Median length of hospital stay was 7 days (range, 4 to 66 days),

Median length of hospital stay was 7 days (range, 4 to 66 days), and median intensive care unit length of stay was 3 days (range, 1-22 days). Complications included cardiopulmonary dysfunction in four (8%), postoperative renal insufficiency in 10 (18.9%), and other postoperative complications in 15 (28.3%). All 10 with renal insufficiency recovered renal function to baseline creatinine or a creatinine value <1.1 mg/dL. Mean increases in right and left ankle-brachial indicess were 0.54 +/- 0.25 and 0.59 +/- 0.22, respectively.

On univariate analysis, coronary artery disease and African American race were predictors of postoperative complications (P = .048). Age was significantly associated Barasertib with total complications. Patients with postoperative complications and/or renal insufficiency were older than those without such complications (P = .02) Independent predictors of prolonged hospital

stay were intraoperative blood replacement (P = .003), postoperative complications (P < .01), and postoperative renal insufficiency (P < .01). Prolonged intensive care unit stay was predicted by JRAO (P = .04), postoperative complications (P = .02), and postoperative renal insufficiency (P = .013). Survival at 3, 5, and 7 years were 86.6%, 76.5% and 50.9%, respectively. The reduced survival rates were predicted by previous myocardial infarction and existing coronary artery disease (P ioxilan < .01).

Conclusion: Abdominal Selleck Elafibranor aortic reconstruction is a safe method for treating CAAAO with low associated morbidity and mortality.

Aorto-renal thromboendartectomy with supra-renal aortic clamping and aortic replacement remains an effective treatment for those with significant pararenal aortic disease, and can be performed without significant renal impairment. (J Vase Surg 2010;52:1164-72.)”
“The acute effects of simvastatin lactone (lipophilic) and simvastatin acid (hydrophilic) on transient focal ischemia were assessed using the isolated guinea pig brain maintained in vitro by arterial perfusion. This new model of cerebral ischemia allows the assessment of the very early phase of the ischemic process, with the functional preservation of the vascular and neuronal compartments and the blood-brain barrier (bbb). The middle cerebral artery was transiently tied for 30 min followed by reperfusion for 60 min. Statins (nanomolar doses) were administered by intravascular continuous infusion starting 60 min before ischemia induction. Brain cortical activity and arterial vascular tone were continuously recorded. At the end of the experiment immunoreactivity for microtubule-associated protein 2 (MAP-2), expression of survival kinases (ERK and Akt) and total anti-oxidant capacity were assayed.

As these parietal regions are strongly linked with motor behavior

As these parietal regions are strongly linked with motor behavior, our results appear to support the motor simulation hypothesis for action understanding with the preferential recruitment of the mirror-neuron system. This could at least be the case when

no contextual information other than the visual properties of the movement is provided to discriminate the intention of an observed hand action. (C) 2010 DihydrotestosteroneDHT datasheet IBRO. Published by Elsevier Ltd. All rights reserved.”
“Live-attenuated vaccination with simian immunodeficiency virus (SIV) SIVmac239 Delta nef is the most successful vaccine product tested to date in macaques. However, the mechanisms that explain the efficacy of this vaccine remain largely unknown. We utilized an ex vivo viral suppression assay to assess the quality of the immune response in SIVmac239 Delta nef-immunized animals. Using major histocompatibility complex-matched Mauritian cynomolgus macaques, we did not detect SIV-specific functional immune responses in the blood by gamma interferon (IFN-gamma) enzyme-linked immunospot assay at select time points;

however, we found that lung CD8(+) T cells, unlike blood CD8(+) T cells, effectively suppress virus replication by up to 80%. These results suggest that SIVmac239 Delta nef may be an effective vaccine because it elicits functional immunity at mucosal sites. Moreover, these results underscore the limitations of relying on immunological measurements from peripheral blood lymphocytes in studies of protective immunity to HIV/SIV.”
“The this website nucleus tractus solitarius (NTS) constitutes the cough reflex arc and is thought to be one of the main sites

of codeine’s action. We have previously demonstrated using the guinea-pig brainstem slice that codeine inhibits the solitary tract-evoked excitatory postsynaptic currents (EPSCs) in the second-order NTS neurons through activating the presynaptic K+ channels. For further understanding of modulation of synaptic transmission by the antitussive, the effects of codeine (0.3-3.0 mM) on spontaneous EPSCs (sEPSCs) and miniature EPSCs (mEPSCs) were investigated in the NTS neurons of guinea-pigs. Codeine decreased the frequency and amplitude Oxaprozin of sEPSCs. This action of codeine was mimicked by specific mu and kappa receptor agonists, and blocked by and K receptor antagonists. An agonist of delta receptors was ineffective on sEPSCs. The inhibitory effect of codeine on sEPSCs persisted under perfusion of a K+ channel blocker, 4-aminopyridine. In the presence of tetrodotoxin or Cd2+ which blocks, respectively, the action potential-induced or voltage-dependent Ca2+ entry-induced transmitter release, codeine still had an inhibitory effect on the frequency of mEPSCs without any considerable effect on their amplitude.

All rights reserved “
“The flux-summation theorem (FST) is a

All rights reserved.”
“The flux-summation theorem (FST) is a central principle of metabolic control Z-IETD-FMK mw analysis. It describes how the control of flux through any metabolic pathway of arbitrary complexity is distributed among the component reaction steps. Two issues concerning the FST are discussed in this paper. First, it has been suggested that the theorem could, in principle, be inapplicable under certain conditions, i.e. the sum of the control coefficients

of all the enzymes supporting a pathway could exceed unity. Such conditions have not been found in any species so far studied, so in practice the FST is always applicable. I argue that applicability of the FST is a precondition for phenotypic robustness and therefore for survival. Second, the FST provides a basis for explaining dominance

that renders Fisher’s ‘modifier genes’ hypothesis otiose. Some recent misunderstandings of metabolic control analysis have led to the claim that this explanation is flawed and therefore that Fisher’s hypothesis can and should be reinstated. Here, these suggestions are refuted. (C) 2008 Elsevier Ltd. All rights reserved.”
“Background: The optimal combination drug therapy for hypertension is not established, although current U.S. guidelines recommend inclusion of a diuretic. We hypothesized that treatment with the combination of an angiotensin-converting-enzyme (ACE) inhibitor and a dihydropyridine calcium-channel blocker would be more effective in reducing the rate of cardiovascular events than treatment with an ACE inhibitor plus a thiazide diuretic.

Methods: In a randomized, double-blind trial, selleck chemicals we assigned 11,506 patients with hypertension who were at high risk

for cardiovascular events to receive treatment with either benazepril plus amlodipine or benazepril plus hydrochlorothiazide. The primary end point was the composite of death from cardiovascular causes, nonfatal myocardial infarction, nonfatal stroke, hospitalization for angina, resuscitation after sudden cardiac arrest, and coronary revascularization.

Results: The baseline characteristics of the two groups were similar. The trial was terminated early after a mean follow-up of 36 months, when the boundary of the prespecified stopping rule was exceeded. Mean blood pressures after dose adjustment were 131.6/73.3 mm Hg in the benazepril-amlodipine no group and 132.5/74.4 mm Hg in the benazepril-hydrochlorothiazide group. There were 552 primary-outcome events in the benazepril-amlodipine group (9.6%) and 679 in the benazepril-hydrochlorothiazide group (11.8%), representing an absolute risk reduction with benazepril-amlodipine therapy of 2.2% and a relative risk reduction of 19.6% (hazard ratio, 0.80, 95% confidence interval [CI], 0.72 to 0.90; P<0.001). For the secondary end point of death from cardiovascular causes, nonfatal myocardial infarction, and nonfatal stroke, the hazard ratio was 0.79 (95% CI, 0.67 to 0.92; P=0.002).

Furthermore, we report sustained multi-mode oscillations and pote

Furthermore, we report sustained multi-mode oscillations and potentially chaotic see more behavior caused by a sequestration-based feedback mechanism. Finally, we investigate the interplay between sequestration and external feedback loops. Our analysis thereby confirms, extends and generalizes previous results obtained by conventional modeling and points out the diversity of dynamics that sequestration can bring about. (C) 2010 Elsevier Ltd. All

rights reserved.”
“Brain vasopressin plays a role in behavioral and cognitive functions and in pathological conditions. Relevant examples are pair bonding, social recognition, fear responses, stress disorders, anxiety and depression. At the neuronal level, vasopressin exerts its effects by binding to Via receptors. In the brainstem, vasopressin can excite facial motoneurons by generating a sustained

inward current which is sodium-dependent, tetrodotoxin-insensitive and voltage-gated. This effect is independent of intracellular calcium mobilization and is unaffected by phospholipase C beta (PLC beta) or protein kinase C (PKC) inhibitors. There are two major unsolved problems. (i) What is the intracellular signaling pathway activated by vasopressin? (ii) What is the exact nature of the vasopressin-sensitive cation channels? We performed recordings in brainstem slices. Facial motoneurons were voltage-clamped in the whole-cell selleck inhibitor configuration. We show that a major fraction, if not the totality, of the peptide effect was mediated by cAMP signaling and that the vasopressin-sensitive cation channels were directly gated by cAMP. These channels appear to exclude lithium, are suppressed by 2-aminoethoxydiphenylborane

(2-APB) and flufenamic acid (FFA) but not by ruthenium red or amiloride. They are distinct from transient receptor channels and from cyclic nucleotide-regulated channels involved in visual and olfactory transduction. They present striking similarities with cation channels present in a variety of molluscan Sinomenine neurons. To our knowledge, the presence in mammalian neurons of channels having these properties has not been previously reported. Our data should contribute to a better knowledge of the neural mechanism of the central actions of vasopressin, and may be potentially significant in view of clinical applications. (C) 2011 IBRO. Published by Elsevier Ltd. All rights reserved.”
“Dynasore was recently developed as a small molecule, selective non-competitive inhibitor of the protein dynamin. This inhibitor has been shown to block dynamin-dependent endocytosis and is now used commonly to study vesicular recycling at synapses. We have measured the effects of dynasore on spontaneous and evoked transmitter release at the frog neuromuscular junction and shown that, in addition to inhibiting endocytosis, dynasore increases the probability of transmitter release.

The double variant M150L/F312C was most proficient at o-dianisidi

The double variant M150L/F312C was most proficient at o-dianisidine oxidation with dioxygen as the electron acceptor (5.5X wt), and the M150L single variant was most proficient at o-dianisidine oxidation with nitrite as the electron acceptor (8.5X wt). The library generation and screening method can

be employed for evolving new reductase functions in NiR and for screening of efficient folding ABT-737 chemical structure of engineered NiRs.”
“Purpose: Functional volume preservation after partial nephrectomy is a primary determinant of kidney function. We identified tumor features, including R.E.N.A.L. (radius for tumor size as maximal diameter, exophytic/endophytic tumor properties, nearness of deepest portion of tumor to collecting system or sinus, anterior/posterior descriptor and location relative to polar line) and centrality index nephrometry scores, associated with volume loss after partial nephrectomy.

Materials and Methods: A chart and imaging review was done for 237 patients who underwent partial nephrectomy from 2007 to 2010 and met study inclusion criteria. R.E.N.A.L. and centrality index nephrometry scores were measured in all patients. Percent functional volume preservation was estimated a median of 1.4 years after surgery using the cylindrical volume ratio method. Statistical analysis was done to study associations.

Results:

Independent tumor features associated with percent functional volume preservation included tumor diameter (p < 0.001) and the distance from tumor periphery to kidney center (p = 0.02). R.E.N.A.L. and centrality index scores were associated with percent GSK J4 mouse functional volume preservation selleck compound (each p < 0.001). Nephrometry scores were also associated with nadir and late

percent glomerular filtration rate preservation. Tumors classified as highly complex, with a centrality index score of 1.5 or less and a R.E.N.A.L. score of 10 or greater, were associated with an average 28% to 30% functional parenchymal volume loss of operated kidneys. A mean 8% difference in percent functional volume preservation was observed among low, intermediate and high tumor complexity categories for R.E.N.A.L. and centrality index scores.

Conclusions: R.E.N.A.L. and centrality index nephrometry scores were associated with changes in the percent functional volume preservation and the perioperative functional decrease. Nephrometry scores performed better than diameter alone on statistical analysis. Nephrometry scores may be useful to estimate the likelihood of operative volume loss and by proxy the functional outcome.”
“Parkinson’s disease (PD) is a neurodegenerative disorder characterized by decreased dopamine, intracellular inclusions (Lewy bodies) and brain iron deposits. PD has also been related with reduced ferroxidase activity, diminished antioxidant defenses and lipid peroxidation.

This mixture induced persistent adverse

This mixture induced persistent adverse click here effects, as adult male mammary glands showed hypertrophic growth. A reduced anogenital distance in newborn males indicated an anti-androgenic mode of action. Testosterone levels, testis and prostate weights, and expression of selected genes in testis and prostate were unaffected. Decreased serum estradiol was seen in genistein-exposed dams. This study indicated adverse effects at high intake levels in rats, but does

not provide evidence for risk of phytoestrogen-mediated endocrine disruption at normal human dietary consumption levels. Further studies are warranted to increase the knowledge upon which risk assessment on dietary phytoestrogen exposure during pregnancy and infancy is based. (C) 2013 Elsevier Inc. All rights reserved.”
“Benzo[a]pyrene (B[a]P) is a prototypical polycyclic aromatic hydrocarbon (PAH) present in cigarette smoke. We previously showed that B[a]p adversely affects follicular development and survival. The objective of this study was to identify the key molecular pathways underlying B[a]P-induced abnormal follicular development. Isolated follicles (100-130 pm) from ovaries of F1 hybrid (C57BL/6j x CBA/Ca) mice were cultured for 8 (preantral/antral follicles) and 12 (preovulatory follicles) days in increasing

concentrations of B[a]p (0 ng/mL [control] to 45 ng/mL). Expression of aryl hydrocarbon receptor (AhR), aryl hydroxylase steroidogenic enzyme, cell-cycle, Temsirolimus solubility dmso and apoptotic genes were quantified. B[a]P exposure significantly (P<0.05) increased mRNA expression of Cyp1a1 in preantral/antral follicles and Cyp1b1, Box and Hsp90ab1 in preovulatory follicles. No significant effect Electron transport chain on mRNA expression of

StAR, Cyp11a1, aromatase, Cdk4, Cdk2, Ccnd2, CIAP2, and survivin was observed. In conclusion, this study suggests that B[a]P exposure significantly affects the phase I enzymes and cell death genes during preantral/antral and preovulatory growth, and thus highlight the AhR signaling and apoptotis pathways in delayed follicle growth and decreased viability. (C) 2013 Elsevier Inc. All rights reserved.”
“The present study investigates the effects of Bisphenol A on the induction of dominant lethal mutation and male reproductive functions. The male rats were gavaged with BPA (10 mu g, and 5.0 mg/kg/bw) over a period of six days and control group with vehicle. Each male was cohabited with untreated females sequentially over the period of eight weeks. The mated females were sacrificed on 15th day of gestation. The results revealed a significant increase in dominant lethal mutation rate during fourth and sixth week of mating intervals at 5.0 mg/kg/bw dose of BPA. These findings demonstrate that mid-spermatids and spermatocytes are more sensitive to BPA exposure.

In addition, we show that base pair mutations in the vRNA promote

In addition, we show that base pair mutations in the vRNA promoter can lead to nontemplated dead-end mutations during replication to cRNA in vivo. Based on our observations, we propose C59 wnt cell line a new model for the de novo initiation of influenza virus replication.”
“Accurate characterization of the biochemical pathways of nitric oxide

(NO) is essential for investigations in the field of NO research. To analyze the different reaction pathways of enzymatic and non-enzymatic NO formation, determination of the source of NO is crucial. Measuring NO-related products in biological samples distinguishing between O-14 and (NO)-N-15 offers the opportunity to specifically analyze NO signaling in blood and tissue. The aim of this study was to establish a highly sensitive technique for the specific measurement of NO in an isotopologue-selective manner in biological samples. With the cavity leak-out spectroscopy set-up (CALOS) a differentiation between (NO)-N-14 and (NO)-N-15 is feasible. We describe here the employment of this method for measurements in biological samples. Certified gas mixtures of (NO)-N-14/N-2 and (NO)-N-15/N-2 were used to calibrate the system. click here (NO2-)-N-14 and (NO2-)-N-15 of aqueous and biological samples were reduced in a triiodide solution, and the NO released was detected via CALOS. Gas-phase chemiluminescence

detection (CLD) was used for evaluation. The correlation received for both methods for the detection of NO in the gas-phase was r = 0.999, p < 0.0001. Results obtained using aqueous and biological samples verified that CALOS enables NO measurements with high accuracy (detection limit for (NO2-)-N-14 0.3 pmol and 15 NO2- 0.5 pmol; correlation (NO)-N-14: p < 0.0001, r = 0.975, (NO)-N-15: p < 0.0001, r = 0.969). The CALOS assay represents an extension of NO measurements gmelinol in biological samples, allowing specific investigations of enzymatic and

non-enzymatic NO formation and metabolism in a variety of samples. (c) 2008 Elsevier Inc. All rights reserved.”
“To identify host proteins interacting with Tomato bushy stunt virus (TBSV) replication proteins in a genome-wide scale, we have used a yeast (Saccharomyces cerevisiae) proteome microarray carrying 4,088 purified proteins. This approach led to the identification of 58 yeast proteins that interacted with p33 replication protein. The identified host proteins included protein chaperones, ubiquitin-associated proteins, translation factors, RNA-modifying enzymes, and other proteins with yet-unknown functions. We confirmed that 19 of the identified host proteins bound to p33 in vitro or in a split-ubiquitin-based two-hybrid assay. Further analysis of Cdc34p E2 ubiquitin-conjugating enzyme, which is one of the host proteins interacting with p33, revealed that Cdc34p is a novel component of the purified viral replicase.

We conducted a randomized, controlled trial at 24 hospitals in Ja

We conducted a randomized, controlled trial at 24 hospitals in Japan to compare D2 lymphadenectomy alone

with D2 lymphadenectomy plus PAND in patients undergoing gastrectomy for curable gastric cancer.

Methods: Between July 1995 and April 2001, 523 patients with curable stage T2b, T3, or T4 gastric cancer were randomly assigned during surgery to D2 lymphadenectomy alone (263 patients) or to D2 lymphadenectomy plus PAND (260 patients). We did not permit any adjuvant therapy before the recurrence of cancer. The primary end point was overall survival.

Results: The rates of surgery-related complications among patients assigned to D2 lymphadenectomy alone and those assigned to D2 lymphadenectomy plus PAND were 20.9% and 28.1%, respectively (P=0.07). There were no significant differences between the two groups in the frequencies of anastomotic leakage, pancreatic fistula, abdominal abscess, pneumonia, or death from PD0325901 in vitro any cause within 30 days after surgery (the rate of death was 0.8% in each group). The median operation time was 63 minutes longer and the median blood loss was 230 ml greater in the group assigned to D2 lymphadenectomy plus PAND. The 5-year overall survival rate was 69.2% for the group assigned to D2 lymphadenectomy alone

and 70.3% for the group assigned to D2 lymphadenectomy plus PAND; the hazard ratio for death was 1.03 (95% confidence interval [CI], 0.77 to 1.37; P=0.85). There were no significant differences in recurrence-free survival between the two groups; the hazard ratio for recurrence find more was 1.08 (95% CI, 0.83 to 1.42; P=0.56).

Conclusions: As compared with D2 lymphadenectomy alone, treatment with D2 lymphadenectomy plus PAND does not improve the survival

rate in curable gastric cancer. (ClinicalTrials.gov number, NCT00149279.).”
“Objectives. The present study of a representative sample Of Older ado Its quantified everyday physical activity (EPA) by having participants wear actigraphs. Our objectives were to examine whether poor health may partly explain why older adults become less physically active with advancing age and whether gender might moderate the Sclareol extent to which health status predicts EPA.

Methods. We performed multiple regression analyses on a sample of older, community-dwelling adults (aged 80-98 years, N = 198; women = 63.1%).

Results. The results imply that age-related declines in EPA may be partially accounted for by health (in men) and 1)), living arrangements (in women).

Discussion. We consider reasons why poorer health might erode EPA for men (but not women) and why living alone might erode EPA for women (but not men).”
“Background: Women make up more than 50% of adults living with human immunodeficiency virus (HIV) infection or the acquired immunodeficiency syndrome (AIDS) in sub-Saharan Africa. Thus, female-initiated HIV prevention methods are urgently needed.

The expressions of 18 proteins related to stress response showed

The expressions of 18 proteins related to stress response showed increased trends, including several highly induced heat shock proteins and proteins related to cellular signaling pathways.”
“BACKGROUND

There is a need for interferon-free treatment regimens for hepatitis C virus (HCV) infection. The goal of this study was to evaluate ABT-450, a potent HCV NS3 protease https://www.selleckchem.com/products/a-1155463.html inhibitor, combined with low-dose ritonavir (ABT-450/r), in addition to ABT-333, a nonnucleoside NS5B polymerase inhibitor, and ribavirin, for the treatment of HCV infection.

METHODS

We conducted a 12-week, phase 2a, open-label study involving patients

who had HCV genotype 1 infection without cirrhosis. All patients received ABT-333 (400 mg twice daily) and ribavirin (1000 to 1200 mg per day) and one of two daily doses of ABT-450/r. Groups 1 and 2 included previously untreated patients; group 1 received 250 mg of ABT-450 and 100 mg of ritonavir, find more and group 2 received 150 mg and

100 mg, respectively. Group 3, which included patients who had had a null or partial response to previous therapy with peginterferon and ribavirin, received daily doses of 150 mg of ABT-450 and 100 mg of ritonavir. The primary end point was an undetectable level of HCV RNA from week 4 through week 12 (extended rapid virologic response).

RESULTS

A total of 17 of the 19 patients in group 1 (89%) and 11 of the 14 in group 2 (79%) had an extended rapid virologic response; a sustained virologic response 12 weeks after the end of treatment was achieved in 95% and 93% of the patients, respectively. In group 3, 10 of 17 patients (59%) had an extended rapid virologic response, and 8 (47%) had a sustained virologic response 12 weeks after therapy;

6 patients had virologic breakthrough, and 3 had a relapse. Adverse events included abnormalities in liver-function tests, fatigue, nausea, headache, dizziness, buy DAPT insomnia, pruritus, rash, and vomiting.

CONCLUSIONS

This preliminary study suggests that 12 weeks of therapy with a combination of a protease inhibitor, a nonnucleoside polymerase inhibitor, and ribavirin may be effective for treatment of HCV genotype 1 infection. (Funded by Abbott; ClinicalTrials.gov number, NCT01306617.)”
“Objective: Posteversion carotid endarterectomy hypertension has been suggested to be associated with impaired baroreceptor sensitivity (BRS), which has been identified as a factor of prognostic relevance in patients with cardiovascular disease. The aim of this prospective single-center nonrandomized study was to describe the changes of BRS in the early postoperative period after eversion carotid endarterectomy (E-CEA).

A number of groups of functionally related genes were also signif

A number of groups of functionally related genes were also significantly decreased in infected spleens. These included genes related to iron metabolism and homeostasis, pathways that have also been implicated in prion pathogenesis in the brain. These gene Adriamycin manufacturer expression alterations provide insights into the molecular mechanisms underlying prion disease pathogenesis and may serve as a pool of potential surrogate markers for the early detection and diagnosis of some prion diseases.”
“Chronic wasting disease (CWD) is a transmissible

spongiform encephalopathy affecting North American cervids. Because it is uniformly fatal, the disease is a major concern in the management of white-tailed deer populations. Management programs to control CWD require improved knowledge of deer interaction, movement, and population connectivity that could influence disease transmission and spread. Genetic methods were employed to evaluate connectivity among populations in the CWD management zone of southern Wisconsin. A 576-base-pair region of the mitochondrial DNA of 359 white-tailed see more deer from 12 sample populations was analyzed. Fifty-eight variable sites were detected within the sequence,

defining 43 haplotypes. While most sample populations displayed similar levels of haplotype diversity, individual haplotypes were clustered on the landscape. Spatial clusters of different haplotypes were apparent in distinct ecoregions surrounding CWD outbreak areas. The spatial distribution of mtDNA haplotypes suggests that clustering of the deer matrilineal groups and population connectivity are associated with broad-scale geographic landscape features. These landscape characteristics may also influence the contact rates between groups and therefore the potential spread of CWD; this may be especially true of local

disease spread between female social groups. Our results suggest that optimal CWD management needs to be tailored to fit gender-specific dispersal behaviors and regional differences in deer population connectivity. Erythromycin This information will help wildlife managers design surveillance and monitoring efforts based on population interactions and potential deer movement among CWD-affected and unaffected areas.”
“Household-level Canadian meat purchases from 2002 to 2008 and a Food Opinions Survey conducted in 2008 were used to explore consumer responses to bovine spongiform encephalopathy (BSE) at the national level in Canada. Consumption in terms of the number of unit purchases was analyzed with a random-effects negative binomial model. In this study, household heterogeneity in meat purchases was partially explained using data from a self-reported food opinions survey. Of special interest was the hypothesis that consumers responded consistently to BSE in a one-time survey and in actual meat purchase behavior spanning years. Regional differences appeared, with consumers in eastern Canada reacting most negatively to BSE.