Abstract：
:Calcium and 1,25 dihydroxyvitamin D3 (1,25(OH)2D3) are promoters of epithelial cell functions; however their effects on sebaceous glands are unknown. In this study, morphology, ultrastructure, cell numbers, lipid synthesis and apoptosis of SZ95 sebocytes were assessed in vitro under different concentrations of extracellular calcium with or without 1,25(OH)2D3. Moreover, serum calcium and 1,25(OH)2D3 levels were assessed in acne and non-acne patients (controls). Under conditions of low extracellular calcium, lipogenesis and cell detachment were observed. Increasing extracellular calcium enhanced sebocyte numbers, induced epithelial morphology and reduced lipogenesis. Moreover, a reduction in extracellular calcium reduced E-cadherin and enhanced caspase 3/7 activity (apoptosis), whereas calcium chelation by EGTA (ethylene glycol-bis(β-aminoethyl ether)-N,N,N',N'-tetraacetic acid) resulted in enhanced lipogenesis. 1,25(OH)2D3 decreased sebaceous lipogenesis, but also induced signs of autophagy. In the clinical study, patients and controls exhibited normal serum calcium levels. Younger acne patients presented lower 1,25(OH)2D3 levels than did older ones. In conclusion, extracellular calcium and 1,25(OH)2D3 regulate sebocyte morphology, increase cell numbers, decrease sebaceous lipogenesis and induce cell autophagy in vitro. The increased ionized calcium and the reduced 1,25(OH)2D3 levels detected in the serum of younger patients with acne may contribute respectively to increased sebaceous gland volume and enhanced lipogenesis.
journal_name
Acta Derm Venereoljournal_title
Acta dermato-venereologicaauthors
Zouboulis CC,Seltmann H,Abdel-Naser MB,Hossini AM,Menon GK,Kubba Rdoi
10.2340/00015555-2525subject
Has Abstractpub_date
2017-03-10 00:00:00pages
313-320issue
3eissn
0001-5555issn
1651-2057journal_volume
97pub_type
杂志文章abstract：:Basement membrane (BM) disruption and dermal changes (elastosis, collagenolysis, vascular ectasia) have been reported in melasma. Although ultraviolet (UV) irradiation can induce these changes, UV is not always necessary for melasma development. Cadherin 11 (CDH11), which is upregulated in some melasma patients, has p...
journal_title：Acta dermato-venereologica
pub_type： 杂志文章
doi：10.2340/00015555-2315
更新日期：2016-06-15 00:00:00
abstract：:EMLA cream, which is used to provide analgesia prior to venepuncture, induces a skin-blanching reaction. This reaction may be caused by both skin hydration and vasoconstriction. Twenty healthy children with veins suitable for venepuncture on the dorsa of the hands or at the antecubital fossae had applied either EMLA c...
journal_title：Acta dermato-venereologica
pub_type： 临床试验,杂志文章,随机对照试验
doi：10.1080/000155500459268
更新日期：2000-09-01 00:00:00
abstract：:Retinoid transfer into breast milk was studied in a psoriatric woman receiving oral acitretin at a dosage of 40 mg once daily. Concentrations of the parent compound and its main metabolite, 13-cis acitretin, were measured in serum and mature milk during the initial nine days of therapy, using reverse-phase high perfor...
journal_title：Acta dermato-venereologica
pub_type： 杂志文章
doi：102340/0001555570487490
更新日期：1990-01-01 00:00:00
abstract：:To assess the role of epidermal melanin in a patient with porphyria variegata and vitiligo, the MED was determined in pigmented and vitiliginous skin for wavelengths of 310, 405 and 500 nm. The energy required to elicit erythema by irradiating vitiliginous skin at 310 nm was half that for pigmented skin. For 405 nm th...
journal_title：Acta dermato-venereologica
pub_type： 杂志文章
doi：10.2340/0001555581612328
更新日期：1981-01-01 00:00:00
abstract：:Eighty-two cases of nodular panniculitis of the legs were examined clinically, histologically and immunohistologically. Clinically the cases could be divided into four groups: typical erythema nodosum (ENty) (35 cases), erythema nodosum migrans (ENmi) (11 cases), erythema induratum (EI) (11 cases) and the remaining 25...
journal_title：Acta dermato-venereologica
pub_type： 杂志文章
doi：
更新日期：1977-01-01 00:00:00
abstract：:A patient with the Klippel Trenaunay Weber syndrome presented with prolonged bleeding from the finger tips during strenuous exercise. Tissue fibrinolysis studies showed increased fibrinolytic activity suggesting that the blood vessels in the affected limb may be functionally as well as anatomically abnormal. ...
journal_title：Acta dermato-venereologica
pub_type： 杂志文章
doi：
更新日期：1982-01-01 00:00:00
abstract：:Previous immunofluorescence studies on pyoderma gangrenosum (PG) proved negative. Biopsies from the ulcer edge of 8 patients with PG were examined by immunofluorescence microscopy. Deposits of complement C3 were seen in the vessel walls of all samples, IgM in three and IgA in one. Granular deposits of C3 were seen at ...
journal_title：Acta dermato-venereologica
pub_type： 杂志文章
doi：10.2340/0001555562340341
更新日期：1982-01-01 00:00:00
abstract：:Systemic contact dermatitis may occur in contact-sensitized individuals when they are exposed to haptens orally, transcutaneously, intravenously or by inhalation. We report the case of a woman developing a diffuse skin eruption after the topical use of Rhus toxicodendron alcoholic extract and the oral introduction of ...
journal_title：Acta dermato-venereologica
pub_type： 杂志文章
doi：10.1080/00015550410023293
更新日期：2004-01-01 00:00:00
abstract：:Eye colour, hair colour and skin colour are important risk factors for malignant melanoma and non-melanoma skin cancers. There are few studies in which the distribution of these pigmentary factors in risk populations has been assessed. The purpose of this study was to investigate the prevalence of the major eye and ha...
journal_title：Acta dermato-venereologica
pub_type： 杂志文章
doi：10.1080/000155598441567
更新日期：1998-05-01 00:00:00
abstract：:Many patients with moderate-to-severe plaque psoriasis do not respond adequately to methotrexate monotherapy. This pilot study, with a small patient population, was performed to evaluate the effectiveness and safety of etanercept and methotrexate combination in patients with plaque psoriasis and inadequate response to...
journal_title：Acta dermato-venereologica
pub_type： 杂志文章,多中心研究,随机对照试验
doi：10.2340/00015555-0511
更新日期：2008-01-01 00:00:00
abstract：:In 13 patients with contact allergy to sesame oil, studies were undertaken to elucidate the nature of the allergens. Sesamol, sesamin and sesamolin were identified in crude and purified (pharmaceutical) sesame oil. Patch tests showed 8 of the 13 patients to be positive to sesamol and 12 to sesamolin and sesamin. Patch...
journal_title：Acta dermato-venereologica
pub_type： 杂志文章
doi：
更新日期：1975-01-01 00:00:00
abstract：:In 94% of the patients with dermatitis herpetiformis, a locally applied ointment with an ester of nicotinic acid (Trafuril) induced an abnormal reaction with erythema, edema, papules, and often vesicles. The appearance of the reaction to Trafuril is similar to DH lesions. It differs markedly from the reactions to iodi...
journal_title：Acta dermato-venereologica
pub_type： 杂志文章
doi：
更新日期：1975-01-01 00:00:00
abstract：:Carvone (l-carvone), a mint flavour in spearmint oil, is considered a mild skin sensitizer. Carvone-sensitization may be linked to oral/perioral signs and oral lichen planus, but studies are sparse. The prevalence of patch test reactions to carvone and relevant findings from the positive group were investigated. Recor...
journal_title：Acta dermato-venereologica
pub_type： 杂志文章
doi：10.2340/00015555-3009
更新日期：2018-11-05 00:00:00
abstract：:A report is given of the successful treatment with transfer factor as an additional therapeutic agent of a patient in the tumour stage of mycosis fungoides who had not responded to conventional treatment with nitrogen mustard, methotrexate, or grenz rays alone. Besides twelve injections of transfer factor, the patient...
journal_title：Acta dermato-venereologica
pub_type： 杂志文章
doi：
更新日期：1979-01-01 00:00:00
abstract：:The incidence of refractory atopic dermatitis has increased in teenagers and young adults. The purpose of this study was to control the skin symptoms of such patients in daily life. Seventy patients repeatedly took a 10-min 42 degrees C acidic hot-spring bath twice daily. The skin symptoms were improved in 76% of case...
journal_title：Acta dermato-venereologica
pub_type： 临床试验,杂志文章
doi：10.2340/0001555577452454
更新日期：1997-11-01 00:00:00
abstract：:Lymphocytes in chronic lymphocytic leukaemia and in other malignant lymphomas exhibit an extreme sensitivity to colchicine and are cytolysed in vitro by 10(-6) M colchicine. This characteristic can be quantified with the colchicine sensitivity index which is used for diagnostic purposes. We have demonstrated that lymp...
journal_title：Acta dermato-venereologica
pub_type： 杂志文章
doi：
更新日期：1980-01-01 00:00:00
abstract：:The antibody activities and complement fixing ability of the IgG subclass antibodies of herpes gestationis (HG) and bullous pemphigoid (BP) antibodies were investigated. IgG was prepared by DEAE Affi-Gel Blue column. IgG3 and IgG 1.2.4 fractions were isolated through Protein-A Sepharose CL-4B column. In HG, neither Ig...
journal_title：Acta dermato-venereologica
pub_type： 杂志文章
doi：
更新日期：1989-01-01 00:00:00
abstract：:An E.M. study was carried out to investigate whether Mycobacterium leprae occur intracellularly in epidermal melanocytes. As this could not be confirmed, the selective killing of melanocytes by cytotoxic lymphocytes could not explain the hypopigmentation in types of leprosy with a relative good immune response. There...
journal_title：Acta dermato-venereologica
pub_type： 杂志文章
doi：
更新日期：1977-01-01 00:00:00
abstract：:The combination of hydroxyzine and cimetidine is reported to be more effective than hydroxyzine alone in chronic urticaria. The plasma concentration of hydroxyzine was studied in seven patients treated both with the hydroxyzine 25 mg t.i.d. and the combinations of hydroxyzine 25 mg and cimetidine 200 mg t.i.d. Hydroxy...
journal_title：Acta dermato-venereologica
pub_type： 杂志文章
doi：
更新日期：1986-01-01 00:00:00
abstract：:Cinnamic alcohol and cinnamic aldehyde are a cause of allergic contact dermatitis in man and give rise to similar rates of positive reactions in routine patch testing. However, data from animal models indicates that the aldehyde is the stronger sensitizer of the two. Circumstantial evidence has pointed to the conversi...
journal_title：Acta dermato-venereologica
pub_type： 杂志文章
doi：102340/0001555572264265
更新日期：1992-08-01 00:00:00
abstract：:Although pemphigus has recently been linked to psoriasis, the risk of emergence of pemphigus during the course of psoriasis is yet to be delineated. The aim of this study was to evaluate the risk of developing pemphigus during the course of psoriasis. A large-scale population-based longitudinal retrospective cohort st...
journal_title：Acta dermato-venereologica
pub_type： 杂志文章
doi：10.2340/00015555-3607
更新日期：2020-10-20 00:00:00
abstract：:Blister fluid from tense bullae of 10 patients with bullous pemphigoid was investigated using a radial caseinolysis assay and zymography. Proteolytic activity, varying from 4.7 to 10 micrograms/ml, was found in 3 out of 10 patients, by using the caseinolysis assay. Zymography revealed that a major part of this caseino...
journal_title：Acta dermato-venereologica
pub_type： 杂志文章
doi：
更新日期：1989-01-01 00:00:00
abstract：:Pruritus is exacerbated at night in many systemic and dermatological diseases, resulting in reports of significantly diminished quality of life and sleep disturbances. At present, the underlying mechanisms responsible for night-time itching are not well understood. Nocturnal pruritus may be related to the circadian rh...
journal_title：Acta dermato-venereologica
pub_type： 杂志文章,评审
doi：10.2340/00015555-0280
更新日期：2007-01-01 00:00:00
abstract：:Skin microdialysis is an established method for in vivo sample collection from the extracellular fluid space. This method has been extensively used in studies of inflammatory reactions in the skin of animals and humans. Skin microdialysis consists of the implantation of semi-permeable probes into the upper dermis, per...
journal_title：Acta dermato-venereologica
pub_type： 杂志文章,评审
doi：10.2340/00015555-1878
更新日期：2014-09-01 00:00:00
abstract：:Basal cell carcinoma (BCC) is the most common form of cancer worldwide. Exposure of the skin to ultraviolet (UV) radiation, from sunlight and other sources, is the most important risk factor. The aim of this large-scale case-control study was to determine which occupations are associated with increased risk of BCC in ...
journal_title：Acta dermato-venereologica
pub_type： 杂志文章
doi：10.2340/00015555-2660
更新日期：2017-07-06 00:00:00
abstract：:Autoimmune blistering diseases (pemphigus vulgaris, pemphigus foliaceus, bullous pemphigoid, dermatitis herpetiformis) and certain genodermatoses with acantholysis (Darier-disease, Hailey-Hailey disease) have different aetiological factors, but all result in bulla formation and/or in acantholysis. Cadherins are Ca++-d...
journal_title：Acta dermato-venereologica
pub_type： 杂志文章
doi：10.1080/00015550310006842
更新日期：2004-01-01 00:00:00
abstract：:Peripheral blood T-cell subpopulations were evaluated in 32 patients affected by viral warts and in 32 unaffected individuals belonging to a control group. A significant decrease was found in total lymphocytes as well as OKT3 and OKT4 subsets among affected patients. A significant negative correlation was also found b...
journal_title：Acta dermato-venereologica
pub_type： 杂志文章
doi：
更新日期：1986-01-01 00:00:00
abstract：:Radiological examination of the hands was performed in 41 patients with systemic sclerosis. Pathological changes were found in 39 patients. Eighteen patients had subcutaneous calcifications and 11 had atrophy of the finger pulps. Bone resorption of ungual tufts was found in 11 patients. Juxta-articular osteoporosis wa...
journal_title：Acta dermato-venereologica
pub_type： 杂志文章
doi：
更新日期：1983-01-01 00:00:00
abstract：:The initiation of the antihistamine effect of a single dose of acrivastine (8 mg) or cetirizine (10 mg) on wheals and itch induced by histamine dihydrochloride (10 mg/ml) in the prick test was studied in a randomized cross-over design employing 20 healthy medical students. The prick test was performed before ingestion...
journal_title：Acta dermato-venereologica
pub_type： 临床试验,杂志文章,随机对照试验
doi：10.2340/0001555573350351
更新日期：1993-10-01 00:00:00
abstract：:Only animal experiments have been published regarding the possible effect of penicillamine treatment on mineral balance. We examined 35 patients with a diagnosis of systemic sclerosis treated with penicillamine, in comparison with 10 patients with systemic sclerosis treated with other collagen inhibitors (glutamine, h...
journal_title：Acta dermato-venereologica
pub_type： 杂志文章
doi：
更新日期：1983-01-01 00:00:00
