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https://www.readbyqxmd.com/read/28343355/anti-c1q-autoantibodies-as-markers-of-renal-involvement-in-childhood-onset-systemic-lupus-erythematosus
#1
Cécile Picard, Jean-Christophe Lega, Bruno Ranchin, Pierre Cochat, Natalia Cabrera, Nicole Fabien, Alexandre Belot
BACKGROUND: Childhood-onset systemic lupus erythematosus (cSLE) is rare, and considered more severe than its adult-onset counterpart. Lupus nephritis (LN) occurs more frequently in children, accounting for higher long-term morbidity and mortality compared with adults. Thus, reliable biological markers are needed to predict disease course. This study aimed to investigate the capacity of anti-C1q autoantibodies (Abs) to predict renal flare and global disease activity in cSLE patients, and association with disease activity and kidney involvement...
March 25, 2017: Pediatric Nephrology: Journal of the International Pediatric Nephrology Association
https://www.readbyqxmd.com/read/28343254/dynamic-measurements-of-cervical-neural-foramina-during-neck-movements-in-asymptomatic-young-volunteers
#2
Victor Chang, Azam Basheer, Timothy Baumer, Daniel Oravec, Colin P McDonald, Michael J Bey, Stephen Bartol, Yener N Yeni
PURPOSE: Neural foraminal dimensions are considered important in nerve root compression and development of cervical radiculopathy, but baseline data regarding their range during normal motion are not available. An in vivo study of cervical foraminal motion was conducted to characterize normal 3D dynamic foraminal dimensions during physiological neck motion and compare between different tasks and intervertebral segments. METHODS: Biplane X-ray imaging and computed tomography-based markerless tracking were used to measure foraminal height (FH) and width (FW) from five asymptomatic subjects during neck axial rotation and extension...
March 25, 2017: Surgical and Radiologic Anatomy: SRA
https://www.readbyqxmd.com/read/28342541/continuous-gradient-temperature-raman-spectroscopy-and-differential-scanning-calorimetry-of-n-3dpa-and-dha-from-100-to-10%C3%A2-c
#3
C Leigh Broadhurst, Walter F Schmidt, Julie K Nguyen, Jianwei Qin, Kuanglin Chao, Steven R Aubuchon, Moon S Kim
Docosahexaenoic acid (DHA, 22:6n-3) is exclusively utilized in fast signal processing tissues such as retinal, neural and cardiac. N-3 docosapentaenoic acid (n-3DPA, 22:5n-3), with just one less double bond, is also found in the marine food chain yet cannot substitute for DHA. Gradient temperature Raman spectroscopy (GTRS) applies the temperature gradients utilized in differential scanning calorimetry (DSC) to Raman spectroscopy, providing a straightforward technique to identify molecular rearrangements that occur near and at phase transitions...
March 22, 2017: Chemistry and Physics of Lipids
https://www.readbyqxmd.com/read/28340469/characterization-and-expression-patterns-of-key-c4-photosynthetic-pathway-genes-in-bread-wheat-triticum-aestivum-l-under-field-conditions
#4
Daoura Goudia Bachir, Iqbal Saeed, Quanhao Song, Tay Zar Linn, Liang Chen, Yin-Gang Hu
Wheat is a C3 plant with relatively low photosynthetic efficiency and is a potential target for C4 photosynthetic pathway engineering. Here we reported the characterization of four key C4 pathway genes and assessed their expression patterns and enzymatic activities at three growth stages in flag leaves of 59 bread wheat genotypes. The C4-like genes homologous to PEPC, NADP-ME, MDH, and PPDK in maize were identified in the A, B, and D sub-genomes of bread wheat, located on the long arms of chromosomes 3 and 5 (TaPEPC), short arms of chromosomes 1 and 3 (TaNADP-ME), long arms of chromosomes 1 and 7 (TaMDH), and long arms of chromosome 1 (TaPPDK), respectively...
March 9, 2017: Journal of Plant Physiology
https://www.readbyqxmd.com/read/28340427/identification-and-characterization-of-a-%C3%AE-defensin-gene-involved-in-the-immune-defense-response-of-channel-catfish-ictalurus-punctatus
#5
Jieyao Zhu, Hong Wang, Jun Wang, Xingli Wang, Shuang Peng, Yi Geng, Kaiyu Wang, Pin Ouyang, Zhiqiong Li, Xiaoli Huang, Defang Chen
Antimicrobial peptides are small peptides that play important roles in a host's innate immune response. As an important antimicrobial peptide, β-defensin widely distribute in mammals, insects and plants with broad-spectrum antimicrobial activity. In this study, the β-defensin gene of the channel catfish, Ictalurus punctatus, was cloned, sequenced, and subjected to a bioinformatic analysis. The β-defensin gene of the channel catfish contains three exons and two introns, and encodes a precursor peptide consisting of two domains: a signal peptide of 24 amino acid residues and a mature peptide of 43 amino acid residues...
March 21, 2017: Molecular Immunology
https://www.readbyqxmd.com/read/28340364/cervical-facet-force-analysis-after-disc-replacement-versus-fusion
#6
Vikas V Patel, Zachary R Wuthrich, Kirk C McGilvray, Matthew C Lafleur, Emily M Lindley, Derrick Sun, Christian M Puttlitz
BACKGROUND: Cervical total disc replacement was developed to preserve motion and reduce adjacent-level degeneration relative to fusion, yet concerns remain that total disc replacement will lead to altered facet joint loading and long-term facet joint arthrosis. This study is intended to evaluate changes in facet contact force, pressure and surface area at the treated and superior adjacent levels before and after discectomy, disc replacement, and fusion. METHODS: Ten fresh-frozen human cadaveric cervical spines were potted from C2 to C7 with pressure sensors placed into the facet joints of C3-C4 and C4-C5 via slits in the facet capsules...
March 18, 2017: Clinical Biomechanics
https://www.readbyqxmd.com/read/28338574/rigid-occipitocervical-instrumented-fusion-for-atlantoaxial-instability-in-an-18-month-old-toddler-with-brachytelephalangic-chondrodysplasia-punctata-a-case-report
#7
Hiroki Oba, Jun Takahashi, Kyoko Takano, Yuji Inaba, Mitsuo Motobayashi, Gen Nishimura, Shugo Kuraishi, Masayuki Shimizu, Shota Ikegami, Toshimasa Futatsugi, Masashi Uehara, Tomoki Kosho, Hiroyuki Kato, Koki Uno
STUDY DESIGN: Case report OBJECTIVE.: We report here on an 18-month-old boy with brachytelephalangic chondrodysplasia punctata (BCDP), whose atlantoaxial instability was successfully managed with occipitocervical instrumented fusion (OCF) using screw and rod instrumentations. SUMMARY OF BACKGROUND DATA: Recently, there have been a number of reports on BCDP with early onset of cervical myelopathy. Surgical OCF is a vital intervention to salvage affected individuals from the life-threatening morbidity...
March 23, 2017: Spine
https://www.readbyqxmd.com/read/28338219/human-orf-complicated-by-epidermolysis-bullosa-acquisita
#8
E Zuelgaray, C Salle de Chou, J Gottlieb, M Battistella, M D Vignon-Pennamen, M Bagot, F Guibal, J D Bouaziz
Orf is a DNA parapoxvirus transmitted to humans by contact with infected goats and sheep. Many complications have been reported after Orf infection including erythema multiforme. A few cases of auto-immune bullous dermatosis complicating Orf disease have been reported to date, usually characterized by tense blisters eruptions with or without mucosal involvement, linear deposition of C3, IgG and/or IgA along the basement membrane and negativity of indirect immunofluorescence analysis and ELISA assays (performed in 4 of 11 reported cases) against target antigens of bullous pemphigoid, mucous membrane pemphigoid or epidermolysis bullosa acquisita, except one case of mucosal pemphigoid with antilaminin-332 antibodies...
March 24, 2017: British Journal of Dermatology
https://www.readbyqxmd.com/read/28338213/biochemical-model-of-c3-photosynthesis-applied-to-wheat-at-different-temperatures
#9
Viridiana Silva-Pérez, Robert T Furbank, Anthony G Condon, John R Evans
We examined the effects of leaf temperature on the estimation of maximal Rubisco capacity (Vcmax ) from gas exchange measurements of wheat leaves using a C3 photosynthesis model. Cultivars of spring wheat (Triticum aestivum (L)) and triticale (x Triticosecale Wittmack) were grown in a greenhouse or in the field and measured at a range of temperatures under controlled conditions in a growth cabinet (2 and 21 % O2 ) or in the field using natural diurnal variation in temperature, respectively. Published Rubisco kinetic constants for tobacco did not describe the observed CO2 response curves well as temperature varied...
March 24, 2017: Plant, Cell & Environment
https://www.readbyqxmd.com/read/28337179/characterization-of-a-novel-nicotine-degradation-gene-cluster-ndp-in-sphingomonas-melonis-ty-and-its-evolutionary-analysis
#10
Haixia Wang, Xiao-Yang Zhi, Jiguo Qiu, Longxiang Shi, Zhenmei Lu
Sphingomonas melonis TY utilizes nicotine as a sole source of carbon, nitrogen, and energy through a variant of the pyridine and pyrrolidine pathways (VPP). A 31-kb novel nicotine-degrading gene cluster, ndp, in strain TY exhibited a different genetic organization with the vpp cluster in strains Ochrobactrum rhizosphaerae SJY1 and Agrobacterium tumefaciens S33. Genes in vpp were separated by a 20-kb interval sequence, while genes in ndp were localized together. Half of the homolog genes were in different locus in ndp and vpp...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28336951/determination-of-leaf-carbon-isotope-discrimination-in-c4-plants-under-variable-n-and-water-supply
#11
Hao Yang, Qiang Yu, Wen-Ping Sheng, Sheng-Gong Li, Jing Tian
Understanding the mechanisms underlying variations in carbon isotope discrimination (Δ) in C4 plants is critical for predicting the C3/C4 ratio in C3/C4 mixed grassland. The value of Δ is determined by bundle sheath leakiness (Ф) and the ratio of intercellular to ambient CO2 concentration (C i /C a ). Leaf nitrogen concentration (N leaf ) is considered a driver of Δ in C4 plants. However, little is known about how N leaf affects Ф and C i /C a , and subsequently Δ. Here leaf carbon isotope composition, N leaf , Ф, and leaf gas exchange were measured in Cleistogenes squarrosa, a dominant C4 species in the Inner Mongolia grassland...
March 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28336111/hepatoprotective-effects-of-curcumin-in-rats-after-bile-duct-ligation-via-downregulation-of-rac1-and-nox1
#12
Zohreh-Al-Sadat Ghoreshi, Razieh Kabirifar, Fatemeh Safari, Alireza Karimollah, Ali Moradi, Ebrahim Eskandari-Nasab
OBJECTIVES: New evidence has proven the hepatoprotective activity of curcumin; however, its underlying mechanisms remain to be elucidated. The aim of this study was to investigate the protective effect of curcumin on hepatic damage by measuring the antioxidant capacity and expression level of Rho-related C3 botulinum toxin substrate (Rac1), Rac1-Guanosine triphosphate (Rac1-GTP), and NADPH oxidase 1(NOX1) in biliary duct-ligated (BDL)-fibrotic rat model. METHODS: Wistar rats weighing 200 to 250 g were divided into four groups (n = 8 for each): sham group, sham+Cur group (received curcumin 100 mg/kg daily), BDL+Cur group, and BDL group...
April 2017: Nutrition
https://www.readbyqxmd.com/read/28334671/fast-tracking-the-molecular-weight-changes-of-humic-substances-in-coagulation-flocculation-processes-via-fluorescence-eem-parafac
#13
Bilal Aftab, Jin Hur
The removal of a commercial humic acid (HA) and changes in its chemical composition were examined for coagulation/flocculation (C/F) processes based on jar tests using two different coagulants at a wide range of pH. ZrCl4 showed a better performance in eliminating HA than Al2SO4 with the same removal rates at lower dosages. The highest removal rates were found at a neutral pH range (5.0-6.5). The HA was further decomposed into three different humic-like components (C1, C2, and C3) by excitation emission matrix coupled with parallel factor analysis (EEM-PARAFAC)...
March 20, 2017: Chemosphere
https://www.readbyqxmd.com/read/28334358/ranges-of-cervical-intervertebral-disc-deformation-during-an-in-vivo-dynamic-flexion-extension-of-the-neck
#14
Yan Yu, Haiqing Mao, Jing-Sheng Li, Tsung-Yuan Tsai, Liming Cheng, Kirkham B Wood, Guoan Li, Thomas D Cha
While abnormal loading is widely believed to cause cervical spine disc diseases, in-vivo cervical disc deformation during dynamic neck motion has not been well delineated. This study investigated the range of cervical disc deformation during an in-vivo functional flexion-extension of the neck. Ten asymptomatic human subjects were tested using a combined dual fluoroscopic imaging system and MRI based 3D modeling technique. Overall disc deformation was determined using the changes of the space geometry between upper and lower endplates of each intervertebral segment (C3/4, C4/5, C5/6 and C6/7)...
March 23, 2017: Journal of Biomechanical Engineering
https://www.readbyqxmd.com/read/28334051/dissecting-the-relationships-of-igg-subclasses-and-complements-in-membranous-lupus-nephritis-and-idiopathic-membranous-nephropathy
#15
Woong Na, Kijong Yi, Young Soo Song, Moon Hyang Park
Membranous lupus nephritis (MLN) and idiopathic membranous nephropathy (IMN) are kidney diseases with similar morphology, but distinct etiologies, both producing glomeruli with immune deposits. Immunoglobulins and complements, the main components of the deposits, can be detected by immunofluorescence (IF) microscopy. Previous researches characterized the immune deposits only individually, but not the interactions between them. To study these relationships we analyzed an IF profile of IgG subclasses and complements (IgG1, IgG2, IgG3, IgG4, C3, C1q, and C4) in 53 and 95 cases of biopsy-confirmed MLNs and IMNs, respectively, mainly using information theory and Bayesian networks...
2017: PloS One
https://www.readbyqxmd.com/read/28333902/proteflazid%C3%A2-and-local-immunity-in-diseases-caused-by-human-papillomavirus-herpesvirus-and-mixed-urogenital-infections
#16
Vjacheslav Kaminsky, Viktor Chernyshov, Oleksandr Grynevych, Vasil Benyuk, Alla Kornatskaya, Miroslava Shalko, Igor Usevich, Oleg Revenko, Maxim Shepetko, Ludmila Solomakha
Reporting of clinical trials results for Proteflazid® in the drug formulation suppositories and vaginal swabs soaked in the solution of the drug to the local immunity of the female reproductive tract. AIM: The aim of study was to examine the state of local immunity in the reproductive tract of women with sexually transmitted diseases caused by human papillomavirus, herpes viruses (Type 1, 2) and mixed infection (herpes viruses + chlamydia). MATERIALS AND METHODS: The trials involved 216 women with viral sexually transmitted diseases: Cervical Dysplasia associated with papillomavirus infection (HPV) (Group 1); Herpes genitalis type 1 (HSV- 1) and type 2 (HSV-1) (Group 2); mixed infection - HSV-1, HSV-2 and chlamydia (Group 3)...
March 21, 2017: Polski Merkuriusz Lekarski: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/28333263/loss-of-luteotropic-prostaglandin-e-plays-an-important-role-in-the-regulation-of-luteolysis-in-women
#17
Junko Nio-Kobayashi, Masataka Kudo, Noriaki Sakuragi, Toshihiko Iwanaga, W Colin Duncan
STUDY QUESTION: Do intraluteal prostaglandins (PG) contribute to luteal regulation in women? SUMMARY ANSWER: Prostaglandin E (PGE), which is produced in human granulosa-lutein cells stimulated with luteotropic hCG, exerts similar luteotropic effects to hCG, and the expression of PG synthetic and metabolic enzymes in the human CL is driven toward less PGE but more prostaglandin F (PGF) during luteolysis. WHAT IS KNOWN ALREADY: Uterine PGF is a major luteolysin in many non-primate species but not in women...
March 17, 2017: Molecular Human Reproduction
https://www.readbyqxmd.com/read/28332660/a-phosphine-mediated-sequential-annulation-process-of-2-tosylaminochalcones-with-mbh-carbonates-to-construct-functionalized-aza-benzobicyclo-4-3-0-derivatives
#18
Qinglong Zhang, Yannan Zhu, Hongxing Jin, You Huang
A novel phosphine mediated sequential annulation process to construct functionalized aza-benzobicyclo[4.3.0] derivatives has been developed involving a one-pot sequential catalytic and stoichiometric process, which generates a series of benzobicyclo[4.3.0] compounds containing one quaternary center with up to 94% yield and 20 : 1 dr value. In this reaction, MBH carbonates act as 1,2,3-C3 synthons.
March 23, 2017: Chemical Communications: Chem Comm
https://www.readbyqxmd.com/read/28332617/molecular-epidemiology-of-acute-hemorrhagic-conjunctivitis-caused-by-coxsackie-a-type-24-variant-in-china-2004-2014
#19
Li Zhang, Na Zhao, Xiaodan Huang, Xiuming Jin, Xingyi Geng, Ta-Chien Chan, Shelan Liu
To understand control interventions, the molecular epidemiology of acute hemorrhagic conjunctivitis (AHC) was investigated from 2004 to 2014.A total of 613,485 AHC cases (annualized cases 55,771) with two deaths were included. Our findings showed that AHC was reported in all provinces, predominantly in Southern and Eastern China. The incidence rates were highest in 2007 (5.65/100,000) and 2010 (21.78/100,000) respectively. A clear seasonal pattern was identified with a peak from August to October. AHC cases occurred in all age groups; however, five to 14 years was the predominant group [23...
March 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28332435/mild-acute-intermittent-hypoxia-improves-respiratory-function-in-unanesthetized-rats-with-midcervical-contusion
#20
Kun-Ze Lee, Shu-Chi Chiang, Yu-Jie Li
BACKGROUND: Mild intermittent hypoxia has been considered a potential approach to induce respiratory neuroplasticity. OBJECTIVE: The purpose of the present study was to investigate whether mild acute intermittent hypoxia can improve breathing function in a clinically relevant spinal cord injury animal model. METHODS: Adult male rats received laminectomy or unilateral contusion at the C3-C4 spinal cord using a MASCIS Impactor (height: 6.25 or 12...
April 2017: Neurorehabilitation and Neural Repair
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