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https://www.readbyqxmd.com/read/28993279/anti-scorpion-venom-activity-of-thapsia-garganica-methanolic-extract-histopathological-and-biochemical-evidences
#1
Btissam Bouimeja, Moulay Abdelmonaim El Hidan, Oulaid Touloun, Mehdi Ait Laaradia, Loubna Ait Dra, Noureddine El Khoudri, Abderrahman Chait, Ali Boumezzough
ETHNOPHARMACOLOGICAL RELEVANCE: Thapsia garganica, is a herbal medicine traditionally used as diuretic, emetic and purgative. It is also used as anti-scorpion venom in Morocco; however, its protective effects against scorpion venom remain elusive. AIM OF THE STUDY: The present study was undertaken to evaluate anti-venom activity of T. garganica in vivo through histological and biochemical studies. MATERIALS AND METHODS: Methanolic leaves extract of T...
October 6, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28991483/vasoactive-intestinal-peptide-nanomedicine-for-the-management-of-inflammatory-bowel-disease
#2
Dulari Jayawardena, Arivarasu N Anbazhagan, Grace Guzman, Pradeep K Dudeja, Hayat Onyuksel
Inflammatory bowel disease (IBD) is a chronic relapsing disorder of the intestine, with increasing incidence worldwide. At present, the management of IBD is an unmet medical need due to the ineffectiveness of currently available drugs in treating all patients and there is strong demand for novel therapeutics. In this regard, vasoactive intestinal peptide, a potent anti-inflammatory endogenous hormone, has shown promise in managing multiple immune disorders in animal models. However, when administered in the free form, VIP undergoes rapid degradation in vivo, and with continuous infusion, causes severe dose limiting side effects...
October 9, 2017: Molecular Pharmaceutics
https://www.readbyqxmd.com/read/28960840/selection-of-dna-aptamer-that-blocks-the-fibrillogenesis-of-a-proteolytic-amyloidogenic-fragment-of-%C3%AE-2-m
#3
Kanon Fukasawa, Yuichiro Higashimoto, Yukio Ando, Yoshihiro Motomiya
Dialysis-related amyloidosis (DRA) is a severe complication of hemodialysis that results in progressive destruction of bones and joints. Elevated concentrations of the β2 -microglobulin (β2 m) level in the serum of subjects on hemodialysis promote the formation of amyloid fibrils in osteoarticular tissues. β2 m lacking the N-terminal six residues of the mature protein (ΔN6β2 m) constitutes 25-30% of β2 m in ex vivo DRA amyloid. Unlike full-length wild-type β2 m, ΔN6β2 m forms amyloid fibrils at neutral pH in vitro...
September 28, 2017: Therapeutic Apheresis and Dialysis
https://www.readbyqxmd.com/read/28946525/diastasis-of-rectus-abdominis-muscles-in-low-back-pain-patients
#4
Lucie Doubkova, Ross Andel, Ingrid Palascakova-Springrova, Pavel Kolar, Jiri Kriz, Alena Kobesova
BACKGROUND: Abdominal muscles are important spinal stabilizers and its poor coordination, as seen in diastasis of rectus abdominis (DRA), may contribute to chronic low back pain (LBP). However, this has not yet been studied directly. OBJECTIVES: To conduct a pilot study to examine the association between DRA and LBP. METHODS: Using a digital caliper, standard clinical DRA measurement was performed in 55 participants with and 54 without chronic LBP...
September 8, 2017: Journal of Back and Musculoskeletal Rehabilitation
https://www.readbyqxmd.com/read/28934241/hla-dr7-and-hla-dq2-transgenic-mouse-strains-tested-as-a-model-system-for-ximelagatran-hepatotoxicity
#5
Hanna Lundgren, Klara Martinsson, Karin Cederbrant, Johan Jirholt, Daniel Mucs, Katja Madeyski-Bengtson, Said Havarinasab, Per Hultman
The oral thrombin inhibitor ximelagatran was withdrawn in the late clinical trial phase because it adversely affected the liver. In approximately 8% of treated patients, drug-induced liver injury (DILI) was expressed as transient alanine transaminase (ALT) elevations. No evidence of DILI had been revealed in the pre-clinical in vivo studies. A whole genome scan study performed on the clinical study material identified a strong genetic association between the major histocompatibility complex alleles for human leucocyte antigens (HLA) (HLA-DR7 and HLA-DQ2) and elevated ALT levels in treated patients...
2017: PloS One
https://www.readbyqxmd.com/read/28929275/current-pesticide-dietary-risk-assessment-in-light-of-comparable-animal-study-noaels-after-chronic-and-short-termed-exposure-durations
#6
Jürg A Zarn, Caitlyn D O'Brien
Dietary risk assessment (DRA) of pesticides includes the estimation of chronic and acute exposures from crop residues, but assesses acute exposures only for pesticides with an acute reference dose (ARfD). Acute estimation uses high percentiles of food consumption surveys which are considerably higher than per capita lifetime averaged food consumption values which are used for chronic estimations. Assessing acute risks only for pesticides with an ARfD tacitly assumes that chronic risk assessment covers also intermittent occurring exposures which could significantly exceed chronic estimates...
September 19, 2017: Archives of Toxicology
https://www.readbyqxmd.com/read/28889256/structural-and-functional-diversity-arising-from-intra-and-inter-haplotype-combinations-of-duplicated-dqa-and-b-loci-within-the-ovine-mhc
#7
Keith T Ballingall, Isabelle Lantier, Helen Todd, Frederic Lantier, Mara Rocchi
In sheep, the A and B loci encoding the α and β chains of the classical class II MHC molecules are DRA and DRB and DQA and DQB. Previous analyses described the duplication of the DQA and DQB genes. The majority of haplotypes include DQA1 and DQA2 loci, however, in a number of haplotypes, DQA1 appears absent and these haplotypes have been described as DQA1 null. In these haplotypes, the DQA2 locus is found in combination with a second locus which appeared more closely related to DQA2 than DQA1, hence the description of this locus as DQA2-like...
September 9, 2017: Immunogenetics
https://www.readbyqxmd.com/read/28881265/new-variants-near-rhoj-and-c2-hla-dra-region-and-susceptibility-to-endometriosis-in-the-polish-population-the-genome-wide-association-study
#8
Marta Sobalska-Kwapis, Beata Smolarz, Marcin Słomka, Tomasz Szaflik, Ewa Kępka, Bartosz Kulig, Anna Siewierska-Górska, Grzegorz Polak, Hanna Romanowicz, Dominik Strapagiel, Krzysztof Szyłło
OBJECTIVE: Endometriosis is a common gynaecological disease, associated with severe pelvic pain and reduced fertility; however, molecular mechanisms remain largely unknown. Genome-wide association studies (GWAS) are able to identify genetic loci, which can play significant role during endometriosis development. AIM: The study aimed at localisation of new genes and chromosomal loci, the nucleotide variants of which determine the level of susceptibility to endometriosis...
September 1, 2017: European Journal of Obstetrics, Gynecology, and Reproductive Biology
https://www.readbyqxmd.com/read/28862321/expression-of-hla-dra-and-cd74-mrna-in-whole-blood-during-the-course-of-complicated-and-uncomplicated-staphylococcus-aureus-bacteremia
#9
Gunlög Rasmussen, Sara Cajander, Anders Bäckman, Jan Källman, Bo Söderquist, Kristoffer Strålin
To improve management of Staphylococcus aureus bacteremia (SAB), better understanding of host-pathogen interactions is needed. In vitro studies have shown that S. aureus bacteria induce dose-dependent immunosuppression that is evidenced by reduced expression of major histocompatibility complex (MHC) class II on antigen presenting cells. Thus, the aim of this study was to determine whether expression of the MHC class II-related genes HLA-DRA and CD74 is more greatly reduced in complicated SAB, with its probable higher loads of S...
October 2017: Microbiology and Immunology
https://www.readbyqxmd.com/read/28831346/donor-site-morbidity-after-dieap-flap-breast-reconstruction-a-2-year-postoperative-computed-tomography-comparison
#10
Christoffer Aam Ingvaldsen, Gerhard Bosse, Georg Karl Mynarek, Thomas Berg, Tyge Tind Tindholdt, Kim Alexander Tønseth
The study was undertaken to provide a more complete picture of donor-site morbidity following the deep inferior epigastric artery perforator (DIEAP) flap harvest in breast reconstruction. Most studies evaluating this subject have been performed using ultrasonography. Computed tomography (CT) might provide valuable information. METHODS: In 14 patients who were reconstructed with a DIEAP flap, donor-site morbidity was assessed by comparing routine preoperative CT abdomen with CT abdomen performed 2 years postoperatively...
July 2017: Plastic and Reconstructive Surgery. Global Open
https://www.readbyqxmd.com/read/28815047/whole-blood-rna-transcript-based-models-can-predict-clinical-response-in-two-large-independent-clinical-studies-of-patients-with-advanced-melanoma-treated-with-the-checkpoint-inhibitor-tremelimumab
#11
Philip Friedlander, Karl Wassmann, Alan M Christenfeld, David Fisher, Chrisann Kyi, John M Kirkwood, Nina Bhardwaj, William K Oh
BACKGROUND: Tremelimumab is an antibody that blocks CTLA-4 and demonstrates clinical efficacy in a subset of advanced melanoma patients. An unmet clinical need exists for blood-based response-predictive gene signatures to facilitate clinically effective and cost-efficient use of such immunotherapeutic interventions. METHODS: Peripheral blood samples were collected in PAXgene® tubes from 210 treatment-naïve melanoma patients receiving tremelimumab in a worldwide, multicenter phase III study (discovery dataset)...
2017: Journal for Immunotherapy of Cancer
https://www.readbyqxmd.com/read/28807052/whole-blood-rna-transcript-based-models-can-predict-clinical-response-in-two-large-independent-clinical-studies-of-patients-with-advanced-melanoma-treated-with-the-checkpoint-inhibitor-tremelimumab
#12
Philip Friedlander, Karl Wassmann, Alan M Christenfeld, David Fisher, Chrisann Kyi, John M Kirkwood, Nina Bhardwaj, William K Oh
BACKGROUND: Tremelimumab is an antibody that blocks CTLA-4 and demonstrates clinical efficacy in a subset of advanced melanoma patients. An unmet clinical need exists for blood-based response-predictive gene signatures to facilitate clinically effective and cost-efficient use of such immunotherapeutic interventions. METHODS: Peripheral blood samples were collected in PAXgene® tubes from 210 treatment-naïve melanoma patients receiving tremelimumab in a worldwide, multicenter phase III study (discovery dataset)...
August 15, 2017: Journal for Immunotherapy of Cancer
https://www.readbyqxmd.com/read/28795233/bicarbonate-transport-during-enamel-maturation
#13
REVIEW
Kaifeng Yin, Michael L Paine
Amelogenesis (tooth enamel formation) is a biomineralization process consisting primarily of two stages (secretory stage and maturation stage) with unique features. During the secretory stage, the inner epithelium of the enamel organ (i.e., the ameloblast cells) synthesizes and secretes enamel matrix proteins (EMPs) into the enamel space. The protein-rich enamel matrix forms a highly organized architecture in a pH-neutral microenvironment. As amelogenesis transitions to maturation stage, EMPs are degraded and internalized by ameloblasts through endosomal-lysosomal pathways...
August 9, 2017: Calcified Tissue International
https://www.readbyqxmd.com/read/28774247/severe-destructive-tendinopathy-in-the-wrist-due-to-dialysis-related-amyloidosis
#14
Dongmin Kim, In Cheul Choi, Jong Woong Park
Dialysis-related amyloidosis (DRA) is a specific subtype of amyloidosis with several clinical presentations. Herein we report a case of severe destructive tendinopathy around the wrist associated with long-standing hemodialysis (HD). A 63-year-old female patient who had been on regular HD for 23 years suffered from symptoms of pain and a palpable mass around the wrist. Magnetic resonance imaging showed an ill-defined soft tissue mass around the extensor tendons that partially invaded the wrist joint. We performed surgical excision and tenolysis for the mass...
September 2017: Journal of Hand Surgery Asian-Pacific Volume
https://www.readbyqxmd.com/read/28771573/human-leucocyte-antigen-hla-dr-gene-expression-is-reduced-in-sepsis-and-correlates-with-impaired-tnf%C3%AE-response-a-diagnostic-tool-for-immunosuppression
#15
Martin Sebastian Winkler, Anne Rissiek, Marion Priefler, Edzard Schwedhelm, Linda Robbe, Antonia Bauer, Corinne Zahrte, Christian Zoellner, Stefan Kluge, Axel Nierhaus
BACKGROUND: Sepsis is defined as a dysregulated immune response to infection. Impaired immune response in sepsis, often described as endotoxin tolerance, is characterized by unresponsiveness of monocytes on lipopolysaccharide (LPS) stimulation to release tumor necrosis factor α (TNFα). Furthermore, decreased monocyte surface protein expression of human leucocyte antigen DR (HLA-DR) is a marker for changes of the innate immune response during sepsis. Quantitative polymerase chain reaction (qPCR) and flow-cytometry (FACS) have been used to measure protein or gene expression of HLA-DR...
2017: PloS One
https://www.readbyqxmd.com/read/28757522/cattle-with-the-bola-class-ii-drb3-0902-allele-have-significantly-lower-bovine-leukemia-proviral-loads
#16
Takumi Hayashi, Hirohisa Mekata, Satoshi Sekiguchi, Yumi Kirino, Shuya Mitoma, Kazuyuki Honkawa, Yoichiro Horii, Junzo Norimine
The bovine MHC (BoLA) class II DRB3 alleles are associated with polyclonal expansion of lymphocytes caused by bovine leukemia virus (BLV) infection in cattle. To examine whether the DRB3*0902 allele, one of the resistance-associated alleles, is associated with the proviral load, we measured BLV proviral load of BLV-infected cattle and clarified their DRB3 alleles. Fifty-seven animals with DRB3*0902 were identified out of 835 BLV-infected cattle and had significantly lower proviral load (P<0.000001) compared with the rest of the infected animals, in both Japanese Black and Holstein cattle...
September 12, 2017: Journal of Veterinary Medical Science
https://www.readbyqxmd.com/read/28754892/a-cell-based-high-throughput-screening-assay-system-for-inhibitor-compounds-of-antigen-presentation-by-hla-class-ii-molecule
#17
Nobuo Watanabe, Yusuke Suzuki, Takahisa Yonezu, Yuki Nakagawa, Takashi Shiina, Noriaki Hirayama, Sadaki Inokuchi, Shigeaki Inoue
A number of autoimmune diseases are associated with the genotypes of human leukocyte antigen class II (HLA), some of which present peptides derived from self-proteins, resulting in clonal expansion of self-reactive T cells. Therefore, selective inhibition of self-peptide loading onto such disease-associated HLA could ameliorate the diseases. To effectively identify such compounds, in this study, we established, for the first time, a cell- and 96-well microplate-based high-throughput screening system for inhibitors of antigen presentation...
July 28, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28707365/use-of-3-d-digital-subtraction-rotational-angiography-during-cardiac-catheterization-of-infants-and-adults-with-congenital-heart-diseases
#18
Sushitha Surendran, B Rush Waller, Lucas Elijovich, Vijaykumar Agrawal, Andrew Kuhls-Gilcrist, Jason Johnson, Thomas Fagan, Shyam K Sathanandam
OBJECTIVE: To compare image quality, radiation and contrast doses required to obtain 3D-Digital subtraction rotational angiography (3D-DSRA) with 3D-Digital rotational angiography (3D-DRA) in infants (children ≤ 2 years of age) and adults with congenital heart diseases (ACHD). BACKGROUND: 3D-DRA can be performed with radiation doses comparable to bi-plane cine-angiography. However, 3D-DRA in infants requires a large contrast volume. The resolution of 3D-DRA performed in ACHD patients is limited by their soft tissue density...
July 14, 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/28692472/quantification-of-immune-dysregulation-by-next-generation-polymerase-chain-reaction-to-improve-sepsis-diagnosis-in-surgical-patients
#19
Raquel Almansa, Alicia Ortega, Ana Ávila-Alonso, Maria Heredia-Rodríguez, Silvia Martín, Diana Benavides, Marta Martín-Fernandez, Lucia Rico, César Aldecoa, Jesús Rico, Iñigo López de Cenarruzabeitia, Juan Beltrán de Heredia, Esther Gomez-Sanchez, Marta Aragón, Cristina Andrés, Dolores Calvo, David Andaluz-Ojeda, Pilar Liu, Francisco Blanco-Antona, Lydia Blanco, Jose Ignacio Gómez-Herreras, Eduardo Tamayo, Jesus F Bermejo-Martin
OBJECTIVES: To quantify immunological dysfunction in surgical patients with presence/absence of sepsis using a droplet digital polymerase chain reaction (ddPCR) transcriptomic analysis. The study also aims to evaluate this approach for improving identification of sepsis in these patients. BACKGROUND: Immune dysregulation is a central event in sepsis. Quantification of the expression of immunological genes participating in the pathogenesis of sepsis could represent a new avenue to improve its diagnosis...
July 7, 2017: Annals of Surgery
https://www.readbyqxmd.com/read/28687085/regulation-of-early-growth-response-2-expression-by-secreted-frizzled-related-protein-1
#20
Kelly J Gregory, Stephanie M Morin, Sallie S Schneider
BACKGROUND: Secreted frizzled-related protein 1 (SFRP1) expression is down-regulated in a multitude of cancers, including breast cancer. Loss of Sfrp1 also exacerbates weight gain as well as inflammation. Additionally, loss of SFRP1 enhances TGF-β signaling and the downstream MAPK pathway. TGF-β has been shown to increase the expression of Early Growth Response 2 (EGR2), a transcription factor implicated in immune function in a wide variety of cell types. The work described here was initiated to determine whether SFRP1 modulation affects TGF-β mediated EGR2 expression in mammary tissues as well as macrophage polarization...
July 7, 2017: BMC Cancer
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