نتایج جستجو برای: free β

تعداد نتایج: 684769  

M.R. Delnavazi* S. Pirveisiani T. Saadattalab

Background and objectives: Ferula gummosa Boiss. (Umbelliferae) is a popular medicinal plant, which is known mostly for therapeutic uses of its oleo-gum-resin (Barijeh in Persian). In the present study, the essential oil of F. gummosa roots was investigated for its phytochemical constituents, antioxidant activity and toxicity potential. Method...

2015
Shubhankar Suman Santosh Kumar Albert J. Fornace Kamal Datta

Although it is known that accumulation of oncogenic β-catenin is critical for intestinal tumorigenesis, the underlying mechanisms have not yet been fully explored. Post-translational β-catenin level is regulated via the adenomatous polyposis coli (APC)-dependent as well as the APC-independent ubiquitin-proteasome pathway (UPP). Employing an APC-mutant mouse model (APC(Min/+)) the present study ...

Journal: :iranian journal of pharmaceutical research 0
bahman nickavar department of pharmacognosy, school of pharmacy, shahid beheshti university of medical sciences javad rezaee department of pharmacognosy, school of pharmacy, shahid beheshti university of medical sciences, tehran, iran azar nickavar aliasghar children’s hospital, iran university of medical sciences, tehran, iran

salvia genus is one of the largest genera of the lamiaceae family. its species have been used for a wide variety of disorders in the local traditional medicine systems. therefore, the genus has been the subject of several phytochemical and biological studies. the aim of the study was to identify the major antioxidant compound(s) from the methanol extract of salvia verticillata using activity-gu...

2016
LEI WEI GUANGHUI ZHANG MAOLIN ZHOU M. ZHOU

We consider the influence of a shifting environment and an advection on the spreading of an invasive species through a model given by the diffusive logistic equation with a free boundary. When the environment is shifting and without advection (β = 0), Du, Wei and Zhou in [16] showed that the species always dies out when the shifting speed c∗ ≥ C, and the long-time behavior of the species is det...

Journal: :Genetics and molecular research : GMR 2015
L Chen M Yu T Shen J Xia B L Xu

We examined the influence of caffeine on the proliferation and apoptosis of β cells cultured in vitro in the presence of the free fatty acid palmitic acid (PA). Different concentrations of caffeine (1-100 mM) and free fatty PA were added to cultured β cells. The MTT assay was used to analyze cell proliferative activity; flow cytometry was used to measure apoptosis and calculate the apoptosis ra...

Journal: :International journal of pharmaceutics 2016
Amélia C F Vieira Arménio C Serra Francisco J Veiga António M d'A Rocha Gonsalves Abdul W Basit Sudaxshina Murdan

The aim of this in vivo study was to assess the ability of the prodrug conjugate diclofenac-β-cyclodextrin to release diclofenac in the colon following oral administration, using sulfapyridine (a metabolite of sulfasalazine) as a marker of colonic absorption. Two groups of rats were used; the test rats received a suspension containing the two prodrugs, diclofenac-β-cyclodextrin and sulfasalazin...

2011
Narad Rampersad Jeffrey Shallit Arseny M. Shur

An overlap is a word of the form axaxa, where a is a single letter and x is a (possibly empty) word. In 1980, Earl Fife [8] proved a theorem characterizing the infinite binary overlap-free words as encodings of paths in a finite automaton. Berstel [4] later simplified the exposition, and both Carpi [6] and Cassaigne [7] gave an analogous analysis for the case of finite words. In a previous pape...

Journal: :Fetal diagnosis and therapy 2012
Ghalia Ashoor Leona Poon Argyro Syngelaki Beatrice Mosimann Kypros H Nicolaides

OBJECTIVE It was the aim of this study to examine the possible effects of maternal and fetal characteristics on the fetal fraction in maternal plasma cell-free DNA (cfDNA) at 11-13 weeks' gestation. METHODS In a nested case-control study, cfDNA was extracted from maternal plasma obtained before chorionic villous sampling from 300 euploid, 50 trisomy 21 and 50 trisomy 18 pregnancies at 11-13 w...

Journal: :Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology 2011
H N Madsen S Ball D Wright N Tørring O B Petersen K H Nicolaides K Spencer

OBJECTIVE To estimate the difference between levels of the two biochemical markers pregnancy-associated plasma protein-A (PAPP-A) and maternal serum free β-human chorionic gonadotropin (free β-hCG) in twin pregnancies relative to singleton pregnancies and establish an improved screening procedure for chromosomal abnormalities such as trisomy 21 in twin pregnancies. METHODS 4843 unaffected and...

Journal: :Journal of Investigative Dermatology 2022

Epithelial-mesenchymal crosstalk is vital for balancing expansion and regression of the progenitor cell pool during tissue turnover. In hair growth cycle, little known about mechanisms underlying regulated death follicle that precedes each regeneration re-growth. Here, we discover dermal sheath smooth muscle, which lines all follicles, controls via transforming factor (TGF)-β mechanosignaling. ...

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