نتایج جستجو برای: foam cells

تعداد نتایج: 1396021  

Journal: :American journal of physiology. Cell physiology 2007
Bin Zhao Jingmei Song Richard W St Clair Shobha Ghosh

Reduction of the lipid burden of atherosclerotic lesion-associated macrophage foam cells is a logical strategy to reduce the plaque volume. Since extracellular cholesterol acceptor-mediated cholesterol efflux is the only recognized mechanism of cholesterol removal from foam cells and this process is rate limited at the level of intracellular cholesterol ester hydrolysis, a reaction catalyzed by...

2015
Anita C. Thomas Wouter J. Eijgelaar Mat J. A. P. Daemen Andrew C. Newby Christian Schulz

Formation of foam cell macrophages, which sequester extracellular modified lipids, is a key event in atherosclerosis. How lipid loading affects macrophage phenotype is controversial, with evidence suggesting either pro- or anti-inflammatory consequences. To investigate this further, we compared the transcriptomes of foamy and non-foamy macrophages that accumulate in the subcutaneous granulomas ...

Journal: :Arteriosclerosis, thrombosis, and vascular biology 2014
Sadeep Shrestha Marguerite R Irvin Carl Grunfeld Donna K Arnett

Atherosclerosis is consistently higher among the HIV-positive patients, with or without treatment, than among the HIV-negative population. Risk factors linked to atherosclerotic cardiovascular disease in HIV infection are both traditional and HIV specific although the underlying mechanisms are not fully delineated. Three key sequential biological processes are postulated to accelerate progressi...

Journal: :Journal of clinical pathology 1958
H R HARRIS

Dubs (1923) and Nunes (1945) each described a case of adenocarcinoma of the body of the uterus in which foam cells were present in the stroma of the neoplasm; these are the only instances recorded in the literature. Foam cells do not seem to have been previously reported as occurring in the stroma of uterine cervical polypi. Two cases of this condition have been observed recently in cervical po...

2014
Mark A. Bernard Xinbing Han Sonya Inderbitzin Ifunanya Agbim Hui Zhao Henry Koziel Souvenir D. Tachado

Even though combined anti-retroviral therapy (cART) dramatically improves patient survival, they remain at a higher risk of being afflicted with non-infectious complications such as cardiovascular disease (CVD). This increased risk is linked to persistent inflammation and chronic immune activation. In this study, we assessed whether this complication is related to HIV-derived ssRNAs inducing in...

Journal: :journal of food biosciences and technology 0
m. khezri m. sc. student of the department of food science and technology, shahr-e-qods branch, islamic azad university, tehran, iran. sh. shahriari assistant professor of the department of chemical engineering, shahr-e-qods branch, islamic azad university, tehran, iran. l. shahsavani academic memder of the department of food science and technology, shahr-e-qods branch, islamic azad university, tehran, iran.

milk-based espresso coffee is one of the most popular beverages. foam is an essential quality characteristic for this beverage. foam formation and stability is mainly related to the milk composition. in this study the influence of three different concentrations of xanthan gum (0.05, 0.1 and 0.2 g dm-3) and three different temperatures (50, 60 and 70 °c) on foam stability were examined and exper...

Journal: :The Journal of clinical investigation 1993
L Mattsson H Johansson M Ottosson G Bondjers O Wiklund

The expression of lipoprotein lipase (LPL) mRNA and the LPL activity were studied in macrophages (CD14 positive) from human atherosclerotic tissue. Macrophages were isolated after collagenase digestion by immunomagnetic isolation. About 90% of the cells were foam cells with oil red O positive lipid droplets. To analyze the mRNA expression, PCR with specific primers for LPL was used. Arterial ma...

2017
Haixiang Zheng Yucai Fu Yusheng Huang Xinde Zheng Wei Yu Wei Wang

Atherosclerosis (AS) is a chronic immuno‑inflammatory disease accompanied by dyslipidemia. The authors previously demonstrated that sirtuin 1 (SIRT1) may prevent atherogenesis through influencing the liver X receptor/C‑C chemokine receptor type 7/nuclear factor‑κB (LXR‑CCR7/NF‑κB) signaling pathway. Previous studies have suggested a role for mammalian target of rapamycin (mTOR) signaling in the...

Journal: :Remote Sensing 2012
Magdalena D. Anguelova Peter W. Gaiser

Foam fraction can be retrieved from space-based microwave radiometric data at frequencies from 1 to 37 GHz. The retrievals require modeling of ocean surface emissivity fully covered with sea foam. To model foam emissivity well, knowledge of foam properties, both mechanical and dielectric, is necessary because these control the radiative processes in foam. We present a physical description of fo...

The annular foam breaker is one which uses the vacuum and shear force generated by the Coanda effect to break foam. The pressure distribution directly affects its performance. So an investigation on the flow characteristics inside the annular foam breaker is important to optimize its structure. In this paper, the computational fluid dynamics (CFD) code, FLUENT, is employed to simulate the flow ...

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