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https://www.readbyqxmd.com/read/28712746/formation-of-an-angular-aromatic-polyketide-from-a-linear-anthrene-precursor-via-oxidative-rearrangement
#1
Guixi Gao, Xiangyang Liu, Min Xu, Yemin Wang, Fei Zhang, Lijun Xu, Jin Lv, Qingshan Long, Qianjin Kang, Hong-Yu Ou, Ying Wang, Jürgen Rohr, Zixin Deng, Ming Jiang, Shuangjun Lin, Meifeng Tao
Bacterial aromatic polyketides are a group of natural products synthesized by polyketide synthases (PKSs) that show diverse structures and biological activities. They are structurally subclassified into linear, angular, and discoid aromatic polyketides, the formation of which is commonly determined by the shaping and folding of the poly-β-keto intermediates under the concerted actions of the minimal PKSs, cyclases and ketoreductases. Murayaquinone, found in several streptomycetes, possesses an unusual tricyclic angular aromatic polyketide core containing a 9,10-phenanthraquinone...
July 6, 2017: Cell Chemical Biology
https://www.readbyqxmd.com/read/28705287/generalized-discoid-lupus-erythematosus-as-the-presenting-sign-of-small-cell-lung-carcinoma
#2
Tania M Gonzalez Santiago, David A Wetter, Garrett C Lowe, Gabriel F Sciallis
A 46-year-old woman with a 30 pack-year smoking history presented with a worsening eruption on the left cheek that failed to improve with metronidazole gel. The cutaneous eruption spread to most of her face and did not respond to a brief tapering course of prednisone. During the initial evaluation at our institution, approximately 6 weeks after the onset of the cutaneous eruption, the patient had erythematous, crusted plaques on her face and scalp (Figure 1A); they were also present on the V-area of the anterior aspect of the neck and upper region of the chest, the shoulders, and the arms, with isolated lesions on the trunk and legs...
2017: Skinmed
https://www.readbyqxmd.com/read/28693936/sirenomelia-associated-with-discoid-adrenal-and-lumbar-meningocoele-an-autopsy-report
#3
Nelofar Islam, Bappa Mandal, Ram Narayan Das, Goutam Bera, Suchandra Mukherjee, Uttara Chatterjee
Mermaid syndrome or Sirenomelia is a rare congenital deformity in which the legs are fused and bears resemblance to mermaid's tail. It carries a poor prognosis, due to associated urogenital and gastrointestinal abnormalities. An early antenatal diagnosis using Magnetic Resonance Imaging (MRI) can help in termination of pregnancy. Embryologically, it is considered as the extreme form of caudal regression syndrome due to the persistence of vitelline artery. Here, we report a case of Sirenomelia associated with bilateral renal agenesis along with the rare findings of discoid adrenal, lumbar meningocoele and abnormalities of the hand...
June 17, 2017: Pathology, Research and Practice
https://www.readbyqxmd.com/read/28688458/dating-the-middle-paleolithic-deposits-of-la-quina-amont-charente-%C3%A2-france-using-luminescence-methods
#4
Marine Frouin, Christelle Lahaye, Hélène Valladas, Thomas Higham, André Debénath, Anne Delagnes, Norbert Mercier
The site of La Quina Amont, located in the Charente region, is one of the most important sites in southwestern France for studying major changes in human behaviors from the Middle Paleolithic (MP) to the Early Upper Paleolithic (EUP). Extensively excavated over the past 50 years, numerous dating studies have been focused on the Upper Paleolithic deposits using radiocarbon on bone collagen and thermoluminescence (TL) on heated flints; however, the Mousterian levels remain undated due to the scarcity of suitable materials...
August 2017: Journal of Human Evolution
https://www.readbyqxmd.com/read/28681085/reflectance-confocal-microscopic-evaluation-of-nonmelanocytic-lip-lesions
#5
Işın Sinem Bağcı, Mehmet Salih Gürel, Ayşe Esra Koku Aksu, Aslı Turgut Erdemir, Esma İnan Yüksel, Yeliz Karakoca Başaran
Lips display various benign and malignant lesions. Considering their functional and cosmetic importance, noninvasive diagnostic methods are required. In vivo reflectance confocal microscopy (RCM) has already been reported to be useful in the evaluation of various skin lesions. The aim of this study was to define the RCM features of nonmelanocytic lip lesions, compare them with healthy lip, and demonstrate the applicability of RCM as a noninvasive diagnostic method for nonmelanocytic lip lesions. Sixty-seven patients with premalignant/malignant, inflammatory, and infectious lip lesions and twenty-one healthy volunteers were included in the study...
July 5, 2017: Lasers in Medical Science
https://www.readbyqxmd.com/read/28670251/genetic-similarities-and-differences-between-discoid-and-systemic-lupus-erythematosus-patients-within-the-polish-population
#6
Katarzyna Skonieczna, Rafał Czajkowski, Sebastian Kaszewski, Mariusz Gawrych, Aneta Jakubowska, Tomasz Grzybowski
INTRODUCTION: Many studies have shown that some SNPs might be a risk factor for systemic lupus erythematosus (SLE), but little is known about potential susceptibility loci of the skin types of the disease. Discoid lupus erythematosus (DLE) is the most common form of the cutaneous lupus erythematosus. Nevertheless, a genetic contribution to DLE is not fully recognized. AIM: We aimed to analyze three SNPs located in the STAT4 (rs7574865), ITGAM (rs1143679) and TNXB (rs1150754) genes in both DLE and SLE patients from Poland...
June 2017: Postȩpy Dermatologii i Alergologii
https://www.readbyqxmd.com/read/28655477/systematic-review-of-the-long-term-surgical-outcomes-of-discoid-lateral-meniscus
#7
REVIEW
Yong Seuk Lee, Seow Hui Teo, Jin Hwan Ahn, O-Sung Lee, Seung Hoon Lee, Je Ho Lee
PURPOSE: To evaluate the surgical treatment of the discoid lateral meniscus (DLM) with long-term follow-up and to search which factors are related to good clinical or radiological outcomes. METHODS: Search was performed using a MEDLINE, EMBASE, and Cochrane database, and each of the selected studies was evaluated for methodological quality using a risk of bias (ROB) covering 7 criteria. Clinical and radiological outcomes with more than 5 years of follow-up were evaluated after surgical treatment of DLM...
June 24, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/28652106/show-me-your-tenent-setae-and-i-tell-you-who-you-are-telling-the-story-of-a-neglected-character-complex-with-phylogenetic-signals-using-leiodidae-coleoptera-as-a-case-study
#8
Pedro Gnaspini, Caio Antunes-Carvalho, Alfred F Newton, Richard A B Leschen
The tarsal setae in 97 species of Leiodidae and eight outgroups were examined using SEM imaging and dissections. Modified adhesive setae present in males are referred to as "male tenent setae" (MTS). In most cases, dilated tarsomeres were associated with MTS, which were always present on the protarsi and sometimes the mesotarsi. MTS are reported for the first time on the mesotarsi of Leptodirini and on the metatarsi in two genera of Sogdini. Contrary to reports in the literature, the reduction in the number of the MTS bearing mesotarsomeres is considered a derived condition...
June 23, 2017: Arthropod Structure & Development
https://www.readbyqxmd.com/read/28644829/swapping-the-n-and-c-terminal-domains-of-human-apolipoprotein-e3-and-ai-reveals-insights-into-their-structure-activity-relationship
#9
Mark T Lek, Siobanth Cruz, Nnejiuwa U Ibe, Wendy H J Beck, John K Bielicki, Paul M M Weers, Vasanthy Narayanaswami
Apolipoprotein (apo) E3 and apoAI are exchangeable apolipoproteins that play a dominant role in regulating plasma lipoprotein metabolism. ApoE3 (299 residues) is composed of an N-terminal (NT) domain bearing a 4-helix bundle and a C-terminal (CT) domain bearing a series of amphipathic α-helices. ApoAI (243 residues) also comprises a highly helical NT domain and a less structured CT tail. The objective of this study was to understand their structural and functional role by generating domain swapped chimeras: apoE3-NT/apoAI-CT and apoAI-NT/apoE-CT...
2017: PloS One
https://www.readbyqxmd.com/read/28631630/diagnostic-value-of-immunohistochemistry-staining-of-bcl-2-cd34-cd20-and-cd3-for-distinction-between-discoid-lupus-erythematosus-and-lichen-planus-in-the-skin
#10
Mazaher Ramezani, Bita-Sadat Hashemi, Sedigheh Khazaei, Mansour Rezaei, Ali Ebrahimi, Masoud Sadeghi
BACKGROUND: Cluster of differentiation (CD) markers is a classification system for monoclonal antibodies against cell surface molecules on leukocytes and antigens from other cells. AIMS: The aim of this study is to evaluate immunohistochemical markers in patients with discoid lupus erythematosus (DLE) and lichen planus (LP) and correlation of these markers in two groups and with the normal group in the West of Iran. SETTINGS AND DESIGN: Analytical cross-sectional study...
April 2017: Indian Journal of Pathology & Microbiology
https://www.readbyqxmd.com/read/28626188/discoid-lupus-erythematosus-complicated-with-pregnancy-induced-hemophagocytic-syndrome
#11
Hideto Takada, Naoki Kimura, Yoko Yoshihashi-Nakazato, Kimito Kawahata, Hitoshi Kohsaka
A 35-year-old woman with discoid lupus erythematosus (DLE) was admitted at 11 weeks' gestation with a persistent fever. Laboratory studies revealed pancytopenia, elevated liver enzymes, and hyperferritinemia. Bone marrow aspiration confirmed the diagnosis of hemophagocytic syndrome (HPS). She had no findings of infection or active systemic lupus erythematosus. The administration of high-dose corticosteroids resolved the clinical and laboratory findings. She delivered a healthy baby at 35 weeks' gestation. This case suggests that DLE can be a predisposing factor for pregnancy-induced HPS...
2017: Internal Medicine
https://www.readbyqxmd.com/read/28606712/development-of-classification-criteria-for-discoid-lupus-erythematosus-results-of-a-delphi-exercise
#12
Scott A Elman, Cara Joyce, Filippa Nyberg, Fukumi Furukawa, Mark Goodfield, Minoru Hasegawa, Branka Marinovic, Jacek C Szepietowski, Jan Dutz, Victoria P Werth, Joseph F Merola
BACKGROUND: No classification criteria currently exist for discoid lupus erythematosus (DLE), which has led to problematic heterogeneity in both observational and interventional research efforts. OBJECTIVES: We sought to develop DLE classification criteria based on consensus of international expert opinion of relevant stakeholders in the field. METHODS: Using a Delphi consensus process and nominal group techniques, potential items for classification criteria were generated...
August 2017: Journal of the American Academy of Dermatology
https://www.readbyqxmd.com/read/28593837/rhadinorhynchus-oligospinosus-n-sp-acanthocephala-rhadinorhynchidae-from-mackerels-in-the-pacific-ocean-off-peru-and-related-rhadinorhynchids-in-the-pacific-with-notes-on-metal-analysis
#13
Omar M Amin, Richard A Heckmann
Specimens of a new species of Rhadinorhynchus Lühe, 1911 are described from the chub mackerel Scomber japonicus (Scombridae) and the Chilean Jack mackerel Trachurus murphyi (Carangidae) (possibly a subspecies of Trachurus symmetricus) from the Pacific Ocean off the Peruvian coast at the Port of Chicama, La Libertad. Specimens of Rhadinorhynchus oligospinosus n. sp. are somewhat small having 11-14 rows of alternating proboscis hooks with 20-22 hooks each with posteriormost hooks in a continuous ring. Ventral hooks are robust with prominent roots but dorsal hooks are slender and shorter with discoid roots...
2017: Parasite: Journal de la Société Française de Parasitologie
https://www.readbyqxmd.com/read/28593703/effect-of-ethnicity-on-clinical-presentation-and-risk-of-antiphospholipid-syndrome-in-roma-and-caucasian-patients-with-systemic-lupus-erythematosus-a-multicenter-cross-sectional-study
#14
Victoria Manzano-Gamero, Alfredo J Pardo-Cabello, José A Vargas-Hitos, Mónica Zamora-Pasadas, Nuria Navarrete-Navarrete, José M Sabio, Laura Jáimez-Gámiz, Raquel Ríos-Fernandez, Norberto Ortego-Centeno, M Mar Ayala-Gutierrez, Enrique de Ramón, Agustín Colodro-Ruíz, Luisa Micó-Giner, María J Castillo-Palma, Ángel Robles-Marhuenda, Juan de Dios Luna-Del Castillo, Juan Jiménez-Alonso
AIM: To determine if there are ethnic differences in the prevalence of antiphospholipid syndrome (APS), clinical presentation and autoantibody profile between Roma and Caucasian patients with systemic lupus erythematosus (SLE). METHOD: A cross-sectional study was conducted including data from Roma and Caucasian SLE patients consecutively attending six hospitals in Spain. Socio-demographic characteristics, prevalence of APS, clinical and analytical features of SLE and APS were compared between ethnic groups...
June 7, 2017: International Journal of Rheumatic Diseases
https://www.readbyqxmd.com/read/28592796/immunochemical-approach-for-monitoring-of-structural-transition-of-apoa-i-upon-hdl-formation-using-novel-monoclonal-antibodies
#15
Hitoshi Kimura, Shiho Mikawa, Chiharu Mizuguchi, Yuki Horie, Izumi Morita, Hiroyuki Oyama, Takashi Ohgita, Kazuchika Nishitsuji, Atsuko Takeuchi, Sissel Lund-Katz, Kenichi Akaji, Norihiro Kobayashi, Hiroyuki Saito
Apolipoprotein A-I (apoA-I) undergoes a large conformational reorganization during remodeling of high-density lipoprotein (HDL) particles. To detect structural transition of apoA-I upon HDL formation, we developed novel monoclonal antibodies (mAbs). Splenocytes from BALB/c mice immunized with a recombinant human apoA-I, with or without conjugation with keyhole limpet hemocyanin, were fused with P3/NS1/1-Ag4-1 myeloma cells. After the HAT-selection and cloning, we established nine hybridoma clones secreting anti-apoA-I mAbs in which four mAbs recognize epitopes on the N-terminal half of apoA-I while the other five mAbs recognize the central region...
June 7, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28586369/synthesis-and-biochemical-characterization-of-egf-receptor-in-a-water-soluble-membrane-model-system
#16
Tiffany M Scharadin, Wei He, Yianni Yiannakou, Alexey A Tomilov, Matthew Saldana, Gino A Cortopassi, Kermit L Carraway, Matthew A Coleman, Paul T Henderson
ErbB (Erythroblastic Leukemia Viral Oncogene Homolog) receptor tyrosine kinases are critical for tissue development and maintenance, and frequently become oncogenic when mutated or overexpressed. In vitro analysis of ErbB receptor kinases can be difficult because of their large size and poor water solubility. Here we report improved production and assembly of the correctly folded full-length EGF receptor (EGFR) into nanolipoprotein particles (NLPs). NLPs are ~10 nm in diameter discoidal cell membrane mimics composed of apolipoproteins surrounding a lipid bilayer...
2017: PloS One
https://www.readbyqxmd.com/read/28573816/lipid-internal-dynamics-probed-in-nanodiscs
#17
Denis Martinez, Marion Decossas, Julia Kowal, Lukas Frey, Henning Stahlberg, Erick Dufourc, Roland Riek, Birgit Habenstein, Stefan Bibow, Antoine Loquet
Nanodiscs offer a very promising tool to incorporate membrane proteins into native-like lipid bilayers and an alternative to liposomes to maintain protein functions and protein-lipid interactions in a soluble nanoscale object. The activity of the incorporated membrane protein appears to be correlated to its dynamics in the lipid bilayer and by protein-lipid interactions. These two parameters depend on the lipid internal dynamics surrounded by the lipid-encircling discoidal scaffold protein that might differ from more unrestricted lipid bilayers observed in vesicles or cellular extracts...
June 1, 2017: Chemphyschem: a European Journal of Chemical Physics and Physical Chemistry
https://www.readbyqxmd.com/read/28566911/intense-pulsed-light-and-q-switched-1-064-nm-neodymium-doped-yttrium-aluminum-garnet-laser-treatment-for-the-scarring-lesion-of-discoid-lupus-erythematosus
#18
Yun Sun Byun, Jee Hee Son, Yong Se Cho, Bo Young Chung, Hee Jin Cho, Chun Wook Park, Hye One Kim
Discoid lupus erythematosus (DLE) is a chronic form of cutaneous lupus that can cause permanent scarring. Treatment of DLE includes protection from sunlight and artificial sources of ultraviolet light, as well as systemic and topical medications. The first-line standard therapies are antimalarials and topical steroids. Other systemic therapies include systemic steroid, azathioprine, dapsone, and immunosuppressive agents. Topical tacrolimus and pimecrolimus have also been evaluated. Recent studies reported that several treatments, including pulsed dye laser, CO2 laser, intense pulsed light (IPL), and 1,064-nm long-pulse neodymium-doped yttrium aluminum (Nd:YAG) have been used for the cosmetic treatment of DLE...
June 2017: Annals of Dermatology
https://www.readbyqxmd.com/read/28544820/delays-to-care-in-pediatric-lupus-patients-from-the-childhood-arthritis-and-rheumatology-research-alliance-legacy-registry
#19
Tamar B Rubinstein, Wenzhu B Mowrey, Norman T Ilowite, Dawn M Wahezi
OBJECTIVES: Prompt treatment for lupus is important to prevent morbidity. A potential barrier to early treatment of pediatric lupus is delayed presentation to a pediatric rheumatologist. To better understand factors contributing to delayed presentation among pediatric lupus patients, we examined differences in demographic and clinical characteristics of lupus patients within the Childhood Arthritis and Rheumatology Research Alliance (CARRA) Legacy Registry with regards to time between symptom onset and presentation to a pediatric rheumatologist...
May 23, 2017: Arthritis Care & Research
https://www.readbyqxmd.com/read/28509118/anti-glomerular-basement-membrane-disease-accompanied-by-systemic-lupus-erythematosus-presenting-central-nervous-system-involvement
#20
Hirohito Sugawara, Hideki Takizawa, Yoshinosuke Shimamura, Norihito Moniwa, Koichi Hasegawa, Yayoi Ogawa
We report a case of rapidly progressive glomerulonephritis caused by anti-glomerular basement membrane (GBM) disease accompanied by systemic lupus erythematosus (SLE) presenting central nervous system involvement in a 32-year-old Japanese male. He was admitted to our hospital because of a 3-week history of fever and rapidly failing renal function requiring hemodialysis (HD). Laboratory tests showed anti-GBM antibody elevation with a value of 16,385 units/ml. On day 85, he had generalized tonic-clonic seizure...
May 2017: CEN Case Reports
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