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Clinical and Experimental Medicine

Qiang Li, Chuan Lu, Weixia Li, Yuxian Huang, Liang Chen
The globulin-platelet model (GP) is a new noninvasive liver fibrosis model developed in chronic hepatitis B (CHB) patients. This study aimed to evaluate the diagnostic performance of GP model for liver fibrosis and cirrhosis in CHB patients with high HBV DNA and mildly elevated alanine transaminase (ALT) levels. We enrolled 316 CHB patients with HBV DNA ≥ 4 log 10 copies/mL and 40 IU/L < ALT ≤ 80 IU/L. The GP, aspartate transaminase-to-platelet ratio index (APRI) and fibrosis index based on four factors (FIB-4) were calculated...
September 7, 2017: Clinical and Experimental Medicine
Tomomitsu Tahara, Sayumi Tahara, Noriyuki Horiguchi, Tomohiko Kawamura, Masaaki Okubo, Hyuga Yamada, Dai Yoshida, Takafumi Ohmori, Kohei Maeda, Naruomi Komura, Hirokazu Ikuno, Yasutaka Jodai, Toshiaki Kamano, Mitsuo Nagasaka, Yoshihito Nakagawa, Tetsuya Tsukamoto, Makoto Urano, Tomoyuki Shibata, Makoto Kuroda, Naoki Ohmiya
DNA methylation of leukocyte DNA has been proposed to be a biomarker for cancer that can be used to target patients for appropriate clinical implementation. We investigated IGF2 DMR and LINE1 methylation in the leukocyte DNA and their association with clinicopathological features and prognosis of gastric cancer (GC) patients. Methylation status of IGF2 DMR and LINE1 in the leukocyte DNA was quantified using bisulfite pyrosequencing in 207 GC patients. Methylation of both IGF2 DMR and the LINE1 was significantly higher in the undifferentiated histologic type compared to the differentiated histologic type (both P = 0...
September 4, 2017: Clinical and Experimental Medicine
Niveditha Muralidharan, Reena Gulati, Durga Prasanna Misra, Vir S Negi
The aim of the study was to look for any association of MTR 2756A>G and MTRR 66A>G gene polymorphisms with clinical phenotype, methotrexate (MTX) treatment response, and MTX-induced adverse events in South Indian Tamil patients with rheumatoid arthritis (RA). A total of 335 patients with RA were investigated. MTR 2756A>G gene polymorphism was analyzed by PCR-RFLP, and MTRR 66A>G SNP was analyzed by TaqMan 5' nuclease assay. The allele frequencies were compared with HapMap groups. MTR 2756G allele was found to be associated with risk of developing RA...
August 18, 2017: Clinical and Experimental Medicine
Yunbao Pan, Guohong Liu, Fuling Zhou, Bojin Su, Yirong Li
Cancer initiation and proliferation is regulated by both epigenetic and genetic events with epigenetic modifications being increasingly identified as important targets for cancer research. DNA methylation catalyzed by DNA methyltransferases (DNMTs) is one of the essential epigenetic mechanisms that control cell proliferation, apoptosis, differentiation, cell cycle, and transformation in eukaryotes. Recent progress in epigenetics revealed a deeper understanding of the mechanisms of tumorigenesis and provided biomarkers for early detection, diagnosis, and prognosis in cancer patients...
July 27, 2017: Clinical and Experimental Medicine
Chen-Yang Qiao, Feng Li, Yue Teng, Jing Zhao, Na Hu, Yu-Chen Fan, Kai Wang
It has been demonstrated that glutathione-S-transferase P1 (GSTP1) could protect cells from DNA damage mediated by oxidizing agents or electrophiles in hepatic inflammatory response. Our study evaluated the methylation status and the predictive value for prognosis of GSTP1 promoter region in patients with acute-on-chronic hepatitis B pre-liver failure (pre-ACHBLF). Methylation status of GSTP1 promoter in peripheral blood mononuclear cells (PBMCs) and plasma was measured in 103 patients with pre-ACHBLF, 80 patients with chronic hepatitis B (CHB) and 30 healthy controls (HCs) by methylation-specific polymerase chain reaction...
July 4, 2017: Clinical and Experimental Medicine
Yi-Nan Ma, Hai-Yan Zhang, Liang-Ru Fei, Mei-Yu Zhang, Cong-Cong Wang, Yuan Luo, Yu-Chen Han
Special AT-rich sequence-binding protein 2 (SATB2) is a transcription factor, which plays an important role in transcriptional regulation and chromatin recombinant by combining with matrix attachment regions. More evidence shows that SATB2 is involved in progression of breast cancer, head and neck squamous cell carcinomas and osteosarcoma. However, the role of SATB2 in cancer initiation and progression is still not well understood. Our study identified that decreased expression of SATB2 was correlated with tumor progression and poor prognosis in non-small cell lung cancer (NSCLC) patients...
June 30, 2017: Clinical and Experimental Medicine
Shuai Lin, Meng Wang, Xinghan Liu, Wenge Zhu, Yan Guo, Zhiming Dai, Pengtao Yang, Tian Tian, Cong Dai, Yi Zheng, Chunyan Hu, Linyan Wei, Zhijun Dai
Macrophage migration inhibitory factor (MIF) has been reported to associate with increased cancer risk in several cancers. However, the role of MIF in breast cancer (BC) susceptibility remains unknown. For the first time, we conducted a case-control study to assess the potential association of three common MIF gene variants (rs755622, rs1803976, rs11548059) with BC susceptibility in Chinese women. Total 560 breast cancer patients and 583 age- and sex-matched healthy individuals were recruited from Northwest China, and the DNA was genotyped by Sequenom MassARRAY...
August 2017: Clinical and Experimental Medicine
Concetta Panebianco, Jude A Oben, Manlio Vinciguerra, Valerio Pazienza
Hepatic stellate cells (HSCs), also known as perisinusoidal cells, are pericytes found in the perisinusoidal space of the liver. HSCs are the major cell type involved in liver fibrosis, which is the formation of scar tissue in response to liver damage. When the liver is damaged, stellate cells can shift into an activated state, characterized by proliferation, contractility and chemotaxis. The activated HSCs secrete collagen scar tissue, which can lead to cirrhosis. Recent studies have shown that in vivo activation of HSCs by fibrogenic agents can eventually lead to senescence of these cells, which would contribute to reversal of fibrosis although it may also favor the insurgence of liver cancer...
August 2017: Clinical and Experimental Medicine
Fernanda Buongusto, Claudio Bernardazzi, Agnes N Yoshimoto, Hayandra F Nanini, Raquel L Coutinho, Antonio Jose V Carneiro, Morgana T Castelo-Branco, Heitor S de Souza
Hedgehog (Hh) signaling is essential for intestinal homeostasis and has been associated with inflammation and tissue repair. We hypothesized that Hh signaling could affect the inflammatory process in inflammatory bowel disease (IBD). For this purpose, colon specimens from the inflamed and non-inflamed mucosa of 15 patients with Crohn's disease (CD), 15 with ulcerative colitis, and 15 controls were analyzed by immunohistochemistry and real-time PCR. The production and modulation of cytokines were measured by ELISA from culture explants...
August 2017: Clinical and Experimental Medicine
Gabriele Valentini, Antonella Riccardi, Serena Vettori, Rosaria Irace, Michele Iudici, Salvatore Tolone, Ludovico Docimo, Marialuisa Bocchino, Alessandro Sanduzzi, Domenico Cozzolino
The aim of the study was to evaluate CXCL4 levels in undifferentiated connective tissue disease at risk for SSc (UCTD-SSc-risk) and confirm its increase and investigate its prognostic value. Serum CXCL4 levels were measured in 45 patients and 24 controls. CXCL4 was significantly higher in UCTD-SSc-risk patients than in controls. It resulted higher in patients with a shorter disease duration and in those lacking capillaroscopic alterations. We confirm that CXCL4 levels are increased in UCTD-risk-SSc patients...
August 2017: Clinical and Experimental Medicine
Guglielmo Rd Villani, Giovanna Gallo, Emanuela Scolamiero, Francesco Salvatore, Margherita Ruoppolo
Organic acidurias are inherited metabolic diseases due to the deficiency of an enzyme or a transport protein involved in one of the several cellular metabolic pathways devoted to the catabolism of amino acids, carbohydrates or lipids. These deficiencies result in abnormal accumulation of organic acids in the body and their abnormal excretion in urine. More than 65 organic acidurias have been described; the incidence varies, individually, from 1 out of 10,000 to >1 out of 1000,000 live births. Collectively, their incidence approximates 1 out of 3000 live births...
August 2017: Clinical and Experimental Medicine
Alexandra Papoudou-Bai, Eleftheria Hatzimichael, Alexandra Barbouti, Panagiotis Kanavaros
The activator protein-1 (AP-1) is a dimeric transcription factor composed of proteins belonging to the Jun (c-Jun, JunB and JunD), Fos (c-Fos, FosB, Fra1 and Fra2) and activating transcription factor protein families. AP-1 is involved in various cellular events including differentiation, proliferation, survival and apoptosis. Deregulated expression of AP-1 transcription factors is implicated in the pathogenesis of various lymphomas such as classical Hodgkin lymphomas, anaplastic large cell lymphomas, diffuse large B cell lymphomas and adult T cell leukemia/lymphoma...
August 2017: Clinical and Experimental Medicine
Michelangelo Vestita, Lucia Lospalluti, Giuseppe Giudice, Domenico Bonamonte, Ignazio Rossiello, Angela Filoni
No abstract text is available yet for this article.
August 2017: Clinical and Experimental Medicine
Tamilselvi Elango, Anand Thirupathi, Swapna Subramanian, Purushoth Ethiraj, Haripriya Dayalan, Pushpa Gnanaraj
Psoriasis is a chronic inflammatory skin disease characterized by hyper proliferation of keratinocytes. Recent data show that the epidermis thickening in psoriasis may be related to imbalance of homeostasis caused by abnormal apoptotic process. Maintenance of keratinocyte apoptotic process is very important in psoriasis. Methotrexate (MTX) has been used for many years to restore the normal skin in psoriasis condition. However, the exact mechanism of MTX in psoriasis condition is poorly understood. The aim of this study was to examine the role of MTX on keratinocyte apoptosis pathway in psoriasis patients...
August 2017: Clinical and Experimental Medicine
Vasiliki Galani, Michalis Kastamoulas, Anna Varouktsi, Evangeli Lampri, Antigoni Mitselou, Dimitrios L Arvanitis
IFNs have found important applications in clinical medicine, including the treatment of lung malignancies. The biological effect of the IFN-receptor signaling is regulated essentially by three factors: the expression profile of the IFN itself, the profile of the receptor, and the expression of target genes. IFNs initiate their signaling by binding to specific receptors. The activated IFNs can directly induce gene transcription and/or multiple downstream signaling that both induce diverse cellular responses including the cell cycle arrest and the apoptosis in tumor cells...
August 2017: Clinical and Experimental Medicine
Simone Negrini, Fabrizio Pappalardo, Giuseppe Murdaca, Francesco Indiveri, Francesco Puppo
Antiphospholipid antibody syndrome (APS) is an autoimmune acquired thrombophilia characterized by recurrent thrombosis and pregnancy morbidity in the presence of antiphospholipid antibodies (aPL). APS can be primary, if it occurs in the absence of any underlying disease, or secondary, if it is associated with another autoimmune disorder, most commonly systemic lupus erythematosus. The exact pathogenetic mechanism of APS is unknown, but different, not mutually exclusive, models have been proposed to explain how anti-PL autoantibodies might lead to thrombosis and pregnancy morbidity...
August 2017: Clinical and Experimental Medicine
Dandan Wang, Lingying Niu, Xuebing Feng, Xinran Yuan, Shengnan Zhao, Huayong Zhang, Jun Liang, Cheng Zhao, Hong Wang, Bingzhu Hua, Lingyun Sun
The aim of this study is to assess the long-term safety of allogeneic umbilical cord mesenchymal stem cells (UC MSCs) transplantation for patients with refractory systemic lupus erythematosus (SLE). Nine SLE patients, who were refractory to steroid and immunosuppressive drugs treatment and underwent MSCs transplantation in 2009, were enrolled. One million allogeneic UC MSCs per kilogram of body weight were infused intravenously at days 0 and 7. The possible adverse events, including immediately after MSCs infusions, as well as the long-term safety profiles were observed...
August 2017: Clinical and Experimental Medicine
Margherita Sisto, Loredana Lorusso, Sabrina Lisi
Toll-like receptors (TLRs) are pattern recognition receptors linking innate and adaptive immune responses, which resulted overexpressed in primary Sjögren's syndrome (pSS). Interleukin-15 (IL-15) is a pro-inflammatory cytokine which was recently demonstrated to be involved in pSS pathogenesis. The study was undertaken to clarify whether TLR2 is involved in the production of IL-15 in human salivary gland epithelial cells (SGEC) from pSS patients. SGEC primary cell cultures were established from pSS minor salivary gland tissues explanted from patients with a sure diagnosis of SS...
August 2017: Clinical and Experimental Medicine
Nataliya Babyshkina, Sergey Vtorushin, Marina Zavyalova, Stanislav Patalyak, Tatyana Dronova, Nikolay Litviakov, Elena Slonimskaya, Julia Kzhyshkowska, Nadejda Cherdyntseva, Evgeny Choynzonov
Identification of additional biomarkers associated with ER genomic and nongenomic pathways could be very useful to distinguish patients who will benefit from tamoxifen treatment. The aim of this study was to analyze the prognostic significance of the distribution pattern of ERα expression, ESR1 gene single-nucleotide polymorphisms and expression levels of growth factor receptors in Russian hormone receptor-positive breast cancer patients treated with adjuvant tamoxifen. Formalin-fixed paraffin-embedded tumor tissue samples from 97 patients were examined for the distribution pattern of ERα expression, as well as for EGFR and TGF-βR1 expression by immunohistochemistry...
August 2017: Clinical and Experimental Medicine
Daxian Wu, Xiaoyu Fu, Ya Wen, Bingjie Liu, Zhongping Deng, Lizhong Dai, Deming Tan
Current hepatitis C virus (HCV) genotyping techniques are often highly technical, costly, or need improvements in sensitivity and specificity. These limitations indicate the need of novel methods for HCV genotyping. The present study aimed to develop a novel genotyping method combining high-resolution melting (HRM) analysis with Bayes discriminant analysis (BDA). Target gene fragment including 5'-untranslated and core region was selected. Four or five inner amplicons for every serum were amplified using nested PCR, HRM was used to determine the melting temperature of the amplicons, and HCV genotypes were then analyzed utilizing BDA...
August 2017: Clinical and Experimental Medicine
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