phytohemagglutinins

..Herein, we measured the expression of alpha 2, 3-linked sialic acid residues by using a specific lectin as well as the potential of invasion and metastasis of gastric cancer was analyzed...

..However, mechanisms involved in local immunological and inflammatory processes provoked by PHA are poorly known, and its use and interpretation as an acquired immune response is currently debated...

..Our data demonstrate an age-related difference in immune function in Japanese quail that has similarities to age-related immunity in humans; younger and older animals had weaker immune responses compared to young adults...

..This anatomical arrangement creates a hierarchy of information flow and provides an anatomical basis for the limbic/cognitive/motor interface via the ventral midbrain...

..We speculate that differential frequency of CD80(+) monocytes after PHA stimulation could serve as a qualitative parameter of disease status, related to the different clinical forms of chronic brucellosis...

..Simultaneously, CD3+, CD4+ and CD8+ T-lymphocytes subsets were measured...

..This study defines the kinetics for both measures of T cell activation and provides a comprehensive review with various polyclonal activators that can serve as a reference for monitoring lymphocyte function in clinical study samples...

..To investigate the clinicopathological significance of sialylation in colorectal cancer, we performed histochemical analyses using sialic acid-binding lectins...

..Because most tumors are infiltrated by lymphocytes, our studies indicate a novel approach to identify 'systemic biological responses' of T cells, which could determine the design, and optimization of effective tumor vaccines...

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..It exerted a suppressive effect on growth of the fungal species Fusarium oxysporum, Coprinus comatus, and Rhizoctonia solani. The lectin had low ribonuclease and negligible translation-inhibitory activities...

..015; CFP, p=0.05) and IL5 (PPD, p=0.05; CFP, p=0.015). Cytokine analysis in WB cultures is, therefore, able to discriminate between active tuberculosis infection and nondiseased healthy controls...

..01 at 1 mM sodium sulfite and 50 mM sorbic acid). Data demonstrate a suppressive influence of sodium sulfite and sorbic acid on the activated Th1-type immune response...

..Overall, our results underscore the importance of multilocus heterozygosity for individual pathogen resistance and immunity...

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..Furthermore, our findings suggest that the pattern of innervation of GABAergic interneurons by cortical afferents is different from the cortical innervation of spiny projection neurons...

..It will provide a more complete picture in differences between activated lymphocyte cytokine profiles from healthy individuals and those from patients with chronic inflammatory diseases...

..Our findings illustrate that full-sib comparisons of immunological measures may lead to an inflated estimate of heritability and also reveal a limited role of nestling PHA-response for sexual selection in this population...

..The magnitudes of proliferation responses were similar to that for chicken lymphocytes. These methods have subsequently proven useful in ecotoxicology studies that involve species in remote locations...

..We propose that differences in resource allocation between males and females could result from inherent sex-based differences in parental investment...

..The suppression of tryptophan degradation by propolis extracts may therefore be related with some of its beneficial health properties in humans...

..The developmental and early resolution phases of the PHA wattle response were influenced by sex while the late resolution phase was influenced by B genotype...

..Because the RNA purification steps could influence the total RNA pool, we examined the impact of RNA isolation, using the PAXgene or Tempus method, on gene expression profiles...

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..Our experiments clearly demonstrate the utility of antibody microarray analysis of cell-culture supernatants for the profiling of cellular inflammatory mediator release...

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..This indicated that LPS might enhance T cell adaptive immunity to resist Gram-negative bacterial infection...

..Moreover these agents significantly increased the apoptosis induced by MTX, DEX, MP and COR. The results of this study suggest that P-gp is involved in the process of apoptosis in peripheral blood mononuclear cells...

..The mitogens used were concanavalin A, phytohemagglutinin, pokeweed mitogen, and Staphylococcus aureus Cowen. The results obtained provide a normal range for the production of these cytokines under specified conditions in vitro...

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..Our results point toward a contribution of the Mhc, or of other genes in linkage disequilibrium with the Mhc, in the regulation of immune responses in a wild animal species...

..This link between declining immune function and survival may reflect differences in resource partitioning between species, and suggests that selection may act on investment in immune function to influence maximum life span...

..Thus, GNA and perhaps other mannose-specific lectins, especially when used in a preventive mode, can be used to specifically block the proliferation of Type 1 E. coli in the small intestine...

..AS-101 inhibited the production of IL-10, IFNgamma, IL-2R and IL-5 in both PAA patients and controls, but there was a greater inhibitory effect in children with PAA...

..However, it decreased the production of IFN-gamma, IL-2, IL-4 and IL-10 in ConA-stimulated splenocytes. Furthermore, artelastin had no effect on apoptosis of splenocytes...

..It improves immunoreactivity, as shown by elevated IL-2R levels. Elevated IL-2 and suppressed IL-4 levels indicate a shift toward a Th1-driven lymphocyte response...

..In brief, this study demonstrates that lead can affect the immune response of the occupationally exposed individuals such as three-wheeler drivers, battery reconditioning workers and silver jewelery makers...

..Our data indicate that alterations in immune function and steroid regulation associated with depression are not related to elevated basal levels of cortisol and suggest that lymphocyte steroid resistance may be associated with TRP...

..These results suggest that cysteine proteinases like gingipains released from P. gingivalis cleave T cell surface proteins and impede T cell function...

..Our results demonstrate novel immunomodulatory activities of Eap and identify potential mechanisms of action of intravenous IgG therapy in the treatment of S. aureus infections...

..The results are consistent with a recall response by activated T cells, specific for the normally cryptic mitochondrial flavin-hapten, which may be liberated following cardiomyocyte destruction during the inflammation of the heart...

..Despite the lack of proliferation, preactivated Tc phenotypically maintain an intermediate stage of activation. These data show how the same cell population can change its functional phenotype into a non-responder state...

..CONCLUSION: IL18, IL1 beta, or TNF alpha can indirectly stimulate osteoclast formation through up regulation of RANKL production from T cells in RA synovitis; IL18 is as effective as IL1 beta, but less potent than TNF alpha...

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..We conclude that in supernatants of stimulated peripheral blood mononuclear cells homocysteine is accumulating. T cell activation could be involved in the development of moderate hyperhomocysteinaemia...

..ATs also migrated toward the MIP-3beta. These results suggest a combination of DCs and ATs as a potentially effective therapeutic strategy...

..The purpose of this study was to determine the underlying immunological effects that are associated with these apparent clinical benefits...

..To evaluate the effects of ribavirin on cytokine production of recall antigen and PHA-stimulated PBMC obtained from healthy individuals...

..Progesterone might act directly through membrane specific nonclassical steroid receptors to cause immunomodulation and suppression of T-cell activation during pregnancy...

..These defective proliferative responses of HIV- and CMV-specific CD8+ T cells were restored by the addition of IL-2 at the time of stimulation. These results may have implications for the design of immune modulation strategies in vivo...

..DISCUSSION: This activation of lymphocyte function may be indicative of a pathological stimulation in cell-mediated immunity in patients with treatment resistant depression...

..This decrease occurred in both younger and older runners and was not influenced by carbohydrate...

..Whether differential NF-kappaB activity in cord blood is related to the subsequent development of immune diseases requires further investigation...

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..The findings imply a potential application of the extracts as immunoregulators and would be in line with observations in patients using these extracts...

..In this way it acts as a powerful immunomodulatory agent...

..Our data are consistent with the hypothesis that Zn and Ni, as part of the heavy transition metals, may exchange roles in immune-mediated phenomena leading to expression of allergic contact dermatitis...

..The procedure is relatively fast (effective working time 5-6 h), does not impair monocyte function or induce substantial cell activation, and can be performed economically using equipment found in a typical blood banking environment...

..These findings constitute the first experimental proof that Ad-MSCs can efficiently control the GVHD associated with allogeneic hematopoietic transplantation, opening new perspectives for the clinical use of Ad-MSCs...

..Moreover, determination of C3435T and G2677T MDR1 polymorphisms might be useful in response prediction to therapy with methotrexate and dexamethasone...

..Sequence similarities and expression patterns suggest that cTADS could be involved in cell recognition and adhesion, and/or peptide ligand binding...

..These findings suggest a novel paradigm for immunoinhibition wherein negative regulators can finely tune, rather than inactivate, T-cell responses, and thereby skew the cytokine output of immunologic responses...

..Green and black tea extracts displayed similar immunomodulatory properties in our in vitro system, whereas C. latifolium (L.) extracts seemed to be more effective in reducing neopterin formation in stimulated cells...

..Our findings may advance our understanding of the immunobiology of stem cells and facilitate the therapeutic application of cord blood stem cells...

..Therefore, onchocystatin has the potential to contribute to a state of cellular hyporesponsiveness and is a possible pathogenicity factor essential for the persistence of O. volvulus within its human host...

..Considering these data, it can be concluded that the CLJ extract possesses immunomodulatory principles, which may mainly be due to the protein components of the extract...

..Although it has been shown to inhibit "macroscopic" inflammatory processes in animal models, its direct effects on antigen-activated human T cells have not been studied...

..CONCLUSIONS: We hypothesize that the inhibitory mechanisms of emodin on activated T cells proliferation are related to the impairment of cytokine production, IL-2 mRNA level and [Ca2+]i in the cells...

..The potent and distinct anti-HIV action of MK along with its enhanced expression in lymphocytes by various physiological stimuli suggests that MK is a cytokine that could be implicated in HIV-induced pathogenesis...

..In this context, the simultaneous elevations of type 1 cytokines (IL-2 and IFN-gamma) and LIF production by the same cells may be an attempt by the immune system to limit the exacerbation of a type 2 dominant response...

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..Artesunate and DHART may diminish some PBMC responses to immunologic stimuli. Further work is warranted to define the mechanisms involved, and whether this affects malaria treatment...

..Taken together, we report that the increased STAT5 phosphorylation can serve as a marker of T-lymphocyte entrance into IL-2-dependent stage of proliferation after T-cell activation by different mitogens...

..Cyclosporine A (CsA) inhibited the PR and the expression of activation antigens induced by PHA in PBMC from the three groups of subjects. This inhibitory effect of CsA have was enhanced by the addition of IFN-alpha...

..To study the ability of dydrogesterone to modulate the production of pro-inflammatory and anti-inflammatory cytokines by lymphocytes from women undergoing pre-term delivery (PTD)...

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..Our studies show that TNF might have unique and complex regulatory effects on growth and death of thymocyte populations in adult mice quite different from its effects on T cells in periphery...

..However, a significant fraction of PBLs were delayed or defective in G0/G1 to S-phase transit...

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..In alveolar macrophages and PBMC, however, IL-12 p 35 showed a higher expression than IL-12 p40. These results indicate that each cytokine has its own characteristic expression profile in different immune cells...

..The establishment of reliable immunoassays for detection of macaque cytokines is of importance for future progress of research utilizing macaques as experimental animals...

..Differential display is a useful method for detection of inducible genes from a small amount of material and at various time points, although the homology of PCR primer influences the displayed genes...

..Taken together, the data outline the role of CD28 and IL-12/IL-15 signaling impairment in T cell proliferative deficiency during senescence...

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..MPA could suppress T lymphocyte proliferation by down-regulating the DNA synthesis. MPA decreased especially the percentage of S phase cells decreased and increased comparatively the percentage of G(0)/G(1) phase and G(2)/M phase cells...

..01) but not HLA antigen content (P = ns). The results show a biochemical and functional abnormality in PBLs from HCV+ individuals, which may contribute to HCV chronicity...

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..The pathogenesis of associated T-LGLL and autoimmune abnormalities is not clear. In this study we have investigated the role of cytokines in the development of immune complications in LGLL...

..CONCLUSION: The IFN-gamma gene is associated with the histological phenotype in lupus nephritis...

..These results are consistent with the suggested role of leptin in modulating the immune response...

..on tonsil lymphocytes; II, III and IV are bound both leukoagglutinating (L)- and erythroagglutinating (E)-phytohemagglutinins from Phaseolus vulgaris (PHA). Pokeweed mitogen recognizes only II and III...

..were determined by turbidimetric and solid phase enzyme-linked lectin assays (ELLA) using plant lectins (phytohemagglutinins) Concanavalin A (Con A) and Pisum sativum (pea lectin) having four and two carbohydrate binding sites, ..

..to the structural characterisation of legumes are presented, with focus on issues related to detection, identification, and quantification of phytohemagglutinins relevant for their biochemical, immunological and toxicological aspects.

..proteins are members of the lectin multigene family, the most representative components being arcelins, phytohemagglutinins and alpha-amylase inhibitors...

b>Phytohemagglutinins are widely distributed in common food items. They constitute a heterogeneous group of proteins, which are often resistant to proteolysis in the gastrointestinal tract...

..These substances include proteolytic inhibitors, phytohemagglutinins, lathyrogens, cyanogenetic compounds, compounds causing favism, factors affecting digestibility and ..

..We stimulated them with superantigens, lipopolysaccharide (LPS), agonistic anti-CD40 antibody, phytohemagglutinins (PHA), IL-1beta/TNF-alpha, IL-4, or IFN-gamma...

..3 ng/mL, respectively (95% CI for median 45.2,148.6). The data suggest that although the immune system of young infants and toddlers is evolving, they are still able to respond to mitogen stimulation similar to older children...

..bisporus, consisting 90% of alpha-glucans, induced in vitro tumor necrosis factor (TNF)alpha and nitric oxide production. The purpose of this study was to evaluate the effects of consuming...

..The fundamental knowledge will provide new opportunities for explaining maladaptive homeostatic responses to somatic physiological changes, including such human pathological conditions as fibromyalgia. ..

..These studies will advance our understanding of the anatomical substrates for pain sensation in the primate thalamus. ..

..This research will provide new insights into the synergy between lamina I and V STT neurons and into the integration underlying pain, temperature and itch sensations that is altered in clinical disorders. ..

..We will evaluate the role of these factors in reducing oral transmission via breastfeeding, preventing mucosal viral shedding and delaying disease progression in infected breast-fed infants. ..

..Our tissue-based research will place us in unique a position to begin to address basic mechanistic questions about ET and may allow treating physicians to predict during life which subtype of ET a patient is likely to have. ..

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..Our goal is to develop evidence-based nutrition counseling messages about safer practices for HIV-infected women and their infants around the time of weaning. ..

..This is a five-year competitive renewal in which we propose to firmly establish the links between this neurotoxin and ET. ..

..Hence, the experiments will shed new light of mechanisms accounting for the co-morbidity of vertigo/dizziness and migraine symptoms in patients. ..

..This is a five-year competitive renewal in which we propose to firmly establish the links between this neurotoxin and ET. ..

..Our goal is to develop evidence-based nutrition counseling messages about safer practices for HIV-infected women and their infants around the time of weaning. ..

..Knowledge of the pathological changes and neurochemical abnormality in ET is critical for the design of new therapies for ET. ..

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..Identification and understanding these toxicants is the first step in preventing a disease with only limited treatment options. ..

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..This work may have important implications for disorders of memory including Korsakoff's syndrome, diencephalic amnesia and Alzheimer's disease. ..

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..In addition, we will evaluate the associations between manganese, organic solvents and ET using a lifetime Occupational History. ..

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..This work may have important implications for conditions such as Alzheimer's that involve a loss of cholinergic neurons of the MS/DBv. ..

..Improving assessment of these functions in hearing impaired individuals requires experiments such as the one proposed to increase our knowledge about the anatomical and physiological basis for neural processing of sound...

..Results should lead to a better understanding of the influence of experience on the development of these binaural sensory pathways. ..

..The goal of our studies is to provide insights in prevention and treatment of severe RSV disease in the elderly. ..

..Better understanding of the mechanisms that contribute to the establishment of allergic responses may eventually be used in novel preventative or therapeutic strategies. ..

..Toxicity as well as clinical response will be secondary endpoints. The cohort with the optimal level of immune response will be taken forward in future studies. ..

..I. on acute HCV infection in chimpanzees, as well as on liver immunology and on 'NKT' cells in general. ..

..tuberculosis would clarify whether fluoroquinolones are indeed a viable option for the first-line treatment of tuberculosis, and how best to preserve their usefulness against tuberculosis. ..

..Our ultimate goal is to augment the ability of human immune cells to destroy tumor by altering the interaction of molecules that limit immunity in cancer patients like PD-1. ..

..tuberculosis would clarify whether fluoroquinolones are indeed a viable option for the first-line treatment of tuberculosis, and how best to preserve their usefulness against tuberculosis. ..

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..I. on acute HCV infection in chimpanzees, as well as on liver immunology and on 'NKT' cells in general. ..

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..The insights gained may also lead to an improved understanding of the mechanisms through which BCG protects against TB, and identify ways in which to develop a more effective TB vaccine. ..

..These preclinical studies are necessary to evaluate the hypothesis that human CD1d-reactive T cells have the therapeutic potential to selectively suppress acute GvH in the context of conventional BM and PBPC transplants for cancer. ..

..The results of those assays will be used to design randomized phase III trials for resected high risk melanoma and to develop strategies for overcoming antigen-specific unresponsiveness in melanoma patients. ..

..To insure that spontaneous regression does not account for a portion of the responses, baseline measurements will be followed one month later by a second set of assessments prior to the start of the vaccine. ..

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