Publications
| Title | Abstract | Year Filter | PMID(sorted ascending) Filter |
|---|
| [silvane reservoirs and vectors of trypanosoma cruzi. 58. natural infection of the rat, akodon lasiotis (lung, 1841) by t. cruzi]. | 1975 | 810875 | |
| [trypanocidal activity of some ellipticine derivatives against trypanosoma cruzi cultured in vitro]. | some ellipticine derivatives showing antitumoral behaviour exhibit a trypanocide activity against in vitro cultures of t. cruzi. 9-methoxy-6-methyl-ellipticine is the most active compound of this series: its lethal effect is comparable with that of ethidium bromide. | 1975 | 811391 |
| enhancement of resistance and suppression of immunization against experimental trypanosoma cruzi infection by corynebacterium parvum. | intravenous but not intraperitoneal injection of killed corynebacterium parvum either before or after intraperitoneal infection with the highly reticulotropic tulahuén strain of trypanosoma cruzi produced enhanced resistance against the infection in mice. in contrast, c. parvum had no effect when the infection was caused with the predominately myotropic y strain of t. cruzi. c. parvum given intravenously before immunization with killed culture forms of the y strain parasite consistently diminish ... | 1975 | 811568 |
| [resistance to experimental chagas' disease]. | 2004 | 811959 | |
| [letter: follow-up of patients with chagas' disease outside the endemic area]. | 2004 | 811962 | |
| chemotherapy of trypanosoma cruzi infections. | 1975 | 812348 | |
| immunologic and immunopathologic studies in congenital chagas' disease. | 1975 | 812625 | |
| depletion of heart norepinephrine in experimental acute myocarditis caused by trypanosoma cruzi. | the norepinephrine content of the heart was reduced to undetectable values in rats inoculated with trypanosoma cruzi. this fact indicates a massive involvement of the cardiac postganglionic sympathetic fibres in acute chagas disease. | 1975 | 812724 |
| enhanced mononuclear phagocytic activity during trypanosoma cruzi infection in mice. | it has been shown that trypanosoma cruzi-infected mice develop a nonspecific resistance to challenge with an unrelated microorganism, namely, listeria monocytogenes. this increased resistance to listeria was observed on the 4th day of trypanosoma infection and persisted for at least 25 days. it was associated with an increased mononuclear phagocytic activity, as revealed by carbon clearance experiments. the possibility that macrophages of the infected host become activated by a process which app ... | 1976 | 812831 |
| congenital chagas disease. | two different histological types of congenital chagas disease are defined. in one type, parasites were seen within the skeletal and cardiac fibers, and in the other, they are found mostly within the cells of the reticuloendothelial system. the latter was often associated with parasitized giant-cells with a single, lobulated, hyperchromatic nucleus. in 24 placentas, the most consistent findings were villous and intervillous inflammatory infiltrates. amastigotes of trypanosoma cruzi were found mos ... | 1976 | 813519 |
| educational approach in the control of chagas' disease. | the serious threat posed by chagas' disease demands an urgent and realistic approach to controlling the infection in multitudes of affected latin american communities. education is undoubtedly the best current means available for combating widespread public ignorance, both of the threat posed by reduviid bugs and of the association between the bugs and the disease. especially high priority should be given to informing schoolchildren about the disease and to providing adults with an appropriate e ... | 1975 | 813798 |
| [reservoirs and wild vectors of trypanosoma cruzi. lxi. behavioral aspects of various samples of t. cruzi in culture media]. | 1975 | 814587 | |
| [importance of synantropic animals in the control of endemic chagas' disease]. | 1975 | 814610 | |
| a comparison of rhodnius prolixus, triatoma infestans and panstrongylus megistus in the xenodiagnosis of a chronic trypanosoma (schizotrypanum) cruzi infection in a rhesus monkey (macaca mullatta). | fifth instar rhodnius prolixus, triatoma infestans and panstrongylus megistus were fed on a rhesus monkey (macaca mullatta) with a chronic infection of peru strain trypanosoma cruzi and examined 30 days later for the presence of trypanosomes in the rectum. no correlation could be demonstrated between either blood meal size or sex and the subsequent development of a rectal infection with t. cruzi. as t. infestans and p. megistus were more highly infected than r. prolixus in terms of both percenta ... | 1975 | 814658 |
| proceedings: preliminary observations on countercurrent immuno-electrophoresis of trypanosoma cruzi and leishmania. | 1975 | 814659 | |
| abnormal heart rate responses during exercise in patients with chagas' disease. | normal subjects and cardiac chagasic patients without previous history of congestive failure or actual evidences of cardiac decompensation were exercised on a treadmill or a bicycle ergometer. patients with less than the expected increase in heart rate during exercise were found to exhibit also an abnormal heart rate response to pharmacologic blockade and acute alterations in systemic vascular resistance. these results are in agreement with previous observations showing neuronal degeneration and ... | 1975 | 815000 |
| comparison of the complement fixation test and counterelectrophoresis test for the detection of antibodies in chagas disease. | sera from 452 patients and blood donors were tested for antibodies to tryp-anosoma cruzi. the complement fixation test and a counterelectrophoresis test were used. the results showed that both tests agreed in 92% of the sera. however, the counterelectrophoresis test was not as sensitive as the complement fixation test. | 1976 | 815268 |
| protective effects of specific antibodies in trypanosoma cruzi infections. | the action of immune sera from animals with chronic chagas disease on trypanosoma cruzi bloodstream forms (y and cl strains) was investigated. y strain trypomastigotes were agglutinated by anti-cl or anti-y immune sera and their infectivity was decreased when inoculated into normal mice. cl strain trypomastigotes, however, remained apparently unchanged, with neither agglutination nor decline of infectivity being observed after incubation with both immune sera. sera from three patients with chron ... | 1976 | 815433 |
| experimental chagas' disease: studies on the stability of a protective antigen. | 1976 | 815532 | |
| experimental chagas' disease: protective activity in relation with subcellular fractions of the parasite. | 1976 | 815533 | |
| cross-reactivity of lytic antibodies against blood forms of trypanosoma cruzi. | 1976 | 815534 | |
| chagas' achalasia treated by a jejunal interposed segment. | resection of the achalasic area and replacement by a segment of jejunal loop, associated with vagotomy and pyloroplasty, has been performed in 21 patients. the majority of these patients had chagas' disease, with a dilated esophagus wider than 7 cm. this surgical procedure offered symptomatic relief in 20 of our 21 cases. one patient died, but the death was not necessarily related to the operation. although disphagia and regurgitation did not disappear entirely in all cases the decrease in sever ... | 2009 | 815968 |
| [contribution to the knowledge on endemic casses of chagas' disease in the state of espirto santo]. | 2006 | 815981 | |
| [reaction of the trypanosoma cruzi strain to the experimental therapeutical response to bay 2502 (results of long term treatment)]. | 1975 | 815983 | |
| heart block in chagas' disease. | 1976 | 816337 | |
| an immunocytotoxic assay for trypanosoma cruzi. | 1976 | 816747 | |
| novel heterocyclic nitrofurfural hydrazones. in vivo antirypanosomal activity. | hydrazine derivatives of several pyrazolo[1,5-alpha]pyrimidines (a), pyrazolo[1,5-alpha]-1,3,5-triazines (b), s-triazolo[1,5-alpha]pyrimidines (c), and imidazo[1,2-alpha]pyrimidines (d) were synthesized and condensed with 5-nitrofurfural in order to obtain the corresponding nitrofurfural hydrazones of each heterocycle (1d-14d). each compound was screened for in vitro activity against trypanosoma cruzi. the compounds were then tested in vivo against experimental infections of t. cruzi in laborato ... | 1976 | 817023 |
| [activity of lipoprotein lipase in vivo in the chronic form of chagas' disease]. | 2006 | 817382 | |
| mechanisms of resistance against experimental trypanosoma cruzi infection: the importance of antibodies and antibody-forming capacity in the biozzi high and low responder mice. | the role of antibodies and the host's antibody-forming capacity in resistance to trypanosoma cruzi infection has been investigated in the biozzi high and low responder lines of mice. ab/l animals with low antibody-forming capacity were found to be more susceptible to i.p. infection with trypomastigotes than high responders (ab/h), whereas non-selected swiss albino mice showed an intermediate level of susceptibility. the correlation between antibody-forming potentiality and susceptibility was con ... | 1976 | 818311 |
| volvulus of the sigmoid colon in brazil: a report of 230 cases. | etiologic and physiopathologic aspects of volvulus of the sigmoid colon in brazil are presented. it is believed that sigmoidal volvulus in brazil is a frequent complication of megacolon caused by chagas' disease, differing in some characteristics from volvulus found in other countries. a review of 230 cases treated between 1938 and 1974 in the surgical department of hospital das clinicas, university of sao paulo school of medicine, is presented. the successive variations used to treat this disea ... | 2004 | 819236 |
| the use of 51cr-labelled trypanosoma cruzi in agglutination titrations. | 1976 | 819384 | |
| [arrhythmia and cardiac insufficiency in chagas' disease]. | 2007 | 819756 | |
| inheritance of susceptibility of trypanosoma cruzi infection in rhodnius prolixus. | 1976 | 819845 | |
| [histopathological changes produced in mice by mexican strains of trypanosoma cruzi]. | 1976 | 819978 | |
| [wild reservoirs and vectors of cruzi. lx. attempts to cross rhodnius prolixus stal, 1859 and rhodnius neglectus lent, 1954 (hemiptera, reduviidae)]. | 1976 | 819981 | |
| trypanosome infections in the marmoset (saguinus geoffroyi) from the panama canal zone. | from august 1973 through may 1974 a total of 148 marmosets (saguinus geoffroyi) were examined for blood parasites. parasites were detected in 93.2% of the monkeys. direct examination of blood revealed 82.4% infected with trypanosomes; trypanosoma cruzi was seen in 1.3% of the animals examined t. minasense in 52.7% and t. rangeli in 25%. however, the use of several diagnostic tests (direct microscopic examination, hemoculture, xenodiagnosis, and animal inoculation) in 15 marmosets revealed t. cru ... | 1976 | 820209 |
| [systolic parameters of the left ventricle in chronic myocardiopathy of chagas disease]. | 1976 | 821456 | |
| immunization of mice with irradiated trypanosoma cruzi growth in cell culture: relation of numbers of parasites, immunizing injections, and route of immunization to resistance. | 1976 | 821876 | |
| evaluation of an autoimmune type antibody in the sera of patients with chagas' disease. | utilizing cryostat sections of mouse heart as antigen, antibodies in the sera of patients with chagas' disease were investigated for autoimmune-type interation. sera from 47 normal, 70 patients with various contagious diseases, 116 sera from persons with leishmaniasis, and 90 from persons with chagas' disease were evaluated. antibodies in 44% of the sera tested from persons from chile with xenodiagnostically proven infections of chagas' disease showed antibodies that interacted with the heart se ... | 1976 | 822145 |
| nonspecific resistance against trypanosoma cruzi enhanced by corynebacterium parvum. | 1976 | 822147 | |
| chagas' disease--a survey of the present position. | 1976 | 822538 | |
| chemotherapy of chagas' disease. | 1976 | 822539 | |
| epidemiology of chagas' disease. | 1976 | 822540 | |
| letter: apparent absence of a sex attractant in adult triatoma infestans (klug), vector of chagas' disease. | 1976 | 822541 | |
| letter: antibodies to neurons in chronic chagas' disease. | 1976 | 822542 | |
| the epidemiology and household distribution of seroreactivity to trypanosoma cruzi in a rural community in northeast brazil. | the prevalence rates and household distribution of seroreactivity to trypanosoma cruzi by complement fixation (cf) and indirect immunofluorescent antibody methods were determined in a population of 1,087 persons living in a rural area endemic for chagas' disease in northeast brazil. there was a gradual rise in the rate of seropositivity to 60% by age 20. between ages 20 and 55 the prevalence rate remained at about 60%, but declined thereafter. the decline in the older age groups was not accompan ... | 1976 | 822736 |
| comparison of counterimmunoelectrophoresis (cie) with other serologic tests in the detection of antibodies to trypanosoma cruzi. | application of counterimmunoelectrophoresis (cie) in detection of antibodies against trypanosoma cruzi in sera of 180 subjects from an endemic area (bolivia), and 50 subjects from a nonendemic area (u.s.a.) was carried out, and the results were compared to ones obtained with latex agglutination (la) and indirect hemagglutination (iha). the optimal conditions for cie were determined to be as follows: barbitone buffer of ph 8.2 and ionic strength 0.05 m was used in the chambers and in preparing th ... | 1976 | 822737 |
| [the q-b interval in the chronic form of chagas' disease]. | 1976 | 822808 | |
| [lipid metabolism in chagas' disease. aspects of the radioactivity curves of the blood after ingestion of triolein labelled with i-131]. | 1976 | 822809 | |
| [duodenal arterio-mesenteric occlusion in chagas' disease (author's transl)]. | 2006 | 822860 | |
| [association between cardiomyopathy and positive serology for american trypanosomiasis in an area of argentina endemic for chagas' disease]. | 2006 | 823392 | |
| [anatomo-pathological aspects and therapeutic response in experimental chronic chagas' disease]. | 2006 | 823631 | |
| [reduction of nitroblue tetrazolium (nbt) and false-positive results : schistosomiasis mansoni and chagas' disease]. | 2015 | 823632 | |
| trypanosoma cruzi: lactate dehydrogenase isoenzymes and infections in mice. | 1976 | 824154 | |
| [decreased incidence of cardiopathic chagas' disease in the hospital das clinicas de ribeirao preto during 1960 - 1970]. | 1976 | 824690 | |
| experimental trypanosoma cruzi infections in rhesus monkeys. ii. the early chronic phase. | information on the acute and early chronic phases of infection with trypanosoma cruzi in eight rhesus monkeys is reported with particular reference to the pattern of subpatent parasitaemia and serology. xenodiagnosis was superior to animal inoculation and blood culture in its capacity to detect subpatent parasitaemia. each monkey showed an individual, relatively constant pattern of this not related to the nature of the inoculum. levels of indirect fluorescent and indirect haemagglutinating antib ... | 1976 | 824765 |
| skin test reactions in cutaneous leishmaniasis and chagas' disease. | 1976 | 824766 | |
| chagas' disease of the colon. | one hundred cases of chagasic megacolon operated upon in bahia, brazil, have been analysed. the principal theories of the pathological physiology of the disease are discussed. the pre- and postoperative radiographic features of the colon are presented, and the surgical treatment as well as the incidence of complications and late results are reported. | 1976 | 825180 |
| effect of chagasic sera on the rat isolated atrial preparation: immunological, morphological and function aspects. | an antibody reacting with the plasma membrane of working myocardial cells, skeletal muscle fibres, and endothelial cells (evi antibody) has been described in the sera of patients with chagas' disease. in the present study of rat isolated atrial preparations beating in ddifferent media, direct immunofluorescence and ultrastructural immunohistochemical procedures indicate that the antibody can interact with the living tissue, becoming fixed to the plasma membranes. transmission electronmicroscopy ... | 1976 | 825225 |
| role of activated macrophages in resistance of mice to infection with trypanosoma cruzi. | the role of the activated macrophage in resistance of mice to infection with trypanosoma cruzi was investigated with use of mice that had not been infected with t. cruzi but whose macrophages were activated by toxoplasma gondii or besnoitia jellisoni. mice with activated macrophages were significantly more resistant to intra-peritoneal challenge with the tulahuen strain of t. cruzi than were controls. the role of serum factors in resistance to t. cruzi was excluded by the demonstration of no dif ... | 1976 | 826595 |
| the attraction of trypanosoma cruzi to vertebrate cells in vitro. | a video technic is described that permits a quantification of the degree of attraction of trypanosoma cruzi trypomastigotes to vertebrate cells in vitro. bovine embryo skeletal muscle cells (besm), hela cells and vero cells all attract a myotropic strain of t. cruzi trypomastigotes. besm cells, however, are 2-fold more attractive to trypomastigotes than hela cells and 10-fold more attractive than vero cells. heat-inactivation of besm cells abolishes their ability to respire and also to attract t ... | 1976 | 826623 |
| effect of fetal calf serum fractions and proteins on division and transformation of trypanosoma (schizotrypanum) cruzi in vitro. | division and epimastigote-to-trypomastigote transformation of trypanosoma cruzi were observed in o'daly's sm medium supplemented, in place of whole fetal calf serum, with fractions of this serum, its partially purified proteins, or with mixtures of these fractions and proteins. in addition to their division-promoting effects, most but not all serum fractions stimulated [3h]thymidine uptake by the flagellates. as revealed by teae-cellulose column chromatography and immunoelectrophoresis, the seru ... | 1976 | 826625 |
| [the technic of immunoperoxidase in the detection of acute chagas' disease]. | 1976 | 826755 | |
| [detection of specific agglutinis in the diagnosis of chagas' disease (trypanosomiasis americana)]. | 1976 | 826756 | |
| [dysfunction of the sino-atrial node in chagas' disease]. | 2006 | 826990 | |
| [clinico-therapeutic trial with benzonidazole in chagas' disease]. | 2007 | 827007 | |
| the protective effect of the epimastigote forms of the pf strain of trypanosoma cruzi against a virulent homologous infection. | epimastigotes are assumed to be non-infective forms of trypanosomes. however, epimastigotes of the pf strain of the trypanosoma cruzi when injected in mice, in a single low dose, conferred on the animals a very good protection against challenge of a virulent homologous strain. | 1976 | 827037 |
| [1st finding of triatoma tibiamaculata pinto, 1926 naturally infected by trypanosoma cruzi in ubatuba, são paulo, brazil]. | 1976 | 828291 | |
| cellular immunity to trypanosoma cruzi infection in mice. | 1976 | 828292 | |
| immunology of chagas' disease i. circulating antigens in mice experimentally infected with trypanosoma cruzi. | 1976 | 828294 | |
| differences in the susceptibility of trypanosoma cruzi strains to active chemotherapeutic agents. | 1976 | 828295 | |
| [study on the use of rhodnius neglectus in xenodiagnosis in opossums (didelphis)]. | 1976 | 828296 | |
| [thickness of the pyloric muscle in relation to chagas' disease]. | the authors analyzed the thickness of the pyloric muscle of 139 patients with peptic ulcer or gastric cancer. subtracting the muscular thickness of pylorus measured by a ruler from the thickness estimated by the formula, p.t.=0.0415 x w+2.9, where p.t. represents the thickness of the pyloric muscle in millimeters and w represents the weight of the body in kilograms, they had the deviation from normal, in mm. the muscles with deviations greater than 3 mm were considered hypertrophics. comparing t ... | 2006 | 829083 |
| [chagas disease in chiapas. epidemiologic studies]. | 2006 | 829176 | |
| [chagas' disease in the state of yucatan, mexico (transmission report)]. | 2006 | 829177 | |
| [sialography of the parotid gland in patients carrying chagas' disease and megaesophagus (author's transl)]. | 2007 | 829844 | |
| [non-virulence in mice of pf branch of trypanosoma cruzi. evaluation through xenodiagnosis, tissue culture and histopathology]. | 1976 | 829996 | |
| [megavisceral syndrome. report of 2 cases]. | two patients with splanchnomegaly are presented, and it is proved through experimental, clinical, anatomicopathological, and epidemiological investigations that trypanosoma cruzi--the etiological agent of chagas' disease--causes splanchnomegaly in those countries where this disease is endemic. it is neither assured nor denied that trypanosome cruzi has been the causal agent of splanchnomegaly in the studied patients. it is suggested that in further investigations this problem may be cleared up. | 1976 | 830046 |
| [triatominae capable of transmitting trypanosoma cruzi in cuba]. | a brief review of the species of the genus triatoma that have been described in some epidemiology books is made. triatoma rubrofasciata has been found at the oriente province in our country. triatoma flavida has been found at the pinar del río, las villas, camagüey, and oriente provinces. both insects transmit the chagas' disease. | 1976 | 830048 |
| diagnosis of experimental encephalitozoonosis in rabbits by complement fixation. | a complement-fixation (cf) test has been developed for detection of experimental encephalitozoonosis in rabbits. the antigen consisted of disrupted homogenates of encephalitozoon cuniculi spores grown in and released from rabbit choroid plexus tissue culture cells. the test was sensitive and capable of detecting experimental encephalitozoonosis in rabbits as early as 15 days after intracerebral infection. the test was specific for infected animals, and no cross-reactivity was demonstrated betwee ... | 1977 | 864288 |
| intramural ganglion cell degeneration in inflammatory bowel disease. | comparable histologic alterations of intramural nervous tissue were reported in various diseases of the small and large intestine. in 6 cases, an intestinal obstruction was present which led to secondary intramural inflammation. the obstruction was induced by the spastic segment in hirschsprung's disease (3 cases), by rectal atresia (2 cases) and by postoperative ischemic damage to the intestinal wall (1 case). in 4 other patients, the inflammation was predominant. the diseases considered were n ... | 1977 | 913914 |
| [familial syndrome combining short small intestine, intestinal malrotation, pyloric hypertrophy and brain malformation. 3 anatomoclinical case reports]. | anatomoclinical study of 3 cases of an exceptional malformative condition characterized by: --extreme shortness of the small intestine, --mesenterium commune, --hypertrophic pylorus, --malformation of the central nervous system (heterotopia, absence of operculum temporale). clinically this malformative condition is characterized by failure and inertia of the intestinal peristalsis producing at intervals of 10-15 days episodes of subocclusion, the repetition of which causes death. the syndrome is ... | 2007 | 1023783 |
| investigation of the evi antibody in parasitic diseases other than american trypanosomiasis. an anti-skeletal muscle antibody in leishmaniasis. | the specificity of a circulating antibody observed in american trypanosomiasis and reacting with endocardium, blood vessels, and the interstitium of striated muscle (evi factor) was evaluated in the indirect fluorescent antibody test with 60 sera from patients with malaria, leishmaniasis, echinococcosis, amebiasis, african trypanosomiasis, toxoplasmosis, and trichinosis, collected from areas where chagas' disease is not endemic. two sera, 1 from a patient with plasmodium falciparum malaria and 1 ... | 1975 | 1089366 |
| studies of in vitro infection by trypanosoma cruzi. i. ultrastructural studies on the invasion of macrophages and l-cells. | the interactions of trypanosoma cruzi with l-cells, and with normal and activated macrophages in vitro were studied by ultrastructural techniques. t. cruzi actively invades cultured l-cells and uniformly destroys them. normal macrophages could control a 1:1 (parasite to host cell) infection, but were destroyed by a 10:1 infection. bcg-activated macrophages, however, controlled a 10:1 infection but not one at a ratio of 100:1. it appears that parasites that survive within host cells do so outsid ... | 1975 | 1089367 |
| trypanosoma cruzi: fatty acid metabolism in vitro. | 1975 | 1090440 | |
| the immunological response of cba mice to trypanosoma musculi: mechanisms of protective immunity. | 1975 | 1090551 | |
| axenic culture of trypanosoma cruzi in a chemically defined medium. | 1975 | 1090715 | |
| a macromolecule-free partially defined medium for trypanosoma cruzi. | a macromolecule-free medium, containing in its defined part 3 salts, glucose, hemin, 21 amino acids, 3 lipids, and some undefined components obtained by dialysis of liver infusion, was developed for serial cultivation of trypanosoma cruzi at 28 c. the medium allows prolonged cultivation of t. cruzi by serial transfers and growth comparable to that obtained in more complex media, including those containing blood serum. | 1975 | 1090736 |
| electron-microscopic mapping of at-rich regions and of e. coli rna polymerase-binding sites on the circular kinetoplast dna of trypanosoma cruzi. | partial alkaline denaturation of the circular kinetoplast dna (kdna) of trypanosoma cruzi has shown the existence of 4 small, well-defined at-rich regions with an average size of about 200 base pairs. they are almost equally distributed, separated by approximately 90 degrees on the circular molecule. all minicircles, whether free or linked in networks, have the same denaturation pattern and, therefore, seem to contain the same information. the long linear molecules present in low amounts in the ... | 1975 | 1092704 |
| glycoproteins from trypanosoma cruzi: partial purification by gel chromatography. | 1975 | 1093868 | |
| synthesis and antitrichomonal activity of certain pyrazolo (1,5-a) pyrimidines. | several bridgehead nitrogen heterocycles were synthesized to be screened as antimicrobial agents, modeled after nalidixic acid. the activity of these new compounds, all derivatives of 3-nitro-4,6-disubstituted pyrazolo (1,5-a)pyrimidin-7-ones (3,7,8, and 9), however, was found to be highly specific for trichomonas foetus and completely lacking in activity against bacteria, fungi, and parasites other than trichomonas. of the nine componds synthesized, including the intermediate 4,6-disubstituted ... | 1975 | 1094116 |
| the chondriome of selected trypanosomatids. a three-dimensional study based on serial thick sections and high voltage electron microscopy. | the unitary nature of the chondriome of two species of trypanosomatids, blastocrithidia culicis and trypanosoma cruzi, has been demonstrated by utilizing serial thick-sectioning techniques combined with high voltage electron microscopy. profiles of mitochondrial elements seen in thin sections and suspected to be parts of a continuum were confirmed by serial thick sectioning (0.25-0.50 mum thick) and stereopair analysis to be parts of the same mitochondrion. three-dimensional models obtained from ... | 1975 | 1095599 |
| letter: concomitant infection by toxoplasma gondii and trypanosoma cruzi. | 1975 | 1096376 | |
| an electron microscopic and cytochemical study of the cell coat of trypanosoma cruzi in tissue cultures. | using the cytochemical method of thiery, a polysaccharide surface coat was demonstrated with the electron microscope in the various developmental stages of trypanosoma cruzi maintained in tissue cultures. the cell coat was observed on the whole surface membrane system of t. cruzi. a positive reaction, similar to that observed in the cell membrane, was also obtained in the membranes of some vacuoles in the cytoplasm of the parasites. no granules were found in the parasites. no granules were found ... | 1975 | 1096482 |
| effect of the antiphagocytic agent cytochalasin b on macrophage invasion by leishmania mexicana promastigotes and trypanosoma cruzi epimastigotes. | unstimulated mouse peritoneal exudate cells were cultured on coverslips in medium 199 containing 10 per cent (v/v) calf serum. cytochalasin b dissolved in dimethyl sulphoxide (dmso) and diluted in medium 199 was added to cultures to give final concentrations of 1, 5 and 10 mug/ml. equal numbers of leishmania mexicana promastigotes, trypanosoma cruzi epimastigotes and sheep red cells were added to 24 hr cultures incubated at 37 c. the macrophage monolayers were fixed and stained at various time i ... | 1975 | 1097661 |
| cryopreservation of trypanosoma cruzi bloodstream forms. | recovery rates of t. cruzi bloodstream forms subjected to several methods of cryopreservation in liquid nitrogen and at -73 c are reported. inoculations of animals with cryopreserved and nonpreserved trypomastigotes revealed that prolonged storage at -196 c apparently did not change the biologic characteristics of different t. cruzi strains. the reproducibility and consistency of results suggest that "cryobanks" or "reference centers" may be established. | 1975 | 1099192 |
| [comparative morphological studies on the kinetoplast of various species of trypanosomes, with special reference to trypanosoma cruzi (author's transl)]. | comparative electron microscope studies on the morphology of the kinetoplast dna (k-dna) of the epimastigotes in many trypanosome species were carried out under standardized conditions. the k-dna shows a morphological variation during the cell cycle of culture forms of the trypanosome species under study. in longitudinal sections of the kinetoplast, the k-dna of t. cruzi appears as a compact trabecular structure; as a relatively disaggregated unit, with a central band or in a transitional stage ... | 1975 | 1099748 |
| a serological study on human trypanosoma rhodesiense infections using a micro-scale enzyme linked immunosorbent assay. | a micro-scale enzyme linked immunosorbent assay for african trypanosomiasis is described. the test uses very small quantities of sera and with t. brucei antigen is sensitive in detecting t. rhodesiense infections in man. cross reactions occur with antisera to, and antigens of, leishmania donovani and trypanosoma cruzi. | 1975 | 1099749 |
| trypanosoma cruzi: antimicrobial activity and strain differentiating properties of some five- and six-membered heterocyclic compounds on trypomastigotes. | 1975 | 1100423 | |
| trypanosoma cruzi: comparative fatty acid metabolism of the epimastigotes and trypomastigotes in vitro. | 1975 | 1100424 |