, 2002 and Noble, 2003) For DRD4, it has been suggested that

, 2002 and Noble, 2003). For DRD4, it has been suggested that Lapatinib clinical trial carrying the 7R allele is particularly associated with one’s likelihood to experience craving for alcohol, rather than with more general alcohol phenotypes

(Hutchison et al., 2002). A second important issue involves the reference groups used, e.g. those adolescents that did not use alcohol or cannabis. By comparing regular users to abstainers, we tried to minimize the possibility that alcohol- or cannabis use related phenotypes were included in the comparison groups. However, because genetic effects on dopamine functioning have been associated with a broad range of reward-related disorders (Hyman et al., 2006), the absence of significant differences between regular users and abstainers

might be due to the inclusion of adolescents with Temsirolimus clinical trial reward-related phenotypes in the comparison groups. However, Sakai and colleagues assessed the direct effect of DRD2 TaqIA on early onset alcohol use disorders in an adolescent sample with a high prevalence of comorbid cannabis use disorder and conduct disorder. Even when controls were selected for the absence of other substance use disorders and conduct disorder, no significant association between the A1 allele and early onset alcohol disorder was found (Sakai et al., 2007). We hypothesized that the effects of parenting would be moderated by the effects of the genetic risk markers in DRD2 and DRD4, in a way that adolescent carriers of these risk markers would be most vulnerable to the influence of less optimal parenting. We did not find support for this hypothesis. Except for an inverse and surprising association between L-DRD4 and parental Oxalosuccinic acid emotional warmth, indicating that higher levels of emotional warmth are associated with an increased risk of regular alcohol use in carriers of the L-DRD4,

parenting did not moderate the actual expression of a genetic predisposition in regular alcohol or cannabis use. While we do not know about previous studies reporting on these specific gene by parenting interactions with respect to cannabis use, findings by van der Zwaluw et al. indicate that low parental rule-setting towards alcohol consumption is associated with more alcohol use over time, particularly in adolescents that carry the A1 allele (van der Zwaluw et al., 2009). This inconsistency with our findings might be explained by the difference between the studies in alcohol-related phenotypes used (regular alcohol use versus frequency of alcohol consumption). Alternatively, we suggest that substance-specific rule-setting might be more strongly associated with subsequent adolescent substance use when compared to general parenting behaviors, and might therefore more easily trigger the actual expression of a genetic predisposition. Nonetheless, our findings did provide support for risk enhancing effects of parental rejection and overprotection, and a risk buffering effect of emotional warmth.

Taken together, these defects confirm that B3gnt1 and ISPD functi

Taken together, these defects confirm that B3gnt1 and ISPD function in the same genetic pathway to regulate dystroglycan glycosylation in vivo, and establish B3gnt1LacZ/M155T Screening Library clinical trial and ISPDL79∗/L79∗ mice as mouse models of dystroglycanopathy. The defects observed in B3gnt1, ISPD, and dystroglycan mutants suggests a role for dystroglycan in mediating axon guidance in vivo. The axons of both the descending hindbrain projections and the dorsal funiculus extend along the basal surface of the hindbrain and spinal cord, respectively, suggesting

that dystroglycan may be required in the hindbrain and spinal cord for the proper development of these axonal tracts. In contrast to the well-characterized role of dystroglycan in the developing cortex, its function in the spinal cord is unclear. Similar to the developing cortex, levels of total dystroglycan protein in the spinal cord of B3gnt1LacZ/M155T and ISPDL79∗/L79∗ mutants are normal, while glycosylated alpha-dystroglycan and laminin binding activity are reduced to an undetectable amount ( Figures 3A and 3B). Examination of dystroglycan localization in the spinal cord by immunostaining shows that dystroglycan is enriched in the Ceritinib radial neuroepithelial endfeet, where it colocalizes with several extracellular matrix proteins including laminin, perlecan, and collagen IV to form a continuous

basement membrane surrounding the spinal cord ( Figures 3C and S5A). In B3gnt1LacZ/M155T, ISPDL79∗/L79∗ and Sox2cre; DGF/− embryos, the loss of functional dystroglycan results in the progressive fragmentation of the basement membrane beginning around E11.5 which is accompanied by detachment of radial neuroepithelial endfeet from the basal surface ( Figures S5A and S5B). This fragmentation first appears in the lateral portion of the spinal cord and progresses ventrally and dorsally as the spinal cord continues to develop.

Interestingly, in addition to its localization to the basement membrane surrounding the spinal cord, we found that dystroglycan is enriched in the floor plate, a specialized glial structure in the ventral neuraxis that spans Astemizole the CNS anteroposterior axis from the midbrain to caudal spinal cord (Figures 3C and 3D). The spinal cord floor plate functions both as an organizer of ventral cell fates and as an intermediate target for commissural axons whose cell bodies reside within the dorsal spinal cord. The axons of commissural neurons are initially attracted ventrally to the floor plate by a number of floor plate derived cues, including Netrin, Shh, and VEGF (Charron et al., 2003; Ruiz de Almodovar et al., 2011; Serafini et al., 1996). Once commissural axons reach the floor plate, these attractive cues are silenced and repulsive floor plate-derived cues, including Slits (Long et al., 2004) and Sema3B (Zou et al.

Cooperation extended by all colleagues of

Analytical Rese

Cooperation extended by all colleagues of

Analytical Research Division is gratefully acknowledged. “
“Transdermal drug delivery system (TDDS) is designed Epigenetic signaling pathway inhibitors to deliver a therapeutic agent across the intact skin for both local and systemic effects.1 Transdermal systems include formulations such as ointments, gels, creams, pastes, lotions and the most commonly available transdermal patches. Transdermal patch is a medicated device that delivers drugs through the skin for systemic effects at a programmed and controlled rate.2 The advantages of transdermal drug delivery is, provides controlled release of the drug to the patient and enables a steady blood level profile, avoidance of first-pass hepatic metabolism and helps in the rapid termination of therapy.3 Furthermore, the dosage form of transdermal patch is user friendly, convenient and offers multi-day dosing. Matrix type transdermal formulations have been developed for a number of drugs such as nitroglycerine, ephedrine etc.4 Captopril is an angiotensin converting enzyme inhibitor (ACE) used in the treatment of hypertension, congestive heart failure and myocardial infarction. It has comparatively short elimination half life ranging from 1.6 to 1.9 h, hence requires high oral dosing.5 The impermeability of human skin is a fundamental problem mTOR inhibitor to overcome for the therapeutic use of TDDS. Although many approaches have

been proposed to overcome the difficulties of making the drug penetrate through the tough layers of the stratum corneum, chemical permeation enhancers shown to be the promising agents in facilitating the transportation of drugs across the skin. In the present research work, an effort has been made to develop a suitable matrix type transdermal patches containing captopril by employing hydroxypropyl methylcellulose (HPMC) and polyethylene glycol (PEG) 400 as a film former at different concentrations. Furthermore, in order to improve the skin permeation of captopril, menthol and aloe vera were used as penetration enhancers.

Propylene glycol (PG) employed as a plasticizer and also possess permeation enhancers. Release and permeation profiles of captopril from film preparations were examined in the ex vivo studies GBA3 using a Franz-type diffusion cell. Captopril, HPMC and PEG 400 were purchased from Fisher scientific, Selangor, Malaysia. PG, menthol and aloe vera were purchased from Sigma lab, Selangor, Malaysia. All other Modulators materials used were of analytical grade. Drug samples were characterized by UV spectrophotometer (Perkin–Elmer). Matrix type transdermal patches of captopril were prepared by solvent casting method.6 Polymeric solution were prepared by dissolving the polymers (HPMC, PEG 400) in purified water. Weighed amount of captopril was dissolved in the polymeric solution; propylene glycol (10% w/w) was incorporated as plasticizer followed by penetration enhancer.

The angle of repose was determined by the fixed-based

fun

The angle of repose was determined by the fixed-based

funnel method. Bulk and tapped densities were measured in 10 mL of a graduated cylinder. The cylinder was Venetoclax mouse tapped from a height of 2 inches until a constant volume was obtained. The volume occupied by the sample after tapping was recorded and bulk density, tapped density, Carr’s index and Hausner’s ratio was calculated. Microspheres containing equivalent to 10 mg of drug was allowed to equilibrate in 100 mL of phosphate buffer pH 7.4 for 24 h. The solution was filtered using Whatman filter paper (44). The resulting solution was analyzed using a UV spectrophotometric method at 318 nm in the presence of a blank prepared from microspheres containing all materials except the drug. %Drugentrapment=calculateddrugconcentration/theoreticaldrugconcentration×100

DSC studies were performed using a DSC METTLER Switzerland with thermal analyzer. Accurately weighed samples (about 5 mg) were placed in a sealed aluminum pan, before heating under nitrogen flow (20 mL/min) at a scanning rate of 20 °C per min from 40 to 300 °C. An empty aluminum pan was used as reference. DSC thermograms of pure substances, their physical mixtures and drug-loaded microparticles were recorded. In vitro release study of microspheres was performed in pH progression medium at 37 °C ± 0.5 °C. The drug dissolution test of microspheres was performed by the paddle method INK1197 (USP dissolution apparatus Type II, Electrolab Limited, India). Microspheres equivalent to 100 mg were weighed accurately and put in muslin cloth and tied this to paddle over the surface of 900 mL of dissolution medium. The content was rotated at 100 rpm. The pH of the dissolution medium was kept 1.2 for 2 h using 0.1 N HCl. After 2 h, the pH of the dissolution medium was adjusted to 7.4 with 0.1 N NaOH and maintained up to 8 h. The samples were withdrawn from the dissolution medium at various time intervals using a pipette. The rate of drug release was analyzed using UV spectrophotometer (JASCO, Ahmadabad, India). Design-Expert software (Design Expert trial version 8.0.7.1; State-Ease Inc., Minneapolis, MN, USA) was used. A two-factor

three-level full factorial design was used for systemic study of combination of polymers. Polynomial models including interaction and quadratic much terms were generated for the entire response variables using multiple linear regression analysis (MLRA) approach. The general form of the MLRA model is represented in the equation Y=b0+b1X1+b2X2+b12X1X2Y=b0+b1X1+b2X2+b12X1X2Where Y is the dependent variable; b0 is the arithmetic average of all the quantitative outcomes of nine runs. b1, b2, b12 are the estimated coefficients computed from the observed experimental response values of Y and X1 and X2 are the coded levels of the independent variables. The interaction term (X1X2) shows how the response values change when two factors are inhibitors simultaneously changed.

The enrollment criteria in our study were not restrictive as ment

The enrollment criteria in our study were not restrictive as mentioned in study population

above. Accordingly the difference in enrollment w.r.t. age, severity of AGE and month of enrollment across sites/regions might have led to wide variation in proportion of RVGE across regions. The overall study duration was less than 1 year; therefore annual patterns DAPT chemical structure in the rotavirus strains could not be ascertained. Despite these limits the study has obvious strengths: we used uniform protocol across the sites and well-established central laboratory support for RV diagnosis and typing; we used diary cards and questionnaires to understand the entire spectrum of the disease from its onset and also economic and psychological impact associated with it. We focused the study on RGVE disease in urban private clinics which has previously been under researched. To our knowledge this is the first well designed multicentric study to provide data on RVGE burden in urban private OPD setting among children with AGE in India. We conclude that a high proportion of rotavirus among AGE cases Selleck Verteporfin attend pediatric outpatient clinics in urban areas of India. This is associated with substantial economic and psychological burden caused by RVGE. The results support that

there is definite need of well tolerated and effective rotavirus vaccine for all eligible children in India. All of the authors made contributions to the conception and design of this study analyses, acquisition of data or analysis and interpretation of data. They actively participated in drafting the article or revised it for important intellectual content. The report was critically reviewed and subsequently approved by each co-author. Gajanan S. Namjoshi and Sudhanshu Pandey are employees of MSD. Sudhir Babji is employee of Christian Medical Libraries College, Vellore and has no conflicts to declare. Dr. S.K. Lalwani, Dr. Apurba Ghosh, Dr. Monjori Mitra, Dr. Anupam Sachdeva, Dr. Sundaram Balasubramanian, Dr. Suhas Kulkarni, Dr. V.K. Goyal were investigators in study

and declare that they received investigator’s grant from MSD. The investigators MTMR9 also declare that they have received honoraria and support from MSD and different pharmaceutical companies for their engagement in sponsored promotional and educational activities by the companies. This study was sponsored and funded by MSD Pharmaceuticals Private Limited, Mumbai, India (MSD) (A subsidiary of Merck & Co. Inc., Whitehouse Station, NJ, U.S.A.) which markets RotaTeq® (Rotavirus vaccine, live, oral, pentavalent). The authors thank Dr. Pawan Sharma, Dr. Erukulla Arjun, Dr. K. Siva Rama Prasad, Dr. Ravindra Kumar, Dr. Sonali Palkar for their contribution as investigators in the study. Authors thank The Wellcome Trust Research Laboratory, Department of Gastrointestinal Sciences, Christian Medical College, Vellore, India for its laboratory support.

Samples showing an OD value of >0 150 were reported as positive <

Samples showing an OD value of >0.150 were reported as positive.

An internal control was included in all runs, and the run was repeated if the internal control did not fall in the expected range. Genotyping was performed on the Libraries antigen positive samples. RNA selleck screening library was extracted using the QIAamp Viral RNA Mini Kit. Complementary DNA was synthesized using random primers (Pd(N)6 hexamers; Pharmacia Biotech) and 400 units of Moloney murine leukemia virus reverse transcriptase (Invitrogen Life Technologies) and was used as template for VP7 and VP4 (G and P) typing in PCRs using published oligonucleotide primers and protocols to detect VP7 genotypes G1, G2, G3, G4, G8, G9, G10, and G12 and VP4 genotypes P[4], P[6], P[8], P[9], P[10], and P[11] [2]. Samples which failed to type the first time were confirmed to be rotavirus positive by PCR to detect the VP6 gene. If the VP6 PCR was positive, alternate primer

sets were used to attempt genotyping. Samples which were VP6 negative were re-extracted by Trizol method and subjected to a repeat VP6 PCR to confirm or rule out the presence of rotavirus [7]. A total of 1191 children were recruited from the 3 sites over the study period and rotavirus was detected in 458 children using the antigen detection ELISA, accounting for 39% of the cases of diarrhea. The detection rates of rotavirus varied from 26% in Vellore to 40% in Delhi and 50% in Trichy. The proportion ABT-199 order positive each year did not vary by site, with higher tuclazepam rates in Trichy and lower rates in Vellore in each year of surveillance. Of the children recruited, 60% were male, with mean age of 10.1 months (+SD 7.4) versus 40% female with an average age of 11.6 months (+SD

7.6). The median age of rotavirus positive and negative cases was 10 months. Of the children who tested positive for rotavirus, 63% were less than 1 year of age, 26% 1–2 years of age and 11% between ages of 2 and 5 years. Rotavirus was detected throughout the year from the sites in south India compared to the site in the north India where the rates of detection where much higher during March–April, as compared to the other months (Fig. 1). Of the 458 samples which tested positive by ELISA, genotyping was attempted for 453 strains (98%). Fifty-eight (13%) of the ELISA positive samples were negative on genotyping, and when tested for VP6 gene they were all negative even after re-extraction of samples by another method (Fig. 2a). Of the 395 samples, 96% were G-typed and 91% were P-typed. Both G and P type was obtained for 315 (80%) strains. The most prevalent G and P type combinations were G1P[8] (133/395, 33%), G2P[4] (69/395, 17%) and G9 P[4] (43/395, 11%) (Fig. 2b, Table 1). We detected G12 strains, in combination with P[6] and P[8], from both the north and south Indian sites, with more G12 P[6] strain from north India.

Similar to those in HDL2 patients, the RNA foci were rarely coloc

Similar to those in HDL2 patients, the RNA foci were rarely colocalized with NIs and were colocalized with Mbnl1 (Figure S2B). http://www.selleckchem.com/products/XL184.html Thus, we concluded that BAC-HDL2 mice also recapitulate the phenotype of CUG RNA foci, another

molecular pathological marker for HDL2. One intriguing finding in HDL2 neuropathology is the immunoreactivity of NIs with 1C2, a monoclonal antibody that has relatively high specificity to all expanded neuropathogenic polyQ proteins (Trottier et al., 1995), but can also recognize some normal long polyQ proteins such as TBP as well as some other amino acid stretches such as polyleucine (Dorsman et al., 2002). Because of this latter possibility, the precise molecular nature of the 1C2 immunoreactivity within NIs in HDL2 remains to be clarified. We next asked whether the NIs in BAC-HDL2 mice, like those in HDL2 patients, could be immunostained with 1C2. By using a sensitive antigen retrieval technique (Osmand et al., 2006) we were able to detect 1C2-immunoreactive NIs in 12-month-old BAC-HLD2

brains that are unlike the faint diffuse nuclear staining found in the trans-isomer datasheet wild-type controls (Figure S3A). Such 1C2 (+) NIs were not detected at 1 month old, but could be detected at 3 months old and became progressively enlarged at 6 and 12 months old (Figures S3A and S3C). Finally, double immunofluorescent staining revealed that 1C2-immunoreactive NIs colocalized with ubiquitin-positive NIs (Figure S3B), suggesting that the composition of NIs in BAC-HDL2 mice is quite similar to those described in HDL2 patients. To provide further evidence that BAC-HDL2 NIs contain an expanded polyQ protein, we used another monoclonal antibody, 3B5H10, which has been shown to be specific to the expanded Liothyronine Sodium polyQ epitope in all known polyQ disorders (Brooks et al., 2004). Immunostaining with 3B5H10 after antigen retrieval revealed that NIs in 12-month-old BAC-HDL2 cortices and striatum were prominently stained with this expanded polyQ-specific antibody (Figure 3). No such 3B5H10 (+) NIs were detected in the brains of wild-type control littermates at 12 months old (Figure 3). Importantly, the distribution of

3B5H10-immunoreactive NIs in BAC-HDL2 brains is strikingly similar to that of patients, with prominent levels of NIs in the cortex (the upper cortical layers more than the deep cortical layers), hippocampus, and amygdala, decreased abundance in the striatum, and very few if any NIs detected in the cerebellum, thalamus, and brain stem (Figure 4 and data not shown). Taken together, our neuropathological studies with both 1C2 and 3B5H10 antibodies demonstrated that the NIs found in BAC-HDL2 brains recapitulate the patterns seen in HDL2 patients. Furthermore, an expanded polyQ protein is probably a component of such NIs. Because pathogenesis of HDL2 has been linked to the expansion of CTG/CAG repeats at the human JPH3 locus ( Holmes et al.

I think he liked

I think he liked selleck kinase inhibitor doing difficult things. He learned Morse code so that he could become a licensed HAM radio operator; I remember when he was studying hard for his HAM license, practicing Morse code constantly so he could send fast enough to qualify

for some level. The only other person in our department who shared this passion was the machinist Mike LaFratta, and the two of them, grown men, would gleefully compete with each other as to who had made contact the farthest away. David loved music, and I understand he was an accomplished musician, playing piano and flute constantly and even going to a music camp for several summers. He was always trying to get me to appreciate the complexity of the Goldberg Variations, despite the fact that I am tone deaf; over the years he gave me at least three copies of it. For decades David and Torsten, and later David and I, would use a heavy cumbersome slide projector to project stimuli on a screen in order to stimulate cells in the visual system. David and Torsten first used brass squares with small holes drilled in them (David liked to machine

brass) to make white Ibrutinib cell line spots or glass slides with bits of black paper glued onto them to make black spots. It was such a slide that they were putting into and out of the slide projector that led to their discovery of orientation-selective cells. Glass slide with a spot pasted on it to generate dark spots on the screen. This is probably the slide that Hubel and Wiesel were using when they discovered orientation-selective cells. David never threw anything out. David had keen powers of observation, and the drive to makes sense of his observations. We kept voluminous notes describing everything we observed about every cell we recorded from, and David insisted that we also take note of what we had to eat (back then nobody thought twice about eating in the lab, and of course you had to eat several times

during those marathon experiments), and who might have stopped by to visit. He thought recording everything helped jog memory when it turned out something might be important that you had not considered so at the time. I looked over some of our old lab notebooks and found descriptions of oriented cells, color cells, pizzas, directional cells, and discussions with various people in the others department. I found a record from about 26 years ago when I was 9 months pregnant that has in the margin a list of numbers, of decreasing intervals, and then the handwriting switches from mine to David’s, and it says “M to PBBH” (Peter Bent Brigham Hospital), and he continues to map out receptive fields by himself, for the rest of the night. David felt strongly that science writing should be articulate and interesting. He railed against stuffy writing, like using “however” to mean “but,” and he recommended Fowler’s Modern English Usage to everyone.

That is, all 119 expecters, at the very least, endorsed one or mo

That is, all 119 expecters, at the very least, endorsed one or more of these seven items: headache, anxious or worried, depressed, neck pain, problems sleeping, back pain, and jaw pain. A

total of 59 of 100 new subjects (age 32.5 ± 9.6 years, 52% female), given the 56-item symptom expectation checklist Lumacaftor were expecters. These 59 subjects were also correctly identified 1-week later as expecters on the shortened (7-item) symptom expectation checklist comprised of the above-mentioned seven items, and none of the responses on the shortened (7-item) symptom expectation checklist identified expecters that were not already detectable from the 56-item symptom expectation checklist. A total of 56 CP-868596 datasheet of 100 additional subjects (age 34.8 ± 7.8 years, 52% female), given the shortened (7-item) symptom expectation checklist were expecters. These 56 subjects were also correctly identified 1 week later as expecters on the 56-item symptom expectation checklist, and none of the responses on the 56-item symptom expectation checklist identified expecters that were not already detectable from

the shortened (7-item) symptom expectation checklist. Education levels were similar between all groups. This study shows that a previously utilized 56-item symptom expectation checklist can be reduced to a shortened (7-item) symptom expectation checklist and still capture those individuals who hold the expectation that whiplash injury is likely to result in chronic symptoms. The shortened (7-item) symptom expectation checklist is comprised of these items: headache, anxious or worried, depressed, ever neck pain, problems sleeping, back pain, and jaw pain. These are symptoms commonly reported after whiplash injury. There are limitations to this study. The sample sizes are relatively small, and do not reflect a population-based survey. Nevertheless,

the subjects provide a wide range of education levels and both genders are included. Previous studies have found that beliefs about injuries are not generally affected by age, gender, education, or previous injury experience.12 It is clear that expectations of chronic pain and other symptoms after whiplash injury are highly prevalent, even in those who have not experienced the disorders before. These findings have direct and important clinical interventions. Expectations for type and duration of symptoms exist prior to the injury. Whiplash injury is seen in the general public as often having a poor prognosis, frequently leading to chronic symptoms.12 It seems likely that these prior beliefs are influential in the expectations individuals form for their own recovery after an actual injury;1 and that these expectations for recovery are modified by the immediate injury experience (for example initial pain intensity and extent), as well as by early experiences with health care professionals.

Both cocktail solutions restored the elevated global [Ca2+]i resp

Both cocktail solutions restored the elevated global [Ca2+]i responses and restored the NFATc1 nuclear translocation induced by high-K+ stimulation (Figure 9E, n = 12; Figure S1C, n = 6). Such data are summarized in Figures 9G and 9H (for statistics, see Supplemental Information). Taken together, our data are best explained by such local Ca2+i signals occurring

in microdomains containing AKAP79/150-orchestrated Ca2+-binding molecules, such as CaN and CaM, and L channels, which function as the activity reporter that links neuronal activity with NFAT-mediated Paclitaxel supplier transcriptional regulation (see Discussion). IM amplitudes and the expression level of KCNQ2 and KCNQ3 transcripts were also assayed under these same conditions. Consistent with the EGFP-NFATc1 translocation results, there was no enhancement of IM amplitudes in WT SCG neurons that had been stimulated with zero Ca2+-added (0.71 ± 0.09 pA/pF, n = 10), or nifedipine-added 50 K+ solutions (0.81 ± 0.05 pA/pF, n = 9), compared with neurons stimulated under regular Ringer’s solution (0.87 ± 0.05 pA/pF, n = 18) ( Figures

10A and 10B). qPCR was also performed from WT SCG neurons 7 hr after perfusion of regular Ringer’s, 50 K+, 50 K+ with CsA, or 50 K+ with nifedipine IWR 1 solutions for 15 min. We detected significant increases in the amount of both KCNQ2 and KCNQ3 mRNA in neurons depolarized by 50 K+ (3.2 ± 0.8 and 3.9 ± 0.7, n = 4; p < 0.01). This elevated Rolziracetam expression of KCNQ2 and KCNQ3 mRNA was suppressed when CsA (1.05 ± 0.20 and 1.41 ± 0.15, n = 4) or nifedipine (1.25 ± 0.28 and 1.61 ± 0.50, n = 4) was present during the stimulation ( Figure 10C). Thus, removal of external Ca2+, blockade of CaN, or addition of nifedipine during stimulation eliminates NFATc1 nuclear translocation and augmented KCNQ2/3 mRNA and IM amplitudes, suggesting the critical role of CaN and L-type channels for transcriptional regulation of M channels. Our discovery that M-channel

transcription is regulated by neuronal activity through NFAT/CaN signaling in sympathetic neurons led us to think that this may generalize throughout the nervous system to limit neuronal hyperexcitability. Thus, we measured the relative expression level of KCNQ2 and KCNQ3 transcripts in a pathological animal model of neuronal hyperexcitability, chemoconvulsant-induced seizures in mice. As the part of the brain often serving as the focal point for dangerous human seizures, we focused on the hippocampus. We used the pilocarpine as well as kainic acid (KA) convulsant-seizure models of inducing status epilepticus ( Leite et al., 2002), which corrects for any confound of altered M currents from muscarinic agonist (pilocarpine), rather than from hyperactivity.