The library can be used to screen for specificity

of T ce

The library can be used to screen for specificity

of T cell lines or hybridomas. Furthermore, this library has potential uses in SEREX analysis of autoantibody reactivity. The cholangiocyte-specific cDNA library is a powerful tool for the identification of target antigens in murine inflammatory cholangiopathies and is available as a shared resource. “
“Department of Medicine II, Saarland University Medical Center, Saarland University, RG7204 mw Homburg, Germany Alterations in apical junctional complexes (AJCs) have been reported in genetic or acquired biliary diseases. The vitamin D nuclear receptor (VDR), predominantly expressed in biliary epithelial cells in the liver, has been shown to regulate AJCs. The aim of our study was thus to investigate the role of VDR in the maintenance of bile duct integrity in mice challenged with biliary-type liver injury. Vdr−/− mice subjected to bile duct ligation (BDL) displayed increased liver damage compared to wildtype BDL mice. Adaptation to cholestasis, ascertained by expression of genes involved in bile acid metabolism and tissue repair, was limited in Vdr−/− BDL mice. Furthermore, evaluation of Vdr−/− BDL mouse liver tissue sections indicated altered E-cadherin staining associated with increased SAHA HDAC in vitro bile duct rupture. Total liver protein analysis revealed

that a truncated form of E-cadherin was present in higher amounts in Vdr−/− mice subjected to BDL compared to wildtype BDL mice. Truncated E-cadherin was also associated with loss of cell adhesion in biliary epithelial cells silenced for VDR. In these cells, E-cadherin cleavage occurred together with calpain 1 activation and was prevented by the silencing of calpain 1. Furthermore, VDR selleck products deficiency led to

the activation of the epidermal growth factor receptor (EGFR) pathway, while EGFR activation by EGF induced both calpain 1 activation and E-cadherin cleavage in these cells. Finally, truncation of E-cadherin was blunted when EGFR signaling was inhibited in VDR-silenced cells. Conclusion: Biliary-type liver injury is exacerbated in Vdr−/− mice by limited adaptive response and increased bile duct rupture. These results indicate that loss of VDR restricts the adaptation to cholestasis and diminishes bile duct integrity in the setting of biliary-type liver injury. (Hepatology 2013;58:1401–1412) “
“This chapter contains sections titled: Introduction Definition Epidemiology Pathogenesis Diagnosis Treatment Screening and surveillance Summary of practice guidelines Conclusion References “
“Ingestion of foreign bodies (FBs) in the upper esophagus is common in South China. It is difficult to manage because of limited working space and inadequate visual field in this area. This randomized, controlled study aimed to evaluate the usefulness of a transparent cap in the endoscopic management of FBs in the upper esophagus.

Compared to patients with active HCV/ALD, NASH patients

w

Compared to patients with active HCV/ALD, NASH patients

were older, were more often female, had larger BMI at HCC diagnosis, and more frequently had DM, dyslipidemia, and the metabolic syndrome (Table 1). Hepatic synthetic function at HCC presentation (measured by bilirubin, albumin, and international normalized ratio [INR] levels) was worse in patients with HCV/ALD. Ascites was also more common among HCV/ALD patients. MELD scores were slightly higher among HCV/ALD patients. There were no differences in rates of previous TACE or Y-90 treatments or previous surgical procedures. HCV/alcoholic patients less often underwent hepatic resection and more often underwent liver transplantation. Though the number of tumors was greater in HCV/ALD patients, there were no differences in size of largest tumor, frequency of satellite lesions, incidence of T3/4 disease, check details tumor differentiation, rates of macro-/microvascular invasion, and pathologic nodal or metastatic disease. In the background liver, steatosis, lobular Protein Tyrosine Kinase inhibitor inflammation, and hepatocyte ballooning were all more extensive in NASH specimens compared to HCV/ALD specimens.

Correspondingly, the median NAS7 was greater in NASH specimens. Though the majority of patients in each group had bridging fibrosis or cirrhosis on pathological examination, more NASH patients did not have end-stage fibrosis (28.9% versus 6.2%; P < 0.001). Similar differences in demographics, comorbid conditions, active HCV infection, barometers of hepatic synthetic function, MELD score and histologic markers of steatohepatitis,

were present in subgroups of patients who underwent hepatic resection and/or ablation and liver transplantation (Supporting Tables 1 and 2). More NASH patients who underwent hepatic resection and/or ablation did not have end-stage fibrosis compared to HCV/ALD counterparts (41.6% versus 12.7%; P = 0.002). Table 2 summarizes comparisons of demographics, clinicopathologic tumor characteristics, and curative treatments between NASH patients with (n = 23) and without (n = 29) metabolic syndrome. Patients with metabolic syndrome had a higher frequency of DM, hypertension, and dyslipidemia. No NASH patients with selleck products metabolic syndrome had coexistent HCV infection. There were no significant differences in preoperative alpha-fetoprotein (AFP), albumin, bilirubin, and INR levels, types of curative treatments, number or size of largest HCC tumors, or histopathology of HCC or the background liver between NASH patients with and without metabolic syndrome. Twenty of fifty-two NASH patients (38.5%) had neither HCV nor metabolic syndrome. Median BMI of these patients was 30.1 kg/m2 (range, 26.5-32.6). Sixty percent were female and 30.0%, 45.0%, and 15.0% had DM, hypertension, and dyslipidemia, respectively.

PHS 2010-05-103) Mice were infected with O viverrini by feeding

PHS 2010-05-103). Mice were infected with O. viverrini by feeding 50 intact, viable metacercariae to each mouse by way of an orogastric tube. Mta1−/− and Mta1+/+ mice were bred in our laboratory as described.23, 28 Seven mice of each genotype, Mta1−/− and Mta1+/+, age- and sex-matched per group, were infected and included in the investigation. Infected mice and control noninfected mice were euthanized

23 days after infection by way of overdose with pentobarbital sodium plus phenytoin sodium (Euthasol, Virbac, Fort Worth, TX). At necropsy, blood for serum was removed by way of cardiac puncture, after which the liver, spleen, kidneys, lungs, and bladder were removed from the mouse. About half of each of the solid GDC-0973 in vivo organs were stored by snap freezing them in liquid N2, and the remainder were fixed and stored in 4% formalin in phosphate-buffered saline (PBS).

The investigation of O. viverrini infection of these mice was undertaken with the approval of the Institutional Animal Use and Care committee of the George VEGFR inhibitor Washington University. An indirect enzyme-linked immunosorbent assay (ELISA) was used to measure levels of immunoglobulin G (IgG) to an O. viverrini soluble adult worm preparation produced as described.19 A pool of positive control sera was derived from equal portions of sera from each genotype at 23 days after infection. A pool of negative control sera was sourced from the age- and sex-matched mice without any other apparent infection. PolySorp (Nalge, Nunc International, Rochester, NY) 96-well microtiter plates were coated with 100 μL/well of 5 μg/mL of soluble adult worm antigen, prepared from adult O. viverrini worms in carbonate-bicarbonate buffer (pH

9.6), sealed, and incubated overnight see more at 4°C. Plates were washed three times with PBS (pH 7.2) and blocked with 100 μL/well of 3% bovine serum albumin (BSA) (Sigma, St. Louis, MO) diluted in PBS (pH 7.2). Control and experimental serum samples were diluted 1:4,000 in PBS (pH 7.2), and 100 μL was added to each well of the microtiter plate in duplicate. The plates were sealed and incubated overnight at 4°C and then washed three times with PBS with 0.05% Tween 20 (pH 7.2). A biotinylated goat anti-mouse IgG antibody (Vector Laboratories Inc., Burlingame, CA) was used at a 1:5,000 dilution in 3% BSA and PBS and applied 100 μL/well and then incubated for 90 minutes at room temperature. After incubation, the plates were washed with PBS with 0.05% Tween 20 and incubated with a 1:1,000 dilution of horseradish peroxidase–conjugated streptavidin (GE Healthcare, Buckinghamshire, UK) in 3% BSA and PBS for 60 minutes at room temperature in the dark. The plates were incubated in the dark at room temperature for 30 minutes with o-phenylenediamine dihydrochloride.

1) What are the potential clinical implications of these finding

1). What are the potential clinical implications of these findings? Cirrhosis is a major precursor phenotype to the development of hepatocellular carcinoma (HCC), and telomerase activity is typically reactivated during liver carcinogenesis. Are patients with these TERT and TERC mutations more or less check details likely to develop HCC

after developing cirrhosis? The prevalence of these TERT and TERC mutations is relatively low, representing 7.5% of patients in the Calado et al. study and 3.1% of patients in the Hartmann et al. study. Although their prevalence is low and they, therefore, may not be a major contributing factor to cirrhosis at the population level, the identification of these mutations raises important questions about our clinical approach to patients with cirrhosis and our conceptual view CH5424802 of risk of cancer. For example, are there predisposing mutations for cirrhosis in other genes involved in the maintenance

of telomere function, such as the genes for the other telosome components, including POT1 (protection of telomeres 1 homolog), ACD/TPP1 (adrenocortical dysplasia homolog), TINF2/TIN2 (TERF1-interacting nuclear factor 2), TERF1/TRF1 (telomeric repeat binding factor [NDMA-interacting]1), TERF2/TRF2, and TERF2IP/RAP1 (telomeric repeat binging factor 2, interacting protein), and interacting proteins such as DKC1, NOLA1, NOLA2, and NOLA3? Should assays of telomerase gene mutations be used as a stratification factor for selecting patients for treatment of their liver disease, given the presumption that they will be more likely to develop progressive fibrosis? Or, should these assays be used for stratifying patients in clinical trials of antifibrotic selleck agents to reduce unrecognized bias? It has been recognized for a number of years that there is a familial predisposition to HCC; could this be related to germline transmission of telomerase gene mutations? There is also the clinical

observation that a subgroup of patients with cirrhosis will develop HCC relatively early in the natural history of cirrhosis, when they still have Child-Pugh class A liver dysfunction, whereas others will develop HCC at more advanced stages of liver dysfunction. Intriguingly, many individuals progress through the natural history to advanced end-stage liver disease without developing HCC; therefore, are they in some way protected from or less susceptible to carcinogenesis? The findings of the studies by Calado et al. and Hartmann et al. are important because they provide a new perspective on these questions and raise further questions that should be elucidated through future research.

1) What are the potential clinical implications of these finding

1). What are the potential clinical implications of these findings? Cirrhosis is a major precursor phenotype to the development of hepatocellular carcinoma (HCC), and telomerase activity is typically reactivated during liver carcinogenesis. Are patients with these TERT and TERC mutations more or less Erismodegib ic50 likely to develop HCC

after developing cirrhosis? The prevalence of these TERT and TERC mutations is relatively low, representing 7.5% of patients in the Calado et al. study and 3.1% of patients in the Hartmann et al. study. Although their prevalence is low and they, therefore, may not be a major contributing factor to cirrhosis at the population level, the identification of these mutations raises important questions about our clinical approach to patients with cirrhosis and our conceptual view Ruxolitinib of risk of cancer. For example, are there predisposing mutations for cirrhosis in other genes involved in the maintenance

of telomere function, such as the genes for the other telosome components, including POT1 (protection of telomeres 1 homolog), ACD/TPP1 (adrenocortical dysplasia homolog), TINF2/TIN2 (TERF1-interacting nuclear factor 2), TERF1/TRF1 (telomeric repeat binding factor [NDMA-interacting]1), TERF2/TRF2, and TERF2IP/RAP1 (telomeric repeat binging factor 2, interacting protein), and interacting proteins such as DKC1, NOLA1, NOLA2, and NOLA3? Should assays of telomerase gene mutations be used as a stratification factor for selecting patients for treatment of their liver disease, given the presumption that they will be more likely to develop progressive fibrosis? Or, should these assays be used for stratifying patients in clinical trials of antifibrotic check details agents to reduce unrecognized bias? It has been recognized for a number of years that there is a familial predisposition to HCC; could this be related to germline transmission of telomerase gene mutations? There is also the clinical

observation that a subgroup of patients with cirrhosis will develop HCC relatively early in the natural history of cirrhosis, when they still have Child-Pugh class A liver dysfunction, whereas others will develop HCC at more advanced stages of liver dysfunction. Intriguingly, many individuals progress through the natural history to advanced end-stage liver disease without developing HCC; therefore, are they in some way protected from or less susceptible to carcinogenesis? The findings of the studies by Calado et al. and Hartmann et al. are important because they provide a new perspective on these questions and raise further questions that should be elucidated through future research.

ligulata from Japan differed genetically from D ligulata isolate

ligulata from Japan differed genetically from D. ligulata isolates from Europe, South America, New Zealand, or the northeast Pacific (Peters et al. 1997). In the present work, we have examined more specimens from Japan and more genetic markers to confirm the distinctness of the Japanese entity, which

justifies its description as a different species. Desmarestia dudresnayi J.V. Lamouroux ex Léman is a little-known ligulate taxon distributed in cold to warm-temperate regions of Europe, where it is rare and confined to deep water. It is broad-bladed (>25 mm width) and sparsely branched or unbranched (Léman 1819, Drew and Robertson 1974, Anderson 1985) and opinions diverge whether it should be regarded as an independent species, a subspecies or form of D. ligulata (Chapman 1972b), or as conspecific with South African D. firma (C. Agardh) Skottsberg (Peters and Breeman 1992). The type Selleckchem PF2341066 locality of RAD001 molecular weight D. dudresnayi is St. Pol de Léon, near Roscoff

in northern Brittany (Sauvageau 1925). So far there have been no culture or molecular studies of this entity, which is of nomenclatural importance because its description predates that of all other unbranched and of most branched species of ligulate Desmarestia. DNA barcoding aims at providing a rapid and unambiguous identification of biological materials, based upon the rapid and cost-effective sequencing of a short strand of DNA typically of the five primer region of cox1 but now extends to other loci (Hebert et al. 2003). In Phaeophyceae, DNA barcoding has been successful in identifying new and cryptic species. Mitochondrial cox1 learn more and the nuclear rRNA ITS have been successful

in identifying many brown algal species belonging to the Laminariales (Lane et al. 2007, Macaya and Zuccarello 2010, McDevit and Saunders 2010) and Fucales (Kucera and Saunders 2008, McDevit and Saunders 2009). The cox1 locus reveals biogeographic patterns and cryptic diversity, but it is not uniformly useful in all Phaeophyceae, such as Macrocystis (Macaya and Zuccarello 2010). The ITS has more variable sites and has proved useful in some genera but there have been difficulties interpreting results due to the presence of indels and genetic introgression (Kucera and Saunders 2008, McDevit and Saunders 2009, 2010). The primary objective of this study was a reassessment of ligulate, acid-producing Desmarestia phylogeny, based on the sequences of multiple and phylogenetically informative markers such as nuclear small subunit (SSU) rDNA and ITS, mitochondrial cox1, plastid psaA (photosystem I P700 apoprotein A1), and ribulose-1,5-bisphosphate carboxylase/oxygenase large subunit (rbcL). Including D. dudresnayi was essential for the revision of this species complex. Our results propose a practical nomenclature following Linnean classification criteria.

Genotype calls have been made by GeneMapper Software (version 4)

Genotype calls have been made by GeneMapper Software (version 4). Allele frequency of each microsatellite marker was calculated manually. Heterozygosity was determined by counting the heterozygotes in the female subset. We have shown that in 253 normal individuals from 20 different ethnic groups

of India, the heterozygosity for the markers ranged from 0.25 to 0.54; and for the entire subset of 102 female samples we could successfully discriminate between the two X-chromosomes using these five markers. These markers could also discriminate between the two X-chromosomes for each of 39 obligate carriers included in this study. In conclusion, this panel of five markers around the F8 locus can be used for carrier detection of HA with higher sensitivity across India Small molecule library datasheet for families affected with the disease. “
“Radiosynovectomy (RS) is a very effective procedure that decreases both the frequency and the intensity of recurrent intra-articular bleeds related to joint synovitis. RS is currently recommended with 90Y for the knees and 186Rh for elbows and ankles. It can also be used in patients with inhibitors with minimal risk of complications. On average, RS has a 75–80% satisfactory outcome in the long term. Such efficacy can be measured clinically

by the decrease in the number ICG-001 cell line of hemarthroses, with complete cessation for several years in some cases. In 20–25% selleck chemical of cases, RS fails to control hemarthroses, but in such cases, it can be repeated (up to three times with 6-month intervals). Global long-term results of treatment with chemical synovectomy (rifampicin and oxytetracycline) seem to be less favorable than with radionuclides (90Y, 32P, and 186Rh). Although the dose of radiation of RS is minimal and neither articular nor systemic neoplastic changes related to RS have been

reported so far, all patients must be counseled about malignancy concerns and given the opportunity to consider risk/benefit ratios. My current recommendation is to use RS in children older than 12 years of age. “
“Summary.  Moroctocog alfa (AF-CC) (Xyntha™, BDDrFVIII) is manufactured by a process designed to enhance the theoretical viral safety profile relative to ReFacto®, its predecessor, and to provide alignment with clinical monitoring by the one-stage clotting assay. To evaluate the efficacy and safety of B-domain-deleted recombinant factor VIII (BDDrFVIII) was given as bolus injection (BI) or continuous infusion (CI) in haemophilia patients undergoing major surgery. BDDrFVIII was administered by BI or CI per investigator discretion peri-operatively for at least 6 days. Thirty patients enrolled and were treated with at least one dose of BDDrFVIII. Twenty-five patients were evaluable for efficacy. Outcomes were favourable against a background of multiple major surgical procedures. All haemostatic efficacy ratings were ‘excellent’ or ‘good’.

But, in most of the cases, it failed due to linkage drag of undes

But, in most of the cases, it failed due to linkage drag of undesirable plant and pod features. Identification of tightly linked molecular markers will help to identify the desirable

recombinants more efficiently. A recombinant inbred line population comprising 164 lines was developed from a cross between a rust-resistant parent VG 9514 and a rust susceptible parent TAG 24. Using a modified bulk segregant analysis, 243 transposable element (TE) primer pairs were screened for putative linkage with rust resistance. Of the 243, 40 TE primer pairs were found polymorphic between parents and two transposable element markers, and TE 360 and TE 498 were found associated with rust resistance gene. Based on genetic mapping, TE 360 was found linked to the rust resistance gene at 4.5 cM distance. Identification Selleck Everolimus of such markers could be applied for marker-assisted selection of rust resistance plants in peanut. “
“Eggplant (Solanum melongena L.) plants with severe leaf mosaic and mottling were found in a kitchen garden near cotton fields in Pakistan. Rolling Circle Amplification products from six of the naturally infected eggplant plants, subjected to PCR, successfully amplified expected products of 2.8 and 1.4 kb using begomovirus and betasatellite-specific primers, respectively. Based on 99% nucleotide sequence identity, the virus was identified as a variant of Cotton leaf curl Burewala virus (CLCuBuV) (GenBank Accession No. HG428709). Likewise,

the sequenced betasatellite with a maximum INCB018424 solubility dmso of 97% nucleotide sequence identity was recognized as a new variant of Cotton leaf curl Multan betasatellite (CLCuMuBMul) (GenBank Accession No. HG428708). selleck products The symptomatic induction of Cotton leaf curl disease in CLCuBuV susceptible cotton genotype CIM-496 by back-indexing further confirmed the presence of CLCuBuV in eggplant. This is the first report of CLCuBuV and its associate betasatellite in naturally infected plants of eggplant. “
“Rice stripe virus (RSV), a member of the genus Tenuivirus, causes

rice stripe disease in East Asia and is one of the most economically important rice pathogens. The pathogenesis of RSV and the molecular basis of plant responses to the pathogen are poorly understood. We investigated the process of RSV infection in Arabidopsis thaliana which is highly susceptible to the virus. A simple inoculation method using viruliferous small brown planthoppers was developed to infect A. thaliana plants with RSV. The symptoms were developed within 2 weeks of inoculation. One month after inoculation, all infected plants showed stunted growth and vein chlorosis in newly emerged leaves. Forty-five days after inoculation, RSV-infected plants showed severely stunted growth and distorted flower stalks. RSV replication in A. thaliana was confirmed using a dot immunobinding assay, reverse transcription-polymerase chain reaction, and a protein gel blot assay. RSV infection strongly induced PR1, PR2 and GST1 but not PDF1.

Thus, patients with continuous headache were excluded Patients w

Thus, patients with continuous headache were excluded. Patients were also excluded if they had used any headache prophylactic medication within 4 weeks prior to start of baseline, or had previous exposure to any

botulinum toxin serotype or a positive urine pregnancy test. Randomization, Stratification, and Study Treatment.— The recruitment period was between January 2006 and July 2007, with a 56-week follow-up period after the last patient was enrolled. Eligible patients were randomized (1:1) in double-blind fashion to onabotulinumtoxinA or placebo. Randomization, which has been previously described,32,33 A-769662 in vitro was stratified in blocks of 4 for each investigator site and by whether or not patients were overusing acute headache pain medication (yes/no) during the 28-day baseline according to protocol-defined frequency of use. Investigators were trained not to enroll patients who frequently used opioids as their acute headache pain medication. OnabotulinumtoxinA 155 U or placebo was administered as 31 fixed-site, fixed-dose injections across 7 specific head/neck muscle areas. At the investigator’s discretion, an additional 40 U could be administered using a “follow-the-pain” strategy. The maximum dose was 195 U across 39 sites. Dosing and results of this study are specific

to the formulation of onabotulinumtoxinA manufactured by Allergan, Inc. Efficacy and Safety Measures.— For the pooled analyses, the primary efficacy endpoint was mean change from baseline in frequency of headache days for the 28-day period ending with week 24.

Secondary efficacy Mitomycin C concentration variables evaluated in the pooled analyses included: frequency of migraine days, frequency of moderate/severe headache days, number of cumulative hours of headache on headache days, proportion of patients with severe (≥60 points) Headache Impact Test (HIT)-6 score,34 frequency of headache episodes, frequency of migraine episodes, and frequency of acute headache pain medication intakes (all categories; referred to hereafter as acute pain medication intakes). Other efficacy analyses included the incidence of patients with a 50% or more decrease from baseline in the frequency of headache days and, separately, headache this website episodes. Additional assessments of disability, functioning, and HRQoL (eg, mean changes in total HIT-6; Migraine-Specific Quality of Life questionnaire [MSQ v2.1]35,36 evaluations) are also reported. All efficacy analyses primarily examined the mean change from baseline for the 28-day period ending with week 24. All efficacy analyses were also analyzed for the medication overuse stratum. These results will be reported elsewhere. Statistical Analysis.— The pooled population sample provided >90% power to detect ≥1.75 between-group difference in mean change from baseline of the primary endpoint (headache days), using a 2-sided alpha = 0.05. The pooled population also had greater power than the individual studies32,33 to identify any safety and tolerability findings.

Thus, patients with continuous headache were excluded Patients w

Thus, patients with continuous headache were excluded. Patients were also excluded if they had used any headache prophylactic medication within 4 weeks prior to start of baseline, or had previous exposure to any

botulinum toxin serotype or a positive urine pregnancy test. Randomization, Stratification, and Study Treatment.— The recruitment period was between January 2006 and July 2007, with a 56-week follow-up period after the last patient was enrolled. Eligible patients were randomized (1:1) in double-blind fashion to onabotulinumtoxinA or placebo. Randomization, which has been previously described,32,33 Antiinfection Compound Library chemical structure was stratified in blocks of 4 for each investigator site and by whether or not patients were overusing acute headache pain medication (yes/no) during the 28-day baseline according to protocol-defined frequency of use. Investigators were trained not to enroll patients who frequently used opioids as their acute headache pain medication. OnabotulinumtoxinA 155 U or placebo was administered as 31 fixed-site, fixed-dose injections across 7 specific head/neck muscle areas. At the investigator’s discretion, an additional 40 U could be administered using a “follow-the-pain” strategy. The maximum dose was 195 U across 39 sites. Dosing and results of this study are specific

to the formulation of onabotulinumtoxinA manufactured by Allergan, Inc. Efficacy and Safety Measures.— For the pooled analyses, the primary efficacy endpoint was mean change from baseline in frequency of headache days for the 28-day period ending with week 24.

Secondary efficacy Selleck Tamoxifen variables evaluated in the pooled analyses included: frequency of migraine days, frequency of moderate/severe headache days, number of cumulative hours of headache on headache days, proportion of patients with severe (≥60 points) Headache Impact Test (HIT)-6 score,34 frequency of headache episodes, frequency of migraine episodes, and frequency of acute headache pain medication intakes (all categories; referred to hereafter as acute pain medication intakes). Other efficacy analyses included the incidence of patients with a 50% or more decrease from baseline in the frequency of headache days and, separately, headache selleck kinase inhibitor episodes. Additional assessments of disability, functioning, and HRQoL (eg, mean changes in total HIT-6; Migraine-Specific Quality of Life questionnaire [MSQ v2.1]35,36 evaluations) are also reported. All efficacy analyses primarily examined the mean change from baseline for the 28-day period ending with week 24. All efficacy analyses were also analyzed for the medication overuse stratum. These results will be reported elsewhere. Statistical Analysis.— The pooled population sample provided >90% power to detect ≥1.75 between-group difference in mean change from baseline of the primary endpoint (headache days), using a 2-sided alpha = 0.05. The pooled population also had greater power than the individual studies32,33 to identify any safety and tolerability findings.