PubMed Health⌕ Search

Biomedical subjects

L Jacobsson

Publications and source records attributed to L Jacobsson.

At least 19 recordsLinked to original sources

Increased stiffness of the abdominal aorta in women with rheumatoid arthritis.

OBJECTIVE: To study the distensibility and the diameter of the abdominal aorta and the common carotid artery (CCA) in patients with rheumatoid arthritis (RA), and investigate the relation between mechanical properties of these arteries and disease severity. METHODS: One hundred and one patients with RA (33 consecutive cases with extra-articular manifestations, and 68 subjects with non-extra-articular disease, matched for age, sex and disease duration) were investigated. Echo-tracking ultrasonography was used to measure stiffness and mean diameter of the abdominal aorta and the CCA. The patients were compared with healthy individuals from the corresponding age group (n=74 for measurements of the aorta, n=64 for the CCA). Predicted values for stiffness and mean diameter, based on age and sex, were calculated. RESULTS: Stiffness of the abdominal aorta was increased in women with RA [mean percentage of predicted value (% predicted) 180; 95% confidence interval (95% CI) 150-211] but not in men (% predicted 99; 95% CI 75-122). CCA stiffness was less markedly increased, and mean diameters of the aorta and the CCA were not different from the expected. In the RA cohort, patients with extra-articular manifestations tended to have greater stiffness of the aorta (P=0.11), and disability, as indicated by a higher Health Assessment Questionnaire score, was associated with increased aortic stiffness (P=0.04). CONCLUSION: RA is associated with decreased distensibility of the abdominal aorta in females, and such changes seem to correlate with disease severity. We suggest that arterial stiffness is an important factor in cardiovascular co-morbidity in RA.

Aged↗

Increased incidence of cardiovascular disease in patients with rheumatoid arthritis: results from a community based study.

OBJECTIVE: To investigate the first-ever incidence of acute myocardial infarction and stroke in a community based RA cohort compared with the general population. METHODS: The RA cohort consisted of all patients in a local RA register in Malmö, Sweden (n = 1022). The patients were recruited from private and hospital based rheumatology practices, and made up the absolute majority of patients with RA in the city. The general population of Malmö, aged 16 and above, served as controls. From the Swedish National Hospital Discharge Register and the national Swedish Causes of Death Register, information about all first-ever myocardial infarctions and strokes in Malmö residents between July 1997 and December 1999 was retrieved. The age and sex adjusted standardised morbidity ratio (SMR) of the two cohorts was calculated. RESULTS: Fifty four patients with RA had first-ever myocardial infarctions or stroke during the study period, compared with 3862 subjects in the general population. The age and sex adjusted SMR was 161 (95% confidence interval (CI) 121 to 210). The first-ever incidence of cardiovascular disease was increased among female and male patients when studied separately. The increase of cardiovascular events in the RA cohort was mainly due to an excess of myocardial infarctions (n = 36; SMR = 176 (95% CI 123 to 244). CONCLUSION: Patients with RA in Malmö had an increased first-ever incidence of myocardial infarction or stroke compared with the general population. This confirms that cardiovascular comorbidity is of major importance in RA.

Adolescent↗

Psychiatric services and training for children and adolescents in Europe: results of a country survey.

Mental health budgets, services and programs are seldom commensurate with mental health needs in the countries, particularly of population groups whose voice in advocacy is weak. In this inquiry we explored the adequacy of mental health care resources available for the young in Europe. To achieve this objective this survey investigated a few variables (e. g., number of services, degree of coverage, trained personnel) that were used as gross indicators of the discrimination suffered by this health sector. We sent a short postal questionnaire to the mental health focal points of the 51 countries included in the World Health Organization European Region. Thirty six countries (70.5 %) responded. The results showed that the degree of coverage and quality of services for the young were generally worse in comparison with those for adults, including for serious disorders. A lack of both specialized and in-training personnel was identified. The exposure of general practitioners and pediatricians to psychiatry for the young was limited. Generally, the lower the income level of the country the worse the situation. Our mapping confirmed findings of previous inquiries. European child psychiatry leaders had raised a set of recommendations to improve the current situation; their implementation can now benefit from novel strategies adopted by the World Health Organization to advance mental health worldwide.

Adolescent↗

Neurological soft signs in bipolar I disorder patients.

BACKGROUND: Neurological soft signs (NSS) have been reported to be more prevalent in patients with schizophrenia compared to other psychiatric and non-psychiatric controls. However, this issue in bipolar I disorder seems to be understudied. AIMS: The aims of the study were to examine the extent to which NSS are associated with bipolar I disorder cases compared to healthy controls, to assess the possible relationship between NSS and clinical dimensions of the disorder, and to explore the association of sociodemographic characteristics with the occurrence of NSS in cases with this disorder. METHODS: Predominantly treatment naïve cases of bipolar I disorder from rural communities were assessed for NSS using the Neurological Evaluation Scale (NES). RESULTS: This study showed that patients with bipolar I disorder performed significantly worse on two NES items from the sensory integration subscale, on one item from motor coordination and on four items from the 'others' subscale, the highest difference in performance being in items under the sequencing of complex motor acts subscale. Clinical dimensions and sociodemographic characteristics appeared to have no relationship with NES total score. CONCLUSIONS: Bipolar I disorder patients seem to have more neurological dysfunction compared to healthy controls particularly in the area of sequencing of complex motor acts. In addition, the finding suggests that NSS in bipolar I disorder are stable neurological abnormalities established at its onset or may be essential characteristic features of the disorder representing stable disease process that existed long before its onset.

Adolescent↗

Assignment of fourteen microsatellite markers to the chicken linkage map.

A large mapping population, with 874 F2 individuals, was generated by reciprocally intercrossing 2 chicken lines. A genetic map of 2,426.6 cM comprising 25 linkage groups was established based on 145 microsatellite markers. Chromosome locations were assigned for 14 previously unmapped markers. The marker ADL0132 was previously mapped to chromosome 9; however, here close linkage to the MCW0091 marker on chromosome 4 was found. With this exception, the derived linkage map was in excellent agreement with the chicken consensus map. A comparison with the chicken genome assembly (http://genome.ucsc.edu; February 2004) suggested a few minor errors in the assembly. A PCR-RFLP test was used to genotype a single nucleotide polymorphism in the melanocortin receptor 3 (MC3R) gene in the intercross, and pyrosequencing was used to map the genes for Hemopoetic Cell Kinase (HCK) and Bone Morphogenic Protein 7 (BMP7). The HCK and BMP7 genes on linkage group E32 showed significant linkage to MC3R on the distal end of linkage group E47W24, consequently joining the 2 linkage groups. A comparison between the linkage data in the current study and the physical location of markers as revealed in the chicken genome sequence assembly (February 2004) showed a 3-fold higher recombination rate on microchromosomes than on macrochromosomes.

Animals↗

Physicians' perceptions of possibilities and obstacles prior to implementing a computerised drug prescribing support system.

Seeks to identify physicians' perceptions of possibilities and obstacles prior to implementing a computerised drug prescribing support system. Details a descriptive, qualitative study, with semi-structured individual interviews of 21 physicians in the Accident and Emergency Department of South Stockholm General Hospital. Identifies four descriptive categories for possibilities and obstacles. Concludes that gaining access to patient drug history enables physicians to carry out work in a professional way--a need the computerised prescription support system was not developed for and thus cannot fulfil. Alerts and producer-independent drug information are valuable in reducing workload. However, technical prerequisites form the base for a successful implementation. Time must be given to adapt to new ways of working.

Attitude of Health Personnel↗

Schizophrenia: illness impact on family members in a traditional society--rural Ethiopia.

BACKGROUND: Studies have consistently shown that both the subjective and objective dimensions of burden among family members of schizophrenia patients and other psychiatric disorders are prevalent. However, as most of these reports were from western societies, we lack information on the subject in developing countries. METHOD: The study was conducted within the framework of the ongoing epidemiological study of course and outcome of schizophrenia and bipolar disorders in a rural population of 15-49 years of age. Three hundred and one cases of schizophrenia and their close relatives participated in the study. RESULTS: Family burden is a common problem of relatives of cases with schizophrenia. Financial difficulty is the most frequently endorsed problem among the family burden domains (74.4 %). Relatives of female cases suffered significantly higher social burden (Z = 2.103; p = 0.036). Work (Z = 2.180; p = 0.029) and financial (Z = 2.088; p = 0.037) burdens affected female relatives more often than males. Disorganised symptoms were the most important factors affecting the family members in all family burden domains. Prayer was found to be the most frequently used coping strategy in work burden (adj. OR = 1.99; 95 % CI = 1.08-3.67; p = 0.026). CONCLUSION: Negative impact of schizophrenia on family members is substantial even in traditional societies such as those in Ethiopia where family network is strong and important. The scarce existing services in the developing countries should include family interventions and support at least in the form of educating the family members about the nature of schizophrenia illness and dealing with its stigma and family burden.

Adaptation, Psychological↗

Onset and clinical course of schizophrenia in Butajira-Ethiopia--a community-based study.

BACKGROUND: There are reports on favourable course and outcome of schizophrenia in lowincome countries. The aim of the present study was to examine onset and clinical course of the illness in a community-based sample in rural Ethiopia based on crosssectional information. METHOD: A two-stage survey was carried out in Butajira-Ethiopia, a predominantly rural district. Altogether 68,378 individuals aged 15-49 years were CIDI-interviewed, of whom 2,159 were identified as cases according to the CIDI interview with regard to psychotic or affective disorders. Key informants identified another group of 719 individuals as being probable cases and a total of 2,285 individuals were SCAN-interviewed. The present paper reports on cases with schizophrenia. RESULTS: There were 321 cases of schizophrenia giving an estimated lifetime prevalence of 4.7/1,000). Of the cases,83.2% (N = 267) were males. Mean age of first onset of psychotic symptoms for males was 23.8 (sd 8.6) compared to 21.0 (sd 7.8) for females (P = 0.037; 95 %CI 0.16-5.47). Over 80% had negative symptoms and over 67% reported continuous course of the illness. Less than 10% had a history of previous treatment with neuroleptic medication. About 7% were vagrants, 9 % had a history of assaultive behaviour,and 3.8% had attempted suicide. The male to female ratio was nearly 5:1. CONCLUSION: This large community-based study differs from most previous studies in terms of higher male to female ratio, earlier age of onset in females and the predominance of negative symptoms.

Adolescent↗

The twofold difference in adult size between the red junglefowl and White Leghorn chickens is largely explained by a limited number of QTLs.

A large intercross between the domestic White Leghorn chicken and the wild ancestor, the red junglefowl, has been used in a Quantitative Trait Loci (QTL) study of growth and egg production. The linkage map based on 105 marker loci was in good agreement with the chicken consensus map. The growth of the 851 F2 individuals was lower than both parental lines prior to 46 days of age and intermediate to the two parental lines thereafter. The QTL analysis of growth traits revealed 13 loci that showed genome-wide significance. The four major growth QTLs explained 50 and 80% of the difference in adult body weight between the founder populations for females and males, respectively. A major QTL for growth, located on chromosome 1 appears to have pleiotropic effects on feed consumption, egg production and behaviour. There was a strong positive correlation between adult body weight and average egg weight. However, three QTLs affecting average egg weight but not body weight were identified. An interesting observation was that the estimated effects for the four major growth QTLs all indicated a codominant inheritance.

Alleles↗

Evaluation of various attenuation corrections in lung SPECT in healthy subjects.

The effect of increasingly more sophisticated attenuation correction methods on image homogeneity has been studied in seven healthy subjects. The subjects underwent computed tomography (CT), single photon emission computed tomography (SPECT) and transmission computed tomography (TCT) of the thorax region in the supine position. Density maps were obtained from the CT and TCT studies. Attenuation corrections were performed using five different methods: (1) uniform correction using only the body contour; (2) TCT based corrections using the average lung density; (3) TCT based corrections using the pixel density; (4) CT based corrections using average lung density; and (5) CT based corrections using the pixel density. The isolated attenuation effects were assessed on quotient images generated by the division of images obtained using various attenuation correction methods divided by the non-uniform attenuation correction based on CT pixel density (reference method). The homogeneity was calculated as the coefficient of variation of the quotient images (CV(att)), showing the isolated attenuation effects. Values of CV(att) were on average 12.8% without attenuation correction, 10.7% with the uniform correction, 8.1% using TCT map using the average lung density value and 4.8% using CT and average lung density corrections. There are considerable inhomogeneities in lung SPECT slices due to the attenuation effect. After attenuation correction the remaining inhomogeneity is considerable and cannot be explained by statistical noise and camera non-uniformity alone.

Adult↗

Increased liver echogenicity at ultrasound examination reflects degree of steatosis but not of fibrosis in asymptomatic patients with mild/moderate abnormalities of liver transaminases.

AIMS: To investigate whether hyperechogenicity of liver can reliably be interpreted as liver steatosis and if any concomitant or isolated fibrosis can be disclosed. PATIENTS AND METHODS: A series of 165 patients with no signs or symptoms of liver disease referred because of slightly to moderately raised aminotransferases (alanine aminotransferase and/or aspartate aminotransferase 0.7-5.0 microkat/l) for more than 6 months were prospectively investigated with a comprehensive laboratory profile, ultrasound examination of liver and percutaneous liver biopsy Fibrosis was assessed quantitatively and according to Metavir. Steatosis was graded as none, mild, moderate or severe. RESULTS: Of 98 (59.4%) patients with raised echogenicity, 85 (86.7%) had liver steatosis of at least moderate degree, 9 patients with same degree of steatosis had normal echogenicity and 13 patients with no or only mild steatosis had a hyperechogenic liver (sensitivity 0.90, specificity 0.82, positive predictive value 0.87, negative predictive value 0.87). About the same relations were found regardless of body mass index and degree of fibrosis. With increased echogenicity together with high attenuation (n = 591 and reduced portal vessel wall distinction (n = 79), positive predictive value increased to 0.93 and 0.94, respectively. Quantitatively assessed fibrosis (mean +/- SD) was 3.2 +/- 4.6% of biopsy area with normal and 2.3 +/- 1.8% with raised echogenicity (ns). Echogenicity was normal in 5 out of 9 patients with septal fibrosis and in 4 out of 6 patients with cirrhosis. Any structural, non-homogenous findings at ultrasound were not associated with architectural fibrotic changes and none had nodular contours of liver surface. CONCLUSIONS: Assessment of liver echogenicity is of value for detection or exclusion of moderate to pronounced fatty infiltration (correct classification 86.6%) but cannot be relied upon in diagnosing fibrosis, not even cirrhosis in asymptomatic patients with mild to moderately elevated liver transaminases.

Adult↗

Neurological soft signs (NSS) in 200 treatment-naïve cases with schizophrenia: a community-based study in a rural setting.

Several studies have reported neurological soft signs (NSS) to be common in individuals with schizophrenia. The majority of these studies are based on clinical samples exposed to neuroleptic treatment. The present study reports on 200 treatment-naïve and community-identified cases of schizophrenia and 78 healthy individuals from the same area, evaluated using the Neurological Evaluation Scale (NES). The median NES score was 5.0 for cases of schizophrenia and 1.5 for healthy subjects. The impairment rate of NSS in cases with schizophrenia was 65.0% against 50.0% in healthy subjects, and the difference was statistically significant (chi2 = 5.30; df = 1; P < 0.021). NSS abnormality is as common in treatment-naïve cases as reported in many studies in those on neuroleptic medication. There was no significant relation between the NSS impairment and duration of illness, remission status, positive symptoms, negative symptoms and disorganized symptoms.

Adolescent↗

An evaluation of two screening methods to identify cases with schizophrenia and affective disorders in a community survey in rural Ethiopia.

BACKGROUND: Detecting cases with psychiatric disorders in the general population is costly and it is not clear which is the method of choice for community surveys in low-income countries. AIM: To compare the performance of a standardized diagnostic layman interview instrument--the Composite International Diagnostic Interview (CIDI 2.1) versus the Key Informant method in identifying cases with schizophrenia and major affective disorders in a community survey. METHOD: Both screening methods were tested against an expert interview--the Schedule for Clinical Assessment in Neuropsychiatry (SCAN 2.1) in a rural district in Ethiopia with 25,632 inhabitants. RESULT: CIDI identified 524 and key informants 192 individuals as probable cases who were invited for a further SCAN interview. Seventy-two individuals were identified by both methods. Of those identified as probable cases by either method, a total of 481 volunteered the SCAN interviews. The Key Informant method alone detected more cases of schizophrenia, 59 vs. 29 for CIDI, whereas CIDI alone detected more cases of affective disorders, 45 vs. 30. Key informants performed better in detecting chronic cases. CONCLUSION: For community surveys, which aim at identifying cases with major mental disorders in low-income countries like Ethiopia, the combined use of both CIDI and the Key Informant method is recommended.

Adolescent↗

Clinical manifestations of atherosclerosis in an elderly population are related to plasma neopterin, NGAL and endothelin-1, but not to Chlamydia pneumoniae serology.

BACKGROUND: Inflammatory mediators secreted by leukocytes are implicated in atherogenesis. Chlamydia (C.) pneumoniae infection has been suggested as a trigger of this process. We investigated relationships between C. Pneumoniae serology, inflammatory mediators and symptomatic cardiovascular disease in old age. METHODS: In a cross-sectional study at baseline with a prospective 4 year follow-up, intraplatelet cyclic 3'-5'adenosine monophosphate (cAMP) and cyclic 3'-5'guanosine monophosphate (cGMP), plasma neutrophil gelatinase associated lipocalin (NGAL), plasma soluble tumor necrosis factor receptor-1 (TNFR-1) plasma neopterin and plasma endothelin-1 (ET-1) were analysed together with IgG and IgA antibodies for C. Pneumoniae in an elderly reference population (n=140, median age 71 years, 71 females). Twenty-one subjects had clinical manifestations of cardiovascular disease at baseline and another 21 were diagnosed with cardiovascular disease during follow-up. RESULTS: In age adjusted logistic regression, subjects with cardiovascular disease showed higher plasma levels of neopterin (p=0.02), NGAL (p=0.04), and ET-1 (p<0.01). If subjects with cardiovascular disease at baseline were excluded from the analysis, higher plasma neopterin (p=0.01) and lower serum HDL cholesterol (p=0.03) predicted cardiovascular disease during follow-up. The presence of IgG or IgA against C. pneumoniae was not associated with cardiovascular disease. Neither were there any associations between inflammatory or endothelial parameters and C. pneumoniae serology. CONCLUSIONS: The inflammatory mediators neopterin and NGAL and endothelial derived vasoconstrictive ET-1 were increased in elderly subjects with symptomatic cardiovascular disease. Increased plasma neopterin predicted cardiovascular disease during follow-up. No relationships were found between C. Pneumoniae serology and cardiovascular disease.

Acute-Phase Proteins↗

[The Malmo model for private and public rheumatological outpatient care. Cooperation makes it possible to introduce disease modifying treatment quickly].

The Malmö model represents a close collaboration between private practitioners who receive public financing and hospital-based rheumatological clinics. A comparison of these two types of out-patient care was undertaken by questionnaire in 1997 (70% response rate). Of the total patient cohort in the study, 73% were seen by private rheumatologists. The evaluation showed very similar outcomes, regardless of drug treatment employed or professional personnel involved (i.e., a physician or other members of the rheumatological team). Minor differences concerned easier accessibility to physicians in private practice, and the large proportion of immigrants seen at the hospital clinic. The results of the study confirmed the similarity of care provided in both types of out-patient clinics. Improved pharmacological products for suppressing inflammation will lead to increasing demands on out-patient rheumatological care. The model described illustrates a method of meeting those demands.

Adult↗