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ocular disease, notably of the uveal tract, induced by streptococcus viridans infection. 192716692783
thrombosis of the central retinal vein, with special reference to the streptococcus viridans. recovery. 193316692972
experimental iritis: the ocular reactions in rabbits sensitized to streptococcus viridans. 193616693101
successful liver and kidney transplantation from cadaveric donors with left-sided bacterial endocarditis.bacterial infections are frequent in cadaveric organ donors and can be transmitted to the transplantation recipient, which could have devastating consequences for the recipients if adequate preventive measures are not adopted. from the 355 consecutive brain dead cadaveric organ donors procured at our center in the last four years, 2000-2003, four of them (1.1%) had bacterial endocarditis as cause of death. the bacteria responsible for the endocarditis were staphylococcus epidermidis, coagulase-n ...200515760402
socket infection due to retained gauze after evisceration.a 64-year-old man had late-onset socket infection due to retained surgical gauze after evisceration. external examination showed a mass of retained surgical gauze with copious yellowish discharge and gas bubbles. computed tomography scans showed a 3.2 x 2.4 x 2.4-cm heterogeneous mass and numerous gas bubbles. culture of the discharge yielded pseudomonas aeruginosa, streptococcus viridans, peptostreptococcus species, and fusobacterium species. surgical debridement and antibiotic therapy achieved ...200415580975
infective endocarditis in hypertrophic cardiomyopathy--mural and aortic valve vegetations: a case report.hypertrophic cardiomyopathy (hcm) is infrequently complicated by infective endocarditis (ie). the authors report the case of a 46-year-old woman developing ie in asymptomatic hcm. blood cultures were positive for streptococcus viridans. echocardiography demonstrated: 1) a mobile (1.2 x 1 cm2) vegetation attached to the septal endocardium at the site of contact between the mitral valve leaflet and the hypertrophic septum; 2) two large (2.7 x 1.7 cm2 and 1.6 x 1.1 cm2) vegetations at ncc and rcc r ...200616696400
streptococcal pd peritonitis--a 10-year review of one centre's experience.detailed descriptive studies focusing on streptococcal peritonitis in patients on peritoneal dialysis are lacking. most of the current information is available through isolated case reports.200617005523
navel piercing as a cause for streptococcus viridans endocarditis: case report, review of the literature and implications for antibiotic prophylaxis.we describe a case of streptococcus viridans endocarditis in a 17-year-old female with congenital ventricular septal defect, that followed shortly after performing naval piercing. she was eventually treated with penicillin with complete recovery. we review other cases from the literature of piercing-associated endocarditis, and suggest that individuals at particularly high risk might be considered for antibiotic prophylaxis prior to such procedures.200717077628
[streptococcus viridans emboligen endocarditis]. 200617080574
corneal staining after treatment with topical tetracycline.the purpose of this paper is to report a case of corneal staining after treatment with topical tetracycline.200617102677
bartonella henselae endocarditis in a child.14-year-old white male with a past medical history of congenital bicuspid aortic valve, streptococcus viridans endocarditis, and pulmonary valve homograft presented with culture-negative endocarditis. molecular studies identified the causative organism as bartonella henselae and subsequent serologic studies supported this diagnosis. this rare cause of endocarditis may be under recognized in children. bartonella henselae endocarditis should be considered in all children with culture-negative endo ...200617111290
pleural space sterilization using gentian violet irrigation for postbullectomy empyema associated with artificial material infection.postoperative empyema associated with artificial material infection involves several treatment problems. we report the successful treatment of a case of post-bullectomy empyema with a small alveolar fistula that was associated with artificial material infection by streptococcus viridans. in this case, complete empyema space sterilization was obtained by tube drainage and daily pleural irrigation using 0.1% gentian violet solution. this treatment circumvented the need for invasive surgery, includ ...200617144605
antimicrobial prophylaxis in oral surgery and dental procedures.transient bacteraemia is a known risk factor following oral surgery and invasive dental procedures in patients with altered immune system response and those with a susceptible site of infection (patients with heart valve prostheses or recent joint replacements, etc.) the most commonly isolated aerobic bacteria in postoperative bacteraemia are streptococcus viridans. however, other periodontal pathogenic anaerobic bacteria are found in up to 64% in blood cultures (mixed bacteria or anaerobic bact ...200717195828
role of ciprofloxacin in patients with cholestasis after endoscopic retrograde cholangiopancreatography.to determine the role of ciprofloxacin in reducing cholangitis in cholestatic patients with adequate biliary drainage after endoscopic retrograde cholangiopancreatography (ercp).200717226908
parapharyngeal abscess in a patient receiving etanercept.to report a case of parapharyngeal abscess associated with streptococcus viridans in a patient with rheumatoid arthritis receiving treatment with etanercept.200717227824
prevalence, duration and aetiology of bacteraemia following dental extractions.to investigate the prevalence, duration and aetiology of bacteraemia following dental extractions, analysing the factors affecting its development.200717241431
contribution of a pleural antigen assay (binax now) to the diagnosis of pneumococcal pneumonia.to determine whether the detection of pneumococcal antigen in pleural fluid augments conventional microbiological methods used for the etiologic diagnosis of pneumonia.200717317736
brain abscess due to streptococcus acidominimus: first case report.streptococcus acidominimus resembles streptococcus viridans, but they can now be differentiated by phenotypic studies. only a single previous case of pneumonia, pericarditis, and meningitis has been reported.200717320642
[the importance of dental-based treatment shown on the case report of a pontine abscess caused by streptococcus viridans].the treatment of infectious oral lesions is an important prophylactic procedure preceding immunsuppressive therapy. the case reported underlines the importance of this treatment by showing severe complications of an infective dental focus in an immunocompetent patient.200717401590
pyogenic liver abscess presenting after malignant polypectomy.streptococcus bovis bacteremia has been linked to the presence of occult colon cancer since 1977. we present a case of pyogenic liver abscess and bacteremia with a different streptococcus viridans 1 week after colonic adenocarcinoma was removed via polypectomy, discuss the likely etiology and review whether there is evidence to support looking for colon cancer in patients who present similarly but have not already undergone screening.200717406839
pituitary abscess in a pregnant woman.pituitary abscess is a rare and potentially lethal condition. pituitary abscess in a pregnant woman has not been previously described. a 38-year-old pregnant woman (34 weeks gestation) with a pituitary mass complained of a progressive headache and sudden visual impairment. she was afebrile and had no inflammatory symptoms on admission. on mri, the preoperative diagnosis was pituitary adenoma with sphenoid sinusitis. she underwent an uncomplicated transsphenoidal procedure for removal of the pitu ...200717420130
in-vitro profile of a new beta-lactam, ceftobiprole, with activity against methicillin-resistant staphylococcus aureus.ceftobiprole is a novel, broad-spectrum cephalosporin with in-vitro activity against common gram-positive and gram-negative organisms. it forms a stable inhibitory complex with staphylococcus aureus penicillin-binding protein (pbp) 2' (2a), resulting in enhanced activity against methicillin-resistant s. aureus (mrsa). in recent studies of methicillin-susceptible s. aureus, the ceftobiprole mic(90) value was most frequently < or =1.0 mg/l (mic range < or =0.25-1.0 mg/l). for mrsa, mic(90) values ...200717488372
[cutaneous adverse reaction to bio-alcamid implant].in the last years new and numerous materials for the correction of defects and wrinkles have been developed. one of these materials is bio-alcamid, a non reabsorbable gel polymer constituted by meshes of poly-alkyl-imide, without known adverse effects. we report a 34-year-old woman that had bio-alcamid implants for acne scars and several months after presented nodular lesions together with a painful inflammatory nodule. the nodule was drained and culture of the purulent material yielded streptoc ...200717506960
[microbiocenosis of stomach in children with chronic gastritis].qualitative and quantitative composition of gastric microflora has been studied in 30 children with chronic gastritis. bacteriological study of gastric biopsies and parietal mucus in 10 children with chronic gastritis not associated with helicobacter pylori more frequently revealed conditionally pathogenic bacteria--escherichia coli, staphylococcus aureus, streptococcus viridans, s. pyogenes (group a), peptostreptococcus anaerobius, p. prevotii and their associations. in 20 studied patients with ...200717523484
odontogenic bacteria in periodontal disease and resistance patterns to common antibiotics used as treatment and prophylaxis in odontology in spain.resistance in streptococci or gram-negative bacteria is associated with antibiotic consumption. scarce information exists on the antibiotic susceptibility of bacterial isolates from patients with periodontitis in countries with high antibiotic consumption, as this is an area in which microbiological testing is not performed in daily practice. the present study was undertaken to explore the susceptibility of bacterial isolates in periodontitis to antibiotics prescribed in odontology in spain as t ...200717530037
acute suppurative thyroiditis with deep neck infection: a case report.thyroid gland suppuration is a rare condition with nonspecific features. for this reason, diagnosis is often delayed, which may lead to a life-threatening situation. causative agents are often gram-positive bacteria, such as staphylococcus aureus and streptococcus pneumoniae. with appropriate antibiotics and drainage of the abscess, the prognosis is usually excellent. herein, we describe a unique case of acute suppurative thyroiditis in an adult male presenting with nonspecific sore throat after ...200717542677
streptococcus viridans has a leading role in rhinosinusitis complications.we sought to determine whether the bacteria in complicated rhinosinusitis were the typical acute rhinosinusitis triad of streptococcus pneumoniae, haemophilus influenzae, and moraxella catarrhalis. we also compared the difference in yield between infection sites and blood cultures.200717561768
vaginal cuff endometriosis resulting in a fistula between the vagina and abdominal cavity and presenting as peritonitis: a case report.the specimen from a vaginal cuff fistula between the vagina and abdominal cavity revealed endometriosis. culture of the fluid revealed streptococcus viridans.200717583250
[proceedings could be dangerous! an endocarditis clinical case].introduction: the authors describe a clinical case of infective endocarditis after a transrectal proceeding. following that some questions were made: which are the updated guidelines? which are the risk proceedings? the case: a 55-year-old man, with aortic/pulmonary vavuloplasties and haemorrhoids developed an infectious endocarditis, by streptococcus viridans, after a rigid proctosigmoidoscopy. following the endocarditis the patient suffered a pleuritis and pneumonia, those health problems just ...200717624287
pylephlebitis and mesenteric thrombophlebitis in sigmoid diverticulitis: medical approach, delayed surgery.a 57-year-old woman presented with fever, vomiting and arthralgia, with a history of rheumatoid arthritis. laboratory tests showed leucocytes, anaemia and elevation of c-reactive-protein (crp). blood cultures were positive for gram negative bacteria and streptococcus viridans. patient underwent abdominal computed tomography (ct) scan revealing sigmoid acute diverticulitis with peridiverticular abscesses and thrombophlebitis within the inferior mesenteric and portal veins. she started antibiotic ...200717644055
infective endocarditis associated with spondylodiscitis and frequent secondary epidural abscess.although many patients with ie complain of joint, muscle, and back pain, infections at these sights are rare. indeed, in patients with back pain and endocarditis, less than 4% actually demonstrate spondylodiscitis.200817720227
[lobar cerebral hemorrhage due to infectious endocarditis with aortic root abscess due to streptococcus viridans]. 200717853971
subacute streptococcus viridans septicemia: cured by the excision of an arteriovenous aneurysm of the external iliac artery and vein. 193517856677
streptococcus viridans septicemia from vegetations in femoral arteriovenous aneurysm: report of a case cured by surgical excision of the aneurysm. 194617858811
herpetic tracheitis and polybacterial pneumonia in an immunocompetent young man is herpes tracheitis involved in the pathogenesis of bacterial pneumonia?we report a 28-year-old immunocompetent man that after a course of corticoids developed a severe pneumonia in right lower lobe. a fiber-optic bronchoscopy showed a white membrane easily bloody on contact with bronchoscopy tube at trachea level. the tracheal biopsy showed typical cytopathological lesions of herpes simplex virus (hsv) and polymerase chain reaction was positive for type 1 hsv. streptococcus viridans and fusobacterium necrophorum grew in right bronchial secretion cultures. clinical ...200818054276
streptococcus viridans endarteritis of an arteriovenous aneurysm cured by penicillin and surgical excision. 194918109453
streptomycin treatment of bacterial endocarditis due to streptococcus viridans; report of two cases. 194918128799
the role of streptococcus viridans in the causation of pneumonia. 194918147365
comparison of the bactec blood culture system versus conventional methods for culture of normally sterile body fluids.this study compared the bactec blood culture system (becton dickinson diagnostic instrument systems, sparks, md) with conventional culture methods for recovery and time to detection of significant isolates from normally sterile body fluids. a total of 412 specimens were included in the study. half of the specimens were inoculated directly into the automated blood culture system. the remaining specimens were centrifuged at 3000 rpm for 10 min and were inoculated onto conventional media. clinicall ...200718165209
prevalence of bacteraemia following third molar surgery.to investigate the prevalence and aetiology of bacteraemia following third molar extractions (b-tme), analysing the factors affecting its development.200818173454
characteristics of streptococcus bovis endocarditis and its differences with streptococcus viridans endocarditis.the purpose of this study was to evaluate the characteristics of infective endocarditis (ie) caused by s. bovis and compare them to those caused by streptococci of the viridans group (svg). a prospective study was undertaken considering 55 consecutive cases of ie due to s. bovis and 41 to svg over 18 years. the study was divided into two periods (1988-1996 and 1997-2005). s. bovis caused 24% of the ie in our centre and constituted the main aetiology for this disease, showing an increase of 358% ...200818183440
treatment of primary isolated shoulder sepsis in the adult patient.isolated shoulder sepsis is an uncommon clinical problem with little information in the literature on causative organisms and potential sequelae. we examined the organisms involved, surgical treatments, antibiotic treatments rendered, and complications in these cases. we retrospectively reviewed the records of 19 adult patients (19 shoulders) who underwent operative treatment of isolated shoulder sepsis from 1996 to 2005. patient age, gender, laboratory studies, previous treatment, surgical proc ...200818347887
microbial contamination in burn patients undergoing urgent intubation as part of their early airway management.inhalation injuries occur in approximately one third of all major burns and account for a significant number of deaths in burn patients each year. previous studies have examined ventilator-associated pneumonia in patients with inhalation injury, but no study to date has evaluated the incidence of bacterial contamination of the airways on admission in patients with inhalation injuries. because pulmonary complications have been found to cause or directly contribute to mortality in as high as 77% o ...200818354286
novel technique of corneal biopsy by using a femtosecond laser in infectious ulcers.to describe femtosecond laser-assisted corneal biopsy and its use in assessing the causative organisms in 2 cases of infectious corneal ulcers.200818362669
a retrospective analysis of isolates from patients with vaginitis in a private greek obstetric/gynecological hospital (2003-2006).vaginitis is a common cause of complaints in women in various parts of the world. through our literature search, we identified noteworthy differences in the etiology of vaginitis based on the geographic location. this study was conducted to describe microbial etiology in a population of symptomatic women with vaginitis in greece.200818376352
endovascular treatment of primary infectious aneurysm in childhood: a case report.infectious aneurysms constitute 4% of all intracranial aneurysms. the microorganisms responsible are most commonly streptococcus viridans, staphylococcus aureus and combined bacterial infections. nonetheless, cases with no reproduction in their cultures are rather frequent. a 6-year-old patient admitted with complaints of sudden headache, nausea, vomiting and high temperature. intracerebral hematoma and saccular aneurysm located at the distal posterior cerebral artery were diagnosed as a result ...200818382978
relationship of vaginal microflora to prom, pprom and the risk of early-onset neonatal sepsis.infections are among the most frequent causes of premature delivery and premature discharges of amniotic fluid. the vaginal ecosystem significantly contributes to the development of these conditions. premature rupture of membranes (prom) and preterm premature rupture of membranes (pprom) are associated with an increased risk of intra-amniotic infection. the intra-amniotic infection negatively affects perinatal morbidity and mortality of newborns.200818404134
infective endocarditis from streptococcus viridans associated with colonic carcinoma: a case report.streptococcal bacteremia is an uncommon presentation for colorectal malignancy, yet most physicians would probably be aware of the association between streptococcus bovis infection and such malignancy; however, many physicians may be unaware that other streptococcal species are also associated with colon and rectal cancers. we describe a 62-year-old male with adenocarcinoma of the sigmoid colon with the presentation of infective endocarditis due to infection by streptococcus viridans, and we als ...200818435648
[left-sided native valve endocarditis by coagulase-negative staphylococci: an emerging disease].to describe the epidemiological, clinical, and prognostic characteristics of patients with left-sided native valve endocarditis (lnve) caused by coagulase-negative staphylococci (cons).200818479642
[experience with bronchomunal used in the combined treatment of patients with bronchial asthma and chronic obstructive pulmonary disease].the paper presents the results of treatment in 30 patients aged 16-59 years who have bronchial asthma and chronic obstructive pulmonary disease, by using a bacterial vaccine (bronchomunal) containing antigens of opportunistic bacteria: streptococcus pneumoniae, haemophilus influenzae, klebsiella pneumoniae, staphylococcus aureus, streptococcus viridans, streptococcus piogenes, moraxella catarrhalis. immunotherapy with the vaccine had good and excellent effects in 73.33 of cases; the mean duratio ...200818509908
serum procalcitonin has the potential to identify staphylococcus aureus endocarditis.the role of procalcitonin (pct) in the diagnosis of infective endocarditis (ie) remains unclear. the aim of our study was to test the accuracy of pct in the early diagnosis of ie and analyse if the accuracy of pct is dependent on the type of pathogen causing ie. we carried out a prospective analysis of hospitalised patients referred for transthoracic echocardiography to search for an ie. the plasma pct value was measured at the time of echocardiography. the diagnosis of ie was made using the mod ...200818521635
tonsillar microbial flora: a comparison of infected and non-infected tonsils.the main objective of this study was to find out the most common organism affecting the tonsils in recurrent tonsillitis.200618603861
infective endocarditis of the tricuspid valve: report of a case due to streptococcus viridans. 194718610058
a novel observation of pubic osteomyelitis due to streptococcus viridans after dental extraction: a case report.pubic osteomyelitis should be suspected in athletic individuals with sudden groin pain, painful restriction of hip movements and fever. it is an infrequent and confusing disorder, which is often heralded by atypical gait disturbance and diffuse pain in the pelvic girdle. the most common pathogen is staphylococcus aureus but, on occasions, efforts to identify infectious agents sometimes prove negative. pubic osteomyelitis due to streptococcus viridans has not been reported previously in the liter ...200818671843
left ventricular pseudoaneurysm with infective pericarditis: a rare cause of intractable hemoptysis.a 52-year-old man with diabetes presented with recurrent, massive hemoptysis following pericardiectomy for pyopericardium secondary to streptococcus viridans infection. chest radiograph and bronchoscopic examinations revealed no bronchial cause. computed tomography of the chest and echocardiography showed a pseudoaneurysm of the left ventricle. surgical exploration confirmed that the pseudoaneurysm communicated with the left lung parenchyma and was the cause of recurrent intractable hemoptysis.200818718950
infective endocarditis in children: native valve preservation is frequently possible despite advanced clinical disease.recent reports describing surgical experiences with childhood ie are sparse. we sought to determine patient-specific characteristics and their impact on outcome for children with infective endocarditis (ie) undergoing surgical intervention. we therefore reviewed all cases of culture-proven ie referred for surgical intervention at our institution over the last three decades.200918829342
fungal ascending aortic aneurysm after cardiac surgery.a 52-year-old diabetic male was admitted due to 1-month history of fever, fatigue, and mild shortness of breath. three months prior to admission, he had undergone aortic valve replacement, with a prosthetic one, because of streptococcus viridans endocarditis complicated by severe aortic regurgitation. transesophageal echocardiogram revealed prosthetic valve endocarditis with dehiscence of the aortic valve and an abscess cavity extending from the aortic root into the ascending aorta. blood cultur ...200919054035
comparison of swabs versus suction traps for endoscopically guided sinus cultures.knowledge of the causative organism(s) in bacterial rhinosinusitis has become the cornerstone of adequate medical and surgical management. little uniformity and data exist for the best method of obtaining sinus cultures. most otolaryngologists tend to use the nasal swab for obtaining transnasal middle meatal cultures. a prospective study was carried out to compare the effectiveness of standard nasal swabs versus suction traps in obtaining bacterial isolates under endoscopic guidance.200819128610
bacteriology of postradiotherapy chronic rhinosinusitis in nasopharyngeal carcinoma patients and chronic rhinosinusitis.the purpose of this study was to investigate and compare the bacteriology of postradiotherapy chronic rhinosinusitis (postrt-crs) and chronic rhinosinusitis (crs) by evaluating the aspiration materials of the maxillary sinus of patients with postrt-crs and patients with crs. we collected the secretions of the maxillary sinus from 30 nasopharyngeal carcinoma patients with postrt-crs and 30 patients with crs for aerobe/facultative anaerobe bacteria culture. the most common isolates in the postrt-c ...200919189113
kissing ulcer of the aortic wall in a patient with aortic valve endocarditis.in patients with aortic valve endocarditis, lesion of the mitral valve leaflets caused by jet strike or vegetation touch (kissing) is a well-described complication. we present a case of infectious aortic ulcer caused by aortic valve vegetation kissing. a 72-year-old woman who underwent operation for streptococcus viridans aortic valve endocarditis presented with a "kissing ulcer" in the aortic wall disclosed by intraoperative transesophageal echocardiography. the aortic valve was replaced by a b ...200919203860
fatal streptococcus viridans (s. oralis) aortic prosthetic valve endocarditis (pve) with paravalvular abscesses related to steroids. 200919254635
late recurrence of pulmonic valve endocarditis in an adult patient with ventricular septal defect: a case report.a 54-year-old female patient with a congenital ventricular septal defect (vsd) was admitted to the authors' hospital for an investigation of mild fever of four months' duration. her history revealed pulmonary valve endocarditis contracted 18 years previously. echocardiography revealed an echogenic mobile mass on the pulmonic valve that caused mild regurgitation, while blood cultures were positive for streptococcus viridans. the patient was administered ceftriaxone and gentamycin, and had an unev ...200919455891
[clinical analysis of 120 cases of infective endocarditis].to improve the diagnosis and treatment of infective endocarditis (ie) by exploring its causes, pathogenic microorganism and clinical characteristics.200919484975
[in vitro activity of daptomycin and other antimicrobial agents against 499 strains of gram-positive cocci causing bloodstream infection].to evaluate the in vitro activity of daptomycin, vancomycin, teicoplanin, tigecycline, ceftobiprole and linezolid against 499 strains of blood-isolated gram-positive cocci.200919576091
the study of prevalence and antimicrobial susceptibility of tracheal bacterial strains isolated from pediatric patients.the aim of this study was to investigate the prevalence and antimicrobial susceptibility of bacterial strains isolated from tracheal specimens obtained from pediatric patients admitted to a major children hospital in tehran, in 2007. tracheal specimens were cultured on the appropriate bacteriological media. bacterial isolates were identified by standard biochemical and serological tests. antimicrobial susceptibility testing was performed according to clinical and laboratory standards institute ( ...200919579988
stentless bioprosthesis provided excellent hemodynamic performance in a military scuba diver with infective endocarditis.infective endocarditis is a diagnostic and therapeutic challenge that ultimately requires surgical intervention in 20% of all cases. surgical treatment of active infective endocarditis requires not only hemodynamic repair, but also special emphasis on the eradiation of the infectious focus to prevent recurrence. this goal can be achieved by the combination of aggressive debridement of infective tissue and appropriate and adequate antibiotic treatment. we report a case of streptococcus viridans i ...200919685851
incidence and clinical relevance of bacterial contamination in preservation solution for liver transplantation.postoperative infection is considered one of the most important causes of morbidity and mortality after liver transplantation. we prospectively studied the incidence and significance of infections in preservation solutions for liver transplantation.200919715863
bacteriology of external ocular infections in aba, south eastern nigeria.bacteria are microbial agents that frequently cause infections of the eye and possible loss of vision.200919780761
bacterial sepsis after prostate biopsy--a new perspective.to determine the incidence of sepsis following transrectal ultrasound (trus)-guided prostate biopsy at our center.200919815258
safety assessment of probiora3, a probiotic mouthwash: subchronic toxicity study in rats.streptococcus viridans are commensal bacteria that constitute a significant portion of the resident oral microflora. the objective of the present study is to investigate adverse effects, if any, of a blend of 3 natural strains, streptococcus uberis kj2, streptococcus oralis kj3, and streptococcus rattus jh145 (probiotic mouthwash, probiora(3)). the blend is administered to rats orally once daily (5 days per week) at doses of 0, 10(6), or 10(9) colony-forming units of each strain for 14 weeks. no ...200919815843
glomerular lesions of subacute bacterial endocarditis.1. in most cases of chronic or subacute bacterial endocarditis due to the endocarditis coccus (streptococcus viridans), there exists a distinctive pathological lesion in some of the glomeruli due to bacterial emboli. 2. the salient features of the pathological picture are first, the involvement of one or more loops of a variable number of glomeruli; secondly, the absence of any visible disease in the uninvolved glomeruli and in the uninvolved portions of affected glomeruli; and thirdly, the asso ...191219867526
experimental focalized myocardial lesions produced with streptococcus mitis.1. by the intravenous injection into rabbits of streptococcus mitis, we have produced focalized myocardial lesions which are identical with those caused by the injection of streptococcus rheumaticus, and with those produced by bracht and wächter with streptococcus viridans. 2. the lesions differ from those which we produced by injections of streptococci from the chicago epidemic of sore throat (epidemic streptococcus). 3. the lesions are not identical with aschoff bodies and are easily different ...191419867783
complement fixation tests in chronic infective deforming arthritis and arthritis deformans.1. from a comparison of the results with arthritis deformans recorded in tables iii, iv, and vi, and with the control cases recorded in table vii, one is justified in concluding that streptococcus viridans is an infectious agent and excites the production of a complement-fixing substance (fixateur) in the organism in cases of arthritis deformans, and, therefore, streptococcus viridans is the probable causative agent of the disease in many cases of arthritis deformans. probably 40 per cent. and m ...191419867802
concerning a polyvalent antigen for the complement fixation test for streptococcus viridans infection.1. streptococcus viridans is of extremely low virulence for white mice and rabbits. 2. the serum of rabbits, after a series of intravenous injections of dead or living streptococcus viridans, is poor in complement fixative substance (fixateur of besredka) for streptococcus viridans. 3. antigens prepared from several strains of streptococcus viridans are relatively poor in fixable substance. 4. the technique of complement fixation tests for infection with streptococcus viridans is so laborious an ...191419867803
the formation of methemoglobin by streptococcus viridans.cultures of streptococcus viridans when brought into contact with red blood corpuscles have the power of transforming oxyhemoglobin into methemoglobin. the reaction occurs only in the presence of living streptococci when they are able to carry on their metabolic activities. the intensity of the reaction runs roughly parallel with the period of growth and multiplication of the bacteria and gradually diminishes and disappears as growth ceases. there is no apparent relation between the activity of ...191619868043
the localization of streptococcus viridans.the results of our experiments do not substantiate in full the theory of the power of selective action of streptococcus viridans. a few strains showed a remarkable constancy in location and type of lesion, but these strains were greatly in the minority. the location of the lesions in animals seemed to bear no relation to the origin of the organism or to the lesions produced by it in the patient from which the strain was obtained. streptococcus viridans, regardless of site of origin in the patien ...191819868195
studies on experimental pneumonia : iii. spontaneous pneumonia in monkeys.spontaneous pneumonia occurred to a considerable extent among stock monkeys at the army medical school. this pneumonia occurred chiefly in the form of an epidemic outbreak shortly after the arrival of a large shipment of monkeys, and was shown to be due in large part to transmission of infection from monkey to monkey, either directly or indirectly. that spread of the epidemic was facilitated by overcrowding was indicated by the fact that in a subsequent shipment of monkeys, which were kept in pa ...192019868412
studies on the pneumococcus : ii. dissolution of pneumococci at varying hydrogen ion concentrations. effect of temperature, previous killing of the organisms, and fresh human serum on the phenomenon. behavior of other organisms.suspensions of living pneumococci in approximately isotonic standard solutions and in approximately isotonic bouillon with ph varying from about 4.0 to 8.0 after incubation show dissolution of organisms in those solutions having a ph higher than about 5.0. dissolution is most marked at a critical range of about ph 5.0 to 7.0. some dissolution also takes place toward the more alkaline end of the scale. no dissolution occurs at the most acid end of the scale. dissolution in the standard solutions ...192219868639
studies on the pneumococcus : iii. dissolution of pneumococci in pneumonic cellular material at varying hydrogen ion concentrations. resistance of certain other organisms to dissolution.pneumococci of types i, ii, and iii undergo dissolution when mixed with cellular material from the pneumonic lung at a ph of 6.95 and 5.5, but not at a ph of 4.5. an enzyme derived from the bacteria themselves or from the cellular material may be the cause of the dissolution. streptococcus hoemolyticus and streptococcus viridans do not undergo dissolution under similar experimental conditions.192219868640
the action of sodium salicylate upon the formation of immune bodies.1. rabbits treated with sodium salicylate in daily doses of from 0.16 to 0.2 gm. per kilo of body weight and at the same time immunized with intravenous injections of streptococcus viridans, both living and in the form of vaccines, and also with washed sheep red blood cells, showed diminished complement-fixing antibodies, agglutinins, and hemolysins when compared with controls similarly immunized. 2. if the antigens were treated with sodium salicylate in vitro and subsequently injected intraveno ...192219868706
studies on the enzymes of pneumococcus : iv. bacteriolytic enzyme.1. pneumococci possess an active intracellular enzyme which causes lysis of heat-killed pneumococci of the same and heterologous types and to a less degree of a closely related organism, streptococcus viridans. 2. the optimum reaction for lysis lies between ph 6 and 8. 3. the bacteriolytic action is proportional to the concentration of the enzyme. 4. heating the enzyme for 30 minutes at 60 degrees c. destroys its activity. 5. the possible relation of the enzyme to autolysis is discussed.192319868783
studies on bacterial nutrition : iv. effect of plant tissue upon growth of pneumococcus and streptococcus.in previous papers it has been shown that unheated plant tissue, in the form of potato, contains the two factors necessary for the growth of organisms of the hemoglobinophilic group. further studies (5) confirmed these findings and showed that yellow and white turnip, carrot, beet, parsnip, and sweet potato can replace blood in the cultivation of bacillus influenzae. in the present paper it has been shown that vegetable tissues also greatly facilitate and stimulate the growth of other organisms ...192319868784
oxidase reaction of various groups of bacteria.1. a simple technique is described for studying the oxidase action of bacteria by means of the oxidation of p-aminoleucomalachite green. 2. it is shown that pneumococci under aerobic conditions produced an oxidase when grown on suitable medium. the sera of any of seven different animal species constitute such a medium, the degree of oxidation by the pneumococcus depending upon the animal from which the serum was taken-rat, guinea pig, rabbit, horse, man, cat, and chicken in order of diminishing ...192319868791
the immunological relationships of streptococcus viridans and certain of its chemical fractions : i. serological reactions obtained with antibacterial sera.1. agglutination and precipitation by the specific substance of streptococcus viridans are parallel phenomena. separate specific substances have been extracted from strains which are distinct by ordinary serological tests. preliminary chemical examination indicates that the specific substances may be complex carbohydrates. 2. a close relationship between nucleoproteins from different strains of streptococcus viridans is suggested by the existence of a certain amount of cross-precipitation and a ...192519869060
the immunological relationships of streptococcus viridans and certain of its chemical fractions : ii. serological reactions obtained with antinucleoprotein sera.1. the immunological behavior of two cell constituents of nonhemolytic streptococci has been studied, (a) one, the so called nucleoprotein, is relatively non-specific and gives rise to an antibody which shows group reactions with nucleoproteins of related species. (b) the other is non-protein by qualitative chemical tests. preliminary chemical examination has indicated that it may be a carbohydrate. although this substance is highly reactive with the specific antibodies produced by the intact ba ...192519869061
studies concerning the relationship between pneumococci and streptococci.morgenroth and his collaborators grew pneumococci in a medium containing optochin and derived variant forms of bacteria therefrom which were considered to be streptococci of the viridans group. we have repeated these experiments and have also derived variant forms. these atypical races, however, we have found to be identical with the r form of pneumococci which have been obtained by various other methods. that these r cultures are still pneumococci and do not belong in the streptococcus viridans ...192719869229
a comparative study of smooth and rough pneumococcus colonies.the characteristic appearances exhibited by the surface colonies of both s and r pneumococci in 24 and 48 hour cultures upon rabbit blood agar have been reviewed. emphasis has been laid upon the behavior and structure of the colonies formed by r pneumococci, their frequent similarity to the colonies formed by certain strains of streptococcus viridans, and their failure to undergo rapid autolysis in the first 48-96 hours, a phenomenon which is highly characteristic of the s pneumococcus colonies. ...192719869372
the conversion of hemolytic streptococci to non-hemolytic forms.from one strain of hemolytic streptococcus three forms were isolated, which produced three different degrees of hemolysis on the surface of blood agar in the presence of oxygen. the original form was moderately hemolytic; the glossy variant was more hemolytic than the original form; and the third form, obtained by passing the original culture through mice, was non-hemolytic. under anaerobic conditions all three forms were hemolytic. the non-hemolytic passage culture, in the presence of an ample ...192819869500
bacteriology of the blood and joints in rheumatic fever.1. during the spring of 1928, 29 patients with acute rheumatic fever were subjected to blood cultures, of whom 9, or 31 per cent, yielded a streptococcus. during the spring of 1929, 31 patients with acute rheumatic fever were studied by blood cultures, of whom 26, or 83.9 per cent, yielded a streptococcus. the higher percentage of positive cultures in the 1929 series appears to have been due to improved cultural methods. 2. of the 35 strains of streptococci recovered from blood cultures, 33 have ...192919869651
streptococci in infectious (atrophic) arthritis and rheumatic fever.the question of the relationship of streptococci to the etiology of infectious arthritis and of rheumatic fever is of the utmost importance. if a streptococcus or group of streptococci could be shown to be associated see pdf for structure with either disease, some form of specific treatment might be available. the possibility of primary streptococcic infection as the cause of rheumatic fever, and, to a less extent, of acute infectious arthritis would seem to be a reasonable conjecture because of ...193019869811
carbohydrates adsorbed on colloids as antigens.evidence is here given that polysaccharides can be rendered antigenic by haptogenic adsorption upon a colloid carrier. the polysaccharides studied were those of b. anthracis, the meningococcus, streptococcus viridans (bargen), b. proteus, s. morgani, b. dysenteriae, both the shiga and hiss types, and the pneumococci. with the polysaccharide of type iii pneumococci, we have been unable in 6 weeks to produce any detectable protective antibodies, but we were able to produce anticarbohydrate antibod ...193219869994
immunological reactions between dextran polysaccharide and some bacterial antisera.dextran, the synthetic polysaccharide produced by leuconostoc mesenterioides from saccharose, reacts immunologically with antisera from pneumococci, some of the sahnonella and some of the types of streptococcus viridans (bargen). this immunological relationship is independent of the specific antipolysaccharide antibodies of these sera, suggesting the existence of a distinct antibody produced by an active group of the specific bacterial polysaccharide, which is similar or identical to the active ...193219869995
corneal reactions to bacterium granulosis and other microorganisms.the conclusions which may be drawn from the results of the experiments here presented are: 1. the cornea of the rabbit is highly sensitive to the action of various injected bacteria. the lesions vary from insignificant, transient changes to severe, destructive panophthalmitis, with fine gradations from the mildest to the violent form of inflammation. moreover, animals that receive the same organisms show like changes. 2. the varying degree of inflammatory reaction is related to the pathogenicity ...193219870032
streptococcus viridans osteomyelitis and endocarditis following dental treatment: a case report.vertebral osteomyelitis is an uncommon complication of infective endocarditis with the organism streptococcus viridans being a rare cause of the condition. this case highlights an unusual presentation of streptococcus viridans associated with infective endocarditis and pyogenic osteomyelitis in a patient following a dental procedure.200919918551
retraction: a novel observation of pubic osteomyelitis due to streptococcus viridans after dental extraction: a case report. 200919946539
syphilitic aortic endocarditis and superimposed bacterial (streptococcus viridans) endocarditis. 193219970001
experimental thrombotic bacterial (streptococcus viridans) endocarditis: i. its production and incidence in the rabbit. 194419970747
subacute bacterial (streptococcus viridans) pulmonary endarteritis. 194519970823
[problem of infections at ent department of poznan university of medical sciences based on the material from 2006-2007 years].infections at ent wards constitute an essential clinical, organizational and economic issue.200919999755
severe peritonitis due to streptococcus viridans following adjustable gastric banding.late postoperative intra-abdominal infections after laparoscopic gastric banding are extremely rare and may or may not be associated with the device following uncomplicated adjustable gastric banding procedures. the spectrum of pathogens associated with intra-abdominal infections is diverse and depends on the origin of the infection. streptococci is a significant cause of peritoneal dialysis peritonitis (6% to 16% of the cases), and s. viridans is reported to account for up to 93% of streptococc ...201020012705
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