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2.
J Appl Microbiol ; 109(5): 1498-508, 2010 Nov.
Article in English | MEDLINE | ID: mdl-20602653

ABSTRACT

AIMS: To elucidate the roles of the ß-1,3-endoglucanase EngA in autolysis of the filamentous fungus Aspergillus nidulans and to identify the common regulatory elements of autolytic hydrolases. METHODS AND RESULTS: A ß-1,3-endoglucanase was purified from carbon-starving cultures of A. nidulans. This enzyme is found to be encoded by the engA gene (locus ID: AN0472.3). Functional and gene-expression studies demonstrated that EngA is involved in the autolytic cell wall degradation resulting from carbon starvation of the fungus. Moreover, regulation of engA is found to be dependent on the FluG/BrlA asexual sporulation signalling pathway in submerged culture. The deletion of either engA or chiB (encoding an endochitinase) caused highly reduced production of hydrolases in general. CONCLUSIONS: The ß-1,3-endoglucanase EngA plays a pivotal role in fungal autolysis, and activities of both EngA and ChiB are necessary to orchestrate the expression of autolytic hydrolases. The production of cell wall-degrading enzymes was coordinately controlled in a highly sophisticated and complex manner. SIGNIFICANCE AND IMPACT OF THE STUDY: No information was available on the autolytic glucanase(s) of the euascomycete A. nidulans. This study demonstrates that EngA is a key element in fungal autolysis, and normal activities of both EngA and ChiB are crucial for balanced production of hydrolases.


Subject(s)
Aspergillus nidulans/enzymology , Autolysis/enzymology , Cellulase/metabolism , Aspergillus nidulans/genetics , Autolysis/genetics , Cellulase/genetics , Chitinases/metabolism , Gene Expression Regulation, Fungal , Hydrolases/metabolism , Mutation
3.
Folia Microbiol (Praha) ; 54(2): 105-9, 2009.
Article in English | MEDLINE | ID: mdl-19418246

ABSTRACT

Under carbon starvation, Aspergillus nidulans released a metallo-proteinase with activities comparable to those of PrtA, the major extracellular serine proteinase of the fungus. The relative molar mass of the enzyme was 19 kDa as determined with both denaturing and renaturing SDS PAGE, while its isoelectric point and pH and temperature optima were 8.6, 5.5 and 65 degrees C, respectively. The enzyme was stable at pH 3.5-10.5 and was still active at 95 degrees C in the presence of azocasein substrate. MALDI-TOF MS analysis demonstrated that the proteinase was encoded by the pepJ gene (locus ID AN7962.3), and showed high similarity to deuterolysin from Aspergillus oryzae. The size of the mature enzyme, its EDTA sensitivity and heat stability also supported the view that A. nidulans PepJ is a deuterolysin-type metallo-proteinase.


Subject(s)
Aspergillus nidulans/enzymology , Extracellular Space/enzymology , Fungal Proteins/chemistry , Fungal Proteins/genetics , Metalloendopeptidases/chemistry , Metalloendopeptidases/genetics , Aspergillus nidulans/chemistry , Aspergillus nidulans/genetics , Enzyme Stability , Extracellular Space/chemistry , Extracellular Space/genetics , Fungal Proteins/isolation & purification , Fungal Proteins/metabolism , Isoelectric Point , Metalloendopeptidases/isolation & purification , Metalloendopeptidases/metabolism , Molecular Weight
4.
Acta Biol Hung ; 58(3): 301-10, 2007 Sep.
Article in English | MEDLINE | ID: mdl-17899787

ABSTRACT

The effect of Se(IV) and Cu(II) ions on the antibacterial activity of aflatoxins and ochratoxin A (mycotoxins) was studied in BioArena as a complex bioautographic system. In the presence of 0.23 and 0.46 mg/100 mL Se(IV) the inhibition zones of mycotoxins were decreased, however, lower concentration (0.046 mg/100 mL) increased the antibacterial effect of aflatoxin B1. Cu(II) (1.53 mg/100 mL) enhanced the toxicity of mycotoxins. The results supported the possible role of formaldehyde and its reaction products (e.g. 1O2, O3) in the antibacterial-toxic action of mycotoxins. Cu(II) can probably generate and mobilise the formaldehyde molecules and so it could increase the toxicity with its potential reaction products. It is possible that the enzymatic or spontaneous methylation of Se(IV) takes place through formaldehyde, which may cause partial formaldehyde depletion in the system. The enhanced antibacterial effect at low concentration Se(IV) is overlapping with the often experienced prooxidant effect in cases of natural antioxidants.


Subject(s)
Copper/pharmacology , Mycotoxins/adverse effects , Pseudomonas/drug effects , Selenium/pharmacology , Aflatoxins/adverse effects , Dose-Response Relationship, Drug , Drug Interactions , Formaldehyde/metabolism , Ochratoxins/adverse effects , Oxygen/metabolism , Pseudomonas/metabolism
5.
Acta Radiol ; 47(5): 484-7, 2006 Jun.
Article in English | MEDLINE | ID: mdl-16796311

ABSTRACT

PURPOSE: To compare the efficacy of the short Larsen score (LS 12) based on analysis of 12 areas with the original Larsen score (LS 40), which includes 40 areas for assessing radiographic changes in rheumatoid arthritis. MATERIAL AND METHODS: The radiographs of the hands, wrists, and feet of 122 patients with early rheumatoid arthritis were evaluated by two radiologists using both the LS 40 and LS 12 methods. Cross-sectional analysis of radiographs of 122 patients and longitudinal analysis in 68 patients were performed. RESULTS: There was no significant difference between the mean LS 40 and mean LS 12 in the cross-sectional study. LS 12 correlated strongly (r=0.93, P<0.01) with LS 40 at the baseline, and the rate of progression was similar in both methods (r=0.89, P<0.01) in the longitudinal study. CONCLUSION: The short Larsen score was as efficient as the original method.


Subject(s)
Arthritis, Rheumatoid/diagnostic imaging , Cross-Sectional Studies , Humans , Longitudinal Studies , Middle Aged , Radiography
6.
Acta Biol Hung ; 57(1): 133-6, 2006 Mar.
Article in English | MEDLINE | ID: mdl-16646532

ABSTRACT

On the basis of recent observations it is supposed that seminal fluids may contain--mainly in hydroxymethyl groups--formaldehyde (HCHO) and quaternary ammonium compounds as potential HCHO generators, therefore, preliminary investigations were carried out for the identification of these compounds in pig seminal fluids using OPLC, HPLC and MALDI MS techniques. The fresh pig seminal fluid was frozen in liquid nitrogen, powdered and aliquots (0.25 g) were treated with 0.7 ml ethanolic dimedone solution. The suspension was centrifuged and the clear supernatant was used for analysis by OPLC or after dilution with HPLC or MALDI MS technique. After OPLC separation of formaldemethone the fully N-methylated compounds which are stayed on the start point were separated by OPLC using an other eluent system. It has been established that the HCHO is really a normal component of the pig seminal fluid, as well. It can be isolated and identified in dimedone adduct form. The measurable amount of HCHO depended on the concentration applied of dimedone. According to OPLC and MALDI MS investigations L-carnitine is the main quaternary ammonium compound in pig seminal fluid which can generate a protection of the sperm cells against environmental and other influences. Considerable differences have been found among individuals concerning concentrations of quaternary ammonium compounds in the seminal fluid of pigs.


Subject(s)
Alkaloids/analysis , Carnitine/analysis , Formaldehyde/analysis , Semen/chemistry , Swine , Animals , Chromatography, High Pressure Liquid , Male , Methylation , Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization
7.
Acta Biol Hung ; 56(3-4): 247-59, 2005.
Article in English | MEDLINE | ID: mdl-16196200

ABSTRACT

Membrane lipids play an important role in the function of blood platelets but the mechanisms by which the lipid composition of the platelet membrane is adjusted remain unclear. It has been shown that stress and poly-unsaturated fatty acids modified the lipid composition of blood plasma and platelet lipids, but very little is known about the effect of stress and fatty acids on membrane platelet lipid composition. The purpose of the present investigation was to study the influence of the essential fatty acids: linoleic, linolenic and arachidonic acids on the composition of the platelet membrane lipids of rats assigned to heat and restraint stress. It was shown that injections of polyunsaturated fatty acids decrease or suppress the stress-induced increase in platelet aggregation, suppress the stress-induced modification of the composition of the platelet membrane lipids and modify the fatty acid composition of the platelet membrane phospholipids.


Subject(s)
Fatty Acids, Essential/administration & dosage , Membrane Lipids/chemistry , Platelet Aggregation/physiology , Animals , Blood Platelets/cytology , Blood Platelets/metabolism , Fatty Acids, Essential/metabolism , Female , Linoleic Acid/administration & dosage , Linoleic Acid/metabolism , Rats , Rats, Wistar , Stress, Psychological , alpha-Linolenic Acid/administration & dosage , alpha-Linolenic Acid/metabolism
8.
Acta Vet Hung ; 52(2): 185-97, 2004.
Article in English | MEDLINE | ID: mdl-15168750

ABSTRACT

Broiler chicken and rabbit experiments were carried out to study the effects of nickel (Ni) supplementation on growth performance and Ni metabolism. ROSS cockerels and New Zealand White female rabbits were fed a diet containing Ni in concentrations of 0, 50 and 500 mg/kg in dry matter (DM). Dietary supplementation of 50 mg Ni/kg slightly improved the body weight gain (BWG) and had a beneficial effect on the feed conversion efficiency (FCE) in broiler chickens. However, Ni added at a level of 500 mg/kg significantly (P < 0.05) reduced the BWG by 10% and resulted in significantly (P < 0.05) worse (2.3 +/- 0.2 kg/kg) FCE. The relative weight of the liver in cockerels was significantly (P < 0.05) decreased by Ni as compared to the control group (1.7 and 2.1% vs. 2.6%). The activity of AST and CHE enzymes was increased insignificantly by dietary supplementation of 500 mg Ni/kg, indicating damage of the liver parenchyma. The results of serum biochemistry were confirmed by a mild or moderate form of pathological focal fatty infiltration of the liver in broilers. Supplemental Ni of 50 mg/kg concentration resulted in non-significantly increased BWG in rabbits. Ni added to the diet at a level of 500 mg/kg reduced the digestibility of crude protein by 3-4% and that of crude fibre by 20-25% in rabbits. Approx. 98% of the ingested Ni was lost from the body via the faeces, 0.5-1.5% via the urine and approx. 1% was incorporated into the organs of rabbits. As a result of dietary supplementation of 50 and 500 mg Ni/kg, Ni accumulated in the kidneys (4.9 +/- 0.5 and 17.1 +/- 3.1 vs. 1.9 +/- 0.3 mg/kg DM), ribs (10.3 +/- 0.4 and 10.4 +/- 0.6 vs. 9.1 +/- 0.6 mg/kg DM), heart (1.4 +/- 0.2 and 2.5 +/- 0.4 vs. 1.0 +/- 0.1 mg/kg DM) and liver (1.3 +/- 0.1 and 2.2 +/- 0.2 vs. 0.9 +/- 0.05 mg/kg DM), as compared to the control animals. It can be stated that supplementation of the diet with 50 mg Ni/kg had slight but non-significant beneficial effects on the growth performance of broiler chickens and rabbits.


Subject(s)
Chickens/growth & development , Dietary Supplements , Nickel/administration & dosage , Rabbits/growth & development , Animal Feed , Animals , Bone and Bones/metabolism , Chickens/metabolism , Kidney/metabolism , Liver/enzymology , Liver/metabolism , Myocardium/metabolism , Nickel/pharmacokinetics , Rabbits/metabolism , Tissue Distribution
10.
Scand J Rheumatol ; 31(4): 226-9, 2002.
Article in English | MEDLINE | ID: mdl-12369655

ABSTRACT

Diffuse idiopathic skeletal hyperostosis (DISH) is a skeletal disease characterized by ligamentous ossification of the antero-lateral side of the spine. The prevalence of DISH was studied in a cross-sectional, population-based study of Hungarian men and women, 50 years and over. The study was based on an analysis of the lateral thoracic and lateral lumbar radiographs of 635 persons recruited from a population register in Budapest, Hungary. Radiographs were taken according to standardised protocol and DISH was classified using the Resnick and modified Resnick criteria. The prevalence of hyperostosis according to the modified Resnick criteria was 27.3% in men and 12.8% in women. There was an increase in the prevalence of DISH with increasing age in men, from 10.0% in the 50-54 year age group to 36.6% in those over 75 years, and in women from 1.9% to 25.9% in the same age groups. According to this radiology survey the disease is more frequent and more severe in men than in women throughout life.


Subject(s)
Hyperostosis/epidemiology , Age Distribution , Aged , Female , Humans , Hungary/epidemiology , Male , Middle Aged , Prevalence , Sex Distribution
11.
Rheumatology (Oxford) ; 41(1): 27-30, 2002 Jan.
Article in English | MEDLINE | ID: mdl-11792876

ABSTRACT

OBJECTIVE: Diffuse idiopathic skeletal hyperostosis (DISH) is a skeletal disease characterized by ligamentous ossification of the anterolateral side of the spine. The aim of this study was to characterize risk factors associated with DISH. METHODS: Subjects were recruited for participation in a screening survey of vertebral osteoporosis. The cases were 69 men and 62 women with DISH and the controls were 69 men and 62 women with spondylosis over the age of 50 yr. Cases and controls were matched for age and sex. Radiographs were taken according to a standardized protocol and DISH was classified using the Resnick criteria. Laboratory parameters and an interviewer-administered questionnaire were used to obtain data about exposure. RESULTS: The mean ages of the populations with DISH and spondylosis were 65.2+/-8.8 and 65.0+/-9.1 yr respectively. Compared with controls, patients with DISH had a greater body mass index (27.8 vs 26.0 kg/m(2), P<0.05) and a higher serum level of uric acid (308 vs 288 micromol/l, P<0.05) and were more likely to have had diabetes mellitus (19.8 vs 9.1%, P<0.05). CONCLUSION: DISH is clearly a distinct disorder with risk factors that distinguish it from other spinal degenerative diseases.


Subject(s)
Hyperostosis, Diffuse Idiopathic Skeletal/diagnosis , Hyperostosis, Diffuse Idiopathic Skeletal/epidemiology , Age Distribution , Aged , Aged, 80 and over , Anthropometry , Case-Control Studies , Cohort Studies , Disease Progression , Female , Humans , Hungary/epidemiology , Hyperostosis, Diffuse Idiopathic Skeletal/rehabilitation , Incidence , Life Style , Male , Middle Aged , Probability , Prognosis , Reference Values , Risk Factors , Sampling Studies , Severity of Illness Index , Sex Distribution
12.
Clin Rheumatol ; 20(1): 36-43, 2001.
Article in English | MEDLINE | ID: mdl-11254239

ABSTRACT

The aim of the study was to create subgroups among psoriatic arthritis patients on the basis of dermatological features, clinical pattern of arthritis, and laboratory, immunological and radiological findings. Data on 100 patients were expressed in a standardised form and entered into hierarchical cluster analysis according to Ward's method. Seven subgroups were created. Fifty-six patients with mild psoriasis were sorted into a 'polyarticular group'. Two 'RA-like groups' were formed, differing from each other serologically and in axial involvement. In an 'oligoarticular group' (18 patients) serious skin disease and female gender predominancy were found to be characteristic. Eight patients with polyarticular arthritis were assigned to an 'erythrodermal group', in which polyarticular arthritis, mutilating, severe arthritis and a history of erythroderma were characteristic. Close to this group on the dendrogram eight women were sorted into a 'distal form'. Sausage fingers were frequent, and nail dystrophy was present in every case. In a 'pustular group' (three patients) the different type of skin involvement was considered and nail dystrophy was common. In the newly created subgroups not only the arthritic status, but also the type of the skin disease, played a determining role.


Subject(s)
Arthritis, Psoriatic/classification , Arthritis, Psoriatic/pathology , Adult , Aged , Analysis of Variance , Cluster Analysis , Female , Humans , Male , Middle Aged
13.
Eur Radiol ; 10(10): 1664-8, 2000.
Article in English | MEDLINE | ID: mdl-11044945

ABSTRACT

The authors describe the case of a male patient who had had Paget's disease since 1973 which led to the diffuse swelling of the proximal femur in 1993. The elevated alkaline phosphatase level and the destructive lytic lesions on the X-ray of the femur raised the possibility of malignancy. The bone scan showed increased accumulation in the proximal part of the left femur. On the MR the low T1 and the elevated T2 signal intensity suggested malignity despite that in some regions signals typical of adipose tissue could also be seen, which is usually interpreted as a sign of benignity. In the histological specimens no signs of malignant tumour cells were identified. The patient received bisphosphonate treatment which decreased his pain and swelling and also the alkaline phosphatase level. The patient died because of a rapidly progressing retroperitoneal fibrosarcoma and lung metastasis in 1996. The autopsy did not prove any malignant transformation of Paget's disease of bone in the proximal femur.


Subject(s)
Bone Neoplasms/diagnosis , Femur , Fibrosarcoma/diagnosis , Osteitis Deformans/complications , Biopsy , Bone Neoplasms/complications , Diagnosis, Differential , Fatal Outcome , Femur/diagnostic imaging , Femur/pathology , Fibrosarcoma/etiology , Humans , Magnetic Resonance Imaging , Male , Middle Aged , Osteitis Deformans/diagnosis , Tomography, X-Ray Computed
14.
Pediatrics ; 106(4 Suppl): 909-18, 2000 Oct.
Article in English | MEDLINE | ID: mdl-11044143

ABSTRACT

Nearly 750 000 children are currently in foster care in the United States. Recent trends in foster care include reliance on extended family members to care for children in kinship care placements, increased efforts to reduce the length of placement, acceleration of termination of parental rights proceedings, and emphasis on adoption. It is not clear what impact welfare reform may have on the number of children who may require foster care placement. Although most children enter foster care with medical, mental health, or developmental problems, many do not receive adequate or appropriate care while in placement. Psychological and emotional problems, in particular, may worsen rather than improve. Multiple barriers to adequate health care for this population exist. Health care practitioners can help to improve the health and well-being of children in foster care by performing timely and thorough admission evaluations, providing continuity of care, and playing an active advocacy role. Potential areas for health services research include study of the impact of different models of health care delivery, the role of a medical home in providing continuity of care, the perception of the foster care experience by the child, children's adjustment to foster care, and foster parent education on health outcomes.


Subject(s)
Foster Home Care , Adolescent , Child , Family Relations , Foster Home Care/history , Foster Home Care/legislation & jurisprudence , Foster Home Care/psychology , Health Care Reform , Health Services/statistics & numerical data , Health Status , History, 19th Century , History, 20th Century , Humans , Mental Health Services , Social Welfare , United States
15.
Radiat Res ; 153(4): 479-86, 2000 Apr.
Article in English | MEDLINE | ID: mdl-10761010

ABSTRACT

Human peripheral blood samples collected from three healthy human volunteers were exposed in vitro to pulsed-wave 2450 MHz radiofrequency (RF) radiation for 2 h. The RF radiation was generated with a net forward power of 21 W and transmitted from a standard gain rectangular antenna horn in a vertically downward direction. The average power density at the position of the cells in the flask was 5 mW/cm(2). The mean specific absorption rate, calculated by finite difference time domain analysis, was 2.135 (+/-0.005 SE) W/kg. Aliquots of whole blood that were sham-exposed or exposed in vitro to 50 cGy of ionizing radiation from a (137)Cs gamma-ray source were used as controls. The lymphocytes were examined to determine the extent of primary DNA damage (single-strand breaks and alkali-labile lesions) using the alkaline comet assay with three different slide-processing schedules. The assay was performed on the cells immediately after the exposures and at 4 h after incubation of the exposed blood at 37 +/- 1 degrees C to allow time for rejoining of any strand breaks present immediately after exposure, i.e. to assess the capacity of the lymphocytes to repair this type of DNA damage. At either time, the data indicated no significant differences between RF-radiation- and sham-exposed lymphocytes with respect to the comet tail length, fluorescence intensity of the migrated DNA in the tail, and tail moment. The conclusions were similar for each of the three different comet assay slide-processing schedules examined. In contrast, the response of lymphocytes exposed to ionizing radiation was significantly different from RF-radiation- and sham-exposed cells. Thus, under the experimental conditions tested, there is no evidence for induction of DNA single-strand breaks and alkali-labile lesions in human blood lymphocytes exposed in vitro to pulsed-wave 2450 MHz radiofrequency radiation, either immediately or at 4 h after exposure.


Subject(s)
DNA Damage , DNA, Single-Stranded/radiation effects , Lymphocytes/radiation effects , Radio Waves , Comet Assay , Humans , In Vitro Techniques
16.
Toxicon ; 38(3): 381-9, 2000 Mar.
Article in English | MEDLINE | ID: mdl-10669027

ABSTRACT

Sensitive and specific enzyme-linked immunosorbent assays were developed to detect Clostridium botulinum neurotoxin serotypes A (BoNT A) and B (BoNT B) in assay buffer and human serum. The assay is based upon affinity-purified horse polyclonal antibodies directed against the approximately 50 kDa C-fragments of each toxin. Standard curves were linear over the range of 0.1-10 ng mL. Detection was possible at 0.2 ng mL (20 pg/well) and accurate quantitation at 0.5 ng/mL (50 pg well) in assay buffer and 10% human serum. Variations between triplicates was typically 5-10%. Less than 1% cross reactivity occurred between other serotypes when each assay was performed against serotypes A, B and E. When tested against toxins complexed to their associated nontoxic proteins, interference was absent (BoNT B) or < 25% (BoNT A). These assays demonstrate sensitivity close to that of the mouse bioassay without the use of animals and in a much simpler format than other reported assays of similar sensitivity.


Subject(s)
Botulinum Toxins, Type A/analysis , Botulinum Toxins/analysis , Neurotoxins/analysis , Animals , Biological Assay , Biotin/chemistry , Chromatography, Affinity , Colorimetry , Cross Reactions , Enzyme-Linked Immunosorbent Assay , Humans , Mice
17.
Scand J Rheumatol ; 28(4): 216-21, 1999.
Article in English | MEDLINE | ID: mdl-10503557

ABSTRACT

The aim of the study was to assess the efficacy of a new formulation of cyclosporin-A (CyA) and sulfasalazine (SASP) combination treatment in preventing disability and reducing inflammatory disease activity in patients with early rheumatoid arthritis, as well as to assess the tolerability, safety, and suitability for long-term treatment. Forty five patients with early, active rheumatoid arthritis, (RA) were treated with CyA and SASP combination therapy for 12 months. The patients were evaluated by disease activity and radiologic measurements. The combined CyA and SASP therapy seems to be effective. Disease activity parameters improved within 3 months. The individual treatment response rate according to EULAR response criteria was 78% after a one year treatment period. Five patients were withdrawn due to gastrointestinal side effect and two patients because of lack of efficacy. CyA and SASP combination treatment seems to be effective in early severe RA, and with careful monitoring, side effects can be kept under control.


Subject(s)
Anti-Inflammatory Agents, Non-Steroidal/therapeutic use , Arthritis, Rheumatoid/drug therapy , Cyclosporine/therapeutic use , Immunosuppressive Agents/therapeutic use , Sulfasalazine/therapeutic use , Adult , Anti-Inflammatory Agents, Non-Steroidal/adverse effects , Arthritis, Rheumatoid/diagnostic imaging , Arthritis, Rheumatoid/physiopathology , Cyclosporine/adverse effects , Drug Therapy, Combination , Female , Humans , Immunosuppressive Agents/adverse effects , Male , Middle Aged , Radiography , Sulfasalazine/adverse effects , Time Factors
18.
Acta Vet Hung ; 47(2): 181-90, 1999.
Article in English | MEDLINE | ID: mdl-10344079

ABSTRACT

Carrots were grown on soils polluted by heavy metal salts. Each particular microelement reached a high concentration [molybdenum (Mo) 39.00, cadmium (Cd) 2.30, lead (Pb) 4.01, mercury (Hg) 30.00, and selenium (Se) 36.20 mg/kg dry matter] in the carrot. In a metabolic balance trial conducted with 15 male and 15 female New Zealand White rabbits, the control animals (n = 5) were fed ad libitum with concentrate as basal diet, while the other rabbits received the basal diet and carrots containing the particular microelement. Blood samples were taken to determine the activity of serum enzymes. To investigate the metabolism of Mo, Cd, Pb, Hg and Se, samples were taken from the heart, liver, lungs, kidneys, spleen, ovaries/testicles, entire digestive tract, adipose tissue, femur, hair, faeces and urine. Carrot had significantly higher digestibility for all nutrients than the rabbit concentrate. Carrot samples of high Pb content had the lowest digestibility of crude protein. The microelements differed in their rate of accumulation in the organs examined: Mo and Cd accumulated in the kidneys, Pb in the kidneys, liver, bones and lungs, Hg in the kidneys and liver, while Se in the liver, kidneys and heart. The proportions of microelements eliminated from the body either via the faeces and urine (Mo 80.18% and Se 47.41%) or via the faeces (Cd 37.86%, Pb 66.39%, Hg 64.65%) were determined. Pathohistological examination revealed that the rate of spermatogenesis was reduced in the Mo, Cd, Pb and Hg groups compared to the control. Lead, Cd and Hg intake resulted in a considerable decrease in gamma-glutamyltransferase (GGT) and in an increase of alkaline phosphatase (ALP) activity because of damages to the kidneys and bones. All experimental treatments decreased the activity of cholinesterase (CHE) because of lesions in the liver.


Subject(s)
Daucus carota/metabolism , Metals, Heavy/metabolism , Rabbits/metabolism , Soil Pollutants/metabolism , Animals , Blood Chemical Analysis/veterinary , Cadmium/metabolism , Cadmium/toxicity , Enzymes/blood , Female , Lead/metabolism , Lead/toxicity , Male , Mercury/metabolism , Mercury/toxicity , Metals, Heavy/toxicity , Molybdenum/metabolism , Molybdenum/toxicity , Organ Size/drug effects , Soil Pollutants/toxicity
19.
Orv Hetil ; 140(7): 347-52, 1999 Feb 14.
Article in Hungarian | MEDLINE | ID: mdl-10091504

ABSTRACT

The authors' aim was to derive Hungarian normal vertebral heights, height ratios and threshold values. The mean -3 SD of these ratios give them the threshold values for defining normal vertebraes. They examined the standardized vertebral morphometric measurements obtained in a cross-sectional population survey. Radiographs were taken according to standardized protocol and morphomeric measurements of anterior, central and posterior heights from thoracic 4 to lumbar 4 were made with a semiautomatic technique. The anterior, central, posterior I and posterior II height ratios were calculated for each vertebra. The mean and standard deviation of these ratios for each sex were derived using a statistical procedure to normalize the distribution. From the normally distributed vertebral height ratios the mean and standard deviation give us the threshold values for defining normal vertebraes. Anterior and central vertebral height ratios were smaller in males than females. The authors compared the ratios and threshold values in different European centers using the same method. The data confirm that vertebral height ratios vary between and within populations and the authors suggest that normal values for vertebral height ratios should be derived separately for males and females at each vertebral level. Having the normal values the knowledge of the Hungarian normal vertebral height ratios gives the possibility to carry on multicentre clinical, therapeutic and epidemiologic studies of vertebral deformity in Hungary. The authors suggest the widespread use of morphometry to evaluate vertebral osteoporosis because it can be done in every radiology unit, it is a cheap and easy method for measuring the bone mineral content.


Subject(s)
Spine/anatomy & histology , Anthropometry , Cross-Sectional Studies , Europe , Female , Humans , Hungary , Lumbar Vertebrae/abnormalities , Lumbar Vertebrae/anatomy & histology , Lumbar Vertebrae/diagnostic imaging , Male , Osteoporosis/epidemiology , Population Surveillance , Radiography , Reference Values , Sex Factors , Spine/abnormalities , Spine/diagnostic imaging , Thoracic Vertebrae/abnormalities , Thoracic Vertebrae/anatomy & histology , Thoracic Vertebrae/diagnostic imaging
20.
Pediatr Rev ; 19(2): 39-50, 1998 Feb.
Article in English | MEDLINE | ID: mdl-9473940

ABSTRACT

Caring for children in foster care, as for any child who has complex issues, is challenging and sometimes daunting. The pediatrician should become familiar with the intricacies of foster care agencies and the consent and confidentiality issues for children in dependent care. While maintaining communication with the social services agency, the physician should assume the responsibility for health care case management to promote regular comprehensive preventive health care; to ensure that children in foster care have access to all necessary services; and to optimize the physical, emotional, developmental, and mental health status of children placed into dependent care.


Subject(s)
Foster Home Care , Pediatrics , Child , Delivery of Health Care , Foster Home Care/legislation & jurisprudence , Foster Home Care/statistics & numerical data , Health Status , Humans , Mental Health , United States
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