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1.
Prax Kinderpsychol Kinderpsychiatr ; 48(9): 647-63, 1999 Nov.
Article in German | MEDLINE | ID: mdl-10616291

ABSTRACT

This article describes experiences of parents of sexual abused children and their evaluations of institutional interventions on sexual child abuse. Results are presented of a study investigating 'individual and institutional reactions on sexual child abuse'. The number of contacted institutions, personnel experiences with these institutions and resulting requirements are described. The results are based on a sample of 47 (82.5%) girls and 10 (17.5%) boys (range 6-18 years) and interviews with their 'non-abusing' parents. 28 (49.1%) of these children were abused by a member of the family, 29 (50.9%) children by non-familiar persons. It could be shown that 70.2% of the children had contacted four or more different institutions soon after the sexual abuse had been revealed. In cases of sexual abuse by a family member the first contacted institution was the Youth-and-Health-Care-System whereas in cases of sexual abuse by non-familiar persons mostly the police was contacted. Nevertheless in most cases both judicial and supporting approach were chosen. Additionally to concrete advices and professional competences the interviewed parents reported that emotional warmth was a very helpful aspect of the professional intervention. Generally the perspective of the parents seems to give some interesting informations about 'consumer satisfaction'.


Subject(s)
Child Abuse, Sexual/psychology , Child Abuse, Sexual/rehabilitation , Child Advocacy/psychology , Community Health Services/organization & administration , Parents/psychology , Adolescent , Child , Child Abuse, Sexual/legislation & jurisprudence , Child Abuse, Sexual/statistics & numerical data , Child Advocacy/legislation & jurisprudence , Child Advocacy/statistics & numerical data , Family Characteristics , Female , Germany , Humans , Interview, Psychological , Male , Quality Assurance, Health Care , Sampling Studies
2.
Prax Kinderpsychol Kinderpsychiatr ; 45(8): 300-7, 1996 Oct.
Article in German | MEDLINE | ID: mdl-9011855

ABSTRACT

A broad spectrum of very different institutions is confronted with the problem of sexual child abuse. So far, only a few systematic descriptions of institutional interventions and their impact on sexually abused children exist. In this article, first results are presented of a study investigating "individual and institutional reactions on sexual child abuse'. In dealing with this problem legal provisions are of special importance. The results presented are based on data obtained from questionnaires and qualitative interviews with experts (median of vocation experience: 8 years) in two german cities (berlin/cologne). Questionnaires were filled in by 195 experts from the entire institutional spectrum (counselors, clinical centres, youth welfare departments, public prosecutors, courts of justice, police), of whom 40 additionally took part in a detailed interview. This article focuses on the question, how different institutions handle legal provisions. The use of criminal law exemplarily shows the different impact of legal provisions on the interventions of counselors. The close connection between the assessment of legal interventions and counseling concepts could be shown at the example of the allegedly homogeneous group of specific counselors.


Subject(s)
Child Abuse, Sexual/legislation & jurisprudence , Child Welfare/legislation & jurisprudence , Organizational Policy , Patient Care Team/legislation & jurisprudence , Adolescent , Child , Child, Preschool , Expert Testimony/legislation & jurisprudence , Female , Germany , Humans , Male , Mandatory Reporting
3.
J Biotechnol ; 47(2-3): 239-44, 1996 Jun 27.
Article in English | MEDLINE | ID: mdl-11536761

ABSTRACT

Free-living cells show distinct gravisensitivities and often use the gravity ('g') vector for their spatial orientation. The rhythmic contractions of the ameboid Myxomycete (acellular slime mold) Physarum polycephalum are a sensitive parameter which can be modified by external stimuli. Space experiments and ground-based 0 x g simulation studies established that the contraction period transiently decreases after a transition from 1 x g to 0 x g with a back-regulating process starting after 30 min. For determination of the threshold of acceleration sensitivity, a slow-rotating centrifuge microscope (NIZEMI--Niedergeschwindigkeits-Zentrifugenmikroskop) was used, providing in space accelerations from 0 x g to 1.5 x g. A stepwise acceleration increase revealed that the lowest acceleration level capable of inducing a response was 0.1 x g. The response to the acceleration increase was an increase in contraction period, in contrast to a stimulus deprivation, which led to a period decrease. The time schedule of the acceleration responses and back-regulating process seems to be fixed, suggesting that every acceleration being above the threshold can induce a complete response-regulation process. The low acceleration-sensitivity threshold favors rather large and dense cell organelles as candidates for the gravity receptor in Physarum.


Subject(s)
Acceleration , Gravity Sensing , Physarum/physiology , Space Flight , Weightlessness , Adaptation, Physiological , Animals , Centrifugation/instrumentation , Physarum/cytology , Software
4.
Acta Astronaut ; 36(8-12): 479-86, 1995.
Article in English | MEDLINE | ID: mdl-11540980

ABSTRACT

Cellular signal processing in multi-, as well as in unicellular organisms, has to rely on fundamentally similar mechanisms. Free-living single cells often use the gravity vector for their spatial orientation (gravitaxis) and show distinct gravisensitivities. In this investigation the gravisensitive giant ameboid cell Physarum polycephalum (Myxomycetes, acellular slime molds) is used. Its gravitaxis and the modulation of its intrinsic rhythmic contraction activity by gravity was demonstrated in 180 degrees-turn experiments and in simulated, as well as in actual, near-weightlessness studies (fast-rotating clinostat; Spacelab D1, IML-1). The stimulus perception was addressed in an IML-2 experiment, which provided information on the gravireceptor itself by the determination of the cell's acceleration-sensitivity threshold. Ground-based experiments designed to elucidate the subsequent steps in signal transduction leading to a motor response, suggest that an acceleration stimulus induces changes in the level of second messenger, adenosine 3',5'-cyclic monophosphate (cAMP), indicating also that the acceleration-stimulus signal transduction chain of Physarum uses an ubiquitous second messenger pathway.


Subject(s)
Cyclic AMP/physiology , Gravity Sensing/physiology , Physarum , Second Messenger Systems , Signal Transduction/physiology , Space Flight , Weightlessness Simulation , Acceleration , Animals , Centrifugation/instrumentation , Gravitation , Microscopy/instrumentation , Rotation , Weightlessness
5.
J Gravit Physiol ; 1(1): P78-81, 1994 May.
Article in English | MEDLINE | ID: mdl-11538773

ABSTRACT

NASA: Every cell is probably able to respond to gravity (g) via an unknown gravireceptor mechanism (supposed general gravisensitivity of cells). To investigate this mechanism a free-living ameboid cell, which uses gravity for its spatial orientation (geotaxis), was selected as a model system: the acellular slime mold Physarum polycephalum (Myxomycetes). In this paper results of 0 g-simulation experiments will be compared to results obtained in the Spacelab IML-1 Physarum experiment to stress the reliability of experiments performed on the fast-rotating clinostat.^ieng


Subject(s)
Gravitation , Gravity Sensing/physiology , Physarum polycephalum/cytology , Rotation , Space Flight , Weightlessness , Acceleration , Animals , Cytoplasmic Streaming/physiology , Light , Mitochondria/physiology , Photic Stimulation , Physarum polycephalum/physiology
6.
Adv Space Res ; 14(8): 21-34, 1994.
Article in English | MEDLINE | ID: mdl-11537920

ABSTRACT

The acellular slime mold Physarum polycephalum is used as a model system to investigate the graviresponse of single cells which possess no receptors specialized for the perception of gravity. To obtain insights into the gravity-signal transduction mechanism the light response of the cell is used: Macroplasmodia of the slime mold show clear geo- and phototaxes. Gravity increases and white light decreases transiently the contraction frequency of plasmodial strands whereby both responses follow the same time pattern. Since mitochondria play a major role in changing the contraction rhythm in response to light and gravity stimuli, the simultaneous and subsequent inductions of the opposing light and gravity responses and their mutual influences on one another were investigated. The experiments were performed in weightlessness (0 g)--simulated on the fast-rotating clinostat as well as in actual weightlessness during the IML-1 Space Shuttle mission. The results indicate that mitochondria (chondriome) are part of the acceleration-stimulus reaction chain in Physarum. Two models for a direct gravireceptor mechanism are discussed.


Subject(s)
Gravitation , Gravity Sensing/physiology , Physarum polycephalum/physiology , Space Flight , Weightlessness , Animals , Cell Movement , Cytoplasmic Streaming , Light , Mitochondria/physiology , Organelles/physiology , Rotation , Signal Transduction/physiology , Weightlessness Simulation
7.
Hum Pathol ; 21(1): 59-67, 1990 Jan.
Article in English | MEDLINE | ID: mdl-2403975

ABSTRACT

This analysis of the morphology of suspected amiodarone (AD) liver disease is based on a study of liver specimens from 17 individuals. Changes similar to alcoholic liver injury were commonly seen. Steatosis, both macrovesicular and microvesicular, was the most frequent histopathologic feature. Ballooning of hepatocytes, Mallory bodies, and fibrosis were also common. Other changes included nuclear unrest, acidophilic bodies, foam cells, glycogenated nuclei, and portal inflammation. Characteristic lamellar lysosomal inclusion bodies representing phospholipidosis were found in two of 14 specimens studied ultrastructurally. These changes of pseudoalcoholic hepatitis and/or phospholipidosis were present in liver specimens from asymptomatic, anicteric patients with mild elevations in serum aminotransferase or alkaline phosphatase values with or without hepatomegaly, as well as in patients with clinically overt symptoms of hepatotoxicity. Phospholipidosis appears to be a generalized systemic effect of cationic amphophilic compounds, such as AD. The cytotoxic pseudoalcoholic changes appear to be an independent phenomenon in susceptible patients, whom we speculate may have been unable or less able to metabolize AD through normal pathways. The true incidence of hepatic injury from AD remains to be determined from prospective evaluations of pretreatment and follow-up liver biopsies.


Subject(s)
Amiodarone/adverse effects , Chemical and Drug Induced Liver Injury , Liver/pathology , Adolescent , Adult , Aged , Aged, 80 and over , Diagnosis, Differential , Female , Humans , Liver/ultrastructure , Liver Diseases/diagnosis , Liver Diseases/pathology , Liver Diseases, Alcoholic/diagnosis , Liver Diseases, Alcoholic/pathology , Male , Middle Aged
8.
Ann Intern Med ; 111(8): 641-9, 1989 Oct 15.
Article in English | MEDLINE | ID: mdl-2802419

ABSTRACT

We assess toxicity related to 6-mercaptopurine in the treatment of inflammatory bowel disease by reporting our experience with 396 patients (120 patients with ulcerative colitis, 276 with Crohn disease) observed over 18 years. Follow-up data for a mean period of 60.3 months were obtained for 90% of the patients. Toxicity directly induced by 6-mercaptopurine included pancreatitis in 13 patients (3.3%), bone marrow depression in 8 (2%), allergic reactions in 8 (2%), and drug hepatitis in 1 (0.3%). These complications were reversible in all cases with no mortality. Most cases of marrow depression occurred earlier in our experience, when the initial drug doses used were higher. Infectious complications were seen in 29 patients (7.4%), of which 7 (1.8%) were severe, including one instance of herpes zoster encephalitis. All infections were reversible with no deaths. Twelve neoplasms (3.1%) were observed, but only 1 (0.3%), a diffuse histiocytic lymphoma of the brain, had a probable association with the use of 6-mercaptopurine. Our data, showing a low incidence of toxicity in 396 patients, coupled with the previously demonstrated efficacy of 6-mercaptopurine in the treatment of inflammatory bowel disease, indicate that the drug is a reasonable alternative in the management of patients with intractable inflammatory bowel disease.


Subject(s)
Colitis, Ulcerative/drug therapy , Crohn Disease/drug therapy , Mercaptopurine/adverse effects , Adolescent , Adult , Aged , Bone Marrow Diseases/chemically induced , Chemical and Drug Induced Liver Injury/etiology , Child , Double-Blind Method , Drug Hypersensitivity/etiology , Female , Follow-Up Studies , Humans , Infections/epidemiology , Male , Mercaptopurine/therapeutic use , Middle Aged , Neoplasms/epidemiology , Pancreatitis/chemically induced , Pregnancy , Time Factors
9.
Gastroenterology ; 89(1): 13-8, 1985 Jul.
Article in English | MEDLINE | ID: mdl-3874110

ABSTRACT

Random fecal alpha 1-antitrypsin levels were determined in 34 patients, 24 with Crohn's disease, and 10 "controls" having diarrheal illnesses not associated with intestinal protein loss, in an effort to evaluate its usefulness as a measure of Crohn's disease intestinal activity. In the control group, all alpha 1-antitrypsin levels were less than 2 mg/g dry wt of stool. The mean fecal level among those with Crohn's disease was 52.9 mg/g (range less than 2 to greater than or equal to 200). There was a strong correlation between disease activity, as measured by a clinical score, and the alpha 1-antitrypsin levels (Spearman r = 0.65, p = 0.001). This correlation was similarly strong among those with colitis or ileitis. A fecal value greater than 20 mg/g may provide a rough guideline to separate patients with clinically active disease from those with inactive Crohn's disease, despite a considerable range of fecal levels among patients with a particular clinical score. Fecal alpha 1-antitrypsin levels correlated with several other laboratory measures that have been proposed as indicators of Crohn's disease activity. The serum orosomucoid, C-reactive protein, and albumin correlated with the clinical activity score among some of our patient groups. Both clinical scores and laboratory parameters, however, may have limited usefulness in a variety of circumstances. Random fecal alpha 1-antitrypsin determinations seem to provide a reliable, although not directly quantitative, measure of the intestinal activity among patients with Crohn's disease, especially when other methods may be inconclusive.


Subject(s)
Crohn Disease/diagnosis , Feces/enzymology , alpha 1-Antitrypsin/analysis , Adolescent , Adult , Aged , Blood Sedimentation , C-Reactive Protein/analysis , Child , Clinical Enzyme Tests , Female , Hematocrit , Humans , Male , Middle Aged , Orosomucoid/analysis , Serum Albumin/analysis
10.
Gut ; 26(3): 291-4, 1985 Mar.
Article in English | MEDLINE | ID: mdl-3972276

ABSTRACT

Five patients with primary biliary cirrhosis and prolonged cholestasis underwent intensive plasmapheresis. The indications for plasmapheresis included intractable pruritus or hypercholesterolemia and xanthomatous neuropathy. Patients noted a rapid improvement of pruritus and fatigue which was sustained as long as plasmapheresis was continued. Cholesterol levels were lowered an average of 10.3 mmol/l and xanthomata were reduced in three of four patients. Two patients with painful neuropathy caused by xanthomata experienced relief of this symptom. The liver and spleen size were not affected by plasmapheresis, and activities of aminotransferases, alkaline phosphatase and titres of mitochondrial antibody remained unchanged. We conclude that plasmapheresis has a role in the therapeutic management of patients with advanced primary biliary cirrhosis who are disabled by the complications of pruritus, xanthomatous neuropathy, or hypercholesterolemia with xanthoma formation.


Subject(s)
Liver Cirrhosis, Biliary/therapy , Plasmapheresis , Adult , Humans , Hypercholesterolemia/etiology , Hypercholesterolemia/therapy , Liver Cirrhosis, Biliary/blood , Liver Cirrhosis, Biliary/complications , Pruritus/etiology , Pruritus/therapy , Xanthomatosis/etiology , Xanthomatosis/therapy
11.
J Clin Apher ; 2(3): 219-23, 1985.
Article in English | MEDLINE | ID: mdl-4030709

ABSTRACT

Primary biliary cirrhosis (PBC) is a chronic nonsuppurative, destructive cholangitis, whose etiology is unknown. Morbidity arises early from pruritus and later from hypercholesterolemia with xanthoma formation. Therapy is supportive and directed at the complications of cholestasis. Plasmapheresis has been reported to benefit patients with hyperlipidemia and PBC; thus a pilot study of plasmapheresis utilizing the Haemonetics Model 30 with replacement by albumin and saline was conducted. Five patients (four female and one male) with a mean age of 43 (range 29-58) and a mean duration of illness of 9.5 years (range 6-21) with marked jaundice, xanthomas, xanthelasma, hepatomegaly, fatigability, anorexia, and pruritus, as well as mild nausea were studied. Peripheral neuropathy was present in two patients. Two patients had splenomegaly. Two patients had an associated Sjogren syndrome. All patients had high serum bilirubin, alkaline phosphatase, and cholesterol levels and mild elevations in aspartate amino transferase and alanine amino transferase activities. Immune complexes measured in four patients were present. Antimitochondrial antibody titers were significant in all patients. Patients underwent a mean of 63 plasmapheresis procedures over a mean of 112 weeks removing a mean of 94.7 liters of plasma. No serious toxicity was seen. All patients showed a reduction in pruritus, xanthomas, xanthelasmas, and serum cholesterol values. The two patients who had evidence of Sjogren syndrome noted subjective improvement. All patients who had fatigue, anorexia and nausea also noted moderate improvement. There was no change in hepatomegaly or splenomegaly in patients demonstrating such organomegaly. Liver function did not change significantly. Overall, four patients had improvement in their condition and one patient achieved stability.(ABSTRACT TRUNCATED AT 250 WORDS)


Subject(s)
Liver Cirrhosis, Biliary/therapy , Plasmapheresis , Adult , Female , Hepatomegaly/therapy , Humans , Hypercholesterolemia/therapy , Male , Middle Aged , Plasmapheresis/adverse effects , Pruritus/therapy , Raynaud Disease/therapy , Sjogren's Syndrome/therapy , Splenomegaly/therapy , Xanthomatosis/therapy
12.
Am J Med ; 76(6): 1075-8, 1984 Jun.
Article in English | MEDLINE | ID: mdl-6145354

ABSTRACT

Primary biliary cirrhosis is characterized by abnormalities in both cellular and humoral immunity. It is associated with presumably autoimmune diseases such as Sjögren's syndrome, rheumatoid arthritis, and scleroderma. Sjögren's syndrome and scleroderma have been noted to have an increased frequency of malignancy. Of 208 patients with primary biliary cirrhosis, followed for one month to 15.9 years, extrahepatic malignancies developed in 11, six of whom were women with breast cancer, and one with hepatocellular carcinoma. The incidence of breast cancer was 4.4 times (p less than 0.01) the incidence expected from the rate prevailing in the same age range in a comparable normal population. The incidence of cancer in sites other than the breast and of primary hepatocellular tumor was not significantly increased.


Subject(s)
Adenocarcinoma/epidemiology , Breast Neoplasms/epidemiology , Liver Cirrhosis, Biliary/complications , Adenocarcinoma, Papillary/epidemiology , Aged , Alkaline Phosphatase/blood , Carcinoma, Hepatocellular/epidemiology , Female , Humans , Liver Cirrhosis, Biliary/enzymology , Liver Neoplasms/epidemiology , Male , Middle Aged , Thyroid Neoplasms/epidemiology , gamma-Glutamyltransferase/blood
13.
J Clin Gastroenterol ; 6(3): 225-9, 1984 Jun.
Article in English | MEDLINE | ID: mdl-6725913

ABSTRACT

A 40-year-old bisexual man with the acquired immunodeficiency syndrome developed abdominal pain and bloody diarrhea. At sigmoidoscopy, the mucosa of the rectum and sigmoid colon was edematous, erythematous, and friable, with multiple linear and oval erosions. Histologic examination of rectal biopsies demonstrated innumerable acid-fast bacilli free and within macrophages of the lamina propria. Mycobacterium avium-intracellulare was cultured from the rectal biopsy specimens. Pulmonary tissue and bone marrow cultures also demonstrated this organism. Therapy with several antimycobacterial agents resulted in improvement of symptoms. Among immunocompromised patients the spectrum of enteric pathogens causing colitis should be expanded to include Mycobacterium avium-intracellulare, a potentially treatable organism.


Subject(s)
Acquired Immunodeficiency Syndrome/complications , Colitis/etiology , Mycobacterium Infections, Nontuberculous , Mycobacterium Infections , Adult , Antitubercular Agents/therapeutic use , Colitis/drug therapy , Colitis/pathology , Humans , Male , Mycobacterium Infections/pathology , Mycobacterium Infections, Nontuberculous/drug therapy , Mycobacterium Infections, Nontuberculous/pathology , Mycobacterium avium
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