[23, 26] Experimental design methods can help reduce this number

[23, 26] Experimental design methods can help reduce this number by creating smaller fractional factorial designs, e.g. orthogonal designs. These designs enable the estimation of main effects, i.e. the effect of each

Sirolimus ic50 independent variable on the dependent variable, as well as possible interactions, i.e. when preferences for one attribute depend on the level of another.[30] Orthogonal designs can be obtained from design catalogues, statistical software programs or websites and have the properties of orthogonality (where attributes are statistically independent of each other) and level balance (where levels of attributes appear an equal number of times).[30] Following the development of the experimental design, choice sets need to be constructed, especially learn more when two or more alternatives are present. The development of

the experimental design is followed by the designing of the DCE questionnaire, pilot testing and data collection. Following administration of DCE questionnaires and data collection, the next step is discrete choice modelling within a RU framework to analyse the responses obtained from the DCEs. The included articles were reviewed and individual details of the DCE methodological steps utilised (including the number of attributes, type of attributes, design type, design plan, design source, method of constructing choice sets, mode of administration of questionnaire, estimation method used and validity tests) were identified

and reported. The included studies were then evaluated for their application within the field of pharmacy with respect to the focus of preference (patient, provider, both), focus of study, attributes used, key findings and conclusions. Each paper was also assessed using a ‘checklist of factors to be considered when conducting a DCE’ adapted from Lancsar and Louviere.[25] Please refer IKBKE to Figure 2 for more details. The search generated 243 possible articles. After elimination of duplicates and screening as per inclusion/exclusion criteria (Figure 3),[34] 12 studies were retrieved which were included in the review.[35-46] Table 1 summarises the background of DCE studies reviewed. The majority of the pharmacy-related DCE studies were conducted in the UK and almost all the studies were published in the last decade, of which 10 were published after 2005. Studies elicited patient preferences or pharmacist preferences or preferences of both for various pharmacy-related products and services. There were no studies that incorporated DCEs into a decision-making framework to inform pharmacy policy. The reviewed studies were examined for the different DCE stages conducted and the results have been reported in Table 2. Table 2 shows the current trends with respect to attribute and level selection within the pharmacy context.

Intrathecal administration of the α2-adrenergic receptor antagoni

Intrathecal administration of the α2-adrenergic receptor antagonist yohimbine or the serotonergic receptor antagonist methysergide significantly

attenuated the LRN electrical stimulation-induced inhibition of the electromyogram responses. However, intrathecal application of the opioid receptor antagonist naloxone had no effect on the LRN electrical stimulation-induced inhibition. These results Selleck AZD9291 suggest that the LRN–DLF–spinal cord pathway is involved in descending inhibition of the CSR, and spinal α2-adrenergic and serotonergic receptors participate in this descending inhibition. “
“Changes in synaptic efficacy and morphology are considered as the downstream mechanisms of consolidation of memories and other adaptive behaviors. In the last decade, neurotrophin-3 Selleck KU57788 (NT-3) has emerged as one potent mediator of synaptic plasticity. In the adult brain, expression of NT-3 is largely confined to the hippocampal dentate gyrus (DG). Our previous studies show that application of high-frequency stimulation (HFS) sufficient to elicit long-term potentiation (LTP) at the DG-CA3

pathway as well as acute intrahippocampal microinfusion of brain-derived neurotrophin factor produce mossy fiber (MF) structural reorganization. Here, we show that intrahippocampal microinfusion of NT-3 induces a long-lasting potentiation of synaptic efficacy in the DG-CA3 projection accompanied by an MF structural reorganization of adult rats in vivo. It is considered that the capacity of synapses to express plastic changes is itself subject Niclosamide to variation depending on previous experience; taking into consideration the effects of NT-3 on MF synaptic plasticity, we thus used intrahippocampal microinfusion of NT-3

to analyse its effects on functional and structural plasticity induced by subsequent MF-HFS sufficient to induce LTP in adult rats, in vivo. Our results show that NT-3 modifies the ability of the MF pathway to present subsequent LTP by HFS, and modifies the structural reorganization pattern. The modifications in synaptic efficacy and morphology elicited by NT-3 at the MF-CA3 pathway were blocked by the presence of a Trk receptor inhibitor (K252a). These findings support the idea that NT-3 actions modify subsequent synaptic plasticity, a homeostatic mechanism thought to be essential for maintaining synapses in the adult mammalian brain. “
“Aerobic exercise may represent a useful intervention for drug abuse in predisposed individuals. Exercise increases plasticity in the brain that could be used to reverse learned drug associations. Previous studies have reported that exposing mice to a complex environment including running wheels after drug conditioning abolishes conditioned place preference (CPP) for cocaine, whereas running can enhance CPP when administered before conditioning.

Dissatisfaction was correspondingly

Dissatisfaction was correspondingly Selleckchem Enzalutamide low, for example, Crockett et al.[27] reported that only 3% of participants (n = 6/197) were dissatisfied with the intervention they received. Other positive perceptions reported in these 18 studies included: feeling encouraged to discuss the disease with their doctors;[59] likelihood of taking part in future pharmacy-based screening;[23] and likelihood of recommending the service to others.[63] Four studies (8%) reported physicians’ attitudes and perceptions to pharmacy-based

screening interventions. In three osteoporosis screening interventions, physicians found information on pharmacy screening results useful.[22, 60, 64] However, in one small study about a pharmacy-led intervention to detect hypertension[54] selleck chemical more than half of physicians interviewed (n = 8/14) expressed concerns that screening would lead to duplication of their own work, that it might cause anxiety in those screened, and that there was, in any case, lack of clarity about the usefulness of screening for hypertension.

Two studies assessed pharmacists’ views about providing screening. In Hersberger et al.,[32] 53% of pharmacist responders (n = 196) wanted to continue to provide screening for sleep disorders, although the time required for screening and counselling was considered high. In one small study about pharmacy screening for blood glucose levels, King et al.[69] surveyed 30 pharmacists. One respondent thought the training was insufficient and 11 thought that screening charges were too high. This review has summarised the available evidence on feasibility and acceptability of screening for major diseases in community pharmacies. It suggests

that, while such interventions appear to be feasible in the community pharmacy setting and they have been largely well received, more research of higher quality is needed to establish their effectiveness and cost-effectiveness compared to screening in other settings. This is the first published systematic review to synthesise evidence on the feasibility of community pharmacy-based screening interventions for major diseases. No previous systematic review that matched the inclusion criteria of this review was identified. This review was not limited by the diseases being screened for and, therefore, included Metalloexopeptidase any community pharmacy-based screening intervention for any major disease. Five electronic databases were searched. Hand searching of reference lists of included studies identified no further relevant studies suggesting that the search strategy was comprehensive. To reduce the risk of selection bias, screening of abstracts was performed independently by two reviewers. Double-data extraction of a sample of included articles was also undertaken for quality assurance. Ideally, if resources had allowed, all included articles would have been double-data extracted.

The densities in three liver areas (right posterior, right anteri

The densities in three liver areas (right posterior, right anterior and left lobe) were measured and the mean utilized. The splenic density served as an internal control, as the spleen EX 527 supplier typically contains no fat. Fatty liver disease was defined as a liver-to-spleen ratio <1.0 [27]. Images were processed on an impax 6.3 workstation (Agfa-Gevaert Group, Morstel, Belgium). The total estimated radiation dose for all CT images was 3 mSv. Clinical data were obtained from participant questionnaires, including demographics (age, self-reported ethnicity and gender), history of tobacco use and alcohol

use, family history of cardiovascular disease, and recent symptoms of chest pain or dyspnoea. Research co-ordinators collected information regarding current medical conditions,

medications and HIV history from the medical records, including the use of antiretroviral medications. Highly active antiretroviral therapy (HAART) was defined as three or more drugs from at least two different classes, following guidelines [28]. Cumulative exposure (in months) to each drug class, including nucleoside reverse transcriptase inhibitors (NRTIs), nonnucleoside reverse transcriptase inhibitors (NNRTIs) and protease inhibitors (PIs), was recorded. In addition, the use of specific NRTIs (abacavir and tenofovir), NNRTIs (efavirenz) and PIs (ritonavir and atazanavir) were examined based on sufficient numbers of current users. Fenbendazole Research coordinators also determined each participant’s 10-year risk for coronary heart disease using the Framingham risk find more score (FRS) [29]. Each participant underwent height and weight measurements on a calibrated scale, and body mass index (BMI) was calculated. Additional anthropometrical measurements included circumference measurements

(waist, hips and thigh) as well as measurement of skinfold thickness at four locations (biceps, triceps, subscapular and suprailiac) on the participant’s right side using standardized calipers (Lange skinfold caliper; Beta Technology, Santa Cruz, CA, USA) [30,31]. All caliper measurements were performed in triplicate and the means calculated. The percent body fat was calculated from the caliper measurements as previously described [30,32]. The participant’s physician also performed a visual assessment of fat distribution in the cheeks, neck, breasts, abdomen, buttocks and legs, and graded the amount of fat in these areas from –3 to 3 (0 being taken as normal, negative numbers as lipoatrophy, and positive numbers as lipohypertrophy) [33]. Each participant gave a fasting (for ≥10 h) blood sample on the day of the CT scan. Tests included a lipid panel for total cholesterol, low-density lipoprotein (LDL) cholesterol, high-density lipoprotein (HDL) cholesterol and triglycerides (standardized enzymatic colorimetric methods); glucose level; highly sensitive C-reactive protein concentration (lower limit of detection <0.

1; 2 df; P < 005), micturition (χ2 = 303; 2 df; P < 00001)

1; 2 d.f.; P < 0.05), micturition (χ2 = 30.3; 2 d.f.; P < 0.0001) and defecation Selleckchem Tofacitinib (χ2 = 6.0; 2 d.f.; P < 0.04). Post hoc pairwise

comparisons showed that thresholds of micturition of ES rats were significantly higher than those of both the FS (ΔI50 = 54.5%; χ2 = 15.3; 1 d.f.; P < 0.0001) and IS (ΔI50 = 68.0%; χ2 = 29.0; 1 d.f.; P < 0.0001) groups (Fig. 4). Trotting thresholds were also slightly though significantly increased in IS rats relative to the ES group (ΔI50 = 11.0%; χ2 = 6.9; 1 d.f.; P < 0.01). Threshold differences of remaining responses did not reach Bonferroni's 5% criterion. Threshold differences were further increased 1 week after the end of one-way escape training. Differences were particularly conspicuous for immobility (χ2 = 9.8; 2 d.f.; P < 0.001), trotting (χ2 = 23.2; 2 d.f.; P < 0.0001) and galloping (χ2 = 24.4; 2 d.f.; P < 0.0001). In particular, thresholds of immobility of IS rats were significantly higher than those of ES (ΔI50 = 22.1%; χ2 = 9.8; 1 d.f.; P < 0.001) and FS (ΔI50 = 22.1%; χ2 = 4.9; 1 d.f.; P < 0.02) groups.

Similarly, thresholds of trotting of IS rats were markedly increased relative to both the ES (ΔI50 = 27.9%; χ2 = 21.2; 1 d.f.; P < 0.0001) and FS (ΔI50 = 27.9%; χ2 = 12.3; 1 d.f.; P < 0.0005) groups. Although the IS thresholds of galloping were also significantly higher than those of ES group (ΔI50 = 28.4%; χ2 = 26.7; 1 d.f.; P < 0.0001), they were only marginally higher of than those of the FS group (ΔI50 = 15.3%; see more χ2 = 3.3; 1 d.f.; P < 0.06). Galloping was the response most affected in FS rats. In fact, FS galloping thresholds were slightly though significantly increased compared to ES group (ΔI50 = 11.3%; χ2 = 7.8; 1 d.f.; P < 0.005). In contrast, group thresholds did not differ with respect to jumping, micturition

and defecation responses (Fig. 5). Threshold changes across stimulation sessions are presented as the percentage of the baseline value prior to one-way escape training (Fig. 6). The overall comparison showed that between-session thresholds were statistically significantly different (χ2 > 5.99, 2 d.f., P < 0.05) for all defensive responses except defecation (in all groups), micturition (in FS group) and jumping (in ES group). Most notably, 2 and 7 days after the end of one-way escape training, IS rats showed robust increases in the thresholds of immobility (35 and 39%), exophthalmos (41 and 38%), trotting (31 and 54%) and galloping (34 and 57%), respectively. In contrast, rats exposed to ES presented only small or moderate threshold increases for immobility (23 and 16%), exophthalmos (31 and 21%), trotting (20 and 23%) and galloping (17 and 15%) in respective stimulation sessions. Although the thresholds of jumping were also significantly increased in both ES (14 and 17%) and IS (22 and 30%), there were no significant differences amongst groups.

, 2011) The mechanisms underlying sensorimotor recovery after he

, 2011). The mechanisms underlying sensorimotor recovery after hemiparetic stroke have been the focus

of a large number of functional neuroimaging and electrophysiological studies in recent years (Seitz & Donnan, 2010; Hermann & Chopp, 2012). There is evidence that repeated sessions of selleck inhibitor physical training induce a reorganisation of neo-cortical areas related to motor preparation, as well as motor execution in the healthy brain (Carel et al., 2000). Similar findings have been described in hemiparetic patients, but, most importantly, bilateral recruitment of motor areas was initially reported even during unilateral arm movements (Cramer, 2008; Grefkes & Fink, 2011). Importantly, the cerebral activation patterns

become increasingly like those of healthy brains as functional recovery progresses (Carey et al., 2006). From electrophysiological studies using paired transcranial magnetic stimulation, we know that perilesional and contralesional cerebral tissue become more excitable post-stroke, opening an avenue for postlesional reorganisation (Butefisch et al., 2003, 2008; Wittenberg et al., 2007; Floel & Cohen, 2010). This facilatory effect was also shown to occur in the undamaged cerebral hemisphere in the subacute phase of stroke, and diminished as recovery progressed (Butefisch Pexidartinib nmr et al., 2003, 2008). In addition to physical training, tuclazepam cognitive-imagination-based training has also been shown to be a potential means to enhance the speed, kinematics and quality of movements in neurological patients (Müller et al., 2007; Page et al., 2009). This goes back to sports physiology, where such an effect is the objective in the training of healthy subjects (Fontani et al., 2007; Wei & Luo, 2010). On the basis of evidence from neuroimaging studies in motor imagery (Decety et al., 1997; Maxwell et al., 2000; Liakakis et al., 2011), it is likely that this effect is mediated by the mirror neuron system, which has been localised to the ventral premotor cortex and inferior frontal and parietal cortex (Rizzolatti & Craighero,

2004; Sharma et al., 2009; Garrison et al., 2010). Our data suggest that visuomotor imagery is one promising means of engaging brain areas related to the human mirror neuron system, particularly in the RGS environment. There are limitations associated with the current study that need to be taken into consideration. First, owing to the RGS-specific setting, it was necessary to assess the different task conditions in separate scanning sessions, limiting direct comparisons of conditions on a voxel-by-voxel basis. Instead, task comparisons were based on parameter estimates extracted in predefined regions of interest. We also had only one button press every 24 s per condition, which might have been a statistical reason why no activity was found in the sensorimotor cortex.

Following formation

Following formation find more of the Fe(II)–CO complex, a new species is formed over 1–2 h, absorbing at about 420 nm, the so-called P420 form, which arises by protonation of the proximal cysteine thiolate ligand of the heme iron (Perera et al., 2003; Dunford et al., 2007). CO-binding assays were also performed with each P450 and the primary electron transfer proteins ecoFdR and one of spinFd, balFd-V, balFd-VII or ecoFld. These assays monitor the ability of each donor to transfer one electron to the P450 heme Fe(III), followed by binding of CO to the Fe(II) form. Although the proteins tested have diverse species origins (spinach, E. coli and A. balhimycina) and cofactor types ([2Fe–2S], FMN, [3Fe–4S]), all four were able to reduce

the Fe(III) heme of vanOxyB, albeit to different extents. The plant spinFd rapidly (<6 min) led to up to 75% conversion (relative to dithionite) to the vanOxyB P450-form, whereas with ecoFld, a maximum of 40% conversion was attained only after 40 min. A rapid formation of the P450 from vanOxyB (<10 min) was also observed using either Fd from A. balhimycina, with 60% conversion with balFd-V and 45% with balFd-VII. The OxyB enzymes from the balhimycin and vancomycin pathways share 88% sequence identity. Nevertheless, some differences were observed between these enzymes in their abilities to accept electrons from the four primary redox partners. Thus, both balOxyB and vanOxyB are rapidly (<5–6 min)

and efficiently (80%) converted into the P450 form by spinFd, but the emergence of the P450 form with balFd-V and balFd-VII was slower and reached at best 40% (balFd-V) and 20% (balFd-VII) of Evodiamine the response seen with sodium

Target Selective Inhibitor Library manufacturer dithionite. With balOxyB, essentially no reduction was observed using ecoFld. These CO-binding assays do not indicate whether or not a second electron transfer can occur to the heme as required in the full P450 catalytic cycle. For example, spinFd can donate the first electron to camphor-bound P450cam, but allows no hydroxylation of substrate (Lipscomb et al., 1976). To address this point, assays were also carried out with peptide substrates of OxyB. The assay for the catalytic activity of OxyB is that described in an earlier work (Zerbe et al., 2004; Woithe et al., 2007, 2008; Geib et al., 2008). The substrates used are the model hexa- and heptapeptides 1 and 2 (Fig. 1), which are closely related to the expected intermediates occurring during glycopeptide biosynthesis. Each peptide is covalently linked as a C-terminal thioester to an isolated recombinant PCP domain from the seventh module of the vancomycin NRPS. For ease of synthesis (Li & Robinson, 2005), these model peptides contain tyrosine at positions-2 and -6, rather than β-hydroxy-meta-chlorotyrosine (see Fig. 1). Standard conditions were used for all assays, so that a comparison of turnover efficiencies could be obtained from the extent of linear peptide conversion into the corresponding monocyclic product.

These observations indicate that ascent to altitude, unassociated

These observations indicate that ascent to altitude, unassociated with extreme conditions, trauma or symptoms of oxygen deprivation, needs to be regarded as a benign cause of splinter hemorrhages. The author states he has no conflicts of interest to declare. “
“The aim of the study was to explore levels of doctor–patient concordance during the making of decisions

regarding HIV treatment switching and stopping in relation to patient health-related outcomes. Adult patients attending five HIV clinics in the United Kingdom were requested to complete the study questionnaire, which included a Concordance Scale, and measures of symptoms selleck compound [Memorial Symptom Assessment Short Form (MSAS) index], quality

of life (EuroQol), satisfaction, adherence and sexual risk behaviour. Clinical health measures (HIV viral load and CD4 cell count) were also obtained. A total of 779 patients completed the questionnaire, giving a response rate of 86%; of these 779 patients, 430 had switched or stopped their HIV treatment and were thus eligible for inclusion. Of these patients, 217 (50.5%) fully completed the Concordance Scale. Concordance levels were high (88% scored between 30 and 40 on the scale; score range 10–40). Higher concordance was related to several patient outcomes, including: better quality of life http://www.selleckchem.com/products/MS-275.html (P=0.003), less severe and burdensome symptom experience (lower MSAS-physical score, P=0.001; lower MSAS-psychological score, P=0.008; lower Lepirudin MSAS-global distress index score, P=0.011; fewer symptoms reported, P=0.007), higher CD4 cell count (at baseline, P=0.019, and 6–12 months later, P=0.043) and greater adherence (P=0.029). High

levels of doctor–patient concordance in HIV treatment decision-making are associated with greater adherence and better physical and psychological functioning. More research is needed to establish a causal relationship between concordance and these outcomes. Treatment of HIV infection with highly active antiretroviral therapy (HAART) can deliver dramatic reductions in morbidity and mortality [1–3]. However, if benefit is to be maximized and the development of resistant viral strains avoided, high levels of adherence are required [1,4–6]. The British HIV Association/British Association for Sexual Health and HIV guidelines on provision of adherence support stress the need to offer an individualized approach sensitive to patients’ needs [7,8]. Adherence is likely to be enhanced if the medical regimen is understood by patients and fits their lifestyle and beliefs, and if their concerns have been addressed [9,10]. Fundamental to this process is the physician–patient communication dynamic that occurs within a clinical encounter which can be theorized using the ‘concordance’ model, advocating shared decision-making between doctor and patient.

These observations indicate that ascent to altitude, unassociated

These observations indicate that ascent to altitude, unassociated with extreme conditions, trauma or symptoms of oxygen deprivation, needs to be regarded as a benign cause of splinter hemorrhages. The author states he has no conflicts of interest to declare. “
“The aim of the study was to explore levels of doctor–patient concordance during the making of decisions

regarding HIV treatment switching and stopping in relation to patient health-related outcomes. Adult patients attending five HIV clinics in the United Kingdom were requested to complete the study questionnaire, which included a Concordance Scale, and measures of symptoms PI3K inhibitor [Memorial Symptom Assessment Short Form (MSAS) index], quality

of life (EuroQol), satisfaction, adherence and sexual risk behaviour. Clinical health measures (HIV viral load and CD4 cell count) were also obtained. A total of 779 patients completed the questionnaire, giving a response rate of 86%; of these 779 patients, 430 had switched or stopped their HIV treatment and were thus eligible for inclusion. Of these patients, 217 (50.5%) fully completed the Concordance Scale. Concordance levels were high (88% scored between 30 and 40 on the scale; score range 10–40). Higher concordance was related to several patient outcomes, including: better quality of life this website (P=0.003), less severe and burdensome symptom experience (lower MSAS-physical score, P=0.001; lower MSAS-psychological score, P=0.008; lower Farnesyltransferase MSAS-global distress index score, P=0.011; fewer symptoms reported, P=0.007), higher CD4 cell count (at baseline, P=0.019, and 6–12 months later, P=0.043) and greater adherence (P=0.029). High

levels of doctor–patient concordance in HIV treatment decision-making are associated with greater adherence and better physical and psychological functioning. More research is needed to establish a causal relationship between concordance and these outcomes. Treatment of HIV infection with highly active antiretroviral therapy (HAART) can deliver dramatic reductions in morbidity and mortality [1–3]. However, if benefit is to be maximized and the development of resistant viral strains avoided, high levels of adherence are required [1,4–6]. The British HIV Association/British Association for Sexual Health and HIV guidelines on provision of adherence support stress the need to offer an individualized approach sensitive to patients’ needs [7,8]. Adherence is likely to be enhanced if the medical regimen is understood by patients and fits their lifestyle and beliefs, and if their concerns have been addressed [9,10]. Fundamental to this process is the physician–patient communication dynamic that occurs within a clinical encounter which can be theorized using the ‘concordance’ model, advocating shared decision-making between doctor and patient.

Here, we demonstrated that recombinant protein, designated C176,

Here, we demonstrated that recombinant protein, designated C176, derived from Scl1.41 of the GAS M41-type strain also binds both plasma

and purified high-density lipoprotein (HDL). Next, we determined that the intact EX 527 manufacturer noncollagenous region of C176 was necessary and sufficient for HDL binding. C176–HDL interaction could be eliminated by the presence of low concentrations of the nonionic detergent, Tween 20, indicating the hydrophobic nature of this interaction. We finally showed that whole GAS cells expressing native Scl1.41 protein absorbed HDL from human plasma in the absence of Tween 20, but M6-type GAS cells did not. Altogether, our results add further evidence to the importance of GAS–lipoprotein binding. As an important species of Gram-positive bacterial pathogens, Streptococcus pyogenes [group A Streptococcus (GAS)] is responsible for a number of suppurative infections including pharyngitis, impetigo/pyoderma, erysipelas, cellulitis, necrotizing fasciitis, toxic streptococcal syndrome, and scarlet fever, as well as nonsuppurative

sequelae including acute rheumatic fever, PLX4032 ic50 and acute glomerulonephritis (Cunningham, 2000). Major virulence factors of GAS include lipoteichoic acid (LTA), the surface-exposed M protein, hyaluronic acid capsule, as well as several other cell surface proteins that include the streptococcal collagen-like surface protein 1 (Scl1) (Lukomski et al., 2000; Rasmussen et al., 2000). Based on the surface M protein, GAS is serologically separated into over 100 old M protein serotypes (Beall et al., 1996). Because two cell-surface streptococcal collagen-like proteins, Scl1 and Scl2 (also known as SclA and SclB), were identified in 2000 (Lukomski et al., 2000; Rasmussen et al., 2000), their structure and functions have been studied extensively (Lukomski et al., 2000, 2001;

Rasmussen et al., 2000; Rasmussen & Björck, 2001; Whatmore, 2001; Humtsoe et al., 2005; Han et al., 2006a, b; Påhlman et al., 2007; Caswell et al., 2008). Mature Scl1 proteins are demonstrated to contain the N-terminal noncollagenous variable (V) regions, the adjacent collagen-like (CL) regions, linker (L) regions, and cell-wall/membrane (WM) regions. Scl2 proteins are similar to Scl1 in structure, but they lack the linker regions (Lukomski et al., 2000). Both Scl1 and Scl2 share a common ‘lollipop-like’ structure with stalks made of the CL regions and globular heads made of the V regions. CL regions are of disparate lengths and vary in the Gly–Xaa–Yaa (GXY) repeat content (Han et al., 2006b). It has been reported that Scl1 proteins from some GAS serotypes can interact with apolipoprotein B-containing lipoproteins, mainly low-density lipoprotein (LDL) in human plasma (Han et al., 2006a).