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Castensøe-Seidenfaden P, Jensen AK, Smedegaard H, Hommel E, Husted GR, Pedersen-Bjergaard U, Teilmann G. Clinical, behavioural and social indicators for poor glycaemic control around the time of transfer to adult care: a longitudinal study of 126 young people with diabetes. Diabet Med 2017; 34:667-675. [PMID: 28099760 DOI: 10.1111/dme.13318] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 01/13/2017] [Indexed: 01/09/2023]
Abstract
AIMS To describe and compare changes in glycaemic control in young people with Type 1 diabetes over time between the last 2 years in paediatric care and the first 2 years in adult care and to identify risk factors for poor glycaemic control. METHODS Our retrospective cohort study followed participants aged 14-22 years from 2 years before to 2 years after transfer from paediatric to adult care. Changes in glycaemic control were calculated using repeated measurements. We adjusted for gender, age at diabetes onset, age at transfer, duration of diabetes at transfer, gap (amount of time) between last paediatric and first adult visit, comorbidity, learning disability and/or mental health conditions and family structure. We examined associations between acute hospital admissions, low visit attendance rate, loss to follow-up and baseline HbA1c level. RESULTS Among 126 participants, the mean HbA1c level was 80 mmol/mol (9.4%) pre-transfer but decreased by an average of 3 mmol/mol (0.3%) each year post-transfer (P = 0.005). Young people with a learning disability and/or a mental health condition had worse glycaemic control (P = 0.041) and the mean HbA1c of those with divorced parents was 14 mmol/mol (1.2%) higher (P = 0.014). Almost one-third of participants were admitted to the hospital for acute diabetes care. Low visit attendance rate, high baseline HbA1c level, learning disability and/or mental health conditions and divorced parents predicted acute hospital admissions. CONCLUSIONS Glycaemic control improved significantly after transfer to adult care, but the mean HbA1c level remained high. Future interventions should focus on young people with divorced parents, those with a learning disability and/or mental health condition and those who do not attend clinical visits to improve HbA1c levels and thereby reduce hospitalization rates.
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Affiliation(s)
| | - A K Jensen
- Biostatistics, Institute of Public Health, University of Copenhagen, Copenhagen, Denmark
- Department of Clinical Research, Nordsjaellands Hospital, Hillerød, Denmark
| | - H Smedegaard
- Paediatric and Adolescent Department, Nordsjaellands Hospital, Hillerød, Denmark
| | - E Hommel
- Steno Diabetes Centre, Gentofte, Denmark
| | - G R Husted
- Steno Diabetes Centre, Gentofte, Denmark
| | - U Pedersen-Bjergaard
- Department of Cardiology, Nephrology and Endocrinology, Nordsjaellands Hospital, Hillerød, Denmark
| | - G Teilmann
- Paediatric and Adolescent Department, Nordsjaellands Hospital, Hillerød, Denmark
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Abstract
BACKGROUND Previous studies of the outcome after perineal stapled prolapse resection (PSPR) have included a limited number of patients with a short follow-up and high recurrence rates. The present study was designed to assess the initial results, complications, recurrence rate, and outcomes up to 4 years after PSPR, as well as the need for a repeated procedure. METHODS Fifty-four consecutive patients with rectal prolapse (mean age 77.2 years, range 46-93 years; n = 3 men) were selected for PSPR between May 2009 and February 2015. Prolapse length was measured at baseline and after surgery. Patients were asked to grade intensity of symptoms as a satisfaction score of 1-10, 10 representing being symptom-free. RESULTS The mean operation time was 45.3 min (SD = 17.5, range 25-95 min). The mean rectal prolapse length was reduced significantly from 9.5 cm (SD = 5.0, range 4-30 cm) to 1.2 cm (SD = 2.6, range 0-10 cm; p < 0.0001). Bleeding requiring surgical intervention occurred in two patients (3.7%). Postoperative satisfaction score increased from a mean of 2.2 (SD = 0.9) to a mean of 6.4 (SD = 2.8, p ≤ 0.0001). After a mean follow-up of 13.4 months (SD = 14.1), six patients with recurrence underwent a new PSPR and five patients underwent colostomy, mainly because of incontinence, resulting in a recurrence rate of 20.4%. There were no complications after redo PSPR, and after a median of 10-month follow-up (range 6-37), there were no recurrences. CONCLUSIONS PSPR is a rather new surgical procedure for external rectal prolapse. Immediate complications are few and not serious. Although recurrences can be treated with a second PSPR, the operation may only be the best option for old and fragile patients with comorbidities and a short life expectancy.
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Affiliation(s)
- D Raahave
- Department of Surgery, North Zealand Hospital, Copenhagen University, 3400, Hillerød, Denmark.
| | - A K Jensen
- Section of Biostatistics, Institute of Public Health, Copenhagen University, Copenhagen, Denmark
| | - L Dammegaard
- Department of Surgery, North Zealand Hospital, Copenhagen University, 3400, Hillerød, Denmark
| | - I K Pedersen
- Department of Surgery, North Zealand Hospital, Copenhagen University, 3400, Hillerød, Denmark
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Jensen AK, Rechnitzer C, Macklon KT, Ifversen MRS, Birkebæk N, Clausen N, Sørensen K, Fedder J, Ernst E, Andersen CY. Cryopreservation of ovarian tissue for fertility preservation in a large cohort of young girls: focus on pubertal development. Hum Reprod 2016; 32:154-164. [PMID: 27816923 DOI: 10.1093/humrep/dew273] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2016] [Revised: 09/15/2016] [Accepted: 10/20/2016] [Indexed: 11/13/2022] Open
Abstract
STUDY QUESTION Is there an association between the need for medical puberty induction and the diagnosis or treatment received in girls who have undergone cryopreservation of ovarian tissue for fertility preservation? SUMMARY ANSWER There was a clear association between the intensity of treatment received and requirement for medical puberty induction but no association with the diagnosis. WHAT IS KNOWN ALREADY Although it cannot be predicted which girls will become infertile or develop premature ovarian insufficiency (POI) following intensive chemotherapy or irradiation, patients who are at high risk of POI should be offered ovarian tissue cryopreservation (OTC). This includes girls who are planned to receive either high doses of alkylating agents, conditioning regimen before stem cell transplantation (SCT), total body irradiation (TBI) or high radiation doses to the craniospinal, abdominal or pelvic area. STUDY DESIGN, SIZE, DURATION This is a retrospective cohort study. In total, 176 Danish girls under 18 years of age have had OTC performed over a period of 15 years. An overview of the girls' diagnoses and mean age at OTC as well as the number of deceased is presented. Of the 176 girls, 38 had died and 46 girls were still younger than 12 years so their pubertal development cannot be evaluated yet. For the 60 girls who had OTC performed after 12 years of age, the incidence of POI was evaluated and in the group of 32 girls who were younger than 12 years at OTC, the association between the diagnosis and received treatment and the requirement for medical puberty induction was examined. PARTICIPANTS/MATERIALS, SETTING, METHODS The need for medical puberty induction was assessed in 32 girls who were prepubertal at the time of OTC. MAIN RESULTS AND THE ROLE OF CHANCE Indications for OTC were allogeneic SCT for leukaemia, myelodysplastic syndrome or benign haematological disorders, autologous SCT for lymphoma or sarcoma, and irradiation to the pelvis or to the spinal axis. The mean age at OTC of the 176 girls were 11.3 years. The two most prevalent diagnoses of the 176 girls were malignant tumours and malignant haematological diseases. Among the 32 prepubertal girls, 12 received high dose chemotherapy and either TBI prior to SCT or irradiation to the pelvis, abdomen or the spinal axis, 13 received high dose alkylating agents but no irradiation prior to SCT, six received alkylating agents as part of conventional chemotherapy and one patient had a genetic metabolic disorder and did not receive gonadotoxic treatment. Among these 32 girls, 23 did not undergo puberty spontaneously and thus received medical puberty induction. Among the nine girls, who went through spontaneous puberty, four had received high dose alkylating agents and five had received conventional chemotherapy. LIMITATIONS REASONS FOR CAUTION All information was retrieved retrospectively from patient records, and thus some information was not available. WIDER IMPLICATIONS OF THE FINDINGS OTC should be recommended to all young girls, who present a high risk of developing ovarian insufficiency and/or infertility following high dose chemotherapy and/or irradiation. STUDY FUNDING/COMPETING INTERESTS The Childhood Cancer Foundation (2012-2016) and the EU interregional project ReproHigh are thanked for having funded this study. They had no role in the study design, collection and analysis of the data or writing of the report. The authors have no conflict of interest to disclose.
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Affiliation(s)
- A K Jensen
- Laboratory of Reproductive Biology, Juliane Marie Centre, Section 5712, Copenhagen University Hospital, Rigshospitalet, Blegdamsvej 9, DK-2100 Copenhagen, Denmark
| | - C Rechnitzer
- Department of Paediatrics and Adolescent Medicine, Juliane Marie Centre, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - K T Macklon
- Fertility Clinic, Juliane Marie Centre, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - M R S Ifversen
- Department of Paediatrics and Adolescent Medicine, Juliane Marie Centre, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - N Birkebæk
- Department of Paediatrics, Aarhus University Hospital, Skejby, 8200 Aarhus, Denmark
| | - N Clausen
- Department of Paediatrics, Aarhus University Hospital, Skejby, 8200 Aarhus, Denmark
| | - K Sørensen
- Department of Paediatrics and Adolescent Medicine, Juliane Marie Centre, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark.,Department of Growth and Reproduction, Juliane Marie Centre, Copenhagen University Hospital, Copenhagen, Denmark
| | - J Fedder
- Fertility Clinic, Odense University Hospital, 5000 Odense, Denmark
| | - E Ernst
- Fertility Clinic, Aarhus University Hospital, Skejby, Denmark
| | - C Yding Andersen
- Laboratory of Reproductive Biology, Juliane Marie Centre, Section 5712, Copenhagen University Hospital, Rigshospitalet, Blegdamsvej 9, DK-2100 Copenhagen, Denmark
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Jensen AK, Kristensen SG, Macklon KT, Jeppesen JV, Fedder J, Ernst E, Andersen CY. Outcomes of transplantations of cryopreserved ovarian tissue to 41 women in Denmark. Hum Reprod 2015; 30:2838-45. [PMID: 26443605 DOI: 10.1093/humrep/dev230] [Citation(s) in RCA: 125] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2015] [Accepted: 08/24/2015] [Indexed: 01/07/2023] Open
Abstract
STUDY QUESTION What are the results of transplanting cryopreserved ovarian tissue? SUMMARY ANSWER The transplanted ovarian tissue can last up to 10 years, with no relapses following the 53 transplantations, and the chance of a successful pregnancy is currently around one in three for those with a pregnancy-wish. WHAT IS KNOWN ALREADY Cryopreservation of ovarian tissue is now gaining ground as a valid method for fertility preservation. More than 36 children worldwide have now been born following this procedure. STUDY DESIGN, SIZE, DURATION This is a retrospective cohort study of 41 women who had thawed ovarian tissue transplanted 53 times over a period of 10 years, including 1 patient who was lost to follow-up. PARTICIPANTS/MATERIALS, SETTING, METHODS The 41 Danish women, who had in total 53 transplantations, were followed for ovarian function and fertility outcome. Safety was assessed by monitoring relapse in cancer survivors. MAIN RESULTS, AND THE ROLE OF CHANCE Among 32 women with a pregnancy-wish, 10 (31%) had a child/children (14 children in total); this included 1 woman with a third trimester on-going pregnancy. In addition, two legal abortions and one second trimester miscarriage occurred. A total of 24 clinical pregnancies were established in the 32 women with a pregnancy-wish. The tissue remained functional for close to 10 years in some cases and lasted only a short period in others. Three relapses occurred but were unlikely to be due to the transplanted tissue. LIMITATIONS, REASONS FOR CAUTION Self-report through questionnaires with only in-one hospital formalised follow-up of transplanted patients could result in unreported miscarriages. The longevity of the tissue may vary by few months compared with those reported because some patients simply could not remember the date when the tissue became non-functional. WIDER IMPLICATIONS OF THE FINDINGS Cryopreservation of ovarian tissue is likely to become integrated into the treatment of young women, with cancer, who run a risk of losing their fertility. The full functional lifespan of grafts is still being evaluated, because many of the transplanted women have continued to maintain ovarian activity. Some of our first cases have had tissue functioning for ∼ 10 years.
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Affiliation(s)
- A K Jensen
- Laboratory of Reproductive Biology, Copenhagen University Hospital, Rigshospitalet, 2100 Copenhagen, Denmark
| | - S G Kristensen
- Laboratory of Reproductive Biology, Copenhagen University Hospital, Rigshospitalet, 2100 Copenhagen, Denmark
| | - K T Macklon
- The Fertility Clinic, Copenhagen University Hospital, Rigshospitalet, 2100 Copenhagen, Denmark
| | - J V Jeppesen
- Laboratory of Reproductive Biology, Copenhagen University Hospital, Rigshospitalet, 2100 Copenhagen, Denmark
| | - J Fedder
- The Fertility Clinic, Odense University Hospital, 5000 Odense, Denmark
| | - E Ernst
- The Fertility Clinic, Aarhus University Hospital, Skejby, 8200 Aarhus, Denmark
| | - C Y Andersen
- Laboratory of Reproductive Biology, Copenhagen University Hospital, Rigshospitalet, 2100 Copenhagen, Denmark
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Kvistholm Jensen A, Ethelberg S, Smith B, Møller Nielsen E, Larsson J, Mølbak K, Christensen JJ, Kemp M. Substantial increase in listeriosis, Denmark 2009. Euro Surveill 2010. [DOI: 10.2807/ese.15.12.19522-en] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
In 2009, 97 cases of listeriosis were reported in Denmark (1.8 per 100,000), a significant rise over the previous year. The increase was seen both in cases of bacteraemia and meningitis and affected mainly people aged 70 years and older. A foodborne outbreak of eight cases was identified by pulsed-field gel electrophoresis typing. No explanation has so far been found for the marked increase in incidence. An increasing trend has been observed since 2003 and possible explanations are discussed.
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Affiliation(s)
- A Kvistholm Jensen
- Department of Microbiological Surveillance and Research, Statens Serum Institut, Copenhagen, Denmark
| | - S Ethelberg
- Department of Epidemiology, Statens Serum Institut, Copenhagen, Denmark
- Department of Microbiological Surveillance and Research, Statens Serum Institut, Copenhagen, Denmark
| | - B Smith
- Department of Microbiological Surveillance and Research, Statens Serum Institut, Copenhagen, Denmark
| | - E Møller Nielsen
- Department of Microbiological Surveillance and Research, Statens Serum Institut, Copenhagen, Denmark
| | - J Larsson
- Department of Microbiological Surveillance and Research, Statens Serum Institut, Copenhagen, Denmark
| | - K Mølbak
- Department of Epidemiology, Statens Serum Institut, Copenhagen, Denmark
| | - J J Christensen
- Department of Microbiological Surveillance and Research, Statens Serum Institut, Copenhagen, Denmark
| | - M Kemp
- Department of Microbiological Surveillance and Research, Statens Serum Institut, Copenhagen, Denmark
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Kvistholm Jensen A, Ethelberg S, Smith B, Moller Nielsen E, Larsson J, Molbak K, Christensen JJ, Kemp M. Substantial increase in listeriosis, Denmark 2009. Euro Surveill 2010; 15:19522. [PMID: 20350498] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/29/2023] Open
Abstract
In 2009, 97 cases of listeriosis were reported in Denmark (1.8 per 100,000), a significant rise over the previous year. The increase was seen both in cases of bacteraemia and meningitis and affected mainly people aged 70 years and older. A foodborne outbreak of eight cases was identified by pulsed-field gel electrophoresis typing. No explanation has so far been found for the marked increase in incidence. An increasing trend has been observed since 2003 and possible explanations are discussed.
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Affiliation(s)
- A Kvistholm Jensen
- Department of Microbiological Surveillance and Research, Statens Serum Institut, Copenhagen, Denmark.
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Ravn P, Demissie A, Eguale T, Wondwosson H, Lein D, Amoudy HA, Mustafa AS, Jensen AK, Holm A, Rosenkrands I, Oftung F, Olobo J, von Reyn F, Andersen P. Human T cell responses to the ESAT-6 antigen from Mycobacterium tuberculosis. J Infect Dis 1999; 179:637-45. [PMID: 9952370 DOI: 10.1086/314640] [Citation(s) in RCA: 233] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
Human T cell responses to ESAT-6 and eight synthetic overlapping peptides were investigated in tuberculosis (TB) patients and control subjects from regions of high and low endemicity for TB. ESAT-6 was recognized by 65% of all tuberculin purified protein derivative-responsive TB patients, whereas only 2 of 29 bacille Calmette-Guérin-vaccinated Danish healthy donors recognized this molecule. In Ethiopia, a high frequency (58%) of healthy contacts of TB patients recognized ESAT-6. All of the peptides were recognized by some donors, indicating that the molecule holds multiple epitopes. Danish and Ethiopian patients differed in the fine specificity of their peptide responses. Recognition of the C-terminal region (aa 72-95) was predominant in Danish patients, whereas recognition of aa 42-75 was predominant in Ethiopia. The relationship of these differences to the distribution of HLA types in the two populations is discussed. This study demonstrates that ESAT-6 is frequently recognized during early infection and holds potential as a component of a future TB-specific diagnostic reagent.
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Affiliation(s)
- P Ravn
- Department of Tuberculosis Immunology, Statens Serum Institut, 2300 Copenhagen 5, Denmark.
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Melbye M, Wohlfahrt J, Westergaard T, Jensen AK, Koch A, Hjalgrim H, Kristensen A, Aaby P. Births at Christmas are different: population based survey of 2 million deliveries. Christmas Paper Study Group. BMJ 1997; 315:1654-5. [PMID: 9448529 PMCID: PMC2128030 DOI: 10.1136/bmj.315.7123.1654] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- M Melbye
- Department of Epidemiology Research, Danish Epidemiology Science Centre, Statens Serum Institut, Copenhagen, Denmark.
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Abstract
We have previously demonstrated that genetically modified syngeneic murine tumor cells (KBALB) expressing the herpes simplex virus thymidine kinase gene (HSV-STK) can kill nearby unmodified tumor cells in the presence of ganciclovir (GCV). The killing was mediated by a 'bystander effect' as evidenced by the prolonged animal survival when syngeneic HSV-TK gene-modified tumor cells were inoculated into mice with an intraperitoneal tumor. In this study we investigated whether irradiated xenogeneic HSV-TK gene-modified tumor cells, a human colon carcinoma cell line (HCT) transfected with the HSV-TK gene, can mediate the 'bystander effect' when used in vitro and in vivo. In vitro experiments indicate that irradiated HSV-TK gene-modified xenogeneic cells (HCT) can mediate a bystander effect on the adjacent cells when the tumor population consisted of as few as 10% of the HSV-TK expressing HCT tumor cells. In vivo, animal survival experiments demonstrate that the xenogeneic gene-modified tumor cells could generate the 'bystander effect' in mice with intraperitoneal tumors as evidenced by prolonged animal survival. In addition, histologic examination of the tumors from experimental animals showed extensive tumor necrosis 3 days post HSV-TK/GCV treatment in comparison to control animals. To evaluate the cause of necrosis in vivo, we assayed for cytokines, which may be involved in mediating this process, by performing RT-PCR and immunohistochemistry on tumor RNA and tumor cells, respectively. Production of IL-1 alpha and IL-6 mRNA within the experimental tumors was observed by RT-PCR. However, mRNA expression for other cytokines including IFN-gamma, IL-2 and IL-4 was not present. Immunohistochemical analysis for IL-1 alpha protein showed reactivity within the infiltrating mononuclear cells indicating the release of this soluble factor. These results indicate that the bystander effect can be generated using irradiated xenogeneic cells both, in vitro and in vivo. Furthermore, this process is mediated by the release of cytokines such as IL-1 alpha, IL-6 which enhances the bystander effect in vivo by immunostimulation.
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Affiliation(s)
- S M Freeman
- Department of Pathology and Laboratory Medicine, Tulane University Medical School, New Orleans, LA 70112, USA
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Abstract
Eight commercial kits and an in-house ELISA for detection of IgG antibodies against Helicobacter pylori were evaluated for their use in diagnosis of H. pylori infection and in epidemiological research: Helico-GTM (Porton-Cambridge), G. A. P. test (Bio-Rad), H. pylori antibodies ELISA (Biometra), Anti-H. pylori IgG EIA (Roche), 2nd generation H. pylori EIA (Roche), Anti-H. pylori MTP-assay (Roche), Pylori stat test kit (Whittaker), Pyloriset latex agglutination kit (Orion), and the in-house ELISA based on heat-stable antigens. Fifty-four patients with dyspepsia (31 H. pylori positive by culture or microscopy) and 68 asymptomatic persons were tested. Sensitivities for the eight kits were 71%, 77%, 90%, 84%, 87%, 94%, 90%, 87%, and 87%, specificities were 74%, 65%, 74%, 74%, 83%, 83%, 70%, 65%, and 65%, respectively. For epidemiological use the estimated seroprevalence varied within approximately 15% in all age groups. Sensitivities and specificities obtained in different studies reveal as great differences in the results with the same kit as between results obtained with different kits in the same study. Kits with the highest sensitivities tend to be the same in all studies. It is therefore more important to test a kit in the population to which it is to be applied than to choose a specific kit.
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Affiliation(s)
- A K Jensen
- Department of Clinical Microbiology, University of Copenhagen, Rigshospitalet, Denmark
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Jensen AK, Andersen LP, Gaarslev K, Wachmann CH. Comparison of four second generation kits for detection of IgG antibodies against Helicobacter pylori in adults. Zentralbl Bakteriol 1993; 280:221-6. [PMID: 8280945 DOI: 10.1016/s0934-8840(11)80959-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Four serological kits for detection of IgG antibodies against H. pylori were tested on 132 adult patients with dyspeptic symptoms. Presence of H. pylori infection was established when either culture or microscopy of gastric biopsies were positive. The prevalence of H. pylori infection was 55% in the test population. With Anti-H. pylori MTP-assay (Roche), Pylori stat test kit (Whittaker), HM-CAP (Enteric Products Inc.) and Pyloriset EIA-G (Orion) the sensitivities were 97%, 95%, 81% and 68% respectively, the specificities were 53%, 56%, 71% and 69% respectively, the positive predictive values 72%, 74%, 79% and 74% respectively and the negative predictive values were 94%, 92%, 79% and 64% respectively.
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Affiliation(s)
- A K Jensen
- Department of Bacteriology, Statens Seruminstitute, Copenhagen S, Denmark
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Furberg H, Jensen AK, Salbu B. Effect of pretreatment with 0.9% sodium chloride or insulin solutions on the delivery of insulin from an infusion system. Am J Hosp Pharm 1986; 43:2209-13. [PMID: 3766574] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
The effect of pretreating a polyvinyl chloride i.v. administration system with sodium chloride or insulin solution on the delivery of insulin was studied. Insulin labeled with iodine 125 was added to human insulin, which was added to 0.9% sodium chloride injection packaged in flexible polyvinyl chloride containers and to 0.9% sodium chloride injection placed in empty ethylene vinyl acetate containers. Samples were tested for insulin content by gamma spectrometry after storage in the bags and after infusion through four different polyvinyl chloride administration sets at different flow rates. Effluent samples were collected at 10 times (6-50 minutes) after the start of the infusion. The 0.9% sodium chloride injection had a conditioning effect on the polyvinyl chloride administration sets, indicating an electrostatic sorption mechanism for insulin. Sorption to the untreated polyvinyl chloride sets and the ethylene vinyl acetate bags was substantial and followed a Langmuir adsorption isotherm. Insulin sorption to the untreated administration sets was greatest from the first 100 mL of effluent and did not differ by flow rate or type of set investigated. Storing the sodium chloride injection in the tubing for one hour or flushing the tubing with 100 mL of sodium chloride injection or 100 mL of the insulin admixture decreased sorption by half. Storing the insulin admixture in the tubing for 30 minutes caused sorption to be reduced by a factor of three. When either of the solutions was stored in the set and then the set was flushed with the solution, sorption was even further suppressed.(ABSTRACT TRUNCATED AT 250 WORDS)
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Jensen AK, Persson I, Orskov G. [Nurses stood alone during Hjørring conflict]. Sygeplejersken 1984; 84:8-9, 16. [PMID: 6570770] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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Effersoe P, Jensen AK. [Foreign infectious diseases]. Ugeskr Laeger 1965; 127:979-83. [PMID: 5825341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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