| rapid, colorimetric test for the determination of hippurate hydrolysis by group b streptococcus. | a colorimetric test for the determination of hippurate hydrolysis was developed. brain heart infusion broth made with 1% sodium hippurate served as the test medium. hydrolysis was determined by the addition of two chemical developers, m (rhodamine b) and a (uranium acetate). a dark pink color indicated hydrolysis; no color change indicated no hydrolysis. the method was efficacious in either rapid or overnight incubation. one hundred twenty-five strains of group b, 44 strains of group a, 15 strai ... | 1976 | 767358 |
| protein v, a novel type-ii igg receptor from streptococcus sp.: sequence, homologies and putative fc-binding site. | we have cloned and sequenced the fc-receptor-encoding gene, fcrv, from a group g streptococcus. considerable similarity was revealed between the fcrv, fcra76 and m proteins of group a streptococci in their signal sequences and 3' termini, and between the fc-binding regions of fcrv and fcra76. the promoter and terminator regions showed no homology with those of the fcra76 and m protein-encoding genes. the a1-a4 domains of fcrv (protein v) exhibit a heptapeptide repeat motif which is characteristi ... | 1992 | 1398120 |
| occurrence of beta-hemolytic streptococcus group g in school children and sick children. | we studied the occurrence of streptococcus group g in throat cultures obtained from school children of poor socioeconomic status and in sick children brought to our hospital. the results revealed a high occurrence of group g streptococci (44% and 91.5% respectively) in cases positive for beta-hemolytic streptococci. | 1990 | 2237589 |
| structure of the group g streptococcal polysaccharide. | the structure of the group-specific polysaccharide of group g streptococcus was determined by means of methylation analysis and selective chemical degradations. the anomeric configurations and conformations of the sugar residues were studied by 1h- and 13c-n.m.r. spectroscopy. the tetrasaccharide repeating unit, ----3)-alpha-d-galp-(1----2)-[alpha-l-rhap-(1----3)-beta-d-galpnac - (1----4)]-alpha-l-rhap-(1----, was determined. | 1988 | 3359455 |
| pyomyositis in a patient with progressive systemic sclerosis. case report and review of the literature. | pyomyositis has become an increasingly recognized disease in temperate climates. a patient receiving chlorambucil for progressive systemic sclerosis, in whom streptococcal pyomyositis developed, is presented. magnetic resonance imaging led to the early diagnosis. to our knowledge, this is the first case report of pyomyositis in a patient with scleroderma, and the first association with group g streptococcus infection in an adult. connective tissue diseases and immunosuppression may emerge as ris ... | 1988 | 3288163 |
| group g streptococcal endocarditis: two case reports, a review of the literature and recommendations for treatment. | two cases of endocarditis caused by a group g streptococcus are reported and the literature on group g streptococcal endocarditis is reviewed. the onset of illness is usually acute and the portal of entry for the organism through the skin. the left side of the heart is mainly involved and in about 50% cases the endocarditis arises on a normal valve. most patients develop complications, both embolic and cardiac, and the mortality is high (36%). we suggest that patients with proven group g strepto ... | 1988 | 3280691 |
| bacteremia and fungemia in patients with the acquired immunodeficiency syndrome. | forty-nine episodes of bacteremia and fungemia occurred in 38 of 336 patients with the acquired immunodeficiency syndrome seen at our institution since 1980. there were five types of infections. infections commonly associated with a t-cell immunodeficiency disorder comprised 16 episodes and included those with salmonella species, listeria monocytogenes, cryptococcus neoformans, and histoplasma capsulatum. infections commonly associated with a b-cell immunodeficiency disorder included those with ... | 1986 | 3485396 |
| beta-haemolytic group a, b, c and g streptococcal septicaemia: a clinical study. | 87 beta-haemolytic streptococcal septicaemias in adult patients during 1979-86 in a university hospital were reviewed. 25% were caused by group a streptococcus, 17% by group b, 14% by group c and 44% by group g streptococcus. 67% of the septicaemias due to group b streptococcus were nosocomial, whereas the group a, c or g septicaemias were in most cases community-acquired. alcoholism was the most common underlying disease in group a (32%) and malignancy in group g streptococcal septicaemias (45% ... | 1988 | 3041561 |
| nucleotide sequence of the streptokinase gene from a group-g streptococcus. | | 1989 | 2922269 |
| postoperative endophthalmitis and asymptomatic bacteriuria caused by group g streptococcus. | | 1989 | 2784632 |
| [right heart endocarditis]. | symptoms, cause and survival in 11 patients with right heart endocarditis hospitalized from 1973 to april 1989 were analyzed. the main symptoms were high fever, chest pain and dyspnea due to septic pulmonary emboli. the age of the 6 men and 5 women ranged from 19 to 66 years. 9 intravenous drug abusers and a patient with a pacemaker and carcinoma of the colon had tricuspid valve endocarditis. in another patient without known risk factors the aortic valve was affected as well. staphylococcus aure ... | 1989 | 2686008 |
| [persistent lymphedema of the penis and scrotum after recurrent episodes of cellulitis and urethritis caused by chlamydia trachomatis]. | a 20 year old man affected by a persistent peno-scrotal lymphedema is reported. this condition followed recurrent attacks of cellulitis and a chronic urethritis. from the urethral discharge we isolated chlamydia trachomatis and, only during the attacks of cellulitis, group g streptococcus. this pathogen cannot be isolated from microflora of the normal urethra and rarely cause cellulitis. in our opinion chlamydial infection favoured the urethral colonization of group g streptococci and their pass ... | 1989 | 2630439 |
| [selection of constitutive mutants of gram-positive cocci inducible resistant to macrolides, lincosamides and streptogramins (mls): comparison of the selective effects of the mls]. | mutation frequencies to constitutive resistance were determined for 7 strains inducible resistant to the mls antibiotics (5 staphylococcus aureus, 1 group g streptococcus and 1 streptococcus sanguis). in the 5 staphylococcal strains, mutants were generally selected at a frequency of 10(-9) to 10(-10) (ranging from 4.10(-8) to 9.10(-11) on plates containing 50 mg/l of the following non-inducer mls: spiramycin, josamycin, midecamycin, miocamycin, lincomycin, clindamycin, and pristinamycin factor i ... | 1989 | 2508040 |
| purulent pericarditis caused by group g streptococcus. | | 1990 | 2355428 |
| purification and partial characterization of a cohaemolysin (camp-factor) produced by streptococcus canis. | a cohaemolysin from the culture supernate of a canine pathogenic group g streptococcus (s. canis) was purified to electrophoretic homogeneity. the purification procedure involved ammonium sulphate precipitation, ultrafiltration, gel filtration and preparative isoelectric focusing. the cohaemolysin consisted of a single polypeptide chain, 18.6 kda, with an isoelectric point at ph 5.1. the protein reacted with an homologous antiserum, appeared to be trypsin-sensitive and relatively heat-stable. th ... | 1990 | 2257165 |
| group g streptococcal septic arthritis. | the lancefield group g streptococcus is known to be a cause of serious infective illness. however, few cases of septic arthritis are recorded. only one report of this infection, following total joint replacement, has appeared in the orthopaedic literature. here we describe a further case of infection in a previously normal joint that presented with unusual clinical findings and radiographic changes. we stress the importance of accurate bacteriological investigation and aggressive treatment. | 1990 | 2206829 |
| group g streptococcal sacroiliitis. | we describe herein an unusual case of recurrent pyogenic sacroiliitis in an intravenous drug abuser. blood cultures grew group g streptococcus. the patient was treated effectively with 7 wk of penicillin g. group g streptococci are emerging as important pathogens of serious infections. | 1986 | 3956143 |
| group g streptococcal meningitis and sepsis in a patient with aids. a method to biotype group g streptococcus. | lancefield group g streptococcus is now recognized as a pathogen and has been reported to cause severe infections, including meningitis. we describe the first case of meningitis caused by this organism in a patient with acquired immunodeficiency syndrome (aids) and the direct transmission of the pathogen to a technologist accidentally exposed to the cerebrospinal fluid. to prove the identity of the two strains, we have tested them employing the vitek system. we have also tested 13 other strains ... | 1990 | 2200636 |
| [septic arthritis caused by group g streptococcus in a female patient with lepromatous leprosy]. | | 1991 | 2023469 |
| group g streptococcus septic arthritis and osteomyelitis: report and literature review. | beta hemolytic streptococcus group g is increasingly being recognized as a cause of serious infections. we describe a patient with group g streptococcus septic arthritis of the right knee and osteomyelitis of the proximal tibia. clinical details of 46 patients including 13 patients with infected prosthetic joints reported in the literature were reviewed: 42% had multiple joint involvement. almost all patients had underlying conditions. almost one-half were treated with antibiotics alone without ... | 1991 | 1895274 |
| a novel, highly stable fold of the immunoglobulin binding domain of streptococcal protein g. | the high-resolution three-dimensional structure of a single immunoglobulin binding domain (b1, which comprises 56 residues including the nh2-terminal met) of protein g from group g streptococcus has been determined in solution by nuclear magnetic resonance spectroscopy on the basis of 1058 experimental restraints. the average atomic root-mean-square distribution about the mean coordinate positions is 0.27 angstrom (a) for the backbone atoms, 0.65 a for all atoms, and 0.39 a for atoms excluding d ... | 1991 | 1871600 |
| a simple preparative procedure to extract and purify protein g from group g streptococci. | a rapid method for the solubilization of the bacterial type iii fc binding protein, protein g, from a group g streptococcus is described. treatment of intact bacteria with cyanogen bromide results in the solubilization of a homogeneous mr approximately 50,000 protein which retains igg and human serum albumin binding properties. the solubilized protein could be purified to homogeneity by molecular sieving chromatography and retained all of the functional properties of the native protein. | 1991 | 1857686 |
| [a severe epidemic of streptococcus group g infection in hemodialysis: epidemiologic survey by molecular biology and preventive measures]. | an outbreak of group g streptococci infection affected 6 patients of an hemodialysis unit. group g streptococci were isolated from patients and from numerous atmospheric specimens, different parts of two dialysis machines, and two blankets, but from only one nurse on the hospital staff. typing of group g streptococci by an improved method of dna fingerprinting showed that the isolates from one patient, the nurse and the two blankets differed from one another. the group g streptococci were probab ... | 1991 | 1766529 |
| differentiation of species in human beta-haemolytic group g streptococci using immunoglobulin fc fragment receptor. | to assess the ability of human immunoglobulin fc fragment binding activity to differentiate human biotype large colony group g streptococci from the group g "streptococcus milleri group". | 1992 | 1556232 |
| bacterial arthritis. | the 1991 literature on septic arthritis included a concise review of adult septic arthritis, examples of pseudoseptic arthritis, and two interesting animal studies. one animal study examined the induction of acute synovitis by the intra-articular injection of bacterial endotoxin and the cytokines tumor necrosis factor-alpha, and interleukin-1 beta; and the other studied the effects of early and delayed synovectomy in the management of septic arthritis. the predispositions to septic arthritis can ... | 1992 | 1503874 |
| screening for corynebacterium diphtheriae. | a throat swab from a 9 year old girl with pharyngitis yielded a non-toxigenic strain of corynebacterium diphtheriae var mitis and streptococcus group g. c pseudodiphtheriticum was isolated from the throats of two of her four brothers. in each case the isolate was sent to the reference laboratory before full identification. the growth was found to be mixed for one brother; the other isolate being a toxin producing c diphtheriae var gravis. the child was asymptomatic and the case proves that all c ... | 1992 | 1452782 |
| primary peritonitis due to group g streptococcus: a case report. | | 1975 | 1196758 |
| group g streptococcal pneumonia and sepsis in a newborn infant. | a case of neonatal pneumonia and sepsis caused by a group g streptococcus is described. clinical and microbiological aspects of group g streptococci are compared with those of group b streptococci. | 1979 | 544637 |
| group g streptococcal endocarditis. | the group g streptococcus may be a more common human pathogen than previously recognized. a case of group g streptococcal endocarditis is reported and the 11 cases reported previously are reviewed. group g endocarditis may have significant clinical and prognostic differences from endocarditis caused by the more commonly identified viridans or group d streptococci. routine serologic grouping of beta-hemolytic streptococcal isolates from serious infections is warranted. | 1978 | 100003 |
| predictors of endocarditis in isolates from cultures of blood following dental extractions in rats with periodontal disease. | rats with periodontitis and catheter-induced aortic valve vegetations underwent dental extractions. cultures of blood obtained 1 min later showed polymicrobial bacteremia in 19 of 19 rats, mostly due to viridans streptococci (18 of 19), morganella (15 of 19), group g streptococci (13 of 19), and staphylococcus aureus (10 of 19). viridans streptococci circulated in higher numbers than did group g streptococci and s. aureus (p less than .01). three days after dental extractions, 18 of 20 rats had ... | 1988 | 3361156 |
| diarrhea caused by group g streptococcus. | | 1987 | 3475616 |
| polyarticular septic arthritis. | seven adult patients with nongonococcal polyarticular septic arthritis are presented with a literature review of the clinical features of polyarticular bacterial infection. polyarticular septic arthritis occurred in 19% of reported cases of septic arthritis in adults. similar to monoarticular disease, the knee was the most commonly affected joint, and staphylococcus aureus was the most frequently isolated microorganism. pneumococcus, group g streptococcus, and hemophilus influenzae had an increa ... | 1986 | 3494122 |
| group g streptococcal bacteremia in a chronically constipated adolescent. | a chronically constipated, mentally retarded male adolescent was admitted on two occasions with gastroenteritis symptoms and stool positive for group g streptococcus. the first episode was also associated with group g streptococcal bacteremia. this case of group g streptococcal disease is unique in that the primary symptoms were those of gastroenteritis. in the context of chronic constipation in colonic distention, the case appears to support the hypothesis of watsky et al that group g streptoco ... | 1987 | 3616708 |
| gene for an immunoglobulin-binding protein from a group g streptococcus. | the gene (spg) for an immunoglobulin g (igg)-binding protein from a streptococcus clinical isolate of lancefield group g was cloned and expressed in escherichia coli. the complete nucleotide sequence of the gene and 5'-flanking sequences was determined. the dna sequence includes an open reading frame which encodes a hypothetical protein of 448 amino acid residues (mr = 47,595). the 5' end of this open reading frame encodes a sequence resembling a typical secretion signal sequence, and the remain ... | 1986 | 3745123 |
| group g streptococcal infection of joints and joint prostheses. | eight cases of septic arthritis caused by beta-haemolytic streptococci of lancefield group g are presented and compared with others previously reported. involvement of prosthetic joints is notable (25%) as is accompanying cellulitis (75%) which is probably related to the portal of entry of the organism. other associated conditions were rheumatoid arthritis (38%) and malignant neoplastic disease (25%). carriage of the group g streptococcus was detected in two of the eight patients. serological te ... | 1986 | 3760595 |
| septicaemia and meningitis caused by a group g streptococcus. | | 1986 | 3794365 |
| pyogenic sacroiliitis caused by group g streptococcus. | | 1987 | 3814193 |
| [arthritis caused by group g streptococcus]. | | 1989 | 2608975 |
| efficacy of imipenem/cilastatin in endocarditis. | imipenem, a potent new beta-lactam antibiotic, which is bactericidal against most pathogenic bacteria, and cilastatin, a dehydropeptidase inhibitor combined with imipenem to prevent the metabolism of imipenem in the kidney, were evaluated in the treatment of bacterial endocarditis. seventeen patients, including 14 who used intravenous drugs, were treated with imipenem/cilastatin in a dose of 500 mg each infused over 30 minutes every six hours. the mean duration of treatment was 29 days with a ra ... | 1985 | 3859210 |
| group g streptococci in healthy school-children and in patients with glomerulonephritis in trinidad. | the group g streptococcus has generally not been considered a prominent pathogen. in a 1982 study of the colonization rate by beta-haemolytic streptococci in apparently healthy children, age 5-11 years, 25 of 69 isolates belonged to group g. this surprisingly high rate of group g colonization (14.3%) led to a retrospective study of school surveys in 1967 which showed that the colonization rate with this organism was 2.3% (range 1.3-3.5%). a review of bacitracin-sensitive streptococcal isolates f ... | 1985 | 3882827 |
| fatal postpartum infection with group g streptococcus. | | 1994 | 7888568 |
| streptococcus group g septic polyarthritis. | a case of streptococcus group g polyarthritis has been identified from blood and synovial fluid cultures and was sensitive to penicillin g. the clinical tendency to polyarticular infection by this organism and its discordant response to the antibiotics indicated by in vitro studies are discussed. | 1985 | 3937515 |
| infections due to lancefield group g streptococci. | the group g streptococcus has surfaced in the past 10 to 15 years as an important opportunistic and nosocomial pathogen. although more precise organism recognition accounts for a portion of these cases, there can be little doubt that the group g streptococcus has become a more prevalent pathogen. commercial kits, utilizing staphylococcal coagglutination or latex agglutination, are now available, affording all clinical laboratories the opportunity to identify this organism easily. published revie ... | 1985 | 3974442 |
| unusual occurrence of neonatal septicemia due to group g streptococcus. | | 1974 | 4823332 |
| lysis and lysogenization of groups a, c, and g streptococci by a transducing bacteriophage induced from a group g streptococcus. | a temperate bacteriophage, designated gt-234, was isolated from a group g streptococcus after ultraviolet irradiation. after several single-plaque passages in a group g indicator strain, this phage formed plaques in 3 of 14 group a strains, in 3 of 15 group c strains, and in 4 of 13 group g strains-but not in some representatives of several other serogroups. after propagation in each of the sensitive strains, the progeny from each was shown to be the same phage by (i) adsorption and plaque forma ... | 1971 | 5106346 |
| streptococci with dual antigen specificity for lancefield groups d and g. | streptococci have been isolated which may be identified in serological tests as belonging to lancefield group g, but in fact belong to group d. twenty-two cultures with this property were obtained from four countries; they included streptococcus bovis and streptococcus durans as well as streptococcus faecalis. selected strains were studied in serological tests and cross-absorption procedures, in which it was found that the group g reaction given by these isolates is due to an epitope with at lea ... | 1984 | 6084598 |
| interaction of thermally aggregated human igg with bacteria. | ninety-three bacterial strains, representing 16 gram-positive and gram-negative species, were tested for quantitative binding of 125i-labelled monomeric and thermally aggregated human igg. aggregated igg bound to all bacterial species studied, in contrast to monomeric igg, which interacted only with s. aureus, group a, c and g streptococci, viz. bacteria possessing previously described igg-fc receptors. a positive correlation was observed between binding of monomeric igg and the uptake of therma ... | 1984 | 6240187 |
| binding of human fibronectin to group a, c, and g streptococci. | a total of 387 bacterial strains belonging to 35 species were tested in direct binding experiments for the uptake of purified radiolabeled human fibronectin. positive binding was found in group a, c, and g streptococci and in staphylococcus aureus. the group c streptococcal species streptococcus equisimilis, streptococcus zooepidemicus, streptococcus equi, and streptococcus dysgalactiae were uniformly reactive with fibronectin. beta-hemolytic bovine group g streptococci showed the same degree of ... | 1983 | 6299959 |
| a case study of streptococcus group g infection in a dairy herd. | in this paper an outbreak of bovine mastitis in a dairy herd caused by streptococcus group g is described. initial identification of the organism as streptococcus agalactiae was based upon hemolysis, esculin reaction, and camp reaction observed on blood agar used for bulk milk analysis. initial therapy with a penicillin-containing, lactating cow product cured 24.4% of all streptococcal infections. definitive serogrouping by coagglutination determined that the majority of infections were due to a ... | 1984 | 6390932 |
| lancefield group g streptococcus septic arthritis in a heroin user: report of a case. | | 1984 | 6490413 |
| evaluation of the natural killer cell-interferon system in patients with mid-gut carcinoid tumours treated with leucocyte interferon. | nine patients with mid-gut carcinoid tumours received leucocyte interferon (ifn) i.m. daily for 90 days. six patients clearly ameliorated in symptoms typical of the carcinoid syndrome (flushing, diarrhoea, asthma) which correlated with reduced serum levels of tumour related polypeptides and urinary output of 5-hydroxyindole acetic acid (5-hiaa). before ifn treatment, peripheral blood mononuclear leucocytes (pbls) from carcinoid patients showed markedly deficient production of ph 2 labile ifn-alp ... | 1983 | 6616963 |
| [experimental gallstone formation. etiological significance of beta-glucuronidase producing bacteria and biliary obstruction]. | bile pigment gallstones were produced in six of six mongrel dogs by narrowing the cystic duct with ligature after a postoperative interval of seven days. beta-glucuronidase producing group g streptococcus and staphylococcus aureus were found in the bile, the gallbladder wall, and the liver. in another trial similar gallstones were produced in four of eight dogs after mere injection of beta-glucuronidase producing escherichia coli into the spleen resp. in six of eight dogs after injection of e. c ... | 1983 | 6855381 |
| septic arthritis due to group g streptococcus. | | 1982 | 7057559 |
| fractionation of rat igg subclasses and screening for igg fc-binding to bacteria. | the four igg subclasses of the rat, iggl, igg2a, igg2b and igg2c, were purified from normal serum by a combination of protein a-affinity chromatography and deae-cellulose chromatography. purified, radiolabelled preparations of igg were tested for binding to gram-positive bacteria representing five different fc-receptor (fcr) types. distinct rat subclass-specific fc-binding was noted to bacterial species belonging to different fc-receptor types. staphylococcus aureus (fcr i) strains bind iggl and ... | 1982 | 7078553 |
| group g streptococcal arthritis. | four cases of infectious arthritis due to beta hemolytic streptococci, lancefield group g are described. three patients presented with acute polyarthritis involving unusual sites while the 4th patient had acute monoarthritis. all 4 cases had underlying diseases which predisposed them to infection: alcoholism (2 cases), malignant disease (1 case) and diabetes mellitus (1 case). three patients had coexistent group g streptococcal infection: endocarditis in 2 and skin infection in 1. with adequate ... | 1982 | 7120237 |
| group g streptococcal arthritis. | six cases of lancefield group g streptococcocal arthritis are described. two cases had pre-existing chronic arthritis (one rheumatoid) with infection of a joint prosthesis. three cases had neoplastic disease before or at the same time as septic arthritis. skin reactions, including cellulitis and scarlatiniform rash were prominent in five cases. one patient may have acquired a group g streptococcus from her dog. five cases responded well to penicillin and the sixth who was allergic to that drug w ... | 1982 | 7134741 |
| analysis of bacterial cell wall proteins and human serum proteins bound to bacterial cell surfaces. | a method was developed for the characterization of proteins non-covalently bound to the cell wall of gram-positive cocci. the method employs radioactive labelling of cell wall proteins followed by solubilisation and analysis on polyacrylamide gel electrophoresis in sodium dodecyl sulphate. using this experimental procedure, protein patterns obtained from group a, c and g streptococcal strains showed marked similarities within each group. protein peaks were also found to be shared between group c ... | 1981 | 7257773 |
| immunoglobulin characterization by bacterial absorption of antibrain antibodies in multiple sclerosis. | complement-fixing (cf) antibrain antibodies are frequently found in serum and csf in multiple sclerosis (ms). they represent several specificities and appear to be synthesized on both sides of the blood-brain barrier. five sera and six csf samples from 11 ms patients, representing 6 different specificities of antibodies, were absorbed with a series of bacterial strains with affinity for various immunoglobulins. reactivity with brain preparations was eliminated by absorption with the following ig ... | 1981 | 7285987 |
| group g streptococcus. | three patients with serious infections due to beta hemolytic streptococci, lancefield group g are presented. the clinical syndromes are septicemia with possible endocarditis in a patient with laryngeal carcinoma, septic arthritis in a healthy boy and endocariditis in an adult with no previous underlying valvular disease. all were treated with intravenous penicillin and recovered. the clinical and microbiologic significance of recognizing the organism is emphasized. | 1980 | 7386520 |
| bacterial meningitis after myelography. | two cases opf bacterial meningitis due to streptococci occurred following pantopaque myelography. these are, to our knowledge, the first reports of streptococcus mitus and group g streptococcus causing meningitis in this situation. these 2 cases emphasize the importance of considering the possibility of bacterial meningitis following myelography and the difficulty in differentiating it on clinical grounds from the more common aseptic meningitis that occurs after myelography. they also emphasize ... | 1980 | 7434200 |
| clinical pharmacologic aspects of cefixime in dogs. | the minimal inhibitory concentration (mic) of cefixime, a new third-generation orally administered caphalosporin, was determined for reference and clinical isolates from dogs. the mic of the drug for all but 1 of the 18 enterobacteriaceae isolates tested, 1 pasteurella canis, 1 rhodococcus equi, 1 streptococcus canis, and 1 streptococcus group g isolate, was less than 1.0 microgram/ml. the mic for 9 staphylococcus intermedius isolates ranged from 1.56 to 6.25 micrograms/ml and, for 8 sta aureus ... | 1995 | 7661460 |
| group g streptococcus--an emerging cause of graft loss? | following anecdotal reports of skin graft loss due to non-group a streptococcal infection, a retrospective study was performed to compare the effect of streptococcal infections on our recent practice (1987-1990) and on a similar period 15 years earlier. graft loss was estimated following streptococcal infection of any kind for the two periods, and compared to staph. aureus controls. in the recent period, graft take was significantly decreased for streptococcus g compared to other non a groups an ... | 1994 | 8087374 |
| the effect of subminimal inhibitory concentrations of penicillin on growth rate and haemolysin activity of group g streptococcus. | the influence of the subminimal inhibitory concentrations (1/3 and 1/4 of the mic) of penicillin on growth rate and on haemolysin production of a strain of group g streptococcus was studied. it was shown that 1/3 of the mic almost completely inhibited the bacterial growth, but it was not able to inhibit haemolysin activity in the culture supernate. the generation time of bacteria grown in 1/4 of the mic was approximately twice longer than that of the control culture. in all cultures, the haemoly ... | 1993 | 8107606 |
| group g streptococcal bacteremia caused by an asymptomatic esophageal carcinoma in an elderly man. | i describe the case of a 70-year-old man with group g streptococcal bacteremia, anemia, and stools positive for occult blood in whom no clear source of infection was found until an asymptomatic esophageal carcinoma was diagnosed. group g bacteremia has been associated with neoplastic sources. although this patient was asymptomatic--even after a retrospective review of symptoms--endoscopy would still have been done because the stools were positive for occult blood. however, it is well known that ... | 1994 | 8202781 |
| aortic annular abscess complicating prosthetic valve endocarditis with group g streptococcus: detection during life with transesophageal echocardiography. | infection with group g streptococcus is an unusual but virulent cause of endocarditis. aortitis and abscess formation due to this organism have been described in one previous report, but only at necropsy. we present here a patient with group g streptococcal endocarditis and aortic annular abscess diagnosed during life by transesophageal echocardiography, leading to successful surgical intervention. | 1993 | 8269167 |
| clinical scoring system in the evaluation of adult pharyngitis. | to compare results of a clinical scoring system for diagnosis of group a streptococcal pharyngitis with microbiologic results, when several different pharyngeal pathogens were tested simultaneously. | 1993 | 8435167 |
| structure analysis of streptococcal protein g fc binding domain. | the gene fragment (191 bp) encoding protein g igg fc binding domain was isolated by pcr from group g streptococcus (cmcc32138), and a clone containing this gene fragment was found to give fine reactivity to human igg when expressed in escherichia coli. the complete nucleotide sequence of the gene fragment was determined. one base pair differs from previously reported protein g nucleotide sequences, and results in an amino acid change (ala-thr), but this variation makes no difference in binding t ... | 1993 | 8503988 |
| meningitis and sepsis due to group g streptococcus. | | 1993 | 8508823 |
| immunochemical characterization of the carbohydrate antigens of serotype k and lancefield group g "streptococcus milleri". | carbohydrate antigens of the serotype k/lancefield group g "streptococcus milleri" were extracted by autoclaving whole cells of the type k reference strain streptococcus anginosus k214-2k. the type k and group g antigen molecules are separated from each other and partially purified by a deae-sephadex a25 column chromatography followed by a sephadex g-100 gel filtration. in the double diffusion and the immunoelectrophoresis, the type k and group g antigen preparations obtained yielded single band ... | 1996 | 8604251 |
| thumb cellulitis attributable to group g streptococcus. | | 1996 | 8675951 |
| analysis of genetic relationships among strains of groups a, c and g streptococci by random amplified polymorphic dna analysis. | random amplified polymorphic dna (rapd) analysis was evaluated for its capacity to distinguish species and strains within species of groups a, c and g streptococci. the 99 strains tested, previously typed by multilocus enzyme electrophoresis (mlee), included 41 group a streptococci (streptococcus pyogenes), 25 group g streptococcus spp. (ggs), seven s. dysgalactiae, 11 s. equisimilis, four s. canis, three s. equi and eight s. zooepidemicus. the combined data obtained with three single primers di ... | 1996 | 8849702 |
| invasive group g streptococcal infections: a review of 37 cases. | beta-hemolytic streptococci group a, b, and d which cause many diseases have been well studied. infection caused by group g streptococcus has increased in clinical significance, and thus is attracting more physicians attention. this retrospective analysis reports clinical experience with such infections at the veterans general hospital-taipei. | 1995 | 8854439 |
| group g streptococcal arthritis. | five patients were seen in the ucla hospital system with septic arthritis due to group g streptococcus. all had prior joint disease or surgery on the affected joint. findings from physical examination and laboratory evaluation were typical for pyogenic arthritis. response to antimicrobial therapy was slow and marked by recurrent sterile joint effusions. group g streptococcal arthritis may be diagnosed more frequently if routine serologic grouping of streptococcal isolates from joint fluid sample ... | 1983 | 6870403 |
| intraamniotic infection due to group g streptococcus: treatment and antibody response. | penicillin treatment and antibody response were studied using a rhesus monkey model for intraamniotic infection with type iii group b streptococci (t3gbs). acute and convalescent phase sera from mothers and their offspring were tested with a radioactive antigen-binding assay to determine the concentration of antibody to the capsular t3gbs antigen. the frequency of placentitis was significantly lower in penicillin-treated animals (3 of 8) than in controls (10 of 10; p less than .01). the penicill ... | 1981 | 7019795 |
| immune recognition in the streptococcal carditis of mice: the role of macrophages in the generation of heart-reactive lymphocytes. | the role of immune t cells and of streptococcus-pulsed m phi in the production of cardiac lesions, as well as the ability of m phi to present streptococcal antigens to mouse lymphocytes, was investigated. cells of mice infected with extracts of group a streptococcus were able to induce the appearance of heart lesions when transferred to syngeneic receptors as well as to transfer dth reactions to syngeneic heart extracts. streptococcus-pulsed m phi were also able to induce heart lesions and an in ... | 1982 | 7037950 |
| acute group g streptococcal myositis associated with streptococcal toxic shock syndrome: case report and review. | the group g streptococcus (ggs) is a rare cause of deep soft-tissue infection. we report that we believe is the first case of acute diffuse ggs myositis in association with toxic shock. although the causative organism did not contain the genes for group a streptococcal pyrogenic exotoxins (spes) or make spes, the organism produced at least one new toxin that shared the biologic properties of the spes. | 1996 | 8922817 |
| pulsed-field gel electrophoresis is more discriminating than multilocus enzyme electrophoresis and random amplified polymorphic dna analysis for typing pyogenic streptococci. | the smai restriction endonuclease digestion patterns of chromosomal dnas from 99 pyogenic streptococci belonging to lancefield group a (41 streptococcus pyogenes), group c (seven s.dysgalactiae, 11 "s. equisimilis", three s. equi, eight s. zooepidemicus) and group g (25 human group g streptococcus, four s. canis) were analyzed by pulsed-field gel electrophoresis (pfge), and the results were compared with those previously obtained by multilocus enzyme electrophoresis (mlee) and random amplified p ... | 1997 | 9058542 |
| polymicrobial brain abscess in a patient infected with human immunodeficiency virus. | although intracranial mass lesions that occur as a result of infection have commonly been reported in patients infected with human immunodeficiency virus, polymicrobial pyogenic brain abscess has not been described in this setting. we report the first case of a patient with a polymicrobial brain abscess involving streptococcus bovis, fusobacterium necrophorum, peptostreptococcus, and group g streptococcus, and we review the relevant world literature. | 1997 | 9114198 |
| albumin receptor protein of group g streptococcus. cloning of the gene, characterization, and usage of the protein expressed in escherichia coli. | | 1997 | 9331761 |
| sepsis due to group g streptococcus after a total hip arthroplasty. a case report. | a patient with a total hip arthroplasty developed an aggressive infection with group g streptococcus. very few similar cases have been reported, but they all resolved with antibiotics or drainage. a girdlestone resection was necessary in our case because of loosening and extensive bony destruction. the true incidence may be greater than that reported and the prognosis may be worse. | 1997 | 9349969 |
| murine model of recurrent group g streptococcal cellulitis: no evidence of protective immunity. | despite the well-known tendency of cellulitis due to beta-hemolytic streptococci to recur, little is known regarding the mechanisms of human immunity to this infection. we established cellulitis in mice by using a strain of group g streptococcus (1750) originally isolated from the bloodstream of a patient with acute cellulitis. this strain, which has been studied extensively in our laboratory, expresses m protein structurally and functionally analogous to that of group a streptococci, and we hav ... | 1997 | 9393777 |
| opportunistic group g streptococcus infection of both prosthetic knee joints. | a case of polyarticular sepsis from group g streptococcus is described in a patient with rheumatoid disease and decubitus ulcers. this is a rare condition which is often associated with a mosaic of predisposing factors and requires prompt and aggressive antimicrobial therapy. | 1997 | 9507580 |
| cellular heterogeneity in non-immune igg-binding in a strain of streptococcus mitis. | electron microscopy revealed that streptococcus mitis atcc 903 bound gold probes conjugated with goat igg by non-immune mechanisms. only a few of the cells and the cell wall fragments could bind igg, in contrast to staphylococcus aureus and streptococcus group g which showed a more homogeneous binding to nearly all cells or cell wall fragments. | 1998 | 9721670 |
| toxic shock-like syndrome caused by group g streptococcus. | | 1998 | 9892544 |
| thermodynamic genetics of the folding of the b1 immunoglobulin-binding domain from streptococcal protein g. | a method has been developed to select proteins that are thermodynamically destabilized yet still folded and functional. the dna encoding the b1 igg-binding domain from group g streptococcus (strp g) has been fused to gene iii of bacteriophage m13. the resulting fusion protein is displayed on the surface of the phage thus enabling the phage to bind to igg molecules. in addition, these phage exhibit a small plaque phenotype that is reversed by mutations that destabilize the strp g domain. by selec ... | 1995 | 7716165 |
| group g streptococcus sacroilitis with sepsis in a 15-y-old adolescent. | group g streptococci cause invasive infections of different tissues. most infected patients have underlying diseases and are of adult age. invasive group g streptococcal infections rarely occur in childhood and adolescence. a 15-y-old boy with a beta-haemolytic group g streptococcus sacroiliitis, sepsis and secondary pulmonary manifestations resembling an acute respiratory distress syndrome is described. | 1999 | 10381229 |
| endogenous endophthalmitis due to group g streptococcus. | | 1999 | 10396398 |
| febrile lady with acute renal failure and desquamating erythema. | a 63-year-old woman developed acute renal failure and streptococcal toxic shock syndrome caused by streptococcus group g. initially, an erythema resembling vasculitis was misleading. the subsequent clinical course, however, was typical for streptococcal toxic shock syndrome and met the criteria put forward by the working group on severe streptococcal infections. in patients infected with streptococcus group g, toxic shock syndrome is rare. the streptococcus group g strains isolated from this pat ... | 1999 | 10401030 |
| [septic arthritis by beta-hemolytic streptococcus group g: presentation of one case and review of the literature]. | | 1999 | 10439550 |
| zoonotic infection with group g streptococcus. | | 1999 | 10451176 |
| antibiotic susceptibilities of group c and group g streptococci isolated from patients with invasive infections: evidence of vancomycin tolerance among group g serotypes. | a retrospective review of medical records for 32 patients with invasive group c streptococcus (gcs) or group g streptococcus (ggs) infections was performed. mics and minimum bactericidal concentrations (mbcs) of penicillin, erythromycin, and vancomycin for all isolates were obtained. tolerance of vancomycin, defined as an mbc 32 or more times higher than the mic, was exhibited by 18 ggs isolates (54%). the identification of tolerance in clinical isolates of ggs and gcs may have clinical implicat ... | 1999 | 10488212 |
| high-level aminoglycoside resistance in the beta-hemolytic group g streptococcus isolate bm2721. | the beta-hemolytic group g streptococcus clinical isolate bm2721 was resistant to high levels of aminoglycosides by synthesis of aac(6')-aph(2"), aph(3')-iii, and ant(6) modifying enzymes. the corresponding genes were found to be adjacent as the result of a recombination event between tn4001 and tn5405, two transposons originating in staphylococci. | 1999 | 10582899 |
| exploration of the in-vitro pharmacodynamic activity of moxifloxacin for staphylococcus aureus and streptococci of lancefield groups a and g. | the serum concentrations associated with the oral administration of 400 mg moxifloxacin every 24 h over 48 h in man were simulated in an in-vitro dilutional, continuous bacterial culture model of infection. the initial inoculum was 5 x 10(7)-5 x 10(8) cfu/ml and all strains were tested on at least three occasions. two strains of staphylococcus aureus (one methicillin susceptible, the other resistant) with moxifloxacin mics 0.14 mg/l and 0.06 mg/l and two strains of beta-haemolytic streptococci, ... | 1999 | 10590276 |
| recurrent cellulitis with group g streptococcus bacteremia in a cancer patient: a case report. | | 1998 | 10761030 |
| a devastating ocular pathogen: beta-streptococcus group g. | to report the clinical findings, treatment, and outcomes of four cases of beta-streptococcus group g (bhs-g) ocular infection. | 2000 | 10832687 |
| structural consequences of an amino acid deletion in the b1 domain of protein g. | we describe the nmr structure of a deletion mutant of the b1 igg-binding domain from group g streptococcus. the deletion occurs within the last beta-strand of the protein, where it may potentially have a deleterious effect on the stability of the protein if the protein were not able to conformationally adjust to the perturbation. in particular, the deletion changes the registry of the final three residues in the sheet, forcing a polar thr to be buried in the interior of the protein and exposing ... | 2000 | 11025544 |
| lateral genetic transfers between group a and g streptococci for m-like genes are ongoing. | previously we described a long-polymerase chain reaction (pcr) method to amplify a 4-7 kb target containing most of the components of the vir regulon (mga, emm-like genes and scpa) in a number of group a streptococcus (gas) isolates. in contrast to gas, strains of human group g streptococcus (ggs) gave approximately 1.6 or 1.8 kb products. sequence analysis of the amplified products issued from ggs templates revealed a mosaic consisting of upstream sequence from mga (the gene for positive regula ... | 1996 | 8861393 |
| in vitro activities of the novel ketolide telithromycin (hmr 3647) against erythromycin-resistant streptococcus species. | the in vitro susceptibilities of 184 erythromycin-resistant streptococci to a novel ketolide, telithromycin (hmr 3647), were tested. these clinical isolates included 111 streptococcus pyogenes, 18 group c streptococcus, 18 group g streptococcus, and 37 streptococcus pneumoniae strains. the mics for all but eight s. pyogenes strains were < or =0.5 microg/ml, indicating that telithromycin is active in vitro against erythromycin-resistant streptococcus strains. all strains for which mics were > or ... | 2001 | 11181362 |
| group g beta-hemolytic streptococcal bacteremia characterized by 16s ribosomal rna gene sequencing. | little is known about the relative importance of the four species of lancefield group g beta-hemolytic streptococci in causing bacteremia and the factors that determine the outcome for patients with group g beta-hemolytic streptococcal bacteremia. from 1997 to 2000, 75 group g beta-hemolytic streptococcal strains were isolated from the blood cultures of 66 patients. sequencing of the 16s rrna genes of the group g beta-hemolytic streptococci showed that all 75 isolates were streptococcus dysgalac ... | 2001 | 11526143 |
| streptolysin s and necrotising infections produced by group g streptococcus. | we encountered three patients with severe necrotising soft tissue infections due to beta-haemolytic group g streptococcus. due to strong clinical similarities with invasive infections produced by group a streptococcus, we investigated a potential link of shared beta-haemolytic phenotype to disease pathogenesis. | 2002 | 11809255 |