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https://www.readbyqxmd.com/read/29029527/targeted-first-line-therapies-for-advanced-colorectal-cancer-a-bayesian-meta-analysis
#1
Yassine Ridouane, Gilberto Lopes, Geoffrey Ku, Hasan Masud, Benjamin Haaland
BACKGROUND: Colorectal cancer is common and deadly. First-line treatments for patients with metastatic disease include FOLFIRI and FOLFOX, which have been combined with anti-EGFR or anti-VEGF antibodies to achieve benefit in selected populations. However, optimal therapy remains unclear. RESULTS: Fifteen publications on 10 trials were identified. There was a lack of decisive evidence that FOLFIRI or FOLFOX impact efficacy of either anti-EGFR or anti-VEGF, across mutational status groups...
September 12, 2017: Oncotarget
https://www.readbyqxmd.com/read/29016136/specific-unbinding-forces-between-mutated-human-p-selectin-glycoprotein-ligand-1-and-viral-protein-1-measured-using-force-spectroscopy
#2
Chen-Chu Wang, Kundan Sivashanmugan, Chung-Ku Chen, Jian-Ren Hong, Wei-I Sung, Jiunn-Der Liao, Yuh-Shyong Yang
Protein tyrosine sulfation (PTS) is a key modulator of extracellular protein-protein interaction (PPI), which regulates principal biological processes. For example, the capsid protein VP1 of enterovirus 71 (EV71) specifically interacts with sulfated P-selectin glycoprotein ligand-1 (PSGL-1) to facilitate virus invasion. Currently available methods cannot be used to directly observe PTS-induced PPI. In this study, atomic force microscopy was used to measure the interaction between sulfated or mutated PSGL-1 and VP1...
October 13, 2017: Journal of Physical Chemistry Letters
https://www.readbyqxmd.com/read/28990103/silver-nanoparticles-coupled-to-anti%C3%A2-egfr-antibodies-sensitize-nasopharyngeal-carcinoma-cells-to-irradiation
#3
Dahai Yu, Yan Zhang, Hong Lu, Di Zhao
Radiotherapy is the major form of treatment for head and neck carcinoma, a malignant tumour of epithelial origin. The identification of agents, which can be co‑administered in order to sensitize these tumours to radiotherapy, has become a major focus of investigations. In the present study, a novel 20 nm nanocomposite, Ag/C225, was constructed, which consisted of silver nanoparticles (AgNPs) conjugated to an epidermal growth factor receptor‑specific antibody (C225). Physical characterization demonstrated that the Ag/C225 nanoparticles were spherical and dispersed well in water...
October 4, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28950916/%C3%AE-carboxymuconolactone-decarboxylase-a-novel-cell-cycle-related-basal-body-protein-in-the-early-branching-eukaryote-trichomonas-vaginalis
#4
Wei-Hung Cheng, Kuo-Yang Huang, Po-Jung Huang, Chi-Ching Lee, Yuan-Ming Yeh, Fu-Man Ku, Rose Lin, Mei-Ling Cheng, Cheng-Hsun Chiu, Petrus Tang
BACKGROUND: γ-Carboxymuconolactone decarboxylase (CMD) participates in the β-ketoadipate pathway, which catalyzes aromatic compounds to produce acetyl- or succinyl-CoA, in prokaryotes and yeast. Our previous study demonstrated that expression of a CMD homologue that contains two signatures (dualCMD) is negatively regulated by iron in Trichomonas vaginalis. However, we were not able to identify the components of the β-ketoadipate pathway in the parasite's genome. These observations prompted us to investigate the biological functions of this novel CMD homologue in T...
September 26, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28924447/passive-blood-anaphylaxis-subcutaneous-immunoglobulins-are-a-cause-of-ongoing-passive-anaphylactic-reaction
#5
Przemyslaw Zdziarski, Andrzej Gamian, Jacek Majda, Agnieszka Korzeniowska-Kowal
BACKGROUND: Allergic, especially anaphylactic, reactions during immunoglobulin replacement therapy are rare, but their pathophysiology and classification remain ambiguous. Recent findings show positive results of skin tests with commercially available immunoglobulins, but target antigens and responsible compounds of the tested immunoglobulins have not been strictly identified. CASE DESCRIPTION AND FINDINGS: Four adult patients with recently diagnosed common variable immunodeficiency qualified for standard subcutaneous immunoglobulin replacement therapy regimen...
2017: Allergy, Asthma, and Clinical Immunology
https://www.readbyqxmd.com/read/28699537/recent-advances-in-polymeric-nanosystems-for-treating-cutaneous-melanoma-and-its-metastasis
#6
Yi-Ping Chou, Yin-Ku Lin, Chun-Han Chen, Jia-You Fang
Melanoma shows a high possibility of mortality after it metastasizes because of its aggressive nature. Although there are several options for anti-melanoma therapy, this skin malignancy is resistant to some therapies. Chemotherapy, biochemotherapy, immunotherapy, and adoptive cell therapy have failed to exhibit a significant amelioration in overall survival. Nanomedicine provides an opportunity to improve the efficiency of the anti-melanoma regimen. Nanoparticles for treating melanoma provide the advantages over conventional therapies such as drug solubility increment, drug stability enhancement, epithelium permeability and bioavailability amelioration, half-life prolonging, tumor targeting, and side effect minimization...
July 10, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/28544337/growth-curves-of-normal-serum-total-ige-levels-throughout-childhood-a-quantile-analysis-in-a-birth-cohort
#7
Chiara Sacco, Serena Perna, Donatella Vicari, Marco Alfò, Carl-Peter Bauer, Ute Hoffman, Johannes Forster, Fred Zepp, Antje Schuster, Ulrich Wahn, Thomas Keil, Susanne Lau, Paolo Maria Matricardi
BACKGROUND: Previous studies of serum total IgE (t-IgE) were not able to discriminate well-enough atopic from non-atopic subjects, that is, with or without serum-specific IgE antibodies to allergens. OBJECTIVES: To model growth curves of the total IgE levels in children without atopic sensitization (hereafter defined as "normal" t-IgE levels) and to test their usefulness in predicting atopic sensitization. METHODS: The German Multicentre Allergy Study (MAS), a birth cohort with 1314 recruited newborns, began in 1990 and examined the participants until age 20 years...
September 2017: Pediatric Allergy and Immunology
https://www.readbyqxmd.com/read/28476984/optical-detection-of-ca-15-3-breast-cancer-antigen-using-cds-quantum-dot
#8
Venugopal Elakkiya, Mridula Prakash Menon, Devaraj Nataraj, Pullithadathil Biji, Rajendran Selvakumar
The present study focus on optical sensing of breast cancer antigen 15.3 (CA 15.3) using cadmium sulphide quantum dot (CdS-QD) in saline and serum samples spiked with antigen. The surface of CdS-QD was modified by cysteamine capping followed by tagging of CA 15.3 antibody. The samples were characterised using UV-visible absorption spectroscopy (UV-VIS Spectroscopy), Fourier transform infrared spectroscopy (FTIR), high-resolution transmission electron microscopy (HRTEM) attached with energy-dispersive X-ray spectroscopy, phase contrast inverted epi-fluorescence microscopy and photoluminescence (PL) spectrophotometry (EDS)...
April 2017: IET Nanobiotechnology
https://www.readbyqxmd.com/read/28432705/prognosis-of-infantile-food-protein-induced-enterocolitis-syndrome-in-japan
#9
Mitsuaki Kimura, Masaki Shimomura, Hideaki Morishita, Takaaki Meguro
BACKGROUND: Although serum C-reactive protein (CRP) and the percentage of eosinophils in peripheral blood (Eo) are increased at onset in infants with food protein-induced enterocolitis syndrome (FPIES), the relationship of these laboratory findings to prognosis is presently unknown. METHODS: Correlation of serum CRP and Eo at onset with prognosis was analyzed in 32 patients with FPIES caused by cow's milk (CM). RESULTS: The rate of tolerance acquisition was 18...
April 22, 2017: Pediatrics International: Official Journal of the Japan Pediatric Society
https://www.readbyqxmd.com/read/28422732/molecular-and-serologic-markers-of-hpv-16-infection-are-associated-with-local-recurrence-in-patients-with-oral-cavity-squamous-cell-carcinoma
#10
Chung-Guei Huang, Li-Ang Lee, Chun-Ta Liao, Tzu-Chen Yen, Shu-Li Yang, Yi-Chun Liu, Jung-Chin Li, Yu-Nong Gong, Chung-Jan Kang, Shiang-Fu Huang, Ku-Hao Fang, Kai-Ping Chang, Li-Yu Lee, Chuen Hsueh, Shin-Ru Shih, Kuo-Chien Tsao
Human papillomavirus (HPV) infections predict mortality in Taiwanese patients with oral cavity squamous cell carcinoma (OCSCC). To address their prognostic significance for local recurrence (LR), in this retrospective cohort study we investigated different serologic and molecular markers of HPV 16 infection in 85 consecutive patients with primary OCSCC who received standard treatment and had their sera stored before treatment. Resected tumor specimens were examined with PCR-based assays for HPV 16 E6/E7 mRNA expression...
May 23, 2017: Oncotarget
https://www.readbyqxmd.com/read/28414586/development-and-validation-of-monoclonal-antibody-based-antigen-capture-elisa-for-detection-of-group-a-porcine-rotavirus
#11
Atta Muhammad Memon, Anjuman Ara Bhuyan, Fangzhou Chen, Xiaozhen Guo, Harish Menghwar, Yinxing Zhu, Xugang Ku, Shuhua Chen, Zhonghua Li, Qigai He
Porcine rotavirus-A (PoRVA) is one of the common causes of mild to severe dehydrating diarrhea, leading to losses in weaning and postweaning piglets. A rapid, highly specific, and sensitive antigen-capture enzyme-linked immunosorbent assay (AC-ELISA) was developed for detection of PoRVA, by using VP6 (a highly conserved and antigenic protein of group-A rotavirus)-directed rabbit polyclonal antibodies (capture antibody) and murine monoclonal antibodies (detector antibody). The detection limit of AC-ELISA was found to be equal to that of conventional reverse transcription-polymerase chain reaction (RT-PCR; about 10(2...
May 2017: Viral Immunology
https://www.readbyqxmd.com/read/28348022/increase-in-thyroglobulin-antibody-and-thyroid-peroxidase-antibody-levels-but-not-preterm-birth-rate-in-pregnant-danish-women-upon-iodine-fortification
#12
Sofie Bliddal, Malene Boas, Linda Hilsted, Lennart Friis-Hansen, Anders Juul, Torben Larsen, Ann Tabor, Jens Faber, Dorthe Hansen Precht, Ulla Feldt-Rasmussen
OBJECTIVE: The presence of thyroid antibodies in pregnancy has been associated with preterm birth. In the non-pregnant population, the implementation of the Danish iodine fortification program has increased the prevalence of thyroid antibodies. This study investigated the prevalence of thyroid peroxidase antibodies (TPOAbs) and thyroglobulin antibodies (TgAbs) in pregnant Danish women before, during and after implementation of the iodine fortification program and association with preterm birth...
May 2017: European Journal of Endocrinology
https://www.readbyqxmd.com/read/28330983/%C3%AE-%C3%AE-t-cells-mediate-angiotensin-ii-induced-hypertension-and-vascular-injury
#13
Antoine Caillon, Muhammad Oneeb Rehman Mian, Julio C Fraulob-Aquino, Ku-Geng Huo, Tlili Barhoumi, Sofiane Ouerd, Peter R Sinnaeve, Pierre Paradis, Ernesto L Schiffrin
BACKGROUND: Innate antigen-presenting cells and adaptive immune T cells have been implicated in the development of hypertension. However, the T-lymphocyte subsets involved in the pathophysiology of hypertension remain unclear. A small subset of innate-like T cells expressing the γδ T cell receptor (TCR) rather than the αβ TCR could play a role in the initiation of the immune response in hypertension. We aimed to determine whether angiotensin (Ang) II caused kinetic changes in γδ T cells; deficiency in γδ T cells blunted Ang II-induced hypertension, vascular injury, and T-cell activation; and γδ T cells are associated with human hypertension...
May 30, 2017: Circulation
https://www.readbyqxmd.com/read/28296758/the-incidence-and-clinical-characteristics-by-gender-differences-in-patients-with-kikuchi-fujimoto-disease
#14
In Young Jung, Hea Won Ann, Jung Ju Kim, Se Ju Lee, Jinnam Kim, Hye Seong, Dong Hyun Oh, Yong Chan Kim, Eun Jin Kim, Su Jin Jeong, Nam Su Ku, Jun Yong Choi, Young Goo Song, June Myung Kim
Kikuchi-Fujimoto disease (KFD) is a rare, self-limiting disorder that typically affects the cervical lymph nodes (LNs). Although initially described in young women, KFD also occurs in men. There are no reports on the clinical manifestations and characteristics of male KFD patients. Therefore, this study was conducted to assess the incidence of KFD among males, as well as the most frequent clinical characteristics of these patients. A retrospective, cross-sectional study was performed at a tertiary hospital of patients pathologically confirmed as having KFD from LN biopsy specimens...
March 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28296274/relevance-of-clinical-and-autoantibody-profiles-in-systemic-sclerosis-among-thais
#15
Chingching Foocharoen, Piyakarn Watcharenwong, Sittichai Netwijitpan, Ajanee Mahakkanukrauh, Siraphop Suwannaroj, Ratanavadee Nanagara
OBJECTIVE: Autoantibody profiles in systemic sclerosis (SSc) and their relative clinical association vary between studies. The rate for being anti-topoisomerase-I (ATA) positive and the association with diffuse cutaneous the SSc subset (dcSSc) is higher among Thais than among Caucasians. The objective was to evaluate the relevance of clinical presentation, namely being positive for one or more autoantibodies among Thai SSc patients. METHOD: A retrospective, cohort study was performed among SSc patients over 18 years of age at Srinagarind Hospital, Khon Kaen University, Thailand, during January 2006 to December 2013...
March 10, 2017: International Journal of Rheumatic Diseases
https://www.readbyqxmd.com/read/28275334/clinical-significance-of-an-alloantibody-against-the-kell-blood-group-glycoprotein
#16
Stella Maris Mattaloni, Carine Arnoni, Rosario Céspedes, Claudia Nonaka, Carolina Trucco Boggione, Melina Eliana Luján Brajovich, Andrea Trejo, Néstor Zani, Claudia Silvia Biondi, Lilian Castilho, Carlos Miquel Cotorruelo
BACKGROUND: Kell null (K0) individuals can produce anti-Ku, an antibody against many epitopes in the Kell glycoprotein, after transfusion and/or pregnancy. Since sensitized K0 patients are rare, little is known about anti-Ku clinical relevance and in particular about its association to hemolytic disease of the fetus and newborn. CASE REPORT: This work describes a case of neonatal hyperbilirubinemia due to immune-mediated erythrocyte destruction by an alloantibody directed against the Kell glycoprotein...
January 2017: Transfusion Medicine and Hemotherapy
https://www.readbyqxmd.com/read/28240591/increased-immunoreactivity-against-human-cytomegalovirus-ul83-in-systemic-sclerosis
#17
Emmanouela Marou, Christos Liaskos, Georgios Efthymiou, Efthymios Dardiotis, Alexandros Daponte, Thomas Scheper, Wolfgang Meyer, Georgios Hadjigeorgiou, Dimitrios P Bogdanos, Lazaros I Sakkas
OBJECTIVES: To study immunoreactivity against human cytomegalovirus (HCMV) in systemic sclerosis (SSc), since HCMV has been put forward as a candidate infectious cause. METHODS: Eighty four patients with SSc (67 females; median age 60 years, range 25-81), 30 patients with multiple sclerosis (MS) (23 females; median age 44, range 20-69 years) and 28 healthy controls (NCs), all pre-tested positive for IgG anti-HCMV antibodies, were studied. IgG anti-UL83 HCMV antibodies were tested by western immunoblotting and expressed in arbitrary units (AUs)...
February 27, 2017: Clinical and Experimental Rheumatology
https://www.readbyqxmd.com/read/28176781/rad52-competes-with-ku70-ku86-for-binding-to-s-region-dsb-ends-to-modulate-antibody-class-switch-dna-recombination
#18
Hong Zan, Connie Tat, Zhifang Qiu, Julia R Taylor, Justin A Guerrero, Tian Shen, Paolo Casali
Antibody class-switch DNA recombination (CSR) is initiated by AID-introduced DSBs in the switch (S) regions targeted for recombination, as effected by Ku70/Ku86-mediated NHEJ. Ku-deficient B cells, however, undergo (reduced) CSR through an alternative(A)-NHEJ pathway, which introduces microhomologies in S-S junctions. As microhomology-mediated end-joining requires annealing of single-strand DNA ends, we addressed the contribution of single-strand annealing factors HR Rad52 and translesion DNA polymerase θ to CSR...
February 8, 2017: Nature Communications
https://www.readbyqxmd.com/read/28153851/transverse-myelitis-as-manifestation-of-celiac-disease-in-a-toddler
#19
Hilde Krom, Fleur Sprangers, René van den Berg, Marc Alexander Benninga, Angelika Kindermann
We present a 17-month-old girl with rapidly progressive unwillingness to sit, stand, play, and walk. Furthermore, she lacked appetite, vomited, lost weight, and had an iron deficiency. Physical examination revealed a cachectic, irritable girl with a distended abdomen, dystrophic legs with paraparesis, disturbed sensibility, and areflexia. An MRI scan revealed abnormal high signal intensity on T2-weighted images in the cord on the thoracic level, without cerebral abnormalities, indicating transverse myelitis (TM)...
March 2017: Pediatrics
https://www.readbyqxmd.com/read/28148783/beta-propiolactone-inactivation-of-coxsackievirus-a16-induces-structural-alteration-and-surface-modification-of-viral-capsids
#20
Chen Fan, Xiaohua Ye, Zhiqiang Ku, Liangliang Kong, Qingwei Liu, Cong Xu, Yao Cong, Zhong Huang
Beta-propiolactone (BPL) is an inactivating agent that is widely used in the vaccine industry. However, its effects on vaccine protein antigens and its mechanisms of action remain poorly understood. Here we present cryo-electron microscopy (cryo-EM) structures of BPL-treated coxsackievirus A16 (CVA16) mature virions and procapsids at resolutions of 3.9 Å and 6.5 Å, respectively. Notably, both particles were found to adopt an expanded conformation resembling the 135S-like uncoating intermediate, with characteristic features including an opened 2-fold channel, the externalization of the N terminus of VP1 capsid protein, and the absence of pocket factor...
April 15, 2017: Journal of Virology
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