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1.
Plant Dis ; 97(9): 1249, 2013 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-30722465

RESUMO

Gooseberry (Ribes uva-crispa L.) is a commonly grown fruit tree or bush in the Czech Republic. Colletotrichum acutatum J. H. Simmonds is a polyphagous fungal plant pathogen. This pathogen has been reported causing anthracnose on strawberry in the Czech Republic (2), and recently it has become an important pathogen on the fruits of apple and tomato (4). In 2012, anthracnose symptoms were noticed on fruits of gooseberry (locality Pribyslavice, near Brno). The symptoms on fruit surfaces were round, brown, shriveled, sunken spots of 1.2 to 2.0 cm, with orange conidial masses on the spots. The pathogen was isolated from symptomatic fruits on PDA and cultured at 25 ± 2°C. The color of colonies varied with age from white to gray with occurrence of orange conidial masses. Conidia were colorless and fusiform, size 13 to 17 × 4 to 5 µm (n = 100). The morphological characteristics classified the pathogen as a Colletotrichum sp. To fulfill Koch's postulates, 25 disinfested healthy gooseberry fruits were pinpricked by sterile needle and 10 µl of spore suspension (1 × 105 conidia ml-1) was inoculated by pipetting into the wound. Control fruits were treated with sterile distilled water. The fruits were transferred to a growth cabinet and maintained at a temperature of 25 ± 2°C, relative humidity 70 ± 5%. Similar anthracnose symptoms were observed on all of gooseberry fruits a week after inoculation, whereas no symptoms appeared on control fruits. The pathogen was reisolated from infected fruits. Species determination of the isolates was confirmed by PCR. Specific primers designed in region ITS1, the 5.8S RNA gene, and region ITS2 of the pathogen DNA were selected. Specific primers CaInt2 and ITS4 were used to identify C. acutatum (3), and primers CgInt and ITS4 were used to determine C. gloeosporioides isolate CCM 177 (1), which was used as a control. Our isolates yielded PCR products (size 490 bp) only with primers designed for C. acutatum. The C. gloeosporioides isolate yielded PCR product (size 450 bp) only with CgInt and ITS4 primers. PCR products were sequenced and identified with the BLAST program. The sequence of the gooseberry fruit isolates (Accession No. JX843763 and JX843764) matched with 100% similarity to the C. acutatum sequences in GenBank. To our knowledge, this is the first report of C. acutatum sensu lato on gooseberry fruits in the Czech Republic. This pathogen can endanger the production of gooseberry fruits in this region. References: (1) P. R. Mills et al. FEMS Microbiol. Lett., 98:137, 1992. (2) D. Novotný et al. Plant Dis. 91:1516, 2007. (3) S. Sreenivasaprasad et al. Plant Pathol. 45:650, 1996. (4) J. Víchová et al. Plant Dis. 96:769, 2012.

2.
Plant Dis ; 96(5): 769, 2012 May.
Artigo em Inglês | MEDLINE | ID: mdl-30727569

RESUMO

Apple (Malus domestica Borkh.) is a fruit traditionally grown in the Czech Republic, and tomatoes (Solanum lycopersicum Mill.), too, are widely raised in this region. Colletotrichum acutatum J. H. Simmonds is a polyphagous fungal plant pathogen. Earlier, this pathogen caused disease on strawberry in the Czech Republic (2), and now it has become an important pathogen on safflower (4). During the 2010 harvest, anthracnose symptoms were noticed on the fruits of apple and tomato. Infected apples fruits (localities Velká Bítes and Znojmo) and tomatoes (localities Velká Bítes and Zabcice) were collected. Typical symptoms on fruit surfaces were round, brown, shriveled and sunken spots, 1.2 to 2.0 cm, with orange conidial masses appearing on the spots. A fungus was isolated from each host on potato dextrose agar and cultured at 25 ± 2°C for 10 days. Mycelium was superficial, partly immersed, and white to gray with occurrence of orange conidial masses. Conidia of the tomato and apple isolates were colorless and fusiform. The size of conidia from the apple and tomato isolates, respectively, ranged from 11 to 15 × 2.5 to 3.5 µm and 11 to 16 × 2.5 to 4 µm. Morphological characteristics suggested that the isolated fungi was a Colletotrichum sp. To fulfill Koch's postulates, healthy tomato and apple fruits were disinfected with 3% sodium hypochlorite for 2 min and rinsed in sterile distilled water. Fruits were pinpricked with a sterile needle and 10 µl of a spore suspension (1 × 105 conidia ml-1) was inoculated by pipetting into the wound. Control fruits were treated with sterile distilled water. The fruits were transferred to a growth cabinet and maintained at a temperature of 25 ± 2°C, relative humidity of 70 ± 5%, and a photoperiod of 12 h. Similar disease symptoms as in the collected fruits were observed on tomato fruits at 7 days and apple fruits at 20 days after inoculation, while no symptoms appeared on control fruits. The pathogen was reisolated from infected fruits. Species determination of the isolates was confirmed by PCR. Specific primers designed in region ITS1, the 5.8S RNA gene, and region ITS2 of the pathogen DNA were selected. Specific primers CaInt2 and ITS4 were used to identify C. acutatum (3), and primers CgInt and ITS4 were used to determine C. gloeosporioides isolate CCM 177 (1), which was used as a control. Our isolates yielded PCR products (490 bp) only with primers designed for C. acutatum. The C. gloeosporioides isolate yielded a PCR product (450 bp) only with CgInt and ITS4 primers. PCR products were sequenced and identified with the BLAST program. The sequence of the tomato fruit isolate (Accession No. JN676199) and apple fruit isolate (Accession No. JN676198) matched with 100% similarity to the C. acutatum sequences in GenBank. The control isolate of C. gloeosporioides matched 100% to sequences AJ749682 and AJ749692. To our knowledge, this is the first report of C. acutatum on tomato and apple fruits in the Czech Republic. This pathogen can endanger the production and storage of apples and tomatoes in this region. References: (1) P. R. Mills et al. FEMS Microbiol. Lett. 98:137, 1992. (2) D. Novotný et al. Plant Dis. 91:1516, 2007. (3) S. Sreenivasaprasad et al. Plant Pathol. 45:650, 1996. (4) J. Víchová et al. Plant Dis. 95:79, 2011.

3.
Plant Dis ; 95(1): 79, 2011 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-30743671

RESUMO

Safflower (Carthamus tinctorius L.) is an oil crop that is suitable for dry growing conditions in the Czech Republic. Most of the Czech production is used as bird feed. Typical anthracnose symptoms were observed at one safflower field in the Moravia Region of the Czech Republic during the 2005 growing season. Since then, the disease has become widespread with 100% yield losses observed in several locations in 2009. Symptoms consisted of circular spots on leaves and stem blight characterized by dark-colored stem lesions bearing salmon-colored conidia masses in acervuli. A fungus was isolated from symptomatic safflower plants (cv. Sabina) on potato dextrose agar and incubated at 25°C as described by Kwon et al. (3). The color of fungal colonies changed from white to gray with age with salmon-orange pigmentation on the reverse side of plates. Similar observations had been reported by Jelev et al. (1). Conidia were colorless, fusiform, and measured 10 to 17 µm (mean 13.59) × 4 to 8 µm (mean 5.98). Morphology suggested a Colletotrichum sp. To fulfill Koch' postulates, safflower plants at the BBCH 12 growth stage (second leaf fully expanded) were spray inoculated with a conidia suspension (1 × 105 conidia/ml). Growth chamber conditions were temperature 20 ± 1°C, relative humidity 70 ± 5%, with a 16-h photoperiod. Control plants were treated with sterile distilled water. Typical anthracnose symptoms were observed 1 week after inoculation. Control plants were symptomless. The pathogen was reisolated from infected stems and leaves. PCR with primers CaInt2 and ITS4 was used to confirm the identification of a Colletotrichum sp. Reaction products obtained with these primers were approximately 500 bp long. The ribosomal DNA internal transcribed spacer region containing ITS1, 5.8S, and ITS2 of the isolate from safflower was sequenced and identified with the BLASTn program. The sequence matches with 100% similarity to the sequence of the Glomerella acutata teleomorph of Colletotrichum acutatum (GenBank Accession No. AB548282) and 100% similarity to C. simmondsii (GenBank Accession No. GU183359). C. acutatum and C. simmondsii can be distinguished from each other by pigment color (4), with the safflower isolate matching the description of C. simmondsii. Kim et al. (2) recorded C. acutatum on safflower fields in the Euiseong area of Korea in 1997. To our knowledge, this is the first report of C. simmondsii causing safflower anthracnose in the Czech Republic. References: (1) Z. J. Jelev et al. Plant Dis. 92:172, 2008. (2) W. G. Kim et al. Plant Pathol. J. 15:62, 1999. (3) J. H. Kwon et al. Plant Pathol. J. 15:172, 1999. (4) R. G. Shivas and Y. P. Tan. Fungal Divers. 39:111, 2009.

4.
Plant Cell Environ ; 33(12): 2001-11, 2010 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-20573048

RESUMO

Under elevated atmospheric CO(2) concentrations, soil carbon (C) inputs are typically enhanced, suggesting larger soil C sequestration potential. However, soil C losses also increase and progressive nitrogen (N) limitation to plant growth may reduce the CO(2) effect on soil C inputs with time. We compiled a data set from 131 manipulation experiments, and used meta-analysis to test the hypotheses that: (1) elevated atmospheric CO(2) stimulates soil C inputs more than C losses, resulting in increasing soil C stocks; and (2) that these responses are modulated by N. Our results confirm that elevated CO(2) induces a C allocation shift towards below-ground biomass compartments. However, the increased soil C inputs were offset by increased heterotrophic respiration (Rh), such that soil C content was not affected by elevated CO(2). Soil N concentration strongly interacted with CO(2) fumigation: the effect of elevated CO(2) on fine root biomass and -production and on microbial activity increased with increasing soil N concentration, while the effect on soil C content decreased with increasing soil N concentration. These results suggest that both plant growth and microbial activity responses to elevated CO(2) are modulated by N availability, and that it is essential to account for soil N concentration in C cycling analyses.


Assuntos
Atmosfera , Ciclo do Carbono , Dióxido de Carbono , Ciclo do Nitrogênio , Solo/análise , Árvores/crescimento & desenvolvimento , Biomassa , Fertilizantes
5.
Acta Virol ; 53(4): 277-80, 2009.
Artigo em Inglês | MEDLINE | ID: mdl-19941392

RESUMO

Three isolates of Bean yellow mosaic virus (BYMV) from the Czech Republic originating from gladiolus plants were examined according to their biological and molecular characteristics. Partial sequence of coat protein-nuclear inclusion protein b (CP-NIb) coding region (768 bp) of these isolates were determined and compared with the corresponding sequences of different BYMV isolates obtained from GeneBank. Phylogenetic analysis showed that the Czech BYMV isolates were distributed across the three groups of phylogenetic tree. Their placement was not dependent on the geography or host plant.


Assuntos
Fabaceae/virologia , Variação Genética , Iridaceae/virologia , Doenças das Plantas/virologia , Potyvirus/genética , Proteínas do Capsídeo/genética , República Tcheca , Filogenia , Potyvirus/classificação , Potyvirus/isolamento & purificação , Potyvirus/fisiologia , Análise de Sequência de DNA , Proteínas Virais/genética
6.
Acta Virol ; 52(1): 53-7, 2008.
Artigo em Inglês | MEDLINE | ID: mdl-18459836

RESUMO

Eight isolates of the Pea seed-borne mosaic virus (PSbMV) from the Czech Republic were studied regarding their biological and molecular characteristics. Molecular characterization using RT-PCR was done on the 5'(Nter)NIb-CP-UTR3' region amplified using universal CPUP/P9502 primer pair and the newly designed PSB8812/PSB944, and PSB8800/PSB9440 primer pairs, respectively. Sequential and phylogenetic analysis of CP-UTR3' region from all isolates showed that the available Czech and GenBank PSbMV isolates were distributed into 4 clusters in agreement with their diversification and according to their biological characteristics (i.e. pathotype). The molecular data were confirmed by biological testing on different pea cultivars. The Czech isolates were distributed into two pathotypes, the P-1 (7 isolates) and P-4 (1 isolate).


Assuntos
Variação Genética , Pisum sativum/virologia , Doenças das Plantas/virologia , Potyvirus/genética , Potyvirus/isolamento & purificação , Sequência de Aminoácidos , República Tcheca , Dados de Sequência Molecular , Filogenia , Potyvirus/química , Potyvirus/classificação , Alinhamento de Sequência , Proteínas Virais/química , Proteínas Virais/genética
7.
Ann Nutr Metab ; 51(5): 461-7, 2007.
Artigo em Inglês | MEDLINE | ID: mdl-18025820

RESUMO

AIM: The purpose of our study was to determine the content of trans fatty acids in early human breast milk as an indicator of dietary exposure in a sample of Roma breast-feeding women and in a sample of women from the general Czech population. METHODS: We collected samples of early human milk from 43 Prague women from the general population and 21 Roma women. After lipid extraction, the fatty acids were converted into methyl esters (FAMEs). Finally, gas chromatography with flame ionization detector (GC-FID) analysis on a CP-Sil 88 column was used to determine C18:1 trans monoenic fatty acid levels and total trans isomers fatty acid levels in human milk. RESULTS: A significantly higher content of C18:1 trans fatty acid isomers was detected in human milk fat from Roma mothers than in women of the general population (2.73 vs. 2.09%, p < 0.05). Both groups monitored did not differ in the representation of total fatty acid trans isomers. Differences in the frequency of consumption of certain TFA sources (butter, fried crisps) were established. CONCLUSIONS: The study proved a higher fatty acid trans isomers content in Roma breast-feeding mothers in the Czech Republic, and this is probably related to their bad eating habits.


Assuntos
Dieta , Lactação/metabolismo , Leite Humano/química , Ácidos Graxos trans/análise , Adulto , Aleitamento Materno , Cromatografia Gasosa , República Tcheca , Etnicidade , Feminino , Humanos , Estereoisomerismo
8.
J Photochem Photobiol B ; 85(1): 1-16, 2006 Oct 02.
Artigo em Inglês | MEDLINE | ID: mdl-16725342

RESUMO

The blue light photoreceptor cryptochrome 3 (cry3) from Arabidopsis thaliana was characterized at room temperature in vitro in aqueous solution by optical absorption and emission spectroscopic studies. The protein non-covalently binds the chromophores flavin adenine dinucleotide (FAD) and N5,N10-methenyl-5,6,7,8-tetrahydrofolate (MTHF). In the dark-adapted state of cry3, the bound FAD is present in the oxidized form (FAD(ox), ca. 38.5%), in the semiquinone form (FADH., ca. 5%), and in the fully reduced neutral form (FAD(red)H2) or fully reduced anionic form (FAD(red)H-, ca. 55%). Some amount of FAD (ca. 1.5%) in the oxidized state remains unbound probably caused by chromophore release and/or denaturation. Förster-type energy transfer from MTHF to FAD(ox) is observed. Photo-excitation reversibly modifies the protein conformation causing a slight rise of the MTHF absorption strength and an increase of the MTHF fluorescence efficiency (efficient protein conformation photo-cycle). Additionally there occurs reversible reduction of bound FAD(ox) to FAD(red)H2 (or FAD(red)H-, FAD(ox) photo-cycle of moderate efficiency), reversible reduction of FADH. to FAD(red)H2 (or FAD(red)H-, FADH. photo-cycle of high efficiency), and modification of re-oxidable FAD(red)H2 (or FAD(red)H-) to permanent FAD(red)H2 (or FAD(red)H-) with low quantum efficiency. Photo-excitation of MTHF causes the reversible formation of a MTHF species (MTHF', MTHF photo-cycle, moderate quantum efficiency) with slow recovery to the initial dark state, and also the formation of an irreversible photoproduct (MTHF'').


Assuntos
Proteínas de Arabidopsis/análise , Arabidopsis/química , Desoxirribodipirimidina Fotoliase/análise , Flavina-Adenina Dinucleotídeo/metabolismo , Flavoproteínas/química , Ácido Fólico/análogos & derivados , Absorção , Proteínas de Arabidopsis/química , Proteínas de Arabidopsis/metabolismo , Criptocromos , Desoxirribodipirimidina Fotoliase/química , Desoxirribodipirimidina Fotoliase/metabolismo , Transporte de Elétrons , Transferência de Energia , Flavina-Adenina Dinucleotídeo/química , Ácido Fólico/química , Ácido Fólico/metabolismo , Quinonas/química , Quinonas/metabolismo , Espectrometria de Fluorescência/métodos , Temperatura , Fatores de Tempo
9.
Cancer Res ; 53(24): 5915-9, 1993 Dec 15.
Artigo em Inglês | MEDLINE | ID: mdl-8261403

RESUMO

Twenty chemotherapy-naive patients with ovarian carcinoma received 1, 5, 10, or 15 micrograms/kg/day (five patients per dose step) of recombinant human interleukin 3 (rhIL-3) over 7 days after carboplatin/cyclophosphamide in Cycles 1 and 3. Patients received rhIL-3 by continuous i.v. infusion or once daily s.c. injection in Cycle 1 and the alternate route in Cycle 3. Plasma rhIL-3 samples were obtained once daily on Days 1 to 6 and serially over a 24-h period on Day 7 for pharmacokinetic assessment of s.c. and i.v. administered rhIL-3 in 16 and 17 patients, respectively. Concentrations were assayed by a time-resolved fluorescence sandwich immunoassay. Pharmacokinetic parameters were derived by noncompartmental methods. Mean steady-state concentrations during continuous i.v. infusion ranged from 117 pg/ml (1 microgram/kg/day) to 2217 pg/ml (15 micrograms/kg/day) and were linearly related to dose (r = 0.87, P < 0.001). When dose normalized, the mean steady-state concentrations were comparable at all doses. The total-body clearance was approximately 4 to 5 ml/min/kg. Elimination half-life (t1/2 i.v.) could be assessed for the 5- to 15-micrograms/kg/day dose levels and was 53, 41, and 26 min for the 5-, 10-, and 15-micrograms dose levels, respectively (not significant between dose levels). Following s.c. injection, the maximum rhIL-3 plasma concentration ranged from 206 pg/ml (1 microgram/kg/day) to 6930 pg/ml (15 micrograms/kg/day). Both the maximum measured plasma concentration (r = 0.89, P < 0.0001) and the area under the plasma concentration/time curve (r = 0.93, P < 0.0001) were related to dose. Dose-normalized values were comparable over the entire dose range. Elimination t1/2s.c. was 4.8 h at the 1-microgram dose level and roughly half this time for the 5- to 15-micrograms/kg/day dose levels. The systemic clearance of approximately 5 to 6 ml/min/kg was comparable at all dose levels. Based on trough levels of the 7-day s.c. course, no rhIL-3 accumulation occurred. Bioavailability of s.c. administered rhIL-3 was nearly 100%. No correlation between creatinine clearance and pharmacokinetic parameters of rhIL-3 could be demonstrated. Since there was also no difference in hematological efficacy between the two routes of rhIL-3 administration, we conclude that the s.c. route of administration appears to have no disadvantages over the i.v. route and may facilitate its clinical application.


Assuntos
Interleucina-3/farmacocinética , Neoplasias Ovarianas/metabolismo , Adolescente , Adulto , Idoso , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Disponibilidade Biológica , Contagem de Células Sanguíneas/efeitos dos fármacos , Carboplatina/administração & dosagem , Ciclofosfamida/administração & dosagem , Feminino , Humanos , Infusões Intravenosas , Injeções Subcutâneas , Interleucina-3/administração & dosagem , Pessoa de Meia-Idade , Neoplasias Ovarianas/tratamento farmacológico , Proteínas Recombinantes/farmacocinética
10.
Neurology ; 44(11 Suppl 9): S29-31, 1994 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-7970008

RESUMO

The relationship among tizanidine dose, plasma concentration, and antispastic action is linear in nature. Response to a given dose of this agent varies among patients, and determining the appropriate clinical dose requires individual titration.


Assuntos
Clonidina/análogos & derivados , Relaxantes Musculares Centrais/administração & dosagem , Relaxantes Musculares Centrais/farmacocinética , Espasticidade Muscular/tratamento farmacológico , Clonidina/administração & dosagem , Clonidina/farmacocinética , Relação Dose-Resposta a Droga , Humanos , Espasticidade Muscular/sangue , Espasticidade Muscular/fisiopatologia
11.
Psychopharmacology (Berl) ; 124(3): 261-6, 1996 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-8740048

RESUMO

Effects of the novel competitive N-methyl-D-aspartate (NMDA)-receptor antagonist SDZ EAA 494 were investigated on memory and attention in humans. SDZ EAA 494 was administered either as single doses at a dose range of 1-50 mg, or as multiple doses over the course of 1 week at doses of 25 mg once or twice daily. Selected cognitive functions were assessed at baseline, 2 and 4 h after single dose administration, and at baseline, 2, 4 and 8 h on days 1 and 7 of multiple dose administration. The assessments included simple and complex reaction time tests to assess attention, and verbal, non-verbal and spatial memory tests with immediate and late recall. Verbal and non-verbal memory test performance was significantly impaired at a dose level of 50 mg after single administration, and of 25 mg twice daily after multiple administration, without concomitant significant impairment of reaction time. Spatial memory test performance was not significantly affected. The maximum effect occurred 2 h postmedication and was more pronounced after repeated administration. These results suggest that the inhibition of NMDA-receptors in humans may impair memory processes.


Assuntos
Atenção/efeitos dos fármacos , Antagonistas de Aminoácidos Excitatórios/farmacologia , Memória/efeitos dos fármacos , Piperazinas/farmacologia , Adulto , Método Duplo-Cego , Humanos , Masculino
12.
Surgery ; 122(2): 173-8; discussion 178-9, 1997 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-9288120

RESUMO

BACKGROUND: Identification of the genes causing inflammatory bowel disease (IBD) would enhance the understanding of and the treatment options for this disease. A hyperreactive immune response toward the intestinal flora has been implicated in the pathology of IBD. The natural resistance-associated macrophage protein (NRAMP) gene is believed to regulate macrophage function, especially the ability to fight intracellular pathogens. Genetic differences of NRAMP might, therefore, be associated with IBD. METHODS: Two DNA markers (D2S434 and D2S1323) near NRAMP were polymerase chain reaction (PCR) amplified and genotyped with DNA from 103 patients with Crohn's disease, 85 patients with ulcerative colitis, and 98 control subjects. Clinical data were obtained for all patients. Comparisons were made by chi-squared analysis. Disease association with significant haplotypes was expressed as odds ratio. RESULTS: Allele and genotype distributions were similar for both markers among all groups. Haplotype frequencies were different among Crohn's disease and control groups (p = 0.024). Two individual haplotypes of the patients with Crohn's disease were significant compared with control subjects: DA (p = 0.023; odds ratio, 0.5; 95% confidence interval, 0.3 to 0.9) and EA (p = 0.001; odds ratio, 3.5; 95% confidence interval, 1.6 to 3.2). The haplotype distribution was different within three age-of-onset groups of patients with Crohn's disease (p = 0.05). CONCLUSIONS: This study is the first to report an association between the NRAMP gene and Crohn's disease.


Assuntos
Proteínas de Transporte/genética , Proteínas de Transporte de Cátions , Doença de Crohn/genética , Proteínas de Ligação ao Ferro , Proteínas de Membrana/genética , Adolescente , Adulto , Idade de Início , Idoso , Alelos , Proteínas de Transporte/biossíntese , Intervalos de Confiança , Doença de Crohn/patologia , Doença de Crohn/cirurgia , Feminino , Marcadores Genéticos , Genótipo , Haplótipos , Humanos , Intestinos/patologia , Masculino , Proteínas de Membrana/biossíntese , Pessoa de Meia-Idade , Razão de Chances , Reação em Cadeia da Polimerase , Valores de Referência
13.
J Am Coll Surg ; 187(2): 147-52, 1998 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-9704960

RESUMO

BACKGROUND: Lumbar hernias are rare defects in the posterolateral abdominal wall that may be congenital or acquired. Repairing these defects is difficult by virtue of their location and the inherent weakness of the surrounding tissues. We report a series of seven patients who had their lumbar hernias repaired laparoscopically at two institutions. STUDY DESIGN: We retrospectively reviewed all lumbar hernias repaired laparoscopically in our institutions within the last 16 months (August 1996 to November 1997). Postoperative followup was 1-15 months. RESULTS: Seven patients underwent laparoscopic repair. Five hernias were acquired defects and two were congenital. One to three defects were found per patient. The average size of the hernia defect was 77.8 cm2. We used a polypropylene or a polytetrafluoroethylene mesh in all patients; the average size of the mesh used was 336.4 cm2. The average length of hospital stay was 1.7 days. One patient returned with an abscess over the mesh, which necessitated removal of the graft. Otherwise, there were no complications, and the remaining six patients had no recurrences after followup of 1-14 months. CONCLUSIONS: The laparoscopic approach is safe and effective for repairing lumbar hernias. Advantages of this approach include excellent operative visualization, decreased hospital stay postoperatively, and a solid repair without recurrence during shortterm followup.


Assuntos
Hérnia Ventral/cirurgia , Laparoscopia/métodos , Humanos , Tempo de Internação , Região Lombossacral , Complicações Pós-Operatórias , Estudos Retrospectivos , Telas Cirúrgicas
14.
Am Surg ; 62(6): 469-71, 1996 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-8651530

RESUMO

Exercise-induced rhabdomyolysis is a frequent event occurring after severe forms of exercise. This is usually a short-lived, uncomplicated phenomenon that is seldom of any clinical significance. The rare progression of this muscle injury to compartment syndrome is, however, a limb- and life-threatening condition that typically presents in the anterior compartment of the lower leg. A case is reported of a young man who participated in physical activity well beyond his normal level of exertion and subsequently developed bilateral lower extremity compartment syndrome requiring surgical decompression. To our knowledge, this is the only description of this complication occurring in a multicompartment, bilateral distribution. The combination of the rarity and morbidity of this condition, as well as the multitude of very common benign injuries that present in the same manner as the problem discussed, make this insult especially dangerous.


Assuntos
Basquetebol/lesões , Síndromes Compartimentais/etiologia , Perna (Membro) , Adulto , Síndromes Compartimentais/cirurgia , Creatina Quinase/sangue , Fasciotomia , Humanos , Isquemia/etiologia , Isquemia/cirurgia , Isoenzimas , Perna (Membro)/cirurgia , Masculino , Músculo Esquelético/irrigação sanguínea , Rabdomiólise/etiologia , Rabdomiólise/cirurgia
15.
Am Surg ; 65(4): 338-40, 1999 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-10190359

RESUMO

Numerous diagnostic and therapeutic practices are used in an attempt to reduce the morbidity of colostomy closures. Our principal aim was to evaluate the role of preoperative studies, specifically barium enemas and endoscopic examinations, performed before colostomy closures. Additionally, we wished to identify other practices involved in the perioperative management of patients undergoing colostomy closure that influenced morbidity. The records of 100 consecutive patients who underwent elective colostomy closure at University of Louisville Hospital between January 1989 and July 1995 were reviewed. Wound infection was the most common complication (12%). Various bowel preparations were equivalent in efficacy and did not influence the complication rate. Intermittent wound irrigation with antibiotics for 3 days postoperatively, via subcutaneous drains, was associated with a low incidence of incision infection. Preoperative barium enema or sigmoidoscopy were often performed but rarely useful. Performing these examinations merely increased hospital cost without a corresponding decline in morbidity.


Assuntos
Colostomia , Complicações Pós-Operatórias , Adolescente , Adulto , Idoso , Antibioticoprofilaxia , Sulfato de Bário , Meios de Contraste , Endoscopia Gastrointestinal , Enema , Feminino , Humanos , Intestinos/diagnóstico por imagem , Masculino , Pessoa de Meia-Idade , Complicações Pós-Operatórias/prevenção & controle , Cuidados Pré-Operatórios , Radiografia , Reoperação , Infecção da Ferida Cirúrgica/prevenção & controle , Procedimentos Desnecessários
16.
J Mot Behav ; 19(1): 96-114, 1987 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-23944915

RESUMO

Previous work (Keele & Hawkins, 1982; Keele, Pokorny, Corcos, & Ivry, 1985) has suggested two general factors of coordination that differentiate people across a variety of motor movements, factors of timing and maximum rate of successive movements. This study provides comparable evidence for a third general factor of coordination, that of force control. Subjects who exhibit low variability in reproducing a target force with one effector, the finger, tend to show low variability with two other effectors, the foot and forearm. In addition, ability in force control cuts across different force ranges and across situations where force control is either the primary goal or the secondary goal. Force records obtained during a periodic tapping task show that, although force control is largely independent of timing, there are some interactions between the two factors. Force variation appears to distort timing a small amount in part because larger forces speed up implementation of movement, thereby shortening preceding intervals and lengthening following ones, and in part because force variation alters central-timing mechanisms.

17.
Folia Microbiol (Praha) ; 46(5): 379-84, 2001.
Artigo em Inglês | MEDLINE | ID: mdl-11899468

RESUMO

Biological properties of new copper(II) complexes of 2-methylthionicotinate (2-MeSNic) of composition Cu(2-MeSNic)2(MeNia)(2).4H2O (where MeNia is N-methyl-nicotinamide), Cu(2-MeSNic)2(Nia)(2).2H2O (where Nia is nicotinamide) and Cu(2-MeSNic)2L2 (where L is isonicotinamide (iNia) or ethyl nicotinate (EtNic)) are reported. Gram(-)-bacteria (Escherichia coli) are more resistant against Cu(II) complexes than Gram(+)-bacteria (Staphylococcus aureus)--significant antistaphylococcal activity was found with Cu(2-MeSNic)2(MeNia)(2).4H2O (IC50 1.3 mmol/L). Candida parapsilosis was most inhibited by Cu(2-MeSNic)2.H2O and Cu(2-MeSNic)2(MeNia)(2).4H2O (IC50 1.4 mmol/L and 1.5 mmol/L, respectively). Biosynthesis of nucleic acids influenced by Cu(2-MeSNic)2(Nia)(2).2H2O indicated by incorporation of 14C-adenine (IC50(Ade) 0.31 mmol/L) is more sensitive than biosynthesis of proteins indicated by incorporation of 14C-leucine (IC50(Leu) 9.94 mmol/L). Cu(II) complexes with expressed antimicrobial activity showed no mutagenic activity.


Assuntos
Anti-Infecciosos/farmacologia , Cobre/farmacologia , Compostos Organometálicos/farmacologia , Antibacterianos , Candida/efeitos dos fármacos , Relação Dose-Resposta a Droga , Enterobacteriaceae/efeitos dos fármacos , Ligantes , Testes de Sensibilidade Microbiana , Staphylococcus aureus/efeitos dos fármacos
18.
Folia Microbiol (Praha) ; 47(3): 225-9, 2002.
Artigo em Inglês | MEDLINE | ID: mdl-12094729

RESUMO

Antifungal activity of new copper(II) complexes of 2-methylthionicotinate (2-MeSNic) of the composition Cu(2-MeSNic)2(MeNia)(2).4H2O (where MeNia is N-methylnicotinamide), and Cu(2-MeSNic)2(Nia)(2).2H2O (where Nia is nicotinamide) and Cu(2-MeSNic)2L2 (where L is isonicotinamide, iNia, or ethyl nicotinate, EtNic) were tested on various strains of filamentous fungi by the macrodilution method. Most sensitive against copper(II) adducts with bioactive ligands were Rhizopus oryzae and Microsporum gypseum (IC50 1.5-2.3 mmol/L). The adducts with Nia, MeNia and EtNic at 5 mmol/L induced morphological changes in growing hyphae of Botrytis cinerea, mainly their intensive branching attached to release of cytoplasm with partial growth inhibition. Inhibition of sporulation (> 90%) of Alternaria alternata by Cu(2-MeSNic)2.H2O was observed as a change in the color of the colonies. The highest resistance was marked by B. cinerea and Fusarium moniliforme (average IC50 values 4.25 and 3.13 mmol/L, respectively). The presence of all bioactive ligands in copper(II) complexes caused an increase in the inhibition effect against model fungi (except significant inhibition activity of EtNic on R. oryzae).


Assuntos
Antifúngicos/farmacologia , Cobre/farmacologia , Compostos Organometálicos/farmacologia , Alternaria/efeitos dos fármacos , Antifúngicos/química , Cobre/química , Fusarium/efeitos dos fármacos , Testes de Sensibilidade Microbiana
19.
Cent Eur J Public Health ; 7(1): 3-7, 1999 02.
Artigo em Inglês | MEDLINE | ID: mdl-10084012

RESUMO

In 28 neonates born by spontaneous delivery to healthy mothers with a normal course of gestation venous umbilical blood was examined to assess the immunoreactive insulin concentration. Moreover, the birth weight of the neonates was recorded, the weight increment of the mother during pregnancy and the body mass index at the end of gestation. By means of a questionnaire and the computer programme Progana the dietary intake of the mothers at the end of pregnancy was assessed and compared with recommended allowances. The assembled data were evaluated statistically by assessment of the correlation coefficient. The investigation revealed that the birth weight of the neonates in the group does not correlate with the immunoreactive insulin concentration in umbilical venous blood. Although the dietary intake of the mothers at the end of pregnancy is not ideal (fat and cholesterol intake predominates over carbohydrate and protein intake), it does not correlate with the birth weight of the neonates nor with the immunoreactive insulin concentration in umbilical venous blood. From these results the conclusion is drawn that neonates with a low birth weight do not have a higher plasma insulin concentration after delivery and that the mother's diet at the end of pregnancy does not influence the birth weight and insulin level in neonates.


Assuntos
Peso ao Nascer , Dieta , Insulina/sangue , Adulto , Índice de Massa Corporal , Feminino , Humanos , Recém-Nascido , Masculino , Valor Preditivo dos Testes , Gravidez , Inquéritos e Questionários , Veias Umbilicais
20.
Ceska Gynekol ; 61(5): 297-9, 1996 Oct.
Artigo em Cs | MEDLINE | ID: mdl-9004976

RESUMO

The authors examined the concentration of erythrocyte zinc-protoporphyrin (ZPP) by a haematofluorometric method in 175 women during delivery and the levels in their children. They assessed basic haematological indicators, the number of red cells, their volume, number of reticulocytes, haemoglobin concentration, haematocrit and sideraemia. All were average values within the physiological range in both examined groups. Statistical evaluation revealed a significant difference between mean values of sideraemia in mothers and children and mean values of the erythrocyte ZPP in both groups. The authors found also a medium significant correlation between ZPP and the erythrocyte volume and the erythrocyte volume and sideraemia. The correlation of different indicators was more marked after classification of the examined women and neonates into subgroups by haemoglobin concentrations and ZPP. In the subgroup of mothers with Hb values lower than 115 g/l a positive correlation was found with the number of reticulocytes red cell volume and sideraemia. In the subgroup of anaemic women (Hb concentration lower than 105 g/l) a negative correlation with the foetal sideraemia was found.


Assuntos
Anemia Ferropriva/sangue , Eritrócitos/química , Complicações Hematológicas na Gravidez/sangue , Protoporfirinas/sangue , Adulto , Contagem de Eritrócitos , Volume de Eritrócitos , Feminino , Sangue Fetal/química , Humanos , Recém-Nascido , Trabalho de Parto/sangue , Gravidez
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