Gene/Protein Disease Symptom Drug Enzyme Compound
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We studied all patients with community-acquired pneumonia who were admitted to our 800-bed adult acute care hospital from 1 November 1981 to 15 March 1987. The 719 patients had a mean age of 63.2 years; 18% were admitted from nursing homes, and 18% required ventilatory assistance as part of the therapy for pneumonia. Patients with nursing home-acquired pneumonia were significantly older; had a higher mortality (40% vs. 17%); were more likely to be admitted in January; were less likely to complain of cough, fever, anorexia, chills, headache, nausea, sore throat, myalgia, or arthralgia; and were more likely to be confused than those admitted from the community. Pneumonia of unknown etiology and aspiration pneumonia were more common and Mycoplasma pneumoniae infection less common among those with nursing home-acquired pneumonia. Streptococcus pneumoniae accounted for 58% of the 48 cases of bacteremia. None of the bacteremic patients received antibiotics before admission, compared with 34% of the nonbacteremic patients. Aerobic gram-negative rod bacteremia was not more frequent among nursing home patients than among those from the community. The overall mortality was 21% (8.5% for those less than 60 years of age and 28.6% for those greater than 60 years old). By multivariate analysis the following variables were significant predictors of mortality: number of lobes involved by the pneumonic process, number of antibiotics used to treat the pneumonia, age, admission from a nursing home, ventilatory support, and the number of complications that occurred while the patient was in the hospital.
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PMID:Community-acquired pneumonia requiring hospitalization: 5-year prospective study. 277 65

Antibiotics of tetracycline and macrolide groups are mainly used in treatment of Mycoplasma pneumonia. In this study, acetylspiramycin (ASPM), an antibiotic of macrolide group, was given to 15 cases of Mycoplasma pneumoniae who visited this institute during the period from January, 1980 to March, 1981, and its clinical effects and side effects were investigated. The therapeutic effects were evaluated by days to the normal body temperature, to improvement in cough and to improvement in X-ray findings. The increase in serum antibody value was adopted as the diagnostic index of Mycoplasma infection. The patients who entered into this study were 7 males and 8 females, ranged from 19 to 60 years of age with an average of 36.3 years. The daily dose of ASPM was 600 to 1,200 mg (potency), and the mean administration period was 18.1 days. The results obtained were as follows. 1. The temperature fell to the normal within 2 to 7 days. 2. Cough disappeared in 2 days at shortest and in 55 days at longest. The mean period of cough disappearance was 14.5 days. 3. In 10 cases who could be followed up, shadows in X-ray films disappeared in 3 days at shortest and in 40 days at longest. The mean period to shadow disappearance was 18.6 days. 4. As regards clinical effects, marked improvement was obtained in 2 cases, improvement in 9, slight improvement in 4, and no change in 0 (improvement rate: 73.3%). 5. As a side effect, nausea was found in 1 case, but it was improved by discontinuance of administration.
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PMID:[Experience in treatment of Mycoplasma pneumoniae with acetylspiramycin]. 641 Jan

The experience with ofloxacin used for 10 years from 1986 to 1995 in the complex therapy of 208 patients with wound infection complicated in 51 patients (24.5 per cent) by respiratory tract infection such as purulent tracheobronchitis or pleuropneumonia was generalized. In 28 patients (13.5 per cent) persistent bacteriuria not susceptible to the routine drugs was stated. The clinical and bacteriological efficacies of ofloxacin in the group of the patients with noncomplicated purulent wounds of the soft tissues amounted to 85-91 and 74-80 per cent respectively. In the group of the patients with wound infection complicated by respiratory or urinary tract infection the clinical and bacteriological efficacies equaled 94-100 per cent. The appetite disorder, epigastric pain or nausea were rare. Only in 3 cases the adverse reactions required the treatment discontinuation. Despite the use of ofloxacin for many years, the susceptibility of the main causative agents of surgical infections to the drug remained high: Staphylococcus epidermidis 93.3 per cent, Staph.aureus 94.5 per cent, Pseudomonas aeruginosa 96.5 per cent, Escherichia coll 100 per cent, Proteus spp. 100 per cent, Enterobacter spp. 100 per cent, Acinetobacter spp. 82.3 per cent and Klebsiella spp. 88.8 per cent. The successive use of ofloxacin, at first intravenously for 3-5 days and then orally in the form of tablets for 3-5 days, in the treatment of 15 patients with wound infections of various genesis and localization subjected to osteoplastic reconstructive operations provided positive effects in all the cases and was economically advantageous.
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PMID:[Ten-year experience with the use of ofloxacin in the treatment of wound infection]. 900 92

The efficacy and safety of grepafloxacin in treating patients with community-acquired pneumonia (CAP) was assessed in an open-label, noncomparative study. Patients (N = 273) received grepafloxacin 600 mg QD for 10 days. A total of 237 patients (87%) completed the study. In assessable patients, the clinical success rate at follow-up (4 to 6 weeks after the last dose) was 89% (211/238 patients). In microbiologically assessable patients, the eradication rate at follow-up was 95% (86/91 isolates). Grepafloxacin was highly effective in the treatment of bacterial CAP caused by Streptococcus pneumoniae (irrespective of penicillin susceptibility), Haemophilus influenzae, Haemophilus parainfluenzae, Moraxella catarrhalis, and Staphylococcus aureus and in the therapy of atypical pneumonia caused by Mycoplasma pneumoniae and Legionella pneumophila. Grepafloxacin was well tolerated, with the most frequently reported drug-related adverse events being taste perversion and nausea. Grepafloxacin 600 mg QD for 10 days was highly effective and well tolerated in the treatment of patients with CAP.
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PMID:Efficacy and safety of grepafloxacin 600 mg daily for 10 days in patients with community-acquired pneumonia. 938 85

Community-acquired pneumonia (CAP) remains a common and serious illness with approximately 2-4 million cases reported annually. Management of CAP is therapeutically challenging due to the increasing prevalence of penicillin- and macrolide-resistant pneumococci and beta-lactamase producing Haemophilus influenzae, as well as the increased recognition of 'atypical' pathogens, such as Chlamydia pneumoniae and Mycoplasma pneumoniae, and the frequent need for empiric therapy. We aimed to evaluate the safety and efficacy of moxifloxacin in the treatment of patients with CAP. To do this we carried out a prospective, uncontrolled, non-blind, Phase III clinical trial, in 27 U.S. centers. Patients included in the study were over 18 years of age with signs and symptoms of CAP confirmed by evidence of a new or progressive infiltrate on chest radiograph. The intervention used was moxifloxacin 400 mg PO once daily for 10 days. Sputum samples were collected pretherapy for Gram stain and culture for typical organisms. Culture and serological testing for Chlamydia pneumoniae and Mycoplasma pneumoniae was also performed. Susceptibility to moxifloxacin was determined by disk diffusion and MIC. Clinical and bacteriological responses were determined at the end of therapy (0-6 days post-therapy), follow-up (14-35 days post-therapy) and overall (end of therapy plus follow-up). Analyses were performed on both valid for efficacy and intent-to-treat populations. The primary efficacy variable was overall clinical resolution. Of 254 patients enrolled in the Study, 196 patients were included in the efficacy analyses. The majority of patients were male (58%) and Caucasian (85%) with a mean age of 49 years (range: 18 to 85 years). Only 3% of patients were hospitalized pretherapy. The most common pretherapy organisms identified, by culture or serology, in the valid for efficacy population (i.e. 147 organisms among 116 patients), were: Chlamydia pneumoniae (n=63; 54%), Mycoplasma pneumoniae (n=29; 25%), Streptococcus pneumoniae (n=14; 12%) and Haemophilus influenzae (n=13; 10%). End of therapy, follow-up and overall clinical resolution rates for the valid for efficacy population were 94%, 93% and 93%, respectively. The 95% CI for the overall clinical resolution rate was 88.1%, 95.9%. The overall bacteriological response for patients diagnosed by culture or serological criteria, was 91% (95% CI=84%, 96%). For patients who only met serological criteria for infection, the overall bacteriological response was 94% (60/64). Bacterial response rates for the four most commonly isolated pathogens were: 89% (56/63) for C. pneumoniae, 93% (27/29) for M. pneumoniae, 93% (13/14) for S. pneumoniae and 85% (11/13) for H. influenzae. Drug-related adverse events were reported in 33% (85/254) of moxifloxacin-treated patients. Nausea (9%), diarrhea (6%) and dizziness (4%) were the most commonly reported adverse events. Atypical organisms were isolated in high frequency among patients with CAP. Moxifloxacin 400 mg once daily for 10 days was effective and well-tolerated in the treatment of these adult patients with CAP. Moxifloxacin offers an effective treatment alternative for CAP due to both typical and atypical bacterial pathogens.
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PMID:Efficacy and safety of ten day moxifloxacin 400 mg once daily in the treatment of patients with community-acquired pneumonia. Community Acquired Pneumonia Study Group. 1071 13

Gemifloxacin is a fluoroquinolone antibacterial agent which has an enhanced affinity for topoisomerase i.v.. It has potent activity against most Gram-positive bacteria, particularly Streptococcus pneumoniae. Gemifloxacin is over 30-fold more active than ciprofloxacin and 4- to 8-fold more active than moxifloxacin against this pathogen. Gemifloxacin has excellent activity against Haemophilus influenzae and Moraxella catarrhalis, and is unaffected by beta-lactamase production. It is generally 2-fold less active than ciprofloxacin against most Enterobacteriaceae. Atypical respiratory pathogens (Legionella, Mycoplasma and Chlamydia spp.) are highly susceptible to gemifloxacin. Preliminary results from phase II trials show that oral gemifloxacin 320 mg/day produced bacteriological responses of 94.7% in patients with acute exacerbations of chronic bronchitis and 95% of patients with uncomplicated urinary tract infections. Adverse events included nausea, abdominal pain, headache and mild rash in patients and healthy volunteers treated with gemifloxacin 320 mg/day. Gemifloxacin has a low potential for mild phototoxicity (comparable to that of ciprofloxacin).
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PMID:Gemifloxacin. 1085 45

Telithromycin is a new ketolide antimicrobial, specifically developed for the treatment of community-acquired respiratory tract infections. It has a wide spectrum of antibacterial activity against common respiratory pathogens including Streptococcus pneumoniae, Haemophilus influenzae, Moraxella catarrhalis and Streptococcus pyogenes. It also has activity against atypical pathogens, such as Chlamydia pneumoniae, Legionella pneumophila and Mycoplasma pneumoniae. Telithromycin maintains activity against beta-lactam and macrolide-resistant respiratory tract pathogens and does not appear to induce cross-resistance to other members of the macrolide-lincosamide-streptogramin (MLS) group of antimicrobials. It demonstrates bactericidal activity against S. pneumoniae and H. influenzae and has a prolonged concentration-dependent post-antibiotic effect (PAE) in vitro. The drug has favourable pharmacokinetics following oral administration. It is well absorbed, achieves good plasma levels and is highly concentrated in pulmonary tissues and white blood cells. In clinical trials, telithromycin given orally at a dose of 800 mg once daily for 5 - 10 days was as effective as comparator antimicrobials for the treatment of adults with community-acquired pneumonia, acute exacerbations of chronic bronchitis, acute maxillary sinusitis and group A-beta-haemolytic streptococcal pharyngitis or tonsillitis. The adverse events and safety profile were similar to comparator antimicrobials. The most common adverse events were diarrhoea, nausea, headache and dizziness. Telithromycin should provide an effective, convenient and well-tolerated once-daily oral therapy for treatment of respiratory infections.
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PMID:Telithromycin: a new ketolide antimicrobial for treatment of respiratory tract infections. 1117 47

Little is known about the effects of primary splenic irradiation (SI) in B-cell chronic lymphocytic leukemia (B-CLL) on subpopulations of lymphocytes, immunoglobulins, and the induction of autoantibodies against erythrocytes and platelets. Twenty-four untreated patients with B-CLL were studied prospectively. One patient was excluded from analysis because of intercurrent death. Of the remaining 23 patients, 7 were female and 16 were male, with an average age of 68.4 and 61.2 years, respectively. Treatment consisted of a weekly dose of I Gy up to a total dose of 10 Gy to the spleen. Standardized evaluation was done 2 weeks before and 6 weeks after SI. Twenty patients completed the course of SI. In 14 patients there was a partial response and in 9 patients the disease remained stable. The number of leukocytes decreased rapidly and significantly, with a decrease in the fraction of lymphocytes and an increase in the neutrophil count (all P<0.0001). There was a significant increase in platelet count, but not in hemoglobin level. Nausea, slight diarrhea, pleuropneumonia, granulopenia with fever (all n=1), urinary tract infection and high fever (n=1), and thrombocytopenia occurred (n=2). One patient received transfusion of packed cells because of upper digestive tract bleeding for which cessation of SI was not necessary. The number of malignant cells showed a significant decrease (P<0.01). No significant changes in CD4/CD8 ratio were found. The number of CD4+ and CD8+-cells, however, decreased significantly (P<0.01 and 0.03, respectively). DAT remained unchanged in most (93%) and tests for antibodies to platelets in 83% of the patients. No significant changes in immunoglobin levels were observed.
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PMID:Clinical and immunological evaluation of primary splenic irradiation in chronic lymphocytic leukemia: a study of 24 cases. 1140 Oct 87

Cefditoren pivoxil, an oral third-generation cephalosporin, was approved by the Food and Drug Administration in September 2001. It has been used in Japan for several years. The greatest therapeutic potential of cefditoren appears to be its activity against gram-positive and gram-negative organisms causing respiratory tract infections and skin and skin-structure infections, such as Haemophilus influenzae, Streptococcus pneumoniae, and Moraxella catarrhalis. Cefditoren is also effective against methicillin-susceptible strains of Staphylococcus aureus. Nevertheless, cefditoren has no activity against atypical pathogens, including Chlamydia pneumoniae, Mycoplasma pneumoniae, and Legionella sp. Moreover, cefditoren does not inhibit Pseudomonas aeruginosa or Bacteroides fragilis. In virtually all studies, cefditoren has compared favorably against other orally administered antibiotics used against the most commonly isolated respiratory tract pathogens. Its side effect profile includes diarrhea, nausea, vomiting, headache, and dyspepsia. Cefditoren is indicated for treatment of mild-to-moderate acute exacerbations of chronic bronchitis, pharyngitis-tonsillitis, and uncomplicated skin and skin-structure infections caused by susceptible strains of organisms in adults and adolescents (> or = 12 yrs of age). Based on its reported antimicrobial activity, cefditoren has potential for empiric management of most commonly encountered respiratory tract infections. Additional studies will further define its role in clinical practice.
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PMID:Cefditoren, a new aminothiazolyl cephalosporin. 1238 78

A randomised, double-blind study of adults with community-acquired pneumonia (CAP) resulted in clinical cure rates of 90.0% for telithromycin and 94.2% for trovafloxacin. Bacteriological eradication rates were also comparable for both treatments. All high-risk patients (i.e. > or = 65 years old [n=25], Pneumonia Severity Index score > or = 111 [n=16], pneumococcal bacteraemia [n=4]) were clinically cured. In infections caused by Mycoplasma pneumoniae and Chlamydophila (Chlamydia) pneumoniae, clinical cure rates were 93.3% (14/15) for telithromycin and 100% (16/16) for trovafloxacin. Possibly drug-related, treatment-emergent adverse events (TEAEs) were considered mild and occurred in 47.2% of telithromycin and 33.0% of trovafloxacin patients. The most frequently reported, possibly drug-related, TEAEs were diarrhoea and nausea for telithromycin and diarrhoea and headache for trovafloxacin. Serious TEAEs occurred in 1.9% of telithromycin and 1.8% of trovafloxacin subjects and were considered not drug related. No deaths occurred during the study. Telithromycin and trovafloxacin were safe and comparable in efficacy in these patients with CAP.
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PMID:Efficacy and tolerability of once-daily oral therapy with telithromycin compared with trovafloxacin for the treatment of community-acquired pneumonia in adults. 1284 41


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