scholarly journals Role of Heme Oxygenase in Inflammation, Insulin-Signalling, Diabetes and Obesity

2010 ◽  
Vol 2010 ◽  
pp. 1-18 ◽  
Author(s):  
Joseph Fomusi Ndisang
Keyword(s):  
Heme Oxygenase ◽  
Chronic Conditions ◽  
Insulin Signalling ◽  
Common Denominator ◽  
Necrosis Factor Alpha ◽  
Factor Alpha ◽  
End Stage ◽  
Diabetes And Obesity

Diabetes and obesity are chronic conditions associated with elevated oxidative/inflammatory activities with a continuum of tissue insults leading to more severe cardiometabolic and renal complications including myocardial infarction and end-stage-renal damage. A common denominator of these chronic conditions is the enhanced the levels of cytokines like tumour necrosis factor-alpha (TNF-α), interleukin (IL-6), IL-1βand resistin, which in turn activates the c-Jun-N-terminal kinase (JNK) and NF-κB pathways, creating a vicious cycle that exacerbates insulin resistance, type-2 diabetes and related complications. Emerging evidence indicates that heme oxygenase (HO) inducers are endowed with potent anti-diabetic and insulin sensitizing effects besides their ability to suppress immune/inflammatory response. Importantly, the HO system abates inflammation through several mechanisms including the suppression of macrophage-infiltration and abrogation of oxidative/inflammatory transcription factors like NF-κB, JNK and activating protein-1. This review highlights the mechanisms by which the HO system potentiates insulin signalling, with particular emphasis on HO-mediated suppression of oxidative and inflammatory insults. The HO system could be explored in the search for novel remedies against cardiometabolic diseases and their complications.

scholarly journals Clinical and epidemiological features of urinary tract infection in children of Primorsky Krai

2019 ◽  
pp. 10-13
Author(s):  
A. Nее ◽  
E. V. Sergeeva ◽  
O. G. Bykova ◽  
O. V. Semeshina ◽  
A. V. Gordeets
Keyword(s):  
Urinary Tract ◽  
Renal Hypertension ◽  
Kidney Tissue ◽  
Necrosis Factor Alpha ◽  
Medical Institutions ◽  
Factor Alpha ◽  
Tract Infections ◽  
Hypertension In Children

Summary: The review covers the findings of the epidemiological trial on urinary tract infections (UTI) incidence, acute and chronic pyelonephritis in children of Primorsky territory. The significant impact of environmental climatic and heliogeophysical risk factors on pyelonephritis morbidity in children was detected. The most significant factors of UTI development in Primorsky territory were defined. Clinical and laboratory features of this pathology in children at the present day are represented. The ideas of pathogenesis of bacterial inflammation in urinary tract have been broaden. The role of tumor necrosis factor-alpha and its type 2 soluble receptor in persistence and in progression of the inflammation process, which can lead to non-reversible sclerotic changes in kidney tissue, was determined. The role of nitrogen oxide in pathogenetic mechanisms of renal hypertension in children was determined. The complex rehabilitation of patients with local mineral water was considered. The obtained data can be used in further researches, in the work of children›s medical institutions of cities and regions of Primorsky territory.

Regulation of microRNAs in Inflammation-Associated Colorectal Cancer: A Mechanistic Approach

2020 ◽  
Vol 20 ◽  
Author(s):  
Sridhar Muthusami ◽  
Ilangovan Ramachandran ◽  
Sneha Krishnamoorthy ◽  
Yuvaraj Sambandam ◽  
Satish Ramalingam ◽  
...  
Keyword(s):  
Colorectal Cancer ◽  
Molecular Mechanisms ◽  
Colorectal Carcinogenesis ◽  
Model Systems ◽  
Necrosis Factor Alpha ◽  
Multi Stage ◽  
Mechanistic Approach ◽  
Tnf Α ◽  
Factor Alpha

: The development of colorectal cancer (CRC) is a multi-stage process. The inflammation of the colon as in inflammatory bowel disease (IBD) such as ulcerative colitis (UC) or Crohn’s disease (CD) is often regarded as the initial trigger for the development of CRC. Many cytokines such as tumor necrosis factor alpha (TNF-α) and several interleukins (ILs) are known to exert proinflammatory actions, and inflammation initiates or promotes tumorigenesis of various cancers, including CRC through differential regulation of microRNAs (miRNAs/miRs). miRNAs can be oncogenic miRNAs (oncomiRs) or anti-oncomiRs/tumor suppressor miRNAs, and they play key roles during colorectal carcinogenesis. However, the functions and molecular mechanisms of regulation of miRNAs involved in inflammation-associated CRC are still anecdotal and largely unknown. Consolidating the published results and offering perspective solutions to circumvent CRC, the current review is focused on the role of miRNAs and their regulation in the development of CRC. We have also discussed the model systems adapted by researchers to delineate the role of miRNAs in inflammation-associated CRC.

scholarly journals Mannoproteins from Cryptococcus neoformans Promote Dendritic Cell Maturation and Activation

2005 ◽  
Vol 73 (2) ◽  
pp. 820-827 ◽  
Author(s):  
Donatella Pietrella ◽  
Cristina Corbucci ◽  
Stefano Perito ◽  
Giovanni Bistoni ◽  
Anna Vecchiarelli
Keyword(s):  
Cryptococcus Neoformans ◽  
Nuclear Factor Κb ◽  
Dendritic Cell Maturation ◽  
Interleukin 12 ◽  
Necrosis Factor Alpha ◽  
Histocompatibility Complex ◽  
Factor Alpha ◽  
Human Dendritic Cells ◽  
Mannose Receptors

ABSTRACT Our previous data show that mannoproteins (MPs) from Cryptococcus neoformans are able to induce protective responses against both C. neoformans and Candida albicans. Here we provide evidence that MPs foster maturation and activation of human dendritic cells (DCs). Maturation was evaluated by the ability of MPs to facilitate expression of costimulatory molecules such as CD40, CD86, CD83, and major histocompatibility complex classes I and II and to inhibit receptors such as CD14, CD16, and CD32. Activation of DCs was measured by the capacity of MPs to promote interleukin-12 and tumor necrosis factor alpha secretion. DC-induced maturation and interleukin-12 induction are largely mediated by engagement of mannose receptors and presume MP internalization and degradation. DC activation leads to IκBα phosphorylation, which is necessary for nuclear factor κB transmigration into the nucleus. MP-loaded DCs are efficient stimulators of T cells and show a remarkable capacity to promote CD4 and CD8 proliferation. In conclusion, we have evidenced a novel regulatory role of MPs that promotes their candidacy as a vaccine against fungi.

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