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https://www.readbyqxmd.com/read/28430398/impact-of-acid-reducing-agents-on-the-pharmacokinetics-of-palbociclib-a-weak-base-with-ph-dependent-solubility-with-different-food-intake-conditions
#1
Wan Sun, Karen J Klamerus, Lisa M Yuhas, Sylvester Pawlak, Anna Plotka, Melissa O'Gorman, Leonid Kirkovsky, Maha Kosa, Diane Wang
Palbociclib free base capsule is a weak base drug with highly pH-dependent solubility. In vitro and in vivo studies evaluated the impact of acid-reducing agents on exposure of palbociclib and determined whether the impact, if any, can be mitigated by food. A drug-drug interaction study (study 1) was conducted first under fasted conditions and showed that coadministration of multiple doses of the proton-pump inhibitor rabeprazole substantially reduced palbociclib mean area under the concentration-time curve from time 0 to infinity and maximum observed plasma concentration by 62% and 80%, respectively...
April 21, 2017: Clinical Pharmacology in Drug Development
https://www.readbyqxmd.com/read/28425596/histamine-intolerance-in-chronic-urticaria
#2
R Jarisch
No abstract text is available yet for this article.
April 2017: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/28420945/controversies-and-recent-developments-of-the-low-fodmap-diet
#3
Peta Hill, Jane G Muir, Peter R Gibson
The low-fermentable oligo-, di-, and monosaccharide and polyol (FODMAP) diet is a 2-phased intervention, with strict reduction of all slowly absorbed or indigestible short-chain carbohydrates (ie, FODMAPs) followed by reintroduction of specific FODMAPs according to tolerance. The efficacy of the elimination phase of the FODMAP diet is well established, but the success of maintaining this diet has been shown in only a few observational studies. How the efficacy of the low-FODMAP diet compares with that of other therapies has received limited attention, but recent studies have shown this diet to be comparable or superior to diets that address eating style and choice of food as well as to gut hypnotherapy...
January 2017: Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/28420489/mast-cells-emerge-as-mediators-of-atherosclerosis-special-emphasis-on-il-37-inhibition
#4
REVIEW
Pio Conti, Gianfranco Lessiani, Spyridon K Kritas, Gianpaolo Ronconi, Aessandro Caraffa, Theoharis C Theoharides
In atherosclerosis lipoproteins stimulate the innate immune response, leading to the release of inflammatory cytokines and chemokines. Hypercholesterolemia may activate the synthesis and release of inflammatory cytokines such as IL-1, which induces TNF release in mast cells (MCs). IL-1 and IL-1 family members orchestrate a broadening list of inflammatory diseases, including atherosclerosis. MCs are implicated in the pathophysiology of several diseases including allergy and inflammation. Activated MCs, located perivascularly, contribute to inflammation in atherosclerosis by producing inflammatory cytokines...
April 12, 2017: Tissue & Cell
https://www.readbyqxmd.com/read/28419984/topical-histamine-stimulates-repigmentation-of-nonsegmental-vitiligo-by-a-receptor-dependent-mechanism
#5
Jun Liu, Yan Xu, Tzu-Kai Lin, Chengzhi Lv, Peter M Elias, Mao-Qiang Man
BACKGROUND: Though vitiligo is a common depigmentary disorder, it still represents a substantial therapeutic challenge. Therapeutic options are limited in part due to its uncertain etiology. OBJECTIVE: Because recent studies suggest that histamine stimulates melanogenesis in vitro, we determined here whether topical histamine stimulates repigmentation in patients with stable, nonsegmental vitiligo. METHODS: A total of 23 otherwise normal volunteers with vitiligo, including 14 males and 9 females aged 6-59 years (mean age 29...
April 19, 2017: Skin Pharmacology and Physiology
https://www.readbyqxmd.com/read/28417934/expression-of-adenosine-a2b-receptor-and-adenosine-deaminase-in-rabbit-gastric-mucosa-ecl-cells
#6
Rosa María Arin, Ana Isabel Vallejo, Yuri Rueda, Olatz Fresnedo, Begoña Ochoa
Adenosine is readily available to the glandular epithelium of the stomach. Formed continuously in intracellular and extracellular locations, it is notably produced from ATP released in enteric cotransmission. Adenosine analogs modulate chloride secretion in gastric glands and activate acid secretion in isolated parietal cells through A2B adenosine receptor (A2BR) binding. A functional link between surface A2BR and adenosine deaminase (ADA) was found in parietal cells, but whether this connection is a general feature of gastric mucosa cells is unknown...
April 12, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28416076/sweat-allergy-extrinsic-or-intrinsic
#7
REVIEW
Takaaki Hiragun, Makiko Hiragun, Kaori Ishii, Takanobu Kan, Michihiro Hide
Sweat is an exacerbation factor in atopic dermatitis (AD) in all age groups. A body core temperature elevation with sweating triggers cholinergic urticaria (CholU). We recently reported that AD symptoms are improved by tannic acid-containing spray, which suppresses the basophil histamine release induced by semi-purified sweat antigen in vitro, and by showering, which removes antigens in sweat from the skin surface. Sweat contains small amount of proteins including proteases, protease inhibitors, and anti-microbial peptides...
March 9, 2017: Journal of Dermatological Science
https://www.readbyqxmd.com/read/28415988/the-efficacy-and-safety-of-mivacurium-in-pediatric-patients
#8
Ruifeng Zeng, Xiulan Liu, Jing Zhang, Ning Yin, Jian Fei, Shan Zhong, Zhiyong Hu, Miaofeng Hu, Mazhong Zhang, Bo Li, Jun Li, Qingquan Lian, Wangning ShangGuan
BACKGROUND: Mivacurium is the shortest acting nondepolarizing muscle relaxant currently available; however, the effect of different dosages and injection times of intravenous mivacurium administration in children of different ages has rarely been reported. This study was aimed to evaluate the muscle relaxant effects and safety of different mivacurium dosages administered over different injection times in pediatric patients. METHODS: Six hundred forty cases of pediatric patients, aged 2 m-14 years, ASA I or II, were divided into four groups (Groups A, B, C, D) according to the age class (2-12 m, 13-35 m, 3-6 years and 7-14 years) respectively, also each group were divided into four subgroups by induction dose (0...
April 17, 2017: BMC Anesthesiology
https://www.readbyqxmd.com/read/28414061/mechanistic-correlates-of-clinical-responses-to-omalizumab-in-the-setting-of-oral-immunotherapy-for-milk-allergy
#9
Pamela A Frischmeyer-Guerrerio, Madhan Masilamani, Wenjuan Gu, Erica Brittain, Robert Wood, Jennifer Kim, Kari Nadeau, Kirsi M Jarvinen, Alexander Grishin, Robert Lindblad, Hugh A Sampson
BACKGROUND: In our recent clinical trial, the addition of omalizumab to oral immunotherapy (OIT) for milk allergy improved safety but no significant clinical benefit was detected. OBJECTIVE: To investigate mechanisms by which omalizumab modulates immunity in the context of OIT, and to identify baseline biomarkers that predict subgroups of patients most likely to benefit from omalizumab. METHODS: Blood was obtained at baseline and multiple time-points during a placebo-controlled trial of OIT for milk allergy where subjects were randomized to receive omalizumab or placebo...
April 13, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28412413/activation-of-muscarinic-receptors-prevents-tnf-%C3%AE-mediated-intestinal-epithelial-barrier-disruption-through-p38-mapk
#10
Junsuke Uwada, Takashi Yazawa, Md Tariqul Islam, Md Rafiqul Islam Khan, Susanne M Krug, Michael Fromm, Shin-Ichiro Karaki, Yuichi Suzuki, Atsukazu Kuwahara, Hatsumi Yoshiki, Kiyonao Sada, Muramatsu, Takanobu Taniguchi
Intestinal epithelial cells form a tight barrier to act as selective physical barriers, repelling hostile substances. Tumor necrosis factor-α (TNF-α) is a well characterized pro-inflammatory cytokine which can compromise intestinal barrier function and the suppression of TNF-α function is important for treatment of inflammatory bowel disease (IBD). In this study, we investigated the contribution of G-protein-coupled receptor (GPCR)-induced signalling pathways to the maintenance of epithelial barrier function...
April 12, 2017: Cellular Signalling
https://www.readbyqxmd.com/read/28407947/tuneable-surface-enhanced-raman-spectroscopy-hyphenated-to-chemically-derivatized-thin-layer-chromatography-plates-for-screening-histamine-in-fish
#11
Zhengjun Xie, Yang Wang, Yisheng Chen, Xueming Xu, Zhengyu Jin, Yunlian Ding, Na Yang, Fengfeng Wu
Reliable screening of histamine in fish was of urgent importance for food safety. This work presented a highly selective surface enhanced Raman spectroscopy (SERS) method mediated by thin-layer chromatography (TLC), which was tailored for identification and quantitation of histamine. Following separation and derivatization with fluram, plates were assayed with SERS, jointly using silver nanoparticle and NaCl. The latter dramatically suppressed the masking effect caused by excessive fluram throughout the plate, thus offering clear baseline and intensive Raman fingerprints specific to the analyte...
September 1, 2017: Food Chemistry
https://www.readbyqxmd.com/read/28407357/the-inhibitory-effect-of-nodakenin-on-mast-cell-mediated-allergic-inflammation-via-downregulation-of-nf-%C3%AE%C2%BAb-and-caspase-1-activation
#12
Na Young Lee, Kyung-Sook Chung, Jong Sik Jin, Minho Lee, Young-Cheol Lee, Hyo-Jin An
Nodakenin, a coumarin isolated from the roots of Angelicae gigas, is effective for treating function control disorders, bacterial infections, pain, diarrhea, vitamin E deficiency, and for relaxation of the uterus. The aim of this study was to investigate the antiallergic related inflammatory effects in phorbol-12-myristate 13-acetate plus calcium ionophore A23187 (PMACI)-stimulated human mast cells (HMC-1) or anaphylactic activity in a mouse model. Nodakenin inhibited the mRNA expression and production of pro-inflammatory cytokines such as tumor necrosis factor (TNF)-α, interleukin (IL)-6, and IL-1β in PMACI-stimulated HMC-1...
April 13, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28405953/angioedema-in-the-emergency-department-a-practical-guide-to-differential-diagnosis-and-management
#13
REVIEW
Jonathan A Bernstein, Paolo Cremonesi, Thomas K Hoffmann, John Hollingsworth
BACKGROUND: Angioedema is a common presentation in the emergency department (ED). Airway angioedema can be fatal; therefore, prompt diagnosis and correct treatment are vital. OBJECTIVE OF THE REVIEW: Based on the findings of two expert panels attended by international experts in angioedema and emergency medicine, this review aims to provide practical guidance on the diagnosis, differentiation, and management of histamine- and bradykinin-mediated angioedema in the ED...
December 2017: International Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28405073/benign-pancreatic-hyperenzymemia-gullo-syndrome-histamine-intolerance-and-carbohydrate-malabsorption
#14
Wolfgang J Schnedl, Dietmar Enko, Harald Mangge, Michael Schenk, Sonja Lackner, Sandra J Holasek
Benign pancreatic hyperenzymemia (Gullo syndrome) is characterized by a more than threefold increase of the pancreatic enzymes lipase and amylase in the absence of a pancreatic disease over a period of more than 1 year, with elevations and significant undulations of pancreatic enzyme serum concentrations occurring on a day-to-day basis for 5 consecutive days. Nonspecific abdominal complaints may be caused by carbohydrate and/or protein malabsorption. We report a patient with benign pancreatic hyperenzymemia with lactose and histamine malabsorption; the symptoms of gastrointestinal malabsorption were treated successfully with an individually tailored lactose- and histamine-free diet...
April 2017: Proceedings of the Baylor University Medical Center
https://www.readbyqxmd.com/read/28403743/nonclinical-profile-of-blz-100-a-tumor-targeting-fluorescent-imaging-agent
#15
Julia Parrish-Novak, Kelly Byrnes-Blake, Narine Lalayeva, Stefanie Burleson, Janean Fidel, Rhonda Gilmore, Pamela Gayheart-Walsten, Gregory A Bricker, William J Crumb, K S Tarlo, Stacey Hansen, Valorie Wiss, Errol Malta, William S Dernell, James M Olson, Dennis M Miller
BLZ-100 is a single intravenous use, fluorescent imaging agent that labels tumor tissue to enable more complete and precise surgical resection. It is composed of a chlorotoxin peptide covalently bound to the near-infrared fluorophore indocyanine green. BLZ-100 is in clinical development for intraoperative visualization of human tumors. The nonclinical safety and pharmacokinetic (PK) profile of BLZ-100 was evaluated in mice, rats, canines, and nonhuman primates (NHP). Single bolus intravenous administration of BLZ-100 was well tolerated, and no adverse changes were observed in cardiovascular safety pharmacology, PK, and toxicology studies in rats and NHP...
March 2017: International Journal of Toxicology
https://www.readbyqxmd.com/read/28401403/analysis-of-antimicrobial-and-immunomodulatory-substances-produced-by-heterofermentative-lactobacillus-reuteri
#16
Gabriela Greifová, Hyacinta Májeková, Gabriel Greif, Patrik Body, Maria Greifová, Martina Dubničková
Antimicrobial and immunomodulatory potential of various Lactobacillus reuteri strains is closely connected to their metabolite production profile under given cultivation conditions. We determined the in vitro production of antimicrobial substances such as organic acids, ethanol, and reuterin by four strains of L. reuteri (L. reuteri E, L. reuteri KO5, L. reuteri CCM 3625, and L. reuteri ATCC 55730). All studied L. reuteri strains showed the ability to produce lactic acid, acetic acid, and ethanol with concominant consumption of glucose and together with phenyllactic acid-a potent antifungal compound-with concominant consumption of phenylalanine...
April 11, 2017: Folia Microbiologica
https://www.readbyqxmd.com/read/28401082/vaccinium-angustifolium-root-extract-suppresses-fc%C3%A9-ri-expression-in-human-basophilic-ku812f-cells
#17
Sun Yup Shim, Kyung Dong Lee, Mina Lee
Vaccinium angustifolium, commonly known as the lowbush blueberry, is a rich source of flavonoids, with which various human physiological activities have been associated. The present study focuses on the investigation of the effect of the methanolic extract of V. angustifolium root extract (VAE) on high affinity immunoglobulin E receptor (FcɛRI) α chain antibody (CRA-1)-induced allergic reaction in human basophilic KU812F cells. The total phenolic content of VAE was found to be 170±1.9 mg gallic acid equivalents/g...
March 2017: Preventive Nutrition and Food Science
https://www.readbyqxmd.com/read/28400155/histaminergic-gene-polymorphisms-associated-with-sedation-in-clozapine-treated-patients
#18
Anssi Solismaa, Olli Kampman, Leo-Pekka Lyytikäinen, Niko Seppälä, Merja Viikki, Nina Mononen, Terho Lehtimäki, Esa Leinonen
Sedation is a common adverse effect of clozapine treatment, which may be partly related to clozapine binding to histamine receptors in the central nervous system. The objective of this study was to investigate whether single nucleotide polymorphisms (SNPs) in the histaminergic system are associated with sedation in clozapine-treated patients. The study population comprised 237 clozapine-treated, Finnish, Caucasian patients that were diagnosed with schizophrenia and 176 were genotyped using Illumina HumanCoreExome-12 BeadChip...
April 8, 2017: European Neuropsychopharmacology: the Journal of the European College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28399090/-a-comparative-study-of-immune-and-clinical-indicators-in-radicular-and-myofascial-back-pain
#19
A I Levashova, V S Morozova, S N Petrochenko, М А Myagkova, I A Moseikin
AIM: To compare immunochemical and clinical parameters in patients with chronic radicular and myofascial back pain. MATERIAL AND METHODS: A study included 92 patients (55 men and 37 women) with radicular pain syndrome and 97 patients (33 men and 64 women) with myofascial pain syndrome. Pain status was assessed with the differential visual analogous scale (at rest, on movement, at night and during spontaneous pain). Tensor algometry was used to measure pain intolerance thresholds at day and night...
2017: Zhurnal Nevrologii i Psikhiatrii Imeni S.S. Korsakova
https://www.readbyqxmd.com/read/28398338/the-histamine-h3-receptor-antagonist-thioperamide-rescues-circadian-rhythm-and-memory-function-in-experimental-parkinsonism
#20
D Masini, C Lopes-Aguiar, A Bonito-Oliva, D Papadia, R Andersson, A Fisahn, G Fisone
Parkinson's disease (PD) is a common neurodegenerative disorder, characterized by motor impairment and a wide range of non-motor symptoms, including sleep disorders and cognitive and affective deficits. In this study, we used a mouse model of PD based on 6-hydroxydopamine (6-OHDA) to examine the effect of thioperamide, a histamine H3 receptor antagonist, on circadian activity, recognition memory and anxiety. A partial, bilateral 6-OHDA lesion of the striatum reduces motor activity during the active phase of the 24 h cycle...
April 11, 2017: Translational Psychiatry
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