Strengthening the policy, implementation, and accountability environment for quality care: experiences from quality of care network countries

Despite global commitment to universal health coverage with quality, poor quality of care (QOC) continues to impact health outcomes for mothers and newborns, especially in low-and-middle income countries. Although there is much experience from small-scale projects, without a long-term perspective it is unclear how to implement quality of care effectively and consistently for impact. In 2017, ten countries together with the WHO and a coalition of partners established the Network for Improving Quality of Care for Maternal, Newborn and Child Health (the Network). The Network agreed to pursue four strategic objectives-Leadership, Action, Learning and Accountability (LALA) for QOC. This paper describes, analyses and reflects on what has worked and some of the challenges faced in implementation of the LALA framework. The implementation of the LALA framework has served as a catalyst to develop an enabling environment for QOC in the Network countries through strengthening the policy, implementation, accountability and community engagement for quality care. Developing an enabling health system environment takes time, but it is possible and shows results. The implementation shows that health systems continue to face persistent challenges such as capacities to quickly scale up changes across subnational levels, limited workforce capability to implement quality improvement consistently and gaps in quality of relevant data. The implementation has also highlighted the need to develop new mechanisms for community engagement and learning systems that inform scaling up of good QOC practices across programmes and levels of care. Moving forward, the Network countries will build on the experiences and lessons learned and continue to strengthen the implementation of LALA strategic objectives for impact. We hope the Network experience will encourage other countries and partners to adopt the Network implementation model to enable delivery of quality care for everyone, everywhere, and actively collaborate and contribute to the QOC global learning network.

Universal health information is essential for universal health coverage

Universal access to health information is a human right and essential to achieving universal health coverage and the other health-related targets of the sustainable development goals. The COVID-19 pandemic has further highlighted the importance of trustworthy sources of health information that are accessible to all people, easily understood and acted on. WHO has developed Your life, your health: Tips and information for health and wellbeing, as a new digital resource for the general public which makes trustworthy health information understandable, accessible and actionable. It provides basic information on important topics, skills and rights related to health and well-being. For those who want to learn more, in-depth information can be accessed through links to WHO videos, infographics and fact sheets. Towards ensuring access to universal health information, this resource was developed using a structured method to: (1) synthesise evidence-based guidance, prioritising public-oriented content, including related rights and skills; (2) develop messages and graphics to be accessible, understandable and actionable for all people based on health literacy principles; (3) engage with experts and other stakeholders to refine messages and message delivery; (4) build a digital resource and test content to obtain feedback from a range of potential users and (5) adapt and co-develop the resource based on feedback and new evidence going forward. As with all WHO global information resources, Your life, your health can be adapted to different contexts. We invite feedback on how the resource can be used, refined and further co-developed to meet people's health information needs.

Prepared health systems provide quality care at all times

Blerta Maliqi and colleagues argue that capacity of a health system to provide good quality care even during health crises can save lives and is a strong indication of its resilience

Children, Adolescents, and Youth Pioneering a Human Rights-Based Approach to Climate Change

Climate change is the greatest challenge of our century. Children, adolescents, and youth will bear the most severe impacts, physically, socially, economically, and psychologically. In response to this immense threat and to the failure of international climate negotiations to date, young people are taking to the streets and using global fora to call for climate justice. While these protests have received much attention, there has been limited examination of these and other youth-led efforts through the lens of a human rights-based approach and its operational principles: participation, equality and nondiscrimination, accountability, and transparency. This paper draws from academic and gray literature, as well as the authors' experience as practitioners and young activists, to argue that young people, by promoting human rights-based operational principles at the international, national, and local levels, are pioneering a human rights-based approach to climate change. The paper concludes by suggesting how policy makers can support and empower young people to advance an explicit human rights-based agenda, while concurrently translating human rights-based operational principles into climate change policies and practice.

'I can no longer do my work like how I used to': a mixed methods longitudinal cohort study exploring how informal working mothers balance the requirements of livelihood and safe childcare in South Africa

Background

Returning to work after childbirth is challenging for working mothers. Childcare quality may have lifelong effects on children’s health, development and cognitive function. Over 60% of working women globally are informal workers without employment or maternity protection, but little is known about how these women care for their children.

Methods

We conducted a mixed-methods longitudinal cohort study among informal women workers in Kwazulu-Natal, South Africa between July 2018 and August 2019. Participants were followed up from late pregnancy until they had returned to work. We conducted structured quantitative interviews and in-depth qualitative interviews at different time points: before and after the baby was born, and after returning to work. Subsequently, a photovoice activity was conducted with groups of participants to explore the childcare environment. We employed narrative thematic analysis for qualitative data and descriptive analysis for quantitative data.

Results

24 women were recruited to participate. Women returned to work soon after the baby was born, often earlier than planned, because of financial responsibilities to provide for the household and new baby. Women had limited childcare choices and most preferred to leave their babies with family members at home, as the most convenient, low cost option. Otherwise, mothers chose paid carers or formal childcare. However, formal childcare was reported to be poor quality, unaffordable and not suited to needs of informal workers. Mothers expressed concern about carers’ reliability and the safety of the childcare environment. Flexibility of informal work allowed some mothers to adapt their work to care for their child themselves, but others were unable to arrange consistent childcare, sometimes leaving the child with unsuitable carers to avoid losing paid work. Mothers were frequently anxious about leaving the child but felt they had no choice as they needed to work.

Conclusion

Mothers in informal work had limited childcare options and children were exposed to unsafe, poor-quality care. Maternity protection for informal workers would support these mothers to stay home longer to care for themselves, their family and their baby. Provision of good quality, affordable childcare would provide stability for mothers and give these vulnerable children the opportunity to thrive.

Supplementary Information

The online version contains supplementary material available at 10.1186/s12905-021-01425-y.

Correction to: Addressing the interaction between food insecurity, depression risk and informal work: findings of a cross-sectional survey among informal women workers with young children in South Africa

An amendment to this paper has been published and can be accessed via the original article.

Addressing the interaction between food insecurity, depression risk and informal work: findings of a cross-sectional survey among informal women workers with young children in South Africa

Background

There is a high burden of depression globally, including in South Africa. Maternal depression is associated with poverty, unstable income, food insecurity, and lack of partner support, and may lead to poor outcomes for mothers and children. In South Africa one-third of working women are in informal work, which is associated with socioeconomic vulnerability.

Methods

A cross sectional survey explored work setting and conditions, food security and risk of depression among informal working women with young children (0–3 years). Depression risk was assessed using the Edinburgh Postnatal Depression Score (EPDS) and Whooley score. Food insecurity was evaluated using Household Food Insecurity Access Scale. Data was analysed using SPSS and Stata.

Results

Interviews were conducted with 265 informal women workers. Types of work included domestic work, home-based work, informal employees and own account workers, most of whom were informal traders. Most participants (149/265; 56.2%) earned between US$70–200 per month, but some participants (79/265; 29.8%) earned < US$70 per month, and few earned > US$200 per month (37/265; 14.0%). Many participants experienced mild (38/267; 14.3%), moderate (72/265; 27.2%) or severe (43/265; 16%) food insecurity. Severe food insecurity was significantly higher among participants with the lowest income compared to those with the highest income (p = 0.027). Women who received financial support from the baby’s father were less likely to be food insecure (p = 0.03). Using EPDS scores, 22/265 (8.3%) women were designated as being at risk of depression. This was similar among postnatal women and women with older children. Household food insecurity was significantly associated with depression risk (p < 0.001).

Conclusions

Informal women workers were shown to be vulnerable with low incomes and high rates of food insecurity, thus increasing the risk for poor maternal health. However, levels of depression risk were low compared to previous estimates in South Africa, suggesting that informal workers may have high levels of resilience. Interventions to improve social protection, access to health services, and support for safe childcare in the workplace could improve the health and wellbeing of these mothers and support them to care for their children.

Attitudes and perceptions about breastfeeding among female and male informal workers in India and South Africa

BACKGROUND

Worldwide, over 740 million women make their living in the informal economy and therefore lack formal employment benefits, such as maternity leave, that can improve infant feeding practices. Returning to work is one of the biggest challenges women face to maintaining breastfeeding. This study aimed to explore attitudes and perceptions towards breastfeeding in the informal work environment among male and female informal workers.

METHODS

The study used a qualitative research design. Purposive and snowball sampling was employed. Focus group discussions (FGDs) were conducted among men and women working in different types of informal jobs, in India and South Africa. Data was analysed using a thematic approach and the framework method.

RESULTS

Between March and July 2017, 14 FGDs were conducted in South Africa and nine in India. Most women were knowledgeable about the benefits of breastfeeding and reported initiating breastfeeding. However, pressures of family responsibilities and household financial obligations frequently forced mothers to return to work soon after childbirth. Upon return to work many mothers changed their infant feeding practices, adding breastmilk substitutes like formula milk, buffalo milk, and non-nutritive fluids like Rooibos tea. Some mothers expressed breastmilk to feed the infant while working but many mothers raised concerns about expressed breastmilk becoming 'spoilt'. Breastfeeding in the workplace was challenging as the work environment was described as unsafe and unhygienic for breastfeeding. Mothers also described being unable to complete work tasks while caring for an infant. In contrast, the flexibility of informal work allowed some mothers to successfully balance competing priorities of childcare and work. Sociocultural challenges influenced breastfeeding practices. For example, men in both countries expressed mixed views about breastfeeding. Breastfeeding was perceived as beneficial for both mother and child, however it was culturally unacceptable for women to breastfeed in public. This affected working mothers' ability to breastfeed outside the home and contributed to a lack of respect for women who chose to breastfeed in the workplace.

CONCLUSION

Mothers working in the informal sector face multiple challenges to maintaining breastfeeding. Interventions are required to support feeding and childcare if global nutrition and development goals are to be met.

Community participation for transformative action on women's, children's and adolescents' health

The Global strategy for women’s, children’s and adolescents’ health (2016–2030) recognizes that people have a central role in improving their own health. We propose that community participation, particularly communities working together with health services (co-production in health care), will be central for achieving the objectives of the global strategy. Community participation specifically addresses the third of the key objectives: to transform societies so that women, children and adolescents can realize their rights to the highest attainable standards of health and well-being. In this paper, we examine what this implies in practice. We discuss three interdependent areas for action towards greater participation of the public in health: improving capabilities for individual and group participation; developing and sustaining people-centred health services; and social accountability. We outline challenges for implementation, and provide policy-makers, programme managers and practitioners with illustrative examples of the types of participatory approaches needed in each area to help achieve the health and development goals.

Cross-country analysis of strategies for achieving progress towards global goals for women's and children's health

Objective

To identify how 10 low- and middle-income countries achieved accelerated progress, ahead of comparable countries, towards meeting millennium development goals 4 and 5A to reduce child and maternal mortality.

Methods

We synthesized findings from multistakeholder dialogues and country policy reports conducted previously for the Success Factors studies in 10 countries: Bangladesh, Cambodia, China, Egypt, Ethiopia, the Lao People's Democratic Republic, Nepal, Peru, Rwanda and Viet Nam. A framework approach was used to analyse and synthesize the data from the country reports, resulting in descriptive or explanatory conclusions by theme.

Findings

Successful policy and programme approaches were categorized in four strategic areas: leadership and multistakeholder partnerships; health sector; sectors outside health; and accountability for resources and results. Consistent and coordinated inputs across sectors, based on high-impact interventions, were assessed. Within the health sector, key policy and programme strategies included defining standards, collecting and using data, improving financial protection, and improving the availability and quality of services. Outside the health sector, strategies included investing in girls’ education, water, sanitation and hygiene, poverty reduction, nutrition and food security, and infrastructure development. Countries improved accountability by strengthening and using data systems for planning and evaluating progress.

Conclusion

Reducing maternal and child mortality in the 10 fast-track countries can be linked to consistent and coordinated policy and programme inputs across health and other sectors. The approaches used by successful countries have relevance to other countries looking to scale-up or accelerate progress towards the sustainable development goals.

Developing a best practice pathway to support improvements in Indigenous Australians' mental health and well-being: a qualitative study

OBJECTIVE

There is a need to adapt pathways to care to promote access to mental health services for Indigenous people in Australia. This study explored Indigenous community and service provider perspectives of well-being and ways to promote access to care for Indigenous people at risk of depressive illness.

DESIGN

A participatory action research framework was used to inform the development of an agreed early intervention pathway; thematic analysis

SETTING

2 remote communities in the Northern Territory.

PARTICIPANTS

Using snowball and purposive sampling, 27 service providers and community members with knowledge of the local context and the diverse needs of those at risk of depression were interviewed. 30% of participants were Indigenous. The proposed pathway to care was adapted in response to participant feedback.

RESULTS

The study found that Indigenous mental health and well-being is perceived as multifaceted and strongly linked to cultural identity. It also confirms that there is broad support for promotion of a clear pathway to early intervention. Key identified components of this pathway were the health centre, visiting and community-based services, and local community resources including elders, cultural activities and families. Enablers to early intervention were reported. Significant barriers to the detection and treatment of those at risk of depression were identified, including insufficient resources, negative attitudes and stigma, and limited awareness of support options.

CONCLUSIONS

Successful early intervention for well-being concerns requires improved understanding of Indigenous well-being perspectives and a systematic change in service delivery that promotes integration, flexibility and collaboration between services and the community, and recognises the importance of social determinants in health promotion and the healing process. Such changes require policy support, targeted training and education, and ongoing promotion.

Success factors for reducing maternal and child mortality

Reducing maternal and child mortality is a priority in the Millennium Development Goals (MDGs), and will likely remain so after 2015. Evidence exists on the investments, interventions and enabling policies required. Less is understood about why some countries achieve faster progress than other comparable countries. The Success Factors for Women's and Children's Health studies sought to address this knowledge gap using statistical and econometric analyses of data from 144 low- and middle-income countries (LMICs) over 20 years; Boolean, qualitative comparative analysis; a literature review; and country-specific reviews in 10 fast-track countries for MDGs 4 and 5a. There is no standard formula--fast-track countries deploy tailored strategies and adapt quickly to change. However, fast-track countries share some effective approaches in addressing three main areas to reduce maternal and child mortality. First, these countries engage multiple sectors to address crucial health determinants. Around half the reduction in child mortality in LMICs since 1990 is the result of health sector investments, the other half is attributed to investments made in sectors outside health. Second, these countries use strategies to mobilize partners across society, using timely, robust evidence for decision-making and accountability and a triple planning approach to consider immediate needs, long-term vision and adaptation to change. Third, the countries establish guiding principles that orient progress, align stakeholder action and achieve results over time. This evidence synthesis contributes to global learning on accelerating improvements in women's and children's health towards 2015 and beyond.

Evaluation of a Culturally Adapted Training in Indigenous Mental Health and Wellbeing for the Alcohol and Other Drug Workforce

Indigenous Australians have high rates of mental illness comorbid with substance misuse. The complex needs of this client group create challenges for the alcohol and other drug (AOD) workforce. This paper describes the outcomes of an Indigenous-specific “Yarning about Mental Health” training for the AOD workforce to strengthen knowledge and skills in mental health approaches and in their engagement with Indigenous clients. The training provides culturally adapted strategies and tools for understanding mental health, promoting wellbeing, and delivering brief interventions in the substance misuse setting. A nonexperimental evaluation which incorporated pre-post questionnaires was conducted with workshop participants attending one of four trainings. The training was perceived to be highly appropriate and helpful in participants’ work with Indigenous AOD clients. There was significant improvement in confidence and knowledge related to Indigenous mental health and wellbeing and qualitative data supported these positive outcomes. This study supports the need to blend Indigenous concepts of health and wellbeing with non-Indigenous ways of understanding and treating illness in order to develop services which are appropriate to Indigenous peoples. It also suggests research is required to understand whether self-reported increases in knowledge and confidence can translate into behavioural changes in participants' teaching and practice of culturally competent care and to improved client outcomes.

Assessing women's understandings of health in rural Papua New Guinea: implications for health policy and practice

In Papua New Guinea (PNG), women's health is addressed by applying biomedical solutions which often ignore the complexity of women's histories, cultural contexts and lived experiences. The objective of this study was to examine adult and older women's perceptions of health and well-being to identify priority areas for public service interventions. Rapid ethnographic assessment was conducted in the Wosera district, a rural area of PNG from mid-2005 to early 2006, to examine the health concerns of women. Twenty-seven adult women and 10 older women participated in the study. Health was not limited to one aspect of a woman's life, such as their biology or maternal roles; it was also connected with the social, cultural and spiritual dimensions of women's daily existence. Participants also identified access to money and supportive interpersonal relationships as significant for good health. A disconnect was found to exist between women's understandings of good health and socio-political health policies in PNG, something likely to be repeated in health service delivery to different cultural groups across the Asia Pacific region. Health and development practitioners in PNG must become responsive to the complexity of women's social relationships and to issues relating to the context of women's empowerment in their programmes.

Stressors, coping, and social support among women in Papua New Guinea

In this study we used an interpretive, ethnographic, qualitative approach to examine Papua New Guinean women's narratives and perceptions about their health and the ways in which these were linked to coping with personal adversity. Women used a variety of strategies to cope with psychosocial stressors and challenging life circumstances, including both reliance on their own agency and active efforts and the seeking of social and spiritual support. We observed that limited access to social and economic resources, combined with gender constraints, made women socially and culturally vulnerable to social strain that affected their physical and emotional health. A number of women used avoidance strategies that were related to lower levels of self-esteem and life satisfaction and displayed high levels of anxiety. We propose the need to understand the context in which coping takes place and to enhance resilience strategies used by women in developing countries such as Papua New Guinea to manage the multiple stressors associated with confronting life's challenges.

Developmental dysplasia of the hip practice guideline: technical report. Committee on Quality Improvement, and Subcommittee on Developmental Dysplasia of the Hip

OBJECTIVE

To create a recommendation for pediatricians and other primary care providers about their role as screeners for detecting developmental dysplasia of the hip (DDH) in children.

PATIENTS

Theoretical cohorts of newborns.

METHOD

Model-based approach using decision analysis as the foundation. Components of the approach include the following:

PERSPECTIVE

Primary care provider.

OUTCOMES

DDH, avascular necrosis of the hip (AVN).

OPTIONS

Newborn screening by pediatric examination; orthopaedic examination; ultrasonographic examination; orthopaedic or ultrasonographic examination by risk factors. Intercurrent health supervision-based screening. PREFERENCES: 0 for bad outcomes, 1 for best outcomes.

MODEL

Influence diagram assessed by the Subcommittee and by the methodology team, with critical feedback from the Subcommittee. EVIDENCE SOURCES: Medline and EMBASE search of the research literature through June 1996. Hand search of sentinel journals from June 1996 through March 1997. Ancestor search of accepted articles. EVIDENCE QUALITY: Assessed on a custom subjective scale, based primarily on the fit of the evidence to the decision model.

RESULTS

After discussion, explicit modeling, and critique, an influence diagram of 31 nodes was created. The computer-based and the hand literature searches found 534 articles, 101 of which were reviewed by 2 or more readers. Ancestor searches of these yielded a further 17 articles for evidence abstraction. Articles came from around the globe, although primarily Europe, British Isles, Scandinavia, and their descendants. There were 5 controlled trials, each with a sample size less than 40. The remainder were case series. Evidence was available for 17 of the desired 30 probabilities. Evidence quality ranged primarily between one third and two thirds of the maximum attainable score (median: 10-21; interquartile range: 8-14). Based on the raw evidence and Bayesian hierarchical meta-analyses, our estimate for the incidence of DDH revealed by physical examination performed by pediatricians is 8.6 per 1000; for orthopaedic screening, 11.5; for ultrasonography, 25. The odds ratio for DDH, given breech delivery, is 5.5; for female sex, 4.1; for positive family history, 1.7, although this last factor is not statistically significant. Postneonatal cases of DDH were divided into mid-term (younger than 6 months of age) and late-term (older than 6 months of age). Our estimates for the mid-term rate for screening by pediatricians is 0.34/1000 children screened; for orthopaedists, 0.1; and for ultrasonography, 0.28. Our estimates for late-term DDH rates are 0.21/1000 newborns screened by pediatricians; 0.08, by orthopaedists; and 0.2 for ultrasonography. The rates of AVN for children referred before 6 months of age is estimated at 2.5/1000 infants referred. For those referred after 6 months of age, our estimate is 109/1000 referred infants. The decision model (reduced, based on available evidence) suggests that orthopaedic screening is optimal, but because orthopaedists in the published studies and in practice would differ, the supply of orthopaedists is relatively limited, and the difference between orthopaedists and pediatricians is statistically insignificant, we conclude that pediatric screening is to be recommended. The place of ultrasonography in the screening process remains to be defined because there are too few data about postneonatal diagnosis by ultrasonographic screening to permit definitive recommendations. These data could be used by others to refine the conclusions based on costs, parental preferences, or physician style. Areas for research are well defined by our model-based approach.

Interactions between a single immunoglobulin-binding domain of protein L from Peptostreptococcus magnus and a human kappa light chain

The placement of a tryptophan residue into a single Ig-binding-domain of protein L from Peptostreptococcus magnus has been used to examine the binding interactions between the binding domain and kappa light chains (kappa-chains). The fluorescence intensity of the mutant domain increases on the formation of a complex with kappa-chains. This has been used to determine the Kd of the complex under a range of conditions by using both pre-equilibrium and equilibrium methods. The Kd values determined for the complex with kappa-chains at a number of different pH values are very close to those obtained with the wild-type domain, indicating that the mutation has not substantially affected its binding properties. Examination of the reaction between the mutant domain and kappa-chains by stopped-flow fluorescence shows that complex formation takes place by two discrete, sequential processes. A fast bimolecular reaction, with a rate constant of 8.3x10(5) M-1. s-1 (at pH8.0 and 25 degrees C), is followed by a slow unimolecular process with a rate (1.45 s-1) that is independent of the concentration of the reactants. This suggests that a conformational change occurs after the initial encounter complex is formed. The dissociation of the complex at equilibrium occurs in a single process of rate 0.095 s-1 at pH8.0 and 25 degrees C. Stopped-flow CD studies show that a slow decrease in ellipticity at 275 nm occurs with a rate of 1.3 s-1 when wild-type protein binds to kappa-chains, suggesting that the conformational transition might involve a change in environment around one or more tyrosine residues.

Type II collagen and TGF-betas in developing and aging porcine mandibular condylar cartilage: immunohistochemical studies

Transforming growth factor-betas (TGF-betas) have been associated with the development and maintenance of articular cartilage. However, no studies have addressed their role in the postnatal development of mandibular condylar cartilage. This investigation represents the first immunohistochemical characterization of TGF-beta isoforms and type II collagen in porcine mandibular condylar cartilage from various age groups. Furthermore, it is the first description of possible age-related changes in the expression of these proteins during postnatal development of this tissue. Condylar cartilage was dissected from freshly harvested temporomandibular joints of newborn, 6-, 12-, 24-, and 36-month-old farm swine. TGF-beta1, TGF-beta2, TGF-beta3, and type II collagen were localized via standard immunohistochemical procedures. An immunoblot technique was employed to compare the relative amount of each protein present in the various age groups. Immunoreactivity was detected in mandibular condylar cartilage for all three isoforms of TGF-beta and for Type II collagen. All age groups demonstrated some evidence of immunostaining, primarily in the cytoplasm of cells from most zones of the cartilage. Immunoblot results indicated that TGF-beta isoforms had individualized patterns of expression. When newborn protein levels were taken as the baseline, TGF-beta1 demonstrated a significant increase at ages 24 and 36 months. TGF-beta2 significantly increased at 6, 12, 24, and 36 months (peak levels at 24 months; similar levels at 6, 12, and 36 months), whereas TGF-beta3 remained stable at all ages. Type II collagen demonstrated increases that paralleled the increased levels of TGF-beta1 and TGF-beta2 at 24 and 36 months.

Effects of exercise on fatigue, aerobic fitness, and disease activity measures in persons with rheumatoid arthritis

The effects of 12 weeks of low-impact aerobic exercise on fatigue, aerobic fitness, and disease activity were examined in a quasi-experimental time series study of 25 adults with rheumatoid arthritis (RA). Measures were obtained preintervention, midtreatment (after 6 weeks of exercise), end of treatment (after 12 weeks of exercise), and at a 15-week follow-up. ANOVAS for repeated measures showed that those subjects who participated more frequently reported decreased fatigue, while those who participated less frequently reported an increase in fatigue. All subjects, on average, showed increased aerobic fitness and increased right and left hand grip strength, decreased pain, and decreased walk time. There were no significant increases in joint count or sedimentation rate. Significant improvements in measures at the 15-week follow-up also were found. Findings indicate that persons with RA who participate in appropriate exercises may lessen fatigue levels and experience other positive effects without worsening their arthritis.

A different transformation

The pattern of mRNA expression for liver-specific proteins and liver-enriched transcription factors were studied in two models of facultative gut epithelial progenitor cells activation: D-galactosa mine (GalN)-induced liver injury and dietary copper depletion leading to pancreatic acinar atrophy. After 5 weeks of copper deficiency (CuD, pancreatic acini of Fischer 344 rats underwent atrophy, associated with intense proliferation of small ductlike cells with oval-shaped nuclei. These cells resemble morphologically epithelial progenitor cells of the liver that proliferate after GalN administration. Activated pancreatic epithelial cells express mRNAs for five liver specific genes normally expressed in fetal liver, including α 1 antitrypsin, glucose-6-phosphatase, and others, but not genes that are turned on after birth such as serine dehydratase, tyrosine aminotransferase, and multidrug resistance gene-1b. They express mRNAs for liver-enriched transcription factors including HNF-1α, HNF-3β and γ, HNF-4, and members of the CCAAT-enhancer binding protein (C/EBP) family. The only mRNA for a liver-enriched transcription factor not detected in the pancreas of CuD animals was HNF-3α. Expression of HNF-3α, β and γ, and C/EBP-β mRNA was highly activated in proliferating liver epithelial cells on days 2 and 3 after GalN injury. Increased expression of C/EBP-δ was observed first in the liver on day 1 after GalN administration and in the pancreas at 4 weeks after initiating CuD. We suggest that C/EBP-δ could not be involved in the initial activation of epithelial progenitor cells and that HNF-3α, β and γ, and C/EBP-β might participate in their maturation. We conclude further that pancreatic epithelial progeni tor cells undertake differentiation through the hepatocyte lineage but cannot complete the differ entiation program within the pancreatic milieu.

A biomechanical analysis of solvent-dehydrated and freeze-dried human fascia lata allografts. A preliminary report

This study compares the basic mechanical properties of two groups of commercially available fascia lata allografts processed by different means (solvent-dehydrated and sterilized via gamma radiation, and freeze-dried without secondary sterilization). The results reveal significantly (P less than 0.05) higher stiffness, higher maximum load to failure, and higher maximum load per unit width of graft with the solvent-dried as opposed to the freeze-dried fascia lata. Subsections of individual solvent-dried specimens were also more uniform in their mechanical properties than those of the freeze-dried allografts.

CLINICAL RELEVANCE

Fascia lata is used as a graft material in a variety of orthopaedic procedures. Allograft fascia lata offers an increased cross-sectional area of material and eliminates the morbidity associated with the harvesting of autologous tissues. However, the structural uniformity of such large grafts has been questioned. Processing techniques used in the sterilization and storage of such grafts is varied and represents a potential source of variation in the mechanical properties of allograft specimens. The results of this study suggest that a commercially available solvent-dehydrated form of fascia lata provides a more suitable grafting material than freeze-dried specimens obtained from tissue banks.

Unruptured cerebral aneurysms presenting as recurrent transient neurologic deficits

Recurrent transient neurologic deficits were evaluated clinically in four patients. In three patients, the symptoms included recurrent transient homonymous hemianopia, episodic weakness and numbness of the left arm and leg, and recurrent sudden loss of speech and of strength in the right arm. In these three patients, the episodes were first thought to be transient ischemic attacks (TIAs). A fourth patient had repeated confusional spells, in which a recurrent musical theme excluded other thoughts. This was associated with dizziness and difficulty in naming. A partial complex seizure was thought responsible. In each of the cases the symptoms lasted less than 30 minutes and were not associated with loss of consciousness, headache, or stiff neck. Electroencephalogram (EEG), brain scan, lumbar puncture, and computed tomography (CT) scan were normal. In all patients, cerebral arteriography unexpectedly revealed an unruptured cerebral aneurysm. The locations of the aneurysms were appropriate to the symptoms, which remitted in the three patients treated surgically for the aneurysm. Although the pathophysiology is uncertain, an ischemic process may be implicated.