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1.
Gastroenterology and Hepatology from Bed to Bench. 2017; 10 (2): 118-124
in English | IMEMR | ID: emr-187869

ABSTRACT

Aim: The aim of this study is to present the oral Squamous Cell Cancer protein-protein interaction network interpretation in comparison to esophageal adenocarcinoma


Background: Oral squamous cell cancer [OSCC] is a common disease worldwide, with poor prognosis and limited treatment. Thus, introducing molecular markers through network analysis can be helpful


Methods: STRING database [DB] was applied for network construction through Cytoscape 3.4.0. Clue GO handled the gene annotation for the retrieved clusters. Eight proteins were indicated to be differential in the network constitution


Results: The centrality and clustering analysis indicate that TP53 plays an over-significant role in network integrity among eight most central proteins including TP53, AKT1, EGFR, MYC, JUN, CDH1, CCND1, and CTNNB1. The suggested biomarker set is very similar to the related biomarker panel of esophageal adenocarcinoma


Conclusion: The ontology analysis implies that the prominent proteins are involved in regulation of smooth muscle cell proliferation, regulation of fibroblast proliferation, and response to UV-A processes. In conclusion, these proteins and their associated biological processes may be more critical compared to other reported biomarkers for OSCC. Nevertheless, validation studies are required for confirming the pivotal role of potential candidates. Similar biomarker panel of this disease and esophagus adenocarcinoma is corresponded to the origin of the two malignancies

2.
Gastroenterology and Hepatology from Bed to Bench. 2016; 9 (4): 268-277
in English | IMEMR | ID: emr-184705

ABSTRACT

Aim: The aim of this study is to investigate the Protein-Protein Interaction Network of Celiac Disease


Background: Celiac disease [CD] is an autoimmune disease with susceptibility of individuals to gluten of wheat, rye andbarley. Understanding the molecular mechanisms and involved pathway may lead to the development of drug targetdiscovery. The protein interaction network is one of the supportive fields to discover the pathogenesis biomarkers for celiacdisease


Material and Methods: In the present study, we collected the articles that focused on the proteomic data in celiac disease.According to the gene expression investigations of these articles, 31 candidate proteins were selected for this study. Thenetworks of related differentially expressed protein were explored using Cytoscape 3.3 and the PPI analysis methods suchas MCODE and ClueGO


Results: According to the network analysis Ubiquitin C, Heat shock protein 90kDa alpha [cytosolic and Grp94]; class A, Band 1 member, Heat shock 70kDa protein, and protein 5 [glucose-regulated protein, 78kDa], T-complex, Chaperon incontaining TCP1; subunit 7 [beta] and subunit 4 [delta] and subunit 2 [beta], have been introduced as hub-bottlnecksproteins. HSP90AA1, MKKS, EZR, HSPA14, APOB and CAD have been determined as seed proteins


Conclusion: Chaperons have a bold presentation in curtail area in network therefore these key proteins beside the other hubbottlneckproteins may be a suitable candidates biomarker panel for diagnosis, prognosis and treatment processes in celiac disease

3.
Yakhteh Medical Journal. 2011; 13 (1): 5-10
in English | IMEMR | ID: emr-129890

ABSTRACT

Toxic fumes generated during the soldering process contain various contaminants released at sufficient rates to cause both short- and long-term health problems. Studies have shown that these fumes change the quality and quantity of semen fluid in exposed workers. The aim of the present study was to determine the potentially toxic effects of solder fumes on spermatogenesis in seminiferous tubules of rats as an experimental model, with conditioned media in an exposed chamber. A total number of 48 male Sprague Dawley adult rats were randomly divided into experimental [n=30] and control [n=18] groups. Based on exposure time, each group was further subdivided into two, four and six subgroups. Rats in the experimental groups were exposed to solder fumes in an exposure chamber for one hour/ day. The concentrations of fumes [formaldehyde, stanurn [Sn] and lead [Pb]] were measured by a standard method via atomic absorption and spectrophotometry. According to a timetable, under deep anesthesia, the rats of both experimental and control subgroups were killed. After fixation of testes, specimens were weighed and routinely processed. Paraffin sections were stained by hematoxylin and eosin. Spermiogenesis index was calculated and data analyzed by Mann Whitney NPAR test. Analysis of air samples in the exposure chamber showed the following fume concentrations: 0.193 mg/m[3] for formaldehyde, 0.35 mg/m[3] for Sn and 3 mg/m[3] for Pb. Although there was no significant difference in testes weight between control and experimental subgroups, there was only a significant difference in spermiogenesis index between the six week experimental and control subgroups [p<0.02]. The results of this study showed that solder fumes can change the spermiogenesis index in experimental groups in a time dependent manner


Subject(s)
Animals, Laboratory , Male , Welding , Seminiferous Tubules/pathology , Testis/anatomy & histology , Rats, Sprague-Dawley , Testis/cytology
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