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PubMed2003

[Epidemiology of mycoses in submariners based on the Kola Peninsula].

Subject of the study was spreading of mycoses in the troops based on the Kola Peninsula. Examined were the military serving on atomic submarines, maintenance crews of deactivated atomic submarines awaiting disposal, and coastal units. Spreading of skin lesions among the submariners was not same as among the coastal military. Signs of clinical mycoses were observed in 41.2% of submariners of the active unit, in 66.9% of the maintenance crews, and in 38.1% of the coastal military. Infection agents were fungi g. Candida (albicans, guilliermondii, krusei, pseudotropicalis), Epidermophytia plicarum, Ptyriasis versicolor, Trichophyton interdigitale. Among the fighters on active submarines, 53.8% of the clinical observations were accounted for onychomycosis and foot skin lesions and 38.5%--for erythema, maceration and suppuration. Among the maintenance crews 51.8% of the observations were accounted for onychomycosis and foot skin lesions and maceration; hyperkeratosis and fissures prevailed in the coastal military (31.1%). For submariners most common were Candida albicans (80.7%) and guilliermondii (11.6%), and Trichophyton interdigitale (7.7%). In the maintenance crew those were Candida albicans (84.1%) and guilliermondii (11.6%) and in the coastal military, Candida albicans (70.6%), guilliermondii (11.8%) and krusei (14.7%).

Candidiasis, Cutaneous↗
PubMed2000

[Mycoses in domestic animals].

In the present paper we will present a general view of the main mycoses affecting domestic animals. In the dog, we show the importance of the dermatophytoses, increased by its zoonosic character and the problem of the false negatives in the traditional microbiological culture. Under the general term of systemic mycoses we include a series of conditions considered usually as aspergillosis, bat with more and more fungal species implicated as possible etiological agents. In addition, fungi, especially yeasts, are being implicated in canine otitis; in our laboratory 86 % of canine chronic otitis involve a yeast etiology, alone or in collaboration with bacteria. In the cat, dermatophytes are more common than in the dog, and are the main source of infection in man, with the description of a high percentage of healthy carrier animals. Cryptococcosis is a severe disease, usually secondary to other process, especially feline immunodeficiency. In cows we refer to fungal abortion, with three main fungi implicated: Aspergillus, Candida and Zygomycetes. In some areas of our country the percentage of fungal abortion is around 10 %. A consequence of the multiple use of antibiotics in mastitis is selection of yeasts, especially those included in the genera Candida and Cryptococcus. Bovine dermatophytoses is an extensively disseminated disease in our country, with a commercial specific vaccine available. In small ruminants, Cryptococcus causes severe pneumonic processes that could be confused clinically with other conditions. An additional important question is the description of isolation of this fungus from tree leaves. In poultry, aspergillosis is a known and controlled disease, but with more importance in captive wild birds with an ecological value. In horses, we emphasize the lung infections by different fungi, specially Pneumocystis carinii, and arthritis by yeasts as consequence of wound contamination or surgery.

English Abstract↗
PubMed2000

[Morphology of severe mycoses. Role of the pathologist in the diagnosis].

Mycoses are diseases caused by fungi. To be regarded as pathogenic, a fungus has to be able to complete a number of steps in order to initiate infection. Although culture remains the gold standard to diagnose the causative agent, presumptive identification of these fungi in histologic slides is of great value because invasion is only demonstrated in tissue sections. When culture is not available, histopathologic examination may be the sole source of information about the nature of the infection. To make a diagnosis, the pathologist needs to be familiar with the morphologic appearance of the different types of fungi, and has also to be aware of the limitations in their identification. The purpose of this work is to review the current problems on this subject, specially referring to the most frequent severe mycoses of our environment.

English Abstract↗
PubMed2006

[Mycoses and diabetes].

Generally, diabetic patients are more susceptible to skin infections. Although the overall incidence of skin mycoses in diabetics is not higher as compared with healthy population, diabetics seem to suffer from certain types of mycoses more frequently. They are not only tinea pedum and onychomycosis, but also candidoses (especially candidal balanitis). In older patients, sole tinea is often overlooked. Nevertheless, it impairs integrity of skin and lets in bacterial infections causing diabetic foot and aggravates nail infections. Onychomycosis in diabetics is far from being a cosmetic problem only. On the contrary, it is potentially a very dangerous disease. Hypertrophic and deformed nails damage adjacent skin and their pressure can result in decubital ulceration of neighbouring fingers or nail beds. This condition can even lead to finger gangrene. Therapy of onychomycosis in diabetics and seniors should be specific: the most effective therapeutic procedure proved to be the combination of systemic treatment with terbinafine and atraumatic chemical ablation with subsequent local treatment.

Balanitis↗
PubMed1991

[Imidazoles in the treatment of ocular mycoses].

The use of a new class of broad spectrum antifungal drugs i.e. imidazoles and in particular ketoconazole in treatment of severe affections of the eye such as mycoses is described. The clinical trials included 40 patients with various forms of mycosis: mycotic canaliculitis (6 patients), mycotic blepharitis (4 patients), mycotic conjunctivitis (7 patients), keratomycosis (17 patients) and mycotic endophthalmitis (6 patients). Ketoconazole was used in the form of tablets and instillations. The combined treatment included nonsteroid antiinflammatory drugs and antibacterial agents. The clinical trials showed that ketoconazole had pronounced antifungal activity and was rather efficient in treatment of ocular mycoses. Its broad spectrum and low toxicity were recorded.

Administration, Oral↗
PubMed1990

[The significance of occupational factors in the pathogenesis of foot mycoses in miners in deep coal mines].

Skin and peripheral vessel functions, allergic status of the body, lysosomal enzymes activities, lipid peroxidation and antioxidant system status were examined in 280 coal miners suffering from mycoses of the soles, as were their working conditions, in order to clear out some aspects in the pathogenesis of this condition. The data evidence grave disorders of the function of the skin and peripheral vessels of the limbs, of the allergic status of the body, and of lipid peroxidation and antioxidant system, this pointing to a possible contribution of occupational factors to some aspects in the pathogenesis of mycoses of the soles.

Antioxidants↗
PubMed1990

[The characteristics of the clinical manifestations and the pathogenesis of foot mycoses complicated by candidiasis in metallurgists].

Mycologic examinations of patients with mycoses of the soles, working at 5 metallurgical plants in the town of Zaporozhye, have detected T. rubrum in 71.3 percent and T. interdigitale in 28.7 percent of cases. In 110 (18.3 percent) patients C. albicans were isolated from foci of involvement in parallel with Trichophyton. As a rule these patients were engaged in 'hot' shops and suffered from dysfunctions of various vital organs and from metabolic disorders. Mycoses of the soles complicated with Candida infection were characterized by marked exudation and dissemination with symptoms of eczema, intensive itching, efflorescence of the allergic type. High immediate and delayed-type hypersensitivity to administration of Candida antigen was observed in them. Cell-mediated and humoral immune response of these patients was essentially uncoordinated with depression of the T-immunity and nonspecific defense factors as a rule.

Candidiasis, Cutaneous↗
PubMed1989

[Histoplasmosis and other imported mycoses in 1989].

The most common systemic mycoses imported into France are the histoplasmosis caused by H. capsulatum, which comes from Black Africa and from the French overseas departments and territories (Guyane, Martinique, Guadeloupe, New Caledonia), and the histoplasmosis caused by the larger H. duboisii, which is exclusively Central African. In recent years, histoplasmosis has become an opportunistic infection in immunocompromised patients, particularly those with AIDS. Blastomycosis, imported from North America as well as from North Africa and Central Africa, and paracoccidioidomycosis, imported from Latin America, are pulmonary mycoses with cutaneous manifestations on the face and extremities and with various deep localizations which often follow a chronic course. Coccidioidomycosis, strictly limited to the desertic regions in the western part of the American continent, is also a pulmonary mycosis with multiple granulomas in the skin, bones, lymph nodes and meninges. Penicilliosis caused by Penicillium marneffei is a mycosis from South-East Asia which has recently been observed in European AIDS patients who had travelled in that part of the world.

Africa↗
PubMed1977

[Pulmonary mycoses; laboratory diagnosis, antimycotic therapy].

The microscopic, cultural and serological techniques for the diagnosis of European and non-European systemic mycoses involving the respiratory tract are reviewed. The antimicrobial, therapeutic and toxic properties of those antimycotic drugs are discussed, which can be used in the treatment of pulmonary mycoses. Data on biotransformation, kinetics and dosage are reported.

Administration, Topical↗
PubMed1986

The current status of antimycotics in the treatment of local mycoses.

The drugs used in the treatment of superficial mycoses include substances with an indirect affect on the organisms such as the keratolytics as well as antifungal compounds. The antifungals include specific inhibitory compounds such as the polyene or imidazole antibiotics and substances with a wider spectrum of antiseptic activity. High cure rates (80-90%) can be achieved by most specific antifungals although this can be affected by the host response and the location of the infection. The orally active antifungals used in superficial disease, ketoconazole and griseofulvin, can be used in conditions unresponsive or inaccessible to topical therapy, such as chronic superficial candidosis and tinea capitis. However, the treatment of onychomycosis, particularly affecting toe nails, is highly unsatisfactory. There is therefore an important place for new drugs and new methods of applying them in the treatment of superficial (local) mycoses.

Administration, Oral↗
PubMed1977

Intravenous and intrathecal miconazole therapy for systemic mycoses.

Ten patients with systemic mycoses, including five with fungal meningitis, were treated with intravenously or intrathecally administered miconazole, or both. Minimal inhibitory concentrations of miconazole for clinical isolates of Coccidioides immitis, Cryptococcus neoformans and Candida albicans were less than 0.6 microg per ml. Except for pruritus of variable degrees, the drug was well tolerated both intravenously and intrathecally by all patients. No measurable impairment of renal, hepatic or bone marrow function was observed in patients after 4(1/2) months of intravenous therapy. No hematological or biochemical abnormalities and no evidence of recurrent coccidioidal osteomyelitis were observed in 16 months of follow-up in our first patient treated with this drug. Miconazole is apparently an effective antifungal drug of low toxicity and is a potentially useful agent for treatment of human systemic mycoses.

Aged↗
PubMed1980

Efficacy of counterimmunoelectrophoresis in the detection of fungal antibodies in allergic bronchopulmonary mycoses.

The allergic bronchopulmonary mycoses (ABPM) are characterized by dual antibody response which includes immediate Type I and delayed Type III Arthus reactions to fungal antigens. In such cases the demonstration of precipitins is of diagnostic importance. In the present study the efficacy of counterimmunoelectrophoresis (CIE) has been compared with that of conventional agar gel double immunodiffusion technique (DID). Cases of allergic bronchopulmonary aspergillosis (ABPA) and candidiasis (ABPC) were diagnosed in a survey among patients with pulmonary diseases on the basis of positive clinical, radiological, mycological and immunological findings. Precipitating fungal antibodies were detected by CIE and DID techniques in 77 and 59 cases of ABPA and ABPC respectively. The former technique revealed double or multiple bands as against a single band observed in double immunodiffusion in a great majority of these cases. With CIE it was further possible to demonstrate the presence of precipitins in about 65 per cent of suspected cases of ABPM found otherwise negative in DID tests. The CIE has proved to be a more efficacious serodiagnostic procedure in allergic bronchopulmonary mycoses in which antibody levels are known to vary a great deal.

Antibodies, Fungal↗
PubMed1981

[Open clinical trial in dermal mycoses of a 1% ciclopiroxolamine solution in polyethylene glycol 400 carried out in FR Germany/Study with shortened therapy (author's transl)].

In an open multicentre study, a 1% solution of 6-cyclohexyl-1-hydroxy-4-methyl-2(1H)-pyridone, 2-aminoethanol salt (ciclopiroxolamine, Cic. Hoe 296, Batrafen) in polyethylene glycol 400 was examined for its topical activity in 344 cases of dermal mycoses. 65.4% of them were caused by dermatophytes and 19.2% by yeast-like fungi. In most cases, the treatment period was two weeks, with one or two daily applications. The examiners found global therapeutic effectiveness in 97.5% of the mycoses, the rate of very good and good results being 84.0%, and a very good tolerance in 99.0%. Individual side effects were predominantly subjective and transient.

Administration, Topical↗
PubMedDate not supplied

[Metamphocin in the treatment of ocular mycoses].

Metamphocin (methyl ether of amphotericin B), a new antifungal polyene antibiotic was used in the treatment of ocular mycoses. The procedure and results of its use are described. The clinical trials included 8 patients with keratomycosis and 2 patients with fungal endophthalmitis. Metamphocin was administered as drop-like intravenous injections in combination with local instillation of ketoconazole and dexamethasol. The clinical trials showed that metamphocin was an efficient antifungal drug useful in the treatment of ocular mycoses. Metamphocin proved to be less toxic than amphotericin B.

Amphotericin B↗
PubMed1998

[Rare pulmonary mycoses in patients with hematologic diseases].

Patients with hematology disease in post-chemotherapy medullary aplasia are susceptible to life-threatening bronchopulmonary mycoses, especially aspergillosis. Other less common pulmonary mycoses are also observed. We report 4 cases due to Penicillium purpurogenum, Acromonium strictum and Scedosporium apiospermum (n = 2) infections. These unusual fungi appear to be emerging as pathogens in this population. They have common ubiquitous, opportunistic and low pathogenicity characteristics in immunocompetent subjects. The major risk factor is neutropenia. Isolating one of these fungi in an immunodepressed patient modifies management protocols since certain unusual fungi such as Scedosporium are resistant to amphotericin B.

Acremonium↗
PubMed1997

The use of immunohistochemistry to improve sensitivity and specificity in the diagnosis of systemic mycoses in patients with haematological malignancies.

The original histomorphological diagnoses in a series of 34 mycotic lesions from 23 patients with haematological malignancies were re-evaluated by immunohistochemistry. A panel of antibodies was used to identify the agents of aspergillosis, candidosis, fusariosis, scedosporiosis (pseudallescheriosis), and zygomycosis. Apart from improving the diagnosis of aspergillosis, candidosis, and zygomycosis, the application of immunohistochemistry also disclosed three lesions of aspergillosis which had been overlooked during the original screening. It is concluded that the use of immunohistochemistry for the diagnosis of common opportunistic mycoses will not only increase diagnostic specificity, but will also reveal more tissue infections than the conventional histomorphological examination of traditionally stained sections.

Aspergillosis↗
PubMed2001

Effects of temperature and relative humidity on sporulation of Metarhizium anisopliae var. acridum in mycosed cadavers of Schistocerca gregaria.

The effects of relative humidity (RH) and temperature on the sporulation of Metarhizium anisopliae var. acridum on mycosed cadavers of desert locust, Schistocerca gregaria, were assessed in the laboratory. Quantitative assessments of conidial production over 10 days under constant conditions showed that sporulation was optimized at RH > 96% and at temperatures between 20 and 30 degrees C. Under both these conditions >10(9) conidia/cadaver were produced. At 25 degrees C, conidial yield was maximized under conditions in which cadavers remained in contact with damp substrate. Relatively little sporulation occurred at 15 degrees C (< 3 x 10(7) conidia/cadaver) and 40 degrees C (< 4 x 10(6) conidia/cadaver) and no sporulation occurred at 10 or 45 degrees C. Following incubation, conidial yield was closely related to the water content of locust cadavers. In separate tests, locust cadavers were incubated for 10 days under diurnally fluctuating temperature and RH that comprised favorable (25 degrees C/100% RH) alternating with unfavorable (40 degrees C/80% RH) conditions for sporulation. In this case, fewer conidia were produced compared with cadavers that were incubated under the favorable conditions for an equal period cumulatively but were not periodically exposed to unfavorable conditions. However, this reduced sporulation observed with the fluctuating condition was not observed when cadavers were similarly incubated under favorable/unfavorable conditions of temperature but were not periodically exposed to the low RH condition. This result implies that sporulation is a dynamic process, dependent not only on periodic exposure to favorable RH but also on the interrelation of this with low RH. Associated tests and the monitoring of changes in cadaver weights imply that the mechanism driving the reduced sporulation under fluctuating RH is the net water balance of cadavers, i.e. the cumulative ability of the fungus/cadaver to adsorb water necessary for sporulation at high RH is restricted by water loss associated with intermittent exposure to a low RH. The duration of daily exposure to high humidity appears to be a crucial constraint to the recycling ability of M. anisopliae var. acridum.

Animals↗