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asthma biologics

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https://www.readbyqxmd.com/read/28196708/design-synthesis-and-biological-evaluation-of-2-4-disubstituted-oxazole-derivatives-as-potential-pde4-inhibitors
#1
Ya-Sheng Li, De-Kun Hu, Dong-Sheng Zhao, Xing-Yu Liu, Hong-Wei Jin, Gao-Peng Song, Zi-Ning Cui, Lian-Hui Zhang
In this study, a series of pyrazole derivatives containing 4-phenyl-2-oxazole moiety were designed and synthesized in a concise way, some of which exhibited considerable inhibitory activity against PDE4B and blockade of LPS-induced TNF-α release. Compound 4c displayed the strongest inhibition activity (IC50=1.6±0.4μM) and good selectivity against PDE4B. Meanwhile, compound 4c showed good in vivo activity in animal models of asthma/COPD and sepsis induced by LPS. The primary structure-activity relationship study showed the 3,5-dimethylpyrazole residue was essential for the bioactivity, and the substituted group R1 at the benzene ring also affected the activity...
February 3, 2017: Bioorganic & Medicinal Chemistry
https://www.readbyqxmd.com/read/28188833/metabolomic-profiling-of-lung-function-in-costa-rican-children-with-asthma
#2
Rachel S Kelly, Yamini Virkud, Rachel Giorgio, Juan C Celedón, Scott T Weiss, Jessica Lasky-Su
BACKGROUND: The development of novel therapeutics and treatment regimens for the management of asthma is hindered by an incomplete understanding of its heterogeneous nature and pathophysiology. Metabolomics can provide an integrated and global profile of a biological system in a dysregulated state, making it a valuable tool to identify biomarkers along the disease development pathway and to understand the biological mechanisms driving that pathway. METHODS: Liquid Chromatography-Mass spectrometry metabolomic profiling was conducted on plasma samples provided at recruitment for 380 children with asthma from the 'Genetic Epidemiology of Asthma in Costa Rica Cohort'...
February 7, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28183482/use-of-biological-agents-in-asthma-pharmacoeconomic-lessons-learned-from-omalizumab
#3
EDITORIAL
Steven Draikiwicz, John Oppenheimer
No abstract text is available yet for this article.
February 2017: Chest
https://www.readbyqxmd.com/read/28174512/allergic-diseases-in-the-elderly-biological-characteristics-and-main-immunological-and-non-immunological-mechanisms
#4
REVIEW
Maria Teresa Ventura, Nicola Scichilone, Roberto Paganelli, Paola Lucia Minciullo, Vincenzo Patella, Matteo Bonini, Giovanni Passalacqua, Carlo Lombardi, Livio Simioni, Erminia Ridolo, Stefano R Del Giacco, Sebastiano Gangemi, Giorgio Walter Canonica
Life expectancy and the number of elderly people are progressively increasing around the world. Together with other pathologies, allergic diseases also show an increasing incidence in geriatric age. This is partly due to the growing emphasis on a more accurate and careful diagnosis of the molecular mechanisms that do not allow to ignore the real pathogenesis of many symptoms until now unknown, and partly to the fact that the allergic people from 20 years ago represent the elderly population now. Moreover, environmental pollution predisposes to the onset of allergic asthma and dermatitis which are the result of internal pathologies more than the expression of allergic manifestations...
2017: Clinical and Molecular Allergy: CMA
https://www.readbyqxmd.com/read/28170342/linking-childhood-allergic-asthma-phenotypes-with-endotype-through-integrated-systems-biology-current-evidence-and-research-needs
#5
Hyunok Choi, Won-Min Song, Bin Zhang
Asthma and other complex diseases results from a complex web of interactions involving inflammation, immunity, cell cycle, apoptosis, and metabolic perturbations across multiple organ systems. The extent to which various degrees of the age at onset, symptom severity, and the natural progression of the disease reflect multiple disease subtypes, influenced by unique process of development remains unknown. One of the most critical challenges to our understanding stems from incomplete understanding of the mechanisms...
February 7, 2017: Reviews on Environmental Health
https://www.readbyqxmd.com/read/28164844/basic-definitions-and-concepts-organization-of-the-gut-microbiome
#6
REVIEW
Eamonn M M Quigley
New claims are frequently made for a role for the microbiome in a disease or disorder previously considered remote from the gut. The microbiome has been linked to such seemingly unrelated entities as depression, anorexia nervosa, autism, Parkinson disease, allergy, and asthma. Although many of these proposals have been based on animal studies, explorations of the microbiome in human disease continue to proliferate, facilitated by technologies that provide a detailed assessment of the microbial inhabitants of our gastrointestinal tract and their biological activities and metabolic products...
March 2017: Gastroenterology Clinics of North America
https://www.readbyqxmd.com/read/28164609/anti-cytoplasmic-autoantibodies-in-hodgkin-s-lymphoma
#7
Joachim Sennekamp, Hans-Peter Seelig
BACKGROUND: A 42-year old male patient with anamnesis of bronchial asthma presented himself with exertional dyspnea. High titer antibodies of cytoplasmic pattern in the indirect immunofluorescence test (IIFT) on HEp-2cells, not attributable to common specificities like anti-tRNA-synthetases, anti-signal recognition particle (SRP) or anti-ribosomal proteins (RPs) prompted the molecular biological approach for determination of antigen specificity. In-depth investigation of the patient's clinical settings revealed a lymphocyte predominant Hodgkin's lymphoma, which could be brought to complete remission by chemotherapy...
August 1, 2016: Clinical Laboratory
https://www.readbyqxmd.com/read/28160515/allergic-asthma-an-overview-of-metabolomic-strategies-leading-to-the-identification-of-biomarkers-in-the-field
#8
Alma Villaseñor, Domenico Rosace, David Obeso, Marina Pérez-Gordo, Tomás Chivato, Coral Barbas, Domingo Barber, María M Escribese
Allergic asthma is a prominent disease especially during childhood. Indoor allergens, in general, and particularly house dust mites (HDM) are the most prevalent sensitizers associated with allergic asthma. Available data shows that 65 to 130 million people are mite-sensitized worldwide and as many as 50% of these are asthmatic. In fact, sensitization to HDM in the first years of life can produce devastating effects on pulmonary function leading to asthmatic syndromes that can be fatal. To date, there has been considerable research into the pathological pathways and structural changes associated with allergic asthma...
February 4, 2017: Clinical and Experimental Allergy: Journal of the British Society for Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28152649/anti-inflammatory-anti-cholinergic-and-cytotoxic-effects-of-sida-rhombifolia
#9
Siau Hui Mah, Soek Sin Teh, Gwendoline Cheng Lian Ee
CONTEXT: Sida (Malvaceae) has been used as a traditional remedy for the treatment of diarrhoea, malarial, gastrointestinal dysentery, fevers, asthma and inflammation. OBJECTIVES: This study evaluates the anti-inflammatory, cytotoxic and anti-cholinergic activities of Sida rhombifolia Linn. whole plant for the first time. MATERIALS AND METHODS: S. rhombifolia whole plant was extracted by n-hexane, ethyl acetate and methanol using Soxhlet apparatus...
December 2017: Pharmaceutical Biology
https://www.readbyqxmd.com/read/28143691/changing-paradigms-in-the-treatment-of-severe-asthma-the-role-of-biologic-therapies
#10
Rohit K Katial, Greg W Bensch, William W Busse, Bradley E Chipps, Joshua L Denson, Anthony N Gerber, Joshua S Jacobs, Monica Kraft, Richard J Martin, Parameswaran Nair, Michael E Wechsler
Cytokine antagonists are monoclonal antibodies that offer new treatment options for refractory asthma but will also increase complexity because they are effective only for patients with certain asthma subtypes that remain to be more clearly defined. The clinical and inflammatory heterogeneity within refractory asthma makes it difficult to manage the disease and to determine which, if any, biologic therapy is suitable for a specific patient. The purpose of this article is to provide a data-driven discussion to clarify the use of biologic therapies in patients with refractory asthma...
January 28, 2017: Journal of Allergy and Clinical Immunology in Practice
https://www.readbyqxmd.com/read/28124134/diagnosis-of-strongyloides-stercoralis-by-morphological-characteristics-combine-with-molecular-biological-methods
#11
Li-Fu Wang, Lian Xu, Shi-Qi Luo, Hui Xie, Wei Chen, Zhong-Dao Wu, Xi Sun
Strongyloidiasis is one of the neglected tropical diseases caused by infection with the nematode Strongyloides genus and distributed worldwide. Strongyloidiasis can be fatal in immunosuppressed patients induced hyperinfection or disseminated strongyloidiasis. Unfortunately, until now, due to the unspecific clinical symptom in infected individuals and the low sensitivity diagnosis of strongyloidiasis, many patients were misdiagnosed every year. Furthermore, the larvae of the Strongyloides stercoralis (S. stercoralis) is similar to other nematodes such as hookworm, Trichostrongylus increased the difficulty of diagnosis...
January 26, 2017: Parasitology Research
https://www.readbyqxmd.com/read/28121009/molecular-biophysical-and-pharmacological-properties-of-calcium-activated-chloride-channels
#12
REVIEW
Mohammad Amin Kamaleddin
Calcium-activated chloride channels (CaCCs) are a family of anionic transmembrane ion channels. They are mainly responsible for the movement of Cl(-) and other anions across the biological membranes and are widely expressed in different tissues. Due to the fact that Cl(-) flow into or out of the cell plays a crucial role in hyperpolarizing or depolarizing the cells, respectively, the impact of intracellular Ca(2+) concentration on these channels is attracting a lot of attentions. After summarizing the molecular, biophysical, and pharmacological properties of CaCCs, the role of CaCCs in normal cellular functions will be discussed, and I will emphasize how dysregulation of CaCCs in pathological conditions can account for different diseases...
January 25, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28115974/lippia-javanica-burm-f-spreng-traditional-and-commercial-uses-and-phytochemical-and-pharmacological-significance-in-the-african-and-indian-subcontinent
#13
REVIEW
Alfred Maroyi
Lippia javanica occurs naturally in central, eastern, and southern Africa and has also been recorded in the tropical Indian subcontinent. The potential of L. javanica as herbal or recreational tea and herbal medicine and its associated phytochemistry and biological properties are reviewed. The extensive literature survey revealed that L. javanica is used as herbal tea and has ethnomedicinal applications such as in colds, cough, fever, malaria, wounds, diarrhoea, chest pains, bronchitis, and asthma. Multiple classes of phytochemicals including volatile and nonvolatile secondary metabolites such as alkaloids, amino acids, flavonoids, iridoids, and triterpenes as well as several minerals have been identified from L...
2017: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/28115915/effects-of-corticosteroid-plus-long-acting-beta2-agonist-on-the-expression-of-pd-l1-in-double-stranded-rna-induced-lung-inflammation-in-mice
#14
Saaka Hamano, Koichiro Matsumoto, Ken Tonai, Satoru Fukuyama, Keiko Kan-O, Nanae Seki, Hiromasa Inoue, Yoichi Nakanishi
BACKGROUND: Airway viral infections cause the exacerbations of asthma and chronic obstructive pulmonary disease. PD-L1, also known as B7-H1, is an immune-checkpoint molecule that plays a role in an escape mechanism of viruses from the host immune systems. This escape may be associated with the persistence of viral infection and the exacerbation of the underlying diseases. In a study in vitro, we have shown that corticosteroids plus long-acting beta2-agonists (LABAs) attenuate the upregulation of PD-L1 on airway epithelial cells stimulated with an analog of viral double-stranded RNA, polyinosinic-polycytidylic acid (poly I:C)...
2017: Journal of Inflammation
https://www.readbyqxmd.com/read/28109164/assessment-of-biological-psychological-and-adherence-factors-in-the-prediction-of-step-down-treatment-for-patients-with-well-controlled-asthma
#15
Norihiro Saito, Akihito Kamata, Masamichi Itoga, Mami Tamaki, Hiroyuki Kayaba, Thomas Ritz
OBJECTIVES: Inhaled corticosteroids (ICS) and inhaled corticosteroids combined with long-acting beta2-agonist (ICS/LABA) are standard treatments for asthma. However, factors that might help reduce medication in well-controlled asthma are unknown. We classified problems of asthma patients into biological, psychological and adherence factors, and investigated factors associated with the indication and failure of a medication step-down treatment. METHODS: Two hundred twenty two well-controlled asthma patients receiving ICS or ICS/LABA were assessed for physical and psychiatric problems and followed up for one year from adjustment of their treatment step...
January 21, 2017: Clinical and Experimental Allergy: Journal of the British Society for Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28106744/oligonucleotide-therapy-for-obstructive-and-restrictive-respiratory-diseases
#16
REVIEW
Wupeng Liao, Jinrui Dong, Hong Yong Peh, Lay Hong Tan, Kah Suan Lim, Li Li, Wai-Shiu Fred Wong
Inhaled oligonucleotide is an emerging therapeutic modality for various common respiratory diseases, including obstructive airway diseases like asthma and chronic obstructive pulmonary disease (COPD) and restrictive airway diseases like idiopathic pulmonary fibrosis (IPF). The advantage of direct accessibility for oligonucleotide molecules to the lung target sites, bypassing systemic administration, makes this therapeutic approach promising with minimized potential systemic side effects. Asthma, COPD, and IPF are common chronic respiratory diseases, characterized by persistent airway inflammation and dysregulated tissue repair and remodeling, although each individual disease has its unique etiology...
January 17, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28103963/sex-differences-in-early-life-programming-of-the-hypothalamic-pituitary-adrenal-axis-in-humans-suggest-increased-vulnerability-in-females-a-systematic-review
#17
T Carpenter, S M Grecian, R M Reynolds
Fetal glucocorticoid overexposure is a key mechanism linking early development with later-life disease. In humans, low birth weight associates with increased fasting cortisol, hypothalamic-pituitary-adrenal (HPA) axis reactivity, and with cardiovascular risk and cognitive decline. As there are sex differences in these adult diseases, we hypothesized that there may be sex differences in programming of the HPA axis in response to prenatal stressors. We conducted a systematic review following Meta-Analysis of Observational Studies in Epidemiology and Preferred Reporting Items for Systematic Reviews and Meta-Analysis...
January 20, 2017: Journal of Developmental Origins of Health and Disease
https://www.readbyqxmd.com/read/28103252/comparative-and-evolutionary-analysis-of-grass-pollen-allergens-using-brachypodium-distachyon-as-a-model-system
#18
Akanksha Sharma, Niharika Sharma, Prem Bhalla, Mohan Singh
Comparative genomics have facilitated the mining of biological information from a genome sequence, through the detection of similarities and differences with genomes of closely or more distantly related species. By using such comparative approaches, knowledge can be transferred from the model to non-model organisms and insights can be gained in the structural and evolutionary patterns of specific genes. In the absence of sequenced genomes for allergenic grasses, this study was aimed at understanding the structure, organisation and expression profiles of grass pollen allergens using the genomic data from Brachypodium distachyon as it is phylogenetically related to the allergenic grasses...
2017: PloS One
https://www.readbyqxmd.com/read/28102118/myeloid-cells-in-asthma
#19
Bart N Lambrecht, Emma K Persson, Hamida Hammad
Asthma is a heterogeneous chronic inflammatory disorder of the airways, and not surprisingly, many myeloid cells play a crucial role in pathogenesis. Antigen-presenting dendritic cells are the first to recognize the allergens, pollutants, and viruses that are implicated in asthma pathogenesis, and subsequently initiate the adaptive immune response by migrating to lymph nodes. Eosinophils are the hallmark of type 2 inflammation, releasing toxic compounds in the airways and contributing to airway remodeling. Mast cells and basophils control both the early- and late-phase allergic response and contribute to alterations in smooth muscle reactivity...
January 2017: Microbiology Spectrum
https://www.readbyqxmd.com/read/28087917/-reasearch-progress-on-the-role-of-neutrophils-in-asthma
#20
Tingting Li, Yuehai Ke, Hongqiang Cheng
Asthma is a phenotypically heterogeneous chronic disease of the airways. Studies have found that neutrophils are crucial to airway inflammation in acute asthma, persistent asthma, particularly in asthma of poor response to glucocorticoid treatment. The role of neutrophils in development of bronchial asthma is complex, as they can release a potent source of cytokines and inflammatory mediators participating in asthma. Differing from eosinophilic inflammatory asthma, neutrophilic inflammatory asthma is not depend on helper T (Th)2 cells, but may be related to Th1 and Th17 cells...
May 25, 2016: Zhejiang da Xue Xue Bao. Yi Xue Ban, Journal of Zhejiang University. Medical Sciences
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