The study consist of 134 neonatal pneumonia who under 28 days born addmitted to The Neonatal department of National Institute of Peadiatrics from December 2001 to November 2002. The out comes showed that: Positive rate: 71.15%, negative rate: 29.85%. Common isolated bacteria were negative Gram. Ampicillin, gentamycin, chloramphenicol bactrim have resistance antibiotic. The recovered treatment result: 90.3%; mortality: 9.7% in which 61.2% are fully recovered without change other antibiotic. The average treatment duration by antibiotic:13.2%
Pneumonia ; Anti-Bacterial Agents ; Chloramphenicol

This study was aimed to assess the dissolution of 4 chloramphenicol capsule products of 4 Vietnamese pharmaceutical enterprises. The results showed that most of them have a very low drug release degree. The cause may be resulted from making capsule without making particles, too raw powder, using too much insoluble excipient, too high rate of insoluble excipient. The dissolution test should be considered an item of chloramphenicol capsule specification
Chloramphenicol ; Adjuvants, Pharmaceutic ; Capsules ; drugs

Background/Objective: Haemophilus influenzae type b remains to be a significant etiology of invasive infections specially in children two months to five years old without Hib vaccination. This study was performed to compare the cure rates of ampicillin, chloramphenicol, ampicillin-chloramphenicol combination and third generation cephalosporins as initial antibiotic treatments for documented invasive Hib infections. This study may assist in formulating recommendations on empiric antimicrobial therapy. Methods: Charts of patients with invasive Hib disease confirmed either by blood culture, CSF culture and/or latex agglutination test from January 1991 to August 2010 were reviewed. Cases were classified into four groups depending on the initial antibiotic given upon admission. The four groups were compared and analyzed in terms of cure rates. Results The disease occurred predominantly in children less than two years old. Males were more frequently affected than females. All subjects were not given Hib vaccination. Cure rates were significantly different between ampicillin (33%) and chloramphenicol (89%) groups (p=0.017), and between chloramphenicol (89%) and ampicillin-chloramphenicol (39%) groups (p=0.008). However, cure rates were not significantly different when third generation cephalosporin group (62%) was compared to the other treatment groups (p>0.05). Resistance of Hib was 31% to ampicillin, while <10% to chloramphenicol and third generation cephalosporins. Conclusion: Chloramphenicol is an excellent drug for empiric therapy in highly suspected or proven cases of invasive Hib disease.
Ampicillin ; Chloramphenicol ; Third Generation Cephalosporins ; Haemophilus influenzae

Protermycin, the first molecular synthetic of tetracycline and chloramphenicol, has been given trial in 28 patients: acute gonococcal urethritis 10, nongonococcal urethritis 7, acute cystitis 6, chancroid 1 and postoperative cases 4. The doses ranged from 300 to 600 me daily. From this study, it was found that Protermycin proved itself to be most effective in nongonococcal urethritis which could not be treated satisfactorily by other antibiotics. Of 28 cases, 25 showed good result. The remaining 3 cases failed to respond.
Anti-Bacterial Agents ; Chancroid ; Chloramphenicol ; Cystitis ; Humans ; Tetracycline ; Urethritis

Cancer resistance to treatment ; Peninsular Malaysia ; Tetracyclines ; Salmonella typhi ; Chloramphenicol

Haemophilus influenzae type b (Hib) is a major cause of meningitis and pneumonia in children. In Papua New Guinea (PNG) more than 20% of Hib are now resistant to chloramphenicol, and resistant Hib meningitis treated with chloramphenicol results in certain death or severe brain injury. Third-generation cephalosporins are a therapeutic option but are very expensive, while the Haemophilus influenzae type b conjugate vaccine would provide effective prevention. In a province of 380,000 people, using ceftriaxone as standard treatment for meningitis in all health facilities would only save an estimated 8 more lives per year than using chloramphenicol, and cost US dollars 1514 per additional life saved. Introduction of Hib vaccine would save, each year, 61 more lives than using chloramphenicol and 53 more lives than using ceftriaxone for meningitis treatment. The cost of a vaccination strategy for Hib meningitis would be US dollars 1216 for each of the 61 additional lives saved. Hib vaccine would be by far the most effective intervention to reduce mortality and severe neurological disability from Hib meningitis in PNG. Nationwide introduction of Hib vaccine is urgently needed, as antibiotics are now less effective in this disease than ever before.
Haemophilus influenzae type b bacteria ; Meningitis ; Vaccines ; Chloramphenicol ; Prevention

Microorganisms are the dominant players driving the degradation and transformation of chloramphenicol (CAP) in the environment. However, little bacterial strains are able to efficiently degrade and mineralize CAP, and the CAP degrading pathways mediated by oxidative reactions remain unclear. In this study, a highly efficient CAP-degrading microbial consortium, which mainly consists of Rhodococcus (relative abundance >70%), was obtained through an enrichment process using CAP-contaminated activated sludge as the inoculum. A bacterial strain CAP-2 capable of efficiently degrading CAP was isolated from the consortium and identified as Rhodococcus sp. by 16S rRNA gene analysis. Strain CAP-2 can efficiently degrade CAP under different nutrient conditions. Based on the biotransformation characteristics of the detected metabolite p-nitrobenzoic acid and the reported metabolites p-nitrobenzaldehyde and protocatechuate by strain CAP-2, a new oxidative pathway for the degradation of CAP was proposed. The side chain of CAP was oxidized and broken to generate p-nitrobenzaldehyde, which was further oxidized to p-nitrobenzoic acid. Strain CAP-2 can be used to further study the molecular mechanism of CAP catabolism, and has the potential to be used in in situ bioremediation of CAP-contaminated environment.
Biodegradation, Environmental ; Chloramphenicol ; RNA, Ribosomal, 16S/genetics* ; Rhodococcus/genetics* ; Sewage

Sciatic nerve injury can result from intragluteal administration of any kind of antibiotics or other agents therapeutically or prophylactically. This experimental study was conducted in order to observe the histopathological findings of injured sciatic nerve following injection with normal saline, chloromycetin, penicillin and rheumapyrine. Fifty-five experimental normal adult rabbits were divided into 4 groups and various substances were injected intraneurally on the right side and perineurally on the left side. Pathological specimens were then taken at intervals of 1, 3, 7, and 21 days after injection. The results obtained were summarized as follows: 1. Rheumapyrine produced the greatest reaction, penicllin was the next and chlomycetin was the least damaging of the drugs in this study. 2. More conspicuous pathological changes were observed on the right side than on the left side. 3. It was thought that major source of damage to the sciatic nerve was chemical toxicity to the peripheral nerve. 4. Intraneural injections of rheumaphyrine induced irreversible damage on nervous tissue and perineural fibrosis. 5. Intraneural injection of penicillin caused transient reversible damage on nervous tissue with perineural deposition of collagen. 6. Intraneural injection of chloromycetin induced early reversible damage on nervous tissue with persistant inflammatory reaction in soft tissue. 7. Perineural injection of rheumapyrine, penicillin and chloromycetin induced mild damage on nerveus tissue and revealed moderate inflammatory reaction on soft tissue.
Adult ; Anti-Bacterial Agents ; Chloramphenicol ; Collagen ; Fibrosis ; Humans ; Penicillins ; Peripheral Nerves ; Rabbits ; Sciatic Nerve*

BACKGROUND: It is known that slippers, shoes, floor, and clothes of common uses are the sources of infection by dermatophytes but there are few reports of culture of it from these environments, especially in Korea. OBJECTIVE: The aim of this work was to evaluate contamination status of the slippers of adult school use by dermatophytes. METHODS: The samples were gathered from 70 pairs of slippers of adult school use with adhesive tape strip method and they were cultured on the media with cycloheximide (500 mg/L) and chloramphenicol (500 mg/L) to control the growth of nondermatophytic fungi. RESULTS: Dermatophytes were isolated from 33 (47.1%) out of a total of 70 pairs of slippers. Twenty four pairs of slippers (34.3%) were contaminated with Trichophyton (T.) mentagrophytes only; 8 (11.4%) with T. rubrum only; 1 (1.4%) with both of them. Thus, T. mentagrophytes was the most common isolate. The number of colonies of T. mentagrophytes, isolated from 25 pairs of slippers, was 97 (mean 3.88/pair), and that of T. rubrum from 9 pairs was 34 (3.78/pair). CONCLUSION: About forty seven percent of slippers of adult school use were contaminated by dermatophytes so that the control of tinea pedis would necessitate the simultaneous treatment of the infected individual and contaminated areas of the environment such as shoes and floor.
Adhesives ; Adult ; Arthrodermataceae* ; Chloramphenicol ; Cycloheximide ; Fungi ; Humans ; Korea ; Shoes ; Tinea Pedis ; Trichophyton

BACKGROUND: Periodic monitoring of regional or institutional resistance trends of clinically important anaerobic bacteria is recommended, because the resistance of anaerobic pathogens to antimicrobial drugs and inappropriate therapy are associated with poor clinical outcomes. There has been no multicenter study of clinical anaerobic isolates in Korea. We aimed to determine the antimicrobial resistance patterns of clinically important anaerobes at multiple centers in Korea. METHODS: A total of 268 non-duplicated clinical isolates of anaerobic bacteria were collected from four large medical centers in Korea in 2012. Antimicrobial susceptibility was tested by the agar dilution method according to the CLSI guidelines. The following antimicrobials were tested: piperacillin, piperacillin-tazobactam, cefoxitin, cefotetan, imipenem, meropenem, clindamycin, moxifloxacin, chloramphenicol, metronidazole, and tigecycline. RESULTS: Organisms of the Bacteroides fragilis group were highly susceptible to piperacillin-tazobactam, imipenem, and meropenem, as their resistance rates to these three antimicrobials were lower than 6%. For B. fragilis group isolates and anaerobic gram-positive cocci, the resistance rates to moxifloxacin were 12-25% and 11-13%, respectively. Among B. fragilis group organisms, the resistance rates to tigecycline were 16-17%. Two isolates of Finegoldia magna were non-susceptible to chloramphenicol (minimum inhibitory concentrations of 16-32 mg/L). Resistance patterns were different among the different hospitals. CONCLUSIONS: Piperacillin-tazobactam, cefoxitin, and carbapemems are highly active beta-lactam agents against most of the anaerobes. The resistance rates to moxifloxacin and tigecycline are slightly higher than those in the previous study.
Agar ; Bacteria, Anaerobic* ; Bacteroides fragilis ; Cefotetan ; Cefoxitin ; Chloramphenicol ; Clindamycin ; Gram-Positive Cocci ; Imipenem ; Korea ; Metronidazole ; Piperacillin