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Amirlatifi S, Kooshari Z, Salmani K, Fallah Ziyarani M, Azizi S, Ghotbi E, Zolali B. Evaluation of long noncoding RNA (LncRNA) in pathogenesis of HELLP syndrome: diagnostic and future approach. J OBSTET GYNAECOL 2023; 43:2174836. [PMID: 36795605 DOI: 10.1080/01443615.2023.2174836] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
Abstract
HELLP syndrome is a disorder during pregnancy which is defined by elevation of liver enzymes, haemolysis, and low platelet count. This syndrome is a multifactorial one and both genetic and environmental components can have a crucial role in this syndrome's pathogenesis. Long noncoding RNAs (lncRNAs), are defined as long non-protein coding molecules (more than 200 nucleotides), which are functional units in most cellular processes such as cell cycle, differentiation, metabolism and some diseases progression. As these markers discovered, there has been some evidence that they have an important role in the function of some organs, such as placenta; therefore, alteration and dysregulation of these RNAs can develop or alleviate HELLP disorder. Although the role of lncRNAs has been shown in HELLP syndrome, the process is still unclear. In this review, our purpose is to evaluate the association between molecular mechanisms of lncRNAs and HELLP syndrome pathogenicity to elicit some novel approaches for HELLP diagnosis and treatment.
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Affiliation(s)
- Shahrzad Amirlatifi
- Clinical Research Development unit (SHACRDU), School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Zahra Kooshari
- Clinical Research Development unit (SHACRDU), School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Kiana Salmani
- Department of Genetics, Faculty of Advanced Science and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Maryam Fallah Ziyarani
- Department of Genetics, Faculty of Advanced Science and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Sepideh Azizi
- Clinical Research Development unit (SHACRDU), School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Elena Ghotbi
- Preventative Gynecology Research Center, Shahid Beheshti University of Medical Science, Tehran, Iran
| | - Bita Zolali
- Clinical Research Development unit (SHACRDU), School of Medicine, Iran University of Medical Sciences, Tehran, Iran
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Kang J, Abudurufu M, Zhang S, Jiang W, Luo H. lncRNA VIM-AS1 acts as a prognostic biomarker and promotes apoptosis in lung adenocarcinoma. J Cancer 2023; 14:1417-1426. [PMID: 37283796 PMCID: PMC10240666 DOI: 10.7150/jca.83639] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2023] [Accepted: 04/16/2023] [Indexed: 06/08/2023] Open
Abstract
Background: Long non-coding RNA VIM-antisense 1 (VIM-AS1) has been reported that it is involved in the progression of several cancers. However, the aberrant expression profile, clinical significance, and biological function of VIM-AS1in lung adenocarcinoma (LUAD) have not been fully described. We tend to perform a comprehensive analysis to identify the clinical prognostic value of VIM-AS1 for LUAD patients and explore its potential molecular mechanisms in LUAD development. Methods: The expression features of VIM-AS1 in LUAD were identified based on Cancer Genome Atlas database (TCGA) and genotypic tissue expression (GTEx). The LUAD patients' lung tissues were collected to testify above expression features. Survival analysis and COX regression analysis were performed to evaluate the prognostic value of VIM-AS1 in LUAD patients. Then Correlation analysis was performed to filter VIM-AS1 co-expression genes, and their molecular functions were constructed. Furtherly, we constructed the lung carcinoma A549 cell line with VIM-AS1 overexpression to test its effect on cell function. Results: VIM-AS1 expression levels were significantly downregulated in LUAD tissues. VIM-AS1 with low expression is significantly associated with short overall survival (OS), disease-specific survival (DSS), progress free interval (PFI), late T pathological stage, and lymph node metastasis for LUAD patients. The low expression level of VIM-AS1 was an independent risk factor for poor prognosis for LUAD patients. The biological functions of co-expressed genes indicated that VIM-AS1 regulating the apoptosis process may be the potential mechanism for LUAD. Specifically, we testified VIM-AS1 can promote apoptosis in A549 cells. Conclusion: VIM-AS1 was significantly downregulated in LUAD tissues, and it can be a promising prognostic index for LUAD development. VIM-AS1 regulating apoptotic effects may play important roles in LUAD progression.
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Affiliation(s)
- Jianhong Kang
- Department of Thoracic Surgery, The first Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Maimaiti Abudurufu
- Department of Thoracic Surgery, The first Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Shuwei Zhang
- Department of Thoracic Surgery, Sichuan Academy of Medical Sciences and Sichuan Provincial People's Hospital, Chengdu, Sichuan, China
| | - Wei Jiang
- Anesthesia Surgery Center, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, Chengdu, Sichuan, China
| | - Honghe Luo
- Department of Thoracic Surgery, The first Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, China
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Franco PIR, Neto JRDC, de Menezes LB, Machado JR, Miguel MP. Revisiting the hallmarks of cancer: A new look at long noncoding RNAs in breast cancer. Pathol Res Pract 2023; 243:154381. [PMID: 36857948 DOI: 10.1016/j.prp.2023.154381] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Accepted: 02/16/2023] [Indexed: 02/19/2023]
Abstract
Breast cancer is one of the leading causes of death in women worldwide. The increasing understanding of the molecular mechanisms underlying its heterogeneity favors a better understanding of tumor biology and consequently the development of better diagnostic and treatment techniques. The advent of tumor genome sequencing techniques has highlighted more participants in the process, in addition to protein-coding genes. Thus, it is now known that long noncoding RNAs, previously described as transcriptional noise with no biological function, are intimately associated with tumor development. In breast cancer, they are abnormally expressed and closely associated with tumor progression, which makes them attractive diagnostic biomarkers and prognostic and specific therapeutic targets. Therefore, a thorough understanding of the regulatory mechanisms of long noncoding RNAs in breast cancer is essential for the search for new treatment strategies. In this review, we summarize the major long noncoding RNAs and their association with the cancer characteristics of the ability to sustain proliferative signaling, evasion of growth suppressors, replicative immortality, activation of invasion and metastasis, induction of angiogenesis, resistance to cell death, reprogramming of energy metabolism, genomic instability and sustained mutations, promotion of tumor inflammation, and evasion of the immune system. In addition, we report and suggest how they can be used as prognostic biomarkers and possible therapeutic targets.
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Affiliation(s)
- Pablo Igor Ribeiro Franco
- Instituto de Patologia Tropical e Saúde Pública, Programa de Pós-Graduação em Medicina Tropical e Saúde Pública, Universidade Federal de Goiás, Goiânia, GO, Brazil.
| | - José Rodrigues do Carmo Neto
- Instituto de Patologia Tropical e Saúde Pública, Programa de Pós-Graduação em Medicina Tropical e Saúde Pública, Universidade Federal de Goiás, Goiânia, GO, Brazil
| | - Liliana Borges de Menezes
- Setor de Patologia Geral, Instituto de Patologia Tropical e Saúde Pública, Universidade Federal de Goiás, Goiânia, GO, Brazil; Escola de Veterinária e Zootecnia, Programa de Pós-Graduação em Ciência Animal, Universidade Federal de Goiás, Goiânia, GO, Brazil
| | - Juliana Reis Machado
- Instituto de Patologia Tropical e Saúde Pública, Programa de Pós-Graduação em Medicina Tropical e Saúde Pública, Universidade Federal de Goiás, Goiânia, GO, Brazil; Departamento de Patologia, Genética e Evolução, Instituto de Ciências Biológicas e Naturais, Universidade Federal do Triângulo Mineiro, Uberaba, MG, Brazil
| | - Marina Pacheco Miguel
- Setor de Patologia Geral, Instituto de Patologia Tropical e Saúde Pública, Universidade Federal de Goiás, Goiânia, GO, Brazil; Escola de Veterinária e Zootecnia, Programa de Pós-Graduação em Ciência Animal, Universidade Federal de Goiás, Goiânia, GO, Brazil
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Melatonin Alleviates Oxidative Stress Induced by H2O2 in Porcine Trophectodern Cells. Antioxidants (Basel) 2022; 11:antiox11061047. [PMID: 35739944 PMCID: PMC9219737 DOI: 10.3390/antiox11061047] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Revised: 05/13/2022] [Accepted: 05/18/2022] [Indexed: 01/17/2023] Open
Abstract
Placental oxidative stress has been implicated as a main risk factor for placental dysfunction. Alleviation of oxidative stress and enhancement of antioxidant capacity of porcine trophectoderm (PTr2) cells are effective means to maintaining normal placental function. The present study was conducted to evaluate the protective effect of melatonin (MT) on H2O2-induced oxidative damage in PTr2 cells. Our data revealed that pretreatment with MT could significantly improve the decrease in cell viability induced by H2O2, and reduce intracellular reactive oxygen species (ROS) levels and the ratio of apoptotic cells. Here, we compared the transcriptomes of untreated versus melatonin-treated PTr2 cells by RNA-seq analysis and found that differentially expressed genes (DEGs) were highly enriched in the Wnt signaling, TGF-beta signaling and mTOR signaling pathways. Moreover, pretreatment with MT upregulated the antioxidant-related genes such as early growth response3 (EGR3), WAP four-disulfide core domain1 (WFDC1), heme oxygenase1 (HMOX1) and vimentin (VIM). These findings reveal that melatonin protects PTr2 cells from H2O2-induced oxidative stress damage.
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BOZGEYİK E, EGE B, KOPARAL M, CEYLAN O. Clinical significance of Vimentin antisense RNA 1 and its correlation with other epithelial to mesenchymal transition markers in oral cancers. Pathol Res Pract 2022; 232:153807. [DOI: 10.1016/j.prp.2022.153807] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Revised: 01/27/2022] [Accepted: 02/09/2022] [Indexed: 11/15/2022]
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Wang Y, Zhang Z. Increased expression of lncRNA SNHG7 promotes the cell viability, migration, and invasion in pre-eclampsia via modulating the miR-214-5p/TWIST1 axis. Hypertens Pregnancy 2021; 40:261-270. [PMID: 34606403 DOI: 10.1080/10641955.2021.1981372] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
PURPOSE This study is aimed to elucidate the molecular mechanism of lncRNA SNHG7 on pre-eclampsia (PE). METHODS The expression of SNHG7, miR-214-5p and TWIST1 in PE placental tissues was detected by qRT-PCR. The regulatory mechanism of SNHG7/miR-214-5p/TWIST1 axis on PE was determined using MTT, wound healing, transwell invasion, and western blot assays. RESULTS In PE pregnancies, SNHG7 and TWIST1 were decreased, while miR-214-5p was increased.The elevated miR-214-5p and decreased TWIST1 partly eliminated the promoting effects of SNHG7 up-regulation on the viability and metastasis of JEG-3 cells. CONCLUSIONS Up-regulated SNHG7 protects against PE through modulating the miR-214-5p/TWIST1 axi.
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Affiliation(s)
- Yongping Wang
- Department of Maternity Ward 2nd, Haidian Maternal and Child Health Hospital in Beijing,Beijing, China
| | - Zhihui Zhang
- Department of Maternity Ward 2nd, Haidian Maternal and Child Health Hospital in Beijing,Beijing, China
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Abstract
Preeclampsia (PE) is an idiopathic disease that occurs during pregnancy. It comprises multiple organ and system damage, and can seriously threaten the safety of the mother and infant throughout the perinatal period. As the pathogenesis of PE is unclear, there are few specific remedies. Currently, the only way to eliminate the clinical symptoms is to terminate the pregnancy. Although noncoding RNA (ncRNA) was once thought to be the "junk" of gene transcription, it is now known to be widely involved in pathological and physiological processes, including pregnancy-related disorders. Moreover, there is growing evidence that the unbalanced expression of specific ncRNA is involved in the pathogenesis of PE. In the present review, we summarize the expression patterns of ncRNAs, i.e., microRNAs (miRNAs), long noncoding RNAs (lncRNAs), and circular RNAs (circRNAs), and the functional mechanisms by which they affect the development of PE, and examine the clinical significance of ncRNAs as biomarkers for the diagnosis of PE. We also discuss the contributions made by genetic polymorphisms and epigenetic ncRNA regulation to PE. In the present review, we wish to explore and reinforce the clinical value of ncRNAs as noninvasive biomarkers of PE.
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Affiliation(s)
- Ningxia Sun
- Department of Medical Genetic, The Affiliated Hospital of Qingdao University, 16 Jiangsu Road, Qingdao, 266003, China
- Department of Gynecology and obstetrics, The Affiliated Hospital of Qingdao University, Qingdao, 266003, China
| | - Shiting Qin
- Department of Medical Genetic, The Affiliated Hospital of Qingdao University, 16 Jiangsu Road, Qingdao, 266003, China
- Department of Cardiology, The Affiliated Hospital of Qingdao University, Qingdao, 266003, China
| | - Lu Zhang
- Department of Medical Genetic, The Affiliated Hospital of Qingdao University, 16 Jiangsu Road, Qingdao, 266003, China.
- Prenatal Diagnosis Center, The Affiliated Hospital of Qingdao University, Qingdao, 266003, China.
| | - Shiguo Liu
- Department of Medical Genetic, The Affiliated Hospital of Qingdao University, 16 Jiangsu Road, Qingdao, 266003, China.
- Prenatal Diagnosis Center, The Affiliated Hospital of Qingdao University, Qingdao, 266003, China.
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Yu Z, Zhang Y, Zheng H, Gao Q, Wang H. LncRNA SNHG16 regulates trophoblast functions by the miR-218-5p/LASP1 axis. J Mol Histol 2021; 52:1021-1033. [PMID: 34110517 DOI: 10.1007/s10735-021-09985-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Accepted: 05/24/2021] [Indexed: 12/22/2022]
Abstract
Altered placental development and function lead to placental diseases such as preeclampsia (PE) which is mainly characterized by insufficient trophoblast invasion and abnormally invasive placenta disorders. Long noncoding RNAs (lncRNAs) are widely reported to function as crucial players in the pathogenesis of PE. The present investigation clarified the role of lncRNA small nucleolar RNA host gene 16 (SNHG16) in PE. RT-qPCR was used to measure gene expression. The proliferation of trophoblast cells was examined using CCK-8 and EdU assays. Trophoblast migration and invasion were assessed using wound healing and transwell assays. The apoptosis was estimated by flow cytometry. Luciferase reporter and RNA pull-down assays were performed to explore the molecular mechanisms in trophoblast cells. We found that SNHG16 was downregulated in placenta from patients with PE. Moreover, SNHG16 depletion significantly inhibited trophoblast cell proliferation, migration, and invasion and stimulated apoptosis, while SNHG16 overexpression exerted an opposite effect. Subsequently, we confirmed that SNHG16 acted as a competing RNA (ceRNA) of miR-218-5p that was verified to directly target LASP1. Both miR-218-5p depletion and LASP1 upregulation antagonized the effect of SNHG16 knockdown on HTR-8/SVneo cell functions. In conclusion, SNHG16 facilitates trophoblast cell migration and invasion by the miR-218-5p/LASP1 axis.
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Affiliation(s)
- Zhou Yu
- Department of Obstetrics, The Affiliated Huaian No. 1 People's Hospital of Nanjing Medical University, No. 1 Huanghe West Road, Huaiyin District, Huaian , 223300, Jiangsu, China
| | - Yulei Zhang
- Department of Obstetrics, The Affiliated Huaian No. 1 People's Hospital of Nanjing Medical University, No. 1 Huanghe West Road, Huaiyin District, Huaian , 223300, Jiangsu, China
| | - Haoyu Zheng
- Department of Obstetrics, The Affiliated Huaian No. 1 People's Hospital of Nanjing Medical University, No. 1 Huanghe West Road, Huaiyin District, Huaian , 223300, Jiangsu, China
| | - Qiong Gao
- Department of Obstetrics, The Affiliated Huaian No. 1 People's Hospital of Nanjing Medical University, No. 1 Huanghe West Road, Huaiyin District, Huaian , 223300, Jiangsu, China
| | - Haidong Wang
- Department of Obstetrics, The Affiliated Huaian No. 1 People's Hospital of Nanjing Medical University, No. 1 Huanghe West Road, Huaiyin District, Huaian , 223300, Jiangsu, China.
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Janjusevic M, Fluca AL, Ferro F, Gagno G, D’Alessandra Y, Beltrami AP, Sinagra G, Aleksova A. Traditional and Emerging Biomarkers in Asymptomatic Left Ventricular Dysfunction-Promising Non-Coding RNAs and Exosomes as Biomarkers in Early Phases of Cardiac Damage. Int J Mol Sci 2021; 22:ijms22094937. [PMID: 34066533 PMCID: PMC8125492 DOI: 10.3390/ijms22094937] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Revised: 04/29/2021] [Accepted: 05/04/2021] [Indexed: 12/12/2022] Open
Abstract
Heart failure (HF) is one of the major causes of morbidity and mortality worldwide and represents an escalating problem for healthcare systems. The identification of asymptomatic patients with underlying cardiac subclinical disease would create an opportunity for early intervention and prevention of symptomatic HF. Traditional biomarkers are very useful as diagnostic and prognostic tools in the cardiovascular field; however, their application is usually limited to overt cardiac disease. On the other hand, a growing number of studies is investigating the diagnostic and prognostic potential of new biomarkers, such as micro-RNAs (miRNA), long non-coding RNAs, and exosome cargo, because of their involvement in the early phases of cardiac dysfunction. Unfortunately, their use in asymptomatic phases remains a distant goal. The aim of this review is to gather the current knowledge of old and novel biomarkers in the early diagnosis of cardiac dysfunction in asymptomatic individuals.
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Affiliation(s)
- Milijana Janjusevic
- Cardiothoracovascular Department, Azienda Sanitaria Universitaria Giuliano Isontina (ASUGI) and Department of Medical Surgical and Health Science, University of Trieste, 34149 Trieste, Italy; (M.J.); (A.L.F.); (F.F.); (G.G.); (G.S.)
| | - Alessandra Lucia Fluca
- Cardiothoracovascular Department, Azienda Sanitaria Universitaria Giuliano Isontina (ASUGI) and Department of Medical Surgical and Health Science, University of Trieste, 34149 Trieste, Italy; (M.J.); (A.L.F.); (F.F.); (G.G.); (G.S.)
| | - Federico Ferro
- Cardiothoracovascular Department, Azienda Sanitaria Universitaria Giuliano Isontina (ASUGI) and Department of Medical Surgical and Health Science, University of Trieste, 34149 Trieste, Italy; (M.J.); (A.L.F.); (F.F.); (G.G.); (G.S.)
| | - Giulia Gagno
- Cardiothoracovascular Department, Azienda Sanitaria Universitaria Giuliano Isontina (ASUGI) and Department of Medical Surgical and Health Science, University of Trieste, 34149 Trieste, Italy; (M.J.); (A.L.F.); (F.F.); (G.G.); (G.S.)
| | - Yuri D’Alessandra
- Cardiovascular Proteomics Unit, Centro Cardiologico Monzino-IRCCS, Via Parea 4, 20138 Milan, Italy;
| | | | - Gianfranco Sinagra
- Cardiothoracovascular Department, Azienda Sanitaria Universitaria Giuliano Isontina (ASUGI) and Department of Medical Surgical and Health Science, University of Trieste, 34149 Trieste, Italy; (M.J.); (A.L.F.); (F.F.); (G.G.); (G.S.)
| | - Aneta Aleksova
- Cardiothoracovascular Department, Azienda Sanitaria Universitaria Giuliano Isontina (ASUGI) and Department of Medical Surgical and Health Science, University of Trieste, 34149 Trieste, Italy; (M.J.); (A.L.F.); (F.F.); (G.G.); (G.S.)
- Correspondence: or ; Tel.: +39-3405507762; Fax: +39-040-3994878
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Sun JG, Li XB, Yin RH, Li XF. lncRNA VIM‑AS1 promotes cell proliferation, metastasis and epithelial‑mesenchymal transition by activating the Wnt/β‑catenin pathway in gastric cancer. Mol Med Rep 2020; 22:4567-4578. [PMID: 33173977 PMCID: PMC7646824 DOI: 10.3892/mmr.2020.11577] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Accepted: 07/28/2020] [Indexed: 12/14/2022] Open
Abstract
The present study aimed to explore the biological functions and molecular mechanisms of the long non-coding RNA VIM antisense RNA 1 (VIM-AS1) in gastric cancer (GC). The expression of VIM-AS1 was analyzed in tissues from patients with GC and GC cell lines by reverse transcription-quantitative (RT-q)PCR. The relationship between VIM-AS1 expression and overall survival time of patients with GC was also assessed. To determine the biological functions of VIM-AS1, Cell Counting Kit-8 assay, colony formation assay, flow cytometry, wound healing assay and Transwell assay were employed. The targeting relationship among VIM-AS1, microRNA (miR)-8052 and frizzled 1 (FZD1) was verified by the dual luciferase reporter gene assay. The underlying molecular mechanism of VIM-AS1 on GC was determined by RT-qPCR and western blotting. In addition, tumor formation was detected in nude mice. The results of the present study demonstrated that VIM-AS1 was highly expressed in GC tissues and cells. In addition, VIM-AS1 expression was demonstrated to be closely related to the prognosis of patients with GC. Notably, silencing VIM-AS1 inhibited the proliferation, migration and invasion, and enhanced apoptosis of AGS and HGC-27 cells. Silencing VIM-AS1 significantly increased the protein expression levels of cleaved caspase-3, Bax and E-cadherin, but decreased the protein expression levels of Bcl-2, N-cadherin, vimentin, matrix metalloproteinase (MMP)-2, MMP-9, β-catenin, cyclin D1, C-myc and FZD1. Additionally, silencing VIM-AS1 inhibited tumor growth in nude mice. Cumulatively, the present study demonstrated that VIM-AS1 may promote cell proliferation, migration, invasion and epithelial-mesenchymal transition by regulating FDZ1 and activating the Wnt/β-catenin pathway in GC.
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Affiliation(s)
- Jin-Gui Sun
- Department of Oncology, Shouguang People's Hospital, Shouguang, Shandong 262700, P.R. China
| | - Xiao-Bo Li
- Department of Gastroenterology, First People's Hospital of Jinan, Jinan, Shandong 250011, P.R. China
| | - Rui-Hong Yin
- Department of Gastroenterology, First People's Hospital of Jinan, Jinan, Shandong 250011, P.R. China
| | - Xiao-Feng Li
- Yulin Cancer Diagnosis and Treatment Center, The First Hospital of Yulin, Yulin, Shaanxi 719000, P.R. China
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