There are also inadequate studies in patients receiving all forms

There are also inadequate studies in patients receiving all forms of renal replacement therapy and in the pediatric population. The

conference generated 37 recommendations for clinical practice, 32 recommendations for future research directions, and 24 recommendations for regulatory agencies (US Food and Drug Administration and European Medicines Agency) to IWP-2 enhance the quality of pharmacokinetic and pharmacodynamic information available to clinicians. The KDIGO Conference highlighted the gaps and focused on crafting paths to the future that will stimulate research and improve the global outcomes of patients with acute and chronic kidney disease. Kidney International (2011) 80, 1122-1137; doi:10.1038/ki.2011.322; published online 14

September 2011″
“BACKGROUND: Subdural hematoma (SDH) in patients with cancer is poorly described, and its frequency and causes may have changed with recent oncologic advances.

OBJECTIVE: We conducted an analysis of the clinical and radiographic features, etiologies, treatments, and outcomes of patients with SDHs and cancer.

METHODS: We retrospectively identified patients at Memorial Sloan-Kettering Cancer Center with a diagnosis of SDH and cancer from January 2000 to December 2007. We analyzed clinical and radiographic data; selleck products multivariate Cox regression was performed to associate tumor type and etiology with survival outcome.

RESULTS: There were 90 patients; 66 had acute or subacute SDHs, 9 chronic SDHs, 11 subdural hygromas, and 4 SDHs of unclear chronicity. Gliomas (16%), leukemias (14%), and prostate cancers (14%) were the most frequent malignancies. The most common single etiologies were coagulopathy (27%) and trauma (11%). SDHs with multiple etiologies occurred in 25 patients (28%) with the combination of coagulopathy and trauma occurring in 15. Sixty patients (67%) were either completely or partially independent after SDH, and 1-year survival was 43% (95% confidence interval: 32.1-52.9).

Overall survival correlated with etiology (P < .0001) and whether the malignancy was in remission (P = .005). Trauma was associated with the best overall survival compared with coagulopathy.

CONCLUSION: Dichloromethane dehalogenase Leukemia and prostate cancer are the most common systemic cancers associated with SDH, and gliomas may predispose to SDH more often than previously recognized. Coagulopathy is common and associated with the worst outcome, but many patients experience good functional outcome and survival.”
“Mesenchymal stem cells (MSCs) are currently being tested in clinical trials for the treatment of various diseases owing to the ease of generating and expanding these cells, the ability to differentiate them into various specialized mesenchymal tissue types and their immunosuppressive properties. However, their immunomodulatory potential remains controversial.

The cumulative mutation of lysine residues 79, 80, and 130 to arg

The cumulative mutation of lysine residues 79, 80, and 130 to arginines led to an altered pattern

of M protein ubiquitination and impaired viruslike Selleck ABT-737 particle (VLP) production. However, the cumulative mutation of lysine residues 79, 80, 130, and 247 to arginines restored M protein ubiquitination and VLP production, suggesting that ubiquitin is attached to alternative sites on the M protein when the primary ones have been removed. Additional lysine residues were targeted for mutagenesis based on the UbiPred algorithm. An M protein with seven lysine residues changed to arginines exhibited altered ubiquitination and poor VLP production. A recombinant virus encoding an M protein with seven lysines mutated was generated, and this learn more virus exhibited a 6-fold-reduced maximum titer, with the defect being attributed mainly to the budding of noninfectious particles. The recombinant virus was assembly deficient, as judged by the redistribution of viral M and hemagglutinin-neuraminidase proteins in infected cells. Similar assembly defects were observed for the wild-type (wt) virus after treatment with a proteasome inhibitor. Collectively,

these findings suggest that the monoubiquitination of the PIV5 M protein is important for proper virus assembly and for the budding of infectious particles.”
“it is of fundamental importance to understand the physiological differences leading to salt resistance and to get access to the molecular mechanisms underlying this physiological response. The aim of this work was to investigate the effects of short-term salt exposure on the proteome of maize

chloroplasts in the initial phase of salt stress (up to 4h). It could be shown that sodium ions accumulate quickly the and excessively in chloroplasts in the initial phase of moderate salt stress. A change in the chloroplast protein pattern was observed without a change in water potential of the leaves. 2-DE revealed that 12 salt-responsive chloroplast proteins increased while eight chloroplast proteins decreased. Some of the maize chloroplast proteins such as CF1 epsilon and a Ca(2+)-sensing receptor show a rather transient response for the first 4 h of salt exposure. The enhanced abundance of the ferredoxin NADPH reductase, the 23 kDa polypeptide of the photosystem 11, and the FtsH-like protein might reflect mechanism to attenuate the detrimental effects of Na(+) on the photosynthetic machinery. The observed transient increase and subsequent decrease of selected proteins may exhibit a counterbalancing effect of target proteins in this context. Intriguingly, several subunits of the CF1-CF0 complex are unequally affected, whereas others do not respond at all.”
“BACKGROUND: Acute neurological deficits after subarachnoid hemorrhage (SAH) correlate with outcome, and a phase of acute hypoperfusion was characterized recently.

SynCAM-dependent pathways may therefore represent novel points of

SynCAM-dependent pathways may therefore represent novel points of therapeutic intervention after exposure to drugs of abuse. Neuropsychopharmacology (2013) 38, 628-638; doi:10.1038/npp.2012.226; published online 21 November 2012″
“A brief historical presentation of the hypothesis on receptor-receptor interactions as an important integrative BAY 73-4506 mw mechanism taking place at plasma membrane level is given. Some concepts derived from this integrative mechanism especially the possible assemblage of receptors in receptor mosaics (high-order

receptor oligomers) and their relevance for the molecular networks associated with the plasma membrane are discussed. In particular, the Rodbell’s disaggregation theory for G-proteins is revisited in the frame of receptor mosaic model.

The paper also presents some new indirect evidence on A2A boolean AND D2 receptor interactions obtained by means of Atomic Force Microscopy on immunogold preparations of A2A and D2 receptors in CHO cells. These findings support previous data obtained by means of computer-assisted confocal laser microscopy.

The allosteric control of G-protein coupled receptors is examined in the light of the new views on allosterism and recent

data on a homocysteine analogue capable of modulating D2 receptors are shown. Finally, the hypothesis is introduced on the existence of check-points learn more along the amino acid pathways connecting allosteric and orthosteric binding sites of a receptor and their potential importance for drug development. (C) 2009 Elsevier Ltd. All rights reserved.”
“T cell dysfunction in the presence of ongoing antigen exposure is a cardinal feature of chronic viral infections with persistent high viremia, including HIV-1. Although interleukin-10 (IL-10) has been implicated Prostatic acid phosphatase as an important mediator of this T cell dysfunction,

the regulation of IL-10 production in chronic HIV-1 infection remains poorly understood. We demonstrated that IL-10 is elevated in the plasma of individuals with chronic HIV-1 infection and that blockade of IL-10 signaling results in a restoration of HIV-1-specific CD4 T cell proliferation, gamma interferon (IFN-gamma) secretion, and, to a lesser extent, IL-2 production. Whereas IL-10 blockade leads to restoration of IFN-gamma secretion by HIV-1-specific CD4 T cells in all categories of subjects investigated, significant enhancement of IL-2 production and improved proliferation of CD4 T helper cells are restricted to viremic individuals. In peripheral blood mononuclear cells (PBMCs), this IL-10 is produced primarily by CD14(+) monocytes, but its production is tightly controlled by regulatory T cells (Tregs), which produce little IL-10 directly.

Hazard ratios were appreciably reduced after further adjustment f

Hazard ratios were appreciably reduced after further adjustment for glycemia measures, but not after adjustment for systolic blood pressure, lipid levels, inflammation or renal markers. Fasting glucose levels exceeding 100 mg per deciliter (5.6 mmol per liter), but not levels of 70 to 100 mg per deciliter (3.9 to 5.6 mmol per liter), were associated with death. A 50-year-old with diabetes died, on average, 6 years earlier than a counterpart without diabetes, with about 40% of the difference GSK923295 in survival attributable to excess nonvascular deaths.

CONCLUSIONS

In addition to vascular disease, diabetes is associated with substantial premature death from several cancers, infectious diseases, external

causes, intentional self-harm, and degenerative disorders, independent of several major risk factors. (Funded by the British buy GSK J4 Heart Foundation and

others.)”
“The kinetics of CD8(+) T cell epitope presentation contribute to the antiviral efficacy of these cells yet remain poorly defined. Here, we demonstrate presentation of virion-derived Vpr peptide epitopes early after viral penetration and prior to presentation of Vif-derived epitopes, which required de novo Vif synthesis. Two Rev epitopes exhibited differential presentation kinetics, with one Rev epitope presented within 1 h of infection. We also demonstrate that cytolytic activity mirrors the recognition kinetics of infected cells. These studies show for the first time that Vpr- and Rev-specific CD8(+) T cells recognize and kill simian immunodeficiency virus (SIV)-infected CD4(+) T cells early after SIV infection.”
“BACKGROUND

Long-acting

injectable risperidone, a second-generation antipsychotic agent, may improve adherence to treatment and outcomes in schizophrenia, but it has not been tested in a long-term randomized trial involving patients with unstable disease.

METHODS

We randomly assigned patients in the Veterans Affairs (VA) system who had schizophrenia or schizoaffective disorder and who had been hospitalized within the previous 2 years or were at imminent risk for hospitalization to 25 to 50 mg of long-acting injectable risperidone every two weeks or to Dolichyl-phosphate-mannose-protein mannosyltransferase a psychiatrist’s choice of an oral antipsychotic. All patients were followed for up to 2 years. The primary end point was hospitalization in a VA or non-VA psychiatric hospital. Symptoms, quality of life, and functioning were assessed in blinded videoconference interviews.

RESULTS

Of 369 participants, 40% were hospitalized at randomization, 55% were hospitalized within the previous 2 years, and 5% were at risk for hospitalization. The rate of hospitalization after randomization was not significantly lower among patients who received long-acting injectable risperidone than among those who received oral antipsychotics (39% after 10.8 months vs. 45% after 11.3 months; hazard ratio, 0.87; 95% confidence interval, 0.63 to 1.20).

Computational analysis found a canonical HNF1-binding motif withi

Computational analysis found a canonical HNF1-binding motif within 1 kbp of the promoter region of 13 carriers including the amino acid transporters see more Slc6a19, Slc6a20, Slc7a8 and Slc7a9; all expressed

predominantly in the kidney. Bisulfite genomic sequencing found that CpG dinucleotides neighboring the T-DMR tags were hypomethylated in the kidney compared with the liver. The Hnf1 alpha promoter region itself contained a T-DMR hypomethylated in the liver and kidney but hypermethylated in the cerebrum, consistent with the tissue distribution of Hnf1 alpha. Taken together, our results show a central role of DNA methylation in the kidney-specific expression of amino acid transporters thus determining both the tissue distribution of their master regulator, Hnf1 alpha, and its interaction with downstream genes. Kidney International (2010) 78, 569-577; doi:10.1038/ki.2010.176; published online 16 June 2010″
“Here we evaluate ML323 cost the influence of a new exercise protocol on movement disorders induced by neuroleptic drugs. In this animal model, involuntary movements are closely related to neuronal degeneration and oxidative stress (OS) that can be caused by pre-synaptic D2 receptor blockade increasing dopamine (DA) metabolism. The

increase in vacuous chewing movements (VCM) and the reduced locomotor activity induced by haloperidol treatment (12 mg/kg-im, once a week for 4 weeks) was prevented by exercise, see more 5 times per week, which was initiated four weeks before the first haloperidol administration. Exercise training also prevented the increase of haloperidol-induced lipid peroxidation in the cortex and subcortical region and recovered the catalase activity in the subcortical region. There was a negative correlation between catalase activity in the subcortical region and the VCM frequency

(r = 0.50, p < 0.05), as well as a positive correlation between VCM frequency and lipid peroxidation in the cortex (r = 0.64, p < 0.05) and subcortical region (r = 0.71, p < 0.0001). Both haloperidol and exercise increased DA uptake in the striatum, while the co-treatment (exercise plus haloperidol) reduced it. The striatal DA uptake correlated negatively with catalase activity (r = 0.51, p < 0.05), indicating a relationship between oxidative damage and the function of the transporter in the striatum. Our findings show that physical exercise can modulate dopamine uptake, especially when it is altered, and reveal the benefit of this new exercise protocol in the prevention of movement disorders related to oxidative damage. (C) 2010 Elsevier Ltd. All rights reserved.”
“Secondary hyperparathyroidism (SHPT) affects a significant number of hemodialysis patients, and metabolic disturbances associated with it may contribute to their high mortality rate.

In 80 DAVF cases,

seven of 40 cavernous sinus DAVFs, two

In 80 DAVF cases,

seven of 40 cavernous sinus DAVFs, two craniocervical junction DAVFs, and one inferior petrosal sinus DAVF drained via bridging veins to the brain stem.

Conclusion The AMV/APMV and bridging veins showed various PRN1371 datasheet anatomies and frequently showed a connection to the cavernous sinus. Knowledge of the venous anatomy is helpful for the diagnosis and intravascular treatment of DAVFs.”
“Purpose: Randomized controlled trials potentially provide the highest level of evidence to inform clinical decision making. Appropriate use of statistical methods is a critical aspect of all clinical research, including randomized controlled trials. We report the first formal evaluation to our knowledge of the statistical

methods of randomized controlled trials published in the urological literature in 1996 and 2004.

Materials and Methods: All human subjects randomized controlled VEGFR inhibitor trials published in 4 leading urology journals in 1996 and 2004 were identified for formal review. A standardized evaluation form was developed based on the Consolidated Standards of Reporting Trials statement. Each article was evaluated by 2 independent reviewers with formal training in research design and biostatistics who were blinded to study authors and institution. Discrepancies were settled by consensus.

Results: A total of 152 randomized controlled trials were reviewed (65 in 1996, 87 in

2004). The median sample size (IQR) per arm of parallel design randomized controlled trials published in 1996 and 2004 was 36 (11, 96) and 50 (26, 134) study subjects, respectively (p = 0. 157). Sample size justifications were provided by 19% of studies in 1996 and 47% of studies in 2004 (p = 0.001). Of randomized controlled trials 16 (25%) vs 32 (37%) identified a single primary outcome variable (p = 0.110). Effect Amrubicin size estimates for primary or secondary outcome variables were provided by 5% vs 13% (p = 0.090) and the precision of the effect was detailed by 5% vs 10% of randomized controlled trials (p = 0.195).

Conclusions: This formal review suggests that statistical analysis in urological randomized controlled trials has improved. However, considerable deficiencies remain. Ongoing education in applied statistics may further improve urological randomized controlled trial reporting.”
“Introduction A comprehensive evaluation of cranial magnetic resonance imagings (MRIs) of 23 patients with intracranial hypotension (IH) was performed, and the evolution of the abnormalities on follow-up MRIs was correlated with the clinical outcome.

Materials and methods The MRI report database at the University Health Network in Toronto was searched, and 23 cases of IH were identified between 2001 and 2007. A retrospective review of the MRIs of the brain and the electronic patient chart was performed.

Low risk tumors could be further divided into 2 groups with diffe

Low risk tumors could be further divided into 2 groups with different outcomes based on a size cutoff of 7 cm. Our classification was a significant predictor of

survival on multivariate analysis as well as M stage, N stage, Fuhrman grade check details and tumor size.

Conclusions: We confirm that the prognostic usefulness of the current 2002 TNM system for pT3 renal cell carcinoma is limited. We have identified 4 groups of tumors with distinct patterns of invasion and significantly different survival probabilities in this category. Large prospective series are needed to validate these findings.”
“The present study was conducted to examine the role of phospholipase A(2) and prostaglandins in Indian red scorpion (Mesobuthus tamulus; MBT) venom-induced augmentation of cardiopulmonary reflexes elicited by phenyldiguanide (PDG). Trachea, femoral artery and jugular vein were cannulated in urethane anesthetized adult albino rats. The effect of jugular venous injection of PDG on ECG, BP and respiratory activity were recorded. Injection of PDG (10 mu g/kg) evoked tachypnea/apnea, bradycardia and hypotension lasting for 60 s. After injecting MBT venom (100 mu g/kg) for 30 min, the PDG evoked reflex responses were augmented by two times and increased the pulmonary water content in envenomed animals, significantly.

The venom-induced augmentation of PDG reflex and the increase in pulmonary water content were blocked in animals pretreated with B-2 kinin receptor antagonist (Hoe 140; 2.32 mu g/kg). These responses induced by venom were also blocked by a phospholipase A(2) antagonist www.selleckchem.com/products/bmn-673.html (PACOCF(3); 1 mg/kg) and a prostaglandin synthase inhibitor (indomethacin; 10 mg/kg). The observations Liothyronine Sodium indicate that the venom-induced responses (augmentation of PDG reflex response and increased pulmonary water content) involve PLA(2)-prostaglandin pathway that is triggered by B-2 kinin receptors to sensitize the receptors located on the vagal C-fibres. (C) 2008 Elsevier Ireland Ltd. All rights reserved.”
“Purpose: Laparoscopic radical nephrectomy has been accepted as the preferred management for low stage renal

masses not amenable to partial nephrectomy. Early in the mid 1990s several studies suggested that obesity should be a relative contraindication to laparoscopy. We present our surgical outcomes and complications in patients undergoing open and laparoscopic nephrectomy, stratified by body mass index.

Materials and Methods: We retrospectively identified 88 patients, of whom 43 underwent open nephrectomy and 45 were treated laparoscopically. All patients were stratified by body mass index to compare multiple perioperative end points and pathological outcomes of laparoscopy.

Results: Overall our data showed that compared to open nephrectomy laparoscopic nephrectomy resulted in statistically significant lower estimated blood loss (147.95 vs 640.48 cc, p < 0.0002), operative time (156.

Here we present evidence of neural systems activity in circumscri

Here we present evidence of neural systems activity in circumscribed areas of the human brain involved in the encoding of intervals with durations of 9 and 18s in a temporal reproduction task using event-related functional magnetic resonance imaging (fMRI). During the encoding there was greater activation in more posterior parts of the medial frontal and insular cortex whereas the reproduction phase involved more anterior parts of these brain structures.

Intriguingly, activation curves over time show an accumulating pattern of neural activity, which peaks at the end of the interval within bilateral posterior insula and superior temporal cortex when individuals are presented with 9- and 18-s tone intervals. This is consistent with an accumulator-type activity, which encodes duration in the multiple seconds range. Given the close connection LY2109761 cost between the dorsal posterior insula and ascending internal body signals, Wortmannin solubility dmso we suggest that

the accumulation of physiological changes in body states constitutes our experience of time. This is the first time that an accumulation function in the posterior insula is detected that might be correlated with the encoding of time intervals. (C) 2010 Elsevier Ltd. All rights reserved.”
“The major oncogene of the Epstein-Barr virus (EBV), latent membrane protein 1 (LMP1), can be expressed from either of two promoters, ED-L1 or L1-TR, producing mRNAs of 2.8 kb or 3.5 kb, respectively. L1-TR, active in nasopharyngeal carcinoma and Hodgkin’s lymphoma, is located within the first of a highly variable reiteration of terminal repeat (TR) sequences that are joined by random recombination upon circularization of the linear genome at entry into cells. To determine whether the resultant TR number affects

LMP1 promoter activity, we Atezolizumab ic50 isolated single-cell clones bearing episomes of distinct TR numbers (6TR to 12TR) from epithelial cells newly infected with EBV. LMP1 mRNA levels correlated directly with the quantity of LMP1 protein expressed but varied inversely to TR number. Unexpectedly, the 3.5-kb transcript predominated only at lower TR reiterations. Diminished L1-TR activity in the context of a higher TR count was confirmed with a green fluorescent protein (GFP) reporter construct driven by L1-TR. Various levels of LMP1, expressed from virus isogenic in all but TR number, produced divergent morphological and growth phenotypes in each cell clone. Abundant LMP1 in 6TR cells yielded a relatively cytostatic state compared to the proliferative one produced by intermediate and smaller amounts in 8TR and 12TR clones. These findings suggest that the diversification of TR number, inherent in a round of EBV reactivation and reinfection, may itself be a component of the oncogenic process.

The safety and efficacy of bivalirudin in high-risk patients are

The safety and efficacy of bivalirudin in high-risk patients are unknown.

Methods We randomly assigned 3602 patients with ST-segment elevation myocardial infarction who presented within 12

hours after the onset of symptoms and who were undergoing primary PCI to LY3039478 treatment with heparin plus a glycoprotein IIb/IIIa inhibitor or to treatment with bivalirudin alone. The two primary end points of the study were major bleeding and combined adverse clinical events, defined as the combination of major bleeding or major adverse cardiovascular events, including death, reinfarction, target-vessel revascularization for ischemia, and stroke (hereinafter referred to as net adverse clinical events) within this website 30 days.

Results Anticoagulation with bivalirudin alone, as compared with heparin plus glycoprotein IIb/IIIa inhibitors, resulted in a reduced 30-day rate of net adverse clinical events (9.2% vs. 12.1%; relative risk, 0.76; 95% confidence interval [CI]

0.63 to 0.92; P = 0.005), owing to a lower rate of major bleeding (4.9% vs. 8.3%; relative risk, 0.60; 95% CI, 0.46 to 0.77; P< 0.001). There was an increased risk of acute stent thrombosis within 24 hours in the bivalirudin group, but no significant increase was present by 30 days. Treatment with bivalirudin alone, as compared with heparin plus glycoprotein

IIb/IIIa inhibitors, resulted in significantly lower 30-day rates of death from cardiac causes (1.8% vs. 2.9%; relative risk, 0.62; 95% CI, 0.40 to 0.95; P = 0.03) and death from all causes (2.1% vs. 3.1%; relative Ceramide glucosyltransferase risk, 0.66; 95% CI, 0.44 to 1.00; P = 0.047).

Conclusions In patients with ST-segment elevation myocardial infarction who are undergoing primary PCI, anticoagulation with bivalirudin alone, as compared with heparin plus glycoprotein IIb/IIIa inhibitors, results in significantly reduced 30-day rates of major bleeding and net adverse clinical events.”
“Habitat destruction resulting from human activity is a serious threat to biodiversity. The model developed by Tilman et al. [Tilman, D., May, R.M., Lehman, C.L., Nowak, M.A., 1994. Habitat destruction and the extinction debt. Nature 371, 65-66] has become an important toot for analyzing persistence of species in habitats under destruction. However, most analysis and applications of this model have been limited to the studies of species richness and the order of extinction. In this paper, we address other important issues related to succession of species abundances. We are interested in how the abundance ranking (i.e.

fluorescens 2-79 showed a net increase of only 1-2 log units Dis

fluorescens 2-79 showed a net increase of only 1-2 log units. Disinfection of seeds with calcium hypochlorite enhanced the growth of salmonellae.

Conclusions: Treatment of seeds with Ps. fluorescens 2-79 reduced the growth of salmonellae by 2-3 log units.

Significance and Impact of the Study: The potential of Ps. fluorescens 2-79 as a biological

agent for use in control of salmonellae on sprouting seeds was demonstrated and warrants further investigation.”
“It is often implied that during the occurrence of spindle oscillations, thalamocortical neurons do not respond to signals from the outside world. Since recording of sound-evoked activity from cat auditory cortex is common during spindling this implies that sound stimulation changes the spindle-related brain state. Local field potentials and multi-unit activity recorded from cat primary auditory cortex under ketamine anesthesia during successive silence-stimulus-silence conditions were used to investigate the effect of sound on cortical spindle oscillations. Multi-frequency stimulation suppresses spindle waves, as shown by the decrease of spectral power within the spindle

frequency range during stimulation as compared with the previous 3 silent period. We show that the percentage suppression is independent of the power of the spindle waves during silence, and that the suppression of spindle power occurs very fast after stimulus onset. The global inter-spindle rhythm was not disturbed during stimulation. Spectrotemporal and correlation analysis revealed that beta waves (15-26

Hz), and to a lesser extent delta waves, were modulated by the same inter-spindle rhythm as spindle oscillations. The suppression of spindle power during stimulation had no effect on the spatial correlation of spindle waves. Firing rates increased under stimulation and spectro-temporal receptive fields could reliably be obtained. The possible mechanism of suppression of spindle waves is discussed and it is suggested that suppression likely occurs through activity of the specific auditory pathway. (c) 2007 IBRO. Published by Elsevier Ltd. All rights reserved.”
“Aims: This paper reports on the results of a study aimed at evaluating the specificity and sensitivity of human-specific HF183 and HF134 Bacteroides markers in various host groups and their utility to detect human faecal pollution in storm water samples collected from nonsewered catchments in Southeast Queensland, Australia.

Methods and Results: The specificity and sensitivity of the HF183 and HF134 Bacteroides markers was evaluated by testing 207 faecal samples from 13 host groups, including 52 samples from human sources (via sewage and septic tanks). Polymerase chain reaction analysis of these samples revealed the presence/absence of HF183 and HF134 across these host groups, demonstrating their suitability for distinguishing between human and animal faecal pollution.