Evidence map›Paper›PMID 34022889›Full record

ArticleBMC veterinary research2021

The stimulation and inhibition of beta-2 adrenergic receptor on the inflammatory responses of ovary and immune system in the aged laying hens.

Ali Hatefi, Ahmad Zare Shahneh, Zarbakht Ansari Pirsaraie, Ali Mohammad Alizadeh, Mohammad Pouya Atashnak, Reza Masoudi, Frederic Pio

Open access · goldAbstract read
In one paragraph

Article in BMC veterinary research, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
0.7field-weighted citation impact, top 40% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

6 citing papers in PubMed, 10 citations in OpenAlex.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors at 5 institutions in 3 countries.

Ali HatefiDepartment of Animal Science, University of Tehran, Karaj, Iran. hatefi.ali@gmail.com.ORCID https://orcid.org/0000-0002-2173-9862
Ahmad Zare ShahnehDepartment of Animal Science, University of Tehran, Karaj, Iran.
Zarbakht Ansari PirsaraieDepartment of Animal Science, Sari Agricultural and Natural Resources University, Sari, Iran.
Ali Mohammad AlizadehCancer Research Center, Tehran University of Medical Sciences, Tehran, Iran.
Mohammad Pouya AtashnakMolecular Biology and Biochemistry Department, Simon Fraser University, Burnaby, British Columbia, Canada.
Reza MasoudiAnimal Science Research Institute of Iran (ASRI), Agricultural Research Education and Extension Organization (AREEO), Karaj, Iran.
Frederic PioMolecular Biology and Biochemistry Department, Simon Fraser University, Burnaby, British Columbia, Canada.
Simon Fraser University · CAUniversity of Tehran · IRAgricultural Research & Education Organization · IRSari Agricultural Sciences and Natural Resources University · IRTehran University of Medical Sciences · IR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundOvarian chronic inflammation has been known to incidence in the laying hen mainly via increasing laying frequency and microbial infection, especially during late stage of production period. This study was aimed to evaluate beta-2 adrenergic agonist (Beta-2 Adrenergic Agonist, BAA) Salmeterol and beta blocker (Beta Blocker, BB) Propranolol on the gene expression of the ovarian pro- and anti-inflammatory mediators, inflammatory responses of immune system, ovarian functions and, hormones in the laying hens on the late stage of production period. Forty-eight White Leghorn hens aged 92 weeks were used for 4 weeks to be supplemented by Salmeterol and Propranolol. Ovulation rate and follicular growth were determined based on laying frequency and ovarian visual evaluation, respectively; the mRNA expressions of follicular beta-2 adrenergic receptor (Beta-2 Adrenergic Receptor, β2ADR), cyclooxygenases (Cyclooxygenases, COX) 1 and 2, and cytokines were measured by real-time PCR. The plasma concentration of ovarian hormones, cellular, and humoral immune responses were measured via ELISA, heterophil to lymphocyte ratio (Heterophil to Lymphocyte ratio, H:L), and sheep red blood cell (Sheep Red Blood Cell, SRBC) test, respectively.

resultsAs compared to control, both of BAA Salmeterol and BB Propranolol resulted in a significant decrease in the mRNA expression of β2ADR, cyclooxygenases, and pro- and anti-inflammatory cytokines (P < 0.01). A significant elevation was observed in the ovulation rate (P < 0.05), plasma estradiol content on both treated groups (P < 0.05), and the content of progesterone and was just significantly (P < 0.05) increased in Salmeterol group. H:L was reduced in BAA group (P < 0.05), and immunoglobulin (Ig) M was elevated in both treated hens, when compared to control. The results indicated that Salmeterol significantly increases body weight (P < 0.05).

conclusionThe stimulation and inhibition of beta-2 adrenergic signaling could reduce ovarian inflammatory condition in addition to enhancing laying efficiency in the aged laying hens.

Indexed as

Adrenergic beta-2 Receptor AgonistsAdrenergic beta-AntagonistsAndrogensAnimalsChickensCytokinesEnzyme-Linked Immunosorbent AssayEstradiolFemaleImmune SystemImmunity, CellularImmunity, HumoralInflammation MediatorsOvaryProgesteronePropranololAdrenergic beta-2 Receptor AgonistsAdrenergic beta-AntagonistsAndrogensCytokinesEstradiolInflammation MediatorsProgesteronePropranololReceptors, Adrenergic, beta-2Salmeterol XinafoateImmune functionLaying henOvarian inflammationOvulationPropranololSalmeterol

Identifiers

PMID34022889
PMCPMC8140518
OpenAlexW3165563639

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.