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1.
Article in English | MEDLINE | ID: mdl-38572773

ABSTRACT

BACKGROUND: Brodalumab, a fully human monoclonal immunoglobulin IgG2 antibody that binds the human interleukin 17 receptor subunit A, is available for the treatment of moderate-to-severe plaque psoriasis in Europe since September 2017, but so far there are only a few studies on its use in real-world conditions. OBJECTIVES: To assess the management of moderate-to-severe psoriasis with brodalumab 210 mg in daily practice after 12 and 52 weeks (W). In addition, patient profiles and treatment pathways are described. METHODS: LIBERO is a prospective, multicenter, non-interventional study including adult patients with plaque psoriasis treated with brodalumab 210 mg. RESULTS: In total, 638 patients (65% male, mean age: 49.3 ± 14.4 years) from 148 sites in Germany were enrolled. The majority suffered from severe (51.1%) or very severe (13.1%) psoriasis according to physician global assessment (PGA0-5). When starting with brodalumab, 58.5% were biologic naïve and 41.5% were previously treated with another biologic, mainly adalimumab (18.5%) and secukinumab (17.9%). About 74.0% of patients met the primary endpoint of an absolute PASI ≤3 at ~W12 (n = 618, LOCF). The mean PASI was reduced significantly as of ~W2 from 17.2 (±11.7) to 9.7 (±8.8) and improved further to 3.3 (±6.3) at ~W12 (p < 0.001). At ~W52 85.5% of patients reached a PGA0/1-response (primary endpoint) and 54.1% patients were assessed as completely clear (PGA0) (both n = 399, as observed). Effectiveness of brodalumab was confirmed in relevant subgroup analysis by previous treatment regimen. Most frequently reported adverse events were nasopharyngitis (4.6%), psoriasis (4.6%) and arthralgia (4.1%), new safety signals were not detected. CONCLUSION: This representative, non-interventional study confirms the short- and long-term effectiveness and safety profile of brodalumab in the management of psoriasis in daily practice as well as in relevant treatment pathways.

2.
Domest Anim Endocrinol ; 74: 106554, 2021 01.
Article in English | MEDLINE | ID: mdl-32920446

ABSTRACT

Glucocorticoids, particularly cortisol and corticosterone, are key homeostatic regulators during metabolic and endocrine adaptations including inflammatory responses. Besides the established response of total cortisol (TC) concentrations during inflammatory processes in dairy cows, we investigated changes of corticosterone, free cortisol (FC), and serum albumin as the main protein of unspecific cortisol binding, in response to an intramammary lipopolysaccharide (LPS) challenge. Furthermore, we evaluated relationships of glucocorticoid responses with concomitant alterations of metabolites and their endocrine regulators, insulin and glucagon. Blood samples of 10 multiparous Holstein dairy cows (26.8 ± 3.4 d in milk, previous lactation yield: 7,601 ± 938 kg; mean ± SD) were obtained every 30 min up to 5 h after the LPS instillation, and rectal temperature and heart rate were measured in parallel. Corticosterone was measured by enzyme immunoassay, TC by radioimmunoassay, and the proportion of FC by ultrafiltration. A mixed model was used to evaluate differences within the investigated parameters among selected time points (0, 3.5, and 5 h relative to the intramammary LPS administration). Rectal temperature increased up to 41.6 ± 0.1°C at 5 h after the LPS application. Concentrations of TC and corticosterone increased until 3.5 h, and the proportion of FC relative to TC more than doubled until 3.5 h after LPS administration. Serum albumin concentration was reduced at 5 h compared with initial values, whereas concentrations of insulin, glucagon, and glucose were increased after 5 h compared with 0 h. In conclusion, the stimulation of the immune system by the intramammary LPS administration is accompanied by distinct metabolic and endocrine changes. Corticosterone and TC concentrations react similarly in response to the LPS challenge and earlier compared with metabolic adaptations. The increased need of active cortisol is covered by both increased secretion and a higher percentage of FC.


Subject(s)
Corticosterone/blood , Energy Metabolism/drug effects , Hydrocortisone/blood , Inflammation/chemically induced , Lipopolysaccharides/toxicity , Mastitis, Bovine/chemically induced , Adaptation, Physiological/drug effects , Animals , Cattle , Female , Glucagon , Insulin/blood , Serum Albumin
3.
J Dairy Sci ; 102(11): 10564-10572, 2019 Nov.
Article in English | MEDLINE | ID: mdl-31477289

ABSTRACT

The loss-of-function mutation of the apolipoprotein (APO) B gene (APOB) in Holstein cattle accounts for increased losses in calves that are homozygous for this mutation. Heterozygous carriers of the APOB mutation are clinically healthy but show decreased concentrations of plasma cholesterol and lipoproteins. So far, the metabolic effects of the mutation have only been investigated in heterozygous calves, bulls, and nonlactating females. In high-yielding dairy cows, a marked decrease in cholesterol concentration in plasma during early lactation is part of the usual metabolic changes. Given the essential role of cholesterol in fatty acid and lipid metabolism, a specific effect of the APOB mutation on metabolism and performance in dairy cows is expected. Therefore, the aim of the present study was to investigate the effects of different APOB genotypes on metabolic parameters, hepatic metabolism, and lactation and reproductive performance. Twenty pairs of full siblings with similar age, performance, and calving were investigated. Both animals of each pair were kept on the same farm and consisted of a heterozygous carrier (CDC) and a noncarrier (CDF) of the APOB mutation associated with cholesterol deficiency. Blood samples were taken in early (25.5 ± 4.7 d in milk) and mid lactation (158.2 ± 11.1 d in milk; mean ± SD), and analyzed for nonesterified fatty acids, ß-hydroxybutyrate, glucose, insulin-like growth factor-1, aspartate aminotransferase and gamma-glutamyltransferase activity, total cholesterol, free cholesterol, triacylglycerols, high density lipoprotein-cholesterol, and phospholipids. The evaluation of milk production, milk gross composition, and lactation persistency was based on official Dairy Herd Improvement Association recordings. Cholesterol and lipoprotein concentrations were lower in CDC cows than in CDF cows in early and mid lactation. Metabolic parameters, triacylglycerol concentration in plasma, and lactation and reproductive performance did not differ between CDC cows and CDF cows. The low cholesterol concentrations associated with the APOB mutation in heterozygous carriers are not because of a primary deficiency of cholesterol at a cellular level, as the term "cholesterol deficiency" suggests, but rather a consequence of reduced capacity for its transport in circulation. Overall, the data of the present study suggest that, despite the presence of the APOB mutation, cholesterol is not limiting for animals' metabolic adaptation and performance in heterozygous Holstein cows.


Subject(s)
Apolipoproteins B/genetics , Cattle/genetics , Cholesterol/blood , Loss of Function Mutation , 3-Hydroxybutyric Acid/blood , Animals , Biological Transport , Blood Glucose/metabolism , Cattle/blood , Cholesterol/deficiency , Cholesterol, HDL/blood , Fatty Acids, Nonesterified/blood , Female , Lactation , Lipid Metabolism , Liver/metabolism , Milk , Reproduction , Triglycerides/metabolism
4.
Bone Marrow Transplant ; 52(12): 1651-1657, 2017 Dec.
Article in English | MEDLINE | ID: mdl-28892083

ABSTRACT

In this prospective multicenter study, we investigated the course of depression and anxiety during hematopoietic stem cell transplantation (HSCT) until 5 years after transplantation adjusting for medical information. Patients were consulted before HSCT (n=239), at 3 months (n=150), 12 months (n=102) and 5 years (n=45) after HSCT. Depression and anxiety were assessed with the Hospital Anxiety and Depression Scale (HADS). Detailed medical and demographic information was collected. Prevalence rates were compared with an age- and gender-matched control group drawn from a large representative sample (n=4110). The risk of depression before HSCT was lower for patients than for the control group (risk ratio (RR), 0.56; 95% confidence interval (CI), 0.39/0.81). Prevalence rates of depression increased from 12 to 30% until 5 years post HSCT. Anxiety rates were most frequently increased before HSCT (29%, RR, 1.31; 95% CI, 1.02/1.68) and then reached a stable level comparable to the background population (RR 0.83, 95% CI, 0.56/1.22). This study confirms the low levels of depression in the short term after HSCT and identifies depression as a long-term effect. Furthermore, it confirms previous results of heightened anxiety before HSCT. Surveillance of symptoms of anxiety during the short-term phase of HSCT and of depression during the following years is crucial.


Subject(s)
Anxiety/etiology , Depression/etiology , Hematopoietic Stem Cell Transplantation/adverse effects , Adult , Case-Control Studies , Female , Germany/epidemiology , Hematopoietic Stem Cell Transplantation/psychology , Humans , Male , Middle Aged , Prospective Studies , Time Factors
5.
Clin Exp Allergy ; 47(5): 684-692, 2017 May.
Article in English | MEDLINE | ID: mdl-28160338

ABSTRACT

BACKGROUND: Most data on chronic spontaneous urticaria (CSU) originate from highly selected patient populations treated at specialized centres. Little is known about CSU patient characteristics and the burden of CSU in routine clinical practice. AWARE (A World-wide Antihistamine-Refractory chronic urticaria patient Evaluation) is an ongoing global study designed to assess chronic urticaria in the real-life setting. OBJECTIVE: To describe the baseline characteristics of the first 1539 German AWARE patients with H1-antihistamine-refractory CSU. METHODS: This prospective non-interventional study included patients (18-75 years) with a diagnosis of H1-antihistamine-refractory CSU for > 2 months. Baseline demographic and disease characteristics, comorbidities, and pharmacological treatments were recorded. Quality of life (QoL) was assessed using the dermatology life quality index (DLQI), chronic urticaria QoL questionnaire (CU-Q2 oL), and angioedema QoL questionnaire (AE-QoL, in cases of angioedema). Previous healthcare resource utilization and sick leave data were collected retrospectively. RESULTS: Between March and December 2014, 1539 patients were assessed in 256 sites across Germany. The percentage of females, mean age, and mean body mass index were 70%, 46.3 years, and 27 kg/m2 , respectively. The mean urticaria control test score was 7.9, one in two patients had angioedema, and the most frequent comorbidities were chronic inducible urticaria (CIndU; 24%), allergic rhinitis (18.2%), hypertension (18.1%), asthma (12%), and depression (9.5%). Overall, 57.6% of patients were receiving at least one pharmacological treatment including second-generation H1-antihistamines (46.3%), first-generation H1-antihistamines (9.1%), and corticosteroids (15.8%). The mean DLQI, total CU-Q2 oL, and total AE-QoL scores were 8.3, 36.2, and 46.8, respectively. CSU patients reported frequent use of healthcare resources, including emergency services (29.7%), general practitioners (71.9%), and additional allergists or dermatologists (50.7%). CONCLUSIONS AND CLINICAL RELEVANCE: This study reveals that German H1-antihistamine-refractory CSU patients have high rates of uncontrolled disease, angioedema, and comorbid CIndU, are undertreated, have impaired QoL, and rely heavily on healthcare resources.


Subject(s)
Histamine H1 Antagonists/administration & dosage , Urticaria/drug therapy , Adolescent , Adult , Aged , Chronic Disease , Female , Germany/epidemiology , Histamine H1 Antagonists/adverse effects , Humans , Male , Middle Aged , Urticaria/epidemiology , Urticaria/pathology
6.
Bone Marrow Transplant ; 52(5): 753-758, 2017 May.
Article in English | MEDLINE | ID: mdl-28112750

ABSTRACT

Although allogeneic hematopoietic stem cell transplantation (HSCT) features severe physical and psychological strain, no previous study has prospectively investigated fatigue beyond 3 years after transplantation. We investigated the temporal course of fatigue over 5 years, compared patients with the general population (GP) and tested for treatment- and complication-related risk factors. Patients were assessed before conditioning (T0, N=239) and at 100-day (T1, N=150), 1-year (T2, N=102) and 5-year (T3, N=45) follow-up. We measured fatigue with the Multidimensional Fatigue Inventory-20. Patients were compared with the GP at T0 and at T3. Global fatigue increased from T0 to T1 (t=3.85, P<0.001), decreased from T1 to T2 (t=-2. 92, P=0.004) and then remained stable (t=0.45, P=0.656). No difference in global fatigue was found between T0 and T3 (t=0.68, P=0.497). Compared with the GP, patients showed higher global fatigue at T0 (t=-6.02, P<0.001) and T3 (t=-2.50, P=0.014). These differences reached meaningful effect sizes (d⩾0.5). Acute and chronic GvHD predicted global fatigue at T1 (γ=0.34, P=0.006) and T2 (γ=0.38, P=0.010), respectively. To conclude, fatigue among allogeneic HSCT patients improves with time, finally returning to pretransplantation levels. However, even after 5 years, the difference from the GP remains relevant. Patients with GvHD are at risk for increased fatigue.


Subject(s)
Fatigue/etiology , Hematopoietic Stem Cell Transplantation/adverse effects , Adult , Fatigue/diagnosis , Female , Follow-Up Studies , Graft vs Host Disease/pathology , Humans , Male , Middle Aged , Prospective Studies , Risk Factors , Time Factors , Transplantation Conditioning/adverse effects , Transplantation Conditioning/methods , Transplantation, Homologous/adverse effects
7.
J Anim Sci ; 94(6): 2357-65, 2016 Jun.
Article in English | MEDLINE | ID: mdl-27285912

ABSTRACT

One of the most prominent physiological responses to stressors is the activation of the hypothalamic-pituitary-adrenocortical (HPA) axis, currently assessed by measuring cortisol concentration in blood plasma. To reduce animal discomfort during sampling, which negatively affects stress biomarkers, current research focuses on noninvasive sampling of media other than blood, for example, saliva. The aim of this study was to assess the suitability of saliva cortisol as a biomarker under different physiological and immunological states in dairy cows. Our objectives were to 1) evaluate the relationship between HPA axis activation and saliva cortisol concentration, 2) investigate effects of some feeding action (as influenced by feed and water consumption) on saliva cortisol concentration, and 3) evaluate the time lag between plasma and saliva cortisol during induced inflammatory conditions by intramammary lipopolysaccharide (LPS) and lipoteichoic acid (LTA) injection. During a specific activation of the HPA axis, a positive correlation ( = 0.75, < 0.0001) between saliva and blood cortisol concentrations was observed with increased ( < 0.01) plasma cortisol concentrations following ACTH administration. Saliva and blood samples were taken before, during, and after drinking, feeding, and ruminating. Only a low correlation between saliva and plasma cortisol concentrations ( = 0.03, = 0.83) but no significant effects of the different feeding actions on saliva cortisol were observed. When compared with basal concentrations, cortisol concentrations in plasma significantly increased during inflammatory responses following LPS and LTA injection. Compared with plasma cortisol, changes in saliva cortisol concentrations occurred at a much lower level within a narrow range and did not necessarily follow changes in plasma. In conclusion, the positive correlation between saliva and plasma cortisol concentration in response to ACTH and inflammation suggests the suitability of saliva cortisol measurement for the HPA axis activation assessment. However, changes in saliva cortisol concentration occur within a very narrow range. Furthermore, not only must variation among individual animals be considered but also variation within the same animal. Only with additional knowledge of the concomitant physiological status of the cow it is possible to correctly evaluate saliva and blood cortisol samples.


Subject(s)
Cattle/physiology , Hydrocortisone/chemistry , Hypothalamo-Hypophyseal System/physiology , Pituitary-Adrenal System/physiology , Saliva/chemistry , Adrenocorticotropic Hormone/pharmacology , Animals , Biomarkers , Feeding Behavior/physiology , Female , Humans , Male
8.
J Anim Sci ; 94(4): 1761-6, 2016 Apr.
Article in English | MEDLINE | ID: mdl-27136033

ABSTRACT

During the last months, the number of reports on Holstein calves suffering from incurable idiopathic diarrhea dramatically increased. Affected calves showed severe hypocholesterolemia and mostly died within days up to a few months after birth. This new autosomal monogenic recessive inherited fat metabolism disorder, termed cholesterol deficiency (CD), is caused by a loss of function mutation of the bovine gene. The objective of the present study was to investigate specific components of lipid metabolism in 6 homozygous for the mutation (CDS) and 6 normal Holstein calves with different genotypes. Independent of sex, CDS had significantly lower plasma concentrations of total cholesterol (TC), free cholesterol (FC), high-density lipoprotein cholesterol (HDL-C), low-density lipoprotein cholesterol (LDL-C), very-low-density lipoprotein cholesterol (VLDL-C), triacylglycerides (TAG), and phospholipids (PL) compared with homozygous wild-type calves ( < 0.05). Furthermore, we studied the effect of the genotype on cholesterol metabolism in adult Holstein breeding bulls of Swissgenetics. Among a total of 254 adult males, the homozygous mutant genotype was absent, 36 bulls were heterozygous carriers (CDC), and 218 bulls were homozygous wild-type (CDF). In CDC bulls, plasma concentrations of TC, FC, HDL-C, LDL-C, VLDL-C, TAG, and PL were lower compared with CDF bulls ( < 0.05). The ratios of FC:cholesteryl esters (CE) and FC:TC were higher in CDC bulls compared with CDF bulls, whereas the ratio of CE:TC was lower in CDC bulls compared with CDF bulls ( < 0.01). In conclusion, the CD-associated mutation was shown to affect lipid metabolism in affected Holstein calves and adult breeding bulls. Besides cholesterol, the concentrations of PL, TAG, and lipoproteins also were distinctly reduced in homozygous and heterozygous carriers of the mutation. Beyond malabsorption of dietary lipids, deleterious effects of apolipoprotein B deficiency on hepatic lipid metabolism, steroid biosynthesis, and cell membrane function can be expected, which may result in unspecific symptoms of reduced fertility, growth, and health.


Subject(s)
Apolipoproteins B/metabolism , Cattle/genetics , Cattle/metabolism , Cholesterol/deficiency , Lipid Metabolism/genetics , Animals , Apolipoproteins B/blood , Apolipoproteins B/genetics , Cholesterol/blood , Cholesterol/genetics , Dietary Fats/pharmacology , Genotype , Humans , Lipid Metabolism/physiology , Liver/metabolism , Male , Mutation
9.
Gesundheitswesen ; 77(10): 742-8, 2015 Oct.
Article in German | MEDLINE | ID: mdl-25985223

ABSTRACT

OBJECTIVES: Families with migrant backgrounds (MB) are exposed to several psychosocial risk factors that increase the likelihood of impaired child development, in particular. QUESTIONS: We investigated whether families with MB differ from families without MB regarding their psychosocial stressors in the period of pregnancy and birth. METHOD: As part of a social early warning system in an obstetrics clinic in Germany n=502 families with MB were compared with n=349 families without MB with respect to the degree of stress and stress factors on the basis of an initial screening of risk factors for child maltreatment by a midwife or physician and a subsequent structured clearing interview by social education workers during the mothers' inpatient hospitalisation. RESULTS: For families without MB, a significantly higher total score was found in the risk screening (M=3,9 points vs. M=2,9 points) in comparison to families with MB. While families with MB compared to families without MB were faced more frequently by social stressors, e. g., financial problems or a difficult housing situation (81 vs. 37%), they were less frequently impacted by mental strain (27 vs. 48%), young fathers (2 vs. 10%) and maternal psychiatric diseases (3 vs. 17%), according to the risk screening. Socio-economic determinants such as social inclusion and living environment were found to be important factors influencing the psychosocial stress level of families. CONCLUSION: Explanations and implications for research and practice are discussed.


Subject(s)
Developmental Disabilities/diagnosis , Developmental Disabilities/ethnology , Early Intervention, Educational/statistics & numerical data , Early Medical Intervention/statistics & numerical data , Emigrants and Immigrants/statistics & numerical data , Population Surveillance/methods , Adult , Developmental Disabilities/therapy , Family , Female , Germany/ethnology , Humans , Male , Pregnancy , Prevalence , Risk Assessment/methods , Urban Population , Young Adult
10.
Gesundheitswesen ; 77(12): 916-20, 2015 Dec.
Article in German | MEDLINE | ID: mdl-25268416

ABSTRACT

INTRODUCTION: Since 1971 routine child health check-ups allow the routine identification of dis-eases in children and adolescents. Paediatricians play a central role in health prevention in childhood and adolescence and are - on account of their acceptance and admission requirements - important actors in child protection. Thus, paediatric practitioners were actively involved in the invitation and reporting system for the routine child health check-ups (U6 and U7), which was introduced to increase participation rates and improve child protection in Hamburg. METHOD: By means of a questionnaire survey, all paediatric practitioners practicing in Hamburg were asked a year after introduction of the invitation and reporting system to report on their practical experience, and to share their assessment and criticism of the system (response rate 73%). RESULTS: Out of 110 participating pediatricians (M=19.5 years practical experience), 81% evaluated the invitation and reporting system as very useful, useful or rather useful; 83% supported an expansion of the system for routine child health check-ups, and about 18% observed an increased utilisation of routine child health check-ups especially from families with a migrant background and by socially-disadvantaged families. Criticism was made concerning ineffective procedures. CONCLUSION: The invitation and reporting system for routine child health check-ups in Hamburg shows how pediatricians can be integrated into the network of prevention and child welfare. It also shows their support of this system. Paying more systematic attention and an interdisciplinary network connecting paediatricians may contribute to a more comprehensive prevention and child protection.


Subject(s)
Child Abuse/diagnosis , Child Abuse/prevention & control , Child Protective Services/statistics & numerical data , Health Promotion/statistics & numerical data , Mandatory Reporting , Pediatricians/statistics & numerical data , Adolescent , Child , Child Health/statistics & numerical data , Child Health Services/statistics & numerical data , Child Welfare/statistics & numerical data , Child, Preschool , Female , Germany/epidemiology , Humans , Male , Mass Screening/statistics & numerical data , Physical Examination/statistics & numerical data , Physician's Role
11.
Gesundheitswesen ; 77 Suppl 1: S87-8, 2015 Sep.
Article in German | MEDLINE | ID: mdl-23572469

ABSTRACT

The "parental folder" is meant as a primary prevention programme for children starting at birth with the aim to give access to relevant health knowledge to all parents and to strengthen the parental competence in doctor-parent communication. In a sample of N=1,634 families the effects of the folder were examined in a randomized controlled study in the federal states Rhineland-Palatinate and Saxony. In addition N=103 experts were asked for their valuation of the folder.


Subject(s)
Consumer Health Information/statistics & numerical data , Health Behavior , Health Promotion/statistics & numerical data , Information Seeking Behavior , Primary Prevention/statistics & numerical data , Utilization Review , Adult , Female , Germany , Humans , Male , Middle Aged , Parent-Child Relations , Parenting , Parents/education , Young Adult
12.
Mycoses ; 42(5-6): 371-83, 1999.
Article in English | MEDLINE | ID: mdl-10536429

ABSTRACT

A total of 277 Candida isolates from various body sites of 149 AIDS and cancer patients treated in four different university clinics in Würzburg, Germany were collected over a period of 27 months and phenotypically and genotypically characterized. The fingerprinting patterns of 194 Candida albicans isolates obtained with the moderately repetitive, C. albicans-specific DNA fragment CARE-2 were digitized and retrospectively compared with a highly accurate computer-assisted standardization method. A total of 168 different genotypic patterns (< 100% identity) could be differentiated using this technique. Although comparative analysis of C. albicans subsets revealed a pronounced tendency of C. albicans isolates from HIV patients to form clusters, the mean genetic variability in HIV and cancer patient isolates was virtually identical. Patients with a specific disease condition or in a certain age group were not found to harbour C. albicans isolates displaying a characteristic "signature genotype". Micro-evolutionary changes were detected by CARE-2 fingerprinting in temporal successive isolates of one patient, but nosocomial transmission of identical isolates between unrelated patients was never seen. Genotyping showed that patient isolates can replace one another; occasionally also species switches were observed. Secreted aspartic protease (SAP) production was not correlated with a specific C. albicans banding pattern; isolates obtained from HIV patients and from an internal control group secreted comparable amounts of SAP. Candida dubliniensis isolates in this study showed an elevated level of SAP production. When used under standardized conditions, CARE-2 fingerprinting is an efficient, reproducible and sensitive technique to characterize C. albicans isolates.


Subject(s)
Acquired Immunodeficiency Syndrome/complications , Candida albicans/genetics , Candidiasis/epidemiology , DNA Fingerprinting/standards , Neoplasms/complications , Adult , Aged , Aged, 80 and over , Candida albicans/classification , Candidiasis/complications , Cluster Analysis , DNA, Fungal/genetics , Female , Genotype , Germany/epidemiology , Humans , Male , Middle Aged , Molecular Epidemiology , Mouth/microbiology , Repetitive Sequences, Nucleic Acid
13.
Mycoses ; 42(1-2): 67-70, 1999 Apr.
Article in English | MEDLINE | ID: mdl-10394851

ABSTRACT

Our previous studies of the ribosomal DNA variation in dermatophytes have shown that these fungi are monophyletic in origin. However, this approach did not allow us to differentiate all the species defined by classical means. Therefore, we studied the internal transcribed spacer 1 (ITS 1) region of 17 species of the fungal order Onygenales, comprising the pathogenic keratinophilic fungi. Interspecific nucleotide composition and sequence length variation of the ITS 1 region was high, mean identities were as low as 40% and sequence lengths varied from 169 to 293 basepairs. Each established dermatophyte species could be identified. In contrast, the flanking sequences at the 3' end of 18S and the 5.8S rDNA were conserved. Although the value of the ITS 1 region as a phylogenetic tool may be limited because of its high variability, it provides the information necessary to design species-specific probes, or polymerase chain reaction restriction fragment polymorphism systems useful for taxonomic or rapid diagnostic tests.


Subject(s)
Arthrodermataceae/classification , Arthrodermataceae/genetics , Dermatomycoses/diagnosis , Dermatomycoses/microbiology , Mycological Typing Techniques , DNA, Fungal/analysis , DNA, Ribosomal/analysis , Humans , Molecular Sequence Data , Polymerase Chain Reaction/methods , Soil Microbiology , Species Specificity
14.
Br J Dermatol ; 140(3): 480-2, 1999 Mar.
Article in English | MEDLINE | ID: mdl-10233270

ABSTRACT

Thirty-five patients with mycologically proven scalp infections were enrolled in a randomized, double-blind clinical trial with oral terbinafine (dose adjusted according to patient weight) for either 1 or 2 weeks. Patients were observed for 12 weeks; after 4 weeks, non-responders were offered an additional 4 weeks of treatment followed by a second observation period. The causative organisms were Microsporum canis (n = 12), Trichophyton tonsurans (n = 12) and other Trichophyton spp. (n = 11). The Trichophyton infections were treated effectively in five of nine (56%) patients treated for 1 week and 12 of 14 (86%) patients treated for 2 weeks. Three of the non-responders were treated for an additional 4 weeks, and one responded. In the Microsporum group only one of seven patients treated for 1 week and none of five treated for 2 weeks responded. However, treatment was effective in four of six (66%) patients treated for an additional 4 weeks. Mild to moderate adverse events believed to be drug related occurred in four patients in each of the two groups. Terbinafine is well tolerated, and requires 2 weeks of treatment in most patients with Trichophyton scalp infections and 4 weeks or more in Microsporum scalp infections, to achieve a successful clinical and mycological response.


Subject(s)
Antifungal Agents/therapeutic use , Naphthalenes/therapeutic use , Tinea Capitis/drug therapy , Adolescent , Child , Child, Preschool , Clinical Protocols , Double-Blind Method , Female , Humans , Infant , Male , Microsporum , Terbinafine , Tinea Capitis/microbiology , Treatment Outcome , Trichophyton
16.
Hautarzt ; 47(8): 638-41, 1996 Aug.
Article in German | MEDLINE | ID: mdl-8964708

ABSTRACT

White piedra is a rare hair infection of man and certain animals, caused by the widespread Trichosporon fungi. The infection is characterized clinically by whitish, soft and easily removable coating of the hair shafts; however, the shafts may be destroyed by the pathogens invading at localized points. While all body hair may be affected, the pubic hair is most frequently affected. This paper is the first report genital white piedra in a 34-year-old Central European man. In all, 22 cases have been described world-wide in young men ranging in age from 20 to 40 years. Only 2 men, aged 42 and 53 years, do not fall in this range. Recently, a major African study disclosed this disease in women for the first time. In moderate latitudes, however, this infection appears to occur almost exclusively in young men.


Subject(s)
Genital Diseases, Male/diagnosis , Hair Diseases/diagnosis , Mycoses/diagnosis , Trichosporon , Adult , Diagnosis, Differential , Female , Humans , Male , Middle Aged , Trichosporon/isolation & purification
17.
Hautarzt ; 46(12): 854-7, 1995 Dec.
Article in German | MEDLINE | ID: mdl-8567270

ABSTRACT

Tinea capitis and corporis caused by Trichophyton soudanense were identified in a 6-year-old coloured boy who was born in Zaire and had been living for 3 years in Germany. This dermatophyte is very rarely seen outside the region in Africa where it is endemic. The disease is frequently overlooked at diagnosis because of the pathogen's capacity for causing chronic and oligosymptomatic infections. In our case the tinea did not a become apparent until the patient had been in Germany for 3 years. No-one else in his family had any comparable scalp or skin lesions. Consistent therapy with itraconazole (Sempera) dosed at 3 mg/kg body weight per day over a period of 4 weeks led to a permanent cure.


Subject(s)
Tinea Capitis/microbiology , Trichophyton , Black People , Child , Democratic Republic of the Congo/ethnology , Dose-Response Relationship, Drug , Drug Administration Schedule , Germany , Humans , Itraconazole/administration & dosage , Male , Scalp/microbiology , Scalp/pathology , Tinea Capitis/drug therapy , Tinea Capitis/pathology , Trichophyton/drug effects , Trichophyton/isolation & purification
19.
J Med Vet Mycol ; 33(5): 299-303, 1995.
Article in English | MEDLINE | ID: mdl-8544082

ABSTRACT

The phylogenetic relationship of representative members of the genera Trichophyton, Microsporum and Epidermophyton was studied. 844 base pairs were compared after sequencing the nuclear 18S ribosomal RNA gene spanning the most variable area within the central 600 bases of this gene. The dermatophytes, which are monophyletic in origin, could be classified most effectively when placed as a subgroup in the Onygenales, Ascomycotina. The calculated radiation time was about 50 million years ago. The early cenozoic adaptive explosion of mammals, which can serve as a host for the keratinophilic fungi, provides corroboration for proximate co-evolution.


Subject(s)
Arthrodermataceae/genetics , Phylogeny , RNA, Fungal/genetics , RNA, Ribosomal, 18S/genetics , Biological Evolution , Molecular Sequence Data
20.
Mycoses ; 38(1-2): 1-7, 1995.
Article in English | MEDLINE | ID: mdl-7637676

ABSTRACT

Trichophyton rubrum has led to unprecedented worldwide suppression of other dermatophytes which had been predominant earlier as a causative agent of superficial dermatomycoses. In tinea capitis on the other hand, several other species of Trichophyton or Microsporum are dominant depending on the region or continent. Tinea capitis caused by T. rubrum is a rare event worldwide. Occasional concentrations may be explained by several cases occurring by chance in one family or community. The relative frequency of this causative agent in tinea capitis in children is under 1%. In adults, however, where tinea capitis occurs very infrequently indeed, the incidence of T. rubrum appears to exceed 10%. Apart from two studies from India, one from Iran, two from Portugal and observations from Germany, which in the first country report of around 30% of all cases published, while the others document some 10% each, there are not only any conspicuous, unequivocal concentrations at all. Increased frequency of T. rubrum in this clinical picture has not been easily recognizable over the last decades due to low absolute case numbers.


Subject(s)
Tinea Capitis/microbiology , Trichophyton/isolation & purification , Humans , Incidence
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