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https://www.readbyqxmd.com/read/28447368/optimization-of-aqueous-extraction-and-biological-activity-of-harpagophytum-procumbens-root-on-ex-vivo-rat-colon-inflammatory-model
#1
Marcello Locatelli, Claudio Ferrante, Simone Carradori, Daniela Secci, Lidia Leporini, Annalisa Chiavaroli, Sheila Leone, Lucia Recinella, Giustino Orlando, Sara Martinotti, Luigi Brunetti, Michele Vacca, Luigi Menghini
Harpagophytum procumbens has a long story of use for the treatment of inflammatory diseases. Considering both the antiinflammatory effects of H. procumbens in multiple tissues and the stability of harpagoside in artificial intestinal fluid, the aim of the present study was to explore the possible protective role of a microwave-assisted aqueous Harpagophytum extract (1-1000 μg/mL) on mouse myoblast C2C12 and human colorectal adenocarcinoma HCT116 cell lines, and isolated rat colon specimens challenged with lipopolysaccharide (LPS), a validated ex vivo model of acute ulcerative colitis...
April 26, 2017: Phytotherapy Research: PTR
https://www.readbyqxmd.com/read/28429840/non-response-to-fluconazole-maintenance-treatment-recidif-regimen-for-recurrent-vulvovaginal-candidosis-is-not-related-to-impaired-glucose-metabolism
#2
Svitrigaile Grinceviciene, Gert Bellen, Kateryna Ruban, Gilbert Donders
Is non-response to maintenance treatment for recurrent vulvovaginal candidosis (RCVV) related to the impaired glucose metabolism? In the ReCiDiF trial, women with RCVV were given a degressive regimen with fluconazole according to their clinical, microscopic and mycologic response. Data obtained from optimal, suboptimal and non-reponding patients were used for secondary analysis of medical history, physical status and family history for potential glucose impairment. Results were presented in means and percentages...
April 21, 2017: Mycoses
https://www.readbyqxmd.com/read/28406700/moderate-exercise-based-on-artificial-gravity-preserves-orthostatic-tolerance-and-exercise-capacity-during-short-term-head-down-bed-rest
#3
Xiao-Tao Li, Chang-Bin Yang, Yong-Sheng Zhu, Jing Sun, Fei Shi, Yong-Chun Wang, Yuan Gao, Jiang-Dong Zhao, Xi-Qing Sun
Numerous countermeasures have been proposed to minimize microgravity-induced physical deconditioning, but their benefits are limited. The present study aimed to investigate whether personalized aerobic exercise based on artificial gravity (AG) mitigates multisystem physical deconditioning. Fourteen men were assigned to the control group (n=6) and the countermeasure group (CM, n=8). Subjects in the CM group were exposed to AG (2Gz at foot level) for 30 min twice daily, during which time cycling exercise of 80-95% anaerobic threshold (AT) intensity was undertaken...
April 12, 2017: Physiological Research
https://www.readbyqxmd.com/read/28325760/neisseria-meningitidis-uses-sibling-small-regulatory-rnas-to-switch-from-cataplerotic-to-anaplerotic-metabolism
#4
Yvonne Pannekoek, Robert A G Huis In 't Veld, Kim Schipper, Sandra Bovenkerk, Gertjan Kramer, Matthijs C Brouwer, Diederik van de Beek, Dave Speijer, Arie van der Ende
Neisseria meningitidis (the meningococcus) is primarily a commensal of the human oropharynx that sporadically causes septicemia and meningitis. Meningococci adapt to diverse local host conditions differing in nutrient supply, like the nasopharynx, blood, and cerebrospinal fluid, by changing metabolism and protein repertoire. However, regulatory transcription factors and two-component systems in meningococci involved in adaptation to local nutrient variations are limited. We identified novel sibling small regulatory RNAs ( Neisseriametabolic switch regulators [NmsRs]) regulating switches between cataplerotic and anaplerotic metabolism in this pathogen...
March 21, 2017: MBio
https://www.readbyqxmd.com/read/28315219/assessment-of-ige-reactivity-of-%C3%AE-casein-by-western-blotting-after-digestion-with-simulated-gastric-fluid
#5
Sara Benedé, Rosina López-Fandiño, Elena Molina
Cow's milk allergy is defined as an immunologically mediated adverse reaction to cow's milk proteins and it is usually, along with hen's egg allergy, the first food allergy identified in childhood.One of the main aspects to consider when evaluating the allergenic potential of food proteins is the effect of gastric digestion. It is known that allergens are usually able to survive the harsh acidic environment of the stomach, tolerate the presence of surfactants, and resist digestion by pepsin. They might also be digested into high molecular weight peptide fragments, which retain the same, or sometimes increased, IgE-binding...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28300844/il-27-triggers-il-10-production-in-th17-cells-via-a-c-maf-ror%C3%AE-t-blimp-1-signal-to-promote-the-progression-of-endometriosis
#6
Kai-Kai Chang, Li-Bing Liu, Li-Ping Jin, Bing Zhang, Jie Mei, Hui Li, Chun-Yan Wei, Wen-Jie Zhou, Xiao-Yong Zhu, Jun Shao, Da-Jin Li, Ming-Qing Li
Endometriosis is an estrogen-dependent inflammatory disease. The anti-inflammatory cytokine IL-10 is also increased in endometriosis. IL-10 production by Th17 cells is critical for limiting autoimmunity and inflammatory responses. However, the mechanism of inducing IL-10-producing Th17 cells is still largely unknown. The present study investigated the differentiation mechanism and role of IL-10-producing Th17 cells in endometriosis. Here, we report that IL-10(+)Th17 cells are significantly increased in the peritoneal fluid of women with endometriosis, along with an elevation of IL-27, IL-6 and TGF-β...
March 16, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28293378/hepatorenal-syndrome-update-on-diagnosis-and-therapy
#7
EDITORIAL
Juan G Acevedo, Matthew E Cramp
Hepatorenal syndrome (HRS) is a manifestation of extreme circulatory dysfunction and entails high morbidity and mortality. A new definition has been recently recommended by the International Club of Ascites, according to which HRS diagnosis relies in serum creatinine changes instead that on a fixed high value. Moreover, new data on urinary biomarkers has been recently published. In this sense, the use of urinary neutrophil gelatinase-associated lipocalin seems useful to identify patients with acute tubular necrosis and should be employed in the diagnostic algorithm...
February 28, 2017: World Journal of Hepatology
https://www.readbyqxmd.com/read/28277372/one-hit-models-of-ventilator-induced-lung-injury-benign-inflammation-versus-inflammation-as-a-by-product
#8
Dennis Lex, Stefan Uhlig
BACKGROUND: One important explanation for the detrimental effects of conventional mechanical ventilation is the biotrauma hypothesis that ventilation may trigger proinflammatory responses that subsequently cause lung injury. This hypothesis has frequently been studied in so-called one-hit models (overventilation of healthy lungs) that so far have failed to establish an unequivocal link between inflammation and hypoxemic lung failure. This study was designed to develop a one-hit biotrauma model...
May 2017: Anesthesiology
https://www.readbyqxmd.com/read/28261022/emerging-roles-of-lymphatic-vasculature-in-immunity
#9
REVIEW
Ki-Wook Kim, Joo-Hye Song
The lymphatic vasculature has been regarded as a passive conduit for interstitial fluid and responsible for the absorption of macromolecules such as proteins or lipids and transport of nutrients from food. However, emerging data show that the lymphatic vasculature system plays an important role in immune modulation. One of its major roles is to coordinate antigen transport and immune-cell trafficking from peripheral tissues to secondary lymphoid organs, lymph nodes. This perspective was recently updated with the notion that the interaction between lymphatic endothelial cells and leukocytes controls the immune-cell migration and immune responses by regulating lymphatic flow and various secreted molecules such as chemokines and cytokines...
February 2017: Immune Network
https://www.readbyqxmd.com/read/28245967/pulsatile-erlotinib-in-egfr-positive-non-small-cell-lung-cancer-patients-with-leptomeningeal-and-brain-metastases-review%C3%A2-of%C3%A2-the-literature
#10
REVIEW
Joan How, Janelle Mann, Andrew N Laczniak, Maria Q Baggstrom
Patients with epidermal growth factor receptor (EGFR)-positive (EGFR(+)) non-small-cell lung cancer (NSCLC) show improved response rates when treated with tyrosine kinase inhibitors (TKIs) such as erlotinib. However, standard daily dosing of erlotinib often does not reach therapeutic concentrations within the cerebrospinal fluid (CSF), resulting in progression of central nervous system (CNS) disease. Intermittent, high-dose administration of erlotinib reaches therapeutic concentrations within the CSF and is well tolerated in patients...
February 9, 2017: Clinical Lung Cancer
https://www.readbyqxmd.com/read/28224367/novel-treatment-with-intraperitoneal-moc31pe-immunotoxin-in-colorectal-peritoneal-metastasis-results-from-the-immunopeca-phase-1-trial
#11
Ida S Frøysnes, Yvonne Andersson, Stein G Larsen, Ben Davidson, Janne-Merete Torset Øien, Kari Hauge Olsen, Karl-Erik Giercksky, Lars Julsrud, Øystein Fodstad, Svein Dueland, Kjersti Flatmark
BACKGROUND: MOC31PE immunotoxin was developed to rapidly kill cells expressing the tumor-associated epithelial cell adhesion molecule, which is highly expressed in colorectal cancer. Although cytoreductive surgery (CRS) and hyperthermic intraperitoneal chemotherapy (HIPEC) may offer long-term survival to patients with peritoneal metastasis from colorectal cancer (PM-CRC), most patients experience disease relapse and novel therapeutic options are needed. On this basis, MOC31PE is being developed as a novel therapeutic principle to target PM-CRC...
February 21, 2017: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/28220121/bidirectional-crosstalk-between-lymphatic-endothelial-cell-and-t-cell-and-its-implications-in-tumor-immunity
#12
REVIEW
Kim Pin Yeo, Veronique Angeli
Lymphatic vessels have been traditionally considered as passive transporters of fluid and lipids. However, it is apparent from recent literature that the function of lymphatic vessels is not only restricted to fluid balance homeostasis but also extends to regulation of immune cell trafficking, antigen presentation, tolerance, and immunity, all which may impact the progression of inflammatory responses and diseases such as cancer. The lymphatic system and the immune system are intimately connected, and there is emergent evidence for a crosstalk between T cell and lymphatic endothelial cell (LEC)...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28212183/cxcl12-cxcr4-signaling-contributes-to-the-pathogenesis-of-opioid-tolerance-a-translational-study
#13
Chih-Peng Lin, Kai-Hsiang Kang, Huang-Ju Tu, Ming-Yueh Wu, Tzu-Hung Lin, Houng-Chi Liou, Wei-Zen Sun, Wen-Mei Fu
BACKGROUND: Long-term opioid therapy for chronic pain may lead to analgesic tolerance, especially when administered intrathecally, thus preventing adequate pain relief. Discovering drug targets to treat opioid tolerance using a mechanism-based approach targeting opioid-induced neuroinflammation provides new therapeutic opportunities. In this study, we provide translational evidence that CXCL12/CXCR4 signaling contributes to the pathogenesis of opioid tolerance. METHODS: The CXCL12 levels in the cerebrospinal fluid of opioid-tolerant patients were compared with those of opioid-naive subjects...
March 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28193366/development-of-c60-based-labeling-reagents-for-the-determination-of-low-molecular-weight-compounds-by-matrix-assisted-laser-desorption-ionization-mass-i-determination-of-amino-acids-in-microliter-biofluids
#14
Pin Wu, Hua-Ming Xiao, Jun Ding, Qian-Yun Deng, Fang Zheng, Yu-Qi Feng
Quantification of low molecular weight compounds (<800 Da) using matrix assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI MS) is challenging due to the matrix signal interference at low m/z region and poor reproducibility of MS responses. In this study, a C60 labeling-MALDI MS strategy was proposed for the fast, sensitive and reliable determination of amino acids (AAs) in biofluids. An N-hydroxysuccinimide functionalized C60 was synthesized as the labeling reagent and added as an 880 Da tag to AAs; a carboxyl acid containing C60 was employed as the internal standards to normalize MS variations...
April 1, 2017: Analytica Chimica Acta
https://www.readbyqxmd.com/read/28152418/variation-of-desiccation-tolerance-and-longevity-in-fern-spores
#15
Daniel Ballesteros, Lisa M Hill, Christina Walters
This work contributes to the understanding of plant cell responses to extreme water stress when it is applied at different intensity and duration. Fern spores are used to explore survival at relative humidity (RH)<85% because their unicellular nature eliminates complexities that may arise in multicellular organisms from slower drying and variable responses of different cell types. Fern spore cytoplasm solidifies between 30 and 60% RH and spores survive this transition, but subsequently lose viability. We characterized the kinetics of viability loss in terms of the fluid to solid transition using concepts of water activity (i...
April 2017: Journal of Plant Physiology
https://www.readbyqxmd.com/read/28143428/bk-um-in-patients-with-recurrent-ovarian-cancer-or-peritoneal-cancer-a-first-in-human-phase-i-study
#16
Shingo Miyamoto, Fusanori Yotsumoto, Taeko Ueda, Tatsuya Fukami, Ayako Sanui, Kohei Miyata, Sung Ouk Nam, Satoshi Fukagawa, Takahiro Katsuta, Miyako Maehara, Haruhiko Kondo, Daisuke Miyahara, Kyoko Shirota, Toshiyuki Yoshizato, Masahide Kuroki, Hiroaki Nishikawa, Keijiro Saku, Yoshio Tsuboi, Kenji Ishitsuka, Yasushi Takamatsu, Kazuo Tamura, Akira Matsunaga, Toru Hachisuga, Shinsuke Nishino, Takashi Odawara, Kazuhiro Maeda, Sadao Manabe, Toyokazu Ishikawa, Yoshinobu Okuno, Minako Ohishi, Tomoya Hikita, Hiroto Mizushima, Ryo Iwamoto, Eisuke Mekada
BACKGROUND: BK-UM (CRM197) is a mutant form of diphtheria toxin and a specific inhibitor of heparin-binding epidermal growth factor-like growth factor (HB-EGF). We assessed the safety, pharmacokinetics, recommended dose, and efficacy of BK-UM in patients with recurrent ovarian cancer (OC) or peritoneal cancer (PC), and measured HB-EGF levels in serum and abdominal fluid after BK-UM administration. METHODS: Eleven patients with advanced or recurrent OC or PC were enrolled and treated with BK-UM via the intraperitoneal route...
January 31, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28132045/the-role-of-t-regulatory-and-th17-cells-in-the-pathogenesis-of-rheumatoid-arthritis-review
#17
N Kikodze, I Pantsulaia, T Chikovani
Chronic inflammation of joints of autoimmune origin - rheumatoid arthritis - develops due to deplorable coincidence of genetic, immune and environmental factors. Th17 cells are considered as the main effector cells in the pathogenesis of rheumatoid arthritis. Analysis of many reports clarify positive correlation between the frequencies of circulating Th17 cells, serum levels of IL-17A and IL-23, synovial IL-17 and disease activity. Autoreactive Th clone response is regulated by the certain population of suppressor cells - T regulatory cells (Tregs)...
December 2016: Georgian Medical News
https://www.readbyqxmd.com/read/28117479/the-role-of-physical-exercise-in-obstructive-sleep-apnea
#18
Flávio Maciel Dias de Andrade, Rodrigo Pinto Pedrosa
Obstructive sleep apnea (OSA) is a common clinical condition, with a variable and underestimated prevalence. OSA is the main condition associated with secondary systemic arterial hypertension, as well as with atrial fibrillation, stroke, and coronary artery disease, greatly increasing cardiovascular morbidity and mortality. Treatment with continuous positive airway pressure is not tolerated by all OSA patients and is often not suitable in cases of mild OSA. Hence, alternative methods to treat OSA and its cardiovascular consequences are needed...
November 2016: Jornal Brasileiro de Pneumologia: Publicaça̋o Oficial da Sociedade Brasileira de Pneumologia e Tisilogia
https://www.readbyqxmd.com/read/28112481/the-effects-of-body-weight-status-on-orthostatic-intolerance-and-predisposition-to-noncardiac-syncope
#19
REVIEW
G A Christou, D N Kiortsis
Orthostatic intolerance (OI) is frequently the mechanism underlying the occurrence of noncardiac syncope (NCS) and is associated with substantial risk for injury. Body weight status appears to be a modifier of orthostatic responses and possibly influences the propensity to NCS. The majority of cross-sectional studies have found that the lower the body mass index (BMI) the greater the predisposition to OI is, accompanied with both down-regulation of sympathetic nervous system activity and up-regulation of parasympathetic nervous system activity...
March 2017: Obesity Reviews: An Official Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/28107457/novel-analysis-of-immune-cells-from-nasal-microbiopsy-demonstrates-reliable-reproducible-data-for-immune-populations-and-superior-cytokine-detection-compared-to-nasal-wash
#20
Simon P Jochems, Katherine Piddock, Jamie Rylance, Hugh Adler, Beatriz F Carniel, Andrea Collins, Jenna F Gritzfeld, Carole Hancock, Helen Hill, Jesus Reiné, Alexandra Seddon, Carla Solórzano, Syba Sunny, Ashleigh Trimble, Angela D Wright, Seher Zaidi, Stephen B Gordon, Daniela M Ferreira
The morbidity and mortality related to respiratory tract diseases is enormous, with hundreds of millions of individuals afflicted and four million people dying each year. Understanding the immunological processes in the mucosa that govern outcome following pathogenic encounter could lead to novel therapies. There is a need to study responses at mucosal surfaces in humans for two reasons: (i) Immunological findings in mice, or other animals, often fail to translate to humans. (ii) Compartmentalization of the immune system dictates a need to study sites where pathogens reside...
2017: PloS One
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