arenaria and E. farctus might be at a competitive advantage relative to the other considered
species with respect to the increase of air temperature, by their ability to photosynthesize at sufficient rates also during summer.”
“The 1:1 and 2:1 host-guest complexation of a series of 1,n-bis(isoquinolinium)alkane dications (Iq(CH2)(n)Iq(2+), n=2, 4, 5, 6, 8, 9, 10 and 12, and Iq(p-xylene)Iq(2+)) by cucurbituril (CB) in aqueous solution has been investigated by H-1 NMR spectroscopy and ESI mass spectrometry. The site of binding of the first CB is dependent on the nature of the central linker group, with encapsulation of the p-xylene group or the polymethylene chain when n=6-10.With shorter (n=2-5) or longer (n=12) chains, the first CB binds over an isoquinolinium group. With a second CB, the binding
of the central group is abandoned in favour of the CB hosts encapsulating this website the two cationic isoquinolinium termini. The 1:1 and 2:1 host-guest stability constants are related to modes of binding and the nature of the central linkers, and are compared with dicationic guests bearing different terminal groups.”
“The quality assessment of African traditional herbal medicinal products is a difficult challenge since they are complex mixtures of several herbal drug or herbal drug preparations. The plant source is also often unknown AG-120 solubility dmso and/or highly variable. Plant metabolites chromatographic profiling is therefore an important tool for quality control of such herbal products. The objective of this work is to propose a protocol for sample preparation and gas chromatographic profiling of non-polar metabolites for quality control of African traditional herbal medicinal products. The methodology is based on the chemometric assessment of chromatographic profiles of non-polar metabolites issued from several batches of leaves of Combretum micranthum and Mitracarpus scaber by high temperature gas chromatography coupled to mass spectrometry, performed on extracts obtained in CDK inhibitor review refluxed dichloromethane, after removal of chlorophyll pigments. The method using high temperature gas chromatography after dichloromethane extraction allows detection of most non-polar bioactive
and non-bioactive metabolites already identified in leaves of both species. Chemometric data analysis using Principal Component Analysis and Partial Least Squares after Orthogonal Signal Correction applied to chromatographic profiles of leaves of Combretum micranthum and Mitracarpus scaber showed slight batch to batch differences, and allowed clear differentiation of the two herbal extracts. (C) 2013 Elsevier B.V. All rights reserved.”
“A gelatin phantom containing an optically scattering funnel-shaped region of elevated optical density (OD) was used to examine light-scattering-induced artefacts in a cone-beam optical CT scanner used for gel dosimetry. To simulate polymer gel dosimeters, the opacity was introduced by adding a colloidal scatterer to the gelatin.
The primary objective of this study was to assess the effect of a 2-hour PALS training session utilizing high-fidelity mannequins on residents’
psychomotor skills performances.\n\nMETHODS: Between February and June 2009, residents from two urban family medicine residency programs received training on four PALS procedures (bag-mask ventilation, tracheal intubation, intraosseous line placement, and cardiac rhythm assessment/defibrillation) at a university simulation center. Residents completed questionnaires to provide data on previous resuscitation training and experience. We collected self-confidence data and video recordings of residents performing the procedures before and after training. To assess retention at 6 months, we collected self-confidence data and video recordings of PGY-1 and PGY-2 residents
performing the procedures. A blinded reviewer scored the video recordings.\n\nRESULTS: Forty-seven https://www.selleckchem.com/products/citarinostat-acy-241.html residents completed the study. The majority of residents (53.2%) had never performed any of the procedures on a real patient. Immediately following skills training, mean overall performance improved from 39.5% (+/- 11.5%) to 76.5% (+/- 10.4%), difference 37.0% (95% Alvocidib CI, 33.5%-40.6%). Bag-mask ventilation and intraosseous insertion skills remained above baseline at 6-month follow-up.\n\nCONCLUSIONS: Simulation training is beneficial for teaching PALS procedures to family medicine residents.”
“Acute lymphoblastic leukemia (ALL) Saracatinib research buy is a major cause of mortality and morbidity in childhood, and the causes of ALL are not completely understood. microRNAs (miRNAs) regulate various biological processes including organ development, cell growth regulation, cell differentiation, apoptosis, and tumorigenesis. We performed a case-control study with 570 childhood ALL cases and 673 cancer-free controls to investigate the association between hsa-miR-196a2 rs11614913 T bigger than C polymorphism and ALL risk. The bioinformatics was used to estimate the potential
target of hsa-miR-196a2. In the present study, the hsa-miR-196a2 variant TC heterozygote, and CC/TC genotypes were found to be associated with a significantly increased childhood ALL risk, compared with the TT wild-type homozygote (adjusted OR= 1.50, 95% CI= 1.15-1.95 for TC and OR= 1.40, 95% CI= 1.09-1.79 for CC/TC). Further, the difference was pronounced in younger ( smaller than = 6) subjects or parental non-drinker. The significance of the increased risk is more obvious than the higher treatment branch. Additionally, we found that the rs11614913 TC genotype can increase B-phenotype ALL risk (OR = 1.37,95% CI = 1.07-1.76). Finally, combination of three bioinformatics approaches revealed that HOXC8 may be the target gene of hsa-miR-196a2. Taken together, our finding suggested that hsa-miR-196a2 rs11614913 T bigger than C may increase the risk of childhood ALL. Large studies with the function of hsa-miR-196a2 are needed in the further study. (C) 2013 Elsevier B.V.
Materials and methods: Lung injury was induced by
intranasal instillation with 10 mu g LPS. Mice were randomly divided into four groups:\n\nControl group; LPS group; LPS+5 ml/kg DHI group and LPS+10 ml/kg DHI group. The effects of DHI on LPS-induced neutrophils influx, inflammatory cytokines release, protein leakage, myeloperoxidase (MPO) and superoxide dismutase (SOD) activities, malondialdehyde (MDA) level were examined. In addition, the NF-kappa B activation in lung tissues LDC000067 purchase was detected by Western blot.\n\nResults: In LPS challenged mice, DHI significantly reduced the infiltration of activated neutrophils and decreased the levels of TNF-alpha and IL-6 in bronchoalveolar lavage fluid (BALE). DHI also inhibited protein extravasation in BALF, attenuated edema and the pathological changes in the lung. In addition, DHI markedly prevented LPS-induced elevation of MDA and MPO levels, as well as reduction of SOD activity. Further study demonstrated that DHI effectively inhibited the NF-kappa B activation in lung tissues.\n\nConclusion: DHI has been demonstrated to protect mice from LPS induced acute lung injury by its anti-inflammatory
and anti-oxidant activities. (C) 2013 Elsevier Ireland Ltd. All rights reserved.”
“Although Sapitinib large quantities of air pollutants are released into the atmosphere, they are partially monitored and routinely assessed for their health implications. This paper proposes a statistical model describing the temporal behavior of hazardous air pollutants (HAPs), which can have negative effects on human health. Benzo[a]pyrene
(BaP) is selected for statistical modeling. The proposed model incorporates the linkage between BaP and meteorology and is specifically formulated to identify meteorological effects and allow for seasonal trends. The model is used to estimate and forecast temporal fields of BaP conditional on observed (or forecasted) meteorological conditions, including temperature, precipitation, wind speed, and air quality. The effects of BaP on human health are examined by characterizing health indicators, namely the cancer risk and the hazard quotient. The model provides useful information for selective HDAC inhibitors the optimal monitoring period and projection of future BaP concentrations for both industrial and residential areas in Korea. (C) 2013 Elsevier Ltd. All rights reserved.”
“The objective of the study was to evaluate the relationship of veterinary clinical assessments of lameness to probability estimates of lameness predicted from vertical kinetic measures. We hypothesized that algorithm-derived probability estimates of lameness would accurately reflect vertical measures in lame limbs even though vertical changes may not inevitably occur in all lameness.
We also explored whether neurochemical biomarkers (monoamine oxidase, MAO; acetylcholinesterase, ChE; muscarinic acetylcholine receptor, mAChR; N-methyl-d-aspartate receptor, NMDAR) previously shown to be altered by MeHg in other wildlife were associated with brain Hg levels in these bats. Concentrations of Hg (total and MeHg) in tissues were significantly higher (10-40 fold difference) in South River bats when compared to reference sites. Mean tissue mercury levels (71.9 ppm dw in liver, 7.14 ppm dw in brain, 132 ppm fw in fur) in the South River bats exceed (sub)-clinical thresholds in mammals. When compared to the South River bats, animals from the reference site showed a greater ability
to demethylate MeHg in brain (33.1% of total Hg was MeHg vs. 65.5%) and liver (8.9% of total Hg was MeHg vs. 50.8%) thus suggesting differences in their ability to detoxify Birinapant and eliminate PF-6463922 price Hg. In terms of Hg-associated neurochemical biomarker responses, interesting biphasic responses were observed with an inflection point between 1 and 5 ppm dw in the brain. In the reference bats Hg-associated decreases in MAO (r = -0.61; p < 0.05) and ChE (r = -0.79; p < 0.01) were found in a manner expected but these were not found in the bats from the contaminated site. Owing to high Hg exposures, differences in Hg metabolism, and the importance of the aforementioned neurochemicals in multiple facets of animal health, altered or perhaps even
a lack of expected neurochemical responses in Hg-contaminated bats raise questions about the ecological and physiological impacts of Hg on the bat population as well as the broader ecosystem
in the South River.”
“Controversial data on the lipid-lowering effect of dietary pea proteins have been provided and the mechanisms behind this effect are not completely understood. The aim of the study was to evaluate a possible hypolipidemic activity of a pea protein isolate and to determine whether pea proteins could affect the hepatic lipid metabolism through regulation of genes involved in cholesterol and fatty acid homeostasis. Rats LDN-193189 mouse were fed Nath’s hypercholesterolemic diets for 28 days, the protein sources being casein or a pea protein isolate from Pisum sativum. After 14 and 28 days of dietary treatment, rats fed pea proteins had markedly lower plasma cholesterol and triglyceride levels than rats fed casein (p<0.05). Pea protein-fed rats displayed higher hepatic mRNA levels of LDL receptor versus those fed casein (p<0.05). Hepatic mRNA concentration of genes involved in fatty acids synthesis, such as fatty acid synthase and stearoyl-CoA desaturase, was lower in pea protein-fed rats than in rats fed casein (p<0.05). In conclusion, the present study demonstrates a marked cholesterol and triglyceride-lowering activity of pea proteins in rats. Moreover, pea proteins appear to affect cellular lipid homeostasis by upregulating genes involved in hepatic cholesterol uptake and by downregulating fatty acid synthesis genes.
CONCLUSIONS: Expression of activated LXR alpha blocks proliferation of human colorectal cancer cells and slows the growth of xenograft tumors in mice. It also reduces
intestinal tumor formation after administration of chemical carcinogens, and in Apc(min/+) mice. LXR agonists therefore might be developed as therapeutic treatments for colorectal cancer.”
“Aims Although several factors contribute to wound healing, bacterial infections and the presence of biofilm can significantly affect healing. Despite that this clearly indicates that therapies should address biofilm in wounds, only few wound care products have been evaluated for their antibiofilm effect. For this reason, SN-38 ic50 we developed a rapid quantification approach to investigate
the efficacy of wound care products on wounds infected with Staphylococcus spp. Methods and Results An in vitro chronic wound infection model was used in which a fluorescent Staph.aureus strain was used to allow the rapid quantification of the bacterial burden after treatment. A good correlation was observed between the fluorescence signal and the bacterial counts. When evaluated in Proteasome inhibitor this model, several commonly used wound dressings and wound care products inhibited biofilm formation resulting in a decrease between one and seven log CFU per biofilm compared with biofilm formed in the absence of products. In contrast, most dressings only moderately affected mature biofilms. Conclusion Our model allowed the rapid quantification of the bacterial burden after treatment. However, the efficacy of treatment varied between the different types of
dressings and/or wound care products. Significance and Impact of the Study Our model can be used to compare the efficacy of wound care products to inhibit biofilm formation and/or eradicate mature biofilms. In addition, the results indicate that treatment of infected wounds should be started as soon as possible and that novel products with more potent antibiofilm activity are needed.”
“Duez H, Staels B. Rev-erb-alpha: an integrator of circadian rhythms and metabolism. J Appl Physiol 107: 1972-1980, 2009. First published August 20, 2009; doi:10.1152/japplphysiol.00570.2009.-The endogenous circadian clock ensures daily Compound C cell line rhythms in diverse behavioral and physiological processes, including locomotor activity and sleep/wake cycles, but also food intake patterns. Circadian rhythms are generated by an internal clock system, which synchronizes these daily variations to the day/night alternance. In addition, circadian oscillations may be reset by the time of food availability in peripheral metabolic organs. Circadian rhythms are seen in many metabolic pathways (glucose and lipid metabolism, etc.) and endocrine secretions (insulin, etc.). As a consequence, misalignment of the internal timing system vs.
This presentation appears to belong to the spectrum of palmar fasciitis and polyarthritis syndrome. Rheumatologists have recognised this syndrome as a paraneoplastic disorder and subsequent investigations in our patient revealed an elevated cancer antigen 125 and an inoperable ovarian carcinoma. selleck compound Indurated palmar erythema is a sign that is not widely recognised by dermatologists as a clue for this paraneoplastic syndrome, and skin biopsy demonstrating dermal and subcutaneous fibroplasia may help in
diagnosis in the absence of advanced signs of palmar fasciitis.”
“Pigment pattern variation across species or populations offers a tractable framework in which to investigate the evolution of development. Juvenile threespine sticklebacks (Gasterosteus aculeatus) from marine and freshwater environments exhibit divergent pigment patterns that are associated with ecological differences. Juvenile marine sticklebacks have a silvery appearance, whereas sticklebacks from freshwater environments exhibit a pattern of vertical bars. We investigated both the developmental and molecular basis of this population-level variation in pigment pattern. Time course imaging during the transition from larval to juvenile stages revealed differences between marine and freshwater fish in spatial patterns of chromatophore differentiation as well as in pigment amount and
dispersal. In freshwater fish, melanophores selleck kinase inhibitor appear primarily within dark bars whereas iridophores appear within light bars. By contrast, in marine fish, these chromatophores are interspersed across the flank. In addition to spatially segregated chromatophore differentiation, pigment amount and dispersal within melanophores varies spatially across the flank of freshwater, but not marine fish. To gain insight into the molecular pathways that underlie the differences HKI-272 mouse in pigment pattern development, we evaluated
differential gene expression in the flanks of developing fish using high-throughput cDNA sequencing (RNA-seq) and quantitative PCR. We identified several genes that were differentially expressed across dark and light bars of freshwater fish, and between freshwater and marine fish. Together, these experiments begin to shed light on the process of pigment pattern evolution in sticklebacks.”
“The present study was undertaken to investigate the potential of monocrotophos (MCP), one of the widely used broad spectrum systemic organophosphorus insecticides (OPI) in India, to alter small intestinal structure and function. Further, its potential to exacerbate diabetes induced alterations in intestinal structure and function was also studied in experimentally induced diabetic rats. Rats were rendered diabetic with an acute dose of strepiozotocin (60 mg/kg b.w.). MCP was orally administered at a sublethal dose (1/20 LD50 i.e. 0.9 mg/kg b.w./d) for 15 days to both normal and diabetic rats. MCP significantly increased unit weight of intestine in diabetic rats.
Results and clinical records were reviewed.\n\nResults: All the patients’ left recurrent laryngeal nerves were identified during operation by intraoperative recurrent laryngeal nerve monitoring. Twenty-four patients retained normal left recurrent laryngeal nerves after the operation. One patient, in whom part of the left recurrent laryngeal nerve was found to be invaded, underwent single-stage
nerve anastomosis under recurrent laryngeal nerve monitoring after the invaded nerve was resected. There were no significant intraoperative or postoperative complications among the other patients.\n\nConclusions: Intraoperative recurrent laryngeal nerve monitoring during thoracotomy is a safe and effective way of identifying the nerve. It may help
surgeons to avoid injuring the recurrent laryngeal LY2835219 inhibitor nerve during some thoracic procedures. (J Thorac Cardiovasc Surg 2010;140:578-82)”
“Reactions of 2-iodoanilines with ethyl buta-2,3-dienoate catalyzed by potassium carbonate and CuI in one pot generate the corresponding ethyl 2-methyl-1H-indole-3-carboxylate products in moderate yields under mild conditions.”
“Background Napabucasin in vitro & Aims: Liver fibrosis is a significant concern for patients with hepatitis C virus/human immunodeficiency virus co-infection. Fibrosis staging by biopsy is accurate, but costly and invasive. Several fibrosis prediction models using noninvasive
biomarkers have been developed but are suboptimal in co-infected patients. We compared results from different staging models and ordinal regression with biopsy data. Methods: Data from the Adult Acquired Immune Deficiency Syndrome Clinical Trials Group protocol A5178 were used to evaluate 5 models of fibrosis staging; areas under receiver-operator characteristic curves (AUROC) were assessed. Individual covariates were assessed with univariable regression and then entered into an ordinal logistic regression model from which a stage-wise index was developed. Results: Data from 173 patients were evaluated; 85% were on antiretroviral therapy, 31.2% had severe fibrosis (F3/F4), and 14% had cirrhosis (F4). Differences in CD4+ cell and platelets counts and international normalized ratio values Protein Tyrosine Kinase inhibitor were observed between those with and without F3/F4. Among existing models, the FIB-4 index ([age X AST])/[platelet count x (ALT)(1/2)]) performed best, with 88% specificity for F4 and greater than 86% negative predictive values for F3/F4, although AUROC values were low (0.56 +/- 0.03 for F3/F4). By using patients’ demographic, clinical, and laboratory data, the ordinal regression model outperformed others, with an AUROC of 0.85 (standard error, 0.03) for predicting stage F3/F4 and 0.89 (standard error, 0.05) for stage 3 alone.
study included data from 11,209 women aged 65 years or more who participated in two large health studies, the Tromso Health Study in 1994-1995 and the Nord-Trondelag Health Study in 1995-1997. Forearm bone mineral density (BMD) was measured by single-energy X-ray absorptiometry in a subsample of women ACY-241 Epigenetics inhibitor (n = 7333) at baseline. All women were followed with respect to hospital-verified forearm fractures (median follow-up 6.3 years). A total of 9249 and 1960 women lived in areas classified as rural and urban, respectively. Urban women had an increased forearm fracture risk [relative risk (RR) = 1.29, 95% confidence interval (CI) 1.09-1.52] compared with women in rural areas. Rural women had higher body mass index (BMI)
than urban women, and the RR was moderately reduced to 1.21 (95% CI 1.02-1.43) after BMI adjustments. Rural women had the highest BMD. In the subgroup with measured BMD, adjustments for BMD changed the urban versus rural RR from 1.21 (95% CI 0.96-1.52) to 1.05 (95% CI 0.83-1.32), suggesting that BMD is an important explanatory factor. In conclusion, higher rates of forearm learn more fractures was found in urban compared with rural women. (C) 2011 American Society for Bone and Mineral Research.”
“To identify clinical prognostic factors for survival of patients with squamous cell carcinoma (SqCC) arising from mature cystic teratoma (MCT) of the ovary with review of the published
reports.\n\nClinical data of 55 patients with SqCC arising from MCT of the ovary who were reported in the Korean Journal of Obstetrics and Gynecology and the Korean Journal of Gynecologic Oncology and Colposcopy between 1992 and 2006 were reviewed. Clinical factors were analyzed to identify their association with disease-free survival and overall survival JQ1 manufacturer (OS), which were evaluated using the Kaplan-Meier analysis with the log-rank test. Clinical prognostic factors were identified using Cox’s proportional hazard analysis.\n\nPatients with disease confined within the ovary (n = 31) or ascites < 500 mL (n = 15) had the benefit of a higher mean OS than those with advanced disease (n = 8) (116 vs 21 months, P = 0.004) and ascites >= 500 mL (n = 7) (106 vs 8 months, P = 0.005), respectively. Disease confined within the ovary and ascites < 500 mL were good prognostic factors by univariate but not multivariate Cox’s proportional hazard analyses (HR = 0.123 and 0.139, 95% confidence interval = 0.022-0.670 and 0.027-0.722, respectively).\n\nDisease confined within the ovary and a smaller amount of ascites may be good prognostic factors for the OS of patients with SqCC arising from MCT of the ovary.
\n\nDesign: Genotyping was performed by standard polymerase chain reaction-restriction fragment length polymorphism assay (PCR-RFLP) in 13 nuclear families and 184 unrelated subjects. Statistical analysis was performed using the transmission disequilibrium test (TDT) for the family dataset and Chi-square test and multivariate logistic regression modelling for the case-control
dataset.\n\nResults: TDT analyses did not detect evidence of over transmission of IL8 rs4073 alleles in affected and unaffected family members (allele T: 52%; allele A: 48%; p = 0.2252). How expected, analyses Captisol molecular weight of cases and unrelated controls showed a significant and inverse association of age with AgP; however, a lack of association between genotypes, ethnic groups and generalized AgP was observed.\n\nConclusions: The SNP (rs4073) was not associated with AgP in unrelated individuals and there is no evidence of over transmission of the alleles in families with AgP, from Brazilian individuals. (C) 2012 Elsevier Ltd. All rights reserved.”
“Abnormal neurodevelopmental processes are found in the brains of schizophrenia patients. Nerve growth factor (beta polypeptide) (NGF) is known to play a major role in neuronal growth, differentiation, and neuroprotection of the brain. To investigate whether NGF polymorphisms are associated with schizophrenia patients, eight single nucleotide polymorphisms (SNPs; rs10776800, rs11102924, rs4839435,
rs12760036, rs11102919, rs11466098, rs2268793, and
rs6330) of PF-02341066 nmr the NGF were selected and genotyped by direct JQ-EZ-05 Epigenetics inhibitor sequencing in 217 schizophrenia patients and 378 control subjects. SNPAnalyzer, SNPStats, and Haploview version 4.2 were used to analyze the genetic data. Multiple logistic regression models (codominant1, codominant2, dominant, recessive, overdominant, and log-additive) were performed to calculate odds ratios (ORs), 95% confidence intervals (CIs), and P values. P values (Pc) were recalculated using Bonferroni correction to better define results. It was found that the allele frequency of rs12760036 SNP of the NGF was associated with the susceptibility to schizophrenia (Pc = 0.0016, OR = 1.65, 95% CI = 1.27-2.15). Genotype frequency of rs12760036 of the NGF was also associated with schizophrenia patients (P(c) = 0.0024, OR = 1.90, 95% CI = 1.34-2.71). In the linkage disequilibrium block between rs12760036 and rs4839435, the AG and CA haplotype frequencies between schizophrenia patients and the control group were significantly different (P = 0.0002; P = 0.0033, respectively). These results suggest that the rs12760036 may be a risk factor to the susceptibility of schizophrenia in Korean population.”
“Fibrous pseudotumor, previously named nodular fibrous periorchitis, is a very rare disease entity in the pediatric patient. This is the first reported case of bilateral synchronous fibrous pseudotumors in the testes of a pediatric patient. Published by Elsevier Ltd on behalf of Journal of Pediatric Urology Company.
Here, the apc5(CA) mutant background is used to study a previously uncharacterized functional antagonistic genetic interaction between Gcn5 and Hda1 that is not detected in APC5 cells.\n\nResults: Using Northerns, Westerns, reverse transcriptase PCR (rtPCR), chromatin immunoprecipitation (ChIP), and mutant phenotype suppression analysis, we observed that Hda1 and Gcn5 appear to compete for recruitment to promoters. We observed that the presence of Hda1 can partially occlude the binding of Gcn5 to the same promoter. Occlusion of Gcn5 recruitment to these promoters involved Hda1 and Tup1. Using Selleckchem HM781-36B sequential ChIP we show that Hda1 and Tup1 likely form complexes at these promoters,
and that complex formation can be increased by deleting GCN5.\n\nConclusions: Our data suggests large Gcn5 and Hda1 containing complexes may compete for space on promoters that utilize the Ssn6/Tup1 repressor complex. We predict that in apc5(CA) cells the accumulation Selonsertib of an APC target may compensate for the loss of both GCN5 and HDA1.”
“Fatigue crack initiation in ductile alloys like austenitic stainless steels is mainly due to the occurrence of localized deformation in persistent slip bands (PSB). The presence of PSB is classically related to the orientation of the surface grains. In fact, the local fields in a grain does not depend on the local orientation only. The aim of the present paper is to investigate the consequences
of this observation, and to propose an analysis, where the neighborhood of the grain also plays a significant role. The study is made on a 316 stainless steel. Finite element computations using a crystal plasticity model are performed to simulate an aggregate submitted to a cyclic tension compression loading. Various configurations
of grain orientations (“clusters”) are studied at the free surface of the aggregate. A statistical Histone Methyltransf inhibitor analysis of the results is carried out to extract significant information concerning the local strain and stress fields, including the most critical arrangements of grain orientations. The introduction of local fields in classical fatigue life prediction models provides an explanation of the experimental scatter. (C) 2010 Elsevier Ltd. All rights reserved.”
“The environmental contaminant 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) produces marked suppression of the primary humoral immune response in virtually every animal species evaluated thus far. In addition, epidemiological studies performed in areas of dioxin contamination have identified an association between TCDD exposure and an increased incidence of non-Hodgkin’s lymphoma (NHL). Recent studies using an in vitro CD40 ligand model of human B cell differentiation have shown that TCDD impairs both B cell activation and differentiation. The present study extends these findings by identifying B cell lymphoma-6 [BCL-6] as a putative cellular target for deregulation by TCDD, which may contribute to suppression of B cell function as well as NHL.