For the simulated data, it produced 100% sensitivity and specific

For the simulated data, it produced 100% sensitivity and specificity. For the real data, it achieved 83% sensitivity and 78% specificity.”
“The use of opioids following surgery is associated with a high incidence of postoperative nausea and vomiting (PONV). We conducted a prospective, randomized, double-blind, placebo-controlled study to investigate the effect of orally administered aprepitant, a neurokinin-1 receptor antagonist, for reducing PONV in patients with fentanyl-based,

patient-controlled analgesia (PCA) given intravenously after gynecological laparoscopy.

One hundred and twenty female patients (ages 21-60) undergoing laparoscopic hysterectomy were randomly allocated to receive 80 mg (A80 group, n = 40) or 125 mg aprepitant (A125 group, n = 40) or placebo (control group, n = 40) orally 2 h before anesthesia induction. Anesthesia was maintained with isoflurane and remifentanil, JNJ-26481585 and PCA IV using fentanyl and ketorolac were find more provided for 48 h after surgery. Incidences of nausea, vomiting/retching, and use of rescue antiemetics were recorded at 2, 24, and 48 h after surgery. Complete response was defined as no PONV and no need for rescue treatment.

The incidence of complete response was significantly lower

in the A80 and A125 groups than in controls, 56 % and 63 %, vs. 28 %, respectively, P = 0.007 and P = 0.003, respectively, during the first 48 h, and 65 % and 65 % vs. 38 %, respectively, selleck screening library both P = 0.025, during the first 2 h. However, there were no statistically significant differences between A80 and A125 groups in the incidences of complete response and PONV during the

study period.

Aprepitant 80 mg orally was effective in lowering the incidence of PONV in the first 48 h after anesthesia in patients receiving fentanyl-based PCA after gynecological laparoscopy.”
“Hydralazine is a medication that has been used to manage hypertension and heart failure. In this case series, we report 4 patients who presented to a large, Midwestern academic medical center on chronic hydralazine therapy with acute kidney injury, nephritic urine sediment on urine microscopy, and the simultaneous presence of autoantibodies suggesting both drug-induced lupus and drug-induced vasculitis. All of them had evidence of pauci-immune glomerulonephritis on kidney biopsy. All the patients reported in our series are white women older than 60 years who were receiving hydralazine for more than 12 months at a dose of 150 mg or more. On initial presentation, all had evidence of acute kidney injury with nephritic sediment. These patients also had high titers of serum anti-neutrophil cytoplasmic antibodies of the antimyeloperoxidase subtype and simultaneous presence of multiple autoantibodies. All of them subsequently underwent a kidney biopsy, which revealed pauci-immune glomerulonephritis.

A multiscale approach was employed, combining tensile shear stren

A multiscale approach was employed, combining tensile shear strength measurements, optical microscopy, and adhesion measurements at the nanoscale using atomic force microscopy. Tensile shear strength measurements were performed on beech wood substrates bonded with either dispersions of soy protein isolate or wheat gluten to investigate bond strength and water resistance. The results reveal a significant difference in

bond strength between the plant proteins. Soy protein isolate is superior to wheat gluten, especially regarding this website water resistance, both under acidic and alkaline conditions. Cross sections of the wood substrates were examined by optical microscopy to study protein penetration and bond line thickness. The results indicate that a proper bond can be obtained using lower amount of soy protein isolate than wheat gluten. Atomic force microscopy in colloidal probe mode was used to investigate nanoscale adhesion between cellulose and solvent cast protein films. The results show that adhesion between the plant proteins and the wood component is important for the bonding performance. Further, it is shown that the results from atomic force microscopy and tensile shear strength measurements display the same trend demonstrating that

the bonding Apoptosis inhibitor properties translates well spanning regimes from the macro- to the nanoscale. The presented multiscale approach is shown to have great potential and may be used in the future to predict properties at different length Sapanisertib chemical structure scales in the design and formulation of new bioadhesives. (C) 2012 Elsevier B.V. All rights reserved.”
“Epigenetic mechanisms regulate the interaction between the genome and the environment and have been implicated in the etiology of various brain diseases. One

type of epigenetic modification, histone acetylation, is dynamically altered during memory formation. Histone acetylation is regulated by the activities of histone deacetylase (HDAC) and histone acetyltransferase enzymes. The use of HDAC inhibitors has emerged as a promising new strategy for the therapeutic intervention of neurodegenerative disease. We used a combination of pharmacological and mouse genetic approaches that allowed us to identify HDAC2 as a specific negative regulator of synaptic plasticity and memory formation. Our results suggest that HDAC inhibitors enhance cognitive function by inhibiting HDAC2, which renders HDAC2 target genes more accessible to transcriptional activators and coactivators recruited by neuronal activity stimulation. The data presented at the 2011 Barcelona ADPD Conference delineate a novel and important role for HDAC2 activity in the cognitive impairments associated with neurodegenerative disease. Copyright (C) 2012 S. Karger AG, Basel”
“Milia en plaque (MEP) is an uncommon finding characterized by numerous tiny milia within an erythematous area.

In patients with prosthetic

In patients with prosthetic AZD5153 clinical trial valves, in situ anticoagulation in the form of heparin can safely be restarted as early as 3 days and switched to oral anticoagulation in the form of warfarin at 7 days without major concerns of bleeding.”
“Background and Objectives Recombinant activated factor VII (rFVIIa) is often used in off-label indications, including many situations in which the patients are at risk of thrombosis. In this study, we retrospectively reviewed the use of rFVIIa in patients with acute liver failure – UNOS Status 1A (ALF-1A) to determine its efficacy

and safety profile.

Materials and Methods Using the transplantation records, all adult patients with ALF-1A were identified from 6/2001 to 3/2009. From patients’ medical charts, rFVIIa dose, blood component usage, selleck chemicals short-term outcomes [length of intensive care unit (ICU) and hospital stay, ability to undergo orthotopic liver transplant (OLT) and in-hospital survival rate] and adverse events were examined.

Results Forty-two patients with ALF-1A were identified. Fifteen patients received rFVIIa with doses ranging between 244g/kg and 1268g/kg. Three patients received two doses of rFVIIa. The age, baseline activated partial thromboplastin time (aPTT) and platelet (PLT) count were not statistically different between the group receiving rFVIIa versus the group that did not. However, the prothrombin time (PT) was significantly higher in the rFVIIa group. Although

the rFVIIa group stayed in the ICU longer and required significant more blood products during admission, there was no statistical difference between the two groups in terms of length of hospital stay, ability

to undergo OLT and survival rate. There was no increase in complications, including thrombosis, after receiving rFVIIa.

Conclusion Recombinant activated factor VII (rFVIIa) appears to be safe in patients with ALF-1A, but to elucidate its full role, a randomized controlled trial would be ideal.”
“To investigate the effects of amlodipine in combination with atorvastatin on carotid atherosclerotic changes in metabolic syndrome, 8-week-old Zucker fatty rats were treated with vehicle, amlodipine, atorvastatin, or amlodipine in combination with atorvastatin for 28 days. Histological studies of common carotid arteries showed that lipid deposition determined by Sudan III AG-881 purchase staining was significantly reduced in rats treated with amlodipine or atorvastatin alone and was further reduced by amlodipine in combination with atorvastatin. Immunohistochemical studies of the pro-inflammatory cytokine tumor necrosis factor (TNF)-alpha, the arterial calcification initiator bone morphogenetic protein (BMP) 2, the angiogenic factor Notch1, and the smooth muscle cell marker alpha-smooth muscle actin (SMA) showed that the high expression of all four protein in vehicle-treated rats was greatly decreased by amlodipine, atorvastatin, or amlodipine in combination with atorvastatin, in ascending order.


“Aim: The aim of this study is to analyze the impact of be


“Aim: The aim of this study is to analyze the impact of berberine on the two human epithelial ovarian carcinoma cell lines ON-01910 nmr OVCAR-3 and SKOV-3 in relation

to the potential usefulness of berberine in the treatment of epithelial ovarian cancer.

Methods: Under adherent culture conditions, the cell lines were treated with berberine and analyzed for changes in cell growth. The cell cycle duration and degree of apoptosis were evaluated by means of propidium iodide staining and Annexin V staining.

Results: After the berberine treatment, the two cell lines showed a dose-dependent reduction in the growth rate. In the cell cycle analysis, the OVCAR-3 and SKOV-3 cells showed an increased DNA content of 5% in the G2/M phase and 7% in the S phase, respectively. Additionally, the results confirm the cell cycle arrest by immunoblotting and the up-regulation of p27; however, in the apoptosis analysis, neither cell line showed an increase in apoptosis after the berberine Ilomastat in vivo treatment.

Conclusion: Berberine treatment can inhibit proliferation through a cell cycle arrest in OVCAR-3 and SKOV-3 cells. Thus, berberine may be a novel anticancer drug

for the treatment of ovarian cancer.”
“BACK GROUND: For high-risk patients who do not achieve guideline-recommended LDL-C levels, more intensive treatment including statin-uptitration to higher doses or potency, as well as combination therapy may be considered. A better understanding of statin treatment patterns in real-world clinical practice may contribute to improved lipid-lowering management in these patients.

OBJECTIVE: We determined treatment pattern changes among patients with high risk of cardiovascular disease who were not at low-density lipoprotein cholesterol (LDL-C) goal on statin Ispinesib cell line monotherapy.

METHODS: Treatment pattern changes were evaluated among patients newly initiated on statins between January 1, 2006, and August 31, 2009, in the HealthCore Integrated Research Database. Rates and mean time to first and second treatment changes were examined in patients with claims for coronary heart disease (CHD), atherosclerotic vascular disease (AVD), and diabetes mellitus during 12 months before index, who were not at LDL-C <70 mg/dL

at their first-eligible LDL-C test (>= 4 weeks after index). Therapy change was assessed for 12 months after the LDL-C result.

RESULTS: Of 11,473 eligible subjects, 61.3% had diabetes, 26.6% had CHD and AVD, and 12.1% had CHD and AVD and diabetes. At index, patients were prescribed medium-potency levels of statins, including simvastatin (44.7%), atorvastatin (31.5%), and other statins (23.8%). Mean +/- SD LDL-C before statin initiation was 138 34 mg/dL, and at the first-eligible LDL-C result after index, it was 101 25 mg/dL. During follow-up, 7444 subjects (64.9%) experienced a first treatment change, with mean time to change of 93.8 +/- 92. days, whereas 4029 (36.1%) had no treatment change. Discontinuation of index therapy occurred in 46.

This spoligotype was not associated with drug resistance or incre

This spoligotype was not associated with drug resistance or increased transmissibility; its prevalence in Bulgaria can rather be attributed to the historical PND-1186 clinical trial circulation in the country, having led, speculatively, to adaptation to the local human population.”
“Animal studies have indicated an important role of tumor necrosis factor-alpha (TNF-alpha) in the pathogenesis of myasthenia

gravis (MG), and trials of monoclonal antibodies that block TNF-alpha have shown clinical improvement. However, before a TNF-alpha blocking agent is proposed for treatment of MG, whether serum TNF-alpha level correlates with the patient’s condition should be confirmed. Therefore, we evaluated the relationship between the serum TNF-alpha level and clinical factors, including the quantitative MG score and the anti-acetylcholine receptor antibody level, in 33 MG patients. TNF-alpha levels ranged from 0.44 to 3.63 pg/mL and did not correlate with clinical factors. Overall, we found that serum TNF-alpha levels varied greatly among MG patients.”
“The ability of tumor necrosis factor (TNF)-alpha inhibitors to impair pivotal pro-inflammatory host defenses may facilitate the development of disseminated cryptococcosis. Gastrointestinal (GI) tract disease is an unusual presentation of this yeast infection. We describe a unique case of disseminated cryptococcosis presenting as colitis that mimicked an exacerbation

of Crohn’s

disease in a TNF-alpha inhibitor recipient. Review of existing literature shows that in immunocompromised patients, GI cryptococcosis invariably coexists Blebbistatin supplier with disseminated cryptococcosis, often lacks prominent GI symptomatology, and is primarily diagnosed postmortem. In cases buy AR-13324 with opportunistic infections, discontinuation of TNF-alpha inhibitors is a common practice, however rapid rebound of inflammatory responses may incur the risk of immune reconstitution syndrome. (C) 2009 International Society for Infectious Diseases. Published by Elsevier Ltd. All rights reserved.”
“In the present study, we determined the significance of tumor necrosis factor-related apoptosis-inducing ligand (TRAIL) in Alzheimer’s disease (AD). We characterized the expression of TRAIL protein in the cerebrospinal fluid (CSF) and serum with ELISA and TRAIL mRNA in the peripheral blood mononuclear cells (PBMCs) with real-time PCR in 22 patients with AD and 20 control cases. We could not find TRAIL protein in the CSF samples. The concentration of TRAIL protein in sera from patients with AD was not different from controls. However, there was an inverse correlation between serum TRAIL levels and Mini-Mental State Examination scores in AD patients. Also we did not find significant difference in TRAIL mRNA in the PBMCs of patients with AD when compared with control group. Our data indicate that TRAIL serum level decreases in the late stage of disease.

This gene was found to be located between the molecular markers X

This gene was found to be located between the molecular markers Xgwm471 and Xgwm350 GDC-0941 cell line on chromosome arm 7AS by microsatellite

analysis. No Rht gene had been reported from this chromosome; we designated it as Rht22. Rht 22, unlike other previously reported Rht genes, does not reduce internodal cell length. Reduced cell numbers might explain the short stem trait.”
“Background: Frailty remains an elusive concept despite many efforts to define and measure it. The difficulty in translating the clinical profile of frail elderly people into a quantifiable assessment tool is due to the complex and heterogeneous nature of their health problems. Viewing frailty as a ‘latent vulnerability’ in older people this study aims to derive a model based measurement of frailty and examines its internal reliability in community dwelling elderly.

Method: The British Women’s Heart and Health Study (BWHHS) cohort of 4286 women aged 60-79 years from 23 selleckchem towns in Britain

provided 35 frailty indicators expressed as binary categorical variables. These indicators were corrected for measurement error and assigned relative weights in its association with frailty. Exploratory factor analysis (EFA) reduced the data to a smaller number of factors and was subjected to confirmatory factor analysis (CFA) which restricted the model by fitting the EFA-driven structure to observed data. Cox

regression analysis compared the hazard ratios for adverse outcomes of the newly developed British frailty index (FI) with a widely known FI. This process was replicated in the MRC Assessment study of older people, a larger cohort drawn from 106 general practices in Britain.

Results: Seven factors explained the association between frailty indicators: physical ability, cardiac symptoms/disease, respiratory symptoms/disease, physiological measures, psychological problems, co-morbidities and visual impairment. Based on existing concepts and statistical indices of fit, frailty was best see more described using a General Specific Model. The British FI would serve as a better population metric than the FI as it enables people with varying degrees of frailty to be better distinguished over a wider range of scores. The British FI was a better independent predictor of all-cause mortality, hospitalization and institutionalization than the FI in both cohorts.

Conclusions: Frailty is a multidimensional concept represented by a wide range of latent (not directly observed) attributes. This new measure provides more precise information than is currently recognized, of which cluster of frailty indicators are important in older people. This study could potentially improve quality of life among older people through targeted efforts in early prevention and treatment of frailty.

The methodology is very simple to implement It is suggested that

The methodology is very simple to implement. It is suggested that the model should be parameterized for other countries.”
“Plastid acquisition, endosymbiotic associations, lateral gene transfer,

organelle degeneracy or even organelle loss influence metabolic capabilities in many different protists. LDN-193189 ic50 Thus, metabolic diversity is sculpted through the gain of new metabolic functions and moderation or loss of pathways that are often essential in the majority of eukaryotes. What is perhaps less apparent to the casual observer is that the sub-compartmentalization of ubiquitous pathways has been repeatedly remodelled during eukaryotic evolution, and the textbook pictures of intermediary metabolism established for animals, yeast and plants are not conserved in many protists. Moreover, metabolic remodelling can strongly influence the regulatory mechanisms that control carbon flux through the major metabolic pathways.

Here, we provide an overview of how core metabolism has been reorganized in various unicellular eukaryotes, focusing in particular on one near universal catabolic pathway buy SB203580 (glycolysis) and one ancient anabolic pathway (isoprenoid biosynthesis). For the example of isoprenoid biosynthesis, the compartmentalization of this process in protists often appears to have been influenced by plastid acquisition and loss, whereas for glycolysis several unexpected modes of compartmentalization have emerged. Significantly, the example of trypanosomatid glycolysis illustrates nicely how mathematical modelling and systems biology can be used to uncover or understand

novel modes of pathway regulation.”
“A core-shell nanosilica (nano-SiO(2))/fluorinated acrylic copolymer latex, where nano-SiO(2) served as the core and a copolymer of butyl acrylate, methyl methacrylate, and 2,2,2-trifluoroethyl methacrylate (TFEMA) served as the shell, was synthesized in this study by seed emulsion polymerization. The compatibility between the core and shell was enhanced by the introduction Selleckchem NSC 23766 of vinyl trimethoxysilane on the surface of nano-SiO(2). The morphology and particle size of the nano-SiO(2)/poly(methyl methacrylate butyl acrylate-2,2,2-trifluoroethyl methacrylate) [P(MMA-BA-TFEMA)] core-shell latex were characterized by transmission electron microscopy. The properties and surface energy of films formed by the nano-SiO(2)/P(MMA-BA-TFEMA) latex were analyzed by Fourier transform infrared spectroscopy, differential scanning calorimetry, thermogravimetric analysis, scanning electron microscopy/energy-dispersive X-ray spectroscopy, and static contact angle measurement. The analyzed results indicate that the nano-SiO(2)/P(MMA-BA-TFEMA) latex presented uniform spherical core shell particles about 45 nm in diameter.

(C) 2011 American Institute of Physics [doi:10 1063/1 3624737]“<

(C) 2011 American Institute of Physics. [doi:10.1063/1.3624737]“
“Background: Stapler-assisted hepatectomy has not been well established,

as a routine procedure, although few reports exist in the literature. This analysis assesses the safety and outcome of the method based on peri-operative data.

Materials and Methods: From February 2005 to December 2006, endo GIA vascular staplers were used for parenchymal liver transection in 62 consecutive cases in our department. There were 18 (29%) patients with hepatocellular carcinoma (HCC), 31 (50%) with metastatic lesions and 13 (21%) with benign lesions [adenoma, selleck chemicals llc focal nodular hyperplasia (FNH), simple cysts]. Twenty-one patients underwent major resections (33.9%) (i.e. removal of three segments or more) and 41 (66.1%) minor hepatic resections.

Results: Median blood loss was 260 ml. The median total operative time was 150 min and median transection time was 35 min. No patient required more than 2 days of intensive care unit (ICU) treatment. The median hospital stay was 8 days. Surgical complications included two (3%) cases of bile leak, two (3%) cases of pneumonia, two (3%) learn more cases with wound infection and two (3%) cases with pleural effusion. The peri-operative

mortality was zero. In a 30-month median follow-up, all patients with benign lesions were alive and free of disease. The 3-year disease-free survival

for patients with HCC was 61% (57% for patients with colorectal metastases) and the 3-year survival 72% (68% for patients with colorectal metastases).

Conclusion: Stapler-assisted liver resection is feasible with a low incidence of surgical complications. It can be used as an alternative for parenchyma transection especially in demanding hepatectomies for elimination of selleck chemical the operating time and control of bleeding.”
“BACKGROUND: The aim of this study was to design and validate a heart donor score that reflects experts’ perceived risk of allograft failure.

METHODS: All heart donors reported to Eurotransplant between January 1, 2005 and December 31, 2008 (N = 4,110) were used to create a donor score. Based on observed discard rates and using multivariate regression, points were assigned for the following donor factors: age; cause of death; body mass index (BMI); diabetes mellitus (DM); duration of ICU stay; compromised history (drug, abuse, sepsis, meningitis, malignancy, HBsAg(+) or anti-HCV+); hypertension; cardiac arrest; echocardiography; coronary angiogram; serum sodium; and noradrenaline and dopamine/dobutamine doses. The donor score was obtained by adding all points. All heart donors reported to Eurotransplant in 2009 were included to validate the score (N = 885).

RESULTS: All donor factors, except BMI, DM and duration of ICU stay, significantly predicted discard.

In other diseases, stigma is known to have a negative impact on h

In other diseases, stigma is known to have a negative impact on health status and QOL and be amenable to intervention. This is the first study to compare levels of lung cancer stigma (LCS) and relationships between LCS, depression, and QOL in ever and never smokers.

Method: A total of 192 participants with a self-report diagnosis of lung cancer completed questionnaires online.

Results: Strong associations in the expected directions, were found between LCS and depression (r = 0.68, p < 0.001) and QOL (r = 0.65, p < 0.001). No significant differences were found

in demographic characteristics or study variables between Selleckchem Bioactive Compound Library ever smokers and never smokers. A simultaneous multiple regression with 5 independent variables revealed an overall model that explained 62.5% of the total variance of QOL (F5,168 = 56.015, P < 0.001).

Conclusions: After removing age, gender, and smoking status, depression explained 22.5% of the total variance of QOL (F4,168 = 100.661, p < 0.001). It is expected that depression and LCS would share some of the explanation of the variance of QOL, the correlation between LCS and depression is 0.629 (p < 0.001), however, LCS provides a unique and significant explanation of the variance of QOL over and above that of depression, age, gender, and smoking status, by 2.1% (p < 0.001). selleck compound (C) 2011 Published by Elsevier Ltd.”
“Hereditary hemochromatosis (HH) is a genetic disorder of

iron metabolism. It is an uncommon indication for liver transplantation (LT). It has been suggested that patients who undergo LT for cirrhosis related to HH have higher morbidity and mortality from cardiac, infectious and malignant complications. The purpose of this retrospective review was

to determine whether these observations hold true in the current era. We analysed the data of 22 patients who had LT for HH from 1996 to 2007 at our center. Thirteen patients had LT for complications of end-stage liver disease, seven for hepatocellular carcinoma (HCC) and two for subacute liver failure. Cofactors promoting liver disease were identified in 15 patients. Ten patients had iron reduction with venesection before transplantation. Patient and graft survival at 1 and 5 years were 80.7%, and 74% respectively. There Selleck GM6001 were seven deaths after a median follow up of 46 months either because of multiorgan failure, or caused by HCC recurrence. Bacterial infections were the commonest cause of morbidity. Patients with HH remain at a higher risk of developing HCC. Infectious complications are common. Iron reduction with preoperative venesection reduces the risk of cardiac and infection complications postoperatively. Improved survival post-LT reflects changes in selection, disease modification through venesection, and improvement in immunosuppression.”
“Aggressive behavior is a major concern in mental health and criminal justice settings.

Such diminished social vigilance may be an adaptive response to a

Such diminished social vigilance may be an adaptive response to affiliative social interactions because it frees affentional resources for the pursuit of other goals. Finally, we predict that OT may mediate other behavioral consequences of social interactions, such as reduced predator vigilance, and argue that this is a rich avenue for future behavioral and neurobiological study.”
“BACKGROUND: Aqueous phase FischerTropsch (FT) effluents co-produced with hydrocarbons in the FT process contain various water-soluble oxygenates, e.g. carboxylic acids, HSP inhibitor alcohols. Purification of the FT aqueous phase is important from

the viewpoint of effective resource utilization and environmental stewardship. In this work, an aqueous-phase hydrodeoxygenation process was investigated for the degradation of FT aqueous phases.

RESULTS: The Ru/AC catalyst was determined to be the most active catalyst. The key parameters, i.e. temperature, pressure, weight hourly space velocity and Ru loading, were comprehensively optimized. Under optimal conditions, ca 98% of the oxygenates were converted to C-1 similar to C-6 alkanes. The degraded water had no odour, a neutral pH, and as low as 1000 mg L-1 chemical oxygen demand. The Ru/AC catalyst exhibited long-term stability ( 1300 h) and no ruthenium

leaching. A reaction pathway is proposed for this process in which the carboxylic acids are hydrogenated to alcohols via the formation of aldehydes. Alcohols and aldehydes are then converted to methane and HSP990 solubility dmso alkanes of one carbon atom less than the substrate through C-C bond cleavage.

CONCLUSIONS: This process is effective for treating FT aqueous phase effluent, and holds great

promise for industrial applications due to its high efficiency, simplicity and stability. (C) 2011 Society of Chemical Industry”
“With the accumulation of our knowledge about how memories are formed, consolidated, retrieved, and updated, neuroscience is now reaching a point where discrete memories can be identified and manipulated at rapid timescales. AZ 628 chemical structure Here, we start with historical studies that lead to the modern memory engram theory. Then, we will review recent advances in memory engram research that combine transgenic and optogenetic approaches to reveal the underlying neuronal substrates sufficient for activating mnemonic processes. We will focus on three concepts: (1) isolating memory engrams at the level of single cells to tag them for subsequent manipulation; (2) testing the sufficiency of these engrams for memory recall by artificially activating them; and (3) presenting new stimuli during the artificial activation of these engrams to induce an association between the two to form a false memory.