Labial salivary gland biopsy in Sjögren's disease

A labial biopsy technique is described and was used to study 40 patients with connective tissue disease and 60 postmortem subjects. More than one focus of lymphocytes per 4 sq mm of minor salivary tissue was found to be a consistent finding in patients with Sjögren's disease. The labial biopsy is shown to be a further valuable investigative procedure in such patients.

The metabolically obese, normal-weight individual revisited

Nearly 20 years ago, it was suggested that individuals exist who are not obese on the basis of height and weight, but who, like people with overt obesity, are hyperinsulinemic, insulin-resistant, and predisposed to type 2 diabetes, hypertriglyceridemia, and premature coronary heart disease. Since then it has become increasingly clear that such metabolically obese, normal-weight (MONW) individuals are very common in the general population and that they probably represent one end of the spectrum of people with the insulin resistance syndrome. Available evidence also suggests that MONW individuals could account for the higher prevalence of type 2 diabetes, cardiovascular disease, and other disorders in people with a BMI in the 20-27 kg/m2 range who have gained modest amounts of weight (2-10 kg of adipose mass) in adult life. Specific factors that appear to predispose MONW, as well as more obese individuals, to insulin resistance include central fat distribution, inactivity, and a low VO2max. Because these factors are potentially reversible and because insulin resistance may contribute to the pathogenesis of many diseases, it is our premise that a compelling argument can be made for identifying MONW individuals and treating them with diet, exercise, and possibly pharmacological agents before these diseases become overt, or at least early after their onset. One reason for doing so is that disorders such as type 2 diabetes may be accompanied by irreversible consequences, e.g., ischemic heart disease and nephropathy, at the time of diagnosis or shortly thereafter. Another is that MONW individuals in general should be younger and more amenable and responsive to diet and exercise therapy than are obese patients with established disease. That long-term diet and exercise can work is suggested by two large studies in which, over 5-6 years, the incidence of diabetes was diminished in nonobese and minimally obese patients with impaired glucose tolerance. Based on these considerations and the emerging worldwide epidemic of type 2 diabetes, we believe that studies to assess whether therapies aimed at young MONW individuals can prevent the development of type 2 diabetes and other diseases, including perhaps obesity itself, are urgently needed.

Scale up services for mental disorders: a call for action

We call for the global health community, governments, donors, multilateral agencies, and other mental health stakeholders, such as professional bodies and consumer groups, to scale up the coverage of services for mental disorders in all countries, but especially in low-income and middle-income countries. We argue that a basic, evidence-based package of services for core mental disorders should be scaled up, and that protection of the human rights of people with mental disorders and their families should be strengthened. Three questions are critical to the scaling-up process. What resources are needed? How can progress towards these goals be monitored? What should be the priorities for mental health research? To address these questions, we first estimated that the amount needed to provide services on the necessary scale would be US$2 per person per year in low-income countries and $3-4 in lower middle-income countries, which is modest compared with the requirements for scaling-up of services for other major contributors to the global burden of disease. Second, we identified a series of core and secondary indicators to track the progress that countries make toward achievement of mental health goals; many of these indicators are already routinely monitored in many countries. Third, we did a priority-setting exercise to identify gaps in the evidence base in global mental health for four categories of mental disorders. We show that funding should be given to research that develops and assesses interventions that can be delivered by people who are not mental health professionals, and that assesses how health systems can scale up such interventions across all routine-care settings. We discuss strategies to overcome the five main barriers to scaling-up of services for mental disorders; one major strategy will be sustained advocacy by diverse stakeholders, especially to target multilateral agencies, donors, and governments. This Series has provided the evidence for advocacy. Now we need political will and solidarity, above all from the global health community, to translate this evidence into action. The time to act is now.

Client Socio-Demographic and Service Receipt Inventory--European Version: development of an instrument for international research. EPSILON Study 5. European Psychiatric Services: Inputs Linked to Outcome Domains and Needs

BACKGROUND

Cross-cultural comparison of mental health service utilisation and costs is complicated by the heterogeneity of service systems. For data to be locally meaningful yet internationally comparable, a carefully constructed approach to its collection is required.

AIMS

To develop a research method and instrument for the collection of data on the service utilisation and related characteristics of people with mental disorders, as the basis for calculating the costs of care.

METHOD

Various approaches to the collection of service use data and key stages of instrument development were identified in order to select the most appropriate methods.

RESULTS

Based on previous work, and following translation and cross-cultural validation, an instrument was developed: the Client Socio-Demographic and Service Receipt Inventory--European Version (CSSRI-EU). This was subsequently administered to 404 people with schizophrenia across five countries.

CONCLUSION

The CSSRI-EU provides a standardised yet adaptable method for collating service receipt and associated data alongside assessment of patient outcomes.

The London Depression Intervention Trial. Randomised controlled trial of antidepressants v. couple therapy in the treatment and maintenance of people with depression living with a partner: clinical outcome and costs

BACKGROUND

Relapse of depression is associated with a criticising attitude of the patient's partner.

AIMS

To compare the relative efficacy and cost of couple therapy and antidepressant drugs for the treatment and maintenance of people with depression living with a critical partner.

METHOD

A randomised controlled trial of antidepressant drugs v. couple therapy. The subjects were 77 people meeting criteria for depression living with a critical partner.

RESULTS

Drop-outs were 56.8% [corrected] from drug treatment and 15% from couple therapy. Subjects' depression improved in both groups, but couple therapy showed a significant advantage, according to the Beck Depression Inventory, both at the end of treatment and after a second year off treatment. Adding the costs of the interventions to the costs of services used showed there was no appreciable difference between the two treatments.

CONCLUSIONS

For this group couple therapy is much more acceptable than antidepressant drugs and is at least as efficacious, if not more so, both in the treatment and maintenance phases. It is no more expensive overall.

London-east Anglia randomised controlled trial of cognitive-behavioural therapy for psychosis. III: Follow-up and economic evaluation at 18 months

BACKGROUND

A randomised controlled trial of cognitive-behavioural therapy (CBT) for people with medication-resistant psychosis showed improvements in overall symptomatology after nine months of treatment; good outcome was strongly predicted by a measure of cognitive flexibility concerning delusions. The present paper presents a follow-up evaluation 18 months after baseline.

METHOD

Forty-seven (78% of original n = 60) participants were available for follow-up at 18 months, and were reassessed on all the original outcome measures (see Part I). An economic evaluation was also completed.

RESULTS

Those in the CBT treatment group showed a significant and continuing improvement in Brief Psychiatric Rating Scale scores, whereas the control group did not change from baseline. Delusional distress and the frequency of hallucinations were also significantly reduced in the CBT group. The costs of CBT appear to have been offset by reductions in service utilisation and associated costs during follow-up.

CONCLUSIONS

Improvement in overall symptoms was maintained in the CBT group 18 months after baseline and nine months after intensive therapy was completed. CBT may be a specific and cost-effective intervention in medication-resistant psychosis.

The association between tumour progression and vascularity in the oral mucosa

Tumourigenesis in experimental models is associated with the formation of new blood vessels (angiogenesis). Recent studies have suggested that tumour angiogenic activity may be inferred in histological sections by measuring the density of the vasculature. The purpose of this study was to determine whether the transition from normal to dysplastic and neoplastic tissue in the oral mucosa is accompanied by quantitative or qualitative changes in the vascularity of the tissue, and how the estimate of vascularity is influenced by the vessel marker and method of assessment. A total of 100 specimens of normal oral mucosa, dysplastic lesions, and squamous cell carcinomas were examined. Sections were immunostained with the pan-endothelial antibodies to von Willebrand Factor (vWF) and CD31, or with an antibody to the alpha v beta 3 integrin, previously reported to be a marker of angiogenic vessels. Vascularity was quantitated by two different methods: highest microvascular density (h-MVD) and microvascular volume, as determined by point counting (MVV). The results showed that vascularity, measured by the MVV method using antibodies to either vWF or CD31, increased significantly (P < 0.0001) with disease progression from normal oral mucosa, through mild, moderate, and severe dysplasia to early and late carcinoma (76 paraffin-embedded tissues examined). In contrast, h-MVD did not discriminate between dysplastic lesions and carcinoma. A similar percentage of the total vessel volume (MVV) and density (h-MVD) were positive for alpha v beta 3 in 24 frozen tissues examined, including normal oral mucosa. It is concluded that there is a close association between vascularity and tumour progression in the oral mucosa. Morphometric analysis reflecting microvascular volume is more informative than the currently popular analysis of microvascular density. The expression of alpha v beta 3 in the vasculature of oral tissues does not necessarily reflect the presence of angiogenic vessels.

Integration of mental health care into primary care. Demonstration cost-outcome study in India and Pakistan

BACKGROUND

Targeting resources on cost-effective care strategies is important for the global mental health burden.

AIMS

To demonstrate cost-outcome methods in the evaluation of mental health care programmes in low-income countries.

METHOD

Four rural populations were screened for psychiatric morbidity. Individuals with a diagnosed common mental disorder were invited to seek treatment, and assessed prospectively on symptoms, disability, quality of life and resource use.

RESULTS

Between 12% and 39% of the four screened populations had a diagnosable common mental disorder. In three of the four localities there were improvements over time in symptoms, disability and quality of life, while total economic costs were reduced.

CONCLUSION

Economic analysis of mental health care in low-income countries is feasible and practicable. Our assessment of the cost-effectiveness of integrating mental health into primary care was confounded by the naturalistic study design and the low proportion of subjects using government primary health care services.

Lymphocytic sialadenitis in the major and minor glands: a correlation in postmortem subjects

In the present investigation, the prevalence of focal lymphocytic adenitis in the submandibular salivary gland was observed in a series of 116 postmortem subjects after suitable exclusions had been made. Focal lymphocytic adenitis could not be demonstrated in the labial salivary glands. The degree of lymphocytic infiltration in the labial salivary glands is positively correlated with the level of focal lymphocytic adenitis in the submandibular glands in the same subject. Lymphocytic foci and lymphocytic infiltrations found under these circumstances are probably related. This finding provides conceptual support for the examination, by biopsy, of the labial glands in patients suspected of Sjögren's syndrome.

An analysis of mandibular fractures in Dundee, Scotland (1977 to 1985)

A retrospective study was undertaken to assess mandibular fractures presenting over the period 1977-1985 in Dundee, Scotland. The data collected included age, sex, aetiology, month in which injury occurred, anatomical site of fracture, associated maxillofacial trauma and treatment modalities. The majority of fractures were sustained by males in the age group 20 to 29 years. Assault was the major cause of trauma followed by falls and road traffic accidents. The posterior body region was found to be the most common fracture site in the mandible. The level of such trauma has more than doubled, since a similar study was undertaken between the years 1961 to 1970.

Subpopulations of fetal-like gingival fibroblasts: characterisation and potential significance for wound healing and the progression of periodontal disease

Wound healing in the adult is commonly compromised by excessive scar formation. In contrast, fetal wound healing is a regenerative process characterised by the conspicuous absence of scarring. Available evidence suggests that phenotypic differences between fetal and adult fibroblasts are important determinants of these distinct modes of tissue repair. In this context, a number of groups (including our own) have documented differences between fetal and adult fibroblasts with respect to such potentially relevant characteristics as migratory activity, motogenic response to cytokines and the synthesis of motility factors, cytokines and matrix macromolecules. The oral mucosa appears to be a privileged site in the adult in that it continues to display a fetal-like mode of wound healing. Data are presented in this review indicating that a subpopulation of gingival fibroblasts expresses several 'fetal-like' phenotypic characteristics. These observations are discussed in terms of both the continued expression of a fetal-like mode of wound healing in the oral mucosa and the possible differential involvement of distinct fibroblast subpopulations in the progression of periodontal disease.

QALYs and mental health care

Quality-adjusted life year measures (QALYs) have been fervently debated by researchers and decision makers concerned with resource allocation in the health care sector. They have been heralded as important aids to planning and priority setting, but also criticised on technical and ethical grounds. This paper examines these arguments with special reference to mental health care, the intention being to highlight the strengths and shortcomings of QALYs in this context. Issues pertinent to the application of QALYs in health care evaluation more generally are also reviewed. Whilst the rationale and underlying principles of the utility measurement approach are sound, the generic QALY as it is currently constructed represents an insensitive measure of the outcomes of mental health care. In the event of an increasingly QALY-driven priority-setting environment, however, abandonment of QALYs runs the risk of inappropriately marginalising people with mental illnesses in the resource allocation process. This opens up the possibility of developing a mental-health specific measure of utility that, in combination with cost data, would provide useful and appropriate summary information across treatments and programmes of mental health care.

Community outreach for untreated schizophrenia in rural India: a follow-up study of symptoms, disability, family burden and costs

BACKGROUND

In resource-poor countries, there remains an alarming treatment gap for people with schizophrenia, particularly those living in rural areas. Decentralization of mental health services, including community-based outreach programmes, represents one obvious strategy for bringing appropriate care to these communities. This study set out to assess the costs and effects of such a programme in rural Karnataka in India.

METHOD

Eight rural communities were visited by an outreach team, who identified cases of drug-naive or currently untreated schizophrenia. Recruited cases were provided with appropriate psychotropic medication and psychosocial support, and after obtaining informed consent were assessed every 3 months over one and a half years on symptomatology, disability, family burden, resource use and costs. A repeated-measures analysis was carried out to test for significant change in these outcome measures over this period.

RESULTS

A total of 100 cases of untreated schizophrenia were recruited, of whom 28% had never received antipsychotic medication and the remaining 72% had not been on medication for the past 6 months. Summary scores for psychotic symptoms, disability and family burden were all reduced significantly, with particular improvement observed at the first follow-up assessment. Increases in treatment and community outreach costs over the follow-up period were accompanied by reductions in the costs of informal-care sector visits and family care-giving time.

CONCLUSIONS

Efforts to organize community-based care such as outreach services for people with schizophrenia living in more remote areas of resource-constrained countries can bring substantial benefits to patients and families alike.

p53 protein in odontogenic cysts: increased expression in some odontogenic keratocysts

AIMS

To assess p53 protein expression in a range of odontogenic cysts arising in the mouth, including those of developmental and inflammatory origin.

METHODS

p53 protein was identified using the polyclonal antibody CM-1, together with a standard immunoperoxidase technique. A total of 36 cystic lesions were examined, all of which were histologically benign.

RESULTS

Expression of p53 protein was identified within the lining of five of 12 odontogenic keratocysts but was not detected in the other cystic lesions in the series.

CONCLUSIONS

This is believed to be the first report that identifies increased expression of p53 protein in benign cystic epithelium. The increased expression of p53 protein in the nucleus is usually associated with malignant disease. These findings are relevant to the management of odontogenic keratocysts which have a tendency to recur, and also to Gorlin Goltz syndrome in which keratocysts and multiple basal cell carcinomas are features.

Vascular endothelial growth factor (VEGF) expression in oral tissues: possible relevance to angiogenesis, tumour progression and field cancerisation

The aim of this study was to assess whether vascular endothelial growth factor (VEGF) expression in oral tissues is associated with angiogenesis, disease progression or field cancerisation. Vascularity and VEGF immunoreactivity were quantified in 68 archival specimens including normal oral mucosa (NOM), dysplasia (DYS) and squamous cell carcinoma (SCC). Vascularity increased significantly with disease progression; it was also higher in NOM adjacent to SCC than in NOM from healthy tissue, suggesting an association with field cancerisation. VEGF expression in epithelial cells was evaluated using two antibodies and three indices. VEGF indices and vascularity were not directly correlated. The expression of VEGF was similar in all DYS and NOM specimens, whether or not adjacent to a concurrent lesion. A comparison of SCC with NOM or DYS led to opposite results, depending on the VEGF antibody and index used. We conclude that VEGF expression in the oral mucosa may play a physiological role, but does not appear to be associated with angiogenesis, field cancerisation or transition to dysplasia. Further studies concerned with tumour development require examining specific VEGF isoforms and standardisation of the methodology.

Apoptosis, proliferation, and angiogenesis in oral tissues. Possible relevance to tumour progression

Experimental animal models have demonstrated that angiogenesis is essential for tumour progression, whilst sustained tumour growth requires a positive balance between tumour cell proliferation and cell death (apoptosis). The aim of this study was to determine the relative contribution of apoptosis, proliferation, and angiogenesis to disease progression in the oral mucosa. Histological sections of 47 archival specimens were examined; these included four groups of oral tissues: normal mucosa (n=12), moderate dysplasia (n=11) severe dysplasia (n=6), and squamous cell carcinoma (n=18). Apoptotic cells were visualized by in-situ end-labelling of DNA, proliferative cells by staining with Ki-67 antibody, and blood vessels with von Willebrand factor (vWF) antibody. One-way analysis of variance showed that indices of apoptosis (AI), proliferation (PI), and angiogenesis (vascularity) increased significantly with disease progression from normal oral mucosa, through dysplasia, to carcinoma (p<0.0001 for every index). The increase from normal mucosa to moderate dysplasia was significant for PI and vascularity, but not for AI. In contrast, the increase from dysplasia to carcinoma was significant for AI and vascularity, but not for PI. These data suggest that disease progression in the oral mucosa is accompanied by angiogenesis and increases in both epithelial proliferation and apoptosis. Net epithelial growth results from proliferation starting earlier and proceeding at a higher rate than apoptosis.

Two outbreaks of Salmonella enteritidis phage type 4 infection associated with the consumption of fresh shell-egg products

In 1988 there were two outbreaks of infection with Salmonella enteritidis phage type 4 in adjacent local authorities. The first affected 18 of 75 helpers and guests who attended a private function. Investigations revealed that home-made vanilla ice-cream containing uncooked eggs was the vehicle of infection and the causative organism was identified at the premises of the egg producer. The second affected 84 of 422 delegates attending a conference dinner, and 12 of 50 hotel staff at risk. A dessert made with lightly-cooked egg yolk and raw egg white was associated with infection, and the epidemic strain was cultured from the shell of an egg and an environmental sample from the producer's farm. It is of interest that one outbreak involved free-range and one battery-produced eggs, and that in one the vehicle was prepared at home and in the other in commercial premises. In neither incident was any deficiency in standards of egg production or catering practice discovered.

The cost consequences of changing the hospital-community balance: the mental health residential care study

BACKGROUND

Altering the balance of provision between hospital and community care is a key and often contentious component of mental health care policy in many countries. Implementation of this policy in the UK has been slowed by the apparent shortage of suitable community accommodation for people with long-term needs for care and support. Among the consequences could be the silting up of hospital beds by people who could be supported more appropriately elsewhere, in turn denying in-patient treatment to people with acute psychiatric problems and unnecessarily pushing up health service expenditure.

METHODS

Using data collected in a survey of hospital and residential accommodation services and their residents in eight areas of England and Wales, the cost components of today's balance of care were explored. Comprehensive costs were calculated and their associations with resident characteristics examined using multiple regression analyses.

RESULTS

On a like-with-like basis, the costs of hospital in-patient treatment for inappropriately placed patients greatly exceeded the costs of community-based care.

CONCLUSION

Further reduction of hospital beds, however, is not the panacea for an appropriate balance of mental health care, given the unknown but potentially considerable extent of unmet demand, as well as the impact of previous in-patient bed reductions apparent in the services surveyed. Rather, service providers and purchasers should focus on developing community-based care (including increased provision of 24-hour nursed beds) by ensuring that resources released through earlier closure programmes have been redeployed for their intended use and by accessing additional pump-priming or bridging resources.

A qualitative and quantitative study of the ageing human labial salivary glands

A series of 36 post-mortem labial salivary glands from both male and female subjects with ages ranging from 25 to 80 yr were examined histologically. Features such as acinar atrophy, fibrous replacement and ductal aberrations were noted in the aged glands. By the stereological method of point counting, the volume proportions of various defined gland constituents were calculated for individual glands in the series. An age-related decrease in acinar volume proportion and an increase in ductal and connective tissue volume proportion is recorded. These changes should be considered when diseased glands are studied.

The mental health residential care study: classification of facilities and description of residents

BACKGROUND

The NHS is no longer a virtual monopoly provider of mental health residential care. This makes it difficult to assess the volume, range and adequacy of local provision.

METHOD

Local data collectors used standard instruments to collect detailed information about 368 facilities (with 1951 residents) providing mental health residential care in eight districts. Because local definitions were inconsistent, facilities were reclassified on the basis of facility size and extent of day and night cover. The eight categories of accommodation are compared on levels of staffing, staff qualifications and the characteristics of their residents.

RESULTS

There was a nearly threefold variation between districts in the total number of residential places available per unit of population, and even greater variation in the number of places with 24-hour waking cover. Most residents have long-term, severe mental illness and severe impairment. Long-stay wards accommodate people who pose greater risk of violence than do the two types of non-hospital facility with 24-hour waking cover (P < 0.001). The former also employ a much greater proportion of staff with formal care qualifications and, in particular, nursing qualifications than the latter (49% v. 15%, P < 0.001).

CONCLUSIONS

It is suggested that one consequence of the diversification in provision of mental health residential accommodation has been a relative reduction in the proportion of provision available to the most severely disabled. This might apply particularly to those who pose a risk of acting violently.

Toward real-world sequencing by microdevice electrophoresis

We report results using a microdevice for DNA sequencing using samples from chromosome 17, obtained from the Whitehead Institute Center for Genome Research (WICGR) production line. The device had an effective separation distance of 11.5 cm and a lithographically defined injection width of 150 microm. The four-color raw data were processed, base-called by the sequencing software Trout, and compared to the corresponding ABI 377 sequence from WICGR. With a criteria of 99% accuracy, we achieved average continuous reads of 505 bases in 27 min with 3% linear polyacrylamide (LPA) at 150 V/cm, and 460 bases in 22 min with 4% LPA at 200 V/cm at a temperature of 45 degrees C. In the best case, up to 565 bases could be base-called with the same accuracy in <25 min. In some instances, Trout allowed for accurate base-calling down to a resolution R as low as R = 0.35. This may be due in part to the high signal-to-noise ratio of the microdevice. Unlike many results reported on capillary machines, no additional sample cleanup other than ethanol precipitation was required. In addition, DNA fragment biasing (i.e., discrimination against larger fragments) was reduced significantly through the unique sample injection mechanism of the microfabricated device. This led to increased signal strength for long fragments, which is of great importance for the high performance of the microdevice.