Clinical Considerations In The Treatment Of Acne Vulgaris

Propionibacterium acnes is an anaerobic bacterium that plays an important role in the pathogenesis of acne. Certain antibiotics that can inhibit P acnes colonization also have demonstrated anti-inflammatory activities in the treatment of acne, rosacea, and other noninfectious diseases.

Decreased sensitivity of P acnes to antibiotics, such as erythromycin and tetracycline, has developed and may be associated with therapeutic failure. Benzoyl peroxide (BPO) is a nonantibiotic antibacterial agent that is highly effective against P acnes and for which no resistance against it has been detected to date.

Retinoids are important components in combination therapy for acne, including use with antibiotics, and can serve as an alternative to these agents in maintenance therapy. By increasing our understanding of the multifaceted actions of antibiotics and the known clinical implications of antibiotic resistance, physicians can improve their decision making in prescribing these agents.

"Clinical considerations in the treatment of acne vulgaris and other inflammatory skin disorders: focus on antibiotic resistance"
Leyden JJ, Del Rosso JQ, Webster GF
Cutis. 2007 Jun ; 79(6 Suppl): 9-25 (Hubmed.org)

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Prevalence Of And Associated Factors For Dry Eye In A Spanish adult population

To estimate the prevalence of dry eye and to investigate its relationship with lifestyle and systemic factors in a general adult population in north-western Spain. METHODS: A dry eye questionnaire was administered and objective tests were performed in 654 individuals [mean age (Standard deviation): 63.6 (14.4) years, range: 40-96, 37.2% males]. Subjects were considered symptomatic when one or more of the symptoms of the questionnaire were present often or all the time. Schirmer test or= 3 and fluorescein staining >or= 1 were considered indicative of signs. Dry eye was defined as the simultaneous presence of symptoms and at least one sign. A design based analysis was performed and all calculations were weighted to give unbiased estimates. RESULTS: Dry eye prevalence was 11.0% (95%confidence interval [CI] 8.6-13.3). Dry eye was found to be more frequent in women (11.9%, 95%CI 8.8-15.1) than in men (9.0%, 95%CI 5.3-12.6), and was significantly associated with aging (p autoimmune diseas...

Skin findings in thyroid diseases.

Eur J Intern Med. 2009 Mar; 20(2): 158-61ArtantaÅŸ S, GÃ¼l U, KiliÃ§ A, GÃ¼ler SBACKGROUND: In cases of thyroid diseases, many of the symptoms arise on the skin. In this study, we aimed to detect and compare the skin findings and accompanying dermatoses of patients with thyroid diseases. MATERIALS AND METHODS: 220 patients with thyroid diseases, who did not have any medical cure, and 90 healthy individuals as a control group attended our study. All of the cases were examined, and the skin findings and/or dermatoses were recorded. The skin findings in the patients and the control group were compared statistically. RESULTS: Among 220 cases, in 125 (56.8%) skin findings were detected. The most frequently observed skin findings were chronic urticaria (6.8%), vitiligo (6.8%), diffuse alopecia (6%), acne vulgaris (5%) and acne rosacea (3.6%). No significant difference was detected statistically between the patients and control group in terms of skin findings. When compared for the presence ...

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