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Biomedical subjects

B Steinke

Publications and source records attributed to B Steinke.

At least 19 recordsLinked to original sources
PubMed2006

Aplastic crisis as a complication of congenital dyserythropoietic anemia type II.

A transient aplastic crisis (TAC) is a well-known complication in all types of chronic hemolytic anemia but only 2 cases of such an event were described in congenital dyserythropoietic anemias (CDAs). Here, we report a third case, and by retrospective chart review of 78 cases we found evidence of TAC in 8 further patients with CDA II, with serological evidence of previous human parvovirus B19 (B19V) infection in all but one. Although B19V infection results in TAC in only a minority of patients with CDA, physicians responsible for these patients should be aware of such a potentially life-threatening complication. Testing for B19V-specific IgG is recommended in patients with CDA to estimate the risk of a possible future aplastic crisis.

Adolescent↗
PubMed2004

[Health, social, societal and organizational political effects of the implementation of the ICF on integrated rehabilitation--a vision of the conversion and its consequences].

Fundamental joint principles on expert opinions according to the social law code no. IX (SGB IX) and their application to a virtual individual case history were published recently in this journal. They are based on the ICF (International Classification of Functioning, Disability and Health, WHO 2001). A visionary review of the chances and prospects for the further development of the rehabilitative system is outlined and the necessary steps for their implementation are demonstrated.

Diagnosis-Related Groups↗
PubMed2004

[Aspects of expertise which are jointly valid for German sociomedicine and statutory health care].

A project group of the Medical Advisory Board of the German Federal Rehabilitation Council (BAR) developed fundamental joint principles on experts' opinions according to the social law code no. IX (SGB IX). The principles aim at medical experts working in different social organisations and statutory health care insurance. It was intended to create a "sociomedical language" which should be used as jointly as possible by experts in rehabilitation and social medicine and which is based on the ICF (International Classification of Functioning, Disability and Health, WHO 2001). Its stringent application will increase the utility of medical expertise across different institutions. The authors recommend to evaluate whether this model could provide a tool in the communication and cooperation between different sectors of the health system. Part I describes the theoretical model, Part II its application to a virtual individual case history.

Delivery of Health Care↗
PubMed2003

[Aspects of expertising which are jointly valid for German sociomedicine and statutory health care].

A project group of the Medical Advisory Board of the German Federal Rehabilitation Council (BAR) developed fundamental joint principles on experts' opinions according to the social law code no. IX (SGB IX). The principles aim at medical experts working in different social organisations and statutory health care insurances. It was intended to create a "sociomedical language" which should be used as jointly as possible by experts in rehabilitation and social medicine and which is based on the ICF (International Classification of Functioning, Disability and Health, WHO 2001). Its stringent application will increase the utility of medical expertise across different institutions. The authors recommend to evaluate whether this model could provide a tool in the communication and cooperation between different sectors of the health system. Part I describes the theoretical model, Part II its application to a virtual individual case history.

Delivery of Health Care↗
PubMed2002

[SGB IX - Magna Charta of a Functional Participation Philosophy].

Further development of needs-based, efficient health care structures in particular for people with chronic illness, and in conjunction with them, is the paramount objective of SGB IX, book 9 of the German social code. To achieve this it is necessary to define treatment sequences across sectoral boundaries in health care, and to establish cooperation between community-practice physicians, hospitals, rehab and long-term care facilities, cost carriers, and people with disabilities. In this context, the article discusses the current rank of rehabilitation and participation, points out the underlying conflicting issues and interests, and posits the preventive-integrative rehabilitation paradigm at the very centre of health protection networking.

Chronic Disease↗
PubMed1999

Human growth hormone transgene expression increases the biomechanical structural properties of mouse vertebrae.

STUDY DESIGN: Caudal vertebrae were obtained from male and female mice from two transgenic lines expressing an erythroid-specific human growth hormone transgene construct, and gender-matched, age-matched, non-transgenic control mice. OBJECTIVE: To characterize the effect of human growth hormone transgene expression on the biomechanical structural properties of caudal vertebrae in compression. SUMMARY OF BACKGROUND DATA: An increase in trabecular and cortical bone deposition caused by erythroid-specific human growth hormone transgene expression was demonstrated previously. METHODS: Compression tests were performed on individual caudal vertebrae (Ca4, Ca5, Ca6) obtained from male and female mice from two transgenic lines (TG420 and TG450) and nontransgenic control mice. Two age groups were evaluated: 12 weeks old and 6 months old. The data were used to obtain axial stiffness, maximum load, and energy to failure. RESULTS: Vertebrae from male TG420 transgenic mice produced significantly larger values for maximum load, energy to failure, and axial stiffness at both 12 weeks and 6 months in comparison with their age-matched non-transgenic male controls. Vertebrae from female TG420 transgenic mice produced similar responses at 6 months. Vertebrae from male TG450 transgenic mice showed significant increases in maximum load and energy to failure at 6 months. In general, the biomechanical properties of vertebrae were significantly larger in the 6-month age group than in the 12-week age group, and this increase was significantly greater in the transgenic mice than in the gender-matched control mice during the same time span. This process was also influenced by transgenic genotype and gender. CONCLUSIONS: Erythroid-specific production of human growth hormone in transgenic mice resulted in significant increases in biomechanical properties of their caudal vertebrae in compression. The changes in the biomechanical properties were influenced by genotype, age, and gender.

Aging↗
PubMed1996

[Quo vadis, rehabilitation? Comments on the cost savings package by the federal government].

In the framework of the austerity measures contained in the programme for enhancing growth and employment, drastic cutbacks have been launched for the medical rehabilitation benefits available under the health insurance and pension insurance schemes. The legal entitlement to vocational rehabilitation benefits under the employment promotion act has been transformed into a discretionary entitlement, and will in future be contingent on available budgetary resources of the federal employment service Bundesanstalt für Arbeit. A characteristic of all of these measures is their purely budgetary focus. Given a background of adverse trends in economic activity and employment, the field of rehabilitation could certainly not turn a deaf ear to the demand to economize. Presented is an overview of the impact the austerity legislation will have in the field of rehabilitation, in particular taking a closer look at the issue of whether the measures devised are conceptually grounded, or whether mere budgetary goals are being targetted. The potential for economizing by way of innovative approaches and greater flexibility is pointed out as a viable alternative.

Cost Savings↗
PubMed1995

[Primary plasmacytoma of the lymph node (plasmocytic lymphoma). The differential diagnosis of nodal plasma-cell proliferates].

HISTORY AND CLINICAL FINDINGS: A 60-year-old man was found on routine examination to have an enlarged, firm, cervical lymph node. He looked older than his age and his general condition was poor. He had no fever, nocturnal sweating or weight loss. Further examination revealed no hepatosplenomegaly on palpation, but numerous enlarged cervical lymph nodes were palpable. INVESTIGATIONS: Histological investigation of a cervical lymph node revealed a marked increase in slightly pleomorphic plasma cells with monotypic expression of IgM-kappa. Multiple myeloma was excluded on the basis of histological and cytological findings in the bone marrow. Serology revealed a mild antibody deficiency syndrome (gamma-globulin 7.8%) with signs of acute inflammation and an increase in alpha 2-globulin. There was no evidence of a monoclonal gammopathy on electrophoresis. A diagnosis of primary nodal plasmacytoma was made. COURSE: As the patient was asymptomatic at diagnosis he was not given chemotherapy. There was no evidence of tumour progression at follow-up examination two months later. His progress will be monitored closely. CONCLUSION: This patient's history is consistent with the prognosis generally associated with primary nodal plasmacytoma that is much better than that of multiple myeloma.

Diagnosis, Differential↗
PubMed1995

High-dose cytosine arabinoside and daunorubicin postremission therapy in adults with de novo acute myeloid leukemia. Long-term follow-up of a prospective multicenter trial.

A total of 149 consecutive de novo AML patients aged 50 years or less (median age = 37 years) were enrolled in this prospective multicenter trial initiated in May 1985. All patients received the same induction and early consolidation therapy with daunorubicin (DNR), cytosine arabinoside (Ara-C), and etoposide (DAV). High-dose Ara-C/DNR therapy included Ara-C at 3 g/m2, in 12 doses (HD-Ara-C/DNR I) and eight doses (HD-Ara-C/DNR II), followed by DNR 30 mg/m2 for 3 days. A complete remission (CR) was achieved in 104 (70%) patients; 61 complete responders received at least one cycle with HD-Ara-C/DNR. If those patients who were transplanted in first CR (n = 26), were not considered, the median relapse-free-survival (MRFS) of the remaining 78 patients was 15 months, with a probability of relapse-free survival (RFS) at 116 months of 30% (95% CI, 20-40%) after a median follow-up of 95 months. The MRFS of the HD-Ara-C/DNR consolidated patients was 25 months, with a probability of RFS at 116 months of 37% (95% CI, 24-50%). If all patients who were transplanted (n = 44) were not considered, the median survival time (MST) was 18 months with a probability of being alive at 118 months of 24% (95% CI, 16-33%). MST of the HD-Ara-C/DNR consolidated patients was 58 months with a survival probability of 46% (95% CI, 31-60%) at 118 months. Prognostic factor analysis did not reveal any significant influence of age, sex, FAB subtype, white blood cell count, hemoglobin level, thrombocyte count, LDH, or response to the first induction course on RFS of the HD-Ara-C/DNR consolidated patients. In summary, HD-Ara-C/DNR consolidation can improve the long-term outcome of a subgroup of de novo AML patients. Further improvement of the outcome seems to depend on the identification of patients with an inferior outcome under that strategy who might benefit from alternative treatment strategies.

Adolescent↗
PubMed1995

[Maastricht European social policy with special reference to questions concerning rehabilitation and disability topics].

A protocol annexed to the Maastricht Treaty of 7 February 1992, the agreement on social policy is instrumental in upgrading European social policy and in making it an integral part of the policy of the European Union. It is on the one hand oriented toward appropriate provisions to protect workers in the various EU member countries against disadvantage arising from developments in the economic sector, but on the other also seeks to counter the high level of unemployment currently at hand by fostering concrete action. European social policy, hence, is emphasizing employment policy initiatives including action aimed at occupational and social integration of disabled people, such as the HELIOS II action programme or the "Employment HORIZON" Community initiative. The Commission's notions of European social policy development in the forthcoming 1995-1999 period have been presented in the White Paper "European social policy, a way forward for the Union". The proposals contained in this White Paper are to be embodied in 1995 in a work programme of the European Commission.

Persons with Disabilities↗
PubMed1994

Assessment of the value of immunohistochemistry in the subtyping of acute leukemia on routinely processed bone marrow biopsy specimens with particular reference to macrophage-associated antibodies.

The value of immunohistochemical staining in the subtyping of acute leukemia was investigated on 36 routinely processed (formalin-fixed and paraffin-embedded) trephine biopsy specimens from the iliac crest containing diffuse infiltrates of acute myelogenous leukemia (AML; n = 23) and acute lymphoblastic leukemia (ALL; n = 13). These were stained with a broad panel of antibodies (n = 23) against various leukocyte antigens, among them 11 macrophage-associated antibodies (MAAs): Ki-M1p, MAC387, HAM56, LN5, KP1 (CD68), PG-M1 (CD68), Ki-M4p, DAKO-DRC (CD35), and antibodies against lysozyme, alpha 1-antichymotrypsin, and S100 protein. The French-American-British (FAB) classification subtypes of the AML cases, as determined by enzyme-cytochemical and/or immunocytological investigation of bone marrow smears, were as follows: M1 = 6, M2 = 5, M4 = 7, M5 = 3, and AML (not classified) = 2. The 13 cases of ALL were classified as follows: c-ALL (pre-B-ALL) = 7, B-ALL = 3, T-ALL = 2, and ALL (not classified) = 1. All the MAAs except LN5, Ki-M4p, and DAKO-DRC stained blast cells in AML. However, the number of stained blast cells varied considerably within and between the individual subtypes (M4/5 > M2/1). Using Fisher's exact test a significant difference in frequency of blast cell staining between AML and ALL was found for four MAAs (anti-lysozyme, MAC387, Ki-M1p, and KP1) and two of the three myeloid cell markers applied (Ki-My2p and anti-neutrophil elastase). Of these six antibodies, the combination of anti-lysozyme and KP1 can be recommended for use in routine diagnostics for the differentiation of AML from ALL on the basis of immunohistochemical staining because both of these antibodies were found to stain a relatively large percentage of cases of AML but none of ALL. However, none of the MAAs were found to discriminate reliably between the FAB M4/5 and M1/2 subtypes of AML.

Antigens, CD↗
PubMed1994

Weekly therapy with folinic acid (FA) and high-dose 5-fluorouracil (5-FU) 24-hour infusion in pretreated patients with metastatic colorectal carcinoma. A multicenter study by the Association of Medical Oncology of the German Cancer Society (AIO).

BACKGROUND: No effective salvage therapy is known for patients with metastatic colorectal carcinoma progressive after chemotherapy with 5-fluorouracil (5-FU)/folinic acid (FA) or 5-FU/alpha interferon (IFN) combinations. The aim of the study was to test whether weekly FA/high-dose 5-FU is an effective therapy in pretreated patients with progressive metastatic colorectal carcinoma. PATIENTS AND METHODS: Between January and December 1992, 57 patients with metastatic colorectal carcinoma were treated with weekly infusions of high-dose 5-fluorouracil (5-FU) (2600 mg/m2 as 24-hour infusion) and folinic acid (FA) (500 mg/m2 as 1-hour infusion prior to 5-FU). All patients were pretreated with chemotherapy, most of them with regimens containing 5-FU i.v. bolus/FA or 5-FU/alfa interferon (IFN), and all had documented progressive disease at the time of entering the study. In patients with partial remission (PR) or stable disease (SD) with improvement of their clinical condition, therapy was continued until progressive disease (PD) was documented. In all other patients therapy was stopped after one course (6 infusions). RESULTS: 5/57 patients (9%) achieved PR, 32/57 (56%) SD, in 19/57 (33%) disease was progressive and one toxic death occurred. 26/32 patients (81%) with SD or PR after the first chemotherapy again obtained SD or PR on high-dose 5-FU/FA but only 8/18 (44%) of those with PD after first chemotherapy did so. The median duration of SD/PR was 3 months and the median survival for all patients 8 months (range 3-17+). Apart from one toxic death, toxicity consisting for the most part of mucositis (n = 24), nausea (n = 23), diarrhoea (n = 18) and hand-foot syndrome (n = 12) was moderate. CONCLUSION: Pretreated patients with metastatic colorectal carcinoma, notably those with a primary PR or SD, can probably benefit from weekly high-dose 5-FU/FA.

Adult↗
PubMed1993

[Biological standardization of Ginkgo extracts].

The determination of the inhibition of PAF (platelet-activating factor)-induced platelet aggregation has been proposed as a biological standardization method for commercially available Ginkgo biloba extracts by measuring the characteristic pharmacological effect of ginkgolides in vitro. The determination is specific for ginkgolides A, B, C, and J and is not influenced by other constituents present in Ginkgo biloba extracts. IC50 values of ginkgolide B can be used to standardize various Ginkgo extracts produced by special extraction methods with respect to equi-effective ginkgolide B contents. In order to compare values obtained by a chemical-analytical procedure with those obtained by the biological assay, the equi-effective total ginkgolide content of each Ginkgo extract had to be calculated. Accordingly, the concentrations of the individual ginkgolides in the various Ginkgo extracts were determined chromatographically by assaying ginkgolides as trime-thylsilyl derivatives. Their individual contributions towards the measured in vitro effects were derived from their respective IC50 values. The calculated equi-effective total ginkgolide contents of the Ginkgo extracts were in good agreement with those obtained by gas chromatography. The results demonstrate that, in addition to a chemical standardization, the biological standardization of Ginkgo extract preparations is also feasible.

Lactones↗
PubMed1992

[Adjuvant therapeutic possibilities in carcinoma of colon and rectum].

Recently published results of large randomized trials have changed the recommendations for adjuvant treatment in patients with colorectal cancer. Patients with Dukes C cancer of the large bowel should be treated with a combination of Levamisole and 5-FU. For patients with rectal carcinoma Dukes B and C, a combined chemo-/radiotherapy is recommended.

Antineoplastic Combined Chemotherapy Protocols↗