نتایج جستجو برای: hrk

تعداد نتایج: 99  

Journal: :Biological research 2007
Paz A Reyes Macarena F Vargas Katherine P García Paulina S Rubilar Patricia A Navarrete Pamela M Fuentes Miguel A Ríos Pedro A Orihuela Renato H Vargas Víctor H Rubio John Heckels Myron Christodoulides Hugo Cárdenas Luis A Velasquez

BACKGROUND Infection of the Fallopian tubes (FT) by Neisseria gonorrhoeae (Ngo) can lead to acute salpingitis, an inflammatory condition resulting in damage primarily to the ciliated cells, with loss of ciliary activity and sloughing of the cells from the epithelium. Recently, we have shown that Ngo infection induced apoptosis in FT epithelium cells by a TNF-alpha dependent mechanism that could...

2012
Daniel Tvrdík Helena Skálová Pavel Dundr Ctibor Povýšil Zuzana Velenská Adéla Berková Libor Staněk Luboš Petruželka

BACKGROUND Neoadjuvant chemotherapy is used in the treatment of breast carcinoma because it substantially reduces the size of the primary tumor and lymph node metastases. The present study investigated biomarkers that can predict a pathologic response to the therapy. MATERIAL/METHODS The role of apoptosis in regression of the tumors after neoadjuvant chemotherapy was determined by TUNEL and a...

Journal: :RNA 2007
Junichi Sugahara Nozomu Yachie Kazuharu Arakawa Masaru Tomita

In archaeal species, several transfer RNA genes have been reported to contain endogenous introns. Although most of the introns are located at anticodon loop regions between nucleotide positions 37 and 38, a number of introns at noncanonical sites and six cases of tRNA genes containing two introns have also been documented. However, these tRNA genes are often missed by tRNAscan-SE, the software ...

2011
Laura J. Broederdorf Daniel E. Voth

dria to provide a stable intracellular niche for replication (Luhrmann and Roy, 2007). The pathogen also activates Akt and Erk1/2 signaling to promote survival (Voth and Heinzen, 2009). Each of these events relies on Coxiella protein synthesis, suggesting the organism secretes a distinct effector(s) to regulate apoptosis. Unfortunately, effector identification and characterization has been hamp...

2011
Miguel Reina Ortiz Fernanda Schreiber Susana Benitez Nely Broncano Martha E. Chico Maritza Vaca Neal Alexander David J. Lewis Gordon Dougan Philip J. Cooper

BACKGROUND Chronic soil-transmitted helminth (STH) infections are associated with effects on systemic immune responses that could be caused by alterations in immune homeostasis. To investigate this, we measured the impact in children of STH infections on cytokine responses and gene expression in unstimulated blood. METHODOLOGY/PRINCIPAL FINDINGS Sixty children were classified as having chroni...

2012
Lyndsey E. Shorey Amanda M. Hagman David E. Williams Emily Ho Roderick H. Dashwood Abby D. Benninghoff

Certain bioactive food components, including indole-3-carbinol (I3C) and 3,3'-diindolylmethane (DIM) from cruciferous vegetables, have been shown to target cellular pathways regulating carcinogenesis. Previously, our laboratory showed that dietary I3C is an effective transplacental chemopreventive agent in a dibenzo[def,p]chrysene (DBC)-dependent model of murine T-cell lymphoblastic lymphoma. T...

2012
Sara Galimberti Francesca Guerrini Flavia Salvi Iacopo Petrini Daniela Gioia Emanuela Messa Giuseppe A Palumbo Daniela Cilloni Mario Petrini Alessandro Levis

BACKGROUND Arsenic Trioxide (ATO) is effective in about 20% of patients with myelodysplasia (MDS); its mechanisms of action have already been evaluated in vitro, but the in vivo activity is still not fully understood. Since ATO induces apoptosis in in vitro models, we compared the expression of 93 apoptotic genes in patients' bone marrow before and after ATO treatment. For this analysis, we sel...

2012
Daniel A. Cunha Mariana Igoillo-Esteve Esteban N. Gurzov Carla M. Germano Najib Naamane Ihsane Marhfour Makiko Fukaya Jean-Marie Vanderwinden Conny Gysemans Chantal Mathieu Lorella Marselli Piero Marchetti Heather P. Harding David Ron Décio L. Eizirik Miriam Cnop

Environmental factors such as diets rich in saturated fats contribute to dysfunction and death of pancreatic β-cells in diabetes. Endoplasmic reticulum (ER) stress is elicited in β-cells by saturated fatty acids. Here we show that palmitate-induced β-cell apoptosis is mediated by the intrinsic mitochondrial pathway. By microarray analysis, we identified a palmitate-triggered ER stress gene expr...

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