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lymphoepithelial cystic lesion related to adenocarcinoma in the mediastinum.the authors report here a case of lymphoepithelial cystic lesion (lecl) of unknown origin in the mediastinum, which is closely related to a signet-ring cell adenocarcinoma. a 73-year-old man presented with a mass as revealed on a chest x-ray. during surgical operation, a solid, well-circumscribed and encapsulated 9 x 9 x 8 cm tumor was isolated from the right anterior mediastinum. this tumor had neither undergone metastasis nor invaded into the surrounding tissue and lymph nodes. light microscop ...19892556020
approaches to the molecular epidemiology of rickettsioses.this review deals with the developments of molecular approaches to the investigation of rickettsial disease epidemiology. the data presented include changes in the incidence and geographic distribution of endemic rickettsioses. use of the dna restriction enzyme technique, in combination with dna probe analysis, for the molecular genetic differentiation of tick spotted fever--and typhus fever--group rickettsiae and correlation between with the analysis of polypeptide composition of the above grou ...19892558035
hormonal regulation of 3-hydroxy-3-methylglutaryl coenzyme a reductase mrna in the rat adrenal gland.we studied the effect of acth on 3-hydroxy-3-methylglutaryl coenzyme a (hmg-coa) reductase enzyme. reductase activity and reductase mass were enhanced by 22- and 6.2-fold respectively in one series of experiments, whereas in another the levels of reductase activity, reductase mass, and reductase mrna were increased 6.6-, 3.6- and 2.2-fold respectively, following daily administration of exogenous acth for 3 days. daily injection of 4-aminopyrazolopyrimidine (4-app) to rats for 3 days increased ci ...19892560519
the use of a liposome-encapsulated 5-fluoroorotate for glaucoma surgery: i. animal studies.we have considered the wound-healing and tissue-repair process as it applies to glaucoma filtration surgery. information derived from classical histologic studies of functioning and failed blebs has been considered in view of the new ideas based on modern cell biology concepts of the wound healing process. these evaluations provide a rationale for the use of adjunctive chemotherapy for glaucoma filtration surgery. a study is described using posterior-lip sclerectomies, an experimental monkey mod ...19892562527
routine coronary angiography for effort angina. 20082564916
chemical composition of phase i coxiella burnetii soluble antigen prepared by trichloroacetic acid extraction.optimal conditions of extraction (time and temperature) by trichloroacetic acid of soluble antigen from phase i coxiella burnetii (tcae), possessing protective properties and used as a chemovaccine against q fever in men, were studied. extracts prepared under various conditions were analysed for their polysaccharide, protein and phosphorus contents. forty-five min of extraction at 0 degrees c were sufficient to obtain a soluble antigen reacting in immunodiffusion with hyperimmune rabbit antiseru ...19892565677
effect of endogenous opioid peptides on trh release from rat stomach in vitro.the effect of endogenous opioid peptides (beta-endorphin, leucine-enkephalin, dynorphin 1-13 on the release of thyrotropin releasing hormone (trh) from the rat stomach in vitro was studied. the rat stomach was incubated in the medium 199 with 1.0 mg/ml of bacitracin (ph 7.4) (medium) and the amount of trh released into the medium was measured by radioimmunoassay. the release of trh from the rat stomach was inhibited significantly in a dose-related manner with the addition of endogenous opioid pe ...19892565806
requirement of leukocytic cell adhesion molecules (cd11a-c/cd18) in the enhanced nk lysis of ic3b-opsonized targets.treatment of raji or daudi cells with human serum under conditions which allow the alternative pathway of c activation results in their c3-opsonization and enhanced sensitivity to nk-mediated lysis. the effector lymphocytes have low buoyant density, carry cd16 and hnk1 markers as well as the cd11a-c/cd18 leukocytic cell adhesion molecules. one of these molecules, made up of cd11b-cd18 (alpha- and beta-chains), is also the receptor for ic3b. we studied the role of the cell adhesion molecules in t ...19892565929
comparative studies of the effects of rs-8359 and safrazine on monoamine oxidase in-vitro and in-vivo in mouse brain.the effect of rs-8359, pyrimidine on monoamine oxidase (mao) has been compared with a hydrazinic mao inhibitor, safrazine (beta-piperonylisopropylhydrazine hydrochloride,) which is a mao inhibitor used clinically. in-vitro radiochemical determination of mao activity showed that the ic50 of rs-8359 was 0.52 microm for the deamination of 5-hydroxytryptamine (5-ht) in the mouse brain mitochondrial preparation, while beta-phenylethylamine (pea) deamination was inhibited by only 20% at 100 microm of ...19892565961
molecular cloning of a chinese hamster mitochondrial protein related to the "chaperonin" family of bacterial and plant proteins.the complete cdna sequence of a mitochondrial protein from chinese hamster ovary cells, designated p1, which was originally identified as a microtubule-related protein (gupta, r.s., ho, t.k.w., moffat, m.r.k., and gupta, r. (1982) j. biol. chem. 257, 1071-1078), has been determined. the p1 cdna encodes a protein of 60,983 da including a 26-amino acid putative mitochondrial targeting sequence at its n-terminal end. the deduced amino acid sequence of chinese hamster p1 shows 97% identity to the hu ...19892568357
development of local morphological changes after intradermal inoculation of q-fever chemovaccine.development of morphological changes was studied in the site of intradermal inoculation of q-fever chemovaccine. the chemovaccine was obtained by trichloroacetic acid extraction from coxiella burnetii, strain nine mile, phase i cells. the effect of two vaccine doses (0.2 mg and 1.0 mg) was compared in two groups of guinea pigs (each consisting of 21 animals). after inoculation of 1.0 mg vaccine abscesses formed in the dermis and in subcutaneous tissue along with dystrophic changes of skeletal mu ...19892569813
comparison of protein and lipopolysaccharide patterns of several coxiella burnetii strains in phase i.electrophoresis in polyacrylamide gel gradients in the presence of sodium dodecyl sulphate revealed at least 18 identical protein bands in eight strains of coxiella burnetii. by staining with coomassie brilliant blue r-250 it was possible to visualize clearly at least 40 proteins. the protein pattern showed the greatest variability in the region from 27 to 18.5 kd. strains s and priscilla differed from the other strains also in proteins smaller than 18.5 kd. the lipopolysaccharide pattern obtain ...19892569814
q fever outbreak in birmingham, uk. 20082570248
red plaque formation of coxiella burnetii and reduction assay by monoclonal antibodies.a red plaque technique for c. burnetii which utilizes primary chicken embryo cells, is described. red plaques could be consistently detected as early as 6 days, usually 8 days post inoculation (p.i.), reflecting that c. burnetii proliferated within the phagolysosomes of host cells. incubation with phase ii monoclonal antibodies or inactivated immune sera containing phase i and phase ii antibodies or phase ii antibodies only, markedly reduced phase ii c. burnetii red plaques. on the other hand, r ...19892570515
q-fever endocarditis twenty-five years on. 20082570939
a novel ubiquitous protein 'chaperonin' supports the endosymbiotic origin of mitochondrion and plant chloroplast.the deduced amino acid sequences for a major mitochondrial protein (designated p1, related to the 'chaperonin' family of proteins) from human and chinese hamster cells show extensive similarity (greater than 60% identity observed over the entire length) with a related protein present in evolutionarily as divergent organisms as escherichia coli, coxiella burnetii, mycobacterium species, cyanobacteria as well as in yeast mitochondria and higher plant chloroplasts. of the different groups of bacter ...19892571331
chlamydial disease pathogenesis. the 57-kd chlamydial hypersensitivity antigen is a stress response protein.chlamydia trachomatis infection of humans is commonly a localized inflammation that can result in infertility, blindness, and perhaps arthritis. the pathogenic process(es) that cause these sequelae are thought to be immunological. a 57-kd protein that is common among chlamydia elicits ocular inflammation when introduced onto the conjunctivae of guinea pigs or nonhuman primates previously sensitized by chlamydial infection. this protein is thought to mediate the immunopathology that follows chlam ...19892571668
molecular probes for the detection of kluyveromyces marxianus chromosomal dna in electrophoretic karyotypes of intergeneric protoplast fusion products.random genomic dna fragments from kluyveromyces marxianus were cloned in order to identify chromosomal bands in pulsed field electrophoresis patterns of intergneric hybrid strains which were obtained by protoplast fusion. molecular hybridization data indicated that the k. marxianus parental strain might be triploid, and it showed strong chromosome length polymorphism. we analyzed the karyotype of two saccharomyces cerevisiae/k. marxianus hybrid strains (st. 1.st.46) with our dna probes and with ...19892573327
effects of long-term antihypertensive treatment with tertatolol on diastolic function in hypertensive patients with and without left ventricular hypertrophy.we assessed the effects of long-term antihypertensive treatment with 5 mg tertatolol, a noncardioselective beta-blocker, on left ventricular hypertrophy (lvh) and diastolic function. fifteen hypertensive patients were selected as good responders to previous treatment with tertatolol (supine blood pressure less than 140/90 mm hg). they were divided into 2 groups: group 1 with lvh (n = 6) and group 2 without lvh (n = 9). after a one month wash-out period, all patients received 5 mg tertatolol once ...20082573376
q-fever endocarditis. 19892574284
[ki-1 large cell lymphoma with secondary xanthomatous infiltration of the lesions by chemotherapy]. 20082575882
interaction between dermacentor reticulatus cells and coxiella burnetii in vivo.by electron microscopy the distribution of coxiella burnetii was followed in females of dermacentor reticulatus injected intracoelomally in a dose of about 10(3) eid50 per tick. the heaviest infestation with coxiellae was noticed in the cells of haemolymph, fat body, malpighian tubulus and tracheal complex. no rickettsiae were found in gene's organ. unexpected was the propagation of rickettsiae in muscle fibres. c. burnetii multiplied in all organs affected. heavy infection resulted at the marke ...19892576586
cell-mediated immune response to coxiella burnetii antigens in q fever convalescents and vaccinees.cellular immunity against phase i and ii coxiella burnetii antigens was evaluated by the lymphocyte blast transformation test in a) q fever convalescents; b) persons immunized with a chemovaccine against q fever; and c) control persons. the first two groups consisted of workers in a ricketsiology department. of the 9 convalescents, all (100%) were positive against phase i antigen and 4 (44.4%) against phase ii antigen. of the 22 vaccinees, 77.3% were positive against phase i antigen and all were ...19892576587
virus-like particles in dermacentor reticulatus ticks.virus-like particles were found in the brain and salivary glands of dermacentor reticulatus ticks double infected with coxiella burnetii and rickettsiella phytoseiuli. the particles were spherical (diameter of about 70 nm) and consisted of an electron-dense inner core and a dense external coat.19892576601
product-oriented research. 20082582399
[studies of dog sera using the microagglutination test for q-fever in greece].in serological investigations of dog sera from greece for q-fever 4.2% to 53.9% of samples were positive in the highly specific microagglutination test.19892583502
[pulmonary hypertension following rickettsia infection?].a latent or stable pulmonary hypertension was established in three patients with a q-fever-infection confirmed as occupational disease. according to sparse informations in the literature the development of a pulmonary hypertension in the course of this disease is taken into account. the investigation programme regarding q-fever-infections should be completed by measurement of pulmonary artery pressure.19892588692
[classification and surgical repair of congenital ear lobe anomalies].we encountered 21 cases of congenital ear lobe anomalies at our clinic during the past seven years. this report presents our system for classification of these cases and describes some typical cases. we divided ear lobe anomalies into four groups according to the type of lobe as follows; large, adhesive, defective and cleft ear lobe type. in the large lobe type, the ear lobe is characteristically large. for the adhesive lobe type, no angle is formed between the ear lobe and the face, i.e. the he ...20082593041
comparison of different computerized classification methods for predicting carcinogenicity from short-term test results.a major obstacle to the use of short-term test results for predicting carcinogenicity is the nonavailability of methods that generate unequivocal estimations of potential carcinogenicity, even in the case of contrasting test results. we compared different mathematical classification methods such as linear discriminant analysis, the k-nearest neighbor rule (knn), and a new ad hoc classification method called dynamic carcinogenicity assessment (dyca). the dyca was developed by us to explicitly ref ...20082593175
[effect of radiation on the fungal flora of the external ear canal].a mycological study of external ear canals was performed in 40 patients with head and neck cancer to observe the radiation effect on the fungal flora in external ear canals. the control group consisted of 30 non-cancer patients. the findings were: 1. more candida sp. and aspergillus sp. were noted in cancer patients than control group and c. albicans were also found, which didn't exist in normal persons. 2. there were opportunistic fungal flora, candida sp. and aspergillus sp., in at least one s ...19892593210
isolation of a coxiella burnetii strain that has low virulence for mice from a patient with acute q fever.coxiella burnetii was isolated from a patient with q fever. it could not be determined whether this was an imported case or an indigenous one. identification of the isolate was made by electron microscopic morphology and the indirect fluorescent antibody test with convalescent-phase serum from a q fever patient having a known titer of antibody to c. burnetii. the isolated strain, named tk-1, caused no symptoms in ddy and balb/c mice except when the mice were treated with cyclophosphamide.19892593878
[q-fever as a cause of myocarditis in childhood].q-fever occurs in the netherlands in childhood more often than used to be believed. we treated an 8-month-old infant with congestive myocarditis associated with a seroconversion against coxiella burnetii. the infection was probably caused by the father, who a few weeks earlier had visited his native surinam, where he frequently was surrounded by domestic animals and drank raw cow's milk. after 2.5 years the child's general and cardial conditions are good although digoxin therapy is still necessa ...19892594125
q fever in animal laboratory workers: an outbreak and its investigation. 19892596732
the presence of q-fever antibodies in teheran's pigeons (columba domestica).teheran's wild city pigeons were tested for q-fever antibodies. 12 out of 152 sera showed a positive reaction.19892599391
monitoring patient outcomes in an oncology unit. 20082600158
infection prevention by selective decontamination in intensive care. 20082600283
the effects of beta blockade on dopamine and dobutamine induced hypokalaemia in dogs.the effect of beta 1 and beta 2 blockade on dopamine and dobutamine induced hypokalaemia was investigated in dogs. arterial plasma potassium was continuously monitored using a potassium-sensitive electrode sited in the abdominal aorta. dopamine and dobutamine were infused at 15 micrograms kg-1 min-1 into animals pre-treated with atenolol (0.5 mg kg-1) or ici 118551 (0.5 mg kg-1) and the potassium changes compared to those seen in control animals. the inotrope infusions caused a small and transie ...19892600289
determining the extent of coarticulation: effects of experimental design.the purpose of this letter is to explore some reasons for what appear to be conflicting reports regarding the nature and extent of anticipatory coarticulation, in general, and anticipatory lip rounding, in particular. analyses of labial electromyographic and kinematic data using a minimal-pair paradigm allowed for the differentiation of consonantal and vocalic effects, supporting a frame versus a feature-spreading model of coarticulation. it is believed that the apparent conflicts of previous st ...20082600314
allergic and immunologic disorders. 20082600341
aerobiology of pollen and fungal allergens. 20082600351
influenza b, q fever, and the consequences of febrile illness occurring during jungle warfare training: a clinical and serological study.seventy-one royal marines undergoing jungle warfare training were studied clinically and serologically to determine the incidence and consequences of febrile illness. during acclimatization and the early part of the deployment the incidence of illness having an impact on training was low; during the latter part an outbreak of influenza b occurred, with 25 cases diagnosed clinically. only 12 of these were confirmed serologically, probably because the outbreak was still in progress when the second ...19892600890
[other methods of delivery]. 20082603102
seroepizootology of q fever in bulgaria during the last five years.the work presents results of investigations on q fever seroepizootology in bulgaria during the last five years. these data are compared with the preceding period from 1950 to 1983. the basic method for investigation is complement fixation test. also used are immunofluorescence, agglutination reaction, cultivation and direct electron microscopy. in general 15,814 samples were tested. q fever positivity was foundin 10.08% of cattle, 20.44% of sheep, 10.17% of goats, 59.25% of dogs, 26.66% of magpi ...19892606169
experimental q fever in sheep.the aim of the present investigation is the complex study of experimental infection in pregnant ewes by means of clinical, serological, biological, histological and electron microscopy methods. four ewes, pregnant from the 2nd to 5th month, were infected by intravenous (in one case by intraperitoneal) routes with a c. burnetii strain at 10(6) id 50/ml. the clinical illness in all of the animals was characterized by fever and two-phase temperature reaction on the 5th and 12th days. the clinical s ...19892606170
antibiotic susceptibility of rickettsia and treatment of rickettsioses.the author describes the in vitro data for antibiotic susceptibility of rickettsia and coxiella burnetti. tetracyclines are still the first antibiotic choice in spotted fevers, typhus and q fever. in spotted fever a shortened treatment is suggested and the place of macrolide antibiotics, such as josamycin, in treating children may be evaluated. in q fever, according to the new biological data, an association of tetracyclines and rifampin or quinolones is suggested.19892606171
clinical aspects and prevention of q fever in animals.in recent years, in the federal republic of germany an increase in the prevalence of coxiella burnetii infections in cattle has been well documented and its association with infertility problems in this species has been postulated by a number of authors. investigations on this problem have been hampered by the fact that another intracellular agent, chlamydia psittaci, which may also cause infertility, is also highly prevalent in the cattle population. vaccination trials with a commercial egg-pro ...19892606173
leakage in vitro with irm, high copper amalgam, and eba cement as retrofilling materials.an in vitro dye leakage study was performed to compare the sealing ability of high copper amalgam with copalite, irm, and eba cement when used as retrofilling materials. fifty-one extracted anterior teeth were instrumented and then obturated with gutta-percha. the apical 3 mm of the roots were resected and 2-mm deep apical preparations were made. the roots were then randomly placed into three groups and retrofilled with one of the experimental materials. after 72 h in india ink, the teeth were c ...20082607285
effects of constraint on the oscillatory pattern of endosonic files.when operated in air, the transverse oscillation of the endosonic file exhibits a series of nodes and antinodes along its length with the greatest displacement amplitude occurring at the unconstrained tip. endosonic files of varying design, length, and thickness exhibit differences in their oscillation. preliminary work has revealed that the endosonic file is susceptible to constraint when working within the root canal and a model system was designed to investigate this problem. the constraining ...20082607288
[coxiella burnetii pneumonia and acute respiratory insufficiency]. 19892607829
[pericarditis caused by q fever and the echocardiogram]. 19892607840
extensive aortic valve ring abscess formation: a rare complication of q fever endocarditis.we report the successful management and 2 year follow up of a young patient with q fever endocarditis on a congenitally bicuspid aortic valve complicated by extensive abscess formation in the aortic valve ring and interventricular septum. aortic root abscess formation complicating q fever endocarditis has been reported in only one previous patient. serological tests may thus be indicated in patients with aortic abscesses. despite extensive aortic and intramyocardial abscess formation it proved p ...19892608579
immunoregulation in epidermis. ii. immunostimulatory and immunoinhibitory products of keratinocytes. 19892609859
surgical treatment of the iliotibial band friction syndrome.a selected group of 23 patients underwent surgery for iliotibial band friction syndrome. among the patients presenting with this exertional pain syndrome were runners, football players, and cyclists. diagnosis was clinical since radiographs were negative and an ultrasound examination was positive in only one case, showing an aberrant picture around the lateral femoral epicondyle. although conservative treatment is effective in most cases, an alternative is needed for patients with complaints tha ...20082610280
developing theories of the mind: children's and adults' concepts of mental activities.8-year-olds', 10-year-olds', and adults' concepts of mental activities involved in acts of knowing were examined in an attempt to gain insight into developmental changes in underlying theories of mind. subjects rated the similarity of how the mind is used in a variety of common activities, each of which primarily involved either memory, comprehension, attention, or inference. analyses of conceptual structure revealed 2 developmental changes. between 8 and 10 years of age, children came to see th ...20082612241
developing theories of the mind: children's and adults' concepts of mental activities.8-year-olds', 10-year-olds', and adults' concepts of mental activities involved in acts of knowing were examined in an attempt to gain insight into developmental changes in underlying theories of mind. subjects rated the similarity of how the mind is used in a variety of common activities, each of which primarily involved either memory, comprehension, attention, or inference. analyses of conceptual structure revealed 2 developmental changes. between 8 and 10 years of age, children came to see th ...20082612241
[post-traumatic hemarthrosis of the knee].a clinical survey of 130 patients suffering from acute traumatic hemarthrosis of the knee shows that hemarthrosis is a significant symptom of knee injury. the evaluation of stability under anesthesia was misleading in 45% of the cases. arthroscopy allows a more accurate diagnosis of the injury.20082612266
[post-traumatic hemarthrosis of the knee].a clinical survey of 130 patients suffering from acute traumatic hemarthrosis of the knee shows that hemarthrosis is a significant symptom of knee injury. the evaluation of stability under anesthesia was misleading in 45% of the cases. arthroscopy allows a more accurate diagnosis of the injury.20082612266
[uncommon arterial and venous reconstruction in liver transplantation].the aim of this work was to define the best technical options of reconstruction that we can proposed in front of an anatomical or parietal anomalies of venous or arterial system in hepatic transplantation. through a retrospective study of 10 reconstructions performed between 1978 and 1989, we observed 5 cases of right hepatic artery from superior mesenteric artery of the donor. the two basic methods of reconstruction were either the "fold over" technic of gordon or the realization of an end to e ...20092612279
temperature-dependent birefringence patterns in xenopus rod outer segments.results reported here show that the birefringence of disk membranes in xenopus rod photoreceptors depends upon the temperature at which the disks were assembled. portions of the outer segments produced by the assembly of new disks while frogs are exposed to constant darkness and an ambient temperature of 25 degrees c have a higher birefringence than portions assembled at 18 degrees c. the intensity of birefringence reflects molecular-level structure and macromolecular-level organization of the d ...20082612584
q fever meningoencephalitis associated with bilateral abducens nerve paralysis, bilateral optic neuritis and abnormal cerebrospinal fluid findings.q fever is an zoonosis caused by coxiella burnetti, the clinical features of which are often nonspecific and self-limited. involvement of the central nervous system is rare and is usually seen as a complication of endocarditis caused by this rickettsial organism in the chronic disease. specific neurological manifestations in the course of the acute illness aseptic meningitis, encephalitis, toxic confusional states, extrapyramidal signs, dementia and behavioral disturbances. we describe a patient ...19892613330
[clinical study of osteoporosis]. 20082614196
[subungual malignant melanoma--30 year review of cases].twenty-five patients with subungual malignant melanoma confirmed by pathology from 1958 to 1987 were reported. there were 19 males and 6 females. 76% of the lesions occurred on the finger and 24% on the foot. the most common site was the thumb or great toe. 16/25 of the patients had history of subungual pigmented streaks. as trauma at the lesion site might initiate subungual melanoma (28%), doctors should pay close attention to the subungual black pigmented streaks or a mass below the nail with ...20092620637
plasma catecholamines in rainbow trout (salmo gairdneri) during hypoxia.plasma catecholamines (cas) were assayed radioenzymatically in normoxic and variably hypoxic rainbow trout (salmo gairdneri). results were grouped according to four levels of progressively deeper hypoxemia. only in animals where pao2 fell below 6.7 kpa, were both adrenaline (a) and noradrenaline (na), slightly, but significantly, increased. in contrast, substantial increases of plasma cas occurred when pao2 was reduced below 3.99 kpa (increment factor: a = 3.8, na = 3.4). comparisons between dos ...20082620711
plasma catecholamines in rainbow trout (salmo gairdneri) during hypoxia.plasma catecholamines (cas) were assayed radioenzymatically in normoxic and variably hypoxic rainbow trout (salmo gairdneri). results were grouped according to four levels of progressively deeper hypoxemia. only in animals where pao2 fell below 6.7 kpa, were both adrenaline (a) and noradrenaline (na), slightly, but significantly, increased. in contrast, substantial increases of plasma cas occurred when pao2 was reduced below 3.99 kpa (increment factor: a = 3.8, na = 3.4). comparisons between dos ...20082620711
enterocyte ultrastructure and uptake of immunoglobulins in the small intestine of the neonatal lamb.although the small intestine of the sheep is relatively mature at birth, there are still vacuolated enterocytes present for at least 2 days in distal regions. in the distal regions, vacuolated cells possess a range of vesicle morphology which might be indicative of at least 2 separate routes for enterocyte handling of proteins taken up from the lumen. the localisation of immunoreactive immunoglobulins within the enterocytes, presumably of colostral or milk origin, in both proximal (non-vacuolate ...19892621130
tropical pyomyositis. 20092621349
enhancement of ovine lymphocyte responses: a comparison of selenium and vitamin e supplementation.lymphocytes of lambs on a low selenium/vitamin e diet were isolated from peripheral blood, and mitogenic responses to phytohaemagglutinin (pha) tested in the presence of different doses of sodium selenite and emulsified vitamin e added in vitro. an enhancing effect of selenium was observed at doses of 1 ng/ml or less, and reached a plateau at about 10 ng/ml. toxic effects were evident beyond 1 micrograms/ml. the stimulatory potential of selenium among lambs was inversely related to their ability ...19892629194
enhancement of ovine lymphocyte responses: a comparison of selenium and vitamin e supplementation.lymphocytes of lambs on a low selenium/vitamin e diet were isolated from peripheral blood, and mitogenic responses to phytohaemagglutinin (pha) tested in the presence of different doses of sodium selenite and emulsified vitamin e added in vitro. an enhancing effect of selenium was observed at doses of 1 ng/ml or less, and reached a plateau at about 10 ng/ml. toxic effects were evident beyond 1 micrograms/ml. the stimulatory potential of selenium among lambs was inversely related to their ability ...19892629194
[papers presented at the 17th conference of the commission on cardiology of the purkinje physiology society. krpácov, 26-28 october 1988]. 20082630046
thrombosis of the carotid artery following blunt trauma. 20092631311
regulating the 3'-5' activity of exonuclease iii by varying the sodium chloride concentration. 20012631794
evaluation of mitochondrial function by measuring the heat production in state 3 and state 4 respiration.using a microcalorimetric method, we have measured the heat production in states 3 and 4 respiration of a mitochondrial preparation from rat heart ventricle. adenosine triphosphate production in state 3 respiration was also determined for the same preparation after heat production was measured. in tris-buffered solution with pyruvate and malate used as substrates, the total heat production in states 3 and 4 respiration for a 10-min reaction period were about 709 and 207 mj/mg of mitochondrial pr ...19892632050
evaluation of mitochondrial function by measuring the heat production in state 3 and state 4 respiration.using a microcalorimetric method, we have measured the heat production in states 3 and 4 respiration of a mitochondrial preparation from rat heart ventricle. adenosine triphosphate production in state 3 respiration was also determined for the same preparation after heat production was measured. in tris-buffered solution with pyruvate and malate used as substrates, the total heat production in states 3 and 4 respiration for a 10-min reaction period were about 709 and 207 mj/mg of mitochondrial pr ...19892632050
the secretory immune system.several features distinguish mucosal from systemic immunity, depending on the anatomical and functional characteristics of the organs involved. secretory iga immunoglobulins are the main effectors of the mucosal immune system and their protective aspects are well documented. serum iga have received less attention but are equally important, since they control and remove in a non-phlogistic way antigens crossing the mucosal barriers.20082634626
anti-inflammatory activity of teucrium polium.teucrium polium is widely used by the folk-medicine practitioners in saudi arabia for the treatment of inflammations, rheumatism, diabetes and ulcers. scientific reports are lacking to confirm these activities. the present study reports the effect of ethanolic extract of t. polium on carrageenan-induced acute inflammation, cotton-pellet granuloma and some of the biochemical parameters. the ethanolic extract of teucrium polium at a dose of 500 mg/kg body weight produced significant inhibition of ...19892634627
[measurement of orthodontic appliance force using prototype sensors].in introductory remarks the most important biomechanical principles, which are relevant for the research, and conditions which must be satisfied presented in intraoral measuring of orthodontic forces were pointed out. first the aim of the research was defined, and then the investigation of mechanical properties of acrylics as a material for orthodontic appliances were carried out. the type of strain gauges, bonds and measuring system configurations, as well as measuring amplifiers and recording ...20082635572
inactivation of coxiella burnetii by gamma irradiation.the gamma radiation inactivation kinetics for coxiella burnetii at -79 degrees c were exponential. the radiation dose needed to reduce the number of infective c. burnetii by 90% varied from 0.64 to 1.2 kgy depending on the phase of the micro-organism, purity of the culture and composition of suspending menstruum. the viability of preparations containing 10(11) c. burnetii ml-1 was completely abolished by 10 kgy without diminishing antigenicity or ability to elicit a protective immune response in ...19892636260
[q fever in a 5-year-old girl].the first case of q fever in poland in a 5-year girl is presented. a girl is inhabitant of the lublin region where this disease is of endemic character. q fever was diagnosed on the base of the clinical examinations and serological tests. the course of the disease was acute. doxycycline and lincomycin were given. a short time lapse between the treatment and eradication of coxiella burnetii antigen indicates rather spontaneous recovery.19892637441
[risks and benefits of polymeric inlays].class i inlays were produced according to the direct method using six white light-cured composite, one inlay material and one veneer acrylic. they were subjected to extraoral heat treatment at 125 degrees c for 150 s. in addition, heat-cured inlays were produced according to the indirect method. in all cases heat treatment resulted in a considerable increase in transverse strength and modulus of elasticity as well as a material specific decrease in the specimen volume between 0.15% and 1.05%, an ...20082637804
[histochemical detection of enzymes in the spinning glands of spiders].the spider's spinning apparatus equipped with numerous glands of several types appears to be a suitable model for studying tissues which produce large amounts of fibrillar proteins. heterogeneous glandular system is of special benefit for study of the function of different enzymes taking part both in the synthesis and the degradation of mentioned proteins. it is evident that the activity of the enzyme is dependent not only on the physiologic condition or a certain phase of spider's life cycle, b ...20092640359
effects of systematic influences and intramammary infection on differential and total somatic cell counts in quarter milk samples from dairy cows.effects of bacteriological status, stage of lactation, parity and season of sampling on differential and total somatic cell counts were estimated in quarter milk samples taken from 39 dairy cows. log somatic cell count was affected by the bacteriological status of the quarter, as well as by the bacteriological status of adjacent quarters. differential cell counts were affected by presence or absence of pathogens in the quarters themselves, but not by the bacteriological status of the adjacent qu ...19892640784
development of consultation-liaison psychiatry in the netherlands. its social psychiatric heritage.dutch consultation-liaison psychiatry (c-l psychiatry) has followed a developmental line separate from the american system. first, c-l psychiatry in the netherlands has been less influenced by psychosomatic medicine than by social psychiatry. second, the presence of psychiatric units in general hospitals that appear to be correlated with the growth of c-l psychiatry in the united states occurred later in the netherlands. third, little government support for clinical care, research, and especiall ...20082643541
development of consultation-liaison psychiatry in the netherlands. its social psychiatric heritage.dutch consultation-liaison psychiatry (c-l psychiatry) has followed a developmental line separate from the american system. first, c-l psychiatry in the netherlands has been less influenced by psychosomatic medicine than by social psychiatry. second, the presence of psychiatric units in general hospitals that appear to be correlated with the growth of c-l psychiatry in the united states occurred later in the netherlands. third, little government support for clinical care, research, and especiall ...20082643541
association of microneme antigens of plasmodium brasilianum merozoites with knobs and other parasite-induced structures in host erythrocytes.the localization of plasmodium brasilianum antigens, common to merozoite micronemes and parasite-induced structures in the host erythrocyte, was determined by means of immunogold electron microscopy and monoclonal antibodies directed against blood stages of this parasite. all monoclonal antibodies reacted with micronemes. in addition, some reacted with either knob protrusions or caveolae of the host erythrocyte membrane; one reacted with a parasite-derived antigen present in the erythrocyte cyto ...19892643577
association of microneme antigens of plasmodium brasilianum merozoites with knobs and other parasite-induced structures in host erythrocytes.the localization of plasmodium brasilianum antigens, common to merozoite micronemes and parasite-induced structures in the host erythrocyte, was determined by means of immunogold electron microscopy and monoclonal antibodies directed against blood stages of this parasite. all monoclonal antibodies reacted with micronemes. in addition, some reacted with either knob protrusions or caveolae of the host erythrocyte membrane; one reacted with a parasite-derived antigen present in the erythrocyte cyto ...19892643577
diagnostic significance of precordial st-segment depression. 20092643846
q fever: an emerging public health concern in canada.q fever in humans and coxiellosis in livestock are on the increase in canada. the progressive spread of coxiella burnetii takes place in the animal reservoirs of the rickettsia, mainly domestic ruminants. human q fever is a reverberation of the coxiellosis situation on our farms. increasing animal concentration resulting from the industrialization of agriculture and oversight of the infection in livestock permitted the extension of the zoonotic problem on the farms. initiative for control of cox ...19892644004
diagnosis of disseminated intravascular coagulation. role of d-dimer.detection of the cross-linked fibrin degradation fragment, d-dimer, in patients at risk for disseminated intravascular coagulation (dic) is strong evidence for the diagnosis. d-dimer confirms that both thrombin generation and plasmin generation have occurred. patients at risk for dic (58) and normal controls (7) were studied. thirty-three patients had dic--with fragment d-dimer identified in their serum by immunoblotting. latex agglutination measurements of fibrin(ogen) degradation products (fdp ...20082646905
diagnosis of disseminated intravascular coagulation. role of d-dimer.detection of the cross-linked fibrin degradation fragment, d-dimer, in patients at risk for disseminated intravascular coagulation (dic) is strong evidence for the diagnosis. d-dimer confirms that both thrombin generation and plasmin generation have occurred. patients at risk for dic (58) and normal controls (7) were studied. thirty-three patients had dic--with fragment d-dimer identified in their serum by immunoblotting. latex agglutination measurements of fibrin(ogen) degradation products (fdp ...20082646905
acceptance of placebo-control trial design by progressive multiple sclerosis patients. the canadian cooperative multiple sclerosis study group. 20082648191
the role of rt1.a major histocompatibility antigens in prolonging the survival of hepatic allografts in the rat. 19892650272
hypospadias.hypospadias is a common congenital problem in boys. neonatal recognition is essential, and circumcision must be avoided. although there is no increase in risk of other genitourinary anomalies, hypospadias, when associated with cryptorchidism, warrants further evaluation to exclude an intersex disorder. surgical reconstruction ideally should be performed when the child is between six and nine months of age.20082650502
laboratory diagnosis of human chlamydial infections.chlamydia trachomatis is a human pathogen that causes ocular disease (trachoma and inclusion conjunctivitis), genital disease (cervicitis, urethritis, salpingitis, and lymphogranuloma venereum), and respiratory disease (infant pneumonitis). respiratory chlamydioses also occur with infection by avian strains of c. psittaci or infection by the newly described twar agent. diagnosis of most acute c. trachomatis infections relies on detection of the infecting agent by cell culture, fluorescent antibo ...19892650858
[treatment of cancer of the bladder]. 20092653234
hepatic and biliary tract abnormalities in patients with aids. sonographic-pathologic correlation.a retrospective evaluation of hepatobiliary sonograms in 22 patients with aids was performed and the sonographic abnormalities were correlated with pathologic findings in 10 patients. hepatic parenchymal abnormalities noted on ultrasound include a hyperechoic parenchymal echo pattern in 45.5%, hepatomegaly in 41%, and focal masses in 9% of patients. etiologies for the diffuse hyperechoic pattern based on pathologic correlation in eight cases were hepatic steatosis and granulomatous hepatitis. bi ...19892654415
[pericarditis caused by q fever]. 20092654510
the mouse bone marrow micronucleus assay can be used to distinguish aneugens from clastogens.the occurrence of aneuploidy can be measured in several assays. however, none of them have been sufficiently validated. the bone marrow micronucleus test may be considered as a method for aneuploidy detection. in this work, micronuclei were induced by two aneugens, vincristine sulfate (0.1 mg/kg) and nocodazole (80 mg/kg), and two clastogens ethylmethanesulfonate (ems) (300 mg/kg) and cyclophosphamide (60 mg/kg). three criteria have been examined in order to distinguish micronuclei induced by an ...19892654553
[a case of immediate fertility restoration following childbirth].we report an unwanted pregnancy following immediately after fulltime childbirth. we could not find previous reports of this nature in international literature. women who give bottle-feeding are even more liable to early return of ovulatory cycles than women who give breastfeeding. if a puerpera has vaginal bleeding (not lochia), there is an increased risk of ovulation as well as of endometritis. it is no longer acceptable to take impossibility to conceive immediately after delivery for granted: ...20092654662
cardiac abnormalities and nonimmune hydrops fetalis: a coincidental, not causal, relationship.few conditions associated with nonimmune hydrops fetalis have had a demonstrable causal relationship. congenital heart disease is often said to be a cause of nonimmune hydrops fetalis and antenatal closure of the foramen ovale is the cardiac abnormality most frequently reported in association with hydrops. in order to examine the role of congenital heart disease in hydrops, and, in particular, that of antenatal closure of the foramen ovale, we reviewed all autopsy cases with hydrops fetalis over ...20092654901
prostaglandin i2 synthase in the lymphatic endothelium of rat liver as revealed by preembedding immunoelectron microscopy.localization of prostaglandin i2 synthase-like immunoreactivity (pgi2si) in the lymphatic endothelium of rat liver was investigated by means of preembedding immunoelectron microscopy. vesicular and multivesicular bodies with pgi2si were closely apposed to golgi complexes of the endothelial cells. membrane-bounded pgi2si structures including vesicular and dense bodies were also present beneath the endothelial plasmalemma on both luminal and abluminal sides. other organelles within the endothelial ...19892657228
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