candalh, Evelyne Lauret, Marc Foretz, Luc Mouthon, Bruno Lucas, Nathalie Thieblemont, Charaf Benarafa, Pierre Launay, Véronique Witko-Sarsat
Proteinase 3 (PR3) is a myeloid serine protease expressed in neutrophils, monocytes, and macrophages. PR3 has a number of well-characterized proinflammatory functions, including cleaving and activating chemokines and controlling cell survival and proliferation. When presented on the surface of apoptotic neutrophils, PR3 can disrupt the normal anti-inflammatory reprogramming of macrophages following the phagocytosis of apoptotic cells. To better understand the function of PR3 in vivo, we generated a human PR3 transgenic mouse (hPR3Tg)...
October 27, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
Feliu Maseras, Ignacio Funes, David Nelson
Density functional theory (DFT) calculations have been used to study the oxidative addition of aryl halides to [Ni(PMe3)4]. The formation of NiI versus NiII has been rationalised through the study of two different pathways, both of which proceed via [Ni(PMe3)3]. [NiX(PMe3)3] forms via an open-shell singlet transition state with concommitant formation of an aryl radical, while [Ni(Ar)X(PMe3)2] is produced via SN2-type oxidative addition followed by phosphine dissociation. A microkinetic model was used to show that these data are consistent with the experimentally-observed ratios of NiI and NiII...
October 20, 2017: Chemistry: a European Journal
Andrea Cervi, Dylan Kelly, Iakovina Alexopoulou, Nader Khalidi
PURPOSE: We report the case of a 59-year-old man with chronic hepatitis B and C infection presenting with acute kidney injury and enterococcus faecalis-infective endocarditis (IE). An elevated proteinase-3 (PR3)-ANCA and pauci-immune glomerulonephritis (GN) on renal biopsy were discovered, corresponding to ANCA-mediated GN. We conducted a literature review to assess the role of ANCA in IE and treatment implications. METHODS: On systematic review of the literature, we found five previous cases whereby IE caused by streptococcus and bartonella species were related to ANCA vasculitis-associated GN...
2017: Clinical Nephrology. Case Studies
Narumon Keorochana, Kanaspana Klanarongran, Kantang Satayasoontorn, Sumapa Chaiamnuay
The purpose of this study was to describe a case of necrobiotic xanthogranuloma scleritis in a 53-year-old male with unilateral progressive visual loss, scleritis, prolonged fever, and multiple mononeuropathy. Scleral biopsy showed necrosis with small abscess, and the pathological tissues revealed submucosal infiltration of mononucleated foamy histiocytes (xanthoma cells), hemosiderin-laden macrophages, neutrophils, lymphocytes, plasma cells, and erythrocytes without Touton giant cells or cholesterol clefts...
2017: International Medical Case Reports Journal
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