The subjects were considered to be physically and mentally

The subjects were considered to be physically and mentally

healthy, but no standard questionnaire or scale was used to provide a formal confirmation. Other hormones showed a wide range of secretory patterns, but within the range considered to be normal This was the case with LH, with nocturnal PHA-739358 cell line concentration patterns showing 1 to 6 secretory pulses depending on subject, together with a Inhibitors,research,lifescience,medical 3-fold range in mean LH concentration. These interindividual differences in LH secretion in men were stable over time. Several authors have studied the chronobiology of hormones in normal subjects or in patients in protocols where measurements were repeated. Thus, in 10 normal subjects studied over 24 hours on three occasions, the coefficients of variation of the parameters for melatonin, prolactin, LH, and testosterone secretion varied less within Inhibitors,research,lifescience,medical subjects than between subjects, indicating that the individual secretion patterns were stable over time, particularly with LH,1 as also seen in our subjects. Coincidnt secretory pulses of hormones Hormones that belong to the same endocrine axis are often secreted with similar temporal patterns, for exampie Cortisol and adrenocorticotropic hormone Inhibitors,research,lifescience,medical (ACTH)

or p-endorphin,2 LH and estradiol or progesterone.3 This coincidence in hormone secretory pulses is to be expected.

However, temporal coincidence is also found between Inhibitors,research,lifescience,medical hormones that belong to different axes. Examples are LH and prolactin,4 testosterone and melatonin,5 TSH and leptin,6 LH and leptin in women,7 and the amino acid L-arginine and insulin.8 In addition, more than two hormone secretions can be coupled temporally, as described for Cortisol, leptin, LH, and GH.9 Finally, ultradian coupling can occur between events Inhibitors,research,lifescience,medical that belong to different physiological systems. An illustration is the finding the by Brandenberger11 of the coupling between prolactin and electroencephalographic sleep waves. In this particular case, the coupling was so tight that the normalized hormone concentration and delta wave power (expressed as Z-scores) followed almost exactly the same value versus time curve.9 Ultradian rhythms Ultradian and circadian changes in blood hormone concentrations are an indirect marker of the activity of central nervous system pacemakers, but how biological clocks govern ultradian rhythms of hormone secretion is still not well understood. Gonadotrophin-releasing hormone (GnRH, also called luteinizing-releasing hormone or LHRH) stands as an exception and has been well described for several decades.

The first criteria-based definition of this disorder was proposed

The first criteria-based definition of this disorder was proposed by the RDC. This disorder was shown to aggregate in families, but not in a specific manner.7 Some variants of this disorder also occurred

more commonly than would be expected by chance in families of probands with schizophrenia and other variants in families of probands with affective disorders, and vice versa. The clinical characterization of these variants demonstrated that cosegregation with schizophrenia was preferentially associated with the more chronic, schizophrenia-like schizoaffective Inhibitors,research,lifescience,medical disorder, whereas other subtypes coaggregated preferentially with affective disorders.8 As a consequence, the schizophrenia-like Inhibitors,research,lifescience,medical schizoaffective disorders were distinguished from other schizoaffective disorders, which were subsequently considered to belong to the affective disorders in DSM-III-R and DSM-IV and likewise in ICD-10. Diagnostic definitions ignoring familial-genetic evidence Several studies were recently conducted applying one of the aforementioned criteria of validity to competing diagnostic definitions or diagnostic criteria, particularly with regard to the definition of schizophrenia and psychotic disorders. Twin and family studies focused primarily on the positive/Tasocitinib negative distinction. It was demonstrated that the complex of negative symptoms was fairly consistently associated Inhibitors,research,lifescience,medical with a high familial

similarity, a higher familial loading with psychotic disorders, and a higher genetic load than positive symptoms.9 One twin study even found no genetic influence at all on the occurrence Inhibitors,research,lifescience,medical of positive symptoms (first-rank Schneiderian symptoms), whereas other definitions, including positive and negative symptoms in Inhibitors,research,lifescience,medical the definition of schizophrenia, were associated with at least a moderate degree

of heritability.10 If a classification system relies on the specificity and magnitude of underlying genetic determinants, a redefinition of the concepts of schizophrenia and other psychotic disorders should result from these findings. In contrast to this empirical evidence, Mephenoxalone even the most recent definitions of schizophrenia and psychotic disorders in DSM-III-R, DSM-IV, and ICD-10 give priority to positive symptoms. As an exception, ICD-10 proposes the residual category of latent schizophrenia (schizophrenia simplex), which is only defined by the presence of negative symptoms, in the absence of positive symptoms. The familial-genetic nature of this condition is not widely known, as most research into the genetics of schizophrenia is based on cases with a mixture of positive and negative symptoms. The most distinctive difference between the DSM-III-R, DSM-IV, and ICD-10 classification of schizophrenia is the minimal duration of the disease episodes. ICD-10 requires the presence of symptoms for just 1 month.

The total vibration energy of respiratory sound was high and decr

The total vibration energy of respiratory sound was high and decreased following therapy. This group of patients had the same tidal volumes, ventilation modes and settings before and after clinically improvements. Therefore, these changes were not due to alterations in tidal volumes. There were several limitations to this investigation. Because this was a preliminary study our sample size was small and we may not have been adequately powered for all of our analyses. We did not objectively measure pulmonary edema (e.g. via a pulmonary catheter). In a trial of

critically ill patients, the use of a pulmonary artery catheter (PAC) was associated with increased mortality rates in patients with a lower Inhibitors,research,lifescience,medical severity of illness score while reducing mortality in the most severely

ill [28]. A recently published analysis of 53,312 trauma patients revealed no Inhibitors,research,lifescience,medical beneficial effects of PAC monitoring on mortality in low-risk patients [30-32]. Since low-risk patients are unlikely to derive benefits from PAC monitoring, the use of such invasive monitoring would have placed participants in our investigation at increased and unjustifiable risk. As an alternative to invasive monitoring, we did note negative fluid balances for all CHF participants. Finally, inclusion of participants with pleural effusions may have led to confounding. Since patients Inhibitors,research,lifescience,medical with pulmonary effusion as well as pulmonary edema were pooled with patients who only had pulmonary edema, the possible confounding effects of effusion on the area and vibration energy is not known, although the CHF patients with and without pleural effusion showed similar trends. In most patients, a repeat chest radiograph was not deemed necessary by the physicians. Inhibitors,research,lifescience,medical A pre-study power calculation was not possible due to unknown size of effect of pulmonary edema and treatment on amount and distribution of vibration energy. Conclusions In conclusion, with clinical improvement of acute exacerbation of CHF, there is a more homogenous distribution Inhibitors,research,lifescience,medical of vibration energy of respiratory sound. Respiratory sound analysis is non-invasive and also does not expose the patient to ionizing radiation.

It can be conducted at the bedside and repeat measures Montelukast Sodium are easily obtained. Based on our preliminary findings, this modality may be a useful adjunct to current methods in assessing improvement in acute CHF exacerbations. List of abbreviations CHF: congestive heart failure; ED: emergency department; IQR: interquartile range; PAC: pulmonary artery catheter; REPE: radiographically evident pulmonary edema; SD: standard deviation; VRI: vibration response imaging. Competing interests The authors declare that they have no competing interests. Authors’ contributions ZW and SJ Selleckchem LY335979 carried out the VRI recordings. ZW, SJ and BB worked on the calculations of recordings and data analysis. ZW and SJ drafted the manuscript. BB, KS and KNG revised the manuscript critically for important intellectual content.

While the reliability and validity of self-reported traits is a c

While the reliability and validity of self-reported traits is a concern, particularly for phenome research conducted online,54,55 Web-based assessments provide distinct opportunities for “dynamic phenotyping” based on a P505-15 particular individual’s prior genotype-phenotype associations.56 The multimodal capabilities

of Web-based trait collection instruments, combined with their low cost of implementation at large scales, seem likely to accelerate the ability of studies like the PGP to effectively explore new corners of the human phenome. The PGP is also taking Inhibitors,research,lifescience,medical advantage of recent advancements in health information technologies to assist participants and researchers alike in structuring and accessing the massive amounts of personalized data generated by the project. The emergence of online Personally Inhibitors,research,lifescience,medical Controlled Health Record (PCHR) platforms and other novel tools enables individuals to collect and manage their own health data – including health history, medication, allergy, immunization, Inhibitors,research,lifescience,medical biometric and other data types57,58,59 – and can be developed

for integrated data entry, access and dissemination by both the individual and third-party researchers or data providers, including health care providers. Enviromes The picture of genome and Inhibitors,research,lifescience,medical phenome is incomplete without the envirome. The envirome can be described as the totality of equivalent environmental influences contributing to all disorders and organisms.60 The mode of response of an organism to the environment that is reflected in its phenotype is constrained by its unique set of genetic variations and the environmental influences on gene expression. Inhibitors,research,lifescience,medical Therefore, a

comprehensive approach is required to describe the envirome systematically in conjunction with genome and phenome information. The relevant envirome data is too large and complex to be reported, managed, or analyzed manually. The creation of phenome-genome and genome-envirome networks has been suggested in order to relate Tryptophan synthase phenome and envirome information to potential disease-associated genes.61 Microbiomes Even though microbial cells are estimated to outnumber human cells in a single individual by a factor of ten, we know very little about the microbes that live in and on us, including what mixture of bacteria, viruses, and other micro-organisms constitute a “normal” human microbiome and how those organisms impact different biological states.62 Major efforts such as the Human Microbiome Project are under way to characterize the microbiota at different body sites in humans and to assess how variation in microbial communities is associated with states of health and disease.

The patient was considered as stage IVB Radiological and patholo

The patient was considered as stage IVB. Radiological and pathological examination revealed that the tumor was confined to the vaginal wall (T1) with no regional lymph node metastasis identified (N0). Distant metastasis to the liver was radiologically diagnosed (M1). The patient had a short course of treatment and died postoperatively. Figure 4 Radiographic image of Case 2. Pelvic ultrasound  shows hypoechoic predominantly endoluminal hetergenous  mass measuring

5×4.5×4.8 cm distending the upper vagina. Discussion Inhibitors,research,lifescience,medical Recent studies http://www.selleckchem.com/products/Belinostat.html suggest that non-DES-associated and DES-associated PCCAV have different natural histories.6 The literature lacks information regarding the status of current or past prescription practices of DES in the Far East, Middle East and Africa, including countries such as Saudi Arabia, Yemen and Ethiopia. This lack of information has further limited our knowledge regarding its carcinogenic role in these regions. However according Inhibitors,research,lifescience,medical to the National Drug and Poison Information Center of the Saudi Food and Drug Authority, after a reported relationship of parenatally administered DES to adenocarcinoma, the use of DES during pregnancy was banned in the 1980s.8 There was only one case Inhibitors,research,lifescience,medical of DES-associated PCCAV reported in Saudi Arabia.9 Both patients in our study had no histories of DES exposure which was additionally supported

by the uneventful, normal obstetric histories of their mothers. Specifically Inhibitors,research,lifescience,medical there was no history of miscarriages or premature births which excluded any DES-induced influence. There was also no clinical evidence suggestive of other primary tumors to consider metastasis. A study of 28 cases6 and a few case reports of non-DES-associated PCCA of vagina1,6,10-12and cervix13,14 have been reported over the

past decade. Although DES has reportedly not been used as treatment for threatened abortion in Japan, Inhibitors,research,lifescience,medical at least nine cases of PCCA of the vagina and cervix have been reported over the past two decades.11 Abnormal vaginal bleeding, discharge, dyspareunia and vaginal mass are the most common presentations.1,6 Non DES PCCV shows a bimodal age distribution with the first peak observed at 26 years and the second at 71 years of age.1,6 A different subset of patients with non-DES-associated PCCAV in postmenopausal women and prepubertal girls has also been reported13 with a grave prognosis.6 Gross tumor size varies from microscopic to Dichloromethane dehalogenase 10 cm and is described as either a polypoid, nodular, flat or ulcerated mass. Microscopically this tumor show a predominantly tubulocystic pattern followed by solid and papillary patterns. However, a mixture of types is common. These structures are lined by cuboidal, hobnail or flat cells. Cytoplasmic clearing is due to the presence of glycogen. Cords having eosinophilic cytoplasm may also be present. Nuclear pleomorphism is variable with mitosis usually less than 10/10 high power fields.

As shown in the present study, NG2 glia appeared to increase in

As shown in the present study, NG2 glia appeared to increase in number and to attach intimately to damaged DArgic neurons in the SNpc in the cytokine group. Elevation of PCNA-mRNA may be related to the proliferation of NG2 glia. In contrast to astrocytes, the increase in the occupying area

by NG2 glia and their attachment to DArgic neurons were prominent in the cytokine group, and therefore, it is possible that NG2 glia elicit Inhibitors,research,lifescience,medical neuroprotective effects under the influence of the cytokine mixture. However, NG2 glia did not express receptors for GM-CSF, and IL-3. NG2 glia may respond to IGF-1 and HGF released by microglia. IGF-1 has been shown to be crucial for the survival of NG2 glial cells (Sundberg et al. 2010). NG2 glia express c-Met/HGF receptor, and HGF promotes NG2 glial proliferation (Ohya et al. 2007). In the present study, the cytokine mixture was found to upregulate expressions of IGF-1 and HGF in cultured Inhibitors,research,lifescience,medical microglia and in microglia in the ventral

midbrain. Therefore, the cytokine mixture may stimulate NG2 glial survival and proliferation through IGF-1 and HGF, which is released by microglial cells in the SNpc of the cytokine-treated Inhibitors,research,lifescience,medical rats. In conclusion, this study demonstrated the neuroprotective effects of a cytokine mixture containing GM-CSF and IL-3. A summary of our findings is shown in Figure 9. We propose that 6-OHDA administration into the striatum causes DArgic neurodegeneration in the SNpc and accompanying microglial activation (Fig. 9). The activated microglia produce proinflammatory cytokines that cause further chronic neurodegeneration. This neurodegeneration may also cause further activation of microglia, which in this scenario is not neuroprotective. Thus, a vicious cycle of neuronal degeneration occurs (Levesque Inhibitors,research,lifescience,medical et al. 2010). On the other hand, when the cytokine mixture is injected, DArgic neurons increase Bcl-xL expression, and thus, these neurons avoid degeneration in the face of 6-OHDA FHPI molecular weight toxicity. In this scenario, the microglia become activated and display an activated morphology, similar to that in the saline

Inhibitors,research,lifescience,medical group, but in this case they suppress proinflammatory cytokine expression. The microglia in the cytokine mixture-treated group have enhanced expression of the neuroprotective factors IGF-1 and HGF. IGF-1 and HGF enhances not only the Sclareol viability of neurons but also the survival and production of NG2 glia, which can contribute to neuronal survival. Therefore, it is proposed that this cytokine mixture has neuroprotective properties and could help in the treatment of PD. Figure 9 A summarized scheme based on the present data. 6-OHDA-induced DArgic neurodegeneration accompanies microglial activation. Without the cytokine mixture injection, activated microglia (MG) release the proinflammatory cytokine IL-1β and TNFα, … Acknowledgments We are grateful to Staffs in Animal Center for their gentle care to animals and to M.

However, this PTB-dependent stable complex formation of Dok-7 wi

However, this PTB-dependent stable complex formation of Dok-7 with MuSK is

not prerequisite for Dok-7-mediated activation of MuSK in the heterologous cells or even in cultured C2C12 myoblasts. Interestingly, in addition to the PTB domain, the entire COOH-terminal region, but not PH domain, is also dispensable for MuSK activation in these cells. However, when myotubes were fully differentiated from C2C12 myoblasts, both the PTB domain and the COOH-terminal region were indispensable for MuSK activation and subsequent AChR clustering. The data suggests that a negative regulatory mechanism preventing MuSK activation is established Inhibitors,research,lifescience,medical upon differentiation from myoblasts into myotubes. Note that C2C12 myotube differentiation is accompanied by increasing expression Inhibitors,research,lifescience,medical of MuSK and Dok-7 (14). To counteract the hypothetical negative regulation, Dok-7 may need to be stably complexed with MuSK via the PTB domain and may also need an as yet unidentified function of the COOH-terminal moiety. For example, trace phosphorylation of MuSK in myotubes might allow physical interaction with Dok-7, in turn facilitating dimerization and/or conformational changes in MuSK that are necessary for its sustained activation in myotubes. It has been reported that an Inhibitors,research,lifescience,medical adaptor protein SH2-B, which has the PH and SH2 domains, binds via the SH2 domain to multiple receptor PTKs including insulin receptor (IR) and NGF receptor (TrkA).

In addition, the forced expression of IR and SH2-B in CHO cells enhanced IR-mediated signaling upon stimulation with insulin; however, it did not affect IR activity in the absence of insulin (18). Inhibitors,research,lifescience,medical Similarly, the forced expression of SH2-B in PC12 cells enhanced TrkA-mediated signaling upon NGF treatment, but again it did not affect TrkA activity in the absence of NGF (19). By contrast, Dok-7 does not ON-01910 nmr require Agrin to activate MuSK in myotubes, and furthermore, Dok-7 does not require the PTB domain, which is essential for stable binding with MuSK, to activate MuSK in 293T cells (14). Given that

Agrin requires Dok-7 Inhibitors,research,lifescience,medical to activate MuSK at least in cultured myotubes, Dok-7 appears to be a cytoplasmic activator of MuSK rather than a signal enhancer of it. Increase of expression of both MuSK and Dok-7 upon differentiation of myoblasts into myotubes may trigger the Dok-7-mediated activation heptaminol of MuSK in the central region of the developing skeletal muscle, where preferential expression of AChR, MuSK and Dok-7 together with aneural, Agrin-independent AChR clustering are observed (14). Then, Agrin and Dok-7 may cooperate to induce full activation of MuSK to orchestrate NMJ formation. Since patients with NMJ disorders due to genetic mutations of DOK7 (see below) often only present with symptoms at least 18 months after birth, it suggests that Dok-7-mediated activation is essential not only for NMJ formation but also for its maintenance (20–22). This seems to be consistent with the postsynaptic localization of Dok-7 at fully formed NMJ in adult mice.

When combined with patients’ own requests and family and carer su

When combined with patients’ own requests and family and carer support for such an approach, these factors may amount to a persuasive argument. In our own experience, as described above, the patients responded well to reintroduction of clozapine, in terms of clinical improvements in mental state and reduction in aggression and violence. This is, perhaps, unsurprising given the previous Inhibitors,research,lifescience,medical rapid responses shown by this group of patients. In addition, this admittedly small group of patients have not displayed clinically significant side effects associated with the use of G-CSF and the adverse effects reported in association with clozapine appear to be of

a similar frequency and intensity as Inhibitors,research,lifescience,medical previously described. The authors acknowledge that this is a small case series conducted in the highly specialized environment of a secure psychiatric hospital and, as a result, questions could be raised about the applicability of such an approach in other patient populations. However, the authors contend that it would be difficult to design a randomized controlled

trial to measure the effectiveness of such Inhibitors,research,lifescience,medical a treatment approach for the following reasons: the interventions are novel and unlicensed; the seriousness of the potential risks involved; difficulty in gaining consent from patients (given that they would be at the severe end of the spectrum of psychopathology); and the difficulty of getting an adequate sample size to provide sufficient statistical power. Therefore case reports and Inhibitors,research,lifescience,medical case series, like this one, may provide the only evidence available to clinicians in this area. Conclusion This series builds on a number of previous case reports, in addition to more extensive literature on the use of G-CSF in other fields, which broadly show positive results. Further, more robust, investigations with appropriate methodology would be able to give a clearer picture of the benefits that the authors have Verteporfin observed in the sample patient group. However, because of the practical and ethical

difficulties of designing Inhibitors,research,lifescience,medical such studies (such as a randomized controlled trial) it would be helpful if clinicians who have experience of using G-CSF share their experience with their peers by publishing their findings. The authors are of the opinion that this select group of patients, who have responded Phosphatidylinositol diacylglycerol-lyase to clozapine in the past but experienced neutropenia, are unresponsive to other interventions and remain significantly distressed with poor quality of life and florid psychotic symptoms, and who pose a significant risk to others, should be considered for clozapine rechallenge in combination with G-CSF. Not doing so may mean that these patients are deprived of a potentially effective treatment approach. However, given the risks involved, the authors would advocate that for each individual patient a risk–benefit analysis should be performed, along the lines discussed above.

17,18 In diagnosing PTSD, it is probably safer to not include dis

17,18 In diagnosing PTSD, it is probably safer to not include FTY720 order dissociative amnesia as a potential symptom. Relevant to the interplay with TBI is the proposed revision of PTSD in the upcoming revision of DSM-5, which suggests several changes to the PTSD criteria.19 The subjective response to the trauma at the time of the event (Criterion A2) is to be deleted because it does not enhance accuracy of identifying people with PTSD. This is important

for patients with 1131 because many Inhibitors,research,lifescience,medical patients, especially those with more severe TBI, do not initially respond with a sense of fear or helplessness because of their impaired consciousness. Avoidance is being redefined to only include active avoidance of thoughts and situations, in recognition of the fact that numerous factor Inhibitors,research,lifescience,medical analytic studies have identified four factors of PTSD: reexperiencing, active avoidance, numbing/passive avoidance, and arousal.20-24 Most of these studies have found that emotional numbing and social withdrawal are distinct from more active avoidance strategies. This is relevant because

numbing and withdrawal can often be observed in more severe TBI; by separating these passive responses into a separate requisite Inhibitors,research,lifescience,medical cluster, it raises the possibility of differential diagnosis problems for more severe TBI patients, many of whom will display these symptoms. This cluster also includes alterations in mood and cognition, and comprises a range of symptoms that may include a range of emotional Inhibitors,research,lifescience,medical responses beyond fear and anxiety.25 This may also be problematic in terms of differential diagnosis because of the frequent depressive and generalized anxiety seen in more severe TBI

patients. Although the arousal cluster is retained, there is the expansion of several symptoms, including aggressive behavior and self-destructive/reckless behavior. Inhibitors,research,lifescience,medical These latter symptoms can be observed in the context of reduced inhibition in more severe TBI patients, thereby raising further differential diagnosis problems in distinguishing between symptoms of severe TBI and PTSD. In contrast to ASD, Mephenoxalone the International Classification of Diseases26 conceptualizes acute stress reaction as a transient reaction that can be evident immediately after the traumatic event and usually resolves within 2 to 3 days after trauma exposure. The ICD description of acute stress reaction includes dissociative (daze, stupor, amnesia), anxiety (tachycardia, sweating, flushing), anger, or depressive reactions, which may have more utility for clinicians than the more focused ASD criteria.27 This position presumes that the initial period after trauma exposure may result in a rather general state of distress that can include many emotional responses that cannot be readily classified into different responses.

The project will consist of: 1) qualitative baseline interviews,

The project will consist of: 1) qualitative baseline interviews, 2) a facilitated roundtable discussion among key informants, and 3) a Delphi consensus survey. The results of each phase will inform subsequent phases. Stakeholders The study team will develop a list of stakeholder categories of potential participants who may be able to provide important input to the study (Table ​(Table1).1). Purposeful Inhibitors,research,lifescience,medical sampling will be used to populate each category with approximately five potential participants. Additionally, one representative of each of the following national organizations will be invited: the EMS Chiefs of Canada, the Paramedic Association of Canada, the Canadian Association

of Emergency Physicians (EMS Committee), the Society for Prehospital

Educators of Canada, the Canadian Organization of Paramedic Regulators, and the International Association of Emergency Managers – Canada. Representation will be sought from Inhibitors,research,lifescience,medical all provinces, EMS system types (e.g., advanced and basic care, air and land ambulance) and professional types (e.g., paramedics and physicians). The total sample will include approximately 45 participants. Table 1 Participant categories and definitions Potential participants will be emailed an invitation letter and participant response form. Of those participants who return the participant response form, Inhibitors,research,lifescience,medical a sub-sample will be 5-FU concentration contacted by email, specifically recruiting them to participate in the qualitative baseline interviews. All participants will be invited to participate in the roundtable discussion in St. John’s, Newfoundland,

Canada on June 8th, 2011 and Inhibitors,research,lifescience,medical in the Delphi consensus survey, which will be conducted after the results of the roundtable discussion are available. Ethics Research ethics board approval was received for the qualitative interviews from St. Michael’s Hospital, Toronto ON Canada (11-011c), and for the roundtable session and consensus survey from the Capital District Health Authority, Halifax NS Canada (CDHA-RS/2011-248). For the telephone qualitative baseline interviews, informed consent will be verbally obtained by the interviewer (KD). For Inhibitors,research,lifescience,medical the roundtable discussion and consensus survey, participants will complete a through written informed consent procedure prior to the roundtable discussion. Phase 1: QUALITATIVE BASELINE STUDY Objective The purpose of this phase is to gain a baseline understanding of the perspective of key stakeholders with regard to the landscape of EMS research in Canada in order to provide a framework for the roundtable discussion. Areas of interest include: the barriers and opportunities in EMS research; recommendations for enhancing the research enterprise; and topic areas within EMS research believed to be a high priority. Design A qualitative key informant interview study will be conducted, using one-on-one semi-structured telephone interviews with a sub-sample of the invited participants.