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722 articles for “Th Cells”
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Research ArticleOpen accessIn the abstractAnalysis of the Differential Gene Expression, by the DD-RTPCR Technique, Of Workers Atta sexdens rubropilosa Mandibular Glands (Hymenoptera: Formicidae)Lorena Favaro Pavon, Maria Izabel Camargo Mathias, Flávio Meirelles, Maurício Bacci JúniorThe DD-RTPCR technique is becoming more efficient nowadays to isolate and characterize genes differentially expressed among cells, tissues or individuals, being used here, for the first time in the study of mandibular glands of minina and media workers and soldiers of the ant species Atta sexdens rubropilosa. The expression profile of bands (transcripts), obtained in the present study, permitted the … …American Journal of Agricultural and Biological Sciences, Vol. 1, Issue 2 · 30 Jun 2006 · 7,846 accessesView PDFCite
Research ArticleOpen accessIn the abstractStudy of the Mandibular Glands of Ant Workers Atta sexdens rubropilosa (Forel, 1908) (Hymenoptera: Formicidae) Focusing the Ultrastructural CytochemistryLorena Favaro Pavon, Maria Izabel Camargo MathiasThe mandibular glands of hymenopterans in general are paired structures located on each side of the head. These glands possess an excretory duct located at the internal surface of the mandible articulation, through which these glands release the secretion they produce. The mandibular glands of the minima, media and soldier worker of the ant Atta sexdens rubropilosa were analyzed by … …American Journal of Agricultural and Biological Sciences, Vol. 1, Issue 2 · 30 Jun 2006 · 7,648 accessesView PDFCite
Research ArticleOpen accessIn the abstractPerformance Evaluation of Implementing Calls Prioritization with Different Queuing Disciplines in Mobile Wireless NetworksSalman A. AlQahtani, Nasser-Eddine RikliIt is known that efficient call handling mechanisms can greatly improve cellular network performance. One way to improve system performance of cellular network is to use efficient handover schemes when users changes between cells. This paper focuses on the performance evaluation of originating and handover calls prioritization using different queue size and discipline. Both calls will be queued until they … …Journal of Computer Science, Vol. 2, Issue 5 · 31 May 2006 · 6,472 accessesView PDFCite
Research ArticleOpen accessIn the abstractIn vitro Activation of Human and Rat Lymphocyte and Macrophage Functions by NorepinephrineRicardo Gomez-Flores, Diana Caballero-Hernandez, Richard J. Weber et al.Norepinephrine (NE) has been associated not only with increasing blood pressure, atherosclerosis, heart disease, and other life threatening conditions, but also with altering immune responses by influencing leukocyte functions. In the present study, we evaluated the in vitro effects of NE on rat thymic lymphocyte and human peripheral blood mononuclear cells (HPBMC) functions. We observed that NE marginally, but significantly … …American Journal of Immunology, Vol. 1, Issue 4 · 31 Dec 2005 · 7,078 accessesView PDFCite
Research ArticleOpen accessIn the abstractImmunomodulatory Treatment of Infertility in Men with Elevated Antisperm AntibodiesIvan Bubanovic, Slobodan Kojic, Stevo Najman, Zlatibor AndjelkovicPossible causes of subfertility or infertility in men are still poorly defined, but one important category may be elevated level of antisperm antibodies (ASA) caused by infective and/or autoimmune diseases, as well as injuries of male reproductive system. In this study, blood sera from 45 infertile men of different age with ASA positive ELISA test were examined for the serum … …American Journal of Immunology, Vol. 1, Issue 4 · 31 Dec 2005 · 8,842 accessesView PDFCite
Research ArticleOpen accessIn the abstractLarge Scale Production and Characterization of Anti-Human IgG Monoclonal Antibody in Peritoneum of Balb/c MICEB. Baradaran, J. Majidi, Z. M. Hassan, J. AbdolalizadehMonoclonal antibodies are key reagents that are used in biomedical researches, diagnosis of immunodeficiency diseases such as IgG subclasses deficiency and treatment of diseases like infections and cancers. For large scale production of monoclonal antibody, hybridoma cells that produce monoclonal antibody against human IgG were injected into the peritoneum of the Balb/c mice which have previously been primed with 0.5 … …American Journal of Biochemistry and Biotechnology, Vol. 1, Issue 4 · 31 Dec 2005 · 7,092 accessesView PDFCite
Research ArticleOpen accessIn the abstractSoluble Tumor Necrosis Factor Receptor Type I and Dranulysin as Immunological Markers in Congestive Heart FailureSimone de Lima e Silva Deo, Maria Do Carmo Valente De Crasto, Alda Maria Da-Cruz et al.Previous studies have shown that circulating levels of cytokines are increased in patients with congestive heart failure (CHF), resulting in myocardial depression. In this work, we have determined serum levels of TNF-α and IFN-γ by ELISA, detected sTNFR-I by dot ELISA, as well as TNFα, IL-6, IL-10 and granulysin mRNA in unstimulated peripheral blood mononuclear cells (PBMC) by RT-PCR in … …American Journal of Immunology, Vol. 1, Issue 3 · 30 Sep 2005 · 6,776 accessesView PDFCite
Research ArticleOpen accessIn the abstractRole of Plasmid in Production of Acetobacter Xylinum BiofilmsAbbas Rezaee, Sanaz Solimani, Mehdi ForozandemogadamAcetobacter xylinum has the ability to produce cellulotic biofilms. Bacterial cellulose is expected to be used in many industrial or biomedical materials for its unique characteristics. A. xylinum contains a complex system of plasmid DNA molecules. A 44 kilobases (kb) plasmid was isolated in wild type of A. xylinum. To improve the cellulose producing ability of A. xylinum, role of … …American Journal of Biochemistry and Biotechnology, Vol. 1, Issue 3 · 30 Sep 2005 · 7,501 accessesView PDFCite
Research ArticleOpen accessIn the abstractImplementation of a Novel Concatenated FEC by RS and Irregular Turbo Codes on OFDM SystemsA. Shanmugam, A. R. Abdul Rajak, S. Vishwanath, R. UpendraCode Division Multiple Access (CDMA) performs well in a multi-cellular environment where a single frequency is used in all cells. Code Division Multiple Access (CDMA) has severe problems associated with multipath and Channel news. One possible problem is that the receiver may require a very large dynamic range in order to handle the large signal strength variation among users. Due … …American Journal of Applied Sciences, Vol. 2, Issue 5 · 31 May 2005 · 7,042 accessesView PDFCite
Research ArticleOpen accessIn the abstractAndrogen Receptor in Macrophages of Male Rat is Greater Than in FemaleKazem Ahmadi, Alan B. McCrudenThe presence and possible sex differences of androgen receptor in peritoneal macrophages was investigated using immunomagnetic beads. Macrophages were incubated with different concentrations of [3H]-5αDHT in the presence or absence of a 100 fold excess of unlabelled 5α-DHT. Labelled cells were separated from unbound steroid by immunomagnetic beads coated with anti-rat macrophage antibody. The binding identified in the rat macrophages … …American Journal of Immunology, Vol. 1, Issue 1 · 31 Mar 2005 · 6,834 accessesView PDFCite