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Leptin receptor (Ob-R) mRNA expression and serum leptin concentration in patients with colorectal and metastatic colorectal cancer

Overview of attention for article published in Brazilian Journal of Medical and Biological Research, March 2013
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Title
Leptin receptor (Ob-R) mRNA expression and serum leptin concentration in patients with colorectal and metastatic colorectal cancer
Published in
Brazilian Journal of Medical and Biological Research, March 2013
DOI 10.1590/1414-431x20122559
Pubmed ID
Authors

N. Erkasap, M. Ozkurt, S. Erkasap, F. Yasar, K. Uzuner, E. Ihtiyar, S. Uslu, M. Kara, O. Bolluk

Abstract

The objective of the present study was to investigate the effect of leptin on the progression of colorectal carcinoma to metastatic disease by analyzing the serum leptin concentration and Ob-R gene expression in colon cancer tissues. Tissue samples were obtained from 31 patients who underwent surgical resection for colon (18 cases) and metastatic colon (13 cases) cancer. Serum leptin concentration was determined by an enzyme-linked immunosorbent assay (ELISA) and Ob-R mRNA expression by real-time polymerase chain reaction (RT-PCR) for both groups. ELISA data were analyzed by the Student t-test and RT-PCR data were analyzed by the Mann-Whitney U-test. RT-PCR results demonstrated that mRNA expression of Ob-R in human metastatic colorectal cancer was higher than in local colorectal cancer tissues. On the other hand, mean serum leptin concentration was significantly higher in local colorectal cancer patients compared to patients with metastatic colorectal cancer. The results of the present study suggest a role for leptin in the progression of colon cancer to metastatic disease without weight loss. In other words, significantly increased Ob-R mRNA expression and decreased serum leptin concentration in patients with metastatic colon cancer indicate that sensitization to leptin activity may be a major indicator of metastasis to the colon tissue and the determination of leptin concentration and leptin gene expression may be used to aid the diagnosis.

Mendeley readers

Mendeley readers

The data shown below were compiled from readership statistics for 25 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Brazil 1 4%
Unknown 24 96%

Demographic breakdown

Readers by professional status Count As %
Student > Bachelor 5 20%
Student > Doctoral Student 4 16%
Researcher 4 16%
Student > Postgraduate 3 12%
Student > Ph. D. Student 2 8%
Other 2 8%
Unknown 5 20%
Readers by discipline Count As %
Medicine and Dentistry 9 36%
Agricultural and Biological Sciences 3 12%
Design 2 8%
Biochemistry, Genetics and Molecular Biology 2 8%
Arts and Humanities 1 4%
Other 2 8%
Unknown 6 24%
Attention Score in Context

Attention Score in Context

This research output has an Altmetric Attention Score of 1. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 07 April 2013.
All research outputs
#22,758,309
of 25,373,627 outputs
Outputs from Brazilian Journal of Medical and Biological Research
#1,018
of 1,254 outputs
Outputs of similar age
#184,888
of 210,225 outputs
Outputs of similar age from Brazilian Journal of Medical and Biological Research
#4
of 9 outputs
Altmetric has tracked 25,373,627 research outputs across all sources so far. This one is in the 1st percentile – i.e., 1% of other outputs scored the same or lower than it.
So far Altmetric has tracked 1,254 research outputs from this source. They receive a mean Attention Score of 4.9. This one is in the 1st percentile – i.e., 1% of its peers scored the same or lower than it.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 210,225 tracked outputs that were published within six weeks on either side of this one in any source. This one is in the 1st percentile – i.e., 1% of its contemporaries scored the same or lower than it.
We're also able to compare this research output to 9 others from the same source and published within six weeks on either side of this one. This one has scored higher than 5 of them.