Federal Student Loan Debt in Public Health and the Opportunities for Loan Repayment Programs

OBJECTIVES

A need persists for graduates with public health training in government public health roles; however, earnings for these positions tend to be lower when compared with earnings for people with undergraduate or graduate training who are working in other sectors, such as private health care or pharmaceuticals. This study assessed federal student loan debt associated with education for public health, with an aim to quantify the need that may be met through the federal Public Health Workforce Loan Repayment Program (PHWLRP), which is one tool that policy makers have proposed to incentivize people with public health training to pursue employment in government public health.

METHODS

We analyzed federal student loan data provided by the National Center for Education Statistics College Scorecard for the 2018-2019 academic year. We merged these data with the Integrated Postsecondary Education Data System to estimate the number of degrees awarded. We used Spearman rank correlation to compare associations between debt and annual earnings by award level (bachelor's, master's, and doctoral degrees).

RESULTS

Across all award levels, the median level of federal student loan debt associated with education for public health was $33 366. The median annual earnings 1 year after graduation were $80 687 for graduates with doctoral degrees and $33 279 for graduates with bachelor's degrees.

CONCLUSIONS

As policy makers attempt to strengthen the public health workforce with a focus on funding and implementing the PHWLRP, the existing levels of student debt should be considered to ensure that programs such as the PHWLRP are funded and reflect the needs of graduates and government public health employers.

Picturing the populations who could benefit from health insurance access expansions: An analysis of US health insurance television ads airing in 2018

Efforts to expand access to health insurance in the United States are key to addressing health inequities and ensuring that all individuals have access to health care during the coronavirus disease 2019 pandemic. Yet, attempts to expand public insurance programs, including Medicaid, continue to face opposition in state and federal policymaking. Limited policy success raises questions about the health insurance information environment and the extent that available information signals both available resources and the need for policy reform. In this study, we explore one way that consumers and policymakers learn about health insurance-television advertisements-and analyze content in ads that could contribute to an understanding of who needs health insurance or who deserves to benefit from policies to expand insurance access. Specifically, we implement a content analysis of health insurance ads airing throughout 2018 on broadcast television or national cable, focusing on the depictions of people in those ads. Our findings indicate that individuals depicted in ads for Medicaid plans differ from those in ads for non-Medicaid plans. Groups that comprise large populations of current Medicaid enrollees, children and pregnant people, were more likely to appear in ads for non-Medicaid plans than in ads for Medicaid plans. This has implications for potential enrollees' understanding of who is eligible as well as the general public's and policymakers' perspectives on who should be targeted for current or future policies.

Efficacy of Mepliex® Ag Versus Xeroform® As A Split-Thickness Skin Graft Donor Site Dressing: Bad Habits Die Hard

Autografting with split-thickness skin grafts (STSG) remains an essential procedure in burn and reconstructive surgery. The process of harvesting STSG, however, leaves behind a donor site, an exposed area of partial-thickness dermis left to heal by secondary intention. There has yet to be a consensus amongst surgeons regarding optimal management of the donor site. The ideal donor site dressing is one that allows for expeditious healing while minimizing pain and infection. Despite numerous studies demonstrating the superiority of moist wound healing, many surgeons continue to treat STSG donor sites dry, with petroleum-based gauze. In this study, two burn centers performed a retrospective review of burn patients whose STSG donor sites were treated with either Xeroform® or Mepilex® Ag dressings. Infections were documented and in a subgroup analysis of patients, postoperative pain scores were noted and total opiate usage during hospitalization was calculated. Analysis revealed an overall infection rate of 1.2% in the Mepilex® Ag group and 11.4% in the Xeroform® group (p<0.0001). Patients with Xeroform® donor site dressings had increased odds of donor site infection (OR=10.8, p=0.002). In subgroup analysis, there were no significant differences in maximum pain scores between Mepilex® Ag and Xeroform® groups, nor were there differences in opiate usage. STSG donor sites dressed with silver foam dressings have a lower rate of donor site infection relative to those dressed with petroleum-based gauze. Moist donor site dressings such as foam dressings (including Mepilex® Ag) should be the standard of care in STSG donor site wound care.

Television airings of U.S. federal COVID-19 public service announcements in 2020 were associated with market-level political orientation, not COVID-19 rates

Televised public service announcements were one of the ways that the U.S. federal government distributed health information about the COVID-19 pandemic to Americans in 2020. However, little is known about the reach of these campaigns or the populations who might have been exposed to the information these ads conveyed. We conducted a descriptive analysis of federally-affiliated public service announcement airings to assess where they were aired and the market-level social and demographic characteristics associated with the airings. We found no correspondence between airings and COVID-19 incidence rates from March to December 2020, but we found a positive association between airings and the Democratic vote share of the market, adjusting for other market demographic characteristics. Our results suggest that PSAs may have contributed to divergent exposure to health information among the U.S. public during the first year of the COVID-19 pandemic.

Paid family leave on local television news in the United States: Setting the agenda for policy reform

Access to paid family and medical leave (“paid leave”) has bipartisan support among lawmakers in the United States, but the issue remains stalled on the public policy agenda. The U.S. does not currently have a federal paid leave policy, and unpaid leave—guaranteed by the Family and Medical Leave Act of 1993—is all that is available to the majority of workers. In this study, we examine the content of local television news as representations of, and potential influence on, paid leave policy agendas. To do so, we analyze the extent to which local television news coverage describes the problem of lack of employment leave, and whether coverage highlights public policy as a solution. We use data from local television stations affiliated with the four major networks (ABC, NBC, CBS, and FOX) in all 210 media markets in the U.S. during a period pre-pandemic, from October 2018 until July 2019. We find that 64% of local television news coverage related to paid leave discussed the issue in the context of public policy. Coverage more often cited early-stage policy actions such as a policy idea - reflected in 40% of stories discussing stages of public policymaking – or the introduction of a bill – detailed in 22% of these stories. This coverage aligns with actual policy activity at the state-level during the same time period. News coverage infrequently included elements that could shape public understanding of paid leave as a population health issue, such as including health-related sources of providers or researchers. Policymakers, advocates, and researchers looking to advance public support for paid leave should consider efforts to use local television news as a vehicle to present health and policy-relevant information to broad segments of the public and set the agenda for policy reform.

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Local tv news coverage of paid family leave was infrequent.

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Relevant coverage highlighted policy details and included political sources.

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Political sources in coverage potentially politicized the issue for viewers.

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Details of the health equity implications of policy were largely absent.

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Local tv news outlets are important to prioritize in research dissemination.

Building a National Culture of Health: Background, Action Framework, Measures, and Next Steps

Because health is a function of more than medical care, solutions to U.S. health problems must encompass more than reforms to health care systems. But those working to improve health, well-being, and equity still too often find themselves traveling on parallel paths that rarely intersect. In 2013, the Robert Wood Johnson Foundation (RWJF) embarked on a pioneering effort to advance a Culture of Health initiative. A Culture of Health places well-being at the center of every aspect of life, with the goal of enabling everyone in our diverse society to lead healthier lives, now and for generations to come. To put this vision into action, RWJF worked with RAND to develop an action framework that identifies how the nation will work toward achieving these outcomes. This article provides background on the development of this action framework. The Culture of Health action framework is designed around four action areas and one outcome area. Action areas are the core areas in which investment and activity are needed: (1) making health a shared value; (2) fostering cross-sector collaboration to improve well-being; (3) creating healthier, more equitable communities; and (4) strengthening integration of health services and systems. Each action area contains a set of drivers indicating where the United States needs to accelerate change and a set of measures illustrating places for progress. Within the primary Culture of Health outcome---improved population health, well-being, and equity---the authors identified three outcome areas: enhanced individual and community well-being, managed chronic disease and reduced toxic stress, and reduced health care costs.

The prevalence of medical reasons for non-participation in the Scottish breast and bowel cancer screening programmes

Objective

Increasing uptake of cancer screening is a priority for health systems internationally, however, some patients may not attend because they are undergoing active treatment for the cancer of interest or have other medical reasons that mean participation would be inappropriate. This study aims to quantify the proportion of non-participants who have a medical reason for not attending cancer screening.

Methods

Medical reasons for not participating in breast and bowel screening were defined a priori on the basis of a literature review and expert opinion. The notes of 700 patients at two GP practices in Scotland were reviewed, to ascertain the prevalence of medical reasons amongst non-participants. Simple proportions and confidence intervals were calculated.

Results

17.4% of breast and 2.3% of bowel screening non-participants had a medical reason to not participate. The two most common reasons were previous breast cancer follow up (8.86%) and recent mammogram (6.57%).

Conclusion

These patients may not benefit from screening while also being distressed by receiving an invitation. This issue also makes accurate monitoring and target-setting for improving uptake difficult. Further work is needed to estimate robustly the extent to which medical reasons account for screening non-participation in a larger population.

The Influence of the Variations in Solubilising Properties of Polysorbate 80 on the Vitamin a Palmitate: Polysorbate 80: Glycerol: Water System

The vitamin A palmitate: Polysorbate 80: glycerol: water system has been studied with special reference to the production of one-phase, water miscible, transparent solutions. The preparation of such solutions has been shown to depend on the hydrophile-lipophile balance of Polysorbate 80; this can be controlled by a cloud-point titration method.

inhA promoter mutations: a gateway to extensively drug-resistant tuberculosis in South Africa?

SETTING

Western Cape and Eastern Cape Provinces, South Africa.

OBJECTIVE

To assess the potential association between the evolution of extensively drug-resistant (XDR) strains of Mycobacterium tuberculosis and mutations in the inhA promoter or the katG gene.

DESIGN

Analysis of the frequency distribution of isoniazid (INH) resistance conferring mutations in a population sample of drug-resistant isolates of M. tuberculosis.

RESULTS

In the Western Cape and Eastern Cape Provinces, the percentage of isolates exhibiting inhA promoter mutations increased significantly from respectively 48.4% and 62.4% in multidrug-resistant tuberculosis (MDR-TB) isolates to 85.5% and 91.9% in XDR isolates. Data from the Western Cape revealed that significantly more XDR-TB isolates showed mutations in the inhA promoter than in katG (85.5% vs. 60.9%, P < 0.01), while the respective proportions were equal for INH-resistant non-MDR-TB isolates (∼30%).

CONCLUSIONS

inhA promoter mutations are strongly associated with XDR-TB in South Africa. We suggest that this is due to the dual resistance to ethionamide and (low-dose) INH conferred by inhA promoter mutations. The use of molecular probe assays such as the GenoType® MTBDRplus assay, which allows the detection of inhA promoter mutations, could enable treatment regimens to be adjusted depending on the pharmacogenetic properties of the mutations detected.

Bilateral versus unilateral cochlear implantation in young children

OBJECTIVES

To compare the preverbal communication skills of two groups of young implanted children: those with unilateral implantation and those with bilateral implantation.

MATERIAL AND METHODS

The study assessed 69 children: 42 unilaterally and 27 bilaterally implanted with age at implantation less than 3 years. The preverbal skills of these children were measured before and 1 year after implantation, using Tait Video Analysis that has been found able to predict later speech outcomes in young implanted children.

RESULTS

Before implantation there was no significant difference between the unilateral group and the bilateral group. There was still no difference at 12 months following implantation where vocal autonomy is concerned, but a strongly significant difference between the groups for vocal turn-taking and non-looking vocal turns, the bilateral group outperforming the unilateral group. Regarding gestural turn-taking and gestural autonomy, there was a strongly significant difference between the two groups at the 12 month interval, and also a difference before implantation for gestural autonomy, the unilateral group having the higher scores. Multiple regression of non-looking vocal turns revealed that 1 year following implantation, bilateral implantation contributed to 51% of the variance (p<0.0001), after controlling for the influence of age at implantation and length of deafness which did not reach statistical significance.

CONCLUSIONS

Profoundly deaf bilaterally implanted children are significantly more likely to use vocalisation to communicate, and to use audition when interacting vocally with an adult, compared with unilaterally implanted children. These results are independent of age at implantation and length of deafness.

Deaf children with cochlear implants before the age of 1 year: comparison of preverbal communication with normally hearing children

OBJECTIVES

To compare preverbal behaviors of deaf children implanted under 1 year of age with age-matched hearing children.

METHODS

The study assessed 20 children; 10 deaf children implanted under 1 year of age and 10 normally hearing children of the same age. Preverbal skills were measured before, 6 months, and 1 year after implantation, using Tait Video Analysis that is able to predict later speech outcomes in young implanted children.

RESULTS

Regarding vocal turns, the normally hearing group outperformed the implanted group although the latter children became quite vocal, nearly 60% of their turns being taken in this way. The mean vocal autonomy in implanted children, 1 year after implantation, was very close to the respective of hearing children (38.5 versus 43.5). Regarding the non-looking vocal turns, by the 12-month interval, hearing children had somewhat higher scores than implanted children, but the difference was not significant and the increase in implanted children was much higher (40-fold increase versus 4-fold increase). However, implanted children were more likely to use silent communication than hearing children, although gestural turns were decreasing with time.

CONCLUSIONS

The small numbers in this study, although two of the largest European cochlear implant centers were combined to recruit such young implantees, led us to be cautious in interpreting the results. However, it seems that in deaf implanted children under 1 year of age, some preverbal communication behaviors are developing to an extent (although at a somewhat lower level) not significantly different from those of age-matched normally hearing children.

Audit of Neurosurgery Senior House Officer training in the United Kingdom and Eire: a postal survey

An audit was performed to describe the current training conditions of senior house officers in neurosurgery in the UK and Eire. A postal questionnaire was sent to all neurosurgery senior house officers in a 6-month training period between February and August 2003. The questionnaire covered most aspects of working pattern, training and job satisfaction by the end of the 6-month post. The results from the audit showed that there are deficiencies in certain areas of the current system being employed for senior house officer training. Improvements to this training system in line with the establishment of a generic neurosciences training programme will benefit future surgical trainees.

Communication development in young deaf children: review of the video analysis method

It is widely recognised that preverbal communication skills underpin development of spoken language. This historical review outlines the establishment of a quantitative methodology for assessing preverbal communication skills in children with hearing aids and cochlear implants. The method is shown to be reliable and free from observer bias. The review also summarises findings from a series of cross-sectional and longitudinal observational studies utilising the methodology. Profoundly deaf young children, either with cochlear implants or successful users of hearing aids, show similar patterns of preverbal communication development that contrast with those of unsuccessful hearing-aid users. Preverbal measures obtained 12 months after implantation are predictive of late performance on speech perception tasks. Moreover, there is a significant association between the preverbal measure of 'autonomy' obtained before implantation and later speech perception performance. This latter finding has important theoretical implications for understanding of language development and suggests that intervention that promotes autonomy in adult-child interaction may lead to improved outcomes. Such intervention could be commenced as soon as deafness is discovered.

Use of the telephone in prelingually deaf children with a multichannel cochlear implant

OBJECTIVE

To assess progress in the use of the telephone in a group of prelingually deaf children after cochlear implantation.

SETTING

Tertiary referral pediatric cochlear implant center in the U. K.

STUDY DESIGN

A prospective study was undertaken on a consecutive group of 150 congenital and prelingually deaf children up to 5 years after implantation. The study group was confined to prelingually deaf children aged less than 7 years at the time of implantation. No child was lost to follow-up, and there were no exclusions from the study. At the time of the study, 129 children had reached the 1-year stage, and 91, 68, 40, and 23 had reached the 2-, 3-, 4-, and 5-year intervals, respectively.

METHODS

A specifically designed profile was used to assess the telephone use of the implanted children. Regression analysis was used to assess the correlation between the results of the telephone profile with the outcomes of the Iowa sentence test and connected discourse tracking.

RESULTS

After implantation, prelingually deaf children showed significant progress in telephone use over time, not reaching a plateau at the 5-year interval (median score 27 with maximum score available 34). The results of the telephone profile showed significant correlations with the other tests of speech perception (correlation coefficients from 0.47 to 0.79, all statistically significant p < 0.0001).

CONCLUSION

The telephone profile provided a useful method of monitoring children's telephone use. The profile was easily administered, and it was sensitive in assessing the progress of prelingually deaf children with cochlear implants. Outcomes from the profile were highly correlated with results from other widely used closed- and open-set tests.

Approach to communication, speech perception and intelligibility after paediatric cochlear implantation

The aim of this study was to explore the relationship between approach to communication, speech perception and speech intelligibility after cochlear implantation of young children with profound early deafness. A prospective speech perception and speech intelligibility assessment was undertaken on a consecutive group of implanted children. There were 46 children at the three-year, 26 at the four-year and 20 at the five-year intervals. All had been born deaf or deafened before the age of three and received cochlear implants before the age of seven. Their speech perception ability and the intelligibility of their speech were measured before cochlear implantation and annually thereafter. The children's communication had been classified by their teachers of the deaf at each interval into one of two categories: those using an oral approach and those using a signing approach. Results revealed that at all intervals, those children classified as using oral communication significantly exceeded those using signed communication on measures of speech perception and intelligibility (p<0.05). When those children who had changed from signed to oral communication were compared at the three-year interval with those who used oral communication throughout, there was no significant difference in their results. However, it remains to be explored whether children use oral communication after cochlear implantation because they are doing well, or whether they do well because they are using oral communication.

Preimplant measures of preverbal communicative behavior as predictors of cochlear implant outcomes in children

OBJECTIVE

Comparison of preverbal communication behavior in young children before receiving cochlear implants with outcomes 3 yr after implantation on speech identification and speech production tasks, to assess whether outcomes can be predicted from characteristics inherent to the child before implantation.

DESIGN

Video recordings of preverbal communicative behavior were examined before use of the implant to quantify turn-taking and demonstration of autonomy by the child. Speech identification ability was measured 3 yr after implantation based on the Iowa Closed-Set Speech Perception Sentence Test, continuous discourse tracking, and an observational measure of telephone use. Speech production ability was measured 3 yr after implantation by the Edinburgh Articulation Test. Associations between the preimplant measures and the 3-yr outcomes were assessed by correlation analysis of data from 33 children.

RESULTS

The 3-yr performance measures of speech identification were correlated with the preimplant measure of autonomy. Telephone use and speech production ability were not significantly associated with the preimplant measures.

CONCLUSIONS

Up to a fourth of the variance in speech identification performance 3 yr after cochlear implantation of young children may be predicted from characteristics that are inherent to the child before implantation. Those characteristics are represented by the demonstration of autonomy in preverbal communicative interactions, whether by means of vocalization or by gesture. If those characteristics are acquired during infancy, outcomes in children with auditory prostheses including cochlear implants may be enhanced by activities that encourage autonomy in early years.

Using computers in nursing research

The advent of the computer age has brought with it some powerful new ways of making nursing research a more efficient process. Michael Tait and Julie Slater report.

Cochlear implants in young children: the relationship between speech perception and speech intelligibility

OBJECTIVE

To determine the relationship between measures of speech perception and speech production after cochlear implantation of young children with profound congenital and prelingual deafness.

DESIGN

A prospective study was undertaken on a consecutive group of children with profound deafness. There were 126 children at the preimplantation interval and 71, 50, 26, and 20 children, respectively, at the 2, 3, 4, and 5 yr follow-up after implantation. Speech perception and speech intelligibility were assessed using hierarchical rating scales. Spearman rank correlation coefficients were used to determine the statistical correlations. All patients were either congenitally deaf or deafened before the age of 3 yr and were implanted before age 7 yr. The patients all received the Nucleus multichannel cochlear implant system with the most appropriate speech encoding strategy.

RESULTS

Speech intelligibility at 5 yr was strongly correlated with speech perception at the 2, 3, 4, and 5 yr intervals after implantation (Spearman coefficients 0.77, 0.81, 0.58, 0.58; p < or = 0.01). Speech intelligibility at the 2, 3, and 4 yr intervals also correlated in a similar manner with earlier speech perception abilities (p < or = 0.01).

CONCLUSIONS

The results suggest that speech intelligibility between 2 and 5 yr after implantation in young children with congenital and prelingual profound deafness can be predicted by measures of earlier speech perception.

Antibiotic therapy

The nurse's role in the administration of antibiotics involves more than just giving medication to patients. Sue Jordan and Mike Tait describe how antibiotics work, their side effects, and the important aspects of nursing care for patients on these powerful drugs.

Metabolic, hemodynamic, and cardiac effects of captopril in young, spontaneously hypertensive rats

Spontaneously hypertensive rats (SHR) demonstrate elevated blood pressure, cardiac hypertrophy, glucose intolerance, and insulin resistance compared with age-matched Wistar-Kyoto rats (WKY). We investigated concurrent effects of captopril on blood pressure, cardiac mass, myocardial enzyme activities, glucose tolerance, and insulin action in young male SHR. At 10 weeks of age, SHR were randomized into two groups, one receiving distilled water, the other a captopril solution (50 mg/kg body weight/day). We also examined age-matched WKY receiving distilled water. Blood pressure was measured by tail-cuff during the 4-week treatment period and oral glucose tolerance was tested at the end of treatment. Hearts were weighed and ventricular tissue was assayed for activities of 3-hydroxyacyl-CoA dehydrogenase, citrate synthase, and hexokinase. Growth rates were similar between captopril-treated and control SHR, but less than those of WKY. Captopril reduced blood pressure (134 +/- 8 v 177 +/- 8 mm Hg, P < .05) and left ventricular mass (-18%, P < .05) in SHR. Cardiac enzyme activities also changed with captopril treatment, reflecting an increased capacity for beta-oxidation of fatty acids and reduced potential for glucose phosphorylation in the left ventricle of SHR. Serum concentrations of glucose, insulin, and free fatty acids after a brief fast and in response to oral glucose were not different after captopril treatment, suggesting no improvement in insulin action or glucose tolerance. In summary, treatment of young male SHR with captopril reduces blood pressure and cardiac mass, and promotes a small but significant increase in cardiac capacity for oxidation of fatty acids and reduction of glucose phosphorylation. In contrast, metabolic effects of captopril on oral glucose tolerance and insulin action were not evident.

Speech perception in children after cochlear implantation

OBJECTIVE

This study aimed to determine the speech perception ability of congenitally and prelingually deaf children after cochlear implantation.

STUDY DESIGN

A prospective study was undertaken on a consecutive group of 119 congenitally and prelingually deaf children up to 5 years after implantation. The study group was confined to children between 2 and 7 years of age at the time of implantation. All were implanted with multichannel cochlear implant systems. No child was lost to follow-up, and there were no exclusions from the study other than one child with auditory nerve aplasia.

METHODS

The Iowa Matrix Closed Set Sentence Test and Connected Discourse Tracking were used to assess closed- and open-set speech perception, respectively, without lip reading.

SETTING

The study was conducted at a tertiary referral pediatric cochlear implant center in the United Kingdom.

RESULTS

It was possible to formally test closed-set speech discrimination on 83, 55, 32, 21, and 15 children at 12, 24, 36, 48, and 60 months, respectively. On the Iowa Matrix Test, the median score was 0% at 12 months, reaching a plateau of 99% at 36 months. On Connected Discourse Tracking, the median scores at 12, 24, 36, 48, and 60 months were 0, 0, 21, 40, and 53 words per minute, respectively.

CONCLUSION

Congenitally and prelingually deaf children who receive cochlear implants before the age of 7 years have significant closed-set speech perception abilities develop in <3 years after implantation. Their ability to perform open-set tasks without lip reading is limited in the first 2 years but shows significant improvement, not reaching a plateau, at the 4-5-year interval after implantation.

Congenitally deaf children following cochlear implantation

The aim of this study is to determine the auditory performance of congenitally deaf children following cochlear implantation. A prospective study is undertaken of 71 such children who have been implanted in a dedicated paediatric cochlear implant centre and who have been followed up to 3 years following implantation. All children are aged less than 8 years at the time of implantation and all receive a multichannel cochlear implant system. No child meeting these criteria has been excluded from the study. The average age at implantation is 56.5 months (range 27 to 93 months, standard deviation 15.9 months). Auditory performance is assessed by using the Categories of Auditory Perception (CAP) scale which is developed primarily as a clinical tool for evaluating profoundly deaf young children following cochlear implantation. The median score prior to implantation on this scale is Category 0 (no awareness of environmental sound), at the 1 year interval is Category 4 (discrimination some speech sounds without lip-reading), and at the 2 and 3 year interval, the median score on the CAP scale is Category 5 (understanding of common phrases without lip-reading). These results indicate the ability of cochlear implants to provide significant auditory receptive skills to young congenitally deaf children.

The predictive value of measures of preverbal communicative behaviors in young deaf children with cochlear implants

OBJECTIVE

To determine whether measures of early communicative behavior in young children obtained within the first year after implantation could predict speech and language skills measured 3 yr after implantation.

DESIGN

An unselected sample of 17 children receiving multichannel cochlear implants under the age of 5 yr were monitored over a 3 yr period. During the first year after implantation, the development of early communicative behavior was measured at intervals using an established video analysis technique. Three years after implantation, four outcome measures were taken: the IOWA closed-set sentence test, a measure of continuous discourse tracking ability, a rating of ability to use the telephone and a global rating of auditory performance.

RESULTS

There was a significant correlation between the video analysis measure taken at the 12 mo interval, specifically the extent of auditory and vocal behaviors, and three of the outcomes obtained at the 3 yr interval: both performance-based measures and the telephone rating. When the four outcomes were aggregated to form a composite measure, the correlation was highly significant. There was no significant correlation between the composite measure and the video analysis measures obtained earlier than the 12 mo interval.

CONCLUSION

Development of a predominantly auditory and vocal style of early communicative behavior is predictive of relatively high levels of skill on speech and language tasks measured 2 yr later.

Smokeless nicotine administration is associated with hypertension but not with a deterioration in glucose tolerance in rats

Cigarette smoking is a major risk factor for coronary heart disease. To further investigate the relationship of nicotine with other cardiac risk factors, we studied the impact of nicotine on blood pressure and glucose tolerance. Adult male Sprague-Dawley rats were randomly assigned to receive nicotine or placebo pellets implanted subcutaneously. Weight gain was controlled by pair-feeding, and was not significantly different between nicotine- and placebo-treated animals. Blood pressure (in mm Hg) increased throughout a 3-week treatment period in nicotine-treated animals and was significantly higher [P < .05 by two-way ANOVA] than in placebo-treated rats. Blood pressure returned to normal within 1 week following exhaustion of the pellets. Oral glucose tolerance tests performed 2.5 weeks after pellet placement showed similar glucose, insulin, and free fatty acid (FFA) profiles by two-way ANOVA. In summary, smokeless nicotine exposure leads to sustained but reversible hypertension without deterioration in glucose tolerance or insulin action when weight gain is controlled. We conclude that in rats smokeless nicotine adversely affects the coronary risk profile by increasing blood pressure.

Comparative study of the inhibition of rat and tobacco squalene synthase by squalestatins

Squalestatins 1-3 and a series of S1 analogues modified at the C-1, C-3, C-4 or C-6 position were able to inhibit squalene synthase, a key enzyme in both cholesterol and phytosterol biosynthesis, in microsomal rich preparations from both rat liver and N. tabacum. IC50 values varied between 4 and 2000 nM, and similar inhibition values were observed in both systems. The structural requirements for maximal activity at each position are discussed.

Comparison of early communicative behavior in young children with cochlear implants and with hearing aids

Analysis of preverbal behaviors, which are the natural precursors of language development, was performed in three groups of young children with severe/profound hearing impairments, based on video recordings of interactions with a known adult. All groups were matched for age at assessment. One group of nine children had Nucleus multichannel cochlear implants with the MSP sound processor, whereas the other two groups of nine children each used conventional hearing aids. The first hearing aid group had unaided hearing threshold levels averaging 101 dB and were proficient users; the second aided group had hearing threshold levels averaging 114 dB and were poor users. Over the assessment period lasting 12 mo, starting at implantation or entry to nursery school according to group, implantees and proficient hearing aid users developed a strongly vocal/auditory style of communicative behavior, especially the implantees. This contrasted with a strongly visual/gestural style developed by the poor hearing aid users. It is concluded that implantees develop their early communicative behavior along lines that are similar to proficient hearing aid users, but more rapidly and more strongly in the vocal/auditory direction.

Ciguatera and mannitol: experience with a new treatment regimen

Ciguatera is a distressing, hitherto-untreatable and not rare disease which results from the eating of ciguatoxin-contaminated fish from tropical and subtropical waters. We report here the results of a pilot study to assess the efficacy of mannitol therapy in ciguatera poisoning. Twelve adult patients (six men) have been treated, five of whom--who were ill acutely--experienced a significant benefit from this therapy, in three cases, with a hitherto-unexperienced dramatic reversal of symptoms. We conclude that an intravenous infusion of 1.0 g/kg of mannitol which is given over 45 minutes, after rehydration if required, can be of significant benefit to at least some acutely intoxicated victims. We postulate either a reduction of axonal oedema, or a scavenger effect, or both, as the mechanism of the beneficial effects of mannitol. Ciguatoxin is rich in hydroxyl groups, and causes microscopic oedema of neural tissue. If our conclusion of the beneficial effects of mannitol therapy is confirmed, this will offer the first effective therapy for acute phases of this disease, and has promise of preventing much long-term morbidity.