LIVIVO - The Search Portal for Life Sciences

zur deutschen Oberfläche wechseln
Advanced search

Search results

Result 1 - 10 of total 90

Search options

  1. Article ; Online: Influence of ultraviolet A1 exposures on mood states: a randomized controlled study.

    Haapasalo, Annina / Pasternack, Rafael / Kautiainen, Hannu / Ylianttila, Lasse / Snellman, Erna / Partonen, Timo

    Photochemical & photobiological sciences : Official journal of the European Photochemistry Association and the European Society for Photobiology

    2024  

    Abstract: We investigated the effects of daily ultraviolet A1 (UV-A1, 340-400 nm) exposures on mood states (#R19055, approval on 21 October 2020). Based on our earlier findings of the influence of diurnal preference on mood, we investigated further whether diurnal ...

    Abstract We investigated the effects of daily ultraviolet A1 (UV-A1, 340-400 nm) exposures on mood states (#R19055, approval on 21 October 2020). Based on our earlier findings of the influence of diurnal preference on mood, we investigated further whether diurnal preference plays a role in the influence of UV-A1 on mood states. Forty-one healthy participants aged 19-55 years were randomized to receive either UV-A1 (n = 21) or control (n = 20) exposures (violet light, 390-440 nm). The irradiations were administered on three consecutive mornings on the skin of the buttocks and middle back. Diurnal preference was assessed with the modified 6-item Morningness-Eveningness Questionnaire (mMEQ). Changes in mood were assessed with Total Mood Disturbance (TMD) score of the 40-item Profile of Mood States (POMS) before the first irradiation, immediately after each irradiation and one week after the last irradiation. Mood improved among those subjected to UV-A1 exposures compared with the controls (p = 0.031). Individuals with more pronounced morningness had mood improvement (p = 0.011), whereas those with more pronounced eveningness did not (p = 0.41). At follow-up of one week after the last irradiation the mood improvement had disappeared.
    Language English
    Publishing date 2024-05-15
    Publishing country England
    Document type Journal Article
    ZDB-ID 2072584-X
    ISSN 1474-9092 ; 1474-905X
    ISSN (online) 1474-9092
    ISSN 1474-905X
    DOI 10.1007/s43630-024-00587-6
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  2. Article: Atooppista ihottumaa voidaan hoitaa ennakoivasti.

    Snellman, Erna

    Duodecim; laaketieteellinen aikakauskirja

    2015  Volume 131, Issue 12, Page(s) 1163–1169

    Abstract: The inflammation and itching associated with atopic eczema can rob the patient and even the whole family of their night's sleep. Cutaneous symptoms can be quickly alleviated with a glucocorticoid cream. Calcineurin inhibitors are an alternative to ... ...

    Title translation Atopic eczema can be treated in a pre-emptive manner.
    Abstract The inflammation and itching associated with atopic eczema can rob the patient and even the whole family of their night's sleep. Cutaneous symptoms can be quickly alleviated with a glucocorticoid cream. Calcineurin inhibitors are an alternative to glucocorticoids. Regular washing of the skin must not be forgotten. In the treatment of moderate and severe atopic eczema, the frequency of applications of the medicinal cream is decreased only after the itching has ceased. Maintenance therapy does not seem to have more adverse effects than the conventional reactive mode of treatment, and can in fact be recommended especially for adults affected with moderate and severe atopic eczema.
    MeSH term(s) Administration, Cutaneous ; Calcineurin Inhibitors/administration & dosage ; Eczema/prevention & control ; Glucocorticoids/administration & dosage ; Humans ; Hygiene ; Ointments/administration & dosage
    Chemical Substances Calcineurin Inhibitors ; Glucocorticoids ; Ointments
    Language Finnish
    Publishing date 2015
    Publishing country Finland
    Document type English Abstract ; Journal Article ; Review
    ZDB-ID 127604-9
    ISSN 0012-7183
    ISSN 0012-7183
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  3. Article ; Online: Narrow-band UVB radiation triggers diverse changes in the gene expression and induces the accumulation of M1 macrophages in human skin.

    Karisola, Piia / Nikkola, Veera / Joronen, Heli / Ylianttila, Lasse / Grönroos, Mari / Partonen, Timo / Snellman, Erna / Alenius, Harri

    Journal of photochemistry and photobiology. B, Biology

    2024  Volume 253, Page(s) 112887

    Abstract: Background: The underlying molecular mechanisms that determine the biological effects of UVB radiation exposure on human skin are still only partially comprehended.: Objectives: Our goal is to examine the human skin transcriptome and related ... ...

    Abstract Background: The underlying molecular mechanisms that determine the biological effects of UVB radiation exposure on human skin are still only partially comprehended.
    Objectives: Our goal is to examine the human skin transcriptome and related molecular mechanisms following a single exposure to UVB in the morning versus evening.
    Methods: We exposed 20 volunteer females to four-fold standard erythema doses (SED4) of narrow-band UVB (309-313 nm) in the morning or evening and studied skin transcriptome 24 h after the exposure. We performed enrichment analyses of gene pathways, predicted changes in skin cell composition using cellular deconvolution, and correlated cell proportions with gene expression.
    Results: In the skin transcriptome, UVB exposure yielded 1384 differentially expressed genes (DEGs) in the morning and 1295 DEGs in the evening, of which the most statistically significant DEGs enhanced proteasome and spliceosome pathways. Unexposed control samples showed difference by 321 DEGs in the morning vs evening, which was related to differences in genes associated with the circadian rhythm. After the UVB exposure, the fraction of proinflammatory M1 macrophages was significantly increased at both timepoints, and this increase was positively correlated with pathways on Myc targets and mTORC1 signaling. In the evening, the skin clinical erythema was more severe and had stronger positive correlation with the number of M1 macrophages than in the morning after UVB exposure. The fractions of myeloid and plasmacytoid dendritic cells and CD8 T cells were significantly decreased in the morning but not in the evening.
    Conclusions: NB-UVB-exposure causes changes in skin transcriptome, inhibiting cell division, and promoting proteasome activity and repair responses, both in the morning and in the evening. Inflammatory M1 macrophages may drive the UV-induced skin responses by exacerbating inflammation and erythema. These findings highlight how the same UVB exposure influences skin responses differently in morning versus evening and presents a possible explanation to the differences in gene expression in the skin after UVB irradiation at these two timepoints.
    MeSH term(s) Female ; Humans ; Proteasome Endopeptidase Complex/metabolism ; Skin/radiation effects ; Ultraviolet Rays ; Erythema/etiology ; Macrophages ; Gene Expression
    Chemical Substances Proteasome Endopeptidase Complex (EC 3.4.25.1)
    Language English
    Publishing date 2024-03-06
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 623022-2
    ISSN 1873-2682 ; 1011-1344
    ISSN (online) 1873-2682
    ISSN 1011-1344
    DOI 10.1016/j.jphotobiol.2024.112887
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  4. Article ; Online: Ablative fractional laser-assisted photodynamic therapy for lentigo maligna: a prospective pilot study.

    Räsänen, J E / Neittaanmäki, N / Jeskanen, L / Pölönen, I / Snellman, E / Grönroos, M

    Journal of the European Academy of Dermatology and Venereology : JEADV

    2019  Volume 34, Issue 3, Page(s) 510–517

    Abstract: Background: Lentigo maligna (LM) is an in situ form of melanoma carrying a risk of progression to invasive lentigo maligna melanoma (LMM). LM poses a clinical challenge, with subclinical extension and high recurrence rates after incomplete surgery. ... ...

    Abstract Background: Lentigo maligna (LM) is an in situ form of melanoma carrying a risk of progression to invasive lentigo maligna melanoma (LMM). LM poses a clinical challenge, with subclinical extension and high recurrence rates after incomplete surgery. Alternative treatment methods have been investigated with varying results. Photodynamic therapy (PDT) with methylaminolaevulinate (MAL) has already proved promising in this respect.
    Objectives: To investigate the efficacy of ablative fractional laser (AFL)-assisted PDT with 5-aminolaevulinic acid nanoemulsion (BF-200 ALA) for treating LM.
    Methods: In this non-sponsored prospective pilot study, ten histologically verified LMs were treated with AFL-assisted PDT three times at 2-week intervals using a light dose of 90 J/cm
    Results: The complete histopathological clearance rate was 7 out of 10 LMs (70%). The pain during illumination was tolerable, with the mean pain scores for the PDT sessions on a visual assessment scale ranging from 2.9 to 3.8. Some severe skin reactions occurred during the treatment period, however.
    Conclusions: Ablative fractional laser-assisted PDT showed moderate efficacy in terms of histological clearance. It could constitute an alternative treatment for LM but due to the side effects it should only be considered in inoperable cases.
    MeSH term(s) Aged ; Aged, 80 and over ; Aminolevulinic Acid/analogs & derivatives ; Aminolevulinic Acid/therapeutic use ; Combined Modality Therapy ; Female ; Humans ; Hutchinson's Melanotic Freckle/therapy ; Laser Therapy ; Male ; Middle Aged ; Photochemotherapy ; Pilot Projects ; Prospective Studies ; Skin Neoplasms/therapy
    Chemical Substances BF-200 ALA ; Aminolevulinic Acid (88755TAZ87)
    Language English
    Publishing date 2019-10-10
    Publishing country England
    Document type Journal Article
    ZDB-ID 1128828-0
    ISSN 1468-3083 ; 0926-9959
    ISSN (online) 1468-3083
    ISSN 0926-9959
    DOI 10.1111/jdv.15925
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  5. Article ; Online: Hexyl aminolevulinate, 5-aminolevulinic acid nanoemulsion and methyl aminolevulinate in photodynamic therapy of non-aggressive basal cell carcinomas: A non-sponsored, randomized, prospective and double-blinded trial.

    Salmivuori, M / Grönroos, M / Tani, T / Pölönen, I / Räsänen, J / Annala, L / Snellman, E / Neittaanmäki, N

    Journal of the European Academy of Dermatology and Venereology : JEADV

    2020  Volume 34, Issue 12, Page(s) 2781–2788

    Abstract: Background: In the photodynamic therapy (PDT) of non-aggressive basal cell carcinomas (BCCs), 5-aminolevulinic acid nanoemulsion (BF-200ALA) has shown non-inferior efficacy when compared with methyl aminolevulinate (MAL), a widely used photosensitizer. ... ...

    Abstract Background: In the photodynamic therapy (PDT) of non-aggressive basal cell carcinomas (BCCs), 5-aminolevulinic acid nanoemulsion (BF-200ALA) has shown non-inferior efficacy when compared with methyl aminolevulinate (MAL), a widely used photosensitizer. Hexyl aminolevulinate (HAL) is an interesting alternative photosensitizer. To our knowledge, this is the first study using HAL-PDT in the treatment of BCCs.
    Objectives: To compare the histological clearance, tolerability (pain and post-treatment reaction) and cosmetic outcome of MAL, BF-200 ALA and low-concentration HAL in the PDT of non-aggressive BCCs.
    Methods: Ninety-eight histologically verified non-aggressive BCCs met the inclusion criteria, and 54 patients with 95 lesions completed the study. The lesions were randomized to receive LED-PDT in two repeated treatments with MAL, BF-200 ALA or HAL. Efficacy was assessed both clinically and confirmed histologically at three months by blinded observers. Furthermore, cosmetic outcome, pain, post-treatment reactions fluorescence and photobleaching were evaluated.
    Results: According to intention-to-treat analyses, the histologically confirmed lesion clearance was 93.8% (95% confidence interval [CI] = 79.9-98.3) for MAL, 90.9% (95% CI = 76.4-96.9) for BF-200 ALA and 87.9% (95% CI = 72.7-95.2) for HAL, with no differences between the arms (P = 0.84). There were no differences between the arms as regards pain, post-treatment reactions or cosmetic outcome.
    Conclusions: Photodynamic therapy with low-concentration HAL and BF-200 ALA has a similar efficacy, tolerability and cosmetic outcome compared to MAL. HAL is an interesting new option in dermatological PDT, since good efficacy is achieved with a low concentration.
    MeSH term(s) Aminolevulinic Acid/therapeutic use ; Carcinoma, Basal Cell/drug therapy ; Humans ; Photochemotherapy ; Photosensitizing Agents/adverse effects ; Prospective Studies ; Skin Neoplasms/drug therapy ; Treatment Outcome
    Chemical Substances Photosensitizing Agents ; Aminolevulinic Acid (88755TAZ87)
    Language English
    Publishing date 2020-07-27
    Publishing country England
    Document type Journal Article ; Randomized Controlled Trial
    ZDB-ID 1128828-0
    ISSN 1468-3083 ; 0926-9959
    ISSN (online) 1468-3083
    ISSN 0926-9959
    DOI 10.1111/jdv.16357
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  6. Article ; Online: Hyperspectral imaging system in the delineation of Ill-defined basal cell carcinomas: a pilot study.

    Salmivuori, M / Neittaanmäki, N / Pölönen, I / Jeskanen, L / Snellman, E / Grönroos, M

    Journal of the European Academy of Dermatology and Venereology : JEADV

    2018  Volume 33, Issue 1, Page(s) 71–78

    Abstract: Background: Basal cell carcinoma (BCC) is the most common skin cancer in the Caucasian population. Eighty per cent of BCCs are located on the head and neck area. Clinically ill-defined BCCs often represent histologically aggressive subtypes, and they ... ...

    Abstract Background: Basal cell carcinoma (BCC) is the most common skin cancer in the Caucasian population. Eighty per cent of BCCs are located on the head and neck area. Clinically ill-defined BCCs often represent histologically aggressive subtypes, and they can have subtle subclinical extensions leading to recurrence and the need for re-excisions.
    Objectives: The aim of this pilot study was to test the feasibility of a hyperspectral imaging system (HIS) in vivo in delineating the preoperatively lateral margins of ill-defined BCCs on the head and neck area.
    Methods: Ill-defined BCCs were assessed clinically with a dermatoscope, photographed and imaged with HIS. This was followed by surgical procedures where the BCCs were excised at the clinical border and the marginal strip separately. HIS, with a 12-cm
    Results: Sixteen BCCs were included. Of these cases, 10 of 16 were the aggressive subtype of BCC and 6 of 16 were nodular, superficial or a mixed type. HIS delineated the lesions more accurately in 12 of 16 of the BCCs compared to the clinical evaluation (4 of 16 wider and 8 of 16 smaller by HIS). In 2 of 16 cases, the HIS-delineated lesion was wider without histopathological confirmation. In 2 of 16 cases, HIS did not detect the histopathologically confirmed subclinical extension.
    Conclusions: HIS has the potential to be an easy and fast aid in the preoperative delineation of ill-defined BCCs, but further adjustment and larger studies are warranted for an optimal outcome.
    MeSH term(s) Aged ; Aged, 80 and over ; Carcinoma, Basal Cell/diagnostic imaging ; Carcinoma, Basal Cell/pathology ; Carcinoma, Basal Cell/surgery ; Dermoscopy ; Feasibility Studies ; Female ; Head and Neck Neoplasms/diagnostic imaging ; Head and Neck Neoplasms/pathology ; Head and Neck Neoplasms/surgery ; Humans ; Image Processing, Computer-Assisted/methods ; Male ; Middle Aged ; Photography ; Pilot Projects ; Skin Neoplasms/diagnostic imaging ; Skin Neoplasms/pathology ; Skin Neoplasms/surgery
    Language English
    Publishing date 2018-06-20
    Publishing country England
    Document type Journal Article
    ZDB-ID 1128828-0
    ISSN 1468-3083 ; 0926-9959
    ISSN (online) 1468-3083
    ISSN 0926-9959
    DOI 10.1111/jdv.15102
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  7. Article ; Online: Melatonin immunoreactivity of epidermal skin is higher in the evening than morning but does not account for erythema sensitivity.

    Nikkola, Veera / Huotari-Orava, Riitta / Joronen, Heli / Grönroos, Mari / Kautiainen, Hannu / Ylianttila, Lasse / Snellman, Erna / Partonen, Timo

    Chronobiology international

    2022  Volume 40, Issue 2, Page(s) 132–144

    Abstract: The skin is a site of melatonin synthesis, and melatonin has a role in protecting against ultraviolet radiation-induced damage. Ultraviolet B (UVB) induced erythema seems to vary between morning and evening. We investigated whether epidermal melatonin ... ...

    Abstract The skin is a site of melatonin synthesis, and melatonin has a role in protecting against ultraviolet radiation-induced damage. Ultraviolet B (UVB) induced erythema seems to vary between morning and evening. We investigated whether epidermal melatonin immunoreactivities in the morning differed from those in the evening, and whether UVB-induced erythema was associated with these melatonin immunoreactivities in healthy volunteers. Erythema sensitivity of the skin was determined in the morning and in the evening by scoring the Minimal Erythema Dose and quantifying the erythema index (EI). We took biopsies from the non-UVB-exposed skin of healthy volunteers (n = 39) in the morning and in the evening to study melatonin immunoreactivity with immunohistochemistry (IHC). In the IHC staining, there was more melatonin immunoreactivity in the evening than in the morning (
    MeSH term(s) Humans ; Melatonin ; Ultraviolet Rays ; Circadian Rhythm ; Skin ; Erythema
    Chemical Substances Melatonin (JL5DK93RCL)
    Language English
    Publishing date 2022-12-28
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 998996-1
    ISSN 1525-6073 ; 0742-0528
    ISSN (online) 1525-6073
    ISSN 0742-0528
    DOI 10.1080/07420528.2022.2157733
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  8. Article ; Online: 5-aminolaevulinic acid nanoemulsion is more effective than methyl-5-aminolaevulinate in daylight photodynamic therapy for actinic keratosis: a nonsponsored randomized double-blind multicentre trial.

    Räsänen, J E / Neittaanmäki, N / Ylitalo, L / Hagman, J / Rissanen, P / Ylianttila, L / Salmivuori, M / Snellman, E / Grönroos, M

    The British journal of dermatology

    2019  Volume 181, Issue 2, Page(s) 265–274

    Abstract: Background: Daylight photodynamic therapy (DL-PDT) with methyl-5-aminolaevulinate (MAL) is an effective treatment for mild and moderate actinic keratosis (AK).: Objectives: To assess the clinical efficacy, tolerability and cost-effectiveness of 5- ... ...

    Abstract Background: Daylight photodynamic therapy (DL-PDT) with methyl-5-aminolaevulinate (MAL) is an effective treatment for mild and moderate actinic keratosis (AK).
    Objectives: To assess the clinical efficacy, tolerability and cost-effectiveness of 5-aminolaevulinic acid nanoemulsion (BF-200 ALA) compared with MAL in DL-PDT for grade I-II AKs.
    Methods: This nonsponsored, prospective randomized double-blind multicentre trial included 69 patients with 767 grade I-II AKs located symmetrically on the face or scalp. A single DL-PDT was given in a randomized split-face design. The primary outcome was clearance of the AKs at 12 months as assessed by a blinded observer. The secondary outcomes were pain, treatment reactions, cosmetic outcome and the cost-effectiveness of the therapy.
    Results: In the per-patient (half-face) analysis, clearance was better for the BF-200 ALA sides than for those treated with MAL (P = 0·008). In total, BF-200 ALA cleared 299/375 AKs (79·7%) and MAL 288/392 (73·5%) (P = 0·041). The treatment was practically painless with both photosensitizers, the mean pain visual analogue scale being 1·51 for BF-200 ALA and 1·35 for MAL (P = 0·061). Twenty-six patients had a stronger skin reaction on the BF-200 ALA side, seven on the MAL side and 23 displayed no difference (P = 0·001). The cosmetic outcome was excellent or good in > 90% of cases with both photosensitizers (P = 1·000). The cost-effectiveness plane showed that the costs of DL-PDT were similar for both photosensitizers, but the effectiveness was slightly higher for BF-200 ALA.
    Conclusions: Our results indicate that BF-200 ALA is more effective than MAL in DL-PDT for grade I-II AKs. BF-200 ALA provides slightly better value for money than MAL.
    MeSH term(s) Aged ; Aged, 80 and over ; Aminolevulinic Acid/administration & dosage ; Aminolevulinic Acid/adverse effects ; Aminolevulinic Acid/analogs & derivatives ; Aminolevulinic Acid/economics ; Cost-Benefit Analysis ; Female ; Humans ; Keratosis, Actinic/diagnosis ; Keratosis, Actinic/drug therapy ; Male ; Middle Aged ; Photochemotherapy/adverse effects ; Photochemotherapy/economics ; Photochemotherapy/methods ; Photosensitizing Agents/administration & dosage ; Photosensitizing Agents/adverse effects ; Photosensitizing Agents/economics ; Prospective Studies ; Treatment Outcome
    Chemical Substances BF-200 ALA ; Photosensitizing Agents ; methyl 5-aminolevulinate (585NM85KYM) ; Aminolevulinic Acid (88755TAZ87)
    Language English
    Publishing date 2019-01-02
    Publishing country England
    Document type Comparative Study ; Journal Article ; Multicenter Study ; Randomized Controlled Trial ; Research Support, Non-U.S. Gov't
    ZDB-ID 80076-4
    ISSN 1365-2133 ; 0007-0963
    ISSN (online) 1365-2133
    ISSN 0007-0963
    DOI 10.1111/bjd.17311
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  9. Article: Miten ihotautien hoidon järjestelmää tulisi kehittää?

    Snellman, Erna

    Duodecim; laaketieteellinen aikakauskirja

    2005  Volume 121, Issue 21, Page(s) 2255–2257

    Title translation How should be dermatological care be developed?.
    MeSH term(s) Clinical Medicine/organization & administration ; Delivery of Health Care ; Dermatology/organization & administration ; Finland ; Humans ; Leadership ; Medicine/organization & administration ; Policy Making ; Specialization
    Language Finnish
    Publishing date 2005
    Publishing country Finland
    Document type Editorial
    ZDB-ID 127604-9
    ISSN 0012-7183
    ISSN 0012-7183
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  10. Article ; Online: Hexyl-5-aminolaevulinate 0·2% vs. methyl-5-aminolaevulinate 16% daylight photodynamic therapy for treatment of actinic keratoses: results of a randomized double-blinded pilot trial.

    Neittaanmäki-Perttu, N / Grönroos, M / Karppinen, T T / Tani, T T / Snellman, E

    The British journal of dermatology

    2016  Volume 174, Issue 2, Page(s) 427–429

    MeSH term(s) Administration, Cutaneous ; Aged ; Aged, 80 and over ; Aminolevulinic Acid/administration & dosage ; Aminolevulinic Acid/analogs & derivatives ; Double-Blind Method ; Female ; Humans ; Keratosis, Actinic/drug therapy ; Male ; Ointments ; Photochemotherapy/methods ; Photosensitizing Agents/administration & dosage ; Pilot Projects ; Prospective Studies ; Treatment Outcome
    Chemical Substances Ointments ; Photosensitizing Agents ; methyl 5-aminolevulinate (585NM85KYM) ; Aminolevulinic Acid (88755TAZ87) ; 5-aminolevulinic acid hexyl ester (G7H20TKI67)
    Language English
    Publishing date 2016-02
    Publishing country England
    Document type Comparative Study ; Letter ; Randomized Controlled Trial
    ZDB-ID 80076-4
    ISSN 1365-2133 ; 0007-0963
    ISSN (online) 1365-2133
    ISSN 0007-0963
    DOI 10.1111/bjd.13924
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

To top