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https://www.readbyqxmd.com/read/29772554/antibodies-against-gpcr
#1
Carlotto Meyer, Harald Heidecke
G-protein-coupled receptors (GPCRs) are the largest family of receptors in humans. GPCRs are seven-transmembrane receptors that are activated by the binding of a ligand to the extracellular domain. In addition to the endogenous ligands, auto-antibodies (aab) can also bind to the GPCRs. They can activate different and specific cellular pathways which contribute to various diseases. In this review, the authors summarize the knowledge about antibodies targeting GPCRs and their effects and relevance in the pathogenesis of various diseases and their use in clinical diagnostics...
June 1, 2018: Frontiers in Bioscience (Landmark Edition)
https://www.readbyqxmd.com/read/29772545/autoantibodies-against-muscarinic-acetylcholine-receptor-m-3-in-sjogren-s-syndrome-and-corresponding-mouse-models
#2
Xinhua Yu, Gabriela Riemekasten, Frank Petersen
Muscarinic acetylcholine receptor M3 (M3R) is a GPCR on exocrine gland cells involved in fluid secretion. In the last two decades, evidence has been accumulated arguing for a role of autoantibodies (aab) against M3R in the development of Sjögren's syndrome (SS). In this review, we provide an updated overview on this issue and critically discuss the relation between autoimmunity to M3R and SS pathogenesis. Clinical data as well as findings from experimental disease were summarized in categories addressing the presence of aab against M3R in SS patients, the function of anti-M3R aab, the association of aab against M3R with SS-related phenotypes, in vivo pathogenicity of transferred aab against M3R in mice, and mouse models induced via immunization with M3R...
June 1, 2018: Frontiers in Bioscience (Landmark Edition)
https://www.readbyqxmd.com/read/29770867/dietary-supplementation-with-an-amino-acid-blend-enhances-intestinal-function-in-piglets
#3
Dan Yi, Baocheng Li, Yongqing Hou, Lei Wang, Di Zhao, Hongbo Chen, Tao Wu, Ying Zhou, Binying Ding, Guoyao Wu
The traditionally classified nutritionally non-essential amino acids are now known to be insufficiently synthesized for maximal growth and optimal health in piglets. This study determined the effects of dietary supplementation with an amino acid blend (AAB; glutamate:glutamine:glycine:arginine:N-acetylcysteine = 5:2:2:1:0.5) on piglet growth performance and intestinal functions. Sixteen piglets (24-day-old) were randomly assigned to a corn and soybean meal-based diet supplemented with 0.99% alanine (isonitrogenous control) or 1% AAB...
May 16, 2018: Amino Acids
https://www.readbyqxmd.com/read/29755478/the-contribution-of-autoantibodies-to-inflammatory-cardiovascular-pathology
#4
REVIEW
Lee A Meier, Bryce A Binstadt
Chronic inflammation and resulting tissue damage underlie the vast majority of acquired cardiovascular disease (CVD), a general term encompassing a widely diverse array of conditions. Both innate and adaptive immune mechanisms contribute to chronic inflammation in CVD. Although maladies, such as atherosclerosis and cardiac fibrosis, are commonly conceptualized as disorders of inflammation, the cellular and molecular mechanisms that promote inflammation during the natural history of these diseases in human patients are not fully defined...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29727857/unravelling-the-contribution-of-lactic-acid-bacteria-and-acetic-acid-bacteria-to-cocoa-fermentation-using-inoculated-organisms
#5
Van Thi Thuy Ho, Graham H Fleet, Jian Zhao
Cocoa beans (Theobroma cacao L.) are the raw material for chocolate production. Fermentation of the bean pulp by microorganisms is essential for developing the precursors of chocolate flavour. Currently, the cocoa fermentation is still conducted by an uncontrolled traditional process via a consortium of indigenous species of yeasts, lactic acid bacteria and acetic acid bacteria. Although the essential contribution of yeasts to the production of good quality beans and, typical chocolate character is generally agreed, the roles of lactic acid bacteria and acetic acid bacteria are less certain...
April 27, 2018: International Journal of Food Microbiology
https://www.readbyqxmd.com/read/29717669/novel-kombucha-beverage-from-lingzhi-or-reishi-medicinal-mushroom-ganoderma-lucidum-with-antibacterial-and-antioxidant-effects
#6
Aleksandra Sknepnek, Milena Pantić, Danka Matijašević, Dunja Miletić, Steva Lević, Viktor Nedović, Miomir Niksic
Kombucha is a nonalcoholic beverage traditionally made by fermenting black tea using a combination of yeast and acetic acid bacteria (AAB) cultures. Ganoderma lucidum hot water extract (HWE) was used-to our knowledge for the first time-to prepare a novel, health-promoting kombucha product. During the 11-day fermentation, pH, total acidity, and the numbers of yeasts and AAB were monitored. It was found that sweetened G. lucidum HWE was a good medium for yeast and AAB growth. The desired acidity for the beverage was reached on the second day (3 g/L) of the fermentation process; the maximum established acidity was 22...
2018: International Journal of Medicinal Mushrooms
https://www.readbyqxmd.com/read/29713596/bacterial-nanocellulose-what-future
#7
EDITORIAL
Francisco Miguel Portela da Gama, Fernando Dourado
Acetic acid bacteria (AAB) have been used in various fermentation processes. Of several ABB, the bacterial nanocellulose (BNC) producers, notably Komagataeibacter xylinus , appears as an interesting species, in large part because of their ability in the secretion of cellulose as nano/microfibrils. In fact, BNC is characterized by a native nanofibrillar structure, which may outperform the currently used celluloses in the food industry as a promising novel hydrocolloid additive. During the last couple of years, a number of companies worldwide have introduced some BNC-based products to the market...
2018: BioImpacts: BI
https://www.readbyqxmd.com/read/29713325/are-anti-retinal-autoantibodies-a-cause-or-a-consequence-of-retinal-degeneration-in-autoimmune-retinopathies
#8
REVIEW
Grazyna Adamus
Autoantibodies (AAbs) against various retinal proteins have been associated with vision loss in paraneoplastic and non-paraneoplastic autoimmune retinopathies (AR). There are two major paraneoplastic syndromes associated anti-retinal AAbs, cancer-associated retinopathy (CAR), and melanoma-associated retinopathy. Some people without a cancer diagnosis may present symptoms of CAR and have anti-retinal AAbs. The etiology and pathogenesis of those entities are not fully understood. In this review, we provide evidence for the role of AAbs in retinal death and degeneration...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29681745/breeding-of-fragrant-cyclamen-by-interspecific-hybridization-and-ion-beam-irradiation
#9
REVIEW
Hiroshi Ishizaka
Conventional breeding of cyclamen has relied on crossings among Cyclamen persicum cultivars without consideration of the scent of the flowers. Cyclamen purpurascens is a wild species with the most fragrant flowers in the genus Cyclamen. Allodiploid (2 n = 2 x = 41, AB) and allotriploid (2 n = 3 x = 65, AAB) plants have been produced from crosses of diploid and autotetraploid cultivars of C. persicum (2 n = 2 x = 48, AA; 4 x = 96, AAAA) × diploid wild C. purpurascens (2 n = 2 x = 34, BB) by embryo rescue, but are sterile...
January 2018: Breeding Science
https://www.readbyqxmd.com/read/29626217/axillary-accessory-breast-optimal-time-for-operation
#10
Sung Ryul Lee, Seung Geun Lee, Geon Young Byun, Myoung Jin Kim, Bum Hwan Koo
BACKGROUND: Accessory breasts are usually located in the axilla. Symptoms associated with an axillary accessory breast (AAB) may newly develop or worsen after pregnancy. After childbirth, AAB engorgement and hyperplasia may occur due to milk formation. We evaluated the optimal time for AAB excision and assessed variations in clinical presentations and surgical outcomes associated with pregnancy. METHODS: In total, 540 women whose symptoms began from puberty and underwent AAB excision were retrospectively analyzed...
April 6, 2018: Aesthetic Plastic Surgery
https://www.readbyqxmd.com/read/29623076/autoantibodies-in-serum-of-systemic-scleroderma-patients-peptide-based-epitope-mapping-indicates-increased-binding-to-cytoplasmic-domains-of-cxcr3
#11
Andreas Recke, Ann-Katrin Regensburger, Florian Weigold, Antje Müller, Harald Heidecke, Gabriele Marschner, Christoph M Hammers, Ralf J Ludwig, Gabriela Riemekasten
Systemic sclerosis (SSc) is a severe chronic autoimmune disease with high morbidity and mortality. Sera of patients with SSc contain a large variety of autoantibody (aab) reactivities. Among these are functionally active aab that bind to G protein-coupled receptors (GPCR) such as C-X-C motif chemokine receptor 3 (CXCR3) and 4 (CXCR4). Aab binding to the N-terminal portion of these two GPCRs have been shown to be associated with slower disease progression in SSc, especially deterioration of lung function. Aabs binding to GPCRs exhibit functional activities by stimulating or inhibiting GPCR signaling...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29619029/anti-type-vii-collagen-antibodies-are-identified-in-a-subpopulation-of-bullous-pemphigoid-patients-with-relapse
#12
Delphine Giusti, Grégory Gatouillat, Sébastien Le Jan, Julie Plée, Philippe Bernard, Frank Antonicelli, Bach-Nga Pham
Bullous pemphigoid (BP) is an autoimmune bullous skin disease characterized by anti-BP180 and anti-BP230 autoantibodies (AAbs). Mucous membrane involvement is an uncommon clinical feature of BP which may evoke epidermolysis bullosa acquisita, another skin autoimmune disease characterized by anti-type VII collagen AAbs. We therefore evaluated the presence of anti-type VII collagen AAbs in the serum of BP patients with and without mucosal lesions at time of diagnosis and under therapy. Anti-BP180, anti-BP230, and anti-type VII collagen AAbs were measured by ELISA in the serum of unselected patients fulfilling clinical and histo/immunopathological BP criteria at baseline ( n  = 71) and at time of relapse ( n  = 24)...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29565485/clinical-value-of-combined-detection-of-serum-ape1-aabs-and-ceacam-1-in-the-diagnosis-of-colorectal-cancer
#13
W Huajun, F Ying, Z Hongxing, S Weifeng, S Pingyang, H Mingde, L Guoguang
OBJECTIVE: To analyze the clinical value of combined detection of serum APE1-Aabs and CEACAM-1 in pathological diagnosis of colorectal cancer. PATIENTS AND METHODS: From December 2014 to July 2016, 60 patients with colorectal cancer and 50 healthy subjects were enrolled in this study. The levels of APE1-AAbs, CEACAM-1 and CEA in the serum were measured, and the clinical value of each index in the diagnosis of colorectal cancer was analyzed. RESULTS: The level of serum APE1-AAbs in colorectal cancer group was significantly higher than that in healthy control group (p < 0...
March 2018: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/29540798/application-of-a-genetic-risk-score-to-racially-diverse-type-1-diabetes-populations-demonstrates-the-need-for-diversity-in-risk-modeling
#14
Daniel J Perry, Clive H Wasserfall, Richard A Oram, MacKenzie D Williams, Amanda Posgai, Andrew B Muir, Michael J Haller, Desmond A Schatz, Mark A Wallet, Clayton E Mathews, Mark A Atkinson, Todd M Brusko
Prior studies identified HLA class-II and 57 additional loci as contributors to genetic susceptibility for type 1 diabetes (T1D). We hypothesized that race and/or ethnicity would be contextually important for evaluating genetic risk markers previously identified from Caucasian/European cohorts. We determined the capacity for a combined genetic risk score (GRS) to discriminate disease-risk subgroups in a racially and ethnically diverse cohort from the southeastern U.S. including 637 T1D patients, 46 at-risk relatives having two or more T1D-related autoantibodies (≥2AAb+ ), 790 first-degree relatives (≤1AAb+ ), 68 second-degree relatives (≤1 AAb+ ), and 405 controls...
March 14, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29540670/decreased-autophagy-induced-by-%C3%AE-1-adrenoceptor-autoantibodies-contributes-to-cardiomyocyte-apoptosis
#15
Li Wang, Yang Li, Na Ning, Jin Wang, Zi Yan, Suli Zhang, Xiangying Jiao, Xiaohui Wang, Huirong Liu
It has been recognized that myocardial apoptosis is one major factor in the development of heart dysfunction and autophagy has been shown to influence the apoptosis. In previous studies, we reported that anti-β1 -adrenergic receptor autoantibodies (β1 -AABs) decreased myocardial autophagy, but the role of decreased autophagy in cardiomyocyte apoptosis remains unclear. In the present study, we used a β1 -AAB-immunized rat model to investigate the role of decreased autophagy in cardiomyocyte apoptosis. We reported that the level of autophagic flux increased early and then decreased in an actively β1 -AAB-immunized rat model...
March 14, 2018: Cell Death & Disease
https://www.readbyqxmd.com/read/29538413/functional-autoantibodies-in-patients-with-different-forms-of-dementia
#16
Gerd Wallukat, Harald Prüss, Johannes Müller, Ingolf Schimke
Dementia in general and Alzheimer's disease in particular is increasingly seen in association with autoimmunity being causatively or supportively involved in the pathogenesis. Besides classic autoantibodies (AABs) present in dementia patients, there is the new autoantibody class called functional autoantibodies, which is directed against G-protein coupled receptors (GPCRs; GPCR-AABs) and are seen as pathogenic players. However, less is known about dementia patients' burden with functional autoantibodies. We present here for the first time a study analyzing the prevalence of GPCR-AABs in patients with different dementia forms such as unclassified, Lewy body, vascular and Alzheimer's dementia...
2018: PloS One
https://www.readbyqxmd.com/read/29526195/different-temperatures-select-distinctive-acetic-acid-bacteria-species-and-promotes-organic-acids-production-during-kombucha-tea-fermentation
#17
Francesca De Filippis, Antonio Dario Troise, Paola Vitaglione, Danilo Ercolini
Kombucha is a traditional beverage produced by tea fermentation, carried out by a symbiotic consortium of bacteria and yeasts. Acetic Acid Bacteria (AAB) usually dominate the bacterial community of Kombucha, driving the fermentative process. The consumption of this beverage was often associated to beneficial effects for the health, due to its antioxidant and detoxifying properties. We characterized bacterial populations of Kombucha tea fermented at 20 or 30 °C by using culture-dependent and -independent methods and monitored the concentration of gluconic and glucuronic acids, as well as of total polyphenols...
August 2018: Food Microbiology
https://www.readbyqxmd.com/read/29487732/isolation-and-identification-of-komagataeibacter-xylinus-from-iranian-traditional-vinegars-and-molecular-analyses
#18
Paria Sadat Lavasani, Elahe Motevaseli, Mahdieh Shirzad, Mohammad Hossein Modarressi
Background and Objectives: Acetic acid bacteria (AAB) are one of the major interests of researchers. Traditional vinegars are suitable sources of AAB because they are not undergone industrial process like filtering and adding preservatives. Komagataeibacter xylinus as a member of AAB is known as the main cellulose producer among other bacteria. The purpose of the current study was to isolate the bacteria from traditional vinegars and its molecular analyses. Materials and Methods: Vinegar samples were collected...
December 2017: Iranian Journal of Microbiology
https://www.readbyqxmd.com/read/29483909/agonistic-autoantibodies-to-the-%C3%AE-2-adrenergic-receptor-involved-in-the-pathogenesis-of-open-angle-glaucoma
#19
Anselm Jünemann, Bettina Hohberger, Jürgen Rech, Ahmed Sheriff, Qin Fu, Ursula Schlötzer-Schrehardt, Reinhard Edmund Voll, Sabine Bartel, Hubert Kalbacher, Johan Hoebeke, Robert Rejdak, Folkert Horn, Gerd Wallukat, Rudolf Kunze, Martin Herrmann
Glaucoma is a frequent ocular disease that may lead to blindness. Primary open-angle glaucoma (POAG) and ocular hypertension (OHT) are common diseases with increased intraocular pressure (IOP), which are mainly responsible for these disorders. Their pathogenesis is widely unknown. We screened the sera of patients with POAG and OHT for the prevalence of autoantibodies (AAb) against G protein-coupled receptors (GPCRs) in comparison to controls. Employing frequency modulation of spontaneously contracting neonatal rat cardiomyocytes in vitro , agonistic GPCR AAb were to be detected in roughly 75% of the patients with POAG and OHT, however, not in controls...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29473162/tumor-associated-autoantibodies-as-early-detection-markers-for-ovarian-cancer-a-prospective-evaluation
#20
Rudolf Kaaks, Renée Turzanski Fortner, Anika Hüsing, Myrto Barrdahl, Marika Hopper, Theron Johnson, Anne Tjønneland, Louise Hansen, Kim Overvad, Agnès Fournier, Marie-Christine Boutron-Ruault, Marina Kvaskoff, Laure Dossus, Mattias Johansson, Heiner Boeing, Antonia Trichopoulou, Vassiliki Benetou, Carlo La Vecchia, Sabina Sieri, Amalia Mattiello, Domenico Palli, Rosario Tumino, Giuseppe Matullo, N Charlotte Onland-Moret, Inger T Gram, Elisabete Weiderpass, Maria-Jose Sánchez, Carmen Navarro Sanchez, Eric J Duell, Eva Ardanaz, Nerea Larranaga, Eva Lundin, Annika Idahl, Karin Jirström, Björn Nodin, Ruth C Travis, Elio Riboli, Melissa Merritt, Dagfinn Aune, Kathryn Terry, Daniel W Cramer, Karen S Anderson
Immuno-proteomic screening has identified several tumor-associated autoantibodies (AAb) that may have diagnostic capacity for invasive epithelial ovarian cancer, with AAbs to P53 proteins and cancer-testis antigens (CTAGs) as prominent examples. However, the early detection potential of these AAbs has been insufficiently explored in prospective studies. We performed ELISA measurements of AAbs to CTAG1A, CTAG2, P53 and NUDT11 proteins, for 194 patients with ovarian cancer and 705 matched controls from the European EPIC cohort, using serum samples collected up to 36 months prior to diagnosis under usual care...
February 22, 2018: International Journal of Cancer. Journal International du Cancer
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