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At least 1,117 records · Page 62Linked to original sources
PubMed1991

Blepharitis--a diagnostic and therapeutic challenge. A report on 407 consecutive cases.

Over the last few years the number of patients with chronic bilateral blepharitis has increased dramatically. From January 1985 until the end of 1989, a total of 407 patients with this diagnosis underwent ophthalmological and dermatological investigations at our out-patient clinic. Keratoconjunctivitis sicca (KCS) in conjunction with blepharitis occurred in 14.5% of the patient population who also suffered from acne rosacea. A comparison of the spectrum of microorganisms that have previously been isolated from affected sites with data obtained in the present study revealed that the range of microorganisms associated with this chronic localized inflammation has apparently shifted in recent years. The prevalence of Staphylococcus aureus, which was considerable in the pre-antibiotic era, has markedly decreased, although a distinct entity of staphylococcal blepharitis seems to remain, either alone or in combination with seborrheic blepharitis (62.8% of our patients). The clinical picture, microbiological findings and therapy for this condition are presented.

Adolescent↗
PubMed2004

Determination of flavonoids, tannins and ellagic acid in leaves from Rubus L. species.

This paper describes the quantitative determination of flavonoids, tannins and ellagic acid in the leaves from wild and cultivated variations of Rubus L. species (Rosaceae): raspberry (2 wild and 13 cultivars) and blackberry (3 wild and 3 cultivars). The content of flavonoids was analyzed using spectrophotometric (the Christ-Mullers method) and HPLC analysis after acid hydrolysis. The content of tannins was determined by the weight method, with hide powder, described by German Pharmacopoeia 10 (DAB 10). Ellagic acid content was examined using the HPLC method after acid hydrolysis. Flavonoid content, determined using the Christ-Muller's method was higher for the blackberry leaves than for the raspberry leaves and varied between 0.46% and 1.05%. Quercetin and kaempferol were predominant in all samples analyzed using the HPLC method. The highest flavonoid content was found in the leaves of R. nessensis (1.06%); with results in all of the examined samples varying between 0.27% and 1.06%. The concentration of ellagic acid in all species was determined after acid hydrolysis and ranged from 2.06% to 6.89%. The leaves of raspberries are characterized by greater amounts of tannins (varying between 2.62% and 6.87%) than the leaves of other species. The results from this study indicate that the analyzed species are a rich source of flavonoids, ellagic acid and tannins, which may be used for the quality assessment of Rubus L. species leaves.

Chromatography, High Pressure Liquid↗
PubMed1995

[Morbihan disease--chronic persistent erythema and edema of the face].

Morbihan's disease was first reported as a distinct entity in 1957 by Degos, describing a chronic persistent erythema and oedema of the upper half of the face. Such conditions have been noted in the literature designated as chronic lymphoedema or solid persistent facial oedema in acne or rosacea. The characteristic features are a chronic course, a typical clinical picture, lack of specific laboratory and histological findings and refractoriness to therapeutic measures.

Adipose Tissue↗
PubMed2002

Genetic linkage maps constructed by using an interspecific cross between Japanese and European pears.

Genetic linkage maps of the European pear ( Pyrus communis L.) cultivar 'Bartlett' and the Japanese pear ( Pyrus pyrifolia Nakai) cultivar 'Housui' were constructed based on AFLPs, SSRs from pear, apple and Prunus, isozymes and phenotypic traits by using their F(1) progenies. The map of the female parent Bartlett consisted of 226 loci including 175 AFLPs, 49 SSRs, one isozyme and one S locus on 18 linkage groups over a total length of 949 cM, while that for 'Housui' contained 154 loci including 106 AFLPs, 42 SSRs, two phenotypic traits and the other four markers on 17 linkage groups encompassing a genetic distance of 926 cM. These maps were partially aligned using 20 codominant markers which showed segregating alleles in both parents. Compared with the reports of apple genetic maps, these pear maps were not saturated but were near saturation. Distorted segregation was observed in two and one regions of the genome of Bartlett and Housui, respectively. The position of 14 SSRs originating from apple could be successfully determined in pear maps, which enabled us to compare the two maps. Some SSRs developed from Prunus (peach, cherry) were also mapped. The relationships between pear and the other species belonging to the Rosaceae were discussed based on the position of SSRs.

Chromosome Mapping↗
PubMed2006

TRIM retrotransposons occur in apple and are polymorphic between varieties but not sports.

Retrotransposon markers have been demonstrated to be powerful tools for investigating linkage, evolution and genetics diversity in plants. In the present study, we identified and cloned three full-size TRIM (terminal-repeat retrotransposon in miniature) group retrotransposon elements from apple (Malus domestica) cv. 'Antonovka', the first from the Rosaceae. To investigate their utility as markers, we designed primers to match the long terminal repeats (LTRs) of the apple TRIM sequences. We found that PCR reactions with even a single primer produced multiple bands, suggesting that the copy number of these TRIM elements is relatively high, and that they may be locally clustered or nested in the genome. Furthermore, the apple TRIM primers employed in IRAP (inter-retrotransposon amplified polymorphism) or REMAP (retrotransposon-microsatellite amplified polymorphism) analyses produced unique, reproducible profiles for 12 standard apple cultivars. On the other hand, all seven of the sport mutations in this study were identical to their mother cultivar. Genetic similarity values calculated from the IRAP/REMAP analyses or the STMS (sequence tagged microsatellite sites) analysis were generally comparable. PAUP cluster analysis based on IRAP and REMAP markers in apple and Japanese quince generated an NJ tree that is in good accordance with both a tree based on SMTS markers and the origin of the studied samples. Our results demonstrate that, although they do not encode the proteins necessary to carry out a life cycle and are thereby non-autonomous, TRIMs are at least as polymorphic in their insertion patterns as conventional complete retrotransposons.

DNA, Plant↗
PubMed2006

The development and mapping of functional markers in Fragaria and their transferability and potential for mapping in other genera.

We have developed 46 primer pairs from exon sequences flanking polymorphic introns of 23 Fragaria gene sequences and one Malus sequence deposited in the EMBL database. Sequencing of a set of the PCR products amplified with the novel primer pairs in diploid Fragaria showed the products to be homologous to the sequences from which the primers were originally designed. By scoring the segregation of the 24 genes in two diploid Fragaria progenies FV x FN (F. vesca x F. nubicola F(2)) and 815 x 903BC (F. vesca x F. viridis BC(1)) 29 genetic loci at discrete positions on the seven linkage groups previously characterised could be mapped, bringing to 35 the total number of known function genes mapped in Fragaria. Twenty primer pairs, representing 14 genes, amplified a product of the expected size in both Malus and Prunus. To demonstrate the applicability of these gene-specific loci to comparative mapping in Rosaceae, five markers that displayed clear polymorphism between the parents of a Malus and a Prunus mapping population were selected. The markers were then scored and mapped in at least one of the two additional progenies.

Chromosome Mapping↗
PubMed2001

Skin function and skin disorders in Parkinson's disease.

Cutaneous symptoms (seborrhoea and hyperhidrosis) in Parkinson's disease were investigated. In 70 treated patients with Parkinson's disease and 22 control subjects, non-invasive bioengineering methods (sebumetry, corneometry, pH) were carried out on the forehead, sternum and forearm. In addition, concomitant dermatoses and medication were recorded. 18.6% of the patients had seborrhoea on the forehead (>220 microg/cm2), 51.4% showed normal sebum values (100-220 microg/cm2) and 30% a sebostasis (<100 microg/cm2). Males has significantly higher sebum values than females. No relationship between the seborrhoea and the therapy for Morbus Parkinson was found. Patients with hyperhidrosis (n = 36) had significantly lower pH values (p < 0.05) on the forehead than those without hyperhidrosis. 22 patients (31.9%) reported a cold/hot flush and a further 13 (18.8%) had clinical rosacea. Seborrhoea is rare in treated Parkinsonian patients but hyperhidrosis is frequently found. Furthermore, a particular lack of vasostability (flush) appears to be an autonomic dysregulation in the skin related to Morbus Parkinson, which has not been studied to any extent to date.

Aged↗
PubMed1977

Meibomian keratoconjunctivitis.

We evaluated, dermatologically and ophthalmologically, 26 patients who had chronic blepharitis (meibomitis); we also investigated 26 age- and sex-matched controls. All of the blepharitic patients had an abnormality of sebaceous gland function ranging from seborrhea sicca to seborrheic dermatitis or acne rosacea, suggesting a generalized sebaceous gland dysfunction that included the meibomian glands. Sebaceous gland abnormalities most frequently involved the cool areas of the face or scalp. Stagnation of the meibomian glands presumably caused a defect in the tear lipid layer; this resulted in an unstable tear film that produced superficial punctate keratopathy. The break-up time was much lower in these patients than in controls. The break-up time returned to normal or super-normal levels when fresh meibomian secretions were expressed into the tear film. The superficial punctate keratopathy had the characteristics of those seen in conditions with a known unstable tear film and not of those experimentally produced by staphylococcus toxin.

Adult↗
PubMed1980

Rhinophyma in a negro: case report.

A case of rhinophyma in a negro patient is reported. The cause of rhinophyma and its association with acne rosacea is discussed. It is suggested that racial factors may be relevant in this incompletely understood condition.

Adult↗
PubMed1984

Effects of isotretinoin on serum lipids and lipoproteins, liver and thyroid function.

Seven patients with severe rosacea were treated with 1 mg/kg per day isotretinoin for 12 wk. There were significant increases in serum triglyceride (p less than 0.001) and cholesterol (p less than 0.001). Triglyceride associated with very low density lipoprotein (VLDL), low density lipoprotein (LDL) and high density lipoprotein (HDL) increased (p less than 0.01), cholesterol in VLDL and LDL increased (p less than 0.01), and levels of HDL cholesterol decreased (p less than 0.01). There were changes in indices of liver function, with increased levels of gamma-glutamyltransferase (GGT) (p less than 0.01), alkaline phosphatase (ALP) (p less than 0.01) and aspartate aminotransferase (AST) (p less than 0.01), and decreased bilirubin levels (p less than 0.05). Although levels of thyroxine and triiodothyronine were lower after treatment (p less than 0.05), there were no changes in basal levels of thyroid-stimulating hormone (TSH), luteinizing hormone (LH) or follicle-stimulating hormone (FSH), and responses to thyrotrophin releasing hormone (TRH) and luteinizing hormone releasing hormone (LHRH) were unchanged. These changes may partially be explained by induction of hepatic microsomal enzymes by isotretinoin.

Adult↗
PubMed2006

The flushing patient: differential diagnosis, workup, and treatment.

UNLABELLED: Cutaneous flushing-a common presenting complaint to dermatologists, allergists, internists, and family practitioners-results from changes in cutaneous blood flow triggered by multiple conditions. Most cases are caused by very common, benign diseases, such as rosacea or climacterum, that are readily apparent after a thorough taking of history and physical examination. However, in some cases, accurate diagnosis requires further laboratory, radiologic, or histopathologic studies to differentiate several important clinicopathologic entities. In particular, the serious diagnoses of carcinoid syndrome, pheochromocytoma, mastocytosis, and anaphylaxis need to be excluded by laboratory studies. If this work-up is unrevealing, rare causes, such as medullary carcinoma of the thyroid, pancreatic cell tumor, renal carcinoma, and others, should be considered. LEARNING OBJECTIVE: At the completion of this learning activity, participants should be familiar with the mechanisms of flushing, its clinical differential diagnosis, the approach to establish a definitive diagnosis, and management of various conditions that produce flushing.

Alcohol Drinking↗
PubMed2006

Tetracyclines: nonantibiotic properties and their clinical implications.

Tetracyclines are broad-spectrum antibiotics that act as such at the ribosomal level where they interfere with protein synthesis. They were first widely prescribed by dermatologists in the early 1950s when it was discovered that they were effective as a treatment for acne. More recently, biologic actions affecting inflammation, proteolysis, angiogenesis, apoptosis, metal chelation, ionophoresis, and bone metabolism have been researched. The therapeutic effects of tetracycline and its analogues in various diseases have also been investigated. These include rosacea, bullous dermatoses, neutrophilic diseases, pyoderma gangrenosum, sarcoidosis, aortic aneurysms, cancer metastasis, periodontitis, and autoimmune disorders such as rheumatoid arthritis and scleroderma. We review the nonantibiotic properties of tetracycline and its analogues and their potential for clinical application.

Acne Vulgaris↗
PubMed2004

Anti-nociceptive and anti-inflammatory activities of the methanolic extract of Parinari polyandra stem bark in rats and mice.

The methanolic extract of the stem bark of Parinari polyandra (family Rosaceae) was investigated for possible anti-nociceptive and anti-inflammatory effects in mice and rats. Three models were used to study the extracts effects on nociception which were the acetic acid-induced abdominal constriction test, hot-plate method (both in mice) and the formalin test in rats. The anti-inflammatory effects were investigated employing the albumin-induced hind-paw oedema in rats. Results of the study revealed the extract to have significant (P<0.05) anti-nociceptive effect at a dose of 200 mg/kg p.o. in mice and rats in all the models for anti-nociception while 100 mg/kg p.o. showed significant (P<0.05) effect in the acetic acid-induced abdominal constriction test and in phase I of the formalin test. The extract also exhibited anti-inflammatory effects which were found to be significant (P<0.05) at 200 mg/kg p.o. in the rats tested. Preliminary phytochemical screening of the extract showed the presence of flavonoids, tannins, and saponin glycoside. The results suggest the extract contains pharmacologically active principles. The result is in agreement with the local application of the plant in painful and inflammatory conditions.

Analgesics↗
PubMed2002

An aqueous extract of Rubus chingii fruits protects primary rat hepatocytes against tert-butyl hydroperoxide induced oxidative stress.

Different in vitro free radical generating systems were used to assess the antioxidative activity of aqueous extracts of the five herbal components of Wu-zi-yan-zong-wan, a traditional Chinese medicinal formula with a long history of use for tonic effects. Fructus Rubi [Rubus chingii (Rosaceae) fruits] was found to be the most potent. It was further investigated using the primary rat hepatocyte system. tert-Butyl hydroperoxide (t-BHP) was used to induce oxidative stress. Being a short chain analog of lipid hydroperoxide, t-BHP is metabolized into free radical intermediates by the cytochrome P450 system in hepatocytes, which in turn, initiate lipid peroxidation, glutathione depletion and cell damage. Pre-treatment of hepatocytes with Fructus Rubi extract (50 microg/ml to 200 microg/ml) for 24 h significantly reversed t-BHP-induced cell viability loss, lactate dehydrogenase leakage and the associated glutathione depletion and lipid peroxidation. The amount of reactive oxygen species formed was also decreased as visualized by the fluorescence probe 2',7'-dichlorofluorescin diacetate. These results suggested that Fructus Rubi was useful in protecting against t-BHP-induced oxidative damage and may also be capable of attenuating cytotoxicity of other oxidants.

Animals↗
PubMed1986

Treatment of the red nose with the argon laser.

Nasal telangiectasias, a common condition, can be caused by chronic exposure to ultraviolet light, rosacea, topically applied corticosteroids, or rhinoplasty. Use of the argon laser for 15 to 45 minutes in a continuous mode over the entire involved area can produce considerable lightening of the nasal redness and improvement in the cosmetic appearance, as illustrated in the two cases described in this report.

Follow-Up Studies↗
PubMed1987

CO2 laser vaporization for treatment of rhinophyma.

Rhinophyma is the end stage of acne rosacea, which results in a large nose due to a proliferation of sebaceous glands and fibrous tissue. In some patients, this disorder is a cosmetic problem. Use of the CO2 laser in the defocused mode to vaporize skin in a bloodless fashion is an effective treatment of rhinophyma, as demonstrated in three patients described in this report.

Aged↗
PubMed2002

Production of bioactive triterpenes by Eriobotrya japonica calli.

Callus tissue cultures induced from an axenic leaf of Eriobotrya japonica (Rosaceae) produced triterpenes in large amounts (ca. 50 mg/g dry wt). Nine triterpenes were characterized as ursolic acid, oleanolic acid, 2alpha-hydoxyursolic acid, maslinic acid, tormentic acid, 2alpha, 19alpha-dihydroxy-3-oxo-urs-12-en-28-oic acid, hyptadienic acid and a mixture of 3-O-cis-p-coumaroyltormentic acid and 3-O-trans-p-coumaroyltormentic acid. The triterpene composition in the callus tissues was noticeably different from that in intact leaves. The contents of tormentic acid with antidiabetic action, and 2alpha, 19alpha-dihydroxy-3-oxo-urs-12-en-28-oic acid with anti-HIV activity, were much larger than those in the intact leaves. All of the triterpenes isolated from the callus tissues showed an inhibitory effect comparable to (-)-epigallocatechin gallate (EGCG) of green tea on the activation of Epstein-Barr virus early antigen (EBV-EA) induced by 12-O-tetradecanoylphorbol-13-acetate (TPA). 2alpha, 19alpha-Dihydroxy-3-oxo-urs-12-en-28-oic acid was the most potent inhibitor among them and caused a significant delay of two-stage carcinogenesis on mouse skin.

Animals↗
PubMedDate not supplied

Dermatologic diagnosis and treatment of itchy red eyelids.

Distinguishing the cause of itching, red eyelids is often difficult. Pruritic, inflamed eyelids can reflect various etiologies and are a common clinical presentation to the office of a dermatologist or ophthalmologist. In this article, five of the more common causes of eyelid dermatitis (atopic dermatitis, contact dermatitis, contact urticaria, rosacea, seborrhea, and psoriasis) are reviewed in detail, with particular emphasis on the ocular and periocular features. Clinical clues, historical features, and patch testing in cases of eczematous eyelid dermatitis aid in differential diagnosis. In addition, pathogenesis and treatment are reviewed.

Dermatitis, Allergic Contact↗