Neopterin was not associated

with smoking in the multivar

Neopterin was not associated

with smoking in the multivariate model (Table 4). This community-based study among 7052 individuals investigated potential determinants of plasma neopterin, KTR and a large panel of kynurenines. Higher concentrations of neopterin, KTR and most kynurenines were observed in elderly compared to middle-aged subjects, and concentrations of Trp and most kynurenines were higher in men than in women. Furthermore, renal function was associated inversely with plasma levels of neopterin, KTR and most kynurenines. Lastly, higher concentrations of KTR, Trp and most kynurenines were found in overweight/obese compared to normal-weight participants, whereas Trp and most kynurenines were lower in heavy than in never smokers. The higher plasma levels of neopterin and KTR observed in the older group are in agreement LY294002 with previous studies [9-12, 33]. In the present study, elevated KTR in the elderly was driven mainly by markedly increased Kyn concentrations, indicating a more pronounced IDO activation in this age group. Elevated neopterin and KTR indicate increased IFN-γ activity in the older group, accompanying age-related inflammation [1]. Older click here age was also associated with higher concentrations of all kynurenines, except XA. Others have reported no association of age with serum

Kyn [13] or KA [34]. This discrepancy may be explained by a smaller sample size (n < 50) in previous studies. We

observed lower neopterin in men than in women in the middle-aged group, but not in the elderly. This observation is in accordance with published results [12]. There was no difference in KTR between genders in the present study in subjects aged 45–72 years, which is in agreement with a previous study on subjects older than 50 years of age [15], but in contrast to an observation of higher KTR in men in a younger population (21–64 years) [14]. This indicates no differences in activities of IDO or TDO between genders among middle-aged and elderly people, but possibly in younger subjects, including premenopausal women. The higher concentrations of Trp very and most kynurenines in men may be related to higher protein intake and/or turnover; the latter may be explained by higher muscle mass in men. The downstream effects on most kynurenines may simply reflect that Trp availability increases the flux through the kynurenine pathway, as more than 90% of Trp is metabolized through this pathway [3]. The higher concentrations of neopterin, KTR and kynurenines in individuals with moderately reduced renal function – indicated by lower eGFR (eGFR < 98 ml/min/1·73 m2 in the middle-aged and eGFR < 78·7 ml/min/1·73 m2 in the elderly) – are in line with studies in patients with severe renal disease reporting increased plasma concentrations of neopterin [18], Kyn [16, 17] and KA [17].

The authors declare no financial or commercial conflict of intere

The authors declare no financial or commercial conflict of interest. “
“Recent scientific discoveries fuelled by the application of next-generation DNA and RNA sequencing technologies highlight the striking impact of these platforms in characterizing multiple selleck screening library aspects in genomics research. This technology has been used in the study of the B-cell

and T-cell receptor repertoire. The novelty of immunosequencing comes from the recent rapid development of techniques and the exponential reduction in cost of sequencing. Here, we describe some of the technologies, which we collectively refer to as Rep-Seq (repertoire sequencing), to portray achievements in the field and to present the essential and inseparable role of next-generation sequencing to the understanding of entities in immune response. AG-014699 chemical structure The large Rep-Seq data sets that should be available in the near future call for new computational algorithms to segue the transition from ‘classic’ molecular-based

analysis to system-wide analysis. The combination of new algorithms with high-throughput data will form the basis for possible new clinical implications in personalized medicine and deeper understanding of immune behaviour and immune response. Next-generation sequencing (NGS) has established itself as a highly useful platform in characterizing multiple aspects of genomics research. It has been used to re-sequence

Methane monooxygenase the genome of previously sequenced organisms (re-sequencing);1 sequence the genomes of organisms with unknown sequences (de novo sequencing, e.g. application2 and algorithm3); determine RNA abundance levels (RNA-seq);4 determine protein–DNA binding regions (ChIP-seq);5 determine protein–RNA binding sequences (CLIP-seq)6; and more.7–9 This technology has been used in the study of the immunoglobulin repertoire. Described here, through the collection of presented works, is how a systematic, accurate, unbiased analysis of the immunological repertoire is within reach. The immunological repertoire is the collection of trans-membrane antigen-receptor proteins located on the surface of T and B cells. The combinatorial mechanism that is responsible for encoding the receptors, does so by reshuffling the genetic code, with a potential to generate more than 1018 different T-cell receptors (TCRs) in humans,10 and a much more diverse B-cell repertoire. These sequences, in turn, will be transcribed and then translated into protein, to be presented on the cell surface. The recombination process that rearranges the gene segments for the construction of the receptors is key to the development of the immune response, and the correct formation of the rearranged receptors is critical to their future binding affinity to antigen.

Accordingly, there was no recovery of FVIII activity 30 min after

Accordingly, there was no recovery of FVIII activity 30 min after FVIII injection to the BM/FVIII, while FVIII selleck chemicals recovery in BM/PBS was 0·69 ± 0·15 IU/ml (Supporting information

Fig. S1). In the case of BM/PBS mice, an anti-FVIII immune response developed with kinetics similar to that previously described;12 anti-FVIII IgG developed from the third FVIII administration and titres reached 767·6 ± 271·5 μg/ml after the fifth FVIII administration. In contrast, BM/FVIII mice developed negligible anti-FVIII IgG titres even 5 days after the fourth administration of FVIII (15 ± 19·4 μg/ml), compared with BM/PBS mice (179·5 ± 138 μg/ml, P < 0·01). In BM/FVIII mice, however, anti-FVIII IgG development initiated after the fifth injection of FVIII (103·3 ± 94 μg/ml) and reached 460 ± 278·2 μg/ml after a sixth FVIII administration. Similar results were obtained when inhibitory titres were measured in the serum of the mice using a Bethesda assay (Fig. 2b). Importantly, transfer of maternal anti-FVIII IgG influenced neither the total levels of circulating

IgG in the offspring (Fig. 2c), nor the capacity of the Selleckchem GSI-IX offspring to mount classical immune responses to an unrelated exogenous antigen such as OVA (Fig. 2d). We then analysed the effect of the transfer of maternal anti-FVIII IgG on FVIII-specific cellular immune responses. Splenocytes from BM/FVIII and BM/PBS mice administered five times with FVIII, were stimulated with FVIII in vitro. T cells from BM/FVIII and BM/PBS mice demonstrated identical capacities to proliferate in the presence of concanavalin A (Fig. 2e). In contrast, splenocytes from BM/FVIII mice marginally proliferated upon stimulation with FVIII compared

with splenocytes from BM/PBS mice; the ratios of stimulation indices being 1·63 ± 0·38 versus 3·09 ± 0·83, respectively (P < 0·05). Together, the data suggest that the transfer of anti-FVIII IgG from the mother to the progeny is associated with a reduced capacity to develop an anti-FVIII immune response. The transfer of maternal IgG to the offspring occurs during gestation through the placenta and during lactation through the intestinal epithelium.4 We investigated which of the two types of transfer is critical to impair the capacity of the progeny to develop an antigen-specific Mannose-binding protein-associated serine protease immune response. Mothers of BM/FVIII and BM/PBS mouse pups were interchanged at the time of birth so that some BM/PBS pups received anti-FVIII IgG during lactation (B/PBSM/FVIII) and some BM/FVIII pups did not receive antibodies from birth until the start of the FVIII immunization protocol (B/FVIIIM/PBS). In parallel, some BM/FVIII and BM/PBS pups were kept with their original mothers (referred to as B/FVIIIM/FVIII and B/PBSM/PBS, respectively). The pups were weaned at 5 weeks of age. At 8 weeks of age, B/FVIIIM/PBS mice did not have residual maternal anti-FVIII IgG, as assessed by ELISA (Fig.

The authors have no conflicts of interest to disclose “
“Ci

The authors have no conflicts of interest to disclose. “
“Citation Wira CR, Patel MV, Ghosh M, Mukura L, Fahey JV. Innate immunity in the human female reproductive tract: endocrine regulation of endogenous antimicrobial protection against HIV and other sexually transmitted infections. Am J Reprod Immunol 2011; 65: 196–211 Mucosal surfaces of the female reproductive tract (FRT) contain a spectrum of antimicrobials that provide the first line of defense against viruses, Alisertib concentration bacteria, and fungi that enter the lower FRT. Once thought to be a sterile compartment, the upper FRT is periodically exposed to pathogens throughout the menstrual cycle. More recently, secretions from the upper FRT have

been shown to contribute to downstream protection in the lower FRT. In this review, we examine the antimicrobials in FRT secretions made by immune cells and epithelial cells in the upper and lower FRT that contribute to innate protection. Because each site is hormonally regulated to maintain

fertility, this review focuses on the contributions of hormone balance during the menstrual cycle to innate immune protection. As presented in this review, studies from our laboratory and others demonstrate that sex hormones regulate antimicrobials produced by innate immune cells throughout the FRT. The goal of this review is to examine the spectrum of antimicrobials in the FRT and the ways in which they are regulated to provide protection against pathogens that compromise reproductive

check details health and threaten the lives of women. Sexually transmitted infections (STI) are a major worldwide health problem.1 Despite extensive efforts, only limited success has been achieved Methocarbamol in dealing with a growing list of STI that include bacteria (group B streptococcus, Neisseria gonorrhoeae, Chlamydia trachomatis, Treponema pallidum), parasites (Trichomonas vaginalis), and viruses [herpes simplex (HSV), human papilloma (HPV) and human immunodeficiency (HIV) virus]. Taken together, more than 20 pathogens, all of which are transmissible through sexual intercourse, account for approximately 340 million new STI cases annually.2 Since 1975, HIV has accounted for approximately 25 million deaths with an additional 33.4 million people (of which approximately 50% are female) currently infected worldwide.3 In sub-Saharan Africa, the area hardest hit by the pandemic, women living with HIV/AIDS make up approximately 60% of the number of HIV-infected people.3 Depending on the African country analyzed, infection rates vary from 5 to 25% of the population. Not widely recognized are recent findings that major cities in the United States such are Washington DC have infection rates (approximately 3%) that are comparable to those seen in Africa.4 The mucosal surfaces of the human FRT are protected against pathogens by both the adaptive and the innate immune systems.

, 2008; Li et al , 2009, 2010; Cheung et al , 2011) USA300 strai

, 2008; Li et al., 2009, 2010; Cheung et al., 2011). USA300 strains exhibited enhanced production of dermonecrotic lesions in skin abscess models when compared to HA-MRSA clones (Li et al., 2009, 2010; Cheung et al., 2011), and USA300 was more lethal in a rat model of pneumonia compared with a USA400 isolate (Montgomery et al., 2008). Furthermore, USA300 strains were more lethal in septic infections compared with archaic and Iberian clones as well as ST239 clones (Brazilian clones) (Li et al., 2009). When compared with other CA-MRSA

clones, USA300 isolates generally exhibit increased virulence with the exception of ST80 and USA1000, which also possess enhanced virulence (Li et al., 2010). In contrast, nearly every clone of HA-MRSA tested was significantly less virulent than USA300 with the only exception being USA500 HA-MRSA (Li et al., 2009, 2010). This is selleck chemical of particular interest in that USA300 clones descended from USA500 via the acquisition of a prophage containing panton-valentine leukotoxin (PVL), a mobile arginine catabolic mobile element (ACME) and enterotoxins K and Q (see below) (Li et al., 2009). Thus, the source

of USA300 hypervirulence may have originally evolved in the HA-MRSA isolates belonging to USA500. However, for unknown reasons, despite exhibiting hypervirulence in animal infection models, USA500 clones remain relegated to healthcare settings and do not cause significant CA-MRSA disease. Whether CA-MRSA check details USA300 clones exhibit hypervirulence in human disease has been difficult to directly discern, however, recent population-based clinical data are beginning to corroborate conclusions drawn from laboratory animal model experiments. In humans, USA300 S. aureus primarily causes skin infections of which, it can account for up to 98% of all MRSA presenting as skin/soft tissue infections to US emergency rooms (Talan et al., 2011). In addition, USA300 can also cause more invasive disease such as bacteremia (Seybold et al., 2006), endocarditis (Haque

et al., 2007), and necrotizing fasciitis (Miller et al., 2005), a condition almost never associated with S. aureus. In particular, pulmonary RVX-208 infections caused by USA300 S. aureus can lead to aggressive and often fatal necrotizing pneumonia (Francis et al., 2005; Hageman et al., 2006; Klevens et al., 2007). The populations most at risk for contracting USA300 CA-MRSA are military personnel (Ellis et al., 2009), athletes (Center for Disease Control & Prevention, 2003b, c, 2009b), prisoners (Center for Disease Control & Prevention, 2001, 2003a; Maree et al., 2010), African Americans (Klevens et al., 2007; Kempker et al., 2010), daycare attendees (Buckingham et al., 2004; Kaplan et al., 2005), and men who have sex with men (Sztramko et al., 2007). Patients contracting CA-MRSA are, on average, younger than those with HA-MRSA and otherwise generally healthy (Nair et al., 2011; Whitby et al., 2011). Furthermore, CA-MRSA is often associated with worse clinical outcomes.

However, leaving aside issues of classification, the principal ai

However, leaving aside issues of classification, the principal aim of the present study was to attempt to define certain factors that may be driving, or determining, such phenotypic variations. Comparisons across subtypes of demographic and disease-specific information (age of onset, age of death, disease duration and brain weight, and presence of family history) failed to show significant differences between the pathological subgroups. The fact that one particular phenotype

was not associated with increasing age at onset, or duration of disease, compared with (any of) the others, lends support to the argument that the phenotypes are not a continuum of one another but instead exist as separate entities. Nevertheless, gender ratios did appear BAY 57-1293 nmr to differ between the group 1 and group 2 phenotype, in that women were over-represented (65%) in group 1 (with less extensive CAA) and were under-represented (43%) in group 2 (where CAA was on the whole more severe). One possible reason for this could be that group 1 cases were older (at death) than those in group 2, and as such would reflect relative longevities of male and women – it being well known that older subjects with AD are more likely to be female. However, as mentioned above there were no significant differences in the age structure of

the Groups. Another reason might relate to Fenbendazole the suggestion [32] that oestrogen has a neuroprotective effect and therefore might JQ1 cost afford some protection against more widespread CAA. However, another study [33] suggested that oestrogen fails to protect endothelial cells in the same way it protects neurones, glial cells, and smooth muscle cells, and this might therefore facilitate the progression of CAA. The present study has heuristic value in that it proposes that four separate patterns of Aβ deposition with regard to SP and CAA exist. Such a classification has not been done previously. For many years, the

diagnostic focus of AD has been given to the presence of NFT (Braak and Braak Staging) or neuritic plaques (SP) (CERAD), or both of these pathological entities [12]. Building more subtle CAA classifications into pathological diagnostic criteria may have value in assigning diagnostic accuracy, particularly in cases where SP density may be low, and may not meet pathological ‘thresholds’ under current criteria. However, beyond this, identification of AD patients with severe CAA may have value in predicting those cases at risk of cerebral haemorrhage [16], or defining patients suitable for immunotherapy. In present trials, it has been shown that while plaque Aβ load can be drastically reduced following immunotherapy, this seems to be at the expense of increased CAA [34].

However, eosinophils were not able to ingest non-opsonized yeasts

However, eosinophils were not able to ingest non-opsonized yeasts (eosinophils plus opsonized C. neoformans versus eosinophils plus non-opsonized C. neoformans, P < 0·05). C. neoformans phagocytosis was blocked by anti-FcγRII and anti-CD18 mAbs (Fig. 1b), suggesting that both receptors are involved in this phenomenon. Flow cytometric analysis of MHC class II surface expression demonstrated that the ingestion of opsonized yeasts

stimulated the increase of both the percentage and the mean fluorescence intensity (MFI) of MHC class II on eosinophils (Fig. 2a) (eosinophil plus opsonized C. neoformans versus eosinophil plus non-opsonized C. neoformans; P < 0·02). According to the observations for C. neoformans see more phagocytosis, MHC class II expression by eosinophils incubated with opsonized yeasts

was completely inhibited by FcγRII and CD18 (Fig. 2b). Furthermore, the increased expression of MHC class II on eosinophils treated with opsonized C. neoformans was significantly higher in cultures with GM-CSF than in its absence (60% versus 20%; P < 0·02) (Fig. 2b). We further analyzed this website the expression of MHC class I, CD80 and CD86 on the surface of eosinophils incubated with opsonized or non-opsonized C. neoformans, in the presence or absence of GM-CSF. Figure 3a demonstrates that in the presence of GM-CSF, opsonized C. neoformans drastically increased the percentage and MFI of MHC class I expression on eosinophils (eosinophil plus opsonized C. neoformans versus eosinophil plus non-opsonized C. neoformans; P < 0·01). Moreover, opsonized C. neoformans significantly up-regulated the surface expression of CD80 and CD86 on these cells (eosinophil plus opsonized C. neoformans versus eosinophil plus non-opsonized C. neoformans; P < 0·05). Similar results were observed in cultures performed in the absence of GM-CSF (Fig. 3b). Therefore, in contrast to that observed for MHC class II, opsonized

C. neoformans up-regulated the expression of MHC class I and costimulatory molecules, regardless of the presence of GM-CSF Methane monooxygenase in the medium. The levels of IFN-γ, TNF-α and IL-12p40 were also quantified in the supernatants of eosinophils obtained 24 hr after culture with opsonized or non-opsonized C. neoformans in the presence or absence of GM-CSF. Figure 4 shows the production of cytokines in cultures containing GM-CSF, revealing that in the presence of opsonized C. neoformans, eosinophils secreted significant amounts of IFN-γ, TNF-α and IL-12p40, compared to cells incubated in medium alone or with non-opsonized yeasts (P < 0·03). In contrast, Th2 cytokines (such as IL-4, IL-10 and IL-13) were not detected in these culture supernatants. Almost the same results were obtained in the absence of GM-CSF (data not shown). In order to evaluate the production of fungicidal molecules by GM-CSF-stimulated eosinophils incubated with opsonized C.

However, it is also notable that the inhibitory effect of DN T ce

However, it is also notable that the inhibitory effect of DN T cells in an antigen-specific setting is superior to non-specific inhibition. As a result of the vigorous HBeAg-specific proliferative

property of the DN T-cell population during in vitro culture, it is possible CP-690550 chemical structure that the DN cells are derived from HBeAg-specific CD4+, CD8+ or from an independent DN progenitor population. To determine the origin of the DN T-cell population, depletion of T-cell subpopulations from total spleen of HBeAg × 7/16-5 dbl-Tg mice was performed and the remaining cells were cultured in vitro with p120–140 for 4 days and compared with total spleen cells. As shown in Fig. 6, CD4+ and CD8+ T-cell depletion from total spleen did not affect the generation of the DN T-cell population in the culture (i.e. 40–48%). However, negative depletion of DN T cells before culture prevented the generation of the HBeAg-specific DN T-cell population in the 4-day culture (i.e. 8%). Hence, HBeAg-specific DN T cells exist in the periphery and are not generated from CD4+ or CD8+ T cells in the periphery. It is notable that without DN T cells, CD4+ T cells from HBeAg × 7/16-5 dbl-Tg mice demonstrate robust proliferation GW-572016 molecular weight and cytokine

production in vitro (data not shown). The frequency of Vβ11+ DN T cells in thymus and spleen ex vivo was measured. The Vβ11+ DN T cells in thymus of 7/16-5 × HBeAg dbl-Tg mice were present at a slightly higher frequency (5% higher) than in the thymus of 7/16-5 × HBcAg dbl-Tg mice. There was also a 20% higher frequency of Vβ11+ DN T cells in

the ex vivo spleens of 7/16-5 × HBeAg compared with the spleens of 7/16-5 single TCR-Tg mice (data not shown). However, in absolute terms DN Vβ11+ T cells are present in low frequency in situ in HBeAg × 7/16-5 dbl-Tg mice (i.e. 3–5%) and require antigen stimulation for expansion. It is not clear if DN T cells can proliferate and be activated in vivo. To determine the capability of DN T cells to expand in vivo, we injected HBeAg-derived p120–140 (250 μg) into 7/16-5 × HBeAg-dbl Tg mice. As shown in Fig. 7, at least a twofold increase in the DN T-cell frequency in vivo was observed 1 and 2 weeks after injection, whereas in control, 7/16-5 mice no evidence of expansion of DN T cells occurred. Although HBeAg-specific Treg cells appear quiescent in vivo HDAC inhibitor in HBeAg × 7/16-5 dbl-Tg mice, these cells are capable of being activated in vivo, in this case by exogenous antigen. The ability to activate DN T cells in vivo will permit further studies of their in vivo function. To further pursue the origins of DN T cells, we bred 7/16-5 × HBeAg dbl-Tg mice onto MHC class I KO, and TCR α-chain KO backgrounds. Because the 7/16-5 TCR is surprisingly expressed on CD8+ as well as CD4+ T cells in the thymus and the periphery, it was important to determine if expression of CD8 was necessary for selection of the DN T-cell population.

Along with expanding molecular

explanations for brain dis

Along with expanding molecular

explanations for brain diseases, parallel and independent hypotheses based on morphological observations are particularly useful and necessary for reasonable understanding of the brain and its dysfunction. For example, with classical methods such as silver impregnations, it is possible to differentiate underlying molecular pathologies (three-repeat tau/Campbell-Switzer vs. four-repeat tau/Gallyas silver impregnation) for improved histological diagnosis. Innovations with 3D reconstruction not only provide more realistic reproduction of the targets but also allow quantitative measurement on a 3D basis (3D volumetry). Contrary to the prevailing impression that pathological deposits are generally toxic to cells, quantification demonstrated possible countertoxic potentials of ubiquitin-positive Stem Cell Compound Library intranuclear inclusions in CAG-repeat disorders on a two-dimensional basis and of glial cytoplasmic inclusions of multiple system atrophy on 3D volumetry. Furthermore, 3D extension of neurites around target lesions is now traceable in relation to the relevant clinical consequences. This neurite neuropathology may pave the way for early specific

diagnosis of neurodegenerative disorders, as established through 123I-metaiodobenzylguanidine cardiac scintigraphy for Parkinson disease, aiming at therapeutic intervention before depletion of mother neurons is feasible. For appropriate translation of sequence PLX4032 biology into the frame of human neuropathology, it is necessary to expand further the morphological dimensions so that comprehensive understanding of these disorders leads to specific diagnosis and treatment as early as possible. “
“Alzheimer’s disease (AD) is a progressive, neurodegenerative

disease, characterized by excessive accumulation of amyloid-beta (Aβ) and activation of microglia cells and astrocytes. In this research, we evaluated whether gastrodin, an active component isolated from the rhizome of Gastrodia elata, has neuroprotective effects in a mouse model of AD, Tg2576 mice. Treatment of gastrodin (60 mg/kg for 15 days) significantly improved memory impairments in the Morris water maze test and probe test. Proton pump inhibitor Moreover, immunohistochemical and ELISA results indicated that gastrodin significantly attenuated Aβ deposition and glial activation in brains of these transgenic mice. These findings suggested that gastrodin exerted neuroprotective activity via anti-inflammatory and anti-amyloidogenic effects and that gastrodin may be a potential option for AD therapy. “
“The relationship between DJ-1 and β-catenin, and its impact on the prognosis for glioma patients has not been fully understood. This study determined the effect of DJ-1 on β-catenin and the prognostic significance of this interaction in glioma patients.

It is possible that granzymes A and B show discordant expression

It is possible that granzymes A and B show discordant expression in T regulatory cells [44]. The relative expression of perforin 1, the second element of perforin/granzyme

cytotoxic pathway, was not altered when compared to control group. Suppressors of cytokine signalling Cilomilast manufacturer (SOCS) are involved in the balance of pro- and anti-inflammatory cytokine response. SOCS2 belongs to the FoxP3-dependent, Treg-specific molecules [45]. Our observations showed reduced mRNA expression of SOCS-2 and no change in SOCS-3 in Tregs separated from children with MS when compared to healthy subjects. There is some evidence that transcription factor FoxP3 can negatively regulate levels of SOCS-3 [46]. Interestingly, in contrast to our results, SOCS-2 expression was up-regulated in T cells separated

from peripheral blood of patients with rheumatoid arthritis and down-regulated in PBMC during anti-TNF-alpha treatment [47, 48]. The relation between master regulator of Tregs, FoxP3 and other transcription factors and cytokines at molecular level is complex and poorly understood. Some recent data demonstrated that STAT-1-activating cytokines IL-27 and IFN-γ influenced the FoxP3 expression induced by TGF-β [49]. The clinical significance of this finding is yet to be elucidated. Recently, it has been shown that IL-27 through the transcription factor c-Maf, IL-21 production and ICOS stimulation as an autocrine loop induce IL-10-producing T regulatory type 1 cells [50]. This co-operation seems Selleck Pexidartinib to explain selleck products some of the complex relations between pro-/anti-inflammatory cytokines and transcription factors. Laboratory conditions similar to ours were used by Torcia et al. [21] in an experiment conducted in Fulani, an ethnic group with low susceptibility to malaria. The gene expression

analysis of Tregs (in this case CD4+CD25+ cells) showed very interesting results, some of which are in accordance to our observations. The expression of TGF-β1, CTLA-4 and SOCS2 in Tregs was lower in Fulani when compared to Mossi and European donors, IL-10 expression was not altered. However, these authors noted also lower FoxP3 mRNA levels in Fulani in comparison with other assessed populations. This suggests an early block in the Treg differentiation process driven by TGF-β. Furthermore, Fulani had lower TGF-β1 and no changes in IL-10 serum levels. This functional deficit of Tregs suggests the higher immune reactivity in Fulani, resulting in higher resistance to Plasmodium falciparum infection. The pathophysiological association between adipose tissue-derived cytokines and the promotion of atherosclerosis is well established but the role of T regulatory cells, which should hamper the self-destructive inflammation, remains to be determined (discussed in [51]). An important outcome of our study is that T regulatory cells in children with MS have some disturbances in gene expression which can contribute to immune imbalance in this group of patients.