rifampin and Cat-Diseases

The literature relating to feline mycobacterial disease is reviewed and 19 cats with tuberculosis caused by a previously unknown strain of mycobacterium are discussed. The bacteria were found to have characteristics between those of Mycobacterium tuberculosis and M bovis. The paper considers the clinical signs, epidemiology and diagnosis of the cases, and discusses the possible origins of the organism, treatment regimens and zoonotic potential.

Topics: Animals; Anti-Bacterial Agents; Antitubercular Agents; Cat Diseases; Cats; Diagnosis, Differential; Dihydrostreptomycin Sulfate; Drug Therapy, Combination; Female; Incidence; Isoniazid; Male; Mycobacterium; Mycobacterium bovis; Mycobacterium tuberculosis; Pyrazinamide; Rifampin; Skin; Tuberculosis; Tuberculosis, Cutaneous; United Kingdom; Weight Loss

This study investigated the prevalence and antimicrobial susceptibility of enterococci isolated from dogs and cats with urinary tract infections in northwestern Croatia. During this study, the laboratory received 787 urine samples, 651 from dogs and 136 from cats. A total of 260 urine samples (211 from dogs and 49 from cats) were bacteriologically positive. Of these, 29 isolates belonged to Enterococcus spp.; 22 from dogs and seven from cats. Enterococci isolates were identified by PCR method, 12 of which were Enterococcus faecium and 17 were Enterococcus faecalis species. In dogs, 16 E. faecalis and six E. faecium strains were identified, whereas in cats, six E. faecium and only one E. faecalis strain were identified. Antimicrobial susceptibility was determined by the Kirby-Bauer disk diffusion method for nine antimicrobials: penicillin, ampicillin, vancomycin, nitrofurantoin, rifampicin, tetracycline, chloramphenicol, enrofloxacin, ciprofloxacin. The isolates were tested for high-level resistance to streptomycin and gentamicin. The highest resistance of Enterococcus spp. was observed to rifampicin (86%) and enrofloxacin (83%), followed by tetracycline and ciprofloxacin (69%). Resistance to vancomycin was 28%, and the lowest resistance was to chloramphenicol (17%). Multidrug resistance was found in 76% of enterococci isolates. High-level streptomycin resistance was detected in 17% and high-level gentamicin resistance in 10% of the isolated enterococci. When comparing species susceptibility, E. faecium isolates were significantly more resistant to penicillin, ampicillin, nitrofurantoin, and ciprofloxacin (p < 0.05). Eleven E. faecium isolates (92%) and 12 E. faecalis isolates (76%) were multidrug resistant.

Topics: Ampicillin; Animals; Anti-Bacterial Agents; Anti-Infective Agents; Cat Diseases; Cats; Chloramphenicol; Ciprofloxacin; Croatia; Dog Diseases; Dogs; Drug Resistance, Bacterial; Enrofloxacin; Enterococcus; Enterococcus faecium; Gentamicins; Gram-Positive Bacterial Infections; Microbial Sensitivity Tests; Nitrofurantoin; Penicillins; Prevalence; Rifampin; Streptomycin; Tetracycline; Vancomycin

This paper, the first in a series of three on 'feline leprosy', provides a detailed description of disease referable to Candidatus 'Mycobacterium tarwinense', the most common cause of feline leprosy in Victoria, Australia.. Cases were sourced retrospectively and prospectively for this observational study, describing clinical, geographical and molecular microbiological data for cats definitively diagnosed with Candidatus 'M tarwinense' infection.. A total of 145 cases of feline leprosy were scrutinised; 114 'new' cases were sourced from the Victorian Infectious Diseases Reference Laboratory records, veterinary pathology laboratories or veterinarians, and 31 cases were derived from six published studies. Forty-two cats were definitively diagnosed with Candidatus 'M tarwinense' infection. Typically, cats were between 3 and 11 years of age, with no gender predilection, and were generally systemically well. All had outdoor access. Most cats underwent surgical resection of lesions with adjunctive medical therapy, often utilising a combination of oral clarithromycin and rifampicin for at least 3 months. Prognosis for recovery was generally good. Resolution of lesions was not observed in the absence of treatment, but a number of untreated cats continued to enjoy an acceptable quality of life despite persistence of the disease, which extended locally but did not appear to disseminate to internal organs. Preliminary results of draft genome sequencing confirmed that the species is a member of the Mycobacterium simiae complex.. Candidatus 'M tarwinense', a fastidious member of the M simiae complex, is capable of causing feline leprosy with a tendency to produce lesions on the head, particularly involving the eyes and periocular skin. The disease has an indolent clinical course and generally responds favourably to therapy despite lesions often containing large numbers of organisms. Detailed genomic analysis may yield clues as to the environmental niche and culture requirement of this elusive organism. Prospective treatment trials and/or drug susceptibility testing in specialised systems would further inform treatment recommendations.

Topics: Animals; Cat Diseases; Cats; Clarithromycin; Female; Leprostatic Agents; Leprosy; Male; Mycobacterium; Prospective Studies; Retrospective Studies; Rifampin; Victoria

Socially anxious cannabis users are influenced by cannabis expectancies and normative perceptions. The present study examines the influence of psychosocial factors on cannabis use vulnerability factors as the result of interactions between norms perceptions, social anxiety, and expectancies.. Participants were 149 (36.2% female) current cannabis users aged 18-36 (. Among cannabis users with perceptions of greater injunctive norms, social anxiety was associated with greater cannabis craving when tension reduction expectancies were greater. However, social anxiety was unrelated to cannabis craving when expectances were low. This suggests that cannabis craving among socially anxious adults was greatest when cannabis use was viewed as acceptable and expected to reduce tension, and highlights the importance of considering norms, expectancies, and social anxiety in understanding cannabis-related behaviors.. The A876P-substitution bridges in vitro and in vivo studies using J6/JFH1-based recombinants. We provide the first in vivo evidence that HVR1 protects cross-genotype conserved HCV neutralisation epitopes, which advocates the possibility of using HVR1-deleted viruses as vaccine antigens to boost broadly reactive protective nAb responses.. We conclude that the photo-processing of eVSGs leads to the production of PAHs with attached aliphatic sidegroups that are revealed by the 3.4. De 4,331 publicaciones encontradas, 16 estudios cumplieron con los criterios de inclusión. El 50 % (8/16) de los estudios revisados fueron realizados en países de Sur América, Centro América y del Caribe. El diseño de casos y controles fue el más frecuente. El anterior sistema de clasificación de casos (OMS-1997) fue utilizado en todos los estudios incluidos en esta revisión.. El estrés oxidativo-nitrosativo se encuentra presente en el curso de la infección por virus dengue, demostrado por los cambios en las concentraciones plasmáticas de óxido nítrico, antioxidantes y marcadores de lipoperoxidación y de oxidación de proteínas. Por último, parece existir una asociación entre la elevación de los niveles plasmáticos de los carbonilos proteicos y malondialdehído con la severidad del dengue.

Topics: Acid-Base Imbalance; Acidosis, Renal Tubular; Aged; Air Pollution, Indoor; Amino Acid Substitution; Animals; Animals, Newborn; Anti-Bacterial Agents; Antibodies, Neutralizing; Apoptosis; Blood Vessel Prosthesis; Blood Vessel Prosthesis Implantation; Bone Marrow Transplantation; Carbonic Anhydrase Inhibitors; Castleman Disease; Cat Diseases; Cats; Cell Proliferation; Cell- and Tissue-Based Therapy; Chemical and Drug Induced Liver Injury; Chemotaxis, Leukocyte; Clinical Trials as Topic; Coated Materials, Biocompatible; Diagnosis, Differential; Disease Models, Animal; Environmental Monitoring; Female; Gas Chromatography-Mass Spectrometry; Genotype; Granuloma, Foreign-Body; Heart Failure; Hepacivirus; Hepatitis C; Horse Diseases; Horses; Housing; Humans; Hypercalcemia; Hypokalemia; Immunophenotyping; In Vitro Techniques; Liver; Liver Function Tests; Lymphocytes; Macrophages; Male; Medicine, Chinese Traditional; Metabolomics; Mice; Mice, Inbred C57BL; Middle Aged; Models, Animal; Mutation; Myocardial Ischemia; Neovascularization, Physiologic; Neutrophil Infiltration; Ocular Hypertension; Ophthalmic Solutions; Parathyroid Hormone; Particulate Matter; Polyethylene Terephthalates; Prednisolone; Prospective Studies; Prosthesis Design; Prosthesis-Related Infections; Rats; Rats, Wistar; Reactive Oxygen Species; Rifampin; Saponins; Sepsis; Skin; Stem Cells; Stroke Volume; Sulfonamides; Texas; Thiophenes; Time Factors; Ventricular Dysfunction, Left; Ventricular Function, Left; Viral Hepatitis Vaccines; Viral Nonstructural Proteins; Viral Proteins; Vitamin D; Wound Healing

Topics: Animals; Anti-Bacterial Agents; Azithromycin; Cat Diseases; Cats; Enrofloxacin; Female; Fluoroquinolones; Mycobacterium Infections, Nontuberculous; Nontuberculous Mycobacteria; Patient Compliance; Rifampin; Treatment Outcome

An 18-month-old neutered male domestic shorthair cat, domiciled in the southwest of France, was first presented having suffered for a few days from dysorexia and vomiting. Abdominal palpation revealed lymph node enlargement. Cytological examinations of a fine needle aspirate demonstrated granulomatous inflammation with many non-staining elements consistent with mycobacteria. Diagnosis was confirmed by culture and polymerase chain reaction and Mycobacterium avium subspecies was isolated. Treatment was initiated with marbofloxacin, rifampicin and cefoxitin. There was a rapid clinical improvement. The cat suddenly died 2 months later. The main hypothesis is the administration of an inappropriate combination therapy that leads to the development of mycobacterial resistance. A volvulus and acute peritonitis secondary to the significant enlargement of a mesenteric lymph node were present at necropsy. Histopathological analysis of mesenteric lymph node, liver and spleen revealed multicentric granulomatous and severely necrotic lesions with numerous Ziehl-Neelsen positive intracytoplasmic elements.

Topics: Animals; Anti-Bacterial Agents; Cat Diseases; Cats; Cefoxitin; Drug Resistance, Multiple, Bacterial; Drug Therapy, Combination; Fatal Outcome; Fluoroquinolones; Male; Mycobacterium avium; Rifampin; Tuberculosis

A 1-year-old neutered male domestic shorthair cat had an ulcerated, proliferative lesion in the submandibular area that did not respond to antibiotic therapy. Impression smears from the mass revealed septic pyogranulomatous inflammation, with large numbers of pleomorphic bacteria observed intracellularly within macrophages as well as neutrophils. Bacterial culture was consistent with a diagnosis of Rhodococcus equi, a facultative intracellular coccobacillus capable of replicating within macrophages. The cat's lesion resolved after treatment with rifampin and clarithromycin. R equi should be considered as a differential diagnosis when coccobacilli are recognized within macrophages in cytologic samples.

Topics: Actinomycetales Infections; Animals; Anti-Bacterial Agents; Cat Diseases; Cats; Clarithromycin; Male; Rhodococcus equi; Rifampin; Treatment Outcome

Disseminated mycobacterial disease was diagnosed in an eight-year-old domestic shorthaired cat, with involvement of the skin, lungs, lymph nodes and one eye. Mycobacterium simiae was cultured from skin biopsies on solid agar and in liquid media. This organism is known to cause pulmonary, cutaneous or disseminated infection in human patients with acquired immunodeficiency syndrome but has never been encountered as a pathogen in companion animals. Combination treatment with rifampicin, enrofloxacin and clarithromycin resulted in complete clinical remission within six months, with no side effects. No recurrence was observed in a 22-month follow-up period.

Topics: Animals; Anti-Infective Agents; Antitubercular Agents; Bacteremia; Cat Diseases; Cats; Clarithromycin; Diagnosis, Differential; Diagnostic Techniques, Ophthalmological; Drug Therapy, Combination; Enrofloxacin; Fluoroquinolones; Male; Mycobacterium; Mycobacterium Infections; Quinolones; Radiography; Rifampin; Tuberculosis, Ocular

Feline leprosy refers to a condition in which cats develop granulomas of the subcutis and skin in association with intracellular acid-fast bacilli that do not grow on routine laboratory media. In this study, the definition was extended to include cases not cultured, but in which the polymerase chain reaction (PCR) identified amplicons characteristic of mycobacteria. Tissue specimens from 13 such cases from eastern Australia were obtained between 1988 and 2000. This cohort of cats could be divided into two groups on the basis of the patients' age, histology of lesions, clinical course and the sequence of 16S rRNA PCR amplicons. One group consisted of four young cats (less than 4 years) which initially developed localised nodular disease affecting the limbs. Lesions progressed rapidly and sometimes ulcerated. Sparse to moderate numbers of acid-fast bacilli were identified using cytology and/or histology, typically in areas of caseous necrosis and surrounded by pyogranulomatous inflammation. Organisms did not stain with haematoxylin and ranged from 2 to 6 microm (usually 2 to 4 microm). Mycobacterium lepraemurium was diagnosed in two cases based on the sequence of a 446 bp fragment encompassing the V2 and V3 hypervariable regions of the 16S rRNA gene a different sequence was obtained from one additional case, while no PCR product could be obtained from the remaining case. The clinical course was considered aggressive, with a tendency towards local spread, recurrence following surgery and development of widespread lesions over several weeks. The cats resided in suburban or rural environments. A second group consisted of nine old cats (greater than 9 years) with generalised skin involvement, multibacillary histology and a slowly progressive clinical course. Seven cats initially had localised disease which subsequently became widespread, while two cats allegedly had generalised disease from the outset. Disease progression was protracted (compared to the first group of cats), typically taking months to years, and skin nodules did not ulcerate. Microscopically, lesions consisted of sheets of epithelioid cells containing large to enormous numbers of acid-fast bacilli 2 to 8 microm (mostly 4 to 6 microm) which stained also with haematoxylin. A single unique sequence spanning a 557 bp fragment of the 16S rRNA gene was identified in six of seven cases in which it was attempted. Formalin-fixed paraffin-embedded material was utilised by one laboratory, while fresh tiss

Topics: Animals; Cat Diseases; Cats; Clarithromycin; Clofazimine; Female; Leprostatic Agents; Leprosy, Lepromatous; Male; Mycobacterium; Polymerase Chain Reaction; Rifampin; RNA, Ribosomal, 16S

The efficacy of 5 drugs was tested against experimental Babesia felis infection in domestic cats. Two of the drugs, rifampicin and a sulphadiazine-trimethoprim combination, appeared to have an anti-parasitic effect, but were inferior to primaquine. The other 3 drugs, buparvaquone, enrofloxacin and danofloxacin, had no significant anti-babesial effect.

Topics: Animals; Anti-Infective Agents; Antiprotozoal Agents; Babesiosis; Cat Diseases; Cats; Drug Combinations; Enrofloxacin; Fluoroquinolones; Hematocrit; Naphthoquinones; Parasitemia; Primaquine; Quinolones; Rifampin; Sulfadiazine; Trimethoprim

Mycobacterium thermoresistibile was isolated in pure culture from ultrasound-guided pulmonary aspirates taken from a young cat with severe, chronic, pyogranulomatous pneumonia. Thoracic radiography and ultrasonography before therapy demonstrated severe diffuse alveolar disease. Twelve months combination therapy with doxycycline, rifampicin and clarithromycin resolved the infection. Thoracic radiographs taken at the completion of therapy showed multifocal pulmonary mineralisation. M thermoresistibile has been infrequently reported as a human or animal pathogen. This is the first reported pulmonary infection by M thermoresistibile in a cat and documents the successful treatment of the organism in a feline patient.

Topics: Animals; Anti-Bacterial Agents; Cat Diseases; Cats; Chronic Disease; Clarithromycin; Doxycycline; Female; Mycobacterium; Pneumonia; Rifampin

Topics: Animals; Cat Diseases; Cats; Mycobacterium bovis; Mycobacterium tuberculosis; Rifampin; Tuberculosis