Potential Role of Cytokines in Children with Acute Appendicitis and Acute Mesenteric Lymphadenitis

2011 ◽  
Vol 11 (1) ◽  
pp. 130-133
Author(s):  
Astra Zviedre ◽  
Arnis Engelis ◽  
Mohit Kakar ◽  
Aigars Pētersons

Potential Role of Cytokines in Children with Acute Appendicitis and Acute Mesenteric Lymphadenitis Although, AAP and AML have different etiological factors, clinical symptoms are very much similar but treatment tactics in both the disease differ a lot. In case of AML, treatment is more conservative and does not require hospitalization while in case of AAP immediate hospitalization and maybe further surgery can be mandatory. With the identification of group of cytokines serum inflammatory mediators IL-8, IL-10, IL-12[p70], IL-17, TNF-a and MCP-1, it is believed early and proper diagnosis of AAP in the near future. Research of cytokines-serum inflammatory mediators has opened new opportunities for an early detection and differentiation of these two diseases in children.

2021 ◽  
Author(s):  
Francisco Ruiz-Raya

Abstract Egg rejection is the most effective and widespread defence used by host species to counteract the extreme fitness costs frequently imposed by obligate avian brood parasites. Yet, the proximate mechanisms underlying between- and within-individual variation in host responses remain poorly explored. Emerging evidence suggests that egg rejection is dependent on individual physiological state, and draws attention to the role of hormones as mediators of flexible antiparasitic responses. In this perspective article, I outline recent advances in our understanding of the proximate factors that mediate egg rejection. I also point out some areas where knowledge remains still lacking, especially those related to the development and maintenance of effective cognitive functions, the potential role of oxidative stress, immunological state and developmental stressors. I propose new hypotheses that stimulate future research on behavioural host responses towards brood parasitism.


2020 ◽  
Vol 8 (3) ◽  
pp. 345-360
Author(s):  
Ece Ömüriş ◽  
Ferda Erdem ◽  
Janset Özen Aytemur

PurposeThis study aims to investigate the relationship between cooperative and competitive behavioral tendencies and trust of coworkers in organizations. Two main hypotheses were developed. The first hypothesis was that cooperativeness and trust in coworkers is positively correlated. The second hypothesis was that competitiveness and trust in coworkers is negatively correlated.Design/methodology/approachThe sample was 442 Turkish tourism sector employees in a labor-intensive industry. Two scales were used to measure trust in coworkers and cooperativeness/competitiveness. A hierarchical regression analysis was performed to understand how individuals' behavioral tendency affects their coworkers' trust in them.FindingsThe findings strongly supported the first hypothesis, in that cooperativeness was positively correlated with trust in coworkers. The second hypothesis was only partially supported because there was no significant relationship between competitiveness and the competency and trustworthiness dimensions of trust. Unselfishness aspect of trust, however, was negatively correlated with competitiveness.Research limitations/implicationsThe main contribution of this study is to show that employee cooperativeness and competitiveness can affect trust in coworker relations. However, the measurement of competitiveness and cooperativeness measurement had limitations due to differences in the culture-specific meanings of cooperation and competition. Future research employing mixed methods research is needed to further explain the content of the two tendencies and the relationship between the concepts.Originality/valueThe literature on trust and employee relations tends to focus more on the issue of trust between managers and subordinates while neglecting the complex and multifaceted structure of trust in employee–employer relations. However, new working forms mean that horizontal relations are increasingly important. Therefore, more research is needed to address the tendencies and structures that affect trust in coworkers. This study draws attention to the potential role of cooperative and competitive behaviors in trust in horizontal employee relations.


2010 ◽  
Vol 26 (7) ◽  
pp. 951-953 ◽  
Author(s):  
Emmanuel C. Obusez ◽  
Yiding Liu ◽  
Ana E. Bennett ◽  
Feza H. Remzi ◽  
Baochuan Guo ◽  
...  

2021 ◽  
Vol 9 (4) ◽  
pp. 54
Author(s):  
Navneet Dogra ◽  
Carmen Ledesma-Feliciano ◽  
Rwik Sen

With over 4.8 million deaths within 2 years, time is of the essence in combating COVID-19. The infection now shows devastating impacts on the younger population, who were not previously predicted to be vulnerable, such as in the older population. COVID-19-related complications have been reported in neonates whose mothers were infected with SARS-CoV-2 during pregnancy, and in children who get infected. Hence, a deeper understanding of the pathophysiology of COVID-19 during various developmental stages and placental transmission is essential. Although a connection has not yet been established between exosomal trafficking and the placental transmission of COVID-19, reports indicate that SARS-CoV-2 components may be trafficked between cells through exosomes. As the infection spreads, the transcriptome of cells is drastically perturbed, e.g., through the severe upregulation of several immune-related genes. Consequently, a major outcome of COVID-19 is an elevated immune response and the detection of viral RNA transcripts in host tissue. In this direction, this review focuses on SARS-CoV-2 virology, its in utero transmission from infected pregnant mothers to fetuses, SARS-CoV-2 and exosomal cellular trafficking, transcriptomic impacts, and RNA-mediated therapeutics against COVID-19. Future research will establish stronger connections between the above processes to develop diagnostic and therapeutic solutions towards COVID-19 and similar viral outbreaks.


2012 ◽  
Vol 16 (1) ◽  
pp. 73 ◽  
Author(s):  
Rooban Thavarajah ◽  
KM Vidya ◽  
Elizabeth Joshua ◽  
UmadeviK Rao ◽  
K Ranganathan

2020 ◽  
Vol 21 (22) ◽  
pp. 8630
Author(s):  
Filippo Sean Giorgi ◽  
Francesca Biagioni ◽  
Alessandro Galgani ◽  
Nicola Pavese ◽  
Gloria Lazzeri ◽  
...  

Locus Coeruleus (LC) is the main noradrenergic nucleus of the central nervous system, and its neurons widely innervate the whole brain. LC is severely degenerated both in Alzheimer’s disease (AD) and in Parkinson’s disease (PD), years before the onset of clinical symptoms, through mechanisms that differ among the two disorders. Several experimental studies have shown that noradrenaline modulates neuroinflammation, mainly by acting on microglia/astrocytes function. In the present review, after a brief introduction on the anatomy and physiology of LC, we provide an overview of experimental data supporting a pathogenetic role of LC degeneration in AD and PD. Then, we describe in detail experimental data, obtained in vitro and in vivo in animal models, which support a potential role of neuroinflammation in such a link, and the specific molecules (i.e., released cytokines, glial receptors, including pattern recognition receptors and others) whose expression is altered by LC degeneration and might play a key role in AD/PD pathogenesis. New imaging and biochemical tools have recently been developed in humans to estimate in vivo the integrity of LC, the degree of neuroinflammation, and pathology AD/PD biomarkers; it is auspicable that these will allow in the near future to test the existence of a link between LC-neuroinflammation and neurodegeneration directly in patients.


Antioxidants ◽  
2020 ◽  
Vol 9 (7) ◽  
pp. 631
Author(s):  
Doaa M. Hanafy ◽  
Geoffrey E. Burrows ◽  
Paul D. Prenzler ◽  
Rodney A. Hill

With an increase in the longevity and thus the proportion of the elderly, especially in developed nations, there is a rise in pathological conditions that accompany ageing, such as neurodegenerative disorders. Alzheimer’s disease (AD) is a neurodegenerative disease characterized by progressive cognitive and memory decline. The pathophysiology of the disease is poorly understood, with several factors contributing to its development, such as oxidative stress, neuroinflammation, cholinergic neuronal apoptotic death, and the accumulation of abnormal proteins in the brain. Current medications are only palliative and cannot stop or reverse the progression of the disease. Recent clinical trials of synthetic compounds for the treatment of AD have failed because of their adverse effects or lack of efficacy. Thus, there is impetus behind the search for drugs from natural origins, in addition to the discovery of novel, conventional therapeutics. Mints have been used traditionally for conditions relevant to the central nervous system. Recent studies showed that mint extracts and/or their phenolic constituents have a neuroprotective potential and can target multiple events of AD. In this review, we provide evidence of the potential role of mint extracts and their derivatives as possible sources of treatments in managing AD. Some of the molecular pathways implicated in the development of AD are reviewed, with focus on apoptosis and some redox pathways, pointing to mechanisms that may be modulated for the treatment of AD, and the need for future research invoking knowledge of these pathways is highlighted.


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