In this task, you're given a paragraph from the research paper and your task is to generate a suitable title for the research paper based on the given paper. Under 100 words is a good title length.

Please cite this article as: El-Shall N.A., Shewita R.S., Abd El-Hack M.E., AlKahtane A., Alarifi S., Alkahtani S., Abdel-Daim M.M. & Sedeik M.E., Effect of essential oils on the immune response to some viral vaccines in broiler chickens, with special reference to Newcastle disease virus, Poultry Science (2020), doi: https://doi.(Mohamed E. Abd El-Hack). 21 (1952±28.82) did not significantly (p>0.05) improve growth performance compared to 41 the non-treated birds (NC and VC) (1970±19.56 and 1904±38.66). Essential oils 42 showed an antiviral effect on vNDv in vivo (in chickens) as a preventive measure 43 (PRV) as well as some therapeutic effect (TTT) through decreasing the viral shedding 44 titres (loNC 0 ), mortality rate, and severity of clinical signs and post mortem lesions, in 45 addition to serum malondialdhyde (MDA) level. Regarding the other viruses, the EOs 46 mixture did not improve the immune response to the AI and IB vaccines but age (2108±341.05). The studied EOs mixture showed an immune stimulating response 49 to ND and IBD vaccines, antiviral effect against ND virus especially if administered 50 before the challenge, however it did not have a growth promoting effect. 51 52
Journal Pre-proof Effect of essential oils on the immune response to some viral vaccines in broiler chickens, with special reference to Newcastle disease virus Effect of essential oils on the immune response to some viral vaccines in broiler 3 chickens, with special reference to Newcastle disease virus 4

One sentence summary: CmpA is an OmpA-like protein in Legionella pneumophila that is required for efficient intracellular replication in both primary macrophages and in the environmental host Acanthamoeba castellanii. Editor: Akio Nakane The OmpA-like protein domain has been associated with peptidoglycan-binding proteins, and is often found in virulence factors of bacterial pathogens. The intracellular pathogen Legionella pneumophila encodes for six proteins that contain the OmpA-like domain, among them the highly conserved uncharacterized protein we named CmpA. Here we set out to characterize the CmpA protein and determine its contribution to intracellular survival of L. pneumophila. Secondary structure analysis suggests that CmpA is an inner membrane protein with a peptidoglycan-binding domain at the C-teminus. A cmpA mutant was able to replicate normally in broth, but failed to compete with an isogenic wild-type strain in an intracellular growth competition assay. The cmpA mutant also displayed significant intracellular growth defects in both the protozoan host Acanthamoeba castellanii and in primary bone marrow-derived macrophages, where uptake into the cells was also impaired. The cmpA phenotypes were completely restored upon expression of CmpA in trans. The data presented here establish CmpA as a novel virulence factor of L. pneumophila that is required for efficient intracellular replication in both mammalian and protozoan hosts.
A conserved OmpA-like protein in Legionella pneumophila required for efficient intracellular replication

Background. Middle East respiratory syndrome coronavirus (MERS-CoV) causes pneumonia with a relatively high case fatality rate in humans. Smokers and chronic obstructive pulmonary disease (COPD) patients have been reported to be more susceptible to MERS-CoV infection. Here, we determined the expression of MERS-CoV receptor, dipeptidyl peptidase IV (DPP4), in lung tissues of smokers without airflow limitation and COPD patients in comparison to nonsmoking individuals (never-smokers). Methods. DPP4 expression was measured in lung tissue of lung resection specimens of never-smokers, smokers without airflow limitation, COPD GOLD stage II patients and in lung explants of end-stage COPD patients. Both control subjects and COPD patients were well phenotyped and age-matched. The mRNA expression was determined using qRT-PCR and protein expression was quantified using immunohistochemistry. Results. In smokers and subjects with COPD, both DPP4 mRNA and protein expression were significantly higher compared to never-smokers. Additionally, we found that both DPP4 mRNA and protein expression were inversely correlated with lung function and diffusing capacity parameters. Conclusions. We provide evidence that DPP4 is upregulated in the lungs of smokers and COPD patients, which could partially explain why these individuals are more susceptible to MERS-CoV infection. These data also highlight a possible role of DPP4 in COPD pathogenesis. Keywords. Middle East respiratory syndrome coronavirus (MERS-CoV); dipeptidyl peptidase 4 (DPP4); smoking; chronic obstructive pulmonary disease (COPD).

DPP4, the Middle East Respiratory Syndrome Coronavirus Receptor, is Upregulated in Lungs of Smokers and Chronic Obstructive Pulmonary Disease Patients